High-efficiency energy-saving motor based on turbulent flow speed regulation type heat dissipation technology

Abstract

The invention belongs to the technical field of motors, and particularly relates to a high-efficiency energy-saving motor based on a turbulent flow speed regulation type heat dissipation technology, which comprises an end cover, a stator iron core is mounted on the end cover, and a casing is sleeved on the stator iron core; a discharging groove is formed in the machine shell, and centrifugal fan blades are installed in the machine shell. An adjusting groove is formed in the machine shell, and a spoiler is installed in the adjusting groove in a sliding mode; filter screens are mounted at the through holes in the discharge groove and the adjusting groove, and the discharge groove and the adjusting groove are not communicated with each other; a guide plate is mounted in the discharge groove, a limiting rod is mounted on the spoiler, and the limiting rod is in contact with the upper surface of the guide plate; the motor is simple in structure, air in the motor is forced to flow and discharged through the centrifugal fan blades and the guide plate, the relative positions of the spoiler and the guide plate are adjusted in a self-adaptive mode according to the running speed of the motor, the air is disturbed, heat dissipation of the motor is promoted, and the motor is prevented from being damaged due to overheating.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular is a high-efficiency energy-saving motor based on a turbulence-following speed-adjustable heat dissipation technology. Background Art

[0002] Permanent magnet motors use permanent magnets to provide excitation, which makes the motor structure simpler, reduces processing and assembly costs, and eliminates slip rings and brushes that are prone to problems, thereby improving the reliability of motor operation. Because no excitation current is required and there is no excitation loss, the efficiency and power density of the motor are improved.

[0003] The permanent magnet motor is composed of stator, rotor and end cover. The stator is basically the same as the ordinary induction motor, and adopts a laminated structure to reduce the iron loss of the motor during operation. The rotor can be made solid or laminated. The armature winding can be concentrated full-pitch winding, distributed short-pitch winding and unconventional winding.

[0004] When the permanent magnet motor runs at high speed, a large amount of heat energy will be generated through energy conversion and friction generated during rotation. If the heat cannot be quickly dissipated, the internal magnetism of the permanent magnet motor will disappear, which will greatly affect the working efficiency of the permanent magnet motor. The heat dissipation of the permanent magnet motor on the market is fixed and limited. It is impossible to change the external structure of the motor according to the speed of the motor and freely adjust the heat dissipation performance, so that the heat accumulates inside the motor and cannot be quickly dissipated, affecting the motor's operating efficiency, stability and the scope of application of the motor; At the same time, as in the Chinese patent with publication number CN114944727A in the prior art, when the motor runs at high speed, the flip limit plate and the flip heat sink are fitted together, and the angle of the lateral spoiler is changed by the extrusion of the lateral extrusion block, so as to change the structure of the entire motor as needed, so as to quickly guide the heat from the periphery of the motor to the outside, wherein, during heat dissipation, the flip limit plate and the flip heat sink are flipped outward to disturb the air outside the motor and increase the heat dissipation effect. However, the flip limit plate and the flip heat sink are in a parallel state relative to the outer surface of the motor, so that the disturbed air outside the motor can easily form a relatively stable circulation state along the circumference of the motor, resulting in insufficient fluidity between the air near the outside of the motor and the air away from the motor. Therefore, when the motor runs for a long time and dissipates heat, the temperature of the air near the outside of the motor that forms a circulation state will be higher than the air away from the motor, which is not conducive to the continued dissipation of heat inside the motor to the outside, affecting the improvement of the heat dissipation effect of the motor. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, centrifugal fan blades and guide plates are used to force the air in the motor to flow and discharge, thereby promoting heat exchange between the inside and outside of the motor. At the same time, the relative positions of the spoiler and the guide plate are adaptively adjusted according to the running speed of the motor, and the external structure of the motor is adjusted. While reducing the fluidity of the air on the outside, the heat dissipation of the motor is promoted to avoid heat accumulation in the motor, which may lead to overheating and damage of the motor. The present invention proposes a high-efficiency and energy-saving motor based on spoiler speed-adjustable heat dissipation technology.

[0006] The technical solution adopted by the present invention to solve the technical problem is: the high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology of the present invention comprises an end cover, a stator core is mounted on the end cover, a rotating shaft is rotatably mounted on the stator core, a housing is mounted on the rotating shaft, a magnetic steel is mounted in the housing, and the housing is sleeved on the stator core; A discharge groove is provided at one end of the casing away from the end cover, and a centrifugal fan blade is installed on the rotating shaft, and the centrifugal fan blade and the discharge groove are on the same plane; The housing is provided with an adjustment slot, a through hole communicating with the interior of the housing is provided in the adjustment slot, a spoiler is installed in the adjustment slot, a slide slot is provided on the inner wall of the adjustment slot, a mounting rod is slidably installed in the slide slot, the other end of the mounting rod is installed on the spoiler, and there is a gap between the side of the spoiler and the inner wall of the adjustment slot; Filters are installed at the through holes in the discharge groove and the regulating groove, and the discharge groove and the regulating groove are not connected to each other; A guide plate is slidably installed in the discharge groove, and there is an angle between the length direction of the guide plate and the rotating shaft. A limiting rod is installed at one end of the spoiler close to the guide plate, and the other end of the limiting rod abuts against the upper surface of the guide plate. There is a height difference between the guide plate and the spoiler.

[0007] Preferably, an installation groove is opened on the bottom surface of the slide groove, and the installation groove is located at one end of the slide groove close to the bottom surface of the adjustment groove. A blocking plate is installed on the side wall of the installation groove, and the blocking plate is a bimetallic plate. The blocking plate blocks the end of the installation rod located in the slide groove.

[0008] Preferably, the side of the spoiler facing the adjustment slot is in an arc shape convex downwards; The guide plates are provided with arc-shaped protrusions, which form slits in the gaps between the guide plates. The width of the guide plates is smaller than the width of the spoilers.

[0009] Preferably, the depth of the end of the slide groove away from the bottom surface of the adjustment groove is smaller than the depth of the end of the slide groove close to the bottom surface of the adjustment groove, the mounting rod is arc-shaped as a whole, and the mounting rod is elastic.

[0010] Preferably, a fluff layer is installed on the edge of the spoiler, and the fluff layer fills the gap between the side surface of the spoiler and the inner wall of the adjustment groove.

[0011] Preferably, an introduction groove is provided on the side wall of the adjustment groove, the cross section of the introduction groove is arc-shaped, and the opening of the introduction groove toward the inside of the adjustment groove is in contact with the fluff layer.

[0012] Preferably, a cleaning brush is installed in the regulating groove, and a driving blade is installed in the discharge groove; The cleaning brush and the driving blade are installed on the same shaft. The driving blade is driven by the airflow discharged from the discharge groove. The cleaning brush cleans the filter screen at the through hole in the adjustment groove.

[0013] Preferably, a plurality of groups of driving blades are installed in the discharge groove, and the driving blades have different rotation directions.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention discloses a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology. By arranging centrifugal fan blades, discharge grooves, adjustment grooves, guide plates and spoilers, the centrifugal fan blades force the air in the motor to be discharged from the discharge grooves, and cooperate with the guide plates to force the air in the motor to flow, thereby accelerating the heat exchange between the inside and outside of the motor. At the same time, the lifting height of the spoiler and the guide plate is adjusted automatically according to the rotation speed of the motor, and the external structure of the motor is adjusted to disturb the air near the motor, thereby promoting the dissipation of heat inside the motor, avoiding heat accumulation in the motor, and preventing the motor from being damaged by overheating.

[0015] 2. The present invention discloses a high-efficiency and energy-saving motor based on spoiler-speed adjustable heat dissipation technology. By arranging a blocking sheet, a mounting rod and a slide groove, the blocking sheet is used to block the movement of the mounting rod in the slide groove to prevent the spoiler and the guide plate from rising when the motor is just starting or at a low load, resulting in excessive heat dissipation in the motor, and the motor operating temperature cannot reach a suitable temperature range, affecting the normal operation of the motor. At the same time, when the motor load is reduced or the motor stops running, the spoiler and the guide plate will gradually retract into the adjustment groove under the elastic action of the mounting rod to ensure that the spoiler and the guide plate can be retracted by themselves, thereby preventing the spoiler and the guide plate from protruding and affecting the normal use of the motor or causing accidental damage to the spoiler and the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 This is a front view of the motor of the present invention when it is not working or under low load; Figure 2 This is a front view of the motor of the present invention when it is highly loaded; Figure 3 is a cross-sectional view of the motor of the present invention; Figure 4 It is a schematic diagram of the structure inside the regulating slot and the discharge slot on the motor of the present invention; Figure 5 is a cross-sectional view of an adjustment slot on a motor of the present invention; Figure 6 is a cross-sectional view of a discharge slot on a motor of the present invention; Figure 7 yes Figure 2 A partial enlarged view of the middle part; Figure 8 yes Figure 4 A partial enlarged view of point B in the middle; Fig. 9 yes Figure 4 A partial enlarged view of point C in the middle; Fig.10 yes Figure 5 A partial enlarged view of point D in the middle; In the figure: end cover 1, stator core 11, casing 2, rotating shaft 21, magnetic steel 22, centrifugal blades 23, discharge groove 3, driving blades 31, cleaning brush 32, adjustment groove 4, spoiler 41, mounting rod 42, slide groove 421, fluff layer 43, introduction groove 44, mounting groove 45, blocking sheet 451, guide plate 5, arc-shaped protrusion 51, and limiting rod 52. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figures 1 to 10 As shown, the high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology of the present invention comprises an end cover 1, a stator core 11 is mounted on the end cover 1, a rotating shaft 21 is rotatably mounted on the stator core 11, a housing 2 is mounted on the rotating shaft 21, a magnetic steel 22 is mounted in the housing 2, and the housing 2 is sleeved on the stator core 11; The housing 2 is provided with a discharge slot 3 at one end away from the end cover 1, and a centrifugal blade 23 is mounted on the rotating shaft 21, and the centrifugal blade 23 and the discharge slot 3 are located on the same plane; The housing 2 is provided with an adjustment slot 4, a through hole communicating with the interior of the housing 2 is provided in the adjustment slot 4, a spoiler 41 is installed in the adjustment slot 4, a slide slot 421 is provided on the inner wall of the adjustment slot 4, a mounting rod 42 is slidably installed in the slide slot 421, the other end of the mounting rod 42 is installed on the spoiler 41, and there is a gap between the side of the spoiler 41 and the inner wall of the adjustment slot 4; Filters are installed at the through holes in the discharge tank 3 and the adjustment tank 4, and the discharge tank 3 and the adjustment tank 4 are not connected to each other; A guide plate 5 is slidably installed in the discharge groove 3, and an angle is formed between the length direction of the guide plate 5 and the rotating shaft 21. A limiting rod 52 is installed at one end of the spoiler 41 close to the guide plate 5, and the other end of the limiting rod 52 abuts against the upper surface of the guide plate 5. There is a height difference between the guide plate 5 and the spoiler 41; When the motor is working, the rotating shaft 21 drives the centrifugal blades 23 to rotate, and then drives the air inside the motor to rotate, so that the air inside the motor is thrown out from the discharge slot 3 to the outside of the motor under the action of centrifugal force, so as to promote the flow of air inside the motor, accelerate the heat dissipation, and avoid the accumulation of heat in the motor, the heat cannot be dissipated in time, and cause the motor to overheat and be damaged; At the same time, after the centrifugal blades 23 discharge the air inside the motor to the outside of the motor, the inside of the motor is in a negative pressure state. At this time, due to the gap between the spoiler 41 and the adjustment slot 4, the outside air enters the adjustment slot 4 from the gap between the spoiler 41 and the adjustment slot 4, and then enters the inside of the motor through the through hole in the adjustment slot 4. After that, the air entering the motor will move from bottom to top in the motor to the centrifugal blades 23, so as to wait for the centrifugal blades 23 to discharge the air inside the motor to the outside of the motor, so that the air in the motor will circulate, and the heat inside the motor will be taken away and dissipated efficiently and quickly, so as to avoid overheating and damage of the motor. At the same time, when the motor is working, the casing 2 serving as the outer rotor will also rotate, so that the spoiler 41 in the adjusting slot 4 on the casing 2 is subjected to the centrifugal force, so that the mounting rod 42 connected to the spoiler 41 slides in the slide slot 421 in the direction away from the casing 2, so that the spoiler 41 rises from the adjusting slot 4 and changes the external shape of the casing 2. At the same time, after the spoiler 41 rises, during the rotation of the casing 2, the spoiler 41 will disturb the air near the motor, promote and accelerate the dissipation of heat in the motor into the air, improve the heat exchange efficiency inside the motor, and avoid overheating and damage to the motor. At the same time, after the spoiler 41 rises, the opening of the adjusting slot 4 is further opened, reducing the difficulty of external air entering the adjusting slot 4 and passing through the through hole in the adjusting slot 4 to enter the inside of the motor, thereby accelerating the heat exchange efficiency between the inside and outside of the motor and facilitating the heat dissipation inside the motor. At the same time, since the limiting rod 52 on the spoiler 41 abuts against the upper surface of the guide plate 5, when the spoiler 41 rises from the adjustment slot 4 under the action of centrifugal force, the limiting rod 52 also leaves the upper surface of the guide plate 5, thereby causing the guide plate 5 to rise from the discharge slot 3 under the action of centrifugal force. Afterwards, since there is an angle between the length direction of the guide plate 5 and the rotating shaft 21, during the rotation of the casing 2, the air near the casing 2 is forced to pass through the gap between the guide plates 5, and the air is guided to flow in an inclined direction away from the spoiler 41, driving the air near the motor to generate an axial flow trend, so as to replace the air near the outside of the motor with the air away from the motor, which is beneficial to the heat dissipation inside the motor. At the same time, since the limiting rod 52 abuts against the upper surface of the guide plate 5, there is a height difference between the guide plate 5 and the spoiler 41, so that when the spoiler 41 is raised, the highest point of the guide plate 5 is always located below the spoiler 41. Therefore, when the guide plate 5 drives the air near the outside of the motor to generate an axial flow, it can effectively promote the axial flow of the air in the circulating state formed below the spoiler 41 and flowing around the outer surface of the motor, so that the air in this circulating state is exchanged with the air away from the motor, ensuring that the temperature difference between this part of the air in the circulating state and the inside of the motor is relatively large, avoiding that the air in the circulating state formed below the spoiler 41 is not easy to flow with the air away from the motor, resulting in a relatively high temperature of the air in the circulating state, affecting the heat exchange between the internal heat of the motor and the outside air, that is, the heat exchange between the air in the circulating state formed below the spoiler 41 which is closest to the motor, so that the heat dissipation of the internal heat of the motor is affected. At the same time, after the guide plate 5 rises from the discharge slot 3, as the guide plate 5 guides the air near the housing 2 in the direction away from the motor, the air near the discharge slot 3 flows. In this process, the air inside the discharge slot 3 and discharged from the motor by the centrifugal fan blades is extracted and discharged, thereby accelerating and ensuring the outward flow of the air inside the motor, further ensuring that the air inside the motor can be discharged smoothly, taking out the heat inside the motor, ensuring that the heat inside the motor is efficiently and quickly dissipated outward, and avoiding the accumulation of heat inside the motor, which may cause overheating and damage to the motor. At the same time, the centrifugal blades 23 and the guide plates 5 that cooperate with the centrifugal blades 23 are used to force the air inside the motor to flow and promote the forced dissipation of the heat inside the motor, thereby avoiding the accumulation of heat inside the motor and causing the motor to be overheated and damaged. At the same time, the centrifugal blades 23 force the air inside the motor to flow, which can also promote the flow and exchange between the outside air and the air inside the motor before and after the spoiler 41 is opened, thereby improving the effect of heat exchange between the inside and outside of the motor and reducing the possibility of heat accumulation inside the motor and causing the motor to be overheated and damaged. At the same time, since the spoiler 41 and the guide plate 5 are lifted up from the adjustment groove 4 under the action of centrifugal force, the centrifugal forces applied to the spoiler 41 and the guide plate 5 are different under different load conditions of the motor, that is, when the rotation speed of the motor is different, the spoiler 41 and the guide plate 5 are lifted up to different heights, and thus the spoiler 41 and the guide plate 5 have different disturbing effects on the air near the motor. Therefore, when the motor load condition is high, the spoiler 41 and the guide plate 5 can be automatically and conveniently adjusted to lift the spoiler 41 and the guide plate 5 higher, so as to fully disturb and guide the flow of the air near the motor, so that the heat inside the motor is continuously and efficiently output to the outside, while reducing the air flow on the outside, promoting heat exchange between the inside and outside of the motor, thereby significantly enhancing the safety and reliability of the motor operation and improving the stability of the motor output.

[0020] As an embodiment of the present invention, a mounting groove 45 is provided on the bottom surface of the slide groove 421, and the mounting groove 45 is located at one end of the slide groove 421 close to the bottom surface of the adjustment groove 4, and a blocking piece 451 is installed on the side wall of the mounting groove 45, and the blocking piece 451 is a bimetallic piece, and the blocking piece 451 blocks the end of the mounting rod 42 located in the slide groove 421; When the motor is turned off, the temperature inside the motor is relatively low, so that the blocking piece 451 made of the bimetallic strip returns to its initial state, and then the mounting rod 42 slidably mounted in the slide groove 421 is blocked and intercepted by the blocking piece 451 installed in the slide groove 421, so that the mounting rod 42 is temporarily locked in the slide groove 421 at one end close to the bottom surface of the adjusting groove 4, that is, the spoiler 41 is temporarily locked in the adjusting groove 4, so that the spoiler 41 is prevented from rising from the adjusting groove 4, thereby preventing the opening range of the adjusting groove 4 from being too large, so that dust and impurities from the outside enter the adjusting groove 4 and accumulate, and block the filter in the through hole in the adjusting groove 4, affecting the normal use of the subsequent motor; At the same time, when the motor is just starting to run or is running at a low load, the heat generated inside the motor is relatively small. The heat dissipation mechanism of the motor itself can effectively and quickly dissipate the heat to maintain the stability of the internal temperature of the motor. The motor does not need to adjust its external structure to increase the heat dissipation effect and efficiency. At this time, since the temperature inside the motor is relatively low, the blocking piece 451 made of bimetallic strips in the slide groove 421 is not deformed or the deformation is small, so that the blocking piece 451 blocks the mounting rod 42 in the slide groove 421, preventing the spoiler 41 and the guide plate 5 from rising. If the ambient temperature is low, the spoiler 41 and the guide plate 5 are prevented from rising when the motor is just starting to run or running at a low load, thereby disturbing the air near the motor, guiding the flow, and forcing the motor to dissipate heat and cool down, causing the temperature inside the motor to be too low, so that the temperature of the motor cannot be in a suitable operating range, affecting the operating efficiency and stability of the motor.

[0021] As an embodiment of the present invention, the side of the spoiler 41 facing the adjustment slot 4 is an arc-shaped convex downward; The guide plates 5 are provided with arc-shaped protrusions 52, and the arc-shaped protrusions 52 form slits in the gaps between the guide plates 5. The width of the guide plates 5 is smaller than the width of the spoiler 41. When the motor is running, after the spoiler 41 rises from the adjustment slot 4 under the action of centrifugal force, as the housing 2 serving as the outer rotor rotates, the spoiler 41 disturbs the air near the motor, thereby promoting heat exchange between the inside and outside of the motor and avoiding heat accumulation in the motor, which may cause overheating and damage to the motor. At the same time, since the lower surface of the spoiler 41 is arc-shaped, when the spoiler 41 rotates with the housing 2, when the air flows along the lower surface of the spoiler 41, it is affected by the arc shape convex downward, so that the flow speed of the air passing under the spoiler 41 is relatively fast, thereby accelerating the air and the motor. The contact between the outer shells promotes the continuous output of the heat inside the motor to the outside, ensuring the efficient and rapid dissipation of the heat inside the motor. At the same time, since the upper surface of the spoiler 41 is relatively flat relative to the lower surface, when the spoiler 41 rotates, the flow speed of the air passing through the upper surface of the spoiler 41 will not be affected too much, that is, the air flow outside the spoiler 41, that is, the air flow outside the housing 2 will not be affected too much, avoiding the air outside the motor being driven, causing the dust in the air or on the ground to be stirred, causing the dust to fall on the motor, affecting the normal use of the motor; At the same time, when the air near the outer side of the motor passes through the gap between the guide plates 5, since the arc-shaped protrusions 51 on the guide plates 5 form a slit portion at the end of the gap, according to the Bernoulli principle, the speed of the air increases when the air passes through the slit portion, thereby improving the disturbance and guiding effect of the guide plates 5 on the air, promoting the flow effect of the air along the axial direction, accelerating the exchange between the air near the outer side of the motor and the air far away from the motor, ensuring that the temperature difference between the air near the outer side of the motor and the inside of the motor is relatively large, and improving the heat dissipation effect inside the motor; At the same time, since the width of the guide plate 5 is smaller than the width of the spoiler 41, after the air passing through the gap flows faster under the action of the slit portion, the driving effect of the fast-flowing air on the air below the spoiler 41 is enhanced, thereby promoting the axial flow and exchange of the air below the spoiler 41, ensuring a large temperature difference between the air and the inside of the motor, and improving the heat dissipation effect. At the same time, the air accelerated after passing through the slit portion on the guide plate 5 will also drive the air at the discharge groove 3 when leaving the discharge groove 3, accelerate the air flow at the discharge groove 3, and promote the air discharged by the centrifugal fan blades 23 to leave the discharge groove 3, thereby accelerating the flow of air inside the motor, improving the heat dissipation effect of the internal motor, and avoiding overheating and damage to the motor.

[0022] As an embodiment of the present invention, the depth of the end of the slide groove 421 away from the bottom surface of the adjustment groove 4 is less than the depth of the end of the slide groove 421 close to the bottom surface of the adjustment groove 4, the mounting rod 42 is arc-shaped as a whole, and the mounting rod 42 is elastic; When the motor is running at high load, the spoiler 41 is lifted up from the adjusting groove 4 under the action of centrifugal force. Since the depth of the slide groove 421 gradually decreases in the direction away from the adjusting groove 4, during the lifting process of the spoiler 41, the mounting rod 42 connected to the spoiler 41 will be gradually squeezed, causing the mounting rod 42 to elastically deform. Afterwards, when the motor load is reduced, the speed is reduced or the motor stops running, the centrifugal force on the spoiler 41 is reduced or no longer affected by the centrifugal force. At this time, the elastic force of the mounting rod 42 acts on the component force along the bottom surface direction of the slide groove 421, which will be greater than the centrifugal force on the spoiler 41, causing the mounting rod 42 to move in the slide groove 421 toward the bottom surface of the adjusting groove 4. Even if the spoiler 41 is gradually retracted into the adjusting groove 4, it is avoided that after the motor load is reduced or the motor stops, the spoiler 41 lifted up from the adjusting groove 4 cannot be smoothly retracted, and the spoiler 41 still protrudes out of the adjusting groove 4, affecting the normal use of the motor.

[0023] As an embodiment of the present invention, a fluff layer 43 is installed on the edge of the spoiler 41, and the fluff layer 43 fills the gap between the side of the spoiler 41 and the inner wall of the adjustment groove 4; Since the adjusting slot 4 has a depth and a filter is installed at the through hole in the adjusting slot 4, after the external air enters the adjusting slot 4, it will be blocked by the filter in the through hole, causing the flow rate of the external air to drop sharply. At this time, the dust impurities carried by the external air will settle in the adjusting slot 4, causing dust accumulation in the adjusting slot 4 and easily clogging the filter in the through hole, affecting the normal use of the motor. At the same time, by installing a fluff layer 43 on the edge of the spoiler 41, the gap between the spoiler 41 and the adjusting slot 4 is filled, ensuring that the external air can smoothly pass through the fluff layer 43 before entering the adjusting slot 4, and then pass through the filter at the through hole into the motor. In this process, the dust impurities carried by the external air will be intercepted by the fluff layer 43, preventing the external dust impurities from entering the adjusting slot 4, accumulating in the adjusting slot 4, and clogging the filter at the through hole. At the same time, after the fluff layer 43 intercepts the dust and impurities in the outside air, as the motor load increases and the speed increases, the centrifugal force on the spoiler 41 increases, causing the spoiler 41 to rise from the adjustment slot 4. At this time, the fluff layer 43 at the edge of the spoiler 41 will be impacted and washed by the air that quickly passes through the spoiler 41, so that the dust and impurities attached to the fluff layer 43 are separated, ensuring that the fluff layer 43 is relatively clean and tidy, and avoiding excessive impurities attached to the fluff layer 43, which may cause the fluff layer 43 to become dirty.

[0024] As an embodiment of the present invention, an introduction groove 44 is provided on the side wall of the adjustment groove 4, the cross section of the introduction groove 44 is arc-shaped, and the opening of the introduction groove 44 toward the inside of the adjustment groove 4 is in contact with the fluff layer 43; During the rotation of the housing 2, the opening of the introduction slot 44 is in the same direction as the rotation of the housing 2, so that the outside air can easily enter from the introduction slot 44, so that the outside air stirs and impacts the inside of the adjustment slot 4, and promotes the removal of dust and impurities remaining and accumulated in the adjustment slot 4; At the same time, when the motor is running at a low load or just starting to run, the spoiler 41 is not lifted from the adjustment slot 4 by the blocking plate. At this time, after the outside air enters from the introduction slot 44, the flow speed of the outside air is relatively slow. The outside air still contacts the fluff layer 43 on the spoiler 41, and the fluff layer 43 is used to filter and intercept the outside air, thereby reducing the outside dust and impurities from entering the adjustment slot 4 and clogging the filter in the through hole. At the same time, when the motor is running at high load or for a long time, the spoiler 41 will rise from the adjusting groove 4 under the action of centrifugal force. At this time, the flow speed of the outside air is relatively fast, so that the impact and flushing effect of the outside air on the adjusting groove 4 is better. At this time, the amount of air entering the adjusting groove 4 from the introduction groove 44 and the opening of the adjusting groove 4 is large and the speed is fast, so that the air flowing in the adjusting groove 4 is relatively fast and violent, so that the dust and impurities accumulated in the adjusting groove 4 are cleaned by the flow and impact of the air, and the dust and impurities in the adjusting groove 4 are brought out by the high-speed flowing air, ensuring that the adjusting groove 4 is relatively clean and tidy.

[0025] As an embodiment of the present invention, a cleaning brush 32 is installed in the adjustment slot 4, and a driving blade 31 is installed in the discharge slot 3; The cleaning brush 32 and the driving blade 31 are installed on the same shaft. The driving blade 31 is driven by the airflow discharged from the discharge slot 3. The cleaning brush 32 cleans the filter screen at the through hole in the adjustment slot 4. When the motor is running, the centrifugal fan blades 23 in the motor will see the air in the motor being discharged outward from the discharge slot 3, and then impact the driving blades 31 in the discharge slot 3, driving the driving blades 31 to rotate, thereby driving the cleaning brush 32 in the adjustment slot 4 to rotate synchronously. At the same time, after the cleaning brush 32 is driven, the cleaning brush 32 will clean the filter on the through hole in the adjustment slot 4, remove relatively firm dust and impurities attached to the filter, and prevent the filter from being blocked by dust, affecting the normal operation of the motor.

[0026] As an embodiment of the present invention, a plurality of sets of driving blades 31 are installed in the discharge slot 3, and the driving blades 31 have different rotation directions; Since the driving blade 31 has different rotation directions, after the air discharged from the discharge groove 3 drives the driving blade 31, the driving blade 31 will rotate in different directions, and then the cleaning brush 32 will rotate in different directions. Afterwards, the dust and impurities in the adjustment groove 4 and on the filter screen will be relatively concentrated and gathered by the cleaning brush 32 with different rotation directions, so as to facilitate the subsequent impact and flushing of the dust and impurities in the adjustment groove 4 by the external air, and facilitate the cleaning of the dust and impurities in the adjustment groove 4.

[0027] The specific workflow is as follows: When the motor is working, the rotating shaft 21 drives the centrifugal blades 23 to rotate, so that the air in the motor is thrown out of the motor from the discharge slot 3 under the action of centrifugal force; At the same time, after the centrifugal blades 23 discharge the air inside the motor to the outside of the motor, the inside of the motor is in a negative pressure state. At this time, due to the gap between the spoiler 41 and the adjustment slot 4, the outside air enters the adjustment slot 4 from the gap between the spoiler 41 and the adjustment slot 4, and then enters the inside of the motor through the through hole in the adjustment slot 4. After that, the air entering the motor moves from bottom to top in the motor to the centrifugal blades 23; At the same time, when the motor is working, the housing 2 serving as the outer rotor will also rotate, so that the spoiler 41 in the adjusting slot 4 on the housing 2 is subjected to the centrifugal force, so that the mounting rod 42 connected to the spoiler 41 slides in the slide slot 421 in the direction away from the housing 2, so that the spoiler 41 rises from the adjusting slot 4 and changes the external shape of the housing 2. At the same time, after the spoiler 41 rises, during the rotation of the housing 2, the spoiler 41 will disturb the air near the motor. At the same time, after the spoiler 41 rises, the opening of the adjusting slot 4 is further opened, reducing the difficulty for the outside air to enter the adjusting slot 4 and pass through the through hole in the adjusting slot 4 to enter the inside of the motor. At the same time, since the spoiler 41 rises from the adjustment slot 4 under the action of centrifugal force, when the motor load condition is high, the spoiler 41 can be automatically and conveniently adjusted to make the spoiler 41 rise higher from the adjustment slot 4, so as to fully disturb the air near the motor; When the motor is turned off, the temperature inside the motor is relatively low, so that the blocking piece 451 made of the bimetallic sheet returns to its initial state, and then the blocking piece 451 installed in the slide groove 421 blocks and intercepts the mounting rod 42 slidingly installed in the slide groove 421, so that the mounting rod 42 is temporarily locked at one end of the slide groove 421 close to the bottom surface of the adjustment groove 4, that is, the spoiler 41 is temporarily locked in the adjustment groove 4; After the spoiler 41 rises from the regulating slot 4 under the action of centrifugal force, as the casing 2 serving as the outer rotor rotates, the spoiler 41 disturbs the air near the motor. At the same time, since the lower surface of the spoiler 41 is arc-shaped, when the spoiler 41 rotates with the casing 2, the air flows along the lower surface of the spoiler 41 and is affected by the arc shape convex downward, so that the flow speed of the air passing under the spoiler 41 is relatively fast. At the same time, since the upper surface of the spoiler 41 is relatively flat compared to the lower surface, when the spoiler 41 rotates, the flow speed of the air passing through the upper surface of the spoiler 41 will not be affected too much, that is, the air flowability of the outside of the spoiler 41, that is, the outside of the casing 2 will not be affected too much. Since the depth of the slide groove 421 gradually decreases in the direction away from the adjustment groove 4, during the process of the spoiler 41 rising, the mounting rod 42 connected to the spoiler 41 will be gradually squeezed, causing the mounting rod 42 to be elastically deformed. Afterwards, when the motor load is reduced, the speed is reduced, or the motor stops running, the centrifugal force on the spoiler 41 is reduced or no longer affected by the centrifugal force. At this time, the elastic force of the mounting rod 42 acts on the component force along the bottom surface direction of the slide groove 421, which is greater than the centrifugal force on the spoiler 41, so that the mounting rod 42 moves in the slide groove 421 toward the bottom surface direction of the adjustment groove 4, even if the spoiler 41 is gradually retracted into the adjustment groove 4. By installing a fluff layer 43 on the edge of the spoiler 41, the gap between the spoiler 41 and the adjustment slot 4 is filled, ensuring that the outside air can smoothly pass through the fluff layer 43 and enter the adjustment slot 4, and then pass through the filter at the through hole to enter the motor. In this process, dust and impurities carried by the outside air will be intercepted by the fluff layer 43; At the same time, after the fluff layer 43 intercepts the dust impurities in the outside air, as the motor load increases and the speed increases, the centrifugal force on the spoiler 41 increases, causing the spoiler 41 to rise from the adjustment slot 4. At this time, the fluff layer 43 at the edge of the spoiler 41 will be impacted and washed by the air that quickly passes through the spoiler 41, so that the dust impurities attached to the fluff layer 43 are separated; During the rotation of the housing 2, the opening of the introduction slot 44 is in the same direction as the rotation of the housing 2, so that the outside air can easily enter from the introduction slot 44, so that the outside air stirs and impacts the inside of the adjustment slot 4; At the same time, when the motor is running at a low load or just starting to run, the spoiler 41 is not lifted from the adjustment slot 4 by the blocking plate. At this time, after the outside air enters from the introduction slot 44, the flow speed of the outside air is relatively slow. The outside air still contacts the fluff layer 43 on the spoiler 41, and the fluff layer 43 is used to filter and intercept the outside air. At the same time, when the motor is running at high load or for a long time, the spoiler 41 will rise from the regulating slot 4 under the action of centrifugal force. At this time, the flow speed of the outside air is relatively fast, and the amount of air entering the regulating slot 4 from the introduction slot 44 and the opening of the regulating slot 4 is large and the speed is fast. The air flowing in the regulating slot 4 is relatively fast and violent. The dust and impurities accumulated in the regulating slot 4 are cleaned by the flow and impact of the air. When the motor is running, the centrifugal blades 23 in the motor will see the air in the motor being discharged outward from the discharge slot 3, and then impact the driving blades 31 in the discharge slot 3, driving the driving blades 31 to rotate, thereby driving the cleaning brush 32 in the adjustment slot 4 to rotate synchronously. At the same time, after the cleaning brush 32 is driven, the cleaning brush 32 will clean the filter screen on the through hole in the adjustment slot 4; Since the driving blade 31 has different rotation directions, after the air discharged from the discharge groove 3 drives the driving blade 31, the driving blade 31 will rotate in different directions, and then the cleaning brush 32 will rotate in different directions. Afterwards, the dust and impurities in the adjustment groove 4 and on the filter screen will be relatively concentrated and gathered by the cleaning brush 32 with different rotation directions, so as to facilitate the subsequent impact and flushing of the dust and impurities in the adjustment groove 4 by the external air, and facilitate the cleaning of the dust and impurities in the adjustment groove 4.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency energy-saving motor based on a turbulent speed-adjustable heat dissipation technology, comprising an end cover (1), a stator core (11) being mounted on the end cover (1), a rotating shaft (21) being rotatably mounted on the stator core (11), a housing (2) being mounted on the rotating shaft (21), a magnetic steel (22) being mounted in the housing (2), and the housing (2) being sleeved on the stator core (11); Features: A discharge groove (3) is provided at one end of the casing (2) away from the end cover (1), and a centrifugal blade (23) is installed on the rotating shaft (21), and the centrifugal blade (23) and the discharge groove (3) are located on the same plane; The housing (2) is provided with an adjustment groove (4), a through hole communicating with the interior of the housing (2) is provided in the adjustment groove (4), a spoiler (41) is installed in the adjustment groove (4), a sliding groove (421) is provided on the inner wall of the adjustment groove (4), a mounting rod (42) is slidably installed in the sliding groove (421), the other end of the mounting rod (42) is installed on the spoiler (41), and a gap exists between the side surface of the spoiler (41) and the inner wall of the adjustment groove (4); Filters are installed at the through holes in the discharge groove (3) and the regulating groove (4), and the discharge groove (3) and the regulating groove (4) are not connected to each other; A guide plate (5) is slidably mounted in the discharge groove (3), an angle is formed between the length direction of the guide plate (5) and the rotating shaft (21), a limiting rod (52) is mounted on one end of the spoiler (41) close to the guide plate (5), the other end of the limiting rod (52) abuts against the upper surface of the guide plate (5), and a height difference exists between the guide plate (5) and the spoiler (41).

2. According to claim 1, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized by: A mounting groove (45) is provided on the bottom surface of the slide groove (421). The mounting groove (45) is located at one end of the slide groove (421) close to the bottom surface of the adjustment groove (4). A blocking sheet (451) is installed on the side wall of the mounting groove (45). The blocking sheet (451) is a bimetallic sheet. The blocking sheet (451) blocks one end of the mounting rod (42) located in the slide groove (421).

3. According to claim 1, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized by: The side of the spoiler (41) facing the adjustment groove (4) is in a downwardly convex arc shape; The guide plate (5) is provided with an arc-shaped protrusion (52), and the arc-shaped protrusion (52) forms a slit portion in the gap between the guide plates (5). The width of the guide plate (5) is smaller than the width of the spoiler (41).

4. According to claim 1, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized in that: The depth of one end of the slide groove (421) away from the bottom surface of the adjustment groove (4) is smaller than the depth of one end of the slide groove (421) close to the bottom surface of the adjustment groove (4); the mounting rod (42) is arc-shaped as a whole, and the mounting rod (42) is elastic.

5. According to claim 3, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized in that: The edge of the spoiler (41) is provided with a fluff layer (43), and the fluff layer (43) fills the gap between the side surface of the spoiler (41) and the inner wall of the adjustment groove (4).

6. According to claim 5, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized in that: An introduction groove (44) is provided on the side wall of the adjustment groove (4), the cross section of the introduction groove (44) is arc-shaped, and the opening of the introduction groove (44) facing the inside of the adjustment groove (4) is in contact with the fluff layer (43).

7. According to claim 6, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized in that: A cleaning brush (32) is installed in the regulating groove (4), and a driving blade (31) is installed in the discharge groove (3); The cleaning brush (32) and the driving blade (31) are mounted on the same shaft. The driving blade (31) is driven by the airflow discharged from the discharge groove (3). The cleaning brush (32) cleans the filter screen at the through hole in the adjustment groove (4).

8. According to claim 7, a high-efficiency energy-saving motor based on the turbulence speed-adjustable heat dissipation technology is characterized in that: A plurality of groups of driving blades (31) are installed in the discharge groove (3), and the driving blades (31) have different rotation directions.

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