CN101741034B - Solar junction box - Google Patents
Solar junction box Download PDFInfo
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- CN101741034B CN101741034B CN2010101090187A CN201010109018A CN101741034B CN 101741034 B CN101741034 B CN 101741034B CN 2010101090187 A CN2010101090187 A CN 2010101090187A CN 201010109018 A CN201010109018 A CN 201010109018A CN 101741034 B CN101741034 B CN 101741034B
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- Prior art keywords
- lower cover
- sealing ring
- loam cake
- junction box
- cover
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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
The invention discloses a solar junction box. The solar junction box comprises a main body, a working circuit arranged in the main body, an anode lead wire connecting device and a cathode lead wire connecting device, wherein the main body comprises an upper cover and a lower cover which are jointed together, and a plurality of fastening devices for fixing the upper cover and the lower cover; an annular sealing ring is arranged between the upper cover and the lower cover; and the main body is in hermetic seal with the outside through the sealing ring. The invention solves the problems in the prior art and provides the solar junction box with excellent sealing performance.
Description
Technical field
The present invention relates to a kind of solar junction box that is used for solar module.
Background technology
Because a large amount of burning fossil energies have caused global environmental pollution and ecological disruption, and human existence and development are constituted a threat to.Because solar energy has the following advantages: 1, do not have the region restriction, can directly develop, and need not exploit and transport; 2, not polluting the environment, is the energy that cleans most; 3, total amount is huge, also has the huge development space for the treatment of.Therefore make solar energy become most important renewable resource in the strategy of sustainable development, heliotechnics development at present rapidly, especially popularizing and using of solar energy quickened in the development of solar power station, technology such as solar building integrated.
Photovoltaic cell is the device that the solar radiation energy is directly changed into electric energy, and the getable maximum voltage of single silicon crystal photovoltaic cell is about 0.6V, and maximum current is about 30mA/cm
2Therefore the seldom single use of photovoltaic cell, but be together in series or parallel, to obtain desired voltage or electric current.Photovoltaic module by the product that a plurality of photovoltaic cells connect and encapsulation forms, is the elementary cell of battery array in the photovoltaic generating system just.In order to reach higher conversion efficiency, the cell in the photovoltaic module must have similar characteristic.In actual use, the battery crackle may appear or do not match, inner connect lost efficacy, local by shading or situation such as make dirty, cause the characteristic and the not harmony of integral body of one or a Battery pack.Not only output does not have contribution to the off resonance battery to assembly, and can consume the energy that other batteries produce, and causes local overheating.This phenomenon is called hot spot effect.When assembly during by short circuit, internal power consumption maximum, hot spot effect is also the most serious.Under the prior art, the common way that solves the hot spot effect problem is to install bypass diode on assembly additional.Generally, bypass diode is in reverse bias, does not influence the assembly operate as normal.When a battery was blocked, short its counter being biased into of other batteries was big resistance, and diode current flow surpassed the part that is hidden the battery photogenerated current and shunted by diode in total battery this moment, crossed cause thermal damage thereby avoid being hidden battery.Join a bypass diode generally can in the photovoltaic module each battery, but several batteries are one of an assembly, the battery that is blocked this moment only influences the generating capacity of its place battery pack.
Therefore, solar junction box is the crucial jockey that solar components is formed system, and the effect of terminal box is to prevent to produce when the solar components part is blocked the hot spot effect.Cause the terminal box can't operate as normal if terminal box is damaged or connect not firm meeting, when the solar components part was blocked, whole solar components system be with regard to cisco unity malfunction, and the part that is blocked will be sent a large amount of heats, and serious meeting burns out assembly.Especially,, terminal box reaches 20 years or the longer time under the state that is installed on the solar components, so the possibility that terminal box is damaged is very high because will being used out of doors.In order to protect the electronic circuit in the solar junction box; the necessary waterproof of solar junction box, protection against the tide; under the prior art; usually adopt the quad seal structure to sealing around the solar junction box; square sealing ring promptly is set in square housing; but what make the square close structure in back of expanding with heat and contract with cold in this way in varying environment can't reach identical harmomegathus ratio all around, has influenced sealing effectiveness, causes occurring the water inlet or the corrosion of operating circuit in poor sealing, the terminal box.
Summary of the invention
For overcoming above-mentioned shortcoming, the object of the present invention is to provide a kind of sealing property solar junction box preferably.
In order to reach above purpose, the technical solution used in the present invention is: a kind of solar junction box, it comprises body, be arranged on the operating circuit of described body interior, positive wire jockey, cathode conductor jockey, described body comprises the loam cake that combines and lower cover, a plurality of fastener that described loam cake and lower cover are fixed together of being used for, be provided with a sealing ring that is annular between described loam cake and the lower cover, described body is by described sealing ring and extraneous hermetic seal.
Preferably, described loam cake and lower cover are rounded, and described sealing ring is arranged on the junction of described loam cake and lower cover.
Preferably, described sealing ring is arranged on the inside of described loam cake or lower cover.
More preferably, be formed with ringwise cover flange in the described loam cake, be formed with ringwise lower cover flange corresponding to described cover flange in the described lower cover, described sealing ring is arranged on the junction of described cover flange and lower cover flange.
More preferably, described cover flange and lower cover flange are in conjunction with forming a confined space that is positioned at described loam cake and lower cover, and described operating circuit is removably disposed in the described confined space.
More preferably, be formed with ringwise cover flange in the described loam cake, be formed with ringwise lower cover depression corresponding to described cover flange in the described lower cover, described cover flange, sealing ring are positioned at described lower cover depression, and described sealing ring is between described cover flange and lower cover depression.
Further, be arranged with a ringwise neck bush in the described cover flange, one bottom surface is radially formed on the bottom of described neck bush, described sealing ring is set in described cover flange outer surface, the bottom surface of described neck bush is positioned at the below of described sealing ring, and described neck bush, cover flange, sealing ring are positioned at described lower cover depression.
Further, described cover flange combines the confined space that formation one is positioned at described loam cake and lower cover with described lower cover depression, and described operating circuit is removably disposed in the described confined space.
Further, described body is square, and described fastener lays respectively at the corner location of described body.
Further, described operating circuit comprises a sheet metal and a plurality of bypass diode, be formed with interconnection line on the described sheet metal, described bypass diode directly is electrically connected in the described interconnection line, and described interconnection line is electrically connected with described positive wire jockey and cathode conductor jockey respectively in described body interior.
Owing to adopted above technical scheme, make the present invention under the situation of meeting cold contraction or expanded by heating, have the telescopicing performance of homogeneous, thereby can guarantee the inner air-tightness with outside air of terminal box, guarantee the permanent of terminal box useful life.
Description of drawings
Accompanying drawing 1 is the front view of loam cake among the solar junction box embodiment according to the present invention;
Accompanying drawing 2 is the front view of lower cover among the solar junction box embodiment according to the present invention;
Accompanying drawing 3 is along the cutaway view of A-A in the accompanying drawing 1;
Accompanying drawing 4 is the local enlarged diagram at B place in the accompanying drawing 3;
Accompanying drawing 5 is the front view of the solar junction box embodiment according to the present invention;
Accompanying drawing 6 is along the cutaway view of C-C in the accompanying drawing 5;
Accompanying drawing 7 is the local enlarged diagram at D place in the accompanying drawing 6.
Wherein:
110, loam cake; 111, bypass diode; 112, copper sheet; 113, plug; 114, fastener; 115, positive wire jockey; 116, cathode conductor jockey; 117, neck bush; 119, cover flange;
120, lower cover; 121, lower cover depression; 122, socket; 123, connecting hole.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Shown in accompanying drawing 1 and accompanying drawing 2, solar junction box in the present embodiment mainly is made up of the body that is square, the operating circuit that is arranged on body interior, positive wire jockey 115, cathode conductor jockey 116, the fastener 114 that body comprises loam cake 110, lower cover 120 and is used for loam cake 110 and lower cover 120 are fixed together, between loam cake 110 and the lower cover 120 by an O-ring seal 118 and extraneous hermetic seal.
The lower surface of loam cake 110 is provided with operating circuit, operating circuit comprises a plurality of bypass diodes 111 and copper sheet 112, mode by etching or machining on the copper sheet 112 is formed with interconnect circuit, thereby each bypass diode 111 directly is soldered to copper sheet 112 and is connected in the operating circuit, increase the area of dissipation of bypass diode 111 by copper sheet 112, thereby prolong the useful life of bypass diode 111; Copper sheet 112 extends to positive wire jockey 115 and cathode conductor jockey 116 respectively in loam cake 110.
Body interior also is provided with the plurality of circuits communication apparatus, the lower surface of loam cake 110 is provided with a plurality of plugs 113, the upper surface correspondence position of lower cover 120 is provided with socket 122, also be provided with the spring coil that is used for fastening plug 113 in the socket 122, when loam cake 110 and lower cover 120 were fixed together, circuit communication apparatus was communicated with operating circuit.
Fastener in the present embodiment comprises 4 knobs that are evenly distributed on four jiaos of bodies, each knob passes loam cake 110 respectively and is connected to the connecting hole 123 that is positioned on the lower cover 120, adopt the knob connection side the process of dismounting, owing to be arranged on four jiaos of warpages that therefore can effectively prevent four jiaos of bodies of body, certainly can also adopt for example multiple other connected mode such as flange and groove here, give unnecessary details no longer one by one here.
Referring to accompanying drawing 3 to accompanying drawing 7, enclose ringwise cover flange 119 around form one by copper sheet 112 formed circuit in the loam cake 110, correspondingly, be formed with ringwise lower cover depression 121 corresponding to cover flange 119 in the lower cover 120, cover flange 119 forms a confined space that is positioned at body interior with lower cover depression 121 in the process that combines; The diameter of ringwise neck bush 117 is slightly less than the diameter of cover flange 119, neck bush 117 corresponding inboards of inserting cover flange 119, O-ring seal 118 is surrounded on the outside of cover flange 119, the bottom of neck bush 117 has a bottom surface that slightly radially enlarges, this bottom surface is covered in the lower end of cover flange 119, thereby can prevent that O-ring seal 118 from leaping up out from the lower end.
As shown in Figure 7, neck bush 117, cover flange 119, O-ring seal 118 are contained in the lower cover depression 121 in loam cake 110 is incorporated into the process of lower cover 120, sealing ring 118 is between the inner surface of cover flange 119 outer surfaces and lower cover depression 121 as can be seen, and neck bush is between cover flange 119 inner surfaces and lower cover cave in 121 outer surface.By said structure, formed an airtight space between cover flange 119 and the lower cover depression 121, and operating circuit has been placed this confined space inside, operating circuit and outside air thoroughly can be isolated, increased the useful life of terminal box greatly.
It is to be noted, the present invention is not limited to above execution mode, and its spirit is the seal form in O-ring seal and circular seal chamber, and multiple variation can also be arranged, for example the shape of loam cake and lower cover is circle, and sealing ring is arranged on the junction of loam cake and lower cover; Perhaps be formed with ringwise cover flange in the loam cake, be formed with ringwise lower cover flange corresponding to cover flange in the lower cover, sealing ring is arranged on the junction of cover flange and lower cover flange, thereby forms a confined space.
Abovely the present invention is described in detail in conjunction with execution mode; only be explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (5)
1. solar junction box, it comprises body, be arranged on the operating circuit of described body interior, the positive wire jockey, the cathode conductor jockey, described body comprises loam cake and the lower cover that combines, a plurality of fasteners that described loam cake and lower cover are fixed together of being used for, be provided with a sealing ring that is annular between described loam cake and the lower cover, described body is by described sealing ring and extraneous hermetic seal, described sealing ring is arranged on the inside of described loam cake or lower cover, be formed with ringwise cover flange in the described loam cake, be formed with ringwise lower cover depression corresponding to described cover flange in the described lower cover, described cover flange, sealing ring is positioned at described lower cover depression, described sealing ring is between described cover flange and lower cover depression, it is characterized in that: be arranged with a ringwise neck bush in the described cover flange, one bottom surface is radially formed on the bottom of described neck bush, described sealing ring is set in described cover flange outer surface, the bottom surface of described neck bush is positioned at the below of described sealing ring, described neck bush, cover flange, sealing ring is positioned at described lower cover depression.
2. solar junction box according to claim 1 is characterized in that: described loam cake and lower cover are rounded, and described sealing ring is arranged on the junction of described loam cake and lower cover.
3. solar junction box according to claim 1, it is characterized in that: described cover flange combines the confined space that formation one is positioned at described loam cake and lower cover with described lower cover depression, and described operating circuit is removably disposed in the described confined space.
4. according to arbitrary described solar junction box in the claim 1 to 3, it is characterized in that: described body is square, and described fastener lays respectively at the corner location of described body.
5. solar junction box according to claim 4, it is characterized in that: described operating circuit comprises a sheet metal and a plurality of bypass diode, be formed with interconnection line on the described sheet metal, described bypass diode directly is electrically connected in the described interconnection line, and described interconnection line is electrically connected with described positive wire jockey and cathode conductor jockey respectively in described body interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101090187A CN101741034B (en) | 2010-02-08 | 2010-02-08 | Solar junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101090187A CN101741034B (en) | 2010-02-08 | 2010-02-08 | Solar junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101741034A CN101741034A (en) | 2010-06-16 |
| CN101741034B true CN101741034B (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101090187A Active CN101741034B (en) | 2010-02-08 | 2010-02-08 | Solar junction box |
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| Country | Link |
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| CN (1) | CN101741034B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687181B (en) * | 2018-12-21 | 2021-06-04 | 苏州阿奎睿思机器人科技有限公司 | Data signal connector |
| CN109742598B (en) * | 2018-12-21 | 2021-06-04 | 苏州阿奎睿思机器人科技有限公司 | Line card and signal connector |
| CN111464125A (en) * | 2020-04-09 | 2020-07-28 | 金寨嘉悦新能源科技有限公司 | Polycrystalline cell packaging mechanism |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650028Y (en) * | 2003-10-24 | 2004-10-20 | 张晓峰 | Rainwater-proofing terminal box for photoelectric complementary solar water heater |
| CN2716748Y (en) * | 2004-06-17 | 2005-08-10 | 玉环县阳光能源有限公司 | An improved structure of solar energy assembly junction box |
| CN2831559Y (en) * | 2005-08-15 | 2006-10-25 | 苏州快可光伏电子有限公司 | Terminal box for solar cell modular |
| CN101286626A (en) * | 2007-07-27 | 2008-10-15 | 贺行平 | Solar photovoltaic metallic wiring box |
| CN201256270Y (en) * | 2008-07-17 | 2009-06-10 | 江苏林洋电子有限公司 | Wiring box for solar cell assembly |
| CN201369692Y (en) * | 2009-03-10 | 2009-12-23 | 泉州百来太阳能有限公司 | Solar battery box |
| CN201623421U (en) * | 2010-02-08 | 2010-11-03 | 许建方 | Solar connecting box |
-
2010
- 2010-02-08 CN CN2010101090187A patent/CN101741034B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2650028Y (en) * | 2003-10-24 | 2004-10-20 | 张晓峰 | Rainwater-proofing terminal box for photoelectric complementary solar water heater |
| CN2716748Y (en) * | 2004-06-17 | 2005-08-10 | 玉环县阳光能源有限公司 | An improved structure of solar energy assembly junction box |
| CN2831559Y (en) * | 2005-08-15 | 2006-10-25 | 苏州快可光伏电子有限公司 | Terminal box for solar cell modular |
| CN101286626A (en) * | 2007-07-27 | 2008-10-15 | 贺行平 | Solar photovoltaic metallic wiring box |
| CN201256270Y (en) * | 2008-07-17 | 2009-06-10 | 江苏林洋电子有限公司 | Wiring box for solar cell assembly |
| CN201369692Y (en) * | 2009-03-10 | 2009-12-23 | 泉州百来太阳能有限公司 | Solar battery box |
| CN201623421U (en) * | 2010-02-08 | 2010-11-03 | 许建方 | Solar connecting box |
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| Publication number | Publication date |
|---|---|
| CN101741034A (en) | 2010-06-16 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20100616 Assignee: Suzhou Xietong Photovoltaic Science & Technology Co., Ltd. Assignor: Xu Jianfang|Chen Lequn Contract record no.: 2014320010122 Denomination of invention: Solar junction box with better heat dissipation effect Granted publication date: 20111130 License type: Exclusive License Record date: 20140630 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151202 Address after: 215011 Jiangsu city of Suzhou province Wuzhong District Mudu Clock Tower Road 30-B Patentee after: Suzhou Xietong Photovoltaic Science & Technology Co., Ltd. Address before: Mudu Clock Tower Road in Suzhou city of Jiangsu province 215101 No. 30 Suzhou Photovoltaic Technology Co. Ltd in harmonic pass Patentee before: Xu Jianfang Patentee before: Chen Lequn |
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| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215011 Jiangsu city of Suzhou province Wuzhong District Mudu Clock Tower Road 30-B Patentee after: Suzhou Heng Tong photovoltaic Polytron Technologies Inc Address before: 215011 Jiangsu city of Suzhou province Wuzhong District Mudu Clock Tower Road 30-B Patentee before: Suzhou Xietong Photovoltaic Science & Technology Co., Ltd. |