CN116404810A - Permanent magnet brushless motor structure and method based on water pump - Google Patents
Permanent magnet brushless motor structure and method based on water pump Download PDFInfo
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- CN116404810A CN116404810A CN202310140364.9A CN202310140364A CN116404810A CN 116404810 A CN116404810 A CN 116404810A CN 202310140364 A CN202310140364 A CN 202310140364A CN 116404810 A CN116404810 A CN 116404810A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000017525 heat dissipation Effects 0.000 claims description 80
- 230000005540 biological transmission Effects 0.000 claims description 66
- 238000002955 isolation Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/10—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
- H02K9/12—Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a permanent magnet brushless motor structure and a method based on a water pump, and relates to the technical field of brushless motors.
Description
Technical Field
The invention relates to the technical field of brushless motors, in particular to a permanent magnet brushless motor structure and a permanent magnet brushless motor method based on a water pump.
Background
Compared with a brush motor, the brushless motor has the characteristics of simple structure, small volume, high efficiency, long service life and the like, and is widely applied to various industries, in particular to the electric tool industry. The pump is used as an industrial electric appliance with higher use frequency, and most of driving elements of the pump are plastic package direct current brushless motors. For example, the air pump needs continuous transport air in the in-process of oxygen production, the liquid pump needs continuous transport liquid in the in-process of carrying liquid, current plastic envelope direct current brushless motor is because there is not air inlet and gas outlet for the motor is unable quick discharge at the in-process internal heat, leads to the line group to cause the damage because of the high temperature easily, to this heat dissipation problem, the patent of current patent publication number CN115208116B has disclosed a plastic envelope direct current brushless motor, this scheme output shaft rotatory in-process can drive first piston up-and-down back and forth movement in the water drum, thereby drive the cooling water in the water drum and flow in the water pipe back and forth, thereby take away the inside heat of stator. The second piston is driven to move up and down in the inflator in the rotating process of the output shaft, so that external air is intermittently input into the shell to ventilate and dissipate heat in the shell.
However, the heat dissipation driving source in the motor is driven by using the reciprocating screw thread on the transmission shaft, but the rotating speed of the brushless motor is very high, the reciprocating screw thread transmission can cause serious abrasion of parts, the screw thread transmission is suitable for low-speed transmission, and the heat dissipation mode seriously influences the power output.
Based on the structure and the method, the permanent magnet brushless motor structure and the method based on the water pump can eliminate the defects of the prior device.
Disclosure of Invention
The invention aims to provide a permanent magnet brushless motor structure and a permanent magnet brushless motor method based on a water pump, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a permanent magnet brushless motor structure based on water pump, includes the motor casing of setting in water pump shell one side, motor casing intermediate position rotates and is equipped with a transmission shaft, the inside pump vane hub connection of transmission shaft upper end and water pump shell is fixed, the inside transmission shaft outside of motor casing distributes and has a plurality of stator, the inside motor casing outside is equipped with an isolation section of thick bamboo, array distribution has a plurality of stator on the isolation section of thick bamboo, the motor casing outside distributes has the heat dissipation strip group, isolation section of thick bamboo upper end is equipped with the first through-hole that is used for exhaust, the motor casing lower extreme is equipped with a heat dissipation medium case, be equipped with the circulation radiator that is used for promoting the air current circulation flow between the two between heat dissipation medium case and the motor casing.
Based on the technical scheme, the invention also provides the following optional technical schemes:
in one alternative: the circulating heat dissipation component comprises a plurality of circulating air sleeves arranged inside a heat dissipation medium box, a reciprocating piston block is slidably matched in the circulating air sleeves, a piston rod is arranged at the outer end of the reciprocating piston block, a pushing block is arranged at the outer end of the piston rod, the pushing block is fixedly connected with the end part of the circulating air sleeve through a first spring, a unidirectional exhaust pipe used for exhausting is arranged at the lower side of the circulating air sleeve, a unidirectional air guide pipe used for unidirectional air inlet is arranged at the upper end of the circulating air sleeve, the other end of the unidirectional air guide pipe is communicated with a motor casing, the upper end of the unidirectional air guide pipe is positioned at the outer side of an isolation cylinder, an air inlet through hole used for unidirectional air inlet is formed in the inner side of the isolation cylinder, and a pushing mechanism used for intermittently generating acting force on the pushing block is arranged on a transmission shaft and provides power for the reciprocating piston block to work when the pushing mechanism is higher than a set value in the motor casing.
