CN117856512A - New energy cooling tower permanent magnet motor with planetary driving mechanism - Google Patents
New energy cooling tower permanent magnet motor with planetary driving mechanism Download PDFInfo
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- CN117856512A CN117856512A CN202410238674.9A CN202410238674A CN117856512A CN 117856512 A CN117856512 A CN 117856512A CN 202410238674 A CN202410238674 A CN 202410238674A CN 117856512 A CN117856512 A CN 117856512A
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- heat dissipation
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- permanent magnet
- annular part
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- 238000001816 cooling Methods 0.000 title claims abstract description 67
- 230000017525 heat dissipation Effects 0.000 claims abstract description 77
- 238000009434 installation Methods 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 3
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000005057 refrigeration Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a new energy cooling tower permanent magnet motor with a planetary driving mechanism, which belongs to the technical field of permanent magnet motors, wherein a shell is arranged into an outer annular part and an inner annular part, an installation cavity and a heat dissipation cavity are isolated by the inner annular part so as to prevent excessive heat generated by each heating part from being influenced mutually, the installation cavity and the heat dissipation cavity are communicated through a backflow channel arranged on the shell, a plugging component for plugging the backflow channel is additionally arranged at the heat dissipation cavity, the plugging component is used for isolating the heat dissipation cavity and the installation cavity when the motor is in initial operation, a heat dissipation fan is matched with a heat transfer cooling pipe to realize the circulation of cold air between the installation cavity and the backflow channel, the cooling of a rotor and a stator is realized, after the temperature of a transmission main shaft and the bearing heating part is gradually increased, the plugging component is shifted, and part of the cold air is led into the heat dissipation cavity through the backflow channel to realize the cooling treatment of the heat dissipation cavity, and the closed circulating heat exchange is realized.
Description
Technical Field
The invention relates to the technical field of permanent magnet motors, in particular to a new energy cooling tower permanent magnet motor with a planetary driving mechanism.
Background
In the new energy cooling tower, the permanent magnet motor can be used as a driving device of a cooling tower fan. By driving the permanent magnet motor with new energy, the cooling tower can be operated and heat can be dissipated to the atmosphere. Meanwhile, the permanent magnet motor has high efficiency and high torque characteristics, so that energy consumption can be reduced, and the working efficiency of the cooling tower is improved. Wherein, the permanent magnet motor with the planetary mechanism driving system is a driving system combining the permanent magnet motor with the planetary mechanism. The permanent magnet motor is a motor using a permanent magnet as an excitation source and has the advantages of small volume, high rotating speed, high efficiency and the like. The planetary mechanism is a mechanism with the characteristics of high transmission ratio, compactness, flexibility and the like. And further realize the performances of energy conservation, environmental protection, high efficiency and the like of the new energy cooling tower.
Under the condition that the permanent magnet motor runs at a high speed, the high temperature risk is brought to the inside of the motor, the temperature in the motor is increased, the heat not only directly affects the normal work of a rotor, but also can cause the lubricating oil sealed in the bearing to leak out due to the reduction of the temperature rising viscosity when being easily conducted to the bearings at the two ends of the rotor transmission main shaft, thereby increasing the friction resistance of the bearing and reducing the power of the motor.
In the prior art, a plurality of cooling fins which are uniformly distributed are arranged on the shell or a ventilation hole formed in the shell is used for cooling. And can only utilize the heat transfer to dispel the heat through simple setting up the fin, set up the ventilation hole and can cause external dust to get into in the casing, when the dust collection volume is too big, not only influence the heat dissipation, still influence the inside rotor normal work of motor.
Therefore, we propose a new energy cooling tower permanent magnet motor with a planetary driving mechanism, and the heat dissipation channel with a special structure is additionally arranged in the motor to assist the motor to dissipate heat efficiently.
Disclosure of Invention
Compared with the prior art, the invention provides a new energy cooling tower permanent magnet motor with a planetary driving mechanism, the invention realizes the isolation between the installation cavity and the heat dissipation cavity by arranging the casing into the outer annular part and the inner annular part, so as to avoid the mutual influence of excessive heat generated by each heating part, the installation cavity and the heat dissipation cavity are communicated through a backflow channel, the heat dissipation cavity is additionally provided with a plugging component for plugging the backflow channel, and when the motor is in initial operation, the plugging component is used for isolating the heat dissipation cavity and the installation cavity, and the heat dissipation fan is matched with a heat transfer cooling pipe, so that the circulation of cold air between the installation cavity and the backflow channel is realized to cool the rotor and the stator, and after the temperature of the heating part of the bearing is gradually increased, part of cold air is led into the heat dissipation cavity through the backflow channel to cool the heat dissipation cavity, thereby realizing closed circulating heat exchange.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides a new forms of energy cooling tower permanent magnet machine with planetary drive mechanism, includes the motor body, the motor body includes that the outer end wall distributes the casing of a plurality of fin and installs in its inside transmission main shaft, rotor and stator, the transmission main shaft other end runs through the casing outside and fixedly connected with planetary assembly, planetary assembly interior overcoat establishes the planet carrier and the external gear cover of linking, external gear cover and casing tip fixed connection, the planet carrier outer end wall is fixed with the driven shaft, the planet carrier inboard annular distributes has a plurality of planetary gears, planet carrier middle part position department is equipped with the driving gear with transmission main shaft tip fixed socket joint and with planetary gear meshing engagement;
the shell comprises an outer annular part and an inner annular part far away from one side of a rotor, a mounting cavity for mounting the rotor and the stator is reserved between the outer annular part and the inner annular part, a plurality of circulating grooves communicated with the mounting cavity are distributed on the rotor, a first bearing and a second bearing which are fixedly mounted on the inner wall of the inner annular part are sleeved on the end wall of the transmission main shaft, a heat dissipation cavity is reserved between the first bearing, the second bearing and the inner annular part, a sealing cover with an inner end provided with a heat transfer cold pipe is fixedly mounted at one end of the shell far away from the inner annular part, and a heat dissipation fan positioned on the inner side of the sealing cover is sleeved at the end part of the transmission main shaft;
the casing is internally provided with a backflow channel used for being communicated with the mounting cavity and the heat dissipation cavity, and the inner annular part is also provided with a plugging component used for plugging the backflow channel.
Furthermore, the end part of the transmission main shaft is fixedly connected with a butt joint shaft, the driving gear is fixedly sleeved on the shaft wall of the butt joint shaft, the outer end part of the outer gear sleeve is fixedly provided with a mounting sleeve which is sleeved outside the planet carrier, the left side and the right side of the planet carrier are respectively sleeved with a bearing IV and a bearing III which are fixedly connected with the mounting sleeve and the inner wall of the outer gear sleeve, and the bearing IV and the bearing III are additionally arranged, so that the stability of synchronous transmission of the planet carrier by the transmission main shaft is further improved.
Furthermore, the end of the first bearing and the end of the second bearing, which are far away from each other, are respectively provided with a bearing end cover, the bearing end covers are respectively fixedly connected with the two ends of the inner annular part, and the left and right bearing end covers are used for separating the first bearing and the second bearing which are arranged on the transmission main shaft from the rotor, the stator installation part and the planetary assembly respectively, so that heat generated by the stator and the rotor is prevented from being transferred to the bearing installation part and the planetary assembly.
Further, the water tank is fixedly arranged at the outer end of the sealing cover, the heat transfer cold pipe is in a spiral structure, and the inner end and the outer end of the heat transfer cold pipe penetrate through the sealing cover and are connected with the water tank through the circulating pipe.
Further, the closing cap outer end still fixed mounting has the support bracket that is located the water tank lower extreme, support bracket bottom fixedly connected with is used for carrying out the support board of bearing to the casing, a plurality of mounting grooves have been seted up to the annular on the support bracket, every all install the refrigeration piece in the mounting groove, the refrigeration end of refrigeration piece is connected with inside laminating of water tank mutually, fixed mounting has the radiating block with refrigeration piece heating end assorted on the mounting groove outer wall.
Further, the backflow channel comprises a plurality of heat dissipation channels which are formed in the inner wall of the outer annular part and are communicated with the outer end part of the installation cavity, the other end of the heat dissipation channel is communicated with the inner end part of the installation cavity through a first backflow hole formed in the shell, a plurality of connection parts are distributed on the inner annular part, each connection part is provided with a second backflow hole communicated with the installation cavity and the inner heat dissipation cavity, the upper end of the second backflow hole is communicated with the heat dissipation channel through a backflow pipe, and a plurality of convection holes which are located on the two sides of the second backflow hole and are also communicated with the installation cavity and the inner heat dissipation cavity are formed in the inner annular part.
