JP6469425B2 - Electronics - Google Patents

Description

  The present invention relates to an electronic device having a battery inside a housing.

  In recent years, a so-called pouch-type battery, for example, a battery made of a thin plate-like lithium ion battery has been used particularly in portable terminals such as smartphones. This pouch-type battery is thin and lightweight due to gelation of the electrolyte by the polymer. In this pouch-type battery, for example, the exterior is made of a member having low strength such as an aluminum laminate film. Such a pouch-type battery is often adhered inside the apparatus with a double-sided tape or the like.

  Accordingly, it is known to provide a battery removal sheet in order to facilitate peeling of the battery to be bonded during recycling (see, for example, Patent Document 1).

  On the other hand, as disclosed in Patent Document 2, a battery is encased in a cover part bonded to a case, and a fastener provided on the cover part is opened to take out the battery.

  Further, as disclosed in Patent Document 3, a display device is known in which a plurality of double-sided adhesive tapes are densely arranged up to the end of a chassis or display panel configured to cover the entire back surface of the display panel. Each of the plurality of double-sided pressure-sensitive adhesive tapes includes a polymer foam layer or a polymer film layer, and the adhesive force with respect to a tension of about 0 degrees between the display panel and the double-sided pressure-sensitive adhesive tape and the abbreviation between the chassis and the double-sided pressure-sensitive adhesive tape. A base material having a shear adhesive strength of 60 N / cm 2 or less expressed as a sum of the adhesive strength with respect to 0-degree tension is used.

  Further, as in Patent Document 4, a heat conductive sheet is sandwiched between the image display panel and the support plate, and sufficient adhesion is performed to hold the display panel on the surface of the support plate not occupied by the heat conductive sheet. There is known an image display device to which at least one adhesive tape having a force and capable of being peeled off from a support plate by pulling an end portion is attached.

JP 2013-182767 A JP 2013-89595 A Japanese Patent No. 4478347 JP 2004-69766 A

  However, since the thing of patent document 1 presupposes decomposition | disassembly disposal, even if it uses a battery removal sheet, a bending stress is added to a battery when removing a battery. For this reason, there is a problem that the pouch-type battery is deformed and cannot be reused.

  On the other hand, in the thing of patent document 2, a battery tends to move within a flexible cover part, and the fixing performance of a large mass battery is low.

  Furthermore, when the adhesive tape is densely arranged as in Patent Document 3, there is a problem that other parts cannot be arranged in the pulling direction of the adhesive tape, and an excessive load is applied to the battery in the operation of removing all the adhesive tape.

  Moreover, the thing of patent document 4 is aimed at the decomposition | disassembly at the time of recycling, and reuse of each component is not considered.

  The present invention has been made in view of the above points, and an object of the present invention is to make it possible to securely fix the battery and to easily remove the battery without causing deformation.

  In order to achieve the above object, in the present invention, the battery is fixed by a stretch-peeling adhesive tape that can be peeled by stretching.

Specifically, in the present invention, on the premise of an electronic device having a battery inside the housing,
A battery mounting portion that is detachable from the housing and attaches the battery;
An adhesive member for removably attaching the battery to the battery mounting portion;
The said adhesive member is provided with the edge part which does not have adhesiveness, and it is comprised so that peeling is possible by pulling in the direction which extends this edge part.

  According to the above configuration, when removing the battery, first, the battery mounting portion together with the battery is removed from the housing, and then the end of the adhesive member is pulled. Therefore, the battery can be easily detached from the battery mounting portion. At this time, the battery itself does not have to be pulled and bending stress can be prevented from being applied to the battery, and even a battery that is easily deformed, such as a pouch battery, is not easily deformed. In addition, since the battery is attached to the casing by the adhesive member via the battery attachment portion, the fixing is extremely easy and the fixing performance is easily secured.

  As described above, according to the present invention, since the battery is attached by an adhesive member that can be peeled off when the end is pulled to the battery mounting portion that can be attached to and detached from the housing, the battery can be securely fixed, By pulling the adhesive member so that no load is applied to the battery, the battery can be easily removed without deforming the battery.

It is a disassembled perspective view which shows a mode that a rigid board | substrate is removed from a front side cabinet, is extended, and a peeling adhesive tape is pulled. The smart phone which concerns on embodiment of this invention is shown, (a) is the perspective view seen from the front side, (b) is the perspective view seen from the back side. It is a disassembled perspective view of a smart phone. It is a perspective view which shows the front side cabinet to which the battery was fixed, and its periphery. It is the perspective view which shows a mode that the stretch peeling adhesive tape which concerns on Embodiment 2 was affixed on the battery, (a) is the perspective view seen from the back side, (b) is the perspective view seen from the front side. It is a perspective view which shows a mode that a battery is affixed on the battery holder of the smart phone which concerns on Embodiment 3, and it attaches to a front side cabinet.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  2 and 3 show a smartphone 1 as an electronic apparatus according to an embodiment of the present invention. The smartphone 1 includes a display unit 2 having a cover panel 2a and a display panel 2b, and a cover that covers the display unit 2. And a front cabinet 3. The front-side cabinet 3 is formed by insert-molding a rectangular plate-shaped sheet metal 3a. The cover panel 2a may be integrated with the touch panel, or may be composed of only a glass panel or an acrylic panel. The back side of the front side cabinet 3 is covered with a back side cabinet 4. The rear cabinet 4 is covered with a rear cover 5. Between the front side cabinet 3 and the back side cabinet 4, a battery 6 made of a rectangular plate-shaped pouch-type rechargeable battery and a rectangular plate-shaped rigid substrate 7 are accommodated. The rigid substrate 7 uses a non-flexible base material and has appropriate rigidity.

  The pouch-type battery 6 of the present embodiment is made of a low-strength member such as an aluminum laminate film in which the electrolyte is gelled by, for example, a crosslinked polymer. This low strength exterior portion is affixed to the rigid substrate 7 with a stretch release adhesive tape 10 for fixing the battery 6. Specifically, a pair of stretch release adhesive tapes 10 are provided, for example, arranged at both sides in the width direction of the battery 6 and spaced from each other, and attached to the flat surface 7 a on the back surface of the rigid substrate 7.

  The stretch peeling adhesive tape 10 is a long and thin tape-like double-sided tape having a constant width, and has a stretch portion 10a having no adhesiveness at one end thereof. It is comprised so that adhesive force may fall by pulling (for example, refer patent 3399951). If it is a strip with a constant width, it is difficult to tear when stretched. The stretch-release adhesive tape 10 improves the stability of the battery 6 when the length of the stretch-release adhesive tape 10 is less than the length equivalent to the entire length of the battery 6 by the dimensional tolerance and sticking variation of the stretch-release adhesive tape 10 itself. This is advantageous. This is particularly advantageous for a force that causes the battery 6 to rotate on the flat surface 7a. Further, the stretch release adhesive tape 10 has a band shape with a constant width, which is advantageous in that the load applied when pulling is made constant and shearing stress or the like is applied during stretching so that it is not broken. . The width dimension is determined by the adhesive strength of the tape and the mass of the battery. For example, what is necessary is just to make it the product of the adhesive force per unit area, the area of an adhesion part, and a safety factor become larger than the gravity of a battery.

  Next, a procedure for attaching the battery 6 of the smartphone 1 according to this embodiment will be described.

  First, as shown in FIG. 3, a rigid substrate 7 is attached to the back surface of the front-side cabinet 3 in which the display unit 2 is accommodated with screws, nails, and the like. The rigid substrate 7 is positioned by a rib or the like of the side wall 3b.

  Next, the stretch release adhesive tape 10 is attached to the flat surface 7a of the rigid substrate 7 in the vicinity of the side wall 3b.

  Next, the battery 6 is pressed against the peeling adhesive tape 10 while being positioned by the rib of the side wall 3b or the like in a state where the extended portion 10a is raised. Although not particularly illustrated, when the width of the rigid substrate 7 and the width of the battery 6 are substantially equal, the positioning rib may also be used as the positioning rib of the rigid substrate 7.

  Then, the back side cabinet 4 and the rear cover 5 are assembled.

  Next, a procedure for removing the battery 6 of the smartphone 1 according to this embodiment will be described.

  First, as shown in FIG. 3, the rear cover 5, the back side cabinet 4, and the like are sequentially removed, and the battery 6 is exposed as shown in FIG. 4. In this state, it is difficult to pull the stretched portion 10a of the stretch release adhesive tape 10, and if it is pulled forcibly, bending stress is applied to the battery 6, or the tape breaks and the tape cannot be pulled.

