CN209979769U - Collection terminal is equipped with electric patch box - Google Patents
Collection terminal is equipped with electric patch box Download PDFInfo
- Publication number
- CN209979769U CN209979769U CN201920786688.9U CN201920786688U CN209979769U CN 209979769 U CN209979769 U CN 209979769U CN 201920786688 U CN201920786688 U CN 201920786688U CN 209979769 U CN209979769 U CN 209979769U
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- power supply
- power
- resistor
- acquisition terminal
- voltage transformer
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- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses an acquisition terminal is equipped with electric patch box, install in acquisition terminal department, acquisition terminal connects the three-phase electric wire netting through power input device, including power detection device, power switching device, controlling means and stand-by power supply, power detection device's input is connected the three-phase electric wire netting, power detection device's output links to each other with power switching device through controlling means, power switching device connects stand-by power supply, stand-by power supply links to each other with acquisition terminal, stand-by power supply includes photovoltaic module, controller, first direct current ware and the battery that links to each other in proper order, photovoltaic module sets up in acquisition terminal's the outside, the battery supplies power for acquisition terminal; when the power supply detection device detects that the power grid is powered off, the standby power supply is switched to supply power to the acquisition terminal through the control device and the power supply switching device. The utility model discloses can realize the electric quantity collection to acquisition terminal under the electric wire netting power failure state to the realization is to the real-time supervision of the power consumption of user side.
Description
Technical Field
The utility model relates to a terminal power supply unit field, concretely relates to collection terminal is equipped with electric patch box.
Background
In the existing power supply system, because the power grid operation load is larger and larger, more and more line faults are caused, phenomena such as phase loss, undervoltage, overcurrent and the like occur frequently, once the power grid fails, the acquisition terminal such as an electric energy meter and the like cannot upload electric quantity signals due to power loss, so that the electric energy acquisition system cannot monitor a user side.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an acquisition terminal is equipped with electric patch box can fast switch to the stand-by battery power supply when the electric wire netting power supply, prevents that acquisition terminal can't upload the signal when the electric wire netting has a power failure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a collection terminal standby power patch box is installed at a collection terminal, the collection terminal is connected with a three-phase power grid through a power input device and comprises a power detection device, a power switching device, a control device and a standby power supply, the input end of the power detection device is connected with the three-phase power grid, the output end of the power detection device is connected with the power switching device through the control device, the power switching device is connected with the standby power supply, the standby power supply is connected with the collection terminal, the standby power supply comprises a photovoltaic assembly, a controller, a first direct current converter and a storage battery which are sequentially connected, the photovoltaic assembly is arranged on the outer side of the collection terminal, and the storage battery supplies power to the collection; when the power supply detection device detects that the power grid is powered off, the standby power supply is switched to supply power to the acquisition terminal through the control device and the power supply switching device.
Preferably, the power detection device comprises a current-limiting resistor, a first voltage transformer, a second voltage transformer, a first diode and a second diode, the current-limiting resistor comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor, an A-phase input end of a power grid is connected with the first voltage transformer through the first resistor, the second resistor and the third resistor in sequence, a B-phase input end of the power grid is connected with the first voltage transformer and the second voltage transformer respectively, a C-phase input end of the power grid is connected with the second voltage transformer through the fourth resistor, the fifth resistor and the sixth resistor in sequence, an output end of the first voltage transformer is connected with the seventh resistor and the first diode in parallel in sequence, an output end of the second voltage transformer is connected with the eighth resistor and the second diode in parallel in sequence, and output ends of the first voltage transformer and the second voltage transformer are connected with the control device respectively.
Preferably, the power switching device adopts a switching relay, a coil of the switching relay is connected with the control device, and a contact of the switching relay is arranged on a power line of the standby power supply.
Preferably, the standby power supply further comprises a second direct current converter and a super capacitor, the super capacitor is connected with the controller through the second direct current converter, and the super capacitor supplies power to the acquisition terminal.
Preferably, the controller is further connected with an alternating current inverter, and redundant electric energy generated by the photovoltaic module is merged into a power grid through the alternating current inverter.
Preferably, the emergency power supply further comprises a time control device, the time control device adopts a time relay, a coil of the time relay is connected with the control device, and a contact of the time relay is arranged on a power line of the emergency power supply.
The utility model detects whether the power failure fault occurs in the power grid in real time through the power detection device, and switches to the standby power supply for power supply through the power switching device, thereby realizing the electric quantity collection of the collection terminal in the power failure state of the power grid; the power supply detection device has the advantages of fast and accurate detection, reliable action of the power grid switching device and fast response speed, can be quickly switched to the standby battery for power supply when the power grid supplies power, prevents the signal of the mobile phone acquisition terminal from being unavailable when the power grid has power failure, and can realize the real-time monitoring of the power consumption of the user side.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
fig. 2 is a schematic circuit diagram of the power detection device of the present invention;
fig. 3 is a schematic block diagram of the standby power supply of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the utility model discloses an acquisition terminal standby power patch box, which is installed at an acquisition terminal, wherein the acquisition terminal is connected with a three-phase power grid through a power input device, the acquisition terminal comprises a power detection device, a power switching device, a control device and a standby power supply, the three-phase power grid is sequentially connected with the standby power supply through the power detection device, the control device and the power switching device, and the standby power supply is connected with the acquisition terminal and supplies power to the acquisition terminal; the power supply detection device is used for detecting whether the power grid is powered off or not, the power supply switching device is used for switching between the power grid and the standby power supply, and the control device is used for controlling the switching device to work.
The power input device is used for converting three-phase alternating current into stable direct current to supply power to the acquisition terminal, and in the embodiment, a transformer, a rectifier bridge, a filter and a voltage stabilizer which are connected in sequence are adopted for the prior art.
The power supply detection device comprises a current-limiting resistor, a first voltage transformer PT1, a second voltage transformer PT2, a first diode V1 and a second diode V2, wherein the current-limiting resistor comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6, an A-phase input end of a three-phase power supply is connected with the first voltage transformer PT1 through a first resistor R1, a second resistor R2 and a third resistor R3 in sequence, a B-phase input end of the three-phase power supply is connected with the first voltage transformer PT1 and the second voltage transformer PT2 respectively, a C-phase input end of the three-phase power supply is connected with the second voltage transformer PT 6 through a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6 in sequence, an output end of the first voltage transformer PT 6 is connected with a seventh resistor R6 and the first diode V6 in parallel, the first diode V6 is used for converting a first rectified voltage of the first rectified voltage transformer OUT 6 into a first rectified current 6, the output end of the second voltage transformer PT2 is connected in parallel with an eighth resistor R8 and a second diode V2 in sequence, the second diode V2 is used for rectifying, the eighth resistor R8 is used for converting the second current output by the second voltage transformer PT2 into a second output voltage OUT2, and the first output voltage OUT1 and the second output voltage OUT2 are respectively connected with a control device. The first voltage transformer PT1 and the second voltage transformer PT2 are both TV31B02 in model.
When the phase a is open, the first output voltage OUT1 becomes 0V, when the phase C is open, the second output voltage OUT2 becomes 0V, and when the phase B is open, both the first output voltage OUT1 and the second output voltage OUT2 become 0V. As long as one of the voltages output by the power supply detection device becomes 0V, the control device can judge that the power grid has a fault. Wherein, the control device adopts 89C51 series single-chip microcomputer.
The power supply switching device adopts a switching relay, a coil of the switching relay is connected with the control device, and a contact of the switching relay is arranged on a power supply line of the standby power supply. When the control device detects that the power grid is cut off, the standby power supply starts to work by switching the relay; when the power grid resumes supplying power, the backup power supply is disconnected.
The standby power supply comprises a photovoltaic module, a controller, a first direct current converter, a storage battery, a second direct current converter, a super capacitor and an alternating current inverter, wherein the output end of the photovoltaic module is connected with the controller, the controller is connected with the storage battery through the first direct current converter, the controller is also connected with the super capacitor through the second direct current converter, the storage battery and the super capacitor are connected with a collection terminal, electric energy generated by the photovoltaic module is stored into the storage battery and the super capacitor through the first direct current converter and the second direct current converter respectively, and when the power grid is cut off, the storage battery and the super capacitor supply power to the collection terminal; the controller is further connected with an alternating current inverter, and redundant electric energy generated by the photovoltaic module is merged into a power grid through the alternating current inverter to supply power for other electric equipment. In this embodiment, the controller is a PLC, and the controller is configured to control operations of the first dc converter, the second dc converter, and the ac inverter, and a control process of the controller may refer to an existing photovoltaic power generation system, which is not described in detail for the prior art. The power that photovoltaic module produced stores to battery and super capacitor in through first direct current converter and second direct current converter respectively, compares with single energy storage mode, can reduce investment cost, and can play the effect of stabilizing photovoltaic power output and adjusting supply and balance of electric.
The control device is also connected with a time control device, the time control device adopts a time relay, a coil of the time relay is connected with the control device, and a contact of the time relay is arranged on a power line of the standby power supply.
