CN108317067B

CN108317067B - Compressor, refrigerating system assembly and refrigerator

Info

Publication number: CN108317067B
Application number: CN201810023200.7A
Authority: CN
Inventors: 冯海; 魏会军; 徐敏; 严耀宗; 刘文智; 赵文钊
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2024-05-03
Anticipated expiration: 2038-01-10
Also published as: CN108317067A

Abstract

The invention provides a compressor, a refrigerating system component and a refrigerator, wherein the compressor comprises: a housing; the cylinder assembly is arranged in the shell and is provided with an air suction port and an air exhaust port; the mixed flow pressure increasing piece is arranged in the shell and is provided with a first inlet, a second inlet, a first air outlet and a cavity, the first inlet, the second inlet and the first air outlet are respectively communicated with the cavity, the first inlet of the mixed flow pressure increasing piece is communicated with the air outlet, and the first air outlet of the mixed flow pressure increasing piece is used for supplying air to the air suction port. By the technical scheme provided by the invention, the technical problems of large compression ratio and low energy efficiency ratio of the compressor in the prior art are solved.

Description

Compressor, refrigerating system assembly and refrigerator

Technical Field

The invention relates to the technical field of compressors, in particular to a compressor, a refrigerating system component and a refrigerator.

Background

At present, when the small single-cylinder piston compressor works, the compressor compresses return air of the evaporator, so that high-pressure gas obtained after the compressor compresses enters the condenser. In the compressor assembly in the prior art, the compression ratio of the compressor is increased due to lower pressure of return air of the evaporator, so that the volumetric efficiency is lower, and the energy efficiency ratio is also lower.

Disclosure of Invention

The invention provides a compressor, a refrigerating system component and a refrigerator, which are used for solving the technical problems of large compression ratio and low energy efficiency ratio of the compressor in the prior art.

According to an aspect of the present invention, there is provided a compressor including: a housing; the cylinder assembly is arranged in the shell and is provided with an air suction port and an air exhaust port; the mixed flow pressure increasing piece is arranged in the shell and is provided with a first inlet, a second inlet, a first air outlet and a cavity, the first inlet, the second inlet and the first air outlet are respectively communicated with the cavity, the first inlet of the mixed flow pressure increasing piece is communicated with the air outlet, and the first air outlet of the mixed flow pressure increasing piece is used for supplying air to the air suction port.

Further, the compressor further includes: the air supplementing mixing chamber is arranged in the shell and is provided with a first air port, a second air port and a third air port, the first air port of the mixed flow pressurizing piece is used for supplying air to the first air port, the air supplementing pipeline supplements air to the air supplementing mixing chamber through the second air port, and the third air port is communicated with the air suction port.

Further, the first air outlet of the mixed flow plenum is spaced from the first air inlet.

Further, the first air outlet of the mixed flow pressurizing member is spaced from the first air outlet by a distance in a range of from 2mm or more to 5mm or less.

Further, the compressor further comprises an intermediate pressure air supplementing pipe, a first end of the intermediate pressure air supplementing pipe is communicated with the air supplementing pipe, a second end of the intermediate pressure air supplementing pipe is spaced from the second air port, and a second end of the intermediate pressure air supplementing pipe is used for supplying air to the second air port.

Further, the interval between the second end of the intermediate-pressure air supplementing pipe and the second air port is in the range of more than or equal to 2mm and less than or equal to 5 mm.

Further, the diameter of the intermediate-pressure air supply pipe is in the range of 1.5mm or more and 4mm or less.

Further, the housing includes an upper housing and a lower housing connected to each other, and the mixed flow plenum is disposed in the lower housing.

Further, the bottom of the lower shell is used for placing the frozen oil, and the mixed flow pressurizing piece is arranged at the bottom of the lower shell and is positioned in the frozen oil.

Further, the compressor further includes: the air suction silencer is provided with a third inlet and a second air outlet, the third inlet of the air suction silencer is arranged corresponding to the first air outlet of the mixed flow pressurizing piece, and the second air outlet of the air suction silencer is communicated with the air suction port.

Further, the compressor further comprises a drainage tube, a first end of the drainage tube is communicated with the first air outlet, a second end of the drainage tube is arranged at intervals with a third inlet of the suction muffler, and the second end of the drainage tube is used for supplying air to the third inlet.

