CN202473973U - Terminal box for solar cell module - Google Patents

Terminal box for solar cell module Download PDF

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Publication number
CN202473973U
CN202473973U CN2012200378172U CN201220037817U CN202473973U CN 202473973 U CN202473973 U CN 202473973U CN 2012200378172 U CN2012200378172 U CN 2012200378172U CN 201220037817 U CN201220037817 U CN 201220037817U CN 202473973 U CN202473973 U CN 202473973U
Authority
CN
China
Prior art keywords
terminal box
base
diode
loam cake
solar module
Prior art date
Application number
CN2012200378172U
Other languages
Chinese (zh)
Inventor
吕纪坤
Original Assignee
江苏九鼎光伏系统有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏九鼎光伏系统有限公司 filed Critical 江苏九鼎光伏系统有限公司
Priority to CN2012200378172U priority Critical patent/CN202473973U/en
Application granted granted Critical
Publication of CN202473973U publication Critical patent/CN202473973U/en

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Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Abstract

The utility model discloses a terminal box for a solar cell module. The terminal box comprises a base and an upper cover, wherein at least two terminal blocks are arranged in the base; the two adjacent terminal blocks are electrically connected by a diode; heads of metal connecting pieces are connected with module bus bars; the tails of the metal connecting pieces are connected with photovoltaic cables; a clapboard vertical to the terminal blocks is arranged in the middle position of the base; a convex bar is arranged on the inner wall of the upper cover, corresponding to the clapboard; after the base is covered by the upper cover, the convex bar presses the clapboard to separate the interior of the terminal box into a component connecting cabin and a bus bar connecting cabin; the component connecting cabin is arranged below the diode and is provided with a hanging channel communicated with the outside; shutters for ventilation are respectively arranged on the left and right sides of the upper cover; and inner channels of the shutters are communicated with the hanging channel. By adopting the terminal box, such problems of the terminal boxes used by the solar power generation systems at present as poorer overall heat dissipation effect, high own power consumption of the terminal boxes and easy damage of the diodes are solved.

Description

Solar module is used terminal box

Technical field

The utility model relates to a kind of solar module and uses terminal box.

Background technology

At present, the used rubber filling type terminal box of solar power system generally adopts overall time encapsulating mode, the terminal box of this structure on the market; The following defective of ubiquity: at first, down, the diode of enclosure interior can produce a large amount of heat energy to terminal box in working order; Heat conducts to housing through colloid in the housing, and housing passes through conduction again with heat release, but the heat conductivility of plastics is poor; Heat in the housing is enclosed in the box and can not in time discharges; Caused the rapid diffusion of the interior heat of housing and made temperature constantly raise, the operational environment of high temperature makes the energising ability of diode sharply descend, and has reduced the generating efficiency of solar components; Shorten the working life of diode, also increased the frequency of maintenance of assembly; Too high temperature has also been quickened the distortion of housing and has been worn out simultaneously, has shortened the useful life of product; The integral type encapsulating also can increase the cost of solar panel manufacturer; Last diode generally be earlier with being welded on the junction block in the jack that inserts junction block after the bending pins or with pin when mounted, because pin will receive the tension of both sides, destroy the structure of inside chip easily in the process that pin is bent.

The utility model content

The technical problem that the utility model will solve is: overcome the deficiency in the prior art; Provide a kind of solar module to use terminal box, solve the problem that the integral heat sink effect is relatively poor, terminal box self power loss high, diode damages easily that the used terminal box of present solar power system exists.

The utility model solves the technical scheme that its technical problem adopted: a kind of solar module is used terminal box, comprises base and covers the loam cake on base, is provided with two binding posts in the base at least; Electrically connect through diode between adjacent two binding posts; Binding post comprises the metal connecting piece with horizontal inner concave arc surface, and the pin of diode places in the inner concave arc surface, and the metal connecting piece head is connected with component bus bar; The metal connecting piece afterbody is connected with the photovoltaic cable; The base medium position has the dividing plate perpendicular with binding post, has raised line with the dividing plate corresponding section on the loam cake inwall, and loam cake covers after on the base; Raised line is pressed on the dividing plate and terminal box inside to be separated into components and parts to connect the cabin and be connected the cabin with busbar; Components and parts connect freight space to have and the extraneous unsettled passage that communicates in the diode below, and the left and right sides of loam cake is respectively equipped with the shutter that supplies ventilation, and the inner channel of shutter and unsettled passage connect.

Further, described metal connecting piece has at least two inner concave arc surfaces, and the pin of diode is fitted in to weld on the inner concave arc surface and fixes, and corresponding pin position, metal connecting piece both sides has the draw-in groove of chucking pin.

When installing for ease of terminal box with being connected of assembly; Described binding post head has the storage molten tin bath and supplies busbar to insert the rectangular opening of location; The afterbody of binding post has the U-shaped interface that is connected with the punching press of photovoltaic cable, on cover the line ball piece that corresponding U-shaped interface position is provided with fixed light hint cable.

For improving radiating effect better, said base end face is provided with heat dissipating grid with respect to diode location.

The existence of ponding when preventing to use, the grid of described shutter is oblique to be provided with down, forms flow-guiding channel between the grid, and when unsettled passage had ponding, ponding can discharge along the direction of flow-guiding channel under action of gravity like this.

Described base medium position is provided with glue filling opening, and components and parts connect the edge, cabin and are provided with the excessive glue groove that can overflow surplus glue, and the corresponding glue groove position of overflowing of base is provided with inspection hole, is used to observe the perfusion situation of glue.

Cover on described and also be provided with minor flaps, the minor flaps edge has the hasp that is connected with the loam cake assembling.

Described busbar connection edge, cabin is provided with and prevents the overflow glue groove that glue overflows when from minor flaps, pouring into glue.

The beneficial effect of the utility model is: the utility model is through separating terminal box inner heat district with the separation form; And connect at the unsettled passage that loam cake is provided with shutter and diode place heating region; Terminal box inner heat zone is communicated with the external world, realized distributing fast of terminal box internal heat; Adopt face of cylinder contact to be connected between the metal connecting piece of diode and binding post, help improving contact area, reduce contact resistance, thereby integral body has improved the electric energy transmitting efficient of terminal box; The pin of diode without bending the Direct Water placing flat fix, prevented that the structure of diode inside chip from being damaged.

Description of drawings

Below in conjunction with accompanying drawing and execution mode the utility model is further specified.

Fig. 1 is the plan structure sketch map of the utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is a B-B sectional structure sketch map among Fig. 1.

Fig. 4 is a C-C sectional structure sketch map among Fig. 1.

Fig. 5 is the structural representation of looking up of the utility model.

1. bases, 2. loam cakes, 21. raised lines, 22. line ball pieces, 3. binding posts, 31. metal connecting pieces, 32. inner concave arc surfaces, 33. draw-in grooves, 34. storage molten tin baths, 35. rectangular opening 36.U shape interfaces, 4. diodes, 41. pins, 5. dividing plates, 6. components and parts connect cabin 7. busbars and connect cabin 8. unsettled passage 9. shutters 10. heat dissipating grid 11. flow-guiding channels 12. glue filling openings 13. excessive glue groove 14. inspection holes 15. minor flaps 16. hasps 17. overflow glue grooves among the figure

Embodiment

Combine accompanying drawing that the utility model is further described now.The sketch map that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.

Use terminal box like Fig. 1~a kind of solar module shown in Figure 5, comprise base 1 and cover the loam cake 2 on base 1, be provided with four binding posts 3 in the base 1, electrically connect through diode 4 between adjacent two binding posts 3.

Binding post 3 has comprised the metal connecting piece 31 of conductive communication effect, and metal connecting piece 31 heads are used for the coupling assembling busbar, and metal connecting piece 31 afterbodys are used to connect the photovoltaic cable.Metal connecting piece 31 has two inner concave arc surfaces 32, and the pin 41 of diode 4 is glued and placed in to weld in the inner concave arc surface 32 and fixes, and metal connecting piece 31 both sides corresponding pins 41 positions have the draw-in groove 33 of chucking pin 41.

Base 1 medium position has the dividing plate 5 perpendicular with binding post 3; Has raised line 21 with dividing plate 5 corresponding sections on loam cake 2 inwalls; Loam cake 2 covers after on the base 1, and raised line 21 is pressed on the dividing plate 5 and terminal box inside to be separated into components and parts to connect cabin 6 and is connected cabin 7 with busbar, and components and parts connection cabin 6 is positioned at the unsettled passage 8 that diode 4 belows have and the external world communicates; The left and right sides of loam cake 2 is respectively equipped with the shutter 9 that supplies ventilation, and the inner channel of shutter 9 and unsettled passage 8 connect.

When installing for ease of terminal box with solar components between be connected; Described binding post 3 heads have storage molten tin bath 34; Be used to reserve scolding tin, when connecting, conveniently weld with busbar, binding post 3 heads also have the rectangular opening 35 that supplies busbar insertion location simultaneously; The afterbody of binding post 3 has the U-shaped interface 36 that is connected with the punching press of photovoltaic cable, and corresponding U-shaped interface 36 positions are provided with the line ball piece 22 of fixed light hint cable on the loam cake 1.

Be provided with heat dissipating grid 10 in base 1 bottom surface with respect to diode 4 positions, through these heat dissipating grid 10, the generation heat in the time of can leaving diode operation quickly improves radiating effect better,

It is oblique towards the lower direction setting that the grid of described shutter 9 is; Form flow-guiding channel 11 between the grid; When in unsettled passage 8, having ponding like this; Ponding can discharge along the direction of flow-guiding channel 11 under action of gravity, and terminal box inside receives rain drop erosion and causes ponding when having prevented use.

The substep sealing means is adopted in the sealing of this terminal box, and components and parts connect cabin 5 elder generation's sealant pouring and sealing when terminal box is produced, and busbar connects cabin 7 and is installed on assembly welding back sealant pouring and sealing in terminal box.

In order to realize the sealing of terminal box; Described base 1 medium position is provided with glue filling opening 12, and components and parts connect 6 edges, cabin and are provided with the excessive glue groove 13 that can overflow surplus glue, when sealing glue injects from glue filling opening 12; Surplus glue can flow in the glue groove 13 that overflows after reaching design height; Guarantee the accurate of encapsulating height, corresponding glue groove 13 positions of overflowing are provided with inspection hole 14 on the base 1, are used to observe the perfusion situation of glue.

Also be provided with minor flaps 15 on the described loam cake 2, minor flaps 15 edges have the hasp 16 that is connected with loam cake 2 assemblings, and busbar connection 7 edges, cabin are provided with and prevent the overflow glue groove 17 that glue overflows when from minor flaps 15, pouring into glue.After binding post 3 and busbar welded well, from minor flaps 15 encapsulating in busbar connects cabin 7, behind the arrival design height, surplus glue can flow in the overflow glue groove 17, has guaranteed the height of encapsulating when sealing glue injects.

After the utility model adopts said structure, solved the problem that the integral heat sink effect is relatively poor, terminal box self power loss high, diode damages easily that the used terminal box of present solar power system exists effectively.

Above-mentioned execution mode is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage that is familiar with this technology can understand the content of the utility model and implements; Can not limit the protection range of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection range of the utility model.

Claims (8)

1. a solar module is used terminal box; Comprise base (1) and cover the loam cake (2) on base (1); At least be provided with two binding posts (3) in the base (1), electrically connect through diode (4) between adjacent two binding posts (3), binding post (3) comprises the metal connecting piece (31) with horizontal inner concave arc surface (32); The pin (41) of diode (4) places in the inner concave arc surface (32); Metal connecting piece (31) head is connected with component bus bar, and metal connecting piece (31) afterbody is connected with the photovoltaic cable, it is characterized in that: base (1) medium position has and the perpendicular dividing plate (5) of binding post (3); Has raised line (21) with dividing plate (5) corresponding section on loam cake (2) inwall; Loam cake (2) covers after base (1) is gone up, and raised line (21) is pressed on dividing plate (5) and goes up and terminal box inside is separated into components and parts connects cabins (6) and is connected cabin (7) with busbar, and components and parts connect cabins (6) and are positioned at and have below the diode (4) and unsettled passage (8) that the external world communicates; The left and right sides of loam cake (2) is respectively equipped with the shutter (9) that supplies ventilation, and the inner channel of shutter (9) and unsettled passage (8) connect.
2. solar module according to claim 1 is used terminal box; It is characterized in that: described metal connecting piece (31) has at least two inner concave arc surfaces (32); The pin (41) of diode (4) is fitted in inner concave arc surface (32), and upward welding is fixing, and metal connecting piece (31) both sides corresponding pins (41) position has the draw-in groove (33) of chucking pin (41).
3. solar module according to claim 1 is used terminal box; It is characterized in that: described binding post (3) head has storage molten tin bath (34) and supplies busbar to insert the rectangular opening (35) of location; The afterbody of binding post (3) has the U-shaped interface (36) that is connected with the punching press of photovoltaic cable, and loam cake (2) is gone up the line ball piece (22) that corresponding U-shaped interface (36) position is provided with fixed light hint cable.
4. solar module according to claim 1 is used terminal box, it is characterized in that: described base (1) bottom surface is provided with heat dissipating grid (10) with respect to diode (4) position.
5. solar module according to claim 1 is used terminal box, it is characterized in that: the grid of described shutter (9) is oblique to be provided with down, forms flow-guiding channel (11) between the grid.
6. solar module according to claim 1 is used terminal box; It is characterized in that: described base (1) medium position is provided with glue filling opening (12); Components and parts connect edge, cabin (6) and are provided with the excessive glue groove (13) that can overflow surplus glue, and corresponding glue groove (13) position of overflowing of base (1) is provided with inspection hole (14).
7. solar module according to claim 1 is used terminal box, it is characterized in that: also be provided with minor flaps (15) on the described loam cake (2), minor flaps (15) edge has the hasp (16) that is connected with loam cake (2) assembling.
8. solar module according to claim 7 is used terminal box, it is characterized in that: described busbar connection edge, cabin (7) is provided with and prevents the overflow glue groove (17) that glue overflows when from minor flaps (15), pouring into glue.
CN2012200378172U 2012-02-07 2012-02-07 Terminal box for solar cell module CN202473973U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200378172U CN202473973U (en) 2012-02-07 2012-02-07 Terminal box for solar cell module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200378172U CN202473973U (en) 2012-02-07 2012-02-07 Terminal box for solar cell module

Publications (1)

Publication Number Publication Date
CN202473973U true CN202473973U (en) 2012-10-03

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ID=46922115

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200378172U CN202473973U (en) 2012-02-07 2012-02-07 Terminal box for solar cell module

Country Status (1)

Country Link
CN (1) CN202473973U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104092435A (en) * 2014-07-25 2014-10-08 朱彩玲 Junction box bringing easiness to radiating
CN105207609A (en) * 2015-03-13 2015-12-30 常州天合光能有限公司 Ventilation and heat dissipation intelligent junction box
CN105281659A (en) * 2015-03-12 2016-01-27 常州天合光能有限公司 Heat dissipating type smart junction box
CN105429590A (en) * 2015-12-25 2016-03-23 江苏云之尚节能科技有限公司 Fully glue-poured photovoltaic special junction box with diode integration module as movement
CN105515520A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Solar conjunction box
CN105515522A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Glue pouring solar junction box
CN105515521A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Modular solar conjunction box
WO2017117737A1 (en) * 2016-01-06 2017-07-13 莱尼电气线缆(中国)有限公司 Solar junction box
CN107666280A (en) * 2016-07-29 2018-02-06 上迈(上海)新能源科技有限公司 A kind of photovoltaic module and terminal box of the connection of side circuit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104092435A (en) * 2014-07-25 2014-10-08 朱彩玲 Junction box bringing easiness to radiating
CN105281659A (en) * 2015-03-12 2016-01-27 常州天合光能有限公司 Heat dissipating type smart junction box
CN105207609A (en) * 2015-03-13 2015-12-30 常州天合光能有限公司 Ventilation and heat dissipation intelligent junction box
CN105207609B (en) * 2015-03-13 2018-05-15 天合光能股份有限公司 A kind of intelligent wiring box of ventilation and heat
CN105429590A (en) * 2015-12-25 2016-03-23 江苏云之尚节能科技有限公司 Fully glue-poured photovoltaic special junction box with diode integration module as movement
CN105515520A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Solar conjunction box
CN105515522A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Glue pouring solar junction box
CN105515521A (en) * 2016-01-06 2016-04-20 莱尼电气线缆(中国)有限公司 Modular solar conjunction box
WO2017117737A1 (en) * 2016-01-06 2017-07-13 莱尼电气线缆(中国)有限公司 Solar junction box
US10355638B2 (en) 2016-01-06 2019-07-16 LEONI Cable (China) Co., Ltd. Solar junction box
CN107666280A (en) * 2016-07-29 2018-02-06 上迈(上海)新能源科技有限公司 A kind of photovoltaic module and terminal box of the connection of side circuit

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121003

Termination date: 20190207

CF01 Termination of patent right due to non-payment of annual fee