Photovoltaic cable junction box
By setting an adjustable rainproof panel structure on the top of the cable tap box, the problem of rain and snow entering the cable tap box during rain and snow weather is solved, effectively protecting the box, avoiding short circuits in the cable interface and breaking box failures.
Patent Information
- Application Number
- CN202421199314.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In rainy and snowy weather, existing cable tap box is prone to lack of cover, causing rainy and snow to enter the box, resulting in short circuits in the cable interface and failure of the tap box.
A photovoltaic cable tap box is designed, adopting an adjustable rain panel structure, which controls the opening and closing of the rain panel through a screw drive slider. The rain panel opens on sunny days to expose the solar panels, and the rain panel closes in rainy weather to prevent rainwater from entering.
Effectively prevent rain and snow from entering the cable tap box, avoid short circuits in the cable interface and tap box failure, and ensure that the equipment operates normally in bad weather conditions.
Smart Images
Figure CN222721456U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable junction boxes, in particular to a photovoltaic cable junction box. Background Art
[0002] The cable branch box is only used for cable branching. The main function of the cable branch box is to branch or transfer the cables. It mainly plays the role of cable branching and cable transfer. With the development of the cableization process of the distribution network, when the independent load with small capacity is distributed more concentratedly, the cable branch box can be used for multi-branch cable connection.
[0003] Existing cable junction boxes are equipped with exhaust fans or heating plates inside the box to ensure the heat dissipation and drying functions of the junction box. At the same time, existing cable junction boxes are equipped with solar panels on the top of the box to convert solar energy into electrical energy to power the exhaust fans or heating plates. However, cable junction boxes are usually set in outdoor areas. When encountering rainy and snowy weather, since there is a solar panel on the top of the cable junction box and no other shelter, it is easy for a large amount of rain and snow to enter the box, causing a short circuit in the cable interface and causing a failure of the junction box. In order to solve this problem, we propose a photovoltaic cable junction box. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies in the prior art, the utility model provides a photovoltaic cable junction box, which has the advantage of enhancing the protection of the junction box and solves the problem that rain and snow may enter the interior of the junction box due to the lack of shielding on the top of the junction box.
[0006] (II) Technical solution
[0007] To achieve the above object, the utility model provides the following technical solution: a photovoltaic cable junction box, including a junction box assembly; the junction box assembly includes:
[0008] The bottom of the box is provided with supporting legs, the inside of the box is provided with a wiring port, and the bottom of the box is provided with a plurality of outlets;
[0009] The junction box assembly is provided with a dehumidification assembly, and the dehumidification assembly comprises:
[0010] A cover plate is arranged on the top of the box body, and a plurality of solar cells are arranged on the cover plate;
[0011] The fixing piles are arranged on both sides of the top of the cover plate;
[0012] A fixed block is arranged on the cover plate, screws are rotatably arranged on both sides of the fixed block, and the screws are rotatably connected to the fixed piles, a slider is threadedly connected to the screws, and a second slide groove is arranged on the cover plate and is slidably connected to the slider;
[0013] A rain shield is arranged on the top of the sliding block;
[0014] The motor is arranged on the inner wall of the box body, and the motor and the solar cell are connected in series through wires and batteries. Pulleys are arranged on the output end of the motor and the screw rod, and transmission belts are arranged on the two pulleys.
[0015] In some embodiments, a slide groove 1 is provided at the top of the fixing pile, and the slide groove 1 is slidably connected to the bottom of the rain shield.
[0016] In some embodiments, the rain shield is divided into two pieces that can fit together, and the cross-section of the rain shield is triangular.
[0017] In some embodiments, a plurality of heat dissipation holes are disposed through the cover plate.
[0018] In some embodiments, the transmission belt is a rubber transmission belt.
[0019] In some embodiments, a frame is provided through the box body, an exhaust fan is provided on the frame, and the exhaust fan and the motor are connected in parallel through the wires and the battery.
