CN201946927U - Solar Junction Box - Google Patents

Abstract

The utility model discloses a solar junction box, which comprises an insulating body, a face cover matched with the insulating body, an electrical element and a wire fixing device arranged in the insulating body, wherein the insulating body is provided with an accommodating space with an opening facing the face cover; the wire clip is provided with a first base part, a wire clamping part and an extending part arranged between the first base part and the wire clamping part, the first base part is provided with a first opening and a second opening, and the part, close to the first opening end, of the second opening is bent downwards to form a contact part; the elastic sheet is provided with a second base part clamped at the bottom wall of the accommodating space, a fixed part and an elastic part arranged below the second opening; the fixing part is provided with a through hole which vertically penetrates through the fixing part, and the contact part extends into the through hole and abuts against one side wall of the through hole. Thereby the utility model is not only simple in structure but also convenient in use.

Description

Solar Junction Box

technical field

The utility model relates to a solar junction box, in particular to a solar junction box for quickly connecting and disconnecting cables.

Background technique

Junction boxes are often used in solar energy systems, and the hardware terminals in the junction box need to be connected with external cables. Traditional solar junction boxes often use contact, soldering or screw connections. Because the contact connection is easy to vibrate and disconnect during assembly, the connection is not reliable, and the connection area is small and the conduction performance is not good. Soldering connection or screw connection is a lot of work, because it needs to be connected after assembly, and the space of the junction box is limited, which brings great limitations to the connection work. Moreover, there are risks such as high-temperature soldering falling off and disconnecting, and screws not being tightened, falling off and disconnecting.

Utility model content

The utility model provides a solar junction box for quickly connecting and disconnecting cables aiming at the defects of the above-mentioned background technology.

In order to achieve the above purpose, the utility model discloses a solar junction box, which includes an insulating body, a cover matching with the insulating body, electrical components and a wire fixing device arranged in the insulating body, the The insulating body is provided with a storage space with an opening facing the cover, the electrical components and the wire fixing device are accommodated in the storage space, and the wire fixing device includes a terminal clamp and a Elastic sheet; the terminal clamp has a first base portion extending laterally and fixed on the bottom wall of the accommodation space, a clamping portion and an extension portion arranged between the first base and the clamping portion, the first The base is provided with a first opening and a second opening on one side of the first opening, the end of the second opening near the first opening is bent downward to form a contact portion; the elastic piece has a locking a second base at the bottom wall of the accommodation space, a fixing part extending from one end of the second base, and an elastic part extending from the free end of the fixing part and disposed below the second opening; The fixing part is provided with a through hole penetrating the fixing part up and down, and the contact part protrudes into the through hole and abuts against a side wall of the through hole.

Further, the two sides of the first base of the terminal clip are bent downward to form clamping parts that are symmetrical to each other and clamped at the bottom wall of the receiving space; the second base of the elastic piece is U-shaped and has a first A free end and a second free end, the first free end of the second base extends to one side to form a flat plate-shaped fixing portion, the second free end of the second base extends to the opposite side and is bent downward to form A clamping portion clamped at the bottom wall of the receiving space; the free end of the fixing portion is bent downwards and extends toward the second base to form the elastic portion.

Further, the two sides of the extension part of the terminal clip extend upwards with mutually symmetrical positioning parts, and the positioning parts are provided with positioning grooves that pass through the positioning parts front and back, and the electrical components are erected on the adjacent terminal clips Above, the two ends of the electrical components are set in the corresponding positioning grooves.

Further, the side of the insulating body protrudes outward and is provided with a plurality of first connecting ears spaced apart from each other, and the first connecting ear is provided with a through groove that runs through the first connecting ear up and down, and the side of the through groove The wall is provided with a buckle portion extending toward the face cover and beyond the upper edge of the first connecting ear; the edge of the face cover extends outward to form a number of mutually spaced and corresponding to the first connecting ear The second connecting ear, the second connecting ear is provided with a buckling slot that passes through the second connecting ear up and down and cooperates with the buckling part.

Further, the end of the buckle portion extends outward to form a hook portion that is locked in the buckle groove.

To sum up, the solar junction box of the present utility model is provided with a terminal clip and a shrapnel matched with the wire clip, so the cable can be quickly disconnected by the elastic force of the shrapnel, so that the structure is simple and easy to use.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model;

Fig. 2 is the exploded schematic diagram of the utility model shown in Fig. 1;

Fig. 3 is a schematic structural view of the utility model junction clip shown in Fig. 1;

Fig. 4 is a sectional view of the utility model shown in Fig. 1 after removing the cover.

