Heat-resistant ox horn capacitor and use method thereof

Abstract

The invention belongs to the technical field of capacitors, and provides a heat-resistant ox horn capacitor and a use method thereof. An annular plate; a rotating rod; a heat dissipation fan I and a heat dissipation fan II. When a pressure release valve releases pressure, high-pressure gas ejected by the pressure release valve pushes an annular plate to move downwards, after pressure release is slowly completed, the annular plate moves upwards, and the annular plate and a connecting plate drive a guide disc to move up and down, so that a first heat dissipation fan and a second heat dissipation fan rotate forwards and then rotate reversely; when the pressure relief valve rotates forwards, air with low temperature is pumped into the shell to exchange heat with high-temperature gas, so that the capacitor body and the interior of the shell are cooled, and when the pressure relief valve rotates backwards, heat on the shell and the capacitor body is pumped out of the shell to be dissipated, so that when the pressure relief valve is used for pressure relief, the capacitor body is cooled, and the service life of the capacitor body is prolonged. The capacitor body is effectively prevented from being always in a high-temperature state, so that the service life of the capacitor body is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of capacitors, and in particular relates to a heat-resistant horn capacitor and a use method thereof. Background Art

[0002] Horn capacitors are also called horn-type aluminum electrolytic capacitors, substrate-based self-supporting electrolytic capacitors and welding pin-type electrolytic capacitors. They are a type of liquid lead-type aluminum electrolytic capacitor. Horn electrolytic capacitors are used in inverters, high-power equipment welding machines and other fields.

[0003] Since the capacity of the horn capacitor is large and it works in a high voltage environment, the horn capacitor will generate a lot of heat when working, which can easily cause leakage, bulging and even explosion of the horn capacitor, thereby affecting the normal operation of surrounding electrical components; At present, in order to prevent the explosion of the horn capacitor, a pressure relief valve is generally installed on the body or shell of the horn capacitor, and the pressure is relieved by the pressure relief valve so that the inside of the horn capacitor is not in a high-pressure state, thereby preventing the explosion of the horn capacitor, but this cannot discharge the internal heat, the horn capacitor is still in a high-temperature state, and the service life of the horn capacitor is still reduced. Therefore, a heat-resistant horn capacitor and a method for using the same are proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a heat-resistant horn capacitor and a method of using the same, aiming to solve the technical problem that although the prior art can relieve the pressure of the horn capacitor under high pressure, it cannot discharge the internal heat, the horn capacitor is still in a high temperature state, and the service life of the horn capacitor is still reduced.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A heat-resistant ox-horn capacitor comprises a shell with a hollow top, a filter screen installed on the top of the shell, a positioning seat fixed in the shell, a capacitor body installed in the positioning seat, and a plurality of pressure relief valves installed at the bottom of the shell, wherein the ox-horn column on the capacitor body passes through the shell, and the capacitor also comprises: A guide disc, the guide disc is located in the inner cavity of the shell, a plurality of connecting plates are passed through the bottom of the shell, the plurality of connecting plates are fixedly connected to the bottom of the guide disc, the inner cavity of the shell is provided with a step, the guide disc abuts against the step to make the shell in a sealed state; A circular ring plate, one end of the plurality of connecting plates located outside the housing is fixedly connected to the circular ring plate, and the pressure relief port of the pressure relief valve faces the plate surface of the circular ring plate; A rotating rod, a fixing plate is fixed on the inner wall of the shell, the rotating rod is rotatably mounted on the fixing plate, a spiral guide groove is provided on the outer periphery of the rotating rod, a through hole is provided on the guide disc, the rotating rod passes through the through hole, a guide block is provided on the side wall of the through hole, and the guide block is sleeved in the guide groove; The first heat sink fan and the second heat sink fan are respectively fixedly installed on the outer periphery of the rotating rod, and the first heat sink fan and the second heat sink fan are arranged vertically, and the fan blades on the first heat sink fan and the fan blades on the second heat sink fan face the same direction.

[0006] As a preferred embodiment of the above technical solution, a plurality of movable rods are fixed to the bottom of the guide disc, the movable rods penetrate the outer shell, a fixing ring is provided on the periphery of the movable rods, and an elastic member 2 is connected between the fixing ring and the bottom of the inner cavity of the outer shell, and the elastic member 2 is located on the periphery of the movable rods.

[0007] As a preferred embodiment of the above technical solution, both the upper and lower surfaces of the guide disc are conical, and the outer periphery of the guide disc does not contact the inner wall of the shell.

[0008] As a preferred embodiment of the above technical solution, a tightening plate is rotatably mounted on the bottom of the rotating rod, and the tightening plate is fixedly abutted against the top of the capacitor body.

[0009] As a preferred embodiment of the above technical solution, a plurality of heat dissipation components are installed on the side of the capacitor body, and the heat dissipation components include: An arc plate, the arc plate abuts against the side surface of the capacitor body, a plurality of guide rods are arranged on the other side of the arc plate, the guide rods penetrate the housing, an elastic member 1 is connected between the arc plate and the housing, and the elastic member 1 is located outside the guide rods; Wedge block one, the surface of the arc plate is provided with wedge block one, and wedge block two is provided between two adjacent movable rods, and the inclined surface of the wedge block one is against the inclined surface of the wedge block two.

[0010] As a preferred embodiment of the above technical solution, a plurality of conical rods are arranged on the surface of the arc plate, a plurality of heat exhaust holes are opened on the surface of the outer shell, the conical rods pass through the heat exhaust holes, the ends of the conical rods block the heat exhaust holes, and the diameter of one end of the conical rod connected to the arc plate is smaller than the diameter of the end of the conical rod.

[0011] As a preferred embodiment of the above technical solution, the horn column includes a main pin and a secondary pin, the main pin is connected to the capacitor body, a plurality of mounting plates are arranged at the bottom of the shell, a resistor block is arranged on the mounting plate, and a secondary pin is arranged at the bottom of the resistor block.

[0012] As a preferred embodiment of the above technical solution, an adjustment component is installed at the bottom of the housing, and the adjustment component includes: Gear and the first toothed plate. A gear is installed on the inner wall of the housing. The first toothed plate penetrates through the bottom of the housing movably. The first toothed plate meshes with the gear. A second toothed plate is arranged on the connecting plate. The second toothed plate meshes with the gear. The second toothed plate is parallel to the first toothed plate; U-shaped plate. A U-shaped plate is arranged at the bottom end of the first toothed plate. A first loop-shaped frame and a second loop-shaped frame are respectively arranged at both ends of the U-shaped plate. The first loop-shaped frame is sleeved around the main pin. The second loop-shaped frame is sleeved around the resistor block; The U-shaped plate, the first loop-shaped frame and the second loop-shaped frame are all made of conductive materials.

[0013] Heat-resistant horn capacitor and its usage method. The method is applied to the heat-resistant horn capacitor as described above. The method includes the following steps: Step S1: A large amount of heat is generated when the capacitor body is operating, increasing the pressure inside the housing. After reaching a certain level, pressure relief is carried out through the pressure relief valve; Step S2: When the pressure relief valve releases pressure, high-pressure gas is ejected. The high-pressure gas pushes the circular ring plate to move away from the housing. The circular ring plate drives the guiding disc to move downward through the connecting plate, converting the housing from a sealed state to a ventilated state; Step S3: During the downward movement of the guiding disc, the guiding block moves along the guiding groove, causing the rotating rod to rotate, and making the first cooling fan and the second cooling fan rotate. The first cooling fan and the second cooling fan draw external air into the housing to cool the capacitor body; Step S4: The downward movement of the connecting plate causes the gear to rotate, making the first toothed plate move upward. The U-shaped plate drives the first loop-shaped frame and the second loop-shaped frame to move upward. When the second loop-shaped frame moves upward, the path length of the current passing through the resistor block increases, increasing the overall resistance of the capacitor body. With the voltage unchanged, the current passing through the capacitor body is reduced, preventing the temperature of the capacitor body from rising further; Step S5: When the capacitor body expands on the surface during operation, several arc plates move outward, and the tapered rod also moves outward. At this time, a gap is formed between the tapered rod and the heat discharge hole. The air drawn into the housing not only cools the capacitor body but also squeezes and discharges the hot air inside the housing through the gap.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, when the pressure relief valve relieves pressure, the high-pressure gas ejected by the pressure relief valve is utilized to push the circular ring plate downward. After the pressure relief is slowly completed, the circular ring plate moves upward. Through the process of the circular ring plate and the connecting plate driving the guiding disc to move up and down, the first cooling fan and the second cooling fan first rotate forward and then rotate in reverse. When rotating forward, the air with a lower temperature is drawn into the housing to exchange heat with the high-temperature gas, cooling the capacitor body and the interior of the housing. When rotating in reverse, the heat on the housing and the capacitor body is drawn outside the housing for heat dissipation. Thus, when the pressure relief valve relieves pressure, the capacitor body is cooled and dissipated, effectively preventing the capacitor body from always being in a high-temperature state, thereby increasing the service life of the capacitor body; 2. In the present invention, after the first cooling fan and the second cooling fan draw the high-temperature gas in the housing to the outside of the housing, the guiding disc abuts against the step to make the housing in a sealed state. At this time, the interior of the housing is in a negative pressure state. The negative pressure state can reduce the risk of breakdown inside the capacitor body to a certain extent. When the capacitor body works, the internal air pressure will rise due to the increase in temperature. If it is in a negative pressure state initially, then even if the air pressure rises, it is less likely to reach a dangerous high-pressure level, thereby reducing the occurrence probability of safety accidents such as explosion; 3. In the present invention, when the capacitor body may expand and bulge during operation, at this time, the arc plate drives the tapered rod to move outward, and a gap is slowly formed between the tapered rod and the heat discharge hole, and the size of the gap slowly increases. The high-temperature gas in the housing can be discharged from the gap to the outside of the housing, thus achieving the effect of heat dissipation. When the first cooling fan and the second cooling fan rotate, the first cooling fan and the second cooling fan draw the external air into the housing. Since the interior of the housing is slowly in a stable pressure state after the pressure relief valve relieves pressure, at this time, the external air enters the housing, making the housing in a high-pressure state again. Since the external air enters from the top of the housing, the external air squeezes the high-temperature gas inside the housing, causing the high-temperature gas to be discharged from the gap, thereby achieving the purpose of heat dissipation. Cooperating with the first cooling fan and the second cooling fan for heat dissipation, the heat dissipation effect on the capacitor body is improved, thereby reducing the occurrence probability of safety accidents such as explosion; 4. In the present invention, while the guiding disc moves downward, the toothed plate two on the connecting plate drives the gear to rotate, thereby making the toothed plate one move upward. The toothed plate one drives the U-shaped plate to move upward, causing the second return-shaped frame to move upward. After the second return-shaped frame moves upward, the distance between the second return-shaped frame and the secondary pin expands. Since the U-shaped plate connects the main pin and the secondary pin, the path length of the current passing through the resistor block increases, increasing the overall resistance of the capacitor body. Under the condition of constant voltage, the current passing through the capacitor body is reduced, thereby preventing the temperature of the capacitor body from continuing to rise to a certain extent. Cooperating with the cooling and heat dissipation of the capacitor body, the cooling and heat dissipation effect on the capacitor body is further improved, thereby reducing the occurrence probability of safety accidents such as explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the external structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of a partial structure of the present invention; Figure 4 Schematic diagram of the sectional structure of the present invention; Figure 5 Schematic diagram of the separated and partially enlarged structure of the guiding disc and the rotating rod; Figure 6 Schematic diagram of the heat exhaust component structure; Figure 7 Schematic diagram of the conical rod and the discharge hole structure; Figure 8 Schematic diagram of the adjusting component structure; In the figure: 1. Capacitor body; 2. Horn post; 21. Main pin; 22. Sub-pin; 23. Resistance block; 3. Outer shell; 31. Positioning seat; 32. Step; 33. Heat exhaust hole; 4. Pressure relief valve; 5. Guiding disc; 51. Through hole; 52. Guiding block; 6. Rotating rod; 61. Fixed plate; 62. Tightening plate; 63. Guiding groove; 7. Ring plate; 8. Heat exhaust component; 81. Arc plate; 82. Guiding rod; 83. Elastic member I; 84. Conical rod; 85. Wedge block I; 86. Moving rod; 87. Wedge block II; 88. Fixed ring; 89. Elastic member II; 9. Adjusting component; 91. Gear; 92. Rack I; 93. U-shaped plate; 931. First return-shaped frame; 932. Second return-shaped frame; 10. Connecting plate; 101. Rack II; 11. First heat dissipation fan; 12. Second heat dissipation fan; 13. Filter screen; 14. Mounting plate. Detailed implementation manners

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0018] As Figure 1-Figure 5 shown, the heat-resistant horn capacitor includes an outer shell 3 with a hollow top, a filter screen 13 installed on the top of the outer shell 3, a positioning seat 31 fixed inside the outer shell 3, a capacitor body 1 installed inside the positioning seat 31, and a plurality of pressure relief valves 4 installed at the bottom of the outer shell 3. Among them, the horn post 2 on the capacitor body 1 penetrates the outer shell 3. The capacitor further includes: The guide disc 5 is located in the inner cavity of the shell 3. A plurality of connecting plates 10 are passed through the bottom of the shell 3. The plurality of connecting plates 10 are fixedly connected to the bottom of the guide disc 5. A step 32 is provided in the inner cavity of the shell 3. The guide disc 5 abuts against the step 32 to make the shell 3 in a sealed state. The annular plate 7, one end of a plurality of connecting plates 10 located outside the housing 3 is fixedly connected to the annular plate 7, and the pressure relief port of the pressure relief valve 4 faces the plate surface of the annular plate 7; The rotating rod 6 is provided with a fixing plate 61 fixed on the inner wall of the housing 3, the rotating rod 6 is rotatably mounted on the fixing plate 61, a spiral guide groove 63 is provided on the outer periphery of the rotating rod 6, a through hole 51 is provided on the guide disc 5, the rotating rod 6 passes through the through hole 51, a guide block 52 is provided on the side wall of the through hole 51, and the guide block 52 is sleeved in the guide groove 63; The cooling fan 11 and the cooling fan 2 12 are fixedly installed on the outer periphery of the rotating rod 6, and the cooling fan 11 and the cooling fan 2 12 are arranged vertically, and the fan blades on the cooling fan 11 and the fan blades on the cooling fan 2 12 face the same direction.

[0019] Furthermore, a plurality of movable rods 86 are fixed to the bottom of the guide disc 5 , and the movable rods 86 penetrate the outer shell 3 . A fixing ring 88 is provided on the periphery of the movable rods 86 . An elastic member 89 is connected between the fixing ring 88 and the bottom of the inner cavity of the outer shell 3 . The elastic member 89 is located on the periphery of the movable rods 86 .

[0020] Furthermore, both the upper and lower surfaces of the guide disc 5 are conical, and the outer periphery of the guide disc 5 does not contact the inner wall of the housing 3 .

[0021] In one case of this embodiment, the elastic member 89 can be a spring or other elastically expandable member; the guide disc 5 is conical in shape both above and below to facilitate gas to enter the housing 3 or be discharged from the housing 3.

[0022] In actual application of this embodiment, when the capacitor body 1 generates heat while working continuously, the inside of the shell 3 is in a high-pressure state, and the pressure relief valve 4 automatically opens to relieve the pressure in the shell 3 to prevent the capacitor body 1 from exploding. The pressure relief valve 4 ejects high-pressure gas, and the high-pressure gas contacts the annular plate 7, causing the annular plate 7 to move downward. The annular plate 7 drives the guide disc 5 and a plurality of movable rods 86 to move downward through the connecting plate 10, and a plurality of elastic members 89 are compressed. Since the outer periphery of the guide disc 5 does not contact the inner wall of the shell 3, there is a gap between the guide disc 5 and the step 32 and the inner wall of the shell 3 after the guide disc 5 moves downward. During the downward movement of the guide disc 5, the guide block 52 moves along the guide groove 63. Since the position of the guide block 52 is fixed, the rotating rod 6 rotates, causing the heat dissipation fan 1 11 and the heat dissipation fan 2 12 to rotate. The heat dissipation fan 1 11 and the heat dissipation fan 2 12 draw external air into the shell 3, thereby exchanging heat with the high-temperature gas in the shell 3, thereby playing a role in cooling the temperature in the shell 3 and the temperature of the capacitor body 1. During the process of pressure relief valve 4 completing pressure relief, the pressure of the ejected gas is slowly reduced. At this time, due to the rebound ability of elastic member 2 89, several movable rods 86 drive guide disc 5 to move upward, and connecting plate 10 drives annular plate 7 to move upward. During the process of guide disc 5 moving upward, rotating rod 6 reverses, so that heat dissipation fan 1 11 and heat dissipation fan 2 12 reverse, and heat dissipation fan 1 11 and heat dissipation fan 2 12 draw high-temperature gas in housing 3 to the outside of housing 3, thereby achieving heat dissipation effect. Through the process of the guide disc 5 moving up and down, the heat dissipation fan 11 and the heat dissipation fan 2 12 are first rotated forwardly and then reversely. During the forward rotation, the air with a lower temperature is drawn into the housing 3 to exchange heat with the high-temperature gas, so as to cool down the capacitor body 1 and the inside of the housing 3. During the reverse rotation, the heat on the housing 3 and the capacitor body 1 is drawn to the outside of the housing 3 for heat dissipation. Therefore, when the pressure relief valve 4 is relieving pressure, the capacitor body 1 is cooled and heat dissipated, which effectively prevents the capacitor body 1 from being in a high-temperature state all the time, thereby increasing the service life of the capacitor body 1. After the heat dissipation fan 11 and the heat dissipation fan 2 12 draw the high-temperature gas in the outer shell 3 to the outside of the outer shell 3, the guide disc 5 and the step 32 abut against each other to make the outer shell 3 in a sealed state. At this time, the inner shell 3 is in a negative pressure state. The negative pressure state can reduce the risk of breakdown inside the capacitor body 1 to a certain extent. When the capacitor body 1 is working, the internal air pressure will rise due to the increase in temperature. If it is in a negative pressure state initially, then even if the air pressure rises, it is less likely to reach a dangerous high pressure level, thereby reducing the probability of safety accidents such as explosions.

[0023] Furthermore, a tightening plate 62 is rotatably mounted on the bottom of the rotating rod 6 , and the tightening plate 62 is fixedly abutted against the top of the capacitor body 1 .

[0024] In actual application of this embodiment, the pressing plate 62 presses the capacitor body 1 tightly, thereby improving the stability of the capacitor body 1 during operation and effectively preventing the capacitor body 1 from being damaged due to shaking.

[0025] like Figure 2 , Figure 6 and Figure 7 As shown, a plurality of heat dissipation components 8 are installed on the side of the capacitor body 1, and the heat dissipation components 8 include: The arc plate 81 is against the side of the capacitor body 1. A plurality of guide rods 82 are arranged on the other side of the arc plate 81. The guide rods 82 penetrate the housing 3. An elastic member 83 is connected between the arc plate 81 and the housing 3. The elastic member 83 is located outside the guide rod 82. Wedge block 1 85 is disposed on the surface of the arc plate 81 , and wedge block 2 87 is disposed between two adjacent movable rods 86 , and the inclined surface of wedge block 1 85 abuts against the inclined surface of wedge block 2 87 .

[0026] A plurality of conical rods 84 are arranged on the surface of the arc plate 81, and a plurality of heat exhaust holes 33 are opened on the surface of the shell 3. The conical rods 84 pass through the heat exhaust holes 33, and the ends of the conical rods 84 block the heat exhaust holes 33. The diameter of one end of the conical rod 84 connected to the arc plate 81 is smaller than the diameter of the end of the conical rod 84.

[0027] It should be noted that the high-pressure gas ejected from the pressure relief valve 4 may not be able to ensure that the annular plate 7 moves downward stably. Based on this problem, a heat exhaust component 8 is provided for assistance.

[0028] In one case of this embodiment, the elastic member 83 may be a spring or other elastically expandable and contractible member.

[0029] In actual application of this embodiment, the capacitor body 1 generates high temperature during operation, and the capacitor body 1 may bulge. The bulge of the capacitor body 1 is generally located at its periphery. When the capacitor body 1 expands and bulges, the arc plate 81 at the periphery of the capacitor body 1 moves outward, and the wedge block 1 85 moves, so that the wedge block 2 87 drives the plurality of movable rods 86 to move downward, so that the movable rods 86 contact the annular plate 7 and push the annular plate 7 downward, so that the guide disc 5 can move downward stably, so that the capacitor body 1 can be stably cooled and dissipated. When the arc plate 81 moves outward, the conical rod 84 also moves outward. At this time, a gap is formed between the conical rod 84 and the heat exhaust hole 33, and the high-temperature gas in the shell 3 can be discharged from the gap to the outside of the shell 3, thereby achieving a heat dissipation effect. When the heat dissipation fan 11 and the heat dissipation fan 2 12 rotate, the heat dissipation fan 11 and the heat dissipation fan 2 12 draw external air into the shell 3. After the pressure relief valve 4 is depressurized, the shell 3 is slowly in a stable pressure state. At this time, the external air enters the shell 3, making the shell 3 in a high-pressure state again. Since the external air enters from the top of the shell 3, the external air squeezes the high-temperature gas inside the shell 3, causing the high-temperature gas to be discharged from the gap, thereby achieving the purpose of heat dissipation. The heat dissipation of the heat dissipation fan 11 and the heat dissipation fan 2 12 improves the heat dissipation effect of the capacitor body 1, thereby reducing the probability of safety accidents such as explosions.

[0030] like Figure 4 and Figure 8 As shown, the horn column 2 includes a main pin 21 and an auxiliary pin 22, the main pin 21 is connected to the capacitor body 1, a plurality of mounting plates 14 are arranged at the bottom of the housing 3, a resistor block 23 is arranged on the mounting plate 14, and an auxiliary pin 22 is arranged at the bottom of the resistor block 23.

[0031] An adjustment assembly 9 is installed at the bottom of the housing 3, and the adjustment assembly 9 includes: Gear 91 and tooth plate 1 92, a gear 91 is installed on the inner wall of the housing 3, a tooth plate 1 92 is movably penetrated through the bottom of the housing 3, the tooth plate 1 92 and the gear 91 are meshed with each other, a tooth plate 2 101 is arranged on the connecting plate 10, the tooth plate 2 101 and the gear 91 are meshed with each other, and the tooth plate 2 101 and the tooth plate 1 92 are kept parallel; The bottom end of the tooth plate 1 92 is provided with a shaped plate 93, and the two ends of the shaped plate 93 are respectively provided with a return frame 1 931 and a return frame 2 932, the return frame 1 931 is sleeved around the main pin 21, and the return frame 2 932 is sleeved around the resistor block 23; The U-shaped plate 93, the first circular frame 931 and the second circular frame 932 are all made of conductive materials.

[0032] In practical application of this embodiment, while the guiding disc 5 moves downward, the second toothed plate 101 on the connecting plate 10 drives the gear 91 to rotate, thereby causing the first toothed plate 92 to move upward. The first toothed plate 92 drives the U-shaped plate 93 to move upward, causing the second return-shaped frame 932 to move upward. After the second return-shaped frame 932 moves upward, the distance between the second return-shaped frame 932 and the secondary pin 22 increases. Since the U-shaped plate 93 connects the main pin 21 and the secondary pin 22, the path length of the current passing through the resistance block 23 increases, increasing the overall resistance of the capacitor body 1. With the voltage remaining unchanged, the current passing through the capacitor body 1 is reduced, thereby preventing the temperature of the capacitor body 1 from continuing to rise to a certain extent. In cooperation with cooling and heat dissipation of the capacitor body 1, the cooling and heat dissipation effect of the capacitor body 1 is further improved, thereby reducing the occurrence probability of safety accidents such as explosion.

[0033] Heat-resistant horn capacitor and its usage method. The method is applied to the heat-resistant horn capacitor as described above. The method includes the following steps: Step S1: When the capacitor body 1 operates, a large amount of heat is generated, increasing the pressure inside the housing 3. After reaching a certain level, pressure relief is carried out through the pressure relief valve 4. Step S2: When the pressure relief valve 4 relieves pressure, high-pressure gas is ejected. The high-pressure gas pushes the circular ring plate 7 to move away from the housing 3. The circular ring plate 7 drives the guiding disc 5 to move downward through the connecting plate 10, converting the housing 3 from a sealed state to a ventilated state. Step S3: During the downward movement of the guiding disc 5, the guiding block 52 moves along the guiding groove 63, causing the rotating rod 6 to rotate, and causing the first radiator fan 11 and the second radiator fan 12 to rotate. The first radiator fan 11 and the second radiator fan 12 draw external air into the housing 3 to cool the capacitor body 1. Step S4: The downward movement of the connecting plate 10 causes the gear 91 to rotate, causing the first toothed plate 92 to move upward, causing the U-shaped plate 93 to drive the first return-shaped frame 931 and the second return-shaped frame 932 to move upward. When the second return-shaped frame 932 moves upward, the path length of the current passing through the resistance block 23 increases, increasing the overall resistance of the capacitor body 1. With the voltage remaining unchanged, the current passing through the capacitor body 1 is reduced, preventing the temperature of the capacitor body 1 from continuing to rise. Step S5: When the capacitor body 1 expands on the surface during operation, a plurality of arc plates 81 move outward, and the tapered rod 84 also moves outward. At this time, a gap is formed between the tapered rod 84 and the heat discharge hole 33. The air drawn into the housing 3 not only cools the capacitor body 1, but also squeezes and discharges the hot air inside the housing 3 through the gap.

[0034] 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 to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A heat-resistant ox-horn capacitor, comprising a housing (3) with a hollow top, a filter (13) mounted on the top of the housing (3), a positioning seat (31) fixed in the housing (3), a capacitor body (1) mounted in the positioning seat (31), and a plurality of pressure relief valves (4) mounted on the bottom of the housing (3), wherein: The horn column (2) on the capacitor body (1) penetrates the outer shell (3), and is characterized in that the capacitor further comprises: A guide disc (5), the guide disc (5) being located in the inner cavity of the outer shell (3), a plurality of connecting plates (10) penetrating the bottom of the outer shell (3), the plurality of connecting plates (10) being fixedly connected to the bottom of the guide disc (5), the inner cavity of the outer shell (3) being provided with a step (32), the guide disc (5) abutting against the step (32) so that the outer shell (3) is in a sealed state; A circular ring plate (7), one end of the plurality of connecting plates (10) located outside the housing (3) is fixedly connected to the circular ring plate (7), and the pressure relief port of the pressure relief valve (4) faces the plate surface of the circular ring plate (7); A rotating rod (6), a fixing plate (61) is fixed on the inner wall of the housing (3), the rotating rod (6) is rotatably mounted on the fixing plate (61), a spiral guide groove (63) is provided on the outer periphery of the rotating rod (6), a through hole (51) is provided on the guide disc (5), the rotating rod (6) passes through the through hole (51), a guide block (52) is provided on the side wall of the through hole (51), and the guide block (52) is sleeved in the guide groove (63); A heat dissipation fan (11) and a heat dissipation fan (12), wherein the heat dissipation fan (11) and the heat dissipation fan (12) are respectively fixedly mounted on the outer periphery of the rotating rod (6), the heat dissipation fan (11) and the heat dissipation fan (12) are arranged vertically, and the fan blades on the heat dissipation fan (11) and the fan blades on the heat dissipation fan (12) face the same direction.

2. The heat-resistant horn capacitor according to claim 1, characterized in that: A plurality of movable rods (86) are fixed to the bottom of the guide disc (5), the movable rods (86) penetrate the outer shell (3), a fixing ring (88) is provided on the periphery of the movable rods (86), a second elastic member (89) is connected between the fixing ring (88) and the bottom of the inner cavity of the outer shell (3), and the second elastic member (89) is located on the periphery of the movable rods (86).

3. The heat-resistant horn capacitor according to claim 1, characterized in that: The upper and lower surfaces of the guide disc (5) are both conical, and the outer periphery of the guide disc (5) does not contact the inner wall of the outer shell (3).

4. The heat-resistant horn capacitor according to claim 1, characterized in that: A tightening plate (62) is rotatably mounted on the bottom of the rotating rod (6), and the tightening plate (62) is fixedly abutted against the top of the capacitor body (1).

