WO2024255523A1 - Compressor and refrigeration device - Google Patents

Abstract

Provided are a compressor (100) and a refrigeration device. The compressor (100) comprises a compression mechanism (300) and air injection valve assemblies. The compression mechanism (300) is provided with a compression cavity (321), a sliding vane slot communicated with the compression cavity (321), and an air injection channel (323) communicated with the compression cavity (321). Each air injection valve assembly comprises a valve seat disposed on the compression mechanism (300) and a valve body disposed on the valve seat. In the height direction of the compression mechanism (300), the compression cavity (321) has a first projection (910), the valve seat has a second projection (920), the second projection (920) having a second axis (810) extending in the length direction of the second projection (920), and the sliding vane slot has a third projection, the third projection having a third axis (820) extending in the length direction of the third projection, wherein the second axis (810) and the third axis (820) are arranged in parallel or at an included angle, the second axis (810) does not pass through the center of the first projection (910), the second projection (920) has a first end away from the first projection (910) and a second end close to the first projection (910), and the vertical distance between the first end and the third axis (820) is greater than or equal to the vertical distance between the second end and the third axis (820).

Description

Compressors and refrigeration units

This application claims priority to Chinese patent applications No. 202321558902.8 and No. 202321558777.0 filed on June 16, 2023, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of compressors, and in particular to a compressor and a refrigeration device.

Background Art

The existing compressor includes a compression mechanism and an injection valve group. The compression mechanism includes a cylinder with a compression chamber. The valve seat of the injection valve group is arranged on the side wall of the cylinder. The valve seat extends in the radial direction of the compression chamber, so that the maximum value of the length of the valve seat is the thickness value of the side wall of the cylinder. The length of the valve seat is limited by the thickness of the side wall of the cylinder. In this way, the length of the valve seat is relatively small.

Technical issues

The main purpose of the present application is to provide a compressor, aiming to increase the length of the valve seat.

Technical Solutions

To achieve the above objectives, the compressor proposed in this application includes:

A compression mechanism, comprising a compression chamber, a vane groove communicating with the compression chamber, and an injection channel communicating with the compression chamber; and

An injection valve group includes a valve seat arranged on the compression mechanism and a valve body arranged on the valve seat, wherein the valve body is used to control the refrigerant flow from the injection channel to the compression chamber. In the height direction of the compression mechanism, the compression chamber has a first projection, the valve seat has a second projection, the second projection has a second axis extending along the length direction of the second projection, the vane groove has a third projection, the third projection has a third axis extending along the length direction of the third projection, the second axis is parallel to the third axis or is arranged at an angle, the second axis does not pass through the center of the first projection, the second projection has a first end away from the first projection, and a second end close to the first projection, and the vertical distance between the first end and the third axis is greater than or equal to the vertical distance between the second end and the third axis.

In one embodiment, the included angle between the second axis and the third axis is α, 0°＜α＜90°.

In one embodiment, 30°≤α≤60°.

In the height direction of the compression mechanism, the jet channel has a fourth projection, the fourth projection has a fourth axis extending along the length direction of the fourth projection, and the angle between the fourth axis and the second axis is θ, 0°＜θ＜90°.

In one embodiment, 25°≤θ≤45°.

In one embodiment, the jet valve assembly further comprises a jet port disposed on the valve seat.

The compressor further comprises a jet liquid reservoir, which is mounted on a housing of the compressor, and is provided with an air intake port, and the jet liquid reservoir is connected to the compression chamber via the air intake port and the jet port in sequence;

The length of the intersection of the compression chamber and the injection port in the direction of the center of the compression chamber and the injection port is L, the radius of the compression chamber is R1, and 0.05＜L/R1＜0.1.

In one embodiment, the radius of the jet port is R2, and L/R2<1.

In one embodiment, the air inlet is connected to the jet liquid reservoir through the jet channel.

In one embodiment, the compression mechanism includes a main bearing, a cylinder, and a secondary bearing that limit the compression chamber, one compression chamber is arranged corresponding to at least one injection valve group, and the main bearing, and/or the cylinder, and/or the secondary bearing are provided with the injection valve group.

In one embodiment, the cylinder is provided in plurality, and the plurality of cylinders are distributed vertically.

In one embodiment, the compression mechanism includes a main bearing, a cylinder, a secondary bearing, and at least one partition plate that limit a plurality of the compression chambers. The partition plate is used to separate two adjacent compression chambers. One compression chamber is provided with at least one jet valve group. The main bearing and/or the cylinder and/or the secondary bearing and/or the partition plate are provided with the jet valve group.

In one embodiment, the compression assembly further includes a partition plate, and two adjacent cylinders are separated by the partition plate.

In one embodiment, a plurality of the gas injection valve groups are provided.

In the height direction of the compression mechanism, the jet passage has a fourth projection, the fourth projection has a fourth axis extending along the length direction of the fourth projection, and the fourth axis is arranged between the second axis and the third axis;

Alternatively, the second axis is disposed between the third axis and the fourth axis.

In one embodiment, the valve body is configured as a valve plate.

In one embodiment, the jet valve assembly further includes a lift limiter disposed on a side of the valve body facing away from the valve seat.

In one embodiment, the jet valve assembly further includes a fastener penetrating the valve body, the lift limiter, and the valve seat.

In one embodiment, the compressor is a jet enthalpy increase compressor.

The present application also provides a refrigeration device, which includes the aforementioned compressor.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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.

FIG1 is a schematic structural diagram of an embodiment of a compressor of the present application;

FIG2 is a bottom view of the main bearing in FIG1 ;

FIG3 is an enlarged view of point A in FIG1 ;

FIG4 is a schematic structural diagram of a compressor according to the present application when a valve seat is installed on a main bearing;

FIG5 is a schematic structural diagram of a dual-cylinder compressor in an embodiment of the present application.

Description of Figure Numbers:

Label name Label name 100 compressor 400 Crankshaft 200 chassis 500 Air intake reservoir 300 Compression mechanism 600 Jet reservoir 310 Main bearing 700 Motor 320 cylinder 810 Second axis 321 Compression chamber 820 The third axis 322 Partition 830 The fourth axis 323 Jet channel 910 First Projection 324 Jet 920 Second projection 330 Auxiliary bearing 930 The Fourth Projection

The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Embodiments of the present invention

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

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

In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or abutment, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

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 used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text includes three parallel schemes. Taking "A and/or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. 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 the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

The existing compressor includes a compression mechanism and an injection valve group. The compression mechanism includes a cylinder with a compression chamber. The valve seat of the injection valve group is arranged on the side wall of the cylinder. The valve seat extends in the radial direction of the compression chamber, so that the maximum value of the length of the valve seat is the thickness value of the side wall of the cylinder. The length of the valve seat is limited by the thickness of the side wall of the cylinder. In this way, the length of the valve seat is relatively small.

1 to 5 , in one embodiment of the present application, the compressor 100 includes a compression mechanism 300 and an injection valve group. The compression mechanism 300 is provided with a compression chamber, a vane groove communicating with the compression chamber, and an injection channel 323 communicating with the compression chamber. The jet valve assembly includes a valve seat disposed on the compression mechanism 300 and a valve body disposed on the valve seat, the valve body is used to control the refrigerant flow from the jet channel 323 to the compression chamber, in the height direction of the compression mechanism 300, the compression chamber 321 has a first projection 910, the valve seat has a second projection 920, the second projection 920 has a second axis 810 extending along the length direction of the second projection 920, the sliding vane groove has a third projection, the third projection has a third axis 820 extending along the length direction of the third projection, the second axis 810 and the third axis 820 are arranged in parallel or at an angle, the second axis 810 does not pass through the center of the first projection 910, the second projection 920 has a first end away from the first projection 910, and a second end close to the first projection 910, and the vertical distance between the first end and the third axis 820 is greater than or equal to the vertical distance between the second end and the third axis 820. In this way, the length of the valve seat is increased. Taking the valve seat disposed on the cylinder 320 of the compression mechanism 300 as an example, since the second axis 810 does not pass through the center of the first projection 910, the value of the length of the valve seat is at least greater than the value of the thickness of the side wall of the cylinder 320. It can be understood that when the valve seat is disposed on the main bearing 310, the auxiliary bearing 330 or the middle partition of the compression mechanism 300, since the valve seat is not restricted by the thickness of the cylinder wall of the cylinder 320, the length of the valve seat can be further increased, and even the second projection 920 overlaps with the first projection 910, so that the jet resistance of the jet channel 323 can be reduced.

