CN220234626U - Integral bypass protection module and photovoltaic junction box with same - Google Patents
Integral bypass protection module and photovoltaic junction box with same Download PDFInfo
- Publication number
- CN220234626U CN220234626U CN202321849167.6U CN202321849167U CN220234626U CN 220234626 U CN220234626 U CN 220234626U CN 202321849167 U CN202321849167 U CN 202321849167U CN 220234626 U CN220234626 U CN 220234626U
- Authority
- CN
- China
- Prior art keywords
- bypass protection
- conductive terminal
- flat plate
- protection module
- bypass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005538 encapsulation Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 7
- 230000001012 protector Effects 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 4
- 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
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides an integral bypass protection module, which comprises a first conductive terminal and a second conductive terminal; the first conductive terminal comprises a first flat plate part and a second flat plate part, the height of the second flat plate part is higher than that of the first flat plate part, and the second flat plate part is provided with a concave convex part; a bypass protection device is arranged on the second conductive terminal at a position corresponding to the concave convex part; the insulating encapsulation block encapsulates the bypass protection device and at least a portion of the first and second conductive terminals. The utility model also provides a junction box with the integral bypass protection module. The bypass protection module can realize a single-chip or multi-core packaging structure of the bypass protection device on an integral flat plate part, has simple and reliable process, remarkably improves the heat dissipation capacity and the heat dissipation uniformity of the bypass protection device and the whole bypass protection module, and prolongs the service life of the junction box; the utility model is particularly suitable for large-current photovoltaic modules.
Description
Technical Field
The utility model belongs to the technical field of solar photovoltaic, and particularly relates to a bypass protection module of an assembly junction box with an integral structure and a junction box for a photovoltaic assembly with the bypass protection module.
Background
The solar photovoltaic module is a device for converting solar energy into electric energy, and in the working process of the photovoltaic module, the electric energy generated by each solar panel is relatively small, and a plurality of solar panels are required to be mutually and electrically connected together by a photovoltaic junction box so as to collect and output currents generated by the plurality of solar panels together to form a photovoltaic system with certain power generation capacity; in addition, the junction box is provided with a bypass protection module, so that the solar photovoltaic module is protected when the module generates a hot spot effect.
In actual use, photovoltaic junction boxes are typically mounted directly on the respective solar panel (also known as a photovoltaic module) and electrically connected to the bus bars of the solar panel, with bypass protection devices in the junction box. The bypass protection module installed in the existing photovoltaic junction box described with reference to fig. 1 comprises positive and negative conductive terminals (1, 2) arranged in the box body, and a bypass protection device such as a bypass diode or a bypass integrated chip is connected between the positive and negative conductive terminals. The existing photovoltaic modules are developed towards high-efficiency high-power modules, such as a shingle module, a double-glass module, a double-sided module and the like, so that new requirements are brought to the junction box, for example, the overcurrent capacity of the junction box is relatively high, and the junction box needs to be suitable for high-current output; in addition, it is desirable to minimize the volume of the assembly for cost, appearance, and the like. Under some conditions, the current required to pass through the junction box is large, a plurality of bypass diodes are required to be arranged between the positive conductive terminal and the negative conductive terminal in order to play a sufficient bypass protection role, and the heat generated inside the junction box is larger, so that the volume of the junction box is reduced as much as possible, the junction box is ensured to have strong heat dissipation capacity, the heat dissipation in the box is ensured to be uniform as much as possible, and local overheating is avoided.
As shown in fig. 1, in the conventional bypass protection module, a patch diode 4 is generally fixed on one conductive terminal, such as a first conductive terminal 1 in the figure, and then is electrically connected to another conductive terminal, such as a second conductive terminal 2 in the figure, by welding a jumper 201 (typically a copper sheet with a narrower width), one end of the jumper 201 is connected to the diode 4, the other end is connected to the second conductive terminal 2, and then an encapsulation block 3 is formed by an insulating material. When a plurality of diodes are required to be arranged, the welding is required for a plurality of times, and the process is complex; in addition, as the diode is arranged on the conductive terminal on one side, the conductive terminal on one side heats more, so that the internal heating of the junction box is uneven, and the service life of the junction box is influenced.
Disclosure of Invention
Aiming at the technical problems, the utility model provides an integral bypass protection module and a photovoltaic junction box with the bypass protection module, wherein the bypass protection module is simple in processing technology, uniform in heat dissipation and excellent in heat dissipation performance.
The specific technical scheme provided by the utility model is as follows:
an integral bypass protection module comprises a first conductive terminal and a second conductive terminal; the first conductive terminal comprises a first flat plate part and a second flat plate part connected with the first flat plate part, the second flat plate part is higher than the first flat plate part, and the second flat plate part is provided with a concave convex part; a bypass protection device is arranged on the second conductive terminal at a position corresponding to the concave convex part, and the convex surface of the concave convex part is electrically connected with the bypass protection device; the insulating encapsulation block encapsulates the bypass protection device and at least a portion of the first and second conductive terminals.
Preferably, the first plate part and the second plate part are connected through a step structure, a transitional inclined plane structure or a transitional arc-shaped disconnection structure.
Still preferably, the first flat plate portion of the first conductive terminal and the second conductive terminal of the packaged bypass protection module are on the same horizontal plane.
Still preferably, the second flat plate portion of the first conductive terminal has a thickness smaller than that of the first flat plate portion.
Still preferably, a first flat plate part of the first conductive terminal is provided with a junction zone and a narrow hole for passing through the component junction zone; the narrow aperture is disposed adjacent to a transition between the first plate portion and the second plate portion.
Still preferably, the first plate portion and the second plate portion have the same width.
Still preferably, the bypass protection device is a chip diode or an integrated circuit module with bypass protection function.
Still preferably, a concave-convex portion is provided on the second flat plate portion of the first conductive terminal; correspondingly, a bypass protecting device is fixed on the second conductive terminal, and at this time, the concave-convex part and the bypass protecting device are arranged at the middle position in the width direction of the conductive terminal.
Still preferably, the second flat plate portion is provided with two concave convex portions, the second conductive terminal is provided with two bypass protection devices, the two bypass protection devices are equal in distance from the side edges of the adjacent second conductive terminals, and the two concave convex portions are equal in distance from the side edges of the adjacent connecting pieces
Still preferably, a plurality of concave-convex parts are arranged on the second flat plate part of the first conductive terminal, the plurality of concave-convex parts are arranged at equal intervals, and correspondingly, a plurality of bypass protectors are arranged on the second conductive terminal at equal intervals.
According to another object of the utility model, the utility model proposes a photovoltaic junction box comprising a box cover, a box body and a bypass protection module as described above arranged in the box body.
The bypass protection module has the beneficial effects that through the arrangement of the conductive terminals with an integral structure, a part of the conductive terminals are used as a connecting bridge of the bypass protection device between the two conductive terminals, and the second flat plate part of one conductive terminal is provided with the concave convex part connected with the bypass protection device on the second conductive terminal through a stamping process, so that the single-chip multi-core packaging structure is realized, the process is simple and reliable, the heat dissipation capacity and the heat dissipation uniformity of the bypass protection device and the whole bypass protection module are obviously improved, and the service life of the junction box is prolonged; the utility model is particularly suitable for large-current photovoltaic modules.
Drawings
Fig. 1 is a schematic structural view of a bypass protection module of a photovoltaic module junction box of the prior art;
fig. 2 is an exploded view of a bypass protection module of a photovoltaic module junction box according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram illustrating a first conductive terminal of the bypass protection module of FIG. 2;
fig. 4 is an exploded view of a bypass protection module of a photovoltaic module junction box according to another embodiment of the present utility model.
Description of the embodiments
For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 2 and 3, an exploded view of a bypass protection module of a photovoltaic junction box according to an embodiment of the present utility model includes a first conductive terminal 10 and a second conductive terminal 20; the first conductive terminal 10 comprises a first flat plate part 11 and a second flat plate part 12 connected with the first flat plate part 11, wherein the second flat plate part 12 is higher than the first flat plate part 11, and the second flat plate part 12 is provided with a concave convex part 122; a bypass protection device 40 is fixed to the second conductive terminal 20 at a position corresponding to the concave-convex portion 122, and the convex-portion surface of the concave-convex portion 122 is electrically connected to the bypass protection device 40; the insulating package 30 encapsulates the bypass protection device 40 and at least a portion of the first conductive terminal 10 and the second conductive terminal 20.
In a preferred embodiment, the first plate portion 11 and the second plate portion 12 are connected by a step structure or a transition slope or a transition arc, so that the height of the second plate portion 12 is higher than that of the first plate portion 11; in this way, the first flat plate portion 11 and the second conductive terminal 20 of the first conductive terminal 10 of the bypass protection module after packaging can be made on the same horizontal plane.
In another preferred embodiment, the thickness of the second flat plate portion 12 of the first conductive terminal 10 is smaller than the thickness of the first flat plate portion 11.
In another preferred embodiment, the first flat plate portion 11 of the first conductive terminal 10 is provided with a bus bar welding area 13 and a narrow hole 14 for passing the assembly bus bar; the narrow hole 14 is arranged adjacent to the transition between the first plate portion 11 and the second plate portion 12.
In another preferred embodiment, the first plate portion 11 and the second plate portion 12 have the same width.
In another preferred embodiment, the bypass protection device 40 is a chip diode or an integrated circuit module with bypass protection function.
In the above embodiment, one concave-convex portion 122 is provided on the second flat plate portion 12 of the first conductive terminal; correspondingly, a bypass protection device 40 is fixed on the second conductive terminal 20, and at this time, the concave-convex portion 122 and the bypass protection device 40 may be disposed at an intermediate position in the width direction of the conductive terminal; when a larger current is required to be passed, as shown in fig. 4, two or more concave-convex portions 122 may be provided on the second flat plate portion 12, and correspondingly, two or more bypass protection devices 40 may be fixed on the second conductive terminal 20.
The bypass protection module for the junction box comprises a first flat plate part and a second flat plate part, wherein one conductive terminal is provided with a height difference, and a concave convex part is formed on the second flat plate part with a higher position through a stamping process; the bypass protection device is disposed on the second conductive terminal, and the convex surface of the concave-convex portion is electrically connected to the bypass protection device, for example, by soldering. The first flat plate portion 11 and the second flat plate portion 12 form a height difference therebetween, so that the bypass protection device is prevented from being damaged by the second flat plate portion due to pressure applied to the bypass protection device. According to the utility model, an extra jumper wire is not needed to electrically connect the bypass protection device with the first conductive terminal and the second conductive terminal, and compared with the jumper wire connection mode with narrower width in the prior art, the bypass protection device has the advantages that the heat dissipation area of the copper plate is enlarged, and the heat dissipation efficiency is improved; in addition, the heat generated by the bypass protection device can be distributed to the first conductive terminal and the second conductive terminal as evenly as possible, and the heat dissipation uniformity can be improved.
In addition, for the bypass protection module needing to adopt two or more bypass protection devices, only a plurality of concave convex parts are required to be formed on the second flat plate part of the first conductive terminal, so that the connection assembly with the two or more bypass protection devices on the second conductive terminal can be conveniently completed through one-time welding process, and the process is simple and reliable. In a preferred embodiment, when the plurality of concave-convex portions are formed on the second flat plate portion, the plurality of concave-convex portions are arranged at equal intervals, and correspondingly, the plurality of bypass protection devices on the second conductive terminal are also arranged at equal intervals. When the second flat plate part is provided with two concave convex parts and the second conductive terminal is provided with two bypass protection devices, the distances from the two bypass protection devices to the side edges of the adjacent second conductive terminals are equal, and the distances from the two concave convex parts to the side edges of the adjacent connecting sheets are equal; thus, the uniformity of heat dissipation is ensured.
According to another object of the utility model, the utility model proposes a photovoltaic junction box comprising a box cover, a box body and a bypass protection module as described above arranged in the box body.
According to the bypass protection module, through the arrangement of the conductive terminals with the integral structure, one part of the conductive terminals is used as a connecting bridge of the bypass protection device between the two conductive terminals, the first flat plate part of one conductive terminal and the other conductive terminal are arranged at the same horizontal position, the second flat plate part is provided with a plurality of concave convex parts which are correspondingly connected with the bypass protection devices on the second conductive terminal through a stamping process, a single-chip multi-core packaging structure is realized, the process is simple and reliable, the heat dissipation capacity and the heat dissipation uniformity of the bypass protection devices and the whole bypass protection module are remarkably improved, and the service life of the junction box is prolonged; the utility model is particularly suitable for large-current photovoltaic modules.
The utility model has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the utility model. It should be noted that the disclosed embodiments do not limit the scope of the utility model. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (11)
1. The integrated bypass protection module is characterized by comprising a first conductive terminal and a second conductive terminal; the first conductive terminal comprises a first flat plate part and a second flat plate part connected with the first flat plate part, the second flat plate part is higher than the first flat plate part, and the second flat plate part is provided with a concave convex part; a bypass protection device is arranged on the second conductive terminal at a position corresponding to the concave convex part, and the convex surface of the concave convex part is electrically connected with the bypass protection device; the insulating encapsulation block encapsulates the bypass protection device and at least a portion of the first and second conductive terminals.
2. The integrated bypass protection module of claim 1, wherein the first plate portion and the second plate portion are connected by a step structure or a transition bevel structure or a transition arc relief structure.
3. An integrated bypass protection module as claimed in claim 1 or 2 wherein the first flat portion of the first conductive terminal and the second conductive terminal of the packaged bypass protection module are on the same horizontal plane.
4. An integral bypass protection module as claimed in claim 1 or claim 2 wherein the second planar portion of the first conductive terminal has a thickness less than the thickness of the first planar portion.
5. An integral bypass protection module as claimed in claim 1 or claim 2 wherein the first flat plate portion of the first conductive terminal is provided with a strap land and a narrow aperture for the assembly strap to pass through; the narrow aperture is disposed adjacent to a transition between the first plate portion and the second plate portion.
6. An integral bypass protection module as claimed in claim 1 or claim 2 wherein the first and second planar portions are the same width.
7. An integrated bypass protection module as claimed in claim 1 or 2, characterized in that the bypass protection device is a chip diode or an integrated circuit module with bypass protection.
8. An integral bypass protection module as claimed in claim 1 or 2 wherein a concave-convex portion is provided on the second flat plate portion of the first conductive terminal; correspondingly, a bypass protecting device is fixed on the second conductive terminal, and at this time, the concave-convex part and the bypass protecting device are arranged at the middle position in the width direction of the conductive terminal.
9. An integrated bypass protection module as claimed in claim 1 or 2 wherein two recessed protrusions are provided on the second plate portion and two bypass protection devices are provided on the second conductive terminal, said two bypass protection devices being equidistant from the sides of the respective adjacent second conductive terminal and the two recessed protrusions being equidistant from the sides of the respective adjacent tab.
10. An integrated bypass protection module as claimed in claim 1 or 2, wherein a plurality of concave-convex parts are arranged on the second flat plate part of the first conductive terminal, the plurality of concave-convex parts are arranged at equal intervals, and a plurality of bypass protectors are correspondingly arranged on the second conductive terminal at equal intervals.
11. A photovoltaic junction box comprising a box cover, a box body, and the integrated bypass protection module of any one of claims 1-10 disposed in the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321849167.6U CN220234626U (en) | 2023-07-14 | 2023-07-14 | Integral bypass protection module and photovoltaic junction box with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321849167.6U CN220234626U (en) | 2023-07-14 | 2023-07-14 | Integral bypass protection module and photovoltaic junction box with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220234626U true CN220234626U (en) | 2023-12-22 |
Family
ID=89183110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321849167.6U Active CN220234626U (en) | 2023-07-14 | 2023-07-14 | Integral bypass protection module and photovoltaic junction box with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220234626U (en) |
-
2023
- 2023-07-14 CN CN202321849167.6U patent/CN220234626U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216288418U (en) | Improved shaft type diode, bypass module using same and photovoltaic module junction box | |
| CN213125974U (en) | Photovoltaic junction box and photovoltaic module | |
| CN112994611A (en) | Low-cost large-current split type photovoltaic module junction box | |
| CN111969947A (en) | Photovoltaic module bypass element assembly with excellent heat dissipation performance and junction box | |
| CN220234626U (en) | Integral bypass protection module and photovoltaic junction box with same | |
| CN216671617U (en) | Diode module for junction box free of copper plate welding and junction box using diode module | |
| CN220553440U (en) | Bypass protection module with single-chip multi-core packaging structure and junction box for photovoltaic module | |
| CN216902964U (en) | Reinforced photovoltaic bypass diode module | |
| CN214412668U (en) | Improved split type photovoltaic assembly junction box | |
| CN111769798A (en) | Improved modularized photovoltaic assembly bypass element and assembly junction box | |
| CN112259517A (en) | Photovoltaic module bypass element soldering lug, bypass protection element module and junction box | |
| CN212783439U (en) | High current-carrying modularized photovoltaic assembly bypass element and junction box | |
| CN212305259U (en) | Improved modularized photovoltaic assembly bypass element and assembly junction box | |
| CN211791434U (en) | Large-current photovoltaic junction box structure | |
| CN213426103U (en) | High current-carrying modularized photovoltaic assembly bypass element and photovoltaic assembly junction box | |
| CN112563355A (en) | Solar module with ultra-thin die of photovoltaic protection diode | |
| CN213071116U (en) | Improved modular photovoltaic module bypass element and module junction box | |
| CN217508702U (en) | Bipartite formula photovoltaic module terminal box and use its photovoltaic module | |
| CN213212157U (en) | Photovoltaic module bypass element soldering lug, bypass protection element module and junction box | |
| CN213072572U (en) | Photovoltaic module bypass element assembly with excellent heat dissipation performance and junction box | |
| CN214591313U (en) | Low-cost split type photovoltaic module junction box adopting axial diodes | |
| CN205986763U (en) | Lug and use its photovoltaic assembly junction box | |
| CN214900790U (en) | Split type terminal box of solar photovoltaic module | |
| CN216928548U (en) | Copper-clad ceramic plate for IGBT module | |
| CN215934812U (en) | Bypass module for high-current junction box with good heat dissipation performance and junction box with bypass module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |