CN215581057U - Photovoltaic junction box mounting structure - Google Patents

Photovoltaic junction box mounting structure Download PDF

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Publication number
CN215581057U
CN215581057U CN202121791443.9U CN202121791443U CN215581057U CN 215581057 U CN215581057 U CN 215581057U CN 202121791443 U CN202121791443 U CN 202121791443U CN 215581057 U CN215581057 U CN 215581057U
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vertical
flat
junction box
directly welded
plate
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CN202121791443.9U
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Chinese (zh)
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张�浩
王建华
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Jiangsu Zerun Xinneng Technology Co ltd
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Jiangsu Zerun New Material Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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Abstract

The utility model discloses a photovoltaic junction box mounting structure, which comprises: the junction box body is provided with an accommodating cavity, and an axial diode is accommodated in the accommodating cavity; the axial diode comprises a diode body, a first pin and a second pin, the direction of the diode body close to the inner wall of the junction box body is taken as a front X, one end of the diode body is fixedly connected with the first pin, the other end of the diode body is fixedly connected with the second pin, the first pin is provided with a first flat part, and the second pin is provided with a second flat part; the first flat part is flat or bent flat; the second flat part is flat or bent flat; one end of the cable penetrates through the junction box body to enter the accommodating cavity, and the cable is directly welded with the second flat part; one bus bar is directly welded to the first flat portion, and the other bus bar is directly welded to the second flat portion. By utilizing the utility model, the quick connection between the diode and the cable and the quick connection between the diode and the bus bar can be realized.

Description

Photovoltaic junction box mounting structure
Technical Field
The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic junction box mounting structure.
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.
At present, the axial diode in the photovoltaic junction box is mostly used as a connecting piece through a conducting strip, the diode is welded on the conducting strip, a bus bar is welded on the conducting strip, and a cable is also welded on the conducting strip so as to realize connection. For example, chinese patent publication No. CN204539079U discloses a photovoltaic junction box, which comprises an upper cover, a box body, a conductive sheet, a secondary sheet, a bottom plate, wherein the bottom plate is connected to the lower end of the box body, the lower end of the box body is provided with a buckle, the edge of the bottom plate is provided with a clamping groove mutually matched with the buckle, a cavity for embedding the conductive sheet is arranged in the box body, the edge of the cavity is provided with a convex bump, the lower end of the conductive sheet is mutually abutted to the upper end of the bottom plate, the upper end of the bottom plate is provided with a plurality of positioning columns, the conductive sheet is provided with positioning holes for the positioning columns to pass through and be matched with, the conductive sheet is further provided with a plurality of connection welding spots, the secondary sheet is provided with conductive pins extending outside, the conductive pins are connected with the connection welding spots through electric welding, and the upper cover is abutted to and buckled on the upper end of the box body. The installation mode makes the interior solder joint of photovoltaic terminal box more, and preparation and installation technology are comparatively complicated.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to solve the technical problem that a diode in a photovoltaic junction box in the prior art cannot be directly connected and mounted with a cable and a bus bar, the utility model provides a photovoltaic junction box mounting structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a photovoltaic junction box mounting structure comprising: the junction box comprises a junction box body, a light source and a light source, wherein the junction box body is provided with an accommodating cavity, and an axial diode is accommodated in the accommodating cavity; the axial diode comprises a diode body, a first pin and a second pin, the direction of the diode body close to the inner wall of the junction box body is taken as a front X, one end of the diode body is fixedly connected with the first pin, the other end of the diode body is fixedly connected with the second pin, the first pin is provided with a first flat part, and the second pin is provided with a second flat part; the first flat part is in a flat plate shape or a bent flat plate shape; the second flat part is in a flat plate shape or a bent flat plate shape; one end of the cable penetrates through the junction box body to enter the accommodating cavity, and the cable is directly welded with the second flat part; two bus bars, one of the bus bars being directly welded to the first flat portion and the other of the bus bars being directly welded to the second flat portion.
Furthermore, the bottom surface of the junction box body is provided with a first opening and a second opening, one end of one bus bar penetrates through the first opening to be directly welded with the first flat part, and one end of the other bus bar penetrates through the second opening to be directly welded with the second flat part.
Further, the first flat part is a bent flat plate shape, and the second flat part is a bent flat plate shape; the first flat part comprises a first transverse surface and a first vertical surface, the first transverse surface is vertically connected with the first vertical surface, the first transverse surface is parallel to the bottom surface of the junction box body, and the first vertical surface is vertical to the bottom surface of the junction box body; the second flat part comprises a second transverse surface and a second vertical surface, the second transverse surface is vertically connected with the second vertical surface, the second transverse surface is parallel to the bottom surface of the junction box body, and the second vertical surface is vertical to the bottom surface of the junction box body; the cable is directly welded to the second transverse surface, one of the bus bars is directly welded to the first vertical surface, and the other of the bus bars is directly welded to the second vertical surface.
Further, the first vertical surface extends rearward of the first lateral surface, and the second vertical surface extends rearward of the second lateral surface; or the first vertical surface extends towards the rear of the first transverse surface, and the second vertical surface extends towards the front of the second transverse surface; or, the first vertical surface extends above the first transverse surface, and the second vertical surface extends above the second transverse surface.
Further, the bus bars include a first vertical portion and a first horizontal portion, the first vertical portion being vertically connected to the first horizontal portion, the first vertical portion of one of the bus bars being directly welded to the first vertical surface, and the first vertical portion of the other of the bus bars being directly welded to the second vertical surface.
Further, the first flat part is in a bent flat shape, the second flat part is in a bent flat shape, the first flat part comprises a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are vertically connected, the first vertical plate is vertical to the bottom surface of the junction box body, and the second vertical plate is vertical to the bottom surface of the junction box body; the second flat part comprises a third vertical plate and a fourth vertical plate, the third vertical plate and the fourth vertical plate are vertically connected, the third vertical plate is vertical to the bottom surface of the junction box body, and the fourth vertical plate is vertical to the bottom surface of the junction box body; the cable with the third riser direct weld, one the busbar with the second riser direct weld, another the busbar with the fourth riser direct weld.
Further, the second riser extends rearward of the first riser, and the fourth riser extends rearward of the third riser; the busbar includes second vertical portion and second horizontal part, the second vertical portion with the second horizontal part is connected perpendicularly, one the second vertical portion of busbar with the second riser direct weld, another the second vertical portion of busbar with the fourth riser direct weld.
Further, the first flat part is in an L-shaped flat plate shape, the second flat part is in an L-shaped flat plate shape, the first flat part comprises a first transverse plate and a second transverse plate, the first transverse plate and the second transverse plate are connected, the first transverse plate is parallel to the bottom surface of the junction box body, and the second transverse plate is parallel to the bottom surface of the junction box body; the second flat part comprises a third transverse plate and a fourth transverse plate, the third transverse plate is connected with the third transverse plate, the third transverse plate is parallel to the bottom surface of the junction box body, and the fourth transverse plate is parallel to the bottom surface of the junction box body; the cables are directly welded to the third transverse plate, one of the bus bars is directly welded to the second transverse plate, and the other of the bus bars is directly welded to the fourth transverse plate.
Further, the second transverse plate extends to the rear of the first transverse plate, and the fourth transverse plate extends to the rear of the third transverse plate; or, the second transverse plate extends to the rear of the first transverse plate, and the fourth transverse plate extends to the front of the third transverse plate.
Further, the bus bars include a third upper horizontal portion, a third vertical portion and a third lower horizontal portion, the third upper horizontal portion is vertically connected with the third vertical portion, the third lower horizontal portion is vertically connected with the third vertical portion, the third upper horizontal portion and the third lower horizontal portion are located on the same side of the third vertical portion, the third upper horizontal portion of one bus bar is directly welded to the second transverse plate, and the third upper horizontal portion of the other bus bar is directly welded to the fourth transverse plate.
Further, the left end to the right end of the junction box body are taken as a length direction Y, the first flat portion and the second flat portion are both rectangular flat plates, the length direction of the first flat portion is perpendicular to the length direction Y, the cable is directly welded to the front end surface of the second flat portion, one bus bar is directly welded to the rear end surface of the first flat portion, and the other bus bar is directly welded to the rear end surface of the second flat portion.
Further, the bus bar includes a fourth upper horizontal portion, a fourth vertical portion, and a fourth lower horizontal portion, the fourth upper horizontal portion is vertically connected to the fourth vertical portion, the fourth lower horizontal portion is vertically connected to the fourth vertical portion, the fourth upper horizontal portion and the fourth lower horizontal portion are located on the same side of the fourth vertical portion, the fourth upper horizontal portion of one bus bar is directly welded to the rear end surface of the first flat portion, and the fourth upper horizontal portion of the other bus bar is directly welded to the rear end surface of the second flat portion.
Further, the left end to the right end of the junction box body are taken as a length direction Y, the first flat portion and the second flat portion are both rectangular flat plates, the length direction of the first flat portion is parallel to the length direction Y, the cable is directly welded to the left end surface of the second flat portion, one bus bar is directly welded to the left end surface of the first flat portion, and the other bus bar is directly welded to the right end surface of the second flat portion.
Further, the bus bars include a fifth upper horizontal portion, a fifth vertical portion, and a fifth lower horizontal portion, the fifth upper horizontal portion is vertically connected to the fifth vertical portion, the fifth lower horizontal portion is vertically connected to the fifth vertical portion, the fifth upper horizontal portion and the fifth lower horizontal portion are located on opposite sides of the fifth vertical portion, the fifth upper horizontal portion of one of the bus bars is directly welded to a left end surface of the first flat portion, and the fifth upper horizontal portion of the other of the bus bars is directly welded to a right end surface of the second flat portion.
The photovoltaic junction box mounting structure has the beneficial effects that the first flat part and the second flat part are designed into flat plates or bent flat plates, so that the first flat part and the second flat part have larger welding surfaces and can be directly welded with cables and bus bars, a conducting strip is not required to be arranged as an intermediate connecting piece, the mounting process is simplified, welding spots in the photovoltaic junction box are reduced, the safety and the reliability of the photovoltaic junction box are improved, and the cost can be reduced. Meanwhile, the diode is directly welded with the cable and the bus bar, so that the heat dissipation of the diode can be accelerated, the electrical efficiency of the diode is improved, and the use requirement of large current can be met.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a bus bar according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural view of a bus bar according to embodiment 2 of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 3 of the present invention.
Fig. 6 is a schematic structural view of a bus bar according to embodiment 3 of the present invention.
Fig. 7 is a schematic structural diagram of embodiment 4 of the present invention.
Fig. 8 is a schematic structural view of a bus bar according to embodiment 4 of the present invention.
Fig. 9 is a schematic structural view of embodiment 5 of the present invention.
Fig. 10 is a schematic structural view of a bus bar of embodiment 5 of the present invention.
Fig. 11 is a schematic structural view of embodiment 6 of the present invention.
Fig. 12 is a schematic structural view of embodiment 7 of the present invention.
Fig. 13 is a schematic structural view of a bus bar of embodiment 7 of the present invention.
Fig. 14 is a schematic structural view of embodiment 8 of the present invention.
Fig. 15 is a schematic structural view of a bus bar of embodiment 8 of the present invention.
In the figure:
1. the terminal box comprises a terminal box body 11, an accommodating cavity 12, a first opening 13 and a second opening;
2. the diode comprises an axial diode, 21, a diode body, 22, a first pin, 23, a second pin, 221, a first flat part, 231, a second flat part, 2211, a first transverse surface, 2212, a first vertical surface, 2311, a second transverse surface, 2312, a second vertical surface, 2213, a first vertical plate, 2214, a second vertical plate, 2313, a third vertical plate, 2314, a fourth vertical plate, 2215, a first transverse plate, 2216, a second transverse plate, 2315, a third transverse plate, 2316 and a fourth transverse plate;
3. a cable;
4. a busbar, 41, a first vertical portion, 42, a first horizontal portion, 41-1, a second vertical portion, 42-1, a second horizontal portion, 43, a third upper horizontal portion, 44, a third vertical portion, 45, a third lower horizontal portion, 46, a fourth upper horizontal portion, 47, a fourth horizontal portion, 48, a fourth lower horizontal portion, 46-1, a fifth upper horizontal portion, 47-1, a fifth vertical portion, 48-1, a fifth lower horizontal 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 1
As shown in fig. 1 to 2, a photovoltaic junction box mounting structure includes: the junction box comprises a junction box body 1, wherein the junction box body 1 is provided with an accommodating cavity 11, and an axial diode 2 is arranged in the accommodating cavity 11; the axial diode 2 comprises a diode body 21, a first pin 22 and a second pin 23, the direction of the diode body 21 close to the inner wall of the junction box body 1 is taken as a front X, one end of the diode body 21 is fixedly connected with the first pin 22, the other end of the diode body 21 is fixedly connected with the second pin 23, the first pin 22 is provided with a first flat part 221, and the second pin 23 is provided with a second flat part 231; the first flat portion 221 is flat or bent; the second flat portion 231 has a flat plate shape or a bent flat plate shape; one end of the cable 3 penetrates through the junction box body 1 and enters the accommodating cavity 11, and the cable 3 is directly welded with the second flat part 231; two bus bars 4, one bus bar 4 is directly welded to the first flat portion 221, and the other bus bar 4 is directly welded to the second flat portion 231.
The bottom surface of the junction box body 1 is provided with a first opening 12 and a second opening 13, one end of one bus bar 4 passes through the first opening 12 to be directly welded with the first flat part 221, and one end of the other bus bar 4 passes through the second opening 13 to be directly welded with the second flat part 231.
The first flat part 221 is a bent flat plate shape, and the second flat part 231 is a bent flat plate shape; the first flat part 221 includes a first horizontal surface 2211 and a first vertical surface 2212, the first horizontal surface 2211 is vertically connected to the first vertical surface 2212, the first horizontal surface 2211 is parallel to the bottom surface of the junction box body 1, and the first vertical surface 2212 is vertical to the bottom surface of the junction box body 1; the second flat portion 231 includes a second transverse surface 2311 and a second vertical surface 2312, the second transverse surface 2311 and the second vertical surface 2312 are perpendicularly connected, the second transverse surface 2311 is parallel to the bottom surface of the junction box body 1, and the second vertical surface 2312 is perpendicular to the bottom surface of the junction box body 1; the cable 3 is directly welded to the second transverse face 2311, one bus bar 4 is directly welded to the first vertical face 2212, and the other bus bar 4 is directly welded to the second vertical face 2312.
The first vertical surface 2212 extends rearward of the first transverse surface 2211, and the second vertical surface 2312 extends rearward of the second transverse surface 2311. The bus bars 4 include a first vertical portion 41 and a first horizontal portion 42, the first vertical portion 41 is perpendicularly connected to the first horizontal portion 42, the first vertical portion 41 of one bus bar 4 is directly welded to the first vertical surface 2212, and the first vertical portion 41 of the other bus bar 4 is directly welded to the second vertical surface 2312.
Example 2
As shown in fig. 3 to 4, the difference from embodiment 1 is that the first vertical surface 2212 extends rearward of the first horizontal surface 2211, and the second vertical surface 2212 extends forward of the second horizontal surface 2311. This can be used in special situations, for example, when two bus bars 4 need to be used in a misaligned position.
Example 3
As shown in fig. 5 to 6, the difference from embodiment 1 is that the first vertical surface 2212 extends above the first horizontal surface 2211, and the second vertical surface 2212 extends above the second horizontal surface 2311. Therefore, the overall size of the photovoltaic junction box can be reduced, and the photovoltaic junction box is suitable for a compact installation environment.
