JP3181832B2 - Portable equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery attaching / detaching structure of a portable device mainly powered by a button battery.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show a battery mounting / dismounting structure of a conventional portable device. FIG. 7 is a cross-sectional view showing a battery unit of a conventional wrist portable device, showing a state where a battery is incorporated. FIG.
FIG. 8 is a sectional view showing a battery portion of the wrist portable device of FIG. 7 and showing a state in which the battery is removed.

[0003] As shown in FIGS. 7 and 8, a battery housing means including a back cover battery hole 7 a provided in the back cover 7, a battery cover 8 for fixing a battery 6 engaged with the back cover battery hole 7 a, A battery holding means including a plus terminal spring portion 3a formed on the plus terminal 3 for holding the side surface by pressure and a minus terminal 4 for pressing the bottom surface of the battery, and a clearance C 'around the entire outer periphery of the battery.
And a circuit block 2 and a positive terminal 3 on the side 1 with a battery attaching / detaching means having a back cover battery hole 7a having
And the minus terminal 4 are fixed with set screws.

[0004]

However, in the conventional battery attaching / detaching structure, as shown in FIG. 8, by removing the battery lid 8 of FIG. 7, the fixing force of the battery lid 8 for fixing the battery 6 is released. Is done. Further, the spring force of the negative terminal 4 that presses the bottom surface of the battery 6 causes the battery to pop out of the battery hole 7a of the back cover, thereby easily removing the battery from the battery hole 7a of the back cover.

[0005] However, in the prior art, while the battery can be easily removed from the battery hole 7a on the back cover, there is a problem that the child accidentally swallows the battery. In recent years, the structure is such that the battery lid does not come off easily with the power of an infant. A structure that slides open while pushing the knob of the battery lid with the power of an adult. Structure that does not function unless the battery lid is closed after battery replacement. Such a safety design is required. Therefore, an object of the present invention is to provide a portable device with a battery lid having a battery detachable structure in which even if the battery lid 8 is removed, the battery does not protrude from the battery hole 7a of the back lid even if the battery lid 8 is removed. It is.

[0006]

In order to solve the above-mentioned problems, the present invention has a structure in which a part of the positional relationship between a battery and a back cover battery hole is vertically overlapped with each other. The upper and lower overlapping portions of the battery and the back cover battery hole are released by the inserted battery removing member (for example, the tip of a mechanical pen), and the battery is removed from the back cover battery hole.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a portable device with a battery cover having a battery detachable structure in which the positional relationship between a battery and a battery hole in a back cover partially overlaps vertically. The center position of the inner periphery of the back cover battery hole is eccentric with respect to the center position of the outer periphery of the battery in the opposite direction in which the side surfaces of the battery are pressed against each other by the plus terminal spring portion formed in the plus terminal. Furthermore, the amount of eccentricity between the outer peripheral center position of the battery and the inner peripheral center position of the back cover battery hole is:
It is effective to make about twice the amount of planar overlap between the battery and the back cover battery hole.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the drawings. FIG. 1 is a functional block diagram of the present invention.
21 is a battery storage means, 22 is a battery holding means, 2
Reference numeral 3 denotes a battery attaching / detaching means. FIG. 2 is a plan view of the battery unit when the back cover and the battery cover are removed, showing a built-in state of the battery of the portable device, and FIG. 3 is a diagram showing a built-in state of the battery of the portable device. It is a top view of a battery part when a battery lid is removed. FIG. 4 is FIG.
A- when the back cover and battery cover are installed
FIG. 5 is a cross-sectional view along the line A ′, and FIG. 5 is a cross-sectional view along the line BB ′ in FIG. FIG. 6 is a sectional view when the battery is removed in FIG.

The configuration of an embodiment of the present invention will be described below.
As shown in FIGS. 1 and 4, a back cover battery hole 7a provided in the back cover 7 and a battery cover 8 engaging with the back cover battery hole 7a form a battery housing means 21, and a positive terminal which presses and holds a side surface of the battery 6 The battery 3 and the negative terminal 4 that presses the bottom surface of the battery form a battery holding means 22. Battery 6 and back cover battery hole 7
The battery attaching / detaching means 23 is formed by a configuration in which a part of the cell a overlaps vertically and a battery removing member 9 (see FIG. 6) inserted in the vicinity thereof.

As shown in FIGS. 2 and 4, a circuit block 2, a plus terminal 3 and a minus terminal 4 are fixed to the body 1 with set screws 5 (see FIGS. 2 and 4). Further, a body operation member 10 is provided on the body 1 so as to face the plus terminal 3. .

The arrangement of the battery 6 and the back cover battery hole 7a shown in FIG. 3 and FIG. 5 is determined by: eccentricity between the center of the battery outer periphery and the center of the back cover battery hole = D Assuming that the amount of plane overlap at a part of the inner circumference = C, there is a relationship that D = C is about twice.

