CN202601657U - Novel photovoltaic conjunction box - Google Patents
Novel photovoltaic conjunction box Download PDFInfo
- Publication number
- CN202601657U CN202601657U CN2012201432136U CN201220143213U CN202601657U CN 202601657 U CN202601657 U CN 202601657U CN 2012201432136 U CN2012201432136 U CN 2012201432136U CN 201220143213 U CN201220143213 U CN 201220143213U CN 202601657 U CN202601657 U CN 202601657U
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- China
- Prior art keywords
- box body
- junction box
- photovoltaic junction
- photovoltaic
- weld tabs
- Prior art date
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Photovoltaic Devices (AREA)
Abstract
A novel photovoltaic conjunction box comprises a box body, the bottom of which is provided with several installing holes. The installing holes are used for accessing photovoltaic assembly bus bars. The novel photovoltaic conjunction box also comprises an aluminum PCB; the aluminum PCB is arranged in the box body; the back side of the aluminum PCB is an aluminum plate; the right side of the aluminum PCB is provided with several bus bar weld tabs and several cable conductor weld tabs; the bus bar weld tabs are corresponding to the positions of installing holes, are connected to a photovoltaic assembly protection circuit and are used for connecting the photovoltaic assembly bus bars; and the cable conductor weld tabs are connected to the photovoltaic assembly protection circuit and are cooperated with cable conductors for connecting external cable conductors. According to the utility model, the novel photovoltaic conjunction box is advantageous in that the structure is simple, the volume is small, the weight is light, installation is simple, sealing performance and heat radiation performance are excellent, the service life is long, and cost is low.
Description
Technical field
The utility model relates to terminal box, relates in particular to a kind of good seal performance, good heat dissipation effect and novel photovoltaic junction box with low cost.
Background technology
Photovoltaic junction box is used to connect photovoltaic module; During use as required; By several photovoltaic junction boxes several photovoltaic modulies are coupled together by the serial or parallel connection mode; And the protection through the inner diode of photovoltaic junction box, guarantee that photovoltaic module can normal power generation under protean weather condition.The structure of existing photovoltaic junction box comprises: box body, be arranged on the box body and the lid that cooperatively interacts with box body, offer between the installing hole of some busbars that can supply to draw from the photovoltaic module back, the circuit board that in box body, is disposed with some connectors or equivalence with it, the connector in the box body bottom and to be provided with diode, on box body, to be provided with wiring hole with the corresponding respectively position of positive and negative connector.During use; Positive and negative cable pierces into terminal box from the wiring hole of correspondence and links to each other with corresponding positive and negative connector respectively; The connector other end links to each other with the positive negative rail of drawing from the assembly back respectively; All the other connectors in the middle of the positive and negative connector also link to each other with corresponding busbar respectively, play the bypass protection effect.Because the operating current of photovoltaic module is big, work under bad environment, length of service are very long, photovoltaic junction box needs excellent waterproof, dustproof, heat radiation and ageing resistace; Simultaneously, the influence that the heat that is distributed in the time of also will reducing photovoltaic junction box work causes photovoltaic module, and the encapsulating structure of photovoltaic junction box has directly determined above-mentioned problems.
Existing photovoltaic junction box packaged type mainly contains two kinds: a kind of is hermetic type, is filled in the effect of playing steam inside and outside the isolated box body, dust between box body and the lid through O-ring seal.The sealing property of this mode depends on the fixing of combination between quality and the box body and the lid of O-ring seal, thus the contradiction that has caused its performance, quality not take into account with cost.And there is the device of many connections, fixed light photovoltaic assembly protective circuit in the box body and makes the photovoltaic junction box whole height, consume material at 20-40mm.A kind of in addition is encapsulation type, realizes sealing effectiveness through the curable sealing glue of perfusion in the photovoltaic junction box box body.This mode sealing property is better, and cost is lower, but does not reduce the fixture of photovoltaic module protective circuit, so the box body height is also at 20-30mm.
In sum, existing photovoltaic junction box exists complex structure, bulky shortcoming, and complicated structure causes its radiating effect poor, and influences sealing property to a certain extent.In addition, big volume is also wasted raw material, has improved production cost.
The utility model content
The purpose of the utility model is to provide a kind of novel photovoltaic junction box, to solve the photovoltaic junction box that exists in the prior art because of complex structure, volume cause greatly that radiating effect is poor, sealing property instability and the high technical problem of cost.
For achieving the above object, the utility model provides a kind of novel photovoltaic junction box, comprises that a bottom offers the box body of some installing holes; Installing hole is used for inserting the photovoltaic module busbar; It also comprises an aluminium base circuit board, and aluminium base circuit board is arranged in the box body, and its back side is an aluminium sheet; The front is provided with the photovoltaic module protective circuit, and aluminium base circuit board front also is provided with some busbar weld tabs and some cable weld tabs, and the busbar weld tabs is corresponding with position of mounting hole, and is connected with the photovoltaic module protective circuit, in order to connect the photovoltaic module busbar; The cable weld tabs is connected with the photovoltaic module protective circuit and is combined with cable to connect the external electric cable.
According to the described novel photovoltaic junction box of the utility model preferred embodiment, this box body front also is provided with the ventilation and heat skylight, and the ventilation and heat skylight is corresponding with aluminium base back of circuit board aluminium sheet.
According to the described novel photovoltaic junction box of the utility model preferred embodiment, this box body adopts the POP injection molding, and aluminium base circuit board is coated in the POP plastics.
According to the described novel photovoltaic junction box of the utility model preferred embodiment, this photovoltaic junction box also comprises a lid, and lid is arranged on the box body busbar installing hole and is connected with installing hole.
According to the described novel photovoltaic junction box of the utility model preferred embodiment, be perfused with fluid sealant in this installing hole in order to sealing.
According to the described novel photovoltaic junction box of the utility model preferred embodiment, the height of this photovoltaic junction box is 10～15mm.
The utility model adopts the fixture of aluminium base circuit board as the photovoltaic module protective circuit; Connection, fixture in the conventional photovoltaic terminal box have been saved; Practiced thrift installing space to the full extent, reduced the volume of photovoltaic junction box, the box body height is merely 10～15mm; Save raw material and needn't use a large amount of expensive sealing glue, greatly reduced cost.Simultaneously, whole photovoltaic junction box is one on the whole, and in box body, has aluminium base to support, and has improved the fastness of terminal box greatly.The packaged type of the photovoltaic junction box employing POP injection mo(u)lding of the utility model is processed and is made photovoltaic junction box have good sealing.And relying on excellent sealing performance, the ventilation and heat skylight that the box body front is offered can directly penetrate into the back side of the aluminium base circuit board in the box body under the prerequisite of guaranteeing photovoltaic junction box integral waterproofing, anti-dust performance.Like this, when photovoltaic module was worked, the heat that can rapidly the diode place be produced was dispersed in the surrounding space via aluminium base circuit board, the positive ventilation ventilation and heat skylight of box body, effectively reduces diode temperature.Simultaneously, this photovoltaic junction box is because of being the one injection moulding, so box body is firm, ageing resistace is outstanding, can guarantee the long-acting use of photovoltaic junction box and photovoltaic module.Therefore, compared with prior art, the utlity model has simple in structure, volume is frivolous, simple installation, sealing property and excellent radiation performance, long service life and advantage with low cost.
Description of drawings
Fig. 1 is the novel photovoltaic junction box Facad structure of a utility model sketch map;
Fig. 2 is the whole structure figure that the novel photovoltaic junction box of the utility model is installed lid;
Fig. 3 is the novel photovoltaic junction box structure of a utility model sketch map;
Fig. 4 is the aluminium base circuit board perspective view of the utility model new embodiment;
Fig. 5 is the novel photovoltaic junction box side view cutaway drawing of the utility model.
