JPH11304597A - Electronic clinical thermometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a multi-function compact electronic clinical thermometer by controlling the frequency and waveform of an input signal of a vibration actuator and generating sound, the operating sound of a buzzer, or sensible vibrations to the outside. SOLUTION: A stepped part 17 is provided at the damper peripheral part 11 of the vibration actuator of an electronic clinical thermometer, and a coil 10 is fitted into and adhered to the stepped part 17. When a signal of single frequency of approximately 80 Hz is inputted to the coil 10, the coil 10 and a magnetic circuit are relatively vibrated in synchronization with the input frequency. When a signal of single frequency of approximately 2 kHz is inputted to the coil 10, the coil 10 and the magnetic circuit are vibrated in synchronization with the input frequency, and the vibrations are transmitted to a housing 5 to be heard as the operating sound of a buzzer. When a sound signal of approximately a few hundreds to a few thousands hertz is inputted to the coil 10, the housing 5 becomes a diaphragm and outputs sound like a speaker. Temperature and e present state of output are displayed on a display window. By this, it becomes possible to signal the completion of temperature detection of the electronic clinical thermometer by the selection of the vibration actuator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic clinical thermometer, and more particularly, to an electronic clinical thermometer using a vibration actuator that generates sound, operation sound of a buzzer, vibration and the like.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional electronic thermometer. In the conventional electronic thermometer 30, the power can be turned on by the power switch 37 and the temperature can be measured. After a certain period of time, the operation sound of the buzzer 33 is emitted to notify that the temperature measurement has been completed, and the body temperature is displayed on the display window 36.

[0003]

However, if only the operation sound of the buzzer is emitted, for example, when the temperature is measured during heavy clothing in winter, the sound cannot be heard or when a plurality of persons measure the temperature at the same time. However, there is a problem that the operation sound of the buzzer emitted from the electronic thermometer of another person is mistaken for the sound of the user's own and the thermometer is accidentally removed.

[0004] Further, if an attempt is made to add an output function such as vibration to the electronic thermometer other than the operation sound of the buzzer, separate actuators must be incorporated, which leads to an increase in cost or an increase in size. was there.

Further, the electronic thermometer must have a hermetic structure in order to protect the inside of the electronic thermometer from moisture such as sweat from the nature of its use, and the operating volume of the buzzer output to the outside is low. There was a problem that would be.

Accordingly, the present invention has a multi-function of emitting a sufficiently large volume that can be heard even in a sealed structure, and selecting from a plurality of output means such as vibrations and voices to notify the completion of the temperature measurement, which leads to an increase in cost. It is an object of the present invention to provide a compact electronic thermometer without using the same.

[0007]

SUMMARY OF THE INVENTION The present invention relates to an electronic thermometer using a vibration actuator that generates vibration by converting electric energy into mechanical energy, wherein the vibration actuator comprises a frequency and a waveform of an electric input signal. Is an electronic thermometer having a multifunctional vibration actuator capable of generating a sound, a buzzer operation sound, or a sensible vibration to the outside through a housing by controlling the vibration.

Further, in the electronic thermometer of the present invention, the vibration actuator has the damper at the center of the magnetic circuit such that the coil attached to the outer periphery of the damper is located in the gap of the magnetic circuit including the permanent magnet and the yoke. It is characterized in that the magnetic circuit is fixedly supported, the magnetic circuit is supported on the support via a buffer material, and the support is mounted on the vibrating part.

[0009]

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

FIG. 1 is a diagram showing an electronic thermometer according to an embodiment of the present invention. FIG. 2 is a partial sectional perspective view showing the structure of the vibration actuator. FIG. 3 is a sectional view showing details of the vibration actuator.

The vibration actuator shown in FIGS. 2 and 3 has a configuration as shown in Japanese Patent Application No. 8-324997 (payer vibration actuator).

In FIG. 1, a vibration actuator 1 is fixed in a case of an electronic thermometer 25. The power switch 27 is capable of turning on and off the power for temperature detection and selecting a notification means by the vibration actuator 1. That is, the completion of the temperature measurement is determined by setting the operation of the vibration actuator 1 to output a sound, sound a buzzer, or vibrate the electronic thermometer 25 itself. Can be.

Next, regarding the vibration actuator 1,
This will be described with reference to FIGS. The magnetic circuit of the vibration actuator 1 used for the electronic thermometer 25 is configured so that the yoke 6 and the plate 8 sandwich the disk-shaped permanent magnet 7, and the center shaft 9 is fitted at the center. The center shaft 9 is shaped like a bolt and penetrates a center hole in the center of the damper 12. That is, the magnetic circuit and the damper 12 are positioned coaxially by the center shaft 9.

