Motor for automobile condenser

Abstract

Embodiments of the present application relate to a motor for an automobile condenser, comprising a control panel, a stator assembly, a rotor assembly, a support, a rear cover, and a wire harness assembly. The stator assembly is connected to the control panel; the rotor assembly can rotate relative to the stator assembly; the support is connected to the stator assembly, and a plurality of protrusions are arranged on the side wall of the support; a plurality of recesses are formed in the edge of the rear cover in an outward surrounding mode, the recesses cover the surfaces of the protrusions, the recesses are provided with recessed ribs, and the recessed ribs abut against the surface of the side wall of the support, so that the rear cover is fixedly connected to the support; and one end of the wire harness assembly is located in a cavity and is connected to the control panel. According to the motor provided by the embodiments of the present application, by mating the recesses in the rear cover with the protrusions on the support and by arranging the recessed ribs on the recesses, the connection stability and firmness between the rear cover and the support are ensured.

Description

Motors for automotive condensers Technical Field

[0001] The present application relates to the technical field of automobile condenser heat dissipation, and in particular to a motor for an automobile condenser. Background Art

[0002] The car condenser is a crucial component of the vehicle's air conditioning system, ensuring efficient cooling and dehumidification. Typically, the condenser is paired with a condenser fan, which is installed from the front to the rear of the vehicle. The condenser fan increases air flow and improves heat dissipation.

[0003] While the car is moving, the wind generated by the vehicle's forward motion helps dissipate heat from the condenser. However, when the car is driving at low speed or parked, the condenser fan plays a crucial role. By drawing air in from the front of the car and exhausting it, the condenser fan increases air flow and further improves the cooling effect.

[0004] The rear cover and bracket structure of the condenser fan motor are typically connected using screws or snap-on fasteners. Screw-on fasteners require a large number of components and are complex to install. Snap-on fasteners require high precision and carry a risk of disengagement in vibrating environments.

[0005] Summary of the Invention

[0006] In view of this, embodiments of the present application provide a motor for an automobile condenser to solve at least one problem existing in the background technology.

[0007] In a first aspect, an embodiment of the present application provides a motor for an automobile condenser, comprising:

[0008] Control panel;

[0009] a stator assembly connected to the control board;

[0010] a rotor assembly surrounding the outer periphery of the stator assembly;

[0011] A bracket connected to the stator assembly, wherein a plurality of protrusions are provided on a side wall of the bracket;

[0012] The back cover has a plurality of recessed grooves formed on its edge outwardly, the recessed grooves are spaced to cover the surface of the raised block, and recessed ribs are formed by riveting on the recessed grooves. The recessed ribs are formed after the recessed grooves cover the surface of the raised block and are in interference fit with the side wall surface of the bracket, so that the back cover is fixedly connected to the bracket. A cavity is formed between the back cover and the bracket, and the control board is located in the cavity and connected to the bracket;

[0013] A sealing component filled between the bracket and the back cover;

[0014] A wiring harness assembly has one end located in the cavity and connected to the control board.

[0015] In combination with the first aspect of the present application, in an optional embodiment, the back cover is made of metal, and the recessed ribs are formed on the side walls of the recessed groove by riveting.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the recessed ribs are formed on two opposite side walls of the recessed groove, and the two recessed ribs are respectively in interference contact with the two side walls of the protruding block.

[0017] In combination with the first aspect of the present application, in an optional embodiment, the length direction of the recessed ribs located on both sides of the protruding block is parallel to the axis direction of the motor.

[0018] In combination with the first aspect of the present application, in an optional embodiment, a guiding slope is provided on the protruding block, the guiding slope matches the recessed groove, and the recessed groove covers the surface of the protruding block along the direction of the guiding slope.

[0019] In combination with the first aspect of the present application, in an optional embodiment, the plurality of protruding blocks are distributed on both sides of the bracket along the first symmetry axis.

[0020] In combination with the first aspect of the present application, in an optional embodiment, a concave rib block is provided on a side surface of the back cover close to the bracket, and a side wall of the concave rib block close to the recessed groove abuts against the inner wall of the bracket.

[0021] In combination with the first aspect of the present application, in an optional embodiment, there are multiple concave rib blocks, and the shapes of the multiple concave rib blocks are adapted to the inner side wall of the bracket.

[0022] In conjunction with the first aspect of the present application, in an optional embodiment, the wiring harness assembly includes:

[0023] wiring harness;

[0024] a terminal, one end of which is connected to one end of the control board and the other end of which is connected to the wiring harness;

[0025] A terminal block is connected to the bracket, the terminal is embedded in the terminal block, a welding groove and an insertion groove are provided on the terminal block, a partial area of ​​the terminal is located in the welding groove, and one end of the wiring harness passes through the insertion groove and is spot-welded to the terminal.

[0026] In conjunction with the first aspect of the present application, in an optional embodiment, the stator assembly includes:

[0027] a stator core having a hollow area at its center;

[0028] At least two stator mounting frames connected to the bracket, the stator mounting frames extending from the inner wall of the hollow area toward the center of the stator core; at least two stator mounting frames are spaced apart;

[0029] The stator winding is wound on the stator core.

[0030] In combination with the first aspect of the present application, in an optional embodiment, the stator assembly further includes a stator pole shoe, which is connected to the end of the stator teeth of the stator core, and a symmetrical groove is provided on the side of the stator pole shoe close to the rotor assembly.

[0031] In conjunction with the first aspect of the present application, in an optional embodiment, the rotor assembly includes:

[0032] A connecting member, comprising an output shaft, a first bearing and a second bearing, wherein the first bearing and the second bearing are both sleeved on the output shaft, and the first bearing and the second bearing are both connected to the inner wall of the bearing cavity formed by the extension of the bracket, and the output shaft, the first bearing and the second bearing are coaxial;

[0033] a rotor housing connected to the output shaft, wherein a gap exists between the rotor housing and the bracket, and an air inlet is formed on an end surface of the rotor housing facing away from the bracket, the air inlet being in communication with the gap;

[0034] The magnetic steel is connected to the inner wall of the rotor housing, and the magnetic steel and the rotor housing rotate along with the output shaft.

[0035] In conjunction with the first aspect of the present application, in an optional embodiment, the first bearing is connected to the bearing cavity near one end of the control board, and the first bearing is in a transition fit with the output shaft and in an interference fit with the bearing cavity;

[0036] The second bearing is connected to the bearing cavity at one end away from the control board. The second bearing is in interference fit with the output shaft and in transition fit with the bearing cavity.

[0037] In combination with the first aspect of the present application, in an optional embodiment, the connecting member further includes a limiting member, which is clamped between the first bearing and the output shaft, and / or between the second bearing and the inner wall of the bearing cavity.

[0038] In combination with the first aspect of the present application, in an optional embodiment, the limiting member is a retaining spring and / or a wave washer.

[0039] An embodiment of the present application provides a motor for a car condenser, which matches a recessed groove on a rear cover with a raised block on a bracket, and provides recessed ribs on the recessed groove to ensure the stability and firmness of the connection between the rear cover and the bracket.

[0040] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0042] FIG1 is an exploded view of the overall structure of a motor for an automobile condenser provided in an embodiment of the present application;

[0043] Figure 2 is an enlarged view of point A in Figure 1;

[0044] FIG3 is a schematic plan view of the overall structure of a motor for an automobile condenser provided in an embodiment of the present application;

[0045] FIG4 is a cross-sectional view at AA in FIG3 ;

[0046] Figure 5 is an enlarged view of point C in Figure 4;

[0047] FIG6 is a schematic diagram of the rear cover structure of a motor for an automobile condenser provided in an embodiment of the present application;

[0048] Figure 7 is an enlarged view of point B in Figure 1;

[0049] FIG8 is a partial structural diagram of a stator assembly in a motor for an automobile condenser provided in an embodiment of the present application;

[0050] Figure 9 is an enlarged view of point D in Figure 5;

[0051] Figure numerals: 100, motor; 10, control board; 20, stator assembly; 210, stator mounting frame; 211, hollow area; 220, stator core; 231, groove; 30, rotor assembly; 3a4, gap; 311, output shaft; 312, first bearing; 313, second bearing; 314, retaining spring; 320, rotor housing; 330, magnet; 40, bracket; 410, protrusion; 411, guide slope; 50, back cover; 510, recessed groove; 511, recessed rib; 520, lower concave rib block; 521, first rib block; 5211, limiting slope; 522, second rib block; 60, wiring harness assembly; 610, wiring harness; 620, terminal block; 621, welding groove. DETAILED DESCRIPTION

[0052] The exemplary embodiments disclosed herein will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the specific embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0053] In the following description, numerous specific details are provided to provide a more thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present application; that is, all features of actual embodiments are not described herein, nor are well-known functions and structures described in detail.

[0054] In the drawings, the sizes of layers, regions, elements and their relative sizes may be exaggerated for clarity. Like reference numerals denote like elements throughout.

[0055] It should be understood that when an element or layer is referred to as being "on," "adjacent to," "connected to," or "coupled to" another element or layer, it may be directly on, adjacent to, connected to, or coupled to the other element or layer, or there may be intervening elements or layers. Conversely, when an element is referred to as being "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" another element or layer, there may be no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, or part from another element, component, region, layer, or part. Therefore, without departing from the teachings of the present application, the first element, component, region, layer, or part discussed below may be represented as a second element, component, region, layer, or part. And when the second element, component, region, layer, or part is discussed, it does not necessarily mean that the first element, component, region, layer, or part is present in the present application.

[0056] Spatially relative terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein for convenience of description to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, the spatially relative terms are intended to include different orientations of the device in use and operation. For example, if the device in the drawings is flipped, then the elements or features described as "under the other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatial descriptors used herein are interpreted accordingly.

[0057] The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application. When used herein, the singular forms "a", "an", and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0058] In order to fully understand the present application, detailed steps and detailed structures will be presented in the following description to illustrate the technical solution of the present application. The preferred embodiments of the present application are described in detail below. However, in addition to these detailed descriptions, the present application may also have other implementation methods.

[0059] An embodiment of the present application provides a motor for an automobile condenser. The motor 100 matches a plurality of recessed grooves 510 on a rear cover 50 with a plurality of raised blocks 410 on a bracket 40, and utilizes recessed ribs 511 provided on the recessed grooves 510 to abut against the side wall surface of the bracket 40, thereby ensuring a fixed connection between the rear cover 50 and the bracket 40, reducing the locking process and avoiding the risk of disengagement.

[0060] A motor for an automobile condenser provided in an embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0061] Specifically, as shown in FIG1 , a motor for an automobile condenser provided in an embodiment of the present application includes a control board 10 , a stator assembly 20 , a rotor assembly 30 , a bracket 40 , a rear cover 50 , a sealing assembly and a wiring harness assembly 60 .

[0062] The stator assembly 20 is connected to the control board 10, the rotor assembly 30 surrounds the outer periphery of the stator assembly 20, and the bracket 40 is connected to the stator assembly 20. A plurality of raised blocks 410 are provided on the sidewall of the bracket 40. A plurality of recessed grooves 510 are formed outwardly around the edge of the rear cover 50. The recessed grooves 510 cover the surface of the raised blocks 410 in a gap-type manner. Recessed ribs 511 are formed by riveting on the recessed grooves 510. The recessed ribs 511 are formed after the recessed grooves 510 cover the surface of the raised blocks and abut against the sidewall surface of the bracket 40 in an interference fit manner, thereby fixing the rear cover 50 and the bracket 40. A cavity is formed between the rear cover 50 and the bracket 40. The control board 10 is located in the cavity and connected to the bracket 40. A sealing assembly is filled between the bracket 40 and the rear cover 50. One end of the wiring harness assembly 60 is located in the cavity and connected to the control board 10.

[0063] In the embodiment of the present application, the back cover 50 and the bracket 40 are firmly connected by the recessed ribs 511 on the recessed groove 510, thereby ensuring the connection stability between the back cover 50 and the bracket 40. There is no need to introduce screws for locking, which reduces the locking process and can greatly reduce the risk of tripping in a vibration environment.

[0064] In an optional embodiment, the sealing component can be a rubber ring or rubber strip made of elastic material, or a sealing material made of other materials, which is not limited in the embodiment of the present application.

[0065] In one embodiment, the back cover 50 is made of metal, and a recessed rib 511 is formed on the sidewall of the recessed groove 510 by riveting.

