JP2002134954A - Protection structure of wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the protection structure of a wire that can prevent the wire of a ribbon cable from directly coming into contact with the sharp edge of the plate end edge of a flat body for electric equipment such as a shield plate and a heat sink for preventing damage in the wire, and can keep durability for a long time without deterioration and falling-off due to heat generated from the flat body such as the heat sink. SOLUTION: The wire 5 of such as a ribbon cable in the flat body 3 for electric equipment such as the shield plate and heat sink comes into contact with the plate end edge 31. A notching 32 is formed near the plate end edge 31 so that the notching bites into the inside. A heat-shrinkable tube 6 is inserted into a thin plate piece section 33 formed between the notching 32 and plate end edge 31, heat is applied to the heat-shrinkable tube 6, the heat-shrinkable tube 6 is shrunk for sticking to the thin plate piece section 33. The shrunk heat-shrinkable tube 6 prevents the wire 5 from directly coming into contact with the plate end edge 31 of the flat body 3 for electric equipment, thus protecting the wire 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sharp edge of a plate-like body for electric equipment such as a shield plate or a heat sink.
The present invention relates to a wire wire protection structure that protects a wire such as a ribbon wire from being damaged when the wire hits the wire.

[0002]

2. Description of the Related Art Conventionally, as a protective structure of this kind, a wire such as a ribbon wire does not hit a sharp edge of a plate edge of an electric device such as a shield plate or a heat sink. Extend the length of the wire and fix it, or stick a vinyl tape or nonwoven fabric on the sharp edge of the plate edge of the plate to prevent the wire line from directly hitting the sharp edge of the plate edge However, when the plate-like body is a heat sink or the like, heat is applied, and the adhesive such as tape is deteriorated and peels off, so that the wire wire cannot be sufficiently protected. There was a problem.

[0003] In Japanese Utility Model Laid-Open No. 2-98412,
A terminal processing unit of a rat-proof cable is described. this is,
As shown in FIG. 3, a metal tape 104 is taped on an inner sheath 103 that bundles and covers two or more insulated core wires 102, and an outer sheath 105 is further coated on the metal tape 104. At the end of the rat-proof cable, peel the outer sheath 105 at the end of the rat-proof cable,
When the metal tape 104 and the inner sheath 103 are
2 is exposed to the required length, peeled and cut, and then treated by covering the heat-shrinkable tube 108 with the outer sheath 105, the metal tape 104, and the inner sheath 103. However, in this case, when the rat-proof cable hits a shield plate or the like, the heat-shrinkable tube 108 has to be passed through the cable each time to cover the place where the cable hits, so that it is troublesome and troublesome. There was a problem that is.

Further, Japanese Patent Publication No. 2-58750 discloses that
It describes a watertight insulation device for a wire connection terminal and a watertight insulation connection method for a wire. This is shown in FIGS. 4 (a), (b) and (c).
(D) As shown in FIGS. 5 (a), 5 (b), and 5 (c), a pair of male and female electric wire connection terminals formed so as to perform electrical connection by being inserted and fitted to each other. 201,
A pair of male and female insulators A to insert and cover 211
B, the connecting portion 201b and the locking portion 201c of the metal connecting terminal 201 having the electric wire holding portion 201a, the male or female connecting portion 201b, and the retaining locking portion 201c.
2 that does not pass through the wire holding portion 201a
02d, an intermediate portion 202b, a cover portion 202a in which the holding portion 201a of the connection terminal 201 is internally fitted, and a male extension cylindrical portion 202c in which the other extension cylindrical portion 212c is fitted in the left and right. A synthetic resin covering tube 202, a connecting portion 203a adhered and connected to at least the covering portion 202a of the covering tube 202, an outer covering portion 203b covering the covering portion c of the covered electric wire K, and heat adhered to the inner surface thereof. Meltable resin layer 2
A male insulating member A including a heat-shrinkable tube 203 having a heat-shrinkable tube 03c, a connecting portion 211b that is fitted to and electrically connected to the wire holding portion 211a and the connecting portion 201b, and a retaining portion 211c. An intermediate portion 212b formed with a small hole 212d that passes through the connection portion 211b and the locking portion 211c of the metal connection terminal 211 but does not pass through the wire holding portion 211a, and a cover portion 212a in which the holding portion 211a of the connection terminal 211 is fitted. And a synthetic resin covering tube 212 formed by connecting the left and right female extending tubular portions 212c to the male extended tubular portion 202c to the outside, and at least on the covering portion 202a of the covering tube 212 by adhesive bonding. A heat-shrinkable tube 213 having a continuous portion 213a, a jacket portion 213b for jacketing the sheath portion c of the sheathed wire K, and a hot-melt resin layer 203c adhered to the inner surface thereof. And the extended cylindrical portions 202c and 212c of the synthetic resin covering cylinders 202 and 212 insert and connect the connecting portions 201b and 211b of the terminals 201 and 211 to each other. The extended cylindrical portions 212c and 202c of the mating side are formed to have a length to be fitted to each other in the inclined posture.
A watertight ring 205 is attached to a portion corresponding to the fitting position of 02c and 212c.

However, in this case, since the insulated wire K is covered with the sheathing tubes 202 and 212 and further covered with the heat-shrinkable tube 203, the structure is complicated. In this case, the heat-shrinkable tube 203 has to be passed through the electric wire K to cover the portion where the electric wire K hits each time, which is troublesome and troublesome.

[0006]

SUMMARY OF THE INVENTION According to the present invention, with a simple structure and a simple operation, a wire such as a ribbon wire is formed on a sharp edge of a plate edge of an electric device such as a shield plate or a heat sink. A wire wire protection structure that can prevent direct contact and prevent damage to the wire, and can maintain its durability for a long time without deterioration or falling off due to heat generated from a plate-like body such as a heat sink. It is intended to provide.

[0007]

Means for Solving the Problems The present invention has been proposed to solve the above problems, and the invention according to claim 1 is a plate-like body for electric equipment such as a shield plate or a heat sink. The heat-shrinkable tube is inserted into a thin plate piece formed between the cut and the plate edge so as to cut into the vicinity of the plate edge where the wire wire such as the ribbon wire abuts. Then, heat is applied to the heat-shrinkable tube to cause the heat-shrinkable tube to shrink and adhere to the thin plate piece, and the shrinkable heat-shrinkable tube causes the wire wire to directly contact the plate edge of the electric device plate. This is characterized in that the configuration is such that the wire is protected by eliminating the above.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a wire wire protection structure according to an embodiment of the present invention. FIG. 1 is a perspective view showing a protection structure for a wire according to a first embodiment of the present invention. As shown in FIG. 1, the wire wire protection structure of the first embodiment has a deck 2 installed on an upper surface of a chassis 1, and a plate 3 made of a shield plate attached to an upper portion of the deck 2. A connector 4 is arranged on the front side in the drawing of the chassis 1, and a wire 5 composed of a ribbon wire is wired upward from the plate edge 31 of the plate 3 from the connector 4.

A notch 32 is formed in the plate-shaped body 3 at a position near the plate edge 31 so as to bite inward, and a thin plate piece formed between the cut 32 and the plate edge 31. The heat shrink tube 6 is inserted through 33. The heat-shrinkable tube 6 is shrunk by applying heat with a heat gun, a dryer or the like, and is fixed to the thin plate piece 33.
Since the wire 5 comes into contact with the heat-shrinkable tube 6 fixed to the thin plate piece 33, the wire 5 does not directly contact the sharp edge of the plate edge 31 of the plate 3. The wire 5 is protected by the heat-shrinkable tube 6 and is not damaged.

FIG. 2 is a perspective view showing a wire wire protection structure according to a second embodiment. In the wire wire protection structure of the second embodiment, as shown in FIG. 2, a plate-like body 3A made of a heat sink is vertically arranged on a substrate 7, and a connector 4 is arranged near the plate-like body 3A. A wire wire 5 composed of a ribbon wire is wired from the connector 4 obliquely upward from the plate edge 31A of the plate-like body 3A.

The plate edge 31A of the plate 3A
A cut 32A is formed so as to bite inward at a position near the cutout, and the heat-shrinkable tube 6 is inserted through a thin plate piece 33A formed between the cut 32A and the plate edge 31A. The heat-shrinkable tube 6 is shrunk by applying heat with a heat gun, a drier, or the like, and is fixed to the thin plate piece 33A.

Since the wire 5 comes into contact with the heat-shrinkable tube 6 fixed to the thin plate piece 33A, the wire 5 directly contacts the sharp edge of the plate edge 31A of the plate 3A. The wire 5 is protected by the heat-shrinkable tube 6 and is not damaged. still,
In each of the above embodiments, the ribbon wire is described as the wire wire 5, but it is needless to say that the present invention is not limited to this and can be applied to other types of wire wires.

[0013]

As described above, according to the first aspect of the present invention, a plate-like body for electric equipment such as a shield plate or a heat radiator plate is provided at a position near a plate edge where a wire line such as a ribbon wire abuts. A notch is formed so as to bite into the inside, a heat-shrinkable tube is inserted into a thin plate piece formed between the cut and the plate edge, and heat is applied to the heat-shrinkable tube to shrink the thin plate piece. The heat-shrinkable tube fixed to the part prevents the wire from directly abutting against the plate edge of the plate-shaped body for electric equipment and protects the wire, so that the following effects can be obtained. To play.

That is, with a simple structure and a simple operation, it is possible to prevent a wire line such as a ribbon line from directly hitting a sharp edge of a plate edge of an electric device plate such as a shield plate or a heat sink. To prevent damage to the wire,
The durability can be maintained for a long time without deterioration or falling off due to heat generated from a plate-like body such as a heat sink.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a wire wire protection structure according to a first embodiment of the present invention.

FIG. 2 is a perspective view illustrating a wire wire protection structure according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view showing an overall configuration of a terminal processing unit of a conventional rat-proof cable.

FIG. 4 shows a conventional watertight insulator for a wire connection terminal;
(A) and (b) are perspective views thereof, and (c) and (d) are central longitudinal sectional views thereof.

5A and 5B sequentially show a conventional watertight insulating connection method of an electric wire, in which FIG. 5A is a central longitudinal sectional view of a first connection step, and FIG.
FIG. 7 is a central vertical cross-sectional view showing a second connection step, and FIG. 7C is a central vertical cross-sectional view showing a state at the time of completion of connection in the third connection step.

[Explanation of symbols]

 3, 3A plate-shaped body (chassis 3A plate-shaped body (heat radiating plate) 31, 31A plate edge 32, 32A cut 33, 33A thin plate piece portion 5 wire wire (ribbon wire) 6 heat shrink tube

Claims (1)

[Claims] An incision is formed in a plate-like body for an electric device such as a shield plate or a heat radiator plate so as to bite inward at a location near a plate edge where a wire such as a ribbon wire abuts. A heat-shrinkable tube is inserted through the thin plate piece formed between the edge and the heat-shrinkable tube, and the heat-shrinkable tube is shrunk by applying heat to the thin-plate piece, and the heat-shrinkable tube is shrunk by the contracted heat-shrinkable tube. A structure for protecting a wire, wherein the wire is not directly in contact with a plate edge of the plate-like body for electric equipment, and the wire is protected.