It should be noted that when a conventional air conditioner is operating in a heating mode, as the outdoor ambient temperature decreases, the heating capacity of the compressor 100 will decrease, especially when the outdoor ambient temperature is minus 10 to 20 degrees Celsius, the heating capacity attenuation is very serious. The compressor 100 of this solution is configured as a jet enthalpy increase compressor 100, and the use of a compressor 100 with a jet enthalpy increase function can significantly increase the heating capacity.

The compressor 100 may be a vertical compressor 100. In the following description of the present application, the compressor 100 is taken as an example of a vertical compressor 100. Of course, those skilled in the art can understand that the compressor 100 can also be a horizontal compressor 100. Here, it should be noted that the "vertical compressor 100" can be understood as a compressor 100 in which the central axis of the compression chamber 321 is perpendicular to the mounting surface of the compressor 100. The central axis of the cylinder 320 extends in the vertical direction. Accordingly, the "horizontal compressor 100" can be understood as a compressor 100 in which the central axis of the cylinder 320 is roughly parallel to the mounting surface of the compressor 100.

It can be understood that the compressor 100 of this solution also includes a casing 200, a motor 700, an air intake reservoir 500, and an air jet reservoir 600. The motor 700, the compression mechanism 300, and the air jet valve assembly are arranged in the casing 200, and the motor 700 is used to drive the compression mechanism 300 to compress the refrigerant entering the compression chamber 321. The air intake reservoir 500 and the air jet reservoir 600 are connected to the compression chamber 321. Among them, the air jet reservoir 600 is connected to the compression chamber 321 through the air jet channel 323, and the air intake reservoir 500 is connected to the compression chamber 321 through the air intake port.

The compression mechanism 300 also includes a main bearing 310, a cylinder 320 assembly, a secondary bearing 330 and a piston. The main bearing 310 and the secondary bearing 330 are respectively arranged at the axial ends of the cylinder 320 assembly. When the compressor 100 is a vertical compressor 100, the main bearing 310 and the secondary bearing 330 are respectively arranged at the upper end and the lower end of the cylinder 320 assembly.

When the compressor 100 is a single-cylinder compressor 100, the cylinder 320 assembly includes a cylinder 320, the cylinder 320 has a compression chamber 321 and a vane groove connected to the compression chamber 321, a piston is provided in the compression chamber 321, the piston can roll along the inner wall of the compression chamber 321, the vane groove extends along the radial direction of the cylinder 320, a vane is provided in the vane groove, the vane can move in the vane groove and the inner end of the vane stops against the outer peripheral wall of the piston, and a cylinder 320 air intake port and a cylinder 320 air exhaust port are formed on the cylinder 320, the cylinder 320 air intake port is used to pass the refrigerant to be compressed into the compression chamber 321, and the cylinder 320 air exhaust port is used to discharge the compressed refrigerant out of the cylinder 320. Here, it should be noted that the direction "inside" can be understood as the direction toward the center of the cylinder 320, and the opposite direction is defined as "outside", that is, the direction away from the center of the cylinder 320.

When the compressor 100 is a multi-cylinder compressor 100, the cylinder 320 assembly includes a plurality of cylinders 320, the plurality of cylinders 320 are arranged in the axial direction, a partition is provided between each two adjacent cylinders 320, each cylinder 320 has a compression chamber 321 and a vane groove communicating with the compression chamber 321, a piston is provided in each compression chamber 321, and a vane is provided in each vane groove. It can be understood that the other structures of the multi-cylinder compressor 100 are substantially the same as those of the single-cylinder compressor 100, and will not be described in detail here.

During the operation of the jet regenerative compressor 100, the medium-pressure refrigerant gas in the jet reservoir 600 will enter the compression chamber 321 of the jet regenerative compressor 100 through the jet passage 323 as needed. The pressure of the "medium-pressure refrigerant gas" here is a relative concept, which means that the air pressure of the refrigerant in the jet reservoir 600 is higher than the air pressure at the air intake port of the jet regenerative compressor 100, and lower than the air pressure at the air exhaust port of the jet regenerative compressor 100.

The injection valve assembly is configured to open when the pressure of the refrigerant injected from the injection reservoir 600 is greater than the pressure in the compression chamber 321 , and to close when the pressure of the refrigerant injected from the injection reservoir 600 is less than the pressure in the compression chamber 321 .

It is understandable that when jet reheat is required, the jet valve group is opened, and the medium-pressure refrigerant gas injected from the jet reservoir 600 into the jet channel 323 can enter the compression chamber 321 through the jet channel 323, thereby increasing the heating capacity of the jet reheat compressor 100.

There are many kinds of positional relationships between the valve seat and the sliding vane groove. In one embodiment, the angle between the second axis 810 and the third axis 820 is α, 0°＜α＜90°. Further, in one embodiment, 30°≤α≤60°.

There are many kinds of positional relationships between the valve seat and the jet channel 323. In one embodiment, in the height direction of the compression mechanism 300, the jet channel 323 has a fourth projection 930, and the fourth projection 930 has a fourth axis 830 extending along the length direction of the fourth projection 930. The angle between the fourth axis 830 and the second axis 810 is θ, and 0°＜θ＜90°. In this way, the influence of the valve seat on the jet channel 323 can be reduced. Further, in one embodiment, 25°≤θ≤45°. In this way, the influence of the valve seat on the jet channel 323 can be reduced.

In one embodiment, the compression mechanism 300 includes a main bearing 310, a cylinder 320, and a secondary bearing 330 that limit a compression chamber 321. One compression chamber 321 is provided with at least one jet valve group, and the main bearing 310, and/or the cylinder 320, and/or the secondary bearing 330 are provided with a jet valve group. There are many solutions, for example, the main bearing 310 is provided with a jet valve group; or, the main bearing 310 and the cylinder 320 are respectively provided with a jet valve group; or, the main bearing 310, the cylinder 320, and the secondary bearing 330 are respectively provided with a jet valve group; or, the cylinder 320 is provided with a jet valve group; or, the cylinder 320 and the secondary bearing 330 are respectively provided with a jet valve group; or, the secondary bearing 330 is provided with a jet valve group; or, the main bearing 310 or the secondary bearing 330 is provided with a jet valve group. In addition, the number of jet channels 323 can also be set according to actual needs. For example, the main bearing 310 is provided with one jet valve group, and the jet passage 323 is provided with one; the main bearing 310 is provided with two jet valve groups, and the jet passage 323 may be provided with two, and one jet passage 323 is provided for one jet valve group, or one jet passage 323 is provided, and the jet passage 323 has two jet ports 324, and the jet ports 324 are connected to the compression chamber 321, and one jet port 324 is provided for one jet valve group. In addition, the compression mechanism 300 is provided with a cylinder 320, so that the sealing performance of the compression chamber 321 is better.

In one embodiment, the compression mechanism 300 includes a main bearing 310, a cylinder 320, a sub-bearing 330, and at least one partition 322 that define a plurality of compression chambers 321. The partition 322 is used to separate two adjacent compression chambers 321. One compression chamber 321 is provided with at least one jet valve group. The main bearing 310 and/or the cylinder 320 and/or the sub-bearing 330 and/or the partition 322 are provided with a jet valve group. It can be understood that the compression mechanism 300 has at least two compression chambers 321. The more compression chambers 321 there are, the smaller the vibration and noise of the compressor 100. There are many kinds of schemes. For example, the main bearing 310, the cylinder 320, the auxiliary bearing 330 and the partition 322 are respectively provided with a jet valve group; or, the main bearing 310, the cylinder 320 and the auxiliary bearing 330 are respectively provided with a jet valve group; or, the main bearing 310, the cylinder 320 and the partition 322 are respectively provided with a jet valve group; or, the main bearing 310, the auxiliary bearing 330 and the partition 322 are respectively provided with a jet valve group; or, the cylinder 320, the auxiliary bearing 330 and the partition 322 are respectively provided with a jet valve group; or, The main bearing 310 and the cylinder 320 are respectively provided with a jet valve group; or, the main bearing 310 and the auxiliary bearing 330 are respectively provided with a jet valve group; or, the main bearing 310 and the partition 322 are respectively provided with a jet valve group; or, the cylinder 320 and the auxiliary bearing 330 are respectively provided with a jet valve group; or, the cylinder 320 and the partition 322 are respectively provided with a jet valve group; or, the auxiliary bearing 330 and the partition 322 are respectively provided with a jet valve group; or, the cylinder 320 is provided with a jet valve group; or, the middle partition 322 is provided with a jet valve group. In addition, the number of jet channels 323 can also be set according to actual needs. It is worth mentioning that when the number of compression chambers 321 is greater than or equal to three, at least one of the cylinder 320 and the partition 322 is provided with a jet valve group.

It should be noted that the jet channel 323 and the corresponding jet valve group can be arranged on different components. For example, a jet channel 323 is arranged on the main bearing 310 , and the jet valve group corresponding to the jet channel 323 can be arranged on the cylinder 320 .

In one embodiment, a plurality of injection valve groups are provided, so as to better control the refrigerant flow from the injection channel 323 to the compression chamber 321 .

There are many relative positions of the valve seat, the jet channel 323, and the sliding vane groove. In one embodiment, in the height direction of the compression mechanism 300, the jet channel 323 has a fourth projection 930, and the fourth projection 930 has a fourth axis 830 extending along the length direction of the fourth projection 930. The fourth axis 830 is arranged between the second axis 810 and the third axis 820. Or, the second axis 810 is arranged between the third axis 820 and the fourth axis 830.

In one embodiment, the valve body is configured as a valve plate, and the valve plate controls the opening of the jet channel 323 by the degree of bending, thereby controlling the refrigerant flow from the jet channel 323 to the compression chamber 321. Specifically, the jet channel 323 has a jet port 324, and one end of the valve plate is arranged at the valve seat, and the other end is arranged at the jet port 324. In this way, the refrigerant flowing in the jet channel 323 impacts the other end of the valve plate to bend the valve plate, so as to increase the opening of the jet port 324, so that more refrigerant enters the compression chamber 321. In addition, the longer valve seat also provides installation space for the valve plate, so that the valve plate can be made longer, and the longer valve plate can reduce the rigidity of the valve plate, so that the valve plate is easier to bend under the impact of the refrigerant, thereby reducing the jet resistance. However, the present design is not limited to this. In other embodiments, the valve body can also be configured as other structural forms according to actual needs, which is not limited here.

In one embodiment, the jet valve assembly further includes a lift limiter disposed on the side of the valve body away from the valve seat. The lift limiter is used to limit the lift of the valve plate to limit the flow of refrigerant entering the compression chamber 321. Specifically, the lift limiter is used to limit the maximum stroke of the other end of the valve plate, thereby controlling the maximum opening of the jet port 324.

In one embodiment, the jet valve assembly further includes a fastener that penetrates the valve body, the lift limiter, and the valve seat. The fastener is used to fix the valve plate and the lift limiter to the valve seat. The fastener may be, but is not limited to, a screw. Further, in one embodiment, one end of the lift limiter away from the channel opening of the jet channel 323 and one end of the valve plate away from the channel opening of the jet channel 323 are fixed to the valve seat by fasteners.

1 and 4 , the present application provides a compressor, comprising:

Housing 200;

A cylinder 320, wherein the cylinder 320 is installed in the housing 200, and a compression chamber 321 is provided in the cylinder 320;

A valve seat 920, which is mounted on the cylinder 320 and has an air injection port 324; and

A jet reservoir 600, the jet reservoir 600 is mounted on the housing 200, an air intake port is provided on the jet reservoir 600, and the jet reservoir 600 is connected to the compression chamber 321 through the air intake port and the jet port 324 in sequence;

The length of the intersection of the compression chamber 321 and the jet port 324 in the direction of the center of the compression chamber 321 and the jet port 324 is L, the radius of the compression chamber 321 is R1, and 0.05＜L/R1＜0.1.

The compressor proposed in the present application includes a housing 200, a cylinder 320, a valve seat and a jet reservoir 600, wherein the cylinder 320 is mounted on the housing 200, and a compression chamber 321 is provided in the cylinder 320, and a jet port 324 is provided on the valve seat, and the jet reservoir 600 is mounted on the housing 200, and an air intake port is provided on the jet reservoir 600, so that the jet reservoir 600 is connected to the compression chamber 321 through the air intake port and the jet port 324 in sequence, wherein the jet port 324 is directly connected to the compression chamber 321, compared with the prior art The valve seat and the compression chamber 321 are connected through a flow channel. The technical solution of the present application reduces the clearance volume between the valve seat and the compression chamber 321, thereby reducing the jet resistance. Furthermore, the length of the intersection of the compression chamber 321 and the jet port 324 in the direction of the center of the compression chamber 321 and the center of the jet port 324 is L, and the radius of the compression chamber 321 is R1, 0.05＜L/R1＜0.1, thereby further reducing the clearance volume between the valve seat and the compression chamber 321, thereby reducing the jet resistance.

Furthermore, the radius of the jet port 324 is R2, L/R2<1, so that the size of the jet port 324 is reasonably set, thereby further reducing the clearance volume between the valve seat and the compression chamber 321, and further reducing the jet resistance.

5 , in one embodiment, a plurality of cylinders 320 are provided, and the plurality of cylinders 320 are distributed up and down. It can be understood that by providing a plurality of cylinders 320, the plurality of cylinders 320 can be compressed independently. Specifically, the compressor also includes a motor 700 and a crankshaft 400. The output end of the motor 700 is transmission-connected to the crankshaft 400, and the plurality of cylinders 320 are transmission-connected to the crankshaft 400, so that one motor 700 can drive a plurality of cylinders 320 to perform compression processing at the same time.

Furthermore, the compression assembly also includes a partition 322, and two adjacent cylinders 320 are separated by the partition 322. If multiple cylinders 320 are set independently, it is necessary to perform respective sealing treatments between the multiple cylinders 320 and the crankshaft 400. By setting the partition 322, the two adjacent cylinders 320 only need to be separated by one partition 322. If the two adjacent cylinders 320 are set independently, the two adjacent cylinders 320 have two side walls on the opposite sides. In the technical solution of the present application, only one partition 322 needs to be set to separate the two cylinders 320, thereby reducing the radial dimension between the cylinders 320; at the same time, the crankshaft 400 only needs to be sealed with the partition 322, and there is no need to seal with the two opposite side walls of the two adjacent cylinders 320 separately, thereby reducing the required sealing connection between the crankshaft 400 and the cylinder 320, thereby reducing the production cost of the compressor, and increasing the sealing effect between the crankshaft 400 and the cylinder 320.

In one embodiment, the valve seat is installed on the partition 322. Furthermore, the valve seat is also provided with a jet channel 323, and the jet port 324 is connected to the jet reservoir 600 through the jet channel 323. The jet port 324 and the jet channel 323 are provided on the partition 322, so that the multiple cylinders 320 are respectively connected to the jet reservoir 600.

1 and 4 , in another embodiment, the compressor further includes a bearing, wherein the bearing includes a main bearing 310 , wherein the main bearing 310 is mounted on the cylinder 320 , and the valve seat is mounted on the main bearing 310 ; or the bearing includes a secondary bearing 330 , wherein the secondary bearing 330 is mounted on the cylinder 320 , and the valve seat is mounted on the secondary bearing 330 .

1 to 5 , it can be understood that when there is only one cylinder 320, a main bearing 310 and a secondary bearing 330 are respectively installed at the upper and lower ends of the cylinder 320, and the valve seat can be arranged on the main bearing 310 or the secondary bearing 330; when there are multiple cylinders 320, a main bearing 310 is installed on the upper end of the top cylinder 320, and a secondary bearing 330 is installed on the lower end of the bottom cylinder 320, and the two adjacent side walls are separated by a partition 322. At this time, the valve seat can be arranged on any one of the main bearing 310, the secondary bearing 330, and the partition 322. One valve seat is corresponding to one cylinder 320, thereby flexibly setting the position of the valve seat, so that the installation space of the casing 200 can be reasonably utilized, which is convenient for the installation of the compressor.

Furthermore, the compression assembly also includes a roller and a vane, a vane groove is provided on the bearing, an eccentric portion is provided on the crankshaft 400, and the roller is installed on the eccentric portion. The motor 700 drives the crankshaft 400 to rotate, thereby driving the roller to rotate eccentrically. The outer diameter of the roller contacts the inner diameter of the cylinder 320, and the refrigerant in the low-pressure chamber is compressed into high pressure through volume changes. The vane performs a back-and-forth motion, and its main function is to press against the outer diameter of the piston at one end to prevent refrigerant leakage in the high and low pressure chambers.

