JP2000323186A - Battery device of electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deterioration of an output characteristic due to the drop of battery temperature by utilizing heat generated from an electronic circuit of an electronic apparatus for warming the battery. SOLUTION: In the case that a computer is used, for instance, as an electronic apparatus in a place of low ambient temperature, when a holding member 14 is displaced to a non-holding position by operating an operation knob part 14A formed on the holding member 14, a tapered part 14B separates from a tapered part 12C formed at the upper end part of a battery case 7. A heat- transfer member 12 located at a non-transferring position is displaced to a transferring position by the energizing force of a heat-conductive rubber 13, a heat-transfer surface 7A of a battery case 7 comes into a contact state with a heat-transfer surface 12A of the heat-transfer member 12, and the heat generated from a CPU 10 is transferred to the battery case 7 through a heat-transfer plate 11A of a heat-radiating plate 11, the heat-conductive rubber 13 and the heat-transfer member 12. The heat is transferred to a battery 8 through the battery case 7, so that the temperature of the battery 8 does not drop and the battery 8 can be used in the most suitable condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heat retention of a battery in an electronic device in which a heat-generating electronic circuit such as a CPU is incorporated.

[0002]

2. Description of the Related Art Laptop computers are widely used as electronic devices in which heat-generating electronic circuits such as CPUs are incorporated. Such computers are mainly composed of a main body having a keyboard and a main body. A lid body rotatably provided between a closed position and an open position and having a display arranged on an inner surface thereof;
It incorporates a PU or CPU heatsink and a battery used as a power source for the computer when it is carried.

[0003]

The useable time of a computer can be increased year by year by improving the parts used and the development of a battery, but such a computer is often used outdoors. As a result, when the battery is used outdoors in the winter, the temperature of the battery is lowered, so that the output characteristics are deteriorated and there is a problem that the use of the computer is hindered.

An object of the present invention is to provide a battery device for an electronic device which solves the above problem.

[0005]

SUMMARY OF THE INVENTION According to the present invention, in an electronic device in which an electronic circuit generating heat and a battery used as an operation power supply are incorporated, heat generated from the electronic circuit is used for keeping the battery warm. It is like that.

[0006]

1 is a cross-sectional view of a main part showing a battery device of the present invention, FIG. 2 is a cross-sectional view of a main part showing a different state of the battery device of the present invention, and FIG. 3 is a perspective view of a computer.

In FIG. 3, reference numeral 1 denotes a main body constituting a computer, on which a keyboard 2, a mouse pad 3 operated when moving a mouse pointer, and a pad switch 4 for a click operation are arranged on the upper surface. Reference numeral 5 denotes a lid which is rotatable with respect to the main body 1 between a closed position and an open position, and a display device 6 is disposed on an inner surface thereof. Reference numeral 7 denotes a battery case which constitutes a battery storage portion provided on the side surface of the main body 1 and is provided with a storage recess for storing the battery 8 and is made of a member having a property of transmitting heat. I have.

Next, in FIG. 1, reference numeral 9 denotes a printed circuit board fixed inside the main body 1, and incorporates a CPU 10, which is an electronic circuit that generates heat. 11 is the CP
A heat radiating member for releasing heat generated from U10,
The heat transfer plate 11A is provided so as to be in contact with the PU 10, and is integrally formed.

Reference numeral 12 denotes a heat transfer member provided to be displaceable in the directions of arrows A and B with respect to the bottom plate 1A. A heat transfer surface 12A that is in contact with 7A is formed. 13 is a heat transfer surface 1 of the heat transfer member 12
Back surface 12B of 2A and heat transfer plate 11A of heat dissipation member 11
And a heat conductive rubber provided between the two.

A holding member 14 is provided on the upper plate 1B of the main body 1 so as to be vertically displaceable by a screw structure. The holding member 14 has an operation knob portion 14A projecting upward and a lower portion thereof. Is formed with a tapered portion 14B. The holding member 14 is provided so as to be displaceable between a holding position shown in FIG. 1 and a non-holding position shown in FIG. 2. When the holding member 14 is in the holding position, the tapered portion 14B is provided.
Abuts against the tapered portion 7B formed at the upper end of the battery case 7 and the tapered portion 12C formed at the upper end of the heat transfer member 12, thereby causing the heat transfer member 12 to elastically bias the heat conductive rubber 13. And is displaced to a non-transmission position in the direction of arrow B. In such a configuration, the holding member 14 is formed of a member that does not easily transmit heat.

Although the present invention is configured as described above, the operation will now be described. The state shown in FIG. 1 shows a use state when the outside air temperature is normally usable, and the holding member 14 is at the holding position. In such a state, the tapered portion 14B is formed on the tapered portion 7B formed on the upper end portion of the battery case 7 and the heat transfer member 12B.
Abuts on the tapered portion 12C formed at the upper end of the
The heat transfer member 12 is displaced to a non-contact position in the direction of arrow B against the elastic urging force of the heat conductive rubber 13. Therefore, the heat generated by the CPU 10 is generated by the heat radiating member 1.
The heat is not transmitted to the battery case 7 via the heat transfer plate 11A, the heat conductive rubber 13 and the heat transfer member 12. As a result, the temperature of the battery 8 stored in the battery case 7 does not increase, and the battery 8 can be used in an optimal state.

Next, a case where the computer is used in a place where the outside air temperature is low will be described. In such a case, the user determines that the temperature is low, and operates the operation knob 14A provided on the holding member 14 to displace the holding member 14 to the non-holding position shown in FIG. By performing such an operation, the tapered portion 14B of the holding member 14 is separated from the tapered portion 7B formed at the upper end of the battery case 7 and the tapered portion 12C formed at the upper end of the heat transfer member 12. As a result, the heat transfer member 12 at the non-transmission position is displaced to the transmission position in the direction of arrow A by the urging force of the heat conductive rubber 13.

FIG. 2 shows such a state, in which the heat transfer surface 7A of the battery case 7 and the heat transfer surface 12A of the heat transfer member 12 are in contact with each other. Therefore, CPU1
The heat generated from 0 is transmitted to the battery case 7 via the heat transfer plate 11A of the heat radiation member 11, the heat conductive rubber 13 and the heat transfer member 12. As a result, heat is transmitted to the battery 8 via the battery case 7, and the temperature of the battery 8 does not decrease, so that the battery 8 can be used in an optimal state.

In this embodiment, the user decides whether the outside air temperature is high or low. However, a detecting means for detecting the temperature of the battery 8 is provided, and a display for displaying the temperature detected by the detecting means is provided. If the means is provided in the electronic device, it can be easily determined whether or not the heat generated by the CPU 10 should be transmitted to the battery 8.

In this embodiment, a case where the present invention is applied to a computer has been described. However, the present invention can be applied to other electronic devices.

[0016]

According to the present invention, in an electronic device in which an electronic circuit generating heat and a battery used as an operation power supply are incorporated, heat generated from the electronic circuit is used for keeping the battery warm. When used in a place where the outside temperature is low, it is possible to use the battery for a long time without deteriorating the output characteristics of the battery.

Further, according to the present invention, the heat transfer member for transferring the heat generated from the electronic circuit to the battery can be moved toward and away from the battery case of the battery, so that the temperature of the battery can be adjusted according to the outside air temperature. Can be done.

According to the present invention, there is provided a holding member for holding the heat transfer member at a position separated from the battery case and an elastic member for urging the heat transfer member toward the battery case. Since the heat transfer member is displaced in the direction of the battery case by the displacement of the heat transfer member, the configuration is simplified.

Further, in the present invention, since the heat conductive rubber is used as the elastic member for urging the heat transfer member toward the battery case, that is, the elastic member is used as the heat transfer member. This has the advantage that the configuration is simplified.

In the present invention, the detection means for detecting the temperature of the battery is provided, and the display means for displaying the temperature detected by the detection means is provided. Therefore, the heat generated from the electronic circuit should be transmitted to the battery. It can be easily determined whether or not.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a battery warming device of the present invention.

FIG. 2 is a cross-sectional view of a main part showing a battery heat retaining device of the present invention in a different state.

FIG. 3 is a perspective view of a computer.

[Explanation of symbols]

 7 Battery Case 8 Battery 10 CPU 11 Heat Dissipating Member 12 Heat Transfer Member 13 Thermal Conductive Rubber 14 Holding Member

Claims (5)

[Claims] 1. A battery device for an electronic device in which an electronic circuit generating heat and a battery used as an operation power supply are incorporated, wherein heat generated from the electronic circuit is used to keep the battery warm. 2. The battery device according to claim 1, wherein a heat transfer member that transfers heat generated from the electronic circuit to the battery is made to be able to contact and separate from a battery case of the battery. A holding member for holding the heat transfer member at a position separated from the battery case, an elastic member for urging the heat transfer member toward the battery case, and a displacement of the holding member to a non-holding position. The battery device according to claim 2, wherein the heat transfer member is displaced in a battery case direction by the following. 4. The battery device according to claim 3, wherein a heat conductive rubber is used as the elastic member. 5. The battery device according to claim 2, further comprising detection means for detecting the temperature of the battery, and display means for displaying the temperature detected by the detection means.