JP2021095858A - Compressor, freezer refrigerator and air-conditioning device - Google Patents

Abstract

To provide a device capable of easily adjusting an oil level of a freezer oil without using a partition plate having holes with different sizes and numbers.SOLUTION: A compressor comprises: a container; a compression mechanism which is stored in the container and compresses fluid; and a partition plate which partitions a space inside the container into a first space and a second space. The compression mechanism is arranged in the first space and discharges the compressed fluid into the first space. The partition plate has: a first passage to discharge the compressed fluid from the first space to an outside through the second space; a second passage which enables oil to be supplied to the compression mechanism to be transferred between the first space and the second space; and a closing section which can adjust an area of the first passage by changing a closing rate thereof.SELECTED DRAWING: Figure 7

Description

The present invention relates to a compressor for compressing a fluid, a refrigerating / refrigerating device, and an air conditioner.

In refrigerating and refrigerating equipment, a horizontal (horizontal) rotary compressor or scroll compressor is used for the compressor installed in the lower part in order to take up a large space in the upper freezing / refrigerating room. Since these compressors have sliding portions, bearings, and the like, refrigerating machine oil is supplied in order to reduce friction during operation.

In the horizontal compressor, the inside of the closed container is divided into a first space having a compression mechanism and an electric motor by a partition plate and a second space in which the refrigerating machine oil is stored, and a passage for the refrigerating machine oil is provided under the partition plate. There is a compressor provided with a passage for a refrigerant gas at the upper part (see, for example, Patent Document 1).

In such a compressor, a differential pressure is generated between the first space and the second space by the passage of the refrigerant gas, and the refrigerating machine oil flows from the first space to the second space through the oil passage. Therefore, an oil level difference is generated between the first space and the second space so that the refrigerating machine oil can be appropriately supplied to the compression mechanism or the like while reducing the amount of stored oil.

Japanese Unexamined Patent Publication No. 5-263778

However, since the holes that serve as the passages for the refrigerant gas are formed to have a constant size and number, if the circulation amount of the refrigerant differs due to the difference in the pressing amount or the refrigerant, a partition plate having different sizes and numbers may be used. There was a problem that the oil level could not be adjusted properly if it was not used.

Therefore, it is desired to provide a compressor, a refrigerating / cooling device, and an air conditioner that can easily adjust the height of the refrigerating machine oil level without using a partition plate having different sizes and numbers of holes. It is rare.

The present invention is a compressor that compresses a fluid in view of the above problems.
With the container
A compression mechanism that is stored in a container and compresses the fluid,
Includes a partition plate that divides the inside of the container into a first space and a second space.
The compression mechanism is arranged in the first space and discharges the compressed fluid into the first space.
The partition plate has a first passage for discharging the compressed fluid from the first space to the outside through the second space, and the oil supplied to the compression mechanism in the first space and the second space. A compressor is provided that has a second passage that allows movement between them, and a closure that allows the area of the first passage to be adjusted by varying the closure ratio of the first passage.

According to the present invention, it is possible to easily adjust the height of the oil level of the refrigerating machine oil without using partition plates having different sizes and numbers of holes.

The figure which showed the configuration example of the freezing / refrigerating equipment. The figure explaining the refrigeration cycle. The figure which showed the configuration example of a compressor. The figure explaining the principle of refrigerant compression. The figure explaining the oil level difference. The figure which showed an example of the conventional partition plate. The figure which showed the 1st example of the partition plate used for the compressor which concerns on this embodiment. The figure which showed the 2nd example of the partition plate used for the compressor which concerns on this embodiment. The figure which showed the 3rd example of the partition plate used for the compressor which concerns on this embodiment. The figure which showed the 4th example of the partition plate used for the compressor which concerns on this embodiment. The figure which showed the 5th example of the partition plate used for the compressor which concerns on this embodiment.

