Compressor exhaust device and heat pump system

Abstract

The utility model relates to a compressor exhaust device and a heat pump system, and the compressor exhaust device comprises a shell provided with a containing cavity; the air bag is arranged in the accommodating cavity; the first end of the first pipeline is communicated with the exhaust pipe, the second end of the first pipeline is communicated with the air bag, and a valve is arranged on the first pipeline; one end of the second pipeline is communicated with the exhaust pipe, and a pressure relief hole communicated with the containing cavity is formed in the second pipeline; the first opening and closing assembly comprises a transmission part and a sliding block, the sliding block is movably arranged on the second pipeline, the air bag is connected with the transmission part, and the transmission part is in transmission connection with the sliding block; wherein the transmission part is used for driving the sliding block to move relative to the second pipeline, so that the sliding block has a first state that the sliding block is opened relative to the pressure relief hole and a second state that the sliding block is closed relative to the pressure relief hole, in the first state, high-pressure gas of the exhaust pipe is discharged into the containing cavity from the pressure relief hole of the second pipeline, pressure overload of the compressor can be avoided, and a unit does not need to be started and stopped frequently.

Description

Technical Field

[0001] This application relates to the technical field of compressors, and particularly to a compressor exhaust device and a heat pump system. Background Art

[0002] With the continuous improvement of people's living standards, people have put forward higher and higher requirements for the living environment. In order to maintain a comfortable environmental temperature, a heat pump system has become an essential device in people's lives. Generally, a heat pump system includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, an expansion valve, and a circulation loop for connecting the compressor and the heat exchanger. The refrigerant in the heat pump system continuously exchanges heat with the indoor unit through the circulation loop, so as to achieve the effect of changing the room temperature.

[0003] During the operation of the existing heat pump system, when the exhaust pressure of the compressor is too high, the start and stop of the compressor are usually controlled by a pressure switch. However, in extreme working conditions or under unreasonable control, this method may cause the unit to start and stop frequently, which not only increases energy consumption, but also may cause premature damage to the compressor and other components, affecting the overall efficiency and service life of the heat pump system. Summary of the Utility Model

[0004] This application provides a compressor exhaust device and a heat pump system to solve the technical problem that the existing heat pump system uses a pressure switch for control, which easily causes the unit to start and stop frequently, not only increasing energy consumption, but also possibly causing premature damage to the compressor and other components, affecting the overall efficiency and service life of the heat pump system.

[0005] In a first aspect, this application provides a compressor exhaust device, which is arranged on a heat pump system. The heat pump system includes a compressor and an exhaust pipe. The compressor exhaust device includes:

[0006] A housing having an accommodation cavity;

[0007] An airbag arranged in the accommodation cavity;

[0008] A first pipeline, whose first end is communicated with the exhaust pipe, and the second end of the first pipeline penetrates the housing and is communicated with the airbag. A valve is arranged on the first pipeline, and the valve is configured to be in an open state when the exhaust pressure of the compressor is greater than a preset pressure;

[0009] A second pipeline, one end of which is communicated with the exhaust pipe, and a pressure relief hole communicated with the accommodation cavity is arranged on the second pipeline; and

[0010] A first opening and closing component, including a transmission member and a slider. The slider is movably arranged on the second pipeline. The airbag is connected to the transmission member, and the transmission member is in transmission connection with the slider;

[0011] Among them, the transmission member is used to drive the slider to reciprocate relative to the second pipeline, so that the slider has a first state in which it is opened relative to the pressure relief hole or a second state in which it is closed relative to the pressure relief hole. In the first state, the high-pressure gas in the exhaust pipe is discharged from the pressure relief hole of the second pipeline into the accommodating cavity.

[0012] In a possible implementation manner, the transmission member includes a pressure rod and a connecting rod. The first end of the pressure rod is connected to the airbag, and the second end of the pressure rod is hingedly connected to the end of the second pipeline far from the exhaust pipe.

[0013] The first end of the connecting rod is hingedly connected to the middle of the pressure rod, and the second end of the connecting rod is hingedly connected to the slider.

[0014] In a possible implementation manner, in the second state, there is a first included angle between the pressure rod and the second pipeline, and the first included angle is less than 90°.

[0015] In a possible implementation manner, a plurality of pressure rods are provided, and the plurality of pressure rods are distributed in a ring around the second pipeline. A plurality of connecting rods are provided corresponding to the pressure rods one by one.

[0016] In a possible implementation manner, the airbag includes a first plane, a second plane and a curved surface. The second plane is arranged around the first plane and is connected to the edge of the first plane. The curved surface is arranged far from the transmission member and is connected to the edge of the second plane.

[0017] The transmission member includes a fixing plate. The first side of the fixing plate is connected to the first plane, and the second side of the fixing plate is connected to the end of the second pipeline far from the exhaust pipe.

[0018] In a possible implementation manner, in the second state, there is a second included angle between the first plane and the second plane, and the second included angle is greater than 90°.

[0019] In a possible implementation manner, the heat pump system includes a liquid storage tank. The compressor exhaust device includes a third pipeline. The first end of the third pipeline is communicated with the accommodating cavity, and the second end of the third pipeline is communicated with the liquid storage tank.

[0020] In a possible implementation manner, a pressure sensor is arranged on the exhaust pipe. The pressure sensor is used to monitor the exhaust pressure of the compressor, and the pressure sensor is electrically connected to the valve.

[0021] In a possible implementation manner, a second opening and closing component is arranged at the pressure relief hole of the second pipeline. The second opening and closing component is used to control the opening and closing of the pressure relief hole when the first opening and closing component is in the first state; when the exhaust pressure of the compressor is greater than the preset pressure, the second opening and closing component controls the pressure relief hole to open.

[0022] In a possible implementation, the second opening and closing component includes a spring piece, which covers the pressure relief hole. The spring piece has a fixed end and a cantilever end arranged oppositely. The fixed end of the spring piece is connected to the second pipeline, and the cantilever end of the spring piece is movably abutted against the second pipeline;

[0023] When the slider is in the first state and the exhaust pressure of the compressor is greater than the preset pressure, the cantilever end of the spring piece can rotate away from the second pipeline.

