JPS64901B2 - - Google Patents
Info
- Publication number
- JPS64901B2 JPS64901B2 JP56157246A JP15724681A JPS64901B2 JP S64901 B2 JPS64901 B2 JP S64901B2 JP 56157246 A JP56157246 A JP 56157246A JP 15724681 A JP15724681 A JP 15724681A JP S64901 B2 JPS64901 B2 JP S64901B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- adapter
- main body
- volts
- supply voltage
- 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
Links
- 238000012423 maintenance Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Control Of Electrical Variables (AREA)
Description
【発明の詳細な説明】
本発明は車載用機器へ供給する電源電圧の切替
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching device for power supply voltage supplied to in-vehicle equipment.
自動車の電源電圧は直流12ボルトと24ボルトの
ものがあつて、乗用車級の車種では12ボルトのも
のが多い。例えば自動車電話サービスのように好
適な通信を提供する必要がある場合には、経済的
理由から車載用無線機は12ボルトと24ボルトに共
通に用意し、これにアダプタの付加によつて両者
に適合させることが要求される。しかしながら従
来では、このようにアダプタを付加して接続配線
を切替える場合には、前記車載用無線機の保守管
理に人手を要する問題がある。 The power supply voltage for automobiles is either 12 volts or 24 volts DC, and most passenger car models are 12 volts. For example, when it is necessary to provide suitable communication such as car phone service, for economic reasons, a car radio is prepared for both 12 volt and 24 volt, and an adapter is added to provide both 12 volt and 24 volt radios. Adaptation is required. However, conventionally, when adding an adapter and switching the connection wiring in this way, there is a problem in that maintenance and management of the vehicle-mounted radio equipment requires manpower.
そこで本発明は車載用機器を有する本体に、ア
ダプタの装着を検出して外部電源接接続端子から
車載用機器への接続をオフする切換手段を設ける
ことによつて単にアダプタを本体に装着するだけ
で、例えば12ボルトで動作する車載用機器を24ボ
ルトに自動的に切替えて従来の上記問題を回避し
たものであつて、以上本発明の一実施例を第１図
と第２図に基づいて説明する。 Therefore, the present invention provides a main body having an in-vehicle device with a switching means that detects attachment of the adapter and turns off the connection from the external power connection terminal to the in-vehicle device, so that the adapter can be simply attached to the main body. For example, in-vehicle equipment that operates at 12 volts is automatically switched to 24 volts to avoid the above-mentioned conventional problems.One embodiment of the present invention has been described above based on FIGS. 1 and 2. explain.
第１図は車載用無線機を内蔵した本体と電源
電圧変換用アダプタの外観を示し、第２図はそ
の構成を示す。１は電源電圧10.5〜15.0ボルトで
所定の性能を発揮する車載用無線機、２，３は本
体の外部電源接続端子、４，５は過電流から本
体を保護するフユーズ、６は電源を逆接続した
ときの本体保護用の電力ダイオード、７は主電
源スイツチ、８は本体側に設けられたマイクロ
スイツチ、９は車載用無線機１を過電圧から保護
するツエナーダイオード、１０は自動車バツテリ
ー、１１はアダプタに内蔵されたDCコンバー
タで、例えば24ボルトから12ボルトに電圧を変換
する。なおこれは６ボルトから12ボルトに変換さ
れる場合もあることは述べるまでもない。１２は
本体に設けたアダプタ取付けねじ孔、１３はア
ダプタを本体へ取付けるためのねじで、装着
状態においてねじ１３の先端が前記マイクロスイ
ツチ８の感知レバー８ａに当接してマイクロスイ
ツチ８のブレイク接点をオープンにするよう構成
されている。R1，R2，R3はレセプタクルで、本
体の前記アダプタ装着個所に設けられてお
り、アダプタ側のプラグP1.P2，P3とそれぞれ
電気的に接続可能に所定間隔で配設されている。
なお、ここでマイクロスイツチ８のブレイク接点
は外部電源接続端子２と車載用無線機１の電源端
子１４との間に直列に介装されている。またDC
コンバータ１１はプラグP1とP3間に24ボルトが
印加された時にプラグP2とP3間に12ボルトが発
生するよう構成されている。 Fig. 1 shows the external appearance of the main body with a built-in in-vehicle radio and a power supply voltage conversion adapter, and Fig. 2 shows its configuration. 1 is an in-vehicle radio that exhibits specified performance at a power supply voltage of 10.5 to 15.0 volts, 2 and 3 are external power connection terminals on the main unit, 4 and 5 are fuses that protect the main unit from overcurrent, and 6 is a reverse connection of the power supply. 7 is a main power switch, 8 is a micro switch provided on the main body side, 9 is a Zener diode to protect the car radio 1 from overvoltage, 10 is a car battery, and 11 is an adapter. The built-in DC converter converts the voltage from, for example, 24 volts to 12 volts. It goes without saying that this may also be converted from 6 volts to 12 volts. Reference numeral 12 is a screw hole for attaching the adapter to the main body, and reference numeral 13 is a screw for attaching the adapter to the main body. When the adapter is attached, the tip of the screw 13 comes into contact with the sensing lever 8a of the micro switch 8, and the break contact of the micro switch 8 is activated. It is configured to be open. R 1 , R 2 , and R 3 are receptacles, which are provided at the adapter installation locations on the main body, and are arranged at predetermined intervals so as to be electrically connectable to the plugs P 1 , P 2 , and P 3 on the adapter side, respectively. ing.
Note that the break contact of the micro switch 8 is interposed in series between the external power supply connection terminal 2 and the power supply terminal 14 of the vehicle radio 1. Also DC
Converter 11 is configured such that when 24 volts are applied between plugs P 1 and P 3 , 12 volts are generated between plugs P 2 and P 3 .
このように構成したため、自動車バツテリー１
０が12ボルトの場合はアダプタを本体に装着
せずにおき、自動車バツテリー１０のプラス側出
力は外部電源接続用端子２→フユーズ４→主電源
スイツチ７→マイクロスイツチ８のブレイク接点
→車載用無線機１の電源端子１４に接続され、主
電源スイツチ７のオンにより自動車バツテリー１
０から直接に車載用無線機１に12ボルトの電源電
圧が印加される。 With this configuration, the car battery 1
If 0 is 12 volts, leave the adapter unattached to the main body, and connect the positive output of the car battery 10 to external power connection terminal 2 → fuse 4 → main power switch 7 → break contact of micro switch 8 → car radio It is connected to the power terminal 14 of the vehicle 1, and the car battery 1 is connected when the main power switch 7 is turned on.
A power supply voltage of 12 volts is directly applied to the vehicle radio device 1 from zero.
自動車バツテリー１０が24ボルトの場合にはア
ダプタのプラグP1〜P3を本体のレセプタク
ルR1〜R3に挿入し、ねじ１３をねじ孔１２に締
めれば、ねじ１３の先端がマイクロスイツチ８の
ブレイク接点をオープンにして電源端子１４と主
電源スイツチ７の一端との接続を自動的にオフ
し、主電源の前記一端はレセプタクルR1→プラ
グP1→DCコンバータ１１の入力端子に接続され、
DCコンバータ１１の出力端子はプラグP2→レセ
プタクルR3→電源端子１４に接続され、一且DC
コンバータ１１で12ボルトに降圧された自動車バ
ツテリー１０の電源電圧が車載用無線機１に印加
される。このようにマイクロスイツチ８がアダプ
タの装着を検出してブレイク接点をオープンに
するため、従来のようにアダプタの着脱に際し
て本体の内部結線に手を加える必要がなく、保
守管理が容易である。 If the car battery 10 is 24 volts, insert the plugs P 1 to P 3 of the adapter into the receptacles R 1 to R 3 of the main body, tighten the screws 13 into the screw holes 12, and the tips of the screws 13 will fit into the micro switch 8. The connection between the power supply terminal 14 and one end of the main power switch 7 is automatically turned off by opening the break contact, and the one end of the main power supply is connected to the input terminal of the receptacle R 1 →plug P 1 →DC converter 11,
The output terminal of the DC converter 11 is connected to the plug P 2 → receptacle R 3 → power supply terminal 14, and one DC
The power supply voltage of the automobile battery 10, which has been stepped down to 12 volts by the converter 11, is applied to the in-vehicle radio device 1. In this way, the micro switch 8 detects attachment of the adapter and opens the break contact, so there is no need to modify the internal wiring of the main body when attaching or detaching the adapter as in the conventional case, and maintenance management is easy.
