JP2720939B2 - Electrical parts storage case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof electric component storage case.

[0002]

2. Description of the Related Art For example, in a lighting fixture for outdoor installation, in order to protect electric components such as a lighting device from rainwater or the like, the electric components such as the lighting device are stored in a storage case employing a waterproof structure. To be attached to the instrument body.

FIGS. 6 and 7 show a conventional storage case, in which a cylindrical case main body 1, a pair of cap bodies 2 attached to both ends of the case main body 1, and the case main body 1 are attached to the appliance main body. And a mounting plate 3 for mounting.

[0004] Then, the electric components are accommodated in the case main body 1, an adhesive is applied to both ends of the case main body 1, the cap body 2 is fitted thereto, and after the adhesive is cured, the case main body 1 and the key are connected. A silicone sealant is applied between the case body 2 and both ends of the case body 1 are sealed.

Further, the mounting plate 3 is fixed to the case main body 1 by screwing a plurality of mounting screws 5 fitted with the ring-shaped washers 4 to the lower surface of the case main body 1 through the mounting plate 3.

[0006]

However, in the structure of the conventional storage case, a drying step for drying the adhesive and the silicone sealing agent used for fixing and sealing the case body 1 and the cap body 2 respectively is performed. Requires a long time to assemble the case.

[0007] In addition, there is a problem in reliability of waterproof performance due to poor application of a silicon sealant or occurrence of pinholes.
In addition, water may enter the case body 1 through the screw groove of the mounting screw 5, and there is a problem in reliability of waterproof performance.

The case body is formed into a cylindrical shape by extrusion molding.
If formed, attach the end plate to the case body
Circular holes for screwing mounting screws are formed by extrusion.
It is difficult to achieve such a case body and end plate
Is not screwed, and fixing means such as adhesive is used.
Have been.

[0009] The present invention has such has been made in view of the respect, the case body which is formed into a cylindrical shape by extrusion molding
It adopts a structure that allows the screwing of the end plate, as well as possible in a relatively short time case assembly, high comb reliability of the waterproof performance, further, to screwed possible case body
Solving extrusion molding issues when adopting the structure
The purpose is to provide an electronic component storage case
You.

[0010]

SUMMARY OF THE INVENTION The present invention includes a case main body screw threadedly plurality of grooves from its cylinder longitudinal as well as formed in a tubular shape formed by press denars shaped, for accommodating the electric component inside And a pair of end plates that are respectively fastened and fixed to both end surfaces of the case body in a closed state by mounting screws screwed into the grooves, and are interposed between both end portions of the case body and each end plate. And a groove,
Formed along the cylinder longitudinal direction on the cylinder side wall of the case body
Cylindrical part and a part of the peripheral wall of the cylindrical part along the longitudinal direction of the cylinder.
And a communication part formed to communicate the inside and outside of the cylindrical part.
Is what you are doing .

[0011]

According to the present invention, an electric component is housed in a case body, end plates are fitted to both ends of the case body via packing, and mounting screws are screwed into grooves of the case body through the end plates. As a result, the end plates are tightened and fixed to both end surfaces of the case body. Due to the fastening of the end plate, the packing is elastically deformed and is brought into close contact with the end face of the case body and the end plate, thereby sealing both ends of the case body. In addition, the groove
Is formed along the cylinder longitudinal direction on the cylinder side wall of the case body.
A cylindrical portion, and a part of the peripheral wall of the cylindrical portion includes the inside of the cylindrical portion.
The communication part to communicate outside is formed along the longitudinal direction of the cylinder.
When the extrusion mold has a simple and durable structure
In both cases, the chips that appear when the mounting screws are screwed into the grooves
Screwing can be securely performed without clogging the groove.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of an embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 11 denotes a case main body for accommodating electric parts. The case main body 11 is formed in a cylindrical shape having a rectangular cross section by extrusion molding of a metal material such as aluminum or a synthetic resin material. At the same time, grooves 12 are formed at the four corners along the cylinder longitudinal direction. Each groove
Reference numeral 12 includes a cylindrical portion 14 formed in an arc-shaped hole edge portion 13 protruding inside the cylinder, and a communication portion 15 communicating with the cylindrical portion 14 and the outer surface of the cylinder. Since the formation of the communicating portion 15, together with the good moldability of the extrusion molding, it is possible to the type of press denars shaped and <br/> simple and durable good structure.

Reference numeral 21 denotes a pair of end plates attached to both ends of the case main body 11. The end plates 21 are made of, for example, metal or synthetic resin. It is formed in a substantially cap shape from a flange portion 23 protruding from the peripheral edge of the plate portion 22 and fitted to an end peripheral surface of the case main body 11. At four corners of the end plate portion 22, mounting holes 24 are formed coaxially with the cylindrical portions 14 of the respective groove portions 12. Then, the mounting screw 25 is screwed into the cylindrical portion 14 of the groove 12 of the case main body 11 from the outer surface side of the end plate portion 22 through each of the mounting holes 24, so that the end plate is
21 can be fastened and fixed to the end face of the case body 11 in a closed state.

On one side of the flange portion 23 of the end plate 21, a mounting piece 26 as a mounting portion for mounting to the mounted portion is provided in a protruding manner, and a mounting hole 27 is formed in the mounting piece 26.

Reference numeral 31 denotes a packing interposed between both ends of the case body 11 and the respective end plates 21. The packing 31 is made of, for example, rubber and has a rectangular frame shape substantially the same as the end shape of the case body 11. In each of the four corners, an inwardly protruding edge 32 corresponding to the shape of the hole edge 13 is formed, and the edge 32 has a through hole coaxial with the cylindrical portion 14 of each groove 12. 33 are formed.

Next, the operation of this embodiment will be described.

First, assembling of the storage case is performed by the case body.
11 accommodates electric components, and a flange portion 23 of a pair of end plates 21.
The packing 31 is fitted inside the
Each end plate 21 is fitted to both ends of the. This allows
The packing 31 is interposed between the end surface of the case body 11 and the end plate portion 22 of the end plate 21, and the flange portion 23 of the end plate 21 is fitted to the peripheral surface of the end portion of the case body 11.

Then, the mounting screw 25 is inserted into each mounting hole 24 of the end plate 21.
And screwed into the cylindrical portion 14 of the groove 12 of the case body 11 through the through hole 33 of the packing 31, and end plates are attached to both end surfaces of the case body 11.
Tighten and fix 21. At this time, since the communication portion 15 communicating with the outer surface of the cylinder of the groove portion 12 is provided, the aluminum piece or the like that comes out when the mounting screw 25 is screwed into the groove portion 12 can be screwed into the groove portion 12 without being clogged.

When the end plate 21 is tightened and fixed, the packing 31 is elastically deformed and is brought into close contact with the end face of the case body 11 and the end plate 21, so that both ends of the case body 11 can be sealed.

[0021] As described above, using a case body 11 having a groove 12 which is pressed denars form, by fastening the end plate 21 via a packing 31 at both ends of the case body 11, a conventional waterproof Compared to a storage case using a structure, case assembly can be performed in a relatively short time, and production efficiency can be improved.

Further, since the edge of the through hole 33 of the packing 31 is deformed by the tightening force and is pressed along the shape of the thread groove of the mounting screw 25, water enters the case body 11 through the thread groove. In addition, since the mounting screw 25 is screwed into the groove portion 12 that does not communicate with the inside of the case body 11, water can be reliably prevented from entering the case body 11, and the waterproof performance Reliability can be improved.

Further, the groove 12 is formed on the cylindrical side wall of the case body 11.
Has a cylindrical portion 14 formed along the longitudinal direction of the tube,
A connection for communicating the inside and outside of the cylindrical portion 14 with a part of the peripheral wall of the cylindrical portion 14.
Since the through portion 15 is formed along the longitudinal direction of the cylinder,
Good moldability and simple and durable extrusion mold
A good structure can be achieved, and the mounting screw 25 is screwed into the groove 12.
Screws that are sometimes caught in the groove 12 without clogging
Can be surely done.

FIG. 4 shows an example in which the storage case is applied to a lighting fixture for outdoor installation. A storage case containing electric parts such as lighting parts is fitted inside the appliance main body 41, screws 42 are inserted from the upper surface of the appliance into the mounting holes 27 of the respective mounting pieces 26, and nuts 43 are screwed onto the screws 42. By doing so, the storage case can be attached to the appliance main body 41.

The attachment of the storage case to the instrument body 41 may be performed by using a screw 42 or the like, or by attaching the storage case to the instrument body 41 using a tightening band or the like.

Further, FIG. 5 shows another embodiment, in this embodiment, the groove 12 of the cross-sectional shape of the case body 11 to be pressed denars shape, closes the cylindrical outer surface, the cylindrical inner hole edge portion 13 A communication portion 15 is formed at the bottom. Although the groove 12 into which the mounting screw 25 is screwed is open to the inside of the case body 11, the packing 31
The edge of the through hole 33 is deformed by the tightening force and pressed along the shape of the thread groove of the mounting screw 25, so that water can be prevented from entering the case body 11 through the thread groove.

The cross-sectional shape of the groove 12 is not limited to the above embodiments, but may be any shape as long as the mounting screw 25 can be screwed.

[0028]

According to the present invention, using a case body having a groove which is pressed denars form, together with fitting the end plates through the packing at both ends of the case body, the mounting screw through the end plate Is screwed into the groove of the case main body, and the end plate is fastened and fixed to the end of the case main body, so that both ends of the case main body can be securely sealed. for that reason,
Compared to a conventional storage case using a waterproof structure, the case assembly can be performed in a relatively short time, and the reliability of the waterproof performance can be enhanced. In addition, the groove
A cylinder formed on the side wall of the base body along the length of the cylinder
The inside and outside of the cylindrical part are connected to a part of the peripheral wall of the cylindrical part.
Since the communicating part to be passed is formed along the length of the cylinder,
The moldability of extrusion molding is good and the mold of extrusion molding is simple and
A durable structure can be created, and the mounting screw is screwed into the groove
Screws that are not caught in the groove
You can wear it securely.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an electric component storage case of the present invention.

FIG. 2 is a perspective view of the assembled state.

FIG. 3 is an end view of a part of a case main body.

FIG. 4 is a perspective view of a lighting device to which a storage case is applied.

FIG. 5 is a partial end view of a case main body showing another embodiment of the present invention.

FIG. 6 is an exploded perspective view of a conventional electric component storage case.

FIG. 7 is a perspective view of the assembled state.

[Explanation of symbols]

11 Case body 12 Groove 14 Cylindrical part 15 Communication part 21 End plate 25 Mounting screw 31 Packing

Claims (1)

(57) [Claims] 1. A forming a plurality of grooves capable screws screwed from the cylinder longitudinal direction and forming into a tubular shape by pressing denars form, a case main body for housing the electrical components therein, screwed into said groove A pair of end plates which are respectively fastened and fixed to both end surfaces of the case main body in a closed state by mounting screws, and a packing interposed between both end portions of the case main body and each end plate, and the groove portion is provided . Along the cylinder longitudinal direction along the cylinder side wall of the case body.
And a cylindrical part formed on the peripheral wall of this cylindrical part.
Formed along the longitudinal direction to communicate inside and outside of the cylindrical part
An electrical component storage case having a communication part .