Compressors, refrigeration systems and refrigerators

Abstract

The present invention discloses a compressor, a refrigeration system and a refrigerator. The compressor includes: a cylinder and a microchannel heat exchanger. A compression chamber is defined in the cylinder, and a microchannel heat exchanger is arranged on the cylinder. The microchannel heat exchanger includes a heat exchanger body, and the heat exchanger body extends along the circumference of the cylinder. The heat exchanger body has a medium inlet and a medium outlet. According to the compressor of the embodiment of the present invention, the microchannel heat exchanger is arranged on the cylinder and the heat exchanger body of the microchannel heat exchanger extends along the circumference of the cylinder. During the operation of the compressor, the heat generated by the compression process is effectively taken away, the temperature in the compressor cylinder is effectively reduced, an approximate isothermal compression process is achieved, and the compression efficiency of the compressor is improved. In addition, by utilizing the characteristics of the microchannel heat exchanger with a small volume, a large heat exchange coefficient and a high heat exchange efficiency, the occupied space can be reduced under the condition of the volume limitation of the compressor, and the heat exchange efficiency can be improved at the same time.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration technology, and in particular to a compressor, a refrigeration system and a refrigerator. Background Art

[0002] The compressor is the heart of the refrigeration system cycle. The compressor sucks in low-temperature and low-pressure refrigerant and compresses it into high-temperature and high-pressure refrigerant. During the operation of the compressor, heat is generated, which increases the temperature of the cylinder, which increases the power consumption of the compressor and reduces the compression efficiency of the compressor. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a compressor that can effectively reduce the temperature in the cylinder during operation, achieve an approximately isothermal compression process, and improve the compression efficiency of the compressor.

[0004] The present invention also provides a refrigeration system having the compressor.

[0005] The invention also provides a refrigerator with the refrigeration system.

[0006] According to the first aspect of the present invention, the compressor comprises: a cylinder, wherein a compression chamber is defined in the cylinder; a microchannel heat exchanger, wherein the microchannel heat exchanger is arranged on the cylinder, and the microchannel heat exchanger comprises a heat exchanger body, wherein the heat exchanger body extends along the circumference of the cylinder, and wherein the heat exchanger body has a medium inlet and a medium outlet.

[0007] According to the compressor of the embodiment of the present invention, a microchannel heat exchanger is arranged on the cylinder and the heat exchanger body of the microchannel heat exchanger extends along the circumference of the cylinder. During the operation of the compressor, the heat generated by compression is transferred to the microchannel heat exchanger through the heat conduction of the cylinder, and the working medium with a lower temperature entering the medium inlet of the microchannel heat exchanger absorbs the heat and flows out from the medium outlet, thereby effectively taking away the heat generated by the compression process, effectively reducing the temperature in the compressor cylinder, realizing an approximate isothermal compression process, and improving the compression efficiency of the compressor. In addition, by utilizing the characteristics of the microchannel heat exchanger with a small volume, a large heat exchange coefficient, and a high heat exchange efficiency, the occupied space can be reduced under the condition of the volume limit of the compressor, and the heat exchange efficiency can be improved at the same time.

[0008] According to some embodiments of the present invention, the heat exchanger body is formed in a ring shape.

[0009] According to some embodiments of the present invention, the medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body, the microchannel heat exchanger includes an inlet pipe and an outlet pipe, the inlet pipe is arranged at the medium inlet and communicated with the medium inlet, the outlet pipe is arranged at the medium outlet and communicated with the medium outlet, a cylinder hole is formed in the peripheral wall of the cylinder, the cylinder hole extends along the circumference of the cylinder, the heat exchanger body is accommodated in the cylinder hole, a first avoidance groove and a second avoidance groove connected to the cylinder hole are formed on the outer peripheral wall of the cylinder, the first avoidance groove and the second avoidance groove are spaced apart from each other, at least a portion of the inlet pipe is accommodated in the first avoidance groove, and at least a portion of the outlet pipe is accommodated in the second avoidance groove.

[0010] According to some optional embodiments of the present invention, the inlet pipe includes a first inlet pipe section and a second inlet pipe section connected to each other, an angle is formed between the first inlet pipe section and the second inlet pipe section, the first inlet pipe section is arranged at the medium inlet and is connected to the medium inlet, and the second inlet pipe section extends along the axial direction of the cylinder; and / or, the outlet pipe includes a first outlet pipe section and a second outlet pipe section connected to each other, an angle is formed between the first outlet pipe section and the second outlet pipe section, the first outlet pipe section is arranged at the medium outlet and is connected to the medium outlet, and the second outlet pipe section extends along the axial direction of the cylinder.

[0011] According to some optional embodiments of the present invention, a spacer block is provided between the first avoidance groove and the second avoidance groove to separate the first avoidance groove and the second avoidance groove from each other.

[0012] According to some embodiments of the present invention, a first collecting chamber, a second collecting chamber and a plurality of medium flow channels arranged side by side and at intervals are defined in the heat exchanger body, the plurality of medium flow channels are located between the first collecting chamber and the second collecting chamber, each of the medium flow channels connects the first collecting chamber and the second collecting chamber, the medium inlet is formed on the side wall of the first collecting chamber, and the medium outlet is formed on the side wall of the second collecting chamber.

[0013] According to some optional embodiments of the present invention, the first collecting chamber and the second collecting chamber are arranged at intervals in the circumferential direction of the heat exchanger body, the plurality of medium flow channels are arranged in the axial direction of the heat exchanger body, and each of the medium flow channels extends along the circumferential direction of the heat exchanger body.

[0014] Optionally, a portion of the outer peripheral wall of the heat exchanger body protrudes in a direction away from the center of the heat exchanger body to form a first protrusion and a second protrusion, the first protrusion constituting a portion of the side wall of the first collecting cavity, and the second protrusion constituting a portion of the side wall of the second collecting cavity.

[0015] Further, the medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body, the microchannel heat exchanger includes an inlet pipe and an outlet pipe, the inlet pipe is arranged at the medium inlet and communicated with the medium inlet, the outlet pipe is arranged at the medium outlet and communicated with the medium outlet, a cylinder hole is formed in the peripheral wall of the cylinder, the cylinder hole extends along the circumference of the cylinder, the heat exchanger body is accommodated in the cylinder hole, a first avoidance groove and a second avoidance groove communicating with the cylinder hole are formed on the outer peripheral wall of the cylinder, the first avoidance groove and the second avoidance groove are spaced apart from each other, at least a portion of the inlet pipe is accommodated in the first avoidance groove, at least a portion of the outlet pipe is accommodated in the second avoidance groove, a first positioning notch is formed on the circumferential side wall of the first avoidance groove, a portion of the first protrusion fits in the first positioning notch, a second positioning notch is formed on the circumferential side wall of the second avoidance groove, a portion of the second protrusion fits in the second positioning notch.

[0016] Furthermore, a spacer block is provided between the first avoidance groove and the second avoidance groove to separate the first avoidance groove and the second avoidance groove from each other, a positioning groove is defined between the first protrusion and the second protrusion, and the spacer block cooperates with the positioning groove.

[0017] A refrigeration system according to an embodiment of a second aspect of the present invention comprises: a compressor according to an embodiment of the first aspect of the present invention.

[0018] According to the refrigeration system of the embodiment of the present invention, by providing the above-mentioned compressor, the compression efficiency of the compressor can be improved, thereby improving the refrigeration efficiency of the refrigeration system.

[0019] According to some embodiments of the present invention, the microchannel heat exchanger is connected in parallel with the evaporator of the refrigeration system.

[0020] A refrigerator according to an embodiment of a third aspect of the present invention comprises: a refrigeration system according to an embodiment of the second aspect of the present invention.

[0021] According to the refrigerator of the embodiment of the present invention, the working efficiency of the refrigerator can be improved by providing the above-mentioned refrigeration system.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic diagram of a compressor according to some embodiments of the present invention;

[0025] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0026] Figure 3 yes Figure 1 A partial structural perspective view of the compressor;

[0027] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0028] Figure 5 yes Figure 3 A three-dimensional view of a partial structure of the compressor from another angle;

[0029] Figure 6 yes Figure 3 A three-dimensional view of a crankcase component of a compressor in FIG.

[0030] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0031] Figure 8 yes Figure 3 Schematic diagram of the microchannel heat exchanger in;

[0032] Fig. 9 yes Figure 3 The internal structure diagram of the microchannel heat exchanger in FIG.

[0033] Fig.10 yes Fig. 9 Enlarged view of point D in the middle.

[0034] Reference numerals:

[0035] Compressor 100;

[0036] Shell 1; first shell 11; second shell 12; intake pipe 13; exhaust pipe 14;

[0037] Crankcase component 2; crankshaft support 21; cylinder 22; compression chamber 220; cylinder seat 221; cylinder hole 222; first avoidance groove 223; first positioning notch 224; second avoidance groove 225; second positioning notch 226; spacer block 227;

[0038] Crankshaft 3;

[0039] Microchannel heat exchanger 4; heat exchanger body 41; first manifold 411; second manifold 412; medium flow channel 413; first protrusion 414; second protrusion 415; positioning groove 416; inlet pipe 42; first inlet pipe section 421; second inlet pipe section 422; outlet pipe 43; first outlet pipe section 431; second outlet pipe section 432. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] Reference below Figure 1-Figure 10 The compressor 100 according to the embodiment of the present invention is described. Optionally, the compressor 100 may be a reciprocating compressor, a rotary compressor, or the like.

[0042] like Figure 1 and Figure 3 As shown, the compressor 100 according to the first embodiment of the present invention includes: a cylinder 22 and a microchannel heat exchanger 4.

[0043] A compression chamber 220 is defined in the cylinder 22, and the microchannel heat exchanger 4 is disposed on the cylinder 22. The microchannel heat exchanger 4 includes a heat exchanger body 41, which extends along the circumference of the cylinder 22, and has a medium inlet and a medium outlet. Therefore, when the compressor 100 is working, the refrigerant can enter the compression chamber 220 through the air intake of the compressor 100, and the refrigerant is compressed in the compression chamber 220 and then discharged through the exhaust port of the compressor 100.

[0044] At the same time, the working medium with a lower temperature enters the heat exchanger body 41 from the medium inlet of the microchannel heat exchanger 4. In the process of the working medium flowing through the medium flow channel 413 in the heat exchanger body 41, the working medium can absorb the heat of the cylinder 22 of the compressor 100. The working medium of the heat exchanger body 41 flows out of the heat exchanger body 41 from the medium outlet, thereby effectively taking away the heat generated by the compression process, effectively reducing the temperature in the cylinder 22 of the compressor 100, reducing the compression power consumption, achieving an approximate isothermal compression process, and improving the compression efficiency of the compressor 100. In addition, by utilizing the characteristics of the microchannel heat exchanger 4 with a small volume, a large heat exchange coefficient, and a high heat exchange efficiency, the occupied space can be reduced under the condition of the volume limit of the compressor 100, and the heat exchange efficiency can be improved at the same time.

[0045] Optionally, the working medium may be water, oil, refrigerant, etc.

[0046] Optionally, a heat sink may be provided outside the housing 1 of the compressor 100, and the heat sink may be connected to the microchannel heat exchanger 4 to realize the recycling of the working medium, and the flow of the working medium may be driven by a pump. For example, the heat sink has a heat dissipation channel, and the heat dissipation channel is connected to both the medium inlet and the medium outlet of the microchannel heat exchanger 4. After the working medium enters the heat exchanger body 41 from the medium inlet, it absorbs heat and flows out from the medium outlet during the process of flowing through the heat exchanger body 41 and flowing to the medium outlet. The working medium after absorbing heat flows into the heat dissipation channel of the heat sink. Since the heat sink is located outside the housing 1 of the compressor 100, the heat exchange between the heat sink and the external airflow can be utilized to realize the cooling and temperature reduction of the working medium. The cooled working medium re-enters the heat exchanger body 41 through the medium inlet, thereby forming a circulating flow of the working medium.

[0047] Optionally, when the compressor 100 is used in a refrigeration system, the working medium in the microchannel heat exchanger 4 can also be composed of a part of the refrigerant circulating in the refrigeration system. For example, the microchannel heat exchanger 4 can be connected in series between the throttling device and the evaporator of the refrigeration system, and the medium inlet and medium outlet of the microchannel heat exchanger 4 are both connected to the refrigerant pipe connected between the throttling device and the evaporator; or, the microchannel heat exchanger 4 can be connected in series between the evaporator and the compressor 100 of the refrigeration system, and the medium inlet and medium outlet of the microchannel heat exchanger 4 are both connected to the refrigerant pipe connected between the evaporator and the compressor 100; or, the microchannel heat exchanger 4 can be connected in parallel with the evaporator of the refrigeration system. At this time, since the working medium is a refrigerant and participates in the circulation of the refrigerant of the refrigeration system, the heat generated in the cylinder 22 of the compressor 100 can be absorbed by phase change.

[0048] According to the compressor 100 of the embodiment of the present invention, the microchannel heat exchanger 4 is arranged on the cylinder 22 and the heat exchanger body 41 of the microchannel heat exchanger 4 extends along the circumference of the cylinder 22. During the operation of the compressor 100, the heat generated by compression is transferred to the microchannel heat exchanger 4 through the heat conduction of the cylinder 22, and the working medium with a lower temperature entering the medium inlet of the microchannel heat exchanger 4 absorbs the heat and flows out from the medium outlet, thereby effectively taking away the heat generated by the compression process, effectively reducing the temperature in the cylinder 22 of the compressor 100, realizing an approximately isothermal compression process, and improving the compression efficiency of the compressor 100. In addition, by utilizing the characteristics of the microchannel heat exchanger 4 with a small volume, a large heat exchange coefficient, and a high heat exchange efficiency, the occupied space can be reduced under the condition of the volume limitation of the compressor 100, and the heat exchange efficiency can be improved at the same time.

