CN102683451A

CN102683451A - Structurally improved photovoltaic junction box

Info

Publication number: CN102683451A
Application number: CN2012101525493A
Authority: CN
Inventors: 叶科华; 王军华; 陆红雨
Original assignee: CHANGSHU HONGLIN CONNECTING TECHNOLOGY Co Ltd
Current assignee: CHANGSHU HONGBO COMMUNICATION TECHNOLOGY CO., LTD.
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2012-09-19
Anticipated expiration: 2032-05-17
Also published as: CN102683451B

Abstract

A structurally improved photovoltaic junction box belongs to the technical field of solar cell modules, comprises a box body, a cover and a pair of outgoing cables, and is characterized by further comprising a pair of cable pressing blocks, wherein a pair of clamping pins, an outer inserting plate, an inner inserting plate and plastic rivet holes are respectively arranged on the cable pressing blocks, the clamping pins are positioned at the left and the right sides of cable pressing block main bodies, the outer and the inner inserting plates are located at the front and the rear sides of the cable pressing block main bodies, the cable pressing block main bodies are arranged the plastic rivet holes, ports of the outgoing cables on the box body are respectively provided with a limiting cavity, a pair of troughs, an outer slot, an inner slot and plastic rivet columns are formed in each limit cavity, the cable pressing blocks are fixed in the limit cavities in a sweating soldering way, and the pair of outgoing cables are respectively led from a box cavity out of the box body through wire fixing holes formed by embedding the cable pressing blocks and the limit cavities. The structurally improved photovoltaic junction box has the advantages that the photovoltaic junction box saves materials, and is reduced in production cost; the assembling and production are convenient, the stress is very small after the assembly, and the box body is not easy to deform; and the sealing performance is good, and sealant in the box cavity can be effectively prevented from leaking out.

Description

The photovoltaic terminal box of architecture advances

Technical field

The invention belongs to the solar module technical field, be specifically related to a kind of Wiring box for solar photovoltaic electrification component of architecture advances

Background technology

inexhaustible, nexhaustible solar energy more and more receives people's favor because of its safety, clean, environmental protection.At present, the heliotechnics development is rapid, and especially the photovoltaic industry has become the rising industry that competitively chase in the whole world.And terminal box plays important effect in the photovoltaic industry, and along with the development that photovoltaic industry is maked rapid progress, increasing sight has turned on one's body the terminal box.The photovoltaic terminal box is as a vitals of solar module; Be between the solar cell array of solar module formation and the connector between the solar charging controller for electric consumption; It can not only be sent to the electric power that solar cell produces in the external circuit and go, and it also is " bodyguard " of solar module simultaneously.Photovoltaic junction box generally all is placed on outdoor, in violent storm and the environment of exposing to the weather, uses for a long time, can quicken the aging of terminal box and inner member thereof, the inner in case water inlet of terminal box, and consequence is hardly imaginable.Therefore, the sealing of terminal box has become very important parameters, and sealing property requires generally higher.Existing terminal box sealing, the method that is employed in perfusion fluid sealant in the box body mostly realize that water that like this can terminal box is outer, moisture, dust etc. are isolated outside.

The structure of the photovoltaic terminal box that are common is as shown in Figure 2; The lid 2 that comprises terminal box box body 1, joins with terminal box box body 1 lid and be used for the box chamber that is arranged on terminal box box body 1 in electrical connection mechanism be electrically connected and cause terminal box box body 1 a pair of outgoing cable 3 outward; In said terminal box box body 1, generally also be provided with the tension disc 5 that is used for a pair of outgoing cable 3 location; Described tension disc 5 be strip and with the sidewall tabling of terminal box box body 1 one sides; And gland is above a pair of outgoing cable 3; This tension disc 5 through several screws 51 be embedded in copper screw cap 12 on terminal box box body 1 base plate and revolve to join and achieve a fixed connection, a pair of outgoing cable 3 is drawn outside box body from the box chamber of box body through the pressuring line groove that is arranged on tension disc 5 belows.There is following defective in this tension disc structure: at first, the design of strip makes that the production materials are many, manufacturing cost increases; Secondly; Adopt the connected mode of screw and nut to realize being fixedly connected between tension disc and the box body; This can bring the inconvenience of installing and waste man-hour when assembling is produced; And can't make tension disc that cable is carried out gland seal, the fluid sealant that therefore is poured in the box body very easily outwards oozes out the slit between pressuring line groove and cable; In addition, tension disc be because the application of force of cable can produce stress, the distortion hidden danger that therefore exists Stress Release and caused.

