CN114388459B - A fast thyristor capable of dissipating heat - Google Patents

Abstract

The present invention discloses a fast thyristor capable of dissipating heat. The wiping heat dissipation mechanism includes a lifting frame and symmetrically arranged heat exchange plates. The outer surfaces of the two heat exchange plates are both embedded and fixedly connected with heat-sensitive plates. The outer surfaces of the two heat-sensitive plates on the sides close to each other are both fixedly connected to the outer surface of the thyristor. The present invention relates to the technical field of thyristors. The fast thyristor capable of dissipating heat is provided with a wiping heat dissipation mechanism. When the temperature rises, the resistance inside the heat-sensitive plate changes. The servo motor drives the screw rod to rotate forward and reversely, so that the lifting frame drives the wiping plate to reciprocate up and down, so that the evaporative liquid contained in the wiping plate is smeared on the heat exchange plate to improve the heat dissipation efficiency so that the thyristor can be cooled quickly to avoid damage to the internal components due to high temperature. The combination of the above structures solves the problem that the natural heat dissipation efficiency of the thyristor is low and the temperature cannot be cooled in time, which easily leads to damage to the components or reduced service life.

Description

A fast thyristor capable of dissipating heat

Technical Field

The invention relates to the technical field of thyristors, in particular to a fast thyristor capable of dissipating heat.

Background Art

Thyristor is also called silicon controlled rectifier, once referred to as thyristor; thyristor is a PNPN four-layer semiconductor structure, it has three poles: anode, cathode and gate; the working conditions of thyristor are: forward voltage is applied and there is trigger current at the gate; its derived devices include: fast thyristor, bidirectional thyristor, reverse conducting thyristor, light-controlled thyristor, etc.

Thyristors tend to generate heat when in use, causing the components to heat up. Generally, thyristors are cooled by natural heat dissipation. However, when the temperature is high and the heat lasts for a long time, it is easy to cause damage to the thyristor or reduce its service life. Therefore, it is necessary to solve the above problems.

Summary of the invention

In view of the deficiencies of the prior art, the present invention provides a fast thyristor capable of dissipating heat, which solves the problem that the thyristor has low natural heat dissipation efficiency and cannot be cooled in time, which easily leads to component damage or shortened service life.

To achieve the above objectives, the present invention is implemented through the following technical solutions: A fast thyristor capable of dissipating heat comprises a thyristor, and a wiping heat dissipation mechanism is arranged outside the thyristor.

The wiping heat dissipation mechanism includes a lifting frame and symmetrically arranged heat exchange plates, the outer surfaces of the two heat exchange plates are embedded and fixedly connected with heat-sensitive plates, the outer surfaces of the two heat-sensitive plates on the sides close to each other are fixedly connected to the outer surface of the thyristor, the outer surfaces of the two heat exchange plates on the sides close to each other are fixedly connected to the outer surface of the thyristor, and the outer surfaces of the two heat exchange plates on the sides away from each other are movably connected with wiping plates, the lifting frame is connected to the wiping plate through an installation component, a feeding component is provided on the outside of the lifting frame, servo motors are provided on the left and right sides of the top of the lifting frame, and screw rods are threadedly connected on the left and right sides of the inside of the lifting frame, and one end of the two screw rods is fixedly connected to the output end of the servo motor through a coupling.

Preferably, the mounting assembly comprises an upper splint and a lower splint, the tops of the two upper splints are fixedly connected to the bottom of the lifting frame, the outer surfaces of the upper splint and the lower splint on one side close to each other are movably connected to the outer surface of the wiping plate, the left and right sides of the bottom of the upper splint are fixedly connected with upper connecting blocks, the left and right sides of the top of the lower splint are fixedly connected with lower connecting blocks, and the top of the lower connecting block is movably connected to the bottom of the upper connecting block.

Preferably, a screw is movably connected through the interior of the upper splint, the end cap of the screw is snap-fitted with the top of the upper splint, the outer surface of the screw is movably connected with the upper connecting block, the lower connecting block and the interior of the lower splint respectively, a nut is threadedly connected to the outer surface of the screw, and the top of the nut is movably connected to the bottom of the lower splint.

Preferably, the feeding assembly comprises a material box and a bracket, the inner wall of the bracket is fixedly connected to the outer surface of the material box, and the top of the inner wall of the bracket is fixedly connected to the top of the servo motor.

Preferably, a feed pipe runs through the interior of the material box, and a sealing sleeve is threadedly connected to the outer surface of the feed pipe.

Preferably, a through movable groove is provided at the bottom of the material box, and a sealing plate is movably connected to the inner surface of the movable groove.

Preferably, a connecting plate is provided inside the material box, and the bottom of the connecting plate is fixedly connected to the top of the sealing plate.

Preferably, a spring telescopic rod is fixedly connected to the outer surface of the connecting plate, and the bottom end of the spring telescopic rod is fixedly connected to the bottom of the inner wall of the material box.

Beneficial Effects

The present invention provides a fast thyristor capable of dissipating heat. Compared with the prior art, it has the following beneficial effects:

(1) The fast thyristor capable of dissipating heat, the wiping heat dissipation mechanism comprises a lifting frame and symmetrically arranged heat exchange plates, the outer surfaces of the two heat exchange plates are embedded and fixedly connected with heat-sensitive plates, the outer surfaces of the two heat-sensitive plates on the sides close to each other are fixedly connected to the outer surface of the thyristor, the outer surfaces of the two heat exchange plates on the sides close to each other are fixedly connected to the outer surface of the thyristor, the outer surfaces of the two heat exchange plates on the sides away from each other are movably connected with wiping plates, the lifting frame is connected to the wiping plates through a mounting assembly, a feeding assembly is arranged on the outside of the lifting frame, servo motors are arranged on the left and right sides of the top of the lifting frame, and screw rods are threadedly connected to the left and right sides of the inside of the lifting frame, and one end of the two screw rods is fixedly connected to the output end of the servo motor through a coupling. A fixed connection is provided, and a wiping heat dissipation mechanism is provided. When the thyristor generates heat, the heat exchange plate replaces the internal heat thereof so as to cool the thyristor. At the same time, the thermal plate contacts the thyristor. When the temperature rises, the internal resistance of the thermal plate changes. The operation of the servo motor is controlled by the change of the internal current of the thermal plate. The servo motor drives the lead screw to rotate forward and reversely, so that the lifting frame drives the wiping plate to reciprocate up and down, so that the evaporative liquid contained in the wiping plate is smeared on the heat exchange plate to improve the heat dissipation efficiency so that the thyristor can be cooled quickly and the internal components can be prevented from being damaged by high temperature. The combination of the above structures solves the problem that the natural heat dissipation efficiency of the thyristor is low and the temperature cannot be cooled in time, which may easily lead to component damage or reduced service life.

(2) The fast thyristor capable of dissipating heat has an installation assembly comprising an upper clamping plate and a lower clamping plate. The tops of the two upper clamping plates are fixedly connected to the bottom of the lifting frame. The sides of the outer surfaces of the upper clamping plates and the lower clamping plates that are close to each other are movably connected to the outer surface of the wiping plate. The left and right sides of the bottom of the upper clamping plate are fixedly connected to upper connecting blocks. The left and right sides of the top of the lower clamping plate are fixedly connected to lower connecting blocks. The top of the lower connecting block is movably connected to the bottom of the upper connecting block. The interior of the upper clamping plate is movably connected with a screw. The end cap of the screw is clamped with the top of the upper clamping plate. The outer surfaces of the screw are respectively connected to the upper connecting block, the lower connecting block and the lower connecting block. The interior of the clamping plate is movably connected, and a nut is threadedly connected to the outer surface of the screw, and the top of the nut is movably connected to the bottom of the lower clamping plate. By setting up a mounting mechanism, the wiping plate can be clamped by the combination of the upper clamping plate and the lower clamping plate. At the same time, the combination of the screw and the nut can enhance the stability of the clamping of the wiping plate, and the wiping plate can be quickly disassembled and replaced. Through the combination of the upper connecting block and the lower connecting block, firstly, the wiping plate can be quickly clamped, and secondly, the wiping plate will not be squeezed when it is clamped, thereby avoiding the circulation of evaporating liquid on the left and right sides of the wiping plate.

(3) The fast thyristor capable of dissipating heat, the feeding assembly comprises a material box and a bracket, the inner wall of the bracket is fixedly connected to the outer surface of the material box, the top of the inner wall of the bracket is fixedly connected to the top of the servo motor, a feeding pipe is connected to the inside of the material box, the outer surface of the feeding pipe is threadedly connected to a sealing sleeve, a through movable groove is provided at the bottom of the material box, the inner surface of the movable groove is movably connected to a sealing plate, a connecting plate is provided inside the material box, the bottom of the connecting plate is fixedly connected to the top of the sealing plate, the outer surface of the connecting plate is fixedly connected to a spring telescopic rod, the bottom end of the spring telescopic rod is fixedly connected to the bottom of the inner wall of the material box, by setting the feeding assembly, the combination of the feeding pipe and the sealing sleeve can not only load the material but also prevent the natural evaporation of the evaporating liquid, and the sealing plate can also seal the movable groove to prevent the leakage of the evaporating liquid, when the wiping plate rises, one side of it enters the movable groove and pushes the sealing plate and the connecting plate, when one side of the wiping plate enters the material box, it can absorb the evaporating liquid for heat dissipation of the thyristor, and when the wiping plate is withdrawn, the sealing plate can enter the movable groove again for sealing by the action of the spring telescopic rod.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of the external structure of the present invention;

FIG2 is a perspective view of the external structure of the lifting frame of the present invention;

FIG3 is a disassembled view of the external structure of the wiping plate of the present invention;

FIG4 is a perspective view of the external structure of the heat exchange plate of the present invention;

FIG. 5 is an exploded view of the internal structure of the material box of the present invention.

In the figure: 1-thyristor, 2-wiping heat dissipation mechanism, 21-lifting frame, 22-heat exchange plate, 23-thermal plate, 24-wiping plate, 25-installation assembly, 251-upper clamping plate, 252-lower clamping plate, 253-upper connecting block, 254-lower connecting block, 255-screw, 256-nut, 26-feeding assembly, 261-material box, 262-bracket, 263-feeding pipe, 264-sealing sleeve, 265-movable groove, 266-sealing plate, 267-connecting plate, 268-spring telescopic rod, 27-servo motor, 28-screw.

DETAILED DESCRIPTION

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.

Please refer to Figures 1-5. The present invention provides a technical solution: a fast thyristor capable of dissipating heat, comprising a thyristor 1, wherein a wiping heat dissipation mechanism 2 is arranged on the outside of the thyristor 1; the wiping heat dissipation mechanism 2 comprises a lifting frame 21 and symmetrically arranged heat exchange plates 22, wherein the heat exchange plates 22 are made of a material having good heat transfer performance and corrosion resistance, and the heat exchange plates 22 not only facilitate rapid cooling of the thyristor 1, but also prevent the thyristor 1 from being corroded and damaged by external liquid, and the outer surfaces of the two heat exchange plates 22 are both embedded with fixedly connected thermal plates 23, the thermal plates 23 are electrically connected to an external control circuit, and the internal resistance of the thermal plates 23 changes due to the influence of temperature, and the sides of the outer surfaces of the two thermal plates 23 that are close to each other are fixedly connected to the outer surface of the thyristor 1, and the sides of the outer surfaces of the two heat exchange plates 22 that are close to each other are fixedly connected to the outer surface of the thyristor 1, and the sides of the outer surfaces of the two heat exchange plates 22 that are far away from each other The wiping plate 24 is movably connected to the lifting frame 21. The wiping plate 24 is made of a material with a certain hardness, water absorption and water locking properties, and is in an I-shape. The lifting frame 21 is connected to the wiping plate 24 through a mounting assembly 25. A feeding assembly 26 is arranged on the outside of the lifting frame 21. A servo motor 27 is arranged on the left and right sides of the top of the lifting frame 21. The servo motor 27 is electrically connected to the external control circuit. The left and right sides of the inside of the lifting frame 21 are threadedly connected with a screw rod 28. One end of the two screw rods 28 is fixedly connected to the output end of the servo motor 27 through a coupling. The mounting assembly 25 includes an upper clamping plate 251 and a lower clamping plate 252. The tops of the two upper clamping plates 251 are fixedly connected to the bottom of the lifting frame 21. The sides of the outer surfaces of the upper clamping plate 251 and the lower clamping plate 252 that are close to each other are movably connected to the outer surface of the wiping plate 24. The left and right sides of the bottom of the upper clamping plate 251 are fixedly connected The upper connecting block 253 is connected, and the left and right sides of the top of the lower clamping plate 252 are fixedly connected with the lower connecting block 254. The top of the lower connecting block 254 is movably connected to the bottom of the upper connecting block 253. The upper clamping plate 251 is movably connected with a screw 255 running through the interior of the upper clamping plate 251. The end cap of the screw 255 is clamped with the top of the upper clamping plate 251. The outer surface of the screw 255 is movably connected with the upper connecting block 253, the lower connecting block 254 and the interior of the lower clamping plate 252. The outer surface of the screw 255 is threadedly connected with a nut 256. The top of the nut 256 is movably connected to the bottom of the lower clamping plate 252. The feeding assembly 26 includes a material box 261 and a bracket 262. The material box 261 is filled with an evaporating liquid that is easy to volatilize and non-toxic. The bracket 262 can be connected to the thyristor 1 installation position. The inner wall of the bracket 262 is fixedly connected to the outer surface of the material box 261. The top of the inner wall of the bracket 262 is connected to the servo motor. The top of the machine 27 is fixedly connected, the interior of the material box 261 is connected with a feed pipe 263, the outer surface of the feed pipe 263 is threadedly connected with a sealing sleeve 264, and the sealing sleeve 264 is made of a material with good sealing performance. A through movable groove 265 is provided at the bottom of the material box 261, and the size of the movable groove 265 is adapted to the size of one side of the wiping plate 24. The inner surface of the movable groove 265 is movably connected with a sealing plate 266, and the sealing plate 266 is adapted to the size of the movable groove 265. The sealing plate 266 is made of a material with good sealing performance. A connecting plate 267 is provided inside the material box 261, and the bottom of the connecting plate 267 is fixedly connected to the top of the sealing plate 266, and the outer surface of the connecting plate 267 is fixedly connected with a spring telescopic rod 268, and the spring telescopic rod 268 is made of corrosion-resistant material, and the bottom end of the spring telescopic rod 268 is fixedly connected to the bottom of the inner wall of the material box 261.

Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

During operation, after the thyristor 1 is heated up, the internal resistance of the thermal plate 23 changes due to the temperature change, thereby causing the internal current to change. After receiving the current change of the thermal plate 23, the control circuit controls the servo motor 27 to work, and the servo motor 27 drives the screw rod 28 to rotate forward and reversely, so that the lifting frame 21 drives the wiping plate 24 to reciprocate up and down. When the wiping plate 24 rises, one side of it enters the inside of the movable groove 265 and pushes the sealing plate 266 and the connecting plate 267. When one side of the wiping plate 24 enters the inside of the material box 261, it can absorb the evaporative liquid. When the wiping plate 24 is pulled out, the sealing plate 266 can enter the inside of the movable groove 265 again for sealing through the action of the spring telescopic rod 268. Then the wiping plate 24 follows the lifting frame 21 to reciprocate up and down, thereby smearing the evaporative liquid contained in the wiping plate 24 on the heat exchange plate 22, so as to improve the heat dissipation efficiency so that the thyristor 1 can be cooled quickly.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. A fast thyristor capable of dissipating heat, comprising a thyristor (1), characterized in that a wiping heat dissipation mechanism (2) is arranged outside the thyristor (1); The wiping heat dissipation mechanism (2) comprises a lifting frame (21) and symmetrically arranged heat exchange plates (22), the outer surfaces of the two heat exchange plates (22) are both embedded and fixedly connected with a heat-sensitive plate (23), the outer surfaces of the two heat-sensitive plates (23) close to each other are both fixedly connected to the outer surface of the thyristor (1), the outer surfaces of the two heat exchange plates (22) close to each other are both fixedly connected to the outer surface of the thyristor (1), the outer surfaces of the two heat exchange plates (22) away from each other are both movably connected with a wiping plate (24), and the wiping plate (24) is fixedly connected to the outer surface of the thyristor (1). 4) Made of a material with a certain hardness and water absorption and water retention properties, and in an I-shape, the lifting frame (21) is connected to the wiping plate (24) through a mounting assembly (25), a feeding assembly (26) is arranged outside the lifting frame (21), servo motors (27) are arranged on the left and right sides of the top of the lifting frame (21), and screw rods (28) are threadedly connected to the left and right sides of the inside of the lifting frame (21), and one end of the two screw rods (28) is fixedly connected to the output end of the servo motor (27) through a coupling; The material feeding assembly (26) comprises a material box (261) and a bracket (262), wherein the inner wall of the bracket (262) is fixedly connected to the outer surface of the material box (261), and the top of the inner wall of the bracket (262) is fixedly connected to the top of the servo motor (27); a through movable groove (265) is provided at the bottom of the material box (261), and a sealing plate (266) is movably connected to the inner surface of the movable groove (265); a connecting plate (267) is provided inside the material box (261), and the bottom of the connecting plate (267) is fixedly connected to the top of the sealing plate (266); a spring telescopic rod (268) is fixedly connected to the outer surface of the connecting plate (267), and the bottom end of the spring telescopic rod (268) is fixedly connected to the bottom of the inner wall of the material box (261); The heat-sensitive plate (23) outputs a control signal to the servo motor (27) according to the temperature rise of the thyristor (1); the servo motor (27) drives the lead screw (28) to rotate forward and reverse to drive the wiping plate (24) to reciprocate up and down; after the wiping plate (24) rises, one side of the wiping plate (24) enters the interior of the movable groove (265) and pushes the sealing plate (266) and the connecting plate (267), thereby entering the interior of the material box (261) to absorb the evaporating liquid; after the wiping plate (24) is withdrawn, the sealing plate (266) enters the interior of the movable groove (265) again through the action of the spring telescopic rod (268) to perform sealing; the wiping plate (24) reciprocates up and down to apply the evaporating liquid on the heat exchange plate (22). 2. A fast thyristor capable of dissipating heat according to claim 1, characterized in that: the mounting assembly (25) comprises an upper clamping plate (251) and a lower clamping plate (252), the tops of the two upper clamping plates (251) are fixedly connected to the bottom of the lifting frame (21), the outer surfaces of the upper clamping plate (251) and the lower clamping plate (252) are movably connected to the outer surface of the wiping plate (24) on the sides close to each other, the left and right sides of the bottom of the upper clamping plate (251) are fixedly connected with upper connecting blocks (253), the left and right sides of the top of the lower clamping plate (252) are fixedly connected with lower connecting blocks (254), and the top of the lower connecting block (254) is movably connected to the bottom of the upper connecting block (253). 3. A fast thyristor capable of dissipating heat according to claim 2, characterized in that: a screw (255) is movably connected to the interior of the upper clamping plate (251), an end cap of the screw (255) is snap-fitted to the top of the upper clamping plate (251), an outer surface of the screw (255) is movably connected to the interior of the upper connecting block (253), the lower connecting block (254) and the lower clamping plate (252), a nut (256) is threadedly connected to the outer surface of the screw (255), and the top of the nut (256) is movably connected to the bottom of the lower clamping plate (252). 4. A fast thyristor capable of dissipating heat according to claim 3, characterized in that: a feed pipe (263) runs through the interior of the material box (261) and is connected to a sealing sleeve (264) on the outer surface of the feed pipe (263) through a thread.