  Therefore, the rigid board 7 is removed from the front cabinet 3 as shown in FIG.

  Next, the stretched portion 10a of the stretched release adhesive tape 10 is pulled in the direction indicated by the two-dot chain line arrow in FIG. At this time, since the rigid substrate 7 has already been removed from the front-side cabinet 3, the boss 3c is not obstructed and the peeling adhesive tape 10 is easily pulled along its longitudinal direction, and a load such as bending stress is applied to the battery 6. It is hard to join and the tape is hard to cut. The rigid substrate 7 has a relatively high rigidity and can withstand the tensile force of the stretch-release adhesive tape 10. The stretch release adhesive tape 10 is stretched from the battery 6 and the rigid substrate 7 because the adhesive force gradually decreases by being pulled from the state of being in close contact with the back surface of the rigid substrate 7 and the front surface of the battery 6 at the time of use. The release adhesive tape 10 can be removed.

  Thus, in this embodiment, after removing the rigid board 7 from the front-side cabinet 3, when the battery 6 is removed from the rigid board 7, the stretched portion 10a of the stretch release adhesive tape 10 is not subjected to a load on the battery. When pulled, the battery 6 is easily detached from the rigid substrate 7 without being deformed. The pulling direction may be the longitudinal direction of the stretched release adhesive tape 10 or may be inclined by about 35 degrees with respect to the longitudinal direction as long as the battery is not loaded. At this time, since it is not necessary to pull the battery 6 itself, even if the battery 6 is easily deformed like a pouch-type battery, it is difficult to hurt. Moreover, since the battery 6 is affixed to the rigid board 7 attached to the front side cabinet 3 by the stretch release adhesive tape 10 at the time of use, the fixing is extremely easy and the fixing performance is easily secured.

  Therefore, according to the smartphone 1 according to the present embodiment, the battery 6 can be attached to and detached from the front-side cabinet 3 via the rigid substrate 7 by the stretch release adhesive tape 10 provided with the stretch portion 10a having no adhesiveness at one end. Since the battery 6 can be securely fixed, it can be easily removed without being deformed.

(Embodiment 2)
FIG. 5 shows Embodiment 2 of the present invention, which is different from Embodiment 1 in that the shape of the stretch-release adhesive tape 110 is different. In the following embodiments, the same portions as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  That is, in Embodiment 1 described above, a pair of stretch release adhesive tapes 10 are arranged in the width direction of the battery 6 with a gap therebetween, but in this embodiment, one stretch release adhesive tape 110 is provided in the battery 6. Most of the front side of the battery 6 is covered, and the stretched portion 110 a extends in the longitudinal direction along the side surface on one side in the width direction of the battery 6. Since the stretch release adhesive tape 110 adheres most of the battery 6, the adhesive strength is very high, and it is particularly suitable for the battery 6 having a large mass.

  Also in this embodiment, the stretch release adhesive tape 110 is attached to the flat surface 7a of the rigid substrate 7 so that the stretched portion 110a of the stretch release adhesive tape 110 is removed after the rigid substrate 7 is removed from the front cabinet 3 as shown in FIG. It can be pulled in the width direction indicated by the arrow in (a). For this reason, even if the stretch peeling adhesive tape 110 adheres most of the battery 6, it is easy to pull the stretch portion 110a.

  In addition, although the adhesive area of the extended peelable adhesive tape 110 is large and the force required for pulling is increased, the battery 6 is pulled not in the longitudinal direction but in the width direction, so it is easier to stretch than in the case of pulling in the longitudinal direction.

  Therefore, even if the stretch peeling adhesive tape 110 according to this embodiment is used, the battery 6 can be reliably fixed and can be easily removed without being deformed.

(Embodiment 3)
FIG. 6 shows a smartphone 201 according to Embodiment 3 of the present invention, which is different from Embodiments 1 and 2 in that the location where the stretch release adhesive tape 210 is attached is different.

  That is, in the present embodiment, the smartphone 201 is a battery in which a front side cabinet 203 that accommodates the display unit 2 and a plate-like sheet metal 204a are insert-molded and detachably fitted to the rear side wall 203a of the front side cabinet 203. Holder 204. Providing this battery holder 204 increases the rigidity of the entire smartphone 201 and facilitates attachment of various components such as the sub-board 211.

  The battery 206 is detachably bonded to the sheet metal 204 a of the battery holder 204 with a stretch peeling adhesive tape 210. The battery 206 may be positioned using the side wall 204b of the battery holder 204, the rib 203b of the front cabinet 203, or the like.

  In order to avoid the flexible substrate 207a extending from the rigid substrate 207 and the like, the stretch-release adhesive tape 210 has different widths on the left and right sides. However, the stretch-release adhesive tape 210 may have the same width as in the first embodiment.

  In this embodiment, when the battery holder 204 is removed from the front cabinet 203, there is no obstacle for pulling the stretched portion 210a of the stretch peeling adhesive tape 210 such as the rib 203b of the front cabinet 203 upward. The battery is easy to pull upward so that the battery is not loaded, and the tape is difficult to cut.

  Since the metal plate 204 a has higher rigidity than the rigid substrate 7, the stretched portion 210 a can be pulled without applying a load to the battery 206.

  Therefore, also in the enlargement smart phone 201 which concerns on this embodiment, while being able to fix the battery 206 reliably, it can remove easily, without making it deform | transform.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the first and third embodiments, the two extended peeling adhesive tapes 10 and 210 are used, respectively, but the number is not particularly limited, and may be one as in the second embodiment, or may be three. You may increase it.

  In each of the above embodiments, the batteries 6 and 206 are vulnerable to deformation if they are pouch-type batteries, so that the effects of the present invention are remarkably exhibited. However, the batteries 6 and 206 are covered with a relatively rigid resin case or metal case. It may be a battery.

  In the first embodiment, the rigid substrate 7 is attached to the front side cabinet 3 and then stretched and the peeling adhesive tape 10 is attached to the rigid substrate 7. However, before the rigid substrate 7 is attached to the front side cabinet 3, the rigid substrate 7 is attached. 7 may be attached to the battery 6 or may be attached to the battery 6.

  In the above embodiment, the electronic device is the smartphone 1, but a mobile phone, a tablet terminal, a PHS (Personal Handy-phone System), a PDA (Personal Digital Assistant), a personal computer, a mobile tool, a wearable terminal, an electronic dictionary, a calculator, It may be a game machine or the like, and may be a small liquid crystal display, a liquid crystal television, a Blu-ray disc recorder, a DVD recorder, or the like.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use. The technical features described in each embodiment can be combined with each other, and a new technical feature can be formed by combining them.

1 Smartphone (electronic equipment)
2 display section
2a Cover panel
2b Display panel
3 Front side cabinet
3a Sheet metal
3b side wall
3c boss
4 Rear cabinet
5 Rear cover
6 batteries
7 Rigid board (battery mounting part)
7a Flat surface
10 Stretch release adhesive tape (adhesive member)
10a Stretched part (end part not sticky)
110 Stretching release adhesive tape (adhesive member)
110a Enlarged part (end part not sticky)
201 Smartphone (electronic equipment)
203 Front side cabinet 203a Side wall 203b Rib 204 Battery holder (battery mounting part)
204a Sheet metal 204b Side wall 206 Battery 207 Rigid substrate 207a Flexible substrate 210 Stretch release adhesive tape (adhesive member)
210a Enlarged part (end part not sticky)
211 Sub board

Claims (4)

In an electronic device having a battery inside the housing,
A battery mounting portion that is detachable from the housing and attaches the battery;
An adhesive member for removably attaching the battery to the battery mounting portion;
The adhesive member includes an end portion that does not have adhesiveness, and is configured to be peelable by pulling in the direction in which the end portion is extended .
The adhesive member is a pair of stretch-release adhesive tapes having a band shape with a constant width,
The width dimension is set so that the product of the adhesive force per unit area of the release adhesive tape, the area of the adhesive portion of the release adhesive tape, and the safety factor is greater than the gravity of the battery. An electronic device characterized by the above. The electronic device according to claim 1,
The battery mounting portion is a rigid substrate that can be attached to and detached from the housing.
An electronic apparatus, wherein the battery is detachably attached to the rigid substrate by the adhesive member. The electronic device according to claim 1,
The battery mounting portion is a battery holder to which a substrate can be mounted. The electronic device according to claim 3,
The battery holder has a sheet metal that covers the back surface of the display unit,
An electronic apparatus, wherein the battery is detachably attached to the sheet metal by the adhesive member.