Detailed ways

In order to further understand the features, technical means, and specific objectives and functions of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Please refer to FIG. 1 , the solar junction box 1 of the present utility model includes an insulating body 10 , a cover 20 matched with the insulating body 10 , electrical components 30 and a wire fixing device 40 disposed in the insulating body 10 .

Please refer to FIGS. 1-2 , the insulating body 10 is provided with a substantially rectangular receiving space 11 with an opening facing the cover 20 . The electrical components 30 and the wire fixing device 40 are accommodated in the accommodation space 11 . A side wall of the receiving space 11 is provided with two outlet holes (not shown) passing through the side wall and spaced apart from each other. A plurality of first connecting ears 13 spaced apart from each other are protruded outwardly from the side of the insulating body 10 . The first connecting ear 13 is provided with a through groove 131 penetrating through the first connecting ear 13 up and down. A buckling portion 14 extending toward the cover 20 and beyond the upper edge of the first connecting ear 13 is formed on a sidewall of the through groove 131 . An end of the locking portion 14 extends outward to form a hook portion 141 . The edge of the cover 20 extends outward to form a plurality of second connecting ears 21 spaced apart from each other and corresponding to the first connecting ears 13 . The second connecting ear 21 is provided with a buckling groove 211 passing through the second connecting ear 21 up and down and matching with the buckling portion 14 . The hook portion 141 is locked in the locking groove 211 .

Please refer to FIG. 1 to FIG. 4 , the wire fixing device 40 includes a wire clip 41 and an elastic piece 42 matched with the wire clip 41 . In this embodiment, the clamp 41 and the elastic piece 42 are designed to have an interference fit of 0.2 mm. The clamp 41 has a first base 411 extending laterally and fixed on the bottom wall of the receiving space 11 , a clamping part 412 and an extension part between the first base 411 and the clamping part 412 413. The first base portion 411 defines a first opening 414 and a second opening 415 disposed on one side of the first opening 414 . An end of the second opening 415 near the first opening 414 is bent downward to form a contact portion 4151 . Both sides of the first base portion 411 of the terminal clip 41 are bent downward to form clamping portions 4111 that are symmetrical to each other and are clamped at the bottom wall of the receiving space 11 . Two symmetrical positioning portions 4131 extend upward from both sides of the extension portion 413 of the terminal clip 41 . The positioning portion 4131 is provided with a positioning groove 4132 passing through the positioning portion 4131 front and back. The electrical components 30 are erected on the adjacent terminal clips 41 . Both ends of the electrical component 30 are disposed in corresponding positioning grooves 4132 .

Please continue to refer to FIG. 1 to FIG. 4 , the elastic piece 42 has a U-shaped second base portion 421 clamped at the bottom wall of the receiving space 11 . The second base portion 421 has a first free end and a second free end. The first free end of the second base portion 421 extends to one side to form a flat plate-shaped fixing portion 422 . The second free end of the second base portion 421 extends to the opposite side and is bent downward to form a locking portion 423 that is locked on the bottom wall of the receiving space 11 . The free end of the fixing portion 422 is bent downwards and extends toward the second base portion 421 to form an elastic portion 424 disposed below the second opening 415 . The fixing portion 422 is provided with a through hole 4221 penetrating through the fixing portion 422 up and down, and the contact portion 4151 extends into the through hole 4221 and abuts against a side wall of the through hole 4221 .

Please continue to refer to FIG. 1 to FIG. 4 , when in use, firstly, the electrical components 30 and the wire fixing device 40 are arranged in the receiving space 11 of the insulating body 10 . Insert a flat-head screwdriver or similar flat tool into the first opening 414 of the terminal clamp 41 to apply force to the elastic portion 424 of the elastic piece 42, so that the elastic piece 42 is elastically deformed; the contact of the terminal clamp 41 The portion 4151 is separated from the side wall of the through hole 4221 of the elastic piece 42 ; thus, one end of the cable can be inserted between the contact portion 4151 of the clamp 41 and the side wall of the through hole 4221 . Then stop applying force to the elastic piece 42 , the elastic piece 42 will return to its original state through its own elasticity, and the cable is clamped between the contact portion 4151 and the side wall of the through hole 4221 to achieve the purpose of conduction. The opposite end of the cable is clamped on the clamping portion 412 of the terminal clamp 41 , and passes through the outlet hole to protrude out of the receiving space 11 .

