A gas supply valve assembly and a compressor

Abstract

This utility model provides a gas-injection valve assembly and a compressor, relating to the field of compressor technology, and solves the technical problem in the prior art where a constantly open gas-injection channel in a compressor results in cooling capacity loss and affects compressor efficiency. The gas-injection valve assembly and compressor include a valve core structure with a conductive channel; a valve seat structure with a valve core chamber, in which the valve core structure is disposed and rotatable, and which has a gas-injection port and a gas-outlet channel; and a drive structure that drives the valve core structure to rotate within the valve core chamber, thereby enabling the conductive channel to connect the gas-injection port and the gas-outlet channel. This utility model provides a gas-injection valve assembly and compressor that improves compressor efficiency.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a gas replenishment valve assembly and a compressor. Background Technology

[0002] Gas-injection enthalpy-increasing compressors can efficiently heat under extremely low temperature conditions and cool under extremely high temperature conditions, enabling them to reach a wider market. Continuously improving compression efficiency and gas injection stability have become the main directions for the development of gas-injection enthalpy-increasing compressors.

[0003] Current rotary compressors mainly increase compression by setting up air supply channels on flanges, partitions, and cylinders, and by inputting intermediate pressure gas located between suction and discharge pressures. The opening and closing of the air supply channels are achieved by rotating the roller wall thickness.

[0004] However, in practice, the gas replenishment channel is normally open. When the pressure inside the compression chamber is lower than the replenishment pressure, gas replenishment continues. But when the pressure inside the compression chamber is higher than the replenishment pressure, the gas in the replenishment channel cannot enter the compression chamber, and replenishment stops. Because the replenishment channel is normally open, the high-pressure gas compressed in the compression chamber can flow back into the replenishment channel. This backflowing gas cannot be discharged from the compressor to participate in the system's cooling / heating cycle. In other words, this backflowing high-pressure gas represents a loss of cooling capacity; the work done to compress this backflowing high-pressure gas becomes wasted work, thus affecting compressor efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a gas replenishment valve assembly and a compressor to solve the technical problem in the prior art where the compressor gas replenishment channel is always open, resulting in cooling capacity loss and affecting compressor efficiency. The various technical effects of the preferred technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The air replenishment valve assembly provided by this utility model includes:

[0008] A valve core structure, wherein a conduction channel is provided on the valve core structure;

[0009] A valve seat structure is provided with a valve core chamber, and the valve core structure is disposed in the valve core chamber and can rotate in the valve core chamber. The valve core chamber is provided with an air inlet and an air outlet.

[0010] A drive structure is provided that can drive the valve core structure to rotate within the valve core chamber, so that the conduction channel can connect the air inlet and the air outlet.

[0011] As an optional implementation, the valve core structure includes a rotating part and a swinging part, the swinging part is connected to the rotating part, and the conduction channel is disposed on the rotating part;

[0012] The valve core chamber includes a rotating chamber and a swinging chamber. The rotating chamber is adapted to the rotating part, which is rotatably disposed in the rotating chamber. The swinging part is adapted to the swinging chamber, which is swingably disposed in the swinging chamber. The driving structure is used to drive the swinging part to swing in the swinging chamber.

[0013] As an optional implementation, the drive structure includes a drive channel disposed on the valve seat structure, the drive channel connecting the swing chamber and the compressor chamber, and positioning the swing portion between the drive channel and the air supply port.

[0014] As an optional implementation, the swinging part and the rotating part are integrally formed.

[0015] As an optional implementation, the air inlet is connected to the rotating cavity and the swing cavity, and the air outlet is connected to the rotating cavity.

[0016] As an optional implementation, the rotating part can be a spherical structure or a cylindrical structure.

[0017] As an optional implementation, the swinging part is a swing arm; and / or, the swing arm has a long strip structure.

[0018] As an optional implementation, the valve seat structure includes a valve seat body and a limiting seat body, the limiting seat body is disposed on the valve seat body, the valve core chamber is formed between the limiting seat body and the valve seat body, and the air supply port is disposed on the limiting seat body.

