JPH03215122A - power display device - Google Patents
power display deviceInfo
- Publication number
- JPH03215122A JPH03215122A JP2009793A JP979390A JPH03215122A JP H03215122 A JPH03215122 A JP H03215122A JP 2009793 A JP2009793 A JP 2009793A JP 979390 A JP979390 A JP 979390A JP H03215122 A JPH03215122 A JP H03215122A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- voltage
- resistor
- display device
- power
- 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
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
Description
【発明の詳細な説明】
、卒業上の利用分野］
この発明は、電圧の異なる電源の電圧が確立しているか
否かを判別する＠ｍ表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Use] The present invention relates to an @m display device that determines whether or not voltages of power supplies with different voltages are established.
第２図は電源表示装置の従来例を示した回路図である。 FIG. 2 is a circuit diagram showing a conventional example of a power supply display device.
この第２図において、電源表示装置１０には外部からの
第１給電ケーブル５を接続するための端子台１１が設け
られており、この第１給電ケーブル５の反対側に接続し
ている、図示していない電源からの電圧をこの電源表示
装置１０の内部に導いて、この電源の電圧が確立してい
るか否かを表示するようにしている．
ところでこの第１給電ケーブル５に接続する電源が複数
であって、それぞれの電圧が異なっている場合には、こ
の異なる電圧に対応できるように、電源表示装ｆｆｉｌ
Ｏの回路を構成しておかなければならない。In FIG. 2, the power supply display device 10 is provided with a terminal block 11 for connecting a first power supply cable 5 from the outside, and the terminal block 11 is connected to the opposite side of the first power supply cable 5. A voltage from a power supply (not shown) is guided into the power supply display device 10 to display whether or not the voltage of this power supply is established. By the way, if there are multiple power supplies connected to this first power supply cable 5 and each voltage is different, the power supply display device
A circuit for O must be configured.
たとえば電圧が２００ Ｖの第１電源があって、これか
らの電力を第１給電ケーブル５で給電し、電圧がＩＯＯ
Ｖの第２電源からの電力を第２給電ケーブル６で給電す
る場合を考える。For example, there is a first power supply with a voltage of 200 V, and the power from this is supplied through the first power supply cable 5, and the voltage is IOO.
Consider a case where power from the second power source of V is supplied by the second power supply cable 6.
第２図は第１電源からの２００■電圧が第１給電ケーフ
ル５を介して電源表示装置１０に入力している場合であ
る。この電源表示装置ｌＯの内部には電圧検出２３１５
と、これで動作するリレー１６とがあって、リレー接点
１６Ａは電圧が２００■の場合に図示の状態にある。従
って表示灯１２には２００■用抵抗ｌ３を介して２００
■電圧が印加される。また図示していない第２給電ケー
ブル６を接続して、第２電源からのＩｎＶ電圧を印加す
ると、電圧検出器Ｉ５とリレー１６との働きにより、リ
レー接点１６Ａは図示の状態から切替わって、１００■
用抵抗ｌ４を介して表示灯１２を点灯する。ここで２０
０ｖ用抵抗１３と１００ Ｖ用抵抗１４とは、いずれも
表示灯ｌ２の電圧が一定となるように、異った抵抗値を
有している。FIG. 2 shows a case where 200 cm voltage from the first power supply is input to the power supply display device 10 via the first power supply cable 5. In FIG. This power display device IO has a voltage detection 2315 inside.
There is a relay 16 that operates with this, and the relay contact 16A is in the state shown in the figure when the voltage is 200 cm. Therefore, the indicator light 12 is connected to the 200Ω resistor l3 through the 200Ω resistor l3.
■Voltage is applied. When the second power supply cable 6 (not shown) is connected and an InV voltage from the second power source is applied, the relay contact 16A is switched from the state shown in the drawing due to the action of the voltage detector I5 and the relay 16. 100■
The indicator light 12 is turned on via the resistor l4. 20 here
The 0V resistor 13 and the 100V resistor 14 both have different resistance values so that the voltage of the indicator lamp l2 is constant.
