CN117189598A - Compressor and refrigeration equipment - Google Patents

Abstract

The invention discloses a compressor and refrigeration equipment, and relates to the technical field of compressors. The central line in first gleitbretter groove is L1, and the line between the center of first enthalpy-increasing subassembly and the rotation center of bent axle is L2, and the contained angle between L1 and the L2 is a, satisfies: a is more than or equal to 10 degrees and less than or equal to 180 degrees. Therefore, when a is set in the above range, the interference of the structure can be avoided, and the air supplementing amount can be increased, so that the compressor can be suitable for occasions of low-temperature heating or high-temperature refrigeration.

Description

Compressor and refrigeration equipment

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor and refrigeration equipment.

Background

In the related art, in order to improve the effect of the compressor in low-temperature heating or high-temperature refrigeration, a pump body assembly of the compressor generally adopts a two-stage compression or multi-stage compression mode to compress the refrigerant so as to enable the refrigerant to have higher pressure, and in order to improve the displacement, the compressor can also be designed with an enthalpy increasing assembly for supplementing the refrigerant, so that the compressor can be suitable for occasions of low-temperature heating or high-temperature refrigeration. However, the unreasonable connection position of the enthalpy increasing component and the pump body component easily causes insufficient air supplementing quantity, and the enthalpy increasing effect is difficult to be achieved.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the compressor, and the air supplementing quantity can be improved by reasonably designing the relative position between the enthalpy increasing component and the pump body component.

The invention also provides refrigeration equipment with the compressor.

An embodiment of a compressor according to a first aspect of the present invention includes: the pump body assembly comprises a first cylinder, a second cylinder and a crankshaft, wherein a first compression cavity is arranged in the first cylinder, a second compression cavity is arranged in the second cylinder, and the first compression cavity is communicated with the second compression cavity through an intermediate cavity; the first enthalpy-increasing component is connected with the first cylinder and is used for conveying a refrigerant to the first compression cavity; the first cylinder is provided with a first sliding vane groove, the central line of the first sliding vane groove is L1 along the projection plane of the axial projection of the crankshaft, the connecting line between the center of the first enthalpy increasing component and the rotation center of the crankshaft is L2, the L1 is used as a starting point and rotates along the opposite direction of the rotation direction of the crankshaft, and the included angle between the L1 and the L2 is a, so that the angle of 10 degrees is more than or equal to a and less than or equal to 180 degrees is satisfied.

The compressor provided by the embodiment of the invention has at least the following beneficial effects:

the first cylinder of the pump body assembly is provided with a first compression cavity, the second cylinder is provided with a second compression cavity, and the first compression cavity is communicated with the second compression cavity through the middle cavity, so that the refrigerant compressed by the first compression cavity is conveyed to the second compression cavity through the middle cavity, or the refrigerant compressed by the second compression cavity is conveyed to the first compression cavity through the middle cavity. The first enthalpy increasing component is connected with the first cylinder, and the included angle between the L1 and the L2 is a, so that the following conditions are satisfied: a is more than or equal to 10 degrees and less than or equal to 180 degrees. When a is smaller than 10 °, the exhaust port of the first enthalpy increasing member and the exhaust port of the first cylinder are too close, and interference is easily generated structurally. And the first compression cavity of the first cylinder is divided into an air suction area and a compression area, if a is larger than 180 degrees, the exhaust port of the first enthalpy increasing component is positioned in the air suction area, and in order to ensure that air can be taken in, the exhaust pressure of the first enthalpy increasing component is larger than the pressure in the air suction area, so that part of refrigerant can be discharged from the air inlet of the first cylinder, and the air supplementing amount is reduced. Therefore, the relative positions of the exhaust port of the first enthalpy-increasing component and the first compression cavity are reasonably designed, interference of the structure can be avoided, and the air supplementing quantity can be increased, so that the compressor can be suitable for occasions of low-temperature heating or high-temperature refrigeration.

According to some embodiments of the invention, the compressor further comprises a second enthalpy increasing assembly connected to the intermediate chamber and for delivering a refrigerant to the intermediate chamber; the pressure of the first compression cavity is smaller than the pressure of the second compression cavity; the second cylinder is provided with a second sliding vane groove, the second sliding vane groove is arranged on a projection surface of the axial projection of the crankshaft, the central line of the second sliding vane groove is L7, a connecting line between the center of the second enthalpy increasing component and the rotation center of the crankshaft is L6, the L7 is used as a starting point and rotates along the rotation direction of the crankshaft, and an included angle between the L7 and the L6 is b, so that the following conditions are satisfied: b is more than or equal to 20 degrees and less than or equal to 350 degrees.

According to some embodiments of the present invention, on a projection plane of the axial projection of the crankshaft, an angle between a line L2 between a center of the first enthalpy increasing component and a rotation center of the crankshaft, and a line L6 between a center of the second enthalpy increasing component and a rotation center of the crankshaft is c, which satisfies: c is more than or equal to 10 degrees and less than or equal to 180 degrees.

According to some embodiments of the invention, the intermediate chamber comprises a plurality of chambers, the plurality of chambers being in communication via a communication channel, the exhaust port of the first compression chamber being configured to exhaust to one of the chambers or to the plurality of chambers, respectively.

According to some embodiments of the invention, the pump body assembly further comprises a diaphragm member coupled between the first cylinder and the second cylinder, one of the cavities being formed in the diaphragm member.

According to some embodiments of the invention, the partition member comprises an upper partition and a lower partition fixedly connected, the upper partition is fixedly connected with the lower end face of the second cylinder, the lower partition is fixedly connected with the upper end face of the first cylinder, and a first valve seat is arranged in the cavity, and the first valve seat is provided with an exhaust port of the first compression cavity.

According to some embodiments of the invention, the pump body assembly further comprises a lower bearing and a lower muffler connected to a lower end surface of the first cylinder, the lower bearing is provided with a second valve seat, the second valve seat is provided with an exhaust port of the first compression chamber, and the lower muffler and the lower bearing enclose to form another chamber.

According to some embodiments of the invention, the first compression chamber is provided with a plurality of exhaust ports, and the exhaust ports of the plurality of first compression chambers are communicated with the middle chamber.

According to some embodiments of the invention, the second compression chamber is provided with a plurality of air inlets, and the air inlets of the second compression chambers are communicated with the middle chamber.

A refrigeration appliance according to an embodiment of the second aspect of the present invention includes the compressor described in the above embodiment.

The refrigeration equipment provided by the embodiment of the invention has at least the following beneficial effects:

by adopting the compressor of the embodiment of the first aspect, the first cylinder is provided with the first compression cavity through the first cylinder provided with the pump body assembly, the second cylinder is provided with the second compression cavity, and the first compression cavity is communicated with the second compression cavity through the middle cavity, so that the refrigerant compressed by the first compression cavity is conveyed to the second compression cavity through the middle cavity, or the refrigerant compressed by the second compression cavity is conveyed to the first compression cavity through the middle cavity. The first enthalpy increasing component is connected with the first cylinder, and the included angle of the connecting line between the central line of the first sliding vane groove of the first cylinder and the central line of the axial direction of the first enthalpy increasing component and the axis of the crankshaft is a, so that the following conditions are satisfied: a is more than or equal to 10 degrees and less than or equal to 180 degrees. When a is smaller than 10 °, the exhaust port of the first enthalpy increasing member and the exhaust port of the first cylinder are too close, and interference is easily generated structurally. And the first compression cavity of the first cylinder is divided into an air suction area and a compression area, if a is larger than 180 degrees, the exhaust port of the first enthalpy increasing component is positioned in the air suction area, and in order to ensure that air can be taken in, the exhaust pressure of the first enthalpy increasing component is larger than the pressure in the air suction area, so that part of refrigerant can be discharged from the air inlet of the first cylinder, and the air supplementing amount is reduced. Therefore, the relative positions of the exhaust port of the first enthalpy-increasing component and the first compression cavity are reasonably designed, interference of the structure can be avoided, and the air supplementing quantity can be increased, so that the compressor can be suitable for occasions of low-temperature heating or high-temperature refrigeration.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view showing a structure of a compressor according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a compressor according to another embodiment of the present invention;

FIG. 3 is a sectional view of a compressor according to another embodiment of the present invention;

FIG. 4 is a top view of a compressor according to one embodiment of the present invention;

FIG. 5 is a simplified schematic diagram of a first cylinder according to one embodiment of the invention;

FIG. 6 is a top view of a compressor according to one embodiment of the present invention;

fig. 7 is a simplified schematic diagram of a divider member in accordance with one embodiment of the invention.

Reference numerals:

a compressor 1000;

a pump body assembly 100; a first cylinder 110; low pressure compression chamber 111; a suction zone 112; a compression zone 113; a first air inlet 114; a first exhaust port 115; a first slider groove 116; a lower bearing 120; a lower muffler 130; a first cavity 131; a communication passage 140; an upper bearing 150; a second cylinder 160; a high-pressure compression chamber 161; a second slide groove 162; an upper muffler 170; a third cavity 171; a divider member 190; a second cavity 191; an upper partition 192; a lower partition 193; an intermediate chamber 194; a second air inlet 195; a second exhaust port 196;

a housing 200; a lumen 210; an outlet pipe 220;

a reservoir 300; an exhaust pipe 310;

a motor assembly 400; a stator 410; a rotor 420; a crankshaft 430; a first piston 431; a second piston 432;

a first enthalpy increasing assembly 500; a first housing 510;

a second enthalpy increasing assembly 600; a second housing 610.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

The compressor can be used for refrigerating equipment or heating equipment, such as refrigerators, air conditioners and the like, and can compress low-temperature and low-pressure refrigerants into high-temperature and high-pressure refrigerants to provide power for the circulation of a refrigerating system. When the compressor finishes the same work load due to the fact that the temperature difference between the temperature of the outdoor heat exchanger and the temperature of the surrounding environment becomes small when the compressor heats in a low-temperature environment or cools in a high-temperature environment, the refrigerating or heating capacity is greatly reduced. Therefore, the compressor can compress the refrigerant in a multistage compression mode, the multistage compression can enable the compressor to have higher volumetric efficiency, the refrigerant pressure discharged by the pump body assembly is improved, and the compressor can achieve a better effect in the low-temperature heating and high-temperature refrigerating occasions.

For example, referring to fig. 1 and 2, a compressor 1000 according to an embodiment of the present invention includes a housing 200, a pump body assembly 100, a motor assembly 400, and a liquid reservoir 300, wherein the housing 200 has an inner cavity 210, and an air outlet pipe 220 for discharging air is provided at an upper end of the housing 200. The pump body assembly 100 is mounted to the inner cavity 210, and the reservoir 300 is located outside the housing 200 and is connected to the pump body assembly 100 through the exhaust pipe 310. The motor assembly 400 includes a stator 410 and a rotor 420, the stator 410 being fixedly coupled to an inner wall of the housing 200, the rotor 420 being positioned between the stators 410.

Referring to fig. 2, the pump body assembly 100 includes a lower bearing 120, a first cylinder 110, a diaphragm member 190, a second cylinder 160, an upper bearing 150, and a crankshaft 430. The motor assembly 400 can drive the crankshaft 430 to rotate, and along the axial direction of the crankshaft 430, the crankshaft 430 comprises a first eccentric portion and a second eccentric portion which are arranged at intervals, wherein the first eccentric portion is sleeved with a first piston 431, and the second eccentric portion is sleeved with a second piston 432. The lower bearing 120 is connected to the lower end surface of the first cylinder 110, the first cylinder 110 is formed with a first compression chamber, the first piston 431 is rotatably disposed in the first compression chamber, and the liquid reservoir 300 is connected to the first cylinder 110. The partition member 190 is provided on a side of the first cylinder 110 facing away from the lower bearing 120, and the second cylinder 160 is connected to a side of the partition member 190 facing away from the first cylinder 110, the partition member 190 having a function of partitioning the first cylinder 110 and the second cylinder 160. The second cylinder 160 is formed with a second compression chamber in which the second piston 432 is rotatably disposed. The pump body assembly 100 is provided with an intermediate chamber 194, and the exhaust port of the first compression chamber communicates with the intake port of the second compression chamber through the intermediate chamber 194. The upper bearing 150 is connected to the upper end surface of the second cylinder 160, and the crankshaft 430 is inserted through the upper bearing 150 and the lower bearing 120, so as to reduce friction force when the crankshaft 430 rotates, and ensure stable operation of the crankshaft 430. The first compression chamber is a low-pressure compression chamber 111, and the second compression chamber is a high-pressure compression chamber 161. In another embodiment, the first compression chamber may be the high pressure compression chamber 161, and the second compression chamber may be the low pressure compression chamber 111, and for convenience of explanation, the first compression chamber is the low pressure compression chamber 111, and the second compression chamber is the high pressure compression chamber 161 in all subsequent embodiments unless otherwise specified.

