TW550345B - Compressor and method of making same, and defroster of refrigerant circuit and refrigeration unit - Google Patents

Abstract

A rotary compressor is provided for preventing performance deterioration accompanied by the attachment of the plugs for inhibiting drop-out of the spring elements, wherein the compressor comprises a roller, which is engaged onto a cylinder for constituting a rotary compression element of the rotary compressor and an eccentric portion formed on a rotary shaft of an electromotive element and eccentrically rotates within the cylinder; a vane, which abuts the roller and comparts the cylinder into a low-pressure chamber and a high-pressure chamber; a spring, which biases the vane towards the roller; a spring receiving portion, which is provided on the cylinder and is opened towards the vane and an airtight container; a plug, which is positioned on the airtight container side of the spring and is inserted into the receiving portion; and an O-ring, which is installed around the plug and seals between the plug and the receiving portion, in which an interval between the cylinder and the airtight container is determined as being smaller than a distance from the O-ring to the airtight container end of the plug.

Description

550345 V. Description of the invention (1) [Background of the invention] The present invention relates to a compressor provided with an electric component in a container, a compression component driven by the electric component, a manufacturing method thereof, and a defrosting of a refrigerant circuit. Installations and freezers. This conventional rotary compressor, especially an internal medium-pressure multi-stage compression rotary compressor, has a refrigerant gas system sucked into the compression through a suction hole of a first rotary compression module through a refrigerant introduction pipe and a suction passage. The low-pressure chamber side of the cylinder (the first compression cylinder) is compressed to a medium pressure by the operation of the rollers and fins fitted to the eccentric part of the rotation shaft, and the high-pressure chamber side of the compression cylinder passes through the discharge hole and the muffler chamber. Spit into a closed container. The medium-pressure refrigerant gas in the hermetic container is sucked into the low-pressure chamber side of the compression cylinder (second compression cylinder) through the suction hole of the second rotary compression unit, and then the roller fitted to the eccentric part of the rotary shaft and the The fins are compressed for the second time to transform into high-temperature and high-pressure refrigerant gas. After the muffler chamber is discharged from the high-pressure chamber side through the discharge holes and discharge passages, it is then discharged from the refrigerant discharge pipe to the refrigerant circuit and flows into and rotates. The compressors collectively constitute a radiator of the refrigerant circuit. After the heat is radiated, it is compressed by the expansion valve and absorbed by the evaporator, and then the cycle operation of being sucked into the first rotary compression assembly is repeated. The eccentric portion of the rotation shaft is provided so as to have a phase difference of 180 degrees, and the two eccentric portions are connected by a connecting portion. When this rotary compressor uses a refrigerant with a large difference in high and low pressure, such as carbon dioxide (C0 2), which is one of the carbonic acid gases, as the refrigerant gas, the refrigerant pressure to be discharged will reach 12 MpaG in the second high-pressure rotary compression module. , On the other hand, it becomes

313SOS.ptd Page 12 550345 V. Invention F (2) 8MpaG ([medium pressure] C > This is the pressure in the closed container. In addition, the suction pressure of the first rotary compression component is around 4MpaG. The wings of this type of rotary compressor are inserted into a groove provided in the radial direction of the compression cylinder in such a manner as to be movable toward the radial direction of the compression cylinder. Then, a spring 孑 L (receiving portion) which opens σ toward the outside of the compression cylinder is installed on the rear side (closed container side) of the fin, and a coil spring (spring) that can urge the fin to the roller side at any time is inserted into the spring hole. Member) and insert the 0 ring into the spring hole by the opening σ on the outside of the compression cylinder, and block it with a plunger (to prevent falling off) to prevent the spring from popping out. At this time, the eccentric rotation of the roller causes the plunger to bear the pressure from the spring hole Directional force to the outside. In particular, internal-pressure rotary compressors, because the pressure in the closed container is lower than the pressure inside the compression red of the second rotary compression unit, the plunger will be subjected to the inside and outside of the compression cylinder. It has been pressed out under the influence of the pressure difference. Therefore, in the past, although the plunger was pressed into the spring hole to be fixed in the compression cylinder, this compression will cause the compression cylinder to expand and deform, blocking the compression cylinder. Production between support members (bearings) with open α faces Coffin in grave gap, the benefits of compression method to ensure tightness in the cylinder, and reduced performance and other problems. In addition, the rotary compressor of the internal medium-pressure multi-stage compressor and the pressure (high pressure) in the compression cylinder of the second rotary compression module are higher than the pressure (medium pressure) in the closed container forming the oil storage tank at the bottom. Therefore, the operation of supplying oil into the compression cylinder from the oil hole of the rotating shaft by using the pressure difference will be extremely difficult, which can only rely on the oil dissolved in the suction refrigerant to lubricate, and the problem of insufficient oil supply due to rain.

3 13808.ptd Page 13 550345 V. Description of the invention (3) This kind of internal β β, 1 chess # μ The rotary compressor τ head of the multi-stage compressor of the Zhongzhongbao type constitutes the second spinner I hate W /, the component is closed, and the opening of the compression cylinder of the module is supported by the support known in the Figure 2 system. The above-mentioned discharge silencing chamber is formed. The first minister ☆ γ > A cross-sectional view of the taxi A protection member 291. The bearing 29u of the central rotating shaft of the supporting member 291 is provided with a bushing 9Qli inside the bearing 29u. The chamber-shaped recess is formed on the outside of the bearing 291 A. The supporting member ΓΓ is used for the sound chamber m and the casing 2 94 were occluded. This casing state 'fixes its peripheral portion to the support member 29 1. ^ This is because the high pressure is formed in the discharge anechoic chamber 2 9 3 of the second rotary compression assembly, so the cover 2 94 becomes an important problem. Therefore, although a washer 296 is sandwiched between the cover 2 94 and the support structure, because the central shaft is $ 9Q1, the glaze bearing 2 9 1A side is separated from the plunger knife, and This will inevitably lead to deterioration of the sealing performance. Therefore, the base of the bearing 291A is formed into a step-shaped sealing surface 29ib, and the sealing ring 296 is placed in the 291B, and the ring 2 is sealed to seal the bearing 291A side of the housing 294. The edge portion faces the branch member 291. However, this conventional structure causes a loss of volume due to the formation of a sealing surface, and the volume is reduced. At the same time, a C-ring must be installed, which causes a problem that both the processing and the component formation increase. In addition, regarding the strength of the aforementioned cover, when the thickness dimension is too thin, the outer side is deformed due to the pressure difference between the anechoic chamber and the closed container, and leakage occurs. Conversely, when the thickness is too thick, it cannot be guaranteed to be electrically connected. , And the insulation distance between the pieces, resulting in an increase in the overall height of the compressor

Phantom 08. ptd page 14 550345 5. Description of the invention (4) Problem. In addition, although the discharge pressure of the second rotary compression unit is extremely high, conventionally, each compression cylinder is connected to a support member having a bearing by using bolts arranged in a concentric circle around the bearing. There is a risk of air leakage from the compression cylinder. In addition, as described above, when the high-low pressure difference is too large, when the cross-sectional shape of the connecting portion of the rotating shaft is circular coaxial with the rotating shaft, the cross-sectional area that can ensure physical properties is reduced, and the rotation is reduced. The shaft is prone to elastic deformation. Therefore, in the past, the cross-sectional shape of the connecting portion was made into a rugby ball shape in which the thickness in the direction orthogonal to the eccentric direction was greater than the thickness in the eccentric direction of the two eccentric portions. The increase in the number of processing steps leads to the problem of poor productivity. In addition, the hermetic compressor must be air-tightly tested for hermetically sealed containers upon completion of its manufacturing steps. This test pressure requires only about 4Mpa for general compressors. However, if C0 is used as a refrigerant as described above, the pressure of the closed container (medium pressure in the foregoing) will become extremely high, so it must be It is required to have a test pressure with a design upper limit of medium pressure of about 10Mpa. Therefore, it is difficult to simply connect the pressurizing air generating device that applies the test pressure to the closed container to the compressor. In addition, in order to perform gas-liquid separation of the refrigerant gas sucked into the first rotary compression unit, an accumulator is installed in the closed container. The pressure accumulator is welded or mounted on a bracket that is fused to the side of the closed container by a connecting band and is maintained outside the closed container. However, when the capacity of the pressure accumulator must be increased, the pressure accumulator and the Refrigerant guide

313808.ptd Page 15 550345 V. Description of the invention (5) The piping such as the inlet pipe is disturbing. Therefore, conventionally, the method of changing the shape of the bracket itself to be separated from the piping, or changing the holding position of the pressure accumulator and separating the pressure accumulator itself from the piping, etc. When coating a closed container, it will become a hooking part mounted on a production equipment rack. Therefore, the painting rack must be changed. In the latter case, it is kept away from the center of the accumulator (or Is the position of the center of gravity), which causes the problem that the vibration of the accumulator itself becomes large and the noise becomes large. In addition, when another refrigerant introduction pipe located outside the closed container is used to suck the medium-pressure refrigerant gas discharged from the closed container into the second rotary compression module, the refrigerant introduction pipe introduced into the first rotary compression module, The refrigerant introduction pipe system introduced into the second rotary compression unit is connected to the sealed container at an adjacent position. As a result, the two refrigerant introduction pipes interfere with each other, making it difficult to handle. In particular, the refrigerant introduction pipe introduced into the first rotary compression unit is generally connected to an accumulator, and the pressure accumulator is arranged above the connection position of each refrigerant introduction pipe, so it is easy to cause interference between the two refrigerant introduction pipes. , And the problem that the position of the pressure accumulator is not easy to fall. In addition, this type of rotary compressor is provided with a terminal for supplying power to an electric component in an end cap of a closed container. Fig. 23 is a cross-sectional view of a terminal portion 299 of a conventional rotary compressor. The terminal 2 9 9 is fixed to the center shown in the figure, and is fixed to the upper surface of the end cover 2 9 8 having an asymmetric cross-section. Here, the end cap 2 98 is affected by the internal high pressure, so that the terminal fused to the terminal 2 9 9 is deformed and bulged outward. In the upper part of Figures 2 and 3,

31 3808.ptd Page 16 550345 V. Description of the invention (6) The field shows the result of actually measuring the deformation of the end cap 298. In the figure, the amount of deformation in the area indicated by Z 4 is 0.2 2 // in, and the amount of deformation in the area indicated by Z5 becomes 0. 5 // m, and the deformation of the area indicated by Z 6 is The amount becomes larger and reaches a maximum of 0.9 / m. In this way, since the deformation amount of the terminal 2 9 9 becomes the largest, the welded portion of the terminal 2 9 9 and the end cap 2 9 8 is cracked or welded and peeled off, resulting in a problem that the pressure resistance performance is reduced. In addition, FIG. 25 is a cross-sectional view of a terminal portion 300 of another rotary compressor. The terminal 3 0 0 is composed of: a circular glass portion 3 2 provided with electrical terminals 3 7; and a metal mounting portion 3 0 3 formed around the terminal. The mounting portion 3 0 3 is connected by welding. It is fixed to the peripheral part of the mounting hole 306 formed in the hermetic container 304. Here, in the thickness dimension of the mounting portion 300 of the terminal 300, when it is too thin, it lacks the high pressure strength (pressure resistance performance) corresponding to the refrigerant gas in the sealed container 300, and thus becomes the mounting portion 3. 0 3 Causes such as cracks. On the other hand, when the thickness is too thick, a larger amount of heat is required when welding to the closed container 304, and this heat will cause damage to the glass portion 302, which may cause problems such as air leakage or damage. In addition, the opening surface of the compression cylinder of this type of rotary compressor is closed by a support member that internally constitutes a discharge anechoic chamber, and a bearing for a rotary shaft of an electric component is formed in the center of the support member. When the bearing and the rotating shaft are installed, even if the oil supply is insufficient, it can maintain good sliding performance, and has a high PV value (load applied according to each unit area) at high load. Abrasion-resistant carbon bushings can significantly improve rotation

313808.pid Page 17 550345 V. Description of the invention (7) The durability of rotary compressors, but because carbon bushes are expensive, there is a problem that the cost of parts increases. In addition, the refrigerant introduction pipe or the refrigerant discharge pipe is connected to a cylindrical sleeve that is welded and fixed to the curved surface of the closed container. In the past, in order to make a straight angle of the sleeve opposite to the inner diameter of the closed container, Use mold. Therefore, assembly workability is deteriorated, and accuracy of a right angle is reduced. In addition, a compression cylinder system forming a high-pressure rotary compression assembly uses a thinner one. Therefore, it is not possible to form a suction passage or a discharge passage within the thickness of the compression cylinder, but to form a suction passage or a discharge passage on the side of the support member that closes the opening surface of the compression cylinder and has a bearing, and the compression cylinder is formed in an inclined manner The suction passage and the discharge passage are communicated with the suction hole and the discharge hole in the compression cylinder. Fig. 31 and Fig. 32 illustrate the conventional processing method of such suction holes and discharge holes >. In each drawing, 3 1 1 is a compression cylinder constituting a rotary compression unit, 3 1 2 is a suction hole formed obliquely in the compression cylinder 3 1 1, and 3 1 3 is a discharge hole. When forming the suction 3 1 2, the end-mill end mill (end-m i 1 1) ML1 is inclined with the compression cylinder 31 1, even if it leans in a direction perpendicular to the inclined surface of the suction hole 3 1 2 As shown by the arrow in Fig. 31, a groove inclined with the compression cylinder is formed by moving it toward the oblique direction of the suction 孑 L 3 1 2. On the other hand, when the ejection hole 3 1 3 is formed, the end mill ML 1 and the compression cylinder 3 11 are inclined. At this time, they are approached along the oblique direction of the ejection hole 3 1 3 and as shown in FIG. As shown by the middle arrow, it is generally pressed in the inclined direction of the discharge hole 3 1 3 to form a notch inclined with the compression cylinder 3 1 1.

313808. ptd Page 18 550345 V. Description of the invention (8) As mentioned above, in order to form a suction hole 3 1 2 and a discharge hole 3 1 3 in the compression cylinder 3 1 1, a suction passage of the suction hole 3 1 2 is generated in the past. The flange portion on the side (the upper right side in FIG. 31) is formed in a straight line shape, and a disturbance of the intake gas flow is generated in the communication portion of the suction passage, which causes a problem that the passage resistance becomes large. In addition, since the end mill ML 1 must be tilted close to the compression cylinder 3 1 b, it must be processed separately from the same punching process as other screw holes or punching holes, which increases the number of steps and increases production costs. The problem. In addition, the refrigerant circuit using this internal medium-pressure two-stage compression rotary compressor requires defrosting because the evaporator generates frost, but if the defrost of the evaporator is not reduced, The high-pressure refrigerant discharged from the second rotary compression unit is directly supplied by the pressure reducing device (including: a case where the refrigerant is directly supplied to the evaporator; and a case where it passes through the pressure reducing device, but is supplied only when the pressure is not reduced). ) When it reaches the evaporator, the suction pressure of the first rotary compression unit rises, and the discharge pressure (medium pressure) of the first rotary compression unit increases. The refrigerant is discharged through the second rotary compression unit, but because the pressure of the second rotary compression unit is not the same as the suction pressure of the first rotary compression unit because the pressure is not reduced, the second rotary compression unit is discharged. The reversal phenomenon of pressure on the discharge (high pressure) and suction (medium pressure). In addition, this multi-stage compression rotary compressor of the internal medium pressure type has a higher pressure (high pressure) in the compression cylinder of the second rotary compression unit than a pressure (medium pressure) in the closed container forming the oil storage tank at the bottom It is extremely difficult to supply oil from the oil hole of the rotating shaft into the compression cylinder by using the pressure difference, and the formation can only be generated by lubricating the oil dissolved in the suction refrigerant to generate the supply.

313808.ptd Page 19 550345 V. Description of the invention (9) The problem of insufficient oil quantity. [Summary of the Invention] The present invention was created by the present invention to solve the problems of the conventional technology, and its purpose is to provide a rotary compressor which can avoid the performance caused when the plunger is fixed to prevent the spring member from falling off. deterioration. In other words, the rotary compressor of the present invention is configured by installing an electric component in a closed container and a rotary compression component driven by the electric component, and includes a compression cylinder fitted in the rotary compression component. And an eccentric part formed on the eccentric part of the rotating shaft of the electric component, and performing eccentric rotation in the compression cylinder; abutting with the roller to separate the compression cylinder into the low pressure chamber side and the high pressure chamber side wings; A spring member that urges the flap toward the roller from time to time; a receiving portion of the spring member formed in the compression cylinder and opened on the flap side and the closed container side; located on the closed container side of the spring member and inserted with a clearance fit The plunger in the receiving part; installed on the peripheral surface of the plunger to seal the 0 ring between the plunger and the receiving part, which is characterized in that the interval between the compression cylinder and the closed container is set to less than 0 ring to reach the column The distance to the end of the closed container side of the plug. In addition, the rotary compressor of the present invention includes an electric component in a hermetic container, and first and second rotary compression components driven by the electric component, and discharges the gas compressed by the first rotary compression component. A rotary compressor that compresses the discharged medium-pressure gas in a closed container by a second rotary compression unit is provided with a compression cylinder fitted in the second rotary compression unit and formed in an electric motor. The eccentric part of the rotation axis of the component, and the roller which performs eccentric rotation in the compression cylinder; and the roller

313808.ptd Page 20 550345 V. Description of the invention (ίο) Abutment to separate the inside of the compression cylinder into the low-pressure chamber side and the high-pressure chamber side flaps; A spring member; a receiving portion of the spring member formed in the compression cylinder and opening to the flap side and the closed container side; a plunger located on the closed container side of the spring member and inserted into the receiving portion with a clearance fit; mounted on the column The peripheral surface of the plug is used to seal the O-ring between the plunger and the receiving portion. The feature is that the interval between the compression cylinder and the closed container is set to less than 0 ring to reach the end of the closed container side of the plunger. For 隹. According to the present invention, there is provided a rotary compressor provided with an electric component in a hermetic container and a rotary compression component driven by the electric component. The rotary compressor includes a compression cylinder fitted in the rotary compression component, and a rotary compressor. A roller eccentric at the eccentric part of the rotating shaft of the electric component and eccentrically rotating in the compression cylinder; abutting against the roller to separate the compression cylinder from the low-pressure chamber side and the high-pressure chamber side flaps; A spring member that compresses the flap against the roller; a receiving portion of the spring member formed in the compression cylinder and opening to the flap side and the closed container side; located on the closed container side of the spring member and inserted into the receiving portion with a tight gap The plunger is installed on the peripheral surface of the plunger to seal the 0 ring between the plunger and the receiving portion. Therefore, if the fixed bolt is pressed into the receiving portion, the compression cylinder can be prevented from deforming and the sealing performance is reduced. And performance degradation. In addition, in this gap fitting, the distance between the compression cylinder and the hermetic container is set to a distance less than 0 ring to the end of the hermetic container side of the plunger. When moving in the direction and stopping the movement due to contact with the closed container, the 0 ring is still fixed and sealed at

313808.ptd Page 21 550345 V. Description of the invention (11) It will not cause any problems in the function of the plunger in the receiving section. In particular, in a multi-stage compression rotary compressor with a medium pressure inside the hermetic container, using CO helium as a refrigerant, a medium pressure in the hermetic container, and an extremely high pressure being formed in the second rotary compression assembly, the performance of the compressor is affected. It has a significant effect on maintaining and preventing the spring member from falling off. In addition, the rotary compressor of the present invention is configured by installing an electric component in a hermetic container and a rotary compression component driven by the electric component, and includes a compression cylinder fitted into a rotary compression component. And an eccentric part formed on an eccentric part of a rotating shaft of the electric component, and performing eccentric rotation in the compression cylinder; a support member having a bearing for the rotating shaft while closing the opening surface of the compression cylinder; abutting the roller to place the compression cylinder The inner segment is the flaps of the low-pressure chamber side and the high-pressure chamber side; a spring member for urging the fins toward the roller side over time; a spring member formed in the compression cylinder and opening on the wing side and the closed container side A plunger located on the side of the hermetic container of the spring member and press-fitted into the plunger, and is characterized in that the plunger is formed in a support member corresponding to the plunger and is recessed in a direction separated from the compression cylinder Escape section. In addition, the rotary compressor of the present invention is an airtight container provided with an electric component and first and second rotary compression components driven by the electric component, and can compress the gas compressed by the first rotary compression component. A rotary compressor which discharges the medium-pressure gas discharged from the airtight container by a second rotary compression unit includes a compression cylinder fitted in the second rotary compression unit and an electric motor. The eccentric part of the rotation axis of the component, and the roller that performs eccentric rotation in the compression cylinder; and the roller

313808.ptd Page 22 550345 —----—----- V. Description of the invention (12) -----, to reach f and separate the compression cylinder into a low-pressure chamber

At the same time as plugging the surface, a spring member with a rotating shaft that is formed at U with a spring shaft that compresses the flap toward the roller side is wide, and the spring is opened on the flap side and the closed container side.铉 ， 收 部 部。 Closed container located in the elastic member ... The plunger inside the component receiving section, 1 牯 outside * ^ ^ t ^ 八 固 疋 于 ΛΛ ^ ^ ^ ^ Eight, the characteristics are ... The corresponding part of the plunger, Y > becomes a retreating knife that is recessed in the direction of separation from the compression cylinder. According to the present invention, it is provided in a sealed container with electricity 1 and driven by the electricity The rotation of the rotary compression assembly; and the eccentric portion formed on the rotation axis of the electric assembly, and the rollers rotating under the pressure 2 rainbow = 2 ^ rotation; on the opening surface of the closed compression cylinder ^ the support member of the bearing of the rotation shaft J inch , With two wings that are turned to the low-pressure i side and the high-pressure chamber side "to serve the purpose: a spring member that springs the roller side of the compression cylinder to the side of the roller; it is formed in the pressure = hang, and the wing is directed toward the closed container 'side The spring component contents ,,, and open on the side of the wing ...: and are pressed in and fixed to the collection; two = The recessed recessed part of the elastic member is closed from the compression red because of the mouth: the I shrink cylinder is expanded toward the support member side. The plunger is pressed in the ^ portion, that is, the compression cylinder is deformed to Avoid problems in the pressurized cylinder = sufficient absorption through the escape section. This can avoid problems such as deterioration in performance due to voids between the deformation guides of the compression cylinder.

550345 V. Description of the invention (13)

+ In particular, the inside of the closed container is S 'compact machine' using C0 year old I # as the human spoon multi-stage compression association ^ Rotary shrinkage of the inner shape of the assembly, / for ^ a certain person 'inside the closed container is a ^ rotary dust spring member Anti-off; when in the friction tank, dust and second In addition, the effect of this hair. The purpose of maintaining performance and shrinking machine is to provide smooth and multi-segment U-shaped parts to fuel the redness. Cui only carried out the I-type rotary type in the second stage. That is, the invention. The rotative I-type reduction group is provided with an electric component, an m-type roof contraction machine, and a box-type μ wire p and the electric motor. And it is planted in the sealed container 2¼ rpm compression assembly, and can be expelled out of the sealed container, and then the V /; compression stage: j1 and rotary compressor by the second rotary compression assembly Compression k; between ^ has: * do not ^ turn the middle partition plate of the compression assembly; closed separately and used to separate the sides, and has the support of the bearing of the rotating shaft ^ the oil hole of the opening of each compression cylinder, which It is characterized in that the shape of the middle partition plate = and the supply formed on the suction side of the rotary shaft hole and the second rotary compression assembly is 70% useful to communicate the oil according to the present invention, 俜, a dense_capacity \, and The No. 02 driven by this electric component is equipped with an electric component, 1 is compressed by the m-th rotation, and the gas is compressed and closed by the component, and can be turned by: r: ^ Between the compression chambers; the pressure of the modules is used to separate the φ partition plates of the compression modules from each party to block each The opening surface of the shrink cylinder has a rotating shaft 550345. V. Description of the invention (14) A bearing support member; and an oil hole formed in the rotating shaft; Because the oil pump L is connected to the suction side of the second rotary compression assembly The oil supply system is formed in the intermediate partition plate, and even if the pressure in the compression cylinder of the second rotary compression assembly is higher than the inside of the closed container forming the intermediate pressure, the suction pressure loss during the inhalation process by the second rotary compression assembly , It is still possible to reliably supply oil from the oil supply path formed in the intermediate partition plate into the compression cylinder. Thereby, the second rotary compression unit can be reliably lubricated to achieve the purpose of ensuring performance and improving reliability. In addition, the rotary compressor of the present invention is characterized in that, in addition to the above general, a through hole is formed in the intermediate partition plate to communicate the outer peripheral surface and the inner peripheral surface on the side of the rotary shaft to form an oil supply path, and The outer peripheral surface side of the through-hole is sealed, and a communication hole that communicates the through-hole and the suction side is perforated in a compression cylinder that constitutes a second rotary compression unit. According to the present invention, in addition to the above, a through hole is formed in the intermediate partition plate to communicate with the outer peripheral surface and the inner peripheral surface on the rotation shaft side to form an oil supply path, and the outer peripheral side of the through hole is provided. It is sealed, and the communication hole connecting the through hole and the suction side is provided in the compression cylinder constituting the second rotary compression assembly. Therefore, the processing operation of the intermediate partition plate constituting the oil supply path can be simplified, and the production cost can be reduced. . Further, the present invention is an internal medium-pressure multi-stage compression type rotary compressor. The purpose of the present invention is to reliably seal a casing for closing the discharge silencing chamber of the second rotary compression unit with a simple structure. Yegen P, the rotary compressor of the present invention is a first type that is provided with an electric component in a closed container and is driven by the electric component.

