Photovoltaic-based reverse connection prevention device
By designing anti-reverse devices with detachable heat dissipation and cooling dual devices, the safety hazards caused by the inability to replace the heat dissipation device in the prior art are solved, and more efficient heat dissipation effect and longer service life are achieved.
Patent Information
- Application Number
- CN202421179831.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing anti-reverse connection devices based on photovoltaic cannot be replaced in time during long-term use, resulting in the power devices being affected by heat and pose safety hazards.
An anti-reverse device including a detachable heat dissipation device and a dual device for cooling is designed. Through the fixed connection between the positioning box and the heat dissipation box, the heat dissipation efficiency is improved by using a telescopic spring and a cooling bag, and the heat dissipation device is allowed to be replaced in time during long-term use.
It achieves a more efficient heat dissipation effect, extends the service life of the device, reduces safety risks, and allows maintenance and replacement of the heat dissipation device during long-term use.
Smart Images
Figure CN222620990U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of photovoltaic power devices, in particular to an anti-reverse connection device based on photovoltaics. Background Art
[0002] Photovoltaic, or photovoltaic power generation system, is a power generation system that uses the photovoltaic effect of semiconductor materials to convert solar radiation energy into electrical energy. The energy of the photovoltaic power generation system comes from inexhaustible solar energy, which is a clean, safe and renewable energy source. The photovoltaic power generation process does not pollute the environment or damage the ecology. Photovoltaic power generation systems are divided into independent photovoltaic systems and grid-connected photovoltaic systems. Photovoltaic power generation systems are composed of solar cell arrays, battery packs, charge and discharge controllers, inverters, AC distribution cabinets, solar tracking control systems and other equipment.
[0003] Currently, most photovoltaic anti-reverse polarity devices on the market are simply coated with a heat dissipation layer on the outside of the device to dissipate heat from the power device. This method has low heat dissipation efficiency and the heat dissipation device cannot be replaced in time during long-term use. Over time, the power device is easily affected by heat, causing safety hazards. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the shortcomings of the prior art, the utility model provides an anti-reverse polarity device based on photovoltaics, which has the advantages of being equipped with a detachable heat dissipation device and a dual heat dissipation and cooling device, thereby solving the problem that the heat dissipation device cannot be replaced in time during long-term use, which may easily cause the power device to be affected by heat over time and cause safety hazards.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic-based anti-reverse connection device, comprising a device box, a device element is fixedly arranged in the device box, a plurality of element feet are fixedly connected to the right side of the device element, and the plurality of element feet all penetrate the side wall of the device box, a heat absorption net is arranged on the upper and lower sides of the device box, a positioning box is sleeved on the outer side of the device box, slots are arranged on the upper and lower sides of the positioning box, positioning slots are arranged on the two side walls of the two slots, positioning springs are fixedly connected to the bottom of the four positioning slots, and the other ends of the four positioning springs are fixedly connected to limiting blocks, heat dissipation boxes are arranged in the two slots, cooling ports are arranged on the tops of the two heat dissipation boxes, cooling bags are fixedly arranged in the two cooling ports, a plurality of telescopic springs are fixedly connected to the inner walls of the two heat dissipation boxes, and the other ends of the plurality of telescopic springs are fixedly connected to heat sinks, limiting slots are arranged on both sides of the two heat dissipation boxes, and the sizes of the four limiting slots are consistent with the sizes of the limiting blocks, and the positions correspond one to one.
[0008] Preferably, the device box and the positioning box are fixedly connected by two fixing bolts.
[0009] Preferably, both ends of the four positioning springs are fixedly connected to the positioning groove and the limiting block through a fixing plate.
[0010] Preferably, the tops and bottoms of the plurality of telescopic springs are fixedly connected to the inner wall of the heat dissipation box and the heat sink via a fixing plate.
[0011] Preferably, the sizes of the two heat sinks are consistent with the size of the heat absorbing net, and their positions correspond one to one.
[0012] Preferably, the device box and the outer sides of the positioning box are both provided with an antistatic layer.
[0013] Compared with the prior art, the utility model provides a photovoltaic anti-reverse connection device, which has the following beneficial effects:
[0014] 1. The photovoltaic-based anti-reverse connection device, through the positioning box and the heat dissipation box arranged on the outside of the device box, can fix the positioning box and the device box by tightening the fixing bolts, and then insert the heat dissipation box into the slot of the positioning box. As the heat dissipation box is positioned deeper, the limit block enters the limit groove under the action of the positioning spring, so that the heat dissipation box is fixedly connected with the positioning box and the device box. Therefore, under the action of the telescopic spring, the heat sink starts to dissipate heat, and the cooling bag in the cooling port cools the heat sink, further enhancing the heat dissipation efficiency. At the same time, the heat sink and the cooling bag can be disassembled in time under long-term working conditions to replace the heat sink and the cooling bag, thereby increasing the heat dissipation time, thereby increasing the life of the device and reducing safety hazards.
[0015] 2. The photovoltaic anti-reverse connection device can play the role of pressing the heat sink and the heat-absorbing net tightly together by setting multiple telescopic springs behind the heat sink, thereby increasing the effective heat dissipation area. At the same time, the telescopic springs also expand the space behind the heat sink to prevent the heat from being difficult to dissipate, thereby causing the overall overheating of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 The utility model structure Figure 1 A schematic diagram of the structure enlargement in the middle;
[0018] Figure 3 The utility model structure Figure 1 Enlarged schematic diagram of the structure at point B in the middle.
[0019] Among them: 1. device box; 2. positioning box; 3. fixing bolts; 4. device components; 5. cooling port; 6. cooling bag; 7. slot; 8. heat sink; 9. heat absorption net; 10. component foot; 11. heat sink; 12. positioning spring; 13. positioning slot; 14. limit slot; 15. limit block; 16. telescopic spring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-3The utility model provides the following technical solutions: a photovoltaic anti-reverse connection device, including a device box 1, a device element 4 is fixedly arranged in the device box 1, a plurality of element feet 10 are fixedly connected to the right side of the device element 4, and the plurality of element feet 10 all penetrate the side wall of the device box 1, and a heat absorption net 9 is arranged on the upper and lower sides of the device box 1, and a positioning box 2 is sleeved on the outer side of the device box 1, and the device box 1 and the positioning box 2 are fixedly connected by two fixing bolts 3, and slots 7 are provided on the upper and lower sides of the positioning box 2, and positioning slots 13 are provided on the two side walls of the two slots 7, and positioning springs 12 are fixedly connected to the bottom of the four positioning slots 13, and the other ends of the four positioning springs 12 The two slots 7 are both fixedly connected to the limiting block 15, and both ends of the four positioning springs 12 are fixedly connected to the positioning slot 13 and the limiting block 15 through a fixing plate. A heat sink 11 is provided in each of the two slots 7. A cooling port 5 is provided on the top of each of the two heat sinks 11. A cooling bag 6 is fixedly provided in each of the two cooling ports 5. A plurality of telescopic springs 16 are fixedly connected to the inner walls of the two heat sinks 11, and the other ends of the plurality of telescopic springs 16 are fixedly connected to a heat sink 8. The sizes of the two heat sinks 8 are consistent with those of the heat absorbing net 9, and the positions correspond one to one. The tops and bottoms of the plurality of telescopic springs 16 are fixedly connected to the inner walls of the heat sink 11 and the heat sink 8 through a fixing plate. By setting a plurality of telescopic springs 16 behind the heat sink 8, the heat sink 8 can be closely attached to the heat absorption net 9 to increase the effective heat dissipation area. At the same time, the telescopic springs 16 also expand the space behind the heat sink 8 to prevent the heat from being difficult to dissipate, thereby causing the overall overheating of the device. Limiting grooves 14 are provided on both sides of the two heat sinks 11. The sizes of the four limiting grooves 14 are consistent with the sizes of the limiting blocks 15, and the positions correspond one to one. By setting the positioning box 2 and the heat sink 11 outside the device box 1, the positioning box 2 can be fixedly connected to the device box 1 by tightening the fixing bolts 3, and then the heat sink 11 is inserted Into the slot 7 of the positioning box 2, as the heat dissipation box 11 is positioned deeper, the limit block 15 enters the limit groove 14 under the action of the positioning spring 12, so that the heat dissipation box 11 is fixedly connected with the positioning box 2 and the device box 1, so that the heat sink 8 starts to dissipate heat under the action of the telescopic spring 16, and the cooling bag 6 in the cooling port 5 cools the heat sink 8, further enhancing the heat dissipation efficiency. At the same time, the heat dissipation box 11 can be disassembled in time under long-term working conditions to replace the heat sink 8 and the cooling bag 6, thereby increasing the heat dissipation time, thereby increasing the life of the device and reducing safety hazards. The device box 1 and the outer side of the positioning box 2 are both provided with an anti-static layer.
[0022] When in use, the device element 4 is placed in the device box 1, and then the positioning box 2 is sleeved on the outside of the device box 1, and the two fixing bolts 3 are tightened. At this time, the positioning box 2 is fixedly connected to the device box 1, and then the two heat sinks 11 are inserted into the upper and lower slots 7 of the positioning box 2. After the heat sink 11 is in position, the limit groove 14 is aligned with the limit block 15. At this time, under the action of the positioning spring 12, the limit block 15 enters the limit groove 14 to fix the heat sink 11. At this time, under the action of the telescopic spring 16, the heat sink 8 is tightly attached to the heat absorption net 9 on the upper and lower sides of the device box 1, and the heat dissipation work of the device element 4 begins. At the same time, the telescopic spring 16 provides a certain space to ensure that heat can be transferred from the heat sink 8 to the cooling bag 6 in the cooling port 5, thereby cooling the heat sink 8. After long-term work in the later stage, the positioning box 2 and the heat sink 11 can be disassembled, and the heat sink 8 and the cooling bag 6 can be maintained and replaced to maintain the overall heat dissipation efficiency of the device and avoid safety hazards.
[0023] 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 anti-reverse connection device, comprising a device box (1), characterized in that: A device element (4) is fixedly arranged in the device box (1), a plurality of element feet (10) are fixedly connected to the right side of the device element (4), and the plurality of element feet (10) all penetrate the side wall of the device box (1), a heat absorbing net (9) is arranged on the upper and lower sides of the device box (1), a positioning box (2) is sleeved on the outer side of the device box (1), a slot (7) is arranged on the upper and lower sides of the positioning box (2), and positioning grooves (13) are arranged on the two side walls of the two slots (7), and the bottoms of the four positioning grooves (13) are fixedly connected to positioning springs (12), and the other ends of the four positioning springs (12) are A limiting block (15) is fixedly connected, a heat sink (11) is provided in each of the two slots (7), a cooling port (5) is provided on the top of each of the two heat sinks (11), a cooling bag (6) is fixedly provided in each of the two cooling ports (5), a plurality of telescopic springs (16) are fixedly connected to the inner walls of each of the two heat sinks (11), a heat sink (8) is fixedly connected to the other ends of the plurality of telescopic springs (16), limiting slots (14) are provided on both sides of each of the two heat sinks (11), the sizes of the four limiting slots (14) are consistent with the sizes of the limiting blocks (15), and the positions correspond one to one.
2. The photovoltaic reverse connection protection device according to claim 1, characterized in that: The device box (1) and the positioning box (2) are fixedly connected via two fixing bolts (3).
3. The photovoltaic anti-reverse connection device according to claim 1, characterized in that: Both ends of the four positioning springs (12) are fixedly connected to the positioning groove (13) and the limiting block (15) via a fixing plate.
4. The photovoltaic reverse connection protection device according to claim 1, characterized in that: The tops and bottoms of the plurality of telescopic springs (16) are fixedly connected to the inner wall of the heat dissipation box (11) and the heat dissipation fins (8) via a fixing plate.
5. The photovoltaic anti-reverse connection device according to claim 1, characterized in that: The sizes of the two heat sinks (8) are consistent with the sizes of the heat absorbing net (9), and their positions correspond one to one.
6. The photovoltaic anti-reverse connection device according to claim 1, characterized in that: The device box (1) and the positioning box (2) are both provided with antistatic layers on their outer sides.