JPH0795143A - Cordless phone charger - Google Patents
Cordless phone chargerInfo
- Publication number
- JPH0795143A JPH0795143A JP5234883A JP23488393A JPH0795143A JP H0795143 A JPH0795143 A JP H0795143A JP 5234883 A JP5234883 A JP 5234883A JP 23488393 A JP23488393 A JP 23488393A JP H0795143 A JPH0795143 A JP H0795143A
- Authority
- JP
- Japan
- Prior art keywords
- charging
- battery
- mobile equipment
- voltage drop
- output control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はコードレス電話機のコー
ドレス電話充電器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cordless telephone charger for a cordless telephone.
【０００２】[0002]
【従来の技術】従来より、電話回線に接続された固定機
と、これと無線にて通話を行う移動機、あるいは前記固
定機，移動機および充電台で構成されたコードレス電話
機が使用されている。2. Description of the Related Art Conventionally, a fixed machine connected to a telephone line, a mobile machine for making a wireless call with the fixed machine, or a cordless telephone composed of the fixed machine, the mobile machine and a charging stand has been used. .
【０００３】この移動機は充電可能な電池で駆動されて
おり、使用電池として主にＮi−Ｃd電池が用いられてい
る。前記移動機を前記固定機あるいは充電台の上に置く
ことで固定機および移動機に設けられた充電端子が接触
し、移動機の電池が充電される。This mobile unit is driven by a rechargeable battery, and a Ni-Cd battery is mainly used as a battery to be used. By placing the mobile unit on the stationary unit or the charging stand, the charging terminals provided on the stationary unit and the mobile unit come into contact with each other, and the battery of the mobile unit is charged.
【０００４】図３は上記充電台18(あるいは固定機)に移
動機19(例えば、コードレス子機)が載置された状態の概
略側面図を示し、充電台18(あるいは固定機)は電源17に
接続されている。FIG. 3 is a schematic side view showing a state where a mobile unit 19 (for example, a cordless cordless handset) is placed on the charging stand 18 (or stationary machine). The charging stand 18 (or stationary machine) is a power source 17 It is connected to the.
【０００５】[0005]
【発明が解決しようとする課題】ところで、このような
コードレス電話機において、通常、移動機19を使用後、
固定機あるいは充電台18の上に移動機19を置き、充電を
行うという充電放電の繰り返しが常時行われるため、移
動機に設けられたＮi−Ｃd電池は80％程度から100％の
電池容量の間で常に充放電を繰り返すことにより、Ｎi
−Ｃd電池特有のメモリ保持効果(完全な放電をせず、中
途半端な放電をして充電する部分充放電をいう)がＮi−
Ｃd電池に起こり、電池容量が劣化し、移動機による通
話可能時間が極端に短くなるという現象が見られた。In such a cordless telephone, normally, after using the mobile device 19,
Since the mobile device 19 is placed on the stationary device or the charging stand 18 and charging and discharging are repeatedly performed, the Ni-Cd battery provided in the mobile device has a battery capacity of about 80% to 100%. By constantly repeating charging and discharging between
-The memory retention effect peculiar to the Cd battery (meaning partial charge / discharge that does not completely discharge but halfway discharge)
It was observed that the phenomenon occurred in the Cd battery, the battery capacity deteriorated, and the callable time by the mobile device became extremely short.
【０００６】本発明は、簡単な構成で移動機の電池を劣
化変質させないコードレス電話充電器の提供を目的とす
るものである。It is an object of the present invention to provide a cordless telephone charger which has a simple structure and does not deteriorate or alter the battery of a mobile device.
【０００７】[0007]
【課題を解決するための手段】本発明は上記課題を解決
し目的を達成するため、移動機内に、内部の回路に電力
を供給する電池の電圧低下状態を検出する電圧低下検出
回路およびこの電圧低下検出回路の出力に基づいて電圧
低下を表示する表示素子を設け、一方の固定機あるいは
充電台側に、前記移動機の電圧低下表示素子の表示内容
を検出する受光素子により前記移動機内の電池に充電電
流を供給するとともに、その充電出力をタイマー回路に
より満充電に制御可能とした。SUMMARY OF THE INVENTION In order to solve the above problems and to achieve the object, the present invention provides a voltage drop detection circuit for detecting a voltage drop state of a battery for supplying power to an internal circuit in a mobile unit, and this voltage. A display element for displaying a voltage drop based on the output of the voltage drop detection circuit is provided, and the battery inside the mobile unit is provided by a light receiving element for detecting the display content of the voltage drop display element of the mobile unit on one fixed machine or charging stand side. The charging current can be supplied to and the charging output can be controlled to full charge by the timer circuit.
【０００８】[0008]
【作用】本発明によれば、移動機内にある電池の電圧低
下を表示素子に表示し、これを固定機あるいは充電台の
受光素子で検出し、ある一定時間移動機内の電池を満充
電するようにしたものである。According to the present invention, the voltage drop of the battery in the mobile unit is displayed on the display element, and this is detected by the light receiving element of the stationary unit or the charging stand, and the battery in the mobile unit is fully charged for a certain period of time. It is the one.
【０００９】[0009]
【実施例】以下、本発明の一実施例について図面を参照
しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１は本発明の一実施例におけるコードレ
ス電話機の移動機の充電装置の構成を示すブロック図、
図２は固定機あるいは充電台の充電装置の構成を示すブ
ロック図である。FIG. 1 is a block diagram showing the construction of a charging device for a mobile device of a cordless telephone according to an embodiment of the present invention,
FIG. 2 is a block diagram showing a configuration of a charging device for a stationary machine or a charging stand.
【００１１】図１の移動機の充電装置において、１は充
電端子、２は逆流防止ダイオード、３はＮi−Ｃd電池、
４は電圧低下検出回路、５は制御手段であるマイクロコ
ンピュータ、６は抵抗、７は電圧低下を表示する表示素
子としてのＬＥＤである。In the charging device for a mobile device shown in FIG. 1, 1 is a charging terminal, 2 is a backflow prevention diode, 3 is a Ni-Cd battery,
Reference numeral 4 is a voltage drop detection circuit, 5 is a microcomputer as control means, 6 is a resistor, and 7 is an LED as a display element for displaying a voltage drop.
【００１２】図２の固定機あるいは充電台の充電装置に
おいて、８は充電端子、９ないし12は抵抗、13は前記表
示素子ＬＥＤ７の状態を検出する受光素子としてのフォ
トトランジスタ、14はタイマー回路、15，16は充電出力
制御用トランジスタである。In the stationary device or charging device of the charging stand of FIG. 2, 8 is a charging terminal, 9 to 12 are resistors, 13 is a phototransistor as a light receiving element for detecting the state of the display element LED 7, 14 is a timer circuit, 15 and 16 are charge output control transistors.
【００１３】以上のように構成されたコードレス電話充
電器について、以下その動作を説明する。The operation of the cordless telephone charger constructed as above will be described below.
【００１４】図１に示す移動機の使用によってＮi−Ｃd
電池３が電圧低下状態となると、電圧低下検出回路４は
その電圧低下状態を検出し、検出信号を制御手段である
マイクロコンピュータ５に送出する。このマイクロコン
ピュータ５は、その信号を受け取ると、表示素子である
ＬＥＤ７を点灯させる。By using the mobile unit shown in FIG.
When the battery 3 is in the voltage drop state, the voltage drop detection circuit 4 detects the voltage drop state and sends a detection signal to the microcomputer 5 which is the control means. Upon receiving the signal, the microcomputer 5 turns on the LED 7 which is a display element.
【００１５】このとき、図３に例示するように固定機あ
るいは充電台18の上に前記低電圧状態の移動機19が置か
れると、図２に示すフォトトランジスタ13により移動機
19のＬＥＤ７の点灯状態を検出し、移動機19が低電圧状
態であることを確認して制御信号をタイマー回路14に送
出する。タイマー回路14は低電圧状態から満充電にＮi
−Ｃd電池３を充電する時間が設定されており、決めら
れた一定時間、充電出力制御用トランジスタ15をＯＮす
る。この充電出力制御用トランジスタ15がＯＮすると、
充電出力制御用トランジスタ16のベース電位がＬowレベ
ルとなり、充電出力制御用トランジスタ16がＯＮ状態と
なる。At this time, when the mobile station 19 in the low voltage state is placed on the stationary machine or the charging stand 18 as illustrated in FIG. 3, the mobile station is moved by the phototransistor 13 shown in FIG.
The lighting state of the LED 7 of 19 is detected, it is confirmed that the mobile device 19 is in the low voltage state, and the control signal is sent to the timer circuit 14. The timer circuit 14 is fully charged from the low voltage state to Ni.
The time for charging the Cd battery 3 is set, and the charge output control transistor 15 is turned on for a predetermined fixed time. When this charge output control transistor 15 is turned on,
The base potential of the charge output control transistor 16 becomes Low level, and the charge output control transistor 16 is turned on.