[0020] In some embodiments, a plurality of ventilation openings are provided on the frame.
[0021] In some embodiments, a filter is provided on the vent.
[0022] (III) Beneficial effects
[0023] Compared with the prior art, the utility model provides a photovoltaic cable junction box, which has the following beneficial effects:
[0024] 1. The photovoltaic cable junction box is provided with two spliced rain shields on the top of the junction box, and a screw is used to drive a slider to control the rain shields to move in opposite directions, so that when the solar panels are needed, the rain shields are controlled to open to expose the solar panels to convert solar energy into electrical energy and store it through batteries. In rainy weather, the motor controls the rain shields to close to protect the box body, prevent water from entering the box body, and protect the junction box.
[0025] 2. The photovoltaic cable junction box is provided with a frame on the junction box, an exhaust fan is provided on the frame, and the exhaust fan and the battery are connected through wires to provide power for the exhaust fan, and a vent with a filter is provided on the frame to assist the junction box in heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the structure of the utility model;
[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0028] Figure 3 It is a schematic diagram of the top view structure of the cover plate in the utility model;
[0029] Figure 4 It is a side structural schematic diagram of the frame in the utility model.
[0030] In the figure:
[0031] 1. Junction box assembly; 11. Box body; 12. Support legs; 13. Wiring port; 14. Outlet port;
[0032] 2. Dehumidification component; 21. Cover plate; 211. Solar cell; 212. Heat dissipation hole; 22. Fixed pile; 221. Slideway 1; 23. Fixed block; 231. Screw; 232. Slider; 233. Slideway 2; 24. Rain shield; 25. Motor; 251. Wire; 252. Pulley; 253. Drive belt; 26. Frame; 261. Exhaust fan; 262. Vent; 263. Filter. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0034] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0035] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0036] When using the cable junction box, the user should first check whether the appearance of the junction box is damaged, then open the junction box door to check whether the internal cable interface is loose, connect the cables to the designated interfaces according to the internal interface diagram, use tools to fix the interfaces, and then use cable ties to organize the cables and pull them out from the outlet, then turn on the power of the junction box for testing, and finally close the box door to complete the cable branching work.
[0037] In the related art, an exhaust fan or a heating plate is installed inside the existing cable junction box to ensure the heat dissipation and drying functions of the junction box. At the same time, a solar panel is installed on the top of the box to convert solar energy into electrical energy to power the exhaust fan or the heating plate. However, the cable junction box is usually installed in an outdoor area. When encountering rainy and snowy weather, since there is a solar panel on the top of the cable junction box and there is no other shelter, it is easy for a large amount of rain and snow to enter the box, causing a short circuit in the cable interface and causing a failure of the junction box.
[0038] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a photovoltaic cable junction box. When it is needed, the junction box assembly 1 only needs to be transported to the designated location, and then the door of the box body 11 is opened, and the cables are connected to the wiring ports 13 according to the designated locations respectively. The cables are arranged with cable ties and pulled out from the outlet 14, and then the box body 11 is closed. During use, when it is rainy, the rain shield 24 on the top of the box body 11 can protect the box body 11 to prevent rainwater from entering the box body 11 through the gaps between the parts on the box body 11, resulting in water on the wiring port 13 and causing the cable to short-circuit. On sunny or cloudy days, the user can turn on the motor 25, and the output end of the motor 25 rotates. , driving the pulley 252 to rotate, the pulley 252 drives the pulley 252 fixedly connected to the screw 231 to rotate through the transmission belt 253, so that the screw 231 is driven to rotate, and the rotation of the screw 231 causes the slider 232 to move horizontally on the cover 21, driving the two rain shields 24 to move in opposite directions, exposing the solar cell 211 on the cover 21, the solar cell 211 can convert solar energy into electrical energy on sunny or cloudy days, and the solar cell 211 and the battery are connected in series through the wire 251, so the electrical energy can be stored in the battery, the motor 25 is connected to the battery through the wire 251, so the power supply of the motor 25 does not need to be external, and the components cooperate to achieve protection of the box 11 on rainy days.
[0039] The present application is described below with reference to the accompanying drawings and specific embodiments:
[0040] Combination Figure 1-Figure 4, the embodiment of the present application provides that in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic cable junction box, including a junction box assembly 1; the junction box assembly 1 includes: a support leg 12 is arranged at the bottom of the box body 11, a wiring port 13 is arranged inside the box body 11, and a plurality of outlet ports 14 are arranged at the bottom of the box body 11; a dehumidification assembly 2 is arranged on the junction box assembly 1, and the dehumidification assembly 2 includes: a cover plate 21 is arranged on the top of the box body 11, and a plurality of solar cells 211 are arranged on the cover plate 21; fixing piles 22 are arranged on both sides of the top of the cover plate 21; fixing blocks 23 are arranged on the cover On the plate 21, screws 231 are rotatably provided on both sides of the fixed block 23, and the screws 231 are rotatably connected to the fixed piles 22, a slider 232 is threadedly connected to the screw 231, and a slide groove 233 is provided on the cover plate 21 and is slidably connected to the slider 232; a rain shield 24 is provided on the top of the slider 232; a motor 25 is provided on the inner wall of the box body 11, and the motor 25 and the solar cell 211 are connected in series through an electric wire 251 and a battery, a pulley 252 is provided on the output end of the motor 25 and the screw 231, and a transmission belt 253 is provided on the two pulleys 252.
[0041] When it is needed, the junction box assembly 1 only needs to be transported to the designated location, the door of the box body 11 is opened, the cables are connected to the wiring ports 13 according to the designated locations, the cables are arranged with cable ties and pulled out from the outlet ports 14, and then the box body 11 is closed. During use, when it is rainy, the rain shield 24 on the top of the box body 11 can protect the box body 11 to prevent rainwater from entering the box body 11 through the gaps between the parts on the box body 11, resulting in water on the wiring ports 13 and causing the cables to short-circuit. When it is sunny or cloudy, the user can turn on the motor 25, the output end of the motor 25 rotates, driving the pulley 252 to rotate, and the pulley 252 rotates through the transmission The driving belt 253 drives the pulley 252 fixedly connected to the screw 231 to rotate, so that the screw 231 is driven to rotate. The rotation of the screw 231 causes the slider 232 to move horizontally on the cover 21, driving the two rain shields 24 to move in opposite directions, exposing the solar cell 211 on the cover 21. The solar cell 211 can convert solar energy into electrical energy on sunny or cloudy days, and the solar cell 211 and the battery are connected in series through the wire 251, so the electrical energy can be stored in the battery. The motor 25 is connected to the battery through the wire 251, so the power supply of the motor 25 does not need to be external, and the components cooperate to achieve protection of the box 11 on rainy days.
[0042] Specifically, the solar cell 211 is a photoelectric semiconductor sheet that uses sunlight to directly generate electricity, also known as a "solar chip" or "photovoltaic cell". As long as it is illuminated by light that meets certain illumination conditions, it can instantly output voltage and generate current in the presence of a circuit.
[0043] In some embodiments, a slide groove 221 is provided at the top of the fixing pile 22, and the slide groove 221 is slidably connected to the bottom of the rain shield 24. The fixing pile 22 can be slidably connected to the rain shield 24 through the slide groove 221, and the slider 232 improves the stability of the rain shield 24 during the sliding process.
[0044] In some embodiments, the rain shield 24 is divided into two pieces and can fit together, and the cross section of the rain shield 24 is triangular. The rain shield 24 is two pieces spliced together, which is convenient for the user to control the synchronous movement to both sides. At the same time, when it rains, rainwater can flow down along the top of the rain shield 24 under the action of gravity to avoid rainwater accumulation.
[0045] In some embodiments, the cover plate 21 is provided with a plurality of heat dissipation holes 212. The heat dissipation holes 212 can dissipate heat from the box body 11 and the solar cell 211 during operation, thereby preventing the internal circuit of the box body 11 from being damaged due to overheating.
[0046] In some embodiments, the transmission belt 253 is a rubber transmission belt. The rubber transmission belt has good deformation resistance, temperature resistance and anti-skid properties, a long service life, and is only suitable for use in low-power circuits, so it is suitable for use with the motor 25 in the present device.
[0047] In some embodiments, a frame 26 is provided through the box 11, and an exhaust fan 261 is provided on the frame 26. The exhaust fan 261 and the motor 25 are connected in parallel with the battery through the wire 251. The frame 26 with the exhaust fan 261 provided on the box 11 can accelerate the heat dissipation inside the box 11, and the exhaust fan 261 can provide power through the battery, so when the heat dissipation needs to be accelerated, the user can directly turn on the exhaust fan 261 to accelerate the air circulation inside the box 11 for heat dissipation.
[0048] In some embodiments, the frame 26 is provided with a plurality of vents 262. The vents 262 are provided so that the exhaust fan 261 can maintain the heat dissipation state of the box body 11 when not in use.
[0049] In some embodiments, a filter 263 is disposed on the vent 262. The filter 263 can prevent dust from entering the box 11 and damaging the electronic components inside the box 11.
[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0051] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A photovoltaic cable junction box, comprising a junction box assembly (1); the junction box assembly (1) comprises: A box body (11) is provided with supporting legs (12) at the bottom thereof, a wiring port (13) is provided inside the box body (11), and a plurality of wire outlets (14) are provided at the bottom of the box body (11); The invention is characterized in that: the junction box assembly (1) is provided with a dehumidification assembly (2), and the dehumidification assembly (2) comprises: A cover plate (21) is arranged on the top of the box body (11), and a plurality of solar cells (211) are arranged on the cover plate (21); Fixed piles (22) are arranged on both sides of the top of the cover plate (21); A fixed block (23) is arranged on the cover plate (21), screw rods (231) are rotatably arranged on both sides of the fixed block (23), and the screw rods (231) and the fixed pile (22) are rotatably connected, a slider (232) is threadedly connected on the screw rod (231), and a second slide groove (233) is arranged on the cover plate (21) and is slidably connected to the slider (232); A rain shield (24) is disposed on the top of the slider (232); A motor (25) is arranged on the inner wall of the box body (11), and the motor (25) and the solar cell (211) are connected in series via an electric wire (251) and a storage battery. A pulley (252) is arranged on the output end of the motor (25) and the screw rod (231), and a transmission belt (253) is arranged on the two pulleys (252).
2. A photovoltaic cable junction box according to claim 1, characterized in that: A slide groove (221) is provided at the top of the fixing pile (22), and the slide groove (221) is slidably connected to the bottom of the rain shield (24).
3. A photovoltaic cable junction box according to claim 2, characterized in that: The rain shield (24) is divided into two parts which can be fitted together, and the cross section of the rain shield (24) is triangular.
4. A photovoltaic cable junction box according to claim 1, characterized in that: The cover plate (21) is provided with a plurality of heat dissipation holes (212) extending therethrough.
5. The photovoltaic cable junction box according to claim 1, characterized in that: The transmission belt (253) is a rubber transmission belt.
6. A photovoltaic cable junction box according to claim 1, characterized in that: A frame (26) is provided through the box body (11), an exhaust fan (261) is provided on the frame (26), and the exhaust fan (261) and the motor (25) are connected in parallel with the battery via the electric wire (251).
7. A photovoltaic cable junction box according to claim 6, characterized in that: The frame (26) is provided with a plurality of ventilation holes (262).
8. A photovoltaic cable junction box according to claim 7, characterized in that: A filter screen (263) is provided on the ventilation opening (262).