CN102412329B - Solar cell junction box - Google Patents

Solar cell junction box Download PDF

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Publication number
CN102412329B
CN102412329B CN2011103828689A CN201110382868A CN102412329B CN 102412329 B CN102412329 B CN 102412329B CN 2011103828689 A CN2011103828689 A CN 2011103828689A CN 201110382868 A CN201110382868 A CN 201110382868A CN 102412329 B CN102412329 B CN 102412329B
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China
Prior art keywords
diode
conducting bracket
jump ring
conducting
busbar
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CN2011103828689A
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CN102412329A (en
Inventor
林岳明
王冬
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Renhe Photovoltaic Technology Co Ltd
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Renhe Photovoltaic Technology Co Ltd
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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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Abstract

The invention discloses a solar cell junction box, which comprises a bus bar clamp spring, a diode clamp spring and at least two conducting brackets, wherein the cross sections of the conducting brackets are inversed-U-shaped; two side faces of a front part are provided with two symmetric holes; the middle parts of the conducting brackets are provided with accommodating cavities; the bus bar clamp spring is formed by bending an elastic sheet; at least a gap part is formed at the junction of the top surface and the side face of the back part of each conducting bracket; the diode clamp spring is formed by bending an elastic sheet and comprises an end face and a side face; the side face is provided with a convex part and a concave part; the diode clamp spring is clamped into the back part of each conducting bracket; the concave part is superposed with a part of the gap part of each conducting bracket; adjacent conducting brackets are connected with each other through a diode; a diode pin is inserted into the gap part of each conducting bracket; and the concave part of the diode clamp spring is tightly pressed against the diode pin, so that the diode pin is tightly jointed to each conducting bracket. The solar cell junction box has a simple structure, high compatibility and high maintainability, and is convenient to operate.

Description

Solar battery connecting box
Technical field
The present invention relates to the terminal box field, especially relate to a kind of solar battery connecting box.
Background technology
Solar cell obtains using more and more widely because of environmental protection.Usually the electric current that produces of solar cell is by busbar, and the terminal box by being connected with busbar again be transferred to follow-up usefulness electric line, and busbar is connected with the mode that the common employing of terminal box is fixedly connected with at present.Employing is fixedly connected with mode a tie point can occur, the generated output of the contact resistance meeting consuming cells that tie point exists, and also because solar power generation has low voltage and high current, the tie point place is overheated easily, can threaten line security.In addition, terminal box is fixedly connected with busbar, when any one goes wrong when busbar or terminal box, just both all must be changed.Therefore, how the contact resistance with busbar and terminal box junction reduces, and safeguards simultaneously simple and conveniently, becomes a technical problem that faces at present.
In addition, the general mode of directly welding that adopts of diode is fixed in the terminal box in the terminal box at present, and diode is damaged easily, it is just pretty troublesome when diode damages replacing, in order to overcome above-mentioned deficiency, Chinese utility model patent publication number CN201918382 discloses a kind of fixing device for diode of photovoltaic junction box, it is by fixing an elastic clip at terminal box base, two risers formation clamp ports are set outside elastic clip fixes diode, its weak point is: its fixedly the elastic clip of diode be to be weldingly fixed on the base, opening upwards is so that its elastic force is inadequate; Next is that structure is loaded down with trivial details.
Summary of the invention
The object of the present invention is to provide a kind of solar battery connecting box, busbar, diode and terminal box are easy to connect and firm in this terminal box, and operating efficiency improves.
For this reason, technical scheme of the present invention is such: solar battery connecting box, comprise box body, arrangement of busbars is arranged in the box body, with diode and the diode jockey of diode pin, also comprise busbar jump ring, diode jump ring and at least 2 conducting brackets, three parts before, during and after described conducting bracket divides, cross section is " ∏ " shape, front part sides has been worn symmetrical holes; Bottom of box body is with projection, and the projection inboard is with projection, and when conducting bracket was fastened on Bottom of box body, the hole of conducting bracket cooperated with this projection; The conducting bracket middle part is provided with accommodation aperture, and the two sides of close accommodation aperture rear wall are with symmetric windows; Described busbar jump ring is formed by a flexure strip bending, its longitudinal section is trapezoidal, comprise long limit and minor face, one opening is arranged on the minor face, both sides, long limit are with symmetrical extension, and described busbar jump ring places accommodation aperture, and minor face and accommodation aperture antetheca are close to, long limit and accommodation aperture rear wall are close to, and the extension on long limit cooperates with the breach of described accommodation aperture; The end face at conducting bracket rear portion and side intersection are with at least one notch part; Described diode jump ring is formed by the flexure strip bending, comprises end face and side, and described side is with jut and recess; The diode jump ring snaps in the conducting bracket rear portion, and its recess and described conducting bracket notch part are overlapped; Adjacent conducting bracket links to each other with diode, and the diode pin inserts the notch part of conducting bracket, and the recess of diode jump ring compresses the diode pin, so that described diode pin is close to conducting bracket.
Doing further to the present invention, improvement is: described conducting bracket is positioned on the shelves of Bottom of box body.
Preferred described conducting bracket rear portion is with stopping end.
Diode jump ring of the present invention is preferably formed by a flexure strip bending.
Also can form for described diode jump ring is plugged together by two flexure strip bendings.Further improve and be: described flexure strip has an opening, and opening part has a plug or jack, matches with jack or the plug of another flexure strip.
On the base of terminal box body of the present invention, each conducting bracket is corresponding two projections and shelves all, and shape matches with conducting bracket.The projection inboard is with projection, the conducting bracket front part sides is with a hole, and after conducting bracket was fastened on the base of terminal box, conducting bracket was between two projections, the projection of projection is inserted in the hole of conducting bracket front part sides, make conducting bracket can not about, move forward and backward; Simultaneously, conducting bracket is placed on the shelves of Bottom of box body, and a fixed gap is arranged at itself and box body bottom, can make things convenient for busbar to penetrate.The middle part of conducting bracket is with accommodation aperture, jagged near being with on the two sides of accommodation aperture rear wall, the long sideband of busbar jump ring has the extension, after the busbar jump ring is placed the accommodation aperture of conducting bracket, long limit and the accommodation aperture rear wall of busbar jump ring are close to, the breach on the accommodation aperture is passed in the extension on its long limit so that the busbar jump ring be difficult for before and after, move up and down, thereby can't from accommodation aperture, pitch.During use, as long as use screwdriver or similar tool to prize the busbar jump ring, make the antetheca of its minor face and accommodation aperture the space occur, busbar is stretched in this space; After Move tool makes busbar jump ring return, busbar will be pressed on the antetheca of conducting bracket accommodation aperture.
Diode jump ring of the present invention can be an end opening, formed by a flexure strip bending, there is an end of opening to compress to the centre diode jump ring, make it can be inserted into from bottom to top vertical sectional shape in the conducting bracket of " ∏ " shape, remove external force after the insertion, the resilience under elastic reaction of diode jump ring opening one end, tightly be stuck in the conducting bracket, simultaneously its not an end of opening be subject to the conducting bracket rear portion and stop stopping of end, stopped by the plane of structure of conducting bracket above the diode jump ring, the below stopped by terminal box base so that its can't from up and down and the rear portion come off; After the diode jump ring was inserted into conducting bracket, the recess of diode jump ring side just in time was positioned at the gap portions of conducting bracket, has hidden the part breach.After two diode jump rings are installed in respectively the adjacent conductive support, tool using is pushed the recess of diode jump ring open, two pins of diode are inserted respectively the notch part of above-mentioned two adjacent conductive supports, then back off tool, diode jump ring return is pressed on the diode pin on two conducting brackets, and recess shape and the diode pin shape owing to the diode jump ring is complementary simultaneously, so that the cooperation of diode jump ring and diode is tight, both are not easy to get loose.
The diode jump ring also can be to form by mutually plugging together after two flexure strip bendings, and the structure of two flexure strips of employing can be so that the production assembling be convenient.
Can also be with 2 juts and 2 corresponding recess on each side of diode jump ring, every side of conducting bracket can with two breach, be installed for two diodes arranged side by side simultaneously.
Adopt after the technique scheme, only adopt three parts, namely conducting bracket and diode jump ring and busbar jump ring just can be realized firmly connecting diode and busbar, and purpose easy to loading and unloading.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described in detail.
Fig. 1 is busbar jump ring of the present invention and conducting bracket schematic diagram.
Fig. 2 is busbar jump ring of the present invention and conductive bracket structure schematic diagram.
Cutaway view when Fig. 3 is busbar insertion of the present invention.
Fig. 4 is conducting bracket and the first diode clip spring structure schematic diagram.
Fig. 5 is conducting bracket and the second diode clip spring structure schematic diagram.
Fig. 6 is the second diode clip spring structure schematic diagram.
Embodiment
Referring to Fig. 1 and Fig. 2, with projection 99 and shelves 98, projection 99 inboards are with projection on the base of terminal box body 91, conducting bracket 2 front end two sides each with a hole 97, conducting bracket 2 middle parts are with an accommodation aperture 96, the two side band jagged 910 of accommodation aperture.The longitudinal section of busbar jump ring 93 is trapezoidal, and with an opening, overlap in the opening both sides on the minor face, and the long sideband of busbar jump ring 93 has extension 95.
After conducting bracket 2 was put into the base of terminal box body 91, the inner bulge of projection 99 was inserted in the hole 97 of conducting bracket 2, and the left and right sides of conducting bracket 2 and rear portion are placed on the shelves 98.After busbar jump ring 93 was positioned over accommodation aperture 96, the rear wall of accommodation aperture 96 was close on its long limit, was close to the antetheca of accommodation aperture 96 with the minor face of opening, and the sidewall breach 910 of accommodation apertures is inserted in extension 95.
Referring to Fig. 3, tool using separates the minor face of busbar jump ring 93 antetheca with accommodation aperture 96, inserts busbar 94, then removes instrument, so that the minor face of busbar jump ring 93 is returned to the state that the antetheca with accommodation aperture 96 presses under the elastic force effect.
Referring to Fig. 4, conducting bracket 2 is with notch part 9 and 10, and its rear portion is with stopping end 6; Diode jump ring 3 sides are with jut 7 and jut 8, and jut 7 is with a recess 71, and jut 8 is with a recess 81, and diode jump ring 3 one ends are with opening.
With diode jump ring 3 be inserted into from bottom to top conducting bracket 2 interior after, its recess 71 is positioned at breach 9 places of conducting bracket 2, recess 81 is positioned at breach 10 places of conducting bracket 2, diode 1 is with 2 pins 11, diode 12 is with 2 pins 111, with external force recess 71 is pushed open, so that pin 11 is passed the space between recess 71 and the breach 9, be fixed in the conducting bracket 2 by diode jump ring 3.In like manner, the pin 111 of diode 12 passes the space between recess 81 and the breach 10, is fixed in the conducting bracket 2 by diode jump ring 3.
Referring to Fig. 5 and Fig. 6.Diode jump ring 3 comprises flexure strip 31 and flexure strip 32, and flexure strip 31 has openend, and an end of openend has the first jack 312, and the other end has the first plug 311, respectively with flexure strip 32 on the second jack 321 and the second plug 322 plug together.
Certainly, also several diodes can be installed as required, every increase pair of diodes need to increase a conducting bracket and a jump ring, and these change all within protection scope of the present invention.

Claims (6)

1. solar battery connecting box, comprise box body, arrangement of busbars is arranged in the box body, with diode and the diode jockey of diode pin, it is characterized in that: also comprise busbar jump ring, diode jump ring and at least 2 conducting brackets, three parts before, during and after described conducting bracket divides, cross section is " ∏ " shape, and front part sides has been worn symmetrical holes; Bottom of box body is with projection, and the projection inboard is with projection, and when conducting bracket was fastened on Bottom of box body, the hole of conducting bracket cooperated with this projection; The conducting bracket middle part is provided with accommodation aperture, and the two sides of close accommodation aperture rear wall are with symmetric windows; Described busbar jump ring is formed by a flexure strip bending, its longitudinal section is trapezoidal, comprise long limit and minor face, one opening is arranged on the minor face, both sides, long limit are with symmetrical extension, and described busbar jump ring places accommodation aperture, and minor face and accommodation aperture antetheca are close to, long limit and accommodation aperture rear wall are close to, and the extension on long limit cooperates with the breach of described accommodation aperture; The end face at conducting bracket rear portion and side intersection are with at least one notch part; Described diode jump ring is formed by the flexure strip bending, comprises end face and side, and described side is with jut and recess; The diode jump ring snaps in the conducting bracket rear portion, and its recess and described conducting bracket notch part are overlapped; Adjacent conducting bracket links to each other with diode, and the diode pin inserts the notch part of conducting bracket, and the recess of diode jump ring compresses the diode pin, so that described diode pin is close to conducting bracket.
2. solar battery connecting box as claimed in claim 1, it is characterized in that: described conducting bracket is positioned on the shelves of Bottom of box body.
3. solar battery connecting box as claimed in claim 1, it is characterized in that: described conducting bracket rear portion is with stopping end.
4. solar battery connecting box as claimed in claim 1, it is characterized in that: described diode jump ring is formed by a flexure strip bending.
5. solar battery connecting box as claimed in claim 1, it is characterized in that: described diode jump ring is plugged together by two flexure strip bendings and forms.
6. solar battery connecting box as claimed in claim 5, it is characterized in that: a flexure strip of described formation diode jump ring has an opening, opening part has a plug or jack, matches with jack or the plug of another flexure strip that forms the diode jump ring.
CN2011103828689A 2011-11-28 2011-11-28 Solar cell junction box Active CN102412329B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103828689A CN102412329B (en) 2011-11-28 2011-11-28 Solar cell junction box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103828689A CN102412329B (en) 2011-11-28 2011-11-28 Solar cell junction box

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CN102412329A CN102412329A (en) 2012-04-11
CN102412329B true CN102412329B (en) 2013-04-24

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199470B (en) * 2013-03-29 2015-07-15 国家电网公司 Metering terminal box
GB2591146B (en) * 2020-01-20 2022-11-23 Hussain Ashraf Wire connection terminal apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201234097Y (en) * 2008-08-01 2009-05-06 魏承辉 Fast wiring box used solar photovoltaic component
CN101459392B (en) * 2008-12-31 2010-11-10 东莞市日新传导科技股份有限公司 Wiring box for solar photovoltaic power generation system
CN101894874A (en) * 2009-05-22 2010-11-24 承建洪 Photovoltaic junction box
CN201845793U (en) * 2010-10-20 2011-05-25 王薇珲 Junction box of solar photovoltaic modules
CN102169913A (en) * 2011-02-14 2011-08-31 苏州桑斯达光伏电子有限公司 Junction box of solar photovoltaic component

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201234097Y (en) * 2008-08-01 2009-05-06 魏承辉 Fast wiring box used solar photovoltaic component
CN101459392B (en) * 2008-12-31 2010-11-10 东莞市日新传导科技股份有限公司 Wiring box for solar photovoltaic power generation system
CN101894874A (en) * 2009-05-22 2010-11-24 承建洪 Photovoltaic junction box
CN201845793U (en) * 2010-10-20 2011-05-25 王薇珲 Junction box of solar photovoltaic modules
CN102169913A (en) * 2011-02-14 2011-08-31 苏州桑斯达光伏电子有限公司 Junction box of solar photovoltaic component

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Address after: No. 99, Jinger Road, Xinpu Town, Cixi City, Ningbo City, Zhejiang Province

Patentee after: ZHEJIANG RENHE PHOTOVOLTAIC TECHNOLOGY Co.,Ltd.

Address before: 315322, No. four, Jiang Tong Road, 5 Xin Town, Cixi, Zhejiang, Ningbo

Patentee before: Renhe Photovoltaic Technology Co.,Ltd.

CP03 Change of name, title or address