Compressor and refrigeration device

Abstract

A compressor (10) and a refrigeration device. The compressor (10) comprises a compressor body (100), a jet accumulator (200), and an air suction accumulator (300); the compressor body (100) comprises a pump body assembly; the jet accumulator (200) is in communication with the pump body assembly; the air suction accumulator (300) is in communication with the pump body assembly; and the jet accumulator (200) and / or the air suction accumulator (300) are arranged at one end of the compressor body (100) in the axial direction.

Description

Compressor and refrigeration equipment

[0001] This application claims priority to Chinese patent application No. 202310724578.0 filed on June 16, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of refrigeration equipment, and in particular to a compressor and refrigeration equipment. Background Art

[0003] The jet-assisted reheat compressor utilizes two-stage throttling and intermediate jet technology, employing a flash evaporator for gas-liquid separation to achieve enthalpy enhancement. This achieves enhanced heating capacity in low-temperature environments by combining compression with jet mixing and cooling at low and medium pressures, followed by normal compression at high pressures.

[0004] However, in the related art, the suction liquid reservoir and the jet liquid reservoir of the jet reheat compressor are often arranged on the side of the compressor, resulting in redundant compressor structure and wide radial dimensions. It is only suitable for the box body of refrigeration equipment with a larger volume, which is not conducive to the miniaturization of refrigeration equipment. Technical issues

[0005] The main purpose of this application is to propose a compressor, aiming to reduce the circumferential space occupied by the compressor. Technical Solutions

[0006] The technical solution of this application proposes a compressor, comprising:

[0007] The compressor body, including the pump body assembly;

[0008] an injection liquid reservoir, connected to the pump body assembly;

[0009] an air-intake liquid reservoir, connected to the pump assembly;

[0010] The injection liquid reservoir and / or the suction liquid reservoir is arranged at one axial end of the compressor body.

[0011] In one embodiment, the suction accumulator is provided at one axial end of the compressor body, and the ejection accumulator is provided on a peripheral side of the compressor body.

[0012] In one embodiment, the volume of the injection reservoir is not greater than the volume of the suction reservoir, and the diameter of the injection reservoir is smaller than the diameter of the suction reservoir.

[0013] In one embodiment, the suction liquid reservoir is disposed at the bottom of the compressor body.

[0014] In one embodiment, the compressor body includes a first side wall, the suction accumulator includes a second side wall, and the first side wall and the second side wall are integrally formed.

[0015] In one embodiment, the compressor body includes a first side wall, an upper cover and a partition, the first side wall is arranged between the upper cover and the partition, and the first side wall is welded to the partition; the suction liquid reservoir includes a second side wall and a lower cover, the second side wall is arranged between the partition and the lower cover, and is welded to the partition, and there is a distance between the upper end surface of the second side wall and the lower end surface of the first side wall.

[0016] In one embodiment, the pump body assembly is provided with an air intake port and an air ejection port, the air intake reservoir is provided with a first air outlet communicated with the air intake port, and the air ejection reservoir is provided with a second air outlet communicated with the air ejection port.

[0017] In one embodiment, the pump body assembly includes an upper bearing, a lower bearing and at least one cylinder, and the cylinder is arranged between the upper bearing and the lower bearing; the air intake is arranged on the outer wall of the cylinder, and the outer wall of at least one of the upper bearing, the lower bearing and the cylinder is provided with the air injection port.

[0018] In one embodiment, the pump body assembly further includes a partition and two cylinders, wherein the partition is disposed between the two cylinders, the partition is provided with an air vent, the air vent connects the two cylinders, and the outer wall of the partition is provided with the jet port, the jet port is connected to the air vent.

[0019] In one embodiment, the pump body assembly further includes an air jet switch valve, which is provided at the air jet port or the air vent to connect or block the air jet reservoir and the cylinder.

[0020] In one embodiment, the compressor includes at least one jet reservoir, the pump body assembly is provided with at least one jet port, and the number of the jet ports is not less than the number of the jet reservoirs.

