Grounding transformer with high heat dissipation performance and body structure thereof

Abstract

This invention provides a grounding transformer with high heat dissipation performance and its body structure, relating to the field of grounding transformer technology. It includes a thermally conductive pad located at the bottom of the inner wall of the transformer body. The surface of the thermally conductive pad has multiple sets of bottom heat dissipation holes. Through the coordinated design of a heat-absorbing plate, heat-conducting pillars, a heat-dissipating plate, a thermally conductive pad, bottom heat dissipation holes, heat dissipation fins, heat dissipation components, and a ventilation component, a comprehensive internal and external heat dissipation system is constructed, solving the problems of poor heat dissipation and slow heat airflow in existing grounding transformers. The heat-absorbing plate absorbs heat generated by internal electrical components and transfers it to the heat dissipation plate through the heat-conducting pillars. The heat dissipation fins increase the heat dissipation area, the fan accelerates airflow on the surface of the heat dissipation fins, and the fan blades of the ventilation component, in conjunction with the bottom heat dissipation holes, achieve air circulation between the inside and outside of the transformer, accelerating the discharge of hot air. Even in hot weather or under high load, the transformer body temperature remains stable, extending the equipment's service life.

Description

Technical Field

[0001] This invention relates to the field of grounding transformer technology, and more particularly to a grounding transformer with high heat dissipation performance and its body structure. Background Technology

[0002] Grounding transformers are crucial electrical devices in power systems, primarily used to provide a neutral point and ensure the normal operation of system grounding protection. They are widely used in power transmission and distribution. With the continuous increase in power load, the operating load on grounding transformers also rises, making their heat dissipation performance and operational safety key factors affecting equipment lifespan and power system stability.

[0003] However, existing grounding transformers generally suffer from the following defects: Their internal heat dissipation structure is not sufficiently permeable, causing heat generated during operation to accumulate internally and be difficult to dissipate quickly; their heat dissipation methods are relatively simple, mostly relying on external heat sinks, resulting in low efficiency. In hot weather or under high load, the slow airflow can easily lead to excessively high transformer temperatures, accelerating the aging of internal insulation components, shortening equipment lifespan, and even causing equipment failure; during voltage output, it is difficult to monitor the temperature and leakage of high-voltage and low-voltage terminals in real time. If abnormalities such as terminal overheating or leakage occur, they cannot be detected and warned of in time, easily leading to electric shock, short circuits, and other safety accidents, resulting in poor safety; and they lack a robust protective structure, allowing external dust and moisture to easily enter the equipment, affecting the operational stability of components.

[0004] Therefore, it is necessary to provide a new grounding transformer with high heat dissipation performance and its body structure to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a grounding transformer with high heat dissipation performance and its body structure.

[0006] The present invention provides a grounding transformer with high heat dissipation performance and its body structure, including a transformer body. A thermally conductive pad is provided at the bottom of the inner wall of the transformer body. The surface of the thermally conductive pad is provided with multiple sets of bottom heat dissipation holes, which are connected to the bottom of the transformer body. Thermally conductive columns are fixedly connected to the upper surface of the thermally conductive pad around its perimeter, and a heat dissipation plate is fixedly connected to the top of the thermally conductive columns. A heat-absorbing plate is attached to the upper surface of the heat dissipation plate. Mounting brackets are fixedly installed on both sides of the upper and lower ends of the transformer body, and positioning holes are opened at both ends of the mounting brackets. A heat dissipation component is fixedly installed on the bottom outer side of the transformer body, and heat dissipation fins are provided above the heat dissipation component. A top plate is fixedly connected to the mounting bracket located at the top of the transformer body, and a temperature and leakage current monitoring component is provided at the center of the upper surface of the top plate. High-voltage terminals and low-voltage terminals are respectively provided on both sides of the temperature and leakage current monitoring component. Hanging rings are fixedly connected to the top perimeter of the top of the top plate, and ventilation components are provided on the upper perimeter of the top surface of the top plate.

[0007] Preferably, the bottom heat dissipation holes are evenly distributed on the thermal pad, and the thermal pad is in close contact with the bottom of the inner wall of the transformer body.

[0008] Preferably, the heat-absorbing plate is disposed inside the transformer body, and the upper surface of the heat-absorbing plate is used to install electrical components inside the transformer body.

[0009] Preferably, the heat dissipation assembly includes a horizontal plate, a support plate, mounting holes, a mounting bracket, and a fan. The horizontal plate is fixedly connected to the outer side of the bottom of the transformer body. Support plates are fixedly connected to the bottom of both ends of the horizontal plate. Mounting holes are provided on the horizontal plate. Mounting brackets are provided in the mounting holes, and fans are installed on the mounting brackets. The fans are directed towards the heat dissipation fins.

[0010] Preferably, the heat dissipation fins are evenly distributed on the outer wall of the transformer body, and the heat dissipation fins pass through the transformer body and are fixedly connected to the heat dissipation plate.

[0011] Preferably, the temperature and leakage current monitoring component includes a positioning base, a mounting bracket, a power supply connector, a protective shell, a display panel, a locking block, a buzzer, and an antenna. The positioning base is fixedly connected to the top plate, and a mounting bracket is fixedly connected to the positioning base. A power supply connector is provided on the mounting bracket. A protective shell is snapped onto the mounting bracket, and a display panel is provided inside the protective shell. A locking block is provided on the outer wall of the protective shell, and a buzzer and an antenna are provided on both sides of the top of the protective shell.

[0012] Preferably, the high-voltage terminal and the low-voltage terminal are electrically connected to the temperature and leakage current monitoring components, and the power supply connector is electrically connected to the transformer body.

[0013] Preferably, the ventilation assembly includes a fixed sleeve, a dustproof net, a sealing ring, a drive motor, fan blades, an electric push rod, and a sealing cover. The fixed sleeve is embedded in the inner wall of the top plate and communicates with the transformer body. The fixed sleeve is provided with a dustproof net and a sealing ring, and a drive motor is installed in the sealing ring. The output end of the drive motor is connected to the fan blades. Electric push rods are provided on both sides of the inner wall of the sealing ring, and the output end of the electric push rods is connected to the sealing cover.

[0014] Preferably, the fan blades are oriented towards the inside of the transformer body, the sealing cover is adapted to the fixing sleeve, and the dustproof net is disposed on the inner wall of the fixing sleeve.

[0015] Compared with related technologies, the grounding transformer and its body structure with high heat dissipation performance provided by the present invention have the following beneficial effects: 1. Through the coordinated design of heat-absorbing plates, heat-conducting columns, heat-dissipating plates, heat-conducting pads, bottom heat dissipation holes, heat dissipation fins, heat dissipation components, and ventilation components, a comprehensive internal and external heat dissipation system is constructed, solving the problems of poor heat dissipation and slow heat airflow in existing grounding transformers. The heat-absorbing plate absorbs the heat generated by the internal electrical components and transfers it to the heat dissipation plate through the heat-conducting columns. The heat dissipation fins increase the heat dissipation area, the fan accelerates the airflow on the surface of the heat dissipation fins, and the fan blades of the ventilation components, in conjunction with the bottom heat dissipation holes, realize the air circulation between the inside and outside of the transformer, accelerate the exhaust of hot air, and ensure stable transformer body temperature even in hot weather or under high load, thus extending the service life of the equipment. 2. By installing temperature and leakage current monitoring components, real-time monitoring of the temperature and leakage current of both high-voltage and low-voltage terminals is achieved, solving the problem of poor safety in existing equipment. The monitoring components obtain power through a power connector, and the display panel displays the monitoring data in real time. When the terminal temperature is too high or leakage occurs, a buzzer will promptly issue an alarm signal, and the abnormal information will be transmitted to the control terminal via an antenna, facilitating timely handling by staff, preventing safety accidents, and improving the safety of equipment operation. 3. The dustproof screen of the ventilation component can prevent dust from entering the transformer body and avoid dust accumulation affecting heat dissipation and the operation of internal components. The sealing ring enhances the sealing performance and prevents moisture and dust from seeping in. The electric push rod drives the sealing cover to realize the opening and closing of the fixed sleeve. When the equipment stops running or in severe weather, the sealing cover is closed to protect the internal components, further improving the protection performance and service life of the equipment. 4. The overall structure is reasonably designed. The mounting bracket and positioning holes facilitate the quick installation and fixation of the equipment. The lifting rings facilitate the handling and hoisting of the equipment. The temperature and leakage current monitoring components adopt a snap-fit ​​installation, which is convenient for disassembly and maintenance. It is suitable for the installation and use needs of different scenarios, has strong practicality, and has high promotion and application value. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the grounding transformer with high heat dissipation performance and its body structure provided by the present invention; Figure 2 An exploded view of the overall structure of the grounding transformer with high heat dissipation performance and its body provided by the present invention; Figure 3 A cross-sectional view of the bottom end of the inner wall of the transformer body with high heat dissipation performance and its body structure provided by the present invention. Figure 4 A schematic diagram of the heat dissipation component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention; Figure 5 A schematic diagram of the temperature and leakage current monitoring component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention. Figure 6 A schematic diagram of the ventilation component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention.

