CN209823504U - Automatic switching system for control power supply of low-voltage contact cabinet - Google Patents
Automatic switching system for control power supply of low-voltage contact cabinet Download PDFInfo
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- CN209823504U CN209823504U CN201920858147.2U CN201920858147U CN209823504U CN 209823504 U CN209823504 U CN 209823504U CN 201920858147 U CN201920858147 U CN 201920858147U CN 209823504 U CN209823504 U CN 209823504U
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- power supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model discloses a low-voltage communication cabinet control power supply automatic switching system, which comprises a commercial power and a standby power supply, wherein the commercial power is connected with a static switch through a current stabilizer, the static switch is connected with a load through a circuit switch, the standby power supply is connected with the circuit switch in parallel, the output end of the circuit switch is connected with the load, the utility model has the advantages of scientific and reasonable structure, safe and convenient use, power supply for the static switch and a storage battery through the current stabilizer, continuous power supply through the storage battery, electric quantity maintenance, current transmission to the circuit switch through the static switch, indirect power supply for the load through the circuit switch, circuit maintenance through disconnecting the circuit switch when the current stabilizer is damaged or the circuit is in fault, power supply for the load through the standby power supply when the commercial power is disconnected, and power supply for the load through the storage battery when the commercial power and the standby power supply are both electroless, is stable and safe.
Description
Technical Field
The utility model relates to a power automatic switch-over technical field specifically is a low pressure contact cabinet control power automatic switch-over system.
Background
The dual power transfer switch appliance is an appliance for transferring one or more load circuits from one power source to another power source, and is composed of one or more transfer switch appliances and other necessary appliances, and is used for monitoring the power circuit and automatically transferring one or more load circuits from one power source to another power source. The switch is called as a dual-power automatic transfer switch or a dual-power switch in the electrical industry.
However, the line conversion of the automatic control power switching system of the low-voltage communication cabinet in the current market is unstable, and the automatic control power switching system does not supply power to a load when the power supply is disconnected, and the line cannot be stably converted in the conversion process, so that misoperation is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low pressure contact cabinet control power supply automatic switching system can effectively solve and propose the circuit conversion unstability in the above-mentioned background art, does not in addition in the power disconnection, for the load power supply, and the circuit can not stably convert at the in-process of conversion, the problem of maloperation appears easily.
In order to achieve the above object, the utility model provides a following technical scheme: a low-voltage connection cabinet control power supply automatic switching system comprises a mains supply and a standby power supply, wherein the mains supply is connected with a static switch through a current stabilizer, the static switch is connected with a load through a circuit breaker, the standby power supply is connected with the circuit breaker in parallel, and the output end of the circuit breaker is connected with the load;
the current stabilizer is connected with the storage battery in parallel, and the current stabilizer is connected with the static switch in parallel.
According to the technical scheme, fuses are connected between the current stabilizer and the static switch and between the standby power supply and the circuit switch.
According to the technical scheme, the commercial power and the standby power are both three-phase power supplies and are connected with the ground wire.
According to the technical scheme, the input end of the storage battery is connected with a direct current converter, and the output end of the storage battery is connected with an alternating current converter.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization, be static switch and battery power supply through the current stabilizer, continuously get electric through the battery, keep the electric quantity, and through static switch with the current to the route switch, thereby be the load power supply indirectly through the route switch, when current stabilizer damages or circuit breaks down, through breaking the route switch, thereby for the circuit maintenance, in the commercial power disconnection, be the load power supply through stand-by power supply, and when commercial power and stand-by power supply all do not have electricity, be the load power supply through the battery, it is safe to stabilize.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a schematic diagram of an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1: as shown in fig. 1, the utility model provides a technical scheme, a low-voltage communication cabinet control power supply automatic switching system, including commercial power and stand-by power supply, the commercial power passes through the current stabilizer and is connected with static switch, and static switch passes through the route switch and links to each other with the load, and stand-by power supply and route switch connect in parallel, and route switch output links to each other with the load;
the current stabilizer is connected with the storage battery in parallel, and the current stabilizer is connected with the static switch in parallel.
According to the technical scheme, fuses are connected between the current stabilizer and the static switch and between the standby power supply and the circuit switch.
According to the technical scheme, the commercial power and the standby power are both three-phase power supplies and are connected with the ground wire.
