CN219145336U

CN219145336U - Novel axial diode photovoltaic junction box

Info

Publication number: CN219145336U
Application number: CN202223589825.0U
Authority: CN
Inventors: 刘逸飞; 丁而立
Original assignee: Jiangsu Huilang Electronic Technology Co ltd
Current assignee: Jiangsu Huilang Electronic Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-06
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a novel axial diode photovoltaic junction box which comprises a box body, a cover plate, terminals, an axial diode and a cable, wherein the box body is in a transverse strip shape, the cover plate is detachably fixed at the top of the box body, the terminals are two metal sheets which are transversely arranged at intervals, one longitudinal end of each terminal is provided with an extended diode connecting part, the top of each terminal is provided with a bus bar connecting part, the transverse two ends of each terminal are respectively provided with a first folding edge and a second folding edge which extend downwards, the axial diode is transversely arranged between the two terminals and is arranged at one side of the diode connecting part, the two ends of the axial diode are provided with L-shaped pins which extend out, the bottom of each diode connecting part is connected with the position of the L-shaped pin, which is close to the axial diode, one end of each L-shaped pin, which is far away from the axial diode, is connected with the cable, and the inner bottom of the box body is provided with a boss, and the terminals are attached and fixed on the boss. The novel axial diode photovoltaic junction box is convenient to install and excellent in heat dissipation performance.

Description

Novel axial diode photovoltaic junction box

Technical Field

The utility model relates to a novel axial diode photovoltaic junction box, and belongs to the technical field of photovoltaics.

Background

The solar junction box is a connector between the solar cell matrix formed by the solar cell components and the solar charging control device, and provides a combined connection scheme of the solar cell panel for users. The double-glass solar cell module consists of two glass layers on the front side and the back side and a solar cell positioned in the middle of the glass layers. The insulation of the glass is superior to that of the back plate, the double-glass assembly can meet higher system voltage, the abrasion resistance advantage is obvious, and the double-glass assembly is suitable for photovoltaic power stations in areas with more acid rain or large salt mist. Because of its structure, unlike a back-plate solar cell module, a split junction box is generally employed.

Chinese patent document CN113328698B discloses an axial diode junction box and a method of manufacturing the same, comprising an axial diode and a junction box body, the axial diode being mounted inside the junction box body; the axial diode comprises a diode body, a first pin and a second pin, one end of the diode body is connected with the first pin, and the other end of the diode body is connected with the second pin; defining the direction of the diode body, which is close to the junction box body, as the front, wherein the first pin comprises a first connecting part and a first flat part, one end of the first connecting part is connected with one end of the diode body, the other end of the first connecting part is connected with the first flat part, the second pin comprises a second connecting part and a second flat part, one end of the second connecting part is connected with the other end of the diode body, and the other end of the second connecting part is connected with the second flat part; the diode body is clamped with the junction box body. The utility model simplifies the production process, reduces the cost of the product, improves the reliability of the product and improves the production efficiency of the production line. The patent has complex structure and low heat dissipation performance.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a novel axial diode photovoltaic junction box which is convenient to install and excellent in heat dissipation performance.

The utility model provides the following technical scheme for solving the technical problems: the utility model provides a novel axial diode photovoltaic terminal box, includes box body, apron, terminal, axial diode and cable, the box body is rectangular form, in axial diode and the terminal were located the box body, the cable penetrates in the box body, the apron is removable to be fixed the top of box body, the axis direction of the encapsulation portion of axial diode sets up along the length direction of box body, the both ends of axial diode are equipped with the pin of buckling, and one of them pin is kept away from the one end of encapsulation portion and is linked to each other with the cable, the terminal is two sheetmetals that set up side by side interval and is located the both ends of axial diode encapsulation portion respectively, the one end of terminal is equipped with diode connecting portion, diode connecting portion welded fastening is on corresponding pin, the other end top of terminal is equipped with the busbar connecting portion that is used for welding the busbar.

The packaging part of the axial diode is biased to one side of the box body, the pin of the axial diode is L-shaped, and the diameter of the pin is 2 mm-2.6 mm; the inner side bottom of the box body is provided with an arc-shaped groove for accommodating the axial diode, and the inner side wall of the box body is provided with a box body reinforcing rib corresponding to the axial diode in position.

A boss is arranged at the bottom of the inner side of the box body, and the terminal is attached to the upper part of the boss; the boss is provided with a limiting post, the terminal is provided with a limiting through hole matched with the limiting post, and the limiting post penetrates through the corresponding limiting through hole and fixes the terminal on the boss after self hot pressing deformation.

The two terminals are provided with first flanges extending downwards on one sides opposite to each other, second flanges extending downwards are arranged on one sides opposite to the two terminals, and the length of the first flanges is smaller than that of the second flanges.

The box body is provided with a buckle, the side edge of the cover plate is provided with a bayonet matched with the buckle in a clamping way, and the cover plate is fixed on the box body in a clamping way.

The inside bottom of box body is equipped with two rows of lugs that transversely set up, and two rows of lugs interval sets up, and every row of lug is equipped with 3 and interval setting, is equipped with the busbar through groove that two intervals set up between two rows of lugs, the busbar through groove runs through the box body bottom.

The lug is obliquely and oppositely arranged, the top of the lug abuts against the second flange, and the bus bar through groove is arranged between the two terminals.

The box body one end is equipped with the operation mouth, and the adjacent one end of operation mouth is equipped with the ply-yarn drill groove, the both sides of operation mouth are equipped with the reinforcing plate.

The novel axial diode photovoltaic junction box further comprises a wire clip, wherein the cable extends out of the box body, and the wire clip is fixedly connected in the wire clip groove through ultrasonic welding so as to limit the cable.

A handle is arranged at one side outside the box body.

The utility model has the positive effects that:

the novel axial diode photovoltaic junction box has the advantages that the box body is strip-shaped, the box body is arranged on the double-glass solar cell assembly, the cell piece is not shielded, and the consumption of cables can be reduced to the greatest extent. The pin of axial diode adds thick buckling, directly with cable welded fastening, the structure is succinct, stability is high, convenient assembling. The terminal is two sheetmetals that the interval set up side by side and is located axial diode encapsulation portion's both ends welded fastening respectively on the pin, and two survey of terminal are equipped with downwardly extending's first hem and second hem respectively, and it is convenient to install, can effectual increase heat radiating area, promotes the radiating effect, is equipped with busbar connecting portion on the terminal and also makes busbar installation more convenient. The inboard bottom of box body is equipped with the boss, and the terminal laminating is just fixed on the boss, and space design is ingenious, and the furthest increases heat dissipation volume. The novel axial diode photovoltaic junction box disclosed by the utility model ensures that the diode connection and the bus bar installation are convenient, and simultaneously, the heat dissipation effect is improved to the greatest extent.

Drawings

The novel axial diode photovoltaic junction box of the present utility model is further described below with reference to the accompanying drawings.

Fig. 1 is an exploded view of the novel axial diode photovoltaic junction box of this embodiment 1;

FIG. 2 is a schematic view of the structure of the case in FIG. 1;

fig. 3 is a schematic diagram of the overall structure of the novel axial diode photovoltaic junction box of embodiment 1;

fig. 4 is a schematic diagram of the overall structure of the novel axial diode photovoltaic junction box of example 2.

The above reference numerals are as follows:

the box body 1, the boss 100, the bus bar through groove 101, the convex block 102, the arc-shaped groove 103, the box body reinforcing rib 104, the limit post 105, the buckle 106, the operation opening 109, the line clip groove 110, the reinforcing plate 111, the handle 112, the cover plate 2, the bayonet 21, the terminal 3, the first folded edge 31, the second folded edge 32, the limit through hole 33, the bus bar soldering part 34, the diode connecting part 38, the axial diode 4, the pin 41, the cable 5 and the line clip 7.

Detailed Description

Example 1

See fig. 1 to 3, the novel axial diode photovoltaic terminal box of this embodiment, including box body 1, apron 2, terminal 3, axial diode 4 and cable 5, box body 1 is rectangular form, in box body 1 was located to axial diode 4 and terminal 3, cable 5 penetrated in box body 1, apron 2 is detachably fixed at the top of box body 1, the axis direction of the encapsulation portion of axial diode 4 sets up along the length direction of box body 1, the both ends of axial diode 4 are equipped with the pin 41 of buckling, one of them pin 41 is kept away from the one end of encapsulation portion and is linked to each other with cable 5, terminal 3 is the sheetmetal that two intervals set up side by side and is located the both ends of axial diode 4 encapsulation portion respectively, the one end of terminal 3 is equipped with diode connecting portion 38, diode connecting portion 38 welded fastening is on corresponding pin 41, the other end top of terminal 3 is equipped with the busbar connecting portion 37 that is used for welding the busbar.

The package part of the axial diode 4 is offset to one side of the box body 1, the pin 41 of the axial diode 4 is L-shaped, and the diameter of the pin 41 is 2.6mm. The bottom of the inner side of the box body 1 is provided with an arc-shaped groove 103 for accommodating the axial diode 4, and the inner side wall of the box body 1 is provided with a box body reinforcing rib 104 corresponding to the axial diode 4 in position.

The bottom of the inner side of the box body 1 is provided with a boss 100, and the terminal 3 is attached above the boss 100. The boss 100 is provided with a limit post 105, the terminal 3 is provided with a limit through hole 33 matched with the limit post 105, and the limit post 105 passes through the corresponding limit through hole 33 and fixes the terminal 3 on the boss 100 after self hot-pressing deformation.

The opposite side of the two terminals 3 is provided with a first fold 31 extending downwards, and the opposite side of the two terminals 3 is provided with a second fold 32 extending downwards, wherein the length of the first fold 31 is less than that of the second fold 32. Through the setting of first flange 31 and second flange 32, can effectual increase radiating area, promote the radiating effect.

The box body 1 is provided with a buckle 106, the side edge of the cover plate 2 is provided with a bayonet 21 which is matched with the buckle 106 in a clamping way, and the cover plate 2 is fixedly clamped on the box body 1.

