JP2001041825A - Temperature display device, electric apparatus, and information processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display the temperature of a heating part itself by connecting heat-light conversion means which converts heat to light to a heating part, and introducing the light from the heat-light conversion means to an outside part for displaying a temperature. SOLUTION: Related to a temperature display device 3, a heat-light conversion means 4 for converting heat to light is connected to a heating part 2, and the light from the heat-light conversion means 4 is introduced to the outside of a case 1 through a light guiding pipe 5 for displaying a temperature. Related to the heat-light conversion means 4, a heat-light conversion element which illuminates under heat is fixed to the surface of the heating part 2. Alternatively, the thermal energy of the heating part 2 may be used for power generation, and the generated power illuminates a light-emitting diode. The light guiding pipe 5 comprises an optical fiber, etc., with its one end facing the heat-light conversion means 4 with a specified interval as a wide part 5a while the other end part exposed outside the case 1 as a lens. The heat of the heating part 2 is heat-light converted 4, and ejected outside of the case 1 from a display part 6 through the light guiding pipe 5, for temperature display.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature display device for displaying the temperature of a heat generating portion, an electric device equipped with the temperature display device, and an information processing device.

[0002]

2. Description of the Related Art In an electric device having a heat generating portion, for example, an iron or the like, a user may accidentally touch the heat generating portion while the heat generating portion is generating heat.
Some display units are provided with a display unit for notifying a user of a heat generation state of the heat generation unit.

In this type of conventional electric equipment, when a power is turned on, a lamp on a display unit is turned on, and a user can check a heat generation state of a heat generation unit by looking at the lamp.

[0004]

However, such a conventional electric device does not have a structure for displaying the temperature of the heat-generating portion itself, and therefore cannot accurately grasp the heat-generating state of the heat-generating portion. .

[0005] Therefore, in the case of an iron, for example, there is a risk of accidentally touching the heat-generating portion after turning off the power and causing burns due to the heat remaining in the heat-generating portion.

The present invention has been made in view of such problems, and has as its object to provide a temperature display device capable of displaying the temperature of a heat generating portion itself, and to solve the above problems.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is a temperature display device for displaying the temperature of a heating section in an electric apparatus having a heating section, wherein the heating section converts heat into light. The thermo-light conversion means is connected, and the light from the thermo-light conversion means is guided to the outside to indicate the temperature.

In this temperature display device, since the temperature of the heat generating portion itself can be displayed, the user can accurately grasp the heat generation state of the heat generating portion by looking at this display.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a housing of an electric device, and reference numeral 2 denotes a heat generating portion (heat generating body) inside the housing 1. The heat generating unit 2 is, for example, a heat generating plate of an iron or a CPU of an information processing device.

The equipment having the heat generating section 2 is provided with a temperature display device 3 according to the present invention. This temperature display device 3 is connected to a heat-to-light conversion means 4 for converting heat into light to the heat-generating portion 2 and guides light emitted from the heat-light conversion means 4 to the outside of the housing 1 by a light guide tube 5 to display a temperature. It has a structure to do.

As the heat-light conversion means 4, a heat-light conversion element which emits light when heat is applied is used. Further, as the heat-light conversion means 4, it is also possible to adopt a method in which power is generated by using the heat energy of the heat generating portion 2 and a light emitting diode or the like is caused to emit light by the generated power.

The light guide tube 5 is made of a material having excellent photoconductivity such as an optical fiber. One end of the light guide tube 5 is formed as a widened portion 5a extending in a funnel shape, and faces the thermo-optical conversion means 4 at a predetermined distance. The other end is formed in a lens shape, and this is
And is exposed on the outer surface of the housing 1. The surface of the light guide tube 5 (excluding the surface of the widened portion 5a facing the heat-light converting means 4 and the display portion 6) is subjected to a surface treatment that does not allow light to pass through.

In the temperature display device 3 configured as described above, the heat of the heat generating section 2 is converted into light by the heat-light converting means 4, and the light is taken into the light guide tube 5 and passes through the light guide tube 5. The temperature is displayed by being emitted from the display unit 6 to the outside of the housing 1. Here, when the heat generating unit 2 is, for example, a CPU of an information processing device,
The cooling effect can also be obtained.

As described above, the temperature of the heat generating portion 2 itself is directly displayed by illuminating the display portion 6, so that the heat generation state of the heat generating portion 2 can be confirmed at a glance by looking at this display.

In this temperature display, particularly in the configuration of this embodiment, the light exiting from the heat-light conversion means 4 is formed by the funnel-shaped widened portion 5a of the light guide tube 5 facing the heat-light conversion means 4. Since the surface of the light guide tube 5 is subjected to a surface treatment that does not allow light to pass through, the light does not leak in the middle of the light guide tube 5. , A more reliable temperature display is performed.

The light guide tube 5 has a widened portion 5a as shown in FIG.
May be directly fixed to the heat-light conversion means 4. In this case, since the light emitted from the heat-light conversion means 4 is directly taken into the light guide tube 5 and guided to the display unit 6, there is almost no loss of light, and a more reliable temperature display is possible.

Further, in this temperature display, it is more effective to change the color in accordance with the temperature of the heat generating portion 2 for display. That is, for example, if the temperature of the heating unit 2 is 200 ° C. or higher, red, yellow at 150 to 200 ° C., green at 60 to 150 ° C., and no light emission at 60 ° C. or lower, the heat generation state of the heating unit 2 is more improved. An accurate indication can be displayed.

This can be realized by employing, as the heat-light conversion means 4, a heat-light conversion element whose color changes according to the temperature. Alternatively, in the case of a method in which the light emitting diode emits light using generated power using the heat energy of the heat generating unit 2, a light emitting diode whose color changes according to the voltage may be used.

By changing the color in accordance with the temperature of the heat generating portion 2 and displaying it, the user can more accurately grasp the temperature of the heat generating portion 2.

FIG. 3 shows an example of an electric apparatus provided with a temperature display device according to the present invention, in which an iron is shown. That is, in the drawing, reference numeral 10 denotes an iron as a whole, 11 denotes an iron body, 12 denotes a handle, and 13 denotes a power on / off and temperature switch.

In this iron 10, an iron body 11
A heat generating plate 14 is provided as a heat generating portion 2 on the bottom side of the device, and a temperature display device 3 according to the present invention is built in to indicate a heat generating state of the heat generating plate 14.

That is, inside the iron body 11, the heat-light converting means 4 is fixedly adhered to the inner surface side of the heat-generating plate 14, and the heat-light converting means 4 converts the heat of the heat-generating plate 14 into light. The light passes through the light guide tube 5 and the handle 12
The temperature is displayed by emitting light from the display unit 6 exposed on the upper surface side of the device.

The user can confirm the heat generation state of the heat generating plate 14 at a glance by looking at the temperature display, so that there is no possibility that the user may accidentally touch the heat generating plate 14 and get burned.

In this temperature display, the heating plate 14
The light emission amount of the heat-light conversion means 4 changes depending on the temperature of the heat plate 14, that is, if the heating plate 14 is at a high temperature, the light emission amount is large (bright)
If the temperature is low, the light emission amount is small (dark), so that the user can grasp the approximate temperature by this.

Further, in the temperature display of the iron, the user can more accurately grasp the temperature of the heat generating plate 14 by changing the color according to the temperature of the heat generating plate 14 as described above.

In the temperature display device 3, the temperature of the heating plate 14 itself can be displayed even after the power of the iron is turned off.
The temperature of the heating plate 14 after the power is turned off can be accurately grasped. Therefore, after the power is turned off, the heating plate 1
It is possible to surely prevent an accident such as touching 4 and getting burned.

FIG. 4 shows an example of an information processing apparatus provided with a temperature display device according to the present invention. In the figure, reference numeral 20 denotes a notebook personal computer (hereinafter, referred to as a personal computer) as an example of an information processing device, reference numeral 21 denotes a personal computer main body, and reference numeral 22 denotes a display unit.

A keyboard 23 for inputting characters, symbols, and the like is provided on the upper surface side of the personal computer main body 21, while an LCD for displaying an image is provided on the front of the display unit 22.
A (liquid crystal display panel) 24 is provided, and the display section 22 is configured to be foldable with respect to the personal computer body 21.

