Compressor, air conditioning system and vehicle

Abstract

The invention discloses a compressor, an air conditioning system and a vehicle, the compressor comprises a shell, a mounting bracket, a static scroll plate and a dynamic scroll plate, in the axial direction of a rotating shaft, the mounting bracket is mounted between the shell and the static scroll plate, one end of the rotating shaft is connected with the mounting bracket, the dynamic scroll plate is mounted on one side, close to the static scroll plate, of the mounting bracket, and the static scroll plate is mounted on the mounting bracket; a first positioning hole is formed in the shell and / or the static scroll plate, a second positioning hole is formed in the mounting bracket, the positioning pin penetrates through the first positioning hole and the second positioning hole, and the first positioning hole and / or the second positioning hole comprises a first hole section and a second hole section; in the direction perpendicular to the penetrating direction, the cross sectional area of the first hole section is larger than that of the second hole section, and the cross sectional area of the first hole section is larger than that of the positioning pin. According to the compressor disclosed by the embodiment of the invention, the mounting rigidity of the positioning pin can be changed, the condition of part deformation caused by manufacturing and assembling deviations is improved, and the vibration and noise of the compressor are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and more particularly, to a compressor, an air-conditioning system, and a vehicle. Background Art

[0002] An electric compressor is a core component of an automotive air-conditioning device. The operation of the electric compressor generates vibration and noise, which affect the vehicle noise and cause subjective auditory perception problems. In the related art, the relative position accuracy between moving parts is low, resulting in the deterioration of the noise and vibration of the compressor, bringing about vehicle noise and vibration problems. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide a compressor that can improve the vibration and noise problems caused by manufacturing and assembly deviations.

[0004] The present invention also provides an air-conditioning system having the above compressor.

[0005] The present invention further provides a vehicle having the above air-conditioning system.

[0006] The compressor according to an embodiment of the present invention includes: a housing, a mounting bracket, a stationary scroll plate, and a moving scroll plate. An electric motor assembly and a rotating shaft passing through the electric motor assembly are provided in the housing. In the axial direction of the rotating shaft, the mounting bracket is mounted between the housing and the stationary scroll plate. One end of the rotating shaft is connected to the mounting bracket. The moving scroll plate is mounted on a side of the mounting bracket close to the stationary scroll plate. The moving scroll plate is connected to the rotating shaft and meshes with the stationary scroll plate. At least one of the housing and the stationary scroll plate is provided with a first positioning hole, and the mounting bracket is provided with a second positioning hole. A positioning pin passes through the first positioning hole and the second positioning hole. Wherein, at least one of the first positioning hole and the second positioning hole includes a first hole section and a second hole section. One end of the first hole section communicates with the second hole section and the other end of the first hole section is open; the cross-sectional area of the first hole section perpendicular to the passing direction is larger than the cross-sectional area of the second hole section perpendicular to the passing direction, and the cross-sectional area of the first hole section perpendicular to the passing direction is larger than the cross-sectional area of the positioning pin perpendicular to the passing direction.

[0007] According to the compressor of the embodiment of the present invention, the positioning holes on the housing, the stationary scroll plate or the mounting bracket include a first hole section and a second hole section, and the first hole section can be spaced apart from the outer peripheral surface of the positioning pin, so as to change the installation stiffness of the positioning pin, improve the component deformation caused by manufacturing and assembly deviations, and achieve the improvement of the vibration and noise of the compressor.

[0008] In addition, the compressor according to the above embodiments of the present invention may further have the following additional technical features:

[0009] According to some embodiments of the present invention, the length of the first hole section along the penetrating direction is h, and the axial length of the part of the positioning pin located on the side of the first hole section away from the second hole section is H, and H is less than or equal to 2h.

[0010] According to some embodiments of the present invention, the cross-section of the first hole section perpendicular to the penetrating direction is circular, and the inner peripheral surface of the first hole section is spaced apart from the outer peripheral surface of the positioning pin.

[0011] According to some embodiments of the present invention, the ratio of the diameter of the first hole section to the diameter of the second hole section is greater than or equal to 1.05.

[0012] According to some embodiments of the present invention, the second positioning hole includes the first hole section and the second hole section, and the inner diameter of the part of the inner peripheral surface of the first positioning hole that cooperates with the positioning pin is equal everywhere.

[0013] According to some embodiments of the present invention, the housing and the stationary scroll disk are respectively provided with the first positioning holes, and both sides of the mounting bracket facing the housing and the stationary scroll disk are respectively provided with the second positioning holes, and the housing and the stationary scroll disk are respectively connected to the mounting bracket through the positioning pins.

[0014] According to some embodiments of the present invention, the second positioning hole of the mounting bracket facing the housing and the second positioning hole facing the stationary scroll disk communicate with each other, the positioning pin penetrates through the two connected second positioning holes, and both ends of the positioning pin are respectively connected to the housing and the stationary scroll disk.

[0015] According to some embodiments of the present invention, the second positioning hole of the mounting bracket facing the housing and the second positioning hole facing the stationary scroll disk communicate with each other, the positioning pins are respectively arranged in the two connected second positioning holes, and the two positioning pins are spaced apart by a predetermined gap.

[0016] According to some embodiments of the present invention, a plurality of the second positioning holes are provided on the same side of the mounting bracket, and at least one of the plurality of second positioning holes is provided with the positioning pin.

[0017] According to some embodiments of the present invention, the inner peripheral surface of the second hole section is in interference fit with the positioning pin.

[0018] According to some embodiments of the present invention, a limiting convex part is provided on the side of the mounting bracket facing the moving scroll disk, and the moving scroll disk is provided with a long strip hole extending axially perpendicular to the rotating shaft, and the limiting convex part penetrates through the long strip hole.

[0019] According to some embodiments of the present invention, the housing and the mounting bracket are fixed by fasteners; and / or, the stationary scroll and the mounting bracket are fixed by fasteners.

[0020] The air-conditioning system according to an embodiment of the present invention includes a compressor according to an embodiment of the present invention.

[0021] The vehicle according to an embodiment of the present invention includes a compressor according to an embodiment of the present invention or an air-conditioning system according to an embodiment of the present invention.

[0022] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0024] Figure 1 is a cross-sectional view of a compressor according to an embodiment of the present invention;

[0025] Figure 2 is a partial structural schematic diagram of a compressor according to an embodiment of the present invention;

[0026] Figure 3 is a cross-sectional view according to the first embodiment of the present invention along Figure 2 the direction shown by the line A-A in

[0027] Figure 4 is a cross-sectional view according to the second embodiment of the present invention along Figure 2 the direction shown by the line A-A in

[0028] Figure 5 is a cross-sectional view according to the third embodiment of the present invention along Figure 2 the direction shown by the line A-A in

[0029] Figure 6 is a comparison diagram of the relative deformation amount of the mounting bracket between a specific embodiment of the present invention and a comparative example;

[0030] Figure 7 is a schematic diagram of a vehicle according to an embodiment of the present invention.

[0031] Reference Signs:

[0032] Vehicle 2000; Air-conditioning system 1000;

[0033] Compressor 100;

[0034] Housing 10;

[0035] Mounting bracket 20; fastening hole 201; limiting convex part 21;

[0036] Stationary scroll plate 30; moving scroll plate 40; elongated hole 41; motor assembly 50; rotating shaft 60; bearing 61;

[0037] Positioning pin 70; first positioning hole 71; second positioning hole 72; first hole section 731; second hole section 732;

[0038] Electric control unit 81; cover plate 82; high-voltage shell 83. Detailed implementation manner

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0041] In the description of the present invention, the "first feature" and "second feature" may include one or more of such features. The meaning of "a plurality" is two or more. The first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. The first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0042] The compressor 100 according to an embodiment of the present invention will be described below with reference to the drawings.

[0043] Refer to Figure 1 As shown, the compressor 100 according to an embodiment of the present invention may include: a housing 10, a mounting bracket 20, a stationary scroll plate 30, and a moving scroll plate 40.

[0044] Specifically, a motor assembly 50 is provided inside the housing 10, and a rotating shaft 60 is disposed through the motor assembly 50. Axially of the rotating shaft 60 (such as Figure 1 the left - right direction shown), the mounting bracket 20 is installed between the housing 10 and the stationary scroll disk 30, and one end of the rotating shaft 60 is connected to the mounting bracket 20. The moving scroll disk 40 is installed on the side of the mounting bracket 20 close to the stationary scroll disk 30. The moving scroll disk 40 is connected to the rotating shaft 60 and meshes with the stationary scroll disk 30.

[0045] As Figures 1-5 shown, at least one of the housing 10 and the stationary scroll disk 30 is provided with a first positioning hole 71, the mounting bracket 20 is provided with a second positioning hole 72, and a positioning pin 70 is disposed through the first positioning hole 71 and the second positioning hole 72 to achieve preliminary positioning between the mounting bracket 20 and the housing 10 or between the mounting bracket 20 and the stationary scroll disk 30.

[0046] In some embodiments, the housing 10 and the mounting bracket 20 can also be fixed by fasteners such as bolts to further improve the connection stability between the housing 10 and the mounting bracket 20. In some embodiments, the stationary scroll disk 30 and the mounting bracket 20 can also be fixed by fasteners such as bolts to further improve the connection stability between the mounting bracket 20 and the stationary scroll disk 30. For example Figure 2 shown, the mounting bracket 20 is provided with fastening holes 201, and fasteners are disposed through the fastening holes 201 to achieve the fixation of the mounting bracket 20 with the housing 10 and the stationary scroll disk 30.

[0047] The compressor 100 is an electric compressor. During the processes of suction, compression, and exhaust, the stationary scroll disk 30 is fixed. Driven by the motor assembly 50, the rotating shaft 60 can rotate to drive the moving scroll disk 40 and the stationary scroll disk 30 to perform relative revolution movement, forming a continuous change in the enclosed volume, so that the gas is inhaled into the periphery of the stationary scroll disk 30. As the rotating shaft 60 rotates, the gas is gradually compressed in several crescent - shaped compression chambers formed by the meshing of the moving and stationary disks, and then discharged from the air outlet of the stationary scroll disk 30 to achieve the purpose of compressing the gas.

[0048] In some embodiments, as Figures 2-5 shown, the side of the mounting bracket 20 facing the moving scroll disk 40 is provided with a limiting convex portion 21, and the moving scroll disk 40 is provided with a long - strip hole 41 extending perpendicular to the axial direction of the rotating shaft 60. The limiting convex portion 21 is disposed through the long - strip hole 41. The cooperation between the limiting convex portion 21 and the long - strip hole 41 can play a role in preventing self - rotation, which is beneficial to realizing the relative revolution of the moving scroll disk 40 and the stationary scroll disk 30. Optionally, there can be multiple limiting convex portions 21, and the multiple limiting convex portions 21 are arranged at intervals along the circumferential direction of the rotating shaft 60.

[0049] The compressor 100 can be used in air conditioners, refrigeration, general gas compression, and for automotive engine superchargers and vacuum pumps, etc. It has the advantage of small exhaust pressure pulsation, which is beneficial to reducing vibration and noise. For example, an electric compressor can be used as a core component of the air conditioning system 1000 of a vehicle 2000.

[0050] However, the relative position accuracy between moving parts will affect the vibration and noise level of the compressor 100. Among them, the mounting bracket 20 bears the unbalanced force from the rotating shaft 60 and the gas force generated by the compression part composed of the moving scroll disk 40 and the stationary scroll disk 30. Therefore, the structural and positional deformation of the mounting bracket 20 caused by manufacturing and assembly deviations is an important influencing factor for the relative accuracy of the moving parts of the compressor 100.

[0051] In the related art, the mounting bracket, the housing, and the stationary scroll disk are provided with circumferential positioning holes. During the assembly process, when the mounting bracket is positioned with the housing and the stationary scroll disk through the positioning pins, it is easy to cause the situation of hard assembly between the positioning pins and the positioning holes due to manufacturing positional deviations, resulting in local deformation of the housing, the stationary scroll disk, or the mounting bracket and its associated components. For example, the self-deformation of the mounting bracket affects the accuracy of the bearings and the limiting protrusions mounted thereon, thereby causing deterioration of the noise and vibration of the compressor, especially the deterioration of vibration and noise at high speeds, bringing automotive noise and vibration problems.

[0052] Therefore, in the present application, as Figures 1-5 shown, at least one of the first positioning hole 71 and the second positioning hole 72 includes a first hole section 731 and a second hole section 732. One end of the first hole section 731 communicates with the second hole section 732 and the other end of the first hole section 731 is open. In other words, the end opening at the other end of the first hole section 731 forms the end opening of the positioning hole, and the positioning pin 70 can be inserted into the positioning hole through this end opening. Taking Figure 3 as an example, the left end face of the mounting bracket 20 faces the housing 10, and the second positioning hole 72 for positioning the connection with the housing 10 on the mounting bracket 20 includes a first hole section 731 and a second hole section 732. The first hole section 731 is located on the left side of the second hole section 732 (i.e., axially outside, and further, on the side closer to the housing 10 in the axial direction), and the left end opening of the first hole section 731 is formed on the left end face of the mounting bracket 20.

[0053] The cross-sectional area of the first hole section 731 perpendicular to the insertion direction is larger than that of the second hole section 732 perpendicular to the insertion direction, and the cross-sectional area of the first hole section 731 perpendicular to the insertion direction is larger than that of the positioning pin 70 perpendicular to the insertion direction. Here, the "insertion direction" refers to the direction in which the positioning pin 70 is inserted and installed in the positioning hole, that is, the arrangement direction of the first hole section 731 and the second hole section 732. It should be noted that the insertion direction can be parallel to the axis direction of the rotating shaft 60 or can be set at an angle to the axis direction of the rotating shaft 60.

