Seat motor, vehicle body control system and vehicle

Abstract

The utility model discloses a seat motor, car body control system and car, include: motor body, install the box, install the box to be located at the radial outside of motor body, and install the box hollow setting to with motor body form first containing space to one side of motor body, install the cover, install the cover to be located at the axial one side of motor body and with motor body form second containing space, and install the cover with install the box are not connected, control PCB board, install in first containing space, hall PCB board, install in second containing space, and control PCB board with hall PCB board electricity is connected. The utility model can simplify the wire harness, reduce the burden to the field control, is highly integrated and has the commonality to reduce the development cost.

Description

Technical Field

[0001] This utility model relates to the automotive field, and in particular to a seat motor, a body control system, and an automobile. Background Technology

[0002] Currently, the seat motor functions only as an actuator, driven by a vehicle domain controller that integrates its control unit. The motor itself has a built-in connector and an internal Hall effect acquisition circuit board (containing Hall sensors, through-hole capacitors, and inductors). However, this centralized control scheme has significant drawbacks: the domain controller's hardware and software development is complex, time-consuming, and costly; the wiring harness is too long; and it places higher demands on the domain controller's chip computing power and hardware specifications, leading to increased prices. Utility Model Content

[0003] The purpose of this invention is to solve the problems of complex design, inefficient development, inefficient connection, and high hardware cost of current seat motors. This invention provides a seat motor, a vehicle body control system, and an automobile that simplifies wiring harnesses, reduces the burden on domain control, is highly integrated, and has universality, thereby reducing development costs.

[0004] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a seat motor, comprising:

[0005] Motor body;

[0006] The mounting box is located on the radial outer side of the motor body, and the side of the mounting box facing the motor body is hollow to form a first receiving space with the motor body;

[0007] The mounting cover is located on one axial side of the motor body and forms a second receiving space with the motor body. The mounting cover is not connected to the mounting box.

[0008] The control PCB board is installed in the first accommodating space;

[0009] A Hall effect PCB board is installed in the second accommodating space, and the control PCB board is electrically connected to the Hall effect PCB board.

[0010] Using the above technical solution, the control PCB board is installed in the first receiving space, and the Hall PCB board is installed in the second receiving space. The control PCB board and the Hall PCB board are electrically connected. In this way, the control unit is also integrated into the seat motor. That is to say, the control unit originally integrated into the domain controller is integrated into the seat motor. In terms of hardware: the integration of the domain controller hardware module is reduced, thereby reducing complexity and chip computing power. Moreover, since the control unit is also integrated into the seat motor, there is no need for wiring harnesses to connect the actuator of the seat motor to the domain controller, reducing the amount of wiring harness used from the domain controller to the seat motor. In terms of software: the domain controller software module is removed, reducing the software development time and cost of the domain controller.

[0011] Meanwhile, the mounting box and the mounting cover are not connected, meaning they are two independent components that are assembled separately. When a problem occurs with the motor, they can be tested separately, making it easier to find the root cause of the problem and to replace the faulty parts.

[0012] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a seat motor, wherein the mounting box includes an arc-shaped mounting bottom surface, the arc-shaped mounting bottom surface is attached to the radial outer surface of the motor body, so that the mounting box covers the radial outer surface of the motor body.

[0013] By adopting the above technical solution, and by setting an arc-shaped mounting bottom surface, the mounting box is made to fit in close contact with the radial outer surface of the motor body, thereby reducing the space installation height and improving the installation stability.

[0014] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a seat motor, wherein the arc-shaped mounting bottom surface is connected to the radial outer surface of the motor body by an adhesive tape.

[0015] Using the above technical solution, the mounting box can be connected to the radial outer surface of the motor body with simple tape.

[0016] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a seat motor, wherein elastic buckles are provided on both sides of the mounting box along the circumference of the motor body, and the control PCB board is limited to the elastic buckles.

[0017] By adopting the above technical solution, elastic buckles are set on both sides of the mounting box to limit the control PCB board and prevent it from shaking inside the mounting box, thereby affecting the motor performance.

[0018] According to another specific embodiment of the present invention, a seat motor is disclosed. The motor body has a first opening on one axial side end. The first opening is connected to the first accommodating space and the second accommodating space. The Hall PCB board and the control PCB board are arranged perpendicularly to each other and connected by a flexible flat cable or an FPC. One end of the flexible flat cable or the FPC is connected to the Hall PCB board, and the other end passes through the first opening and is connected to the control PCB board.

[0019] Using the above technical solution, the flexible flat cable and FPC (Flexible Printed Circuit) can be bent, folded, and twisted to fit the narrow and irregular internal space of the seat motor. In other words, the flexible flat cable and FPC can be bent to connect the mutually perpendicular control PCB board and Hall PCB board.

[0020] According to another specific embodiment of the present invention, a seat motor is disclosed, wherein a positioning post is provided on the side of the mounting cover facing the motor body, and a corresponding positioning hole is provided on the Hall PCB board, and the positioning post passes through the positioning hole.

[0021] Using the above technical solution, the Hall PCB board can be installed on the mounting cover by passing the positioning pin through the positioning hole.

[0022] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a seat motor, the seat motor further comprising a connector port, the connector port being integrally formed with the mounting cover and disposed on the side of the mounting cover facing away from the motor body.

[0023] According to another specific embodiment of the present invention, a seat motor is disclosed, wherein a first connecting PIN is provided in the second accommodating space, one end of the first connecting PIN is located in the connector port, and the other end is connected to the Hall PCB board.

[0024] According to another specific embodiment of the present invention, a seat motor is disclosed, wherein a reinforcing member is provided on the side of the mounting cover facing away from the connector port, and one end of the first connecting PIN passes through the reinforcing member so that it is located inside the connector port.

[0025] By adopting the above technical solution, the thickness through which the first connecting PIN passes is increased by setting up a reinforcing member, thereby increasing the load-bearing capacity of the mounting cover.

[0026] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a seat motor, wherein a portion of the outer periphery of the mounting cover is recessed in a direction away from the motor body to form a placement platform, and the Hall PCB board is placed on the placement platform.

[0027] The present invention also discloses a vehicle body control system, comprising: a domain controller and a seat motor as described in any of the above embodiments, wherein the domain controller and the seat motor are connected via a LIN bus.

[0028] By adopting the above technical solution, the control unit is also integrated into the seat motor. In other words, the control unit, originally integrated into the domain controller, is now integrated into the seat motor. On the software side, the domain controller software module is removed, reducing the domain controller's software development time and cost. Furthermore, the seat motor's design and assembly concept allows for modularization, facilitating upgrades and modifications to the entire vehicle system.

[0029] An embodiment of this utility model also discloses an automobile, including: a body control system as described in the above embodiments. Attached Figure Description

[0030] Figure 1 A perspective view of the seat motor provided in an embodiment of the present invention is shown;

[0031] Figure 2 A cross-sectional view of the seat motor provided in an embodiment of the present invention is shown;

[0032] Figure 3 An exploded view of the motor body and mounting cover of the seat motor provided in an embodiment of the present invention is shown.

[0033] Figure 4 An exploded view of the motor body, mounting box, and control PCB board of the seat motor provided in this embodiment of the present invention is shown.

[0034] Figure 5 An exploded view of the motor body, mounting box, control PCB board, and tape of the seat motor provided in this embodiment of the present invention is shown.

[0035] Figure 6 An exploded view of the mounting cover and Hall PCB board of the seat motor provided in an embodiment of the present invention is shown.

[0036] Figure 7 An exploded view of the seat motor provided in an embodiment of this utility model is shown.