Further, the inner fixedly connected with of closing cap is with the circulation ring that the laminating set up mutually with outer annular portion inner end wall, the inner end wall that outer annular portion and circulation ring laminate sets up multiunit and a plurality of heat dissipation passageway are linked together and are set up the outflow through-hole that sets up, a plurality of and outer circulation through-hole position correspondence and interior through-hole that the intercommunication set up have also been seted up to the inner end wall of circulation ring, when the motor is at the during operation, start radiator fan, radiator fan will install the intracavity air outwards and take out and diffuse all around, the hot air flows to circulation ring department through rotor, stator to cool down through heat transfer cooling tube, in the air guide a plurality of heat dissipation passageways after the cooling.
Further, an annular groove communicated with the second backflow hole and the second convection hole is formed in the inner end wall of the inner annular portion, the annular groove is located between the first bearing and the second bearing, the plugging assembly is installed in the annular groove and comprises a plugging ring which is installed on the inner wall of the annular groove in a sliding mode, and the plugging ring is fixedly connected with the inner wall of the annular groove through a plurality of memory springs.
Further, the width of the plugging ring is larger than the outer diameters of the second backflow hole and the convection hole, the memory springs are arranged far away from the second backflow hole and one side of the convection hole, the memory springs are made of memory alloy materials, the plugging ring is additionally arranged at the inner side of the inner annular part, the plurality of memory springs are in a low-temperature straightening state when the heat dissipation cavity is in an initial low-temperature state, the plugging ring is attached to the outer sides of the second backflow hole and the convection hole, the plugging effect is achieved on the second backflow hole and the convection hole, the mounting cavity and the heat dissipation cavity are isolated from each other, on one hand, high heat generated by the rotor and the stator is prevented from being introduced into the heat dissipation cavity through air circulation, on the other hand, the heat dissipation cavity is isolated, the cooling air is sufficiently cooled in the mounting cavity, the cooling effect on the rotor and the stator in the mounting cavity is effectively improved, and after the bearing synchronously rotates at a high speed for a period of time, the temperature of the heat dissipation cavity is gradually increased until the spring phase state of the memory springs is achieved, and the memory springs shrink and the plugging ring is pulled to move towards one side far away from the second backflow hole and the convection hole, and the circulation between the heat dissipation cavity and the mounting cavity is achieved.
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, the shell is arranged to be the outer annular part and the inner annular part, the inner annular part is utilized to isolate the rotor and stator mounting parts from the first bearing and the second bearing mounting parts, so that excessive heat generated by each heating part is avoided, a heat transfer cold pipe for circulating cold sources is additionally arranged on one side of the cooling fan, a backflow channel for communicating the mounting cavity and the cooling cavity is arranged at the shell, when the motor works, the cooling fan is started, the cooling fan pumps out air in the mounting cavity outwards and diffuses the air around, hot air is cooled through the heat transfer cold pipe, cooled air is redirected to the mounting cavity through the backflow channel, the rotor and the stator are cooled, cold air of other parts is led into the cooling cavity through the backflow channel, the cooling treatment is carried out on the first bearing and the second bearing connecting parts, hot air is led into the mounting cavity through the convection hole under the condition that the driving main shaft rotates at a high speed, and circulating refrigeration of air in the shell is realized under the continuous working environment of the cooling fan.
