Compressor

Abstract

The compressor comprises a first scroll part and a second scroll part, the second scroll part comprises a first tooth part, the first scroll part comprises a second tooth part, the first tooth part is meshed with the second tooth part, a compression cavity is formed between the first tooth part and the second tooth part, the first tooth part comprises a tooth groove part and a sealing strip, the tooth groove part is provided with a tooth groove, and the sealing strip is arranged in the tooth groove part. The sealing strip is at least partially positioned in a tooth groove of the tooth groove part; the first side wall of the sealing strip abuts against the third side wall of the tooth groove part, and the second side wall of the sealing strip abuts against the fourth side wall of the tooth groove part. The top wall of the sealing strip can abut against the second vortex piece. The first tooth part is provided with a pneumatic cavity located between the sealing strip and the bottom wall of the tooth groove part, the tooth groove part is provided with a drainage opening, the compression cavity communicates with the drainage opening, and the drainage opening communicates with the pneumatic cavity. According to the compressor, when the compressor operates, gas in the compression cavity flows into the pneumatic cavity from the drainage opening, the first side wall of the sealing strip abuts against the third side wall of the tooth groove part, the second side wall of the sealing strip abuts against the fourth side wall of the tooth groove part, and the probability that high-pressure gas flow leaks from the third side wall or the fourth side wall is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a tooth tip sealing structure of a compressor. BACKGROUND

[0002] In the related art, a compressor includes a first scroll member and a second scroll member, the first scroll member and the second scroll member are engaged, the second scroll member includes a first tooth portion, the first scroll member includes a second tooth portion, the first tooth portion and the second tooth portion are engaged, and a compression chamber is between the first tooth portion and the second tooth portion. The first tooth portion includes a tooth groove portion and a sealing strip, the tooth groove portion has a tooth groove, and the sealing strip is at least partially located in the tooth groove of the tooth groove portion. The sealing strip includes a first side wall, a second side wall, and a top wall, the first side wall is opposite to the second side wall, the tooth groove portion includes a third side wall, a fourth side wall, and a bottom wall, the third side wall is opposite to the fourth side wall, the second side wall of the sealing strip can abut against the fourth side wall of the tooth groove portion, and the top wall of the sealing strip can abut against the first scroll member. When the compressor is running, air flow flows into the tooth groove portion from the side of the third side wall of the tooth groove portion, pushes the second side wall of the sealing strip to abut against the fourth side wall of the tooth groove portion, and pushes the top wall of the sealing strip to abut against the first scroll member. The third side wall of the tooth groove portion serves as an inflow side of the air flow, the tooth groove of the tooth groove portion is communicated with a high-pressure chamber and a low-pressure chamber of the compression chamber, so that high-pressure gas in the high-pressure chamber flows to the low-pressure chamber, and leakage of the high-pressure gas in the high-pressure chamber is caused. SUMMARY

[0003] The present application aims to provide a compressor with reduced probability of high-pressure gas leakage.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a compressor includes a first scroll member and a second scroll member, the first scroll member and the second scroll member are engaged, the second scroll member includes a first tooth portion, the first scroll member includes a second tooth portion, the first tooth portion and the second tooth portion are engaged, and a compression chamber is between the first tooth portion and the second tooth portion. The first tooth portion includes a tooth groove portion and a sealing strip, the tooth groove portion has a tooth groove, and the sealing strip is at least partially located in the tooth groove of the tooth groove portion. The sealing strip includes a first side wall, a second side wall, and a top wall, the first side wall is opposite to the second side wall, the tooth groove portion includes a third side wall, a fourth side wall, and a bottom wall, the third side wall is opposite to the fourth side wall, the first side wall of the sealing strip abuts against the third side wall of the tooth groove portion, the second side wall of the sealing strip abuts against the fourth side wall of the tooth groove portion, and the top wall of the sealing strip can abut against the second scroll member. The first tooth portion has a pneumatic chamber, the pneumatic chamber is located between the sealing strip and the bottom wall of the tooth groove portion, the tooth groove portion has a flow guide port, the compression chamber is communicated with the flow guide port, and the flow guide port is communicated with the pneumatic chamber.

[0005] In the present application, the first tooth part has a pneumatic cavity, the pneumatic cavity is located between the sealing strip and the bottom wall of the tooth groove part, the compression cavity is communicated with the drainage port, the drainage port is communicated with the pneumatic cavity, when the compressor is running, the gas in the compression cavity flows into the pneumatic cavity from the drainage port, so that the first side wall of the sealing strip abuts against the third side wall of the tooth groove part, and the second side wall of the sealing strip abuts against the fourth side wall of the tooth groove part, thereby reducing the probability of leakage of high-pressure gas flow from the third side wall or the fourth side wall. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a structure diagram of one view of an embodiment of the compressor of the present application;

[0007] Figure 2 is Figure 1 is an explosion diagram of one view of the compressor shown in the figure;

[0008] Figure 3 is Figure 1 is an explosion diagram of another view of the compressor shown in the figure;

[0009] Figure 4 is Figure 1 is a sectional view of one view of the compressor shown in the figure;

[0010] Figure 5 is Figure 4 is an enlarged view at circle Q in the figure;

[0011] Figure 6 is Figure 1 is a top view of the second scroll member of the compressor shown in the figure;

[0012] Figure 7 is Figure 6 is an enlarged view at circle R in the figure;

[0013] Figure 8 is Figure 1 is a sectional view of the second scroll member of the compressor shown in the figure;

[0014] Figure 9 is Figure 1 is a structure diagram of one view of the second scroll member of the compressor shown in the figure;

[0015] Figure 10 is Figure 9 is an enlarged view at circle S in the figure;

[0016] Figure 11 is Figure 1 is a structure diagram of another view of the second scroll member of the compressor shown in the figure;

[0017] Figure 12 is Figure 11 is an enlarged view at circle T in the figure;

[0018] Figure 13 isFigure 1 The diagram shows another view of the second scroll component of the compressor.

[0019] Figure 14 yes Figure 1 A cross-sectional view of the second scroll component of the compressor from another perspective;

[0020] Figure 15 yes Figure 1 A cross-sectional view of the compressor's sealing strip from one perspective;

[0021] Figure 16 yes Figure 1 A cross-sectional view of the compressor's sealing strip from another perspective;

[0022] Figure 17 yes Figure 1 A cross-sectional view of the second scroll component of the compressor from another perspective;

[0023] Figure 18 yes Figure 17 Enlarged view of the center circle U;

[0024] Figure 19 yes Figure 1 The image shows a cross-sectional view of the compressor's sealing strip from another perspective;

[0025] Figure 20 yes Figure 19 A magnified view of the area marked W in the middle circle. Detailed Implementation

[0026] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0027] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0029] The compressor of an exemplary embodiment of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0030] The compressor is a crucial component of a vapor compression refrigeration system, its function being to compress low-pressure, low-temperature refrigerant gas into high-pressure, high-temperature refrigerant gas. With technological advancements, the use of electricity as a new energy source (such as electric vehicles) is increasing, leading to a wider range of applications for compressors. Consequently, the operating conditions of compressors have changed. To ensure the normal operation of equipment, fast charging (e.g., fast charging, supercharging) designs are typically implemented to address charging issues beyond those of batteries. Due to these changes in operating conditions, the required cooling capacity varies significantly under different conditions, thus placing new demands on compressors. Please refer to [link / reference]. Figures 1 to 20 This embodiment proposes a compressor 1000, including a first scroll member 200 and a second scroll member 100. The first scroll member 200 and the second scroll member 100 mesh together. The second scroll member 100 includes a first tooth portion 110, and the first scroll member 200 includes a second tooth portion 210. The first tooth portion 110 and the second tooth portion 210 mesh together. A compression chamber 220 is provided between the first tooth portion 110 and the second tooth portion 210. During the compression of the refrigerant, the compressor 1000 is powered on, and the drive component drives the first scroll member 200 to rotate relative to the second scroll member 100. The low-temperature and low-pressure refrigerant enters the compression chamber 220 from the intake pressure chamber. With the relative movement of the first scroll member 200 and the second scroll member 100, the refrigerant is gradually compressed into a high-temperature and high-pressure refrigerant gas from the outside to the inside in the compression chamber 220. When the refrigerant gas in the compression chamber 220 reaches the exhaust pressure, the high-pressure refrigerant gas is discharged from the compression chamber 220 from the exhaust chamber 130.

[0031] In some embodiments, the first scroll member 200 is a moving scroll member, and the second scroll member 100 is a stationary scroll member, that is, the first scroll member 200 rotates while the second scroll member 100 remains stationary. In other embodiments, the first scroll member 200 is a stationary scroll member, and the second scroll member 100 is a moving scroll member.

