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Plastic coating process of connecting piece

A technology for connectors and metal connectors, applied in the field of plastic encapsulation of connectors, can solve the problems of complex process, low insulation performance of insulating parts, large volume, etc., and achieve the effect of simplifying volume, improving pressure resistance, and environmental protection of materials

Pending Publication Date: 2021-07-16
宁波禾岷科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a plastic overmolding process for connectors to solve the problems of low insulation performance, large volume and complicated process of the insulating part of the metal connector in the terminal mentioned in the background art

Method used

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  • Plastic coating process of connecting piece

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Embodiment 1

[0023] A plastic overmolding process for connectors, including metal connectors to be overmolded, such as figure 1 As shown, the metal connector includes a conductive part 1 and an insulating part 2, and the steps of overmolding the insulating part 2 are as follows:

[0024] S1. Encapsulation, encapsulating the conductive part 1 of the metal connector with high-temperature-resistant tape to form an encapsulation layer, encapsulating it with a plastic wrapping machine, and forming a complete cut surface at the end surface of the encapsulation layer;

[0025] S2. Preheating, put the metal connector into the preheating box to be heated evenly, the temperature is 150°C, and the preheating time is 25 minutes;

[0026] S3. Dip molding, send the preheated metal connector into the dipping machine for dipping. The dipping machine is equipped with epoxy resin powder, and the insulating part 2 of the metal connector is repeatedly immersed and leached at least twice. In the epoxy resin p...

Embodiment 2

[0039] A plastic overmolding process for connectors, including metal connectors to be overmolded, such as figure 1 As shown, the metal connector includes a conductive part 1 and an insulating part 2, and the steps of overmolding the insulating part 2 are as follows:

[0040] S1. Encapsulation, encapsulating the conductive part 1 of the metal connector with high-temperature-resistant tape to form an encapsulation layer, encapsulating it with a plastic wrapping machine, and forming a complete cut surface at the end surface of the encapsulation layer;

[0041] S2. Preheating, put the metal connector into the preheating box to be heated evenly, the temperature is 150°C, and the preheating time is 25 minutes;

[0042] S3. Dip molding, send the preheated metal connector into the dipping machine for dipping. The dipping machine is equipped with epoxy resin powder, and the insulating part 2 of the metal connector is repeatedly immersed and leached at least twice. In the epoxy resin p...

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Abstract

The invention discloses a plastic coating process of a connecting piece. A metal connecting piece with a plastic coating is provided; the metal connecting piece comprises a conductive part and an insulating part. A plastic coating finished product is obtained after the steps of plastic coating preheating, plastic dipping and high-temperature curing. Accordion to the plastic coating process of the invention, a plastic dipping mode for sequentially dipping the insulating part of the metal connecting piece with increasing depths, epoxy resin powder is used for replacing existing PVC, the problem that the metal connecting piece is poor in pressure resistance can be solved, meanwhile, the production cost is reduced; the effect that the thickness of a plastic coating film of the insulating part is decreased gradually from the bottom to the top can be achieved through the plastic dipping mode, the pressure resistance of the plastic coating film is guaranteed, meanwhile, the size of a whole wiring terminal can be reduced. The materials adopted by the process are environment-friendly and will not pollute the environment.

Description

technical field [0001] The invention relates to the technical field of electrical connector production and manufacturing, in particular to a plastic wrapping process for producing a connector of a metal part in a terminal block. Background technique [0002] The terminal block is an accessory product used to realize electrical connection. The internal metal connector includes an insulating part and a conductive part. The above two parts are directly related to the quality of the terminal block and determine the insulation performance and wire performance of the terminal block respectively. Among them, the role of the insulating part is to keep the metal connectors in the correct position, to insulate the connectors, and between the connectors and the U-shaped card slot housing, and to provide precise positioning for the conductive parts. At the same time, it also has the functions of installation and positioning, locking and fixing on the equipment. Therefore, the selection ...

Claims

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Application Information

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IPC IPC(8): H01R43/18
CPCH01R43/18
Inventor 励岷翰
Owner 宁波禾岷科技有限公司