CN202564416U

CN202564416U - Solar energy photovoltaic assembly junction box

Info

Publication number: CN202564416U
Application number: CN2012202211959U
Authority: CN
Inventors: 叶科华; 王军华; 陆红雨
Original assignee: CHANGSHU HONGLIN CONNECTING TECHNOLOGY Co Ltd
Current assignee: Changshu Honglin Electronic Co., Ltd.
Priority date: 2012-05-17
Filing date: 2012-05-17
Publication date: 2012-11-28
Anticipated expiration: 2022-05-17

Abstract

The invention relates to a solar energy photovoltaic assembly junction box, which belongs to the solar energy photovoltaic assembly technical field. The solar energy photovoltaic assembly junction box comprises a box body, a box cover, a bypass diode arranged on the box body, a lead cable joint, a bus bar clamp and an electric connection plate. The solar energy photovoltaic assembly junction box is characterized in that an electric connection plate accommodation chamber is formed at the back side of the box body, a first electric connection chamber and a second electric connection chamber are provided on the bottom of the electric connection plate accommodation chamber, the electric connection plate is embedded in the electric connection plate accommodation chamber, the bus bar clamp accommodation chamber which is communicated with the box chamber of the box body is formed at the back side of the box body, and the bus bar clamp is cooperated with the electric connection plate and is embedded in the bus bar clamp accommodation chamber. The solar energy photovoltaic assembly junction box has the advantages that width of the narrowed electric connection plate has the principles of saving the material and guaranteeing the positioning effect of the bus bar clamp; the component number is minimized, and the installation workload can be minimized, the solar energy photovoltaic assembly junction box has good clamping effect on the bus bar, has electric connection effect with the electric connection plate, and is in favor of heat radiation of the bypass diode.

Description

The solar photovoltaic assembly terminal box

Technical field

The utility model belongs to the solar photovoltaic assembly technical field, is specifically related to a kind of solar photovoltaic assembly terminal box

Background technology

such as industry knowledge, the solar photovoltaic assembly terminal box is the transition member between solar module and solar charging device, be output sun-generated electric power vitals.In disclosed Chinese patent document, can be seen in the technical information of relevant solar photovoltaic assembly terminal box in a large number; Slightly with give an example like the public all solar energy photovoltaic metallic wiring box of: Wiring box for solar photovoltaic electrification component, the CN201075856Y that the terminal box of the output line of the solar energy module that the structure-improved of the Wiring box for solar photovoltaic electrification component that publication number CN101442280A recommends, the solar junction box that CN2716748Y provides, CN101138098A introduce and the installation method of this terminal box, CN200941388Y disclose, solar photovoltaic metallic wiring box that CN101286626A releases, solar-energy photo-voltaic cell system that CN101459392A discloses with terminal box and CN201656368U, CN201656369U, CN201562929U, or the like.

The common feature of the solar photovoltaic assembly terminal box that give an example above being not limited to is: the electric connection board that is used for the custom that busbar, bypass diode and outgoing cable joint three implement to be electrically connected is referred to as conducting strip is front-installed from box body; Though the positive convenience that can embody installation to a certain extent of installing; But shortcoming below objectively existing: one of which; Because busbar is electrically connected with electric connection board through the busbar pinch, therefore in order the busbar pinch to be set and the busbar pinch reliably to be located, in the front of box body and an end that is positioned at box body be designed with the knee wall (also can claim supporting walls) that is used to supply the support of busbar pinch; The busbar pinch is located in the body of wall supporting and space; And keep out on body of wall its end, so, because the existence of knee wall; Increased on the one hand the complexity of box body structure, length and the width that makes electric connection board on the other hand increases and causes the material consumption amount of making electric connection board big and improved cost; They are two years old; The anxiety that exists body of wall to be out of shape because of the intensity shortcoming; In case and strength of wall body is not enough, the fiting effect between busbar pinch and the electric connection board is affected so, finally causes clamping of busbar loosening and influence the effect that is electrically connected of electric connection board and busbar; They are three years old; Because in order to prevent that the busbar pinch from being to escape the aforesaid supporting and space from the chamber that is made up of knee wall; Therefore need be equipped with the busbar pinch over cap (the industry custom is claimed the shell fragment over cap) that is used to stop the escape of busbar pinch, thereby cause the increase of increase of component number purpose and installation workload; Its four, influence the radiating effect of bypass diode and life-span of whole terminal box exerted an influence.

In view of above-mentioned prior art, be necessary rationally to improve, for this reason, the applicant has done useful design, and the technical scheme that will introduce below produces under this background

Summary of the invention

The task of the utility model be to provide a kind of help to abandon knee wall and use simplify the box body structure and the electric connection board that narrows width with economical with materials; Help ensureing that the busbar pinch clamps the effect that is electrically connected of effect and guarantee and electric connection board to busbar desirable; Be of value to and save busbar pinch over cap and use to reduce component number and reduce installation workload and be convenient to make bypass diode to embody better heat radiating effect and use the solar photovoltaic assembly terminal box in the useful life that ensures terminal box with having.

The task of the utility model is accomplished like this; A kind of solar photovoltaic assembly terminal box; The electric connection board that comprises box body, the lid that matches with box body, is arranged on bypass diode, outgoing cable joint, the busbar pinch in the bypass diode chamber that is formed on the box body and is used for being electrically connected with bypass diode, outgoing cable joint and busbar pinch; Be characterised in that: at the back side of said box body and constituting the electric connection board container cavity corresponding to the position between the described two adjacent bypass diode chambeies; And on the diapire of electric connection board container cavity, offer and be used for first electrical connection chamber that electric connection board is electrically connected with described bypass diode and the second electrical connection chamber that is used for being electrically connected with described outgoing cable joint; Described electric connection board is embedded in the electric connection board chamber; And also constitute the busbar pinch container cavity that communicates with the box chamber of box body at the back side of box body, described busbar pinch matches with electric connection board and is embedded in busbar pinch container cavity.

are in one of the utility model concrete embodiment; On the diapire of described electric connection board container cavity, extended one group of reference column; Offer the location hole that quantity equates with reference column at the middle part of described electric connection board and in position corresponding to reference column; And constitute a busbar pinch matching seat towards an end of described busbar pinch at electric connection board; This busbar pinch matching seat is embedded in the described busbar pinch container cavity with the busbar pinch, and electric connection board is electrically connected with the outgoing cable joint towards an end of said outgoing cable joint.

are in another concrete embodiment of the utility model; On the described first electrical connection chamber and the side towards described bypass diode chamber offer a bypass diode pin caulking groove; This bypass diode pin caulking groove communicates with the bypass diode chamber, and the bypass diode pin of described bypass diode probes in the bypass diode pin caulking groove and with described electric connection board and is electrically connected.

are in another concrete embodiment of the utility model; Described electric connection board constitutes an electric connection board connector towards an end of said outgoing cable joint; Be fixed with outgoing cable on the described outgoing cable joint, the cable core of this outgoing cable is electrically connected with described electric connection board connector.

in another concrete embodiment of the utility model, the shape of cross section of described busbar pinch matching seat is inverted U-shaped.

also have among the concrete embodiment the utility model, and the shape of cross section of described electric connection board connector is the n font of English alphabet.

are at more and among concrete embodiment of the utility model; When the quantity of the bypass diode in being arranged on described bypass diode chamber was one, the quantity in the described first electrical connection chamber of then on the diapire of described electric connection board container cavity, offering was one; And the quantity of the bypass diode in being arranged on same bypass diode chamber is parallel when a pair of, and the quantity in the said first electrical connection chamber of then on the diapire of said electrical connection panel seat container cavity, offering is a pair of.

the utility model so that concrete embodiment in, described busbar pinch has one and is used to the busbar access port that supplies busbar to insert.

are at again more and among concrete embodiment of the utility model; An end of described housing constitute a pair of before the card base groove; And constitute a pair of back card base groove at the other end of housing, a side of described lid and the position corresponding to preceding card base groove be extended with a pair of before card base, and opposite side and after correspondence the position of card base groove be extended with a pair of card base afterwards; Wherein: card base engages with preceding card base groove before said, and then card base engages with back card base groove.

are at again and then among concrete embodiment of the utility model; Position, edge at the back side of described box body is concaved with a sealing strip groove; And being provided with a sealing strip at the position, edge of described lid and in position corresponding to the sealing strip groove, the sealing bar matches with the sealing strip groove.

The technical scheme that the utility model provides is owing to directly offered busbar pinch container cavity on box body; Therefore can with the busbar pinch with state that electric connection board matches down in this busbar pinch container cavity of embedding; Thereby abandoned the knee wall that is used to support the busbar pinch in the prior art; Both can narrow the width of electric connection board with economical with materials, can ensure the locating effect of busbar pinch again; Because electric connection board shows as down the formula of setting; And the matching part of busbar pinch and electric connection board jointly is embedded in the busbar pinch container cavity at the box body back side; Therefore need not to resemble the independent configuration busbar pinch over cap of prior art, make component number be able to minimizing and can reduce installation workload; The busbar pinch both had to busbar good clamp effect, have the effect that is electrically connected again with electric connection board; Because electric connection board is located in the electric connection board container cavity with its flat presentation, and is electrically connected with bypass diode, therefore help the heat radiation of bypass diode.

Description of drawings

Fig. 1 is the example structure figure of the utility model.

Fig. 2 is the application examples sketch map of the utility model.

Embodiment

can be expressly understood the technical spirit and the beneficial effect of the utility model 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 utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.

Embodiment:

please be referring to Fig. 1; Having provided one preferably uses plastics but is not limited to the box body 1 of plastic production; End at box body 1; Say that more properly the end in the box chamber of box body 1 constitutes one group of bypass diode chamber 11 (being illustrated as four) that quantity does not receive the diagram restricted number, the back of box body 1 promptly by present location status shown in Figure 1 towards on a side and constitute one group of electric connection board container cavity 12 in position corresponding to adjacent bypass diode chamber 11.Particularly; The quantity of electric connection board container cavity 12 is five; Wherein three corresponding between the two adjacent bypass diode chambeies 11; And one promptly illustrate one of the right side between a bypass diode chamber 11 of the right side wall of box body 1 and the rightmost side, and another promptly illustrates one of the left side between a bypass diode chamber 11 of the left side wall of box body 1 and the leftmost side.Again; According to general knowledge; Because box body 1 is provided with a pair of outgoing cable joint 4; And one of them the outgoing cable joint 4 in a pair of outgoing cable joint 4 is corresponding to the electric connection board container cavity 12 between the bypass diode chamber 11 on the right side wall of aforesaid box body 1 and right side; And another outgoing cable joint 4 in a pair of outgoing cable joint 4 is corresponding to the electric connection board container cavity 12 between the bypass diode chamber 11 in the left side wall of box body 1 and left side; Therefore be on the diapire of the electric connection board container cavity 12 that promptly is in left and right side of both sides and except offering the first electrical connection chamber 121, also offer the second electrical connection chamber 122, and need offer the first electrical connection chamber 121 on the diapire of middle three electric connection board container cavities 12.On the aforesaid first electrical connection chamber 121 and the side towards bypass diode chamber 11 offer the bypass diode pin caulking groove 1211 that communicates with bypass diode chamber 11.

offer the busbar pinch container cavity 13 that the quantity of the busbar pinch 5 that is electrically connected with electric connection board 6 equates on box body 1; And (shown position state in the front side of box body 1; As follows) constitute a pair of preceding card base groove 14, and rear side constitutes a pair of back card base groove 15.In addition, be provided with a sealing strip groove 16 (Fig. 2 mark) towards the position, edge of a side of lid 2 at box body 1.

The front side of lid 2 and constitute in position corresponding to card base groove 14 before a pair of a pair of before card base 21; And rear side and constituting a pair of back card base 22 in the position corresponding to a pair of back card base groove 15; Preceding card base 21 engages with preceding card base groove 14; Back card base 22 engages with back card base groove 15, thereby lid 2 and box body 1 lid are joined.In order to ensure the sealing effectiveness between lid 2 and the box body 1; Therefore constitute a seal strip groove 24 at the position, edge of lid 2; In sealing bar groove 24, be provided with a sealing strip 23, make the good sealing of formation between lid 2 and the box body 1 with cooperating of aforesaid sealing strip groove 16 (Fig. 2 shows) by sealing bar 23.For the following bypass diode 3 that is arranged in the bypass diode chamber 11 that also will describe is located, therefore on lid 2, also constitute bypass diode positioning seat 25 again.

in the present embodiment; Because the quantity in bypass diode chamber 11 has five; Therefore the quantity of bypass diode 3 is five or ten minutes, in the time of five, then distributes one in each bypass diode chamber 11; And in the time of ten; Then be provided with parallel a pair ofly in each bypass diode chamber 11, present embodiment is selected the latter, and the bypass diode pin 31 of each bypass diode 3 is insinuated into through aforesaid bypass diode caulking groove 1211 in first the electrical connection chamber 121 in and is electrically connected with welding manner enforcement with electric connection board 6.

in the present embodiment; The quantity of electric connection board 6 is five pieces; Each the one piece of electric connection board 6 that promptly is positioned at left and right side that is positioned at both sides is owing to should be electrically connected with outgoing cable joint 4; Be electrically connected with the bypass diode pin 31 of bypass diode 3 again; Therefore constitute an electric connection board connector 63 at the electric connection board that is positioned at both sides 6 towards an end of outgoing cable joint 4, and the shape of cross section of this electric connection board connector 63 is that end surface shape is n shape, this electric connection board connector 63 is corresponding to the aforesaid second electrical connection chamber 122.After outgoing cable joint 4 and screw thread docked mode were coupled on the box body 1, the cable core 411 of the outgoing cable 41 of this outgoing cable joint 4 was just in alignment with electric connection board connector 63, and preferably fixed through welding manner and 63 welding of electric connection board connector.The middle part of electric connection board 6 offers one group of location hole 61, and the one group of reference column 123 that is formed on the diapire of aforesaid electric connection board container cavity 12 probes in the location hole 61, thereby electric connection board 6 is limited to the electric connection board container cavity 12 at the back that is positioned at box body 1.The other end of electric connection board 6 promptly towards an end of busbar pinch 5 constitute through bending one be inverted U font substantially busbar pinch matching seat 62, busbar 5 matches with busbar pinch matching seat 62 by fit system shown in Figure 1 and is embedded in the aforesaid busbar pinch container cavity 13.By shown in Figure 1, busbar pinch 5 has one and is used to supply to be embedded by the busbar of drawing on the solar photovoltaic cell panel busbar insertion mouth 51 of (insertion).

can be known by top explanation; In five pieces of electric connection boards 6; Three pieces of electric connection boards 6 in the middle of being positioned at are owing to only need to be electrically connected (being welded to connect) with the bypass diode pin 31 of bypass diode 3; Therefore there is not electric connection board connector 63, reflects this and three pieces of electric connection boards 6 in the middle of can this being positioned at be called the transition electric connection board.

Application examples:

please and combine Fig. 1 referring to Fig. 2; Understanding for the ease of the public; Solar photovoltaic cell panel 7 has been shown in Fig. 2; When will be with structure shown in Figure 1 be that the solar photovoltaic assembly terminal box of the utility model is attached to 7 last times of solar photovoltaic cell panel; In the seal groove 17 that can on box body 1, preset earlier sealing ring 171 is set; Smear adhesive (also claiming binding agent) on the surface 18 at the position, edge of box body 1 again, then box body 1 is aimed at and aforesaidly be attached on the solar photovoltaic cell panel 7 by the position of confluxing of drawing on the solar photovoltaic cell panel 7, following the embedded mode of busbar of this moment inserts mouthful 51 insertion busbar pinches 5 from busbar; The surface of while aforesaid surperficial 18 with solar photovoltaic cell panel 7 forms sealing, because adhesive is clamp-oned in the aforesaid seal groove 17.

In sum, the technical scheme that the utility model provides has overcome the shortcoming in the prior art effectively, has accomplished the invention task, has objectively embodied the technique effect described in the superincumbent technique effect of the applicant hurdle

Claims

1. a kind of solar photovoltaic assembly terminal box; The electric connection board (6) that comprises box body (1), the lid (2) that matches with box body (1), is arranged on bypass diode (3), outgoing cable joint (4), the busbar pinch (5) in the bypass diode chamber (11) that is formed on the box body (1) and is used for being electrically connected with bypass diode (3), outgoing cable joint (4) and busbar pinch (5); It is characterized in that: at the back side of said box body (1) and constituting electric connection board container cavity (12) corresponding to the position between the described two adjacent bypass diode chambeies (11); And on the diapire of electric connection board container cavity (12), offer and be used for first electrical connection chamber (121) that electric connection board (6) is electrically connected with described bypass diode (3) and the second electrical connection chamber (122) that is used for being electrically connected with described outgoing cable joint (4); Described electric connection board (6) is embedded in the electric connection board chamber (12); And also constitute the busbar pinch container cavity (13) that communicates with the box chamber of box body (1) at the back side of box body (1), described busbar pinch (5) matches with electric connection board (6) and is embedded in busbar pinch container cavity (13).

2. solar photovoltaic assembly terminal box according to claim 1; It is characterized in that on the diapire of described electric connection board container cavity (12), having extended one group of reference column (123); Offer the location hole (61) that quantity equates with reference column (123) at the middle part of described electric connection board (6) and in position corresponding to reference column (123); And constitute a busbar pinch matching seat (62) towards an end of described busbar pinch (5) at electric connection board (6); This busbar pinch matching seat (62) is embedded in the described busbar pinch container cavity (13) with busbar pinch (5), and electric connection board (6) is electrically connected with outgoing cable joint (4) towards an end of said outgoing cable joint (4).

3. solar photovoltaic assembly terminal box according to claim 1; It is characterized in that in the described first electrical connection chamber (121) and the side towards described bypass diode chamber (11) offers a bypass diode pin caulking groove (1211); This bypass diode pin caulking groove (1211) communicates with bypass diode chamber (11), and the bypass diode pin (31) of described bypass diode (3) probes in the bypass diode pin caulking groove (1211) and with described electric connection board (6) and is electrically connected.

4. solar photovoltaic assembly terminal box according to claim 1; It is characterized in that described electric connection board (6) constitutes an electric connection board connector (63) towards an end of said outgoing cable joint (4); Be fixed with outgoing cable (41) on the described outgoing cable joint (4), the cable core (411) of this outgoing cable (41) is electrically connected with described electric connection board connector (63).

5. solar photovoltaic assembly terminal box according to claim 2 is characterized in that the shape of cross section of described busbar pinch matching seat (62) is inverted U-shaped.

6. solar photovoltaic assembly terminal box according to claim 4 is characterized in that the shape of cross section of described electric connection board connector (63) is the n font of English alphabet.

7. solar photovoltaic assembly terminal box according to claim 3; When the quantity that it is characterized in that the bypass diode (3) in being arranged on described bypass diode chamber (11) was one, the quantity in the described first electrical connection chamber of then on the diapire of described electric connection board container cavity (12), offering (121) was one; And the quantity of the bypass diode (3) in being arranged on same bypass diode chamber (11) is parallel when a pair of, and the quantity in the said first electrical connection chamber of then on the diapire of said electrical connection panel seat container cavity (12), offering (121) is a pair of.

8. solar photovoltaic assembly terminal box according to claim 1 and 2 is characterized in that described busbar pinch (5) has one and is used to supply the busbar access port (51) of busbar access.

9. solar photovoltaic assembly terminal box according to claim 1; It is characterized in that a end at described housing (1) constitute a pair of before card base groove (14); And constitute a pair of back card base groove (15) at the other end of housing (1); A side of described lid (2) and the position corresponding to preceding card base groove (14) be extended with a pair of before card base (21); And opposite side and after correspondence the position of card base groove (15) be extended with a pair of back card base (22), wherein: card base (21) engages with preceding card base groove (14) before said, then card base (22) engages with back card base groove (15).

10. According to claim 1 or 9 described solar photovoltaic assembly terminal boxes; It is characterized in that being concaved with a sealing strip groove (16) at the position, edge at the back side of described box body (1); And being provided with a sealing strip (23) at the position, edge of described lid (2) and in position corresponding to sealing strip groove (16), sealing bar (23) matches with sealing strip groove (16)