CN110571919B - Dual-power switching distributor - Google Patents
Dual-power switching distributor Download PDFInfo
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- CN110571919B CN110571919B CN201910962104.3A CN201910962104A CN110571919B CN 110571919 B CN110571919 B CN 110571919B CN 201910962104 A CN201910962104 A CN 201910962104A CN 110571919 B CN110571919 B CN 110571919B
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- 230000009977 dual effect Effects 0.000 claims description 7
- 230000007717 exclusion Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Direct Current Feeding And Distribution (AREA)
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Abstract
The invention discloses a double-power-supply switching distributor which is respectively connected with a first external power supply, a second external power supply and electric equipment, wherein the double-power-supply switching distributor comprises a first power supply connection module, a second power supply connection module, an electric equipment connection module and a double-pole double-throw relay; the input end of the first power supply connection module is connected with a first external power supply, and the output end of the first power supply connection module is connected with the first input end of the double-pole double-throw relay; the input end of the second power supply connection module is connected with a second external power supply, and the output end of the second power supply connection module is connected with the second input end of the double-pole double-throw relay; the input end of the electrical appliance connecting module is connected with the output end of the double-pole double-throw relay, and the output end of the electrical appliance connecting module is connected with electrical equipment. The device has the advantages of simple structure, small occupied area and simple wiring, and can effectively reduce the maintenance cost.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a dual-power switching distributor.
Background
In the construction of data center and communication computer lab, for guaranteeing that their internally mounted's electrical equipment supplies power reliably, all design double-circuit power supply scheme usually, however most electrical equipment all only has a power source, and this just needs additionally to arrange one set of dual supply auto-change over device before electrical equipment power source, adopts the scheme of installing the ATS switch additional in the rack usually, and the ATS switch is bulky, can occupy more rack space usually, and has increased the complexity of construction wiring.
In addition, the construction of a data center and a communication machine room requires high space utilization rate, and the existing scheme of additionally arranging an ATS switch in a cabinet has large occupied area and complex wiring, so that the space utilization rate of the data center and the communication machine room can be reduced, the fault-tolerant rate of a double-circuit power supply scheme can be reduced due to the complex wiring, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to provide a dual-power switching distributor which is small in occupied space, simple in wiring and used for uninterruptedly supplying power to electrical appliances.
In order to achieve the purpose, the invention provides the following scheme:
a dual-power switching distributor is respectively connected with a first external power supply, a second external power supply and electric equipment, and comprises a first power supply connection module, a second power supply connection module, an electric equipment connection module and a double-pole double-throw relay;
the input end of the first power supply connection module is connected with the first external power supply, and the output end of the first power supply connection module is connected with the first input end of the double-pole double-throw relay;
the input end of the second power supply connection module is connected with the second external power supply, and the output end of the second power supply connection module is connected with the second input end of the double-pole double-throw relay;
the input end of the electrical appliance connecting module is connected with the output end of the double-pole double-throw relay, and the output end of the electrical appliance connecting module is connected with electrical equipment;
the double-pole double-throw relay is used for automatically controlling the circuit conduction between the input end of the electrical appliance connecting module and the output end of the first power supply connecting module or the output end of the second power supply connecting module according to the electric energy output by the first power supply connecting module and the second power supply connecting module.
Preferably, the double-pole double-throw relay comprises a first relay, a second relay, a third relay and a fourth relay;
the output end of the first power supply connection module is connected with the first relay;
the output end of the second power supply connection module is connected with the second relay;
the input end of the electrical appliance connecting module is respectively connected with the first relay and the second relay;
the third relay and the fourth relay form mutual exclusion connection and are respectively connected to the first relay and the second relay;
the mutual exclusion connection is that only one coil of the relay passes through the third relay and the fourth relay at the same time.
Preferably, the positive electrode of the output end of the first power supply connection module is connected with the common end of the first group of relay contacts of the first relay;
and the negative electrode of the output end of the first power supply connection module is respectively connected with the common end of the second group of relay contacts of the first relay and the negative electrode of the coil of the first relay.
Preferably, the positive electrode of the output end of the second power supply connection module is connected with the common end of the first group of relay contacts of the second relay;
and the negative electrode of the output end of the second power supply connection module is respectively connected with the common end of the second group of relay contacts of the second relay and the negative electrode of the coil of the second relay.
Preferably, the anode of the input end of the electrical appliance connection module is connected with the normally open contacts of the first group of relay contacts of the first relay and the normally open contacts of the first group of relay contacts of the second relay respectively;
and the cathode of the input end of the electrical appliance connecting module is respectively connected with the normally open contacts of the first group of relay contacts of the first relay and the normally open contacts of the second group of relay contacts of the second relay.
Preferably, the common end of the second group of relay contacts of the third relay is connected with the positive electrode of the coil of the fourth relay;
the common end of the second group of relay contacts of the fourth relay is connected with the positive electrode of the coil of the third relay;
the positive electrode of the coil of the third relay is connected with the positive electrode of the coil of the first relay;
the negative electrode of the coil of the third relay is connected with the negative electrode of the coil of the first relay;
the normally closed contacts of the second group of relay contacts of the third relay are connected with the common ends of the first group of relay contacts of the second relay;
the positive electrode of the coil of the fourth relay is connected with the positive electrode of the coil of the second relay;
the negative electrode of the coil of the fourth relay is connected with the negative electrode of the coil of the second relay;
and the normally closed contact of the second group of relay contacts of the fourth relay is connected with the common end of the first group of relay contacts of the first relay.
Preferably, the first external power supply and the second external power supply output single-phase alternating current.
Preferably, the output of the first external power supply and the output of the second external power supply are both direct currents.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the input ends of a first power supply connection module and a second power supply connection module are connected with a first external power supply and a second external power supply, the output ends of the first power supply connection module and the second power supply connection module are connected with the first input end and the second input end of a double-pole double-throw relay, the input end of an electric equipment connection module is connected with the output end of the double-pole double-throw relay, and the double-pole double-throw relay automatically controls the circuit conduction between the input end of the electric equipment connection module and the output end of the first power supply connection module or the output end of the second power supply connection module according to the electric energy output by the first power supply connection module and the second power supply connection module, so that the uninterrupted power supply to the electric equipment is realized. The dual-power distributor is formed by only using the double-pole double-throw relay, the first power supply connecting module, the second power supply connecting module and the electrical appliance connecting module, and has the advantages of simple structure, small occupied area, simple wiring and maintenance cost reduction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a block diagram of a dual power switching distributor according to the present invention;
fig. 2 is a circuit diagram according to an embodiment of the present invention.
Description of the symbols:
a first power supply connection module-1; a second power supply connection module-2; an electrical appliance connecting module-3; a double-pole double-throw relay-4; a first relay-41; a second relay-42; a third relay-43; a fourth relay-44.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a dual-power switching distributor which is small in occupied space, simple in wiring and used for uninterruptedly supplying power to electrical appliances.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic structural diagram of a dual power switching distributor according to the present invention, and as shown in fig. 1, the dual power switching distributor according to the present invention includes a first power connection module 1, a second power connection module 2, an electrical appliance connection module 3, and a double-pole double-throw relay 4.
The input end of the first power supply connection module 1 is connected with a first external power supply, and the output end of the first power supply connection module 1 is connected with the first input end of the double-pole double-throw relay 4.
The input end of the second power supply connection module 2 is connected with a second external power supply, and the output end of the second power supply connection module 2 is connected with the second input end of the double-pole double-throw relay 4.
The input end of the electrical appliance connecting module 3 is connected with the output end of the double-pole double-throw relay 4, and the output end of the electrical appliance connecting module 3 is connected with electrical equipment.
The double-pole double-throw relay 4 is used for automatically controlling the circuit conduction between the input end of the electrical appliance connecting module 3 and the output end of the first power supply connecting module 1 or the output end of the second power supply connecting module 2 according to the electric energy output by the first power supply connecting module 1 and the second power supply connecting module 2.
Specifically, when first power connection module 1 has the electric energy output, and first external power supply has the electric energy output promptly, and second power connection module 2 does not have the electric energy output, and second external power supply does not have the electric energy output promptly, with the input of electrical apparatus connection module 3 with circuit switch on between the output of first power connection module 1.
When first power connection module 1 does not have electric energy output, when first external power supply does not have electric energy output promptly, just second power connection module 2 has electric energy output, when second external power supply has electric energy output promptly, with input of electrical apparatus connection module 3 with circuit between the output of second power connection module 2 switches on.
In this embodiment, the first external power source and the second external power source output alternating current. In another embodiment, the first external power source and the second external power source output direct current.
Fig. 2 is a circuit connection diagram of the dual power switching distributor according to the present invention.
As shown in fig. 2, the double pole double throw relay 4 includes a first relay 41, a second relay 42, a third relay 43, and a fourth relay 44.
