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JPH09173977

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DESCRIPTION JPH09173977
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
vibration generator for detecting external information, such as radio wave reception sensing, to a
human body, which is generated by a combination of an electromagnet and a permanent magnet.
[0002]
2. Description of the Related Art Conventionally, there are two methods for receiving and
detecting external information such as radio waves: one with sound and one with vibration, and
the other with sound is a high-frequency sound such as a piezoelectric buzzer. It is being
annoyed for reasons such as giving trouble to others. Also, the only thing to be notified by
vibration was that by the Pejer motor with a weight attached to the end of the motor shaft, and
there was only one type of vibration.
[0003]
[Problems to be solved by the invention] a. The method of informing by sound as a reception
detection method of radio waves causes inconvenience to others. ロ. There is a problem in the
durability that the bearing part of the motor is apt to be easily worn if a method of informing by
vibration as a method of reception detection of radio waves, that is, if a peger motor is used. ハ.
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I can not change the frequency. ニ. Noise is likely to occur. ホ. There are many parts. The
present invention was made to solve the above-mentioned drawbacks.
[0004]
Means for Solving the Problems An electrically conductive wire (2) is wound around a
ferromagnetic core (1) to form an electromagnet. A permanent magnet (4) is placed in a
nonmagnetic container (3), and a nonmagnetic diaphragm (5) is attached to the top and bottom
in the vicinity of the magnetic pole of the electromagnet. The switch is turned on by catching
radio waves and other external information, and at the same time the N, S conversion circuit of
the electromagnet is activated to generate vibration. The present invention is a microminiature
vibration generating device which is a combination of an electromagnet and a permanent magnet
having the above construction.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION When using the present invention, this device
alone or in a portable telephone or pager can catch external information such as radio waves by
simply placing it in a portable telephone or pager, and detect the reception of vibration. It is
something to convey in form.
[0006]
EXAMPLES Examples of the present invention will be described below.
(A) A conductive wire (2) coated with urethane or varnish on the ferromagnetic core (1) is wound
to form an electromagnet. (B) A permanent magnet (4) is placed in a container (3) made of a
nonmagnetic material such as plastic, and a nonmagnetic diaphragm (5) is provided above and
below it. (C) Place the container containing the permanent magnet near the magnetic pole of the
electromagnet. (D) Install the present invention alone or in a portable telephone or pager. (E) A
circuit is incorporated in which the switch is turned on by simultaneously catching radio waves
and other external information, and at the same time the N and S poles of the electromagnet are
converted. (F) When a control signal is input to the oscillation circuit (6), pulse signals whose
phases are shifted in the A phase (9) and the B phase (10) are alternately turned ON and OFF in a
fixed cycle. Non-magnetic container (3) holding the permanent magnet (4), since the S pole is
attracted to the S pole of the N pole electromagnet of the permanent magnet (4) when the A
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phase is turned on, conversely the S pole is attracted to the N pole The permanent magnet (4)
strikes the vibration plate (5) received from the top and bottom of the frame to generate
vibration. See (Figure 7). When the B phase is turned on, the magnetic pole of the electromagnet
is reversed as in the case where the A phase is turned on (FIG. 8). As described above, while the
control signal is being input to the transmission circuit (6), the pulse signals of the A phase (9)
and the B phase (10) are alternately turned ON and OFF in a constant cycle. With the conversion
of the S pole, the N and S poles of the permanent magnet (4) are attracted to the S and N poles of
the electromagnet, hit against the diaphragm (5) and continue to vibrate. (G) When the control
signal input to the transmission circuit (6) is turned off, the pulse signals of A phase (9) and B
phase (10) are also stopped, and no magnetic lines of force are generated in the electromagnet.
Becomes stationary and does not vibrate. The present invention is a microminiature vibration
generating device which is a combination of an electromagnet and a permanent magnet having
the above construction. When using the present invention, it is switched on by catching radio
waves and other external information simply by placing it alone or by placing it in a portable
telephone or pager, and simultaneously turning on the N, S conversion circuit of the
electromagnet. Operates to generate vibration. In addition, the present invention can catch
various signals, convert the N and S poles of the electromagnet, and use the vibration generated
to attract the N and S poles of the permanent magnet. Widely used in fields where it is necessary
to make information
[0007]
According to the present invention, external information is caught and transmitted in the form of
vibrations, such as reception sensing of radio waves, without causing troubles to others
compared to those transmitted by sound. In addition, compared with the Pejar motor that
transmits vibration, it is not only durable but less likely to generate noise, can not only change
the frequency, but is superior in terms of fewer parts.
[0008]
Brief description of the drawings
[0009]
FIG. 1 is an exploded perspective view of the present invention.
[0010]
FIG. 2 is a plan view of the present invention.
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[0011]
FIG. 3 is a front view of the present invention.
[0012]
4 is a cross-sectional view taken along the line AA 'in FIG.
[0013]
5 is a vibration generating circuit diagram of the present invention.
[0014]
6 is a diagram of a control signal and a pulse signal of the present invention.
[0015]
FIG. 7 is a mechanism diagram for vibration generation of the present invention.
(A phase ON)
[0016]
FIG. 8 is a mechanism diagram for vibration generation of the present invention.
(When B phase is ON)
[0017]
Explanation of sign
[0018]
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DESCRIPTION OF SYMBOLS 1 Ferromagnetic core 2 Conductivity good wire 3 Nonmagnetic
container 4 Permanent magnet 5 Diaphragm 6 Oscillation circuit 7 Vibration generator 8 Circuit
voltage 9 A phase 10 B phase
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