JPH0831500A - Multipole connector - Google Patents

Abstract

PURPOSE:To prevent any erroneous mounting of respective connectors by providing head parts projecting from sub-connector cases to respective retainers and providing recessed parts capable of receiving the head parts on side walls of respective mounting holes of a connector frame in the case of mounting the sub-connectors matching to respective mounting holes. CONSTITUTION:A head part 61 projecting from one of side walls of a case 53 is provided to a retainer 60 which is inserted in a penetration hole 55 in a side face of the connector case 53 of a sub-connector 5U. Recessed parts 31c-33c, 41c-43c in which the head parts of sub-connectors 50 matching to each other are fitted are provided in the side walls of the respective mounting holes 21-26 of the connector frame 10. Therefore, when the sub-connectors 50 are mounted in the respective mounting holes 21-26, and if cases 53 have same shapes, the positions of the head parts 61 of the retainers 60 are different so that they can be inserted into the predetermined mounting holes. Therefore, any erroneous mounting of the sub-connectors can be prevented and kinds of the cases 53 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a connector frame having a plurality of insertion holes and a plurality of sub-connectors respectively inserted into the corresponding insertion holes, and provided in a connector case of the sub-connector. The present invention relates to a multi-pole connector in which a retainer is inserted into a through hole to prevent a connector terminal attached from coming off.

[0002]

2. Description of the Related Art Conventionally, as a multi-pole connector, Japanese Patent Laid-Open No.
The one described in Japanese Patent Publication No. 2743180 is known.

In such a multipolar connector, a plurality of connector insertion windows are formed in the connector frame, and female unit connectors are inserted in the respective connector insertion windows. On the other hand, by forming a plurality of connector insertion windows on another connector frame, inserting a male unit connector (sub-connector) into each connector insertion window, and connecting the other connector frame to the connector frame, female terminals can be obtained. The connector and the male unit connector (sub connector) are connected.

[0004]

However, in this multi-pole connector, the connector insertion windows into which the female unit connector and the male unit connector are inserted are predetermined and the unit connectors are inserted. When wearing, so as not to be so-called erroneous insertion, which is inserted into a connector insertion window different from the predetermined connector insertion window,
The shape and color are changed for each male unit connector and each female unit connector.

Therefore, there are many types of unit connectors, and the number of molds to be manufactured also increases. Further, since there are many types of unit connectors, the management man-hours are also increased, which causes a problem that the manufacturing cost is increased.

The present invention has been made in view of the above problems, and an object thereof is to provide a multi-pole connector which can reduce the number of types of sub-connector shapes.

[0007]

In order to achieve the above-mentioned object, the present invention comprises a connector frame having a plurality of insertion holes and a plurality of sub-connectors respectively inserted into the corresponding insertion holes. , Each of the sub-connectors has a connector case having a plurality of terminal holes arranged in parallel, and a connector terminal mounted in the terminal hole, and the connector case is arranged along the parallel direction of the terminal holes. In the multipolar connector in which a through hole is provided, and a retainer is inserted into the through hole to prevent the connector terminal mounted in each terminal hole from coming off, each retainer is provided with a head projecting from the connector case. When inserting the sub-connectors respectively corresponding to the respective insertion holes, a concave portion into which the head portion is inserted is provided on the side wall of each insertion hole along the insertion direction to prevent incorrect insertion of each sub-connector. To prevent And butterflies.

[0008]

According to the present invention, each retainer is provided with a head projecting from the sub-connector case, and when the sub-connectors corresponding to the respective insertion holes are inserted, the recesses into which the heads are inserted are inserted into the connector frames. Since it is provided on the side wall of the attachment hole along the insertion direction to prevent erroneous insertion of each sub-connector, there is no need to change the shape of each sub-connector.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multipolar connector according to the present invention will be described below with reference to the drawings.

