Multi-layer circuit board assembling structure of controller

Abstract

The utility model discloses a controller multilayer circuit board assembling structure comprising a bottom plate, the top of the bottom plate is provided with an installation housing, a first circuit board and a second circuit board are placed in the installation housing, and the first circuit board is located at the bottom of the second circuit board. A fixing assembly for fixing the first circuit board, the second circuit board and the mounting shell is arranged at the top of the bottom plate, the limiting piece is arranged at the top of the first circuit board, and the bottom of the outer wall of the fixing screw is in threaded penetrating and sleeving connection with the bottom plate to fix the mounting shell, the second circuit board and the first circuit board. The base plate, the mounting shell, the first circuit board, the second circuit board and the fixing assembly are used in a matched mode, the fixing assembly comprises the limiting piece, the fixing screw and the limiting sleeve, under the action of the fixing screw, the first circuit board and the second circuit board can be fixed, the mounting shell can be fixed, and therefore the fixing screw can be detached, and use is convenient. Therefore, the device can be directly disassembled or installed.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a controller multi-layer circuit board assembly structure. Background Art

[0002] The controller is an important component of electric vehicles. The controller is used to control the power-on movement state of the electric vehicle. The controller is usually composed of a shell and a resistor board, and different numbers of circuit boards will be assembled inside the controller shell according to the performance required by the electric vehicle.

[0003] When assembling more than two circuit boards inside the controller housing, it is necessary to use screws to fix the circuit boards in sequence so that multiple circuit boards are stacked up and fixed, thereby reducing the volume of the controller housing and allowing adjacent circuit boards to have a certain gap, thereby avoiding relative scratches between adjacent circuit boards when the controller is in use, thereby ensuring the stability of multiple circuit boards when used inside the controller housing.

[0004] However, using screws to fix and install the circuit boards in sequence not only reduces the efficiency of controller assembly, but also when multiple circuit boards are stacked up and fixed with bolts, it is necessary to open holes in the lower circuit board corresponding to the holes for installing the bolts on the upper circuit board, thereby increasing the circuit board processing cost. It is not convenient to directly use one set of bolts to assemble multiple circuit boards and fix the controller housing at the same time. Utility Model Content

[0005] The purpose of the utility model is to provide a controller multi-layer circuit board assembly structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a controller multi-layer circuit board assembly structure, comprising a bottom plate, a mounting housing is arranged on the top of the bottom plate;

[0007] The first circuit board and the second circuit board are stacked and placed inside the mounting shell, and the first circuit board is located at the bottom of the second circuit board. The top of the bottom plate is provided with a fixing component for fixing the first circuit board, the second circuit board and the mounting shell, and the fixing component includes:

[0008] A limiting member, wherein the limiting member is arranged on the top of the first circuit board;

[0009] A fixing screw, wherein the bottom of the outer wall of the fixing screw is inserted and sleeved with the bottom plate thread, fixes the mounting housing, the second circuit board and the first circuit board.

[0010] Preferably, the outer wall of the fixing screw is slidably sleeved with a limiting sleeve, and the top of the limiting member, the top of the mounting shell, the top of the second circuit board and the top of the first circuit board are all provided with through holes matching the limiting sleeve.

[0011] Preferably, a fixing gasket is fixedly connected to the bottom of the limiting sleeve, and the fixing gasket is located between the first circuit board and the bottom plate. The first circuit board has a first heat dissipation chamber between the fixing gasket and the bottom plate.

[0012] Preferably, the outer wall of the limiting sleeve is slidably connected with a first limiting ring, the first limiting ring is located between the limiting piece and the second circuit board, and the outer wall of the limiting sleeve is slidably connected with a second limiting ring, the second limiting ring is located between the second circuit board and the mounting shell.

[0013] Preferably, the bottom and top of the second circuit board form a second heat dissipation chamber and a third heat dissipation chamber respectively through a first limiting ring and a second limiting ring, and the top sliding sleeve of the outer wall of the fixing screw is provided with an anti-slip pad, and the bottom of the anti-slip pad fits with the top of the limiting sleeve and the top of the mounting shell.

[0014] Preferably, an installation sleeve is fixedly embedded in the outer wall of the limiting sleeve, and a limiting ball is slidably clamped inside the installation sleeve. A groove matching the limiting ball is formed on the inner wall of the first limiting ring, and an elastic part acting on the limiting ball is fixedly clamped on the side of the inner cavity of the installation sleeve facing away from the inner wall of the first limiting ring.

[0015] Preferably, a connecting pin is fixedly connected to the top of the second circuit board, a connector shell corresponding to the connecting pin is fixedly connected to the top of the mounting shell, and a connecting hole matching the connecting pin is formed at the bottom of the inner wall of the connector shell.

[0016] Technical effects and advantages of the utility model:

[0017] The utility model utilizes the coordinated use of a base plate, a mounting shell, a first circuit board, a second circuit board and a fixing component. The fixing component includes a limit piece, a fixing screw and a limit sleeve. Under the action of the fixing screw, not only the first circuit board and the second circuit board can be fixed, but also the mounting shell can be fixed. Therefore, by removing the fixing screw, it can be directly disassembled or installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the front part of the utility model.

[0020] Figure 3For this utility model Figure 2 Schematic diagram of the method structure at A.

[0021] In the figure: 1. base plate; 2. mounting shell; 3. first circuit board; 4. second circuit board; 5. fixing assembly; 51. limit member; 52. fixing screw; 53. limit sleeve; 54. fixing gasket; 55. first limit ring; 56. second limit ring; 57. anti-slip pad; 58. mounting sleeve; 59. limit ball; 510. elastic member; 6. connecting pin; 7. connector housing. DETAILED DESCRIPTION

[0022] 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 in 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.

[0023] The utility model provides Figure 1-3 A controller multi-layer circuit board assembly structure shown includes a base plate 1, and a mounting shell 2 is arranged on the top of the base plate 1. The assembly of the base plate 1 and the mounting shell 2 can protect the first circuit board 3 and the second circuit board 4. The top of the second circuit board 4 is fixedly connected with a connecting pin 6, and the top of the mounting shell 2 is fixedly connected with a connector shell 7 corresponding to the connecting pin 6. The bottom of the inner wall of the connector shell 7 is provided with a connecting hole matching the connecting pin 6, so that the external terminal can be inserted into the interior of the connector shell 7 and electrically connected to the connecting pin 6.

[0024] In particular, the interior of the mounting shell 2 is stacked with the first circuit board 3 and the second circuit board 4, and the first circuit board 3 is located at the bottom of the second circuit board 4. A fixing component 5 for fixing the first circuit board 3, the second circuit board 4 and the mounting shell 2 is provided on the top of the base plate 1. The fixing component 5 includes a limit member 51 and a fixing screw 52, ​​and the number of the fixing screws 52 is multiple. The limit member 51 is provided on the top of the first circuit board 3, and the bottom of the outer wall of the fixing screw 52 is threadedly inserted and sleeved with the base plate 1 to fix the mounting shell 2, the second circuit board 4 and the first circuit board 3. When the fixing screw 52 passes through the mounting shell 2, the second circuit board 4 and the first circuit board 3 and is fixed to the base plate 1, the mounting shell 2, the second circuit board 4 and the first circuit board 3 can be fixed synchronously, and they can be directly disassembled by removing the fixing screw 52.

[0025] Preferably, the outer wall of the fixing screw 52 is slidably sleeved with a limiting sleeve 53, and the top of the limiting member 51, the top of the mounting shell 2, the top of the second circuit board 4 and the top of the first circuit board 3 are all provided with through holes matching the limiting sleeve 53, and the holes on the limiting member 51 and the first circuit board 3 are slightly larger than the holes on the second circuit board 4 and the mounting shell 2, so as to facilitate the subsequent limiting sleeve 53 to drive the mounting sleeve 58 to pass through the first circuit board 3 and the limiting member 51.

[0026] Furthermore, a fixing gasket 54 is fixedly connected to the bottom of the limiting sleeve 53, and the fixing gasket 54 is located between the first circuit board 3 and the bottom plate 1. The first circuit board 3 has a first heat dissipation chamber between the bottom plate 1 through the fixing gasket 54. The first heat dissipation chamber, the second heat dissipation chamber and the third heat dissipation chamber can not only ensure the heat dissipation efficiency of the first circuit board 3 and the second circuit board 4, but the limiting sleeve 53, the fixing gasket 54, the first limiting ring 55 and the second limiting ring 56 are all made of insulating materials, which can also prevent the first circuit board 3 and the second circuit board 4 from contacting the bottom plate 1 and the mounting shell 2, resulting in a short circuit between the first circuit board 3 and the second circuit board 4 and external components. The outer wall of the limiting sleeve 53 is slidably clamped with the first limiting ring 55, and the first limiting ring 55 is located between the limiting member 51 and the second circuit board 4 The outer wall of the limiting sleeve 53 is slidably sleeved with a second limiting ring 56, and the second limiting ring 56 is located between the second circuit board 4 and the mounting shell 2. The bottom and top of the second circuit board 4 form a second heat dissipation chamber and a third heat dissipation chamber through the first limiting ring 55 and the second limiting ring 56 respectively. The top of the outer wall of the fixing screw 52 is slidably sleeved with an anti-skid pad 57, and the bottom of the anti-skid pad 57 fits with the top of the limiting sleeve 53 and the top of the mounting shell 2. When the fixing screw 52 is tightened, the bottom of the anti-skid pad 57 fits with the top of the limiting sleeve 53 and the top of the mounting shell 2. The bottom of the anti-skid pad 57 can squeeze and limit the mounting shell 2, and the bottom of the anti-skid pad 57 fits with the top of the limiting sleeve 53, which can also avoid pressure loss on the top of the mounting shell 2 when the fixing screw 52 is tightened.

[0027] Furthermore, a mounting sleeve 58 is fixedly embedded in the outer wall of the limiting sleeve 53, and a limiting ball 59 is slidably engaged inside the mounting sleeve 58. A groove matching the limiting ball 59 is provided on the inner wall of the first limiting ring 55. An elastic member 510 acting on the limiting ball 59 is fixedly engaged on the side of the inner cavity of the mounting sleeve 58 away from the inner wall of the first limiting ring 55. The elastic member 510 can give the limiting ball 59 an elastic squeezing force, thereby keeping the limiting ball 59 and the first limiting ring 55 in a relatively stable engaged state. When the second circuit board 4 is assembled, the limiting sleeve 53 and the first circuit board 3 are kept in a stably connected state, thereby improving the convenience of assembling the first circuit board 3 and the second circuit board 4.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A controller multi-layer circuit board assembly structure, comprising a base plate (1), wherein a mounting housing (2) is arranged on the top of the base plate (1); It is characterized in that A first circuit board (3) and a second circuit board (4) are stacked inside the mounting shell (2), and the first circuit board (3) is located at the bottom of the second circuit board (4). A fixing component (5) for fixing the first circuit board (3), the second circuit board (4) and the mounting shell (2) is provided on the top of the bottom plate (1), and the fixing component (5) comprises: A limiting member (51), wherein the limiting member (51) is arranged on the top of the first circuit board (3); A fixing screw (52), wherein the bottom of the outer wall of the fixing screw (52) is threadably inserted and sleeved with the bottom plate (1), thereby fixing the mounting housing (2), the second circuit board (4) and the first circuit board (3).

2. A controller multi-layer circuit board assembly structure according to claim 1, characterized in that: The outer wall of the fixing screw (52) is slidably sleeved with a limiting sleeve (53), and the top of the limiting member (51), the top of the mounting housing (2), the top of the second circuit board (4) and the top of the first circuit board (3) are all provided with through holes matching the limiting sleeve (53).

3. A controller multi-layer circuit board assembly structure according to claim 2, characterized in that: A fixing gasket (54) is fixedly connected to the bottom of the limiting sleeve (53); the fixing gasket (54) is located between the first circuit board (3) and the bottom plate (1); and a first heat dissipation chamber is provided between the first circuit board (3) and the bottom plate (1) via the fixing gasket (54).

4. A controller multi-layer circuit board assembly structure according to claim 2, characterized in that: The outer wall of the limiting sleeve (53) is slidably connected to a first limiting ring (55), the first limiting ring (55) is located between the limiting member (51) and the second circuit board (4), and the outer wall of the limiting sleeve (53) is slidably connected to a second limiting ring (56), the second limiting ring (56) is located between the second circuit board (4) and the mounting housing (2).

5. A controller multi-layer circuit board assembly structure according to claim 4, characterized in that: The bottom and top of the second circuit board (4) respectively form a second heat dissipation chamber and a third heat dissipation chamber through a first limiting ring (55) and a second limiting ring (56); the top of the outer wall of the fixing screw (52) is slidably sleeved with an anti-skid pad (57); the bottom of the anti-skid pad (57) fits with the top of the limiting sleeve (53) and the top of the mounting shell (2).

6. A controller multi-layer circuit board assembly structure according to claim 4, characterized in that: The outer wall of the limiting sleeve (53) is fixedly embedded with a mounting sleeve (58), the interior of the mounting sleeve (58) is slidably engaged with a limiting ball (59), the inner wall of the first limiting ring (55) is provided with a groove matching the limiting ball (59), and the side of the inner cavity of the mounting sleeve (58) facing away from the inner wall of the first limiting ring (55) is fixedly engaged with an elastic member (510) acting on the limiting ball (59).

7. The controller multi-layer circuit board assembly structure according to claim 1, characterized in that: A connecting pin (6) is fixedly connected to the top of the second circuit board (4), a connector housing (7) corresponding to the connecting pin (6) is fixedly connected to the top of the mounting housing (2), and a connecting hole matching the connecting pin (6) is provided at the bottom of the inner wall of the connector housing (7).

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