CN203590145U - Small glue pouring photovoltaic junction box - Google Patents
Small glue pouring photovoltaic junction box Download PDFInfo
- Publication number
- CN203590145U CN203590145U CN201320725935.7U CN201320725935U CN203590145U CN 203590145 U CN203590145 U CN 203590145U CN 201320725935 U CN201320725935 U CN 201320725935U CN 203590145 U CN203590145 U CN 203590145U
- Authority
- CN
- China
- Prior art keywords
- base
- base plate
- terminal
- junction box
- upper cover
- 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.)
- Expired - Lifetime
Links
- 239000003292 glue Substances 0.000 title abstract 5
- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000565 sealant Substances 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005855 radiation Effects 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
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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 discloses a small glue pouring photovoltaic junction box including 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 diode is installed on each terminal. Photovoltaic cables pass through wire pressing buckles installed in the base and are connected with the terminals. Sealing glue is filled in the base and above the bottom plate. 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; metal pieces are filled in an inner cavity of a box body, a cooling area after glue pouring is enlarged and heat is uniformly distributed; and the periphery of the base is bent to form hoardings, empty cavities are then formed through the hoardings, the glue pouring amount is reduced and the cooling is meanwhile sped up.
Description
Technical field
The utility model relates to field of photovoltaic power generation, relates in particular to a kind of small-sized encapsulating type photovoltaic junction box being applied 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.Due to the normally outdoor environment of application scenario of photovoltaic junction box, therefore prevent that the medium such as rainwater from infiltrating and affect the Consideration that inner electrical connection is an outbalance in photovoltaic junction box design.Encapsulating type photovoltaic junction box is realized water-tight by encapsulating, is solution preferably at present.Current encapsulating type photovoltaic junction box is identical with common terminal 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 dwindling as far as possible under the prerequisite of photovoltaic junction box volume, be implemented to sealing effectiveness, make encapsulating type photovoltaic junction box there is good heat dissipation ventilation effect simultaneously, become the focus of industry research.
Utility model content
The purpose of this utility model is to provide a kind of small-sized encapsulating type photovoltaic junction box with high heat dispersion and sealing property; by integral heat sink characteristics design and mounting structure design; dwindling as far as possible under the prerequisite of photovoltaic junction box volume; realize encapsulating type photovoltaic junction box cross-ventilation, flash heat transfer; reach internal heat balance and protect diode, making product there is higher reliability.
The technical solution of the utility model is as follows:
A kind of small-sized encapsulating type 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, between each terminal, diode is installed; Photovoltaic cable is connected with terminal through the Line pressing buckle being arranged in base; In described base, in base plate top, fill and have fluid sealant;
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;
It is bending along base plate shape and perpendicular to the coaming plate of base end face that described base periphery is provided with; On described base, there are the multiple cavitys that surrounded by coaming plate; Described upper cover top surface has projection upwards, and the end face of described upper cover or side have the ventilation hole corresponding with empty cavity position on base.
Its further technical scheme is: the pin of described diode is welded on two adjacent terminals, and described terminal is installed on base plate, and described base plate is installed on base.
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 the area of dissipation after encapsulating larger, the heat in box body is more evenly distributed; By base periphery is bent to form to coaming plate, and form multiple cavitys by coaming plate, when having reduced encapsulating amount, make again heat radiation accelerate; By the design of upper cover surface convex, effectively increased photovoltaic junction box inner space, be also conducive to the raising of heat dispersion.
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 superstructure figure of the present utility model.
Fig. 3 is base arrangement figure of the present utility model.
Fig. 4 is understructure figure of the present utility model.
Fig. 5 is cut-away view of the present utility model.
Fig. 6 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 5 and the upper cover 1 that mutually cover, and base plate 4 is installed in base 5, and difform multiple terminal 3 and multiple diode 2 are installed on base plate 4.See Fig. 5, mounting means is that diode 2 is installed between terminals of adjacent 3.As shown in Figure 1, two Line pressing buckles 6 are arranged in base 5, and two strands of photovoltaic cables 7 pass respectively Line pressing buckle 6 and weld with terminal 3.
As shown in Figure 5, two pins of diode 2 are welded on two adjacent terminals 3, and terminal 3 is installed on base plate 4, and base plate 4 is installed to again on base 5.
Because the utility model is encapsulating type, therefore in base 5, in the space above base plate 4, be all perfused with fluid sealant.See Fig. 3, Fig. 6, on base plate 4, the bottom surface of mounting terminal 3 is not provided with through hole 4-1, pasting boards (not shown) sealing for through hole 4-1 bottom, and therefore fluid sealant can not flow in the space of through hole 4-1 below.
