CN220935136U - High-efficient heat dissipation photovoltaic terminal box - Google Patents
High-efficient heat dissipation photovoltaic terminal box Download PDFInfo
- Publication number
- CN220935136U CN220935136U CN202322644112.8U CN202322644112U CN220935136U CN 220935136 U CN220935136 U CN 220935136U CN 202322644112 U CN202322644112 U CN 202322644112U CN 220935136 U CN220935136 U CN 220935136U
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- China
- Prior art keywords
- box
- extension plate
- junction box
- sealing cover
- half box
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 230000005855 radiation Effects 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The application discloses a high-efficiency heat-dissipation photovoltaic junction box, which belongs to the technical field of junction box structures and is used for providing a photovoltaic junction box with higher heat-dissipation efficiency and better working stability. The utility model discloses a set up the heat radiation plate structure of alloy system at two half box lateral surfaces of terminal box, can be used to the area greatly increased of heat diffusion with the terminal box surface through faster heat conduction mode to effectively improved the radiating efficiency of terminal box, even the circuit structure inside the terminal box is great through the electric current, the terminal box also can maintain suitable operating temperature.
Description
Technical Field
The application relates to the technical field of junction box structures, in particular to a high-efficiency heat dissipation photovoltaic junction box.
Background
The junction box is one of the common components in the circuit system and is used for connecting branch lines with a bus, for example, in photovoltaic equipment, a plurality of solar panels are required to be concentrated onto one power supply line through cables, the junction ends of the cables are required to be concentrated and protected by the junction box, but in order to ensure insulativity and waterproofness, the existing junction box generally adopts insulating materials as a shell, and the heat conduction performance of most insulating materials is poor, so when a large current passes through the internal circuit of the junction box, the junction box can be quickly heated up due to the heat dissipation effect of the current, and the junction box has great damage risk.
Disclosure of Invention
The application aims to provide a photovoltaic junction box with higher heat dissipation efficiency and better working stability.
In order to achieve the above purpose, the application provides a high-efficiency heat dissipation photovoltaic junction box: including first half box and the second half box of mutually supporting, the side that first half box and second half box are relative is formed with the distribution chamber, first half box and second half box all are provided with the heating panel in the side that is on the back of the body, first half box and second half box are provided with the lead cabin in the position that is close to the left and right sides, the bottom in lead cabin is provided with the plug terminal for connect the external connection cable.
Preferably, the first half box comprises a first sealing cover with one end being an open end, the first sealing cover forms a first wiring cavity inwards from the open end, the second half box comprises a second sealing cover with one end being an open end, and the second sealing cover forms a second wiring cavity inwards from the open end and is used for accommodating a circuit structure inside the junction box.
Preferably, the first cover has a first extension plate on an open end surface, the first extension plate has a fitting strip on an end surface far from the first cover, the second cover has a second extension plate on an open end surface, and the second extension plate has a fitting groove on an end surface far from the second cover, and the second extension plate is suitable for being fitted with the fitting strip to serve as a waterproof barrier of the wiring cavity.
Preferably, the side surface of the first extension plate is located outside the side surface of the first cover, the side surface of the second extension plate is located outside the side surface of the second cover, and the end surface area of the extension plate is significantly larger than that of the cover.
Preferably, the engaging strip surrounds the first wiring cavity, the engaging groove surrounds the second wiring cavity, the engaging strip and the engaging groove are rectangular, and the engaging strip is made of a silica gel material and has both sealability and high temperature resistance.
Preferably, the lead cabin is located between the first extension plate and the longitudinal side surface of the first cover, the lead cabin is located between the second extension plate and the longitudinal side surface of the second cover, and wires connected to the wiring board inside the wiring cavity are arranged inside the lead cabin.
Preferably, the heat dissipating plate includes longitudinal ribs, longitudinal air flow is allowed to pass between the ribs, foot plates are arranged at the upper end and the lower end of the ribs, and the foot plates are provided with opposite flow grooves penetrating through the left side surface and the right side surface, so that transverse air flow is allowed to pass.
Preferably, the side surface of the foot plate facing the first extension plate or the second extension plate is provided with a clamping plate, and the side surface of the clamping plate facing away from the first extension plate or the second extension plate is provided with a finger buckling groove, so that a worker can conveniently separate two half boxes buckled together.
Compared with the prior art, the application has the beneficial effects that:
(1) By arranging the alloy heat radiation plate structures on the outer side surfaces of the two half boxes of the junction box, the area of the outer surface of the junction box, which can be used for heat diffusion, is greatly increased in a faster heat conduction mode, so that the heat radiation efficiency of the junction box is effectively improved, and even if the current passing through the circuit structure inside the junction box is larger, the junction box can maintain proper working temperature;
(2) The waterproof structure surrounding the wiring cavity is arranged between the two half boxes of the junction box, so that the internal circuit structure can be effectively protected, and the high working stability can be maintained even if the junction box is rained.
