Anti-interference silicon controlled rectifier driving protection device

Abstract

This utility model relates to an anti-interference thyristor drive protection device, belonging to the field of electronic circuit technology. It includes a base plate, a protective cover connected to the top of the base plate, and a thyristor drive body connected to the top of the base plate. Heat-conducting mechanisms are provided on both sides of the thyristor drive body. A pair of second ventilation openings and a first ventilation opening are respectively provided on the left and right sides of the protective cover. An intake fan and an exhaust fan are respectively connected to the outer side of the protective cover. Airflow guiding mechanisms are provided on both side walls of the protective cover near the second and first ventilation openings. By providing heat-conducting plates on both sides of the thyristor drive body, heat inside the thyristor drive body is easily dissipated. The heat dissipation area is increased by heat dissipation fins. Simultaneously, the intake and exhaust fans on both sides are activated, continuously driving air circulation, allowing cool air to continuously flow over the heat dissipation fins, carrying away heat and achieving efficient heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of electronic circuit technology, specifically relating to an anti-interference thyristor drive protection device. Background Technology

[0002] A thyristor is a semiconductor device with controllable conductivity. An anti-interference thyristor driver is a circuit device used to control the conduction and turn-off of a thyristor. It can stably and reliably drive the thyristor in an environment with interference to achieve precise control of various electrical equipment in the power system. In electronic circuits, anti-interference thyristor drivers are widely used in various circuits such as motor control, switching power supplies, and dimmers.

[0003] Currently, most anti-interference thyristor drivers use heat sinks for heat dissipation during use. However, heat sinks are relatively large, which may limit their installation in some space-constrained devices. Moreover, the heat dissipation effect of heat sinks is greatly affected by ambient temperature, and their heat dissipation efficiency is relatively low in high-temperature environments, making it difficult to provide good overheat protection. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference thyristor drive protection device that solves the problems mentioned in the background art.

[0005] The specific technical solution adopted in this utility model is as follows:

[0006] An anti-interference thyristor drive protection device includes a base plate, a protective cover connected above the base plate, a thyristor drive body fixedly connected above the base plate at the middle position inside the protective cover, heat conduction mechanisms provided on both sides of the thyristor drive body, and a top plate connected to the top of the base plate.

[0007] The protective cover has a pair of second ventilation openings and a first ventilation opening on its left and right sides, respectively. An intake fan and an exhaust fan are connected to the outer side of the protective cover near the second ventilation openings and the first ventilation openings, respectively.

[0008] The protective cover has flow guiding mechanisms installed on both sides near the second and first ventilation openings.

[0009] The present invention is further configured such that: the heat conduction mechanism includes a pair of heat conduction plates, heat dissipation fins are connected to the outer side of the heat conduction plates, U-shaped fixing brackets are connected to both sides of the heat conduction plates, and a silicone grease layer is connected to the inner side of the heat conduction plates.

[0010] The present invention is further configured such that the heat dissipation fins are distributed laterally on both sides, and the positions of the two sides of the heat dissipation fins correspond to the second vent and the first vent, respectively.

[0011] The present invention is further configured such that: a second buckle plate is connected to both sides of the heat dissipation fins on the outer side of the heat conduction plate, and a second slot is provided on both sides of the U-shaped fixing frame, with the position of the second buckle plate corresponding to the position of the second slot.

[0012] This utility model is further configured such that the outer side of the second buckle plate has rounded corners.

[0013] The present invention is further configured such that the air guiding mechanism includes an upper air guide plate and a lower air guide plate, wherein the upper air guide plate is located above the lower air guide plate.

[0014] The present invention is further configured such that: a first slot is provided on both the front and rear sides of the protective cover, a first buckle plate is connected inside the first slot, and the top of the first buckle plate is fixedly connected to the top plate.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This utility model discloses an anti-interference thyristor drive protection device. By setting heat-conducting plates on both sides of the thyristor drive body, heat inside the thyristor drive body can be easily discharged. The heat dissipation area is increased by heat dissipation fins. At the same time, the intake fans and exhaust fans on both sides are turned on. The fans force airflow. The intake fans quickly introduce a large amount of cold air into the heat dissipation fins, while the exhaust fans quickly extract the hot air. In this process, the intake fans and exhaust fans continuously promote air circulation, allowing cold air to continuously flow through the heat dissipation fins and carry away heat, thus achieving efficient heat dissipation.

[0017] This utility model discloses an anti-interference thyristor drive protection device. By setting an upper air guide plate and a lower air guide plate on the upper and lower sides of the first and second vents respectively, it is beneficial to guide the airflow accurately to the heat dissipation fins, improve the airflow utilization rate, and carry out targeted heat dissipation to enhance the effectiveness of heat dissipation.

[0018] This utility model discloses an anti-interference thyristor drive protection device. By setting movable and detachable U-shaped fixing brackets on both sides of the heat-conducting plate, it is convenient to disassemble the heat-conducting plate on both sides, thereby facilitating the periodic inspection and replacement of the thermal grease layer and ensuring normal heat conduction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this practical tool;

[0020] Figure 2 This is an exploded view of the top plate and protective cover in this utility model;

[0021] Figure 3 This is a side sectional view of the protective cover used in this utility model;

[0022] Figure 4 This is an exploded view of the U-shaped fixing bracket and heat-conducting plate used in this application.

[0023] In the diagram: 1. Top plate; 2. Protective cover; 3. Bottom plate; 4. First slot; 5. Inlet fan; 6. SCR driver body; 7. Heat sink fins; 8. Exhaust fan; 9. First mounting plate; 10. First vent; 11. Upper air guide plate; 12. Second vent; 13. Lower air guide plate; 14. U-shaped bracket; 15. Heat-conducting plate; 16. Second slot; 17. Second mounting plate; 18. Thermal grease layer; Detailed Implementation

[0024] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-4 As shown, an anti-interference thyristor drive protection device includes a base plate 3, a protective cover 2 connected above the base plate 3, a thyristor drive body 6 fixedly connected above the base plate 3 at the middle position inside the protective cover 2, heat conduction mechanisms provided on both sides of the thyristor drive body 6, a top plate 1 connected to the top of the base plate 3, a pair of second ventilation ports 12 and a first ventilation port 10 respectively opened on the left and right sides of the protective cover 2, an intake fan 5 and an exhaust fan 8 respectively connected to the outer side of the protective cover 2 near the second ventilation ports 12 and the first ventilation ports 10, and airflow guiding mechanisms provided on both side walls of the protective cover 2 near the second ventilation ports 12 and the first ventilation ports 10. The heat conduction mechanism includes a pair of heat conduction plates 15, heat dissipation fins 7 connected to the outer side of the heat conduction plates 15, U-shaped fixing brackets 14 connected to both sides of the heat conduction plates 15, and a silicone grease layer 18 connected to the inner side of the heat conduction plates 15 to facilitate the heat dissipation of the heat inside the thyristor drive body 6 and increase the heat dissipation area through the heat dissipation fins 7.

[0026] like Figure 3 As shown, the heat dissipation fins 7 are distributed horizontally on both sides, and the positions of the two sides of the heat dissipation fins 7 correspond to the second vent 12 and the first vent 10, respectively. This facilitates the continuous flow of cold air through the heat dissipation fins 7, which carries away heat and achieves efficient heat dissipation.

[0027] like Figure 4 As shown, the outer side of the heat-conducting plate 15 is connected to the second buckle plate 17 on both sides of the heat dissipation fin 7. The U-shaped fixing bracket 14 has a second slot 16 on both sides. The position of the second buckle plate 17 corresponds to the position of the second slot 16. When fixing the heat-conducting plates 15 on both sides, the two sides of the U-shaped fixing bracket 14 are fastened to the outer side of the second buckle plate 17 on both sides, so that the second slot 16 is fastened to the outer side of the second buckle plate 17, which is conducive to fixing the heat-conducting plates 15 on both sides. Conversely, the heat-conducting plates 15 on both sides can be disassembled and assembled.

[0028] like Figure 4 As shown, the outer side of the second buckle plate 17 is provided with rounded corners, which makes it easier for the U-shaped fixing bracket 14 to be better fastened to the outer side of the second buckle plate 17 when installing the U-shaped fixing bracket 14, making the operation convenient.

[0029] like Figure 2 and Figure 3 As shown, the airflow guiding mechanism includes an upper air guide plate 11 and a lower air guide plate 13. The upper air guide plate 11 is located above the lower air guide plate 13, which helps to guide the airflow accurately to the heat dissipation fins 7, improve the utilization rate of the airflow, and carry out targeted heat dissipation. It guides the airflow to the parts of the heat dissipation fins 7 with high heat generation, thereby enhancing the effectiveness of heat dissipation.

[0030] like Figure 2 As shown, the protective cover 2 has a first slot 4 on both the front and rear sides. The first slot 4 is connected to a first buckle plate 9. The top of the first buckle plate 9 is fixedly connected to the top plate 1. The connection between the first slot 4 and the first buckle plate 9 makes it easy to disassemble and assemble the top plate 1, increasing the flexibility of operation.

[0031] The working principle of this utility model is as follows: By setting heat-conducting plates 15 on both sides of the thyristor driver body 6, the heat inside the thyristor driver body 6 can be easily discharged. The heat dissipation area is increased by the heat dissipation fins 7. At the same time, the intake fans 5 and exhaust fans 8 on both sides are turned on. The fans force the air to flow. The intake fan 5 quickly introduces a large amount of cold air into the heat dissipation fins 7, while the exhaust fan 8 quickly extracts the hot air. In this process, the intake fan 5 and exhaust fan 8 continuously promote air circulation, allowing cold air to continuously flow through the heat dissipation fins 7, carrying away heat and achieving efficient heat dissipation. At the same time, the upper air guide plate 11 and the lower air guide plate 13 are respectively set on the upper and lower sides of the first vent 10 and the second vent 12, which helps to guide the airflow accurately to the heat dissipation fins 7, improve the airflow utilization rate, and carry out targeted heat dissipation to enhance the effectiveness of heat dissipation.

[0032] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. An anti-interference thyristor drive protection device, characterized in that: Includes a base plate (3), a protective cover (2) is connected above the base plate (3), a thyristor drive body (6) is fixedly connected above the base plate (3) at the middle position inside the protective cover (2), heat conduction mechanisms are provided on both sides of the thyristor drive body (6), and a top plate (1) is connected to the top of the base plate (3). The protective cover (2) has a pair of second ventilation openings (12) and a first ventilation opening (10) on its left and right sides respectively. An intake fan (5) and an exhaust fan (8) are connected to the outer side of the protective cover (2) near the second ventilation opening (12) and the first ventilation opening (10) respectively. The protective cover (2) has flow guiding mechanisms on both sides near the second vent (12) and the first vent (10).

2. The anti-interference thyristor drive protection device according to claim 1, characterized in that: The heat conduction mechanism includes a pair of heat conduction plates (15), with heat dissipation fins (7) connected to the outer side of the heat conduction plates (15), U-shaped fixing brackets (14) connected to both sides of the heat conduction plates (15), and a silicone grease layer (18) connected to the inner side of the heat conduction plates (15).

3. The anti-interference thyristor drive protection device according to claim 2, characterized in that: The heat dissipation fins (7) are distributed horizontally on both sides, and the positions of the two sides of the heat dissipation fins (7) correspond to the second vent (12) and the first vent (10) respectively.

4. The anti-interference thyristor drive protection device according to claim 3, characterized in that: The outer side of the heat-conducting plate (15) is connected to the second buckle plate (17) on both sides of the heat dissipation fin (7), and the U-shaped fixing bracket (14) is provided with the second slot (16) on both sides. The position of the second buckle plate (17) corresponds to the position of the second slot (16).

5. The anti-interference thyristor drive protection device according to claim 4, characterized in that: The outer side of the second buckle (17) is provided with rounded corners.

6. The anti-interference thyristor drive protection device according to claim 1, characterized in that: The air guiding mechanism includes an upper air guide plate (11) and a lower air guide plate (13), with the upper air guide plate (11) located above the lower air guide plate (13).

7. The anti-interference thyristor drive protection device according to claim 1, characterized in that: The protective cover (2) has a first slot (4) on both the front and rear sides. The first slot (4) is connected to a first buckle plate (9). The top of the first buckle plate (9) is fixedly connected to the top plate (1).

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