As shown in Figure 6, when base plate 4 be assemblied in base 5 interior after, the bottom surface of base plate 4 on different horizontal planes, has convection cavity 5-1 on base 5 bottom surfaces of base plate 4 belows from the bottom surface of base 5.Wherein, terminal 3, base plate 4 adopt heat proof material, for example metal; Base 5 adopts nonrefractory material.Such structure, make base 5 bottoms and base plate 4 height of formations of photovoltaic junction box poor, not direct contact solar backboard of the most serious terminal 3 of box body internal heat generation, base plate 4 positions, avoided the heat on terminal 3, base plate 4 to be transmitted to fast on base 5, thus the solar panel of impact below.
Again as shown in Figure 5, metalwork terminal 3, base plate 4 are distributed in base 5, have covered more than at least 90% base area of base 5 inner chambers, have substantially been covered with box body inner chamber, and the area of dissipation after encapsulating is larger like this, and the heat in box body is more evenly distributed.
As shown in Figure 4, it is bending along base plate 4 shapes and perpendicular to the coaming plate 5-2 of base 5 bottom surfaces that base 5 peripheries are provided with, and coaming plate 5-2 is the encirclement to fluid sealant during for encapsulating.On base 5, also have the multiple cavity 5-3 that form after being connected by coaming plate 5-2, the position of cavity 5-3, without encapsulating, has reduced encapsulating amount, has saved cost, and cavity 5-3 can make again heat radiation faster simultaneously, kills two birds with one stone.
As shown in Figure 2, upper cover 1 end face has protruding 1-1 upwards, has effectively increased box body inner space, is also conducive to the raising of heat dispersion; Meanwhile, the end face of upper cover 1 and side have the ventilation hole 1-2 corresponding with cavity 5-3 position on base 5; In embodiment, the end face of upper cover 1 middle part has a ventilation hole 1-2 corresponding with middle cavity 5-3 position on base 5, and the side of upper cover 1 has two the ventilation hole 1-2s corresponding with cavity 5-3 position, both sides on base 5.This structure can form the inside and outside cross-ventilation of box body, plays the effect of radiating and cooling.
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 (2)
1. a small-sized encapsulating type photovoltaic junction box, comprise the base (5) and the upper cover (1) that mutually cover, base plate (4) is installed in described base (5), multiple terminals (3) are installed on described base plate (4), diode (2) is installed between each terminal (3); Photovoltaic cable (7) is connected with terminal (3) through the Line pressing buckle (6) being arranged in base (5); In described base (5), in base plate (4) top, fill and have fluid sealant;
It is characterized in that: described terminal (3), base plate (4) are distributed in base (5); Described terminal (3), base plate (4) adopt heat proof material, and described base (5) adopts nonrefractory material; After in described base plate (4) is assemblied in base (5), the bottom surface of base plate (4) on different horizontal planes, has convection cavity (5-1) on base (5) bottom surface of described base plate (4) below from the bottom surface of base (5); On described base plate (4), the bottom surface of mounting terminal (3) is not provided with through hole (4-1), and described through hole (4-1) bottom is sealed by pasting boards;
It is bending along base plate (4) shape and perpendicular to the coaming plate (5-2) of base (5) bottom surface that described base (5) periphery is provided with; On described base (5), there are the multiple cavitys (5-3) that surrounded by coaming plate (5-2); Described upper cover (1) end face has projection (1-1) upwards, and the end face of described upper cover (1) or side have the ventilation hole (1-2) corresponding with cavity (6-3) position on base (6).
2. small-sized encapsulating type photovoltaic junction box according to claim 1, it is characterized in that: the pin of described diode (2) is welded on adjacent two terminals (3), it is upper that described terminal (3) is installed to base plate (4), and described base plate (4) is installed on base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725935.7U CN203590145U (en) | 2013-11-16 | 2013-11-16 | Small glue pouring photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320725935.7U CN203590145U (en) | 2013-11-16 | 2013-11-16 | Small glue pouring photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590145U true CN203590145U (en) | 2014-05-07 |
Family
ID=50587992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320725935.7U Expired - Lifetime CN203590145U (en) | 2013-11-16 | 2013-11-16 | Small glue pouring photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590145U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701407A (en) * | 2013-11-16 | 2014-04-02 | 浙江鑫辉光伏科技有限公司 | Small sealant filling photovoltaic junction box |
-
2013
- 2013-11-16 CN CN201320725935.7U patent/CN203590145U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701407A (en) * | 2013-11-16 | 2014-04-02 | 浙江鑫辉光伏科技有限公司 | Small sealant filling photovoltaic junction box |
| CN103701407B (en) * | 2013-11-16 | 2016-06-08 | 浙江鑫辉光伏科技有限公司 | Small-sized sealant filling photovoltaic junction box |
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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 |