[0017] The diagram is labeled as follows: 1. Transformer body; 2. Thermal pad; 3. Bottom heat dissipation holes; 4. Thermal column; 5. Heat sink; 6. Heat absorber; 7. Mounting bracket; 8. Positioning hole; 9. Heat dissipation assembly; 91. Horizontal plate; 92. Support plate; 93. Mounting hole; 94. Mounting bracket; 95. Fan; 10. Heat dissipation fins; 11. Top plate; 12. Temperature and leakage current monitoring assembly; 121. Positioning seat; 122. Card slot; 123. Power supply connector; 124. Protective shell; 125. Display panel; 126. Locking block; 127. Buzzer; 128. Antenna; 13. High voltage terminal; 14. Low voltage terminal; 15. Lifting ring; 16. Ventilation assembly; 161. Fixing sleeve; 162. Dustproof net; 163. Sealing ring; 164. Drive motor; 165. Fan blade; 166. Electric push rod; 167. Sealing cover. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to the following: Figure 1 — Figure 6 ,in, Figure 1 A schematic diagram of the overall structure of the grounding transformer with high heat dissipation performance and its body structure provided by the present invention; Figure 2 A cross-sectional view of the bottom end of the inner wall of the transformer body with high heat dissipation performance and its body structure provided by the present invention. Figure 3 A cross-sectional view of the heat-conducting pad of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention. Figure 4A schematic diagram of the heat dissipation component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention; Figure 5 A schematic diagram of the temperature and leakage current monitoring component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention. Figure 6 A schematic diagram of the ventilation component of the grounding transformer and its body structure with high heat dissipation performance provided by the present invention.

[0020] In the specific implementation process, the grounding transformer with high heat dissipation performance and its body structure, including the transformer body 1, serve as the basic load-bearing structure of the entire equipment, providing installation support and protection for all internal components and ensuring the stable operation of electrical components. A heat-conducting pad 2 is installed at the bottom of the inner wall of the transformer body 1, and the heat-conducting pad 2 is tightly attached to the bottom of the inner wall of the transformer body 1 to ensure smooth heat transfer. Multiple sets of bottom heat dissipation holes 3 are evenly distributed on the surface of the heat-conducting pad 2, and the bottom heat dissipation holes 3 are connected to the bottom of the transformer body 1, forming a channel for the internal hot air to be discharged, facilitating the rapid removal of internally accumulated heat.

[0021] The upper surface of the thermal pad 2 is fixedly connected with thermally conductive pillars 4 around its perimeter. The thermally conductive pillars 4 are made of a material with high thermal conductivity and are responsible for quickly conducting heat. A heat sink 5 is fixedly connected to the top of the thermally conductive pillars 4. A heat absorber 6 is attached to the upper surface of the heat sink 5. The heat absorber 6 is located inside the transformer body 1. The upper surface of the heat absorber 6 is used to install electrical components inside the transformer body 1. The heat generated when the electrical components are working is first absorbed by the heat absorber 6 and then transferred to the heat sink 5 through the thermally conductive pillars 4, thus achieving the initial conduction of heat.

[0022] Mounting brackets 7 are fixedly installed on both sides of the upper and lower ends of the transformer body 1. Positioning holes 8 are opened at both ends of the mounting brackets 7. Through the mounting brackets 7 and the positioning holes 8, the equipment can be quickly installed and fixed in the designated position to ensure the stability of the equipment during operation and avoid the normal operation of the equipment due to vibration.