The compressor according to the present embodiment can be used alone as a device for compressing a fluid, and can be mounted on any device or system, but here, it will be described as being mounted in a refrigerating / refrigerating device. .. Therefore, this compressor may be mounted on an outdoor unit or the like of an air conditioner.

FIG. 1 is a diagram showing a configuration example of a freezing / refrigerating device. FIG. 1A is a view showing the appearance of the freezing and refrigerating equipment, and FIG. 1B is a cross-sectional view thereof. The refrigerating / refrigerating equipment is a commercial refrigerator / freezer, and has a refrigerating / refrigerating chamber 10 for accommodating products and a machine chamber 11 for accommodating machines such as compressors. The freezing / refrigerating chamber 10 is provided with a plurality of shelves 12 on which products requiring freezing / refrigerating are placed, and a fan 13 and an evaporator 14 which is a heat exchanger are provided on the ceiling. Here, the fan 13 and the evaporator 14 are provided on the ceiling, but the present invention is not limited to the ceiling. Further, the freezing / refrigerating chamber 10 is provided with a temperature sensor 15 for measuring the temperature inside the freezing / refrigerating chamber 10. The front surface of the freezing / refrigerating chamber 10 may be covered with an openable / closable glass door or the like.

In the machine room 11, a compressor 16, an expander 17, a condenser 18 which is a heat exchanger, and a fan 19 are installed. As for the compressor 16, a horizontal compressor is adopted in order to lower the height of the machine room 11 and increase the freezing and refrigerating room 10 in order to arrange a large number of products. As the compressor 16, a rotary compressor or a scroll compressor having a small number of parts is used. As the inflator 17, for example, an expansion valve is used.

In the machine room 11, a control device for controlling the operation of the fans 13 and 19 and the compressor 16 and various sensors for measuring the temperature of the refrigerant emitted from the compressor 16 and the like are installed. The control device controls the temperature, flow rate, and the like on the discharge side of the compressor 16 so that the temperature measured by the temperature sensor 15 becomes the set temperature.

FIG. 2 is a diagram illustrating a refrigeration cycle included in the refrigerating / refrigerating equipment. The refrigeration cycle is configured as one system in which the evaporator 14, the compressor 16, the expander 17, the condenser 18, and the accumulator 20 are connected by a refrigerant pipe 21 and the refrigerant circulates. The fan 13 is installed in the vicinity of the evaporator 14 and sucks the air in the freezing / refrigerating chamber 10 and supplies the air to the evaporator 14. The evaporator 14 exchanges heat between the air sucked by the fan 13 and the refrigerant to cool the air.

The fan 19 is installed in the vicinity of the condenser 18, sucks the air outside the freezing and refrigerating equipment, and supplies the fan 19 to the condenser 18. The condenser 18 exchanges heat between the air sucked by the fan 19 and the refrigerant to cool the refrigerant.

As the refrigerant, R134a (CH ₂ FCF ₃ ), R404A, R410A and the like can be used. R404A is a mixed solvent consisting of three components of _{R125 (C 2} HF ₃ ), R134a and R143a (CF ₃ CH ₃ ), and R410A is a mixed solvent consisting of two components of _{R32 (CH 2} F _{2) and R125.} .. Since these refrigerants are examples, the present invention is not limited to these.

When the power of the refrigerating / refrigerating equipment is turned on and the operation of the equipment is started, the compressor 16 is started and the circulation of the refrigerant is started.

The compressor 16 sucks in the refrigerant in a gas state, adiabatically compresses it, makes it high temperature and high pressure, and discharges it. The refrigerant discharged from the compressor 16 is sent to the condenser 18. The condenser 18 cools the refrigerant by the air sucked by the fan 19. At this time, at least a part of the refrigerant is condensed. The refrigerant cooled by the condenser 18 is sent to the expander 17. The expander 17 expands the compressed refrigerant. This further cools the refrigerant. The refrigerant cooled in this way is sent to the evaporator 14.

