Compressor and refrigeration device

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

[0001] 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

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

[0003] Conventional compressors include a compression mechanism and an injection valve assembly. The compression mechanism includes a cylinder with a compression chamber. The valve seat of the injection valve assembly is located on the sidewall of the cylinder and extends radially along the compression chamber. The maximum length of the valve seat is limited by the thickness of the cylinder sidewall. This results in a relatively short valve seat. Technical issues

[0004] The main purpose of this application is to provide a compressor, aiming to increase the length of the valve seat. Technical Solutions

[0005] To achieve the above objectives, the compressor proposed in this application includes:

[0006] 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

[0007] The jet valve group includes a valve seat provided on the compression mechanism and a valve body provided on the valve seat, the valve body is used to control the refrigerant flow from the jet 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 sliding 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, 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.

[0008] In one embodiment, the included angle between the second axis and the third axis is α, 0°<α<90°.

[0009] In one embodiment, 30°≤α≤60°.

[0010] 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°.

[0011] In one embodiment, 25°≤θ≤45°.

[0012] In one embodiment, the jet valve assembly further includes a jet port provided on the valve seat.

[0013] The compressor further includes a jet liquid reservoir, which is mounted on a housing of the compressor and is provided with an air intake port. The jet liquid reservoir is in communication with the compression chamber via the air intake port and the jet port in sequence.

[0014] The length of the intersection of the compression chamber and the air injection port in the direction of the center of the compression chamber and the center of the air injection port is L, the radius of the compression chamber is R1, and 0.05<L / R1<0.1.

[0015] In one embodiment, the radius of the air jet is R2, and L / R2<1.

[0016] In one embodiment, the air inlet is connected to the jet liquid reservoir through the jet channel.

[0017] 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 provided with at least one jet valve group, and the main bearing, and / or the cylinder, and / or the secondary bearing are provided with the jet valve group.

[0018] In one embodiment, there are multiple cylinders, and the multiple cylinders are distributed up and down.

[0019] In one embodiment, the compression mechanism includes a main bearing, a cylinder, a secondary bearing, and at least one partition plate that define a plurality of 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.

[0020] In one embodiment, the compression assembly further includes a partition plate, and two adjacent cylinders are separated by the partition plate.

[0021] In one embodiment, a plurality of the air injection valve groups are provided.

[0022] 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 fourth axis is arranged between the second axis and the third axis;

[0023] Alternatively, the second axis is located between the third axis and the fourth axis.

[0024] In one embodiment, the valve body is configured as a valve plate.

[0025] In one embodiment, the injection valve assembly further includes a lift limiter provided on a side of the valve body facing away from the valve seat.

[0026] In one embodiment, the jet valve assembly further includes a fastener penetrating the valve body, the lift limiter, and the valve seat.

[0027] In one embodiment, the compressor is a jet-injection compressor.

[0028] The present application also provides a refrigeration device, which includes the aforementioned compressor. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0031] FIG2 is a bottom view of the main bearing in FIG1 ;

[0032] Figure 3 is an enlarged view of point A in Figure 1;

[0033] FIG4 is a schematic structural diagram of a compressor according to the present application in which a valve seat is installed on a main bearing;

[0034] FIG5 is a schematic structural diagram of a dual-cylinder compressor in an embodiment of the present application.

[0035] Description of Figure Numbers:

[0036] Reference number name Reference number name 100 compressor 400 crankshaft 200 housing 500 suction reservoir 300 compression mechanism 600 jet reservoir 310 main bearing 700 motor 320 cylinder 810 second axis 321 compression chamber 820 third axis 322 partition 830 fourth axis 323 jet channel 910 first projection 324 jet port 920 second projection 330 auxiliary bearing 930 fourth projection

[0037] The purpose, features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] 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 various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection, indirect connection through an intermediate medium, or abutment; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] Conventional compressors include a compression mechanism and an injection valve assembly. The compression mechanism includes a cylinder with a compression chamber. The valve seat of the injection valve assembly is located on the sidewall of the cylinder and extends radially along the compression chamber. The maximum length of the valve seat is limited by the thickness of the cylinder sidewall. Consequently, the valve seat is relatively short.

[0043] 1 to 5 , in one embodiment of the present application, the compressor 100 includes a compression mechanism 300 and an injection valve assembly. The compression mechanism 300 includes 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 mounted on the compression mechanism 300 and a valve body mounted on the valve seat. The valve body controls the flow of refrigerant from the jet passage 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, and the second projection 920 has a second axis 810 extending along its length. The vane slot has a third projection, and the third projection has a third axis 820 extending along its length. The second axis 810 and the third axis 820 are parallel or at an angle, and 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 closer to the first projection 910. The perpendicular distance between the first end and the third axis 820 is greater than or equal to the perpendicular distance between the second end and the third axis 820. This increases the length of the valve seat. Taking the valve seat disposed in 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 length of the valve seat is at least greater than the thickness of the sidewall of the cylinder 320. It will be appreciated that when the valve seat is disposed in the main bearing 310, auxiliary bearing 330, or middle diaphragm of the compression mechanism 300, since the valve seat is not restricted by the thickness of the cylinder wall 320, the length of the valve seat can be further increased. The second projection 920 can even overlap with the first projection 910, thereby further reducing the jet resistance of the jet passage 323.

[0044] It should be noted that when a conventional air conditioner is operating in heating mode, the heating capacity of the compressor 100 decreases as the outdoor ambient temperature decreases. This is particularly true when the outdoor ambient temperature is between -10°C and -20°C, where the heating capacity decreases significantly. The compressor 100 of this solution is configured as a jet-assisted reheating compressor 100. Using a compressor 100 with this jet-assisted reheating function can significantly increase heating capacity.

[0045] The compressor 100 may be a vertical compressor 100. In the following description of this application, the compressor 100 is taken as an example of a vertical compressor 100. Of course, those skilled in the art will understand that the compressor 100 may also be a horizontal compressor 100. Here, it should be noted that the "vertical compressor 100" may 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" may be understood as a compressor 100 in which the central axis of the cylinder 320 is approximately parallel to the mounting surface of the compressor 100.

[0046] It will be appreciated that the compressor 100 of this embodiment further includes a housing 200, a motor 700, an intake accumulator 500, and an ejection accumulator 600. The motor 700, the compression mechanism 300, and the ejection valve assembly are disposed within the housing 200. The motor 700 is used to drive the compression mechanism 300 to compress the refrigerant entering the compression chamber 321. The intake accumulator 500 and the ejection accumulator 600 are in communication with the compression chamber 321. Specifically, the ejection accumulator 600 is in communication with the compression chamber 321 via the ejection passage 323, and the intake accumulator 500 is in communication with the compression chamber 321 via the intake port.

[0047] 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.

[0048] When the compressor 100 is a single-cylinder compressor 100, the cylinder 320 assembly includes a cylinder 320, which has a compression chamber 321 and a vane groove connected to the compression chamber 321. A piston is provided in the compression chamber 321, and the piston can roll along the inner wall of the compression chamber 321. The vane groove extends radially along the cylinder 320. A vane is provided in the vane groove, and the vane can move in the vane groove and the inner end of the vane abuts against the outer wall of the piston. A cylinder 320 intake port and a cylinder 320 exhaust port are formed on the cylinder 320. The cylinder 320 intake port is used to pass the refrigerant to be compressed into the compression chamber 321, and the cylinder 320 exhaust port is used to discharge the compressed refrigerant out of the cylinder 320. It should be noted here that the direction "inward" can be understood as the direction toward the center of the cylinder 320, and the opposite direction is defined as "outward", that is, the direction away from the center of the cylinder 320.

[0049] When the compressor 100 is a multi-cylinder compressor 100, the cylinder 320 assembly includes a plurality of cylinders 320 arranged axially, with a partition disposed between each adjacent pair of cylinders 320. Each cylinder 320 has a compression chamber 321 and a vane slot communicating with the compression chamber 321. Each compression chamber 321 is provided with a piston, and each vane slot is provided with a vane. It will be appreciated that the remaining components of the multi-cylinder compressor 100 are substantially the same as those of the single-cylinder compressor 100 and will not be further described herein.