[0049] According to some embodiments of the present invention, referring to Figure 3 , Figure 8 and Fig. 9The heat exchanger body 41 is formed in a ring shape. Thus, the contact area between the heat exchanger body 41 and the cylinder 22 can be increased, thereby increasing the heat exchange area between the heat exchanger body 41 and the cylinder 22, further improving the heat exchange efficiency of the microchannel heat exchanger 4, more effectively reducing the temperature in the cylinder 22 of the compressor 100, and better improving the compression efficiency of the compressor 100.

[0050] According to some embodiments of the present invention, referring to Figure 3-Figure 9 The medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body 41. The microchannel heat exchanger 4 includes an inlet pipe 42 and an outlet pipe 43. The inlet pipe 42 is arranged at the medium inlet and is connected to the medium inlet. The working medium flows through the inlet pipe 42 and the medium inlet in sequence and then flows into the heat exchanger body 41. The outlet pipe 43 is arranged at the medium outlet and is connected to the medium outlet. The working medium flows through the medium outlet and the outlet pipe 43 in sequence and then flows out of the microchannel heat exchanger 4. The inlet pipe 42 and the outlet pipe 43 are arranged to facilitate the connection of the microchannel heat exchanger 4 with the heat dissipation device arranged outside the shell 1 of the compressor 100 or the connection of the microchannel heat exchanger 4 with the refrigerant pipe of the refrigeration system.

[0051] A cylinder hole 222 is formed in the peripheral wall of the cylinder 22, and the cylinder hole 222 extends along the circumference of the cylinder 22. The heat exchanger body 41 is accommodated in the cylinder hole 222. A first avoidance groove 223 and a second avoidance groove 225 are formed on the outer peripheral wall of the cylinder 22, which are connected to the cylinder hole 222. The first avoidance groove 223 and the second avoidance groove 225 are spaced apart from each other. At least a portion of the inlet pipe 42 is accommodated in the first avoidance groove 223, for example, only a portion of the inlet pipe 42 may be accommodated in the first avoidance groove 223, or the entire inlet pipe 42 may be accommodated in the first avoidance groove 223. At least a portion of the outlet pipe 43 is accommodated in the second avoidance groove 225, for example, only a portion of the outlet pipe 43 may be accommodated in the second avoidance groove 225, or the entire outlet pipe 43 may be accommodated in the second avoidance groove 225. Therefore, by setting the first avoidance groove 223 and the second avoidance groove 225, the positioning of the inlet pipe 42 and the outlet pipe 43 is facilitated, and the first avoidance groove 223 and the second avoidance groove 225 are set apart from each other, so that the inlet pipe 42 and the outlet pipe 43 can be avoided from contacting, thereby preventing the working medium with a higher temperature in the outlet pipe 43 from transferring heat to the working medium with a lower temperature in the inlet pipe 42, further ensuring that the temperature of the working medium entering the heat exchanger body 41 is low, thereby further ensuring the heat exchange effect of the microchannel heat exchanger 4.

[0052] According to some optional embodiments of the present invention, referring to Figure 3-Figure 9The inlet pipe 42 includes a first inlet pipe section 421 and a second inlet pipe section 422 connected to each other. There is an angle between the first inlet pipe section 421 and the second inlet pipe section 422. For example, the first inlet pipe section 421 and the second inlet pipe section 422 are substantially vertically arranged. The first inlet pipe section 421 is arranged at the medium inlet and is connected to the medium inlet. At least a portion of the first inlet pipe section 421 can be accommodated in the first avoidance groove 223. The first inlet pipe section 421 can extend substantially along the radial direction of the cylinder 22. The working medium flows through the second inlet pipe section 422, the first inlet pipe section 421 and the medium inlet in sequence and then flows into the heat exchanger body 41. The second inlet pipe section 422 extends along the axial direction of the cylinder 22. In this way, the space occupied by the inlet pipe 42 can be reduced, so that the overall structure of the compressor 100 is compact.

[0053] According to some optional embodiments of the present invention, referring to Figure 3-Figure 9 The outlet pipe 43 includes a first outlet pipe section 431 and a second outlet pipe section 432 connected to each other, and an angle is formed between the first outlet pipe section 431 and the second outlet pipe section 432, for example, the first outlet pipe section 431 and the second outlet pipe section 432 are arranged substantially vertically. The first outlet pipe section 431 is arranged at the medium outlet and is connected to the medium outlet. At least a part of the first outlet pipe section 431 can be accommodated in the second avoidance groove 225. The first outlet pipe section 431 can extend substantially along the radial direction of the cylinder 22. The working medium flows through the medium outlet, the first outlet pipe section 431 and the second outlet pipe section 432 in sequence and then flows out of the microchannel heat exchanger 4. The second outlet pipe section 432 extends along the axial direction of the cylinder 22. Thus, the space occupied by the outlet pipe 43 can be reduced, so that the overall structure of the compressor 100 is compact.

[0054] According to some optional embodiments of the present invention, referring to Figure 3-Figure 9The inlet pipe 42 includes a first inlet pipe section 421 and a second inlet pipe section 422 connected to each other. There is an angle between the first inlet pipe section 421 and the second inlet pipe section 422. For example, the first inlet pipe section 421 and the second inlet pipe section 422 are substantially vertically arranged. The first inlet pipe section 421 is arranged at the medium inlet and is connected to the medium inlet. At least a portion of the first inlet pipe section 421 can be accommodated in the first avoidance groove 223. The first inlet pipe section 421 can extend substantially along the radial direction of the cylinder 22. The working medium flows through the second inlet pipe section 422, the first inlet pipe section 421 and the medium inlet in sequence and then flows into the heat exchanger body 41. The second inlet pipe section 422 extends along the axial direction of the cylinder 22. In this way, the space occupied by the inlet pipe 42 can be reduced, so that the overall structure of the compressor 100 is compact. Furthermore, the outlet pipe 43 includes a first outlet pipe section 431 and a second outlet pipe section 432 connected to each other, and an angle is formed between the first outlet pipe section 431 and the second outlet pipe section 432, for example, the first outlet pipe section 431 and the second outlet pipe section 432 are arranged substantially vertically. The first outlet pipe section 431 is arranged at the medium outlet and is connected to the medium outlet. At least a portion of the first outlet pipe section 431 can be accommodated in the second avoidance groove 225. The first outlet pipe section 431 can extend substantially along the radial direction of the cylinder 22. The working medium flows through the medium outlet, the first outlet pipe section 431 and the second outlet pipe section 432 in sequence and then flows out of the microchannel heat exchanger 4. The second outlet pipe section 432 extends along the axial direction of the cylinder 22. Thus, the space occupied by the outlet pipe 43 can be reduced, so that the overall structure of the compressor 100 is compact.

[0055] According to some optional embodiments of the present invention, referring to Figure 3-Figure 7 A spacer block 227 is provided between the first avoidance groove 223 and the second avoidance groove 225 to separate the first avoidance groove 223 from the second avoidance groove 225. Thus, the first avoidance groove 223 and the second avoidance groove 225 can be conveniently separated from each other by the spacer block 227, thereby avoiding contact between the inlet pipe 42 and the outlet pipe 43. Optionally, the spacer block 227 can be formed by a part of the cylinder 22.

[0056] According to some embodiments of the present invention, referring to Figure 1 , Figure 2 , Figure 8-Figure 10The heat exchanger body 41 defines a first manifold 411, a second manifold 412, and a plurality of parallel and spaced medium flow channels 413. The plurality of medium flow channels 413 are located between the first manifold 411 and the second manifold 412. Each medium flow channel 413 connects the first manifold 411 and the second manifold 412. The medium inlet is formed on the side wall of the first manifold 411, and the medium outlet is formed on the side wall of the second manifold 412. The working medium enters the first manifold 411 from the medium inlet. Through the distribution function of the first manifold 411, the working medium can be distributed to the plurality of medium flow channels 413. After flowing through the plurality of medium flow channels 413, the working medium converges into the second manifold 412, and then flows out of the heat exchanger body 41 from the medium outlet. As a result, the structure of the microchannel heat exchanger 4 is simple, and it is convenient to process and manufacture, and the microchannel heat exchanger 4 can have a higher heat exchange efficiency.

[0057] According to some optional embodiments of the present invention, referring to Figure 1 , Figure 2 , Figure 8-Figure 10 The first manifold 411 and the second manifold 412 are arranged at intervals in the circumferential direction of the heat exchanger body 41, and the plurality of medium flow channels 413 are arranged in the axial direction of the heat exchanger body 41, and each medium flow channel 413 extends along the circumferential direction of the heat exchanger body 41. Thus, the working medium can flow along the circumferential direction of the heat exchanger body 41, and the flow path of the working medium in the heat exchanger body 41 can be increased, so that the working medium flowing through the microchannel heat exchanger 4 can fully exchange heat with the cylinder 22, better reduce the temperature in the cylinder 22 of the compressor 100, better realize the approximate isothermal compression process, and better improve the compression efficiency of the compressor 100.

