CN103413852A - Solar junction box of clamp-welded terminal structure - Google Patents

Solar junction box of clamp-welded terminal structure Download PDF

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Publication number
CN103413852A
CN103413852A CN2013103601123A CN201310360112A CN103413852A CN 103413852 A CN103413852 A CN 103413852A CN 2013103601123 A CN2013103601123 A CN 2013103601123A CN 201310360112 A CN201310360112 A CN 201310360112A CN 103413852 A CN103413852 A CN 103413852A
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China
Prior art keywords
connector
hole clipping
card column
base plate
flanging
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Granted
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CN2013103601123A
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CN103413852B (en
Inventor
郭助淼
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Amphenol Technology Shenzhen Co Ltd
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Amphenol Technology Shenzhen Co Ltd
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    • 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

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Abstract

The invention provides a solar junction box of a clamp-welded terminal structure. The solar junction box of the clamp-welded terminal structure comprises a body, a bottom plate fixedly installed at the bottom of the body, a positive pole connector and a negative pole connector, wherein the positive pole connector and the negative pole connector are installed at the rear end of the body. A conductive terminal is fixedly installed on the bottom plate and comprises a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece. According to the solar junction box of the clamp-welded terminal structure, the conductive terminal is installed on the bottom plate, a bus groove is defined by the bending edges and elastic pieces arranged at the front ends of all the connecting pieces of the conductive terminal to fixedly clamp a bus bar, and the structure effectively avoids the problem that the elastic pieces are prone to fatigue and deformation and ensures the stability of the connection between the bus bar and the conductive terminal. Meanwhile, pin clamping pieces used for clamping diodes are arranged between all the connecting pieces, the diodes can be effectively fixed through the pin clamping pieces, and thus the service life shortening problem of a product caused by a short circuit or an open circuit of the diodes is avoided.

Description

The solar junction box of card welding end minor structure
Technical field
The present invention relates to solar junction box, what be specifically related to is a kind of solar junction box that blocks the welding end minor structure.
Background technology
The photovoltaic solar terminal box is used for connecting solar module, during use, by several photovoltaic solar terminal boxes, several solar modules is cascaded as required.
Existing photovoltaic solar junction box structure comprises: box body, the lid that is arranged on box body and cooperatively interacts with box body, in the box body bottom, being provided with can be for the installing hole of the positive busbar of drawing from the solar module bottom and negative rail access, in box body, be disposed with some connectors, between connector, be provided with diode, be arranged on the box body of two connector correspondence positions on the two ends, left and right and be respectively arranged with wiring hole.During use, cable passes above-mentioned wiring hole and two connector welding, and the other end of connector welds with positive busbar and negative rail respectively, and positive busbar and negative rail are connected on the photovoltaic solar crystal silicon plate.
Because current solar junction box interconnecting piece is all independent terminals mostly, it adopts the mode of extruding, crimping or welding that diode is connected with conducting terminal usually, yet adopt extruding, crimping mode easily to cause the contact resistance of diode and conducting terminal excessive, and the easy fatigue deformation of shell fragment of connector under the long-term work environment, thereby lose connection function, cause impedance excessive and make the terminal box temperature rise sharply increase, the harm solar components, even burn whole photovoltaic plant; Adopt general welding manner, temperature is controlled and weld job flow process uncontrollable easily causes the diode short circuit, opens circuit and forward voltage drop rises or reverse leakage current is excessive, thereby affects the power output of photovoltaic module, reduction useful life.
Summary of the invention
For this reason, the object of the present invention is to provide a kind of solar junction box that blocks the welding end minor structure, to solve current solar junction box, adopt the mode of extruding, crimping or welding that diode is connected with conducting terminal, there is the easy fatigue deformation of shell fragment of connector, lose connection function and diode short circuit, open circuit and cause the problem reduced in product useful life.
The objective of the invention is to be achieved through the following technical solutions.
A kind of solar junction box that blocks the welding end minor structure, comprise: main body (10), be fixedly mounted on the base plate (20) of main body (10) bottom, and the anodal connector (40) and the negative pole connector (41) that are arranged on main body (10) rear end, wherein:
Described base plate (20) front end is provided with the first hole clipping (21), the second hole clipping (22), the 3rd hole clipping (23) and the 4th hole clipping (24) arranged side by side parallel to each other, and base plate rear end is provided with base plate electrode cable groove (25) and base plate negative pole cable trough (26); Rear side in upper the first hole clipping of base plate (20) (21) is disposed with fixedly card column (212) of the first location card column (211) and first; Rear side in upper the second hole clipping of base plate (20) (22) is disposed with fixedly card column (222) of the second location card column (221) and second; Rear side in upper the 3rd hole clipping (23) of base plate (20) is disposed with fixedly card column (232) of the 3rd location card column (231) and the 3rd; Rear side in upper the 4th hole clipping (24) of base plate (20) is disposed with fixedly card column (242) of the 4th location card column (241) and the 4th;
On described base plate (20), be installed with a conducting terminal (30), described conducting terminal (30) comprising: the first connector (31), the second connector (32), the 3rd connector (33) and the 4th connector (34);
Described the first connector (31) front end is provided with the first flanging (311), on described the first flanging (311), be provided with the first elastic component (312), described the first flanging (311) and the first elastic component (312) correspondence are arranged in the first hole clipping (21), and are formed with the first collecting tray (313) for the holding busbar between the first flanging (311) and the first elastic component (312); The centre of the first connector (31) is disposed with fixedly hole clipping (315) of the first standing block hole (314) and first, described the first standing block hole (314) is upper for being stuck in described the first location card column (211), described first fixedly hole clipping (315) correspondence be stuck in described first fixedly on card column (212); The rear end of described the first connector (31) is provided with the first U-shaped connecting groove (316), and described the first U-shaped connecting groove (316) correspondence is placed in base plate electrode cable groove (25); At the first U-shaped connecting groove (316) and first, fixedly between hole clipping (315), be welded with the first diode (50), on described the first diode (50), be provided with the first pin (51);
Described the second connector (32) front end is provided with the second flanging (321), on described the second flanging (321), be provided with the second elastic component (322), described the second flanging (321) and have the second elastic component (322) correspondence to be arranged in the second hole clipping (22), and be formed with the second collecting tray (323) for the holding busbar between the second flanging (321) and the second elastic component (322); The centre of the second connector (32) is disposed with fixedly hole clipping (325) of the second standing block hole (324) and second, and fixedly be respectively arranged with the first baffle plate (326) and second baffle (327) in the both sides between hole clipping (325) at the second standing block hole (324) and second, described the second standing block hole (324) is upper for being stuck in described the second location card column (221), described second fixedly hole clipping (325) correspondence be stuck in second fixedly on card column (222); Described second baffle (327) rear end is provided with the first pin fastener (328), and described the second connector (32) is stuck in the first pin fastener (328) and is connected with described the first connector (31) by the first pin (51) correspondence;
Described the 3rd connector (33) front end is provided with the 3rd flanging (331), on described the 3rd flanging (331), be provided with the 3rd elastic component (332), described the 3rd flanging (331) and the 3rd elastic component (332) be for being arranged in the 3rd hole clipping (23), and be formed with the 3rd collecting tray (333) for the holding busbar between the 3rd flanging (331) and the 3rd elastic component (332); In the middle of the 3rd connector (33), be disposed with fixedly hole clipping (335) of the 3rd standing block hole (334) and the 3rd, it is upper that described the 3rd standing block hole (334) correspondence is stuck in the 3rd location card column (231), the 3rd fixedly hole clipping (335) correspondence be stuck in the 3rd fixedly on card column (232); Described the 3rd connector (33) rear end one side is provided with the 3rd baffle plate (336), the 4th baffle plate (337), and be provided with the second diode (52) between the 3rd baffle plate (336), the 4th baffle plate (337), on described the second diode (52), be provided with the second pin (53), connecting pin fastener (338) in the middle of the opposite side of the 3rd connector (33) rear end is provided with, connecting pin (54) in the middle of being equipped with on connecting pin fastener (338) in the middle of described, and the 3rd connector (33) is connected with the second connector (32) by middle connecting pin (54);
The front end of described the 4th connector (34) is provided with Fourth Fold (341), on described Fourth Fold (341), be provided with the 4th elastic component (342), described Fourth Fold (341) and the 4th elastic component (342) correspondence are arranged in the 4th hole clipping (24), and are formed with the 4th collecting tray (343) for the holding busbar between Fourth Fold (341) and the 4th elastic component (342); The centre of the 4th connector (34) is disposed with the 4th standing block hole (344), the 4th fixedly hole clipping (345) and the second pin fastener (346), described the 4th standing block hole (344) correspondence is stuck in the 4th location card column (241), the described the 4th fixedly hole clipping (345) correspondence be stuck in the 4th fixedly in card column (242); In the second pin fastener (346), be equipped with second pin (53) of the second diode (52), described the 4th connector (34) is connected with the 3rd connector (33) by the second pin (53); The rear end of the 4th connector (34) also is provided with the second U-shaped connecting groove (347), and described the second U-shaped connecting groove (347) correspondence is placed in base plate negative pole cable trough (26).
Preferably, described main body (10) front end is provided with a perforate (11) that runs through main body (10), described perforate (11) top is provided with a cover plate (12), and described cover plate (12) is sealed in perforate (11) by sealing ring (13); The below of described perforate (11) is equipped be used to connecting the busbar of solar panel.
Preferably, described main body (10) both sides respectively are provided with a draw-in groove (14), and described cover plate (12) both sides are provided with the buckle (121) with the corresponding engaging of described draw-in groove (14).
Preferably, described main body (10) both sides, rear end are respectively arranged with main body electrode cable groove (15) and main body negative pole cable trough (16), and main body electrode cable groove (15) is combined to form the wire casing for fixing anodal connector (40) cable with base plate electrode cable groove (25); Main body negative pole cable trough (16) and base plate negative pole cable trough (26) are combined to form for the fixing wire casing of negative pole connector (41) cable.
Preferably, described anodal connector (40) cable is electrically connected to the first U-shaped connecting groove (316) terminal; Described negative pole connector (41) cable is electrically connected to the second U-shaped connecting groove (347) terminal.
The present invention compared with prior art, beneficial effect is: the solar junction box of card welding end minor structure provided by the invention, conducting terminal is installed on base plate, utilize flanging and the elastic component that each connector front end of conducting terminal arranges to form collecting tray, by the fixing chucking of busbar, this structure has effectively been avoided the problem of the easy fatigue deformation of elastic component, has guaranteed the stability that busbar is connected with conducting terminal; Between each connector, be provided with simultaneously the pin fastener for the holding diode, realized effectively fixing to diode by the pin fastener, avoided the diode short circuit, opened circuit and the problem that causes product to reduce useful life.
The accompanying drawing explanation
Fig. 1 is the positive perspective view of solar junction box of the present invention;
Fig. 2 is the back side perspective view of solar junction box of the present invention;
Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention;
Fig. 4 is the base arrangement schematic diagram of solar junction box of the present invention;
Fig. 5 is solar junction box conducting terminal of the present invention and diode package assembly schematic diagram;
Fig. 6 is the structural representation of the first connector in solar junction box conducting terminal of the present invention;
Fig. 7 is the structural representation of the second connector in solar junction box conducting terminal of the present invention;
Fig. 8 is the structural representation of the 3rd connector in solar junction box conducting terminal of the present invention;
Fig. 9 is the structural representation of the 4th connector in solar junction box conducting terminal of the present invention;
Figure 10 is that solar junction box conducting terminal of the present invention is arranged on the structural representation on base plate.
Identifier declaration in figure: main body 10, perforate 11, cover plate 12, buckle 121, sealing ring 13, draw-in groove 14, main body electrode cable groove 15, main body negative pole cable trough 16, base plate 20, the first hole clipping 21, the first location card column 211, the first fixing card column 212, the second hole clipping 22, the second location card column 221, the second fixing card column 222, the 3rd hole clipping 23, the 3rd location card column 231, the 3rd fixing card column 232, the 4th hole clipping 24, the 4th location card column 241, the 4th fixing card column 242, base plate electrode cable groove 25, base plate negative pole cable trough 26, conducting terminal 30, the first connector 31, the first flanging 311, the first elastic component 312, the first collecting tray 313, the first standing block hole 314, the first fixing hole clipping 315, the first U-shaped connecting groove 316, the second connector 32, the second flanging 321, the second elastic component 322, the second collecting tray 323, the second standing block hole 324, the second fixing hole clipping 325, the first baffle plate 326, second baffle 327, the first pin fastener 328, the 3rd connector 33, the 3rd flanging 331, the 3rd elastic component 332, the 3rd collecting tray 333, the 3rd standing block hole 334, the 3rd fixing hole clipping 335, the 3rd baffle plate 336, the 4th baffle plate 337, middle connecting pin fastener 338, the 4th connector 34, Fourth Fold 341, the 4th elastic component 342, the 4th collecting tray 343, the 4th standing block hole 344, the 4th fixing hole clipping 345, the second pin fastener 346, the second U-shaped connecting groove 347, anodal connector 40, negative pole connector 41, the first diode 50, the first pin 51, the second diode 52, the second pin 53, middle connecting pin 54.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Refer to Fig. 1, Fig. 2, shown in Figure 3, Fig. 1 is the positive perspective view of solar junction box of the present invention; Fig. 2 is the back side perspective view of solar junction box of the present invention; Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention.The present invention is to provide a kind of solar junction box that blocks the welding end minor structure, it is mainly used in solving current solar junction box interconnecting piece and adopts the mode of extruding, crimping or welding to have the easy fatigue deformation of connector shell fragment, lose connection function and diode short circuit, opening circuit easily affect the power output of photovoltaic module, the problem in reduction useful life.
Solar junction box of the present invention wherein, include main body 10, base plate 20 and anodal connector 40, negative pole connector 41, base plate 20 is fixedly mounted on the bottom rear side of main body 10, the front end of main body 10 is provided with a circular openings 11, this perforate 11 runs through the front end of whole main body 10, is provided with draw-in groove 14 in the both sides of perforate 11; The top of perforate 11 is provided with a cover plate 12, between cover plate 12 and perforate 11, also is provided with a sealing ring 13; In the both sides of cover plate 12, be provided with the buckle 121 corresponding with described draw-in groove 14 positions, be stuck in draw-in groove 14 by described buckle 121 correspondences, can realize the sealing to main body 10 upper front end perforates 11.
Main body 10 front end bottom perforate 11 unsealings, so that connected the busbar of solar panel, can enter in solar junction box from bottom opening, is connected with conducting terminal.
The both sides, rear end of main body 10 are respectively arranged with main body electrode cable groove 15 and main body negative pole cable trough 16, corresponding both sides, the rear end at base plate 20 are provided with base plate electrode cable groove 25, base plate negative pole cable trough 26, and main body electrode cable groove 15 and base plate electrode cable groove 25 wire casing that is formed for fixing anodal connector 40 cables capable of being combined; Main body negative pole cable trough 16 and the base plate negative pole cable trough 26 fixedly wire casing of negative pole connector 41 cables that is formed for capable of being combined.
As shown in Figure 3, Figure 4, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 4 is the base arrangement schematic diagram of solar junction box of the present invention.Wherein said base plate 20 is fixedly mounted on main body 10 bottoms by screw, and front end is perforate 11, and rear end makes main body negative pole cable trough 16 and base plate negative pole cable trough 26, main body electrode cable groove 15 and base plate electrode cable groove 25 aligned in position.
The present embodiment is provided with the first hole clipping 21, the second hole clipping 22, the 3rd hole clipping 23 and the 4th hole clipping 24 arranged side by side parallel to each other at the front end of base plate 20, in the rear end of base plate 20, is provided with base plate electrode cable groove 25 and base plate negative pole cable trough 26; The rear side of the first hole clipping 21 is disposed with fixedly card column 212 of the first location card column 211 and first on base plate 20; The rear side of the second hole clipping 22 is disposed with fixedly card column 222 of the second location card column 221 and second on base plate 20; The rear side of the 3rd hole clipping 23 is disposed with fixedly card column 232 of the 3rd location card column 231 and the 3rd on base plate 20; The rear side of the 4th hole clipping 24 is disposed with fixedly card column 242 of the 4th location card column 241 and the 4th on base plate 20.
As Fig. 3, shown in Figure 5, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 5 is solar junction box conducting terminal of the present invention and diode package assembly schematic diagram.On base plate 20, be installed with conducting terminal 30, described conducting terminal 30 comprises: the first connector 31, the second connector 32, the 3rd connector 33 and the 4th connector 34.
Wherein on the first connector 31, be welded with the first diode 50, the first pin 51 correspondences of described the first diode 50 are connected with the second connector 32; And connecting pin 54 in the middle of being welded with on the second connector 32 is connected with the 3rd connector 33 by this centre connecting pin 54; On the 3rd connector 33, be welded with the second diode 52, the second pin 53 correspondences of described the second diode 52 are connected to the 4th connector 34.
As Fig. 3, shown in Figure 6, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 6 is the structural representation of the first connector in solar junction box conducting terminal of the present invention.Wherein the first connector 31 front ends are provided with the first flanging 311, on described the first flanging 311, be provided with the first elastic component 312, described the first flanging 311 and the first elastic component 312 correspondences are arranged in the first hole clipping 21, and are formed with the first collecting tray 313 for the holding busbar between the first flanging 311 and the first elastic component 312; The centre of the first connector 31 is disposed with fixedly hole clipping 315 of the first standing block hole 314 and first, described the first standing block hole 314 is for being stuck on described the first location card column 211, described first fixedly hole clipping 315 correspondences be stuck in described first fixedly on card column 212; The rear end of described the first connector 31 is provided with the first U-shaped connecting groove 316, and described the first U-shaped connecting groove 316 correspondences are placed in base plate electrode cable groove 25; At the first U-shaped connecting groove 316 and first, fixedly between hole clipping 315, be welded with the first diode 50, be provided with the first pin 51 on described the first diode 50.
As Fig. 3, shown in Figure 7, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 7 is the structural representation of the second connector in solar junction box conducting terminal of the present invention.Wherein the second connector 32 front ends are provided with the second flanging 321, on described the second flanging 321, be provided with the second elastic component 322, described the second flanging 321 and have the second elastic component 322 correspondences to be arranged in the second hole clipping 22, and be formed with the second collecting tray 323 for the holding busbar between the second flanging 321 and the second elastic component 322; The centre of the second connector 32 is disposed with fixedly hole clipping 325 of the second standing block hole 324 and second, and fixedly be respectively arranged with the first baffle plate 326 and second baffle 327 in the both sides between hole clipping 325 at the second standing block hole 324 and second, described the second standing block hole 324 is for being stuck on described the second location card column 221, described second fixedly hole clipping 325 correspondences be stuck in second fixedly on card column 222; Described second baffle 327 rear ends are provided with the first pin fastener 328, and described the second connector 32 is stuck in the first pin fastener 328 and is connected with described the first connector 31 by the first pin 51 correspondences.
As Fig. 3, shown in Figure 8, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 8 is the structural representation of the 3rd connector in solar junction box conducting terminal of the present invention.Wherein the 3rd connector 33 front ends are provided with the 3rd flanging 331, on described the 3rd flanging 331, be provided with the 3rd elastic component 332, described the 3rd flanging 331 and the 3rd elastic component 332 be for being arranged in the 3rd hole clipping 23, and be formed with the 3rd collecting tray 333 for the holding busbar between the 3rd flanging 331 and the 3rd elastic component 332; In the middle of the 3rd connector 33, be disposed with fixedly hole clipping 335 of the 3rd standing block hole 334 and the 3rd, described the 3rd standing block hole 334 correspondences are stuck in the 3rd and locate on card column 231, the 3rd fixedly hole clipping 335 correspondences be stuck in the 3rd fixedly on card column 232; Described the 3rd connector 33 rear end one sides are provided with the 3rd baffle plate 336, the 4th baffle plate 337, and be provided with the second diode 52 between the 3rd baffle plate 336, the 4th baffle plate 337, on described the second diode 52, be provided with the second pin 53, connecting pin fastener 338 in the middle of the opposite side of the 3rd connector 33 rear ends is provided with, connecting pin 54 in the middle of being equipped with on connecting pin fastener 338 in the middle of described, and the 3rd connector 33 is connected with the second connector 32 by middle connecting pin 54.
As Fig. 3, shown in Figure 9, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 9 is the structural representation of the 4th connector in solar junction box conducting terminal of the present invention.Wherein the front end of the 4th connector 34 is provided with Fourth Fold 341, on described Fourth Fold 341, be provided with the 4th elastic component 342, described Fourth Fold 341 and the 4th elastic component 342 correspondences are arranged in the 4th hole clipping 24, and are formed with the 4th collecting tray 343 for the holding busbar between Fourth Fold 341 and the 4th elastic component 342; The centre of the 4th connector 34 is disposed with the 4th standing block hole 344, the 4th fixedly hole clipping 345 and the second pin fastener 346, described the 4th standing block hole 344 correspondences are stuck in the 4th location card column 241, the described the 4th fixedly hole clipping 345 correspondences be stuck in the 4th fixedly in card column 242; In the second pin fastener 346, be equipped with the second pin 53 of the second diode 52, described the 4th connector 34 is connected with the 3rd connector 33 by the second pin 53; The rear end of the 4th connector 34 also is provided with the second U-shaped connecting groove 347, and described the second U-shaped connecting groove 347 correspondences are placed in base plate negative pole cable trough 26.
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 10, Fig. 3 is the decomposition texture schematic diagram of solar junction box of the present invention; Fig. 4 is the base arrangement schematic diagram of solar junction box of the present invention; Fig. 5 is solar junction box conducting terminal of the present invention and diode package assembly schematic diagram; Figure 10 is that solar junction box conducting end of the present invention is in the structural representation be arranged on base plate.Wherein by the first connector 31, the second connector 32, the conducting terminal 30 that the 3rd connector 33 and the 4th connector 34 form, between the first connector 31 and the second connector 32, be connected by the first diode 50, between the 3rd connector 33 and the 4th connector 34, connect by the second diode 52, and corresponding first hole clipping 21 of passing through, the first location card column 211 and first fixedly card column 212 correspondences is fixed on the first connector 31 on base plate 20, by the second hole clipping 22, the second location card column 221 and second fixedly card column 222 correspondences is fixed on the second connector 32 on base plate 20, by the 3rd hole clipping 23, the 3rd location card column 231 and the 3rd fixedly card column 232 correspondences is fixed on the 3rd connector 33 on base plate 20, by the 4th hole clipping 24, the 4th location card column 241 and the 4th fixedly card column 242 correspondences is fixed on the 4th connector 34 on base plate 20.
Anodal connector 40 front end cable correspondences are passed base plate electrode cable groove 25, and are connected with the first U-shaped connecting groove 316 terminals of the first connector 31 rear ends, thereby are electrically connected to the first connector 31; Negative pole connector 41 front end cable correspondences are passed base plate negative pole cable trough 26, and are connected with the second U-shaped connecting groove 347 terminals of the rear end of the 4th connector 34, thereby are electrically connected to the 4th connector 34.
