JPH0247570Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Field of Application) The present invention relates to a connector in which a terminal is fixedly caulked to the tip of a lead wire in a terminal insertion portion of a housing and is held in a non-removal state.

(Prior art) Conventionally, in this type of connector, a housing made of an insulating material is provided with an engaging pawl by integral molding, and this engaging pawl is engaged with an engaging portion of a terminal inserted into a terminal insertion portion. The structure was such that the terminal was held in the terminal insertion portion in a state where it would not come off.

(Problem to be solved by the invention) However, since the terminal is held only by the engaging claws, the holding is no longer sufficient due to the material becoming stale, and the terminal comes off from the terminal insertion part. There were flaws.

Therefore, an object of the present invention is to provide a connector that can securely hold a terminal in a terminal insertion portion by providing a separate holding means for holding the terminal in a state in which it does not come off in addition to the engaging claw. It is on offer.

[Structure of the idea]

(Means for Solving the Problems) The present invention is designed to insert the terminal into the outer periphery of the tip of the lead wire in conjunction with an engaging claw provided on the terminal or the housing so as to hold the terminal in the terminal insertion portion in a state where it does not come off. A sealing member that is in fluid-tight pressure contact with the inner periphery of the terminal insertion portion is fixed, an annular groove is provided on the outer periphery of the sealing member, and a through hole passing through the inner and outer periphery of the terminal insertion portion is provided opposite to this groove. The present invention is characterized in that a stopper member is provided which is inserted into the through hole and engaged with the groove to hold the terminal in the terminal insertion portion in a state where the terminal is not removed, separately from the engagement claw.

(Function) According to the above means, the terminal is held in the terminal insertion portion by the retaining action of both the engaging claw and the stopper member, so that the terminal is held more reliably than in the prior art.

(Example) An example of the present invention will be described below with reference to the drawings. Reference numeral 1 designates a housing made of plastic, which is an insulating material, and has a terminal insertion portion 2 formed therein, which has an insertion port 2a formed at one end and a protrusion port 2b formed at the other end. 3 is a lead wire, and a metal terminal 5 is caulked and fixed to the tip of the lead wire with a rubber plug 4 as a ring-shaped sealing member inserted in advance. The terminal 5 is caulked to the conductor portion 3a of the lead wire 3 at its intermediate portion, and holds the rubber stopper 4 by caulking at the right end in FIG. This rubber stopper 4
Two annular grooves 4a are formed on the outer periphery of the groove. The terminal 5 and rubber plug 4, which are caulked and fixed to the tip of the lead wire 3 in this way, are inserted into the insertion port 2.
It is inserted into the terminal insertion section 2 from a. 6 is located inside the terminal insertion part 2 and the housing 1 is
This is the engaging claw integrally molded into the terminal 5.
The terminal 5 is prevented from coming off from the terminal insertion portion 2 by being engaged with an engagement convex portion 5a as an engagement portion provided on the terminal insertion portion 2. Reference numeral 7 denotes two through holes each located near the insertion port 2b and formed to penetrate the inner and outer peripheral parts of the terminal insertion part 2;
These are the grooves 4a at the right end in FIG. 1 of the rubber stopper 4.
is facing. Reference numeral 8 denotes a substantially U-shaped stopper member that is integrally molded on the outer periphery of the terminal insertion portion 2 via a thin wall portion 8a, and this is fitted into the inner periphery of the terminal insertion portion 2 through the through hole 7 and fitted into the groove 4a. The stopper member 8 fixes the rubber stopper 4, and the stopper member 8 locks the terminal 5 into the terminal insertion portion 2 so as not to come off. Note that in the above configuration, 9 is a cover integrally molded with the housing 1.

According to the above configuration, the terminal 5 is held in the terminal insertion portion 2 by the retaining action of both the engagement claw 6 and the stopper member 8, so that it is possible to maintain the terminal 5 in the terminal insertion portion 2 by the retaining action of both the engagement claw 6 and the stopper member 8. Compared to this, the holding is more reliable, and even if the holding action of the engaging claws 6 is no longer sufficient due to material settling, the terminal 5 is reliably prevented from coming off from the terminal insertion part 2. .

In the above configuration, the housing 1 is provided with the engaging pawl 6 and the terminal 5 is provided with the engaging portion 5a, but conversely, the housing 1 is provided with the engaging portion and the terminal 5 is provided with the engaging pawl. You may also do so.

[Effect of idea]

As is clear from the above description, the present invention provides another means for holding the terminal in a non-removal state in addition to the engaging claw, that is, the sealing member is engaged with an annular groove provided in the sealing member to move the sealing member to the terminal insertion portion. Since the terminal is provided with a stopper member for holding the terminal in a state where it does not come off, an excellent effect is achieved in that the terminal can be reliably held in the terminal insertion portion.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being an exploded perspective view. In the drawing, 1 is a housing, 2 is a terminal insertion part, 3 is a lead wire, 4 is a rubber plug (sealing member),
4a is a groove, 5 is a terminal, 6 is an engaging claw, 7 is a through hole, and 8 is a stopper member.

Claims (1)

[Scope of utility model registration request] a housing made of an insulating material and having a terminal insertion part with an insertion opening formed at one end; a terminal that is caulked to the tip of a lead wire and inserted into the terminal insertion part from the insertion opening; an engaging claw that is engaged with the engaging portion of the terminal or the housing and holds the terminal in the terminal insertion portion in a state where it does not come off; a seal member that is inserted into the terminal insertion portion and is in liquid-tight pressure contact with the inner periphery of the terminal insertion portion; an annular groove provided on the outer periphery of the seal member; A through-hole formed to penetrate the inner and outer peripheries of the insertion portion, and a state in which the terminal is inserted into the through-hole and engaged with the groove to prevent the terminal from coming out from the terminal insertion portion separately from the engaging claw. A connector comprising a stopper member for holding the connector.