[0032] When the compressor 1000 is in compression operation, that is, when the first scroll member 200 and the second scroll member 100 rotate relative to each other, the first scroll member 200 and the second scroll member 100 are made of different materials, resulting in different coefficients of thermal expansion. This leads to a large clearance during operation. To prevent refrigerant gas leakage during compression, which would reduce efficiency, the first scroll member 200 and / or the second scroll member 100 require tooth top sealing. The first tooth portion 110 and / or the second tooth portion 210 include a tooth groove portion 120 and a sealing strip 300. The tooth groove portion 120 has tooth grooves, and the sealing strip 300 is at least partially located within the tooth grooves of the tooth groove portion 120. For example, if the sealing strip 300 is entirely located within the grooves of the toothed portion 120, when the compressor 1000 is operating, the refrigerant gas presses the sealing strip 300 away from the toothed portion 120, causing a portion of the sealing strip 300 to be located outside the grooves of the toothed portion 120, abutting against the first scroll member 200 or the second scroll member 100 to achieve a sealing effect. Alternatively, if the first portion of the sealing strip 300 is located within the grooves of the toothed portion 120, when the compressor 1000 is operating, the refrigerant gas presses the sealing strip 300 away from the toothed portion 120, causing the first portion of the sealing strip 300 to be located outside the grooves of the toothed portion 120, and the second portion of the sealing strip 300, originally located within the grooves of the toothed portion 120, also becomes located outside the grooves of the toothed portion 120, abutting against the first scroll member 200 or the second scroll member 100 to achieve a sealing effect.

[0033] like Figure 5As shown, the sealing strip 300 includes a first sidewall 320, a second sidewall 330, and a top wall 340. The first sidewall 320 and the second sidewall 330 are opposite to each other. The toothed portion 120 includes a third sidewall 121, a fourth sidewall 122, and a bottom wall 123. The third sidewall 121 and the fourth sidewall 122 are opposite to each other. The first sidewall 320 of the sealing strip 300 abuts against the third sidewall 121 of the toothed portion 120, and the second sidewall 330 of the sealing strip 300 abuts against the fourth sidewall 122 of the toothed portion 120, reducing the probability of high-pressure airflow leakage from the third sidewall 121 or the fourth sidewall 122. The first sidewall 320 and the second sidewall 330 are two sidewalls along the length direction of the sealing strip 300. The third sidewall 121 and the fourth sidewall 122 are two sidewalls along the length direction of the toothed portion 120. When the sealing strip 300 is elastic, the width of the sealing strip 300 can be equal to or greater than the width of the toothed portion 120. When the width of the sealing strip 300 is greater than the width of the toothed portion 120, the sealing strip 300 and the toothed portion 120 are in an interference fit. When the sealing strip 300 is not elastic, the width of the sealing strip 300 is equal to the width of the toothed portion 120.

[0034] When the sealing strip 300 is located on one side of the first scroll member 200, the top wall 340 of the sealing strip 300 can abut against the second scroll member 100; when the sealing strip 300 is located on one side of the second scroll member 100, the top wall 340 of the sealing strip 300 can abut against the first scroll member 200, thus achieving a seal between the first scroll member 200 and the second scroll member 100. In this way, the first side wall 320, the second side wall 330, and the top wall 340 of the sealing strip 300 all have a sealing effect, improving the sealing reliability of the compressor 1000.

[0035] The first tooth portion 110 has a pneumatic cavity 310, which is located between the sealing strip 300 and the bottom wall 123 of the tooth groove portion 120, such as Figure 6 and Figure 7As shown, the toothed portion 120 has a drain port 124, the compression chamber 220 is connected to the drain port 124, and the drain port 124 is connected to the pneumatic chamber 310. When the compressor 1000 is running, the gas in the compression chamber 220 flows into the pneumatic chamber 310 from the drain port 124, causing the first sidewall 320 of the sealing strip 300 to abut against the third sidewall 121 of the toothed portion 120, and the second sidewall 330 of the sealing strip 300 to abut against the fourth sidewall 122 of the toothed portion 120, reducing the probability of high-pressure airflow leakage from the third sidewall 121 or the fourth sidewall 122. For example, the pneumatic chamber 310 can be close to the third sidewall 121 and the bottom wall 123 of the toothed portion 120, that is, the sealing strip 300 is approximately inverted L-shaped. As another example, the pneumatic chamber 310 can be close to the fourth sidewall 122 and the bottom wall 123 of the toothed portion 120, that is, the sealing strip 300 is approximately inverted L-shaped. Alternatively, the pneumatic cavity 310 may be close to the bottom wall 123 of the toothed portion 120, but not close to the third side wall 121 and the fourth side wall 122 of the toothed portion 120. That is, the sealing strip 300 is generally inverted concave structure. This application is not limited to this, as long as the sealing function of the sealing strip 300 can be achieved.

