Plug terminal

Abstract

To provide a plug terminal to reduce the possibility of "flash."SOLUTION: A plug terminal 1 defines a contact segment 11 for insertion, a receiving clamping segment 12 for being clamped to the inner frame, and a rivet connection segment 13 for connecting the wiring with a rivet, in the order given. The neck portion of the receiving clamping segment 12 has a notch 14 with one side open, and a recessed slit 15 is formed at the lower end of the notch 14, and the bottom end of the recessed slit 15 is exposed toward the outermost surface. Therefore, when the pressure from an injection machine is excessive and an excess resin material may overflow from the set range of the inner frame and cause "flash", this recessed slit 15 can form a buffer material to reduce the possibility of "flash". Since the fluidity can be replenished through the material accumulated in this recessed slit 15, short shots in other parts can also be prevented.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to an electrical connection part, and in particular to an electrical plug terminal. [Background technology]

[0002] At present, when manufacturing plugs with insulating layer terminals in the industry, the terminal manufacturer first makes a continuous terminal bundle, injects insulating layer onto the continuous terminal to coat it, and provides it to the demanding manufacturer, who then cuts it into individual insulating terminals and wires them individually to form pre-wired insulating terminals, and then passes the insulating terminals through an inner frame already provided with a first, second, or third hole, passes the heat conductor insulating terminal and the water conductor insulating terminal through the first and second holes, respectively, and passes the ground conductor insulating terminal through the third hole. At this point, the insulated terminals and the inner frame are already joined together to complete the plug semi-finished product, which is then inserted into a plug mold to be formed into the required shape by injection molding. Alternatively, rather than delivering the insulated terminals as a single coil, the terminals (4) (see Figure 16) can be provided to manufacturers who require them already cut into individual pieces. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-108622 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in either manufacturing method, as mentioned above, when the injection machine first injects the material into the inner frame mold to form the "inner frame" with the terminals, the following problems often occur: First, excessive pressure from the injection machine can result in a defect commonly referred to as "flash" (i.e., excess injected material spilling out beyond the set limits of the inner frame), and this flash must be removed manually, which is time-consuming and economically inefficient. Secondly, insufficient pressure from the injection machine can result in a condition known as "short shot" (i.e., insufficient material is injected to support the inner frame), which is difficult to repair and can easily lead to non-compliance with safety regulations. [Means for solving the problem]

[0005] In view of the problems in the past, the inventor considered that there should be a plug terminal, and proposed a plug terminal that includes, in order, a contact segment for inserting into a plug socket, a receiving clamping segment for being clamped by an inner frame, and a rivet connection segment for riveting an electric wire, and the neck position of the receiving clamping segment includes a notch that opens in one direction, and a recessed slit is formed at the lower edge of the notch, and the bottom edge of the recessed slit is exposed on the outermost surface facing the inner frame. Therefore, after the plug product is molded, the recessed slit is provided across the "engagement face" of the plug product. Effect of the Invention

[0006] Therefore, if the pressure from the injection machine is excessive and as a result the material may overflow beyond the set range of the inner frame and cause a "flash," this recessed slit will absorb some of the overflowing material, reducing the possibility of a "flash." Even if there are short shots in other parts, the fluidity can be supplemented through the material accumulated in the recessed slit, preventing short shots from occurring in other areas. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a three-dimensional view of a plug terminal according to an embodiment of the present invention. [Diagram 2] 1 is a three-dimensional cross-sectional view of a plug terminal of the present invention coupled to an inner frame; [Diagram 3] 1 is a conceptual diagram of a plug terminal of the present invention coupled to an inner frame. [Figure 4] FIG. 2 is a three-dimensional view of the plug terminal of the present invention; [Diagram 5] 2 is a three-dimensional view of the plug terminal of the present invention; FIG. [Figure 6] 3A to 3D are three-dimensional views of a plug terminal according to the present invention; [Figure 7] 4A to 4C are three-dimensional views of the plug terminal of the present invention; [Figure 8] FIG. 2 is a schematic diagram of a plug product according to the present invention; [Figure 9] 2A to 2C are schematic diagrams showing the construction of a plug product according to the present invention; [Figure 10] 3A to 3D are three schematic diagrams showing the configuration of the present invention when used in a plug product. [Figure 11] 4A to 4C are schematic diagrams showing the construction of a plug product according to the present invention; [Figure 12-1] FIG. 2 is a conceptual diagram of a partially enlarged recessed slit according to a first embodiment of the present invention. [Figure 12-2] FIG. 11 is a conceptual diagram of a second embodiment of the recessed slit of the present invention, partially enlarged. [Figure 12-3] FIG. 11 is a conceptual diagram of a partially enlarged recessed slit according to a third embodiment of the present invention. [Figure 12-4] FIG. 11 is a conceptual diagram of a partially enlarged recessed slit according to a fourth embodiment of the present invention. [Figure 13] FIG. 11 is a conceptual diagram of a partially enlarged recessed slit according to a fifth embodiment of the present invention. [Figure 14] FIG. 1 is a three-dimensional conceptual diagram of a plug terminal of the invention coupled to another inner frame. [Figure 15] FIG. 2 is a schematic three-dimensional view of a plug terminal of the present invention coupled to another inner frame. [Figure 16] FIG. 1 is a conceptual diagram of a prior art. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] The structure, features and embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the correspondence with the inner frame (2) described later and the proposed technology will be explained through the cross sections and concepts of FIG. 2 and FIG.

[0009] The present invention includes a plug terminal (1), which sequentially defines an insertable contact segment (11), a receiving clamping segment (12) for being clamped by an inner frame (2), and a wire rivet connection segment (13). For the inner frame, various typical examples (2A) and (2B) shown in Figures 14 and 15 can be selected, and each segment is a relative proposal after the inner frame (2) is installed in a later process.

[0010] The neck of the receiving clamp segment (12) has a notch (14) open on one side, the lower edge of which forms a recessed slit (15), and the bottom edge of the recessed slit (15) exposes the inner frame (2A) toward the outermost side. That is, after the plug component is molded, the recessed slit (15) is also disposed so as to straddle the inside and outside of the "engagement face" (31) of the plug component (3A).

[0011] The recessed slits (15) can absorb and buffer possible flash parts, reducing the possibility of "flash". Also, even if a short shot occurs in other parts, the adhesive accumulated in the recessed slits (15) can replenish the fluidity, preventing the short shot from occurring in other parts.

[0012] In a more preferred embodiment of the present invention, as shown in Figures 1, 2 and 3, the recessed slit (15) and the receiving clamping segment (12) are connected to a channel together with the pre-installed drain groove (121), so that the material flow is smooth, and even in the case of a small injection pressure, the channel is connected, so that the material flow can reduce the resistance, and the possibility of "short shot" when there is not enough pressure can also be solved. Also, in a more preferred embodiment, the plug terminal (1) is provided with a plurality of gripping slots (122) in the receiving clamping segment (12) to provide better gripping force on materials.

[0013] Figures 4, 5, 6 and 7 are three-dimensional views of the plug terminal (1) of the present invention. The plug terminal (1) and the recessed slit (15) of the present invention can be expressed in various forms.

[0014] The present invention can be widely used in the plug product (3A) as shown in FIG. 8, the plug product (3B) as shown in FIG. 9, the plug product (3C) as shown in FIG. 10, or the plug product (3D) as shown in FIG. 11, thereby expanding the applicability.

[0015] As shown in FIG. 12-1, which is a more preferred embodiment of the present invention, the recessed slit (15A) may be implemented as a recess formed by three folds. FIG. 12-2 is a more preferred embodiment of the present invention, in which the recessed slit (15B) may be implemented in a recessed shape with a slightly arcuate bottom edge. As shown in FIG. 12-3, which is a more preferred embodiment of the present invention, the recessed slit (15C) may be implemented as a two-sided obliquely downward recessed shape. As shown in FIG. 12-4, in a more preferred embodiment of the present invention, the concave slit (15D) may be implemented with two sides being oblique and concave arc, and the bottom edge being concave arc. Both of these can further increase capacity and absorb and buffer possible flash portions, further reducing the likelihood of a "flash."

[0016] As described above, the present invention is industrially useful, has not been published or publicly used before filing, is not publicly known, and is very clear, meets the requirements for a patent, and is applied for a patent according to law. However, as mentioned above, this is only one preferred embodiment of the present invention, and any equivalent modification made within the scope of the claims of the present invention is within the scope that does not deviate from the spirit of the present invention. [Explanation of symbols]

[0017] (1) Plug terminal (11) Contact Segment (12) Clamp segment (121) Drain groove (122) Grip hole (13) Riveted connection segment (14) Notch (15) Recessed slit (15A) Recessed slit (15B) Recessed slit (15C) Recessed slit (15D) Recessed slit (2) Inner frame (2A) Inner frame (2B) Inner frame (21) Outermost surface (3A) Plug products (3B) Plug products (3C) Plug products (3D) Plug Products (31) Fitting surface (4) Terminal

Claims

1. A plug terminal which successively defines an insertable contact segment, a receiving clamping segment which is clamped to an inner frame, and a rivet connecting segment for connecting a wire with a rivet, characterized in that the neck of the receiving clamping segment has a notch which is open on one side, the lower edge of the notch forms a recessed slit, and the bottom edge of the recessed slit is the outermost surface of the inner frame exposed toward the contact segment.

2. 2. The plug terminal of claim 1, wherein the recessed slit and a drain groove pre-formed in the receiving clamp segment form a communicating channel.

3. 2. The plug terminal of claim 1, wherein the receiving clamp segment is provided with a plurality of grip slots.

4. 2. The plug terminal according to claim 1, wherein the bottom edge of the recessed slit is slightly concave in an arc shape.

5. 2. The plug terminal according to claim 1, wherein the bottom edge of the recessed slit has a recessed shape formed by three folds.

6. 2. The plug terminal according to claim 1, wherein the bottom edge of the recessed slit is recessed obliquely downward from two sides.

7. 2. The plug terminal according to claim 1, wherein the bottom edge of the recessed slit has two sides that are obliquely concave and arc-shaped, and the bottom edge has an arc-shaped concave shape.

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