1 to 3, reference numeral 10 denotes a male connector frame, and a rectangular recess 11 is formed on the front surface side (left side in FIG. 2) of this connector frame 10 and the rear surface side (in FIG. 2). The window portion 12 is provided in the. A rectangular tubular portion 13 protruding forward is formed in a central portion of the window portion 12, and the cylindrical portion 13 is provided in the tubular portion 13.
4 are formed. Reference numeral 13a denotes a protrusion formed on the inner side of the cylindrical portion 13, which is a connector frame 100 (see FIG.
(See) to determine the orientation of the connection.

A plurality of male connector terminals 14 are attached to both sides of the tubular portion 13 of the window portion 12. The insertion holes 21 to 23 and 24 to 2 are provided on the lower side and the upper side of the tubular portion 13 of the window portion 12.
6 is formed. Protrusions 21a to 23a extending in the front-rear direction are provided on the lower surface (in FIG. 1) of the insertion holes 21 to 23, and the positions of the protrusions 21a to 23a are set to be different from each other.

On the upper surface of the insertion holes 21-23, a step portion 21b is formed.
23b are formed to abut a stepped portion of the sub-connector, which will be described later, to prevent the sub-connector from coming off in the front direction.

As shown in FIGS. 4 and 5, recesses 31a and 31b extending in the front-rear direction are formed on both side walls of the insertion hole 21, and grooves 35a and 3b are formed in the recesses 31a and 31b.
5b is formed. Lock claws 38, 38 are provided in the grooves 35a, 35b. As shown in FIG. 6, a step portion 35a is formed at the tip end portion of each lock claw 38, and the tip end portion projects from the grooves 35a, 35b.

A recess 31c into which a head portion 61 (see FIG. 11) of a retainer 60, which will be described later, is inserted, extends in the front-rear direction and is continuous with the recess 31a above the recess 31a.

The other insertion holes 22 and 23 have the same structure as the above. 32a, 32b, 33a, 33b are concave portions,
32c to 33c are recesses for receiving the head 61 of the retainer 60, and 3
6a, 36b, 37a, 37b are grooves.

Further, projections 24a to 26a extending in the front-rear direction are provided on the upper surfaces of the insertion holes 24 to 26 (in FIG. 1) at positions symmetrical to the projections 21a to 23a. Stepped portions 24c to 26c are formed on the lower surfaces of the insertion holes 24 to 26, respectively, so that the stepped portions 24c to 26c come into contact with the stepped portions of the sub-connector to be described later to prevent the sub-connector from being pulled out in the forward direction.

Similarly to the above, the insertion holes 24 to 26 also have recesses 41a, 41b to 43a, 43b extending in the front-rear direction and a groove 45.
a, 45b to 47a, 47b are formed, and each groove 45a, 45b is formed.
A locking claw 38 is provided in each of 47a and 47b.
A retainer 60, which will be described later, is provided below the recesses 41a to 43a.
Recesses 41c to 43c into which the head portion 61 of the are inserted are formed continuously extending in the front-rear direction.

FIGS. 7 to 10 show a male sub-connector 50 which is inserted into the insertion hole 21. The sub-connector 50 has a plurality of terminal holes 51 ... Connector case 53 in which a step 52 is formed at the tip
And male connector terminals 54 mounted in the respective terminal holes 51. The male connector terminal 54 is connected to the vehicle harness H.

The terminal hole 5 is provided on the side surface of the connector case 53.
A through hole 55 penetrating along the arrangement direction of 1 is provided, and by inserting the retainer 60 shown in FIG. 11 into the through hole 55, the male connector terminal 54 mounted in the terminal hole 51 is pulled out backward. It prevents it from being lost. 61
At the head of the retainer 60, the retainer 60 projects from the side surface of the connector case 53 as shown in FIGS.

On both sides of the connector case 53,
The lock claw 3 is inserted into the concave portions 31a and 31b of the insertion hole 21.
The projections 62, 62 that are locked to the stepped portion 38 a of the No. 8 are provided, and the recess 53 a that engages with the projection 21 a of the mounting hole 21 is formed on the lower surface of the connector case 53.

In order to insert the sub-connector 50 into the insertion hole 21, the tip of the sub-connector 50 is inserted into the insertion hole 21 from the back side of FIG. Protrusion 2 provided on the lower surface of the insertion hole 21 in the recess 53a
1a, the projections 62, 62 of the connector case 53 are inserted into the recesses 31a, 31b of the insertion hole 21, and the head 61 of the retainer 60 is further inserted into the recess 31c of the insertion hole 21.
Put in.

Then, the sub-connector 50 is inserted in the direction of the arrow shown in FIG.
When the abuts on the stepped portion of the insertion hole 21, as shown in FIG.
The projections 62, 62 of the connector case 53 are locked to the stepped portion 38a of the lock claw 38 provided in the insertion hole 21, and the sub-connector 50 cannot be pulled out forward and backward, and the insertion is completed.

12 and 13 show the insertion holes 22 and 23.
7 shows the male sub-connectors 70 and 75 to be inserted into the. The sub-connectors 70 and 75 have the same configuration as the sub-connector 50, and are different in the positions where recesses 71a and 76a that engage with the protrusions 22a and 23a of the mounting holes 22 and 23 are formed on the lower surfaces of the connector cases 71 and 76, respectively. Only. 72,
Reference numeral 77 is a stepped portion, and 73 and 78 are terminal holes. This terminal hole 7
As shown in FIG. 9, male connector terminals 54 are inserted into the parts 3, 78.

14 to 16 show insertion holes 24 to 26.
It shows the male sub-connectors 80, 81, 82 to be inserted into the connector, 83 to 85 are connector cases, and 86 to 88.
Is a stepped portion, and 83a to 85a are projections 24a of the insertion holes 24 to 26.
The recesses 83b to 85b that engage with the contact holes 26a to 26a are terminal holes. The male connector terminal 54 shown in FIG. 9 is inserted into the terminal holes 83b to 85b.

The sub-connectors 80, 81, 82 have exactly the same construction as the sub-connectors 50, 70, 75, and the connector case 83 of the sub-connector 80 and the sub-connector 70.
Connector case 71, sub connector 81 connector case 84 and sub connector 75 connector case 76, sub connector 82 connector case 85 and sub connector 5
No. 0 connector case 53 has the same shape, but the position of the head 61 of the retainer 60 is different, and the protrusion 21
The sub connectors 50, 70, 75, 80 to 82 are formed by the a to 26a and the recesses 53, 71a, 76a, 83a to 85a.
It can be inserted only into the predetermined insertion holes 21 to 26, and will not be erroneously inserted.

In the sub connector 50, if the retainer 60 is inserted into the through hole 55 from the direction of the arrow P shown in FIG. 8 and the head 61 of the retainer 60 is projected to the left side of the connector case 53, the sub connector 50 is formed. It becomes the sub connector 82. The other sub-connectors 70 and 75 also become sub-connectors 80 and 81. That is, if three types of connector cases are prepared, six types of sub-connectors can be created, and only one type of retainer 60 is required. Therefore, there are three types of molds for the connector case and one type of retainer 60. Four
This is all that is required, and this makes it cheap. Further, since the types of the connector case and the retainer 60 are small, man-hours for parts management can be reduced.

17 to 19 show a female connector frame 100. The connector frame 100 has a fitting portion 101 which is fitted into the concave portion 11 of the male connector frame 10. A concave portion 102 into which the cylindrical portion 13 of the connector frame 10 is inserted and an insertion hole 103 into which the cylinder 14 of the connector frame 10 is inserted are formed in the center of the fitting portion 101. Reference numeral 104 denotes an engaging recess that engages with the protrusion 13a of the tubular portion 13 of the connector frame 10.

A plurality of female connector terminals 105 are attached to both sides of the tubular portion 102. Insertion holes 111 to 113, 114 to 116 are formed on the lower side and the upper side of the cylindrical portion 102, and the insertion holes 111 to 116 are inserted into the insertion holes 21 to 2 respectively.
It has exactly the same configuration as 3,24 to 26.

A female sub-connector (not shown) is inserted into each of the insertion holes 111 to 116. The sub-connectors are the sub-connectors 50 and 7 shown in FIGS. 7 and 12 to 16.
It has the same structure as 0, 75, 80 to 82, and only the male terminal becomes the female terminal.

Then, the fitting portion 101 of the connector frame 100 in which the female sub-connector is fitted in each of the fitting holes 111 to 116 is fitted into the concave portion 11 of the connector frame 10, and the concave portion 102 and the insertion hole 103 of the connector frame 100 are inserted. To the cylinder portion 13 and the cylinder 1 of the connector frame 10.
Insert 4 At the time of this insertion, align the protrusion 13a of the tubular portion 13 of the connector frame 10 with the engaging recess 104,
Connector frame 100 to connector frame 10
Determine the direction to connect.

By inserting them, the connector frame 100
Is connected to the connector frame 10, the male connector terminals 54 of the connector frame 10 and the female connector terminals (not shown) of the connector frame 100 are connected.

[0032]

According to the present invention, each retainer is provided with a head projecting from the sub-connector case, and when the sub-connectors corresponding to the respective insertion holes are inserted, the recesses into which the heads enter are formed. Provided on the side wall of the insertion hole along the insertion direction,
Since each sub-connector is prevented from being erroneously inserted, it is not necessary to change the shape of the sub-connector from each other in order to prevent erroneous insertion, which reduces the number of molds used to create the connector case for the sub-connector. By making each sub-connector the same shape,
Since the number of types of parts is reduced, the man-hours for managing the parts are reduced, and an inexpensive multi-pole connector can be provided.

[Brief description of drawings]

FIG. 1 is a front view showing a male connector frame according to the present invention.

FIG. 2 is a left side view of the connector frame of FIG.

3 is a plan view of the connector frame of FIG. 1. FIG.

FIG. 4 is a sectional view showing an insertion hole.

5 is an explanatory diagram showing a direction in which a sub connector is inserted into the connector frame of FIG.

FIG. 6 is a cross-sectional view showing a lock claw.

FIG. 7 is a perspective view showing a sub connector.

FIG. 8 is a plan view of the sub-connector of FIG.

9 is a front view of the sub-connector of FIG. 7. FIG.

FIG. 10 is a side view of the sub-connector of FIG.

FIG. 11 is a plan view showing a retainer.

FIG. 12 is a perspective view showing another sub-connector.

FIG. 13 is a perspective view showing another sub-connector.

FIG. 14 is a perspective view showing another sub-connector.

FIG. 15 is a perspective view showing another sub-connector.

FIG. 16 is a perspective view showing another sub-connector.

FIG. 17 is a front view showing a female connector frame.

FIG. 18 is a plan view of the connector frame of FIG.

FIG. 19 is a left side view of the connector frame of FIG.

[Explanation of symbols]

 10 Connector Frames 21 to 26 Insertion Holes 31c Recesses 32c Recesses 33c Recesses 50 Sub-connectors 51 Terminal Holes 53 Connector Cases 54 Connector Terminals 55 Through Holes 60 Retainers 61 Heads

Claims (1)

[Claims] 1. A connector frame having a plurality of insertion holes, and a plurality of sub-connectors respectively inserted into the corresponding insertion holes, each sub-connector having a plurality of terminal holes arranged in parallel. And a connector terminal mounted in the terminal hole, the connector case is provided with a through hole along the juxtaposed direction of the terminal hole,
In a multi-pole connector in which a retainer is inserted into the through hole to prevent the connector terminal attached to each terminal hole from coming off, a head protruding from the connector case is provided on each retainer, and each insertion hole is When inserting the corresponding sub-connectors, a recess into which the head portion is inserted is provided on the side wall of each insertion hole along the insertion direction to prevent erroneous insertion of each sub-connector. Multi-pole connector.