In one embodiment, a vane groove is further provided on the bearing, and the jet channel 323 is located between the valve seat and the vane groove; or the jet channel 323 is located on the side of the valve seat away from the vane groove, thereby facilitating the reasonable layout of the jet channel 323 and facilitating the setting of the jet channel 323.

In the present embodiment, a jet valve plate is also included. The jet valve plate is installed on the valve seat and is located at the jet port 324. The jet valve plate can control the opening and closing of the jet port 324 and the compression chamber 321. It can be understood that when the gas is compressed in the compression chamber 321, the refrigerant pressure in the pressure chamber is higher than the refrigerant pressure in the jet reservoir 600. Therefore, at this time, the jet valve plate can be closed to close the jet port 324, thereby preventing the high-pressure refrigerant in the compression chamber 321 from flowing back into the jet reservoir 600, thereby increasing the compression efficiency of the compression chamber 321.

Furthermore, the compressor also includes a valve plate limiter, and the opening height of the valve plate can be limited by setting the valve plate limiter, so that the opening height of the valve plate can be controlled, and then the opening and closing time of the valve plate can be more effectively controlled.

Furthermore, the compressor also includes an air suction liquid storage device 500, which is an important part of the compressor and can play the role of storage, gas-liquid separation, filtration, silencing and refrigerant buffering. It includes a cylinder, an air inlet pipe, an air outlet pipe, a filter screen and other parts, and its working principle is as follows:

The suction accumulator 500 is installed between the evaporator and the compressor suction pipe. It is a protective component that prevents liquid refrigerant from flowing into the compressor and causing liquid hammer. During the operation of the air-conditioning system, it cannot be guaranteed that the refrigerant can be completely vaporized, that is, some liquid refrigerant coming out of the evaporator will enter the suction accumulator 500. Since the unvaporized liquid refrigerant is heavier than the gas, it will directly fall to the bottom of the suction accumulator 500. The vaporized refrigerant enters the compressor from the outlet of the suction accumulator 500, thereby preventing the compressor from sucking in liquid refrigerant and causing liquid hammer.

In one embodiment, the compressor is a jet reheat compressor, in which the medium-pressure refrigerant gas in the jet reservoir 600 will flow out of the jet reservoir 600 from the suction port and the jet port 324 and enter the compression chamber 321 as needed; it should be noted that the pressure of the "medium-pressure refrigerant gas" here is a relative concept, which means that the pressure of the refrigerant in the jet reservoir 600 is higher than the pressure of the refrigerant entering the compression chamber 321 from the suction reservoir 500, and lower than the pressure at the exhaust port of the compression chamber 321.

It can be understood that low-temperature and low-pressure refrigerant gas is sucked in from the intake pipe, and after the motor 700 drives the crankshaft 400 and the roller to compress the refrigerant, the high-temperature and high-pressure refrigerant gas is discharged to the exhaust pipe, providing power for the refrigeration cycle, thereby realizing the compression-condensation (heat release)-expansion-evaporation (heat absorption) refrigeration cycle.

By setting up the jet reservoir 600, an additional steam jet port 324 is added to the compressor. The gaseous refrigerant returning from the subcooler enters the jet port 324 to reach the middle cavity of the compressor, thereby reducing the temperature of the middle cavity. The refrigerant entering the compressor from the suction reservoir 500 is cooled by generating steam. The steam enters the compressor from the jet port 324, and its compression process is divided into two sections by the air replenishment process, becoming a quasi-two-stage compression process. The jet reduces the exhaust temperature and the exhaust superheat at the same time, reduces the length of the gas phase heat exchange zone of the condenser, increases the two-phase heat exchange area, and improves the heat exchange efficiency of the condenser. The greater the difference between the evaporation temperature and the condensation temperature, the better the effect will be. Therefore, the effect is more obvious in a low temperature environment.

