Stator winding anti-aging heat dissipation device of ducted fan inner rotor motor

Abstract

The application provides a stator winding anti-aging heat dissipation device of a ducted fan inner rotor motor, relates to the technical field of motor winding heat dissipation, and comprises a ducted fan, a detection control element, an auxiliary heat dissipation element and a pre-warning element; the auxiliary heat dissipation element is used for cooling the motor winding of the ducted fan; the detection control element is installed on the ducted fan and is used for detecting the temperature at the motor winding of the ducted fan, and the detection control element is also used for controlling the auxiliary heat dissipation element; the pre-warning element is used for prompting a worker to maintain the ducted fan; through three technical systems of detection control, automatic heat dissipation and state correlation pre-warning, the application solves the problem of passive lag of traditional stator winding heat dissipation, fills the blank of mismatching of maintenance time and working state through a pre-warning mechanism, and finally realizes the anti-aging of the stator winding of the ducted fan inner rotor motor and the long-term stable operation of the stator winding.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of motor winding heat dissipation, and more particularly relates to a stator winding anti-aging heat dissipation device of a ducted fan inner rotor motor. BACKGROUND

[0002] The core reason for the heat dissipation of the winding of the ducted fan motor is that when current passes through the winding, Joule heat is generated due to resistance, and the iron core eddy current loss is caused by the alternating magnetic field, both of which are converted into heat; if the heat accumulates, the insulation material will accelerate aging, the resistance will increase to further reduce the efficiency, and even cause the winding to burn out; the temperature rise is controlled within the B-class insulation limit value through the heat dissipation device, so that the performance and service life of the motor can be maintained, and faults caused by local overheating can be avoided.

[0003] The currently used motor winding heat dissipation device still has the following problems: 1. lacking a shielding protection structure, resulting in that the control buttons are prone to accidental touch, and the ducted fan will loosen after being installed by screws; 2. when the temperature at the motor winding is high, the motor winding cannot be automatically cooled, reducing the service life of the ducted fan; 3. lacking a maintenance warning function, which is not convenient for workers to maintain the ducted fan in time, and the maintenance time cannot be automatically adjusted according to the working state. SUMMARY

[0004] The stator winding anti-aging heat dissipation device of the ducted fan inner rotor motor provided by the embodiment of the present disclosure has a detection control piece, an auxiliary heat dissipation piece and a warning prompt piece; the setting of the L-shaped anti-touch frame plays a role in preventing accidental touch of a row of control buttons on the control panel; the setting of the two arc-shaped connecting frames and the two U-shaped limiting frames plays a role in limiting and blocking four mounting screws on the ducted fan; the air entering the three movable flow guide boxes can enter the three arc-shaped heat dissipation covers through the six heat dissipation hoses, and then be discharged through the six circular exhaust pipes, thereby playing an automatic heat dissipation effect on the motor winding of the ducted fan; when the timing value on the control panel reaches the set range, the alarm on the control panel works, which can automatically prompt the worker to maintain the ducted fan, thereby reducing the sudden failure shutdown situation; the problems of accidental touch of the control buttons, loosening of the ducted fan after being installed by screws, inability to automatically cool the motor winding and inability to automatically adjust the maintenance time according to the working state are solved.

[0005] The application provides a stator winding anti-aging heat dissipation device of a ducted fan inner rotor motor, which comprises a ducted fan, a detection control element, an auxiliary heat dissipation element and a pre-warning element; the auxiliary heat dissipation element is installed on the ducted fan and is used for cooling the motor winding of the ducted fan; the pre-warning element is installed on the ducted fan and the auxiliary heat dissipation element and is used for prompting a worker to maintain the ducted fan; the detection control element is installed on the ducted fan and is used for detecting the temperature at the motor winding of the ducted fan and controlling the auxiliary heat dissipation element.

[0006] In at least some embodiments, the detection control element comprises an L-shaped anti-touch frame, a rectangular guide rod and a control panel; the L-shaped anti-touch frame is fixedly installed on the top of the ducted fan; the rectangular guide rod is slidingly installed on the L-shaped anti-touch frame; and the control panel is fixedly installed on the right side of the rectangular guide rod and is provided with a display screen, an alarm and a row of control buttons.

[0007] In at least some embodiments, the detection control element further comprises a temperature sensor, an arc-shaped connecting frame and a U-shaped limiting frame; the temperature sensor is fixedly installed on the ducted fan, the detection head of the temperature sensor is in contact with the winding of the motor of the ducted fan, and the temperature sensor is electrically connected with the control panel; the arc-shaped connecting frame is provided with two, and the two arc-shaped connecting frames are fixedly installed on the front and back of the control panel; the U-shaped limiting frame is provided with two, and the two U-shaped limiting frames are fixedly installed on the bottom of the two arc-shaped connecting frames, and the two U-shaped limiting frames are further in contact with the four mounting screws on the ducted fan.

[0008] In at least some embodiments, the detection control element further comprises a circular limiting ring and a spiral spring a; the circular limiting ring is fixedly installed on the left end of the rectangular guide rod; and the spiral spring a is sleeved on the outside of the rectangular guide rod and is located between the L-shaped anti-touch frame and the circular limiting ring.

[0009] In at least some embodiments, the auxiliary heat dissipation element is provided with three groups, and each group of the auxiliary heat dissipation element comprises an arc-shaped heat dissipation cover, a circular exhaust pipe and a rectangular guide frame; the arc-shaped heat dissipation cover is fixedly installed on the ducted fan; the circular exhaust pipe is provided with two, and the two circular exhaust pipes are fixedly installed on the right side of the arc-shaped heat dissipation cover; and the rectangular guide frame is fixedly installed on the ducted fan and is provided with a receiving groove.

[0010] In at least some embodiments, the auxiliary heat dissipation element further comprises a movable flow guide box and a heat dissipation hose; the movable flow guide box is slidingly installed in the inside of the rectangular guide frame; the heat dissipation hose is provided with two, and the right ends of the two heat dissipation hoses are fixedly connected with the arc-shaped heat dissipation cover, and the left ends of the two heat dissipation hoses are fixedly connected with the movable flow guide box.

[0011] In at least some embodiments, the auxiliary heat dissipation member further comprises: a mounting bracket and an electric telescopic rod; the mounting bracket is fixedly installed on the rectangular guide frame; the electric telescopic rod is installed on the mounting bracket, and the output shaft of the electric telescopic rod is fixedly connected with the movable guide box, and the electric telescopic rod is electrically connected with the control panel.

[0012] In at least some embodiments, the early warning prompt member comprises: three circular guide rods, a movable detection frame and three spiral springs b; the three circular guide rods are fixedly installed on the duct fan; the movable detection frame is slidably installed on the three circular guide rods; the three spiral springs b are sleeved outside the three circular guide rods, and the three spiral springs b are located on the right side of the movable detection frame.

[0013] In at least some embodiments, the early warning prompt member further comprises: a rectangular strip, a circular stabilizing shaft and a timing switch a; the rectangular strip is fixedly installed on the duct fan; the circular stabilizing shaft is fixedly installed on the right side of the movable detection frame, and the circular stabilizing shaft is also slidably connected with the rectangular strip; the timing switch a is installed on the circular stabilizing shaft, and the timing switch a is electrically connected with the control panel.

[0014] In at least some embodiments, the early warning prompt member further comprises: an auxiliary pressing block and a timing switch b; the auxiliary pressing block is fixedly installed on the timing switch a; the timing switch b is fixedly installed on the movable guide box below, and the timing switch b is electrically connected with the control panel, and the right end of the timing switch b is located in the storage groove.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] 1. The temperature sensor of the application plays a real-time monitoring role on the temperature of the duct fan motor winding, and the temperature sensor can transmit the monitored temperature data to the control panel; the L-shaped anti-touch frame plays a mistake-proofing role on the row of control buttons on the control panel;

[0017] In addition, the two arc-shaped connecting frames and the two U-shaped limiting frames play a limiting and blocking role on the four mounting screws on the duct fan, so that the duct fan is always in a stable state after installation; the spiral spring a plays an elastic limiting role on the control panel; when an arc-shaped connecting frame is pulled by a worker, a row of control buttons on the control panel is moved out of the L-shaped anti-touch frame, which facilitates the worker to press the corresponding control button, and the two U-shaped limiting frames are separated from the four mounting screws on the duct fan, which facilitates the disassembly and installation of the four mounting screws.

[0018] 2. In this application, when the temperature detected by the temperature sensor is higher than the set temperature, the control panel controls the output shafts of the three electric telescopic rods to extend; when the output shafts of the three electric telescopic rods extend, air can enter the three movable air guide boxes;

[0019] In addition, the air entering the three movable air guide boxes can enter the three arc-shaped heat dissipation shrouds through six heat dissipation hoses, and then be discharged through six circular exhaust pipes, which has an automatic heat dissipation effect on the windings of the ducted fan motor. When the temperature detected by the temperature sensor is lower than the set temperature, the control panel controls the output shaft of the three electric telescopic rods to retract, at which point air no longer enters the three movable air guide boxes.

[0020] 3. When the ducted fan is working, the airflow generated by this application can push the movable testing frame to slide to the right; the rectangular strip and the circular stabilizing shaft play a guiding role for the movable testing frame, making the movable testing frame more stable.

[0021] Furthermore, when the active testing frame slides to the right under the influence of airflow, the rectangular strip presses the auxiliary pressing block, causing timer switch a to be pressed. When timer switch a is pressed, the numbers on the control panel display continuously increase. When the output shafts of the three electric telescopic rods extend, timer switch b is pressed. When timer switch b is pressed, the numbers on the control panel display continuously increase. When both timer switches a and b are pressed, the rate of increase of the numbers on the control panel display doubles. When the timing value on the control panel reaches the set range, the alarm on the control panel activates, automatically prompting staff to maintain the ducted fan and reducing unexpected downtime due to malfunctions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of this application and are not intended to limit the scope of this application.

[0024] In the attached diagram:

[0025] Figure 1 A three-dimensional structural schematic diagram of this application is shown;

[0026] Figure 2 This application shows Figure 1 A schematic diagram of the structure from the right side perspective;

[0027] Figure 3 A schematic diagram of the ducted fan and detection control components of this application is shown;

[0028] Figure 4 This application shows Figure 1Local enlarged structure diagram of area A in the middle;

[0029] Figure 5 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 1 Local enlarged structure diagram of area B in the middle;

[0030] Figure 6 The structure diagram of the auxiliary heat dissipation member of the application is shown.

[0031] Figure 7 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 6 Local enlarged structure diagram of area C in the middle;

[0032] Figure 8 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 2 Local enlarged structure diagram of area D in the middle;

[0033] Figure 9 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 1 Local center cut structure diagram of the application;

[0034] Figure 10 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 9 Local enlarged structure diagram of area E in the middle;

[0035] Figure 11 The structure diagram of the auxiliary heat dissipation member of the application is shown. Figure 9 Local enlarged structure diagram of area F in the middle.

[0036] List of reference signs:

[0037] 100, duct fan;

[0038] 200, detection control member; 201, L-shaped anti-touch frame; 202, rectangular guide rod; 203, control panel; 204, temperature sensor; 205, arc-shaped connecting frame; 206, U-shaped limiting frame; 207, circular limiting ring; 208, spiral spring a;

[0039] 300, auxiliary heat dissipation member; 301, arc-shaped heat dissipation cover; 302, circular exhaust pipe; 303, rectangular guide frame; 3031, storage groove; 304, movable flow guide box; 305, heat dissipation hose; 306, mounting bracket; 307, electric telescopic rod;

[0040] 400, early warning prompt member; 401, circular guide rod; 402, movable detection frame; 403, spiral spring b; 404, rectangular strip plate; 405, circular stabilizing shaft; 406, timing switch a; 407, auxiliary pressing block; 408, timing switch b. DETAILED DESCRIPTION

[0041] In order to make the purpose, scheme and advantages of the technical solutions of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly understood in the art. The same reference numerals in the drawings represent the same components.

[0042] Embodiment: Please refer to Figures 1 to 11 As shown in the drawings: the present application provides a stator winding anti-aging heat dissipation device of a ducted fan inner rotor motor, comprising: a ducted fan 100, a detection control part 200, an auxiliary heat dissipation part 300 and a warning prompt part 400; the auxiliary heat dissipation part 300 is installed on the ducted fan 100, and the auxiliary heat dissipation part 300 is used for cooling the motor winding of the ducted fan 100; the warning prompt part 400 is installed on the ducted fan 100 and the auxiliary heat dissipation part 300, and the warning prompt part 400 is used for prompting the staff to maintain the ducted fan 100; the detection control part 200 is installed on the ducted fan 100, and the detection control part 200 is used for detecting the temperature at the motor winding of the ducted fan 100, and the detection control part 200 is also used for controlling the auxiliary heat dissipation part 300.

[0043] As shown in the drawings, Figures 3 to 5 The detection control part 200 comprises: an L-shaped anti-touch frame 201, a rectangular guide rod 202 and a control panel 203; the L-shaped anti-touch frame 201 is fixedly installed on the top of the ducted fan 100; the rectangular guide rod 202 is slidingly installed on the L-shaped anti-touch frame 201; the control panel 203 is fixedly installed on the right side of the rectangular guide rod 202, and a display screen, an alarm and a row of control buttons are arranged on the control panel 203; the detection control part 200 further comprises: a temperature sensor 204, an arc-shaped connecting frame 205 and a U-shaped limiting frame 206; the temperature sensor 204 is fixedly installed on the ducted fan 100, the detection head of the temperature sensor 204 is in contact with the winding of the motor of the ducted fan 100, and the temperature sensor 204 is electrically connected with the control panel 203; the arc-shaped connecting frame 205 is provided in two, and the two arc-shaped connecting frames 205 are fixedly installed on the front and back of the control panel 203; the U-shaped limiting frame 206 is provided in two, and the two U-shaped limiting frames 206 are fixedly installed on the bottom of the two arc-shaped connecting frames 205, and the two U-shaped limiting frames 206 are also in contact with the four mounting screws on the ducted fan 100; the detection control part 200 further comprises: a circular limiting ring 207 and a spiral spring a 208; the circular limiting ring 207 is fixedly installed on the left end of the rectangular guide rod 202; the spiral spring a 208 is sleeved outside the rectangular guide rod 202, and the spiral spring a 208 is located between the L-shaped anti-touch frame 201 and the circular limiting ring 207;

[0044] Specific functions are as follows: the temperature sensor 204 is fixedly installed on the ducted fan 100, the detection head of the temperature sensor 204 is in contact with the winding of the motor of the ducted fan 100, and the temperature sensor 204 is electrically connected with the control panel 203, so that the temperature of the winding of the motor of the ducted fan 100 is monitored in real time, and the temperature sensor 204 can transmit the monitored temperature data to the control panel 203; and the L-shaped anti-touch frame 201 is fixedly installed on the top of the ducted fan 100, and a row of control buttons on the control panel 203 is below the L-shaped anti-touch frame 201, so that the row of control buttons on the control panel 203 is prevented from being touched by mistake;

[0045] In addition, the two arc-shaped connecting frames 205 are fixedly installed on the front and back of the control panel 203, the two U-shaped limiting frames 206 are fixedly installed on the bottom of the two arc-shaped connecting frames 205, the two U-shaped limiting frames 206 are in contact with the four mounting screws on the ducted fan 100, and the four mounting screws on the ducted fan 100 are limited and blocked, so that the ducted fan 100 is always in a stable state after installation; the circular limiting ring 207 is fixedly installed on the left end of the rectangular guide rod 202, the spiral spring a 208 is sleeved outside the rectangular guide rod 202, and the spiral spring a 208 is located between the L-shaped anti-touch frame 201 and the circular limiting ring 207, so that the control panel 203 is elastically limited; when an operator pulls one of the arc-shaped connecting frames 205, a row of control buttons on the control panel 203 is moved out of the L-shaped anti-touch frame 201, the corresponding control button is pressed, the two U-shaped limiting frames 206 are separated from the four mounting screws on the ducted fan 100, and the four mounting screws are convenient to disassemble and install.

[0046] In the embodiments of the present disclosure, as shown in Figures 6 to 8As shown, the auxiliary heat dissipation piece 300 can be provided with at least one group according to the power specification of the duct fan and the heat dissipation requirement, and three groups are preferably provided to achieve balanced heat dissipation effect. Each group of auxiliary heat dissipation piece 300 includes: an arc-shaped heat dissipation cover 301, a circular exhaust pipe 302, and a rectangular guide frame 303; the arc-shaped heat dissipation cover 301 is fixedly installed on the duct fan 100; the circular exhaust pipe 302 is provided with two, and the two circular exhaust pipes 302 are fixedly installed on the right side of the arc-shaped heat dissipation cover 301; the rectangular guide frame 303 is fixedly installed on the duct fan 100, and a receiving groove 3031 is formed in the rectangular guide frame 303; the auxiliary heat dissipation piece 300 further includes: a movable flow guide box 304 and a heat dissipation hose 305; the movable flow guide box 304 is slidably installed in the rectangular guide frame 303; the heat dissipation hose 305 is provided with two, and the right ends of the two heat dissipation hoses 305 are fixedly connected with the arc-shaped heat dissipation cover 301, and the left ends of the two heat dissipation hoses 305 are fixedly connected with the movable flow guide box 304; the auxiliary heat dissipation piece 300 further includes: a mounting bracket 306 and an electric telescopic rod 307; the mounting bracket 306 is fixedly installed on the rectangular guide frame 303; the electric telescopic rod 307 is installed on the mounting bracket 306, and the output shaft of the electric telescopic rod 307 is fixedly connected with the movable flow guide box 304, and the electric telescopic rod 307 is electrically connected with the control panel 203;

[0047] The specific action is: since the three electric telescopic rods 307 are installed on the three mounting brackets 306, and the output shafts of the three electric telescopic rods 307 are fixedly connected with the three movable flow guide boxes 304, and the three electric telescopic rods 307 are electrically connected with the control panel 203, when the temperature detected by the temperature sensor 204 is higher than the set temperature, the control panel 203 controls the output shafts of the three electric telescopic rods 307 to extend; and since the three rectangular guide frames 303 are fixedly installed on the duct fan 100, and the three movable flow guide boxes 304 are slidably installed in the three rectangular guide frames 303, when the output shafts of the three electric telescopic rods 307 extend, air can enter the three movable flow guide boxes 304;

[0048] In addition, since the six circular exhaust pipes 302 are fixedly installed on the right side of the three arc-shaped heat dissipation covers 301, and the right ends of the six heat dissipation hoses 305 are fixedly connected with the three arc-shaped heat dissipation covers 301, and the left ends of the six heat dissipation hoses 305 are fixedly connected with the three movable flow guide boxes 304, the air entering the three movable flow guide boxes 304 can enter the three arc-shaped heat dissipation covers 301 through the six heat dissipation hoses 305, and then be discharged through the six circular exhaust pipes 302, thereby achieving the automatic heat dissipation effect on the motor winding of the duct fan 100; when the temperature detected by the temperature sensor 204 is lower than the set temperature, the control panel 203 controls the output shafts of the three electric telescopic rods 307 to retract, at this time, air does not enter the three movable flow guide boxes 304.

[0049] In the embodiments of the present disclosure, as shown in Figure 8 , Figure 10 and Figure 11 , the early warning prompt 400 comprises three circular guide rods 401, a movable detection frame 402 and three spiral springs b 403; the three circular guide rods 401 are fixedly installed on the ducted fan 100; the movable detection frame 402 is slidingly installed on the three circular guide rods 401; the three spiral springs b 403 are sleeved outside the three circular guide rods 401, and the three spiral springs b 403 are located at the right side of the movable detection frame 402; the early warning prompt 400 further comprises a rectangular strip plate 404, a circular stabilizing shaft 405 and a timing switch a 406; the rectangular strip plate 404 is fixedly installed on the ducted fan 100; the circular stabilizing shaft 405 is fixedly installed at the right side of the movable detection frame 402, and the circular stabilizing shaft 405 is further slidingly connected with the rectangular strip plate 404; the timing switch a 406 is installed on the circular stabilizing shaft 405, and the timing switch a 406 is electrically connected with the control panel 203; the early warning prompt 400 further comprises an auxiliary pressing block 407 and a timing switch b 408; the auxiliary pressing block 407 is fixedly installed on the timing switch a 406; the timing switch b 408 is fixedly installed on the lower movable flow guide box 304, and the timing switch b 408 is electrically connected with the control panel 203, and the right end of the timing switch b 408 is located in the storage groove 3031;

[0050] The specific action is that because the movable detection frame 402 is slidingly installed on the three circular guide rods 401, and the three spiral springs b 403 are sleeved outside the three circular guide rods 401, and the three spiral springs b 403 are located at the right side of the movable detection frame 402, when the ducted fan 100 works, the airflow generated can push the movable detection frame 402 to slide to the right; and because the rectangular strip plate 404 is fixedly installed on the ducted fan 100, and the circular stabilizing shaft 405 is fixedly installed at the right side of the movable detection frame 402, and the circular stabilizing shaft 405 is further slidingly connected with the rectangular strip plate 404, the movable detection frame 402 is guided, so that the stability of the movable detection frame 402 is higher;

[0051] Moreover, since the timing switch a406 is installed on the circular stabilizing shaft 405, and the timing switch a406 is electrically connected with the control panel 203, and the auxiliary pressing block 407 is fixedly installed on the timing switch a406, when the movable detection frame 402 slides right under the action of the airflow, the rectangular strip plate 404 can press the auxiliary pressing block 407, so that the timing switch a406 is in the pressed state, when the timing switch a406 is in the pressed state, the number on the display screen of the control panel 203 continuously increases; again, since the timing switch b408 is fixedly installed on the movable flow guide box 304 below, and the timing switch b408 is electrically connected with the control panel 203, and the right end of the timing switch b408 is located in the storage recess 3031, when the output shaft of the three electric telescopic rods 307 is stretched out, the timing switch b408 is in the pressed state, when the timing switch b408 is in the pressed state, the number on the display screen of the control panel 203 continuously increases, when the timing switch a406 and the timing switch b408 are both in the pressed state, the number increasing speed on the display screen of the control panel 203 doubles, when the timing value on the control panel 203 reaches the set range, the alarm on the control panel 203 works, which can automatically prompt the staff to maintain the culvert fan 100, and reduce the sudden failure shutdown situation.

[0052] The specific use mode and role of the embodiment are as follows:

[0053] In use, the embodiment of the application first pulls one of the arc-shaped connecting frames 205 by the staff, and then fixes and installs the duct fan 100 through four mounting screws. After that, the arc-shaped connecting frame 205 is loosened, and the four mounting screws on the duct fan 100 play a limiting and blocking role, so that the duct fan 100 is always in a stable state after installation. The temperature sensor 204 plays a real-time monitoring role on the temperature at the motor winding of the duct fan 100, and the temperature sensor 204 can transmit the monitored temperature data to the control panel 203. When the temperature detected by the temperature sensor 204 is higher than the set temperature, the control panel 203 controls the output shaft of the three electric telescopic rods 307 to extend. When the output shaft of the three electric telescopic rods 307 extends, air can enter the three movable flow guide boxes 304. The air entering the three movable flow guide boxes 304 can enter the three arc-shaped heat sinks 301 through the six heat dissipation hoses 305, and then be discharged through the six circular exhaust pipes 302, thereby playing an automatic heat dissipation effect on the motor winding of the duct fan 100. When the temperature detected by the temperature sensor 204 is lower than the set temperature, the control panel 203 controls the output shaft of the three electric telescopic rods 307 to retract. At this time, air does not enter the three movable flow guide boxes 304. When the duct fan 100 works, the airflow generated can push the movable detection frame 402 to slide to the right. When the movable detection frame 402 slides to the right under the action of the airflow, the rectangular strip plate 404 can press the auxiliary pressing block 407, so that the timing switch a 406 is in a pressed state. When the timing switch a 406 is in a pressed state, the number on the display screen of the control panel 203 continuously increases. When the output shaft of the three electric telescopic rods 307 extends, the timing switch b 408 is in a pressed state. When the timing switch b 408 is in a pressed state, the number on the display screen of the control panel 203 continuously increases. When the timing switch a 406 and the timing switch b 408 are both in a pressed state, the number increasing speed on the display screen of the control panel 203 doubles. When the timing value on the control panel 203 reaches the set range, the alarm on the control panel 203 works, which can automatically prompt the staff to maintain the duct fan 100 and reduce the sudden failure shutdown situation.

[0054] Finally, the principle and effect of realizing the stator winding anti-aging of the inner rotor motor of the duct fan are described as follows by using the overall technical scheme of the application:

[0055] The application realizes the stator winding anti-aging through the synergistic effect of the three technical systems of detection control, automatic heat dissipation and state association early warning, specifically:

[0056] Through the real-time sensing winding temperature and mechanical installation stability detection control system, avoid the overheating aging caused by temperature blind area, prevent the vibration aggravating insulation wear; Specifically, through the temperature sensor 204 directly contacting the winding, the temperature data is transmitted to the control panel 203, the winding temperature rise state is captured in real time; The U-shaped limiting frame 206 is fixed through the arc-shaped connecting frame 205, which forms a physical barrier to the installation screw, prevents the vibration aggravation or heat dissipation gap change caused by screw loosening during equipment operation; And the L-shaped anti-touch frame 201 shields the control panel key, combined with the elastic limiting of the spiral spring a, it not only avoids misoperation but also facilitates quick unlocking during maintenance.

[0057] Further, combined with the automatic heat dissipation system triggered by temperature, when the temperature sensor detects that the winding temperature is higher than the set threshold, the control panel 203 instructs the electric telescopic rod 307 to extend, which triggers the mechanism that the movable flow guide box 304 slides along the rectangular guide frame 303, external air can enter the three movable flow guide boxes 304, and then is transported to the arc-shaped heat sink 301 through the heat dissipation hose 305, and finally is blown to the winding area through the circular exhaust pipe 302, forming forced convection heat dissipation, realizing active reduction of winding temperature to the safe interval, inhibiting the degradation of insulation materials caused by high temperature, such as avoiding oxidation of enameled wire and brittle of insulation layer; When the temperature is lower than the threshold, the electric telescopic rod is retracted, the movable flow guide box is reset to the storage groove, and the closed-loop control of active heat dissipation is stopped.

[0058] Further, through the state-related early warning system based on maintenance prompts of actual working load, prevent the cumulative aging of the ducted fan inner rotor motor caused by long-term high-load operation without timely maintenance, specifically, when the ducted fan is running, the airflow pushes the movable detection frame 402 to slide, the rectangular strip plate 404 presses the timing switch a 406, and the timing trigger logic of the basic timing is started, when the active heat dissipation is started, the movable flow guide box triggers the timing switch b 408, the timing speed is doubled, reflecting the high-load state; When the timing value reaches the set range, the control panel alarm starts, prompting the staff to maintain.

[0059] The present application realizes the anti-aging logic closed loop of the whole process control of temperature monitoring→active heat dissipation→load warning→maintenance intervention, realizes the ducted fan inner rotor motor from two dimensions of “source inhibition of high temperature” and “process avoidance of damage”: through real-time heat dissipation, the winding temperature is controlled within the B-class insulation limit (usually ≤130℃), directly delaying the source inhibition of insulation aging rate;

[0060] Through the state-related early warning, ensure that the equipment is maintained in time after high load, such as cleaning the heat dissipation channel and tightening the parts, avoid the sudden aging failure caused by the accumulation of hidden damage.

[0061] The application forms an overall technical scheme by combining three technical systems of detection control, automatic heat dissipation and state correlation early warning, solves the problem of traditional heat dissipation "passive lag", fills the blank of "maintenance time mismatching working state" through the early warning mechanism, and finally realizes long-term stable operation of the stator winding.

[0062] In this paper, the following points need attention:

[0063] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0064] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0065] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A stator winding anti-aging heat dissipation device for a ducted fan inner rotor electric machine, comprising: The application discloses a ducted fan (100), a detection control part (200), an auxiliary heat dissipation part (300) and a pre-warning part (400), wherein the auxiliary heat dissipation part (300) is provided with three groups, the three groups of auxiliary heat dissipation parts (300) are installed on the ducted fan (100), the auxiliary heat dissipation part (300) is used for cooling motor windings of the ducted fan (100), the pre-warning part (400) is installed on the ducted fan (100) and the auxiliary heat dissipation part (300), the pre-warning part (400) is used for prompting a worker to maintain the ducted fan (100), the detection control part (200) is installed on the ducted fan (100), the detection control part (200) is used for detecting the temperature at the motor windings of the ducted fan (100), and the detection control part (200) is also used for controlling the auxiliary heat dissipation part (300). The auxiliary heat dissipation part (300) comprises an arc-shaped heat dissipation cover (301), a circular exhaust pipe (302) and a rectangular guide frame (303), the arc-shaped heat dissipation cover (301) is fixedly installed on the ducted fan (100), the circular exhaust pipe (302) is provided with two, the two circular exhaust pipes (302) are fixedly installed on the right side of the arc-shaped heat dissipation cover (301), and the rectangular guide frame (303) is fixedly installed on the ducted fan (100) and is provided with a receiving groove (3031). The auxiliary heat dissipation part (300) further comprises a movable flow guide box (304) and a heat dissipation hose (305), the movable flow guide box (304) is slidably installed in the rectangular guide frame (303), the heat dissipation hose (305) is provided with two, the right ends of the two heat dissipation hoses (305) are fixedly connected with the arc-shaped heat dissipation cover (301), and the left ends of the two heat dissipation hoses (305) are fixedly connected with the movable flow guide box (304). The auxiliary heat dissipation part (300) further comprises a mounting bracket (306) and an electric telescopic rod (307), the mounting bracket (306) is fixedly installed on the rectangular guide frame (303), the electric telescopic rod (307) is installed on the mounting bracket (306), the output shaft of the electric telescopic rod (307) is fixedly connected with the movable flow guide box (304), and the electric telescopic rod (307) is electrically connected with a control panel (203). The pre-warning part (400) comprises a circular guide rod (401), a movable detection frame (402) and a spiral spring b (403), the circular guide rod (401) is provided with three, the three circular guide rods (401) are fixedly installed on the ducted fan (100), the movable detection frame (402) is slidably installed on the three circular guide rods (401), and the spiral spring b (403) is provided with three, the three spiral springs b (403) are sleeved outside the three circular guide rods (401), and the three spiral springs b (403) are located on the right side of the movable detection frame (402).

2. The stator winding anti-aging heat sink for an inner rotor electric machine of a ducted fan according to claim 1, characterized in that, The detection control piece (200) comprises an L-shaped anti-touch frame (201), a rectangular guide rod (202) and a control panel (203); the L-shaped anti-touch frame (201) is fixedly installed on the top of the ducted fan (100); the rectangular guide rod (202) is slidingly installed on the L-shaped anti-touch frame (201); the control panel (203) is fixedly installed on the right side of the rectangular guide rod (202), and a display screen, an alarm and a row of control buttons are arranged on the control panel (203).

3. The stator winding anti-aging heat sink for an inner rotor electric machine of a ducted fan according to claim 2, characterized in that, The detection control piece (200) further comprises a temperature sensor (204), an arc-shaped connecting frame (205) and a U-shaped limiting frame (206); the temperature sensor (204) is fixedly installed on the ducted fan (100), the detection head of the temperature sensor (204) is in contact with the winding of the motor of the ducted fan (100), and the temperature sensor (204) is electrically connected with the control panel (203); the arc-shaped connecting frame (205) is provided with two, and the two arc-shaped connecting frames (205) are fixedly installed on the front and back of the control panel (203); the U-shaped limiting frame (206) is provided with two, and the two U-shaped limiting frames (206) are fixedly installed on the bottom of the two arc-shaped connecting frames (205), and the two U-shaped limiting frames (206) are further in contact with the four mounting screws on the ducted fan (100).

4. The stator winding anti-aging heat sink for an inner rotor electric machine of a ducted fan according to claim 3, characterized in that, The detection control piece (200) further comprises a circular limiting ring (207) and a spiral spring a (208); the circular limiting ring (207) is fixedly installed on the left end of the rectangular guide rod (202); the spiral spring a (208) is sleeved on the outside of the rectangular guide rod (202), and the spiral spring a (208) is located between the L-shaped anti-touch frame (201) and the circular limiting ring (207).

5. The stator winding anti-aging heat sink for an in-rotor electric machine of a ducted fan according to claim 1, characterized in that, The early warning prompting piece (400) further comprises a rectangular strip plate (404), a circular stabilizing shaft (405) and a timing switch a (406); the rectangular strip plate (404) is fixedly installed on the ducted fan (100); the circular stabilizing shaft (405) is fixedly installed on the right side of the movable detection frame (402), and the circular stabilizing shaft (405) is further slidingly connected with the rectangular strip plate (404); the timing switch a (406) is installed on the circular stabilizing shaft (405), and the timing switch a (406) is electrically connected with the control panel (203).

6. The stator winding anti-aging heat sink for an inner rotor electric machine of a ducted fan according to claim 5, characterized in that, The early warning prompting piece (400) further comprises an auxiliary pressing block (407) and a timing switch b (408); the auxiliary pressing block (407) is fixedly installed on the timing switch a (406); the timing switch b (408) is fixedly installed on the movable flow guide box (304) below, and the timing switch b (408) is electrically connected with the control panel (203), and the right end of the timing switch b (408) is located in the storage groove (3031).

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