JP6933534B2 - Semi-fitting prevention connector - Google Patents

Description

The present invention relates to a semi-fitting prevention connector having a semi-fitting prevention function.

As this type of semi-fitting prevention connector, those shown in FIGS. 5 and 6 are known. As shown in FIGS. 5 and 6, the semi-fitting prevention connector 1 has a female connector 2 having a female terminal 4 in the female housing 3 and a locking projection 3a on the outside of the female housing 3, and a male housing 6. A male connector 5 having a male terminal 7 and a lock arm 6a having a lock protrusion 6b locked by a locking projection 3a when fitted to the female connector 2, and an annular spring of the female housing 3. It is provided in the accommodating portion 3A, and when the female and male connectors 2 and 5 are fitted, it is pressed against the tip of the cylindrical hood portion 6A of the male housing 6 to be elastically deformed, and the female and male connectors 2 and 5 are half-fitted. It is provided with a large-diameter compression coil spring 8 that sometimes separates female and male connectors 2 and 5. Reference numeral 9 in FIGS. 6 and 7 is a spring stopper member for preventing the spring from coming off.

Then, in order to prevent half-fitting (half-fitting), the repulsive force of the compression coil spring 8 is set to be equal to or greater than the detaching force of the female and male connectors 2 and 5, so that the locking projection 3a of the female connector 2 and the male connector are used. Until the lock protrusion 6b of the lock arm 6a of 5 is locked, the female terminal 4 and the male terminal 7 are pushed back to a state where they do not come into contact with each other by the repulsive force (restoring force) of the compression coil spring 8, and the female and male connectors 2 and 5 The female terminal 4 and the male terminal 7 are prevented from conducting each other in the half-fitting.

Japanese Unexamined Patent Publication No. 9-129313

However, in the conventional semi-fitting prevention connector 1, since the compression coil spring 8 for preventing semi-fitting is constantly loaded after the connector is fitted, the service life of the compression coil spring 8 is shortened. Further, since the spring stopper member 9 provided in the annular spring accommodating portion 3A of the female housing 3 is a separate member, the work efficiency at the time of assembling the housing is deteriorated.

Therefore, the present invention has been made to solve the above-mentioned problems, and provides a semi-fitting prevention connector capable of preventing semi-fitting and improving the service life and assembly workability. The purpose is to provide.

The present invention is a semi-fitting prevention connector having a function of preventing half-fitting, wherein the one connector having one terminal and a lock arm and the lock arm when fitted to the one connector Both of the diagonal locking plate to which the lock portion is locked, the other connector having the other terminal, and the outer surface of the other connector and the tip end portion of the diagonal locking plate are provided so as to stand upright. When the connector is half-fitted, the one connector is urged in the anti-fitting direction to separate the two connectors, and the lock portion of the lock arm of the one connector is the lock portion of the other connector. At the time of half-fitting of both connectors until they are locked to the tip of the diagonal locking plate, the elastic member is pressed by the lock arm through the tip of the diagonal locking plate to be elastically deformed. When the locking portion of the lock arm of one connector is locked to the tip of the diagonal locking plate of the other connector, the tip of the diagonal locking plate of the elastic member is pressed when the fitting of both connectors is completed. The pressing state by the lock arm via the lock arm is released so that the elastic member is restored to the original state, a pair of ribs are projected on the outer surface of the other connector, and the diagonal locking is performed between the pair of ribs. The base end portion of the plate is swingably pivotally supported via a support shaft, and the elastic member is arranged so as to stand up between the outer surface of the other connector and the tip end portion of the diagonal locking plate. It is characterized by.

According to the present invention, since no load is applied to the elastic member after the connector is fitted, the durability of the elastic member is improved and the service life of the semi-fitting prevention connector can be extended. In addition, the elastic member is held by the diagonal locking plate that locks the lock portion of the lock arm, and the diagonal locking plate has both the function of locking the lock portion and the function of holding the elastic member. The number of parts can be reduced, and the workability of assembling the housing can be improved.

It is a perspective view which shows the main part of the semi-fitting prevention connector of one Embodiment of this invention in the cross section. It is sectional drawing which shows the state before fitting of the said semi-fitting prevention connector. It is sectional drawing which shows the state in the middle of fitting of the said semi-fitting prevention connector. It is sectional drawing which shows the fitting completion state of the said semi-fitting prevention connector. It is explanatory drawing which shows the state before fitting of the conventional semi-fitting prevention connector. It is explanatory drawing which shows the state of completion of fitting of the said conventional semi-fitting prevention connector.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a main part of the semi-fitting prevention connector according to the embodiment of the present invention in cross section, FIG. 2 is a cross-sectional view showing a state before fitting of the connector, and FIG. FIG. 4 is a cross-sectional view showing the state of the above, and FIG. 4 is a cross-sectional view showing the fitting completed state of the connector.

As shown in FIGS. 1 to 4, the semi-fitting prevention connector 10 is provided on a partition wall 22 made of hard synthetic resin and partitioning a cylindrical male housing 21, and a plurality of male terminals protruding into the hood portion 23 ( A disk-shaped connector that separates a male connector (one connector) 20 having one terminal) 25 and a pair of lock arms 24, 24 outside the partition wall 22 and a cylindrical female housing 31 made of hard synthetic resin. A plurality of female terminals (the other terminal) 35 are provided on the partition wall 32, and a female connector (the other connector) 30 fitted to the inner peripheral surface 23a side of the cylindrical hood portion 23 of the male housing 21 and a cylindrical shape. The female housing 31 is arranged so as to stand upright (perpendicular to the flat surface 31b) on a flat surface (outer surface) 31b formed at a vertical position on the tip end side of the outer peripheral surface 31a of the pair of lock arms 24, 24. Each lock protrusion 24a of the pair of lock arms 24, 24 is elastically deformed by pressing the lock protrusion (lock portion) 24a, and the pair of diagonal locking plates 33, 33 provided on the outer peripheral surface 31a of the female housing 31. A pair of compressions having a repulsive force (restoring force) that urges the male connector 20 in the anti-fitting direction B when the both connectors 20 and 30 are half-fitted until they are locked to the two connectors 20 and 30. It includes coil springs (elastic members) 34 and 34.

A pin-shaped male terminal 25 projecting into the cylindrical hood portion 23 is provided so as to project from the disk-shaped partition wall 22 that partitions the cylindrical male housing 21 of the male connector 20. An electric wire 26 is connected to the male terminal 25.

Further, a pair of notched groove portions 23b, 23b extending to the pair of lock arms 24, 24 are formed at the vertical positions of the hood portion 23 of the male housing 21 of the male connector 20. The diagonal locking plate 33 of the female connector 30 and the compression coil spring 34 are inserted into the notch groove portion 23b.

Further, at a position of the outer peripheral surface 21a of the male housing 21 facing the partition wall 22, a pair of lock arms 24 having lock protrusions 24a locked to the respective tip portions 33a of the pair of diagonal locking plates 33, 33. , 24 are integrally projected in an L shape. The locking holding force at this time is equal to or greater than the repulsive force of the compression coil spring 34.

A pair of ribs 31c and 31c are integrally projected at the vertical positions (both sides of each flat surface 31b) on the tip end side of the outer peripheral surface 31a of the cylindrical female housing 31 of the female connector 30. Between the pair of ribs 31c and 31c, the base end portions 33b of the pair of diagonal locking plates 33 and 33 are pivotally supported via a support shaft 37 so as to be swingable. A compression coil spring 34 is arranged so as to stand between the outer peripheral surface 31a of the female housing 31 and the tip portions 33a of the pair of diagonal locking plates 33, 33.

Further, the lower side of each base end portion 33b of the pair of diagonal locking plates 33, 33 is in contact with the regulation shaft 38 spanned between the pair of ribs 31c, 31c, and the diagonal locking plates 33 of each diagonal locking plate 33. While maintaining the inclined state, the compression coil spring 34 arranged so as to stand up between the flat surface 31b of the female housing 31 and the tip portions 33a of the pair of diagonal locking plates 33, 33 does not come out to the outside. It has become like. Further, the compression coil spring 34 and the regulation shaft 38 always keep the tip 33a of the diagonal locking plate 33 upward so that the lock protrusion 24a of the lock arm 24 can be easily locked to the tip 33a of the diagonal locking plate 33. be.

Then, when both connectors 20 and 30 are half-fitted until the lock protrusion 24a of the lock arm 24 of the male connector 20 is locked to the tip end portion 33a of the diagonal locking plate 33 of the female connector 30, the lock arm 24 is locked. The compression coil spring 34 is pressed by the protrusion 24a via the tip 33a of the diagonal locking plate 33 to be compressed and deformed, and the lock protrusion 24a of the lock arm 24 of the male connector 20 is the diagonal locking plate 33 of the female connector 30. When the fitting of both connectors 20 and 30 to be locked to the tip 33a is completed (normal fitting), the lock protrusion 24a of the lock arm 24 is formed via the tip 33a of the diagonal locking plate 33 of the compression coil spring 34. The pressed state is released and the compression coil spring 34 is restored to the original state.

Further, a plurality of cylindrical female terminals 35 are provided so as to project from the partition wall 32 that partitions the cylindrical female housing 31 of the female connector 30. Each female terminal 35 is partitioned by a partition plate 32a integrally protruding from the partition wall 32. Further, an electric wire 36 is connected to each female terminal 35.

According to the semi-fitting prevention connector 10 of the above embodiment, at the start of fitting the male connector 20, the female connector 30 stands between the flat surface 31b of the female housing 31 and the tip portions 33a of the diagonal locking plate 33. The compression coil spring 34 arranged so as to be compressed is compressed by pressing the lock protrusion 24a of the lock arm 24 provided on the male connector 20, so that normal fitting is achieved.

Further, by adopting a structure in which the male terminal 25 of the male connector 20 and the female terminal 35 of the female connector 30 start contacting at the same time when the compression coil spring 34 is completely compressed, both connectors 20 and 30 are formed as shown in FIG. In the semi-fitted state, both connectors 20 and 30 are separated from each other by the repulsive force of the compression coil spring 34 so that the male and female terminals 25 and 35 do not come into contact with each other. This action prevents half-fitting of both connectors 20 and 30.

Further, in the conventional semi-fitting prevention connector, a load is intermittently applied to the compression coil spring in the mating state of both connectors, but in the semi-fitting prevention connector 10 of the present embodiment, both connectors 20 By releasing the load applied to the compression coil spring 34 after the fitting of the 30, the service life of the compression coil spring 34 is extended, which contributes to extending the life of the semi-fitting prevention connector 10. By integrating the compression coil spring 34 together with the female housing 31 and the diagonal locking plate 33, the number of structural members of the connector can be reduced.

FIG. 4 shows that the male housing 21 and the female housing 31 are fitted together, and the diagonal locking plate 33 provided on the female housing 31 and the lock protrusion 24a of the lock arm 24 provided on the male housing 21 are locked. As shown, the male and female connectors 20 and 30 are completely fitted, and the connection between the male terminal 25 of the male connector 20 and the female terminal 35 of the female connector 30 is completed.

As described above, since no load is applied to the compression coil spring 39 after the fitting of both connectors 20 and 30, the durability of the compression coil spring 39 is improved, and the service life of the semi-fitting prevention connector 10 can be extended. Further, the compression coil spring 34 is held by the diagonal locking plate 33 that locks the lock protrusion 24a of the lock arm 24, and the diagonal locking plate 33 has a function for locking the lock protrusion 24a and a function for holding the compression coil spring 34. By combining the functions, the number of parts can be reduced by that amount, and the workability of assembling both housings 21 and 31 can be improved.

According to the above embodiment, a pair of lock arms are provided, but three or more lock arms may be provided. Further, although the housing is formed in a cylindrical shape, it may be formed in a rectangular box shape or the like.

Further, according to the above-described embodiment, the tilted state of the diagonal locking plate is maintained by the compression coil spring and the regulation shaft, but the tilted state of the diagonal locking plate is maintained by the diagonally tilted guide or the like. You may try to do it.

10 Semi-fitting prevention connector 20 Male connector (one connector)
24 Lock arm 24a Lock protrusion (Lock part)
25 Male terminal (one terminal)
30 female connector (the other connector)
31b Flat surface (outer surface)
31c, 31c Pair of ribs 33 Diagonal locking plate 33a Tip 33b Base end 34 Compression coil spring (elastic member)
35 Female terminal (the other terminal)
B Anti-fitting direction

Claims (1)

One connector with one terminal and a lock arm,
An oblique locking plate that locks the lock portion of the lock arm when fitted to the one connector, and the other connector having the other terminal.
It is provided so as to stand up between the outer surface of the other connector and the tip of the diagonal locking plate, and when the two connectors are half-fitted, the one connector is urged in the anti-fitting direction to both of them. With an elastic member that separates the connector,
At the time of half-fitting of both connectors until the lock portion of the lock arm of the one connector is locked to the tip end portion of the diagonal locking plate of the other connector, the lock arm causes the diagonal locking plate of the diagonal locking plate. The elastic member is pressed through the tip and elastically deformed.
When the lock portion of the lock arm of the one connector is locked to the tip portion of the diagonal locking plate of the other connector, the tip portion of the diagonal locking plate of the elastic member is completed when the fitting of both connectors is completed. The state of being pressed by the lock arm via the lock arm is released so that the elastic member is restored to the original state .
A pair of ribs are projected from the outer surface of the other connector, and the base end portion of the diagonal locking plate is swingably pivotally supported between the pair of ribs via a support shaft, and the outer surface of the other connector is supported. A semi-fitting prevention connector characterized in that the elastic member is arranged so as to stand up between the connector and the tip of the diagonal locking plate.

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