JPH08154270A - Cordless telephone set - Google Patents

Abstract

PURPOSE: To obtain a cordless telephone set with convenience of use in which charging is attained with high reliability. CONSTITUTION: Recessed parts used to contain a receiver piece section 3A and a transmitter mouth piece section 3B of a cordless telephone set (slave set) 3 are provided to a telephone set main body (master set) 2 symmetrical to the center line C so as to allow the cordless telephone set (slave set) 3 to be set laterally in both the left and right directions. Furthermore, power generating means 5A, 5B are provided inside the two recessed parts, a charging means 8 is provided to the receiver piece section 3A of the cordless telephone set (slave set) 3 and the charging means 8 is charged from the power generating means 5A, 5B by means of electromagnetic induction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone device for performing contactless charging of a cordless telephone (slave unit) using a separation transformer, and particularly to a cordless telephone (slave unit) with respect to the telephone body (parent unit) in both left and right directions. The present invention relates to a cordless telephone device which can be horizontally placed and charged.

[0002]

2. Description of the Related Art In a conventional cordless telephone device, a cordless telephone (slave unit) is provided with a charging circuit having a rechargeable battery and a charging terminal, and a dedicated stand for the cordless telephone (slave unit) or a telephone body (master unit). ) Is equipped with a charger with a charging terminal, and cordless telephone (slave unit)
Are placed on the stand or the main unit of the telephone (main unit), the charging terminals are brought into contact with each other in the on-hook state (the standby state of the telephone), and the cordless telephone (the main unit) from the dedicated stand or the main unit of the telephone is connected via the charging terminal. Those configured to charge a child device are known.

These charging terminals are formed of a good conductive material such as metal, and are one of molds forming a case or a stand so that terminals do not short-circuit when touched by a user or placed on a metal plate. The structure is devised such that the charging terminal is surrounded by a part.

When the cordless telephone (slave unit) is placed on the telephone body (slave unit), the cordless telephone (slave unit) is placed horizontally rather than vertically, and the cordless telephone (slave unit) is placed in both left and right directions. There are also known ones configured to be able to.

In such a cordless telephone device of a cordless telephone (slave unit) which is horizontally placed in both left and right directions, the charging terminal is arranged on the center line in the longitudinal direction of the cordless telephone (slave unit), and the telephone is opposed to the charging terminal. The main body (main unit) is also provided with a charging terminal so that the charging terminals can contact each other and be charged regardless of whether the cordless telephone (slave unit) is placed in the left or right direction.

[0006]

Since the charging terminal of the conventional cordless telephone device is formed of a metal material, the contact is rusted due to environmental conditions of temperature and humidity or changes with time, and contact failure occurs, resulting in charging failure. There are issues to be solved.

Further, although the charging terminal is surrounded by a part of the mold, it is vulnerable to water because it is not hermetically sealed because of its structure. Waterproofing cannot be basically solved in the conventional structure in which the charging terminal is directly contacted. Has become.

Further, since the cordless telephone (slave unit) having the charging terminal arranged on the center line in the longitudinal direction has to be constructed so as to come into contact with the charging terminal provided on the telephone body (master unit), the cordless telephone. There is a problem that the design of (slave unit) is restricted.

To address such a problem, a cordless telephone device has been proposed which employs a contactless charging circuit for charging by utilizing electromagnetic induction. However, the contactless charging circuit is a cordless telephone (slave unit). ), The cordless telephone (slave unit) can be placed horizontally in both left and right directions. It is necessary to detect that it is placed on top (on-hook state).

The present invention has been made to solve such a problem, and its purpose is to charge a cordless telephone (slave unit) even if the cordless telephone (handset) is horizontally placed in both left and right directions, which is highly reliable and easy to use. To provide a device.

[0011]

In order to solve the above-mentioned problems, a cordless telephone device according to the present invention is provided with a charging means in an earpiece portion of a cordless telephone, and the cordless telephone is laterally arranged in the left or right direction on the telephone body. Charging power supply means provided with a hook switch and power generation means is provided at two respective positions facing the earpiece even when the earpiece is placed, and charging of one of the hookswitches that performs on-hook operation by the earpiece A feature is that power is supplied from the power supply means to the charging means.

Further, the two hook switches of the cordless telephone device according to the present invention are opposed to each other at a distance from the longitudinal center of the cordless telephone symmetrically to the earpiece when the cordless telephone is placed on the telephone body. It is characterized by being arranged.

Further, in the cordless telephone device according to the present invention, the charging power supply means detects the orientation and charging state of the earpiece of the cordless telephone based on the on-hook information from the hook switch on the side where the earpiece is placed. It is characterized in that it is provided with a charging state detecting means.

