CN211449034U - Compressor and air conditioner - Google Patents

Abstract

The utility model provides a compressor and air conditioner, the compressor includes: casing subassembly (1), casing subassembly (1) inside is provided with pump body subassembly (3), just casing subassembly (1) inside is formed with casing chamber (100), pump body subassembly (3) be formed with casing chamber (100) sealed pump body chamber (200), make and get into fluid in the pump body chamber (200) can carry out gas-liquid separation or oil-gas separation. Through the utility model discloses can still save vapour and liquid separator's structure effectively when accomplishing gas-liquid separation, still save oil separator's structure effectively when accomplishing oil-gas separation, also can make the structure volume very reduce, the quality reduces equally, can both guarantee to carry out the volume and the quality that can effectively reduce the compressor again when gas-liquid separation and oil-gas separation.

Description

Compressor and air conditioner

Technical Field

The utility model belongs to the technical field of the compressor, concretely relates to compressor and air conditioner.

Background

The existing rolling rotor type compressor for the refrigerating system mainly has two types: one is a high back pressure compressor with high pressure refrigerant in the compressor housing assembly and the other is a low back pressure compressor with low pressure refrigerant in the compressor housing assembly.

High back pressure compressor adopts external knockout on the breathing pipe, carries out gas-liquid to inhaling mixed refrigerant and divides the liquid to guarantee that the pump body is breathed in and not take place to take the liquid phenomenon, thereby ensure the reliability of compressor, nevertheless this compressor under the assembly of knockout, its volume and quality increase, the knockout can produce the noise simultaneously, resonance takes place with the compressor body even, noise aggravation when leading to the compressor operation.

The low back pressure compressor relies on the compressor housing subassembly inner chamber to carry out gas-liquid separation to mixed refrigerant, but the exhaust area oil rate of this compressor is high, and the oil circulation rate is high promptly, causes refrigerating system's pipeline oil accumulation, seriously influences the heat exchange, reduces complete machine efficiency, and prior art is that the external oil separator of blast pipe reduces the oil circulation rate, but the oil separator has the same problem that brings with high back pressure compressor knockout.

Along with the improvement of living standard, the requirements on low noise, light weight, small volume and high energy efficiency of the whole compressor are higher and higher. Therefore, how to ensure that a liquid separator of the high-backpressure compressor plays a role in gas-liquid separation and simultaneously avoid the problems of volume, quality and noise brought to the compressor; how to ensure that the low back pressure compressor oil separator reduces the exhaust oil circulation rate and avoid bringing the problem of volume, quality and noise to the compressor simultaneously is one of the problems that the present rolling rotor compressor field awaits solution urgently.

Because the compressor among the prior art exists because set up the gas-liquid or carry out low pressure gas-liquid separation or adopt the oil separator to carry out high-pressure oil separation and all can bring the problem that the compressor volume is too big, the quality is too big and noise etc to and the gas-liquid separation effect is not good or be technical problem such as the oil-gas separation effect is not good, consequently the utility model discloses research and design a compressor and air conditioner.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the compressor among the prior art and can bringing the compressor volume too big, the quality is too big owing to set up vapour and liquid separator or oil separator, can't guarantee can carry out the gas-liquid separation and can effectively reduce the defect of the volume and the quality of compressor again when oil-gas separation to a compressor and air conditioner are provided.

The utility model provides a compressor, it includes:

the casing subassembly, casing subassembly inside is provided with pump body subassembly, just the casing subassembly is inside to be formed with the casing chamber, pump body subassembly be formed with the sealed pump body chamber in casing chamber makes the entering fluid in the pump body chamber can carry out gas-liquid separation or oil-gas separation.

Preferably, the first and second electrodes are formed of a metal,

the pump body subassembly includes the pump body, the pump body chamber is located the radial outside of pump body gets into fluid in the pump body chamber can also with carry out the heat transfer between the pump body outer wall, the pump body includes cylinder and rotor.

Preferably, the first and second electrodes are formed of a metal,

the pump body assembly further comprises a flange, the flange comprises an upper flange, a lower flange and a lower flange cover, the lower flange cover is arranged at the end face of the lower flange and is of a cylinder structure, the side wall of the lower flange cover faces the direction of the upper flange, the lower flange cover extends and is connected with the upper flange, the lower flange cover and the upper flange form a space between the upper flange and the pump body cavity, and the pump body is located inside the pump body cavity.

Preferably, the first and second electrodes are formed of a metal,

the pump body assembly further comprises a flange, the flange comprises an upper flange, a lower flange and a lower flange cover, the lower flange cover is arranged at the end face of the lower flange, the upper flange is of a cylinder structure, the side wall of the upper flange extends towards the direction of the lower flange cover and is connected with the lower flange cover, the lower flange cover and the upper flange form the pump body cavity in the space surrounding the upper flange, and the pump body is located inside the pump body cavity.

Preferably, the first and second electrodes are formed of a metal,

the peripheral wall of the lower flange cover is provided with a first through hole, the position, opposite to the first through hole, of the shell assembly is further provided with a second through hole, and the pump body cavity can suck air from the outside of the shell assembly or exhaust the air to the outside of the shell assembly through the first through hole and the second through hole.

Preferably, the first and second electrodes are formed of a metal,

at least one wire groove along the axial direction is formed in the outer wall of at least one of the pump body and the lower flange; and/or the pump body further comprises a crankshaft, at least one spirally-surrounding annular groove is arranged on the outer wall of at least one of the pump body and the lower flange, and the surrounding direction of the annular groove is opposite to the rotating direction of the crankshaft.

Preferably, the first and second electrodes are formed of a metal,

when the first via hole and the second via hole are included: and air suction pipes are arranged in the first through hole and the second through hole, and the axial direction of each air suction pipe is the same as the tangential direction of the air suction pipe extending to the position of the annular groove.

Preferably, the first and second electrodes are formed of a metal,

the pump body still includes the bent axle, be provided with at least one spiral baffle that the spiral encircles in the pump body chamber, just the direction of encircleing of spiral baffle with the direction of rotation of bent axle is opposite.

Preferably, the first and second electrodes are formed of a metal,

when the flange comprises a lower flange and a lower flange cover, and the lower flange cover is of a cylindrical structure, the radial outer side of the spiral partition plate is connected with the lower flange cover, and the radial inner side of the spiral partition plate is connected with the pump body and/or the lower flange.

Preferably, the first and second electrodes are formed of a metal,

the spiral partition plate and the lower flange cover are integrally formed, or are in welded connection, or are in interference fit, or are connected through a buckle.

Preferably, the first and second electrodes are formed of a metal,

the spiral baffle plate is further provided with an oil gathering hole, the bottom of the lower flange cover is further provided with an oil drainage hole, and the oil drainage hole is further connected with a pressure drop device.

Preferably, the first and second electrodes are formed of a metal,

the top of the shell assembly is provided with a third through hole, and air can be sucked from the outside of the shell assembly or exhausted to the outside of the shell assembly; and/or the compressor is a rotary compressor.

The utility model also provides an air conditioner, it includes preceding arbitrary compressor.

The utility model provides a pair of compressor and air conditioner have following beneficial effect:

1. the utility model discloses a pump body subassembly inside compressor housing assembly is formed with the pump body chamber, and sealed partition between the casing chamber, can be when the casing chamber is high backpressure, admit air from the pump body chamber and accomplish gas-liquid separation and breathe in and get into the pump body in the pump body chamber and compress, gas-liquid separator's structure has still been saved effectively when accomplishing gas-liquid separation, make the structure volume very reduce, the quality reduces, and can be when the casing chamber is low backpressure, exhaust from the pump body chamber and accomplish oil-gas separation in the pump body chamber and discharge the casing assembly outside, oil-gas separation's structure has still been saved effectively when accomplishing oil-gas separation, also can make the structure volume very reduce equally, the quality reduces, can both guarantee to carry out gas-liquid separation and oil-gas separation can effectively reduce the volume and the quality of compressor; the liquid separator structure (oil-gas separation structure) and the pump body structure are integrally designed, so that the volume of the compressor can be reduced, the quality of the compressor can be reduced, and the gas-liquid separation effect and the oil-gas separation effect can be achieved;

2. the utility model also adopts the spiral guiding structure design of the inner cavity of the lower flange cover to lead the gas to rotate spirally, enhance the flow guidance, strengthen the gas-liquid separation or oil-gas separation function and improve the heat exchange between the pump body and the gas-liquid separation device; the axial wire grooves are arranged, so that resistance can be generated on gas flowing in the circumferential direction, tangential pushing on a pump body is generated, tangential vibration of the compressor is effectively reduced, and noise is improved; the high back pressure compressor has the advantages that the groove structure design of the pump body part effectively increases the heat exchange area, improves the heat exchange speed, cools the pump body, reduces the temperature of the pump body, and gasifies a liquid refrigerant; the low back pressure compressor, motor heating mix refrigerant, the refrigerated liquid refrigerant of cooling motor gasification reduces the temperature of motor, simultaneously, improves the cryogenic separation efficiency of exhaust gas-oil mixture, reduces the oil circulation rate of compressor.

Drawings

Fig. 1 is a structure diagram of a refrigeration cycle of a first embodiment of an air conditioner of the present invention;

fig. 2 is a schematic view of an internal structure of a first embodiment of the compressor of the present invention;

FIG. 3 is a cross-sectional view of the pump body assembly inside the compressor of the present invention;

FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 2;

FIG. 5 is a schematic structural view of the upper flange of FIG. 2;

FIG. 6 is a partial cross-sectional view of a preferred construction of the pump body assembly of FIG. 3;

FIG. 7a is a top view of the lower flange cover of FIG. 2;

FIG. 7B is a sectional view of B-B of FIG. 7 a;

fig. 8 is a sectional view of the internal structure of a compressor according to a second embodiment of the present invention;

FIG. 9 is a schematic view of the cross-sectional structure C-C of FIG. 8;

FIG. 10a is a top view of the lower flange cover of FIG. 8;

FIG. 10b is a cross-sectional view taken along line D-D of FIG. 10 a;

fig. 11 is a sectional view showing an internal structure of a compressor according to a third embodiment of the present invention;

fig. 12 is a structure view of a refrigeration cycle of a fourth embodiment of the air conditioner of the present invention;

fig. 13 is a schematic view of the internal structure of a fourth embodiment of the compressor of the present invention (top intake);

FIG. 14 is a top view of the upper flange of FIG. 13;

FIG. 15a is a bottom view of the lower flange cover of FIG. 13;

fig. 15b is a plan view of the lower flange cover in fig. 13.

The reference numbers in the figures denote:

1. a housing assembly; 111. a second through hole; 112. a third through hole; 2. a motor assembly; 3. a pump body assembly; 4. a crankshaft; 5. an upper flange; 6. an upper roller; 7. a gasket; 8. an upper cylinder; 9. an upper partition plate; 10. A lower partition plate; 11. a lower roller; 12. a lower cylinder; 13. a lower flange; 14. a lower flange cover; 141. a first through hole; 15. a screw; 16. an upper sliding sheet; 17. a wire slot; 18. a helical groove; 19. a sealing groove; 20. a spiral partition plate; 21. a middle partition plate; 22. an air inlet; 23. an oil gathering hole; 24. an oil drainage hole; 25. and (4) sucking a pipe.

100. A housing cavity; 200. a pump body cavity; 300. and a pump body.

Detailed Description

First embodiment as shown in fig. 1-7b, the present invention provides a compressor, comprising:

the utility model discloses have the embodiment as follows: an air conditioning system applied to a high-back-pressure two-stage compressor is shown in fig. 1, wherein mixed refrigerant flowing into the compressor through an evaporator enters an outer cavity of a pump body, is subjected to gas-liquid separation, is sucked by a lower cylinder, is subjected to primary compression on the refrigerant, is discharged into a lower flange cavity and a lower partition plate cavity, and then enters an upper cylinder through a pump body circulation hole; the upper cylinder compresses the refrigerant for the second time to form high-temperature high-pressure gas state which is discharged into the shell of the compressor, the high-temperature high-pressure gas state is changed into low-temperature high-pressure gas-liquid mixed refrigerant through the condenser, the low-temperature high-pressure gas-liquid mixed refrigerant is throttled and reduced in pressure through the throttle valve, the low-temperature high-pressure gas-liquid mixed refrigerant enters the evaporator to exchange.

The utility model discloses built-in knockout compressor mainly includes casing subassembly 1, motor element 2 and pump body subassembly 3 (see fig. 2), as shown in fig. 3, its pump body subassembly 3 mainly includes bent axle 4, goes up flange 5, goes up roller 6, and sealed 7, goes up cylinder 8, goes up baffle 9, lower baffle 10, lower roller 11, lower cylinder 12, lower flange 13, lower flange lid 14, screw 15, spare parts such as last gleitbretter 16 constitute.

As shown in fig. 2 and 3, during the operation of the pump body, the rotor of the motor assembly 2 drives the crankshaft 4 in the pump body assembly 3 to rotate. As shown in fig. 4, the upper roller 6 is assembled on the eccentric circle of the crankshaft 4 and rotates with the crankshaft 4, and since the outer circular wall of the upper roller 6 and the inner circular wall of the upper cylinder 8 form a cavity, the air cavity is divided into two parts, namely a low pressure cavity and a high pressure cavity, by the cooperation of the upper sliding vane 16 and the upper roller 6. The low pressure cavity gradually increases with the change of the position of the upper roller 6 to form negative pressure to suck low-temperature and low-pressure refrigerant, and the volume of the high pressure cavity gradually decreases to compress the refrigerant into high-temperature and high-pressure refrigerant and discharge the high-temperature and high-pressure refrigerant, so that the compression of the refrigerant is realized. The upper cylinder 8 and the lower cylinder 12 of the pump body of the two-stage compressor can simultaneously perform the refrigerant compression work, the lower cylinder 12 sucks the gaseous refrigerant in the refrigeration system, the gaseous refrigerant is subjected to first-stage compression and then is discharged into the cavity of the lower flange 13 and the cavity of the lower partition plate 10, and the gaseous refrigerant enters the upper cylinder 8 through the fluid hole, is subjected to second-stage compression and then is discharged into the shell of the compressor.

Casing subassembly 1, casing subassembly 1 is inside to be provided with pump body subassembly 3, just casing subassembly 1 is inside to be formed with casing chamber 100, pump body subassembly 3 be formed with casing chamber 100 sealed pump body chamber 200 makes the entering fluid in the pump body chamber 200 can carry out gas-liquid separation or oil-gas separation.

The utility model discloses a pump body subassembly inside compressor housing assembly is formed with the pump body chamber, and sealed partition between the casing chamber, can be when the casing chamber is high backpressure, admit air from the pump body chamber and accomplish gas-liquid separation and breathe in and get into the pump body in the pump body chamber and compress, gas-liquid separator's structure has still been saved effectively when accomplishing gas-liquid separation, make the structure volume very reduce, the quality reduces, and can be when the casing chamber is low backpressure, exhaust from the pump body chamber and accomplish oil-gas separation in the pump body chamber and discharge the casing assembly outside, oil-gas separation's structure has still been saved effectively when accomplishing oil-gas separation, also can make the structure volume very reduce equally, the quality reduces, can both guarantee to carry out gas-liquid separation and oil-gas separation can effectively reduce the volume and the quality of compressor; the liquid separator structure (oil-gas separation structure) and the pump body structure are integrally designed, so that the volume of the compressor can be reduced, the quality of the compressor is reduced, and the gas-liquid separation effect and the oil-gas separation effect are achieved.

Preferably, the first and second electrodes are formed of a metal,

the pump body assembly comprises a pump body 300, the pump body cavity 200 is located at the radial outer side of the pump body 300, fluid entering the pump body cavity 200 can exchange heat with the outer wall of the pump body 300, and the pump body 300 comprises a cylinder and a rotor. The utility model discloses can also make through the pump body chamber and carry out the heat transfer between the fluid in the pump body chamber and the pump body to effectively reduce the temperature of the pump body, the mixed refrigerant is heated before the compressor cylinder inhales, improves the separation efficiency of gas-liquid mixture refrigerant, and when the compressor was high backpressure, can improve the heat transfer speed of the pump body and gas-liquid mixture refrigerant, reduce the temperature of the pump body.

As shown in fig. 2-3, preferably,

the pump body assembly further comprises a flange, the flange comprises an upper flange 5, a lower flange 13 and a lower flange cover 14, the lower flange cover 14 is arranged at the end face of the lower flange 13, the lower flange cover 14 is of a cylinder structure, the side wall of the lower flange cover extends towards the direction of the upper flange 5 and is connected with the upper flange 5, the pump body cavity 200 is formed in a space surrounded between the lower flange cover 14 and the upper flange 5, and the pump body 300 is located inside the pump body cavity 200.

This is the embodiment one of the utility model discloses a preferred mode of formation in pump body chamber, make its formation into tubular structure through the special form that sets up of lower flange lid promptly, meet with the upper flange is sealed, form inside pump body cavity structure that has sealed cavity, make the refrigerant get into the effect of accomplishing gas-liquid separation in this pump body cavity when breathing in, get into the effect of accomplishing oil-gas separation in this pump body cavity when exhausting, needn't set up vapour and liquid separator and oil separator again, make the whole volume of compressor very reduce, the quality reduces, and guarantee the effect of original gas-liquid separation and oil content.

The utility model provides a following technical problem:

the volume of the compressor is reduced; reducing the mass of the compressor; the tangential vibration of the compressor is reduced, and the noise is favorably improved; the mixed refrigerant is heated before the air cylinder of the compressor sucks, so that the separation efficiency of the gas-liquid mixed refrigerant is improved; when the compressor has high back pressure, the heat exchange speed between the pump body and the gas-liquid mixed refrigerant can be increased, and the temperature of the pump body is reduced; when the compressor has low back pressure, the heat exchange speed of the motor and the gas-liquid mixed refrigerant can be increased, and the temperature of the motor is reduced; when the compressor is in low back pressure, the oil-gas separation efficiency of exhaust is improved, and the oil circulation rate of the compressor is reduced.

Preferably, the first and second electrodes are formed of a metal,

the pump body assembly further comprises a flange, the flange comprises an upper flange 5, a lower flange 13 and a lower flange cover 14, the lower flange cover 14 is arranged at the end face of the lower flange 13, the upper flange 5 is of a cylinder structure, the side wall of the upper flange extends towards the direction of the lower flange cover 14 and is connected with the lower flange cover 14, the pump body cavity 200 is formed in a space surrounded between the lower flange cover 14 and the upper flange 5, and the pump body 300 is located inside the pump body cavity 200.

This is the utility model discloses a preferred mode of formation (not shown in the figure) of pump body chamber of alternative embodiment of embodiment one, make its formation into tubular structure through the special form that sets up of upper flange promptly, meet with flange lid is sealed down, form the inside pump body cavity structure that has sealed cavity, make the refrigerant get into this pump body cavity when breathing in and accomplish gas-liquid separation's effect, get into this pump body cavity when exhausting and accomplish oil-gas separation's effect, needn't set up vapour and liquid separator and oil separator again, make the whole volume of compressor greatly reduce, the quality reduces, and guarantee the effect of original gas-liquid separation and oil content.

Preferably, the first and second electrodes are formed of a metal,

a first through hole 141 is formed in a peripheral wall of the lower flange cover 14, a second through hole 111 is further formed in the casing module 1 at a position opposite to the first through hole 141, and the pump chamber 200 can suck air from the outside of the casing module 1 or discharge air to the outside of the casing module 1 through the first through hole 141 and the second through hole 111. This is the preferred structural style of the lower flange cover and the housing assembly of the present invention, and the first through hole and the second through hole can allow the air suction pipe or the air discharge pipe to pass therethrough to complete the air suction process to the pump body cavity or the air discharge process from the pump body cavity to the outside.

Preferably, the first and second electrodes are formed of a metal,

at least one wire groove 17 along the axial direction is arranged on the outer wall of at least one of the pump body 300 and the lower flange 13; and/or the pump body 300 further comprises a crankshaft 4, at least one spiral groove 18 spirally wound is arranged on the outer wall of at least one of the pump body 300 and the lower flange 13, and the winding direction of the spiral groove 18 is opposite to the rotation direction of the crankshaft 4.

This is the embodiment 1 of the present invention further prefers the structural style, through the axial direction of the wire groove, can generate resistance to the circular flowing gas, generate the tangential push to the pump body, effectively reduce the tangential vibration of the compressor, is favorable to improving the noise, and also effectively increase the heat exchange area, improve the heat exchange speed, cool the pump body, reduce the temperature of the pump body, gasify the liquid refrigerant; meanwhile, an annular groove (namely a spiral groove 18) surrounding the crankshaft 4 is arranged, the surrounding direction is opposite to the rotating direction of the crankshaft 4, the heat exchange area of the pump body part is increased, the sucked refrigerant is guided to rotate around the groove to enable the gas to rotate spirally, the flow guide is enhanced, the effect of gas-liquid separation or oil-gas separation is enhanced, and the heat exchange between the pump body and the refrigerant is improved. And wire grooves and spiral grooves are preferably arranged on the outer walls of the upper flange, the lower flange, the air cylinder and the partition plate.

Preferably, the first and second electrodes are formed of a metal,

when the first through hole 141 and the second through hole 111 are included: an air suction pipe 25 is disposed in the first through hole 141 and the second through hole 111, and an axial direction of the air suction pipe 25 is the same as a tangential direction of the air suction pipe at a position where the air suction pipe extends to the spiral groove 18.

As shown in fig. 4, the axis of the air suction pipe of the pump body of the present invention is not directed to the center of the circle, which is called as "offset" setting, the offset direction is consistent with the direction of the spiral groove 18, the shell and the air suction pipe of the pump body are offset to promote the fluid to flow along the annular groove, promote the flow guiding function, improve the tangential force to the pump body, further reduce the vibration of the pump body, and enhance the heat exchange; as shown in fig. 2, the mixed refrigerant in the system enters the pump body external cavity of the compressor from the shell offset suction pipe, the refrigerant rotates around the pump body and moves downwards, the rotation direction of the refrigerant is opposite to that of the crankshaft, in the process, the refrigerant exchanges heat with the pump body, absorbs heat generated in the compression process of the pump body and is gasified, and finally, the refrigerant is sucked into the pump body by the lower air cylinder.

As shown in fig. 3, the end face of the upper flange 5 of the pump body, the upper cylinder 8, the upper partition 9, the lower partition 10, the lower cylinder 12, the lower flange 13 and the lower flange cover 14 form a component having a gas-liquid separation function. As shown in fig. 5, the end surface of the upper flange 5 is a sealing surface plane. As shown in fig. 6 and fig. 7a-7b, the inner cavity of the lower flange cover 14 can accommodate other parts of the pump body, the upper end surface of the lower flange cover 14 is matched with the end surface of the upper flange 5, and a sealing groove 19 is arranged to ensure the sealing performance of the lower flange cover 14 and the upper flange 5. As shown in fig. 5 and 6, the upper cylinder 8, the upper partition plate 9, the lower partition plate 10, the lower cylinder 12 and the lower flange 13 are provided with a wire slot 17 along the axial direction of the crankshaft 4 and a spiral slot 18 around the crankshaft 4 in the opposite direction to the rotation direction of the crankshaft 4, so that the heat exchange area of pump body parts is increased, and the sucked refrigerant is guided to revolve. As shown in fig. 4, the housing and the pump body suction pipe are offset in the same direction as the spiral groove 18.

As shown in fig. 2, the mixed refrigerant in the system enters the pump body external cavity of the compressor from the shell offset suction pipe, the refrigerant rotates around the pump body and moves downwards, the rotation direction of the refrigerant is opposite to that of the crankshaft, in the process, the refrigerant exchanges heat with the pump body, absorbs heat generated in the compression process of the pump body and is gasified, and finally, the refrigerant is sucked into the pump body by the lower air cylinder.

Embodiment two, as shown in fig. 8-10b, preferably,

the pump body 300 further includes a crankshaft 4, at least one spiral partition plate 20 spirally wound is disposed in the pump body cavity 200, and the winding direction of the spiral partition plate 20 is opposite to the rotation direction of the crankshaft 4. As shown in fig. 8, the main difference between the second embodiment and the first embodiment is: as shown in FIG. 8, the upper cylinder 8, the upper diaphragm 9, the lower diaphragm 10, the lower cylinder 12, and the lower flange 13 are not provided with the spiral groove 18 around the crankshaft 4. As shown in fig. 9 and fig. 10a-10b, a spiral baffle plate 20 is disposed in the lower flange cover 14 in a direction opposite to the rotation direction of the crankshaft 4, so as to enhance the spiral rotation guiding effect of the inner cavity of the lower flange cover 14 on the refrigerant.

Preferably, the first and second electrodes are formed of a metal,

when the flange includes a lower flange 13 and a lower flange cover 14, and the lower flange cover 14 is a cylindrical structure, the radially outer side of the spiral partition 20 is connected to the lower flange cover 14, and the radially inner side is connected to the pump body 300 and/or the lower flange 13. This is embodiment two of the utility model discloses a further preferred structural style, promptly spiral baffle radially outside with the lower flange lid meets, radially inboard with the pump body and/or the flange meets down to make and separate the pump body chamber strictly for the three-dimensional passageway of spiral, make the fluid that gets into in the pump body chamber along the spiral channel runner, further strengthened the water conservancy diversion effect to the fluid, improved gas-liquid separation or oil-gas separation's effect, and heat transfer area improves, heat exchange efficiency obtains the reinforcing, also improves to the cooling effect and the shearing anti vibration resistance of the pump body to some extent.

Preferably, the first and second electrodes are formed of a metal,

the spiral partition plate 20 and the lower flange cover 14 are integrally formed, or are in welded connection, or are in interference fit, or are in snap connection. This is the utility model discloses a further preferred structural style of spiral baffle can form integrative lower flange lid structure for gas-liquid separation effect, oil content effect obtain further reinforcing, and convenient assembly.

EXAMPLE III

As shown in fig. 11, the upper cylinder 8, the upper partition 9, the lower partition 10, the lower cylinder 12, the lower flange 13 are provided with a spiral groove 18 surrounding the crankshaft 4, and the lower flange cover 14 is provided with a spiral partition 20 opposite to the rotation direction of the crankshaft 4, so that the spiral rotation guiding effect of the inner cavity of the lower flange cover 14 on the refrigerant is further effectively improved, that is, the spiral groove and the spiral partition are provided at the same time.

Example four

As shown in fig. 12-15b, in the air conditioning system using the low back pressure two-stage compressor, as shown in fig. 12, the mixed refrigerant flowing into the compressor through the evaporator enters the compressor housing, is sucked by the upper cylinder 8, compresses the refrigerant once, discharges the compressed refrigerant into the partition cavity, and enters the upper cylinder 8 through the pump body circulation hole; the lower cylinder 12 compresses the refrigerant for the second time to form a high-temperature high-pressure gas state and discharges the gas state into the outer cavity of the pump body, the gas-oil separation structure of the pump body enters the condenser to become a low-temperature high-pressure gas-liquid mixed refrigerant, the gas-oil separation structure of the pump body throttles and reduces the pressure through the throttle valve, the gas-oil mixed refrigerant enters the evaporator to exchange heat with the outside, and finally the gas.

As shown in fig. 13, the main differences of the present embodiment are: the compression sequence of the upper cylinder 8 and the lower cylinder 12 of the compressor is exchanged, air is sucked and enters the shell of the compressor, the exhaust gas is discharged to the outer cavity of the pump body and then is directly discharged into the refrigeration system, the refrigerant is subjected to oil-gas separation in the outer cavity of the pump body through the impact of the spiral partition plate 20 and the rotating centrifugal action of the refrigerant (the upper cylinder sucks air from the shell to perform primary compression, the refrigerant subjected to primary compression enters the lower cylinder to perform secondary compression, then is discharged to the outer cavity of the pump body to perform oil-gas separation, and finally is directly discharged into the refrigeration system. As shown in fig. 14, the upper flange 5 has no exhaust valve seat and only has the intake holes 22 of the upper cylinder 8; as shown in fig. 15b, the spiral partition plate of the lower flange cover 14 has an oil gathering hole 23, the bottom of the lower flange cover 14 has an oil drainage hole 24, and the oil drainage hole 24 is connected with a pressure drop capillary tube to ensure that the oil in the pump body outer cavity returns to the compressor shell.

Preferably, the first and second electrodes are formed of a metal,

the spiral partition plate is further provided with an oil gathering hole 23, the bottom of the lower flange cover 14 is further provided with an oil drainage hole 24, and the oil drainage hole 24 is further connected with a pressure drop device. As shown in fig. 15b, the spiral partition plate of the lower flange cover 14 has an oil gathering hole 23, the bottom of the lower flange cover 14 has an oil drainage hole 24, and the oil drainage hole 24 is connected with a pressure drop capillary tube to ensure that the oil in the pump body outer cavity returns to the compressor shell.

Preferably, the first and second electrodes are formed of a metal,

the top of the housing assembly 1 is provided with a third through hole 112 capable of sucking air from the outside of the housing assembly 1 or exhausting air to the outside of the housing assembly 1; and/or the compressor is a rotor compressor. Through the third through-hole that the casing subassembly top set up, can realize high-pressure exhaust through this third through-hole when high back pressure casing subassembly, realize that the low pressure admits air through this third through-hole when low back pressure. The utility model discloses the scheme not only is applicable to above-mentioned embodiment, still is applicable to the single cylinder, three jars and above compressor.

The utility model also provides an air conditioner, it includes preceding arbitrary compressor. The utility model discloses a pump body subassembly inside compressor housing assembly is formed with the pump body chamber, and sealed partition between the casing chamber, can be when the casing chamber is high backpressure, admit air from the pump body chamber and accomplish gas-liquid separation and breathe in and get into the pump body in the pump body chamber and compress, gas-liquid separator's structure has still been saved effectively when accomplishing gas-liquid separation, make the structure volume very reduce, the quality reduces, and can be when the casing chamber is low backpressure, exhaust from the pump body chamber and accomplish oil-gas separation in the pump body chamber and discharge the casing assembly outside, oil-gas separation's structure has still been saved effectively when accomplishing oil-gas separation, also can make the structure volume very reduce equally, the quality reduces, can both guarantee to carry out gas-liquid separation and oil-gas separation can effectively reduce the volume and the quality of compressor; the liquid separator structure (oil-gas separation structure) and the pump body structure are integrally designed, so that the volume of the compressor can be reduced, the quality of the compressor is reduced, and the gas-liquid separation effect and the oil-gas separation effect are achieved.

The utility model provides a built-in knockout compressor. The design of integrating the liquid separator structure (oil-gas separation structure) with the pump body structure can reduce the volume of the compressor, reduce the mass of the compressor and play a role in gas-liquid separation, and meanwhile, the design of the spiral guide structure in the inner cavity of the lower flange cover enables gas to rotate spirally, so that the tangential vibration of the compressor is reduced, and the noise is favorably improved; the high back pressure compressor, the groove structural design of the pump body part improves the heat exchange speed, cool the pump body and gasify the liquid refrigerant; the low back pressure compressor, motor heating mix the refrigerator, and the refrigerated liquid refrigerant of cooling motor gasification simultaneously, improves the cryogenic separation efficiency of exhaust gas-oil mixture, reduces the oil circulation rate of compressor. The compressor has light weight and small volume, and can reduce noise. When the compressor is in high back pressure, the pump body of the compressor is provided with a gas-liquid separation structure, so that gas-liquid separation can be carried out on the sucked gas, the effect of reducing the temperature of the pump body is obvious, and the reliability is good; when the compressor is low backpressure, the temperature effect of reducing the motor is obvious, and its pump body has oil separating structure, improves oil-gas separation efficiency, reduces the oil circulation rate of compressor.

The gas-liquid separation structure of the pump body component consists of an upper flange, a lower flange cover, a cylinder and a partition plate, and the structure can perform gas-liquid separation on the air suction and cool the pump body to resist the tangential vibration of the pump body; the outer walls of the upper flange, the lower flange, the cylinder and the partition plate are provided with wire grooves and spiral grooves; the lower flange cover is of a cylinder structure, and a spiral partition plate is arranged on the inner wall of the lower flange cover; the lower flange cover of the low back pressure compressor is provided with an oil hole; the air suction (or exhaust) pipe on the shell body matched with the pump body is in non-centering design, and the direction of the air suction (or exhaust) pipe is opposite to the rotation direction of the crankshaft.

