JPH0317421Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose 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 in a manner that it cannot be removed.

(Prior Art) Conventionally, in this type of connector, an engaging claw is provided on a housing made of an insulating material, and the engaging claw is engaged with an engaging hole of a terminal inserted into a terminal insertion portion to insert the terminal. It was configured to be held in place in the terminal insertion portion in a manner that prevents it from coming 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 invention] (Means for solving the problem) The connector of the invention includes a housing made of an insulating material that has a cylindrical terminal insertion part integrally molded, and a housing made of an insulating material that is fixedly caulked to the tip of the lead wire and the terminal insertion part is fixed to the tip of the lead wire. a terminal to be inserted into the inner periphery of the terminal insertion portion; and a terminal that is integrally molded on the inner periphery of the terminal insertion portion and is engaged with an engaging portion of the terminal to prevent the terminal from coming out of the terminal insertion portion. an engaging claw for holding, a through hole formed in the peripheral wall of the terminal insertion part, and an integrally molded on the outer periphery of the terminal insertion part corresponding to the through hole, and protruding from the through hole into the terminal insertion part when closed. a lid member having a claw portion that is inserted into the outer periphery of the terminal insertion portion to seal a gap with a mating connector, and the lid member is closed by the insertion, and the claw portion is engaged with the terminal; Separately from the engaging claw, a sealing member that holds the terminal in a non-removal state in the terminal insertion portion, and a locking portion provided on the outer periphery of the terminal insertion portion and locking the seal member in a non-removal state. It is characterized by its configuration.

(Function) According to the above means, the terminal is held in the terminal insertion part by the retaining action of both the engaging claw and the claw part of the lid member, so the terminal is held more securely than in the conventional method. Become something. Furthermore, since the sealing member is locked by the locking part on the outer periphery of the terminal insertion part, even if force is applied to the sealing member in the direction of pulling it out from the terminal insertion part, the sealing member will shift and the lid member will not open. There is no possibility that it would have happened.

(Example) An example of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a housing made of plastic, which is an insulating material, and has a cylindrical insertion portion 2 that is open at one end and closed at the other end. Inside the insertion portion 2, a socket 3a is formed at one end. A rectangular cylindrical terminal insertion portion 3 having an insertion port 3b formed at the other end is formed integrally with the housing 1.
Further, on the outer periphery of the terminal insertion portion 3, a locking portion 3c is provided protrudingly located deep inside the insertion receiving portion 2 and for locking a sealing member to be described later. A terminal 4 is caulked and fixed to the tip of the lead wire 5, and is inserted into the terminal insertion portion 3 through the insertion port 3b. Reference numeral 6 denotes an engaging claw that is positioned on the inner circumferential portion of the terminal insertion portion 3 and is integrally formed with the housing 1. This is engaged with an engaging hole 4a as an engaging portion provided in the terminal 4, and the terminal 4 is inserted into the engaging hole 4a. is prevented from coming off from the terminal insertion portion 3. Reference numeral 7 denotes a lid member integrally molded with the housing 1 and located on the outer periphery of the terminal insertion portion 3. A claw portion 7a is protruded from the tip of the lid member 7, and a through hole is provided in the terminal insertion portion 3 opposite to the claw portion 7a. A hole 8 is bored. Reference numeral 9 denotes a sealing member positioned on the outer periphery of the terminal insertion portion 3 and inserted into the inner part of the insertion receiving portion 2. By inserting this, the lid member 7 is moved in the direction of arrow A as shown in FIG. It is pressed and displaced to be closed, and the claw portion 7a is projected into the terminal insertion portion 3 through the through hole 8 and engaged with the intermediate stepped portion 4b of the terminal 4. Further, at this time, the sealing member 9 is locked to prevent it from coming off from the terminal insertion portion 3 by the locking portion 3c. The sealing member 9 seals the male housing 10 and the housing 1 when the male housing 10 serving as the mating connector is fitted to the inner circumference of the insertion receiving part 2.
This acts to create a watertight seal between the Moreover, when the male housing 10 is fitted to the inner peripheral part of the insertion receiving part 2 in this way, the male housing 10
A male terminal 11 provided in the terminal 4 is inserted through the socket 3a and electrically connected to the terminal 4.

According to the above structure, the terminal 4 is held in the terminal insertion portion 3 by the retaining action of both the engagement claw 6 and the claw portion 7a of the lid member 7, so that the conventional structure having only the engagement claw It is more secure in holding compared to other terminals, and even if the holding action of the engaging claws 6 is no longer sufficient due to material settling, the terminal 4 will definitely not come off from the terminal insertion part 3. Prevented. By the way, if a force is applied to the sealing member 9 in the direction of pulling it out of the terminal insertion part 3, for example, when the terminal insertion part 3 is pulled to the right in the figure, if the sealing member 9 has a structure without the locking part 3c, the sealing member 9 will There is a possibility that the cover member 7 may shift to the left and open. On the other hand, in this embodiment, since the seal member 9 is locked to the locking portion 3c, the seal member 9 does not shift on the outer peripheral surface of the terminal insertion portion 3, so that the lid member 7 is not opened. There is no possibility that this will happen.

[Effects of the Invention] As is clear from the above description, the connector of the present invention provides the following excellent effects.

That is, the terminal is held by the engaging claw formed in the terminal insertion part, and the terminal is prevented from coming out into the terminal insertion part separately from the engaging claw by the claw part of the lid member that is closed by the insertion of the seal member. Since the terminal is held in place, the terminal is reliably held in the terminal insertion portion by the locking action of both the engaging claw and the claw portion.

Further, since the seal member is locked by the locking portion on the outer periphery of the terminal insertion portion, it is possible to prevent the seal member from shifting and to reliably maintain the closed state of the lid member.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, and FIG. 2 is a longitudinal sectional view showing a state before insertion of a sealing member. In the drawings, 1 is a housing, 3 is a terminal insertion part, 3c is a locking part, 4 is a terminal, 6 is an engaging claw, 7 is a lid member, 7a is a claw part, 8 is a through hole, and 9 is a sealing member. .

Claims (1)

[Scope of utility model registration request] a housing made of an insulating material having a cylindrical terminal insertion part integrally molded; a terminal caulked to the tip of a lead wire and inserted into the inner periphery of the terminal insertion part; and integral with the inner periphery of the terminal insertion part. an engaging pawl that is provided by molding and is engaged with the engaging portion of the terminal to hold the terminal in the terminal insertion portion in a state where it does not come off;
A lid member having a through hole formed in a peripheral wall of the terminal insertion portion, and a claw portion integrally formed on the outer periphery of the terminal insertion portion in correspondence with the through hole and protruding from the through hole into the terminal insertion portion when closed. and is inserted into the outer periphery of the terminal insertion portion to seal the space between the mating connectors, as well as to close the lid member by the insertion, engage the claw portion with the terminal, and separate it from the engaging claw. A connector comprising: a sealing member that holds the terminal in a non-removal state in the terminal insertion portion; and a locking portion provided on the outer periphery of the terminal insertion portion and locking the seal member in a non-removal state.