JPS5834712Y2 - waterproof connector housing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector housing, and particularly to a waterproof connector housing.

Waterproof connectors have traditionally been used as needed, but aside from their performance during use, there have been difficulties in their assembly process.

That is, in the conventional waterproof connector housing, for example, the first
As shown in the figure, a cylindrical base body 1 made of an insulating material has holes 3 for accommodating a plurality of connection terminals 2, and a cylindrical bushing accommodating portion 4 is provided at the rear thereof.

This bushing storage part 4 is made of an elastic material such as rubber, and has a bushing 7 provided with an insertion hole 6 for passing a conductor 5 therethrough.
are fitted, and the inner surface of the storage section 4 and the bushing 7 are connected to each other.
Due to its elasticity, it has a structure that allows for liquid-tight contact.

Therefore, when assembling, first insert the connecting terminal 2 to which the conducting wire 5 is connected into the bushing 7, and then insert the connecting terminal 2 into the receiving hole 3.
However, if the bushing 7 is located near the connecting terminal 2, it is troublesome to attach the connecting terminal 2 to the base body 1 and to fit the bushing 7 into the base body 1 at the same time. There is.

Therefore, the bushing 7 is lowered backwards with the conducting wire 5 inserted through it, and the connecting terminal 2 is fixed in the housing hole 3.Then, while the bushing 7 is slid in the direction of the connecting terminal 2 relative to the conducting wire 5, It must be pushed within 4.

This operation is extremely troublesome due to the frictional resistance between the bushing 7 and the plurality of conductive wires 5, and it also has the drawback that pushing the bushing into the storage portion 4 requires considerable effort.

The purpose of the present invention is to eliminate the above-mentioned drawbacks and provide a waterproof connector housing that can be easily assembled without relative movement between the bushing and the conductor. At least one of the pair of connector housings includes a substantially cylindrical internal insulating member for fixedly accommodating a plurality of connection terminals in the axial direction; an elastic insulating member made of rubber or the like having a substantially short cylindrical shape and having a plurality of insertion holes in the axial direction for fluid-tightly inserting the conductive wire connected to the terminal and connected to the rear end portion of the internal insulating member; a substantially cylindrical cylinder disposed around the continuum of the internal insulating member and the elastic insulating member, axially engaged and fixed to the internal insulating member, liquid-tightly joined to the elastic insulating member, and liquid-tightly fitted to the mating housing; It is characterized by comprising an external insulating member having a shape.

The present invention will be explained in detail based on the embodiments shown in FIG. 2 and below.

Figure 2 shows the female type 1 of the waterproof connector housing according to the present invention.
FIG.

Substrate 1 made of approximately cylindrical synthetic resin and having electrical insulation properties
1 is provided with an accommodation hole 13 for accommodating a plurality of connection terminals 12 in the axial direction, and the connection terminals 12 are respectively locked by locking portions 14 so as not to move backward with respect to the base body 11. ing.

A bush 16 made of an elastic material such as rubber and having a slightly larger outer diameter than the base 11 is arranged in parallel at the rear end 15 of the base 11. An insertion hole 18 through which the conductor 17 is inserted is provided for each conducting wire 17, similar to that shown in FIG.

Further, an electrically insulating exterior body made of synthetic resin is provided around the continuum of the base body 11 and the bushing 16, and the base body 11 and the exterior body 19 are fixed by a connecting part 20, and the bush 16 The joint 21 between the outer body 19 and the outer body 19 has a liquid-tight structure due to the elasticity of the bush 16.

Incidentally, a bellows-shaped uneven portion is provided on the outer peripheral portion of the bushing 16 that joins with the insertion hole 18 and the exterior body 19, so as to increase the liquid-tight effect.

Further, the exterior body 19 includes a lid portion 2 that covers the front surface portion 22 of the base body 11.
3 is provided, and this lid part 23 is provided with a through hole 24 for inserting the insertion connection terminal from the mating connector, and as well as guiding the individual insertion connection terminal, the connection terminal 12 is It plays the role of fixing it so that it does not move forward.

Further, the exterior body 11 is provided with an engaging portion 25 for engaging with a claw of a mating connector, and is configured to be locked with the mating connector.

To assemble this connector housing, first, a plurality of connection terminals 12 to which conducting wires 17 are connected are inserted into the bushes 16 for the required length, and then the connection terminals 12 are inserted into the accommodation holes 13 of the base body 11 and fixed. The relative positional relationship between the base body 11 and the bushing 16 is as shown in the longitudinal sectional view of FIG.

Then, the exterior body 19 is inserted from the front part 22 on the side of the base body 11, and the bushing 16 is fitted together with the base body 11 into the exterior body 19, thereby completing the assembly.

FIG. 3 shows a longitudinal sectional view of a male mold 30 of another type of connector housing that is paired with this connector housing according to the present invention.

This connector housing is attached to, for example, a panel 31 via a bushing 32, and the outer surface of the panel 31 is waterproof.

When the female mold 10 shown in FIG. 2 is inserted into the male mold 30, the insertion connection terminals 33 are inserted into the connection terminals 12 in the connector housing of the female mold 10, and an electrical connection is established.
The claws 34 of the male die 30 are engaged with the engaging portions 23 of the female die 10 to complete locking, and the male die 30 and the female die 10 will not easily come off.

The fitting part between the female mold 10 and the male mold 30 is waterproofed between the base body 35 of the male mold 30 and the exterior body 19 of the female mold 10 via the O ring 36 provided on the base body 35 of the male mold 30. It is done in

Therefore, once this fitting is achieved, no water can enter into the connector from the outer surface of the panel 31.

In the embodiment of the present invention, only the female type connector housing has the configuration of the present invention, but it goes without saying that this configuration may also be used for the male type.

As explained above, the waterproof connector housing according to the present invention has an inner insulating member, an outer insulating member, and an elastic insulating member, whereas the conventional one has a structure consisting of two members, the base and the bushing. Since the structure consists of three insulating members, there is no need to slide the elastic insulating member against the conductor when fitting the external insulating member and the elastic insulating member, and processing of the elastic insulating member during assembly is extremely easy. This has the advantage of greatly improving assembly efficiency.

[Brief explanation of drawings]

Fig. 1 shows a conventional waterproof connector housing, in which a is a longitudinal sectional view thereof, b is a perspective view of a bushing, Fig. 2 is a longitudinal sectional view of a female waterproof connector housing according to the present invention, and Fig. 3 is a longitudinal sectional view of the conventional waterproof connector housing. 2 is a longitudinal sectional view of another type of male connector housing used as a pair with the connector housing of FIG. 2. FIG. Code 10 is female type, 11 is base, 12 is connection terminal, 13
is a housing hole, 14 is a locking portion, 16 is a bushing, 17 is a conducting wire, 18 is an insertion hole, 19 is an exterior body, 20 is a locking portion, 21 is a joint portion, 23 is a lid portion, 25 is an engaging portion, 30 is male type, 34
35 is a base, and 36 is an O-ring.

Claims (1)

[Scope of utility model registration request] At least one of a pair of male and female connector housings includes a substantially cylindrical internal insulating member for fixedly accommodating a plurality of connection terminals in the axial direction, and a diameter approximately the same as that of the internal insulating member. and has a plurality of insertion holes in the axial direction for liquid-tightly inserting the conductive wire connected to the connection terminal, and a substantially short cylindrical rubber or the like connected to the rear end of the internal insulating member. an elastic insulating member, which is disposed around the continuum of the internal insulating member and the elastic insulating member, is fixedly fixed to the internal insulating member in the axial direction, is liquid-tightly joined to the elastic insulating member, and is liquid-tightly connected to the mating housing. A waterproof connector housing comprising a substantially cylindrical external insulating member that fits together.