[0036] In some embodiments, the drain port 124 is located on the bottom wall 123 of the toothed portion 120. The first toothed portion 110 and / or the second toothed portion 210 includes a drain cavity 140, which has a drain cavity extending through the first toothed portion 110 and / or the second toothed portion 210 along the thickness direction of the second vortex member 100. The drain port 124 communicates with the drain cavity of the drain cavity 140. The first vortex member 200 or the second vortex member 100 has an exhaust cavity 130, which communicates with the drain cavity and the exhaust cavity 130. The exhaust cavity 130 communicates with the compression cavity 220. The exhaust cavity 130 and the first toothed portion 110 are arranged along the thickness direction of the second vortex member 100, and / or the exhaust cavity 130 and the second toothed portion 210 are arranged along the thickness direction of the second vortex member 100. In this way, when the drainage cavity passes through the first tooth 110 and / or the second tooth 210 along the thickness direction of the second vortex 100, the drainage cavity is connected to the exhaust cavity 130. Thus, the connection path is shorter and the refrigerant pressure drop loss is smaller.

[0037] In some embodiments, the drainage cavity 140 includes a first sub-drainage cavity 141 and a second sub-drainage cavity 142. The first sub-drainage cavity 141 has a first sub-drainage cavity that communicates with the drainage port 124. The second sub-drainage cavity 142 has a second sub-drainage cavity that communicates with both the first and second sub-drainage cavities and is connected to the exhaust cavity 130. The inner diameter of the first sub-drainage cavity 141 is smaller than the inner diameter of the second sub-drainage cavity 142. Thus, since the second sub-drainage cavity is a chamber communicating with the exhaust cavity 130, the inner diameter of the second sub-drainage cavity 142 can be appropriately larger, which helps to reduce refrigerant pressure drop loss.

[0038] In some embodiments, such asFigures 9 to 12 As shown, the toothed portion 120 includes a boss 125, at least a portion of which is located within the toothed groove of the toothed portion 120. The boss 125 includes a fifth sidewall 1251 and a sixth sidewall 1252. The fifth sidewall 1251 is inclined, and the sixth sidewall 1252 is connected to the fifth sidewall 1251. The sixth sidewall 1252 is perpendicular to the bottom wall 123 of the toothed portion 120. At least a portion of the pneumatic cavity 310's orthogonal projection on the sixth sidewall 1252 is located outside the sixth sidewall 1252. The sixth sidewall 1252 serves to abut against the sealing strip 300. The inclination of the fifth sidewall 1251 facilitates the sealing strip 300 sliding into the toothed portion 120 along the slope, and also provides a communication space for the pneumatic cavity 310 of the sealing strip 300 to connect with the compression cavity 220.

[0039] In some embodiments, such as Figure 13 and Figure 14 As shown, the first tooth portion 110 and / or the second tooth portion 210 includes a seventh sidewall 127. The first tooth portion 110 and / or the second tooth portion 210 has an opening 126 located on the seventh sidewall 127. The first tooth portion 110 and / or the second tooth portion 210 has a third sub-drainage cavity portion 143 and a fourth sub-drainage cavity portion 144. The third sub-drainage cavity portion 143 has a third sub-drainage cavity that communicates with the drainage port 124. The fourth sub-drainage cavity portion 144 has a fourth sub-drainage cavity that communicates with the third sub-drainage cavity and the fourth sub-drainage cavity. The fourth sub-drainage cavity communicates with the opening 126 and the opening communicates with the compression cavity 220. The drainage port 124 is located on the bottom wall 123 of the tooth groove portion 120. The axis of the third sub-drainage cavity portion 143 and the axis of the fourth sub-drainage cavity portion 144 form an acute angle or a right angle. In this way, the refrigerant gas introduced into the compression chamber 220 by drilling a hole in the seventh sidewall 127 of the first tooth 110 and / or the second tooth 210 helps to reduce the path of the refrigerant gas in the compression chamber 220 into the pneumatic chamber 310 and reduce the pressure drop loss of the refrigerant.

[0040] In some embodiments, such as Figure 15 and Figure 16 As shown, the sealing strip 300 includes a first end 350 and a second end 360. The first end 350 includes a first end wall 351, which is perpendicular to the bottom wall 123 of the toothed portion 120. Figure 17 and Figure 18 As shown, the second end 360 includes a first stepped portion 361, and the toothed portion 120 includes a second stepped portion 128, with the first stepped portion 361 engaging with the second stepped portion 128. In this way, the sealing strip 300 engages with the second stepped portion 128 of the toothed portion 120 via the first stepped portion 361, reducing the risk of the sealing strip 300 disengaging from the toothed portion 120 during compressor 1000 operation and enhancing the stability of the sealing strip 300's position within the toothed portion 120.

[0041] In some embodiments, the toothed portion 120 includes a second end wall 129, and a first distance exists between the first end wall 351 and the second end wall 129, the first distance being less than the length of the first step portion 361. Thus, even if the first end wall 351 abuts against the second end wall 129 when the sealing strip 300 floats within the toothed portion 120, due to the relatively long length of the first step portion 361, the first step portion 361 of the sealing strip 300 still engages with the second step portion 128 of the toothed portion 120, which helps reduce the risk of the sealing strip 300 detaching from the toothed portion 120 when floating within it.

[0042] In some embodiments, such as Figure 19 and Figure 20 As shown, the sealing strip 300 includes a main body 371, a first sealing part 372 and a second sealing part 373. The first sealing part 372 and the second sealing part 373 are connected to the main body 371. The first sealing part 372 and the second sealing part 373 are disposed opposite to each other on one side of the main body 371. The pneumatic cavity 310 is located between the first sealing part 372 and the second sealing part 373.

[0043] In some embodiments, the sealing strip 300 includes a first end 350, which has a third end wall 351, a fourth end wall 352, and a fifth end wall 353. All three end walls are inclined. The third end wall 351 is connected to the main body 371, the fourth end wall 352 is connected to the first sealing portion 372, and the fifth end wall 353 is connected to the second sealing portion 373. This inclination of the third end wall 351, fourth end wall 352, and fifth end wall 353 facilitates the smooth sliding of the sealing strip 300 into the toothed groove of the toothed portion 120, thus simplifying the assembly between the sealing strip 300 and the toothed portion 120.

[0044] In some embodiments, the sealing strip 300 is made of polytetrafluoroethylene (PTFE) or a mixture of PTFE and glass fiber. When the sealing strip 300 is made of PTFE, it meets the sealing requirements. When the sealing strip 300 is made of a mixture of PTFE and glass fiber, the glass fiber can provide additional friction to the sealing strip 300, reducing the probability of the sealing strip 300 sliding within the grooves of the toothed portion 120 or disengaging from the toothed portion 120.

[0045] In this application, the "connection" between two components can be a direct connection or a connection via a pipeline. The two components may only have a pipeline between them, or they may have a valve or other component in addition to a pipeline. Similarly, the "connection" between two components in this application can be a direct connection or a connection via a pipeline. The two components may only have a pipeline connection, or they may have a valve or other component in addition to a pipeline connection.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application in any way. Although this application has disclosed the preferred embodiment as above, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A compressor characterized by, The scroll compressor comprises a first scroll member (200) and a second scroll member (100), the second scroll member (100) comprises a first tooth portion (110), the first scroll member (200) comprises a second tooth portion (210), the first tooth portion (110) and the second tooth portion (210) are engaged, and a compression cavity (220) is formed between the first tooth portion (110) and the second tooth portion (210), the first tooth portion (110) comprises a tooth groove portion (120) and a sealing strip (300), the tooth groove portion (120) has a tooth groove, and the sealing strip (300) is at least partially located in the tooth groove of the tooth groove portion (120). The sealing strip (300) comprises a first side wall (320), a second side wall (330) and a top wall (340), the first side wall (320) is opposite to the second side wall (330), the tooth groove portion (120) comprises a third side wall (121), a fourth side wall (122) and a bottom wall (123), the third side wall (121) is opposite to the fourth side wall (122), the first side wall (320) of the sealing strip (300) abuts against the third side wall (121) of the tooth groove portion (120), and the second side wall (330) of the sealing strip (300) abuts against the fourth side wall (122) of the tooth groove portion (120). The top wall (340) of the sealing strip (300) can abut against the second scroll member (100), the first tooth portion (110) has a pneumatic cavity (310), the pneumatic cavity (310) is located between the sealing strip (300) and the bottom wall (123) of the tooth groove portion (120), the tooth groove portion (120) has a drainage port (124), the compression cavity (220) communicates with the drainage port (124), and the drainage port (124) communicates with the pneumatic cavity (310).

2. The compressor of claim 1, wherein, The drainage port (124) is located on the bottom wall (123) of the tooth groove portion (120), the first tooth portion (110) comprises a drainage cavity portion (140), the drainage cavity portion (140) has a drainage cavity, the drainage cavity penetrates through the first tooth portion (110) along a thickness direction of the second scroll member (100), the drainage port (124) communicates with the drainage cavity of the drainage cavity portion (140), and the first scroll member (200) or the second scroll member (100) has an exhaust cavity (130), the drainage cavity communicates with the exhaust cavity (130), and the exhaust cavity (130) communicates with the compression cavity (220).

3. The compressor of claim 2, wherein, The drainage cavity portion (140) comprises a first sub-drainage cavity portion (141) and a second sub-drainage cavity portion (142), the first sub-drainage cavity portion (141) has a first sub-drainage cavity, the first sub-drainage cavity is in communication with the drainage port (124), the second sub-drainage cavity portion (142) has a second sub-drainage cavity, the first sub-drainage cavity is in communication with the second sub-drainage cavity, the second sub-drainage cavity is in communication with the exhaust cavity (130), the inner diameter of the first sub-drainage cavity portion (141) is smaller than the inner diameter of the second sub-drainage cavity portion (142).

4. The compressor of claim 1, wherein, The tooth groove portion (120) comprises a boss (125), at least part of the boss (125) is located in the tooth groove of the tooth groove portion (120), the boss (125) comprises a fifth side wall (1251) and a sixth side wall (1252), the fifth side wall (1251) is inclined, the sixth side wall (1252) is connected with the fifth side wall (1251), the sixth side wall (1252) is perpendicular to the bottom wall (123) of the tooth groove portion (120), at least part of the projection of the pneumatic cavity (310) on the sixth side wall (1252) is located outside the sixth side wall (1252).

5. The compressor of claim 1, wherein, The first tooth portion (110) comprises a seventh side wall (127), the first tooth portion (110) has an opening (126), the opening (126) is located in the seventh side wall (127), the first tooth portion (110) has a third sub-drainage cavity portion (143) and a fourth sub-drainage cavity portion (144), the third sub-drainage cavity portion (143) has a third sub-drainage cavity, the third sub-drainage cavity is in communication with the drainage port (124), the fourth sub-drainage cavity portion (144) has a fourth sub-drainage cavity, the third sub-drainage cavity is in communication with the fourth sub-drainage cavity, the fourth sub-drainage cavity is in communication with the opening (126), the opening is in communication with the compression cavity (220), the drainage port (124) is located in the bottom wall (123) of the tooth groove portion (120), the axis of the third sub-drainage cavity portion (143) and the axis of the fourth sub-drainage cavity portion (144) form an acute angle or a right angle.

6. The compressor according to any one of claims 1 to 5, characterized in that The sealing strip (300) comprises a first end portion (350) and a second end portion (360), the first end portion (350) comprises a first end wall (351), the first end wall (351) is perpendicular to the bottom wall (123) of the tooth groove portion (120), the second end portion (360) comprises a first step portion (361), the tooth groove portion (120) comprises a second step portion (128), the first step portion (361) is engaged with the second step portion (128).

7. The compressor of claim 6, wherein, The tooth groove portion (120) comprises a second end wall (129), the first end wall (351) and the second end wall (129) have a first distance, the first distance is smaller than the length of the first step portion (361).

8. The compressor according to any one of claims 1 to 5, characterized in that The sealing strip (300) comprises a main body part (371), a first sealing part (372) and a second sealing part (373), the first sealing part (372) and the second sealing part (373) are connected with the main body part (371), the first sealing part (372) and the second sealing part (373) are oppositely arranged on one side of the main body part (371), and the pneumatic cavity (310) is located between the first sealing part (372) and the second sealing part (373).

9. The compressor of claim 8, wherein, The sealing strip (300) comprises a first end part (350) having a third end wall (351), a fourth end wall (352) and a fifth end wall (353), the third end wall (351), the fourth end wall (352) and the fifth end wall (353) are all inclined, the third end wall (351) is connected with the main body part (371), the fourth end wall (352) is connected with the first sealing part (372), and the fifth end wall (353) is connected with the second sealing part (373).

10. The compressor according to any one of claims 1 to 5, characterized in that The material of the sealing strip (300) comprises polytetrafluoroethylene or a mixture of polytetrafluoroethylene and glass fiber, the second tooth part (210) comprises a tooth groove part (120) and a sealing strip (300), and the top wall (340) of the sealing strip (300) can abut against the first scroll part (200).

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