CN218783618U - Low-power-consumption quick change-over switch - Google Patents
Low-power-consumption quick change-over switch Download PDFInfo
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- CN218783618U CN218783618U CN202222749729.1U CN202222749729U CN218783618U CN 218783618 U CN218783618 U CN 218783618U CN 202222749729 U CN202222749729 U CN 202222749729U CN 218783618 U CN218783618 U CN 218783618U
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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 relates to a low-power consumption fast transfer switch, including controller, power supply circuit and stand-by power supply circuit commonly used, power supply circuit commonly used locates between power supply commonly used and the power consumption load, and stand-by power supply circuit locates between stand-by power supply and the power consumption load, and power supply circuit commonly used and stand-by power supply circuit parallelly connected the setting, are equipped with first switch module among the power supply circuit commonly used, are equipped with the second switch module on the stand-by power supply circuit, and first switch module is connected with the controller respectively with the second switch module. The utility model has the advantages of being scientific and reasonable in structural design, the stable performance is reliable, when guaranteeing consumer safety, whole low power dissipation, its consumption under the normal through-flow condition is the same basically with ordinary mechanical type automatic transfer switch, still has higher precision and faster response time in addition, and its automatic transfer switch total action time is less than 10ms.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to a low-power consumption fast transfer switch.
Background
In a low-voltage distribution system, an automatic transfer switching device is mainly used for reducing the power-off time of a load, and the automatic transfer switching devices commonly found in the market at present are mainly classified into the following types: the mechanical automatic transfer switching device is the most common mechanical automatic transfer switching device in the market, and is mainly characterized in that a mechanical contact structure is used as a main component for bearing current, energy is generally released by a spring energy storage mechanism to drive the mechanical contact structure to perform a transfer action at the transfer moment, the total action time of the product is generally 200-500ms, and the fastest action time is approximately 50-100ms. The other type is a static transfer switching device which is mainly characterized in that a power electronic device is used as a main part for bearing current, the power electronic device is driven by a weak current control signal of a controller to perform transfer action at the transfer moment, the total action time of the product is generally within 20ms, and the fastest action time is approximately 3-10ms.
Although the switching speed of the static transfer switch electric appliance is high, the problem of overlarge power consumption in the bearing process exists, the power consumption of the common static transfer switch can reach 1% of the power consumption of a load to the maximum extent, the power consumption is far higher than that of a mechanical automatic transfer switch electric appliance, and the current green and environment-friendly concept is not met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a low-power consumption fast transfer switch.
The utility model discloses a realize through following technical scheme:
a low-power-consumption quick change-over switch comprises a controller, a common power supply circuit and a standby power supply circuit, wherein the common power supply circuit is arranged between a common power supply and an electric load, and the standby power supply circuit is arranged between the standby power supply and the electric load. The standby power supply circuit is preferably arranged on one path, the common power supply circuit and the standby power supply circuit are arranged in parallel, a first switch assembly is arranged in the common power supply circuit, a second switch assembly is arranged on the standby power supply circuit, the first switch assembly and the second switch assembly are respectively connected with the controller, the controller is used for discovering the abnormity of the power grid power supply state, and the controller sends out a driving signal after the power supply abnormal state is determined to drive the first switch assembly and the second switch assembly to be opened and closed.
According to the above technical solution, preferably, the first switch assembly includes a first load-bearing switch QF1 and a first arc-extinguishing switch K1, which are arranged in parallel.
According to the above technical solution, preferably, the second switch assembly includes a second load-bearing switch QF2 and a second arc-extinguishing switch K2, which are arranged in parallel.
According to the above technical solution, preferably, the first load-bearing switch QF1 and the first arc-extinguishing switch K1 are respectively connected with a controller, and the second load-bearing switch QF2 and the second arc-extinguishing switch K2 are respectively connected with the controller.
The utility model has the advantages that:
the utility model has the advantages of being scientific and reasonable in structural design, the stable performance is reliable, when guaranteeing consumer safety, whole low power dissipation, its consumption under the normal through-flow condition is the same basically with ordinary mechanical type automatic transfer switch, still has higher precision and faster response time in addition, and its automatic transfer switch total action time is less than 10ms.
Drawings
Fig. 1 is a schematic diagram of the system connection structure of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the utility model.
As shown in the figure, the utility model discloses a controller, power supply circuit and stand-by power supply circuit commonly used, power supply circuit commonly used locates between power supply commonly used and the power consumption load, and stand-by power supply circuit locates between stand-by power supply and the power consumption load. The standby power supply circuit is preferably arranged on one path, the common power supply circuit and the standby power supply circuit are arranged in parallel, a first switch assembly is arranged in the common power supply circuit, a second switch assembly is arranged on the standby power supply circuit, the first switch assembly and the second switch assembly are respectively connected with the controller, the controller is used for discovering the abnormity of the power grid power supply state, and the controller sends out a driving signal after the power supply abnormal state is determined to drive the first switch assembly and the second switch assembly to be opened and closed. The patent CN103676641B, the low-cost and high-reliability control system and control method for an automatic transfer switch electric appliance disclosed by the applicant of the present invention also describe the similar working principle of the controller controlling the on and off of the switch component, and therefore are not described in the technical solution.
According to the above embodiment, preferably, the first switch assembly includes a first load-bearing switch QF1 and a first arc-extinguishing switch K1 which are arranged in parallel, and the second switch assembly includes a second load-bearing switch QF2 and a second arc-extinguishing switch K2 which are arranged in parallel. The first load bearing switch QF1 and the first arc extinguishing switch K1 are respectively connected with a controller, and the second load bearing switch QF2 and the second arc extinguishing switch K2 are respectively connected with the controller. The load switches QF1 and QF2 are used as main load loops of current under the steady state condition, and bear most of load current when the automatic transfer switching device is not switched; the function of the arc-extinguishing switches K1, K2 is to carry a certain rated or even overload current in a short time and to be able to break said rated or even overload current upon command of the controller.
The utility model discloses an automatic change-over switch preferred implementation principle as follows:
taking one common power supply and one standby power supply as examples, two paths are arranged on the common power supply side in parallel, wherein one path is a first bearing switch QF1, the other path is a first arc extinguishing switch K1, and two paths are arranged on the standby power supply side in parallel, wherein one path is a second bearing switch QF2, and the other path is a second arc extinguishing switch K2. When the common power supply is normal, the arc extinguishing switch K1 on the side of the common power supply is in an off state, and the first load bearing switch QF1 is in an on state. And the second arc extinguishing switch K2 and the second load bearing switch QF2 on the standby power supply side are both in an off state.
When the common power supply is abnormal, the controller sends a command of switching on the first arc extinguishing switch K1 on the side of the common power supply after judgment, and simultaneously sends a command of switching off the first load bearing switch QF1 on the side of the common power supply again after a very short time, and the load bearing switch QF1 is completely switched off after a certain inherent switching-off time, in the process, the original current in the first load bearing switch QF1 on the side of the common power supply is forcedly transferred to the first arc extinguishing switch K1 on the side of the common power supply. The controller sends out a command, so that the first arc-extinguishing switch K1 on the common power supply side is disconnected, and the electric connection between the electric load side and the common power supply side is completely separated after a certain time delay.
After waiting for a certain time, after the arcs at the two ends of the breakpoint of the first load bearing switch QF1 are completely extinguished, the controller simultaneously sends out a command to enable the second arc extinguishing switch K2 and the second load bearing switch QF2 at the standby power supply side to be sequentially connected. After a short time, the standby power supply provides power for the electric load through the second arc-extinguishing switch K2 and the second load-bearing switch QF2, and after the second load-bearing switch QF2 is completely switched on, the controller sends a command to switch off the second arc-extinguishing switch K2 on the standby power supply side. Similarly, when the standby side power supply is abnormal, the conversion process is similar.
The utility model has the advantages of being scientific and reasonable in structural design, the stable performance is reliable, when guaranteeing consumer safety, whole low power dissipation, its consumption under the normal through-flow condition is the same basically with ordinary mechanical type automatic transfer switch, still has higher precision and faster response time in addition, and its automatic transfer switch total action time is less than 10ms.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a low-power consumption fast transfer switch which characterized in that, includes controller, power supply circuit and stand-by power supply circuit commonly used, power supply circuit commonly used and stand-by power supply circuit parallel arrangement, be equipped with first switch module in the power supply circuit commonly used, be equipped with second switch module on the stand-by power supply circuit.
2. The low power consumption fast transfer switch of claim 1, wherein the first switch component and the second switch component are respectively connected to a controller.
3. The low power consumption fast transfer switch of claim 2, wherein the first switch assembly comprises a first load switch and a first arc suppressing switch arranged in parallel.
4. The low power consumption fast transfer switch of claim 3, wherein the second switch assembly comprises a second load switch and a second quenching switch arranged in parallel.
5. A low power consumption fast transfer switch according to any of claims 1 to 4, characterized in that said standby power circuit is provided with one path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222749729.1U CN218783618U (en) | 2022-10-19 | 2022-10-19 | Low-power-consumption quick change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222749729.1U CN218783618U (en) | 2022-10-19 | 2022-10-19 | Low-power-consumption quick change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218783618U true CN218783618U (en) | 2023-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222749729.1U Active CN218783618U (en) | 2022-10-19 | 2022-10-19 | Low-power-consumption quick change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218783618U (en) |
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2022
- 2022-10-19 CN CN202222749729.1U patent/CN218783618U/en active Active
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