Terminal pin structure

Abstract

The utility model belongs to the field of power supply assembly, and discloses a terminal pin structure, which comprises a plastic body and a metal terminal, the plastic body is provided with a bonding surface, and the bonding surface is provided with a groove which can be filled with bonding glue; the metal terminal comprises a first welding part and a second welding part connected with the first welding part, the first welding part is wrapped in the plastic body, the first welding part is provided with a welding surface, and the welding surface is exposed out of the plastic body. The terminal pin structure provided by the utility model can meet the requirement that more bonding glue can be filled under the condition of small gaps when the terminal pin structure is assembled, so as to increase the bonding strength of the pin; and meanwhile, the problem of pin glue overflowing can be solved, and the requirement for the stability of dispensing equipment is lowered.

Description

Technical Field

[0001] The utility model belongs to the field of power supply assembly, and in particular relates to a terminal pin structure. Background Art

[0002] The existing double-sided plastic encapsulated products need to lead out the functional pins from the side of the product through the terminal. The terminal pins used are usually fitted with the plane of the product body, and no gaps are allowed. This brings challenges to the production process, that is, on the premise of not overflowing the glue and ensuring a clean and tidy appearance, a certain bonding and welding strength must be met. However, in the actual production process, because of the requirement for close fitting, excessive glue application or unstable equipment will cause glue overflow problems.

[0003] We need to satisfy aesthetics, so we cannot apply too much glue; we need to ensure bonding strength, so we cannot apply too little glue. At this point, conflicting demands arise. Utility Model Content

[0004] The utility model aims to overcome the two contradictory defects of glue overflow and insufficient bonding strength in the above-mentioned prior art, and provides a terminal pin solution to solve the problem of glue overflow on product appearance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A terminal pin structure comprises: a plastic body and a metal terminal; the plastic body is provided with a bonding surface, the bonding surface is provided with a groove for filling with adhesive; the metal terminal comprises a first welding part and a second welding part connected to the first welding part, the first welding part is wrapped in the plastic body, the first welding part is provided with a welding surface, and the welding surface is exposed from the plastic body.

[0007] In an optional embodiment, the groove is formed extending along the length direction of the plastic body.

[0008] In an optional embodiment, there are multiple metal terminals, and the metal terminals are arranged at intervals along the length direction of the plastic body.

[0009] In an optional embodiment, when the bonding surface of the plastic body is placed upward, the bonding surface of the plastic body is higher than the metal terminal, and the height difference is greater than 0.3 mm.

[0010] In an optional embodiment, the groove is provided in a region of the plastic body directly opposite to the connection between the first welding portion and the second welding portion.

[0011] In an optional embodiment, the groove is formed along the thickness direction of the plastic body, and the depth of the groove is greater than 0.1 mm.

[0012] The present application also provides a terminal pin structure, which specifically includes: a plastic body and a metal terminal; the metal terminal includes a first welding part and a second welding part connected to the first welding part, the first welding part is wrapped in the plastic body, the first welding part is provided with a welding surface, the welding surface is exposed from the plastic body, and the second welding part is provided with a groove for filling with adhesive on the side close to the bonding surface.

[0013] The beneficial effect of the utility model is that the pin grooves are opened to increase the volume that can be filled with glue, which can not only solve the problem of glue overflow caused by excessive glue, but also increase the bonding strength of the pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the terminal pin structure of the utility model.

[0015] Figure 2 It is a front view of the terminal pin structure of the utility model.

[0016] Figure 3 It is a cross-sectional view of the utility model.

[0017] Figure 4 This is a diagram of the metal terminal structure in the terminal pin structure of the utility model. DETAILED DESCRIPTION

[0018] The present invention and its beneficial effects will be further described in detail below in conjunction with specific implementation methods and drawings of the specification; however, the specific implementation methods of the present invention are not limited thereto.

[0019] refer to Figures 1 to 4 The present application provides a terminal pin structure, which includes: a plastic body 1 and a plurality of metal terminals 2; a bonding surface 11 is provided on the plastic body 1, and a groove 111 for filling with adhesive is provided on the bonding surface 11, the groove 111 extends along the length direction of the plastic body 1, and is in the shape of a long strip, and the groove 111 is formed by a concave arrangement 1 along the thickness direction of the plastic body 1, and the depth of the groove 111 is greater than 0.1 mm; each metal terminal 2 is arranged at intervals along the length direction of the plastic body 1, and the metal terminal 2 includes a first welding portion 21 and a second welding portion 22 connected to the first welding portion 21, the first welding portion 21 is wrapped in the plastic body 1, and the first welding portion 21 is provided with a welding surface 211, and the welding surface 211 is exposed from the plastic body 1. In this embodiment, the second welding portion 22 is a plug-in welding portion; the groove 111 is provided in the area of ​​the plastic body 1 directly opposite to the connection between the first welding portion 21 and the second welding portion 22; when the bonding surface 11 of the plastic body 1 is placed upward, the bonding surface 11 of the plastic body 1 is higher than the metal terminal 2, and the height difference is greater than 0.3 mm, that is, the welding surface 211 of the first welding portion 21 does not exceed the bonding surface 11.

[0020] In other embodiments, the groove 111 may not be disposed on the bonding surface 11 of the plastic body 1 , but may be disposed on a side of the second welding portion 22 close to the bonding surface 11 , that is, a groove is disposed on a side of the second welding portion 22 close to the bonding surface 11 .

[0021] When the terminal pin structure is assembled, the groove 111 is filled with adhesive, and then the terminal pin structure is assembled on the product. At this time, the adhesive is restricted by the groove 111 and will not flow around, thereby achieving an effect of improving the appearance of the glue overflow.

[0022] In addition, due to the provision of the groove 111, the original plane bonding interface is changed, and the adhesive thickness is increased, thereby achieving the effect of enhancing the bonding strength.

Claims

1. A terminal pin structure, characterized in that: include: A plastic body, wherein the plastic body is provided with a bonding surface, and the bonding surface is provided with a groove for filling with bonding glue; The metal terminal comprises a first welding portion and a second welding portion connected to the first welding portion, the first welding portion is wrapped in the plastic body, the first welding portion is provided with a welding surface, and the welding surface is exposed from the plastic body.

2. The terminal pin structure according to claim 1, characterized in that: The groove is formed by extending along the length direction of the plastic body.

3. The terminal pin structure according to claim 2, characterized in that: There are a plurality of metal terminals, and the metal terminals are arranged at intervals along the length direction of the plastic body.

4. The terminal pin structure according to claim 1, characterized in that: When the adhesive surface of the plastic body is placed upward, the adhesive surface of the plastic body is higher than the metal terminal, and the height difference is greater than 0.3 mm.

5. The terminal pin structure according to claim 1, characterized in that: The groove is arranged in a region of the plastic body facing the connection between the first welding portion and the second welding portion.

6. The terminal pin structure according to claim 1, characterized in that: The groove is formed along the thickness direction of the plastic body, and the depth of the groove is greater than 0.1 mm.

7. A terminal pin structure, characterized in that: include: Plastic body; A metal terminal, the metal terminal includes a first welding part and a second welding part connected to the first welding part, the first welding part is wrapped in the plastic body, the first welding part is provided with a welding surface, the welding surface is exposed from the plastic body, and the second welding part is provided with a groove for filling with adhesive on a side close to the bonding surface.

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