JP3268945B2 - Connection terminal fixing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal fixing mechanism in which, for example, a plurality of connection terminals to which electric wires are connected are waterproofly and insulated and fixed in a housing.

[0002]

2. Description of the Related Art Generally, in a waterproof connector, as shown in a sectional view of FIG. 5 and a rear view of FIG. 6, for example, a plurality of terminal receiving holes 2 are formed in a housing 1 of the connector in parallel. The connection terminal 4 to which the electric wire 3 is connected is accommodated in the terminal accommodation hole 2. Partition walls 1a are provided between the terminal accommodating holes 2 on the left and right and up and down, and the accommodated connection terminals 4 are arranged separately from each other. In addition, hook portions 1b and 1c are provided at a front portion of the housing 1 to prevent the housed connection terminals 4 from slipping forward and rearward, respectively. A cylindrical waterproof packing 5 inserted into the electric wire 3 is fitted to a rear portion of the terminal receiving hole 2, and the terminal receiving hole 2 is waterproof at a rear portion.

[0003]

However, in the above-mentioned conventional example, it is necessary to insert a waterproof packing 5 for each connection terminal 4 in order to waterproof the terminal receiving hole 2, but the partition 1a is required. There is a limit in reducing the thickness of the housing 1, and furthermore, it is necessary to secure a space for accommodating the waterproof packing 5, so that it is extremely difficult to make the housing 1 smaller than a certain size.

An object of the present invention is to solve the above-mentioned problems,
It is an object of the present invention to provide a connection terminal fixing mechanism that reduces the size of a housing, facilitates waterproofing inside the housing, and prevents contact between the connection terminals.

[0005]

According to the present invention, there is provided a connection terminal fixing mechanism for achieving the above object, in which a plurality of electric wires are connected in a housing composed of a main body and a lid and fitted to a mating connection terminal. In the connection terminal fixing mechanism in which the wire connection portion of the connection terminal is provided, at least one of the main body and the lid is provided with a partition wall for partitioning between the built-in connection terminals in parallel, and the front and rear of the connection terminal are removed. And a connecting portion is provided in the partition wall, and an electrically insulating and waterproof adhesive material is filled between the main body and the lid.

[0006]

In the connection terminal fixing mechanism having the above-mentioned structure, the electric wires are connected between the main body and the lid, and the parallel connection of the connection terminals of the connection terminals for fitting the mating connection terminals is ensured. Fill the surrounding area with an adhesive material to perform waterproofing.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 is a partially cutaway perspective view of the present embodiment. A housing 11 includes a main body 12 and a lid 13, which are formed of a synthetic resin material.
The housing 11 houses, for example, four connection terminals 15 to which the electric wires 14 are connected.

The main body 12 is provided with a flat terminal mounting portion 19 on which the connection terminal 15 is mounted and a terminal holding portion 20 for fitting an intermediate portion of the connection terminal 15. The terminal holding portion 20 has an insertion hole 21 through which the insertion end of the connection terminal 15 is inserted. The insertion holes 21 have a predetermined interval so that the connection terminals 15 are sufficiently electrically insulated and arranged as densely as possible. Further, locking portions 22 project from both side edges of the terminal mounting portion 19, and positioning projections 23 and locking projections 24 are provided on the upper surface of each locking portion 22.

On the other hand, the lid 13 has a U-shaped cross-section which is placed on the upper surface of the connection terminal 15, and protrudes from both side edges of the lid 25 and overlaps with the locking portion 22 of the main body 12. And a positioning hole 27 and a locking hole 28 through which the positioning projection 23 and the locking projection 24 of the main body 12 are inserted, respectively.

The connection terminal 15 is formed by pressing a single conductive metal plate and is inserted into a receiving terminal on the mating side, and a rectangular cylindrical intermediate portion 3 held by the main body 12.
2 and an electric wire connecting portion 33 for connecting the electric wire 14. The electric wire connection part 33 is composed of a core wire crimping part 33a and a sheath crimping part 33b, and the core wire crimping part 33a has an electric wire 1
The four core wires 14a are crimped, and the sheath 14b of the electric wire 14 is crimped to the sheath crimping portion 33b.

FIG. 2 is a perspective view showing the inside of the lid 13. The lid 25 is provided with a partition wall 63.
A hooking groove 64 is formed between them to fit the electric wire connection portion 33 of the connection terminal 15. The partition wall 63 and the retaining groove 64 may be provided on the main body 12 side or may be provided only on the main body 12.

Further, the periphery of the connection terminal 15 between the main body 12 and the lid 13 is filled with, for example, butyl rubber 35, which is an electrically insulating and waterproof adhesive material.

When assembling the connection terminal fixing mechanism configured as described above, first, butyl rubber 35 is applied to the terminal mounting portion 19 of the main body 12 and the insertion end 31 of the connection terminal 15 is inserted into the insertion hole 21 of the main body 12. , While pressing the intermediate portion 32 into the terminal holding portion 20, while connecting the connection terminal 15 to the butyl rubber 35.
Place on top of. Further, the lid portion 25 of the lid 13 coated with butyl rubber 35 is put on the inside, and the positioning projections 23 and the locking projections 24 of the main body 12 are inserted into the positioning holes 27 and the locking holes 28 of the lid 13, respectively.

When covering the lid 13, the main body 1
2. It is preferable that the butyl rubber 35 applied to the lid 13 is pressed so strongly that the seam between the main body 12 and the lid 13 protrudes. As a result, the periphery of the connection terminal 15 is sufficiently filled with the butyl rubber 35, and the main body 12 and the lid 13 are firmly adhered by the butyl rubber 35 without any gap. Further, the positioning projection 23 and the positioning hole 27 are fitted in the horizontal direction to be fixed, and the locking projection 24 and the locking hole 28 are locked in the vertical direction. Since the housing 11 is filled with the butyl rubber 35, there is no possibility that the housing 11 will be flooded from the outside. In addition, the partition wall 63 reliably insulates the connection terminals 15 from each other, and the retaining groove 64 prevents the connection terminals 15 from coming off, so that the electrical insulation and the locking force are further improved.

The main body 12 and the lid 13 need not be separate from each other as in the embodiment, but may be connected by a hinge.

This connection terminal fixing mechanism can be assembled manually, but as shown in FIG.
2 can be mounted on a belt-like film 41 and mechanically assembled while sequentially supplying them. In this case, it is preferable that butyl rubber 35 is applied to the inner surface of the main body 12 in advance, and a release paper 42 is applied. When attaching the connection terminal 15 to the main body 12, the release paper 4
Remove 2 before use. If the film 41 has releasability from the butyl rubber 35, the use of the release paper 42 becomes unnecessary.

The connection terminal fixing mechanism assembled in this manner is used, for example, by mounting it on a second housing 51 as shown in the perspective view of FIG. The second housing 51 is formed of a synthetic resin material into a substantially rectangular cylindrical shape, and inside thereof is formed, for example, a double-row double-stage through-hole for inserting the housing 11 of the connection terminal fixing mechanism according to the present embodiment. ing.
For example, four sets of housings 11 incorporating the connection terminals 15 are attached to the second housing 51, and are fixed by a lock mechanism (not shown). A single rubber waterproof packing 52 surrounding the front surfaces of all the housings 11 is attached from the front side, so that the periphery of each housing 11 is waterproofed.

Thus, a plurality of housings 11 can be mounted on the housing 51, and a connector having a very high-density terminal structure can be realized. Further, the presence of the waterproof packing 52 blocks water before and after the housing 51.

[0019]

As described above, in the connection terminal fixing mechanism according to the present invention, the wire connection portions of the plurality of connection terminals to which the wires are connected are arranged in parallel in the housing without contacting each other, and the gap is adhered to the gap. Since the material is filled, insulation, waterproofing, and hooking work can be performed collectively, thereby improving workability. Further, since the main body or the lid is provided with a partition wall for partitioning the connection terminals and a hook for locking the connection terminals in the front-rear direction, the insulation and the hooking force between the connection terminals can be improved. In particular, since it is not necessary to attach a waterproof member to each connection terminal, the connection terminals can be densely arranged as long as the insulation between the connection terminals is not impaired, and the housing can be reduced in size.

In the connection terminal fixing mechanism according to the second aspect, the main body and the lid are provided with locking portions for locking the respective components.
The adhesive strength of the adhesive can be reinforced.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is a perspective view of a lid.

FIG. 3 is an explanatory view showing a state where a main body is mounted on a film for automatic assembly.

FIG. 4 is a perspective view of a usage example.

FIG. 5 is a longitudinal sectional view of a conventional example.

FIG. 6 is a rear view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Housing 12 Main body 13 Lid 14 Electric wire 15 Connection terminal 22, 26 Locking part 23 Positioning protrusion 24 Locking protrusion 27 Positioning hole 28 Locking hole 35 Butyl rubber 63 Partition wall 64 Locking groove

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Katsuji Shimazawa 1-8-1, Kotake-cho, Nerima-ku, Tokyo Inside Ryosei Denso Co., Ltd. (56) References JP-A 7-161395 (JP, A) JP-A-4-368787 (JP, A) JP-A-60-147081 (JP, U) JP-A-4-74869 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13 / 40-13/52 H01R 4/70

Claims (3)

(57) [Claims] 1. A housing comprising a main body and a lid,
Multiple connection terminals for connecting wires and mating with mating connection terminals
In the connection terminal fixing mechanism equipped with the wire connection part of
Connect the built-in connection terminals to at least one of the main unit and the lid.
In front of the connection wall and the connection terminal for partitioning the space between the members in parallel
And a hook portion for preventing rearward and rearward disengagement.
A connection terminal fixing mechanism , wherein a child is disposed in the partition wall, and an electrically insulating and waterproof adhesive material is filled between the main body and the lid . 2. The main body and the lid body each have a locking portion that locks with each other in cooperation with a mating locking portion.
3. The connection terminal fixing mechanism according to item 1. 3. The connection terminal fixing mechanism according to claim 1, wherein the adhesive material is butyl rubber.