Circuit board bonding pad structure

Abstract

The utility model provides a circuit board bonding pad structure, and relates to the technical field of circuit boards. A rectangular bonding pad is fixedly welded at the rear end of the upper end of the circuit board; round bonding pads are fixedly welded to the two ends of the front end of the circuit board respectively. Due to the fact that the lower ends of the bonding pads are limited by the notches, stability of welding spots can be kept even when the circuit board is touched by external force, the structural design can effectively improve the overall reliability of the circuit board, the design of the rectangular bonding pads and the circular bonding pads can improve the shock resistance and impact resistance of the circuit board, and especially in the vibration or impact environment, the circuit board is not prone to falling off. According to the technical scheme, welding points on the periphery of the bonding pad are not prone to being affected, so that the possibility of fault occurrence is reduced, and the problems that a circuit board needs to be slotted due to the fact that a bonding pad structure needs to be fixedly installed on the circuit board, otherwise the bonding pad structure is difficult to be fixedly installed on the surface of the circuit board, and the bonding pad structure is prone to falling off when touched are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit board technical field especially relates to a circuit board pad structure. BACKGROUND

[0002] In the manufacturing process of electronic equipment, the circuit board pad (also known as welding pad) is the key part to realize the connection of electronic components and circuit board, and the design and structure of the pad directly affect the welding quality, reliability and overall performance of the components. The traditional pad structure is commonly seen in through-hole pads and surface mount pads, etc. Each has its own advantages and disadvantages in the production, assembly and maintenance process. With the advancement of technology, the requirements of electronic products for integration, reliability and durability are constantly improving. The existing pad structure faces some challenges, including insufficient welding strength, excessive heat-affected zone, easy occurrence of virtual welding or falling off, etc. Therefore, developing a new type of circuit board pad structure has become a problem to be solved.

[0003] During the installation of the pad on the circuit board, the pad structure needs to be fixed and installed on the circuit board, so a slot needs to be opened on the circuit board. Otherwise, it is difficult to fix and install the pad structure on the surface of the circuit board, and the pad structure is easy to fall off when touched. SUMMARY

[0004] The rectangular pad and the circular pad on the circuit board of the circuit board pad structure are fixed and welded on the circuit board. The lower ends of the rectangular pad and the circular pad are respectively limited by various slots on the circuit board. When the rectangular pad and the circular pad are touched, they will not fall off from the circuit board. Since the lower end of the pad is limited by the slot, the stability of the welding point can be maintained even when it is touched by external force. This structure design can effectively improve the overall reliability of the circuit board. The design of the rectangular and circular pads can improve the shock resistance and impact resistance of the circuit board. Especially in a vibrating or impacting environment, the welding points around the pad are not easily affected, thereby reducing the possibility of failure. The shape and position of the pad can better transfer heat, help reduce thermal resistance, and improve the heat dissipation performance of the circuit board. This helps the components to operate at normal working temperature and prevents overheating. The rectangular and circular pads can adapt to various sizes and types of components, more flexibly meet the needs of circuit design, and facilitate the customization and optimization design of the circuit board.

[0005] In a first aspect, the present disclosure provides a circuit board pad structure, specifically comprising: a circuit board; a rectangular pad fixed and welded at the rear end of the upper end of the circuit board; a anti-falling block fixedly installed at the left end of the rectangular pad, and a stabilizing block fixedly installed at the upper end of the anti-falling block; a positioning plate fixedly installed at the right end of the rectangular pad; and a circular pad fixed and welded at each end of the front end of the circuit board, and a fixed hole penetrating through the middle of the circular pad.

[0006] The edges of the two circular pads are uniformly provided with through holes; the two ends of the lower ends of the two circular pads are respectively fixedly provided with stable blocks; and the middle portions of the bottoms of the two circular pads are respectively fixedly provided with fixed insertion blocks.

[0007] In at least some embodiments, the rear end of the circuit board is provided with a rectangular groove, and the left end inside the rectangular groove is provided with an anti-falling groove.

[0008] In at least some embodiments, the upper end of the anti-falling groove is provided with a stable notch, and the right end of the rectangular groove is provided with a positioning groove.

[0009] In at least some embodiments, the front end of the circuit board is provided with anti-falling circular grooves which are symmetrical to each other, the edges of the anti-falling circular grooves are uniformly provided with through holes, and the two ends inside the anti-falling circular grooves are respectively provided with stable grooves.

[0010] In at least some embodiments, the middle portions of the two anti-falling circular grooves are respectively provided with fixed insertion grooves, and the middle portions of the fixed insertion grooves are provided with through holes.

[0011] In at least some embodiments, the edges of the front side wall of the circuit board are provided with fixed clamping grooves, and irregular pads are inserted into the fixed clamping grooves.

[0012] The utility model provides a kind of circuit board pad structure, with following beneficial effects:

[0013] In the utility model, when rectangular pad and circular pad on circuit board are fixedly welded on circuit board during use of scanner, the lower end of rectangular pad and circular pad is respectively stably limited by various grooves on circuit board, and rectangular pad and circular pad will not fall off from circuit board when being touched, since the lower end of pad is limited by groove, even when being touched by external force, the stability of welding point can be maintained, the overall reliability of circuit board can be effectively improved by this structure design, the anti-shock and anti-impact capability of circuit board can be improved by the design of rectangular and circular pad, especially in vibrating or impacting environment, welding point around pad is not easy to be affected, thereby reducing the possibility of failure, the shape and position of pad can better transfer heat, help to reduce thermal resistance, improve the heat dissipation performance of circuit board, which helps to operate components under normal working temperature, prevent overheating, rectangular and circular pad can adapt to elements of multiple sizes and types, more flexibly meet the needs of circuit design, facilitate the customization and optimal design of circuit board.

[0014] The front end of the irregular pad is welded to ensure firmness with the circuit board, the lower end of the circular pad is installed in the anti-falling circular groove, the movement of the pad is limited by the design of the groove, two stable blocks are respectively inserted at both ends of the circular pad, so that the stability of the pad is further enhanced, the upper end of the annular side wall of the circular pad is welded to the upper end edge of the anti-falling circular groove, and the movement of the periphery is further limited, so that the periphery of the circular pad is limited by the anti-falling circular groove, and the circular pad is not easy to fall off, and the anti-falling block is inserted into the anti-falling groove, at this time, the side wall of the rectangular pad will be attached to the inner side wall of the rectangular groove, to ensure that the side wall of the rectangular pad is closely attached to the inner side wall of the rectangular groove, and then the periphery of the rectangular pad is fixedly welded to the circuit board, and the rectangular pad is limited by the rectangular groove, the anti-falling groove, the stable groove and the positioning groove, and even when subjected to external force impact, the rectangular pad will not move or fall off. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present application, and are not a limitation on the present application.

[0017] In the drawings:

[0018] Figure 1 A left front upper axial structure schematic view of the present application is shown.

[0019] Figure 2 A circuit board partial cross-sectional structure schematic view of the present application is shown.

[0020] Figure 3 A rectangular pad and a circular pad partial structure schematic view of the present application is shown.

[0021] Figure 4 An explosion structure schematic view of the present application is shown.

[0022] LIST OF REFERENCE NUMERALS

[0023] 1, circuit board; 101, rectangular groove; 102, anti-falling groove; 103, stable groove; 104, positioning groove; 105, anti-falling circular groove; 106, stable groove; 107, fixed insertion groove; 108, fixed clamping groove; 109, irregular pad; 2, rectangular pad; 201, anti-falling block; 202, stable block; 203, positioning plate; 3, circular pad; 301, stable block; 302, fixed insertion block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present application.

[0025] Embodiment one: please refer to Figures 1 to 4 :

[0026] The utility model provides a kind of circuit board pad structure, comprising: circuit board 1;Rectangular pad 2 is fixedly welded in the rear end of the upper end of circuit board 1;The two ends of the front end of circuit board 1 are fixedly welded with circular pad 3, and the middle part of circular pad 3 is provided with through fixing hole;Through hole is evenly provided in the edge of two circular pads 3;Two circular pads 3 lower end two ends are respectively fixedly installed with firm block 301;The middle part of the bottom of two circular pads 3 is respectively fixedly installed with fixed plug block 302, and the lower end of circular pad 3 is installed in anti-drop round groove 105, when fixedly installing circular pad 3, the lower end of circular pad 3 is installed in anti-drop round groove 105, first two firm blocks 301 are respectively inserted into two ends firm groove 106, then fixed plug block 302 is inserted in fixed insertion groove 107, when circular pad 3 annular side wall will be attached with the inner annular side wall of anti-drop round groove 105, then the upper end of circular pad 3 annular side wall is fixedly welded on the circuit board 1 of the upper end edge of anti-drop round groove 105, so that the periphery of circular pad 3 is limited by anti-drop round groove 105, circular pad 3 is not moved when being touched, so as to be stably fixedly installed on circuit board 1.

[0027] The rear end of the circuit board 1 is provided with a rectangular slot 101, the left end of the rectangular slot 101 is provided with an anti-off slot 102, the upper end of the anti-off slot 102 is provided with a stable notch 103, the right end of the rectangular slot 101 is provided with a positioning slot 104, the front end of the circuit board 1 is provided with two anti-off circular slots 105 which are symmetrical to each other, the edges of the anti-off circular slots 105 are uniformly provided with through holes, the two ends of the two anti-off circular slots 105 are respectively provided with stable slots 106, the middle parts of the two anti-off circular slots 105 are respectively provided with fixed insertion slots 107, the middle parts of the fixed insertion slots 107 are provided with through circular holes, the fixed holes in the middle part of the circular pad 3 correspond to the circular holes in the middle parts of the fixed insertion slots 107, the edges of the front side wall of the circuit board 1 are provided with fixed clamping slots 108, irregular pads 109 are inserted in the fixed clamping slots 108, the front ends of the irregular pads 109 are flush with the front side wall of the circuit board 1, then the front ends of the irregular pads 109 are welded to the circuit board 1, and the irregular pads 109 are fixedly installed in the fixed clamping slots 108 of the circuit board 1.

[0028] The left end of the rectangular pad 2 is fixedly installed with an anti-off block 201, the upper end of the anti-off block 201 is fixedly installed with a stable block 202, the right end of the rectangular pad 2 is fixedly installed with a positioning plate 203, when the rectangular pad 2 is fixedly installed, the lower end of the rectangular pad 2 is installed in the rectangular slot 101, then the anti-off block 201 is inserted into the anti-off slot 102, at this time, the stable block 202 is clamped in the stable notch 103, then the bottom of the positioning plate 203 is placed in the positioning slot 104, at this time, the side wall of the rectangular pad 2 is attached to the inner side wall of the rectangular slot 101, then the periphery of the rectangular pad 2 is fixedly welded on the circuit board 1, in this way, the periphery of the rectangular pad 2 is limited by the rectangular slot 101, the anti-off slot 102, the stable notch 103 and the positioning slot 104, and the rectangular pad 2 will not move when touched, thereby being stably installed on the circuit board 1.

[0029] In example two, on the basis of example one, as shown in Figure 1 and Figure 4 The edges of the front side wall of the circuit board 1 are provided with fixed clamping slots 108, irregular pads 109 are inserted in the fixed clamping slots 108, small screws are installed on the irregular pads 109, then the lower ends of the irregular pads 109 are slidably inserted in the fixed clamping slots 108, then the small screws on the irregular pads 109 are screwed into the circuit board 1, at this time, the irregular pads 109 will not move or fall when touched, thereby being stably installed on the circuit board 1, in this way, the installed irregular pads 109 are convenient to disassemble or replace.

[0030] The working principle of the embodiment is as follows: in use, the irregular soldering pad 109 is inserted in the fixing slot 108, the front end of the irregular soldering pad 109 is flush with the front side wall of the circuit board 1, then the front end of the irregular soldering pad 109 is welded to the circuit board 1, the irregular soldering pad 109 is fixedly installed in the fixing slot 108 of the circuit board 1, the lower end of the circular soldering pad 3 is installed in the anti-disengagement circular groove 105, when the circular soldering pad 3 is fixedly installed, the lower end of the circular soldering pad 3 is installed in the anti-disengagement circular groove 105, the two stable blocks 301 are inserted into the two stable slots 106 respectively, then the fixing plug 302 is inserted into the fixing slot 107, at this time, the annular side wall of the circular soldering pad 3 is attached to the inner annular side wall of the anti-disengagement circular groove 105, then the upper end of the annular side wall of the circular soldering pad 3 is fixedly welded to the circuit board 1 at the upper end edge of the anti-disengagement circular groove 105, in this way, the periphery of the circular soldering pad 3 is limited by the anti-disengagement circular groove 105, when the circular soldering pad 3 is touched, it will not move, thereby being stably and fixedly installed on the circuit board 1, when the rectangular soldering pad 2 is fixedly installed, the lower end of the rectangular soldering pad 2 is installed in the rectangular groove 101, then the anti-disengagement block 201 is inserted into the anti-disengagement groove 102, at this time, the stable block 202 is clamped in the stable notch 103, then the bottom of the positioning plate 203 is placed in the positioning groove 104, at this time, the side wall of the rectangular soldering pad 2 is attached to the inner side wall of the rectangular groove 101, then the periphery of the rectangular soldering pad 2 is fixedly welded to the circuit board 1, in this way, the periphery of the rectangular soldering pad 2 is limited by the rectangular groove 101, the anti-disengagement groove 102, the stable notch 103 and the positioning groove 104, when the rectangular soldering pad 2 is touched, it will not move, thereby being stably installed on the circuit board 1.

[0031] In this article, the following points need attention:

[0032] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0033] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A circuit board pad structure, comprising: Circuit board (1), the back end of the upper end of the circuit board (1) is fixedly welded with a rectangular pad (2), characterized in that the two ends of the front end of the circuit board (1) are fixedly welded with a circular pad (3), and the middle part of the circular pad (3) is provided with a through fixing hole; the edges of the two circular pads (3) are uniformly provided with through holes; the two ends of the lower end of the two circular pads (3) are fixedly installed with a stable block (301); the middle part of the bottom of the two circular pads (3) is fixedly installed with a fixed plug (302).

2. The circuit pad structure of claim 1, wherein: The back end of the circuit board (1) is provided with a rectangular groove (101), and the left end of the rectangular groove (101) is provided with an anti-drop groove (102).

3. The circuit pad structure of claim 2, wherein: The upper end of the anti-drop groove (102) is provided with a stable notch (103), and the right end of the rectangular groove (101) is provided with a positioning groove (104).

4. The circuit pad structure of claim 1, wherein: The front end of the circuit board (1) is provided with two anti-drop circular grooves (105) which are symmetrical to each other, and the edges of the anti-drop circular grooves (105) are uniformly provided with through holes, and the two ends of the two anti-drop circular grooves (105) are respectively provided with stable grooves (106).

5. The circuit pad structure of claim 4, wherein: The middle part of the two anti-drop circular grooves (105) is respectively provided with a fixed slot (107), and the middle part of the fixed slot (107) is provided with a through circular hole.

6. The circuit pad structure of claim 1, wherein: The edge of the front side wall of the circuit board (1) is provided with a fixed clamping groove (108), and the fixed clamping groove (108) is inserted with an irregular pad (109).

7. The circuit pad structure of claim 1, wherein: The left end of the rectangular pad (2) is fixedly installed with an anti-drop block (201), and the upper end of the anti-drop block (201) is fixedly installed with a stable block (202), and the right end of the rectangular pad (2) is fixedly installed with a positioning plate (203).

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