CN220123134U

CN220123134U - Circuit board connection assembly, electronic controller and device comprising electronic controller

Info

Publication number: CN220123134U
Application number: CN202321724779.2U
Authority: CN
Inventors: 李敏
Original assignee: Beijing Co Wheels Technology Co Ltd
Current assignee: Beijing Co Wheels Technology Co Ltd
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2023-12-01
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a circuit board connection assembly, an electronic controller and a device comprising the electronic controller. The circuit board connecting assembly comprises a plurality of circuit boards which are arranged at intervals, wherein one of the adjacent circuit boards is provided with a first through hole, and the other circuit board is provided with a second through hole; the connector comprises a first installation end and a second installation end which are oppositely arranged, wherein the first installation end is provided with a first protruding part which is welded in the first through hole, the second installation end is provided with a second protruding part which is welded in the second through hole, or the second installation end is provided with an installation hole which is arranged opposite to the second through hole and is connected with the installation piece. The electronic controller includes a circuit board connection assembly. The apparatus comprising an electronic controller comprises an electronic controller. The circuit board connecting assembly, the electronic controller and the device comprising the electronic controller provided by the utility model simplify the assembly scheme of the circuit board, shorten the assembly time, reduce the production cost and reduce the influence on peripheral components.

Description

Circuit board connection assembly, electronic controller and device comprising electronic controller

Technical Field

The utility model relates to the technical field of vehicle electronic controllers, in particular to a circuit board connecting assembly, an electronic controller and a device comprising the electronic controller.

Background

With the development of vehicle technology, the functions of the controller are more and more integrated and enriched, and the components such as chips are more and more increased, so that the size of the circuit board is larger and larger. In controller designs, multiple circuit board stack designs are becoming more common.

At present, a scheme of connecting two adjacent circuit boards by copper studs and screws is adopted. In the process of realizing the utility model, the inventor finds that in the connection scheme, two circuit boards are connected with studs or screws, the number of the screws required to be used is relatively large, the assembly working hours are relatively long, and the assembly process is relatively complex. Meanwhile, special assembly jigs are required to be designed for production and assembly, so that the production cost is increased. In addition, through multiunit screw fixed connection, the assembly in-process is very likely because of the operation is improper, exerts the stress to the circuit board, produces harmful effect to peripheral components and parts.

Disclosure of Invention

The utility model aims to provide a circuit board connecting assembly, an electronic controller and a device comprising the electronic controller, so that the assembly scheme of the circuit board is simplified, the assembly time is shortened, the production cost is reduced, and the influence on peripheral components is reduced.

The technical scheme of the utility model provides a circuit board connecting assembly, which comprises: a plurality of circuit boards which are arranged at intervals, wherein one of the adjacent circuit boards is provided with a first through hole, and the other circuit board is provided with a second through hole; the connecting body comprises a first installation end and a second installation end which are oppositely arranged, wherein the first installation end is provided with a first protruding part used for being welded in the first through hole, the second installation end is provided with a second protruding part used for being welded in the second through hole, or the second installation end is provided with an installation hole, and the installation hole is used for being oppositely arranged with the second through hole and connected through an installation piece.

Optionally, the first through holes and the second through holes are at least three and are arranged in a one-to-one correspondence manner, and any one group of corresponding first through holes and second through holes are connected through one connecting body.

Optionally, the end face of the first mounting end is provided with a tin plating layer.

Optionally, the top of the first protruding portion and the second protruding portion are both provided with a chamfer.

Optionally, a gap of 0.10-0.15mm is reserved between the outer side wall of the first protruding portion and the inner wall of the first through hole.

Optionally, the connector is made of metal, and the inner walls and the opening edges of the first through hole and the second through hole are covered with conductive layers.

Optionally, the conductive layer comprises a copper layer.

Optionally, the edge of the mounting hole is inclined towards the outside to define a guide opening with an inner diameter gradually increasing in a direction approaching the orifice of the mounting hole.

The electronic controller provided by the technical scheme of the utility model comprises the circuit board connecting assembly.

The device comprising the electronic controller provided by the technical scheme of the utility model comprises the electronic controller.

By adopting the technical scheme, the method has the following beneficial effects:

according to the circuit board connecting assembly, the electronic controller and the device comprising the electronic controller, when adjacent circuit boards are connected, at least one circuit board is connected with the connecting body by adopting a welding process, and the other circuit board is fixedly connected with the connecting body by welding or is connected with the connecting body by adopting a detachable mode such as interference fit, threaded connection and the like according to whether disassembly is required. The circuit board connection mode provided by the embodiment of the utility model is beneficial to simplifying the assembly scheme of the circuit board, shortening the assembly time without designing a special assembly jig, reducing the production cost, reducing the installation stress and reducing the influence on peripheral components.

Drawings

FIG. 1 is a schematic diagram of a circuit board connection assembly according to an embodiment of the utility model;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic view of the structure of the connector in the embodiment shown in FIG. 1;

FIG. 4 is a cross-sectional view of A-A of FIG. 3;

FIG. 5 is an exploded view of a circuit board connection assembly according to one embodiment of the present utility model;

fig. 6 is a schematic structural diagram of the connector in the embodiment shown in fig. 5.

