CN112886758A - Water-cooled permanent magnet synchronous brushless direct current motor - Google Patents
Water-cooled permanent magnet synchronous brushless direct current motor Download PDFInfo
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- CN112886758A CN112886758A CN202110292767.6A CN202110292767A CN112886758A CN 112886758 A CN112886758 A CN 112886758A CN 202110292767 A CN202110292767 A CN 202110292767A CN 112886758 A CN112886758 A CN 112886758A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 24
- 230000017525 heat dissipation Effects 0.000 claims abstract description 65
- 230000001788 irregular Effects 0.000 claims abstract description 55
- 239000000498 cooling water Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims description 51
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000428 dust Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000020169 heat generation Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 230000005653 Brownian motion process Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005537 brownian motion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
-
- 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
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a water-cooled permanent magnet synchronous brushless direct current motor, which comprises a permanent magnet brushless direct current motor body, and a driving rotating shaft and a micromotor which are respectively arranged in the permanent magnet brushless direct current motor body, wherein the outer side wall of an output shaft of the micromotor is provided with a plurality of axial flow fan blades, and the outer side wall of the permanent magnet brushless direct current motor body is fixedly connected with a plurality of U-shaped irregular connecting pipes. According to the invention, the sealing element consisting of the plurality of U-shaped irregular connecting pipes and the plurality of U-shaped heat dissipation connecting pipes is arranged on the outer side wall of the permanent magnet brushless direct current motor body, the axial flow fan blade of the permanent magnet brushless direct current motor body circulates cooling water in the sealing element through the cooling water driving device, and wind generated after the axial flow fan blade rotates blows to the U-shaped heat dissipation connecting pipes and the accelerated heat dissipation device, so that the temperature of the permanent magnet brushless direct current motor body is reduced, the influence of heat generation on the permanent magnet brushless direct current motor body is reduced, and the heat dissipation power of the permanent magnet brushless direct current motor body is improved.
Description
Technical Field
The invention relates to the technical field of brushless direct current motors, in particular to a water-cooled permanent magnet synchronous brushless direct current motor.
Background
The permanent magnet brushless motor is a permanent magnet motor which is phase-changed or current-controlled by an electronic circuit, and has two types of sine wave drive and square wave drive, wherein the permanent magnet brushless motor has a rectangular drive current and is generally called a permanent magnet brushless direct current motor, and the permanent magnet brushless motor has a sine drive current and is generally called a permanent magnet alternating current servo motor, and the permanent magnet brushless motor can be divided into a sensor motor and a sensorless motor according to sensing types.
The existing permanent magnet synchronous brushless direct current motor mostly adopts an air cooling mode, a fan in the motor is used for blowing a heating component for cooling, but the fan has high noise and a heat dissipation effect, the energy loss in the motor is in direct proportion to the volume of the motor, the magnitude of the fan is in proportion to the third power of the linear magnitude of the motor, and the magnitude of the heat dissipation surface of the motor is only the second power of the linear magnitude of the motor, so that when the size of the motor is increased, the heat which needs to be dissipated per unit surface of the motor can be increased, the temperature rise of the motor can be improved, and the heat dissipation efficiency is difficult to be improved by the traditional air cooling type heat dissipation mode.