なお、上記実施例においてはねじ１３によつて
マイクロスイツチ８の感知レバー８ａを操作する
ものとして説明したが、プラグP1〜P3の何れか
又は別に設けたピン等によつて操作するようにし
てもよく、アダプタの装着を検出して回路を切
替える切換手段であればよい。また、プラグP1
〜P3の何れかをねじとしてアダプタを本体
に固定することもできる。 In the above embodiment, the sensing lever 8a of the micro switch 8 is operated by the screw 13, but it may be operated by any one of the plugs P1 to P3 or a separately provided pin. Any switching means that detects attachment of the adapter and switches the circuit may be used. Also plug P 1
The adapter can also be fixed to the main body using any of P3 as screws.
以上説明のように本発明の電源電圧切替装置に
よると、アダプタの取付けによつて自動的に電源
電圧の切替えができるため、車載用機器に対して
それぞれの電源電圧に対応したアダプタを用意し
ておくことによつて同一機能の車載用機器をそれ
ぞれの電源電圧に適合させることができ、経済的
に優れている。また内部回路もアダプタの装着に
よつて自動的に切替わるため保守管理も容易であ
つて、その工業的価値には大なるものがある。 As explained above, according to the power supply voltage switching device of the present invention, the power supply voltage can be automatically switched by attaching an adapter. By installing the same function, on-vehicle equipment with the same function can be adapted to each power supply voltage, which is economically advantageous. Furthermore, since the internal circuit is automatically switched when the adapter is attached, maintenance is easy, and its industrial value is great.
図面は本発明の一実施例を示し、第１図は本体
とアクプタの外観斜視図、第２図は第１図の内部
構成図である。
…本体、…電源電圧変換用アダプタ、１…
車載用無線機、２，３…外部電源接続端子、８…
マイクロスイツチ、１０…自動車バツテリー、１
１…DCコンバータ。
The drawings show one embodiment of the present invention, and FIG. 1 is an external perspective view of the main body and the actuator, and FIG. 2 is an internal configuration diagram of FIG. 1. ...Body, ...Power supply voltage conversion adapter, 1...
Vehicle radio, 2, 3...External power connection terminal, 8...
Micro switch, 10...Car battery, 1
1...DC converter.
Claims (1)
源接続端子を有する本体と、前記外部電源接続端
子へ所定規格電圧でない電源電圧を印加する場合
に前記本体に装着され電源電圧を所定規格電圧に
変換して前記車載用機器に供給するアダプタとを
設け、かつ前記本体にはアダプタの装着を検出し
て前記外部電源接続端子から車載用機器への接続
をオフする切換手段を設けたことを特徴とする電
源電圧切替装置。1 A main body having an in-vehicle device that operates at a predetermined standard voltage and an external power supply connection terminal, and a main body that is attached to the main body and converts the power supply voltage to the predetermined standard voltage when a power supply voltage other than the predetermined standard voltage is applied to the external power supply connection terminal. and an adapter for supplying the in-vehicle device to the in-vehicle device, and the main body is provided with a switching means for detecting attachment of the adapter and turning off the connection from the external power connection terminal to the in-vehicle device. Power supply voltage switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56157246A JPS5858829A (en) | 1981-10-01 | 1981-10-01 | Power source voltage switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56157246A JPS5858829A (en) | 1981-10-01 | 1981-10-01 | Power source voltage switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5858829A JPS5858829A (en) | 1983-04-07 |
| JPS64901B2 true JPS64901B2 (en) | 1989-01-09 |
Family
ID=15645433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56157246A Granted JPS5858829A (en) | 1981-10-01 | 1981-10-01 | Power source voltage switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5858829A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002036980A (en) * | 2000-07-21 | 2002-02-06 | Toshiba Corp | Car motor driving method and system |
| JP2011142768A (en) * | 2010-01-08 | 2011-07-21 | Tabuchi Electric Co Ltd | Electrical outlet for dc power feed system, power plug, switch, and the dc power feed system |
| JP6290007B2 (en) * | 2013-08-19 | 2018-03-07 | 松山株式会社 | Remote control device for agricultural machines |
-
1981
- 1981-10-01 JP JP56157246A patent/JPS5858829A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5858829A (en) | 1983-04-07 |
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