Scroll compressor and thermal management system

Abstract

The invention discloses a scroll compressor and a heat management system. The scroll compressor comprises a movable scroll plate, a heat exchanger and a heat exchanger, the scroll compressor comprises a fixed scroll plate and a movable scroll plate, the fixed scroll plate and the movable scroll plate jointly define a compression cavity, the fixed scroll plate is provided with a variable-capacity communicating channel, and the movable scroll plate can move relative to the fixed scroll plate so as to intermittently communicate and separate the compression cavity and the variable-capacity communicating channel. According to the scroll compressor disclosed by the invention, gas in the compression cavity can be subjected to pressure relief through the variable-capacity communication channel.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a scroll compressor and a thermal management system. Background Technology

[0002] Due to varying environmental conditions, refrigeration and air conditioning systems operate under a wide range of load conditions. Adjustable compressor capacity effectively improves the efficiency of refrigeration systems under changing conditions and loads. Besides variable frequency drive (VFD) technology, mechanical variable capacity technology has significant application value due to its reliability and low cost.

[0003] In related technologies, the variable displacement channel of the compressor is set after the suction ends and connects to the suction chamber. It has low resistance to liquid slugging, and the clearance volume generated by the variable displacement channel has a significant impact on the compressor performance. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a scroll compressor in which the gas within the compression chamber can be depressurized through a variable-capacity connecting channel.

[0005] Another object of the present invention is to provide a thermal management system employing the above-described scroll compressor.

[0006] A scroll compressor according to a first aspect of the present invention includes: a moving scroll disk; a stationary scroll disk, the stationary scroll disk and the moving scroll disk jointly defining a compression chamber, the stationary scroll disk having a variable-capacity communication channel, and the moving scroll disk being movable relative to the stationary scroll disk to intermittently connect and disconnect the compression chamber and the variable-capacity communication channel.

[0007] According to embodiments of the present invention, the variable-capacity scroll compressor can achieve variable-capacity operation by providing a variable-capacity connecting channel. Furthermore, this improves the scroll compressor's resistance to liquid slugging, while minimizing the impact of the clearance volume generated by the variable-capacity connecting channel on the scroll compressor's performance, thus minimizing the impact of the variable-capacity connecting channel on the scroll compressor's performance.

[0008] According to some embodiments of the present invention, one end of the variable-capacity communication channel has an opening formed on a side surface of the stationary scroll facing the moving scroll, the moving scroll being movable relative to the stationary scroll to intermittently connect and disconnect the compression chamber and the opening.

[0009] According to some embodiments of the present invention, the opening is configured to begin communicating with the compression chamber before the engagement and intake of the stationary scroll plate and the moving scroll plate ends.

[0010] According to some embodiments of the present invention, when the static scroll plate and the moving scroll plate finish engaging and drawing air, the opening and the compression chamber are in complete communication.

[0011] According to some embodiments of the present invention, the scroll compressor has an intake side that is intermittently connected to and disconnected from the compression chamber. When the connection between the intake side and the compression chamber is at its maximum, the moving scroll teeth of the moving scroll disk completely cover the opening to disconnect the opening from the compression chamber.

[0012] According to some embodiments of the present invention, the width of the opening is less than or equal to the thickness at the corresponding position of the moving vortex tooth.

[0013] According to some embodiments of the present invention, the length of the opening is less than the extension length of the compression chamber when the intake side is separated from the compression chamber.

[0014] According to some embodiments of the present invention, there are multiple variable displacement communication channels, each of which includes an axial variable displacement communication slot for the compression chamber and a radial variable displacement channel. The axial variable displacement communication slot for the compression chamber is formed on the side of the stationary scroll facing the moving scroll. The axial variable displacement communication slot for the compression chamber is connected to the compression chamber in a discontinuous manner through the opening. At least one variable displacement exhaust channel is formed on the stationary scroll. The axial variable displacement communication slots for the compression chambers of the multiple variable displacement communication channels are respectively connected to the variable displacement exhaust channel through the corresponding radial variable displacement channel.

[0015] According to some embodiments of the present invention, the plurality of the variable-capacity connecting channels are radially symmetrical about the static vortex disk.

[0016] According to some embodiments of the present invention, a static scroll groove is formed on the side surface of the static scroll disk facing the moving scroll disk, and static scroll teeth are provided on the bottom wall of the static scroll groove. A static scroll cavity is defined between the static scroll teeth and the inner wall of the static scroll groove. The static scroll cavity and the moving scroll disk together define the compression cavity. The scroll compressor has an intake side, which is intermittently connected to and disconnected from the compression cavity. The variable displacement exhaust passage is connected to the intake side.

[0017] According to some embodiments of the present invention, one end of the variable displacement exhaust channel is connected to the radial variable displacement channel, and the other end of the variable displacement exhaust channel penetrates the bottom wall of the static vortex groove and is connected to the intake side.

[0018] According to some embodiments of the present invention, the other end of the variable displacement exhaust channel is adjacent to the intake side.

[0019] According to some embodiments of the present invention, the variable displacement exhaust passage extends along the axial direction of the stationary vortex disk.

[0020] According to some embodiments of the present invention, a plurality of the variable-capacity connecting channels are located between the static vortex groove and the other side surface of the static vortex disk.

[0021] According to some embodiments of the present invention, at least one flow regulating device mounting hole is formed on the stationary scroll plate, the flow regulating device mounting hole is connected between the radial variable displacement channel and the variable displacement exhaust channel, and the scroll compressor further includes: at least one flow regulating device, at least a portion of the flow regulating device is disposed in the flow regulating device mounting hole, the flow regulating device is used to adjust the connection opening between the radial variable displacement channel and the variable displacement exhaust channel.

[0022] According to some embodiments of the present invention, at least one sealing element is provided between the flow regulating device and the inner wall of the flow regulating device mounting hole.

[0023] According to some embodiments of the present invention, the flow regulating device is a solenoid valve or an electronic expansion valve.

[0024] According to some embodiments of the present invention, one end of the flow regulating device mounting hole is connected to the variable displacement exhaust channel, the radial variable displacement channel is connected to the side wall of the flow regulating device mounting hole, and the other end of the flow regulating device mounting hole penetrates the outer peripheral surface of the stationary vortex disk.

[0025] According to some embodiments of the present invention, one end of the plurality of radial variable displacement channels is respectively connected to the plurality of axial variable displacement connecting slots of the compression chamber, and the other end of the plurality of radial variable displacement channels is connected to the variable displacement exhaust channel; the plurality of axial variable displacement connecting slots of the compression chamber and the plurality of radial variable displacement channels are symmetrical about a first radial line of the body, and the line connecting the one end of the plurality of radial variable displacement channels constitutes a second radial line of the body, the second radial line being perpendicular to the first radial line.

[0026] According to some embodiments of the present invention, the axial variable displacement connecting slot of the compression cavity includes one or more sub-connecting slots, and the cross-sectional shape of the sub-connecting slots is circular, elliptical, oblong, waist-shaped, arc-shaped or polygonal.

[0027] According to some embodiments of the present invention, the arc is a circular arc, which is a semicircle or a semi-ellipse; and / or, the polygon is a trapezoid, rectangle, parallelogram, rhombus or triangle.

[0028] According to some embodiments of the present invention, the variable displacement exhaust channel is one, and the plurality of axial variable displacement connecting slots of the compression chambers and the plurality of radial variable displacement channels are symmetrical about the variable displacement exhaust channel; or, the variable displacement exhaust channel is multiple, and the plurality of axial variable displacement connecting slots of the compression chambers, the plurality of radial variable displacement channels and the plurality of variable displacement exhaust channels are radially symmetrical about the stationary vortex disk.

[0029] A thermal management system according to a second aspect of the present invention includes a scroll compressor as described in the first aspect of the present invention.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is a schematic diagram of the stationary scroll plate of a scroll compressor according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the stationary scroll plate of a scroll compressor according to an embodiment of the present invention from another angle;

[0034] Figure 3 This is a side view of the stationary scroll plate of a scroll compressor according to an embodiment of the present invention;

[0035] Figure 4 This is a top view of the stationary scroll plate of a scroll compressor according to an embodiment of the present invention;

[0036] Figure 5 yes Figure 4 Cross-sectional view along the NN line;

[0037] Figure 6 yes Figure 4 Cross-sectional view along the MM line;

[0038] Figure 7 This is a schematic diagram of a scroll compressor according to an embodiment of the present invention;

[0039] Figure 8 yes Figure 7 Cross-sectional view along line LL;

[0040] Figure 9 This is an axial cross-sectional view of a scroll compressor according to an embodiment of the present invention;

[0041] Figure 10 This is a front view of a scroll compressor according to an embodiment of the present invention;

[0042] Figure 11 This is a top view of a scroll compressor according to an embodiment of the present invention;

[0043] Figure 12 This is a rear view of a scroll compressor according to an embodiment of the present invention;

[0044] Figure 13 This is a schematic diagram of different engagement states of the stationary scroll and the moving scroll of a scroll compressor according to an embodiment of the present invention.

[0045] Figure label:

[0046] 100. Scroll compressor;

[0047] 1. Static vortex disk; 10. Variable volume connecting channel; 101. Opening;

[0048] 11. Axial variable displacement connecting slot of the compression chamber; 12. Radial variable displacement channel;

[0049] 13. Variable displacement exhaust channel; 14. Static vortex groove; 141. Static vortex teeth;

[0050] 15. Static vortex chamber; 151. Intake side; 152. Exhaust side;

[0051] 16. Flow regulating device mounting hole; 17. Pressure relief hole;

[0052] 18. First radial line; 19. Second radial line; 102. Exhaust port;

[0053] 201. Flow regulating device; 202. Seal;

[0054] 301. Moving vortex disk;

[0055] 3011, Compression chamber; 3012, Moving vortex gear; 302, Shell;

[0056] 3021. Front cover assembly; 3022. Rear cover assembly; 3023. Screws;

[0057] 303. Air intake; 304. Exhaust outlet;

[0058] 305. Support assembly; 306. Stator assembly;

[0059] 307. Rotor assembly; 308. Crankshaft; 309. Secondary compression chamber. Detailed Implementation

[0060] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-13A scroll compressor 100 according to an embodiment of the first aspect of the present invention is described.

[0061] like Figure 1 , Figure 2 , Figure 9 and Figure 12 As shown, the scroll compressor 100 according to a first aspect embodiment of the present invention includes a moving scroll disk 301 and a stationary scroll disk 1.

[0062] Specifically, the stationary vortex disk 1 and the moving vortex disk 301 together define the compression chamber 3011. The stationary vortex disk 1 has a variable volume connecting channel 10. The moving vortex disk 301 is movable relative to the stationary vortex disk 1 to intermittently connect and disconnect the compression chamber 3011 and the variable volume connecting channel 10.

[0063] For example, in Figure 9 and Figure 13 In the example, the moving scroll plate 301 cooperates with the stationary scroll plate 1 to define the compression chamber 3011. The moving scroll plate 301 is rotatable relative to the stationary scroll plate 1 in the circumferential direction around the stationary scroll plate 1 to intermittently connect and disconnect the compression chamber 3011 and the variable-volume connecting channel 10. Figure 12 As shown, the moving scroll plate 301 can rotate clockwise along the stationary scroll plate 1, intermittently connecting and disconnecting the compression chamber 3011 and the variable displacement connecting channel 10 during rotation. For example, Figure 13 In the diagram, B represents the state where the compression chamber 3011 and the variable displacement connecting channel 10 are separated. When the moving scroll plate 301 rotates clockwise to... Figure 13 In step D, the compression chamber 3011 and the variable displacement connecting channel 10 are fully connected. The moving scroll plate 301 is... Figure 13 B in the middle rotates to Figure 13 During the process of reaching state D, the compression chamber 3011 gradually connects with the variable displacement communication channel 10. As the moving scroll plate 301 continues to rotate clockwise... Figure 13 In G, the compression chamber 3011 and the variable displacement connecting channel 10 are completely isolated. The moving scroll plate 301 is... Figure 13 D in the middle rotates to Figure 13 During the process of the G state, the compression chamber 3011 and the variable volume connecting channel 10 are gradually separated.

[0064] With this configuration, when the compression chamber 3011 and the variable-capacity connecting channel 10 are connected, the gas compressed to a certain extent in the compression chamber 3011 can flow out through the variable-capacity connecting channel 10, thereby achieving variable-capacity operation of the scroll compressor 100. When the compression chamber 3011 and the variable-capacity connecting channel 10 are disconnected, the gas in the compression chamber 3011 cannot flow into the variable-capacity connecting channel 10. The normal operation of the scroll compressor 100 can be achieved through the movement of the moving scroll plate 301. In addition, it is beneficial to improve the scroll compressor 100's resistance to liquid slugging, and at the same time, while ensuring the required variable-capacity, it reduces the impact of the clearance volume generated by the variable-capacity connecting channel 10 on the performance of the scroll compressor 100, so that the opening of the variable-capacity connecting channel 10 has minimal impact on the performance of the scroll compressor 100.

[0065] According to an embodiment of the present invention, the scroll compressor 100 can achieve variable capacity by providing a variable capacity connecting channel 10. Furthermore, this improves the scroll compressor 100's resistance to liquid slugging, and while ensuring the required variable capacity, reduces the impact of the clearance volume generated by the variable capacity connecting channel 10 on the performance of the scroll compressor 100, thus minimizing the impact of the variable capacity connecting channel 10 on the performance of the scroll compressor 100.

[0066] According to some embodiments of the present invention, in combination Figure 1 , Figure 5 and Figure 13 One end of the variable-capacity connecting channel 10 has an opening 101, which is formed on the side of the stationary vortex disk 2 facing the moving vortex disk 301. The moving vortex disk 301 is movable relative to the stationary vortex disk 1 to intermittently connect and disconnect the compression chamber 3011 and the opening 101.

[0067] For example, in Figure 1 , Figure 5 and Figure 13 In the example, the variable-capacity connecting channel 10 is formed inside the stationary scroll plate 1, and the variable-capacity connecting channel 10 is connected to the compression chamber 3011 through the opening 101. During the rotation of the moving scroll plate 301 relative to the stationary scroll plate 1, the change in position relative to the moving scroll plate 301 can open and close the opening 101, and allow for different degrees of opening. This configuration simplifies the structure of the stationary scroll plate 1, makes the opening 101 easy to manufacture, and allows the opening and closing of the opening 101 to be achieved through the movement of the moving scroll plate 301. This enables the variable-capacity connecting channel 10 to intermittently connect and disconnect from the compression chamber 3011, facilitating the variable-capacity control of the scroll compressor 100.

[0068] According to some embodiments of the present invention, in combination Figure 13 The opening 101 is configured to begin communicating with the compression chamber 3011 before the static scroll 1 and the moving scroll 301 finish meshing and intake.