Example 4
As shown in fig. 7 to 8, the difference from embodiment 1 is that the first flat part 221 is a bent flat plate shape, the second flat part 231 is a bent flat plate shape, the first flat part 221 includes a first vertical plate 2213 and a second vertical plate 2214, the first vertical plate 2213 and the second vertical plate 2214 are vertically connected, the first vertical plate 2213 is vertical to the bottom surface of the terminal box body 1, and the second vertical plate 2214 is vertical to the bottom surface of the terminal box body 1; the second flat portion 231 includes a third riser 2313 and a fourth riser 2314, the third riser 2313 and the fourth riser 2314 are vertically connected, and the third riser 2313 is perpendicular to the bottom surface of the junction box body 1 and the fourth riser 2314 is perpendicular to the bottom surface of the junction box body 1. The cable 3 and the third riser 2313 direct weld, and a busbar 4 and the second riser 2214 direct weld, another busbar 4 and fourth riser 2314 direct weld. The second riser 2214 extends rearward of the first riser 2213, and the fourth riser 2314 extends rearward of the third riser 2313. The bus bars 4 include a second vertical portion 41-1 and a second horizontal portion 42-1, the second vertical portion 41-1 is perpendicularly connected to the second horizontal portion 42-1, the second vertical portion 41-1 of one bus bar 4 is directly welded to the second vertical plate 2214, and the second vertical portion 41-1 of the other bus bar 4 is directly welded to the fourth vertical plate 2314. Therefore, the height of the photovoltaic junction box can be reduced, and the processing technology of the axial diode 2 is simpler.
Example 5
As shown in fig. 9 to 10, the difference from embodiment 1 is that the first flat part 221 is in an L-shaped flat plate shape, the second flat part 231 is in an L-shaped flat plate shape, the first flat part 221 includes a first horizontal plate 2215 and a second horizontal plate 2216, the first horizontal plate 2215 is connected with the second horizontal plate 2216, the first horizontal plate 2215 is parallel to the bottom surface of the terminal box body 1, and the second horizontal plate 2216 is parallel to the bottom surface of the terminal box body 1; the second flat portion 231 includes a third transverse plate 2315 and a fourth transverse plate 2316, the third transverse plate 2315 and the third transverse plate 2316 are connected, the third transverse plate 2315 is parallel to the bottom surface of the junction box body 1, and the fourth transverse plate 2316 is parallel to the bottom surface of the junction box body 1. The cable 3 is directly welded to the third cross plate 2315, one bus bar 4 is directly welded to the second cross plate 2216, and the other bus bar 4 is directly welded to the fourth cross plate 2316.
The second cross plate 2216 extends rearward of the first cross plate 2215 and the fourth cross plate 2316 extends rearward of the third cross plate 2315. The bus bars 4 include a third upper horizontal portion 43, a third vertical portion 44, and a third lower horizontal portion 45, the third upper horizontal portion 43 is vertically connected to the third vertical portion 44, the third lower horizontal portion 45 is vertically connected to the third vertical portion 44, the third upper horizontal portion 43 and the third lower horizontal portion 45 are located at the same side of the third vertical portion 44, the third upper horizontal portion 43 of one bus bar 4 is directly welded to the second horizontal plate 2216, and the third upper horizontal portion 43 of the other bus bar 4 is directly welded to the fourth horizontal plate 2316. This applies to the soldering process.
Example 6
As shown in fig. 11, the difference between the embodiments 1 and 5 is that the second transverse plate 2216 extends rearward of the first transverse plate 2215, and the fourth transverse plate 2316 extends forward of the third transverse plate 2315.
Example 7
As shown in fig. 12 to 13, the difference from embodiment 1 is that, taking the left end to the right end of the junction box body 1 as the length direction Y, the first flat part 221 and the second flat part 231 are both rectangular flat plate-shaped, the length direction of the first flat part 221 is perpendicular to the length direction Y, the cable 3 is directly welded to the front end surface of the second flat part 231, one bus bar 4 is directly welded to the rear end surface of the first flat part 221, and the other bus bar 4 is directly welded to the rear end surface of the second flat part 231.
The bus bars 4 include a fourth upper horizontal portion 46, a fourth vertical portion 47, and a fourth lower horizontal portion 48, the fourth upper horizontal portion 46 is vertically connected to the fourth vertical portion 47, the fourth lower horizontal portion 48 is vertically connected to the fourth vertical portion 47, the fourth upper horizontal portion 46 and the fourth lower horizontal portion 48 are located on the same side of the fourth vertical portion 47, the fourth upper horizontal portion 46 of one bus bar 4 is directly welded to the rear end surface of the first flat portion 221, and the fourth upper horizontal portion 46 of the other bus bar 4 is directly welded to the rear end surface of the second flat portion 231. Therefore, the length of the photovoltaic junction box can be reduced, and the volume of the photovoltaic junction box is reduced.
Example 8
As shown in fig. 14 to 15, the difference from embodiment 1 is that, taking the left end to the right end of the junction box body 1 as the length direction Y, the first flat portion 221 and the second flat portion 231 are both rectangular flat plate-shaped, the length direction of the first flat portion 221 is parallel to the length direction Y, the cable 3 is directly welded to the left end surface of the second flat portion 231, one bus bar 4 is directly welded to the left end surface of the first flat portion 221, and the other bus bar 4 is directly welded to the right end surface of the second flat portion 231.
The bus bars 4 include fifth upper horizontal portions 46-1, fifth vertical portions 47-1, and fifth lower horizontal portions 48-1, the fifth upper horizontal portions 46-1 are vertically connected to the fifth vertical portions 47-1, the fifth lower horizontal portions 48-1 are vertically connected to the fifth vertical portions 47-1, the fifth upper horizontal portions 46-1 and the fifth lower horizontal portions 48-1 are located at opposite sides of the fifth vertical portions 47-1, the fifth upper horizontal portion 46-1 of one bus bar 4 is directly welded to the left end surface of the first flat portion 221, and the fifth upper horizontal portion 46-1 of the other bus bar 4 is directly welded to the right end surface of the second flat portion 231. Therefore, the axial diode 2 is simpler to process, the volume of the photovoltaic wiring junction box can be reduced, and the photovoltaic wiring junction box is suitable for soldering.
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 (14)

1. A photovoltaic junction box mounting structure, comprising:
the junction box comprises a junction box body (1), wherein the junction box body (1) is provided with an accommodating cavity (11), and an axial diode (2) is arranged in the accommodating cavity (11); the axial diode (2) comprises a diode body (21), a first pin (22) and a second pin (23), the direction of the diode body (21) close to the inner wall of the junction box body (1) is taken as a front X, one end of the diode body (21) is fixedly connected with the first pin (22), the other end of the diode body (21) is fixedly connected with the second pin (23), the first pin (22) is provided with a first flat part (221), and the second pin (23) is provided with a second flat part (231); the first flat part (221) is a flat plate or a bent flat plate; the second flat part (231) is flat or bent flat;
a cable (3), wherein one end of the cable (3) penetrates through the junction box body (1) and enters the accommodating cavity (11), and the cable (3) is directly welded with the second flat part (231);
two bus bars (4), one of the bus bars (4) being directly welded to the first flat portion (221), the other of the bus bars (4) being directly welded to the second flat portion (231).
2. The photovoltaic junction box mounting structure according to claim 1, wherein a first opening (12) and a second opening (13) are formed in a bottom surface of the junction box body (1), one end of one of the bus bars (4) is directly welded to the first flat portion (221) through the first opening (12), and one end of the other bus bar (4) is directly welded to the second flat portion (231) through the second opening (13).
3. The photovoltaic junction box mounting structure according to claim 2, wherein the first flat portion (221) is a bent flat plate shape, and the second flat portion (231) is a bent flat plate shape; the first flat part (221) comprises a first transverse surface (2211) and a first vertical surface (2212), the first transverse surface (2211) and the first vertical surface (2212) are vertically connected, the first transverse surface (2211) is parallel to the bottom surface of the junction box body (1), and the first vertical surface (2212) is vertical to the bottom surface of the junction box body (1); the second flat part (231) includes a second transverse surface (2311) and a second vertical surface (2312), the second transverse surface (2311) and the second vertical surface (2312) are vertically connected, the second transverse surface (2311) is parallel to the bottom surface of the junction box body (1), and the second vertical surface (2312) is vertical to the bottom surface of the junction box body (1); the cable (3) is directly welded to the second transverse surface (2311), one of the bus bars (4) is directly welded to the first vertical surface (2212), and the other bus bar (4) is directly welded to the second vertical surface (2312).
4. The photovoltaic junction box mounting structure according to claim 3, wherein the first vertical surface (2212) extends rearward of the first transverse surface (2211), and the second vertical surface (2312) extends rearward of the second transverse surface (2311);
alternatively, the first vertical plane (2212) extends rearward of the first transverse plane (2211), and the second vertical plane (2312) extends forward of the second transverse plane (2311);
alternatively, the first vertical surface (2212) extends above the first horizontal surface (2211), and the second vertical surface (2312) extends above the second horizontal surface (2311).
5. The photovoltaic junction box mounting structure according to claim 4, wherein the bus bars (4) include a first vertical portion (41) and a first horizontal portion (42), the first vertical portion (41) being vertically connected to the first horizontal portion (42), the first vertical portion (41) of one of the bus bars (4) being directly welded to the first vertical face (2212), and the first vertical portion (41) of the other of the bus bars (4) being directly welded to the second vertical face (2312).
6. The photovoltaic junction box mounting structure according to claim 2, wherein the first flat portion (221) is a bent flat plate shape, the second flat portion (231) is a bent flat plate shape, the first flat portion (221) includes a first riser (2213) and a second riser (2214), the first riser (2213) and the second riser (2214) are vertically connected, and the first riser (2213) is perpendicular to a bottom surface of the junction box body (1), and the second riser (2214) is perpendicular to the bottom surface of the junction box body (1); the second flat portion (231) includes a third riser (2313) and a fourth riser (2314), the third riser (2313) and the fourth riser (2314) are vertically connected, the third riser (2313) is perpendicular to a bottom surface of the junction box body (1), and the fourth riser (2314) is perpendicular to the bottom surface of the junction box body (1); the cable (3) is directly welded to the third vertical plate (2313), one of the bus bars (4) is directly welded to the second vertical plate (2214), and the other bus bar (4) is directly welded to the fourth vertical plate (2314).
7. The photovoltaic junction box mounting structure of claim 6, wherein the second riser (2214) extends rearward of the first riser (2213), and the fourth riser (2314) extends rearward of the third riser (2313); the bus bars (4) comprise a second vertical part (41-1) and a second horizontal part (42-1), the second vertical part (41-1) is vertically connected with the second horizontal part (42-1), the second vertical part (41-1) of one bus bar (4) is directly welded with the second vertical plate (2214), and the second vertical part (41-1) of the other bus bar (4) is directly welded with the fourth vertical plate (2314).
8. The photovoltaic junction box mounting structure according to claim 2, wherein the first flat portion (221) is in an L-shaped flat plate shape, the second flat portion (231) is in an L-shaped flat plate shape, the first flat portion (221) includes a first transverse plate (2215) and a second transverse plate (2216), the first transverse plate (2215) and the second transverse plate (2216) are connected, and the first transverse plate (2215) is parallel to a bottom surface of the junction box body (1), and the second transverse plate (2216) is parallel to the bottom surface of the junction box body (1); the second flat part (231) comprises a third transverse plate (2315) and a fourth transverse plate (2316), the third transverse plate (2315) and the fourth transverse plate (2316) are connected, the third transverse plate (2315) is parallel to the bottom surface of the junction box body (1), and the fourth transverse plate (2316) is parallel to the bottom surface of the junction box body (1); the cable (3) is directly welded to the third transverse plate (2315), one of the bus bars (4) is directly welded to the second transverse plate (2216), and the other bus bar (4) is directly welded to the fourth transverse plate (2316).
