Bushing assemblies, compressors and refrigeration equipment

Abstract

This utility model provides a bushing assembly, a compressor, and a refrigeration device. The bushing assembly is used in the compressor, which includes a moving scroll and a drive shaft. The drive shaft includes an eccentric portion disposed on the moving scroll. The bushing assembly includes: a bushing, located radially along the drive shaft and between the eccentric portion and the moving scroll, with a limiting portion; an elastic element, disposed within the bushing and between the bushing and the eccentric portion; and a mating portion, disposed on the elastic element. One of the mating portion and the limiting portion includes a first mating surface and a second mating surface, which are arranged axially along the bushing. The other of the mating portion and the limiting portion is located between the first and second mating surfaces and can abut against at least one of the first and second mating surfaces, thereby providing bidirectional limiting of the elastic element in the axial direction. This improves the reliability of the compressor while ensuring the function of the bushing assembly.

Description

Technical Field

[0001] This utility model relates to the field of compressor equipment technology, and more specifically, to a bushing assembly, a compressor, and a refrigeration device. Background Technology

[0002] The compression mechanism of a scroll compressor generally includes a moving scroll and a stationary scroll that mesh with each other, and a series of compression chambers formed between them for compression. When the drive shaft of the drive mechanism rotates, it can drive the moving scroll via the crank pin of the drive shaft and the load of the unloading bushing, so that the moving scroll rotates relative to the stationary scroll in translational motion.

[0003] Currently, in related technologies, the unloading bushing is located between the moving scroll and the crank pin of the drive shaft. When the scroll compressor is running, the unloading bushing transmits the driving load of the crank pin of the drive shaft to the moving scroll. Since the magnitude of the load fluctuates and the direction changes with the translational rotation of the moving scroll, the reed is easy to move out or fall off from the unloading bushing, thereby scraping against the end face of the moving scroll hub, causing the reed to break and break, resulting in more serious failure of the scroll compressor. Utility Model Content

[0004] The embodiments of this utility model are intended to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, a first aspect of the embodiments of the present invention provides a bushing assembly.

[0006] A second aspect of the embodiments of this utility model provides a bushing assembly.

[0007] A third aspect of the embodiments of this utility model provides a compressor.

[0008] A fourth aspect of the embodiments of this utility model provides a refrigeration device.

[0009] In view of the above, according to a first aspect of the present invention, a bushing assembly is provided for a compressor. The compressor includes a moving scroll and a drive shaft. The drive shaft includes an eccentric portion disposed on the moving scroll. The bushing assembly includes: a bushing disposed radially between the eccentric portion and the moving scroll, and the bushing having a limiting portion; an elastic member disposed within the bushing and between the bushing and the eccentric portion; and a mating portion disposed on the elastic member. One of the mating portion and the limiting portion includes a first mating surface and a second mating surface. The first and second mating surfaces are arranged axially along the bushing. The other of the mating portion and the limiting portion is located between the first and second mating surfaces and is capable of abutting against at least one of the first and second mating surfaces.

[0010] The bushing assembly provided in this embodiment includes a bushing, an elastic element, and a mating part. Specifically, along the radial direction of the drive shaft, the bushing is located between the eccentric part of the drive shaft and the moving scroll, and the elastic element is located between the bushing and the eccentric part. It is understood that, due to the elastic element's deformation, when the compressor is not started or stopped, the elastic element can cause the moving scroll and the compressor's stationary scroll to separate radially. Specifically, when the compressor starts, because the moving scroll and stationary scroll separate radially, the compressor's compression is relatively slow, and the resistance torque rises more slowly, thereby improving the compressor's starting capability. Moreover, when the compressor stops, because the moving scroll and stationary scroll separate rapidly radially, rapid unloading can be achieved, thereby shortening the shutdown reversal time.

[0011] When the compressor is running, the drive shaft transmits the drive load to the moving scroll through the eccentric part and the bushing, so that the moving scroll can rotate relative to the stationary scroll to compress the gas in the compression chamber formed by the moving scroll and the stationary scroll. However, when the bushing transmits the drive load of the eccentric part to the moving scroll, the magnitude of the load fluctuates and the direction also changes, which makes the elastic element easy to move out or fall off from the bushing.

[0012] The mating part is provided on the elastic member. Specifically, when the mating part includes a first mating surface and a second mating surface, the limiting part is located between the first mating surface and the second mating surface. Alternatively, when the limiting part includes a first mating surface and a second mating surface, the mating part is located between the first mating surface and the second mating surface. The specific configuration can be made according to actual needs.

[0013] Since the first and second mating surfaces are arranged along the axial direction of the bushing, and when the mating part includes the first and second mating surfaces, the limiting part can abut against at least one of the first and second mating surfaces, or when the limiting part includes the first and second mating surfaces, the mating part can abut against at least one of the first and second mating surfaces. In other words, under the load of the compressor operation, the mating part and the limiting part can be used to limit the elastic element in both directions in the axial direction, that is, to restrict the elastic element from moving downward or upward, to prevent the elastic element from moving out or falling off from the bushing due to load fluctuations, and to prevent the elastic element from moving out and scraping against the end face of the moving scroll hub, thereby causing the elastic element to break and fail. Under the premise of ensuring the function of the bushing assembly, the reliability of the compressor is improved.

[0014] Furthermore, during the installation of the bushing assembly, when the elastic element is inserted axially into the bushing, the elastic element is considered properly installed when the mating part and the limiting part are engaged, i.e., when the limiting part or the mating part is located between the first mating surface and the second mating surface. In other words, by setting the mating part and the limiting part, the elastic element can be smoothly inserted into place.

[0015] In some technical solutions, optionally, one of the mating part and the limiting part is a protrusion and the other is a groove, with the protrusion inserted into the groove; wherein, along the axial direction of the bushing, the two opposite groove walls are the first mating surface and the second mating surface, respectively.

[0016] In this technical solution, specifically, the limiting part is a protrusion and the mating part is a groove. Along the axial direction of the bushing, the upper and lower groove walls opposite each other are the first mating surface and the second mating surface, respectively. Since the protrusion is inserted into the groove and can abut against at least one of the first mating surface and the second mating surface, the elastic element can be bidirectionally limited in the axial direction, so as to avoid the elastic element from moving out or falling off from the bushing due to load fluctuations.

[0017] The limiting part is a groove, and the mating part is a protrusion. Along the axial direction of the bushing, the upper and lower groove walls opposite each other are the first mating surface and the second mating surface, respectively. Since the protrusion is inserted into the groove and can abut against at least one of the first mating surface and the second mating surface, the elastic element can be bidirectionally limited in the axial direction, so as to prevent the elastic element from moving out of the bushing or falling off due to load fluctuation.

[0018] In addition, the combination of protrusions and grooves can achieve axial upper limit of elastic element, while the structure is simple, easy to process and manufacture, and helps to reduce the production cost of bushing assembly.

[0019] In some technical solutions, optionally, there are multiple mating parts, with at least two mating parts located on opposite sides of the elastic member, and the limiting part corresponding to the mating part one by one.

[0020] In this technical solution, the number of mating parts is limited to multiple. Specifically, at least two mating parts are located on opposite sides of the elastic element. Optionally, at least two mating parts are located on the left and right sides of the elastic element, that is, at least two mating parts are located on opposite sides of the width direction of the elastic element. The limiting part and the mating part correspond one-to-one, which can improve the uniformity of force on the elastic element, which is beneficial to extend the service life of the elastic element and improve the reliability of the compressor.

[0021] In some technical solutions, optionally, at least two mating parts are arranged opposite each other.

[0022] In this technical solution, since at least two mating parts are arranged opposite each other, that is, at least two mating parts are symmetrically distributed on opposite sides of the elastic element, the uniformity of the force on the elastic element can be further improved, which is conducive to extending the service life of the elastic element.

[0023] In some technical solutions, optionally, the mating part includes a first mating surface and a second mating surface; along the axial direction of the bushing, when one of the first mating surface and the second mating surface abuts against the limiting part, the distance between the other of the first mating surface and the limiting part is less than or equal to 2 mm.

[0024] In this technical solution, the elastic element cannot move axially over a long distance within the bushing, thus preventing it from moving out or falling off due to load fluctuations. This also prevents the elastic element from moving out and scraping against the end face of the moving volute hub, which could lead to breakage. At the same time, it ensures a certain installation gap between the elastic element and the bushing, which helps to reduce the machining accuracy requirements of the bushing and the elastic element and improves the installation efficiency of the bushing assembly.

[0025] In some technical solutions, the bushing may optionally also be provided with a groove that extends axially along the bushing, and a portion of the elastic element is located within the groove.

[0026] In this technical solution, the bushing is also provided with a groove. Specifically, the groove extends along the axial direction of the bushing, and part of the elastic element is located in the groove, so that the elastic element can be limited in the circumferential direction of the bushing, thereby further improving the installation stability and reliability of the elastic element.

[0027] In some technical solutions, optionally, one end of the slot extends through the end face of the bushing along the axial direction of the bushing; and / or the limiting portion is configured to be located close to the slot.

[0028] In this technical solution, one end of the slot passes through the end face of the bushing. When installing the elastic element, the elastic element can be directly inserted into the slot through the inlet on the end face of the bushing, which facilitates the assembly between the elastic element and the bushing and helps to improve the installation efficiency of the compressor.

[0029] The limiting part is located near the slot. It can be understood that the elastic element is generally a spring structure with a certain elasticity, that is, the elastic element is a sheet structure. By placing the limiting part near the slot, the elastic element can be inserted into the slot to achieve assembly. At the same time, the mating part and the limiting part on the elastic element can cooperate, which further facilitates the assembly between the elastic element and the bushing and simplifies the structure of the elastic element.

[0030] In some technical solutions, the inner wall of the bushing is optionally provided with at least one clearance surface, and the at least one clearance surface is located on the side of the elastic element away from the eccentric portion.

[0031] In this technical solution, the inner wall of the bushing is provided with at least one clearance surface. Specifically, at least one clearance surface is located on the side of the elastic element away from the eccentric part, which can provide a larger deformation space for the elastic element and ensure that when the compressor stops, the moving scroll and the stationary scroll can be separated quickly in the radial direction to achieve unloading, shorten the compressor stop reversal time, and improve the compressor's start-up capability.

[0032] In some technical solutions, the elastic element optionally includes a spring.

[0033] In this technical solution, since the elastic element is a spring, the moving scroll and the stationary scroll can be quickly separated radially when the compressor is not started or stopped, thereby achieving unloading and reducing the production cost of the bushing assembly.

[0034] According to a second aspect of the present invention, a bushing assembly is provided for use in a compressor. The compressor includes a moving scroll and a drive shaft. The drive shaft includes an eccentric portion disposed on the moving scroll. The bushing assembly includes: a bushing disposed radially between the eccentric portion and the moving scroll, and the bushing having a limiting portion; an elastic member disposed within the bushing and between the bushing and the eccentric portion; and a mating portion disposed on the elastic member, the mating portion including a first mating surface and a second mating surface, the first mating surface and the second mating surface being located on opposite sides of the elastic member in the width direction. The first mating surface is capable of abutting against the limiting portion to restrict the movement of the elastic member in a first direction, and the second mating surface is capable of abutting against the limiting portion to restrict the movement of the elastic member in a second direction, the second direction being opposite to the first direction.

[0035] The bushing assembly provided in this embodiment includes a bushing, an elastic element, and a mating part. Specifically, along the radial direction of the drive shaft, the bushing is located between the eccentric part of the drive shaft and the moving scroll, and the elastic element is located between the bushing and the eccentric part. It is understood that, due to the elastic element's deformation, when the compressor is not started or stopped, the elastic element can cause the moving scroll and the compressor's stationary scroll to separate radially. Specifically, when the compressor starts, because the moving scroll and stationary scroll separate radially, the compressor's compression is relatively slow, and the resistance torque rises more slowly, thereby improving the compressor's starting capability. Moreover, when the compressor stops, because the moving scroll and stationary scroll separate rapidly radially, rapid unloading can be achieved, thereby shortening the shutdown reversal time.

[0036] When the compressor is running, the drive shaft transmits the drive load to the moving scroll through the eccentric part and the bushing, so that the moving scroll can rotate relative to the stationary scroll to compress the gas in the compression chamber formed by the moving scroll and the stationary scroll. However, when the bushing transmits the drive load of the eccentric part to the moving scroll, the magnitude of the load fluctuates and the direction also changes, which makes the elastic element easy to move out or fall off from the bushing.

[0037] The mating part is provided on the elastic member, wherein the mating part includes a first mating surface and a second mating surface, and the first mating surface and the second mating surface are respectively located on both sides of the width direction of the elastic member, that is, the first mating surface and the second mating surface are respectively located on the left and right sides of the elastic member.

[0038] Specifically, the first mating surface abuts against the limiting part to restrict the movement of the elastic element along the first direction, optionally restricting the elastic element to move downward. The second mating surface abuts against the limiting part to restrict the movement of the elastic element along the second direction, which is opposite to the first direction, optionally restricting the elastic element to move upward. In other words, under compressor operation and load, the engagement of the first and second mating surfaces with the limiting part enables bidirectional axial limiting of the elastic element, thus restricting its downward or upward movement. This prevents the elastic element from moving out of the bushing or falling off due to load fluctuations, and prevents it from scraping against the end face of the moving scroll hub, which could lead to breakage and failure. This improves the reliability of the compressor while ensuring the function of the bushing assembly.

[0039] In some technical solutions, optionally, either the first mating surface or the second mating surface extends along the width direction of the elastic element.

[0040] In this technical solution, since either the first mating surface or the second mating surface extends along the width direction of the elastic element, that is, either the first mating surface or the second mating surface extends horizontally. In other words, the first mating surface and the second mating surface are both horizontally extending planes. Optionally, the first mating surface is a downward-facing plane, and the second mating surface is an upward-facing plane. Alternatively, the first mating surface is an upward-facing plane, and the second mating surface is a downward-facing plane.

[0041] Since the first mating surface can abut against the limiting part to restrict the downward movement of the elastic element, and the second mating surface can abut against the limiting part to restrict the upward movement of the elastic element, under the load of the compressor operation, the elastic element can be bidirectionally limited in the axial direction by the cooperation of the first and second mating surfaces with the limiting part, so as to prevent the elastic element from moving out of the bushing or falling off due to load fluctuation.

[0042] In some technical solutions, the limiting part may optionally include a first limiting surface and a second limiting surface, the first limiting surface and the second limiting surface are arranged along the circumference of the bushing, the first mating surface can abut against the first limiting surface to restrict the movement of the elastic member in the first direction, and the second mating surface can abut against the second limiting surface to restrict the movement of the elastic member in the second direction.

[0043] In this technical solution, the limiting part is defined as including a first limiting surface and a second limiting surface. Specifically, the first and second limiting surfaces are arranged circumferentially along the bushing, and the first mating surface can abut against the first limiting surface to restrict the elastic element from moving in a first direction (downward). The second mating surface can abut against the second limiting surface to restrict the elastic element from moving in a second direction (upward). Under compressor operation and load, the engagement of the first mating surface and the first limiting surface, as well as the engagement of the second mating surface and the second limiting surface, can bidirectionally limit the elastic element in the axial direction, that is, it can restrict the elastic element from moving downward or upward, preventing the elastic element from moving out of the bushing or falling off due to load fluctuations, and preventing the elastic element from moving out and scraping against the end face of the moving scroll hub, thereby causing the elastic element to break and fail. This improves the reliability of the compressor while ensuring the function of the bushing assembly.

[0044] Furthermore, by using surface-to-surface mating to achieve bidirectional axial limiting of the elastic element, the reliability of the limiting can be improved.

[0045] In some technical solutions, optionally, the mating part includes a first protrusion and a second protrusion, the first protrusion and the second protrusion are respectively located on both sides of the elastic member in the width direction, the side of the first protrusion away from the top of the elastic member includes a first mating surface, and the side of the second protrusion facing the top of the elastic member includes a second mating surface; the limiting part includes a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are arranged along the circumference of the bushing, the first protrusion is inserted into the first limiting groove, the bottom wall of the first limiting groove includes a first limiting surface, the second protrusion is inserted into the second limiting groove, and the top wall of the second limiting groove includes a second limiting surface.

[0046] In this technical solution, the mating portion includes a first protrusion and a second protrusion. Specifically, the first protrusion and the second protrusion are located on opposite sides of the elastic member in the width direction. The side of the first protrusion facing away from the top of the elastic member includes a first mating surface, that is, the first mating surface is the side of the first protrusion facing downwards. The side of the second protrusion facing the top of the elastic member includes a second mating surface, that is, the second mating surface is the side of the second protrusion facing upwards.

[0047] The limiting part includes a first limiting groove and a second limiting groove, which are arranged circumferentially along the bushing. The first mating surface abuts against the bottom wall (first limiting surface) of the first limiting groove to restrict the downward movement of the elastic element. The second mating surface abuts against the top wall (second limiting surface) of the second limiting groove to restrict the upward movement of the elastic element. Under compressor operation and load, the elastic element can be bidirectionally limited in the axial direction, preventing it from moving out of or falling off the bushing due to load fluctuations.

[0048] Moreover, since the first protrusion is inserted into the first limiting groove and the second protrusion is inserted into the second limiting groove, while achieving bidirectional axial limiting of the elastic element, it can also limit the elastic element in the circumferential direction, thereby improving the installation stability of the elastic element in the bushing. This ensures that when the compressor stops, the moving scroll and the stationary scroll can quickly separate radially, achieving unloading, shortening the compressor's shutdown reversal time, and improving the compressor's starting capability.

[0049] In some technical solutions, optionally, at least a portion of the first limiting groove extends circumferentially along the bushing; and / or along the axial direction of the bushing, the top end of the first limiting groove penetrates the end face of the bushing.

[0050] In this technical solution, at least part of the first limiting groove extends along the circumferential direction of the bushing. When installing the elastic element, the first protrusion is first inserted into the first limiting groove. Since the first limiting groove has a certain width in the circumferential direction, the elastic element can be rotated at a certain angle so that the second protrusion is inserted into the second limiting groove, which facilitates the installation of the elastic element and helps to improve the installation efficiency of the compressor.

[0051] The top of the first limiting groove extends through the end face of the bushing along the axial direction of the bushing. That is, the first limiting groove has an opening on the end face of the bushing. During installation, the first protrusion can be directly inserted into the first limiting groove from the opening, which helps to further reduce the installation difficulty of the elastic element and improve the installation efficiency.

[0052] In some technical solutions, the bushing may optionally include a bushing body and a stop portion, wherein a first limiting groove is provided in the bushing body, the stop portion is connected to the top of the bushing body and forms a second limiting groove with the bushing body, and the stop portion includes a groove top wall.

[0053] In this technical solution, the bushing is defined as including a bushing body and a stop portion. Specifically, the stop portion is connected to the top of the bushing body, and the stop portion and the bushing body enclose a second limiting groove. Since the stop portion includes a groove top wall, that is, the upward-facing second mating surface can abut against one side wall (groove top wall) of the stop portion located within the second limiting groove, thereby preventing the elastic element from moving upward from inside the bushing. This prevents the elastic element from moving out and scraping against the end face of the moving scroll hub, which could lead to breakage of the elastic element and failure. This improves the reliability of the compressor while ensuring the function of the bushing assembly.

[0054] In some technical solutions, optionally, along the axial direction of the bushing, the first protrusion and the second protrusion are configured to be close to the two ends of the elastic element, respectively.

[0055] In this technical solution, specifically, the first protrusion is close to one end of the elastic element along its axial direction, and the second protrusion is close to the other end of the elastic element along its axial direction. Optionally, the first protrusion is close to the top end of the elastic element, and the second protrusion is close to the bottom end of the elastic element; or, the first protrusion is close to the bottom end of the elastic element, and the second protrusion is close to the top end of the elastic element. The specific configuration can be adjusted according to actual needs.

[0056] Since the first protrusion and the second protrusion are close to the two ends of the elastic member in the axial direction, the first protrusion and the second protrusion can form a downward first mating surface and an upward second mating surface, respectively, which can then cooperate with the limiting part to achieve bidirectional limiting of the elastic member in the axial direction.

[0057] According to a third aspect of the present invention, a compressor is provided, comprising a bushing assembly as provided in any of the above technical solutions, and thus possessing all the beneficial technical effects of the bushing assembly, which will not be repeated here.

[0058] According to a fourth aspect of the present invention, a refrigeration device is provided, comprising a bushing assembly or compressor as provided in any of the above technical solutions, and thus possessing all the beneficial technical effects of the bushing assembly or compressor, which will not be repeated here.

[0059] Additional aspects and advantages of the present invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of the present invention. Attached Figure Description

[0060] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0061] Figure 1 A schematic diagram of the bushing assembly according to a first embodiment of the present invention is shown;

[0062] Figure 2 A schematic diagram of the bushing according to the first embodiment of the present invention is shown;

[0063] Figure 3 A schematic diagram of the structure of the elastic element according to the first embodiment of the present invention is shown;

[0064] Figure 4 A schematic diagram of the bushing assembly according to a second embodiment of the present invention is shown;

[0065] Figure 5 A schematic diagram of the bushing according to a second embodiment of the present invention is shown;

[0066] Figure 6 A schematic diagram of the structure of the elastic element according to a second embodiment of the present invention is shown;

[0067] Figure 7 A partial structural schematic diagram of a compressor according to a first or second embodiment of the present invention is shown;

[0068] Figure 8 A schematic diagram of the bushing assembly according to a third embodiment of the present invention is shown;

[0069] Figure 9 A schematic diagram of the bushing according to a third embodiment of the present invention is shown;

[0070] Figure 10 A schematic diagram of the structure of the elastic element according to a third embodiment of the present invention is shown;

[0071] Figure 11 A schematic diagram of the bushing assembly according to a fourth embodiment of the present invention is shown;

[0072] Figure 12 A schematic diagram of the bushing according to the fourth embodiment of the present invention is shown;

[0073] Figure 13 A schematic diagram of the structure of the elastic element according to the fourth embodiment of the present invention is shown;

[0074] Figure 14 A partial structural schematic diagram of a compressor according to a fourth embodiment of the present invention is shown;

[0075] Figure 15 A partial structural schematic diagram of a compressor according to an embodiment of the present invention is shown.

[0076] in, Figures 1 to 15 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0077] 100 Bushing assembly, 110 Bushing, 111 Limiting part, 112 First limiting surface, 113 Second limiting surface, 114 First limiting groove, 115 Second limiting groove, 116 Groove bottom wall, 117 Groove top wall, 118 Body, 119 Stop part, 120 Elastic element, 130 Mating part, 132 First mating surface, 133 Second mating surface, 136 First protrusion, 137 Second protrusion, 140 Protrusion, 150 Groove, 160 First end face, 170 Slot, 180 Clearance surface, 200 Compressor, 210 Moving scroll, 220 Drive shaft, 221 Eccentric part, 230 Stationary scroll. Detailed Implementation

[0078] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0079] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0080] The following reference Figures 1 to 15 This invention describes a bushing assembly 100, a compressor 200, and a refrigeration device provided according to some embodiments of the present invention.

[0081] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 15 As shown, a bushing assembly 100 is proposed for a compressor 200. The compressor 200 includes a moving scroll 210 and a drive shaft 220. The drive shaft 220 includes an eccentric portion 221 disposed on the moving scroll 210. The bushing assembly 100 includes: a bushing 110 along the radial direction of the drive shaft 220, the bushing 110 being disposed between the eccentric portion 221 and the moving scroll 210, and the bushing 110 having a limiting portion 111; and an elastic member 120 disposed within the bushing 110 and located at... Between the bushing 110 and the eccentric portion 221; a mating portion 130 is provided on the elastic member 120. One of the mating portion 130 and the limiting portion 111 includes a first mating surface 132 and a second mating surface 133. The first mating surface 132 and the second mating surface 133 are arranged along the axial direction of the bushing 110. The other of the mating portion 130 and the limiting portion 111 is located between the first mating surface 132 and the second mating surface 133 and can abut against at least one of the first mating surface 132 and the second mating surface 133.

[0082] The bushing assembly 100 provided in this embodiment of the present invention includes a bushing 110, an elastic element 120, and a mating portion 130. Specifically, along the radial direction of the drive shaft 220, the bushing 110 is located between the eccentric portion 221 and the moving scroll 210 of the drive shaft 220, and the elastic element 120 is located between the bushing 110 and the eccentric portion 221. It can be understood that, due to the certain deformation of the elastic element 120, when the compressor 200 is not started or stopped, the elastic element 120 can cause the moving scroll 210 and the stationary scroll 230 of the compressor 200 to separate radially. Specifically, when the compressor 200 starts, due to the radial separation of the moving scroll 210 and the stationary scroll 230, the compression of the compressor 200 will be relatively slow, and the resistance torque will rise more slowly, thereby improving the starting capability of the compressor 200. Moreover, when the compressor 200 stops, the moving scroll 210 and the stationary scroll 230 quickly separate radially, which can achieve rapid unloading, thereby shortening the time for shutdown reversal.

[0083] When the compressor 200 is running, the drive shaft 220 transmits the drive load to the moving scroll 210 through the eccentric part 221 and the bushing 110, so that the moving scroll 210 can rotate relative to the stationary scroll 230 to compress the gas in the compression chamber formed by the moving scroll 210 and the stationary scroll 230. However, when the bushing 110 transmits the drive load of the eccentric part 221 to the moving scroll 210, the magnitude of the load fluctuates and the direction also changes, which causes the elastic element 120 to easily move out or fall off from the bushing 110.

[0084] The mating part 130 is provided on the elastic member 120. Specifically, when the mating part 130 includes the first mating surface 132 and the second mating surface 133, the limiting part 111 is located between the first mating surface 132 and the second mating surface 133. Alternatively, when the limiting part 111 includes the first mating surface 132 and the second mating surface 133, the mating part 130 is located between the first mating surface 132 and the second mating surface 133. The specific configuration can be made according to actual needs.

[0085] Since the first mating surface 132 and the second mating surface 133 are arranged along the axial direction of the bushing 110, and when the mating part 130 includes the first mating surface 132 and the second mating surface 133, the limiting part 111 can abut against at least one of the first mating surface 132 and the second mating surface 133; or, when the limiting part 111 includes the first mating surface 132 and the second mating surface 133, the mating part 130 can abut against at least one of the first mating surface 132 and the second mating surface 133. That is to say, in When the compressor 200 is under load, the cooperation of the mating part 130 and the limiting part 111 can limit the elastic element 120 in both directions in the axial direction. That is, it can restrict the elastic element 120 from moving downward or upward, and prevent the elastic element 120 from moving out or falling off from the bushing 110 due to load fluctuations. It can also prevent the elastic element 120 from moving out and scraping against the end face of the moving scroll hub, which would lead to the elastic element 120 breaking and causing failure. This improves the reliability of the compressor while ensuring the function of the bushing assembly 100.

[0086] Furthermore, during the installation of the bushing assembly 100, when the elastic element 120 is inserted axially into the bushing 110, the elastic element 120 is in place when the mating part 130 and the limiting part 111 are engaged, i.e., when the limiting part 111 or the mating part 130 is located between the first mating surface 132 and the second mating surface 133. In other words, by providing the mating part 130 and the limiting part 111, the elastic element 120 can be smoothly inserted into place.

[0087] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, one of the mating part 130 and the limiting part 111 is a protrusion 140 and the other is a groove 150, with the protrusion 140 inserted into the groove 150; wherein, along the axial direction of the bushing 110, the two opposite groove walls of the groove 150 are the first mating surface 132 and the second mating surface 133, respectively.

[0088] In this embodiment, specifically, the limiting part 111 is a protrusion 140, and the mating part 130 is a groove 150. Along the axial direction of the bushing 110, the upper and lower groove walls of the groove 150 are respectively the first mating surface 132 and the second mating surface 133. Since the protrusion 140 is inserted into the groove 150 and the protrusion 140 can abut against at least one of the first mating surface 132 and the second mating surface 133, the elastic member 120 can be bidirectionally limited in the axial direction, so as to prevent the elastic member 120 from moving out or falling off from the bushing 110 due to load fluctuations.

[0089] The limiting part 111 is a groove 150, and the mating part 130 is a protrusion 140. Along the axial direction of the bushing 110, the upper and lower groove walls of the groove 150 are respectively the first mating surface 132 and the second mating surface 133. Since the protrusion 140 is inserted into the groove 150 and can abut against at least one of the first mating surface 132 and the second mating surface 133, the elastic element 120 can be bidirectionally limited in the axial direction, so as to prevent the elastic element 120 from moving out or falling off from the bushing 110 due to load fluctuation.

[0090] In addition, the cooperation between the protrusion 140 and the groove 150 can achieve axial upper limit of the elastic element 120, while the structure is simple, easy to process and manufacture, and helps to reduce the production cost of the bushing assembly 100.

[0091] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, optionally, there are multiple mating parts 130, with at least two mating parts 130 located on opposite sides of the elastic member 120, and the limiting part 111 corresponding to the mating part 130 one by one.

[0092] In this embodiment, the number of mating parts 130 is limited to a plurality. Specifically, at least two mating parts 130 are located on opposite sides of the elastic member 120. Optionally, at least two mating parts 130 are located on the left and right sides of the elastic member 120, that is, at least two mating parts 130 are located on both sides of the width direction of the elastic member 120. The limiting part 111 corresponds one-to-one with the mating part 130, which can improve the uniformity of force on the elastic member 120, which is beneficial to extend the service life of the elastic member 120 and improve the reliability of the compressor 200.

[0093] Furthermore, it is understood that the multiple mating parts 130 respectively cooperate with the multiple limiting parts 111 to limit the movement, thereby improving the limiting effect of the elastic element 120 in the axial direction. Under the operation of the compressor 200 under load, it can further prevent the elastic element 120 from moving out or falling off from the bushing 110 due to load fluctuations, thereby improving the reliability of the compressor.

[0094] like Figure 1 , Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, optionally, at least two mating parts 130 are arranged opposite each other.

[0095] In this embodiment, since at least two mating parts 130 are arranged opposite each other, that is, at least two mating parts 130 are symmetrically distributed on opposite sides of the elastic member 120, the uniformity of force on the elastic member 120 can be further improved, which is beneficial to extending the service life of the elastic member 120.

[0096] In some embodiments, optionally, the mating portion 130 includes a first mating surface 132 and a second mating surface 133; along the axial direction of the bushing 110, when one of the first mating surface 132 and the second mating surface 133 abuts against the limiting portion 111, the distance between the other of the first mating surface 132 and the limiting portion 111 is less than or equal to 2 mm.

[0097] In this embodiment, specifically, along the axial direction of the bushing 110, the first mating surface 132 abuts against the limiting portion 111, and the distance between the second mating surface 133 and the limiting portion 111 is less than or equal to 2 mm. It can be understood that, at this time, the second mating surface 133 can abut against the limiting portion 111, i.e., the distance is equal to 0 mm, or the second mating surface 133 and the limiting portion 111 maintain a distance of less than or equal to 2 mm. Alternatively, along the axial direction of the bushing 110, the second mating surface 133 abuts against the limiting portion 111, and the distance between the first mating surface 132 and the limiting portion 111 is less than or equal to 2 mm. It can be understood that, at this time, the first mating surface 132 can abut against the limiting portion 111, i.e., the distance is equal to 0 mm, or the first mating surface 132 and the limiting portion 111 maintain a distance of less than or equal to 2 mm.

[0098] In other words, the elastic element 120 is prevented from moving axially over a long distance within the bushing 110, thus avoiding the elastic element 120 from moving out or falling off the bushing 110 due to load fluctuations. This also prevents the elastic element 120 from moving out and scraping against the end face of the moving volute hub, which could lead to breakage of the elastic element 120. At the same time, a certain installation gap is maintained between the elastic element 120 and the bushing 110, which helps to reduce the machining accuracy requirements of the bushing 110 and the elastic element 120 and improves the installation efficiency of the bushing assembly 100.

[0099] Optionally, the spacing can be any one of 0mm, 0.5mm, 1mm and 2mm.

[0100] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 7 As shown, in some embodiments, the bushing 110 may optionally also be provided with a groove 170 extending axially along the bushing 110, and a portion of the elastic member 120 is located within the groove 170.

[0101] In this embodiment, the bushing 110 is further provided with a groove 170. Specifically, the groove 170 extends along the axial direction of the bushing 110, and part of the elastic element 120 is located in the groove 170, thereby limiting the elastic element 120 in the circumferential direction of the bushing 110, further improving the installation stability and reliability of the elastic element 120.

[0102] Optionally, the number of card slots 170 can be multiple.

[0103] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, one end of the slot 170 extends through the end face of the bushing 110 along the axial direction of the bushing 110; and / or the limiting portion 111 is configured to be disposed close to the slot 170.

[0104] In this embodiment, one end of the slot 170 passes through the end face of the bushing 110. When installing the elastic member 120, the elastic member 120 can be directly inserted into the slot 170 through the inlet of the end face of the bushing 110, which facilitates the assembly between the elastic member 120 and the bushing 110 and helps to improve the installation efficiency of the compressor 200.

[0105] The limiting part 111 is located near the slot 170. It can be understood that the elastic element 120 is generally a spring structure with a certain elasticity, that is, the elastic element 120 is a sheet structure. When the limiting part 111 is located near the slot 170, the elastic element 120 is inserted into the slot 170 to achieve assembly. At the same time, the mating part 130 on the elastic element 120 and the limiting part 111 can cooperate, which further facilitates the assembly between the elastic element 120 and the bushing 110 and simplifies the structure of the elastic element 120.

[0106] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the first end face 160 is the end face of the bushing 110.

[0107] like Figure 2 and Figure 5 As shown, in some embodiments, optionally, the inner wall of the bushing 110 is provided with at least one clearance surface 180, and the at least one clearance surface 180 is located on the side of the elastic member 120 away from the eccentric portion 221.

[0108] In this embodiment, the inner wall of the bushing 110 is provided with at least one clearance surface 180. Specifically, at least one clearance surface 180 is located on the side of the elastic member 120 away from the eccentric portion 221, which can provide a larger deformation space for the elastic member 120. This ensures that when the compressor 200 stops, the moving scroll 210 and the stationary scroll 230 can be quickly separated radially to achieve unloading, shorten the compressor 200 stop reversal time, and improve the compressor 200's start-up capability.

[0109] Optionally, there may be multiple clearance surfaces 180, including a first clearance surface and a second clearance surface, wherein the first clearance surface is located near the first limiting groove 114 and the second clearance surface is located near the second limiting groove 115.

[0110] In some embodiments, the elastic element 120 may optionally include a spring.

[0111] In this embodiment, since the elastic element 120 is a spring, when the compressor 200 is not started or stopped, the moving scroll 210 and the stationary scroll 230 can be quickly separated radially, which can achieve unloading and reduce the production cost of the bushing assembly 100.

[0112] According to a second aspect of the embodiments of the present invention, such as Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, a bushing assembly 100 is provided for a compressor 200. The compressor 200 includes a moving scroll 210 and a drive shaft 220. The drive shaft 220 includes an eccentric portion 221 disposed on the moving scroll 210. The bushing assembly 100 includes: a bushing 110 along the radial direction of the drive shaft 220, disposed between the eccentric portion 221 and the moving scroll 210, and having a limiting portion 111; and an elastic member 120 disposed within the bushing 110 and located within the bushing 110. Between the eccentric portion 221 and the elastic member 120; a mating portion 130 is provided on the elastic member 120. The mating portion 130 includes a first mating surface 132 and a second mating surface 133. The first mating surface 132 and the second mating surface 133 are respectively located on both sides of the elastic member 120 in the width direction. The first mating surface 132 can abut against the limiting portion 111 to restrict the elastic member 120 from moving in the first direction. The second mating surface 133 can abut against the limiting portion 111 to restrict the elastic member 120 from moving in the second direction, which is opposite to the first direction.

[0113] The bushing assembly 100 provided in this embodiment of the present invention includes a bushing 110, an elastic element 120, and a mating portion 130. Specifically, along the radial direction of the drive shaft 220, the bushing 110 is located between the eccentric portion 221 and the moving scroll 210 of the drive shaft 220, and the elastic element 120 is located between the bushing 110 and the eccentric portion 221. It can be understood that, due to the certain deformation of the elastic element 120, when the compressor 200 is not started or stopped, the elastic element 120 can cause the moving scroll 210 and the stationary scroll 230 of the compressor 200 to separate radially. Specifically, when the compressor 200 starts, due to the radial separation of the moving scroll 210 and the stationary scroll 230, the compression of the compressor 200 will be relatively slow, and the resistance torque will rise more slowly, thereby improving the starting capability of the compressor 200. Moreover, when the compressor 200 stops, the moving scroll 210 and the stationary scroll 230 quickly separate radially, which can achieve rapid unloading, thereby shortening the time for shutdown reversal.

[0114] When the compressor 200 is running, the drive shaft 220 transmits the drive load to the moving scroll 210 through the eccentric part 221 and the bushing 110, so that the moving scroll 210 can rotate relative to the stationary scroll 230 to compress the gas in the compression chamber formed by the moving scroll 210 and the stationary scroll 230. However, when the bushing 110 transmits the drive load of the eccentric part 221 to the moving scroll 210, the magnitude of the load fluctuates and the direction also changes, which causes the elastic element 120 to easily move out or fall off from the bushing 110.

[0115] The mating part 130 is provided on the elastic member 120. The mating part 130 includes a first mating surface 132 and a second mating surface 133. The first mating surface 132 and the second mating surface 133 are respectively located on both sides of the width direction of the elastic member 120, that is, the first mating surface 132 and the second mating surface 133 are respectively located on the left and right sides of the elastic member 120.