[0054] Thus, the first hole section 731 is formed as a sunk groove, and the positioning hole including the first hole section 731 and the second hole section 732 is formed as a stepped hole. The inner peripheral surface of the first hole section 731 is connected to the inner peripheral surface of the second hole section 732 through a connecting surface, and the connecting surface is perpendicular to the insertion direction or is set at an angle to the insertion direction. The cross-sections of the first hole section 731 and the second hole section 732 perpendicular to the insertion direction can be circular, square or any other shape; the cross-section of the positioning pin 70 perpendicular to the insertion direction can be circular, square or any other shape, and the cross-section shapes of the first hole section 731, the second hole section 732 and the positioning pin 70 can be the same or different.

[0055] Next, for the convenience of description, an example in which the cross-sections are all circular and the insertion direction is parallel to the axis direction of the rotating shaft 60 will be described. According to the following description, embodiments with other cross-section shapes and the insertion direction set at an angle to the axis direction of the rotating shaft 60 are understandable to those skilled in the art.

[0056] In the embodiment of the present application, the second hole section 732 with a smaller aperture cooperates with the positioning pin 70, which is beneficial to improving the positioning accuracy; at least a part of the inner peripheral surface of the first hole section 731 with a larger aperture can be spaced apart from the outer peripheral surface of the positioning pin 70. Taking the second positioning hole 72 including the first hole section 731 and the second hole section 732 as an example, when the part of the positioning pin 70 outside the second positioning hole 72 is inserted into the first positioning hole 71, even if there is a machining position deviation between the first positioning hole 71 and the second positioning hole 72, resulting in the positioning pin 70 being bent and deformed under the action of the hole wall of the first positioning hole 71, the positioning pin 70 will not contact the inner peripheral surface of the first hole section 731 within a certain deformation range. Thus, the deformation of the positioning pin 70 will not cause local deformation of the mounting bracket 20. The structure of the first positioning hole 71 can allow a certain degree of deformation of the positioning pin 70, change the installation stiffness of the positioning pin 70 outside the mounting bracket 20, be compatible with a certain degree of position deviation between the first positioning hole 71 and the second positioning hole 72, and effectively reduce the deterioration of the noise and vibration of the compressor 100 caused by the deformation of the mounting bracket 20.

[0057] Similarly, in the embodiment where the first positioning hole 71 includes a first hole section 731 and a second hole section 732, the deformation of the housing 10 or the stationary scroll plate 30 caused by manufacturing and assembly deviations can be reduced, and the vibration and noise of the compressor 100 at high speeds can be improved.

[0058] For the compressor 100 according to an embodiment of the present invention, the positioning holes on the housing 10, the stationary scroll plate 30 or the mounting bracket 20 include a first hole section 731 and a second hole section 732, and the first hole section 731 can be spaced apart from the outer peripheral surface of the positioning pin 70, thereby changing the mounting stiffness of the positioning pin 70, improving the component deformation caused by manufacturing and assembly deviations, and realizing the improvement of the vibration and noise of the compressor 100.

[0059] According to some embodiments of the present invention, as Figure 3 shown, the length of the first hole section 731 in the penetrating direction is h, and the axial length of the part of the positioning pin 70 located on the side of the first hole section 731 away from the second hole section 732 is H, that is, the length of the part of the positioning pin 70 extending out of the positioning hole including the first hole section 731 and the second hole section 732 is H. And, H is less than or equal to 2h.

[0060] If the length of H is too large, when the positioning pin 70 is inserted into the positioning hole of another component, such as when the positioning pin 70 pre-installed on the mounting bracket 20 is inserted into the first positioning hole 71 of the housing 10, the deformation degree of the extending part of the positioning pin 70 perpendicular to the axial direction of the rotating shaft 60 will be too large, and the effect of the first hole section 731 avoiding the deformation of the positioning pin 70 is weak. And within the above ratio range, the first hole section 731 can avoid the deformation of the positioning pin 70 caused by manufacturing and assembly deviations in most cases, and the effect of improving the deformation of the mounting bracket 20, the housing 10 and the stationary scroll plate 30 is better. For example, in some specific embodiments, H can be equal to h, 1.2h, 1.5h, 1.8h, etc.

[0061] In some specific embodiments, the cross-section of the first hole section 731 perpendicular to the penetrating direction is circular, and the inner peripheral surface of the first hole section 731 is spaced apart from the outer peripheral surface of the positioning pin 70. In other words, the entire inner peripheral surface of the first hole section 731 can play a role in avoiding the deformation of the positioning pin 70. When the positioning pin 70 is deformed in any direction perpendicular to the axial direction of the rotating shaft 60 due to manufacturing and assembly deviations, the first hole section 731 can effectively avoid it, which is more conducive to reducing the deformation of the mounting bracket 20, the housing 10 and the stationary scroll plate 30.

[0062] In some specific embodiments, the ratio of the diameter of the first hole section 731 to the diameter of the second hole section 732 is greater than or equal to 1.05. That is, the diameter of the first hole section 731 is 5% or more larger than the diameter of the second hole section 732. On the one hand, it enables the inner peripheral surface of the first hole section 731 to effectively avoid the deformation of the positioning pin 70. On the other hand, the diameter accuracy requirement for the first hole section 731 is relatively low, and rough machining can be used, which can reduce the processing difficulty.

[0063] In this application, in the first positioning hole 71 and the second positioning hole 72, one of them can be formed as a stepped hole, or both can be stepped holes. In some specific embodiments, as Figures 1-5 shown, the second positioning hole 72 includes a first hole section 731 and a second hole section 732, and the inner diameter of the inner peripheral surface of the first positioning hole 71 that cooperates with the positioning pin 70 is equal everywhere. In other words, the second positioning hole 72 on the mounting bracket 20 is formed as a stepped hole, and the first positioning holes 71 on the housing 10 and the stationary scroll plate 30 are formed as cylindrical holes.

[0064] During assembly, the positioning pin 70 can be pre-installed on the mounting bracket 20 first, and then the positioning pin 70 can be inserted into the first positioning hole 71 to realize the connection between the mounting bracket 20 and the housing 10 and the stationary scroll plate 30. Compared with the housing 10 and the stationary scroll plate 30, the mounting bracket 20 cooperates with the rotating shaft 60 and the moving scroll plate 40 at the same time. That is, there are more moving parts that cooperate with the mounting bracket 20. By setting a stepped hole on the mounting bracket 20, it is more conducive to reducing the deformation of the mounting bracket 20, and thus the effect of improving vibration and noise is more significant. And the cylindrical first positioning hole 71 can improve the positioning effect between the mounting bracket 20 and the housing 10 and between the mounting bracket 20 and the stationary scroll plate 30, which is also beneficial to improving the relative position accuracy.

[0065] In the embodiments of this application, the number and the setting positions of the positioning pin 70 and the positioning holes can be set flexibly. For example, in some embodiments, as Figure 1 shown, the housing 10 and the stationary scroll plate 30 are respectively provided with first positioning holes 71, and the two sides of the mounting bracket 20 facing the housing 10 and the stationary scroll plate 30 are respectively provided with second positioning holes 72. The housing 10 and the stationary scroll plate 30 are respectively connected to the mounting bracket 20 through the positioning pin 70. Through the positioning pin 70, the positioning between the mounting bracket 20 and the housing 10 can be realized, and the positioning between the mounting bracket 20 and the stationary scroll plate 30 can be realized. Furthermore, the positioning reliability of the entire compressor 100 is improved, and the relative position accuracy of the rotating shaft 60, the mounting bracket 20, and the moving scroll plate 40 meshing with the stationary scroll plate 30 in the housing 10 is effectively improved, and the effect of improving vibration and noise is improved.

[0066] In some specific embodiments, as Figure 3 and Figure 4As shown, the second positioning holes 72 of the mounting bracket 20 facing the housing 10 and the second positioning holes 72 facing the stationary scroll disk 30 communicate with each other. The positioning pin 70 is inserted through the two connected second positioning holes 72, and both ends of the positioning pin 70 are respectively connected to the housing 10 and the stationary scroll disk 30.

[0067] Two installation positions can be located by one positioning pin 70, which is beneficial to reducing the number of components and improving the relative position accuracy between the housing 10 and the stationary scroll disk 30. The effective mating area between the positioning pin 70 and the mounting bracket 20 is larger, that is, the interference fit area between the positioning pin 70 and the mounting bracket 20 can be larger, which is beneficial to improving the mating reliability. Moreover, the two connected second positioning holes 72 on both sides of the mounting bracket 20 are easier and more efficient to process. For example Figure 3 As shown, the inner diameters of the second hole sections 732 of the second positioning holes 72 facing the housing 10 and the second positioning holes 72 facing the stationary scroll disk 30 are equal and can be formed by integral machining.

[0068] In some other embodiments, as Figure 5 As shown, the second positioning holes 72 of the mounting bracket 20 facing the housing 10 and the second positioning holes 72 facing the stationary scroll disk 30 communicate with each other. Positioning pins 70 are respectively arranged in the two connected second positioning holes 72, and the two positioning pins 70 are spaced apart by a predetermined gap.

[0069] The two connected second positioning holes 72 are easier to process and manufacture. The two positioning pins 70 are separately arranged, so that the two positioning pins 70 can be inserted into the corresponding second positioning holes 72 from both sides respectively, reducing the insertion difficulty. And the two positioning pins 70 are spaced apart by a predetermined gap, so that the two positioning pins 70 do not interfere with each other, which is beneficial to controlling the dimension of the positioning pins 70 extending out of the mounting bracket 20, and further controlling the deformation degree of the positioning pins 70 and the influence on the deformation of the mounting bracket 20, which is beneficial to reducing the deformation risk of the mounting bracket 20.