[0023] Heat dissipation fins 10 are evenly distributed on the outer wall of the transformer body 1. The heat dissipation fins 10 pass through the transformer body 1 and are fixedly connected to the heat dissipation plate 5. The heat dissipation fins 10 increase the contact area between heat and air, accelerating heat dissipation. A heat dissipation assembly 9 is provided below the heat dissipation fins 10. The heat dissipation assembly 9 is fixedly installed on the bottom outer side of the transformer body 1. The heat dissipation assembly 9 includes a horizontal plate 91, a support plate 92, mounting holes 93, a mounting bracket 94, and a fan 95. The horizontal plate 91 is fixedly connected to the bottom outer side of the transformer body 1. Support plates 92 are fixedly connected to the bottom of both ends of the horizontal plate 91. The support plates 92 serve to support and fix the horizontal plate 91. Mounting holes 93 are provided on the horizontal plate 91. Mounting brackets 94 are provided in the mounting holes 93. A fan 95 is installed on the mounting bracket 94. The fan 95 is positioned facing the heat dissipation fins 10. Activating the fan 95 can accelerate the airflow on the surface of the heat dissipation fins 10, quickly remove the heat from the heat dissipation fins 10, prevent heat accumulation, and further improve heat dissipation efficiency.

[0024] A top plate 11 is fixedly connected to the mounting bracket 7 located at the top of the transformer body 1. The top plate 11 provides sealing protection for the top of the transformer body 1. A temperature and leakage current monitoring component 12 is installed at the center of the upper surface of the top plate 11. The temperature and leakage current monitoring component 12 is used to monitor the temperature and leakage current of the high-voltage terminal 13 and the low-voltage terminal 14 in real time. The temperature and leakage current monitoring component 12 includes a positioning seat 121, a card holder 122, a power supply connector 123, a protective shell 124, a display panel 125, a card block 126, a buzzer 127, and an antenna 128. The positioning seat 121 is fixedly connected to the top plate 11, and the card holder 122 is fixedly connected to the positioning seat 121. The card holder 122 is provided with a power supply connector 128. Electrical connector 123 is electrically connected to transformer body 1 to provide power to temperature and leakage monitoring component 12. A protective shell 124 is attached to the mounting bracket 122 via a locking block 126. The protective shell 124 protects internal components such as display panel 125. The display panel 125 is located inside the protective shell 124 and displays the monitored temperature and leakage data in real time for easy viewing by staff. A buzzer 127 and an antenna 128 are located on both sides of the top of the protective shell 124. When the terminal temperature is detected to be too high or leakage occurs, the buzzer 127 promptly issues an alarm signal, and the antenna 128 transmits the abnormal information to the control terminal for timely handling by staff.

[0025] High-voltage terminals 13 and low-voltage terminals 14 are respectively provided on both sides of the temperature and leakage current monitoring component 12. The high-voltage terminals 13 and low-voltage terminals 14 are electrically connected to the temperature and leakage current monitoring component 12 to ensure that the monitoring component can accurately obtain the temperature and leakage current information of the terminals and realize real-time monitoring. Lifting rings 15 are fixedly connected to all four sides of the top of the top plate 11. The lifting rings 15 facilitate the handling and hoisting of the equipment, and facilitate the installation and maintenance of the equipment.

[0026] Ventilation components 16 are provided around the upper surface of the top plate 11. These components facilitate airflow between the inside and outside of the transformer body 1, accelerating the removal of internal hot air. Each ventilation component 16 includes a fixed sleeve 161, a dustproof net 162, a sealing ring 163, a drive motor 164, fan blades 165, an electric push rod 166, and a sealing cover 167. The fixed sleeve 161 is embedded in the inner wall of the top plate 11 and communicates with the transformer body 1. The fixed sleeve 161 contains the dustproof net 162 and the sealing ring 163. The dustproof net 162, located on the inner wall of the fixed sleeve 161, prevents external dust from entering the transformer body 1, avoiding dust accumulation that could affect the operation of internal components and heat dissipation. The sealing ring 163 enhances the sealing performance of the fixed sleeve 161, preventing moisture and dust from seeping into the equipment. A drive motor 164 is installed inside the sealing ring 163. The output end of the drive motor 164 is connected to a fan blade 165, which faces the inside of the transformer body 1. When the drive motor 164 runs, it drives the fan blade 165 to rotate, introducing fresh air into the transformer body 1 and accelerating the discharge of internal hot air. Electric push rods 166 are provided on the inner walls of both sides of the sealing ring 163. The output end of the electric push rod 166 is connected to a sealing cover 167, which is adapted to the fixed sleeve 161. When the weather is good and ventilation is required, the electric push rod 166 is activated to push the sealing cover 167 upward and open the fixed sleeve 161 for ventilation. When the equipment stops running or in severe weather, the electric push rod 166 drives the sealing cover 167 downward and closes the fixed sleeve 161 to protect the internal components.

[0027] Working principle: When the equipment is running, the electrical components inside the transformer body 1 installed on the upper surface of the heat absorption plate 6 generate heat, which is first fully absorbed by the heat absorption plate 6. The heat absorption plate 6 transfers the absorbed heat to the heat dissipation plate 5 attached below. The heat dissipation plate 5 conducts the heat to the heat conduction pad 2 at the bottom of the inner wall of the transformer body 1 through the through heat conduction column 4. The bottom heat dissipation hole 3 on the heat conduction pad 2 is connected to the bottom end of the transformer body 1, which can directly conduct some of the heat to the outside of the equipment, thus achieving initial heat dissipation.

[0028] At the same time, the heat sink 5 transfers heat to the heat sink 10 that is fixedly connected to it. The heat sink 10 increases the heat dissipation area and accelerates the dissipation of heat into the air. At this time, the fan 95 of the heat dissipation component 9 is activated. The fan 95 blows air towards the heat sink 10, which accelerates the air flow on the surface of the heat sink 10 and quickly removes the heat on the heat sink 10, preventing heat from accumulating on the surface of the heat sink 10 and further improving the heat dissipation efficiency.

[0029] When the weather is good and ventilation is suitable, the electric push rod 166 of the ventilation component 16 is activated. The electric push rod 166 pushes the sealing cover 167 upward, opening the fixing sleeve 161. Then, the drive motor 164 is activated, driving the fan blades 165 to rotate, introducing fresh air into the transformer body 1. The fresh air forms an airflow inside the equipment, driving the internal hot airflow to be discharged through the bottom heat dissipation hole 3, forming an internal and external air circulation, further improving the internal heat dissipation permeability and completely solving the internal heat accumulation problem. The dustproof net 162 inside the fixing sleeve 161 can prevent external dust from entering the equipment with the air, while the sealing ring 163 plays a sealing role, preventing moisture and dust from seeping in and protecting the internal electrical components.

[0030] During equipment operation, the temperature and leakage current monitoring component 12 obtains power from the transformer body 1 through the power supply connector 123, and monitors the temperature and leakage current of the high-voltage terminal 13 and the low-voltage terminal 14 in real time. The monitoring data is displayed on the display panel 125 in real time, which is convenient for staff to check at any time. When the terminal temperature exceeds the preset threshold or leakage current occurs, the buzzer 127 immediately issues an alarm signal, and the antenna 128 transmits the abnormal information to the control terminal, reminding staff to check and deal with it in time, so as to avoid electric shock, short circuit and other safety accidents and improve the safety of equipment operation.

[0031] When the equipment stops operating or encounters severe weather, the electric push rod 166 is activated, which moves the sealing cover 167 downward and closes the fixing sleeve 161, protecting the ventilation component 16 and the internal components of the equipment, preventing dust and moisture from entering, and extending the service life of the equipment; the lifting ring 15 facilitates the handling and hoisting of the equipment, while the mounting bracket 7 and positioning hole 8 facilitate the installation and fixing of the equipment, ensuring that the equipment is installed securely.

[0032] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0033] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A grounding transformer and its body structure with high heat dissipation performance, characterized in that, The transformer body (1) includes a heat-conducting pad (2) at the bottom of its inner wall. The surface of the heat-conducting pad (2) has multiple sets of bottom heat dissipation holes (3), which are connected to the bottom of the transformer body (1). Heat-conducting columns (4) are fixedly connected to the upper surface of the heat-conducting pad (2) around its perimeter. A heat dissipation plate (5) is fixedly connected to the top of each heat-conducting column (4). A heat-absorbing plate (6) is attached to the upper surface of the heat dissipation plate (5). Mounting brackets (7) are fixedly installed on both sides of the upper and lower ends of the transformer body (1). Positioning holes (8) are provided at both ends of each mounting bracket (7). A heat dissipation assembly (9) is fixedly installed on the bottom outer side of the transformer body (1). A heat dissipation fin (10) is provided above the heat dissipation assembly (9). A top plate (11) is fixedly connected to the mounting bracket (7) located at the top of the transformer body (1). A temperature and leakage current monitoring assembly (12) is provided at the center of the upper surface of the top plate (11). A high voltage terminal (13) and a low voltage terminal (14) are respectively provided on both sides of the temperature and leakage current monitoring assembly (12). A lifting ring (15) is fixedly connected around the top of the top plate (11). A ventilation assembly (16) is provided around the upper surface of the top plate (11).

2. The grounding transformer and its body structure with high heat dissipation performance according to claim 1, characterized in that, The bottom heat dissipation holes (3) are evenly distributed on the heat-conducting pad (2), and the heat-conducting pad (2) is tightly attached to the bottom of the inner wall of the transformer body (1).

3. The grounding transformer and its body structure with high heat dissipation performance according to claim 1, characterized in that, The heat absorption plate (6) is disposed inside the transformer body (1), and the upper surface of the heat absorption plate (6) is used to install electrical components inside the transformer body (1).

4. The grounding transformer and its body structure with high heat dissipation performance according to claim 1, characterized in that, The heat dissipation assembly (9) includes a horizontal plate (91), a support plate (92), mounting holes (93), a mounting bracket (94), and a blower (95). The horizontal plate (91) is fixedly connected to the bottom outer side of the transformer body (1). Support plates (92) are fixedly connected to the bottom of both ends of the horizontal plate (91). Mounting holes (93) are provided on the horizontal plate (91). Mounting brackets (94) are provided in the mounting holes (93). A blower (95) is installed on the mounting brackets (94). The blower (95) is positioned facing the heat dissipation fins (10).

5. The grounding transformer and its body structure with high heat dissipation performance according to claim 1, characterized in that, The heat dissipation fins (10) are evenly distributed on the outer wall of the transformer body (1), and the heat dissipation fins (10) pass through the transformer body (1) and are fixedly connected to the heat dissipation plate (5).

6. The grounding transformer with high heat dissipation performance and its body structure according to claim 1, characterized in that, The temperature and leakage current monitoring component (12) includes a positioning base (121), a card holder (122), a power supply connector (123), a protective shell (124), a display panel (125), a card block (126), a buzzer (127), and an antenna (128). The positioning base (121) is fixedly connected to the top plate (11). The card holder (122) is fixedly connected to the positioning base (121). The power supply connector (123) is provided on the card holder (122). The protective shell (124) is snapped onto the card holder (122). The display panel (125) is provided inside the protective shell (124). The card block (126) is provided on the outer wall of the protective shell (124). The buzzer (127) and the antenna (128) are provided on both sides of the top of the protective shell (124).

7. The grounding transformer and its body structure with high heat dissipation performance according to claims 1 and 6, characterized in that, The high-voltage terminal (13) and the low-voltage terminal (14) are electrically connected to the temperature and leakage current monitoring component (12), and the power supply connector (123) is electrically connected to the transformer body (1).

8. The grounding transformer and its body structure with high heat dissipation performance according to claim 1, characterized in that, The ventilation assembly (16) includes a fixed sleeve (161), a dustproof net (162), a sealing ring (163), a drive motor (164), a fan blade (165), an electric push rod (166), and a sealing cover (167). The fixed sleeve (161) is embedded in the inner wall of the top plate (11) and communicates with the transformer body (1). The fixed sleeve (161) is provided with a dustproof net (162) and a sealing ring (163). The sealing ring (163) is installed with a drive motor (164). The output end of the drive motor (164) is connected to the fan blade (165). The inner walls on both sides of the sealing ring (163) are provided with electric push rods (166). The output end of the electric push rods (166) is connected to the sealing cover (167).

9. The grounding transformer with high heat dissipation performance and its body structure according to claim 8, characterized in that, The fan blade (165) is positioned facing the inside of the transformer body (1), the sealing cover (167) is adapted to the fixing sleeve (161), and the dustproof net (162) is disposed on the inner wall of the fixing sleeve (161).

Images