Next, a method of replacing a battery of a portable device will be described. The battery cover 8 shown in FIG. 4 that engages with the back cover battery hole 7a provided on the back cover 7 is removed. At this time, the fixing force of the battery lid 8 for fixing the battery 6 is released, and
The spring force of the minus terminal 4 shown in FIG. 5, which presses the bottom surface of the battery 6 against the spring force of the plus terminal, which holds the side surface of the battery 6 by pressure, exceeds the spring force of the plus terminal, and the battery tends to jump out of the back cover 7.

However, since the battery 6 and the back cover battery hole 7a have a plane overlap C in the pressure contact direction of the positive terminal spring portion 3a, the battery does not jump out of the back cover. Further, the battery removing member 9 shown in FIG. 6, for example, the tip of a mechanical pen is pushed into the vicinity of the overlapping portion of the battery hole 7 a on the back cover of the battery 6,
By tilting the battery, the overlap C between the battery 6 and the back cover battery hole 7a is eliminated, so that only the repulsive force of the negative terminal 4 that presses the bottom surface of the battery is applied to the battery 6, and the battery 6 rises. Thus, the battery 6 can be easily taken out.

At this time, it is desirable that the relationship between the fixing force of the battery lid that presses and holds the upper surface of the battery and the repulsive force of the minus terminal that presses the lower surface of the battery be set as follows. The repulsion of the negative terminal is greater than the battery weight. The fixing force of the battery lid is larger than the repulsive force of the negative terminal.

[0015]

As described above, the present invention makes it possible to easily replace a battery in a portable device with a battery lid and prevent a child from accidentally ingesting a battery, and has the following effects. Products can be made thinner. The simple structure of the battery lid enables cost reduction.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a portable device according to the present invention.

FIG. 2 is a plan view of the battery section of the wrist portable device according to the embodiment of the present invention, showing a state in which the battery is incorporated, and showing a battery cover when the back cover and the battery cover are removed.

FIG. 3 is a plan view of the battery unit in the wrist portable device according to the embodiment of the present invention, showing a state in which the battery is incorporated, and showing only the battery cover;

FIG. 4 is a cross-sectional view taken along line AA ′ of FIG. 2 when a back cover and a battery cover are incorporated.

FIG. 5 is a sectional view taken along the line BB ′ of FIG. 3;

FIG. 6 is a cross-sectional view when the battery is removed in FIG.

FIG. 7 is a cross-sectional view showing a battery unit of a conventional wrist portable device, showing a state in which a battery is incorporated.

8 is a sectional view showing a battery unit of the wrist portable device of FIG. 7 and showing a state in which a battery is removed.

[Explanation of symbols]

 1 side 2 circuit block 3 plus terminal 3a plus terminal spring portion 4 minus terminal 5 set screw 6 battery 7 back cover 7a back cover battery hole 8 battery cover 9 battery removal member 10 external operation member 21 battery storage means 22 battery holding means 23 battery attachment / detachment means

Continuation of the front page (56) References JP-A-51-68261 (JP, A) JP-A-55-1342 (JP, U) JP-A-58-79963 (JP, U) JP-A-1-126055 (JP , U) Hikaru Hira 1-174849 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G04C 10/00 G04G 1/00

Claims (3)

(57) [Claims] 1. A back cover battery hole (7a) provided in a back cover (7) of a portable device, a battery housing means (21) including a battery cover (8) engaged with the back cover battery hole, and a battery (6).
Battery holding means (2) comprising a plus terminal (3) for pressing and holding the side surface of the battery and a minus terminal (4) for pressing the bottom surface of the battery.
In the battery part structure of the portable device having 2), in a state where a part of the outer periphery of the battery (6) and a part of the inner periphery of the back cover battery hole (7a) are vertically overlapped and the battery cover (8) is opened. The upper surface of the battery (6) urged by the minus terminal (4) and the inner surface of the back cover (7) are in contact at only one of the overlapping portions, and the battery (6) is held. The battery (6) is inserted by inserting a battery removing member (9) in the vicinity of an overlapping portion of the battery (6) with the back cover battery hole (7a).
Mobile device characterized by removing. 2. An inner peripheral center position of the back cover battery hole (7a) with respect to an outer peripheral center position of the battery (6) is determined by a positive terminal spring portion (3a) formed in the positive terminal (3). 2. The portable device according to claim 1, wherein the mobile device is eccentric in a direction opposite to the side in which the side surface is pressed. 3. The eccentricity between the center of the outer periphery of the battery (6) and the center of the inner periphery of the back cover battery hole (7a) is about twice the amount of planar overlap between the battery (6) and the back cover battery hole (7a). The portable device according to claim 1, wherein: