CN102290468B - Junction box for solar cell - Google Patents
Junction box for solar cell Download PDFInfo
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- CN102290468B CN102290468B CN2011101630851A CN201110163085A CN102290468B CN 102290468 B CN102290468 B CN 102290468B CN 2011101630851 A CN2011101630851 A CN 2011101630851A CN 201110163085 A CN201110163085 A CN 201110163085A CN 102290468 B CN102290468 B CN 102290468B
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- hole
- flexure strip
- accommodation aperture
- box body
- connecting sheet
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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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- Photovoltaic Devices (AREA)
Abstract
The invention discloses a junction box for a solar cell. The junction box comprises a box body and a busbar connection device. The busbar connection device consists of a connecting sheet and an elastic piece, wherein the longitudinal section of the connecting sheet is '7'-shaped, and the head part of the connecting sheet is downwards extended into an accommodation cavity at the bottom of the box body; a first through hole and a second through hole are formed above the accommodation cavity; the elastic piece is 'Omega'-shaped, and one end of the elastic piece is provided with a third through hole; the head part of the connecting sheet is extended into a cavity formed by the 'Omega' shape of the elastic piece, and is positioned in the accommodation cavity at the bottom of the box body together with the cavity formed by the 'Omega' shape; the second and third through holes are at least partially overlapped; and the bottom of the accommodation cavity also has a supporting end. The junction box for the solar cell only has two parts, and the two parts are in splicing fit with each other, highly interchangeable and simple and convenient to maintain.
Description
Technical field
The present invention relates to a kind of solar battery connecting box, including box body and busbar attachment means.
Background technology
Solar cell is increasingly widely applied because of environmental protection.The electric current that usual solar cell is produced is the terminal box by busbar, then by being connected with busbar, is transferred to follow-up use electric line, and busbar is generally connected with terminal box by the way of being fixedly connected at present.One tie point is occurred using the mode of being fixedly connected, the contact resistance that tie point is present can consume the generated output of battery, and due to the characteristics of solar power generation has low voltage and high current, easily being overheated at tie point, line security can be threatened.In addition, terminal box is fixedly connected with busbar, when when busbar or terminal box, any one goes wrong, both of which must just be changed.Therefore, how busbar and the contact resistance of terminal box junction to be reduced, while maintenance is simple and convenient, as the technical problem faced at present.
The content of the invention
It is an object of the invention to provide a kind of solar battery connecting box, busbar and terminal box are easy to connect in the terminal box, and operating efficiency is improved.
For this technical scheme is that such, solar battery connecting box, including box body and busbar attachment means, busbar attachment means are made up of a connecting piece and a flexure strip, the longitudinal section of described connection sheet is " 7 " shape, its head is extended downwardly into the accommodation aperture of box body bottom, and place has first through hole and the second through hole above accommodation aperture；Described flexure strip is " Ω " shape, and its one end has a third through-hole；Connection sheet head is stretched into the inner chamber that " Ω " of flexure strip is formed, the accommodation aperture for being collectively disposed at box body bottom；Described third through-hole and the second through hole is at least part of overlaps each other；There is a support end accommodation aperture bottom.
Further improved as of the invention, one end of the remote third through-hole of the flexure strip is connected with box body.
Further improved as of the invention, the support end of the accommodation aperture bottom is that the support end of a projection or the accommodation aperture bottom is a depression.
Further improved as of the invention, one end of the remote third through-hole of the flexure strip carries an outside crotch, hooks the antetheca of accommodation aperture.In addition it is also possible to make the screens hole of one end band one of the remote third through-hole of the flexure strip, a part for accommodation aperture antetheca passes through the screens hole, so that both are connected.
After the present invention is installed, between the antetheca insertion flexure strip two ends of " 7 " shape of connection sheet, the one end of flexure strip with third through-hole is adjacent to connection sheet inwall, under the elastic reaction of flexure strip, and a line of its " Ω " shape will be pressed on the antetheca of connection sheet head；Because the second through hole and third through-hole partly overlap, therefore screwdriver or similar instrument can be stretched into connection sheet head by two holes, and because a support end is arranged at accommodation aperture bottom, therefore can slightly prize flexure strip as fulcrum.Thus, space is will appear between the side of foregoing flexure strip and the head antetheca of connection sheet, busbar can be stretched into this space by first through hole；When flexure strip return, i.e., busbar is pressed on connection sheet head antetheca.Certainly, the afterbody of connection sheet accesses power transmission network by diode, junction block etc..
The other end of flexure strip hooks the antetheca of accommodation aperture, can be further assured that flexure strip has enough thrusts and will not shifted.
In the design of busbar attachment means, need most consideration is the reliability and convenience of connection, such as with welding or mode connects for screw, though can ensure bonding strength, operation is too bothered；If general contact connection, reliability is inadequate.The present invention compresses to realize electrical connection using flexure strip, while make use of lever principle again, therefore flexure strip can be set to sizable elastic strength, to meet the reliability of connection；On the other hand, operation of the invention is also very simple.
The present invention only has two main parts sizes, and grafting each other coordinates, with good interchangeability, safeguards also very simple and convenient.
Brief description of the drawings
The present invention will be described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is connection sheet diagrammatic cross-section.
Fig. 2 is connection sheet right view.
Fig. 3 is connection sheet left view.
Fig. 4 is flexure strip diagrammatic cross-section.
Fig. 5 is flexure strip right view.
Fig. 6 is the schematic diagram when flexure strip of embodiment 1 and connection sheet are positioned over box body accommodation aperture.
Fig. 7 is the schematic diagram when busbar of embodiment 1 is inserted.
Fig. 8 is the schematic diagram after the busbar installation of embodiment 1.
Fig. 9 is the schematic diagram when flexure strip of embodiment 2 and connection sheet are positioned over box body accommodation aperture.
Figure 10 is the schematic diagram when busbar of embodiment 2 is inserted.
Figure 11 is the schematic diagram after the busbar installation of embodiment 2.
Embodiment
Embodiment 1
Referring to Fig. 1 and Fig. 2 and Fig. 3, the head of metal connecting sheet 3 is provided with the through hole 2 of first through hole 1 and second.Metal connecting sheet 3 includes head antetheca 14, tail end 16.
Referring to Fig. 4 and Fig. 5, the short end of flexure strip 5 carries crotch 13, and long end 4 carries third through-hole 6.
Referring to Fig. 6 and Fig. 7, the head antetheca 14 of metal connecting sheet 3 inserts the two ends of flexure strip 5, until metal connecting sheet 3 can not be continued into, the nose circle of flexure strip 5 is contradicted onto metal connecting sheet 3, at this moment the long end 4 of flexure strip 5 is pressed on the head antetheca 14 of metal connecting sheet 3, as can be seen from Figure, crotch 13 on flexure strip 5 has caught on the antetheca of accommodation aperture, and the third through-hole 6 of flexure strip 5 is located at the upper end of the second through hole 2 of metal connecting sheet 3 with the lap of the second through hole 2 of metal connecting sheet 3, so when being exerted oneself downwards through the second through hole 2 and third through-hole 6 using screwdriver 9, still flexure strip 5 does not produce global displacement to the long end stress of flexure strip 5, metal connecting sheet 3 is not forced.
The head of metal connecting sheet 3 is placed into after accommodation aperture 12, the nose circle of flexure strip 5 is close to accommodation aperture bottom 11, and the tail end 16 of metal connecting sheet 3 abuts box body 7, and the stake-fastening of box body 7 is connected.
The nose circle of flexure strip 5 can not be close to accommodation aperture bottom 11, can realize technical scheme.
Referring to Fig. 7 and Fig. 8, before busbar 8 is inserted, first the second through hole 2 of metal connecting sheet 3 and the third through-hole 6 of flexure strip 5 are passed sequentially through with screwdriver 9, arrive on the projection 10 of accommodation aperture bottom 11, then screwdriver 9 is moved in the direction of arrow B, at this moment the long end stress of flexure strip 5 is descending, screwdriver 9 will not touch metal connecting sheet 3 after moving downwards, therefore only flexure strip 5 is pulled down, at this moment metal connecting sheet 3 is not moved, the short end of flexure strip 5 does not produce displacement, there is space in the head antetheca 14 of flexure strip 5 and metal connecting sheet 3, busbar 8 passes through the first through hole 1 on metal connecting sheet 3, insert in the direction of arrow A in this space.Then screwdriver 9 is unclamped, screwdriver 9 is exited from accommodation aperture 12 by arrow C directions, at this moment resilience, occurs in the long end no longer stress of flexure strip 5, so as to clamp busbar 8.
Embodiment 2
Referring to Fig. 9,10,11, as different from Example 1, the support end of screwdriver 9 has changed depression 15 into, relative to embodiment 1, and screwdriver 9 can be allowed to stretch into longer distance when mounted.
Claims (5)
1. solar battery connecting box, including box body and busbar attachment means, busbar attachment means are made up of a connecting piece and a flexure strip, it is characterised in that：The longitudinal section of described connection sheet is " 7 " shape, and its head is extended downwardly into the accommodation aperture of box body bottom, and place has first through hole and the second through hole above accommodation aperture；Described flexure strip is " Ω " shape, and its one end has a third through-hole；Connection sheet head is stretched into the inner chamber that " Ω " of flexure strip is formed, the accommodation aperture for being collectively disposed at box body bottom；Described third through-hole and the second through hole is at least part of overlaps each other, the longitudinal size of second through hole is more than the longitudinal size of the third through-hole；There is a support end accommodation aperture bottom；One end of the remote third through-hole of the flexure strip is connected with box body.
2. solar battery connecting box as claimed in claim 1, it is characterised in that：The support end of the accommodation aperture bottom is a projection, and the head of connection sheet is stretched into by first through hole.
3. solar battery connecting box as claimed in claim 1, it is characterised in that：The support end of the accommodation aperture bottom is a depression.
4. solar battery connecting box as claimed in claim 1, it is characterised in that：One end of the remote third through-hole of the flexure strip carries an outside crotch, hooks the antetheca of accommodation aperture.
5. solar battery connecting box as claimed in claim 1, it is characterised in that：One end of the remote third through-hole of the flexure strip carries a screens hole, and a part for accommodation aperture antetheca passes through the screens hole, so that both are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101630851A CN102290468B (en) | 2011-06-17 | 2011-06-17 | Junction box for solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101630851A CN102290468B (en) | 2011-06-17 | 2011-06-17 | Junction box for solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102290468A CN102290468A (en) | 2011-12-21 |
| CN102290468B true CN102290468B (en) | 2013-06-12 |
Family
ID=45336710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101630851A Active CN102290468B (en) | 2011-06-17 | 2011-06-17 | Junction box for solar cell |
Country Status (1)
| Country | Link |
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| CN (1) | CN102290468B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7013496B2 (en) * | 2020-01-07 | 2022-01-31 | 矢崎総業株式会社 | Electrical junction box and wire harness |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610188A (en) * | 2003-10-16 | 2005-04-27 | 威德米勒界面有限公司及两合公司 | Binding clip mounted on one element of substrate |
| TWM351444U (en) * | 2008-10-07 | 2009-02-21 | Tapollop Technology Co Ltd | Solar photovoltaic junction box and connection device thereof |
| ES2347514A1 (en) * | 2010-03-11 | 2010-10-29 | Siliken Modules, S.L.U. | Box of electrical connections (Machine-translation by Google Translate, not legally binding) |
| CN101958481A (en) * | 2010-09-07 | 2011-01-26 | 苏州快可光伏电子有限公司 | Connection terminal for photovoltaic terminal box |
| CN202076963U (en) * | 2011-06-17 | 2011-12-14 | 人和光伏科技有限公司 | Solar battery connecting box |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008010026A1 (en) * | 2008-02-20 | 2009-08-27 | Kostal Industrie Elektrik Gmbh | Electrical connection and connection box for a solar cell module |
-
2011
- 2011-06-17 CN CN2011101630851A patent/CN102290468B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610188A (en) * | 2003-10-16 | 2005-04-27 | 威德米勒界面有限公司及两合公司 | Binding clip mounted on one element of substrate |
| TWM351444U (en) * | 2008-10-07 | 2009-02-21 | Tapollop Technology Co Ltd | Solar photovoltaic junction box and connection device thereof |
| ES2347514A1 (en) * | 2010-03-11 | 2010-10-29 | Siliken Modules, S.L.U. | Box of electrical connections (Machine-translation by Google Translate, not legally binding) |
| CN101958481A (en) * | 2010-09-07 | 2011-01-26 | 苏州快可光伏电子有限公司 | Connection terminal for photovoltaic terminal box |
| CN202076963U (en) * | 2011-06-17 | 2011-12-14 | 人和光伏科技有限公司 | Solar battery connecting box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102290468A (en) | 2011-12-21 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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. |