JPH024453Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a waterproof connector that can lock connection terminals from the outside of a connector housing and has a waterproof structure.

[Prior Art] Generally, a connector accommodates a connecting terminal and is fitted with a mating connector to connect the connecting terminals, but due to a reaction when mating with the mating terminal, the connecting terminal easily slips out of the housing. Normally, a leaf piece is protruded from the inside of the connector and locked onto a part of the connecting terminal to prevent it from coming off later, but this alone may not be enough. Therefore, a locking member may be further inserted from the outside of the connector housing to fix the connection terminal.

However, since such a connector that is locked from the outside has an opening on the outside of the connector housing, water easily enters through the opening, making it extremely difficult to provide waterproofing capability.

[Object of the invention] An object of the invention is to provide a waterproof connector having a means for locking contact terminals from the outside of the housing, which has sufficient waterproof ability through reliable sealing.

[Summary of the invention] The gist of the invention to achieve the above objectives is as follows:
An inner cylinder for accommodating a connection terminal and an outer cylinder for fitting with a mating housing are integrally assembled, and an opening is provided in a side surface of the inner cylinder covered by the outer cylinder,
A locking member is inserted through the opening to lock the connection terminal in the inner cylinder, and an annular seal member is provided around the inner cylinder to make the opening into which the locking member is inserted liquid-tight. This waterproof connector is characterized by being coated with

[Embodiments of the invention] The invention will be described in detail based on illustrated embodiments.

Figure 1 is a cross-sectional view of the male connector, and shows the inner cylinder 1.
A connecting terminal 2a is inserted into a, and this connecting terminal 2a is connected to a leaf piece 3 extending from the inner cylinder 1a.
It is fixed by a. An opening 4a is provided on the side surface of the inner cylinder 1a, and a separate locking member 5a is inserted into the inner cylinder 1a through this opening 4a, thereby further securely locking the connecting terminal 2a. . An outer cylinder 6a is provided around the inner cylinder 1a, and the inner cylinder 1a and the outer cylinder 6a are locked to each other by locking members 7a and 8a provided on the inner cylinder 1a and the outer cylinder 6a, respectively. It has an integrated structure.

In order to provide a waterproof structure, a cylindrical sealing member 10a is fitted between the electric wire 9a connected to the connecting terminal 2a and the inner cylinder 1a. Furthermore, the inner cylinder 1a
An annular sealing member 11a is disposed between the outer cylinder 6a and the outer cylinder 6a, and this sealing member 11a tightly covers the opening 4a of the inner cylinder 1a from the outside of the locking member 5a. A plurality of annular ridges 12a make liquid-tight contact with the inner surface of the tube 6a.

FIG. 2 is a sectional view of the female connector, which has almost the same structure as the male connector shown in FIG. 1, except that the locking member 5b inserted into the opening 4b is integrated with the inner cylinder 1b. , can be freely folded into the interior via the hinge portion 13b. In addition, the opening 4b
A gap is provided between the sealing member 11b covering the outer cylinder 6b and the outer cylinder 6b, so that the outer cylinder 6a of the male connector is inserted when the male connector is fitted.

In order to connect the connecting terminals 4a and 4b, both connectors are combined, and the outer cylinder 6a of the male connector is connected to the inner cylinder 1b and outer cylinder 6b of the female connector.
Get in between. The inner surface of the outer cylinder 6a and the outer ridge 12b of the sealing member 11b provide a seal during connection, and water will not enter from the outside and wet the connection terminals 2a and 2b.

In fact, as soon as the connectors are fitted together, they are locked by a locking mechanism (not shown) to prevent them from being accidentally separated.

[Effects of the Invention] As explained above, the waterproof connector according to the present invention can realize a reliable waterproof structure while preventing the connecting terminal from coming off later by inserting the locking member from the outside of the housing.

[Brief explanation of the drawing]

The drawings show an embodiment of the waterproof connector according to the present invention, and FIG. 1 is a sectional view of the male connector;
FIG. 2 is a sectional view of the female connector. Code 1: Inner cylinder, 2: Connection terminal, 3: Leaf piece, 4: Opening, 5: Locking member, 6: Outer cylinder, 9: Electric wire, 10, 11: Seal member ,1
2...ridge portion, 13...hinge portion.

Claims (1)

[Claims for Utility Model Registration] 1. An inner cylinder for accommodating a connection terminal and an outer cylinder for fitting with a mating housing are assembled together, and a side surface of the inner cylinder covered by the outer cylinder is An opening is provided, a locking member is inserted through the opening to lock the connection terminal in the inner cylinder, and an annular seal member is provided around the inner cylinder and the locking member is inserted. A waterproof connector characterized by a liquid-tight coating on the opening. 2. The waterproof connector according to claim 1, wherein a ridge is provided on the outer surface of the sealing member.