Integrated steering motor control device

Abstract

The utility model discloses an integral type steering motor control device, include: support, motor assembly, PCB board, connector subassembly and cover, motor assembly is connected in support, and has six redundancy UVW three -phase, and six redundancy UVW three -phase is along the output shaft of motor assembly and presents central point symmetry distribution, PCB board is used for connecting electronic component, and PCB board can detachable connection in support, and with six redundancy UVW three -phase all electricity is connected, connector subassembly can detachable connection in support, and can with PCB board electricity is connected, cover cover is established in PCB board, six redundancy UVW three -phase and connector subassembly, and with support detachable connection. The utility model can effectively solve the problem that the prior art lacks the use demand of satisfying the high performance of electric power steering motor controller and the small size.

Description

Technical Field

[0001] This utility model relates to the field of steering controller technology, specifically to an integrated steering motor control device. Background Technology

[0002] An electric power steering controller is a power steering controller that relies on an electric motor to provide auxiliary torque. It mainly consists of a control unit and a power drive unit.

[0003] Currently, in both new energy vehicles and traditional gasoline vehicles, the electric power steering motor controller (hereinafter referred to as the controller) installed in the cockpit has limited space. Therefore, the controller needs to be as small as possible. To improve the performance of the controller, it is often achieved by increasing the current and increasing the size. This drawback increases the cost of the controller. In addition, increasing the current will lead to increased heat generation of power devices, which increases the risk of device damage. Increasing the size will also make it impossible to install the controller due to the limited space in the cockpit.

[0004] Therefore, there is an urgent need for an integrated steering motor control device that can meet the requirements of high performance and small size for electric power steering motor controllers. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an integrated steering motor control device to solve the technical problem that the existing technology lacks the ability to meet the requirements of high performance and small size of electric power steering motor controllers.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides an integrated steering motor control device, comprising: support; The motor assembly is connected to the bracket and has six redundant UVW three-phase phases, and the six redundant UVW three-phase phases are symmetrically distributed along the output shaft of the motor assembly at the center point. A PCB board for connecting electronic components, the PCB board being detachably connected to the bracket and electrically connected to the six redundant UVW three-phase components; A connector assembly, detachably connected to the bracket and electrically connected to the PCB board; and The cover is placed over the PCB board, the six redundant UVW three-phase connectors, and is detachably connected to the bracket.

[0007] In some embodiments, the integrated steering motor control device further includes six conductive terminals, which are arranged one-to-one with the redundant UVW three phases and connected to the PCB board, and the conductive terminals can be electrically connected to the redundant UVW three phases.

[0008] In some embodiments, the PCB board has six through holes respectively opposite to the six redundant UVW phases, and the redundant UVW phases pass through the through holes and protrude from the PCB board. The conductive terminals are disposed on one side of the through holes and are soldered to the redundant UVW phases.

[0009] In some embodiments, the PCB board is further provided with a plurality of mounting holes, and the integrated steering motor control device further includes a plurality of first fixing seats and a plurality of first fasteners. The first fixing seats are disposed opposite to the mounting holes and connected to the bracket. The first fixing seats are provided with a first threaded hole opposite to the mounting holes. The threaded section of the first fastener passes through the mounting hole and is threadedly connected to the first threaded hole.

[0010] In some embodiments, the bracket has a clamping groove, and the connector assembly includes a connector base, a power connector, a vehicle signal connector, and a sensor connector. The connector base is detachably connected to the clamping groove, and the power connector, vehicle signal connector, and sensor connector are connected to the connector base and electrically connected to the PCB board respectively.

[0011] In some embodiments, the PCB board has a plurality of first pin holes, a plurality of second pin holes, and a plurality of third pin holes. The connector assembly further includes a plurality of first pins, a plurality of second pins, and a plurality of third pins. One end of each of the plurality of first pins is inserted into a first pin hole and is connected to the sensor connector. One end of each of the plurality of second pins is inserted into a second pin hole and is connected to the vehicle signal connector. One end of each of the plurality of third pins is inserted into a third pin hole and is connected to the power connector.

[0012] In some embodiments, at least one guide hole is provided on each side of the clamping groove, and the connector assembly further includes at least two guide posts, one end of which is connected to the connector seat and the other end is slidably inserted into the guide hole.

[0013] In some embodiments, at least one second threaded hole is provided on each side of the clamping groove, and a connecting hole is provided opposite to the second threaded hole in the connector assembly. The connector assembly further includes at least two second fasteners, the threaded sections of the second fasteners passing through the connecting hole and threadedly connected to the second threaded hole, and the large-diameter end of the second fastener abuts against the connector.

[0014] In some embodiments, the connector assembly further includes a connecting sleeve, which is built into the communicating hole and fitted onto the threaded section of the second fastener, and the circumferential sidewall of the connecting sleeve has a plurality of grooves.

[0015] In some embodiments, the integrated steering motor control device further includes a plurality of elastic abutment portions, which are spaced apart circumferentially along the bracket. Each elastic abutment portion has a first segment and a second segment, the cross-sectional area of ​​the first segment being larger than that of the second segment, and the second segment and the bracket forming a plurality of slots. The cover is inserted into the slots and elastically engaged with the first segment.

[0016] Compared with the prior art, the beneficial effects of the integrated steering motor control device provided by this utility model include: the motor assembly is connected to the bracket, and the motor assembly has six redundant UVW three-phase phases, which are symmetrically distributed along the output shaft of the motor assembly at the center point; the PCB board is used to connect electronic components, and the PCB board is detachably connected to the bracket and electrically connected to the six redundant UVW three-phase phases; the connector assembly is detachably connected to the bracket and can be electrically connected to the PCB board to realize electrical conduction between the motor assembly, the PCB board, the electronic components and the connector assembly; the cover is detachably connected to the bracket to form a wrapping and protection for the PCB board, electronic components, the six redundant UVW three-phase phases and the connector assembly. Compared to existing technologies, by setting up brackets and covers, the PCB board, electronic components, six redundant UVW three-phase circuits, and connector assemblies can be integrated into a single structure. At the same time, the motor assembly has six symmetrically arranged redundant UVW three-phase circuits, and the electronic components, in conjunction with the redundant UVW three-phase circuits, can evenly distribute the current, reduce the current and heat generation of individual power devices, and improve the stability and lifespan of the controller system. It is not only compact in structure and small in size but also stable in performance, which can solve the technical problem of the lack of existing technologies that can meet the application requirements of high performance and small size of electric power steering motor controllers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an integrated steering motor control device provided in one embodiment of the present invention; Figure 2 This is a schematic diagram showing the connection between the bracket, PCB board, and motor assembly provided in one embodiment of the present invention; Figure 3 This is a schematic diagram from another perspective showing the connection between the bracket, PCB board and motor assembly provided in one embodiment of the present invention; Figure 4 This is a schematic diagram showing the connection between the bracket, PCB board, and motor assembly provided in another embodiment of the present invention; Figure 5 This is a schematic diagram from another perspective of an embodiment of the present invention, showing an integrated steering motor control device. Figure 6 This is a cross-sectional view of an integrated steering motor control device provided in an embodiment of the present invention; Figure 7 It is along Figure 5 A partial sectional view of line AA in the middle; Figure 8 This is a schematic diagram of the connection between the connector and the connecting sleeve provided in one embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: Bracket 100; Motor assembly 200; Redundant UVW three-phase 210; Conductive terminal 230; Copper sheet 220; PCB board 300; First pin hole 310; Second pin hole 320; Third pin hole 330; Connector assembly 400; Connector base 410; Power connector 420; Vehicle signal connector 430; Sensor connector 440; First pin 450; Second pin 460; Third pin 470; Guide post 480; Second fastener 490; Connecting sleeve 4100; Cover 500; First fixing base 600; First fastener 700; Elastic abutment part 800. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the lack of existing technologies that can meet the requirements of high performance and small size in electric power steering motor controllers, this invention provides an integrated steering motor control device. This device integrates the PCB board 300, electronic components, six redundant UVW three-phase 210s, and connector assembly 400 into a single structure via a bracket 100 and a cover 500. The motor assembly 200 has six symmetrically arranged redundant UVW three-phase 210s, and the electronic components, in conjunction with these redundant UVW three-phase 210s, can evenly distribute the current, reducing the current and heat generation of individual power devices, thus improving the stability and lifespan of the controller system. This design is not only compact and small in size but also offers stable performance.

[0021] Please see Figure 1 , Figures 1 to 4An integrated steering motor control device according to one embodiment of the present invention includes: a bracket 100, a motor assembly 200, a PCB board 300, a connector assembly 400, and a cover 500. The motor assembly 200 is connected to the bracket 100 and has six redundant UVW three-phase 210s, which are symmetrically distributed along the output shaft of the motor assembly 200 at their center points. The PCB board 300 is used to connect electronic components. The PCB board 300 is detachably connected to the bracket 100 and electrically connected to the six redundant UVW three-phase 210s. The connector assembly 400 is detachably connected to the bracket 100 and can be electrically connected to the PCB board 300. The cover 500 covers the PCB board 300, the six redundant UVW three-phase 210s, and the connector assembly 400, and is detachably connected to the bracket 100.

[0022] In this device, compared to existing technologies, the PCB board 300, electronic components, six redundant UVW three-phase 210s, and connector assembly 400 can be integrated into a single structure by setting up the bracket 100 and cover 500. At the same time, the motor assembly 200 has six symmetrically arranged redundant UVW three-phase 210s, and the electronic components are arranged in conjunction with the redundant UVW three-phase 210s to evenly distribute the current, reduce the current and heat generation of individual power devices, and improve the stability and lifespan of the controller system. It is not only compact in structure and small in size but also stable in performance, which can solve the technical problem in existing technologies that lack the ability to meet the requirements of high performance and small size of electric power steering motor controllers.

[0023] Furthermore, the bracket 100 in this device has a space that avoids the output shaft of the motor assembly 200, and the motor assembly 200 is detachably connected to the bracket 100. Here, the motor assembly 200 has six symmetrically arranged redundant UVW three-phase 210s. The six redundant UVW three-phase 210s of the motor are divided into two groups, and the two groups of three-phase UVWs are arranged symmetrically. There is only one non-redundant group. The number of MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors, which are semiconductor devices that control current through electric field effects) in the PCB power devices is twice that of the non-redundant system, and they are also arranged symmetrically. This can evenly distribute the current, reduce the current and heat generation of individual power devices, and improve the stability and lifespan of the controller system. Further details are omitted here.

[0024] Furthermore, the redundant UVW three-phase 210 refers to a dual-redundant motor design used in electric power steering systems to meet the extremely high safety requirements of advanced autonomous driving (such as L3) (failure rate as low as 10 fit). UVW is the symbol for the three phase lines in a three-phase AC power system, representing the three winding terminals of the motor. These three symbols are equivalent to the traditional ABC phase markings, indicating three independent windings. Here, "UVW three-phase" represents the three-phase power lines of the motor. "Redundancy" means that the system is equipped with two completely independent circuits and motor windings (six-phase motor). When the main system (A side) fails, the backup system (B side) can immediately and seamlessly take over, ensuring that the power steering is never interrupted. The redundant UVW three-phase 210 is a conventional setting known to those skilled in the art and will not be elaborated further here.

[0025] Furthermore, the PCB (Printed Circuit Board) mentioned here is one of the most important basic components in the electronics industry. The PCB board 300 is a flexible circuit board that is common and easy to purchase on the market. It is used to realize the electrical connection between the motor assembly 200, electronic components and connector assembly 400. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0026] In this embodiment, the integrated steering motor control device also includes six conductive terminals 230, which are configured one-to-one with the redundant UVW three-phase 210 and connected to the PCB board 300. The conductive terminals 230 can be electrically connected to the redundant UVW three-phase 210.

[0027] Six conductive terminals 230 are provided on the PCB board 300 to realize the electrical connection between the redundant UVW three-phase 210 and the PCB board 300, wherein the conductive terminals 230 are set one-to-one with the redundant UVW three-phase 210.

[0028] Furthermore, the conductive terminal 230 here is a common and readily available electrical connection terminal on the market, which is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0029] In one embodiment, such as Figures 1 to 4 As shown, the PCB board 300 has six through holes for each of the six redundant UVW three-phase 210, and the redundant UVW three-phase 210 passes through the through holes and protrudes from the PCB board 300. The conductive terminal 230 is disposed on one side of the through hole and is soldered to the redundant UVW three-phase 210.

[0030] The redundant UVW three-phase 210 is cylindrical and passes through the through hole on the PCB board 300, and is soldered to the conductive terminal 230 located on the side of the PCB board 300 away from the motor assembly 200.

[0031] Furthermore, the six redundant UVW three-phase 210s are soldered to conductive terminals 230 via resistance welding. The conductive terminals 230 are soldered to the PCB board 300 via SMT process, realizing the electrical connection between the motor assembly 200 and the PCB board 300. The resistance welding process of the conductive terminals 230 improves the utilization rate of PCB wiring space. Here, SMT process is surface mount technology, which achieves high density, miniaturization and high reliability of electronic products by directly soldering components to the PCB surface. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0032] Furthermore, in some embodiments, such as Figure 4 As shown, the redundant UVW three-phase 210 of the motor assembly 200 can be led out with copper sheets 220 by means of copper sheet plastic coating, so that the redundant UVW three-phase 210 and the PCB board 300 can be electrically connected by wave soldering. The method of leading out copper sheets 220 by means of copper sheet plastic coating can eliminate the conductive terminal 230, thereby reducing the number of parts, which will not be described in detail here.

