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JPH06113383

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPH06113383
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a
rechargeable battery and a charging terminal electrode for connecting the rechargeable battery
to a charger, the charging terminal electrode being a terminal of the charger. The present
invention relates to a rechargeable microphone configured to charge the rechargeable battery by
bringing the rechargeable battery into contact with an electrode.
[0002]
2. Description of the Related Art As shown in FIG. 5 as a rechargeable microphone, it has a sound
pickup portion 101 and a main body portion (grip portion) 102, and a rechargeable battery 103
is provided in the main body portion 102, and It is known that positive and negative charging
terminal electrodes 104 and 105 are provided at the central portion and the peripheral portion
of the lower end surface of the lower end face 102, respectively. When the tip end side of the
main body portion 102 is fitted to the microphone fitting portion 107 provided on the top
surface of the charger 106, pluses provided on the central portion and the peripheral portion of
the microphone fitting portion 107 The negative terminal electrodes 108 and 109 are in contact
with positive and negative charging terminal electrodes 104 and 105 provided on the lower end
face of the main body 102, and are held in a so-called upright state on the charger 105 to It is
possible to do. Note that at least one of the terminal electrodes for charging provided on the
peripheral portion of the main body portion 102 or the microphone fitting portion 107 is formed
in a ring shape.
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[0003]
In the conventional example, terminal electrodes 104 and 105 for charging plus and minus are
provided at the central part and the peripheral part of the tip end surface of the main body part
102, while the central part and the peripheral part of the microphone fitting part 107 of the
charger 106 are added. And the negative terminal electrodes 108 and 109 are provided, and at
least one of the terminal electrodes provided on the peripheral portion of the main body portion
102 or the microphone fitting portion 107 is formed in a ring shape. The positive and negative
charging terminal electrodes of the main body portion 102 and the positive and negative
terminal electrodes of the microphone fitting portion 107 can be reliably brought into contact
regardless of the relative rotation angle of .
[0004]
By the way, in the above-mentioned conventional rechargeable microphone, due to the nature of
providing plus and minus terminal electrodes 104 and 105 on the central part and the peripheral
part of the lower end face of the main body 102, respectively In the light transmitting type
microphone configured to transmit an audio signal using infrared rays instead of radio waves,
when infrared ray transmitting means is provided on the lower end face of the main body portion
102, a charging terminal is provided on the central portion of the lower end face. It becomes
difficult to provide an electrode, and therefore, regardless of the rotation angle of the main body
portion 102 with respect to the microphone fitting portion 107 of the charger 106, the terminal
electrodes of the main body portion 102 and the microphone fitting portion 107 are reliably
contacted. There was a problem that it became difficult.
[0005]
The present invention solves the above-mentioned conventional problems, and even in a
rechargeable microphone provided with an infrared transmitting means on the lower end face of
the main body 102, regardless of the rotation angle of the main body 102 with respect to the
microphone fitting portion 107 of the charger 106. The object of the present invention is to
provide a rechargeable microphone capable of always bringing the main body 102 into contact
with the terminal electrodes of the microphone fitting portion 107.
[0006]
According to the first aspect of the present invention, three or more terminal electrodes for
charging the rechargeable battery are arranged at predetermined intervals in the circumferential
direction of the main body, and three or more of them are arranged. Of two or more of the three
or more terminal electrodes between the terminal electrode for charging the battery and the
positive or negative electrode of the rechargeable battery, the two charging electrode contacts
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2
the positive or negative terminal electrode of the charger. A bridge circuit is provided to connect
the terminal electrodes of the first and second electrodes to the positive and negative electrodes
of the rechargeable battery.
[0007]
According to the second aspect of the present invention, three or more terminal electrodes for
charging are arranged in a ring shape at the peripheral edge of the lower end face of the main
body.
[0008]
According to the invention of claim 3, a rubber ring is provided on the peripheral surface of the
lower end portion of the main body portion to be closely fitted to the microphone fitting portion
of the charger.
[0009]
In the rechargeable microphone according to claim 1, any two of the three or more charging
terminal electrodes arranged in the circumferential direction of the main body are positive or
negative of the charger. When in contact with the terminal electrodes, these terminal electrodes
are connected to the charging terminal electrodes of the rechargeable battery by the bridge
circuit.
[0010]
In the rechargeable microphone according to claim 2, since the terminal electrode for charging
the rechargeable battery is disposed at the peripheral edge of the lower end face of the main
body, the infrared transmitting means is provided at the center of the lower end face of the main
body. Becomes possible.
[0011]
In the rechargeable microphone according to claim 3, the rechargeable microphone can be
erected on the charger without any irregularities by closely fitting the rubber ring provided on
the peripheral surface of the main body to the microphone fitting portion of the charger. be able
to.
[0012]
DESCRIPTION OF THE PREFERRED EMBODIMENT The present invention will now be described
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with reference to FIGS.
[0013]
Reference numeral 1 denotes a chargeable microphone configured as a so-called infrared
cordless microphone configured to transmit using infrared light (light) instead of radio waves,
and the microphone 1 includes a sound collection unit 2 and a main unit (grip unit 3), the main
body 3 includes the rechargeable battery 4, the terminal electrodes 5 for charging the
rechargeable battery 4, and the terminal electrodes 5 and 5 and the plus of the rechargeable
battery 4 described above. A bridge circuit 6 interposed between the negative and positive
electrodes, a modulation means 7 for performing predetermined modulation processing on the
audio signal input to the sound collection unit 2, and a modulation signal obtained by the
modulation means 7 And an infrared transmitting means 8 for transmitting and outputting as an
infrared signal.
[0014]
The infrared ray transmitting means 8 is formed by assembling an LED light emitting element or
a gyro mirror mechanism (not shown) into a substantially hemispherical cover 9 and is attached
to the lower end face of the main body 3.
[0015]
The reason why the infrared transmitting means 8 is provided on the lower end face of the main
body 3 is that the lower end face of the main body 3 has the least risk of being covered by the
hand when the user carries the microphone. This is because there is little risk that the user's
body, etc. will be shaded and the infrared ray transmission will be cut off because it comes to a
position away from the body.
[0016]
The rechargeable battery 4 uses a Ni-cd battery for quick charge with a capacity of 1600 mAh.
Since this battery is designed not to cause overcharging due to self-saturation when charging
with a current of about 0.1 c, this simplifies the configuration of the charging constant current
circuit.
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[0017]
Further, as shown in FIG. 2, the terminal electrodes 5 for charging the rechargeable battery 4 are
approximately 120 ° around the periphery of the lower end face of the main body 3, that is, the
outer peripheral part of the cover 9 of the infrared ray transmitting means 8. The three charging
terminal electrodes 5... 5 are insulated by the insulating gap members 10.
[0018]
The three charging terminal electrodes 5... 5 are connected to the plus / minus electrodes of the
rechargeable battery 4 via the bridge circuit 6.
[0019]
As shown in FIG. 3, the bridge circuit 6 is configured by connecting the three charging terminal
electrodes 5... 5 for charging with rectifying elements 11 and 12 having different polarities.
[0020]
When the plus / minus terminal electrodes of the charger described next come in contact with
any two of the three charging terminal electrodes 5... 5, the terminal electrodes of these chargers
and the rechargeable battery The four plus and minus electrodes are connected by the bridge
circuit 6.
[0021]
Next, the charger 21 will be described.
[0022]
As shown in FIG. 1, the charger 21 is formed in a rectangular shape, and on the top surface
thereof, microphone fitting portions 22, 22 for fitting the lower end side of the rechargeable
microphone 1 are provided.
[0023]
The microphone fitting portions 22 and 22 are formed in a cylindrical shape according to the
shapes of the main body portion 3 of the rechargeable microphone 1 and the cover 9 of the
infrared ray transmitting means 8, and ring-shaped convex portions are formed on the inner
peripheral surface thereof. A (microphone placement unit) 23 is provided.
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[0024]
Then, when the lower surface side of the main body portion 3 of the rechargeable microphone 1
is inserted into the microphone fitting portion 22, as shown in FIG. 4, the cover of the infrared
transmitting means 8 is placed on the upper surface of the ring-shaped convex portion 23. Three
charging terminal electrodes 5... 5 provided on the outer periphery of 9 are brought into contact
and placed, and the rechargeable microphone 1 is held in a vertically standing state.
[0025]
A pair of terminal electrodes 24 and 25 project from the upper surface of the ring-shaped convex
portion 23.
[0026]
The pair of terminal electrodes 24 and 25 are arranged with a phase of approximately 180 °
and can be moved up and down, and three charging terminal electrodes 5... 5 are placed on the
upper surface of the convex portion 22 Then, two of them are in contact with the pair of terminal
electrodes 24 and 25 without fail.
[0027]
The tip of the terminal electrodes 24 and 25 is branched into two contacts 26 and 27 as shown
in FIG. 1, and the terminal electrode 24 is placed in the gap 11 between the terminal electrodes 5
for charging 5. , 25 are positioned, one of the two contacts 26 and 27 is always in contact with
one of the charging terminal electrodes 5.
[0028]
Further, a rubber ring 31 is provided on the peripheral surface on the lower end side of the main
body 3 of the rechargeable microphone 1.
[0029]
Then, when the lower end side of the main body portion 3 of the rechargeable microphone 1 is
fitted to the microphone fitting portion 21, the rubber ring 31 is in close contact with the inner
circumferential surface of the microphone fitting portion 21 to make the rechargeable
microphone 1 It is possible to stand on the charger 21 without rattling.
[0030]
Since the rechargeable microphone 1 of the embodiment is configured as described above, when
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the rechargeable microphone 1 is placed on the charger 21, the charger 21 and the rechargeable
battery 4 of the rechargeable microphone 1 are automatically connected, The rechargeable
battery 4 can be charged.
[0031]
In the embodiment, the case where the charging terminal electrodes 5... 5 are formed in a ring
divided into three is shown, but may be divided into four or more.
[0032]
The rechargeable microphone of the present invention has the following advantages.
[0033]
(1)By arranging three or more charging terminal electrodes in a ring shape and bringing any two
of the three or more charging terminal electrodes into contact with the terminal electrodes of the
charger, the rechargeable battery and the charging can be performed. Can be connected.
[0034]
(2)Since the terminal electrode for charging is disposed at the peripheral edge of the lower end
face of the main body, it is possible to provide an infrared transmitting means or the like at the
center of the lower end face of the main body.
[0035]
(3)A rubber ring is provided on the peripheral surface on the tip end side of the main body, and
the rubber ring is tightly attached to the microphone fitting portion 21 of the charger, so that the
rechargeable microphone is attached to the charger without rattling Can.
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