The evaporator 14 takes away the heat of the air sucked by the fan 13 by evaporating the condensed refrigerant to cool the air. The refrigerant discharged from the evaporator 14 is sent to the accumulator 20. The accumulator 20 removes the liquid-state refrigerant and supplies only the gas-state refrigerant to the compressor 16. This operation is repeated to cool the inside of the freezing / refrigerating chamber 10 to a set temperature.

FIG. 3 is a diagram showing a configuration example of the compressor 16. The compressor 16 is a scroll compressor, and includes a closed container 30, a rotating shaft 31, an electric motor 32, and a compression mechanism 33. Here, a scroll compressor will be described as an example, but the compressor may be a rotary compressor including the same closed container, rotating shaft, and the like.

The closed container 30 houses the rotating shaft 31, the electric motor 32, and the compression mechanism 33 inside, and the refrigerating machine oil 34 is stored in the container. In the closed container 30, a partition plate 35 for partitioning into two spaces, a first space and a second space, is provided, and a rotating shaft 31, an electric motor 32, and a compression mechanism 33 are arranged in the first space. The first space is divided into a motor chamber 36 in which the motor 32 is arranged and a pump chamber 37 in which the compression mechanism 33 is arranged. The second space is an oil storage chamber 38 for storing the refrigerating machine oil 34 supplied to the sliding portion, the bearing, and the like provided in the compression mechanism 33.

The closed container 30 has a suction pipe 39 for sucking the refrigerant and supplying it to the compression mechanism 33, and a discharge pipe 40 for discharging the compressed refrigerant. The closed container 30 is composed of a hollow cylindrical container body and two chambers that close both ends of the container body. One chamber (first chamber) is provided with a suction pipe 39, and the other chamber is provided. A discharge pipe 40 is provided in (second chamber). The container body and the two chambers are assembled by arranging a rotating shaft 31, an electric motor 32, and the like inside, and then welding a predetermined portion or the like.

The rotating shaft 31 is arranged at the center of the cross section of the closed container 30 which is elongated in the horizontal direction. The inside of the rotating shaft 31 is hollow, and one end is rotatably supported by the compression mechanism 33 and the other end is rotatably supported by the partition plate 35. In order to rotatably support the rotating shaft 31, the compression mechanism 33 has a main bearing 50, and the partition plate 35 is provided with a sub bearing 41.

The opening at the other end of the rotating shaft 31 is covered with a cap member 42, and a refueling pipe 43 for refueling the refrigerating machine oil is attached to the cap member 42. The refueling pipe 43 extends downward in order to suck up the refrigerating machine oil stored in the lower part of the closed container 30.

The electric motor 32 is configured to rotationally drive the compression mechanism 33 via the rotating shaft 31. The electric motor 32 includes a stator 32a and a rotor 32b. The stator 32a is composed of an iron core, a coil, or the like, and the rotor 32b is composed of a permanent magnet. The electric motor 32 forms an electromagnet by passing an electric current through the coil of the stator 32a, and rotates the rotor 32b by changing the direction of the electric current. In the electric motor 32, the stator 32a may include a permanent magnet, and the rotor 32b may be composed of an iron core, a coil, or the like.

In addition to the main bearing 50, the compression mechanism 33 includes a swirl scroll 51 composed of spiral blades and a fixed scroll 52 composed of spiral blades. The turning scroll 51 makes a turning motion with respect to the fixed scroll 52 to compress the refrigerant.

Here, with reference to FIG. 4, the principle of compression of the refrigerant by the swivel scroll 51 and the fixed scroll 52 will be briefly described. The fixed scroll 52 is fixed in a stationary state, and only the swivel scroll 51 swivels due to the rotation of the rotation shaft 31. FIG. 4A is a diagram showing a state in which compression is started. The refrigerant is taken in from the edge portion (the portion indicated by the diagonal line) away from the center in the radial direction, and is discharged from the discharge port 54 at the center. The portion shown by the diagonal line constitutes the compression chamber 53.

FIG. 4B is a diagram showing a state in which the swivel scroll 51 is swiveled by 90 °, FIG. 4C is a diagram showing a state in which the swivel scroll 51 is swiveled by 180 °, and FIG. 4D is a diagram showing a state in which the swivel scroll 51 is swiveled by 270 °. is there. Each time the swivel scroll 51 swivels, the compression chamber 53 moves toward the center and its volume decreases. Therefore, the volume of the refrigerant in the compression chamber 53 is also reduced, and the refrigerant is compressed.

With reference to FIG. 3 again, the refrigerant is discharged from the compression mechanism 33 into the space (discharge space) 60 formed by the first chamber and the compression mechanism 33, as shown by the black arrows. The refrigerant discharged to the discharge space 60 is sent to the primary space 61 between the electric motor 32 and the compression mechanism 33 through the refrigerant passage provided in the compression mechanism 33, and passes through the refrigerant passage 62 and the partition plate 35 provided in the electric motor 32. It is sent to the secondary space 63 which becomes the oil storage chamber 38.

The refrigerating machine oil 34 is a lubrication that reduces friction at a place where two members such as a rotating shaft 31, a main bearing 50 and a sub bearing 41, a swivel scroll 51 and a fixed scroll 52 slide, and improves the sealing property of the part. Used as oil. Therefore, it is pumped up through the refueling pipe 43, and a part is supplied between the rotating shaft 31 and the sub bearing 41 as shown by a thin and thick arrow line, and the rest is passed through the hollow inside of the rotating shaft 31 to the rotating shaft 31 and the main. It is supplied between the bearing 50 and between the swivel scroll 51 and the fixed scroll 52. The excess refrigerating machine oil 34 falls into the oil sump stored at the bottom due to gravity.

The partition plate 35 provides a first passage 35a for discharging the refrigerant from the first space to the outside through the second space, and a refrigerating machine oil 34 for supplying the compression mechanism 33 to the first space and the second space. It has a second passage 35b that allows it to move to and from the space of.

When the compressor 16 is stopped, the oil levels of the refrigerating machine oil 34 in the first space and the second space are at the same height. This is because there is no differential pressure between the first space and the second space.

After the compressor 16 is started, a pressure loss is generated in the refrigerant by the first passage 35a, and a differential pressure is generated between the first space and the second space. Then, the oil level of the refrigerating machine oil 34 becomes low in the first space on the high pressure side and high in the second space on the low pressure side. By raising the oil level in the second space, the refrigerating machine oil 34 can be appropriately supplied to the compression mechanism 33 even if the storage amount of the refrigerating machine oil 34 is reduced.

In addition to its function as a lubricating oil, the refrigerating machine oil 34 has stability such as not generating precipitates because it is used for a long time, and is circulated in the system together with the refrigerant. Many properties are required, such as having a refrigerant solubility that returns to the compressor 16 without adhering to. Therefore, the refrigerating machine oil 34 is one of the costly parts. However, in this compressor 16, the storage amount of the refrigerating machine oil 34 can be reduced, so that the cost can be reduced.

During operation of the compressor 16, the rotor 32b of the electric motor 32 provided around the rotating shaft 31 rotates. Therefore, it is desirable that the oil level of the refrigerating machine oil 34 does not come into contact with the rotor 32b during the activation of the compressor 16.

The pressure inside the rotating shaft 31 is the pressure between the pressure in the second space and the suction pressure of the compression mechanism 33, which is lower than the pressure in the second space. Therefore, the refrigerating machine oil 34 is sucked into the rotating shaft 31 through the oil supply pipe 43. Therefore, the oil level in the second space must be higher than the height of the refueling port at the tip of the refueling pipe 43 extending downward. Also, the height must be lower than the height of the first passage 35a so that the refrigerant flows through the first passage 35a of the partition plate 35.

FIG. 5 is a diagram for explaining the oil level difference. The difference in oil level height (oil level difference) Δh between the first space and the second space can be calculated by the following formula (1), and is based on the refrigerant gas passage area A and the refrigerant gas flow rate G. fluctuate.

In the above formula 1, N is the rotation speed, ζ is the drag coefficient, g is the gravitational acceleration, Ps is the suction pressure, Pd is the discharge pressure, ρ is the suction gas density, and n is the polytropic index (insulation index). The flow rate G is the amount of refrigerant circulating when the rotating shaft 31 makes one rotation.

The passage area A of the refrigerant gas depends on the cross-sectional area of the first passage 35a provided on the partition plate 35, and the flow rate G is affected by the pressing amount. Therefore, it is possible to adjust the oil level difference Δh appropriately by setting the cross-sectional area of the first passage 35a to a desired size for each pressing amount. The pressing amount is an amount that the swivel scroll 51 and the fixed scroll 52 remove the refrigerant in a unit time.

The flow rate G varies depending on the type of refrigerant and the like as well as the amount to be pressed. Incidentally, the amount of the refrigerant discharged by the compression mechanism 33 is the pressing amount multiplied by the volumetric efficiency. A wide variety of partition plates 35 are required to match various pressing amounts and types of refrigerants.

Therefore, the area of the first passage 35a is adjusted by the closing ratio by the closing portion that closes the first passage 35a. Before explaining with a specific example, the partition plate used in the conventional compressor will be briefly described with reference to FIG. The partition plate 100 has a circular shaft hole 101 through which a rotation shaft is passed in the central portion, and has two gas holes 102 that are above the shaft hole 101 and serve as a first passage in an arcuate outer edge portion. I have. Further, the partition plate 100 is provided with a liquid hole 103 serving as a second passage on the lower side of the shaft hole 101.

The liquid hole 103 is sized so that the refrigerating machine oil can sufficiently move between the first space and the second space via the partition plate 100. The size and number of holes of the gas hole 102 are determined so that the oil level of the refrigerating machine oil in the second space becomes a height within a predetermined range during the activation of the compressor.

There are many types of compressors depending on the amount to be pressed and the type of refrigerant according to the needs of customers. If the pressing amount and the type of refrigerant are different, the circulation amount of the refrigerant changes, and when trying to make the differential pressure between the first space and the second space a constant value, the size of the gas hole 102 and the size of the gas hole 102 according to the circulation amount The number of holes etc. must be changed. It is possible to prepare a wide variety of partition plates, but the size of the holes and the number of holes must be changed each time, which requires a great deal of manufacturing cost. For this reason, gas holes are not diversified and are shared.

FIG. 7 is a diagram showing a first example of a partition plate 35 having a closing portion in which the area of the first passage 35a can be adjusted by changing the closing ratio of the first passage 35a. Like the conventional partition plate 100, the partition plate 35 has a shaft hole 70 at the center and a liquid hole 71 serving as a second passage 35b below the shaft hole 70. In addition to the rotating shaft 31, a part of the sub bearing 41 is passed through the shaft hole 70. The liquid hole 71 is sized so that a sufficient amount of refrigerating machine oil 34 can move between the first space and the second space.

The gas hole 72 serving as the first passage 35a is a first space with respect to the closed portion 73 formed in the shape of a cantilever by making two cuts from the outer peripheral portion of the circular partition plate 35 toward the center. It is formed by bending the side or the second space side. In such a configuration, the area of the gas hole 72 can be adjusted by changing the closing ratio by the closing portion 73, that is, the bending angle of the closing portion 73.

The two cuts are centered on the top (top) of the circular partition plate 35, and from each of the positions moved by a certain distance to both sides in the arc direction toward the center of the partition plate 35 (center of the circle). It is formed by cutting to a predetermined length. Here, with the top as the center, cuts are made in the radial direction from each of the positions moved by a certain distance to both sides in the arc direction, but the cuts are not limited to this, and the two cuts are the refrigerating machine oil 34. It may be formed at any position as long as it is higher than the oil level of.

In this way, the area of the gas hole 72 can be adjusted simply by changing the bending angle of the closing portion 73 without changing the size of the holes or the number of holes each time, so a wide variety of partition plates are prepared. It is not necessary to do so, and the manufacturing cost can be reduced.

In the example shown in FIG. 7, the closed portion 73 is bent toward the second space side by approximately 90 degrees from the root to form the gas hole 72. The angle at which the closing portion 73 is bent is an angle with respect to the surface of the partition plate 35 on the first space side or the second space side, and when the partition plate 35 is bent 90 degrees or more, the gas hole 72 has the largest area. On the other hand, as the angle approaches 0 degrees, the area of the gas hole 72 becomes smaller.

The bending direction of the closing portion 73 may be the first space side or the second space side, but when the angle is less than 90 degrees, the second space side is preferable. When the angle is less than 90 degrees, the closed portion 73 faces upward, and the refrigerating machine oil 34 flowing along with the refrigerant collides with the inside of the upper closed container 30 along the closed portion 73. This is because it falls as droplets and returns to the lower oil sump. Thereby, the amount (oil rate) of the refrigerating machine oil 34 circulating in the refrigerating cycle can be reduced.

FIG. 8 is a diagram showing a second example of the partition plate 35. Similar to the partition plate 35 shown in FIG. 6, the partition plate 35 has a shaft hole 70 at the center and a liquid hole 71 serving as a second passage 35b below the shaft hole 70. In addition to the rotating shaft 31, a part of the sub-bearing 41 is passed through the shaft hole 70, and a sufficient amount of refrigerating machine oil 34 can move between the first space and the second space in the liquid hole 71. It is said to be a large size.

In the example shown in FIG. 8, the closed portion 73 is bent substantially 45 degrees toward the second space side at a position in the middle of the radial direction, not at the root thereof, to form the gas hole 72. Therefore, the closed portion 73 can adjust the area of the gas hole 72 by changing not only the bending angle but also the bending position. Although only one of the angle and the position may be changed, the area of the gas hole 72 can be finely adjusted by changing both of them.

FIG. 9 is a diagram showing a third example of the partition plate 35. If there is only one closing portion 73, it is possible to cope with a case where it is desired to increase the area of the gas hole 72 by providing the two notches separated from each other. However, as the positions of the two cuts are separated, the closing portion 73 becomes wider in the arc direction, and it becomes difficult to perform bending.

Therefore, three or more notches are made at regular intervals in the arc direction to form two or more closed portions 73. As a result, bending is easy, and the area of the gas hole 72 can be adjusted in either a large direction or a small direction, and fine adjustment can be made by bending from the middle in the radial direction.

FIG. 10 is a diagram showing a fourth example of the partition plate 35. In the example shown in FIG. 9, a partition plate 35 having a hole 74 of a certain size is used in advance at a predetermined position, and a closing plate 75 is used as a closing portion to change the ratio of closing the hole 74. .. Here, two holes 74 are provided, but the number of holes 74 is not limited to two, and may be one or three or more.

The closing plate 75 has an arc shape that matches the outer circumference of the partition plate 35 and the shape of the shaft hole 70. The closing plate 75 is a plate made of metal, plastic resin, or the like, and is attached so as to cover a part of the hole 74. The closing plate 75 can be attached to the surface of the partition plate 35 on the first space side or the second space side by adhesion or welding, or by using a connecting means such as a bolt.

FIG. 11 is a diagram showing a fifth example of the partition plate 35. In the example shown in FIG. 11, the closing plate 75 shown in FIG. 10 is used, and the closing plate 75 has a hole 76 having the same shape and size as the hole provided in the partition plate 35. The closing ratio can be adjusted by changing the amount of deviation between the positions of the holes 74 and 76. The fully open state is when the center position of the hole 74 and the center position of the hole 76 are aligned, that is, when the deviation amount is 0. The closing ratio increases as the amount of displacement increases because the portion of the closing plate 75 other than the hole 76 covers the hole 74 of the partition plate 35.

The closing plate 75 can be attached to the surface of the partition plate 35 on the first space side or the second space side by adhesion or welding, or by using a connecting means such as a bolt. In this case as well, the number of holes 74 is not limited to one, and two or more holes 74 may be provided. The closing plate 75 may also be provided with two or more holes 76 correspondingly.

When two or more holes 74 and 76 are provided in the circumferential direction, the closing plate 75 may be displaced in the radial direction, which is a direction perpendicular to the circumferential direction, to change the amount of misalignment between the holes 74 and 76. .. As a result, the hole 74 can be reliably covered with a portion of the closing plate 75 other than the hole 76, and the closing ratio can be adjusted.

Although the compressor, refrigerating and refrigerating apparatus and air conditioner of the present invention have been described in detail with the above-described embodiments, the present invention is not limited to the above-described embodiments, and other embodiments and other embodiments and Additions, changes, deletions, etc. can be made within the range that can be conceived by those skilled in the art, and any aspect is included in the scope of the present invention as long as the actions and effects of the present invention are exhibited.

10 ... Freezing and refrigerating room 11 ... Machine room 12 ... Shelf 13 ... Fan 14 ... Evaporator 15 ... Temperature sensor 16 ... Compressor 17 ... Expander 18 ... Condenser 19 ... Fan 20 ... Accumulator 21 ... Refrigerant piping 30 ... Sealed container 31 ... Rotor shaft 32 ... Motor 32a ... Refrigerant 32b ... Rotor 33 ... Compressor 34 ... Refrigerator oil 35 ... Partition plate 35a ... First passage 35b ... Second passage 36 ... Motor chamber 37 ... Pump chamber 38 ... Oil storage Chamber 39 ... Suction pipe 40 ... Discharge pipe 41 ... Sub bearing 42 ... Cap member 43 ... Refueling pipe 50 ... Main bearing 51 ... Swivel scroll 52 ... Fixed scroll 53 ... Compression chamber 54 ... Discharge port 60 ... Discharge space 61 ... Primary space 62 ... Refrigerant passage 63 ... Secondary space 70 ... Shaft hole 71 ... Liquid hole 72 ... Gas hole 73 ... Closed part 74 ... Hole 75 ... Closing plate 76 ... Hole 100 ... Partition plate 101 ... Shaft hole 102 ... Gas hole 103 ... Liquid hole

Claims (6)

A compressor that compresses fluid
With the container
A compression mechanism that is housed in the container and compresses the fluid,
A partition plate that divides the inside of the container into a first space and a second space is included.
The compression mechanism is arranged in the first space, and discharges the compressed fluid into the first space.
The partition plate provides a first passage for discharging the compressed fluid from the first space to the outside through the second space, and oil supplied to the compression mechanism in the first space. It has a second passage that makes it movable between and the second space, and a closing portion that can adjust the area of the first passage by changing the closing ratio of the first passage. Compressor. The closed portion is formed in the shape of a cantilever by making two or more notches in the partition plate.
The first passage is formed by bending the closed portion toward the first space side or the second space side.
The compressor according to claim 1, wherein the area of the first passage is adjusted by changing the bending position and / or angle of the closed portion. The partition plate has one or more holes as the first passage.
The closing portion is composed of a closing plate attached to the first space side or the second space side surface of the partition plate.
The compressor according to claim 1, wherein the area of the first passage is adjusted by changing the ratio of closing one or more holes of the partition plate by the closing plate. The closing plate has one or more holes
The compression according to claim 3, wherein the area of the first passage is adjusted by changing the amount of deviation of the position of one or more holes of the closing plate with respect to the position of one or more holes of the partition plate. Machine. A refrigerating / refrigerating machine including the compressor according to any one of claims 1 to 4. An air conditioner comprising the compressor according to any one of claims 1 to 4.

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