JPH0567103U - Dustproof and waterproof structure of the box for storing electrical equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to allow a packing as a dustproof and waterproof member to be detachably attached to a draining portion of a box for housing electrical equipment without using an adhesive. [Structure] The packing 6 formed in a circular loop shape has an inner peripheral dimension shorter than the outer peripheral dimension of the water draining portion 2B of the main body 2, and a groove cut into the inner peripheral surface has a tip of the water draining portion 2B. When the packing 6 is fitted all around, the packing 6 is fixed to the draining part 2B by the elastic force of the packing 6 itself. When the door 3 is closed in this state, the packing 6 and the back surface of the door 3 come into close contact with each other, and dust or water droplets from the outside are prevented from entering.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dustproof and waterproof structure of a box for housing electrical equipment for preventing dust, water droplets, or the like from entering the inside of the main body.

[0002]

[Prior Art]

 Conventionally, electrical equipment storage boxes such as control panels that store various electrical equipment are equipped with a dustproof / waterproof member on the main body or door to prevent dust, water droplets, etc. from entering the interior. ing. The electric equipment housing box 21 shown in a perspective view in FIG. 6 includes a main body 22 and a door 23 that opens and closes the opening 22A of the main body 22, and the door 23 is opened and closed via hinges 24 and 25. Is configured to be. As shown in FIG. 7 or FIG. 8, the packing 26 or the packing 27 is made of an adhesive (including double-sided tape) on the back surface of the door 23 of the electric device housing box 21 or on the draining portion 22B of the main body 22. Can be pasted. The packing 26 attached to the back surface of the door 23 has an AA cross-sectional shape, for example, a rectangle as shown in FIG. 9 or a semi-elliptical shape having a hollow portion as shown in FIG. The packing 27 attached to the packing 27 has a BB cross-sectional shape, for example, a rectangle as shown in FIG. 11 or a U-shape as shown in FIG. When the packing 27 having a U-shaped cross section as shown in FIG. 12 is attached to the draining portion 22B of the main body 22, the groove portion is fitted into the draining portion 22B. It is fitted after applying adhesive to either one or both. Further, when the packings 26 and 27 are formed into a quadrangle as shown in FIGS. 7 and 8, they are cut according to the dimensions of the door 23 or the drainer 22B of the main body 22 as shown in FIG. A method of laminating or a method of integrally molding as shown in FIG. 14 is adopted.

[0003]

The conventional dustproof and waterproof structure of the electrical equipment housing box 21 is used for fixing the packing by using an adhesive, so that when the coating color of the electrical equipment housing box 21 is changed, etc. It takes time and effort to remove the packings 26 and 27, and the packings 26 and 27 that have been removed cannot be reused because they have adhesive or have flaws. Further, even when the packings 26 and 27 deteriorate with age and need to be replaced, the same problem as described above occurs.

Therefore, in the present invention, it is an object of the present invention to solve the above-mentioned conventional problems by making it possible to attach the packing to the draining portion of the main body without using an adhesive and to easily remove the packing. It is a specific subject.

[0005]

[Means for Solving the Problems]

 The technical means for solving the above-mentioned problem is to attach dust to the outside by being attached to a draining part formed in the main body opening of an electrical equipment housing box having a main body and a door that opens and closes the opening of the main body. , Or in a dustproof and waterproof structure of an electrical equipment storage box that is equipped with a dustproof and waterproof member that prevents the entry of water droplets, etc., the dustproof and waterproof member has an inner circumference smaller than the outer peripheral dimension of the draining part, and its inner circumference The surface is a loop-shaped packing having a groove formed to be fitted into the draining portion and having elasticity.

[0006]

[Action]

 According to the dustproof / waterproof structure of the electrical equipment housing box configured as described above, the inner circumferential dimension of the loop-shaped packing is smaller than the outer circumferential dimension of the draining part formed in the opening of the main body, and therefore the groove of the packing is formed. When is fitted into the drainage part, it is fixed to the drainage part by the elastic force of the packing. It can also be removed because no adhesive is used.

