JP2001148264A - Electric connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to combine connection terminals of different kinds into one connector. SOLUTION: A plurality of first male connection terminals 6 with large current capacity having a wire 5 connected at the rear end are housed in a terminal housing hole 4 of a large-sized first housing 2, and these first connection terminals 6 are locked by a rear holder 3 mounted at the rear part of the first housing 2. The second housing 7 is inserted into the bottom part of the first housing 2 from an opening 2a formed at the bottom of the first housing 2, and locked with a locking means. In a terminal housing hole 8 for the second housing 7, a plurality of second male connection terminals 10 with current capacity less than that of the first connection terminals 6 and having a wire 9 connected at the rear end are housed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector having a plurality of types of connection terminals.

[0002]

2. Description of the Related Art Conventionally, when a power supply line and a signal line are connected to the same electric device, if their current capacities are largely different, a connector is usually provided separately.

[0003] Since the size of the connection terminals greatly differs depending on the magnitude of the current capacity, if these connection terminals are intentionally mixed in one housing, the noise of the power supply line is likely to be superimposed on the signal line, and the assembly work is difficult. Becomes extremely difficult.

[0004]

Therefore, in such a case, two connectors for the power supply and the signal transmission are usually required to be used separately, and the number of parts, the number of wirings, the price and the like increase. There are drawbacks.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an electrical connector in which different types of connection terminals are combined.

[0006]

According to an aspect of the present invention, there is provided an electrical connector according to the present invention, wherein a large-sized housing accommodating a large-sized first connection terminal is provided in a small-sized housing smaller than the first connection terminal. A small housing accommodating the second connection terminal is assembled, and the connection portions of the first and second connection terminals are arranged in the openings of the two housings that fit with the mating connectors, facing the mating connector. It is characterized by having done.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. FIG. 1 is a plan view of an electric connector 1 according to a first embodiment in which two types of male connection terminals are accommodated.
FIG. 3 is a side view, FIG. 3 is a cross-sectional view taken along line AA of FIG. 1, and an electric connector 1 has a large first housing 2 as shown in a front view of FIG. And a rear holder 3 mounted from behind. The terminal housing hole 4 in the upper part of the first housing 2 accommodates a plurality of male first connection terminals 6 having a large current capacity for a power source and having an electric wire 5 connected to the rear end, for example.

Then, on the bottom of the first housing 2,
The second housing 7 is inserted into the first housing 2 through an opening 2 a formed in the bottom wall of the first housing 2, and is held by the rear holder 3. The terminal housing hole 8 of the second housing 7 has a plurality of male second connection terminals 10 each having a smaller current capacity than the first connection terminal 6 and a signal transmission wire 9 connected to the rear end. And these second connection terminals 10 are connected to the second housing 7.
Is locked by a locking claw 7a.

The first and second connection terminals 6 and 10 are connected to the mating connectors of the housings 2 and 7 with mating connectors.
The tongue-shaped insertion portions are arranged facing the mating connector. The second connection terminal 10 is located ahead of the first connection terminal 6.

The bottom wall of the rear holder 3 is provided with an opening through which the second housing 7 is inserted from below. A lock engaging portion 11 for locking the mating connector at the time of fitting with the mating connector is provided on both inner sides of the front portion of the first housing 2, and the first locking portion 11 is provided at the upper portion. A hole 12 is provided for inserting a jig when the connection terminal 6 is extracted.

FIG. 5 is an explanatory view of the assembling process. The second housing 7 in which the second connection terminal 10 is incorporated is inserted into the first housing 2. At this time, the second housing 7 and the first housing 2 are locked by locking means such as locking projections and locking grooves (not shown). Next, rear holder 3
Is inserted from the rear of the first housing 2 and the rear holder 3 is attached to the first housing 2 using the first claw 3a.
Is temporarily locked. At this stage of the temporary locking, when the first connection terminal 6 is pushed into the terminal housing hole 4 of the first housing 2 from the rear portion of the rear holder 3, the state shown in FIG. 5 is obtained.

Then, when the rear holder 3 is pushed into the first housing 2, the rear holder 3 is brought into the final locking state shown in FIG. At this time, a locking arm 3c provided on the rear holder 3 is inserted into each terminal receiving hole 4, and the first connection terminal 6 is locked by a claw formed on the locking arm 3c, and the connection terminal 6 is moved. Is prevented.

In this way, the first, different current capacities
Since the second connection terminals 6, 10 can be easily housed in the same first housing 2, and these connection terminals 6, 10 are held by separate housings 2, 7, respectively, the connection terminals 6, 10 The housings 7 are separated from each other by the housing 7, and the interval between them is increased, so that the risk of noise mixing from the power supply line to the signal line is reduced.

FIG. 6 is a plan view of a mating electrical connector 21 according to the second embodiment, in which female connection terminals corresponding to the first and second connection terminals 6, 10 of the first embodiment are housed. , FIG.
8 is a side view, FIG. 8 is a cross-sectional view taken along the line BB of FIG. 6, and the electric connector 21 is the electric connector 1 of the first embodiment.
Is to be fitted.

The electric connector 21 comprises a large first housing 22 and a rear holder 23 as shown in the front view of FIG. 9, and a female third connection terminal 25 having an electric wire 24 connected to the rear end thereof. Terminal receiving hole 26 at the top of the housing 22
It is inserted inside. Further, a fourth housing 30 in which a female fourth connection terminal 28 having a wire 27 connected to the rear end is accommodated in a terminal accommodation hole 29 is fixed to a lower portion of the first housing 22. . That is, the third connection terminal 25 is inserted into the upper portion of the first housing 22 together with the rear holder 23, and the fourth housing 30 is mounted on the mounting portion provided in the lower portion of the first housing 22.
Is fixed to the first housing 22 by the rear holder 23.

On both sides of the first housing 22, a lock arm 31 for locking with the lock engagement portion 11 of the mating connector is provided. Further, a hole 32 provided in the upper part of the first housing 22 is for inserting a main body jig when conducting continuity of the third connection terminal 25, and the hole 33 is provided in the third connection terminal 25. This is for inserting a jig when extracting the jig.

FIG. 10 is an explanatory view of an assembling process of the electric connector 21. After the fourth housing 30 is attached to the first housing 22, the rear holder 23 is connected to the first holder 22 by using the first claw 23a of the rear holder 23. Third housing 2
Temporarily lock to 2.

At this stage, the third connection terminal 25 is inserted into the first housing 22, and then the rear holder 23 is pushed into the first housing 22 by the second claw 23b as shown in FIG. As shown below. At this time, the third connection terminal 2 is held by the locking arm 23c of the rear holder 23.
5 are individually locked in the terminal housing holes 26 of the first housing 22.

When the electric connector 1 of the first embodiment and the electric connector 21 of the second embodiment are fitted together, the electric wires 5 and 24 formed by the first connection terminal 6 and the third connection terminal 25 are electrically connected. , And at the same time, the electric wires 9 and 27 by the second connection terminal 10 and the fourth connection terminal 28 are electrically connected. At the same time, the lock engagement portion 11 and the lock arm 31 are locked, so that the two electrical connectors 1 and 21 cannot be separated inadvertently.

In the first and second embodiments described above, the connection terminals 6, 10, 25, and 28 are connected to the round electric wires 5, 9, 24,
27 was crimped, but instead of this, the connection terminals 6, 1
A flat cable having a foil conductor can be connected to 0, 25, and 28.

FIG. 11 uses a flat cable,
Electrical connector 40 of the third embodiment, which is substantially the same as that of the third embodiment.
The small sixth housing 42 is fixed to the lower part of the large fifth housing 41.