[0019] As an optional implementation, the valve seat body is provided with a first mating part and a second mating part, and the limiting seat body is provided with a third mating part and a fourth mating part. The third mating part is provided corresponding to the first mating part, and the third mating part and the first mating part enclose to form the rotating cavity. The second mating part and the fourth mating part are provided corresponding to each other, and the second mating part and the fourth mating part enclose to form the swing cavity.

[0020] A compressor including the gas supply valve assembly as described above.

[0021] As an optional implementation, it includes an upper cylinder, an intermediate plate, and a lower cylinder. The intermediate plate is disposed between the upper cylinder and the lower cylinder, and an air intake channel is provided on the intermediate plate. The upper cylinder and / or the lower cylinder are provided with the air replenishment valve assembly, and the air replenishment port is connected to the air intake channel.

[0022] The beneficial effects of this utility model are as follows: The gas replenishment valve assembly and compressor provided by this utility model include a valve core structure, a valve seat structure, and a drive structure. The valve core structure is provided with a conduction channel, and the valve seat structure is provided with a valve core chamber. The valve core structure is disposed in the valve core chamber and can rotate within the valve core chamber. The drive structure can drive the valve core structure to rotate within the valve core chamber, so that the conduction channel can connect the gas replenishment port and the gas outlet channel. When gas replenishment is required, the drive structure drives the conduction channel to connect the gas replenishment port and the gas outlet channel, thereby completing the gas replenishment. When gas replenishment is not required, the drive structure drives the conduction channel to disconnect the gas replenishment port and the gas outlet channel, thus preventing gas in the compressor chamber from entering the gas replenishment channel when the gas pressure in the compressor chamber is greater than the gas replenishment pressure. This solves the problem of cooling capacity loss and improves compressor efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the compressor structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the opening structure of the air supply channel of the compressor of this utility model;

[0026] Figure 3 This is a schematic diagram of the disconnected air supply channel of the compressor of this utility model;

[0027] Figure 4 This is a partial enlarged view (B) of the compressor of this utility model;

[0028] Figure 5 This is a perspective view of the lower cylinder of the compressor of this utility model;

[0029] Figure 6 This is a cross-sectional view of the lower cylinder of the compressor of this utility model;

[0030] Figure 7 This is a front view of the lower cylinder of the compressor of this utility model;

[0031] Figure 8 This is a cross-sectional view (AA) of the lower cylinder of the compressor of this utility model;

[0032] Figure 9 This is a front view of the limiting seat of the compressor of this utility model;

[0033] Figure 10 This is a cross-sectional view of the limiting seat of the compressor of this utility model.

[0034] In the picture:

[0035] 100. Valve core structure;

[0036] 200. Valve seat structure;

[0037] 300. Drive structure;

[0038] 400, upper cylinder;

[0039] 500, intermediate plate;

[0040] 600, Lower cylinder;

[0041] 110. Conductor channel;

[0042] 120. Rotating part;

[0043] 130. Swinging part;

[0044] 210. Valve core chamber;

[0045] 220. Inject air inlet;

[0046] 230. Vent passage;

[0047] 240. Rotating cavity;

[0048] 250. Swinging chamber;

[0049] 260. Valve seat body;

[0050] 270. Limiting seat;

[0051] 261. First Coordination Department;

[0052] 262. Second Coordination Unit;

[0053] 271. Third Coordination Department;

[0054] 272. Fourth Coordination Department;

[0055] 310. Drive channel;

[0056] 510. Air intake passage. Detailed Implementation

[0057] Please refer to the attached diagram below. Figures 1-10 This document explains the content of this utility model and its differences from existing technologies. The technical solutions (including preferred solutions) of this utility model are further described in detail below through accompanying drawings and examples of optional embodiments. It should be noted that any technical feature or solution in this embodiment is one or more of a variety of optional technical features or solutions. For the sake of brevity, this document cannot exhaustively list all alternative technical features and solutions of this utility model, nor is it convenient to emphasize that each implementation of a technical feature is one of multiple optional implementations. Therefore, those skilled in the art should understand that any technical means provided by this utility model can be replaced, or any two or more technical means or features provided by this utility model can be combined to obtain a new technical solution. No technical feature or solution in this embodiment limits the scope of protection of this utility model. The scope of protection of this utility model should include any alternative technical solutions that can be conceived by those skilled in the art without creative effort, as well as new technical solutions obtained by combining any two or more technical means or features provided by this utility model.

