Scroll compressor, compression mechanism thereof, thermal management system and vehicle

Abstract

The invention relates to a scroll compressor, a compression mechanism thereof, a heat management system and a vehicle, the compression mechanism comprises a compression assembly and a rotating shaft, the compression assembly comprises a first scroll plate and a second scroll plate which are oppositely arranged, and the first scroll plate and the second scroll plate are matched with each other to define at least one compression cavity; the rotating shaft penetrates through the first scroll plate and the second scroll plate and is in transmission connection with the first scroll plate and the second scroll plate, and the rotating shaft is used for driving the first scroll plate and the second scroll plate to rotate, so that the volume of the compression cavity is changed. According to the scroll compressor, gas compression is achieved in the mode that the first scroll plate and the second scroll plate rotate respectively, an anti-rotation mechanism does not need to be arranged on the first scroll plate or the second scroll plate, and vibration and noise generated by working of the compression mechanism are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and in particular, to a scroll compressor and a compression mechanism thereof, a thermal management system and a vehicle. Background Art

[0002] The working principle of the scroll compressor is to achieve gas compression through the relative movement of the orbiting scroll and the fixed scroll. Specifically, the orbiting scroll moves around the fixed scroll in a plane with a very small radius, and the gas is gradually compressed in the compression chamber formed by the cooperation between the orbiting scroll and the fixed scroll.

[0003] In the related art, the scroll compressor generates large vibration and noise when working. Summary of the invention

[0004] The purpose of the present disclosure is to provide a scroll compressor and a compression mechanism thereof, a thermal management system and a vehicle to solve the above-mentioned technical problems.

[0005] In order to achieve the above-mentioned object, as a first aspect of the present disclosure, the present disclosure provides a compression mechanism of a scroll compressor, comprising: The compression assembly comprises a first scroll and a second scroll arranged opposite to each other, wherein the first scroll and the second scroll cooperate with each other to define at least one compression chamber; A rotating shaft is provided through the first scroll and the second scroll and is drivingly connected to the first scroll and the second scroll. The rotating shaft is used to drive the first scroll and the second scroll to rotate so that the volume of the compression chamber changes.

[0006] Optionally, the compression mechanism further comprises a first transmission assembly, the first transmission assembly is located on a side of the first scroll away from the second scroll, the first transmission assembly is transmission-connected between the rotating shaft and the first scroll; and / or, The compression mechanism further includes a second transmission assembly, which is located at a side of the second scroll away from the first scroll, and is transmission-connected between the rotating shaft and the second scroll.

[0007] Optionally, the first transmission assembly comprises a first driving wheel and a first driven wheel, the first driving wheel is sleeved on the rotating shaft, the first driven wheel is mounted on the first scroll plate, and a central axis of the first driving wheel is spaced from a central axis of the first driven wheel; and / or, The second transmission assembly includes a second driving wheel and a second driven wheel, wherein the second driving wheel is sleeved on the rotating shaft, the second driven wheel is installed on the second scroll plate, and a central axis of the second driving wheel is spaced apart from a central axis of the second driven wheel.

[0008] Optionally, the first driving wheel is disposed inside the first driven wheel and is drivingly connected to the first driven wheel; and / or, The second driving wheel is disposed inside the second driven wheel and is drivingly connected to the second driven wheel.

[0009] Optionally, the first driving wheel is a first driving gear, and the first driven wheel is a first driven gear; and / or, The second driving wheel is a second driving gear, and the second driven wheel is a second driven gear.

[0010] Optionally, the first driving gear is a first external bevel gear, and the first driven gear is a first internal bevel gear; and / or, The second driving gear is a second external bevel gear, and the second driven gear is a second internal bevel gear.

[0011] Optionally, a first annular mounting portion is provided on a side of the first scroll away from the second scroll, and the first driven wheel is fixed in the first annular mounting portion; and / or, A second annular mounting portion is provided on a side of the second scroll away from the first scroll, and the second driven wheel is fixed in the second annular mounting portion.

[0012] Optionally, the rotating shaft can drive the first scroll plate to rotate around a first rotation axis and the second scroll plate to rotate around a second rotation axis at the same angular velocity, and there is a distance between the first rotation axis and the second rotation axis.

[0013] Optionally, the first scroll plate can rotate around a first rotation axis, the second scroll plate can rotate around a second rotation axis, there is a distance between the first rotation axis and the central axis of the rotating shaft, there is a distance between the second rotation axis and the central axis of the rotating shaft.

[0014] Optionally, the first rotation axis and the second rotation axis are respectively located on opposite sides of the axis of the rotating shaft.

[0015] Optionally, there is a distance between the central axis of the first scroll plate and the first rotation axis, and there is a distance between the central axis of the second scroll plate and the second rotation axis.

[0016] Optionally, the compression mechanism further comprises a first eccentric bearing and a second eccentric bearing, the first scroll plate is connected to the inner ring of the first eccentric bearing, and the second scroll plate is connected to the inner ring of the second eccentric bearing. Optionally, a first avoidance hole is formed on the first scroll plate, a second avoidance hole is formed on the second scroll plate, and the rotating shaft is passed through the first avoidance hole and the second avoidance hole; The first avoidance hole is configured to avoid the rotating shaft when the first scroll plate rotates relative to the rotating shaft around the first rotation axis, and the second avoidance hole is configured to avoid the rotating shaft when the second scroll plate rotates relative to the rotating shaft around the second rotation axis.

[0017] Optionally, the compression mechanism further includes a first bearing and a second bearing, the first scroll plate is connected to an inner ring of the first bearing, and the second scroll plate is connected to an inner ring of the second bearing.

[0018] Optionally, the rotating shaft includes a first shaft and a second shaft, the first shaft is inserted through the first scroll plate, the second shaft is inserted through the second scroll plate, and the first shaft is detachably connected to the second shaft.

[0019] Optionally, a threaded hole is formed on one of the first shaft and the second shaft, and a screw portion is formed on the other of the first shaft and the second shaft, and the screw portion is threadedly connected to the threaded hole.

[0020] Optionally, the first scroll plate has a plurality of protrusions, and the second scroll plate has a plurality of unconnected recesses, the protrusions extend into the recesses and define the compression chambers with the recesses, the plurality of compression chambers are unconnected, and each compression chamber has an intake end and an exhaust end.

[0021] Optionally, a plurality of the convex portions are arranged at intervals along the circumference of the first scroll plate, a first end of each of the convex portions is close to the center of the first scroll plate, a second end of each of the convex portions is close to the edge of the first scroll plate, and along the direction from the first end of the convex portion to the second end of the convex portion, the convex portion extends in an involute shape; A plurality of recesses are spaced apart along the circumference of the second scroll plate, a first end of each recess is close to the center of the second scroll plate, a second end of each recess is close to the edge of the second scroll plate, and the recess extends in an involute shape along a direction from the first end of the recess to the second end of the recess.

[0022] Optionally, the first end of each of the recesses is close to the center of the second scroll plate, and the first end of each of the recesses is a closed end, a plurality of first exhaust holes are formed on the second scroll plate, the plurality of first exhaust holes correspond to the plurality of recesses one by one, each of the first exhaust holes is connected to the corresponding recess and close to the closed end of the recess, and the first exhaust hole is the exhaust end; The second end of each of the recesses is close to the edge of the second scroll plate, and the second end of each of the recesses is an open end, and the open end is the suction end.

[0023] Optionally, the second scroll plate has a first exhaust hole communicating with the compression chamber; The compression mechanism also includes a partition, which is located on the side of the second scroll away from the first scroll, and a buffer chamber is provided between the partition and the second scroll, the first exhaust hole is connected to the buffer chamber, and the partition is provided with a second exhaust hole connected to the buffer chamber.

[0024] Optionally, the separator includes a support plate and an annular protrusion formed on the support plate, the annular protrusion is located between the support plate and the second scroll plate, the annular protrusion and the second scroll plate define the buffer chamber, and the second exhaust hole is formed on the support plate.

[0025] Optionally, the second scroll plate rotates around a second rotation axis, the second rotation axis is spaced apart from a central axis of the second scroll plate, the compression mechanism further comprises a second eccentric bearing, the second scroll plate is connected to an inner ring of the second eccentric bearing, and an outer ring of the second eccentric bearing is used to be connected to an inner wall of a housing of the scroll compressor; The outer peripheral surface of the annular protrusion is used to abut against the inner wall of the shell, and the inner ring of the second eccentric bearing has an abutment top portion. A portion of the end surface of the annular protrusion close to one end of the second scroll plate abuts against the abutment top portion, and the abutment top portion is the edge of the inner ring of the second eccentric bearing close to the outer ring of the second eccentric bearing.

[0026] Optionally, a support bearing is provided on the separator, and one end of the rotating shaft is connected to the inner ring of the support bearing.

[0027] As a second aspect of the present disclosure, the present disclosure provides a scroll compressor, comprising the compression mechanism of the scroll compressor described above.

[0028] Optionally, the scroll compressor further comprises a motor, and an output end of the motor is drivingly connected to the rotating shaft.

[0029] As a third aspect of the present disclosure, the present disclosure provides a thermal management system, comprising the above-mentioned scroll compressor.

[0030] As a fourth aspect of the present disclosure, the present disclosure provides a vehicle, comprising the above-mentioned scroll compressor, or the above-mentioned thermal management system.

[0031] Through the above technical scheme, the first scroll and the second scroll change the volume of the compression chamber by their own rotation, thereby realizing gas compression. Compared with the technical scheme in the related art that realizes gas compression by the movable scroll making a planar motion with a very small radius around the stationary scroll, there is no need to set an anti-rotation mechanism for the first scroll or the second scroll, which reduces the vibration and noise generated by the operation of the compression mechanism, simplifies the structure of the compression mechanism, and reduces the manufacturing cost of the compression mechanism.

[0032] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a cross-sectional view of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 2 is a perspective view of a first axis of a rotating shaft of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 3 is a three-dimensional view of a second shaft of a rotating shaft of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 4 is a perspective view of a first driven wheel or a second driven wheel of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 5 is a side view of a first eccentric bearing or a second eccentric bearing of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 6 is a perspective view of a first scroll plate of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Figure 7 is a perspective view of a first scroll plate of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure (with Figure 6 different perspectives); Figure 8 is a perspective view of a second scroll plate of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Fig. 9 is a perspective view of a second scroll plate of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure (with Figure 8 different perspectives); Fig.10 is a three-dimensional diagram of a partition of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Fig.11is a three-dimensional view of a support bearing of a compression mechanism of a scroll compressor provided in one embodiment of the present disclosure; Fig.12 It is a stereoscopic view of a housing of a scroll compressor provided in one embodiment of the present disclosure.

[0034] Description of Reference Numerals 100-compression mechanism; 200-housing; 1-compression assembly; 11-first scroll; 110-compression chamber; 111-first rotation axis; 112-first annular mounting portion; 113-first avoidance hole; 114-convex portion; 12-second scroll; 121-second rotation axis; 122-second annular mounting portion; 123-second avoidance hole; 124-recess; 125-intake end; 126-exhaust end; 127-first exhaust hole; 13- Rotating shaft; 131-first shaft; 132-second shaft; 133-threaded hole; 134-screw portion; 2-first transmission assembly; 21-first driving wheel; 22-first driven wheel; 3-second transmission assembly; 31-second driving wheel; 32-second driven wheel; 4-first eccentric bearing; 5-second eccentric bearing; 51-top; 6-partition; 61-buffer chamber; 62-second exhaust hole; 63-support plate; 64-annular protrusion; 65-support bearing. DETAILED DESCRIPTION

[0035] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0036] In the present disclosure, unless otherwise stated, the directional words used, such as "upper" and "lower", are generally defined based on the normal working state of the compression mechanism of the scroll compressor. This is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation of the present disclosure. "Inside" and "outside" refer to the inside and outside of the contour of the corresponding component. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0038] like Figures 1 to 12As shown, as a first aspect of the present disclosure, the present disclosure provides a compression mechanism 100 of a scroll compressor, including a compression assembly 1, the compression assembly 1 including a first scroll plate 11 and a second scroll plate 12 arranged opposite to each other, the first scroll plate 11 and the second scroll plate 12 cooperate with each other to define at least one compression chamber 110. There is a compression chamber 110 between the first scroll plate 11 and the second scroll plate 12 that cooperate with each other, and gas can be compressed in the compression chamber 110.

[0039] The compression mechanism 100 also includes a rotating shaft 13, wherein the rotating shaft 13 passes through the first scroll 11 and the second scroll 12 and is transmission-connected to the first scroll 11 and the second scroll 12, and the rotating shaft 13 is used to drive the first scroll 11 and the second scroll 12 to rotate so that the volume of the compression chamber 110 changes, thereby compressing the gas.

[0040] Through the above technical scheme, the first scroll 11 and the second scroll 12 change the volume of the compression chamber 110 by their own rotation, thereby realizing gas compression. Compared with the technical scheme in the related art that realizes gas compression by the movable scroll rotating around the stationary scroll in a planar motion with a very small radius, the present invention does not need to set an anti-rotation mechanism for the first scroll 11 or the second scroll 12, thereby reducing the vibration and noise generated by the operation of the compression mechanism 100, simplifying the structure of the compression mechanism 100, and reducing the manufacturing cost of the compression mechanism 100.

[0041] Alternatively, if Figure 1 As shown, the rotating shaft 13 can drive the first scroll 11 to rotate around the first rotation axis 111 and the second scroll 12 to rotate around the second rotation axis 121 at the same angular velocity, and there is a distance between the first rotation axis 111 and the second rotation axis 121. The first scroll 11 and the second scroll 12 rotate at the same angular velocity, which means that the first scroll 11 and the second scroll 12 have the same rotation direction and rotation speed, that is, the relative angular velocity between the first scroll 11 and the second scroll 12 is always zero. There is a distance between the first rotation axis 111 and the second rotation axis 121, that is, the first rotation axis 111 and the second rotation axis 121 are not coaxial.

[0042] During the operation of the compression mechanism 100, the first scroll 11 and the second scroll 12 that cooperate with each other rotate around the first rotation axis 111 and the second rotation axis 121 at the same angular velocity under the drive of the rotating shaft 13. Since there is a distance between the first rotation axis 111 and the second rotation axis 121, that is, there is a fixed eccentricity between the first scroll 11 and the second scroll 12 during the rotation process, and the eccentricity is the rotation radius of the first scroll 11 and the second scroll 12.

[0043] When the first scroll 11 and the second scroll 12 rotate at the same speed, in the same direction, and with a fixed eccentricity, the relative angular velocity between the first scroll 11 and the second scroll 12 is always zero, while the direction of the eccentricity keeps changing. If one of the first scroll 11 and the second scroll 12 is considered fixed, the other of the first scroll 11 and the second scroll 12 translates around the fixed eccentricity, so that the gas in the compression chamber 110 can be gradually compressed.

[0044] Here, the present disclosure does not limit the relative position relationship between the central axis of the first scroll plate 11, the central axis of the second scroll plate 12 and the central axis of the rotating shaft 13, the first rotation axis 111, and the second rotation axis 121, as long as it can be ensured that there is a spacing between the first rotation axis 111 and the second rotation axis 121, that is, the first rotation axis 111 and the second rotation axis 121 are not coaxial.

[0045] For example, the central axis of the rotating shaft 13 may be coaxial with one of the first rotation axis 111 and the second rotation axis 121, and the central axis of the rotating shaft 13 may not be coaxial with the other of the first rotation axis 111 and the second rotation axis 121. The central axis of the rotating shaft 13 may be coaxial or not coaxial with the central axis of the first scroll 11, and the central axis of the rotating shaft 13 may be coaxial or not coaxial with the central axis of the second scroll 12. The first rotation axis 111 may be coaxial or not coaxial with the central axis of the first scroll 11. The second rotation axis 121 may be coaxial or not coaxial with the central axis of the second scroll 12. The central axis of the first scroll 11 and the central axis of the second scroll 12 may be coaxial or not coaxial.

[0046] In an exemplary embodiment provided by the present disclosure, Figure 1 As shown, the first scroll 11 can rotate around the first rotation axis 111, and the second scroll 12 can rotate around the second rotation axis 121. There is a distance between the first rotation axis 111 and the central axis of the rotating shaft 13, and there is a distance between the second rotation axis 121 and the central axis of the rotating shaft 13, that is, the first rotation axis 111, the second rotation axis 121, and the central axis of the rotating shaft 13 are not coaxial. Since there is a distance between the first rotation axis 111 and the second rotation axis 121, in order to simultaneously drive the first scroll 11 and the second scroll 12 to rotate at the same angular velocity, the first rotation axis 111 and the second rotation axis 121 are spaced from the central axis of the rotating shaft 13, which is conducive to arranging the transmission assembly between the rotating shaft 13 and the first scroll 11 and between the rotating shaft 13 and the second scroll 12, so that the first scroll 11 and the second scroll 12 with coaxial rotation axes can be driven simultaneously by the rotating shaft 13, so as to achieve the purpose of the first scroll 11 and the second scroll 12 rotating at the same angular velocity.

[0047] In the case where the first rotation axis 111, the second rotation axis 121, and the central axis of the rotating shaft 13 are not coaxial, in order to avoid the first scroll 11 and the second scroll 12 from interfering with the rotating shaft 13 during rotation, optionally, as Figure 1 , Figure 6 , Figure 8 , Fig. 9 As shown, a first avoidance hole 113 is formed on the first scroll plate 11 , a second avoidance hole 123 is formed on the second scroll plate 12 , and the rotating shaft 13 passes through the first avoidance hole 113 and the second avoidance hole 123 .

[0048] The first avoidance hole 113 is configured to avoid the rotating shaft 13 when the first scroll plate 11 rotates relative to the rotating shaft 13 around the first rotation axis 111 , and the second avoidance hole 123 is configured to avoid the rotating shaft 13 when the second scroll plate 12 rotates relative to the rotating shaft 13 around the second rotation axis 121 .

[0049] Since there is a distance between the rotating shaft 13 and the first rotation axis 111 and the second rotation axis 121, the first scroll 11 and the second scroll 12 will interfere with the rotating shaft 13 when they rotate around the first rotation axis 111 and the second rotation axis 121 respectively. By providing the first avoidance hole 113 and the second avoidance hole 123, it can be ensured that the first scroll 11 and the second scroll 12 avoid the rotating shaft 13 when rotating, and the rotating shaft 13 can remain stationary.

[0050] Alternatively, if Figure 1 As shown, the first rotation axis 111 and the second rotation axis 121 can be respectively located on opposite sides of the central axis of the rotating shaft 13. Arranging the first rotation axis 111 and the second rotation axis 121 on opposite sides of the axis of the rotating shaft 13 can not only increase the distance (i.e., the eccentricity) between the first rotation axis 111 and the second rotation axis 121, thereby increasing the amount of gas that can be compressed by the compression mechanism 100, further improving the working efficiency of the compression mechanism 100, but also shorten the transmission path between the rotating shaft 13 and the first scroll plate 11 and the second scroll plate 12.

[0051] Alternatively, if Figure 1 As shown, there is a distance between the central axis of the first scroll 11 and the first rotation axis 111, and there is a distance between the central axis of the second scroll 12 and the second rotation axis 121. Since there is a distance between the central axis of the rotating shaft 13 and both the first rotation axis 111 and the second rotation axis 121, that is, the rotation centers of the first scroll 11 and the second scroll 12 do not coincide with the centers of the first scroll 11 and the second scroll 12, the first scroll 11 and the second scroll 12 rotate eccentrically around the first rotation axis 111 and the second rotation axis 121 driven by the rotating shaft 13.

[0052] The central axis of the rotating shaft 13 is located on a circle with the rotation center of the first scroll 11 or the second scroll 12 as the center and the radius from the rotation center to the geometric center of the first scroll 11 or the second scroll 12. When the first scroll 11 and the second scroll 12 rotate eccentrically, the geometric center of the first scroll 11 or the second scroll 12 rotates around the rotation center.

[0053] Optionally, the compression mechanism 100 may further include a first bearing and a second bearing, the first scroll 11 being connected to the inner ring of the first bearing, and the second scroll 12 being connected to the inner ring of the second bearing. The first bearing and the second bearing can support the first scroll 11 and the second scroll 12, and are convenient for installing the first scroll 11 and the second scroll 12. For example, the outer ring of the first bearing and the outer ring of the second bearing can be connected to the inner wall of the housing 200 of the scroll compressor, so that the first scroll 11 and the second scroll 12 can rotate relative to the housing 200 without friction with the housing 200.

[0054] Here, the present disclosure does not limit the specific types of the first bearing and the second bearing. It can be understood that for the embodiment in which the first rotation axis 111 is coaxial with the central axis of the first scroll 11, that is, the first scroll 11 does not rotate eccentrically, the first bearing can be a concentric bearing; for the embodiment in which the first rotation axis 111 is not coaxial with the central axis of the first scroll 11, that is, the first scroll 11 rotates eccentrically, the first bearing can be an eccentric bearing. For the embodiment in which the second rotation axis 121 is coaxial with the central axis of the second scroll 12, that is, the second scroll 12 does not rotate eccentrically, the second bearing can be a concentric bearing; for the embodiment in which the second rotation axis 121 is not coaxial with the central axis of the second scroll 12, that is, the second scroll 12 rotates eccentrically, the second bearing can be an eccentric bearing.

[0055] In an exemplary embodiment provided by the present disclosure, Figure 1 As shown, the first scroll 11 and the second scroll 12 both rotate eccentrically, and the compression mechanism 100 may further include a first eccentric bearing 4 and a second eccentric bearing 5, the first scroll 11 is connected to the inner ring of the first eccentric bearing 4, and the second scroll 12 is connected to the inner ring of the second eccentric bearing 5. Since the first scroll 11 and the second scroll 12 rotate eccentrically under the drive of the rotating shaft 13, the inner ring of the first eccentric bearing 4 and the inner ring of the second eccentric bearing 5 can cooperate with the eccentric rotation of the first scroll 11 and the second scroll 12, and the outer ring of the first eccentric bearing 4 and the outer ring of the second eccentric bearing 5 can be connected to the housing 200 of the scroll compressor.

[0056] In order to enable the rotating shaft 13 to drive the first scroll 11 and the second scroll 12 to rotate, as an embodiment, the compression mechanism 100 may also include a first transmission assembly 2, which is located on the side of the first scroll 11 away from the second scroll 12, and the first transmission assembly 2 is connected between the rotating shaft 13 and the first scroll 11.

[0057] For this embodiment, the rotating shaft 13 can directly pass through the center of the second scroll 12 and be connected thereto, that is, the central axis of the rotating shaft 13 is coaxial with the central axis of the second scroll 12, and the central axis of the second scroll 12 is the second rotating axis 121. The first rotating axis 111 is not coaxial with the central axis of the rotating shaft 13, and the first scroll 11 and the rotating shaft 13 are transmitted through the first transmission assembly 2.

[0058] As another embodiment, the compression mechanism 100 may further include a second transmission assembly 3 , which is located on a side of the second scroll 12 away from the first scroll 11 , and is transmission-connected between the rotating shaft 13 and the second scroll 12 .

[0059] For this embodiment, the rotating shaft 13 can directly pass through the center of the first scroll 11 and be connected thereto, that is, the central axis of the rotating shaft 13 is coaxial with the central axis of the first scroll 11, and the central axis of the first scroll 11 is the first rotation axis 111. The second rotation axis 121 is not coaxial with the central axis of the rotating shaft 13, and the second scroll 12 and the rotating shaft 13 are transmitted through the second transmission assembly 3.

[0060] As another embodiment, the compression mechanism 100 may further include a first transmission assembly 2 and a second transmission assembly 3, wherein the first transmission assembly 2 is located on the side of the first scroll 11 away from the second scroll 12, and the first transmission assembly 2 is transmission-connected between the rotating shaft 13 and the first scroll 11, and the second transmission assembly 3 is located on the side of the second scroll 12 away from the first scroll 11, and the second transmission assembly 3 is transmission-connected between the rotating shaft 13 and the second scroll 12.

[0061] For this embodiment, the central axis of the rotating shaft 13, the first rotating axis 111, and the second rotating axis 121 may not be coaxial. The first scroll 11 and the rotating shaft 13 are transmitted through the first transmission assembly 2, and the second scroll 12 and the rotating shaft 13 are transmitted through the second transmission assembly 3.

[0062] In the various embodiments mentioned above, since the first transmission assembly 2 is located on the side of the first scroll 11 away from the second scroll 12, and / or the second transmission assembly 3 is located on the side of the second scroll 12 away from the first scroll 11, the first transmission assembly 2 and / or the second transmission assembly 3 will not occupy the space between the first scroll 11 and the second scroll 12. Since there is a compression chamber 110 between the first scroll 11 and the second scroll 12, such a configuration can ensure that the volume of the compression chamber 110 is not affected, thereby increasing the capacity of the compression chamber 110.

[0063] The present disclosure does not limit the specific structure of the first transmission assembly 2 and / or the second transmission assembly 3. Figure 1 , Figure 2 , Figure 4 As shown, the first transmission assembly 2 may include a first driving wheel 21 and a first driven wheel 22, the first driving wheel 21 may be sleeved on the rotating shaft 13, and the first driven wheel 22 is installed on the first scroll 11. The central axis of the first driving wheel 21 and the central axis of the first driven wheel 22 are spaced apart, and the central axis of the first driven wheel 22 is coaxial with the first rotation axis 111. Since the first driving wheel 21 is sleeved on the rotating shaft 13, the central axis of the first driving wheel 21 is coaxial with the central axis of the rotating shaft 13, and the central axis of the first driven wheel 22 is coaxial with the first rotation axis 111. Through the cooperation of the first driving wheel 21 and the first driven wheel 22, the transmission of the rotating shaft 13 and the first scroll 11 can be realized when the central axis of the rotating shaft 13 and the first rotation axis 111 are not coaxial, so that the first scroll 11 is driven by the first driven wheel 22 to rotate.