1-box body, 11-ventilation and heat skylight, 12-busbar installing hole, 13-mould fixing hole;
The 2-lid;
The aluminium base circuit board of 3-, 31-photovoltaic module protective circuit, 32-aluminium sheet, 33-busbar weld tabs, 34-cable weld tabs;
The 4-cable.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 1 to Fig. 5, a kind of novel photovoltaic junction box comprises that a bottom offers the box body 1 of five installing holes 12; Installing hole 12 usefulness are for inserting the photovoltaic module busbar; It also comprises an aluminium base circuit board 3, and aluminium base circuit board 3 is arranged in the box body 1, and its back side is an aluminium sheet 32; The front is provided with photovoltaic module protective circuit 31; Aluminium base circuit board 3 fronts also are provided with five busbar weld tabs 33 and two cable weld tabs 34; Busbar weld tabs 33 is corresponding with installing hole 12 positions, and is connected with photovoltaic module protective circuit 31, in order to connect the photovoltaic module busbar; Cable weld tabs 34 is connected with photovoltaic module protective circuit 31 and is combined with cable 4 to connect the external electric cable.
Further, like Fig. 1, shown in Figure 2, box body 1 front also is provided with ventilation and heat skylight 11, and ventilation and heat skylight 11 is corresponding with aluminium base circuit board 2 back side aluminium sheets 32.Make the aluminium sheet 32 direct and extraneous UNICOMs in the box body 1 through ventilation and heat skylight 11.It between the front lighting photovoltaic assembly protective circuit 31 of aluminium base circuit board 3 and the back side aluminium sheet 32 mutually insulated but can high-efficiency heat conduction; Through ventilation and heat skylight 11; When the heat that is produced when photovoltaic junction box work is transmitted to aluminium base back of circuit board aluminium sheet 32; Can be dispersed into fast in the middle of the ambient atmosphere, reduce the photovoltaic junction box internal temperature, this has improved the heat dispersion of photovoltaic junction box greatly under the prerequisite of guaranteeing photovoltaic junction box overall sealing performance and insulation property.
Particularly, box body 1 adopts the POP injection molding, and aluminium base circuit board 3 is coated in the POP plastics.
As shown in Figure 2, photovoltaic junction box also comprises a lid 2, and lid 2 is arranged on the box body busbar installing hole 12 and is connected with installing hole 12 snappings.
Need to prove, perfect in the present embodiment for the overall appearance that makes photovoltaic junction box, install a lid 2 additional and be anchored on the busbar installing hole 12.But, need to prove, because the utility model box body 1 adopts the POP injection molding; Aluminium base circuit board 3 is coated in the POP plastics; This just makes photovoltaic junction box have excellent sealing performance and insulation property, installs lid 2 additional and only is in order to reach effect attractive in appearance, therefore; Lid 2 is not essential structure, specifically selects according to the needs of practical application.Simultaneously, lid 2 is connected with busbar installing hole 12 snappings in this instance, yet; The utility model does not limit the concrete connected mode of box body 2 and busbar installing hole 12; For example, it can also adopt the connection that is spirally connected, axle to connect, even anyly in other prior art can realize the two ways of connecting; No matter adopt which kind of connected mode, all should drop in the protection range of the utility model.
Except above-mentioned points, as shown in the figure, in this example, ventilation and heat skylight 11 is designed to rectangle.But, need to prove that the utility model is not limited thereto, for example, circle, quincunx can also be adopted, even corresponding logo shape can also be designed to, can reach attractive in appearance simultaneously and advertising effect.Therefore, more than adopting ventilation and heat skylight 11 to be designed to rectangle is an embodiment, and is not used in qualification the utility model.In addition; Above-mentioned employing box body 1 bottom is provided with five installing holes 12; Five busbar weld tabs 33 are set on the corresponding aluminium base circuit board 3, yet the utility model does not limit the quantity of installing hole 12 and busbar weld tabs 33; The concrete installing hole 12 and the quantity of busbar weld tabs 33 design according to actual needs, only need installing hole 12 to get final product with the quantity of busbar weld tabs 33 is corresponding.
