JP2002374076A - Wire-holding structure for enclosure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce commodity which uses enclosure in size, by enhancing the holding function of a wire with only the enclosure. SOLUTION: The enclosure 1 has a member 11 and a member 12. The member 11 is formed in a box-like state having an opening 11a at one surface and has a recess 111 for inserting the wire in an opening edge 110. The member 11 has a trough 112, formed with a groove 112a corresponding to a sectional shape of the wire. The member 12 is formed into a shape for blocking the opening 11a of the member 11 and has an elastic protrusion 121 which is engaged within the recess 111. A groove 122a is formed, corresponding to the sectional shape of the wire at the distal end part 122. The wire inserted at its distal end 122 into the recess 111 by the protrusion 121 is retained in the trough 112.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire holding structure for an enclosure constituted by a first member and a second member.

[0002]

2. Description of the Related Art FIG. 4 is an explanatory view of a conventional electric wire holding structure of an enclosure. The enclosure 9 in this figure is formed in a box-like shape having a rectangular opening 91a on one surface and having a groove 910a for inserting an electric wire into an opening edge 910, and an opening 91a of the member 91. A member 92 formed in a box shape to be closed and having a groove 920a for inserting an electric wire into an opening edge portion
It is composed of Groove 91 of each member 91 (92)
0a (920a) is formed in a semi-cylindrical shape along the axis of the electric wire W to be inserted (see FIG. 5).

[0003] The two members 91 and 92 constitute an enclosure 9 by being fixed by, for example, an engaging portion provided therewith or a fixing means such as an adhesive, a screw or a rivet. It is sandwiched between the grooves 910a and 920a, and is held by both members 91 and 92 constituting the enclosure 9.

[0004]

In the above-described conventional electric wire holding structure, the force of holding the electric wire by the two members 91 and 92 is extremely weak. For this reason, conventionally, in order to enhance the holding function of the electric wire, for example, countermeasures such as knotting the electric wire, adding an insulation lock, or providing a structure for dispersing the tensile force in the enclosure are taken.

However, such countermeasures are disadvantageous in reducing the size of a product, and in some cases, increase the number of components and cause a cost increase.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an electric wire holding structure of an enclosure which can enhance the function of holding an electric wire only by the enclosure and enables downsizing of a product using the enclosure. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided an electric wire holding structure for an enclosure constituted by a first member and a second member.
The member is formed in a box shape having an opening on one surface, has a concave portion for inserting an electric wire at the edge of the opening, and the second member is formed in a shape to close the opening of the first member. An elastic protrusion that fits into the concave portion, and the convex portion presses an electric wire inserted into the concave portion at the tip of the convex portion into a valley of the concave portion.

According to a second aspect of the present invention, in the electric wire holding structure for the enclosure according to the first aspect, a groove corresponding to a cross-sectional shape of the electric wire is formed in each of a tip portion of the concave portion and a valley portion of the concave portion. It is characterized by having.

The invention described in claim 3 is the first or second invention.
In the wire holding structure of the enclosure according to the above, while having a certain angle between one end of the cross section of the concave portion and the inserted wire, a certain angle between one end of the cross section of the convex portion and the inserted wire. It is characterized by having an angle.

According to a fourth aspect of the present invention, in the electric wire holding structure for the enclosure according to any one of the first to third aspects, the first member and the second member are each formed in a hemispherical shape,
The surrounding body has a spherical shape.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIG. 1 is a perspective view showing an electric wire holding structure of an enclosure according to a first embodiment of the present invention. The first embodiment will be described with reference to FIG. The enclosure 1 according to the first embodiment includes a member 11 and a member 12 made of, for example, resin.

The member 11 has a rectangular opening 11a on one surface.
And has a concave portion 111 for inserting an electric wire (not shown) in the opening edge portion 110. A semi-cylindrical groove 112a corresponding to the cross-sectional shape of the electric wire, for example, a circle is formed in the valley 112 of the concave portion 111.

The member 12 is formed in a shape for closing the opening 11a of the member 11, in the example of FIG. 1, a box shape having a rectangular opening on one surface. Of the projection 121. A semi-cylindrical groove 122a corresponding to the cross-sectional shape of the electric wire is formed in the tip portion 122 of the convex portion 121.

Here, the enclosure 1 accommodates, for example, a substrate on which electronic components and the like are mounted, depending on the product in which the enclosure is used, and one end of an electric wire (for example, including a plurality of conductor wires) is attached to the substrate. The other end of the electric wire is drawn out from the inside of the enclosure 1 through the concave portion 111 and the convex portion 121 to the outside.

According to the enclosure 1 having such a structure, the convex portion 121 has elasticity.
Since the electric wire inserted into the concave portion 111 is pressed into the valley 112 by the step 2, the function of holding the electric wire can be enhanced only by the enclosure 1, and the size and cost of the product using the enclosure 1 can be reduced. become.

(Second Embodiment) FIG. 2 shows a second embodiment according to the present invention.
It is a figure showing the electric wire holding structure of the enclosure of an embodiment, and a 2nd embodiment is described using this figure.

The surrounding body in the second embodiment has a fixed angle between one end of the cross section of the concave portion and the inserted wire W, and has an angle between one end of the cross section of the convex portion and the inserted wire W. Except for having a certain angle, the configuration is the same as that of the first embodiment.

That is, as shown in FIG.
The valley portion 112 of the first concave portion has edges that are inclined at a fixed angle (θ in the drawing) with respect to the axis of the electric wire W, and an edge portion between these minimum dimensions hits (the covering of) the electric wire W ( 2 (b), and has an edge inclined at a certain angle with respect to the axis of the electric wire W at the tip end portion 122 of the convex portion 121 of the member 12, as shown in FIG. The portion of the edge between these minimum dimensions forms a groove 222a that hits (or digs into) (covers) the electric wire W.

As described above, the wire W has an edge inclined at a fixed angle with respect to the axis of the wire W, and the edge portion between the minimum dimensions is the wire W
Grooves 212a, 2 that hit (or cut into) (cover)
By forming 22a, the function of holding the electric wire W can be enhanced.

(Third Embodiment) FIG. 3 shows a third embodiment according to the present invention.
It is a figure which shows the electric wire holding structure of the enclosure of embodiment, If 3rd Embodiment is described using this figure, the enclosure 3 in 3rd Embodiment will be a member 31 made of resin etc., for example.
And the member 32.

The member 31 is formed in a bowl shape (hemispherical box shape) having a circular opening 31a on one surface, and has an opening edge 31.
0 has a recess 311 for inserting an electric wire (not shown). A semi-cylindrical groove 312a corresponding to the cross-sectional shape of the electric wire, for example, a circle, is formed in the valley 312 of the concave portion 311.

The member 32 is formed in a shape that closes the opening 31a of the member 31. In the example of FIG. 3, the member 32 is formed in a bowl shape having a circular opening on one surface. Has a convex portion 321. A semi-cylindrical groove 3 corresponding to the cross-sectional shape of the electric wire is
22a are formed.

According to the enclosure 3 having such a structure, since the projection 321 has elasticity, the projection 321 is
Since the electric wire inserted into the concave portion 311 is pressed into the valley portion 312 in Step 2, the function of holding the electric wire can be enhanced only by the surrounding body 3, and the size and cost of the product using the surrounding body 3 can be reduced. become. In addition, the elastic force of the convex portion 321 can be increased, and the cross-sectional shape of the convex portion 321 has a fan-shaped R, so that an effect of increasing the strength of the convex portion 321 can be obtained.

[0024]

As is apparent from the above description, the invention according to claim 1 is an electric wire holding structure of an enclosure constituted by a first member and a second member, wherein the first member is
A box having an opening on one surface, a recess for inserting an electric wire at an edge of the opening, the second member being formed in a shape to close an opening of the first member, The convex portion has an elastic convex portion, and the convex portion presses the electric wire inserted into the concave portion at the tip of the convex portion into the valley portion of the concave portion, so that the function of holding the electric wire can be enhanced only by the surrounding body. In addition, it is possible to reduce the size of a product using the enclosure.

According to a second aspect of the present invention, in the electric wire holding structure of the enclosure according to the first aspect, grooves corresponding to the cross-sectional shape of the electric wire are respectively formed in a tip portion of the concave portion and a valley portion of the concave portion. Therefore, the electric wire can be held down more suitably.

The third aspect of the present invention is the first or second aspect.
In the wire holding structure of the enclosure according to the above, while having a certain angle between one end of the cross section of the concave portion and the inserted wire, a certain angle between one end of the cross section of the convex portion and the inserted wire. Since it has an angle, the function of holding the electric wire W can be enhanced.

According to a fourth aspect of the present invention, in the electric wire holding structure for the enclosure according to any one of the first to third aspects, the first member and the second member are each formed in a hemispherical shape,
Since the surrounding body has a spherical shape, the function of holding the electric wire can be enhanced only by the surrounding body, and the size of the product using the surrounding body can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electric wire holding structure of an enclosure according to a first embodiment of the present invention.

FIG. 2 is a view showing an electric wire holding structure of an enclosure according to a second embodiment of the present invention.

FIG. 3 is a view showing an electric wire holding structure of an enclosure according to a third embodiment of the present invention.

FIG. 4 is an explanatory view of a conventional electric wire holding structure of an enclosure.

FIG. 5 is an explanatory diagram of each groove in FIG. 4;

[Explanation of symbols]

 1,3 enclosure 11,31 member 110,310 opening edge 111,311 recess 112,312 valley 112a, 212a, 312a groove 12,32 member 121,321 projection 122,222a, 322 tip part 122a, 322 groove

Claims (4)

[Claims] 1. An electric wire holding structure for an enclosure constituted by a first member and a second member, wherein the first member is formed in a box shape having an opening on one surface, and is provided at an edge of the opening. A concave portion for inserting an electric wire, the second member is formed in a shape to close an opening of the first member, and has an elastic convex portion that fits into the concave portion; An electric wire holding structure for an enclosure, wherein an electric wire inserted into the concave portion at its tip is pressed into a valley of the concave portion. 2. The electric wire holding structure for an enclosure according to claim 1, wherein a groove corresponding to a cross-sectional shape of the electric wire is formed in each of a tip portion of the concave portion and a valley portion of the concave portion. 3. An angle between the one end of the cross section of the concave portion and the inserted electric wire, and a certain angle between the one end of the cross section of the convex portion and the inserted electric wire. The electric wire holding structure for an enclosure according to claim 1 or 2, wherein: 4. The enclosure according to claim 1, wherein the first member and the second member are each formed in a hemispherical shape, and the enclosure has a spherical shape. Wire holding structure.