[0070] According to some embodiments of the present invention, as Figure 2 As shown, multiple second positioning holes 72, that is, two or more, can be provided on the same side of the mounting bracket 20. Only one of the multiple second positioning holes 72 can be provided with a positioning pin 70 to reduce the influence of manufacturing and assembly deviations on vibration and noise while achieving positioning. Multiple second positioning holes 72 can also be provided with positioning pins 70, making the positioning more reliable.

[0071] In some embodiments of the present invention, the inner peripheral surface of the second hole section 732 is in interference fit with the positioning pin 70. On the one hand, it can improve the relative position accuracy between the positioning pin 70 and the component having the second hole section 732, and improve the positioning reliability; on the other hand, during the assembly process of the positioning pin 70 and another component, the positioning pin 70 is not easy to slide within the second hole section 732. For example, the positioning pin 70 is installed in the second hole section 732 of the second positioning hole 72 of the mounting bracket 20 by interference fit. Through the interference limit of the second hole section 732, during the assembly process of the positioning pin 70 with the housing 10 or the stationary scroll plate 30, the relative displacement between the positioning pin 70 and the mounting bracket 20 can be reduced. Furthermore, the length of the positioning pin 70 extending out of the second positioning hole 72 is stable, and the effect of reducing the deformation of the mounting bracket 20 is stable.

[0072] In some embodiments of the present invention, the positioning hole that does not include the first hole section 731 and the second hole section 732 can be in interference fit, transition fit or clearance fit with the positioning pin 70, as long as it can achieve the positioning between the mounting bracket 20 and the housing 10, and between the mounting bracket 20 and the stationary scroll plate 30.

[0073] As Figure 7 shown, the air-conditioning system 1000 according to an embodiment of the present invention includes a compressor 100 according to an embodiment of the present invention. Since the compressor 100 according to an embodiment of the present invention has the above-mentioned beneficial technical effects, the air-conditioning system 1000 according to an embodiment of the present invention has a positioning hole on the housing 10, the stationary scroll plate 30 or the mounting bracket 20 that includes a first hole section 731 and a second hole section 732, and the first hole section 731 can be spaced apart from the outer peripheral surface of the positioning pin 70, thereby changing the installation stiffness of the positioning pin 70, improving the component deformation caused by manufacturing and assembly deviations, and realizing the improvement of the vibration and noise of the compressor 100.

[0074] The air conditioning system 1000 can adjust the temperature of the equipment using it. For example, the air conditioning system 1000 can be used to adjust the temperature of the passenger compartment, battery compartment, etc. of the vehicle 2000. In some embodiments, the air conditioning system 1000 may further include a condenser, an evaporator, a liquid storage tank, an expansion valve, etc., and can achieve refrigeration and heating. Taking refrigeration as an example, the low-temperature and low-pressure refrigerant gas processed by the evaporator is inhaled and compressed into a high-temperature and high-pressure gas by the compressor 100, and then input into the condenser; the high-temperature and high-pressure refrigerant gas enters the condenser, and due to the reduction of pressure and temperature, the refrigerant gas condenses into a liquid and releases a large amount of heat to the outside atmosphere; the refrigerant liquid with a higher temperature and pressure passes through the expansion device and then its volume becomes larger, and the pressure and temperature drop sharply, and it is discharged from the expansion valve in a mist (fine droplets); the mist-like refrigerant liquid enters the evaporator, and at this time the boiling point of the refrigerant is much lower than the temperature in the evaporator, so the refrigerant liquid evaporates into a gas. During the evaporation process, a large amount of heat around is absorbed, and then the low-temperature and low-pressure refrigerant vapor enters the compressor 100 again. The above process is carried out cyclically, and the purpose of reducing the air temperature around the evaporator can be achieved. At the same time, the blower sucks the cold air into the vehicle and discharges the hot air in the vehicle, so as to reduce the temperature in the vehicle and obtain a refrigeration effect.

[0075] As Figure 7 shown, the vehicle 2000 according to an embodiment of the present invention includes the compressor 100 according to an embodiment of the present invention or the air conditioning system 1000 according to an embodiment of the present invention. Since the compressor 100 and the air conditioning system 1000 according to an embodiment of the present invention have the above beneficial technical effects, the vehicle 2000 according to an embodiment of the present invention, through the positioning holes on the housing 10, the stationary scroll plate 30 or the mounting bracket 20, includes a first hole section 731 and a second hole section 732, and the first hole section 731 can be spaced apart from the outer peripheral surface of the positioning pin 70, so as to change the mounting stiffness of the positioning pin 70, improve the component deformation caused by manufacturing and assembly deviations, and realize the improvement of the vibration and noise of the compressor 100.

[0076] Here, the vehicle 2000 may be a new energy vehicle 2000. In some embodiments, the new energy vehicle 2000 may be a pure electric vehicle 2000 with an electric motor as the main driving force. In other embodiments, the new energy vehicle 2000 may also be a hybrid vehicle 2000 with an internal combustion engine and an electric motor as the main driving forces at the same time. Regarding the internal combustion engine and the electric motor mentioned in the above embodiments for providing driving power for the new energy vehicle 2000, the internal combustion engine may use gasoline, diesel, hydrogen, etc. as fuels, and the way of providing electric energy for the electric motor may use power batteries, hydrogen fuel cells, etc., which are not specifically limited here. It should be noted that only an exemplary description of the structure of the new energy vehicle 2000, etc. is made here, and it does not limit the protection scope of the present invention.

[0077] The compressor 100 according to a specific embodiment of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the following description is only illustrative and should not be construed as a limitation of the invention.

[0078] As Figure 1 , Figure 2 and Figure 4 shown, the compressor 100 according to a specific embodiment of the present invention includes a housing 10, a compression part, a motor assembly 50, a mounting bracket 20, an electronic control part 81, a cover plate 82, a rotating shaft 60, a bearing 61, and a high-pressure housing 83. The compression part includes a stationary scroll plate 30 and a moving scroll plate 40. In the left-right direction, the mounting bracket 20 is disposed between the housing 10 and the compression part. Both ends of the rotating shaft 60 are respectively mounted on the left end wall of the housing 10 and the mounting bracket 20 through the bearing 61. The moving scroll plate 40 is connected to the right end of the rotating shaft 60 and is limited by the limiting convex part 21 of the mounting bracket 20. The high-pressure housing 83 is disposed on the right side of the compression part and is applicable to refrigerants such as R134a, R744, R290, and R1234yf. The cover plate 82 covers the left side of the housing 10, and the electronic control part 81 is disposed in the mounting cavity defined by the cooperation of the cover plate 82 and the housing 10. The motor assembly 50 is disposed in the housing 10 and sleeved on the rotating shaft 60.

[0079] When the compressor 100 operates normally, the motor assembly 50 drives the rotating shaft 60 to rotate and drives the moving scroll plate 40 to perform a circumferential rotary motion. During the above operation process, the mounting bracket 20, as a supporting component, simultaneously bears the unbalanced force from the shafting and the gas force generated by the compression part. Therefore, the deformation of the mounting bracket 20 itself will affect the accuracy of the bearing 61 and the limiting convex part 21 mounted thereon, thereby causing problems related to noise and reliability. From the assembly process, it can be seen that the mounting bracket 20 is initially positioned with the housing 10 and the stationary scroll plate 30 respectively through the positioning pins 70, and then installed and fixed through fasteners. Therefore, in the above installation link, if there is a machining position deviation in the positioning holes that cooperate with the positioning pins 70 among the housing 10, the stationary scroll plate 30, and the mounting bracket 20, it will easily cause the situation of hard assembly between the positioning pins 70 and the positioning holes, resulting in local deformation of the mounting bracket 20 and deterioration of the noise and vibration of the compressor 100.

[0080] In this embodiment, the structure of the mounting bracket 20 can change the installation stiffness of the positioning pins 70 on the outside of the mounting bracket 20, thereby improving the deformation situation of the mounting bracket 20 caused by manufacturing and assembly deviations, and realizing the improvement of the vibration and noise of the compressor 100 at high speeds.

[0081] Specifically, two second positioning holes 72 are provided on both the left and right sides of the mounting bracket 20 and are in one-to-one correspondence and communication. The second positioning holes 72 are all stepped holes and include a first hole section 731 and a second hole section 732. The aperture of the first hole section 731 is larger than that of the second hole section 732, forming a counterbore structure. The positioning pin 70 is inserted into two connected second positioning holes 72, and is in interference fit with the second hole section 732, and is spaced apart from the inner peripheral surface of the first hole section 731 by a predetermined gap. The two end portions of the positioning pin 70 extending outside the mounting bracket 20 can be respectively inserted into the first positioning hole 71 of the housing 10 and the first positioning hole 71 of the stationary scroll disk 30, so as to realize the positioning among the housing 10, the mounting bracket 20 and the stationary scroll disk 30, facilitating the subsequent fastening and installation of fasteners.

[0082] During the process of inserting the positioning pin 70 into the first positioning hole 71, if there is a positional deviation between the first positioning hole 71 and the second positioning hole 72, resulting in a hard assembly of the positioning pin 70 and the first positioning hole 71, the positioning pin 70 will be bent and deformed under the action of the hole wall of the first positioning hole 71. The reserved gap between the inner peripheral surface of the first hole section 731 and the positioning pin 70 can allow a certain amount of deformation of the positioning pin 70, so as to reduce the extrusion force of the deformed positioning pin 70 on the mounting bracket 20, thereby reducing the deformation of the mounting bracket 20 caused by the positional deviation.