[0064] like Figure 1 , Figure 3 , Figure 4 As shown, the second transmission assembly 3 may include a second driving wheel 31 and a second driven wheel 32, and the second driving wheel 31 is sleeved on the rotating shaft 13, and the second driven wheel 32 is installed on the second scroll 12. The central axis of the second driving wheel 31 and the central axis of the second driven wheel 32 are spaced apart, and the central axis of the second driven wheel 32 is coaxial with the second rotation axis 121. Since the second driving wheel 31 is sleeved on the rotating shaft 13, the central axis of the first driving wheel 21 is coaxial with the central axis of the rotating shaft 13, and the central axis of the second driven wheel 32 is coaxial with the second rotation axis 121. Through the coordination of the second driving wheel 31 and the second driven wheel 32, the transmission of the rotating shaft 13 and the second scroll 12 can be realized when the central axis of the rotating shaft 13 and the second rotation axis 121 are not coaxial, so that the second scroll 12 rotates under the drive of the second driven wheel 32.

[0065] Alternatively, if Figure 1As shown, the first driving wheel 21 is arranged in the first driven wheel 22 and is in transmission connection with the first driven wheel 22; and / or, the second driving wheel 31 is arranged in the second driven wheel 32 and is in transmission connection with the second driven wheel 32. Since there is a spacing between the central axis of the first driving wheel 21 and the central axis of the first driven wheel 22, and / or, there is a spacing between the central axis of the second driving wheel 31 and the central axis of the second driven wheel 32, by arranging the first driving wheel 21 in the first driven wheel 22, and / or, arranging the second driving wheel 31 in the second driven wheel 32, the outer surface of the first driving wheel 21 and the inner surface of the first driven wheel 22 can be in transmission contact, and the outer surface of the second driving wheel 31 and the inner surface of the second driven wheel 32 can be in transmission contact, and the stability of this internal transmission mode is better.

[0066] In other embodiments, the first driving wheel 21 can be located outside the first driven wheel 22, and the outer surface of the first driving wheel 21 is in transmission contact with the outer surface of the first driven wheel 22. The second driving wheel 31 can be located outside the second driven wheel 32, and the outer surface of the second driving wheel 31 is in transmission contact with the outer surface of the second driven wheel 32.

[0067] The present disclosure does not limit the connection method between the first driving wheel 21, the first driven wheel 22, the second driving wheel 31 and the second driven wheel 32. For example, the two may be in friction contact or meshing contact.

[0068] In one embodiment, the first driving wheel 21 may be a first driving friction wheel, the first driven wheel 22 may be a first driven friction wheel, the first driving friction wheel is in friction contact with the first driven friction wheel. The second driving wheel 31 may be a second driving friction wheel, the second driven wheel 32 may be a second driven friction wheel, the second driving friction wheel is in friction contact with the second driven friction wheel.

[0069] In another embodiment, the first driving wheel 21 may be a first driving gear, the first driven wheel 22 may be a first driven gear, and the first driving gear meshes with the first driven gear. The second driving wheel 31 may be a second driving gear, the second driven wheel 32 may be a second driven gear, and the second driving gear meshes with the second driven gear. The use of gear transmission can improve the accuracy of transmission and avoid relative sliding between the first driving wheel 21 and the first driven wheel 22, and between the second driving wheel 31 and the second driven wheel 32, which affects the effect of transmission.

[0070] Here, the gear may be a spur gear or a helical gear, which is not limited in the present disclosure. In an exemplary embodiment provided in the present disclosure, Figures 2 to 4As shown, the first driving gear is a first external bevel gear, and the first driven gear is a first internal bevel gear. The second driving gear is a second external bevel gear, and the second driven gear is a second internal bevel gear. Since the contact line can change from short to long and then from long to short when the helical gears are meshing, the force transmission process of the helical gear teeth is smoother, which can reduce the impact generated when the gear teeth directly contact and separate during transmission, reduce the impact and noise during transmission, and improve the stability of transmission.

[0071] In order to connect the first driven wheel 22 with the first scroll 11, and / or connect the second driven wheel 32 with the second scroll 12, optionally, as Figure 1 , Figure 7 and Fig. 9 As shown, a first annular mounting portion 112 is provided on the side of the first scroll 11 away from the second scroll 12, and the first driven wheel 22 is fixed in the first annular mounting portion 112. A second annular mounting portion 122 is provided on the side of the second scroll 12 away from the first scroll 11, and the second driven wheel 32 is fixed in the second annular mounting portion 122.

[0072] The first annular mounting portion 112 can position and protect the first driven wheel 22, and can also realize the connection between the first scroll 11 and the first driven wheel 22, so that the first driven wheel 22 can drive the first scroll 11 to rotate. The second annular mounting portion 122 can position and protect the second driven wheel 32, and can also realize the connection between the second scroll 12 and the second driven wheel 32, so that the second driven wheel 32 can drive the second scroll 12 to rotate.

[0073] In order to facilitate the assembly of the first scroll 11, the second scroll 12 and the rotating shaft 13, optionally, as Figures 1 to 3 As shown, the rotating shaft 13 includes a first shaft 131 and a second shaft 132, the first shaft 131 is inserted into the first scroll plate 11, the second shaft 132 is inserted into the second scroll plate 12, and the first shaft 131 and the second shaft 132 are detachably connected. Since the rotating shaft 13 is respectively connected to the first scroll plate 11 and the second scroll plate 12 in a transmission manner, the rotating shaft 13 is set to be the first shaft 131 and the second shaft 132 that are detachably connected. On the one hand, the first shaft 131 and the second shaft 132 can be processed separately, reducing the difficulty of processing; on the other hand, when the compression mechanism 100 is assembled, the first shaft 131 can be first inserted into the first scroll plate 11, and then the second shaft 132 can be inserted into the second scroll plate 12, and then the first scroll plate 11 and the second scroll plate 12 are matched, and the first shaft 131 and the second shaft 132 are connected, thereby reducing the difficulty of assembly and improving the efficiency of assembly.

[0074] The present disclosure does not limit the connection method of the first shaft 131 and the second shaft 132. For example, one end of the first shaft 131 may be interference fit with one end of the second shaft 132, or the first shaft 131 and the second shaft 132 may be connected via a coupling. Figure 1 , Figure 2 and Figure 3 As shown, a threaded hole 133 is formed on one of the first shaft 131 and the second shaft 132, and a screw portion 134 is formed on the other of the first shaft 131 and the second shaft 132, and the screw portion 134 is threadedly connected to the threaded hole 133. The threaded connection can increase the firmness of the connection between the first shaft 131 and the second shaft 132, and can also increase the matching accuracy between the first shaft 131 and the second shaft 132, which can ensure that there is no poor followability during power transmission.

[0075] Optionally, the rotation direction of the threads on the screw portion 134 and the threaded hole 133 may be opposite to the rotation direction of the rotating shaft 13 , so that during the rotation of the rotating shaft 13 , the threaded connection between the first shaft 131 and the second shaft 132 will not loosen.

[0076] In addition, the present disclosure does not limit the specific structure of the first scroll 11 and the second scroll 12, as long as the first scroll 11 and the second scroll 12 can cooperate with each other and have a compression chamber 110 for compressing gas. For example, the first scroll 11 may have a first scroll tooth, and the second scroll 12 may have a second scroll tooth, and the first scroll tooth and the second scroll tooth are engaged with each other.

[0077] In order to further reduce the vibration of the compression mechanism 100 during operation, in one embodiment provided in the present disclosure, as Figure 1 , Figure 6 and Figure 8 As shown, the first scroll plate 11 has a plurality of protrusions 114, and the second scroll plate 12 has a plurality of recesses 124 which are not connected to each other. The protrusions 114 extend into the recesses 124 and define a compression chamber 110 with the recesses 124. The plurality of compression chambers 110 (the plurality of protrusions 114 and the plurality of recesses 124 define the plurality of compression chambers 110) are not connected to each other, and each compression chamber 110 has an intake end 125 and an exhaust end 126.

[0078] As the first scroll 11 and the second scroll 12 rotate, the convex portion 114 located in the concave portion 124 can continuously change its position in the concave portion 124, so that the volume of the compression chamber 110 enclosed by the convex portion 114 and the inner wall and bottom surface of the concave portion 124 continuously changes, so that the gas is sucked into the compression chamber 110 by the suction end 125 and gradually compressed in the compression chamber 110, and finally discharged from the compression chamber 110 through the exhaust end 126. When the compression chamber 110 compresses the gas, it will also be subjected to the reaction force of the gas, thereby causing the vibration of the scroll. The multiple unconnected compression chambers 110 provided in the present disclosure compress the gas at the same time, and the reaction force received by the scroll can be distributed to different compression chambers 110, thereby reducing the reaction force received by a single compression chamber 110, thereby reducing the vibration and noise of the scroll caused by the compressed gas, and improving the stability of the compression mechanism 100 during operation.

[0079] Alternatively, if Figure 6 and Figure 8 As shown, a plurality of protrusions 114 are arranged at intervals along the circumference of the first scroll plate 11, the first end of each protrusion 114 is close to the center of the first scroll plate 11, the second end of each protrusion 114 is close to the edge of the first scroll plate 11, and the protrusion 114 extends in an involute shape in the direction from the first end of the protrusion 114 to the second end of the protrusion 114.

[0080] A plurality of recesses 124 are arranged at intervals along the circumference of the second scroll plate 12, the first end of each recess 124 is close to the center of the second scroll plate 12, the second end of each recess 124 is close to the edge of the second scroll plate 12, and the recess 124 extends in an involute curve in the direction from the first end of the recess 124 to the second end of the recess 124.

[0081] The multiple protrusions 114 and the multiple recesses 124 all extend from the center to the edge along an involute, and the multiple protrusions 114 and the multiple recesses 124 can form a spiral shape, so that each mutually matching protrusion 114 and recess 124 can continuously change the volume of the compression chamber 110 when the first scroll plate 11 and the second scroll plate 12 rotate at the same angular velocity, thereby compressing the gas.

[0082] In order to form a one-way gas flow path in the compression chamber 110, optionally, as Figure 1 , Figure 6 and Figure 8As shown, the first end of each recess 124 is close to the center of the second scroll 12, and the first end of each recess 124 is a closed end. A plurality of first exhaust holes 127 are formed on the second scroll 12, and the plurality of first exhaust holes 127 correspond to the plurality of recesses 124 one by one. Each first exhaust hole 127 is connected to the corresponding recess 124 and close to the closed end of the recess 124, and the first exhaust hole 127 is an exhaust end 126. The second end of each recess 124 is close to the edge of the second scroll 12, and the second end of each recess 124 is an open end, and the open end is an intake end 125. During the operation of the compression mechanism 100, the gas can enter the compression chamber 110 from the open end at the second end of the recess 124, pass through the compression chamber 110 whose volume is constantly changing formed by the convex portion 114 and the recess 124, and then be discharged from the compression chamber 110 from the first exhaust hole 127 at the first end of the recess 124.

[0083] In other embodiments, the first end of each recess 124 is close to the center of the second scroll plate 12, and the first end of each recess 124 is a closed end, the second end of each recess 124 is close to the edge of the second scroll plate 12, and the second end of the recess 124 may also be a closed end, and the first scroll plate 11 may be provided with an air intake hole at a position close to the second end of the recess, and the air intake hole is the above-mentioned air intake end 125.

[0084] Optionally, the surfaces of the convex portion 114 of the first scroll 11 and the concave portion 124 of the second scroll 12 may be coated with a self-lubricating coating, so as to achieve oil-free self-lubrication of the entire machine, thereby solving the problem of miscibility between the lubricant and the working fluid.

[0085] In addition, in order to buffer the gas discharged from the compression chamber 110, optionally, as Figure 1 , Figure 8 and Fig. 9 As shown, the second scroll 12 has a first exhaust hole 127 connected to the compression chamber 110. The compression mechanism 100 also includes a partition 6, which is located on the side of the second scroll 12 away from the first scroll 11, and a buffer chamber 61 is provided between the partition 6 and the second scroll 12. The first exhaust hole 127 is connected to the buffer chamber 61, and the partition 6 is provided with a second exhaust hole 62 connected to the buffer chamber 61. The high-pressure gas compressed in the compression chamber 110 of the first scroll 11 and the second scroll 12 is discharged from the compression chamber 110 through the first exhaust hole 127 and enters the buffer chamber 61 connected to the first exhaust hole 127. The buffer chamber 61 between the partition 6 and the second scroll 12 can, on the one hand, separate the compressed high-pressure gas from the atmosphere, so that the compressed high-pressure gas can maintain a high-pressure state, and on the other hand, can buffer the high-pressure gas.

[0086] Optionally, the second exhaust hole 62 may be provided with an exhaust valve, which may be opened after the gas in the buffer chamber 61 reaches a preset pressure, thereby ensuring that the pressure of the gas exhausted from the buffer chamber 61 is a set value.