[0116] Specifically, the first mating surface 132 abuts against the limiting part 111 to restrict the movement of the elastic member 120 along the first direction, optionally restricting the elastic member 120 to move downward. The second mating surface 133 abuts against the limiting part 111 to restrict the movement of the elastic member 120 along the second direction, which is opposite to the first direction, optionally restricting the elastic member 120 to move upward. In other words, under the load of the compressor 200, the engagement of the first mating surface 132 and the second mating surface 133 with the limiting part 111 respectively enables bidirectional axial limiting of the elastic member 120, i.e., restricting the elastic member 120 from moving downward or upward, preventing the elastic member 120 from moving out or falling off from the bushing 110 due to load fluctuations, and preventing the elastic member 120 from moving out and scraping against the end face of the hub of the moving scroll 210, thereby causing the elastic member 120 to break and fail. This improves the reliability of the compressor 200 while ensuring the function of the bushing assembly 100.

[0117] like Figure 10 and Figure 13 As shown, in some embodiments, optionally either the first mating surface 132 or the second mating surface 133 extends along the width direction of the elastic member 120.

[0118] In this embodiment, since either the first mating surface 132 or the second mating surface 133 extends along the width direction of the elastic member 120, that is, either the first mating surface 132 or the second mating surface 133 extends in a horizontal direction. In other words, the first mating surface 132 and the second mating surface 133 are both horizontally extending planes. Optionally, the first mating surface 132 is a downward-facing plane, and the second mating surface 133 is an upward-facing plane. Alternatively, the first mating surface 132 is an upward-facing plane, and the second mating surface 133 is a downward-facing plane.

[0119] Since the first mating surface 132 can abut against the limiting part 111 to restrict the elastic member 120 from moving downward, and the second mating surface 133 can abut against the limiting part 111 to restrict the elastic member 120 from moving upward, under the load of the compressor 200, the elastic member 120 can be bidirectionally limited in the axial direction by the cooperation of the first mating surface 132 and the second mating surface 133 with the limiting part 111, so as to avoid the elastic member 120 from moving out or falling off from the bushing 110 due to load fluctuation.

[0120] like Figure 9 and Figure 12As shown, in some embodiments, optionally, the limiting portion 111 includes a first limiting surface 112 and a second limiting surface 113, the first limiting surface 112 and the second limiting surface 113 are arranged along the circumference of the bushing 110, the first mating surface 132 can abut against the first limiting surface 112 to restrict the elastic member 120 from moving in the first direction, and the second mating surface 133 can abut against the second limiting surface 113 to restrict the elastic member 120 from moving in the second direction.

[0121] In this embodiment, the limiting portion 111 includes a first limiting surface 112 and a second limiting surface 113. Specifically, the first limiting surface 112 and the second limiting surface 113 are arranged circumferentially along the bushing 110, and the first mating surface 132 can abut against the first limiting surface 112 to restrict the elastic member 120 from moving in the first direction (downward). The second mating surface 133 can abut against the second limiting surface 113 to restrict the elastic member 120 from moving in the second direction (upward). Under the load of compressor 200 operation, the first mating surface 132 and the first limiting surface 112, and the second mating surface 133 and the second limiting surface 113, can limit the elastic element 120 in both directions in the axial direction. That is, it can restrict the elastic element 120 from moving downward or upward, and prevent the elastic element 120 from moving out or falling off from the bushing 110 due to load fluctuations. It can also prevent the elastic element 120 from moving out and scraping against the end face of the hub of the moving scroll 210, which would lead to the breakage of the elastic element 120 and cause failure. Under the premise of ensuring the function of the bushing assembly 100, the reliability of compressor 200 is improved.

[0122] Furthermore, by using surface-to-surface mating to achieve bidirectional axial limiting of the elastic element 120, the reliability of the limiting can be improved.

[0123] like Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown, in some embodiments, optionally, the mating portion 130 includes a first protrusion 136 and a second protrusion 137, the first protrusion 136 and the second protrusion 137 are respectively located on both sides of the elastic member 120 in the width direction, the side of the first protrusion 136 away from the top of the elastic member 120 includes a first mating surface 132, and the side of the second protrusion 137 facing the top of the elastic member 120 includes a second mating surface 133; the limiting portion 111 includes a first limiting groove 114 and a second limiting groove 115, the first limiting groove 114 and the second limiting groove 115 are arranged along the circumference of the bushing 110, the first protrusion 136 is inserted into the first limiting groove 114, the bottom wall 116 of the first limiting groove 114 includes a first limiting surface 112, the second protrusion 137 is inserted into the second limiting groove 115, and the top wall 117 of the second limiting groove 115 includes a second limiting surface 113.

[0124] In this embodiment, the mating portion 130 is defined to include a first protrusion 136 and a second protrusion 137. Specifically, the first protrusion 136 and the second protrusion 137 are located on opposite sides of the elastic member 120 in the width direction. The side of the first protrusion 136 facing away from the top of the elastic member 120 includes a first mating surface 132, that is, the first mating surface 132 is the downward-facing side of the first protrusion 136. The side of the second protrusion 137 facing the top of the elastic member 120 includes a second mating surface 133, that is, the second mating surface 133 is the upward-facing side of the second protrusion 137.

[0125] The limiting part 111 includes a first limiting groove 114 and a second limiting groove 115, which are arranged circumferentially along the bushing 110. Since the first mating surface 132 can abut against the bottom wall 116 (first limiting surface 112) of the first limiting groove 114, it restricts the downward movement of the elastic member 120. The second mating surface 133 can abut against the top wall 117 (second limiting surface 113) of the second limiting groove 115, it restricts the upward movement of the elastic member 120. Under the load of the compressor 200, the elastic member 120 can be bidirectionally limited in the axial direction, preventing the elastic member 120 from moving out or falling off from the bushing 110 due to load fluctuations.

[0126] Furthermore, since the first protrusion 136 is inserted into the first limiting groove 114 and the second protrusion 137 is inserted into the second limiting groove 115, while achieving bidirectional axial limiting of the elastic element 120, it can also limit the elastic element 120 in the circumferential direction, thereby improving the installation stability of the elastic element 120 in the bushing 110. Under the operation and load of the compressor 200, it further prevents the elastic element 120 from moving out or falling off from the bushing 110, thereby improving the reliability of the compressor 200.

[0127] like Figure 11 and Figure 12 As shown, in some embodiments, optionally, at least a portion of the first limiting groove 114 extends circumferentially along the bushing 110; and / or along the axial direction of the bushing 110, the top end of the first limiting groove 114 penetrates the end face of the bushing 110.

[0128] In this embodiment, at least a portion of the first limiting groove 114 extends circumferentially along the bushing 110. When installing the elastic member 120, the first protrusion 136 is first inserted into the first limiting groove 114. Since the first limiting groove 114 has a certain width in the circumferential direction, the elastic member 120 can be rotated at a certain angle so that the second protrusion 137 is inserted into the second limiting groove 115, which facilitates the installation of the elastic member 120 and helps to improve the installation efficiency of the compressor 200.

[0129] The top end of the first limiting groove 114 extends through the end face of the bushing 110 along the axial direction of the bushing 110. That is, the first limiting groove 114 has an opening on the end face of the bushing 110. During installation, the first protrusion 136 can be directly inserted into the first limiting groove 114 through the opening, which helps to further reduce the installation difficulty of the elastic element 120 and improve the installation efficiency.

[0130] like Figure 9 , Figure 11 and Figure 12 As shown, the first end face 160 is the end face of the bushing 110.

[0131] like Figure 9 As shown, in some embodiments, optionally, the bushing 110 includes a bushing body 118 and a stop portion 119, wherein a first limiting groove 114 is provided on the bushing body 118, the stop portion 119 is connected to the top of the bushing body 118 and forms a second limiting groove 115 with the bushing body 118, and the stop portion 119 includes a groove top wall 117.

[0132] In this embodiment, the bushing 110 is defined to include a bushing body 118 and a stop portion 119. Specifically, the stop portion 119 is connected to the top of the bushing body 118, and the stop portion 119 and the bushing body 118 enclose a second limiting groove 115. Since the stop portion 119 includes a groove top wall 117, that is, the upward-facing second mating surface 133 can abut against one side wall (groove top wall 117) of the stop portion 119 located in the second limiting groove 115, thereby preventing the elastic member 120 from moving upward from the bushing 110, preventing the elastic member 120 from moving out and scraping the end face of the hub of the moving scroll 210, thereby causing the elastic member 120 to break and cause failure. While ensuring the function of the bushing assembly 100, the reliability of the compressor 200 is improved.

[0133] Optionally, the stop 119 and the sleeve body 118 are an integral structure.

[0134] Optionally, the stop part 119 and the sleeve body 118 are separate structures. During installation, the elastic element 120 is first inserted into the bushing 110, and then the stop part 119 and the sleeve body 118 are connected, which can reduce the installation difficulty and improve the installation efficiency.

[0135] like Figure 10 and Figure 13 As shown, in some embodiments, optionally, along the axial direction of the bushing 110, the first protrusion 136 and the second protrusion 137 are configured to be close to the two ends of the elastic member 120, respectively.

[0136] In this embodiment, specifically, the first protrusion 136 is located near one axial end of the elastic member 120, and the second protrusion 137 is located near the other axial end of the elastic member 120. Optionally, the first protrusion 136 is located near the top end of the elastic member 120, and the second protrusion 137 is located near the bottom end of the elastic member 120; or, the first protrusion 136 is located near the bottom end of the elastic member 120, and the second protrusion 137 is located near the top end of the elastic member 120. The specific configuration can be adjusted according to actual needs.

[0137] Since the first protrusion 136 and the second protrusion 137 are close to the two ends of the elastic member 120 in the axial direction, the first protrusion 136 and the second protrusion 137 can form a downward first mating surface 132 and an upward second mating surface 133 respectively, which can then cooperate with the limiting part 111 to achieve bidirectional limiting of the elastic member 120 in the axial direction.

[0138] Furthermore, since the first protrusion 136 and the second protrusion 137 are respectively provided on opposite sides of the elastic member 120, the uniformity of the force on the elastic member 120 can be improved, which is beneficial to extending the service life of the elastic member 120.

[0139] Optionally, along the axial direction of the bushing 110, when the first mating surface 132 and the first limiting surface 112 abut, the distance between the second mating surface 133 and the second limiting surface 113 is less than or equal to 2 mm. Alternatively, along the axial direction of the bushing 110, when the second mating surface 133 and the second limiting surface 113 abut, the distance between the first mating surface 132 and the first limiting surface 112 is less than or equal to 2 mm. This prevents the elastic element 120 from moving axially a long distance within the bushing 110.

[0140] like Figure 11 , Figure 12 and Figure 14 As shown, in some embodiments, the bushing 110 may optionally also be provided with a groove 170 extending axially along the bushing 110, and a portion of the elastic member 120 is located within the groove 170.

[0141] In this embodiment, the bushing 110 is further provided with a groove 170. Specifically, the groove 170 extends along the axial direction of the bushing 110, and part of the elastic element 120 is located in the groove 170, thereby limiting the elastic element 120 in the circumferential direction of the bushing 110, further improving the installation stability and reliability of the elastic element 120.

[0142] like Figure 11 and Figure 12 As shown, in some embodiments, optionally, one end of the slot 170 extends through the end face of the bushing 110 along the axial direction of the bushing 110; and / or the limiting portion 111 is configured to be disposed close to the slot 170.

[0143] In this embodiment, one end of the slot 170 passes through the end face of the bushing 110. When installing the elastic member 120, the elastic member 120 can be directly inserted into the slot 170 through the inlet of the end face of the bushing 110, which facilitates the assembly between the elastic member 120 and the bushing 110 and helps to improve the installation efficiency of the compressor 200.

[0144] The limiting part 111 is located near the slot 170. It can be understood that the elastic element 120 is generally a spring structure with a certain elasticity, that is, the elastic element 120 is a sheet structure. When the limiting part 111 is located near the slot 170, the elastic element 120 is inserted into the slot 170 to achieve assembly. At the same time, the mating part 130 on the elastic element 120 and the limiting part 111 can cooperate, which further facilitates the assembly between the elastic element 120 and the bushing 110 and simplifies the structure of the elastic element 120.

[0145] like Figure 12 As shown, in some embodiments, optionally, the inner wall of the bushing 110 is provided with at least one clearance surface 180, and the at least one clearance surface 180 is located on the side of the elastic member 120 away from the eccentric portion 221.

[0146] In this embodiment, the inner wall of the bushing 110 is provided with at least one clearance surface 180. Specifically, at least one clearance surface 180 is located on the side of the elastic member 120 away from the eccentric portion 221, which can provide a larger deformation space for the elastic member 120. This ensures that when the compressor 200 stops, the moving scroll 210 and the stationary scroll 230 can be quickly separated radially to achieve unloading, shorten the compressor 200 stop reversal time, and improve the compressor 200's start-up capability.

[0147] In some embodiments, the elastic element 120 may optionally include a spring.

[0148] In this embodiment, since the elastic element 120 is a spring, when the compressor 200 is not started or stopped, the moving scroll 210 and the stationary scroll 230 can be quickly separated radially, which can achieve unloading and reduce the production cost of the bushing assembly 100.

[0149] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 and Figure 15As shown, in one specific embodiment, optionally, the unloading bushing assembly (bushel assembly 100) of the scroll compressor (compressor 200) includes an unloading bushing (bushel 110) and a spring (elastic member 120), wherein the unloading bushing (bushel 110) is provided with a limiting feature (limiting part 111) that restricts the axial bidirectional movement of the spring (elastic member 120).

[0150] When the scroll compressor is running, the unloading bushing (bushel 110) is located between the moving disc (moving scroll 210) and the crankshaft (drive shaft 220) shaft head (eccentric part 221). When transmitting the driving load of the crankshaft shaft head to the moving scroll (moving scroll 210), the magnitude of the load fluctuates and the direction changes with the translational rotation of the moving disc (moving scroll 210). The spring (elastic element 120) is easily moved out or falls off from the unloading bushing (bushel 110), thereby scraping against the hub end face of the moving scroll (moving scroll 210), causing the spring (elastic element 120) to break and shatter, resulting in further and more serious failure.

[0151] The unloading bushing (bushel 110) is equipped with a limiting feature that restricts the bidirectional axial movement of the spring (elastic element 120), preventing the spring (elastic element 120) from moving a long distance axially within the unloading bushing (bushel 110) and preventing the spring (elastic element 120) from being removed or falling out of the unloading bushing (bushel 110). This improves the reliability of the compressor 200 while ensuring the functionality of the unloading bushing assembly (bushel assembly 100).

[0152] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, optionally, a slot feature (limiting part 111 and mating part 130) is provided on one or both sides to prevent the spring (elastic member 120) from moving a long distance relative to the bushing 110. The bushing 110 has a protrusion feature (protrusion 140), and the mating spring (elastic member 120) has a groove 150; or, the bushing 110 has a groove 150, and the mating spring (elastic member 120) has a protrusion feature (protrusion 140).

[0153] According to a third aspect of the present invention, a compressor 200 is provided, including a bushing assembly 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the bushing assembly 100, which will not be repeated here.

[0154] Optionally, the compressor 200 includes a moving scroll 210, a stationary scroll 230, and a drive shaft 220. The stationary scroll 230 and the moving scroll 210 form a compression chamber. An eccentric portion 221 of the drive shaft 220 is disposed on the moving scroll 210. Along the radial direction of the drive shaft 220, a bushing 110 is disposed between the eccentric portion 221 and the moving scroll 210, and an elastic element 120 is disposed between the bushing 110 and the eccentric portion 221.