Drawings
FIG. 1 is a first perspective view of the overall construction of the high efficiency heat dissipating photovoltaic junction box;
fig. 2 is a second perspective view of the overall structure of the high-efficiency heat dissipation photovoltaic junction box;
FIG. 3 is a perspective cross-sectional view of a first half of the high efficiency heat dissipating photovoltaic junction box;
FIG. 4 is a perspective cross-sectional view of a second half of the high efficiency heat dissipating photovoltaic junction box;
fig. 5 is a schematic perspective view of a first half of the high-efficiency heat dissipation photovoltaic junction box;
fig. 6 is a schematic perspective view of a heat dissipating plate of the high-efficiency heat dissipating photovoltaic junction box.
In the figure: 1. a first half box; 101. a first extension plate; 102. a fitting bar; 103. a first cover; 104. a first wiring cavity; 2. a second half box; 201. a second extension plate; 202. a fitting groove; 203. a second cover; 204. a second wiring cavity; 3. a lead cabin; 4. a wire inserting end; 5. a heat dissipation plate; 501. a rib; 502. foot plates; 503. a clamping plate; 504. a finger-fastening groove; 505. and (5) a flow-aligning groove.
Detailed Description
The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The efficient heat dissipation photovoltaic junction box as shown in fig. 1-6 comprises a first half box 1 and a second half box 2 which are mutually matched, wherein the structures and the sizes of the two half boxes are almost consistent, corrosion-resistant alloy is generally adopted to manufacture the two half boxes, an insulating layer is further arranged on the inner wall of a containing circuit structure to stop electric leakage, and insulating materials can be directly adopted, of course, because the heat dissipation efficiency of the half boxes can be quickened due to the additionally designed structure outside the half boxes, wiring cavities are formed on the opposite side surfaces of the first half box 1 and the second half box 2, wiring boards are placed inside the first half box 1, the first half box 1 comprises a cuboid-shaped first sealing cover 103 with one end being an open end, the first sealing cover 103 is inwards provided with a first wiring cavity 104 by the open end, the second half box 2 comprises a cuboid-shaped second sealing cover 203 with one end being an open end, the second sealing cover 203 is inwards provided with the open end to form a second wiring cavity 204, and the first wiring cavity 104 is jointly provided with a complete wiring cavity structure inside the junction box.
The open end face of the first cover 103 is provided with the first extension plate 101, the end face area of the first extension plate 101 is obviously larger than that of the first cover 103, the end face of the first extension plate 101 far away from the first cover 103 is provided with the engaging strip 102, the engaging strip 102 is made of a silica gel material, the engaging strip 102 surrounds the first wiring cavity 104, the second cover 203 is provided with the second extension plate 201 at the open end face, the end face area of the second extension plate 201 is also larger than that of the second cover 203, the end face area of the second extension plate 201 far away from the second cover 203 is the same as that of the first extension plate 101, the end face of the engaging strip 202 far away from the second cover 203 is provided with the engaging groove 202, the engaging strip 102 and the engaging groove 202 are rectangular, and therefore the engaging groove 202 can be engaged with the engaging strip 102, the elastic engaging strip 102 is tightly adhered to the inner wall of the engaging groove 202, moisture can be well prevented from entering the wiring cavity of the junction box, and waterproof sealing performance is good.
In fact, all sides of the first extension board 101 are located outside the sides of the first cover 103, all sides of the second extension board 201 are also located outside the sides of the second cover 203, the opposite sides of the first half box 1 and the second half box 2 are provided with heat dissipation boards 5, the heat dissipation boards 5 can be made of the same or different materials as the half boxes, but are made of alloy materials with high heat conduction efficiency, the specific structure of the heat dissipation boards 5 comprises longitudinal ribs 501, the ribs 501 are fixedly connected to the end faces of the cover, air flow in the up-down direction is allowed to pass through the ribs 501, foot boards 502 are fixedly connected between the horizontal sides of the cover and the end faces of the extension board, convection grooves 505 penetrating through the left side and the right side are formed in the foot boards 502, air cooling efficiency is improved, the side faces of the foot boards 502 opposite to the first extension board 101 or the second extension board 201 are provided with clamping boards 503, the clamping boards 503 are fixedly connected to the horizontal sides of the extension boards, the side faces of the first extension board 101 or the second extension board 201 are provided with finger-locking grooves 504, and fingers are conveniently embedded into the finger-locking boxes.