Further, a space between the second end of the draft tube and the third inlet of the suction muffler is in a range of 2mm or more and 5mm or less.

Further, a drain hole is also arranged on the drainage tube.

Further, the compressor further includes: the crankshaft is arranged in the shell; the motor is arranged in the shell; and the snap spring is arranged at the bottom of the motor, and the mixed flow pressurizing piece is positioned between the crankshaft and the snap spring.

Further, the compressor further includes: the exhaust silencer is provided with a fourth inlet and a third air outlet, and the fourth inlet is communicated with the air outlet; the outer exhaust pipe is arranged on the shell; the inner exhaust pipe comprises a main pipeline, a first branch pipeline and a second branch pipeline, wherein the first branch pipeline and the second branch pipeline are communicated with the main pipeline, the main pipeline is communicated with the third air outlet, the first branch pipeline is communicated with the first inlet, and the second branch pipeline is communicated with the outer exhaust pipe.

Further, the mixed flow pressurizing piece is an ejector.

According to another aspect of the present invention there is provided a refrigeration system assembly comprising a compressor, the compressor being provided as described above.

Further, the refrigeration system assembly further comprises: the air outlet of the evaporator is communicated with the second inlet of the compressor; the inlet of the condenser is communicated with the exhaust port; the flash evaporator is provided with a first communication port, a second communication port and a third communication port, the first communication port is communicated with the outlet of the condenser, the second communication port is communicated with the first end of the intermediate pressure air supplementing pipe of the compressor, and the third communication port is communicated with the inlet of the evaporator.

According to another aspect of the present invention, there is provided a refrigerator including a refrigeration system assembly, the refrigeration system assembly being provided as described above.

By applying the technical scheme of the invention, the compressor comprises: a housing, a cylinder assembly, and a mixed flow plenum. Wherein, the cylinder subassembly sets up in the casing, and the cylinder subassembly has induction port and gas vent. The mixed flow pressure increasing piece is arranged in the shell and is provided with a first inlet, a second inlet, a first air outlet and a cavity, the first inlet, the second inlet and the first air outlet are respectively communicated with the cavity, the first inlet of the mixed flow pressure increasing piece is communicated with the air outlet, and the first air outlet of the mixed flow pressure increasing piece is used for supplying air to the air suction port.

By using the compressor provided by the invention, the mixed flow pressurizing part is added on the compressor, part of high-pressure gas at the exhaust port of the cylinder assembly can be directly introduced into the first inlet, and meanwhile, part of high-pressure gas introduced into the first inlet can enable low-pressure gas at the second inlet to be ejected into the cavity and mixed, so that the pressure of the air suction port of the compressor can be increased, and the compression ratio of the compressor can be reduced. Meanwhile, by arranging the mixed flow pressurizing piece in the shell, the compactness of the structure can be improved, and the integrated design of the compressor with the mixed flow pressurizing piece is facilitated. By adopting the compressor provided by the invention, the technical problems of large compression ratio and low energy efficiency ratio of the compressor in the prior art are solved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

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

Fig. 2 illustrates a front view of a compressor provided according to a first embodiment of the present invention;

fig. 3 shows a left side view of a compressor provided according to a first embodiment of the present invention;

FIG. 4 is a schematic view showing the structure of an intake silencer and an air-make-up mixing chamber according to a first embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of a mixed-flow plenum provided according to a first embodiment of the present invention;

fig. 6 is a schematic structural diagram of a refrigeration system assembly according to a second embodiment of the present invention;

Fig. 7 is a schematic diagram illustrating the working principle of a refrigeration system assembly according to a second embodiment of the present invention.

Wherein the above figures include the following reference numerals:

10. A housing; 11. an upper housing; 12. a lower housing; 20. a cylinder assembly; 30. a mixed flow plenum; 31. a first inlet; 32. a second inlet; 33. a first air outlet; 40. an air suction muffler; 50. a gas-supplementing mixing chamber; 51. a first gas port; 52. a second gas port; 53. a third port; 60. an intermediate pressure air supply pipe; 70. a flash evaporator; 80. an exhaust muffler; 90. an outer exhaust pipe; 100. an inner exhaust pipe; 101. an air suction pipe; 110. an evaporator; 120. a condenser; 130. a compressor; 140. drying the filter; 150. a first capillary; 160. a second capillary; 170. a drainage tube; 171. a liquid discharge hole; 180. a crankshaft; 190. and (5) clamping springs.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 3, a first embodiment of the present invention provides a compressor including: a housing 10, a cylinder assembly 20, and a mixed flow plenum 30. Wherein a cylinder assembly 20 is provided in the housing 10, the cylinder assembly 20 having an intake port and an exhaust port. The mixed flow pressurizing member 30 is disposed in the housing 10, the mixed flow pressurizing member 30 has a first inlet 31, a second inlet 32, a first air outlet 33, and a cavity, the first inlet 31, the second inlet 32, and the first air outlet 33 are respectively communicated with the cavity, the first inlet 31 of the mixed flow pressurizing member 30 is communicated with the air outlet, the second inlet 32 of the mixed flow pressurizing member 30 is used for introducing low-pressure backflow air, and the first air outlet 33 of the mixed flow pressurizing member 30 is used for supplying air to the air inlet.

With the compressor provided in this embodiment, the mixed flow pressure increasing member 30 is added to the compressor, and the mixed flow pressure increasing member 30 can directly introduce part of the high pressure gas at the exhaust port of the cylinder assembly 20 into the first inlet 31, and at the same time, part of the high pressure gas introduced into the first inlet 31 will cause the low pressure gas at the second inlet 32 to be injected into the cavity and mixed, so that the pressure of the air suction port of the compressor can be increased, and the compression ratio of the compressor can be reduced. Meanwhile, by disposing the mixed flow plenum 30 within the housing 10, compactness of the overall structure may be improved, facilitating an integrated design of the compressor with the mixed flow plenum 30. Therefore, the compressor provided by the invention solves the technical problems of large compression ratio and low energy efficiency ratio of the compressor in the prior art, and improves the compactness of the whole structure.

As shown in fig. 1 and4, specifically, the compressor in the present embodiment further includes a gas-supplementing mixing chamber 50, and the gas-supplementing mixing chamber 50 is provided in the housing 10. The air-supplementing mixing chamber 50 in the present embodiment has a first air port 51, a second air port 52, and a third air port 53, the first air outlet 33 of the mixed flow pressurizing member 30 is used for supplying air to the first air port 51, the air-supplementing pipe supplements air to the air-supplementing mixing chamber 50 through the second air port 52, and the third air port 53 communicates with the air intake.

With the compressor provided in this embodiment, the mixed flow pressure increasing member 30 is added to the compressor, and the mixed flow pressure increasing member 30 can directly introduce part of the high pressure gas at the exhaust port of the cylinder assembly 20 into the first inlet 31, and at the same time, part of the high pressure gas introduced into the first inlet 31 will cause the low pressure gas at the second inlet 32 to be injected into the cavity and mixed, so that the pressure of the air suction port of the compressor can be increased.

At the same time, the fluid pressurized by the mixed flow pressurizing member 30 will be discharged from the first air outlet 33 and enter the first air port 51 of the air supplementing mixing chamber 50, and at the same time, the fluid with the intermediate pressure in the air supplementing pipeline will enter the air supplementing mixing chamber 50, and the pressure of the fluid with the intermediate pressure is smaller than that of the first air outlet 33 and is larger than that of the second air inlet 32. In this way, the intermediate-pressure fluid and the high-pressure fluid discharged from the first air outlet 33 are sufficiently mixed in the air-supply mixing chamber 50, the supercooling degree of the mixed air is reduced, and then the mixed fluid is introduced into the air suction port of the cylinder assembly 20 through the third air outlet 53, so that the cylinder assembly 20 performs the secondary pressurization of the mixed fluid, and thus the pressure of the air discharge port of the cylinder assembly 20 can be further increased. In this embodiment, the air-supplementing mixing chamber 50 disposed in the housing 10 can supplement air and cool the fluid after being pressurized by the mixed flow pressurizing element 30, so as to reduce the superheat degree of the fluid and further reduce the power consumption of the compressor. Therefore, the compressor provided by the invention can solve the technical problems of large compression ratio and low energy efficiency ratio of the compressor in the prior art.

Specifically, the first air outlet 33 of the mixed flow plenum 30 is spaced from the first air inlet 51. With this arrangement, since the fluid flowing out through the first air outlet 33 contains the gas refrigerant, the refrigerating oil or other liquid, the liquid flowing out from the first air outlet 33 can flow into the bottom of the housing 10 at intervals by gravity, so that the amount of refrigerating oil entering the fluid in the first air outlet 51 can be reduced. Moreover, the pipeline connection can be reduced by adopting the mode, so that shaking among parts caused by over loose connection is avoided, and noise is generated.

In order to better reduce the liquid amount of the fluid entering the first air port 51, the first air outlet 33 of the mixed flow pressurizing member 30 in the present embodiment is provided at a distance in the range of 2mm or more to 5mm or less from the first air port 51. With such an arrangement, it is possible to introduce gas into the first gas port 51 while discharging liquid in the fluid as much as possible. The amount of liquid in the fluid is facilitated to flow better into the bottom of the housing 10, so that the amount of gas can be ensured while the amount of liquid of the fluid that enters the first gas port 51 can be further reduced.

To better achieve the effect of air-supplementing and cooling, the compressor in this embodiment further includes an intermediate-pressure air-supplementing pipe 60, a first end of the intermediate-pressure air-supplementing pipe 60 is used for communicating with the air-supplementing pipe, a second end of the intermediate-pressure air-supplementing pipe 60 is spaced from the second air port 52, and a second end of the intermediate-pressure air-supplementing pipe 60 is used for supplying air to the second air port 52. With this arrangement, the intermediate-pressure gas supply pipe 60 supplies the intermediate-pressure fluid to the second gas port 52, and the liquid in the intermediate-pressure fluid can flow from the space into the bottom of the casing 10 after receiving the action of gravity, so that the amount of the liquid in the intermediate-pressure fluid can be reduced. Moreover, the pipeline connection can be reduced by adopting the mode, so that shaking among parts caused by over loose connection is avoided, and noise is generated.

In order to better avoid the liquid amount of the intermediate-pressure fluid, the interval between the second end of the intermediate-pressure gas supply pipe 60 and the second gas port 52 in the present embodiment is in the range of 2mm or more and 5mm or less. With this arrangement, it is possible to send the gas into the second gas port 52 while discharging the liquid in the fluid as much as possible. Facilitating better flow of liquid in the intermediate pressure fluid into the bottom of the housing 10, thereby enabling further reduction of the amount of liquid in the fluid entering the second port 52 while ensuring a supplemental amount of gas.

In order to better enhance the effect of air supply and temperature reduction, the diameter of the intermediate-pressure air supply pipe 60 in the present embodiment is in the range of 1.5mm or more and 4mm or less. By adopting the arrangement, the requirements of the air supplementing quantity and the air supplementing flow rate can be met.

Specifically, the housing 10 in the present embodiment includes an upper housing 11 and a lower housing 12 connected to each other, and the cylinder assembly 20 further includes a cylinder block chassis. The mixed flow plenum 30 may be welded to the cylinder block chassis of the cylinder assembly 20 or the mixed flow plenum 30 may be welded to the bottom of the lower housing 12 of the compressor. In this embodiment, the mixed flow pressure increasing member 30 is welded to the bottom of the lower casing 12 of the compressor, and by arranging the mixed flow pressure increasing member 30 in the lower casing 12, the compactness of the overall structure can be improved, and the integrated design of the mixed flow pressure increasing member 30 and the compressor is facilitated.

Specifically, the bottom of the lower housing 12 is used for placing the frozen oil, and the mixed flow plenum 30 is disposed at the bottom of the lower housing 12 and within the frozen oil. By adopting such an arrangement, by arranging the mixed flow pressurizing member 30 in the refrigerating oil, on the one hand, the degree of superheat of the fluid at the first air outlet 33 of the mixed flow pressurizing member 30 can be effectively reduced, a certain cooling effect can be achieved, and on the other hand, the propagation of noise can be reduced.

In order to further reduce noise inside the compressor, the compressor in this embodiment further includes a suction muffler 40, the suction muffler 40 having a third inlet and a second outlet. The third inlet of the suction muffler 40 is disposed corresponding to the first air outlet 33 of the mixed flow plenum 30 to reduce fluid noise of the first air outlet 33 of the mixed flow plenum 30. The second air outlet of the suction muffler 40 communicates with the suction port so that the muffled fluid can smoothly enter the cylinder assembly 20.

In order to better enable the fluid of the first air outlet 33 to enter the suction muffler 40, the compressor in this embodiment further includes a draft tube 170, a first end of the draft tube 170 communicates with the first air outlet 33, a second end of the draft tube 170 is spaced from a third inlet of the suction muffler 40, and a second end of the draft tube 170 is used for supplying air to the third inlet. With such an arrangement, the fluid of the first air outlet 33 can be better introduced into the suction muffler 40 through the draft tube 170, so that the suction muffler 40 can better perform the silencing function, thereby reducing the noise inside the compressor as a whole. Meanwhile, the second end of the draft tube 170 is spaced apart from the third inlet of the suction muffler 40, and since the fluid flowing out through the first air outlet 33 contains a gaseous refrigerant, a frozen oil or other liquid, the liquid flowing out from the first air outlet 33 can flow into the bottom of the lower housing 12 at a spaced position under the action of gravity, thereby being able to reduce the frozen oil entering the third inlet. Moreover, the pipeline connection can be reduced by adopting the mode, so that shaking among parts caused by over loose connection is avoided, and noise is generated.

To better avoid liquid from entering the suction muffler 40, the interval between the second end of the draft tube 170 and the third inlet of the suction muffler 40 is set in the range of 2mm or more to 5mm or less. With this arrangement, it is possible to ensure that sufficient gas is fed into the third inlet while the liquid in the fluid is discharged as much as possible, and at the interval between the second end of the draft tube 170 and the third inlet of the suction muffler 40, part of the frozen oil in the fluid exiting from the first air outlet 33 will flow into the bottom of the lower housing 12 due to the gravity, so that the frozen oil entering the third inlet can be further reduced.

In order to further reduce the amount of the refrigerating fluid entering the third inlet, the drain tube 170 in this embodiment is further provided with a drain hole 171, and the drain hole 171 is mainly used for draining the refrigerating fluid in the fluid. Specifically, the distance between the drain hole 171 and the highest frozen oil level at the bottom of the lower case 12 in the present embodiment is maintained in the range of 5mm or more and 10mm or less, the orifice of the drain hole 171 faces the liquid level direction of the frozen oil, and the aperture of the drain hole 171 is in the range of 0.8mm or more and 1.2mm or less, in the present embodiment, the aperture of the drain hole 171 is 1mm. By adopting the arrangement, on one hand, the splash lubricating oil during the operation of the compressor can be effectively prevented from entering the drainage tube 170, the normal operation of the mixed flow pressurizing member 30 is ensured, and on the other hand, the frozen oil in the drainage tube 170 can be conveniently and smoothly discharged to the bottom of the lower shell 12.

Specifically, the compressor further includes: crankshaft 180, motor and circlip 190. Wherein the crankshaft 180 is disposed within the housing 10. The motor is disposed within the housing 10. With such an arrangement, the compressor, in operation, activates the motor which moves the crankshaft 180 and drives the cylinder assembly 20 to compress the fluid. The jump ring 190 sets up the bottom at the motor, and mixed flow pressure increasing piece 30 is located between bent axle 180 and jump ring 190 to make the inside structure of compressor compacter, the integrated design of mixed flow pressure increasing piece 30 and compressor of being convenient for.

Specifically, the compressor further includes: an exhaust muffler 80, an outer exhaust pipe 90, and an inner exhaust pipe 100. Wherein the exhaust silencer 80 has a fourth inlet and a third outlet, the fourth inlet communicating with the exhaust port to reduce fluid noise at the exhaust port. An outer exhaust pipe 90 is provided on the housing 10. The inner exhaust pipe 100 in this embodiment includes a main pipe communicating with the third air outlet, and a first branch pipe communicating with the first inlet 31 to send a part of the high-pressure fluid into the mixed-flow plenum 30, and a second branch pipe communicating with the main pipe. The second branch line communicates with the outer exhaust pipe 90 to send a portion of the high pressure fluid into the other working components. The compressor further comprises a suction pipe 101, wherein one end of the suction pipe 101 is communicated with the second inlet 32, and the other end of the suction pipe 101 is communicated with an external low-pressure refrigerant pipeline. Specifically, in the present embodiment, the suction pipe 101 communicates with the outlet of the evaporator.

As shown in fig. 5, in order to better increase the suction pressure at the suction port of the cylinder assembly 20, the cavity in this embodiment includes a mixing chamber and a diffusion chamber which are sequentially communicated, a first inlet 31 and a second inlet 32 are respectively communicated with the mixing chamber, and a first air outlet 33 is communicated with the diffusion chamber. With this arrangement, a portion of the high pressure fluid compressed by the compressor will enter the mixing chamber through the first inlet 31, while a portion of the low pressure fluid will be drawn into the second inlet 32 and then into the mixing chamber, where the two portions of fluid will mix, and then the mixed fluid will enter the diffusion chamber and pass through the mixing chamber into the suction port of the cylinder assembly 20, thus better increasing the pressure at the suction port of the cylinder assembly 20.

Specifically, the mixed flow plenum 30 includes an air inlet pipe, and the cavity further includes an absorption chamber in fluid flow communication with and upstream of the mixing chamber, such that the high pressure fluid from the first inlet 31 draws the low pressure fluid from the second inlet 32 into the absorption chamber, thereby facilitating sufficient mixing of the high pressure fluid and the low pressure fluid within the mixing chamber. In this embodiment, one end of the air inlet pipe is communicated with the first inlet 31, and the other end of the air inlet pipe is arranged in the absorption chamber in a penetrating manner, so that high-pressure fluid of the first inlet 31 can be better introduced into the absorption chamber, and the low-pressure air inlet of the second inlet 32 is conveniently sucked into the absorption chamber, and the pressure of the air suction port of the air cylinder assembly 20 is conveniently increased. The air inlet pipe in this embodiment has a necking section, the high-pressure fluid will pass through the necking section after entering the air inlet end, and the high-pressure fluid converts pressure energy into kinetic energy in the necking section so as to form a certain vacuum degree in the absorption chamber and suck the low-pressure fluid in the second inlet 32, thereby facilitating the high-pressure fluid and the low-pressure fluid to enter the mixing chamber for full mixing.

In order to make the fluid pressure after being mixed in the mixing chamber more uniform, the mixed flow pressurizing member 30 in this embodiment further includes a throat pipe, which is located between the mixing chamber and the diffusion chamber, so as to perform a steady flow function. Meanwhile, the diameter of the mixing chamber gradually decreases towards the direction close to the throat, and the diameter of the diffusion chamber gradually increases towards the direction far away from the throat. With this arrangement, the high pressure fluid and the low pressure fluid in the mixing chamber can be sufficiently exchanged to facilitate the conversion of the pressure energy of the mixed fluid into the kinetic energy of the fluid, and then the mixed fluid passes through the throat to make the pressure of the mixed fluid more uniform and stable, and then the mixed fluid enters the diffusion chamber and converts the kinetic energy into the pressure energy again to increase the pressure at the suction port of the cylinder assembly 20.

Specifically, the mixed flow plenum 30 in the illustrated embodiment includes an eductor welded to the bottom of the lower shell 12 of the compressor. The ejector has simple structure, no power consumption component and low cost. Meanwhile, compared with a two-stage compressor, the compressor in the embodiment has no low-pressure stage suction and exhaust loss and no friction loss, so that the compressor has higher indication efficiency and mechanical efficiency. The ejector can improve the suction pressure of the compressor, reduce unit power consumption, reduce suction specific volume, increase refrigerating capacity of unit volume and improve system efficiency.

Adopt the compressor that this embodiment provided, through the lower casing 12 bottom with the ejector welding at the compressor can make the structure of compressor compacter, the integrated design of being convenient for, and simple structure, low in manufacturing cost. Meanwhile, the ejector is used for boosting the low-pressure fluid at one stage, so that the compressor can realize the quasi-double-stage compression, further the throttling loss can be reduced, the pressure ratio of the compressor can be reduced, and the volumetric efficiency of the compressor can be improved. Meanwhile, the ejector is arranged at the bottom of the lower shell 12, so that the superheat degree of fluid can be effectively reduced, and noise transmission is reduced.

As shown in fig. 6, a second embodiment of the present invention provides a refrigeration system assembly, which includes a compressor 130, where the compressor 130 is the compressor 130 provided in the first embodiment.

The refrigeration system assembly in this embodiment also includes an evaporator 110, a condenser 120, and a flash evaporator 70. Wherein the outlet of the evaporator 110 is in communication with the second inlet 32 of the compressor 130. The inlet of the condenser 120 communicates with the outer exhaust pipe 90. The flash evaporator 70 has a first communication port that communicates with the outlet of the condenser 120, a second communication port that communicates with the first end of the intermediate-pressure gas supply pipe 60 of the compressor 130, and a third communication port that communicates with the inlet of the evaporator 110. With such an arrangement, the intermediate pressure fluid in the flash evaporator 70 is conveniently introduced into the air-supplementing mixing chamber 50, so that the air-supplementing and cooling of the fluid after mixed flow pressurization can be conveniently performed, and the compression power consumption can be reduced.

The refrigeration system assembly in this embodiment further includes: the external exhaust pipe 90 of the compressor 130 is connected with the condenser 120, the condenser 120 is connected with the first capillary pipe 150 through the serial connection of the dry filter 140, the outlet of the first capillary pipe 150 is connected with the first communication port of the flash evaporator 70, the third communication port of the flash evaporator 70 is connected with the second capillary pipe 160, the second capillary pipe 160 is connected with the inlet of the evaporator 110, and the outlet of the evaporator 110 is connected with the second inlet 32 of the mixed flow pressurizing member 30. Wherein the return air of the evaporator 110 enters the second inlet 32 of the mixed flow plenum 30 to primary boost the low pressure steam through the mixed flow plenum 30. The cylinder assembly 20 is then used to perform two-stage supercharging to achieve the quasi-two-stage compression of the compressor 130 in this embodiment.

Referring to fig. 7, a schematic diagram of the operation of a refrigeration system assembly is shown, where h represents the specific enthalpy value, p represents the pressure value, the low-pressure return air of the evaporator 110 in the refrigeration system assembly enters the second inlet 32 of the mixed-flow plenum 30, the mixed-flow plenum 30 performs a first stage of pressurization (corresponding process a-B in fig. 7), the refrigerant vapor after the first stage of pressurization is fully mixed with the intermediate-pressure make-up air in the make-up mixing chamber 50 (corresponding process F-B-C in fig. 7), and then the intermediate-pressure refrigerant vapor near the saturated state enters the cylinder assembly 20 for a second stage of pressurization (corresponding process C-D in fig. 7). The compressed refrigerant vapor is condensed by the condenser 120 (corresponding process D-E in fig. 7) and stored in the flash evaporator 70 after one stage of throttling (corresponding process E-F in fig. 7). The flash evaporator 70 communicates with the first end of the intermediate-pressure gas-supplementing pipe 60 from a second communication port above the liquid surface of the refrigerant, and the flash evaporator 70 communicates with the second capillary tube 160 from a third communication port below the liquid surface to re-throttle the saturated refrigerant liquid (corresponding process G-H in fig. 7), and the two-phase refrigerant throttled to the evaporation pressure enters the evaporator 110 for evaporation refrigeration (corresponding process H-a in fig. 7).

The third embodiment of the invention provides a refrigerator, which comprises a refrigerating system component, wherein the refrigerating system component is provided in the second embodiment.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor, the compressor comprising:

a housing (10);

a cylinder assembly (20) disposed within the housing (10), the cylinder assembly (20) having an intake port and an exhaust port;

The mixed flow pressurizing piece (30) is arranged in the shell (10), the mixed flow pressurizing piece (30) is provided with a first inlet (31), a second inlet (32), a first air outlet (33) and a cavity, the first inlet (31), the second inlet (32) and the first air outlet (33) are respectively communicated with the cavity, the first inlet (31) of the mixed flow pressurizing piece (30) is communicated with the air outlet, and the first air outlet (33) of the mixed flow pressurizing piece (30) is used for supplying air to the air suction port;

the air supplementing mixing chamber (50) is arranged in the shell (10), the air supplementing mixing chamber (50) is provided with a first air port (51), a second air port (52) and a third air port (53), the first air outlet (33) of the mixed flow pressurizing piece (30) is used for supplying air to the first air port (51), an air supplementing pipeline supplements air to the air supplementing mixing chamber (50) through the second air port (52), and the third air port (53) is communicated with the air suction port.

2. Compressor according to claim 1, characterized in that the first air outlet (33) of the mixed flow plenum (30) is spaced from the first air inlet (51).

3. Compressor according to claim 2, characterized in that the first air outlet (33) of the mixed flow plenum (30) is spaced from the first air inlet (51) in the range of 2mm or more and 5mm or less.

4. The compressor of claim 1, further comprising:

an intermediate pressure air supply pipe (60), wherein a first end of the intermediate pressure air supply pipe (60) is used for being communicated with an air supply pipeline, a second end of the intermediate pressure air supply pipe (60) is spaced from the second air port (52), and a second end of the intermediate pressure air supply pipe (60) is used for supplying air to the second air port (52).

5. The compressor of claim 4, wherein a second end of the intermediate-pressure make-up tube (60) is spaced from the second port (52) in a range of 2mm or more to 5mm or less.

6. The compressor according to claim 4, wherein the intermediate-pressure gas supply pipe (60) has a diameter in a range of 1.5mm or more and 4mm or less.

7. Compressor according to claim 1, characterized in that said housing (10) comprises an upper housing (11) and a lower housing (12) connected to each other, said mixed flow plenum (30) being provided inside said lower housing (12).

8. Compressor according to claim 7, characterized in that the bottom of the lower housing (12) is intended for placing the frozen oil, and the mixed flow plenum (30) is arranged at the bottom of the lower housing (12) and is located in the frozen oil.

9. The compressor of claim 1, further comprising:

The air suction silencer (40) is provided with a third inlet and a second air outlet, the third inlet of the air suction silencer (40) is arranged corresponding to the first air outlet (33) of the mixed flow pressurizing piece (30), and the second air outlet of the air suction silencer (40) is communicated with the air suction opening.

10. The compressor of claim 9, further comprising a draft tube (170), a first end of the draft tube (170) being in communication with the first air outlet (33), a second end of the draft tube (170) being spaced from a third inlet of the suction muffler (40), the second end of the draft tube (170) being for supplying air to the third inlet.

11. The compressor of claim 10, wherein a spacing between the second end of the draft tube (170) and the third inlet of the suction muffler (40) is in a range of greater than or equal to 2mm to less than or equal to 5mm.

12. The compressor of claim 10, wherein a drain hole (171) is further provided on the drain tube (170).

13. The compressor of claim 1, further comprising:

a crankshaft (180) disposed within the housing (10);

a motor disposed within the housing (10);

And the clamping spring (190) is arranged at the bottom of the motor, and the mixed flow pressurizing piece (30) is positioned between the crankshaft (180) and the clamping spring (190).

14. The compressor of claim 1, further comprising:

An exhaust silencer (80), the exhaust silencer (80) having a fourth inlet and a third outlet, the fourth inlet in communication with the exhaust outlet;

An outer exhaust pipe (90) provided on the housing (10);

The inner exhaust pipe (100) comprises a main pipeline, a first branch pipeline and a second branch pipeline, wherein the first branch pipeline and the second branch pipeline are communicated with the main pipeline, the main pipeline is communicated with the third air outlet, the first branch pipeline is communicated with the first inlet (31), and the second branch pipeline is communicated with the outer exhaust pipe (90).

15. The compressor according to any one of claims 1 to 14, wherein the mixed flow plenum (30) is an eductor.

16. A refrigeration system assembly comprising a compressor (130), wherein the compressor (130) is the compressor (130) of any one of claims 1 to 3,7 to 15.

17. A refrigeration system assembly comprising a compressor (130), characterized in that the compressor (130) is a compressor (130) according to any one of claims 4 to 6.

18. The refrigeration system assembly of claim 17, wherein the refrigeration system assembly further comprises:

an evaporator (110), an outlet of the evaporator (110) being in communication with the second inlet (32) of the mixed flow plenum (30);

a condenser (120), an inlet of the condenser (120) being in communication with the exhaust port;

The flash evaporator (70), flash evaporator (70) have first intercommunication mouth, second intercommunication mouth and third intercommunication mouth, first intercommunication mouth with the export intercommunication of condenser (120), the second intercommunication mouth with the first end intercommunication of intermediate pressure air make-up pipe (60) of compressor (130), the third intercommunication mouth with the import intercommunication of evaporimeter (110).

19. A refrigerator comprising a refrigeration system assembly, wherein the refrigeration system assembly is as claimed in any one of claims 16 to 18.