In sum, the present invention utilizes flanging and the elastic component that each connector front end of conducting terminal arranges to form collecting tray, for busbar is fixed to chucking; And by the pin fastener, realize electrical connection each other between each connector, the present invention has avoided extruding, crimping mode easily to cause the contact resistance of diode and conducting terminal excessive, and the easy fatigue deformation of the shell fragment of connector, thereby lose the problem of connection function; And avoided welding manner, temperature is controlled and weld job flow process uncontrollable easily causes the diode short circuit, opens circuit and forward voltage drop rises or reverse leakage current is excessive, thereby affects the power output of photovoltaic module, the problem in reduction useful life.The present invention has guaranteed the stability that busbar is connected with conducting terminal; By the pin fastener, realized effectively fixing to diode simultaneously, avoided the diode short circuit, opened circuit and the problem that causes product to reduce useful life.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (5)

1. solar junction box that blocks the welding end minor structure, comprise: main body (10), be fixedly mounted on the base plate (20) of main body (10) bottom, and the anodal connector (40) and the negative pole connector (41) that are arranged on main body (10) rear end, it is characterized in that:
Described base plate (20) front end is provided with the first hole clipping (21), the second hole clipping (22), the 3rd hole clipping (23) and the 4th hole clipping (24) arranged side by side parallel to each other, and base plate rear end is provided with base plate electrode cable groove (25) and base plate negative pole cable trough (26); Rear side in upper the first hole clipping of base plate (20) (21) is disposed with fixedly card column (212) of the first location card column (211) and first; Rear side in upper the second hole clipping of base plate (20) (22) is disposed with fixedly card column (222) of the second location card column (221) and second; Rear side in upper the 3rd hole clipping (23) of base plate (20) is disposed with fixedly card column (232) of the 3rd location card column (231) and the 3rd; Rear side in upper the 4th hole clipping (24) of base plate (20) is disposed with fixedly card column (242) of the 4th location card column (241) and the 4th;
On described base plate (20), be installed with a conducting terminal (30), described conducting terminal (30) comprising: the first connector (31), the second connector (32), the 3rd connector (33) and the 4th connector (34);
Described the first connector (31) front end is provided with the first flanging (311), on described the first flanging (311), be provided with the first elastic component (312), described the first flanging (311) and the first elastic component (312) correspondence are arranged in the first hole clipping (21), and are formed with the first collecting tray (313) for the holding busbar between the first flanging (311) and the first elastic component (312); The centre of the first connector (31) is disposed with fixedly hole clipping (315) of the first standing block hole (314) and first, described the first standing block hole (314) is upper for being stuck in described the first location card column (211), described first fixedly hole clipping (315) correspondence be stuck in described first fixedly on card column (212); The rear end of described the first connector (31) is provided with the first U-shaped connecting groove (316), and described the first U-shaped connecting groove (316) correspondence is placed in base plate electrode cable groove (25); At the first U-shaped connecting groove (316) and first, fixedly between hole clipping (315), be welded with the first diode (50), on described the first diode (50), be provided with the first pin (51);
Described the second connector (32) front end is provided with the second flanging (321), on described the second flanging (321), be provided with the second elastic component (322), described the second flanging (321) and have the second elastic component (322) correspondence to be arranged in the second hole clipping (22), and be formed with the second collecting tray (323) for the holding busbar between the second flanging (321) and the second elastic component (322); The centre of the second connector (32) is disposed with fixedly hole clipping (325) of the second standing block hole (324) and second, and fixedly be respectively arranged with the first baffle plate (326) and second baffle (327) in the both sides between hole clipping (325) at the second standing block hole (324) and second, described the second standing block hole (324) is upper for being stuck in described the second location card column (221), described second fixedly hole clipping (325) correspondence be stuck in second fixedly on card column (222); Described second baffle (327) rear end is provided with the first pin fastener (328), and described the second connector (32) is stuck in the first pin fastener (328) and is connected with described the first connector (31) by the first pin (51) correspondence;
Described the 3rd connector (33) front end is provided with the 3rd flanging (331), on described the 3rd flanging (331), be provided with the 3rd elastic component (332), described the 3rd flanging (331) and the 3rd elastic component (332) be for being arranged in the 3rd hole clipping (23), and be formed with the 3rd collecting tray (333) for the holding busbar between the 3rd flanging (331) and the 3rd elastic component (332); In the middle of the 3rd connector (33), be disposed with fixedly hole clipping (335) of the 3rd standing block hole (334) and the 3rd, it is upper that described the 3rd standing block hole (334) correspondence is stuck in the 3rd location card column (231), the 3rd fixedly hole clipping (335) correspondence be stuck in the 3rd fixedly on card column (232); Described the 3rd connector (33) rear end one side is provided with the 3rd baffle plate (336), the 4th baffle plate (337), and be provided with the second diode (52) between the 3rd baffle plate (336), the 4th baffle plate (337), on described the second diode (52), be provided with the second pin (53), connecting pin fastener (338) in the middle of the opposite side of the 3rd connector (33) rear end is provided with, connecting pin (54) in the middle of being equipped with on connecting pin fastener (338) in the middle of described, and the 3rd connector (33) is connected with the second connector (32) by middle connecting pin (54);
The front end of described the 4th connector (34) is provided with Fourth Fold (341), on described Fourth Fold (341), be provided with the 4th elastic component (342), described Fourth Fold (341) and the 4th elastic component (342) correspondence are arranged in the 4th hole clipping (24), and are formed with the 4th collecting tray (343) for the holding busbar between Fourth Fold (341) and the 4th elastic component (342); The centre of the 4th connector (34) is disposed with the 4th standing block hole (344), the 4th fixedly hole clipping (345) and the second pin fastener (346), described the 4th standing block hole (344) correspondence is stuck in the 4th location card column (241), the described the 4th fixedly hole clipping (345) correspondence be stuck in the 4th fixedly in card column (242); In the second pin fastener (346), be equipped with second pin (53) of the second diode (52), described the 4th connector (34) is connected with the 3rd connector (33) by the second pin (53); The rear end of the 4th connector (34) also is provided with the second U-shaped connecting groove (347), and described the second U-shaped connecting groove (347) correspondence is placed in base plate negative pole cable trough (26).
2. the solar junction box of card welding end minor structure according to claim 1, it is characterized in that, described main body (10) front end is provided with a perforate (11) that runs through main body (10), described perforate (11) top is provided with a cover plate (12), and described cover plate (12) is sealed in perforate (11) by sealing ring (13); The below of described perforate (11) is equipped be used to connecting the busbar of solar panel.
3. the solar junction box of card welding end minor structure according to claim 2, it is characterized in that, described main body (10) both sides respectively are provided with a draw-in groove (14), and described cover plate (12) both sides are provided with the buckle (121) with the corresponding engaging of described draw-in groove (14).
4. the solar junction box of card welding end minor structure according to claim 1, it is characterized in that, described main body (10) both sides, rear end are respectively arranged with main body electrode cable groove (15) and main body negative pole cable trough (16), and main body electrode cable groove (15) is combined to form the wire casing for fixing anodal connector (40) cable with base plate electrode cable groove (25); Main body negative pole cable trough (16) and base plate negative pole cable trough (26) are combined to form for the fixing wire casing of negative pole connector (41) cable.
5. the solar junction box of card welding end minor structure according to claim 4, is characterized in that, described anodal connector (40) cable is electrically connected to the first U-shaped connecting groove (316) terminal; Described negative pole connector (41) cable is electrically connected to the second U-shaped connecting groove (347) terminal.
CN201310360112.3A 2013-08-16 2013-08-16 The solar junction box of card welding end minor structure Expired - Fee Related CN103413852B (en)

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CN104270089A (en) * 2014-09-28 2015-01-07 江苏海天微电子科技有限公司 Photovoltaic junction box resistant to high voltage
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CN104184408A (en) * 2014-08-28 2014-12-03 常州天合光能有限公司 Photovoltaic junction box with photovoltaic module substring level optimizing function and photovoltaic module thereof
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CN108964605A (en) * 2018-09-20 2018-12-07 江苏天昇光伏科技有限公司 A kind of laminated batteries photovoltaic junction box
CN109150093A (en) * 2018-09-20 2019-01-04 江苏天昇光伏科技有限公司 A kind of photovoltaic termination

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