CN202134550U - Safe confluence box for solar module - Google Patents

Abstract

A safe confluence box for a solar module comprises a box body made of an insulating material, a plurality of first leads respectively connected with a plurality of solar module anodes one by one, and a plurality of second leads respectively connected with a plurality of solar module cathodes one by one, wherein the box body is provided with two inlet holes and two outlet holes, and the first leads and the second leads respectively pass through the two inlet holes, and extend into the box body. The safe confluence box is characterized in that each of the first leads and each of the second leads outside the box body are respectively equipped with a diode and a fuse serially connected; and two confluence connecting pieces made of metal are arranged in the box body, a third lead and a fourth lead respectively pass through the two outlet holes and extend into the box body, the first leads and the third lead extending into the box body are electrically connected through one confluence connecting piece, and the second leads and the fourth lead extending into the box body are electrically connected through the other confluence connecting piece. By adopting the confluence box, a power generation system is high in security, easy to maintain, short in construction cycle, high in efficiency, and low in cost.

Description

The safety that the is used for solar module box that confluxes

Technical field

The utility model relates to a kind of box that confluxes, and especially relates to a kind of safety that is used for solar module box that confluxes.

Background technology

At present, solar power generation adopts the matrix compound mode, and will organize solar module more and link together, be electric energy with conversion of solar energy.Usually the lead with every group of solar module directly bundlees, is fixed in the insulation spool; Between two groups of adjacent solar modules according to voltage condition; Through confluence copper bar and line nose; Be connected to the grid after inserting inverter by series connection and/or parallel way again, finally form the whole generating system.

The said structure form can increase the conductor length of every group of solar module, lead need specific customization just can, the caliber of institute's distribution pipe is bigger, the use amount of lead, confluence copper bar and line nose is all bigger, the overall routing mode is comparatively complicated, it is also higher to require.Therefore; Adopt the said structure form,, make that the fail safe of electricity generation system is lower because of no power-off protection; And if short circuit problem appears in solar module; Need detect one by one, can't learn it specifically is that problem has appearred in that group solar module fast, increase the difficulty of maintenance work; In addition, make the long construction period of electricity generation system, efficient is low, cost is higher.

The utility model content

The utility model technical problem to be solved provides a kind of safety that is used for solar module box that confluxes, and adopts the box that originally confluxes, and makes the safe, for ease of maintenaince of electricity generation system, and short construction period, efficient is high, cost is lower.

For solving the problems of the technologies described above; The utility model provides a kind of safety that is used for solar module box that confluxes; It comprises box body that insulating material processes, respectively connect one by one anodal some first leads of plurality of solar cells assembly, connect some second leads of plurality of solar cells assembly negative pole one by one respectively; Have two entrance holes and two wire holes on the box body; Described first lead, second lead pass two entrance holes respectively and put in the box body, it is characterized in that: be in a diode and a fusible link that mutual series connection all is set on each outer first lead of box body, each second lead; Being provided with two in the box body adopts metal materials to process and the connector that confluxes of space; A privates and privates pass two wire holes respectively and put in the box body; First lead and the privates that put in the box body are electrically connected through the connector that confluxes, and second lead and the privates that put in the box body are electrically connected through another connector that confluxes.

For the purpose of the concise description problem, down all abbreviate the box that originally confluxes as in the face of the said safety that is used for solar module of the utility model box that confluxes.

After adopting above structure, described diode plays the effect of power-off protection, makes that the fail safe of electricity generation system is higher; And if short circuit problem appears in certain group solar module failover; Immediate current surpasses rated current, and corresponding fusible link can fuse very soon, thus protection whole generating system; Prevent the contingency on fire of Denging; And can learn it specifically is that problem has appearred in that group solar module fast, and need not all solar modules are detected one by one, reduce the difficulty of maintenance work.Therefore, adopt the box that originally confluxes, make the safe, for ease of maintenaince of electricity generation system.

In addition; After adopting above structure; Some first leads are electrically connected with a privates through the connector that confluxes; Some second leads are electrically connected with privates through another connector that confluxes; So through two connectors that conflux in the box that originally confluxes; Can distinguish fixing exactly corresponding lead (that is: a privates is fixed with some first leads that are connected plurality of solar cells assembly positive pole respectively one by one, privates are fixed with some second leads that are connected plurality of solar cells assembly negative pole respectively one by one), the electric current that makes the plurality of solar cells assembly produce outwards flows through a privates, privates after confluxing.Like this, according to voltage condition,, by being connected to the grid behind series connection and/or the parallel way access inverter, finally form the whole generating system again between the plurality of solar cells assembly through the box that originally confluxes.Therefore, can reduce the conductor length of every group of solar module, lead need not specific customization, and the caliber of institute's distribution pipe is less, and the use amount of lead is less, and the overall routing mode is comparatively simple, requirement is also lower.Therefore, adopt the box that originally confluxes, make that also short construction period, efficient height, the cost of electricity generation system are lower.

The said connector that confluxes by housing screw, pressing plate, be fixed in the box body Connection Block on the diapire and form; The U-lag hole that the top of Connection Block has a confession respective wire termination to penetrate; Two openings of slotted eye are positioned on the end face of Connection Block; Be in the stage casing that end face that pressing plate between two openings of slotted eye passes Connection Block gets into slotted eye and push down the termination of respective wire; Housing screw spins with Connection Block after running through the termination of pressing plate, respective wire, makes the termination of respective wire be pressed in the stage casing of slotted eye through housing screw, pressing plate.

As the optimization of the utility model, conflux and locate to be provided with a dividing plate between the connector in two of box body inherences, so that box body inside is divided into two isolated each other chambers.

Like this, first lead and privates are in the chamber, and second lead and privates are in another chamber, thereby avoid described lead to produce interference each other.

Description of drawings

Fig. 1 is the stereogram of the utility model;

Fig. 2 is the structural representation of the utility model.

Embodiment

To combine accompanying drawing below, the utility model done describing in further detail through execution mode:

Referring to Fig. 1, Fig. 2: the box that originally confluxes comprise box body 1 that insulating material processes, respectively connect one by one two first anodal leads 4 of two solar modules, connect two second leads 5 of two solar module negative poles, two connectors that conflux, privates 6, privates 7 one by one respectively.Need to prove not shown described solar module and its both positive and negative polarity in the accompanying drawing, the loam cake of also not shown box body 1.

Have two entrance holes 11 and two wire holes 12 on the box body 1; Described first lead 4, second lead 5 pass two entrance holes 11 respectively and put in the box body 1, are in a diode 8 and a fusible link 9 that mutual series connection all is set on outer each of box body 1 first lead 4, each second lead 5.Being provided with two in the box body 1 adopts metal materials to process and the connector that confluxes of space; A privates 6 and privates 7 pass two wire holes 12 respectively and put in the box body 1; First lead 4 that puts in the box body 1 is electrically connected through the connector that confluxes with privates 6, and second lead 5 that puts in the box body 1 is electrically connected through another connector that confluxes with privates 7.

Conflux connector by housing screw 31, pressing plate 32, be fixed in the box body 1 Connection Block 33 on the diapire and form; The U-lag hole 34 that the top of Connection Block 33 has a confession respective wire termination to penetrate; Two openings of slotted eye 34 are positioned on the end face of Connection Block 33; Be in the stage casing that end face that pressing plate 32 between 34 two openings of slotted eye passes Connection Block 33 gets into slotted eye 34 and push down the termination of respective wire; Housing screw 31 spins with Connection Block 33 after running through the termination of pressing plate 32, respective wire, makes the termination of respective wire be pressed in the stage casing of slotted eye 34 through housing screw 31, pressing plate 32.The termination of said respective wire is respectively the termination of two first leads 4 and a privates 6, and the termination of two second leads 5 and privates 7.

Conflux and locate to be provided with a dividing plate 2 between the connector in box body 1 two of inherences, so that box body 1 inside is divided into two isolated each other chambers.

Above-described only is a kind of execution mode of the utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be regarded as belonging to the protection range of the utility model.

Claims (3)

1. the safety that the is used for solar module box that confluxes; It comprises box body that insulating material processes, respectively connect one by one anodal some first leads of plurality of solar cells assembly, connect some second leads of plurality of solar cells assembly negative pole one by one respectively; Have two entrance holes and two wire holes on the box body; Described first lead, second lead pass two entrance holes respectively and put in the box body, it is characterized in that: be in a diode and a fusible link that mutual series connection all is set on each outer first lead of box body, each second lead; Being provided with two in the box body adopts metal materials to process and the connector that confluxes of space; A privates and privates pass two wire holes respectively and put in the box body; First lead and the privates that put in the box body are electrically connected through the connector that confluxes, and second lead and the privates that put in the box body are electrically connected through another connector that confluxes.

2. the safety that the is used for solar module according to claim 1 box that confluxes; It is characterized in that: the connector that confluxes by housing screw, pressing plate, be fixed in the box body Connection Block on the diapire and form; The U-lag hole that the top of Connection Block has a confession respective wire termination to penetrate; Two openings of slotted eye are positioned on the end face of Connection Block; Be in the stage casing that end face that pressing plate between two openings of slotted eye passes Connection Block gets into slotted eye and push down the termination of respective wire, housing screw spins with Connection Block after running through the termination of pressing plate, respective wire, makes the termination of respective wire be pressed in the stage casing of slotted eye through housing screw, pressing plate.

3. according to claim l or the 2 described safety that the are used for solar module box that confluxes, it is characterized in that: inherent two of box body confluxes and locates to be provided with a dividing plate between the connector, so that box body inside is divided into two isolated each other chambers.

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