The damper outer peripheral portion 11 is provided with a step 17 concentrically with the center hole. The coil 10 is fitted into and bonded to the step 17. Coil 10
Is incorporated in a gap of the magnetic circuit, that is, in a space where the magnetic flux density is large, while being positioned concentrically with the magnetic circuit.

The outer peripheral portion 11 of the damper is adhered to the support 14. In this case, it is effective to arrange an elastic material between the support base 14 and the damper outer peripheral portion 11.

A plurality of claw-like projections 1 are provided on the outer edge of the support base 14.
5, and the claw-like projection 15 has a flexible support rubber 16.
Is attached. The support rubber 16 is attached so that the magnetic circuit does not separate from the support base 14 and flexibly supports the magnetic circuit. The support rubber 1
6 may not be required to be attached by adjusting the elasticity of the damper 12, and in that case, the claw-like projection 15 is not required.

The cushioning material 13 is provided for the yoke 6 of the magnetic circuit.
Between the magnetic circuit and the support 14 so as to suppress the occurrence of unnecessary sound by directly colliding with the support 14.
Glued to the side.

Now, when a signal of a single frequency of about 80 Hz is input to the coil 10, the coil 10 in the gap of the magnetic circuit follows the Fleming's left-hand rule, and the coil 10 and the magnetic circuit synchronize with the input frequency. Vibrates relatively.
This vibration is transmitted to the outside via the housing 5.

Next, when a signal of a single frequency of about 2 kHz is input to the coil 10, the coil 10 and the magnetic circuit similarly vibrate relatively in synchronization with the input frequency, and the vibration is applied to the housing 5. It is transmitted as a human audible frequency and is heard as a buzzer operation sound.

Further, the coil 10 has a frequency of several hundred Hz to several thousand H.
When an audio signal of z is input, the housing 5 becomes a diaphragm, and outputs audio in the same manner as a normal speaker. The display window 26 of the electronic thermometer 25 displays the temperature and what type of output state is currently being displayed. Electronic thermometer 2
The output notification of the completion of the temperature detection of 5 can be selected by the vibration actuator 1 from the sound, the operating sound of the buzzer, and the vibration. In other words, when using the electronic thermometer 25 in an environment where the buzzer operation sound is difficult to hear, or when a person with hearing impairment uses it, the output of vibration is used, and the unconscious person or another person assists. When used for a person who measures the temperature, an output mode can be selected according to the situation, such as outputting an operation sound of a buzzer. Further, a plurality of melodies can be output as voice, which is useful for temperature measurement of infants and the like.

Since the electronic thermometer according to the present invention has a structure in which the housing is vibrated by the vibration actuator to be mounted, the completion of the temperature measurement can be notified by voice, operating sound of the buzzer, or sensible vibration without increasing the number of parts. In addition to having multiple functions that can be selected from output forms such as the above, it is possible to realize a small size and low cost. In addition, the electronic thermometer according to the present invention does not require a hole for transmitting a notification sound to the outside, and not only can protect the inside of the electronic thermometer from moisture such as sweat, but also the hygiene by providing the hole. There is no need to worry about the problem.

[0022]

As described above, according to the present invention, an electronic thermometer in which a vibration actuator in which a sound, an operation sound of a buzzer, vibration, and the like are output is provided in a housing is provided. This makes it possible to obtain an electronic thermometer that is low-cost, compact, and capable of outputting the notification output of the completion of temperature detection as voice, operating sound of buzzer, sensible vibration, etc., and whose volume is large enough to be heard even in a sealed structure. Can be

[Brief description of the drawings]

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

FIG. 2 is a partial cross-sectional perspective view showing the structure of a vibration actuator.

FIG. 3 is a sectional view showing details of a vibration actuator.

FIG. 4 is a diagram showing a conventional electronic thermometer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration actuator 5 Housing 6 Yoke 7 Permanent magnet 8 Plate 9 Center axis 10 Coil 11 Damper outer peripheral part 12 Damper 13 Buffer material 14 Support stand 15 Claw-like projection 16 Support rubber 17 Step part 25 Electronic thermometer 26 Display window 27 Power switch 30 Conventional electronic thermometer 33 Buzzer 36 Display window 37 Power switch

Claims (2)

[Claims] An electronic thermometer using a vibration actuator that generates vibration by converting electric energy into mechanical energy, wherein the vibration actuator controls a frequency and a waveform of an electric input signal to form a housing. An electronic thermometer, which is a multifunctional vibration actuator that generates a sound, a buzzer operation sound, or a sensible vibration to the outside through a body. 2. The vibration actuator fixedly supports the damper at a center portion of the magnetic circuit so that a coil attached to an outer peripheral portion of the damper is located in a gap of the magnetic circuit including a permanent magnet and a yoke, 2. The electronic thermometer according to claim 1, wherein the magnetic circuit is supported on a support via a buffer, and the support is mounted on a vibrating portion.