CN113938099B - Photovoltaic junction box with hydrophobic and heat dissipation functions - Google Patents
Photovoltaic junction box with hydrophobic and heat dissipation functions Download PDFInfo
- Publication number
- CN113938099B CN113938099B CN202111080931.3A CN202111080931A CN113938099B CN 113938099 B CN113938099 B CN 113938099B CN 202111080931 A CN202111080931 A CN 202111080931A CN 113938099 B CN113938099 B CN 113938099B
- Authority
- CN
- China
- Prior art keywords
- junction box
- terminal box
- particles
- heat
- hydrophobic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000002146 bilateral effect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000002352 surface water Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- 239000005871 repellent Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920013636 polyphenyl ether polymer Polymers 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
- H02S40/345—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes with cooling means associated with the electrical connection means, e.g. cooling means associated with or applied to the junction box
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a photovoltaic terminal box with drainage and heat dissipation function includes the terminal box and installs the diode in the terminal box, the outside of terminal box is equipped with the drainage layer, and the microstructure on drainage layer surface is the pappy structure, the inboard of terminal box is interior to be doped with a plurality of heat conduction particle, inlays on the inner wall of terminal box and is equipped with two bilateral symmetry's heat conduction copper sheet, anodal and the negative pole of diode link to each other with first heat conduction copper sheet and second heat conduction copper sheet respectively. This photovoltaic terminal box has add the one deck hydrophobic layer on the terminal box surface, through being greater than 150 contact angles between hydrophobic layer and the terminal box surface water droplet, makes the water droplet can not stop on the hydrophobic layer surface, has strengthened the hydrophobic properties of terminal box, and this photovoltaic terminal box simultaneously through heat conduction copper sheet and the heat conduction route of constituteing by multiple heat conduction particle, can in time outwards discharge the heat of terminal box inside, has improved the heat dispersion of terminal box greatly.
Description
Technical Field
The invention relates to a photovoltaic junction box, in particular to a photovoltaic junction box with hydrophobic and heat dissipation functions.
Background
With the development of photovoltaic technology, the market demand for high power components is increasing. The current technologies mainly used for increasing the power of the component are battery technology and component technology: the battery technology is mainly upgraded from P type to N type; component technology is mainly size upgrades. These technologies are developed to make the short-circuit current of the components become larger and larger, for example, the short-circuit current of 166 components is about 11.6A, the short-circuit current of 182 components is about 13.9A, and the short-circuit current of 210 components reaches 18.6A, so that the terminal box is required to solve the problems of hydrophobicity and heat dissipation based on the current situation of high short-circuit current of the components under high power components.
The existing junction box is made of polyphenyl ether (PPO) material with water absorption rate, and the existing junction box is made of polyphenyl ether (PPO) material with water absorption rate. Such a solution has two problems: (1) in terms of hydrophobicity: because the PPO material has lower absorptivity, water drops on the surface of the junction box still possibly enter the junction box along the gap of the junction box, and short circuit risks can occur; (2) in terms of heat dissipation: although the internal structure of the junction box is optimized to achieve the cooling scheme for increasing the volume of the internal space, the cooling scheme not only increases the cost, but also has poor actual heat dissipation effect, and in addition, the heat can be always remained in the junction box through increasing the heat dissipation fin device, so that the heat cannot be released to the external environment, and the heat dissipation performance of the junction box is poor.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a photovoltaic junction box with hydrophobic and heat dissipation functions.
The utility model provides a photovoltaic terminal box with drainage and heat dissipation function includes the terminal box and installs the diode in the terminal box, the outside of terminal box is equipped with the drainage layer, and the microstructure on drainage layer surface is the pappy structure, the doping has a plurality of heat conduction particle in the inner wall of terminal box, forms the heat conduction passageway each other between the adjacent heat conduction particle to inlay on the inner wall of terminal box and be equipped with two bilateral symmetry's heat conduction copper sheet, anodal and the negative pole of diode link to each other with first heat conduction copper sheet and second heat conduction copper sheet through first connection piece and second connection piece respectively.
Preferably, the junction box is of a hollow round structure.
Preferably, the hydrophobic layer is obtained after micro-nano double structuring treatment.
