CN202121528U

CN202121528U - Junction box for solar photovoltaic modules

Info

Publication number: CN202121528U
Application number: CN2011202034150U
Authority: CN
Inventors: 邵名巍; 郑向阳
Original assignee: CHANGSHU TOP SOLAR MATERIAL Co Ltd
Current assignee: CHANGSHU TOP SOLAR MATERIAL Co Ltd
Priority date: 2011-06-16
Filing date: 2011-06-16
Publication date: 2012-01-18
Anticipated expiration: 2021-06-16

Abstract

A junction box for solar photovoltaic modules belongs to the technical field of electric connectors and comprises a box base and a box cover. The junction box is characterized in that a box cover seat is arranged in the middle of the box base, a cavity is arranged in the center of the box cover seat, a diode, a first sinking electrode and a second sinking electrode are disposed inside the cavity, an end face is formed on the outer edge of the wall of the box cover seat, a positive lead terminal and a negative lead terminal are formed on two sides of the bottom of the box base, a socket is arranged in the positive lead terminal and connected with one end of the diode, a plug is arranged in the negative lead terminal and connected with the other end of the diode, the first sinking electrode is mounted in a first positioning ring and electrically connected with the socket, the second sinking electrode is mounted in a second positioning ring which is electrically connected with the plug, and a glue layer is arranged at the bottom of the box base. The junction box has the advantages that the junction box is applicable to automatic flow line operation, skewing or torsion of the sinking electrodes due to external force is avoided, and the junction box is convenient for operation of manipulators, convenient in mounting and use, and long in service life.

Description

The terminal box that is used for solar photovoltaic assembly

Technical field

The utility model belongs to technical field of electric connectors, is specifically related to a kind of terminal box that is used for solar photovoltaic assembly

Background technology

The scarcity of non-renewable energy resources such as coal, oil is to exhausted; And the deterioration day by day of biological environment; Energy problem becomes the bottleneck of restriction international community economic development day by day, has also promoted the fast development of photovoltaic industry simultaneously greatly.From beginning in 1996, the demand of world's solar-energy photo-voltaic cell was with the speed increment in every year 30%, and the growth rate of international solar photocell in 2000 has reached 38%, reaches 50% in nearly 2 years.The market demand constantly enlarges; In order to satisfy market demand, photovoltaic module technology is continued to optimize, and high-efficient automatic production has been incorporated into first production line; But solar photovoltaic assembly terminal box in the market; Disclosed like Chinese utility model patent Granted publication number: CN201656368U, CN201656369U, CN201562929U, all be on the lead end of terminal box, to set nut, an end of stube cable on nut; The other end stube cable connector of cable thisly is arranged on the outer band line assembling mode of junction box body with cable and cable connector and can't be applied on the automation production flow line equipment; Simultaneously, terminal box and manipulator also can't cooperatively interact, and can not satisfy the demand of market to automated production.

For this reason, the applicant has carried out actively and effectively attempting, and the technical scheme that will introduce below produces under this background

Summary of the invention

The task of the utility model is that a kind of terminal box that is used for solar photovoltaic assembly that can be applicable to the automatic assembly line operational requirements will be provided.

The task of the utility model is accomplished like this; A kind of terminal box that is used for solar photovoltaic assembly; Comprise lid, cassette holder body; Be characterized in: described cassette holder body convexes with one and is used for covering the lid seat of joining with lid at the nearly medium position place of short transverse; Centre at the lid seat offers die cavity, in the set inside of said die cavity diode and first time sink electrode, second time sink electrode is arranged, and on the wall body outer of lid seat, is formed with the end face that is used to supply the manipulator contact; Described cassette holder body is formed with positive wire terminal, negative wire terminal in the two bottom sides of short transverse; In the positive wire terminal, be provided with sleeve; Described sleeve is connected with an end of diode through first electric conductor; Be provided with plug in the described negative wire terminal, plug is connected with the other end of diode through second electric conductor; Described first time sink electrode is installed in first locating ring; Described first locating ring is realized being electrically connected through first electric conductor and sleeve; Described second time sink electrode is installed in second locating ring, and described second locating ring is realized being electrically connected through second electric conductor and plug; Described cassette holder body is coated with on the bottom surface and is used for terminal box and the bonding rubberised layer of solar module.

in one of the utility model concrete embodiment, described lid is provided with buckle, offers the draw-in groove that is used for and is clasped on the wall body outer of said lid seat.

in another concrete embodiment of the utility model, the inner surface of described lid convexes with reinforcement.

are in another concrete embodiment of the utility model; Described lid is formed with a pair of first orientation angle in the two bottom sides of short transverse; Corresponding ground is formed with on the outer profile of the wall body of described lid seat and is used for a pair of second orientation angle that matches with first orientation angle.

in another concrete embodiment of the utility model, described positive and negative electrode lead terminal adopts the plug-in type lead terminal.

the utility model so that concrete embodiment in; Offer caulking groove in the last plane of described lid seat; Corresponding ground; On the inner surface of said lid, convex with and be used for the convexity that matches with described caulking groove, through protruding with realize being tightly connected of lid and lid seat cooperating of caulking groove.

the utility model is because after adopting said structure; The lead end of one of advantage that has, terminal box adopts the plug interior with the positive and negative lead terminal of cassette holder integrated injection molding, sleeve to replace nut, cable and cable connector, has solved in the prior art because of using cable can't be applicable to the problem of automatic assembly line operation; Advantage two, owing to down setting up locating ring outside the sink electrode, can effectively avoid down sink electrode crooked or twist, thereby can guarantee the smooth completion of automation mechanized operation because of external force; Advantage three, owing on the wall body outer of lid seat, be formed with and be used to supply the contacted end face of manipulator, make automation mechanized operation more convenient; Advantage four, product hermeticity can be good, radiating effect is excellent, easy to install, reliable, the life-span reached more than 25 years.

Description of drawings

Fig. 1 is the perspective view of the described lid of the utility model.

Fig. 2 is the perspective view on the opposite side direction of the described lid of the utility model.

Fig. 3 is the electrical connection sketch map between the described diode of the utility model, locating ring, following sink electrode, electric conductor and sleeve, the plug.

Fig. 4 is the perspective view of the described cassette holder body of the utility model.

Fig. 5 is described cassette holder body of the utility model and the planar structure cutaway view that is located at the interior diode of cassette holder body, locating ring, following sink electrode, electric conductor.

Fig. 6 is the rearview of the described cassette holder body of the utility model.

Among figure: 1. lid, 11. buckles, 12. first orientation angles, 13. reinforcements, 14. convexities; 2. cassette holder body, 21. lid seats, 211. die cavities, 212. draw-in grooves, 213. end faces, 214. second orientation angles, 215. caulking grooves, 22. diodes, 23. first times sink electrodes, 24. second times sink electrodes, 25. positive wire terminals, 251. sleeves, 252. first electric conductors, 26. negative wire terminals, 261. plugs, 262. second electric conductors, 27. first locating rings, 28. second locating rings, 29. rubberised layers.

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 combines accompanying drawing to elaborate with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model technical 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.

see also Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, and a kind of terminal box that is used for solar photovoltaic assembly comprises lid 1 and cassette holder body 2.The shape of described lid 1 is arch; Lid 1 is formed with buckle 11 respectively at the medium position place of the upper and lower end of short transverse; Lid 1 is formed with a pair of first orientation angle 12 in the two bottom sides of short transverse; Be formed with reinforcement 13 and convexity 14 on the inner surface of lid 1, described reinforcement 13 also can be used for the location of lid 1 simultaneously.The shape of described cassette holder body 2 also is an arch; Cassette holder body 2 convexes with one and is used for covering the lid seat 21 of joining with lid 1 at the nearly medium position place of short transverse; On lid seat 21, offer in the plane and be used for the caulking groove 215 that seals with protruding 14 scarves; Offer die cavity 211 in the centre of lid seat 21; In the set inside of said die cavity 211 diode 22 and first time sink electrode 23, second time sink electrode 24 are arranged; On the wall body outer of lid seat 21, be formed with three end faces 213 being used to supply the manipulator contact and be used for and buckle 11 draw-in groove 212 of scarf mutually, on the profile of the wall body outer of lid seat 21, be formed with and be used for a pair of second orientation angle 214 that matches with first orientation angle 12 with a pair of; Described cassette holder body 2 is formed with positive wire terminal 25, negative wire terminal 26 in the two bottom sides of short transverse; Both all adopt the plug-in type lead terminal described positive and negative electrode lead terminal 25,26; In positive wire terminal 25, be provided with sleeve 251; Described sleeve 251 is connected with an end of diode 22 through first electric conductor 252, in negative wire terminal 26, is provided with plug 261, and plug 261 is connected with the other end of diode 22 through second electric conductor 262; Described first time sink electrode 23 is installed in first locating ring 27; Described first locating ring 27 is realized being electrically connected with sleeve 251 through first electric conductor 252; Described second time sink electrode 24 is installed in second locating ring 28, and described second locating ring 28 is realized being electrically connected with plug 261 through second electric conductor 262; Described cassette holder body 2 is coated with on the bottom surface and is used for terminal box and the bonding rubberised layer 29 of solar module.

The operation principle of the utility model is: the electrical interconnecting device that terminal box is made up of lid 1, cassette holder body 2 and diode 22; Lid 1 snaps on the lid seat 21 of cassette holder body 2; Welding diode 22 in the die cavity 211 of lid seat 21; Its effect can prevent to produce when the solar module part is blocked hot spot effect; The positive and negative lead terminal the 25, the 26th of the two bottom sides of cassette holder 1 short transverse becomes the energy switching device of electric energy with solar energy converting, and cassette holder body 2 bottoms are provided with rubberised layer 29, can realize bonding between terminal box and the solar module through rubberised layer 29; Offer caulking groove 215 in the last plane of described lid seat 21; On the inner surface of said lid 1, convex with and be used for the convexity 14 that matches with caulking groove 215; In the die cavity 211 of lid seat 21, use casting glue simultaneously; Both solved the uneven problem of diode 22 heat radiations, guaranteed the sealing between lid seat 21 and the lid 1 again, be convenient to solar photovoltaic assembly in outdoor application.First, second set in the die cavity 211 of said lid seat 21 following sink electrode 23,24 is with first, second locating rings 27,28 outward; First, second is sink electrode 23,24 employing copper materials down; Through the deformation of itself; Contact with solar components, and set up first, second locating ring 27,28 outside the sink electrode 23,24 down at first, second, sink electrode 23,24 can the crooked or distortion because of external force down can to guarantee first, second.

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

Claims

1. terminal box that is used for solar photovoltaic assembly; Comprise lid (1), cassette holder body (2); It is characterized in that: described cassette holder body (2) convexes with one and is used for covering the lid seat (21) of joining with lid (1) at the nearly medium position place of short transverse; Offer die cavity (211) in the centre of lid seat (21); In the set inside of said die cavity (211) diode (22) and first time sink electrode (23), second time sink electrode (24) are arranged, on the wall body outer of lid seat (21), be formed with the end face (213) that is used to supply the manipulator contact; Described cassette holder body (2) is formed with positive wire terminal (25), negative wire terminal (26) in the two bottom sides of short transverse; In positive wire terminal (25), be provided with sleeve (251); Described sleeve (251) is connected with an end of diode (22) through first electric conductor (252); Be provided with plug (261) in the described negative wire terminal (26), plug (261) is connected with the other end of diode (22) through second electric conductor (262); Described first time sink electrode (23) is installed in first locating ring (27); Described first locating ring (27) is realized being electrically connected through first electric conductor (252) and sleeve (251); Described second time sink electrode (24) is installed in second locating ring (28), and described second locating ring (28) is realized being electrically connected through second electric conductor (262) and plug (261); Described cassette holder body (2) is coated with on the bottom surface and is used for terminal box and the bonding rubberised layer (29) of solar module.

2. the terminal box that is used for solar photovoltaic assembly according to claim 1 is characterized in that described lid (1) is provided with buckle (11), offers on the wall body outer of said lid seat (21) to be used for the draw-in groove (212) that cooperates with buckle (11).

3. the terminal box that is used for solar photovoltaic assembly according to claim 1 is characterized in that the inner surface of described lid (1) convexes with reinforcement (13).

4. the terminal box that is used for solar photovoltaic assembly according to claim 1; It is characterized in that described lid (1) is formed with a pair of first orientation angle (12) in the two bottom sides of short transverse; Corresponding ground is formed with on the outer profile of the wall body of described lid seat (21) and is used for a pair of second orientation angle (214) that matches with first orientation angle (12).

5. the terminal box that is used for solar photovoltaic assembly according to claim 1 is characterized in that described positive and negative electrode lead terminal (25,26) adopts the plug-in type lead terminal.

6. the terminal box that is used for solar photovoltaic assembly according to claim 1; It is characterized in that offering caulking groove (215) in the last plane of described lid seat (21); Corresponding ground; On the inner surface of said lid (1), convex with and be used for the convexity (14) that matches with described caulking groove (215), through protruding (14) with realize being tightly connected of lid (1) and lid seat (21) cooperating of caulking groove (215).