[0058] Optionally, refer to Figure 4 , Figure 8 and Fig. 9 A portion of the outer peripheral wall of the heat exchanger body 41 protrudes in a direction away from the center of the heat exchanger body 41 to form a first protrusion 414 and a second protrusion 415. The first protrusion 414 constitutes a portion of the side wall of the first manifold 411, and the second protrusion 415 constitutes a portion of the side wall of the second manifold 412. In this way, the volume of the first manifold 411 and the volume of the second manifold 412 can be increased, and at the same time, the circumferential length of the medium flow channel 413 can be ensured to be longer, so that more working medium can flow through the heat exchanger body 41, so that the working medium has a larger flow rate in the microchannel heat exchanger 4, and the heat in the cylinder 22 of the compressor 100 is better absorbed.

[0059] Further, refer to Figure 3-Figure 8The medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body 41. The microchannel heat exchanger 4 includes an inlet pipe 42 and an outlet pipe 43. The inlet pipe 42 is arranged at the medium inlet and is connected to the medium inlet. The working medium flows through the inlet pipe 42 and the medium inlet in sequence and then flows into the heat exchanger body 41. The outlet pipe 43 is arranged at the medium outlet and is connected to the medium outlet. The working medium flows through the medium outlet and the outlet pipe 43 in sequence and then flows out of the microchannel heat exchanger 4. The inlet pipe 42 and the outlet pipe 43 are arranged to facilitate the connection of the microchannel heat exchanger 4 with the heat dissipation device arranged outside the shell 1 of the compressor 100 or the connection of the microchannel heat exchanger 4 with the refrigerant pipe of the refrigeration system.

[0060] A cylinder hole 222 is formed in the peripheral wall of the cylinder 22, and the cylinder hole 222 extends along the circumference of the cylinder 22. The heat exchanger body 41 is accommodated in the cylinder hole 222. A first avoidance groove 223 and a second avoidance groove 225 are formed on the outer peripheral wall of the cylinder 22, which are connected to the cylinder hole 222. The first avoidance groove 223 and the second avoidance groove 225 are spaced apart from each other. At least a portion of the inlet pipe 42 is accommodated in the first avoidance groove 223, for example, only a portion of the inlet pipe 42 may be accommodated in the first avoidance groove 223, or the entire inlet pipe 42 may be accommodated in the first avoidance groove 223. At least a portion of the outlet pipe 43 is accommodated in the second avoidance groove 225, for example, only a portion of the outlet pipe 43 may be accommodated in the second avoidance groove 225, or the entire outlet pipe 43 may be accommodated in the second avoidance groove 225. Therefore, by setting the first avoidance groove 223 and the second avoidance groove 225, the positioning of the inlet pipe 42 and the outlet pipe 43 is facilitated, and the first avoidance groove 223 and the second avoidance groove 225 are set apart from each other, so that the inlet pipe 42 and the outlet pipe 43 can be avoided from contacting, thereby preventing the working medium with a higher temperature in the outlet pipe 43 from transferring heat to the working medium with a lower temperature in the inlet pipe 42, further ensuring that the temperature of the working medium entering the heat exchanger body 41 is low, thereby further ensuring the heat exchange effect of the microchannel heat exchanger 4.

[0061] A first positioning notch 224 is formed on the circumferential side wall of the first avoidance groove 223, and a portion of the first protrusion 414 fits in the first positioning notch 224. A second positioning notch 226 is formed on the circumferential side wall of the second avoidance groove 225, and a portion of the second protrusion 415 fits in the second positioning notch 226. Thus, by a portion of the first protrusion 414 fitting in the first positioning notch 224 and a portion of the second protrusion 415 fitting in the second positioning notch 226, the microchannel heat exchanger 4 can be more firmly installed on the cylinder 22.

[0062] Furthermore, refer to Figure 4 and Figure 8A spacer block 227 is provided between the first avoidance groove 223 and the second avoidance groove 225 to separate the first avoidance groove 223 from the second avoidance groove 225, a positioning groove 416 is defined between the first protrusion 414 and the second protrusion 415, and the spacer block 227 cooperates with the positioning groove 416. Thus, by defining the positioning groove 416 between the first protrusion 414 and the second protrusion 415, and the spacer block 227 cooperates with the positioning groove 416, the reliability of the microchannel heat exchanger 4 being installed and fixed on the cylinder 22 can be further improved.

[0063] Refer to the following Figure 1-Figure 8 The compressor 100 according to a specific embodiment of the present invention will be described in detail.

