阅读说明：本技术 一种基于超级电容的电动汽车电机驱动系统及方法 (Super capacitor-based electric vehicle motor driving system and method ) 是由 张俊峰 李卫东 赵川 杨福盛 黄传仁 于 2021-09-15 设计创作，主要内容包括：本发明属于电动汽车驱动系统技术领域,具体的说是一种基于超级电容的电动汽车电机驱动系统及方法,包括中央处理器模块、供电模块、驱动模块和防护模块；所述中央处理器模块与驱动模块信号连接；所述供电模块与中央处理器模块通过信号连接,同时供电模块对中央处理器模块进行供电；所述供电模块与驱动模块电连接；通过在驱动模块的外部设有防护模块,可在驱动模块停机时,防护模块内部的导液管就会充如冷却液,此时导液管就可将电机本体上的热量带走部分,减少电动汽车在停车时,电机本体上的热量残留,进而可加速电机本体的降温,此时就可减缓电机本体元器件的老化速度。(The invention belongs to the technical field of electric automobile driving systems, in particular to an electric automobile motor driving system and method based on a super capacitor, which comprises a central processing unit module, a power supply module, a driving module and a protection module; the central processing unit module is in signal connection with the driving module; the power supply module is in signal connection with the central processor module, and simultaneously supplies power to the central processor module; the power supply module is electrically connected with the driving module; through being equipped with protection module in drive module's outside, can be when drive module shuts down, the inside catheter of protection module will fill like the coolant liquid, and the part just can be taken away the heat on the motor body to the catheter this moment, reduces electric automobile when parkking, and the heat on the motor body is remained, and then can accelerate the cooling of motor body, just can slow down the ageing speed of motor body components and parts this moment.)

1. The utility model provides an electric automobile motor drive system based on super capacitor which characterized in that: the device comprises a central processing unit module, a power supply module, a driving module and a protection module; the central processing unit module is in signal connection with the driving module; the power supply module is in signal connection with the central processor module, and simultaneously supplies power to the central processor module;

the power supply module is electrically connected with the driving module;

the protection module is connected with the driving module, and a liquid guide pipe (11) in the protection module can control the temperature of the driving module; the liquid guide pipe (11) in the protection module is connected with a heat dissipation device with a water pump.

2. The super capacitor-based electric vehicle motor driving system according to claim 1, wherein: the central processing unit module can control the power supply voltage of the power supply module to the driving module.

3. A super capacitor-based electric automobile motor driving method is characterized in that: the driving method is suitable for the super capacitor-based electric automobile motor driving system in any one of claims 1-2, and comprises the following steps:

s1: the power supply module is opened to supply power to the central processing unit module, and then the central processing unit module controls the power supply module to supply power to the driving module after being electrified, so that the driving module can normally run;

s2: the central processing unit module can control the power supply voltage of the power supply module to the driving module by issuing an instruction to the central processing unit module, so that the rotating speed and the torque output by the driving module can be controlled, and the electric automobile can have different running speeds;

s3: when the central processing unit module issues a parking instruction, the central processing unit module controls the power supply module to enable the power supply module to gradually reduce the voltage supplied to the driving module until the power supply module stops supplying power to the driving module, at the moment, the cooling liquid of the protection module is led in from one end of the liquid guide pipe (11) under the action of the water pump and is discharged from the other end of the liquid guide pipe (11) after flowing through the whole liquid guide pipe (11), at the moment, the liquid guide pipe (11) takes away heat on the motor body (1) of the driving module, and protection of the protection module on the stopping of the driving module is achieved.

4. The super capacitor-based electric vehicle motor driving method according to claim 3, characterized in that: the protection module comprises a motor body (1); a liquid guide pipe (11) is arranged in the middle of the motor body (1); the liquid guide pipe (11) is spirally wound on the motor body (1); the inner side wall of the liquid guide pipe (11) is fixedly connected with a spiral flow deflector (12).

5. The super capacitor-based electric vehicle motor driving method according to claim 4, characterized in that: a flexible heat conducting block (2) is arranged between the liquid guide pipe (11) and the motor body (1); the flexible heat conducting block (2) is fixedly connected to the liquid guide pipe (11); a flow guide pipe (21) is fixedly connected inside the flexible heat conducting block (2); both ends of the draft tube (21) are communicated with the liquid guide tube (11).

6. The super capacitor-based electric vehicle motor driving method according to claim 5, characterized in that: the inner side wall of the liquid guide pipe (11) is fixedly connected with a plurality of groups of liquid guide sheets (3); the liquid guide sheet (3) is arranged at the port of the draft tube (21).

7. The super capacitor-based electric vehicle motor driving method according to claim 4, characterized in that: a plurality of groups of radiating fins (4) are fixedly connected with the middle part of the liquid guide pipe (11); a water storage cavity (41) is formed in the radiating fin (4); the water storage cavity (41) is communicated with the liquid guide pipe (11); the interior of the water storage cavity (41) is fixedly connected with a flexible swinging sheet (42) through a rubber rod.

8. The super capacitor-based electric vehicle motor driving method according to claim 4, characterized in that: a support rod (5) is fixedly connected to the side wall of the liquid guide pipe (11); the other end of the support rod (5) is fixedly connected with the motor body (1), and the middle part of the support rod (5) is fixedly connected with a telescopic cylinder (51); an air storage bag (52) is fixedly connected to one end of the support rod (5) which is in contact with the motor body (1); a first air duct (53) is communicated between the air storage bag (52) and the rodless cavity of the telescopic cylinder (51); the output end of the telescopic cylinder (51) is fixedly connected with a pressing plate (54); the position of the pressing plate (54) corresponds to the side wall of the flexible heat conducting block (2).

9. The super capacitor-based electric vehicle motor driving method according to claim 8, characterized in that: one side of the pressing plate (54) close to the flexible heat conducting block (2) is provided with an elastic multi-section hinged sheet (6); a first air bag (61) is fixedly connected between the elastic multi-section hinged sheet (6) and the pressing plate (54); a plurality of groups of second air bags (62) are fixedly connected between the elastic multi-section hinged sheets (6) and the pressing plate (54); and a second air duct (63) is communicated between the first air bag (61) and the second air bag (62).

10. The super capacitor-based electric vehicle motor driving method according to claim 9, wherein: a group of elastic pull ropes (64) are fixedly connected to the end part of the elastic multi-section hinged sheet (6); and the group of elastic pull ropes (64) are connected with the supporting rod (5) by bypassing the pressing plate (54).

Technical Field

The invention belongs to the technical field of electric automobile driving, and particularly relates to an electric automobile motor driving system and method based on a super capacitor.

Background

In recent years, electric vehicles have been developed rapidly in various aspects in the existing society, wherein batteries and motors are one of the core components of electric vehicles.

Some technical schemes about electric automobile drive have also appeared among the prior art, chinese patent like application number 2019108024149 discloses a two motor integrated drive system of electric automobile, including the casing, two motor element and control assembly, two motor element include motor I and motor II that link to each other through the synchronous ware, motor I's volume is great, motor I and motor II's top sets up control assembly, control assembly includes IGBT power unit I and IGBT power unit II that are motor I, motor II power supplies power respectively, IGBT power unit I sets up in motor II's top, IGBT power unit II sets up in motor I's top.

The prior art also discloses some technical schemes related to electric automobile driving, for example, a chinese patent with application number 2020112904271 discloses a double-motor driving system of an electric automobile and a control method thereof, which comprises an outer shell, a first motor unit, a second motor unit, a rotating shaft, an angle sensor and a controller, wherein the rotating shaft is arranged in the outer shell, the first motor unit and the second motor unit are arranged at two ends of the rotating shaft, the power of the first motor unit is smaller than that of the second motor unit, the shaft end of the rotating shaft is connected with the angle sensor, the angle sensor is connected with two relays i and ii which are connected in parallel with each other through the controller, the relay i is electrically connected with a control circuit of the first motor unit, and the relay ii is electrically connected with a control circuit of the second motor unit.

Among the prior art at present, when electric automobile's motor was in the operation that lasts for a long time, the motor can produce a large amount of heats, current electric automobile motor all adopts the forced air cooling to realize the control by temperature change and the cooling of motor, in long-time use observation, found when electric automobile stops fast from long-time driving state, the inside motor forced air cooling efficiency of vehicle will reduce by a wide margin, the inside a large amount of heats of motor just can't be quick the giving off this moment, the components and parts of motor will be accelerated ageing in high temperature environment.

Disclosure of Invention

The invention provides a super-capacitor-based electric vehicle motor driving system and method, aiming at making up for the defects of the prior art and solving the problems that when an electric vehicle is stopped quickly from a long-time driving state, the air cooling efficiency of a motor in the vehicle is greatly reduced, a large amount of heat in the motor cannot be quickly dissipated, and the components of the motor are accelerated to age in a high-temperature environment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a super-capacitor-based electric automobile motor driving system which comprises a central processing unit module, a power supply module, a driving module and a protection module, wherein the power supply module is connected with the central processing unit module; the central processing unit module is in signal connection with the driving module; the power supply module is in signal connection with the central processor module, and simultaneously supplies power to the central processor module;

the power supply module is electrically connected with the driving module;

the protection module is connected with the driving module, and a liquid guide pipe in the protection module can control the temperature of the driving module; the liquid guide pipe in the protection module is connected with a heat dissipation device with a water pump; through being equipped with protection module in drive module's outside, can be when drive module shuts down, the inside catheter of protection module will fill like the coolant liquid, and the part just can be taken away the heat on the motor body to the catheter this moment, reduces electric automobile when parkking, and the heat on the motor body is remained, and then can accelerate the cooling of motor body, just can slow down the ageing speed of motor body components and parts this moment.

The central processing unit module can control the power supply voltage of the power supply module to the driving module.

A super capacitor-based electric vehicle motor driving method is applicable to the super capacitor-based electric vehicle motor driving system, and comprises the following steps:

s1: the power supply module is opened to supply power to the central processing unit module, and then the central processing unit module controls the power supply module to supply power to the driving module after being electrified, so that the driving module can normally run;

s2: the central processing unit module can control the power supply voltage of the power supply module to the driving module by issuing an instruction to the central processing unit module, so that the rotating speed and the torque output by the driving module can be controlled, and the electric automobile can have different running speeds;

s3: when the central processing unit module issues a parking instruction, the central processing unit module controls the power supply module to enable the power supply module to gradually reduce the voltage supplied to the driving module until the power supply module stops supplying power to the driving module, at the moment, the cooling liquid of the protection module is led in from one end of the liquid guide pipe under the action of the water pump and is discharged from the other end of the liquid guide pipe after flowing through the whole course of the liquid guide pipe, at the moment, the liquid guide pipe can take away heat on the motor body of the driving module, and the protection of the protection module on the stopping of the driving module is realized.

Further, the driving module comprises a motor body; a liquid guide pipe is arranged in the middle of the motor body; the liquid guide pipe is spirally wound on the motor body; the inner side wall of the liquid guide pipe is fixedly connected with a spiral flow deflector; when the inside coolant liquid that is filled into of catheter, the in-process that the coolant liquid flows at the catheter inside, liquid will be rotatory flowing in the catheter inside under the direction of spiral water conservancy diversion piece, fully contact with the catheter, because of the catheter is close to the one side heat of motor body can be higher a bit, so through being equipped with the spiral water conservancy diversion piece in the catheter inside, make the coolant liquid rotatory flowing in the catheter inside, will make the coolant liquid fully contact with the hotter side of catheter, it is more high-efficient to make rotatory coolant liquid contrast direct flow's coolant liquid, and then make the inside coolant liquid of catheter take away the heat on the motor body with higher speed.

Further, a flexible heat conducting block is arranged between the liquid guide pipe and the motor body; the flexible heat conducting block is fixedly connected to the liquid guide pipe; a flow guide pipe is fixedly connected inside the flexible heat conducting block; both ends of the flow guide pipe are communicated with the liquid guide pipe; through being equipped with flexible heat conduction piece between catheter and motor body, can make the heat on the motor body conduct to catheter department through flexible heat conduction piece, the flexible heat conduction piece that is equipped with moreover is greater than catheter and motor body direct area of contact, can make the inside coolant liquid of catheter take away more heats, further accelerates the cooling rate of catheter to motor body.

Furthermore, the inner side wall of the liquid guide pipe is fixedly connected with a plurality of groups of liquid guide sheets; the liquid guide sheet is arranged at the port of the flow guide pipe; through being equipped with liquid guide piece in the port department of honeycomb duct, can be at the inside coolant liquid of catheter at the rotatory in-process that flows, with inside liquid introduction to the honeycomb duct, make the inside liquid velocity of flow of honeycomb duct also can increase, and then promote the heat exchange speed of flexible heat conduction piece and coolant liquid, the cooling speed of catheter to the motor body will be accelerated this moment.

Furthermore, a plurality of groups of radiating fins are fixedly connected to the middle part of the liquid guide pipe; a water storage cavity is formed in the radiating fin; the water storage cavity is communicated with the liquid guide pipe; a flexible swinging sheet is fixedly connected inside the water storage cavity through a rubber rod; through be equipped with the fin on the catheter, can make when air passes through the catheter, partial heat is taken away from the fin, realize that water-cooling and air-cooled simultaneous action cool down to motor body, and at the inside coolant liquid flow in-process of catheter, can strike flexible swing piece, make flexible swing piece bottom shake, and then the shake also can appear in the flexible swing piece of water storage intracavity portion, the inside coolant liquid in water storage intracavity portion will be promoted by flexible swing piece this moment, make the inside coolant liquid in water storage intracavity portion can exchange with the inside coolant liquid of catheter, the holistic cooling speed of catheter can be accelerated in this setting, the cooling speed of catheter to motor body has also been accelerated.

Furthermore, a support rod is fixedly connected to the side wall of the liquid guide pipe; the other end of the supporting rod is fixedly connected with the motor body, and the middle part of the supporting rod is fixedly connected with a telescopic cylinder; an air storage bag is fixedly connected to one end of the support rod, which is in contact with the motor body; a first air duct is communicated between the air storage bag and the rodless cavity of the telescopic cylinder; the output end of the telescopic cylinder is fixedly connected with a pressing plate; the position of the pressing plate corresponds to the side wall of the flexible heat conducting block; through having erect the multiunit bracing piece between catheter and motor body, can be when motor body's temperature is higher, the inside gas temperature of gas reservoir of heating, make the inside gas expansion of gas reservoir, the inside gas of gas reservoir will be led into the extra large no pole intracavity portion of telescoping cylinder through first air duct this moment, then the telescoping cylinder will press down the clamp plate on the lateral wall of flexible heat conduction piece, this setting can make the gap littleer between the flexible heat conduction piece with motor body contact, tightly press down on motor body with flexible heat conduction piece simultaneously, can make the seam and the recess contact of flexible heat conduction piece and motor body inseparabler, make flexible heat conduction piece can be with the better conduction to catheter department of the heat on the motor body, and then can make the heat on the motor body derive by more efficient.

Furthermore, one side of the pressing plate, which is close to the flexible heat conducting block, is provided with elastic multi-section hinged sheets; a first air bag is fixedly connected between the elastic multi-section hinge sheet and the pressing plate; a plurality of groups of second air bags are fixedly connected between the elastic multi-section hinge pieces and the pressing plate; a second air duct is communicated between the first air bag and the second air bag; through being equipped with first gasbag on pressing the pressure board, can press the flexible heat conduction piece according to the pressure board, first gasbag can receive the extrusion earlier, inside gas of first gasbag can enter into the second gasbag through the second air duct this moment inside, should set up can make the articulated piece of elasticity multistage softer with the contact of flexible heat conduction piece press, reduce according to pressure board and flexible heat conduction piece direct contact and to the injury that flexible heat conduction piece caused, increase the life of flexible heat conduction piece.

Furthermore, a group of elastic pull ropes is fixedly connected to the end part of the elastic multi-section hinged sheet; the group of elastic pull ropes are connected with the supporting rod by bypassing the pressing plate; through be connected with the elasticity stay cord between articulated piece of elasticity multistage and bracing piece, can make the articulated piece of elasticity multistage can not appear the condition of rocking at will on pressing the pressure board, increase the stability of the articulated piece of elasticity multistage on pressing the pressure board, make inside gas of first gasbag can be even when first gasbag receives the extrusion filled inside the second gasbag.

Furthermore, the elasticity of the elastic pull rope close to one side of the liquid guide pipe is smaller than that of the elastic pull rope far away from one side of the liquid guide pipe; establish to one big or small through the elasticity with two elasticity stay cords, just can press the one side of the articulated piece of in-process elasticity multistage earlier with flexible heat conduction piece contact to flexible heat conduction piece according to the pressure board, then continuously press the in-process of moving according to the pressure board, will make the bubble between flexible heat conduction piece and the motor body extruded, and then increase the contact inseparable degree of flexible heat conduction piece and motor body, make flexible heat conduction piece have better heat-conduction.

The invention has the beneficial effects that:

1. the invention provides a super-capacitor-based electric vehicle motor driving system and method, wherein a protection module is arranged outside a driving module, when the driving module stops, a liquid guide pipe inside the protection module is filled with cooling liquid, at the moment, the liquid guide pipe can take away part of heat on a motor body, heat residue on the motor body is reduced when an electric vehicle stops, further, the cooling of the motor body can be accelerated, and at the moment, the aging speed of components of the motor body can be slowed down.

2. Through being equipped with the spiral water conservancy diversion piece in the catheter inside, make the coolant liquid rotatory flowing in the catheter inside, will make the coolant liquid fully contact with the hotter side of catheter, make rotatory coolant liquid more high-efficient than the coolant liquid that directly flows, and then make the inside coolant liquid of catheter take away the heat on the motor body with higher speed.

3. Through being equipped with flexible heat conduction piece between catheter and motor body, can make the heat on the motor body conduct to catheter department through flexible heat conduction piece, the flexible heat conduction piece that is equipped with moreover is greater than catheter and motor body direct area of contact, can make the inside coolant liquid of catheter take away more heats, further accelerates the cooling rate of catheter to motor body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a system flow diagram of the present invention;

FIG. 2 is a flow chart of a method of the present invention;

FIG. 3 is a schematic view of the structure of the motor;

figure 4 is a schematic cross-sectional view of a catheter;

FIG. 5 is a schematic view of the structure of the swing piece;

FIG. 6 is an enlarged view of a portion of FIG. 4 at A;

illustration of the drawings:

1. a motor body; 11. a catheter; 12. a spiral flow deflector; 2. a flexible heat conducting block; 21. a flow guide pipe; 3. a liquid guide sheet; 4. a heat sink; 41. a water storage cavity; 42. a flexible oscillating piece; 5. a support bar; 51. a telescopic cylinder; 52. a gas storage bag; 53. a first air duct; 54. a pressing plate; 6, elastic multi-section hinged sheets; 61. a first air bag; 62. a second air bag; 63. a second air duct; 64. an elastic pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Specific examples are given below.

Referring to fig. 1, the present invention provides a super capacitor-based electric vehicle motor driving system, which includes a central processing unit module, a power supply module, a driving module and a protection module; the central processing unit module is in signal connection with the driving module; the power supply module is in signal connection with the central processor module, and simultaneously supplies power to the central processor module;

the power supply module is electrically connected with the driving module;

the protection module is connected with the driving module, and a liquid guide pipe 11 in the protection module can control the temperature of the driving module; the liquid guide pipe 11 in the protection module is connected with a heat dissipation device with a water pump; through being equipped with protection module in drive module's outside, can be when drive module shuts down, the inside catheter 11 of protection module will fill like the coolant liquid, and the part just can be taken away the heat on the motor body 1 to catheter 11 this moment, reduces electric automobile when parkking, and the heat on the motor body 1 is remained, and then can accelerate motor body 1's cooling, just can slow down the ageing speed of motor body 1 components and parts this moment.

The central processing unit module can control the power supply voltage of the power supply module to the driving module.

Please refer to fig. 2-6; a super capacitor-based electric vehicle motor driving method is applicable to the super capacitor-based electric vehicle motor driving system, and comprises the following steps:

s1: the power supply module is opened to supply power to the central processing unit module, and then the central processing unit module controls the power supply module to supply power to the driving module after being electrified, so that the driving module can normally run;

s2: the central processing unit module can control the power supply voltage of the power supply module to the driving module by issuing an instruction to the central processing unit module, so that the rotating speed and the torque output by the driving module can be controlled, and the electric automobile can have different running speeds;

s3: when the central processing unit module issues a parking instruction, the central processing unit module controls the power supply module to enable the power supply module to gradually reduce the voltage supplied to the driving module until the power supply module stops supplying power to the driving module, at the moment, the cooling liquid of the protection module is led in from one end of the liquid guide tube 11 under the action of the water pump and is discharged from the other end of the liquid guide tube 11 after flowing through the whole liquid guide tube 11, at the moment, the liquid guide tube 11 takes away heat on the motor body 1 of the driving module, and the protection of the protection module on the stopping of the driving module is realized.

The driving module comprises a motor body 1; a liquid guide pipe 11 is arranged in the middle of the motor body 1; the liquid guide pipe 11 is spirally wound on the motor body 1; the inner side wall of the liquid guide pipe 11 is fixedly connected with a spiral flow deflector 12; when the liquid guide tube 11 is filled with cooling liquid, in the process that the cooling liquid flows in the liquid guide tube 11, the liquid can flow in the liquid guide tube 11 in a rotating mode under the guiding of the spiral flow deflector 12 and is fully contacted with the liquid guide tube 11, and the heat of one side, close to the motor body 1, of the liquid guide tube 11 is higher, so that the spiral flow deflector 12 is arranged in the liquid guide tube 11, the cooling liquid flows in the liquid guide tube 11 in a rotating mode, the cooling liquid can be fully contacted with the hotter side of the liquid guide tube 11, the rotating cooling liquid is more efficient than the cooling liquid flowing directly, and the heat on the motor body 1 can be taken away by the cooling liquid in the liquid guide tube 11 in an accelerating mode.

A flexible heat conducting block 2 is arranged between the liquid guide tube 11 and the motor body 1; the flexible heat conducting block 2 is fixedly connected to the liquid guide pipe 11; a flow guide pipe 21 is fixedly connected inside the flexible heat conducting block 2; both ends of the flow guide pipe 21 are communicated with the liquid guide pipe 11; through being equipped with flexible heat conduction piece 2 between catheter 11 and motor body 1, can make the heat on the motor body 1 conduct to catheter 11 department through flexible heat conduction piece 2, the flexible heat conduction piece 2 that is equipped with in addition is greater than catheter 11 and the direct area of contact of motor body 1 with motor body 1's area of contact, can make the inside coolant liquid of catheter 11 take away more heats, further accelerates the cooling speed of catheter 11 to motor body 1.

The inner side wall of the liquid guide tube 11 is fixedly connected with a plurality of groups of liquid guide sheets 3; the liquid guide sheet 3 is arranged at the port of the draft tube 21; through being equipped with liquid guide piece 3 in the port department of honeycomb duct 21, can be at the inside coolant liquid of catheter 11 at the rotatory in-process that flows, with liquid leading-in to honeycomb duct 21 inside, make the inside liquid velocity of flow of honeycomb duct 21 also can increase, and then promote the heat exchange speed of flexible heat conduction piece 2 and coolant, will accelerate the cooling rate of catheter 11 to motor body 1 this moment.

A plurality of groups of radiating fins 4 are fixedly connected to the middle part of the liquid guide pipe 11; a water storage cavity 41 is formed in the radiating fin 4; the water storage cavity 41 is communicated with the liquid guide pipe 11; a flexible swinging sheet 42 is fixedly connected inside the water storage cavity 41 through a rubber rod; through be equipped with fin 4 on catheter 11, can make when air passes through catheter 11, partial heat is taken away from fin 4, effect is cooled down to motor body 1 when realizing water-cooling and forced air cooling, and at the inside coolant liquid of catheter 11 in-process that flows, can strike flexible swing piece 42, make flexible swing piece 42 bottom take place the shake, and then shake also can appear in the inside flexible swing piece 42 of water storage chamber 41, the inside coolant liquid of water storage chamber 41 will be promoted by flexible swing piece 42 this moment, make the inside coolant liquid of water storage chamber 41 can exchange with the inside coolant liquid of catheter 11, the holistic cooling speed of catheter 11 can be accelerated in this setting, the cooling speed of catheter 11 to motor body 1 has also been accelerated.

The side wall of the liquid guide pipe 11 is fixedly connected with a support rod 5; the other end of the support rod 5 is fixedly connected with the motor body 1, and the middle part of the support rod 5 is fixedly connected with a telescopic cylinder 51; an air storage bag 52 is fixedly connected to one end of the support rod 5, which is in contact with the motor body 1; a first air duct 53 is communicated between the air storage bag 52 and the rodless cavity of the telescopic cylinder 51; the output end of the telescopic cylinder 51 is fixedly connected with a pressing plate 54; the position of the pressing plate 54 corresponds to the side wall of the flexible heat conducting block 2; by arranging a plurality of support rods 5 between the liquid guide tube 11 and the motor body 1, when the temperature of the motor body 1 is higher, the temperature of the gas in the gas storage bag 52 is heated to expand the gas in the gas storage bag 52, at this time, the gas in the gas storage bag 52 is guided into the rod-free cavity of the telescopic cylinder 51 through the first gas guide pipe 53, then the telescopic cylinder 51 presses the pressing plate 54 on the side wall of the flexible heat conducting block 2, the arrangement can make the gap between the flexible heat-conducting blocks 2 contacted with the motor body 1 smaller, and simultaneously, the flexible heat-conducting blocks 2 are tightly pressed on the motor body 1, can make flexible heat conduction piece 2 inseparabler with motor body 1's seam and recess contact, make flexible heat conduction piece 2 can be with the better conduction to catheter 11 department of the heat on the motor body 1, and then can make the heat on the motor body 1 derive by the efficient more.

One side of the pressing plate 54 close to the flexible heat conducting block 2 is provided with an elastic multi-section hinged sheet 6; a first air bag 61 is fixedly connected between the elastic multi-section hinged sheet 6 and the pressing plate 54; a plurality of groups of second air bags 62 are fixedly connected between the elastic multi-section hinged sheets 6 and the pressing plate 54; a second air duct 63 is communicated between the first air bag 61 and the second air bag 62; through being equipped with first gasbag 61 on according to pressure board 54, can press flexible heat conduction piece 2 according to pressure board 54, first gasbag 61 can receive the extrusion earlier, the inside gas of first gasbag 61 can enter into inside second gasbag 62 through second air duct 63 this moment, this setting can make the articulated piece of elasticity multistage 6 softer press with flexible heat conduction piece 2 contact, reduce according to pressure board 54 and flexible heat conduction piece 2 direct contact and to the injury that flexible heat conduction piece 2 caused, increase the life of flexible heat conduction piece 2.

A group of elastic pull ropes 64 is fixedly connected to the end part of the elastic multi-section hinged sheet 6; the group of elastic pull ropes 64 are connected with the supporting rod 5 by bypassing the pressing plate 54; through being connected with elasticity stay cord 64 between articulated piece 6 of elasticity multistage and bracing piece 5, can make the articulated piece 6 of elasticity multistage can not appear the condition of rocking at will on pressing the clamp plate 54, increase the stability of articulated piece 6 of elasticity multistage on pressing the clamp plate 54, the inside gas of first gasbag 61 can be even when making first gasbag 61 receive the extrusion is filled inside second gasbag 62.

Example two

Comparative example one, as another embodiment of the present invention, the elastic force of the elastic pulling rope 64 near the side of the liquid guiding tube 11 is smaller than the elastic force of the elastic pulling rope 64 far from the side of the liquid guiding tube 11; establish to one big or little through the elasticity with two elasticity stay cords 64, just can press the in-process elasticity multistage articulated piece 6 that the pressing plate 54 pressed to flexible heat conduction piece 2 one side earlier with flexible heat conduction piece 2 contact, then the in-process of pressing the continuous pressure of pressing plate 54 and moving, will make the bubble between flexible heat conduction piece 2 and the motor body 1 extruded, and then increase the inseparable degree of contact of flexible heat conduction piece 2 and motor body 1, make flexible heat conduction piece 2 have better heat-conduction.

The working principle is as follows: when the liquid guide tube 11 is filled with cooling liquid, in the process that the cooling liquid flows in the liquid guide tube 11, the liquid can flow in the liquid guide tube 11 in a rotating manner under the guidance of the spiral flow deflector 12 and is fully contacted with the liquid guide tube 11, and the heat of one side of the liquid guide tube 11 close to the motor body 1 is higher, so that the cooling liquid can flow in the liquid guide tube 11 in a rotating manner by arranging the spiral flow deflector 12 in the liquid guide tube 11, the cooling liquid can be fully contacted with the hotter side of the liquid guide tube 11, the rotating cooling liquid is more efficient than the directly flowing cooling liquid, and the cooling liquid in the liquid guide tube 11 can take away the heat on the motor body 1 at an accelerated speed; the flexible heat conducting block 2 is arranged between the liquid guide tube 11 and the motor body 1, so that heat on the motor body 1 can be conducted to the liquid guide tube 11 through the flexible heat conducting block 2, the contact area of the flexible heat conducting block 2 and the motor body 1 is larger than the direct contact area of the liquid guide tube 11 and the motor body 1, more heat can be taken away by cooling liquid in the liquid guide tube 11, and the cooling speed of the liquid guide tube 11 to the motor body 1 is further accelerated; by arranging the liquid guide sheet 3 at the port of the guide pipe 21, liquid can be guided into the guide pipe 21 in the process that the cooling liquid in the liquid guide pipe 11 rotationally flows, so that the flow velocity of the liquid in the guide pipe 21 is increased, the heat exchange speed of the flexible heat conduction block 2 and the cooling liquid is further increased, and the cooling speed of the liquid guide pipe 11 to the motor body 1 is accelerated at the moment; by arranging the radiating fins 4 on the liquid guide tube 11, when air passes through the liquid guide tube 11, partial heat is taken away from the radiating fins 4, the motor body 1 is cooled by water cooling and air cooling, and in the flowing process of the cooling liquid in the liquid guide tube 11, the flexible swinging pieces 42 are impacted, so that the bottoms of the flexible swinging pieces 42 are shaken, further the flexible swinging pieces 42 in the water storage cavity 41 are shaken, and the cooling liquid in the water storage cavity 41 is pushed by the flexible swinging pieces 42, so that the cooling liquid in the water storage cavity 41 is exchanged with the cooling liquid in the liquid guide tube 11, the arrangement can accelerate the overall cooling speed of the liquid guide tube 11, and the cooling speed of the liquid guide tube 11 on the motor body 1 is also accelerated; by arranging a plurality of support rods 5 between the liquid guide tube 11 and the motor body 1, when the temperature of the motor body 1 is higher, the temperature of the gas in the gas storage bag 52 is heated to expand the gas in the gas storage bag 52, at this time, the gas in the gas storage bag 52 is guided into the rod-free cavity of the telescopic cylinder 51 through the first gas guide pipe 53, then the telescopic cylinder 51 presses the pressing plate 54 on the side wall of the flexible heat conducting block 2, the arrangement can make the gap between the flexible heat-conducting blocks 2 contacted with the motor body 1 smaller, and simultaneously, the flexible heat-conducting blocks 2 are tightly pressed on the motor body 1, the flexible heat conducting block 2 can be in closer contact with the seam and the groove of the motor body 1, so that the flexible heat conducting block 2 can conduct heat on the motor body 1 to the liquid guide tube 11 better, and further the heat on the motor body 1 can be led out more efficiently; through arranging the first air bag 61 on the pressing plate 54, when the pressing plate 54 presses the flexible heat conducting block 2, the first air bag 61 can be firstly extruded, at the moment, air in the first air bag 61 can enter the second air bag 62 through the second air duct 63, the elastic multi-section hinge sheet 6 can be more softly contacted and pressed with the flexible heat conducting block 2 through the arrangement, the damage to the flexible heat conducting block 2 caused by the direct contact of the pressing plate 54 and the flexible heat conducting block 2 is reduced, and the service life of the flexible heat conducting block 2 is prolonged; the elastic pull rope 64 is connected between the elastic multi-section hinged sheet 6 and the supporting rod 5, so that the elastic multi-section hinged sheet 6 cannot shake randomly on the pressing plate 54, the stability of the elastic multi-section hinged sheet 6 on the pressing plate 54 is improved, and when the first air bag 61 is extruded, the gas in the first air bag 61 can be uniformly filled into the second air bag 62; establish to one big or little through the elasticity with two elasticity stay cords 64, just can press the in-process elasticity multistage articulated piece 6 that the pressing plate 54 pressed to flexible heat conduction piece 2 one side earlier with flexible heat conduction piece 2 contact, then the in-process of pressing the continuous pressure of pressing plate 54 and moving, will make the bubble between flexible heat conduction piece 2 and the motor body 1 extruded, and then increase the inseparable degree of contact of flexible heat conduction piece 2 and motor body 1, make flexible heat conduction piece 2 have better heat-conduction.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.