A type of anti-loosening CAN interface board

Abstract

This utility model provides an anti-loosening CAN interface board, including a housing structure. The housing body has mounting blocks at its top and bottom on its inner wall. A positioning groove is formed on the inner side of each mounting block, and the longitudinal section of the positioning groove is a right-angled triangle. This utility model is rationally designed. Through the interaction between the U-shaped spring plate and the positioning groove, the board body can be quickly connected simply by placing it inside the housing body, allowing the U-shaped spring plate and positioning groove to engage. Subsequently, a pin is inserted between the housing body and the board body for secondary positioning of the board body, thus preventing loosening and poor contact during use.

Description

Technical Field

[0001] This utility model mainly relates to the field of CAN interface boards, specifically to an anti-loosening CAN interface board. Background Technology

[0002] As a mature, reliable, and cost-effective fieldbus technology, CAN bus is widely used in complex and demanding electromagnetic and physical environments such as automotive, construction machinery, industrial automation, rail transportation, and ship control due to its excellent anti-interference capabilities and multi-master communication characteristics. In these application scenarios, devices typically face continuous mechanical vibration, shock, temperature changes, and frequent plugging and unplugging operations.

[0003] As a key component connecting upper-level controllers (such as PLCs, industrial PCs, ECUs, etc.) to the CAN bus network, the physical connection reliability of the CAN interface board (usually a standard DB9 or D-Sub connector) is of paramount importance.

[0004] During the operation of specific embodiments, the inventors discovered the following defects:

[0005] The most commonly used D-Sub connectors, such as the DB9, are mainly secured by screws (or clips). However, in environments with high intensity and continuous vibration (such as engineering vehicles, large machinery, and mobile platforms), the connector's own fixing screws or clips are prone to gradually loosening due to metal fatigue, accumulation of small displacements, or screw self-loosening effects, leading to increased contact resistance and even communication interruption.

[0006] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0007] 1. The technical problem to be solved by the utility model:

[0008] This utility model provides an anti-loosening CAN interface board to solve the technical problems existing in the background art.

[0009] 2. Technical Solution:

[0010] To achieve the above objectives, the technical solution provided by this utility model is as follows: an anti-loosening CAN interface board, comprising a housing structure, wherein the board structure is provided inside the housing structure;

[0011] A shell structure includes a shell body, with mounting blocks provided at the top and bottom of the inner wall of the shell body, and a positioning groove provided on the inner side of the mounting block, the longitudinal section of the positioning groove being a right-angled triangle;

[0012] The board structure includes a side plate, a board body, and a connecting piece. The top and bottom of the connecting piece are provided with brackets, and one end of the bracket is provided with a U-shaped spring plate, which is engaged with a positioning groove.

[0013] Furthermore, the interior of the housing body is provided with auxiliary holes, a heat-conducting plate is provided at the bottom of the housing body, a heat dissipation plate is provided on the inner side of the heat-conducting plate, and a gap is provided between the heat dissipation plate and the heat-conducting plate.

[0014] Furthermore, the heat sink is inclined on both sides, and an air inlet slot is provided inside the heat sink, with multiple air inlet slots.

[0015] Furthermore, a wiring port is provided in the middle of one side of the side plate, a mounting plate is provided on the other side of the side plate, and side strips are provided at both ends of the other side of the side plate, with insert shafts provided inside the side strips.

[0016] Furthermore, the board body has a first limiting hole, a second limiting hole and a third limiting hole respectively inside. The first limiting hole is connected to the mounting plate, the second limiting hole is connected to the insertion shaft, and the third limiting hole is connected to the connecting piece.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0019] This utility model utilizes the interplay between a U-shaped spring plate and a positioning groove. Simply insert the circuit board body into the housing body, allowing the U-shaped spring plate and positioning groove to engage, and the circuit board body can be quickly connected. Subsequently, inserting the insertion shaft between the housing body and the circuit board body provides secondary positioning for the circuit board body, thereby preventing the circuit board body from becoming loose and causing poor contact during use. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a three-dimensional unfolded structural diagram of the board structure of this utility model;

[0023] Figure 4 This is a three-dimensional cross-sectional view of the shell structure of this utility model.

[0024] Figure label:

[0025] 1. Shell structure; 101. Shell body; 102. Mounting block; 103. Positioning groove; 104. Auxiliary hole; 105. Heat-conducting plate; 106. Heat dissipation plate; 107. Air inlet groove; 2. Board structure; 201. Side plate; 202. Wiring port; 203. Mounting plate; 204. Side strip; 205. Insert shaft; 206. Board body; 207. First limiting hole; 208. Second limiting hole; 209. Third limiting hole; 210. Connecting piece; 211. Bracket; 212. U-shaped spring plate. Detailed Implementation

[0026] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0030] See attached document Figure 1-4 A CAN interface board for preventing loosening includes a housing structure 1, and a board structure 2 is disposed inside the housing structure 1.