[0087] Alternatively, if Figure 1 and Fig.10 As shown, the separator 6 includes a support disk 63 and an annular protrusion 64 formed on the support disk 63, the annular protrusion 64 is located between the support disk 63 and the second scroll 12, the end surface of the support disk 63 facing the second scroll 12, the inner peripheral surface of the annular protrusion 64 and the end surface of the second scroll 12 facing the support disk 63 define a buffer cavity 61, and the second exhaust hole 62 is formed on the support disk 63. The annular protrusion 64 is located between the support disk 63 and the second scroll 12, on the one hand, a gap can be formed between the second scroll 12 and the support disk 63, and the volume of the buffer cavity 61 can be increased; on the other hand, the annular protrusion 64 can also support the second scroll 12.

[0088] In order to reduce the influence of the partition 6 on the normal operation of the compression mechanism 100, optionally, as Figure 1 As shown, for the embodiment in which the second scroll 12 rotates eccentrically around the second rotation axis 121, that is, the second rotation axis 121 is spaced from the central axis of the second scroll 12, the compression mechanism 100 further includes a second eccentric bearing 5, the second scroll 12 is connected to the inner ring of the second eccentric bearing 5, and the outer ring of the second eccentric bearing 5 is used to be connected to the inner wall of the housing 200 of the compressor. The outer peripheral surface of the annular protrusion 64 can be used to abut against the inner wall of the housing 200, the inner ring of the second eccentric bearing 5 has an abutting top 51, and a part of the end surface of the annular protrusion 64 close to one end of the second scroll 12 abuts against the abutting top 51, and the abutting top 51 is the edge of the inner ring of the second eccentric bearing 5 close to the outer ring of the second eccentric bearing 5. That is to say, part of the end surface of the annular protrusion 64 close to the second scroll plate 12 abuts against the abutting portion 51 of the second eccentric bearing 5, that is, it abuts against the edge of the inner ring of the second eccentric bearing 5 close to the outer ring of the second eccentric bearing 5, and the other part of the end surface abuts against the remaining part of the second eccentric bearing 5 except the inner ring (for example, the outer ring).

[0089] When the second scroll 12 rotates, the inner ring of the second eccentric bearing 5 will also rotate, and part of the end face of the annular protrusion 64 will contact the abutment top 51 of the second eccentric bearing 5, that is, it will contact part of the inner ring of the second eccentric bearing 5, and the remaining end face of the annular protrusion 64 will contact the part of the second eccentric bearing 5 that does not rotate with the second scroll 12 (for example, it will contact the outer ring), thereby reducing the contact area between the end face of the annular protrusion 64 and the second eccentric bearing 5, and reducing the resistance to the second scroll 12 caused by friction.

[0090] Optionally, a portion of the end surface of the annular protrusion 64 that abuts against the second eccentric bearing 5 may be coated with a vibration-damping lubricating coating that is resistant to high temperature and pressure and is not susceptible to corrosion, thereby further reducing the friction between the annular protrusion 64 and the second eccentric bearing 5 .

[0091] Alternatively, if Figure 1 and Fig.11 As shown, a support bearing 65 is provided on the separator 6, and one end of the rotating shaft 13 is connected to the inner ring of the support bearing 65. Through the support of the separator 6 and the support bearing 65 provided on the separator 6 for the rotating shaft 13, it can be ensured that during the rotation of the rotating shaft 13, there will be no rotation deviation due to the change of the center of gravity position, and the transmission accuracy of the rotating shaft 13 is further improved.

[0092] As a second aspect of the present disclosure, the present disclosure provides a scroll compressor, comprising the compression mechanism 100 of the scroll compressor described above.

[0093] Optionally, the scroll compressor further includes a motor, and an output shaft of the motor is drivingly connected to the rotating shaft 13 .

[0094] Optionally, the output end of the motor may be connected to an end of the rotating shaft 13 close to the first scroll 11 .

[0095] Alternatively, if Figure 1 and Fig.12 As shown, the scroll compressor may further include a housing 200 , in which the motor and the compression mechanism 100 are disposed, and the first eccentric bearing 4 , the second eccentric bearing 5 and the partition 6 may also be disposed.

[0096] As a third aspect of the present disclosure, the present disclosure provides a thermal management system, comprising the above-mentioned scroll compressor.

[0097] As a fourth aspect of the present disclosure, the present disclosure provides a vehicle, comprising the above-mentioned scroll compressor or thermal management system.

[0098] The vehicle may be a hybrid vehicle, a gasoline vehicle or a pure electric vehicle, which is not limited in the present disclosure.

[0099] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0100] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0101] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A compression mechanism of a scroll compressor, characterized in that: include: The compression assembly comprises a first scroll and a second scroll arranged opposite to each other, wherein the first scroll and the second scroll cooperate with each other to define at least one compression chamber; A rotating shaft is provided through the first scroll and the second scroll and is drivingly connected to the first scroll and the second scroll. The rotating shaft is used to drive the first scroll and the second scroll to rotate so that the volume of the compression chamber changes.

2. The compression mechanism of the scroll compressor according to claim 1, characterized in that: The compression mechanism further includes a first transmission assembly, the first transmission assembly is located on a side of the first scroll away from the second scroll, and the first transmission assembly is transmission-connected between the rotating shaft and the first scroll; and / or, The compression mechanism further includes a second transmission assembly, which is located at a side of the second scroll away from the first scroll, and is transmission-connected between the rotating shaft and the second scroll.

3. The compression mechanism of the scroll compressor according to claim 2, characterized in that: The first transmission assembly comprises a first driving wheel and a first driven wheel, the first driving wheel is sleeved on the rotating shaft, the first driven wheel is mounted on the first scroll plate, and a central axis of the first driving wheel is spaced from a central axis of the first driven wheel; and / or, The second transmission assembly includes a second driving wheel and a second driven wheel, wherein the second driving wheel is sleeved on the rotating shaft, the second driven wheel is installed on the second scroll plate, and a central axis of the second driving wheel is spaced apart from a central axis of the second driven wheel.

4. The compression mechanism of the scroll compressor according to claim 3, characterized in that: The first driving wheel is disposed inside the first driven wheel and is drivingly connected to the first driven wheel; and / or, The second driving wheel is disposed inside the second driven wheel and is drivingly connected to the second driven wheel.

5. The compression mechanism of the scroll compressor according to claim 4, characterized in that: The first driving wheel is a first driving gear, and the first driven wheel is a first driven gear; and / or, The second driving wheel is a second driving gear, and the second driven wheel is a second driven gear.

6. The compression mechanism of the scroll compressor according to claim 5, characterized in that: The first driving gear is a first external helical gear, and the first driven gear is a first internal helical gear; and / or, The second driving gear is a second external bevel gear, and the second driven gear is a second internal bevel gear.

7. The compression mechanism of the scroll compressor according to claim 4, characterized in that: A first annular mounting portion is provided on a side of the first scroll away from the second scroll, and the first driven wheel is fixed in the first annular mounting portion; and / or, A second annular mounting portion is provided on a side of the second scroll away from the first scroll, and the second driven wheel is fixed in the second annular mounting portion.

8. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The rotating shaft can drive the first scroll to rotate around a first rotation axis and the second scroll to rotate around a second rotation axis at the same angular speed, and there is a distance between the first rotation axis and the second rotation axis.

9. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The first scroll plate is rotatable about a first rotation axis, and the second scroll plate is rotatable about a second rotation axis. There is a distance between the first rotation axis and the central axis of the rotating shaft, and there is a distance between the second rotation axis and the central axis of the rotating shaft.

10. The compression mechanism of the scroll compressor according to claim 9, characterized in that: The first rotation axis and the second rotation axis are respectively located on opposite sides of the central axis of the rotating shaft.

11. The compression mechanism of the scroll compressor according to claim 9, characterized in that: A distance is defined between a central axis of the first scroll and the first rotation axis, and a distance is defined between a central axis of the second scroll and the second rotation axis.

12. The compression mechanism of the scroll compressor according to claim 11, characterized in that: The compression mechanism further includes a first eccentric bearing and a second eccentric bearing. The first scroll plate is connected to an inner ring of the first eccentric bearing, and the second scroll plate is connected to an inner ring of the second eccentric bearing.

13. The compression mechanism of the scroll compressor according to claim 9, characterized in that: A first avoidance hole is formed on the first scroll plate, a second avoidance hole is formed on the second scroll plate, and the rotating shaft is passed through the first avoidance hole and the second avoidance hole; The first avoidance hole is used for the first scroll to avoid the rotating shaft when the first scroll rotates relative to the rotating shaft around the first rotation axis, and the second avoidance hole is used for the second scroll to avoid the rotating shaft when the second scroll rotates relative to the rotating shaft around the second rotation axis.

14. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The compression mechanism further includes a first bearing and a second bearing. The first scroll is connected to an inner ring of the first bearing, and the second scroll is connected to an inner ring of the second bearing.

15. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The rotating shaft includes a first shaft and a second shaft, the first shaft is inserted through the first scroll plate, the second shaft is inserted through the second scroll plate, and the first shaft is detachably connected to the second shaft.

16. The compression mechanism of the scroll compressor according to claim 15, characterized in that: A threaded hole is formed on one of the first shaft and the second shaft, and a screw portion is formed on the other of the first shaft and the second shaft. The screw portion is threadedly connected to the threaded hole.

17. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The first scroll plate has a plurality of convex portions, and the second scroll plate has a plurality of concave portions which are not connected to each other. The convex portions extend into the concave portions and define the compression chambers with the concave portions. The plurality of compression chambers are not connected to each other, and each compression chamber has an intake end and an exhaust end.

18. The compression mechanism of the scroll compressor according to claim 17, characterized in that: A plurality of the convex portions are arranged at intervals along the circumference of the first scroll plate, a first end of each of the convex portions is close to the center of the first scroll plate, a second end of each of the convex portions is close to the edge of the first scroll plate, and the convex portions extend in an involute line along the direction from the first end of the convex portion to the second end of the convex portion; A plurality of recesses are spaced apart along the circumference of the second scroll plate, a first end of each recess is close to the center of the second scroll plate, a second end of each recess is close to the edge of the second scroll plate, and the recess extends in an involute shape along a direction from the first end of the recess to the second end of the recess.

19. The compression mechanism of the scroll compressor according to claim 17, characterized in that: The first end of each of the recesses is close to the center of the second scroll plate, and the first end of each of the recesses is a closed end. A plurality of first exhaust holes are formed on the second scroll plate, and the plurality of first exhaust holes correspond to the plurality of recesses one by one. Each of the first exhaust holes is connected to the corresponding recess and is close to the closed end of the recess. The first exhaust hole is the exhaust end. The second end of each of the recesses is close to the edge of the second scroll plate, and the second end of each of the recesses is an open end, and the open end is the suction end.

20. The compression mechanism of the scroll compressor according to any one of claims 1 to 7, characterized in that: The second scroll plate has a first exhaust hole communicating with the compression chamber; The compression mechanism also includes a partition, which is located on the side of the second scroll away from the first scroll, and a buffer chamber is provided between the partition and the second scroll, the first exhaust hole is connected to the buffer chamber, and the partition is provided with a second exhaust hole connected to the buffer chamber.

21. The compression mechanism of the scroll compressor according to claim 20, characterized in that: The separator includes a support plate and an annular protrusion formed on the support plate, the annular protrusion is located between the support plate and the second scroll plate, the support plate, the annular protrusion and the second scroll plate define the buffer cavity, and the second exhaust hole is formed on the support plate.

22. The compression mechanism of the scroll compressor according to claim 21, characterized in that: The second scroll plate rotates around a second rotation axis, the second rotation axis is spaced apart from a central axis of the second scroll plate, the compression mechanism further comprises a second eccentric bearing, the second scroll plate is connected to an inner ring of the second eccentric bearing, and an outer ring of the second eccentric bearing is used to be connected to an inner wall of a housing of the scroll compressor; The outer peripheral surface of the annular protrusion is used to abut against the inner wall of the shell, and the inner ring of the second eccentric bearing has an abutment top portion. A portion of the end surface of the annular protrusion close to one end of the second scroll plate abuts against the abutment top portion, and the abutment top portion is the edge of the inner ring of the second eccentric bearing close to the outer ring of the second eccentric bearing.

23. The compression mechanism of the scroll compressor according to claim 20, characterized in that: A support bearing is arranged on the separator, and one end of the rotating shaft is connected to the inner ring of the support bearing.

24. A scroll compressor, characterized in that: A compression mechanism comprising the scroll compressor according to any one of claims 1-23.

25. The scroll compressor according to claim 24, characterized in that The scroll compressor also includes a motor, and an output end of the motor is drivingly connected to the rotating shaft.

26. A thermal management system, characterized in that: Including the scroll compressor as described in claim 24 or 25.

27. A vehicle, characterized in that: It comprises the scroll compressor as claimed in claim 24 or 25, or the thermal management system as claimed in claim 26.

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