In order to enhance the water repellency of the junction box, it is preferable that the contact angle between the emulsion-like structure of the water repellent layer surface and the water droplet of the junction box surface is greater than 150 °.
Preferably, three kinds of heat conducting particles are doped in the inner wall of the junction box, and the three kinds of heat conducting particles are BN particles, alN particles and Al 2O3 particles respectively.
Preferably, the BN particles, alN particles and Al 2O3 particles are different in particle size and filling ratio.
The beneficial effects are that: the invention discloses a photovoltaic junction box with hydrophobic and heat dissipation functions, wherein a layer of hydrophobic layer with a microstructure of a latex-shaped structure is additionally arranged on the surface of the junction box, water drops can not stay on the surface of the hydrophobic layer through a contact angle between the hydrophobic layer and the water drops on the surface of the junction box, the technical problem that the water drops can be immersed into the junction box along gaps of the junction box is solved, the hydrophobic performance of the junction box is enhanced, and meanwhile, the photovoltaic junction box can timely discharge heat in the junction box outwards through a heat conducting copper sheet and a heat conducting passage formed by a plurality of heat conducting particles, so that the heat dissipation performance of the junction box is greatly improved.
Drawings
FIG. 1 is a schematic structural view of a photovoltaic junction box;
FIG. 2 is a schematic view of the microstructure of the hydrophobic layer;
FIG. 3 is a schematic view of the structure of the inner wall of the junction box;
In the figure: 1. junction box 2, diode 21, positive electrode 22, negative electrode 23, first connection piece 24, second connection piece 3, water-repellent layer 4, heat conductive particles 41, BN particles 42, alN particles 43, al 2O3 particles 5, heat conductive path 6, heat conductive copper piece 61, first heat conductive copper piece 62, second heat conductive copper piece.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are intended to be illustrative only and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1 to 3, a photovoltaic junction box with water-repellent and heat-radiating functions comprises a junction box 1 and a diode 2 installed in the junction box 1, wherein a water-repellent layer 3 is arranged on the outer side of the junction box 1, the microstructure on the surface of the water-repellent layer 3 is of a milk convex structure, a plurality of heat-conducting particles 4 are doped in the inner wall of the junction box 1, heat-conducting passages 5 are formed between adjacent heat-conducting particles 4, two bilaterally symmetrical heat-conducting copper sheets 6 are embedded in the inner wall of the junction box 1, and a positive electrode 21 and a negative electrode 22 of the diode 2 are connected with a first heat-conducting copper sheet 61 and a second heat-conducting copper sheet 62 through a first connecting sheet 23 and a second connecting sheet 24 respectively.
In this embodiment, the junction box 1 has a hollow circular structure.
In this embodiment, the hydrophobic layer 3 is obtained after micro-nano double structuring treatment.
In order to enhance the water repellency of the junction box 1, in this embodiment, the contact angle between the emulsion-like structure of the surface of the water repellent layer 3 and the water droplet on the surface of the junction box 1 is greater than 150 °.
In the present embodiment, three kinds of heat conductive particles 4 are doped in the inner wall of the junction box 1, the three kinds of heat conductive particles 4 are BN particles 41, alN particles 42, and Al 2O3 particles 43, respectively, and the particle diameters and filling ratios of the BN particles 41, alN particles 42, and Al 2O3 particles 43 are different.
This photovoltaic terminal box has add the hydrophobic layer that one deck microstructure is the pappy structure on the terminal box surface, through being greater than 150 contact angles between hydrophobic layer and the terminal box surface water droplet, make the water droplet can not stop on the hydrophobic layer surface, solved the water droplet and can immerse the inside technical problem of terminal box along terminal box gap department, strengthened the hydrophobicity of terminal box, this photovoltaic terminal box simultaneously through heat conduction copper sheet and the heat conduction route of constituteing by multiple heat conduction particle, can outwards discharge the heat of terminal box inside in time, improved the heat dispersion of terminal box greatly.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (4)
1. The photovoltaic junction box is characterized by comprising a junction box and a diode arranged in the junction box, wherein a hydrophobic layer is arranged on the outer side of the junction box, the microstructure on the surface of the hydrophobic layer is of an emulsion-shaped structure, a plurality of heat conducting particles are doped in the inner wall of the junction box, heat conducting paths are formed between adjacent heat conducting particles, two bilaterally symmetrical heat conducting copper sheets are embedded in the inner wall of the junction box, and the anode and the cathode of the diode are connected with the first heat conducting copper sheet and the second heat conducting copper sheet through a first connecting sheet and a second connecting sheet respectively;
The hydrophobic layer is obtained after micro-nano double structuring treatment;
Three kinds of heat conducting particles are doped in the inner wall of the junction box, and the three kinds of heat conducting particles are BN particles, alN particles and Al 2O3 particles respectively.
2. The photovoltaic junction box with hydrophobic and heat dissipation functions according to claim 1, wherein the junction box is of a hollow circular structure.
3. A photovoltaic junction box with hydrophobic and heat dissipation functions according to claim 1, characterized in that the contact angle between the emulsion-like structure of the surface of the hydrophobic layer and the water drops on the surface of the junction box is greater than 150 °.
4. The photovoltaic junction box with hydrophobic and heat dissipation functions according to claim 1, wherein the particle sizes and filling ratios of BN particles, alN particles and Al 2O3 particles are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080931.3A CN113938099B (en) | 2021-09-15 | 2021-09-15 | Photovoltaic junction box with hydrophobic and heat dissipation functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111080931.3A CN113938099B (en) | 2021-09-15 | 2021-09-15 | Photovoltaic junction box with hydrophobic and heat dissipation functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113938099A CN113938099A (en) | 2022-01-14 |
| CN113938099B true CN113938099B (en) | 2024-07-16 |
Family
ID=79275652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111080931.3A Active CN113938099B (en) | 2021-09-15 | 2021-09-15 | Photovoltaic junction box with hydrophobic and heat dissipation functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113938099B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934194A (en) * | 2015-07-09 | 2015-09-23 | 南车株洲电机有限公司 | Auxiliary transformer used for electric locomotive |
| CN105041010A (en) * | 2015-08-24 | 2015-11-11 | 华北电力大学 | Floating point type passive nuclear containment with super-hydrophobic surface |
| CN210183285U (en) * | 2019-08-21 | 2020-03-24 | 西安中易建科技有限公司 | Junction box, photovoltaic module and curtain wall |
| CN213125974U (en) * | 2020-09-11 | 2021-05-04 | 西安隆基绿能建筑科技有限公司 | Photovoltaic junction box and photovoltaic module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006147737A (en) * | 2004-11-18 | 2006-06-08 | Oonanba Kk | Terminal box for photovoltaic panel |
| CN202549880U (en) * | 2012-03-09 | 2012-11-21 | 嘉兴优太太阳能有限公司 | Junction box with diode welded by grooved metal sheets |
| CN205453621U (en) * | 2016-04-06 | 2016-08-10 | 信阳师范学院 | Self -cleaning photovoltaic assembly |
| CN105783575A (en) * | 2016-05-17 | 2016-07-20 | 李国胜 | Heat exchanging piece and indoor temperature adjusting system |
| CN106026906B (en) * | 2016-08-04 | 2018-07-31 | 欧贝黎新能源科技股份有限公司 | A kind of solar photovoltaic assembly special junction box |
| CN106685342B (en) * | 2017-03-10 | 2018-06-19 | 江苏通灵电器股份有限公司 | Solar power generation component chip seal pressure formula terminal box and its processing method |
| CN209756272U (en) * | 2019-02-22 | 2019-12-10 | 北京那一米科技有限公司 | Super-hydrophobic nanometer cloth and super-hydrophobic raincoat |
-
2021
- 2021-09-15 CN CN202111080931.3A patent/CN113938099B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934194A (en) * | 2015-07-09 | 2015-09-23 | 南车株洲电机有限公司 | Auxiliary transformer used for electric locomotive |
| CN105041010A (en) * | 2015-08-24 | 2015-11-11 | 华北电力大学 | Floating point type passive nuclear containment with super-hydrophobic surface |
| CN210183285U (en) * | 2019-08-21 | 2020-03-24 | 西安中易建科技有限公司 | Junction box, photovoltaic module and curtain wall |
| CN213125974U (en) * | 2020-09-11 | 2021-05-04 | 西安隆基绿能建筑科技有限公司 | Photovoltaic junction box and photovoltaic module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113938099A (en) | 2022-01-14 |
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