JP2000124981A - Hands free telephone system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a 'hands free telephone system' which can suppress generation of waste and can surely be used even at a place where there is no charging facility. SOLUTION: A power generation rotor 38 is rotated by a coil spring 36 and a rotor rotation increase gear 37 and a current is generated in a power generation coil 39 by electromagnetic induction by composing a can-like casing 1 of a hands free telephone system with an upper casing 32 and a lower casing 33 and manually rotating the lower casing 33 to the upper casing 32. This current is accumulated in a secondary battery 41 such as a capacitor through a rectifier circuit 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hands-free telephone system for use in vehicles, homes, and the like, using a general-purpose portable telephone, and more particularly to a hands-free telephone system which can be used anytime and anywhere without fail. About.

[0002]

2. Description of the Related Art In recent years, automobile telephones have become extremely popular, and in addition to conventional handset telephones, hands-free telephones have been developed in order to avoid one-handed driving during the operation of the handset.

[0003] In this case, since a car-dedicated telephone cannot be used once the user leaves the car, a conventional general-purpose portable telephone is configured to be connectable to a hands-free set telephone device, and can be used as a car telephone while traveling. so,
There has also been proposed one that can be used as a mobile phone when leaving a car.

[0004]

By the way, in this kind of hands-free telephone device for a portable telephone, it is common to fix a hands-free set on a lid of a seat side box of a center console and set the portable telephone here. However, this makes the seat side box unusable.

Therefore, the applicant of the present application has previously proposed a simple hands-free telephone device in which a housing of a hands-free set is formed in a can shape and is set on a cup holder.

In this simple hands-free telephone device, a speaker, a microphone, a control circuit board, and a dry battery are provided in a can-shaped housing, and a portable telephone is inserted into the can-shaped housing, so that it can be carried anywhere. And can be installed anywhere. As dry batteries, primary batteries that cannot be reused once used up, and secondary batteries that can be reused by charging are used.

However, when the primary battery is used up, it cannot be reused, and must be treated and disposed of as waste. This is contrary to energy saving and may cause environmental problems. In addition, in the case of a secondary battery, such a problem is small because it can be reused by charging. However, a separate charger and power supply (such as a commercial power supply or a car battery by an electric power company) are required for charging, and there is no such facility. If the dry battery is exhausted in the place, it cannot be charged, so that the hands-free telephone device cannot be used.

[0008] The present invention has been made in view of such problems of the prior art, and can suppress generation of waste.
It is an object of the present invention to provide a hands-free telephone device that can be reliably used even in a place without charging facilities.

[0009]

In order to achieve the above object, a hands-free telephone device according to the present invention comprises a power generating means and a power storage for storing the power generated by the power generating means in a casing formed in a can shape. Means.

In the above-mentioned configuration, the housing comprises a first housing and a second housing rotatably supported by the first housing, and the second housing with respect to the first housing as the power generation means. What transforms the rotational movement of the housing into electricity can be employed. Further, the power generation means may be one that converts the acceleration motion applied to the housing into electricity.

The hands-free telephone device of the present invention is provided with a power generation means and a power storage means, and, for example, a part of the housing is rotated by hand or the like as needed before use or after the start of use, or the housing is free of charge. Electric power can be generated by reciprocating (vibrating) a part or the whole, and can be stored in the power storage means.

According to the present invention, since no dry battery is used, waste can be reduced, energy saving can be promoted, and environmental problems can be reduced. In addition, since facilities such as a charger and a power supply for charging are not separately required, the apparatus can be used even in a place without such facilities, and can be surely used anytime and anywhere. Accordingly, there is no need to prepare extra dry batteries in consideration of running out of batteries, and it is not necessary to use a commercial power supply or the like for charging. This can also promote energy saving.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a hands-free telephone system of the present invention, FIG. 2 is a perspective view showing an installation state of a hands-free telephone device of the present invention, and FIG. 3 is a block diagram showing a hands-free telephone system of the present invention.

The hands-free telephone device 10 of the present embodiment
Has a housing 1, which is specifically formed in a general-purpose can shape having a diameter of about 60 mm and a height of about 120 mm. The material of the housing 1 is not particularly limited, and can be formed of aluminum, steel, synthetic resin, or the like. In addition,
The numerical value of the size of the can shape described above is merely an example,
In short, any size may be used as long as the general-purpose mobile phone 20 can be inserted. In addition, a design such as a picture can be applied to the surface of the housing 1 to add a design effect.

