CN218731906U - Bury and penetrate terminal fixed knot and construct - Google Patents

Abstract

The utility model discloses an embedded terminal fixing structure, which comprises an embedded terminal and a rubber box combined with the embedded terminal in a sealing way; the embedded terminal comprises an embedding section which is injected into the rubber box, an annular groove used for preventing plugging and unplugging is arranged on the outer surface of the embedding section, and a metal coating used for hermetically connecting the embedded terminal and the rubber box is arranged at the bottom of the annular groove. The utility model is provided with an annular groove which can be fully filled with plastic in the process of the embedding and injection molding and is used for forming an embedded structure between the embedding terminal and the plastic box and preventing the embedding terminal from displacing along the axial direction; by arranging the metal coating and combining the mosaic structure, the bonding force between the outer surface of the embedded terminal and the plastic is increased, so that sealing is realized; prevent turning round the structure through setting up, increased the area of contact between embedding section surface and the gluey box, avoid buryying the terminal and take place rotary displacement. The utility model discloses compare in the mode that glue combines have the advantage of environmental protection, reliable and resistant plug.

Description

Bury and penetrate terminal fixed knot and construct

Technical Field

The utility model relates to a bury and penetrate the injection molding field, concretely relates to bury and penetrate terminal fixed knot and construct.

Background

The embedded terminal of the existing product connector comprises an embedded section, and the embedded section and the rubber box are molded into a whole in an embedded injection molding mode. Referring to fig. 5, the embedded section is provided with a bump structure for preventing the embedded terminal from twisting and axial displacement during plugging. However, the embedded terminal fixing structure can only be applied to the application occasions with lower requirements on the axial torsion resistance and the axial displacement resistance between the embedded terminal and the rubber box.

In addition, since the buried terminal is made of copper material, and the copper material and the plastic cannot be completely bonded without trace, in the conventional injection molding process, a layer of glue (see the region inside the dashed line frame in fig. 5) must be coated on the embedded section where the buried terminal and the plastic are bonded, and the embedded terminal and the plastic are hermetically connected by the glue, so that no risk of air leakage exists at the bonding position of the buried terminal and the plastic. However, because a step of applying glue is involved, the method is labor-consuming and not environment-friendly, and there is a risk that the finished product injection-molded does not meet the air tightness requirement due to glue leakage, and the electrical performance of the connector is reduced.

Disclosure of Invention

The purpose of the invention is as follows: the utility model aims to solve the technical problem that to prior art not enough, provide a bury and penetrate terminal fixed knot and construct, have better plug performance, need not glue simultaneously and combine in order to guarantee the gas tightness.

In order to solve the technical problem, the utility model discloses a bury and penetrate terminal fixed knot and construct. The embedded terminal fixing structure comprises an embedded terminal and a rubber box combined with the embedded terminal in a sealing manner; the embedded terminal comprises an embedded section which is injected inside the rubber box, and an annular groove is formed in the outer surface of the embedded section.

Further, a metal coating is arranged at the bottom of the annular groove.

Preferably, the metal plating layer is a fog tin plating layer.

Further, the number of the annular grooves is more than two.

Preferably, the number of the annular grooves is three.

Optionally, the number of the annular grooves is more than two, and a metal plating layer is arranged at the bottom of each annular groove.

Further, the embedding section still includes prevents turning round the structure, prevent turning round the structure and be located the embedding section surface outside the annular groove.

Optionally, the anti-twisting structure is a knurled structure or a bump structure.

Optionally, a cross-sectional shape of the annular groove in a radial direction thereof is rectangular.

Optionally, the glue box is made of a plastic material.

Has the advantages that:

(1) The utility model discloses in, the terminal is made for metal material to bury, and the embedding section is cylindricly roughly. The utility model discloses be provided with the annular groove, the plastic can be fully inserted at the embedding injection molding in-process to the annular groove to the messenger buries and penetrates the terminal and glue and form mosaic structure between the box, can effectively prevent to bury and penetrate the terminal and take place the displacement along its axial, improves the resistant plug performance of this structure.

(2) The utility model discloses an annular groove bottom is provided with the metal coating that is used for burying to penetrate terminal and gluey box sealing connection, has increased the cohesion between the metal surface and the plastic that bury penetrated the terminal, and then reaches sealed effect. Compare in the technological mode that current product adopted glue to combine, the utility model discloses a metal coating realizes burying the sealing connection between penetrating terminal and the plastic, has avoided leaking the condition emergence that brush glue leads to leaking gas, consequently has more environmental protection and more reliable advantage. The metal plating layer is preferably a fog tin plating layer, the surface of the fog tin plating layer is rough, and the rough surface further increases the binding force between the buried injection terminal and the plastic.

(3) The utility model discloses set up the annular groove more than two, realize that the multistage formula is sealed, further improve the sealing performance and the resistant plug performance of this structure. The processing cost and the improvement of sealing performance of annular groove are considered, and the preferred three of annular groove's quantity.

(4) The utility model discloses set up round annular knurl structure on the embedding section surface in the annular groove outside, increased embedding section surface and glued the area of contact between the box, effectively avoided the terminal of penetrating that buries to take place the ascending rotation of circumferencial direction at the plug in-process to the resistant plug performance of this structure has further been improved.

Drawings

These and/or other advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings and the following detailed description.

Fig. 1 is a schematic structural view of an embedded injection terminal fixing structure after being embedded and injection molded according to an embodiment of the present invention;

fig. 2 is an exploded view of a buried terminal fixing structure shown in fig. 1;

fig. 3 is a partially enlarged view of a buried terminal fixing structure shown in fig. 1;

fig. 4 is a schematic structural diagram of an embedded terminal according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a buried terminal of a conventional product connector.

Detailed Description

The utility model discloses a reference numeral is as follows: the buried terminal 10, the rubber box 20, the embedding section 30, the annular groove 3010, the metal plating layer 3020, the anti-torsion structure 3030 and the gasket 40.

The technical solution of the present invention will be explained in detail with reference to the accompanying drawings.

The utility model provides an embedding terminal fixing structure, which comprises an embedding terminal 10 and a rubber box 20 combined with the embedding terminal 10 in an embedding and injecting sealing way, as shown in figure 1 and figure 2; the embedded terminal 10 comprises an embedded section 30 which is injected inside the rubber box 20, and an annular groove 3010 for preventing plugging is arranged on the outer surface of the embedded section 30.

In the present invention, the embedded terminal is made of metal material (e.g., copper), and the embedded section 30 is substantially cylindrical. The utility model discloses be provided with annular groove 3010, annular groove 3010 can fully insert the plastic in burying injection molding process to the messenger buries and penetrates terminal 10 and glue and form mosaic structure between the box 20, can prevent effectively that to bury and penetrate terminal 10 and take place the displacement along its axial, improves the resistant plug performance of this structure.

In some embodiments of the present invention, the bottom of the annular groove 3010 is provided with a metal plating layer 3020 for sealing connection between the embedded terminal 10 and the plastic box 20.

The utility model discloses an annular groove 3010 bottom is provided with and is used for burying to penetrate terminal 10 and glue box 20 sealing connection's metallic coating 3020, has increased the cohesion between the metal surface of burying penetrating terminal 10 and the plastic, and then reaches sealed effect. Compare in the technological mode that current product adopted glue to combine, the utility model discloses a metal coating 3020 realizes burying the sealing connection between penetrating terminal 10 and the plastic, has avoided leaking the condition emergence that brush glue leads to leaking gas, consequently has more environmental protection and more reliable advantage.

In some embodiments of the present invention, the metal plating layer 3020 is preferably a misted tin plating layer. The method for electroplating the tin-fog plating layer belongs to the prior art, and therefore, the present embodiment is not described in detail.

In this embodiment, the processed annular groove 3010 has a smooth surface, and the misty tin plating layer formed at the bottom of the annular groove 3010 has a rough surface, which further increases the bonding force between the buried injection terminal 10 and the plastic.

In some embodiments of the present invention, referring to fig. 3 and 4, the number of the annular grooves 3010 is two or more.

This embodiment sets up annular groove 3010 more than two, realizes that the multistage formula is sealed, further improves the sealing performance and the resistant plug performance of this structure.

In some embodiments of the present invention, referring to fig. 3 and 4, the number of the annular grooves 3010 is preferably three, so as to take account of the processing cost of the annular grooves and the improvement degree of the anti-plugging capability.

In some embodiments of the present invention, referring to fig. 3 and 4, the embedded section 30 further comprises an anti-twist structure 3030, wherein the anti-twist structure 3030 is located on the outer surface of the embedded section 30 outside the annular groove 3010.

The utility model discloses set up on the embedding section 30 surface in the annular groove 3010 outside and prevent turning round structure 3030 for prevent to bury at the plug in-process and penetrate terminal 10 and take place the displacement at the circumferencial direction.

Alternatively, referring to fig. 3 and 4, the anti-twisting structure 3030 is a knurled structure, and a bump structure in a buried terminal of an existing product connector may also be adopted, see fig. 5. The anti-twist structure 3030 may also be other protruding structures (not shown in the drawings) capable of stopping the displacement of the terminal in the circumferential direction.

The utility model discloses set up round annular knurl structure on the embedding section 30 surface in the annular groove 3010 outside, increased embedding section 30 surface and glue the area of contact between the box 20, effectively avoid buryying terminal 10 and take place the ascending rotation of circumferencial direction at the plug in-process to the resistant plug performance of this structure has further been improved.

Alternatively, referring to fig. 3 and 4, the annular groove 3010 has a rectangular cross-sectional shape in a radial direction thereof.

Optionally, the glue cartridge 20 is made of plastic material.

Referring to fig. 1 and 2, the present invention further provides a gasket 40 connected to the rubber box 20, which is made of a high-elasticity low-stress fast thermosetting silica gel material. The utility model provides a pair of bury and penetrate terminal fixed knot and construct and pass through packing ring 40 and outside casing sealing connection.

The utility model provides a thoughts and method of terminal fixed knot structure are penetrated in embedding, and the method and the way that specifically realize this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary skilled person in this technical field, is not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as with moist decorations the utility model discloses a protection scope. All the components not specified in the present embodiment can be realized by the prior art.

Claims (10)

1. A buried injection terminal fixing structure is characterized by comprising a buried injection terminal (10) and a rubber box (20) combined with the buried injection terminal (10) in a sealing manner; the embedded terminal (10) comprises an embedded section (30) which is injected into the rubber box (20), and an annular groove (3010) is formed in the outer surface of the embedded section (30).

2. The embedded terminal fixing structure as claimed in claim 1, wherein a bottom of the annular groove (3010) is provided with a metal plating layer (3020).

3. The embedded terminal fixing structure as claimed in claim 2, wherein the metal plating layer (3020) is a misted tin plating layer.

4. The embedded terminal fixing structure as claimed in claim 1, wherein the number of the annular grooves (3010) is two or more.

5. The embedded terminal fixing structure as claimed in claim 4, wherein the number of the annular grooves (3010) is three.

6. The embedded terminal fixing structure as claimed in claim 1, wherein the number of the annular grooves (3010) is two or more, and a metal plating layer (3020) is provided on the bottom of the annular groove (3010).

7. The buried terminal fixing structure according to any one of claims 1 to 6, wherein the embedding section (30) further comprises a torsion preventing structure (3030), and the torsion preventing structure (3030) is located on the outer surface of the embedding section (30) outside the annular groove (3010).

8. The embedded terminal fixing structure as claimed in claim 7, wherein the anti-twisting structure (3030) is a knurled structure or a bump structure.

9. The embedded terminal fixing structure as claimed in claim 8, wherein the annular groove (3010) has a rectangular shape in cross section in a radial direction thereof.

10. The embedded terminal fixing structure of claim 9, wherein the plastic box (20) is made of plastic material.

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