[0066] Based on the fluidity of the metal itself, a recessed rib 511 is formed on the recessed groove 510 by a riveting process to achieve a fixed connection between the back cover 50 and the bracket 40. This method is easy to operate, simple in process and highly efficient.

[0067] It can be understood that during the riveting process, the contact area between the riveting equipment and the recessed groove 510 is small, which can avoid stress concentration, ensure the stability of the shape of the recessed groove 510 before and after riveting, and further ensure the effectiveness of riveting.

[0068] In the embodiment of the present application, the back cover 50 is first covered on the bracket 40, and the gap-type fitting method is used to ensure that the back cover 50 is easily covered, and the protruding block 410 is inserted into the recessed groove 510, and then the side walls of the recessed groove 510 are respectively applied with riveting pressure toward the protruding block 410, and then the metal fluidity is used to make the protruding block 410 and the recessed groove 510 riveted and fixed together.

[0069] It should be noted that after the protruding block 410 is inserted into the recessed groove 510 , there may be a gap between the back cover 50 and the bracket 40 , or they may abut against each other.

[0070] In an optional embodiment, the riveting process adopts point pressing, which can further avoid concentrated force and ensure the stability of the shape of the concave groove 510 before and after riveting.

[0071] In a preferred embodiment, the back cover 50 is made of aluminum, which has better fluidity and improves the connection strength between the back cover 50 and the bracket 40 .

[0072] In one embodiment, a recessed rib 511 is formed on one sidewall of the recessed groove 510 , and the recessed rib 511 is in interference contact with one sidewall of the protruding block 410 .

[0073] In another embodiment, recessed ribs 511 are formed on the three side walls of the recessed groove 510 , and the three recessed ribs 511 are respectively in interference contact with the three side walls of the protruding block 410 .

[0074] In another embodiment, two opposite side walls of the recessed groove 510 are formed with recessed ribs 511 , and the two recessed ribs 511 are respectively in interference contact with the two side walls of the protruding block 410 .

[0075] In the above three embodiments, the connection firmness between the back cover 50 and the bracket 40 is proportional to the number of the recessed ribs 511, but at the same time, the more recessed ribs 511 formed on the recessed groove 510, the higher the requirements for the equipment for forming the recessed ribs 511, and the more forming processes are involved.

[0076] Preferably, the plurality of protrusions 410 in the embodiment of the present application are distributed along the first symmetry axis on both sides of the bracket 40. The first symmetry axis is located in the plane where the rear cover 50 is located, and symmetrically divides the wiring harness assembly 60 in half.

[0077] Preferably, as shown in FIG2 , the embodiment of the present application forms two recessed ribs 511 on two opposing sidewalls of the recessed groove 510. The two recessed ribs 511 are located at the outermost ends of the recessed groove 510. The two recessed ribs 511 abut not only against the sidewall surfaces of the bracket 40 but also against the two sidewalls of the protruding block 410. The two recessed ribs 511 in the embodiment of the present application ensure a secure connection between the back cover 50 and the bracket 40 while minimizing the number of forming steps.

[0078] In an optional embodiment, as shown in FIG. 2 , the length direction of the recessed ribs 511 located on both sides of the protruding block 410 is parallel to the axis direction of the motor 100 .

[0079] In the embodiment of the present application, the length direction of the recessed rib 511 is parallel to the axial direction of the motor 100 , thereby improving the structural strength of the back cover 50 and further improving the connection firmness between the back cover 50 and the bracket 40 .

[0080] In one embodiment, as shown in FIG. 3 to FIG. 5 , a guiding slope 411 is provided on the protruding block 410 . The guiding slope 411 matches the recessed groove 510 . The recessed groove 510 covers the surface of the protruding block 410 along the direction of the guiding slope 411 .

[0081] That is to say, in the process of covering the recessed groove 510 on the raised block 410, the guide slope 411 serves as a guide so that the recessed groove 510 can cover the surface of the raised block 410 along the direction of the guide slope 411, thereby improving the assembly efficiency and assembly accuracy of the back cover 50 and the bracket 40.