313808.ptd Page 25 550345 V. Description of the invention (15) and the second rotation 1 shrinking assembly, and ^^ C0 refrigerant gas can be discharged out of the closed container, ^ ^ shrinking-the refrigerant gas compressed by the assembly will be "of Rotary Rotary Rotary Reduction Planting Parts "is equipped with a second rotary compression group rotary compressor. It is equipped with a compression cylinder opening surface and has a vertical / retractable cylinder. The bearing on the outside of the bearing :: The bearing of the rotating shaft is used to block the spit out of the anechoic chamber in the supporting member: a gasket is sandwiched between the f and the supporting member. The same feature is: outside the cover bearing. There are 0 rings in the room. A rotary compressor that compresses the medium gas at the inner peripheral end face of the shout and makes a β, and then the second rotary compression group f two limbs two, ..., the medium pressure cold-rotation compression component The compression cylinder; when the pressure is blocked; is provided with: while forming the mouth surface of the second rotating shaft standing on the central part, the outer supporting member and the compression: two = solid; on the supporting member, And the cover used to block the spit out… #, because there is a cushioned inner peripheral end face between the cover and the support member and the car is carried by the ice for 1 day ^ + + transport. @, According to the present invention It is a kind of air-tight and cry-proof ... and it is driven by the electric component. It is equipped with electric components and parts. It can press the first rotary compression component to lighten the compressed component in the closed container. The gas of the second rotation compression group is exhaled densely, and is the same as that placed between the cover and the supporting member: The base part forms a sealing surface, that is, it can be sealed on the inner periphery of the cover, and the cover and the support are prevented. Select air leakage between components. In this way, in addition to expanding the volume of the anechoic chamber,

Page 26 550345 V. Description of the invention (16) It is known that the cover is generally fixed to the bearing by a 0 ring, so the overall purpose of significantly reducing the processing cost and the cost of parts can be achieved. In addition, the present invention relates to an internal medium-pressure multi-stage rotary compressor. The purpose of the invention is to set the thickness of the casing for closing the discharge silencing chamber of the second rotary compression unit to an appropriate value. That is, the rotary compressor of the present invention is a first and a second rotary compression module provided with an electric component in a closed container and driven by the electric component, and can compress the first rotary compression component. A rotary compressor in which C0 2 refrigerant gas is discharged out of a closed container, and the discharged medium-pressure refrigerant gas is compressed by a second rotary compression unit, comprising: a compression cylinder constituting a second rotary compression unit; While closing the opening surface of the compression cylinder, a support member having a bearing erected at the center of the rotary shaft; a support member formed on the outside of the bearing and a discharge silencing chamber communicating with the interior of the compression cylinder; fixed to the support member, The cover for closing the opening of the anechoic chamber is characterized in that the thickness of the cover is set to be greater than 2 mm and less than 10 mm. In addition, in the rotary compressor of the present invention, the cover thickness is set to 6mm. According to the present invention, there are a first and a second rotary compression module provided with an electric component in a closed container and driven by the electric component, and the CO2 medium gas compressed by the first rotary compression component can be spouted out of the airtight container. A rotary compressor that compresses the discharged medium-pressure refrigerant gas in the container by a second rotary compression unit is provided with a compression cylinder constituting the second rotary compression unit, and an opening surface of the compression cylinder is closed. At the same time, with vertical

313808.ptd Page 27 550345

According to the present invention, in addition to the above, because the cover is poor on the supporting member, and the cover and the support are fixed, a "washer" is provided between the inner peripheral end surface of the cover and the outer surface of the bearing. * + B j sigh for 0% of the reason, so. V base to form a sealing surface 'that can be used within the cover; w a full trial seal, two "丄 J 甘 羊 成 i 円 周 円 面 进* Seal, to prevent air leakage between the cover and the support member, private W 4 ·! *: ».. ^ ^ Μ μ 7 丨 々 It is early that the antelope and the air leakage between the members. η can expand the volume of the anechoic chamber, and it is not necessary to fix the casing on the bearing as it is known, so as a whole, it can reduce the processing cost and the cost of parts.士 2 义 ^, _ The purpose of this description is to effectively prevent the air leakage of compression cylinders using C0 拃 as the refrigerant ^ Rina. Presentation 3 The rotary compressor of the present invention is a type in a closed container ^ » The moving component and the first rotary compression component driven by the electric component can compress the C0 2 compressed by the first rotary compression component.

Air leakage in the compression cylinder of a rotary compressor.

Page 28 550345 V. Description of the invention (18) Refrigerant gas is discharged from airtightness ^ ^ The medium pressure cold that is discharged > The second rotary compression module will be equipped with: a rotary compressor that compresses each structure separately, The opening of the compression cylinder is closed; the components are formed on the outer side of the bearing, and the bearing of the bearing with the shaft is connected to the discharge silencing chamber. The ginger piece is closed to the interior of the compression red door and It is fixed to each support member and is used to connect two compressed rainbow cymbals with two main bolts. It is characterized by: two bolster support two members located outside the main bolt and each cover, and pieces. Weighing the weight, connecting the compression cylinders and the supporting structures according to the present invention, and using the electric electric parts to plant the electric components and parts in the closed container, the first and second rotations of the ^ th rotation drive λ can be rotated. The compression group is closed in the container, and then compressed by the medium medium gas discharged from the dense medium gas = two revolutions of the reed pressure and two components, and the pressure end of the medium pressure rotation compression assembly ^ = machine, It is provided with: each constitutes each at the same time, and has in the center :; standing: each supporting member on the outside of the opening surface of each compression cylinder is blocked, a supporting member of 1 ^^ bearing; formed in a bearing chamber; ; "Shrink cylinder :: the shell of the muffler outlet that is connected to each other; * Yu is used to open the supporting member and each shell of the muffler chamber by ^: plugs, and the compression plates are connected to each compression cylinder, Each branch is connected to each compression cylinder and each auxiliary bolt standing outside the main bolt, and the compression rainbow of the second rotary compression assembly and the support member are pressed in a directional direction to improve the sealing performance. Reach

3] 3808.ptd Page 29 550345 V. Description of the invention (19) In addition, the rotary compressor of the present invention is characterized in that, in addition to the above, the rotary compressor is provided with: An eccentric part is a roller that performs eccentric rotation in a compression cylinder constituting the second rotary compression assembly; an abutment on the roller that separates the compression cylinder into a low-pressure side chamber and a high-pressure side chamber: formed in the compression cylinder and having fins The guide groove is contained therein; it is characterized in that the auxiliary bolt is located near the guide groove. According to the present invention, in addition to the above, a roller for eccentric rotation in a compression cylinder fitted in an eccentric portion of a rotary shaft of an electric component to constitute a second rotary compression component, and abutting against the roller to The compression cylinder is divided into a low-pressure side chamber and a high-pressure side chamber. It is formed in the compression cylinder and has guide grooves in which the fins are accommodated. The auxiliary bolt is located near the guide groove, so the auxiliary bolt can also be effectively prevented from being applied to the wing. Air leakage from tablet back pressure. In addition, an object of the present invention is to provide a rotary compressor which can improve the strength of a rotary truck and improve the workability. That is, the rotary compressor of the present invention is a first and a second rotary compression module which are provided with an electric component in a sealed container and driven by the electric component, and can be compressed by the second rotary compression component. The rotary compressor of the gas compressed by the first rotary compression unit is provided with: first and second compression cylinders constituting the first and second rotary compression units; and fitted at 180 degrees The first and second rollers, which are formed on the first and second eccentric portions of the rotary shaft of the electric component and are eccentrically rotated in each compression cylinder, are characterized in that they are the connecting portions that connect the two eccentric portions. The cross-sectional shape is made thicker than the two eccentric portions in a direction orthogonal to the eccentric direction

313808.ptd Page 30 550345 V. Description of the invention (20) The shape of the thickness in the eccentric direction, and the side surface on the eccentric direction side of the first eccentric portion of the connecting portion is made into an arc with the same center as the second eccentric portion. Shape, the side surface on the eccentric direction side of the second eccentric portion is formed into an arc shape with the same center as the first eccentric portion. According to the present invention, there is provided a first rotary compression module and a first rotary compression module provided with an electric module in a closed container and driven by the electric module. The first rotary compression module can compress the second rotary compression module. Rotary compressor for compressed gas, comprising: first and second compression cylinders constituting first and second rotary compression units; and fitted to an electric unit fitted with a phase difference of 180 degrees The first and second eccentric parts of the rotating shaft of the rotary shaft are eccentrically rotated in each compression cylinder, because the cross-sectional shape of the connecting part connecting the two eccentric parts is made positive with the eccentric direction. The shape in which the thickness in the intersection direction is larger than the thickness in the eccentric direction of the two eccentric portions can increase the rigidity and strength of the rotation shaft and effectively prevent its elastic deformation. In particular, the side surface of the eccentric direction side of the first eccentric portion of the connecting portion is formed in a circular arc shape with the same center as the second eccentric portion, and the side surface of the eccentric direction side of the second eccentric portion is formed to correspond to the first 1 The arc shape of the same center of the eccentric portion can reduce the number of times of changing the chuck position when cutting a rotating shaft having two eccentric portions and a connecting portion. This not only reduces the number of processing steps, but also reduces costs due to improved productivity. In addition, the object of the present invention is to provide a hermetic compressor using C 0 拃 as a refrigerant, which can be easily fed even in a high pressure state in a hermetic container.

313808.ptd Page 31 550345 V. Description of the invention (21) Airtight test. That is, the hermetic compressor of the present invention is a C 0 that can be sucked in by a refrigerant introduction pipe, and includes a first and a second rotary compression module that are provided with an electric component in a hermetic container and driven by the electric component. The refrigerant is compressed by a compression component and is discharged out of the closed container, and then is discharged from the refrigerant discharge pipe to the outside. The rotary compressor is provided with a sleeve installed in the closed container and capable of connecting the refrigerant introduction pipe and the refrigerant discharge pipe separately. And, around the outer surface of the sleeve, a flange portion for coupling with a coupling for piping is formed. According to the present invention, a sealed container is provided with an electric component and first and second rotary compression components driven by the electric component. The C 0 refrigerant sucked through the refrigerant introduction pipe can be compressed and compressed by the compression component. It is a hermetic compressor which is discharged from the sealed container and then discharged from the refrigerant discharge pipe to the outside. Since it is provided in the sealed container, a sleeve can be connected to the refrigerant introduction pipe and the refrigerant discharge pipe, and it is outside the sleeve. A flange portion is formed around the coupling for coupling the piping. The flange portion can be used to simply connect the noodle connector provided on the piping of the compressed air generating device to the sleeve of the closed container. in. Thereby, the air-tight test in the manufacturing steps of the hermetic-type compressor in which a high pressure is internally formed can be completed in a short time. In addition, the hermetic compressor of the present invention is a compression module provided with an electric component in a hermetic container and driven by the electric component. The C 0 refrigerant sucked through the refrigerant introduction pipe can be compressed and compressed by the compression component. Spit out of the sealed container, and then spit out from the refrigerant discharge pipe to the outside.

313808.ptd Page 32 550345 V. Description of the invention (22) The shrinking machine is characterized in that it has a sleeve which is installed in a closed container and can connect the refrigerant introduction pipe and the refrigerant discharge pipe separately, and the outside of the sleeve Around it, a threaded groove is formed to connect the piping. According to the present invention, a sealed component is provided with an electric component in a sealed container and a compression component driven by the electric stiffener. The C 0 refrigerant sucked through the refrigerant introduction pipe can be compressed by the compressed component and spit out of the sealed container. The sealed compressor that discharges the refrigerant from the refrigerant discharge pipe to the outside is provided with a sleeve installed in a closed container, which can connect the refrigerant introduction pipe and the refrigerant discharge pipe separately, and forms a useful tool around the outer surface of the sleeve. The threaded groove of the connecting pipe can be used to simply connect the pipe of the squeeze air generating device to the sleeve of the closed container. Thereby, the air-tight test in the manufacturing steps of the hermetic-type compressor in which a high pressure is internally formed can be completed in a short time. In addition, the hermetic compressor of the present invention is a compression module provided with an electric component in a hermetic container and driven by the electric component. The C 0 refrigerant sucked through the refrigerant introduction pipe can be compressed and compressed by the compression component. The compressor, which is discharged from the sealed container and then discharged from the refrigerant discharge pipe to the outside, includes: most of the sleeves installed in the sealed container, which can be connected to the refrigerant introduction pipe and the refrigerant discharge pipe, respectively. Adjacent one of the outer sleeves is formed with a thread groove for connecting the piping to the outside of the flange portion of the coupler for connecting the piping, and around the outer sleeve of the other one. According to the present invention, a hermetically sealed container is provided with an electric component and a compression component driven by the electric component.

313808.ptd Page 33 550345 V. Description of the invention (23) The C0 refrigerant sucked by the introduction pipe is compressed by a compression component and discharged from the closed container, and then the refrigerant discharge pipe is used to discharge the sealed compressor to the outside. In the closed container, most of the sleeves of the refrigerant introduction pipe and the refrigerant discharge pipe can be connected respectively, and around the outer side of the adjacent one of the sleeves, a flange portion for fastening the coupler for connecting the piping is formed. At the same time, a thread groove for connecting the piping is formed around the outer side of the other sleeve, so the flange portion can be used to simply snap-connect the coupler provided in the piping of the squeeze air generating device to the closed container. One of the sleeves is simply connected to the other sleeve of the closed container by using a thread groove. Thereby, the air-tightness test in the manufacturing steps of the hermetic compressor in which a high pressure is internally formed can be completed in a short time. In particular, because the flange portion is formed in the adjacent sleeve and the thread groove is formed in the other sleeve, the situation where the couplers with larger sizes are adjacent to each other can be eliminated. When the space between the tubes is relatively narrow, the narrow space can be used to connect a plurality of pipes of the compressed air generator. In addition, the present invention is to provide a compressor that can easily respond to a change in the capacity of an accumulator. Also βρ, the compressor of the present invention is a compressor in which an electric component is installed in a container and a compression component driven by the electric component. The compressor includes a container-side bracket provided on the side of the container, and a pressure accumulator. ; And an accumulator-side bracket on which the accumulator is installed, characterized in that the accumulator-side bracket is fixed to the container-side bracket and the accumulator is installed on the container through two brackets Inside.

313808.rtd Page 34 550345 V. Description of the invention (24) In addition, the compressor of the present invention is characterized in that the above-mentioned accumulator-side bracket is installed at the center or center of gravity of the accumulator, or near it. According to the present invention, a compressor in which an electric component is provided in a container and a compression component driven by the electric component is provided. The compressor includes: a container-side bracket provided on a side of the container; a pressure accumulator; The accumulator-side bracket of the pressure accumulator is fixed by changing the accumulator-side bracket to the container-side bracket, and the accumulator is installed in the container via the two brackets. In the case of the compressor capacity, it is not necessary to change the bracket on the side of the closed container, and only the bracket on the accumulator side is changed to prevent interference with the piping. Therefore, the influence on the manufacturing equipment of the compressor can also be eliminated. In addition, when the capacity of the accumulator changes, the accumulator side can also be installed at its center or center of gravity position, or near it by changing the accumulator side bracket, so that the accumulator can be maintained. At the center or center of gravity of the accumulator, or near it, to prevent the increase of noise caused by vibration. Another object of the present invention is to provide a compressor which can prevent the first and second refrigerant introduction pipes from interfering with each other and improve space efficiency. That is, the compressor of the present invention is a compressor provided with an electric component and first and second compression components driven by the electric component in a hermetic container; and further comprising: compressing by introducing a refrigerant into the first compression component A refrigerant pipe for introducing the medium-pressure refrigerant gas compressed by the first compression module into the refrigerant pipe of the second compression module; and a compressor for the refrigerant pipe which discharges the high-pressure gas compressed by the second compression module, characterized in that: The refrigerant pipes of the first and second compression modules are connected to the hermetic container at adjacent positions, and the hermetic container is surrounded by the hermetic container in the opposite direction.

313S〇8.ptd Page 35 550345 V. Description of the invention (25) In addition, the compressor of the present invention is characterized by the following: As described above, the refrigerant pipe of the first compression module is under the refrigerant pipe of the second compression module. A side position is connected to the hermetic container, and a pressure accumulator is arranged at a connection position between each refrigerant tube and the hermetic container, and the pressure accumulator is connected to the refrigerant tube for introducing the refrigerant into the first compression module. According to the present invention, a sealed container is provided with: an electric component; first and second compression components driven by the electric component; a refrigerant tube introduced into a refrigerant compressed by the first compression component; The medium-pressure refrigerant gas compressed by the compression module is introduced into the refrigerant pipe of the second compression module; and the compressor of the refrigerant pipe that discharges the high-pressure gas compressed by the second compression module; due to the refrigerant pipe system of the first and second compression modules It is connected to the closed container at adjacent positions, and the closed container surrounds in the opposite direction, so that each refrigerant tube can avoid mutual interference in a limited space. In particular, when the refrigerant pipe of the first compression module is connected to the closed container at the lower position of the refrigerant pipe of the second compression module, and the pressure accumulator is arranged above the connection position between each refrigerant pipe and the closed container, and When the pressure accumulator is connected to the refrigerant pipe that introduces the refrigerant into the first compression module, not only can the two refrigerant pipes be prevented from interfering with each other, but the position of the pressure accumulator can be lowered to the lowest position to bring it closer to the refrigerant of the second compression module Tube, while significantly improving space efficiency. In addition, the compressor of the present invention is an airtight container provided with an electric component and first and second compression components driven by the electric component. The refrigerant gas sucked by the first refrigerant introduction pipe can be borrowed. Compressed by the first compression unit and spit out of the closed container, and then located outside the closed container

313808.ptd page 36 550345 5. The second refrigerant introduction pipe of the description of the invention (26) sucks the medium-pressure refrigerant gas that is discharged and compresses it by the second compression module, which is characterized by the first and the second 2 The refrigerant tube of the compression assembly is connected to the closed container at adjacent positions, and the closed container is surrounded by the closed container in the opposite direction. In addition, the compressor of the present invention is characterized in that, as described above, the first refrigerant introduction pipe is connected to the closed container at a position lower than the second refrigerant introduction pipe, and at a position where each refrigerant introduction pipe is connected to the closed container. An accumulator is arranged above, and a first refrigerant introduction pipe is connected to the accumulator. According to the present invention, a sealed container is provided with an electric component and first and second compression components driven by the electric component. The refrigerant gas sucked in by the first refrigerant introduction pipe can pass through the first component. The compression unit compresses and spit out of the sealed container, and then sucks the medium pressure refrigerant gas discharged through the second refrigerant introduction pipe located outside the closed container, and compresses by the second compression unit. 2 The refrigerant tube of the compression assembly is connected to the closed container at adjacent positions, and the closed container surrounds in the opposite direction, so that each refrigerant tube can avoid mutual interference in a limited space: In particular, when the first refrigerant introduction pipe system is connected to the closed container at a position lower than the second refrigerant introduction pipe, the pressure accumulator is arranged above the connection position between each refrigerant introduction pipe and the closed container, and When the pressure accumulator is connected to the first refrigerant introduction pipe, not only can the two refrigerant introduction pipes interfere with each other, but also the position of the pressure accumulator can be lowered to the lowest position, so that it can approach the second refrigerant introduction pipe, and Significantly improve space efficiency. In addition, the object of the present invention is to provide a hermetic compressor which can

313808.ptd Page 37 550345 V. Description of the invention (27) Prevent the adverse effects caused by the deformation of the end cap of the closed container. Yegen P, the hermetic compressor of the present invention is a compressor provided with an electric component in a hermetic container, and a compression component driven by the electric component. The compressor compresses refrigerant and spit out of the hermetic container. The compressor is characterized in that it has a terminal provided with an end cap mounted on the closed container, and a step with a predetermined curvature is formed by pressing the end cap around the terminal together. According to the present invention, a hermetic compressor including an electric component in a hermetic container, and a compression component driven by the electric component, and compressing the refrigerant through the compression component and ejecting the refrigerant out of the hermetic container. There is a terminal installed in an end cap of a closed container, and a step with a predetermined curvature is formed by pressing the end cap around the terminal. Therefore, the rigidity of the end cap near the terminal can be improved, especially as the C0 helium is compressed into In the case of a refrigerant, when the pressure in the closed container is increased, the deformation of the end cap due to the internal pressure of the closed container can be reduced, and the purpose of improving the pressure resistance can be achieved. — In addition, the hermetic compressor of the present invention is characterized in that, as described above, the end cap is slightly bowl-shaped, and the step difference is axisymmetric about the center axis of the end cap, and the terminal is installed at The end cap is centered. According to the present invention, in addition to the above, the end cap is slightly bowl-shaped, and the step difference is formed to be axisymmetric about the center axis of the end cap, and the terminal is installed at the center position of the end cap. The deformation of the end cap of the terminal welding portion caused by the internal pressure of the closed container prevents the cracking or peeling of the welding portion due to uneven deformation in advance, thereby further improving its pressure resistance. In addition, the object of the present invention is to provide a hermetic compressor which can

313808.ptd Page 38 550345 V. Description of the invention (28) Avoid adverse effects that occur in the terminal part used to supply power to the electric components in advance. Yegen P, the hermetic compressor of the present invention is a compression assembly provided with an electric component in a hermetic container, and a compression component driven by the electric component, and the compression component compresses the C 0 ling medium and spit out A hermetic compressor in a hermetic container includes a terminal installed in the hermetic container, wherein the terminal has a round glass portion penetrating and mounting an electrical terminal; and the terminal is formed around the glass portion and is welded. A flange-shaped metal mounting portion fixed to a peripheral portion of a mounting hole of the hermetic container, and the thickness of the mounting portion is set to a range of 2.4 ± 0.5 mm. In addition, the hermetic compressor of the present invention is provided with an electric component in a hermetic container, and the first and second compression components driven by the electric component, and the CO2 compressed by the first rotary compression component is compressed. The medium gas is discharged from the closed container, and then the medium-pressure refrigerant gas discharged from the second rotary compression unit is compressed. The medium gas is provided with a terminal installed in the closed container. 4circular glass portion; and a flange-shaped metal mounting portion formed around the glass portion and welded and fixed to the peripheral portion of the mounting hole of the closed container, and the thickness dimension of the mounting portion is set at 2. 4 ± 0 . 5mm range. According to the present invention, a terminal provided in a hermetic container of a hermetic compressor is provided, and the terminal has a circular glass portion penetrating and mounting an electrical terminal; and the glass portion is formed around the glass portion and is fixed by welding. A flange-shaped metal mounting portion at the periphery of the mounting hole of the closed container, and the thickness dimension of the mounting portion is set in the range of 2.4 ± 0.5 mm, so it is being used

313SOS.ptd Page 39 550345 V. Explanation of the invention (29) In the hermetic compressor of C0 medium with an increased pressure in the closed container, the pressure resistance performance of the terminal can be ensured, and the increase in heat required for welding and fixing can be controlled. Big. In this way, it is possible to prevent cracks in the mounting portion of the terminal or air leakage or terminal damage due to damage to the glass portion in advance. Furthermore, an object of the present invention is to provide a rotary compressor 'which can minimize the cost increase caused by a carbon bushing provided between a bearing and a rotary shaft. Yegen P, the rotary compressor of the present invention is a compressor provided with an electric component in a closed container and a compression component driven by the electric component, and is provided with: A single or a plurality of compression cylinders of the module; a first branch member having a bearing of a rotating shaft of the electric module while closing the open surface on the opposite side of the electric module of the compression cylinder; A second support member having a bearing for the rotating shaft at the same time as the opening surface, a carbon shaft interposed between the bearing and the rotating shaft is provided in one of the bearings of the first and second supporting members. lining. The rotary compressor of the present invention is characterized in that, as described above, a bush is provided in the bearing of the first support member. In addition, the rotary compressor of the present invention includes an electric component in a hermetic container, and first and second compression components driven by the electric component, and discharges the gas compressed by the first rotary compression component. In the closed container, the discharged medium-pressure gas is compressed by a second rotary compression unit. The second medium includes: a first rotary compression unit and a second rotary compression unit.

51? S08.pld Page 40 550345 V. Description of the invention (30) 1 and 2 compression cylinders; while closing the opening surface of the first compression cylinder, the first optional component of the bearing of the rotary car with electric components And a second support member having a bearing for the rotating shaft while closing the opening surface of the second compression cylinder, characterized in that one of the first and second support members is provided with a bearing intervening in the bearing Carbon bushing with the rotating shaft. In addition, as a feature of the rotary compressor of the present invention, as described above, a bush is provided in a bearing of the second support member. In addition, according to the feature of the rotary compressor of the present invention, as in the above-mentioned inventions, the rotary compression unit compresses the helium co gas into a refrigerant. According to the present invention, there is provided a rotary compressor including a motor-driven component and a compression component driven by 4 electric and hydraulic components in a hermetic container. The rotary compressor is provided with a unit for forming a rotary compression component. Or a plurality of compressions; while closing the open surface on the opposite side of the electric component of the compression cylinder, the first support member having a bearing of the rotary shaft of the electric component; and the open surface of the electric component on the compression cylinder side At the same time, the second support member having a bearing for the rotating shaft is compared with a carbon bushing interposed between the bearing and the rotating shaft in one of the first and second supporting members. In the case where the shaft view is provided in the bearings of the two supporting members respectively, the purpose of reducing costs can be achieved more. In particular, if a bushing is provided in the bearing of the first support member, and the shaft member is not provided in the bearing of the second member # 2 which has a larger contact area with the rotating shaft on the electric component side of the compression cylinder, it can be maintained The sliding performance of the bearing of the first support member having a small pressure-bearing area and a large load per unit area is maintained and durability performance is maintained.

3l3S08.ptd Page 41 550345 V. Description of the invention (31) The bearing lining of the second support member with a smaller load per unit area is used to reduce costs. In addition, according to the present invention, a first container and a second compressor are provided with a module in a sealed container and driven by the electric module, and the gas compressed by the first rotary compression module is discharged. Crying in hermetic capacity and compressing the discharged medium-pressure body by a second rotary compression unit, the ^ rotary compressor is provided with a first compressor for constituting a first rotary compressor and a second rotary compression module. And a second compression cylinder; an i-th support member having a bearing of the rotary shaft of the electric component while closing the opening surface of the J-th compression cylinder; and a bearing having a rotary shaft while closing the opening surface of the second compression cylinder The second supporting member; because it is attached to one of the i and the second supporting member, a carbon bushing between the bearing and the rotating shaft is provided, which can further reduce the component cost; install the shaft It is difficult to provide a bushing in the bearing of the second support member, and it is difficult to install a bushing in the bearing of the a-th member having no opening on the opening surface of the first compression cylinder with a pressure of 11 in the component. The second dynamic force J in the bearing of the second support member: To Oil trap 1 support: Removal of the first bushing that will not cause oil supply difficulties due to pressure difference, and achieve cost reduction. At extreme pressures, the durability of the compressor = f, and the male trapper Internally changed. The maintenance is more effective.

550345 V. Description of the invention (32) In addition, the present invention provides a hermetic compressor, which can easily maintain the straight angle of the sleeve fixed in the hermetic container. Yegen P, the hermetic compressor of the present invention is a compressor provided with an electric component in a hermetic container and a compression component driven by the electric component, and the refrigerant sucked in by the refrigerant introduction pipe is compressed by the compression component. The compressor discharged from the refrigerant discharge pipe is provided with a sleeve corresponding to the through hole formed on the curved surface of the closed container and connected with the refrigerant introduction pipe or the refrigerant discharge pipe, and is characterized by: At the same time as forming a flat surface on the outside of the closed container, an insertion portion is formed on the sleeve to be inserted into the through-hole; a flat surface is in contact with the surrounding container and is in contact with the closed container; It is fixed by injection welding. According to the present invention, a hermetically sealed container is provided with an electric component and a compression component driven by the electric component, and the compression component compresses the refrigerant sucked into the refrigerant introduction pipe and then spit out from the refrigerant discharge pipe. Type compressor, which includes a through hole formed on the curved surface of the closed container and connected to a refrigerant introduction pipe or a refrigerant discharge pipe, and a flat surface is formed on the outside of the closed container around the diaphragm L. At the same time, an insertion part inserted into the through hole is formed on the sleeve; a flat surface located around the sleeve and in contact with the closed container, and the contact portion of the sleeve and the flatness of the closed container are fixed by injection welding. Surface, the contact between the flat surface of the closed container and the contact portion of the sleeve can be used to ensure a straight angle with respect to the sleeve of the inner diameter of the closed container. In this way, the straight angle of the sleeve can be maintained without using a mold to achieve the purpose of improving productivity and precision. In addition, the characteristics of the hermetic compressor of the present invention are as described above,

313808.ptd Page 43 550345 --——_ V. Description of the invention (33) # _㈠a w According to the present invention, due to the flat surface of the preacher μ, it can be buried in the airtight: cleverly penetrated, and the surrounding depressions form the surface and the depression. • One step of straightening the casing: two :::: . The angle is maintained at a good precision by forming a flat surface recessed around the penetrator L: Tailu BS. 丄 h. "Buco: The purpose of the invention is to create a method that can reduce the path of the inhaled gas ^, '栻, and its system Processing of suction and discharge holes in the cylinder. W is easy to compress. It is equipped with an electric motor, which is located in a closed container. At the same time as the cylinder and the KI surface of the rotary shaft formed on the electric component, Ϊ = the roller that rotates; Γ inlet; inclined formed in the compression cylinder, the two special cities are: the suction and the inlet passage communicate with the suction in the compression cylinder. The edge portion of the suction channel side of the hole A is made of: round; according to the present invention and a compression assembly that is driven by a compressor with a compressor in a closed container by the electric device, it, The shrinking cylinder and the shape 2 are provided with: ... to constitute two or two rotating rollers with a rotation c; a supporting member for closing the second cylinder of the compression cylinder; a suction passage 3b'8〇8.ptd formed on the supporting member Page 44 550345 V. Description of the invention (34) way; Inclined in the compression cylinder, corresponding to the suction passage of the support member, the suction passage communicates with the suction hole in the compression cylinder, and the edge portion of the suction passage side of the suction hole is made The semi-circular arc shape can reduce the path resistance between the suction hole and the suction path, and reduce the flow resistance to achieve efficient operation. In addition, the manufacturing method of the present invention is a method of manufacturing a compression assembly in which an electric component is provided in a closed container and driven by the electric component, and includes a compression cylinder fitted in a rotary compression component and A roller formed on the eccentric part of the rotating shaft of the electric component and rotating eccentrically in the compression cylinder; a support member having a bearing for the rotation shaft while closing the opening surface of the compression cylinder; And rotary compressors that are formed obliquely in the compression cylinder and correspond to the suction passage of the support member so that the suction passage communicates with the suction hole in the compression cylinder; While maintaining the vertical state, the suction hole is processed by moving it in a direction inclined to the compression cylinder. According to the invention, since the inclined suction hole can be formed in the compression cylinder in a state where the end mill having a flat front end and the compression cylinder are perpendicular, it is possible to perform other perforation processing such as screw holes or punching holes in the same step. By forming the suction hole, the production cost can be reduced by reducing the number of steps. In addition, with this processing, even the end mill with a flat front end can form a semicircular arc on the side of the suction passage side of the suction hole. Therefore, as described above, the communication between the suction hole and the suction passage can be reduced. Path resistance to reduce air flow turbulence for efficient operation.

313SOS.pid Page 45 550345 V. Description of the invention (35) In addition, the manufacturing method of the present invention is characterized in that it is a method of manufacturing a compression device that is provided with an electric component in a closed container and driven by the electric component. And an eccentric part formed on a rotary shaft of an electric component to rotate the eccentric part in the compression cylinder and a roller for eccentric rotation in the compression cylinder; At the same time, a support member having a bearing for a rotating shaft; a discharge passage formed in the support member; and a rotary type formed by being inclinedly formed in the compression cylinder to correspond to the discharge passage of the support member to the discharge hole in the compression cylinder. Compressor; the processing of the injection hole is performed by a part of the end mill with a mountain-shaped front end against the compression cylinder vertically. According to the present invention, since a part of the end mill with a mountain-shaped front end can be vertically leaned against the compression cylinder, the inclined injection hole can be formed in the compression cylinder, so other screw holes or punching holes can be made. The ejection holes are formed in the same step of the perforation process, and the production cost can be reduced by reducing the number of steps. In addition, the object of the present invention is to prevent the reverse of the suction and discharge pressure of the second compression module caused by the defrost of the evaporator in the refrigerant circuit using the internal medium-pressure two-stage compression compressor. That is, the defrosting device of the present invention includes an electric component in a sealed container, and first and second compression components driven by the electric component, and compresses the first compression component. The refrigerant gas is discharged out of the closed container, and the compressor that compresses the medium-pressure refrigerant gas discharged by the second compression unit; the gas cold bath P device that flows into the refrigerant discharged by the second compression unit of the compressor; connected to A pressure reducing device on the outlet side of the gas cooler; and an evaporator connected to the outlet side of the pressure reducing device, the characteristics of which

3138Q8.ptd Page 46 550345 V. Description of the invention (36) The feature is that the refrigerant circuit that uses the first compression module to compress the refrigerant generated by the evaporator is provided with: A defrost circuit supplied to the evaporator under pressure; and a flow path control device for controlling a refrigerant flow in the defrost circuit. In addition, the defrosting device of the refrigerant circuit of the present invention is characterized as described above, and each compression module compresses CO helium gas into a refrigerant. In addition, the defrosting device of the refrigerant circuit of the present invention is characterized in that it is similar to the above-mentioned inventions in that warm water is generated by heat radiation from a gas cooler.

According to the present invention, there is provided a refrigerant circuit for compressing a refrigerant generated in the evaporator by a first compression module, comprising: an electric component in a sealed container; and first and second components driven by the electric component. The second compression unit, and the refrigerant gas compressed by the first compression unit is discharged out of the closed container, and then the second compression unit is used to compress the medium pressure refrigerant gas that is discharged; and the second compression is performed by the compressor A gas cooler of the refrigerant discharged from the module; a pressure reducing device connected to the outlet side of the gas cooler; and an evaporator connected to the outlet side of the pressure reducing device; because it is provided with: The refrigerant discharged from the first compression unit is supplied to the defrost circuit of the evaporator and a flow path control device for controlling the flow of the refrigerant in the defrost circuit. Therefore, when the evaporator is defrosted, the flow path control device can be used. The refrigerant discharged from the first compression module is caused to flow into the defrosting circuit, and is supplied to the evaporator and heated without being decompressed. This makes it possible to avoid reverse pressure of the discharge and suction in the second compression module, as in the case where the high-pressure refrigerant discharged from the second compression module is supplied to the evaporator for defrosting without being decompressed.

3] 5808.ptJ page 47 550345 V. Description of the invention (37) Especially in the refrigerant circuit using CO ammonia as the refrigerant, the effect is more significant. In addition, when warm water is generated by the body cooler, the heat of the warm water of the gas cooler can be transmitted to the evaporator through the refrigerant, thereby accelerating the defrost of the evaporator. The present invention is an internal medium-pressure multi-stage compression rotary compressor, and its object is to smoothly and reliably supply oil to a compression cylinder of a second high-pressure rotary compressor unit. Also, gp, the rotary compressor of the present invention is a refrigerant provided with an electric component in a sealed container, and first and second compression components driven by the electric component, and compressing the first compression component. A rotary compressor which discharges the gas out of the closed container and compresses the medium-pressure refrigerant gas discharged by the second compression unit includes first and second rotary compressors respectively constituting the first and second rotary compression units. A compression cylinder; an intermediate partition plate between the compression cylinders to separate the rotary compression components; a support member that blocks the opening surface of each compression cylinder and has a bearing for the rotary shaft of the electric component; and The oil hole of the rotating shaft is characterized in that an oil supply groove for communicating the oil hole and the low-pressure chamber in the second compression cylinder is formed on the surface of the second compression cylinder side of the intermediate partition plate. According to the present invention, there is provided an electric component in a hermetic container, and first and second compression components driven by the electric component, and the refrigerant gas compressed by the first compression component is discharged into the hermetic container, A rotary compressor that compresses the discharged medium-pressure refrigerant gas by a second compression unit is provided with first and second compression cylinders configured to constitute the first and second rotary compression units, respectively. The compression cylinders are used to separate the spins.

31380S.ptd Page 48 550345 V. Description of the invention (38) Intermediate partition plate of the rotary compression assembly; each block is blocked separately "and the bearing support of the rotating shaft of the electric component 7 The red opening is made of oil on the rotating shaft The hole · is an oil supply groove for communicating with the low-pressure chamber in this, Niu and Cheng / cheng, and is formed on the surface of the second compression cylinder of the middle partition hole f, so even the pressure of the second rotary compression assembly The second compression cylinder of ^ = After forming a closed container of medium pressure, the pressure in the first $ can still be used ^,, "The suction pressure of the compression assembly during the suction process is lost, and recognized by the shape + oil Groove to reliably supply oil into the compression cylinder. The supply of the intermediate partition plate enables the lubrication of the second rotary compression module to be surely performed to ensure performance and improve reliability. In particular, it is only necessary to groove the surface of the second compression cylinder side of the intermediate partition plate to form an oil supply groove. Therefore, the structure can be simplified, and an increase in production cost can be suppressed. [Best Mode for Carrying Out the Invention] Next, an embodiment of the present invention will be described in detail with reference to the drawings. In each figure, 10 is an internal medium-pressure multi-stage (two-stage) compression type rotary compressor (hermetic electric compressor) using carbon dioxide (C02) as a refrigerant. The rotary compressor 10 series Consists of: a cylindrical hermetic container 12 formed of a steel plate; an electric component 1 4 arranged and housed on the upper side of the internal space of the hermetic container 2; and a lower part of the electric component 14; The rotary compression mechanism 32, which is driven by the rotary shaft 16 and the i-th rotary compression unit 32 (first stage) and the second rotary compression unit (second stage), is configured. The height of the rotary compressor of the embodiment is 2 2 0_ (120 mm in outer diameter) 'The height of the electric component 14 is about 8 0_ (outer diameter is 1 10 mm)' The height of the rotary compression mechanism portion 18 is about 7 〇Band (outer diameter is

3] 3S08.ptd Page 49 550345 --- ^ ~ _____ ^ a ^^ V. Description of the invention (39) 110mm), the distance between the electric component 14 and the rotary compression mechanism section 8 is about 5mm. The discharge volume of the second rotary compression unit 34 is set to be smaller than the discharge volume of the first rotary compression unit 32. In the embodiment, the hermetic container 12 is a cylindrical container body 1 composed of a steel plate having a thickness of 4.5 mm, with a bottom as an oil storage tank, and an electric component 14 and a rotary compression and structure 18. 2A; The upper cover ^ opening of the container body i 2A is formed by a slightly bowl-shaped end cover (lid body) 12B, and a circular mounting hole 12D is formed in the upper center of the end, and the mounting hole 12D 2 〇The terminal for supplying power to the electric component 14 is installed (the wiring is omitted). At this time, 'the end portion 1 2 B around the terminal 20 is formed by a stepped portion (stepped portion) having a predetermined curvature during extrusion molding 2 c A ring is formed in an axially symmetric shape with the center axis of the end cap 1 2 B being =. In addition, as shown in FIG. 24, the terminal 2 ′ is formed by a circular glass portion A ′ through which electrical terminals 1 39 are inserted and installed, and formed around the glass portion 20 A. The flange-shaped iron-made (S2 5C to S45C) mounting portion 20B is formed, and the mounting portion is the same as: forming an axisymmetric shape around the center axis of the cover 1 2B. The thickness of the mounting P 2〇B is in the range of 2 · 4 ± 0 · 5mm (greater than 1 · 9mm and less than 2.9mm). The terminal 20 is faced upward by inserting the glass portion 20A into the mounting hole 2D from the lower side. Side, with the mounting portion 20B abutting the circumference of the mounting hole 12D, the mounting portion 20B is fused to the mounting hole 12D of the end cover 12B and fixed to the end cover 12B. Here, if the pressure in the closed container 12 is set to an intermediate pressure described later, when the thickness of the mounting portion 20B of the terminal 20 is made thinner, it is lower than

550345 V. Description of the invention (40) When the thickness is 1.9mm, its high-pressure (medium-pressure) strength (pressure-resistant performance) corresponding to the refrigerant gas in the closed container 12 will be insufficient, and the mounting portion 2 B itself will Cracked. On the other hand, when the thickness of the mounting portion 20B is more than 2.9 mm, the test result is that it will adversely affect the glass portion 20 A because more heat is required when it is welded to the sealed container 304. In the present invention, in order to solve this problem, the thickness of the mounting portion 20 B of the terminal 20 is set to 2.4 ± 0.5 mm, thereby ensuring the pressure resistance performance of the terminal 20 and suppressing the welding and fixing required. Increase in heat. In addition, the end cap 12 A is affected by the high pressure (medium pressure) in the closed container 12, which causes the welded portion with the terminal 20 to be deformed in a direction that bulges outward. Fig. 22 shows the result of the amount of deformation of the end cap 1 2 A actually measured by area. In the figure, the amount of deformation in the area shown by Z 1 is 0.05 // m, the amount of deformation in the area shown by 21 is 0.2 // m, and the maximum deformation in the area shown by Z 3 is 0 · 2 5 // m. This is the result that the rigidity of the end cap 1 2 A near the terminal 20 is increased by the stepped portion 1 2 C. Compared with the previously described deformation ratio of the end cap, this value is a minimum value. In addition, by fixing the terminal 20 at the center of the end cap 12A, which is slightly bowl-shaped, and forming an end portion 12C around it, the amount of deformation itself can be evenly distributed to be concentric with the terminal 20 as the center. Round. With this, the present invention can reduce the amount of deformation of the end cap 1 2 A caused by the internal pressure of the closed container 12 under the condition that the CO helium gas is compressed into a refrigerant and the pressure inside the closed container 12 becomes high, thereby achieving The purpose of improving pressure resistance. In addition, the deformation of the end cap 1 2 A of the welding portion of the terminal 20 caused by the internal pressure of the closed container 12 can be uniformized, and the dissolution caused by uneven deformation can be avoided.

313808.pid Page 51 550345 V. Description of the invention (41) Cracking and peeling of the joint part to further improve its pressure resistance. On the other hand, the electric component 丨 4 is composed of a stator 2 2 that is mounted in a ring shape along the inner peripheral surface of the upper space of the closed container 丨 2; 4 formation. The rotor 24 is fixed to a rotating shaft 16 extending in the vertical direction through the center. The stator 2 2 includes a laminated body 2 β laminated with a circular electromagnetic steel plate; and a stator coil 2 8 (FIG. 6) wound around the teeth of the laminated body 26 in a straight-winding manner. 'The rotor 24 is formed of the laminated body 30 of the electromagnetic steel plate similarly to the stator 22', and a permanent magnet is inserted into the laminated body 30. "The first rotary compression module 32 and the second rotary compression module An intermediate partition plate 3 6 is sandwiched between 3 and 4. That is, the first rotary compression module 32 and the second rotary compression module 34 are made of; the intermediate partition plate 3 6; and are arranged on the intermediate partition plate 3 6 Up and down compression cylinders 3 8 (second compression cylinder), compression cylinder 4 0 (first compression &); compression chambers 38α (first 15) in the upper and lower compression cylinders 38, 40 The phase difference within 0 Α is 180 °, and is fitted to the upper eccentric portion 42 (second eccentric portion) and the lower eccentric portion 44 (first eccentric portion) provided on the rotation axis i 6 for eccentric rotation. 4 6 (the second roller), the lower roller 4 8 (the first roller) are in contact with the upper and lower rollers 4 6 and 4 and the upper and lower compression cylinders 3 8 and 4 are individually divided into a low pressure chamber side and a high pressure. The upper and lower fins 5 on the side (the black wing is shown in black); and the upper opening surface of the upper compression cylinder M and the lower opening surface of the lower compression cylinder 4 〇, which also serve as a bearing for the rotating shaft. The upper support member 54 and the lower support member are used as support members. The upper compression cylinder 38 is formed with an edge portion from the compression chamber 38A.

31380S.iDtd

550345 —— 'Mingmingyaner Ming (42) ~~ tilt AL —'— I #, the suction hole 1 6 1 rises, and the discharge hole 184 is inclined at the edge of the phase f, and the Qi [: also from the compression chamber 38A The fins are provided with wings 50 as shown in FIG. Between this exit hole and the suction hole 161, a suction is formed from the edge of the plant contraction chamber 40A. In the lower compression rainbow 40, the suction is also taken from the side of the compression chamber 40A on the opposite side. The holes 162 are the same (not shown), and the discharge hole and the suction hole 彖 f are inclined to form a discharge hole fin. Between the holes 1 6 2 there is the other aspect mentioned above, in the upper support member ^ the discharge path 39, and in the lower support member = knife to form the suction passage 58 and the Zhu 60 and the mouth soil outlet 4 In this case The suction holes are respectively formed corresponding to the suction holes 16 and 162, and the suction passages 58 and 60 are compressed by the compression chambers f in the compression chambers 38 and 40 below. These suction holes are respectively connected to the discharge passage 39. , 4 1 are connected by the aforementioned suction u 40A. In addition, corresponding to the example), the compression chambers 38A, 40A corresponding to the inside of the compression cylinder 40 and 40A are shown through the suction holes, and the upper and lower compression cylinders are at the upper support member 54 and lower. Concave, spit out the muffler chamber 62, ", and the other part is formed with a mouth closed by the cover. Also, the upper cover is blocked by 62 and 64, and the lower cover is closed by the output 68. At the time, a bearing 54A is formed on the upper support 2 ^ as a cover body, and in the center of the inner surface of the bearing 2 W, love 122. In addition, in the center of the lower support member 56 there is a uniform bushing 5 6A. The lower surface of the lower support member 56 (which has a bearing with the lower compression mechanism f) forms a flat surface, and the inner surface of the bearing 56A is also the same as the surface on the opposite side.

:] 3SOS.pid is cylindrically shaped. Page 53 550345 Description of the invention (43) 1 2 3 is provided by the following with excellent sliding: Rotary shaft 1 6 Series through the bearings 54A and the lower support of these bushing building members 54 Bushing 1 2 3. These bushings 1 2 2 are made of a material of high resistance and wear resistance 1 2 2 and 1 2 3 and are held on the upper support member 5 6 by a bearing 5 6 A. Renli: HI " The cover 68 is made of a circular steel plate having a circular shape, and the working surface with the lower branch member 56 is processed into a flat surface with a flatness lower than 0.1 mm by means of tools and materials. In the lower part, the main bolts 129 are arranged concentrically around the bearing 5 4 a around the bearing 5 4 a as a towel ^, and 〇 丄 Hirata 矜 b4A as the center, and the lower part is fixed to the lower plug through The discharge passage 41 communicates with the lower opening of the discharge muffler chamber 64 which communicates with the pressure of the lower compression cylinder 40 = of the first compression assembly 32 to 40A. The front end of the main bolt 129 ... is screwed to the upper support member 54. Lower cover = 68 = The peripheral edge of the bearing 56 of the lower supporting member 56 protrudes inward from the inner surface of the bearing 56. The lower end face of this car lining 1 23 (the end opposite to the lower compression cylinder 40) can be covered by the lower cover 68. Keep 'to avoid falling off (Figure 9). This eliminates the need to form the bushing 1 23 at the lower end portion of the bearing 5 "of the lower support member 56 to prevent falling off, thereby achieving the purpose of simplifying the shape of the lower support member and reducing production costs. In addition, Fig. 10 shows that the upper β 6 of the lower support member > the lower β ' Here, the lower support member 56 is composed of an iron-based sintered material (a cast can also be used), and the surface (lower side) on which the lower cover 68 is mounted is processed to a flatness of less than 0.1 mm after the application Treat with steam. Due to this radon treatment, iron oxide is formed on the surface on the side where the lower cover 68 is attached / sintered.

313808.ptd Page 54 550345

The hole inside the material is closed to improve its tightness. Therefore, it is not necessary to interpose a washer between 68 and the lower supporting hibiscus strain μa [mouth 'between the lower casing and the twist member 56. In addition, the electric component 14 side of the blowout strike 66 in the discharge muffler chamber 64 and the closed container 12 is communicated through a communication path 63 that passes through a hole in the upper two partition plate 36 (FIG. 4) 8 1 or The middle coiled shape of the μμ1 is 1 g 1 2 2 5 5 The middle discharge pipe 1 2 1 points to the gap between the fixed stator coils 2 8 2 8 of the stator 22 of the stator 28 of the electric assembly 14 (Figure 6). β In addition, the upper cover 66 is closed by the discharge passage 39 and communicates with the compression chamber 38A inside the upper compression cylinder 38 of the second rotary compression unit 34 through the discharge passage 39. Openings), and the inside of the sealed container 12 is divided into a discharge muffler chamber 62 and an electric component 4 side. As shown in FIG. 11, the upper cover 66 has a thickness of more than 2 mm and less than 10 mm (preferably 6 mm in the known example). The upper cover 66 is formed with a bearing 5 4 that can penetrate the upper branch member 5 4. A hole is composed of a substantially circular circular steel plate, and a corrugated washer is placed between the upper support member 54 and the washer 12 through the washer so that the peripheral portion is supported by four main bolts 78. ··· It is fixed to the upper support member 54 from above. The front end of the main bolt 7 8 ··· is screwed to the lower support member. Here, when the thickness of the upper cover 66 is less than 2 mm and a test is performed, there is a danger that the internal pressure of the anechoic chamber 62 may be deformed due to discharge. On the other hand, if the thickness of the upper casing 66 is made greater than 10 mm, the upper surface will be close to the stator 2 2 (stator coil 2 8), and there is a concern of insulation. In the present invention, the thickness of the upper casing 66 is set in the above range to withstand

3] Lion. Pid page 55 550345 V. Description of the invention (45) The inside of the sealed container 12 is shrunk by 10 itself. In addition, the 0-ring 126 (side seal is provided to prevent air leakage, and there is no need to fix the valve in the bearing 62 to open and close the valve. Ά The pressure of the muffler chamber 62 reaches the rotary pressure ^ b The inner peripheral end face of the insulation 4 cover 66 and the outer portion of the bearing 54A between the insulation member 14 and the electric component 14 (see FIG. 2). Because the bearing is produced by the O-ring 126, the inner peripheral end surface of the upper casing 66 is completely sealed, and the volume of 62 that can spit out the muffler chamber is not only enlarged, but it is the same as the known method. The inside edge of the cover 66 spit A. Here, 1 2 7 in FIG. 11 is at the outlet of 34 of the second rotary compression unit that discharges the muffler chamber 39 outlet passage 39, and it is here (the lower compression cylinder 40 also works. Inhalation 1 is general, With the front end of Hiragaki in a vertical state, if the compression cylinder 38 is compressed with the compression red 38, on the other hand, the edge of the end chamber 3 8 A with a mountain-shaped front end is the same. Fig. 30 illustrates the above-mentioned upper compression cylinder 38. The processing side of the suction hole 1 6 1 and the discharge hole 1 84 1 6 1 is as shown in Fig. 29. The end mill ML 1 Leaning vertically against the compression cylinder 38, while keeping the arrow pointing diagonally to the lower left in Fig. 29, it is moved to the compression chamber 38A in an oblique direction, thereby forming a gap. When the discharge hole 184 is formed, as shown in FIG. 30, a half of the milling cutter ML2 is vertically pressed against the compression of the compression cylinder 38, thereby forming a notch inclined to the compression cylinder 38. Machining suction holes 1 6 1 and discharge holes 1 8 4 can form inclined suction holes 1 6 1 and discharge holes in the compression cylinder 3 8 in a state where the end mill ML 1 ′ ML 2 is perpendicular to the compression cylinder 3 8. 1 8 4 Therefore, other screw holes Η1 (holes that can penetrate the main bolt 7 8) or punching holes η 2 shown in Figure 15 can be added.

313808.ptd Page 56 550345 V. Description of the invention (46) In the same step, the suction hole 16 1 or the discharge hole 1 8 4 is formed, and the purpose of reducing the production cost is to reduce the number of steps. In particular, in the case of the suction hole 1 6 1, by the related processing, even if the end mill having a flat end ML 1 is used, the edge portion of the suction passage 5 8 side of the suction hole 1 6 1 is formed as follows. The semi-circular arc shape shown in FIG. 15 can reduce the path resistance of the communication portion of the suction hole 16 and the suction passage 5 8 compared with the conventional straight edge portion, and reduce the situation of air flow disturbance to achieve effective Operation. Next, in the intermediate partition plate 36 that closes the upper opening surface of the upper compression cylinder 38 and the upper opening surface of the lower compression cylinder 40, at a position corresponding to the suction side in the upper compression cylinder 38, As shown in FIG. 13 and FIG. 14, through holes are used to connect the outer peripheral surface and the inner peripheral surface to form a fuel supply passage 1 3 1 from the outer peripheral surface to the inner peripheral surface, and press the hole. A seal (blind pin) 1 2 on the outer peripheral surface side of the through hole 1 3 1 is inserted to seal the opening on the outer peripheral surface side. In addition, a communication hole (longitudinal hole) 133 extending on the upper side is formed in the middle of the through hole 131. On the other hand, the suction hole 1 6 1 (suction side) of the upper compression cylinder 38 is provided with a communication hole 1 3 4 for injection that communicates with the communication hole 1 3 3 of the intermediate partition plate 36. In addition, as shown in FIG. 7, an oil hole 8 0 is formed in the rotation shaft 16 in a direction perpendicular to the center of the shaft; and a horizontal oil supply hole 8 2, 8 4 communicating with the oil hole 80. (Also formed on the upper and lower eccentric portions 4 2 and 4 4 of the rotation shaft 16), and the opening on the inner peripheral surface side of the through hole 1 3 1 of the intermediate partition plate 36 is through these oil supply holes 8 2, 8 4 communicates with the oil hole 80. As described below, the medium does not contain oil due to the formation of medium pressure in the closed container 12.

? 138〇8.ptd Page 57 550345 V. Description of the invention (47) It is easy to supply into the upper compression cylinder 38 forming the high pressure in the second stage, but with the related structure, the intermediate partition plate can be removed from the closed container 丨 2 The oil tank at the inner bottom is raised to raise the oil hole 80, and the oil flowing out from the oil supply holes 8 2, 8 4 flows into the through hole 1 3 1 of the intermediate partition plate 3 6 and from the communication hole 1 3 3, 1 3 4 is supplied to the suction side of the upper compression cylinder 38 (suction hole i 6 〇. L in FIG. 16 shows pressure fluctuations on the suction side in the upper compression cylinder 38, and P 1 in the figure shows the middle partition The pressure on the inner peripheral surface of the plate 36. In this figure, as shown by L1, the pressure (suction pressure) on the suction side of the upper compression cylinder 38 is lower than the middle partition due to the suction pressure loss during the suction process. The pressure on the inner peripheral surface side of the plate 36. During this period, the oil is injected from the upper compression cylinder _ communication hole 1 34 into the upper compression from the rotary shaft (6 oil hole 80 through the factory hole 131 and the communication hole 133). To complete the oil supply in the cylinder 38. As mentioned above, the upper and lower compression members of the cylinder 3 support members 54, 5 6 and the upper and lower middle plate 36, the upper and lower bolt 78 · ·· and the main screw was picked up and the '68 series were respectively connected by the four main screw systems with the upper and lower support members 54 and 56 (Figure 4). The auxiliary screw 136 outside the 箄 and _ λ 136, 136 and 5 are inserted, and the first 4 ^ into the inspection \ 136, 丨 36 are supported by the upper support structure. In addition, the auxiliary screw: = / / near the support member 56. In the vicinity of 70, so, by丨 Since the guide groove structure 18 is integrated after the aforementioned fins 50, not only can = Π = = bolts 1 3 6 and the rotary compressor reach the second rotational pressure setting moment of 12 MPaG to avoid the discharge pressure The air leakage between the components 5 and 4 is the same as that of the upper compressor 38 and the upper branch k of ± 4, which can ensure the corresponding

313 Coffee U Page 58 550345 V. Description of the Invention (48) --- Seal-up. In addition, since the vicinity of the groove of the fin 50 is fixed by the auxiliary plunger 136: it is possible to prevent C leakage (upper support member 54 and upper) of the back pressure (interrogation pressure) applied to the fin 50 described later. Air leakage between the compression cylinders 38 and 8) On the other hand, in the upper compression cylinder 38, a guide groove 70 for accommodating the above-mentioned fins 50 is formed; and a guide groove 70 located outside the guide groove 70 is used to accommodate a spring member The accommodating portion 70A of the used spring 76 is opened toward the guide groove 70 side and the closed container 12 (the container main body 12A) (FIG. 8). The aforementioned spring 76 abuts on the outer end portion of the fin 50 to constantly urge the fin 50 to the roller 46 side. A metal plunger 1 37 is provided in the storage portion 70 A on the side of the closed container 12 of the spring 76, and has a function of preventing the spring 76 from falling off. A back pressure chamber (not shown) is communicated in the guide groove 70. In the fin 50, the discharge pressure (high pressure) of the second rotary compression unit 34 is applied to the back pressure chamber, so that the plunger 1 3 7 The high pressure is formed on the 7 6 side of the spring, and the medium pressure is formed on the 12 side of the closed container. At this time, the external dimensions of the 'plunger 1 37 are smaller than the internal dimensions of the receiving portion 70A, and the plunger 1 37 is inserted into the receiving portion 70 with a clearance fit. In addition, a zero ring is installed on the peripheral surface of the plug 1 37 to seal the plunger 1 37 and the inner surface of the receiving portion 70 A. The outer end of the upper compression cylinder 38, that is, the space between the outer end of the receiving section 70 A and the container body 12 A of the closed container 12 is set to be less than 0 ring 13 8 to close the plunger 1 37. The distance to the end of the container 12 side. In the back pressure chamber (not shown), which is in communication with the guide groove 70 of the airfoil 50, a back pressure is applied. The back pressure is the south pressure formed by the discharge pressure of the second rotary compression unit 34. The impulse 7 6 side of the column base 137 becomes high pressure, and the container is closed.

3138U8.p: d p. 59 550345 V. Description of the invention (49) 1 2 sides form a towel pressure. By setting the relationship of the relevant dimensions, as in the case where the plunger 1 3 7 is pressed into and fixed in the housing 咅 P 70A, deformation of the upper compression cylinder 38 can be avoided, and the sealability with the upper support member 54 can be reduced, and Deterioration such as performance deterioration occurs. In addition, even if the gap is fitted, the distance between the upper compression cylinder 38 and the closed container 12 is set to less than 0 ring 1 38 to the end of the closed container 12 on the plunger 1 37. Distance, therefore, even when the plunger 1 3 7 is moved in the direction pushed out from the receiving portion 70A by the high pressure (back pressure of the fins 50) on the spring 7 6 side, the 0 ring 1 38 can still abut At the time point when the container 12 is closed and the movement is blocked, the container 12 is located and sealed in the receiving portion 70 A without causing any problem to the function of the plunger 1 38. However, in order to make the cross-sectional area of the cross-sectional shape larger than that of the rotating shaft 90, the connecting portion 90, which is integral with the rotating shaft 16 and has a 180 degree phase difference, is connected to each other. 16 has a circular cross-section and has rigidity. As shown in FIG. 17, it is made into a non-circular shape called olive blue sphere, and is orthogonal to the eccentric directions of the upper and lower eccentric portions 4 2 and 4 4. The thickness is made larger than the thickness in the eccentric direction of the upper and lower eccentric portions 4 2 and 4 4 provided on the rotation axis 16 (hatched portions in the figure). Thereby, the cross-sectional area of the connecting portion 90 of the upper and lower eccentric cymbals P 42, 4 4 provided to be connected to the rotating shaft 16-body can be increased, and the secondary moment and strength (rigidity) of the cross section can be increased, and Improve the financial longevity and reliability of the rotating shaft 16. In particular, as in the example, when two-stage compression and use of a high-pressure refrigerant is performed, the load applied to the rotating shaft 16 is increased due to an excessively large pressure difference between high and low pressures. Sectional area and its strength (rigid

313S08.ptd Page 60 550345 V. Description of the invention (50)), the elastic deformation of the rotating shaft 16 can be avoided. Further, in the case of the present invention, the center of the upper eccentric portion 4 2 is set to 0 1, the radius of the eccentric portion is set to R 1, and the center of the lower eccentric portion 4 4 is set to 0 2. When the radius of the eccentric portion 4 is R 3, the surface of the connecting portion 9 0 on the eccentric direction side of the upper eccentric portion (the first eccentric portion) 4 2 (the left detection surface of the shaded part P in FIG. 17) An arc shape having a center of 0 2 is formed, and a surface of the connecting portion 90 of the eccentric portion side of the eccentric portion 44 (the right side of the shaded portion in FIG. 17) has an arc shape having a center of 0 1. In addition, if the arc radius of the surface of the connecting portion 90 on the eccentric direction side of the upper eccentric portion 42 is set to R4, the radius R4 can be expanded up to the radius R3 of the lower eccentric portion 44. The radius of the arc of the surface of the connecting portion 90 on the eccentric direction side of the eccentric portion 44 is set to R 2, and the radius R 2 can be expanded up to the radius R 1 of the upper eccentric portion 42. In this way, by setting the arc center of the surface of the connecting portion 9 0 on the eccentric direction side of the upper eccentric portion 4 2 to 0, the circle of the surface of the connecting portion 9 0 on the eccentric direction side of the lower eccentric portion 4 4 is set. The arc center is set to 0. When the rotary shaft 16 is clamped to a cutting machine, the upper and lower eccentric portions 4 2, 4 4 and the connecting portion 90 of the rotary shaft 16 can be cut. 2 After machining, only the radius is changed or the radius is not changed and the eccentric portion 4 of the connection portion 90 is processed on the side of the eccentric direction side (the right side of FIG. 17), and then the clamping position is changed to process the connection杳 [5 9 0 Eccentric portion 4 2 The surface on the eccentric direction side (the left side surface in FIG. 17)], and change the radius, or perform operations such as machining the eccentric portion 4 4 without changing the radius. As a result, the number of re-clamping of the rotary shaft 16 can be reduced, and the number of processing steps can be reduced to improve productivity.

313808. plcl page 61 550345 V. Description of the invention (51) · ~ In addition, the refrigerant used in this case is based on the consideration of the nature of the place to be maintained and the poisonous toxicants. Monoxide is reversed (C0 2), and as the lubricating oil, existing oils such as mineral oil (Mlneral 011), benzene-based oil, oil oil, and fatty oil are used. On the other hand, the curved sides of the container body 12A of the closed container 12 and the suction passage 60 of the upper support member 54 and the lower support member 56 and the upper side of the muffler chamber 62 and the upper cover 66 (approximately) Electric, the position of the lower end of the U) corresponding to the respective positions of the sleeves I4, 142, 143, and 144 with the same shape. The sleeves 14 and 142 are adjacent to each other, and the sleeve 143 is located on the sleeve. The tube 141 is roughly diagonal. In addition, 'the sleeve 144 is located at a position which is slightly offset from the sleeve η 丨 by 90 degrees .... Here', the above-mentioned sleeves 1 4 1 to 1 4 4 will be described using FIG. 2 8 (FIG. The mounting structure of the sleeve 14 2) is shown in the curved surface of the container body m of the closed container 12 Circular through-holes 1 9 0 (four places in this case) are formed at the positions of the mounting sleeves i 4 丨 to i 4 4. In addition, each through-hole 1 90 is outside the container body 1 2 A. A circular recessed portion 丨 g 2 is formed around the side. The recessed portion 丨 g 2 has a through-hole 19 on the bottom surface, forming a container body 1 2 A internally corresponding to the sealed container 丨 2 and parallel to the wiring. Surface 1 9 3. On the other hand, at the end of the sealed container 12 on the sleeve 142 (the same is true of other sleeves), an insertion portion 1 94 having a diameter smaller than the outer diameter is formed around the insertion portion 1 9 4. A flat abutment portion 19 6 ′ that is orthogonal to the axial direction of the sleeve 1 42 is formed, and around the abutment portion 1 96, a protruding portion 1 97 for welding is formed to protrude.

313808.ptd Page 62 550345 V. Description of the invention (52) In addition, in Fig. 28, the protruding portion 1 9 7 is enlarged for convenience of explanation, but the actual size of the protrusion is extremely small. In addition, the inner diameter of the aforementioned recessed portion 1 g 2 is a size that can be inserted into the sleeve 142 with the smallest gap, and the outer diameter of the insertion portion 194 is a size that can be inserted into the through-hole with the smallest gap. In addition, when fixing the casing 1 42 to the container body 12 people, the insertion part 1 9 4 of the casing 1 4 2 is broadcasted into the through hole 190 of the container body 1 2 A, and then the casing 1 4 2 The abutting portion 196 is partially buried in the recessed portion 192. In this way, the abutting portion 196 (actually a protruding portion) of the cover 1 42 can abut the bottom flat surface 193 of the recessed portion 1 g 2. At this time, the flat surface 193 is parallel to the connection of the inner diameter of the container body 12A, and the contact portion 196 is perpendicular to the axial direction of the sleeve 142. ^ = At the time when the contact portion 196 abuts the flat surface 193, The sleeve 1 42 will form a right angle with the inner diameter of the second body 12A (located in a state extending from the center of the container body 2a, in a radial direction, on a straight line and protruding from the outside). In particular, since the outside of the abutment portion 1 96 of the casing 1 4 2 is formed by the inside of the depression: 2 ... *, Jie Yi ensures that the casing is two = 7, & limb Λ /, borrowing The above-mentioned protrusion and extension sleeve 142 is melted by the welding device (not shown) and is welded to the container body 12A. With this structure, it is not necessary to use a nuclear gp can be placed under the seat # t. 14 Bu 1 43 and 144 are the same) Straight angle corresponding to the inner diameter of the body of Isaiah i 2 A. J) At the same time, the refrigerant gas is introduced into the upper pressure 141 according to the above Anmenxi clothes, and the connection is used for the tube. 2 Refrigerant tube.)-^ Refrigerant introduction tube 92 in the cylinder 38 (suction path of compressed compressed rainbow 3 8 on the refrigerant-binocular. One end of the far refrigerant input tube 92 is connected to the upper part of the closed container 12 (so , =. F Refrigerant introduction f 92 Pass through the tight / order medium introduction pipe 9 2 will be located in the closed container 12

550345 V. Description of the invention (53) outside) and reach the officer 1 4 4 while the other ^ Β, τ -u, ^ μ force ^ is inserted and connected inside the camp 1 4 4 and inside the closed container 12 Connected. In the reverse direction, it is shown in FIG. 144. In the sleeve 142, insert a refrigerant introduction pipe 94 for connecting the refrigerant gas to the upper compression cylinder 40 (婢 通: the two ends of the medium introduction pipe 94 and the pressure The suction passage 60 is connected. The other end of the cold tomb burial man; ^ η, ~ ¥¥ 入 官 94 is connected to the lower end of the pressure storage boundary 1 4.6. In addition, when it is pressed in the opposite direction, it is set on M3. A refrigerant discharge valve 96 is inserted and connected to the refrigerant discharge pipe 96, and the other end of the refrigerant discharge pipe 96 is connected to the discharge muffler chamber. The pressure accumulator 1 4 6 is a tank for gas-liquid separation of the suction refrigerant, and is connected to the pressure accumulator. The brackets 1 4 8 on the side are mounted on the brackets on the side of the sealed container which are welded and fixed to the upper side of the container body 12 A of the sealed container 12 and are located above the sleeves 1 41 and 142. The bracket 148 The two sides of the lower end are fixed to the bracket 1 4 7 by screws 1 8 1, extending from the bracket 1 4 7 to the upper side, and the straps 1 mounted on both sides of the upper end by screws 1 8 3 8 2. Hold the roughly central part of the accumulator 1 4 6 in the vertical direction. At this time, the accumulator 1 4 8 can also be fixed to the bracket 1 4 8 by welding. In this state, the pressure accumulator 1 4 6 is arranged close to the side of the sealed container 12. As described above, the pressure accumulator 1 4 6 is mounted by the brackets 1 47 and 1 48. Since the main body 1 2 A of the closed container 12 is enlarged, when the capacity of the pressure accumulator 1 4 6 is expanded and the upper and lower dimensions are increased, the bracket 1 4 7 is not changed, and only the bracket 1 4 8 is enlarged (changed). With the upper and lower dimensions, it can be kept at the approximate center of the pressure accumulator 1 46, and its lower end position can be raised. Therefore, it is not easy to interfere with the refrigerant introduction pipe 92 below.

313808, ptd page 64 550345 5. Description of the invention (54) In addition, when the bracket 1 4 7 is coated with the closed container 12, it will become a hook portion of a rack for manufacturing equipment. Composition, that is, no need to change the hanger. At the same time, when the capacity of the pressure accumulator 1 4 6 is changed, it is only necessary to change the bracket 1 4 8 and install the bracket 1 4 8 at the roughly central position (or the position of the center of gravity or the vicinity thereof). Not only can the pressure accumulator 1 4 6 be maintained in this position, but also the increase of noise caused by vibration can be avoided. On the other hand, as shown in FIG. 3, after the refrigerant introduction pipe 92 extends from the sleeve 141, in the embodiment, it rises after bending to the right, and the lower end of the pressure accumulator 1 4 6 drops to The position close to the refrigerant introduction pipe 92. Therefore, the refrigerant introduction pipe 9 4 lowered from the lower end of the pressure accumulator 1 4 6, as viewed from the sleeve 1 4 1, bypasses the left side opposite to the bending direction of the refrigerant introduction pipe 92 and reaches the sleeve 1 4 2 form configuration. In other words, the refrigerant introduction pipes 9 2, 9 which are connected to the suction passages 5 8 and 60 of the upper support member 38 and the lower support member 40, respectively, are viewed from the closed container 12 and are arranged along the horizontal plane. In the opposite direction (180 degrees opposite direction), it is configured in a curved form, so that the up and down size of the accumulator 1 4.6 can be enlarged and the volume can be increased, or the lower end of the accumulator can be lowered to approach the refrigerant introduction pipe 92. It will also not cause the refrigerant inlet pipes 9 2, 94 to interfere with each other. In addition, a flange portion 1 51 is formed around the outer surface of the sleeve 1 4 1, 1, 4 3, 1 4 4 and a screw groove 15 2 is formed around the outer surface of the sleeve 1 4 2. As shown in FIG. 21, the coupling portion 1 7 2 of the coupling 1 1 for piping connection is fastened to the flange portion 1 5 1 in a detachable manner, and the screw groove 1 5 2 can be Screwed connector for piping connection. In addition, the coupling portion 1 7 2 of the coupling portion 1 7 is a square that often retreats outward.

313S08.ptd Page 65 550345 V. Description of the invention (55) It is elastically pushed to the outside, and a flexible operation part 1 7 7 is arranged on the outside. In addition, by pushing the coupler 1 7 1 so that it is covered by the sleeve 1 4 1, the engaging portion 1 7 2 pushes away the operating portion 1 77 and retreats to the outside, and then engages the flange portion 1 5丨 the container body 12 2A side. In addition, by moving the operation portion 177 in a direction separated from the container body 12A, the engaging portion 17 2 is retreated to the outside, and the coupler 17 is released from the sleeve 1 4 1. The aforesaid noodle coupler 1 71 is installed at the front end of the pipe 174 of the compressed air generating device (not shown), and the connector 173 is also installed at the front end of the tube 1 76 of the compressed air production device. When the manufacturing step # of the rotary compressor 丨 〇 is completed, the aforementioned coupling 丨 7 丨 is fastened and connected to the sleeve II I41, 1, 3, and 144 ', and the connector 173 is screwed to the sleeve.管 丨 42. An air-tight test was carried out by applying a compressed milk of about 10 leaves 3 to the airtight container 12 by a pressurized air generating device. Port f =, species composition, because the coupler 176, Λ can be used; Γϊ 4 internal elements into an airtight test. Especially in New York, the sleeve 141 on one side is shaped like :: ⑷ '142, the tube 142 forms a screw groove 152, to avoid the situation where the connector m of the socket I73 on the other side, And: sleeve: two smaller than the size of the hour can also use the small space s, 4 2 than the distance between each sleeve 14 142. And the knife connects the piping Π4, 176 to, and the U figure is a Qa circuit diagram of the second embodiment of the present invention to which it is applied. The rotary compressor 10 of the embodiment is a refrigerant circuit of the refrigerant water supply device 153 of ji53. That is, it is used in the cooling of P% rotary compressor 1 〇 shown in Figure 18.

550345 V. Description of the invention (56)-~ The medium discharge pipe 9 6 is connected to the water heating gas, and the gas cooler 154 is provided at the inlet of the water supply / ^ 2 device 154. The slot. The water storage valve 1 56 of the piping system exposed from the gas cooler 1 54 reaches the inlet of the evaporator i 57. The second is the expansion of the clothes. 甘 、 音 # 洛 发 器 1 5 7 of the The exit system is located at & media ¥ inlet 94. In addition, the defrosting tube 1 5 8 connected to the frost circuit, which is not shown in the figure, is removed from the cold heading A — ° and borrowed * as a flow path control device. Refrigerant discharge pipe 96 is connected "to the gas-cooled omission pressure accumulator 146. 4 > 'The following operation is explained by the above structure in Fig. 18. This is to close the solenoid valve. By the terminal 20 and the unillustrated configuration ^ When the disc is in operation, after the stator coil is energized, the electric component 14 can be started and the rotating component can be rotated. The rotating component can be precisely rotated to fit into the rotor 24 integrated with the rotating shaft 丨 6. The upper and lower rollers 46, 44 of 44, 44 48 can be rotated in the upper and lower compression cylinders 38 and the center of the heart. In this way, it is biased in 40, through the refrigerant introduction pipe 94 and the suction passage 60 formed in the lower part, and is sucked into the text through the suction hole 162, and the low pressure of the member 56 is The first is the suction pressure (LP: 4MpaG). The refrigerant pressure is both 48 and the action of the flaps is compressed to a medium pressure (Hebei 1: 8 liver & 6), and 廿 " > 1, 40. The passage 41 ′ presses the discharge muffler chamber 64 of the lower support member 56 through the communication path to discharge the pipe 121 In the closed container 12. The middle discharge tube 121 / ί Because the middle discharge tube 121 is directed toward the winding 2 2 of the electric parts 1 4 wound on the upper side and between the adjacent stator coils 2 8 and 2 8 Between

3l3_.ptd

550345 V. Description of the invention (57). Therefore, the refrigerant gas with a relatively low temperature can be actively supplied to the electric component 14 and the temperature rise of the electric component 14 can be suppressed. At the same time, the inside of the closed container 12 can be made to a medium pressure (MP1). In addition, the medium-pressure refrigerant gas in the closed container 12 is discharged from the sleeve 1 44 (the middle discharge pressure is the aforementioned MP 1) through a suction passage 5 8 formed in the refrigerant introduction pipe 92 and the upper support member 54. And is sucked into the low-pressure chamber side of the upper compression cylinder 38 through the suction hole 161 (the second stage suction pressure MP2). The sucked medium-pressure refrigerant gas is compressed in the second stage by the operation of the rollers 46 and the fins 50 to form a high-temperature and high-pressure refrigerant gas (the discharge pressure in the second stage is HP: 12MpaG). The chamber side passes through the discharge hole 184 and the discharge passage 39, and flows into the gas cooler 154 through the discharge silencing chamber 6 2 formed in the upper support member 54, and the refrigerant discharge pipe 9 6. At this time, the temperature of the refrigerant rises to about + 100 ° C. The high-temperature and high-pressure refrigerant gas is radiated in the gas cooler 154, and the water in the water storage tank is heated to generate warm water of about + 90 ° C. . On the other hand, the refrigerant itself is cooled in the gas cooler 154 and escapes from the gas cooler 154. Then, after reducing the pressure through the expansion valve 1 56, it is repeatedly flowed into the evaporator 1 5 7 and evaporated (at this time, heat is absorbed from the surroundings), and then passes through the pressure accumulator 1 4 6 (shown in FIG. 18). ) Circulation sucked into the first rotary compression unit 32 from the refrigerant introduction pipe 94. In particular, in an environment with a low outside temperature, frosting may occur in the evaporator 157 by such heating operation. At this time, the solenoid valve 1 59 is opened, and the defrost operation of the evaporator 1 5 7 is performed with the expansion valve fully opened. Thus, the medium-pressure refrigerant in the closed container 12 (including a small amount of high-pressure refrigerant discharged from the second rotary compression assembly 34) will reach the gas cooler through the defrost tube 1 5 8

31380S.ptd page 68 550345 V. Description of the invention (58) 1 5 4 The temperature of the refrigerant is about +50 to + 60 ° C, and it forms a form that does not dissipate heat in the gas cooler 154, but absorbs heat from the refrigerant at the beginning. Then, the refrigerant escaping from the gas cooler 15 4 passes through the expansion valve 15 6 and reaches the evaporator 15 7. That is, a slightly medium-temperature, relatively high-temperature refrigerant is directly supplied to the evaporator 15 7 without being decompressed, whereby the evaporator 15 7 is heated to perform defrosting. At this time, the heat of the warm water is transferred from the gas cooler 154 to the evaporator 1 5 7 through the refrigerant. Here, when the high-pressure refrigerant discharged from the second rotary compression unit 34 is supplied to the evaporator 1 5 7 without decompression, and the defrosting is performed, the expansion valve 1 5 6 is fully opened, so that the first rotary compression unit 3 2 The suction pressure increases, and the discharge pressure (medium pressure) of the first rotary compression unit 32 becomes higher. This refrigerant is discharged through the second rotary compression unit 34, but the full opening of the expansion valve 1 56 makes the discharge pressure of the second rotary compression unit 34 consistent with the suction pressure of the first rotary compression unit 32. A pressure reversal phenomenon occurs under the discharge (high pressure) and suction (medium pressure) of the second rotary compression unit 34. However, as described above, since the medium-pressure refrigerant gas discharged from the first rotary compression unit 32 is taken out from the closed container 12 and then the evaporator 1 5 7 is defrosted, this kind of high pressure and medium pressure can be prevented. Reversal phenomenon. Here, Fig. 33 illustrates another refrigerant circuit of the water supply device 153 to which the present invention is applied. In this figure, those who have the same symbols as those in Figure 18 have the same or equivalent roles. In this case, in addition to the refrigerant circuit shown in FIG. 18, another defrosting tube 1 is provided, which can be connected to the refrigerant discharge pipe 9 6 and the expansion valve 1 5 6 and the evaporator 1 5 7. 5 8 A, and in this defrost tube

550345 V. Description of the invention (59) 158A is provided with another solenoid valve 159A. According to this configuration, since both of the solenoid valves 159 and 159 are closed during the heating operation, the operation is the same as described above. On the other hand, when the evaporator 15 7 is defrosted, both solenoid valves 159 and i59A are opened. In this way, the medium-pressure refrigerant discharged from the closed container 12 and the second rotary compression assembly 34 & the less-southern pressure refrigerant will flow through the defrost tubes 1 5 8 and 1 5 8 A to expand The valve 156 is on the downstream side and flows directly into the evaporator 57 without pressure reduction. With this structure, the pressure in the second rotary compression unit 34 can be prevented from being reversed. In addition, FIG. 34 illustrates another refrigerant circuit of the water supply device 153. In this case, those with the same symbol as Fig. 18 have the same or equivalent effect. In this case, the defrosting tube 158 in Fig. 18 is not connected to the inlet of the gas cooler 154, but is connected to the piping between the expansion valve i 5 6 and the evaporation valve i 5 7. With this configuration, when the solenoid valve ^ 59 is opened, as in Fig. 33, the medium-pressure refrigerant in the closed container 12 will flow to the downstream side of the expansion 1 56 without decompression. Directly flows into the evaporator 157. In this way, in addition to the fact that the pressure of the second rotation pressure reduction element 34 generated during the defrosting does not reverse, compared with Fig. 33, it has the advantage of reducing the number of electromagnetic switches. In addition, in the above embodiment, although the plunger 13 7 is inserted into the accommodating portion 70 A in a gap-fitting manner, when the plunger 137 is pressed into the accommodating portion 70A: as shown in FIG. If an escape portion 5 4C recessed in a direction separated from the upper compression cylinder 38 is formed on the upper support member 54 of a portion corresponding to the plunger 1 3 7, the escape portion 54C can absorb the pressure-into column by the escape portion 54C. Congestion

313808.ptd Page 70 550345

5. Description of the Invention ⑽) The deformation of the shrinkable cylinder 38 is prevented to prevent the deterioration of the sealing performance. In addition, in the embodiment, since the rotary compressor is a vertical type, the sleeves 1 4 1 and 1 4 2 are arranged adjacent to each other above and below, but two sets of rotary compressors are also generally included. The pipes are connected side by side. In the case of, the refrigerant introduction pipes 9 2 and 9 4 are arranged in opposite directions such as above and below, or η to the left. In addition, in the above embodiment, the medium-pressure refrigerant gas contracted by the first rotary compression unit 32 is discharged into the closed container 12, but it is not limited to one example, and the first rotary compression unit 3 may not be discharged. The refrigerant gas discharged from 2 is discharged out of the closed container 12 and directly flows into the refrigerant introduction pipe 92 and is sucked in by the second rotary compression unit 34. In addition, in the above embodiment, the second The refrigerant introduction pipe 92 of the rotary compression unit 34 and the refrigerant introduction pipe 94 of the first rotary compression unit 32 are arranged adjacent to each other at the upper and lower sides. However, the invention is not limited to this, and the refrigerant discharge pipe 96 of the second rotary compression unit 34 may be used. The refrigerant introduction pipe Z ^ connected to the first rotary compression assembly 32 is placed above and below. At this time, the refrigerant discharge pipe 96 and the refrigerant introduction pipe 4 are arranged from the closed container 12 in opposite directions from each other. Section; ^ Here, Fig. 26 shows the case of supporting structure 2 of another rotary compressor 10 according to the present invention, which is also formed on the upper supporting member 5 4 (the second bearing 54A, and the central portion). Long-bearing vehicle protruding from the direction of the electric component 14 尨 199 尨 Baya inside the bearing 54Α A cylindrical bushing 122 is provided. Behind the inner surface is between the square shaft 16 and the bearing 54A, and the bearing 122 is in contact with the rotating shaft 16 in a driven manner. Shaft Lining 1 22 /, High wear resistance that maintains good sliding properties even under insufficient conditions

Page 71 550345 V. Description of the invention (61) Made of carbon material On the other hand, the center of the lower support member 56 bears a 54A short bearing 56, but the inner surface of the bearing 56A == / a ratio of the bearing 56A The inner surface is lined with a freely sliding square W, and the shaft 16. At this point, the suspected rotating shaft 丨 6 is held on the upper branch by the bushing i 2 2 on the upper side of the rotary compression mechanism section 1 (upper side), and the side is 54A on the side of the upper side, and on the opposite side (lower) of the electric component 14 The bearing 5 6 A of the lower supporting member 56 is shown in the figure. The τ system ^ 疋 is kept in the 73 'wide groove in the operation of this rotary compressor. The rotating shaft 16 is connected to the lower supporting member 56. The bearing 56α rotates inside and below, but the rotational force of the lunar surface of the ith rotating compression element 32 in the first stage is lower than the medium pressure in the closed container 12, so that: Between the bearing 5 6 A and the rotating shaft 16 is not related to the problem of ice and Benin. 〆In terms of α mobility, the other two aspects, because the second rotary compression element 34 in the second paragraph is formed higher than the closed container. The high pressure in 1 2 makes it difficult for the oil to enter the rotating shaft 16 above the eccentric portion 42 at a pressure difference of 38. The sliding of the upper support member 54 into the bearing 54A while rotating on the sliding side of the shaft In its interior = 円 口 This does not cause the problem of sliding. "Lining can be ί: 56 minutes in the bearing, as above The purpose of reducing the cost of parts is achieved by eliminating the need to install wheel linings with slightly more expensive linings. By adding 1 = this, in the embodiment of FIG. 26, the vehicle lining 1 is provided in the bearing 54. 22 ', and the cost is reduced by not providing a bushing in the bearing 56A.