The utility model solves the following technical problems

The volume of the compressor is reduced; reducing the mass of the compressor; the tangential vibration of the compressor is reduced, and the noise is favorably improved; the mixed refrigerant is heated before the air cylinder of the compressor sucks, so that the separation efficiency of the gas-liquid mixed refrigerant is improved; when the compressor has high back pressure, the heat exchange speed between the pump body and the gas-liquid mixed refrigerant can be increased, and the temperature of the pump body is reduced; when the compressor has low back pressure, the heat exchange speed of the motor and the gas-liquid mixed refrigerant can be increased, and the temperature of the motor is reduced; when the compressor is in low back pressure, the oil-gas separation efficiency of exhaust is improved, and the oil circulation rate of the compressor is reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (13)

1. A compressor, characterized by: the method comprises the following steps:

casing subassembly (1), casing subassembly (1) inside is provided with pump body subassembly (3), just casing subassembly (1) inside is formed with casing chamber (100), pump body subassembly (3) be formed with casing chamber (100) sealed pump body chamber (200), make and get into fluid in the pump body chamber (200) can carry out gas-liquid separation or oil-gas separation.

2. The compressor of claim 1, wherein:

the pump body assembly comprises a pump body (300), the pump body cavity (200) is located on the radial outer side of the pump body (300), fluid entering the pump body cavity (200) can exchange heat with the outer wall of the pump body (300), and the pump body (300) comprises a cylinder and a rotor.

3. The compressor of claim 2, wherein:

the pump body assembly further comprises a flange, the flange comprises an upper flange (5), a lower flange (13) and a lower flange cover (14), the lower flange cover (14) is arranged at the end face of the lower flange (13), the lower flange cover (14) is of a cylinder structure, the side wall of the lower flange cover faces the direction of the upper flange (5), the lower flange cover extends and is connected with the upper flange (5), the pump body cavity (200) is formed in a space surrounded between the lower flange cover (14) and the upper flange (5), and the pump body (300) is located inside the pump body cavity (200).

4. The compressor of claim 2, wherein:

the pump body assembly further comprises a flange, the flange comprises an upper flange (5), a lower flange (13) and a lower flange cover (14), the lower flange cover (14) is arranged at the end face of the lower flange (13), the upper flange (5) is of a cylinder structure, the side wall of the upper flange extends towards the direction of the lower flange cover (14), the upper flange (5) is connected with the lower flange cover (14), the pump body cavity (200) is formed in a space surrounded by the lower flange cover (14) and the upper flange (5), and the pump body (300) is located inside the pump body cavity (200).

5. A compressor according to claim 3, wherein:

the peripheral wall of the lower flange cover (14) is provided with a first through hole (141), the position, opposite to the first through hole (141), of the shell assembly (1) is further provided with a second through hole (111), and the pump body cavity (200) can suck air from the outside of the shell assembly (1) or exhaust air to the outside of the shell assembly (1) through the first through hole (141) and the second through hole (111).

6. A compressor according to any one of claims 3 to 5, wherein:

at least one wire groove (17) along the axial direction is arranged on the outer wall of at least one of the pump body (300) and the lower flange (13); and/or the pump body (300) further comprises a crankshaft (4), at least one spiral groove (18) spirally wound is arranged on the outer wall of at least one of the pump body (300) and the lower flange (13), and the winding direction of the spiral groove (18) is opposite to the rotation direction of the crankshaft (4).

7. The compressor of claim 6, wherein:

when the first via hole (141) and the second via hole (111) are included: an air suction pipe (25) is arranged in the first through hole (141) and the second through hole (111), and the axial direction of the air suction pipe (25) is the same as the tangential direction of the air suction pipe extending to the position of the spiral groove (18).

8. A compressor according to any one of claims 2-5, wherein:

the pump body (300) further comprises a crankshaft (4), at least one spiral partition plate (20) spirally wound is arranged in the pump body cavity (200), and the winding direction of the spiral partition plate (20) is opposite to the rotation direction of the crankshaft (4).

9. The compressor of claim 8, wherein:

when the flange comprises a lower flange (13) and a lower flange cover (14), and the lower flange cover (14) is of a cylindrical structure, the radial outer side of the spiral partition plate (20) is connected with the lower flange cover (14), and the radial inner side of the spiral partition plate is connected with the pump body (300) and/or the lower flange (13).

10. The compressor of claim 9, wherein:

the spiral clapboard (20) and the lower flange cover (14) are integrally formed, or are in welded connection, or are in interference fit, or are in snap connection.

11. A compressor according to claim 9 or 10, wherein:

the spiral baffle is further provided with an oil gathering hole (23), the bottom of the lower flange cover (14) is further provided with an oil drainage hole (24), and the oil drainage hole (24) is further connected with a pressure drop device.

12. The compressor according to any one of claims 1 to 5, wherein:

the top of the shell assembly (1) is provided with a third through hole (112) which can suck air from the outside of the shell assembly (1) or discharge air to the outside of the shell assembly (1); and/or the compressor is a rotor compressor.

13. An air conditioner, characterized in that: comprising a compressor according to any one of claims 1-12.

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