compressor

Abstract

The application provides a compressor, which comprises a shell, a static scroll disc, a dynamic scroll disc, a static disc check valve and a sealing ring, the static scroll disc and the dynamic scroll disc enclose a compression cavity, the shell comprises a first cavity; a mounting seat is arranged on the side of the static scroll disc which is opposite to the dynamic scroll disc, a first mounting groove is arranged in the mounting seat, a first opening which is communicated with an exhaust port of the compression cavity is arranged in the groove bottom of the first mounting groove, the groove opening of the first mounting groove is communicated with the first cavity, the static disc check valve comprises a valve body, the valve body comprises a valve main body and a flange plate, the first end of the valve main body is fixedly connected with the flange plate, the second end of the valve main body is arranged in the first mounting groove, the flange plate is opposite to the end face of the end of the mounting seat which is opposite to the dynamic scroll disc, the sealing ring is sleeved on the valve main body and abuts between the end face of the end of the mounting seat which is opposite to the dynamic scroll disc and the flange plate. The compressor provided by the application can reduce the risk of backflow of the gas in the high-pressure cavity to the compression cavity.

Description

Technical Field

[0001] This application relates to the field of gas compression equipment, specifically to a compressor. Background Technology

[0002] In related technologies, a compressor is a fluid machine that elevates low-pressure gas to high-pressure gas and is an important component of a refrigeration system. The compressor primarily elevates low-pressure gas by drawing it from a low-pressure chamber into a compression chamber and discharging the compressed, high-pressure gas from the compression chamber into a high-pressure chamber. However, when the compressor stops, because the gas pressure in the high-pressure chamber is higher than that in the compression chamber, gas in the high-pressure chamber easily leaks into the compression chamber. This leaked high-pressure gas drives the compressor to rotate in reverse, resulting in a decrease in gas pressure in the high-pressure chamber and noise generation. Therefore, existing compressors have a problem of gas easily flowing back from the high-pressure chamber to the compression chamber when the compressor is stopped. Summary of the Invention

[0003] This application provides a compressor to solve the problem that, in the case of existing compressors, gas in the high-pressure chamber tends to flow back into the compression chamber when the compressor is stopped.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a compressor, including a housing, a stationary scroll, a moving scroll, a stationary scroll check valve, and a sealing ring. The stationary scroll and the moving scroll are respectively disposed within the housing, and the stationary scroll and the moving scroll are connected in cooperation. The stationary scroll and the moving scroll enclose a compression chamber. The housing includes a first cavity, which is located on the side of the stationary scroll opposite to the moving scroll.

[0006] The stationary scroll plate has a mounting base on the side opposite to the moving scroll plate. The mounting base has a first mounting groove, and the bottom of the first mounting groove has a first opening that communicates with the exhaust port of the compression chamber. The opening of the first mounting groove communicates with the first cavity. The stationary scroll plate check valve includes a valve body, which includes a valve body and a flange plate. The first end of the valve body is fixedly connected to the flange plate, and the second end of the valve body passes through the first mounting groove. The outer wall of the valve body is fixedly connected to the groove wall of the first mounting groove. The flange plate is opposite to the end face of the mounting base opposite to the moving scroll plate. The sealing ring is fitted onto the valve body and abuts against the end face of the mounting base opposite to the moving scroll plate and the flange plate.

[0007] In this embodiment, a stationary disc check valve is provided between the first cavity and the compression cavity to prevent gas in the first cavity from flowing back into the compression cavity when the compressor is stopped. At the same time, a sealing ring is provided at the connection between the stationary disc check valve and the mounting base, and the sealing ring abuts between the end face of the mounting base opposite to the moving scroll plate and the flange plate. The position of the sealing ring remains unchanged during the operation of the compressor. This helps to improve the sealing performance at the connection between the stationary disc check valve and the mounting base, thereby further reducing the risk of gas in the first cavity flowing back into the compression cavity. Attached Figure Description

[0008] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a cross-sectional view of the compressor in the embodiments of this application;

[0010] Figure 2 This is one of the exploded views of the connection between the stationary vortex disc and the stationary disc check valve in the embodiments of this application;

[0011] Figure 3 This is the second exploded view of the connection between the stationary vortex disc and the stationary disc check valve in the embodiments of this application;

[0012] Figure 4 This is an exploded view of the static disc check valve in the embodiments of this application;

[0013] Figure 5 This is a cross-sectional view of the stationary disc check valve in an embodiment of this application;

[0014] Figure 6 This is one of the cross-sectional views of the connection between the stationary vortex disc and the stationary disc check valve in the embodiments of this application;

[0015] Figure 7 This is the second cross-sectional view of the connection between the stationary vortex disc and the stationary disc check valve in the embodiments of this application;

[0016] Figure 8 This is the third cross-sectional view of the connection between the stationary vortex disc and the stationary disc check valve in the embodiments of this application. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Please see Figure 1-8 , Figure 1-8 This application provides a compressor comprising a housing 100, a stationary scroll plate 200, a moving scroll plate 300, a stationary plate check valve 400, and a sealing ring 500. The stationary scroll plate 200 and the moving scroll plate 300 are respectively disposed within the housing 100, and the stationary scroll plate 200 and the moving scroll plate 300 are connected in cooperation. The stationary scroll plate 200 and the moving scroll plate 300 enclose a compression chamber 102. The housing 100 includes a first cavity 101, which is located on the side of the stationary scroll plate 200 opposite to the moving scroll plate 300.

[0019] The stationary scroll plate 200 has a mounting base 210 on the side opposite to the moving scroll plate 300. A first mounting groove 220 is formed within the mounting base 210. A first opening 221 communicating with the exhaust port of the compression chamber 102 is formed at the bottom of the first mounting groove 220. The opening of the first mounting groove 220 communicates with the first cavity 101. The stationary plate check valve 400 includes a valve body 410, which includes a valve body 411 and a flange plate 412. The first end of the valve body 411 is connected to… The flange plate 412 is fixedly connected, the second end of the valve body 411 passes through the first mounting groove 220, and the outer side wall of the valve body 411 is fixedly connected to the groove wall of the first mounting groove 220. The flange plate 412 and the end face of the mounting seat 210 opposite to the end of the moving scroll plate 300 are opposite to each other. The sealing ring 500 is sleeved on the valve body 411, and the sealing ring 500 abuts between the end face of the mounting seat 210 opposite to the end of the moving scroll plate 300 and the flange plate 412.

[0020] The compressor mentioned above can be a scroll compressor, specifically a compressor in an air conditioning heat pump system. The principle by which the compressor compresses gas can be the same as the compression principle of various compressors in air conditioning heat pump systems in related technologies. Accordingly, in the embodiments of this application, the relevant structure for gas compression by the compressor can be the same as the internal gas compression structure of various compressors in air conditioning heat pump systems in related technologies.

[0021] Please see Figure 1In some embodiments of this application, the compressor further includes a second cavity 103, a muffler cover 700, an intake pipe 1000, an exhaust pipe 900, and a drive assembly 1100. The muffler cover 700 is disposed within the housing 100 and is sealed to the inner wall of the housing 100. The muffler cover 700 divides the internal space of the housing 100 into the first cavity 101 and the second cavity 103. (See also...) Figure 1 In some embodiments of this application, the muffler cover 700 may be located on the side of the stationary disc check valve 400 opposite to the moving scroll plate 300, and the muffler cover 700 has a sixth opening 701 opposite to the stationary disc check valve 400, so that during normal operation of the compressor, the compressed high-pressure gas flowing out of the stationary disc check valve 400 can enter the first chamber 101 through the sixth opening 701. The first chamber 101 is the high-pressure chamber of the compressor, the second chamber 103 is the low-pressure chamber of the compressor, the suction pipe 1000 is connected to the second chamber 103 to provide a low-pressure medium to the compression chamber 102, and the exhaust pipe 900 is connected to the first chamber 101 to discharge the high-pressure medium.

[0022] Specifically, the drive assembly 1100 is connected to the moving scroll plate 300 to drive the moving scroll plate 300 to rotate relative to the stationary scroll plate 200. The drive assembly 1100 may include a first end of the crankshaft 800 extending into the oil sump, a bearing housing provided at the end of the moving scroll plate 300 facing away from the stationary scroll plate 200, a journal bearing provided in the bearing housing, a second end of the crankshaft 800 connected to the journal bearing, and a rotary drive module installed within the housing 100. The power output end of the rotary drive module is connected to the crankshaft 800 to drive the crankshaft 800 to rotate. While the crankshaft 800 rotates, it can drive the moving scroll plate 300 to rotate synchronously, thereby achieving relative rotation between the moving scroll plate 300 and the stationary scroll plate 200, thus realizing the gas compression function of the compressor. The rotary drive module can be any drive component 1100 capable of outputting rotary motion, such as a conventional motor or an electromagnetic rotary motor. For details, please refer to [link to relevant documentation]. Figure 1 The rotary drive module may include a motor stator 1120 connected to the inner wall of the housing 100, and a rotor assembly 1110 corresponding to the motor stator 1120. The motor stator 1120 and the rotor assembly 1110 are connected in cooperation, and the rotor assembly 1110 is connected to the crankshaft 800. In this way, while the motor electronically drives the rotor assembly 1110 to rotate, the crankshaft 800 can rotate synchronously with the rotor assembly 1110.

[0023] It is understood that when the compressor is in operation, the stationary disc check valve 400 can be in the open state to connect the compression chamber 102 and the first chamber 101. At this time, the compressed high-pressure gas discharged from the exhaust port of the compression chamber 102 can flow into the first chamber 101 through the stationary disc check valve 400. Correspondingly, when the compressor is not in operation, that is, when the compressor is stopped, the stationary disc check valve 400 can be in the closed state. At this time, the compression chamber 102 and the first chamber 101 are not connected.

[0024] In this embodiment, the flange plate 412 can press the sealing ring 500 against the end face of the mounting base 210 opposite to the moving scroll plate 300, that is, the sealing ring 500 will not move with other components in the compressor, which helps to improve the sealing performance between the mounting base 210 and the flange plate 412.

[0025] In this embodiment, a stationary disc check valve 400 is provided between the first chamber 101 and the compression chamber 102 to prevent gas in the first chamber 101 from flowing back into the compression chamber 102 when the compressor is stopped. At the same time, a sealing ring 500 is provided at the connection between the stationary disc check valve 400 and the mounting base 210, and the sealing ring 500 abuts between the end face of the mounting base 210 opposite to the moving scroll plate 300 and the flange plate 412. During the operation of the compressor, the position of the sealing ring 500 remains unchanged. This helps to improve the sealing performance at the connection between the stationary disc check valve 400 and the mounting base 210. Since the function of the sealing ring 500 is to separate the first chamber 101 from the intermediate pressure chamber 104, the risk of gas leaking from the first chamber 101 into the intermediate pressure chamber 104 can also be reduced.

[0026] Optionally, the sealing ring 500 is an elastic sealing ring, and the sealing ring 500 is in an elastic compression state.

[0027] The sealing ring 500 can be made of a wear-resistant and high-temperature-resistant elastic material to ensure good sealing performance and long service life under high pressure conditions. The shape of the sealing ring 500 can be set as needed; for example, the sealing ring 500 can be circular, elliptical, or other shapes.

[0028] Please see Figure 6 In some embodiments of this application, the sealing ring 500 can face towards Figure 6 The direction indicated by the solid arrow in the middle is axially compressed, so that the two ends of the sealing ring 500 press against the flange plate 412 and the mounting base 210 respectively.

[0029] In this embodiment, by making the sealing ring 500 an elastic sealing ring and the sealing ring 500 in an elastic compression state, it is beneficial to further improve the sealing performance between the mounting base 210 and the flange plate 412.

[0030] Optionally, the flange plate 412 has a limiting protrusion 4123 on one end face facing the mounting base 210, and the limiting protrusion 4123 fits against the outer wall of the sealing ring 500.

[0031] Please see Figure 3 and Figure 5 This allows the sealing ring 500 to be positioned between the limiting protrusion 4123 and the side wall of the valve body 411.

[0032] Please see Figure 5 In some embodiments of this application, the limiting protrusion 4123 is an annular protrusion, and the limiting protrusion 4123 has a limiting hole that matches the sealing ring 500. The sealing ring 500 is located in the limiting hole, and the outer wall of the sealing ring 500 is in contact with the hole wall of the limiting hole.

[0033] In other embodiments of this application, the limiting protrusion 4123 may also be a limiting protrusion 4123 formed by multiple protrusions, which may be arranged around the sealing ring 500 to limit the sealing ring 500 in different positions.

[0034] In this embodiment, by providing a limiting protrusion 4123 on the end face of the flange plate 412 facing the mounting base 210, and by making the limiting protrusion 4123 fit against the outer wall of the sealing ring 500, radial displacement of the sealing ring 500 can be prevented, thereby fixing the position of the sealing ring 500.