Reference numerals and signs

1-a first circuit board, 10-a first through hole;

2-a second circuit board, 20-a second through hole;

3-connector, 30-first mounting end, 31-second mounting end, 32-first boss, 33-second boss, 34-mounting hole, 35-guide port;

4-mount.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

It is to be readily understood that, according to the technical solutions of the present utility model, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.

The utility model provides a circuit board connection assembly, comprising: a plurality of circuit boards arranged at intervals, and a connector 3.

The plurality of circuit boards arranged at intervals comprise at least two adjacent circuit boards, wherein one of the adjacent circuit boards is provided with a first through hole 10, and the other one is provided with a second through hole 20, as shown in fig. 1, 2 and 5. Next, taking the example that two adjacent circuit boards are the adjacent first circuit board 1 and the adjacent second circuit board 2 as an example, the first circuit board 1 is provided with a first through hole 10, and the second circuit board 2 is provided with a second through hole 20. The connector 3 includes a first mounting end 30 and a second mounting end 31 that are oppositely disposed, the first mounting end 30 is provided with a first protruding portion 32 that is used for being welded in the first through hole 10, the second mounting end 31 is provided with a second protruding portion 33 that is used for being welded in the second through hole 20, or the second mounting end 31 is provided with a mounting hole 34, and the mounting hole 34 is used for being connected with the second through hole 20 through the mounting member 4 after being aligned.

The first circuit board 1 and the second circuit board 2 in the embodiment of the present utility model may be assembled printed circuit boards (Printed Circuit Board Assembly, PCBA), and the connector 3, the first boss 32, and the second boss 33 may each be cylindrical.

In the embodiment of the present utility model, the heights of the first protruding portion 32 and the second protruding portion 33 are in the range of 1.0 to 1.5mm, and may be specifically set correspondingly according to the thicknesses of the first circuit board 1 and the second circuit board 2. For example, when the thickness of the first circuit board 1 is 1.2mm, the height of the first protruding portion 32 is 1.0mm so that the first protruding portion 32 is stably disposed inside the first through hole 10; when the second circuit board 2 is 1.6mm, the height of the second boss 33 is 1.5mm so that the second boss 33 can be stably disposed in the second through hole 20.

In the embodiment of the present utility model, the first circuit board 1 is soldered and mounted with the first bump 32 of the connector 3 through the first through hole 10 by SMT (Surface Mounting Technology, surface mount technology) process. When the first circuit board 1 and the second circuit board 2 do not need to be disassembled, the second circuit board 2 and the second protruding part 33 on the connecting body 3 are welded and installed through the second through hole 20 in an SMT process. During assembly, the bottom surfaces of the first circuit board 1 and the second circuit board 2 are respectively subjected to SMT technology, and required devices are attached. The first circuit board 1, the connector 3 and the second circuit board 2 are then directly soldered together by SMT process, avoiding the use of screw fastening entirely. Through the SMT technology, the connection and fixation retaining force between the first circuit board 1 and the second circuit board 2 is 300-400N, the reliability is high, the vibration and impact requirements of the whole vehicle are met, and the use condition requirements of the whole vehicle are met.

When the need of disassembly exists between the first circuit board 1 and the second circuit board 2, the inner wall of the second through hole 20 can be arranged smoothly, the second through hole 20 is aligned with the mounting hole 34 on the connecting body 3, and then the second through hole 20 and the mounting hole 34 are penetrated through the interference fit of the mounting piece 4 (cylindrical structure) so as to realize the detachable connection of the second circuit board 2 and the connecting body 3; or the inner wall of the second through hole 20 is provided with internal threads, and the mounting member 4 (screw, tapping screw, stud) is threaded into the second through hole 20 and the mounting hole 34 to realize detachable connection of the second circuit board 2 and the connector 3.

When the circuit board connecting assembly provided by the embodiment of the utility model is used for connecting adjacent circuit boards, at least one circuit board is connected with the connecting body 3 by adopting a welding process, and the other circuit board is fixedly connected with the connecting body 3 by welding or is connected with the connecting body 3 by adopting a detachable mode such as interference fit, threaded connection and the like according to whether disassembly is required. The circuit board connection mode provided by the embodiment of the utility model is beneficial to simplifying the assembly scheme of the circuit board, shortening the assembly time without designing a special assembly jig, reducing the production cost, reducing the installation stress and reducing the influence on peripheral components.