かくして表示灯１２は、第１電源または第２電源のいず
れかが接続されたときに、電圧が確立しでいれば同し明
るさで点灯して、電ａ電圧の有無を表示する．
〔発明が解決しようとする課題〕
第２図に示す従来の電源表示装置は、印加される電圧値
を検出し、その電圧値に対応した直列抵抗を選択するこ
とで表示手段には一定電圧が印加されるようにしている
ので、電圧検出手段や抵抗切換え手段などが必要であり
、回路が複雑になる欠点を有する。さらに、これらが故
障した場合でも表示灯ｌ２や抵抗ｌ３、１４などが焼損
しないように、図示はしていないが保護回路を用意する
必要があり、装置が更に複雑・高価になる欠点も存する
。Thus, when either the first power source or the second power source is connected, the indicator light 12 lights up with the same brightness as long as the voltage has been established to indicate the presence or absence of the electric voltage. [Problems to be Solved by the Invention] The conventional power supply display device shown in FIG. 2 detects the applied voltage value and selects a series resistor corresponding to the voltage value, so that a constant voltage is applied to the display means. Since the voltage is applied, voltage detection means, resistance switching means, etc. are required, which has the drawback of complicating the circuit. Furthermore, it is necessary to prepare a protection circuit (not shown) so that the indicator lamp l2, resistors l3, 14, etc. do not burn out even if these break down, and there is also the disadvantage that the device becomes more complicated and expensive.
そこでこの発明の目的は、電圧の異なる複数の＠．源に
対して、電圧が確立しているか否かを判別するｔｉ源表
示装置を簡素に構成しようとするものである。Therefore, an object of the present invention is to provide a plurality of @. The present invention aims to simply configure a ti source display device that determines whether or not a voltage is established with respect to a source.
上記の目的を達成するために、この発明の＄ｌｉｆｉ表
示装置は、第１電源に接続した第１給電ケ−フルに接続
して、またはこの第１電源よりも低い電圧の第２電源に
接続した第２給電ケーブルに接続して、前記いずれかの
電源の電圧の有無を表示する電源表示装置において、前
記電源表示装置は電源表示手段の一端を第２外線端子に
接続し、この電源表示手段の他端は第１抵抗を介して第
１外線端子に接続し、かつ、これら電源表示手段と第１
抵抗との結合点に接続した第２抵抗の他端を第３外ｖＡ
端子に接続して構成し、前記第１給電ケーブルは当該電
源表示装置の第１、第２外線端子に接続し、前記第２給
電ケーブルはこの電源表示装置の第１、第２外線端子に
接続するとともに第１外線端子と第３外線端子とを渡り
線で接続するものとする。In order to achieve the above object, the $lifi display device of the present invention can be connected to a first power supply cable connected to a first power supply, or connected to a second power supply having a lower voltage than this first power supply. In the power supply display device connected to a second power supply cable connected to the second power supply cable to display the presence or absence of voltage of one of the power supplies, the power supply display device has one end of the power supply display means connected to a second external line terminal, and the power supply display means The other end is connected to the first external line terminal via the first resistor, and the power supply display means and the first
Connect the other end of the second resistor connected to the connection point with the resistor to the third external vA
The first power supply cable is connected to the first and second external terminals of the power display device, and the second power supply cable is connected to the first and second external terminals of the power display device. At the same time, the first external line terminal and the third external line terminal are connected by a crossover wire.
〔作用］
この発明は、複数の電源のうちの高い電圧の第１電源に
対しては、電源表示手段に第１抵抗を直列接続して、１
Ｂ表示手段に所定電圧が印加されるようにするが、低い
電圧の第２電源に対しては、前記の第１抵抗に第２抵抗
を並列接続することで合計抵抗値を低下させて、電源表
示手段への印加電圧を高電圧の第１電源の場合と同じ債
にする。[Function] The present invention connects a first resistor in series to the power supply display means for a first power supply having a high voltage among a plurality of power supplies.
A predetermined voltage is applied to the B display means, but for a second power source with a low voltage, a second resistor is connected in parallel to the first resistor to reduce the total resistance value, and the power source is The voltage applied to the display means is the same as that of the high voltage first power source.
またこの低い電圧の第２電源の場合は、第２給電・５−
−ブルにあらかしめ渡り線を用意してお《ことで、前述
した第１抵抗と第２抵抗との並列接続を容易ならしめる
ものである。In addition, in the case of this low voltage second power supply, the second power supply 5-
- By preparing a crossover wire in advance, it is possible to easily connect the first resistor and the second resistor in parallel.
（実施例〕
第１図は本発明の実施例をあらわした回路図であって、
第１図（イ）は高電圧の第１電源を、第１図（口）は低
電圧の第２電源を接続した場合を示している。(Embodiment) FIG. 1 is a circuit diagram showing an embodiment of the present invention,
FIG. 1(A) shows a case where a high voltage first power source is connected, and FIG. 1(X) shows a case where a low voltage second power source is connected.
第２図の従来例の場合と同様に、第１電源はその電圧が
２００■で第２電源の電圧は１００ Ｖであるとする。As in the case of the conventional example shown in FIG. 2, it is assumed that the voltage of the first power supply is 200V and the voltage of the second power supply is 100V.
本発明にもとづく電源表示装置２ｏは、給電ケーブルを
接続するための第Ｉ外線端子２１Ａ、第２外線端子２１
Ｂ、第３外線端子２１Ｃとを備えた端子台２１と、表示
灯２２、第１抵抗２３ならびに第２抵抗２４とで構成し
ており、第１抵抗２３と表示灯２２との直列回路の両端
が第１外線端子２１Ａと第２外線端子２１Ｂとに接続さ
れており、さらに第１抵抗２３と表示灯２２との結合点
に接続した第２抵抗２４の他端を第３外線端子２１Ｃに
接続している。The power supply display device 2o based on the present invention includes a first external line terminal 21A for connecting a power supply cable, and a second external line terminal 21A for connecting a power supply cable.
B, a terminal block 21 equipped with a third external line terminal 21C, an indicator light 22, a first resistor 23, and a second resistor 24, and both ends of the series circuit of the first resistor 23 and the indicator light 22 is connected to the first external line terminal 21A and the second external line terminal 21B, and the other end of the second resistor 24 connected to the connection point between the first resistor 23 and the indicator light 22 is connected to the third external line terminal 21C. are doing.
ここで表示灯２２に印加する電圧をＥとすると、第１抵
抗２３は、（２００−Ｅ）ボルトの電圧降下をη，−シ
るようにその抵抗値を定める。さらにこの第１抵抗２３
と第２抵抗２４とを並列接続したときに、この揺列抵抗
回路が（１００−Ｅ）ボルトの電圧降Ｆを住しるように
第２抵抗２４の抵抗値を定めておく。Here, if the voltage applied to the indicator lamp 22 is E, the resistance value of the first resistor 23 is determined so as to reduce the voltage drop of (200-E) volts by η,-. Furthermore, this first resistor 23
The resistance value of the second resistor 24 is determined so that when the resistor 24 and the resistor 24 are connected in parallel, the oscillating resistor circuit has a voltage drop F of (100-E) volts.
第１図（イ）に示すように、第１給電ケーブルを第１外
線端子２１Ａと第２外線端子２１Ｂに接続すると、図示
していない２００ボルトの第１電源が接続されて、表示
灯にはＥなる電圧が印加されることになる。As shown in FIG. 1(A), when the first power supply cable is connected to the first external line terminal 21A and the second external line terminal 21B, the first power source of 200 volts (not shown) is connected, and the indicator light is A voltage of E will be applied.
また第１図（口）に示すように、１００ボルトの第２電
源の場合は、第２給電ケーブル６を第１外線端子２１Ａ
と第２外線端子２１Ｂに接続するとともに、渡り線７で
第ｌ外線端子２１Ａと第３外線端子２ＩＣとを結合する
ことで、第１抵抗２３と第２抵抗２４とが並列接続とな
り、前述したように表示灯２２にはＥなる電圧が印加さ
れることとなる．なお、渡り線７の一端をあらかじめ第
２給電ケーブル６の一方の線に接続しておくならば、こ
の渡り線７の接続忘れを防くことができる。In addition, as shown in FIG. 1 (opening), in the case of a 100 volt second power supply, the second power supply cable 6 is connected to the first external line terminal 21A.
By connecting the first external line terminal 21A and the third external line terminal 2IC with the crossover wire 7, the first resistor 23 and the second resistor 24 are connected in parallel, and the above-mentioned Thus, a voltage of E is applied to the indicator lamp 22. Note that if one end of the crossover wire 7 is connected to one line of the second power supply cable 6 in advance, forgetting to connect the crossover wire 7 can be prevented.
この発明によれば、電源表示手段に直列に第１抵抗を接
続することで、高電圧の第１電源を接続したときは、こ
の第１抵抗の電圧降下で電源表示手段の印加電圧を所定
値にする。また低電圧の第２電源を接続するときは、こ
の第１抵抗に第２抵抗を並列接続することで合成抵抗値
を小さくして、電源表示手段の印加電圧を所定値に維持
するので、従来のように電圧検出手段や切換手段が不要
になり、電源表示装置の回路構成を簡素にできる効果が
得られる．According to this invention, by connecting the first resistor in series with the power supply display means, when a high voltage first power supply is connected, the voltage applied to the power supply display means is set to a predetermined value by the voltage drop across the first resistor. Make it. Furthermore, when connecting a low-voltage second power source, a second resistor is connected in parallel to the first resistor to reduce the combined resistance value and maintain the voltage applied to the power supply display means at a predetermined value. This eliminates the need for voltage detection means and switching means, resulting in the effect of simplifying the circuit configuration of the power display device.
第１図は本発明の実施例をあらわした回路図、第２図は
ｉｉｉ！ｌ表示装置の従来例を示した回路図である．
５・・・第１給電ケーブル、６・・・第２給電ケーブル
、７・・・渡り線、１０． ２０・・・電源表示装置、
１１． ２１・・・端子台、１２． ２２・・・表示灯
、１３・・・２００ Ｖ用抵抗、１４・・・１００ Ｖ
用抵抗、ｌ５・・・電圧検出器、ｌ６・・・リレー、ｌ
６Ａ
リ
レー接点、
２１Ａ
・・第
ｌ外線端子、
２１Ｂ・・・第
２外線端子、
２ＩＣ・・第３外線端子、
２３・・・第
ｌ
抵抗、
第
１
図Fig. 1 is a circuit diagram showing an embodiment of the present invention, and Fig. 2 is iii! 1 is a circuit diagram showing a conventional example of a display device. 5... first power supply cable, 6... second power supply cable, 7... crossover wire, 10. 20...Power display device,
11. 21...Terminal block, 12. 22... Indicator light, 13... Resistor for 200 V, 14... 100 V
Resistor, l5...voltage detector, l6...relay, l
6A relay contact, 21A...lth external line terminal, 21B...second external line terminal, 2IC...third external line terminal, 23...lth resistor, Fig. 1
Claims (1)
またはこの第１電源よりも低い電圧の第２電源に接続し
た第２給電ケーブルに接続して、前記いずれかの電源の
電圧の有無を表示する電源表示装置において、前記電源
表示装置は、電源表示手段の一端を第２外線端子に接続
し、この電源表示手段の他端は第１抵抗を介して第１外
線端子に接続し、かつ、これら電源表示手段と第１抵抗
との結合点に接続した第２抵抗の他端を第３外線端子に
接続して構成し、前記第１給電ケーブルは当該電源表示
装置の第１、第２外線端子に接続し、前記第２給電ケー
ブルはこの電源表示装置の第１、第２外線端子に接続す
るとともに第１外線端子と第３外線端子とを渡り線で接
続することを特徴とする電源表示装置。1) Connect to the first power supply cable connected to the first power supply,
Alternatively, in a power supply display device that is connected to a second power supply cable connected to a second power supply having a voltage lower than that of the first power supply, and displays the presence or absence of a voltage of one of the power supplies, the power supply display device is configured to display a power supply display device. One end of the means is connected to a second external line terminal, and the other end of the power indicating means is connected to the first external line terminal via a first resistor and connected to a connection point between the power indicating means and the first resistor. The other end of the second resistor is connected to a third external line terminal, the first power supply cable is connected to the first and second external line terminals of the power supply display device, and the second power supply cable is connected to the power supply display device. A power supply display device, characterized in that it is connected to first and second outside line terminals of the device, and the first outside line terminal and third outside line terminal are connected by a crossover wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009793A JPH03215122A (en) | 1990-01-19 | 1990-01-19 | power display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009793A JPH03215122A (en) | 1990-01-19 | 1990-01-19 | power display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03215122A true JPH03215122A (en) | 1991-09-20 |
Family
ID=11730088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009793A Pending JPH03215122A (en) | 1990-01-19 | 1990-01-19 | power display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03215122A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5468423A (en) * | 1992-02-07 | 1995-11-21 | The Clorox Company | Reduced residue hard surface cleaner |
| US5817615A (en) * | 1992-02-07 | 1998-10-06 | The Clorox Company | Reduced residue hard surface cleaner |
| US5851981A (en) * | 1995-03-24 | 1998-12-22 | The Clorox Company | Reduced residue hard surface cleaner |
-
1990
- 1990-01-19 JP JP2009793A patent/JPH03215122A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5468423A (en) * | 1992-02-07 | 1995-11-21 | The Clorox Company | Reduced residue hard surface cleaner |
| US5817615A (en) * | 1992-02-07 | 1998-10-06 | The Clorox Company | Reduced residue hard surface cleaner |
| US5851981A (en) * | 1995-03-24 | 1998-12-22 | The Clorox Company | Reduced residue hard surface cleaner |
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