JPH0538962U - Waterproof case for electrical parts - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a waterproof case for electric parts which can prevent vibration of electric parts and can be repaired. [Structure] A cylindrical case body 1 having an opening 4 at both ends for accommodating an electric component 5 therein, a waterproof packing 2 that is detachably and hermetically attached to the opening 4 and also serves as a vibration isolation, and a waterproof packing 2 And an end cover 3 which is attached and has an external attachment portion 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterproof case for electric parts that accommodates electric parts such as an electronic starter of a lighting fixture.

[0002]

[Prior Art]

 A conventional example is shown in FIG. That is, this waterproof case for electric parts has a cylindrical case body 31 having openings 30 at both ends for accommodating electric parts therein, and an end in which a rubber waterproof packing pressed into the opening 30 is sprayed. A cover (not shown) and a sealing material 32 for sealing the outside of the end cover of the opening 30 are provided. Reference numeral 33 is a mounting hole.

[0003]

[Problems to be solved by the device]

 However, in this waterproof case for electric parts, since the case body 31 is screwed directly to the member to be attached through the mounting hole 33, when the member to be attached is vibrating such as a bridge, the vibration is directly applied to the case body 31. Since it is transmitted, there is a drawback that a separate seismic structure is required to protect the electric parts.

Further, since both ends are sealed with the sealing material 32, there is a drawback that the electrical components housed inside cannot be inspected or repaired. Therefore, an object of the present invention is to provide a waterproof case for electric parts which can prevent vibration of the electric parts and can be repaired.

[0005]

[Means for Solving the Problems]

 The waterproof case for electric parts of the present invention has a cylindrical case body having openings at both ends for storing electric parts therein, and a waterproof and waterproof packing for removably sealingly attached to the openings. The end cover is attached to the waterproof packing and has an external mounting portion.

[0006]

[Action]

 According to the configuration of the present invention, the inside of the case body can be waterproofed because the opening is sealed with the waterproof packing, and the inside of the case body can be repaired because the waterproof packing is removable. Furthermore, since the waterproof packing also serves as a vibration proof and the case body is attached to the mounted part by the external mounting part of the end cover, even if the mounted part vibrates, the waterproof packing absorbs the vibration, so vibration is not It can be prevented from being transmitted to the parts.

[0007]

【Example】

 An embodiment of this invention will be described with reference to FIGS. That is, this waterproof case for electric parts has a case body 1, a waterproof packing 2, and an end cover 3. The case body 1 has a tubular shape, has openings 4 at both ends, and houses an electric component 5 therein. The case body 1 of the embodiment is an extruded material of aluminum. The electric component 5 is an electronic block in which the circuit components of the electronic starter are mounted on a printed circuit board.

The waterproof packing 2 also serves as a vibration proof, and is detachably and hermetically attached to the opening 4. The waterproof packing 2 of the embodiment is made of EPT rubber, and as shown in FIG. 3, a press-fitting portion 9 having a lateral dimension a ′> a and a vertical dimension b ′> b larger than the lateral dimension a and the vertical dimension b of the opening 4 is provided. Have. A screw hole 7 and a nut hole 8 are formed for connecting the end cover 3.

The end cover 3 is attached to the waterproof packing 2 and has an external attachment portion 6. The end cover 3 of the practical example is bent into an L shape, and a connecting hole 10 that is aligned with the screw hole 7 is formed in a piece parallel to the opening 4 on the end face of the case body 1, and a piece perpendicular to the connecting hole 10 is formed. An external mounting portion 6 having a hole as an example is formed. In assembling, the screw 11 is passed through the connecting hole 10 and the screw hole 7, the nut 12 is passed through the nut hole 9, and the screw 11 and the nut 12 are tightened to connect the end cover 3 and the waterproof packing 2, The waterproof packing 2 is press-fitted into the case body 1, and bolts (not shown) or the like are passed through the outer mounting portion 6 to be mounted on the mounted portion (not shown).

According to this embodiment, since the opening 4 is sealed with the waterproof packing 2, the inside of the case body 1 can be waterproofed, and the waterproof packing 2 can be detached, so that the inside of the case body 1 can be repaired. It will be possible. Further, since the waterproof packing 2 also serves as a vibration proof and the case body 1 is attached to the attached portion by the external attachment portion 6 of the end cover 3, even if the attached portion vibrates, it is absorbed by the waterproof packing 2 and thus vibrates. Can be prevented from being transmitted to the case body 1 and the electric component 5.

In order to improve workability, the side surface of the press-fitting portion 9 of the waterproof packing 2 may be tapered. The end cover 3 does not have to be L-shaped.

[0012]

[Effect of the device]

 According to the waterproof case for electric parts of the present invention, the inside of the case body can be waterproofed because the opening is sealed with the waterproof packing, and the inside of the case body can be repaired because the waterproof packing is removable. Furthermore, since the waterproof packing also serves as a vibration proof and the case body is attached to the mounted part by the external mounting part of the end cover, even if the mounted part vibrates, the waterproof packing absorbs the vibration, so the vibration of the case body Therefore, there is an effect that it can be prevented from being transmitted to the electric parts.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of an embodiment of the present invention.

FIG. 2 is an external perspective view.

FIG. 3 is a partially exploded perspective view.

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

[Explanation of symbols]

 1 Case body 2 Waterproof packing 3 End cover 4 Opening 5 Electrical component 6 External mounting part

Claims (1)

[Scope of utility model registration request] 1. A tubular case body having openings at both ends for accommodating electrical parts therein, a waterproof packing that is detachably and hermetically attached to the opening, and also serves as a vibration isolator, and is attached to the waterproof packing. A waterproof case for electric parts, comprising an end cover having an external mounting portion.