[0033] In this embodiment, as Figure 1 As shown, the PCB board 300 also has multiple mounting holes. The integrated steering motor control device also includes multiple first fixing seats 600 and multiple first fasteners 700. The first fixing seats 600 are arranged opposite to the mounting holes and connected to the bracket 100. The first fixing seats 600 have first threaded holes opposite to the mounting holes. The threaded section of the first fastener 700 passes through the mounting holes and is threadedly connected to the first threaded holes.

[0034] Multiple mounting holes on the PCB board 300 are respectively engaged with multiple first fixing seats 600 and multiple first fasteners 700 to realize a detachable connection between the PCB board 300 and the bracket 100.

[0035] The first fixing seat 600 here is a boss structure that is common and easy to purchase on the market, and the first fastener 700 is a bolt or screw that is common and easy to purchase on the market. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0036] Furthermore, this part is secured with multiple bosses by screws, and a gap is left between it and the heat dissipation contact surface of the motor assembly 200. The gap is filled with a heat-conducting medium to conduct heat from the power device to the motor housing for heat dissipation. This will not be elaborated further here.

[0037] In one embodiment, please refer to Figures 1 to 5The bracket 100 has a clamping groove. The connector assembly 400 includes a connector 410, a power connector 420, a vehicle signal connector 430, and a sensor connector 440. The connector 410 is detachably connected to the clamping groove. The power connector 420, the vehicle signal connector 430, and the sensor connector 440 are connected to the connector 410 and are electrically connected to the PCB board 300 respectively.

[0038] The power connector 420, vehicle signal connector 430 and sensor connector 440 are detachably connected to the bracket 100 by setting the connector 410. The connector 410 and the clamping groove form a mating engagement, which can reduce the overall size of the control device.

[0039] Furthermore, the power connector 420, the vehicle signal connector 430, and the sensor connector 440 are all necessary components for realizing the steering motor control device. They are common and readily available equipment on the market and are conventional settings known to those skilled in the art, so they will not be described in detail here.

[0040] In one embodiment, please refer to Figure 3 The PCB board 300 has multiple first pin holes 310, multiple second pin holes 320 and multiple third pin holes 330. The connector assembly 400 also includes multiple first pins 450, multiple second pins 460 and multiple third pins 470. One end of each of the multiple first pins 450 is inserted into the first pin hole 310 and is connected to the sensor connector 440. One end of each of the multiple second pins 460 is inserted into the second pin hole 320 and is connected to the vehicle signal connector 430. One end of each of the multiple third pins 470 is inserted into the third pin hole 330 and is connected to the power connector 420.

[0041] By setting multiple first pins 450, multiple second pins 460 and multiple third pins 470, electrical connections are made between the PCB board 300 and the power connector 420, the vehicle signal connector 430 and the sensor connector 440.

[0042] Furthermore, the first pin 450, the second pin 460, and the third pin 470 are all common and readily available devices on the market, and are conventional settings known to those skilled in the art, so they will not be described in detail here.

[0043] Furthermore, by integrating all wire harness mating interfaces onto a single component, the number of connector parts is reduced. At the same time, other connector models can be integrated through local adjustments without changing the overall shape, eliminating the need for redesign.

[0044] In one embodiment, please refer to Figures 4 to 6The clamping groove has at least one guide hole on each side. The connector assembly 400 also includes at least two guide posts 480, one end of which is connected to the connector seat 410 and the other end is slidably inserted into the guide hole.

[0045] The mating structure of the guide hole and guide post 480 is used to guide the connecting seat 410 to slide more accurately into the clamping groove.

[0046] In one embodiment, please refer to Figures 4 to 8 At least one second threaded hole is provided on each side of the clamping groove. The connector 410 is provided with a connecting hole relative to the second threaded hole. The connector assembly 400 also includes at least two second fasteners 490. The threaded section of the second fastener 490 passes through the connecting hole and is threadedly connected to the second threaded hole. The large diameter end of the second fastener 490 abuts against the connector 410.

[0047] By setting the second fastener 490 to be threadedly connected to the second threaded hole, the connecting seat 410 and the bracket 100 form a detachable connection structure, which is used to enhance the connection strength and stability of the control device.

[0048] Furthermore, the second fastener 490 here is a bolt or screw that is common in the market and readily available. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0049] In one embodiment, please refer to Figures 6 to 8 The connector assembly 400 also includes a connecting sleeve 4100, which is built into the connecting hole and fitted onto the threaded section of the second fastener 490. The circumferential sidewall of the connecting sleeve 4100 has multiple grooves.

[0050] The connector assembly 400 is secured by screws and threaded holes on the bracket 100; after securing, the screws are in direct contact with the connecting sleeve 4100, and the tightening force of the screws is applied to the connecting sleeve 4100 rather than the plastic part of the connector assembly 400, thus avoiding the risk of cracking due to direct stress on the plastic part.

[0051] Furthermore, grooves are arranged on the peripheral sidewalls of the connecting sleeve 4100, which enhance the embedding strength between the connecting sleeve 4100 and the plastic after injection molding.

[0052] In addition, in some embodiments, the cover 500 and the connecting sleeve 4100 are made of metal materials that are common and readily available on the market. This is a conventional setting known to those skilled in the art and will not be described in detail here.

[0053] In some embodiments, the integrated steering motor control device also includes a plurality of elastic abutment portions 800, which are spaced apart circumferentially along the bracket 100. Each elastic abutment portion 800 has a first segment and a second segment. The cross-sectional area of ​​the first segment is larger than that of the second segment, and the second segment and the bracket 100 together form a plurality of slots. The cover 500 is inserted into the slots and elastically engaged with the first segment.

[0054] The bracket 100 has four elastic abutment parts 800 around its perimeter. The second segment forms a local slot with the edge of the bracket 100. The first segment can hold the cover 500 in place and clamp it. Compared with screw fastening, this method can save the space occupied by the screw itself, improve the utilization of internal space, and save screw parts.

[0055] Furthermore, the cover 500 is provided with four protruding hooks, which are fastened to the motor by riveting and bending the four slots on the bracket 100. This will not be described in detail here.

[0056] In some embodiments, the device also includes a motor rotation angle detection magnet and a magnetoresistive sensor chip. The motor rotation angle detection magnet is connected to the output shaft of the motor assembly 200, and the magnetoresistive sensor chip is set on the PCB board 300 and cooperates with the motor rotation angle detection magnet to realize motor position detection. Further details are omitted here.

[0057] To better understand this utility model, the following is combined with... Figures 1 to 8 The technical solution of this utility model is described in detail below: The motor assembly 200 is connected to the bracket 100, and the motor assembly 200 has six redundant UVW three-phase 210s. The six redundant UVW three-phase 210s are symmetrically distributed along the output shaft of the motor assembly 200 at the center point. The PCB board 300 is used to connect electronic components. The PCB board 300 is detachably connected to the bracket 100 and electrically connected to all six redundant UVW three-phase 210s. The connector assembly 400 is detachably connected to the bracket 100 and can be electrically connected to the PCB board 300 to realize electrical conduction between the motor assembly 200, the PCB board 300, the electronic components, and the connector assembly 400. The cover 500 is detachably connected to the bracket 100 to form a cover and protection for the PCB board 300, the electronic components, the six redundant UVW three-phase 210s, and the connector assembly 400. Compared to existing technologies, by setting up the bracket 100 and the cover 500, the PCB board 300, electronic components, six redundant UVW three-phase 210s and connector assembly 400 can be integrated into a single structure. At the same time, the motor assembly 200 has six symmetrically arranged redundant UVW three-phase 210s, and the electronic components are set up in conjunction with the redundant UVW three-phase 210s to evenly distribute the current, reduce the current and heat generation of individual power devices, and improve the stability and lifespan of the controller system. It is not only compact in structure and small in size, but also stable in performance.

[0058] Furthermore, the motor assembly 200 of this device has two sets of symmetrically arranged six redundant three-phase UVWs, and the PCB power devices are also symmetrically arranged accordingly. This can evenly distribute the current, reduce the current and heat generation of individual power devices, and improve the stability and lifespan of the controller system. The connector assembly 400 is integrally injection molded, integrating power supply, vehicle signal, and sensor signal connectors. All wire harness plug-in interfaces are integrated into one part, reducing the number of connector parts and saving costs. At the same time, it can be compatible with other models of vehicle signal connectors 430 without changing the shape, without the need for a completely new design.

