CN104796078A - Photovoltaic junction box - Google Patents
Photovoltaic junction box Download PDFInfo
- Publication number
- CN104796078A CN104796078A CN201410019434.6A CN201410019434A CN104796078A CN 104796078 A CN104796078 A CN 104796078A CN 201410019434 A CN201410019434 A CN 201410019434A CN 104796078 A CN104796078 A CN 104796078A
- Authority
- CN
- China
- Prior art keywords
- box body
- photovoltaic junction
- electric conductor
- junction box
- fixed
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 15
- 239000000565 sealant Substances 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a photovoltaic junction box comprising a box body. Electrical conductors are arranged in the box body. Each electrical conductor is provided with a bus bar in the rear part and a diode in the middle part, and is connected with a cable at the front end. A spring clamp of which the middle portion protrudes downwardly is fixed to the rear part of each electrical conductor, and the middle portion of each spring clamp presses the corresponding bus bar. After optimization, positioning columns are arranged on the box body, positioning holes matched with the positioning columns are formed in the electrical conductors, the leads of the diodes are connected to the electrical conductors by a resistance welding way, the cables are connected to the electrical conductors by the resistance welding way, the end portions of the cables are fixed to the box body by pressing blocks which are fixed to the box body by an ultrasonic welding way, and the box body is filled with sealant. The photovoltaic junction box provided by the invention has the advantage of excellent quality.
Description
Technical field
The present invention relates to photovoltaic accessory technical field, especially relate to a kind of photovoltaic junction box.
Background technology
Photovoltaic junction box is accessory conventional in photovoltaic industry.Usually, this photovoltaic junction box comprises box body, is provided with electric conductor in this box body, and this electric conductor rear portion is provided with busbar, middle part is provided with diode, front end is connected with cable.General, the electrical connection (comprising diode connection, cable connection etc.) of this photovoltaic junction box inside adopts riveted joint more, screw connects or scolding tin connects, thus cause the electrical connection of this terminal box not firmly, parts are easy to rock, and it is poor to dispel the heat.That is, total quality satisfaction not to the utmost.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic junction box, it has total quality preferably feature.
The technical solution adopted in the present invention is: photovoltaic junction box, comprise box body, electric conductor is provided with in this box body, this electric conductor rear portion is provided with busbar, middle part is provided with diode, front end is connected with cable, described electric conductor rear portion is fixed with the Spring Card that middle part is protruded downwards, and the middle part of this Spring Card is pressed on this busbar.
Described box body is provided with reference column, the location hole that this electric conductor is provided with and this reference column matches.
The lead-in wire of described diode connects this electric conductor by the mode of electric resistance welding.
Described cable connects this electric conductor by the mode of electric resistance welding.
The end of described cable is fixed on this box body by a briquetting, and this briquetting is fixed on this box body by the mode of ultrasonic fusing.
Fluid sealant is filled with in described box body.
The present invention is compared to the prior art advantageously: better quality.Photovoltaic junction box of the present invention improves in following several respects: by the encapsulation of tray interior encapsulating, reach the effect of Total Product Homogeneouslly-radiating; Electric conductor head connects busbar end, uses Spring Card to connect, and solves the problem such as rosin joint, sealing-off occurred in photovoltaic electrification component busbar welding process; Adopt electric conductor reference column thermal welding technique for fixing, can solve after electric conductor is installed and have the situation of rocking; The connection of briquetting and box body adopts ultrasonic fusing technique, and the bad ratio that briquetting is installed is reduced to 0; Adopt resistance welded Joining Technology between diode and electric conductor, the solid problem of the bigger than normal and not prison welding of traditional scolding tin connected mode contact resistance can be solved; Also adopt resistance welding technology between cable and electric conductor, the problem that conventional rivet connection connected mode contact resistance is bigger than normal and pulling capacity is less than normal can be solved.Like this, make the connection between these terminal box parts comparatively firmly, parts not easily rock, and heat radiation level is better, and total quality is better.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the schematic perspective view of embodiments of the invention;
Fig. 2 is the vertical view (broken section) of embodiments of the invention;
The perspective exploded view that Fig. 3 is electric conductor of the present invention, busbar, Spring Card coordinate.
In figure: 10, box body, 11, reference column; 20, electric conductor, 21, location hole; 30, busbar; 40, diode; 50, cable; 60, Spring Card; 70, briquetting.
Embodiment
Embodiment, is shown in shown in Fig. 1 to Fig. 3: photovoltaic junction box, comprises box body 10.Electric conductor 20 is provided with in this box body 10.This electric conductor 20 rear portion is provided with busbar 30, middle part is provided with diode 40, front end is connected with cable 50.Further say, this electric conductor 20 rear portion is fixed with the Spring Card 60 that middle part is protruded downwards, and the middle part of this Spring Card 60 is pressed on this busbar 30.That is, this Spring Card 60 can be " U " shape.Like this, the phenomenon such as rosin joint, sealing-off occurred in busbar 30 welding process is avoided.
Optimize:
This box body 10 is provided with reference column 11, the location hole 21 that this electric conductor 20 is provided with and this reference column 11 matches.That is, being enclosed within this reference column 11 of this location hole 21 matched in clearance, thus avoid after this electric conductor 20 is installed and have the situation of rocking.
The lead-in wire of this diode 40 connects this electric conductor 20 by the mode of electric resistance welding, avoids traditional scolding tin connected mode and contacts the problems such as the bigger than normal and not prison welding of the resistance caused is solid.
This cable 50 connects this electric conductor 20 by the mode of electric resistance welding, avoids the problems such as the bigger than normal and pulling capacity of conventional rivet connection connected mode contact resistance is less than normal.
The end of this cable 50 is fixed on this box body 10 by a briquetting 70, and this briquetting 70 is fixed on this box body 10 by the mode of ultrasonic fusing.That is, this briquetting 70 is pressed on this cable 50.Like this, the bad ratio that this briquetting 70 is installed is reduced to 0, and makes the connection of this cable 50 and this box body 10 comparatively firm.
Be filled with fluid sealant (not shown on figure) in this box body 10, make this photovoltaic junction box have comparatively uniform radiating effect.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, all in like manner draw together in scope of patent protection of the present invention.
Claims (6)
1. photovoltaic junction box, comprise box body (10), electric conductor (20) is provided with in this box body (10), this electric conductor (20) rear portion is provided with busbar (30), middle part is provided with diode (40), front end is connected with cable (50), it is characterized in that: described electric conductor (20) rear portion is fixed with the Spring Card (60) that middle part is protruded downwards, and the middle part of this Spring Card (60) is pressed on this busbar (30).
2. photovoltaic junction box according to claim 1, is characterized in that: described box body (10) is provided with reference column (11), the location hole (21) that this electric conductor (20) is provided with and this reference column (11) matches.
3. photovoltaic junction box according to claim 1, is characterized in that: the lead-in wire of described diode (40) connects this electric conductor (20) by the mode of electric resistance welding.
4. photovoltaic junction box according to claim 1, is characterized in that: described cable (50) connects this electric conductor (20) by the mode of electric resistance welding.
5. photovoltaic junction box according to claim 1, is characterized in that: the end of described cable (50) is fixed on this box body (10) by a briquetting (70), and this briquetting (70) is fixed on this box body (10) by the mode of ultrasonic fusing.
6. photovoltaic junction box according to claim 1, is characterized in that: described box body is filled with fluid sealant in (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019434.6A CN104796078A (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410019434.6A CN104796078A (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104796078A true CN104796078A (en) | 2015-07-22 |
Family
ID=53560647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410019434.6A Pending CN104796078A (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104796078A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330089A (en) * | 2016-10-17 | 2017-01-11 | 江阴市顺意科技开发有限公司 | Solar photovoltaic junction box |
| CN107649772A (en) * | 2017-10-30 | 2018-02-02 | 扬中市龙飞达汽车配件有限公司 | A kind of cable welding equipment for photovoltaic junction box |
| CN108923744A (en) * | 2018-09-06 | 2018-11-30 | 江西晶科光伏材料有限公司 | The anti-loaded photovoltaic junction box and preparation method thereof of anti-diode |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082255A (en) * | 1992-08-10 | 1994-02-16 | 株式会社Aue研究所 | Connector and connector manufacturing method |
| CN101300684A (en) * | 2005-11-01 | 2008-11-05 | 住友电装株式会社 | Terminal box for solar cell module |
| CN201758130U (en) * | 2010-07-19 | 2011-03-09 | 常州天合光能有限公司 | Terminal box of bus bar pressing clamp type connecting seat |
| CN201758218U (en) * | 2010-07-21 | 2011-03-09 | 庆盟工业股份有限公司 | Conducting structure and junction box |
| US20110081808A1 (en) * | 2009-10-07 | 2011-04-07 | Japan Aviation Electronics Industry, Limited | Contact and connection unit provided with the contact |
| CN202940258U (en) * | 2012-12-05 | 2013-05-15 | 江西晶科光伏材料有限公司 | Photovoltaic junction box |
-
2014
- 2014-01-16 CN CN201410019434.6A patent/CN104796078A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082255A (en) * | 1992-08-10 | 1994-02-16 | 株式会社Aue研究所 | Connector and connector manufacturing method |
| CN101300684A (en) * | 2005-11-01 | 2008-11-05 | 住友电装株式会社 | Terminal box for solar cell module |
| US20110081808A1 (en) * | 2009-10-07 | 2011-04-07 | Japan Aviation Electronics Industry, Limited | Contact and connection unit provided with the contact |
| CN201758130U (en) * | 2010-07-19 | 2011-03-09 | 常州天合光能有限公司 | Terminal box of bus bar pressing clamp type connecting seat |
| CN201758218U (en) * | 2010-07-21 | 2011-03-09 | 庆盟工业股份有限公司 | Conducting structure and junction box |
| CN202940258U (en) * | 2012-12-05 | 2013-05-15 | 江西晶科光伏材料有限公司 | Photovoltaic junction box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330089A (en) * | 2016-10-17 | 2017-01-11 | 江阴市顺意科技开发有限公司 | Solar photovoltaic junction box |
| CN107649772A (en) * | 2017-10-30 | 2018-02-02 | 扬中市龙飞达汽车配件有限公司 | A kind of cable welding equipment for photovoltaic junction box |
| CN108923744A (en) * | 2018-09-06 | 2018-11-30 | 江西晶科光伏材料有限公司 | The anti-loaded photovoltaic junction box and preparation method thereof of anti-diode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150722 |