TW202042452A - Electrical connector - Google Patents

Abstract

The invention discloses an electrical connector, including a terminal module, a housing and a waterproof glue. The terminal module includes an insulating body and a plurality of conductive terminals. The conductive terminal includes a holding section, a contact section and a welding section. The holding sections are fixed to the insulating body. The waterproof glue seals the gap between the terminal module and the housing. The holding sections of the conductive terminals pass through the waterproof glue backward. The holding sections are coated with nano-coating layer or coating with water resistance. In the present invention, because the outer surface of the holding section is coated with a nano-coating that enhances the binding force between the conductive terminal and the insulating body or a coating that enhances the water resistance of the conductive terminal, during the preparation of the electrical connector, the waterproof glue will not flow into the contact portions of the conductive terminals.

Description

Electrical connector

The invention relates to an electrical connector.

For previous related technology patents, please refer to the electrical connector announced in Mainland China Utility Model Patent CN207925719U. The electrical connector includes an insulating body provided with a tongue plate and a conductive terminal. The conductive terminal has a mating surface exposed to the tongue plate. The contact part, the mating surface of the tongue and the contact part of the conductive terminal are coated with a waterproof coating that will be partially removed after being scratched. It can effectively prevent the contact parts of the conductive terminals from corroding and causing the contact parts of adjacent conductive terminals to short-circuit and catch fire.

However, in the industrial production process, the electrical connector needs to be heated during the preparation process. After the heating process, the liquid waterproof glue is poured. The heating process will create a gap between the conductive terminal and the insulating body. When the waterproof glue is poured, The waterproof glue will flow into the front end of the conductive terminal (the part that is in contact with the mating connector) through the gap, and affect the signal transmission of the electrical connector.

Therefore, there is an urgent need for a new electrical connector to improve the above problems.

The object of the present invention is to provide an electrical connector which can improve the waterproof function.

In order to solve the above technical problems, the present invention adopts the following technical solutions: an electrical connector including a terminal module, a shell sleeved on the terminal module, and waterproof glue, the terminal module including an insulating body and fixed at The plurality of conductive terminals of the insulating body, the conductive terminal includes a holding part, a contact part extending forward from the holding part, and a welding part extending backward from the holding part, the holding part is fixed to the insulating body, so The waterproof glue seals the gap between the terminal module and the housing, the holding part of the conductive terminal passes through the waterproof glue backward, and the outer surface of the holding part is coated with a nano coating or a coating with water resistance. Floor.

Compared with the prior art, the present invention has the following beneficial effects: because the outer surface of the conductive terminal holding portion is coated with a nano coating that enhances the bonding force between the conductive terminal and the insulating body or a coating that enhances the water resistance of the conductive terminal, Ensure that in the process of preparing the electrical connector, the waterproof glue will not flow into the contact part of the conductive terminal.

Hereinafter, specific implementations of the electrical connector 100 of the present invention will be described in conjunction with the first to eighth figures. The port where the electrical connector 100 and the mating connector (not shown) are plugged into is defined as a plug end. Defining the plug-in end is the front end and the plug-in direction is the front and back direction.

Please refer to the first to eighth figures, the electrical connector 100 of the present invention includes a terminal module 1, a grounding member installed on the terminal module 1, a shell sleeved on the terminal module 1 3. A waterproof ring 4 surrounding the front end of the housing 3, a shielding rear housing 5 fixed at the rear end of the terminal module 1, and waterproof glue 6, the waterproof glue 6 sealing the terminal module 1 and the housing The gap between 3.

As shown in FIGS. 4 to 8, the terminal module 1 includes an insulating body 11 formed of plastic material, a plurality of conductive terminals 12 and a metal shield sheet 13 held in the insulating body 11.

The insulating body 11 includes a base 111, a docking portion 112 extending forward from the base 111, and a mounting portion 113 extending rearward from the base 111. The docking portion 112 is provided with two upper and lower rows adjacent to the base 111. The step portion 114 of the cloth and the tongue portion 115 located between the two step portions 114, the tongue portion 115 protrudes forward from the step portion 114. The base 111 is provided with a buckling groove 1111 for holding the grounding member 2. Both sides of the mounting portion 113 are respectively provided with clamping blocks 1131 protruding laterally, and an insertion groove 1132 recessed downward from the upper surface of the mounting portion 113, please refer to the fourth figure for details.

The conductive terminal 12 includes a holding portion 121, a contact portion 122 extending forward from the holding portion 121, and a welding portion 123 extending backward from the holding portion 121. The holding portion 121 is fixed to the insulating body 11, specifically, the holding portion 121 is fixed in the base 111, the mounting portion 113, and the docking portion 112 is located between the step portions 114. The contact portion 122 is exposed to the mating portion 112 and located in front of the step portion 114. The waterproof glue 6 is located between the base 111 and the mounting portion 113. The holding portion 121 of the conductive terminal 12 passes through the waterproof glue 6 backward. The outer surface of the holding portion 121 is coated with a coating, and the coating is a nano-coating 7 or a water-resistant coating, and the above-mentioned coating surrounds the holding portion 121 in a circle. It should be noted that, in the present invention, the holding portion 121 only needs to be coated with a nano-coating 7 or a water-resistant coating near the interface between the insulating body 11 and the waterproof glue 6. In order to facilitate the application of the nano coating 7 or the coating with water resistance, in this embodiment, the entire conductive terminal 12 is coated with a coating. It should be noted that in the process of preparing the electrical connector 100, it is necessary to dry the terminal module 1 and then pour liquid waterproof glue. In order to improve production efficiency and shorten the drying time, it is necessary to increase the drying time. When the drying temperature is too high, there will be a gap between the conductive terminal 12 and the insulating body 11. When the liquid waterproof glue is poured, the waterproof glue will flow into the conductive terminal 12 exposed to the butting portion 112 through the gap. The contact portion 122 affects the signal transmission of the electrical connector 100. In this embodiment, the nano-coating 7 is preferably coated. The following are all introduced with the nano-coating 7. However, the present invention is not limited to the nano-coating. As long as it can be achieved when baking the terminal module 1 at a high temperature, no gap can be generated between the conductive terminal 12 and the insulating body 11.

The outer surface of each conductive terminal 12 includes opposite upper and lower surfaces 124 and 125 and two side surfaces 126 connecting the upper and lower surfaces 124 and 125. The upper surface 124 of the contact portion 122 is exposed to the mating portion 112, The nano-coating 7 is coated on the upper and lower surfaces 124 and 125 and the two side surfaces 126 of the holding portion 121. In order to facilitate the application of the nano coating 7, the entire conductive terminal 12 is coated with the nano coating 7. In the present invention, it is not limited to the technical solution of coating the nano-coating 7 on the integral holding portion 121 or the integral conductive terminal 12, but can also be used for holding in the base portion 111 and between the step portion 114 and the tongue 115. The holding portion 121 is partially coated with the nano coating 7 as long as the effect of the present invention is achieved.

In the present invention, the nano coating 7 is obtained by immersing the conductive terminal 12 in a solution containing nano particles, and then drying. Wherein, the components of the nano particles are inorganic materials and organic materials.

The grounding member 2 has a ring shape and is fixed at the front end of the base 111. The grounding member 2 is provided with a locking portion 21 to be locked with the locking groove 1111 of the base 111.

The housing 3 is fixed to the outer edge of the base 111 and surrounds the docking portion 112, and a docking cavity 31 for a common docking connector (not shown) is formed between the housing 3 and the docking portion 112.

The shielding rear shell 5 includes a flat plate portion 51 and side plate portions 52 extending downwardly from both lateral sides of the flat plate portion 51. The shielding rear shell 5 is covered on the mounting portion 113 of the insulating body 11. The side plate portion 52 is provided with a notch 521, and the clamping block 1131 on the mounting portion 113 is clamped in the notch 521. The flat plate portion 51 is provided with an insertion portion 511 formed by stamping, and the insertion portion 511 is inserted into the insertion opening 1132 of the installation portion 113.

In summary, the beneficial effect of the electrical connector 100 of the present invention is that the outer surface of the conductive terminal 12 holding portion 121 is coated with a nano coating 7, which can make the conductive terminal 12 and the The insulating bodies 11 are more closely bonded, so that when the terminal module 1 is dried at a high temperature, there will be no gap between the conductive terminals 12 and the insulating body 11, so as to ensure that when the liquid waterproof glue is poured, The waterproof glue will not flow into the contact portion 122 exposed on the mating portion 112. In this way, upgrading the existing drying at low temperature for 1.5 hours to drying at high temperature for 10 minutes not only improves production efficiency, but also reduces the manpower and material resources required for production, thereby reducing costs. The water-resistant coating makes the surface of the conductive terminal 12 water-resistant to prevent the diffusion of the liquid waterproof glue, improve the yield of the prepared product, and ensure the quality of the product.

It should be pointed out that the above descriptions are only the best embodiments of the present invention, not all of them. Any equivalent changes made by those skilled in the art to the technical solutions of the present invention by reading the description of the present invention are all of the present invention. Covered by the request.

100: electric connector combination 1: terminal module 11: Insulating body 111: Base 1111: buckle groove 112: docking part 113: mounting part 1131: clamping block 1132: Insertion groove 114: Step 115: Tongue 12: Conductive terminal 121: Holding part 122: Contact part 123: Welding part 124: Upper surface 125: lower surface 126: side surface 13: Metal mask sheet 2: Grounding piece 21: Lock part 3: Shell 31: Docking cavity 4: Waterproof ring 5: Cover the rear shell 51: Flat part 511: Insertion part 52: Side plate part 521: gap 6: waterproof glue 7: Nano coating

The first figure is a perspective view of the electrical connector of the present invention; The second figure is a perspective view of the first figure from another angle; The third figure is a three-dimensional exploded view of the first figure; The fourth figure is a partial three-dimensional exploded view of the third figure; The fifth figure is a partial three-dimensional exploded view of the fourth figure from another angle; The sixth figure is a three-dimensional view of the conductive terminal and the mask sheet; The seventh figure is the cross-sectional view of the first figure along the broken line Ⅶ-Ⅶ; and The eighth figure is a cross-sectional view of the first figure along the broken line Ⅷ-Ⅷ.

no

111: base

113: Installation Department

114: Step

115: tongue

121: Holding Department

122: contact part

123: Welding Department

13: Metal mask sheet

3: shell

31: Docking cavity

4: Waterproof ring

5: Cover the back shell

6: Waterproof glue

7: Nano coating

Claims (10)

An electrical connector, including: The terminal module includes an insulating body and a plurality of conductive terminals held on the insulating body, the conductive terminals including a holding part, a contact part extending forward from the holding part, and a welding part extending backward from the holding part , The holding part is fixed to the insulating body; The shell is sleeved outside the terminal module; and Waterproof glue to seal the gap between the terminal module and the housing; Wherein, the holding part of the conductive terminal passes through the waterproof glue backward, and the outer surface of the holding part is coated with a nano coating or a coating with water resistance. The electrical connector according to claim 1, wherein the holding portion is coated with the above-mentioned coating only at the junction between the insulating body and the waterproof glue, and the above-mentioned coating surrounds the holding portion. The electrical connector according to claim 1, wherein the entire conductive terminal is coated with the above-mentioned coating. The electrical connector according to claim 1, wherein the insulating body includes a base, a mating part extending forward from the base, and a mounting part extending backward from the base, and the mating part is provided adjacent to the base In the stepped portion, waterproof glue is located between the base and the mounting portion, the contact portion is exposed at the mating portion and located in front of the stepped portion, and the holding portion is fixed in the base and the mounting portion. The electrical connector according to claim 4, wherein the outer surface of each of the conductive terminals includes opposite upper and lower surfaces and two side surfaces connecting the upper and lower surfaces, and the upper surface of the contact portion is exposed at the mating portion , The nano coating is coated on the upper and lower surfaces and both sides of the holding part. The electrical connector according to claim 1, wherein the nano coating is obtained by immersing the conductive terminal in a solution containing nano particles, and then drying. The electrical connector according to claim 6, wherein the composition of the nano particles is an inorganic material and an organic material. The electrical connector according to claim 1, wherein the electrical connector includes a shielding rear shell, and the shielding rear shell covers the mounting portion. The electrical connector according to claim 4, wherein the electrical connector includes a ring-shaped grounding member, and the grounding member is installed on the base. The electrical connector according to claim 4, wherein the housing is fixed to the outer edge of the base and surrounds the mating portion.

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