[0083] As Figure 6 shown, the figure shows a comparison diagram of the relative deformation amounts of the mounting bracket 20 in the comparative example and the above embodiment of the present application. Among them, the difference between the comparative example and the present application is that the second positioning hole 72 of the mounting bracket 20 is a cylindrical hole. The relative deformation amount refers to the ratio of the deformation amount of the mounting bracket 20 to the deformation amount of the positioning pin 70. It can be seen from the figure that by providing the positioning hole including the first hole section 731 and the second hole section 732 in the embodiment of the present application, the deformation amount of the mounting bracket 20 is greatly reduced, and the vibration and noise of the compressor 100 can be effectively improved.

[0084] The other components and operations of the air-conditioning system 1000 and the vehicle 2000 according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0085] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounting", "connecting" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0086] In the description of this specification, the descriptions referring to the terms "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A compressor, characterized in that, Comprising: A housing, a mounting bracket, a stationary scroll plate, and a moving scroll plate. An electric motor assembly and a rotating shaft passing through the electric motor assembly are provided inside the housing. In the axial direction of the rotating shaft, the mounting bracket is installed between the housing and the stationary scroll plate. One end of the rotating shaft is connected to the mounting bracket. The moving scroll plate is installed on one side of the mounting bracket close to the stationary scroll plate. The moving scroll plate is connected to the rotating shaft and meshes with the stationary scroll plate. At least one of the housing and the stationary scroll plate is provided with a first positioning hole, and the mounting bracket is provided with a second positioning hole. A positioning pin passes through the first positioning hole and the second positioning hole. Among them, At least one of the first positioning hole and the second positioning hole includes a first hole section and a second hole section. One end of the first hole section communicates with the second hole section and the other end of the first hole section is open; The cross-sectional area of the first hole section perpendicular to the passing direction is larger than the cross-sectional area of the second hole section perpendicular to the passing direction, and the cross-sectional area of the first hole section perpendicular to the passing direction is larger than the cross-sectional area of the positioning pin perpendicular to the passing direction.

2. The compressor according to claim 1, characterized in that, The length of the first hole section in the passing direction is h, and the axial length of the part of the positioning pin located on the side of the first hole section away from the second hole section is H, and H is less than or equal to 2h.

3. The compressor according to claim 1, wherein The cross-section of the first hole section perpendicular to the passing direction is circular, and the inner peripheral surface of the first hole section is spaced apart from the outer peripheral surface of the positioning pin.

4. The compressor according to claim 3, characterized in that, The ratio of the diameter of the first hole section to the diameter of the second hole section is greater than or equal to 1.

05.

5. The compressor according to claim 1, characterized in that, The second positioning hole includes the first hole section and the second hole section, and the inner diameter of the part of the inner peripheral surface of the first positioning hole that cooperates with the positioning pin is equal everywhere.

6. The compressor according to claim 1, characterized in that, The housing and the stationary scroll plate are respectively provided with the first positioning hole, and both sides of the mounting bracket facing the housing and the stationary scroll plate are respectively provided with the second positioning hole. The housing and the stationary scroll plate are respectively connected to the mounting bracket through the positioning pin.

7. The compressor according to claim 6, characterized in that The second positioning hole of the mounting bracket facing the housing and the second positioning hole facing the stationary scroll plate communicate with each other. The positioning pin passes through the two connected second positioning holes, and both ends of the positioning pin are respectively connected to the housing and the stationary scroll plate.

8. The compressor according to claim 6, characterized in that, The second positioning hole of the mounting bracket facing the housing and the second positioning hole facing the stationary scroll plate communicate with each other. The positioning pins are respectively provided in the two connected second positioning holes, and the two positioning pins are spaced apart by a predetermined gap.

9. The compressor according to claim 1, characterized in that, A plurality of the second positioning holes are provided on the same side of the mounting bracket, and at least one of the plurality of second positioning holes is provided with the positioning pin.

10. The compressor according to any one of claims 1-9, characterized in that, The inner peripheral surface of the second hole section is in interference fit with the positioning pin.

11. The compressor according to claim 1, wherein, A limiting convex part is provided on one side of the mounting bracket facing the moving scroll plate. The moving scroll plate is provided with a long strip hole extending axially perpendicular to the rotating shaft. The limiting convex part passes through the long strip hole.

12. The compressor according to claim 1, characterized in that, The housing and the mounting bracket are fixed by fasteners; and / or, the stationary scroll plate and the mounting bracket are fixed by fasteners.

13. An air conditioning system, characterized in that, Comprising a compressor according to any one of claims 1 - 12.

14. A vehicle, characterized in that, Comprising a compressor according to any one of claims 1 - 12 or an air - conditioning system according to claim 13.

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