The personal computer body 21 has a CPU as shown in FIG.
(Central processing unit) 25, hard disk device 26, memory (RAM) 27, keyboard controller 28, LC
A D controller 29 and the like are incorporated therein. In addition, a floppy disk drive device, a CD-ROM drive device, a modem device, and the like are incorporated in the personal computer main body 21 as necessary, or are connected from the outside.

In this notebook personal computer 20, a CPU
Reference numeral 25 denotes a heat-generating electronic component that generates heat when driven. The temperature display device 3 according to the present invention is built in the personal computer main body 21 to display the heat generation state of the CPU 25.

That is, as shown in FIG. 5, inside the personal computer body 21, the heat-light conversion means 4 is tightly fixed on the CPU 25 which is the heat-generating portion 2, and the heat-light conversion means 4
Thus, the heat of the CPU 25 is converted into light, and the light is emitted from the display unit 6 exposed on the upper surface side of the personal computer main body 21 through the light guide tube 5 to perform temperature display.

By looking at the temperature display, the user can confirm the heat generation state of the CPU 25 at a glance from the outside, that is, can accurately grasp the drive state of the CPU 25.

In this temperature display, the CPU 25
The light emission amount of the heat-light conversion means 4 changes depending on the temperature, that is, the light emission amount is large when the CPU 25 is high temperature, and small when the CPU 25 is low temperature, so that the user can grasp the approximate temperature.

Further, in the display of the temperature of the CPU, by changing the color according to the temperature of the CPU 25 as described above, the user can more accurately grasp the temperature of the CPU 25.

As described above, the temperature display device according to the present invention is applied to an iron and a notebook type personal computer. However, the present invention is also applicable to a wide range of other electric devices having a heating section, such as a soldering iron and an oven toaster. Applicable.

[0037]

As is clear from the above description, in the temperature display device of the present invention, the temperature of the heat generating portion itself is directly displayed, so that the user can accurately grasp the heat generating state of the heat generating portion by looking at this display. can do. By providing the temperature display device in an electric device such as an iron, for example, it is possible to reliably prevent an accident in which the user accidentally touches the heat generating portion and burns. If this temperature display device is provided in an information processing device,
Can be checked at a glance from the outside.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of a temperature display device according to the present invention.

FIG. 2 is a diagram showing another example of the configuration.

FIG. 3 is a partially cutaway side view showing an iron as an example of an electric apparatus provided with the temperature display device according to the present invention.

FIG. 4 is a perspective view showing a notebook personal computer as an example of an information processing apparatus provided with the temperature display device according to the present invention.

FIG. 5 is a side view partially cut away.

FIG. 6 is an internal configuration diagram of the notebook computer.

[Explanation of symbols]

2 heating part, 3 temperature display device, 4 heat-light conversion means, 5 light guide tube, 6 display unit, 10 iron (electrical equipment), 14 heating plate (heat generation) ), 20 ‥‥ notebook PC (information processing equipment), 25 ‥‥ CPU (heating unit)

Claims (6)

[Claims] 1. A temperature display device for displaying a temperature of a heat generating part, wherein a heat light converting means for converting heat into light is connected to the heat generating part, and the light generated by the heat light converting means is guided to the outside to indicate the temperature. A temperature display device having a structure for displaying. 2. The temperature display device according to claim 1, wherein said heat-light conversion means changes a color in accordance with a temperature of said heat-generating portion for display. 3. An electric apparatus comprising a temperature display device for displaying a temperature of a heat generating portion, wherein the heat generating portion in the temperature display device is connected to a heat-light converting means for converting heat into light. An electric device having a structure for displaying light by guiding light by means to the outside. 4. The electric apparatus according to claim 3, wherein in the temperature display device, the heat-light conversion means changes a color in accordance with a temperature of the heat-generating portion for display. 5. An information processing device comprising a temperature display device for displaying a temperature of a CPU provided inside the device, wherein the temperature display device is connected to a heat-light converter for converting heat into light. An information processing apparatus having a structure in which light from the thermo-light conversion means is guided to the outside to display a temperature. 6. The information processing apparatus according to claim 5, wherein in the temperature display device, the heat-light conversion unit changes a color according to a temperature of the CPU and displays the color.