(2) According to the scheme, the plugging component is additionally arranged in the inner annular part and is used for carrying out initial plugging treatment on the backflow channel at the communication position of the mounting cavity and the radiating cavity, namely, in the state that the radiating cavity is in an initial low temperature state, the memory springs are in a low-temperature straightening state, so that the plugging ring is attached to the outer sides of the backflow hole II and the convection hole, the mounting cavity and the radiating cavity are mutually isolated, high heat generated at the rotor and the stator is prevented from being introduced into the radiating cavity through air circulation on one hand, the radiating cavity is isolated on the other hand, the cooling effect on the rotor and the stator in the mounting cavity is effectively improved through sufficient quantity and rapid cooling circulation of cold air in the mounting cavity, and after the bearing rotates at a synchronous high speed for a period of time, the temperature of the radiating cavity is gradually increased until the spring phase state of the memory springs is reached, and the memory springs shrink and pull the plugging ring to move away from the side of the backflow hole II and the convection hole, so that the circulation between the radiating cavity and the mounting cavity is realized, and synchronous cooling treatment is completed.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a second exploded view of the present invention;
FIG. 4 is a cross-sectional view of the planetary assembly of the present invention;
FIG. 5 is a schematic view of the structure of the casing of the present invention;
FIG. 6 is a cross-sectional view of the present invention at the housing;
fig. 7 is an internal cross-sectional view at the motor body of the present invention;
FIG. 8 is an overall cross-sectional view of the present invention;
FIG. 9 is a schematic view of the structure at A in FIG. 8;
FIG. 10 is a schematic view of the structure at B in FIG. 8;
FIG. 11 is a schematic diagram showing the structure of a joint between a cover and a heat transfer cold pipe;
FIG. 12 is a second schematic diagram of the joint between the cover and the heat transfer cold pipe.
The reference numerals in the figures illustrate:
1. a housing; 101. a heat dissipation channel; 102. an outer flow port; 103. a reflow hole I; 104. a second reflow hole; 105. convection holes; 2. a transmission main shaft; 3. a rotor; 301. a flow channel; 4. a stator; 5. an external gear sleeve; 6. a planet carrier; 7. a mounting sleeve; 8. a driven shaft; 9. a first bearing; 10. a second bearing; 11. a third bearing; 12. a bearing IV; 13. a planetary gear; 14. a drive gear; 15. a butt joint shaft; 16. a heat radiation fan; 17. a heat transfer cold pipe; 18. a cover; 181. a flow-through ring; 182. an inner flow port; 19. a support bracket; 20. a water tank; 21. a circulation pipe; 22. a heat sink; 23. a cooling sheet; 24. a heat dissipation block; 25. a return pipe; 26. a plugging ring; 27. and a memory spring.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only a few embodiments of the present invention; but not all embodiments, are based on embodiments in the present invention; all other embodiments obtained by those skilled in the art without undue burden; all falling within the scope of the present invention.
Example 1: the invention discloses a new energy cooling tower permanent magnet motor with a planetary driving mechanism, referring to fig. 1-4, which comprises a motor body, wherein the motor body comprises a shell 1, a transmission main shaft 2, a rotor 3 and a stator 4, wherein a plurality of radiating fins 22 are distributed on the outer end wall of the shell, the transmission main shaft 2, the rotor 3 and the stator 4 are arranged in the shell, the rotor 3 is fixedly sleeved on the end part of the transmission main shaft 2, the stator 4 is fixedly arranged on the inner wall of the shell 1, the other end of the transmission main shaft 2 penetrates through the shell 1 and is fixedly connected with a planetary component, a connected planetary carrier 6 and an outer gear sleeve 5 are sleeved in the planetary component, the outer end wall of the planetary carrier 6 is fixedly connected with the end part of the shell 1, a driven shaft 8 is fixedly arranged on the outer end wall of the planetary carrier 6, a plurality of planetary gears 13 are annularly distributed on the inner side of the planetary carrier 6, a butt joint shaft 15 is fixedly sleeved on the end part of the transmission main shaft 2, the driving gear 14 is fixedly sleeved on the shaft wall of the butt joint shaft 15, the outer end part of the outer gear sleeve 5 is fixedly provided with a mounting sleeve 7 which is sleeved on the outer end part of the planetary carrier 6, the planetary carrier 2 is driven by permanent magnet to rotate, the transmission main shaft 2 drives the transmission main shaft 2, the driving gear 14 is driven by the driving gear 14 to rotate synchronously, and the driving gears 14 are driven by the driving gear 14 and the driving gear 14 rotate;
the left side and the right side of the planet carrier 6 are respectively sleeved with a bearing IV 12 and a bearing III 11 which are fixedly connected with the inner walls of the mounting sleeve 7 and the outer gear sleeve 5, and the bearing IV 12 and the bearing III 11 are additionally arranged, so that the synchronous transmission stability of the planet carrier 6 by the transmission main shaft 2 is further improved.