[0069] For example, the stationary scroll plate 1 has stationary scroll teeth 141 on the side facing the moving scroll plate 301, and the moving scroll plate 301 has moving scroll teeth 3012 on the side facing the stationary scroll plate 1. The stationary scroll teeth 141 and the moving scroll teeth 3012 mesh and together define the compression chamber 3011. Before the end of intake, the stationary scroll plate 1 and the moving scroll plate 301 are engaged (e.g., the stationary scroll teeth 141 and the moving scroll teeth 3012 are engaged), including the following states: First, such as... Figure 13 As shown in state B, opening 101 is closed, isolating the variable displacement connecting channel 10 and the corresponding compression chamber 3011. Secondly, as... Figure 13 As shown in state C, opening 101 is partially open, connecting the variable-capacity connecting channel 10 to the corresponding compression chamber 3011. Therefore, opening 101 is positioned to begin connecting with the compression chamber 3011 before the end of suction for the scroll compressor 100. This allows the variable-capacity connecting channel 10 to be fully open at the moment suction ends on the suction side 151 (at which point the flow regulating device 201 is open), increasing the variable capacity. Furthermore, this improves the scroll compressor 100's resistance to liquid slugging, while minimizing the impact of the clearance volume generated by the radial variable-capacity channel 12 on the performance of the scroll compressor 100, thus minimizing the impact of the radial variable-capacity channel 12 on the performance of the scroll compressor 100.

[0070] Reference Figure 13 When the static vortex 1 engages with the moving vortex disk 301 and the intake is complete, the opening 101 and the compression chamber 3011 are fully connected. For example, as... Figure 13 As shown in state D, the intake of the scroll compressor 100 ends, the opening 101 is fully open, and the variable volume connecting channel 10 is connected to the compression chamber 3011 through the opening 101, with the connection opening at its maximum.

[0071] With this configuration, the variable displacement connecting channel 10 begins to discharge gas after the compression chamber 3011 finishes intake. Different variable displacement discharge volumes are achieved by controlling the opening degree of the solenoid valve or electronic expansion valve, thus realizing variable displacement. Furthermore, the radial variable displacement channel 12 of the variable displacement connecting channel 10 increases the pump body's resistance to liquid slugging. In addition, the reasonable positioning of the opening 101 ensures the gas discharge capacity of the scroll compressor 100 while also improving the working efficiency and performance of the scroll compressor 100.

[0072] According to some embodiments of the present invention, in combination Figure 13 The scroll compressor 100 has an intake side 151, which is intermittently connected to and isolated from the compression chamber 3011. When the connection between the intake side 151 and the compression chamber 3011 is at its maximum, the moving scroll teeth 3012 of the moving scroll disk 301 completely cover the opening 101 to isolate the opening 101 from the compression chamber 3011.

[0073] For example, in Figure 9 and Figure 13 In the example, the moving scroll plate 301 has a moving scroll tooth 3012 on the side facing the stationary scroll plate 1. The profile of the moving scroll tooth 3012 is close to or the same as the profile of the stationary scroll tooth 141. When the moving scroll plate 301 and the stationary scroll plate 1 are engaged, two compression chambers 3011 are formed symmetrical about the center of the exhaust port 102. The two compression chambers 3011 correspond to two variable displacement connecting channels 10 respectively. The opening 101 is formed in the extending direction of the stationary scroll tooth 141, and the opening 101 can be opened and closed by the movement of the moving scroll tooth 3012. That is, when the moving scroll tooth 3012 completely covers the pressure opening 101, it isolates the variable displacement connecting channel 10 and the corresponding compression chamber 3011; when the moving scroll tooth 3012 partially covers the opening 101, the variable displacement connecting channel 10 and the corresponding compression chamber 3011 are partially connected; and when the moving scroll tooth 3012 does not cover the opening 101, the variable displacement connecting channel 10 and the corresponding compression chamber 3011 are connected. Thus, while ensuring the normal operation of the moving scroll plate 301, the variable displacement connecting channel 10 can be connected and isolated from the corresponding compression chamber 3011 through the opening 101, without the need for additional structures or components. This simplifies the structure of the scroll compressor 100 and is more conducive to its production, processing, and use.

[0074] According to some embodiments of the present invention, the width of the opening 101 is less than or equal to the thickness at the corresponding position of the moving volute tooth 301. The width of the opening 101 is also its radial dimension in the stationary volute disk 1. Therefore, when the width of the opening 101 is equal to the thickness at the corresponding position of the moving volute tooth 3012 of the moving volute disk 301, the corresponding position of the moving volute tooth 3012 can just cover the opening 101 to isolate the connection between the compression chamber 3011 and the variable displacement connecting channel 10, thereby facilitating the adjustment of the connection opening between the variable displacement connecting channel 10 and the compression chamber 301. When the width of the variable displacement connecting channel 10 is less than the thickness at the corresponding position of the moving volute tooth 3012 of the moving volute disk 301, the precision requirement for the moving volute tooth 3012 to cover the variable displacement connecting channel 10 can be reduced, so that the moving volute tooth 3012 can completely cover the variable displacement connecting channel 10, thereby further facilitating the adjustment of the connection opening between the variable displacement connecting channel 10 and the radial variable displacement channel 12.

[0075] According to some optional embodiments of the present invention, refer to Figure 13 The moving scroll plate 301 and the stationary scroll plate 1 together define a plurality of secondary compression chambers 309. The secondary compression chambers 309 are formed on the side of the compression chamber 3011 near the center of the stationary scroll plate 1. During the operation of the scroll compressor 100, the compression chamber 3011 and the secondary compression chambers 309 are never in communication with each other. In the description of this invention, "a plurality of" means two or more.

[0076] For example, in Figure 13 In the example, the moving scroll plate 301 and the stationary scroll plate 1 together define two secondary compression chambers 309, which are symmetrical about the exhaust port 102 located in the middle of the stationary scroll plate 1. Thus, by ensuring that the compression chamber 3011 and the secondary compression chambers 309 are always not connected, air leakage between them is prevented. Furthermore, when the radial variable displacement channel 12 is separated from the compression chamber 3011, air leakage between the compression chamber 3011 and the secondary compression chamber 309 through the axial variable displacement communication slot 11 will also be prevented, ensuring the normal operation of the scroll compressor 100. For example, the scroll compressor 100 has an inlet 303 and an exhaust port 304, with the exhaust port 304 located near the flow regulating device 201.

[0077] According to some embodiments of the present invention, the length of the opening 101 is less than the extension length of the compression chamber 3011 when the intake side 151 is separated from the compression chamber 3011. That is, the length of the opening 101 is less than the closed length of the compression chamber 3011 when the moving scroll tooth 3012 of the moving scroll disk 300 and the stationary scroll tooth 141 of the stationary scroll disk 1 are engaged. With this configuration, the compression chamber 3011 and the secondary compression chamber 309 are always not in communication with each other, so as to prevent air leakage between the compression chamber 3011 and the secondary compression chamber 309. Furthermore, when the variable displacement communication channel 10 is separated from the compression chamber 3011, the compression chamber 3011 and the secondary compression chamber 309 will not leak air through the axial variable displacement communication slot 11 of the compression chamber, thereby ensuring the normal operation of the scroll compressor 100.

[0078] According to some embodiments of the present invention, in combination Figure 1 and Figure 5 There are multiple variable displacement connecting channels 10. Each variable displacement connecting channel 10 includes an axial variable displacement connecting slot 11 for the compression chamber and a radial variable displacement channel 12. The axial variable displacement connecting slot 11 for the compression chamber is formed on the side of the stationary scroll plate 1 facing the moving scroll plate 301. The axial variable displacement connecting slot 11 for the compression chamber is connected to the compression chamber 3011 through the opening 101. At least one variable displacement exhaust channel 13 is formed on the stationary scroll plate 1. The axial variable displacement connecting slots 11 for the compression chamber of the multiple variable displacement connecting channels 10 are connected to the variable displacement exhaust channel 13 through the corresponding radial variable displacement channel 12.

[0079] For example, in Figure 1 and Figure 5In the example, two variable displacement connecting channels 10 are provided. Each variable displacement connecting channel 10 includes an axial variable displacement connecting slot 11 for the compression chamber and a radial variable displacement channel 12. One side of the axial variable displacement connecting slot 11 is an opening 101, and the other side of the axial variable displacement connecting slot 11 is connected to one end of the radial variable displacement channel 12. The other end of the radial variable displacement channel 12 is connected to the variable displacement exhaust channel 13. The axial variable displacement connecting slot 11 extends along the axial direction of the stationary vortex disk 1, and one side of the axial variable displacement connecting slot 11 penetrates the bottom wall of the stationary vortex groove 14. Two compression chambers 3011 are also provided, each of which is connected to the variable displacement exhaust channel 13 via the corresponding axial variable displacement connecting slot 11 and radial variable displacement channel 12 of the variable displacement connecting channel 10.

[0080] This design simplifies the structure of the stationary scroll plate 1, reduces manufacturing difficulty, and facilitates its production, processing, and use. When the stationary scroll plate 1 is used in the scroll compressor 100, it cooperates with the moving scroll plate 301. During unloading of the scroll compressor 100 (i.e., adjusting the compression of the scroll compressor 100), a portion of the compressed gas can flow into the radial variable displacement channel 12 through the axial variable displacement connecting slot 11 of the compression chamber, and then flow into the variable displacement exhaust channel 13 to adjust the compression of the scroll compressor 100, thereby improving the use of the scroll compressor 100.

[0081] According to some embodiments of the present invention, in combination Figure 1 and Figure 5 Multiple variable-capacity connecting channels 10 are radially symmetrical about the stationary vortex disk 1. For example, in Figure 1 and Figure 5 In the example, the two axial displacement connecting slots 11 of the compression chambers are arranged radially symmetrically or nearly symmetrically about the stationary vortex disk 1, and the two radial displacement channels 12 are also radially symmetrical about the stationary vortex disk 1. Furthermore, the two axial displacement connecting slots 11 of the compression chambers are formed between the center and the edge of the stationary vortex disk 1. It should be noted that the aforementioned "nearly symmetrical" means that when one or more of the axial displacement connecting slots 11 of the compression chambers are deflected, the axial displacement connecting slots 11 of the compression chambers are nearly symmetrical. Specifically, when the angle of deflection is between 0° and 30°, it can be considered as nearly symmetrical as described in this application.

[0082] Therefore, by setting multiple axial variable displacement connecting slots 11 and multiple radial variable displacement channels 12 with radial symmetry about the stationary scroll plate 1, on the one hand, the compression state of the compressed gas flowing out of the multiple axial variable displacement connecting slots 11 is approximately the same, thereby making the compression state of the multiple compression chambers 3011 of the scroll compressor 100 approximately the same, which is beneficial to the use of the scroll compressor 100. On the other hand, the lengths of the multiple radial variable displacement channels 12 are close or exactly the same, the flow resistance of the gas in the multiple radial variable displacement channels 12 is equal or close, and the pressure difference in the multiple radial variable displacement channels 12 is small, thereby making the force on the moving scroll plate 301 that cooperates with the stationary scroll plate 1 more balanced, thus improving the operating stability of the moving scroll plate 301 and enhancing the reliability of the scroll compressor 100.

[0083] According to some embodiments of the present invention, a static scroll groove 14 is formed on the side surface of the static scroll disk 1 facing the moving scroll disk 301. A static scroll tooth 141 is provided on the bottom wall of the static scroll groove 14. A static scroll cavity 15 is defined between the static scroll tooth 141 and the inner wall of the static scroll groove 14. The static scroll cavity 15 and the moving scroll disk 301 together define a compression cavity 3011. The scroll compressor 100 has an intake side 151. The intake side 151 is intermittently connected to and separated from the compression cavity 3011. The variable displacement exhaust passage 13 is connected to the intake side 151.

[0084] For example, in Figure 1 and Figure 6 In the example, the thickness direction of the static vortex disk 1 (e.g.) Figure 3A stationary vortex groove 14 is formed on one side surface of the stationary vortex disk 1 (in the front-back direction). The stationary vortex groove 14 and the axial variable displacement connecting slot 11 of the compression chamber are formed on the same side surface of the stationary vortex disk 1. When the stationary vortex disk 1 is engaged with the moving vortex disk 301, the moving vortex disk 301 is engaged on the side where the stationary vortex groove 14 of the stationary vortex disk 1 is located. The stationary vortex teeth 141 extend in a vortex shape on the stationary vortex disk 1. A vortex-shaped stationary vortex cavity 15 is defined between the stationary vortex teeth 141 and the inner peripheral wall of the stationary vortex groove 14. One end of the stationary vortex cavity 15 adjacent to the edge of the stationary vortex disk 1 is the suction side 151 of the scroll compressor 100, and the other end of the stationary vortex cavity 15 adjacent to the center of the stationary vortex disk 1 is the exhaust side 152. The gas flowing into the stationary vortex cavity 15 from the suction side 151 is compressed under the movement of the moving vortex disk 301, and the compressed high-pressure gas can be discharged from the exhaust side 152. By connecting the variable displacement exhaust passage 13 to the intake side 151, a portion of the compressed gas discharged during unloading of the scroll compressor 100 can be recycled. That is, during the unloading process of the scroll compressor 100, the gas flowing from the compressor's variable displacement connecting hole to the variable displacement exhaust passage 13 can flow back to the stationary scroll chamber 15 via the intake side 151 for recycling, thus improving gas utilization. Furthermore, it also facilitates gas flow between the stationary scroll chamber 15, the opening, the axial variable displacement connecting slot 11 of the compression chamber, the radial variable displacement passage 12, and the variable displacement exhaust passage 13, thereby benefiting the use of the stationary scroll plate 1 and the scroll compressor 100.

[0085] For example, in Figure 13 In the example, Figure 13 In this context, B represents the state where the compression chamber 3011 and the corresponding axial displacement connecting slot 11 are completely isolated. At this time, the upper and lower sides of the stationary scroll plate 1 are the inlet ends of the two compression chambers 3011, and the intake side 151 is connected to the compression chamber 3011. Gas can flow into the compression chamber 3011 and will not flow out from the axial displacement connecting slot 11. When the moving scroll plate 301 rotates to... Figure 13 When C is reached, the connectivity between the intake side 151 and the compression chamber 3011 decreases, and simultaneously, the compression chamber 3011 and the corresponding axial displacement connecting slot 11 are partially connected, meaning the axial displacement connecting slot 11 is partially open, allowing gas in the compression chamber 3011 to flow out through the axial displacement connecting slot 11. When the moving scroll plate 301 rotates to... Figure 13In step D, the intake side 151 is isolated from the compression chamber 3011, and the axial variable displacement connecting slot 11 of the compression chamber is connected to the corresponding compression chamber 3011, with the axial variable displacement connecting slot 11 of the compression chamber fully open. That is to say, during the process of gas compression in the compression chamber 3011, as the opening degree of the connection between the intake side 151 and the compression chamber 3011 gradually decreases, the axial variable displacement connecting slot 11 of the compression chamber gradually opens, so that the intake side 151 can start to exhaust gas when the intake ends, and the different variable displacement exhaust volumes of the scroll compressor 100 can be achieved by controlling the opening degree of the solenoid valve or electronic expansion valve, thereby realizing variable displacement.

[0086] For example, Figure 13 B, C, D, E, F, and G in the diagram represent the different states of the moving scroll disk 301 as it rotates clockwise to different positions on the stationary scroll disk 1. When the moving scroll disk 301 moves from... Figure 13 When D continues to move to E, the axial variable displacement connecting slot 11 of the compression chamber is fully open, and the scroll compressor 100 is in the variable displacement exhaust state. When the moving scroll plate 301 moves from... Figure 13 As E continues to move to F, opening 101 gradually closes, and the scroll compressor 100 remains in a variable displacement exhaust state. When the moving scroll plate 301 moves from... Figure 13 When F continues to move to G, opening 101 closes, the variable displacement exhaust ends, and at the same time, the opening degree of the connection between the intake side 151 and the compression chamber 3011 gradually increases to return to normal. Figure 13 In section B, the compression chamber 3011 is connected to the intake side 151, entering the next cycle. The moving scroll plate 301 reciprocates as described above to achieve variable displacement and gas compression of the scroll compressor 100.

[0087] According to some embodiments of the present invention, before the intake of the compression chamber 3011 ends, the axial variable displacement connecting slot 11 of the compression chamber and the corresponding compression chamber 3011 are partially opened and connected. That is, before the intake of the compression chamber 3011 ends, at most a portion of the axial variable displacement connecting slot 11 of the compression chamber is connected to the corresponding compression chamber 3011. Here, the connection of at most a portion of the axial variable displacement connecting slot 11 of the compression chamber and the corresponding compression chamber 3011 can be: when the intake side 151 of the scroll compressor 100 is connected to the compression chamber 3011 and the connection opening is at its maximum, the axial variable displacement connecting slot 11 of the compression chamber and the corresponding compression chamber 3011 are disconnected. Alternatively, when the intake side 151 of the scroll compressor 100 is connected to the compression chamber 3011 and the connection opening is not at its maximum, a portion of the axial variable displacement connecting slot 11 of the compression chamber is connected to the corresponding compression chamber 3011. When the intake of the compression chamber 3011 ends, the axial variable displacement connecting slot 11 of the compression chamber is fully opened and connected to begin the variable displacement exhaust of the compressor 300.

[0088] For example, in Figure 13In the example, the compression chamber 3011 includes two states before the intake ends, state one is... Figure 13 In state B, the axial variable displacement connecting slot 11 of the compression chamber and the corresponding compression chamber 3011 are completely isolated, that is, the intake side 151 of the stationary vortex disk 1 is connected to the compression chamber 3011 and the connection opening is at its maximum. State two is... Figure 13 In the case of C, at this time the axial variable displacement connecting slot 11 of the compression chamber is partially connected to the corresponding compression chamber 3011, that is, the axial variable displacement connecting slot 11 of the compression chamber is partially open. Figure 13 In the text, D represents the state where the axial variable displacement connecting slot 11 of the compression chamber is fully open when the intake of the compression chamber 3011 ends, which is also the state when the variable displacement exhaust begins.

[0089] Therefore, the radial variable displacement channel 12 begins to exhaust gas after the compression chamber 3011 finishes intake, and different variable displacement exhaust volumes are achieved by controlling the opening degree of the solenoid valve or electronic expansion valve, thereby realizing the variable displacement of the scroll compressor 100. Furthermore, the aforementioned radial variable displacement channel 12 can increase the pump body's resistance to liquid slugging. Moreover, the exhaust displacement can be initiated by the pressure difference generated by compression, which facilitates the flow of gas in the compression chamber 3011 into the radial variable displacement channel 12.

[0090] According to some embodiments of the present invention, with reference to Figure 1 , Figure 5 and Figure 6 One end of the variable displacement exhaust passage 13 is connected to the radial variable displacement passage 12, and the other end of the variable displacement exhaust passage 13 penetrates the bottom wall of the static vortex groove 14 and is connected to the intake side 151. For example, in Figure 1 , Figure 5 and Figure 6 In the example, the end of the variable displacement exhaust channel 13 furthest from the stationary vortex cavity 15 is connected to the radial variable displacement channel 12, and the end of the variable displacement exhaust channel 13 adjacent to the stationary vortex cavity 15 extends to the stationary vortex groove 14 and penetrates the bottom wall of the stationary vortex groove 14. This configuration simplifies the structure of the variable displacement exhaust channel 13, facilitates its production, and reduces the processing difficulty of the stationary vortex disk 1. Furthermore, it eliminates the need for additional components, simplifying the structure of the stationary vortex disk 1 and facilitating the return of gas from the radial variable displacement channel 12 to the compression chamber 3011, thus simplifying the flow path and ensuring smoother flow.

[0091] According to some embodiments of the invention, the other end of the variable displacement exhaust passage 13 is adjacent to the intake side 151. For example, in Figure 1In the example, the intake side 151 is located above the stationary scroll plate 1, and the other end of the variable displacement exhaust channel 13 is located close to the intake side 151. This shortens the gas flow path between the other end of the variable displacement exhaust channel 13 and the intake side, allowing the gas flowing out of the variable displacement exhaust channel 13 to smoothly flow from the intake side 151 into the stationary scroll chamber 15. This facilitates gas flow on the stationary scroll plate 1, and consequently, improves the operation of the scroll compressor 100.

[0092] According to some embodiments of the present invention, in combination Figure 6 The variable displacement exhaust passage 13 extends along the axial direction of the stationary vortex disk 1. For example, in Figure 6 In the example, the other end of the variable displacement exhaust channel 13 extends through the bottom wall of the static vortex groove 14 along the thickness direction of the static vortex disk 1. This arrangement shortens the length of the variable displacement exhaust channel 13, thereby shortening the flow path of the gas flowing out from the radial variable displacement channel 12 within the variable displacement exhaust channel 13, which is beneficial for the circulation of gas within the static vortex disk 1, thus making the use of the static vortex disk 1 more advantageous.

[0093] According to some embodiments of the present invention, in combination Figure 6 Multiple variable displacement connecting channels 10 are located between the stationary vortex groove 14 and the other side surface of the stationary vortex disk 1. That is, multiple axial variable displacement connecting slots 11 and multiple radial variable displacement channels 12 are located between the stationary vortex groove 14 and the other side surface of the stationary vortex disk 1. For example, the other side surface of the stationary vortex disk 1 refers to the side surface of the stationary vortex disk 1 away from the stationary vortex groove 14 in the thickness direction. The radial variable displacement channels 12 are formed inside the stationary vortex disk 1, and the axial variable displacement connecting slots 11 penetrate the bottom wall of the stationary vortex groove 14. This arrangement rationally utilizes the internal space of the stationary vortex disk 1, and the layout of the axial variable displacement connecting slots 11, radial variable displacement channels 12, and variable displacement exhaust channels 13 is reasonable, which is beneficial to the flow and circulation of gas on the stationary vortex disk 1, thereby facilitating the normal use of the stationary vortex disk 1.

[0094] According to some embodiments of the present invention, with reference to Figure 1 , Figure 5 and Figure 6 The stationary scroll plate 1 has at least one flow regulating device mounting hole 16, which connects the radial variable displacement channel 12 and the variable displacement exhaust channel 13. The scroll compressor 100 further includes at least one flow regulating device 201, at least a portion of which is disposed within the flow regulating device mounting hole 16. The flow regulating device 201 is used to adjust the opening degree of the connection between the radial variable displacement channel 12 and the variable displacement exhaust channel 13.

[0095] In other words, multiple radial variable displacement channels 12 are connected to the variable displacement exhaust channel 13 through the flow regulating device mounting hole 16. With this configuration, the flow regulating device mounting hole 16 can be used to install the flow regulating device 201 of the stationary scroll assembly 200. That is, the gas in the radial variable displacement channel 12 flows to the variable displacement exhaust channel 13 after passing through the flow regulating device 201, so as to adjust the connection opening between the radial variable displacement channel 12 and the variable displacement exhaust channel 13 through the flow regulating device 201, thereby adjusting the variable capacity of the scroll compressor 100.

[0096] For example, in Figure 8 and Figure 9 In the example, the flow regulating device 201 is installed in the flow regulating device mounting hole 16 on the stationary scroll plate 1. One end of the axial variable displacement communication slot 11 of the plurality of radial variable displacement channels 12 away from the compression chamber is connected to the flow regulating device 201 in a way that can be switched on and off. Thus, the flow regulating device 201 can open or close the communication between the variable displacement exhaust channel 13 and the radial variable displacement channel 12. When the scroll compressor 100 needs to unload, the flow regulating device 201 opens the communication between the variable displacement exhaust channel 13 and the radial variable displacement channel 12 so that the gas flowing out from the axial variable displacement communication slot 11 of the compression chamber can flow into the variable displacement exhaust channel 13 to regulate the compression of the scroll compressor 100. When the scroll compressor 100 needs to operate at full load, the flow regulating device 201 closes the communication between the variable displacement exhaust channel 13 and the radial variable displacement channel 12. Furthermore, the flow regulating device 201 can adjust the connection opening between the radial variable capacity channel 12 and the variable capacity exhaust channel 13 to adjust the variable capacity of the scroll compressor 100, thereby enabling the scroll compressor 100 to meet different usage requirements, improving the performance of the scroll compressor 100, and also increasing the working efficiency of the scroll compressor 100.

[0097] According to some embodiments of the present invention, in combination Figure 8 At least one seal 202 is provided between the flow regulating device 201 and the inner wall of the flow regulating device mounting hole 16 of the stationary vortex disk 1. For example, in Figure 8In the example, two seals 202 are provided between the outer peripheral surface of the flow regulating device 201 and the inner wall surface of the flow regulating device mounting hole 16, and the two seals 202 are arranged at intervals along the axial direction of the flow regulating device 201. This arrangement allows the seals 202 to seal the gap between the flow regulating device 201 and the flow regulating device mounting hole 16, preventing gas flowing from the radial variable displacement channel 12 from flowing through the gap between the flow regulating device 201 and the flow regulating device mounting hole 16 to the outside of the stationary vortex disk 1. This improves the sealing performance between the flow regulating device 201 and the stationary vortex disk 1, reduces gas leakage, and allows the gas to flow smoothly back into the variable displacement exhaust channel 13. It should be noted that the number of seals 202 and the arrangement of the seals 202 can be customized according to actual application requirements to better meet practical needs.

[0098] According to some embodiments of the present invention, the flow regulating device 201 is a solenoid valve or an electronic expansion valve. Therefore, on the one hand, by setting a solenoid valve or electronic expansion valve, the connection opening between the radial variable capacity channel 12 and the variable capacity exhaust channel 13 can be controlled more precisely according to usage requirements, enabling accurate variable capacity control and improving the accuracy of variable capacity control of the scroll compressor 100. This improves the control accuracy of the variable capacity of the scroll compressor 100. On the other hand, the solenoid valve or electronic expansion valve has a simple structure and is easy to use. It eliminates the need for other external components or pipelines on the stationary scroll plate 1 to control the connection opening, simplifying the structure of the scroll compressor 100 and making it more compact, which is more conducive to the processing and use of the scroll compressor 100. Optionally, a power drive head (not shown) is installed around the solenoid valve or electronic expansion valve, and it is connected to the control system via CAM communication or LINK communication to control the opening of the solenoid valve or electronic expansion valve.

[0099] According to some embodiments of the present invention, one end of the flow regulating device mounting hole 16 is connected to the variable displacement exhaust channel 13, the radial variable displacement channel 12 is connected to the side wall of the flow regulating device mounting hole 16, and the other end of the flow regulating device mounting hole 16 penetrates the outer peripheral surface of the stationary vortex disk 1.

[0100] For example, in Figure 5In the example, the lower end of the flow regulating device mounting hole 16 is connected to the variable displacement exhaust channel 13, and the two radial variable displacement channels 12 are respectively connected to the side wall of the flow regulating device mounting hole 16, so that the radial variable displacement channels 12 can communicate with the flow regulating device mounting hole 16. The upper end of the flow regulating device mounting hole 16 penetrates the top surface of the stationary vortex disk 1, thereby allowing the flow regulating device 201 to be installed in the flow regulating device mounting hole 16 from the upper end, which facilitates the rapid installation of the flow regulating device 201 and also saves the space occupied by the flow regulating device mounting hole 16 on the stationary vortex disk 1. For example, in Figure 8 In the example, the lower part of the flow regulating device 201 is installed in the flow regulating device mounting hole 16, and the upper part of the flow regulating device 201 extends to the outer side of the stationary vortex disk 1. Optionally, the inner wall of the flow regulating device mounting hole 16 is provided with threads for connecting and installing the flow regulating device 201, which facilitates the quick installation of the flow regulating device 201 and simplifies the installation operation.

[0101] According to some embodiments of the present invention, in combination Figure 5 One end of each of the multiple radial variable displacement channels 12 is connected to a multiple axial variable displacement connecting slot 11 of the compression chamber, and the other end of each radial variable displacement channel 12 is connected to a variable displacement exhaust channel 13. For example, in Figure 5 In the example, the lower ends of the multiple radial variable displacement channels 12 are respectively connected to the corresponding axial variable displacement connecting slots 11 of the compression chamber, and the upper ends of the multiple radial variable displacement channels 12 are all connected to the variable displacement exhaust channels 13. The flow path of the gas flowing from the axial variable displacement connecting slots 11 of the compression chamber to the radial variable displacement channels 12 is indicated by arrow A in the figure. The multiple axial variable displacement connecting slots 11 of the compression chamber and the multiple radial variable displacement channels 12 are symmetrical or nearly symmetrical about the first radial line 18 of the stationary vortex disk 1. The line connecting one end of the multiple radial variable displacement channels 12 forms the second radial line 19 of the stationary vortex disk 1. The second radial line 19 is perpendicular or nearly perpendicular to the first radial line 18.

[0102] It should be noted that the aforementioned "nearly perpendicular" refers to the angle between the second radial line 19 and the first radial line 18 being close to 90°. Specifically, when the angle between the second radial line 19 and the first radial line 18 is 70° to 110°, it can be considered as nearly perpendicular as described in this application.

[0103] For example, in Figure 5In the example, the two axial variable displacement connecting slots 11 of the two compression chambers and the two radial variable displacement channels 12 are symmetrically arranged about the first radial line 18 in the vertical direction about the stationary scroll plate 1. The line connecting the lower ends of the two radial variable displacement channels 12 forms a second radial line 19 extending in the horizontal direction. With this arrangement, the lower ends of the two radial variable displacement channels 12 are located on both sides of the center of the stationary scroll plate 1, and the two radial variable displacement channels 12 are located on both sides of the first radial line 18. The two radial variable displacement channels 12 have the same length, so that the flow resistance of the gas in the two radial variable displacement channels 12 is the same and the pressure difference is small. When the stationary scroll plate 1 and the moving scroll plate 301 cooperate, the forces on the moving scroll plate 301 are more balanced during the movement, which further improves the operating stability of the moving scroll plate 301, thereby improving the reliability of the cooperation between the stationary scroll plate 1 and the moving scroll plate 301 and improving the performance of the scroll compressor 100.

[0104] Optionally, the axial variable displacement connecting slot 11 of the compression chamber includes one or more sub-connecting slots (not shown in the figure), and the cross-sectional shape of the sub-connecting slots is circular, elliptical, oblong, waist-shaped, arc-shaped, or polygonal. For example, when the axial variable displacement connecting slot 11 of the compression chamber includes one sub-connecting slot, the sub-connecting slot extends along the extension direction of the stationary vortex tooth 141. When the axial variable displacement connecting slot 11 of the compression chamber includes multiple sub-connecting slots, the multiple sub-connecting slots can be arranged along the extension direction of the stationary vortex tooth 141, and the shapes of the multiple sub-connecting slots can be the same or different. For example, the shapes of the multiple sub-connecting slots can all be set to circular or oblong, or one of the sub-connecting slots may have a different shape than the other sub-connecting slots, or the shapes of the multiple sub-connecting slots may all be different; no specific limitation is made here. Therefore, by setting multiple sub-connecting slots, during the rotation of the moving scroll plate 301 relative to the stationary scroll plate 1, the connection state between the stationary scroll cavity 15 and the radial variable displacement channel 12 can be adjusted by regulating the connection state between the multiple sub-connecting slots and the radial variable displacement channel 12, thereby better regulating the use of the stationary scroll plate 1 and thus more facilitating the regulation and use of the scroll compressor 100. Furthermore, the richness of the sub-connecting slots is increased, and the shape of the sub-connecting slots can be set according to actual use to better meet practical applications. For example, the arc shape can be a circular arc, a semi-circular shape, or a semi-elliptical shape. And / or, the polygon shape can be a trapezoid, rectangle, parallelogram, rhombus, or triangle. This increases the richness of the sub-connecting slots, and the shape of the sub-connecting slots can be set according to actual use. However, it is not limited to this.

[0105] According to some embodiments of the present invention, there is one variable displacement exhaust channel 13, and the plurality of axial variable displacement connecting slots 11 and the plurality of radial variable displacement channels 12 are symmetrical or nearly symmetrical about the variable displacement exhaust channel 13. Alternatively, there are multiple variable displacement exhaust channels 13, and the plurality of axial variable displacement connecting slots 11, the plurality of radial variable displacement channels 12 and the plurality of variable displacement exhaust channels 13 are radially symmetrical or nearly symmetrical about the stationary vortex disk 1.

[0106] For example, in Figures 1-6 In the example, a single variable displacement exhaust channel 13 is provided, with two axial variable displacement connecting slots 11 in the two compression chambers and two radial variable displacement channels 12 symmetrically arranged about the variable displacement exhaust channel 13. This arrangement ensures that the gas flowing from the axial variable displacement connecting slots 11 through the radial variable displacement channels 12 to the variable displacement exhaust channel 13 travels approximately the same distance, and the gas flow paths within the two radial variable displacement channels 12 are also shorter, thus facilitating gas flow. Furthermore, it reduces the space occupied by the variable displacement exhaust channel 13 on the stationary scroll plate 1, thereby reducing the machining difficulty of the stationary scroll plate 1 and improving its machining efficiency.

[0107] For example, when two variable displacement exhaust channels 13 are provided, the two compression chambers are axially connected by variable displacement slots 11, the two radial variable displacement channels 12, and the two variable displacement exhaust channels 13 are radially symmetrical about the stationary scroll plate 1, and both variable displacement exhaust channels 13 are connected to the intake side 151. Thus, the gas flowing through the two radial variable displacement channels 12 returns to the intake side 151 via the corresponding variable displacement exhaust channels 13. The lengths of the two radial variable displacement channels 12 and the two variable displacement exhaust channels 13 are similar, so that the gas flow resistance within the two radial variable displacement channels 12 is similar, which is more conducive to the stable operation of the moving scroll plate 301. Furthermore, the two variable displacement exhaust channels 13 are independent of each other and do not affect each other, which is more conducive to the smooth return of gas to the intake side 151.

[0108] Optionally, combined Figure 1 Multiple pressure relief holes 17 are formed on the stationary scroll plate 1, and the multiple pressure relief holes 17 are arranged at intervals along the extension direction of the stationary scroll teeth 141. In this way, overcompression caused by excessive geometric compression ratio due to excessive effective profile length when the scroll compressor 100 is fully loaded is avoided, and the compression efficiency of the scroll compressor 100 is improved.

[0109] According to some embodiments of the present invention, in combination Figure 9 and Figure 13 The moving scroll plate 301 and the stationary scroll plate 1 together define multiple compression chambers 3011. The multiple compression chambers 3011 and the multiple compression chamber axial variable displacement connecting slots 11 of the stationary scroll plate 1 correspond to each other. The moving scroll plate 301 can move relative to the stationary scroll plate 1 to gap connect and disconnect the compression chambers 3011 and the corresponding compression chamber axial variable displacement connecting slots 11.

[0110] For example, in Figure 9 and Figure 13 In the example, the moving scroll plate 301 is fitted to one side of the stationary scroll plate 1 where the stationary scroll groove 14 is located. The moving scroll plate 301 and the stationary scroll plate 1 together define two compression chambers 3011. The two compression chambers 3011 are symmetrically arranged about the center of the exhaust port 102 of the stationary scroll plate 1. The exhaust port 102 is formed at the center of the stationary scroll plate 1. The two compression chambers 3011 and the two axial displacement connecting slots 11 of the compression chambers correspond one-to-one. The moving scroll plate 301 can rotate to connect and disconnect the compression chambers 3011 and the corresponding axial displacement connecting slots 11 of the compression chambers. For example, Figure 13 In the diagram, B represents the state where the compression chamber 3011 and the corresponding axial variable displacement connecting slot 11 of the compression chamber are separated. When the moving scroll plate 301 rotates clockwise to... Figure 13 In step D, the compression chamber 3011 and the corresponding axial variable displacement connecting slot 11 are fully connected. When the moving scroll plate 301 continues to rotate clockwise to... Figure 13 In G, the compression chamber 3011 and the corresponding axial variable displacement connecting slot 11 of the compression chamber are completely isolated.

[0111] With this configuration, when the compression chamber 3011 and the corresponding axial displacement-changing connecting slot 11 are connected, the gas compressed to a certain extent in the compression chamber 3011 can flow through the axial displacement-changing connecting slot 11 to the radial displacement-changing channel 12. Furthermore, when the flow regulating device 201 is open, the gas can flow sequentially through the flow regulating device 201 and the displacement-changing exhaust channel 13 back to the intake side 151, thus achieving displacement change in the scroll compressor 100. When the compression chamber 3011 and the corresponding axial displacement-changing connecting slot 11 are disconnected, the gas in the compression chamber 3011 cannot flow into the axial displacement-changing connecting slot 11. The movement of the moving scroll plate 301 enables the normal operation of the scroll compressor 100, and the similar operating states of the two compression chambers 3011 further facilitate the stable operation of the moving scroll plate 301.

[0112] Optionally, combined Figure 9 The stationary scroll plate 1 can be configured to be compatible with the housing structure. The stationary scroll plate 1 is attached to the housing 302 of the scroll compressor 100 by screws 3023, which simplifies the structure of the scroll compressor 100 and facilitates the assembly of the scroll compressor 100, thereby improving the assembly efficiency.