9. The photovoltaic junction box mounting structure as claimed in claim 8, wherein the second transverse plate (2216) extends rearward of the first transverse plate (2215), and the fourth transverse plate (2316) extends rearward of the third transverse plate (2315);
alternatively, the second transverse plate (2216) extends rearward of the first transverse plate (2215), and the fourth transverse plate (2316) extends forward of the third transverse plate (2315).
10. The photovoltaic junction box mounting structure according to claim 9, wherein the bus bars (4) include a third upper horizontal portion (43), a third vertical portion (44), and a third lower horizontal portion (45), the third upper horizontal portion (43) is vertically connected to the third vertical portion (44), the third lower horizontal portion (45) is vertically connected to the third vertical portion (44), the third upper horizontal portion (43) and the third lower horizontal portion (45) are located at the same side of the third vertical portion (44), the third upper horizontal portion (43) of one of the bus bars (4) is directly welded to the second horizontal plate (2216), and the third upper horizontal portion (43) of the other bus bar (4) is directly welded to the fourth horizontal plate (2316).
11. The photovoltaic junction box mounting structure according to claim 2, wherein a length direction Y is defined as a left end to a right end of the junction box body (1), the first flat portion (221) and the second flat portion (231) are each in a rectangular flat plate shape, a length direction of the first flat portion (221) is perpendicular to the length direction Y, and the cable (3) is directly welded to a front end surface of the second flat portion (231), one of the bus bars (4) is directly welded to a rear end surface of the first flat portion (221), and the other bus bar (4) is directly welded to a rear end surface of the second flat portion (231).
12. The photovoltaic junction box mounting structure according to claim 11, wherein the bus bars (4) include a fourth upper horizontal portion (46), a fourth vertical portion (47), and a fourth lower horizontal portion (48), the fourth upper horizontal portion (46) being vertically connected to the fourth vertical portion (47), the fourth lower horizontal portion (48) being vertically connected to the fourth vertical portion (47), the fourth upper horizontal portion (46) and the fourth lower horizontal portion (48) being located on the same side of the fourth vertical portion (47), the fourth upper horizontal portion (46) of one of the bus bars (4) being directly welded to the rear end surface of the first flat portion (221), and the fourth upper horizontal portion (46) of the other of the bus bars (4) being directly welded to the rear end surface of the second flat portion (231).
13. The photovoltaic junction box mounting structure according to claim 2, wherein a length direction Y is defined as a left end to a right end of the junction box body (1), the first flat portion (221) and the second flat portion (231) are each in a rectangular flat plate shape, a length direction of the first flat portion (221) is parallel to the length direction Y, and the cable (3) is directly welded to a left end surface of the second flat portion (231), one of the bus bars (4) is directly welded to a left end surface of the first flat portion (221), and the other bus bar (4) is directly welded to a right end surface of the second flat portion (231).
14. The photovoltaic junction box mounting structure according to claim 13, wherein the bus bar (4) includes a fifth upper horizontal portion (46-1), a fifth vertical portion (47-1), and a fifth lower horizontal portion (48-1), the fifth upper horizontal portion (46-1) is vertically connected to the fifth vertical portion (47-1), the fifth lower horizontal portion (48-1) is vertically connected to the fifth vertical portion (47-1), the fifth upper horizontal portion (46-1) and the fifth lower horizontal portion (48-1) are located on opposite sides of the fifth vertical portion (47-1), the fifth upper horizontal portion (46-1) of one bus bar (4) is directly welded to a left end surface of the first flat portion (221), the fifth upper horizontal portion (46-1) of the other bus bar (4) is directly welded to a right end surface of the second flat portion (231) .
CN202121791443.9U 2021-08-02 2021-08-02 Photovoltaic junction box mounting structure Active CN215581057U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115642874A (en) * 2022-09-09 2023-01-24 安徽钜芯半导体科技有限公司 Packaging structure for improving thermal conductivity of photovoltaic module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115642874A (en) * 2022-09-09 2023-01-24 安徽钜芯半导体科技有限公司 Packaging structure for improving thermal conductivity of photovoltaic module

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Address after: No.16, Yaxi Road, Zhixi Town, Jintan District, Changzhou City, Jiangsu Province 213200

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