A plurality of female fifth connection terminals 44 are housed in the terminal housing holes 43 of the fifth housing 41, and a synthetic resin material is used between bases of these connection terminals 44. The block part 45 is molded. Foil conductors 47 of a flat cable 46 are connected to the respective rear ends of the connection terminals 44 by welding or the like, and the periphery of these connection portions is covered with a synthetic resin material 48. The connection terminal 44 is fixed by engaging a locking arm 49 provided on the housing 41 with the block portion 45.

On the other hand, a plurality of female sixth connection terminals 61 are housed in the terminal housing holes 50 of the sixth housing 42. Block 5 provided at the base of connection terminal 61
2 is locked to the housing 42 by means (not shown), the foil-like conductor 54 of the flat cable 53 is connected to the rear end of each connection terminal 61 by welding, and the periphery of the connection portion is covered with a synthetic resin material 55. .

In the above-described first to third embodiments, one small housing 7, 30, 42 is combined with the large housing 2, 22, 41, respectively. 7, 30, and 42 may be plural. Furthermore, it does not matter if the plurality of small housings 7, 30, 42 are not of the same type.

[0025]

As described above, the electrical connector according to the present invention can be obtained by assembling a small housing containing a small second connection terminal to a large housing containing a large first connection terminal. Since the number of connectors can be reduced, the number of components is reduced, and the assembling and wiring process is facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment.

FIG. 2 is a side view.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a front view of the first housing in a state where the second housing is assembled.

FIG. 5 is an explanatory diagram of an assembling process.

FIG. 6 is a plan view of the second embodiment.

FIG. 7 is a side view.

FIG. 8 is a sectional view taken along line BB of FIG. 6;

FIG. 9 is a front view of the third housing in a state where the fourth housing is assembled.

FIG. 10 is an explanatory diagram of an assembling process.

FIG. 11 is a sectional view of the third embodiment.

[Explanation of symbols]

 1, 21, 40 Electrical connector 2, 22, 41 Large housing 3, 23 Rear holder 5, 9, 24, 27 Electric wire 6, 10, 25, 28, 44, 51 Connection terminal 7, 30, 42 Small housing 46, 53 Flat Cable 47, 54 Foil conductor

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[Procedure amendment]

[Submission date] November 24, 1999 (1999.11.
24)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 5

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

Means for Solving the Problems An electric connector according to the present invention for achieving the above object, the large housing accommodating a large connection terminals, receiving the small size of the connection terminal than the connection terminals of the large And a connection portion for the large and small connection terminals is arranged in the opening of the two housings that fits with the mating connector, facing the mating connector.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0025

[Correction method] Change

[Correction contents]

[0025]

Electrical connector according to the present invention as described in the foregoing is that the one connector by assembling a compact housing that houses a small connecting terminals on a large housing accommodating a large connection terminals , The number of parts is reduced, and the assembling and wiring process is facilitated.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinji Yamaguchi 1-8-1, Kotake-cho, Nerima-ku, Tokyo Ryosei Denso Co., Ltd. (72) Inventor Kenichi Suzuki 1--8, Kotake-cho, Nerima-ku, Tokyo No. 1 Rishisei Denso Co., Ltd. F term (reference) 5E087 EE17 FF03 FF12 GG15 GG25 GG31 GG32 GG34 HH04 JJ08 JJ09 PP01 RR23

Claims (5)

[Claims] 1. A small housing containing a small second connection terminal smaller than the first connection terminal is assembled to a large housing containing a large first connection terminal. An electrical connector, wherein connection portions of the first and second connection terminals are arranged in an opening portion to be fitted with a mating connector so as to face the mating connector. 2. The electrical connector according to claim 1, wherein said small housing is inserted into said large housing. 3. The electrical connector according to claim 1, wherein the small housing is fixed to a side of the large housing. 4. The electrical connector according to claim 1, wherein said small housing is locked by a rear holder coupled to a rear portion of said large housing. 5. The electrical connector according to claim 1, wherein the first connection terminal is used for a power supply, and the second connection terminal is used for a signal.