Therefore, when the compressor 1000 is operated, the refrigerant having a low temperature and a low pressure enters the accumulator 300. The liquid reservoir 300 can reduce the liquid refrigerant from entering the pump body assembly 100, so as not to cause liquid impact. The gaseous refrigerant enters the low pressure compression chamber 111 through the discharge pipe 310 of the accumulator 300. When the crankshaft 430 rotates, the first piston 431 is driven to rotate in the low-pressure compression cavity 111, so that the low-temperature low-pressure refrigerant is compressed at one stage, then is discharged to the middle cavity 194 through the exhaust port of the low-pressure compression cavity 111, enters the high-pressure compression cavity 161 through the middle cavity 194 for two-stage compression, finally enters the inner cavity 210 of the shell 200, is further heated by the stator 410 and the rotor 420, becomes the high-temperature high-pressure refrigerant, and is finally discharged from the air outlet pipe 220 of the shell 200. By adopting the two-stage compression mode, the pressure of the refrigerant can be improved, after the initial pressure of the refrigerant after the primary compression is improved to a certain degree, the workload required by the secondary compression is reduced, so that the energy efficiency of the compressor 1000 can be improved, and the compressor 1000 can play a good role in low-temperature heating and high-temperature refrigeration occasions.

In order to increase the displacement of the compressor 1000 to increase the refrigerating capacity of the compressor 1000 in a high temperature environment or the heating capacity in a low temperature environment, referring to fig. 4, in an embodiment of the present invention, the compressor 1000 further includes a first enthalpy increasing assembly 500, and the first enthalpy increasing assembly 500 is connected to the first cylinder 110. The first enthalpy-increasing member 500 serves to supplement air, and is capable of feeding a refrigerant into the low-pressure compression chamber 111 to increase the displacement of the low-pressure compression chamber 111. The first cylinder 110 is provided with a first vane groove 116, and the first vane groove 116 may be disposed along a radial direction of the housing 200, for example, parallel to a sliding direction of the vane, or perpendicular to an axis L3 of the crankshaft 430, with a center line L1 of the first vane groove 116 on a projection plane projected along an axial direction of the crankshaft 430. The line between the center of the first enthalpy-increasing assembly 500 and the rotational center of the crankshaft 430 is L2, the center of the first enthalpy-increasing assembly 500 is located on the axial center line L4 of the first enthalpy-increasing assembly 500, and the rotational center of the crankshaft 430 is located on the axis L3 of the crankshaft 430. Taking L1 as a starting point and rotating along the reverse direction of the rotation direction of the crankshaft 430, the included angle between L1 and L2 is a, which satisfies the following conditions: a is more than or equal to 10 and less than or equal to 180, for example, a=20°, a=50°, a=100°, and a=150°. The axial direction of the first enthalpy increasing assembly 500 may be understood as the up-down direction in fig. 2, where the center line L4 of the first enthalpy increasing assembly 500 is the center line of the first casing 510 of the first enthalpy increasing assembly 500, and the L4 extends along the up-down direction.

For convenience of explanation, referring to fig. 5, fig. 5 is a simplified schematic diagram of a compressor 1000, and a dotted arrow in fig. 5 indicates a flow direction of a refrigerant. The first vane groove 116 is provided with a vane connected by a spring, and the vane can be kept in abutment with the first piston 431 under the action of the elastic force of the spring, so that the first piston 431 and the vane divide the low pressure compression chamber 111 into the suction area 112 and the compression area 113, and the sizes of the suction area 112 and the compression area 113 can be gradually changed in the rotation process of the first piston 431. Since the interval of 0 ° to 10 ° is the first exhaust port 115 of the low pressure compression chamber 111 in the direction opposite to the rotation direction of the crankshaft 430 with the center line L1 of the first vane groove 116 being a 0 ° line, when a is less than 10 °, the distance between the exhaust port of the first enthalpy increasing module 500 and the first exhaust port 115 of the low pressure compression chamber 111 is too short, and interference is easily generated structurally. While the interval of 0 ° to 180 ° is mainly the compression region 113, the interval of 180 ° to 360 ° is the suction region 112, and when a is greater than 180 °, the exhaust port of the first enthalpy increasing component 500 is located in the suction region 112, so as to ensure that the exhaust pressure of the first enthalpy increasing component 500 is greater than the pressure in the suction region 112, and thus a portion of the refrigerant is discharged from the first intake port 114 of the first cylinder 110, and the air supplementing amount is reduced. Therefore, the relative positions of the exhaust port of the first enthalpy-increasing component 500 and the low-pressure compression chamber 111 are reasonably designed, so that interference of the structure can be avoided, and the air supplementing amount is increased, so that the compressor 1000 can be suitable for occasions of low-temperature heating or high-temperature refrigeration.

In another embodiment of the present invention, when the first compression chamber is the high pressure compression chamber 161, i.e. the first enthalpy increasing component 500 is used for supplementing the refrigerant in the high pressure compression chamber 161. The relative positions of the first enthalpy increasing member 500 and the high pressure compression chamber 161 are also within the range of the limit a, and the effect is similar to that of the first compression chamber being the low pressure compression chamber 111, and will not be described again.

To further increase the displacement of the compressor 1000, referring to fig. 3, in the embodiment of the present invention, the compressor 1000 further includes a second enthalpy increasing assembly 600, the second enthalpy increasing assembly 600 is connected to the intermediate chamber 194, the second enthalpy increasing assembly 600 is used for delivering refrigerant into the intermediate chamber 194, and the pressure in the low pressure compression chamber 111 is smaller than the pressure in the high pressure compression chamber 161. Therefore, the refrigerant compressed in the low-pressure compression chamber 111 is discharged to the intermediate chamber 194, and the second enthalpy-increasing component 600 supplements the refrigerant in the intermediate chamber 194 and mixes with the original refrigerant, so that the air intake of the high-pressure compression chamber 161 can be increased, and the original refrigerant can be cooled, so that the required inlet force of the high-pressure compression chamber 161 for compressing the refrigerant is reduced, and the energy efficiency of the compressor 1000 is improved.

Referring to fig. 6, in the embodiment of the present invention, the second cylinder 160 is provided with a second vane groove 162, and a center line of the second vane groove 162 is L7 on a projection plane projected along an axial direction of the crankshaft 430, and the L7 is extended in a radial direction of the housing 200, for example, parallel to a sliding direction of the vane and perpendicular to an axis L3 of the crankshaft 430. The line connecting the center of the second enthalpy increasing assembly 600 and the rotation center of the crankshaft 430 is L6, and the center of the second enthalpy increasing assembly 600 is located on the center line L5 in the axial direction of the second enthalpy increasing assembly 600. Starting from L7 and rotating in the direction of rotation of crankshaft 430, the angle between L7 and L6 is b, satisfying 20 deg. b.ltoreq.350 deg., such as b=30°, b=90°, b=150°, b=210°. The axial direction of the second enthalpy increasing assembly 600 may be understood as the up-down direction in fig. 3, where the center line L5 of the second enthalpy increasing assembly 600 is the center line of the second casing 610 of the second enthalpy increasing assembly 600, and the L5 extends along the up-down direction.

Referring to fig. 7, a simplified schematic diagram of the partition member 190 is shown, and the dashed arrow in fig. 7 indicates the flow direction of the refrigerant. The partition member 190 is provided with an intermediate chamber 194 therein, the intermediate chamber 194 is annular and is provided with a second air outlet 196 and a second air inlet 195 at both ends thereof, the second air inlet 195 is communicated with the first air outlet 115 of the low-pressure compression chamber 111, and the second air outlet 196 is communicated with the air inlet of the high-pressure compression chamber 161. The inlet port of the second enthalpy increasing member 600 communicates with the intermediate chamber 194, thereby supplementing the intermediate chamber 194 with refrigerant. Therefore, the region of 0 ° to 20 ° is the position where the second exhaust port 196 is located, and is a negative pressure region. When b is smaller than 20 °, the supplementary refrigerant is directly discharged from the second exhaust port 196, so that the air supply is disabled, and the effect of reducing the temperature of the refrigerant in the intermediate chamber 194 is difficult to achieve. The region of 350 ° to 360 ° is the position of the second air inlet 195, where the distance from the air outlet of the high-pressure compression chamber 161 is relatively short, and the temperature is relatively high, which easily causes the temperature of the supplementary refrigerant to rise, and the effect of reducing the temperature of the refrigerant in the intermediate chamber 194 is difficult to be achieved. Therefore, the relative positions of the exhaust port of the second enthalpy-increasing component 600 and the intermediate chamber 194 are reasonably designed, so that the refrigerant discharged by the second enthalpy-increasing component 600 and the refrigerant in the intermediate chamber 194 can be mixed and then enter the high-pressure compression chamber 161, the temperature of the refrigerant in the intermediate chamber 194 can be reduced, and the force required by the high-pressure compression chamber 161 for compressing the refrigerant is reduced.

Referring to fig. 4, in the embodiment of the present invention, with respect to the axis L3 of the crankshaft 430, an angle c between a line L2 between the center of the first enthalpy increasing assembly 500 and the rotation center of the crankshaft 430, and a line L6 between the center of the second enthalpy increasing assembly 600 and the rotation center of the crankshaft 430 is satisfied: 10 ° -c-180 °, e.g. c=30°, c=90°, c=120°, c=150°. It will be appreciated that assuming c is less than 10 or greater than 180, the distance between the first and second enthalpy increasing assemblies 500, 600 is too small to be installed because the two are structurally susceptible to interference. Therefore, the positions of the first enthalpy-increasing component 500 and the second enthalpy-increasing component 600 are reasonably designed, so that the first enthalpy-increasing component 500 and the second enthalpy-increasing component 600 can be conveniently installed, the pipeline arrangement is facilitated, and the installation efficiency is improved.

In an embodiment of the present invention, the gaseous refrigerant for supplementing air of the first enthalpy increasing component 500 may be provided through a flash evaporator, which is disposed in a circulation loop of a refrigeration system or a heating system. Taking a heating system as an example: after the liquid refrigerant releases heat through the condenser, the liquid refrigerant flows through the first throttling device, the liquid refrigerant is changed into a refrigerant with mixed gas and liquid under the action of the first throttling device, the refrigerant with mixed gas and liquid enters the flash evaporator, the gaseous refrigerant flows to the first enthalpy-increasing component 500 along the gas outlet of the flash evaporator, the liquid refrigerant flows out from the liquid outlet of the flash evaporator and enters the evaporator after passing through the second throttling device, and finally the refrigerant with absorbed heat enters the low-pressure compression cavity 111 through the liquid reservoir 300. The refrigerant used for supplementing air in the second enthalpy-increasing component 600 may also be provided by flash evaporators, that is, two flash evaporators may be provided in the refrigeration system or the heating system, so as to respectively deliver gaseous refrigerant to the first enthalpy-increasing component 500 and the second enthalpy-increasing component 600. In another embodiment of the present invention, the flash evaporator may be replaced by a plate heat exchanger, that is, the refrigerant used for supplementing air in the first enthalpy increasing component 500 and the second enthalpy increasing component 600 may also be provided by the plate heat exchanger, and an appropriate scheme is specifically selected according to the actual situation.

In the embodiment of the present invention, intermediate chamber 194 includes a plurality of chambers that are communicated through communication passage 140, and the exhaust port of low-pressure compression chamber 111 is configured to exhaust to one of the chambers or to the plurality of chambers, respectively. For example, referring to fig. 2, two of the plurality of cavities are a first cavity 131 and a second cavity 191, respectively. The pump body assembly 100 further includes a lower muffler 130, the lower muffler 130 is connected to the lower bearing 120, a first cavity 131 is formed between the lower muffler 130 and the lower bearing 120, a second cavity 191 is formed in the partition member 190, and the first cavity 131 are communicated through the communication channel 140. Since the displacement of low-pressure compression chamber 111 is generally larger than that of high-pressure compression chamber 161, low-pressure compression chamber 111 may simultaneously discharge gas to first and second chambers 131 and 191 and then mix into high-pressure compression chamber 161 to improve the discharge efficiency. Alternatively, in another embodiment, the low pressure compression chamber 111 may discharge the refrigerant to the first chamber 131 and then enter the second chamber 191 through the communication channel 140, and an appropriate scheme is selected according to practical situations.

With continued reference to FIG. 2, in an embodiment of the invention, the divider member 190 includes an upper divider 192 and a lower divider 193, with the upper divider 192 being fixedly connected to the lower divider 193. The upper partition 192 is also fixedly connected to the lower end surface of the second cylinder 160, and the lower partition 193 is fixedly connected to the upper end surface of the first cylinder 110. A groove is formed in the side of the upper partition plate 192 facing the lower partition plate 193, and a second cavity 191 is formed by enclosing a wall surface of the groove and a wall surface of the lower partition plate 193 facing the side of the upper partition plate 192. The lower partition 193 is provided with a first valve seat provided with an exhaust port of the low pressure compression chamber 111; the lower bearing 120 is provided with a second valve seat provided with exhaust ports of the low pressure compression chamber 111, that is, two exhaust ports of the low pressure compression chamber 111, and the low pressure compression chamber 111 discharges the refrigerant to the first chamber 131 and the second chamber 191 through the two exhaust ports. Of course, the number of the exhaust ports of the low-pressure compression chamber 111 may be one, three, four, or the like, and an appropriate scheme may be selected according to practical situations.

Referring to fig. 3, in the embodiment of the present invention, the pump body assembly 100 further includes an upper muffler 170, the upper muffler 170 is connected with the upper bearing 150, and a third cavity 171 is formed between the upper muffler 170 and the upper bearing 150, and the high pressure compression chamber 161 can discharge the compressed refrigerant to the third cavity 171 and finally enter the inner cavity 210 of the housing 200. The upper silencer 170 can reduce noise during refrigerant discharge and improve the use experience of users.

In the embodiment of the present invention, the low pressure compression chamber 111 is provided in plurality, and the exhaust ports of the plurality of low pressure compression chambers 111 are all communicated with the intermediate chamber 194. For example, a plurality of low-pressure compression chambers 111 are provided in order in the up-down direction. In the embodiment of the present invention, a plurality of high-pressure compression chambers 161 may be provided, and the air inlets of the plurality of high-pressure compression chambers 161 are all communicated with the intermediate chamber 194, and the plurality of high-pressure compression chambers 161 are sequentially provided in the up-down direction. It is understood that the provision of the plurality of low pressure compression chambers 111 or the plurality of high pressure compression chambers 161 can improve the compression efficiency of the refrigerant.

The refrigerating device according to an embodiment of the present invention includes the compressor 1000 according to the above embodiment, and the refrigerating device may be a central air conditioner, an integral air conditioner, a split air conditioner, an air duct machine, a window machine, or the like. Through adopting the compressor 1000 of the above-mentioned embodiment, the relative position of the exhaust port of the first enthalpy-increasing component 500 and the low-pressure compression chamber 111 is reasonably designed, so that the interference of the structure can be avoided, and the air supplementing amount is increased, so that the compressor 1000 can be suitable for occasions of low-temperature heating or high-temperature refrigeration.

Since the refrigeration equipment adopts all the technical solutions of the compressor 1000 in the above embodiments, at least all the beneficial effects brought by the technical solutions in the above embodiments are provided, and will not be described in detail herein.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.

Claims (10)

1. A compressor, comprising:

the pump body assembly comprises a first cylinder, a second cylinder and a crankshaft, wherein a first compression cavity is arranged in the first cylinder, a second compression cavity is arranged in the second cylinder, and the first compression cavity is communicated with the second compression cavity through an intermediate cavity;

the first enthalpy-increasing component is connected with the first cylinder and is used for conveying a refrigerant to the first compression cavity;

the first cylinder is provided with a first sliding vane groove, the central line of the first sliding vane groove is L1 along the projection plane of the axial projection of the crankshaft, the connecting line between the center of the first enthalpy increasing component and the rotation center of the crankshaft is L2, the L1 is used as a starting point and rotates along the opposite direction of the rotation direction of the crankshaft, and the included angle between the L1 and the L2 is a, so that the angle of 10 degrees is more than or equal to a and less than or equal to 180 degrees is satisfied.

2. The compressor as set forth in claim 1, wherein: the compressor further comprises a second enthalpy-increasing component which is connected to the intermediate cavity and used for conveying the refrigerant to the intermediate cavity; the pressure of the first compression cavity is smaller than the pressure of the second compression cavity; the second cylinder is provided with a second sliding vane groove, the second sliding vane groove is arranged on a projection surface of the axial projection of the crankshaft, the central line of the second sliding vane groove is L7, a connecting line between the center of the second enthalpy increasing component and the rotation center of the crankshaft is L6, the L7 is used as a starting point and rotates along the rotation direction of the crankshaft, and an included angle between the L7 and the L6 is b, so that the following conditions are satisfied: b is more than or equal to 20 degrees and less than or equal to 350 degrees.

3. The compressor as set forth in claim 2, wherein: on the projection plane of the axial projection along the crankshaft, an included angle between a connecting line L2 between the center of the first enthalpy increasing component and the rotation center of the crankshaft and a connecting line L6 between the center of the second enthalpy increasing component and the rotation center of the crankshaft is c, and the following conditions are satisfied: c is more than or equal to 10 degrees and less than or equal to 180 degrees.

4. The compressor as set forth in claim 1, wherein: the intermediate chamber includes a plurality of chambers, a plurality of the chambers are communicated through a communication passage, and the exhaust port of the first compression chamber is configured to exhaust to one of the chambers or to the plurality of chambers, respectively.

5. The compressor as set forth in claim 4, wherein: the pump body assembly further comprises a partition member connected between the first cylinder and the second cylinder, wherein one cavity is formed in the partition member.

6. The compressor as set forth in claim 5, wherein: the baffle piece includes fixed connection's last baffle and lower baffle, go up the baffle with the lower terminal surface fixed connection of second cylinder, lower baffle with the up end fixed connection of first cylinder, and be equipped with and be located first disk seat in the cavity, first disk seat is equipped with the gas vent of first compression chamber.

7. The compressor as set forth in claim 4, wherein: the pump body assembly further comprises a lower bearing and a lower silencer, wherein the lower bearing is connected to the lower end face of the first cylinder, the lower bearing is provided with a second valve seat, the second valve seat is provided with an exhaust port of the first compression cavity, and the lower silencer and the lower bearing enclose to form another cavity.

8. The compressor as set forth in claim 1, wherein: the first compression cavity is provided with a plurality of exhaust ports, and the exhaust ports of the first compression cavity are communicated with the middle cavity.

9. The compressor as set forth in claim 1, wherein: the second compression chamber is provided with a plurality of air inlets of the second compression chamber are communicated with the middle chamber.

10. Refrigeration plant, its characterized in that: comprising a compressor according to any one of claims 1 to 9.