JPH04259286A - Outdoor cabinet - Google Patents

Abstract

PURPOSE:To provide an easy-to-make preventive type outdoor cabinet comprising a cabinet body having aperture and a cover for freely, opening and closing the aperture, accommodating electronic parts and having sufficient reliable and stable water proof property and sufficient shielding effect. CONSTITUTION:An aperture has a bending edge 4 which is bent like a Z-shape section, edge member 5 is fixed around the circumference with predetermined interval along the external circumference of the bending edge 4, a rink type gasket 6 is loaded to an external circumferential groove formed by the side surface 51 of the edge member 5 and the side surface 41 of the bending edge 4, a belt ring type conductive gasket 7 which ensures conductive condition between both end faces in the same direction when a pressing force is applied in the one direction is fixed at the front edge surface 52 surrounding the edge member 5, and a threading or other engaging and fixing means is provided to the bending edge 4 or edge member 5 to freely open or close the cover 3.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof outdoor casing for accommodating an electronic device, which comprises a casing body having an opening and a cover 3 that allows the opening to be opened and closed.

Recent electronic devices have become smaller, have higher performance, higher reliability, and lower power consumption due to the remarkable development of components including semiconductor components. For example, in the field of wireless equipment, the miniaturization of equipment has been promoted along with the development of higher frequency ranges, and for equipment with frequencies of 10 GHz or higher, the transmitter/receiver is directly connected behind a parabolic antenna, and is installed outdoors as one unit, making it easier to transport and move. The size has become smaller and smaller.

[0003] The housing of such an electronic device installed outdoors is required to have sufficient waterproofness and weather resistance, as well as good heat dissipation and electromagnetic shielding properties.

0004

[Prior Art] Figure 2 shows an example of a conventional outdoor enclosure.
(a) is a perspective view of the housing, (b) is a side sectional view before the cover is attached, and (c) is a side sectional view after the cover is attached.

An example of a conventional outdoor housing is shown in FIG. 2(a), which is a waterproof housing 15 that houses an electronic device inside.
This is a rectangular parallelepiped steel plate housing with a handle (not shown) on the side so that the entire housing can be lifted and transported, and the bottom is equipped with rubber feet for cushioning material. However, since it is installed inside a tent even outdoors, there is no sunshade cover. The housing 15 is composed of a metal rectangular parallelepiped housing main body 25 whose front and back surfaces are open, and a cover 3 whose opening can be opened and closed.

As shown in FIG. 2(b), the opening of the housing body 25 has a bent edge 4 bent into a Z-shaped cross section, and a waterproof gasket 6 is circumscribed on the side surface 41 of the bent edge 4. Bush 8 with blind screw holes drilled in several places around its outer circumference.
are fixed watertight.

[0007] The cover 3 has neck screws 36 attached at predetermined intervals to the edge thereof to prevent them from coming off. The cover 3 is fixed by placing it over the opening of the housing body 25 and screwing the necked screw 36 into the bush 8, as shown in FIG. 2(c).
The cover 3 is screwed in, and the cover 3 is fixed in a state where its inner surface abuts against the edge of the bent edge 4.

[0008] At this time, the waterproof gasket 6 is pressed to a predetermined position by the cover 3, and maintains the interior in a watertight state at the close contact portion. Furthermore, the inner surface of the cover 3 comes into contact with the edge of the bent edge 4 of the housing body 25, creating a conductive state and electromagnetically shielding the opening.

[0009]

[Problem to be solved by the invention] However, ■
When the waterproof gasket 6 is pressed by the cover 3,
On one side, the sides of the bent edge 4 form a close wall;
Since there is no close wall on the other side, uneven deformation with lateral displacement as shown by the dotted line in the figure occurs, resulting in a weakened waterproofing effect and poor reliability. ■ Also, since the bushing 8 has a waterproof structure, a blind hole is drilled and tapped, and this is spot welded to a predetermined position on the bent edge 4, and then a cream-like sealant is applied. However, since it is inside the bent edge 4, the workability of coating is very poor. ■Furthermore, the housing body 2 and the cover 3 are easily electrically connected at the abutting part of the bent edge 4, but the plate thickness becomes the contact surface and the contact area is small, and the intermittent connection by the necked screw 36 Due to sticking, the electromagnetic shielding effect varies,
It is unstable. There were problems such as.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to provide a housing that has reliable and stable waterproofing and shielding effects and is easy to manufacture.

[0011]

[Means for Solving the Problems] As shown in FIG. 1, the above object is to provide a waterproof outdoor casing for accommodating an electronic device, which consists of a casing body 2 having an opening and a cover 3 that can open and close the opening. 1, the opening has a bent edge 4 bent to have a Z-shaped cross section, an edge member 5 is fixedly fixed around the outer circumference of the bent edge 4 at a predetermined interval, and a ring-shaped waterproof gasket 6 is attached to the opening.
is attached to the outward circumferential groove formed by the side surface 51 of the edge member 5 and the side surface 41 of the bent edge 4, and when pressure is applied in one direction, the two end surfaces in the same direction become electrically conductive. A conductive packing 7 is fixed to the circumferential front edge surface 52 of the edge member 5, and the cover 3 is removably attached to the folded edge 4 or the edge member 5 by screws or other engagement fixing means. This is achieved by the housing.

0012

[Function] In other words, since the waterproof gasket 6 is installed in the groove, even if it is pressed to a certain level, it will only be compressed and deformed within the groove, and it will firmly and stably adhere to the pressed surface and exhibit the desired waterproof effect. can do.

Furthermore, since the width of the conductive gasket 7 becomes the pressing surface, the contact area is sufficiently increased, and since it is a gasket, it is elastically deformed and the entire surface is brought into contact, so that reliable and stable conduction can be achieved. state, and the desired shielding effect is obtained.

Furthermore, since the edge member 5 is provided on the outer periphery of the bent edge 4, it is not necessary to fix it watertight and there is no need to apply a sealant. The tap hole eliminates the need for a blind hole, resulting in a simple structure with good workability.

[0015] Thus, it is possible to provide a casing that has reliable and stable waterproofing and shielding effects and is easy to manufacture.

[0016]

EXAMPLES The present invention will be specifically explained below with reference to examples shown in the drawings. The same reference numerals indicate the same objects throughout the figures. An embodiment of the present invention is shown in FIG. 1, (a) is a perspective view of the housing, (b) is a side cross-sectional view before the cover is attached, and (c)
shows a side sectional view after the cover is installed.

This embodiment is applied to the above-mentioned conventional outdoor casing. The housing 1 is as shown in Figure 1(a), and is a waterproof rectangular steel plate housing that houses an electronic device inside.It is equipped with handles (not shown) on both sides so that the entire housing can be lifted and transported. It has rubber cushioning feet on the bottom, and since it will be placed inside a tent, there is no sunshade cover.

The housing 1 includes a metal rectangular parallelepiped housing body 2 with openings on the front and back sides, and a cover 3 whose opening can be opened and closed.
It consists of The opening of the housing body 2 is shown in Figure 2(b).
As shown in the side cross-sectional view, it has a bent edge 4 bent in a Z-shaped cross section, and edge members 5 are fixedly fixed around the outer circumference of the bent edge 4 at intervals of 13 mm.

This edge member 5 has a side surface 4 having a bent edge 4 on one side.
A square stainless steel rod of 10 x 10 mm, the height of which is greater than the width of the conductive gasket 7 on one side, and the width of the other side is greater than the band width of the conductive gasket 7 is used. Screw holes 54 are provided at predetermined intervals.

The waterproof gasket 6 is made of hollow soft neoprene rubber with a cross section of 13 x 13 mm, and the desired watertightness can be obtained by pressing one side and applying compressive deformation of 2 mm or more. Side surface 51 and side surface 41 of bent edge 4
It is attached to the outward circumferential groove formed by the

[0021] The conductive gasket 7 has a width of 8 m and a thickness of 2.5 m.
m band, with thin metal wires arranged at a high density in the thickness direction, and the entire body is integrally molded with hard silicone rubber.When pressure is applied in the thickness direction, the silicone rubber compresses and the thin metal wires appear on the pressed surface. The two surfaces are electrically conductive. However, even if pressure is applied in the width direction, the thin metal wires do not appear and the gasket 7 is a unidirectional conductive gasket that does not become conductive. this,
It is fixed by adhering to the groove 53 of the edge member 5 with an adhesive, and holes are bored at positions corresponding to the screw holes 54. This adhesion can be carried out without using a conductive adhesive because the application of pressure causes thin lines to appear and become electrically conductive.

The cover 3 is made of an iron plate, and necked screws 36 are attached to the edge at predetermined intervals to prevent them from coming off. To fix the cover 3, as shown in FIG. The side surface makes surface contact with the conductive gasket 7 fixed to the edge member 5 and is pressed to be in a conductive state, and also hits the edge of the groove 53 and is fixed.

At the same time, in this state, the waterproof gasket 6 is also pressed to a predetermined position by the cover 3, and is evenly compressed within the groove to provide watertightness to the contact surface. Thus, the same cover 3 and waterproof gasket 6 as in the conventional example described above can be used, and therefore, the detailed dimensions of the casing 1 can be applied without any changes.

The above embodiment is an example, and the dimensions and materials of each part are not limited to these. Furthermore, although a square bar is used as the edge member 5, a straight member formed by bending or pultruding a plate into a U-shaped cross section may also be used. In this case, the groove 53 for the conductive gasket 7 can be omitted.

Furthermore, although screws are used as means for fixing the cover 3, other known techniques for attaching and detaching the cover 3 to the bent edge 4 or the edge member 5 may be used, for example. , a rotating lever with a ring attached to the middle is pivoted on the bent edge 4, a hook on which the ring is hooked is fixed to the cover side, the covers are placed one on top of the other, the ring is hooked on the hook, and the rotating lever is rotated. By pulling down, the ring is pulled to a specified position, that is, by pulling the cover and pressing it to fix it, and by raising the rotating lever in the opposite direction, the tension on the ring is released.
An engaging and fixing means constituted by a lever, a ring, or a hook that can be removed from the hook so that the cover can be removed may also be used.

[0026]

As described above, the casing of the present invention provides a casing that has reliable and stable waterproofing and shielding effects and is easy to manufacture, and has great practical effects.

[Brief explanation of the drawing]

[Fig. 1] One embodiment of the present invention (a) Perspective view of the housing (b) Side sectional view of the state before the cover is attached (c) Side sectional view of the state after the cover is attached

[Figure 2] An example of a conventional outdoor casing (a) Perspective view of the casing (b) Side sectional view before the cover is installed (c) Side sectional view after the cover is installed

[Explanation of symbols]

1,15 Housing 6
Waterproof gasket 52 Front edge surface 2, 25 Housing body 7 Conductive gasket 53 Groove 3 Cover 8 Bush 54 Screw hole

Claims (1)

[Claims] Claim 1: A waterproof outdoor housing (1) for accommodating an electronic device, consisting of a housing main body (2) having an opening and a cover (3) that can freely open and close the opening. It has a bent edge (4) bent in a Z-shape, and an edge member (5) is fixed around the outer circumference of the bent edge (4) at a predetermined interval, and a ring-shaped waterproof gasket (
6) The side surface (51) of the edge member (5) and the bent edge (
4) A ring-shaped conductive gasket (7) is installed in the outward circumferential groove formed by the side surface (41) of the gasket, and when pressure is applied in one direction, the conductive gasket (7) becomes conductive between both end surfaces in the same direction. fixed to the circumferential front edge surface (52) of the edge member (5) and removably screwing or other engaging fixation of the cover (3) to the folded edge (4) or to the edge member (5); An outdoor enclosure characterized by comprising means.