CN212278193U - Improved modular photovoltaic module bypass element and module junction box - Google Patents
Improved modular photovoltaic module bypass element and module junction box Download PDFInfo
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- CN212278193U CN212278193U CN202021530626.0U CN202021530626U CN212278193U CN 212278193 U CN212278193 U CN 212278193U CN 202021530626 U CN202021530626 U CN 202021530626U CN 212278193 U CN212278193 U CN 212278193U
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 7
- 238000012536 packaging technology Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides an improved modularized photovoltaic component bypass element, which comprises a first conductive terminal with a U-shaped structure, an insulation packaging module and a second conductive terminal with a T-shaped structure; the convergence belt slot hole and the convergence belt welding area are arranged on the first conductive terminal and the second conductive terminal; at least one bypass protection element is arranged on the outer side plane part of the bus bar welding area on the second conductive terminal and is electrically connected with the first conductive terminal through a jumper wire; the insulation packaging module is arranged between the first conductive terminal and the second conductive terminal and packages the bypass protection element and the conductive terminals together. The utility model discloses a modified modularization photovoltaic module bypass component sets up bypass protection component insulation packaging module in one side of modularization photovoltaic module bypass component, can be convenient for set up two bypass protection components even a plurality ofly on conductive terminal, and conductive terminal's planar segment's area adopts and is close impartial or equal area design, can optimize current-carrying capacity and heat-sinking capability.
Description
Technical Field
The utility model relates to a solar photovoltaic power generation technical field especially relates to a modified modularization photovoltaic module bypass component and have bypass component's photovoltaic module terminal box.
Background
The solar photovoltaic module is a device for converting solar energy into electric energy, and in the production process of the photovoltaic module, the junction box plays an important role in effectively outputting the photovoltaic electric energy and mainly plays a role in outputting current generated by the photovoltaic module and protecting the solar photovoltaic module. The current generated by each solar panel is relatively small, and a photovoltaic junction box is needed to electrically connect a plurality of solar panels together, so that the currents generated by the plurality of solar panels are converged together and output to form a photovoltaic system reaching a certain power generation capacity.
In practical use, the photovoltaic junction box is generally directly mounted on a corresponding solar panel (also called a photovoltaic module) and electrically connected with a bus bar of the solar panel, and a bypass protection device is arranged in the junction box. The photovoltaic junction box on the market at present sets up positive, negative conductive terminal in the box body, is connected with bypass diode or bypass integrated chip between positive, negative conductive terminal. Because the types and sizes of the photovoltaic modules are different, the specifications of the existing photovoltaic module junction box are also many, and shells, conductive terminals and the like with different specifications need to be produced, so that the production cost of the junction box is increased, the production efficiency is reduced, and cost reduction and efficiency improvement are not facilitated. In addition, the current photovoltaic module is developed towards a high-efficiency high-power module, such as a laminated tile module, a double-glass module, a double-sided module and the like, so that new requirements are brought to a junction box of key accessories of the photovoltaic module, for example, the overcurrent capacity of the junction box is stronger, and the junction box is suitable for large-current output; the size of the assembly needs to be reduced as much as possible, and the shielding influence on the surface of the assembly is reduced; because the passing current is large, the heating of the junction box is also large, and therefore the volume of the junction box is reduced as much as possible, and the junction box is ensured to have strong heat dissipation capacity; moreover, the production process of the junction box is simplified and efficient as much as possible, the reliability of the product is guaranteed, and the cost is saved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the modified modularization photovoltaic module bypass component that proposes for in the photovoltaic module terminal box, save manufacturing cost, make things convenient for spare part management, improve production efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the improved modularized photovoltaic component bypass element comprises a first conductive terminal, an insulating packaging module and a second conductive terminal, wherein one end of the first conductive terminal, which is matched with the second conductive terminal, is approximately in a T-shaped structure, a protruding part of the T-shaped structure is inserted into a hollow part in the middle of a U-shaped structure of the first conductive terminal, and the first conductive terminal and the second conductive terminal are separated by a set distance; the first conductive terminal is provided with a first converging belt welding area and a first converging belt slot hole, the adjacent edge of the end part of the protruding part of the T-shaped structure of the second conductive terminal is provided with a second converging belt slot hole, and the adjacent second converging belt slot hole is provided with a second converging belt welding area; at least one bypass protection element is arranged on the outer side plane part of the second bus bar welding area on the second conductive terminal, and the bypass protection element is electrically connected with the U-shaped arm of the U-shaped structure of the first conductive terminal through a jumper wire; the insulation packaging module is arranged between the first conductive terminal and the second conductive terminal, the bypass protection element and the conductive terminals are packaged together, and the insulation packaging module is positioned on the same side of the first converging slotted hole and the second converging slotted hole.
Preferably, the number of the bypass protection elements is 2.
Still preferably, the bypass protection element is provided in an amount of 3 or more.
Still preferably, the area ratio of the first conductive terminal to the second terminal flat surface portion is 0.5 to 2.
Still preferably, the area ratio of the first conductive terminal to the second terminal flat surface portion is 0.8 to 1.25.
Still preferably, the first conductive terminal and the second terminal have the same area.
Still preferably, the bypass protection element is a diode chip or an integrated circuit module.
Preferably, the end part of the first conductive terminal and/or the second conductive terminal is/are provided with a cable riveting part; the cable riveting part is U-shaped, and two sides of the U-shaped are provided with grooves.
According to another object of the present invention, there is also provided a photovoltaic module junction box, comprising a box body, a box cover, and an improved modular photovoltaic module bypass element disposed in the box body as described above.
Preferably, the junction box is a single-body junction box or a split junction box used in combination.
The utility model has the advantages that the improved modularized photovoltaic component bypass element adopts the integrated packaging technology of the conductive terminal and the diode, avoids secondary switching, adopts the design of a double-diode chip, and enhances the current carrying capacity and the heat dissipation capacity of the bypass element; the bypass protection element insulating packaging module is arranged on one side of the bypass element of the modularized photovoltaic assembly, so that double bypass protection elements or even a plurality of bypass protection elements can be conveniently arranged on the conductive terminals, the area of the plane part of the conductive terminals is designed to be nearly equal or equal, and the current carrying capacity and the heat dissipation capacity can be optimized.
Drawings
Fig. 1 is a schematic plan view of an improved modular photovoltaic module bypass element according to an embodiment of the present invention;
fig. 2 is a schematic view of a copper frame construction of the modular photovoltaic module bypass element of fig. 1;
fig. 3 is a schematic plan view of an improved modular photovoltaic module bypass element according to another embodiment of the present invention;
fig. 4 is a schematic view of the copper frame structure of the modular photovoltaic module bypass element of fig. 3.
In the figure, 10-a first conductive terminal, 11-a first bus bar slot hole, 12-a first bus bar land, 20-an insulation package module, 22-a diode chip, 30-a second conductive terminal, 31-a second bus bar slot hole, 32-a second bus bar land, 302-a jumper wire, and 40-a cable wire riveting part.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Please refer to fig. 1, which is a schematic view of a plane structure of an improved modularized photovoltaic module bypass component of the present invention, the modularized photovoltaic module bypass component includes a first conductive terminal 10, an insulating package module 20 and a second conductive terminal 30, one end of the first conductive terminal 10, which is matched with the second conductive terminal 30, is substantially U-shaped, the second conductive terminal 30 is substantially T-shaped, a protrusion 33 of the T-shaped is inserted into a hollow space in the middle of the U-shaped of the first conductive terminal 10, and the two are separated by a set distance; the first conductive terminal 10 is provided with a first bus bar land 12 and a first bus bar slot 11, the end adjacent edge of the T-shaped protruding part 33 of the second conductive terminal 30 is provided with a second bus bar slot 31, and the second bus bar land 32 is arranged adjacent to the second bus bar slot 31; at least one bypass protection element 22 is arranged on the outer side plane part of the second busbar welding area 32 on the second conductive terminal 30, and the bypass protection element 22 is electrically connected with the U-shaped arm 13 of the U-shaped structure of the first conductive terminal 10 through a jumper wire 302; the insulation packaging module 20 is disposed between the first conductive terminal 10 and the second conductive terminal 30, and packages the bypass protection element 22 and the conductive terminals together, as shown in the figure, since the bypass protection element 22 is located at the same side of the first bus bar slot hole and the second bus bar slot hole, the insulation packaging module packaging the bypass protection element 22 is also located at the same side of the first bus bar slot hole 11 and the second bus bar slot hole 31.
In addition, it should be understood that the present invention refers to the conductive terminal on the right side in the modular photovoltaic module bypass element of fig. 1 as the first conductive terminal, and the conductive terminal on the left side as the second conductive terminal, only for the purpose of clearly describing the embodiments of the present invention, and does not limit the position where the bypass protection element is disposed; in practical implementation, the user may also set the first conductive terminal in the above embodiment to a T-shaped configuration and set the second conductive terminal to a U-shaped configuration, so as to set the bypass protection element on the first conductive terminal, which should be regarded as an equivalent implementation of the above embodiment.
In this embodiment, the bypass protection element insulating encapsulation module 20 is disposed at one side of the bypass element of the modular photovoltaic module, rather than at the middle part thereof, so as to facilitate the connection and welding process of the bus bars of the module; moreover, the area of the plane part using the conductive terminal can be maximized, and a plurality of bypass protection elements 22 are arranged, so that the high-power photovoltaic module bypass protection device can adapt to the large-current passing capacity of the high-power photovoltaic module, the heat dissipation capacity of the modularized photovoltaic module bypass elements is improved, and the service life of the modularized photovoltaic module bypass protection device is prolonged.
In a preferred embodiment, as shown in fig. 1, there may be 2 bypass protection elements; alternatively, and preferably, as shown in fig. 3, in order to meet the use requirement of the photovoltaic module with higher power, the protrusion 33 with the T-shaped structure can be extended, and more bypass protection elements 22 can be arranged.
In another preferred embodiment, considering both the heat dissipation effect and the current carrying capacity of the bypass element of the modular photovoltaic module, as shown in fig. 2 and 4, the area ratio of the first conductive terminal to the second terminal plane portions a and B is 0.5-2; preferably, the area ratio of the first conductive terminal to the second terminal plane portions a and B is 0.8 to 1.25; preferably, the first conductive terminal and the second terminal plane portions a and B have the same area. The area of the first conductive terminal and the second terminal flat surface portion referred to herein is the area of the first conductive terminal and the second terminal after the cable wire caulking portion 40 is removed.
In addition, it should be understood that the bypass protection element 22 of the present invention may adopt a diode chip as a protection device of the modular bypass element, and may also adopt an integrated circuit module having a bypass protection function as a protection device, which is not particularly limited by the present invention.
The utility model adopts the integrated packaging technology of the conductive terminal and the diode, avoids secondary switching, enhances the conductivity of the diode, simplifies the process and reduces the volume of the modular photovoltaic bypass element; the bypass protection element insulating packaging module is arranged on one side of the bypass element of the modularized photovoltaic assembly, so that double bypass protection elements or even a plurality of bypass protection elements can be conveniently arranged on the conductive terminal, the current-carrying capacity of the bypass element can be increased, the heat dissipation performance is improved, and the application requirement of the high-power photovoltaic assembly is met.
In another preferred embodiment, referring to fig. 1 to 4, cable riveting portions 40 are provided at the ends of the first conductive terminal 10 and the second conductive terminal 30, so as to facilitate riveting the modular photovoltaic bypass element with the cable when the photovoltaic junction box is installed. The cable riveting portion 40 extends from the end of the conductive terminal and is formed into an integral structure with the conductive terminal through stamping. The utility model discloses an in the preferred embodiment, cable conductor riveting portion 40 is the U type, and its U type both sides are equipped with fluting 41, and it can realize the segmentation riveting, improves the intensity and the reliability of riveting the connection. In practical application, in order to satisfy different application requirements, the cable riveting portion can be arranged at the end of any one of the first conductive terminal and the second conductive terminal, and also can be arranged at the end of the first conductive terminal and the second conductive terminal, and the utility model discloses do not limit this.
According to another object of the present invention, there is also provided a photovoltaic module junction box, comprising a box body, a box cover, and an improved modular photovoltaic module bypass element disposed in the box body as described above. The junction box can be a single-body junction box used alone or a split junction box used in combination. When being applied to by left box body, well box body, when the split type terminal box of the combination use that right box body constitutes, at left box body, well box body, can install the modularization photovoltaic bypass component of isostructure in the right box body, the cable conductor riveting of the modularization photovoltaic module bypass component in the left box body is connected with the cable conductor of left box body connection, the cable conductor riveting of the modularization photovoltaic module bypass component in the right box body is connected with the cable conductor of right box body connection, the cable conductor riveting of the modularization photovoltaic module bypass component inside well box body does not connect the cable conductor, thereby can adopt a structure to be applied to in different box bodies, satisfy the installation demand, avoid adding man-hour at the terminal box and producing the binding post of multiple structure, save the input of extra stamping die, and make things convenient for the management of spare part in the production process, save cost, and improve.
