CN103000724A - Photovoltaic cell protection module - Google Patents
Photovoltaic cell protection module Download PDFInfo
- Publication number
- CN103000724A CN103000724A CN2012103406821A CN201210340682A CN103000724A CN 103000724 A CN103000724 A CN 103000724A CN 2012103406821 A CN2012103406821 A CN 2012103406821A CN 201210340682 A CN201210340682 A CN 201210340682A CN 103000724 A CN103000724 A CN 103000724A
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- Prior art keywords
- box
- electrode slice
- sheet
- photovoltaic cell
- protection module
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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 photovoltaic cell protection module. The photovoltaic cell protection module is characterized in that a, upper bridge blades (22) are arranged on the part of an initial outgoing electrode plate s, located inside an injection-molded box (1), are perpendicular to the electrode plate s and extend to one inner side of the box; b, lower adapter blades (21) are arranged on the part of a tail outgoing electrode plate e, located inside the injection-molded box (1), are perpendicular to the electrode plate e and extend to one inner side of the box; c, both the upper bridge blades (22) and the lower adapter blades (21) are arranged on the part of a middle electrode plate m, located in the injection-molded box (1); d, a diode core (5) is fitted and connected between each upper bridge blade (22) and one lower adapter blade (21) adjacent to the same inside the injection-molded box (1). The photovoltaic cell protection module has the advantages that the problem of current density gathering caused by bonding wires is eliminated, and current carrying capacity is improved; a metal frame with the bridge blades is integrally bridged and is bent, welding of the metal frame and bridging are skillfully avoided, two weld interfaces are provided only, and reliability is greatly improved.
Description
Technical field
The present invention relates to photovoltaic cell, especially a kind of photovoltaic cell protection module.
Background technology
Connecting box (protection module) the internal bypass diode that is used for photovoltaic industry on the Vehicles Collected from Market is in order to prevent photovoltaic cell owing to hot spot effect wrecks, and bypass diode is the interior core component of connecting box.In the time may hot spot occuring, electric current is flow through by the bypass diode of connecting box, will effectively avoid the generation of hot spot, thereby keeps the normal operation of photovoltaic system, and bypass diode is the essential part of photovoltaic system.The bypass diode of present conventional connecting box has adopted some product structures and the standard of traditional semiconductor device, adopt the separation welding diode to form, the mode of wire bonds is adopted in the connection of diode mostly, the bonding wire diameter is generally all between 0.4mm～0.6mm, and the bypass diode electric current of connecting box reaches 15A, and therefore, the current density on the bonding wire of the bypass diode of conventional connecting box is excessive, thereby cause that the diode internal temperature is too high, serious reliability hidden danger is arranged.
In the photovoltaic cell connecting box production process, solving bypass diode wire bonds current density excessive is core technology, also is maximum technical barrier.By inquiring about relevant paper and patent, most of patent documentation discloses the structural design part of connecting box, and main purpose is in order to solve diode protection module heat dissipation problem when working, and is different from this patent.The Chinese patent 200720041754.7 solar panel fly-wheel diode modules of the solid technetium company in Suzhou, the method that adopts the modularized encapsulation bypass diode is disclosed, but it adopts the separation bridging, nearly three of weld interfaces, need in the welding process diode bare chip, bridging and metal framework are gripped, operation easier is very large, efficient is low, cost is high.
Summary of the invention
Purpose of the present invention is exactly to adopt the separation bridging in order 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 that provides.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of photovoltaic cell protection module comprises the injection moulding box and is encapsulated in one group of interior diode chip of injection moulding box, and it is drawn by one group of corresponding electrode slice, it is characterized in that:
The part that initial electrode slice s in a, the described one group of electrode slice is positioned at the injection moulding box is provided with bridging piece, upper bridging piece vertical with initial electrode slice s and in the box side stretch out;
The part that end electrodes sheet e in b, the described one group of electrode slice is positioned at the injection moulding box is provided with down accepts sheet, lower accept sheet vertical with electrode slice e and in the box side stretch out;
The part that intermediate electrode film m in c, the described one group of electrode slice is positioned at the injection moulding box be provided with simultaneously bridging piece and under accept sheet, upper bridging piece with under accept sheet vertical with electrode slice m and respectively in the box both sides stretch out;
In the d, injection moulding box adjacent upper bridging piece and under accept the diode chip that is connected respectively between the sheet.
On the basis of technique scheme, can increase following further perfect technical scheme:
The electrode slice m of described centre arranges one at least; The location impression that sheet is provided with the diode chip is accepted in described each time.
Beneficial effect of the present invention is eliminated 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, use bending technique, avoided dexterously the welding of bridging and metal framework, weld interface only has two, reliability significantly improves; Self-assembling formation greatly reduces operation and welding difficulty to the clamping of the naked subsides chip of diode after this bridging piece bending simultaneously, improves the working (machining) efficiency of connecting box diode (led) module.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings:
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 among 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 interior diode chip 5 of injection moulding box, it is characterized in that:
The part that initial electrode slice s is positioned at injection moulding box 1 in a, the described one group of electrode slice is provided with bridging piece 22, upper bridging piece 22 vertical with electrode slice s and in the box side stretch out;
The part that end electrodes sheet e is positioned at injection moulding box 1 in b, the described one group of electrode slice is provided with down accepts sheet 21, lower accept sheet 21 vertical with electrode slice e and in the box side stretch out;
The part that two the electrode slice m in the centre of c, described one group of electrode slice are positioned at injection moulding box 1 be provided with simultaneously bridging piece 22 and under accept sheet 21, upper bridging piece 22 with under accept sheet 21 vertical with electrode slice m and respectively in the box both sides stretch out;
D, the 1 interior adjacent upper bridging piece 22 of injection moulding box and under accept the secondary tube core 5 that is connected respectively between the sheet 21
The location impression 23 that sheet 21 is provided with diode chip 5 is accepted in described each time.
Manufacturing process of the present invention;
As shown in Figure 3, design is with the sheet metal framework of conducting strip, and the sheet metal framework comprises housing 7, and housing 7 two ends are respectively equipped with:
The electrode slice s of similar n shape is one side the horizontal component that is provided with of its n shape is namely gone up bridging piece 22;
The electrode slice e of inverted L-shaped accepts sheet 21 on one side L shaped level is down, wherein is suppressed with location impression 23;
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 sheet 21 of accepting that horizontal component is namely gone up bridging piece 22 and level.
Described electrode slice is behind Dies ' Blanking, the setting that in framework 7, is arranged in parallel, and the company's of dependence muscle 6 and electrode slice are connected with framework.
To be attached to down the indented area of accepting sheet behind diode chip 5 upper/lower electrode precoating soldering paste or the conducting resinl during assembling of photovoltaic cell protection module; use simple frock that 180 ° of bendings are carried out in upper bridging piece 22 and hold level; make bridging piece 22 to the electrode of diode chip 5, form the diode bridging; technique by Reflow Soldering or conducting resinl bonding with diode chip 5, upper bridging piece 22 and under accept sheet 21 and be fixed together, again by being processed into the diode protection module after the shaping injection moulding.
Claims (3)
1. a photovoltaic cell protection module comprises injection moulding box (1) and is encapsulated in the interior one group of diode chip (5) of injection moulding box, and it is drawn by one group of corresponding electrode slice, it is characterized in that:
The part that initial electrode slice s in a, the described one group of electrode slice is positioned at injection moulding box (1) is provided with bridging piece (22), upper bridging piece (22) vertical with initial electrode slice s and in the box side stretch out;
The part that end electrodes sheet e in b, the described one group of electrode slice is positioned at injection moulding box (1) is provided with down accepts sheet (21), lower accept sheet (21) vertical with end electrodes sheet e and in the box side stretch out;
The part that intermediate electrode film m in c, the described one group of electrode slice is positioned at injection moulding box (1) be provided with simultaneously bridging piece (22) and under accept sheet (21), upper bridging piece (22) with under accept sheet (21) vertical with electrode slice m and respectively in the box both sides stretch out;
In the d, injection moulding box (1) adjacent upper bridging piece (22) and under accept the diode chip (5) that is connected respectively between the sheet (21).
2. a kind of photovoltaic cell protection module according to claim 1, it is characterized in that: the electrode slice m of described centre arranges one at least.
3. a kind of photovoltaic cell protection module according to claim 1 is characterized in that: described each accept the location impression (23) that sheet (21) is provided with diode chip (5) down.
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 true CN103000724A (en) | 2013-03-27 |
| CN103000724B 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) |
Cited By (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 (4)
| 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 |
| 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 |
-
2012
- 2012-09-15 CN CN201210340682.1A patent/CN103000724B/en active Active
Patent Citations (4)
| 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 |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103000724B (en) | 2015-07-29 |
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