CN103000724B - A kind of photovoltaic cell protection module - Google Patents
A kind of photovoltaic cell protection module Download PDFInfo
- Publication number
- CN103000724B CN103000724B CN201210340682.1A CN201210340682A CN103000724B CN 103000724 B CN103000724 B CN 103000724B CN 201210340682 A CN201210340682 A CN 201210340682A CN 103000724 B CN103000724 B CN 103000724B
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- injection moulding
- box
- lower receiving
- electrode slice
- bridging piece
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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 present invention relates to a kind of photovoltaic cell protection module, it is characterized in that: the part that a, initial extraction electrode sheet s are positioned at injection moulding box (1) is provided with bridging piece (22), it is vertical with electrode slice s and stretch out to side in box; The part that the extraction electrode sheet e of b, end is positioned at injection moulding box (1) is provided with lower receiving sheet (21), and it is vertical with electrode slice e and stretch out to side in box; The part that c, middle electrode slice m are positioned at injection moulding box (1) is provided with bridging piece (22) and lower receiving sheet (21) simultaneously; Be connected between adjacent upper bridging piece (22) and lower receiving sheet (21) in d, injection moulding box (1) a secondary tube core (5) respectively.Beneficial effect of the present invention eliminates the current density rendezvous problem that bonding wire causes, and improves current carrying capacity; By design with the metal framework of bridging piece, employing be conjuncted bridging, with bending technique, avoid welding of bridging and metal framework dexterously, weld interface only has two, and reliability significantly improves.
Description
Technical field
The present invention relates to photovoltaic cell, especially a kind of photovoltaic cell protection module.
Background technology
Connecting box (protection module) internal bypass diode for photovoltaic industry on Vehicles Collected from Market is to prevent photovoltaic cell from wrecking due to hot spot effect, and bypass diode is the core component in connecting box.When there is hot spot, electric current is flow through by the bypass diode of connecting box, will effectively avoid the generation of hot spot, thus maintains the normal work of photovoltaic system, and bypass diode is the required part of photovoltaic system.The bypass diode of current conventional connecting box adopts some product structures and the standard of traditional semiconductor device, separation welding diode is adopted to form, the connection of diode adopts the mode of wire bonds mostly, bonding wire diameter is general all between 0.4mm ~ 0.6mm, and the bypass diode electric current of connecting box reaches 15A, therefore, the current density on the bonding wire of the bypass diode of conventional connecting box is excessive, thus cause diode internal temperature too high, there is serious reliability hidden danger.
In photovoltaic cell connecting box production process, solving bypass diode wire bonds current density excessive is core technology, is also maximum technical barrier.By inquiry correlative theses and patent, major part patent document discloses the structural design part of connecting box, and main purpose is to solve diode protection module operationally heat dissipation problem, different from this patent.The Chinese patent 200720041754.7 solar panel fly-wheel diode module of Suzhou Gu De company, disclose the method adopting modularized encapsulation bypass diode, but it adopts separation bridging, weld interface reaches three, need diode bare chip, bridging and metal framework to grip in welding process, operation easier is very large, efficiency is low, cost is high.
Summary of the invention
Object of the present invention is exactly adopt separation bridging to solve existing modularized encapsulation bypass diode, and weld interface is many, very large, the inefficient problem of operation easier, a kind of photovoltaic cell protection module provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of photovoltaic cell protection module, comprises injection moulding box and is encapsulated in one group of diode chip in injection moulding box, and it passes through one group of corresponding electrode slice extraction, it is characterized in that:
The part that starting electrode sheet s in a, described one group of electrode slice is positioned at injection moulding box is provided with bridging piece, and upper bridging piece is vertical with starting electrode sheet s and stretch out to side in box;
The part that end electrodes sheet e in b, described one group of electrode slice is positioned at injection moulding box is provided with lower receiving sheet, and lower receiving sheet is vertical with electrode slice e and stretch out to side in box;
The part that intermediate electrode film m in c, described one group of electrode slice is positioned at injection moulding box is provided with bridging piece and lower receiving sheet simultaneously, and upper bridging piece is vertical with electrode slice m with lower receiving sheet and stretch out respectively to both sides in box;
Be connected between upper bridging piece adjacent in d, injection moulding box and lower receiving sheet a diode chip respectively.
On the basis of technique scheme, following technical scheme perfect further can be increased:
The electrode slice m of described centre at least arranges one; Described each lower receiving sheet is provided with the placed indentation of diode chip.
Beneficial effect of the present invention eliminates the current density rendezvous problem that bonding wire causes, and improves current carrying capacity; By design with the metal framework of bridging piece, employing be conjuncted bridging, with bending technique, avoid welding of bridging and metal framework dexterously, weld interface only has two, and reliability significantly improves; After this bridging piece bending, self-assembling formation, to the clamping of the naked subsides chip of diode, greatly reduces operation and welding difficulty, improves the working (machining) efficiency of connecting box diode (led) module simultaneously.
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing illustrates:
Fig. 1 is front view of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is the metal electrode film plane graph in the present invention.
Embodiment
As shown in Figure 1, a kind of photovoltaic cell protection module provided by the invention, comprises injection moulding box 1 and is encapsulated in one group of diode chip 5 in injection moulding box, it is characterized in that:
The part that in a, described one group of electrode slice, starting electrode sheet s is positioned at injection moulding box 1 is provided with bridging piece 22, and upper bridging piece 22 is vertical with electrode slice s and stretch out to side in box;
The part that in b, described one group of electrode slice, end electrodes sheet e is positioned at injection moulding box 1 is provided with lower receiving sheet 21, and lower receiving sheet 21 is vertical with electrode slice e and stretch out to side in box;
The part that two, the centre electrode slice m of c, described one group of electrode slice is positioned at injection moulding box 1 is provided with bridging piece 22 and lower receiving sheet 21 simultaneously, and upper bridging piece 22 is vertical with electrode slice m with lower receiving sheet 21 and stretch out respectively to both sides in box;
Be connected between upper bridging piece 22 adjacent in d, injection moulding box 1 and lower receiving sheet 21 a secondary tube core 5 respectively
Described each lower receiving sheet 21 is provided with the placed indentation 23 of diode chip 5.
Manufacturing process of the present invention;
As shown in Figure 3, design the sheet metal framework with conducting strip, sheet metal framework comprises housing 7, and housing 7 two ends are respectively equipped with:
The electrode slice s of similar n shape, namely the horizontal component that is provided with of its n shape goes up bridging piece 22;
The electrode slice e of inverted L-shaped, the level of L shape is lower receiving sheet 21, is wherein suppressed with placed indentation 23;
Be respectively equipped with in the middle part of housing 7:
Two electrode slice m, each electrode slice m are the combined shaped of similar n shape and inverted L-shaped, and namely top is respectively equipped with the lower receiving sheet 21 that namely horizontal component goes up bridging piece 22 and level.
Described electrode slice is after Dies ' Blanking, setting arranged in parallel in framework 7, and the company's of dependence muscle 6 and electrode slice are connected with framework.
The indented area of lower receiving sheet will be attached to after diode chip 5 upper/lower electrode precoating soldering paste or conducting resinl during photovoltaic cell protection module assembling; use simple frock that 180 ° of bendings are carried out in upper bridging piece 22 and hold level; make the electrode of bridging piece 22 to diode chip 5 forms diode bridging; by the technique of Reflow Soldering or conducting resinl bonding, diode chip 5, upper bridging piece 22 and lower receiving sheet 21 are fixed together, then become diode protection module by shaping injection moulding aft-loaded airfoil.
Claims (3)
1. a photovoltaic cell protection module, comprises injection moulding box (1) and is encapsulated in one group of diode chip for backlight unit (5) in injection moulding box, and it passes through one group of corresponding electrode slice extraction, it is characterized in that:
The part that starting electrode sheet s in a, described one group of electrode slice is positioned at injection moulding box (1) is provided with bridging piece (22), and upper bridging piece (22) is vertical with starting electrode sheet s and stretch out to side in box;
The part that end electrodes sheet e in b, described one group of electrode slice is positioned at injection moulding box (1) is provided with lower receiving sheet (21), and lower receiving sheet (21) is vertical with end electrodes sheet e and stretch out to side in box;
The part that intermediate electrode film m in c, described one group of electrode slice is positioned at injection moulding box (1) is provided with bridging piece (22) and lower receiving sheet (21) simultaneously, and upper bridging piece (22) is vertical with electrode slice m with lower receiving sheet (21) and stretch out respectively to both sides in box;
Be connected between adjacent upper bridging piece (22) and lower receiving sheet (21) in d, injection moulding box (1) diode chip for backlight unit (5) respectively.
2. according to a kind of photovoltaic cell protection module described in claim 1, it is characterized in that: the electrode slice m of described centre at least arranges one.
3. according to a kind of photovoltaic cell protection module described in claim 1, it is characterized in that: described each lower receiving sheet (21) is provided with the placed indentation (23) of diode chip for backlight unit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210340682.1A CN103000724B (en) | 2012-09-15 | 2012-09-15 | A kind of photovoltaic cell protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210340682.1A CN103000724B (en) | 2012-09-15 | 2012-09-15 | A kind of photovoltaic cell protection module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103000724A CN103000724A (en) | 2013-03-27 |
| CN103000724B true CN103000724B (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210340682.1A Active CN103000724B (en) | 2012-09-15 | 2012-09-15 | A kind of photovoltaic cell protection module |
Country Status (1)
| Country | Link |
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| CN (1) | CN103000724B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296115A (en) * | 2013-05-25 | 2013-09-11 | 吴军红 | Metal rack for packaging photovoltaic cell protection module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291036B1 (en) * | 2006-11-08 | 2007-11-06 | Tyco Electronics Corporation | Photovoltaic connection system |
| CN201122596Y (en) * | 2007-11-28 | 2008-09-24 | 苏州固锝电子股份有限公司 | Afterflow diode module of solar cell panel |
| CN101300684A (en) * | 2005-11-01 | 2008-11-05 | 住友电装株式会社 | Terminal box for solar cell module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002057361A (en) * | 2000-08-11 | 2002-02-22 | Sekisui Chem Co Ltd | Relay box for use in construction of solar power generation system, and construction method using the same |
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2012
- 2012-09-15 CN CN201210340682.1A patent/CN103000724B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300684A (en) * | 2005-11-01 | 2008-11-05 | 住友电装株式会社 | Terminal box for solar cell module |
| US7291036B1 (en) * | 2006-11-08 | 2007-11-06 | Tyco Electronics Corporation | Photovoltaic connection system |
| CN201122596Y (en) * | 2007-11-28 | 2008-09-24 | 苏州固锝电子股份有限公司 | Afterflow diode module of solar cell panel |
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| Publication number | Publication date |
|---|---|
| CN103000724A (en) | 2013-03-27 |
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