Reliable pin header connecting structure

Abstract

The utility model discloses a reliable pin header connecting structure. The reliable pin header connecting structure comprises an insulating body and a plurality of terminals, a clamping groove is formed in the surface of the insulating body; the plurality of terminals are arranged on the insulating body, each terminal comprises a contact part, a fixing part and a welding part which are integrally formed in sequence, the contact part forwards extends out of the insulating body, a fixing hole is formed in the fixing part, the fixing part is positioned in the insulating body, the fixing hole is embedded in the insulating body, and the welding part backwards extends out of the insulating body. The clamping grooves are formed in the surface of the insulating body and matched with the fixing structures of the mold, the terminals face leftwards or rightwards, the mold is not prone to scratching the terminals in the up-down mold closing process, the fixing holes are formed in the fixing parts in a matched mode, the fixing holes are buried in the insulating body, the terminals and the insulating body are matched more firmly and reliably, the terminals are not prone to loosening, and the service life of the terminals is prolonged. And the service life of the terminal is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technology in the field of connectors, in particular to a reliable pin connection structure. Background Art

[0002] A connector is also called a coupler. In China, it is also called a connector and a socket, generally referring to an electrical connector. That is, a device connecting two active devices, transmitting current or signals. The male end and the female end can transmit messages or current after contact, and it is also called a connector.

[0003] Among them, the widely used ones include pin connectors and USB connectors, etc. Pin connectors are widely used in PCB circuit boards in electronics, electrical appliances, and instruments, and have the reputation of universal connectors. The function of this kind of connector is to act as a bridge between the blocked or isolated circuits in the circuit, and to take on the task of current or signal transmission. It is usually used in combination with a female header to form a board-to-board connection; or used in combination with an electronic wire harness terminal to form a board-to-wire connection; it can also be independently used for board-to-board connection. The cooperation between the terminals and the insulating body of the existing pin connectors is not firm and reliable enough. After repeated plugging and unplugging many times, the terminals are prone to loosen, shortening the service life of the connector. Moreover, the molds used for injection molding of pin connectors are all of the structure of upper and lower mold clamping. When the mold is clamped, it is easy to scratch the terminals, thus damaging the terminals. Therefore, it is necessary to propose a new solution to improve the above problems. Content of the Utility Model

[0004] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the utility model is to provide a reliable pin connection structure, which can effectively solve the problems that the cooperation between the terminals and the insulating body of the existing pin connectors is not firm and reliable enough, the terminals are prone to loosen, and the terminals are easily scratched when the mold is clamped, resulting in a short service life of the connector.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A reliable pin connection structure includes an insulating body and a plurality of terminals; a card slot is opened on the surface of the insulating body; the plurality of terminals are all arranged on the insulating body, and the plurality of terminals all include a contact part, a fixing part and a welding part which are integrally formed in sequence. The contact part extends forward out of the insulating body, a fixing hole is opened on the fixing part, the fixing part is located inside the insulating body, the fixing hole is buried inside the insulating body, and the welding part extends backward out of the insulating body.

[0007] As a preferred scheme, card slots are opened on both the upper and lower surfaces of the insulating body. The design of double-sided slotting is convenient for operators to perform snap-fit positioning of the insulating body and the mold.

[0008] As a preferred solution, strip grooves are provided on both the upper and lower surfaces of the insulating body, and the aforementioned card slot is provided at the middle position of the bottom surface of the strip groove, facilitating the operator to position the insulating body.

[0009] As a preferred solution, through holes are provided in the welding portion. When soldering the welding portion, the solder liquid can fill the through holes, making the welding between the welding portion and the external structure more firm and reliable.

[0010] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solutions:

[0011] By providing a card slot on the surface of the insulating body, the card slot cooperates with the fixing structure of the mold, and the orientation of the terminal is left or right. When the upper and lower molds are closed, the mold is not likely to scratch the terminal. Coupled with the fixing holes provided on the fixing portion, and the fixing holes are buried in the insulating body, making the cooperation between the terminal and the insulating body more firm and reliable, and the terminal is not likely to loosen, effectively extending the service life of the terminal.

[0012] To more clearly illustrate the structural features and functions of the utility model, the following will specifically describe the utility model in detail in conjunction with the drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an assembled three-dimensional schematic diagram of a preferred embodiment of the utility model;

[0014] Figure 2 is an assembled three-dimensional schematic diagram of another angle of a preferred embodiment of the utility model;

[0015] Figure 3 is an exploded view of a preferred embodiment of the utility model;

[0016] Figure 4 is a cross-sectional view of a preferred embodiment of the utility model.

[0017] DESCRIPTION OF THE REFERENCE NUMERALS:

[0018] 10. Insulating body 11. Card slot

[0019] 12. Strip groove 20. Terminal

[0020] 21. Contact portion 22. Fixing portion

[0021] 221. Fixing hole 23. Welding portion

[0022] 231. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Please refer to Figures 1 to 4As shown, it shows the specific structure of the preferred embodiment of the present utility model, including an insulating body 10 and a plurality of terminals 20.

[0024] A card slot 11 is provided on the surface of the insulating body 10; in this embodiment, card slots 11 are provided on both the upper and lower surfaces of the insulating body 10. The design of double-sided slotting facilitates the operator to snap-fit and position the insulating body 10 with the mold. Moreover, strip slots 12 are provided on both the upper and lower surfaces of the insulating body 10, and the aforementioned card slot 11 is provided at the middle position of the bottom surface of the strip slot 12, which is convenient for the operator to position the insulating body 10.

[0025] The plurality of terminals 20 are all arranged on the insulating body 10. The plurality of terminals 20 each include a contact portion 21, a fixing portion 22, and a welding portion 23 that are integrally formed in sequence. The contact portion 21 extends forward out of the insulating body 10. A fixing hole 221 is provided on the fixing portion 22. The fixing portion 22 is located inside the insulating body 10, and the fixing hole 221 is buried inside the insulating body 10. The welding portion 23 extends backward out of the insulating body 10; in this embodiment, a through hole 231 is provided on the welding portion 23. When the welding portion 23 is soldered, the solder liquid can fill the through hole 231, making the welding between the welding portion 23 and the external structure more firm and reliable.

[0026] The manufacturing process of this embodiment is described in detail as follows:

[0027] First, place the plurality of terminals 20 in a mold, and form the insulating body 10 by injection molding. After the welding portion 23 is soldered to the external structure, put the fixed insulating body 10 and the plurality of terminals 20 into another injection mold for secondary injection molding, and finally form a pin header connector.

[0028] The design focus of the present utility model is: by providing a card slot on the surface of the insulating body, the card slot cooperates with the fixing structure of the mold, and the orientation of the terminal is left or right. When the upper and lower molds are closed, the mold is not likely to scratch the terminal. Coupled with the fixing hole provided on the fixing portion and the fixing hole being buried inside the insulating body, the cooperation between the terminal and the insulating body is more firm and reliable, the terminal is not likely to loosen, and the service life of the terminal is effectively extended.

[0029] The above is only the preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A reliable pin header connection structure, characterized by: It includes an insulating body and multiple terminals; a card slot is opened on the surface of the insulating body; the multiple terminals are all arranged on the insulating body, and the multiple terminals all include a contact part, a fixing part and a welding part that are integrally formed in sequence, the contact part extends forward from the insulating body, the fixing part is provided with a fixing hole, the fixing part is located in the insulating body, the fixing hole is buried in the insulating body, and the welding part extends backward from the insulating body.

2. The reliable pin header connection structure according to claim 1, characterized in that: The upper and lower surfaces of the insulating body are both provided with card slots.

3. The reliable pin header connection structure according to claim 2, characterized in that: The upper and lower surfaces of the insulating body are both provided with strip grooves, and the aforementioned clamping groove is provided at the middle position of the bottom surface of the strip groove.

4. The reliable pin header connection structure according to claim 1, characterized in that: A through hole is provided on the welding portion.

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