[0021] In one embodiment, the compressor further includes a connecting pipe, one end of which is connected to the air intake port, and the other end of which is passed through the second air outlet to the air intake reservoir, so as to connect the air intake reservoir with the pump body assembly.

[0022] In one embodiment, the connecting pipe is provided with an oil return hole, and the oil return hole is provided in the suction liquid reservoir.

[0023] In one embodiment, the oil return hole is provided on a side of the connecting pipe close to the bottom of the suction liquid reservoir.

[0024] The present application also provides a refrigeration device, the refrigeration device comprising a compressor, the compressor comprising:

[0025] The compressor body, including the pump body assembly;

[0026] an injection liquid reservoir, connected to the pump body assembly;

[0027] an air-intake liquid reservoir, connected to the pump assembly;

[0028] The injection liquid reservoir and / or the suction liquid reservoir is arranged at one axial end of the compressor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] FIG1 is a schematic structural diagram of a compressor according to an embodiment of the present application;

[0031] FIG2 is a partial enlarged view of point A in FIG1 ;

[0032] FIG3 is a schematic structural diagram of a compressor in another embodiment of the present application;

[0033] FIG4 is a schematic structural diagram of a pump assembly according to an embodiment of the present application.

[0034] Description of Figure Numbers:

[0035] Reference numerals Reference numerals 10 Compressor 111 Upper cover 100 Compressor body 112 First side wall 200 Jet reservoir 113 Partition 210 Second air outlet 120 Air intake 300 Air intake reservoir 130 Jet outlet 310 First air outlet 140 Upper bearing 320 Second side wall 150 Lower bearing 330 Lower cover 160 Cylinder 400 Connecting pipe 180 Jet switch valve 410 Oil return hole 170 Partition 171 Vent

[0036] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] The jet reheat compressor uses two-stage throttling intermediate jet technology and a flash evaporator for gas-liquid separation to achieve the enthalpy increase effect. The jet reheat technology adopts an economizer cycle design and solves the problems of high compression ratio and high exhaust temperature through the principle of quasi-two-stage compression and intermediate cooling. The compressor of the air source heat pump using jet reheat technology draws in a portion of the intermediate pressure gas through the intermediate pressure suction port, mixes it with the partially compressed refrigerant, and then compresses it, realizing a two-stage compression process with a single compressor. This allows the air source heat pump using jet reheat technology to adapt to lower outdoor ambient temperatures than ordinary air source heat pumps. At the same time, it increases the refrigerant flow in the condenser and increases the enthalpy difference between the main circulation loops, thereby greatly improving the efficiency of the compressor, making the air source heat pump using jet reheat technology more energy-saving than ordinary air source heat pumps.

[0041] Specifically, in a jet reheating system, the refrigerant exiting the condenser is divided into two paths: a primary refrigeration circuit and an auxiliary air supply circuit. The refrigerant liquid in the auxiliary circuit is reduced to a certain intermediate pressure by an electronic expansion valve, where it becomes an intermediate-pressure gas-liquid mixture. This mixture then undergoes heat exchange with the higher-temperature refrigerant liquid from the main circuit in the economizer. (The term "intermediate-pressure gas-liquid mixture" is relative, meaning that the pressure of the refrigerant in the auxiliary circuit is higher than the pressure at the compressor's intake port and lower than the pressure at the exhaust port.) The refrigerant liquid in the auxiliary circuit absorbs heat, transforming into a gas that is then fed into the compressor's working chamber (compression chamber) through the compressor's auxiliary air inlet. Simultaneously, the refrigerant in the main circuit is subcooled. This subcooled refrigerant passes through the expansion valve and enters the evaporator (outdoor unit heat exchanger).