Reflect this, be necessary existing photovoltaic terminal box is improved, the technical scheme that will introduce below produces under this background

Summary of the invention

task of the present invention is to provide a kind of photovoltaic terminal box of architecture advances; It is cheap for manufacturing cost, assembling is convenient for production and assembling back stress is minimum; Box body is difficult for producing deformation; Good seal performance can prevent effectively that the fluid sealant in the box chamber from outwards oozing out simultaneously.

task of the present invention is accomplished like this; A kind of photovoltaic terminal box of architecture advances; Comprise lid that a terminal box box body, is joined with described terminal box tray cover and a pair of be used for the box chamber that is arranged on the terminal box box body in electrical connection mechanism be electrically connected and cause the outer outgoing cable of terminal box box body; Be characterized in: also include a pair of line ball piece; Respectively be formed with a pair of card base, an outer plate, a built-in inserted plate on a pair of line ball piece and mould rivet hole; A pair of card base is positioned at the left and right sides of line ball block body; Outer plate, built-in inserted plate lay respectively at the both sides, front and back of line ball block body; Mould rivet hole and be opened in the centre of line ball block body, described terminal box box body respectively be formed with in the exit of a pair of outgoing cable one be used to hold said line ball piece limit chamber, in described limit chamber, be formed with respectively be used for the draw-in groove of a pair of card base scarf, be used for and outside the plate scarf outer slot, be used for the interior slot of built-in inserted plate scarf and be used for and mould the rivet hole inserting mould the riveting post; Described line ball piece is fixed in the described limit chamber through the mode of sweat soldering, a pair of outgoing cable respectively through line ball piece and the chimeric solidus hole that forms of limit chamber by leading to outside the terminal box box body in the box chamber.

are in a concrete embodiment of the present invention; First semicircle orifice is formed on the bottom of said limit chamber; The bottom of said line ball piece is formed with and is used for second semicircle orifice that is complementary with said first semicircle orifice, and described first semicircle orifice and described second semicircle orifice are involutory and be formed for the solidus hole of fixing described outgoing cable.

in a concrete embodiment of the present invention, described quantity of moulding the riveting post is one or more, corresponding ground, and the quantity of moulding rivet hole on the described line ball piece is identical with the quantity of moulding the riveting post and the position is corresponding.

the present invention replaces the tension disc in original technology by a pair of line ball piece, the beneficial effect that has: at first, materials are economized, and reduce production costs; Secondly, the chimeric mode of employing is connected and fixes through sweat soldering between line ball piece and the terminal box box body, not only assembles convenient for production; And assembling back stress is minimum; Box body is difficult for producing deformation, and good seal performance can prevent effectively that the fluid sealant in the box chamber from outwards oozing out simultaneously.

Description of drawings

Fig. 1 is one embodiment of the invention structure chart.

Fig. 2 is a prior art structure reference diagram of the present invention.

Among figure: 1. slot, 114. is moulded riveting post, 115. first semicircle orifices, 12. copper screw caps in terminal box box body, 11. limit chambers, 111. draw-in grooves, the 112. outer slots, 113.; 2. lid; 3. outgoing cable; 4. line ball piece, 41. card bases, 42. outer plates, 43. built-in inserted plates, 44. are moulded rivet hole, 45. second semicircle orifices; 5. tension disc, 51. screws.