Referring to fig. 5-8 and fig. 11 and 12, the casing 1 includes an outer annular portion and an inner annular portion far away from one side of the rotor 3, a mounting cavity for mounting the rotor 3 and the stator 4 is reserved between the outer annular portion and the inner annular portion, a plurality of circulation grooves 301 communicated with the mounting cavity are distributed on the rotor 3, a first bearing 9 and a second bearing 10 fixedly mounted on the inner wall of the inner annular portion are sleeved on the end wall of the transmission main shaft 2, a heat dissipation cavity is reserved between the first bearing 9, the second bearing 10 and the inner annular portion, bearing end covers are arranged at the ends, far away from each other, of the first bearing 9 and the second bearing 10, and the bearing end covers are fixedly connected with two ends of the inner annular portion respectively.
The end of the shell 1 far away from the inner annular part is fixedly provided with a sealing cover 18, the inner end of the sealing cover is provided with a heat transfer cold pipe 17, the end part of the transmission main shaft 2 is sleeved with a cooling fan 16 positioned at the inner side of the sealing cover 18, the outer end of the sealing cover 18 is fixedly provided with a water tank 20, the heat transfer cold pipe 17 is in a spiral structure, the inner end and the outer end of the heat transfer cold pipe 17 penetrate through the sealing cover 18 and are connected with the water tank 20 through a circulating pipe 21, a circulating pump is arranged at the circulating pipe 21, the outer end of the sealing cover 18 is fixedly provided with a supporting bracket 19 positioned at the lower end of the water tank 20, the bottom end of the supporting bracket 19 is fixedly connected with a supporting plate for supporting the shell 1, a plurality of mounting grooves are annularly formed in the supporting bracket 19, cooling fins 23 are arranged in each mounting groove, cooling ends of the cooling fins 23 are in fit connection with the inner part of the water tank 20, and cooling blocks 24 matched with the cooling ends of the cooling fins 23 are fixedly arranged on the outer walls of the mounting grooves, a cooling source is circularly circulated by the heat transfer cold pipe 17 through the water tank 20, after the cooling fan 16 is started, hot air at the mounting cavity is guided out outwards and spread to the periphery of the cooling air, and cooled down through the cooling pipes 17.
The shell 1 is provided with an outer annular part and an inner annular part, and the installation parts of the rotor 3 and the stator 4 and the installation parts of the transmission main shaft 2, the first bearing 9 and the second bearing 10 are isolated by the inner annular part, so that excessive heat generated by each heating part is prevented from being influenced mutually;
the casing 1 is internally provided with a backflow channel used for connecting and arranging the installation cavity and the heat dissipation cavity, the backflow channel is utilized for realizing directional air flow between the installation cavity and the heat dissipation cavity, under the pumping of the heat dissipation fan 16, the circulating flow between the installation cavity and the heat dissipation cavity is realized, hot air is pumped out to one side of the heat transfer cold tube 17, and then the cold air cooled by the heat transfer cold tube 17 is redirected back to the installation cavity and the heat dissipation cavity through the backflow channel, so that closed circulating heat exchange is realized, the ventilation holes are not required to be arranged for realizing internal and external air circulation, and the influence of dust accumulation caused by the fact that external air is led into the motor is also effectively avoided on the premise of good heat dissipation.