To sum up, the utility model provides an improved modularized photovoltaic component bypass element, which adopts the integrated packaging technology of conductive terminals and diodes to avoid secondary switching, and adopts the design of double diode chips to enhance the current carrying capacity and the heat dissipation capacity of the bypass element; the bypass protection element insulation packaging module is arranged on one side of the bypass element of the modularized photovoltaic assembly, so that double bypass protection elements or even a plurality of bypass protection elements can be conveniently arranged on the conductive terminal, and the area of the plane part of the conductive terminal is designed to be nearly equal or equal, so that the current carrying capacity and the heat dissipation capacity can be optimized; the end part of the conductive terminal is provided with the cable riveting part, and a module can be applied to different boxes of the split type junction box, so that the production of wiring terminals with various structures during the junction box processing can be avoided, the investment of an additional stamping die is saved, the management of parts in the production process is facilitated, the cost is saved, and the efficiency is improved.
The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.
Claims (10)
1. The improved modularized photovoltaic assembly bypass element is characterized by comprising a first conductive terminal, an insulation packaging module and a second conductive terminal, wherein one end, matched with the first conductive terminal and the second conductive terminal, of the first conductive terminal is approximately in a shape structure, the second conductive terminal is approximately in a T-shaped structure, a protruding part of the T-shaped structure is inserted into a hollow part in the middle of a U-shaped structure of the first conductive terminal, and the protruding part and the U-shaped structure are separated by a set distance; the first conductive terminal is provided with a first converging belt welding area and a first converging belt slot hole, the adjacent edge of the end part of the protruding part of the T-shaped structure of the second conductive terminal is provided with a second converging belt slot hole, and the adjacent second converging belt slot hole is provided with a second converging belt welding area; at least one bypass protection element is arranged on the outer side plane part of the second bus bar welding area on the second conductive terminal, and the bypass protection element is electrically connected with the U-shaped arm of the U-shaped structure of the first conductive terminal through a jumper wire; the insulation packaging module is arranged between the first conductive terminal and the second conductive terminal, the bypass protection element and the conductive terminals are packaged together, and the insulation packaging module is positioned on the same side of the first converging slotted hole and the second converging slotted hole.
2. The improved modular photovoltaic module bypass element according to claim 1, wherein there are 2 bypass protection elements.
3. The improved modular photovoltaic module bypass element according to claim 1, wherein there are more than 3 bypass protection elements.
4. The improved modular photovoltaic module bypass element according to claim 1, wherein the area ratio of said first conductive terminal to said second terminal planar portion is between 0.5 and 2.
5. The improved modular photovoltaic module bypass element according to claim 4, wherein the area ratio of said first conductive terminal to said second terminal planar portion is from 0.8 to 1.25.
6. The improved modular photovoltaic module bypass element according to claim 5, wherein said first conductive terminal and said second terminal planar portion are of equal area.
7. The improved modular photovoltaic module bypass element as claimed in claim 1, wherein said bypass protection element is a diode chip or an integrated circuit module.
8. The improved modular photovoltaic module bypass element according to claim 1, wherein a cable riveting portion is provided at an end of the first conductive terminal and/or the second conductive terminal; the cable riveting part is U-shaped, and two sides of the U-shaped are provided with grooves.
9. A pv junction box comprising a box body, a box cover, and an improved modular pv bypass element according to any of claims 1-8 disposed in the box body.
10. The photovoltaic module junction box of claim 9 wherein said junction box is a single piece junction box or a split piece junction box used in combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021530626.0U CN212278193U (en) | 2020-07-29 | 2020-07-29 | Improved modular photovoltaic module bypass element and module junction box |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021530626.0U CN212278193U (en) | 2020-07-29 | 2020-07-29 | Improved modular photovoltaic module bypass element and module junction box |
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| CN212278193U true CN212278193U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726074A (en) * | 2020-07-29 | 2020-09-29 | 苏州快可光伏电子股份有限公司 | Improved Modular PV Module Bypass Element and Module Junction Box |
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2020
- 2020-07-29 CN CN202021530626.0U patent/CN212278193U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111726074A (en) * | 2020-07-29 | 2020-09-29 | 苏州快可光伏电子股份有限公司 | Improved Modular PV Module Bypass Element and Module Junction Box |
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