CN203590147U - Glue pouring photovoltaic junction box - Google Patents
Glue pouring photovoltaic junction box Download PDFInfo
- Publication number
- CN203590147U CN203590147U CN201320727640.3U CN201320727640U CN203590147U CN 203590147 U CN203590147 U CN 203590147U CN 201320727640 U CN201320727640 U CN 201320727640U CN 203590147 U CN203590147 U CN 203590147U
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- base
- terminal
- base plate
- junction box
- fixture block
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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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Abstract
The utility model discloses a 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 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. 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; 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; protrusive boards are added to the edges of the terminals and serve to enlarge the cooling area; a convergence belt is fixed through both welding and clamping, and the terminals, the bottom plate and the base are firmly connected, with high reliability; and with bosses acting as a fulcrum, the belt clips can easily pried to achieve installation and removal.
Description
Technical field
The utility model relates to field of photovoltaic power generation, relates in particular to a kind of 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, when being implemented to sealing effectiveness, make encapsulating type 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 encapsulating type photovoltaic junction box with high heat dispersion and sealing property; by integral heat sink characteristics design and mounting structure design; 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 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, 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; 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; The edge of described terminal has the flange perpendicular to terminal bottom surface, and the flange of described terminal contacts with the coaming plate of base; Described upper cover top surface has projection upwards, and the end face of described upper cover and side have the multiple ventilation holes 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.
Its further technical scheme is: the installed surface that the one side of described base plate is terminal, on it, comprise multiple installation units side by side, and on each installation unit, can install for a terminal; The both sides of each installation unit have respectively the fixture block pair being comprised of two fixture blocks, between right two fixture blocks of each fixture block, form gap; On described terminal, have clamp, insert respectively in the right gap of correspondence position fixture block at the two ends of described clamp; With fixture block, corresponding position is provided with to draw-in groove in described base, the size when size of described draw-in groove is less than fixture block to relaxation state, two right fixture blocks of described fixture block are connected among the draw-in groove of correspondence position and inwardly shrink, and clamp the clamp on described terminal.
Its further technical scheme is: the edge of described base is provided with boss, has the gap that Gong prizes between described boss and strap clamp.
Its further technical scheme is: on described each terminal, have for confluxing of passing of convergent belt with holes, and for the solder bath of the welding that confluxes.
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 increasing the flange of terminal edge, play the effect that increases area of dissipation after encapsulating; By the design of upper cover surface convex, effectively increased photovoltaic junction box inner space, be also conducive to the raising of heat dispersion.The utility model is on mounting structure is optimized, for the photovoltaic junction box of encapsulating type has designed the installation site of convergent belt and the fixed structure of welding and the dual assurance of clamping, designed terminal, base plate and the solid and reliable syndeton of base three, and designed boss and prize strap clamp and realize installing/dismounting to facilitate as fulcrum.
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 terminal structure figure of the present utility model.
Fig. 4 is base arrangement figure of the present utility model.
Fig. 5 is understructure figure of the present utility model.
Fig. 6 is cut-away view of the present utility model.
Fig. 7 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. 6, mounting means is that diode 3 is installed between terminals of adjacent 4, on each terminal 4, strap clamp 2 is installed respectively.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.
As shown in Figure 3, on each terminal 4, there is the 4-1 with holes that confluxes passing for convergent belt, and for the solder bath 4-3 of the welding that confluxes.When convergent belt (not shown) is installed, wear to terminal 4 tops, and be welded on the solder bath 4-3 position of terminal 4 from the below of the 4-1 with holes that confluxes of terminal 4, convergent belt is clamped fixing simultaneously by strap clamp 2, dual Reliability Assurance.
As shown in Figure 6, 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.
Here provide the connected mode of a kind of terminal 4, base plate 5, base 6.As shown in Figure 4, the one side of base plate 5 is the installed surface of terminal 4, comprises multiple installation units side by side on it, on each installation unit, can install for a terminal 4.The both sides of each installation unit have respectively the fixture block pair being comprised of two fixture block 5-1, between right two the fixture block 5-1 of each fixture block, form gap.As shown in Figure 3, have clamp 4-2 on terminal 4, during installation, insert respectively in the right gap of correspondence position fixture block at the two ends of clamp 4-2.As shown in Figure 5, in base 6, corresponding position is provided with to draw-in groove 6-4, the size when size of draw-in groove 6-4 is less than fixture block to relaxation state while not installing with fixture block; During installation, draw-in groove 6-4 and fixture block 5-1 interfere mutually, and two right fixture block 5-1 of fixture block are connected among the draw-in groove 6-4 of correspondence position and inwardly and shrink, and the clamp 4-2 clamping terminal 4 from both sides fixes.
Again as shown in Figure 5, the edge of base 6 is provided with boss 6-5, after installation, as shown in Figure 6, between boss 6-5 and strap clamp 2, has the gap that Gong prizes.By boss 6-5, as fulcrum, can conveniently prize strap clamp 2.
Because the utility model is encapsulating type, therefore in base 6, in the space above base plate 5, be all perfused with fluid sealant.See Fig. 7, on base plate 5, the bottom surface of mounting terminal 4 is not provided with through hole 5-2, pasting boards (not shown) sealing for through hole 5-2 bottom, and therefore fluid sealant can not flow in the space of through hole 5-2 below.
As shown in Figure 7, when base plate 5 be assemblied in base 6 interior after, the bottom surface of base plate 5 on different horizontal planes, has convection cavity 6-1 on base 6 bottom surfaces of base plate 5 belows from the bottom surface of base 6.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 6, 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 the area of dissipation after encapsulating is larger like this, and the heat in box body is more evenly distributed.
As shown in Figure 5, it is bending along base plate 5 shapes and perpendicular to the coaming plate 6-2 of base 6 bottom surfaces that base 6 peripheries are provided with, and coaming plate 6-2 is the encirclement to fluid sealant during for encapsulating.On base 6, also have the multiple cavity 6-3 that form after being connected by coaming plate 6-2, the position of cavity 6-3, without encapsulating, has reduced encapsulating amount, has saved cost, and cavity 6-3 can make again heat radiation faster simultaneously, kills two birds with one stone.
Again as shown in Figure 4, the edge of terminal 4 has the flange 4-3 perpendicular to terminal 4 bottom surfaces, and during installation, the flange 4-3 of terminal 4 and the coaming plate 6-2 of base 6 contact, and can increase the area of dissipation after encapsulating.
In addition, 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 multiple ventilation hole 1-2s corresponding with cavity 6-3 position on base 6, can form the inside and outside cross-ventilation of box body, play 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 (5)
1. an encapsulating type 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); In described base (6), in base plate (5) top, fill and have fluid sealant;
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 (5-2), and described through hole (5-2) bottom is sealed by pasting boards;
It is bending along base plate (5) shape and perpendicular to the coaming plate (6-2) of base (6) bottom surface that described base (6) periphery is provided with; On described base (6), there are the multiple cavitys (6-3) that surrounded by coaming plate (6-2); The edge of described terminal (4) has the flange (4-3) perpendicular to terminal (4) bottom surface, and the flange (4-3) of described terminal (4) contacts with the coaming plate (6-2) of base (6); Described upper cover (1) end face has projection (1-1) upwards, and the end face of described upper cover (1) and side have the multiple ventilation holes (1-2) corresponding with cavity (6-3) position on base (6).
2. encapsulating type photovoltaic junction box according to claim 1, it is characterized in that: the pin of described diode (3) is welded on adjacent two terminals (4), it is upper that described terminal (4) is installed to base plate (5), and described base plate (5) is installed on base (6).
3. encapsulating type photovoltaic junction box according to claim 1, is characterized in that: the one side of described base plate (5) is the installed surface of terminal (4), comprises multiple installation units side by side on it, on each installation unit, can install for a terminal (4); The both sides of each installation unit have respectively the fixture block pair being comprised of two fixture blocks (5-1), between right two fixture blocks (5-1) of each fixture block, form gap; On described terminal (4), have clamp (4-2), insert respectively in the right gap of correspondence position fixture block at the two ends of described clamp (4-2); In described base (6), with fixture block, corresponding position is provided with to draw-in groove (6-4), the size when size of described draw-in groove (6-4) is less than fixture block to relaxation state, right two fixture blocks (5-1) of described fixture block are connected among the draw-in groove (6-4) of correspondence position and inwardly and shrink, and clamp the clamp (4-2) on described terminal (4).
4. encapsulating type photovoltaic junction box according to claim 1, is characterized in that: the edge of described base (6) is provided with boss (6-5) having the gap that Gong prizes between described boss (6-5) and strap clamp (2).
5. encapsulating type photovoltaic junction box according to claim 1, is characterized in that: on described each terminal (4), there is conflux (4-1) with holes that for convergent belt, pass, and for the solder bath (4-3) of the welding that confluxes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727640.3U CN203590147U (en) | 2013-11-16 | 2013-11-16 | Glue pouring photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727640.3U CN203590147U (en) | 2013-11-16 | 2013-11-16 | Glue pouring photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590147U true CN203590147U (en) | 2014-05-07 |
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ID=50587994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727640.3U Withdrawn - After Issue CN203590147U (en) | 2013-11-16 | 2013-11-16 | Glue pouring photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203590147U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701408A (en) * | 2013-11-16 | 2014-04-02 | 浙江鑫辉光伏科技有限公司 | Potted photovoltaic junction box |
| CN104467657A (en) * | 2014-10-24 | 2015-03-25 | 苏州快可光伏电子股份有限公司 | Combined photovoltaic module wiring box |
| CN104485884A (en) * | 2014-10-24 | 2015-04-01 | 苏州快可光伏电子股份有限公司 | Photovoltaic assembly junction box convenient to install and good in heat radiation performance |
| EP3136592A1 (en) * | 2015-08-26 | 2017-03-01 | Tyco Electronics (Shanghai) Co. Ltd. | Photovoltaic junction box |
| CN114221144A (en) * | 2021-12-13 | 2022-03-22 | 江苏晖朗电子科技股份有限公司 | Photovoltaic junction box cable protection device |
| CN116073759A (en) * | 2021-11-01 | 2023-05-05 | 浙江鑫辉光伏科技有限公司 | High-current junction box capable of improving heat dissipation capacity |
-
2013
- 2013-11-16 CN CN201320727640.3U patent/CN203590147U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701408A (en) * | 2013-11-16 | 2014-04-02 | 浙江鑫辉光伏科技有限公司 | Potted photovoltaic junction box |
| CN104467657A (en) * | 2014-10-24 | 2015-03-25 | 苏州快可光伏电子股份有限公司 | Combined photovoltaic module wiring box |
| CN104485884A (en) * | 2014-10-24 | 2015-04-01 | 苏州快可光伏电子股份有限公司 | Photovoltaic assembly junction box convenient to install and good in heat radiation performance |
| EP3136592A1 (en) * | 2015-08-26 | 2017-03-01 | Tyco Electronics (Shanghai) Co. Ltd. | Photovoltaic junction box |
| CN116073759A (en) * | 2021-11-01 | 2023-05-05 | 浙江鑫辉光伏科技有限公司 | High-current junction box capable of improving heat dissipation capacity |
| CN114221144A (en) * | 2021-12-13 | 2022-03-22 | 江苏晖朗电子科技股份有限公司 | Photovoltaic junction box cable protection device |
| CN114221144B (en) * | 2021-12-13 | 2023-10-27 | 江苏晖朗电子科技股份有限公司 | Photovoltaic junction box cable protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |