CN102956732A - Junction box of photovoltaic module - Google Patents
Junction box of photovoltaic module Download PDFInfo
- Publication number
- CN102956732A CN102956732A CN2012104353516A CN201210435351A CN102956732A CN 102956732 A CN102956732 A CN 102956732A CN 2012104353516 A CN2012104353516 A CN 2012104353516A CN 201210435351 A CN201210435351 A CN 201210435351A CN 102956732 A CN102956732 A CN 102956732A
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- CN
- China
- Prior art keywords
- circuit board
- photovoltaic module
- terminal box
- diode
- lead
- 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.)
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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
Abstract
A junction box of a photovoltaic module is used for connecting a junction strip of the photovoltaic module with an outgoing line, wherein a circuit board is arranged in the junction box and is welded with the junction strip, a diode is also welded on the circuit board, sealant is respectively filled into the welding part of the circuit board and the junction strip and the welding part of the circuit board and the diode, and a terminal is arranged on the circuit board and is connected with the outgoing line. The sealant is respectively filled into the welding part of the circuit board and the junction strip and the welding part of the circuit board and electronic components such as the diode and is used for stopping air from contacting with the welding parts of the junction strip and the devices such as the diode, so that the welding parts cannot generate electric sparks due to cold solder joint or oxidation, and the safety when the junction box is used in flammable and explosive occasions is ensured; and moreover, the outgoing line penetrates through the junction box so as to directly connect an external device with the terminal on the circuit board in the junction box, accordingly, the outgoing line is spliced with an external wire of the external device through a union joint, so that the safety when the outgoing line is used in the flammable and explosive occasions is ensured.
Description
Technical field
The invention belongs to the photovoltaic field, relate in particular to a kind of terminal box of photovoltaic module.
Background technology
As depicted in figs. 1 and 2, the backboard 91 of existing photovoltaic module is provided with terminal box 92, terminal box 92 is used for connecting convergent belt 93 and the lead-out wire 94 of photovoltaic module, be provided with circuit board 95 in the terminal box 94, circuit board 95 welds with convergent belt 93 and lead-out wire 94 respectively, also be welded with diode 96 electronic devices and components such as grade on the circuit board 95, lead-out wire 94 by connector 97 and external devices the outer lead plug-in be connected.
Because circuit board 95 all is welding with convergent belt 93, lead-out wire 94 and diode 96; without other safeguard measures, if there is because of rosin joint or oxidation loose contact, cause weld easily to produce electric spark; easily ignite damp in inflammable and explosive place, cause production accident.In addition, diode 96 is the maximum devices of terminal box 92 internal heat generation amounts, and it is inadequate that its heat radiation only depends on the copper sheet on the circuit board 95.
Moreover, because lead-out wire 94 adopts plug-in to be connected with the outer lead of external devices, although easy to operate, in a single day but the reliability that connects is relatively poor, if loose contact occurs, just easily produces electric spark, easily ignite damp in inflammable and explosive place, cause production accident.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of terminal box of photovoltaic module is provided, it can not produce electric spark, has guaranteed to be used for the fail safe in inflammable and explosive place.
The present invention realizes like this, a kind of terminal box of photovoltaic module, it is located on the backboard of photovoltaic module, be used for connecting convergent belt and the lead-out wire of photovoltaic module, be provided with circuit board in the described terminal box, described circuit board and the welding of described convergent belt, also be welded with diode on the described circuit board, the weld of the weld of described circuit board and convergent belt and described circuit board and diode has all been filled with fluid sealant, and described circuit board is provided with binding post, and described binding post is connected with described lead-out wire.
Particularly, described binding post is provided with the screw that is threaded with it, and described lead-out wire is wound on the described binding post and by described screw and is fixed.
Preferably, described fluid sealant is organosilicon sealant, polyurethane sealant or silicone sealant.
Further, also be provided with water joint on the described terminal box, described lead-out wire is arranged on the described water joint.
The present invention fills with fluid sealant at the weld of circuit board and convergent belt and the weld of the electronic devices and components such as circuit board and diode, fluid sealant is used for the welds of device and contacting of air such as blocking-up convergent belt and diode, therefore weld can not produce electric spark because of rosin joint or oxidation, has guaranteed that terminal box is used for the fail safe in inflammable and explosive place; In addition, the weld of the electronic devices and components such as diode is filled with fluid sealant can also improve heat-sinking capability, has improved the useful life of the electronic devices and components such as diode; Simultaneously, external devices directly by lead-out wire pass terminal box with its in circuit board on binding post be connected, thereby avoided lead-out wire to peg graft by the outer lead of connector and external devices, guaranteed that lead-out wire is used for the fail safe in inflammable and explosive place.
Description of drawings
In order to be illustrated more clearly in technical scheme of the present invention, the below will do to introduce simply to the accompanying drawing of required use among the embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic rear view of the photovoltaic module that provides of prior art;
Fig. 2 is terminal box among Fig. 1 and the schematic diagram of lead-out wire;
Fig. 3 is the schematic rear view of the photovoltaic module that provides of the embodiment of the invention;
Fig. 4 is the schematic diagram of the terminal box among Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
As shown in Figure 3 and Figure 4, the terminal box 11 of a kind of photovoltaic module that the embodiment of the invention provides, it is located on the backboard 12 of photovoltaic module, be used for connecting convergent belt 13 and the lead-out wire 14 of photovoltaic module, be provided with circuit board 15 in the terminal box 11, circuit board 15 and convergent belt 13 welding, also be welded with diode 16 electronic devices and components such as grade on the circuit board 15, the weld of the electronic devices and components such as the weld of circuit board 15 and convergent belt 13 and circuit board 15 and diode 16 has all been filled with fluid sealant, fluid sealant is specially organosilicon sealant, the sizing material that is used for sealing commonly used such as polyurethane sealant or silicone sealant, the preferred organosilicon sealant of fluid sealant in the present embodiment, fluid sealant is used for blocking-up convergent belt 13 and the weld of diode 16 devices such as grade and contacting of air, therefore weld can not produce electric spark because of rosin joint or oxidation, has guaranteed that terminal box 11 is used for the fail safe in inflammable and explosive place; In addition, because diode 16 is devices of terminal box 11 internal heat generation amounts maximum, the weld of diode 16 electronic devices and components such as grade is filled with fluid sealant can also improve heat-sinking capability, has improved the useful life of diode 16 electronic devices and components such as grade.
Further, circuit board 15 is provided with binding post 17, and binding post 17 is provided with the screw 18 that is threaded with it, and lead-out wire 14 is wound on the binding post 17 and by screw 18 and is fixed, thereby realizes being electrically connected of lead-out wire 14 and circuit board 15; Simultaneously, the other end of lead-out wire 14 need not be connected with connector, it directly is connected with external devices, that is to say, external devices directly by lead-out wire 14 pass terminal box 11 with its in circuit board 15 on binding post 17 be connected, thereby avoided lead-out wire 14 to peg graft by the outer lead of connector and external devices, guaranteed that lead-out wire 14 is used for the fail safe in inflammable and explosive place.
Further, 11 also are provided with water joint 19 on the terminal box, lead-out wire 14 is arranged on the water joint 19, water joint 19 has improved the sealing property of terminal box 11, can stop outside water to enter terminal box 11 inside from the junction of terminal box 11 and lead-out wire 14, thereby can make terminal box 11 reach the IP65 degree of protection.
The above is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (4)
1. the terminal box of a photovoltaic module, it is located on the backboard of photovoltaic module, be used for connecting convergent belt and the lead-out wire of photovoltaic module, be provided with circuit board in the described terminal box, described circuit board and the welding of described convergent belt also are welded with diode on the described circuit board, it is characterized in that, the weld of the weld of described circuit board and convergent belt and described circuit board and diode has all been filled with fluid sealant, and described circuit board is provided with binding post, and described binding post is connected with described lead-out wire.
2. the terminal box of photovoltaic module according to claim 1 is characterized in that, described binding post is provided with the screw that is threaded with it, and described lead-out wire is wound on the described binding post and by described screw and is fixed.
3. the terminal box of photovoltaic module according to claim 1 is characterized in that, described fluid sealant is organosilicon sealant, polyurethane sealant or silicone sealant.
4. the terminal box of photovoltaic module according to claim 1 is characterized in that, also is provided with water joint on the described terminal box, and described lead-out wire is arranged on the described water joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104353516A CN102956732A (en) | 2012-11-05 | 2012-11-05 | Junction box of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104353516A CN102956732A (en) | 2012-11-05 | 2012-11-05 | Junction box of photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102956732A true CN102956732A (en) | 2013-03-06 |
Family
ID=47765266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104353516A Pending CN102956732A (en) | 2012-11-05 | 2012-11-05 | Junction box of photovoltaic module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102956732A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041348A (en) * | 2016-08-03 | 2016-10-26 | 黄海娟 | Connection and sealing method for gold material and silver material |
| CN106041349A (en) * | 2016-08-03 | 2016-10-26 | 黄海娟 | Connection and sealing method for steel material and magnesium material |
| CN106166641A (en) * | 2016-08-03 | 2016-11-30 | 黄海娟 | A kind of connection encapsulating method of magnalium material |
| CN108800285A (en) * | 2018-06-26 | 2018-11-13 | 许泽东 | For the ground heating system under cement layer |
| CN111212531A (en) * | 2020-02-28 | 2020-05-29 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Preparation method of high-corrosion-resistance LRM module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352559Y (en) * | 2009-02-23 | 2009-11-25 | 宁波太阳能电源有限公司 | Silicon solar battery junction box |
| CN201656368U (en) * | 2010-03-12 | 2010-11-24 | 镇江贝德科技有限公司 | Solar energy photovoltaic member terminal box |
| CN201860274U (en) * | 2010-09-28 | 2011-06-08 | 无锡尚德太阳能电力有限公司 | Integral injection molded junction box |
| CN202103641U (en) * | 2011-04-11 | 2012-01-04 | 叶志平 | Multifunctional starting-stopping junction box |
-
2012
- 2012-11-05 CN CN2012104353516A patent/CN102956732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352559Y (en) * | 2009-02-23 | 2009-11-25 | 宁波太阳能电源有限公司 | Silicon solar battery junction box |
| CN201656368U (en) * | 2010-03-12 | 2010-11-24 | 镇江贝德科技有限公司 | Solar energy photovoltaic member terminal box |
| CN201860274U (en) * | 2010-09-28 | 2011-06-08 | 无锡尚德太阳能电力有限公司 | Integral injection molded junction box |
| CN202103641U (en) * | 2011-04-11 | 2012-01-04 | 叶志平 | Multifunctional starting-stopping junction box |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041348A (en) * | 2016-08-03 | 2016-10-26 | 黄海娟 | Connection and sealing method for gold material and silver material |
| CN106041349A (en) * | 2016-08-03 | 2016-10-26 | 黄海娟 | Connection and sealing method for steel material and magnesium material |
| CN106166641A (en) * | 2016-08-03 | 2016-11-30 | 黄海娟 | A kind of connection encapsulating method of magnalium material |
| CN108800285A (en) * | 2018-06-26 | 2018-11-13 | 许泽东 | For the ground heating system under cement layer |
| CN111212531A (en) * | 2020-02-28 | 2020-05-29 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Preparation method of high-corrosion-resistance LRM module |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20130306 |