[0042] In the evaporator, the refrigerant in the primary circuit absorbs heat from the low-temperature environment and becomes a low-pressure gas that enters the compressor's compression chamber. After a period of internal compression, the refrigerants in the primary and auxiliary circuits mix in the compressor's working chamber. As the compression chamber rotates, the two refrigerants are compressed and mixed until the mixing process is complete. The mixed refrigerant is further compressed by the compressor and discharged. This completes the working cycle of the jet-increased enthalpy heat pump system.

[0043] 1 and 3 , the present application proposes a compressor 10, which includes a compressor body 100, an injection reservoir 200, and an intake reservoir 300. The compressor body 100 includes a pump body assembly; the injection reservoir 200 is connected to the pump body assembly; the intake reservoir 300 is connected to the pump body assembly; the injection reservoir 200 and / or the intake reservoir 300 are arranged at one axial end of the compressor body 100.

[0044] Specifically, the refrigerant coming out of the condenser in the jet reheat system is divided into two paths. One path is a refrigeration circuit, in which the low-pressure refrigerant enters the suction reservoir 300 through the first air inlet pipe, and then enters the compression chamber of the pump body assembly from the suction reservoir 300 for compression; the other path is an air supply circuit, in which the medium-pressure refrigerant enters the jet reservoir 200 through the second air inlet pipe, and then enters the compression chamber of the pump body assembly from the jet reservoir 200, and mixes with the refrigerant from the suction reservoir 300 in the compression chamber of the pump body assembly, and then as the compression chamber of the pump body assembly rotates, the two parts of refrigerant are compressed and mixed until the mixing process is completed. The mixed refrigerant is further compressed by the pump body assembly and discharged from the exhaust port of the compressor body 100.

[0045] The compressor body 100 is generally cylindrical in shape. The jet reservoir 200 and the suction reservoir 300 are disposed at one axial end of the compressor body 100. They can be disposed at either the top or the bottom of the compressor body 100. When the jet reservoir 200 and the suction reservoir 300 are disposed at one axial end of the compressor body 100, the jet reservoir 200 and the suction reservoir 300 can be overlapped or arranged side by side. Alternatively, one of the jet reservoir 200 and the suction reservoir 300 can be disposed at the top of the compressor body 100 and the other at the bottom of the compressor body 100. In other embodiments, one of the jet reservoir 200 and the suction reservoir 300 can be disposed at one end of the compressor body 100 and the other at the circumference of the compressor body 100. The compressor body 100 can be vertical or horizontal.

[0046] By arranging at least one of the jet reservoir 200 and the suction reservoir 300 at one axial end of the compressor body 100, the radial size of the compressor 10 is reduced, and the space occupied by the compressor 10 in the circumferential direction is reduced, thereby reducing the occupied space of the refrigeration equipment box and realizing the miniaturization of the refrigeration equipment.

[0047] In one embodiment, the suction accumulator 300 is disposed at one axial end of the compressor body 100 , and the ejection accumulator 200 is disposed on a peripheral side of the compressor body 100 .

[0048] Referring to Figures 1 and 3 , the suction accumulator 300 is located at one axial end of the compressor body 100. The suction accumulator 300 can be located at the top or bottom of the compressor body 100. The jet accumulator 200 is located on the circumference of the compressor body 100. The jet accumulator 200 can be closely attached to the outer wall of the compressor body 100, or located outside the circumferential wall of the compressor body 100 with a certain distance therefrom, or located inside the circumferential wall of the compressor body 100. The suction accumulator 300 is located at one axial end of the compressor body 100, while the jet accumulator 200 is located on the circumferential side of the compressor body 100. The presence of only the jet accumulator 200 on the circumferential side of the compressor body 100 reduces the radial dimension of the compressor 10 and the space occupied by the compressor 10 in the circumferential direction, thereby reducing the occupied space of the refrigeration equipment casing and achieving miniaturization of the refrigeration equipment.

[0049] In one embodiment, the volume of the jetting reservoir 200 is not greater than the volume of the suction reservoir 300 , and the diameter of the jetting reservoir 200 is smaller than the diameter of the suction reservoir 300 .