Please continue to refer to Figures 1 to 4, when you want to remove the cable, you only need to insert a flat-head screwdriver or a similar flat tool into the first opening 414 of the clamp 41 to apply force to the elastic piece The elastic part 424 of 42, so that the elastic piece 42 is elastically deformed; the contact part 4151 of the terminal clip 41 is separated from the side wall of the through hole 4221 of the elastic piece 42; the cable is removed from the fixing device 40 down to disconnect the electrical connection. Then stop applying force to the elastic piece 42, and the elastic piece 42 will return to its original state through its own elasticity. Therefore, the solar junction box 1 of the utility model is not only firmly connected, the contact surface between the cable and the wire fixing device is large, but also has good conduction performance, and it is convenient and quick to disconnect the cable; thus greatly reducing the workload and ensuring the solar energy The working reliability of the junction box 1 prolongs the service life of the solar junction box 1 .

To sum up, the solar junction box 1 of the present utility model is provided with the junction clip 41 and the spring piece 42 matched with the junction clip 41, so the cable can be quickly disconnected by the elastic force of the spring piece 42, so that not only the structure is simple but also Easy to use.

The above-mentioned embodiment only expresses one implementation mode of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the scope of the present utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present utility model should be based on the appended claims.

Claims (5)

1. solar junction box, it comprises an insulating body (10), a cover (20) that matches with described insulating body (10), is located at electric elements (30) and solidus device (40) in the described insulating body (10), described insulating body (10) is provided with the receiving space (11) of an opening towards described cover (20), described electric elements (30) and solidus device (40) are contained in the described receiving space (11), it is characterized in that: described solidus device (40) comprises a binding clip (41) and a shell fragment (42) that matches with described binding clip (41); Described binding clip (41) have a horizontal expansion and be fixedly arranged on first base portion (411) at receiving space (11) diapire place, a clamp portion (412) and is located at the extension (413) between described first base portion (411) and the clamp portion (412), described first base portion (411) is provided with second opening (415) that one first opening (414) and is located at described first opening (414) one sides, and nearly first opening (414) end of described second opening (415) is bent to form a contact site (4151) downwards; Described shell fragment (42) have fixed part (422) that second base portion (421) that is arranged in receiving space (11) diapire place, extends to form by an end of described second base portion (421), and a free end by described fixed part (422) extend to form and be located at the elastic portion (424) of second opening (415) below; Described fixed part (422) is provided with a through hole (4221) that runs through described fixed part (422) up and down, and described contact site (4151) stretches in the described through hole (4221) and is resisted against on the sidewall of described through hole (4221).

2. solar junction box according to claim 1 is characterized in that: the both sides of first base portion (411) of described binding clip (41) are bent with symmetrically and are arranged in the clamping part (4111) at receiving space (11) diapire place downwards; Second base portion (421) of described shell fragment (42) takes the shape of the letter U and has first free end and second free end, first free end of described second base portion (421) extends to form flat fixed part (422) to a side, and second free end of described second base portion (421) extends and is bent to form a holding section (423) that is fastened in receiving space (11) diapire place downwards to opposite side; The free end of described fixed part (422) bends the back downwards, extends to form described elastic portion (424) to second base portion (421).

3. solar junction box according to claim 2, it is characterized in that: the both sides of the extension (413) of described binding clip (41) extend upward symmetrical location division (4131), the location notch (4132) that runs through described location division (4131) before and after described location division (4131) is provided with, described electric elements (30) are set up on the adjacent binding clip (41), and the two ends of electric elements (30) are located in the corresponding location notch (4132).

4. solar junction box according to claim 3, it is characterized in that: the side of described insulating body (10) outwards convexes with first engaging lug (13) of some spaces, described first engaging lug (13) be provided with one run through described first engaging lug (13) up and down run through groove (131), the described sidewall that runs through groove (131) is provided with one and extends and exceed the clamping part (14) of described first engaging lug (13) top edge towards cover (20); The edge of described cover (20) stretch out be formed with some spaces and with corresponding second engaging lug of described first engaging lug (13) (21), described second engaging lug (21) is provided with a buckle slot (211) that runs through described second engaging lug (21) up and down and match with described clamping part (14).

5. solar junction box according to claim 4 is characterized in that: the end of described clamping part (14) stretches out and is formed with a pothook (141) that is arranged in the described buckle slot (211).

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