[0155] Understandably, due to the deformation of the elastic element 120, when the compressor 200 is not started or stopped, the elastic element 120 can cause the moving scroll 210 and the stationary scroll 230 of the compressor 200 to separate radially. Specifically, when the compressor 200 starts, due to the radial separation of the moving scroll 210 and the stationary scroll 230, the compression of the compressor 200 will be relatively slow, and the resistance torque will rise more slowly, thereby improving the starting capability of the compressor 200. Moreover, when the compressor 200 stops, due to the rapid radial separation of the moving scroll 210 and the stationary scroll 230, rapid unloading can be achieved, thereby shortening the time for shutdown reversal.

[0156] When the compressor 200 is running, the drive shaft 220 transmits the drive load to the moving scroll 210 through the eccentric part 221 and the bushing 110, so that the moving scroll 210 can rotate relative to the stationary scroll 230 to compress the gas in the compression chamber formed by the moving scroll 210 and the stationary scroll 230. However, when the bushing 110 transmits the drive load of the eccentric part 221 to the moving scroll 210, the magnitude of the load fluctuates and the direction also changes, which causes the elastic element 120 to easily move out or fall off from the bushing 110.

[0157] The mating part 130 is provided on the elastic member 120. Specifically, when the mating part 130 includes the first mating surface 132 and the second mating surface 133, the limiting part 111 is located between the first mating surface 132 and the second mating surface 133. Alternatively, when the limiting part 111 includes the first mating surface 132 and the second mating surface 133, the mating part 130 is located between the first mating surface 132 and the second mating surface 133. The specific configuration can be made according to actual needs.

[0158] Since the first mating surface 132 and the second mating surface 133 are arranged along the axial direction of the bushing 110, and when the mating part 130 includes the first mating surface 132 and the second mating surface 133, the limiting part 111 can abut against at least one of the first mating surface 132 and the second mating surface 133; or, when the limiting part 111 includes the first mating surface 132 and the second mating surface 133, the mating part 130 can abut against at least one of the first mating surface 132 and the second mating surface 133. That is to say, in When the compressor 200 is under load, the cooperation of the mating part 130 and the limiting part 111 can limit the elastic element 120 in both directions in the axial direction. That is, it can restrict the elastic element 120 from moving downward or upward, and prevent the elastic element 120 from moving out or falling off from the bushing 110 due to load fluctuations. It can also prevent the elastic element 120 from moving out and scraping against the end face of the moving scroll hub, which would lead to the elastic element 120 breaking and causing failure. This improves the reliability of the compressor while ensuring the function of the bushing assembly 100.

[0159] According to a fourth aspect of the present invention, a refrigeration device is provided, including a bushing assembly 100 or a compressor as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the bushing assembly 100 or the compressor, which will not be repeated here.

[0160] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0161] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is 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. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0162] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bushing assembly, characterized by, The bushing assembly is used in a compressor, the compressor including a moving scroll and a drive shaft, the drive shaft including an eccentric portion disposed on the moving scroll, and the bushing assembly including: A bushing, located radially along the drive shaft, is disposed between the eccentric portion and the moving scroll plate, and the bushing is provided with a limiting portion; An elastic element is disposed within the bushing and located between the bushing and the eccentric portion; A mating portion is provided on the elastic member. One of the mating portion and the limiting portion includes a first mating surface and a second mating surface. The first mating surface and the second mating surface are arranged along the axial direction of the bushing. The other of the mating portion and the limiting portion is located between the first mating surface and the second mating surface and can abut against at least one of the first mating surface and the second mating surface.

2. The bushing assembly of claim 1, wherein, One of the mating part and the limiting part is a protrusion, and the other is a groove, with the protrusion inserted into the groove; Along the axial direction of the bushing, the two opposite groove walls of the groove are the first mating surface and the second mating surface, respectively.

3. The bushing assembly of claim 1, wherein, The number of mating parts is multiple, with at least two mating parts located on opposite sides of the elastic member, and the limiting part corresponding to each mating part.

4. The bushing assembly of claim 3, wherein, At least two of the mating parts are arranged opposite each other.

5. The bushing assembly of any of claims 1-4, wherein, The mating part includes a first mating surface and a second mating surface; Along the axial direction of the bushing, when one of the first mating surface and the second mating surface abuts against the limiting portion, the distance between the other of the first mating surface and the limiting portion is less than or equal to 2 mm.

6. The bushing assembly according to any one of claims 1 to 4, characterized in that, The bushing is also provided with a slot that extends axially along the bushing, and a portion of the elastic element is located within the slot.

7. The bushing assembly according to claim 6, characterized in that, One end of the slot extends through the end face of the bushing along its axial direction; and / or the limiting portion is configured to be located close to the slot.

8. The bushing assembly according to any one of claims 1 to 4, characterized in that, The inner wall of the bushing is provided with at least one clearance surface, and at least one clearance surface is located on the side of the elastic member away from the eccentric portion.

9. The bushing assembly according to any one of claims 1 to 4, characterized in that, The elastic element includes a spring.

10. A bushing assembly, characterized in that, The bushing assembly is used in a compressor, the compressor including a moving scroll and a drive shaft, the drive shaft including an eccentric portion disposed on the moving scroll, and the bushing assembly including: A bushing, located radially along the drive shaft, is disposed between the eccentric portion and the moving scroll plate, and the bushing is provided with a limiting portion; An elastic element is disposed within the bushing and located between the bushing and the eccentric portion; A mating portion is provided on the elastic member. The mating portion includes a first mating surface and a second mating surface. The first mating surface and the second mating surface are respectively located on both sides of the width direction of the elastic member. The first mating surface can abut against the limiting portion to restrict the movement of the elastic member along a first direction. The second mating surface can abut against the limiting portion to restrict the movement of the elastic member along a second direction, which is opposite to the first direction.

11. The bushing assembly according to claim 10, characterized in that, Either the first mating surface or the second mating surface extends along the width direction of the elastic element.

12. The bushing assembly according to claim 10, characterized in that, The limiting part includes a first limiting surface and a second limiting surface, which are arranged circumferentially along the bushing. The first mating surface can abut against the first limiting surface to restrict the movement of the elastic member in the first direction, and the second mating surface can abut against the second limiting surface to restrict the movement of the elastic member in the second direction.

13. The bushing assembly according to claim 12, characterized in that, The mating portion includes a first protrusion and a second protrusion, which are respectively located on both sides of the elastic member in the width direction. The side of the first protrusion away from the top of the elastic member includes the first mating surface, and the side of the second protrusion facing the top of the elastic member includes the second mating surface. The limiting part includes a first limiting groove and a second limiting groove, which are arranged circumferentially along the bushing. The first protrusion is inserted into the first limiting groove, and the bottom wall of the first limiting groove includes the first limiting surface. The second protrusion is inserted into the second limiting groove, and the top wall of the second limiting groove includes the second limiting surface.

14. The bushing assembly according to claim 13, characterized in that, At least a portion of the first limiting groove extends circumferentially along the bushing; and / or along the axial direction of the bushing, the top end of the first limiting groove penetrates the end face of the bushing.

15. The bushing assembly according to claim 13, characterized in that, The bushing includes: The sleeve body, wherein the first limiting groove is provided on the sleeve body; The stop portion is connected to the top of the sleeve body and forms the second limiting groove with the sleeve body. The stop portion includes the top wall of the groove.

16. The bushing assembly according to claim 13, characterized in that, Along the axial direction of the bushing, the first protrusion and the second protrusion are configured to be close to the two ends of the elastic member, respectively.

17. A compressor, characterized in that, Includes the bushing assembly as described in any one of claims 1 to 16.

18. A refrigeration device, characterized in that, include: Bushing assembly as described in any one of claims 1 to 16; or The compressor as described in claim 17.

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