CN213094154U - Protection device of direct current collection flow box for photovoltaic power generation - Google Patents
Protection device of direct current collection flow box for photovoltaic power generation Download PDFInfo
- Publication number
- CN213094154U CN213094154U CN202021108788.5U CN202021108788U CN213094154U CN 213094154 U CN213094154 U CN 213094154U CN 202021108788 U CN202021108788 U CN 202021108788U CN 213094154 U CN213094154 U CN 213094154U
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- Prior art keywords
- hole
- power generation
- photovoltaic power
- collection flow
- flow box
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- 238000010248 power generation Methods 0.000 title claims abstract description 14
- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims abstract description 15
- 239000004065 semiconductor Substances 0.000 claims abstract description 15
- 230000001012 protector Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 23
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006378 damage Effects 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 230000002265 prevention Effects 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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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
Abstract
The utility model belongs to the technical field of electrical safety protection device, and a protector of DC collection flow box for photovoltaic power generation is disclosed, including protecting sheathing, door plant and inner structure, set up the mounting panel in the protecting sheathing, first through-hole and second through-hole have been seted up in proper order to protecting sheathing top from inside to outside, are equipped with the heat dissipation fan between two through-holes, be provided with the semiconductor refrigeration piece in the first through-hole, the utility model discloses, through the semiconductor refrigeration piece in time transmit the heat that the collection flow box body during operation produced to one side that is close to the casing to discharge through the second through-hole under the effect of heat dissipation fan, this kind of structure is carrying out safety protection to the collection flow box body, when avoiding rain erosion or bodily injury, has prevented that electrical component from taking place the damage because of overheated under the closed environment for the collection flow box can be more stable, reliable work.
Description
Technical Field
The utility model belongs to the technical field of electrical safety protector, concretely relates to protector of direct current collection flow box for photovoltaic power generation.
Background
The junction box is a wiring device for ensuring orderly connection and confluence functions of photovoltaic modules in a photovoltaic power generation system, can ensure that the photovoltaic system is easy to cut off a circuit during maintenance and inspection, reduces the power failure range when the photovoltaic system breaks down, and is a complete photovoltaic power generation system formed by connecting a plurality of photovoltaic strings in parallel by a user through a controller, a direct current power distribution cabinet, a photovoltaic inverter and an alternating current power distribution cabinet after the photovoltaic strings are connected in parallel into the photovoltaic junction box, wherein after the photovoltaic junction box is subjected to confluence, the junction box is finally matched with the alternating current power distribution cabinet through the controller, the direct current power distribution cabinet, the photovoltaic inverter and the alternating current power distribution cabinet, and the junction box has the working voltage of 750V-1000V, so that non-professional people are easy to get an electric shock by accidental touch, and is mostly installed in an outdoor photovoltaic electric field, so that the electrical elements in the junction box are easily damaged in rainwater weather, the user must increase the protection casing at the scene, and ordinary protection casing is difficult to have waterproof, fire prevention, protection against electric shock and radiating function concurrently, has installed often to discover behind the protection casing that the collection flow box ventilation cooling effect is worse, uses the back for a long time, and the inside high temperature of collection flow box brings the burden for the work of the electric elements who converges in the flow box.
Chinese patent publication No. CN207753682U discloses a box body of a bus bar box, wherein a bottom plate for mounting electrical components is also included in the box body of the bus bar box, a baffle assembly for isolating the bus bar is fixedly connected to the front side of a position of the bottom plate for mounting the bus bar, and heat dissipation holes are formed in the baffle to help to dissipate heat of the bus bar. However, the heat dissipation holes are opened on the baffle inside the header box, and heat is still accumulated inside the header box.
SUMMERY OF THE UTILITY MODEL
Not enough to above-mentioned background art, the utility model provides a protector of direct current collection flow box for photovoltaic power generation has that the radiating effect is good and can be effectively waterproof, fire prevention, protection against electric shock, has solved the problem of proposing among the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a protector of direct current collection flow box for photovoltaic power generation, includes protective housing, door plant, first through-hole and second through-hole have been seted up in proper order to the outside at protective housing top from interior to exterior, are equipped with the heat dissipation fan between them, be provided with the semiconductor refrigeration piece in the first through-hole, be provided with the dust screen in the second through-hole.
Preferably, it is fixed to not unidimensional collection flow box installation for the convenience, be provided with the mounting panel in the protecting sheathing, seted up spout and spacing groove on the mounting panel, the spacing groove is located the below of spout and parallels with the spout, fixedly connected with bearing wears to be equipped with the pivot in the spout, the coaxial fixedly connected with two-way threaded rod of one end of pivot, other end fixedly connected with handle, threaded connection has a complex screw thread section of thick bamboo with it on the two-way threaded rod, the surface dead lever of screw thread section of thick bamboo is connected with the holder, sliding connection has the stopper in the spacing groove, and the upper surface of stopper is connected with the fixed surface of screw thread section of thick bamboo.
Preferably, install the guard plate on the second through-hole the upper surface of guard plate is provided with solar panel, protective housing's upper surface is provided with the battery. Owing to install the guard plate, prevented the rainwater entering, for better heat dissipation, the ventilation hole can be seted up on the top of collection flow box body.
Further, the upper surface of guard plate is provided with solar panel, protective housing's upper surface is provided with the battery, protective housing is last to have the door plant through hinge swing joint, the front of door plant is provided with the controller, the edge of door plant is provided with the sealing washer, the battery pass through the wire respectively with controller and solar panel electric connection, the controller pass through the wire respectively with heat dissipation fan and semiconductor refrigeration piece electric connection, can effectively utilize outdoor solar energy like this.
Preferably, the equal fixedly connected with installed part in the both sides of the protecting sheathing among the above-mentioned all schemes is provided with the cotton layer of fire prevention on the protecting sheathing inner wall.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses, through the semiconductor refrigeration piece, the heat dissipation fan, the ventilation hole, the setting of first through-hole and second through-hole etc, the semiconductor refrigeration piece is the instrument of a heat transfer, can be with the timely transmission of the heat that the flow box body during operation produced to the one side that is close to the casing that converges, and discharge through the second through-hole under the effect of heat dissipation fan, setting through guard plate and protecting sheathing, can carry out fine protection to the inside flow box body that converges of protecting sheathing, avoid the erosion of rainwater, can also make full use of sunshine resource electricity generation and storage in installation site, the energy has been saved, high durability and convenient use.
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 structural view of a front view section of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic structural view of the junction box body of the present invention;
FIG. 4 is a schematic diagram of the circuit of the present invention;
fig. 5 is a schematic sectional view of the top view of the present invention.
In the figure: 1. a mounting member; 2. a protective housing; 3. a fireproof cotton layer; 4. a combiner box body; 5. a vent hole; 6. a storage battery; 7. a door panel; 8. a controller; 9. a chute; 10. a housing; 11. a second through hole; 12. A solar panel; 13. a heat dissipation fan; 14. a limiting groove; 15. a first through hole; 16. a semiconductor refrigeration sheet; 17. Mounting a plate; 18. a bidirectional threaded rod; 19. a threaded barrel; 20. and (4) a protective plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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 belong to the protection scope of the present invention.
Examples
Referring to fig. 1-5, the present invention provides the following technical solutions: a protective device of a direct current combiner box for photovoltaic power generation is characterized in that a protective shell 2, a mounting plate 17 and a door plate 7 are manufactured according to the size of a combiner box body 4, a first through hole 15 is formed in the top end of the protective shell 2, a semiconductor refrigeration sheet 16 is arranged in the first through hole 15, a vertical cylindrical shell 10 is fixedly connected to the first through hole 15 on the upper surface of the protective shell 2, two second through holes 11 are symmetrically formed in the shell 10, a heat dissipation fan 13 is arranged in the shell 10, the semiconductor refrigeration sheet 16 is a heat transfer tool through the arrangement of the semiconductor refrigeration sheet 16, the heat dissipation fan 13, a vent hole 5, the first through hole 15, the second through hole 11 and the like, the semiconductor refrigeration sheet 16 can timely transfer heat generated during the operation of the combiner box body 4 to one side close to the shell 10 and is discharged through the second through hole 11 under the action of the heat dissipation fan 13, a dust screen is arranged in the second through hole 11, the fixed surface of the upper surface of the shell 10 is connected with a protection plate 20, and through the arrangement of the protection plate 20 and the protection shell 2, the header box body 4 inside the protection shell 2 can be well protected, so that the erosion of rainwater and dust is avoided.
The mounting plate 17 is provided with a sliding groove 9 and a limiting groove 14, the limiting groove 14 is located under the sliding groove 9 and is parallel to the sliding groove 9, two ends of the sliding groove 9 are fixedly connected with bearings, a rotating shaft penetrates through the bearings, the rotating shaft and a bidirectional threaded rod 18 are coaxial and are fixedly connected to form a whole, the whole penetrates through the two bearings, and a handle is fixed at one end of the whole. Purchase two screw thread section of thick bamboo 19 with threaded rod 18 matched with to the part difference fixed connection holder above that, the re-fixing is respectively to two stopper upper surfaces of sliding connection in the spacing groove 14, through the setting of spacing groove 14 and stopper, can carry on spacingly to screw thread section of thick bamboo 19, and screw thread section of thick bamboo 19 takes place the displacement on its surface when making two-way threaded rod 18 rotate, thereby realizes the holder to the centre gripping effect of collection flow box body 4 a plurality of ventilation holes 5 have been seted up on the top of collection flow box body 4.
Wherein the upper surface of the protection plate 20 is provided with a solar panel 12, the upper surface of the protection shell 2 is provided with a storage battery 6, the protective shell 2 is movably connected with a door plate 7 through a hinge, the front of the door plate 7 is provided with a controller 8, the edge of the door plate 7 is provided with a sealing ring, the storage battery 6 is respectively and electrically connected with the controller 8 and the solar panel 12 through wires, the controller 8 is respectively electrically connected with the heat dissipation fan 13 and the semiconductor refrigeration sheet 16 through wires, and through the arrangement of the solar panel 12 and the storage battery 6, the solar panel 12 can be used for generating electricity, the storage battery 6 stores the electric energy, the energy is saved, the use is convenient, and through the arrangement of the sealing ring, the leakproofness that door plant 7 and protective housing 2 are connected can be increased, and controller 8 can be for the conventional known equipment that the computer etc. played control, is convenient for control equipment such as heat dissipation fan 13 through setting up of controller 8.
Wherein, the equal fixedly connected with installed part 1 in both sides of protective housing 2, be provided with the cotton layer of fire prevention 3 on the 2 inner walls of protective housing, through the setting on the cotton layer of fire prevention 3, can play certain fire prevention effect, through the setting of installed part 1, the installation of the protective housing 2 of being convenient for.
The utility model discloses a theory of operation and use flow: when the utility model is used, the protective shell 2 is arranged at the place needing to be used under the action of the mounting piece 1, then the collecting box body 4 is arranged on the mounting plate 17, then the bidirectional threaded rod 18 is twisted by the handle, under the action of the limiting groove 14 and the limiting block, the thread cylinder 19 drives the clamping piece to move towards the direction close to the confluence box body 4 until the clamping piece is lapped with the confluence box body 4, then the door plate 7 is closed, the tightness of the connection between the door plate 7 and the protective shell 2 can be increased under the action of the sealing ring, the confluence box body 4 generates heat when working, the semiconductor refrigeration sheet 16 is used as a heat transfer tool, the heat generated by the operation of the confluence box body 4 can be timely transmitted to one side close to the shell 10, and is discharged through the second through hole 11 under the effect of the heat dissipation fan 13, so that the damage of heat to electrical components in the header box body 4 is reduced.
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 (5)
1. The utility model provides a protector of direct current collection flow box for photovoltaic power generation, includes protecting sheathing (2), door plant (7), its characterized in that: the top of the protective shell (2) is sequentially provided with a first through hole (15) and a second through hole (11) from inside to outside, a heat dissipation fan (13) is arranged between the first through hole and the second through hole, a semiconductor refrigeration piece (16) is arranged in the first through hole, and a dust screen is arranged in the second through hole (11).
2. The protection device of the direct current combiner box for photovoltaic power generation as claimed in claim 1, wherein: set up mounting panel (17) in the protecting sheathing, spout (9) and spacing groove (14) have been seted up on mounting panel (17), spacing groove (14) are located the below of spout (9) and parallel with spout (9), fixedly connected with bearing wears to be equipped with the pivot in spout (9) the bearing, and the coaxial fixedly connected with two-way threaded rod (18) of one end of pivot, other end fixedly connected with handle, two-way threaded rod (18) go up the spiro union with it complex screw thread section of thick bamboo (19), the surface dead lever of screw thread section of thick bamboo (19) is connected with the holder, sliding connection has the stopper in spacing groove (14), and the upper surface of stopper is connected with the fixed surface of screw thread section of thick bamboo (19).
3. The protection device of the direct current combiner box for photovoltaic power generation as claimed in claim 1, wherein: protection plate (20) are installed to second through-hole (11) top the upper surface of protection plate (20) is provided with solar panel (12), the upper surface of protective housing (2) is provided with battery (6).
4. The protection device of the DC combiner box for photovoltaic power generation as claimed in claim 3, wherein: protective housing (2) with door plant (7) pass through hinge swing joint, the front of door plant (7) is provided with controller (8), the edge of door plant (7) is provided with the sealing washer, battery (6) pass through the wire respectively with controller (8) and solar panel (12) electric connection, controller (8) pass through the wire respectively with heat dissipation fan (13) and semiconductor refrigeration piece (16) electric connection.
5. The protector for a dc combiner box for photovoltaic power generation as recited in any one of claims 1 to 4, wherein: the equal fixedly connected with installed part (1) in both sides of protective housing (2), be provided with fireproof cotton layer (3) on protective housing (2) inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108788.5U CN213094154U (en) | 2020-06-15 | 2020-06-15 | Protection device of direct current collection flow box for photovoltaic power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021108788.5U CN213094154U (en) | 2020-06-15 | 2020-06-15 | Protection device of direct current collection flow box for photovoltaic power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213094154U true CN213094154U (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021108788.5U Active CN213094154U (en) | 2020-06-15 | 2020-06-15 | Protection device of direct current collection flow box for photovoltaic power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213094154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113950210A (en) * | 2021-09-15 | 2022-01-18 | 杭州普兴汽车科技有限公司 | Power control system of kart |
-
2020
- 2020-06-15 CN CN202021108788.5U patent/CN213094154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113950210A (en) * | 2021-09-15 | 2022-01-18 | 杭州普兴汽车科技有限公司 | Power control system of kart |
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| GR01 | Patent grant | ||
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Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd. Address before: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee before: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. |