Two rows of protruding blocks 102 which are transversely arranged are arranged at the bottom of the inner side of the box body 1, the two rows of protruding blocks 102 are arranged at intervals, 3 protruding blocks 102 are arranged at intervals, two bus bar through grooves 101 which are arranged at intervals are arranged between the two rows of protruding blocks 102, and the bus bar through grooves 101 penetrate through the bottom of the box body 1.

The protruding block 102 is diagonally opposite, the top of the protruding block 102 abuts against the second flange 32, and the bus bar through groove 101 is provided between the two terminals 3.

In order to ensure the stability of the operation opening 109, one end of the box body 1 is provided with the operation opening 109, one end adjacent to the operation opening is provided with a line clamping groove 110, and two sides of the operation opening 109 are provided with reinforcing plates 111.

Example 2

Referring to fig. 4, the novel axial diode photovoltaic junction box of this embodiment is the same as that of embodiment 1 except that: without the line card 7 and the cable 5, one side outside the box body 1 is provided with a grip 112.

It should be understood that the above-described embodiments are merely examples for clearly illustrating the embodiments of the present utility model, and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While remaining within the scope of the utility model, obvious variations or modifications are incorporated by reference herein.

Claims

1. The utility model provides a novel axial diode photovoltaic terminal box, includes box body (1), apron (2), terminal (3), axial diode (4) and cable (5), box body (1) are rectangular form, in box body (1) is located to axial diode (4) and terminal (3), in cable (5) penetrated box body (1), apron (2) detachable fix the top of box body (1), its characterized in that: the axial direction of the encapsulation portion of axial diode (4) sets up along the length direction of box body (1), the both ends of axial diode (4) are equipped with pin (41) of buckling, and one of them pin (41) is kept away from the one end of encapsulation portion and is linked to each other with cable (5), terminal (3) are two sheetmetals that set up side by side interval and are located the both ends of axial diode (4) encapsulation portion respectively, the one end of terminal (3) is equipped with diode connecting portion (38), diode connecting portion (38) welded fastening is on corresponding pin (41), the other end top of terminal (3) is equipped with busbar connecting portion (37) that are used for welding the busbar.

2. The novel axial diode photovoltaic junction box of claim 1, wherein: the packaging part of the axial diode (4) is offset to one side of the box body (1), the pin (41) of the axial diode (4) is L-shaped, and the diameter of the pin (41) is 2-2.6 mm; the inner bottom of the box body (1) is provided with an arc-shaped groove (103) for accommodating the axial diode (4), and the inner side wall of the box body (1) is provided with a box body reinforcing rib (104) corresponding to the axial diode (4).

3. The novel axial diode photovoltaic junction box of claim 1, wherein: a boss (100) is arranged at the bottom of the inner side of the box body (1), and the terminal (3) is attached to the upper part of the boss (100); the terminal is characterized in that a limiting post (105) is arranged on the boss (100), a limiting through hole (33) matched with the limiting post (105) is arranged on the terminal (3), and the terminal (3) is fixed on the boss (100) after the limiting post (105) passes through the corresponding limiting through hole (33) and is deformed through self hot pressing.

4. A novel axial diode photovoltaic junction box according to claim 3, characterized in that: the two terminals (3) are provided with first flanges (31) extending downwards on one sides opposite to each other, second flanges (32) extending downwards are arranged on one sides opposite to the two terminals (3), and the length of the first flanges (31) is smaller than that of the second flanges (32).

5. The novel axial diode photovoltaic junction box of claim 1, wherein: the box body (1) is provided with a buckle (106), the side edge of the cover plate (2) is provided with a bayonet (21) which is matched with the buckle (106) in a clamping way, and the cover plate (2) is fixedly clamped on the box body (1).

6. A novel axial diode photovoltaic junction box according to claim 3, characterized in that: two rows of bumps (102) are transversely arranged at the bottom of the inner side of the box body (1), the two rows of bumps (102) are arranged at intervals, 3 bumps (102) are arranged at intervals, two bus bar through grooves (101) are arranged between the two rows of bumps (102) at intervals, and the bus bar through grooves (101) penetrate through the bottom of the box body (1).

7. The novel axial diode photovoltaic junction box of claim 6, wherein: the bumps (102) are obliquely and oppositely arranged, the tops of the bumps (102) are propped against the second flanges (32), and the bus bar through grooves (101) are arranged between the two terminals (3).

8. The novel axial diode photovoltaic junction box of claim 1, wherein: one end of the box body (1) is provided with an operation port (109), one end adjacent to the operation port is provided with a line clamping groove (110), and two sides of the operation port (109) are provided with reinforcing plates (111).

9. The novel axial diode photovoltaic junction box of claim 8, wherein: the cable clamp is characterized by further comprising a cable clamp (7), the cable (5) extends out of the box body (1), and the cable clamp (7) is fixedly connected in the cable clamp groove (110) through ultrasonic welding so as to limit the cable (5).

10. The novel axial diode photovoltaic junction box of any of claims 1 to 9, wherein: one side outside the box body (1) is provided with a handle (112).