Further, the cordless telephone device according to the present invention is characterized in that a coil provided in each of the charging means and the power generation means forms a separation transformer, and power is supplied through the separation transformer when on-hook.

[0015]

In the cordless telephone device according to the present invention, charging means is provided in the earpiece of the cordless telephone, and the cordless telephone (slave unit) is horizontally placed in the telephone body (parent device) in either the left or right direction. Also, since the charging power supply means including the hook switch and the power generation means is provided at each of the two positions facing the earpiece, even if the cordless telephone (slave unit) is placed on the telephone body (master unit). It is possible to supply power to the charging means from the charging power supply means on one of the hook switches that is on-hook operated by the earpiece.

Further, the two hook switches of the cordless telephone device according to the present invention are cordless telephones (slave units).
The cordless telephone (slave unit) is placed on the phone body (slave unit) in an on-hook state, symmetrically from the longitudinal center of the cordless telephone (slave unit) and facing each other at the distance to the earpiece. The cordless telephone (slave unit) can be charged by operating the hook switch at the earpiece even when it is placed horizontally in either the left or right direction.

Further, in the cordless telephone device according to the present invention, the charging power supply means determines the orientation and charging state of the earpiece of the cordless telephone based on the on-hook information from the hook switch on the side where the earpiece is placed. Since the charging state detecting means for detecting is provided, it is possible to monitor the on-hook and charging of the cordless telephone (slave unit).

Further, in the cordless telephone device according to the present invention, the coil provided in each of the charging means and the electric power generating means forms the separation transformer, and the electric power is supplied through the separation transformer when on-hook. It is possible to make contacts.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram of a cordless telephone device according to the present invention. In FIG. 1, a cordless telephone device 1 includes a telephone body (master device) 2 connected to a telephone line.
And a cordless telephone (slave unit) 3 that can communicate wirelessly with the telephone body (slave unit) 2 and can be carried.

During standby (on-hook), the cordless telephone (slave unit) 3 is placed on the telephone body (slave unit) 2 so that the cordless telephone (slave unit) 2 can be placed horizontally in either left or right direction. Housing and cordless telephone (slave) 3
The case is molded with a mold.

Specifically, a recess for accommodating the earpiece portion 3A and the mouthpiece portion 3B of the cordless telephone (slave unit) 3 is provided in the telephone body (parent device) 2 symmetrically with respect to the center line C, and the cordless telephone ( It is possible to place the slave unit 3 horizontally in both left and right directions.

Further, in the two recesses provided symmetrically with respect to the center line C, from the longitudinal center of the cordless telephone (slave unit) 3 (the same position as the center line C when housed in the telephone body 2), the earpiece portion 3A. Hook button 11 symmetrically up to distance (L)
When A and 11B (corresponding to hook switches HS _A and HS _B ) are arranged so as to project and the cordless telephone (slave unit) 3 is housed in the recess, the hook buttons 11A and 11B are pressed only by the earpiece 3A. , The hook switches HS _A and HS _B are electrically turned off and on hook (standby). A hook switch used in a telephone generally has a normal make contact structure, and a hook switch of this type will be described below.

Further, power generating means 5A, 5B for generating electric power for charging the cordless telephone (slave unit) 3 are provided inside the two recesses symmetrically provided with respect to the center line C, and the cordless telephone is on-hook. Hook button 11A or 11 pressed on earpiece 3A of (child device) 3
Electric power for charging is generated from the electric power generating means 5A or 5B that operates in response to B (hook switch HS _A or HS _B is off).

On the other hand, the charging means 8 is provided inside the earpiece portion 3A of the cordless telephone (slave unit) 3 and the electric power provided inside the concave portion of the telephone body (parent device) 2 in which the earpiece portion 3A is stored when on-hook. It receives the electric power supplied from the generating means 5A or 5B (electric power generating means 5A in FIG. 1) and charges the battery (rechargeable battery) provided in the charging means 8.

As described above, since the cordless telephone device 1 is constructed such that the cordless telephone 3 can be horizontally placed on the telephone body 2 in both left and right directions, the operation (on-hook, off-hook) of the cordless telephone 3 can be performed from the front and back of the telephone body 2. You can easily.

The hook buttons 11A and 11B (corresponding to the hook switches HS _A and HS _B ) and the power generation means 5 are also provided.
Since A and 5B are provided and the power generation means 5A (or 5B) on the side pressed to the earpiece portion 3A when on-hook is configured to be supplied to the charging means 8 provided in the earpiece portion 3A, The cordless telephone (slave unit) 3 can always be charged when on-hook.

FIG. 2 shows a block diagram of the main part of the charging mechanism of the cordless telephone device according to the present invention. In FIG. 2, a cordless telephone device 1 includes a main body (main unit) 2 of a charging power supply unit 4, a telephone control unit 7, and an LED.
And a cordless telephone (slave unit) 3 having an earpiece (3A) having a charging means 8.

The charging power supply means 4 is a hook switch H.
S _A and electric power generation means 5A make one set, and another one of the same structure
A set of hook switches HS _B , power generation means 5 B, and charging state detection means 6 are provided. When the earpiece 3A of the cordless telephone (slave unit) 3 presses the hook button 11A (or 11B) and the hook switch HS _A (or HS _B ) is turned off (on-hook state), the on-hook signal S
_HA (or _SHB ) is provided to the charge state detection means 6.

The state of charge detection means 6 has an on-hook signal S _HA.
(Or S _HB ), the on-hook detection signal S _C is supplied to the telephone control means 7, and the telephone control means 7 drives the visual display means (for example, LED) for displaying the charging state, and at the same time outputs the charging signal S _HC . The charge state detection means 6 is supplied.

[0030] Based on the on-hook signal from the telephone controlling means 7 charging signal from the S _HC and hook switch HS _A (or HS _B) S _HA (or S _HB), charge state detecting means 6 power generating unit 5A (or 5B ) To drive signal H
Supply _OA (or H _OB ).

The power generation means 5A (or 5B) includes an oscillating circuit 5C (or 5D) and a primary coil L _P1 (or L _P2 ), and the oscillating circuit 5C (or 5D) is driven by a drive signal H _OA (or H _OB ). High frequency voltage signal v
_DA (or v _DB ) is oscillated and output, and radiated as an electromagnetic wave through the primary coil L _P1 (or L _P2 ).

The charging means 8 provided in the earpiece 3A comprises a secondary coil L _S , a charging circuit 9 and a battery (charging battery) 10, and the primary coil L of the power generating means 5A (or 5B).
The electromagnetic wave of the voltage signal v _DA (or v _DB ) radiated from _P1 (or L _P2 ) is received by the secondary coil L _S and the voltage signal v _C is received.
And is supplied to the charging circuit 9.

The charging circuit 9 is composed of a rectifying circuit, a smoothing circuit, a backflow preventing circuit, etc., converts the voltage signal v _C into a DC voltage to charge the battery 10, and defines the battery voltage when the charging time is sufficient. And the voltage value E _o .

The primary coil L _P1 or the primary coil L _P2 and the secondary coil L _S form a separation transformer 12, a cordless telephone (slave unit) 3 is placed on the telephone body (slave unit) 2, and the earpiece 3A The side where the hook switch HS _A or the hook switch HS _B is turned off (on-hook state), the secondary coil L _S approaches the primary coil L _P1 , or the primary coil L _P2, and the secondary coil L _S approaches. Of the voltage signal (v _DA radiated from the primary coil (L _P1 or L _P2 ) of
Or v _DB ) as the voltage signal v _C , it forms a contactless charging circuit.

Earpiece section 3 of cordless telephone (slave unit) 3
When A is placed on the left (for example, the arrangement shown in FIG. 2),
Power for charging is supplied from the power generation means 5A (power generation means 5B does not operate), while when the earpiece 3A is placed on the right side, power for charging is supplied from the power generation means 5B (power generation). Since the means 5A does not operate) and only the power generation means (5A or 5B) on the side where the earpiece 3A is placed is always operated, the power consumption can be reduced.

FIG. 3 shows a circuit diagram of an embodiment of the charging state detecting means according to the present invention. In FIG. 3, the charge state detection means 6 includes a resistor R _A , a diode E D and an AND gate 6 _A, and a resistor R arranged in parallel with the same configuration as this circuit.
_B , diode D _B and AND gate 6B.

When the hook switch HS _A is turned off (on hook), the H level on hook detection signal S _C is supplied to the telephone control means 7 through the diode E _A and at the same time one of the inputs of the 2-input AND gate 6A. The on-hook signal S _HA is input. In this state, since the other input (charge signal S _HC ) of the 2-input AND gate 6A is at L level, the output of the 2-input AND gate 6A (drive signal H _OA ) is also at L level, and the oscillation circuit 5C is Inactive.

An on-hook detection signal S is sent to the telephone control means 7.
_{When C} is supplied and the H-level charge signal S _HC is supplied from the telephone control means 7, the drive signal H _OA output from the 2-input AND gate 6A also becomes H level and the oscillation circuit 5C is generated.
Starts oscillating.

On the other hand, when the hook switch HS _B is off (on-hook), the inputs (on-hook signal S _HB and charging signal S _HC ) of the 2-input AND gate 6B both become H level and the drive signal H _OB also. H level, oscillation circuit 5D
Starts oscillating.

Even if either the hook switch HS _A or the hook switch HS _B is turned off, the on-hook detection signal S _C is supplied to the telephone control means 7, so that the telephone control means is based on the on-hook detection signal S _C. A visible display element such as an LED is driven from 7 to display the charging state.

Further, the outputs of the AND gates 6A and 6B are monitored, and when the drive signal H _OA is at H level and the drive signal H _OB is at L level, the cordless telephone (slave unit) 3 is placed on the left, Drive signal H _OA is at L level and drive signal H
_{When OB} is at H level, the cordless telephone (slave unit) 3 is placed on the right side, and when both drive signal H _OA and drive signal H _OB are at L level, the off-hook state can be detected.

[0042]

As described above, in the cordless telephone device according to the present invention, charging means is provided in the earpiece of the cordless telephone, and the cordless telephone (slave unit) is provided on the left or right side of the telephone body (parent device). Even when placed horizontally in the direction, charging power supply means including a hook switch and power generation means are provided at two respective positions facing the earpiece, and the cordless telephone (slave unit) is the telephone body (master unit). Even if the battery is placed on the battery, power can be supplied to the charging means from the charging power supply means on one of the hook switches that perform on-hook operation by the earpiece, so that it is possible to perform efficient charging with low power consumption. .

The two hook switches of the cordless telephone system according to the present invention are cordless telephones (slave units).
Are placed on the main body of the telephone (on handset), they are placed symmetrically with respect to the longitudinal center of the cordless telephone (handset), facing each other at the distance to the earpiece. Since the cordless telephone (slave unit) can be charged by operating the hook switch at the earpiece regardless of the horizontal orientation in any direction, the on-hook state can be reliably charged.

Further, in the cordless telephone device according to the present invention, the charging power supply means is provided with the orientation and the charging state of the earpiece of the cordless telephone based on the on-hook information from the hook switch on the side where the earpiece is placed. Since the charging state detecting means for detecting is provided and the on-hook state and the charging state of the cordless telephone (slave unit) can be monitored, the on-hook state and the charging state can be detected at the same time.

Further, in the cordless telephone device according to the present invention, the coil provided in each of the charging means and the power generation means forms a separation transformer, and power is supplied through the separation transformer when on-hook, and the contactless contact of the charger is provided. Therefore, highly reliable charging without contact failure can be realized.

Therefore, it is possible to provide a cordless telephone device which is easy to use and can be charged with high reliability.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a cordless telephone device according to the present invention.

FIG. 2 is a block diagram of a main part of a charging mechanism of the cordless telephone device according to the present invention.

FIG. 3 is a circuit diagram of an embodiment of a charging state detecting means according to the present invention.

[Explanation of symbols]

1 ... Cordless telephone device, 2 ... Telephone body (base unit), 3
… Cordless telephone (slave), 3A… Earpiece, 3B…
Mouthpiece section, 4 ... Charging power supply means, 5A, 5B ... Power generation means, 5C, 5D ... Oscillation circuit, 6 ... Charge state detection means, 6A, 6B ... AND gate, 7 ... Telephone control means,
8 ... charging means, 9 ... charging circuit, 10 ... battery (rechargeable battery), 11A, 11B ... hook button, 12 ... separation transformer, LED ... light-emitting diodes, D _A, D _B ... diodes, HS _A, HS _B ... Hook Switch, H _OA , H _OB ... Drive signal, L _P1 , L _P2 ... Primary coil, L _S ... Secondary coil,
R _A , R _B ... Resistance, S _HA , S _HB ... On-hook signal, S _HC ...
Charge signal, S _C ... On-hook detection signal, v _DA , v _DB , v _C
… Voltage signal.

Claims (4)

[Claims] 1. A cordless telephone device in which a cordless telephone is placed on a telephone body to be in an on-hook state, and electric power is supplied from the telephone body to the on-hook state by electromagnetic induction to charge the cordless telephone. A charging means is provided in the earpiece portion, and a hook switch and power generation means are provided at two respective positions facing the earpiece portion when the cordless telephone is horizontally placed in the telephone body in either the left or right direction. A cordless telephone device, characterized in that a charging power supply means including a power supply means is provided, and power is supplied to the charging means from the power generation means on one of the hook switches that performs an on-hook operation by the earpiece. 2. The two hook switches are arranged to face each other symmetrically from the longitudinal center of the cordless telephone at a distance to the earpiece in the on-hook state where the cordless telephone is placed on the telephone body. The cordless telephone device according to claim 1, wherein the cordless telephone device is provided. 3. A charging state in which the charging power supply means detects the orientation and the charging state of the earpiece of the cordless telephone based on on-hook information from the hook switch on the side where the earpiece is placed. The cordless telephone device according to claim 1, further comprising detection means. 4. The cordless telephone according to claim 1, wherein a coil provided in each of the charging unit and the electric power generating unit forms a separation transformer, and electric power is supplied through the separation transformer when on-hook. apparatus.