JPH04111165U - Connector lock structure - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] The present invention relates to a locking structure for male and female connector housings of electrical connectors. To provide a locking structure for a connector that does not transmit a false click sound or feel that occurs when the connector is inserted normally in the middle. [Structure] A tapered portion 1c 2 is provided on the upper surface of the locking protrusion 1c provided upright on the bottom plate _1b of the recessed portion of the female housing 1, and a central engaging portion 3f of the bridging portion 3c of the slit portion 3d of the packing holder 3 is provided with a tapered portion 1c2. It is formed so as to intersect and engage with the locking protrusion 1c, and a curved tip 3g is provided on the upper surface of the protrusion so as to reduce the height in the intersecting direction, so that it can be fixed even when the female housing and the packing holder are misaligned. To prevent a locking protrusion of a male connector housing from falling down during insertion and causing a false click sound or feel.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

For locking structures of male and female connector housings of electrical connectors used in automobiles, etc. It is related to

0002

[Conventional technology]

9 and 10 show a conventional waterproof connector, and the hood part a₁Inner peripheral surface stepped portion a ₂ A female connector housing with packing b secured to the front of the housing by packing holder c. It consists of a and a male connector housing d. Figure 11 shows the female connector housing. Fig. 6 is an exploded perspective view of the main parts of the lock of the gasket a and the packing holder c (Utility Model Application No. 62-109 No. 370).

[0003]The female connector housing a is provided with a recess _a4 having a locking protrusion _a3 erected on the inside in a part of the inner surface of the hood part _a1 , and a slit part _c3 in the upper part of the packing holder c. A bridging portion _c4 is provided, and a pair of flexible locking pieces c2 _{and c2} are provided in series, extending from both sides of the bridging portion _c4 in the housing insertion direction and having a locking protrusion _c1 at _the tip. ing. A double-sided flexible piece d ₂ having an engaging protrusion d ₁ projecting outward is integrally formed on the side surface of the male connector housing d.

0004 During use, the hood part a of the female connector housing a₁Packing b is inserted in Then, attach the packing holder c to the flexible locking piece c.₂Locking protrusion c at the tip of₁female connector recess a in housing a_Fourbottom plate a_Five(See Figure 10). this state, insert the male connector housing d into the hood part a of the female connector housing a.₁Press to Insert it while pushing it in. However, as shown in Fig. 12, the packing holder c is If the male connector housing d is misaligned due to misalignment, it may occur during the insertion process of the male connector housing d. and the engaging protrusion d of the male connector housing d.₁is the slit part c₃bridging department c _Four and the locking protrusion a of the female connector housing a.₃At this time, I was depressed by the difference between Conveys the same click sound and feel as normal insertion. For this reason, workers This may lead to the mistake of thinking that the work to insert the housing has been completed successfully. This will result in incomplete connections between the parts.

[0005]

[Problem that the idea aims to solve]

In view of the above-mentioned points, the present invention has been developed by using a packing holder when fitting a connector housing. Even if the connector housing is misaligned with the female connector housing, it is normal during insertion. Connector locks that do not convey the false click or feel that occurs when plugged into The purpose is to provide a block structure.

[0006]

[Means to solve the problem]

In order to achieve the above objective, the present invention provides a plug that fits into a male connector housing. A locking protrusion is provided on the inner surface of the board, and a cylindrical packing holder is inserted and locked. , the end of the bridging portion provided in the slit on the upper surface of the packing holder is connected to the locking protrusion. one end of the packing holder and the stepped part of the inner peripheral surface of the hood part. a female connector housing with a packing interposed between the connector housing and the locking protrusion; A male and female housing is provided with a flexible piece that has an engaging protrusion with a locking means. In the connector housing, the locking protrusion of the female connector housing and the packing holder The female connector is formed so that the ends of the bridging part intersect with each other, and The intersecting part of the locking protrusion of the data housing and the end of the bridging part of the packing holder A structure in which the parts are inclined so that their heights decrease from each other in the direction of intersecting each other. The structure was adopted.

[0007]

【Example】

Figure 1 is an exploded perspective view of the waterproof connector according to the present invention, and Figure 2 is an exploded perspective view of the female connector housing. A vertical cross-sectional view showing the packing 2 and packing holder 3 fitted into the ring 1 and the male connector FIG. 4 is a longitudinal cross-sectional view of the housing 4. FIG. In both cases, terminals and wires are omitted. Figure 3 is a female FIG. 4 shows the main part of the lock when the packing holder 3 is fitted into the female connector housing 1. FIG.

[0008] In FIG. 1, the female connector housing 1 has a locking protrusion 1c on the inner surface of the hood portion 1a. A concave portion 1d is provided inside the packing holder 3. A bridging part 3c is provided in the slit part 3d, and the housing is opened from both sides of the bridging part 3c. A pair of flexible locking pieces 3b, 3b extending in the insertion direction and having a locking protrusion 3a at the tip. are installed in succession. The upper surface of the male connector housing 4 has an engaging protrusion 4a projecting outward. The flexible piece 4b provided at both ends is integrally formed.

[0009] A packing 2 made of a sealing member is attached to the front end 3e of the packing holder 3 and the female connector holder. The bottom of the recess 1d of the female connector housing 1 is In the front end of the bridging portion 3c of the packing holder 3 and the locking protrusion 1c erected on the plate 1b. The central engaging portions 3f intersect with each other and are close to each other (see FIGS. 3 and 4). female connection The locking protrusion 1c erected on the bottom plate 1b of the data housing 1 is located at the rear (wire connection side). A certain rectangular parallelepiped base 1c₁On one side, there is a cubic pyramid-shaped tapered part 1c with a tapered tip. ₂ is integrally formed with the tip facing forward on the holder side (see Fig. 3).

FIG. 4 is a perspective view of the main parts of the lock when the male connector housing 1 and the packing holder 3 are fitted together. 5 and 6 are longitudinal cross-sectional views of the main part of the lock in the direction of the line A-A in FIG. 4, and FIGS. 7 and 8 are longitudinal cross-sectional views of the main part of the lock in the direction of the line B-B in FIG. be. As shown in FIGS. 5 and 7, the ridge surface of the tapered portion _1c2 is formed such that its height decreases in the direction intersecting the front end central engagement portion 3f of the bridging portion 3c of the packing holder 3. . The front end central engagement portion 3f of the bridging portion 3c of the packing holder 3 has a front end that is flat as shown in FIG. The planar curved tip 3g of the engaging portion 3f is formed into a tapered shape that decreases in height toward the front (see FIG. 7). The height of the engaging portion 3f is set to be approximately equal to the height of the rectangular parallelepiped base portion _1c1 .

[0011] The upper surface of the male housing 4 is held by a flexible piece 4b having an engagement protrusion 4a erected on the upper surface. It is formed integrally with the male housing 4 at the portion 4c. During use, first insert the packing 2 into the hood portion 1a of the female connector housing 1. It is brought into contact with the step part 1e at the back. Next, attach the packing holder 3 to the female connector housing 1. into the hood part 1a of the packing holder and compress the packing 2 with its tip edge. The locking protrusion 3a at the tip of the flexible locking piece 3b of No. 3 engages the recess 1 of the female connector housing 1. d to the end edge 1f of the bottom plate 1b to complete the assembly in the state shown in FIG.

0012 Next, the flexible piece 4b on the upper surface of the male housing 4 is attached to an engaging member erected thereon. The male Fit the housing 4 into the packing holder 3. As the next step, the engagement protrusion 4a dodged the protrusion 1c of the female housing 1. It is inserted until you hear the click sound and feel of the packing hole falling. If the slider 3 is out of alignment, in the conventional example, a fake click sound and feel will be generated as described above. There was a problem that occurred (see Figure 12). In this example, as shown in FIGS. 6 and 8, Even if the female housing 1 and the packing holder 3 are misaligned, the female housing 1 The stepped portion of the engagement portion 3f between the locking protrusion 1c and the bridging portion 3c of the packing holder 3 is shaped Due to its shape, it has a gentle slope, so although there is some dip, it is not a false click. No sound or feel occurs. Therefore, the worker may have mistakenly stopped the work at this point. There is no possibility of assembling defective products due to incomplete connections between housings. Furthermore, When the male connector housing 4 continues to be inserted, the engaging protrusion 4 of the male connector housing 4 a indicates the position of the flexible piece 4b when it passes over the locking protrusion 1c of the female connector housing 1. The flexibility allows for a proper click sound and feel to be produced, allowing the operator to connect correctly. After confirming that the computer is connected, the work is completed.

[0013] In addition, if the female housing 1 and the packing holder 3 are locked without slipping, As shown in FIG. 5, the valley falls due to the intersecting taper of the protrusion 1c and the engaging portion 3f. There is almost no clumping, and there is no false click sound or feel during insertion.

[0014]

[Effect of the idea]

As mentioned above, this invention uses a packing hole when mating connector housings together. Even if the connector is misaligned with the female connector housing, it is normal during insertion. It does not convey the false click sound or feel that occurs when the lock is inserted into the It is possible to prevent this and smoothly achieve a completely locked state.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a connector housing according to the present invention.

FIG. 2 is a longitudinal sectional view of a connector housing according to the present invention.

FIG. 3 is an exploded perspective view of the locking main parts of the female connector housing and the packing holder according to the present invention.

FIG. 4 is a perspective view of the female connector housing and the locking part of the packing holder assembled together according to the present invention;

FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4, showing a normal state of the lock portion.

FIG. 6 is a vertical cross-sectional view of the lock part in a shifted state according to the present invention;

FIG. 7 is a sectional view taken along line BB in FIG. 4, showing a normal state of the lock portion.

FIG. 8 is a cross-sectional view taken along line BB in FIG. 4, and is a vertical cross-sectional view of the lock portion in a shifted state.

FIG. 9 is an exploded perspective view of a conventional connector housing.

FIG. 10 is a longitudinal sectional view of a conventional connector housing.

FIG. 11 is an exploded perspective view of a conventional female connector housing and a main part of a packing holder lock.

FIG. 12 is a vertical cross-sectional view of a conventional lock portion in a shifted state.

[Explanation of symbols]

1 Female housing 1b Bottom plate 1c Locking protrusion 1d recess 2 Packing 3 Packing holder 3c Bridging Department 3d slit part 3f Engagement part 4 Male housing 4a Engaging protrusion 4b Flexible piece

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Seiji Yukimatsu Yazaki, 206-1 Nunobikihara, Haibara-cho, Haibara-gun, Shizuoka Prefecture Inside Parts Co., Ltd.

Claims (1)

[Scope of utility model registration request] Claim 1: A locking protrusion is provided on the inner surface of the hood into which the male connector housing is inserted, and a cylindrical packing holder is inserted and locked at the end of the bridging portion provided in the slit on the upper surface of the packing holder. is positioned close to the locking protrusion, and a female connector housing is formed by interposing a packing between one end of the packing holder and a step on the inner circumferential surface of the hood portion, and the locking protrusion engages the female connector housing. In a male and female connector housing that is a male housing provided with a flexible piece that stands up an engagement protrusion having a means, the locking protrusion of the female connector housing and the end of the bridging part of the packing holder may partially intersect with each other. The intersecting portion of the locking protrusion of the female connector housing and the intersecting portion of the end of the bridging portion of the packing holder are inclined such that their heights decrease from each other in the intersecting direction. Lock structure of the connector.