JPH0424617Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a connector housing that can firmly fix connection terminals therein.

[Prior art] The connection terminals housed in the connector housing are
Conventionally, a flexible locking piece called a case lance provided inside the housing has been used to prevent the housing from slipping out rearward. However, this case lance is not strong enough due to its narrow width.
In some cases, the effect of preventing the case from coming off is small, so the case lance is sometimes replaced with another locking means, or another locking means is sometimes added.

For example, the bottom surface of the connecting terminal on the opposite side of the case lance is sometimes locked with a fixed locking projection protruding from the housing, but the connecting terminal is inserted from the rear of the housing and the connecting terminal is In order to get over the locking protrusion, the connecting terminal needs to be able to move freely to some extent within the terminal housing. However, in order to achieve this movable state, the internal volume of the terminal storage section in the housing must be increased to a certain extent, which poses a problem of adhesion between the housing and the connecting terminals, and furthermore, the large number of connecting terminals In a housing that accommodates the above, the shape of the housing itself must be large, which is particularly unsuitable for a small-sized housing.

[Object of the invention] An object of the invention is to provide a connector housing in which a connecting terminal can be firmly fixed in the housing by a rigid locking protrusion.

[Summary of the invention] The gist of the invention for achieving the above-mentioned object is that, in a housing having a terminal accommodating part for accommodating a connecting terminal, a bottom part of the terminal accommodating part is provided with a structure to prevent the connecting terminal from falling out later. a movable piece having a base integrally connected to the housing body and having a forward-facing tip as a free end is provided on the ceiling of the terminal accommodating portion substantially parallel to the ceiling;
A claw portion is provided at the tip of the movable piece to lock the front end of the connection terminal to prevent it from coming off or coming off;
A connector housing characterized in that a fixing member is inserted between the ceiling part and the movable part of the housing main body, and the movable part presses the connection terminal to engage the connection terminal with the locking protrusion. It is.

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

FIG. 1 is a longitudinal cross-sectional view of a connector housing in which, for example, female connection terminals are accommodated, and FIG. 2 is a perspective view of the main parts. The front end of the connecting terminal 1 has a substantially box-shaped connecting portion 1a into which a mating male connecting terminal fits.
The rear end has a crimp part 1c for connecting the electric wire 1b.
A bent part 1d for locking is provided at the bottom of the center part by cutting a part of the bottom surface. The hole-shaped terminal storage portion 3 into which the connection terminal 1 is inserted from the rear of the housing body 2 made of synthetic resin material is designed to almost surround the connection terminal 1, and the cross section of the portion surrounding the connection portion 1a is approximately square. In addition, the cross section surrounding the crimp portion 1c is approximately circular.
As shown in FIG. 2, a locking projection 5 that fits into the bent portion 1d of the connecting terminal 1 is provided on the bottom 4 of the terminal storage portion 3, and the terminal insertion side of the locking projection 5 is The surface is inclined, and the surface on the opposite side rises from the bottom 4 at a substantially right angle. Further, a movable piece 6 is provided on the ceiling of the terminal storage section 3, and the base of the movable piece 6 is integrally connected to the housing body 2, and the tip thereof is a free end 6a located on the front surface of the housing body 2. It is said that And the free end 6
A claw portion 6b for locking the front end portion of the connecting terminal 1 is provided downward. Further, a front stop portion 7 is provided at the front end portion of the bottom portion 4 for locking the front end portion of the connection terminal 1 forward together with the claw portion 6b. Further, a gap is provided in the upper part of the movable piece 6, and a plate-shaped fixing member 8 is inserted into this gap from the front or from the side so that it can be locked with the housing body 2. There is.

When inserting the connecting terminal 1 into the housing body 2, as shown in FIG. 3, when the connecting terminal 1 is inserted from the rear, the connecting portion 1a of the connecting terminal 1 rides on the locking protrusion 5 and tilts upward. become. At this time, by further pushing in the connecting terminal 1, the front end of the connecting terminal 1 is caught by the claw part 6b of the movable piece 6, preventing it from falling off, and the movable piece 6 is once pushed upward and locked. After the projection 5 is fitted into the bent portion 1d, the connection terminal 1 and the movable piece 6 descend.
Then, by attaching the fixing member 8 to stop the movement of the movable piece 6, the movable piece 6 is pressed against the connection terminal 1 side, and storage of the connection terminal 1 is completed.

If it is necessary to pull out the connecting terminal 1 for some reason, the movable piece 6 can be removed by unlocking the fixing member 8, pulling out the fixing member 8, and then lifting the connecting terminal 1 as shown in FIG. Once lifted, the connecting terminal 1 can be removed from the terminal storage portion 3 by reversing the insertion procedure.

In the embodiment, the housing main body 2 has one
Although the case where one connecting terminal 1 is inserted and attached is shown, it goes without saying that a plurality of connecting terminals 1 can be used, and in this case, the fixing member 8 can be shared.

[Effects of the invention] As explained above, the connector housing according to the invention is reliable during use because the locking protrusion with strong rigidity provided at the bottom of the terminal accommodating portion prevents the connector housing from coming off backwards. It is possible to ensure sex. Moreover, since both the movable piece and the connecting terminal can be tilted when inserting or extracting the connecting terminal into or out of the terminal storage portion, the connecting terminal can be easily engaged with or disengaged from the locking protrusion of the housing.

[Brief explanation of the drawing]

The drawings show one embodiment of the connector housing according to the present invention, in which FIG. 1 is a longitudinal cross-sectional view of a state in which connection terminals are housed, FIG. 2 is a perspective view of the main parts, and FIG. 3 is an explanatory view of the operation. 1 is a connection terminal, 1a is a connection part, 1d is a bent part, 2 is a connector housing, 3 is a terminal storage part,
4 is a bottom, 5 is a locking projection, 6 is a movable piece, 6b is a claw portion, and 8 is a fixed member.

Claims (1)

[Scope of utility model registration request] In the housing having a terminal storage part for storing connection terminals, a locking protrusion is formed on the bottom of the terminal storage part to prevent the connection terminal from falling out later, and a base part is formed on the ceiling of the terminal storage part. A movable piece that is integrally connected to the housing body and has a free end facing forward is provided approximately parallel to the ceiling, and the front end of the connection terminal is locked to the tip of the movable piece so that the front end thereof is A claw part is provided to prevent the connection terminal from coming off or falling off, and a fixing member is inserted between the ceiling part of the housing body and the movable part, and the movable part presses the connection terminal to lock the connection terminal into the locking protrusion. A connector housing characterized in that it engages with the connector housing.