CN215956348U

CN215956348U - Photovoltaic junction box with high heat dissipation performance

Info

Publication number: CN215956348U
Application number: CN202122310292.7U
Authority: CN
Inventors: 张�浩; 景美霞
Original assignee: Jiangsu Zerun New Material Co ltd
Current assignee: Jiangsu Zerun Xinneng Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-04
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a photovoltaic junction box with high heat dissipation performance, which comprises: the axial diode is directly connected with the conducting strip and comprises a diode body and two pins, one pin is connected with one end of the diode body, the other pin is connected with the other end of the diode body, at least parts of the two pins are flat parts, the flat parts are directly connected with the conducting strip, and the flat parts and the conducting strip can directly form a heat dissipation channel. According to the utility model, the conducting strip is designed into a step shape or a concave shape, and the flat part of the axial diode is directly connected with the conducting strip, so that on one hand, the contact area between the axial diode and the conducting strip can be increased, and the heat transfer is accelerated, and on the other hand, a heat dissipation channel can be formed between the flat part and the conducting strip, so that the heat can be rapidly taken away.

Description

Photovoltaic junction box with high heat dissipation performance

Technical Field

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box with high heat dissipation performance.

Background

The photovoltaic junction box is a connecting device between a solar cell array formed by solar cell modules and the solar charging control device, and is mainly used for connecting and protecting the solar cell modules, connecting electric power generated by the solar cells with an external circuit and conducting current generated by the photovoltaic modules.

The photovoltaic junction box is generally internally provided with a diode, a conducting strip and a cable, wherein a pin of the diode can be welded with the conducting strip, and the cable can be welded or riveted with the conducting strip so as to realize the communication between the diode and the cable. The diode generates heat during operation, which can be dissipated to the medium via the conducting strip. However, if the heat dissipation effect of the diode is not good, the conductivity of the diode is affected, and the diode cannot meet the use requirement of large current.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the technical problem that the heat dissipation effect of a diode in the prior art is poor is solved. The utility model provides a photovoltaic junction box with high heat dissipation performance.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a high heat dissipating photovoltaic junction box comprising: the axial diode is directly connected with the conducting plate and comprises a diode body and two pins, wherein one pin is connected with one end of the diode body, the other pin is connected with the other end of the diode body, at least parts of the two pins are flat parts, the flat parts are directly connected with the conducting plate, and the flat parts and the conducting plate can directly form a heat dissipation channel.

According to the utility model, the conducting strip is designed into a step shape or a concave shape, and the flat part of the axial diode is directly connected with the conducting strip, so that on one hand, the contact area between the axial diode and the conducting strip can be increased, and the heat transfer is accelerated, and on the other hand, a heat dissipation channel can be formed between the flat part and the conducting strip, so that the heat can be rapidly taken away.

Further, for the convenience of connection, when the conducting strip is the stairstepping, the conducting strip includes that first flat board, riser and second are dull and stereotyped, first flat board with the upper end of riser is connected, the lower extreme of riser with the second flat board is connected, first flat board to the left side of riser extends, the second is dull and stereotyped to the right side of riser extends.

Furtherly, for the convenience of connecting, when the conducting strip is the spill, the conducting strip includes that the third is dull and stereotyped, the second riser, the fourth is dull and stereotyped, the third riser and the fifth is dull and stereotyped, the upper end of second riser with the third riser is connected, the lower extreme of second riser with the left end of fourth flat board is connected, the right-hand member of fourth flat board with the lower extreme of third riser is connected, the upper end of third riser with the fifth is dull and stereotyped to be connected, the third is dull and stereotyped to the left side of second riser extends, the fifth flat board to the right side of third riser extends, the fourth flat board is located between second riser and the third riser.

Further, the flat part is connected with the first flat plate, and a heat dissipation channel is formed between the flat part and the second flat plate.

Further, the third flat plate and the fifth flat plate are both connected with the flat part, and a heat dissipation channel is formed between the flat part and the fourth flat plate.

Furthermore, one end of the flat part is connected with the first flat plate, and a heat dissipation channel is formed between the other end of the flat part and the second flat plate.

Furthermore, one end of the flat part is connected with the third flat plate, the other end of the flat part is connected with the fifth flat plate, and a heat dissipation channel is formed between the middle part of the flat part and the fourth flat plate.

The photovoltaic junction box with the high heat dissipation performance has the advantages that the axial diode is directly connected with the conducting plate, and the conducting plate is designed into a step shape or a concave shape, so that a heat dissipation channel is formed between the bent conducting plate and the axial diode. According to the utility model, the contact area between the axial diode and the conducting plate is increased, so that the heat dissipation effect can be improved, meanwhile, the heat dissipation channel can quickly take away heat, and the heat dissipation effect is further improved, thereby improving the overcurrent capacity of the axial diode.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

In the figure: 1. conducting strip, 2, axial diode, 3, heat dissipation channel, 101, first flat board, 102, first riser, 103, second flat board, 104, third flat board, 105, second riser, 106, fourth flat board, 107, third riser, 108, fifth flat board, 21, diode body, 22, pin, 221, flat portion.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1, a photovoltaic junction box with high heat dissipation performance includes: conducting strip 1, conducting strip 1 is the ladder-shaped. The axial diode 2 is directly connected with the conducting plate 1, the axial diode 2 comprises a diode body 21 and two pins 22, one pin 22 is connected with one end of the diode body 21, the other pin 22 is connected with the other end of the diode body 22, at least parts of the two pins 22 are flat parts 221, the flat parts 221 are directly connected with the conducting plate 1, and the flat parts 221 and the conducting plate 1 can directly form a heat dissipation channel 3. In the present embodiment, part or all of the two pins 22 of the axial diode 2 are flat portions 221. The flat part 221 can increase the contact area between the axial diode 2 itself and the conductive plate 1, and the heat generated by the diode body 21 can be directly and rapidly transferred to the conductive plate 1. Meanwhile, the flat part 221 may be used for welding the bus bar.

In this embodiment, the conductive sheet 1 includes a first flat plate 101, a first vertical plate 102, and a second flat plate 103, where the first flat plate 101 is connected (for example, vertically connected) to an upper end of the first vertical plate 102, a lower end of the first vertical plate 102 is connected (for example, vertically connected) to the second flat plate 103, the first flat plate 101 extends to the left side of the first vertical plate 102, and the second flat plate 103 extends to the right side of the first vertical plate 102. The flat part 221 is connected to the first plate 101 (for example, by welding), and the heat dissipation channel 3 can be formed between the flat part 221 and the second plate 103. Specifically, one end of the flat part 221 is connected to the first plate 101, and the heat dissipation channel 3 is formed between the other end of the flat part 221 and the second plate 103. That is, the other end of the flat part 221 is suspended above the second plate 103. The heat dissipation channel 3 can accelerate the heat dissipation of the flat part 221, the second flat plate 103 and the first vertical plate 102, and improve the electrical efficiency of the axial diode.

Example two

As shown in fig. 2, a photovoltaic junction box with high heat dissipation performance includes: conducting strip 1, conducting strip 1 is the concave shape. The axial diode 2 is directly connected with the conducting plate 1, the axial diode 2 comprises a diode body 21 and two pins 22, one pin 22 is connected with one end of the diode body 21, the other pin 22 is connected with the other end of the diode body 22, at least parts of the two pins 22 are flat parts 221, the flat parts 221 are directly connected with the conducting plate 1, and the flat parts 221 and the conducting plate 1 can directly form a heat dissipation channel 3. In the present embodiment, part or all of the two pins 22 of the axial diode 2 are flat portions 221. The flat part 221 can increase the contact area between the axial diode 2 itself and the conductive plate 1, and the heat generated by the diode body 21 can be directly and rapidly transferred to the conductive plate 1. Meanwhile, the flat part 221 may be used for welding the bus bar.

In this embodiment, conductive sheet 1 includes third flat plate 104, second vertical plate 105, fourth flat plate 106, third vertical plate 107, and fifth flat plate 108, the upper end of second vertical plate 105 is connected (for example, may be vertically connected) to third flat plate 107, the lower end of second vertical plate 105 is connected (for example, may be vertically connected) to the left end of fourth flat plate 106, the right end of fourth flat plate 106 is connected (for example, may be vertically connected) to the lower end of third vertical plate 107, the upper end of third vertical plate 107 is connected (for example, may be vertically connected) to fifth flat plate 108, third flat plate 104 extends to the left side of second vertical plate 105, fifth flat plate 108 extends to the right side of third vertical plate 107, and fourth flat plate 106 is located between second vertical plate 105 and third vertical plate 107. The third flat plate 104 and the fifth flat plate 108 are both connected to the flat part 221, and the heat dissipation channel 3 is formed between the flat part 221 and the fourth flat plate 106. Specifically, one end of the flat part 221 is connected to the third flat plate 104, the other end of the flat part 221 is connected to the fifth flat plate 108, and the heat dissipation channel 3 is formed between the middle part of the flat part 221 and the fourth flat plate 106. That is, the middle portion of the flat portion 221 is suspended above the fourth plate 106. The heat dissipation channel 3 can accelerate heat dissipation from the flat portion 221, the second vertical plate 105, the fourth flat plate 106, and the third vertical plate 107, and further accelerate heat dissipation.

In summary, according to the photovoltaic junction box with high heat dissipation performance of the present invention, the axial diode is directly connected to the conductive plate, and the conductive plate is designed to have a step shape or a concave shape, such that a heat dissipation channel is formed between the conductive plate and the axial diode. According to the utility model, the contact area between the axial diode and the conducting strip is increased, so that the heat dissipation effect can be improved, meanwhile, the heat dissipation channel can quickly take away heat, and the heat dissipation effect is further improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined by the scope of the claims.

Claims

1. A photovoltaic junction box with high heat dissipation performance is characterized by comprising:

a conductive sheet (1), the conductive sheet (1) is stepped or concave,

the axial diode (2), the axial diode (2) is directly connected with the conducting strip (1), the axial diode (2) comprises a diode body (21) and two pins (22), one pin (22) is connected with one end of the diode body (21), the other pin (22) is connected with the other end of the diode body (21), at least part of the two pins (22) is a flat part (221),

the flat part (221) is directly connected with the conductive sheet (1), and the flat part (221) and the conductive sheet (1) can directly form a heat dissipation channel (3).

2. The junction box according to claim 1, wherein when the conductive sheet (1) has a step shape, the conductive sheet (1) comprises a first plate (101), a first riser (102), and a second plate (103), the first plate (101) is connected to an upper end of the first riser (102), a lower end of the first riser (102) is connected to the second plate (103), the first plate (101) extends to a left side of the first riser (102), and the second plate (103) extends to a right side of the first riser (102).

3. The photovoltaic junction box with high heat dissipation performance as recited in claim 1, wherein when the conductive sheet (1) is concave, the conducting strip (1) comprises a third flat plate (104), a second vertical plate (105), a fourth flat plate (106), a third vertical plate (107) and a fifth flat plate (108), the upper end of the second vertical plate (105) is connected with the third flat plate (104), the lower end of the second vertical plate (105) is connected with the left end of the fourth flat plate (106), the right end of the fourth flat plate (106) is connected with the lower end of the third vertical plate (107), the upper end of the third vertical plate (107) is connected with the fifth flat plate (108), the third plate (104) extends to the left of the second riser (105), the fifth plate (108) extends to the right of the third riser (107), the fourth plate (106) is located between the second riser (105) and the third riser (107).

4. The high heat dissipating photovoltaic junction box of claim 2, wherein the flat portion (221) is connected to the first plate (101), and the flat portion (221) and the second plate (103) form a heat dissipating channel (3) therebetween.

5. The junction box according to claim 3, wherein the third plate (104) and the fifth plate (108) are connected to the flat portion (221), and the flat portion (221) and the fourth plate (106) form a heat dissipation channel (3).

6. The photovoltaic junction box with high heat dissipation performance according to claim 4, wherein one end of the flat part (221) is connected to the first plate (101), and a heat dissipation channel (3) is formed between the other end of the flat part (221) and the second plate (103).

7. The photovoltaic junction box with high heat dissipation performance according to claim 5, wherein one end of the flat part (221) is connected to the third plate (104), the other end of the flat part (221) is connected to the fifth plate (108), and a heat dissipation channel (3) is formed between the middle of the flat part (221) and the fourth plate (106).