JP3046612U - Electronic thermometer - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an electronic thermometer in which the temperature display can be easily recognized even in an environment where external light is scarce such as at night. SOLUTION: A temperature sensor 2, a temperature detecting unit 3, a display panel 4, a light emitting unit 5, a switch 6, a battery 7, and the like are housed in an electronic thermometer 1 having a substantially cylindrical shape as a whole. The light emitting unit 5 irradiates the display panel 4 with light, and the switch 6 turns on and off the power supply from the battery 7 to the light emitting unit 5.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an electronic thermometer.

[0002]

[Prior art]

 Conventionally, a thermometer configured by enclosing a measurement medium such as mercury or alcohol in a thin cylindrical glass has been used. In recent years, instead of this conventional thermometer, an electronic thermometer that measures body temperature using a temperature sensor and an electronic circuit has been proposed. This type of electronic thermometer can be made of a plastic sheath, so it is less susceptible to damage than conventional types, and it has high safety because there is no outflow of the measurement medium in the event of damage. Therefore, it is widely used.

By the way, in this electronic thermometer, the above-mentioned electronic circuit or the like is usually driven by electric power from a power source such as a button-type battery built in the main body, and the measured temperature is displayed on a display unit. I have. As a display unit, a liquid crystal display (LCD) is generally used.

[0004]

[Problems to be solved by the invention]

 However, in the case of an electronic clinical thermometer having a display unit composed of an LCD as described above, the display on the display unit is visually recognized by reflection of external light. For this reason, in an environment where the outside light is poor, such as at night, the display unit becomes difficult to visually recognize, and it is necessary to separately turn on illumination to see the display panel.

[0005] An object of the present invention is to provide an electronic thermometer in which the temperature display can be easily recognized even in an environment where external light is poor, such as at night.

[0006]

[Means for Solving the Problems]

 An electronic clinical thermometer according to the present invention is an electronic clinical thermometer that displays a measured body temperature on a display unit, and a light emitting unit that irradiates the display unit with light, and a switch unit that turns on and off power supply to the light emitting unit. And characterized by having:

In a preferred embodiment, the display is an LCD. Further, the light emitting unit is configured by, for example, a light bulb, a light emitting diode (LED), or a surface light emitting element (Electro Luminescence; EL).

In other words, in the present invention, a light-emitting unit for irradiating light to the display unit in the electronic thermometer is provided, and the power supply to the light-emitting unit is controlled by turning on and off the switch unit, so that it can be used at night or the like. When external light is scarce, light is supplied to the display unit so that the display unit can be easily viewed.

[0009]

[Embodiment of the invention]

 Hereinafter, an electronic thermometer according to an embodiment of the present invention will be described with reference to the accompanying drawings. 1 and 2 show the configuration of the electronic thermometer according to the embodiment. The electronic thermometer 1 has a substantially cylindrical shape as a whole. Further, a temperature sensor 2, a temperature detecting unit 3, a display panel 4, a light emitting unit 5, a switch 6, a battery 7, and the like are accommodated therein.

The temperature sensor 2 is provided on the left side of the electronic thermometer 1 in FIGS. 1 and 2 and outputs a signal having a magnitude corresponding to the temperature to the temperature detection unit 3. The temperature detector 3 outputs to the display panel 4 to display a body temperature corresponding to the signal from the temperature sensor 3. The temperature detection unit 3 is configured by a known electronic circuit.

The display panel 4 is composed of, for example, an LCD. Then, based on the signal output from the temperature detector 3, the corresponding body temperature is displayed.

Here, the light emitting unit 5 is used as a backlight of the display panel 4. More specifically, the light emitting device can be formed using appropriate light emitting elements or light emitting members such as small light bulbs, LEDs, and ELs. Is particularly preferred.

The switch 6 is provided at a position slightly distant on the right side in the drawing of the display panel. And it is comprised from the pressing part 61, the spring part 62, the contact part 63, etc. The pressing part 61 is a button-shaped member operated by the user of the electronic thermometer 1. The pressing portion 61 is urged upward by a spring portion 62 in FIG. The contact portion 63 includes a pair of contacts. One contact is held at the lower end of the spring portion 7 in FIG. 2, and the other contact is held under the spring portion 7 by a predetermined distance.

Here, for example, the switch 6 can appropriately use one of the following two types, but is not limited to these types, and an appropriate type can be used. The first type is a type that is normally in an off state, turns on when pressed, and returns off when released. The second type is a type in which pressing once from the off state turns on the state, and pressing again once again turns the state off again.

The battery 7 is a button type in the illustrated example, and is housed in the illustrated case.

Although illustration is omitted, power is supplied from the battery 7 to the temperature detection unit 3 and the display panel 4 via wiring (not shown). In addition, the temperature detector 3 and the display panel 4 may be configured to be supplied with power by a battery (not shown) different from the battery 7.

The electronic thermometer 1 of the embodiment having the above configuration is used with the switch 6 turned off when used in an environment where sufficient external light can be obtained, such as in the daytime. On the other hand, when viewing the display on the display panel 2 in an environment where almost no external light can be obtained, such as at night, the switch 6 is turned on. Then, the display panel 4 can be easily recognized by the light illumination from the light emitting unit 3, and the body temperature display can be confirmed.

Although the embodiments of the present invention have been described above, the present invention can be implemented in various forms other than the above embodiments. For example, the switch section is provided on the surface of the main body beside the display panel.

[0019]

[Effect of the invention]

 ADVANTAGE OF THE INVENTION According to this invention comprised as mentioned above, even if it is an environment where external light is poor, such as nighttime, it can provide the electronic thermometer which is easy to visually recognize a temperature display.

[Brief description of the drawings]

FIG. 1 is a plan view showing an appearance of an electronic thermometer according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an internal configuration of the electronic thermometer of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic thermometer 2 Temperature sensor 3 Temperature detection part 4 Display panel 5 Light emission part 6 Switch 7 Battery

Claims (3)

[Utility model registration claims] 1. An electronic thermometer for displaying a measured body temperature on a display unit, comprising: a light emitting unit for irradiating the display unit with light; and a switch unit for turning on and off power supply to the light emitting unit. An electronic clinical thermometer characterized by being made. 2. The electronic thermometer according to claim 1, wherein said display unit is a liquid crystal display device. 3. The electronic thermometer according to claim 1, wherein the light emitting section is configured by a light bulb, a light emitting diode, or a surface light emitting element.