A switched reluctance motor capable of active ventilation cooling

Abstract

The application relates to the technical field of switched reluctance motors, and particularly discloses a switched reluctance motor capable of active ventilation cooling. The switched reluctance motor comprises a ventilation pipe, one end of the ventilation pipe is provided with a high-pressure air pump, an annular ventilation plate is arranged as an annular shell with an annular cavity, the inner side of the annular ventilation plate is provided with small ventilation holes I, the outer side of the high-pressure air pump is sleeved with and fixedly connected with an auxiliary cleaning mechanism. The switched reluctance motor capable of active ventilation cooling carries out air exchange type heat dissipation by filling gas into the inner side of the annular ventilation plate and then discharging the gas from the plugging device through the exhaust round hole, the existing cooling means is usually improved by modifying the motor shell to improve the heat dissipation of the motor, and the active cooling and temperature reduction of the motor are difficult to realize, the gas sprayed by the high-pressure air pump is resisted by arranging the arc-shaped baffle on the inner wall of the annular ventilation plate, and the directly sprayed gas from the small ventilation holes I on the opposite side of the ventilation pipe is prevented from being directly sprayed out, so that the gas is evenly sprayed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switched reluctance motors, in particular to a switched reluctance motor capable of active ventilation cooling. BACKGROUND

[0002] The switched reluctance motor is a new type of speed regulating motor, and the speed regulating system has the advantages of both DC and AC speed regulating systems, is the latest generation of stepless speed regulating system after a frequency conversion speed regulating system and a brushless DC motor speed regulating system, has simple and robust structure, wide speed regulating range, excellent speed regulating performance, and high efficiency in the whole speed regulating range, and high system reliability, and the switched reluctance motor operates according to the principle of minimum magnetic resistance, that is, the magnetic flux always closes along the path with minimum magnetic resistance, and when the iron core with a certain shape moves to the position with minimum magnetic resistance, the main axis of the iron core must coincide with the axis of the magnetic field, and the magnetic field is generated after the stator winding is energized, and due to the change of the magnetic resistance between the stator salient poles and the rotor salient poles, the rotor is subjected to magnetic pulling force and rotates, and the rotating direction of the rotor is related to the energization sequence of the phase winding and is irrelevant to the current direction.

[0003] The switched reluctance motor can cause temperature rise of each part of the motor when high output power is realized, and the motor needs to be cooled, but the existing cooling means usually improves the heat dissipation of the motor shell to improve the heat dissipation of the motor, and it is difficult to actively cool the motor, so the application provides a switched reluctance motor capable of active ventilation cooling. SUMMARY

[0004] To solve the above technical problems, the application provides a switched reluctance motor capable of active ventilation cooling, which comprises:

[0005] A motor shell, one side of the motor shell is provided with a driving rod;

[0006] An active ventilation cooling device is used for actively guiding the gas to be discharged from the motor and re-entering the motor to form a ventilation type heat dissipation;

[0007] A plugging device is used for covering and plugging the exhaust hole which is not actively ventilated and cooled;

[0008] The inner wall of the motor shell and one end of the driving rod are rotationally connected through a rotating bolt, the inner wall of the motor shell and the outer side of the active ventilation cooling device are fixedly connected, and the outer side of the active ventilation cooling device is connected with one end of the plugging device in communication;

[0009] The active ventilation cooling device comprises:

[0010] A ventilation pipe, one end of the ventilation pipe is provided with a high-pressure air pump;

[0011] Ring-shaped ventilation plate, which is provided with a ring-shaped cavity inside a ring-shaped shell, and a plurality of small ventilation holes are arranged on the inner side of the ring-shaped ventilation plate, and the ring-shaped ventilation plate is used for air exchange cooling by filling gas into the ring-shaped ventilation plate and then discharging the gas from the sealing device through the exhaust round hole, so that the motor can be actively cooled;

[0012] One end of the ventilation pipe is connected with the gas outlet of the high-pressure air pump, and the other end of the ventilation pipe is connected with the outer side of the ring-shaped ventilation plate.

[0013] The outer side of the ring-shaped ventilation plate is fixedly connected with the inner wall of the motor shell.

[0014] A plurality of heat dissipation arc holes are arranged on the outer side of the motor shell.