[0050] During the operation of the jet regenerative compressor 100, the intermediate-pressure refrigerant gas in the jet accumulator 600 enters the compression chamber 321 of the jet regenerative compressor 100 through the jet passage 323 as needed. The pressure of the "intermediate-pressure refrigerant gas" here is a relative concept, meaning that the pressure of the refrigerant in the jet accumulator 600 is higher than the pressure at the intake port of the jet regenerative compressor 100, but lower than the pressure at the exhaust port of the jet regenerative compressor 100.

[0051] 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 .

[0052] 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.

[0053] There are many different 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, where 0°<α<90°. Furthermore, in one embodiment, 30°≤α≤60°.

[0054] The positional relationship between the valve seat and the jet passage 323 can be varied. In one embodiment, the jet passage 323 has a fourth projection 930 in the height direction of the compression mechanism 300. The fourth projection 930 has a fourth axis 830 extending along the length of the fourth projection 930. The fourth axis 830 forms an angle θ with the second axis 810, where 0°<θ<90°. This minimizes the impact of the valve seat on the jet passage 323. Furthermore, in one embodiment, 25°≤θ≤45°. This minimizes the impact of the valve seat on the jet passage 323.

[0055] In one embodiment, the compression mechanism 300 includes a main bearing 310, a cylinder 320, and a secondary bearing 330, which define a compression chamber 321. Each compression chamber 321 is provided with at least one jet valve assembly. The main bearing 310, the cylinder 320, and / or the secondary bearing 330 are each provided with a jet valve assembly. This can be achieved in a variety of ways, including, for example, providing the main bearing 310 with a jet valve assembly; or providing the main bearing 310 and the cylinder 320 with jet valve assemblies; or providing the main bearing 310, the cylinder 320, and the secondary bearing 330 with jet valve assemblies; or providing the cylinder 320 with a jet valve assembly; or providing the cylinder 320 and the secondary bearing 330 with jet valve assemblies; or providing the secondary bearing 330 with a jet valve assembly; or providing the main bearing 310 or the secondary bearing 330 with a jet valve assembly. Furthermore, the number of jet passages 323 can be adjusted based on actual needs. For example, the main bearing 310 is equipped with one jet valve assembly, and the jet passage 323 has one jet valve assembly. Alternatively, the main bearing 310 may be equipped with two jet valve assemblies, and two jet passages 323 may be provided, with one jet passage 323 corresponding to each jet valve assembly. Alternatively, the jet passage 323 may be equipped with one jet valve assembly, and the jet passage 323 may have two jet ports 324, each of which communicates with the compression chamber 321, with one jet port 324 corresponding to each jet valve assembly. Furthermore, the compression mechanism 300 is equipped with one cylinder 320, which improves the sealing performance of the compression chamber 321.

[0056] In one embodiment, the compression mechanism 300 includes a main bearing 310, a cylinder 320, a secondary bearing 330, and at least one partition 322, which define a plurality of compression chambers 321. The partition 322 is used to separate two adjacent compression chambers 321. Each compression chamber 321 corresponds to at least one jet valve assembly. The main bearing 310, the cylinder 320, the secondary bearing 330, and / or the partition 322 are each provided with a jet valve assembly. It will be appreciated that the compression mechanism 300 has at least two compression chambers 321. A greater number of compression chambers 321 results in less vibration and noise in the compressor 100. There are many options for this solution. For example, the main bearing 310, the cylinder 320, the auxiliary bearing 330 and the partition 322 are respectively provided with an air jet valve group; or, the main bearing 310, the cylinder 320 and the auxiliary bearing 330 are respectively provided with an air jet valve group; or, the main bearing 310, the cylinder 320 and the partition 322 are respectively provided with an air jet valve group; or, the main bearing 310, the cylinder 320 and the partition 322 are respectively provided with an air jet valve group; or, The main bearing 310 and the cylinder 320 are each provided with an air jet valve assembly; or, the main bearing 310 and the auxiliary bearing 330 are each provided with an air jet valve assembly; or, the main bearing 310 and the partition 322 are each provided with an air jet valve assembly; or, the cylinder 320 and the auxiliary bearing 330 are each provided with an air jet valve assembly; or, the cylinder 320 and the partition 322 are each provided with an air jet valve assembly; or, the auxiliary bearing 330 and the partition 322 are each provided with an air jet valve assembly; or, the cylinder 320 is provided with an air jet valve assembly; or, the intermediate partition 322 is provided with an air jet valve assembly. Furthermore, the number of air 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 an air jet valve assembly.

[0057] It should be noted that the jet channel 323 and the corresponding jet valve group can be provided on different components. For example, a jet channel 323 is provided on the main bearing 310 , and the jet valve group corresponding to the jet channel 323 can be provided on the cylinder 320 .

[0058] In one embodiment, a plurality of injection valve assemblies are provided, so as to better control the refrigerant flow from the injection channel 323 to the compression chamber 321 .

[0059] The relative positions of the valve seat, the jet passage 323, and the vane groove can be varied. In one embodiment, the jet passage 323 has a fourth projection 930 in the height direction of the compression mechanism 300. The fourth projection 930 has a fourth axis 830 extending along the length of the fourth projection 930. The fourth axis 830 is disposed between the second axis 810 and the third axis 820. Alternatively, the second axis 810 is disposed between the third axis 820 and the fourth axis 830.

[0060] In one embodiment, the valve body is configured as a valve disc, and the valve disc 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 disc is provided at the valve seat, and the other end is provided at the jet port 324. In this way, the refrigerant flowing in the jet channel 323 impacts the other end of the valve disc, causing the valve disc to bend, thereby increasing the opening of the jet port 324 and allowing more refrigerant to enter the compression chamber 321. In addition, the longer valve seat also provides installation space for the valve disc, allowing the valve disc to be made longer. The longer valve disc can reduce the rigidity of the valve disc, making it easier for the valve disc 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.

[0061] In one embodiment, the air injection valve assembly further includes a lift limiter located on the side of the valve body facing away from the valve seat. The lift limiter is used to limit the lift of the valve disc, thereby limiting the flow of refrigerant entering the compression chamber 321. Specifically, the lift limiter is used to limit the maximum travel of the other end of the valve disc, thereby controlling the maximum opening of the air injection port 324.

[0062] In one embodiment, the jet valve assembly further includes fasteners extending through the valve body, lift stop, and valve seat. These fasteners secure the valve disc and lift stop to the valve seat. These fasteners may be, but are not limited to, screws. Furthermore, in one embodiment, the end of the lift stop remote from the opening of the jet passage 323 and the end of the valve disc remote from the opening of the jet passage 323 are secured to the valve seat via fasteners.

[0063] 1 and 4 , the present application provides a compressor, comprising:

[0064] Housing 200;

[0065] A cylinder 320 is installed in the housing 200 and has a compression chamber 321 therein;

[0066] a valve seat 920 , which is mounted on the cylinder 320 and has an air injection port 324 ; and

[0067] A jet reservoir 600 is mounted on the housing 200 and is provided with an air intake port. The jet reservoir 600 is in communication with the compression chamber 321 via the air intake port and the jet port 324 .

[0068] The length of the intersection of the compression chamber 321 and the air jet 324 in the direction of the center of the compression chamber 321 and the air jet 324 is L, the radius of the compression chamber 321 is R1, and 0.05<L / R1<0.1.

[0069] The compressor proposed in this application includes a housing 200, a cylinder 320, a valve seat and a jet reservoir 600. The cylinder 320 is installed on the housing 200, and a compression chamber 321 is provided in the cylinder 320. The valve seat is provided with a jet port 324. The jet reservoir 600 is installed on the housing 200. The jet reservoir 600 is provided with an air intake port, 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. The jet port 324 is directly connected to the compression chamber 321, which is different from 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, 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.

[0070] 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.

[0071] 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 further 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 simultaneously drive the plurality of cylinders 320 for compression processing.

[0072] Furthermore, the compression assembly also includes a partition 322, and the two adjacent cylinders 320 are separated by the partition 322. If multiple cylinders 320 are set independently, it is necessary to perform separate 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 side. 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 connections 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.

[0073] 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.

[0074] 1 and 4 , in another embodiment, the compressor further includes a bearing, wherein the bearing includes a main bearing 310 , 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 , the secondary bearing 330 is mounted on the cylinder 320 , and the valve seat is mounted on the secondary bearing 330 .

[0075] 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 provided 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 uppermost cylinder 320, and a secondary bearing 330 is installed on the lower end of the lowermost cylinder 320, and the two adjacent side walls are separated by a partition 322. At this time, the valve seat can be provided 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.

[0076] Furthermore, the compression assembly also includes a roller and a vane. The bearing is provided with a vane groove, the crankshaft 400 is provided with an eccentric part, and the roller is installed on the eccentric part. 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. Through the change in volume, the refrigerant in the low-pressure chamber is compressed into high pressure. The vane moves back and forth, and its main function is to press against the outer diameter of the piston at one end to prevent the refrigerant in the high and low pressure chambers from leaking.

[0077] 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.

[0078] In this 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 between 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.

[0079] Furthermore, the compressor also includes a valve limiter. By setting the valve limiter, the opening height of the valve can be limited, so that the opening height of the valve can be controlled, and the opening and closing time of the valve can be more effectively controlled.

[0080] Furthermore, the compressor also includes an air intake accumulator 500, which is an important component of the compressor. It can store, separate gas and liquid, filter, muffle, and buffer the refrigerant. It includes components such as a cylinder, an air inlet pipe, an air outlet pipe, and a filter. Its working principle is as follows:

[0081] 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, the refrigerant coming out of the evaporator will have liquid refrigerant entering 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 inhaling liquid refrigerant and causing liquid hammer.

[0082] 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 intake port and the jet port 324 as needed and enter the compression chamber 321; 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 intake reservoir 500, and lower than the pressure at the exhaust port of the compression chamber 321.

[0083] 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.

[0084] 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 and reaches 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, so the effect is more obvious in a low temperature environment.

[0085] This application also provides a refrigeration device, comprising the aforementioned compressor 100. The specific structure of compressor 100 is similar to that of the aforementioned embodiments. Since this refrigeration device utilizes all of the technical solutions of all of the aforementioned embodiments, it at least possesses all of the beneficial effects provided by the technical solutions of the aforementioned embodiments, which are not described in detail here. The refrigeration device may be configured, but is not limited to, as an air conditioner, a freezer, a refrigerator, or the like.

[0086] The above are merely optional embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. 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.

2. The compressor according to claim 1, wherein: The included angle between the second axis and the third axis is α, 0°<α<90°.

3. The compressor according to claim 2, wherein: 30°≤α≤60°。 4. The compressor according to any one of claims 1 to 3, wherein: 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°.

5. The compressor according to claim 4, wherein: 25°≤θ≤45°.

6. 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.

7. The compressor according to claim 6, wherein: The radius of the jet port is R2, and L / R2<1.

8. The compressor according to claim 6, wherein: The air inlet is communicated with the jet liquid reservoir through the jet passage.

9. The compressor according to any one of claims 1 to 8, wherein: The compression mechanism includes 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. The main bearing, and / or the cylinder, and / or the sub-bearing are provided with the injection valve group.

10. The compressor according to any one of claims 1 to 9, wherein: The cylinders are provided in plurality, and the plurality of cylinders are distributed up and down.

11. The compressor according to any one of claims 1 to 10, wherein: The compression mechanism includes 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 jet valve group. The main bearing and / or the cylinder and / or the sub-bearing and / or the partition plate are provided with the jet valve group.

12. The compressor according to claim 10, wherein: The compression assembly further includes a partition plate, and two adjacent cylinders are separated by the partition plate.

13. The compressor according to any one of claims 1 to 12, wherein: The jet valve group is provided with a plurality of them.

14. 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.

15. The compressor according to any one of claims 1 to 14, wherein: The valve body is configured as a valve sheet.

16. The compressor according to any one of claims 1 to 15, wherein: The jet valve assembly further comprises a lift limiter arranged on a side of the valve body away from the valve seat.

17. The compressor according to any one of claims 1 to 16, wherein: The jet valve assembly further includes a fastener penetrating the valve body, the lift limiter, and the valve seat.

18. The compressor according to any one of claims 1 to 17, wherein: The compressor is a jet enthalpy increase compressor.

19. A refrigeration device, wherein: The refrigeration device comprises the compressor according to any one of claims 1 to 18.

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