[0059] Furthermore, in this device, the screw locking part of the connector assembly 400 is inlaid with a metal sleeve by injection molding. The tightening force of the screw is applied to the metal sleeve instead of the plastic of the one-piece connector, avoiding the risk of cracking due to direct force on the plastic part.

[0060] Furthermore, the six redundant UVW three-phase 210s of the motor assembly 200 are directly connected to the conductive terminals 230 by resistance welding using copper wires from the internal windings of the motor, which improves the utilization of PCB wiring space. At the same time, the traditional copper sheet plastic coating method can be used for wave soldering, eliminating the need for conductive terminals 230.

[0061] This application, through the aforementioned structure, can solve the technical problem in the prior art of lacking a controller that can meet the requirements of high performance and small size for electric power steering motor controllers.

[0062] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An integrated steering motor control device, characterized in that, include: support; The motor assembly is connected to the bracket and has six redundant UVW three-phase phases, and the six redundant UVW three-phase phases are symmetrically distributed along the output shaft of the motor assembly at the center point. A PCB board for connecting electronic components, the PCB board being detachably connected to the bracket and electrically connected to the six redundant UVW three-phase components; A connector assembly, detachably connected to the bracket and electrically connected to the PCB board; and The cover is placed over the PCB board, the six redundant UVW three-phase connectors, and is detachably connected to the bracket.

2. The integrated steering motor control device according to claim 1, characterized in that, The integrated steering motor control device also includes six conductive terminals, which are arranged one-to-one with the redundant UVW three phases and connected to the PCB board. The conductive terminals can be electrically connected to the redundant UVW three phases.

3. The integrated steering motor control device according to claim 2, characterized in that, The PCB board has six through holes respectively opposite to the six redundant UVW three phases, and the redundant UVW three phases pass through the through holes and protrude from the PCB board. The conductive terminals are disposed on one side of the through holes and are soldered to the redundant UVW three phases.

4. The integrated steering motor control device according to claim 1, characterized in that, The PCB board also has multiple mounting holes. The integrated steering motor control device also includes multiple first fixing seats and multiple first fasteners. The first fixing seats are disposed opposite to the mounting holes and connected to the bracket. The first fixing seats have first threaded holes opposite to the mounting holes. The threaded section of the first fastener passes through the mounting holes and is threadedly connected to the first threaded hole.

5. The integrated steering motor control device according to claim 1, characterized in that, The bracket has a clamping slot. The connector assembly includes a connector base, a power connector, a vehicle signal connector, and a sensor connector. The connector base is detachably connected to the clamping slot. The power connector, vehicle signal connector, and sensor connector are connected to the connector base and are electrically connected to the PCB board respectively.

6. The integrated steering motor control device according to claim 5, characterized in that, The PCB board has multiple first pin holes, multiple second pin holes, and multiple third pin holes. The connector assembly also includes multiple first pins, multiple second pins, and multiple third pins. One end of each of the multiple first pins is inserted into a first pin hole and is connected to the sensor connector. One end of each of the multiple second pins is inserted into a second pin hole and is connected to the vehicle signal connector. One end of each of the multiple third pins is inserted into a third pin hole and is connected to the power connector.

7. The integrated steering motor control device according to claim 5, characterized in that, At least one guide hole is provided on each side of the clamping groove, and the connector assembly also includes at least two guide posts, one end of which is connected to the connector seat and the other end is slidably inserted into the guide hole.

8. The integrated steering motor control device according to claim 5, characterized in that, At least one second threaded hole is provided on each side of the clamping groove, and a connecting hole is provided on the connecting seat opposite the second threaded hole. The connector assembly also includes at least two second fasteners, the threaded section of the second fastener passes through the connecting hole and is threadedly connected to the second threaded hole, and the large diameter end of the second fastener abuts against the connecting seat.

9. The integrated steering motor control device according to claim 8, characterized in that, The connector assembly further includes a connecting sleeve, which is built into the communicating hole and fitted onto the threaded section of the second fastener. The circumferential sidewall of the connecting sleeve has multiple grooves.

10. The integrated steering motor control device according to claim 5, characterized in that, The integrated steering motor control device also includes multiple elastic abutment parts, which are spaced apart circumferentially along the bracket. Each elastic abutment part has a first segment and a second segment. The cross-sectional area of ​​the first segment is larger than that of the second segment, and the second segment and the bracket together form multiple slots. The cover is inserted into the slots and elastically engaged with the first segment.

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