CN202616266U - Novel solar photovoltaic connecting box - Google Patents

Novel solar photovoltaic connecting box Download PDF

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Publication number
CN202616266U
CN202616266U CN2012202781539U CN201220278153U CN202616266U CN 202616266 U CN202616266 U CN 202616266U CN 2012202781539 U CN2012202781539 U CN 2012202781539U CN 201220278153 U CN201220278153 U CN 201220278153U CN 202616266 U CN202616266 U CN 202616266U
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CN
China
Prior art keywords
box
lid
glue
frame
box bottom
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 - Fee Related
Application number
CN2012202781539U
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Chinese (zh)
Inventor
徐艮根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO CHUANGYUAN PHOTOVOLTAIC TECHNOLOGY Co Ltd
Original Assignee
NINGBO CHUANGYUAN PHOTOVOLTAIC TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO CHUANGYUAN PHOTOVOLTAIC TECHNOLOGY Co Ltd filed Critical NINGBO CHUANGYUAN PHOTOVOLTAIC TECHNOLOGY Co Ltd
Priority to CN2012202781539U priority Critical patent/CN202616266U/en
Application granted granted Critical
Publication of CN202616266U publication Critical patent/CN202616266U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Photovoltaic Devices (AREA)

Abstract

The utility model relates to a novel solar photovoltaic connecting box which comprises a box bottom and a box cover covering on the box bottom. A photovoltaic assembly is arranged on the box bottom, the box cover comprises a surrounding frame which is surrounded into a closed ring, and edges used for pasting of glue are arranged on the surrounding frame. A hollow end of an empty shape is arranged on the upper end of the surrounding frame, a containing groove with an opening facing downwards is arranged on the lower end of the surrounding frame, and a containing cavity is formed by the containing groove and the box bottom. One end of the box bottom clamping with a bus bar is a clamping end, and one end of the box bottom connected with a cable is a cable end. The clamping end stretches out from the containing groove, a second box cover covers on the hollow end, and an injection hole is arranged in the box bottom and used to be communicated with the outside and the inside of the containing cavity. The injection hole can be used for glue filling, the connecting box after the glue is filled is beneficial for heat dissipation of a bypass diode, power of the connecting box and current capable of flowing are increased, in addition, the novel solar photovoltaic connecting box is reasonable in structure and glue-filling amount. Besides, safety of the connection box is improved greatly by means of a separating wall.

Description

The solar energy photovoltaic terminal box
(1) technical field
The utility model 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 utility model provides a kind of photovoltaic junction box that can carry out encapsulating voluntarily and improve heat dispersion.
The technical scheme that the utility model 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.
The beneficial effect of the utility model is: the utility model 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 the blast structural representation of the utility model.
Fig. 2 is the structural representation of the utility model lid.
(5) embodiment
Below in conjunction with accompanying drawing and embodiment the utility model 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.
CN2012202781539U 2012-06-04 2012-06-04 Novel solar photovoltaic connecting box Expired - Fee Related CN202616266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012202781539U CN202616266U (en) 2012-06-04 2012-06-04 Novel solar photovoltaic connecting box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012202781539U CN202616266U (en) 2012-06-04 2012-06-04 Novel solar photovoltaic connecting box

Publications (1)

Publication Number Publication Date
CN202616266U true CN202616266U (en) 2012-12-19

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CN2012202781539U Expired - Fee Related CN202616266U (en) 2012-06-04 2012-06-04 Novel solar photovoltaic connecting box

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CN (1) CN202616266U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694045A (en) * 2012-06-04 2012-09-26 宁波市创源光伏科技有限公司 Novel solar photovoltaic junction box
CN103701408A (en) * 2013-11-16 2014-04-02 浙江鑫辉光伏科技有限公司 Potted photovoltaic junction box
CN103701406A (en) * 2013-11-16 2014-04-02 浙江鑫辉光伏科技有限公司 Economic type photovoltaic junction box

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102694045A (en) * 2012-06-04 2012-09-26 宁波市创源光伏科技有限公司 Novel solar photovoltaic junction box
CN103701408A (en) * 2013-11-16 2014-04-02 浙江鑫辉光伏科技有限公司 Potted photovoltaic junction box
CN103701406A (en) * 2013-11-16 2014-04-02 浙江鑫辉光伏科技有限公司 Economic type photovoltaic junction box
CN103701408B (en) * 2013-11-16 2015-09-09 浙江鑫辉光伏科技有限公司 Encapsulating type photovoltaic junction box
CN103701406B (en) * 2013-11-16 2016-04-13 浙江鑫辉光伏科技有限公司 Photovoltaic junction box

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121219

Termination date: 20150604

EXPY Termination of patent right or utility model