Waterproof male connector with FPC board

Abstract

The utility model discloses a waterproof male connector with FPC board, including metal shell, hot melt adhesive layer, PCB board, FPC board and waterproof spare, through setting up hot melt adhesive layer in the installation groove and with installation groove is adapted, the one end of PCB board is overlapped and is set up in the upper surface of hot melt adhesive layer and is located in the installation groove, the other end of PCB board is set up in the point gum groove after passing through the installation hole, and the second pad is electrically connected with the first pad through pulse hot pressure welding, and one end of the FPC board with the second pad is set up in the point gum groove, and the other end of the FPC board extends out the base, and the waterproof spare is set up in the point gum groove, and the PCB board, the FPC board and the waterproof spare are fixed together in inlaying forming, and the flexibility and the bendability of the FPC board in this male connector are good, have very high degree of freedom, improve space adaptability, are more suitable for assembling in three -dimensional space, bring the convenience for the use of user, and effectively enhance the waterproof performance of male connector, improve product quality, prolong the service life of product.

Description

Technical Field

[0001] This utility model relates to the field of male connectors, and in particular to a waterproof male connector with an FPC board. Background Technology

[0002] Electronic connectors, also known as circuit connectors or electrical connectors, are conductor devices that bridge two conductors in a circuit, allowing current or signals to flow from one conductor to the other. An electronic connector is an electrical system that provides a separable interface for connecting two electronic systems. Simply put, a connector is a component used to complete the electrical connection between circuits or electronic devices; it is the bridge between the two. Examples include power plugs / sockets, IC sockets, telephone line plugs, etc.

[0003] Electronic connectors are widely used in various electrical circuits to connect or disconnect current or signals. This connection can be temporary and easily plugged in and out, or it can be a permanent connection between electrical equipment or wires. Electronic connectors are generally divided into two categories: female connectors and male connectors. Female connectors and male connectors are used in sets, and by mating the female connector and male connector, the circuit is made conductive to achieve data transmission.

[0004] Current male connectors generally consist of a metal shell and a PCB board. The metal shell has a mounting groove, one end of the PCB board is positioned within the groove, and the other end extends out of the metal shell. During assembly, the pads on the other end of the PCB board are soldered to pads on an external circuit board to establish electrical connection. This structure is relatively simple and, while it essentially enables the connector to conduct electricity, the rigid, plate-like structure of the PCB board limits its flexibility. This restricts the male connector's mounting method significantly, resulting in poor spatial adaptability and unsuitability for three-dimensional assembly, causing inconvenience for users. Furthermore, male connectors have poor waterproofing; external liquids can easily seep into the connector through the gap between the metal shell and the PCB board, affecting the operation of machinery and posing a significant safety hazard. The product quality is generally low, and the lifespan is short, failing to meet current requirements. Therefore, it is necessary to research a new technical solution to improve current male connectors. Utility Model Content

[0005] In view of this, the present invention addresses the shortcomings of existing technologies by providing a waterproof male connector with an FPC board. This effectively solves the problems of existing male connectors, such as the rigid, plate-like structure of the PCB board which cannot be bent freely, limiting the installation method and making them unsuitable for three-dimensional assembly, causing inconvenience to users; poor waterproofing, allowing external liquids to easily seep into the connector through the gap between the metal shell and the PCB board, affecting the operation of machinery and posing significant safety hazards; and generally low product quality and short service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A waterproof male connector with an FPC board includes a metal shell, a hot melt adhesive layer, a PCB board, an FPC board, and a waterproof component. The metal shell includes a base and a tongue extending outward from the base. Mounting holes are formed through the front and rear sides of the base. A dispensing groove is provided at the rear end of the base, communicating with the mounting holes. A mounting slot is provided on the upper surface of the tongue, communicating with the mounting holes. The hot melt adhesive layer is disposed in the mounting slot and adapted to the mounting slot. One end of the PCB board is overlapped on the upper surface of the hot melt adhesive layer and located in the mounting slot. The other end of the PCB board passes through the mounting hole and is disposed in the dispensing groove. The PCB board is positioned close to the hot melt adhesive layer. The PCB board has multiple gold fingers on its upper surface. A first pad is located on the surface of the PCB board away from the hot melt adhesive layer, and this first pad is electrically connected to the multiple gold fingers. A second pad is located on one end of the FPC board, and this second pad is electrically connected to the first pad via pulse hot-press welding. This simple operation ensures a stable and reliable connection between the PCB board and the FPC board. The end of the FPC board with the second pad is positioned in a dispensing groove, and the other end of the FPC board extends outwards to form a base. The waterproof component is also positioned in the dispensing groove. The PCB board, FPC board, and waterproof component are inlaid and fixed together, effectively enhancing the product's waterproof performance, improving product quality, and extending the product's service life.

[0008] As a preferred embodiment, the left and right sides of the tongue plate are provided with fixing grooves for engaging and fixing with the locking mechanism of the female connector, which effectively enhances the stability of the connection structure between the male connector and the female connector, making the male connector less prone to loosening, improving product quality, extending product lifespan, and making it more durable.

[0009] As a preferred embodiment, the fixing groove has a trapezoidal structure.

[0010] As a preferred solution, the tongue plate portion has a "convex" shape structure, which is beneficial for anti-fooling and can prevent the male connector from being inserted reversely and damaging the terminals of the female connector.

[0011] As a preferred solution, the mounting groove is square. Correspondingly, the hot-melt adhesive layer is square, and one end of the PCB board close to the hot-melt adhesive layer is set to be square.

[0012] As a preferred solution, the metal shell includes an extension portion which extends backward from the rear end of the base. A stainless steel sheet is provided on the FPC board. The stainless steel sheet is fixedly connected to the extension portion by spot welding and a plurality of welding points are formed on the surface of the stainless steel sheet, which can effectively reduce the impedance of the FPC board, is simple to operate and convenient for assembly production. The setting of the stainless steel sheet can enhance the strength of part of the FPC board, improve the quality of the product and meet different requirements.

[0013] As a preferred solution, a through hole is formed through the upper and lower surfaces of the extension portion, and the other end of the FPC board extends outwards after passing through the through hole.

[0014] As a preferred solution, the upper surface of the PCB board is flush with the upper surface of the tongue plate portion, and the plurality of gold finger protrusions are provided on the upper surface of the PCB board.

[0015] As a preferred solution, the metal shell is a hardware shell.

[0016] As a preferred solution, an insulating layer is provided on the outer surface of the metal shell, which is obtained by electroplating process. When the male connector is inserted into the female connector, it can effectively prevent the metal shell of the male connector from contacting the terminals of the female connector and causing a short circuit, and improve the safety performance during use.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0018] By placing a hot melt adhesive layer in and fitting it into the mounting groove, one end of the PCB board is stacked on the upper surface of the hot melt adhesive layer and located in the mounting groove. The other end of the PCB board is placed in the dispensing groove after passing through the mounting hole. The second pad and the first pad are electrically connected by pulse hot pressing. One end of the FPC board with the second pad is placed in the dispensing groove, and the other end of the FPC board extends outward to form a base. The waterproof component is placed in the dispensing groove. The PCB board, FPC board, and waterproof component are embedded and fixed together. In this structure of the male connector, the FPC board has good flexibility and bendability, has a high degree of freedom, is more flexible in installation, improves spatial adaptability, and is more suitable for assembly in three-dimensional space, bringing convenience to users. In addition, it effectively enhances the waterproof performance of the male connector, and the structural sealing performance is better, preventing external liquids from flowing into the connector from the gap between the metal shell and the PCB board, ensuring the normal operation of the machine equipment, improving the safety performance during use, improving product quality, extending the product's service life, and meeting current needs.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of another preferred embodiment of the present utility model;

[0022] Figure 3 This is a front view of a preferred embodiment of the present invention;

[0023] Figure 4 This is an exploded view of a preferred embodiment of the present invention;

[0024] Figure 5 This is an exploded view from another angle of a preferred embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention.

[0026] Explanation of reference numerals in the attached diagram:

[0027] 10. Metal casing 11. Base

[0028] 12. Tongue plate portion 121. Fixing groove

[0029] 13. Extension 131. Through hole

[0030] 101. Mounting hole; 102. Glue dispensing groove

[0031] 103. Mounting groove 20. Hot melt adhesive layer

[0032] 30. PCB board 31. Gold finger

[0033] 32. First pad 40. FPC board

[0034] 41. Second pad 42. Stainless steel sheet

[0035] 43. Solder joint 50. Waterproof component. Specific embodiments

[0036] Please refer to Figures 1 to 6 as shown, which shows the specific structure of the preferred embodiment of the present utility model, including a metal shell 10, a hot melt adhesive layer 20, a PCB board 30, an FPC board 40, and a waterproof component 50.

[0037] The metal shell 10 includes a base 11 and a tongue plate portion 12 extending outward from the base 11. Mounting holes 101 are formed through the front and rear sides of the base 11. A glue dispensing groove 102 is provided at the rear end of the base 11. The glue dispensing groove 102 is communicated with the mounting holes 101. A mounting groove 103 is provided on the upper surface of the tongue plate portion 12. The mounting groove 103 is communicated with the mounting holes 101; in this embodiment, fixing grooves 121 for cooperating with the latches of the female socket connector for fixing are provided on the left and right sides of the tongue plate portion 12, effectively enhancing the stability of the connection structure between the male connector and the female socket connector, making the male connector not easy to loosen, improving the quality of the product, extending the service life of the product, and being more durable; specifically, the fixing groove 121 is a trapezoidal structure; the tongue plate portion 12 is a "convex" - shaped structure, which is beneficial for anti - misoperation and prevents the male connector from being inserted reversely and damaging the terminals of the female socket connector; the mounting groove 103 is square; the metal shell 10 includes an extension portion 13, which extends backward from the rear end of the base 11; a through - hole 131 is formed through the upper and lower surfaces of the extension portion 13; the metal shell 10 is a hardware shell; an insulating layer (not shown in the figure) is provided on the outer surface of the metal shell 10, which is obtained by electroplating process. When the male connector and the female socket connector are inserted into each other, it can effectively prevent the metal shell 10 of the male connector from contacting the terminals of the female socket connector and causing a short - circuit, improving the safety performance during use.

[0038] The hot melt adhesive layer 20 is disposed in the mounting groove 103 and is adapted to the mounting groove 103; in this embodiment, the hot melt adhesive layer 20 is square.

[0039] One end of the PCB board 30 is stacked on the upper surface of the hot melt adhesive layer 20 and located in the mounting groove 103. The other end of the PCB board 30 passes through the mounting hole 101 and is placed in the dispensing groove 102. A plurality of gold fingers 31 are provided on the upper surface of the end of the PCB board 30 near the hot melt adhesive layer 20. A first pad 32 is provided on the upper surface of the end of the PCB board 30 away from the hot melt adhesive layer 20. The first pad 32 is electrically connected to the plurality of gold fingers 31. In this embodiment, the end of the PCB board 30 near the hot melt adhesive layer 20 is square. The upper surface of the PCB board 30 is flush with the upper surface of the tongue plate portion 12. The plurality of gold fingers 31 are protruding on the upper surface of the PCB board 30.

[0040] The FPC board 40 has a second pad 41 on one end surface, which is electrically connected to the first pad 32 by pulse hot-press welding. The operation is simple, and the connection between the PCB board 30 and the FPC board 40 is stable and reliable. The end of the FPC board 40 with the second pad 41 is set in the dispensing groove 102, and the other end of the FPC board 40 extends outward to the base 11. In this embodiment, a stainless steel sheet 42 is provided on the FPC board 40. The stainless steel sheet 42 is fixedly connected to the extension 13 by spot welding, and multiple solder points 43 are formed on the surface of the stainless steel sheet 42. This can effectively reduce the impedance of the FPC board 40, simplify the operation, and facilitate assembly and production. The stainless steel sheet 42 can improve the strength of the FPC board 40, improve the quality of the product, and meet different needs. The other end of the FPC board 40 extends outward after passing through the through hole 131. The FPC board 40 and the stainless steel sheet 42 are bonded together with adhesive.

[0041] The waterproof component 50 is set in the dispensing groove 102. The PCB board 30, FPC board 40 and the waterproof component 50 are embedded and fixed together, which effectively enhances the waterproof performance of the product, improves the product quality and extends the service life of the product.

[0042] The manufacturing and assembly process of this embodiment is described in detail below:

[0043] First, the metal casing 10 (with an insulating layer formed on its outer surface through electroplating), PCB board 30, and FPC board 40 are formed. Next, the first pad 32 of PCB board 30 and the second pad 41 of FPC board 40 are welded together by pulse hot pressing. Hot melt adhesive is applied to the lower surface of the end of PCB board 30 with multiple gold fingers 31, and this end is inserted from back to front through the mounting hole 101 of metal casing 10 and installed into mounting groove 103, thus forming a semi-finished product. The semi-finished product is heated so that the hot melt adhesive forms a hot melt adhesive layer 20 to firmly bond PCB board 30 and metal casing 10. Then, the end of FPC board 40 away from the second pad 41 is inserted through the through hole 131 of metal casing 10 and extended outward. The stainless steel sheet 42 on FPC board 40 is fixedly connected to the extension 13 of metal casing 10 by spot welding, and multiple solder points 43 are formed on the surface of stainless steel sheet 42. Finally, waterproof adhesive is filled into dispensing groove 102 to form waterproof component 50.

[0044] This utility model is a male connector with an IPX5 waterproof rating.

[0045] The key design feature of this utility model is:

[0046] By placing a hot melt adhesive layer in and fitting it into the mounting groove, one end of the PCB board is stacked on the upper surface of the hot melt adhesive layer and located in the mounting groove. The other end of the PCB board is placed in the dispensing groove after passing through the mounting hole. The second pad and the first pad are electrically connected by pulse hot pressing. One end of the FPC board with the second pad is placed in the dispensing groove, and the other end of the FPC board extends outward to form a base. The waterproof component is placed in the dispensing groove. The PCB board, FPC board, and waterproof component are embedded and fixed together. In this structure of the male connector, the FPC board has good flexibility and bendability, has a high degree of freedom, is more flexible in installation, improves spatial adaptability, and is more suitable for assembly in three-dimensional space, bringing convenience to users. In addition, it effectively enhances the waterproof performance of the male connector, and the structural sealing performance is better, preventing external liquids from flowing into the connector from the gap between the metal shell and the PCB board, ensuring the normal operation of the machine equipment, improving the safety performance during use, improving product quality, extending the product's service life, and meeting current needs.

[0047] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A waterproof male connector with an FPC board, characterized in that: It includes a metal shell, a hot melt adhesive layer, a PCB board, an FPC board and a waterproof part; the metal shell includes a base and a tongue plate part extending outward from the base, mounting holes are formed through the front and rear sides of the base, a glue dispensing groove is arranged at the rear end of the base, the glue dispensing groove is communicated with the mounting holes, a mounting groove is arranged on the upper surface of the tongue plate part, and the mounting groove is communicated with the mounting holes; the hot melt adhesive layer is arranged in the mounting groove and is adapted to the mounting groove; one end of the PCB board is stacked on the upper surface of the hot melt adhesive layer and is located in the mounting groove, the other end of the PCB board passes through the mounting hole and is arranged in the glue dispensing groove, a plurality of gold fingers are arranged on the upper surface of the end of the PCB board close to the hot melt adhesive layer, a first solder pad is arranged on the surface of the end of the PCB board far from the hot melt adhesive layer, and the first solder pad is electrically connected to the plurality of gold fingers; a second solder pad is arranged on the surface of one end of the FPC board, the second solder pad is electrically connected to the first solder pad by pulse hot pressing welding, the end of the FPC board with the second solder pad is arranged in the glue dispensing groove, and the other end of the FPC board extends outward from the base; the waterproof part is arranged in the glue dispensing groove, and the PCB board, the FPC board and the waterproof part are integrally fixed by embedding molding.

2. The waterproof male connector with FPC board according to claim 1, characterized in that: Fixing grooves for cooperating with the lock catches of the female socket connector to fix are arranged on the left and right sides of the tongue plate part.

3. The waterproof male connector with FPC board according to claim 2, characterized in that: The fixing groove is of a trapezoidal structure.

4. The waterproof male connector with FPC board according to claim 1, characterized in that: The tongue plate part is of a "convex" shaped structure.

5. The waterproof male connector with FPC board according to claim 1, characterized in that: The mounting groove is square, correspondingly, the hot melt adhesive layer is square, and the end of the PCB board close to the hot melt adhesive layer is arranged to be square.

6. The waterproof male connector with FPC board according to claim 1, characterized in that: The metal shell includes an extension part, the extension part extends backward from the rear end of the base, a stainless steel sheet is arranged on the FPC board, and the stainless steel sheet is fixedly connected to the extension part by spot welding and a plurality of solder joints are formed on the surface of the stainless steel sheet.

7. The waterproof male connector with FPC board according to claim 6, characterized in that: A through hole is formed through the upper and lower surfaces of the extension part, and the other end of the FPC board passes through the through hole and extends outward.

8. The waterproof male connector with FPC board according to claim 1, characterized in that: The upper surface of the PCB board is flush with the upper surface of the tongue plate part, and the plurality of gold fingers protrude from the upper surface of the PCB board.

9. The waterproof male connector with FPC board according to claim 1, characterized in that: The metal shell is a hardware shell.

10. The waterproof male connector with FPC board according to claim 1, characterized in that: An insulating layer is arranged on the outer surface of the metal shell.

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