As an alternative embodiment, the first through holes 10 and the second through holes 20 are at least three and are arranged in a one-to-one correspondence, and any one group of corresponding first through holes 10 and second through holes 20 are connected by one connecting body 3. By providing at least three connection bodies 3 connected between at least three sets of the first through holes 10 and the second through holes 20 in one-to-one correspondence, the structural strength required for stable connection between the first circuit board 1 and the second circuit board 2 can be ensured. As shown in fig. 1, 2 and 5, the first circuit board 1 and the second circuit board 2 are rectangular boards, the number of the first through holes 10 and the second through holes 20 is four, the four through holes 10 and the second through holes 20 are respectively arranged at four corners of the rectangular boards, and the four connecting bodies 3 are connected between the four groups of the first through holes 10 and the second through holes 20 which are correspondingly arranged in a one-to-one correspondence manner, and the effect of stably connecting the four corners of the first circuit board 1 and the second circuit board 2 is achieved.

As an alternative embodiment, the end face of the first mounting end 30 is provided with a tin plating. As shown in fig. 3 and 5, the tin plating layer can increase the solderability between the end face of the first mounting end 30 and the first circuit board 1, increasing the soldering convenience.

As an alternative embodiment, the top of the first protrusion 32 and the second protrusion 33 are provided with chamfers. The chamfer in the embodiment of the present utility model may be a circular arc chamfer, a 30 ° chamfer, a 45 ° chamfer, a 60 ° chamfer, or the like, to play a role of guiding when the first boss 32 is inserted into the first through hole 10, or the second boss 33 is inserted into the second through hole 20, and to reduce scratches on the first circuit board 1 and the second circuit board 2.

As an alternative embodiment, a gap of 0.10-0.15mm is left between the outer side wall of the first protrusion 32 and the inner wall of the first through hole 10. The gap provided by the embodiment of the utility model is convenient for solder to enter between the first bulge 32 and the first through hole 10 in the welding process, and improves the welding effect.

As an alternative embodiment, the connector 3 is made of metal, and the inner walls and the opening edges of the first through hole 10 and the second through hole 20 are covered with a conductive layer. Both side opening edges of the first through hole 10 and the second through hole 20 are provided with conductive layers. The embodiment of the utility model can ensure that the circuits of the first circuit board 1 and the second circuit board 2 after connection are in a conducting state. As an alternative embodiment, the connecting body 3 may be a copper body with good electrical conductivity.

As an alternative embodiment, the conductive layer comprises a copper layer. The copper layer in the embodiment of the present utility model may be formed on the inner walls and the opening edges of the first through hole 10 and the second through hole 20 by electroplating. The copper layer has the advantage of stable and reliable conduction.

As an alternative embodiment, the edges of the mounting holes 34 are inclined outwardly to define guide openings 35 having an inner diameter gradually increasing in a direction approaching the orifice of the mounting holes 34. As shown in fig. 4, the guide opening 35 has a horn shape and can function as a guide when the mounting member 4 is inserted into the mounting hole 34.

The utility model also provides an electronic controller, which comprises the circuit board connecting assembly in any embodiment. The electronic controller in the embodiment of the utility model simplifies the assembly scheme of the circuit board, shortens the assembly time without designing a special assembly jig, reduces the production cost, reduces the installation stress and reduces the influence on peripheral components.

The utility model also provides a device comprising the electronic controller, which comprises the electronic controller in the embodiment. The electronic controller device provided by the embodiment of the utility model simplifies the assembly scheme of the circuit board, shortens the assembly time, does not need to design a special assembly jig, reduces the production cost, reduces the installation stress and reduces the influence on peripheral components.

The above technical schemes can be combined according to the need to achieve the best technical effect.

The foregoing is only illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.

Claims

1. A circuit board connection assembly, comprising:

a plurality of circuit boards which are arranged at intervals, wherein one of the adjacent circuit boards is provided with a first through hole, and the other circuit board is provided with a second through hole;

the connecting body comprises a first installation end and a second installation end which are oppositely arranged, wherein the first installation end is provided with a first protruding part used for being welded in the first through hole, the second installation end is provided with a second protruding part used for being welded in the second through hole, or the second installation end is provided with an installation hole, and the installation hole is used for being oppositely arranged with the second through hole and connected through an installation piece.

2. The circuit board connection assembly of claim 1, wherein the first through holes and the second through holes are at least three and are arranged in a one-to-one correspondence, and any one group of corresponding first through holes and second through holes are connected through one connector.

3. The circuit board connection assembly of claim 1, wherein an end face of the first mounting end is provided with a tin plating.

4. The circuit board connection assembly of claim 1, wherein the tops of the first and second bosses are each provided with a chamfer.

5. The circuit board connection assembly of claim 1, wherein a gap of 0.10-0.15mm is left between the outer side wall of the first boss and the inner wall of the first through hole.

6. The circuit board connection assembly of claim 1, wherein the connector is made of metal, and the inner walls and the opening edges of the first and second through holes are covered with a conductive layer.

7. The circuit board connection assembly of claim 6, wherein the conductive layer comprises a copper layer.

8. The circuit board connection assembly of any one of claims 1-7, wherein the edges of the mounting holes are inclined outwardly to define guide openings having progressively increasing inner diameters in a direction proximate the apertures of the mounting holes.

9. An electronic controller comprising the circuit board connection assembly of any one of claims 1-8.

10. An apparatus comprising an electronic controller, characterized by comprising the electronic controller of claim 9.