According to the technical scheme, the input end of the storage battery is connected with the direct current converter, and the output end of the storage battery is connected with the alternating current converter.
Be static switch and battery power supply through the current regulator, be connected with direct current converter at the battery input end, be connected with alternating current converter at the battery output, the alternating current direct current's of can being convenient for conversion, continuously get electric through the battery, the electric quantity is kept, and through static switch with current to the circuit switch, thereby be the load power supply indirectly through the circuit switch, when the current regulator damages or the circuit breaks down, through breaking the circuit switch, thereby overhaul for the circuit, when the commercial power disconnection, be the load power supply through stand-by power supply, and when commercial power and stand-by power supply all do not have electricity, be the load power supply through the battery, stable safety.
Example 2: as shown in fig. 2, when the external battery is not input, the voltage at the base of the transistor V14 is 0, the transistor is not turned on, the battery voltage VBAT is divided by R66 and R68, and then a voltage drop greater than 0.7V is generated at the base of the transistor V13, the transistor V13 is turned on, the G-pole voltage of the MOS transistor V12 is 0V, the MOS transistor is turned on, VBAT is supplied with power by the DS pole of the MOS transistor V12, and Vout is output, and Vout is hardly generated when the MOS transistor is turned on, so Vout is actually measured to be equal to VBAT;
when an external power supply is input and the external power supply input is larger than about 1V, a voltage drop of 0.7V is generated on the base electrode of the triode V14, the triode is switched on, the voltage drop of the V13 base electrode is 0, the triode V13 is cut off, the G electrode on the MOS tube V12 is high level, Vgs is larger than 0, the DS of the MOS tube V12 is cut off, the VBAT output is switched off, the external power supply supplies VOUT through the diode D4 and is used for supplying power to equipment, and at the moment, the battery does not supply power;
the circuit realizes the seamless automatic switching of the double power supplies by utilizing the switching characteristics of the triode and the MOS, because the on-resistance of the MOS tube is very small, the voltage drop is almost avoided when the MOS tube is conducted, the voltage of the battery is completely consistent with the power supply voltage output to the equipment, the defect that the voltage drop is generated on one circuit is overcome, and the power supply voltage input from the outside can be smaller than the voltage of the battery.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a low pressure contact cabinet control power automatic switching control system which characterized in that: the emergency power supply comprises a mains supply and a standby power supply, wherein the mains supply is connected with a static switch through a current stabilizer, the static switch is connected with a load through a circuit breaker, the standby power supply is connected with the circuit breaker in parallel, and the output end of the circuit breaker is connected with the load;
the current stabilizer is connected with the storage battery in parallel, and the current stabilizer is connected with the static switch in parallel.
2. The automatic power switching system for the low-voltage communication cabinet is characterized in that fuses are connected between the current stabilizer and the static switch and between the standby power supply and the circuit breaker.
3. The automatic switching system of the control power supply of the low-voltage communication cabinet as claimed in claim 1, wherein the commercial power supply and the standby power supply are three-phase power supplies and are connected with a ground wire.
4. The automatic power switching system for the low-voltage communication cabinet is characterized in that a direct-current converter is connected to an input end of the storage battery, and an alternating-current converter is connected to an output end of the storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858147.2U CN209823504U (en) | 2019-06-10 | 2019-06-10 | Automatic switching system for control power supply of low-voltage contact cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858147.2U CN209823504U (en) | 2019-06-10 | 2019-06-10 | Automatic switching system for control power supply of low-voltage contact cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209823504U true CN209823504U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920858147.2U Active CN209823504U (en) | 2019-06-10 | 2019-06-10 | Automatic switching system for control power supply of low-voltage contact cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN209823504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900793A (en) * | 2020-08-21 | 2020-11-06 | 上海联影医疗科技有限公司 | Power supply system, medical system and control method |
-
2019
- 2019-06-10 CN CN201920858147.2U patent/CN209823504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900793A (en) * | 2020-08-21 | 2020-11-06 | 上海联影医疗科技有限公司 | Power supply system, medical system and control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214000 No.23 Changjiang South Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Guangying Group Co.,Ltd. electrical manufacturing branch Address before: 214000 No.23 Changjiang South Road, Xinwu District, Wuxi City, Jiangsu Province Patentee before: Electrical Appliance Manufacturing Branch of Wuxi Xineng Electric Power Industry Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |