A low specific on-resistance vertical power device using a high dielectric constant slot structure

Abstract

The invention relates to the technical field of power devices, and discloses a low specific on-resistance longitudinal power device using a high dielectric constant slot structure, comprising a main body, the top of which is fixedly connected with an autonomous cooling mechanism, the autonomous cooling mechanism comprising a heat-conducting support plate, a block, a cavity, a thermal control component, a drain pipe, a hollow plate, a drain port, a thin sponge pad, and alcohol, the top of the main body is fixedly connected with a heat-conducting support plate, the top of the heat-conducting support plate is fixedly connected with a block, and the inner side of the block is provided with a cavity; through the mutual cooperation between the heat-conducting support plate, the cavity, the thermal control component, the drain pipe, the hollow plate, the thin sponge pad and the alcohol, the surface heat of the power device can be automatically conducted when the temperature of the power device is high, so that the alcohol in the block can slowly flow out and penetrate into the device surface, and the alcohol volatilizes and absorbs heat to quickly cool the device, so that the power device can have a better cooling effect during actual use.

Description

Technical Field

[0001] The present invention relates to the technical field of power devices, in particular to a low specific on-resistance vertical power device using a high dielectric constant slot structure. Background Art

[0002] Power devices will generate a lot of heat during actual use, and their own heat dissipation and cooling efficiency is relatively low. Therefore, the actual reason for the damage of power electrical appliances is mostly because the actual dissipated power exceeds the rated power, causing the temperature to remain high and cause damage. Therefore, existing power devices will use external cooling equipment, such as fans, to cool them down during actual use. Although this cooling method can meet the needs under normal working conditions, when the power device is in a high-efficiency working state for a long time, it still cannot meet its cooling and heat dissipation needs, resulting in poor heat dissipation effect of the power device during actual use. Summary of the invention

[0003] In order to solve the problem of poor heat dissipation effect of the above-mentioned power device and achieve the purpose of better heat dissipation effect of the above-mentioned power device, the present invention is implemented through the following technical scheme: a low specific on-resistance longitudinal power device using a high dielectric constant slot structure, comprising a body, the top of the body is fixedly connected with an autonomous cooling mechanism, the autonomous cooling mechanism comprises a heat-conducting support plate, a block, a cavity, a thermal control component, a drain pipe, a hollow plate, a drain port, a thin sponge pad, and alcohol, the top of the body is fixedly connected with a heat-conducting support plate, the top of the heat-conducting support plate is fixedly connected with a block, the inner side of the block is provided with a cavity, the interior of the cavity is provided with a thermal control component, the interior of the block is filled with alcohol, the bottom of the block is fixedly connected with a drain pipe, the bottom of the drain pipe is fixedly connected with a hollow plate, the bottom of the hollow plate is provided with a drain port, and the bottom of the hollow plate is fixedly connected with a thin sponge pad;

[0004] A liquid injection mechanism is arranged inside the block, and the liquid injection mechanism includes a liquid injection port, a sealing plug, and a positioning component. A liquid injection port is opened on the top of the block, and a sealing plug is detachably embedded on the inner side surface of the liquid injection port. A sealing gasket is arranged between the sealing plug and the contact surface of the liquid injection port, so that the internal sealing of the cavity is better and the volatilization of alcohol can be effectively prevented. A positioning component is arranged inside the block.

[0005] Furthermore, the cavity includes an expansion chamber and a liquid storage chamber. The number of the expansion chambers is two. The two expansion chambers and the liquid storage chamber are respectively arranged on both sides and in the middle of the block, and the alcohol is filled in the liquid storage chamber.

[0006] Furthermore, the thermal control component includes a first push plate, a pressure relief spring, a second push plate, and expansion gas. The first push plate is slidably connected to the inside of the cavity, the first push plate is fixedly connected to the outside of the pressure relief spring, the second push plate is fixedly connected to the outside of the pressure relief spring, and the expansion cavity is filled with expansion gas. There are four heat-conducting support plates, which are symmetrically distributed at the four corners of the main body. The top of the heat-conducting support plate is arranged inside the expansion cavity, so that the heat-conducting support plate can conduct heat on the main body, so that the expansion gas inside the expansion cavity can expand due to the heat and drive the first push plate to move, so that the alcohol can be slowly squeezed out, so that the alcohol can be evenly and slowly transported to the surface of the main body under the action of the thin sponge pad, so that the main body can be efficiently cooled by absorbing heat through alcohol volatilization.

[0007] Furthermore, the upper and lower ends of the drain pipe are respectively connected to the liquid storage cavity and the hollow plate, the drain port is connected to the hollow portion inside the hollow plate, and the thin sponge pad is in contact with the top surface of the main body, so that alcohol can slowly penetrate from the thin sponge pad to the surface of the main body, thereby quickly evaporating and absorbing heat to cool the main body.

[0008] Furthermore, the number of the drainage pipes, hollow plates, and thin sponge pads is four, and they are equidistantly distributed on the bottom surface of the block, which can achieve a better cooling effect on the main body.

[0009] Furthermore, the positioning assembly includes a fixing groove, a fixed oblique rod, a connecting spring, a pull rope, and a pressure block. The outer surface of the sealing plug is provided with a fixing groove, the inner side surface of the block is fixedly connected to a connecting spring, the outside of the connecting spring is fixedly connected to a fixed oblique rod, the outside of the fixed oblique rod is fixedly connected to a pull rope, and the outside of the pull rope is fixedly connected to a pressure block.

[0010] Furthermore, the inclined surface on the fixed oblique rod is arranged upward, the position and specification of the fixed oblique rod correspond to the fixed groove, the pull rope is slidably connected to the inner side surface of the block, and the pressure block is slidably connected to the inner side surface of the block.

[0011] The present invention provides a low specific on-resistance vertical power device using a high dielectric constant slot structure. It has the following beneficial effects:

[0012] 1. The low specific on-resistance longitudinal power device with a high dielectric constant slot structure can automatically conduct the heat on the surface of the power device when the temperature is high through the cooperation between the heat-conducting support plate, cavity, thermal control component, drain pipe, hollow plate, thin sponge pad and alcohol, so that the alcohol inside the block can slowly flow out and penetrate into the surface of the device, and quickly cool it down through the alcohol volatilization and heat absorption, so that the cooling effect of the power device in actual use can be better.

[0013] 2. The low specific on-resistance longitudinal power device using a high dielectric constant slot structure can be easily replenished when alcohol is insufficient through the cooperation between the liquid injection port, the sealing plug and the positioning component, so that the autonomous cooling process of the power device can continue. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 It is a cross-sectional view of the present invention;

[0016] Figure 3 It is a schematic diagram of the internal structure of the block of the present invention;

[0017] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0018] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0019] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0020] In the figure: 1. main body; 2. autonomous cooling mechanism; 21. heat-conducting support plate; 22. block; 23. cavity; 231. expansion cavity; 232. liquid storage cavity; 24. thermal control component; 241. first push plate; 242. pressure-relief spring; 243. second push plate; 244. expansion gas; 25. drain pipe; 26. hollow plate; 27. drain port; 28. thin sponge pad; 29. ​​alcohol; 3. liquid injection mechanism; 31. liquid injection port; 32. sealing plug; 33. positioning component; 331. fixing groove; 332. fixing diagonal rod; 333. connecting spring; 334. pull rope; 335. pressing block. DETAILED DESCRIPTION

[0021] 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.

[0022] The embodiment of the low specific on-resistance vertical power device using a high dielectric constant trench structure is as follows:

[0023] See also Figure 1 - Figure 6A low specific on-resistance longitudinal power device using a high dielectric constant slot structure includes a body 1, the top of the body 1 is fixedly connected with an autonomous cooling mechanism 2, the autonomous cooling mechanism 2 includes a heat-conducting support plate 21, a block 22, a cavity 23, a thermal control component 24, a drain pipe 25, a hollow plate 26, a drain port 27, a thin sponge pad 28, and alcohol 29. The top of the body 1 is fixedly connected with a heat-conducting support plate 21, the top of the heat-conducting support plate 21 is fixedly connected with a block 22, the inner side of the block 22 is provided with a cavity 23, the cavity 23 includes an expansion cavity 231 and a liquid storage cavity 232, the number of the expansion cavity 231 is two, the two expansion cavities 231 and the liquid storage cavity 232 are respectively arranged on both sides and the middle of the inside of the block 22, and the alcohol 29 is filled in the inside of the liquid storage cavity 232.

[0024] A thermal control assembly 24 is provided inside the cavity 23, and the thermal control assembly 24 includes a first push plate 241, a pressure relief spring 242, a second push plate 243, and an expansion gas 244. The first push plate 241 is slidably connected to the inside of the cavity 23, and the pressure relief spring 242 is fixedly connected to the outside of the first push plate 241, and the second push plate 243 is fixedly connected to the outside of the pressure relief spring 242. The first push plate 241 can drive the pressure relief spring 242 and the second push plate 243 to move under the push of the expansion gas 244, and the movement of the second push plate 243 can squeeze out the alcohol 29, but the discharge speed of the alcohol 29 is limited. When the discharge speed of the alcohol 29 is less than the pushing speed of the first push plate 241, the hydraulic pressure inside the liquid storage chamber 232 will increase. At this time, the compression of the pressure relief spring 242 To buffer the squeezing force of the first push plate 241 for a certain period of time, so as to avoid the situation where the block 22 is damaged due to excessive hydraulic pressure in the liquid storage chamber 232. The expansion chamber 231 is filled with expansion gas 244. There are four heat-conducting support plates 21, which are symmetrically distributed at the four corners of the main body 1. The top of the heat-conducting support plate 21 is arranged inside the expansion chamber 231, so that the heat-conducting support plate 21 can conduct the heat on the main body 1, so that the expansion gas 244 inside the expansion chamber 231 can expand due to heat and drive the first push plate 241 to move, so that the alcohol 29 can be slowly squeezed out, so that the alcohol 29 can be evenly and slowly transported to the surface of the main body 1 under the action of the thin sponge pad 28, so that the main body 1 can be efficiently cooled by the volatilization and heat absorption of the alcohol 29.

[0025] The interior of the block 22 is filled with alcohol 29, and a drain pipe 25 is fixedly connected to the bottom of the block 22, and a hollow plate 26 is fixedly connected to the bottom of the drain pipe 25, and a drain port 27 is provided at the bottom of the hollow plate 26, and a thin sponge pad 28 is fixedly connected to the bottom of the hollow plate 26. The upper and lower ends of the drain pipe 25 are respectively connected to the liquid storage chamber 232 and the hollow plate 26, and the drain port 27 is connected to the hollow part inside the hollow plate 26. The thin sponge pad 28 is in contact with the top surface of the main body 1, so that the alcohol 29 can slowly penetrate from the thin sponge pad 28 to the surface of the main body 1, so that it can quickly evaporate and absorb heat to cool the main body 1. The number of drain pipes 25, hollow plates 26, and thin sponge pads 28 is four groups, and they are equidistantly distributed on the bottom surface of the block 22, which can make the cooling effect of the main body 1 better.

[0026] The block 22 is provided with a liquid injection mechanism 3 inside, and the liquid injection mechanism 3 includes a liquid injection port 31, a sealing plug 32, and a positioning component 33. The top of the block 22 is provided with a liquid injection port 31, and the inner side surface of the liquid injection port 31 is detachably embedded with a sealing plug 32, and the top surface of the sealing plug 32 is provided with a finger groove for easy removal. A sealing gasket is provided between the contact surface of the sealing plug 32 and the liquid injection port 31, so that the internal sealing of the cavity 23 is better, and the volatilization of the alcohol 29 can be effectively prevented. The block 22 is provided with a positioning component 33 inside, and the positioning component 33 includes a fixing groove 331, a fixing inclined rod 332, and a connecting spring Spring 333, pull rope 334, pressure block 335, the outer surface of the sealing plug 32 is provided with a fixing groove 331, the inner side surface of the block 22 is fixedly connected with a connecting spring 333, the outside of the connecting spring 333 is fixedly connected with a fixed inclined rod 332, the outside of the fixed inclined rod 332 is fixedly connected with a pull rope 334, the outside of the pull rope 334 is fixedly connected with a pressure block 335, the inclined surface on the fixed inclined rod 332 is set upward, the position and specification of the fixed inclined rod 332 correspond to the fixing groove 331, the pull rope 334 is slidably connected to the inner side surface of the block 22, and the pressure block 335 is slidably connected to the inner side surface of the block 22.

[0027] Working principle: When a large amount of heat is generated during the operation of the power device, the heat on the device is conducted to the expansion gas 244 inside the expansion chamber 231 through the heat-conducting support plate 21. The expansion gas 244 gradually expands after absorbing heat, so that the air pressure inside the expansion chamber 231 increases and generates a thrust on the first push plate 241, so that the first push plate 241 moves and drives the pressure relief spring 242 to move. The movement of the pressure relief spring 242 drives the second push plate 243 to move. When the second push plate 243 moves, it squeezes the alcohol 29 in the liquid storage chamber 232, so that the alcohol 29 in the liquid storage chamber 232 can be squeezed into the drain pipe 25 and The alcohol 29 enters the hollow plate 26 through the drain pipe 25, and finally flows out from the drain port 27 at the bottom of the hollow plate 26 and is absorbed by the thin sponge pad 28. As the alcohol 29 continues to be discharged, the alcohol 29 absorbed by the thin sponge pad 28 will be evenly dispersed inside the thin sponge pad 28, and the alcohol 29 dispersed in the thin sponge pad 28 will gradually flow downward under the action of its own weight, and finally seep out from the bottom surface of the thin sponge pad 28 and contact the surface of the device. Since the alcohol 29 is volatile, the alcohol 29 will absorb a large amount of heat when it evaporates, so that a large amount of heat on the surface of the device can be quickly taken away, so that the device can be quickly cooled down.

[0028] When alcohol 29 needs to be added, the operator manually presses the pressing block 335, which is squeezed and moves downward and pulls one end of the pull rope 334, so that the other end of the pull rope 334 moves to pull the fixed inclined rod 332. When the fixed inclined rod 332 is pulled, it moves out of the fixed groove 331, so that the movement of the sealing plug 32 is no longer restricted. At this time, the operator can pull the sealing plug 32 upward through the finger groove to open the injection port 31, thereby facilitating the replenishment of alcohol 29. When the replenishment is completed, the operator puts the sealing plug 32 against the injection port 31 and squeezes the injection port 31. At this time, the sealing plug 32 and the fixed inclined rod 332 are The inclined surface of the fixing rod 332 contacts the inclined surface of the fixing rod 332, so that under the action of the inclined surface, the fixing inclined rod 332 is subjected to a component force in the horizontal direction, so that the fixing inclined rod 332 moves into the interior of the block 22 and squeezes the connecting spring 333, so that the sealing plug 32 can smoothly enter the interior of the liquid filling port 31. When the sealing plug 32 completely enters the liquid filling port 31, the positions of the fixing inclined rod 332 and the fixing groove 331 correspond to each other, so that under the action of the rebound force of the connecting spring 333, the fixing inclined rod 332 moves in the opposite direction and resets to enter the interior of the fixing groove 331, so that the sealing plug 32 can be stably fixed inside the liquid filling port 31, making the replenishment of alcohol 29 more convenient.

[0029] 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

1. A low specific on-resistance vertical power device using a high dielectric constant slot structure, comprising a body (1), characterized in that: The top of the body (1) is fixedly connected to an autonomous cooling mechanism (2), the autonomous cooling mechanism (2) comprising a heat-conducting support plate (21), a block (22), a cavity (23), a thermal control component (24), a drain pipe (25), a hollow plate (26), a drain port (27), a thin sponge pad (28), and alcohol (29). The top of the body (1) is fixedly connected to a heat-conducting support plate (21), the top of the heat-conducting support plate (21) is fixedly connected to a block (22), and the A cavity (23) is provided on the inner side of the block (22), a thermal control component (24) is arranged inside the cavity (23), the block (22) is filled with alcohol (29), a drainage pipe (25) is fixedly connected to the bottom of the block (22), a hollow plate (26) is fixedly connected to the bottom of the drainage pipe (25), a drainage port (27) is provided at the bottom of the hollow plate (26), and a thin sponge pad (28) is fixedly connected to the bottom of the hollow plate (26); The block (22) is provided with a liquid injection mechanism (3) inside, the liquid injection mechanism (3) comprising a liquid injection port (31), a sealing plug (32), and a positioning component (33); the top of the block (22) is provided with a liquid injection port (31), the inner side surface of the liquid injection port (31) is detachably embedded with a sealing plug (32), and the inside of the block (22) is provided with a positioning component (33); The cavity (23) comprises an expansion cavity (231) and a liquid storage cavity (232). The number of the expansion cavities (231) is two. The two expansion cavities (231) and the liquid storage cavity (232) are respectively arranged on both sides and in the middle of the block (22). The alcohol (29) is filled in the liquid storage cavity (232); The thermal control component (24) comprises a first push plate (241), a pressure relief spring (242), a second push plate (243), and expansion gas (244); the first push plate (241) is slidably connected to the interior of the cavity (23); the first push plate (241) is fixedly connected to the exterior of the pressure relief spring (242); the exterior of the pressure relief spring (242) is fixedly connected to the second push plate (243); the interior of the expansion cavity (231) is filled with expansion gas (244); the number of the heat-conducting support plates (21) is four, and they are symmetrically distributed at the four corners of the body (1); the top end of the heat-conducting support plate (21) is arranged inside the expansion cavity (231); The upper and lower ends of the liquid discharge pipe (25) are respectively connected to the liquid storage cavity (232) and the hollow plate (26); the liquid discharge port (27) is connected to the hollow portion inside the hollow plate (26); and the thin sponge pad (28) is in contact with and connected to the top surface of the body (1).

2. A low specific on-resistance vertical power device using a high dielectric constant slot structure according to claim 1, characterized in that: The number of the drainage pipes (25), the hollow plates (26), and the thin sponge pads (28) is four groups, and they are distributed at equal distances on the bottom surface of the block (22).

3. A low specific on-resistance vertical power device using a high dielectric constant slot structure according to claim 2, characterized in that: The positioning assembly (33) comprises a fixing groove (331), a fixing oblique rod (332), a connecting spring (333), a pull rope (334), and a pressure block (335); the outer surface of the sealing plug (32) is provided with a fixing groove (331); the inner side surface of the block (22) is fixedly connected to a connecting spring (333); the outside of the connecting spring (333) is fixedly connected to a fixing oblique rod (332); the outside of the fixing oblique rod (332) is fixedly connected to a pull rope (334); and the outside of the pull rope (334) is fixedly connected to a pressure block (335).

4. A low specific on-resistance vertical power device using a high dielectric constant slot structure according to claim 3, characterized in that: The inclined surface on the fixed oblique rod (332) is arranged upwards, the position and specification of the fixed oblique rod (332) correspond to the fixed groove (331), the pull rope (334) is slidably connected to the inner side surface of the block (22), and the pressing block (335) is slidably connected to the inner side surface of the block (22).

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