[0037] In the attached figures, the following labels are used:

[0038] 100. Motor body; 101. Motor shaft; 102. First end; 103. Second end; 104. Snap-fit ​​groove; 105. First opening;

[0039] 200. Mounting box; 201. Curved mounting base; 210. Elastic buckle; 211. Elastic protrusion; 220. First receiving space;

[0040] 300. Mounting cover; 301. Reinforcing member; 302. Reinforcing plate; 303. Placement platform; 304. Positioning post; 305. Second receiving space;

[0041] 400. Control PCB board; 401. Second solder joint;

[0042] 500, Hall effect PCB board; 501, positioning hole; 502, first solder joint; 503, placement part; 504, connecting hole; 505, third solder joint; 506, Hall effect sensor;

[0043] 600. Adhesive tape;

[0044] 700, flexible flat cable;

[0045] 800, Connector port; 801, First connection pin;

[0046] 900, Brush; 901, Brush holder; 903, Connecting post. Detailed Implementation

[0047] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0048] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0050] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0051] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0053] Currently, the seat motor functions only as an actuator, driven by a vehicle domain controller that integrates its control unit. The motor itself has a built-in connector and an internal Hall effect acquisition circuit board (containing Hall sensors, through-hole capacitors, and inductors). However, this centralized control scheme has significant drawbacks: the domain controller's hardware and software development is complex, time-consuming, and costly; the wiring harness is too long; and it places higher demands on the domain controller's chip computing power and hardware specifications, leading to increased prices.

[0054] Therefore, refer to Figure 1 This application provides a seat motor in which the control units of multiple seat motors originally integrated into a domain controller are independently designed as miniaturized controllers and integrated into the existing seat motors. This reduces the length of the wiring harness, lowers the difficulty and cost of system development, and also reduces the hardware cost of the independent motor control unit.

[0055] For example, this application discloses a vehicle body control system, wherein the body control system includes a domain controller and a seat motor, and the domain controller and the seat motor are connected via a LIN bus.

[0056] refer to Figure 1 and Figure 2The aforementioned seat motor includes: a motor body 100, a mounting box 200, a mounting cover 300, a control PCB board 400, and a Hall effect PCB board 500. The mounting box 200 is located radially outward of the motor body 100, and its side facing the motor body 100 is hollow to form a first receiving space 220 with the motor body 100. The mounting cover 300 is located on one axial side of the motor body 100 and forms a second receiving space 305 with the motor body 100; the mounting cover 300 is not connected to the mounting box 200. The control PCB board 400 is mounted in the first receiving space 220; the Hall effect PCB board 500 is mounted in the second receiving space 305. The control PCB board 400 and the Hall effect PCB board 500 are electrically connected and perpendicular to each other.

[0057] Using the above technical solution, the control PCB board 400 is installed in the first receiving space 220, and the Hall PCB board 500 is installed in the second receiving space 305. The control PCB board 400 and the Hall PCB board 500 are electrically connected. In this way, the control unit is also integrated into the seat motor. That is to say, the control unit originally integrated into the domain controller is integrated into the seat motor. In terms of hardware: the integration of the domain controller hardware module is reduced, thereby reducing complexity and chip computing power. Moreover, since the control unit is also integrated into the seat motor, there is no need for wiring harnesses to connect the actuator of the seat motor to the domain controller, reducing the amount of wiring harness used from the domain controller to the seat motor. In terms of software: the domain controller software module is removed, reducing the software development time and cost of the domain controller.

[0058] Meanwhile, the mounting box 200 and the mounting cover 300 are not connected, meaning that the mounting box 200 and the mounting cover 300 are two independent components that are assembled independently. When the seat motor has a problem, they can be tested separately, making it easier to find the root cause of the problem and to replace it.

[0059] Specifically, refer to Figure 3 The motor body 100 along the axial direction (i.e. Figure 3 Extending in the X direction (as shown), and hollow inside, a motor shaft 101 is provided inside, and the motor shaft 101 is along the axial direction of the motor body 100 (i.e., Figure 3 Extending along the axial direction of the motor body 100 (as shown in the X direction), the motor body 100 includes a first end 102 and a second end 103 (i.e., the aforementioned axial side). The second end 103 is provided with two snap-fit ​​grooves 104, which are located along the circumferential direction of the motor body 100 (i.e., along the X direction). Figure 3 As shown in direction A, the mounting cover 300 is inserted into the card slot 104 to connect with the motor body 100.

[0060] It should be noted that the specific number and shape of the snap-fit ​​slots 104 are not limited in this application embodiment, as long as the mounting cover 300 can be connected to the motor body 100. For example, three snap-fit ​​slots 104 can also be provided.

[0061] It is understood that the embodiments of this application do not limit the connection method between the mounting cover 300 and the motor body 100, and the mounting cover 300 and the motor body 100 can also be connected by screws.

[0062] For example, refer to Figure 2 and Figure 4 The mounting box 200 is hollow on the side facing the motor body 100 to form the first accommodating space 220 mentioned above, thereby accommodating the control PCB board 400. This side is provided with an arc-shaped mounting bottom surface 201, which is attached to the radial outer surface of the motor body 100 so that the mounting box 200 covers the radial outer surface of the motor body 100, thereby reducing the space installation height and improving the installation stability.

[0063] Specifically, the arc-shaped mounting base 201 is connected to the radial outer surface of the motor body 100 by tape 600, such as double-sided tape.

[0064] For example, refer to Figure 4 and Figure 5 Along the circumference of the motor body 100 (i.e. Figure 4 As shown in direction A), two spaced elastic latches 210 are provided on each side of the mounting box 200, and the control PCB board 400 is confined within the elastic latches 210. Specifically, the elastic latches 210 are arranged radially along the motor body 100 (i.e., Figure 4 Extending in the X direction (as shown), and having an elastic protrusion 211 on the side away from the motor body 100, the elastic protrusions 211 on both sides of the mounting box 200 protrude in opposite directions. When the control PCB board 400 is installed in the mounting box 200, the elastic protrusions 211 will clamp the control PCB board 400 and fix and limit it to prevent it from shaking in the first receiving space 220, thereby affecting the motor performance.

[0065] It should be noted that the number of elastic buckles 210 is not limited in this application embodiment. There may be one, three or other elastic buckles 210 on each side of the mounting box 200.

[0066] For example, refer to Figure 6 and Figure 7 and combined Figure 2The motor body 100 is hollow inside. The mounting cover 300 is connected to the axial end of the motor body 100 (i.e., the second end 103) to form a second receiving space 305. The second receiving space 305 is used to mount the Hall PCB board 500. The mounting cover 300 has a positioning post 304 on the side facing the motor body 100. The Hall PCB board 500 has a corresponding positioning hole 501. The positioning post 304 passes through the positioning hole 501 to mount the Hall PCB board 500 on the mounting cover 300.

[0067] It should be noted that the number of positioning pins 304 and positioning holes 501 is not limited in this application embodiment. As long as the number of positioning pins 304 and positioning holes 501 is the same, the number of positioning pins 304 and positioning holes 501 can also be two, three, etc.

[0068] For example, the motor body 100 has a first opening 105 on one axial side (i.e., the second end 103). The first opening 105 is connected to the first receiving space 220 and the second receiving space 305. The Hall PCB board 500 and the control PCB board 400 are connected by a flexible flat cable 700 or an FPC. One end of the flexible flat cable 700 or the FPC (Flexible Printed Circuit) is connected to the Hall PCB board 500, and the other end passes through the first opening 105 and is connected to the control PCB board 400.

[0069] Specifically, the Hall PCB board 500 has nine first solder points 502, the control PCB board 400 has nine second solder points 401, one end of nine flexible flat cables 700 or FPCs is bent and soldered to the first solder points 502 of the Hall PCB board 500, and the other end of the nine flexible flat cables 700 or FPCs is bent and soldered to the second solder points 401 of the control PCB board 400 after passing through the first opening 105.

[0070] It should be noted that the shape of the first opening 105 is not limited in this embodiment, as long as it allows nine flexible flat cables 700 or FPCs to pass through. For example, the first opening 105 shown in this embodiment is rectangular. Similarly, the number of flexible flat cables 700 or FPCs is not limited in this embodiment, and can be selected according to actual needs, such as five, eight, or ten.

