CN220253822U - Automatic reclosing alternating current photovoltaic grid-connected cabinet - Google Patents
Automatic reclosing alternating current photovoltaic grid-connected cabinet Download PDFInfo
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- CN220253822U CN220253822U CN202321414939.3U CN202321414939U CN220253822U CN 220253822 U CN220253822 U CN 220253822U CN 202321414939 U CN202321414939 U CN 202321414939U CN 220253822 U CN220253822 U CN 220253822U
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- automatic reclosing
- control box
- grid
- movable rod
- adjustable transformer
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- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an automatic reclosing alternating current photovoltaic grid-connected cabinet, which comprises a cabinet body, a control box and an electric switching-on assembly, wherein an input wire extends in the cabinet body, a mounting plate is arranged in the cabinet body, a voltmeter connected with the input wire is arranged on the surface of the mounting plate, an adjustable transformer is arranged on one side of the voltmeter on the mounting plate, the control box and the electric switching-on assembly are both arranged on the surface of the mounting plate, the control box is connected with the voltmeter and the adjustable transformer through a first wire and a second wire respectively, the adjustable transformer is connected with the electric switching-on assembly through a third wire, and the electric switching-on assembly comprises a power mechanism and a switching-on mechanism, and the automatic reclosing photovoltaic grid-connected cabinet has the advantages that: the control box controls the electromagnet to work according to the detection voltage, so that quick opening and closing are realized, manual intervention is not needed, and the maintenance cost and the management cost of the photovoltaic power station are greatly reduced.
Description
Technical Field
The utility model relates to the technical field of photovoltaic grid-connected cabinets, in particular to an automatic reclosing alternating-current photovoltaic grid-connected cabinet.
Background
At present, the photovoltaic grid-connected power generation can encounter a series of problems such as overload, overvoltage, undervoltage, short circuit and the like, the traditional grid-connected cabinet utilizes a circuit breaker to provide overload and short circuit protection, utilizes an undervoltage coil of the circuit breaker to implement undervoltage tripping, and needs manual checking and resetting when the power grid voltage is recovered to a normal value, so that personnel maintenance cost and management cost are increased, and particularly some mountain areas and desert areas are increased. The management cost is greatly improved. In addition, the traditional breaker is added with an under-voltage tripping coil, so that the problem of overvoltage use of equipment caused by overvoltage of a power grid can not be solved, and overvoltage protection of an inverter in a circuit can only be relied on, so that the protection is single.
The existing electric operating mechanism is inconvenient for the AC photovoltaic grid-connected cabinet to grid, so that people are required to manually operate and control grid connection to ensure that the AC photovoltaic grid-connected cabinet is communicated, and the manual operation is time-consuming and labor-consuming, delays grid-connected time and further influences the use of the AC photovoltaic grid-connected cabinet.
Disclosure of Invention
The utility model aims to provide an automatic reclosing alternating-current photovoltaic grid-connected cabinet so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic reclosing alternating current photovoltaic grid-connected cabinet, includes the cabinet body and control box, electronic switch-on subassembly, the inside extension of the cabinet body has the input wire, the inside of the cabinet body is provided with the mounting panel, the surface of mounting panel is provided with the voltmeter of being connected with the input wire, the mounting panel is in one side of voltmeter is provided with adjustable transformer, control box, electronic switch-on subassembly all set up the surface of mounting panel, the control box with voltmeter, adjustable transformer are connected through first connecting wire, second connecting wire respectively, adjustable transformer with electronic switch-on subassembly is connected through the third connecting wire, electronic switch-on subassembly includes power unit, switch-on mechanism, power unit sets up one side of adjustable transformer, switch-on mechanism sets up power unit's below, switch-on mechanism's movable contact plate, static contact plate pass through the connecting wire respectively with the control box is connected.
Preferably, the power mechanism is composed of an electromagnet, and the electromagnet is fixedly connected with the upper end surface of the mounting plate through a fixing plate.
Preferably, the closing mechanism comprises a fixed sleeve and a movable block arranged on the inner side of the fixed sleeve, an insulating movable rod is arranged on the upper surface of the movable block, and a metal block at the upper end of the insulating movable rod is connected with the electromagnet in an adsorption mode.
Preferably, the movable contact plate is integrally sleeved on the outer side of the middle part of the insulating movable rod, and the static contact plate is arranged above the movable contact plate and fixedly connected with the mounting plate.
Preferably, a reset mechanism is arranged on the outer side of the insulating movable rod, the reset mechanism comprises a limiting plate fixedly connected with the surface of the mounting plate, a compression limiting spring is arranged on the outer side of the insulating movable rod, and two ends of the compression limiting spring are respectively abutted to the limiting plate and the movable block.
Preferably, the closing mechanism further comprises a protective cover, and the protective cover is integrally sleeved on the outer sides of the insulating movable rod and the fixed sleeve.
Compared with the prior art, the utility model has the beneficial effects that: the electric switching-on assembly is arranged in the cabinet body and is connected with the control box through the adjustable transformer, namely, in the use process, the voltage is monitored in real time through the voltmeter, the control box controls the electromagnet to work according to the detected voltage, so that quick switching-off and switching-on are realized, manual intervention is not needed, and the maintenance cost and the management cost of the photovoltaic power station are greatly reduced; meanwhile, after receiving the detection data of the voltage, the control box controls the adjustable transformer in real time according to the detection data, and regulates and controls the output voltage of the adjustable transformer in proportion, so that the magnetic force of the electromagnet is rapidly controlled, and overvoltage or undervoltage protection is realized.
Drawings
FIG. 1 is a schematic overall structure of the present utility model;
fig. 2 is a schematic structural diagram of an electric switch-on assembly according to the present utility model;
FIG. 3 is a schematic view of the structure of the fixing sleeve of the present utility model;
fig. 4 is a schematic structural view of the protective cover of the present utility model.
In the figure: 1. a cabinet body; 2. a control box; 3. an input wire; 4. a mounting plate; 5. a voltmeter; 6. an adjustable transformer; 7. a first connecting wire; 8. a second connecting wire; 9. a third connecting wire; 10. a movable contact plate; 11. a stationary touch plate; 12. an electromagnet; 13. a fixing plate; 14. a fixed sleeve; 15. a movable block; 16. an insulating movable rod; 17. a limiting plate; 18. a compression spring; 19. and a protective cover.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides an automatic reclosing alternating current photovoltaic grid-connected cabinet, includes the cabinet body 1 and control box 2, electronic switch-on subassembly, the inside extension of the cabinet body 1 has input wire 3, the inside of the cabinet body 1 is provided with mounting panel 4, the surface of mounting panel 4 is provided with voltmeter 5 that is connected with input wire 3, mounting panel 4 is in one side of voltmeter 5 is provided with adjustable transformer 6, control box 2, electronic switch-on subassembly all set up the surface of mounting panel 4, control box 2 with voltmeter 5, adjustable transformer 6 are connected through first connecting wire 7, second connecting wire 8 respectively, adjustable transformer 6 with electronic switch-on subassembly is connected through third connecting wire 9, electronic switch-on subassembly includes power unit, switch-on mechanism, power unit sets up one side of adjustable transformer 6, switch-on mechanism sets up the below of power unit, movable contact plate 10, the quiet contact plate 11 of switch-on mechanism pass through the connecting wire respectively with control box 2.
The power mechanism is composed of an electromagnet 12, and the electromagnet 12 is fixedly connected with the upper end surface of the mounting plate 4 through a fixing plate 13.
The switching-on mechanism comprises a fixed sleeve 14 and a movable block 15 arranged on the inner side of the fixed sleeve 14, an insulating movable rod 16 is arranged on the upper surface of the movable block 15, and a metal block at the upper end of the insulating movable rod 16 is in adsorption connection with the electromagnet 12.
The movable contact plate 10 is integrally sleeved on the outer side of the middle part of the insulating movable rod 16, and the static contact plate 11 is arranged above the movable contact plate 10 and fixedly connected with the mounting plate 4.
The outside of insulating movable rod 16 is provided with canceling release mechanical system, canceling release mechanical system include with mounting panel 4 fixed surface connects's limiting plate 17, set up limit compression spring 18 in the insulating movable rod 16 outside, limit compression spring 18's both ends respectively with limiting plate 17, movable block 15 butt.
The closing mechanism further comprises a protective cover 19, and the protective cover 19 is integrally sleeved on the outer sides of the insulating movable rod 16 and the fixed sleeve 14.
Specifically, when the utility model is used, the whole device is installed, in the use process, the voltage of the input lead 3 is monitored in real time through the voltmeter 5, detected data is sent to the control box 2, the control box 2 carries out proportional control on the output voltage of the adjustable transformer 6 according to the detected data, so that the magnetic force of the electromagnet 12 is controlled, the position of the insulating movable rod 16 is controlled according to the magnetic force, and then the opening or closing of the switch is realized.
In the above process, for example, when the detected voltage is 100V, the control box 2 controls the output voltage to be 1V through the adjustable transformer 6, at this time, when the rated voltage of the electromagnet 12 is 1V, that is, the magnetic force generated by the electromagnet 12, the insulating movable rod 16 and the movable contact plate 10 synchronously move upwards until the movable contact plate 10 contacts with the static contact plate 11, so as to realize closing, wherein when the voltage fluctuates, that is, when the detected voltage is 110V or 90V, the voltage difference is +/-10V, the control box 2 reduces the output voltage according to the absolute value in an equal proportion according to the absolute value, and at this time, the electromagnet 12 is in a non-working state, that is, the rest movable contact plates 10 of the static contact plate 11 are separated, so as to realize opening.
In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic reclosing alternating current photovoltaic cabinet that is incorporated into power networks, its characterized in that, including cabinet body (1) and control box (2), electronic combined floodgate subassembly, the inside of cabinet body (1) is extended there is input wire (3), the inside of cabinet body (1) is provided with mounting panel (4), the surface of mounting panel (4) is provided with voltmeter (5) of being connected with input wire (3), mounting panel (4) are in one side of voltmeter (5) is provided with adjustable transformer (6), control box (2), electronic combined floodgate subassembly all set up the surface of mounting panel (4), control box (2) with voltmeter (5), adjustable transformer (6) are connected through first connecting wire (7), second connecting wire (8) respectively, adjustable transformer (6) with electronic combined floodgate subassembly is connected through third connecting wire (9), electronic combined floodgate subassembly includes power unit, power unit sets up one side of adjustable transformer (6), power unit sets up below connecting wire (10), dynamic contact plate (11) are passed through to be connected with static contact plate (11).
2. The automatic reclosing ac photovoltaic grid-connected cabinet according to claim 1, wherein: the power mechanism is composed of an electromagnet (12), and the electromagnet (12) is fixedly connected with the upper end surface of the mounting plate (4) through a fixing plate (13).
3. The automatic reclosing ac photovoltaic grid-connected cabinet according to claim 2, wherein: the switching-on mechanism comprises a fixed sleeve (14) and a movable block (15) arranged on the inner side of the fixed sleeve (14), an insulating movable rod (16) is arranged on the upper surface of the movable block (15), and a metal block at the upper end of the insulating movable rod (16) is in adsorption connection with the electromagnet (12).
4. The automatic reclosing ac grid-connected photovoltaic grid-connected cabinet according to claim 3, wherein: the movable contact plate (10) is integrally sleeved on the outer side of the middle of the insulating movable rod (16), and the static contact plate (11) is arranged above the movable contact plate (10) and fixedly connected with the mounting plate (4).
5. The automatic reclosing ac grid-connected photovoltaic grid-connected cabinet according to claim 3, wherein: the outside of insulating movable rod (16) is provided with canceling release mechanical system, canceling release mechanical system include with limiting plate (17) of mounting panel (4) fixed surface connection, set up limit compression spring (18) in insulating movable rod (16) outside, limit compression spring (18) both ends respectively with limiting plate (17), movable block (15) butt.
6. The automatic reclosing ac grid-connected photovoltaic grid-connected cabinet according to claim 3, wherein: the switching-on mechanism further comprises a protective cover (19), and the protective cover (19) is integrally sleeved on the outer sides of the insulating movable rod (16) and the fixed sleeve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414939.3U CN220253822U (en) | 2023-06-06 | 2023-06-06 | Automatic reclosing alternating current photovoltaic grid-connected cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321414939.3U CN220253822U (en) | 2023-06-06 | 2023-06-06 | Automatic reclosing alternating current photovoltaic grid-connected cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220253822U true CN220253822U (en) | 2023-12-26 |
Family
ID=89232763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321414939.3U Active CN220253822U (en) | 2023-06-06 | 2023-06-06 | Automatic reclosing alternating current photovoltaic grid-connected cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220253822U (en) |
-
2023
- 2023-06-06 CN CN202321414939.3U patent/CN220253822U/en active Active
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