[0064] In this embodiment, the compressor 100 is a reciprocating compressor, and the compressor 100 includes: a housing 1, a motor, a crankcase component 2, a crankshaft 3, a connecting rod, a piston, and a microchannel heat exchanger 4. The motor, the crankcase component 2, the crankshaft 3, the connecting rod, the piston, and the microchannel heat exchanger 4 are all arranged in the housing 1.

[0065] The housing 1 includes a first housing 11 and a second housing 12 connected up and down, and the second housing 12 is connected to the lower part of the first housing 11. The crankcase component 2 includes a crankshaft support 21 and a cylinder 22. The cylinder 22 is arranged on the crankshaft support 21, and a compression chamber 220 is defined in the cylinder 22. The piston is movably arranged in the compression chamber 220. The motor is accommodated in the second housing 12, and the crankcase component 2 is connected and fixed to the second housing 12. The main body of the crankcase component 2 is located in the first housing 11. The crankshaft 3 is rotatably arranged on the crankshaft support 21 and the crankshaft 3 is connected to the output shaft of the motor. The connecting rod is arranged in the first housing 11, one end of the connecting rod is connected to the crankshaft 3 and the other end of the connecting rod is connected to the piston. The second housing 12 is formed with an air intake port and an air exhaust port connected to the compression chamber 220, and the air intake port is connected to an air intake pipe 13, and the air exhaust port is connected to an air exhaust pipe 14.

[0066] The cylinder 22 includes a cylinder seat 221 and a cylinder head. The axial end of the cylinder seat 221 away from the connecting rod is open to form an open end. The cylinder head is provided on the open end of the cylinder seat 221. A cylinder hole 222 is formed on the cylinder seat 221. The cylinder hole 222 is a blind hole and extends along the circumference of the cylinder 22. The cylinder hole 222 is formed in an annular shape and passes through the end surface of the open end of the cylinder seat 221.

[0067] The microchannel heat exchanger 4 includes the above-mentioned heat exchanger body 41, inlet pipe 42 and outlet pipe 43. The heat exchanger body 41 is accommodated in the cylinder hole 222. The top of the cylinder seat 221 is formed with the above-mentioned first avoidance groove 223 and second avoidance groove 225. A part of the inlet pipe 42 is accommodated in the first avoidance groove 223, and a part of the outlet pipe 43 is accommodated in the second avoidance groove 225.

[0068] When the compressor 100 is working, the motor drives the crankshaft 3 to rotate, the crankshaft 3 drives the connecting rod to move, and the connecting rod drives the piston to reciprocate along the axial direction of the cylinder 22. The refrigerant enters the compression chamber 220 through the intake pipe 13, and the refrigerant is compressed by the movement of the piston. The compressed refrigerant is discharged from the compressor 100 through the exhaust pipe 14.

[0069] During the operation of the compressor 100, the working medium with a lower temperature enters the heat exchanger body 41 from the medium inlet of the microchannel heat exchanger 4. During the process of the working medium flowing through the medium flow channel 413 in the heat exchanger body 41, the working medium can absorb the heat of the cylinder 22 of the compressor 100. The working medium of the heat exchanger body 41 flows out of the heat exchanger body 41 from the medium outlet, thereby effectively taking away the heat generated by the compression process, effectively reducing the temperature in the cylinder 22 of the compressor 100, reducing the compression power consumption, realizing an approximate isothermal compression process, and improving the compression efficiency of the compressor 100.

[0070] A refrigeration system according to an embodiment of a second aspect of the present invention comprises: a compressor 100 according to an embodiment of the first aspect of the present invention.

[0071] According to the refrigeration system of the embodiment of the present invention, by providing the above-mentioned compressor 100, the compression efficiency of the compressor 100 can be improved, thereby improving the refrigeration efficiency of the refrigeration system.

[0072] Optionally, the microchannel heat exchanger 4 can be connected in parallel with the evaporator of the refrigeration system, and when the compressor 100 is working, the refrigerant in the refrigeration system flows through the evaporator and the microchannel heat exchanger 4 at the same time. At this time, since the working medium is the refrigerant and participates in the circulation of the refrigerant of the refrigeration system, the heat generated in the cylinder 22 of the compressor 100 can be absorbed by phase change.

[0073] A refrigerator according to an embodiment of a third aspect of the present invention comprises: a refrigeration system according to an embodiment of the second aspect of the present invention.

