CN117189600A - Compressor and refrigeration equipment - Google Patents

Abstract

The invention discloses a compressor and refrigeration equipment, and relates to the technical field of compressors. Since the projection of the first cavity is located in the set area of 0-210 degrees, the area of 0-210 degrees is the air suction area of the high-pressure compression cavity, the temperature is lower, and the area of 210-360 degrees is the air discharge area of the high-pressure compression cavity, and the temperature is higher. Therefore, the temperature rise caused by heat exchange with the exhaust area of the high-pressure compression cavity can be reduced when the first cavity is positioned in the set area, so that the condition of overheat of the refrigerant in the first cavity is improved, the power consumption required by the high-pressure compression cavity for compressing the refrigerant is reduced, and the energy efficiency of the compressor is improved.

Description

Compressor and refrigeration equipment

Technical Field

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

Background

In order to enable the compressor to heat in a low-temperature environment or cool in a high-temperature environment, in the related art, the compressor compresses a refrigerant in a multi-stage compression manner so as to increase the pressure of the refrigerant, thereby improving the energy efficiency of the compressor. For example, the compressor is provided with a low-pressure compression cavity, an intermediate cavity and a high-pressure compression cavity, and a refrigerant compressed by the low-pressure compression cavity enters the high-pressure compression cavity through the intermediate cavity. However, the refrigerant is easily overheated when discharged to the intermediate chamber, resulting in an increase in power consumption required for compression in the high-pressure compression chamber, and a decrease in efficiency of the compressor.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the compressor, and the overheat condition of the refrigerant in the cavity can be improved by reasonably arranging the positions of the cavity, so that the power consumption required by compressing the refrigerant is reduced, and the energy efficiency of the compressor is improved.

The invention also provides refrigeration equipment with the compressor.

An embodiment of a compressor according to a first aspect of the present invention includes: the pump body assembly comprises a first cylinder, a partition plate and a second cylinder which are sequentially connected, and a crankshaft which can be rotatably arranged in the first cylinder and the second cylinder, wherein a first cavity is arranged in the partition plate, a low-pressure compression cavity is arranged in the first cylinder, the low-pressure compression cavity is used for exhausting to the first cavity, a high-pressure compression cavity is arranged in the second cylinder, and the first cavity is used for introducing air to the high-pressure compression cavity; the second cylinder is provided with a sliding vane groove, the sliding vane groove is used as a starting point on a projection surface projected along the axial direction of the crankshaft and rotates along the rotating direction of the crankshaft, a region with the rotation angle between 0 and 210 degrees is defined as a setting region, and the projection of the first cavity is positioned in the setting region.

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

through setting up low pressure compression chamber at first cylinder, the second cylinder sets up high pressure compression chamber, and the bent axle rotates to locate first cylinder and second cylinder, can make low pressure compression chamber and high pressure compression intracavity accomplish processes such as breathing in, compression, exhaust, and the refrigerant after the compression of low pressure compression chamber can get into high pressure compression chamber through first cavity. Since the projection of the first cavity is located in the set area of 0-210 degrees, the area of 0-210 degrees is the air suction area of the high-pressure compression cavity, the temperature is lower, and the area of 210-360 degrees is the air discharge area of the high-pressure compression cavity, and the temperature is higher. Therefore, the temperature rise caused by heat exchange with the exhaust area of the high-pressure compression cavity can be reduced when the first cavity is positioned in the set area, so that the condition of overheat of the refrigerant in the first cavity is improved, the power consumption required by the high-pressure compression cavity for compressing the refrigerant is reduced, and the energy efficiency of the compressor is improved.

According to some embodiments of the invention, the compressor further comprises an enthalpy increasing component, the partition member is provided with a gas injection hole communicated with the first cavity, and the enthalpy increasing component conveys the refrigerant into the first cavity through the gas injection hole.

According to some embodiments of the invention, the partition member is provided with a communication hole and an air inlet hole at an inlet of the high-pressure compression chamber at intervals, and the air injection hole is located on a path along which the refrigerant flows from the communication hole to the air inlet hole.

According to some embodiments of the present invention, on a projection plane projected along an axial direction of the crankshaft, a line connecting a center of the communication hole and a rotation center of the crankshaft is L3, a central axis of the gas injection hole is L4, and an included angle formed by the L4 and the L3 along a rotation direction of the crankshaft is a, so that: a is more than or equal to 5 degrees and less than or equal to 150 degrees.

According to some embodiments of the present invention, on a projection plane projected along an axial direction of the crankshaft, a line connecting a center of the air intake hole and a rotation center of the crankshaft is L5, a central axis of the air injection hole is L4, and an included angle formed by the L5 and the L4 along a rotation direction of the crankshaft is b, so that: b is more than 0 DEG and less than or equal to 90 deg.

According to some embodiments of the invention, the air injection hole is located on a side of the communication hole facing away from the air intake hole in a direction opposite to a rotation direction of the crankshaft.

According to some embodiments of the invention, the partition member includes an upper partition and a lower partition connected to each other, the upper partition is connected to a lower end surface of the second cylinder, the lower partition is connected to an upper end surface of the first cylinder, the first chamber is formed between the upper partition and the lower partition, the lower partition is provided with a first valve seat, and the low-pressure compression chamber is exhausted to the first chamber through the first valve seat.

According to some embodiments of the invention, a groove is formed in a side of the upper partition plate facing the lower partition plate, and the first cavity is formed between a wall surface of the groove and a wall surface of the lower partition plate facing the side of the upper partition plate.

According to some embodiments of the invention, the pump body assembly further comprises a lower bearing and a lower silencer, wherein the lower bearing is connected with the lower end face of the first cylinder, the lower silencer is connected with the lower bearing, a second cavity is formed between the lower silencer and the lower bearing, the second cavity is communicated with the first cavity through a communication channel, a second valve seat is arranged on the lower end face of the lower bearing, and the low-pressure compression cavity exhausts to the second cavity through the second valve seat.

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

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

by adopting the compressor of the embodiment of the first aspect, the compressor is provided with the low-pressure compression cavity in the first cylinder, the second cylinder is provided with the high-pressure compression cavity, and the crankshaft is rotationally arranged in the first cylinder and the second cylinder, so that the processes of air suction, compression, air exhaust and the like can be completed in the low-pressure compression cavity and the high-pressure compression cavity, and the refrigerant compressed in the low-pressure compression cavity can enter the high-pressure compression cavity through the first cavity. Since the projection of the first cavity is located in the set area of 0-210 degrees, the area of 0-210 degrees is the air suction area of the high-pressure compression cavity, the temperature is lower, and the area of 210-360 degrees is the air discharge area of the high-pressure compression cavity, and the temperature is higher. Therefore, the temperature rise caused by heat exchange with the exhaust area of the high-pressure compression cavity can be reduced when the first cavity is positioned in the set area, so that the condition of overheat of the refrigerant in the first cavity is improved, the power consumption required by the high-pressure compression cavity for compressing the refrigerant is reduced, and the energy efficiency of the compressor is improved.

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

Drawings

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

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

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

FIG. 3 is a cross-sectional view of a pump body assembly according to one embodiment of the present invention;

FIG. 4 is a cross-sectional view at A-A in FIG. 2;

fig. 5 is a cross-sectional view at B-B in fig. 2.

Reference numerals:

a compressor 1000;

a pump body assembly 100; a first cylinder 110; low pressure compression chamber 111; a lower bearing 120; a lower muffler 130; a second cavity 131; a communication passage 140; an upper bearing 150; a second cylinder 160; a high-pressure compression chamber 161; slide groove 162; an upper muffler 170; a third cavity 171; a divider member 190; a first cavity 191; an upper partition 192; a lower partition 193; an intermediate chamber 194; a communication hole 195; an air inlet 196; gas injection holes 197;

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

a reservoir 300; an exhaust pipe 310;

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

enthalpy increasing assembly 500.

Detailed Description

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

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

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

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

The compressor can be used for refrigeration equipment, such as heat pump water heater, air conditioner and the like, and can compress low-temperature low-pressure refrigerant into high-temperature high-pressure refrigerant to provide power for the circulation of the refrigeration system. The existing compressor has a scheme of one-stage compression and multi-stage compression, namely, the multi-stage compression is carried out through a pump body assembly for multiple times and then the refrigerant is discharged. The primary compression is mainly suitable for occasions with low pressure requirements on the refrigerant. Compared with one-stage compression, the multi-stage compression can enable the compressor to have higher volumetric efficiency, improve the pressure of refrigerant discharged by the pump body assembly, and enable the compressor to have a better effect in the occasions of low-temperature heating and high-temperature refrigeration.

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

Referring to fig. 3, the pump body assembly 100 includes a lower bearing 120, a first cylinder 110, a lower muffler 130, a diaphragm member 190, a second cylinder 160, an upper bearing 150, an upper muffler 170, and a crankshaft 430. The motor assembly 400 can drive the crankshaft 430 to rotate, and along the axial direction of the crankshaft 430, the crankshaft 430 comprises a first eccentric portion and a second eccentric portion which are arranged at intervals, wherein the first eccentric portion is sleeved with a first piston 431, and the second eccentric portion is sleeved with a second piston 432. The first cylinder 110 is formed with a low pressure compression chamber 111, and the first piston 431 is rotatably provided in the low pressure compression chamber 111, and an intake pipe of the accumulator 300 is connected to the first cylinder 110. The lower bearing 120 is connected to the lower end surface of the first cylinder 110, and the lower muffler 130 is connected to a side of the lower bearing 120 facing away from the second cylinder 160. The partition member 190 is disposed on a side of the first cylinder 110 facing away from the lower bearing 120, and the second cylinder 160 is connected to a side of the partition member 190 facing away from the first cylinder 110, the partition member 190 functioning to partition the first cylinder 110 and the second cylinder 160. The pump body assembly 100 is further provided with an intermediate chamber 194, the intermediate chamber 194 comprises a plurality of chambers, two of the plurality of chambers are respectively a first chamber 191 and a second chamber 131, the partition plate member 190 is provided with the first chamber 191, the second chamber 131 is formed between the lower bearing 120 and the lower silencer 130, and the first chamber 191 and the second chamber 131 are communicated through the communication channel 140.

With continued reference to fig. 3, the second cylinder 160 is formed with a high-pressure compression chamber 161, and the second piston 432 is rotatably disposed in the high-pressure compression chamber 161. The upper muffler 170 is coupled to the upper bearing 150, and a third chamber 171 is formed between the upper muffler 170 and the upper bearing 150, and the high pressure compression chamber 161 is communicated with the third chamber 171. The upper muffler 170 plays a role in reducing the noise of the refrigerant exhaust gas to improve the user's use experience.

Therefore, when the compressor 1000 is operated, the refrigerant having a low temperature and a low pressure enters the accumulator 300. The liquid reservoir 300 can reduce the liquid refrigerant from entering the pump body assembly 100, so as not to cause liquid impact. The gaseous refrigerant enters the low pressure compression chamber 111 through the discharge pipe 310 of the accumulator 300. When the crankshaft 430 rotates, the first piston 431 is driven to rotate in the low-pressure compression cavity 111, so as to compress the refrigerant pressure of low temperature and low pressure, and then the refrigerant is discharged to the high-pressure compression cavity 161 through the middle cavity 194, the crankshaft 430 drives the second piston 432 to make eccentric motion in the high-pressure compression cavity 161, so as to further compress the refrigerant, and then the refrigerant is discharged to the inner cavity 210 through the second cavity 131, further heated by the stator 410 and the rotor 420, changed into the refrigerant of high temperature and high pressure, and finally discharged from the air outlet pipe 220 of the shell 200. The refrigerant completes the first-stage compression in the first cylinder 110 and completes the second-stage compression in the second cylinder 160, and the pressure of the refrigerant can be increased by adopting a two-stage compression mode, so that the compressor 1000 can play a good role in low-temperature heating and high-temperature refrigeration.

The high pressure compression chamber 161 is partitioned into a suction area and a discharge area by the second piston 432, and the refrigerant in the discharge area is compressed, so that the temperature is high, and the temperature of the corresponding position of the second cylinder 160 is increased. Since the partition member 190 and the second cylinder 160 are connected, the partition member 190 is easily heated by heat conduction, and thus the refrigerant in the first chamber 191 is heated, resulting in an increase in the temperature of the refrigerant. When the refrigerant with higher temperature enters the high-pressure compression chamber 161 for secondary compression, the power consumption required by compression is increased, and the energy efficiency of the compressor 1000 is reduced.

In order to improve the overheating of the refrigerant in the first chamber 191, referring to fig. 4, in the embodiment of the present invention, the second cylinder 160 is provided with a vane groove 162, the vane groove 162 is used for installing a spring and a vane, the vane is connected with the spring, and the spring can keep the vane and the second piston 432 in contact. The projection of the first chamber 191 is located in a set region defined by a region having a rotation angle of 0 ° to 210 ° on the axial projection plane of the crankshaft 430, which is rotated 210 ° to L2 in the rotation direction of the crankshaft 430 with the center line L1 of the vane groove 162 as a starting point. It should be noted that, the center line of the slide slot 162 is a symmetrical center line thereof, and extends in the radial direction of the housing 200 while being perpendicular to the axis L6 of the crankshaft 430.

It will be appreciated that the high pressure compression chamber 161 is primarily suction in the region between 0 ° and 210 ° and primarily discharge in the region between 210 ° and 360 °. The temperature of the exhaust area is higher than that of the suction area, so that the projection of the first cavity 191 is set in the area between 0 and 210 degrees, and the temperature rise caused by heat exchange between the refrigerant in the first cavity 191 and the exhaust area of the high-pressure compression cavity 161 can be reduced, thereby improving the condition of overheat of the refrigerant in the first cavity 191, reducing the power consumption required by the high-pressure compression cavity 161 for compressing the refrigerant, and improving the energy efficiency of the compressor 1000.

In order to raise the displacement of the compressor 1000, referring to fig. 1, in the embodiment of the present invention, the compressor 1000 further includes an enthalpy increasing unit 500, and the partition member 190 is provided with gas injection holes 197 communicating with the first chamber 191, and the enthalpy increasing unit 500 delivers the refrigerant into the first chamber 191 through the gas injection holes 197. Therefore, the refrigerant conveyed by the enthalpy-increasing component 500 and the refrigerant in the first cavity 191 are mixed and then enter the high-pressure compression cavity 161, so that the air inflow and the air exhaust of the high-pressure compression cavity 161 can be improved; meanwhile, the refrigerant conveyed by the enthalpy-increasing component 500 can be mixed with the refrigerant in the first cavity 191, so that the cooling effect can be achieved, the power consumption required by the high-pressure compression cavity 161 for compressing the refrigerant is reduced, and the effect of low-temperature heating and high-temperature refrigeration of the compressor 1000 is further improved.

Referring to fig. 4, a dotted arrow in fig. 4 indicates a flow direction of the refrigerant. In the embodiment of the present invention, the partition member 190 is provided with a communication hole 195 at the outlet of the communication passage 140, and an intake hole 196 at the inlet of the high-pressure compression chamber 161. Therefore, the low pressure compression chamber 111 can discharge the compressed refrigerant into the second chamber 131, then sequentially pass through the communication channel 140, the communication hole 195, the first chamber 191, the air inlet 196, and finally enter the high pressure compression chamber 161. And the air injection holes 197 are located on a path along which the refrigerant flows from the communication holes 195 toward the air intake holes 196. That is, the air injection holes 197 may be located at positions of the first chamber 191 away from the communication holes 195 and the air intake holes 196, so that structural interference can be avoided, and installation is facilitated. And be favorable to increasing the refrigerant that enthalpy subassembly 500 carried and the refrigerant in the first cavity 191 and have sufficient time to mix, in order to reduce the refrigerant temperature in the first cavity 191, reduce the required power consumption when high-pressure compression chamber 161 compresses the refrigerant, further improve compressor 1000 and heat at the low temperature, the effect of high temperature refrigeration.

With continued reference to fig. 4, in the embodiment of the present invention, on a projection plane projected along the axis of the crankshaft 430, a line between the center of the communication hole 195 and the rotation center of the crankshaft 430 is L3, and the rotation center of the crankshaft 430 is located on the center axis L6 of the crankshaft 430. The center axis of the gas injection holes 197 is L4, L4 being disposed to extend in the radial direction of the housing 200, L4 may intersect with the center axis L6 of the crankshaft 430, or L4 and L6 may not intersect but are perpendicular to each other. The included angle formed between the rotation direction of the crankshaft 430 and L3 of L4 is a, which satisfies: a is more than or equal to 5 and less than or equal to 150, for example, a=10°, a=30°, a=90°, and a=120°. When a is smaller than 5 °, the distance between the gas injection hole 197 and the communication hole 195 is short, interference is likely to occur in the structure, and installation is difficult. When a is larger than 150 degrees, the distance between the air injection holes 197 and the air inlet 196 is relatively short, the refrigerant injected by the enthalpy increasing component 500 does not have enough time to mix with the refrigerant in the first cavity 191, and the cooling effect is poor; the pressure of the refrigerant sucked into the high-pressure compression chamber 161 is different, and pulsation is easily generated. Therefore, the size of the first cavity 191 is reasonably designed, structural interference can be avoided, the installation is convenient, and the refrigerant conveyed by the enthalpy-increasing component 500 and the refrigerant in the first cavity 191 are mixed for a sufficient time, so that the temperature of the refrigerant in the first cavity 191 is reduced, the power consumption required by the high-pressure compression cavity 161 for compressing the refrigerant is reduced, and the effects of low-temperature heating and high-temperature refrigeration of the compressor 1000 are further improved.

Referring to fig. 5, in the embodiment of the present invention, a line between the center of the intake hole 196 and the rotation center of the crankshaft 430 is L5 along the projection plane of the axial projection of the crankshaft 430, the center axis of the air injection hole 197 is L4, and the L4 is disposed to extend in the radial direction of the housing 200 or not intersect with but be perpendicular to the center axis L6 of the crankshaft 430. The included angle formed between the rotation direction of the crankshaft 430 and L4 of L5 is b, which satisfies the following conditions: 0 ° < b+.ltoreq.90°, e.g. b=30°, b=45°, b=60°, b=75°. When b=0°, the air-jet holes 197 and the air-intake holes 196 coincide, interference is easily generated in the structure, and the difficulty in manufacturing and assembling is high. When b is greater than 90 °, the distance the refrigerant discharged from the enthalpy increasing assembly 500 needs to enter the intake hole 196 is longer, and flow loss increases. While the temperature of the suction area of the high-pressure compression chamber 161 is gradually changed, the closer to the position of the air intake hole 196, the lower the temperature. When b is greater than 90 °, the distance between the air injection holes 197 and the air intake holes 196 is long, which easily results in the refrigerant injected from the enthalpy increasing component 500 being heated for a longer period of time. Therefore, the size of b is reasonably designed, so that the interference of the air injection holes 197 and the air inlet holes 196 in structure can be avoided, and meanwhile, the flow loss and the overheat of the refrigerant sprayed out of the enthalpy increasing assembly 500 can be reduced.