[0113] According to some optional embodiments of the present invention, in combination Figure 9The casing 302 of the scroll compressor 100 includes a front cover assembly 3021 and a rear cover assembly 3022. The front cover assembly 3021 is connected to the stationary scroll plate 1 by screws 3023. The front cover assembly 3021 and the rear cover assembly 3022 are axially opposite each other along the scroll compressor 100. A support assembly 305 is provided between the front cover assembly 3021 and the rear cover assembly 3022. A moving scroll plate 301 is provided between the support assembly 305 and the stationary scroll plate 1. A crankshaft 308 is provided between the support assembly 305 and the rear cover assembly 3022. A stator assembly 306 and a rotor assembly 307 are provided on the outer periphery of the crankshaft 308. Thus, the rotor assembly 307 can drive the crankshaft 308 to rotate, thereby driving the moving scroll plate 301 to rotate, ensuring the normal operation of the scroll compressor 100.

[0114] A thermal management system (not shown) according to a second aspect embodiment of the present invention includes a scroll compressor 100 as described in the first aspect embodiment above.

[0115] According to an embodiment of the present invention, the thermal management system improves its performance by employing the scroll compressor 100 described above.

[0116] Other configurations and operations of the scroll compressor 100 and thermal management system according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0117] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0118] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0119] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A scroll compressor, characterized in that, include: Moving vortex disk; A stationary vortex disk and a moving vortex disk together define a compression chamber. The stationary vortex disk has a variable-capacity connecting channel. The moving vortex disk is movable relative to the stationary vortex disk to intermittently connect and disconnect the compression chamber and the variable-capacity connecting channel.

2. The scroll compressor according to claim 1, characterized in that, One end of the variable-capacity connecting channel has an opening formed on the side of the stationary vortex disk facing the moving vortex disk. The moving vortex disk is movable relative to the stationary vortex disk to intermittently connect and disconnect the compression chamber and the opening.

3. The scroll compressor according to claim 2, characterized in that, The opening is configured to begin communicating with the compression chamber before the static scroll plate and the moving scroll plate finish engaging and drawing air.

4. The scroll compressor according to claim 3, characterized in that, When the static scroll plate and the moving scroll plate finish engaging and drawing air, the opening and the compression chamber are fully connected.

5. The scroll compressor according to claim 2, characterized in that, The scroll compressor has an intake side, which is intermittently connected to and disconnected from the compression chamber. When the connection between the intake side and the compression chamber is at its maximum, the moving scroll teeth of the moving scroll disk completely cover the opening to disconnect the opening from the compression chamber.

6. The scroll compressor according to claim 5, characterized in that, The width of the opening is less than or equal to the thickness at the corresponding position of the moving vortex tooth.

7. The scroll compressor according to claim 5, characterized in that, The length of the opening is less than the extension length of the compression chamber when the intake side is separated from the compression chamber.

8. The scroll compressor according to any one of claims 1-7, characterized in that, The variable displacement connecting channels are multiple, and each variable displacement connecting channel includes an axial variable displacement connecting slot for the compression chamber and a radial variable displacement channel. The axial variable displacement connecting slot for the compression chamber is formed on the side of the stationary scroll facing the moving scroll. The axial variable displacement connecting slot for the compression chamber is connected to the compression chamber through the opening. At least one variable displacement exhaust channel is formed on the stationary scroll. The axial variable displacement connecting slots for the compression chamber of the multiple variable displacement connecting channels are respectively connected to the variable displacement exhaust channel through the corresponding radial variable displacement channel.

9. The scroll compressor according to claim 8, characterized in that, The plurality of variable-capacity connecting channels are radially symmetrical about the static vortex disk.

10. The scroll compressor according to claim 9, characterized in that, A static scroll groove is formed on the surface of the static scroll disk facing the moving scroll disk. Static scroll teeth are provided on the bottom wall of the static scroll groove. A static scroll cavity is defined between the static scroll teeth and the inner wall of the static scroll groove. The static scroll cavity and the moving scroll disk together define the compression cavity. The scroll compressor has an intake side. The intake side is intermittently connected to and isolated from the compression cavity. The variable displacement exhaust channel is connected to the intake side.

11. The scroll compressor according to claim 10, characterized in that, One end of the variable displacement exhaust channel is connected to the radial variable displacement channel, and the other end of the variable displacement exhaust channel penetrates the bottom wall of the static vortex groove and is connected to the intake side.

12. The scroll compressor according to claim 11, characterized in that, The other end of the variable displacement exhaust channel is adjacent to the intake side.

13. The scroll compressor according to claim 10, characterized in that, The variable displacement exhaust channel extends along the axial direction of the stationary vortex disk.

14. The scroll compressor according to claim 10, characterized in that, Multiple variable-capacity connecting channels are located between the static vortex groove and the other side surface of the static vortex disk.

15. The scroll compressor according to claim 8, characterized in that, At least one flow regulating device mounting hole is formed on the stationary scroll plate, the flow regulating device mounting hole being connected between the radial variable displacement channel and the variable displacement exhaust channel, and the scroll compressor further includes: At least one flow regulating device, at least a portion of which is disposed within the flow regulating device mounting hole, the flow regulating device being used to adjust the connection opening between the radial variable displacement channel and the variable displacement exhaust channel.

16. The scroll compressor according to claim 15, characterized in that, At least one sealing element is provided between the flow regulating device and the inner wall of the flow regulating device mounting hole.

17. The scroll compressor according to claim 15, characterized in that, The flow regulating device is a solenoid valve or an electronic expansion valve.

18. The scroll compressor according to claim 15, characterized in that, One end of the flow regulating device mounting hole is connected to the variable displacement exhaust channel, the radial variable displacement channel is connected to the side wall of the flow regulating device mounting hole, and the other end of the flow regulating device mounting hole penetrates the outer peripheral surface of the stationary vortex disk.

19. The scroll compressor according to claim 15, characterized in that, One end of each of the plurality of radial variable displacement channels is connected to the axial variable displacement connecting slot of each of the plurality of compression chambers, and the other end of each of the plurality of radial variable displacement channels is connected to the variable displacement exhaust channel; The plurality of compression chamber axial variable displacement connecting slots and the plurality of radial variable displacement channels are symmetrical about the first radial line of the body, and the line connecting one end of the plurality of radial variable displacement channels constitutes the second radial line of the body, the second radial line being perpendicular to the first radial line.

20. The scroll compressor according to claim 8, characterized in that, The axial variable displacement connecting slot of the compression cavity includes one or more sub-connecting slots, and the cross-sectional shape of the sub-connecting slots is circular, elliptical, oblong, waist-shaped, arc-shaped, or polygonal.

21. The scroll compressor according to claim 20, characterized in that, The arc shape is a circular arc, which is a semicircle or a semi-ellipse; and / or The polygon is a trapezoid, rectangle, parallelogram, rhombus, or triangle.

22. The scroll compressor according to claim 8, characterized in that, The variable displacement exhaust channel is one, and the plurality of axial variable displacement connecting slots of the compression chambers and the plurality of radial variable displacement channels are symmetrical about the variable displacement exhaust channel; or The variable displacement exhaust channels are multiple, and the multiple axial variable displacement connecting slots of the compression chambers, the multiple radial variable displacement channels, and the multiple variable displacement exhaust channels are radially symmetrical about the static vortex disk.

23. A thermal management system, characterized in that, Includes the scroll compressor according to any one of claims 1-22.

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