CN102694045A - Novel solar photovoltaic junction box - Google Patents
Novel solar photovoltaic junction box Download PDFInfo
- Publication number
- CN102694045A CN102694045A CN2012101945324A CN201210194532A CN102694045A CN 102694045 A CN102694045 A CN 102694045A CN 2012101945324 A CN2012101945324 A CN 2012101945324A CN 201210194532 A CN201210194532 A CN 201210194532A CN 102694045 A CN102694045 A CN 102694045A
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- China
- Prior art keywords
- box
- lid
- glue
- frame
- box base
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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 invention relates to a novel solar photovoltaic junction box which comprises a box base and a box cover covered on the box base, wherein the box base is provided with a photovoltaic assembly; the box cover comprises an enclosure frame which is enclosed into a closed loop; the enclosure frame is provided with a skirt edge for smearing glue; the upper end of the enclosure frame is hollow and is a hollow end; the lower end of the enclosure frame is provided with a containing groove with a downward opening; the containing groove and the box base form a containing cavity together; the box base is clamped with one end of a bus bar so as to form a clamping end; the box base is connected with one end of a cable so as to form a cable end; the clamping end extends out of the containing groove; a second box cover is covered on the upper end of the hollow end; the box base is provided with an injection hole; and the injection hole is communicated with the outer part and the inner part of the containing cavity. According to the invention, glue can be poured through the injection hole, the junction box after glue pouring is beneficial to the heat radiation of a bypass diode, the power of the junction box and the circulated current are increased, and also the structure arrangement is reasonable, and the glue pouring amount is reasonable; and additionally, an insulation wall also greatly increases the safety of the junction box.
Description
(1) technical field
The present invention relates to a kind of photovoltaic terminal box.
(2) background technology
The photovoltaic terminal box when work, can produce bigger heat in the box; Because the restriction of heat dispersion also limits the maximum current that it can bear simultaneously, in the prior art; Be empty in the box body, promptly photovoltaic module is through the air heat radiation, and radiating effect is relatively poor like this.In addition, terminal box of the prior art, volume is bigger at the bottom of the box, during installation, stamps glue in the bottom surface at the bottom of the box and is bonded on the photovoltaic panel, so relatively wastes resource.
(3) summary of the invention
In order to overcome the above-mentioned deficiency of prior art, the present invention provides a kind of photovoltaic junction box that can carry out encapsulating voluntarily and improve heat dispersion.
The technical scheme that the present invention solves its technical problem is:
A kind of solar energy photovoltaic terminal box comprises at the bottom of the box and the lid that covers at the bottom of the box, photovoltaic module is set at the bottom of the described box; Described lid comprises the frame that encloses that surrounds sealing ring, and the described frame that encloses is provided with and is used for the shirt rim of spreading glue, and described upper end of enclosing frame is set to the empty hollow end that forms; Described lower end of enclosing frame is provided with the storage tank that Open Side Down; Common formation containing cavity at the bottom of described storage tank and the box, an end of clamping busbar is a joint end at the bottom of the described box, an end of stube cable is a cut cable at the bottom of the box; Described joint end stretches out described storage tank; Be covered with second lid on the described hollow end, be provided with hand-hole at the bottom of the described box, described hand-hole is communicated with outside and containing cavity inside.
As preferably, the both sides of lid hollow end are provided with deck, and described second lid is buckled on the lid, and the edge of described second lid is provided with groove, in the described groove sealing ring is set, and the edge of second lid and sealing ring are entrapped in enclosing in the frame of lid.
As preferably, the both sides of lid are provided with divider wall, and the inboard of described divider wall and lid forms isolation channel.
Storage tank with lid at the bottom of the box constitutes containing cavity jointly, and the upper end of lid is set to the empty hollow end that forms, and at the bottom of the box, hand-hole is set; Then can inject glue through hand-hole, make to be covered with glue in the containing cavity, photovoltaic module is also covered by glue; Then the heat radiation of photovoltaic module is through the glue transmission, and the heat dispersion of glue is higher than the heat dispersion of air, has then increased the heat dispersion of terminal box greatly; Terminal box behind the encapsulating has excellent insulating properties and ageing-resistant performance after the curing, heat conductivility is fabulous.The conductive coefficient 0.03w/mk of relative air, this silica gel has better conductive coefficient to reach 0.4w/mk.Surpass 13 times of air, help the heat radiation of bypass diode more.Thereby the power and the negotiable electric current of terminal box of terminal box have been increased.
In addition, lid is arranged to storage tank and hollow end, reduces the encapsulating space as far as possible, like this, the encapsulating amount is less, and pours into through hand-hole.On lid, cover second lid again, avoid photovoltaic module to expose, ensure its insulation property.During installation, on the shirt rim of lid, apply glue, and stick on the photovoltaic panel, only bottom surface spreading glue at the bottom of the shirt rim spreading glue is compared with box has also reduced glue-spread.Divider wall is set on lid, and then creepage distance has increased twice and the width of divider wall of the height of divider wall, has increased creepage distance greatly; Increased fail safe, and the setting of divider wall is also comparatively simple, the inboard isolation channel that forms of divider wall and box body; The photovoltaic terminal box is when work, and inside is in the condition of high temperature, when the photovoltaic terminal box quits work; After the cooling, can form the globule, then the globule accumulates in this isolation channel; Do not influence parts such as photovoltaic module, protected photovoltaic junction box not to be damaged.
Beneficial effect of the present invention is: the present invention can pass through the hand-hole encapsulating, and then the terminal box behind the encapsulating helps the heat radiation of bypass diode, has increased the power and the negotiable electric current of terminal box, and structure is provided with rationally, and the encapsulating amount is reasonable.In addition, the setting of divider wall has also increased the fail safe of terminal box greatly.
(4) description of drawings
Fig. 1 is a blast structural representation of the present invention.
Fig. 2 is the structural representation of lid of the present invention.
(5) embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain.
Like Fig. 1, shown in 2, a kind of photovoltaic terminal box, comprise at the bottom of the box 12 with the lid 9 that covers at the bottom of the box; 12 are provided with photovoltaic module 11 at the bottom of the box; Lid comprise surround sealing ring enclose frame 2, enclose frame 2 and be provided with and be used for the shirt rim 3 of spreading glue, the upper end of enclosing frame is set to sky and is hollow end 1; The lower end of enclosing frame is provided with the storage tank 10 that Open Side Down, storage tank 10 and common formation containing cavity at the bottom of the box.An end of clamping busbar is a joint end 5 at the bottom of the box, and an end of stube cable is a cut cable 13 at the bottom of the box, and joint end stretches out described storage tank 10, is covered with second lid, 6, the second lids 6 on the hollow end joint end is enclosed in the lid.Be provided with hand-hole 14 at the bottom of the box, hand-hole 14 is communicated with outside and containing cavity inside.The both sides of lid hollow end are provided with deck 8, the second lids and are buckled on the lid, and the edge of second lid is provided with groove 7, and edge and sealing ring 4 that sealing ring 4, the second lids are set in the described groove 7 are entrapped in enclosing in the frame 2 of lid.The both sides of lid are provided with divider wall 15, and the inboard of described divider wall and lid forms isolation channel.
Storage tank with lid at the bottom of the box constitutes containing cavity jointly, and the upper end of lid is set to sky and is hollow end 1, at the bottom of the box, hand-hole 14 is set; Then can inject glue through hand-hole, make to be covered with glue in the containing cavity, photovoltaic module 11 is also covered by glue; Then the heat radiation of photovoltaic module is through the glue transmission, and the heat dispersion of glue is higher than the heat dispersion of air, has then increased the heat dispersion of terminal box greatly; Terminal box behind the encapsulating has excellent insulating properties and ageing-resistant performance after the curing, heat conductivility is fabulous.The conductive coefficient 0.03w/mk of relative air, this silica gel has better conductive coefficient to reach 0.4w/mk.Surpass 13 times of air, help the heat radiation of bypass diode more.Thereby the power and the negotiable electric current of terminal box of terminal box have been increased.
In addition, lid is provided with storage tank and hollow end, reduces the encapsulating space as far as possible, like this, the encapsulating amount is less, and pours into through hand-hole.On lid, cover second lid 6 again, avoid photovoltaic module to expose, ensure its insulation property.During installation, on the shirt rim 3 of lid, apply glue, and stick on the photovoltaic panel, only bottom surface spreading glue at the bottom of the shirt rim spreading glue is compared with box has also reduced glue-spread.Divider wall is set on lid, and then creepage distance has increased twice and the width of divider wall of the height of divider wall, has increased creepage distance greatly; Increased fail safe, and the setting of divider wall is also comparatively simple, the inboard isolation channel that forms of divider wall and box body; The photovoltaic terminal box is when work, and inside is in the condition of high temperature, when the photovoltaic terminal box quits work; After the cooling, can form the globule, then the globule accumulates in this isolation channel; Do not influence parts such as photovoltaic module, protected photovoltaic junction box not to be damaged.
Claims (3)
1. solar energy photovoltaic terminal box comprises at the bottom of the box and the lid that covers at the bottom of the box, photovoltaic module is set at the bottom of the described box; It is characterized in that: described lid comprises the frame that encloses that surrounds sealing ring, and the described frame that encloses is provided with and is used for the shirt rim of spreading glue, and described upper end of enclosing frame is set to sky and is hollow end; Described lower end of enclosing frame is provided with the storage tank that Open Side Down; Common formation containing cavity at the bottom of described storage tank and the box, an end of clamping busbar is a joint end at the bottom of the described box, an end of stube cable is a cut cable at the bottom of the box; Described joint end stretches out described storage tank; Be covered with second lid on the described hollow end, be provided with hand-hole at the bottom of the described box, described hand-hole is communicated with outside and containing cavity inside.
2. solar energy photovoltaic terminal box according to claim 1; It is characterized in that: the both sides of described lid hollow end are provided with deck; Described second lid is buckled on the lid; The edge of described second lid is provided with groove, in the described groove sealing ring is set, and the edge of described second lid and sealing ring are entrapped in enclosing in the frame of lid.
3. solar energy photovoltaic terminal box according to claim 1 and 2 is characterized in that: the both sides of described lid are provided with divider wall, and the inboard of described divider wall and lid forms isolation channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101945324A CN102694045A (en) | 2012-06-04 | 2012-06-04 | Novel solar photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101945324A CN102694045A (en) | 2012-06-04 | 2012-06-04 | Novel solar photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102694045A true CN102694045A (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101945324A Pending CN102694045A (en) | 2012-06-04 | 2012-06-04 | Novel solar photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102694045A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452349A (en) * | 2016-12-19 | 2017-02-22 | 芜湖光荣网络科技有限公司 | Battery arrangement structure in double current solar photovoltaic module |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924499A (en) * | 2010-09-10 | 2010-12-22 | 苏州快可光伏电子有限公司 | Photovoltaic junction box |
| CN201699370U (en) * | 2010-06-21 | 2011-01-05 | 杭州富贝电器有限公司 | Cover plate used in photovoltaic junction box |
| US20110108085A1 (en) * | 2008-05-09 | 2011-05-12 | Yamaichi Electronics Co., Ltd. | Junction box, uses of a junction box, and methods |
| CN201845793U (en) * | 2010-10-20 | 2011-05-25 | 王薇珲 | Junction box of solar photovoltaic modules |
| US20110147076A1 (en) * | 2009-12-22 | 2011-06-23 | Xiaoqun Chen | Solar Photovoltaic Junction Box Assembly |
| CN102110726A (en) * | 2010-11-05 | 2011-06-29 | 苏州快可光伏电子股份有限公司 | Sealed type photovoltaic junction box with rapid heat dissipation |
| CN102263148A (en) * | 2011-06-23 | 2011-11-30 | 无锡国盛精密模具有限公司 | Junction box of solar photovoltaic module |
| CN102420266A (en) * | 2011-12-06 | 2012-04-18 | 东莞市泽润电子科技有限公司 | Solar terminal box |
| CN202616266U (en) * | 2012-06-04 | 2012-12-19 | 宁波市创源光伏科技有限公司 | Novel solar photovoltaic connecting box |
-
2012
- 2012-06-04 CN CN2012101945324A patent/CN102694045A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110108085A1 (en) * | 2008-05-09 | 2011-05-12 | Yamaichi Electronics Co., Ltd. | Junction box, uses of a junction box, and methods |
| US20110147076A1 (en) * | 2009-12-22 | 2011-06-23 | Xiaoqun Chen | Solar Photovoltaic Junction Box Assembly |
| CN201699370U (en) * | 2010-06-21 | 2011-01-05 | 杭州富贝电器有限公司 | Cover plate used in photovoltaic junction box |
| CN101924499A (en) * | 2010-09-10 | 2010-12-22 | 苏州快可光伏电子有限公司 | Photovoltaic junction box |
| CN201845793U (en) * | 2010-10-20 | 2011-05-25 | 王薇珲 | Junction box of solar photovoltaic modules |
| CN102110726A (en) * | 2010-11-05 | 2011-06-29 | 苏州快可光伏电子股份有限公司 | Sealed type photovoltaic junction box with rapid heat dissipation |
| CN102263148A (en) * | 2011-06-23 | 2011-11-30 | 无锡国盛精密模具有限公司 | Junction box of solar photovoltaic module |
| CN102420266A (en) * | 2011-12-06 | 2012-04-18 | 东莞市泽润电子科技有限公司 | Solar terminal box |
| CN202616266U (en) * | 2012-06-04 | 2012-12-19 | 宁波市创源光伏科技有限公司 | Novel solar photovoltaic connecting box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452349A (en) * | 2016-12-19 | 2017-02-22 | 芜湖光荣网络科技有限公司 | Battery arrangement structure in double current solar photovoltaic module |
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Application publication date: 20120926 |