JPH03693Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a connector for electrical connection, and particularly to a connector that is provided with a plurality of terminals and is used to connect a large number of electrical wirings at once.

BACKGROUND OF THE INVENTION Conventionally, electrical connectors have generally been provided with locking means that can be engaged with each other to ensure secure fixation when connected to a mating connector.
As such locking means, locking protrusions are often used on a cantilever or both sides.
For example, as shown in FIGS. 5 and 6, a double-supporting beam-type locking means a provided on the housing body A is inserted into a groove b provided in the inner wall of the mating housing B to be coupled, and is locked. The protrusion c and the locking stepped portion d are engaged and fixed.

However, such a lock mechanism has a complicated shape, and in order to increase the bonding strength sufficiently, the lock part must be enlarged, and if the lock part is to be made smaller, it is necessary to divide the mold into many parts. The dilemma was that the manufacturing costs would increase because the process would become complicated, making it impossible to mold multiple pieces.

Problems to be Solved The present invention focuses on the above-mentioned shortcomings of the conventional technology and attempts to improve them.It achieves miniaturization of the connector, does not increase the molding cost of the housing, and has a locking mechanism. The object of the present invention is to provide a new connector structure with a high-strength locking mechanism.

Means for solving the problem In order to achieve the above purpose, in this invention,
The locking means, which was conventionally provided on the housing body so as to protrude outward, is now provided on the cover of the housing and is formed so as not to protrude outward from the cover. Such a configuration can be realized for the first time in a connector that includes a housing body in which a terminal accommodating chamber is formed with an opening on the side, and a cover having a large area that is attached to the housing body so as to cover the opening. It was.

In other words, the locking connector of the present invention includes a housing body that is partitioned by partition walls provided in parallel between both side walls and has a plurality of terminal accommodating chambers each having an open portion on one side, and a locking mechanism for the housing body. A connector comprising a cover having a means and having a shape capable of covering the opening portion all at once,
The cover is provided with a double-supported beam-like locking means that is formed between parallel slits provided in the front-rear direction and has a locking portion facing outward.

Embodiment Examples of the locking connector of the present invention are shown in FIGS. 1 to 4.

1 is a connector housing main body, and 2 is a cover. The housing body 1 includes terminal accommodation chambers 1a, 1.
a... are divided by partition walls 1b, 1b..., and arranged symmetrically in the vertical direction. These terminal accommodation chambers 1a, 1a...each has an open upper side or lower side, and the cover 2 is
It is attached to cover the open surface.

At the rear end of the cover 2, there is an engagement groove 2a that can be engaged with the locking protrusion 1c on the rear end of the housing body 1.
Further, the front end of the cover 2 is provided with locking claws 2b that can be engaged with the locking steps 1d at the front of the housing body 1. 2c is the pressure contact part 3a of the terminal 3
This is a restraining part for compressing and fixing the part located at the housing end of the electric wire 4 that is press-connected with the wire 4.

The cover 2 has two slits 2d in the front and back direction.
2d are provided in parallel, and a locking member 5 in the form of a beam supported on both sides is formed between them. An engagement protrusion 5a is provided on the upper surface of the central portion of the locking member 5, and a deflection absorbing portion 5b having an inverted U-shaped cross section is provided at the rear, which also serves as an engagement stopper. In addition, 5c is the engagement protrusion 5
5d is a vertical groove provided on the back surface of the locking member 5.

FIG. 3 is a longitudinal cross-section of the assembled connector housing, with the upper half showing a cross section taken along line A in FIG. 2, and the lower half showing a cross section also taken along line B in FIG.

When attempting to connect a connector having the housing main body 1 and cover 2 configured in this manner to the mating connector 6, it is possible to insert the connector while lowering the height of the engaging protrusion 5a by pressing the engaging stopper 5b. (The upper half of FIG. 3 and FIG. 4), the engagement protrusion 5a enters the engagement recess 6b, and the engagement stopper 5
By ceasing to press b, the engagement protrusion 5a is locked to the engagement step 6a. At this time, the engagement stopper 5b is formed to have an inverted U-shaped cross section and can absorb large deflection, and the slit 5c and groove 5
d makes the locking member 5 easy to bend, so that the engagement protrusion 5a and the engagement stepped portion 6a can be easily engaged while maintaining a sufficiently large locking force.

Effects of the Invention As mentioned above, the connector with a lock of the present invention has a double-supported beam-shaped locking member provided within the plane of the housing cover. This is a new type of connector that can be provided for the first time in a connector with a shaped housing cover. This makes it possible to achieve a significant reduction in the size of the connector.

The locking means of the present invention has the advantage that it is easy to attach and detach the connector and exerts a sufficiently large locking force, and that the molding die is not complicated, making it highly mass-producible and economical.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of the locking connector of the present invention, Fig. 2 is a perspective view of its cover, Fig. 3 is a vertical sectional view showing the structure of its connector housing, and Fig. 4 is its locking member. FIG. 3 is a perspective view showing the bent state of the FIG. 5 is a perspective view of an example of a connector provided with a prior art locking means, and FIG. 6 is a sectional view of its housing.

Claims (1)

[Scope of utility model registration request] A housing body having a plurality of terminal accommodating chambers partitioned by partition walls provided in parallel between both side walls and having an open portion on one side, and a locking means for the housing body that locks the open portions together. In the connector, the cover has a lock having a locking portion facing outward and formed between parallel slits provided in the front-rear direction. A connector with a lock characterized by having a means.