Embodiment

can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.

see also Fig. 1; The photovoltaic terminal box of a kind of architecture advances of the present invention, comprise that a terminal box box body 1, is fastened on said terminal box box body 1 top and the lid 2 of joining with said terminal box box body 1 lid and a pair of be used for the box chamber that is arranged on terminal box box body 1 in electrical connection mechanism be electrically connected and cause terminal box box body 1 outgoing cable 3 and a pair of line ball piece 4 outward.The planform of a pair of line ball piece 4 is identical; Respectively be formed with the outer plate of a pair of card base 41, one 42, a built-in inserted plate 43 and mould rivet hole 44 and second semicircle orifice 45, a pair of card base 41 is positioned at the left and right sides of line ball block body, and outer plate 42, built-in inserted plate 43 lay respectively at the both sides, front and back of line ball block body; Mould rivet hole 44 and be opened in the centre of line ball block body; Its quantity does not receive any restriction, can be one or more, in the present embodiment; Be preferably two, second semicircle orifice 45 is opened in the middle of the bottom of line ball block body.Described terminal box box body 1 respectively be formed with in the exit of a pair of outgoing cable 3 one be used to hold said line ball piece 4 limit chamber 11; In described limit chamber 11, be formed with respectively be used for the draw-in groove 111 of a pair of card base 41 scarves, be used for and outside plate 42 scarves outer slot 112, be used for the interior slot 113 of built-in inserted plate 43 scarves and be used for and mould rivet hole 44 insertings mould riveting post 114, described line ball piece 4 is fixed in the described limit chamber 11 through the mode of sweat soldering.Also be formed with first semicircle orifice 115 in the bottom of described limit chamber 11; Through first semicircle orifice 115 and the involutory solidus holes that are formed for fixing described outgoing cable 3 of second semicircle orifice 45, a pair of outgoing cable 3 respectively through the solidus hole by leading to outside the terminal box box body 1 in the box chamber.

In sum, technical scheme provided by the invention has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant

Claims

1. the photovoltaic terminal box of a kind of architecture advances; Comprise lid (2) that a terminal box box body (1), is joined with described terminal box box body (1) lid and a pair of be used for the box chamber that is arranged on terminal box box body (1) in electrical connection mechanism be electrically connected and cause terminal box box body (1) outgoing cable (3) outward; It is characterized in that: also include a pair of line ball piece (4); Respectively be formed with a pair of card base (41), an outer plate (42), a built-in inserted plate (43) on a pair of line ball piece (4) and mould rivet hole (44); A pair of card base (41) is positioned at the left and right sides of line ball block body; Outer plate (42), built-in inserted plate (43) lay respectively at the both sides, front and back of line ball block body; Mould rivet hole (44) and be opened in the centre of line ball block body; Described terminal box box body (1) respectively be formed with in the exit of a pair of outgoing cable (3) one be used to hold said line ball piece (4) limit chamber (11); In described limit chamber (11), be formed with respectively be used for the draw-in groove (111) of a pair of card base (41) scarf, be used for and outside plate (42) scarf outer slot (112), be used for and the interior slot (113) of built-in inserted plate (43) scarf and be used for and mould rivet hole (44) inserting mould riveting post (114); Described line ball piece (4) is fixed in the described limit chamber (11) through the mode of sweat soldering, a pair of outgoing cable (3) respectively through line ball piece (4) and the chimeric solidus hole that forms of limit chamber (11) by leading in the box chamber outside the terminal box box body (1).

2. the photovoltaic terminal box of architecture advances according to claim 1; First semicircle orifice (115) is formed on the bottom that it is characterized in that said limit chamber (11); The bottom of said line ball piece (4) is formed with and is used for second semicircle orifice (45) that is complementary with said first semicircle orifice (115), and described first semicircle orifice (115) is involutory and be formed for the solidus hole of fixing described outgoing cable (3) with described second semicircle orifice (45).

3. The photovoltaic terminal box of architecture advances according to claim 1; It is characterized in that described quantity of moulding riveting post (114) is one or more; Corresponding ground, the quantity of moulding rivet hole (44) on the described line ball piece (4) is identical with the quantity of moulding riveting post (111) and the position is corresponding