CN217770022U

CN217770022U - Small-resistance welding type photovoltaic junction box

Info

Publication number: CN217770022U
Application number: CN202221631196.0U
Authority: CN
Inventors: 黄定军
Original assignee: Ningbo Chuangyuan Photovoltaic Technology Co ltd
Current assignee: Ningbo Chuangyuan Photovoltaic Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-08
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a little resistance, welded type photovoltaic terminal box, comprises a box bod and a box cover, box body and lid block in the top of box body, the top both sides of box body and all rotate and be connected with the connecting axle, every be provided with the torsional spring on the connecting axle, every fixed cover is equipped with L type pin, every on the connecting axle the bottom of L type pin all sets up with the top laminating of lid, the inside of box body is provided with the metalwork, one side of box body is provided with the cable, the one end of cable passes through resistance welding with the metalwork and is connected, the utility model discloses in use through being equipped with box body, lid, connecting axle, torsional spring, L type pin, spring and limiting plate cooperation, L type pin can carry out spacing the blockking to the lid, increases the stability that box body and lid are connected, rotates L type pin, utilizes the effort of spring to pop out the lid, and the dismouting lid of being convenient for has improved the efficiency of maintenance.

Description

Small-resistance welding type photovoltaic junction box

Technical Field

The utility model belongs to the technical field of the terminal box, more specifically say, in particular to little resistance, welded type photovoltaic terminal box.

Background

The junction box is one of the most important components in the whole photovoltaic module, plays a role in connecting and guiding the current of the whole photovoltaic module, and the firmness of the connection between the photovoltaic modules is directly related to whether the power station module can safely and stably operate; the common junction box is composed of a box cover, a box body, a wiring terminal, a diode, a connecting wire and a connector. The wiring terminal is required to be stable and firm during installation and has good weldability with a bus bar; the main function of the diode is unidirectional conduction, and the diode is divided into: the current bypass diode mainly has the functions of preventing a battery plate from being burnt, and the anti-recoil diode mainly has the functions of preventing the current of the storage battery from flowing backwards when the assembly is not illuminated; the connector and the connecting wire have good insulating performance.

Based on the above, the present inventors found that the following problems exist: most of the existing photovoltaic junction boxes are fixedly connected at the joints of the box bodies and the box covers in a buckling mode, the buckles are not conveniently opened in the mode, deformation is easy to occur after the photovoltaic junction boxes are used for a plurality of times, bending and even breakage are caused, meanwhile, the existing photovoltaic junction box cables are connected with metal pieces, riveting structures are mostly adopted for welding, and the welding process is poor in operation welding.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a small-resistance welding-type photovoltaic junction box is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a small resistance, welding formula photovoltaic terminal box to solve present photovoltaic terminal box and mostly adopt the mode of buckle to be connected fixedly in the junction of box body and lid, this kind of mode is not only not convenient for open the buckle when overhauing, moreover after using several times take place easily deformation and lead to crooked fracture even, and simultaneously, current photovoltaic terminal box cable is connected with the metalwork and mostly adopts riveted structure to carry out the welded mode, this welding process has the bad problem of operation nature welding.

The utility model discloses purpose and efficiency of little resistance, welded photovoltaic terminal box are reached by following concrete technological means:

the utility model provides a small resistor, welded photovoltaic terminal box, includes box body and lid, box body and lid block in the top of box body, the top both sides of box body and all rotate and be connected with the connecting axle, every be provided with the torsional spring on the connecting axle, every fixed cover is equipped with L type pin, every on the connecting axle the bottom of L type pin all sets up with the top laminating of lid, the inside of box body is provided with the metalwork, one side of box body is provided with the cable, the one end and the metalwork of cable pass through resistance welding and are connected.

Furthermore, the fixed cover in outside of lid is equipped with sealed frame, the draw-in groove has been seted up at the top of box body, sealed frame joint is in the inside of draw-in groove.

Furthermore, limiting plates are installed on two sides of the inner wall of the box body close to the top, and each limiting plate is fixedly connected with a spring at the top and each spring is abutted to the bottom of the box cover at one end far away from the limiting plate.

Furthermore, a wire pressing seat is installed on one side of the box body, a cable through groove is formed in the wire pressing seat, and the cable is arranged in the cable through groove.

Further, radiating grooves are formed in the front side and the rear side of the box body, and dust screens are installed inside the radiating grooves.

Furthermore, the top ends of the two connecting shafts are fixedly connected with circular plates, and the diameters of the circular plates are larger than those of the connecting shafts.

Further, the skirt edges are arranged on the periphery of the box body, and round corners and the skirt edges of the box body are provided with round corners.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses in use through being equipped with box body, lid, connecting axle, torsional spring, L type pin, spring and limiting plate cooperation, L type pin can carry out spacing the stopping to the lid, increases the stability that box body and lid are connected, rotates L type pin, utilizes the effort of spring to pop out the lid, and the dismouting lid of being convenient for has improved the efficiency of overhauing;

2. in the aspect of product welding, adopt resistance welding technique, the one end of cable passes through resistance welding with the metalwork and is connected, improves product welding quality, and the cable welds firmly safety, avoids current photovoltaic terminal box cable to be connected with the metalwork and mostly adopts riveted structure to carry out the welded mode, and this welding process has the problem appearance of operation nature welding failure.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1 of the present invention.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a side view sectional structure diagram of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a case body; 2. a box cover; 3. a limiting plate; 4. a spring; 5. a card slot; 6. a sealing frame; 7. a connecting shaft; 8. an L-shaped stop lever; 9. a circular plate; 10. a wire pressing base; 11. a cable; 12. a metal member; 13. a heat sink; 14. a dust screen; 15. a skirt edge; 16. and a cable through groove.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 4:

the utility model provides a small resistance, welding formula photovoltaic terminal box, including box body 1 and lid 2,

box body

1 and 2 blocks of lid in the top of box body 1, the top both sides of box body 1 and all rotate and be connected with connecting axle 7, be provided with the torsional spring on every connecting axle 7, fixed cover is equipped with L type pin 8 on every connecting axle 7, the bottom of every L type pin 8 all sets up with the top laminating of lid 2, the inside of box body 1 is provided with metalwork 12, one side of box body 1 is provided with cable 11, the one end of cable 11 passes through resistance welding with metalwork 12 and is connected, in the aspect of the product welding, adopt resistance welding technique, improve product welding quality, and the cable welds firmly safety, avoid current photovoltaic terminal box cable and metalwork to be connected and mostly adopt the riveted structure to carry out the welded mode, this welding technique has the bad problem appearance of operation nature welding.

In other embodiments, the fixed cover in the outside of lid 2 is equipped with sealing frame 6, and draw-in groove 5 has been seted up at the top of box body 1, and sealing frame 6 joint is in the inside of draw-in groove 5, through setting up the leakproofness that sealing frame 6 increases box body 1 and lid 2 and connect.

In other embodiments, limiting plate 3 is all installed near the top in the inner wall both sides of box body 1, and the equal fixedly connected with spring 4 in top of every limiting plate 3, the one end butt that limiting plate 3 was kept away from to every spring 4 is in the bottom of lid 2, utilizes spring 4's effort to pop out lid 2, and the dismouting lid 2 of being convenient for has improved the efficiency of overhauing.

In other embodiments, the wire pressing seat 10 is installed on one side of the box body 1, the wire pressing seat 10 is provided with a wire through groove 16 inside, the wire 11 is arranged inside the wire through groove 16, and the wire pressing seat 10 is arranged to perform protective clamping on the wire 11.

In other embodiments, the heat dissipation grooves 13 are formed in the front side and the rear side of the box body 1, the dustproof nets 14 are installed inside the two heat dissipation grooves 13, the dustproof nets 14 are arranged to prevent dust from entering the inside of the heat dissipation grooves 13, and heat dissipated by the metal piece 12 can be conducted to the outside of the box body 1 through the heat dissipation grooves 13, so that the heat dissipation performance of the device is effectively improved.

In other embodiments, a circular plate 9 is fixedly connected to the top ends of the two connecting shafts 7, the diameter of each of the two circular plates 9 is larger than that of the connecting shaft 7, and the connecting shaft 7 can be rotated by holding the circular plates 9.

In other embodiments, the skirt 15 is installed around the box body 1, and the four corners of the box body 1 and the skirt 15 are provided with round corners.

The specific use mode and function of the embodiment are as follows:

the utility model discloses in, during the use, hold plectane 9 and outwards rotate connecting axle 7, make the torsional spring compressed, draw-in groove 5 department is kept away from to L type pin 8, push lid 2 and sealed frame 6 inside draw-in groove 5 of box body 1 downwards, 2 extrusion spring 4 of lid this moment, loosen plectane 9, the torsional spring kick-backs and drives L type pin 8 and inwards rotate, L type pin 8 can carry out spacing blockking to lid 2, increase the stability that box body 1 and lid 2 are connected, when needs are dismantled lid 2, hold plectane 9 and outwards rotate connecting axle 7, make the torsional spring compressed, L type pin 8 keeps away from draw-in groove 5 department, at this moment, utilize spring 4's effort to pop out lid 2, be convenient for dismouting lid 2, the efficiency of maintenance has been improved, heat accessible radiating groove 13 conduction to box body 1 outside that metalwork 12 gived off, the effectual thermal diffusivity that has improved this device, in the product welding aspect, adopt resistance welding technique, the one end and the riveting of cable 11 are connected through resistance welding with metalwork piece 12, improve product welding quality, and the firm safety of cable, avoid current photovoltaic cable and terminal box connection to adopt this welding structure to carry out welding operation bad operation, there is the operation problem.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a small resistor, welded type photovoltaic terminal box which characterized in that: including box body (1) and lid (2), box body (1) and lid (2) block in the top of box body (1), box body (1) and top both sides all rotate and are connected with connecting axle (7), every be provided with the torsional spring on connecting axle (7), every fixed cover is equipped with L type pin (8), every on connecting axle (7) the bottom of L type pin (8) all sets up with the top laminating of lid (2), the inside of box body (1) is provided with metalwork (12), one side of box body (1) is provided with cable (11), the one end of cable (11) is connected through resistance welding with metalwork (12).

2. The low resistance, soldered photovoltaic junction box of claim 1, wherein: the outside fixed cover of lid (2) is equipped with sealed frame (6), draw-in groove (5) have been seted up at the top of box body (1), sealed frame (6) joint is in the inside of draw-in groove (5).

3. The low resistance, soldered photovoltaic junction box of claim 1, wherein: limiting plates (3) are all installed near the top on the two sides of the inner wall of the box body (1), each limiting plate (3) is fixedly connected with springs (4) at the top and each spring (4) is far away from one end of each limiting plate (3) and abuts against the bottom of the box cover (2).

4. The low resistance, soldered photovoltaic junction box of claim 1, wherein: one side of the box body (1) is provided with a wire pressing seat (10), a cable through groove (16) is formed in the wire pressing seat (10), and the cable (11) is arranged in the cable through groove (16).

5. The low resistance, soldered photovoltaic junction box of claim 1, wherein: radiating grooves (13) have all been seted up to the front side and the rear side of box body (1), two dust screen (14) are all installed to the inside of radiating groove (13).

6. The low resistance, soldered photovoltaic junction box of claim 1, wherein: the top ends of the two connecting shafts (7) are fixedly connected with circular plates (9), and the diameters of the circular plates (9) are larger than those of the connecting shafts (7).

7. The low resistance, soldered photovoltaic junction box of claim 1, wherein: the novel box is characterized in that skirt edges (15) are arranged on the periphery of the box body (1), and round corners are arranged at four corners of the box body (1) and the skirt edges (15).