[0058] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0060] This utility model provides a gas injection valve assembly and a compressor for improving compressor efficiency.

[0061] The following is combined Figures 1-10The technical solution provided by this utility model will be described in more detail.

[0062] This utility model provides an air replenishment valve assembly, including:

[0063] A valve core structure 100 is provided with a conduction channel 110;

[0064] The valve seat structure 200 is provided with a valve core chamber 210. The valve core structure 100 is disposed in the valve core chamber 210 and can rotate in the valve core chamber 210. The valve core chamber 210 is provided with an air inlet 220 and an air outlet 230.

[0065] The drive structure 300 is capable of driving the valve core structure 100 to rotate within the valve core chamber 210, so that the conduction channel 110 can connect the air supply port 220 and the air outlet channel 230.

[0066] The air supply valve assembly provided by this utility model includes a valve core structure 100, a valve seat structure 200, and a drive structure 300. The valve core structure 100 is provided with a conduction channel 110, and the valve seat structure 200 is provided with a valve core chamber 210. The valve core structure 100 is disposed within the valve core chamber 210 and can rotate within it. The drive structure 300 can drive the valve core structure 100 to rotate within the valve core chamber 210, thereby enabling the conduction channel 110 to conduct. When air replenishment is needed, the drive structure 300 drives the conduction channel 110 to connect the air replenishment port 220 and the air outlet channel 230, thus completing the air replenishment. When air replenishment is not needed, the drive structure 300 drives the conduction channel 110 to disconnect the air replenishment port 220 and the air outlet channel 230, thereby preventing gas in the compressor chamber from entering the air replenishment channel when the air pressure in the compressor chamber is greater than the air replenishment pressure, solving the problem of cooling capacity loss and improving compressor efficiency.

[0067] It should be noted that the air inlet 220 is connected to the air supply channel, the air outlet channel 230 is connected to the compressor chamber, the valve core chamber 210 is disposed between the air inlet 220 and the air outlet channel 230, the valve core structure 100 is disposed within the valve core chamber 210, and the conduction channel 110 is rotatable between a first position connecting the air inlet 220 and the air outlet channel 230 and a second position disconnecting the air inlet 220 and the air outlet channel 230.

[0068] In some embodiments of this utility model, the valve core structure 100 includes a rotating part 120 and a swinging part 130, the swinging part 130 is connected to the rotating part 120, and the conduction channel 110 is disposed on the rotating part 120;

[0069] The valve core chamber 210 includes a rotating chamber 240 and a swinging chamber 250. The rotating chamber 240 is adapted to the rotating part 120 and the rotating part 120 is rotatably disposed in the rotating chamber 240. The swinging part 130 is adapted to the swinging chamber 250 and the swinging part 130 is swingably disposed in the swinging chamber 250. The driving structure 300 is used to drive the swinging part 130 to swing in the swinging chamber 250.

[0070] In some embodiments of the present invention described above, the valve core structure 100 includes a rotating part 120 and a swinging part 130. The swinging part 130 is connected to the rotating part 120. The guiding channel 110 is disposed on the rotating part 120. When the rotating part 120 rotates, the guiding channel 110 can connect the air inlet 220 and the air outlet 230.