In another embodiment of the present invention, the air vent 197 is located on a side of the communication hole 195 facing away from the air intake hole 196 in a direction opposite to the rotational direction of the crankshaft 430, i.e., the communication hole 195 is located between the air vent 197 and the air intake hole 196. The enthalpy-increasing member 500 is injected through the injection holes 197, then the low pressure compression chamber 111 is exhausted through the communication hole 195, and finally enters the high pressure compression chamber 161 through the air intake holes 196. It can be appreciated that the air injection hole 197 is disposed at a side of the communication hole 195 away from the air inlet 196, so as to supplement the refrigerant in the first cavity 191, the refrigerant ejected from the enthalpy increasing component 500 is mixed with the refrigerant discharged from the low pressure compression cavity 111 after passing a small distance, so as to increase the density of the refrigerant in the first cavity 191, increase the air intake of the high pressure compression cavity 161, reduce the temperature of the refrigerant discharged from the low pressure compression cavity 111, effectively improve the overheat condition of the refrigerant, reduce the power consumption required when the refrigerant is compressed by the high pressure compression cavity 161, and further improve the energy efficiency of the compressor 1000.

Referring to fig. 3, in the embodiment of the present invention, the partition member 190 includes an upper partition 192 and a lower partition 193 connected, an upper end surface of the upper partition 192 is connected to a lower end surface of the second cylinder 160, the lower partition 193 is connected to an upper end surface of the first cylinder 110, and a first chamber 191 is formed between the upper partition 192 and the lower partition 193. The lower partition 193 is provided with a first valve seat, and the low pressure compression chamber 111 discharges refrigerant to the first chamber 191 through the first valve seat. The lower end surface of the lower bearing 120 is provided with a second valve seat, and the low-pressure compression chamber 111 discharges the refrigerant to the second chamber 131 through the second valve seat, that is, the low-pressure compression chamber 111 can discharge the refrigerant to the first chamber 191 and the second chamber 131 at the same time. It is understood that, since the discharge amount of the low pressure compression chamber 111 is large, the low pressure compression chamber 111 may discharge the refrigerant to the first and second chambers 191 and 131 at the same time in order to improve the refrigerant discharge efficiency. In another embodiment of the present invention, the low pressure compression chamber 111 may first discharge the refrigerant to the second chamber 131, and the refrigerant in the second chamber 131 enters the first chamber 191 through the communication channel 140, and finally enters the high pressure compression chamber 161 for secondary compression, and a suitable scheme is specifically selected according to practical situations.

With continued reference to fig. 3, in the embodiment of the present invention, a groove is formed in a side of the upper partition 192 facing the lower partition 193, and a first cavity 191 is formed between a wall surface of the groove and a wall surface of the lower partition 193 facing the side of the upper partition 192. The structure of the spacer member 190 can be simplified, the manufacturing difficulty can be reduced, and the production efficiency can be improved.

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

The refrigerating device according to an embodiment of the present invention includes the compressor 1000 according to the above embodiment, and the refrigerating device may be a central air conditioner, an integral air conditioner, a split air conditioner, an air duct machine, a window machine, or the like. By adopting the compressor 1000 of the above embodiment, by providing the low pressure compression chamber 111 in the first cylinder 110 of the compressor 1000 and providing the high pressure compression chamber 161 in the second cylinder 160, the crankshaft 430 is rotatably provided in the first cylinder 110 and the second cylinder 160, so that the processes of air suction, compression, air exhaust and the like can be completed in the low pressure compression chamber 111 and the high pressure compression chamber 161, and the refrigerant compressed in the low pressure compression chamber 111 can enter the high pressure compression chamber 161 through the first chamber 191 and the second chamber 131. Since the projection of the first chamber 191 is located in the set region of 0 ° to 210 °, the region of 0 ° to 210 ° is the suction region of the high pressure compression chamber 161, the temperature is low, and the region of 210 ° to 360 ° is the discharge region of the high pressure compression chamber 161, the temperature is high. Therefore, the temperature rise caused by heat exchange with the exhaust area of the high-pressure compression chamber 161 can be reduced when the first chamber 191 is located in the set area, so that the condition of overheat of the refrigerant in the first chamber 191 is improved, the power consumption required when the high-pressure compression chamber 161 compresses the refrigerant is reduced, and the energy efficiency of the compressor 1000 is improved.

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

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

Claims (10)

1. A compressor, comprising:

the pump body assembly comprises a first cylinder, a partition plate and a second cylinder which are sequentially connected, and a crankshaft which can be rotatably arranged in the first cylinder and the second cylinder, wherein a first cavity is arranged in the partition plate, a low-pressure compression cavity is arranged in the first cylinder, the low-pressure compression cavity is used for exhausting to the first cavity, a high-pressure compression cavity is arranged in the second cylinder, and the first cavity is used for introducing air to the high-pressure compression cavity;

the second cylinder is provided with a sliding vane groove, the sliding vane groove is used as a starting point on a projection surface projected along the axial direction of the crankshaft and rotates along the rotating direction of the crankshaft, a region with the rotation angle between 0 and 210 degrees is defined as a setting region, and the projection of the first cavity is positioned in the setting region.

2. The compressor as set forth in claim 1, wherein: the compressor further comprises an enthalpy increasing component, the partition plate member is provided with air injection holes communicated with the first cavity, and the enthalpy increasing component conveys refrigerants into the first cavity through the air injection holes.

3. The compressor as set forth in claim 2, wherein: the partition plate is provided with a communication hole and an air inlet hole at the inlet of the high-pressure compression cavity at intervals, and the air injection hole is positioned on a path for the refrigerant to flow from the communication hole to the air inlet hole.

4. A compressor as claimed in claim 3, wherein: on the projection plane of axial projection along the bent axle, the line of the center of intercommunicating pore with the center of rotation of bent axle is L3, the central axis of fumarole is L4, L4 is followed the direction of rotation of bent axle with the contained angle that L3 formed is a, satisfies: a is more than or equal to 5 degrees and less than or equal to 150 degrees.

5. A compressor as claimed in claim 3, wherein: on the projection plane of axial projection along the bent axle, the line of the center of inlet port with the center of rotation of bent axle is L5, the central axis of fumarole is L4, L5 is followed the direction of rotation of bent axle with the contained angle that L4 formed is b, satisfies: b is more than 0 DEG and less than or equal to 90 deg.

6. A compressor as claimed in claim 3, wherein: and the air injection hole is positioned at one side of the communication hole, which is away from the air inlet hole, along the reverse direction of the rotation direction of the crankshaft.

7. The compressor as set forth in claim 1, wherein: the baffle piece is including last baffle and the lower baffle that is connected, go up the baffle with the lower terminal surface of second cylinder is connected, the lower baffle with the up end of first cylinder is connected, go up the baffle with be formed with between the lower baffle first cavity, the baffle is equipped with first disk seat down, the low pressure compression chamber passes through first valve seat to first cavity exhaust.

8. The compressor of claim 7, wherein: the upper partition plate is provided with a groove towards one side of the lower partition plate, and a first cavity is formed between the wall surface of the groove and the wall surface of one side of the lower partition plate towards the upper partition plate.

9. The compressor according to claim 1 or 7, wherein: the pump body assembly further comprises a lower bearing and a lower silencer, the lower bearing is connected with the lower end face of the first cylinder, the lower silencer is connected with the lower bearing, a second cavity is formed between the lower silencer and the lower bearing, the second cavity is communicated with the first cavity through a communication channel, a second valve seat is arranged on the lower end face of the lower bearing, and the low-pressure compression cavity is exhausted to the second cavity through the second valve seat.

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