Producing method of water-proof connector

Abstract

The invention provides a water-proof connector and a producing method thereof. The water-proof connector improves the waterproofness of a molded connector formed by inserting a metallic connector component in electrically insulating resin. The water-proof connector (1) is composed of a molded connector which is obtained in a manner that the metallic connector components forming the connector are inserted in the electrically insulating resin, enabling the electrically insulating resin to be a connector housing. The metallic connector components are a contact point (2) and a metallic cover (3), wherein the contact point (2) enables one end to electrically contact with the contact point of the connector; the metallic cover (3) is composed of metallic tube-shaped body which has an opening at at least one end and has a cavity hole communicated with the opening. The internal part of the opening is an insertion part for other connectors to insert. Water-proof sealants (Li1) for water resistance and sealing are filled in the contact point (2) and between the metallic cover (3) and the connector housing (4).

Description

technical field [0001] The present invention relates to a waterproof connector and its manufacturing method. More specifically, it relates to further improvement of the waterproof performance of a so-called molded connector manufactured by insert-molding metal connector components constituting the connector in an electrically insulating resin. A waterproof connector and a method of manufacturing the same. Background technique [0002] In recent years, electronic information devices such as personal computers, mobile phones, and information terminals have spread rapidly. Various types of electrical connectors are incorporated in these electronic information devices for connection with external devices, and most of them are connectors conforming to the USB standard. Such connectors are usually structured as follows: use a shielding shell to cover the insulating shell with contacts for electromagnetic shielding, so as to prevent noise from invading from the outside to the insi...

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Problems solved by technology

However, this waterproof structure has the above-mentioned problems, and it is necessary to install the cover in the front of the housing and install the sealing member in the rear of the housing in a state where the cover and the sealing member are separated by a predetermined distance, so that the length in the longitudinal direction of the connector becomes long, The installation space in the device housing is thus increased

Moreover, the number of components increases, and the installation on the circuit wiring board must be screwed on the housing, so the installation work is troublesome and time-consuming. On the other hand, the usual installation method of the connector with this cover cannot be adopted, such A method in which a mounting piece is provided on the cover, and the mounting piece is fixed to the circuit wiring board by soldering, etc.)

[0015] Moreover, the connector of the above-mentioned Patent Document 3 uses the terminal protection cover to seal the opening of the device housing where the connector is provided, so when the connector is not in use, the terminal protection cover can be used to seal the connector mounting hole, which can prevent Intrusion of water, etc., however, requires a specially constructed terminal protection cover, and design changes to the device case must be made so that the protection cover can be installed

Therefore, there is a high possibility that the terminal protection cover will be detached from the device case and lost, and it will also lead to an increase in the cost of the overall device

In addition, such a waterproof cover currently needs to be replaced every 2 years for a fee in order to maintain waterproofness.

Therefore, even in the molded connectors of the above-mentioned patent documents, there is a gap between the parts, and water droplets or dust are likely to intrude into the inside from the gap, and in particular, water immersion due to capillarity cannot be prevented.

That is, for a connector assembled in a portable electronic device, a part of the connector, especially the end portion of the metal cover is exposed from the device case, and intrusion may occur from the exposed part due to capillarity.

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