Exhaust structure and compressor

Abstract

The application provides an exhaust structure and a compressor, and relates to the technical field of compressors. The exhaust structure comprises a main body and a sliding block. The main body is installed on the compressor, and an exhaust cavity and a compression cavity are located on the two sides of the main body respectively. A sliding cavity is arranged in the main body, and the sliding block is slidably arranged in the sliding cavity. A pressure relief hole and a pilot hole are arranged on the main body; the pressure relief hole is in communication with the sliding cavity and the exhaust cavity. The pilot hole is in communication with the sliding cavity and the compression cavity. A first exhaust hole and a second exhaust hole are arranged on the main body; the first exhaust hole is in communication with the sliding cavity and the exhaust cavity; the second exhaust hole is in communication with the sliding cavity and the compression cavity; and an exhaust hole is arranged on the sliding block. The sliding block is abutted to the side of the sliding cavity close to the pressure relief hole, and the exhaust hole is in communication with the first exhaust hole and the second exhaust hole. The sliding block is abutted to the side of the sliding cavity close to the pilot hole, and the second exhaust hole is closed. The compressor provided by the application adopts the exhaust structure. The exhaust structure and the compressor provided by the application can improve the problem of easy damage.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to an exhaust structure and a compressor. Background Technology

[0002] A compressor compresses low-pressure gas into high-pressure gas, which is then discharged through the exhaust port. Because the gas pressure in the compression chamber is lower than the exhaust pressure during the intake process, a structure is needed to isolate the gas between the compression and exhaust chambers to prevent gas leakage. Air conditioning compressors typically use a reed valve structure.

[0003] When the exhaust valve closes after exhaust is complete, the pressure on the back of the valve plate is relatively large. Due to the huge pressure difference, the valve plate will be slammed heavily onto the valve seat, causing the compressor to vibrate and generate noise. At the same time, it will also reduce the service life of the valve plate and cause the exhaust valve plate to fail due to fatigue. Summary of the Invention

[0004] The problem solved by this invention is how to improve the technical problem of easy damage to the exhaust structure in the prior art.

[0005] To solve the above problems, the present invention provides an exhaust structure applied to a compressor, the exhaust structure comprising a main body and a slider;

[0006] The main body is used to install the compressor so that the exhaust chamber and the compression chamber of the compressor are located on opposite sides of the main body;

[0007] The main body has a sliding cavity inside, and the slider is slidably disposed inside the sliding cavity;

[0008] The main body is also provided with a pressure relief hole and a pilot hole; the pressure relief hole communicates with the sliding cavity and is used to communicate with the exhaust cavity; the pilot hole communicates with the sliding cavity and is used to communicate with the compression cavity; the pressure relief hole and the pilot hole are respectively located at both ends of the sliding cavity;

[0009] The main body is provided with a first exhaust hole and a second exhaust hole; one end of the first exhaust hole is connected to the sliding cavity, and the other end is used to connect to the exhaust cavity; one end of the second exhaust hole is connected to the sliding cavity, and the other end is used to connect to the compression cavity; the slider is provided with an air outlet.

[0010] The slider is used to be actuated by the gas in the pilot hole or the gas in the pressure relief hole when there is a pressure difference between the compression chamber and the exhaust chamber; to connect the first exhaust hole and the second exhaust hole through the air outlet when the slider is pressed against the side of the sliding chamber near the pressure relief hole; or to close the second exhaust hole when the slider is pressed against the side of the sliding chamber near the pilot hole.

[0011] The advantages of the exhaust structure provided by this invention compared to the prior art include:

[0012] When the pressure in the compression chamber is higher than the pressure in the exhaust chamber, the gas pressure in the pilot hole is greater than the gas pressure in the pressure relief hole. The gas in the pilot hole pushes the slider towards the pressure relief hole, causing the slider to press against the side of the sliding chamber near the pressure relief hole. This connects the first and second exhaust holes through the outlet, allowing gas from the compression chamber to be introduced into the exhaust chamber. When the pressure in the compression chamber is lower than the pressure in the exhaust chamber, the gas pressure in the pressure relief hole is greater than the gas pressure in the pilot hole. The gas in the pressure relief hole pushes the slider towards the pilot hole, causing the slider to press against the side of the sliding chamber near the pilot hole. This closes the second exhaust hole, preventing gas from flowing back into the compression chamber. Based on this, the low-pressure and high-pressure states generated during refrigerant compression in the compression chamber drive the slider to slide within the sliding chamber, thus opening or closing the second and first exhaust holes. This not only prevents gas backflow from the exhaust chamber but also avoids fatigue damage caused by slider deformation. This improves the technical problem of easy damage to the exhaust structure in existing technologies.

[0013] To ensure that the gas in the pilot hole and the pressure relief hole can push the slider to slide, optionally, a first groove is provided at one end of the slider; when the slider abuts against the side of the sliding cavity near the pressure relief hole, the first groove and the inner wall of the sliding cavity together form a first pressure cavity, and the pressure relief hole communicates with the first pressure cavity; and / or;

[0014] The other end of the slider is provided with a second groove; when the slider abuts against the side of the sliding cavity near the pilot hole, the second groove and the inner wall of the sliding cavity together form a second pressure cavity, and the pilot hole communicates with the second pressure cavity.

[0015] With the first and second grooves provided, the slider can form a first or second pressure chamber when it abuts against the two end walls of the sliding cavity. This allows the gas in the pilot hole or pressure relief hole to act on the end of the slider, thereby pushing the slider to slide in the sliding cavity.

[0016] Optionally, the pressure relief hole and the pilot hole are respectively opened on opposite sides of the main body; the opening direction of the pressure relief hole is at an angle to the moving direction of the slider; the opening direction of the pilot hole is at an angle to the moving direction of the slider.

[0017] To facilitate the assembly of the exhaust structure, the main body may optionally include a connecting part and a cover plate; the sliding cavity is formed on the connecting part; the second exhaust port and the pilot hole are both formed on the connecting part; the cover plate is detachably connected to the connecting part to close the sliding cavity; the first exhaust port and the pressure relief port are both formed on the cover plate.

[0018] Optionally, the connecting portion is further provided with a receiving cavity; the receiving cavity is located on the side of the connecting portion away from the second exhaust hole, and the receiving cavity communicates with the sliding cavity; the cover plate is disposed inside the receiving cavity to close the sliding cavity.

[0019] To reduce impact noise between the slider and the body, the exhaust structure may optionally include a damping pad disposed within the sliding cavity and located at at least one end of the slider.

[0020] When the slider slides under air pressure and impacts the inner walls at both ends of the sliding cavity, the damping pads provide cushioning, thereby reducing the noise generated by the impact between the slider and the main body. Simultaneously, the damping pads also reduce the impact on the slider, thus preventing damage to both the slider and the main body.

[0021] Optionally, the exhaust structure further includes a stop block disposed within the sliding cavity and located at at least one end of the slider; the damping pad is installed on the side of the stop block near the slider.

[0022] To facilitate exhaust, the first exhaust port and the second exhaust port may optionally be coaxially arranged.

[0023] To facilitate the correspondence between the vent and the second exhaust port and thus enable effective exhaust, the diameter of the vent may optionally be larger than the diameter of the second exhaust port.

[0024] A compressor includes an exhaust structure. The exhaust structure includes a body and a slider.

[0025] The main body is used to install the compressor so that the exhaust chamber and the compression chamber of the compressor are located on opposite sides of the main body;

[0026] The main body has a sliding cavity inside, and the slider is slidably disposed inside the sliding cavity;

[0027] The main body is also provided with a pressure relief hole and a pilot hole; the pressure relief hole communicates with the sliding cavity and is used to communicate with the exhaust cavity; the pilot hole communicates with the sliding cavity and is used to communicate with the compression cavity; the pressure relief hole and the pilot hole are respectively located at both ends of the sliding cavity;

[0028] The main body is provided with a first exhaust hole and a second exhaust hole; one end of the first exhaust hole is connected to the sliding cavity, and the other end is used to connect to the exhaust cavity; one end of the second exhaust hole is connected to the sliding cavity, and the other end is used to connect to the compression cavity; the slider is provided with an air outlet.

[0029] The slider is used to be actuated by the gas in the pilot hole or the gas in the pressure relief hole when there is a pressure difference between the compression chamber and the exhaust chamber; to connect the first exhaust hole and the second exhaust hole through the air outlet when the slider is pressed against the side of the sliding chamber near the pressure relief hole; or to close the second exhaust hole when the slider is pressed against the side of the sliding chamber near the pilot hole.

[0030] The compressor provided by the present invention adopts the above-described exhaust structure, and the beneficial effects of the compressor compared to the prior art are the same as the beneficial effects of the exhaust structure provided above compared to the prior art, which will not be repeated here. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the exploded structure of the exhaust structure provided in the embodiments of this application;

[0032] Figure 2 This is a cross-sectional view of the first state of the exhaust structure provided in the embodiments of this application.

[0033] Figure 3 This is a cross-sectional view of the second state of the exhaust structure provided in the embodiments of this application;

[0034] Figure 4 This is a cross-sectional view of the exhaust structure provided in the embodiments of this application;

[0035] Figure 5 for Figure 4 Enlarged structural diagram at point A;

[0036] Figure 6 This is a schematic diagram of the slider provided in the embodiments of this application;

[0037] Figure 7 This is a partial structural diagram of the exhaust structure provided in the embodiments of this application;

[0038] Figure 8 This is a schematic diagram of the cover plate provided in the embodiments of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10-Exhaust structure; 100-Main body; 101-Sliding cavity; 110-Connecting part; 111-Pilot hole; 112-Second exhaust hole; 113-Accommodation cavity; 120-Cover plate; 121-First exhaust hole; 122-Pressure relief hole; 200-Slider; 201-Air outlet; 210-First groove; 211-First pressure chamber; 220-Second groove; 221-Second pressure chamber; 300-Damping pad; 400-Stop block; 500-Shaft hole. Detailed Implementation

[0041] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] This application provides a compressor (not shown) used in an air conditioner. The compressor is installed in the refrigeration system of the air conditioner and is used to compress gaseous refrigerant into a high-temperature, high-pressure state, and then discharge the compressed refrigerant, allowing the refrigerant to circulate within the refrigeration system. Of course, during the circulation process within the refrigeration system, the refrigerant is drawn into the compressor and then compressed again. In other words, the compressor can draw in gaseous refrigerant into the refrigeration system, compress it, and then discharge the high-temperature, high-pressure refrigerant.

[0043] The compressor contains a compression chamber (not shown) for compressing gaseous refrigerant and an exhaust chamber (not shown) for discharging high-temperature, high-pressure refrigerant. Additionally, the compression chamber can draw in gaseous refrigerant from the refrigeration system. During the compression and intake cycles, the compression chamber operates in both high-pressure and low-pressure states. When the compression chamber is under high pressure, high-temperature, high-pressure refrigerant can be introduced into the exhaust chamber, i.e., the compression chamber is venting. After venting, the compression chamber needs to draw in refrigerant from the refrigeration system, at which point it switches to a low-pressure state. When the compression chamber is under low pressure, to prevent refrigerant in the exhaust chamber from flowing back into the compression chamber, the passage between the compression chamber and the exhaust chamber needs to be closed. Therefore, an exhaust structure 10 is provided between the compression chamber and the exhaust chamber. The exhaust structure 10 can open the compression chamber and the exhaust chamber when the pressure in the compression chamber is higher than the pressure in the exhaust chamber, so that the refrigerant in the compression chamber can be introduced into the exhaust chamber; the exhaust structure 10 can also close the passage between the compression chamber and the exhaust chamber when the pressure in the compression chamber is lower than the pressure in the exhaust chamber, so as to prevent the refrigerant in the exhaust chamber from flowing back into the compression chamber.

[0044] Please refer to Figure 1The exhaust structure 10 provided in this application can improve the technical problem of easy damage to exhaust structures in the prior art. In the embodiments of this application, the exhaust structure 10 includes a main body 100 and a slider 200. The main body 100 is used to install on a compressor, so that the exhaust chamber and the compression chamber of the compressor are located on opposite sides of the main body 100. A sliding cavity 101 is formed inside the main body 100, and the slider 200 is slidably disposed inside the sliding cavity 101. Please refer to the reference. Figure 2 and Figure 3 The main body 100 is also provided with a pressure relief hole 122 and a pilot hole 111. The pressure relief hole 122 communicates with the sliding cavity 101 and is used to communicate with the exhaust cavity. The pilot hole 111 communicates with the sliding cavity 101 and is used to communicate with the compression cavity. The pressure relief hole 122 and the pilot hole 111 are located at both ends of the sliding cavity 101, respectively. In other words, the pressure relief hole 122 and the pilot hole 111 can respectively introduce gas into the sliding cavity 101 from both ends. In addition, the main body 100 is provided with a first exhaust hole 121 and a second exhaust hole 112. One end of the first exhaust hole 121 communicates with the sliding cavity 101, and the other end is used to communicate with the exhaust cavity. One end of the second exhaust hole 112 communicates with the sliding cavity 101, and the other end is used to communicate with the compression cavity. The slider 200 is provided with an air outlet 201. The slider 200 is used to be actuated by the gas in the pilot hole 111 or the gas in the pressure relief hole 122 when there is a pressure difference between the compression chamber and the exhaust chamber; so that when the slider 200 is pressed against the side of the sliding chamber 101 near the pressure relief hole 122, it connects the first exhaust hole 121 and the second exhaust hole 112 through the exhaust hole 201; or so that when the slider 200 is pressed against the side of the sliding chamber 101 near the pilot hole 111, it closes the second exhaust hole 112.

[0045] It should be noted that "actuation" means to move the slider 200. In other words, "actuation" means that the gas in the pressure relief hole 122 can be introduced into the sliding cavity 101 to push the slider 200 to slide in the sliding cavity 101. Similarly, "actuation" can also mean that the gas in the pilot hole 111 can be introduced into the sliding cavity 101 to push the slider 200 to slide in the sliding cavity 101.

[0046] As described above, when the pressure in the compression chamber is higher than the pressure in the exhaust chamber, the gas pressure in the pilot hole 111 is greater than the gas pressure in the pressure relief hole 122. The gas in the pilot hole 111 pushes the slider 200 toward the pressure relief hole 122, so that the slider 200 abuts against the side of the sliding chamber 101 near the pressure relief hole 122. This allows the first exhaust hole 121 and the second exhaust hole 112 to connect through the air outlet 201, thus allowing the gas in the compression chamber to be introduced into the exhaust chamber. Figure 3 ,in, Figure 3The arrows indicate the direction of refrigerant flow during exhaust from the compression chamber. When the pressure in the compression chamber is lower than the pressure in the exhaust chamber, the gas pressure in the pressure relief hole 122 is greater than the gas pressure in the pilot hole 111. The gas in the pressure relief hole 122 pushes the slider 200 toward the pilot hole 111, causing the slider 200 to abut against the side of the sliding chamber 101 near the pilot hole 111. This closes the second exhaust hole 112, preventing gas from flowing back into the compression chamber. Figure 2 Based on this, the slider 200 is driven to slide in the sliding chamber 101 by the low-pressure and high-pressure states generated when the refrigerant is compressed in the compression chamber, thereby opening or closing the second exhaust port 112 and the first exhaust port 121. This not only prevents gas backflow in the exhaust chamber but also avoids fatigue damage caused by deformation of the slider 200. This improves the technical problem of easy damage to the exhaust structure 10 in the prior art.

[0047] It is worth noting that after the compression chamber finishes venting, it begins to draw in air. At this time, the compression chamber not only draws in refrigerant from the refrigeration system, but also draws in air from the pilot hole 111 due to the low pressure state of the compression chamber. Based on this, when the air pressure in the compression chamber is lower than the air pressure in the exhaust chamber, the gas in the pressure relief hole 122 can push the slider 200. At the same time, due to the negative pressure formed in the pilot hole 111, the slider 200 can also be promoted to slide towards the pilot hole 111. Based on this, it can be ensured that the slider 200 closes the second exhaust hole 112 when the compression chamber is in a low-pressure state.

[0048] Optionally, please refer to the following: Figure 2 , Figure 4 , Figure 5 and Figure 6 To ensure that the gas in the pilot hole 111 and the pressure relief hole 122 can push the slider 200 to slide, a first groove 210 is provided at one end of the slider 200; when the slider 200 abuts against the side of the sliding cavity 101 near the pressure relief hole 122, the first groove 210 and the inner wall of the sliding cavity 101 together form a first pressure cavity 211, and the pressure relief hole 122 communicates with the first pressure cavity 211; and / or; a second groove 220 is provided at the other end of the slider 200; when the slider 200 abuts against the side of the sliding cavity 101 near the pilot hole 111, the second groove 220 and the inner wall of the sliding cavity 101 together form a second pressure cavity 221, and the pilot hole 111 communicates with the second pressure cavity 221.

[0049] In the case of the first groove 210, the pressure relief hole 122 only needs to introduce gas into the first pressure chamber 211 formed by the first groove 210 to provide a force parallel to the sliding block 200's direction of movement, thereby pushing the sliding block 200. Therefore, it is not necessary to deliberately open the pressure relief hole 122 facing the end face of the sliding block 200 to provide this force, thus reducing the difficulty of setting the pressure relief hole 122. Similarly, in the case of the second groove 220, the pilot hole 111 only needs to introduce gas into the second pressure chamber 221 formed by the second groove 220 to provide a force parallel to the sliding block 200's direction of movement, thereby pushing the sliding block 200. Therefore, it is not necessary to deliberately open the pilot hole 111 facing the end face of the sliding block 200 to provide this force, thus reducing the difficulty of setting the pilot hole 111.

[0050] It should be noted that the "and / or" mentioned above means that in some embodiments of this application, the first groove 210 and the second groove 220 can be formed on the slider 200 at the same time; while in other embodiments of this application, the first groove 210 can be formed only at one end of the slider 200, or the second groove 220 can be formed only at the other end of the slider 200.

[0051] Optionally, in some embodiments of this application, the pressure relief hole 122 and the pilot hole 111 are respectively formed on opposite sides of the main body 100; the forming direction of the pressure relief hole 122 is at an angle to the moving direction of the slider 200; the forming direction of the pilot hole 111 is at an angle to the moving direction of the slider 200. In other words, the forming direction of the pressure relief hole 122 is at an angle to the extending direction of the sliding cavity 101, and the forming direction of the pilot hole 111 is at an angle to the extending direction of the sliding cavity 101. This method can reduce the difficulty of forming the pilot hole 111 and the pressure relief hole 122, thereby reducing manufacturing costs.

[0052] Based on this, to facilitate the introduction of gas into the first pressure chamber 211 by the pressure relief hole 122, a first groove 210 is formed at the end of the slider 200, and the first groove 210 forms an opening on the side of the slider 200 near the pressure relief hole 122, so that the pressure relief hole 122 can introduce gas into the first pressure chamber 211 through this opening, thereby achieving the purpose of pushing the slider 200. Similarly, to facilitate the introduction of gas into the second pressure chamber 221 by the pilot hole 111, a second groove 220 is formed at the end of the slider 200, and the second groove 220 forms an opening on the side of the slider 200 near the pilot hole 111, so that the pilot hole 111 can introduce gas into the second pressure chamber 221 through this opening, thereby achieving the purpose of pushing the slider 200.

[0053] Optionally, in some embodiments of this application, the first groove 210 may be formed by extending along a straight line through the end face of the slider 200, starting from the opening near the pressure relief hole 122. Of course, the first groove 210 may also be formed in other shapes, such as extending along a straight line to the middle of the end face of the slider 200; or, for example, forming a circular, polygonal or other irregularly shaped groove in the middle of the end face of the slider 200, connecting the groove through another groove extending along a straight line, and forming an opening on the side of the slider 200 near the pressure relief hole 122, etc. Similarly, in some embodiments of this application, the second groove 220 can be formed by extending along a straight line through the end face of the slider 200, starting from the opening near the pilot hole 111. Of course, the second groove 220 can also be formed in other shapes. For example, the second groove 220 can extend along a straight line to the middle of the end face of the slider 200. Another example is that a circular, polygonal, or other irregularly shaped groove is formed in the middle of the end face of the slider 200, and the groove is connected by another groove extending along a straight line, and an opening is formed on the side of the slider 200 near the pilot hole 111.

[0054] It is worth noting that in other embodiments of this application, the first groove 210 and the second groove 220 can also be omitted. In this case, the pressure relief hole 122 forms an opening on the inner wall of the sliding cavity 101 facing the end face of the slider 200, so that the pressure relief hole 122 can directly apply a force to the end face of the slider 200, allowing the slider 200 to slide under the push of the gas in the pressure relief hole 122. Similarly, at this time, the pilot hole 111 forms an opening on the inner wall of the sliding cavity 101 facing the end face of the slider 200, so that the pilot hole 111 can directly apply a force to the end face of the slider 200, allowing the slider 200 to slide under the push of the gas in the pilot hole 111.

[0055] The main body 100 includes a connecting portion 110 and a cover plate 120; a sliding cavity 101 is formed on the connecting portion 110; a second vent 112 and a pilot hole 111 are both formed on the connecting portion 110. The cover plate 120 is detachably connected to the connecting portion 110 to close the sliding cavity 101; a first vent 121 and a pressure relief hole 122 are both formed on the cover plate 120. When assembling the slider 200 or when maintenance of the slider 200 is required, the cover plate 120 can be removed from the connecting portion 110, thereby enabling maintenance or assembly of the slider 200. This facilitates the assembly of the venting structure 10 and also facilitates the replacement of parts.

[0056] Optionally, please refer to the following: Figure 7 and Figure 8The connecting portion 110 also has a receiving cavity 113. The receiving cavity 113 is located on the side of the connecting portion 110 away from the second exhaust port 112, and the receiving cavity 113 communicates with the sliding cavity 101. The cover plate 120 is disposed inside the receiving cavity 113 to close the sliding cavity 101. When the cover plate 120 is installed in the receiving cavity 113, the receiving cavity 113 can provide a restrictive effect on the cover plate 120, thereby improving the stability of the cover plate 120 installed in the receiving cavity 113. In addition, by accommodating the cover plate 120 in the receiving cavity 113, the overall volume of the exhaust structure 10 can be reduced, thereby facilitating the installation of the exhaust structure 10 inside the compressor.

[0057] It should be noted that, to facilitate the installation of the cover plate 120, in some embodiments of this application, the area of ​​the accommodating cavity 113 is larger than the area of ​​the sliding cavity 101, thereby forming a stepped structure at both ends of the sliding cavity 101. The cover plate 120 can be installed on the stepped structure to facilitate the cover plate 120 in closing the sliding cavity 101 and to prevent the installation of the cover plate 120 from affecting the sliding of the slider 200. Optionally, the cover plate 120 can be detachably connected to the stepped structure by means of screws. Of course, the cover plate 120 can also be connected to the stepped structure by means of bonding, snap-fitting, or welding.

[0058] In addition, in the embodiments of this application, the connecting part 110 is a flange structure, which facilitates the connection of the connecting part 110 to the inside of the compressor. The connecting part 110 has a shaft hole 500 in the middle, which is used to install a rotating shaft, thereby facilitating the installation of the compression parts inside the compression chamber. The sliding cavity 101 is spaced apart from the shaft hole 500 to avoid the sliding cavity 101 affecting the setting of the shaft hole 500.

[0059] In embodiments of this application, to reduce the noise generated by the slider 200 sliding in the sliding cavity 101, the exhaust structure 10 further includes a damping pad 300. The damping pad 300 is disposed within the sliding cavity 101 and located at at least one end of the slider 200. When the slider 200 slides under air pressure and impacts the inner walls at both ends of the sliding cavity 101, the damping pad 300 provides a buffering effect, thereby reducing the noise generated by the impact between the slider 200 and the main body 100. Simultaneously, the damping pad 300 also reduces the impact on the slider 200, thereby preventing damage to the slider 200 and the main body 100.

[0060] It should be noted that in some embodiments of this application, damping pads 300 are provided at both ends of the slider 200. In other words, when the slider 200 slides to abut against either end of the sliding cavity 101, the damping pads 300 can provide a buffering effect to the slider 200, thereby reducing the noise generated by the slider 200 and preventing damage to the slider 200 or the main body 100. Of course, in other embodiments of this application, the damping pad 300 may only be provided at one end of the sliding cavity 101.

[0061] Of course, in other embodiments of this application, the damping pad 300 can also be directly connected to both ends of the slider 200, so that the damping pad 300 slides with the slider 200.

[0062] In some embodiments of this application, optionally, the exhaust structure 10 further includes a stop block 400, which is disposed within the sliding cavity 101 and located at at least one end of the slider 200; a damping pad 300 is installed on the side of the stop block 400 near the slider 200. The stop block 400 not only facilitates the installation of the damping pad 300, but also allows adjustment of the sliding stroke of the slider 200. This means that even if the position of the exhaust port 201 on the slider 200 deviates slightly, the position of the slider 200 can be adjusted by the thickness of the stop block 400, thereby ensuring that the slider 200 can effectively close or open the second exhaust port 112.

[0063] It should be noted that in some embodiments of this application, both ends of the sliding cavity 101 are provided with stops 400; it should be understood that in other embodiments of this application, the stop 400 may only be provided at one end of the sliding cavity 101. Of course, in other embodiments of this application, the stop 400 may be omitted.

[0064] In the embodiments of this application, to facilitate the exhaust of the first exhaust port 121 and the second exhaust port 112, the first exhaust port 121 and the second exhaust port 112 are coaxially arranged. This allows the gas in the compression chamber to be quickly discharged through the first exhaust port 121 and the second exhaust port 112 when they are connected via the exhaust port 201, thereby improving exhaust efficiency. Of course, in other embodiments of this application, the first exhaust port 121 and the second exhaust port 112 may also be staggered.

[0065] In order to ensure that the vent 201 can effectively connect the first exhaust port 121 and the second exhaust port 112, the vent 201 can be configured as an oblong hole. In other words, in some embodiments of this application, the diameter of the vent 201 is larger than the diameter of the second exhaust port 112. Based on this, even if the sliding stroke of the slider 200 has a certain error, the oblong vent 201 can ensure that the first exhaust port 121 and the second exhaust port 112 can be effectively connected. It should be understood that in other embodiments of this application, the vent 201 can also be configured as a hole with the same diameter as the first exhaust port 121 and the second exhaust port 112.

[0066] In summary, the compressor and exhaust structure 10 provided in this embodiment can, when the pressure in the compression chamber is higher than the pressure in the exhaust chamber, have a greater gas pressure in the pilot hole 111 than in the pressure relief hole 122. The gas in the pilot hole 111 pushes the slider 200 toward the pressure relief hole 122, causing the slider 200 to abut against the side of the sliding chamber 101 near the pressure relief hole 122. This allows the first exhaust hole 121 and the second exhaust hole 112 to connect through the outlet hole 201, thus guiding the gas from the compression chamber into the exhaust chamber. When the pressure in the compression chamber is lower than the pressure in the exhaust chamber, the gas pressure in the pressure relief hole 122 is higher than the gas pressure in the pilot hole 111. The gas in the pressure relief hole 122 pushes the slider 200 toward the pilot hole 111, causing the slider 200 to abut against the side of the sliding chamber 101 near the pilot hole 111. This closes the second exhaust hole 112, preventing the gas in the exhaust chamber from flowing back into the compression chamber. Based on this, the low-pressure and high-pressure states generated during the compression of the refrigerant in the compression chamber drive the slider 200 to slide in the sliding chamber 101, thereby opening or closing the second exhaust port 112 and the first exhaust port 121. This not only prevents gas backflow in the exhaust chamber but also avoids fatigue damage caused by deformation of the slider 200. This improves the technical problem of easy damage to the exhaust structure 10 in the prior art. Furthermore, the damping pads 300 at both ends of the sliding chamber 101 provide a buffering effect for the slider 200, reducing noise generated by the slider 200 impacting the main body 100 and preventing damage caused by impact between the slider 200 and the main body 100. By setting the stop 400 and making the exhaust port 201 oblong, the stroke setting accuracy requirement of the slider 200 can be reduced, thereby reducing costs.

[0067] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An exhaust structure applied to a compressor, characterized in that, The exhaust structure (10) includes a main body (100) and a slider (200). The main body (100) is mounted on the compressor such that the exhaust chamber and the compression chamber of the compressor are located on opposite sides of the main body (100); The main body (100) has a sliding cavity (101) inside, and the slider (200) is slidably disposed inside the sliding cavity (101); The main body (100) is also provided with a pressure relief hole (122) and a pilot hole (111); the pressure relief hole (122) is connected to the sliding cavity (101) and is used to connect to the exhaust cavity; the pilot hole (111) is connected to the sliding cavity (101) and is used to connect to the compression cavity; the pressure relief hole (122) and the pilot hole (111) are respectively located at both ends of the sliding cavity (101); The main body (100) is provided with a first exhaust hole (121) and a second exhaust hole (112); one end of the first exhaust hole (121) is connected to the sliding cavity (101), and the other end is used to connect to the exhaust cavity; one end of the second exhaust hole (112) is connected to the sliding cavity (101), and the other end is used to connect to the compression cavity; the slider (200) is provided with an air outlet (201). The slider (200) is used to be actuated by the gas in the pilot hole (111) or the gas in the pressure relief hole (122) when there is a pressure difference between the compression chamber and the exhaust chamber; to connect the first exhaust hole (121) and the second exhaust hole (112) through the air outlet (201) when the slider (200) is against the side of the sliding chamber (101) near the pressure relief hole (122); or to close the second exhaust hole (112) when the slider (200) is against the side of the sliding chamber (101) near the pilot hole (111). The first exhaust port (121) and the second exhaust port (112) are coaxially arranged; The diameter of the vent (201) is larger than the diameter of the second vent (112).

2. The exhaust structure according to claim 1, characterized in that, One end of the slider (200) is provided with a first groove (210); when the slider (200) abuts against the sliding cavity (101) near the pressure relief hole (122), the first groove (210) and the inner wall of the sliding cavity (101) together form a first pressure cavity (211), and the pressure relief hole (122) communicates with the first pressure cavity (211); and / or; The other end of the slider (200) is provided with a second groove (220); when the slider (200) abuts against the side of the sliding cavity (101) near the pilot hole (111), the second groove (220) and the inner wall of the sliding cavity (101) together form a second pressure cavity (221), and the pilot hole (111) communicates with the second pressure cavity (221).

3. The exhaust structure according to claim 2, characterized in that, The pressure relief hole (122) and the pilot hole (111) are respectively opened on opposite sides of the main body (100); the opening direction of the pressure relief hole (122) is at an angle to the moving direction of the slider (200); the opening direction of the pilot hole (111) is at an angle to the moving direction of the slider (200).

4. The exhaust structure according to claim 1, characterized in that, The main body (100) includes a connecting part (110) and a cover plate (120); the sliding cavity (101) is opened on the connecting part (110); the second exhaust hole (112) and the pilot hole (111) are both opened on the connecting part (110); the cover plate (120) is detachably connected to the connecting part (110) to close the sliding cavity (101); the first exhaust hole (121) and the pressure relief hole (122) are both opened on the cover plate (120).

5. The exhaust structure according to claim 4, characterized in that, The connecting part (110) is also provided with a receiving cavity (113); the receiving cavity (113) is located on the side of the connecting part (110) away from the second exhaust hole (112), and the receiving cavity (113) communicates with the sliding cavity (101); the cover plate (120) is disposed inside the receiving cavity (113) to close the sliding cavity (101).

6. The exhaust structure according to any one of claims 1-5, characterized in that, The exhaust structure (10) further includes a damping pad (300), which is disposed in the sliding cavity (101) and located at at least one end of the slider (200).

7. The exhaust structure according to claim 6, characterized in that, The exhaust structure (10) further includes a stop (400), which is disposed in the sliding cavity (101) and located at at least one end of the slider (200); the damping pad (300) is installed on the side of the stop (400) near the slider (200).

8. A compressor, characterized in that, Includes the exhaust structure (10) as described in any one of claims 1-7.

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