JP5019231B2 - Waterproof structure and electronic equipment - Google Patents

Description

  The present invention relates to a waterproof structure between cases constituting a casing, and an electronic apparatus including a casing with the waterproof structure.

There is a technology that combines a plurality of cases, sandwiching packing between the cases, and fitting a U-shaped stopper such as stainless steel in a groove provided on the outer peripheral surface to prevent water leakage. (See Patent Document 1).
JP-A-7-51673

According to Patent Document 1, it is fitted with a U-shaped stopper in cross section, but if the stopper is exposed, it becomes a design restriction.
Therefore, in order to improve the degree of freedom in design, a cover that is an external part covering the stopper is required as a separate part, and the attachment must be performed in a separate process.

  An object of the present invention is to easily assemble a housing with a simple structure while improving the degree of freedom of design in a waterproof structure between cases constituting the housing.

  In order to solve the above problems, the invention described in claim 1 includes a first case, a second case, a waterproof member between the first case and the second case, and the first case. A first cover that covers the second case, and a second cover that covers the second case, wherein the first case and the second case include the first case and the second case. It is characterized by a waterproof structure in which the waterproof member is fixed in between.

  Invention of Claim 2 is the waterproof structure of Claim 1, Comprising: The clamping part for pinching | interposing the said 1st case, the said 2nd case, and the said waterproof member in the said 1st cover is provided. It is provided.

  Invention of Claim 3 is the waterproof structure of Claim 1 or 2, Comprising: The engaging part which mutually engages in the said 2nd case and the said 1st cover was provided, It is characterized by the above-mentioned. To do.

  The invention according to claim 4 is the waterproof structure according to claim 2 or 3, characterized in that a reinforcing member is provided inside the sandwiched portion.

  A fifth aspect of the present invention is the waterproof structure according to any one of the second to fourth aspects, wherein the pinching portion is easily hollowed outside the pinching portion of the first cover. A portion is formed.

  Invention of Claim 6 is the waterproof structure as described in any one of Claim 2-5, Comprising: The slit for making the said clamping part easy to bend in the corner part of a said 1st cover. It is formed.

  The invention according to claim 7 is the waterproof structure according to any one of claims 1 to 6, wherein the second cover is engaged and fixed to the second case. It is characterized by.

  The invention according to claim 8 is the waterproof structure according to any one of claims 1 to 7, wherein the second cover is fixed to the second case by screwing. It is characterized by.

  The invention according to claim 9 is the waterproof structure according to any one of claims 1 to 8, wherein the portion between the first case and the second case is not sandwiched, The first case, the second case, the first cover, and the second cover are sandwiched by different members to be waterproofed.

  A tenth aspect of the present invention is characterized by an electronic device including the casing having the waterproof structure according to any one of the first to ninth aspects.

  According to the present invention, it is possible to easily assemble a waterproof casing with a simple structure while improving the degree of freedom of design.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a waterproof music player as a configuration of an embodiment of an electronic apparatus to which the present invention is applied. FIG. 2 shows an exploded state of the casing. 1 is a first case, 2 is a second case, 3 is a first cover, 4 is a second cover, 5 is a display device, 6 is a circuit board, 7 is an operation key, 8 is a waterproof connector, and 9 is an end cap.

  In the illustrated example, the casing of the waterproof music player is composed of a first case 1 and a second case 2 that are paired up and down, and a first cover 3 that covers the first case 1 and a second case 2. And a second cover 4 that covers the case 2. The display device 5 and the circuit board 6 are incorporated between the first case 1 and the second case 2, and the operation keys 7 provided on the first case 1 are exposed on the first cover 3. is doing.

  As described above, the waterproof member 10 (see FIG. 3) is provided between the first case 1 and the second case 2. The first cover 3 and the second cover 4 have a waterproof structure that fixes the first case 1 and the second case 2 with the waterproof member 10 sandwiched therebetween.

  Moreover, the waterproof connector 8 is provided in the longitudinal direction one end part of the 1st case 1 and the 2nd case 2, The housing | casing edge part by this waterproof connector 8 side is a part in which the waterproof member 10 does not exist, The first case 1, the second case 2, the first cover 3, and the second cover 4 have a waterproof structure sandwiched by separate end caps 9.

(Embodiment 1)
FIG. 3 shows the case waterproof structure portion of the first embodiment. A waterproof member 10 such as rubber packing is integrally formed along the periphery of the lower surface of the first case 1. In addition, a protruding piece 21 that is pressed against the waterproof member 10 from below is integrally formed around the second case 2. Note that a display window 11 corresponding to the screen of the display device 5 is integrally attached to the first case 1 via a waterproof frame 12.

  Then, on the inner peripheral surface of the first cover 3 overlaid on the first case 1, the periphery of the first case 1 and the protruding pieces 21 around the second case 2 are interposed between the waterproof member 10. A pinching portion 31 is formed in a groove shape that is fixed in a state where the pin is pinched. A downward extending piece 32 is formed along the inner surface of the lower periphery of the first cover 3. Further, an upwardly extending piece 42 is formed on the peripheral upper surface of the second cover 4 along the outer surface thereof.

  For the assembly of the housing, first, the display device 5, the circuit board 6, and the like are assembled inside the first case 1 and the second case 2, and the operation key 7 is overlaid on the first case 1. The first cover 3 is overlaid on the first case 1, and the second cover 4 is overlaid under the second case 2. Then, the periphery of the first case 1 and the protruding piece 21 around the second case 2 are fitted into the sandwiching portion 31 inside the first cover 3 in a state where the waterproof member 10 is sandwiched and compressed therebetween. Include.

  At this time, since the periphery of the first cover 3 is movable in the lateral direction due to the elasticity of the molding resin, as indicated by an arrow in FIG. 3, the periphery of the first case 1 and the second case 2. The fitting into the sandwiching portion 31 with the surrounding protruding piece 21 is facilitated.

  Then, an upwardly extending piece 42 along the outer surface of the peripheral upper surface of the second cover 4 is on the outer side with respect to the downwardly extending piece 32 along the inner surface of the lower periphery of the first cover 3. Therefore, the sandwiching portion 31 does not open, and the protrusion 21 around the first case 1 and the protruding piece 21 around the second case 2 is prevented from coming off.

  FIG. 4 shows a corner portion of the casing. On the outer surface of the corner portion of the first cover 3, the protruding pieces 21 around the first case 1 and the second case 2 are fitted into the sandwiching portion 31. A pair of slits 33 are formed on the left and right sides of the corner portion in order to reduce resistance at the time and make the sandwiched portion 31 easier to bend.

  Moreover, the 2nd cover 4 is fixed to the lower surface of the 2nd case 2 with four screws, as shown in FIG.1 and FIG.2.

  Further, as described above, the waterproof connector 8 is provided in one end of the first case 1 and the second case 2 in the longitudinal direction, and the end portion of the housing where the sandwiching portion does not exist is provided as described above. The first case 1, the second case 2, the first cover 3, and the second cover 4 are sandwiched between end caps 9. As shown in FIGS. 1 and 2, the end cap 9 has a waterproof structure that is fixed to the end surface of the second case 2 with two screws.

  As described above, according to the case waterproof structure of the embodiment, the first cover 3 and the second cover 4 sandwich the waterproof case 10 between the first case 1 and the second case 2. In other words, the projecting pieces 21 around the first case 1 and the second case 2 are compressed by sandwiching the waterproof member 10 therebetween and compressing the projecting pieces 21 around the first case 1. Since it is fitted, the waterproof casing can be easily assembled with a simple structure while improving the degree of freedom of design.

In the above embodiment, one end of the housing is sandwiched by the end cap 9 and has a waterproof structure. However, the entire periphery of the housing may be a waterproof structure by compressing and fixing the waterproof member 10.
In the embodiment, the waterproof member 10 is integrally formed with the first case 1. However, the waterproof member 10 may be integrally formed with the second case 2, or the waterproof member 10 may be provided separately. good.

(Embodiment 2)
FIG. 5 shows a case waterproof structure portion of the second embodiment. As in FIG. 3 of the first embodiment, 1 is a first case, 2 is a second case, 3 is a first cover, Is a second cover, 21 is a protruding piece, 31 is a sandwiching part, 32 is an extending piece, 42 is an extending piece, 23 is an engaging recess, and 43 is an engaging protrusion.

  That is, in the second embodiment, as shown in the figure, in addition to the configuration similar to that of FIG. While the projection 23 is integrally formed, an engagement recess 43 corresponding to the engagement projection 23 on the outer surface of the second case 2 is formed on the inner surface of the second cover 4. The engagement protrusion 23 has a downwardly inclined surface 23 a that performs a guide function when engaged with the engagement recess 43. The engaging recess 43 has an inclined surface 43 a corresponding to the inclined surface 23 a of the engaging projection 23.

  When the second cover 4 is mounted on the second case 2, the inner surface of the second cover 4 is formed by the downwardly inclined surface 23 a of the engaging projection 23 on the outer surface of the second case 2. The engagement protrusion 23 and the engagement recess 43 are engaged with each other by being guided. Accordingly, the second case 2 can be prevented from floating upward, the second cover 4 can be prevented from coming off, and the sandwiched portion 31 of the first cover 3 can be prevented from opening.

(Embodiment 3)
FIG. 6 shows a case waterproof structure part of the third embodiment. Like the second embodiment (FIG. 5), 1 is a first case, 2 is a second case, 3 is a first cover, 4 is a second cover, 21 is a projecting piece, 23 is an engaging recess, 23a is an inclined surface, 31 is a clamping part, 32 is an extending piece, 42 is an extending piece, 43 is an engaging protrusion, 43a is inclined 21a is an inclined surface and 31a is an inclined surface.

  That is, in the third embodiment, as shown in the figure, in addition to the configuration similar to that of the second embodiment (FIG. 5) described above, the lower surface of the sandwiching portion 31 of the first cover 3 is formed on the inclined surface 31a having a lower back side. Thus, the lower surface of the protruding piece 21 of the second case 2 is formed on an inclined surface 21 a corresponding to the inclined surface 31 a of the sandwiching portion 31.

  Accordingly, in the sandwiching portion 31 of the first cover 3, the sandwiching portion 31 is engaged with the inclined surface 31a of the lower case 2 so that the inclined surface 21a of the protruding piece 21 of the second case 2 overlaps and bites into the sandwiching portion 31. It is possible to prevent the protruding piece 21 from coming off.

(Embodiment 4)
FIG. 7 shows a case waterproof structure portion of the fourth embodiment. Like the second embodiment (FIG. 5), 1 is a first case, 2 is a second case, 3 is a first cover, 4 is a second cover, 21 is a projecting piece, 23 is an engaging recess, 23a is an inclined surface, 31 is a clamping part, 32 is an extending piece, 42 is an extending piece, 43 is an engaging protrusion, 43a is inclined 24 is an engagement protrusion, and 34 is an engagement hole.

  That is, in the fourth embodiment, as shown in the figure, in addition to the configuration similar to that of the second embodiment (FIG. 5), an engagement hole 34 penetrating the inside and outside is provided below the sandwiching portion 31 of the first cover 3. The engaging protrusion 24 corresponding to the position of the engaging hole 34 is formed below the protruding piece 21 of the second case 2. The engaging projection 24 has a hook-like claw portion 24a at the tip, and a claw portion 34a that prevents the claw portion 24a from coming off is formed on the front side of the engaging hole 34.

  When the above first cover 3 is mounted, the projecting pieces 21 around the first case 1 and the second case 2 are compressed with the waterproof member 10 sandwiched therebetween and compressed. At the same time, the engaging projection 24 is inserted into the engaging hole 34. As a result, the claw portion 24a at the tip of the engagement protrusion 24 is engaged with the claw portion 34a on the front side of the engagement hole 34.

  Therefore, the claw portion 34a at the front end of the engagement projection 24 can be prevented from coming off by the claw portion 34a on the front side of the engagement hole 34, and the projection piece 21 can be prevented from coming off from the sandwiching portion 31.

(Embodiment 5)
FIG. 8 shows a waterproof case for a housing of the fifth embodiment. Like the second embodiment (FIG. 5) described above, 1 is a first case, 2 is a second case, 3 is a first cover, 4 is a second cover, 21 is a projecting piece, 23 is an engaging recess, 23a is an inclined surface, 31 is a clamping part, 32 is an extending piece, 42 is an extending piece, 43 is an engaging protrusion, 43a is inclined 35 is a reinforcing member.

  That is, in the fifth embodiment, as shown in the drawing, in addition to the same configuration as that of the second embodiment (FIG. 5), the sandwiching portion 31 of the first cover 3 is made of metal or the like for the purpose of improving its rigidity and strength. Incorporates a U-shaped reinforcing member 35 having a cross-section.

  Accordingly, the reinforcing member 35 incorporated in the sandwiching portion 31 inside the first cover 3 is in a state where the protruding pieces 21 around the first case 1 and the second case 2 are compressed with the waterproof member 10 sandwiched therebetween. Can be fitted and held with improved rigidity and strength

FIG. 9 shows the basic shape. Assemble using the material elasticity of the cover.

(Modification)
FIG. 10 shows a modification of FIG. 9, and as shown in the figure, a lightening portion 36 is integrally formed on the outside of the sandwiching portion 31 at equal intervals or the like.

  FIG. 11 also shows another modified example. As shown in the drawing, a drain hole 38 is formed outside the sandwiching portion 31 so as to penetrate the lightening portion 36 and the outside. In this way, the drain hole 38 may be provided in the meat removal portion 36.

  FIG. 12 shows a modification of the case corner portion. In the corner portion of the first cover 3, the slit portion 33 is formed in the same manner as in FIG. The sandwiching portion 31 and the extending piece 32 are removed. As described above, the sandwiching portion 31 and the extending piece 32 may be deleted from the corner portion of the first cover 3.

(Other variations)
In the above embodiment, the waterproof music player is described. However, the present invention is not limited to this, and a waterproof structure such as a mobile phone, a camera, a PDA, a notebook computer, a wearable personal computer, a calculator, and an electronic dictionary. It can be used for all electronic devices equipped with.
Further, the shape of the sandwiching portion, the engaging portion, the reinforcing member, the slit and the like are arbitrary, and it is needless to say that the specific detailed structure and the like can be appropriately changed.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of one Embodiment of the electronic device to which this invention is applied is shown, the perspective view (a) which looked at the waterproof music player from the front side, and the perspective view (b) seen from the back side. It is a disassembled perspective view of the housing | casing of FIG. It is sectional drawing which expanded and showed the housing | casing waterproofing structure part of Embodiment 1. FIG. It is the enlarged view which showed the housing | casing corner part of FIG. It is sectional drawing which shows the housing | casing waterproofing structure part of Embodiment 2. FIG. It is sectional drawing which shows the housing | casing waterproofing structure part of Embodiment 3. FIG. It is sectional drawing which shows the housing | casing waterproofing structure part of Embodiment 4. It is sectional drawing which shows the housing | casing waterproofing structure part of Embodiment 5. FIG. It is a perspective view which shows the hollow part structure of the clamping part outer side of a 1st cover. It is a perspective view which similarly shows the modification of a hollow part structure. It is a perspective view which similarly shows the other modification of a hollow part structure. It is a perspective view which shows the modification of a housing | casing corner part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st case 2 2nd case 3 1st cover 4 2nd cover 10 Waterproof member 11 Display window 12 Waterproof frame 21 Projection piece 21a Engagement part 23 Engagement part 24 Engagement part 31 Clamping part 31a Engagement Part 32 extending piece 33 slit 34 engaging part 35 reinforcing member 36 hollow part 38 drain hole 42 extending piece 43 engaging part

Claims (10)

A first case; a second case; a waterproof member between the first case and the second case; a first cover covering the first case; and a second covering the second case. And a cover,
A waterproof structure characterized by fixing the first case and the second case with the waterproof member sandwiched between the first cover and the second cover.   The waterproof structure according to claim 1, wherein a sandwiching portion for sandwiching the first case, the second case, and the waterproof member is provided in the first cover.   The waterproof structure according to claim 1, wherein the second case and the first cover are provided with engaging portions that engage with each other.   The waterproof structure according to claim 2, wherein a reinforcing member is provided inside the sandwiched portion.   The waterproof structure according to any one of claims 2 to 4, wherein a hollow portion that facilitates bending of the sandwiched portion is formed outside the sandwiched portion of the first cover.   The waterproof structure according to any one of claims 2 to 5, wherein a slit for facilitating bending of the sandwiched portion is formed at a corner portion of the first cover.   The waterproof structure according to any one of claims 1 to 6, wherein the second cover is engaged and fixed to the second case.   The waterproof structure according to any one of claims 1 to 7, wherein the second cover is fixed to the second case by screwing.   In a portion where the first case and the second case are not sandwiched, the first case, the second case, the first cover, and the second cover are sandwiched by separate members. The waterproof structure according to any one of claims 1 to 8, wherein the waterproof structure is waterproof.   An electronic apparatus comprising the casing having the waterproof structure according to claim 1.

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