[0007]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective external view of a box 1 for housing electrical equipment, in which a door 3 is attached to a main body 2 so as to be openable and closable via hinges 4 and 5. A drainer 2B is formed in a bent shape around the opening 2A of the main body 2. FIG. 2 is a perspective view of the packing 6 detachably attached to the water draining section 2B of the main body 2. The packing 6 is formed of a synthetic rubber having elasticity into a circular loop shape. The circular packing 6 is formed to have an inner peripheral dimension shorter than the outer peripheral dimension of the water draining portion 2B of the main body 2, and a groove 6A is cut on the inner peripheral surface thereof. The inner peripheral dimension of the bottom portion of the groove 6A is also slightly smaller than the outer peripheral dimension of the draining portion 2B of the main body 2. As shown in FIG. 3, when the entire periphery of the groove 6A is fitted into the tip portion of the draining portion 2B, The packing 6 is fixed to the draining portion 2B by the elastic force of the circular packing 6 itself. Then, when the door 3 is closed, the packing 6 and the back surface of the door 3 are in close contact with each other, and dust or water droplets from the outside are prevented from entering.

The circular packing 6 may be formed into a circular loop shape as described above from the beginning, but the circular packing 6 is not formed into a circular loop shape from the beginning, but is a linear shape having the same cross-sectional shape. It is also possible to make the packing, and cut the linear packing in accordance with the outer peripheral dimension of the draining portion 2B of the main body 2, and process it into a circular shape by heat processing or the like. However, if heat-processed, the groove 6A of the heat-connecting portion may be deformed during heat-processing. Therefore, as shown in FIG. 4, the notch 7 is formed in the draining portion 2B corresponding to the heat-connecting portion. Form. Further, in order to improve the adhesion of the circular packing 6 to the respective corner portions of the water draining portion 2B, each corner portion 8 of the water draining portion 2B may be cut as shown in FIG. The packing 6 has been described as an example of a circular loop shape, but the packing is not limited to the circular loop shape, and a quadrangular loop packing may be used.

[0009]

[Effect of the device]

 As described above, according to the present invention, there is an elastic loop-shaped body having an inner circumference smaller than the outer circumference of the main body draining part of the electrical equipment housing box, and having grooves formed in the inner circumference. Since the packing is configured to be detachably fitted to the draining part of the main body, the packing can be easily removed when changing the coating color of the electrical equipment storage box, and the packing can be removed again after painting. Can be used as a dustproof and waterproof member. In addition, replacement becomes easy when it deteriorates with age. Furthermore, the dustproof / waterproof structure according to the present invention can be directly applied to a control panel or the like which is generally used at present.

[Brief description of drawings]

FIG. 1 is a perspective external view of a box for housing an electric device according to the present invention.

FIG. 2 is a perspective view of a packing.

FIG. 3 is a cross-sectional view schematically showing a dustproof and waterproof structure of a box for housing an electric device.

FIG. 4 is a processing explanatory view of an embodiment of the present invention.

FIG. 5 is a processing explanatory view of an embodiment of the present invention.

FIG. 6 is a perspective external view of a conventional electrical equipment housing box.

FIG. 7 is a perspective view schematically showing an example of a conventional dustproof and waterproof structure for a box for housing electrical equipment.

FIG. 8 is a perspective view schematically showing another example of the conventional dustproof / waterproof structure for a box for housing electrical equipment.

FIG. 9 is a cross-sectional view of a conventional packing.

FIG. 10 is a cross-sectional view of a conventional packing.

FIG. 11 is a cross-sectional view of a conventional packing.

FIG. 12 is a cross-sectional view of a conventional packing.

FIG. 13 is a diagram illustrating the use of a conventional packing.

FIG. 14 is a diagram illustrating the use of another conventional packing.

[Explanation of symbols]

 1 Box for storing electrical equipment 2 Main body 2A Opening 2B Drainer 3 Door 6 Packing 6A Groove

Claims (1)

[Scope of utility model registration request] 1. An ingress of dust, water droplets, or the like attached to a drainer formed in an opening of a main body of a box for storing electrical equipment, which includes a main body and a door that opens and closes the opening of the main body. A dustproof and waterproof structure of an electrical equipment housing box provided with a dustproof and waterproof member for preventing the dustproof and waterproof member having an inner circumference smaller than the outer peripheral dimension of the draining part, and the draining part on the inner peripheral surface thereof. A dust-proof and waterproof structure for a box for storing electrical equipment, characterized in that it is a loop-shaped packing having elasticity in which a groove to be fitted into the portion is formed.