The can housing 1 is provided with a telephone housing 2 for inserting and housing the mobile phone 20. Further, the can-shaped housing 1 is provided with a microphone 3 and a speaker 4 to be described later, and a control circuit board 8 for controlling transmission and reception of an audio signal between the built-in microphone 22 and the input / output terminal 21 of the built-in speaker 23 of the mobile phone 20. Have been. Then, as shown in FIG. 1, by inserting the plate-shaped control circuit board 8 into the can-shaped housing 1, the above-described telephone housing 2 is partitioned and formed in the can-shaped housing 1. ing. In the present invention, it is not necessary to form the control circuit board 8 in a plate shape, and it is not necessary to form the telephone housing 2 by the control circuit board 8.
Is formed in a plate-like shape, and the telephone housing portion 2 is formed in this manner, so that the control circuit board 8 exhibits a so-called backrest function of the mobile phone 20, which is a desirable configuration.

A microphone 3 and a speaker 4 are provided so as to be partially exposed on the surface of the can-shaped casing 1, in the embodiment shown in FIG.
The microphone 3 is for inputting a voice of a driver or the like in place of the built-in microphone 22 of the mobile phone 20.
As shown in FIG. 3, by connecting an earphone jack (harness) 7 provided on the control circuit board 8 to the input / output terminal 21 of the mobile phone 20, an audio signal input from the microphone 3 is transmitted to the control circuit 8 And transmitted from the input / output terminal 21 to the mobile phone 20 via the harness 7,
After being subjected to signal processing by a built-in control circuit (not shown) of the mobile phone 20, the signal is transmitted as a radio signal from the built-in antenna 24 to the communication partner side.

On the other hand, the speaker 4 outputs voice from the other party in place of the built-in speaker 23 of the mobile phone 20, and as shown in FIG.
By connecting the earphone jack (harness) 7 provided on the control circuit board 8 to the input / output terminal 21 of the mobile phone 20, the control circuit of the mobile phone 20 processes the audio radio signal received by the built-in antenna 24 from the other party. After being done,
The signal is output from the speaker 4 to the room via the input / output terminal 21, the harness 7, and the control circuit 8.

Further, in the hands-free telephone device 10 of the present embodiment, the lower part of the can-shaped housing 1 is a power supply unit 5,
A power ON / OFF switch 6 is provided on the surface of the can-shaped housing 1, in the embodiment shown in FIG.
Is provided.

The hands-free telephone device 10 of the present embodiment
Can be installed in the cup holder CH as shown in FIG. The cup holder CH includes not only one that is previously installed in the center console of an automobile, but also one that is retrofitted. The mounting position of the cup holder CH is not particularly limited, and may be anywhere such as a center console, a door side, or an upper surface of an instrument panel. Also, the hands-free telephone device 10 is connected to the cup holder C.
When it is installed in the H, it is desirable that the surface on which the microphone 3, the speaker 4 and the on / off switch 6 are provided is placed facing the driver.

When the portable telephone 20 is used as a hands-free device, the portable telephone 20 is inserted into the telephone housing 2, and the jack of the harness 7 is inserted into the input / output terminal 21 of the portable telephone 20. Thereby, the driver's voice is input from the microphone 3 and transmitted to the built-in control circuit of the mobile phone 20 via the control circuit 8, the harness 7, and the input / output terminal 21. Then, it is transmitted from the built-in antenna 24 as a sound wave.
On the other hand, the voice from the other party is received by the built-in antenna 24, processed by the built-in control circuit of the mobile phone 20, and then output from the speaker 4 to the room via the input / output terminal 21, the harness 7, and the control circuit 8. You. Thereby, the driver can talk on the phone without releasing the hand from the steering wheel.

In the hands-free telephone device 10 of the present embodiment having the above-described configuration, since the housing 1 is formed in a general-purpose can shape, as shown in FIG. It is very convenient because it can be installed without any difficulty. Also, since the can-shaped housing 1 has a function of accommodating the mobile phone 20, the mobile phone 20
Is very simple.

Moreover, since the microphone 3 as an input unit of the hands-free set and the speaker 4 as an output unit are provided in the housing 1, the microphone 3 and the speaker 4 are connected to the control circuit board 8. Harness is routed inside the housing 1 and is not exposed indoors. Further, the hands-free telephone device 10 can be freely moved anywhere.

Further, in the hands-free telephone device 10 of the present embodiment, only the microphone 3 and the speaker 4 are provided, and the transmission / reception circuit and the like of the portable telephone 20 are used, so that the hands-free telephone device 10 which is compact and inexpensive is provided. can do.

Here, a detailed configuration of the power supply section 5 for supplying power to various electronic components provided on the control circuit board 8 will be described with reference to FIG. FIG. 4 is a diagram showing a configuration near the power supply unit of the embodiment of the hands-free telephone device of the present invention,
(A) is a sectional view, and (B) is an external view. In the figure, a can-shaped housing 1 includes an upper housing (first housing) 32 in which the mobile phone 20 is stored and a lower housing (second housing) forming the power supply unit 5.
(Housing) 33. Upper housing 32 and lower housing 3
The overall shape of the can-shaped casing 1 is substantially the same as the outer shape of, for example, a 350 milliliter can.

The lower housing 33 is a substantially cylindrical upper housing 3.
2, the upper surface thereof is open to communicate with the upper housing 32, and the lower surface thereof is closed. Opposing portions of the upper part of the lower housing 33 and the lower part of the upper housing 32 have fitting portions 32a and 33 corresponding to each other.
a is formed, and the lower housing 3
By fitting the upper part of 3, the lower casing 33 is integrated with the upper casing 32 in a rotatable state.
Although not shown, these fitting portions 32a, 33a
Is provided with a ratchet mechanism, and the lower housing 33 is allowed to rotate in one direction with respect to the upper housing 32 (for example, the lower housing 33 is rotated clockwise with respect to the upper housing 32). Rotation in the opposite direction is not allowed.

A bottom wall 32 formed below the upper housing 32
Further, a coil spring (spring) 36 formed in a spiral shape is provided below b, and one end of the coil spring 36 is fixed to a fixing portion 36b of the inner wall of the upper housing 32, and the other end thereof. Is fixed to a shaft 36 a rotatably supported by the upper housing 32 or the lower housing 33. Shaft 36
A rotor rotation amplifying gear 37 is integrally fixed to a. On the other hand, a power generation rotor (gear) 38 that meshes with the rotor rotation amplifying gear 37 is rotatably supported inside the lower housing 33.

A power generating coil 39 is provided inside the lower housing 33 at a position corresponding to the power generating rotor 38, and the power generating coil 39 is provided near a bottom of the lower housing 33 via a rectifying circuit 40. It is connected to a secondary battery (a capacitor in this embodiment) 41. The plus terminal of the secondary battery 41 is connected to the power input terminal of the control circuit board 8 via wiring and the on / off switch 6, and the minus terminal of the secondary battery 41 is connected to the ground of the control circuit board 8 via wiring and the like. Connected to the pattern.

Thus, as shown in FIG. 4B, for example, the upper housing 32 of this hands-free telephone device
Is gripped with the left hand and the lower housing 33 is gripped with the right hand, and the lower housing 33 is rotated clockwise with respect to the upper housing 32, that is, in the direction in which the coil spring 36 is wound up. As a result, the shaft 36a rotates, the power generation rotor 38 is rotated via the rotor rotation amplifying gear 37, and a current flows through the power generation coil 39 by electromagnetic induction. This current is rectified by the rectifier circuit 40 and stored in the secondary battery 41.

By rotating the lower housing 33 a plurality of times with respect to the upper housing 32 to generate and charge a required amount of power,
This hands-free telephone device can be used. When the stored power is used up, or as necessary, the lower housing 33 is rotated relative to the upper housing 32 in the same manner as described above to charge the battery, and the battery can be used similarly. The upper housing 32 and the lower housing 3
Since a ratchet mechanism is interposed between the upper casing 32 and the upper casing 32,
Alternatively, the lower housing 33 does not rotate.

The hands-free telephone device of the present embodiment can be charged by rotating the lower housing 33 a plurality of times with respect to the upper housing 32, and can be used repeatedly as many times as possible without using batteries or the like. It is possible to reduce the number of items and save resources. In addition, since a charger for charging and other power supply for charging are not separately required, it can be used even in a place without such facilities, for example, in an emergency or emergency such as a disaster. Can be used.

Next, as another embodiment of the hands-free telephone device of the present invention, a modified configuration of the power supply unit 5 and its vicinity will be described with reference to FIGS. FIGS. 5A and 5B are views showing a configuration near a power supply unit of another embodiment of the hands-free telephone device of the present invention, wherein FIG. 5A is a cross-sectional view and FIG. FIG. 6A
FIG. 6A is a diagram showing a specific example of the piezoelectric element and the rectifier circuit of FIG. 5A, and FIG. 6B is a diagram showing a state at the time of manual power generation.

In these figures, the can-shaped housing 1 is composed of an upper housing (first housing) 52 in which the mobile phone 20 is stored and a lower housing (second housing) 53 constituting the power supply unit 5. Is done. The can-shaped housing 1 composed of the upper housing 52 and the lower housing 53 is configured so as to have substantially the same outer shape as a 350-milliliter can, for example.

The lower housing 53 has a cylindrical shape like the upper housing 52 with a substantially cylindrical bottom, and its upper and lower surfaces are closed. The lower housing 53 is configured to be detachable from the upper housing 52. In other words, a pair of substantially L-shaped connection electrodes 54 are fixed to the upper surface of the lower housing 53 so as to penetrate inside and outside the lower housing 53 in an inverted state. As shown in FIG. 5B, a large portion and a small portion penetrating the inside and outside of the lower housing 53 are provided on portions of the lower surface of the upper housing 32 facing the connection electrodes 54 and 54. And a pair of engaging holes 55, 55.

With the connection electrodes 54, 54 inserted into most of the engagement holes 55, 55 of the upper housing 52, respectively, FIG.
By rotating the lower housing 53 in the direction of the arrow in (B), the necks of the connection electrodes 54, 54 reach the small portions of the engagement holes 55, 55, and the lower housing 53 is integrated with the upper housing 52. It is fixed. Here, other connection electrodes 56, 56 are arranged at positions corresponding to the connection electrodes 54, 54 on the bottom inner surface of the upper housing 52, and the lower housing 53 is integrated with the upper housing 52. Thus, these connection electrodes 54 and the corresponding connection electrodes 56 are electrically connected. The connection terminals 56 are each connected to the control circuit board 8 via wiring.

A piezoelectric element (piezoelectric ceramic) 57 is fixed to the inner bottom of the lower housing 53. The piezoelectric element 57 is an element that generates electric power by a piezoelectric effect (a phenomenon in which electric polarization occurs when a mechanical stress is applied to a dielectric crystal). In this embodiment, a special shape having a substantially E-shape as shown in FIG. 6A is employed. When vibration is applied to the piezoelectric element 57, the central pendulum 57a
Swings from side to side, and a mechanical stress is applied to the piezoelectric element 57 to generate power.

A current generated by applying vibration to the piezoelectric element 57 is supplied to a secondary battery (a capacitor in this embodiment) 59 provided inside the lower housing 53 via a bridge type rectifier circuit 58. It is stored. The plus terminal of the secondary battery 59 is connected to the plus connection terminal 54 via a wiring, and the minus terminal of the secondary battery 59 is connected to the minus connection terminal 54 via a wiring.

When the lower housing 53 is detached from the upper housing 52, as shown in FIG. 6B, the power supply unit 5 is connected to, for example, a thumb and another index finger 60
When the power supply unit 5 is reciprocated right and left to perform an acceleration motion, the pendulum unit 57 of the piezoelectric element 57 therein is held.
a vibrates left and right, and a mechanical stress acts on the piezoelectric element 57 to generate an electric current. This current is supplied to the rectifier circuit 58
And is stored in the secondary battery 59.

After the required amount of power generation and charging is performed by repeating the application of vibration to the power supply unit 5 as described above, the lower housing 53 (power supply unit 5) is connected to the upper housing 52.
By fixing, this hands-free telephone device can be used. When the stored power has been used up, or if necessary, the power supply unit 5 is removed from the upper housing 52 and charged by vibrating as described above,
Hereinafter, the same can be used.

As described above, in the hands-free telephone device of the present embodiment, the power supply unit 5 configured to be detachable
The battery can be charged by being vibrated by grasping it at zero and can be used repeatedly as many times as possible, so that waste can be reduced and resources can be saved. In addition, since a charger for charging and other power supply for charging are not separately required, it can be used even in a place without such facilities, for example, in an emergency or emergency such as a disaster. Can be used.

In the other embodiment, the power supply 5
Although the (lower housing 53) is detachable from the upper housing 52, the lower housing 53 and the upper housing 52 are integrally formed, that is, the piezoelectric member applied to the inside of the can-shaped housing 1 is formed. The device 57 and the like may be arranged, and the hands-free telephone device itself may be shaken to be charged.

The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

For example, the power generation device (power generation means) is not limited to the above-described embodiment, and another type of generator utilizing electromagnetic induction, such as a device for rotating a coil in a magnetic field, may be employed. it can. Alternatively, another generator that generates power by a physical phenomenon other than electromagnetic induction can be employed.

Further, in the above-described embodiment, a manual power generation function is provided which converts a rotational motion by a human into electric energy or converts an acceleration motion by a human into electric energy and charges the battery. In such a configuration, ordinary dry batteries (primary batteries and secondary batteries) can be used as a power source. Usually, the hands-free telephone device is operated by the dry batteries and the power supply unit 5 is used when the dry batteries are exhausted. You may make it switch to a manual power generation function and use it. In this case, when used in a vehicle, the vehicle battery power may be directly supplied from a cigarette terminal or the like.

[0044]

As described above, according to the present invention, since the battery can be used many times without using a dry battery, waste can be reduced and resources can be saved. Also,
Since there is no need for a separate charger or power supply for charging, it can be used in places without such facilities, for example,
It can be used reliably even in emergency or emergency situations.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a hands-free telephone device of the present invention.

FIG. 2 is a perspective view showing an installed state of the embodiment of the hands-free telephone device of the present invention.

FIG. 3 is a block diagram showing an embodiment of the hands-free telephone device of the present invention.

FIGS. 4A and 4B are diagrams showing a main configuration of a hands-free telephone device according to an embodiment of the present invention, wherein FIG. 4A is a sectional view and FIG.

FIGS. 5A and 5B are diagrams showing a main configuration of another embodiment of the hands-free telephone device of the present invention, wherein FIG. 5A is a cross-sectional view and FIG. 5B is a plan view of a power supply unit.

6A and 6B are diagrams illustrating a main configuration of another embodiment of a hands-free telephone device according to the present invention, wherein FIG. 6A illustrates a specific example of a piezoelectric element and a rectifier circuit, and FIG. It is a figure showing a situation. DESCRIPTION OF SYMBOLS 10 ... Hands-free telephone device 1 ... Housing | casing 2 ... Telephone accommodation part 3 ... Microphone 4 ... Speaker 5 ... Power supply part 6 ... ON / OFF switch 7 ... Harness 8 ... Control circuit board 20 ... Mobile telephone 21 ... Input / output terminal 22 ... Built-in Microphone 23 ... Built-in speaker 24 ... Built-in antenna CH ... Cup holder 32,52 ... Upper case 33,53 ... Lower case 36 ... Coil spring 37 ... Rotator amplification gear 38 ... Generation rotor 39 ... Generation coil 40,58 ... Rectification Circuits 41, 59: Secondary battery 60: Finger 57: Piezoelectric element

Claims (3)

[Claims] 1. A power generation means (37, 38, 39, 57) and a power storage means (41, 59) for storing power generated by the power generation means in a housing (1) formed in a can shape. A hands-free telephone device comprising: 2. The housing (1) comprises a first housing (32) and a second housing (33) rotatably supported by the first housing, wherein the power generation means is provided in the first housing (32). The hands-free telephone device according to claim 1, characterized in that it is means (37, 38, 39) for electrically converting the rotational movement of the second housing with respect to one housing. 3. The hands-free telephone device according to claim 1, wherein said power generation means is means (57) for electrically converting acceleration motion applied to said housing (1).