[0050] Referring to Figures 1 and 3 , the suction reservoir 300 stores refrigerant from the refrigeration circuit. The refrigerant compressed in the compression chamber of the pump assembly is primarily supplied by the suction reservoir 300. The jet reservoir 200 stores refrigerant from the air supply circuit, providing auxiliary cooling. Therefore, the volume of the jet reservoir 200 is smaller than that of the suction reservoir 300, or the volume of the jet reservoir 200 is the same as that of the suction reservoir 300. The diameter of the jet reservoir 200 is smaller than that of the suction reservoir 300, and the height of the jet reservoir 200 is greater than that of the suction reservoir 300. The jet reservoir 200 is located on the circumference of the compressor body 100. Its greater height allows for better utilization of the axial space within the compressor body 100 and allows for a more secure installation of the jet reservoir 200. At the same time, the smaller diameter of the jet accumulator 200 makes the space occupied by the jet accumulator 200 in the circumferential direction of the compressor 10 smaller, further reducing the radial size of the compressor 10, thereby further reducing the occupied space of the refrigeration equipment box.

[0051] In one embodiment, the suction accumulator 300 is disposed at the bottom of the compressor body 100 .

[0052] Referring to Figures 1 and 3, the suction accumulator 300 is located at the bottom of the compressor body 100, so that the exhaust port of the compressor 10 is located at the upper end of the compressor 10. The refrigerant compressed by the pump assembly is a high-temperature, high-pressure gaseous refrigerant. The exhaust port of the compressor 10 is located at the upper end of the compressor 10, which is more conducive to the flow and discharge of the refrigerant. The suction accumulator 300 is located at the bottom of the compressor body 100, and the jet accumulator 200 is located on the circumference of the compressor body 100. Only the jet accumulator 200 is provided on the circumference of the compressor body 100, which reduces the radial size of the compressor 10 and the space occupied by the compressor 10 in the circumferential direction, thereby reducing the occupied space of the refrigeration equipment box and realizing the miniaturization of the refrigeration equipment.

[0053] In one embodiment, the compressor body 100 includes a first side wall 112 , and the suction accumulator 300 includes a second side wall 320 . The first side wall 112 and the second side wall 320 are integrally formed.

[0054] Referring to Figure 3 , first sidewall 112 and second sidewall 320 are integrally formed. These two walls define an inner cavity, within which the pump assembly is located. The liquid storage chamber of suction accumulator 300 is formed, located at the lower end of the pump assembly. This integral formation of first sidewall 112 and second sidewall 320 enhances the structural stability of compressor 10.

[0055] In one embodiment, the compressor body 100 includes a first side wall 112, an upper cover 111 and a partition 113, the first side wall 112 is arranged between the upper cover 111 and the partition 113, and the first side wall 112 is welded to the partition 113; the intake liquid reservoir 300 includes a second side wall 320 and a lower cover 330, the second side wall 320 is arranged between the partition 113 and the lower cover 330, and is welded to the partition 113, and there is a distance between the upper end surface of the second side wall 320 and the lower end surface of the first side wall 112.

[0056] Referring to Figure 1 , the first sidewall 112 is cylindrical and positioned between the upper cover 111 and the partition 113. The upper end of the first sidewall 112 is connected to the upper cover 111, and the lower end of the first sidewall 112 is welded to the partition 113. The upper cover 111, the first sidewall 112, and the partition 113 collectively form a receiving chamber for mounting the pump assembly. The suction liquid reservoir 300 is positioned below the partition 113 and includes a second sidewall 320 and a lower cover 330. The second sidewall 320 is positioned between the partition 113 and the lower cover 330 and is welded to the partition 113. The partition 113, the second sidewall 320, and the lower cover 330 collectively form a liquid storage chamber for storing refrigerant in the refrigeration circuit. The partition 113 is generally cup-shaped, comprising a cup wall and a cup bottom. The cup opening of the partition 113 faces the pump assembly, and the outer surface of the cup wall is fixedly connected to the inner surface of the first side wall 112, generally by welding. The cup bottom separates the reservoir cavity from the accommodating cavity of the compressor body 10. The first side wall 112 of the compressor body 100 is connected to the reservoir shell through the partition 113. There is a gap between the upper end surface of the second side wall 320 and the lower end surface of the first side wall 112, which can reduce the overall resonance of the compressor 10 and thus reduce the mechanical noise of the compressor 10.

[0057] In one embodiment, the pump body assembly is provided with an air intake port 120 and an air jet port 130 , the air intake reservoir 300 is provided with a first air outlet 310 communicating with the air intake port 120 , and the air jet reservoir 200 is provided with a second air outlet 210 communicating with the air jet port 130 .

[0058] Referring to Figures 1 and 2, the pump assembly has an intake port 120, and the intake accumulator 300 has a first outlet 310, which communicates with the intake port 120. Refrigerant in the intake accumulator 300 flows out of the first outlet 310 and enters the pump assembly through the intake port 120 for refrigerant compression. The pump assembly also has an air jet 130, and the air jet accumulator 200 has a second outlet 210, which communicates with the air jet 130. Refrigerant in the air jet accumulator 200 flows out of the second outlet 210 and enters the pump assembly through the air jet 130, mixing with the refrigerant in the compression chamber of the pump assembly. As the compression chamber of the pump assembly rotates, the two refrigerants are compressed and mixed until the mixing process is complete. The mixed refrigerant is further compressed by the pump assembly and discharged from the exhaust port of the compressor body 100.

[0059] In one embodiment, the pump body assembly includes an upper bearing 140, a lower bearing 150 and at least one cylinder 160, and the cylinder 160 is arranged between the upper bearing 140 and the lower bearing 150; the air intake 120 is arranged on the outer wall of the cylinder 160, and the outer wall of at least one of the upper bearing 140, the lower bearing 150 and the cylinder 160 is provided with an air injection port 130.

[0060] Referring to Figure 2 , the compressor body 100 also includes an upper bearing 140. The outer wall of the outer ring of the upper bearing 140 is connected to the inner wall of the compressor body 100 casing, thereby securing the compressor body 100 to the casing. A cylinder 160 is disposed between the upper bearing 140 and the lower bearing 150. The outer wall of the cylinder 160 is connected to the outer rings of both the upper bearing 140 and the lower bearing 150, thereby securing the lower bearing 150 to the upper bearing 140. The pump body assembly comprises, from top to bottom, the upper bearing 140, the cylinder 160, and the lower bearing 150. The compressor body 100 also includes a crankshaft, which passes through the pump body assembly and is connected to the inner rings of the upper bearing 140 and the lower bearing 150, respectively. The upper bearing 140 and the lower bearing 150 support the crankshaft.

[0061] The crankshaft has a long axis, an eccentric portion, and a short axis. The crankshaft transmits the rotational force of the motor to the rotating piston in the cylinder 160, driving the rotating piston to rotate and compress the refrigerant. The compressor 10 also includes a motor, and the crankshaft is connected to the motor. For example, the outer stator of the motor is fixed to the inner wall of the compressor body 100 housing, and the inner rotor of the motor is mounted on the crankshaft. The inner rotor is clamped by cold pressing and drives the crankshaft, but this is not limited to this. The inner rotor rotates relative to the outer stator to transmit the rotational force of the motor to the rotating piston in the cylinder 160, thereby compressing the refrigerant.