[0071] The valve core chamber 210 includes a rotating chamber 240 and a swinging chamber 250. The rotating chamber 240 is adapted to the rotating part 120, which is rotatably disposed within the rotating chamber 240. The swinging part 130 is adapted to the swinging chamber 250, which is swingably disposed within the swinging chamber 250. The driving structure 300 is used to drive the swinging part 130 to swing within the swinging chamber 250, thereby causing the rotating part 120 to rotate within the rotating chamber 240, thus enabling the connecting channel 110 to connect the air supply port 220 and the air outlet channel 230.

[0072] Optionally, the rotating part 120 is rotatably disposed within the rotating cavity 240 via a rotating shaft.

[0073] In some embodiments of the present invention, the drive structure 300 includes a drive channel 310 disposed on the valve seat structure 200, the drive channel 310 connecting the swing chamber 250 and the compressor chamber, and positioning the swing part 130 between the drive channel 310 and the air supply port 220.

[0074] In some embodiments of the present invention described above, a drive channel 310 is provided on the valve seat structure 200. The drive channel 310 connects the swing chamber 250 and the compressor chamber, and the swing part 130 is located between the drive channel 310 and the air supply port 220. When the air pressure in the compressor chamber is less than the air supply pressure, the air supply pressure can drive the swing part 130 to swing, thereby enabling the conduction channel 110 to connect the air outlet channel 230 and the air supply port 220. The air supply channel can complete the air supply.

[0075] When the gas pressure inside the compressor chamber is greater than the replenishment pressure, the gas inside the compressor chamber enters the drive channel 310 to drive the swing part 130 to swing in the swing chamber 250, thereby driving the rotating part 120 to rotate. The conduction channel 110 rotates accordingly to disconnect the replenishment port 220 and the outlet channel 230, thereby realizing the automatic closure of the replenishment channel. By utilizing the change in gas pressure inside the compressor chamber, the replenishment channel can switch between the two states of conduction and closure, which can quickly respond to pressure changes, improve the compressor replenishment efficiency, and improve the compressor capacity.

[0076] It should be noted that the gas replenishment valve assembly provided by this utility model can achieve automatic control through differential pressure drive, without the need for external power or spring reset device, and has a fast response speed. At the same time, the gas replenishment channel and the swing path of the swing part 130 are independent of each other, effectively avoiding interference and improving gas replenishment efficiency, system stability and sealing performance. Through the movement of the valve core structure 100, gas replenishment is achieved at low pressure and backflow of high-pressure gas is prevented at high pressure, thereby achieving a highly efficient gas replenishment process and improving the compressor capacity.

[0077] In some embodiments of this utility model, the swinging part 130 and the rotating part 120 are integrally formed.

[0078] In some embodiments of this utility model, the air inlet 220 is connected to the rotating cavity 240 and the swing cavity 250, and the air outlet channel 230 is connected to the rotating cavity 240.

[0079] In some embodiments of the present invention described above, the air inlet 220 is connected to both the rotating cavity 240 and the swing cavity 250. When the air pressure inside the compressor chamber is greater than the air replenishment pressure, the gas pressure inside the compressor chamber is greater than the pressure at the air replenishment inlet 220. The gas inside the compressor can then drive the swinging part 130 to swing within the swing cavity 250, thereby closing the air replenishment channel. The air outlet channel 230 is connected to the rotating cavity 240, and the connecting channel 110 can connect the air outlet channel 230 and the air replenishment inlet 220. When the air pressure inside the compressor chamber is less than the air replenishment pressure, the air replenishment pressure can drive the swinging part 130 to swing, thereby allowing the connecting channel 110 to connect the air outlet channel 230 and the air replenishment inlet 220, enabling the air replenishment channel to complete the air replenishment.

[0080] In some embodiments of this utility model, the rotating part 120 is a spherical structure or a cylindrical structure.

[0081] In some embodiments of this utility model, the swing part 130 is a swing arm; and / or, the swing arm has a long strip structure.

[0082] In some embodiments of this utility model, the valve seat structure 200 includes a valve seat body 260 and a limiting seat 270. The limiting seat 270 is disposed on the valve seat body 260, the valve core chamber 210 is formed between the limiting seat 270 and the valve seat body 260, and the air inlet 220 is disposed on the limiting seat 270.

