JPWO2021014497A1 - Structure of waterproof packing of electronic device housing and electronic device housing - Google Patents

Abstract

The structure of the waterproof packing (6) of the electronic device housing is before the bottom (4) and the first wall (9) and the second wall (10) projecting vertically from the bottom (4) are provided. A waterproof packing (6) installed in a groove (200) formed by a cover (1), a bottom (4), a first wall (9), and a second wall (10), and a front cover (1). ) Is provided, and the front cover (1) has a rear cover (2) on which a receiving surface (8) for crushing the waterproof packing (6) is formed. In the structure of the waterproof packing (6), the waterproof packing (6) is characterized in that it is in contact with the first wall (9) and the bottom (4) and is separated from the second wall (10).

Description

The present invention relates to a structure of a waterproof packing of an electronic device housing that fills a gap in the electronic device housing and an electronic device housing.

The electronic device housing may be composed of two covers. In order to realize a waterproof structure of an electronic device housing, an elastic waterproof packing such as rubber is often used as a component for filling the gap between the covers. As for the shape of the waterproof packing, from the viewpoint of versatility or manufacturability, the cross-sectional shape of the waterproof packing is often a round shape, a rectangular shape, or the like. Patent Document 1 discloses a waterproof packing that is inserted into a groove provided in a housing and is in contact with two left and right surfaces forming the groove.

Japanese Unexamined Patent Publication No. 2011-231908

However, since the waterproof packing described in Patent Document 1 is in contact with the left and right two surfaces, friction occurs between the waterproof packing and the left and right two surfaces when the waterproof packing is attached and detached, and the waterproof packing is difficult to attach and detach and is difficult to assemble. There was a problem that it could get worse.

The present invention has been made in view of the above, and an object of the present invention is to obtain a structure of a waterproof packing for an electronic device housing, which can improve assemblability while ensuring waterproofness by the waterproof packing.

In order to solve the above-mentioned problems and achieve the object, the structure of the waterproof packing of the electronic device housing according to the present invention includes a bottom, a first wall and a second wall protruding vertically from the bottom, and the like. A first cover comprising, a waterproof packing installed in a groove formed by a bottom, a first wall, and a second wall, and an opening covered by the first cover are provided. In the structure of the waterproof packing having a second cover formed with a receiving surface for crushing the waterproof packing with the opening covered by the cover, the waterproof packing comes into contact with the first wall and the bottom and is second. It is characterized by being separated from the wall of.

The structure of the waterproof packing of the electronic device housing according to the present invention has an effect that the assembling property can be improved while ensuring the waterproof property by the waterproof packing.

An exploded perspective view of the electronic device housing according to the first embodiment as viewed from above. An exploded perspective view of the electronic device housing according to the first embodiment as viewed from below. A perspective view of the electronic device housing according to the first embodiment as viewed from above. A perspective view of the electronic device housing according to the first embodiment as viewed from below. Front view of the electronic device housing according to the first embodiment Right side view of the electronic device housing according to the first embodiment Rear view of the electronic device housing according to the first embodiment Bottom view of the electronic device housing according to the first embodiment Cross-sectional view of the electronic device housing in the IX-IX line of FIG. Cross-sectional view of the electronic device housing when the rear cover receiving surface and the main protrusion according to the first embodiment are in contact with each other. Cross-sectional view of the electronic device housing when the waterproof packing according to the first embodiment and the rear cover are in contact with each other. Cross-sectional view of the electronic device housing according to the second embodiment The figure which shows the front cover which concerns on Embodiment 3. Enlarged view of a part of the front cover according to the third embodiment Cross-sectional view of the front cover in the XV-XV line of FIG. Sectional drawing of the front cover in line XVI-XVI of FIG.