[0082] In an optional embodiment, as shown in Figures 5 and 6, a concave rib block 520 is provided on the side surface of the back cover 50 close to the bracket 40, and a side wall of the concave rib block 520 close to the recessed groove 510 abuts against the inner wall of the bracket 40.

[0083] In the embodiment of the present application, a retaining slope 5211 is formed between the concave rib 520 and the rear cover 50. The retaining slope 5211 abuts against the inner wall of the bracket 40, thereby enhancing the connection between the rear cover 50 and the bracket 40. In addition, the rear cover 50 is generally thin, and the concave rib 520 formed on the rear cover 50 can enhance the structural strength of the rear cover 50 itself.

[0084] In an optional embodiment, there are multiple concave rib blocks 520 , and the shapes of the multiple concave rib blocks 520 are adapted to the inner side wall of the bracket.

[0085] In an alternative embodiment, as shown in FIG6 , the concave rib 520 includes a first rib 521 and a second rib 522, each located at a different position on the rear cover 50. Depending on the assembly requirements between the rear cover 50 and the bracket 40, the shapes of the first rib 521 and the second rib 522 may be the same or different. The concave rib 520 is not limited to the first rib 521 and the second rib 522; multiple concave ribs 520 may be provided on the rear cover 50 as needed, which is not a limitation in this embodiment of the present application.

[0086] During actual operation, it is necessary to apply tension to the wire harness 610. In the prior art, claws are used to fix the wire harness 610 and the terminal, which may become loose or disconnected after being used for a long time.

[0087] In order to solve the above technical problems, in an optional embodiment, as shown in FIG7 , spot welding is used to connect the terminal to the wiring harness 610 . Specifically, the wiring harness assembly 60 includes the wiring harness 610 , the terminal and the wiring seat 620 .

[0088] One end of the terminal is connected to one end of the control board 10, and the other end of the terminal is connected to the wiring harness 610. The terminal holder 620 is connected to the bracket 40, and the terminal is embedded in the terminal holder 620. The terminal holder 620 is provided with a welding groove 621 and an insertion groove. Part of the terminal area is located in the welding groove 621. One end of the wiring harness 610 passes through the insertion groove and is spot-welded to the terminal.

[0089] That is, one end of the wiring harness 610 passes through the insertion slot and is electrically connected to the terminal in the welding slot 621 through a spot welding process. The spot welding process is simple and easy to operate, and it can ensure a secure connection between the terminal and the wiring harness 610, preventing the wiring harness 610 from becoming loose or disconnected after long-term use.

[0090] In an optional embodiment, as shown in FIG. 8 , the stator assembly 20 includes a stator core 220 , a stator winding, and at least two stator mounting frames 210 .

[0091] The stator core 220 has a hollow area 211 at its center. At least two stator mounting frames 210 are connected to the bracket 40. The stator mounting frames 210 extend from the inner wall of the hollow area 211 toward the center of the stator core 220. The at least two stator mounting frames 210 are spaced apart.

[0092] The hollow area 211 extends between adjacent stator mounting frames 210 to reduce the mass of the stator mounting frames 210. It is also worth noting that the hollow area 211 extends along the axial direction of the stator core 220, which not only meets the lightweight requirements, but also reduces wind resistance, improves the heat dissipation efficiency of the motor, and saves production materials.

[0093] Preferably, the stator core 220 and the stator mounting frame 210 are integrally formed, thereby improving the structural strength and connection firmness of the stator assembly.

[0094] In an optional embodiment, the stator assembly 20 further includes a stator pole shoe connected to the ends of the stator teeth of the stator core 220. The stator pole shoe has symmetrical grooves 231 on one side thereof proximal to the rotor assembly 30. The symmetrical grooves 231 on the stator pole shoe can optimize the cogging torque, thereby reducing noise and vibration.

[0095] In an optional embodiment, as shown in FIG. 4 and FIG. 9 , the rotor assembly 30 includes a connecting member, a rotor housing 320 and a magnet 330 .

[0096] Among them, the connecting part includes an output shaft 311, a first bearing 312 and a second bearing 313. The first bearing 312 and the second bearing 313 are both mounted on the output shaft 311. The first bearing 312 and the second bearing 313 are both connected to the inner wall of the bearing cavity formed by extending the bracket 40. The output shaft 311, the first bearing 312 and the second bearing 313 are coaxial.

[0097] The rotor housing 320 is connected to the output shaft 311 , and a gap 3a4 is present between the rotor housing 320 and the bracket 40 . A through air inlet is provided on the end surface of the rotor housing 320 facing away from the bracket 40 , and the air inlet is connected to the gap.

[0098] The magnet 330 is connected to the inner wall of the rotor housing 320 , and the magnet 330 and the rotor housing 320 rotate along with the output shaft 311 .

[0099] In this embodiment, the side of the rotor housing 320 closest to the control board 10 is a free end. A gap 3a4 exists between this free end and the bracket 40, which improves heat dissipation efficiency. Furthermore, the bracket 40 extends to form a bearing cavity, ensuring the structural strength of the motor and further ensuring stable operation.

[0100] The motor 100 provided in the embodiment of the present application is an external rotor motor, and the stator windings, i.e., electromagnetic coils, each of which is passed through an alternating current. The magnets 330 are permanent magnets, and an interaction force is generated between the magnets 330 and the stator windings. When an alternating current is passed through the stator windings, a rotating magnetic field is generated within the stator assembly 20. This magnetic field generates an interaction force with the magnets 330, causing the magnets 330 and the rotor housing to rotate. Since the current on the stator assembly 20 is alternating current, the magnetic field of the stator windings is constantly changing, causing the interaction force on the rotor assembly to also constantly change, thus causing the rotor assembly to continue rotating.

[0101] In an optional embodiment, as shown in Figures 4 and 9, the first bearing 312 is connected to the bearing cavity near one end of the control board 10, and the first bearing 312 is a transition fit with the output shaft 311, and an interference fit with the bearing cavity.

[0102] The second bearing 313 is connected to the bearing cavity at one end away from the control board 10 . The second bearing 313 is in interference fit with the output shaft 311 , and is in transition fit with the bearing cavity.

[0103] The interference fit can ensure the concentricity of the second bearing 313 relative to the output shaft 311 , thereby ensuring the concentricity between the first bearing 312 and the second bearing 313 , and further ensuring the smooth rotation of the rotor assembly 30 .

[0104] In an optional embodiment, as shown in FIG4 , the connector further includes a limiting member, which is clamped between the first bearing 312 and the output shaft 311 , and / or between the second bearing 313 and the inner wall of the bearing cavity.

[0105] The positions of the first bearing 312 and the second bearing 313 are limited by a limiting member to prevent axial transmission.

[0106] Furthermore, the limiting member is a retaining spring 314 and / or a wave washer. Both the retaining spring 314 and the wave washer have a good clamping effect, which can prevent the first bearing 312 and the second bearing 313 from axial transmission.

[0107] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations of the claims. Various modifications and variations may be made to the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form additional embodiments of the present application that may not be explicitly described. Therefore, the above embodiments merely illustrate several implementations of the present application and do not limit the scope of protection of the patent application.

Claims

1. A motor for an automotive condenser, characterized in that, Comprising: A control board (10); A stator assembly (20), which is connected to the control board (10); A rotor assembly (30), which surrounds the periphery of the stator assembly (20); A bracket (40), which is connected to the stator assembly (20), and a plurality of raised blocks (410) are provided on the side wall of the bracket (40); A rear cover (50), a plurality of recessed grooves (510) are formed by surrounding outward at the edge thereof, the recessed grooves (510) cover the surface of the raised blocks (410) in an intermittent manner, a recessed rib (511) is formed by press riveting on the recessed groove (510), and the recessed rib (511) is formed after the recessed groove (510) covers the surface of the raised block (410) and is in interference fit with the side wall surface of the bracket (40), so that the rear cover (50) is fixedly connected to the bracket (40), a cavity is formed between the rear cover (50) and the bracket (40), and the control board (10) is located in the cavity and is connected to the bracket (40); A sealing assembly, which is filled between the bracket (40) and the rear cover (50); A wire harness assembly (60), one end of which is located in the cavity and is connected to the control board (10).

2. The motor for an automotive condenser according to claim 1, characterized in that, The material of the rear cover (50) is metal, and the recessed rib (511) is formed by press riveting on the side wall of the recessed groove (510).

3. The motor for an automotive condenser according to claim 1, characterized in that, The recessed ribs (511) are formed on both side walls of the relatively arranged recessed grooves (510), and the two recessed ribs (511) are respectively in interference fit with the two side walls of the raised block (410).

4. The motor for an automotive condenser according to claim 3, characterized in that, The length directions of the recessed ribs (511) on both sides of the raised block (410) are parallel to the axis direction of the motor.

5. The motor for an automotive condenser according to claim 1, wherein, A guiding inclined surface (411) is provided on the raised block (410), the guiding inclined surface (411) matches the recessed groove (510), and the recessed groove (510) covers the surface of the raised block (410) along the direction of the guiding inclined surface (411).

6. The motor for an automotive condenser according to claim 1, characterized in that, The plurality of raised blocks (410) are distributed on both sides of the bracket (40) along the first symmetry axis.

7. The motor for an automotive condenser according to claim 1, wherein, A concave rib block (520) is provided on the surface of the rear cover (50) close to the bracket (40), and one side wall of the concave rib block (520) close to the recessed groove (510) abuts against the inner wall of the bracket (40).

8. The motor for an automotive condenser according to claim 7, wherein, The number of the concave rib blocks (520) is provided with a plurality, and the shapes of the plurality of concave rib blocks (520) are adapted to the inner side wall of the bracket (40).

9. The motor for an automotive condenser according to claim 1, characterized in that, The wire harness assembly (60) includes: A wire harness (610); A terminal, one end of which is connected to one end of the control board (10), and the other end is connected to the wire harness (610); A wiring base (620), which is connected to the bracket (40), the terminal is embedded in the wiring base (620), a welding groove (621) and an insertion groove are provided on the wiring base (620), a partial area of the terminal is located in the welding groove (621), and one end of the wire harness (610) passes through the insertion groove and is spot welded to the terminal.

10. The motor for an automotive condenser according to claim 1, wherein The stator assembly (20) includes: The stator core (220) has a hollow area (211) at its center; At least two stator mounting brackets (210) are connected to the bracket (40), and the stator mounting brackets (210) extend from the inner wall of the hollow area (211) towards the center of the stator core (220); At least two of the stator mounting brackets (210) are spaced apart; The stator winding is wound around the stator core (220).

11. The motor for an automotive condenser according to claim 10, wherein, The stator assembly (20) further includes stator pole shoes, which are connected to the ends of the stator teeth of the stator core (220), and symmetric grooves (231) are provided on the side of the stator pole shoes close to the rotor assembly (30).

12. The motor for an automotive condenser according to claim 1, characterized in that, The rotor assembly (30) includes: A connecting member, which includes an output shaft (311), a first bearing (312) and a second bearing (313). Both the first bearing (312) and the second bearing (313) are sleeved on the output shaft (311), and both the first bearing (312) and the second bearing (313) are connected to the inner wall of the bearing cavity formed by the extension of the bracket (40). The output shaft (311), the first bearing (312) and the second bearing (313) are coaxial; A rotor housing (320) is connected to the output shaft (311), and there is a gap between the rotor housing (320) and the bracket (40). An air inlet that penetrates is provided on the end face of the rotor housing (320) facing away from the bracket (40), and the air inlet is communicated with the gap; Magnets are connected to the inner wall of the rotor housing (320), and the magnets and the rotor housing (320) rotate along with the output shaft (311).

13. The motor for an automotive condenser according to claim 12, characterized in that, The first bearing (312) is connected to the bearing cavity at one end close to the control board (10). There is an interference fit between the first bearing (312) and the output shaft (311), and an interference fit between it and the bearing cavity; The second bearing (313) is connected to the bearing cavity at one end far from the control board (10). There is an interference fit between the second bearing (313) and the output shaft (311), and an interference fit between it and the bearing cavity.

14. The motor for an automotive condenser according to claim 13, characterized in that, The connecting member further includes a limiting member, and the limiting member is clamped between the first bearing (312) and the output shaft (311), and / or clamped between the second bearing (313) and the inner wall of the bearing cavity.

15. The motor for an automotive condenser according to claim 14, characterized in that, The limiting member is a circlip (314) and / or a wave washer.

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