CN102157836B - Pin header splicing unit and pin header - Google Patents

Abstract

The invention discloses a pin header splicing unit which comprises a plastic support and at least one pin header terminal fixed on the plastic support. A guide pillar and a guide pillar hole used for realizing orientation in splicing are respectively arranged on the front side and the rear side of the plastic support, and the guide pillar is vertically arranged; a hook and a hanging table used for realizing buckling and limiting in splicing are respectively arranged on the front side and the rear side of the plastic support, and the hook is vertically arranged; a lug boss and a limiting step used for realizing blocking and limiting in splicing are respectively arranged on the front side and the rear side of the plastic support; and the limiting step and the hanging table are respectively arranged at the upper part and the lower part of the plastic support. The invention also discloses a pin header using the splicing unit. The technical scheme has the advantages that the structure is simple and skillful, the splicing and the fixation are firm and are not easy to separate, the row number of pin header can be conveniently increased or changed without unmolding for injection molding and manufacturing once again, and the like.

Description

Pin splicing units and pin headers

technical field

The invention belongs to the technical field of electrical connectors, and in particular relates to a splicable pin row splicing unit and a pin row composed of a plurality of the splicing units.

Background technique

At present, the connector structures used in the electronics industry are mostly male-female terminal structures with pin headers and socket connections, the main purpose of which is for electrical connection or signal transmission. In the prior art, the structure of the pin header is relatively simple, and it is directly manufactured by pressing metal parts into the injection molded part. If the user changes the number or quantity of the pin header, the supplier has to re-open the mold and inject the needle header, which not only increases the manufacturing cost , and may directly lead to the loss of small orders.

Contents of the invention

In order to solve the above-mentioned technical problems, one of the objects of the present invention is to provide a needle row splicing unit, which has a structure for mutual splicing and fixing, and can easily increase or change the number of needle rows without re-opening the mold for injection molding manufacture.

The second object of the present invention is to provide a needle row, which is formed by splicing and assembling a plurality of above-mentioned needle row splicing units.

In order to achieve the above-mentioned purpose, the present invention has adopted following technical scheme:

A needle splicing unit, comprising a plastic bracket and at least one pin terminal fixed on the plastic bracket, the front side and the rear side of the plastic bracket are respectively provided with a guide post and a guide post hole for guiding when splicing, the The guide post is vertically arranged; the front side and the rear side of the plastic bracket are respectively provided with a hook and a hanging table for fastening and limiting when splicing, and the hook is vertically arranged; the front side of the plastic bracket and the rear side are respectively provided with a boss and a limit step for blocking and limiting when splicing; the limit step and the hanging platform are respectively arranged on the upper part and the lower part of the plastic bracket.

In the above scheme, when splicing two identical splicing units, use matching guide posts and guide post holes to realize guided insertion, and use matching hooks and hanging table buckles to realize the insertion of two splicing units on the guide posts For the limit in the opposite direction, the matching boss and limit step are used to block the limit to realize the limit in the insertion direction of the guide post of the two splicing units. Through the above structure, the two splicing units can be aligned in three dimensions and six directions. Positioning, so that the two are fixed as a complete one after splicing, and will not be easily damaged or opened from any direction. By analogy, more pin header splicing units can be spliced in the same way. Of course, each pin header splicing unit can be provided with one pin header terminal, or multiple pin header terminals, and the multiple pin header terminals can be arranged in a row or in an array. The cross-sections of the guide post and the hook can be circular, elliptical, trapezoidal or other shapes.

The installation direction of the above-mentioned splicing structure is not directly related to the extension direction of the pin header terminal. Therefore, the pin header terminal can be arranged horizontally or vertically, that is, the extension direction of the pin header terminal is parallel to the extension direction of the guide post or Can be vertical. However, considering the limited spacing between adjacent pin header terminals and the difficulty of demoulding during injection molding, it is preferable that the pin header terminals are vertically arranged, that is, the extension direction of the pin header terminals is parallel to the extension direction of the guide post, which can reduce the manufacturing cost. The difficulty of mold and demoulding, make full use of space.

Preferably, the front side and the rear side of the plastic bracket are respectively provided with a recessed part and a protruding part correspondingly, the guide post is provided in the recessed part, and the guide post hole is provided in the protruding part. In this way, the radial shear force exerted on the guide post by the two needle splicing units can be reduced or avoided through the cooperation of the recessed part and the protruding part on the two pin splicing units, so as to avoid their breakage and loss of fixed splicing.

As a preference, the boss is arranged on the upper end of the hook, and the lower end of the hook is provided with a protrusion that is buckled with the hanging platform; A groove, the upper end of the groove is provided with the limit step, and the lower end of the groove is provided with the hanging platform. The convex platform and the hook are set at the same position, and the limit step, the hanging platform and the groove are set at the same position, which is convenient for forming and reduces the difficulty of manufacturing; the groove is set to accommodate the hook, which can avoid the exposed damage of the hook or affect the use.

Preferably, the boss is arranged on both sides of the upper end of the hook so that the cross section of the upper end of the hook is T-shaped, and the limiting step is arranged on both sides of the upper end of the groove so that the concave The cross section of the upper end of the groove is T-shaped. The upper end of the hook and the upper end of the groove adopt a matching T-shaped design, which can not only realize the original limiting function, but also realize the positioning of the two splicing units in the horizontal plane.

Preferably, the guide posts and guide post holes are arranged at the left and right ends of the plastic bracket, and the hooks are arranged at the middle section of the plastic bracket.

A needle row, comprising at least a needle row splicing unit A and a needle row splicing unit B that are spliced together, and both the needle row splicing unit A and the needle row splicing unit B are the above-mentioned needle row splicing units.

As a preference, the guide post on the needle splicing unit A is inserted into the guide post hole on the needle splicing unit B, the hook on the needle splicing unit A is buckled with the hanging table on the needle splicing unit B, The boss on the needle splicing unit A and the limit step on the pin splicing unit B block the limit.

Since the present invention adopts the above technical scheme and adopts the splicing connection method, the single row of pins are spliced one by one according to the needs of users, which can not only meet the different needs of customers, but also reduce the manufacturing cost of products, and the cost of mosaic injection molding The advantages are more obvious, and the molding cycle can be greatly shortened. In the above scheme, the matching guide post and guide post hole are used to realize the guided insertion, and the matching hook and the hanging table are used to realize the limit of the two splicing units in the opposite direction of the guide post insertion. The platform and the limit step block the limit to realize the limit in the insertion direction of the guide post of the two splicing units. Through the above structure, the two pin splicing units can be positioned in three dimensions and six directions, so that they are fixed as a complete piece after splicing. One. It has many advantages such as simple and ingenious structure, firm splicing and positioning, not easy to separate, can easily increase or change the number of needle rows, and does not need to re-open the mold for injection molding.

Description of drawings

Fig. 1 is one of the three-dimensional views of the splicing unit of the present invention;

Fig. 2 is the second perspective view of the splicing unit of the present invention;

Fig. 3 is the third perspective view of the splicing unit of the present invention;

Fig. 4 is the fourth perspective view of the splicing unit of the present invention;

Fig. 5 is the fifth perspective view of the splicing unit of the present invention;

Fig. 6 is a schematic diagram of splicing of the splicing unit of the present invention.

Detailed ways

The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

Example 1:

A needle splicing unit as shown in Figures 1 to 5, comprising a plastic bracket 2 and four rows of pin terminals 1 fixed on the plastic bracket 2, the front side and the rear side of the plastic bracket 2 are respectively A guide post 22 and a guide post hole 25 for guiding when splicing are provided, and the guide post 22 is vertically arranged; the front side and the rear side of the plastic bracket 2 are respectively provided with clips for fastening and limiting when splicing. Hook 21 and hanging platform 262, described grab 21 is vertically arranged; The front side and rear side of described plastic bracket 2 are respectively provided with the boss 211 and the limit step 261 that are used for splicing and realize blocking limit; The step 261 and the hanging platform 262 are arranged on the upper part and the lower part of the plastic bracket 2 respectively.

In this embodiment, the pin row terminal 1 is arranged vertically; as shown in FIG. 2 , the hook 21 includes a rod body extending out of the plastic bracket body, the root of the rod body is connected with the plastic bracket, and a protrusion 212 is provided on the top of the rod body; The front side and the rear side of the plastic bracket 2 are respectively provided with a recessed part 23 and a protruding part 24 correspondingly, the guide post 22 is arranged in the recessed part 23, and the guide post hole is provided on the protruding part 24 25. The boss 211 is arranged on the upper end of the hook 21, and the lower end of the hook 21 is provided with a protrusion 212 that is fastened with the hanging platform 262; as shown in Fig. 3 and Fig. 4 , the plastic bracket 2 is provided with a groove 26 for accommodating the hook 21 during splicing, the upper end of the groove 26 is provided with the limit step 261, and the lower end of the groove 26 is provided with the hanging platform 262; as shown 5, the bosses 211 are arranged on both sides of the upper end of the hook 21 so that the cross section of the upper end of the hook 21 is T-shaped, and the limiting steps 261 are arranged on both sides of the upper end of the groove 26. Therefore, the cross section of the upper end of the groove 26 is T-shaped; the guide post 22 and the guide post hole 25 are arranged at the left and right ends of the plastic bracket 2 , and the hook 21 is arranged at the middle section of the plastic bracket 2 .

The splicing of the above needle splicing units is shown in Figure 6, in which a 3×4 pin row is shown. The needle row includes a spliced needle row splicing unit A, a needle row splicing unit B and a needle row splicing unit C. Stitching unit. Wherein, the guide post on the needle splicing unit B is inserted into the guide post hole on the needle splicing unit A, and the hook on the needle splicing unit B is buckled with the hanging table on the needle splicing unit A, so The boss on the needle splicing unit B and the limit step on the needle splicing unit A block the position; the guide post on the needle splicing unit C is inserted into the guide post hole on the needle splicing unit B, and the The hook on the needle splicing unit C is fastened to the hanging platform on the needle splicing unit B, and the boss on the needle splicing unit C and the limit step on the needle splicing unit B block the position.

Claims (8)

1. A pin header splicing unit, characterized in that it includes a plastic bracket (2) and at least one pin header terminal (1) fixed on the plastic bracket (2), the front side and the rear of the plastic bracket (2) The sides are respectively provided with a guide post (22) and a guide post hole (25) for guiding when splicing, and the guide post (22) is vertically arranged; A hook (21) and a hanging platform (262) for fastening and positioning are realized during splicing, and the hook (21) is vertically arranged; the front side and the rear side of the plastic bracket (2) are respectively provided with Realize the boss (211) and the limit step (261) of blocking limit; The limit step (261) and the hanging platform (262) are respectively arranged on the upper part and the lower part of the plastic bracket (2). 2. The pin header splicing unit according to claim 1, characterized in that the pin header terminal (1) is arranged vertically. 3. A needle splicing unit according to claim 2, characterized in that, the front side and the rear side of the plastic bracket (2) are respectively provided with a concave part (23) and a protruding part (24) correspondingly , the guide post (22) is provided in the recessed part (23), and the guide post hole (25) is provided in the protruding part (24). 4. A needle row splicing unit according to claim 3, characterized in that, the boss (211) is arranged on the upper end of the hook (21), and the lower end of the hook (21) is arranged on the upper end of the hook (21). The card protrusion (212) buckled by the hanging table (262); the plastic bracket (2) is provided with a groove (26) for accommodating the hook (21) when splicing, and the groove (26 ) is provided with the limit step (261), and the lower end of the groove (26) is provided with the hanging platform (262). 5. A needle splicing unit according to claim 4, characterized in that, the boss (211) is arranged on both sides of the upper end of the hook (21) such that the upper end of the hook (21) The cross-section is T-shaped, and the limiting steps (261) are arranged on both sides of the upper end of the groove (26) so that the cross-section of the upper end of the groove (26) is T-shaped. 6. A needle row splicing unit according to claim 5, characterized in that, the guide posts (22) and guide post holes (25) are arranged at the left and right ends of the plastic bracket (2), and the hooks (21) is arranged on the middle section of plastic support (2). 7. A needle row, characterized in that it at least includes a spliced needle row splicing unit A and a needle row splicing unit B, both of which are as claimed in any one of claims 1 to 6 header splicing unit as described in item. 8. A needle row according to claim 7, characterized in that, the guide post (22) on the needle row splicing unit A is inserted into the guide post hole (25) on the needle row splicing unit B, and the row The hook (21) on the needle splicing unit A is fastened to the hanger (262) on the needle splicing unit B, and the boss (211) on the needle splicing unit A is connected to the limit on the needle splicing unit B. The position step (261) blocks the limit.

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