[0024] In a possible implementation, a sealing gasket is arranged on the side of the spring piece facing the pressure relief hole, and the sealing gasket is arranged around the edge of the pressure relief hole.

[0025] In a second aspect, the present application provides a heat pump system, including:

[0026] A compressor;

[0027] An exhaust pipe, connected to the exhaust port of the compressor; and

[0028] The compressor exhaust device as described above, and the compressor exhaust device is arranged on the exhaust pipe.

[0029] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0030] In the compressor exhaust device and heat pump system provided by the embodiments of the present application, initially, there is a certain amount of high-pressure gas stored in the airbag, resulting in a first pressure. The accommodating cavity of the housing also stores a certain amount of high-pressure gas, resulting in a second pressure. The first pressure and the second pressure are equal, causing the airbag to be in a standby state, that is, the airbag remains relatively stationary under the combined action of the first pressure and the second pressure, without expanding or contracting. The exhaust pressure of the compressor refers to the pressure of the refrigerant gas (possibly mixed with a small amount of lubricating oil) in the exhaust pipe at the outlet of the compressor. During normal operation, the exhaust pressure of the compressor is maintained within the set working pressure range. The first pressure of the high-pressure gas in the airbag is equal to or slightly greater than the exhaust pressure of the compressor, and the valve remains in a normally closed state. At this time, the airbag is in a standby state, and the high-pressure gas output from the exhaust port of the compressor directly discharges through the exhaust pipe. When the exhaust pressure of the compressor is greater than the preset pressure, the control valve is in an open state. Part of the high-pressure gas at the exhaust port of the compressor bypasses through the first pipeline and enters the airbag. The airbag expands, causing the transmission member to drive the slider to move away from the airbag relative to the second pipeline under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole. The high-pressure gas in the compressor exhaust pipe quickly discharges from the pressure relief hole of the second pipeline. The high-pressure gas discharges from the pressure relief hole into the accommodating cavity of the housing, and part of the pressure is released, which can prevent the compressor from being overloaded. As the pressure in the exhaust pipe continuously decreases, part of the high-pressure gas in the airbag enters the second pipeline through the exhaust pipe from the first pipeline, and then discharges from the pressure relief hole of the second pipeline. During this process, the airbag contracts to the initial state, the airbag drives the transmission member to act, the transmission member drives the slider to move closer to the airbag relative to the second pipeline, switches from the first state to the second state, and closes the pressure relief hole. At this time, the exhaust pressure of the compressor is less than the preset pressure, and the first pressure in the airbag is also less than the preset pressure. The control valve is in a closed state. During the pressure relief process, the compressor does not need to stop, and the unit does not need to be frequently started and stopped, which not only reduces energy consumption but also improves the overall efficiency and service life of the heat pump system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments in line with the present invention, and are used together with the specification to explain the principles of the present invention.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated. The drawings in the figures do not constitute a scale limitation.

[0034] Figure 1 The structural schematic diagram of a compressor exhaust device provided by one embodiment of the present application;

[0035] Figure 2 The structural schematic diagram of a compressor exhaust device provided by another embodiment of the present application;

[0036] Figure 3 The partial structural schematic diagram of the compressor exhaust device provided by another embodiment of the present application, where the arrow shows the flow direction of high-pressure gas and the slider is in the first state;

[0037] Figure 4 is Figure 3 The structural schematic diagram showing the slider in the second state in the compressor exhaust device;

[0038] Figure 5 The structural schematic diagram of a heat pump system provided by an embodiment of the present application.

[0039] Explanation of reference numerals:

[0040] 100, heat pump system;

[0041] 1, compressor exhaust device; 11, housing; 111, accommodation cavity; 12, airbag; 121, first plane; 122, second plane; 123, curved surface; 13, first pipeline; 131, valve; 14, second pipeline; 141, pressure relief hole; 15, first opening and closing assembly; 151, transmission member; 1511, pressure rod; 1512, connecting rod; 1513, fixing plate; 152, slider; 16, third pipeline; 17, second opening and closing assembly; 171, spring piece; 1711, fixed end; 1712, cantilever end; 172, gasket;

[0042] 2, compressor; 3, exhaust pipe; 4, liquid storage tank; 5, pressure sensor; 6, first heat exchanger; 7, second heat exchanger; 8, throttling element; 9, gas-liquid separator. Detailed implementation manners

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0044] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0045] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or change in motion state, then these directional indications will also change accordingly. For example, an element described as "below" or "beneath" another element or feature will then be oriented as "above" or "over" the other element or feature. Therefore, the exemplary term "below" can include both the upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0046] In the prior art, an air compressor system generally consists of a compressor, an air tank, pipelines, and various valves. The task of the compressor is to compress the air working medium to increase its pressure. The task of the air tank is to store the compressed high-pressure gas. The function of the pipelines and valves is to transport the high-pressure gas discharged from the compressor to the air tank and prevent the gas in the tank from flowing back to the compressor. The valve that prevents the high-pressure gas in the tank from flowing back to the compressor is called a check valve, and a pipeline is used to connect between the check valve and the exhaust cavity of the compressor (commonly known as the exhaust pipe). When the gas pressure in the tank reaches a certain preset value, the pressure switch in the valve will feedback a signal and accordingly stop the compressor. When a part of the gas in the tank is consumed, the air pressure in the tank will decrease accordingly. If the pressure in the tank drops to another preset value, the pressure switch will send a signal to restart the compressor to supplement new high-pressure gas to the air tank. Thus, the compressor starts and stops repeatedly according to the above procedure. Therefore, under extreme working conditions or unreasonable control, the above method may cause the unit to start and stop frequently, which not only increases energy consumption, but also may cause premature damage to the compressor and other components, affecting the overall efficiency and service life of the heat pump system.

