CN211089227U - Acquisition terminal standby power supply box - Google Patents
Acquisition terminal standby power supply box Download PDFInfo
- Publication number
- CN211089227U CN211089227U CN202020081340.2U CN202020081340U CN211089227U CN 211089227 U CN211089227 U CN 211089227U CN 202020081340 U CN202020081340 U CN 202020081340U CN 211089227 U CN211089227 U CN 211089227U
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- China
- Prior art keywords
- power supply
- resistor
- power
- voltage transformer
- acquisition terminal
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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 collection terminal stand-by power supply box installs in collection terminal department, and collection terminal connects three-phase electric wire netting, its characterized in that through power input device: the power supply box comprises a back plate, a shell is fixedly arranged on the outer side of the back plate, a door frame is rotatably arranged on the outer side of the shell, and an element box is arranged in the door frame; two rotating cylinders are fixedly arranged on the inner side of the door frame, two rotating shafts are fixedly arranged on the element box, and the two rotating shafts are respectively inserted into the two rotating cylinders in a matching manner; the two rotating cylinders are provided with threaded through holes, the two rotating shafts are also provided with limiting holes, and the threaded through holes correspond to the limiting holes in position; the utility model provides a power pack can screw out inside installation component when overhauing, has avoided because of the electrical elements is more leads to workman's operation inconvenient in the power pack to and the not good problem of daylighting degree.
Description
Technical Field
The utility model relates to a terminal power supply unit field, concretely relates to acquisition terminal stand-by power supply 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. And the existing power box is inconvenient to overhaul due to limited operation space during overhaul.
Disclosure of Invention
An object of the utility model is to provide a collection terminal stand-by power supply box can fast switch to the stand-by battery power supply when the electric wire netting supplies power, prevents that collection terminal can't upload the signal when the electric wire netting has a power failure to can overhaul very easily when overhauing.
A standby power supply box of an acquisition terminal is arranged at the acquisition terminal, the acquisition terminal is connected with a three-phase power grid through a power supply input device, the power supply box comprises a back plate, a shell is fixedly arranged on the outer side of the back plate, a door frame is rotatably arranged on the outer side of the shell, and an element box is arranged in the door frame; the upper end and the lower end of the inner side of the door frame are respectively and fixedly provided with a rotating cylinder, the upper end and the lower end of the element box are respectively and fixedly provided with a rotating shaft, and the two rotating shafts are respectively inserted into the two rotating cylinders in a matching manner; the side surface of the rotating cylinder is provided with a threaded through hole, the rotating shaft is provided with a limiting hole, and the threaded through hole corresponds to the limiting hole; the standby power patch box is arranged in the element box and 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 the 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 power to; 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.
Preferably, the power supply box comprises a back plate, a shell is fixedly mounted on the outer side of the back plate, a door frame is rotatably mounted on the outer side of the shell, and an element box is rotatably mounted on the door frame.
Preferably, two rotating cylinders are fixedly arranged on the inner side of the door frame, two rotating shafts are fixedly arranged on the element box, and the two rotating shafts are respectively inserted into the two rotating cylinders in a matched manner.
The power supply box of the utility model can screw out the internal installation element when in maintenance, thereby avoiding the problems of inconvenient operation of workers and poor lighting degree caused by more electric elements in the power supply box; the power supply detection device is used for detecting whether a power failure fault occurs in the power grid in real time, and the power supply switching device is used for switching to a standby power supply to supply power, so that the electric quantity of the acquisition terminal is acquired 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
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, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic view of the overall structure of the power supply box of the present invention;
fig. 2 is a schematic view of an operating state of the power supply box of the present invention;
FIG. 3 is a schematic view of another working state of the power supply box of the present invention;
FIG. 4 is a schematic view of the installation of the component box according to the present invention;
fig. 5 is a schematic block diagram of the electrical patch box of the present invention;
fig. 6 is a schematic circuit diagram of the power detection device of the present invention;
fig. 7 is a schematic block diagram of the backup power supply of the present invention.
In the figure: 1. a door frame; 2. a component box; 3. a handle; 4. a housing; 5. a back plate; 6. mounting holes; 7. a rotating cylinder; 8. a threaded through hole; 9. a screw; 10. a rotating shaft; 11. a limiting hole; 12. and (4) heat dissipation holes.
Detailed Description
The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example 1
As shown in fig. 1-7, a standby power supply box for an acquisition terminal is installed at the acquisition terminal, the acquisition terminal is connected to a three-phase power grid through a power input device, the power supply box comprises a back plate 5, a housing 4 is fixedly installed on the outer side of the back plate 5, the housing 4 and the back plate 5 can be of an integrated structure, or can be welded and fixed with each other, a door frame 1 is rotatably installed on the outer side of the housing 4, a component box 2 is rotatably installed on the door frame 1, the specific installation mode is that a rotary cylinder 7 is fixedly installed at the upper end and the lower end of the inner side of the door frame 1, a rotary shaft 10 is fixedly installed at the upper end and the lower end of the component box 2, the two rotary shafts 10 are respectively matched and inserted in the two rotary cylinders 7, so that the component box 2 can freely rotate on the door frame 1, threaded through holes 8 are formed in the side surfaces of the two rotary, spacing hole 11 and screw 9 cooperation are used, and specific use mode is: the screw 9 is screwed to abut against the rotating shaft 10 or leave the rotating shaft 10, so that the component box 2 can be loosened or clamped, in addition, the heat dissipation hole 12 is formed in the top of the shell 4, if other requirements are met, a heat dissipation fin can be additionally arranged at the position of the heat dissipation hole 12, the handle 3 is arranged on the outer side of the component box, the door frame can be conveniently pulled open, and the mounting hole 6 is formed in the back plate 5, so that the power supply box can be conveniently mounted.
When needs maintain the power pack and examine time measuring, only need pull open door frame 1, outwards twist and move screw 9, make component box 2 not hard up, alright with rotate suitable position with component box, the easy access personnel operation.
The spare power patch box is arranged in the element box and comprises a power supply detection device, a power supply switching device, a control device and a spare power supply, the three-phase power grid is connected with the spare power supply through the power supply detection device, the control device and the power supply switching device in sequence, and the spare 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 component, 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 component 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 component is stored into the storage battery and the super capacitor through the first direct current converter and the second direct current converter respectively, when the power grid is powered off, the storage battery and the super capacitor supply power to the collection terminal, the controller is also connected with the alternating current inverter, redundant electric energy generated by the photovoltaic component is merged into the power grid through the alternating current inverter to supply power for other electric equipment.
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 (3)
1. The utility model provides a collection terminal stand-by power supply box installs in collection terminal department, and collection terminal connects three-phase electric wire netting, its characterized in that through power input device: the power supply box comprises a back plate, a shell is fixedly arranged on the outer side of the back plate, a door frame is rotatably arranged on the outer side of the shell, and an element box is arranged in the door frame; the upper end and the lower end of the inner side of the door frame are respectively and fixedly provided with a rotating cylinder, the upper end and the lower end of the element box are respectively and fixedly provided with a rotating shaft, and the two rotating shafts are respectively inserted into the two rotating cylinders in a matching manner; the side surface of the rotating cylinder is provided with a threaded through hole, the rotating shaft is provided with a limiting hole, and the threaded through hole corresponds to the limiting hole; the standby power patch box is arranged in the element box and 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 the acquisition 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 acquisition terminal, and the storage battery supplies power to the 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.
2. The acquisition terminal backup power pack of claim 1, wherein: the outer side of the element box is provided with a handle.
3. The acquisition terminal backup power pack of 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 a 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 a 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 a seventh resistor and a first diode in parallel in sequence, an output end of the second voltage transformer is connected with an eighth resistor and a second diode in parallel in sequence, and output ends of the first voltage transformer and the second voltage transformer are connected with a control device respectively; 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081340.2U CN211089227U (en) | 2020-01-15 | 2020-01-15 | Acquisition terminal standby power supply box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081340.2U CN211089227U (en) | 2020-01-15 | 2020-01-15 | Acquisition terminal standby power supply box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211089227U true CN211089227U (en) | 2020-07-24 |
Family
ID=71629714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020081340.2U Expired - Fee Related CN211089227U (en) | 2020-01-15 | 2020-01-15 | Acquisition terminal standby power supply box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211089227U (en) |
-
2020
- 2020-01-15 CN CN202020081340.2U patent/CN211089227U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200724 Termination date: 20210115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |