JPH0345979B2 - - Google Patents
Info
- Publication number
- JPH0345979B2 JPH0345979B2 JP60045916A JP4591685A JPH0345979B2 JP H0345979 B2 JPH0345979 B2 JP H0345979B2 JP 60045916 A JP60045916 A JP 60045916A JP 4591685 A JP4591685 A JP 4591685A JP H0345979 B2 JPH0345979 B2 JP H0345979B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- relay
- power
- load
- lines
- 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 - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Direct Current Feeding And Distribution (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は自動電源多重化装置、特に複数組の電
源線を切換えて負荷に自動的に接続する自動電源
多重化装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic power supply multiplexing device, and particularly to an automatic power supply multiplexing device that switches a plurality of sets of power supply lines and automatically connects them to a load.
コンピユータなどのような情報機器においては
システムの信頼性を向上する手段の一つとして、
主要な回路を多重化したり重要な機器を二重に設
けたりして種々の工夫をしている。電源の多重化
もそのような工夫の一つとして効果の著しいもの
である。特に機器内部に取付けられる冷却フアン
などの電源線を多重化することは、冷却フアンが
システム稼働に必要不可欠であることから、シス
テムの信頼性の向上に大いに寄与している。
In information equipment such as computers, as a means to improve system reliability,
Various measures have been taken, such as multiplexing the main circuits and installing important equipment in duplicate. Multiplexing of power sources is one such measure that is highly effective. In particular, multiplexing power lines for cooling fans and the like installed inside equipment greatly contributes to improving system reliability, since cooling fans are essential for system operation.
このような機能を有する多重化装置として複数
の電源線を自動的に切換えて負荷に接続する自動
電源多重化装置がある。すなわち第２図に示すよ
うに、従来の自動電源多重化装置５０は二組の電
源Ｅ１およびＥ２を切換える場合二個のリレー
RL５およびRL６とそれぞれ三個づつの接点から
構成される。同図においてrl５およびrl６はそれ
ぞれリレーRL５およびRL６の接点を示す。 As a multiplexing device having such a function, there is an automatic power supply multiplexing device that automatically switches a plurality of power lines and connects them to a load. That is, as shown in FIG. 2, the conventional automatic power supply multiplexing device 50 uses two relays when switching between two sets of power supplies E1 and E2.
It consists of RL5 and RL6 and three contacts each. In the figure, rl5 and rl6 indicate contacts of relays RL5 and RL6, respectively.
同図において電源Ｅ１にはリレーRL５のコイ
ルおよびリレーRL６のブレーク接点５５が直列
に接続され、電源Ｅ２にはリレーRL６のコイル
およびリレーRL５のブレーク接点５６か直列に
接続されている。そして電源Ｅ１対して上記のリ
レー回路の負荷側にリレーRL５のメーク接点５
１および５２が装入され、電源Ｅ２に対して上記
のリレー回路の負荷側にリレーRL６のメーク接
点５３および５４が装入されている。したがつて
電源Ｅ１またはＥ２のいずれか一方に接続したリ
レーがオフのとき他方の電源に接続したリレーが
働いてそれを負荷２０に接続させており、電源Ｅ
１およびＥ２が短絡することはない。 In the figure, the coil of relay RL5 and the break contact 55 of relay RL6 are connected in series to power source E1, and the coil of relay RL6 and break contact 56 of relay RL5 are connected in series to power source E2. Then, make contact 5 of relay RL5 is placed on the load side of the above relay circuit with respect to power supply E1.
1 and 52 are inserted, and make contacts 53 and 54 of relay RL6 are inserted on the load side of the above-mentioned relay circuit with respect to power supply E2. Therefore, when the relay connected to either power source E1 or E2 is off, the relay connected to the other power source operates to connect it to the load 20, and the power source E
1 and E2 are never shorted.
しかしながらこのような自動電源多重化装置５
０において電源Ｅ１およびＥ２が共に中断してお
り、その後同時に復旧したときRL５およびRL６
は短時間ではあるが同時にオンとなつて電源Ｅ１
およびＥ２を短絡することがある。このような短
絡が発生すると各リレーの接点が焼損するという
欠点がある。 However, such automatic power multiplexing device 5
When power supplies E1 and E2 are both interrupted at 0 and then restored at the same time, RL5 and RL6
is turned on at the same time, albeit for a short time, and the power supply E1
and E2 may be shorted. If such a short circuit occurs, the contacts of each relay will burn out, which is a drawback.