[0047] To solve the technical problem that the existing heat pump system using a pressure switch for control is prone to frequent start and stop of the unit, which not only increases energy consumption, but also may cause premature damage to the compressor and other components, affecting the overall efficiency and service life of the heat pump system, this application provides a compressor exhaust device and a heat pump system, which can avoid compressor pressure overload. During the pressure relief process, the compressor does not need to stop, and the unit does not need to start and stop frequently, which not only reduces energy consumption, but also improves the overall efficiency and service life of the heat pump system.

[0048] As Figure 1 shown, this application provides a compressor exhaust device 1. The compressor exhaust device 1 is arranged on a heat pump system 100. The heat pump system 100 includes a compressor 2 ( Figure 5As shown in [figure], and an exhaust pipe 3, the compressor exhaust device 1 includes a housing 11, an airbag 12, a first pipeline 13, a second pipeline 14, and a first opening and closing assembly 15. The housing 11 has a receiving cavity 111; the airbag 12 is disposed in the receiving cavity 111; a first end of the first pipeline 13 communicates with the exhaust pipe 3, a second end of the first pipeline 13 penetrates the housing 11 and communicates with the airbag 12, and a valve 131 is disposed on the first pipeline 13. The valve 131 is configured to be in an open state when the exhaust pressure of the compressor 2 is greater than a preset pressure; one end of the second pipeline 14 communicates with the exhaust pipe 3, and a pressure relief hole 141 communicating with the receiving cavity 111 is disposed on the second pipeline 14; the first opening and closing assembly 15 includes a transmission member 151 and a slider 152. The slider 152 is movably disposed on the second pipeline 14. The airbag 12 is connected to the transmission member 151, and the transmission member 151 is in transmission connection with the slider 152; wherein, the transmission member 151 is used to drive the slider 152 to reciprocate relative to the second pipeline 14, so that the slider 152 has a first state of being open relative to the pressure relief hole 141, or a second state of being closed relative to the pressure relief hole 141. In the first state, the high-pressure gas in the exhaust pipe 3 is discharged into the receiving cavity 111 from the pressure relief hole 141 of the second pipeline 14.

[0049] Initially, the airbag 12 stores a certain amount of high-pressure gas and has a first pressure P1. The receiving cavity 111 of the housing 11 also stores a certain amount of high-pressure gas and has a second pressure P2. The first pressure and the second pressure are equal, so that the airbag 12 is in a standby state, that is, the airbag 12 remains relatively stationary under the combined action of the first pressure and the second pressure, without expanding or contracting. The exhaust pressure of the compressor 2 refers to the pressure of the refrigerant gas (possibly mixed with a small amount of lubricating oil) in the exhaust pipe 3 at the outlet of the compressor 2.

[0050] During normal operation, the exhaust pressure P0 of the compressor 2 is maintained within the set working pressure range. For example, the set working pressure range of the compressor is [Pm1, Pm2], and at this time, Pm1 ≤ P0 ≤ Pm2. The first pressure of the high-pressure gas in the airbag 12 is equal to the current exhaust pressure P0 of the compressor 2, or slightly greater than the exhaust pressure of the compressor 2. The valve 131 remains normally closed, and at this time, the airbag 12 is in a standby state. The high-pressure gas output from the exhaust port of the compressor 2 directly discharges through the exhaust pipe 3. When the exhaust pressure P0 of the compressor 2 is greater than the preset pressure Pm2, the control valve 131 is in an open state. Part of the high-pressure gas at the exhaust port of the compressor 2 bypasses through the first pipeline 13 and enters the airbag 12. The airbag 12 expands, causing the transmission member 151 to drive the slider 152 to move away from the airbag 12 relative to the second pipeline 14 under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and part of the pressure is released, which can prevent the compressor 2 from being overloaded. During the pressure relief process, the compressor 2 does not need to stop, and the unit does not need to start and stop frequently, which not only reduces energy consumption but also improves the overall efficiency and service life of the heat pump system 100.

[0051] As the pressure in the exhaust pipe 3 continuously decreases, part of the high-pressure gas in the airbag 12 enters the second pipeline 14 through the first pipeline 13 and the exhaust pipe 3, and then discharges from the pressure relief hole 141 of the second pipeline 14. During this process, the airbag 12 shrinks to its initial state. The airbag 12 drives the transmission member 151 to act, and the transmission member 151 drives the slider 152 to move closer to the airbag 12 relative to the second pipeline 14, switching from the first state to the second state, and closing the pressure relief hole 141. At this time, the exhaust pressure of the compressor 2 is less than the preset pressure, that is, P0 < Pm2, and the first pressure in the airbag 12 is also less than the preset pressure, P1 < Pm2. The control valve 131 is in a closed state.

[0052] It should be noted that the airbag 12 is made of high-strength pressure-resistant material and can remain stable under high-pressure conditions. The outer layer of the airbag 12 uses reinforced fiber material, and the inner layer is high-strength rubber material to ensure that it will not burst under high-pressure environment. The design capacity of the airbag 12 is optimized so that it can effectively store high-pressure gas under various working conditions and maintain the stable operation of the system. The shape of the airbag 12 can be set as a cylindrical shape, an elliptical cylindrical shape or a hemispherical shape so that it can effectively store high-pressure gas under various working conditions and maintain the stable operation of the system.

[0053] In addition, the valve 131 can be selected as a solenoid valve with high sensitivity and fast response to accurately respond to the change of the exhaust pressure of the compressor 2. The opening and closing times of the solenoid valve can be programmed and adjusted according to the system needs to ensure the best performance and response speed.

[0054] In some embodiments, as Figure 2 shown, the transmission member 151 includes a pressure rod 1511 and a connecting rod 1512. The first end of the pressure rod 1511 is connected to the airbag 12, and the second end of the pressure rod 1511 is hingedly connected to the end of the second pipeline 14 away from the exhaust pipe 3; the first end of the connecting rod 1512 is hingedly connected to the middle of the pressure rod 1511, and the second end of the connecting rod 1512 is hingedly connected to the slider 152.

[0055] It should be noted that the first end of the connecting rod 1512 being hingedly connected to the middle of the pressure rod 1511 means that the first end of the connecting rod 1512 is hingedly connected to a part away from the second end of the pressure rod 1511 itself. As long as the first end of the connecting rod 1512 is not hingedly connected to the second end of the pressure rod 1511, the pressure rod 1511 can drive the connecting rod 1512 to move. It can be understood that when the exhaust pressure of the compressor 2 is greater than the preset pressure, the valve 131 is in the open state. Part of the high-pressure gas at the exhaust port of the compressor 2 enters the airbag 12 from the first pipeline 13, and the airbag 12 expands and deforms, so that the first end of the pressure rod 1511 can rotate close to the second pipeline 14. Under the linkage action of the pressure rod 1511 and the connecting rod 1512, the connecting rod 1512 drives the slider 152 to move away from the airbag 12, and the slider 152 reaches the first state, opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 can quickly enter the accommodation cavity 111 of the housing 11 from the pressure relief hole 141 of the second pipeline 14, thereby realizing rapid pressure relief.

[0056] As the pressure in the exhaust pipe 3 continuously decreases, part of the high-pressure gas in the airbag 12 enters the second pipeline 14 from the first pipeline 13 through the exhaust pipe 3 and then is discharged from the pressure relief hole 141 of the second pipeline 14. During this process, the airbag 12 shrinks to the initial state, so that the first end of the pressure rod 1511 can rotate away from the second pipeline 14. Under the linkage action of the pressure rod 1511 and the connecting rod 1512, the connecting rod 1512 drives the slider 152 to move closer to the airbag 12 relative to the second pipeline 14, and the slider 152 switches from the first state to the second state, closing the pressure relief hole 141. At this time, the exhaust pressure of the compressor 2 is less than the preset pressure, and the first pressure in the airbag 12 is also less than the preset pressure, and the control valve 131 is in the closed state. It can avoid overloading of the compressor 2. During the above pressure relief process, the compressor 2 does not need to stop, and the unit does not need to be frequently started and stopped, which can reduce energy consumption and improve the overall efficiency and service life of the heat pump system 100 at the same time.

[0057] The design of the above-mentioned transmission member 151 ensures accurate response and action under different pressure conditions, and can ensure the safe operation of the heat pump system 100.

[0058] In some embodiments, in the second state, there is a first included angle α1 between the pressure lever 1511 and the second pipeline 14, and the first included angle α1 is less than 90°. If the first included angle α1 between the pressure lever 1511 and the second pipeline 14 is set to 90°, then the acting force of the airbag 12 on the pressure lever 1511 after expansion is small, which may cause the pressure lever 1511 to be in a dead point position, resulting in the abnormal operation of the first opening and closing assembly 15. Setting the first included angle α1 between the pressure lever 1511 and the second pipeline 14 to be less than 90° can avoid the pressure lever 1511 being in a dead point position, so as to ensure that the transmission member 151 can accurately respond and act when the exhaust pressure is greater than the preset pressure, and further ensure the normal opening and closing of the pressure relief hole 141, and further ensure the safety of the unit operation.

[0059] Optionally, in the second state, the first included angle α1 between the pressure lever 1511 and the second pipeline 14 can be set to 80°, 75°, 72°, 70°, 68°, etc.

[0060] In some embodiments, a plurality of pressure levers 1511 are provided, and the plurality of pressure levers 1511 are evenly distributed around the second pipeline 14 in a ring shape, and a plurality of connecting rods 1512 are provided corresponding to the pressure levers 1511 one by one.

[0061] When the exhaust pressure of the compressor 2 is greater than the preset pressure, the valve 131 is in an open state, and a part of the high-pressure gas at the exhaust port of the compressor 2 enters the airbag 12 from the first pipeline 13. The airbag 12 expands and deforms, so that the first ends of the plurality of pressure levers 1511 can rotate close to the second pipeline 14 at the same time. Under the linkage action of the pressure levers 1511 and the connecting rods 1512, the plurality of connecting rods 1512 drive the slider 152 to move away from the airbag 12, and the slider 152 reaches the first state, opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 can quickly be discharged into the accommodating cavity 111 of the housing 11 from the pressure relief hole 141 of the second pipeline 14, so as to achieve rapid pressure relief and prevent the compressor 2 from operating overpressure. The plurality of pressure levers 1511 are evenly distributed around the second pipeline 14 in a ring shape. Similarly, the connecting rods 1512 are evenly distributed around the slider 152 in a ring shape. By providing a plurality of pressure levers 1511 and a plurality of connecting rods 1512, the uniformity of the sliding of the slider 152 is improved, and thus the response stability of the first opening and closing assembly 15 is improved.

[0062] In one example, two pressure levers 1511 are provided, and the two pressure levers 1511 are symmetrically arranged on both sides of the second pipeline 14. Two connecting rods 1512 are provided corresponding to the pressure levers 1511 one by one, and the two connecting rods 1512 are symmetrically arranged on both sides of the slider 152.

[0063] In one example, four pressure rods 1511 are provided. The four pressure rods 1511 are evenly distributed in a ring around the circumference of the second pipeline 14. Four connecting rods 1512 are provided corresponding to the four pressure rods 1511 one by one. The four connecting rods 1512 are evenly distributed in a ring around the circumference of the slider 152.

[0064] In some embodiments, the airbag 12 includes a first plane 121, a second plane 122, and a curved surface 123. The first plane 121 is circular. The second plane 122 is arranged around the first plane 121, and the second plane 122 is connected to the edge of the first plane 121. The curved surface 123 is arranged away from the transmission member 151, and the curved surface 123 is connected to the edge of the second plane 122. The transmission member 151 includes a fixing plate 1513. The first side of the fixing plate 1513 is connected to the first plane 121 of the airbag 12, and the second side of the fixing plate 1513 is connected to one end of the second pipeline 14 away from the exhaust pipe 3.

[0065] It should be noted that the first side and the second side of the fixing plate 1513 can be arranged adjacent to each other or opposite to each other, and the present application does not limit this here. The first plane 121 is circular, the second plane 122 is circular ring-shaped, the second plane 122 is arranged around the first plane 121, and the second plane 122 is connected to the edge of the first plane 121. The first plane 121, the second plane 122, and the curved surface 123 are integrally arranged, so that the airbag 12 is integrally in a cylindrical shape, an elliptical cylindrical shape, or a hemispherical shape. Through the above arrangement, the airbag 12 can expand evenly in all directions or contract towards the center. Connecting the fixing plate 1513 to the first plane 121 of the airbag 12 can limit the expansion or contraction direction of the airbag 12, so that the curved surface 123 and the second plane 122 of the airbag 12 expand or contract evenly in all directions with the fixing plate 1513 as the center. When the airbag 12 expands evenly in all directions with the fixing plate 1513 as the center, the second plane 122 of the airbag 12 drives the transmission member 151 to drive the slider 152 to move away from the airbag 12 relative to the second pipeline 14 under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and part of the pressure is released, which can avoid the pressure overload of the compressor 2.

[0066] This embodiment can be combined with the foregoing embodiments to obtain more embodiments. In one example, the first end of the pressure rod 1511 is connected to the second plane 122 of the airbag 12. Of course, in order to improve the motion smoothness and response speed, the pressure rod 1511 can be made to contact the second plane 122 of the airbag 12 as much as possible to increase the contact area between the airbag 12 and the pressure rod 1511. The second end of the pressure rod 1511 is hingedly connected to the end of the second pipeline 14 away from the exhaust pipe 3; the first end of the connecting rod 1512 is hingedly connected to the middle of the pressure rod 1511, and the second end of the connecting rod 1512 is hingedly connected to the slider 152.

[0067] When the exhaust pressure of the compressor 2 is greater than the preset pressure, the valve 131 is in the open state. Part of the high-pressure gas at the exhaust port of the compressor 2 enters the airbag 12 through the first pipeline 13. The second plane 122 and the curved surface 123 of the airbag 12 expand uniformly in all directions. The second plane 122 of the airbag 12 exerts a downward pressure on the pressure rod 1511, so that the first end of the pressure rod 1511 can rotate close to the second pipeline 14. Under the linkage action of the pressure rod 1511 and the connecting rod 1512, the connecting rod 1512 drives the slider 152 to move away from the airbag 12. The slider 152 reaches the first state, and the pressure relief hole 141 is opened. The high-pressure gas in the exhaust pipe 3 of the compressor 2 can quickly enter the accommodating cavity 111 of the housing 11 through the pressure relief hole 141 of the second pipeline 14, thereby realizing rapid pressure relief. As the pressure in the exhaust pipe 3 continuously decreases, part of the high-pressure gas in the airbag 12 enters the second pipeline 14 through the exhaust pipe 3 via the first pipeline 13 and then is discharged from the pressure relief hole 141 of the second pipeline 14. During this process, the second plane 122 and the curved surface 123 of the airbag 12 contract to the initial state. The second plane 122 of the airbag 12 exerts an upward pulling force on the pressure rod 1511, so that the first end of the pressure rod 1511 can rotate away from the second pipeline 14. Under the linkage action of the pressure rod 1511 and the connecting rod 1512, the connecting rod 1512 drives the slider 152 to move closer to the airbag 12 relative to the second pipeline 14. The slider 152 switches from the first state to the second state, and the pressure relief hole 141 is closed. At this time, the exhaust pressure of the compressor 2 is less than the preset pressure, and the first pressure in the airbag 12 is also less than the preset pressure, and the control valve 131 is in the closed state.

[0068] Optionally, in the second state, there is a second included angle α2 between the first plane 121 and the second plane 122, and the second included angle α2 is greater than 90°. If the second included angle α2 between the first plane 121 and the second plane 122 is set to 90°, then after the airbag 12 expands, it cannot drive the first end of the pressure lever 1511 to rotate close to the second pipeline 14, which will cause the pressure lever 1511 to be in a dead point position, resulting in the abnormal operation of the first opening and closing assembly 15. Setting the second included angle α2 between the pressure lever 1511 and the second pipeline 14 to be greater than 90° can avoid the pressure lever 1511 being in a dead point position, thereby ensuring that the transmission member 151 can accurately respond and act when the exhaust pressure is greater than the preset pressure, and further ensuring the normal opening and closing of the pressure relief hole 141, and further ensuring the safety of the unit operation.

[0069] Optionally, in the second state, the first included angle α1 between the pressure lever 1511 and the second pipeline 14 can be set to 80°, 75°, 72°, 70°, 68°, etc.

[0070] In some embodiments, as Figure 2 shown, the heat pump system 100 includes a liquid storage tank 4 ( Figure 5 shown in), the compressor exhaust device 1 includes a third pipeline 16, the first end of the third pipeline 16 is communicated with the accommodating cavity 111, and the second end of the third pipeline 16 is communicated with the liquid storage tank 4.

[0071] The liquid storage tank 4 is used to store compressed high-pressure gas. When the exhaust pressure of the compressor 2 is greater than the preset pressure, the control valve 131 is in an open state. Part of the high-pressure gas at the exhaust port of the compressor 2 bypasses through the first pipeline 13 and enters the airbag 12. The airbag 12 expands, causing the transmission member 151 to drive the slider 152 to move away from the airbag 12 relative to the second pipeline 14 under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and then discharges from the accommodation cavity 111 into the liquid storage tank 4 through the third pipeline 16. Part of the pressure is released, which can avoid the pressure overload of the compressor 2. During the pressure relief process, the compressor 2 does not need to stop, and the unit does not need to start and stop frequently, which not only reduces energy consumption, but also improves the overall efficiency and service life of the heat pump system 100. As the pressure in the exhaust pipe 3 continuously decreases, part of the high-pressure gas in the airbag 12 enters the second pipeline 14 from the first pipeline 13 through the exhaust pipe 3, and then discharges from the pressure relief hole 141 of the second pipeline 14. During this process, the airbag 12 shrinks to its initial state, the airbag 12 drives the transmission member 151 to act, and the transmission member 151 drives the slider 152 to move closer to the airbag 12 relative to the second pipeline 14, switching from the first state to the second state, closing the pressure relief hole 141. At this time, the exhaust pressure of the compressor 2 is less than the preset pressure, and the first pressure in the airbag 12 is also less than the preset pressure, and the control valve 131 is in a closed state.

[0072] In some embodiments, a pressure sensor 5 is provided on the exhaust pipe 3. The pressure sensor 5 is used to monitor the exhaust pressure of the compressor 2, and the pressure sensor 5 is electrically connected to the valve 131.

[0073] The pressure sensor 5 monitors the exhaust pressure of the compressor 2 in real time. If the exhaust pressure of the compressor 2 is greater than the preset pressure, then the pressure sensor 5 controls the valve 131 to switch from the normally closed state to the open state. Part of the high-pressure gas at the exhaust port of the compressor 2 bypasses through the first pipeline 13 and enters the airbag 12. The airbag 12 expands, causing the transmission member 151 to drive the slider 152 to move away from the airbag 12 relative to the second pipeline 14 under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and part of the pressure is released, which can avoid the pressure overload of the compressor 2.

[0074] Since the first opening and closing component 15 is a pure mechanical structure, when the unit shuts down or other failures occur, the first pressure of the airbag 12 may be less than the safety pressure, resulting in a sharp contraction of the airbag 12. Under the action of the airbag 12, the transmission member 151 drives the slider 152 to move too close to the airbag 12 (move upward), the pressure relief hole 141 is opened, and the slider 152 cannot be reset, that is, the slider 152 cannot be restored from the first state where the pressure relief hole 141 is opened to the second state where the pressure relief hole 141 is closed. Therefore, the present application further provides a second opening and closing component 17 to control the opening and closing of the pressure relief hole 141 when the first opening and closing component 15 fails.

[0075] In some embodiments, as Figure 3 and Figure 4 shown, a second opening and closing component 17 is provided at the pressure relief hole 141 of the second pipeline 14. The second opening and closing component 17 is used to control the opening and closing of the pressure relief hole 141 when the first opening and closing component 15 is in the first state. When the exhaust pressure of the compressor 2 is greater than the preset pressure, the second opening and closing component 17 controls the pressure relief hole 141 to open.

[0076] It can be understood that in the case where the first opening and closing component 15 fails and cannot be reset, if the exhaust pressure of the compressor 2 is still greater than the preset pressure, at this time, the current pressure of the second pipeline 14 is greater than the second pressure of the accommodating cavity 111 of the housing 11. The second opening and closing component 17 controls the pressure relief hole 141 to open, and the high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodating cavity 111 of the housing 11, and part of the pressure is released, which can avoid overloading of the compressor 2 pressure. As the pressure in the exhaust pipe 3 continuously decreases, the exhaust pressure of the compressor 2 is less than the preset pressure. At this time, the current pressure of the second pipeline 14 is equal to the second pressure of the accommodating cavity 111 of the housing 11, and the second opening and closing component 17 controls the pressure relief hole 141 to close.

[0077] Of course, this embodiment can be combined with the foregoing embodiments to obtain more embodiments. In one example, the heat pump system 100 includes a liquid storage tank 4, and the compressor exhaust device 1 includes a third pipeline 16. The first end of the fifth pipeline is communicated with the accommodation cavity 111, and the second end of the third pipeline 16 is communicated with the liquid storage tank 4. In the case where the first opening and closing assembly 15 fails to reset, if the exhaust pressure of the compressor 2 is still greater than the preset pressure, at this time, the current pressure of the second pipeline 14 is greater than the second pressure of the accommodation cavity 111 of the housing 11, and the second opening and closing assembly 17 controls the pressure relief hole 141 to open. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges into the accommodation cavity 111 of the housing 11 from the pressure relief hole 141, and then discharges into the liquid storage tank 4 from the accommodation cavity 111 through the third pipeline 16, and part of the pressure is released, which can avoid the pressure overload of the compressor 2. As the pressure of the exhaust pipe 3 continuously decreases, the exhaust pressure of the compressor 2 is less than the preset pressure. At this time, the current pressure of the second pipeline 14 is equal to the second pressure of the accommodation cavity 111 of the housing 11, and the second opening and closing assembly 17 controls the pressure relief hole 141 to close. During the pressure relief process, the compressor 2 does not need to stop, and the unit does not need to start and stop frequently, which not only reduces energy consumption, but also improves the overall efficiency and service life of the heat pump system 100.

[0078] In some embodiments, the second opening and closing assembly 17 includes a spring piece 171. The spring piece 171 covers the pressure relief hole 141. The spring piece 171 has a fixed end 1711 and a cantilever end 1712 which are oppositely arranged. The fixed end 1711 of the spring piece 171 is connected to the second pipeline 14, and the cantilever end 1712 of the spring piece 171 is movably abutted against the second pipeline 14. When the slider 152 is in the first state and the exhaust pressure of the compressor 2 is greater than the preset pressure, the cantilever end 1712 of the spring piece 171 can rotate away from the second pipeline 14.

[0079] In the case where the slider 152 fails to reset, if the exhaust pressure of the compressor 2 is still greater than the preset pressure, at this time, the current pressure of the second pipeline 14 is greater than the second pressure of the accommodation cavity 111 of the housing 11. The high-pressure gas in the second pipeline 14 exerts a force on the spring piece 171, and the cantilever end 1712 of the spring piece 171 moves away from the second pipeline 14, that is, the high-pressure gas in the second pipeline 14 pushes the spring piece 171 open, opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and then discharges into the liquid storage tank 4 through the fifth pipeline from the accommodation cavity 111. Part of the pressure is released, which can avoid the pressure overload of the compressor 2. As the pressure of the exhaust pipe 3 continuously decreases, the exhaust pressure of the compressor 2 is less than the preset pressure. At this time, the current pressure of the second pipeline 14 is equal to the second pressure of the accommodation cavity 111 of the housing 11, and the cantilever end 1712 of the spring piece 171 returns to the state of being closely attached to the second pipeline 14 under the action of its own elastic force, thereby closing the pressure relief hole 141. During the pressure relief process, the compressor 2 does not need to stop, and the unit does not need to start and stop frequently, which not only reduces energy consumption, but also improves the overall efficiency and service life of the heat pump system 100.

[0080] It should be noted that the thickness of the spring piece 171 is relatively thin. When the spring piece 171 is closely attached to the second pipeline 14, the slider 152 can pass through the spring piece 171 and the second pipeline 14 under the drive of the transmission part 151, that is, the spring piece 171 will not affect the normal movement of the slider 152.

[0081] Furthermore, a sealing gasket 172 is arranged on the side of the spring piece 171 facing the pressure relief hole 141, and the sealing gasket 172 is arranged around the edge of the pressure relief hole 141.

[0082] The sealing gasket 172 can be made of rubber material. When the spring piece 171 covers the pressure relief hole 141, the sealing gasket 172 closely adheres to the edge of the pressure relief hole 141, which can play a sealing role, thereby avoiding the leakage of the refrigerant from the second pipeline 14 during normal operation and affecting the performance of the unit.

[0083] As Figure 5 shown, the embodiment of the present application also provides a heat pump system 100, including a compressor 2, an exhaust pipe 3 and the compressor exhaust device 1 as described above; the exhaust pipe 3 is connected to the exhaust port of the compressor 2; the compressor exhaust device 1 is arranged on the exhaust pipe 3.

[0084] Initially, the airbag 12 stores a certain amount of high-pressure gas and has a first pressure. The accommodation cavity 111 of the housing 11 also stores a certain amount of high-pressure gas and has a second pressure. The first pressure and the second pressure are equal, causing the airbag 12 to be in a standby state, that is, the airbag 12 remains relatively stationary under the combined action of the first pressure and the second pressure without expanding or contracting. The exhaust pressure of the compressor 2 refers to the pressure of the refrigerant gas (possibly mixed with a small amount of lubricating oil) in the exhaust pipe 3 at the outlet of the compressor 2.

[0085] During normal operation, the exhaust pressure of the compressor 2 is maintained within the set working pressure range. The first pressure of the high-pressure gas in the airbag 12 is equal to or slightly greater than the exhaust pressure of the compressor 2. The valve 131 remains normally closed. At this time, the airbag 12 is in a standby state, and the high-pressure gas output from the exhaust port of the compressor 2 is directly discharged through the exhaust pipe 3. When the exhaust pressure of the compressor 2 is greater than the preset pressure, the control valve 131 is in an open state. Part of the high-pressure gas at the exhaust port of the compressor 2 bypasses through the first pipeline 13 and enters the airbag 12. The airbag 12 expands, causing the transmission member 151 to drive the slider 152 to move away from the airbag 12 relative to the second pipeline 14 under the pressure difference between the first pressure and the exhaust pressure, thereby opening the pressure relief hole 141. The high-pressure gas in the exhaust pipe 3 of the compressor 2 quickly discharges from the pressure relief hole 141 of the second pipeline 14. The high-pressure gas discharges from the pressure relief hole 141 into the accommodation cavity 111 of the housing 11, and part of the pressure is released, which can prevent the compressor 2 from being overloaded. During the pressure relief process, the compressor 2 does not need to stop, and the unit does not need to be frequently started and stopped, which not only reduces energy consumption but also improves the overall efficiency and service life of the heat pump system 100.

[0086] As the pressure in the exhaust pipe 3 continuously decreases, part of the high-pressure gas in the airbag 12 enters the second pipeline 14 through the first pipeline 13 and then discharges from the pressure relief hole 141 of the second pipeline 14. During this process, the airbag 12 contracts to its initial state. The airbag 12 drives the transmission member 151 to act, and the transmission member 151 drives the slider 152 to move closer to the airbag 12 relative to the second pipeline 14, switching from the first state to the second state and closing the pressure relief hole 141. At this time, the exhaust pressure of the compressor 2 is less than the preset pressure, and the first pressure in the airbag 12 is also less than the preset pressure. The control valve 131 is in a closed state.

[0087] The heat pump system 100 further includes a first heat exchanger 6 and a second heat exchanger 7. The refrigerant outlet of the first heat exchanger 6 is communicated with the refrigerant inlet of the second heat exchanger 7 through a fourth pipeline. The refrigerant inlet of the first heat exchanger 6 is connected to the exhaust port of the compressor 2 through a fifth pipeline. The refrigerant outlet of the second heat exchanger 7 is connected to the intake port of the compressor 2 through a sixth pipeline. Both the fifth pipeline and the sixth pipeline are connected to the exhaust pipe 3. The aforementioned liquid storage tank 4 is arranged on the fourth pipeline. A throttling element 8 is also arranged on the fourth pipeline. The throttling element 8 can adopt throttling devices such as an electronic expansion valve or a capillary tube. A four-way valve is arranged on the fifth pipeline and the sixth pipeline. The flow path of the four-way valve is controllably switched and connected between the compressor 2, the first heat exchanger 6 and the second heat exchanger 7 to realize the switching of the compressor 2 between the refrigeration mode and the heating mode.

[0088] The first heat exchanger 6 is usually arranged outdoors, and the second heat exchanger 7 is usually arranged indoors. The first heat exchanger 6 can adopt an existing finned heat exchanger. The specific structure and working principle of the finned heat exchanger can refer to the prior art and will not be elaborated here. The second heat exchanger 7 can adopt an existing plate heat exchanger. The specific structure and working principle of the plate heat exchanger can refer to the prior art and will not be elaborated here.

[0089] Specifically, in the refrigeration mode, the compressor 2 sucks in the refrigerant vapor with a lower pressure coming out of the second heat exchanger 7 (which is equivalent to an evaporator at this time), raises its pressure and then sends it into the first heat exchanger 6 (which is equivalent to a condenser in the refrigeration mode), where it condenses into a liquid with a higher pressure. After this part of the refrigerant liquid is throttled by the throttling element 8, it becomes a liquid with a lower pressure and then is sent into the second heat exchanger 7 (which is equivalent to an evaporator in the refrigeration mode), where it absorbs heat and evaporates into a vapor with a lower pressure and then is sent into the intake port of the compressor 2, thus completing the refrigeration cycle. The four-way valve switches its internal flow path. In the heating mode, the compressor 2 sucks in the low-temperature and low-pressure gas from the first heat exchanger 6 (which is equivalent to an evaporator in the heating mode), compresses and raises the pressure to a high-temperature and high-pressure liquid. The high-temperature and high-pressure liquid enters the second heat exchanger 7 (which is equivalent to a condenser in the heating mode), where the high-temperature and high-pressure refrigerant releases heat to the external medium and liquefies into a medium-temperature and high-pressure liquid, and then is sent into the intake port of the compressor 2, thus completing the heating cycle.

[0090] Of course, the heat pump system 100 can also have other operating conditions, such as the defrosting mode, etc., which will not be elaborated here.

[0091] Optionally, a gas-liquid separator 9 is also arranged on the sixth pipeline. In the refrigeration mode, the gas-liquid separator 9 can prevent the liquid refrigerant from entering the compressor 2 and causing liquid hammer phenomenon in the compressor 2, thereby increasing the service life of the compressor 2 and further improving the operating reliability of the heat pump system.

[0092] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an" and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing" and "having" are inclusive and thus specify the presence of stated features, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0093] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer or section discussed below may be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0094] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A compressor exhaust device, arranged on a heat pump system, wherein the heat pump system comprises a compressor and an exhaust pipe, characterized in that: The compressor exhaust device comprises: A housing having a receiving cavity; An airbag is disposed in the accommodating cavity; a first pipeline, a first end of which is in communication with the exhaust pipe, a second end of which passes through the shell and is in communication with the airbag, a valve being provided on the first pipeline, the valve being configured to be in an open state when the exhaust pressure of the compressor is greater than a preset pressure; a second pipeline, one end of which is connected to the exhaust pipe, and a pressure relief hole connected to the accommodating chamber is provided on the second pipeline; and A first opening and closing assembly includes a transmission member and a slider, wherein the slider is movably disposed on the second pipeline, the airbag is connected to the transmission member, and the transmission member is in transmission connection with the slider; Wherein, the transmission member is used to drive the slider to move back and forth relative to the second pipeline, so that the slider has a first state of being open relative to the pressure relief hole, or a second state of being closed relative to the pressure relief hole. In the first state, the high-pressure gas of the exhaust pipe is discharged into the accommodating chamber from the pressure relief hole of the second pipeline.

2. The compressor exhaust device according to claim 1, characterized in that: The transmission member comprises a pressure rod and a connecting rod, wherein a first end of the pressure rod is connected to the airbag, and a second end of the pressure rod is hingedly connected to an end of the second pipeline away from the exhaust pipe; The first end of the connecting rod is hingedly connected to the middle part of the pressure rod, and the second end of the connecting rod is hingedly connected to the sliding block.

3. The compressor exhaust device according to claim 2, characterized in that: In the second state, a first angle is formed between the pressure rod and the second pipeline, and the first angle is smaller than 90°.

4. The compressor exhaust device according to claim 2, characterized in that: The pressure rods are provided in plurality, and the plurality of pressure rods are distributed in a ring shape around the second pipeline, and the connecting rods are provided in plurality corresponding to the pressure rods one by one.

5. The compressor exhaust device according to claim 1, characterized in that: The airbag includes a first plane, a second plane and a curved surface, the second plane is arranged around the first plane, and the second plane is connected to an edge of the first plane, the curved surface is arranged away from the transmission member, and the curved surface is connected to an edge of the second plane; The transmission member comprises a fixing plate, a first side of the fixing plate is connected to the first plane, and a second side of the fixing plate is connected to an end of the second pipeline away from the exhaust pipe.

6. The compressor exhaust device according to claim 5, characterized in that: In the second state, a second angle is formed between the first plane and the second plane, and the second angle is greater than 90°.

7. The compressor exhaust device according to claim 1, characterized in that: The heat pump system includes a liquid storage tank, the compressor exhaust device includes a third pipeline, a first end of the third pipeline is communicated with the accommodating chamber, and a second end of the third pipeline is communicated with the liquid storage tank.

8. The compressor exhaust device according to claim 1, characterized in that: The exhaust pipe is provided with a pressure sensor, which is used to monitor the exhaust pressure of the compressor, and the pressure sensor is electrically connected to the valve.

9. The compressor exhaust device according to claim 1, characterized in that: A second opening and closing component is provided at the pressure relief hole of the second pipeline, and the second opening and closing component is used to control the opening and closing of the pressure relief hole when the first opening and closing component is in the first state; when the exhaust pressure of the compressor is greater than the preset pressure, the second opening and closing component controls the pressure relief hole to open.

10. The compressor exhaust device according to claim 9, characterized in that: The second opening and closing assembly includes a spring sheet, the spring sheet covers the pressure relief hole, the spring sheet has a fixed end and a cantilever end that are arranged opposite to each other, the fixed end of the spring sheet is connected to the second pipeline, and the cantilever end of the spring sheet movably abuts against the second pipeline; When the slider is in the first state and the exhaust pressure of the compressor is greater than a preset pressure, the cantilever end of the spring sheet can rotate away from the second pipeline.

11. The compressor exhaust device according to claim 10, characterized in that: A sealing gasket is arranged on one side of the spring sheet facing the pressure relief hole, and the sealing gasket is arranged around the edge of the pressure relief hole.

12. A heat pump system, characterized in that: include: compressor; An exhaust pipe connected to the exhaust port of the compressor; as well as The compressor exhaust device according to any one of claims 1 to 11, wherein the compressor exhaust device is arranged on the exhaust pipe.

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