JP2001015939A - Waterproof housing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a waterproof housing which prevents a packing placed on an opening of the housing from falling when a lid is detached from the housing. SOLUTION: A pressure contacting means 6 for pressure contacting a packing 4 into the wall of a packing groove 3 at all times is placed in a housing 2 which constitute a waterproof housing 1 and is provided with the packing groove 3 on the surface of an opening 2a. The pressure contacting means 6 presses the packing 4 against the wall of the packing groove 3 when a lid 5 is separated from the opening 2a of the housing 2 in order to prevent the packing 4 from detaching from the packing groove 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a housing for housing electronic equipment, and more particularly to a structure of a waterproof housing for housing electronic equipment installed in an outdoor environment such as a PHS base station.

[0002]

2. Description of the Related Art Conventionally, there is a so-called waterproof casing, which is a so-called waterproof casing, which is generally used for a casing installed in an outdoor environment.

[0003] For example, the waterproof casing includes a casing used for a PHS base station. In the case of the PHS base station, electronic equipment is disposed inside, and since the case is installed outdoors, liquid substances such as rainwater easily enter the case, and in order to avoid this, usually, A housing housing electronic devices such as a PHS base station is a waterproof housing. This conventional waterproof housing 51 is usually shown in FIG.
The packing groove 3 surrounds the entire periphery of the opening surface 2a as shown in FIG.
, A packing (O-ring) 4 made of an elastic material and mounted in a packing groove 3, and a lid 5 covering an opening surface 2 a of the housing 2. A predetermined clearance L is provided between the packing groove 3 and the packing 4 as shown in FIG.
1 is formed, and a part of the outer peripheral surface of the packing 4 protrudes from the opening surface 2a.

In this conventional waterproof casing 51, in order to bring the casing 2 and the lid 5 into close contact with each other, first, as shown in FIG. The cover 5 covers the opening 2a of the housing 2 as shown by. afterwards,
The lid 5 and the housing 2 are fastened with screws 13. Then, as shown in FIGS. 10 and 9B showing the state of the waterproof casing 51 in which the lid 5 is positioned and mounted on the casing 2, the packing 4 is pressed by the lid 5 and deformed. The housing 2 and the housing 2 are in close contact with each other via the packing 4, and the lid 5 is positioned and fixed to the housing 2.

On the other hand, the lid 5 is usually made of metal,
When the electronic device is mounted on the waterproof housing 51, the electronic device is electrically shielded by covering the electronic device (not shown) disposed in the waterproof housing 51. In the waterproof housing 51 that is brought into close contact with the housing 2, a gap is formed between the housing 2 and the lid 5 by disposing the packing 4, and the gap prevents the electrical shield in the housing 2 from being completely performed. In some cases, a shielded wire may be interposed between the housing 2 and the lid 5 because there is a possibility that the target performance is reduced.

FIG. 11 is an exploded cross-sectional view of an essential part of the waterproof housing in which the shielded wire is provided.
As shown in the figure, the shield wire groove 63 is formed on the entire circumference on the opening surface 2a of the housing 2 and inside the packing groove 3, and the shield wire 62 is provided in the shield wire groove 63. Also, a predetermined clearance L2 is secured between the shield wire groove 63 and the shield wire 62.

The shield wire 62 and the shield wire groove 6
In the conventional waterproof housing 61 provided with the cover 3, when the opening surface 2 a of the housing 2 is covered with the cover 5 as shown by an arrow D, the cover 5 and the housing 2 are interposed via the packing 4 as described above. Because the shield wire 62 is in close contact with the entire circumference of the shield wire 62 and comes into contact with the lid 5, even if a gap is formed between the housing 2 and the lid 5,
The electric shield in the housing 2 is ensured, and the electric shield performance is secured.

Further, in the conventional waterproof housing 61, when the opening 2a of the housing 2 is covered with the lid 5 as described above, the lid 5 is positioned with respect to the housing 2. As shown in FIGS. 12 and 13 which are exploded cross-sectional views of a main part 61, a fitting groove 65 (FIG. 12) or a through hole 66 (FIG.
3) is formed, and a guide pin 64 formed upward is formed on the opening surface 2a of the housing 2, so that the fitting groove 65 (FIG. 12) or the through hole 66 (FIG. 13) is formed. ,
The positioning is performed by fitting to the guide pin 64. 12 and 13, the same parts as those in FIG. 11 are denoted by the same reference numerals.

[0009]

According to the conventional waterproof casings 51 and 61 described above, the space between the packing groove 3 and the packing 4 is shown in FIG. Since a predetermined clearance L1 is formed, for example, when the housing 2 from which the lid 5 is detached is tilted with the opening surface 2a facing downward, the packing 4 is
From the case 2 and fall easily, and therefore, there is a problem that the workability of attaching and detaching the lid 5 to and from the housing 2 is poor.

In order to solve this problem, there is a method of fixing the packing 4 to the packing groove 3 with an adhesive or the like.
Then, the elastic force of the packing 4 is deteriorated due to a chemical reaction or the like between the packing 4 and the adhesive, thereby causing a problem that the adhesion between the lid 5 and the housing 2 is reduced.

Further, in order to improve the electric shielding property in the housing 2 accommodating an electronic device such as a PHS base station, FIG.
As shown in FIG. 1, a shield wire 62 is provided between the housing 2 and the lid 5.
Is used, a predetermined clearance L is provided between the shield wire groove 63 and the shield wire 62.
For example, when the housing 2 from which the lid 5 is detached and the opening surface 2a is inclined downward as in the case of the packing 4 described above, the shield wire 62 is also formed in the shield wire groove 63.
There is a problem in that the lid 5 is easily detached from the inside and falls, and thus the workability of attaching and detaching the lid 5 to and from the housing 2 is poor.

In the conventional waterproof housing 61, when the cover 5 is positioned with respect to the housing 2, a fitting groove 65 formed in the cover 5 is inserted into the housing 2 as shown in FIG. When the positioning is performed by fitting to the formed guide pin 64, the position of the fitting groove 65 is not visible from above the cover 5 when the opening 2 a of the housing 2 is covered with the cover 5. If it is difficult to fit the guide pins 64 accurately, and the lid 5 is fastened to each other without being accurately positioned with respect to the housing 2, the lid 5 and the housing 2 are completely adhered to each other. A problem arises. Further, as shown in FIG. 13, a guide pin 64 formed in the housing 2 is fitted into a through hole 66 formed in the cover 5 to position the cover 5 with respect to the housing 2. Although the positioning is accurate and simple, the through hole 66 and the guide pin 64 are
1 is exposed to the outside, so that liquids such as rainwater easily enter, and when the liquids enter, corrosion occurs and the waterproof housing 6 is exposed.
There was a problem that the waterproof performance of No. 1 deteriorated.

In view of the above-mentioned circumstances, a first object of the present invention is to provide a waterproof casing which prevents a packing disposed on an opening surface of a casing from falling when a lid is detached from the casing. It is to be.

A second object of the present invention is to prevent the packing disposed on the opening surface of the housing from dropping when the cover is detached from the housing and to position the lid with respect to the housing. It is an object of the present invention to provide a waterproof housing that is easy to use and that ensures electrical shielding.

[0015]

In order to solve the above-mentioned problems, a first waterproof casing of the present invention has a casing having a packing groove formed on an opening surface, and a resilient member mounted in the packing groove. A packing made of a material, comprising a lid covering the opening surface, and when covering the opening surface of the housing with the lid, pressing the packing with the lid to cover the lid and the housing. In the waterproof housing, the housing is provided with pressure contact means for constantly pressing the packing against the wall surface of the packing groove, and the pressure contact means connects the lid to the wall of the housing. When the packing is separated from the opening surface, the packing is pressed against the wall surface of the packing groove to prevent the packing from separating from the packing groove.

Further, in the second waterproof housing of the present invention, a housing having a packing groove formed in an opening surface, a packing made of an elastic material mounted in the packing groove, and a lid covering the opening surface. A cover for covering the opening surface of the housing with the lid when pressing the packing with the lid so that the lid and the housing are in close contact with each other. A projection formed on the inner wall surface of the body toward the inside of the housing, a pressing means provided on the housing, and constantly pressing the packing against a wall surface of the packing groove; When covering the opening surface of the housing with a body, the positioning device includes positioning contact means for contacting the inner wall surface of the lid and pressing the projection, and the lid is separated from the opening surface of the housing. At this time, the pressure contacting means is configured to insert the packing into the packing groove. Prevents the packing from coming off the packing groove by pressing against a wall surface, and when covering the opening surface of the housing with the lid, the positioning contact means contacts the inner wall surface of the lid. The lid is positioned with respect to the housing by pressing the protrusion while providing an electrical shield in the housing.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION The first waterproof casing and the second waterproof casing of the present invention will be described below in detail with the waterproof casing of the first embodiment and the waterproof casing of the second embodiment, respectively. Will be described.

The waterproof casing 1 of the first embodiment, which is the first waterproof casing of the present invention, has a packing groove 3 in an opening surface 2a as shown in FIG. The formed housing 2, a packing (O-ring) 4 made of an elastic material mounted in the packing groove 3, and a lid 5 covering the opening surface 2 a
And a pressing means 6 disposed on the housing 2 for constantly pressing the packing 4 against the wall surface of the packing groove 3 and a fixing means 10 for fixing the lid 5 to the housing 2.

Among them, the packing groove 3 formed in the housing 2 is, as shown in FIG.
Is formed so as to surround the entire circumference of the opening surface 2a. A packing 4 is provided in the packing groove 3, and a part of the outer peripheral surface of the packing 4 is an open surface as shown in FIG. 2a. A predetermined clearance L1 is provided between the packing 4 and the packing groove 3 of the housing 2.

The pressure contact means 6 extends toward the wall surface of the packing groove 3, and the packing 4 is connected to the packing groove 3 at the tip 6a.
And a rear end portion 6b extending toward the inside of the housing 2 and fixed to the housing 2 with screws 7.
It is composed of a plate-shaped metal elastic body consisting of
As shown in FIG. 2, a plurality of the pressure contact means 6 are provided in the housing 2 so as to surround the opening surface 2a from the inside.

As shown in FIG. 1, the fixing means 10 has a screw hole 11 formed outside the packing groove 3 on the opening surface 2a of the housing 2 and a screw hole formed outside the lid 5 as shown in FIG. Hole 1
2 and a screw 13 screwed into the screw holes 11 and 12.

In the waterproof housing 1 thus configured, the housing 2 and the lid 5 are brought into close contact with each other, as shown in FIG. The screw hole 12 is aligned with the screw hole 12, and the cover 5 covers the opening 2 a of the housing 2 as shown by the arrow A. Then, as shown in FIG.
When a screw 13 is screwed into a screw hole 11 of the housing 2 and a screw hole 12 of the lid 5 which is positioned and aligned with the screw hole 11, the screw 13 is turned on as shown in FIG.
As shown in FIG. 4 in which the same parts as those in FIG. 4 are denoted by the same reference numerals, and FIG. 3B in which the same parts in FIG. 5
The housing 2 and the housing 2 are in close contact with each other via the packing 4, and the lid 5 is positioned and fixed to the housing 2.

On the other hand, in the waterproof housing 1, the pressing means 6 always presses the packing 4 against the wall surface of the packing groove 3 at the tip 6 a of the tip 6 c, and separates the lid 5 from the opening surface 2 a of the housing 2. When the lid 5 is detached from the housing 2,
When the housing 2 is inclined with its opening surface 2a facing downward,
The pressing means 6 presses the packing 4 against the wall surface of the packing groove 3 at the front end 6a of the front end portion 6c.
Even if a predetermined clearance L1 is formed between the packing groove 3 and the packing 4,
It can be prevented as much as possible from falling off from the device. Therefore, the work of detaching the lid 5 from the housing 2 is simplified, and the workability can be improved.

Further, in the waterproof housing 1 of the first embodiment, a plurality of press-contact means 6 for constantly pressing the packing 4 against the wall surface of the packing groove 3 are provided so as to surround the opening surface 2a of the housing 2. Therefore, the sealing force between the packing 4 and the housing 2 is even stronger, and when the lid 5 is detached from the housing 2, the housing 2 is tilted with its opening surface 2 a facing downward from any direction. Even in this case, it is possible to prevent the packing 4 from being detached from the packing groove 3 and falling as much as possible. Workability can be further improved.

In the waterproof casing 1 according to the first aspect of the present invention, in order to prevent the packing 4 from falling off the packing groove 3 when the casing 2 is inclined with its opening surface 2a facing downward. Since it is not necessary to fix the packing 4 to the packing groove 3 with an adhesive or the like as in the related art, the casing 2 is deteriorated due to deterioration of the elastic force of the packing 4 due to chemical bonding with the adhesive or the like.
There is no problem that the adhesion of the lid 5 to the cover 5 is reduced.

Further, in the waterproof housing 1 of the first embodiment, as shown in FIG. The packing 4 was pressed against the wall surface of the packing groove 3.
In the first waterproof housing of the present invention, the number of the press contact means 6 provided on the housing 2 is not limited to this, and for example, the press contact means 6 provided on the housing 2 may include a plurality of press contact means. The packing 6 may be formed of one elastic body integrally formed, and the packing 4 may be pressed against the wall surface of the packing groove 3 at a plurality of positions by the respective pressing means 6.

Further, in the waterproof housing 1 of the first embodiment, the elastic body constituting the press-contact means 6 is provided at the front end 6c of the front end 6c.
The packing 4 is constantly pressed against the wall surface of the packing groove 3 at a. This elastic body is a means for simultaneously positioning the lid 5 with respect to the housing 2 or a means for providing an electrical shield in the housing 2. Is also good.

Next, in the waterproof housing according to the second aspect of the present invention, as described above, the elastic body constituting the press-contact means simultaneously has the means for positioning the lid with respect to the housing and the inside of the housing. A waterproof housing that also has a means for providing electrical shielding will be described in detail in the waterproof housing of the second embodiment.

As shown in FIG. 5 which is a conceptual cross-sectional view of a main part of the waterproof housing, the waterproof housing 21 according to the second embodiment includes a housing 2 having a packing groove 3 formed on an opening surface 2a, and a packing groove. A packing (O-ring) 4 made of an elastic material mounted in 3;
A metal lid 5 covering the opening surface 2a, and an inner wall surface 5 of the lid 5
a, a projection 22 formed on the inside of the housing 2, a press-contact means 26 disposed on the housing 2 and constantly pressing the packing 4 against the wall surface of the packing groove 3, a cover 22 provided on the housing 2, 5 and housing 2
A positioning contacting unit 31 that contacts the inner wall surface 5a of the lid 5 and presses the projection 22 when covering the opening surface 2a of
And a fixing means 10 for fixing the lid 5 to the housing 2.

As shown in FIG. 5, the pressing means 26 is made of a plate-like metal elastic body having a forked end 26c and a rear end 26b having a hole 27 formed therein. It is configured. In addition, the tip portion 26c of the elastic body includes
As shown in FIG. 6 showing a conceptual perspective view of the elastic body, a plurality of first tip portions 26d and second tip portions 26e formed of tongue pieces having tips formed in opposite directions are formed. ing. 5 and 6, the same parts as those in FIG. 1 are indicated by the same reference numerals.

The elastic body serving as the pressure contact means 26 is fixed to the housing 2 by inserting a screw 28 shown in FIG. 5 into a hole 27 formed in the rear end 26b. When the elastic body is fixed to the housing 2 in this manner, the distal end portion 26c of the elastic body
As shown in FIG. 5, the first tip 26 d extends toward the wall surface of the packing groove 3, and the second tip 26 e extends toward the projection 22.

The first tip 26d extending toward the wall surface of the packing groove 3 always presses the packing 4 against the inner wall of the packing groove 3 at the tip 26a.

In order to bring the lid 5 into close contact with the housing 2 on which the elastic body serving as the press-contact means 26 is mounted, first, the screw holes 11 of the lid 2 and the screw holes 12 of the lid 5 are formed. And the cover 5 covers the opening 2a of the housing 2.
Then, the screw hole 11 of the housing 2 shown in FIG.
A screw 13 is inserted into the screw hole 12 of
3 is screwed, the packing 4 is pressed and deformed by the lid 5 as shown in FIG. 3B and FIG. 5, whereby the housing 2 and the lid 5 come into close contact with each other via the packing 4. At the same time, the lid 5 is positioned and fixed to the housing 2.

