Low-voltage pin sheath structure

Abstract

The utility model discloses a low-voltage contact pin sheath structure, and relates to the technical field of low-voltage board end sockets, the low-voltage contact pin sheath structure comprises a PCB and a low-voltage contact pin protection assembly, the low-voltage contact pin protection assembly is connected to the top of the PCB, the PCB comprises a board body, the end face of the board body is provided with a contact pin mounting hole, four corners of the board body are respectively provided with a positioning hole, and the low-voltage contact pin protection assembly is connected to the bottom of the board body. According to the scheme, the low-voltage contact pin sheath structure is designed, the structural stability and the operation reliability of the board end connector are effectively improved, the rigidity of the contact pins is particularly improved, bending deformation possibly occurring in the using process is prevented, due to the design that the contact pins and the insulator are pre-fixed, the assembling process is simplified, installation is more rapid and convenient, and the cost is reduced. The gap design between the bottom of the insulator and the end face of the PCB prevents overflow of soldering tin, so that equipment damage possibly caused by short circuit is avoided, the fabrication holes ensure uniform wall thickness of the insulator, conditions are provided for forming of a mold, and the key effect on improving the overall quality of products and the machining efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage board-end sockets, in particular to a low-voltage plug pin sheath structure. Background Art

[0002] The low-voltage pin-sheath structure refers to a protective device for low-voltage electrical connectors. Usually, this structure consists of a pin and a sheath. The pin is used to connect the circuit, while the sheath is used to protect the pin and other parts of the connector from damage or the influence of the external environment. The sheath can be made of various materials, such as plastic, rubber, etc., with good insulation performance and durability to ensure the stability and reliability of the connector. This structure is usually used in various low-voltage electrical equipment, such as household appliances, electronic products, etc., to provide safe and reliable electrical connections.

[0003] At present, charging sockets have high requirements for signal integration. The internal signals and functional circuits of the sockets are implemented by PCB. At the same time, a board-end connector is required to be designed on the PCB to realize signal output. The existing board-end connector pins are long and have poor rigidity, which is easy to bend during use. Based on this, we propose a low-voltage pin sheath structure to solve the above-mentioned problems. Utility Model Content

[0004] In order to improve the above-mentioned problems, the utility model provides a low-voltage pin sheath structure.

[0005] The utility model provides a low-voltage pin sheath structure, which adopts the following technical scheme: a low-voltage pin sheath structure, comprising a PCB board and a low-voltage pin protection component, the low-voltage pin protection component is connected to the top of the PCB board, the PCB board comprises a board body, the end surface of the board body is provided with a pin installation hole, and the two sides of the pin installation hole on the board body are also provided with positioning holes respectively;

[0006] The low-voltage plug pin protection assembly includes an insulator formed by a hard plastic material mold, heat dissipation windows are respectively opened on both sides of the insulator, a plurality of rows of plug pins are connected through the interior of the insulator, and positioning pins are also respectively provided on both sides of the bottom of the insulator.

[0007] Based on the above technical features: The low-voltage pin sheath structure proposed by the utility model is mainly aimed at the installation and protection of the board-end connector. The core working principle is to use the insulator formed by a well-designed hard plastic material mold and the structural characteristics of the insulator to achieve the stability and protection of the connection between the row pins and the PCB board. Multiple groups of row pins are connected through the insulator, and multiple groups of positioning pins, supporting bosses and guide holes are designed to assist the correct positioning and stable assembly of the row pins;

[0008] In addition, the heat dissipation window on the insulator provides heat dissipation for the row pins, improving the current carrying capacity and operational stability of the equipment. During the assembly process, the guide angle of the insulator assists in the smooth installation of the row pins, and the first and second chambers preset inside utilize a slight interference with the first and second barbs of the row pins to achieve pre-fixation of the pin body, which provides convenience for welding and ensures the firmness of the assembly.

[0009] As a low-voltage plug sheath structure described in the utility model, wherein: multiple groups of process holes are opened on both sides of the bottom of the insulator, and three groups of supporting bosses are also arranged at the bottom of the insulator.

[0010] Based on the above technical features: This solution provides a solid and reliable structural support for the row of pins through the above structural design, and also provides important help in optimizing the entire assembly process, preventing welding short circuits and improving heat dissipation efficiency.

[0011] As a low-voltage pin sheath structure described in the utility model, wherein: first interference points are respectively provided on both sides of the bottom of the heat dissipation window, and a second interference point is also provided at the bottom of the first interference point.

[0012] Based on the above technical features: The first interference point and the second interference point in this solution are important supplements to the heat dissipation window function. The design of these details makes the insulator more superior in heat dissipation without sacrificing structural strength, and provides additional consideration space for cost control and product appearance design.

[0013] As a low-voltage pin sheath structure described in the utility model, wherein: guide bevels are respectively arranged on both sides of the top of the process hole, a hole bottom surface is arranged on one side of the process hole close to the guide bevel, a first chamber is opened inside the process hole, a second chamber is opened near the bottom of the first chamber of the process hole, and a guide hole is also opened at the opening of the process hole.

[0014] Based on the above technical features: This solution ensures the accuracy and efficiency of component assembly through the above structural design, while also taking into account the lightweight and strength requirements of the structure, providing a solid and reliable support platform and laying a good foundation for welding and other connection methods.

[0015] As a low-voltage pin sheath structure described in the utility model, wherein: the row-type pin includes a pin body, guide chamfers are respectively installed on both sides of one end of the pin body, stop surfaces are respectively provided at the tops of the two groups of guide chamfers, barbs 1 are respectively provided at both ends of the two groups of guide chamfers, and barbs 2 are also respectively provided at the bottoms of the two groups of guide chamfers.

[0016] Based on the above technical features: This solution provides the necessary guiding, positioning and fixing effects during the assembly of the row of pins and their subsequent use through the above structural design. In addition, the tight fit brought by the barb structure not only strengthens the physical connection, but also helps prevent poor contact due to plugging and unplugging, thereby ensuring the long-term stability of the electrical connection. This design reduces the difficulty and time of assembly, improves stability and reliability, and extends the service life of the product.

[0017] As a low-voltage pin sheath structure described in the utility model, wherein: the stop surface matches the hole bottom surface structure, and the stop surface and the hole bottom surface are snap-fitted.

[0018] Based on the above technical features: This solution ensures the key mechanism for precision, stability and reliability of the row-type pin structure through the structural design of the snap-fit ​​between the stop surface and the bottom surface of the hole. It is also an important consideration for optimizing the pin assembly process. Through this carefully designed structural matching, the overall functionality and ease of operation of the pin sheath structure are significantly improved.

[0019] In summary, the present invention has at least one of the following beneficial effects:

[0020] 1. This scheme designs a low-voltage pin sheath structure, which effectively improves the structural stability and operational reliability of the board-end connector, especially improves the rigidity of the pin, prevents bending and deformation that may occur during use. Due to the pre-fixed design between the pin and the insulator, it also simplifies the assembly process, making installation faster and more convenient. The gap design between the bottom of the insulator and the end face of the PCB board prevents solder overflow, thereby avoiding possible equipment damage caused by short circuits. The process hole ensures that the wall thickness of the insulator is uniform, providing conditions for the molding of the mold, which plays a key role in improving the overall product quality and processing efficiency;

[0021] 2. In addition, the heat dissipation window design of the insulator effectively improves the current-carrying capacity of the row of pins and enhances the performance stability of the overall electrical connection. Overall, the design of the structure of the utility model brings better electrical performance, higher assembly efficiency and longer product life, and significantly optimizes the product performance in the field of low-voltage board-end socket technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the PCB board structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the insulator structure of the utility model;

[0025] Figure 4The utility model is an insulator cross-sectional view Figure 1 ;

[0026] Figure 5 It is a schematic diagram of the process hole structure of the utility model;

[0027] Figure 6 The utility model Figure 4 The enlarged structural diagram at A in the middle;

[0028] Figure 7 The utility model is an insulator cross-sectional view Figure 2 ;

[0029] Figure 8 The utility model Figure 7 The enlarged structural diagram at B in the middle;

[0030] Fig. 9 It is a schematic diagram of the needle body structure of the utility model.

[0031] Description of reference numerals:

[0032] 1. PCB board; 2. Low-voltage pin protection assembly; 3. Board body; 4. Pin mounting hole; 5. Positioning hole; 6. Insulator; 7. Heat dissipation window; 8. Pin row; 9. Positioning pin; 10. Process hole; 11. Support boss; 12. First interference point; 13. Second interference point; 14. Guide bevel; 15. Hole bottom surface; 16. First chamber; 17. Second chamber; 18. Guide hole; 19. Pin body; 20. Guide chamfer; 21. Stop surface; 22. Barb one; 23. Barb two. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-9 The utility model is described in further detail.

[0034] See also Figure 1-5 The utility model provides a low-voltage pin sheath structure, including a PCB board 1 and a low-voltage pin protection component 2, the low-voltage pin protection component 2 is connected to the top of the PCB board 1, the PCB board 1 includes a board body 3, the end surface of the board body 3 is provided with a pin mounting hole 4, and the two sides of the mounting hole 4 on the board body 3 are respectively provided with positioning holes 5, the low-voltage pin protection component 2 includes an insulator 6 formed by a hard plastic material mold, and the two sides of the insulator 6 are respectively provided with heat dissipation windows 7, and the interior of the insulator 6 is penetrated and connected with multiple groups of row pins 8, and the bottom sides of the insulator 6 are respectively provided with positioning pins 9, and the bottom sides of the insulator 6 are provided with multiple groups of process holes 10, and the bottom of the insulator 6 is also provided with three supporting bosses 11. Through the above-mentioned structural design, a solid and reliable structural support is provided for the row pin 8, and at the same time, it also provides important help for optimizing the entire assembly process, preventing welding short circuits, and improving heat dissipation efficiency.

[0035] See also Figure 5-8 , first interference points 12 are respectively provided on both sides of the bottom of the heat dissipation window 7, and a second interference point 13 is also provided at the bottom of the first interference point 12. The first interference point 12 and the second interference point 13 in this scheme are important supplements to the function of the heat dissipation window 7. The design of these details makes the insulator 6 more superior in heat dissipation performance without sacrificing structural strength, and provides additional consideration space for cost control and product appearance design. Guide bevels 14 are respectively provided on both sides of the top of the process hole 10, and a hole bottom surface 15 is provided on one side of the process hole 10 close to the guide bevel 14. A first chamber 16 is provided inside the process hole 10, and a second chamber 17 is provided at the bottom of the process hole 10 close to the first chamber 16. A guide hole 18 is also provided at the opening of the process hole 10. Through the above-mentioned structural design, the accuracy and efficiency of component assembly are ensured, while taking into account the lightweight and strength requirements of the structure, providing a firm and reliable support platform and laying a good foundation for welding and other connection methods.

[0036] See also Fig. 9 The row-type plug pin 8 includes a pin body 19, and guide chamfers 20 are respectively installed on both sides of one end of the pin body 19, and stop surfaces 21 are respectively arranged on the tops of the two groups of guide chamfers 20, and barbs 22 are respectively arranged at both ends of the two groups of guide chamfers 20, and barbs 23 are also respectively arranged at the bottoms of the two groups of guide chamfers 20. Through the above-mentioned structural design, the necessary guiding, positioning and fixing effects are provided during the assembly and subsequent use of the row-type plug pin 8. In addition, the tight fit brought by the barb structure not only strengthens the physical connection, but also helps to prevent poor contact caused by plugging and unplugging, ensuring electrical The long-term stability of the gas connection, such a design reduces the difficulty and time of assembly, improves stability and reliability, and extends the service life of the product. The stop surface 21 matches the structure of the bottom surface 15 of the hole, and the stop surface 21 and the bottom surface 15 of the hole are snap-fitted. The snap-fitting structural design between the stop surface 21 and the bottom surface 15 of the hole is a key mechanism to ensure the structural accuracy, stability and reliability of the row of pins 8, and is also an important consideration for optimizing the pin assembly process. Through this carefully designed structural matching, the overall functionality of the pin sheath structure and the ease of operation are significantly improved.

[0037] Working principle: The low-voltage pin sheath structure proposed by the utility model is mainly aimed at the installation and protection of the board-end connector. The core working principle is to use the insulator 6 formed by a well-designed hard plastic material mold and the structural characteristics of the insulator 6 to achieve the stability and protection of the connection between the row pins 8 and the PCB board 1. Multiple groups of row pins 8 are connected through the insulator 6. At the same time, multiple groups of positioning pins 9, supporting bosses 11 and guide holes 18 are designed to assist the correct positioning and stable assembly of the row pins 8;

[0038] In addition, the heat dissipation window 7 on the insulator 6 provides heat dissipation for the row pin 8, thereby improving the current carrying capacity and the operational stability of the equipment. During the assembly process, the guide bevel 14 of the insulator 6 assists in the smooth installation of the row pin 8, and the first chamber 16 and the second chamber 17 preset inside utilize a slight interference with the barb 1 22 and the barb 2 23 of the row pin 8 to achieve pre-fixation of the needle body 19, which provides convenience for welding and ensures the firmness of the assembly.

[0039] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A low-voltage pin sheath structure, comprising a PCB board (1) and a low-voltage pin protection assembly (2), wherein the low-voltage pin protection assembly (2) is connected to the top of the PCB board (1), characterized in that: The PCB board (1) comprises a board body (3), the end surface of the board body (3) is provided with a pin mounting hole (4), and positioning holes (5) are respectively provided on both sides of the mounting hole (4) on the board body (3); The low-voltage plug pin protection assembly (2) comprises an insulator (6) formed by a hard plastic material mold, heat dissipation windows (7) are respectively provided on both sides of the insulator (6), a plurality of rows of plug pins (8) are connected through the interior of the insulator (6), and positioning pins (9) are respectively provided on both sides of the bottom of the insulator (6).

2. A low-voltage pin sheath structure according to claim 1, characterized in that: A plurality of groups of process holes (10) are provided on both sides of the bottom of the insulator (6), and three groups of supporting bosses (11) are also provided on the bottom of the insulator (6).

3. A low-voltage pin sheath structure according to claim 2, characterized in that: The heat dissipation window (7) is provided with first interference points (12) on both sides of the bottom thereof, and a second interference point (13) is provided at the bottom of the first interference point (12).

4. A low-voltage pin sheath structure according to claim 3, characterized in that: Guide bevels (14) are respectively arranged on both sides of the top of the process hole (10); a hole bottom surface (15) is arranged on one side of the process hole (10) close to the guide bevel (14); a first chamber (16) is opened inside the process hole (10); a second chamber (17) is opened near the bottom of the first chamber (16) of the process hole (10); and a guide hole (18) is also opened at the opening of the process hole (10).

5. A low-voltage pin sheath structure according to claim 4, characterized in that: The row-type plug pin (8) comprises a needle body (19), and guide chamfers (20) are respectively installed on both sides of one end of the needle body (19), and the tops of the two groups of guide chamfers (20) are respectively provided with stop surfaces (21), and the two ends of the two groups of guide chamfers (20) are respectively provided with barbs (22), and the bottoms of the two groups of guide chamfers (20) are also respectively provided with barbs (23).

6. A low-voltage pin sheath structure according to claim 5, characterized in that: The stop surface (21) matches the hole bottom surface (15) in structure, and the stop surface (21) and the hole bottom surface (15) are snap-fitted.

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