[0074] According to the refrigerator of the embodiment of the present invention, the working efficiency of the refrigerator can be improved by providing the above-mentioned refrigeration system.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0076] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compressor, characterized in that: include: A housing, the housing comprising a first housing and a second housing connected up and down; a cylinder, wherein a compression chamber is defined in the cylinder; A microchannel heat exchanger, the microchannel heat exchanger is arranged on the cylinder, the microchannel heat exchanger comprises a heat exchanger body, the heat exchanger body extends along the circumference of the cylinder, and the heat exchanger body has a medium inlet and a medium outlet; The heat exchanger body defines a first collecting chamber, a second collecting chamber and a plurality of medium flow channels arranged side by side and at intervals. The plurality of medium flow channels are located between the first collecting chamber and the second collecting chamber. Each of the medium flow channels connects the first collecting chamber and the second collecting chamber. The medium inlet is formed on the side wall of the first collecting chamber, and the medium outlet is formed on the side wall of the second collecting chamber.

2. The compressor according to claim 1, characterized in that The heat exchanger body is formed in a ring shape.

3. The compressor according to claim 1, characterized in that The medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body. The microchannel heat exchanger includes an inlet pipe and an outlet pipe. The inlet pipe is arranged at the medium inlet and communicates with the medium inlet. The outlet pipe is arranged at the medium outlet and communicates with the medium outlet. A cylinder hole is formed in the peripheral wall of the cylinder. The cylinder hole extends along the circumference of the cylinder. The heat exchanger body is accommodated in the cylinder hole. A first avoidance groove and a second avoidance groove that are communicated with the cylinder hole are formed on the outer peripheral wall of the cylinder. The first avoidance groove and the second avoidance groove are spaced apart from each other. At least a portion of the inlet pipe is accommodated in the first avoidance groove, and at least a portion of the outlet pipe is accommodated in the second avoidance groove.

4. The compressor according to claim 3, characterized in that The inlet pipe includes a first inlet pipe section and a second inlet pipe section connected to each other, an angle is formed between the first inlet pipe section and the second inlet pipe section, the first inlet pipe section is arranged at the medium inlet and communicated with the medium inlet, and the second inlet pipe section extends along the axial direction of the cylinder; and / or, the outlet pipe includes a first outlet pipe section and a second outlet pipe section connected to each other, an angle is formed between the first outlet pipe section and the second outlet pipe section, the first outlet pipe section is arranged at the medium outlet and communicated with the medium outlet, and the second outlet pipe section extends along the axial direction of the cylinder.

5. The compressor according to claim 3, characterized in that A spacer block is provided between the first avoidance groove and the second avoidance groove to separate the first avoidance groove and the second avoidance groove from each other.

6. The compressor according to claim 1, characterized in that The first manifold and the second manifold are arranged at intervals in the circumferential direction of the heat exchanger body, a plurality of medium flow channels are arranged in the axial direction of the heat exchanger body, and each of the medium flow channels extends along the circumferential direction of the heat exchanger body.

7. The compressor according to claim 6, characterized in that A portion of the outer peripheral wall of the heat exchanger body protrudes in a direction away from the center of the heat exchanger body to form a first protrusion and a second protrusion, wherein the first protrusion constitutes a portion of the side wall of the first manifold, and the second protrusion constitutes a portion of the side wall of the second manifold.

8. The compressor according to claim 7, characterized in that The medium inlet and the medium outlet are both formed on the outer peripheral wall of the heat exchanger body. The microchannel heat exchanger includes an inlet pipe and an outlet pipe. The inlet pipe is arranged at the medium inlet and communicates with the medium inlet. The outlet pipe is arranged at the medium outlet and communicates with the medium outlet. A cylinder hole is formed in the peripheral wall of the cylinder. The cylinder hole extends along the circumference of the cylinder. The heat exchanger body is accommodated in the cylinder hole. A first avoidance groove and a second avoidance groove communicating with the cylinder hole are formed on the outer peripheral wall of the cylinder. The first avoidance groove and the second avoidance groove are spaced apart from each other. At least a portion of the inlet pipe is accommodated in the first avoidance groove. At least a portion of the outlet pipe is accommodated in the second avoidance groove. A first positioning notch is formed on the circumferential side wall of the first avoidance groove. A portion of the first protrusion fits in the first positioning notch. A second positioning notch is formed on the circumferential side wall of the second avoidance groove. A portion of the second protrusion fits in the second positioning notch.

9. The compressor according to claim 8, characterized in that A spacer block is provided between the first avoidance groove and the second avoidance groove to separate the first avoidance groove and the second avoidance groove from each other, a positioning groove is defined between the first protruding portion and the second protruding portion, and the spacer block cooperates with the positioning groove.

10. A refrigeration system, characterized in that: include: A compressor according to any one of claims 1 to 9.

11. The refrigeration system according to claim 10, characterized in that: The microchannel heat exchanger is connected in parallel with the evaporator of the refrigeration system.

12. A refrigerator, characterized in that: include: A refrigeration system according to claim 10 or 11.

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