Example 2: in this embodiment, on the basis of embodiment 1, the reflux passage is optimized and described as follows:
referring to fig. 5-11, the backflow channel includes a plurality of heat dissipation channels 101 opened on the inner wall of the outer annular portion and communicated with the outer end of the installation cavity, the other end of the heat dissipation channels 101 is communicated with the inner end of the installation cavity through a first backflow hole 103 opened on the casing 1, a plurality of connection portions are distributed on the inner annular portion, a second backflow hole 104 communicated with the installation cavity and the inner heat dissipation cavity is opened on each connection portion, the upper end of the second backflow hole 104 is communicated with the heat dissipation channels 101 through a backflow pipe 25, and a plurality of convection holes 105 which are positioned on two sides of the second backflow hole 104 and are also communicated with the installation cavity and the inner heat dissipation cavity are opened on the inner annular portion;
the inner end of the sealing cover 18 is fixedly connected with a circulation ring 181 which is attached to the inner end wall of the outer annular part, a plurality of groups of outer circulation ports 102 which are connected with a plurality of heat dissipation channels 101 are formed in the inner end wall of the outer annular part which is attached to the circulation ring 181, a plurality of inner circulation ports 182 which are corresponding to the positions of the outer circulation ports 102 and are communicated with the outer circulation ports are formed in the inner end wall of the circulation ring 181, when the motor works, the cooling fan 16 is started, the cooling fan 16 pumps out air in the installation cavity and diffuses the air around, the hot air flows through the rotor 3 and the stator 4 to the circulation ring 181 and is cooled through the heat transfer cooling pipe 17, the cooled air is guided into the heat dissipation channels 101, a plurality of cooling fins 22 which are arranged outside the casing 1 are used for further radiating heat sources outwards, the cooled air is guided back into the installation cavity through the heat dissipation channels 101 and the first return holes 103, the cooled air is cooled down for the rotor 3 and the stator 4, and the other parts of the cooled air is guided into the cavity between the first bearing 9 and the second bearing 10 through the return pipes 25 and the second 104, the first bearing 2 and the second bearing 10, the heated air is continuously cooled down in the transmission main shaft 2 and the first bearing 2 and the second bearing 10, the cooling air is continuously cooled down in the rotation environment, and the cooling main shaft is continuously connected with the inner bearing 2, and the cooling fan is continuously cooled in the circulation under the condition of the cooling fan is realized.
Example 3: in this embodiment, on the basis of embodiment 1 and embodiment 2, a plugging assembly for plugging the backflow channel is additionally arranged at the inner annular portion, so as to realize the adjustment of the air circulation condition according to the actual temperature rise condition, and specifically, the following steps are provided:
referring to fig. 8-10, an annular groove which is communicated with a second backflow hole 104 and a convection hole 105 is formed in the inner end wall of the inner annular portion, the annular groove is positioned between the first bearing 9 and the second bearing 10, a plugging assembly is arranged in the annular groove, the plugging assembly comprises a plugging ring 26 which is slidably arranged on the inner wall of the annular groove, and the plugging ring 26 is fixedly connected with the inner wall of the annular groove through a plurality of memory springs 27;
the width of the plugging ring 26 is larger than the outer diameters of the second backflow hole 104 and the convection hole 105, the memory springs 27 are arranged at one side, far away from the second backflow hole 104 and the convection hole 105, of the memory springs 27, the memory springs 27 are made of memory alloy materials, the plugging ring 26 is additionally arranged at the inner side of the inner annular part, the temperature of the rotor 3 and the stator 4 in the installation cavity is gradually increased after the bearing synchronously rotates at a high speed for a period of time until the temperature of the spring phase of the memory springs 27 is reached, the plugging ring 26 is attached to the outer side of the second backflow hole 104 and the convection hole 105, the second backflow hole 104 and the convection hole 105 are plugged, the installation cavity and the heat dissipation cavity are mutually isolated, high heat generated at the position of the rotor 3 and the stator 4 is prevented from being introduced into the heat dissipation cavity through air circulation, on the other hand, the heat dissipation cavity is isolated, the cooling air is sufficiently circulated in the installation cavity, the temperature of the rotor 3 and the stator 4 in the installation cavity is effectively increased, and when the bearing synchronously rotates at a high speed for a period of time, the temperature of the heat dissipation cavity gradually rises until the temperature of the spring phase of the memory springs 27 is reached, the memory springs 27 shrink and the plugging ring 26 is pulled to the side of the second backflow hole 104 and the heat dissipation cavity are synchronously cooled down along with the second backflow hole 104 and the heat dissipation cavity 25.