The first half box 1 and the second half box 2 are provided with lead cabins 3 at positions close to the left side and the right side, the lead cabins 3 and the half box are of an integrated structure, the lead cabins 3 are hollow, the lead cabins 3 are located between the longitudinal sides of the first extension board 101 and the first sealing cover 103 and are close to the height of the sealing cover relative to the extension board, the lead cabins 3 are located between the longitudinal sides of the second extension board 201 and the second sealing cover 203, and plug wire ends 4 are arranged at the bottoms of the lead cabins 3 and are used for being connected with external cable ends.
Working principle: when the solar photovoltaic junction box is used, a circuit board of a connecting line is placed in a wiring cavity, then two half boxes are closed, the fit strip 102 can be automatically embedded into the fit groove 202 to serve as a waterproof barrier of the wiring cavity, the whole junction box is fixed on a photovoltaic support through a connecting piece, namely, the junction box can be connected with a cable line of the photovoltaic panel through the plug terminal 4, and due to the fact that the connecting end is located below the junction box, even if the junction box is rained in rainy days, good working stability can be kept, and an alloy shell structure is added with a large-area heat dissipation plate 5, so that the temperature of the junction box can be kept in a proper range through relatively large current in the junction box with relatively high heat dissipation efficiency, and the safety of the internal circuit structure of the junction box is ensured.
The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (8)
1. A high-efficient heat dissipation photovoltaic terminal box, its characterized in that: including first half box (1) and second half box (2) that mutually support, the side that first half box (1) and second half box (2) are relative is formed with the distribution chamber, first half box (1) and second half box (2) all are provided with heating panel (5) in the side of being on the back of the body, first half box (1) and second half box (2) are provided with lead compartment (3) in the position that is close to the left and right sides, the bottom of lead compartment (3) is provided with line insertion end (4).
2. The high efficiency heat dissipating photovoltaic junction box of claim 1, wherein: the first half box (1) comprises a first sealing cover (103) with one end being an open end, the first sealing cover (103) inwards forms a first wiring cavity (104) from the open end, the second half box (2) comprises a second sealing cover (203) with one end being the open end, and the second sealing cover (203) inwards forms a second wiring cavity (204) with the open end.
3. The high efficiency heat dissipating photovoltaic junction box of claim 2, wherein: the open end face of the first sealing cover (103) is provided with a first extension plate (101), the end face, far away from the first sealing cover (103), of the first extension plate (101) is provided with an engagement strip (102), the second sealing cover (203) is provided with a second extension plate (201) on the open end face, and the end face, far away from the second sealing cover (203), of the second extension plate (201) is provided with an engagement groove (202) which is suitable for being engaged with the engagement strip (102).
4. The high efficiency heat dissipating photovoltaic junction box of claim 3, wherein: the side surface of the first extension plate (101) is located outside the side surface of the first sealing cover (103), and the side surface of the second extension plate (201) is located outside the side surface of the second sealing cover (203).
5. The high efficiency heat dissipating photovoltaic junction box of claim 4, wherein: the fit strip (102) surrounds the first wiring cavity (104), the fit groove (202) surrounds the second wiring cavity (204), the fit strip (102) and the fit groove (202) are rectangular, and the fit strip (102) is made of a silica gel material.
6. The high efficiency heat dissipating photovoltaic junction box of claim 5, wherein: the lead cabin (3) is located between the first extension plate (101) and the longitudinal side of the first cover (103), and the lead cabin (3) is located between the second extension plate (201) and the longitudinal side of the second cover (203).
7. The high efficiency heat dissipating photovoltaic junction box of any of claims 4 to 6, wherein: the heat dissipation plate (5) comprises longitudinal ribs (501), foot plates (502) are arranged at the upper end and the lower end of each rib (501), and the foot plates (502) are provided with opposite flow grooves (505) penetrating through the left side surface and the right side surface.
8. The high efficiency heat dissipating photovoltaic junction box of claim 7, wherein: the side surface of the foot plate (502) facing the first extension plate (101) or the second extension plate (201) is provided with a clamping plate (503), and the side surface of the clamping plate (503) facing away from the first extension plate (101) or the second extension plate (201) is provided with a finger buckling groove (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322644112.8U CN220935136U (en) | 2023-09-27 | 2023-09-27 | High-efficient heat dissipation photovoltaic terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322644112.8U CN220935136U (en) | 2023-09-27 | 2023-09-27 | High-efficient heat dissipation photovoltaic terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220935136U true CN220935136U (en) | 2024-05-10 |
Family
ID=90969208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322644112.8U Active CN220935136U (en) | 2023-09-27 | 2023-09-27 | High-efficient heat dissipation photovoltaic terminal box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220935136U (en) |
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2023
- 2023-09-27 CN CN202322644112.8U patent/CN220935136U/en active Active
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