Hereinafter, the structure of the waterproof packing of the electronic device housing and the electronic device housing according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is an exploded perspective view of the electronic device housing 100 according to the first embodiment as viewed from above. FIG. 2 is an exploded perspective view of the electronic device housing 100 according to the first embodiment as viewed from below. FIG. 3 is a perspective view of the electronic device housing 100 according to the first embodiment as viewed from above. FIG. 4 is a perspective view of the electronic device housing 100 according to the first embodiment as viewed from below. FIG. 5 is a front view of the electronic device housing 100 according to the first embodiment. FIG. 6 is a right side view of the electronic device housing 100 according to the first embodiment. FIG. 7 is a rear view of the electronic device housing 100 according to the first embodiment. FIG. 8 is a bottom view of the electronic device housing 100 according to the first embodiment. The electronic device housing 100 includes a front cover 1, a rear cover 2, and a waterproof packing 6. The rear cover 2 is a box body in which the opening 3 is formed. The opening 3 is covered with the front cover 1. The outer edge of the opening 3 comes into contact with the front cover 1. The waterproof packing 6 is provided at a portion where the front cover 1 comes into contact with the outer edge of the opening 3. The waterproof packing 6 is crushed when the outer edge of the opening 3 comes into contact with the front cover 1. The front cover 1 is the first cover. The rear cover 2 is a second cover.

FIG. 9 is a cross-sectional view of the electronic device housing 100 in the IX-IX line of FIG. The front cover 1 includes a bottom portion 4, a first wall 9, a second wall 10, and an outer wall 11. The bottom portion 4 has a receiving surface 41 that comes into contact with the waterproof packing 6. The first wall 9 and the second wall 10 project vertically toward the rear cover 2 from the surface of the bottom 4 facing the rear cover 2. The outer wall 11 is provided at the end of the bottom portion 4, and projects vertically from the surface of the bottom portion 4 facing the rear cover 2 toward the rear cover 2. The height of the outer wall 11 starting from the bottom 4 is higher than the height of the first wall 9 and the second wall 10 starting from the bottom 4. The first wall 9, the second wall 10, and the outer wall 11 are formed along the outer edge of the bottom 4. The first wall 9 and the second wall 10 are formed in an annular shape around a portion where the front cover 1 contacts the outer edge of the opening 3. The first wall 9 is provided at a position closer to the center of the bottom 4 than the second wall 10. In other words, the first wall 9 is provided inside the second wall 10 formed in an annular shape.

The first wall 9 has a first surface 91 in contact with the waterproof packing 6. The second wall 10 has a second surface 101 facing the first surface 91. The groove 200 is formed by a bottom 4, a first wall 9, and a second wall 10. In other words, the groove 200 is formed by the receiving surface 41, the first surface 91, and the second surface 101. The groove 200 is formed along the outer circumference of the front cover 1. The first wall 9 is provided along the inner circumference of the groove 200. The second wall 10 is provided along the outer circumference of the groove 200. The waterproof packing 6 is installed in the groove 200 in contact with the first surface 91 and the receiving surface 41. The rear cover 2 has a rear cover receiving surface 8. The rear cover receiving surface 8 is the outer edge of the opening 3, and is the surface that comes into contact with the waterproof packing 6 when the opening 3 is covered by the front cover 1.

The height of the waterproof packing 6 starting from the bottom 4 is higher than that of the first wall 9 and the second wall 10 starting from the bottom 4. Further, the height of the waterproof packing 6 starting from the bottom 4 is higher than the height of the groove 200 starting from the bottom 4. Therefore, the rear cover 2 crushes the waterproof packing 6 when covering the groove 200. The waterproof packing 6 has a packing first surface 61 which is a surface that comes into contact with the receiving surface 41 of the bottom portion 4. Further, the waterproof packing 6 has a packing second surface 62 which is a surface that comes into contact with the rear cover receiving surface 8. Further, the waterproof packing 6 has a packing third surface 63 which is a surface that comes into contact with the first surface 91. Further, the waterproof packing 6 has a packing fourth surface 64 which is a surface opposite to the packing third surface 63. The fourth surface 64 of the packing faces the second surface 101. That is, a gap is provided between the fourth surface 64 of the packing and the second surface 101. That is, the waterproof packing 6 is in contact with the first wall 9 and the bottom 4. The waterproof packing 6 is separated from the second wall 10.

When water pressure is applied to the fourth surface 64 of the packing, the waterproof packing 6 is pushed toward the first wall 9. When the waterproof packing 6 does not come into contact with the first wall 9 and there is a gap between the waterproof packing 6 and the first wall 9, the waterproof packing 6 is deformed to the first wall 9 side by water pressure. There is. If the waterproof packing 6 is deformed, the waterproof performance of this portion is deteriorated, and water may infiltrate. On the other hand, if the waterproof packing 6 is in contact with the first wall 9 as described in the present embodiment, the waterproof packing 6 is deformed to the first wall 9 side by the water pressure applied to the fourth surface 64 of the packing. Can be suppressed. Therefore, it is possible to prevent deterioration of the waterproof performance and prevent water from entering the inside of the electronic device housing 100.

In the present embodiment, the waterproof packing 6 is in contact with the first wall 9 and is separated from the second wall 10. Therefore, as compared with the case where the waterproof packing 6 is in contact with the first wall 9 and the second wall 10, there is no friction with the second wall 10 when the waterproof packing 6 is attached / detached, and the waterproof packing 6 has no friction. Easy to put on and take off. Further, in the present embodiment, since the waterproof packing 6 is separated from the second wall 10, the waterproof packing 6 becomes larger in the direction of the packing third surface 63 or the packing fourth surface 64 due to an error during manufacturing or the like. Even if this happens, it is possible to prevent the waterproof packing 6 from becoming difficult to insert into the groove 200 due to the interference of the second wall 10.

The packing first surface 61 and the packing second surface 62 each have one main protrusion 7a and two auxiliary protrusions 7b. The height of the main protrusion 7a starting from the bottom portion 4 is higher than the height of the sub-projection 7b starting from the bottom portion 4. The main protrusion 7a is provided at the center of the cross section of the packing first surface 61 and the cross section of the packing second surface 62 shown in FIG. The two auxiliary protrusions 7b are provided on both sides of the main protrusion 7a of the packing first surface 61 and the packing second surface 62. The waterproof packing 6 has a shape symmetrical with respect to a center line 51 passing through the center 50 of the waterproof packing 6. The center line 51 is a line parallel to the receiving surface 41 and the rear cover receiving surface 8. Therefore, if the waterproof packing 6 is arranged so as to come into contact with the surface having the main protrusion 7a and the sub-projection 7b, that is, the first surface 61 of the packing or the second surface 62 of the packing so as to come into contact with the receiving surface 41, the electronic device housing 100 Waterproof performance can be ensured. In the present embodiment, the packing first surface 61 and the packing second surface 62 each have one main protrusion 7a and two sub-projections 7b, but the main projection 7a has one or more and the sub-projections 7b have one or more. There may be two or more, and the number of these is not limited.

FIG. 10 is a cross-sectional view of the electronic device housing 100 when the rear cover receiving surface 8 and the main protrusion 7a according to the first embodiment are in contact with each other. The height of the main protrusion 7a is higher than the height of the sub-protrusion 7b, and this difference is slightly smaller. The reason why the sub-projection 7b is made lower than the main projection 7a is to prevent the sub-projection 7b from being higher than the main projection 7a due to tolerance. Since the main protrusion 7a is higher than the sub-projection 7b, a minute gap 14 is formed between the rear cover receiving surface 8 and the waterproof packing 6.

If the sub-projection 7b is higher than the main projection 7a due to tolerance, the seating of the waterproof packing 6 becomes unstable. Therefore, the provision of the minute gap 14 increases the stability of the waterproof packing 6 when seated. To be secured. Further, if the minute gap 14 is large, the auxiliary protrusion 7b may not come into contact with the rear cover receiving surface 8 when the rear cover 2 crushes the waterproof packing 6. Further, if the minute gap 14 is large, the waterproof packing 6 needs to be balanced only by the main protrusion 7a, the installation position of the waterproof packing 6 is not stable, and the assembling property to the bottom 4 and the rear cover receiving surface 8 is poor. Become. Therefore, it is preferable that the gap is small. Therefore, in consideration of the assembling property of the waterproof packing 6, the sub-projection 7b is formed to be slightly smaller than the main projection 7a.

FIG. 11 is a cross-sectional view of the electronic device housing 100 when the waterproof packing 6 according to the first embodiment and the rear cover 2 are in contact with each other. As shown in FIG. 11, the waterproof packing 6 is crushed and compressed by the rear cover 2 to ensure the waterproof performance of the electronic device housing 100. Further, since the waterproof packing 6 has two sub-projections 7b in addition to the main projection 7a, even if any one of the main projection 7a and the sub-projection 7b loses waterproofness due to a defect or the like, the other Waterproof performance can be ensured by the protrusions.

As described above, in the present embodiment, the waterproof packing 6 is in contact with the first wall 9 and the bottom 4, separated from the second wall 10, and the height of the waterproof packing 6 starting from the bottom 4. Is higher than the first wall 9 and the second wall 10. Therefore, the structure of the waterproof packing 6 can prevent the waterproof packing 6 from being deformed toward the first wall 9 side due to the water pressure applied to the fourth surface 64 of the packing. Therefore, it is possible to prevent deterioration of the waterproof performance and prevent water from entering the inside of the electronic device housing 100. Further, since the waterproof packing 6 is in contact with the first wall 9 and the bottom 4 and separated from the second wall 10, the waterproof packing 6 can be easily attached and detached. Further, even if the waterproof packing 6 becomes large in the direction of the packing third surface 63 or the packing fourth surface 64 due to an error during manufacturing, it is possible to prevent the waterproof packing 6 from becoming difficult to be inserted into the groove 200. can.

In the present embodiment, the waterproof packing 6 is installed in the groove 200 having the first wall 9 and the second wall 10 as the side walls, but the second wall 10 does not necessarily have to be provided. In this case, even if the outer wall 11 of the front cover 1 is used as the second wall 10 and the waterproof packing 6 is arranged in the groove having the first wall 9 and the outer wall 11 as the side walls, the same effect as that of the present embodiment can be obtained. can get. When the second wall 10 is provided, the second wall 10 has a guide function so as not to be deformed more than necessary when the waterproof packing 6 is assembled, and the outer wall 11 has a height higher than that of the second wall 10. Therefore, the protection function against the direct water flow from the outside can be improved.

Embodiment 2.
FIG. 12 is a cross-sectional view of the electronic device housing 100 according to the second embodiment. The waterproof packing 6a has two main protrusions 7a and two auxiliary protrusions 7b. The two main protrusions 7a and the two auxiliary protrusions 7b are provided on the first surface 61 of the packing and the second surface 62 of the packing. The two main protrusions 7a are provided closer to the center 50a of the waterproof packing 6a than the two sub-projections 7b, and the two sub-projections 7b are located farther from the center 50a of the waterproof packing 6a than the two main protrusions 7a. It is provided in. In the present embodiment, the waterproof packing 6a has two main protrusions 7a and two sub-projections 7b, but the number of these is not limited, and the waterproof packing 6a has a plurality of main protrusions 7a and a plurality of sub-projections. It suffices to have 7b. The waterproof packing 6a may have at least two accessory protrusions 7b. Since the waterproof packing 6a has a plurality of main protrusions 7a and a plurality of sub-projections 7b, the redundancy of the waterproof performance can be enhanced. In the present embodiment, the two main protrusions 7a are provided at positions closer to the center of the waterproof packing 6a, and the two auxiliary protrusions 7b are located farther from the center 50a of the waterproof packing 6a than the two main protrusions 7a. The two auxiliary protrusions 7b are provided closer to the center 50a of the waterproof packing 6a, and the two main protrusions 7a are farther from the center 50a of the waterproof packing 6a than the two auxiliary protrusions 7b. It may be configured to be provided at a position.

Embodiment 3.
FIG. 13 is a diagram showing a front cover 1a according to the third embodiment. The front cover 1a includes a waterproof packing 6b and a plurality of screws 18. The waterproof packing 6b includes a fixing protrusion 15 and a light press-fitting protrusion 16. The fixing protrusion 15 and the light press-fitting protrusion 16 are provided on the waterproof packing 6b at regular intervals to fix the front cover 1a and the waterproof packing 6b. Details of these will be described later. The plurality of screws 18 are provided on the outer periphery of the second wall 10 to suppress the pressure generated from the waterproof packing 6b that cannot be suppressed by the front cover 1a.

FIG. 14 is an enlarged view of a part of the front cover 1a according to the third embodiment. FIG. 15 is a cross-sectional view of the front cover 1a in the XV-XV line of FIG. The first wall 9 of the front cover 1a is provided with a notch 17 that comes into contact with a part of the waterproof packing 6b. The fixing protrusion 15 is lightly press-fitted into the front cover 1a through the notch 17, so that the front cover 1a and the waterproof packing 6b can be fixed.

FIG. 16 is a cross-sectional view of the front cover 1a in the XVI-XVI line of FIG. The light press-fitting protrusion 16 is in contact with only the second wall 10 around the plurality of screws 18. The light press-fitting projection 16 is lightly press-fitted into the second wall 10 to prevent the waterproof packing 6b from falling off. Since the waterproof packing 6b has the light press-fitting protrusion 16, the entire waterproof packing 6b can be uniformly compressed. Further, since the waterproof packing 6b has the light press-fitting projection 16, it is possible to prevent the assembly property from being impaired.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1,1a Front cover, 2 Rear cover, 3 Opening, 4 Bottom, 6, 6a, 6b Waterproof packing, 7a Main protrusion, 7b Sub-projection, 8 Rear cover receiving surface, 9 First wall, 10 Second wall , 11 outer wall, 14 minute gap, 15 fixing protrusion, 16 light press-fitting protrusion, 17 notch, 18 screw, 41 receiving surface, 50, 50a center, 51 center line, 61 packing 1st surface, 62 packing 2nd surface , 63 packing third surface, 64 packing fourth surface, 91 first surface, 101 second surface, 100 electronic device housing, 200 grooves.

In order to solve the above-mentioned problems and achieve the object, the structure of the waterproof packing of the electronic device housing according to the present invention faces the bottom and the first wall and the first wall protruding vertically from the bottom. A first cover with a second wall, a waterproof packing installed in the groove formed by the bottom, the first wall, and the second wall, and an opening covered by the first cover. In the structure of the waterproof packing provided, the waterproof packing has a second cover formed with a receiving surface for crushing the waterproof packing with the opening covered by the first cover. It is characterized in that it is in contact with the bottom and separated from the second wall.

In order to solve the above-mentioned problems and achieve the object, the structure of the waterproof packing of the electronic device housing according to the present invention faces the bottom and the first wall and the first wall protruding vertically from the bottom. A first cover with a second wall, a waterproof packing installed in the groove formed by the bottom, the first wall, and the second wall, and an opening covered by the first cover. In the structure of the waterproof packing provided, the waterproof packing has a second cover formed with a receiving surface for crushing the waterproof packing with the opening covered by the first cover. It is in contact with the bottom and separated from the second wall , the first cover is provided with a plurality of screws provided on the outer periphery of the second wall, and the waterproof packing is the first surface of the packing which is in contact with the bottom. It has a second surface of the packing that contacts the second cover and a light press-fitting protrusion that contacts only the second wall around the plurality of screws, and the first surface of the packing and the second surface of the packing are one or more main surfaces. It is characterized by including a protrusion and one or more sub-protrusions lower than the main protrusion.