According to the scheme, the shell 1 is arranged to be an outer annular part and an inner annular part, the inner annular part is utilized to isolate the mounting cavity from the heat dissipation cavity so as to prevent excessive heat generated by each heating part from being influenced mutually, the mounting cavity and the heat dissipation cavity are communicated and arranged through a backflow channel formed in the shell 1, a plugging component for plugging the backflow channel is additionally arranged at the heat dissipation cavity, when the motor initially works, the plugging component is used for isolating the heat dissipation cavity and the mounting cavity, the heat dissipation fan 16 is matched with the heat transfer cold pipe 17, circulation and circulation of cold air between the mounting cavity and the backflow channel are realized, cooling is realized by the rotor 3 and the stator 4, when the temperature of the transmission main shaft 2 and the bearing heating part is gradually increased, the plugging component is shifted, part of cold air is led into the heat dissipation cavity through the backflow channel 4 in the circulation and cooling treatment is carried out on the joint part of the transmission main shaft 2 and the bearing, so that closed circulation heat exchange is realized, ventilation of the inside and outside air is not required to be formed, and dust accumulation is effectively avoided on the premise of playing good heat dissipation effect caused by leading in the outside air into the motor;
in addition, by additionally arranging the plugging component, the air circulation condition is adjusted according to the actual temperature rise condition, namely, only after the temperature in the heat dissipation cavity is gradually increased until the form of the plugging component is changed, the reflux channel between the heat dissipation cavity and the installation cavity and between the heat dissipation channel 101 is opened, the heat dissipation cavity is cooled while the heat dissipation of the installation cavity is realized, and the synchronous cooling treatment is carried out on a plurality of heating parts.
The above; is only a preferred embodiment of the present invention; the scope of the invention is not limited in this respect; any person skilled in the art is within the technical scope of the present disclosure; equivalent substitutions or changes are made according to the technical proposal of the invention and the improved conception thereof; are intended to be encompassed within the scope of the present invention.
Claims (9)
1. The utility model provides a new forms of energy cooling tower permanent magnet machine with planetary drive mechanism, includes the motor body, the motor body is including casing (1) that outer end wall distributes has a plurality of fin (22) and install in its inside transmission main shaft (2), rotor (3) and stator (4), its characterized in that: the other end of the transmission main shaft (2) penetrates through the outside of the shell (1) and is fixedly connected with a planetary assembly, a connected planetary carrier (6) and an external gear sleeve (5) are sleeved outside the planetary assembly, the external gear sleeve (5) is fixedly connected with the end part of the shell (1), a driven shaft (8) is fixedly arranged on the outer end wall of the planetary carrier (6), a plurality of planetary gears (13) are annularly distributed on the inner side of the planetary carrier (6), and a driving gear (14) fixedly sleeved with the end part of the transmission main shaft (2) and meshed with the planetary gears (13) is arranged in the middle of the planetary carrier (6);
the machine shell (1) comprises an outer annular part and an inner annular part far away from one side of the rotor (3), a mounting cavity for mounting the rotor (3) and the stator (4) is reserved between the outer annular part and the inner annular part, a plurality of circulation grooves (301) communicated with the mounting cavity are distributed on the rotor (3), a first bearing (9) and a second bearing (10) fixedly mounted on the inner wall of the inner annular part are sleeved on the end wall of the transmission main shaft (2), a heat dissipation cavity is reserved among the first bearing (9), the second bearing (10) and the inner annular part, a sealing cover (18) with an inner end for mounting a heat transfer cooling pipe (17) is fixedly mounted at one end of the machine shell (1) far away from the inner annular part, and a heat dissipation fan (16) positioned on the inner side of the sealing cover (18) is sleeved at the end part of the transmission main shaft (2);
the inner annular part is also provided with a plugging component for plugging the backflow channel.
2. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 1, wherein: the end part of the transmission main shaft (2) is fixedly connected with a butt joint shaft (15), the driving gear (14) is fixedly sleeved on the shaft wall of the butt joint shaft (15), the outer end part of the outer gear sleeve (5) is fixedly provided with a mounting sleeve (7) which is sleeved outside the planet carrier (6), and the left side and the right side of the planet carrier (6) are respectively sleeved with a bearing IV (12) and a bearing III (11) which are fixedly connected with the inner walls of the mounting sleeve (7) and the outer gear sleeve (5).
3. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 1, wherein: and the bearing end covers are respectively arranged at the ends, far away from each other, of the bearing I (9) and the bearing II (10), and are fixedly connected with the two ends of the inner annular part respectively.
4. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 1, wherein: the water tank (20) is fixedly arranged at the outer end of the sealing cover (18), the heat transfer cold pipe (17) is in a spiral structure, and the inner end and the outer end of the heat transfer cold pipe (17) penetrate through the sealing cover (18) and are connected with the water tank (20) through the circulating pipe (21).
5. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 4, wherein: the outer end of the sealing cover (18) is fixedly provided with a supporting bracket (19) positioned at the lower end of the water tank (20), and the bottom end of the supporting bracket (19) is fixedly connected with a supporting plate for supporting the shell (1).
6. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 1, wherein: the heat dissipation device comprises a shell (1), and is characterized in that the heat dissipation channel comprises a plurality of heat dissipation channels (101) which are formed in the inner wall of the outer annular part and are communicated with the outer end part of the installation cavity, the other end of the heat dissipation channel (101) is communicated with the inner end part of the installation cavity through a first backflow hole (103) formed in the shell (1), a plurality of connecting parts are distributed on the inner annular part, each connecting part is provided with a second backflow hole (104) which is communicated with the installation cavity and the inner heat dissipation cavity, the upper end of the second backflow hole (104) is communicated with the heat dissipation channel (101) through a backflow pipe (25), and a plurality of groups of convection holes (105) which are formed in the two sides of the second backflow hole (104) and are also communicated with the installation cavity and the inner heat dissipation cavity are formed in the inner annular part.
7. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 6, wherein: the inner end of the sealing cover (18) is fixedly connected with a circulation ring (181) which is attached to the inner end wall of the outer annular part, a plurality of groups of outflow ports (102) which are communicated with a plurality of heat dissipation channels (101) are formed in the inner end wall which is attached to the outer annular part and the circulation ring (181), and a plurality of inner circulation ports (182) which are corresponding to the positions of the outflow ports (102) and are communicated with each other are formed in the inner end wall of the circulation ring (181).
8. The new energy cooling tower permanent magnet motor with planetary drive mechanism of claim 7, wherein: an annular groove which is communicated with the second backflow hole (104) and the convection hole (105) is formed in the inner end wall of the inner annular portion, the annular groove is located between the first bearing (9) and the second bearing (10), the plugging assembly is installed in the annular groove and comprises a plugging ring (26) which is slidably installed on the inner wall of the annular groove, and the plugging ring (26) is fixedly connected with the inner wall of the annular groove through a plurality of memory springs (27).
9. The new energy cooling tower permanent magnet machine with planetary drive mechanism of claim 8, wherein: the width of the plugging ring (26) is larger than the outer diameters of the backflow hole II (104) and the convection hole (105), a plurality of memory springs (27) are arranged at one side, far away from the backflow hole II (104) and the convection hole (105), of the plugging ring, and the memory springs (27) are made of memory alloy materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410238674.9A CN117856512B (en) | 2024-03-04 | 2024-03-04 | New energy cooling tower permanent magnet motor with planetary driving mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410238674.9A CN117856512B (en) | 2024-03-04 | 2024-03-04 | New energy cooling tower permanent magnet motor with planetary driving mechanism |
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| CN117856512A true CN117856512A (en) | 2024-04-09 |
| CN117856512B CN117856512B (en) | 2024-05-17 |
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| WO2023065404A1 (en) * | 2021-10-22 | 2023-04-27 | 中车株洲电机有限公司 | Active air supply cooling permanent magnet motor and electric locomotive |
| CN219513886U (en) * | 2022-10-20 | 2023-08-11 | 浙江中龙电机股份有限公司 | Motor shell and permanent magnet motor |
| CN220510917U (en) * | 2023-07-24 | 2024-02-20 | 南京望达数字测绘有限公司 | Rotor with cooling fan and gear hub motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016182004A (en) * | 2015-03-24 | 2016-10-13 | 株式会社豊田自動織機 | Motor with reduction gear |
| CN109474111A (en) * | 2017-09-07 | 2019-03-15 | 东芝三菱电机产业***株式会社 | The assemble method of rotating electric machine, segmentation separation structure body and rotating electric machine |
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| WO2023065404A1 (en) * | 2021-10-22 | 2023-04-27 | 中车株洲电机有限公司 | Active air supply cooling permanent magnet motor and electric locomotive |
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| CN117856512B (en) | 2024-05-17 |
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