JPH063978B2 - Automatic power supply multiplexing device - Google Patents
Automatic power supply multiplexing deviceInfo
- Publication number
- JPH063978B2 JPH063978B2 JP61030054A JP3005486A JPH063978B2 JP H063978 B2 JPH063978 B2 JP H063978B2 JP 61030054 A JP61030054 A JP 61030054A JP 3005486 A JP3005486 A JP 3005486A JP H063978 B2 JPH063978 B2 JP H063978B2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- relay
- power
- lines
- load
- 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
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。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic power supply multiplexing device, and more particularly to an automatic power supply multiplexing device that switches a plurality of sets of power supply lines to automatically connect to a load.
コンピュ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
る冷却ファンなどの電源線を多重化することは、冷却フ
ァ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, various means have been devised as one of means for improving the reliability of the system by multiplexing main circuits or providing important equipment in duplicate. Multiplexing the power supply is also a significant effect as one such device. In particular, multiplexing the power supply lines such as the cooling fan mounted inside the equipment greatly contributes to the improvement of system reliability because the cooling fan is indispensable 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。As a multiplexer having such a function, there is an automatic power multiplexer that automatically switches a plurality of power lines to connect to a load.
すなわち、従来の自動電源多重化装置は第２図に示すよ
うに二組の電源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。リレーＲＬ５は接点ｒ５を持ち、リレー
ＲＬ６は接点ｒ６を持っている。That is, as shown in FIG. 2, the conventional automatic power supply multiplexer is composed of two relays RL5 and RL6 and three contacts when switching between two sets of power supplies E1 and E2. The relay RL5 has a contact point r5, and the relay RL6 has a contact point r6.
電源Ｅ１、にはリレーＲＬ５のコイルおよびリレーＲＬ
６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が直列に接続されている。そして電源Ｅ１に対し
て上記のロレー回路の負荷側にリレーＲＬ５のメーク接
点５１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。したがって電源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Ｅ１およびＥ２が短絡することはない。The coil of the relay RL5 and the relay RL are included in the power source E1.
The break contacts 55 of No. 6 are connected in series, and the coil of the relay RL6 and the break contact 56 of the relay RL5 are connected in series to the power source E2. The make contacts 51 and 52 of the relay RL5 are inserted into the load side of the Loray circuit with respect to the power source E1, and the make contacts 53 and 54 of the relay RL6 are inserted into the load side of the relay circuit with respect to the power source E2. It is included. Therefore, when the relay connected to one of the power supplies E1 and E2 is off, the relay connected to another power supply works to connect it to the load 20, and the power supplies E1 and E2 are not short-circuited.
上述したように自動電源多重化装置５０においては電源
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
オンとなって電源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。As described above, in the automatic power supply multiplexing device 50, when the power supplies E1 and E2 are both interrupted and then restored at the same time, RL5 and RL6 are turned on at the same time for a short time to short-circuit the power supplies E1 and E2. There is. When such a short circuit occurs, there is a drawback that the contacts of each relay are burnt out.
本発明の目的は複数組の電源が同時にオンとなってもそ
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
とによっ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。SUMMARY OF THE INVENTION It is an object of the present invention to provide an automatic power supply multiplexing device that avoids the above-mentioned drawbacks by configuring a relay circuit so that a plurality of sets of power supplies will not be short-circuited to each other even if they are turned on at the same time.
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第１のブレーク接点よりも電源
側に第ｍ＋１〜ｎ組の電源線に接続するリレーの第二の
ブレーク接点と直列に結線し、前記第一〜ｎ組の電源線
のうちの第ｍ組の電源線を第ｍ組の電源線が給電されて
いるかぎり前記負荷に接続し、かつ、前記第一〜ｍ−１
組の電源線と前記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 multiplexer of the present invention is an automatic power supply in which one coil of each relay is connected to each of the n power supply lines in order to connect one of the n power supply lines (n ≧ 2) to a load. In the multiplexer, the relays connected to the m-th (1 ≦ m ≦ n) power supply lines have make contacts on the m-th power supply lines.
Each of the power lines except the m-th set has a break contact, and the coil of the relay connected to the m-th set of power lines is a break contact of each relay connected to the first to m-1th set of power lines. A coil of the relay that is connected to the load side more than the load line and that is connected to the mth power supply line is a make contact of the relay that is connected to the mth power supply line and a relay that is connected to the m + 1st to nth power supply lines. Connected to the second break contact of the relay connected to the m + 1 to n-th power supply lines on the power supply side of the first break contact, and the m-th set of the first to n-th power supply lines Power line is connected to the load as long as the m-th set of power lines is fed, and the first to m-1
All the power supply lines of the set and the power supply lines of the m + 1 to n sets are not connected to the load.
以下、本発明の実施例について図面を参照しながら説明
する。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す回路図である。第１図
において自動電源多重化装置１０は電源Ｅ１または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 an embodiment of the present invention. In FIG. 1, the automatic power supply multiplexing device 10 has a power supply E1 or E2.
It has a function of automatically connecting to the load 20 by switching any one of the above.
リレーＲＬ１はリレーＲＬ２のブレーク接点19とともに
直列回路を構成し、その全体が電源Ｅ１に接続されてい
る。ｒ１，ｒ２はそれぞれリレーＲＬ１，ＲＬ２の
接点である。リレーＲＬ１のメーク接点１１および１２
は電源Ｅ１に対してリレーＲＬ１とリレーＲＬ２のブレ
ーク接点１９との直列回路の接続点Ｐ１より負荷側に挿
入されている。リレーＲＬ１のブレーク接点１３および
14は電源Ｅ２に挿入されている。リレーＲＬ２は電源Ｅ
２に接続されており、その接続点Ｐ２はリレー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。リレーＲＬ２のメーク接点１７および１８
はリレーＲＬ２の接続点Ｐ２よりも負荷側に挿入されて
いる。また、リレーＲＬ２のブレーク接点１５および１
６は電源Ｅ１に挿入され、リレーＲＬ１の接続点Ｐ１よ
りも負荷側に設けられている。The relay RL1 constitutes a series circuit together with the break contact 19 of the relay RL2, and the whole thereof is connected to the power source E1. r1 and r2 are contacts of the relays RL1 and RL2, respectively. Make contacts 11 and 12 of relay RL1
Is inserted on the load side from the connection point P1 of the series circuit of the relay RL1 and the break contact 19 of the relay RL2 with respect to the power source E1. The break contact 13 of the relay RL1 and
14 is inserted in the power supply E2. Relay RL2 is power source E
2 and its connection point P2 is on the load side with respect to the power supply E2 with respect to the break contacts 13 and 14 of the relay RL1. Make contacts 17 and 18 of relay RL2
Is inserted on the load side of the connection point P2 of the relay RL2. Also, the break contacts 15 and 1 of the relay RL2.
6 is inserted in the power source E1 and is provided on the load side with respect to the connection point P1 of the relay RL1.
電源Ｅ１およびＥ２は接続点Ｐ３において集線され、負
荷２０に接続されている。The power supplies E1 and E2 are concentrated at the connection point P3 and connected to the load 20.
このような構成において、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時は、リレーＲＬ
１，ＲＬ２のうちの動作時間の短いリレーが接続される
電源から負荷２０に電力が供給される。すなわち、リレ
ーＲＬ１の動作時間の方がリレーＲＬ２の動作時間より
短かい場合は、リレＲＬ１のメーク接点１１および１２
をメークして電源Ｅ１から負荷２０に電力を供給すると
ともに、リレーＲＬ１のブレーク接点１３および１４を
ブレークして、リレーＲＬ２を電源Ｅ２から切り離す。
この時リレーＲＬ２のメーク接点１７および１８はメー
クされていないので電源Ｅ１およびＥ２が短絡すること
はない。又、逆にリレーＲＬ２の動作時間の方がリレー
ＲＬ１の動作時間より短かい場合は、リレーＲＬ２のメ
ーク接点１７および１８をメークして電源Ｅ２から電力
を負荷２０に供給するとともに、リレーＲＬ２のブレー
ク接点１５および１６をブレークして、負荷２０を電源
Ｅ１から切り離とともに、ＲＬ２のブレーク接点１９を
ブレークして、リレーＲＬ１を電源Ｅ１から切り離す。
この時、リレーＲＬ１のメーク接点１１、および１２は
メークされていないので電源Ｅ１およびＥ２が短絡する
ことはない。In such a configuration, when the power supplies E1 and E2 both resume power supply from the power supply stop state, the relay RL
Electric power is supplied to the load 20 from a power source to which a relay having a short operating time of 1 and RL2 is connected. That is, when the operating time of the relay RL1 is shorter than the operating time of the relay RL2, the make contacts 11 and 12 of the relay RL1.
Is supplied to the load 20 from the power source E1 and the break contacts 13 and 14 of the relay RL1 are broken to disconnect the relay RL2 from the power source E2.
At this time, since the make contacts 17 and 18 of the relay RL2 are not made, the power sources E1 and E2 are not short-circuited. On the contrary, when the operating time of the relay RL2 is shorter than the operating time of the relay RL1, the make contacts 17 and 18 of the relay RL2 are made to supply the electric power from the power source E2 to the load 20 and the relay RL2. Break contacts 15 and 16 are broken to disconnect load 20 from power supply E1, and break contact 19 of RL2 is broken to disconnect relay RL1 from power supply E1.
At this time, since the make contacts 11 and 12 of the relay RL1 are not made, the power supplies E1 and E2 are not short-circuited.
また、リレーＲＬ１が動作して電源Ｅ１から電力を負荷
２０に供給している期間はリレーＲＬ１のブレーク接点
１３および１４により電源Ｅ２とリレーＲＬ２は切り離
されるので、電源Ｅ２には無関係に電源Ｅ１から電力を
負荷２０に供給する。Further, since the break contacts 13 and 14 of the relay RL1 separate the power source E2 and the relay RL2 while the relay RL1 is operating and supplying the power from the power source E1 to the load 20, the power source E1 is irrelevant from the power source E1. Electric power is supplied to the load 20.
また、電源Ｅ１の給電が中断した時電源Ｅ２が給電中で
あれば、リレーＲＬ１がオフとなるので、そのブレーク
接点１３および１４を経てリレーＲＬ２がオンとなる。
したがってリレー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。Further, when the power supply of the power source E1 is interrupted and the power source E2 is still supplying power, the relay RL1 is turned off, so that the relay RL2 is turned on via the break contacts 13 and 14.
Therefore, make contacts 17 and 18 of relay RL2 make to connect power supply 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
を再開しても、リレーＲＬ２のブレーク接点１９によ
り、電源Ｅ１とリレーＲＬ１は切り離されるので電源Ｅ
１には無関係に電源Ｅ２から電力を負荷２０に供給す
る。At this time, even if the power supply E1 that was interrupted in power supply is restored and power supply is restarted, the power supply E1 and the relay RL1 are separated by the break contact 19 of the relay RL2.
Electric power is supplied to the load 20 from the power source E2 regardless of 1.
さらに、負荷２０と電源の接続の切換え時には負荷２０
がいずれの電源にも接続されない時間が少しあるが、前
の説明でわかる通り、負荷２０と電源の接続の切換え回
数も最小限に抑えられる。Furthermore, when switching the connection between the load 20 and the power source, the load 20
Although there is a short period of time when the power source is not connected to any power source, as can be seen from the above description, the number of times of switching the connection between the load 20 and the power source can be minimized.
なお、本実施例では電源が２組の場合について説明した
がこれが３組以上になっても上記と同様にして自動電源
多重化装置を実現できる。In this embodiment, the case where the number of power sources is two has been described, but even if the number of power sources is three or more, an automatic power source multiplexing device can be realized in the same manner as above.
以上、説明したように本発明の自動電源多重化装置は複
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、さらに、負荷に対しては
瞬断となる切換えの回数も最少限にとどめるという効果
がある。As described above, the automatic power supply multiplexing device of the present invention can automatically switch a plurality of sets of power supplies without short-circuiting each other and connect one of them to a load, and further, there is a momentary interruption to the load. This has the effect of limiting the number of switching operations to a minimum.
さらに本発明の自動電源多重化装置は従来に較べてリレ
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装置が得られるという効果もあ
る。Further, the automatic power supply multiplexing device of the present invention does not require the addition of a relay as compared with the conventional device, so that there is an effect that a safe and highly reliable device can be obtained without increasing the manufacturing cost.
第１図は本発明の一実施例による自動電源多重化装置を
示す回路図、第２図は従来の自動電源多重化装置を示す
回路図である。 １０……自動電源多重化装置、２０……負荷、ＲＬ１〜
ＲＬ２……リレー、ｒ１……リレーＲＬ１の接点、ｒ
２……リレーＲＬ２の接点。FIG. 1 is a circuit diagram showing an automatic power supply multiplexer according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional automatic power supply multiplexer. 10 ... Automatic power supply multiplexing device, 20 ... Load, RL1 ...
RL2 ... relay, r1 ... relay RL1 contact point, r
2 ... Contact point of relay RL2.
Claims (1)
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
するリレーの第一のブレーク接点よりも電源側に第ｍ＋
１〜ｎ組の電源線に接続するリレーの第二のブレーク接
点と直列に結線し、 前記第一〜ｎ組の電源線のうちの第ｍ組の電源線を、第
ｍ組の電源線が給電されているかぎり前記負荷に接続
し、かつ前記第一〜ｍ−１組の電源線と前記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。1. An automatic power supply multiplexer in which one relay coil is connected to each of the n sets of power supply lines in order to connect one set among the n sets (n ≧ 2) of power supply lines to a load, The relays connected to the m-th (1 ≦ m ≦ n) power supply lines have make contacts on the m-th power supply lines and break contacts on all power supply lines except the m-th power supply line, The relay coil connected to the m power lines is the first to
The coil of the relay connected to the load side of the break contact of each relay connected to the m-1 set of power supply lines and connected to the mth set of power supply lines is the relay coil connected to the m set of power supply lines. The make contact and the m + th to the power supply side of the first break contact of the relay connected to the m + 1st to nth power supply lines
1-n sets of power lines are connected in series with a second break contact of the relay, and the m-th power lines of the first-n sets of power lines are connected to the m-th power lines. As long as power is supplied, it is connected to the load, and the first to m-1 sets of power supply lines and the m + 1 to n
An automatic power supply multiplexing device characterized in that not all of the power supply lines of the set are connected to the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030054A JPH063978B2 (en) | 1986-02-13 | 1986-02-13 | Automatic power supply multiplexing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61030054A JPH063978B2 (en) | 1986-02-13 | 1986-02-13 | Automatic power supply multiplexing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62188120A JPS62188120A (en) | 1987-08-17 |
| JPH063978B2 true JPH063978B2 (en) | 1994-01-12 |
Family
ID=12293110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61030054A Expired - Lifetime JPH063978B2 (en) | 1986-02-13 | 1986-02-13 | Automatic power supply multiplexing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH063978B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0223039A (en) * | 1988-07-11 | 1990-01-25 | Kubota Ltd | Battery charging controller for engine generator |
| JP7045091B2 (en) * | 2020-02-10 | 2022-03-31 | 株式会社スマートパワーシステム | Power supply control device and power supply control method |
-
1986
- 1986-02-13 JP JP61030054A patent/JPH063978B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62188120A (en) | 1987-08-17 |
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