In order to solve the above-mentioned problems and achieve the object, the structure of the waterproof packing of the electronic device housing according to the present invention faces the bottom and the first wall and the first wall protruding vertically from the bottom. to the first and the cover, the bottom having a second wall, the first wall, and a waterproof installed in a groove that will be formed along the outer periphery of Rutotomoni formed first cover by a second wall A waterproof packing having a packing and a second cover provided with an opening covered by the first cover and having a receiving surface for crushing the waterproof packing with the opening covered by the first cover. In the structure of, the waterproof packing is in contact with the first wall and the bottom and is separated from the second wall, and the first cover is provided with a plurality of screws provided on the outer periphery of the second wall and is waterproof. The packing has a first surface of the packing that contacts the bottom, a second surface of the packing that contacts the second cover, and a light press-fitting protrusion that contacts only the second wall around the plurality of screws. The surface and the second surface of the packing include one or more main protrusions and one or more sub-projections lower than the main protrusions , and the first wall is provided on the inner circumference of the groove. second wall is characterized Rukoto provided on the outer periphery of the groove.

Claims (9)

A first cover comprising a bottom and a first wall and a second wall projecting vertically from the bottom.
A waterproof packing installed in the bottom, the first wall, and the groove formed by the second wall.
Waterproofing having an opening covered with the first cover, and a second cover having a receiving surface formed on the first cover to crush the waterproof packing in a state where the opening is covered. In the packing structure
The waterproof packing is
A structure of a waterproof packing of an electronic device housing, which is in contact with the first wall and the bottom portion and is separated from the second wall. The groove is formed along the outer circumference of the first cover.
The first wall is provided on the inner circumference of the groove.
The structure of the waterproof packing of the electronic device housing according to claim 1, wherein the second wall is provided on the outer periphery of the groove. The waterproof packing is
The first surface of the packing that comes into contact with the bottom and
It has a second surface of packing that comes into contact with the second cover.
The first surface of the packing and the second surface of the packing are
With one or more main protrusions,
With one or more sub-projections lower than the main projection,
The structure of the waterproof packing of the electronic device housing according to claim 1 or 2, wherein the waterproof packing is provided. The first surface of the packing and the second surface of the packing are
The structure of a waterproof packing for an electronic device housing according to claim 3, wherein the main protrusion is provided in the center, and the sub-projections are provided on both sides of the main protrusion. The waterproof packing is
The structure of the waterproof packing of the electronic device housing according to any one of claims 1 to 4, wherein the structure is symmetrical with a center line parallel to the bottom portion passing through the center of the waterproof packing. The one or more main protrusions
It is provided near the center of the waterproof packing and is provided.
The one or more accessory protrusions
The structure of the waterproof packing of the electronic device housing according to claim 3, wherein the waterproof packing is provided at a position farther from the center of the waterproof packing than the one or more main protrusions. The first wall is
It has a notch that comes into contact with a part of the waterproof packing,
The waterproof packing is
The structure of a waterproof packing for an electronic device housing according to any one of claims 1 to 6, further comprising a fixing portion for fixing the first cover via the notch. The first cover is
A plurality of screws provided on the outer circumference of the second wall are provided.
The waterproof packing is
The structure of a waterproof packing for an electronic device housing according to any one of claims 1 to 7, further comprising a light press-fitting projection that contacts only the second wall around the plurality of screws. A first cover comprising a bottom and a first wall and a second wall projecting vertically from the bottom.
A waterproof packing installed in the bottom, the first wall, and the groove formed by the second wall.
A second cover is provided with an opening covered by the first cover, and the first cover is formed with a receiving surface for crushing the waterproof packing while the opening is covered. ,
The waterproof packing is
An electronic device housing characterized in that it is in contact with the first wall and the bottom and is separated from the second wall.

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