[0035] Optionally, the flange plate 412 has a limiting groove on one end face facing the mounting base 210, the sealing ring 500 is accommodated in the limiting groove, and the outer wall of the sealing ring 500 is in contact with the groove wall of the limiting groove.

[0036] In this embodiment, by providing a limiting groove on the end face of the flange plate 412 facing the mounting base 210, and by placing the sealing ring 500 in the limiting groove, and by having the outer side wall of the sealing ring 500 fit against the groove wall of the limiting groove, radial displacement of the sealing ring 500 can be prevented, thereby fixing the position of the sealing ring 500.

[0037] Optionally, the wall of the first mounting groove 220 is provided with an internal thread, and the outer wall of the valve body 411 is provided with an external thread that matches the internal thread, and the valve body 411 is threadedly connected to the first mounting groove 220; or,

[0038] The valve body 411 is interference-fitted with the first mounting groove 220.

[0039] Please see Figure 3 An internal thread can be provided on the wall of the first mounting groove 220, and an external thread matching the internal thread can be provided on the outer wall of the valve body 411. In this way, during the assembly of the stationary disc check valve 400, the external thread of the valve body 411 can be screwed into the internal thread of the first mounting groove 220 to achieve a threaded connection between the valve body 411 and the first mounting groove 220, thereby fixing the position of the valve body 411 and the first mounting groove 220.

[0040] In other embodiments of this application, the valve body 411 may also be connected to the first mounting groove 220 by an interference fit. In addition, the valve body 411 may also be fixedly connected to the first mounting groove 220 by other mechanical fastening methods.

[0041] In this embodiment, the outer wall of the valve body 411 is fixedly connected to the groove wall of the first mounting groove 220 by threading the valve body 411 to the first mounting groove 220, or by interference fit connecting the valve body 411 to the first mounting groove 220.

[0042] Optionally, the stationary disc check valve 400 further includes a valve plate 420 and a valve seat 430. The valve body 411 has a slide rail 4112 extending from the first end to the second end. The second end of the valve body 411 has a second mounting groove, the axis of which coincides with the axis of the slide rail 4112, and the diameter of the second mounting groove is larger than the diameter of the slide rail 4112. The valve seat 430 is embedded in the second mounting groove and is fixedly connected to the groove wall of the second mounting groove. The valve plate 420 includes a second opening 431 coaxially arranged with the slide rail 4112, and the diameter of the second opening 431 is smaller than the diameter of the slide rail 4112. The side wall of the valve body 411 has a third opening 4111, and the flange plate 412 has a fourth opening 4121 and a fifth opening 4122. The fourth opening 4121 is opposite to the third opening 4111, and the third opening 4111 communicates with the first cavity 101 through the fourth opening 4121. The fifth opening 4122 is opposite to the valve plate 420.

[0043] The diameter of the valve plate 420 matches the diameter of the slide rail 4112, and the valve plate 420 and the slide rail 4112 are slidably connected. When the valve plate 420 slides to fit against the valve seat 430, the valve plate 420 closes the second opening 431, and the compression chamber 102 is not in communication with the first chamber 101.

[0044] When the valve plate 420 slides to fit against the flange plate 412, the second opening 431 opens, and the compression chamber 102 communicates with the first chamber 101.

[0045] Specifically, during the operation of the compressor, the compressed gas discharged from the exhaust port of the compression chamber 102 can enter the slide rail 4112 through the first opening 221 located at the bottom of the first mounting groove 220. During this process, the compressed gas entering from the first opening 221 will push the valve plate 420 to move towards the flange plate 412 until the valve plate 420 is in contact with the flange plate 412. At the same time, the compressed gas entering the slide rail 4112 can enter the first cavity 101 in sequence through the third opening 4111, the fourth opening 4121, and the sixth opening 701 located on the muffler cover 700, and can be discharged through the exhaust pipe 900. Correspondingly, when the compressor is in a stopped state, since the gas pressure in the first chamber 101 is higher than the gas pressure in the compression chamber 102, the high-pressure gas in the first chamber 101 will move towards the compression chamber 102. The high-pressure gas in the first chamber 101 can pass through the flange plate 412 through the fifth opening 4122. The high-pressure gas passing through the flange plate 412 through the fifth opening 4122 can push the valve plate 420 to slide towards the valve seat 430 until the valve plate 420 is in contact with the valve seat 430. At this time, the valve plate 420 closes the second opening 431, so that the high-pressure gas in the first chamber 101 can no longer enter the compression chamber 102 through the second opening 431, thereby preventing the gas in the first chamber 101 from flowing back.

[0046] In this embodiment of the application, the number of the third opening 4111 and the fourth opening 4121 can both be at least one, and the third opening 4111 and the fourth opening 4121 correspond one-to-one. The third opening 4111 is opposite to and connected to the corresponding fourth opening 4121. For example, please refer to... Figure 4 In some embodiments of this application, the flange plate 412 may have three arc-shaped fourth openings 4121. Correspondingly, three corresponding third openings 4111 may be opened on the side wall of the valve body 411. See also... Figure 4The third opening 4111 can extend from the first end to the second end of the valve body 411. In this way, the flow area of ​​the airflow passage between the first chamber 101 and the compression chamber 102 can be increased during normal operation of the compressor.

[0047] Please see Figure 4 The fifth opening 4122 can be a central hole opened at the axis of the flange plate 412. In this way, when the compressor is stopped, the high-pressure gas entering the valve body 411 through the fifth opening 4122 can smoothly push the valve plate 420 to slide toward the valve seat 430.

[0048] Optionally, the end face of the valve seat 430 facing away from the bottom of the second mounting groove extends out of the second mounting groove, and the end face of the valve seat 430 facing away from the bottom of the second mounting groove is in contact with the bottom of the first mounting groove 220.

[0049] In this embodiment, after the stationary disc check valve 400 is installed in the first mounting groove 220, the end face of the valve seat 430 facing away from the bottom of the second mounting groove is in contact with the bottom of the first mounting groove 220. At this time, the bottom of the first mounting groove 220 acts as a thrust surface, preventing the stationary disc check valve 400 from moving further toward the bottom of the first mounting groove 220, thereby ensuring the reliability of the connection between the stationary disc check valve 400 and the first mounting groove 220. Furthermore, the thrust surface also provides support for the stationary disc check valve 400, ensuring the correct installation of the sealing ring 500.

[0050] Optionally, the compressor further includes a floating sealing plate 600, and the stationary scroll plate 200 is provided with a third mounting groove 230 on the side opposite to the moving scroll plate 300. The mounting seat 210 is a mounting seat 210 that protrudes from the bottom of the third mounting groove 230 toward the side opposite to the moving scroll plate 300.

[0051] The floating sealing plate 600 is annular and is slidably sleeved on the outer side of the mounting base 210. The floating sealing plate 600 is sealed to the outer side wall of the mounting base 210, and the outer side wall of the floating sealing plate 600 is in contact with the inner side wall of the third mounting groove 230. The floating sealing plate 600 is also sealed to the inner side wall of the third mounting groove 230.

[0052] Please see Figure 1In this embodiment, the floating sealing plate 600 can form a medium-pressure cavity 104 with the stationary vortex disk 200, and the floating sealing plate 600 can isolate the medium-pressure cavity 104 from the second cavity 103. Furthermore, the floating sealing plate 600 and the silencing cover 700 together isolate the first cavity 101 and the second cavity 103.

[0053] In this embodiment, by setting the floating sealing plate 600, the floating sealing plate 600 can cooperate with the sound-absorbing cover 700 to jointly achieve the isolation between the first cavity 101 and the second cavity 103, thereby further improving the isolation effect between the first cavity 101 and the second cavity 103.

[0054] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A compressor, characterized in that, The system includes a housing (100), a stationary scroll plate (200), a moving scroll plate (300), a stationary check valve (400), and a sealing ring (500). The stationary scroll plate (200) and the moving scroll plate (300) are respectively disposed within the housing (100), and the stationary scroll plate (200) and the moving scroll plate (300) are connected in a cooperative manner. The stationary scroll plate (200) and the moving scroll plate (300) enclose a compression cavity (102). The housing (100) includes a first cavity (101), which is located on the side of the stationary scroll plate (200) that is opposite to the moving scroll plate (300). The stationary scroll plate (200) has a mounting base (210) on the side opposite to the moving scroll plate (300). A first mounting groove (220) is provided in the mounting base (210). A first opening (221) communicating with the exhaust port of the compression chamber (102) is provided at the bottom of the first mounting groove (220). The opening of the first mounting groove (220) communicates with the first cavity (101). The stationary plate check valve (400) includes a valve body (410), which includes a valve body (411) and a flange plate (412). The first... The valve body (411) is fixedly connected to the flange plate (412). The second end of the valve body (411) passes through the first mounting groove (220), and the outer wall of the valve body (411) is fixedly connected to the groove wall of the first mounting groove (220). The flange plate (412) and the end face of the mounting seat (210) opposite to the moving scroll plate (300) are opposite to each other. The sealing ring (500) is sleeved on the valve body (411), and the sealing ring (500) abuts against the end face of the mounting seat (210) opposite to the moving scroll plate (300) and the flange plate (412).

2. The compressor according to claim 1, characterized in that, The sealing ring (500) is an elastic sealing ring, and the sealing ring (500) is in an elastic compression state.

3. The compressor according to claim 1, characterized in that, The flange plate (412) has a limiting protrusion (4123) on one end facing the mounting base (210), and the limiting protrusion (4123) fits against the outer wall of the sealing ring (500).

4. The compressor according to claim 3, characterized in that, The limiting protrusion (4123) is an annular protrusion, and the limiting protrusion (4123) has a limiting hole that matches the sealing ring (500). The sealing ring (500) is located in the limiting hole, and the outer wall of the sealing ring (500) is in contact with the hole wall of the limiting hole.

5. The compressor according to claim 1, characterized in that, The flange plate (412) has a limiting groove on one end face facing the mounting base (210), the sealing ring (500) is housed in the limiting groove, and the outer wall of the sealing ring (500) is in contact with the groove wall of the limiting groove.

6. The compressor according to claim 1, characterized in that, The first mounting groove (220) has an internal thread on its groove wall, and the outer side wall of the valve body (411) has an external thread that matches the internal thread. The valve body (411) is threadedly connected to the first mounting groove (220).

7. The compressor according to claim 1, characterized in that, The valve body (411) is interference-fitted with the first mounting groove (220).

8. The compressor according to claim 1, characterized in that, The stationary disc check valve (400) further includes a valve plate (420) and a valve seat (430). The valve body (411) has a slide rail (4112) extending from the first end to the second end. A second mounting groove is formed at the second end of the valve body (411). The axis of the second mounting groove coincides with the axis of the slide rail (4112), and the diameter of the second mounting groove is larger than the diameter of the slide rail (4112). The valve seat (430) is embedded in the second mounting groove and is fixedly connected to the groove wall of the second mounting groove. The valve seat (430) includes components that connect with the slide rail... A second opening (431) is coaxially arranged with the slide (4112), and the diameter of the second opening (431) is smaller than the diameter of the slide (4112). A third opening (4111) is provided on the side wall of the valve body (411). A fourth opening (4121) and a fifth opening (4122) are provided on the flange plate (4122). The fourth opening (4121) is opposite to the third opening (4111), and the third opening (4111) is connected to the first cavity (101) through the fourth opening (4121). The fifth opening (4122) is opposite to the valve plate (420). The diameter of the valve plate (420) matches the diameter of the slide rail (4112), and the valve plate (420) and the slide rail (4112) are slidably connected. When the valve plate (420) slides to fit against the valve seat (430), the valve plate (420) closes the second opening (431), and the compression chamber (102) is not in communication with the first chamber (101). When the valve plate (420) slides to fit against the flange plate (412), the second opening (431) opens, and the compression chamber (102) communicates with the first chamber (101).

9. The compressor according to claim 8, characterized in that, The end face of the valve seat (430) facing away from the bottom of the second mounting groove extends out of the second mounting groove, and the end face of the valve seat (430) facing away from the bottom of the second mounting groove is in contact with the bottom of the first mounting groove (220).

10. The compressor according to any one of claims 1-9, characterized in that, The compressor also includes a floating sealing plate (600), and the stationary scroll plate (200) has a third mounting groove (230) on the side opposite to the moving scroll plate (300). The mounting seat (210) is a mounting seat (210) that protrudes from the bottom of the third mounting groove (230) toward the side opposite to the moving scroll plate (300). The floating sealing plate (600) is annular and is slidably sleeved on the outside of the mounting base (210). The floating sealing plate (600) is sealed to the outer wall of the mounting base (210). The outer wall of the floating sealing plate (600) is in contact with the inner wall of the third mounting groove (230) and is sealed to the inner wall of the third mounting groove (230).

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