Disclosure of Invention
The invention aims to solve the problem that the heat dissipation efficiency of a permanent magnet synchronous brushless direct current motor cannot be improved easily in the traditional air cooling mode in the prior art, and provides a water-cooled permanent magnet synchronous brushless direct current motor.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water-cooled permanent magnet synchronous brushless direct current motor comprises a permanent magnet brushless direct current motor body, and a driving rotating shaft and a micromotor which are respectively arranged in the permanent magnet brushless direct current motor body, wherein the outer side wall of an output shaft of the micromotor is provided with a plurality of axial flow fan blades, the outer side wall of the permanent magnet brushless direct current motor body is fixedly connected with a plurality of U-shaped irregular connecting pipes, each U-shaped irregular connecting pipe consists of a U-shaped irregular cooling pipe and two connecting straight pipes, the U-shaped irregular connecting pipes are uniformly distributed on the outer side wall of the permanent magnet brushless direct current motor body in an annular shape, the outer side walls of the adjacent two connecting straight pipes, which are positioned on different U-shaped irregular connecting pipes, are fixedly connected through U-shaped heat dissipation connecting pipes, the inner side wall of each U-shaped irregular cooling pipe is fixedly, the permanent magnet brushless direct current motor is characterized in that the U-shaped irregular connecting pipes and the U-shaped heat dissipation connecting pipes are communicated and arranged, the permanent magnet brushless direct current motor body is close to a fixed ring piece fixedly connected with the outer side wall of the axial flow fan blade, a plurality of L-shaped cooling holes are formed in the outer side wall of the permanent magnet brushless direct current motor body, a plurality of air injection holes are formed in the inner side wall of the fixed ring piece, the air injection holes are arranged at the same side, the L-shaped cooling holes and the air injection holes are communicated and arranged, the inner side wall of the fixed ring piece is provided with a cooling water.
Preferably, the cooling water driving device comprises a plurality of fixing grooves formed in the inner side wall of the fixed ring piece, the inner side wall of each fixing groove is connected with a first rotating shaft in a rotating mode, a plurality of wind power driving plates are fixedly connected to the outer side wall of the first rotating shaft, a supporting plate is fixedly connected to the inner side wall of the straight pipe, a second rotating shaft is fixedly connected to the outer side wall of the supporting plate, a spiral pushing block is fixedly sleeved on the outer side wall of the second rotating shaft, an adaptive irregular ring piece is fixedly connected to the inner side wall of the U-shaped irregular cooling pipe in a sliding mode and is adjacent to the outer side wall of the spiral pushing block and the inner side wall of the adaptive.
Preferably, the accelerated heat dissipation device comprises a plurality of cooling rods fixedly connected to the outer side wall of the U-shaped heat dissipation connecting pipe, the end portions of the cooling rods are fixedly connected to the outer side wall of the dustproof baffle, and the cooling rods penetrate through the outer side wall of the U-shaped heat dissipation connecting pipe and extend into the U-shaped heat dissipation connecting pipe.
Preferably, drive mechanism connects the third pivot on connecting the straight tube inside wall including rotating, third pivot tip runs through in the fixed ring spare lateral wall extends to the fixed slot, first bevel gear, adjacent two have all fixedly cup jointed to first pivot and third pivot lateral wall first bevel gear meshing connection, second pivot and third pivot lateral wall all fixedly cup joint second bevel gear, adjacent two second bevel gear meshing connection.
Preferably, the outer side wall of the adaptive irregular ring piece is fixedly connected with the outer side wall of the heat conducting plate.
Preferably, the rotation directions of two adjacent spiral pushing blocks are opposite.
Preferably, a plurality of air inlets are formed in the outer side wall of the permanent magnet brushless direct current motor body, and dust screens are arranged on the inner side walls of the air inlets.
Preferably, a plurality of heat dissipation air outlets have been seted up to permanent magnet brushless DC motor body lateral wall, heat dissipation air outlet inside wall is equipped with dust guard.
The invention has the beneficial effects that:
1. the cooling water circulation device comprises a U-shaped irregular connecting pipe, a U-shaped heat dissipation connecting pipe, a heat conducting plate, a fixed ring piece, a cooling water driving device and an accelerated heat dissipation device, wherein the outer side wall of a permanent magnet brushless direct current motor body is provided with a sealing piece consisting of a plurality of U-shaped irregular connecting pipes and a plurality of U-shaped heat dissipation connecting pipes, the axial flow fan blade of the permanent magnet brushless direct current motor body circulates cooling water in the sealing piece through the cooling water driving device, and air generated after the axial flow fan blade rotates is blown to the U-shaped heat dissipation connecting pipes and the accelerated heat dissipation device, so that the temperature of the outer side wall of the permanent magnet brushless direct current motor body is reduced, the influence of heating on the permanent magnet brushless direct current motor body is reduced, and the heat dissipation power of the permanent.
2. Under the interaction of the U-shaped irregular connecting pipe, the U-shaped heat dissipation connecting pipe, the heat conducting plate, the L-shaped cooling hole, the fixed ring piece, the cooling water driving device and the accelerating heat dissipation device, the temperature of the permanent magnet brushless direct current motor body is reduced through the cooling water driving device, meanwhile, the temperature and water vapor in the L-shaped cooling hole can also be reduced, the heat dissipation power of the permanent magnet brushless direct current motor body is further improved, and the safety of the device is also improved.
Drawings
Fig. 1 is a schematic structural diagram of a water-cooled permanent magnet synchronous brushless dc motor according to the present invention;
fig. 2 is a schematic structural perspective view of a plurality of U-shaped irregular connection pipes and a plurality of connection straight pipes in a water-cooled permanent magnet synchronous brushless dc motor according to the present invention;
FIG. 3 is a cross-sectional side view of a stationary ring in a water-cooled PMSM according to the present invention;
fig. 4 is a top view of a U-shaped irregular cooling tube on a body of a water-cooled permanent magnet synchronous brushless dc motor according to the present invention;
fig. 5 is a side view of a U-shaped heat dissipation connection tube in a water-cooled permanent magnet synchronous brushless dc motor according to the present invention;
fig. 6 is a schematic structural diagram of a U-shaped irregular connection pipe in a water-cooled permanent magnet synchronous brushless dc motor according to the present invention;
fig. 7 is a cross-sectional view of an L-shaped cooling hole in a water-cooled permanent magnet synchronous brushless dc motor according to the present invention.
In the figure: 1. a permanent magnet brushless DC motor body; 2. driving the rotating shaft; 3. axial flow fan blades; 4. a U-shaped irregular connecting pipe; 5. u-shaped irregular cooling pipes; 6. connecting a straight pipe; 7. a U-shaped heat dissipation connecting pipe; 8. a heat conducting plate; 9. a fixed ring member; 10. fixing grooves; 11. a first rotating shaft; 12. a heat dissipation air outlet; 13. a dust-proof baffle plate; 14. a wind driven plate; 15. a support plate; 16. a second rotating shaft; 17. a spiral pushing block; 18. fitting the irregular ring member; 19. a cooling bar; 20. a third rotating shaft; 21. a first bevel gear; 22. a second bevel gear; 23. an L-shaped cooling hole; 24. air injection holes; 25. an air inlet; 26. a dust screen; 27. a micro-motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-7, a water-cooled permanent magnet synchronous brushless dc motor, including permanent magnet brushless dc motor body 1 and set up drive pivot 2 and micromotor 27 in permanent magnet brushless dc motor body 1 respectively, micromotor 27 output shaft lateral wall is equipped with a plurality of axial compressor fan blades 3, a plurality of heat dissipation air exit 12 have been seted up to permanent magnet brushless dc motor body 1 lateral wall, heat dissipation air exit 12 inside wall is equipped with dust guard 13, a plurality of air intakes 25 have been seted up to permanent magnet brushless dc motor body 1 lateral wall, the air intake 25 inside wall is equipped with dust screen 26.
The blowing direction of the axial flow fan blade 3 is the airflow in the same direction as the axial flow fan blade 3, the micro motor 27 is arranged inside the permanent magnet brushless direct current motor body 1, the micro motor 27 is arranged to drive the axial flow fan blade 3 to rotate, so that the axial flow fan blade 3 rotates to discharge the heat generated inside the permanent magnet brushless direct current motor body 1 when in work from the heat dissipation exhaust outlet 12, the purpose of accelerating the air flow in the permanent magnet brushless direct current motor body 1 is mainly achieved, the permanent magnet brushless direct current motor body 1, the micro motor 27 and the axial flow fan blade 3 are the prior art, and redundant description is not given here.
The outer side wall of the permanent magnet brushless direct current motor body 1 is fixedly connected with a plurality of U-shaped irregular connecting pipes 4, each U-shaped irregular connecting pipe 4 consists of a U-shaped irregular cooling pipe 5 and two connecting straight pipes 6, the plurality of U-shaped irregular connecting pipes 4 are uniformly distributed on the outer side wall of the permanent magnet brushless direct current motor body 1 in an annular shape, the outer side walls of the adjacent two connecting straight pipes 6 positioned on the different U-shaped irregular connecting pipes 4 are fixedly connected through U-shaped heat dissipation connecting pipes 7, it is explained here that the shape of the U-shaped irregular connection pipe 4 is as shown in fig. 2, the U-shaped irregular connection pipe 4 is composed of one U-shaped irregular cooling pipe 5 and two connection straight pipes 6, wherein connect the effect of straight tube 6 mainly playing and connecting adjacent U type irregular cooling pipe 5 and U type heat dissipation connecting pipe 7, it has the cooling water to flow in a plurality of U type irregular connecting pipes 4 and the U type heat dissipation connecting pipe 7.
5 inside wall fixedly connected with heat-conducting plates 8 of the irregular cooling tube of U type, heat-conducting plate 8 mainly plays reinforcing leakproofness and waterproof nature's effect, and the leakproofness is the circulation to the cooling water, and waterproof nature is the brownian motion that prevents the cooling water, reduces in the cooling water vapor gets into permanent magnet brushless DC motor body 1, prevents that steam from damaging inside permanent magnet brushless DC motor body 1.
8 lateral walls of heat-conducting plate and the 1 lateral wall fixed connection of permanent magnet brushless DC motor body, a plurality of U type irregular connecting pipe 4 and a plurality of U type heat dissipation connecting pipe 7 intercommunication set up, U type heat dissipation connecting pipe 7's shape and position are as shown in figure 5, a plurality of U type heat dissipation connecting pipe 7 are located near heat dissipation air exit 12, the purpose that sets up like this is for the convenience axial fan blade 3 to cool down U type heat dissipation connecting pipe 7, thereby reduce the temperature of the cooling water in U type heat dissipation connecting pipe 7, improve the device and to the radiating efficiency of permanent magnet brushless DC motor body 1, improve the work efficiency of permanent magnet brushless DC motor body 1.
Permanent magnet brushless DC motor body 1 is close to the fixed ring piece 9 of lateral wall fixedly connected with of axial fan blade 3, a plurality of L type cooling hole 23 have been seted up to permanent magnet brushless DC motor body 1 lateral wall, a plurality of wind holes 24 have been seted up to fixed ring piece 9 inside wall, homonymy L type cooling hole 23 and the setting of wind hole 24 intercommunication of annotating, adjacent L type cooling hole 23 and the irregular cooling tube 5 of U type set up as figure 7, the purpose that sets up like this is, reduce the brownian motion of cooling water, further reduce in the cooling water vapour gets into permanent magnet brushless DC motor body 1, prevent that steam from damaging inside permanent magnet brushless DC motor body 1, let permanent magnet brushless DC motor body 1 safer.
The inner side wall of the fixed ring part 9 is provided with a cooling water driving device, the cooling water driving device comprises a plurality of fixing grooves 10 formed in the inner side wall of the fixed ring part 9, the inner side wall of each fixing groove 10 is rotatably connected with a first rotating shaft 11, the outer side wall of each first rotating shaft 11 is fixedly connected with a plurality of wind power driving plates 14, the plurality of wind power driving plates 14 are arranged in the fixed ring part 9 close to the axial flow fan blade 3 for exhausting air, the positions of the plurality of wind power driving plates 14 are shown in figure 1, the wind power driving plates 14 extend out of the fixing grooves 10, the purpose of the arrangement is to enable the wind power driving plates 14 to rotate, after the axial flow fan blade 3 rotates, the axial flow fan blade 3 can blow air to the wind power driving plates 14 so as to drive the wind power driving plates 14 to rotate and serve as a driving source for driving cooling water circulation, the driving source, thereby slow down the temperature in the L type cooling hole 23, L type cooling hole 23 is seted up in permanent magnet brushless DC motor body 1 to further improve the device to permanent magnet brushless DC motor body 1's radiating efficiency, and then improve permanent magnet brushless DC motor body 1's efficiency.
It is worth noting that the rotation directions of two adjacent spiral pushing blocks 17 are opposite, that is, the rotation directions of two adjacent second rotating shafts 16 are opposite, the purpose of setting is to make the directions of cooling water in two adjacent U-shaped irregular cooling pipes 5 opposite, so as to make the cooling water in one U-shaped irregular connecting pipe 4 circulate in one direction, and in the cooperation of the connecting straight pipes 6, the sealing member composed of a plurality of U-shaped irregular connecting pipes 4 and a plurality of connecting straight pipes 6 in fig. 2 is made, and the cooling water in the assembly in fig. 2 is circulated by the cooling water driving device under the condition of ensuring the sealing performance, so that the heat dissipation of the permanent magnet brushless direct current motor body 1 is more convenient.
The inner side wall of the U-shaped irregular cooling pipe 5 is fixedly connected with an adaptive irregular ring piece 18, the outer side wall of each adjacent spiral pushing block 17 is in sliding connection with the inner side wall of the adaptive irregular ring piece 18, the outer side wall of each adaptive irregular ring piece 18 is fixedly connected with the outer side wall of the heat conducting plate 8, the shape and the position of each adaptive irregular ring piece 18 are shown in figure 3, and the purpose of setting the adaptive irregular ring pieces 18 is to enable cooling water to better circulate under the driving of the spiral pushing blocks 17.
Adjacent first pivot 11 and second pivot 16 pass through drive mechanism and connect, drive mechanism is including rotating the third pivot 20 of connection on connecting the straight tube 6 inside wall, and the third pivot 20 tip runs through in the lateral wall of retaining ring 9 extends to fixed slot 10, and first pivot 11 and the 20 lateral walls of third pivot are all fixed the cover and are connected with first bevel gear 21, and two adjacent first bevel gear 21 mesh are connected, and second pivot 16 and the 20 lateral walls of third pivot are all fixed the cover and are connected with second bevel gear 22, and two adjacent second bevel gear 22 mesh are connected.
7 lateral walls of U type heat dissipation connecting pipe are equipped with heat abstractor with higher speed, heat abstractor includes a plurality of cooling sticks 19 on the 7 lateral walls of fixed connection U type heat dissipation connecting pipe with higher speed, 19 tip of cooling stick and 13 lateral wall fixed connection of dust guard, cooling stick 19 runs through 7 lateral walls of U type heat dissipation connecting pipe and extends to in the U type heat dissipation connecting pipe 7, the setting of cooling stick 19 is exactly for accelerating the cooling of cooling water, regard cooling stick 19 as the connecting piece of dust guard 13 and U type heat dissipation connecting pipe 7 simultaneously, be for strengthening the stability of U type heat dissipation connecting pipe 7.
It is worth noting that the bottom of one of the U-shaped heat dissipation connecting pipes 7 is provided with a water outlet, the top of one of the connecting straight pipes 6 is provided with a water injection hole, the water outlet and the water injection hole are not drawn in the figure, and the water outlet and the water injection hole are mainly used for adding and replacing cooling water.
The working principle is as follows: after the permanent magnet brushless direct current motor body 1 is started, the micro motor 27 is also started at the same time to drive the rotating shaft 2 to rotate, heat is generated in the permanent magnet brushless direct current motor body 1, the outer side wall of the permanent magnet brushless direct current motor body 1 is heated, and the heat is transferred to cooling water through the heat conduction plate 8;
an output shaft of the micro motor 27 drives an axial flow fan blade 3 to rotate, the axial flow fan blade 3 blows wind in the permanent magnet brushless direct current motor body 1 to the fixed ring part 9 and the plurality of U-shaped heat dissipation connecting pipes 7 from the heat dissipation air outlet 12, when the wind blows the wind to the U-shaped heat dissipation connecting pipes 7, the temperature of the U-shaped heat dissipation connecting pipes 7 can be reduced, when the wind passes through the plurality of wind power driving plates 14, the plurality of wind power driving plates 14 on the same side drive the first rotating shaft 11 to rotate, the first rotating shaft 11 drives the third rotating shaft 20 to rotate through the meshing of the two first bevel gears 21, the third rotating shaft 20 drives the second rotating shaft 16 to rotate through the meshing of the two second bevel gears 22, and the second rotating shaft 16 drives the spiral pushing block 17 to;