本発明が解決しようとする問題点、換言すれば
本発明の目的は複数組の電源が同時にオンとなつ
てもそれらが互いに短絡しないようにリレー回路
を構成することによつて上記の欠点を回避した自
動電源多重化装置を提供することにある。
The problem to be solved by the present invention, in other words, the purpose of the present invention is to avoid the above-mentioned drawbacks by configuring a relay circuit so that even if multiple sets of power supplies are turned on at the same time, they will not short-circuit. The object of the present invention is to provide an automatic power supply multiplexing device that has the following features.
本発明の自動電源多重化装置は、ｎ組（ｎ≧
２）の電源線のなかの一組を負荷に接続するため
に前記ｎ組の電源線にそれぞれ一個のリレーのコ
イルを接続した自動電源多重化装置において、第
ｍ組（１≦ｍ≦ｎ）の電源線に接続したリレーは
前記第ｍ組の電源線にメーク接点を、前記第ｍ組
を除くすべての電源線にブレーク接点をそれぞれ
有し、前記第ｍ組の電源線に接続するリレーのコ
イルは第一〜ｍ−１組の電源線に接続した各リレ
ーのブレーク接点よりも前記負荷側に結線し、か
つ前記第ｍ組の電源線に接続するリレーのコイル
は前記第ｍ組の電源線に接続するリレーのメーク
接点および第ｍ＋１〜ｎ組の電源線に接続するリ
レーのブレーク接点よりも電源線に結線し、前記
第一〜ｍ−１組の電源線の給電がすべて中断した
ときに前記第ｍ組の電源線を前記負荷に接続し、
かつ前記第ｍ＋１〜ｎ組の電源線のすべてを前記
負荷に接続しないようにして構成される。
The automatic power supply multiplexing device of the present invention comprises n sets (n≧
2) In the automatic power supply multiplexing device in which one relay coil is connected to each of the n sets of power supply lines in order to connect one set of the power supply lines to a load, the mth group (1≦m≦n) The relay connected to the power line of the m-th group has a make contact on the power line of the m-th group, and a break contact on all the power lines except the m-th group, and the relay connected to the power line of the m-th group has The coils are connected closer to the load side than the break contacts of the relays connected to the first to m-1 sets of power supply lines, and the coils of the relays connected to the m-th set of power supply lines are connected to the m-th set of power supply lines. When the make contact of the relay connected to the power line and the break contact of the relay connected to the m+1 to n-th power line are connected to the power line, and the power supply to the first to m-1 power line is all interrupted. connecting the m-th set of power supply lines to the load;
Further, all of the m+1 to n-th power supply lines are not connected to the load.
次に、本発明の自動電源多重化装置の実施例に
ついて、図面を参照にしながら説明する。
Next, an embodiment of the automatic power supply multiplexing device of the present invention will be described with reference to the drawings.
第１図には本発明の一実施例を示す回路図であ
る。同図において自動電源多重化装置１０は電源
Ｅ１，Ｅ２のいずれか一方を切換えて負荷２０に
自動的に接続する機能を有する。 FIG. 1 is a circuit diagram showing one embodiment of the present invention. In the figure, an automatic power supply multiplexing device 10 has a function of switching one of the power supplies E1 and E2 to automatically connect it to a load 20.
リレーRL１は電源Ｅ１に接続してあり、電源
Ｅ１が供給されているときには常にオンしてい
る。rl１はリレーRL１の接点を示す。リレーRL
１のメーク接点１１および１２は電源Ｅ１に対し
てリレーRL１の接続点Ｐ１よりも負荷側に装入
する。リレーRL１のブレーク接点１３および１
４は電源Ｅ２に装入する。 Relay RL1 is connected to power source E1, and is always turned on when power source E1 is supplied. rl1 indicates a contact point of relay RL1. relay RL
The make contacts 11 and 12 of No. 1 are connected to the power source E1 on the load side of the connection point P1 of the relay RL1. Break contacts 13 and 1 of relay RL1
4 is inserted into the power supply E2.
リレーRL２は電源Ｅ２に接続してあり、その
接続点Ｐ２は上記のリレーRL１のブレーク接点
１３および１４よりも電源Ｅ２に対して負荷側に
ある。rl２はリレーRL２の接点を示す。リレー
RL２のメーク接点１７および１８はリレーRLの
接続点Ｐ２よりも負荷側に装入する。またリレー
RL２のブレーク接点１５および１６は電源Ｅ１
に装入し、リレーRL１の接続点Ｐ１よりも負荷
側にある。 Relay RL2 is connected to power source E2, and its connection point P2 is closer to the load side of power source E2 than break contacts 13 and 14 of relay RL1. rl2 indicates a contact point of relay RL2. relay
Make contacts 17 and 18 of RL2 are inserted closer to the load side than connection point P2 of relay RL. Also relay
Break contacts 15 and 16 of RL2 are connected to power supply E1
and is located on the load side from the connection point P1 of relay RL1.
上記の配線を経た電源Ｅ１およびＥ２を接続点
Ｐ３において集線して負荷２０に接続する。 The power supplies E1 and E2 that have passed through the wiring described above are converged at a connection point P3 and connected to the load 20.
このような自動電源多重化装置１０は電源Ｅ１
およびＥ２が給電しているときは常に電源Ｅ１を
負荷２０接続する。すなわち電源Ｅ１給電中はリ
レーRL１がオンとなり、リレーRL１のブレーク
接点１３および１４がブレークしてリレーRL２
をオフにする。同時にリレーRL１のメーク接点
１１および１２がメークし、さらにリレーRL２
がオフしているのでそのブレーク接点１５および
１６を経て電源Ｅ１を負荷２０に接続する。 Such an automatic power supply multiplexing device 10 has a power supply E1
When E2 is supplying power, the power source E1 is always connected to the load 20. In other words, while power supply E1 is being supplied, relay RL1 is turned on, break contacts 13 and 14 of relay RL1 are broken, and relay RL2 is turned on.
Turn off. At the same time, make contacts 11 and 12 of relay RL1 are made, and then relay RL2 is made.
is off, the power source E1 is connected to the load 20 via its break contacts 15 and 16.
また電源Ｅ１の給電が中断したとき電源Ｅ２が
給電中であれば、リレーRL１オフとなるのでそ
のブレーク接点１３および１４を経てリレーRL
２がオンとなる。したがつてリレーRL２のメー
ク接点１７および１８がメークして電源Ｅ２を負
荷２０に接続する。 In addition, if power supply E2 is supplying power when power supply E1 is interrupted, relay RL1 is turned off, so relay RL is passed through break contacts 13 and 14.
2 is turned on. Therefore, make contacts 17 and 18 of relay RL2 are made to connect power source E2 to load 20.
このとき給電が中断していた電源Ｅ１が復旧し
て給電を再開するとリレーRL１がオンとなるの
でそのメーク接点１１および１２をメークすると
同時にブレーク接点１３および１４をブレーク
し、リレーRL２をオフにする。そしてリレーRL
２のブレーク接点がメーク状態となるので電源Ｅ
１が負荷２０切換わる。 At this time, when the power supply E1, whose power supply was interrupted, is restored and resumes power supply, relay RL1 is turned on, which closes its make contacts 11 and 12, simultaneously breaks its break contacts 13 and 14, and turns off relay RL2. . and relay RL
Since the break contact of 2 is in the make state, the power supply E
1 is switched to load 20.
さらに電源Ｅ１およびＥ２が共に給電停止の状
態から同時に給電再開したときには、各リレー
RL１およびRL２はそれぞれのブレーク接点をブ
レークしてからメーク接点をメークするように作
動するもので電源Ｅ１およびＥ２が短絡すること
はない。 Furthermore, when both power supplies E1 and E2 resume power supply at the same time from a state where power supply has stopped, each relay
RL1 and RL2 operate to break their respective break contacts and then make their make contacts, so that the power supplies E1 and E2 will not be short-circuited.
なお上記では電源が２組の場合について説明し
たが、これが３組以上になつても上記と同様にし
て自動電源多重化装置を実現することができる。 Note that although the case where there are two sets of power supplies has been described above, even if there are three or more sets, an automatic power supply multiplexing device can be realized in the same manner as described above.
本発明の自動電源多重化装置によれば複数組の
電源を互いに短絡させることなく自動的に切換え
てその一つを負荷に接続できるという効果があ
る。
According to the automatic power supply multiplexing device of the present invention, there is an effect that a plurality of sets of power supplies can be automatically switched without short-circuiting each other, and one of them can be connected to a load.
さらに従来の自動電源多重化装置に較べてリレ
ーを追加する必要がないので製造原価を増加させ
ずに安全にして信頼性の高い自動電源多重化装置
が得られるという効果もある。 Furthermore, compared to conventional automatic power supply multiplexing devices, there is no need to add any relays, so there is an advantage that a safe and highly reliable automatic power supply multiplexing device can be obtained without increasing manufacturing costs.
第１図は本発明の自動電源多重化装置の一実施
例を示す回路図、第２図は従来の自動電源多重化
装置の一例を示す回路図である。
１０，５０……自動電源多重化装置、２０……
負荷、RL１，RL２，RL５，RL６……リレー、
rl１，rl２，rl５，rl６……接点、Ｅ１，Ｅ２…
…電源、Ｐ１，Ｐ２……接続点、１１，１２，１
７，１８，５１，５２，５３，５４……メーク接
点、１３，１４，１５，１６，５５，５６……ブ
レーク接点。
FIG. 1 is a circuit diagram showing an embodiment of an automatic power supply multiplexing device of the present invention, and FIG. 2 is a circuit diagram showing an example of a conventional automatic power supply multiplexing device. 10, 50... automatic power supply multiplexing device, 20...
Load, RL1, RL2, RL5, RL6...Relay,
rl1, rl2, rl5, rl6...Contact, E1, E2...
...Power supply, P1, P2... Connection point, 11, 12, 1
7, 18, 51, 52, 53, 54...Make contact, 13, 14, 15, 16, 55, 56...Break contact.
Claims (1)
に接続するために前記ｎ組の電源線にそれぞれ一
個のリレーのコイルを接続した自動電源多重化装
置において、 第ｍ組（１≦ｍ≦ｎ）の電源線に接続したリレ
ーは前記第ｍ組の電源線にメーク接点を、前記第
ｍ組を除くすべての電源線にブレーク接点をそれ
ぞれ有し、 前記第ｍ組の電源線に接続するリレーのコイル
は第一〜ｍ−１組の電源線に接続した各リレーの
ブレーク接点よりも前記負荷側に結線し、かつ前
記第ｍ組の電源線に接続するリレーのコイルは前
記第ｍ組の電源線に接続するリレーのメーク接点
および第ｍ＋１〜ｎ組の電源線に接続するリレー
のブレーク接点よりも電源側に結線し、 前記第一〜ｍ−１組の電源線の給電がすべて中
断したときに前記第ｍ組の電源線を前記負荷に接
続し、かつ前記第ｍ＋１〜ｎ組の電源線のすべて
を前記負荷に接続しないことを特徴とする自動電
源多重化装置。[Claims] 1. An automatic power supply multiplexing device in which one relay coil is connected to each of the n sets of power supply lines in order to connect one set of the n sets of power supply lines (n≧2) to a load. , the relay connected to the m-th group (1≦m≦n) of power lines has a make contact on the m-th group of power lines, and a break contact on all the power lines except the m-th group, The coil of the relay connected to the m-th group of power supply lines is connected to the load side of the break contact of each relay connected to the first to m-1 sets of power supply lines, and is connected to the m-th group of power supply lines. The coil of the relay to be connected is connected to the power supply side of the make contact of the relay connected to the power supply line of the m-th group and the break contact of the relay connected to the power supply line of the m+1 to n-th group, and The mth set of power supply lines is connected to the load when all power supply lines of one set are interrupted, and all of the m+1 to nth sets of power supply lines are not connected to the load. Automatic power multiplexer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045916A JPS61207135A (en) | 1985-03-08 | 1985-03-08 | Automatic power source multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60045916A JPS61207135A (en) | 1985-03-08 | 1985-03-08 | Automatic power source multiplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61207135A JPS61207135A (en) | 1986-09-13 |
| JPH0345979B2 true JPH0345979B2 (en) | 1991-07-12 |
Family
ID=12732570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60045916A Granted JPS61207135A (en) | 1985-03-08 | 1985-03-08 | Automatic power source multiplexer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61207135A (en) |
-
1985
- 1985-03-08 JP JP60045916A patent/JPS61207135A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61207135A (en) | 1986-09-13 |
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