CN203590146U - Thermally conductive structure for photovoltaic junction box - Google Patents
Thermally conductive structure for photovoltaic junction box Download PDFInfo
- Publication number
- CN203590146U CN203590146U CN201320727525.6U CN201320727525U CN203590146U CN 203590146 U CN203590146 U CN 203590146U CN 201320727525 U CN201320727525 U CN 201320727525U CN 203590146 U CN203590146 U CN 203590146U
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- Prior art keywords
- base
- base plate
- terminal
- utility
- model
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- Expired - Lifetime
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- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 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
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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a thermally conductive structure for a photovoltaic junction box. The thermally conductive structure includes a base and an upper cover which are mutually covered. A bottom plate is installed in the base, and terminals are installed on the base. A belt clip and a diode are installed on each terminal. Photovoltaic cables pass through wire pressing buckles installed in the base and are connected with the terminals. According to the utility model, the hottest part is not in direct contact with a solar energy backplane, the bottom of the base is provided with a convection chamber, the bottom surface of the base forms a height difference with the bottom plate, and the upper cover is provided with ventilation holes, with good cooling effects; and metal pieces are filled in an inner cavity of a box body, a cooling area is enlarged and heat is uniformly distributed.
Description
Technical field
The utility model relates to field of photovoltaic power generation, relates in particular to a kind of heat conduction structure that is applied to the photovoltaic junction box in photovoltaic generating system.
Background technology
In the electric connection technology of photovoltaic generating system, conventionally adopt photovoltaic junction box to realize the electrical connection between photovoltaic module and inverter.Current photovoltaic junction box, is all that installation cavity is set between box body, and diode is arranged in installation cavity.Because diode can produce higher temperature when working, along with the continuous rising of diode temperature, the resistance in diode will constantly increase, and cause diode to produce more heat, thereby waste more electric power resource, enter vicious circle.In order to guarantee that photovoltaic junction box has better thermal diffusivity, the general method that increases installation cavity volume in photovoltaic junction box that adopts, thereby increased thickness and the volume of whole photovoltaic junction box, the more important thing is, adopted and be difficult in this way the radiating effect that reaches good.Therefore, how to make photovoltaic junction box there is good heat dissipation ventilation effect, become the focus of industry research.
Utility model content
The purpose of this utility model is to provide a kind of heat conduction structure of photovoltaic junction box, by integral heat sink characteristics design, realizes photovoltaic junction box cross-ventilation, flash heat transfer, reaches internal heat balance and protects diode, makes product have higher reliability.
The technical solution of the utility model is as follows:
A heat conduction structure for photovoltaic junction box, comprises the base and the upper cover that mutually cover, in described base, base plate is installed, and multiple terminals are installed on described base plate, on each terminal, is separately installed with strap clamp, between each terminal, diode is installed; Photovoltaic cable is connected with terminal through the Line pressing buckle being arranged in base; Described terminal, base plate are distributed in base; Described terminal, base plate adopt heat proof material, and described base adopts nonrefractory material; After described base plate is assemblied in base, the bottom surface of base plate on different horizontal planes, has convection cavity on the base end face of described base plate below from the bottom surface of base; On described base plate, the bottom surface of mounting terminal is not provided with through hole, and described via bottoms is sealed by pasting boards.
Useful technique effect of the present utility model is:
The utility model is on hot speciality is optimized, make direct contact solar backboard of hot spot, in the base bottom at place, hot spot, offer the convection cavity of hollow out, and it is poor to make base end face and base plate directly form shoulder height, by above covering the ventilation hole of processing, heat is dispersed fast simultaneously, played the effect of radiating and cooling; By metalwork being covered with to box body inner chamber, make area of dissipation larger, the heat in box body is more evenly distributed.
Advantage of the present utility model will provide in the description of embodiment part below, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is exploded view of the present utility model.
Fig. 2 is base arrangement figure of the present utility model.
Fig. 3 is understructure figure of the present utility model.
Fig. 4 is cut-away view of the present utility model.
Fig. 5 is structure figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, the utility model comprises the base 6 and the upper cover 1 that mutually cover, and base plate 5 is installed in base 6, and difform multiple terminal 4 is installed on base plate 5, multiple strap clamps 2 and multiple diode 3.See Fig. 4, mounting means is that diode 3 is installed between terminals of adjacent 4, on each terminal 4, strap clamp 2 is installed respectively, and two pins of diode 3 are welded on two adjacent terminals 4, and terminal 4 is installed on base plate 5, and base plate 5 is installed to again on base 6.As shown in Figure 1, two Line pressing buckles 7 are arranged in base 6, and two strands of photovoltaic cables 8 pass respectively Line pressing buckle 7 and weld with terminal 4.
If the utility model is encapsulating type, in base 6, in the space above base plate 5, pour into fluid sealant.See Fig. 2, Fig. 5, on base plate 5, the bottom surface of mounting terminal 4 is not provided with through hole 5-1, pasting boards (not shown) sealing for through hole 5-1 bottom, and therefore fluid sealant can not flow in the space of through hole 5-1 below.
As shown in Figure 5, when base plate 5 be assemblied in base 6 interior after, the bottom surface of base plate 5, has convection cavity 6-1(on base 6 bottom surfaces of base plate 5 belows and sees Fig. 3 from the bottom surface of base 6 on different horizontal planes).Wherein, terminal 4, base plate 5 adopt heat proof material, for example metal; Base 6 adopts nonrefractory material.Such structure, make base 6 bottoms and base plate 5 height of formations of photovoltaic junction box poor, not direct contact solar backboard of the most serious terminal 4 of box body internal heat generation, base plate 5 positions, avoided the heat on terminal 4, base plate 5 to be transmitted to fast on base 6, thus the solar panel of impact below.
Again as shown in Figure 4, metalwork terminal 4, base plate 5 are distributed in base 6, have covered more than at least 90% base area of base 6 inner chambers, have substantially been covered with box body inner chamber, and area of dissipation is larger like this, and the heat in box body is more evenly distributed.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite that does not depart from spirit of the present utility model and design, within all should thinking and being included in protection range of the present utility model.
Claims (1)
1. the heat conduction structure of a photovoltaic junction box, comprise the base (6) and the upper cover (1) that mutually cover, base plate (5) is installed in described base (6), multiple terminals (4) are installed on described base plate (5), on each terminal (4), be separately installed with strap clamp (2), diode (3) is installed between each terminal (4); Photovoltaic cable (8) is connected with terminal (4) through the Line pressing buckle (7) being arranged in base (6); It is characterized in that: described terminal (4), base plate (5) are distributed in base (6); Described terminal (4), base plate (5) adopt heat proof material, and described base (6) adopts nonrefractory material; After in described base plate (5) is assemblied in base (6), the bottom surface of base plate (5) on different horizontal planes, has convection cavity (6-1) on base (6) bottom surface of described base plate (5) below from the bottom surface of base (6); On described base plate (5), the bottom surface of mounting terminal (4) is not provided with through hole (5-1), and described through hole (5-1) bottom is sealed by pasting boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727525.6U CN203590146U (en) | 2013-11-16 | 2013-11-16 | Thermally conductive structure for photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727525.6U CN203590146U (en) | 2013-11-16 | 2013-11-16 | Thermally conductive structure for photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590146U true CN203590146U (en) | 2014-05-07 |
Family
ID=50587993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727525.6U Expired - Lifetime CN203590146U (en) | 2013-11-16 | 2013-11-16 | Thermally conductive structure for photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590146U (en) |
-
2013
- 2013-11-16 CN CN201320727525.6U patent/CN203590146U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |