Photovoltaic inverter with anti-theft function

Abstract

The utility model discloses a photovoltaic inverter with anti -theft function, including convexity support plate, positioning board spare, base and self -locking part, the back of convexity support plate is provided with positioning board spare, and self -locking part sets up in the inside of base, the inside of convexity support plate is provided with photovoltaic inverter main part, and the junction of convexity support plate and positioning board spare is provided with spring axle, and the both sides of convexity support plate are provided with the screw connected with base, the self -locking part includes the engagement push, and the engagement push sets up in the inside of positioning board spare, and the both sides of the top of engagement push all are provided with force slide block, and the opposite sides of two force slide blocks all are provided with the engagement lever of engagement with screw. The utility model sets up the self -locking part, when the screw is loose, the engagement push in self -locking part will move under spring axle elasticity and the linkage effect, drives force slide block, makes the engagement lever enter the engagement slot hole of screw through thread transmission system, realizes the firm locking to screw.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic inverter technology, specifically a photovoltaic inverter with anti-theft function. Background Technology

[0002] With the increasing global demand for clean energy, solar energy, as an abundant and renewable energy source, has received widespread attention for its development and utilization. As the core equipment in a solar photovoltaic power generation system, the photovoltaic inverter powers household and industrial appliances, and its performance and stability directly affect the overall operating efficiency and reliability of the photovoltaic power generation system.

[0003] In practical applications, photovoltaic (PV) inverters are typically installed outdoors, such as on rooftops or in open spaces. These installation locations expose PV inverters to numerous security risks, with theft being a particularly prominent issue. Because PV inverters themselves have economic value and contain valuable electronic components and metal parts, they are easy targets for thieves. Once a PV inverter is stolen, it not only leads to direct economic losses but also disrupts the normal operation of the PV power generation system, causing inconvenience and additional maintenance and replacement costs for users.

[0004] Most existing photovoltaic inverter mounting methods are quite simple, typically relying on ordinary bolts and other connectors to fix the inverter to a bracket or plate. This mounting method lacks an effective anti-theft mechanism, allowing criminals to easily unscrew the bolts using common tools, disassemble the photovoltaic inverter, and steal it. This fails to effectively prevent theft and poses a significant security risk to photovoltaic inverters.

[0005] Furthermore, most photovoltaic inverters currently fail to issue timely alarms when illegally dismantled. Users often only discover the inverter is missing some time after the theft, by which time the best opportunity to recover it has been missed, and the losses caused by the theft are irreversible. The inability to monitor and alert to illegal intrusion in real time significantly reduces the anti-theft effectiveness of photovoltaic inverters.

[0006] To address the above shortcomings, a photovoltaic inverter with anti-theft function is proposed. Utility Model Content

[0007] This invention provides a photovoltaic inverter with anti-theft function, aiming to improve the problems of insufficient anti-theft performance of fixed structures and lack of real-time anti-theft alarm function.

[0008] This utility model is implemented as follows: A photovoltaic inverter with anti-theft function includes a convex support plate, a positioning plate, a base and a self-locking component. The positioning plate is provided on the back side of the convex support plate, the base is provided on the back side of the convex support plate and the positioning plate, and the self-locking component is provided on the inner side of the base. The photovoltaic inverter body is set on the inner side of the convex support plate, and four fixing blocks are fixedly installed on the outer surface of the convex support plate. A spring shaft is set at the connection between the convex support plate and the positioning plate. Reinforcing parts are set on both sides of the photovoltaic inverter body, and screws connected to the base are set on both sides of the convex support plate. The self-locking component includes a locking push block, which is located inside the positioning plate. Both sides of the top of the locking push block are provided with force-bearing sliders, and the opposite sides of the two force-bearing sliders are provided with locking rods that engage with screws.

[0009] Preferably, the front of the convex support plate is provided with an installation groove, and the side of the installation groove is provided with a positioning frame. The main body of the photovoltaic inverter is fixedly installed inside the installation groove and the positioning frame. Both sides of the positioning frame are provided with reinforcing slots, and the reinforcing parts are installed inside the reinforcing slots.

[0010] Preferably, the middle section of the reinforcing member is provided with a reinforcing clip that engages with the reinforcing slot, and the top of the reinforcing member is provided with a pressing plate that fits against the top surface of the photovoltaic inverter body.

[0011] Preferably, the fixing blocks are fixed to the four corners of the positioning frame by bolts. The side of the fixing blocks is provided with a limiting plate that fits against the side of the photovoltaic inverter body. The opposite sides of two adjacent fixing blocks are provided with a common reinforcing rod, and the back of the reinforcing part fits against the outer surface of the reinforcing rod.

[0012] Preferably, the convex support plate has a positioning inner groove on its back side, and positioning slide grooves are provided on both sides of the inner wall of the positioning inner groove. A locking push block is provided at the center of the inner side of the positioning inner groove. Positioning sliders that slide and are slidably installed with the positioning slide grooves are provided on both sides of the positioning plate. Protective plates that are fixed to the positioning plate are provided on both the upper and lower sides of the convex support plate.

[0013] Preferably, the top of the screw is provided with a screw head located outside the convex support plate, and the inner side of the screw is provided with a locking shaft located inside the base, and the outer surface of the locking shaft is provided with a locking groove.

[0014] Preferably, the engaging push block and the spring shaft are on the same line, and the opposite sides of the two force-bearing sliders are provided with inclined plates that can fit with the engaging push block. The top of the force-bearing slider is provided with a pulley, and the inner side of the base is provided with a built-in sliding plate for the pulley to slide.

[0015] Preferably, both sides of the inner cavity of the base are fixedly installed with built-in threaded groove tubes, and the opposite sides of the two force-bearing sliders are fixedly installed with support rods. The outer ends of the two support rods are rotatably installed with threaded shafts, and the threaded shafts are threadedly installed on the inner side of the built-in threaded groove tubes.

[0016] Preferably, both threaded shafts have locking rods fixedly installed at their outer ends, and the locking rods can be engaged with the inner side of the locking slot.

[0017] Preferably, the spring shaft is fixedly installed on the inner side of the positioning plate, and the inner side of the positioning plate is provided with a spring force sensor corresponding to the spring shaft. The inner side of the base is provided with a module that is signal-connected to the spring force sensor, and the module is connected to an alarm.

[0018] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a self-locking component. When the screw is loosened, the locking push block in the self-locking component will move under the elastic force of the spring shaft and the linkage action, driving the force-bearing slider. Through the thread transmission system, the locking rod is locked into the locking slot of the screw, realizing a firm lock on the screw. This self-locking structure makes it difficult for criminals to unscrew the screw and disassemble the photovoltaic inverter, effectively resisting theft, greatly enhancing the anti-theft performance of the fixed structure, and ensuring the safety of the photovoltaic inverter.

[0019] 2. This utility model incorporates a spring force sensor and an alarm to address the lack of real-time alarm functionality. The spring shaft is connected to the spring force sensor. When abnormal situations such as unauthorized disassembly cause a change in the force on the spring shaft, the spring force sensor can detect the change in spring force in real time and transmit the signal to the module. After analysis and processing, the module immediately triggers the alarm. This design allows users to be aware of unauthorized intrusion into the photovoltaic inverter in a timely manner, enabling them to take timely measures and improving the security and anti-theft performance of the photovoltaic inverter. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the top structure of the convex support plate of this utility model; Figure 3 This is a schematic diagram of the internal structure of the base of this utility model; Figure 4 This is a schematic diagram of the connection between the positioning plate and the convex support plate of this utility model; Figure 5 This is a schematic diagram of the screw structure of this utility model.

[0021] In the diagram: 1. Convex support plate; 11. Mounting groove; 12. Positioning frame; 13. Reinforcing slot; 14. Positioning inner groove; 15. Positioning slide; 2. Positioning plate; 21. Protective plate; 22. Positioning slider; 3. Base; 31. Built-in threaded groove tube; 4. Photovoltaic inverter body; 5. Screw; 51. Engaging shaft; 52. Engaging slot hole; 53. Screw head; 6. Fixing block; 61. Limiting plate; 62. Reinforcing rod; 7. Reinforcing component; 71. Reinforcing block; 72. Pressing plate; 8. Spring shaft; 9. Engaging push block; 91. Force-bearing slider; 92. Inclined plate; 93. Pulley; 94. Support rod; 95. Threaded shaft; 96. Engaging rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1 Please see Figure 1-5 A photovoltaic inverter with anti-theft function includes a convex support plate 1, a positioning plate 2, a base 3, and a self-locking component. The positioning plate 2 is provided on the back side of the convex support plate 1, the base 3 is provided on the back side of the convex support plate 1 and the positioning plate 2, the self-locking component is provided on the inner side of the base 3, the photovoltaic inverter body 4 is provided on the inner side of the convex support plate 1, and a spring shaft 8 is provided at the connection between the convex support plate 1 and the positioning plate 2.

[0026] like Figure 2 As shown, the front of the convex support plate 1 is provided with a mounting groove 11, and the side of the mounting groove 11 is provided with a positioning frame 12. The photovoltaic inverter body 4 is fixedly installed inside the mounting groove 11 and the positioning frame 12, so as to ensure that its position is accurate and stable.

[0027] Both sides of the photovoltaic inverter body 4 are provided with reinforcement parts 7, and both sides of the positioning frame 12 are provided with reinforcement slots 13. The reinforcement parts 7 are installed inside the reinforcement slots 13. The middle section of the reinforcement parts 7 is provided with a reinforcement block 71 that engages with the reinforcement slots 13 to initially fix the reinforcement parts 7. The top of the reinforcement parts 7 is provided with a pressing plate 72 that fits against the top surface of the photovoltaic inverter body 4 to further fix the photovoltaic inverter body 4 and prevent it from shaking up and down.

[0028] Four fixing blocks 6 are fixedly installed on the outer surface of the convex support plate 1. The fixing blocks 6 are fixed to the four corners of the positioning frame 12 by bolts. The side of the fixing blocks 6 is provided with a limiting plate 61 that fits against the side of the photovoltaic inverter body 4, which can limit the side of the photovoltaic inverter body 4 and prevent it from moving left and right. The opposite sides of two adjacent fixing blocks 6 are provided with a common reinforcing rod 62. The back of the reinforcing part 7 fits against the outer surface of the reinforcing rod 62 to enhance the stability of the overall structure.

[0029] The convex support plate 1 has a positioning inner groove 14 on its back side. The inner walls of both sides of the positioning inner groove 14 have positioning slide grooves 15. A locking push block 9 is provided at the center of the inner side of the positioning inner groove 14. The positioning plate 2 has positioning sliders 22 on both sides that are slidably installed with the positioning slide grooves 15, so that the positioning plate 2 can slide along the positioning slide grooves 15 on the back side of the convex support plate 1. The upper and lower sides of the convex support plate 1 are provided with protective plates 21 that are fixed to the positioning plate 2, which play a certain protective role for the positioning plate 2.

[0030] like Figure 5 As shown, screws 5 connected to the base 3 are provided on both sides of the convex support plate 1. The top of the screw 5 is provided with a screw head 53 located on the outside of the convex support plate 1. The inner side of the screw 5 is provided with a locking shaft 51 located on the inside of the base 3. The outer surface of the locking shaft 51 is provided with a locking groove 52.

[0031] It should be noted that screw 5 is used to connect the convex support plate 1 and the base 3, and is a key connecting component of the entire device. The screw head 53 is located on the outside of the convex support plate 1, which makes it convenient to use tools to tighten or loosen it. The setting of the engaging shaft 51 and the engaging slot 52 provides the target for the self-locking component. When the anti-theft function is implemented, the self-locking component can lock the screw 5 by cooperating with the engaging slot 52, preventing the screw 5 from being illegally unscrewed, thereby playing an anti-theft role.

[0032] Example 2 Please see Figure 1 , 34, 5, The self-locking component includes a locking push block 9, which is located inside the positioning plate 2. Both sides of the top of the locking push block 9 are provided with force-bearing sliders 91, and the opposite sides of the two force-bearing sliders 91 are provided with locking rods 96 that engage with screws 5.

[0033] like Figure 3 As shown, the locking push block 9 and the spring shaft 8 are on the same line, ensuring the accuracy and stability of the direction of the pushing force. The two force-bearing sliders 91 are provided with inclined plates 92 on opposite sides that can fit with the locking push block 9. The inclined plates 92 enable the locking push block 9 to convert the vertical force into a horizontal force that causes the force-bearing sliders to slide in opposite directions when pushed, realizing the transmission and direction conversion of force. The top of the force-bearing slider 91 is provided with a pulley 93, and the inner side of the base 3 is provided with an internal sliding plate for the pulley 93 to slide. The cooperation between the pulley 93 and the internal sliding plate greatly reduces the friction when the force-bearing slider slides, making the sliding of the force-bearing slider smoother and more sensitive, and able to quickly respond to the pushing action of the locking push block 9, ensuring that the self-locking function is realized in a timely and effective manner. By pushing the locking push block 9, the locking push block 9 causes the two force-bearing sliders 91 to slide in opposite directions.

[0034] Both sides of the inner cavity of the base 3 are fixedly installed with built-in threaded groove tubes 31. Support rods 94 are fixedly installed on opposite sides of the two force-bearing sliders 91. Threaded shafts 95 are rotatably installed on the outer ends of the two support rods 94. The threaded shafts 95 are threadedly installed on the inner side of the built-in threaded groove tubes 31. Engaging rods 96 are fixedly installed on the outer ends of the two threaded shafts 95. Engaging rods 96 can be engaged in the inner side of the engaging slot hole 52.

[0035] It should be noted that the built-in threaded groove tube 31, support rod 94, threaded shaft 95, and locking rod 96 constitute a threaded transmission system. When the force-bearing slider 91 slides in opposite directions, the support rod 94 drives the threaded shaft 95 to rotate within the built-in threaded groove tube 31. Due to the transmission effect of the thread, the threaded shaft 95 moves outward along the built-in threaded groove tube 31, thereby driving the locking rod 96 to move outward and engage with the locking slot 52 of the screw 5, thus achieving a firm lock on the screw 5. This threaded transmission method has self-locking properties. Once the locking rod 96 engages with the locking slot, it will not easily disengage without external force to rotate the threaded shaft 95 in the opposite direction, greatly enhancing the reliability and stability of the anti-theft self-locking mechanism. Therefore, a processor connected to the module circuit can be installed at the built-in threaded groove tube 31 to control the retraction of the locking rod 96.

[0036] The spring shaft 8 is fixedly installed on the inner side of the positioning plate 2. The inner side of the positioning plate 2 is provided with a spring force sensor corresponding to the spring shaft 8. The inner side of the base 3 is provided with a module that is signal-connected to the spring force sensor. The module is connected to an alarm.

[0037] It should be noted that the spring shaft not only plays a certain positioning and linkage role in the previous structure, but also works in conjunction with the spring force sensor to monitor the changes in the spring force on the spring shaft 8 in real time. When abnormal situations such as unauthorized disassembly occur, the force state of the spring shaft 8 will change. The spring force sensor converts this change into an electrical signal and transmits it to the module in the base 3. After analyzing and processing the signal, the module triggers the alarm. This design enables the photovoltaic inverter to have a real-time anti-theft alarm function, which can promptly detect and warn of illegal intrusion, thereby improving the security and anti-theft performance of the photovoltaic inverter.

[0038] Work process When the entire photovoltaic inverter is completely fixed, the convex support plate 1 and the positioning plate 2 are in contact, and all components are in a stable state. When the screw 5 is loosened, the convex support plate 1 is affected by the elastic force of the spring shaft 8 and slides off with the help of the positioning groove 15. Due to the elastic force of the spring shaft 8, the elastic force sensor detects the change in elastic force and transmits the signal to the module. The module drives the locking push block 9 to slide inward and triggers the alarm to sound an alarm. When the locking push block 9 slides inward, it drives the force-bearing slider 91 to slide relative to it. The force-bearing slider 91 drives the locking rod 96 to engage in the locking slot 52 of the screw 5 through the support rod 94 and the threaded shaft 95, thus locking the screw 5 and preventing the screw 5 from being pulled out, thereby achieving the anti-theft effect.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic inverter with anti-theft function, comprising a convex support plate (1), a positioning plate (2), a base (3) and a self-locking component, wherein the positioning plate (2) is provided on the back side of the convex support plate (1), the base (3) is provided on the back side of the convex support plate (1) and the positioning plate (2), and the self-locking component is provided on the inner side of the base (3); Its features are: The inner side of the convex support plate (1) is provided with a photovoltaic inverter body (4), and four fixing blocks (6) are fixedly installed on the outer surface of the convex support plate (1). A spring shaft (8) is provided at the connection between the convex support plate (1) and the positioning plate (2). Reinforcing parts (7) are provided on both sides of the photovoltaic inverter body (4). Screws (5) that connect to the base (3) are provided on both sides of the convex support plate (1). The self-locking component includes a locking push block (9), which is located on the inner side of the positioning plate (2). Both sides of the top of the locking push block (9) are provided with force-bearing sliders (91), and the opposite sides of the two force-bearing sliders (91) are provided with locking rods (96) that engage with the screw (5).

2. A photovoltaic inverter with anti-theft function according to claim 1, characterized in that: The convex support plate (1) has an installation groove (11) on its front side and a positioning frame (12) on its side. The photovoltaic inverter body (4) is fixedly installed inside the installation groove (11) and the positioning frame (12). The positioning frame (12) has a reinforcing slot (13) on both sides and the reinforcing part (7) is installed inside the reinforcing slot (13).

3. A photovoltaic inverter with anti-theft function according to claim 2, characterized in that: The middle section of the reinforcement member (7) is provided with a reinforcement block (71) that engages with the reinforcement slot (13), and the top of the reinforcement member (7) is provided with a pressing plate (72) that fits against the top surface of the photovoltaic inverter body (4).

4. A photovoltaic inverter with anti-theft function according to claim 2, characterized in that: The fixing block (6) is fixed to the four corners of the positioning frame (12) by bolts. The side of the fixing block (6) is provided with a limiting plate (61) that fits against the side of the photovoltaic inverter body (4). The opposite sides of two adjacent fixing blocks (6) are provided with a common reinforcing rod (62). The back side of the reinforcing part (7) fits against the outer surface of the reinforcing rod (62).

5. A photovoltaic inverter with anti-theft function according to claim 1, characterized in that: The convex support plate (1) has a positioning inner groove (14) on its back side. The inner walls of both sides of the positioning inner groove (14) are provided with positioning slide grooves (15). A locking push block (9) is provided at the center of the inner side of the positioning inner groove (14). The positioning plate (2) is provided with positioning sliders (22) that are slidably installed with the positioning slide grooves (15) on both sides. The convex support plate (1) is provided with protective plates (21) that are fixed to the positioning plate (2) on both the upper and lower sides.

6. A photovoltaic inverter with anti-theft function according to claim 1, characterized in that: The top of the screw (5) is provided with a screw head (53) located outside the convex support plate (1), and the inner side of the screw (5) is provided with a locking shaft (51) located inside the base (3). The outer surface of the locking shaft (51) is provided with a locking groove (52).

7. A photovoltaic inverter with anti-theft function according to claim 1, characterized in that: The engaging push block (9) and the spring shaft (8) are on the same line. The two force-bearing sliders (91) are provided with inclined plates (92) that can fit with the engaging push block (9) on opposite sides. The top of the force-bearing slider (91) is provided with a pulley (93). The inner side of the base (3) is provided with a built-in sliding plate that allows the pulley (93) to slide.

8. A photovoltaic inverter with anti-theft function according to claim 6, characterized in that: Both sides of the inner cavity of the base (3) are fixedly installed with built-in threaded groove tubes (31), and the opposite sides of the two force-bearing sliders (91) are fixedly installed with support rods (94). The outer ends of the two support rods (94) are rotatably installed with threaded shafts (95), and the threaded shafts (95) are threadedly installed on the inner side of the built-in threaded groove tubes (31).

9. A photovoltaic inverter with anti-theft function according to claim 8, characterized in that: Both of the threaded shafts (95) have locking rods (96) fixedly installed at their outer ends, and the locking rods (96) can be locked into the inner side of the locking slot (52).

10. A photovoltaic inverter with anti-theft function according to claim 1, characterized in that: The spring shaft (8) is fixedly installed on the inner side of the positioning plate (2). The inner side of the positioning plate (2) is provided with a spring force sensor corresponding to the spring shaft (8). The inner side of the base (3) is provided with a module that is signal-connected to the spring force sensor. The module is connected to an alarm.

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