[0015] The outer side of the high-pressure air pump is sleeved and fixedly connected with an auxiliary cleaning mechanism, the outer side of the ring-shaped ventilation plate is provided with an exhaust round hole, the inner wall of the ring-shaped ventilation plate is fixedly connected with an embedded partition plate, the ring-shaped ventilation plate is divided into two areas by arranging the embedded partition plate inside the ring-shaped ventilation plate, so that the gas can be exchanged, and the backflow of the gas entering the area close to the exhaust round hole through the small ventilation holes is prevented, the heat dissipation efficiency is improved, the outer side of the arc-shaped baffle is provided with a small ventilation hole two, the gas can be uniformly distributed around each small ventilation hole one and uniformly discharged by arranging the small ventilation hole two on the arc-shaped baffle, and the gas is prevented from being filled into the local area at the top and bottom when the area close to the ventilation pipe in the ring-shaped ventilation plate is filled with gas.

[0016] One end of the auxiliary cleaning mechanism is fixedly connected with the outer side of the motor shell, and the outer side of the ring-shaped ventilation plate is connected with one end of the sealing device through the exhaust round hole.

[0017] The embedded partition plate is provided with two, and the two embedded partition plates are respectively arranged at the top and bottom positions of the inner wall of the ring-shaped ventilation plate, the arc-shaped baffle is provided with two, and the two arc-shaped baffles are respectively arranged at the positions close to the exhaust round hole and the ventilation pipe of the inner wall of the ring-shaped ventilation plate, and the small ventilation hole two is provided with a plurality of small ventilation holes two, and the plurality of small ventilation holes two are distributed on the arc-shaped baffle and staggered with the small ventilation holes one.

[0018] Furthermore, the auxiliary cleaning mechanism includes a dust filter plate and an arc-shaped fixed sleeve plate, and the dust filter plate is arranged at the air inlet of the high-pressure air pump to filter the dust in the gas to be sucked in, so as to prevent the gas sucked into the motor from being mixed with too much dust and gradually accumulating inside the motor and affecting the use of the motor. The inner side of the arc-shaped fixed sleeve plate is fixedly connected with a fixed round block 1, and the high-pressure air pump and the motor housing are fixedly connected through the arc-shaped fixed sleeve plate and the fixed round block 1 to ensure stable and anti-shake, so as to prevent multiple high-pressure air pumps from being not tightly fixed when working at high frequency, resulting in continuous vibration and affecting the use of the motor. The outer side of the arc-shaped fixed sleeve plate is fixedly connected with a fixed round block 2, and the end of the fixed round block 2 away from the arc-shaped fixed sleeve plate is fixedly connected with an annular electric slide rail, and the inner wall of the annular electric slide rail is rotatably connected with a square slider, and the side of the square slider close to the dust filter plate is fixedly connected with a strip scraper rod, and when the strip scraper rod rotates, it scrapes and cleans the surface of the dust filter plate, preventing the dust filter plate from growing After a period of use, the surface gradually absorbs too many dust particles and impurities, which block the dust filter holes and affect the ventilation efficiency. The two sides of the square slider are fixedly connected with an arc-shaped baffle rod. By arranging an arc-shaped baffle rod that rotates together on both sides of the square slider, the slide groove of the annular electric slide rail is covered and blocked to prevent the slide groove of the annular electric slide rail from approaching the gas flow area, causing some dust particles and impurities to gradually accumulate in the slide groove of the annular electric slide rail and affect use. The dust filter plate is fixedly connected to one side of the high-pressure air pump on the side away from the strip scraper rod. The arc-shaped fixed sleeve is sleeved on the high-pressure air pump and fixedly connected to the high-pressure air pump. One end of the fixed round block is fixedly connected to the outer side of the motor housing away from the arc-shaped fixed sleeve. The inner side of the annular electric slide rail is fixedly connected to the outer side of the high-pressure air pump. The square slider is provided with a plurality of them, and the plurality of square sliders are respectively distributed on the inner wall of the annular electric slide rail. The arc-shaped baffle rod is provided with a plurality of them, and the plurality of arc-shaped baffle rods are respectively distributed on the inner wall of the annular electric slide rail.

[0019] Further, the sealing device comprises an annular butt joint plate, an arc-shaped through hole is formed on the outer side of the annular butt joint plate, a strip-shaped blocking rod is fixedly connected to the inner wall of the annular butt joint plate away from the arc-shaped through hole, the strip-shaped blocking rod is arranged inside the annular butt joint plate to slide and limit the circular blocking plate, so that the circular blocking plate and the annular blocking plate are prevented from being gradually moved to the outer side of the annular butt joint plate under the influence of the elastic connection of the retraction spring and being inclined and deviated and being difficult to reset, the inner wall of the annular butt joint plate is fixedly connected to a cross ring plate near the arc-shaped through hole, a retraction spring is fixedly connected to one side of the cross ring plate, the retraction force of the retraction spring drives the annular blocking plate to move back to contact the cross ring plate to seal the arc-shaped through hole, so that when the gas is not discharged to the outside, the external gas flows freely through the arc-shaped through hole and enters the motor and is difficult to handle, one end of the retraction spring away from the cross ring plate is fixedly connected to the circular blocking plate, the inner wall of the circular blocking plate is fixedly connected to the annular blocking plate, the annular blocking plate is scraped and cleaned when moving back to clean the inner wall of the annular butt joint plate, so that when the annular blocking plate is repeatedly moved, a part of the gas mixed with dust particles seeps into the annular butt joint plate to cause a small amount of dust to accumulate in the inner wall of the annular butt joint plate and be difficult to handle, the inner wall of the circular blocking plate is fixedly connected to the annular blocking plate to slide and limit the circular blocking plate, so that when the circular blocking plate connected by the retraction spring is unevenly affected by the gas thrust, the circular blocking plate is inclined and deviated to affect the gas discharge, one side of the annular butt joint plate is in communication with the outer side of the annular ventilation plate through the exhaust round hole, a plurality of arc-shaped through holes are arranged on the outer side of the annular butt joint plate.

[0020] The application provides a switched reluctance motor capable of active ventilation cooling.

[0021] 1. The switched reluctance motor capable of active ventilation cooling, the gas is filled into the inner side of the annular ventilation plate and then discharged from the sealing device through the exhaust round hole to perform air exchange type heat dissipation, so that the existing cooling method is prevented from being difficult to actively cool and cool the motor by improving the motor shell to improve the heat dissipation of the motor, the strip-shaped scraping rod is rotated to scrape and clean the surface of the dust filter plate, so that the dust filter plate is prevented from being blocked by too many dust particles and impurities on the surface after being used for a long time to affect the ventilation efficiency, the retraction force of the retraction spring drives the annular blocking plate to move back to contact the cross ring plate to seal the arc-shaped through hole, so that when the gas is not discharged to the outside, the external gas flows freely through the arc-shaped through hole and enters the motor and is difficult to handle.

[0022] 2. The actively ventilated switched reluctance motor is provided with an active ventilation cooling device, the gas sprayed from the high-pressure gas pump is resisted by setting an arc-shaped baffle on the inner wall of the annular ventilation plate, preventing the gas sprayed from the ventilation pipe from being directly sprayed out from the opposite part of the small ventilation hole 1, and it is difficult to uniformly spray gas. By opening small ventilation hole 2 on the arc-shaped baffle, which is distributed away from small ventilation hole 1, the gas can be uniformly distributed around each small ventilation hole 1 and uniformly discharged, preventing the gas from filling the area near the ventilation pipe inside the annular ventilation plate when it is difficult to uniformly distribute around each small ventilation hole 1. By setting an internal partition plate in the annular ventilation plate, the annular ventilation plate is divided into two areas to facilitate gas exchange, preventing backflow when the gas passes through the small ventilation hole 1 into the area near the exhaust round hole inside the annular ventilation plate, affecting the heat dissipation efficiency. By filling the gas inside the annular ventilation plate and then passing through the exhaust round hole to discharge from the plugging device for ventilation type heat dissipation, preventing the existing cooling means from improving the heat dissipation of the motor by modifying the motor shell, which is difficult to actively cool.

[0023] 3. The actively ventilated switched reluctance motor is provided with an auxiliary cleaning mechanism, the dust filter plate is arranged at the gas inlet of the high-pressure gas pump to filter the dust in the gas about to be sucked in, preventing the gas sucked into the motor from being mixed with too much dust, which gradually accumulates in the motor, affecting the use of the motor. The high-pressure gas pump and the motor shell are fixedly connected by the arc-shaped fixed sleeve plate and the fixed circular block 1 to prevent the high-pressure gas pump from vibrating when working at high frequency, affecting the use of the motor. The surface of the dust filter plate is scraped and cleaned when the strip-shaped scraper rotates, preventing the surface of the dust filter plate from gradually adsorbing too much dust and impurities after long-term use, which will block the dust filter hole and affect the ventilation efficiency. By setting an arc-shaped baffle on both sides of the square block to cover and block the sliding groove of the annular electric sliding rail, preventing the sliding groove of the annular electric sliding rail from being close to the gas flow area, causing some dust and impurities to gradually accumulate in the sliding groove of the annular electric sliding rail, affecting the use.