The photovoltaic junction box of said structure, like Fig. 1, Fig. 2 and shown in Figure 5, some busbars of successively the photovoltaic module back side being drawn in use are welded on the busbar weld tabs 33, afterwards fluid sealant are poured in down a chimney in the busbar installing hole 12 to seal this coupling part.Afterwards, perfect for the overall appearance of photovoltaic junction box, can lid 2 be anchored on the busbar installing hole 12.
The photovoltaic junction box of the utility model adopts the mode of POP injection mo(u)lding to encapsulate; During encapsulation; At first, the cable that on special high pressure resistant aluminium base, has welded photovoltaic module protective circuit, busbar weld tabs, cable weld tabs and matched with the cable weld tabs.Secondly; The aluminium base circuit board that welds is placed in the photovoltaic junction box injection mold; And the position of the mould fixing hole of position through attached cable line, the positive ventilation and heat of the corresponding box body of the aluminium base back of circuit board of chucking skylight and the positive corresponding box body of aluminium base circuit board, the fixing position of aluminium base circuit board in mould.And then guarantee that aluminium base circuit board 3 finally can be placed in position correct in the photovoltaic junction box.Afterwards, in the PPO plastics liquid injection moulding progressive die tool with heating and melting, make PPO plastics liquid envelope aluminium base circuit board, and the busbar weld tabs expose through the busbar installing hole groove of reserving on the mould according to Mould design.At last, wait to lower the temperature after the cooling, open mould, take out photovoltaic junction box.
In the preferred embodiment of the utility model, can be placed in position correct in the photovoltaic junction box in order to guarantee aluminium base circuit board 3, evenly distributed and arranged has five points on aluminium base circuit board 3 fronts, correspondingly, is provided with five fixed levers in the mould.During injection moulding, five points on fixed lever and the aluminium base circuit board 3 are tightened each other, after the injection moulding on the box body 1 position of corresponding fixed lever stay mould fixing hole 13, as shown in Figure 3.In addition, the aluminium base back side is directly to push down through the briquetting in heat radiation skylight, after the injection moulding, has just stayed ventilation and heat skylight 11 with aluminium base circuit board 3 back side aluminium sheets 32 corresponding positions on the box body 1.
Like Fig. 1, Fig. 2 and shown in Figure 3; After photovoltaic junction box adopts POP injection mo(u)lding encapsulation; Aluminium base circuit board 3 is hidden in the material of box body 1; Reserve groove one for busbar installing hole 12 simultaneously, busbar and corresponding busbar weld tabs 33 welding that busbar installing hole 12 is drawn in order to realize the photovoltaic module back side.Like this,, and in box body, there is aluminium base to support, improved the fastness of terminal box greatly because of photovoltaic junction box is one on the whole.Simultaneously, because there be not connection, the fixture in the conventional photovoltaic terminal box, the box body height can be controlled in 10-15mm, and needn't use a large amount of expensive sealing glue, reduces cost greatly.
The above; It only is the preferable embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Any content that does not break away from the utility model technical scheme according to any simple modification, equivalent variations and the modification that the technical spirit of the utility model is done above embodiment, all belongs to the scope of the utility model technical scheme.
Claims (6)
1. a novel photovoltaic junction box comprises that a bottom offers the box body of some installing holes, and said installing hole is used for inserting the photovoltaic module busbar; It is characterized in that; Also comprise an aluminium base circuit board, said aluminium base circuit board is arranged in the said box body, and its back side is an aluminium sheet; The front is provided with the photovoltaic module protective circuit; Said aluminium base circuit board front also is provided with some busbar weld tabs and some cable weld tabs; Said busbar weld tabs is corresponding with said position of mounting hole, and is connected with said photovoltaic module protective circuit, in order to connect the photovoltaic module busbar; Said cable weld tabs is connected with said photovoltaic module protective circuit and is combined with cable to connect the external electric cable.
