Dry-type transformer with high-temperature protection function

Abstract

The invention relates to the technical field of laser welding, in particular to a dry-type transformer with a high-temperature protection function, which comprises a transformer body, a heat dissipation device, a driving assembly, a piston, a transmission assembly, a rotating plate, a mixing assembly, spoilers and vortex blades, a heat dissipation cavity is formed in the bottom end of the transformer body, a heat dissipation device is installed in the heat dissipation cavity, and circulation channels communicating with the heat dissipation cavity are symmetrically formed in the two sides of the transformer body; the driving assembly is located in the circulation section, a piston is arranged above the driving assembly, and when the transformer body dissipates heat, the motor drives the piston to reciprocate in the circulation section through the driving assembly; the transmission assembly is located in the movable cavity, the rotating plate is located at the joint of the air outlet section and the circulation section, and a mixing assembly is arranged above the rotating plate; the spoiler is rotationally connected with the transformer body, when the rotating plate rotates, the rotating plate drives the spoiler to swing up and down through the mixing assembly, circulating heat dissipation of the transformer is achieved through reciprocating motion, and temperature uniformity in the transformer is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a dry-type transformer with a high-temperature protection function. Background Art

[0002] Dry-type transformers are important equipment in power supply systems. Their main function is to step up and down the voltage within the power supply line and to scientifically allocate power resources on the working surface. Dry-type transformers are mainly composed of an iron core, windings, a heat sink and a transformer housing.

[0003] The iron core and winding are fixedly installed in the transformer housing. A heat dissipation device is installed below the iron core and winding. The heat dissipation device mainly consists of a motor and a fan. As the dry-type transformer runs, the temperature inside the transformer housing gradually increases. When the temperature reaches the set temperature, the motor starts to drive the fan to rotate, and the fan blows out air to dissipate heat and cool the dry-type transformer.

[0004] During the operation of the dry-type transformer, the temperature rises. The cooling gas generated by the rotation of the fan impacts the high-temperature gas in the transformer shell to achieve strong convection cooling. During the strong convection cooling process, since the gas is blown upward from the bottom, the temperature of the cooling gas gradually increases due to heat exchange during the rising process, making the temperature at the top of the transformer shell greater than the temperature at the bottom of the transformer shell, which in turn causes the temperature in the transformer shell to be unevenly distributed in the axial direction, thereby affecting the heat dissipation efficiency of the dry-type transformer.

[0005] To this end, the prior art has proposed a high heat dissipation dry-type transformer, which installs a cooling device at the air inlet, uses the cooling device to water-cool the air to achieve heat exchange, then separates the air into gas and liquid, and then uses the cooled wind to cool the transformer, thereby greatly improving the cooling effect of the transformer. However, the problem of poor heat dissipation caused by uneven temperature distribution in the transformer has not been solved.

[0006] In view of this, we propose a dry-type transformer with high temperature protection function. Summary of the invention

[0007] The object of the present invention is to provide a dry-type transformer with high temperature protection function to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: A dry-type transformer with high temperature protection function, comprising a transformer body, a heat sink, a drive assembly, a piston, a transmission assembly, a rotating plate, a mixing assembly spoiler and a turbine blade; The transformer body is provided with an iron core and a winding fixedly mounted therein, a heat dissipation cavity is provided at the bottom of the transformer body, a heat dissipation device is installed in the heat dissipation cavity, circulation channels connected to the heat dissipation cavity are symmetrically provided on both sides of the transformer body, the circulation channels are divided into an air inlet section, a flow section and an air outlet section, an air suction hole is provided on the flow section, an active cavity is provided on the flow section, and is connected to the air outlet section; The heat dissipation device includes a motor and a fan. The motor is fixedly installed at the bottom of the transformer body. The motor is connected to the fan. When the temperature inside the transformer body reaches the set warning temperature, the motor drives the fan to rotate and blow out cooling gas to counteract the high-temperature gas in the transformer body to reduce the temperature and dissipate heat. The driven component is located in the circulation section, and a piston is provided above the driving component. When the transformer body dissipates heat, the motor drives the piston to reciprocate in the circulation section through the driving component. The reciprocating motion of the piston draws the gas at the top of the transformer body from the air inlet section into the circulation section; then it is discharged into the bottom of the transformer body through the air outlet section, and then under the action of the fan, it rises again into the top of the transformer body, forming a circulation flow, thereby improving the heat dissipation efficiency; The transmission assembly is located in the active cavity, and the rotating plate is located at the connection between the air outlet section and the flow section. When the piston moves upward, the piston drives the rotating plate to open the air outlet section through the transmission assembly. When the piston moves upward, the gas is discharged. At this time, the rotating plate opens the air outlet section and closes the air inlet section so that the air flow can only flow out along the air outlet section; when the piston moves downward, the piston drives the rotating plate to close the air outlet section through the transmission assembly. When the piston moves downward, air is extracted. At this time, the rotating plate closes the air outlet section and opens the air inlet section so that the air flow can only enter from the inlet section, thereby avoiding the air flow at the bottom end of the transformer body being drawn in when exhausting air; A mixing component is provided above the rotating plate; the spoiler is rotatably connected to the transformer body. When the rotating plate rotates, the rotating plate drives the spoiler to swing up and down through the mixing component. The spoiler swings up and down to disturb the airflow, accelerate the mixing of the low-temperature airflow and the high-temperature airflow, realize the temperature transfer, and then reduce the temperature inside the transformer body.

[0009] Preferably, the driving assembly includes a driving wheel, a transmission wheel, a transmission shaft, a crank and a rocker; the driving wheel is connected to the motor, and the driving wheel is meshed with the transmission wheel. When the heat dissipation device is started, the driving wheel runs synchronously with the heat dissipation device; the transmission wheel is located in the heat dissipation chamber, and the transmission wheel is fixedly connected to one end of the transmission shaft; the other end of the transmission shaft extends into the circulation channel and is connected to the crank; the crank is rotatably connected to the rocker; the rocker is rotatably connected to the piston, and the crank, rocker and piston form a crank slider mechanism, and the crank drives the piston to reciprocate through the rocker under the action of the transmission shaft.

[0010] Preferably, annular inclined grooves are provided at both ends of the piston, and the annular grooves are used to drive the transmission assembly and then drive the rotating plate to rotate, so that the rotating plate rotates and then opens and closes the gas outlet section to achieve the circulation of gas.

[0011] Preferably, the transmission assembly includes a circulation mechanism, an auxiliary rod, a driving rack, a reset spring and a rotating wheel; an auxiliary rod cooperating with the transmission groove is provided above the circulation mechanism, and the auxiliary rod realizes the change of movement direction, converting the vertical sliding into horizontal movement; the driving rack and the auxiliary rod are arranged vertically, and the driving rack is connected to the inner wall of the active cavity through a reset spring, and the reset spring is used to realize the reset of the driving rack, and the rotating wheel is fixedly connected to the rotating plate and meshes with the driving rack. The rotating wheel rotates under the action of the driving rack, thereby driving the rotating plate to rotate to realize the opening and closing of the air outlet section.

[0012] The circulation mechanism includes a driving rod, a transmission rod and a reset rod; the driving rod is slidably installed in the active cavity; one end of the driving rod extends into the circulation section, and both ends of the driving rod are provided with inclined grooves that cooperate with the piston, and the inclined grooves cooperate with the annular inclined grooves provided on the piston, and the driving rod slides into the active cavity under the extrusion of the piston; the transmission rod is located in the active cavity, and both ends are provided with inclined grooves, and the transmission rod contacts the driving rod through the inclined grooves, and the transmission rod and the driving rod are arranged vertically to achieve the change of movement direction; one end of the reset rod is provided with a transmission groove that cooperates with the transmission rod, and the other end of the reset rod is provided with an inclined groove that cooperates with the piston, the reset rod, the transmission rod and the driving rod form a U-shaped structure, and the reset rod will extend into the circulation section under the action of the driving rod, and then contact the annular inclined groove on the piston, be squeezed into the active cavity, and push the driving rod into the circulation section through the transmission rod.

[0013] Preferably, the side of the rotating plate close to the air outlet section is a concave arc surface structure, which guides the airflow, guiding the airflow into the air outlet section and flowing out quickly. At the same time, the concave arc surface structure reduces the resistance encountered by the gas during the turning process, ensures the flow speed of the gas, improves the flow efficiency, and ensures the stability of the circulation.