[0024] 4. The actively ventilated cooling switch reluctance motor is provided with a blocking device, the sliding limit of the circular baffle is realized by setting the strip-shaped baffle rod in the annular butt joint plate, when the gas thrust is large, the circular baffle and the annular baffle are prevented from being pushed to gradually move to the outside of the annular butt joint plate, and the elastic connection of the retraction spring is easy to tilt and deviate and difficult to reset, when the annular baffle is driven to move back to the contact with the cross ring plate by the retraction force of the retraction spring, the arc-shaped through hole is blocked, when the gas is not discharged to the outside, the external gas is prevented from flowing freely through the arc-shaped through hole and entering the motor interior mixed with dust and being difficult to handle, when the annular baffle moves back, the annular butt joint plate inner wall is scraped and cleaned, when the annular baffle reciprocates multiple times, a part of the gas mixed with dust particles seeps into the annular butt joint plate, a small amount of dust is accumulated in the annular butt joint plate inner wall and is difficult to handle, when the annular baffle that is in contact with the annular butt joint plate at all times is set on one side of the circular baffle, the sliding limit of the circular baffle is realized, and the circular baffle connected with the retraction spring is prevented from tilting and deviating when the gas thrust is uneven. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a switch reluctance motor structure schematic diagram of the application;

[0026] Figure 2 It is a switch reluctance motor side structure schematic diagram of the application;

[0027] Figure 3 It is an actively ventilated cooling device structure schematic diagram of the application;

[0028] Figure 4 It is an actively ventilated cooling device internal structure schematic diagram of the application;

[0029] Figure 5 It is an auxiliary cleaning mechanism one structure schematic diagram of the application;

[0030] Figure 6 It is an auxiliary cleaning mechanism two structure schematic diagram of the application;

[0031] Figure 7 It is a blocking device structure schematic diagram of the application;

[0032] Figure 8 It is a blocking device internal structure schematic diagram of the application.

[0033] In the figure: 1, motor housing; 2, drive rod; 3, active ventilation cooling device; 4, plugging device; 5, heat dissipation arc hole; 301, ventilation pipe; 302, high-pressure air pump; 303, annular ventilation plate; 304, small ventilation hole one; 305, auxiliary cleaning mechanism; 306, exhaust round hole; 307, built-in partition plate; 308, arc baffle; 309, small ventilation hole two; 3051, dust filter plate; 3052, arc fixing sleeve plate; 3053, fixed round block one; 3054, fixed round block two; 3055, annular electric slide rail; 3056, square slide block; 3057, strip-shaped scraping rod; 3058, arc-shaped blocking rod; 401, annular butt joint plate; 402, arc-shaped through hole; 403, strip-shaped blocking rod; 404, cross ring plate; 405, retraction spring; 406, circular baffle; 407, annular baffle. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Please refer to Figures 1-6 The present application provides an active ventilation cooling switched reluctance motor, comprising: a motor housing 1, one side of the motor housing 1 is provided with a drive rod 2;

[0036] An active ventilation cooling device 3 is used for actively guiding gas to be discharged from the inside of the motor and re-entering the inside of the motor to form a ventilation type heat dissipation;

[0037] A plugging device 4 is used for covering and plugging the exhaust hole which is not actively ventilated and cooled;

[0038] The inner wall of the motor housing 1 and one end of the drive rod 2 are rotationally connected through a rotating bolt, the inner wall of the motor housing 1 and the outer side of the active ventilation cooling device 3 are fixedly connected, and the outer side of the active ventilation cooling device 3 is connected with one end of the plugging device 4 in communication;

[0039] The active ventilation cooling device 3 comprises:

[0040] A ventilation pipe 301, one end of the ventilation pipe 301 is provided with a high-pressure air pump 302;

[0041] An annular ventilation plate 303, which is an annular shell with an annular cavity inside, the inner side of the annular ventilation plate 303 is provided with a small ventilation hole one 304;

[0042] One end of the ventilation pipe 301 is in communication with the air outlet of the high-pressure air pump 302, and the end of the ventilation pipe 301 away from the high-pressure air pump 302 is in communication with the outer side of the annular ventilation plate 303. A plurality of small ventilation holes 304 are arranged on the inner side of the annular ventilation plate 303.

[0043] The outer side of the annular ventilation plate 303 is fixedly connected with the inner wall of the motor housing 1.

[0044] A plurality of heat dissipation arc holes 5 are arranged on the outer side of the motor housing 1.

[0045] The outer side of the high-pressure air pump 302 is sleeved and fixedly connected with an auxiliary cleaning mechanism 305. The part of the outer side of the annular ventilation plate 303 away from the ventilation pipe 301 is provided with an exhaust round hole 306. The inner wall of the annular ventilation plate 303 is fixedly connected with an inner partition plate 307. The inner wall of the annular ventilation plate 303 is fixedly connected with an arc-shaped baffle 308. The outer side of the arc-shaped baffle 308 is provided with a small ventilation hole 309.

[0046] One end of the auxiliary cleaning mechanism 305 is fixedly connected with the outer side of the motor housing 1. The outer side of the annular ventilation plate 303 is in communication with one end of the plugging device 4 through the exhaust round hole 306.

[0047] The inner partition plate 307 is provided with two, and the two inner partition plates 307 are respectively distributed on the inner wall of the annular ventilation plate 303 at the top and bottom positions. The arc-shaped baffle 308 is provided with two, and the two arc-shaped baffles 308 are respectively distributed on the inner wall of the annular ventilation plate 303 close to the exhaust round hole 306 and the ventilation pipe 301. A plurality of small ventilation holes 309 are arranged on the arc-shaped baffle 308 and staggered with the small ventilation holes 304.

[0048] The auxiliary cleaning mechanism 305 comprises a dust filter plate 3051 and an arc-shaped fixed sleeve plate 3052, the inner side of the arc-shaped fixed sleeve plate 3052 is fixedly connected with a fixed circular block one 3053, the outer side of the arc-shaped fixed sleeve plate 3052 is fixedly connected with a fixed circular block two 3054, one end of the fixed circular block two 3054 away from the arc-shaped fixed sleeve plate 3052 is fixedly connected with an annular electric sliding rail 3055, the inner wall of the annular electric sliding rail 3055 is rotatably connected with a square sliding block 3056, one side of the square sliding block 3056 close to the dust filter plate 3051 is fixedly connected with a strip-shaped scraping rod 3057, both sides of the square sliding block 3056 are fixedly connected with arc-shaped blocking rods 3058, one side of the dust filter plate 3051 away from the strip-shaped scraping rod 3057 is fixedly connected with one side of the high-pressure air pump 302, the arc-shaped fixed sleeve plate 3052 is sleeved on the high-pressure air pump 302 and is fixedly connected with the high-pressure air pump 302, one end of the fixed circular block one 3053 away from the arc-shaped fixed sleeve plate 3052 is fixedly connected with the outer side of the motor shell 1, the inner side of the annular electric sliding rail 3055 is fixedly connected with the outer side of the high-pressure air pump 302, the square sliding block 3056 is provided with a plurality of square sliding blocks 3056, and the plurality of square sliding blocks 3056 are distributed in the inner wall of the annular electric sliding rail 3055, the arc-shaped blocking rod 3058 is provided with a plurality of arc-shaped blocking rods 3058, and the plurality of arc-shaped blocking rods 3058 are distributed in the inner wall of the annular electric sliding rail 3055, in use, the active ventilation cooling device 3 fills the gas into the motor and pushes the gas in the motor to be discharged from the other side of the plugging device 4, so that the motor interior continuously carries out the heat dissipation cooling of the ventilation type, the high-pressure air pump 302 inhales the external gas into the ventilation pipe 301 and into the annular ventilation plate 303, the gas in the ventilation pipe 301 is in contact with the arc-shaped baffle 308 and diffuses around along the arc surface of the arc-shaped baffle 308, the arc-shaped baffle 308 is arranged on the inner wall of the annular ventilation plate 303 to resist the gas sprayed by the high-pressure air pump 302, the gas flows along the arc surface of the arc-shaped baffle 308 and sequentially contacts the inner wall of the annular ventilation plate 303 through the small ventilation hole two 309, the small ventilation hole two 309 is arranged on the arc-shaped baffle 308 and is distributed in the small ventilation hole one 304, so that the gas can be uniformly distributed around each small ventilation hole one 304 and uniformly discharged, until the gas fills the arc-shaped area of the annular ventilation plate 303 close to the ventilation pipe 301 and is discharged to the inner side of the annular ventilation plate 303 through the small ventilation hole one 304, when the gas gradually enters the inner side area of the annular ventilation plate 303, the gas pushes the original gas to pass through the small ventilation hole one 304 close to the exhaust circular hole 306 and enters the area of the annular ventilation plate 303 close to the exhaust circular hole 306, at this time, the gas in the area of the annular ventilation plate 303 close to the exhaust circular hole 306 contacts the arc-shaped baffle 308 and gradually fills the area and then enters the plugging device 4 through the exhaust circular hole 306 and is discharged to the outside, the inner built-in partition plate 307 is arranged in the annular ventilation plate 303 to divide the annular ventilation plate 303 into two areas, so as to facilitate the ventilation of the gas,The gas is discharged from the sealing device 4 by being filled into the inside of the annular ventilation plate 303 and then passing through the exhaust round hole 306 to carry out the heat dissipation of the air exchange type, the dust filtration is carried out on the gas to be sucked in by arranging the dust filter plate 3051 at the air inlet of the high-pressure air pump 302, the high-pressure air pump 302 is fixedly connected with the motor housing 1 through the arc-shaped fixed sleeve plate 3052 and the fixed circular block one 3053 to be stably fixed and prevented from shaking, and the annular electric sliding rail 3055 drives the square sliding block 3056 to drive the strip-shaped scraping rod 3057 and the arc-shaped blocking rod 3058 on the two sides to rotate together, the surface of the dust filter plate 3051 is scraped and cleaned when the strip-shaped scraping rod 3057 rotates, and the sliding groove of the annular electric sliding rail 3055 is covered and sealed by arranging the arc-shaped blocking rod 3058 on the two sides of the square sliding block 3056 to rotate together.

[0049] Please refer to Figures 1-8 The application provides a switched reluctance motor capable of active ventilation cooling. The sealing device 4 comprises an annular butt joint plate 401, the outer side of the annular butt joint plate 401 is provided with arc-shaped through holes 402, the inner wall of the annular butt joint plate 401 is fixedly connected with a strip-shaped blocking rod 403 at a position away from the arc-shaped through holes 402, the inner wall of the annular butt joint plate 401 is fixedly connected with a cross ring plate 404 at a position close to the arc-shaped through holes 402, one side of the cross ring plate 404 is fixedly connected with a retraction spring 405, one end of the retraction spring 405 away from the cross ring plate 404 is fixedly connected with a circular blocking plate 406, one side of the circular blocking plate 406 close to the retraction spring 405 is fixedly connected with an annular blocking plate 407, one side of the annular butt joint plate 401 is in communication with the outer side of the annular ventilation plate 303 through the exhaust round hole 306, a plurality of arc-shaped through holes 402 are arranged on the outer side of the annular butt joint plate 401, and the gas enters the annular butt joint plate 401 after being discharged from the exhaust round hole 306, the gas gradually fills the inside of the annular butt joint plate 401 and pushes the circular blocking plate 406 to drive the annular blocking plate 407 to move towards the strip-shaped blocking rod 403, the annular blocking plate 407 gradually moves towards the strip-shaped blocking rod and is separated from the covering sealing of the arc-shaped through holes 402, at this time, the gas in the inside of the annular butt joint plate 401 can be discharged to the outside through the arc-shaped through holes 402, the circular blocking plate 406 is limited in sliding by arranging the strip-shaped blocking rod 403 in the inside of the annular butt joint plate 401, the circular blocking plate 406 loses the pushing of the gas when the motor is not actively ventilated and cooled, at this time, the retraction spring 405 drives the circular blocking plate 406 to move back through the retraction force, the circular blocking plate 406 drives the annular blocking plate 407 on one side to move back when moving back, the annular blocking plate 407 is driven to move back to the contact with the cross ring plate 404 through the retraction force of the retraction spring 405 to seal the arc-shaped through holes 402, the annular blocking plate 407 scrapes and cleans the inner wall of the annular butt joint plate 401 when moving back, and the circular blocking plate 406 is limited in sliding by arranging the annular blocking plate 407 on one side of the circular blocking plate 406, the inner wall of which is in contact with the annular butt joint plate 401 at all times.

[0050] The application is used in operation, the gas is filled into the motor through the active ventilation cooling device 3, and the gas in the motor is pushed out from the blocking device 4 on the other side, so that the motor is continuously ventilated and cooled. The gas outside is sucked into the ventilation pipe 301 by the high-pressure gas pump 302 and enters the annular ventilation plate 303, and is separated into an area by the built-in partition plate 307. The gas sprayed from the ventilation pipe 301 contacts the arc-shaped baffle 308 and spreads around along the arc surface of the arc-shaped baffle 308. The gas sprayed by the high-pressure gas pump 302 is resisted by the arc-shaped baffle 308 arranged on the inner wall of the annular ventilation plate 303. When the gas flows along the arc surface of the arc-shaped baffle 308, it sequentially contacts the inner wall of the annular ventilation plate 303 through the small ventilation hole two 309. The small ventilation hole two 309 is arranged on the arc-shaped baffle 308 and is distributed in the small ventilation hole one 304, so that the gas can be uniformly distributed around the small ventilation hole one 304 and uniformly discharged. When the gas fills the arc-shaped area near the ventilation pipe 301 in the annular ventilation plate 303, it is discharged to the inside of the annular ventilation plate 303 through the small ventilation hole one 304. When the gas gradually enters the inside area of the annular ventilation plate 303, it pushes the original gas to pass through the small ventilation hole one 304 near the exhaust circular hole 306 and enters the area near the exhaust circular hole 306 in the annular ventilation plate 303. At this time, the gas entering the area near the exhaust circular hole 306 in the annular ventilation plate 303 contacts the arc-shaped baffle 308 and gradually fills the area, and then enters the blocking device 4 through the exhaust circular hole 306 and is discharged to the outside. The annular ventilation plate 303 is divided into two areas by the built-in partition plate 307 arranged in the annular ventilation plate 303, so that the gas can be ventilated. The gas is filled into the inside of the annular ventilation plate 303 and then discharged from the blocking device 4 through the exhaust circular hole 306 to be ventilated and cooled. The dust filter plate 3051 is arranged at the gas inlet of the high-pressure gas pump 302 to filter the dust in the gas to be sucked. The high-pressure gas pump 302 is fixedly connected with the motor shell 1 through the arc-shaped fixed sleeve plate 3052 and the fixed circular block one 3053 to be stable and prevent shaking. At the same time, the annular electric sliding rail 3055 drives the square sliding block 3056 to drive the strip-shaped scraping rod 3057 and the arc-shaped blocking rod 3058 on both sides to rotate. The strip-shaped scraping rod 3057 scrapes and cleans the surface of the dust filter plate 3051 when rotating. The arc-shaped blocking rod 3058 arranged on both sides of the square sliding block 3056 rotates to cover and block the sliding groove of the annular electric sliding rail 3055. After the gas is discharged from the exhaust circular hole 306, it enters the annular butt joint plate 401. When the gas gradually fills the inside of the annular butt joint plate 401, it pushes the circular baffle 406 to drive the annular baffle 407 to move towards the strip-shaped blocking rod 403. When the annular baffle 407 gradually moves towards the strip-shaped blocking rod, it is separated from the covering and blocking of the arc-shaped through hole 402. At this time, the gas in the annular butt joint plate 401 can be discharged to the outside through the arc-shaped through hole 402.The circular baffle 406 is limited in sliding by the strip-shaped baffle lever 403 arranged inside the annular butt plate 401. When the circular baffle 406 loses the pushing force of the gas without active ventilation and cooling of the motor, the retraction spring 405 drives the circular baffle 406 to move back by the retraction force. When the circular baffle 406 moves back, the annular baffle 407 on one side moves back together. The annular baffle 407 is driven to move back to contact the cross ring plate 404 by the retraction force of the retraction spring 405, thereby blocking the arc-shaped through hole 402. When the annular baffle 407 moves back, the inner wall of the annular butt plate 401 is scraped and cleaned. The circular baffle 406 is limited in sliding by the annular baffle 407 arranged on one side of the circular baffle 406 and in contact with the annular butt plate 401 at all times.

[0051] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application are implemented according to the conventional means in the art, unless specifically described and limited.

Claims

1. An actively vent-cooled switched reluctance machine characterized by, The utility model relates to a motor casing (1) one side is provided with drive rod (2), active ventilation cooling device (3) is used for actively guiding gas from motor interior discharge and reentering motor interior forms the ventilation type heat dissipation, blocking device (4) is used for covering type blocking to the exhaust hole of not active ventilation cooling, the inner wall of motor casing (1) and the one end of drive rod (2) are connected through the rotation bolt, the inner wall of motor casing (1) and the outside of active ventilation cooling device (3) are fixedly connected, the outside of active ventilation cooling device (3) is connected with the one end of blocking device (4) intercommunication, Wherein, the active ventilation cooling device (3) includes: Ventilation pipe (301), one end of the ventilation pipe (301) is provided with a high-pressure air pump (302), The annular ventilation plate (303) is provided as a ring-shaped shell with an annular cavity inside, the inner side of the annular ventilation plate (303) is provided with a small ventilation hole one (304), One end of the ventilation pipe (301) is in communication with the gas outlet of the high-pressure air pump (302), the end of the ventilation pipe (301) away from the high-pressure air pump (302) is in communication with the outer side of the annular ventilation plate (303), the small ventilation hole one (304) is provided with a plurality of small ventilation hole ones (304), and the plurality of small ventilation hole ones (304) are distributed on the inner side of the annular ventilation plate (303), The outer side of the annular ventilation plate (303) is fixedly connected with the inner wall of the motor casing (1), The outer side of the high-pressure air pump (302) is sleeved and fixedly connected with an auxiliary cleaning mechanism (305), the part of the outer side of the annular ventilation plate (303) away from the ventilation pipe (301) is provided with an exhaust round hole (306), the inner wall of the annular ventilation plate (303) is fixedly connected with an embedded partition plate (307), the inner wall of the annular ventilation plate (303) is fixedly connected with an arc-shaped baffle (308), and the outer side of the arc-shaped baffle (308) is provided with a small ventilation hole two (309), The auxiliary cleaning mechanism (305) includes a dust filter plate (3051) and an arc-shaped fixed sleeve plate (3052), the inner side of the arc-shaped fixed sleeve plate (3052) is fixedly connected with a fixed circular block one (3053), the outer side of the arc-shaped fixed sleeve plate (3052) is fixedly connected with a fixed circular block two (3054), one end of the fixed circular block two (3054) away from the arc-shaped fixed sleeve plate (3052) is fixedly connected with a ring-shaped electric sliding rail (3055), the inner wall of the ring-shaped electric sliding rail (3055) is rotatably connected with a square sliding block (3056), one side of the square sliding block (3056) close to the dust filter plate (3051) is fixedly connected with a strip-shaped scraping rod (3057), and both sides of the square sliding block (3056) are fixedly connected with arc-shaped blocking rods (3058). The outer side of the motor casing (1) is provided with a plurality of heat dissipation arc holes (5), and the plurality of heat dissipation arc holes (5) are distributed on the outer side of the motor casing (1). ​ ​ ​ 2. A switched reluctance machine capable of active ventilation cooling according to claim 1, characterized in that: ​ 3. A switched reluctance machine capable of active ventilation cooling according to claim 1, characterized in that: One end of the auxiliary cleaning mechanism (305) is fixedly connected with the outer side of the motor shell (1), and the outer side of the annular ventilation plate (303) is connected in communication with one end of the plugging device (4) through the exhaust round hole (306).

4. A switched reluctance machine capable of active ventilation cooling according to claim 1, characterized in that: The two built-in partition plates (307) are respectively distributed at the top and bottom positions of the inner wall of the annular ventilation plate (303), the two arc-shaped baffles (308) are respectively distributed at the positions of the inner wall of the annular ventilation plate (303) close to the exhaust round hole (306) and the ventilation pipe (301), and the plurality of small ventilation holes two (309) are distributed on the arc-shaped baffle (308) and staggered with the small ventilation hole one (304).

5. A switched reluctance machine capable of active ventilation cooling as claimed in claim 1 characterized in that: The side of the dust filter plate (3051) away from the strip-shaped scraper rod (3057) is fixedly connected with one side of the high-pressure air pump (302), the arc-shaped fixed sleeve plate (3052) is sleeved on the high-pressure air pump (302) and fixedly connected with the high-pressure air pump (302), one end of the fixed circular block one (3053) away from the arc-shaped fixed sleeve plate (3052) is fixedly connected with the outer side of the motor shell (1), and the inner side of the annular electric sliding rail (3055) is fixedly connected with the outer side of the high-pressure air pump (302).

6. A switch reluctance machine capable of active ventilation cooling as claimed in claim 1 characterized in that: The plurality of square sliding blocks (3056) are respectively distributed on the inner wall of the annular electric sliding rail (3055), and the plurality of arc-shaped blocking rods (3058) are respectively distributed on the inner wall of the annular electric sliding rail (3055).

7. A switch reluctance machine capable of active ventilation cooling as claimed in claim 1 characterized in that: The plugging device (4) comprises an annular butt joint plate (401), an arc-shaped through hole (402) is formed in the outer side of the annular butt joint plate (401), a strip-shaped blocking rod (403) is fixedly connected to the part of the inner wall of the annular butt joint plate (401) away from the arc-shaped through hole (402), a cross ring plate (404) is fixedly connected to the part of the inner wall of the annular butt joint plate (401) close to the arc-shaped through hole (402), a retraction spring (405) is fixedly connected to one side of the cross ring plate (404), a circular baffle (406) is fixedly connected to one end of the retraction spring (405) away from the cross ring plate (404), and an annular baffle (407) is fixedly connected to the side of the circular baffle (406) close to the retraction spring (405).

8. A switch reluctance machine capable of active ventilation cooling according to claim 7, characterized in that: One side of the annular butt joint plate (401) is connected in communication with the outer side of the annular ventilation plate (303) through the exhaust round hole (306), and the plurality of arc-shaped through holes (402) are distributed on the outer side of the annular butt joint plate (401).

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