When the utility model works, the power detection device detects whether the power failure fault occurs in the power grid in real time, and as long as one of the voltages output by the power detection device is changed into 0V, the control device can judge that the power grid has the fault, and at the moment, the control device enables the standby power supply to start working through switching the relay; when the power grid resumes supplying power, the backup power supply is disconnected.
The utility model discloses a power detection device comes real-time detection electric wire netting and whether produces the power failure trouble to switch over to stand-by power supply through power switching device, realize the electric quantity collection to collection terminal under the electric wire netting power failure state, thereby realize the real-time supervision to the power consumption of user side.
Claims (6)
1. The utility model provides an acquisition terminal is equipped with electric patch box installs in acquisition terminal department, and acquisition terminal connects three-phase electric wire netting, its characterized in that through power input device: the power supply detection device comprises a power supply detection device, a power supply switching device, a control device and a standby power supply, wherein the input end of the power supply detection device is connected with a three-phase power grid, the output end of the power supply detection device is connected with the power supply switching device through the control device, the power supply switching device is connected with the standby power supply, the standby power supply is connected with an acquisition terminal, the standby power supply comprises a photovoltaic module, a controller, a first direct current converter and a storage battery which are sequentially connected, the photovoltaic module is arranged on the outer side of the acquisition terminal, and the storage battery supplies; when the power supply detection device detects that the power grid is powered off, the standby power supply is switched to supply power to the acquisition terminal through the control device and the power supply switching device.
2. The patch box for collecting the standby power of the terminal as claimed in claim 1, wherein: the power supply detection device comprises a current-limiting resistor, a first voltage transformer, a second voltage transformer, a first diode and a second diode, the current-limiting resistor comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor, an A-phase input end of a power grid is connected with the first voltage transformer through the first resistor, the second resistor and the third resistor in sequence, a B-phase input end of the power grid is connected with the first voltage transformer and the second voltage transformer respectively, a C-phase input end of the power grid is connected with the second voltage transformer through the fourth resistor, the fifth resistor and the sixth resistor in sequence, an output end of the first voltage transformer is connected with the seventh resistor and the first diode in parallel in sequence, an output end of the second voltage transformer is connected with the eighth resistor and the second diode in parallel in sequence, and output ends of the first voltage transformer and the second voltage transformer are connected with the control device respectively.
3. The patch box for power backup of the acquisition terminal as claimed in claim 2, wherein: the power supply switching device adopts a switching relay, a coil of the switching relay is connected with the control device, and a contact of the switching relay is arranged on a power supply line of the standby power supply.
4. The patch box for power backup of an acquisition terminal as claimed in claim 2 or 3, wherein: the standby power supply further comprises a second direct current converter and a super capacitor, the super capacitor is connected with the controller through the second direct current converter, and the super capacitor supplies power to the acquisition terminal.
5. The patch box for power backup of an acquisition terminal as claimed in claim 4, wherein: the controller is further connected with an alternating current inverter, and redundant electric energy generated by the photovoltaic module is merged into a power grid through the alternating current inverter.
6. The patch box for power backup of an acquisition terminal as claimed in claim 2 or 3, wherein: the time control device adopts a time relay, a coil of the time relay is connected with the control device, and a contact of the time relay is arranged on a power line of the standby power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786688.9U CN209979769U (en) | 2019-05-29 | 2019-05-29 | Collection terminal is equipped with electric patch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920786688.9U CN209979769U (en) | 2019-05-29 | 2019-05-29 | Collection terminal is equipped with electric patch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209979769U true CN209979769U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920786688.9U Expired - Fee Related CN209979769U (en) | 2019-05-29 | 2019-05-29 | Collection terminal is equipped with electric patch box |
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| Country | Link |
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| CN (1) | CN209979769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531879A (en) * | 2020-12-05 | 2021-03-19 | 青岛鼎信通讯股份有限公司 | Acquisition terminal standby power supply device capable of being automatically switched |
-
2019
- 2019-05-29 CN CN201920786688.9U patent/CN209979769U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531879A (en) * | 2020-12-05 | 2021-03-19 | 青岛鼎信通讯股份有限公司 | Acquisition terminal standby power supply device capable of being automatically switched |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200114 Address after: 454150 No. 299 South Tower Road, Henan, Jiaozuo Patentee after: Qi Wenping Address before: 450064 Building 2, yard 11, industrial road, Mazhai Town, Erqi District, Zhengzhou City, Henan Province Patentee before: Henan Zhikun Electric Co., Ltd |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20200529 |