[0014] Preferably, the mixing assembly includes a fixed wheel, a pull rod, a double-sided rack, a rotating wheel, a driven rack and a push rod; the fixed wheel is located in the movable cavity and is fixedly connected to the rotating plate, and the fixed wheel rotates synchronously with the rotating plate; one side of the double-sided rack is meshed with the fixed wheel, and the other side of the double-sided rack is meshed with the rotating wheel; a pull rod is installed on the double-sided rack, and the pull rod is rotatably connected to the spoiler, and the double-sided rack slides horizontally under the action of the fixed wheel, thereby driving the pull rod connected thereto to move synchronously, thereby The pull rod pulls the spoiler to rotate, disturbs the gas, and accelerates the mixing of the cooling gas and the high-temperature gas; the rotating wheel is rotatably connected to the movable cavity, and the rotating wheel is meshed with the driven rack. The rotating wheel plays a transmission role, transmitting the sliding of the double-sided rack to the driven rack, so that the double-sided rack and the driven rack are displaced in the opposite direction. A push rod is connected to the driven rack, and the push rod is rotatably connected to the spoiler. The push rod moves synchronously with the driven rack, thereby driving the spoiler to swing and enhancing the heat dissipation effect.

[0015] Preferably, the push rods and pull rods are arranged alternately and perpendicular to each other. The push rods and pull rods are arranged vertically, so that the spoilers connected to the push rods and pull rods move in opposite directions, thereby driving the gases to impact each other, enhancing the fluidity of the gases, and further enhancing the heat exchange efficiency of the gases and improving the heat dissipation efficiency.

[0016] Preferably, the spoiler includes a fin and a connecting rod; the fin is symmetrically installed at both ends of the connecting rod, the front end of the fin is an arc structure, the connecting rod passes through the movable cavity, and the connecting rod is rotatably connected to the push rod and the connecting rod respectively. The arc structure at the front end of the fin accelerates the disturbance effect on the airflow, accelerates the mixing of the cooling gas and the top high-temperature gas, and then accelerates the heat exchange between the two, ensuring the rapid cooling of the high-temperature gas.

[0017] Preferably, there are two turbine blades, which are respectively located at the air inlet section and the air outlet section. The two turbine blades rotate in opposite directions. The turbine blades rotate under the action of the airflow, thereby driving the airflow to blow out in a spiral shape, thereby enhancing the flow speed of the gas. At the same time, the spiral flow accelerates the mixing with the cooling gas blown out by the fan, thereby accelerating the reduction of the gas temperature.

[0018] Compared with the prior art, the present invention has the following beneficial effects: A dry-type transformer with high temperature protection function. The equipment enables the transformer to circulate and dissipate heat through the cooperation of a transmission component and a mixing component, thereby allowing gas to circulate inside the transformer, so that the temperature inside the transformer is evenly distributed, thereby ensuring the heat dissipation efficiency.

[0019] A dry-type transformer with high-temperature protection function accelerates the flow of gas on the top of the transformer through the mutual cooperation of a driving component and a transmission component, thereby enabling the cooling gas to rise and circulate quickly, accelerating the flow speed of the cooling gas, and at the same time, enhancing the cooling gas content and improving the heat dissipation efficiency.

[0020] A dry-type transformer with high-temperature protection function realizes the mixing efficiency of cooling gas and high-temperature gas inside the transformer through a mixing component, ensures efficient gas heat exchange, and thus improves heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of a half-section in horizontal direction of the whole invention; Figure 2 It is a vertical half-section schematic diagram of the whole invention; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 It is a schematic diagram of a driving assembly of the present invention; Figure 5 It is a schematic diagram of the transmission assembly of the present invention; Figure 6 It is a schematic diagram of the working state of the transmission component of the present invention; Figure 7 is a schematic diagram of a mixing assembly of the present invention; Figure 8 It is a schematic diagram of the spoiler structure of the present invention.

