JP2003257551A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent false insertion-coupling of housings and prevent damages on connecting terminals. <P>SOLUTION: A first front holder 3 and male connecting terminal are built in inside a first housing 1, and the first front holder 3 has a plurality of tongue- piece partition wall parts separating insertion ends of male connecting terminal to top and bottom set in protrusion toward front, and has a convex guide 14 of almost an L shape cross-section, for instance, at a part where the partition wall is excluded. The partition wall parts 13 protect an insertion end of the male connecting terminal, and the convex guide 14 protects on one hand the insertion end of the male connecting terminal and prevents it false insertion, on the other, by being insertion-coupled with a guide hole of the second front holder insertion-mounted on the second housing. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector which protects connection terminals and enables proper connection between housings.

[0002]

2. Description of the Related Art When fitting a first housing and a second housing to each other to obtain an electrical connection between connection terminals, the housings may be fitted in different directions. In a multi-pole connector with many connection terminals,
In particular, in a housing to which a male connecting terminal is attached, a large number of tongue-shaped connecting ends of the male connecting terminal are projected, and these connecting ends may be deformed due to collision with foreign matter. It becomes impossible to fit each other.

Further, there is also a problem that fitting is started in a state where the housings are inclined with respect to each other, causing a so-called twisting phenomenon in the connection terminal and damaging the connection terminal.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems of the prior art and to provide a connector capable of surely preventing erroneous fitting of housings and preventing damage to connection terminals. Especially.

[0005]

A connector according to the present invention for achieving the above object is a connector for connecting a first housing and a second housing to each other to connect connection terminals incorporated therein. In the first housing, male connection terminals are housed, and a first front holder having a partition wall section that separates the insertion ends of these male connection terminals from each other in at least one direction is attached from the front side. The second housing accommodates the female connection terminals connected to the insertion ends of the male connection terminals, and receives the partition wall portion of the first front holder interposed between the reception connection ends of the female connection terminals. The second front holder is inserted from the front side, a convex guide is provided in a part of the first front holder, and a guide hole for fitting the convex guide is provided in the second front holder, The mold guide and the guide hole, wherein the first, the second housing and configured to only be coupled when in coupling position relation of normal.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail based on the illustrated embodiments. FIG. 1 is a perspective view of a first housing 1 accommodating a male connection terminal with a connector separated,
FIG. 2 shows a perspective view of the second housing 2 accommodating the female connection terminals. A first front holder 3 made of synthetic resin shown in FIG. 3 is incorporated into the first housing 1 from the front side, and a second front holder 4 made of synthetic resin shown in FIG. Built in from the front.

The connector of the present embodiment is of a type in which the turning lever 5 provided in the second housing 2 is used to connect with the first housing 1, and the turning lever 5 is provided in the first housing 1. Pins 7 that fit into the cam grooves 6 are provided on both sides. Further, the first housing 1 and the turning lever 5 are respectively provided with a locking portion 8 for locking the turning lever 5,
9 is provided.

The first front holder 3 has a plurality of strip-shaped insertion portions 11 for attaching to the first housing 1, and the insertion portions 11 are provided with locking claw portions 12. . Further, in order to vertically separate the insertion ends of the male connection terminals (not shown) toward the front opposite to the insertion portion 11, a tongue-shaped partition wall portion 13 of substantially the same number as the male connection terminals is projected. The section except the partition wall 13 has, for example, a substantially L-shaped cross section.
A letter-shaped convex guide 14 is provided.

On the other hand, the second front holder 4 has a plurality of insertion portions 15 for attaching to the second housing 2, and these insertion portions 15 are provided with locking claw portions (not shown). There is. In addition, a plurality of rod-shaped portions 1 are directed toward the front.
6 are protruded, and these rod-shaped portions 16 are located at one side of a rectangular tube-shaped terminal accommodating hole for accommodating the female connection terminal of the second housing 2, and the front end of the rod-shaped portion 16 has the front of the female connection terminal. Protrusions 17 are formed to prevent coming off. Further, a gap 18 is provided in the horizontal direction on the front surface of the second housing 2 to receive the partition wall portion 13 of the first front holder 3, and the second front holder 4 has a convex portion of the first front holder 3. A guide hole 19 that fits into the mold guide 14 is provided.

FIG. 5 is a vertical cross-sectional view showing a state in which the first front holder 3 and the male connecting terminal 21 are incorporated in the first housing 1, and FIG. 6 shows the second front holder 4 in the second housing 2. It shows a vertical cross-sectional view in which the female connection terminal 22 is incorporated. The male connecting terminal 21 is held in the terminal housing hole 23 of the first housing 1, and the insertion end 2 of the male connecting terminal 21 is held.
The front end of 1a is located inside the partition wall portion 13 of the first front holder 3 and projects between the upper and lower partition wall portions 13.

The female connecting terminal 22 is held in the terminal accommodating hole 23 of the second housing 2, and the protrusion 17 of the second front holder 4 prevents the female connecting terminal 22 from being pulled out.

When connecting the first and second housings 1 and 2, first, the convex guide 14 of the first front holder 3 is connected.
Engages in the guide hole 19 of the second housing 2 and abuts the partition wall portion 13 in the gap 18 so as to start the fitting and insertion thereof substantially evenly, so that the pin 7 of the first housing 1 Engage the cam groove 6 of the turning lever 5 of the housing 2,
The rotation lever 5 is operated to pull the first housing 1 to the second housing 2 and join them.

When the first and second housings 1 and 2 are connected to each other, the first and second housings 1 and 2 are, for example, vertically moved due to the above-described cross-sectional shapes of the convex guide 14 and the guide hole 19. If the wrong direction is used for connection, the connection becomes impossible and the wrong connection of the connector is prevented.

Since the front end of the first front holder 3 projects forward from the insertion end 21a of the male connecting terminal 21, the first and second housings 1 and 2 are apt to be fitted in the wrong directions. In this case, the insertion end 21 of the male connecting terminal 21
Since a does not contact the receiving connection end 27 of the female connection terminal 22, unexpected electrical contact between the male connection terminal 21 and the female connection terminal 25 can be prevented.

Further, the tip of the partition wall portion 13 has a male connection terminal 2
Since the protruding guide 14 is properly engaged with the guide hole 19 and the fitting is started, the partition wall portion 13 is connected to the male connecting terminal 21a. Before the tip of the insertion end 21a of the above reaches the receiving connecting end 27 of the female connecting terminal 22, it reaches the gap 18 of the second front holder 4 and is slightly inserted therein.

However, when the first and second housings 1 and 2 are inclined with respect to each other and the fitting is started, a depth is generated in the fitted state of the partition wall portion 13 and the insertion resistance of each fitting is increased. Due to the difference, the correction action for the inclination between the two connectors works so that the fitting and insertion can be performed uniformly. As the insertion and insertion progresses, the clearance between the cylindrical convex guide 14 and the guide hole 19 is limited, and the insertion and insertion of the first housing 1 and the second housing 2 proceed in parallel, so that the male connection terminal 21 Before the insertion end 21a contacts the receiving connection end 27 of the female connecting terminal 22, the inclined insertion of the insertion end 21a, which is the cause of the twisting phenomenon, is corrected.

The partition wall portion 13 also has a function of preventing foreign matter from being taken into the connection portion of the connection terminal, prevents the twisting phenomenon, and prevents unexpected electrical contact between the connection ends 21a and 27. Can be prevented. This partition 1
Although 3 is provided for each connection terminal, they may be provided in a row,
Further, they may be separated in the horizontal direction or in the vertical and horizontal directions.

Further, the convex guide 14 of the first front holder 3 is arranged so as to be offset from the central axis of the first housing 1,
The guide hole 19 of the second front holder 4 is provided in the convex guide 1
Even if the convex guide 14 and the guide hole 19 are not devised in terms of shape by engaging with 4 and disposing them so as to be offset from the central axis of the second housing 2, as in the first embodiment, It is possible to prevent erroneous fitting of the first and second housings 1 and 2.

[0019]

As described above, the connector according to the present invention can prevent erroneous mating of the connector, damage of the connection terminals due to a twisting phenomenon or other external force, and risk of unexpected electrical contact between the connection terminals. The sex can be eliminated.

[Brief description of drawings]

FIG. 1 is a perspective view of a first housing.

FIG. 2 is a perspective view of a second housing.

FIG. 3 is a perspective view of a first front holder.

FIG. 4 is a perspective view of a second front holder.

FIG. 5 is a vertical cross-sectional view showing a state in which a first front holder and a connection terminal are inserted into a first housing.

FIG. 6 is a vertical cross-sectional view showing a state where a second front holder and a female connection terminal are inserted into a second housing.

[Explanation of symbols]

1 First housing 2 Second housing 3 First front holder 4 Second front holder 5 Rotating lever 13 Partition 14 Convex guide 16 Bar 18 Gap 19 Guide hole 21 Male connection terminal 22 Female connection terminal

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takayuki Higuchi             529-1 Toyohamakita, Nerima-ku, Tokyo Ryosei             Denso Co., Ltd. (72) Inventor Hirose Tetsu             529-1 Toyohamakita, Nerima-ku, Tokyo Ryosei             Denso Co., Ltd. F-term (reference) 5E021 FA05 FA09 FA14 FA16 FC07                       FC38 HB01 JA05 JA11

Claims (5)

[Claims] 1. A connector for connecting a first housing and a second housing to each other so as to connect their built-in connection terminals to each other, wherein a male connection terminal is housed in the first housing and the male housing terminals are connected to each other. A female mold in which a first front holder having a partition wall that separates the insertion ends of the mold connection terminal from each other in at least one direction is inserted from the front surface, and is connected to the insertion end of the male connection terminal in the second housing. A second front holder, which accommodates the connection terminals and is interposed between the receiving and connecting ends of these female connection terminals and receives the partition wall portion of the first front holder, is inserted from the front surface, and the first front holder is attached. Is provided with a convex guide in a part thereof, the second front holder is provided with a guide hole for fitting with the convex guide, and the convex guide and the guide hole are properly combined with each other in the first and second housings. position A connector characterized in that it is configured to be connectable only when there is a relationship. 2. The connector according to claim 1, wherein the cross-sectional shapes of the convex guide and the guide hole are non-rotationally symmetric. 3. The convex guide and the guide hole are the first
The connector according to claim 1, wherein the connector is arranged so as to be offset from the central axis of the front holder. 4. The tip surfaces of the convex guide and the guide hole are respectively attached to the tips of the male connection terminals so that a guide function of the insertion is performed before the male connection terminals are inserted into the female connection terminals. The connector according to claim 1, wherein the connector is protruded from the tip of the female connection terminal. 5. The front end of the partition wall portion of the first front holder projects more than the front end of the male connection terminal, and the second front surface is inserted before the male connection terminal is fitted into the female connection terminal. The connector according to claim 1, wherein the connector is adapted to enter a gap between the holders.