【００１６】これにより、固定機あるいは充電台18の電
源17より充電端子８を介して移動機の充電端子１に充電
電流が供給される。As a result, the charging current is supplied from the power source 17 of the stationary device or the charging stand 18 to the charging terminal 1 of the mobile device via the charging terminal 8.
【００１７】[0017]
【発明の効果】以上説明したように、本発明は、移動機
が低電圧状態になって始めて充電が行われることによ
り、従来過度の充放電によりＮi−Ｃd電池の寿命が損な
われていたことを大幅に改善できるものである。また、
電圧低下検出回路はコードレス電話機に搭載されている
通常の機能であり、その機能を流用することで安価に実
現できる。As described above, according to the present invention, since the mobile device is charged only when the mobile device is in the low voltage state, the life of the Ni-Cd battery has been impaired due to excessive charging and discharging. Can be greatly improved. Also,
The voltage drop detection circuit is a normal function installed in a cordless telephone, and can be realized at low cost by diverting that function.
【図１】本発明の一実施例におけるコードレス電話機の
移動機の充電装置の構成を示すブロック図である。FIG. 1 is a block diagram showing a configuration of a charging device for a mobile device of a cordless telephone according to an embodiment of the present invention.
【図２】固定機あるいは充電台の充電装置の構成を示す
ブロック図である。FIG. 2 is a block diagram showing a configuration of a charging device for a stationary machine or a charging stand.
【図３】充電台あるいは固定機に移動機が載置された状
態の概略側面図である。FIG. 3 is a schematic side view showing a state where a mobile device is placed on a charging stand or a stationary device.
１，８…充電端子、 ２…逆流防止ダイオード、 ３…
Ｎi−Ｃd電池、 ４…電圧低下検出回路、 ５…マイク
ロコンピュータ、 ６，９〜12…抵抗、 ７…ＬＥＤ、
13…フォトトランジスタ、 14…タイマー回路、 1
5，16…充電出力制御用トランジスタ、 17…電源、 1
8…充電台、 19…移動機。1, 8 ... Charging terminal, 2 ... Backflow prevention diode, 3 ...
Ni-Cd battery, 4 ... Voltage drop detection circuit, 5 ... Microcomputer, 6, 9-12 ... Resistor, 7 ... LED,
13 ... Phototransistor, 14 ... Timer circuit, 1
5, 16 ... Transistor for charge output control, 17 ... Power supply, 1
8… Charging stand, 19… Mobile unit.
Claims (1)
低下を検出する電圧低下検出回路と、前記電圧低下検出
回路からの検出信号に基づき電池電圧低下の状態を表示
素子に点灯させる制御部と、充電端子を備え、電話回線
に接続された固定機あるいは充電台側には、前記移動機
側の表示素子の点灯状態を検出する受光素子と、前記受
光素子の受光出力に基づき充電出力制御用トランジスタ
を動作させ前記移動機側の電池を満充電するに必要な時
間設定を行うタイマー回路と、充電端子を有することを
特徴とするコードレス電話機のコードレス電話充電器。1. A mobile unit, on the side of a mobile device, a voltage drop detection circuit for detecting a voltage drop of a battery when used, and a control unit for lighting a battery voltage drop state on a display element based on a detection signal from the voltage drop detection circuit. A light receiving element for detecting the lighting state of the display element of the mobile unit on the fixed machine or charging stand side connected to the telephone line and a charging output control based on the light receiving output of the light receiving element. A cordless telephone charger for a cordless telephone, comprising a timer circuit for operating a transistor for charging and setting a time required to fully charge the battery on the mobile unit side, and a charging terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5234883A JPH0795143A (en) | 1993-09-21 | 1993-09-21 | Cordless phone charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5234883A JPH0795143A (en) | 1993-09-21 | 1993-09-21 | Cordless phone charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0795143A true JPH0795143A (en) | 1995-04-07 |
Family
ID=16977821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5234883A Pending JPH0795143A (en) | 1993-09-21 | 1993-09-21 | Cordless phone charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0795143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6839186B2 (en) | 2000-09-06 | 2005-01-04 | Fuji Photo Optical Co., Ltd. | Large numerical aperture objective lens and night vision optical device using the same |
-
1993
- 1993-09-21 JP JP5234883A patent/JPH0795143A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6839186B2 (en) | 2000-09-06 | 2005-01-04 | Fuji Photo Optical Co., Ltd. | Large numerical aperture objective lens and night vision optical device using the same |
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