[0022] In the figure: 1. Transformer body; 11. Heat dissipation cavity; 12. Circulation channel; 121. Air inlet section; 122. Flow section; 123. Air outlet section; 13. Active cavity; 2. heat dissipation device; 21. motor; 22. fan; 3. Driving assembly; 31. Driving wheel; 32. Transmission wheel; 33. Transmission shaft; 34. Crank; 35. Rocker; 4. Piston; 5. Transmission assembly; 51. Circulation mechanism; 511. Driving rod; 512. Transmission rod; 513. Reset rod; 52. Auxiliary rod; 53. Driving rack; 54. Reset spring; 55. Rotating wheel; 6. Transfer to another board; 7. Mixing assembly; 71. Fixed wheel; 72. Pull rod; 73. Double-sided rack; 74. Intermediate wheel; 75. Driven rack; 76. Push rod; 8. spoiler; 81. fin; 811. arc structure; 82. connecting rod; 9. Turbine blades. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] A technical solution provided by the present invention: like Figures 1 to 8 As shown, a dry-type transformer with high temperature protection function includes a transformer body, a heat dissipation device, a drive assembly, a piston, a transmission assembly, a rotating plate, a mixing assembly, a spoiler and a turbine blade; The transformer body 1 is fixedly provided with an iron core and a winding. When the transformer body 1 is in operation, a large amount of heat is generated when the winding is passed through an electric current, thereby causing the temperature in the transformer body 1 to rise, leading to a short circuit or a fire. A heat dissipation cavity 11 is provided at the bottom of the transformer body 1, and a heat dissipation device 2 is installed in the heat dissipation cavity 11. Circulation channels 12 connected to the heat dissipation cavity 11 are symmetrically provided on both sides of the transformer body 1. The circulation channels 12 are divided into an air inlet section 121, a circulation section 122 and an air outlet section 123. An air suction hole is provided on the circulation section 122, and the air suction hole is used to inhale external air. An active cavity 13 is provided on the circulation section 122, and is located in communication with the air outlet section 123. The heat dissipation device 2 includes a motor 21 and a fan 22. The motor 21 is fixedly mounted at the bottom of the transformer body 1. The motor 21 is connected to the fan 22. When the temperature in the transformer body 1 reaches the set warning temperature, the motor 21 drives the fan 22 to rotate and blow out cooling gas to contact the windings and high-temperature gas in the transformer body 1 to generate heat transfer, thereby achieving cooling and heat dissipation. The driven component 3 is located in the circulation section 122, and a piston 4 is provided above the driving component 3. When the transformer body 1 dissipates heat, the motor 21 drives the piston 4 to reciprocate in the circulation section 122 through the driving component 3. The reciprocating motion of the piston 4 draws the gas at the top of the transformer body 1 from the air inlet section 121 into the circulation section 122; then the gas is discharged into the bottom of the transformer body 1 through the air outlet section 123, and then rises again into the top of the transformer body 1 under the action of the fan 22, forming a circulation circulation, thereby improving the heat dissipation efficiency; The transmission assembly 5 is located in the active cavity 13, and the rotating plate 6 is located at the connection between the air outlet section 123 and the flow section 122. When the piston 4 moves upward, the piston 4 drives the rotating plate 6 to open the air outlet section 123 through the transmission assembly 5. When the piston 4 moves upward, the gas is discharged. At this time, the rotating plate 6 opens the air outlet section 123 and closes the air inlet section 121 so that the air flow can only flow out along the air outlet section 123; when the piston 4 moves downward, the piston 4 drives the rotating plate 6 to close the air outlet section 123 through the transmission assembly 5. When the piston 4 moves downward, air is exhausted. At this time, the rotating plate 6 closes the air outlet section 123 and opens the air inlet section 121 so that the air flow can only enter from the inlet section, thereby avoiding the air flow at the bottom end of the transformer body 1 being drawn in when exhausting air; A mixing assembly 7 is provided above the rotating plate 6; the spoiler 8 is rotatably connected to the transformer body 1. When the rotating plate 6 rotates, the rotating plate 6 drives the spoiler 8 to swing up and down through the mixing assembly 7. The spoiler 8 swings up and down to disturb the airflow, accelerate the mixing of the low-temperature airflow and the high-temperature airflow, realize the temperature transfer, and then reduce the temperature in the transformer body 1. The spoiler 8 includes fins 81 and connecting rods 82; the fins 81 are symmetrically installed at both ends of the connecting rod 82, and the front end of the fin 81 is an arc structure 811. The connecting rod 82 passes through the active cavity 13. The connecting rod 82 is rotatably connected to the push rod 76 and the connecting rod 82 respectively. The arc structure 811 at the front end of the fin 81 accelerates the disturbance effect on the airflow, accelerates the mixing of the cooling gas and the top high-temperature gas, and then accelerates the heat exchange between the two, ensuring the rapid cooling of the high-temperature gas.

[0025] The driving wheel 31 is connected to the motor 21, and the driving wheel 31 is meshed with the transmission wheel 32. When the heat dissipation device 2 is started, the driving wheel 31 follows the heat dissipation device 2 to run synchronously; the transmission wheel 32 is located in the heat dissipation cavity 11, and the transmission wheel 32 is fixedly connected to one end of the transmission shaft 33; the other end of the transmission shaft 33 extends into the circulation channel 12 and is connected to the crank 34. A bearing is installed between the rising transmission shaft 33 and the inner wall of the circulation channel 12 to ensure the stability of the rotation of the shaft; the crank 34 is rotatably connected to the rocker 35, and the crank 34 and the rocker 35 are rotatably connected to each other through a hinge; the rocker 35 is rotatably connected to the piston 4, and the crank 34, the rocker 35 and the piston 4 form a crank 34 slider mechanism. Under the action of the transmission shaft 33, the crank 34 drives the piston 4 to reciprocate through the rocker 35; The motor 21 drives the fan 22 to rotate to generate cooling gas to dissipate the heat of the transformer body 1. The motor 21 is synchronized to drive the driving wheel 31 to rotate, the driving wheel 31 drives the transmission wheel 32 to rotate, the transmission wheel 32 drives the transmission shaft 33 fixedly connected thereto to rotate synchronously, the transmission shaft 33 drives the crank 34 to rotate, the crank 34 drives the rocker 35, and the rocker 35 drives the piston 4 to reciprocate in the circulation section 122. When the piston 4 moves downward, the gas at the top of the transformer is drawn from the air intake section 121 into the circulation section 122. At this time, the high-temperature gas at the top of the transformer is missing, and the cooling gas located below quickly circulates and rises to make up for the missing part, and at the same time exchanges heat with the winding, thereby reducing the transformer cost. The temperature in the transformer body 1 is adjusted. When the piston 4 draws air downward, the piston 4 simultaneously draws external air from the air hole into the circulation section 122, mixes with the high-temperature gas in the circulation section 122, and cools the high-temperature gas. At this time, the temperature of the high-temperature gas is lower than the gas temperature at the top of the transformer body 1. When the piston 4 moves upward, the high-temperature gas mixed with the external air and cooled is discharged from the gas outlet section 123. The high-temperature gas after cooling is mixed with the cooling gas and moves upward to cool the transformer body 1, and a cycle of heat dissipation is performed. After a cycle of heat dissipation, the temperature of the high-temperature gas at the top of the transformer body 1 is lower than the temperature of the high-temperature gas before the cycle, and the high-temperature gas continues to circulate until the temperature drops to a normal temperature range; There are two turbine blades 9, which are respectively located at the air inlet section 121 and the air outlet section 123. The two turbine blades 9 rotate in opposite directions. The turbine blades 9 rotate under the action of the airflow, thereby driving the airflow to blow out in a spiral shape, thereby enhancing the flow speed of the gas. At the same time, the spiral flow accelerates the mixing with the cooling gas blown out by the fan 22, thereby accelerating the reduction of the gas temperature.

[0026] The circulation mechanism 51 includes a driving rod 511, a transmission rod 512 and a reset rod 513; the driving rod 511 is slidably installed in the active chamber 13; one end of the driving rod 511 extends into the circulation section 122, and both ends of the driving rod 511 are provided with inclined grooves that cooperate with the piston 4, and both ends of the piston 4 are provided with annular inclined grooves, and the annular grooves are used to drive the transmission component 5 and then drive the rotating plate 6 to rotate, so that the rotating plate 6 rotates and then opens and closes the gas outlet section 123 to realize the circulation of gas, and the inclined groove cooperates with the annular inclined groove provided on the piston 4, and the driving rod 511 slides into the active chamber 13 under the extrusion of the piston 4; the transmission rod 512 is located in the active chamber 13, and oblique grooves are provided at both ends, the transmission rod 512 contacts the driving rod 511 through the oblique grooves, and the transmission rod 512 and the driving rod 511 are arranged vertically to realize the change of the movement direction; one end of the reset rod 513 is provided with a transmission groove that matches the transmission rod 512, and the other end of the reset rod 513 is provided with an oblique groove that matches the piston 4, and the reset rod 513, the transmission rod 512 and the driving rod 511 form a U-shaped structure. Under the action of the driving rod 511, the reset rod 513 will extend into the circulation section 122, and then contact the annular oblique groove on the piston 4, be squeezed into the active chamber 13, and push the driving rod 511 into the circulation section 122 through the transmission rod 512; An auxiliary rod 52 cooperating with the transmission groove is provided above the circulation mechanism 51, and the auxiliary rod 52 realizes the change of the movement direction, and converts the vertical sliding into horizontal movement; the driving rack 53 is arranged vertically with the auxiliary rod 52, and the driving rack 53 is connected to the inner wall of the active chamber 13 through a reset spring 54, and the reset spring 54 is used to realize the reset of the driving rack 53, and the rotating wheel 55 is fixedly connected with the rotating plate 6 and meshes with the driving rack 53. The rotating wheel 55 rotates under the action of the driving rack 53, and then drives the rotating plate 6 to rotate to realize the opening and closing of the air outlet section 123. The rotating plate 6 is close to the air outlet section 123. The concave arc surface structure guides the airflow, guides the airflow into the air outlet section 123 and flows out quickly. At the same time, the concave arc surface structure reduces the resistance of the gas in the turning process, ensures the flow speed of the gas, improves the flow efficiency, and ensures the stability of the circulation; When the piston 4 moves downward, the piston 4 squeezes the driving rod 511, the driving rod 511 slides into the active chamber 13, the driving rod 511 pushes the transmission rod 512, the transmission rod 512 squeezes the reset rod 513 to extend, one end of the reset rod 513 extends into the flow section 122, and at the same time, the reset rod 513 pushes the auxiliary rod 52 to move upward, the auxiliary rod 52 squeezes the driving rack 53 to slide horizontally, the driving rack 53 squeezes the reset spring 54, and at the same time, the driving rack 53 meshes with the rotating wheel 55, driving the rotating wheel 55 to rotate, and the rotating wheel 55 drives the rotating plate 6 to rotate 90° downward to close the air outlet section 123; When the piston 4 moves upward, the piston 4 squeezes the reset rod 513, driving the reset rod 513 to slide into the active chamber 13, the reset rod 513 pushes the transmission rod 512, the transmission rod 512 squeezes the driving rod 511 to extend, and one end of the driving rod 511 extends into the circulation section 122. At the same time, the reset rod 513 no longer squeezes the auxiliary rod 52, the auxiliary rod 52 is reset under the action of gravity, the driving rack 53 is no longer squeezed by the auxiliary rod 52, and is reset under the action of the reset spring 54. The driving rack 53 drives the rotating wheel 55 to reverse, and the rotating wheel 55 drives the rotating plate 6 to rotate 90° upward to reset, thereby opening the air outlet section 123.

[0027] The fixed wheel 71 is located in the active chamber 13 and is fixedly connected to the rotating plate 6, and the fixed wheel 71 rotates synchronously with the rotating plate 6; one side of the double-sided rack 73 is meshed with the fixed wheel 71, and the double-sided rack 73 is positioned and slidably connected to the active chamber 13 through a slide groove, and the other side of the double-sided rack 73 is meshed with the rotating wheel 74; a pull rod 72 is installed on the double-sided rack 73, and the pull rod 72 is rotatably connected to the spoiler 8. The double-sided rack 73 slides horizontally under the action of the fixed wheel 71, thereby driving the pull rod 72 connected thereto to move synchronously, so that the pull rod 72 pulls the spoiler 8 to rotate, disturbs the gas, and accelerates the mixing of the cooling gas and the high-temperature gas; the rotating wheel 74 is rotatably connected to the active chamber 13, and the rotating wheel 74 is meshed with the driven rack 75, and the rotating wheel 74 plays a transmission role , the sliding of the double-sided rack 73 is transmitted to the driven rack 75, so that the double-sided rack 73 and the driven rack 75 are displaced in the opposite direction. The driven rack 75 is connected with a push rod 76, and the push rod 76 is rotatably connected to the spoiler 8. The push rod 76 moves synchronously with the driven rack 75, thereby driving the spoiler 8 to swing and enhance the heat dissipation effect. The push rod 76 and the pull rod 72 are alternately staggered and arranged, and are perpendicular to each other. The push rod 76 and the pull rod 72 are arranged vertically, so that the spoiler 8 connected to the push rod 76 and the pull rod 72 move in opposite directions, thereby driving the gas to impact each other, enhancing the fluidity of the gas, and then enhancing the heat exchange efficiency of the gas and improving the heat dissipation efficiency. The diameter of the rotating wheel 74 is larger than the diameter of the connecting rod 82 of the spoiler 8, ensuring that the double-sided rack 73 and the driven rack 75 will not contact the connecting rod 82 during the movement.

[0028] When a dry-type transformer with a high temperature protection function of this embodiment is in use, when the temperature of the transformer body 1 reaches the warning temperature, the motor 21 rotates, the motor 21 drives the fan 22 to rotate, the motor 21 synchronously drives the driving wheel 31 to rotate, the driving wheel 31 drives the transmission wheel 32 to rotate, the transmission wheel 32 drives the transmission shaft 33 to rotate synchronously, the transmission shaft 33 drives the crank 34 to move in a circle, the crank 34 drives the rocker 35 to swing, and the rocker 35 drives the piston 4 to reciprocate up and down. When the piston 4 moves downward, the piston 4 squeezes the driving rod 511, and the driving rod 511 slides into the active chamber 13. The driving rod 511 pushes the transmission rod 512, and the transmission rod 512 squeezes the reset rod 513 to extend. At the same time, the reset rod 513 pushes the auxiliary rod 52 to move upward, and the auxiliary rod 52 squeezes the driving rack 53 to slide horizontally, and the driving rack 53 squeezes the reset spring 54. At the same time, the driving rack 53 meshes with the rotating wheel 55, driving the rotating wheel 55 to rotate, and the rotating wheel 55 drives the rotating plate 6 to rotate 90° downward to close the air outlet section 123. The rotation of the rotating plate 6 drives the fixed wheel 71 to rotate synchronously, and the fixed wheel 71 drives the double-sided rack 73 to slide. The double-sided rack 73 drives the pull rod 72 to move synchronously, and the pull rod 72 pulls the spoiler 8 to rotate, and the rotation of the double-sided rack 73 drives the intermediate wheel 74 to rotate, and the intermediate wheel 74 drives the driven rack 75 to slide, and the driven rack 75 drives the push rod 76 to move synchronously, and the push rod 76 drives the spoiler 8 to rotate; When the piston 4 moves upward, the piston 4 squeezes the reset rod 513, driving the reset rod 513 to slide into the active chamber 13, the reset rod 513 pushes the transmission rod 512, the transmission rod 512 squeezes the drive rod 511 to extend, and one end of the drive rod 511 extends into the flow section 122. At the same time, the reset rod 513 no longer squeezes the auxiliary rod 52, the auxiliary rod 52 is reset under the action of gravity, the drive rack 53 is no longer squeezed by the auxiliary rod 52, and is reset under the action of the reset spring 54, and the drive rack 53 drives The rotating wheel 55 reverses, and the rotating wheel 55 drives the rotating plate 6 to rotate 90° upward to reset, opening the air outlet section 123. At the same time, the rotating plate 6 rotates to drive the fixed wheel 71 to reverse, and the fixed wheel 71 drives the double-sided rack 73 to slide in the opposite direction to reset. The double-sided rack 73 drives the spoiler 8 to reverse through the pull rod 72. The double-sided rack 73 reverses and drives the rotating wheel 74 to reverse. The rotating wheel 74 drives the driven rack 75 to slide in the opposite direction to reset. The driven rack 75 pushes the spoiler 8 to reverse through the push rod 76, and one movement cycle ends.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dry-type transformer with high temperature protection function, comprising a transformer body (1) and a heat dissipation device (2), Features: It also includes a driving assembly (3), a piston (4), a transmission assembly (5), a rotating plate (6), a mixing assembly (7) and a spoiler (8); A heat dissipation cavity (11) is provided at the bottom of the transformer body (1), a heat dissipation device (2) is installed in the heat dissipation cavity (11), circulation channels (12) connected to the heat dissipation cavity (11) are symmetrically provided on both sides of the transformer body (1), the circulation channels (12) are divided into an air intake section (121), a circulation section (122) and an air outlet section (123), an air intake hole is provided on the circulation section (122), and an active cavity (13) is provided on the circulation section (122), and is connected to the air outlet section (123); The heat dissipation device (2) comprises a motor (21) and a fan (22); the motor (21) is fixedly mounted on the bottom end of the transformer body (1); and the motor (21) is connected to the fan (22); The driven component (3) is located in the circulation section (122), a piston (4) is provided above the driven component (3), and when the transformer body (1) dissipates heat, the motor (21) drives the piston (4) to reciprocate in the circulation section (122) through the driven component (3); The transmission assembly (5) is located in the active chamber (13); the rotating plate (6) is located at the connection between the gas outlet section (123) and the flow section (122); when the piston (4) moves upward, the piston (4) drives the rotating plate (6) through the transmission assembly (5) to open the gas outlet section (123); when the piston (4) moves downward, the piston (4) drives the rotating plate (6) through the transmission assembly (5) to close the gas outlet section (123); A mixing assembly (7) is provided above the rotating plate (6); the spoiler (8) is rotatably connected to the transformer body (1); when the rotating plate (6) rotates, the rotating plate (6) drives the spoiler (8) to swing up and down through the mixing assembly (7).

2. The dry-type transformer according to claim 1, Features: The driving assembly (3) comprises a driving wheel (31), a transmission wheel (32), a transmission shaft (33), a crank (34) and a rocker (35); The driving wheel (31) is connected to the motor (21), and the driving wheel (31) is meshed with the transmission wheel (32); The transmission wheel (32) is located in the heat dissipation cavity (11), and the transmission wheel (32) is fixedly connected to one end of the transmission shaft (33); The other end of the transmission shaft (33) extends into the circulation channel (12) and is connected to the crank (34); The crank (34) is rotationally connected to the rocker (35); The rocker (35) is rotationally connected to the piston (4).

3. The dry-type transformer according to claim 2, Features: Annular bevel grooves are formed at both ends of the piston (4).

4. The dry-type transformer according to claim 1, Features: The transmission assembly (5) comprises a circulation mechanism (51), an auxiliary rod (52), a driving rack (53), a return spring (54) and a rotating wheel (55); An auxiliary rod (52) cooperating with the transmission groove is provided above the circulation mechanism (51); The driving rack (53) is arranged vertically to the auxiliary rod (52), and the driving rack (53) is connected to the inner wall of the active chamber (13) via a return spring (54); The rotating wheel (55) is fixedly connected to the rotating plate (6) and meshes with the driving rack (53).

5. The dry-type transformer according to claim 4, Features: The circulation mechanism (51) comprises a driving rod (511), a transmission rod (512) and a reset rod (513); The driving rod (511) is slidably mounted in the movable chamber (13); one end of the driving rod (511) extends into the flow section (122), and both ends of the driving rod (511) are provided with inclined grooves that cooperate with the piston (4); The transmission rod (512) is located in the movable cavity (13) and has inclined grooves at both ends, and the transmission rod (512) is in contact with the driving rod (511) through the inclined grooves; A transmission groove cooperating with the transmission rod (512) is formed at one end of the reset rod (513), and an inclined groove cooperating with the piston (4) is formed at the other end of the reset rod (513).

6. The dry-type transformer according to claim 4, Features: The rotating plate (6) has a concave arc surface structure on one side close to the air outlet section (123).

7. The dry-type transformer according to claim 5, Features: The mixing assembly (7) comprises a fixed wheel (71), a pull rod (72), a double-sided rack (73), a rotating wheel (74), a driven rack (75) and a push rod (76); The fixed wheel (71) is located in the movable cavity (13) and is fixedly connected to the rotating plate (6); One side of the double-sided rack (73) is meshed with the fixed wheel (71), and the other side of the double-sided rack (73) is meshed with the rotating wheel (74); a pull rod (72) is mounted on the double-sided rack (73), and the pull rod (72) is rotatably connected to the spoiler (8); The rotating wheel (74) is rotatably connected to the movable chamber (13), the rotating wheel (74) is meshed with a driven rack (75), a push rod (76) is connected to the driven rack (75), and the push rod (76) is rotatably connected to the spoiler (8).

8. The dry-type transformer according to claim 7, Features: The push rods (76) and the pull rods (72) are arranged alternately and staggered, and are perpendicular to each other.

9. The dry-type transformer according to claim 7, Features: The spoiler (8) comprises a fin (81) and a connecting rod (82); the fin (81) is symmetrically mounted at both ends of the connecting rod (82); the front end of the spoiler (8) is an arc-shaped structure (811); the connecting rod (82) passes through the active cavity (13); and the connecting rod (82) is rotatably connected to the push rod (76) and the connecting rod (82) respectively.

10. The dry-type transformer according to claims 1-9, Features: It also includes turbine blades (9), wherein there are two turbine blades (9), the two turbine blades (9) are respectively located at the air inlet section (121) and the air outlet section (123), and the two turbine blades (9) rotate in opposite directions.

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