CN203722572U - Photovoltaic junction box - Google Patents
Photovoltaic junction box Download PDFInfo
- Publication number
- CN203722572U CN203722572U CN201420026558.2U CN201420026558U CN203722572U CN 203722572 U CN203722572 U CN 203722572U CN 201420026558 U CN201420026558 U CN 201420026558U CN 203722572 U CN203722572 U CN 203722572U
- Authority
- CN
- China
- Prior art keywords
- box body
- electric conductor
- fixed
- electric conductors
- photovoltaic junction
- 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.)
- Expired - Lifetime
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 6
- 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
- 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
- 230000005855 radiation Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- 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
Abstract
Disclosed in the utility model is a photovoltaic junction box comprising a box body. Electric conductors are arranged in the box body; bus bars are arranged at the rear portions of the electric conductors; diodes are arranged at the middle portions; and cables are connected to the front ends. Besides, spring clamps whose middle portions protrude downwardly are fixed at the rear portions of the electric conductors; and the middle portions of the spring clamps are pressed at the bus bars. After optimization, positioning columns are arranged at the box body; positioning holes cooperating with the positioning columns are formed in the electric conductors; the leads of the diodes are connected to the electric conductors by an electric resistance welding way; the cables are connected to the electric conductors by the electric resistance welding way; and the end portions of the cables are fixed at the box body by pressing blocks that are fixed at the box body by an ultrasonic welding way. And the inside of the box body is filled with a sealant. The provided photovoltaic junction box 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.Conventionally, this photovoltaic junction box comprises box body, in this box body, is provided with electric conductor, and this electric conductor rear portion is provided with that busbar, middle part are provided with diode, front end is connected with cable.General, the electrical connection of this photovoltaic junction box inside (comprising diode connection, cable connection etc.) adopts riveted joint, screw to connect or scolding tin connection, thereby the electrical connection that causes this terminal box is firm not, parts are easy to rock, and it is poor to dispel the heat.That is, total quality is satisfied not to the utmost.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic junction box, it has preferably feature of total quality.
The technical solution adopted in the present invention is: photovoltaic junction box, comprise box body, in this box body, be provided with electric conductor, this electric conductor rear portion is provided with that busbar, middle part are provided with diode, front end is connected with cable, described electric conductor rear portion is fixed with the Spring Card that protrude at middle part 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 the mode of this briquetting by ultrasonic fusing is fixed on this box body.
In described box body, be filled with fluid sealant.
The advantage that compared to the prior art the present invention had is: better quality.Photovoltaic junction box of the present invention improves in following several respects: by encapsulating at the inner encapsulating of box body, reach the effect of the whole Homogeneouslly-radiating of product; Electric conductor head connects busbar end, uses Spring Card to connect, the problems such as the rosin joint occurring in solution photovoltaic electrification component busbar welding process, sealing-off; Adopt electric conductor reference column thermal welding technique for fixing, can solve after electric conductor is installed and have the situation of rocking; Briquetting adopts ultrasonic fusing technique with being connected of box body, and the bad ratio that briquetting is installed is reduced to 0; Between diode and electric conductor, adopt resistance welded to be connected technique, can solve the bigger than normal and solid problem of not prison welding of traditional scolding tin connected mode contact resistance; Between cable and electric conductor, also adopt resistance welding technology, can solve the problem that traditional riveting mode contact resistance is bigger than normal and pulling capacity is less than normal.Like this, make connection between these terminal box parts comparatively firmly, parts are difficult for rocking, and heat radiation level is better, 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;
Fig. 3 is the perspective exploded view of electric conductor of the present invention, busbar, Spring Card cooperation.
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.In this box body 10, be provided with electric conductor 20.These electric conductor 20 rear portions are provided with that busbar 30, middle part are provided with diode 40, front end is connected with cable 50.Further say, these electric conductor 20 rear portions are fixed with the Spring Card 60 that protrude at middle part downwards, and the middle part of this Spring Card 60 is pressed on this busbar 30.That is to say, this Spring Card 60 can be " U " shape.The phenomenons such as the rosin joint of like this, having avoided occurring in busbar 30 welding processes, sealing-off.
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 on this reference column 11 of this location hole 21 matched in clearance, thus after having avoided this electric conductor 20 to install, there is the situation of rocking.
The problems such as the lead-in wire of this diode 40 connects this electric conductor 20 by the mode of electric resistance welding, and the bigger than normal and not prison welding of the resistance of having avoided the contact of traditional scolding tin connected mode to cause is solid.
This cable 50 connects this electric conductor 20 by the mode of electric resistance welding, has avoided the problems such as the bigger than normal and pulling capacity of traditional riveting 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 the mode of this briquetting 70 by ultrasonic fusing is fixed on this box body 10.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.
In this box body 10, be filled with fluid sealant (not shown on figure), make this photovoltaic junction box there is radiating effect comparatively uniformly.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; 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 (1)
1. photovoltaic junction box, comprise box body (10), in this box body (10), be provided with electric conductor (20), this electric conductor (20) rear portion is provided with that busbar (30), middle part are 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 protrude at middle part downwards, and the middle part of this Spring Card (60) is pressed on this busbar (30);
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;
The lead-in wire of described diode (40) connects this electric conductor (20) by the mode of electric resistance welding;
Described cable (50) connects this electric conductor (20) by the mode of electric resistance welding;
It is upper that this box body (10) is fixed on by a briquetting (70) in the end of described cable (50), and the mode of this briquetting (70) by ultrasonic fusing is fixed on this box body (10);
Described box body is filled with fluid sealant in (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026558.2U CN203722572U (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420026558.2U CN203722572U (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722572U true CN203722572U (en) | 2014-07-16 |
Family
ID=51161692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420026558.2U Expired - Lifetime CN203722572U (en) | 2014-01-16 | 2014-01-16 | Photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722572U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270088A (en) * | 2014-09-26 | 2015-01-07 | 江西晶科光伏材料有限公司 | Photovoltaic junction box easy to assemble and manufacturing method thereof |
| CN105071765A (en) * | 2015-09-11 | 2015-11-18 | 上海艾力克新能源有限公司 | Photovoltaic junction box |
| CN105515517A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting wiring terminals of photovoltaic module junction box and cables |
| CN105515515A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Photovoltaic assembly junction box with cable fixing devices |
| CN105515516A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting wiring terminals of photovoltaic module junction box and bus bars |
| CN105515518A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting diodes and wiring terminals of photovoltaic module junction box |
-
2014
- 2014-01-16 CN CN201420026558.2U patent/CN203722572U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515517A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting wiring terminals of photovoltaic module junction box and cables |
| CN105515515A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Photovoltaic assembly junction box with cable fixing devices |
| CN105515516A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting wiring terminals of photovoltaic module junction box and bus bars |
| CN105515518A (en) * | 2014-09-22 | 2016-04-20 | 江苏通灵电器股份有限公司 | Method for connecting diodes and wiring terminals of photovoltaic module junction box |
| CN104270088A (en) * | 2014-09-26 | 2015-01-07 | 江西晶科光伏材料有限公司 | Photovoltaic junction box easy to assemble and manufacturing method thereof |
| CN104270088B (en) * | 2014-09-26 | 2016-08-31 | 江西晶科光伏材料有限公司 | Photovoltaic junction box being easily assembled and preparation method thereof |
| CN105071765A (en) * | 2015-09-11 | 2015-11-18 | 上海艾力克新能源有限公司 | Photovoltaic junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |