CN203872128U - Novel solar photovoltaic module junction box - Google Patents
Novel solar photovoltaic module junction box Download PDFInfo
- Publication number
- CN203872128U CN203872128U CN201420251744.6U CN201420251744U CN203872128U CN 203872128 U CN203872128 U CN 203872128U CN 201420251744 U CN201420251744 U CN 201420251744U CN 203872128 U CN203872128 U CN 203872128U
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- China
- Prior art keywords
- fin
- heat dissipation
- rectifier diode
- diode
- box body
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- 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 - Fee Related
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model discloses a novel solar photovoltaic module junction box comprising a frame-shaped box body, in which are disposed rectifier diodes and binding posts. The bottom parts of the rectifier diodes are provided with a corresponding heat dissipation pedestal, and the outer sides of the rectifier diodes are correspondingly provided with radiation fins. The radiation fins are fixedly disposed on the binding post, and one side of each of the radiation fins is connected with the corresponding rectifier diode. An upper radiation fin is disposed in the box body, and the lower surface of the upper radiation fin is tightly cooperated with the upper surfaces of the rectifier diodes. The gaps are arranged between the upper radiation fin and the radiation fins disposed on the bottom parts of the rectifier diodes, and therefore a cross-ventilation channel is formed. The novel solar photovoltaic module junction box is advantageous in that the rectifier diodes are provided with the heat dissipation pedestal, and therefore the sufficient heat dissipation surfaces of the diodes can be increased during use, the heat energy conduction can be realized, and the cooling effect can be realized, and then the heat dissipation effect of the junction box can be greatly improved.
Description
Technical field
The utility model relates to a kind of solar photovoltaic assembly terminal box, belongs to photovoltaic solar technical field.
Background technology
In photovoltaic industry, as the core component terminal box of solar module, play a part undoubtedly very importantly, thereby it is also just extremely urgent to solve the key problem of terminal box heat radiation.
Solar photovoltaic assembly terminal box is the Overbridge device that the lead-in wire of solar photovoltaic assembly is connected with external lead wire, and diode is equipped with in inside.
Choosing of diode is destroyed due to hot spot effect in order to prevent solar module, consumed with the assembly of avoiding the energy crested that in series loop, illumination assembly is produced.Meanwhile, diode can play and prevent that storage battery is in reverse charge function at night in independent photovoltaic generating system.
At present, the selected diode of industry interior[exterior is Schottky series, and itself does not have radiator structure.In the time that solar photovoltaic assembly generates electricity, larger electric current can flow through the diode in solar photovoltaic assembly terminal box, make diode heating, if not in time heat is left, under continuous high temperature state, can make diode produce certain fatigue strength, and then affect the performance of diode, and make it to reduce useful life, when serious, also can cause circuit open circuit by breakdown diode, the final work that affects solar photovoltaic assembly, even damages expensive solar photovoltaic assembly.
The general solar photovoltaic assembly terminal box using does not have reliable heat abstractor, relies on the inner space of diode itself and terminal box to carry out natural heat dissipation completely.Be subject to the limitation in space, often the amount of heat of diode heating cannot effectively be mediated, and then affects the molecular structure of terminal box inside, if temperature continues under saturation condition, the outer wall of terminal box can produce distortion, aging, thereby damages whole terminal box, and whole solar module.
For the heat dissipation problem of diode, also there is part terminal box producer to select to increase the way of terminal box inner space or the mode of large chip diode more chosen to reach the object of heat radiation.But along with European Union in 2011 to two counter surveys of solar module since, the price of solar module continues to drop, and affected by this, the price of terminal box also goes way down.In the face of the huge market competitive pressure, just seem particularly important for the cost of controlling terminal box.So increase the space of terminal box or change diode, the cost of butted line box is all undoubtedly a huge impact.
Utility model content
The purpose of this utility model is: the problem existing for above-mentioned prior art, the solar photovoltaic assembly terminal box that a kind of integrated level is high is proposed, and perfect heat-dissipating, reduces costs, and is beneficial to production, is convenient to dismounting.
In order to reach above object, a kind of solar energy photovoltaic assembly junction box of the utility model, comprise shaped as frame box body, in described box body, be provided with rectifier diode and binding post, corresponding described rectifier diode bottom is provided with corresponding heat dissipation base, described heat dissipation base is fixedly installed on described diode bottom margin place, and the bottom surface of described heat dissipation base is fixedly connected with binding post, and described heat dissipation base is trapezoidal plate; Corresponding described rectifier diode outside is equipped with corresponding fin, and described fin is fixed on described binding post, and a side is connected with corresponding described rectifier diode; Described fin is the rectangle integrated member that pure aluminum alloy is made, one side of described fin is provided with spill square opening, described rectifier diode is positioned at described spill square opening, and the outer peripheral face of the heat dissipation base of rectifier diode closely cooperates described in the inner peripheral surface of described spill square opening; In described box body, be provided with fin, described upper fin both sides are fixedly connected with the medial surface of described box body, the lower surface of described upper fin and the upper surface of described rectifier diode closely cooperate, described upper fin and be provided with gap between the fin of rectifier diode bottom, forms air convection channel.
Above-mentioned solar energy photovoltaic assembly junction box, wherein, described upper fin is " protruding " shape plate that pure aluminum alloy is made, described upper fin bossing is provided with the groove of indent.
The beneficial effects of the utility model:
Due to rectifier diode band heat dissipation base, the surperficial close contact of the heat dissipation base of diode and binding post, be equal to diode pipe shaft, increase diode and in use had sufficient radiating surface, for the heat producing conducts, thereby reach the effect that reduces temperature, greatly improved the radiating effect of terminal box; And diodes inside terminal box bottom is connected to respectively fin, and fin just in time covers binding post, and ensure upper and lower surface close contact, fin is provided with spill square opening, and for wrapping up diode, diode in the course of the work, in self-radiating, also heat is conducted to fin by binding post, be unkitted the terminal box of fin compared to equal operating state, temperature has reduced by 10～15 DEG C; Upper fin covers binding post and diode, the lower surface of upper fin and diode close contact, diode in the course of the work, when a heat part of distributing is conducted by binding post, a part conducts to upper fin via diode pipe shaft, be unkitted the terminal box of fin compared to equal operating state, temperature has reduced by 20～25 DEG C.In sum, the mounting design of fin has reduced the temperature in box body effectively, has extended the useful life of diode, has improved the operating efficiency of terminal box simultaneously.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of fin.
Fig. 3 is the structural representation of upper fin.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of solar energy photovoltaic assembly junction box of the utility model, comprise shaped as frame box body 1, in described box body 1, be provided with rectifier diode 5 and binding post 3, the welding of rectifier diode 5 adopts Reflow Soldering solder technology to be connected and to be connected with binding post 3, corresponding described rectifier diode 5 bottoms are provided with corresponding heat dissipation base 2, described heat dissipation base 2 is fixedly installed on described rectifier diode 5 bottom margin places, the bottom surface of described heat dissipation base 2 and binding post 3 closely cooperate, and described heat dissipation base 2 is trapezoidal plate; Corresponding described rectifier diode 5 outsides are equipped with corresponding fin 4, and described fin 4 fuses fixing by rivet hot mode and binding post, thereby is fixed on described binding post 3, and fin 4 one sides are connected with corresponding described rectifier diode 5; The rectangle integrated member that described fin 4 is made for pure aluminum alloy, one side of described fin 4 is provided with spill square opening 41, described rectifier diode 5 is positioned at described spill square opening 41, and the outer peripheral face of the heat dissipation base 2 of rectifier diode 5 closely cooperates described in the inner peripheral surface of described spill square opening 41; In described box body 1, be provided with fin 6, described upper fin 6 both sides are fixedly connected with by snap fit with the medial surface of described box body 1, the upper surface of the lower surface of described upper fin 6 and described rectifier diode 5 closely cooperates, described upper fin 6 and be provided with gap between the fin of rectifier diode 5 bottoms, form air convection channel, " protruding " shape plate that described upper fin 6 is made for pure aluminum alloy, the center position of described upper fin bossing is provided with the groove of indent.
In sum, the mounting design of fin has reduced the temperature in box body effectively, has extended the useful life of diode, improved the operating efficiency of terminal box simultaneously, in addition, the frame mode of clamping is convenient to dismounting and maintenance, has ensured persistence and the utilance of terminal box.Adopt after structure of the present utility model, significantly improve the useful life of terminal box, and cost obviously reduces, and heat dispersion is good, is conducive to produce and maintenance.
Claims (2)
1. solar energy photovoltaic assembly junction box, comprise shaped as frame box body, in described box body, be provided with rectifier diode and binding post, it is characterized in that, corresponding described rectifier diode bottom is provided with corresponding heat dissipation base, described heat dissipation base is fixedly installed on described diode bottom margin place, and the bottom surface of described heat dissipation base is fixedly connected with binding post, and described heat dissipation base is trapezoidal plate; Corresponding described rectifier diode outside is equipped with corresponding fin, and described fin is fixed on described binding post, and a side is connected with corresponding described rectifier diode; Described fin is the rectangle integrated member that pure aluminum alloy is made, one side of described fin is provided with spill square opening, described rectifier diode is positioned at described spill square opening, and the outer peripheral face of the heat dissipation base of rectifier diode closely cooperates described in the inner peripheral surface of described spill square opening; In described box body, be provided with fin, described upper fin both sides are fixedly connected with the medial surface of described box body, the lower surface of described upper fin and the upper surface of described rectifier diode closely cooperate, described upper fin and be provided with gap between the fin of rectifier diode bottom, forms air convection channel.
2. solar energy photovoltaic assembly junction box as claimed in claim 1, is characterized in that, described upper fin is " protruding " shape plate that pure aluminum alloy is made, and described upper fin bossing is provided with the groove of indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251744.6U CN203872128U (en) | 2014-05-16 | 2014-05-16 | Novel solar photovoltaic module junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420251744.6U CN203872128U (en) | 2014-05-16 | 2014-05-16 | Novel solar photovoltaic module junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203872128U true CN203872128U (en) | 2014-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420251744.6U Expired - Fee Related CN203872128U (en) | 2014-05-16 | 2014-05-16 | Novel solar photovoltaic module junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203872128U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467656A (en) * | 2014-10-24 | 2015-03-25 | 苏州快可光伏电子股份有限公司 | Photovoltaic module junction box with high heat dissipation performance |
-
2014
- 2014-05-16 CN CN201420251744.6U patent/CN203872128U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467656A (en) * | 2014-10-24 | 2015-03-25 | 苏州快可光伏电子股份有限公司 | Photovoltaic module junction box with high heat dissipation performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |