Plug terminal

Abstract

The invention relates to a plug terminal which sequentially defines a contact section capable of being inserted into a socket, a clamped section used for being clamped by an inner frame body and a riveting section used for riveting an electric wire, the neck position of the clamped section comprises a notch which is opened in the side direction, a concave groove is formed in the lower edge of the notch, and the electric wire is inserted into the concave groove through the concave groove. And the bottom edge of the sunken groove is exposed out of the outermost side surface of the inner frame body towards the direction of the contact section. Therefore, when the pressure ejected by the ejection machine is too large and excessive glue materials can overflow out of the range of the originally set frame enclosure of the inner frame body to cause'glue overflowing ', the sunken groove can absorb the part which can be subjected to glue overflowing to form buffering so as to reduce the possibility of'glue overflowing'; in addition, liquidity supplement can be provided through the glue accumulated in the concave groove, and therefore glue shortage of other portions can be avoided.

Description

Technical Field

[0001] The invention relates to an electrical connection element, in particular to an electrical plug terminal. Background Art

[0002] At present, in the industry, plugs with insulating layer terminals are manufactured by the terminal manufacturer who first manufactures a whole bundle of continuous terminals, then injects the aforementioned continuous terminals to cover the insulating layer, and then delivers them to the manufacturer on the demand side. The manufacturer first cuts them into individual insulating terminals and then rivets them to form individual riveted insulating terminals; then the insulating terminals are inserted into an inner frame that has a first, second, or even third perforation, and a live wire insulating terminal and a water wire insulating terminal are respectively inserted into the first perforation and the second perforation, and the ground wire insulating terminal is inserted into the third perforation. At this time, the insulating terminal and the inner frame have been combined to complete the semi-finished plug, and then the semi-finished product is placed in the required plug molding mold for injection molding (molding) to be injected into a whole plug. Or there is another type, that is, instead of delivering a whole roll of insulating terminals, terminals 4 (such as Fig.16 The insulated terminals that have been cut one by one are then delivered to the manufacturers on the demand side.

[0003] However, regardless of the type of production, when the mold of the aforementioned molded inner frame is subjected to the first injection molding to form the "inner frame" with terminals by injection molding, the following problems often occur:

[0004] 1. When the injection pressure of the injection molding machine is too high, it often causes defects commonly known in the industry as "overflowing glue" (i.e., excessive amount of glue is injected, causing the glue to overflow the originally set frame of the inner frame). The overflowed glue part must be manually cut off, which is time-consuming, labor-intensive and uneconomical.

[0005] Second, when the injection pressure of the injection machine is insufficient, it will cause what the industry calls "glue shortage" (i.e. insufficient amount of injected glue resulting in insufficient glue to support the internal frame and resulting in material shortage). Since the internal material shortage is difficult to remedy, it is easy to fail to meet safety regulations. Summary of the invention

[0006] In view of the problems in the prior art, an object of the present invention is to provide a plug terminal.

[0007] The present invention provides a plug terminal, characterized in that: the plug terminal sequentially defines a contact section for being inserted into a socket, a clamped section for being clamped by an inner frame, and a riveted section for riveting a wire, the neck position of the clamped section includes a notch open to one side, wherein the lower edge of the notch forms a recessed groove, and the bottom edge of the recessed groove is the outermost side surface of the inner frame exposed toward the contact section. That is, after the finished plug is injection molded, the recessed groove will also span the inside and outside of the "engagement face" of the finished plug.

[0008] The plug terminal, wherein: the concave groove and a drainage groove pre-arranged in the clamped section form a channel to communicate with each other.

[0009] The plug terminal is provided with a plurality of gripping holes in the clamping section.

[0010] The plug terminal, wherein: the concave groove is in a concave shape with an arc-shaped bottom edge.

[0011] The plug terminal, wherein: the concave groove is a concave shape formed by three folded edges at the bottom edge.

[0012] The plug terminal, wherein: the bottom edge of the recessed groove is in a recessed shape with two sides inclined downward.

[0013] The plug terminal, wherein: the two sides of the bottom edge of the concave groove are respectively a bevel and a concave arc, and the bottom edge is a concave shape of an arc edge.

[0014] When the injection pressure of the injection machine is too high and there is excess glue that may overflow the range originally set by the inner frame and cause "glue overflow", the recessed groove can absorb the possible overflowing glue and reduce the possibility of "glue overflow". In addition, when other parts are short of glue, the glue accumulated in the recessed groove can provide fluidity supplement, thereby avoiding glue shortage in other parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 2 is a three-dimensional diagram of a plug terminal according to an embodiment of the present invention.

[0016] Figure 2 It is a three-dimensional cross-sectional view of the plug terminal combined with the inner frame of the present invention.

[0017] Figure 3 It is a schematic diagram of the plug terminal of the present invention combined with the inner frame.

[0018] Figure 4 It is a three-dimensional diagram of the plug terminal of the present invention.

[0019] Figure 5 It is the second stereoscopic view of the plug terminal of the present invention.

[0020] Figure 6 It is three-dimensional diagram of the plug terminal of the present invention.

[0021] Figure 7 It is four three-dimensional diagrams of the plug terminal of the present invention.

[0022] Figure 8 It is a three-dimensional schematic diagram of the present invention used in a finished plug product.

[0023] Fig. 9 The second perspective view is a schematic diagram of the present invention used in a finished plug product.

[0024] Fig.10 The three dimensional schematic diagrams of the present invention used in a finished plug are shown in FIG.

[0025] Fig.11 The fourth perspective view shows the present invention being used in a finished plug product.

[0026] Fig. 12A It is a schematic diagram of a partially enlarged embodiment of the concave groove of the present invention.

[0027] Fig. 12B It is a schematic diagram of a second embodiment of the present invention showing a partial enlargement of the depressed groove.

[0028] Fig. 12C It is a schematic diagram of a third embodiment of the present invention showing a partial enlargement of the depressed groove.

[0029] Fig.12D It is a schematic diagram of a fourth embodiment of the present invention showing a partial enlargement of the depressed groove.

[0030] Fig.13 It is a schematic diagram of a fifth embodiment of the present invention showing a partial enlargement of the depressed groove.

[0031] Fig.14 It is a three-dimensional schematic diagram of the plug terminal of the present invention combined with another inner frame.

[0032] Fig.15 The second schematic three-dimensional diagram of the plug terminal of the present invention combined with another inner frame.

[0033] Fig.16 It is a schematic diagram of the prior art.

[0034] Explanation of the reference numerals: 1-plug terminal; 11-contact section; 12-clamping section; 121-drainage groove; 122-grasping hole; 13-riveting section; 14-notch; 15-recessed groove; 15A-recessed groove; 15B-recessed groove; 15C-recessed groove; 15D-recessed groove; 2-inner frame; 2A-inner frame; 2B-inner frame; 21-outermost side; 3A-finished plug; 3B-finished plug; 3C-finished plug; 3D-finished plug; 31-fitting surface; 4-terminal. DETAILED DESCRIPTION

[0035] The structure, features and embodiments of the present invention are described below with reference to the accompanying drawings to provide a further understanding of the present invention.

[0036] See also Figure 1 , and please pass Figure 2 and Figure 3 , so as to understand its correspondence and definition relationship with the inner frame 2 described later.

[0037] The present invention includes a plug terminal 1, which defines a contact section 11 for being plugged into a socket, a clamped section 12 for being clamped by an inner frame 2, and a riveted section 13 for riveting a wire. The inner frame can be selected from various types of inner frames 2A and 2B shown in Figures 14 and 15, and each section is relatively defined after the inner frame 2 is set in a later process.

[0038] The neck of the clamping section 12 includes a notch 14 which is open to one side, wherein the lower edge of the notch 14 forms a recessed groove 15. Since the lower edge of the notch 14 forms the recessed groove 15, and the bottom edge of the recessed groove 15 is the outermost side of the inner frame 2A facing the contact section 11. That is, after the finished plug is injection molded, the recessed groove 15 will also be arranged across the inner frame 2A. Figure 8 The inside and outside of the "engagement face" 31 of the finished plug 3A are shown.

[0039] The concave groove 15 can absorb the possible overflowing glue to form a buffer to reduce the possibility of "glue overflow". When other parts are short of glue, the glue accumulated in the concave groove 15 can provide fluidity supplement, so it can also avoid glue shortage in other parts.

[0040] For a preferred embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 3 As shown, the concave groove 15 and a drainage groove 121 pre-set in the clamping section 12 form a channel to communicate. Therefore, the rubber material flows smoothly. Therefore, even when the injection pressure of the injection machine is relatively low, the communication of the channel can reduce the resistance when the rubber material flows, thereby solving the possibility of "lack of glue" due to insufficient pressure. And in a preferred embodiment of the present invention, the plug terminal 1 is provided with a plurality of gripping holes 122 in the clamping section 12 to have a better gripping force on the rubber material.

[0041] See also Figure 4 , Figure 5 , Figure 6 and Figure 71 is a three-dimensional diagram of the plug terminal 1 of the present invention. The plug terminal 1 of the present invention and the recessed groove 15 can be in various shapes without hindering the implementation of the present invention.

[0042] The present invention can be widely used in Figure 8 Finished plug 3A, Fig. 9 Plug finished product 3B Fig.10 Plug finished product 3C or Fig.11 The plug is finished in 3D to expand the adaptability of use.

[0043] See also Fig. 12A As shown in FIG. 1 , in a preferred embodiment of the present invention, the concave groove 15A can also be implemented as a concave shape formed by three folded edges at the bottom edge. Fig. 12B As shown in FIG. 1 , in a preferred embodiment of the present invention, the recessed groove 15B can also be implemented as a recessed shape with a slightly arc-shaped bottom edge. Fig. 12C As shown in FIG. 1 , in a preferred embodiment of the present invention, the concave groove 15C can also be implemented as a concave shape with two sides of the bottom edge inclined downward. Fig.12D As shown, in a preferred embodiment of the present invention, the concave groove 15D can be implemented as a concave shape with two sides being a bevel and a concave arc and the bottom edge being an arc edge. Both can further increase the capacity and further absorb the possible overflow of glue to form a buffer and reduce the possibility of "overflowing glue".

[0044] The above description is a preferred embodiment of the present invention in the industry, and all equivalent changes made according to the present invention are within the scope of the subject matter of the present invention.

Claims

1. A plug terminal, characterized in that: The plug terminal defines in sequence a contact section for being plugged into a socket, a clamped section for being clamped by an inner frame, and a riveted section for riveting an electric wire. The neck position of the clamped section includes a notch open to one side, wherein the lower edge of the notch forms a recessed groove, and the bottom edge of the recessed groove is the outermost side surface of the inner frame exposed in the direction of the contact section.

2. The plug terminal according to claim 1, characterized in that: The concave groove is communicated with a drainage groove pre-arranged in the clamped section through a channel.

3. The plug terminal according to claim 1, characterized in that: The plug terminal is provided with a plurality of grasping fine holes at the clamping section.

4. The plug terminal according to claim 1, characterized in that: The concave groove is in a concave shape with an arc-shaped bottom edge.

5. The plug terminal according to claim 1, characterized in that: The concave groove is in a concave shape formed by three folded edges at the bottom edge.

6. The plug terminal according to claim 1, characterized in that: The bottom edge of the concave groove is concave with two sides inclined downward.

7. The plug terminal according to claim 1, characterized in that: The two sides of the bottom edge of the concave groove are respectively a bevel and a concave arc, and the bottom edge is a concave shape of an arc edge.

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