JP6042835B2 - Waterproof structure and electronic device using the same - Google Patents

Description

  The present invention relates to a waterproof structure for an electronic device such as a portable device, and an electronic device using the waterproof structure.

  The mainstream of the waterproof structure of a case of a portable device having a battery such as a coin-type battery is a structure in which a board mounting area and a battery mounting area are connected. In portable devices, for example, there may be a case where a high-functional model has a waterproof structure for both the board mounting area and the battery mounting area, and a low-priced model requires a device specification that only the board mounting area has a waterproof structure. However, in this case, if the chassis is shared between the high-performance model and the low-cost model, the board mounting area and the battery mounting area are connected. Reaches the board mounting area, and both the board and the battery are damaged. Therefore, the apparatus specification using a common housing cannot be realized.

  On the other hand, Patent Document 1 discloses a structure in which a substrate mounting area and a battery mounting area are made independent and each has a waterproof structure.

JP 2004-68417 A

  In Patent Document 1, since the board mounting area and the battery mounting area are made independent and each has a waterproof structure, even if each area is flooded, water does not enter each other. However, in this case, the structure of the battery terminal that connects the battery and the substrate becomes a problem. That is, in Patent Document 1, the case and the battery terminal are integrally molded so that the battery terminal is embedded in the case.

  An example of a waterproof structure in which battery terminals are embedded in a case and integrally molded is shown in FIG. In FIG. 11, the substrate 105 on which the battery terminals 102 and 103 are mounted and the case 101 are integrally formed. Only the surfaces of the battery terminals 102 and 103 that are in contact with the battery are exposed to the outside of the case 101, and only the board mounting area 101x has a waterproof structure.

  However, a special molding technique is required to integrally mold the battery terminal with the case. Therefore, there has been a problem that the manufacturing cost is increased. Moreover, since the buried battery terminal cannot be replaced, there is a problem in the maintainability of the device.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a waterproof structure with good component maintainability at a low cost in a waterproof structure of an electronic device such as a portable device.

  The waterproof structure according to the present invention has a case having a first area and a second area, and the first area has a first waterproof means, and the first area and the second area. Are electrically connected by a conductive terminal, and the conductive terminal has a third waterproof means for maintaining waterproofing of the first area.

  The electronic device according to the present invention has a case having a first area and a second area, the first area has a first waterproof means, and the first area and the second area. Are electrically connected by a conductive terminal, and the conductive terminal has a waterproof structure having a third waterproof means for maintaining waterproofing of the first area.

  ADVANTAGE OF THE INVENTION According to this invention, in the waterproof structure of electronic devices, such as a portable apparatus, the waterproof structure with good component maintenance property can be provided at low cost.

It is a block diagram which shows the structure of the waterproof structure of the 1st Embodiment of this invention. It is an exploded view which shows the structure of the portable apparatus using the waterproof structure of the 2nd Embodiment of this invention. It is the front view and center sectional drawing of a portable apparatus using the waterproof structure of the 2nd Embodiment of this invention. It is the rear view which hidden the rear cover 7, the battery cover 10, and the lock knob 12 of the portable apparatus using the waterproof structure of the 2nd Embodiment of this invention. It is the front view which hidden the panel 6 of the portable apparatus using the waterproof structure of the 2nd Embodiment of this invention. It is a perspective view of case 1 of the portable apparatus using the waterproof structure of the 2nd Embodiment of this invention. It is an exploded view which shows the structure of the portable apparatus using the waterproof structure of the 3rd Embodiment of this invention. It is the front view and center sectional drawing of a portable apparatus using the waterproof structure of the 3rd Embodiment of this invention. It is the front view and center sectional drawing of the battery cover of the portable apparatus using the waterproof structure of the 4th Embodiment of this invention. It is an exploded view which shows the structure of the portable apparatus using the waterproof structure of the 5th Embodiment of this invention. It is the front view and center sectional drawing which show the waterproof structure which embed | buried the existing battery terminal.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the preferred embodiments described below are technically preferable for carrying out the present invention, but the scope of the invention is not limited to the following.
(First embodiment)
FIG. 1 is a block diagram showing the configuration of the waterproof structure according to the first embodiment of the present invention. The waterproof structure of the present embodiment has a case 1000 having a first area 1001 and a second area 1002, and the first area 1001 has a first waterproof means 1004. Further, the first area 1001 and the second area 1002 are electrically connected by a conductive terminal 1003. Further, the conductive terminal 1003 has third waterproof means 1006 for maintaining the waterproofness of the first area 1001.

  The second area 1002 has a second waterproof means 1005.

According to this embodiment, in a waterproof structure of an electronic device such as a portable device, it is possible to provide a waterproof structure with low cost and good component maintainability.
(Second Embodiment)
The structure of the second embodiment of the present invention will be described with reference to FIGS. FIG. 2 is an exploded view showing a configuration of a portable device using the waterproof structure of the present embodiment. FIG. 3 is a front view and a central sectional view of a portable device using the waterproof structure of the present embodiment. FIG. 4 is a rear view in which the rear cover 7, the battery cover 10, and the lock knob 12 of the portable device using the waterproof structure of the present embodiment are not displayed. FIG. 5 is a front view in which the panel 6 of the portable device using the waterproof structure of the present embodiment is not displayed. Furthermore, FIG. 6 is a perspective view of the case 1 of the portable device using the waterproof structure of the present embodiment. The waterproof structure of the present embodiment uses the waterproof structure of the first embodiment.

  On the circuit board mounting side of case 1, the room is divided into a board mounting area 1x (first area) and a battery mounting area 1y (second area) so that each can be waterproofed independently. The substrate mounting area 1x has a structure for preventing water from entering by attaching the rear cover 7 to the case 1 via the rear cover adhesive tape 71 (first waterproof means). The battery mounting area 1y has a structure in which the battery packing 11 is affixed to the case 1 or the battery cover 10, the battery cover 10 is fitted to the case 1 and the battery packing 11 is compressed to prevent water from entering (second second). Waterproof means). When the battery mounting area 1y has a non-waterproof structure, the battery packing 11 is deleted.

  Since the board mounting area 1x and the battery mounting area 1y are independent, only the board mounting area 1x can have a waterproof structure regardless of whether the battery mounting area 1y is waterproof or non-waterproof.

  The panel 6 attachment side of case 1 attaches battery terminals 2, 3, and 4, which are conductive terminals made of sheet metal, to case 1 with battery terminal adhesive tapes 21, 31, and 41. Further, the panel 6 is attached to the case 1 so as to cover the battery terminals 2, 3, 4. That is, the battery terminals 2, 3, 4 are fitted and fitted into the recesses in the shape of the battery terminals 2, 3, 4 provided in the case 1 by the battery terminal adhesive tapes 21, 31, 41. On the other hand, an adhesive tape is provided on the entire surface of the panel 6, and the panel 6 is attached to the surface of the case 1 in which the terminals 2, 3, and 4 are fitted. As described above, water can be prevented from entering the substrate mounting area 1x from the battery terminal holes 1a, 1b, 1c, 1d, 1e, and 1f (third waterproof means).

  The battery terminal holes 1d, 1e, and 1f pass from the gap between the case 1 and the panel 6 through the battery terminal holes 1a, 1b, and 1c from the battery mounting area 1y of the case 1 even when the battery mounting area 1y has a non-waterproof structure. The battery terminal adhesive tapes 21, 31, 41 surround the entire periphery of the battery terminal holes 1d, 1e, 1f so that water does not enter. Thereby, even when the battery mounting area 1y is either a waterproof structure or a non-waterproof structure, water can be reliably stopped around the battery terminal holes 1d, 1e, and 1f.

  The battery terminal spring portions 2 a, 2 b, 3 a, 4 a of the battery terminals 2, 3, 4 are in contact with the batteries 8, 9 through the battery terminal holes 1 a, 1 b, 1 c of the case 1. Further, the contact parts 51, 52, 53 mounted on the substrate 5 are inserted into the battery terminal holes 1d, 1e, 1f, so that the battery terminals 2, 3, 4 and the substrate 5 come into contact with each other. There is a concern that the battery terminal adhesive tapes 21, 31, 41 are peeled off from the case 1 by the spring reaction force due to these contacts. As a countermeasure, the battery terminal fitting claws 1g, 1h, 1i, 1j, 1k, and 1l of the case 1 are configured to be hooked on the battery terminals 2, 3, and 4.

  The battery terminal holes 1a, 1b, and 1c are provided with holes for passing the battery terminal spring portions 2a, 2b, 3a, and 4a and battery terminal fitting claws 1g, 1h, and 1i. It prevents making holes. Further, the battery terminal fitting claws 1j, 1k, and 1l are not formed as through holes, but are formed in a bag-like concave shape, thereby preventing new holes from being formed and minimizing the number of holes in the case 1. This eliminates the need for additional parts for closing the hole and narrows the route for water to enter, so that an inexpensive and reliable waterproof structure can be realized.

  Further, after the batteries 8 and 9 are mounted in the battery mounting area 1y, the battery cover 10 having the lock knob 12 is fitted into the case 1.

  In the sub-assay of case 1, battery terminals 2, 3, and 4 are attached to case 1 via battery terminal adhesive tapes 21, 31, and 41, and panel 6 is attached to case 1 from above battery terminals 2, 3, and 4. It consists of pasting. A substrate 5 having contact parts 51, 52, 53 is mounted on the substrate mounting area 1x of the sub-assay of case 1, and a battery packing 11 is attached to the battery mounting area 1y. A rear cover 7 is attached to the case 1 via a rear cover adhesive tape 71 from above the substrate 5. Further, the case 1 is provided with batteries 8 and 9 detachable by the user and a battery cover 10 having a lock knob 12. The battery packing 11 is not necessary when the battery mounting area 1y is not waterproofed.

  Battery panel holes 1a, 1b, 1c, 1d, 1e, 1f, LED light guide holes 1m, button holes 1n, 1o, rear cover fitting holes 1p, 1q, 1r, 1s There are battery cover fitting holes 1t, 1u, 1v. The panel 6 is affixed to the case 1 so as to close all these holes. Since the adhesive tape is provided on the entire surface of the panel 6, it is possible to prevent water from entering the substrate mounting area 1 x from the panel 6 attachment surface side of the case 1.

  Since an adhesive tape is used for the waterproof structure of the battery terminals 2, 3, and 4, it is very inexpensive compared to a waterproof structure using integral molding. In terms of maintainability, the battery terminals 2, 3, 4 can be exchanged, and the substrate inside the housing can be reused, which is superior to an integrally molded structure. The same effect can be obtained even when rubber is used instead of the adhesive tape. However, it is easier to realize an inexpensive and thin device by using an adhesive tape.

That is, according to this embodiment, a waterproof structure with good component maintainability can be provided at a low cost in the waterproof structure of an electronic device such as a portable device.
(Third embodiment)
The structure of the 3rd Embodiment of this invention is demonstrated using FIG. 7 and FIG. FIG. 7 is an exploded view showing a configuration of a portable device using the waterproof structure of the present embodiment. FIG. 8 is a front view and a central sectional view of a portable device using the waterproof structure of the present embodiment. Each part of FIG. 7 and FIG. 8 is based on 2nd Embodiment.

  In the present embodiment, the rear cover adhesive tape 71 of the second embodiment is deleted, and the case 201 is provided with a concave shape 201a. After the rear cover packing 202 is inserted into the concave shape 201a, the rear cover 203 is fixed to the case 201 by claw fitting, so that the rear cover packing 202 is crushed and the board mounting area 201x is made waterproof (first waterproof means). Compared with the second embodiment, the unit price of the product increases by changing the adhesive tape to packing, but there is an advantage that the case 201 and the rear cover 203 can be easily disassembled after assembly, and the maintainability is improved.

That is, according to this embodiment, a waterproof structure with good component maintainability can be provided at a low cost in the waterproof structure of an electronic device such as a portable device.
(Fourth embodiment)
The structure of the 4th Embodiment of this invention is demonstrated using FIG. FIG. 9 is a front view and a central sectional view of a battery cover of a portable device using the waterproof structure of the present embodiment. Each part of Drawing 9 is based on a 2nd embodiment.

  In the present embodiment, the battery packing 11 of the second embodiment is deleted, and the battery cover packing 301a is integrally formed with the battery cover 301 (second waterproof means). Compared with the second embodiment, the unit price of the product is increased by adding the integral molding, but there is an advantage that the number of assembling steps for attaching the battery packing is reduced and the assembling variation is reduced.

That is, according to this embodiment, a waterproof structure with good component maintainability can be provided at a low cost in the waterproof structure of an electronic device such as a portable device.
(Fifth embodiment)
The structure of the 5th Embodiment of this invention is demonstrated using FIG. FIG. 10 is an exploded view showing a configuration of a portable device using the waterproof structure of the present embodiment. Each part of Drawing 10 is based on a 2nd embodiment.

  In the present embodiment, the contact terminals 51, 52, 53 provided on the substrate 5 of the second embodiment are deleted, and the shape of the battery terminals 2, 3, 4 is changed to the shape of the battery terminals 402, 403, 404. ing. That is, the substrate spring portions 402a, 403a, and 404a are provided at the center of the surface of the battery terminals 402, 403, and 404 to be attached to the case 401. These are brought into contact with the substrate 405 through the substrate terminal holes 401a, 401b, 401c of the case 401.

  Although new holes are formed in the battery terminals 402, 403, and 404, since the holes are blocked by the panel 406, it is possible to prevent water from entering. On the other hand, the unit price of the product can be reduced as compared with the second embodiment because the contact terminals of the substrate are deleted.

  That is, according to this embodiment, a waterproof structure with good component maintainability can be provided at a low cost in the waterproof structure of an electronic device such as a portable device.

  The present invention is not limited to the above embodiment, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention.

  Moreover, although a part or all of said embodiment may be described also as the following additional remarks, it is not restricted to the following.

Appendix (Appendix 1)
A case having a first area and a second area, wherein the first area has a first waterproof means, and the first area and the second area are electrically connected by a conductive terminal; A waterproof structure in which the conductive terminal has a third waterproof means for maintaining the waterproof of the first area.
(Appendix 2)
The waterproof structure according to appendix 1, wherein the second area has a second waterproof means.
(Appendix 3)
The waterproof structure according to appendix 1 or 2, wherein the first area includes a circuit board, the second area includes a battery, and the circuit board and the battery are electrically connected by the conductive terminal. .
(Appendix 4)
4. The waterproof structure according to claim 1, wherein the conductive terminal is a sheet metal.
(Appendix 5)
5. The waterproof structure according to claim 1, wherein the conductive terminal is fixed to the case by a fitting claw.
(Appendix 6)
6. The waterproof structure according to one of appendices 1 to 5, wherein the first waterproof means is an adhesive tape or packing.
(Appendix 7)
7. The waterproof structure according to claim 1, wherein the second waterproof means is packing.
(Appendix 8)
8. The waterproof structure according to one of appendices 1 to 7, wherein the third waterproof means is an adhesive tape.
(Supplementary note 9) The waterproof structure according to one of supplementary notes 2 to 8, wherein the second area has a cover, and the second waterproof means is a packing provided integrally with the cover.
(Additional remark 10) Additional remark The waterproof structure of Additional remark 3 or 4 with which the connection of the said circuit board and the said battery is connected from the spring provided in the said conductive terminal.
(Appendix 11)
11. An electronic device having the waterproof structure according to one of appendices 1 to 10.
(Appendix 12)
The electronic device according to appendix 11, wherein the electronic device is a portable device.

1000 Case 1001 First area 1002 Second area 1003 Conductive terminal 1004 First waterproof means 1005 Second waterproof means 1006 Third waterproof means 1, 101, 201 Case 1x, 101x, 201x Substrate mounting area 1y Battery mounting Area 1a, 1b, 1c, 1d, 1e, 1f Battery terminal hole 1g, 1h, 1i, 1j, 1k, 1l Battery terminal fitting claw 1m LED light guide hole 1n, 1o Button hole 1p, 1q, 1r, 1s Rear cover fitting Joint hole 1t, 1u, 1v Battery cover fitting hole 2a, 2b, 3a, 4a Battery terminal spring part 2, 3, 4, 102, 103, 402, 403, 404 Battery terminal 21, 31, 41 Battery terminal adhesive tape 5 , 105, 405 Substrate 51, 52, 53 Contact component 6 Panel 7, 203 Rear cover 71 Rear cover adhesive tape Flop 8,9 battery 9,218 battery cover 11 cell packing 12 lock knob 202 rear cover gasket 301a battery cover gasket 401a, 401b, 401c board terminal holes 402a, 403b, 404c board spring portion

Claims (7)

A case having a first area and a second area, wherein the first area has a first waterproof means, and the first area and the second area are the same surface of the case; A third metal sheet, which is a sheet metal and is electrically connected by a conductive terminal fixed to the case by a fitting claw , wherein the conductive terminal is an adhesive tape that maintains the waterproofness of the first area; A waterproof structure having waterproof means. The waterproof structure according to claim 1, wherein the second area has a second waterproof means. The waterproof structure according to claim 2, wherein the second waterproof means is packing. 4. The circuit board according to claim 1, wherein the first area is mounted with a circuit board, the second area is mounted with a battery, and the circuit board and the battery are electrically connected by the conductive terminal. The waterproof structure according to Item 1. The waterproof structure according to claim 1, wherein the first waterproof means is an adhesive tape or a packing. An electronic device having the waterproof structure according to claim 1. The electronic device according to claim 6, wherein the electronic device is a portable device.

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