[0062] Inlet port 120 is located on the outer wall of cylinder 160. Refrigerant in suction accumulator 300 enters cylinder 160 directly through inlet port 120 for compression. Jet port 130 can be located on one of upper bearing 140, lower bearing 150, and cylinder 160; or, alternatively, two of these can be provided with jet port 130; or, alternatively, all three can be provided with jet port 130. When jet port 130 is located on cylinder 160, refrigerant in jet accumulator 200 enters cylinder 160 directly through jet port 130 on cylinder 160, mixing with refrigerant in jet accumulator 200 and refrigerant in cylinder 160 from suction accumulator 300. When the jet port 130 is disposed on the upper bearing 140 or the lower bearing 150, the upper bearing 140 or the lower bearing 150 is provided with a through-hole communicating with the cylinder 160. The refrigerant in the jet accumulator 200 enters the cylinder 160 through the through-hole from the jet port 130. Providing the jet port 130 on the upper bearing 140 or the lower bearing 150 can avoid insufficient jet volume or refrigerant gas backflow caused by improper placement of the jet port 130, thereby improving the performance of the rotary compressor 10.

[0063] In one embodiment, the pump body assembly further includes a partition 170 and two cylinders 160 . The partition 170 is disposed between the two cylinders 160 . The partition 170 is provided with an air vent 171 , which connects the two cylinders 160 . The outer wall of the partition 170 is provided with an air jet 130 , which connects the air jet 130 to the air vent 171 .

[0064] Please refer to Figure 4. The diaphragm pump assembly includes two cylinders 160. The two cylinders 160 can be connected in parallel. The two cylinders 160 work independently. The suction reservoir 300 provides low-pressure refrigerant to one of the cylinders 160, and the ejection reservoir 200 provides medium-pressure refrigerant to the other cylinder 160. In the parallel case, the displacement of the two cylinders 160 can be the same or different, and the capacity requirements of the two cylinders 160 can be adjusted according to the displacement of the two cylinders 160. Of course, the two cylinders 160 can also be connected in series, and a connecting pipe is provided between the two cylinders 160, so that the gas discharged from one cylinder 160 continues to enter the other cylinder 160 for compression again. Alternatively, one cylinder 160 is connected to the other cylinder 160 through a heat exchanger for compression again. This is not limited here.

[0065] The partition 170 is arranged between the two cylinders 160, and the two opposite sides of the partition 170 are respectively connected to the two cylinders 160. The partition 170 is provided with an air vent 171 and an air jet 130. The air vent 171 is connected to the two cylinders 160, and the air jet 130 is connected to the air vent 171. After the medium-pressure refrigerant in the jet reservoir 200 enters the air vent 171 from the air jet 130, it enters one of the cylinders 160 as needed, or enters both cylinders 160 after being split, so that one jet reservoir 200 can provide medium-pressure refrigerant to both cylinders 160 for air replenishment. The air jet 130 is arranged on the partition 170, which can avoid the phenomenon of insufficient jet volume or refrigerant gas backflow caused by the unreasonable setting position of the air jet 130, thereby improving the performance of the rotary compressor 10.

[0066] In one embodiment, the pump assembly further includes an air jet switch valve 180 , which is disposed at the air jet port 130 or the air vent 171 to connect or block the air jet reservoir 200 and the cylinder 160 .

[0067] Referring to Figures 2 and 4 , the jet on / off valve 180 is used to connect or block the jet reservoir 200 and the cylinder 160. The jet on / off valve 180 can be located at the jet port 130. When the jet port 130 is located at the upper bearing 140, the lower bearing 150, the cylinder 160, or the partition 170, the jet on / off valve 180 is also located at the upper bearing 140, the lower bearing 150, the cylinder 160, or the partition 170. The jet on / off valve 180 can also be located at the vent 171, in which case the jet on / off valve 180 is located at the partition 170. When the jet on / off valve 180 is open, the jet reservoir 200 and the cylinder 160 are connected, allowing the medium-pressure refrigerant in the jet reservoir 200 to enter the cylinder 160. When the jet on / off valve 180 is closed, the jet reservoir 200 and the cylinder 160 are blocked, effectively preventing the backflow of the high-pressure refrigerant in the cylinder 160. The jet switching valve 180 can be a spherical valve, a cylindrical valve, a conical valve, a reed valve or a leaf valve, which is not limited here.

[0068] In one embodiment, the compressor 10 includes at least one jet reservoir 200 , and the pump body assembly is provided with at least one jet port 130 . The number of the jet ports 130 is not less than the number of the jet reservoir 200 .

[0069] The compressor 10 may have one, two, three, or more jet reservoirs 200. The multiple reservoirs may be all located at one end of the compressor body 100; or separately located at both ends of the compressor body 100; or all located around the compressor body 100; or partially located at one end of the compressor body 100 and partially located around the compressor body 100; or partially located at both ends of the compressor body 100 and partially located around the compressor body 100. The pump body assembly may have one, two, three, or more jet ports 130. The number of jet ports 130 may correspond one-to-one to the number of jet reservoirs 200, with one jet reservoir 200 communicating with one jet port 130. The number of jet ports 130 may also be greater than the number of jet reservoirs 200, with one jet reservoir 200 communicating with at least one jet port 130.

[0070] In one embodiment, the compressor 10 further includes a connecting pipe 400 , one end of which is connected to the air intake port 120 , and the other end of which passes through the second air outlet 210 and is disposed in the air intake reservoir 300 , so as to connect the air intake reservoir 300 with the pump assembly.

[0071] Referring to Figures 1 and 3 , the compressor 10 further includes a connecting pipe 400. A portion of the connecting pipe 400 is disposed around the compressor body 100, with its port communicating with the suction port 120. Another portion of the connecting pipe 400 is disposed around the suction reservoir 300, while another portion of the connecting pipe 400 passes through the second air outlet 210 and is disposed within the suction reservoir 300. The suction port 120 communicates with the second air outlet 210 via the connecting pipe 400, allowing refrigerant within the suction reservoir 300 to enter the pump assembly from the suction reservoir 300 through the connecting pipe 400. Furthermore, the connecting pipe 400 is disposed below the jet reservoir 200, which allows for rational utilization of the space below the jet reservoir 200 and further reduces the radial size and footprint of the compressor 10.

[0072] In one embodiment, the connecting pipe 400 is provided with an oil return hole 410 , and the oil return hole 410 is provided in the suction liquid reservoir 300 .

[0073] Referring to Figures 1 and 3 , due to the long-term operation of the compressor 10, a certain amount of lubricating oil will be discharged from the main body of the compressor 10 along with the vaporized refrigerant, and will then enter the suction accumulator 300 through the pipeline. To prevent the lubricating oil in the main body of the compressor 10 from continuously decreasing, an oil return hole 410 is provided on the connecting pipe 400. The oil return hole 410 is located in the suction accumulator 300. The oil return hole 410 can be located at any circumferential position of the connecting pipe 400, such as on one side of the connecting pipe 400 close to the bottom of the suction accumulator 300, on the other side of the connecting pipe 400 away from the bottom of the suction accumulator 300, or at any position in between. After the lubricating oil returns to the suction accumulator 300 along with the refrigerant, the lubricating oil and liquid refrigerant are deposited at the bottom of the suction accumulator 300, with the lubricating oil layer being on top of the liquid refrigerant layer. When the liquid level at the bottom of the suction reservoir 300 rises to the oil return hole 410 and immerses into the lubricating oil layer, the lubricating oil enters the connecting pipe 400 from the oil return hole 410 and then returns to the main body of the compressor 10, thereby playing a lubricating and protective role for the main body of the compressor 10.

[0074] In one embodiment, the oil return hole 410 is disposed on one side of the connecting pipe 400 close to the bottom of the suction liquid reservoir 300 .

[0075] Referring to Figures 1 and 3 , the oil return hole 410 is provided on the side of the connecting pipe 400 near the bottom of the suction reservoir 300. When the oil return hole 410 is provided on the other side of the connecting pipe 400 away from the bottom of the suction reservoir 300, the distance between the lubricating oil layer and the bottom of the suction reservoir 300 is at least equal to the diameter of the connecting pipe 400. This may result in delayed or difficult oil return, potentially damaging the compressor 10. Because the oil return hole 410 is provided on the side of the connecting pipe 400 near the bottom of the suction reservoir 300, the lubricating oil that settles at the bottom of the suction reservoir 300 is drawn back into the compressor 10 through the connecting pipe 400 by the suction force of the compressor 10, thereby providing lubrication and protection for the compressor 10.

[0076] The present application also proposes a refrigeration device, which includes a compressor 10. The specific structure of the compressor 10 refers to the above embodiment. Since the present refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0077] The above description is merely an optional embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made based on the concept of the present application and the contents of the present application description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A compressor, comprising: The compressor body, including the pump assembly; A jet liquid reservoir connected to the pump assembly; An air suction reservoir, connected to the pump assembly; The injection liquid reservoir and / or the suction liquid reservoir is arranged at one axial end of the compressor body.

2. The compressor according to claim 1, wherein: The suction liquid reservoir is arranged at one end of the compressor body in the axial direction, and the injection liquid reservoir is arranged on the peripheral side of the compressor body.

3. The compressor according to claim 2, wherein: The volume of the jet reservoir is not greater than the volume of the suction reservoir, and the diameter of the jet reservoir is smaller than the diameter of the suction reservoir.

4. The compressor according to claim 2, wherein: The suction liquid storage tank is arranged at the bottom of the compressor body.

5. The compressor according to any one of claims 2 to 4, wherein: The compressor body includes a first side wall, the air suction accumulator includes a second side wall, and the first side wall and the second side wall are integrally formed.

6. The compressor according to any one of claims 2 to 4, wherein: The compressor body includes a first side wall, an upper cover and a partition, the first side wall is arranged between the upper cover and the partition, and the first side wall is welded to the partition; the air intake liquid storage tank includes a second side wall and a lower cover, the second side wall is arranged between the partition and the lower cover, and is welded to the partition, and there is a distance between the upper end surface of the second side wall and the lower end surface of the first side wall.

7. The compressor according to any one of claims 1 to 6, wherein: The pump body assembly is provided with an air intake port and an air jet port, the air intake liquid reservoir is provided with a first air outlet communicated with the air intake port, and the air jet liquid reservoir is provided with a second air outlet communicated with the air jet port.

8. The compressor according to claim 7, wherein: The pump body assembly includes an upper bearing, a lower bearing and at least one cylinder, wherein the cylinder is arranged between the upper bearing and the lower bearing; the air intake port is arranged on the outer wall of the cylinder, and the outer wall of at least one of the upper bearing, the lower bearing and the cylinder is provided with the air injection port.

9. The compressor according to claim 8, wherein: The pump body assembly also includes a partition and two cylinders. The partition is arranged between the two cylinders. The partition is provided with an air vent, and the air vent connects the two cylinders. The outer wall of the partition is provided with the jet port, and the jet port is connected to the air vent.

10. The compressor according to claim 9, wherein: The pump body assembly also includes an air jet switch valve, which is arranged at the air jet port or the air vent to connect or block the air jet reservoir and the cylinder.

11. The compressor according to any one of claims 7 to 10, wherein: The compressor includes at least one jet reservoir, the pump body assembly is provided with at least one jet port, and the number of the jet ports is not less than the number of the jet reservoirs.

12. The compressor according to any one of claims 7 to 11, wherein: The compressor further comprises a connecting pipe, one end of which is connected to the air intake port, and the other end of which is passed through the second air outlet and is arranged in the air intake liquid reservoir to connect the air intake liquid reservoir with the pump body assembly.

13. The compressor according to claim 12, wherein: The connecting pipe is provided with an oil return hole, and the oil return hole is arranged in the air suction liquid reservoir.

14. The compressor according to claim 13, wherein: The oil return hole is arranged on one side of the connecting pipe close to the bottom of the air suction liquid storage device.

15. A refrigeration device comprising the compressor according to any one of claims 1 to 14.

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