PCB mounting structure

Abstract

The utility model provides a vehicle PCB mounting structure which comprises a vehicle B column and a PCB, the PCB is fixed on the B column in a hot melting mode through a hot melting column on the B column, the size of a control system is controlled to be the size of the PCB, the size of a shell or the size of a top cover is not involved, and therefore the space requirement is met to the maximum extent, and the cost is reduced. The control system is arranged at the position required by the function as far as possible, and the installation requirement is met to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, and in particular to a vehicle PCB board mounting structure. Background Art

[0002] With the advancement of science and technology, technologies from many other fields have been applied to the improvement of automotive electronic technology. The intelligent photochromic glass control system is basically installed in the shell, and then fixed to the shell top cover through clips or plastic welding technology, and then the whole is fixed to the car by screws.

[0003] The existing structure requires a large installation space and cannot meet the control system's requirements for the signal receiving position, thereby reducing the function and accuracy of the control system. Utility Model Content

[0004] To overcome the above technical drawbacks, the present invention aims to provide a vehicle PCB mounting structure. Specifically, the mounting structure includes a vehicle B-pillar and a PCB board. The PCB board is provided with positioning holes, and the vehicle B-pillar is provided with fixing posts corresponding to the positioning holes of the PCB board. The PCB board is sleeved on the fixing posts through the positioning holes, thereby fixing the PCB board to the vehicle B-pillar.

[0005] Furthermore, the fixing post is a hot melt post, and after being sleeved in the positioning hole, the fixing post passes through the positioning hole and has a protruding portion. The protruding portion of the fixing post forms a circular rivet head after the hot melt is cooled. The circular rivet head has a cross groove in the middle, dividing it into four fan-shaped elastic structures. The diameter of the circular rivet head is larger than the diameter of the positioning hole of the PCB board.

[0006] Furthermore, the circular rivet head applies a compressive force to the PCB in a direction perpendicular to the surface of the vehicle's B-pillar, so that the PCB is clamped between the circular rivet head and the bottom of the fixing column, leaving no gap between the upper and lower contact surfaces of the circular rivet head and the PCB.

[0007] Furthermore, the elastic structure applies an elastic force to the PCB board from the inner side of the positioning hole in a direction parallel to the surface of the vehicle B-pillar, so that there is no radial gap between the elastic structure and the positioning hole;

[0008] Furthermore, the PCB board is rectangular, four positioning holes are set at the four corners of the PCB board, one positioning hole is set in the middle of the PCB board, and five fixing columns corresponding to the five positioning holes are set on the B-pillar of the vehicle.

[0009] The utility model fixes the PCB board to the B-pillar by heat-melting five heat-melting posts on the B-pillar. In this way, the size of the control system can be controlled to the size of the PCB without affecting the size of the housing or the top cover, thereby solving the space requirement to the greatest extent possible, allowing the control system to be arranged as far as possible in the position required by its function, and meeting the installation requirements to the greatest extent possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the installation of a PCB board fixed with screws in the prior art;

[0011] Figure 2 This is a schematic diagram of the installation of a PCB board fixed with a snap in the prior art;

[0012] Figure 3 This is an exploded view of the PCB board and the vehicle's B-pillar.

[0013] Figure 4-Figure 5 This is a schematic diagram of the PCB being assembled on the vehicle's B-pillar.

[0014] Figure 6 This is the three-view drawing of the PCB board hot-melt fixed to the vehicle's B-pillar.

[0015] Figure 7 This is a cross-sectional view of the hot-melt fixing column and the positioning hole after hot-melt fixing.

[0016] Figure numerals: 1-PCB board, 2-vehicle B-pillar, 11-positioning hole, 21-hot melt fixing column, 211-circular rivet head, 212-cross groove, 213-elastic structure, F1-pressing force, F2-elastic force. DETAILED DESCRIPTION

[0017] The advantages of the present disclosure are further described below with reference to the accompanying drawings and specific embodiments.

[0018] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0021] In the description of the present disclosure, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0023] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only to facilitate the description of the present disclosure and has no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0024] See also Figure 1 This is a schematic diagram of the installation of a PCB board fixed with screws in the prior art. Figure 1In the process, the PCB board is installed in the shell, and the top cover is covered on it to fix the PCB board. Screw mounting feet are set at the diagonal corners of the outer periphery of the shell, and then the entire shell is fixed to the vehicle's B-pillar by screws. The entire installation space, that is, the length, width and thickness are limited by the length, width and thickness of the shell and the top cover. The disadvantage is that the B-pillar installation space is large and it cannot flexibly meet the customer's design requirements.

[0025] See also Figure 2 This is a schematic diagram of the installation of a PCB board fixed with clips in the prior art. Figure 2 In the process, the PCB board is installed in the shell, and a top cover is covered on it to fix the PCB board. Then the entire shell is installed on the vehicle's B-pillar by snapping. The entire installation space, that is, the length, width and thickness are limited by the length, width and thickness of the shell and the top cover. The disadvantage is that the B-pillar installation space is required to be large, there is abnormal noise, and it cannot flexibly meet the customer's design requirements.

[0026] See also Figure 3 This is an exploded view of a PCB mounting structure according to one embodiment of the present disclosure, comprising a PCB 1 and a vehicle B-pillar 2. The PCB 1 is rectangular, measuring 112 mm in length, 43 mm in width, and 7.6 mm in thickness. Four positioning holes 11 are provided at each corner of the PCB 1, along with one positioning hole 11 in the center. Five positioning posts 21 are positioned on the B-pillar 2, corresponding to the positioning holes 11.

[0027] See also Figure 4 This is a schematic diagram of a PCB board being assembled on a vehicle B-pillar. The positioning hole 11 is sleeved on the fixing column 21 to fix the PCB board on the vehicle B-pillar.

[0028] See also Figure 5-Figure 6 This diagram illustrates an embodiment of hot-melt fixing a PCB board to a vehicle's B-pillar. The fixing post 21 is a hot-melt post. After the positioning hole 11 is engaged with the corresponding hot-melt fixing post 21, the PCB board 1 is positioned and assembled on the vehicle's B-pillar 2. The fixing post 21 extends through the positioning hole 11 and has a protruding portion. This protruding portion is hot-melt-treated using a hot-melt tool. After the hot-melt cools, the protruding portion of the hot-melt fixing post 21 forms a circular rivet head 211. A cross-shaped groove 212 is centrally located within the circular rivet head 211, dividing it into four sector-shaped elastic structures 213. The diameter of the circular rivet head 211 is larger than the diameter of the positioning hole 11 of the PCB board 1.

[0029] See also Figure 7After the hot melt tooling is withdrawn and the hot melt fixing column 21 cools down, the circular rivet head 211 applies a pressing force F1 to the PCB board 1 in the direction B perpendicular to the surface of the vehicle's B-pillar 2 under the action of elasticity, so that the PCB board 1 is clamped between the circular rivet head 211 and the bottom of the hot melt fixing column 21, thereby fixing the PCB board 1 on the vehicle's B-pillar 2, and ensuring that there is no gap between the circular rivet head 211 and the upper and lower contact surfaces of the PCB board 1, so that the PCB board 1 will not generate vertical vibration relative to the vehicle's B-pillar 2.

[0030] Under the action of elasticity, the elastic structure 213 applies an elastic force F2 to the PCB board 1 from the inner side of the positioning hole 11 in a direction A horizontal to the surface of the vehicle B-pillar 2. This eliminates a radial gap between the elastic structure 213 and the positioning hole 11, preventing the PCB board 1 from generating horizontal vibration relative to the vehicle B-pillar 2.

[0031] The hot melt fixing column 21 of the present disclosure fixes the PCB board 1 on the vehicle B-pillar 2 by hot melt, without the need to install the PCB board through an additional housing and screws, and without the need to provide a mounting structure for mounting the housing on the vehicle B-pillar 2.

[0032] The installation space required for the PCB board of the present disclosure is the size of the PCB board itself (112x 43x 7.6, unit: mm). Compared with the prior art, Figure 1 The installation space is (112+2L) mm long, 50.4 mm wide, and 16.2 mm thick. Figure 2 The installation space is 119.4mm long, 50.4mm wide, and 16.2mm thick. Clearly, the mounting structure of this application occupies less space. Furthermore, through forces F1 and F2, this application secures the PCB to the B-pillar, eliminating noise caused by high B-pillar vibration and the gap between the PCB and the B-pillar. This also maximizes space design requirements, overcoming the drawback of the limited B-pillar space that prevents the installation of large controllers.

[0033] It should be noted that the embodiments of the present application have better practicability and do not impose any form of limitation on the present application. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A vehicle PCB board mounting structure, comprising a vehicle B-pillar and a PCB board, characterized in that: The PCB board is provided with a positioning hole, and the vehicle B-pillar is provided with a fixing column corresponding to the positioning hole of the PCB board; the PCB board is sleeved on the fixing column through the positioning hole so that the PCB board is fixed to the vehicle B-pillar.

2. The mounting structure according to claim 1, wherein: The fixing column is a hot melt column. After the fixing column is sleeved on the positioning hole, it passes through the positioning hole and has a protruding portion. The protruding portion of the fixing column forms a circular rivet head after hot melting and cooling. The circular rivet head has a cross groove in the middle, dividing it into four fan-shaped elastic structures. The diameter of the circular rivet head is larger than the diameter of the positioning hole of the PCB board.

3. The mounting structure according to claim 2, wherein: The circular rivet head applies a pressing force to the PCB board in a direction perpendicular to the surface of the vehicle's B-pillar, so that the PCB board is clamped between the circular rivet head and the bottom of the fixing column, so that there is no gap between the circular rivet head and the upper and lower contact surfaces of the PCB board.

4. The mounting structure according to claim 3, wherein: The elastic structure applies an elastic force to the PCB board from the inner side of the positioning hole in a direction horizontal to the surface of the vehicle B-pillar, so that there is no radial gap between the elastic structure and the positioning hole.

5. The mounting structure according to claim 1, wherein: The PCB board is rectangular, four positioning holes are set at the four corners of the PCB board, one positioning hole is set in the middle of the PCB board, and five fixing columns corresponding to the five positioning holes are set on the B-pillar of the vehicle.

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