JP2000215864A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize and thin an apparatus and to enhance its reliability, by omitting a detachable battery pack in a personal computer and a video camera driven by a battery. SOLUTION: A flexible and flat lithium polymer secondary battery 24 is fixed to a part of the rear cabinet 22 of a display panel 16 having a display block 23 comprising a liquid crystal display device, and an electronic apparatus is driven by such secondary battery 24 as this. The electronic apparatus is driven by the flexible and flat secondary battery 24 disposed along an outer housing. Moreover, since the lithium secondary battery 24 is soft and flat, this secondary battery can be easily disposed along the outer housing, and a detachable battery pack and a detachable mechanism are not required. Thereby, the number of components used can be cut and reliability can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment, and more particularly to electronic equipment driven by a battery.

[0002]

2. Description of the Related Art As shown in FIG. 9, for example, a portable computer called a notebook personal computer has a flat main body 1 and a display which is rotatably attached to the main body 1 via a hinge portion 2. And a panel 3.
The computer is driven by a battery pack 4 mounted between the left and right hinges 2.

[0003] As shown in FIG.
It comprises a secondary battery and has a connector 5. Such a battery pack 4 is connected to the back side of the main body 1 between the hinge portions 2 as shown in FIGS. 9 and 11.

A small portable video camera is shown in FIG.
As shown in FIG. 1, a main body 8 and a display panel 9 attached to the side of the main body 8 so as to be openable and closable are provided, and are driven by a battery pack 10. The battery pack 10 is made of a secondary battery, and is detachably attached to the side of the main body 8 below the portion where the display panel 9 is stored.

[0005]

As described above, in a conventional portable computer or video camera, the battery packs 4 and 10 are externally attached, and the battery packs 4 and 10 are charged by a charger and then attached to the set body. Alternatively, charging is performed in a state of being attached to the set. The existence of such battery packs 4 and 10 hinders the thinning and miniaturization of the device, which is a design constraint.

Further, since the battery packs 4 and 10 are detachable, the connection of the connector 5 must be ensured and a mounting mechanism for detachably mounting the battery is required. For these reasons, there has been a problem in that the reliability of the contact has a problem or the number of parts increases.

[0007] The present invention has been made in view of the above problems, and has improved design flexibility, does not require a battery pack attaching / detaching mechanism or a connection mechanism, and thereby ensures reliability. An object of the present invention is to provide an electronic device that is easy and can reduce the number of parts.

[0008]

According to one aspect of the present invention, there is provided an electronic device driven by a battery, wherein the battery is formed of a flat thin battery and is arranged along an outer casing. It is about.

Here, the batteries may be arranged along the outer casing in a state of being embedded in the outer casing. Further, the batteries may be arranged along the outer casing in a state of being housed in a concave portion formed on the inner surface of the outer casing. Further, the batteries may be arranged along the outer casing in a state of being stored in a concave portion formed on the outer surface of the outer casing.

According to another aspect of the present invention, there is provided an electronic device driven by a battery, wherein the electronic device has a panel-shaped display device, the battery is a flat thin battery, and the thin battery is the panel-shaped display device. The present invention relates to an electronic device which is mounted along an outer casing on the back side of the device.

Here, the thin battery may be embedded and mounted inside the panel-shaped display device. Further, the thin battery may be housed and held in a concave portion formed on the surface of the panel-shaped display device. Further, the electronic device may be a portable computer application device, and the panel-shaped display device may be a liquid crystal display panel. Further, the electronic device may be an imaging device, and the panel-shaped display device may be a liquid crystal display panel for a monitor.

Still another aspect of the present invention relates to an electronic device driven by a battery, wherein the battery is formed of a flexible and flat lithium polymer secondary battery, and is arranged along an outer casing. Things.

Here, the battery may be a lithium polymer secondary battery in which a gel electrolyte is held between sheet-like positive and negative electrodes. Further, the battery may be a flat battery in which a sheet holding a gel electrolyte between positive and negative electrodes is wound and flattened. The positive electrode may be made of a sheet containing a lithium compound, and the negative electrode may be made of a sheet containing graphite. The gel electrolyte may be comprised of poly (vinylidenefluoride-CO-hexafluoropropylene).

In a preferred embodiment of the present invention, a thin flexible battery such as a lithium polymer secondary battery is mounted on a cabinet portion on the back side of a display panel in an electronic device such as a computer application device or a video device. And the reliability of the connection mechanism has been improved. In particular, by using a lithium polymer secondary battery as a battery, the conventional battery pack can be eliminated, connection reliability is improved, and cost is reduced by eliminating a battery pack mounting mechanism. Things.

According to such an embodiment, the degree of freedom in designing electronic equipment is improved. In addition, a battery attaching / detaching mechanism is not required, so that a mounting area for it can be omitted, and the number of components can be reduced. In addition, a battery attaching / detaching mechanism is not required, and contact reliability is improved. This makes it possible to reduce the cost of the electronic device as a whole.

[0016]

1 to 4 show a portable personal computer constituting an electronic apparatus according to a first embodiment of the present invention. This personal computer comprises a flat main body 15 and a display panel 16 which is attached to the back side of the main body 15 so as to be openable and closable.
The display panel 16 has a window, and a display block 23 made of a liquid crystal display device is attached to the window. On the other hand, a keyboard 17 on which a plurality of keys are arranged is provided on the upper surface of the main body 15, and other operation means are attached as necessary.

Next, the display panel 16 will be described with reference to FIG. The display panel 12 has an outer casing composed of a front cabinet 21 and a rear cabinet 22, and a display block 23 composed of an LCD (liquid crystal display) is arranged so as to face a window of the front cabinet 21. A lithium polymer secondary battery 24 is mounted in the rear cabinet 22 in a buried state, and the lithium polymer secondary battery 24 is mounted along the rear cabinet 22.

As shown in FIG. 3, a lithium polymer secondary battery 24 is obtained by dissolving poly (vinylidene fluoride-CO-hexafluoropropylene) in dimethyl carbonate, and then dissolving an electrolyte composed of ethylene-polycarbonate + propylene carbonate + γ-butyrolactone + LiPF6. After the addition of the liquid, only the above-mentioned dimethyl carbonate is volatilized, and a gel electrolyte 28 is provided. The gel electrolyte 28 is held between the positive electrode 29 and the negative electrode 30.

Here, Li is used as the active material of the positive electrode 29.
CoO ₂ is made of graphite as an active material of the negative electrode 30. Both the positive electrode 29 and the negative electrode 30 are manufactured by the same method as that of the conventional lithium ion secondary battery. Then, after the above-mentioned gel electrolyte is impregnated and applied onto these electrodes, the electrodes are wound flat as shown in FIG. The copper foil 31 is bonded to the outside of the positive electrode 29, and the aluminum foil 32 is bonded to the outside of the negative electrode 30. Leads 34 and 35 each having a ribbon shape are drawn out while being connected to the copper foil 31 and the aluminum foil 32, and the output of the secondary battery 24 is taken out through such leads 34 and 35. Like that. Although not shown here, as shown in FIG. 4, after winding, a lithium polymer secondary battery is formed by vacuum packaging with a laminate film of an aluminum base material.

As shown in FIG. 2, such a secondary battery 24 is mounted so as to be embedded in the rear cabinet 22 of the display panel 16.

As described above, the portable computer according to the present embodiment is configured such that the battery is composed of the lithium polymer secondary battery 24, and the secondary battery 24 is placed in the rear cabinet 22 having a large area of the display panel 16. It is buried by integral molding. Therefore, it is not necessary to attach the battery pack later, and the degree of freedom in design is improved. In addition, a battery pack attaching / detaching mechanism is not required, so that a mounting area is not required, and the number of components can be reduced. In addition, a battery pack attaching / detaching mechanism is not required, and contact reliability is improved. In addition, the cost of the electronic device can be reduced by these.

FIG. 5 shows another embodiment. In this embodiment, the lithium polymer secondary battery 24 is accommodated in a concave portion 40 formed on the inner surface of the rear cabinet 22 of the display panel 16. Therefore, in this case, the lithium polymer secondary battery 24 is disposed along the inner surface of the rear cabinet 22.

FIG. 6 shows still another embodiment. In this embodiment, a concave portion 41 is formed on the lower surface of the main body 15 and the lithium polymer secondary battery 24 is arranged in the concave portion 41. Therefore, the computer is driven by such a secondary battery 24, and the computer can be driven without using a detachable battery pack.

Next, still another embodiment will be described with reference to FIGS. In this embodiment, the present invention is applied to a small portable video camera. The video camera is a flat main body 45 having a rectangular parallelepiped shape, an optical system 46 provided on the upper end of the main body 45 at a front end thereof, and is mounted on the opposite side of the main body 45 with respect to the optical system 46. And a view finder 47. A display panel 48 is attached to the side surface of the main body 45 so as to be freely opened and closed.

Here, as shown in FIG. 8, a front cabinet 51 and a rear cabinet 52 constitute an outer casing of the display panel 48. A display block 53 composed of an LCD is housed inside the front cabinet 51. A lithium polymer secondary battery 54 is arranged inside the rear cabinet 52 and on the rear side of the display block 53. The lithium polymer secondary battery 54 is the same as that used in the first embodiment, and has the structure shown in FIGS.

According to such a video camera, the video camera can be driven by the lithium polymer secondary battery 54 housed inside the rear cabinet 52 of the display panel 48. There is no need to detachably attach the battery pack to the battery pack. Therefore, the degree of freedom in design is improved, and a mechanism for attaching and detaching the battery pack is not required, and the mounting area for the mechanism is not required. In addition, the number of components for attachment / detachment is reduced, and reliability is improved by omitting the attachment / detachment mechanism.

[0027]

As described above, according to the present invention, in an electronic device driven by a battery, the battery is formed of a flat thin battery and is arranged along the outer casing.

Therefore, according to such a configuration, the electronic device is driven by the flat and thin battery which is arranged along the outer casing, and it is not necessary to attach a detachable battery pack. .

Another invention is an electronic device driven by a battery, wherein the electronic device has a panel display device,
The battery is formed of a flat thin battery, and the thin battery is mounted along the outer casing on the back side of the panel-shaped display device.

Therefore, according to such a configuration, the electronic device is driven by the thin battery attached along the outer casing on the back side of the panel-shaped display device, and the battery is detachably attached to a predetermined portion. The electronic device can be driven without attaching a pack. As a result, the degree of freedom in design is improved, and a mechanism for attaching / detaching the battery pack is not required, so that the mounting area and the number of components are reduced. In addition, reliability is improved by eliminating the need for a battery pack attaching / detaching mechanism.

Still another aspect of the invention is an electronic device driven by a battery, wherein the battery is formed of a flexible and flat lithium polymer secondary battery and is arranged along an outer casing.

Therefore, according to such a configuration, the electronic device is driven by the flexible and flat lithium polymer secondary battery disposed along the outer casing. In addition, since the battery is made of a flexible and flat lithium polymer secondary battery, the secondary battery can be easily arranged along the outer casing, and a detachable battery pack and its detachable mechanism Becomes unnecessary, and the number of parts is reduced and the reliability is improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a portable computer according to a first embodiment.

FIG. 2 is a vertical sectional view of the display panel.

FIG. 3 is an enlarged sectional view of a main part of a lithium polymer secondary battery.

FIG. 4 is an external perspective view of the secondary battery.

FIG. 5 is a longitudinal sectional view of a display panel according to another embodiment.

FIG. 6 is a longitudinal sectional view of a main body according to still another embodiment.

FIG. 7 is an external perspective view of a video camera according to still another embodiment.

FIG. 8 is a vertical sectional view of a display panel of the video camera.

FIG. 9 is a perspective view of a conventional portable computer.

FIG. 10 is a perspective view of a battery pack used in the computer.

11 is a vertical sectional view of a portion of a display panel of the computer shown in FIG.

FIG. 12 is an external perspective view of a conventional video camera.

[Explanation of symbols]

1 ‥‥ body, 2 ‥‥ hinge, 3 ‥‥ display panel, 4 ‥
{Battery pack, 5} Connector, 8} Body, 9}
{Display panel, 10} Battery pack, 15} Body, 16} Display panel, 17} Keyboard, 21}
‥ Front cabinet, 22 ‥‥ Rear cabinet,
23 ‥‥ display block (LCD), 24 ‥‥ lithium polymer secondary battery, 28 ‥‥ gel electrolyte, 29 ‥‥ positive electrode, 30 ‥‥ negative electrode, 31 ‥‥ copper foil, 32 ‥‥ aluminum foil , 34 ‥‥ lead (positive), 35 ‥‥ lead (negative), 40 ‥‥ recess, 41 ‥‥ recess, 45 ‥‥ body,
46 ‥‥ optical system, 47 ‥‥ viewfinder, 48 ‥‥
Display panel, 51 ‥‥ front cabinet, 52 ‥‥
Rear cabinet, 53mm display block (LCD),
54 ‥‥ lithium polymer secondary battery

Claims (14)

[Claims] 1. An electronic device driven by a battery, wherein the battery is formed of a flat thin battery and is arranged along an outer casing. 2. The electronic apparatus according to claim 1, wherein the battery is arranged along the outer casing in a state where the battery is embedded in the outer casing. 3. The electronic device according to claim 1, wherein the battery is arranged along the outer casing while being stored in a concave portion formed on the inner surface of the outer casing. 4. The electronic device according to claim 1, wherein the battery is arranged along the outer casing in a state of being stored in a concave portion formed on the outer surface of the outer casing. 5. An electronic device driven by a battery, wherein the electronic device has a panel-shaped display device, wherein the battery comprises a flat thin battery, and the thin battery is provided on a rear side of the panel-shaped display device. Electronic equipment characterized by being mounted along an outer casing. 6. The electronic apparatus according to claim 5, wherein the thin battery is embedded and mounted inside the panel-shaped display device. 7. The electronic apparatus according to claim 5, wherein the thin battery is housed and held in a concave portion formed on a surface of the panel-shaped display device. 8. The electronic device according to claim 5, wherein the electronic device is a portable computer application device, and the panel display device is a liquid crystal display panel. 9. The electronic device according to claim 5, wherein the electronic device is an image pickup device, and the panel-shaped display device is a monitor liquid crystal display panel. 10. An electronic device driven by a battery, wherein the battery is formed of a flexible and flat lithium polymer secondary battery, and is arranged along an outer casing. 11. The electronic apparatus according to claim 10, wherein the battery is a lithium polymer secondary battery in which a gel electrolyte is held between sheet-like positive and negative electrodes. 12. The electronic apparatus according to claim 11, wherein the battery is a flat battery by winding a sheet holding a gel electrolyte between a positive electrode and a negative electrode. 13. The electronic apparatus according to claim 11, wherein the positive electrode comprises a sheet containing a lithium compound, and the negative electrode comprises a sheet containing graphite. 14. The electronic apparatus according to claim 11, wherein the gel electrolyte is made of poly (vinylidene fluoride-CO-hexafluoropropylene).