Wire end electric connector structure formed by injection molding

Abstract

The utility model provides an injection molding wire end electric connector structure. The injection molding wire end electric connector structure comprises a connecting body, a terminal assembly, a plurality of wires and an injection molding piece, the connecting body is provided with a shell part and a terminal groove seat, an ejection space is arranged in the shell part, the terminal assembly is provided with a terminal seat, a welding plate and a terminal strip, the welding plate and the terminal strip are fixedly combined by the terminal seat, the terminal seat and the welding plate are arranged in the ejection space so that the terminal strip can be arranged on the terminal groove seat, and each lead is provided with an exposed guide connection end. The injection molding piece is formed in the injection space in an injection molding manner; wherein the shell part is provided with a plurality of first limiting structures and a plurality of second limiting structures on the inner wall of the ejection space, the first limiting structures are arranged on the upper inner wall and the lower inner wall of the ejection space, and the second limiting structures are arranged on the two side walls of the ejection space; and the injection molding part is provided with a plurality of first combination parts and a plurality of second combination parts which are combined with the first limiting structures and the second limiting structures respectively.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric connector, in particular to a wire end electric connector structure of injection molding. BACKGROUND

[0002] The existing wire end connector is mainly composed of a connecting joint and a wire joint. In order to increase the structural strength between the wire and the connecting joint, the existing wire end connector also provides a welding end of the wire and the connecting joint to extend into the rear end of the connecting joint, so that the front end of each wire is combined with the connecting joint by a plastic covering injection method.

[0003] However, the existing design is only to make the wire and the connecting joint more firmly combined, that is, one injection molding process is used, which relatively increases the cost and takes time. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a wire end electric connector structure of injection molding, which can combine the connector with the terminal or terminal array and perform an injection molding process on the wire to complete the overall assembly, thereby simplifying the process and reducing the production cost.

[0005] In order to achieve the above purpose, the utility model provides a wire end electric connector structure of injection molding, which comprises a connecting body, at least one terminal assembly, a plurality of wires, and an injection molding piece.

[0006] The connecting body has a shell portion and at least one terminal slot extending from the shell portion, and the shell portion is inwardly recessed at an end face away from the terminal slot to form an injection space; the terminal assembly has a terminal seat and a welding plate and a terminal array fixedly combined with the terminal seat, the terminal seat and the welding plate are arranged in the injection space, the terminal array is arranged in the terminal slot, and the welding plate and the terminal array are electrically connected; each wire has a bare wire end, and each wire is electrically connected to the end of the welding plate corresponding to the wire end; the injection molding piece is formed in the injection space by injection molding; wherein the shell portion is provided with a plurality of first limiting structures and a plurality of second limiting structures on the inner wall of the injection space, the first limiting structures are arranged on the upper and lower inner walls of the injection space, and the second limiting structures are arranged on the two side walls of the injection space, and the injection molding piece has a plurality of first combining portions combined with each first limiting structure and a plurality of second combining portions combined in each second limiting structure. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 It is a partial exploded view of the utility model before injection molding.

[0008] Figure 2 It is a three-dimensional exploded view of the utility model before injection molding.

[0009] Figure 3 The three-dimensional combined schematic diagram after injection molding of the utility model;

[0010] Figure 4 The side schematic diagram of the utility model;

[0011] Figure 5 The Figure 4 5-5 sectional view of the utility model;

[0012] Figure 6 The Figure 4 6-6 sectional view of the utility model;

[0013] Figure 7 The Figure 4 7-7 sectional view of the utility model;

[0014] Figure 8 The Figure 4 8-8 sectional view of the utility model;

[0015] Wherein, the reference signs:

[0016] 1: connecting body

[0017] 10: shell part

[0018] 100: injection space

[0019] 101: horizontal plate

[0020] 102: first limiting structure

[0021] 102a: protruding rib

[0022] 102b: groove

[0023] 103: second limiting structure

[0024] 104: breaking hole

[0025] 11: terminal groove seat

[0026] 2: terminal assembly

[0027] 20: terminal seat

[0028] 21: soldering plate

[0029] 22: terminal row

[0030] 3: wire

[0031] 30: lead end

[0032] 4: injection molding part

[0033] 40: first combining part

[0034] 41: second connecting portion

[0035] 42: block. DETAILED DESCRIPTION

[0036] For further disclosing the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, the drawings are provided for reference and illustration only, and are not intended to limit the present application.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 , which are respectively a partial exploded view and a perspective exploded view of the present application before injection molding, and a perspective assembled view of the present application after injection molding. The perspective assembled view of the present application after injection molding and the perspective exploded view of the present application before injection molding. The present application provides a wire end electrical connector structure of injection molding, which comprises a connecting body 1, at least one terminal assembly 2, a plurality of wires 3, and an injection molding piece 4; wherein:

[0038] As shown in Figure 2 and Figure 3 , the connecting body 1 has a shell portion 10, and at least one terminal slot 11 extending from the shell portion 10. The shell portion 10 is inwardly recessed on an end surface away from the terminal slot 11 to form an injection space 100, so that the terminal assembly 2 and the wire 3 are placed in the injection space 100, and the terminal assembly 2 and the wire 3 are combined and fixed in the shell portion 10 by injection molding. In the embodiment of the present application, at least one horizontal plate 101 can be provided in the shell portion 10 to separate the injection space 100 and accommodate multiple terminal assemblies 2 therein.

[0039] Please refer to Figure 1 together, the terminal assembly 2 has a terminal seat 20, and a soldering plate 21 and a terminal row 22 fixedly combined with the terminal seat 20. The terminal seat 20 and the soldering plate 21 are placed in the injection space 100, and the terminal row 22 is arranged in the terminal slot 11, and the terminal row 22 is electrically connected with the soldering plate 21. The plurality of wires 3 each have a lead end 30 exposed, and the lead end 30 of each wire 3 is electrically connected to the end of the soldering plate 21, for example, by welding the lead end 30 of each wire 3 to the soldering plate 21. In the embodiment of the present application, as shown in Figures 4 to 6 , the number of soldering plates 21 can be increased to two and stacked on top of each other, so that the two soldering plates 21 are electrically connected to the lead ends 30 of the plurality of wires 3; and when the number of terminal rows 22 is multiple, the terminals can be arranged in a staggered manner. In addition, please refer to Figure 1As shown, the terminal assembly 2 is stacked in a top-bottom opposite manner in multiple cases, and a concave-convex surface is provided on the surface of the terminal seat 20 of each other for positioning in the stack.

[0040] Please refer to Figure 4 , Figure 7 and Figure 8 , the utility model mainly puts the terminal assembly 2 and wire 3 into the injection space 100 of the shell part 10 of the connecting body 1, and then combines and fixes the terminal assembly 2 and wire 3 in the shell part 10 by injection molding; at the same time, the shell part 10 is provided with a plurality of first limiting structures 102 and a plurality of second limiting structures 103 on the inner wall of the injection space 100. The first limiting structure 102 is provided on the upper and lower inner walls of the injection space 100 and has a plurality of protruding ribs 102a extending towards the terminal groove seat 11 and a plurality of grooves 102b formed between each protruding rib 102a; and the second limiting structure 103 is provided on the two side walls of the injection space 100 and can be in the form of a groove and extend towards the terminal groove seat 11. Therefore, when the terminal assembly 2 and wire 3 are placed in the injection space 100 of the shell part 10, injection molding can be performed in the injection space 100 to inject plastic, thereby forming the injection molding piece 4 and combining and fixing the terminal seat 20 of the terminal assembly 2 and the lead end 30 of the wire 3 in the injection space 100. As shown in Figure 7 and Figure 8 , the injection molding piece 4 has a plurality of first combination parts 40 combined in the grooves 102b of each first limiting structure 102 and a plurality of second combination parts 41 combined in each second limiting structure 103.

[0041] In addition, please refer to Figure 2 and Figure 3 , the shell part 10 of the connecting body 1 is provided with a break hole 104 communicating with each other on the upper and lower inner walls of the injection space 100, so that a plug 42 is formed in each break hole 104 and combined with the injection molding piece 4 during the injection molding process, thereby increasing the engagement force between the injection molding piece 4 and the shell part 10 and improving the bonding strength.

[0042] Therefore, the wire end electrical connector structure of the utility model can be obtained by the above structure.

[0043] To sum up, only the above is only the preferred embodiment of the present application, not therefore, the patent scope of the present application, so for example, the use of the present application specification and drawings, and equivalent structural changes, are also included in the scope of the present application, please make it clear.

Claims

1. An injection molded wire end electrical connector structure, characterized by: Comprising: a connecting body having a shell portion, and at least one terminal slot extending from the shell portion, and the shell portion is inwardly recessed at an end surface away from the terminal slot to form an injection space; at least one terminal assembly having a terminal seat, and a soldering plate and a terminal row fixedly combined with the terminal seat, the terminal seat and the soldering plate are disposed in the injection space for the terminal row to be arranged in the terminal slot, and the soldering plate and the terminal row are electrically connected; a plurality of wires each having an exposed terminal end, and each of the wires is electrically connected to the end of the soldering plate corresponding to the terminal end; and an injection molding member formed in the injection space by injection molding; wherein the shell portion is provided with a plurality of first limiting structures and a plurality of second limiting structures on the inner walls of the injection space, the first limiting structures are provided on the upper and lower inner walls of the injection space, and the second limiting structures are provided on the two side walls of the injection space, and the injection molding member has a plurality of first combining portions combined with each of the first limiting structures, and a plurality of second combining portions combined in each of the second limiting structures.

2. The structure of the injection-molded electrical connector of the wire end according to claim 1, wherein: wherein the shell portion is provided with a through hole respectively communicating with the upper and lower inner walls of the injection space, and each of the through holes is formed with an embedded block and combined with the injection molding member.

3. The structure of the exit-molded electrical connector of claim 1, wherein: wherein the terminal assembly is a plurality of terminal assemblies.

4. The structure of the exit-molded electrical connector of the wire end according to claim 3, wherein: wherein the terminal assemblies are stacked in an upper-lower opposite manner, and the surfaces of the terminal seats of the terminal assemblies are provided with concave-convex surfaces for positioning.

5. The structure of the exit-molded electrical connector of claim 3 or 4, wherein: wherein the shell portion is provided with at least one transverse plate to separate the injection space for a plurality of terminal assemblies to be arranged therein.

6. The structure of an injection-molded electrical connector for wire termination according to claim 1, wherein: wherein the number of terminal rows of each terminal assembly is a plurality.

7. The structure of an injection-molded electrical connector according to claim 6, wherein: wherein the number of soldering plates of each terminal assembly is two and stacked in an upper-lower manner.

8. The structure of the exit-molded electrical connector of claim 6 or 7, wherein: wherein the terminals of the terminal rows are staggered.

9. The structure of an injection-molded electrical connector for wire termination according to claim 1, wherein: wherein the first limiting structure has a plurality of protruding ribs extending towards the terminal slot, and a plurality of grooves formed between each of the protruding ribs.

10. The structure of the exit-molded electrical connector of claim 1 or 9, wherein: wherein the second limiting structure is a groove type extending towards the terminal slot.

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