JP2002056906A - Waterproof cover for connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterproof cover for a connector which can attain both a sure waterproof and insulation by watertightly covering a pressure connector and an extended root part of an electric cable extended from the connector. SOLUTION: The waterproof cover is for watertightly covering a pressure connector A connecting a branched electric cable from a trunk-line electric cable, and is formed with two halved synthetic resin cover structures 1, 1 each equipped with a storage concave part 11 for storing the pressure connector A at its center part and waterproof material storing concave parts 12, 12 at its both ends. These two cover structures 1, 1 are constituted to be integrally and tightly combined with the above storage concave parts facing each other, and partition walls 13... along the width direction to divide the waterproof material storing concave parts 12, 12 are equipped with fetch openings 14 for taking out electric cables 4, 5 extended from the pressure connector A. A jelly- like waterproof material 2 freely changing in shape is formed and arranged at the waterproof material storing concave parts 12... and further, the above pressure connector A is made to be covered with an insulating cover 3 and stored in the storing concave parts 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof cover used for watertightly covering a metal crimp connector for connecting a branch wire cable to a main wire in which a plurality of core wires are covered with a sheath. Things.

[0002]

2. Description of the Related Art In general, a metal crimping connector called a C-type crimping connector is often used to branch-connect a branch wire cable from a single wire cable in which a plurality of core wires are covered with a sheath. In the case of branch connection with this crimp connector, the coating of the middle part of one electric wire cable that becomes the trunk line is peeled to expose the core wire, and the core wire of the branch wire cable whose coating of the terminal part is similarly peeled is used as the core wire. After bundling and crimping the crimping connector from the outer periphery thereof and connecting the crimping connector, the outer peripheral surface of the crimping connector and the exposed portion of the core wire of the electric cable are wound and covered with insulating tape.

[0003]

The connection by the C-type crimping connector is inexpensive and effective as a reliable connection of the electric cable. However, the insulating tape can be used in a narrow space such as under the floor or in the ceiling. The winding work was very troublesome and time-consuming, and sufficient consideration was not given to waterproofing.

Therefore, the present invention achieves reliable waterproofing by branching and connecting the electric cable by the C-type crimping connector to further waterproofly cover the crimping connector and the protruding root portion of the cable extending from the crimping connector. It is a primary object of the present invention to provide a waterproof cover capable of simultaneously achieving reliable insulation.

[0005]

In order to achieve the above object, the present invention takes the following measures. That is, in the waterproof cover of the present invention, the crimping connector A for connecting the branch wire cable to the wire cable serving as the trunk line is covered in a watertight manner, and the housing recess 11 for housing the crimping connector A is provided at the center. And two half-shaped synthetic resin cover structures 1, 1 provided with waterproof material storage recesses 12, 12 at both ends.
And these two cover components 1, 1
Is configured such that the storage recesses 11 can be tightly and integrally connected with the storage recesses 11 facing each other.
The partition wall 13 that separates the waterproof members 12 from the crimping connector A is provided at the partition walls 13 along the width direction that separates the waterproof members 12.
Are provided with jelly-like waterproof members 2... Of which the form can be freely changed, and are further characterized in that the crimping connector A is covered with an insulating cover 3 and is housed in the housing recess 11. .

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The jelly-like waterproof material 2 can be freely deformed in accordance with the shape of a pressed object against an external pressing, here in accordance with the shape of an electric wire. A jelly-like or gel-like substance having physical properties that does not deform is used. As this material, for example, silicon jelly is one of the preferable materials, but polymer jelly of styrene and ethylene is easy to mold and easy to adjust the hardness from the viewpoint of price, and is harmless under the Food Sanitation Law. It is suitable because it can be insert-molded and can be co-extruded.

The upper surface of the waterproof material 2 is preferably formed with a shallow concave portion 21 for receiving an electric cable. The concave portion 21 is formed by an arc smaller than the outer diameter of the electric cable. Thereby, when the crimping connector A is stored in the storage recess 11 of the cover, the wire cable can be stably received, the closing operation of the cover components 1 and 1 can be easily performed, and the waterproofing due to the pushing force of the wire cable. The compressive deformation of the material 2 can also be secured.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIGS. 5 and 6 show an example of a metal C-type crimping connector A to which the waterproof cover of the present invention is applied. This crimping connector A is made of a metal such as brass, which is highly conductive. It is formed in a C-shaped cross section having an opening 6 formed in the axial direction. Then, the coating of the middle part of the single electric wire cable 4 serving as the main line is peeled off to expose the core wire 41, and the core wire 51 of the branch wire cable 5 whose terminal part is similarly peeled off is bundled and crimped to the previous core wire 41. The electric cables 4 and 5 are connected by inserting the crimping connector A from the outer periphery by inserting the crimping connector A from the opening 6 of the connector A.

The crimping connector A thus assembled
Is a waterproof cover according to the present invention, which is further waterproofed and insulated, and FIGS. 1 to 4 show a first embodiment thereof. In this embodiment, a waterproof cover according to the present invention is a two-part synthetic resin cover structure 1 having a storage recess 11 for storing a crimping connector A at the center and waterproof storage recesses 12 at both ends. , 1.
These two cover components 1, 1 are formed in a substantially quadrangular shape in a plan view, and as shown in FIG. 4, are folded back via a hinge portion 15, and are tightly fitted in a state where the storage recesses 11, 11 face each other. It is integrally molded so that it can be made. Further, in the folded position, the engagement claws 16 provided on the one cover structure 1 are engaged with the engagement step portions 17 provided on the inner surface of the side wall of the other cover structure 1 so that the fitting posture can be maintained. Is formed.

An outlet 14 for taking out the electric cables 4 and 5 extending from the crimping connector A to the partition walls 13... Which divide the waterproof material accommodating recesses 12 and 12 along the width direction.
... are provided. The inner diameters of the outlets 14 are slightly larger than the outer diameters of the electric cables 4 and 5, so that a jelly-like waterproof material 2 described later can be oozed out by compression from a slight gap formed between them. Is formed.

The waterproof material storage recesses 12 are provided with jelly-like waterproof materials 2 having flexibility and deformability that can be freely changed in form. The jelly-like or gel-like waterproof material 2 can be freely deformed along the shape of the electric wire when pressed from the outside, but a material having physical properties that does not flow and deform in a natural state without external pressure is used. As this material, for example, as described above, a polymer jelly of styrene and ethylene is preferable.

The upper surface of the waterproof material 2 is provided with electric cables 4 and 5
A shallow concave surface portion 21 for receiving light. The concave portion 21 is formed by an arc smaller than the outer diameter of the electric cable 4 or 5. Thereby, when the crimping connector A is stored in the storage recessed portion 11 of the cover, the electric cables 4 and 5 can be stably received, and the closing operation of the cover components 1 and 1 can be easily performed. The compressive deformation of the waterproof material 2 due to the pushing force can be secured.

In using the above waterproof cover,
First, as shown in FIG. 3, the outer peripheral surface of the contact A to which the electric cables 4 and 5 are connected is covered with an insulating cover 3 made of a synthetic resin prepared separately. In the embodiment, the insulating cover 3
Is formed by left and right C-shaped members 32, 32 connected to be able to be folded back by a hinge portion 31, as shown in FIG.
Any structure may be used as long as it can insulate the outer peripheral surface of the contact A. For example, the insulating cover 3 may be formed on the outer peripheral surface of the contact A in advance.

The contact A covered with the insulating cover 3 is accommodated in the accommodating recess 11 of one cover structure 1 as shown in FIG. , Take out the electric wires 4 and 5 and exit 14
, And the other component 1 is connected to the hinge 15
Then, the engagement claws 16 and the engagement step portions 17 are engaged with each other to hold the closed position, and the container is hermetically closed as shown in FIG. Further, in order to hold this fitting posture firmly, it is preferable to fasten and fix the outer periphery of the waterproof cover with the tightening bands 7,7. As a result, the crimp connector A is sealed inside the waterproof cover, and the waterproof material 2 is compressed by the electric cables 4 and 5 and deforms along the outer shape of the electric cable. A small gap oozes out to seal the circumference of the electric cables 4 and 5, thereby achieving perfect watertightness of the crimp connector A. In order to enhance the sealing performance between the two cover components 1 and 1, a thin waterproof packing made of rubber or the like may be interposed between the joining end surfaces of the two.