Page 72 550345 V. Description of the invention (62) minus' But it is also possible to provide a carbon pendant bushing 123 in the bearing 56Ar as shown in Fig. 27, and place it between the bearing 56A and the rotating car 16, and in Axis &Cheng; Cheng No. 5 and 8 are not set. According to this constitution, it can be made into a short bearing with a small pressure area, and it can maintain the sliding performance of the bearing 5 "with an increased load per unit area, while maintaining long-term performance, while eliminating friction. When the load applied to each unit area is relatively small and consumes 54A bushings, the cost is reduced. At this time, the inner diameter of the lower casing 68 is made smaller than the inner diameter of the lower support member 56 The lower cover 6 8 keeps the lower part of the bushing 1 2 3 from falling off. The hole ㈣ 123 is used to assist the screw 13 6 and is formed in the hole 1 8 6. In addition, Fig. 35 and Fig. 1 show the members. A different embodiment of the above-mentioned upper member 54. Fig. 35 shows a top view of the upper supporting member "at this time, and 186 in the figure is a hole for inserting the aforementioned main screw inspection 78, and is formed at 90 degrees intervals. There are four positions on the outside of the sleeve bearing 54A. In addition, U7 is inserted into the two outer sides mentioned above. In addition, the muffler chamber 62 in the embodiment is ordered by four sub-judgment chambers 62A, 62B '62C, 62D, and used to make these division chambers 62 to 8 to 6⑼. The narrow passages 62E ·· (three places) are connected in an in-line manner to each other. In other words, the division chambers 62A, 62B, 62B, 62c, 62c, and 62D are communicated through the path 62E, and there is no path between the cut chambers 62A and 62D. In addition, the division chambers 62A to 62D and the passageway 62E are arranged so as to surround the outside of the bearing 54A, and the division chambers 62A to 62d are arranged between the adjacent holes 186 '186, and the passageway 62E. 186 ...

313808.ptd Page 73 550345

Bearing 5 4 A side. In addition, the cutting chamber 62A is opened in the front, and the discharge path ^^^ 39 is stored so as to reach 62A at one end of the branch 62E. This ^ is hidden from the partition path 6 by the refrigerant path 188 in the path (the refrigerant flows out of this Qiu Wai>, the shape is open in the upper supporting member W cutting chamber 62D. The refrigerant ° 卩) is connected to the branch at the other end. ', I Road 1 8 8 series and the aforementioned refrigerant outlet pipe 9 6 are in communication with each other: ί 2ΕΛ can be configured: each divided room of the eight muffler chambers 62 _ _ 78 ^ Pe Valley knife brake chambers 62A to 62D are located on the main bolt 78, * space ', and the path β F Fu Shishi effectively uses the bearing 54A side of the main screw 78 ·, screw inspection 78. In this way, each of the spaces of the chamber 62 can be spaced apart from ^^ to 62 to form the passages 62e through which the silencers 62A to 62D are discharged and the narrow width is formed. 〇qfl- ^ ^ The medium is formed from the high-pressure chamber side of the upper compression cylinder 3 8 through the discharge passage m and is formed in the discharge silencing chamber 6 4 of the upper support member 5 4. The division officer 6 2 2 high pressure in the division chamber 62A The refrigerant gas flows from the splitter through the narrow passage 6 2 Ε and flows into the next split chamber 6 2 Β = = flows out from the split chamber 62B and enters the next two split chambers via the path 62ε / 妾 耆The division chamber 62C flows out and passes through the passage 62E, and finally enters the S Λ chamber, 62D. After that, it flows out from the division $ 62D and enters the refrigerant passage / sub-channel, passes through the refrigerant discharge pipe M and flows into the cooling passage to 154 after passing through the passage. '立 ％ ^ 此' According to the embodiment structure of this situation, the upper compression cylinder 3 8 is Γ, and the ^ discharge passage 3 9 flows into the discharge silencing chamber 6 2 and the high-pressure cold = body 'successively passes through the plurality of division chambers 62. 8 to 621) and the narrow passage 62E that connects these branches to the refrigerant passage 188, so the refrigerant flows

313808.ptd Page 74 550345

V. Description of the invention (64) Gas pulsation can be effectively absorbed through the process of passing through each of the division chambers 6 2 A to 6 2 D and the narrow passage 6 2 E ··, thereby effectively suppressing the rotary compressor 1 〇Noise and vibration. According to the present invention, as described above, the present invention relates to a rotary compressor provided with an electric component in a closed container and a rotary compression component driven by the electric component. The compression cylinder of the module and the roller formed on the eccentric part of the rotary shaft of the electric component to eccentrically rotate in the compression cylinder; the abutting rollers separate the compression cylinder from the low-pressure chamber side and the high-pressure chamber side wings. A spring member for constantly urging the flap toward the roller; a receiving part of the spring member formed in the compression cylinder and opened on the flap side and the closed container side; located on the closed container side of the spring member and fitted with a gap The plunger inserted into the receiving part in the same way; installed on the peripheral surface of the plunger and used to seal the 0 ring between the plunger and the receiving part; therefore, it is the same as the case of pressing the plunger into the receiving part and being fixed. Compression cylinders have problems such as deformation, reduced sealing, and deterioration in performance. In addition, "the gap between the compression cylinder and the hermetic container is set to a distance smaller than 0 ring to the end of the hermetic container side of the plunger in the fitting of the gap", so the plunger is pushed out from the receiving part When moving, but abutting on the closed container to hinder movement, the O-ring can still be located in the housing for sealing and opening, so there is no problem with the function of the latch. θ Especially in a multi-stage compression rotary compressor that forms a medium pressure inside a hermetic container. When ⑶ gas is used as the refrigerant, and the medium pressure is inside the hermetic container, and extremely high pressure is formed in the second rotary compression module, it maintains compression.

550345 V. Description of the invention (65) The machine function and the significant effect of preventing the spring member from falling off. In addition, according to the present invention, a rotary compressor configured by installing an electric component in a hermetic container and a rotary compression component driven by the electric component, is provided with a rotary compressor that is fitted into the rotary compression component. Compression cylinder and an eccentric part formed on the rotating shaft of the electric component, and an eccentric rotating roller in the compression cylinder; a support member having a bearing for the rotating shaft while closing the opening surface of the compression cylinder; The inside of the compression cylinder is divided into wing plates on the low-pressure chamber side and the high-pressure chamber side; a spring member for constantly urging the fins toward the roller side; formed in the compression cylinder and opened on the wing side and the closed container A housing portion of the spring member; a plunger located on the sealed container side of the spring member and press-fitted into the housing portion. Since the support member attached to a portion corresponding to the plunger forms a recessed portion recessed in a direction away from the compression cylinder, the plunger is pushed into the accommodation portion even if the compression cylinder is expanded toward the support member side. Deformation can also be used to absorb the deformation of the compression cylinder and avoid the problem of gaps between the compression cylinder and the support member. This can prevent the deterioration of the performance caused by the reduction of the sealing caused by the deformation of the compression cylinder in advance. In particular, in a multi-stage compression rotary compressor that forms a medium pressure inside a hermetic container, when using CO helium as a refrigerant, and the medium pressure in the hermetic container, and extremely high pressure is formed in the second rotary compression assembly, Significant effect of maintaining compressor function and preventing spring members from falling off. In addition, according to the present invention, a sealed container is provided with an electric component and first and second rotary compression components driven by the electric component, and the gas compressed by the first rotary compression component is spouted out of the airtight container.

313808.ptd Page 76 550345 V. Description of the invention (66) A rotary compressor in which the discharged medium-pressure gas is compressed by a second rotary compression unit is closed. The rotary compressor includes: Component compression cylinders; intermediate partition plates between the compression cylinders to separate each of the rotary compression components; support members for closing the opening surfaces of the compression cylinders and having bearings for the rotary shafts; and Oil hole; Because the oil supply path is formed in the intermediate partition plate to communicate the oil hole and the suction side of the second rotary compression unit, even if the pressure in the compression cylinder of the second rotary compression unit is too high, In the case of a medium-pressure closed container, it is possible to reliably supply oil into the compression cylinder from the oil supply path formed in the intermediate partition plate by using the suction pressure loss of the second rotary compression unit during the suction process. Thereby, the lubrication of the second rotary compression module can be performed reliably, and the purposes of ensuring performance and improving reliability are achieved. In addition, according to the present invention, in addition to the above, a through hole is formed in the intermediate partition plate to communicate the outer peripheral surface and the inner peripheral surface on the rotation shaft side to form an oil supply path, and at the same time, the outer peripheral side of the through hole is formed. It is sealed, and the communication hole connecting the through hole and the suction side is provided in the compression cylinder constituting the second rotary compression unit, so it is easy to process the intermediate partition plate constituting the oil supply path and reduce production. cost. In addition, according to the present invention, a sealed container is provided with an electric component and first and second rotary compression components driven by the electric component, and the C0 refrigerant gas compressed by the first rotary compression component is discharged. A rotary compressor that compresses the discharged medium-pressure refrigerant gas in a closed container by a second rotary compression unit, which is provided with:

313808.ptd Page 77 550345 V. Description of the invention (67) A compression cylinder that becomes the second rotary compression assembly; while closing the opening surface of the compression cylinder, a support member having a bearing erected at the center of the rotary shaft; formed on The support member on the outer side of the bearing is connected to the compression muffler chamber, and the periphery of the muffler chamber is bolted to the support member to close the opening of the muffler chamber. A gasket is interposed therebetween, and at the same time, a zero ring is provided between the inner peripheral end surface of the casing and the bearing outer surface. Without forming a sealing surface at the base of the bearing, the inner peripheral end surface of the casing can be fully sealed and the casing and support can be prevented. Air leakage occurs between components. By using xtb, not only can the volume of the anechoic chamber be enlarged, but also it is not necessary to fix the cover to the bearing through the 0 ring as is known, so it can greatly reduce the processing cost and parts cost as a whole. In addition, according to the present invention, a closed medium container is provided with an electric component and first and second rotary compression components driven by the electric component, and a CO2 medium gas compressed by the first rotary compression component. A rotary compressor that discharges into the closed container and compresses the discharged medium-pressure refrigerant gas by a second rotary compression unit. The rotary compressor includes a compression cylinder constituting the second rotary compression unit, and the compression cylinder is closed. At the same time as the opening surface, a support member having a bearing erected at the center of the rotating shaft; a support member formed on the outside of the bearing and a discharge silencing chamber communicating with the interior of the compression cylinder; and a support member installed to block the discharge The cover of the opening of the anechoic chamber. Since the thickness of the cover is set to be greater than 2mm and less than 10mm, and the thickness of the cover is set to 6mm, the strength of the cover itself can be ensured and the deformation caused by deformation can be prevented. At the same time of air leakage, the insulation distance from the electric components is ensured to achieve the miniaturization of the compressor.

313808.ptd p. 78 550345, description of the invention (68) __ In this way, in addition to the volume expansion of the anechoic chamber, the casing must be fixed to the bearing by the c ring as usual, ^, also In any case, it can significantly reduce processing costs and component costs. This is all in addition. According to the present invention, it is based on the poor components, and is carried out by the electric component: moving it; there are injuries: moving and shrinking the component, and rotating the compression of the compression component by 0. A rotary compressor that compresses refrigerant gas discharged from a milk in the second rotary compression group in a closed container, and the spouted t is a compression cylinder of each rotary compression assembly. · In addition to the respective facets, the support members of the bearing with a rotating shaft in the center, the support members outside the openings of the compression cylinders, and the compression cylinder ^ cattle are formed on the shaft support: = 牛 由 以 分 "塞 ^: Dagger room ^ Support members and various military shells :::: = = 连接 各 = Upper pressure, cylinder and each support member, due to the external auxiliary plug seal. "" Two-two-thickness leaks between the cylinder and each supporting member, and then, in addition, according to this Yanming contraction, it is divided into low pressure:;,: re-rotating rollers; abutting the two Qing and shrinking group Center, right Xi Η heart — until the horse pressure side chamber is placed η · The agricultural wheel and the pressured fins are contained in it], the piece is formed near ι, so it can also be subsidized = right :: subsidy branch system The air leak located at the dagger rainbow. The soil effectively prevents the back pressure applied to t JV, attachment, and flaps 313808.ptd page 79 550345 V. Description of the invention (69) According to the present invention, it is a kind of The sealed container is provided with an electric component and first and second rotary compression components driven by the electric component. The second rotation can compress the component to compress the rotation of the gas compressed by the first rotary compression component. Type compressor, comprising: first and second compression cylinders constituting first and second rotary compression units; and first and second cylinders fitted to a rotating shaft of the electric unit at a phase difference of 180 degrees. 1st and 2nd eccentric parts, 1st and 2nd eccentric rotation in each compression cylinder The 2 rollers are formed by forming the cross-sectional shape of the connecting portion connecting the two eccentric portions to a thickness that is orthogonal to the current eccentric direction and has a thickness greater than the thickness of the eccentric portions of the two eccentric portions. Therefore, the rigidity of the rotary shaft can be improved, and The elastic deformation is effectively prevented. In particular, since the side surface of the eccentric direction side of the first eccentric portion of the connecting portion is formed into an arc shape at the same center as the second eccentric portion, the eccentric direction side of the second eccentric portion is formed. The side surface is formed in the shape of an arc with the same center as the first eccentric portion, so the number of times of changing the chuck position can be reduced when cutting a rotating shaft having two eccentric portions and a connecting portion. This not only reduces the number of processing steps, At the same time, cost reduction due to improved productivity can also be achieved. In addition, according to the present invention, a sealed component is provided with an electric component in a closed container, and a compression component driven by the electric component, and the refrigerant can be introduced into the tube. The C 0 refrigerant sucked in is compressed by the compression component and spit out of the closed container, and then spit out to the outside by the refrigerant discharge pipe. Type compressor, since there are provided comprising in a sealed container, and are connected with the refrigerant introducing pipe cooling medium discharge pipe of the casing, around the outside of the sleeve, shaped

313808.ptd Page 80 550345 V. Description of the invention (70) It is used to fasten the flange part of the coupler for connecting S tube, so you can use the flange part to simply install the The piping coupler is fastened and connected to the sleeve of the closed container. Thereby, the air-tightness test in the manufacturing steps of the hermetic compressor for forming an internal high pressure can be completed in a short time. In addition, according to the present invention, a sealed component is provided with an electric component in a sealed container and a compression component driven by the electric component. The CO medium that can be sucked in through the refrigerant introduction pipe is compressed by the compression component and spit out of the seal. Inside the container, the hermetic compressor is discharged from the refrigerant discharge pipe to the outside. Since it has a sleeve installed in the sealed container, and connected to the refrigerant introduction pipe and the refrigerant discharge pipe, respectively, it surrounds the outer surface of the sleeve. A threaded groove is formed to connect the self-contained pipe, so the threaded groove can be used to simply connect the pipe of the squeeze air generating device to the sleeve of the closed container. Thereby, the air-tightness test in the manufacturing steps of the hermetic compressor for forming an internal high pressure can be completed in a short time. In addition, according to the present invention, a hermetically sealed container is provided with an electric component and a compression component driven by the electric component. The CO medium that is sucked in by the refrigerant introduction pipe can be compressed by the compression component and spit out of the hermetic container. Inside, the hermetic compressor which is discharged from the refrigerant discharge pipe to the outside is provided with a plurality of sleeves which are installed in the sealed container and are connected to the refrigerant introduction pipe and the refrigerant discharge pipe, respectively, and are connected to one of the adjacent ones. The outer periphery of the sleeve is formed with a flange portion for coupling the piping to the coupling, and the other sleeve is also formed with a thread groove for connecting the pipeline. Therefore, the flange portion can be used. , Simply install it in the press

313808.ptd Page 81 550345 V. Description of the invention (71) The coupler of the piping of the air generating device is fastened to the sleeve connected to the closed container. In this way, the air-tight test in the manufacturing steps of the hermetic compressor that forms an internal high pressure is completed in a short time. In particular, because the flanges are formed on the sleeves adjacent to each other, and the thread grooves are formed on the sleeves on the other side, the coupler with a larger size will not be connected in an adjacent manner. Even if the interval between them is small, the narrow space can be used to connect a plurality of pipes of the squeeze air generating device. Further, according to the present invention, a compressor in which an electric component is provided in a container and a compression component driven by the electric component is provided with a container-side bracket provided on a side of the container; a pressure accumulator; and The pressure accumulator-side bracket on which the pressure accumulator is mounted; since the pressure accumulator-side bracket is fixed to the container-side bracket, and the pressure accumulator is installed in the container through two brackets, When the capacity of the accumulator is changed, it is possible to prevent the interference with the piping by changing only the accumulator-side bracket without changing the closed container-side bracket. Therefore, the influence on the manufacturing equipment of the compressor can also be eliminated. In addition, when the capacity of the pressure accumulator is changed, the pressure accumulator side can be installed only at the center or center of gravity position of the pressure accumulator side by changing the bracket of the pressure accumulator side, so that the pressure accumulator can be maintained. At or near the center or center of gravity of the accumulator to prevent the increase of noise due to vibration. In addition, according to the present invention, a compressor is provided with an electric component in a hermetic container; first and second compression components driven by the electric component; and a refrigerant pipe introduced into the refrigerant tube compressed by the first compression component. ; Introducing the medium-pressure refrigerant gas compressed by the first compression module into the refrigerant pipe of the second compression module; and the cold pipe that discharges the high-pressure gas compressed by the second compression module

313808.ptd Page 82 550345 V. Description of the invention (72) Media tube; Because the refrigerant tubes of the first and second compression components are connected to the closed container at adjacent positions, the closed container is surrounded by the closed container in the opposite direction. Therefore, each refrigerant tube can be arranged in a limited space without interfering with each other. In particular, when the refrigerant pipe of the first compression module is connected to the closed container at a position below the refrigerant pipe of the second compression module, the pressure accumulator is arranged above the connection position of each refrigerant tube and the closed container. In addition, when the pressure accumulator is connected to the refrigerant pipe for introducing the refrigerant into the first compression module, not only the two refrigerant pipes can be prevented from interfering with each other, but also the position of the pressure accumulator can be lowered to the lowest position and brought close to the first 2 Compress the refrigerant tube of the module, which can greatly improve space efficiency. In addition, according to the present invention, a sealed container is provided with an electric component and first and second compression components driven by the electric component. The refrigerant gas sucked into the first refrigerant introduction pipe can be passed through the first component. The compression unit compresses and spit out of the hermetic container, and then sucks the medium-pressure refrigerant gas discharged through the second refrigerant introduction pipe located outside the hermetic container, and compresses by the second compression unit. Positions adjacent to the first and second refrigerant introduction pipes are connected to the hermetic container and surrounded by the hermetic container in opposite directions. Therefore, each refrigerant introduction pipe can be arranged in a limited space without interfering with each other. In particular, when the first refrigerant introduction pipe is connected to the closed container at a position lower than the second refrigerant guide pipe, and the pressure accumulator is arranged above the connection position between each refrigerant introduction pipe and the closed container, and the storage When the compressor is connected to the first refrigerant introduction pipe, not only can the two refrigerant introduction pipes interfere with each other, but also

313808.ptd page 83 550345 V. Description of the invention (73) The position of the pressure accumulator can be lowered to the lowest position, so that it can approach the second refrigerant introduction pipe, and greatly improve the space efficiency. Furthermore, according to the present invention, it is a hermetic compression provided with an electric component in a hermetic container and a compression component driven by the electric component, and the refrigerant is compressed by the compression component and spit out of the hermetic container. The machine has a terminal with an end cap installed in a closed container, and forms a step with a predetermined curvature by pressing the end cap around the terminal, so the rigidity of the end cap near the terminal can be improved, especially as In the case where the CO gas is compressed as a refrigerant, when the pressure in the closed container is increased, the deformation of the end cap caused by the internal pressure of the closed container can be reduced, and the purpose of improving the pressure resistance can be achieved. In addition, according to the present invention, in addition to the above, except that the end cap is slightly bowl-shaped, and the step is formed to be axisymmetric about the center axis of the end cap, the terminal is installed at the center position of the end cap, so It can balance the deformation of the end cap of the terminal welded part caused by the internal pressure of the closed container, and prevent cracks or peeling of the welded part caused by uneven deformation in advance, thereby further improving its pressure resistance. In addition, according to the present invention, there is provided a terminal installed in a hermetic container of a hermetic electric compressor, and the terminal is provided with: a circular glass portion penetrating and mounting an electrical terminal; and formed around the glass portion, Furthermore, the flange-shaped metal mounting portion fixed to the peripheral portion of the mounting hole of the closed container is welded, and the thickness dimension of the mounting portion is set in the range of 2 · 4 soil 0.5 mm, so the pressure in the closed container is increased. C0 Ling medium hermetic compressor can fully ensure the pressure resistance of the terminal, and inhibit the need for welding and fixing

313808.ptd Page 84 550345 V. Description of the invention (74) Increase in heat. In this way, it is possible to avoid in advance the occurrence of cracks in the mounting portion of the terminal, or damage to the terminal caused by damage to the glass portion. In addition, according to the present invention, a rotary compressor provided with an electric component and a compression component driven by the electric component in a closed container is provided with a single or A plurality of compression cylinders; a first support member having a bearing for a rotating shaft of the electric component while closing the open surface on the opposite side of the electric component of the compression cylinder; The second support member has a bearing for the rotating shaft of the electric component. Compared to the bearing of one of the first and second support members, a carbon bushing is provided between the bearing and the rotating shaft. In the case where bushes are provided in the bearings of the two supporting members respectively, the purpose of reducing costs can be achieved more. In particular, if a bushing is provided in the bearing of the first support member and the bushing is not provided in the bearing of the second support member where the contact area with the rotating shaft is increased on the electric component side of the compression cylinder, it can be maintained. The sliding performance in the bearing of the first support member having a small pressure area and a large load applied to each unit area is maintained, and the long-term performance is maintained, and by omitting the pressure area, the load is increased and applied to each unit area. The load of the bearing bushing of the second support member is reduced to reduce costs. In addition, according to the present invention, a hermetically sealed container is provided with an electric component and first and second compression components driven by the electric component, and the gas compressed by the first rotary compression component is discharged from the hermetic container.

313808.ptd Page 85 550345 V. Description of the invention 2 = ί is squeezed by the second rotation. The component compresses the spouted medium-pressure gas, and two, two, and t, which are useful to constitute the first and second, respectively. Rotary compression, 2 compression ^ Same as π \ when closing the opening surface of the first deflation cylinder: Ϊ% The first support member of the bearing of the rotating car of the moving assembly; while Fen closed the opening surface of the 2 compression cylinder, And the second support is only available; since the bearings attached to the components of the i and the second building are supported, the carbon engine between the bearing and the rotating shaft is provided. A rain-shaped support member is provided with a vehicle in the bearing, which can more effectively reduce the cost of parts. In particular, if a bushing is provided in the bearing of the second support member and the bushing is not provided in the bearing of the first support member that closes the opening surface of the first compression cylinder which is lower than the pressure in the closed container, it can be blocked. The opening surface of the second support member whose pressure is higher than the sealed volume 1 ^ maintains the sliding performance in the bearing of the second support member which is difficult to supply and tamp due to the pressure difference, while maintaining the resistance, The cost reduction is achieved by omitting the bushing of the bearing of the first-generation support member that does not cause oil supply difficulties due to the pressure difference. 1 In addition, when CO gas is used as the refrigerant and the pressure inside the closed container becomes extremely high, the effect of maintaining the durability of the compressor is <:: I. In addition, according to the present invention, a compressed component provided with an electric component and a compressed component driven by the electric component in a closed container, and the compressed component compresses the refrigerant sucked into the refrigerant introduction pipe, and then Since the refrigerant 2 is a hermetic compressor discharged from a tube, it is provided with a through hole corresponding to and installed on the curved surface of the closed container, and a sleeve 'to which a refrigerant introduction pipe or a cold discharge pipe is connected is arranged around the through hole. 1 closed surface of the closed container

3l3S08.ptd

550345 V. Description of the invention (76) At the same time, an insertion part inserted into the through hole is formed on the sleeve; a flat surface that is located around the sleeve and is in contact with the closed container, and the abutment part of the sleeve is flat with the closed container The surface is fixed by injection welding, so the flat surface of the sealed container can be in contact with the abutment portion of the sleeve to ensure the straight angle of the sleeve corresponding to the inner diameter of the sealed container. Thereby, the right angle of the sleeve can be set without using a mold, and the objectives of improving productivity and accuracy can be achieved. In addition, according to the present invention, in addition to the above, since the flat surface is recessed around the through-hole, it is possible to further straighten the straight of the sleeve by the surface and the recess of the sleeve buried in the recessed portion of the closed container. The angle is maintained with good precision. According to the present invention, there is provided a rotary compressor including an electric component and a compression component driven by the electric component in a hermetic container. The rotary compressor is provided with a compression cylinder fitted in the rotary compression component and A roller formed at an eccentric portion of a rotary shaft of the electric component to perform eccentric rotation in the compression cylinder; a support member having a bearing of the rotary shaft while closing an opening surface of the compression cylinder; a suction passage formed in the support member; and It is formed obliquely in the compression cylinder and corresponds to the suction passage of the support member so that the suction passage communicates with the suction hole in the compression cylinder. Since the edge portion of the suction passage side of the suction hole is formed into a semi-circular arc shape, it can be reduced. The path resistance of the communication part of the suction hole and the suction path reduces the disorder of air flow and realizes efficient operation. According to this invention, an inclined suction hole can be formed in the compression cylinder in a state where the end mill having a flat front end and the compression cylinder are perpendicular to each other.

313808.ptd Page 87 550345 V. Description of the invention (77) Other screws? The suction hole is formed in the same step of perforation processing such as L or punching hole, and the production cost can be reduced by reducing the number of steps. In addition, through related processing, even the end mill with a flat front end can make the edge of the suction passage side of the suction hole form a semi-circular arc. Therefore, as described above, the communication between the suction hole and the suction passage can be reduced. Path resistance reduces air flow turbulence and achieves efficient operation. In addition, according to the present invention, since a part of the end mill with a mountain-shaped front end can be vertically leaned against the compression cylinder to form an inclined injection hole in the compression cylinder, other screw holes or punches can be performed. The ejection holes are formed in the same step of perforation processing such as cutting holes, and the production cost is reduced by reducing the number of steps. According to the present invention, the structure is provided with an electric component in a sealed container and driven by the electric component. The first and second compression components, and the refrigerant gas compressed by the first compression component is discharged out of the closed container, and the second compression component is used to compress the discharged medium-pressure refrigerant gas; the compressor flows into the compressor A gas cooler for the refrigerant discharged from the second compression module; a pressure reducing device connected to the outlet side of the gas cooler; and an evaporator connected to the outlet side of the pressure reducing device; The refrigerant circuit of the refrigerant generated by the evaporator includes a defrosting circuit for supplying the refrigerant discharged from the first compression module to the evaporator without reducing the pressure; And the flow path control device for controlling the refrigerant flow of the defrosting circuit, when the evaporator defrosting, the refrigerant discharged from the first compression component can be flowed into the defrosting circuit by the flow path control device, and Without decompression, it was supplied to an evaporator and heated.

313808.ptd Page 88 550345 V. Description of the invention (78) By using itb, it is possible to supply the high-pressure refrigerant discharged from the second compression module to the evaporator for defrosting in a state without pressure reduction, which can prevent The discharge and suction pressures generated in the second compression unit are reversed. In particular, a significant effect can be obtained in a refrigerant circuit using CO helium with a large high-low pressure difference as a refrigerant. In addition, when warm water is generated by the gas cooler, Kehe J uses a refrigerant to transfer the heat of the warm water of the gas cooler to the evaporator, and more quickly performs defrosting of the evaporator. Next, a rotary compressor 10 according to another embodiment of the present invention will be described with reference to Figs. 37 to 39. Figs. In addition, in each figure, the same symbols as those in FIGS. 1 to 18 indicate the same device or the same function. In each figure, 10 is an internal medium-pressure multi-stage (two-stage) compression type rotary compressor using carbon dioxide (C0 2) as a refrigerant. The rotary compressor 10 is a circle formed by a steel plate. A cylindrical closed container 12; an electric component 14 stored in the upper side of the internal space of the closed container 12 and a lower portion of the electric component 14 are arranged, and driven by a rotating shaft 16 of the electric component 14 The first rotary compression unit 3 2 (first stage) and the second rotary compression unit (second stage) are formed by a rotary compression mechanism unit 18. The discharge volume of the second rotary compression unit 34 is set to be smaller than the discharge volume of the first rotary compression unit 32. The closed container 12 has a bottom as an oil storage tank, and is composed of: a cylindrical container body 12A housing electric components 14 and a rotary compression mechanism portion 18; and a slightly bowl-shaped closure of an upper opening of the container body 12A The end cover (cover body) 1 2 B is formed, and a circular mounting hole 1 2 D is formed in the upper center of the end cover 1 2 B, and the mounting hole 1 2 D is provided with an electric component 1 4 Powered

313808.ptd Page 89 550345 V. Description of the invention (79) Terminal (omit wiring) 2 0. At this time, the end cover 12B around the terminal 20 is extruded to form a step portion with a predetermined curvature (the step M 2C forms a ring shape.) In addition, the terminal 20 is formed by a circle penetrating and mounting the electrical terminal 139. The shape-breaking glass portion 2 is formed with a metal mounting portion 20B formed around the glass portion 20A and protruding downward in a flange shape. The terminal 20 is formed by the glass portion. 20 A is inserted into the mounting hole 12D from the lower side so that it faces upward, and the mounting portion 20Bfe is connected to the periphery of the mounting hole 12D. The mounting portion 20β is fused to the periphery of the mounting hole 12D of the end cover 12B and fixed. On the end cap ι2β. The electric component 14 is composed of: a stator 2 2 which is installed in a ring along the inner peripheral surface of the upper space of the closed container 2; and a gap G2 (several intervals) is provided inside the stator 2 2 It is formed by inserting a rotor 24. The rotor 24 is fixed to a rotation shaft extending in the vertical direction through the center. The stator 22 includes a laminated body 2 6 in which circular electromagnetic steel plates are laminated; and Straight winding method (not the distributed winding method with coils pre-rolled into bundles) and It is a method of winding the coil around the teeth 2 6 A) The wound stator coil 2 8 (Figure 39). In addition, the rotor 24 and the stator 2 2 are formed of a laminated body 30 of electromagnetic steel plates, and A permanent magnet is inserted into the laminated body 30. An intermediate partition plate 36 is interposed between the first rotary compression module 32 and the second rotary compression module 34. That is, the first rotary compression module 3 2 and the second rotary compression assembly 3 4 are composed of; an intermediate partition plate 3 6; compression cylinders 38 and 40 arranged above and below the intermediate partition plate 3 6; 1 8 are formed in the upper and lower compression cylinders 38 and 40. 0 degree phase difference and fitted to the upper and lower eccentric parts mounted on the rotating shaft 16

313808.ptd Page 90 550345 V. Description of the invention (80) 4 2, 4 4 The rollers 46, 48 for eccentric rotation, and the upper and lower compression wheels abut on the upper and lower chamber sides and the high-pressure chamber side (not shown) & lt iq [W knife is divided into upper opening surface of low pressure 38 and lower opening surface of lower compression cylinder 40, and the bearing of i shrink cylinder rotating shaft 16 is used as a supporting member, and is used as a lower supporting member 5 6 Make up. 4 gram crop member 54 and the upper support member 54 and the lower support frame are formed with suction passages 58 and 60, and recessed vomits formed by suction holes 161 and i 62 and the upper and lower compression cylinders respectively. The openings of the two silencer chambers 62 and 64 which communicate with each other are divided into two: 62 and 64 ′, and that is, the discharge silencer chamber 62 is closed by a jealous cover. Also, the ejection muffler chamber 64 is closed by the cover 66, and at this time, the middle 1 of the upper support member 54 is closed by the cover 68. The inner surface of the bearing 54A is provided with a cylindrical "m-bearing central through-shaped ^ shang bushing 122 on the lower support member 56. In addition, a cylindrical carbon shaft is also provided with 56A on the inner surface of the 56A. Bearings such as bushings 1 22, 1 2 3 are held at the upper part 2 and 3. The rotating shaft 1 6 is a bearing 56A through the lower support member 56. The bearing 54A of the swing member 54 and the lower cover 68 are at this time. It consists of four parts of the circle part, which are made of steel plate with main bolts 1 2 g, round, and peripheral support members 56 to block the lower surface of the discharge muffler chamber 64 which is fixed to the lower branch and communicates with the first rotary press. The front end of 129 ··· in the lower compression cylinder 40 of the piece 32 is opened with the upper support structure. The inner periphery of the main bolt is screwed by 4 of the lower support member 56. The inner face of the lower casing 68 of $ 56 A Protrude within

313808.ptd Page 9〗 550345 V. Description of the invention (81) The lower end face of this' shaft profile 123 can be held by the lower cover 68 to avoid falling off. The connection of the muffler chamber 64 and the electric two holes of the upper casing 66 in the closed container 12 is made by penetrating the upper and lower compression cylinders 3,4 0 or the middle partition plate. 2: ΐ 出 管 121 (第1 The refrigerant of the rotary compression assembly 32 is ejected from the upper part i 1121 'corresponding in the embodiment' and points to the coil f2; the adjacent stator coils 28 of the stator 22 of the 14, 25 =, G1 ( Electric components "where the middle path resistance is relatively small) * Neighboring: Therefore, 子 4 26A of coil 28 is wound on stator 22 in a straight-winding manner. This is compared to the aforementioned distributed winding method, 苴 28, The gap G1 between 28 is large (Fig. 39).-The path resistance of the electric component 14 of the discharge tube 121 between the shuttle coils is the gap corresponding to the middle coils 28 and 28. C. The gap G2 between the rollers 24 is also the upper cover 66, which presses the upper plug of the discharge anechoic chamber rotating assembly 34 communicating with the inside of the first reduction cylinder 38, and divides the inside of the closed container 12 into the discharge eliminator. J 2 is closed. The peripheral portion of the upper casing 66 is fixed to the upper support member 54 by the upper part of the moving assembly. The weight 78 ··· is threaded with the lower supporting member 56. The front end of the bolt 78 ··· is also 80 in the rotation axis J 6; (Simultaneously

313808.ptd page 92 550345 V. Description of the invention (82) The upper and lower eccentric portions 4 2, 4 4 are formed on the rotating shaft 16. The connecting portion 90 is used to connect the upper and lower eccentric portions 42 and 44 which are integrated with the rotating shaft 16 and have a phase difference of 180 degrees. In order to make the cross-sectional area larger than the rotating shaft 16 The round cross-section of the spheroid is made rigid, and it is made into a non-circular rugby shape, for example. That is, the cross-sectional area of the connecting portion 90 connecting the upper and lower eccentric portions 4 2 and 4 4 provided on the rotation shaft 16 increases the thickness in a direction perpendicular to the eccentric direction of the upper and lower eccentric portions 4 2 and 4 4. Thereby, the cross-sectional area of the connecting portion 90, which is used to connect the upper and lower eccentric portions 42, 4 and 4 which are integrally provided with the rotating shaft 16, can be increased, and the secondary moment and strength (rigidity) of the cross-section can be increased to improve durability And reliability. In particular, when two-stage compression uses a high-pressure refrigerant, the load applied to the rotating shaft 16 increases due to the large pressure difference between high and low pressures. However, the cross-sectional area of the connecting portion 90 becomes larger and the strength (rigidity) ) To increase the elastic deformation of the rotating shaft 16 can be avoided. In addition, the refrigerant used in this case is based on the maintenance of the global environment, and considerations of flammability and toxicity. It uses the aforementioned carbon dioxide (C02), which is one of the carbonic acid gases of natural refrigerants, and is used as a lubricant oil. Existing oils such as mineral oil (Minera 1 0 i 1), benzene-based benzene oil, ether oil, and fatty oil are used. The side of the container body 1 2 A of the hermetic container 12, the suction passage 5 8, 60 of the upper support member 54 and the lower support member 56, the upper side (the other side) of the muffler chamber 6 2 and the electric component 14 ) At roughly corresponding positions, sleeves 14, 142, 143, and 144 are respectively welded and fixed. In addition, the sleeve 141

313808.ptd Page 93 550345 V. Description of the invention (83) Insert and pipe one of the suction tubes of 9 2 to reach the sleeve assembly 1 4 and then to the other end of the medium discharge pipe. The refrigerant introduced into the upper compression cylinder 38 is introduced, and the other end of the refrigerant introduction pipe 92 is communicated with the upper compression cylinder 38. The refrigerant introduction pipe g 2 passes through the outside of the sealed container 丨 2/44 and is inserted into the sleeve 1 4 4 and is opened to the inside of the sealed container 丨 2 on the electric side.

In the sleeve g 1 4 2, one end of a refrigerant introduction pipe 94 for introducing refrigerant gas to the refrigerant cylinder 40 is inserted, and the refrigerant introduction pipe 94 communicates with the suction passage 60 of the lower compression cylinder 40. In addition, the cold 9 6 system is inserted into and connected to the sleeve 1 4 3, and the refrigerant discharge pipe 9 6 communicates with the discharge silencing chamber 62. The following operation will be described with the above configuration. In addition, during heating operation, the solenoid valve 159 is closed. After power is applied to the stator coil of the electric component 14 through the terminal 20 and wiring (not shown), the electric component 14 can be activated and the stator 24 can be rotated. By this rotation, the upper and lower rollers 46 and 48 fitted in the upper and lower eccentric portions 42 and 44 integrally provided with the rotation shaft 6 can rotate eccentrically in the upper and lower compression cylinders 38 and 40.

Thereby, the low pressure (first stage suction pressure LP: 4MpaG) of the low pressure chamber side of the lower compression cylinder 40 is sucked from the suction hole 162 through the medium introduction pipe 94 and the suction passage 60 formed in the lower support member 56. The refrigerant gas is compressed to an intermediate pressure (MP1: 8 MPaG) by the operation of the rollers 48 and the fins. Then, the high pressure chamber side of the lower compression cylinder 40 is discharged from the muffler chamber formed in the lower support member 5 6 64 铄 is discharged out of the sealed container 12 from the communication path 63 and from the middle discharge pipe ι21. '' At this time, since the middle discharge tube 1 2 1 is corresponding and points to the package above

550345 V. Description of the invention (84) The stator 2 2 of the electric component 14 and the gap G 1 between the stator coils 2 8 and 2 8 adjacent to each other, so the refrigerant gas can pass through the gap G 1 with a small path resistance. Passing through the electric component 14 smoothly and reaching above the electric component 14, the refrigerant gas having a low temperature can be actively supplied to the electric component 14 to make the refrigerant gas around the electric component 14 flow. The property is activated to cool the electric component 14 and suppress the temperature rise of the electric component 14. In addition, the inside of the closed container 12 can be made to a medium pressure (MP1). In addition, the medium-pressure refrigerant gas in the hermetic container 12 is a sleeve on the upper side of the electric component 1 4! 4 4 (the middle discharge pressure is the aforementioned mp 丨) flows out and enters the refrigerant introduction pipe 92, and enters the suction passage 58 formed in the upper support member 5 4 through the refrigerant introduction pipe 92 outside the sealed container 丨 2. Then, via this suction, the path 5 8 ′ is sucked into the low-pressure chamber side of the upper compression cylinder 3 8 through the suction hole 1 6 j ($ ,, MP2) ° Since it is tied to the upper side of the electric component 14, it is closed by a Since the refrigerant introduction pipe g 2 which is opened in the inside 12 draws refrigerant gas into the upper compression cylinder 38 of the second rotary compression assembly 34, it can be effectively used in the closed container 2 and the pipe 1 2 j is discharged from the middle of the knife. Refrigerant gas oil. Thereby, it can be reduced into the second rotary compression unit 34, and as described later, the "coming from the inside" can be prevented, and the rotary compressor 10 can be prevented from scorching and the like. ^ i, ,, and the medium-pressure refrigerant gas sucked into the low-pressure chamber side of the sink 38 is compressed by the roller 4 6 spot μα ^ ^ ^ ^ ^ ^ ^ The action of the wing is compressed in the second stage, and Form ^? 丄 "paper (second stage discharge pressure HP: 12MpaG), from high pressure to the side through the formation of" ^ Α φ 4 support member 5 4 discharge silencer 6 2, refrigerant discharge officer 9 6 and flows into [ Contains a lambda cooler 154. At this time, the temperature of the refrigerant rises to about ten U 1) C. The refrigerant gas containing Fanggu, Layi r &gt; plate pressure will generate heat, and will store the

313808.ptd Page 95 550345 V. Description of the invention (85) The water in the water tank is heated to produce warm water of about + 90 ° C. The refrigerant itself is cooled in the gas cooler 154 and escapes from the gas cooler 154. Then, the pressure is reduced by the expansion valve 156, and it is repeatedly flowed into the evaporator 15 and evaporated, and then sucked into the circulation in the first rotary compression unit 32 through the refrigerant introduction pipe 94. Moreover, in the above-mentioned embodiment, the refrigerant introduction pipe 92 is opened into the sealed container 12 in the sleeve 1 4 4 on the upper side of the electric component 14, but it is not limited to this, and it may be sealed. The inside of the container 12 may be directly sucked into the second rotary compression module, or it may be sucked through a refrigerant introduction pipe opened at the lower side of the electric module 14. With this configuration, the cooling effect of the electric component 14 can also be achieved. In this way, in the electric module, the refrigerant discharge point of the first rotary compression module corresponds to a small path resistance. Therefore, the refrigerant gas having a relatively low temperature discharged from the first rotary compression module can pass through the stator and rollers of the electric module. The gap between the electrical components, such as the gap between the stator coils and the gap between the stator coils, is low, and it flows around the electrical components. Thereby, the movement of the refrigerant gas in the closed container around the electric component becomes active, and the cooling effect of the refrigerant in the electric component is improved. In addition, the refrigerant discharge place of the first rotary compression module is located in a closed container located on one side of the electric module, and the refrigerant introduction pipe for drawing the refrigerant gas into the second rotary compression module is connected to the other side of the electric module. In the sealed container, the oil in the refrigerant gas discharged from the first rotary compression module can be effectively separated during the movement from one side to the other of the electric module, and then sucked into the first through the refrigerant introduction pipe. 2 rotation compression group

313808.ptd Page 96 550345 5. Description of the invention (86). This can reduce the amount of oil discharged from the second rotary compression unit outside the rotary compressor. In addition, if the refrigerant discharge point of the first rotary compression module is corresponding to the low path resistance of the electric component, such as the gap between the stator and rollers of the electric component and the gap between the stator coils, it will not only smoothly 1 The refrigerant gas discharged from the rotary compression module is sent to the refrigerant introduction pipe, and at the same time, it can activate the movement of the refrigerant gas in a closed container around the electric component, thereby improving the cooling effect of the refrigerant in the electric component. In addition, the stator coils are wound on the stator teeth by a straight winding method. Compared with the distributed winding method, the gap between the stator coils becomes larger, and the refrigerant gas flow is further improved. Next, another rotary compressor 10 according to the present invention will be described with reference to Figs. 40 to 44. Figs. In addition, in each figure, the same symbols as those in FIGS. 1 to 18 indicate the same device or have the same function. In each figure, 10 is an internal medium-pressure multi-stage (two-stage) compression type rotary compressor using carbon dioxide (C0 2) as a refrigerant. The rotary compressor 10 is a circle formed by a steel plate. A cylindrical sealed container 12; the electric component 14 accommodated in the upper side of the internal space of the sealed container 12 and the lower part of the electric component 14 are arranged, and is carried out by the rotating shaft 16 of the electric component 14 The first rotary compression unit 32 (the first stage) and the second rotary compression unit (the second stage) are driven by a rotary compression mechanism unit 18. The closed container 12 has a bottom as an oil storage tank, and is composed of: a container body 12A housing electric components 14 and a rotary compression mechanism portion 18; and a slightly bowl-shaped end cap that closes an upper opening of the container body 12A (Lid) 1 2B,

313808.ptd Page 97 550345 V. Description of the invention (87) A terminal for supplying electric power to the electric component 14 (the wiring is omitted) 20 is installed on the end cover 1 2 B. The electric component 14 is formed by a stator 2 2 mounted in a ring shape along the inner peripheral surface of the upper space of the hermetic container 12, and a rotor 24 that is inserted into the stator 22 and arranged at intervals. The rotor 24 is fixed to a rotary sleeve 16 extending in a straight direction through a center. The stator 22 includes a laminated body 26 in which circular electromagnetic steel plates are laminated, and a stator coil 28, which is wound around a tooth portion 2 6 A of the laminated body 26 in a straight roll (concentrated roll) manner. In addition, the rotor 2 4 is electromagnetically similar to the stator 2 2

A laminated body 30 of the plate is formed, and a permanent magnet is inserted into the laminated body 30. The first rotary compression unit 32 and the second rotary compression unit 3 4 are sandwiched between the intermediate rotary plate 36 and the intermediate rotary plate 36. That is, the first rotary compression unit 32 and the second rotary 3 6 are provided with an upper arm; an intermediate partition plate 3 6; disposed on the intermediate partition plate) ;: a compression cylinder 3 8 (second compression cylinder) 、 Compression cylinder 4 〇 (The first compression cylinder is installed at t lower compression cylinders 3, 8 and 40 with a phase difference of 180 degrees. For eccentric rotation

〆 and 4 fi, / 1 〇 · 丨 six 丄 A shrink cylinders 38, 48, abut the up and down rollers 46, 48, and press down

The high-pressure chamber hr4 (part 0Z is divided into the low-pressure chamber LR (Fig. 44 (f)) side and the side fins are not T f 4 (f)) side of the upper and lower fins 50 (the lower and lower The left side is shown), and the upper opening surface of the upper compression cylinder 38 is closed to serve as an optional structure surface, and the structure is also used as a bearing for the rotating shaft 16. Used upper support members 5 4 and lower support members 5 6

550345 V. Description of the invention ⑽) Suction passages 58 and 60 are formed in the ten support member 54 and the lower support member 56 by suction, and the borrow holes 6, 162 communicate with the interior of the upper and lower compression cylinders 38, 40, respectively. And the spit out of the muffler chambers 62, 64, and the bit = each M shrink cylinder 38 of the chambers 62, 64, the opening on the opposite side = occlusion. That is, the discharge muffler chamber 62 is a plug as a cover, and the discharge muffler chamber "is formed by the center of the 54 54, νν / ΛΤ support member 54. The bearing is formed outside the bearing, and is installed on the inside of% ^ \ ρ A cylindrical carbon bushing 122. This supporting structure 1 = the center of the 56 is formed to form a bearing 56A, and the lower part of the bearing 56A is the same as the flat surface of the bearing 56A. 122, ^ Shaped shaft bushing 123. The A of these shafts 54 and the lower support V: 256 = t ^^^ ^-4Λ: / Λ ^ Λ8? 9 &quot; «® ^ ^ ^ The rotation of the chamber 64 // the lower compression cylinder 40 of the assembly 32. The front end and the upper supporting floor structure V binocular of the upper part. The main spiral of the insect worm μ: The periphery is supported by the lower part, and the bearing of the member 56 56A; Surface ::: 68 9 The lower end face (located in the cylinder) of the bushing 1 2 3 can be held by the lower cover 68 to prevent it from falling off. Μ In addition, the upper cover is located in the discharge muffler 64 and the closed container 12 shell

• Ptd page 99 550345 V. Description of the invention (89) 6 6 The electric components 14 恻 ′ are communicated in a communication path 63 (not shown) passing through the upper and lower compression cylinders 38, 40 or the intermediate partition plate 36. At this time, an intermediate discharge pipe 12 2 is set up on the end of the communication road, and the intermediate discharge pipe 丨 2 丨 is an adjacent stator coil 2 8 which points to the stator 2 2 of the electric component 1 4 wound on the upper side, Gap between 2 and 8. At this time, the upper casing 66 is closed at the top of the discharge muffler chamber 62 connected to the inside of the upper compression cylinder 38 of the second rotary compression unit 34 at Toast Hill, and the hermetic container is closed. 2 The interior is divided into spit — 14 sides with electric components. The upper cover is out of the shoulder to 6 2 bolts 78 · · · From the upper part, the peripheral part is connected by 4 main parts ^ 78 is fixed to the upper support member yt # screw 78 · · · The front end is connected with The lower support is 1000M. And the main bolt Fig. 42 shows that the second rotary compression assembly is screwed together. Illustration. The upper compression cylinder 38 in which the accommodating chamber 4 is formed in the upper compression cylinder 38 has the above-mentioned fins 50 and abuts against the roller. '$ Containment room 70 is in the 42th position on the right side of the figure) where the aforementioned = ^ 50 is formed-the side 50 is on the other side (left side) of the opposite side and the 50th line is formed on the upper compression through the 16th wing The heart is divided into the low-pressure chamber LR and the high-pressure chamber HR, and the front 38 and the roller 46

* LR 'and the discharge hole 184 corresponds to the high-pressure chamber hole 161 corresponds to ϊ ί On the other hand, it is used to close the upper opening surface + of the upper compression cylinder -I and the lower compression cylinder 40, and the lower opening is stone-shaped, Above it (upper compression cylinder core spacer 36 series: large = and groove 191 are within a predetermined range from the inner peripheral surface as shown in Figure 41 on the circle ^. The oil supply ditch 1 9 1 series is corresponding to the first by / σ is shaped along the radius and is shaped by the upward pressure J in the figure 42__ § The wings of the cylinder 38

313808.ptd

550345 V. Description of the invention (90) The piece 50 is formed in a manner that it abuts the position 5 of the roller 46 to the lower side of the range α within the range of the side opposite to the wing piece 50 of the suction hole 16 1. In addition, the outer side of the oil supply groove 191 is connected to the low-pressure chamber LR side (suction side) in the upper compression cylinder 38. On the other hand, within the rotating shaft 16 is formed an oil dagger 80 which is perpendicular to the center of the shaft; and lateral oil supply holes 8 2, 84 (also formed on the upper and lower sides) communicating with the oil hole 80. The eccentric portions 42 and 44) and the openings on the inner peripheral surface side of the through holes 1 31 of the intermediate partition plate 36 communicate with the oil holes 80 through the oil supply holes 82 and 84. As described later, the medium pressure in the closed container 12 makes it difficult for oil to be supplied to the upper compression cylinder 3 8 forming the high pressure in the second stage, but the oil supply groove 191 is formed by the intermediate partition plate 36. It can be lifted up by the oil storage tank at the bottom of the closed container 12 to raise the oil hole 80. The oil flowing out of the oil supply holes 8 2, 8 4 flows into the oil supply groove 1 91 of the intermediate partition plate 36 and passes through This oil supply groove is supplied to the low-pressure chamber LR side (suction side) of the upper compression cylinder 38. Fig. 4 and Fig. 3 show pressure fluctuations in the upper compression cylinder 38, and p 1 in the figure shows pressure on the inner peripheral surface side of the intermediate partition plate 36. In the figure, as shown by LP, the internal pressure (suction pressure) of the low-pressure chamber LR of the upper compression red 38 is lower than the inner peripheral surface of the intermediate partition plate 36 due to the suction pressure loss during the suction process. Side pressure P] L. During this period, the 5 oil is injected from the oil hole 80 of the rotating shaft 16 through the oil supply groove 191 of the intermediate partition plate 36 into the low-pressure chamber LR in the upper compression cylinder 38 to complete the oil supply. Here, Figs. 44 (a) to &lt; [1] illustrate the refrigerant suction-compression stroke in the upper compression cylinder 38 of the second rotary compression element 34. Figs. Eccentricity of rotation axis 1 6

313808.ptd Page 101 550345 V. Description of the invention (91) When part 4 2 rotates counterclockwise in each figure, in (a) to (b) of figure 4 4 the suction hole 1 6 1 is by The wheels 4 6 are closed. Item (c) shows that the suction hole 1 6 1 is opened, and the suction of the refrigerant is started (the refrigerant is discharged on the opposite side). Items (c) to (e) indicate that the refrigerant is continuously sucked in. In this section, the oil supply ditch 191 is closed by the roller 46. Then in item (f), the oil supply ditch 191 appeared for the first time on the lower side of the roller 46, so that the oil was sucked into the low pressure surrounded by the fins 50 and roller 6 in the upper compression cylinder 38. Oil is supplied to the chamber LR. Then, in the item (j), the oil supply is continued until the upper side of the oil supply ditch 191 is closed by the roller 46, and the oil supply is stopped there (the supply interval in FIG. 43 is ended). Until the following (k) to (1) to (a) to (b), the refrigerant is continuously sucked in, and then compressed and discharged through the discharge holes 1 8 4. However, in order to connect the connecting portion 90 between the upper and lower eccentric portions 4 2 and 4 4 which are integrated with the rotating shaft 16 and have a 180 degree phase difference, the cross-sectional area of the cross-sectional shape is larger than that of the rotating shaft 16 It has a round cross-section and makes it rigid, and it is made into a non-circular shape called a football shape. That is, the thickness of the cross-sectional shape of the connecting portion 90 connecting the upper and lower eccentric portions 4 2, 4 4 provided on the rotation shaft 16 is increased in a direction perpendicular to the eccentric direction of the upper and lower eccentric portions 4 2, 44. Thereby, the cross-sectional area of the connecting portion 90 of the upper and lower eccentric cymbals P 42, 4 4 provided to be connected to the rotating shaft 16-body can be increased, and the secondary moment and strength (rigidity) of the cross section can be increased, and Improve the durability and reliability of the rotating shaft 16. In particular, when two-stage compression is performed, the pressure difference between the high and low pressures is too large, and the load applied to the rotating shaft 16 is increased. However, the cross-sectional area of the connecting portion 90 and its strength (rigidity) are increased. , So can avoid rotating shaft

313808.ptd page] 02 550345 V. Description of the invention (92) Elastic deformation. In this case, the refrigerant used is based on the maintenance location and the flammability and toxicity considerations. It is used for the purpose of using, for example, mineral oil (Mineral 0i 1), alkane | Existing oils such as oil. Soil /, ether oil, on the side of the container body i 2A of each container i 2, the upper support 柃 5 舁 and the suction passages 58 and 60 adjacent to the support member 56, and teething ...

660 ^ # J)) The sleeves f4ι and Η are welded and fixed at positions f. t _. The sleeves 141 and 142 are adjacent to each other up and down, and the sleeves 143 are on a roughly diagonal line of: =: 1. In addition, the casing tube system: Yu: The casing officer 141 is slightly deviated from the position of 90 degrees. Prepare $ μ = ί a set of officials 1 4 1 is inserted and connected to one end of a refrigerant introduction pipe 92 for introducing refrigerant gas to the jf: cylinder 38, and the refrigerant introduction pipe 92 is in-known with the suction of the upper compression cylinder 38 The path 58 communicates. This refrigerant guide reaches the sleeve 144 from the upper side of the sealed container 12, and the other end is inserted into the sleeve U4 and communicates with the inside of the sealed container 12. In the outer sleeve g 14 2, one end of a refrigerant introduction pipe 94 for connecting the refrigerant gas to the lower compression red 40 is inserted, and the other of the refrigerant introduction pipe 94 is connected to the suction passage 6 of the lower compression cylinder 40. Connected. In addition, the refrigerant outlet s 9 6 is inserted into and connected to the sleeve i 4 3, and one end of the refrigerant outlet pipe 96 is connected to the outlet muffler chamber 62. In addition, "Beru's rotary compressors 丨 〇 are also used in Figure 18

550345 V. Description of the invention (93) '~~ 一 ~~~~~ The refrigerant circuit of the water supply device 153 is connected with the same pipes. Jieshishi "= The operation is explained according to the above structure. During the heating operation, the solenoid valve 159 is closed. The terminal 20 and the not shown are used to: energize the fixed coil of the electric component i 4 After that, the electric components 丄 4 and 疋 2 4 can be started. By this rotation, the upper and lower rollers 46 and 48 which are to be integrated with the rotating shaft 16 and the upper and lower eccentric portions 42 and 44 will be as described above. The eccentric rotation is performed in the upper and lower compression cylinders 38, 40. By this, the refrigerant gas is drawn through the refrigerant introduction pipe 94 and the first stage suction pressure LP: 4MpaG), and is operated by the rolling fins. After being compressed to a medium pressure (MP1: 8 MPaG), it is discharged from the high-pressure chamber side of the lower 40 to the lower supporting member 56 and then discharged to the closed container via the communication pipe 63 through the communication path 63. ^ In this day, since the middle discharge pipe 1 2 1 points to the gap between the adjacent stator coils 2 8 and 2 8 of the electric 4 4 2 which is wound on the upper side, it can actively move toward the electric Module 14 supplies colder refrigerant gas at a lower temperature in order to suppress electric power. Itch said 'Μ 1 2W ^ member degrees. In addition, medium pressure (MP1) can be formed in the tightly closed state. In addition, the medium-pressure refrigerant gas in the closed container 12 is sucked through the sleeve 144 (the middle discharge pressure is the aforementioned MP1) through the refrigerant introduction pipe 92 and the suction passage 58 formed in the upper support member 54 through the suction hole 161. The low-pressure chamber LR side of the upper compression cylinder 38 (second stage suction pressure MP2). The inhaled medium C / 々 medium rolling body ’is operated by the roller and the fin μ, as shown in FIG. 5

Page] 04 550345 V. Description of the invention (94) Generally, the second stage of compression is performed to form a high-temperature and high-pressure refrigerant gas (the second stage discharge pressure HP: 12MpaG), which is passed from the high-pressure chamber HR side through the discharge hole 1 8 4 and flows into the gas cooler 1 5 4 through the discharge muffler chamber 6 2 formed in the upper support member 5 4 and the refrigerant discharge pipe 9 6. At this time, the temperature of the refrigerant rises to about + 100 ° C. The high-temperature and high-pressure refrigerant gas dissipates heat and heats the hydraulic port in the water storage tank to generate warm water of about + 90 ° C. On the other hand, the refrigerant itself is cooled in the gas cooler 154 and escapes from the gas cooler 154. Then, after the pressure is reduced through the expansion valve 1 56, it is repeatedly flowed into the evaporator 1 5 7 and evaporated, and then sucked into the circulation of the first rotary compression unit 32 by the refrigerant introduction pipe 9 4. As described above, according to the present invention, a sealed container is provided with an electric component and first and second rotary compression components driven by the electric component, and the gas compressed by the first rotary compression component is spouted out of the airtight container. In the container, a rotary compressor that compresses the discharged medium-pressure gas by a second rotary compression unit includes: first and second compression cylinders constituting the first and second rotary compression units, respectively; and An intermediate partition plate for separating the rotary compression components between the compression cylinders; a support member for closing the opening surface of each compression cylinder and having a bearing for the rotary shaft of the electric component; and an oil hole formed in the rotary shaft; An oil supply groove is formed on the surface of the second compression cylinder side of the intermediate partition plate to communicate the oil hole with the low-pressure chamber in the second compression cylinder. Because of itb, the compression cylinder of the second rotary compression assembly Even when the internal pressure is higher than the medium-pressure sealed container, the suction pressure loss during the suction process of the second rotary compression module can be used, and the oil supply groove formed in the intermediate partition plate can reliably Oil is supplied into the compression cylinder.

313808.ptd p. 105 550345

5. Description of the invention (95) By this means, the lubrication of the second rotary compression module can be surely performed, ensuring performance and improving reliability. In particular, the oil supply groove can be formed only by groove-shaped processing of the surface of the second compression cylinder side of the intermediate partition plate. This not only simplifies the structure, but also suppresses an increase in production costs. However, the 'rotary compressor is not limited to the internal ink-jet multi-stage compression rotary compressor in the embodiment, and has the same effect on a rotary compression machine with a single compression cylinder. In the embodiment, the rotary compressor 丨 is used for the refrigerant circuit of the water supply device 153, but it is not limited to this. The present invention is also effective for indoor heating devices. In addition, inventions other than rotary compressors are also effective for other compressors (reciprocating type, scroll type, etc.). Herein, another embodiment of the present invention is a refrigerating apparatus using carbon dioxide as a refrigerant using Figs. 45 to 48. Figs. A refrigerant compressor of a refrigerating apparatus using carbon dioxide as a refrigerant is generally an internal medium-pressure rotary two-stage compressor (hereinafter referred to as a compressor) 5 0 X as shown in FIG. 48. This compressor 50 is provided with a stator 4 1 4 and a rotor 4 1 6 in the upper part of the hermetic container 4 1 2. In addition to the motor mechanism part 418 formed by the =, the lower part is the structure part 4. 1 8 of the shovel Alin »· Compression mechanism unit 6 of the commuter and the two-stage rotary type connected by the rotating shaft 420::: oox The two-stage rotary compression mechanism portion 42 2 A refrigerant introduction pipe 430 is used to press m Taguchi and Tachiguchi from the first pressure reactor on the lower side from the pressure-accumulating cryogen body (not shown) and pressurize it.

550345 ~ ^^^ ______ V. Description of the invention (96)-~ ,,,, and then spit the 4th and 100th refrigerant from the middle discharge tube 4 2 8 to the closed container 4 t and then spit out the refrigerant, borrow The refrigerant introduction pipe 43 2 is introduced to the 21st second compression mechanism section 4 2 6. The introduction pipe 4 3 2 is a sleeve extended in a middle discharge hole provided in the middle part of the dense 3 container 2. The tube 4 2 9 = is then further compressed to a high pressure in the second compression mechanism part 4 2 6 and is supplied by the refrigerant medium pressure refrigerant such as 4 3 cents to a refrigerant circuit of an air conditioner (not shown). In addition, in the compressor 500X, cold is stored in the lower part of the hermetic container 4 12; the east engine oil 4 6 0, and the rotary pressure mechanism unit 4 can be raised by fishing the refrigerator oil 4 6 0. Lubricity and air tightness of the sliding part of 2 2 The lubrication of the sliding part can be extracted by, for example, a pump mechanism provided at the lower end portion of the rotating shaft 4 2 0, and raised by a hollow portion of the rotating shaft 4 2 0, and the body portion provided at the rotating shaft 4 2 0, And the oil supply holes 4 4 6, 4 4 8, 4, 5 0, 4 5 2 of the eccentric portion 4 4 2, 4 4 4 on which the rollers 4 3 8 and 4 4 0 are mounted 4 6 〇 To reach. Since the compressor 5000x having the above-mentioned structure has a structure in which refrigerating machine oil 460 is stored in the closed container 4 12, it is difficult to miniaturize the compressor. Therefore, in a car air conditioner that uses a compressor 5000x of this structure to perform refrigerant compression, it is necessary to install the compressor 5000x and an automobile part such as an engine inside a hood with limited space at the same time. Difficult question. Therefore, it is necessary to provide an air-conditioning device whose structure can avoid the accumulation of cold-headed oil in the compressor or minimize the accumulation of cold; East oil, most of the cold; East oil stored outside the compressor In part, this is a problem to be solved.

3] 3S08.ptd Page 107 550345 V. Description of the invention (97) Therefore, in order to solve the above-mentioned conventional technical problems, the present invention is based on a refrigerant closed circuit formed by a refrigerant pipe connecting at least a compressor, a radiator, and an evaporator. A carbon dioxide-filled refrigerating apparatus provides a first rotary compressor in which an oil separator is interposed in a refrigerant closed circuit and an oil storage portion of the oil separator and a compressor are connected by an oil return pipe; In a rotary compressor, a second rotary compressor in which an oil separator is mounted on a refrigerant circuit on the outlet side of a radiator or an refrigerant circuit on the outlet side of an evaporator. Hereinafter, one embodiment of the present invention will be described in detail with reference to Figs. 45 to 47. In addition, for ease of understanding, parts having the same functions as those described in the drawings or Fig. 48 are marked with the same symbols. The refrigerating device 6 0 0 in this case, as shown in FIG. 4 5, is connected to the compressor 5 0 0, the radiator 5 0 1, the expansion valve 5 0 2, the evaporator 5 0 3, and the oil separator through a refrigerant pipe. 5 04 to form a closed circuit of the refrigerant, and the closed circuit is filled with carbon dioxide as a refrigerant. In addition, an oil storage portion 5 0 4 A installed at the bottom of the oil separator 5 0 4 and a compressor 5 0 0 are connected by an oil return pipe 5 1 2. In other words, as shown in FIG. 4 and FIG. 4, the oil separator 504 is formed to include an oil storage and separation material 5 0 4 B above the oil storage portion on the bottom side, and further above. It also has a plurality of groove plates 5 0 4 C, and the gas refrigerant containing refrigerating machine oil 4 6 0 and entering the container is a refrigerant pipe 5 1 0 connected to the bottom plate, and the oil is attached to the separation material 5 0 4B. The structure which discharges from the refrigerant pipe 5 10 connected to the top plate through the clearance of the baffle plate 5 0 4C arrange | positioned above it. The oil adhesion / separation material 5 0 4 B is formed of a layer of a metal mesh with a small mesh and a material having a gap such as a metal brush. Contains freezer

31380S.ptd Page 108 550345 V. Description of the invention (98) When the gas refrigerant with oil 4 6 0 flowing into the container passes through the gap between the oil adhesion and separation material 5 0 4 B, the gas refrigerant is directly from the refrigerant connected to the top plate. The pipe 5 1 0 is discharged, but the refrigerating machine oil 4 6 〇 with a high density is in conflict with the oil adhesion / separation material 5 0 4 B and gradually decreases the passing speed, and finally adheres and stays at the oil adhesion / separation material 5 〇 4 on B. At this time, since a plurality of floor plates 5 0 4 C are provided above the oil adhesion / separation material 5 04 B, the refrigerant and the refrigerating machine oil 4 discharged from the upper part of the lower part of the oil separator 5 04 are lowered into the oil separator 4 The effect of the flow rate of 60% and the separation effect of the oil adhesion and separation material 504B that separates the refrigerator oil 4600 from the refrigerant are further enhanced.

When the oil adheres to the separation material 50 ° and stays frozen in this part, the amount of oil 460 increases and the mass increases, and the refrigerator oil 4.6 drops from the oil adhesion separation material 504B and accumulates. The oil storage tank 504 A at the bottom. Since the oil return pipe 5 丨 2 is connected to the bottom plate of the oil separator 504, the oil deposits and separation material 5 0 4B drips and accumulates in the oil storage tank 5 0 4A. The engine oil 4 600 will return to the compressor 500 through the oil return pipe 5 12. On the other hand, the compressor 500 has the structure shown in FIG. 47. That is, the compressor 500 is structurally Refrigerant oil 46o is not stored in the inside, but in a hollow rotation with the same structure as the compressor 500x shown in the above-mentioned Fig. 48, the lower end of 4 20 is connected to the terminal part of the oil return pipe 512, and The oil return officer 5 1 2 returns the refrigerating machine oil 4 6 〇 from the oil separator 5 0 4, and is discharged from the oil supply hole without the picture = and is supplied to each sliding portion of the rotary compressor 4 2 2 to form a lift. This part has a structure of lubrication and airtightness, that is, a compressor 500 configured as shown in FIG. Yu Wusu

550345 V. Description of the invention (99 丨 Stores refrigerating machine oil 46 ° in the interior, so it can be equipped with 4 1 8 and rotary type green. She will have electric-w human soil "type & couple mechanism department 42 2 Sealed and closed crying j 0 0 Children's mechanism r East engine oil 4_ Brother electric moon power cooker hidden in a container to learn the compressor 5 00 Figure 2 The two f; the action of the East device 6 0 0. # 由 J Shake the knife, the winter is 454, and the unillustrated narration is wrong. When the stator of the unillustrated f part 41 8 is used, the stator coil is moved to the motor ΛΛν18 ^ &quot; 42 0—the unillustrated part of the eccentric part of the body is set. The roll and eccentric rotation of the shaft are eccentrically rotated (refer to Figure 47). [', But in the cylinder, so' the refrigerant gas from the refrigerant introduction pipe 43o (refrigerant pipe 51o) receives the flute on the lower side] E. Her low pressure, ^ &gt; The compression mechanism part 424 on the side of the human body is compressed to become Zhongbao II, and in the state containing a small amount of mist-shaped cold bed engine oil 46, it is a spit tube 4 2 8 is discharged into the closed container 4 1 2. At this time, 'the middle discharge pipe 4 2 8 is directed to the adjacent stator of the stator wound in, for example, the motor-driven mechanism section 418 above. The gap between the circles can be used to actively supply a relatively low-temperature refrigerant gas in the direction of the motor-drive unit 4 丨 8 to suppress the temperature rise of the motor-drive unit 4 1 8. In addition, the closed container 412 can be formed in the middle. The medium-pressure refrigerant gas containing a small amount of mist-shaped refrigerating machine oil 4 6 0 in the closed container 4 1 2 is compressed into a mist-containing shape by the second compression mechanism portion 4 2 6 on the upper side through the refrigerant introduction pipe 4 3 2. After the high-temperature and high-pressure refrigerant gas of the refrigerating machine oil 4,600, it flows into the radiator 501 through the refrigerant discharge pipe 434 (refrigerant pipe 5 1 0). At this time, the temperature of the refrigerant rises to about 100 ° C, including Refrigerator oil 4 6 0

3808.ptd Page 110 550345 V. Description of the invention (100) -------- The high-temperature and high-pressure refrigerant gas after cooling and cooling forms a supercritical state containing refrigerator oil 4 6 0 and overflows from the radiator 5 〇 丨. Yiyi 1 moxibustion = expansion valve 5 0 2 After decompression, it flows into the evaporator '5 0 3 and is steamed. When the preparation of Guiyi 50 3 evaporates, if the freezing device 600 is used for car air-conditioning, the refrigerant will cool the air in the car by the surrounding vaporization heat. In addition, in the evaporator 503, the refrigerant having a low Buddha point is selectively evaporated, and the refrigerator oil 460 having a higher boiling point than the refrigerant hardly evaporates. in? The refrigerant vapor evaporated from the Taifa 503 and the refrigerator oil 46 ° flow into the oil separation benefit 504 ′, and the refrigerator oil 46 ° is separated from the refrigerant by the aforementioned mechanism. I: Ϊ ί ^ The device 5, 04 separates the cold; The gas refrigerant of Toki Oil 46 0 is repeatedly sucked into the two compressors (refrigerant pipe 5 1 0) and sucked into the first compression mechanism section 424 J:: The cold of the liquid separated from the cold coal in the oil_separator 414 , ',' Repeat the cycle from the oil return pipe 5 1 2 to the compressor 5 0 0. In addition, the second oil separator 504 can also be disposed on the outlet side of the radiator 50i. In other words, the carbon dioxide system of the refrigerant radiated by the radiator 504 is in a supercritical state, and the liquid is not completely formed. On the other hand, since the refrigeration oil 460 has completely formed a liquid, even if the oil separator 504 is set at the outlet side of the heat β 50 1, the refrigerant oil of the gas refrigerant toilet can be made by the aforementioned mechanism. 460 is separated, and the separated cold beam engine oil 46 is returned to the night machine 500. In addition, in terms of the compressor 500, the rotary compressor 422 may be a compressor-type compressor, or a high-media radon gas compressed by a compression mechanism unit may be ejected into the closed container 4 1 2 and ejected. Out to the closed container 7 550345 V. Description of the invention (101) 4 1 2 The high-pressure refrigerant inside the container is discharged from a refrigerant discharge pipe provided above the closed container 1 to a compressor outside the machine. As described above, the present invention is a refrigeration device filled with carbon dioxide in a refrigerant closed circuit formed by connecting at least a compressor, a radiator, and an evaporator through a refrigerant pipe, and an oil separator interposed in the refrigerant closed circuit. The refrigerating device that connects the oil storage part of the oil separator and the compressor through the oil return pipe is also a type of refrigeration in which the oil separator is installed in the refrigerant circuit on the outlet side of the radiator or the refrigerant circuit on the outlet side of the evaporator Device, so there is no need to store refrigerating machine oil in the compressor. As a result, the size of the closed container containing the compression mechanism portion and the electric mechanism portion can be made smaller than the size of the compressor containing the refrigerating machine oil, so as to reduce the size of the compressor. Therefore, when this compressor is used as a compressor for automobile air conditioners, it is easy to install the compressor in the interior of a car cover with a limited volume at the same time as the engine and other automobile parts.

313808.Ptd Page 112 550345 Brief description of drawings [Simplified description of drawings] Fig. 1 is a longitudinal sectional view of a rotary compressor according to an embodiment of the present invention. Figure 2 is a front view of the rotary compressor of Figure 1. Figure 3 is a side view of the rotary compressor of Figure 1. Fig. 4 is another longitudinal sectional view of the rotary compressor of Fig. 1. Fig. 5 is another longitudinal sectional view of the rotary compressor of Fig. 1. Fig. 6 is a plan sectional view of the electric component part of the rotary compressor of Fig. 1; Fig. 7 is an enlarged sectional view of a rotary compression mechanism portion of the rotary compressor of Fig. 1; Fig. 8 is an enlarged sectional view of a fin portion of a second rotary compression unit of the rotary compressor of Fig. 1; Fig. 9 is a sectional view of the lower supporting member and the lower casing of the rotary compressor of Fig. 1; Fig. 10 is a bottom view of the lower supporting member of the rotary compressor of Fig. 1; Figure 11 is a top view of the upper support member and the upper casing of the rotary compressor of Figure 1. Fig. 12 is a sectional view of the upper support member and the upper casing of the rotary compressor of Fig. 1; Figure 13 is a top view of the intermediate partition plate of the rotary compressor of Figure 1. Fig. 14 is a sectional view taken along line A-A in Fig. 13.

3] 3808.ptd Page 113 550345 Brief description of the drawings Figure 15 is a top view of the compression cylinder above the rotary compressor of Figure 1. Fig. 16 is an explanatory diagram of pressure fluctuations on the suction side of the compression cylinder of the rotary compressor of Fig. 1; Fig. 17 is a cross-sectional view illustrating the shape of a connecting portion of a rotary shaft of the rotary compressor of Fig. 1; Fig. 18 is a refrigerant circuit diagram of a water supply device to which the rotary compressor of Fig. 1 is applied. Fig. 19 is an enlarged sectional view of another embodiment of the fin portion of the second rotary compression unit of the rotary compressor of Fig. 1. Fig. 20 is a sectional view of a supporting member ¥ and a casing of a second rotary compression unit of a conventional rotary compressor. Fig. 21 is a cross-sectional view illustrating a state in which a coupler and a connector of a pipe for an airtight test are connected to a sleeve of the rotary compressor shown in Fig. 1. Fig. 22 is a diagram showing a relationship between a sectional view of a middle end portion of the rotary compressor of Fig. 1 and a deformation amount of an end cover. Policy: ^^ 3 The relationship between the cross section of the middle end of the conventional rotary compressor and the deformation of the end cap. Fig. 24 is an enlarged sectional view of the middle end portion of the rotary compressor of Fig. 1; Figure 25 is an enlarged sectional view of a rotary compressor when a terminal with a thin mounting portion is installed. Fig. 26 is a longitudinal section of a rotary compressor according to another embodiment of the present invention

313S08.ptd p. 550345 Schematic description of the view. Fig. 27 is a longitudinal sectional view of a rotary compressor according to another embodiment of the present invention. Fig. 28 is an explanatory diagram illustrating the installation sequence of the casing of the rotary compressor of Fig. 1. Fig. 29 is a diagram for explaining a method of processing a suction hole of a second rotary compression unit of the rotary compressor of Fig. 1; Fig. 30 is an explanatory diagram of a processing method of a discharge hole of a second rotary compression unit of the rotary compressor of Fig. 1; FIG. 31 is an explanatory diagram of a processing method of a suction hole of a rotary compression component of a conventional rotary compressor. Figures 3 and 2 are also explanatory diagrams of the processing method of the discharge hole of the rotary compression assembly of the conventional rotary compressor. Fig. 33 is a refrigerant circuit diagram of a water supply device according to another embodiment of the present invention. Fig. 34 is a refrigerant circuit diagram of a water supply device to which another embodiment of the present invention is applied. Fig. 35 is a top view of a supporting member on an upper portion of a rotary compressor according to another embodiment of the present invention. Fig. 36 is a sectional view of the upper support member and the upper cover of Fig. 35. Fig. 37 is a longitudinal sectional view of a rotary compressor according to another embodiment of the present invention. Fig. 38 is another longitudinal sectional view of the rotary compressor of Fig. 37.

313S〇8.ptd Page 115 550345 The diagram is simple and clear. Figure 39 is a plan sectional view of the electric components of the rotary compressor shown in Figure 37 Fig. 40 is a longitudinal sectional view of a rotary compressor according to another embodiment of the present invention. Fig. 41 is a sectional view of an intermediate partition plate of the rotary compressor of Fig. 40. Fig. 42 is a top view of the compression cylinder 38 above the rotary compressor of Fig. 40. Fig. 43 is an explanatory diagram of pressure fluctuations in a compression cylinder above the rotary compressor of Fig. 40. The fourth marriage (a) to (1) are explanatory diagrams of the refrigerant suction-compression stroke of the compression cylinder above the rotary compressor of FIG. 40. Fig. 45 is a diagram illustrating the structure of another refrigerating apparatus of the present invention. Fig. 46 is a diagram illustrating the structure of an oil separator used in the refrigerating device of Fig. 45. Fig. 47 is a diagram illustrating the structure of a compressor used in the refrigerating device of Fig. 45. Figures 4 and 8 are explanatory diagrams of the structure of a compressor used in a conventional refrigeration system. [Explanation of component symbols] 10 Rotary compressor 12, 412 Closed container 12A Container 'body 12B End cap 12 C segment 12 D Mounting part 14 Electric component 16, 4 2 0 Rotary shaft

313808.ptd Page 116 550345 Brief description of drawings 18, 422 Rotary compression mechanism section 20 Terminal 20A Round glass section 20B Mounting section 22, 414 Stator 24 ^ 416 Rotor 26 &gt; 30 Laminate 28 Stator coil 32 No. 1 Rotary compression unit 34 Second rotary compression unit 36 Intermediate partition plate 38 ^ 40 Compression cylinder 39 &gt; 41 Discharge passage 42 Upper eccentric portion 44 Lower eccentric portion 46, 48-438, 440 Roller 50 Foil 54 Upper support member 56 Lower support Member 56A bearing 58 ^ 60 suction passage 62 &gt; 64 discharge muffler chambers 62A, 62B, 62C, 62D division chamber 62E passage 63 communication path 66 upper casing 68 T section casing 70 guide groove 70A receiving section 76 spring 78 &gt; 129 Main bolt 80 Oil hole 82 &83; 84 Oil supply hole 90 Connection P 92, 94, 430, 432 Refrigerant introduction pipe 96 Refrigerant discharge pipe 121 Middle discharge pipe 12 2, 1 2 3 Bushing 126 ^ 138 0 ring 1 2 7, 1, 2 8 Discharge valve 131 Through hole 132 Seal 133, 134 Communication hole

313808.ptd Page 117 550345

Brief description of the drawing 136 Auxiliary bolt 137 '138 Plunger 139 Electrical terminal 14 142, ί 43 &gt; 144 Sleeve 146 Pressure accumulator 147 ~ 148 Bracket 151 Flange 152 Screw groove 153 Water supply device 154 Gas cooler 156 Expansion valve 157 Evaporator 158 Defrosting tube 159 Solenoid valve 1 61 &gt; 1 62 Suction hole 171 Coupler 172 Fastening section 173 Connector 174, 1 76 Piping 177 Operating section 182 Tape 183 Screw 184 Discharge hole 186 ~ 187 Hole 190 Through hole 191 Oil supply groove 192 Recessed portion 193 Flat surface 194 Insertion portion 196 Abutment portion 197 Projection portion 440, 442 Eccentric portion 446, 4 48, 45 0 &gt; 452 Oil supply hole 454 Power terminal 460 Refrigerating oil 500 Compressor 501 Radiator 502 Expansion valve 503 Evaporator 504 Oil separator 5 04A Oil storage section 5 0 4B Separator 5 0 4C Baffle plate 510 Refrigerant pipe 512 Return pipe 313S08.Ptd Page 118 550345 Brief description of the drawing 6 0 0 Freezer unit mm 313808.ptd Page 119

Claims (1)

550345 6. Scope of patent application 1. A rotary compressor is a rotary compressor constituted by installing an electric component in a closed container and a rotary compression component driven by the electric component. There are: a roller fitted to an eccentric portion of the compression cylinder constituting the rotary compression assembly and an eccentric portion formed on a rotation shaft of the electric component, and eccentrically rotating in the compression cylinder; abutting against the roller to place the compression cylinder The inner partition is a wing plate on the low-pressure chamber side and a high-pressure chamber side; a spring member for constantly urging the wing toward the roller side; formed in the compression cylinder and opening on the wing side and the closed container side A receiving portion of the spring member; a plunger located on the sealed container side of the spring member and inserted into the receiving portion with a clearance fit; and a plunger mounted on a peripheral surface of the plunger to seal the plunger from the aforementioned At the same time, the zero ring between the accommodating parts and the interval between the compression cylinder and the closed container are set to be smaller than the zero ring to reach the plunger. The distance to the end of the closed container side. 2. A rotary compressor comprising an electric component in a closed container, and first and second rotary compression components driven by the electric component, and a gas compressed by the first rotary compression component. A rotary compressor that discharges the medium-pressure gas discharged from the sealed container and compresses the discharged medium-pressure gas by the second rotary compression unit is characterized in that the rotary compressor is fitted into the second rotary compression unit to form the rotary compressor. A compression cylinder and an eccentric part formed on the rotation axis of the electric component, and an eccentric rotation roller in the compression cylinder; abutting the roller to separate the compression cylinder into a low pressure chamber side and a high pressure chamber side 313808.ptd Page 120 550345 VI. Patent application wing blades; a spring-loaded member for constantly springing the wing blades towards the roller; formed in the compression cylinder and opening on the side of the wing and the side of the closed container A receiving portion of the spring member; a plunger located on the closed container side of the spring member and inserted into the receiving portion with a clearance fit; and a plunger mounted on a peripheral surface of the plunger to seal the plunger from the receiving portion At the same time, the distance between the o-ring and the hermetic container is set to be smaller than the distance between the o-ring and the end of the hermetic container side of the plunger. 3. —A rotary compressor is a rotary compressor which is constituted by installing an electric component in a closed container and a rotary compression component driven by the electric component, and is characterized in that: A compression cylinder constituting the rotary compression assembly and an eccentric part formed on a rotary shaft of the electric assembly to perform eccentric rotation in the compression cylinder; while closing an opening surface of the compression cylinder, a bearing for the rotary shaft is provided. A support member that abuts the roller to separate the compression cylinder from the low-pressure chamber side to the high-pressure chamber side; a spring member that is used to constantly spring the fin toward the roller side; formed in the foregoing The compression cylinder is opened in the housing portion of the spring member on the blade side and the closed container side; and the plunger located in the closed container side of the spring member is pressed into and fixed in the housing portion, and is connected with In the aforementioned supporting member of a portion corresponding to the plunger, a recessed portion recessed in a direction away from the aforementioned compression cylinder is formed. Rotary compressor comprising an electric-based groups within the sealed container 313S08.Ptd Page 12〗 550345 6. The scope of patent application and the first and second rotary compression components driven by the electric component can spit out the gas compressed by the first rotary compression component from the aforementioned airtight. A rotary compressor that compresses the discharged medium-pressure gas in the container by the second rotary compression unit is provided with a compression cylinder fitted into the second rotary compression unit and A roller formed at an eccentric portion of the rotation axis of the electric component and rotating eccentrically in the compression cylinder; abutting against the roller to separate the inside of the compression cylinder into wings of a low pressure chamber side and a high pressure chamber side; While closing the opening surface of the compression cylinder, a support member having a bearing of the rotation shaft; a spring member for constantly urging the fin toward the roller side; formed in the compression cylinder and opening on the fin side And a receiving portion of the spring member on the side of the hermetic container; and a portion of the hermetic container on the side of the spring member, which is press-fitted and fixed to Plunger within said housing portion, while, at the Department of the plunger with the corresponding portion of the support member 'Yi back portion is formed toward the direction away from the recessed compression cylinder. 5. For the rotary compressor of the first, second, third, or fourth scope of the patent application, wherein the aforementioned rotary compression assembly is to compress C0 into a refrigerant. 6. A rotary compressor is provided with an electric component in a sealed container, and first and second rotary compression components driven by the electric component, and can compress the gas compressed by the first rotary compression component. A rotary compressor that discharges the medium-pressure gas discharged from the hermetically sealed container by the second rotary compression unit, 313808.pld Page 122 550345 6. The scope of patent application is to have: the compression cylinders respectively constituting the aforementioned rotary compression components; the intermediate partition plate which is located between the compression cylinders and used to separate the aforementioned rotary compression components; An opening surface of each of the compression cylinders, and a support member having a bearing of the rotary shaft; and an oil hole formed in the rotary shaft, and an oil hole is formed in the intermediate partition plate to communicate the oil hole with the second Rotate the oil supply path on the suction side of the compression unit. 7. The rotary compressor according to item 6 of the patent application, wherein a through hole is formed in the intermediate partition plate to communicate the outer peripheral surface and the inner peripheral surface on the side of the rotary shaft to constitute the aforementioned oil supply. And the outer peripheral surface side of the through-hole is sealed, and a communication hole that communicates the through-hole and the suction side is passed through a compression cylinder for forming the second rotary compression unit. 8. A rotary compressor is provided with an electric component in a sealed container, and first and second rotary compression components driven by the electric component, and can compress the C of the first rotary compression component. A rotary compressor that discharges medium gas out of the sealed container and compresses the discharged medium-pressure refrigerant gas through the second rotary compression unit is characterized by comprising: a second rotary compression unit The compression cylinder; while supporting the opening surface of the compression cylinder, a support member having a bearing erected at the central portion of the rotary shaft; the support member formed outside the bearing is exposed to the inside of the compression cylinder Anechoic chamber; and a cover whose peripheral portion is fixed to the support member by bolts and is used to close the opening of the anechoic chamber. 313808.ptd Page 123 550345 6. Scope of application. At the same time, a cymbal ring is sandwiched between the cover and the aforesaid branch member, and a zero ring is provided between the inner peripheral end surface of the cover and the outer surface of the bearing. 9. A rotary compressor is provided with an electric component in a sealed container, and first and second rotary compression members driven by the electric component, which can compress C0 compressed by the first rotary compression component. The rotary compressor which discharges the medium gas out of the sealed container and compresses the discharged medium-pressure refrigerant gas by the second rotary compression unit is characterized by comprising: a rotary compressor which constitutes the second rotary compression unit; A compression cylinder; a support member having a bearing erected at the center of the rotary shaft while closing the opening surface of the electric component of the compression cylinder; the support member formed outside the bearing and connected to the interior of the compression cylinder A venting muffler chamber; and a cover installed on the support member and used to close the opening of the muffler chamber. At the same time, the thickness of the cover is set to be greater than 2 mm and less than 10 mm 〇1 0. For example, the rotary compressor of the ninth scope of the patent application, wherein the thickness of the aforementioned casing is set to 6 mm. 1 1. The rotary compressor according to item 9 or 10 of the scope of patent application, wherein the peripheral portion of the cover is fixed to the support member by bolts, and is sandwiched between the cover and the support member. A washer is provided, and a zero ring is provided between the inner peripheral end surface of the cover and the outer surface of the bearing. 1 2. A rotary compressor is provided with an electric component in a sealed container, and first and second rotary compression components driven by the electric component, and can compress C of the first rotary compression component. 0 Refrigerant gas 313808.ptd Page 124 550345 6. The scope of the patent application is based on the front part of the dispenser, its characteristics are compressed red; the central odor has the above-mentioned spit-out before the outer side of the bearing to occlude each by a plurality of and each cover The shell is connected to each of the foregoing 1 · If applying for a patent: the shape of the Qiu Qiu] roller; abutted to the closed container with T% dust side flaps to contain its guide groove, and then obtained The compressed refrigerant gas f ^ is described as the second rotary compression group is provided with: a supporting member constituting the above-mentioned two types of compression, respectively, each of the compression k opening and closing the rotation axis of the compression component of the bearing; A support member, and the disks A, and v are formed in the axe sound chamber; and the Sj pressure red interior is connected to the above-mentioned spit silencer; the support member is a cover of the open section, and at the same time, The main bolt is connected to each beginning τ, and the auxiliary cylinder, the compression cylinder, and each supporting member are located outside the above-mentioned Uiwang bolt of each supporting member. The rotary compressor of the range 2 to 12 items includes an eccentric portion formed on a rotating shaft of the electric component and an eccentric rotation in a compression cylinder of the 2-rotation compression component. The roller is used to divide the inside of the compression cylinder into a low pressure. Side chamber fins; formed in the aforementioned compression cylinder, the guide grooves in the aforementioned, meanwhile, the aforementioned auxiliary bolts are located at the front 0 14 · The rotary compressor is equipped with an electric component 疒 ^ in a closed container, and the first and second rotary pressures driven by the electric component = ΐ can compress the aforementioned first and second rotary compression components. A rotary compressor with a gas compressed by a one-screw and condensed component is characterized by ^ f 有 ^ • The second compression cylinder used to form the first and second rotary compression components; and fitted in a 1-8 0 degree phase difference is formed before Page 125 550345 6. The first and second eccentric parts of the rotating shaft of the electric component described in the scope of the patent application, and the first and second rollers that rotate eccentrically in the aforementioned compression cylinders, meanwhile, will connect the two eccentricities. The cross-sectional shape of the connecting portion is formed to have a thickness in a direction orthogonal to the current eccentric direction greater than the thickness in the eccentric direction of the two eccentric portions. The second eccentric portion has an arc shape at the same center, and the side surface on the eccentric direction side of the second eccentric portion has an arc shape at the same center as the first eccentric portion. 1 5. A type of hermetic compressor, which is provided with an electric component in a sealed container and a compression component driven by the electric component. The C0 refrigerant sucked through the refrigerant introduction pipe can be compressed and discharged by the aforementioned compression component. A hermetic compressor which is discharged from the refrigerant discharge pipe to the outside in the hermetic container is characterized by having a sleeve provided in the hermetic container and connected to the refrigerant introduction pipe and the refrigerant discharge pipe respectively, and Around the outer surface of the sleeve, a flange portion for coupling with a coupling for piping is formed. 1 6. A type of hermetic compressor, which is provided with an electric component in a sealed container and a compression component driven by the electric component. The CO2 medium sucked in by the refrigerant introduction pipe can be compressed and discharged by the aforementioned compression component. A hermetic compressor which is discharged from the refrigerant discharge pipe to the outside in the hermetic container is characterized by having a sleeve provided in the hermetic container and connected to the refrigerant introduction pipe and the refrigerant discharge pipe respectively, and Around the outer surface of the sleeve, a threaded groove for connecting a pipe is formed. 3l3S08.ptd 苐] Page 550345 6. Application for patent scope 1 7. — A hermetic compressor, which is equipped with an electric component in a hermetic container, and a compression component driven by the electric component. The refrigerant can be introduced into the tube. The sucked C0 medium is compressed by the aforementioned compression component and discharged from the sealed container, and then is discharged from the refrigerant discharge pipe to the outside of the hermetic compressor, which is characterized by being provided in the sealed container and connected to the aforementioned A plurality of sleeves of the refrigerant introduction pipe and the refrigerant discharge pipe, and at the same time, a flange portion for fastening the coupling for connecting the piping is formed around the outer surface of the one of the adjacent sleeves, and the other is Around the outer surface of the sleeve, a thread groove is formed to connect the pipe. 1 8. A compressor is a compressor provided with an electric component and a compression component driven by the electric component in a container, which is characterized by having a container-side bracket provided on the side of the container; And the pressure accumulator-side bracket on which the pressure accumulator is mounted, at the same time, the pressure accumulator-side bracket is fixed to the container-side bracket, and the pressure accumulator is interposed through the two brackets Installed in the aforementioned container. 19. The compressor according to item 18 of the scope of patent application, wherein the pressure accumulator side bracket is installed at or near the center or center of gravity of the pressure accumulator. 2 0. A compressor is provided in a closed container with an electric component and first and second compression components driven by the electric component; a refrigerant pipe for introducing refrigerant into the first compression component; The medium-pressure refrigerant gas compressed by the compression module is introduced into the refrigerant pipe of the second compression module; and the refrigerant discharged from the high-pressure gas compressed by the second compression module is discharged. 313808.ptd Page 127 550345 6. The scope of patent application is characterized in that the refrigerant pipes of the first and second compression components are connected to the closed container at adjacent positions, and the closed container faces the opposite direction. Orientation configuration. 2 1. The compressor according to item 20 of the scope of patent application, wherein the refrigerant pipe of the first compression module is connected to the closed container at a position below the refrigerant pipe of the second compression module, and is connected to each refrigerant pipe. An accumulator is arranged at a connection position with the hermetic container, and the accumulator is connected to a refrigerant pipe that introduces a refrigerant into the first compression module. 2 2. A compressor comprising an electric component in a closed container and first and second compression components driven by the electric component. The refrigerant gas sucked by the first refrigerant introduction pipe can be passed through A compressor that compresses the first compression module and spit it out of the hermetic container, and then sucks the discharged medium-pressure refrigerant gas through a second refrigerant introduction pipe located outside the hermetic container and compresses by the second compression module. It is characterized in that the refrigerant pipes of the first and second compression modules are connected to the hermetically sealed container at adjacent positions, and the hermetically sealed container is arranged around the opposite direction. 2 3. The compressor according to item 22 of the scope of patent application, wherein the first refrigerant introduction pipe is connected to the closed container at a position below the second refrigerant introduction pipe, and each refrigerant introduction pipe is connected to the foregoing Above the connection position of the hermetic container, an accumulator is arranged, and the accumulator is connected to the first refrigerant introduction pipe. 2 4. —A hermetic compressor is provided with an electric component in a hermetic container, and a compression component driven by the electric component. 313808.ptd Page 128 550345 6. Application scope of the patent The compressor compresses the refrigerant and spit out the compressor in the aforementioned closed container. It is characterized by having a terminal installed on the end cover of the aforementioned closed container, and by squeezing A step with a predetermined curvature is formed on the aforementioned end cap pressed around the terminal. 25. The hermetic compressor according to item 24 of the scope of patent application, wherein the end cap is slightly bowl-shaped, and the step difference is formed to be axisymmetric about the center axis of the end cap, and the terminal is It is installed in the center of the end cap. 26. The hermetic compressor according to item 24 or item 25 of the scope of patent application, wherein the aforementioned compression assembly compresses CO ammonia into a refrigerant. 2 7. —A hermetic compressor is provided with an electric component and a compression component driven by the electric component in a hermetic container, and the compression medium is compressed by the compression component and spit out of the aforementioned hermetic container. The hermetic compressor is characterized by having a terminal installed in the hermetic container, and the terminal has a circular glass portion penetrating and installing an electrical terminal; and is formed around the glass portion and is fixed by welding. The flange-shaped metal mounting portion in the peripheral portion of the mounting hole of the hermetic container has a thickness dimension of 2. 4 ± 0 · 5mm. 2 8. —A hermetic compressor includes an electric component in a hermetic container, and first and second compression components driven by the electric component, and C which is compressed by the first rotary compression component. 0 Refrigerant gas is discharged from the hermetically sealed container, and is then compressed by the second rotary compression unit to discharge the medium-pressure refrigerant gas. 313S08.ptd Page 129 550345 6. The scope of the patent application: The terminal in the aforementioned sealed container, meanwhile, the terminal has a circular glass portion that penetrates and is installed with electrical terminals; and is formed around the glass portion, and is fixed by welding. The flange-shaped metal mounting portion around the mounting hole of the sealed container, and the thickness dimension of the mounting portion is set in a range of 2.4 ± 0.5 mm. 2 9. A rotary compressor is a compressor configured with an electric component and a compression component driven by the electric component in a closed container, and is characterized in that it is provided with the following components: A single or a plurality of compression cylinders of the module; a first support member having a bearing of a rotating shaft of the electric module while closing an open surface on the opposite side of the electric module of the compression cylinder; At the same time as the opening surface of the module, a second support member having the bearing of the rotation shaft is provided, and a bearing interposed between the bearing and the rotating vehicle is provided in one of the bearings of the first and second support members. Carbon bushing. 30. The rotary compressor according to item 29 of the patent application scope, wherein the bushing is provided in a bearing of the first support member. 3 1. A rotary compressor comprising an electric component in a hermetic container, and first and second compression components driven by the electric component, and a gas compressed by the first rotary compression component The medium pressure gas discharged from the closed container is compressed by the second rotary compression unit, and is characterized by first and second compressions for constituting the first and second rotary compression units, respectively. Cylinder; while closing the opening surface of the first compression cylinder, the rotation of the electric component is provided. 313808.ptd page 130 550345 6. The first supporting member of the bearing of the rotating shaft for patent application; and the second supporting member of the bearing of the rotating shaft is closed while the opening surface of the second compression cylinder is closed. A carbon bushing is provided in one of the bearings of the first and second support members between the bearing and the rotary shaft. 32. The rotary compressor according to item 31 of the scope of patent application, wherein the bushing is provided in a bearing of the second support member. 3 3. If the rotary compressor of item 29, item 30, item 31, or item 32 of the scope of patent application is applied, the aforementioned rotary compression assembly is to compress C0 into a refrigerant. 3 4. —A hermetic compressor is provided with an electric component and a compression component driven by the electric component in a sealed container, and the refrigerant sucked in by the refrigerant introduction pipe is compressed by the compression component, and then the refrigerant is used. The hermetic compressor that also discharges pipes is characterized in that it includes a sleeve corresponding to the through hole formed on the curved surface of the hermetic container and connected to the refrigerant introduction pipe or the refrigerant discharge pipe. While forming a flat surface on the outside of the closed container around the through hole, an insertion portion inserted into the through hole and an abutting portion located around the through hole and abutting the flat surface of the closed container are formed on the sleeve. The contact portion of the tube and the flat surface of the sealed container are fixed by injection welding. 35. The hermetic compressor according to item 34 of the patent application scope, wherein the flat surface is formed by recessing around the through hole. 3 6. —A rotary compressor with electric components in a closed container 313808.ptd Page 131 550345 6. The scope of the patent application, and the rotary compressor constituted by the compression component driven by the electric component, is characterized by being fitted with: A compression cylinder and an eccentric portion formed on the rotation axis of the electric component, and a roller eccentrically rotating in the compression cylinder; a support member having a bearing of the rotation shaft while closing the opening surface of the compression cylinder; The suction passage of the support member; and an edge portion of the suction passage side of the suction hole, which is formed obliquely in the compression cylinder and corresponds to the suction passage of the support member and communicates the suction passage with the suction in the compression cylinder. , Made into a semi-arc shape. 3 7. A method of manufacturing a rotary compressor, which is a method of manufacturing a compression module in which an electric component is provided in a hermetic container and driven by the electric component, and is provided with a fitting fitting to constitute the compressor. A compression cylinder that rotates the compression assembly and an eccentric part formed on a rotation shaft of the electric component, and an eccentric rotation roller in the compression cylinder; while closing the opening surface of the compression cylinder, it has the support of the bearing of the rotation shaft A rotary compressor formed on the support member; and a rotary compressor which is formed obliquely on the compression cylinder and communicates the suction path with a suction hole in the compression cylinder corresponding to the suction path of the support member, characterized in that: · The machining of the suction hole is performed by holding an end mill with a flat front end against the compression cylinder and moving it in a direction inclined with the compression cylinder while maintaining the vertical state. 3 8. —A method for manufacturing a rotary compressor, characterized in that it is in a closed container 313808.ptd Page 132 550345 6. The scope of the patent application is provided with an electric component and a compression component driven by the electric component, and is provided with a compression cylinder fitted in the rotary compression component and A roller formed at an eccentric portion of a rotation shaft of the electric component to perform eccentric rotation in the compression cylinder; a support member having a bearing of the rotation shaft while closing an opening surface of the compression cylinder; formed at the support member In the rotary compressor formed obliquely in the compression cylinder and corresponding to the discharge passage of the support member, the discharge passage communicates with a device such as a discharge hole in the compression cylinder. The front end is mountain-shaped. A part of the end mill abuts vertically on the aforementioned compression cylinder to perform the aforementioned injection hole processing. 3 9. — A defrosting device for a refrigerant circuit including an electric component in a closed container, and first and second compression components driven by the electric component, and the first The refrigerant gas compressed by the compression component is discharged from the closed container, and then the second compression component is used to compress the medium-pressure refrigerant gas discharged from the compressor; and the refrigerant gas discharged from the second compression component of the compressor is discharged. A gas cooler; a pressure reducing device connected to the outlet side of the gas cooler; and an evaporator and the like connected to the outlet side of the pressure reducing device, and the refrigerant generated by the evaporator is compressed by the first compression module It is characterized by comprising: a defrosting circuit that supplies the refrigerant discharged from the first compression module to the evaporator without reducing the pressure; and a flow path control device for controlling the refrigerant flow of the defrosting circuit. . 40. If the defrosting device of the refrigerant circuit of item 39 in the scope of patent application, wherein 313808.ptd Page 133 550345 6. The scope of the patent application. Each of the aforementioned compression components compresses the co-helium gas into a refrigerant. 41. If the defrosting device of the refrigerant circuit of item 39 or item 40 of the scope of patent application, the warm water is generated by the heat radiation of the gas cooler. 4 2. A rotary compressor provided with an electric component in a hermetic container and first and second compression components driven by the electric component, and the refrigerant gas compressed by the first compression component is discharged. A rotary compressor that compresses the discharged medium-pressure refrigerant gas in the closed container by the second compression unit is further provided with a first compressor configured to constitute the first and second rotary compression modules, respectively. And the second compression red; an intermediate partition plate between the compression cylinders and used to separate the aforementioned rotary compression components; the opening surfaces of the aforementioned compression cylinders are closed, and the bearing of the rotary shaft of the aforementioned electric component is respectively A support member; and an oil hole formed in the rotation shaft, and an oil supply groove for communicating the oil hole with a low-pressure chamber in the second compression cylinder is formed in the second compression cylinder of the intermediate partition plate. On the side. 4 3. — A refrigeration device is a cold east device filled with carbon dioxide in a refrigerant closed circuit formed by at least a compressor tube, a radiator, and an evaporator connected to the refrigerant tube, characterized in that an oil separator is interposed in the refrigerant In the closed circuit, the oil storage part of the oil separator and the compressor are connected through an oil return pipe. 4 4. The refrigerating device according to item 43 of the scope of patent application, wherein the oil separator is provided in the refrigerant circuit at the outlet side of the radiator or the refrigerant circuit at the outlet side of the evaporator. 313808.ptd Page 134