[0083] In some embodiments of the present invention described above, the valve seat structure 200 includes a valve seat body 260 and a limiting seat 270. The limiting seat 270 is connected to the valve seat body 260, and the valve core chamber 210 is formed between the limiting seat 270 and the valve seat body 260. The central hole of the limiting seat 270 constitutes an air supply port 220.

[0084] This utility model also provides a compressor, including the gas replenishment valve assembly as described above.

[0085] The compressor provided by this utility model includes the gas replenishment valve assembly as described above, which has the beneficial effect of preventing gas in the compressor chamber from entering the gas replenishment channel when the gas pressure in the compressor chamber is greater than the gas replenishment pressure, thus solving the problem of cooling capacity loss and improving compressor efficiency.

[0086] In some embodiments of this utility model, an upper cylinder 400, an intermediate plate 500, and a lower cylinder 600 are included. The intermediate plate 500 is disposed between the upper cylinder 400 and the lower cylinder 600. An air intake channel 510 is provided on the intermediate plate 500. The upper cylinder 400 and / or the lower cylinder 600 are provided with the air replenishment valve assembly. The air replenishment port 220 is connected to the air intake channel 510.

[0087] In some embodiments of the present invention described above, an upper cylinder 400, an intermediate plate 500, and a lower cylinder 600 are included. The upper cylinder 400 and / or the lower cylinder 600 are provided with the air replenishment valve assembly, and the air replenishment port 220 is connected to the air intake channel 510, thereby ensuring that both the upper cylinder 400 and the lower cylinder 600 can avoid cooling capacity loss and improve compressor efficiency.

[0088] Example 1:

[0089] The compressor provided by this utility model includes an upper cylinder 400, an intermediate plate 500, and a lower cylinder 600. The intermediate plate 500 is disposed between the upper cylinder 400 and the lower cylinder 600. An air inlet channel 510 is provided on the intermediate plate 500. An air replenishment valve assembly is provided on the upper cylinder 400 and / or the lower cylinder 600. The air replenishment port 220 of the air replenishment valve assembly is connected to the air inlet channel 510, and the air outlet channel 230 of the air replenishment valve assembly is connected to the compressor chamber.

[0090] The air replenishment valve assembly includes a valve core structure 100, a valve seat structure 200, and a drive structure 300. The valve core structure 100 includes a rotating part 120 and a swinging part 130. The swinging part 130 is connected to the rotating part 120. The conduction channel 110 is provided on the rotating part 120.

[0091] The valve core chamber 210 includes a rotating chamber 240 and a swinging chamber 250. The rotating chamber 240 is adapted to the rotating part 120, which is rotatably disposed within the rotating chamber 240. The swinging part 130 is adapted to the swinging chamber 250, which is swingably disposed within the swinging chamber 250. The driving structure 300 is used to drive the swinging part 130 to swing within the swinging chamber 250, thereby causing the rotating part 120 to rotate within the rotating chamber 240, so that the connecting channel 110 connects the air supply port 220 and the air outlet channel 230.

[0092] Furthermore, the drive structure 300 includes a drive channel 310 disposed on the valve seat structure 200, the drive channel 310 connecting the swing chamber 250 and the compressor chamber, and positioning the swing part 130 between the drive channel 310 and the air supply port 220.

[0093] Specifically, the valve seat structure 200 includes a valve seat body 260 and a limiting seat 270. The limiting seat 270 is disposed on the valve seat body 260, and the valve core chamber 210 is formed between the limiting seat 270 and the valve seat body 260. The top through hole of the limiting seat 270 is an air inlet 220.

[0094] More specifically, the valve seat body 260 is provided with a first mating part 261 and a second mating part 262, and the limiting seat body 270 is provided with a third mating part 271 and a fourth mating part 272. The third mating part 271 is correspondingly provided with the first mating part 261, and the third mating part 271 and the first mating part 261 enclose to form the rotating cavity 240. The second mating part 262 and the fourth mating part 272 are correspondingly provided, and the second mating part 262 and the fourth mating part 272 enclose to form the swing cavity 250.

[0095] The air outlet channel 230 is located at the bottom of the first mating part 261, and the drive channel 310 is located at the bottom of the second mating part 262. Both the air outlet channel 230 and the drive channel 310 are connected to the compressor chamber.

[0096] When the air pressure in the compressor chamber is less than the replenishment pressure, the replenishment pressure in the intake passage 510 can drive the swing part 130 to swing, thereby enabling the conduction passage 110 to connect the outlet passage 230 and the replenishment port 220, and the replenishment passage can complete the replenishment.

[0097] When the gas pressure inside the compressor chamber is greater than the replenishment pressure, the gas inside the compressor chamber enters the drive channel 310 to drive the swing part 130 to swing in the swing chamber 250, thereby driving the rotating part 120 to rotate. The conducting channel 110 rotates accordingly to disconnect the replenishment port 220 and the outlet channel 230, thereby achieving automatic closure of the replenishment channel. The refrigerant in the inlet channel 510 cannot enter the compressor chamber. This utility model utilizes the change in gas pressure inside the compressor chamber to switch between the open and closed states of the replenishment channel, which can quickly respond to pressure changes, improve the compressor replenishment efficiency, and increase the compressor capacity.

[0098] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0099] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A gas replenishment valve assembly, characterized in that, include: A valve core structure, wherein a conduction channel is provided on the valve core structure; A valve seat structure is provided with a valve core chamber, and the valve core structure is disposed in the valve core chamber and can rotate in the valve core chamber. The valve core chamber is provided with an air inlet and an air outlet. A drive structure is provided that can drive the valve core structure to rotate within the valve core chamber, so that the conduction channel can connect the air inlet and the air outlet.

2. The air supply valve assembly according to claim 1, characterized in that, The valve core structure includes a rotating part and a swinging part, the swinging part is connected to the rotating part, and the conduction channel is disposed on the rotating part; The valve core chamber includes a rotating chamber and a swinging chamber. The rotating part is rotatably disposed in the rotating chamber, and the swinging part is swingably disposed in the swinging chamber. The driving structure is used to drive the swinging part to swing in the swinging chamber.

3. The air supply valve assembly according to claim 2, characterized in that, The drive structure includes a drive channel disposed on the valve seat structure, the drive channel connecting the swing chamber and the compressor chamber, and the swing part being located between the drive channel and the air supply port.

4. The air supply valve assembly according to claim 2, characterized in that, The swinging part and the rotating part are integrally formed.

5. The air supply valve assembly according to claim 2, characterized in that, The rotating part has a spherical or cylindrical structure.

6. The air supply valve assembly according to claim 2, characterized in that, The swinging part is a swing arm; and / or, the swing arm has a long strip structure.

7. The air supply valve assembly according to claim 2, characterized in that, The valve seat structure includes a valve seat body and a limiting seat body. The limiting seat body is disposed on the valve seat body, the valve core chamber is formed between the limiting seat body and the valve seat body, and the air supply port is disposed on the limiting seat body.

8. The air supply valve assembly according to claim 7, characterized in that, The valve seat body is provided with a first mating part and a second mating part, and the limiting seat body is provided with a third mating part and a fourth mating part. The third mating part and the first mating part enclose the rotating cavity, and the second mating part and the fourth mating part enclose the swing cavity.

9. A compressor, characterized in that, Includes the air supply valve assembly as described in any one of claims 1-8.

10. The compressor according to claim 9, characterized in that, It includes an upper cylinder, an intermediate plate, and a lower cylinder. The intermediate plate is disposed between the upper cylinder and the lower cylinder and has an air intake channel. The upper cylinder and / or the lower cylinder is provided with the air replenishment valve assembly, and the air replenishment port is connected to the air intake channel.

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