FIG. 7 shows an embodiment in which the above-mentioned waterproof cover is slightly modified. Outlets 14... For taking out the electric wires 4 serving as a trunk line are formed in a straight line. By doing so, when the wire cable 4 serving as a trunk and the branch cable 5 are housed in the waterproof cover of the present invention together with the crimping connector A, the wire 4 serving as a trunk is bent unnaturally and an unreasonable load is imposed. This can be prevented from occurring.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only these embodiments and modifications. For example, the two cover components 1 and 1 described in the above embodiment may be formed separately from each other and connected by screws or the like. Further, in the above embodiment, the fastening bands 7, 7 are used to firmly fasten the two cover structures 1, 1;
The fastening band may be omitted as long as the watertightness is sufficient due to the connection with the engaging step 17. Further, one or both of the cover components may be formed of a transparent material so that the state of the content crimping connector can be visually recognized from the outside. In addition, the present invention has the constituent features, achieves the object of the present invention, and can be appropriately modified and implemented within a range having the following effects. .

[0017]

As described above, the present invention is constructed as described above. Therefore, it is possible to secure a high degree of watertightness by completely sealing the crimping connector and the extension root portion of the wire cable extending from the crimping connector body. At the same time, high insulation can be achieved,
In addition, since it can be achieved with a simple operation of fitting the crimp connector into the cover structure and covering the other cover structure, work on site is easy and quick, and anyone without the need for advanced watertight technology is required. But there is an effect that it can be used.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a waterproof cover according to the present invention.

FIG. 2 is a perspective view of the waterproof cover.

FIG. 3 is a perspective view showing a state in which a crimp connector is fitted in the waterproof cover.

FIG. 4 is a perspective view showing a state in which the crimp connector is sealed by the waterproof cover.

FIG. 5 is a perspective view of a crimp connector used for the waterproof cover of the present invention.

FIG. 6 is a perspective view showing a state in which an electric cable is connected by the crimp connector.

FIG. 7 is an exploded perspective view showing another embodiment of the waterproof cover according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover structure 11 Storage recess 12 Waterproof material storage recess 13 Partition 14 Outlet 2 Waterproof material 21 Concave part 3 Insulation cover 4 Electric cable 5 Branch electric cable A Crimp connector

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hisakura Yamagata 1-3-5, Tsurumi, Tsurumi-ku, Osaka-shi Nichifu Terminal Industry Co., Ltd. (72) Inventor Takeshi Kagida 1-3-58, Tsurumi, Tsurumi-ku, Osaka-shi No. F-term in Nichifu Terminal Industry Co., Ltd. (Reference) 5E085 BB02 BB12 CC03 CC05 DD14 GG07 GG40 JJ13 5G375 AA02 BA26 BB48 CA02 CA14 DB09 DB44

Claims (2)

[Claims] A crimping connector (A) for connecting a branch wire cable from a wire cable serving as a trunk line in a watertight manner, and a storage recess (11) for storing the crimping connector (A) in a center portion. Two half-split synthetic resin cover structures (1), (1) with waterproof material storage recesses (12), (12) at both ends
Formed by these two cover components (1), (1)
Are configured so that they can be tightly and integrally connected with the storage recesses (11) facing each other, and the waterproof material storage recesses (1
An outlet (14) for taking out the electric cable (4), (5) extending from the crimp connector (A) is provided in a partition wall (13) along the width direction that separates 2) and (12). The waterproof material storage recess (12) has a jelly-like waterproof material whose form can be freely changed.
(2) are arranged and formed, and the crimp connector (A)
A waterproof cover for a connector in which an insulating cover (3) is placed over the housing and housed in the housing recess (11). 2. A waterproof cover for a connector according to claim 1, wherein a shallow concave portion (21) for receiving an electric cable is formed on an upper surface of said waterproof material (2).