Pin mounting structure, pin, electronic brake assembly and vehicle

Abstract

The utility model discloses a pin mounting structure, a pin, an electronic brake assembly and a vehicle, the pin mounting structure is used for the electronic brake assembly, the pin mounting structure is provided with a through guide hole, and the guide hole is used for accommodating the pin; a first guide face is arranged at one end of the guide hole and inclines relative to the inner wall face of the guide hole. The pin mounting structure and the pins in the electronic brake assembly are simple to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle braking, in particular to a pin installation structure, a pin, an electronic braking assembly and a vehicle. Background Art

[0002] The vehicle braking system is a vital component for ensuring safe operation of the vehicle. Its main function is to slow down or stop the vehicle under the control of the driver, and also to ensure that the vehicle has good stability and controllability under different working conditions. An effective braking system can not only stop the vehicle safely in the shortest distance, but also prevent the vehicle from losing control when making sharp turns or sudden avoidance.

[0003] It is difficult to connect the pins of the electronic brake assembly of the existing brake system and the substrate in the pin mounting structure. Utility Model Content

[0004] The utility model aims to provide a pin installation structure, a pin, an electronic brake assembly and a vehicle, so as to solve the problem of difficult pin assembly.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides a pin mounting structure, which is used for an electronic brake assembly; the pin mounting structure is provided with a penetrating guide hole, which is used to accommodate the pin; a first guide surface is provided at one end of the guide hole, and the first guide surface is inclined relative to the inner wall surface of the guide hole.

[0007] In one embodiment, the pin mounting structure includes a substrate and a first extension portion, the substrate having a first surface and a second surface opposite to each other, the electronic brake assembly also includes a drive module, the second surface faces the drive module, the first extension portion is connected to the substrate and protrudes from the first surface, and the guide hole passes through the substrate and the first extension portion.

[0008] In one embodiment, a distance between an end of the first extension portion away from the substrate and the first surface is d1, satisfying: d1 ≥ 2 mm.

[0009] In one embodiment, the substrate further includes a second extension portion, the second extension portion is connected to the substrate and protrudes from the second surface, the first guide surface is arranged at an end of the second extension portion away from the substrate, and the guide hole passes through the second extension portion.

[0010] In one embodiment, a distance between one end of the second extension portion away from the substrate and the second surface is d2, satisfying: d2≥2 mm.

[0011] In one embodiment, a wall thickness of the second extension portion is greater than a wall thickness of the first extension portion.

[0012] In a second aspect, the utility model provides a pin, which is used to be partially received in the guide hole of the pin mounting structure as described in any one of the first aspects, and the pin includes a second guide surface, and the first guide surface is in close contact with the second guide surface.

[0013] In one embodiment, the pin includes a first contact portion and a second contact portion, one end of the first contact portion is used to connect to a circuit board, and the other end is connected to a first end surface of the second contact portion, the first contact portion and the second contact portion extend in the same direction, the radial dimension of the second contact portion is larger than the radial dimension of the first contact portion, and the radial dimension of the second contact portion is larger than the radial dimension of the guide hole, the second guide surface is connected between the outer peripheral surface of the second contact portion and the first end surface, and the second guide surface is inclined relative to the outer peripheral surface of the second contact portion.

[0014] In one implementation, a gap between the first contact portion and the inner wall of the guide hole is d3, satisfying: d3≤1 mm.

[0015] In one embodiment, the pin further includes a pointed cone, which is disposed at an end of the first contact portion away from the substrate and is used for being inserted into a receiving hole of the circuit board.

[0016] In a third aspect, the utility model provides an electronic brake assembly, comprising:

[0017] An electric control module, comprising a circuit board and the pin mounting structure according to any one of the first aspects, wherein the electric control module is provided with a receiving cavity, the guide hole is connected to the receiving cavity, and the circuit board is received in the receiving cavity;

[0018] A driving module comprises a motor and a pin as described in any one of the second aspects, wherein the first guide surface is arranged at one end of the guide hole close to the driving module, the pin is at least partially accommodated in the guide hole, and one end is connected to the motor and the other end is connected to the circuit board.

[0019] In a fourth aspect, the utility model provides a vehicle, comprising a vehicle body and the electronic brake assembly as described in the third aspect, wherein the electronic brake assembly is arranged in the vehicle body.

[0020] The substrate of the electronic brake assembly of the utility model is provided with a penetrating guide hole, and the pin passes through the guide hole. The first guide surface provides a guide for the pin to pass through the guide hole, so that the connection process between the substrate and the pin is simpler and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 is a cross-sectional view of an electronic braking device according to an embodiment;

[0023] Figure 2 is a partial enlarged view of an electronic brake assembly of an embodiment;

[0024] Figure 3 is a front view of a pin of an embodiment.

[0025] Description of reference numerals:

[0026] 10-pin mounting structure, 11-accommodating cavity, 12-guide hole, 13-substrate, 131-first surface, 132-second surface, 14-first extension portion, 15-second extension portion, 151-first guide surface, 20-circuit board, 21-accommodating hole, 30-pin, 31-first contact portion, 32-second contact portion, 321-second guide surface, 33-housing, 34-cone, 40-motor. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0029] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0030] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] refer to Figure 1 and Figure 2 The utility model provides an electronic brake assembly, including an electric control module and a drive module. The electric control module includes a pin mounting structure 10 and a circuit board 20. The electric control module is provided with a receiving cavity, and the circuit board 20 is received in the receiving cavity. The pin mounting structure 10 includes a pin mounting structure 10, a first extension portion 14 and a second extension portion 15. The drive module includes a motor 40 and a pin 30. One end of the pin 30 is used to connect with the motor 40, and the other end is connected with the circuit board 20.

[0032] The circuit board 20 can be a PCB, i.e. a printed circuit board 20, which can be a single-sided board, a double-sided board, a multi-layer board, a high-density board, etc., without limitation. The circuit board 20 is composed of an insulating base plate, connecting wires, and pads for assembling and welding electronic components, and has the dual functions of a conductive circuit and an insulating base plate. The connection method between the pin mounting structure 10 and the circuit board 20 can be welding, clamping, screwing, etc., without limitation.

[0033] The motor 40 may be a DC motor 40 , an AC motor 40 , a synchronous motor 40 , an asynchronous motor 40 , etc., without limitation. The motor 40 is used to convert electrical energy into mechanical energy.

[0034] In one embodiment, the electric control module has a housing cavity 11 and is provided with a penetrating guide hole 12, the guide hole 12 being connected to the housing cavity 11. The circuit board 20 is accommodated in the housing cavity 11. The pin 30 is at least partially accommodated in the guide hole 12. A first guide surface 151 is provided at one end of the guide hole 12 close to the driving module, and the first guide surface 151 is inclined relative to the inner wall surface of the guide hole 12.

[0035] The first guide surface 151 may be formed by rounding, chamfering, etc., without limitation.

[0036] The pin mounting structure 10 is made of a material with relatively high structural strength, and specifically may be a metal material, high-strength plastic, ceramic, silicon material, etc. The metal material is, for example, aluminum, aluminum alloy, magnesium alloy, iron, and iron alloy, etc.

[0037] The pin mounting structure 10 may be an integrated structure, that is, an integrated structure manufactured by an integrated molding process. The integrated molding process may be injection molding, stamping, casting, etc., without limitation.

[0038] The shape of the guide hole 12 can be rectangular, circular, etc., without limitation.

[0039] The pin mounting structure 10 is also provided with a positioning column to position the circuit board 20 for easy installation. The circuit board 20 is provided with a positioning hole, and the positioning column is correspondingly arranged with the positioning hole.

[0040] The pin mounting structure 10 of the electronic brake assembly of the present invention is provided with a through guide hole 12, and the pin 30 passes through the guide hole 12. The first guide surface 151 provides a guide for the pin 30 to pass through the guide hole 12, thereby making the connection process between the pin mounting structure 10 and the pin 30 simpler and improving production efficiency.

[0041] refer to Figure 1 In one embodiment, the pin mounting structure 10 includes a substrate 13 and a first extension portion 14, the substrate 13 has a first surface 131 and a second surface 132 opposite to each other, the first surface 131 faces the circuit board 20, the first extension portion 14 is connected to the substrate 13 and protrudes from the first surface 131, and the guide hole 12 passes through the substrate 13 and the first extension portion 14.

[0042] The substrate 13 and the first extension portion 14 are made of materials with relatively high structural strength, and specifically may be metal materials, high-strength plastics, ceramics, silicon materials, and the like.

[0043] The first extension portion 14 can well protect the pin 30, play a role of lateral limit, limit the shaking of the pin 30, prevent deformation caused by shaking or disconnection of the pin 30 and the circuit board 20 due to shaking, and is conducive to protecting the connection between the pin 30 and the circuit board 20. In addition, the first extension portion 14 can guide the pin 30 during the installation of the electronic brake assembly, preventing the pin 30 from being unable to accurately connect with the circuit board 20, thereby improving production efficiency.

[0044] In one embodiment, the distance between the end of the first extension portion 14 away from the substrate 13 and the first surface 131 is d1, and d1≥2 mm.

[0045] d1 can be 2mm, 4mm, 6mm, 8mm, etc. without limitation.

[0046] When d1 is less than 2 mm, the distance between the end of the first extension portion 14 away from the substrate 13 and the first surface 131 is too small, the first extension portion 14 has a general guiding and supporting effect on the pin 30, and the pin 30 is prone to shake, thereby causing the solder joint between the pin 30 and the circuit board 20 to fall off.

[0047] When d1≥2mm, the distance between the end of the first extension portion 14 away from the substrate 13 and the first surface 131 is large, so that the first extension portion 14 has a good supporting and limiting effect on the pin 30, which can reduce the shaking of the pin 30 and is beneficial to protecting the stable connection between the pin 30 and the circuit board 20.

[0048] refer to Figure 1 In one embodiment, the pin mounting structure 10 further includes a second extension portion 15, the second extension portion 15 is connected to the substrate 13 and protrudes from the second surface 132, and the guide hole 12 passes through the second extension portion 15. A first guide surface 151 is connected between the end surface of the second extension portion 15 away from the substrate 13 and the inner wall surface of the guide hole 12, and the first guide surface 151 is inclined relative to the inner wall surface of the guide hole 12.

[0049] The second extension portion 15 is provided with a first guide surface 151 , which plays a guiding role when the pin 30 and the second extension portion 15 are installed, so as to facilitate the installation of the electronic brake assembly.

[0050] The second extension portion 15 is made of a material with relatively high structural strength, and specifically may be a metal material, high-strength plastic, ceramic, silicon material, etc.

[0051] The guide hole 12 sequentially passes through the second extension part 15, the base plate 13 and the first extension part 14. The second extension part 15 can further strengthen the protection of the pin 30, play a role in lateral limiting, limit the shaking of the pin 30, prevent deformation caused by shaking or disconnection of the pin 30 and the circuit board 20 due to shaking, which is conducive to protecting the connection between the pin 30 and the circuit board 20. In addition, the second extension part 15 can guide the pin 30 during the installation of the electronic brake assembly to prevent the pin 30 from being unable to accurately connect with the circuit board 20, thereby improving production efficiency.

[0052] In one implementation, the distance between the end of the second extension portion 15 away from the substrate 13 and the second surface 132 is d2, satisfying: d2 ≥ 2 mm.

[0053] d2 can be 2mm, 4mm, 6mm, 8mm, etc. without limitation.

[0054] When d2 is less than 2 mm, the distance between the end of the second extension portion 15 away from the substrate 13 and the second surface 132 is too small, and the second extension portion 15 has little effect in guiding and supporting the pin 30. The pin 30 is easy to shake, thereby causing the soldering at the connection between the pin 30 and the circuit board 20 to fall off.

[0055] When d2≥2mm, the distance between the end of the second extension portion 15 away from the substrate 13 and the second surface 132 is large, so that the second extension portion 15 has a good supporting and limiting effect on the pin 30, which can reduce the shaking of the pin 30 and is beneficial to protecting the stable connection between the pin 30 and the circuit board 20. The increased height of the second extension portion 15 can facilitate the pin 30 to pass through the guide hole 12 for easy installation.

[0056] In one embodiment, the wall thickness of the second extension portion 15 is greater than the wall thickness of the first extension portion 14 .

[0057] The second extension portion 15 is provided with a first guide surface 151 which is in close contact with the second guide surface 321 of the pin 30. The first guide surface 151 of the second extension portion 15 is in close contact with the second guide surface 321 of the second contact portion 32, so that the second extension portion 15 can play a supporting and fixing role for the pin 30 while playing a guiding role. Therefore, the wall thickness of the second extension portion 15 should be greater than the wall thickness of the first extension portion 14, so that the supporting effect of the second extension portion 15 on the pin 30 is enhanced, which is beneficial to the structural stability of the electronic brake assembly.

[0058] refer to Figure 3 The utility model provides a pin 30, which is used to be partially received in the guide hole 12 of the pin mounting structure 10. The pin 30 includes a first contact portion 31 and a second contact portion 32, one end of the first contact portion 31 is connected to the circuit board 20, and the other end is connected to the first end surface of the second contact portion 32, the first contact portion 31 and the second contact portion 32 extend in the same direction, the radial dimension of the second contact portion 32 is larger than the radial dimension of the first contact portion 31, and the radial dimension of the second contact portion 32 is larger than the radial dimension of the guide hole 12, a second guide surface 321 is connected between the outer peripheral surface of the second contact portion 32 and the first end surface, the second guide surface 321 is inclined relative to the outer peripheral surface of the second contact portion 32, and the first guide surface 151 is in close contact with the second guide surface 321.

[0059] One end of the second contact portion 32 is connected to the first contact portion 31 , and the other end of the second contact portion 32 is connected to the motor 40 .

[0060] The radial dimension of the second contact portion 32 is larger than the radial dimension of the guide hole 12, so that the second contact portion 32 is not easily separated from the second extension portion 15 after the electronic brake assembly is installed, and the second extension portion 15 always keeps close contact with the second contact portion 32, thereby improving the structural stability of the electronic brake assembly; the second guide surface 321 can be formed by rounding, chamfering, etc., and must correspond to the first guide surface 151. The first guide surface 151 and the second guide surface 321 have the same slope, so that the first guide surface 151 can be in close contact with the second guide surface 321.

[0061] The material of the pin 30 can be copper, and the processing method can be stamping processing. The process is simple. Copper has better conductivity and lower cost. Under the premise of ensuring low cost and good conductivity, copper has higher hardness. Higher hardness can prevent the pin 30 from deforming during installation.

[0062] The pin 30 may be in the shape of a long strip.

[0063] The number of the pins 30 may be multiple or one.

[0064] The connection method between the pin 30 and the circuit board 20 can be bonding, clamping, screwing, welding, etc. using conductive adhesive. When the connection method is welding, the connection between the pin 30 and the circuit board 20 is more secure.

[0065] When the connection between the pin 30 and the circuit board 20 is by welding, the surface of the pin 30 also includes a tin-plated layer to facilitate welding.

[0066] The electronic brake assembly of the utility model eliminates the fisheye pins and the adapter copper busbars existing in the prior art, thereby eliminating the need for welding connection between the fisheye pins and the adapter copper busbars, and making it unnecessary to set up equipment specifically for welding the fisheye pins and the adapter copper busbars on the assembly line. This saves equipment costs while simplifying the assembly process and improving production efficiency, so that the pin 30 is directly welded to the circuit board 20, thereby greatly simplifying the connection method between the pin 30 and the circuit board 20.

[0067] Furthermore, the pin 30 of the present invention is directly connected to the circuit board 20 without a switching structure in the middle, so that the connection of the electronic brake assembly is more secure.

[0068] Since the structure of the electronic brake assembly is simplified and only one connection is welded, the difficulty of disassembly during repair is greatly reduced, and the risk of damage to parts during disassembly is also reduced.

[0069] In one embodiment, the pin 30 is also provided with a shell 33, which wraps part of the second contact portion 32. The shell 33 is made of a non-conductive material, which may be an inorganic insulating material, an organic insulating material, a mixed insulating material, etc., and may be rubber, plastic, glass, etc., without limitation.

[0070] The insulating housing 33 is provided to protect the second contact portion 32 and prevent the second contact portion 32 from directly contacting the conductive component.

[0071] refer to Figure 1 In one embodiment, the gap between the first contact portion 31 and the inner wall of the guide hole 12 is d3, satisfying: d3≤1mm.

[0072] d3 can be 0.4mm, 0.6mm, 0.8mm, 1mm, etc. without limitation.

[0073] When d3>1mm, the gap between the first contact portion 31 and the inner wall of the guide hole 12 is too large, the width of the first contact portion 31 and the inner diameter of the guide hole 12 are greatly different, and the first extension portion 14 and the second extension portion 15 have poor limiting effect on the pin 30.

[0074] When d3≤1mm, the gap between the first contact portion 31 and the inner wall of the guide hole 12 is small, the difference between the width dimension of the first contact portion 31 and the inner diameter dimension of the guide hole 12 is small, and the first extension portion 14 and the second extension portion 15 have a good limiting effect on the pin 30, which can prevent the pin 30 from shaking during the working process and causing the connection with the circuit board 20 to fall off.

[0075] refer to Figure 2 and Figure 3 In one embodiment, the pin 30 further includes a pointed cone 34 , which is disposed at one end of the first contact portion 31 close to the circuit board 20 . The circuit board 20 is provided with a receiving hole 21 , and the pointed cone 34 is correspondingly received in the receiving hole 21 .

[0076] There are multiple pointed cones 34 , and the number of receiving holes 21 is consistent with the number of pointed cones 34 . The multiple pointed cones 34 are received in the receiving holes 21 in a one-to-one correspondence.

[0077] The pointed cone 34 may be a pointed pin, and a plurality of pointed cones 34 arranged at intervals form a sawtooth shape.

[0078] After the pointed cone 34 is inserted into the receiving hole 21 , it is fixed to the circuit board 20 by welding.

[0079] The processing difficulty of opening the receiving hole 21 on the circuit board 20 is lower than the production cost of adding a transfer copper bus, a socket, etc. in the prior art, and the processing difficulty is also lower. The receiving hole 21 and the circuit board 20 are an integrated structure, and the pointed cone 34 on the pin 30 is inserted into the receiving hole 21 without the need for assembly. This structure is more secure and reliable than the plug-in connection method of the prior art, and the assembly method is also simpler.

[0080] In one embodiment, the electronic brake assembly further includes a protective shell, which is disposed on the surface of the circuit board 20 and is used to protect the portion of the cone 34 protruding from the circuit board 20 .

[0081] The protective shell is made of a material with high structural strength, and specifically may be a metal material, high-strength plastic, ceramic, silicon material, etc.

[0082] The cross-section of the protective shell can be rectangular, circular, etc. without limitation.

[0083] The protective cover can protect the portion of the pin 30 protruding from the circuit board 20 to avoid collision and increase the service life of the component.

[0084] The installation process of the electronic brake device of the present invention is as follows: align the positioning hole on the circuit board 20 with the positioning column and install and fix it; the pin 30 passes through the guide hole 12 of the pin installation structure 10, and the tip 34 of the pin 30 passes through the receiving hole 21 on the circuit board 20 and is welded to the circuit board 20.

[0085] The electronic brake assembly also includes transmission, brake and brake warning device. The transmission is a series of components connecting the brake pedal and the brake, including the brake pedal, brake master cylinder, wheel cylinder and connecting pipes. The function of these components is to transmit the braking energy to the brake to generate braking force. The design and performance of the transmission have an important impact on the effectiveness and response of the braking system. The brake can be a drum brake or a disc brake. The brake warning device uses electrical or mechanical signals caused by brake wear to alert the driver.

[0086] The electronic brake assembly of the utility model eliminates the fisheye pins and the adapter copper busbars existing in the prior art, thereby eliminating the need for welding connection between the fisheye pins and the adapter copper busbars, and making it unnecessary to set up equipment specifically for welding the fisheye pins and the adapter copper busbars on the assembly line. This saves equipment costs while simplifying the assembly process and improving production efficiency, so that the pin 30 is directly welded to the circuit board 20, thereby greatly simplifying the connection method between the pin 30 and the circuit board 20.

[0087] The utility model also provides a vehicle, comprising a vehicle body and an electronic braking device as described in any one of the above embodiments, wherein the electronic braking device is arranged in the vehicle body.

[0088] The body includes windows, doors, cockpit, passenger compartment, engine compartment and luggage compartment, etc. The body shape includes box type, fish type, boat type, streamlined type and wedge type, and the structural form includes single compartment, two compartment and three compartment.

[0089] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0090] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A pin mounting structure, characterized in that: The pin mounting structure is used for an electronic brake assembly and is provided with a penetrating guide hole for accommodating a pin; a first guide surface is provided at one end of the guide hole and is inclined relative to an inner wall surface of the guide hole.

2. The pin mounting structure according to claim 1, characterized in that: The pin mounting structure includes a substrate and a first extension portion, the substrate has a first surface and a second surface opposite to each other, the electronic brake assembly also includes a drive module, the second surface faces the drive module, the first extension portion is connected to the substrate and protrudes from the first surface, and the guide hole passes through the substrate and the first extension portion.

3. The pin mounting structure according to claim 2, characterized in that: A distance between one end of the first extension portion away from the substrate and the first surface is d1, and the following condition is satisfied: d1≥2 mm.

4. The pin mounting structure according to claim 2, characterized in that: The substrate further includes a second extension portion, which is connected to the substrate and protrudes from the second surface. The first guide surface is arranged at an end of the second extension portion away from the substrate. The guide hole passes through the second extension portion.

5. The pin mounting structure according to claim 4, characterized in that: A distance between one end of the second extension portion away from the substrate and the second surface is d2, satisfying: d2≥2 mm.

6. The pin mounting structure according to claim 4, characterized in that: The wall thickness of the second extension portion is greater than the wall thickness of the first extension portion.

7. A pin, characterized in that: The pin is used to be partially received in the guide hole of the pin mounting structure according to any one of claims 1 to 6, and the pin includes a second guide surface, and the first guide surface is in close contact with the second guide surface.

8. The pin according to claim 7, characterized in that: The pin includes a first contact portion and a second contact portion, one end of the first contact portion is used to connect to the circuit board, and the other end is connected to the first end surface of the second contact portion, the first contact portion and the second contact portion extend in the same direction, the radial dimension of the second contact portion is larger than the radial dimension of the first contact portion, and the radial dimension of the second contact portion is larger than the radial dimension of the guide hole, the second guide surface is connected between the outer peripheral surface of the second contact portion and the first end surface, and the second guide surface is inclined relative to the outer peripheral surface of the second contact portion.

9. The pin according to claim 8, characterized in that: A gap between the first contact portion and the inner wall of the guide hole is d3, satisfying: d3≤1 mm.

10. The pin according to claim 8, characterized in that: The pin further comprises a pointed cone, which is arranged at an end of the first contact portion away from the substrate and is used for being inserted into the receiving hole of the circuit board.

11. An electronic brake assembly, characterized in that: include: An electric control module, comprising a circuit board and the pin mounting structure according to any one of claims 1 to 6, wherein the electric control module is provided with a receiving cavity, the guide hole is connected to the receiving cavity, and the circuit board is received in the receiving cavity; A driving module, comprising a motor and a pin as described in any one of claims 7 to 10, wherein the first guide surface is arranged at one end of the guide hole close to the driving module, the pin is at least partially accommodated in the guide hole, and one end is connected to the motor and the other end is connected to the circuit board.

12. A vehicle, characterized in that: It comprises a vehicle body and the electronic brake assembly as claimed in claim 11, wherein the electronic brake assembly is arranged in the vehicle body.

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