the two spiral pushing blocks 17 in one U-shaped irregular connecting pipe 4 rotate in opposite directions, so that cooling water flows in one direction in the U-shaped irregular connecting pipe 4, as shown in FIG. 2, the cooling water circulates in the connecting straight pipe 6, wherein when the connecting straight pipe 6 passes through, the temperature of the U-shaped heat dissipation connecting pipe 7 can be reduced by the wind generated by the rotation of the axial flow fan blade 3, so that the temperature of the cooling water in the U-shaped heat dissipation connecting pipe 7 is reduced, meanwhile, the temperature of the cooling water is further reduced by the plurality of cooling rods 19, so that the heat generation of the permanent magnet brushless DC motor body 1 is reduced, the influence of the heat generation on the permanent magnet brushless DC motor body 1 is reduced, the temperature of the outer side wall of the permanent magnet brushless DC motor body 1 is reduced, accidents caused by the overhigh temperature of the outer side wall of the permanent magnet brushless DC motor body 1 are reduced, and the permanent magnet, the safety is higher;
simultaneously, the plurality of wind power driving plates 14 also blow air into the L-shaped cooling holes 23 after rotating, so that the temperature in the L-shaped cooling holes 23 is reduced, the L-shaped cooling holes 23 are formed in the permanent magnet brushless direct current motor body 1, and under the condition that the working efficiency of the permanent magnet brushless direct current motor body 1 is not reduced, the inside air cooling and the outer side wall water cooling can effectively improve the heat dissipation efficiency of the device to the permanent magnet brushless direct current motor body 1, so that the permanent magnet brushless direct current motor body 1 can work better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A water-cooled permanent magnet synchronous brushless direct current motor comprises a permanent magnet brushless direct current motor body (1), and a driving rotating shaft (2) and a micromotor (27) which are respectively arranged in the permanent magnet brushless direct current motor body (1), wherein the outer side wall of an output shaft of the micromotor (27) is provided with a plurality of axial flow fan blades (3), the water-cooled permanent magnet synchronous brushless direct current motor is characterized in that the outer side wall of the permanent magnet brushless direct current motor body (1) is fixedly connected with a plurality of U-shaped irregular connecting pipes (4), each U-shaped irregular connecting pipe (4) consists of a U-shaped irregular cooling pipe (5) and two connecting straight pipes (6), the U-shaped irregular connecting pipes (4) are uniformly distributed on the outer side wall of the permanent magnet brushless direct current motor body (1) in an annular manner, the outer side walls of the two adjacent connecting straight pipes (6) on different U-shaped irregular connecting pipes (4) are, the inner side wall of the U-shaped irregular cooling pipe (5) is fixedly connected with a heat conducting plate (8), the outer side wall of the heat conducting plate (8) is fixedly connected with the outer side wall of the permanent magnet brushless direct current motor body (1), a plurality of U-shaped irregular connecting pipes (4) are communicated with a plurality of U-shaped heat dissipation connecting pipes (7), the outer side wall of the permanent magnet brushless direct current motor body (1) close to the axial flow fan blade (3) is fixedly connected with a fixed ring piece (9), the outer side wall of the permanent magnet brushless direct current motor body (1) is provided with a plurality of L-shaped cooling holes (23), a plurality of air injection holes (24) are formed in the inner side wall of the fixed ring piece (9), the L-shaped cooling hole (23) and the air injection holes (24) are arranged on the same side in a communicating manner, the inner side wall of the fixed ring piece (9) is provided with a cooling water driving device, and the outer side wall of the U-shaped heat dissipation connecting pipe (7) is provided with an accelerated heat dissipation device.
2. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 1, wherein the cooling water driving device comprises a plurality of fixing grooves (10) formed in the inner side wall of the fixed ring member (9), the inner side wall of the fixing grooves (10) is rotatably connected with a first rotating shaft (11), the outer side wall of the first rotating shaft (11) is fixedly connected with a plurality of wind power driving plates (14), the inner side wall of the connecting straight pipe (6) is fixedly connected with a supporting plate (15), the outer side wall of the supporting plate (15) is fixedly connected with a second rotating shaft (16), the outer side wall of the second rotating shaft (16) is fixedly sleeved with a spiral pushing block (17), the inner side wall of the U-shaped irregular cooling pipe (5) is fixedly connected with an adaptive irregular ring member (18), and the outer side wall of the adjacent spiral pushing block (17) is slidably connected with the, the adjacent first rotating shaft (11) and the second rotating shaft (16) are connected through a transmission mechanism.
3. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 1, wherein the accelerated heat dissipation device comprises a plurality of cooling rods (19) fixedly connected to the outer side wall of the U-shaped heat dissipation connection pipe (7), the end portions of the cooling rods (19) are fixedly connected to the outer side wall of the dustproof baffle (13), and the cooling rods (19) penetrate through the outer side wall of the U-shaped heat dissipation connection pipe (7) and extend into the U-shaped heat dissipation connection pipe (7).
4. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 2, wherein the transmission mechanism comprises a third rotating shaft (20) rotatably connected to the inner side wall of the connecting straight pipe (6), the end of the third rotating shaft (20) penetrates through the outer side wall of the fixed ring member (9) and extends into the fixed groove (10), the outer side walls of the first rotating shaft (11) and the third rotating shaft (20) are fixedly sleeved with first bevel gears (21), two adjacent first bevel gears (21) are in meshed connection, the outer side walls of the second rotating shaft (16) and the third rotating shaft (20) are fixedly sleeved with second bevel gears (22), and two adjacent second bevel gears (22) are in meshed connection.
5. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 2, wherein the outer side wall of the adaptive irregular ring member (18) is fixedly connected with the outer side wall of the heat conducting plate (8).
6. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 2, wherein the rotation directions of two adjacent spiral pushing blocks (17) are opposite.
7. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 1, wherein a plurality of air inlets (25) are formed on the outer side wall of the permanent magnet brushless direct current motor body (1), and a dust screen (26) is arranged on the inner side wall of each air inlet (25).
8. The water-cooled permanent magnet synchronous brushless direct current motor according to claim 1, wherein a plurality of heat dissipation air outlets (12) are formed on the outer side wall of the permanent magnet brushless direct current motor body (1), and dustproof baffles (13) are arranged on the inner side wall of the heat dissipation air outlets (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110292767.6A CN112886758A (en) | 2021-03-18 | 2021-03-18 | Water-cooled permanent magnet synchronous brushless direct current motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110292767.6A CN112886758A (en) | 2021-03-18 | 2021-03-18 | Water-cooled permanent magnet synchronous brushless direct current motor |
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| CN202110292767.6A Pending CN112886758A (en) | 2021-03-18 | 2021-03-18 | Water-cooled permanent magnet synchronous brushless direct current motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243985A (en) * | 2021-12-24 | 2022-03-25 | 江苏航天动力机电有限公司 | Permanent magnet motor with turnover type active protection heat dissipation mechanism |
| CN116436214A (en) * | 2023-03-07 | 2023-07-14 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
| CN118432321A (en) * | 2024-07-05 | 2024-08-02 | 河南全新机电设备有限公司 | Permanent magnet motor liquid cooling structure and application thereof |
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| CN212210754U (en) * | 2020-07-22 | 2020-12-22 | 宿迁学院 | Flat rare earth permanent magnet brushless direct current motor |
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| CN206379815U (en) * | 2017-01-18 | 2017-08-04 | 衢州艾尚工业设计有限公司 | A kind of permanent-magnet brushless DC electric machine of good heat dissipation effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243985A (en) * | 2021-12-24 | 2022-03-25 | 江苏航天动力机电有限公司 | Permanent magnet motor with turnover type active protection heat dissipation mechanism |
| CN116436214A (en) * | 2023-03-07 | 2023-07-14 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
| CN116436214B (en) * | 2023-03-07 | 2024-03-22 | 华能澜沧江水电股份有限公司 | Air duct cooling device of generator |
| CN118432321A (en) * | 2024-07-05 | 2024-08-02 | 河南全新机电设备有限公司 | Permanent magnet motor liquid cooling structure and application thereof |
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Application publication date: 20210601 |