The first relay 41, the second relay 42, the third relay 43, and the fourth relay 44 each include two sets of relay contacts and one coil. The two groups of relay contacts are respectively a first group of relay contacts and a second group of relay contacts.
The first set of relay contacts and the second set of relay contacts each include a common terminal, a normally open contact and a normally closed contact.
The output end of the first power connection module 1 is connected to the first relay 41.
The positive pole of the output of the first power connection module 1 is connected to the common terminal of the first set of relay contacts of the first relay 41.
The negative electrode of the output end of the first power connection module 1 is connected to the common end of the second set of relay contacts of the first relay 41 and the negative electrode of the coil of the first relay 41, respectively.
The output end of the second power supply connection module 2 is connected with the second relay 42.
The positive pole of the output end of the second power supply connection module 2 is connected with the common end of the first group of relay contacts of the second relay 42;
the negative electrode of the output terminal of the second power connection module 2 is connected to the common terminal of the second set of relay contacts of the second relay 42 and the negative electrode of the coil of the second relay 42, respectively.
The input end of the electrical appliance connection module 3 is connected with the first relay 41 and the second relay 42 respectively.
The anode of the input end of the electrical appliance connection module 3 is respectively connected with the normally open contacts of the first group of relay contacts of the first relay 41 and the normally open contacts of the first group of relay contacts of the second relay 42;
the cathode of the input end of the electrical appliance connection module 3 is connected to the normally open contacts of the first group of relay contacts of the first relay 41 and the normally open contacts of the second group of relay contacts of the second relay 42.
The third relay 43 and the fourth relay 44 are mutually exclusive connected and then are respectively connected to the first relay 41 and the second relay 42; the exclusive connection is that the third relay 43 and the fourth relay 44 only have the coil of one relay to pass current at the same time.
The common terminal of the second set of relay contacts of the third relay 43 is connected to the positive terminal of the coil of the fourth relay 44.
The common terminal of the second set of relay contacts of the fourth relay 44 is connected to the positive terminal of the coil of the third relay 43.
The positive electrode of the coil of the third relay 43 is connected to the positive electrode of the coil of the first relay 41.
The negative electrode of the coil of the third relay 43 is connected to the negative electrode of the coil of the first relay 41.
The normally closed contacts of the second set of relay contacts of the third relay 43 are connected to the common end of the first set of relay contacts of the second relay 42;
the positive electrode of the coil of the fourth relay 44 is connected to the positive electrode of the coil of the second relay 42.
The negative electrode of the coil of the fourth relay 44 is connected to the negative electrode of the coil of the second relay 42.
The normally closed contacts of the second set of relay contacts of the fourth relay 44 are connected to the common terminal of the first set of relay contacts of the first relay 41.
The dual-power switching distributor further discloses the following technical effects:
according to the invention, the input ends of a first power supply connection module and a second power supply connection module are connected with a first external power supply and a second external power supply, the output ends of the first power supply connection module and the second power supply connection module are connected with the first input end and the second input end of a double-pole double-throw relay, the input end of an electric equipment connection module is connected with the output end of the double-pole double-throw relay, and the double-pole double-throw relay automatically controls the circuit conduction between the input end of the electric equipment connection module and the output end of the first power supply connection module or the output end of the second power supply connection module according to the electric energy output by the first power supply connection module and the second power supply connection module, so that the uninterrupted power supply to the electric equipment is realized. The dual-power distributor is formed by only using the double-pole double-throw relay, the first power supply connecting module, the second power supply connecting module and the electrical appliance connecting module, and has the advantages of simple structure, small occupied area, simple wiring and maintenance cost reduction.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (3)
1. A dual-power switching distributor is respectively connected with a first external power supply, a second external power supply and electric equipment and is characterized by comprising a first power supply connection module, a second power supply connection module, an electric equipment connection module and a double-pole double-throw relay;
the input end of the first power supply connection module is connected with the first external power supply, and the output end of the first power supply connection module is connected with the first input end of the double-pole double-throw relay;
the input end of the second power supply connection module is connected with the second external power supply, and the output end of the second power supply connection module is connected with the second input end of the double-pole double-throw relay;
the input end of the electrical appliance connecting module is connected with the output end of the double-pole double-throw relay, and the output end of the electrical appliance connecting module is connected with electrical equipment;
the double-pole double-throw relay is used for automatically controlling the circuit conduction between the input end of the electrical appliance connecting module and the output end of the first power supply connecting module or the output end of the second power supply connecting module according to the electric energy output by the first power supply connecting module and the second power supply connecting module;
the double-pole double-throw relay comprises a first relay, a second relay, a third relay and a fourth relay; the first relay, the second relay, the third relay and the fourth relay comprise two groups of relay contacts and a coil; the two groups of relay contacts are respectively a first group of relay contacts and a second group of relay contacts; the first group of relay contacts and the second group of relay contacts comprise a common end, a normally open contact and a normally closed contact;
the output end of the first power supply connection module is connected with the first relay;
the positive electrode of the output end of the first power supply connection module is connected with the common end of the first group of relay contacts of the first relay;
the negative electrode of the output end of the first power supply connection module is respectively connected with the common end of the second group of relay contacts of the first relay and the negative electrode of the coil of the first relay;
the output end of the second power supply connection module is connected with the second relay;
the positive electrode of the output end of the second power supply connection module is connected with the common end of the first group of relay contacts of the second relay;
the negative electrode of the output end of the second power supply connection module is respectively connected with the common end of the second group of relay contacts of the second relay and the negative electrode of the coil of the second relay;
the input end of the electrical appliance connecting module is respectively connected with the first relay and the second relay;
the anode of the input end of the electrical appliance connecting module is respectively connected with the normally open contacts of the first group of relay contacts of the first relay and the normally open contacts of the first group of relay contacts of the second relay;
the cathode of the input end of the electrical appliance connecting module is respectively connected with the normally open contacts of the first group of relay contacts of the first relay and the normally open contacts of the second group of relay contacts of the second relay;
the third relay and the fourth relay form mutual exclusion connection and are respectively connected to the first relay and the second relay;
the mutual exclusion connection is that only one coil of the relay passes through the third relay and the fourth relay at the same time;
the common end of the second group of relay contacts of the third relay is connected with the positive electrode of the coil of the fourth relay;
the common end of the second group of relay contacts of the fourth relay is connected with the positive electrode of the coil of the third relay;
the positive electrode of the coil of the third relay is connected with the positive electrode of the coil of the first relay;
the negative electrode of the coil of the third relay is connected with the negative electrode of the coil of the first relay;
the normally closed contacts of the second group of relay contacts of the third relay are connected with the common ends of the first group of relay contacts of the second relay;
the positive electrode of the coil of the fourth relay is connected with the positive electrode of the coil of the second relay;
the negative electrode of the coil of the fourth relay is connected with the negative electrode of the coil of the second relay;
and the normally closed contact of the second group of relay contacts of the fourth relay is connected with the common end of the first group of relay contacts of the first relay.
2. The dual power switching distributor as claimed in claim 1, wherein the first external power source and the second external power source output single-phase alternating current.
3. The dual power switching distributor of claim 1, wherein the output of the first external power source and the output of the second external power source are both direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962104.3A CN110571919B (en) | 2019-10-11 | 2019-10-11 | Dual-power switching distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910962104.3A CN110571919B (en) | 2019-10-11 | 2019-10-11 | Dual-power switching distributor |
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| Publication Number | Publication Date |
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| CN110571919A CN110571919A (en) | 2019-12-13 |
| CN110571919B true CN110571919B (en) | 2021-08-27 |
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| CN201910962104.3A Active CN110571919B (en) | 2019-10-11 | 2019-10-11 | Dual-power switching distributor |
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| CN116846241A (en) * | 2022-03-25 | 2023-10-03 | 上海铁路通信有限公司 | Full-automatic pulse generation and display circuit for inter-station security information transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103715746B (en) * | 2012-09-29 | 2016-08-24 | 艾默生网络能源有限公司 | A kind of UPS and DC/DC circuit |
| US9419417B1 (en) * | 2013-11-13 | 2016-08-16 | Thomas M. Taxter | Automatic switching interface box for generator |
| CN203967824U (en) * | 2014-06-20 | 2014-11-26 | 航天科工深圳（集团）有限公司 | The automatic switch-over circuit of distribution power automation terminal and duplicate supply |
| CN204271746U (en) * | 2014-12-18 | 2015-04-15 | 平顶山中选自控系统有限公司 | Backup power self-injection device |
| CN204652042U (en) * | 2015-06-09 | 2015-09-16 | 国网山东省电力公司济宁供电公司 | A kind of dual power supply automatic switching device |
| CN105262205A (en) * | 2015-10-30 | 2016-01-20 | 国家电网公司 | Dual-power switching control circuit of collection terminal |
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