5. The heat-resistant horn capacitor according to claim 2, characterized in that: A plurality of heat dissipation components (8) are installed on the side of the capacitor body (1), and the heat dissipation components (8) include: An arc plate (81), the arc plate (81) abutting against a side surface of the capacitor body (1), a plurality of guide rods (82) being provided on the other side of the arc plate (81), the guide rods (82) penetrating the housing (3), an elastic member 1 (83) being connected between the arc plate (81) and the housing (3), the elastic member 1 (83) being located outside the guide rods (82); A wedge-shaped block (85) is provided on the surface of the arc plate (81), and a wedge-shaped block (87) is provided between two adjacent movable rods (86), wherein the inclined surface of the wedge-shaped block (85) abuts against the inclined surface of the wedge-shaped block (87).

6. The heat-resistant horn capacitor according to claim 5, characterized in that: A plurality of tapered rods (84) are provided on the surface of the arc plate (81). A plurality of heat discharge holes (33) are formed on the surface of the outer shell (3). The tapered rods (84) pass through the heat discharge holes (33), and the ends of the tapered rods (84) block the heat discharge holes (33). The diameter of the end of the tapered rod (84) connected to the arc plate (81) is smaller than the diameter of the end of the tapered rod (84).

7. The heat-resistant horn capacitor according to claim 6, characterized in that: The horn column (2) includes a main pin (21) and a sub-pin (22). The main pin (21) is connected to the capacitor body (1). A plurality of mounting plates (14) are provided at the bottom of the outer shell (3). A resistance block (23) is provided on the mounting plate (14). The bottom of the resistance block (23) is provided with a sub-pin (22).

8. The heat-resistant horn capacitor according to claim 7, characterized in that: An adjusting assembly (9) is installed at the bottom of the outer shell (3). The adjusting assembly (9) includes: A gear (91) and a first toothed plate (92). The gear (91) is installed on the inner wall of the outer shell (3). The first toothed plate (92) movably penetrates through the bottom of the outer shell (3). The first toothed plate (92) meshes with the gear (91). A second toothed plate (101) is provided on the connecting plate (10). The second toothed plate (101) meshes with the gear (91). The second toothed plate (101) is parallel to the first toothed plate (92); A U-shaped plate (93). The bottom end of the first toothed plate (92) is provided with a U-shaped plate (93). A first loop frame (931) and a second loop frame (932) are respectively provided at both ends of the U-shaped plate (93). The first loop frame (931) is sleeved around the main pin (21), and the second loop frame (932) is sleeved around the resistance block (23); The U-shaped plate (93), the first loop frame (931), and the second loop frame (932) are all made of conductive materials.

9. A heat-resistant horn capacitor and a method of using the same, characterized in that: The method is applied to the heat-resistant horn capacitor as described in any one of claims 1-8 above. The method includes the following steps: Step S1: When the capacitor body (1) operates, a large amount of heat is generated, increasing the pressure inside the outer shell (3). The pressure relief valve (4) automatically opens for pressure relief; Step S2: When the pressure relief valve (4) relieves pressure, high-pressure gas is ejected. The high-pressure gas pushes the circular ring plate (7) to move away from the outer shell (3). The circular ring plate (7) drives the guide disc (5) to move downward through the connecting plate (10), converting the outer shell (3) from a sealed state to a ventilated state; Step S3: During the process of the guide disc (5) moving downward, the guide block (52) moves along the guide groove (63), causing the rotating rod (6) to rotate, and causing the first radiator fan (11) and the second radiator fan (12) to rotate. The first radiator fan (11) and the second radiator fan (12) draw external air into the outer shell (3) to cool the capacitor body (1). Step S4: the connecting plate (10) moves downward to rotate the gear (91), so that the tooth plate 1 (92) moves upward, and the shaped plate (93) drives the return frame 1 (931) and the return frame 2 (932) to move upward. When the return frame 2 (932) moves upward, the path length of the current passing through the resistance block (23) increases, so that the overall resistance of the capacitor body (1) increases. When the voltage remains unchanged, the current passing through the capacitor body (1) is reduced, thereby preventing the temperature of the capacitor body (1) from continuing to rise. Step S5: When the capacitor body (1) is in operation, the surface expands, causing the plurality of arc plates (81) to move outward, and the conical rod (84) to also move outward. At this time, a gap is formed between the conical rod (84) and the heat exhaust hole (33). The air drawn into the housing (3) not only cools the capacitor body (1), but also squeezes the hot air in the housing (3) out through the gap.

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