[0031] The housing structure 1 includes a housing body 101. Mounting blocks 102 are provided at the top and bottom of the inner wall of the housing body 101. A positioning groove 103 is provided on the inner side of the mounting block 102, and the longitudinal section of the positioning groove 103 is a right-angled triangle. An auxiliary hole 104 is provided inside the housing body 101. A heat-conducting plate 105 is provided at the bottom of the housing body 101. A heat dissipation plate 106 is provided on the inner side of the heat-conducting plate 105. A gap is provided between the heat dissipation plate 106 and the heat-conducting plate 105. The two sides of the heat dissipation plate 106 are inclined. An air inlet groove 107 is provided inside the heat dissipation plate 106. Multiple air inlet grooves 107 are provided. During the operation of the circuit board 206, external gas flows through the gap between the heat dissipation plate 106 and the heat-conducting plate 105, and air also passes through the air inlet grooves 107, dissipating heat from the circuit board 206 and preventing the temperature of the circuit board 206 from rising during long-term operation.

[0032] The board structure 2 includes a side plate 201, a board body 206, and a connecting piece 210. The connecting piece 210 has brackets 211 at its top and bottom. One end of each bracket 211 has a U-shaped spring plate 212, which engages with a positioning groove 103. A wiring port 202 is located in the middle of one side of the side plate 201. A mounting plate 203 is located on the other side of the side plate 201. Side strips 204 are located at both ends of the other side of the side plate 201. Insertion shafts 205 are located inside the side strips 204. The board body 206 has a first limiting hole 207, a second limiting hole 208, and a third limiting hole 209. The first limiting hole 207 connects to the mounting plate 203. The plate 203 is connected, the second limiting hole 208 is connected to the insertion shaft 205, and the third limiting hole 209 is connected to the connecting piece 210. When it is necessary to install the board body 206 into the inside of the housing body 101, the mounting plate 203 on one side of the side plate 201 is connected to the first limiting hole 207 inside the board body 206, and the wiring port 202 is electrically connected to the board body 206. Then, the board body 206 inside the side plate 201 is pushed into the inside of the housing body 101. After that, the housing body 101 presses the bracket 211. Then, after the U-shaped spring plate 212 is aligned with the positioning groove 103, the bracket 211 pushes the U-shaped spring plate 212 into the inside of the positioning groove 103 for engagement.

[0033] Then, insert the insert shaft 205 between the auxiliary hole 104 and the second limiting hole 208 to fix the board body 206 a second time to prevent the board body 206 from shaking.

[0034] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A CAN interface board for preventing loosening, characterized in that: include The shell structure (1) has a plate structure (2) inside. The shell structure (1) includes a shell body (101), and mounting blocks (102) are provided at the top and bottom of the inner wall of the shell body (101). A positioning groove (103) is provided on the inner side of the mounting block (102), and the longitudinal section of the positioning groove (103) is set as a right triangle. The board structure (2) includes a side plate (201), a board body (206) and a connecting piece (210). The top and bottom of the connecting piece (210) are provided with a bracket (211). One end of the bracket (211) is provided with a U-shaped spring plate (212). The U-shaped spring plate (212) is engaged with the positioning groove (103).

2. The anti-loosening CAN interface board according to claim 1, characterized in that: An auxiliary hole (104) is provided inside the housing body (101). A heat-conducting plate (105) is provided at the bottom of the housing body (101). A heat dissipation plate (106) is provided on the inner side of the heat-conducting plate (105). A gap is provided between the heat dissipation plate (106) and the heat-conducting plate (105).

3. The anti-loosening CAN interface board according to claim 2, characterized in that: The heat sink (106) is inclined on both sides, and an air inlet groove (107) is provided inside the heat sink (106), and the number of air inlet grooves (107) is set to multiple.

4. The anti-loosening CAN interface board according to claim 1, characterized in that: A wiring port (202) is provided in the middle of one side of the side plate (201), a mounting plate (203) is provided on the other side of the side plate (201), and side strips (204) are provided at both ends of the other side of the side plate (201). Insert shafts (205) are provided inside the side strips (204).

5. The anti-loosening CAN interface board according to claim 1, characterized in that: The board body (206) has a first limiting hole (207), a second limiting hole (208) and a third limiting hole (209) respectively. The first limiting hole (207) is connected to the mounting plate (203), the second limiting hole (208) is connected to the insert shaft (205), and the third limiting hole (209) is connected to the connecting piece (210).

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