JPH0732417B2 - Cordless telephone device - Google Patents
Cordless telephone deviceInfo
- Publication number
- JPH0732417B2 JPH0732417B2 JP30049889A JP30049889A JPH0732417B2 JP H0732417 B2 JPH0732417 B2 JP H0732417B2 JP 30049889 A JP30049889 A JP 30049889A JP 30049889 A JP30049889 A JP 30049889A JP H0732417 B2 JPH0732417 B2 JP H0732417B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- circuit
- telephone device
- terminals
- alarm sound
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、固定局と、充電式電池を電源として動作し、
無線を利用して固定局と通話を行なう移動局を備えたコ
ードレス電話装置に関するものである。The present invention relates to a fixed station and a rechargeable battery as a power source.
The present invention relates to a cordless telephone device including a mobile station that makes a call with a fixed station by using wireless.
従来の技術 第２図は従来のコードレス電話装置を示している。第２
図において、Ａは固定局であり、この固定局Ａは電話線
１と接続された回線制御部（NCU）２と、このNCU2に接
続された無線通話回路３と、移動局Ｂに充電電流を供給
する端子4a,4bを有する充電回路４とで構成されてい
る。2. Description of the Related Art FIG. 2 shows a conventional cordless telephone device. Second
In the figure, A is a fixed station, and this fixed station A supplies a charging current to a line control unit (NCU) 2 connected to a telephone line 1, a wireless communication circuit 3 connected to this NCU 2, and a mobile station B. And a charging circuit 4 having terminals 4a and 4b for supplying.
移動局Ｂは無線通話回路５を制御する制御回路６と、充
電端子7a,7b間の電圧により、固定局Ａからの充電電流
を検出する充電検出回路７と、この充電検出回路７を介
して充電されるともに、移動局Ｂの各回路に電源供給を
行なう充電電池８とで構成されている。The mobile station B controls the wireless communication circuit 5, a charge detection circuit 7 for detecting the charge current from the fixed station A by the voltage between the charge terminals 7a and 7b, and the charge detection circuit 7 It is composed of a rechargeable battery 8 which is charged and supplies power to each circuit of the mobile station B.
第３図は上記移動局Ｂの充電検出回路７の構成を示して
いる。第３図において、充電検出回路７は充電端子7a,7
bと充電電池８との接続路に設けたダイオード９及び抵
抗10と、上記充電端子7aと充電電池８の負荷端子に並列
接続した分圧抵抗11,12と、コレクタを制御回路６に接
続し、エミッタを充電電池８の負極端子に接続し、ベー
スを分圧抵抗11,12の接続点Ｐに接続したトランジスタ1
3とで構成されている。14a,14bは端子4a,4bと端子7a,7b
との接続抵抗である。FIG. 3 shows the configuration of the charge detection circuit 7 of the mobile station B. In FIG. 3, the charge detection circuit 7 includes charge terminals 7a, 7
Connect the diode 9 and the resistor 10 provided in the connection path between b and the rechargeable battery 8, the voltage dividing resistors 11 and 12 connected in parallel to the charge terminal 7a and the load terminal of the rechargeable battery 8, and the collector to the control circuit 6. , A transistor 1 whose emitter is connected to the negative terminal of the rechargeable battery 8 and whose base is connected to the connection point P of the voltage dividing resistors 11 and 12.
It consists of 3 and. 14a and 14b are terminals 4a and 4b and terminals 7a and 7b
It is the connection resistance with.
発明が解決しようとする課題 しかしながら、上記従来のコードレス電話装置において
は、使用条件によって、接触抵抗14a,14bが増大し、充
分な充電が行なえなくなったり、トランジスタ13が電池
電圧の低下により動作しないため、移動局Ｂが所定の動
作をせず、使用者に不信感を与えるという問題があっ
た。However, in the above conventional cordless telephone device, depending on the use conditions, the contact resistances 14a and 14b increase, it becomes impossible to perform sufficient charging, or the transistor 13 does not operate due to a decrease in battery voltage. However, there is a problem that the mobile station B does not perform a predetermined operation and gives the user a feeling of distrust.
本発明はこのような従来の問題を解決するものであり、
接続端子間の接触抵抗の増大に伴ない充分な充電が行な
えなくなったことを使用者に表示し、充電端子接続面の
清拭を使用者に促し、常時正常に動作する優れたコード
レス電話装置を提供することを目的とするものである。The present invention solves such conventional problems,
Shows to the user that sufficient charging cannot be performed due to the increase in contact resistance between the connection terminals, prompts the user to clean the charging terminal connection surface, and provides an excellent cordless telephone device that always operates normally. It is intended to be provided.
課題を解決するための手段 本発明は、上記目的を達成するために、充電電流を検出
して動作する第１のスイッチ回路と、充電端子間の電圧
を検出して動作する第２のスイッチ回路を充電検出回路
に具備したものである。Means for Solving the Problems To achieve the above object, the present invention provides a first switch circuit that operates by detecting a charging current and a second switch circuit that operates by detecting a voltage between charging terminals. Is included in the charge detection circuit.
作用 したがって、本発明によれば、第１のスイッチ回路が不
動作となる充電端子接触抵抗においても、第２のスイッ
チ回路は動作可能な動作電圧に設定することにより、第
１のスイッチ回路は不動作、第２のスイッチ回路は動作
の時、警報音発生回路から警報音を発生させ、使用者に
充電端子接点の清拭時期を適確に知らせ、使用者への充
電不足による不動作に対する不信感を無くする。Effect Therefore, according to the present invention, even in the charging terminal contact resistance in which the first switch circuit is inoperable, the second switch circuit is set to an operable voltage so that the first switch circuit does not operate. In operation, when the second switch circuit is in operation, an alarm sound is generated from the alarm sound generation circuit to inform the user properly when to clean the charging terminal contact, and the user is distrusted about the malfunction due to insufficient charging. To lose the feeling.
実施例 第１図は本発明の一実施例の構成を示すものである。前
記第３図と同一部分に同一符号を付した第１図におい
て、15は充電検出回路であり、この充電検出回路15は充
電端子7a,7bと充電電池８との接続路に設けたダイオー
ド16および抵抗17と、上記充電端子7aと充電電池８の負
極端子間に並列に接続した分圧抵抗18,19と、コレクタ
を制御回路25に接続し、エミッタを充電電池８の負荷端
子に接続し、ベースを分圧抵抗18,19の接続点P1に接続
したトランジスタ21と、上記抵抗17と並列に接続した分
圧抵抗22,23と、コレクタを上記制御回路25に接続し、
エミッタを充電端子7bに接続し、ベースを分圧抵抗22,2
3の接続点P2に接続したトランジスタ24とで構成されて
いる。Embodiment FIG. 1 shows the structure of an embodiment of the present invention. In FIG. 1 in which the same parts as those in FIG. 3 are designated by the same reference numerals, 15 is a charge detection circuit, and this charge detection circuit 15 is a diode 16 provided in a connection path between the charge terminals 7a and 7b and the charge battery 8. And resistor 17, the voltage dividing resistors 18 and 19 connected in parallel between the charging terminal 7a and the negative terminal of the charging battery 8, the collector is connected to the control circuit 25, and the emitter is connected to the load terminal of the charging battery 8. , A transistor 21 whose base is connected to the connection point P 1 of the voltage dividing resistors 18 and 19, voltage dividing resistors 22 and 23 connected in parallel with the resistor 17, and a collector connected to the control circuit 25,
Connect the emitter to the charging terminal 7b and connect the base to the voltage dividing resistor 22,2.
3 and a transistor 24 connected to the connection point P 2 .
そして、上記トランジスタ24は抵抗22,23による分圧比
により、抵抗17に流れる電流値が一定値以上の時には動
作状態となるように接続され、分圧抵抗22,23とトラン
ジスタ24により第１のスイッチ回路を構成している。ま
た、分圧抵抗18,19とトランジスタ21は第２のスイッチ
回路を構成している。The transistor 24 is connected so as to be in an operating state when the value of the current flowing through the resistor 17 is a certain value or more by the voltage dividing ratio of the resistors 22 and 23. The voltage dividing resistors 22 and 23 and the transistor 24 make the first switch. It constitutes the circuit. The voltage dividing resistors 18 and 19 and the transistor 21 form a second switch circuit.
26は第１のスイッチ回路が不動作を検出し、かつ第２の
スイッチ回路が動作を検出した時に制御回路25から出力
される制御出力により、警報音を発生する警報音発生回
路である。Reference numeral 26 is an alarm sound generation circuit for generating an alarm sound by the control output output from the control circuit 25 when the first switch circuit detects the non-operation and the second switch circuit detects the operation.
次に上記実施例の動作について説明する。端子4a,4bと7
a,7b間の接触抵抗14a,14bが増大した状態では、端子7a,
7b間には充電電池８に残った電圧に近い電圧が加わり、
分圧抵抗18,19を介してトランジスタ21は充分動作可能
となる。Next, the operation of the above embodiment will be described. Terminals 4a, 4b and 7
When the contact resistance 14a, 14b between a and 7b is increased, the terminals 7a,
A voltage close to the voltage remaining in the rechargeable battery 8 is applied between 7b,
The transistor 21 can fully operate via the voltage dividing resistors 18 and 19.
ところが、抵抗17に流れる充電電流は少なく、分圧抵抗
22,23で設定された分圧値では、トランジスタ24を動作
させることができず、不動作となる。このとき、制御回
路25は充電電池８から電源を得て動作しており、トラン
ジスタ21の出力により充電状態になっていることが入力
され、トランジスタ24の不動作検出出力により、充電電
流が充分供給されていないことが判定できる。この判定
結果により、警報音発生回路26を駆動し、警報音を出力
することにより、充電端子4a,4bと7a,7b間の接触抵抗14
a,14bが充電を充分行なえない数値まで増大したことを
表示する。However, the charging current flowing through the resistor 17 is small and the voltage dividing resistor
With the divided voltage value set in 22,23, the transistor 24 cannot be operated and becomes inoperative. At this time, the control circuit 25 is operating by obtaining power from the rechargeable battery 8 and the fact that it is in the charging state is input by the output of the transistor 21, and the non-operation detection output of the transistor 24 supplies sufficient charging current. It can be determined that it has not been done. Based on this determination result, the alarm sound generation circuit 26 is driven and the alarm sound is output, so that the contact resistance 14 between the charging terminals 4a, 4b and 7a, 7b is increased.
Indicates that a and 14b have increased to a value where they cannot be fully charged.
なお、上記固定局Ａの充電端子4a,4bを専用充電台の充
電端子に置き換えても同様の効果を得ることができる。
また、警報音発生回路26による可聴警報を、表示回路に
よる可視表示に置き換えても同様の効果を得ることがで
きる。The same effect can be obtained by replacing the charging terminals 4a and 4b of the fixed station A with charging terminals of a dedicated charging stand.
Further, the same effect can be obtained by replacing the audible alarm generated by the alarm sound generation circuit 26 with a visual display by the display circuit.
発明の効果 本発明は上記実施例から明らかなように、移動局および
固定局の充電端子間の接続抵抗が増大したとき、警報音
を発するように構成したので、充電端子間の清拭の時期
が適確に認識できる。その結果、 （ａ） 充電端子に対する定期的な清拭から、必要な時
期の清拭にすることができ、不要な作業が排除できる。EFFECTS OF THE INVENTION As is apparent from the above-described embodiment, the present invention is configured to generate an alarm sound when the connection resistance between the charging terminals of the mobile station and the fixed station increases. Can be accurately recognized. As a result, (a) the charging terminal can be periodically wiped from the required time, and unnecessary work can be eliminated.
（ｂ） 充電端子の清拭忘れにより充電がなされず、コ
ードレス電話装置を使用できないという不便さを生じな
い。(B) There is no inconvenience that the cordless telephone device cannot be used because charging is not performed due to forgetting to clean the charging terminal.
（ｃ） 充電中のスイッチ回路動作を電圧検出による第
２のスイッチ回路で行うことにより無線回路の制御を行
うので、通常の電話機同様の通話開始、終話の動作が充
電動作に伴って行うことができる。(C) Since the wireless circuit is controlled by performing the switch circuit operation during charging by the second switch circuit that detects the voltage, the same call start and call end operations as in a normal telephone can be performed with the charging operation. You can
などの効果がある。And so on.
第１図は本発明の一実施例におけるコードレス電話装置
の移動局の主要部を示す回路図、第２図はコードレス電
話装置のブロック図、第３図は従来のコードレス電話装
置の移動局の主要部を示す回路図である。 Ａ……固定局、Ｂ……移動局、４……充電回路、25……
制御回路、26……警報音発生回路。FIG. 1 is a circuit diagram showing a main part of a mobile station of a cordless telephone device according to an embodiment of the present invention, FIG. 2 is a block diagram of the cordless telephone device, and FIG. 3 is a main portion of a mobile station of a conventional cordless telephone device. It is a circuit diagram which shows a part. A: Fixed station, B: Mobile station, 4 ... Charging circuit, 25 ...
Control circuit, 26 ... Alarm sound generation circuit.
Claims (1)
充電端子に流れる充電電流を検出して動作する第１のス
イッチ回路と、前記充電端子間の電圧を検出して動作す
る第２のスイッチ回路と、前記第1,第２のスイッチ回路
の出力により充電状態を判定する制御回路と、この制御
回路の判定結果により警報音を発生する警報音発生回路
とを備えた移動局を有するコードレス電話装置。1. A charging terminal to which a charging current is supplied, a first switch circuit which operates by detecting a charging current flowing through the charging terminal, and a second switching circuit which operates by detecting a voltage between the charging terminals. A cordless mobile station having a switch circuit, a control circuit for determining a charging state based on the outputs of the first and second switch circuits, and an alarm sound generation circuit for generating an alarm sound according to the determination result of the control circuit. Telephone device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30049889A JPH0732417B2 (en) | 1989-11-17 | 1989-11-17 | Cordless telephone device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30049889A JPH0732417B2 (en) | 1989-11-17 | 1989-11-17 | Cordless telephone device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03160849A JPH03160849A (en) | 1991-07-10 |
| JPH0732417B2 true JPH0732417B2 (en) | 1995-04-10 |
Family
ID=17885537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30049889A Expired - Fee Related JPH0732417B2 (en) | 1989-11-17 | 1989-11-17 | Cordless telephone device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732417B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2830533B2 (en) * | 1991-08-23 | 1998-12-02 | 日本電気株式会社 | Wireless telephone equipment |
| JP2849300B2 (en) * | 1993-03-15 | 1999-01-20 | ローム株式会社 | Cordless telephone |
-
1989
- 1989-11-17 JP JP30049889A patent/JPH0732417B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03160849A (en) | 1991-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |