JPH024452Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a connector that waterproofly connects a terminal provided on an equipment side and a terminal on an electric wire side.

"Prior Art" and "Problems to be Solved by the Invention" Conventionally, the above-mentioned connectors have a structure in which a male terminal protruding from the end face of the device is connected to a female terminal fitted with a protective cover, or In some cases, a hood is provided on the male terminal projecting toward the device, a connector housing housing the female terminal is fitted into the inner surface of the hood, and a locking mechanism for both is provided on the outside of the hood.

However, among the above conventional structures, the former does not have sufficient waterproof performance and cannot be used, for example, in the engine compartment of a car where high waterproof performance is required, and the latter has a locking mechanism on the terminal on the equipment side. In addition, the structure of the device becomes complicated, and the shape of the device to which the hood is installed is restricted.Furthermore, the structure makes it difficult to operate the locking mechanism, which limits the number of devices that can be used. There are some drawbacks such as restrictions.

The purpose of the present invention is to solve the above-mentioned difficulties of the prior art.

``Means for Solving the Problems'' This invention achieves the above objectives by ``providing a male terminal base with a protruding male terminal on the device side, and attaching an O-ring holding member to the female connector housing. A fitting recess is provided for internally fitting and receiving the male terminal base, and the presser member has a free end facing the male terminal base and an arch-shaped latching portion at the free end. A seesaw body is provided on the outer periphery of the female connector housing, the front end of which engages with the inside of the locking portion, and the fitting recess is connected to the male connector housing. The male terminal base is fitted into the male terminal base, and the elastic locking piece is hooked to the male terminal base to lock the connection.

"Example" and "Operation" Hereinafter, a detailed explanation will be given based on an example. Referring to FIGS. 1 to 4 showing an embodiment thereof, the device side of the connector of the present invention has a male terminal base 2 which is cylindrically protruded at key points of the device body 1 as shown in FIGS. 1 and 4. A tab-shaped male terminal 4 is buried in the male terminal base 2 with the upper half protruding, and on the outer periphery,
A locking pawl 11 for locking and locking the female connector housing 3 is provided protrudingly, and the female connector housing 3 is received and coupled to the outer periphery.

On the other hand, the female connector housing 3 (hereinafter simply referred to as the female housing 3) has a receptacle-shaped female terminal connected to the male terminal 4 in a terminal accommodating chamber 20 provided in the main part as shown in FIGS. A fitting recess 6 is provided at the front to receive the male terminal base 2, and a waterproof O-ring 8 is fitted into the inner circumferential stepped portion of the fitting recess 6. 8 is fitted, and the O-ring 8 is fitted onto the outer periphery of the male terminal base 2 which is fitted into the fitting recess 6.

That is, as shown in FIG. 3, the holding member 7 forms a toric body and is interposed between the inner periphery of the fitting recess 6 of the female housing 3 and the outer periphery of the male terminal base 2. The holding member 7 has a locking band 12 extending in the axial direction on its outer periphery, and when it is fitted into the fitting recess 6, the locking band 12 touches the guide portion 14 provided on the peripheral wall of the fitting recess 6. As it is inserted, the locking hole 13 at its tip engages with the locking claw provided on the outer periphery of the female housing 3, and it is integrally fitted into the female housing 3 while holding down the O-ring 8 of the holding member 7. It is designed to be worn.

The above presser member 7 has a male terminal base 2.
A cantilever-shaped elastic locking piece 9 is provided that has a free end facing the axial direction of the fitting recess 6 and extends in the axial direction of the fitting recess 6. When the male terminal base 2 is received in the fitting recess 6, the elastic locking piece 9 The locking holes 13 of the male terminal base 2 are engaged with the locking claws 11 of the male terminal base 2, so that the female housing 3 and the male terminal base 2 are connected without being easily separated. On the outside of the free end 9' of the elastic locking piece 9, a locking portion 15 is provided in an arch-like manner.

Further, a seesaw body 10 in the form of an intermediate support beam extending in the axial direction is formed on the outer periphery of the female housing 3, and the front end 17 of the seesaw body 10 is connected to the fitting recess 6.
The locking portion 1 of the elastic locking piece 9 of the presser member 7 fitted into the
It is designed to abut and engage with the inside of 5. That is, the seesaw body 10 forms a rod whose middle part is connected to a holding part 16 provided on the outer periphery of the female housing 3, and when the rear end 18 is operated in the direction of the arrow shown in the figure, the part connected to the holding part 16 becomes a fulcrum. It is formed to have a seesaw effect.

Note that a sealing member 19 is attached to the rear end of the female housing 3 to ensure sealing performance at that part.

In the connector of the present invention having the above configuration, the O-ring 8 and the holding member 7 are fitted into the female housing 3 to connect them together, and then the fitting recess 6 is fitted into the male terminal base 2 to connect the two. When combined, the elastic locking piece 9
engages with the locking pawl 11 of the male terminal base 2, and the connection between the two is completely locked. When the female housing 3 is to be removed, when the rear end 18 of the seesaw body 10 is pushed with a fingertip or the like, the front end 17 of the seesaw body 10 comes into contact with the inside of the locking part 15 of the elastic locking piece 9. Therefore, due to the seesaw action described above, the elastic locking piece 9 is forcibly pulled outward to release the engagement with the locking claw 11, and the female housing 3 is easily removed from the male terminal base 2. It gets pulled out. When the presser on the rear end 18 is released after the female housing 3 is pulled out, the elastic locking piece 9 returns to its original position by its own elasticity. Further, when the female housing 3 and the male terminal base 2 are connected, the elastic locking piece 9 is elastically deformed outward regardless of the seesaw body 10, and the locking claw 11
The user stands up and automatically engages and locks the locking pawl 11 due to the deformation reaction force.

According to the connector of the present invention with the above configuration, sufficient waterproof performance can be expected, and there is no need to provide a hood on the male terminal part of the device unlike in conventional structures, resulting in an extremely simple shape and structure. Therefore, restrictions on the equipment side for providing a waterproof connector are relaxed. For example, accessories necessary for the male terminal can also be included in the male terminal base 2, which increases the degree of freedom in designing the equipment, reduces costs, and allows the waterproof connector to be applied to a wide range of areas. Become. Further, since a mechanism for disengaging the seesaw body 10 is provided, the connector can be detached by simply pressing the rear end of the seesaw body 10 on the outer periphery of the female housing 3, which has the advantage that the operation is extremely simple.

"Effects of the Invention" As described above, the connector of the present invention not only has sufficient waterproof performance, but also simplifies the shape and structure of the terminal on the device side, increasing the applicability of the waterproof connector.
It has excellent effects such as simplifying connector operation.

[Brief explanation of the drawing]

Fig. 1: A front view showing a connector according to an embodiment of the present invention; Fig. 2: A female connector housing according to the embodiment shown in Fig. 1; A is a front view thereof, B is a side view thereof;
Figure 3: shows the holding member of the embodiment in Figure 1, A is its front view, B is its side view, Figure 4: shows the male terminal base of the embodiment in Figure 1, A is its front view, B is a side view Main symbols: 1...Equipment body, 2...Male terminal base, 3...Female connector housing, 4...Male terminal, 5...Female terminal, 6...Fitting recess, 7... ... Pressing member, 8 ... O-ring, 9 ... Elastic locking piece, 10
...Seesaw body, 11...Latching pawl, 12...Latching band, 13...Latching hole, 15...Latching portion, 16...
Holding portion, 19...Sealing member, 21...Electric wire.

Claims (1)

[Scope of utility model registration request] A male terminal base with a protruding male terminal is provided on the device side, and a fitting recess into which an O-ring holding member is fitted and received is provided in the female connector housing. Yes, and furthermore,
The presser member is provided with a cantilever-shaped elastic locking piece whose free end faces the male terminal base and has an arch-shaped locking portion at the free end, and on the outer periphery of the female connector housing, A seesaw body whose front end engages with the inside of the locking portion is provided, and the fitting recess is fitted into the male terminal base, and the elastic locking piece is hooked onto the male terminal base to lock the coupling lock. A connector characterized by a structure that