2. novel photovoltaic junction box as claimed in claim 1 is characterized in that, said box body front also is provided with the ventilation and heat skylight, and said ventilation and heat skylight is corresponding with said aluminium base back of circuit board aluminium sheet.
3. novel photovoltaic junction box as claimed in claim 1 is characterized in that, said box body adopts the POP injection molding, and said aluminium base circuit board is coated in the said POP plastics.
4. novel photovoltaic junction box as claimed in claim 1 is characterized in that, also comprises a lid, and said lid is arranged on the box body busbar installing hole and is connected with said installing hole.
5. like claim 1 or 4 described novel photovoltaic junction boxes, it is characterized in that, be perfused with fluid sealant in the said installing hole in order to sealing.
6. novel photovoltaic junction box as claimed in claim 1 is characterized in that, the height of said photovoltaic junction box is 10～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201432136U CN202601657U (en) | 2012-02-24 | 2012-04-06 | Novel photovoltaic conjunction box |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220061774.1 | 2012-02-24 | ||
| CN201220061774 | 2012-02-24 | ||
| CN2012201432136U CN202601657U (en) | 2012-02-24 | 2012-04-06 | Novel photovoltaic conjunction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601657U true CN202601657U (en) | 2012-12-12 |
Family
ID=46773657
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100997533A Pending CN102664202A (en) | 2012-02-24 | 2012-04-06 | Novel photovoltaic junction box and packaging method of novel photovoltaic junction box |
| CN2012201432136U Expired - Fee Related CN202601657U (en) | 2012-02-24 | 2012-04-06 | Novel photovoltaic conjunction box |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100997533A Pending CN102664202A (en) | 2012-02-24 | 2012-04-06 | Novel photovoltaic junction box and packaging method of novel photovoltaic junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102664202A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856414A (en) * | 2012-10-15 | 2013-01-02 | 常熟市福莱德连接器科技有限公司 | Photovoltaic connecting box |
| CN103780202A (en) * | 2014-01-27 | 2014-05-07 | 张家港市天能科技有限公司 | Photovoltaic junction box |
| CN104579158B (en) * | 2015-02-05 | 2016-09-07 | 蒋罕琦 | The processing method of solar electrical energy generation assembly terminal box |
| CN204577425U (en) * | 2015-03-20 | 2015-08-19 | 苏州固锝电子股份有限公司 | Novel photovoltaic bypass integration module |
| CN106685342B (en) * | 2017-03-10 | 2018-06-19 | 江苏通灵电器股份有限公司 | Solar power generation component chip seal pressure formula terminal box and its processing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008022908B4 (en) * | 2008-05-09 | 2014-11-27 | Yamaichi Electronics Deutschland Gmbh | Junction box, uses a junction box and procedures |
| CN201556899U (en) * | 2009-06-05 | 2010-08-18 | 陈新达 | Photovoltaic connection box |
| CN201556630U (en) * | 2009-06-05 | 2010-08-18 | 陈新达 | Photovoltaic connection box |
| CN201450294U (en) * | 2009-07-16 | 2010-05-05 | 宜兴市天勤电子有限公司 | Junction box of solar cell panel |
| CN202145626U (en) * | 2011-07-14 | 2012-02-15 | 江苏九鼎光伏系统有限公司 | Conjunction box used in solar energy cell system |
-
2012
- 2012-04-06 CN CN2012100997533A patent/CN102664202A/en active Pending
- 2012-04-06 CN CN2012201432136U patent/CN202601657U/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN102664202A (en) | 2012-09-12 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20160406 |