JPH039263Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a high-density multi-pole connector used for connecting wire harnesses and the like.

Conventional technology Wire harnesses generally have a structure in which a large number of electric wires are bundled together by tape, and branch lines are derived from a main line.The main line is routed in the space of a car and fixed with a stopper, and the branch lines The female or male connector provided at the end is connected to male or female connectors provided on various electrical components.

However, according to this type of female/male connector connection method, there are a large number of connectors in areas where a large number of switches and meters are concentrated, such as an automobile instrument panel, and it takes a lot of effort and time to connect them. This results in a large amount of space being required.

Therefore, as shown in Fig. 8, by adopting female and male high-density multi-pole connectors c and d equipped with multiple terminal accommodation chambers a and b each containing several dozen or more pins, various electrical components can be It is also conceivable to consolidate a large number of connectors with a small number of pins per connector.

Problems to be Solved by the Invention In the above-described high-density multi-pole connector, a large number of terminal housing chambers a and b are integrally formed.

Therefore, when inserting the terminal, the connecting wires become tangled, making it difficult to insert the terminal, and since the terminal has too many poles, a large amount of force is required to connect and disconnect the connectors c and d.

In addition, since the terminal accommodation chambers a and b are integrally molded, if the number of circuits is small due to differences in vehicle type, class, etc., a large number of empty spaces will be created, resulting in waste. If connectors were manufactured using the same methods, the number of products would increase, making management difficult.

Means to Solve the Problems The purpose of this invention is to solve the above problems, to consolidate the connectors, to make it easy to insert the terminals, and to increase the number of pins depending on the vehicle type, grade, etc. The solution is to provide a high-density multi-pole connector that can be easily increased or decreased.
Insertion guides are provided on both sides of the multi-pole connector housing that accommodates multiple terminals, protruding perpendicular to the terminal insertion direction, and inside the insertion guides there are locking claws extending in the terminal insertion direction and on the inside of the tips. A flexible locking arm is provided between the insertion guides, and an engagement portion that fits with the insertion guide and an engagement groove or hole that engages with the lock claw are provided on both side walls between the insertion guides. Another multi-pole connector having the terminal is removably fitted from the front in the insertion direction of the terminal, and the plurality of multi-pole connectors are combined into one.

An insertion guide that protrudes from one multi-pole connector can be provided on one or both of the top and bottom of the connector, and the insertion guide can be made sufficiently long to fit several multi-pole connectors in multiple stages. In this case, each multi-polar connector to be fitted can be locked with the insertion guide.

Function The high-density multi-pole connector of the present invention combines several multi-pole connectors by fitting them into an insertion guide.
Since it forms one high-density connector, it ensures the effectiveness of consolidation, and at the same time limits the number of pins per multi-pole connector to be fitted, reducing the risk of entanglement of connecting wires when inserting the terminal. Difficulties can be eliminated. Moreover, since the connector is fitted into the insertion guide in the opposite direction to the direction in which the terminal is inserted, that is, in the direction in which the wires extend, the connector can be easily locked by passing the wire between the insertion guides and pulling it toward you. can.

In addition, among the several multi-pole connectors, one connector is dedicated to the basic electrical component circuits and branch circuits for distributing power, regardless of the car model or class, and the rest are dedicated to the branch circuit for distributing power, regardless of the car model or class. By using the present invention for circuits to be revised or abolished, such as room lamp control units, diffuser control units, etc., it is possible to easily construct a high-density multi-pole connector with a number of poles corresponding to specifications.

Furthermore, the number of pins of multi-pole connectors to be combined can be selected and explained according to specifications such as vehicle type and grade, so that there will be no vacant space in the terminal accommodation chamber, so there is no waste and the number of terminals is There are no connection errors.

Embodiment In FIG. 1, M indicates a male high-density multi-polar connector, and F indicates a female high-density multi-polar connector.

The male high-density multi-pole connector M includes three multi-pole connector housings 1A and 1 made of an insulating material.
B and 1C are combined into one by an insertion guide 2. A female terminal 5 connected to the end of the electric wire 4 is inserted into the terminal accommodating chamber 3 of each connector housing, and is locked by known means.

As shown in FIGS. 2a to 2c, the insertion guide 2 is provided to protrude upward and downward from both side walls of the rear end of the connector housing 1A so as to be orthogonal to the insertion direction of the female terminal 5. The insertion guide 2 is
It is formed into an L-shaped cross section with a stopper part 6 for the multi-pole connector housings 1B and 1C at its upper and rear ends, and has a flexible connector inside that extends in the terminal insertion direction and has a locking claw 7a at its tip. A locking arm 7 is provided on the side wall of the connector housings 1B, 1C, and an engaging groove (or A recess) 9 is formed. Further, the rear end portion of the engaging portion 8 has a tapered surface 8a, so that it can be smoothly fitted with the lock pawl 7a. Note that instead of the engagement groove 9, a hole may be provided in the side wall of the housing to engage with the lock pawl 7a.

Reference numerals 10 and 11 are rear holders for preventing the female terminal 5 from coming off backward, and a common board 12
A plurality of terminal presser rods 13 are protruded in a comb-teeth shape. Corresponding to these terminal presser bars 13, vertical grooves 14 for accommodating the common board 12 are formed in the left and right side walls of each of the connector housings 1A to 1C, and a plurality of through holes 15 are opened in the vertical grooves 14. It has a hole.

Reference numeral 16 denotes a nut holder projecting from the center of the connector housing 1A, into which a nut 17 is embedded and fixed. Note that a female terminal 5' for power distribution is inserted and fixed into the upper connector housing 1B.

A female high-density multi-pole connector F is connected to a connector housing 1 constituting a male-type high-density multi-pole connector M.
Connector housings 18 corresponding to A to 1C are integrally formed, and a housing portion 19 for fitting the connector M is provided at the front end thereof.

Terminal housing chamber 2 of connector housing 18
0, a male terminal 21 corresponding to the female terminal 5 is inserted and fixed therein, and the connector housing 18 has a rearward protrusion 22 at its upper portion. In this rear protrusion 22, a fourth
A branch terminal 23 or 23' as shown in Figures a and b is locked by press-fitting or other means.

The branch terminal 23 is a bus bar formed by stamping a rigid sheet metal such as brass into an H shape, and has four tab-shaped contacts 25 on both sides of the connecting piece 24.
has. The branch terminal 23' is formed by bending the contact 25 at right angles to the connecting piece 24 to form a U-shape. Locking projections 24a are provided on both sides of the connecting piece 24 of each terminal, and a press-fit locking projection 25a is provided at the base end of the tab-shaped contact terminal 25 on one side. In addition, 2
0a is a slit for insertion into the connecting piece 24 provided between the terminal housing chambers 20, 20. Thereby, the insertion angle of the female terminal 5' can be changed by 90 degrees in accordance with the arrangement of the terminal storage chamber 20.

In addition, in the center of the connector housing 18,
A tightening bolt 26 for the nut 17 of the male high-density multi-pole connector M is attached via a bolt holder 27, and a guide frame 28 (third
(see figure) is formed.

On the other hand, locking holes 29 are opened in the upper and lower circumferential walls of the housing portion 19 of the connector F.
The connector housings 1B and 1C are engaged with locking claws 30 protruding from the outer peripheral walls of the connector housings 1B and 1C, and can be temporarily locked. In FIG. 3, 10' and 11' are rear holders for the connector F, 14' is a vertical groove, and 15' is a through hole for mounting them.

Next, the assembly and operation of the male and female high-density multipolar connectors M and F will be explained.

In the connector M, if the connector housings 1B and 1C are fitted between the upper and lower insertion guides 2, 2 formed integrally with the connector housing 1A so as to be pulled from the front toward the front in the insertion direction of the terminal, the engaging portion 8
abuts against the stopper portion 6, and the lock pawl 7a fits into the engagement groove 9, and as shown in FIG. 2b, they are locked and integrated into one.

Next, the terminal presser rods 13 of the rear holders 10 and 11 are inserted through the left and right through holes 15 of each of the housings 1A to 1C. At this time, if each housing is not installed in the correct position, the vertical grooves 14 will not be aligned and a single groove will not be formed, so the terminal presser rod 13 cannot be inserted. Even if the female terminals 5, 5' are pulled through the electric wire 4 or pushed backwards when connected to the male terminal 21, the terminal presser rod 13 acts as a stopper and prevents the female terminals from coming off. Furthermore, if one of the female terminals 5 or 5' is incompletely inserted and protrudes from the terminal accommodation chamber 3 or 3', the presser bar 13 cannot be inserted. Incomplete insertion of 5' can be prevented.

Furthermore, since the rear holders 10 and 11 have their terminal presser rods 13 integrally protruding from the common board 12, the board 12 fits into the vertical groove 14 and prevents wobbling between the connector housings 1A to 1C. There is.

The fitting of the connector housings 1B and 1C into the insertion guide 2 is done through the respective terminal accommodation chambers 3.
Alternatively, the operation can be carried out after inserting and fixing the female terminals 5, 5' into the terminals 3', so that a large number of electric wires 4 do not become entangled, and the work is easy.

When this connector M is lightly fitted into the housing portion 19 of the connector F, the locking pawl 30 and the locking hole 29 are engaged, and both connectors M and F are temporarily locked. At the same time, the tip of the nut holder 16 is connected to the guide frame 2 at the tip of the bolt holder 27 as shown in FIG.
Enter 8. Therefore, by rotating the tightening bolt 26 of the connector F, the connector M advances toward the connector F side, and the female and male terminals 5, 5', 21
Despite the extremely large number of poles, it fits smoothly and
Can be connected. Note that if such bolts 26 and nuts 17 are not provided, the connectors (housings) 1A, 1B,
1C only needs to be fitted individually, and the work can be easily carried out in the same way as a normal multi-pole connector, and the advantages of the combined high-density multi-pole connector are exhibited here as well.

Next, since the aforementioned branch terminals 23, 23' are incorporated in the terminal storage chamber 20 of the connector F, the wiring form of the electric wires connected to the connectors M, F can be simplified. In other words, the conventional high-density multi-pole connector (see Figure 8)
Then, as shown in FIG. 6a, it was necessary to perform a joint 31 between the electric wires 4 led out from the female high-density multipolar connector c. In addition, 32
indicates an external connector. However, the connector F in this embodiment has branch terminals 23, 23'.
By inserting the female terminal 5' into the contact 25, the joint 31 portion is absorbed into the inside of both connectors F and M, and as shown in FIG. 6b, the conventional joint wire 4' will be abolished.
As a result, there are no joints between the electric wires connected to different connectors, so the circuit can be divided and assembled, and the production cost of the wire harness can be reduced.

Figures 7a to 7e each show other embodiments of branch terminals applied to combined connectors.
That is, the branch terminals 31 and 3 shown in a and b
2 is the one in which the contact piece 25 on one side of the H-shaped branch terminal 23 shown in FIG. Figure b is the one bent in an L shape in the opposite direction. Further, the branch terminals 33, 34, 35 shown in c to e are each punched into a double H shape with three contacts 25 provided on both sides of the connecting piece 24, and c is a double H-shaped one with three contacts 25 provided on both sides of the connecting piece 24. is bent into a U-shape, d is one in which one of the connecting pieces 24 is bent into an L shape, and the contact 25 portion of the L-shaped bent portion is bent outward, and e is inward and top and bottom are bent. The contacts 25 are arranged to face each other.
In this way, the number of poles of the contacts 25 provided on the connecting piece 24 can be freely increased or decreased as necessary, and the three-dimensional arrangement of the contacts 25 can be changed by arranging the corresponding terminal accommodation chambers 20. .

Effects of the invention As is clear from the above, according to the invention, several multi-pole connectors are combined using an insertion guide to form one high-density multi-pole connector. By changing part of the multi-pole connector to be combined, the number of pins can be increased or decreased, eliminating the difficulty of inserting terminals due to multi-pole design, and creating a high-density multi-pole connector that eliminates waste. can be provided.

[Brief explanation of the drawing]

Fig. 1 is an overview perspective view showing the female and male parts of the high-density multi-pole connector of the present invention separated; Figs. 2 a to c are enlarged perspective views showing the assembly of the male connector housing of the above; and Fig. 3 is the same as the above. FIGS. 4a and 4b are enlarged perspective views of the branch terminal, respectively. FIG.
Figures a and b are wiring diagrams showing the same branching function as above, Figures 7 a to e are perspective views showing other aspects of the branch terminal, and Figure 8 is a perspective view of a conventional example in a separated state. . M...Male high-density multi-pole connector, F...Female high-density multi-pole connector, 1A, 1B, 1C...Multi-pole connector housing, 2...Insertion guide, 7...
...Latching arm, 7a...Lock claw, 8...Engagement part, 9
...Engagement groove (or hole).

Claims (1)

[Scope of utility model registration request] Insertion guides are provided on both sides of the multi-pole connector housing that accommodates multiple terminals, protruding perpendicular to the terminal insertion direction, and inside the insertion guides there are locking claws extending in the terminal insertion direction and on the inside of the tips. A flexible locking arm is provided between the insertion guides, and an engagement portion that fits with the insertion guide and an engagement groove or hole that engages with the lock claw are provided on both side walls between the insertion guides. 1. A high-density multi-pole connector characterized in that another multi-pole connector having a terminal is detachably fitted from the front in the insertion direction of a terminal, and a plurality of multi-pole connectors are combined into one.