The present application also proposes a refrigeration device, which includes the aforementioned compressor 100. The specific structure of the compressor 100 refers to the above embodiment. Since the present refrigeration device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The refrigeration device can be configured as, but not limited to, an air conditioner, a freezer, a refrigerator, etc.

The above are only optional embodiments of the present application, and do not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the inventive concept of the present application, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims (19)

A compressor, wherein the compressor comprises: A compression mechanism, comprising a compression chamber, a vane groove communicating with the compression chamber, and an injection channel communicating with the compression chamber; and An injection valve group includes a valve seat arranged on the compression mechanism and a valve body arranged on the valve seat, wherein the valve body is used to control the refrigerant flow from the injection channel to the compression chamber. In the height direction of the compression mechanism, the compression chamber has a first projection, the valve seat has a second projection, the second projection has a second axis extending along the length direction of the second projection, the vane groove has a third projection, the third projection has a third axis extending along the length direction of the third projection, the second axis is parallel to the third axis or is arranged at an angle, the second axis does not pass through the center of the first projection, the second projection has a first end away from the first projection, and a second end close to the first projection, and the vertical distance between the first end and the third axis is greater than or equal to the vertical distance between the second end and the third axis. The compressor according to claim 1, wherein the angle between the second axis and the third axis is α, 0°＜α＜90°. The compressor according to claim 2, wherein 30°≤α≤60°. The compressor according to any one of claims 1 to 3, wherein in the height direction of the compression mechanism, the jet passage has a fourth projection, the fourth projection has a fourth axis extending along the length direction of the fourth projection, and the angle between the fourth axis and the second axis is θ, 0°＜θ＜90°. The compressor according to claim 4, wherein 25°≤θ≤45°. The compressor according to claim 1, wherein the jet valve assembly further comprises a jet port disposed on the valve seat, The compressor further comprises a jet liquid reservoir, which is mounted on a housing of the compressor, and is provided with an air intake port, and the jet liquid reservoir is connected to the compression chamber via the air intake port and the jet port in sequence; The length of the intersection of the compression chamber and the injection port in the direction of the center of the compression chamber and the injection port is L, the radius of the compression chamber is R1, and 0.05＜L/R1＜0.1. The compressor according to claim 6, wherein the radius of the jet port is R2, and L/R2<1. The compressor according to claim 6, wherein the suction port is connected to the jet reservoir through the jet passage. The compressor according to any one of claims 1 to 8, wherein the compression mechanism comprises a main bearing, a cylinder, and a sub-bearing that limit the compression chamber, one compression chamber is arranged corresponding to at least one injection valve group, and the main bearing, and/or the cylinder, and/or the sub-bearing are provided with the injection valve group. The compressor according to any one of claims 1 to 9, wherein the cylinder is provided in plurality and the plurality of cylinders are distributed vertically. The compressor according to any one of claims 1 to 10, wherein the compression mechanism comprises a main bearing, a cylinder, a sub-bearing, and at least one partition plate that limit a plurality of the compression chambers, the partition plate is used to separate two adjacent compression chambers, one compression chamber is provided with at least one injection valve group, and the main bearing and/or the cylinder and/or the sub-bearing and/or the partition plate are provided with the injection valve group. The compressor according to claim 10, wherein the compression assembly further comprises a partition plate, and two adjacent cylinders are separated by the partition plate. The compressor according to any one of claims 1 to 12, wherein a plurality of the injection valve groups are provided. The compressor according to any one of claims 1 to 13, wherein in the height direction of the compression mechanism, the jet passage has a fourth projection, the fourth projection has a fourth axis extending along the length direction of the fourth projection, and the fourth axis is arranged between the second axis and the third axis; Alternatively, the second axis is disposed between the third axis and the fourth axis. The compressor according to any one of claims 1 to 14, wherein the valve body is configured as a valve plate. The compressor according to any one of claims 1 to 15, wherein the injection valve assembly further comprises a lift limiter provided on a side of the valve body away from the valve seat. The compressor according to any one of claims 1 to 16, wherein the injection valve assembly further comprises a fastener penetrating the valve body, the lift limiter, and the valve seat. The compressor according to any one of claims 1 to 17, wherein the compressor is a jet enthalpy increase compressor. A refrigeration device, wherein the refrigeration device comprises the compressor according to any one of claims 1 to 18.