When the housing 2 and the lid 5 are in close contact with each other via the packing 4 and the lid 5 is positioned and fixed with respect to the housing 2, the second distal end portion 26e of the elastic body is formed.
The projections 22 disposed on the lid 5 on the other side 26g while contacting the inner wall 5a of the lid 5 on one side 26f.
Press.

As described above, when the second end portion 26e of the elastic body contacts the inner wall surface 5a of the lid 5 at one side surface 26f,
Since the elastic body is electrically connected to the metal lid 5, an electrical shield in the housing 2 can be achieved.
1 can secure the electrical shielding performance. Therefore, the waterproof casing 21 of the second embodiment is particularly effective for a casing that accommodates an electronic device such as a PHS base station installed outdoors.

Further, in the waterproof housing 21 of the second embodiment,
The shield wire 62 and the opening 2a of the housing 2 as in the prior art
Without providing a shield wire groove 63 (FIG. 11) in the waterproof housing 21 by merely covering the opening 2a of the housing 2 with the lid 5.
Since it is possible to electrically shield the internal electronic devices, the problem that the shield wire 62 separates from the shield wire groove 63 does not occur, and the electrical shield can be reliably achieved.

On the other hand, when the housing 2 and the lid 5 are brought into close contact with each other via the packing 4 and the lid 5 is positioned and fixed to the housing 2 as described above, as described above, the distal end of the elastic body is formed. 26c, the second end portion 26e is the other side surface 26g.
By pressing the projection 22 of the lid 5 in the direction along the opening surface 2a, the lid 5 can be easily positioned with respect to the housing 2 in the direction along the opening surface 2a. In addition, the lid 5 can be securely brought into close contact with the housing 2.

That is, in the waterproof housing 21 of the second embodiment according to the second invention, the second tip 26e formed on the tip 26c of the elastic body is connected to the positioning contact means 3 described above.
1, the lid 5 is simply attached to the housing 2,
The electric shielding inside the housing 2 can be achieved to ensure the electric shielding performance of the waterproof housing 21, and the lid 5 can be securely and easily moved in the direction along the opening surface 2 a with respect to the housing 2. Can be positioned.

Further, in the waterproof housing 21 of the second embodiment,
The elastic body serving as the positioning contact means 31 has a tip portion 26c.
In addition, since a plurality of second tip portions 26e formed of tongue pieces are formed, electrical shielding is achieved at the plurality of locations,
In addition, since the lid 5 is positioned with respect to the housing 2, the electrical shielding performance of the waterproof housing 21 is further improved, and the lid 5 can be more securely brought into close contact with the housing 2.

Further, in the waterproof housing 21 of the second embodiment according to the second invention, the pressure contact means 26 made of an elastic body is used.
Is a first tip 26d formed at the tip 26c.
The packing 4 is constantly pressed against the wall surface of the packing groove 3 so that when the lid 5 is detached from the housing 2, even if the housing 2 is inclined with its opening surface 2 a directed downward, The packing 4 is pressed against the packing groove 3, whereby the packing 4 can be prevented from falling off the packing groove 3 as much as possible. Therefore, the work of attaching and detaching the lid 5 to and from the housing 2 can be simplified, and the attaching and detaching workability can be improved. Further, in the waterproof housing 21 of the second embodiment,
Since the elastic body serving as the press-contact means 26 has a plurality of first tip portions 26d formed of tongue pieces at the tip portion 26c,
The sealing force between the packing 4 and the housing 2 can be further strengthened. Therefore, when the lid 5 is detached from the housing 2, the housing 2 is tilted with its opening surface 2 a downward from any direction. Even so, it is possible to further prevent the packing 4 from detaching from the packing groove 3 and dropping, thereby making it easier to attach and detach the cover 5 to and from the housing 2 and to make attaching and detaching work easier. Can be further improved. In the waterproof casing 21 according to the second aspect of the present invention, the packing 4 is prevented from falling off the packing groove 3 when the casing 2 is inclined with its opening surface 2a facing downward. Since the packing 4 does not need to be fixed to the packing groove 3 with an adhesive or the like, the adhesion of the lid 5 to the housing 2 is reduced due to the deterioration of the elastic force of the packing 4 due to chemical bonding with the adhesive or the like. The problem does not arise.

Therefore, according to the waterproof casing 21 of the second embodiment according to the second invention, when the casing 2 and the lid 5 are detached, the packing 4 disposed on the opening 2a of the casing 2 Can be prevented from falling off from the packing groove 3 as much as possible, the positioning of the lid 5 with respect to the housing 2 can be facilitated, and the electrical shielding property can be reliably ensured.

Further, in the waterproof housing 21 according to the second invention, at least one elastic body integrally formed with the press-contact means 26 and the positioning contact means 31 may be provided in the housing 2, for example, As shown in FIG. 7, when a plurality of elastic bodies, which are the press contact means 26 and the positioning contact means 31, are disposed in the housing 2, the packing 4 can be prevented from dropping in more places and an electric shield can be provided. Further lid 5
Is positioned with respect to the housing 2 so that the packing 4 can be further prevented from falling due to detachment, the electric shielding performance can be further improved, and the lid 5 can be positioned more reliably with respect to the housing 2. it can. FIG. 7 is a conceptual cross-sectional view of a principal part showing a waterproof housing according to the second invention, and shows a state when the lid 5 is attached to the housing 2.

In the waterproof casing 21 of the second embodiment,
As described above, the elastic body in which the press contact means 26 and the positioning contact means 31 are integrally formed is a first tip 2 made of a tongue.
6d and a second tip 26e composed of a tongue piece, each of which is provided with a plurality. However, the number of the press contact means 26 and the positioning contact means 31 provided on the elastic body, that is, the first The number of the tongue pieces forming the distal end portion 26d and the second distal end portion 26e is not limited to this.
6. Each of the positioning contact means 31 has at least a first
It is sufficient if one end portion 26d and one second end portion 26e are provided, and a plurality of such elastic bodies may be provided in the housing 2.

[0044]

As described above, in the first waterproof housing of the present invention, the housing is provided with the press-contact means for constantly pressing the packing against the wall surface of the packing groove. When the packing is separated from the opening surface of the body, the packing is pressed against the wall surface of the packing groove by the pressing means, so that the packing can be prevented from falling off the packing groove as much as possible.

In the first waterproof casing of the present invention, in order to prevent the packing from coming off the packing groove and falling when the casing is tilted with its opening face downward.
Since there is no need to fix the packing in the packing groove with an adhesive or the like as in the related art, there is also a problem that the adhesion of the lid to the housing is reduced due to deterioration of the elastic force of the packing due to chemical bonding with the adhesive. Never.

Further, in the second waterproof casing of the present invention, a projection formed on the inner wall surface of the lid and directed toward the inside of the casing, and a pressure contact disposed on the casing and constantly pressing the packing against the wall surface of the packing groove. Means and a positioning contacting means disposed on the housing and contacting the inner wall surface of the lid and pressing the projection when covering the opening surface of the housing with the lid. When separating the packing from the opening surface of the housing, the pressing means can prevent the packing from coming off the packing groove by pressing the packing against the wall surface of the packing groove, and when covering the opening surface of the housing with the lid, The positioning contact means contacts the inner wall surface of the lid to provide an electrical shield in the housing, and presses the projection to position the lid with respect to the housing, so that the positioning of the lid with respect to the housing is easy, Moreover, it is possible to reliably secure the electrical shielding property.

[Brief description of the drawings]

FIG. 1 is a first waterproof housing according to the present invention;
FIG. 5 is an exploded conceptual cross-sectional view of the waterproof housing of the embodiment.

FIG. 2 is a first waterproof housing according to the present invention;
FIG. 4 is a conceptual cross-sectional view of a housing constituting the waterproof housing of the embodiment.

FIGS. 3A and 3B are enlarged cross-sectional views of a main part of FIG. 2, wherein FIG. 3A shows a state before the lid is attached, and FIG.

FIG. 4 is a first waterproof housing according to the present invention;
Sectional drawing which shows a mode that the lid | cover was positioned and attached to the housing | casing in the waterproof housing | casing of Example of FIG.

FIG. 5 is a second waterproof housing according to the present invention;
The principal part expanded sectional view of the waterproof housing | casing of Example of FIG.

FIG. 6 is a conceptual perspective view showing an elastic body that constitutes a press contact unit and a positioning contact unit of the second waterproof housing shown in FIG. 5;

FIG. 7 is a conceptual sectional view of a second waterproof housing of the present invention.

FIG. 8 is an exploded sectional view of a conventional waterproof housing.

FIGS. 9A and 9B are enlarged conceptual views of the main part of FIG. 8, wherein FIG. 9A shows a state before the lid is attached, and FIG. 9B shows a state after the ha lid is attached.

FIG. 10 is a cross-sectional view showing a conventional waterproof housing in which a lid is positioned and mounted on the housing.

FIG. 11 is an exploded cross-sectional view of a main part of a conventional waterproof housing provided with a shield wire.

FIG. 12 is an exploded cross-sectional view of a main part of a conventional waterproof housing having a fitting groove.

FIG. 13 is an exploded cross-sectional view of a main part of a conventional waterproof housing having a through hole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 21 ... Waterproof housing 2 ... Housing 2a ... Opening surface 3 ... Packing groove 4 ... Packing (O-ring) 5 ... Lid 5a ... Inner wall surface 6, 26 ... Pressure contact means 6a, 26a ... Tip 6b, 26b ... Rear Ends 6c, 26c: Tip 22: Projection 26d: First tip 26e: Second tip 26f: One side 26g: Other side 31: Positioning contact means

Claims (4)

[Claims] 1. A housing having a packing groove formed on an opening surface,
It comprises a packing made of an elastic material mounted in the packing groove, and a lid covering the opening surface.When the opening surface of the housing is covered with the lid, the packing presses the packing with the lid. In the waterproof housing in which the lid and the housing are brought into close contact with each other, the housing is provided with pressing means for constantly pressing the packing against the wall surface of the packing groove, When the lid is separated from the opening surface of the housing, the packing is pressed against a wall surface of the packing groove to prevent the packing from separating from the packing groove. body. 2. The pressure contact means extends toward the wall surface of the packing groove, and has a tip portion which constantly presses the packing against the wall surface of the packing groove at a tip, and extends toward the inside of the housing, 2. The waterproof housing according to claim 1, wherein the waterproof housing is formed of a plate-like elastic body including a rear end portion fixed to the housing. 3. A housing having a packing groove formed on an opening surface thereof.
It comprises a packing made of an elastic material mounted in the packing groove, and a lid covering the opening surface.When the opening surface of the housing is covered with the lid, the packing presses the packing with the lid. In the waterproof housing in which the lid and the housing are brought into close contact with each other, a projection formed on the inner wall surface of the lid toward the inside of the housing, Pressing means for constantly pressing against the wall surface of the packing groove, disposed on the housing, and contacting the inner wall surface of the lid and pressing the projection when covering the opening surface of the housing with the lid. When the lid is separated from the opening surface of the housing, the pressing means presses the packing against a wall surface of the packing groove, and the packing separates from the packing groove. Prevents the front with the lid When covering the opening surface of the housing, the positioning contacting means contacts the inner wall surface of the lid to achieve an electrical shield in the housing, and presses the protrusion to form the housing against the housing. A waterproof housing, wherein the lid is positioned. 4. The pressure contact means and the positioning contact means,
An elastic body consisting of a forked front end and a rear end extended toward the inside of the housing and fixed to the housing is integrally formed, and the front end is a wall surface of the packing groove. A first tip extending toward the projection and a second tip extending toward the projection. When the lid is separated from the opening surface of the housing, the first tip The part presses the packing against the wall surface of the packing groove to prevent the packing from coming off from the packing groove, and when covering the opening surface of the housing with the lid, the second tip part One side surface contacts the inner wall surface of the lid to achieve an electrical shield in the housing, and presses the protrusion on the other side surface of the second distal end to press the lid against the housing. The waterproof housing according to claim 3, wherein the watertight casing is positioned.