[0071] It should be noted that the embodiments of this application do not limit the number and specific location of the first solder point 502 and the second solder point 401. The number of the first solder point 502 and the second solder point 401 can be equal to or greater than the number of the flexible flat cable 700 or FPC. At the same time, the position of the first solder point 502 on the Hall PCB board 500 can be selected according to actual needs, and the position of the second solder point 401 on the control PCB board can also be selected according to actual needs.

[0072] For example, the flexible flat cable 700 and the FPC (Flexible Printed Circuit) can be bent, folded, and twisted to fit the narrow and irregular internal space of the seat motor. In other words, the flexible flat cable 700 and the FPC can be bent to connect the mutually perpendicular control PCB board 400 and Hall PCB board 500.

[0073] For example, refer to Figure 2 and Figure 7 The seat motor also includes a connector port 800, which is integrally formed with the mounting cover 300 and located on the side of the mounting cover 300 facing away from the motor body 100. A first connecting pin 801 is provided within the connector port 800, with one end of the first connecting pin 801 located inside the connector port 800 and the other end connected to the Hall PCB board 500. Specifically, the Hall PCB board 500 has four third solder points 505, and the other end of the first connecting pin 801 is soldered to the third solder points 505 of the Hall PCB board 500.

[0074] For example, a reinforcing member 301 is provided on the side of the mounting cover 300 facing away from the connector port 800. One end of the first connecting PIN 801 passes through the mounting cover 300 and is located inside the connector port 800 along with the reinforcing member 301. By providing the reinforcing member 301, the thickness through which the first connecting PIN 801 passes is increased, thereby increasing the load-bearing capacity of the mounting cover 300. Specifically, the reinforcing member 301 consists of two reinforcing plates 302, which are spaced apart and both protrude in the direction toward the first connecting PIN 801.

[0075] For example, a portion of the outer periphery of the mounting cover 300 is recessed in a direction away from the motor body 100 to form a placement platform 303. The Hall PCB board 500 has a placement portion 503, which extends in a direction away from the center of the Hall PCB board 500, and the placement portion 503 is placed on the placement platform 303.

[0076] For example, the seat motor also includes a brush 900. The mounting cover 300 has a brush holder 901 on the side facing the motor body 100. The brush holder 901 has two spaced-apart connecting posts 903 on the side facing the Hall PCB board 500. The Hall PCB board 500 has corresponding connecting holes 504. The connecting posts 903 pass through the connecting holes 504 to fix the brush holder 901 on the Hall PCB board 500. The side of the brush holder 901 facing the brush 900 has a brush fixing groove (not shown in the figure). The brush 900 is confined in the brush fixing groove to fix it to the brush holder 901. The brush 900 is connected to the Hall PCB board 500 through a connecting wire (not shown in the figure).

[0077] In summary, the seat motor provided in this application embodiment integrates the original domain controller's control part for the seat motor into a miniaturized controller integrated into the existing motor, thereby reducing wiring harness length and lowering system development difficulty and cost. The seat actuator structure consists of two PCB boards (Hall PCB board 500 and control PCB board 400). The annular Hall PCB board 500 is embedded in the mounting cover 300, thus being installed inside the motor body 100, and carries a Hall sensor 506 and a brush 900. The control PCB board 400 is radially parallel to and perpendicular to the Hall PCB board 500 of the motor body 100. The two PCB boards are connected and communicate via a flexible flat cable 700 or an FPC. The control PCB board 400 is fixed in the mounting box 200 by a side elastic clip 210. The contoured wall of the mounting box 200 (i.e., the arc-shaped mounting bottom surface 201) is adhered to the radial outer surface of the motor body using double-sided adhesive. The mounting cover 300 also integrates a connector port 800 which is soldered together with the Hall PCB board 500. The Hall sensor 506 is soldered vertically on the inner ring of the Hall PCB board 500, close to the motor magnetic ring.

[0078] This provides at least the following advantages: From the electronic system level: it reduces the amount of wiring harness used from the domain controller to the seat motor; it reduces the integration of the domain controller hardware modules, thereby reducing complexity and chip computing power; and it eliminates the seat controller software module, thereby reducing the software development time and cost of the domain controller. From the seat actuator structure: the seat actuator saves on the cost of the housing and connectors of the independent controller; the design concept of the control PCB board 400 can be standardized and applied to other seat motors; and it allows for rapid development and switching based on existing motors.

[0079] For ease of understanding, the installation method of the seat motor is briefly described here: First, the brush holder 901 is installed onto the Hall PCB board 500 via the connecting post 903. The brush 900 is fixed in the brush fixing groove of the brush holder 901 and soldered to the Hall PCB board 500 via a connecting wire. Then, one end of the flexible flat cable 700 or FPC is bent and soldered to the first solder point 502 of the Hall PCB board 500. The Hall sensor 506 has been pre-soldered onto the Hall PCB board 500 and is perpendicular to the Hall PCB board 500. Then, the Hall PCB board 500 is installed on the mounting cover 300 by the positioning post 304, and the mounting cover 300 is snapped into the snap-fit ​​groove 104 of the motor body 100. The other end of the flexible flat cable 700 or FPC passes through the first opening 105 and is soldered to the second solder point 401 of the control PCB board 400. One end of the first connecting PIN 801 passes through the mounting cover 300 and is located in the connector port 800 with the reinforcing member 301. The other end of the first connecting PIN 801 is soldered to the third solder point 505 of the Hall PCB board 500. The control PCB board 400 is embedded in the mounting box 200 by the elastic buckle 210 inside the mounting box 200. Double-sided tape 600 is pasted to the arc-shaped mounting bottom surface 201, and the mounting cover 300 and the motor body 100 are rotated and fastened.

[0080] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A seat motor, characterized in that, include: Motor body; The mounting box is located on the radial outer side of the motor body, and the side of the mounting box facing the motor body is hollow to form a first receiving space with the motor body; The mounting cover is located on one axial side of the motor body and forms a second receiving space with the motor body. The mounting cover is not connected to the mounting box. The control PCB board is installed in the first accommodating space; A Hall effect PCB board is installed in the second accommodating space, and the control PCB board is electrically connected to the Hall effect PCB board.

2. The seat motor as described in claim 1, characterized in that, The mounting box includes an arc-shaped mounting bottom surface, which is attached to the radial outer surface of the motor body so that the mounting box covers the radial outer surface of the motor body.

3. The seat motor as described in claim 2, characterized in that, The arc-shaped mounting base is connected to the radial outer surface of the motor body by tape.

4. The seat motor as described in claim 2, characterized in that, Along the circumference of the motor body, elastic buckles are provided on both sides of the mounting box, and the control PCB board is limited to the elastic buckles.

5. The seat motor as described in claim 1, characterized in that, The motor body has a first opening on one axial side end, which is connected to the first accommodating space and the second accommodating space. The Hall PCB board and the control PCB board are arranged perpendicularly to each other and connected by a flexible flat cable or an FPC. One end of the flexible flat cable or the FPC is connected to the Hall PCB board, and the other end passes through the first opening and is connected to the control PCB board.

6. The seat motor as described in claim 1, characterized in that, The mounting cover has a positioning post on the side facing the motor body, and the Hall PCB board has a corresponding positioning hole, through which the positioning post passes.

7. The seat motor as described in claim 1, characterized in that, The seat motor also includes a connector port, which is integrally formed with the mounting cover and located on the side of the mounting cover facing away from the motor body.

8. The seat motor as described in claim 7, characterized in that, The second accommodating space is provided with a first connecting PIN, one end of which is located inside the connector port, and the other end is connected to the Hall PCB board.

9. The seat motor as described in claim 8, characterized in that, The mounting cover has a reinforcement on the side facing away from the connector port, and one end of the first connecting PIN passes through the reinforcement so that it is located inside the connector port.

10. The seat motor as described in claim 1, characterized in that, The outer periphery of the mounting cover is recessed in a direction away from the motor body to form a placement platform, on which the Hall PCB board is placed.

11. A vehicle body control system, characterized in that, include: A domain controller and a seat motor as described in any one of claims 1-10, wherein the domain controller and the seat motor are connected via a LIN bus.

12. A car, characterized in that, include: The vehicle body control system as described in claim 11.

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