In one alternative: the pushing mechanism comprises a transmission column arranged at the lower end of a transmission shaft in a sliding manner, the lower end of the transmission shaft extends to the inside of a heat dissipation medium box, a rotary limiting part for limiting relative rotation of the transmission column and the transmission shaft is arranged between the transmission column and the transmission shaft, an expansion filling cavity is arranged in the transmission shaft, expansion filling filler is filled in the expansion filling cavity, a piston block is arranged at the lower end of the expansion filling cavity in a sliding manner, the lower end of the piston block is connected with a transmission push rod, the other end of the transmission push rod is fixedly connected with the transmission column, a plurality of fourth magnet blocks are distributed on the outer side array of the upper end of the transmission column, and a second magnet is embedded on the surface of each pushing block, and mutual repulsion is achieved between the second magnet and the fourth magnet blocks.
In one alternative: and a plurality of cooling fins are distributed on the outer side surface of the cooling medium box.
In one alternative: the cooling medium box is characterized in that a rotating disc is arranged below the cooling medium box, a bearing ring is rotationally arranged on the outer side of the rotating disc, the bearing ring is fixedly connected with the cooling medium box through a positioning rod, a plurality of mounting holes are distributed in an array mode on the rotating disc, fan blades for pushing airflow to flow are arranged at the positions of each mounting hole, a driving ring is arranged at the middle position of the upper end of the rotating disc, a plurality of third magnet blocks are distributed in an array mode on the inner side of the driving ring, the lower end of a driving column penetrates through a through hole in the lower end of the cooling medium box, a plurality of first magnets are distributed in an array mode on the outer side of the lower end of the driving column, and mutual attraction is achieved between the first magnets and the third magnet blocks.
In one alternative: the rotary limiting piece comprises a limiting groove arranged on the inner wall of the piston column and a limiting protrusion arranged on the outer side of the transmission shaft.
In one alternative: the heat dissipation medium box is characterized in that a heat exchange ring box with an annular structure is arranged on the outer side of the heat dissipation medium box, one side of the heat exchange ring box is communicated with a water inlet position of the water pump shell through a guide water inlet pipe, and a drainage circulating pipe communicated with a drainage position of the water pump shell is arranged on the other side of the heat exchange ring box.
In one alternative: be equipped with the atomizing piece that is used for spraying water smoke between rolling disc and the heat dissipation medium case, the atomizing piece includes the spray ring of being connected with the locating lever, the spray ring inboard is equipped with the atomizer that a plurality of is used for spraying, the water inlet end of spray ring communicates with the heat transfer ring case through the delivery pipe, be equipped with the valve body on the delivery pipe, be equipped with a shutoff valve plate in the valve body, it is equipped with a valve pocket that is used for cutting sealedly to slide in the shutoff valve plate, the valve pocket lower extreme is connected with the atress board through the slide bar, through second spring coupling between atress board and the valve body, the rolling disc outside is equipped with the side lever, and the side lever tip is equipped with the butt pinch roller that is used for producing thrust to the atress board downside.
Compared with the prior art, the invention has the following beneficial effects:
the invention is designed aiming at the defects of the prior art, adopts magnetic transmission, eliminates the abrasion problem caused by the use of screw transmission in the prior art, greatly prolongs the service life of the parts, ensures thermal expansion by transmission, and ensures that the heat dissipation structure can be triggered sequentially along with continuous expansion of the expansion filler, so that the heat dissipation effect of the motor is gradually upgraded, thereby avoiding the waste of resources and having strong practicability.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the lower side of the present invention.
FIG. 3 is a schematic view of the structure of the present invention.
Fig. 4 is an enlarged view of a portion of the structure of the present invention.
Fig. 5 is a schematic view of a heat sink according to the present invention.
Fig. 6 is a schematic view of the upper end structure of the rotating disc of the present invention.
Reference numerals annotate: the water pump shell 11, the motor shell 12, the first through hole 13, the stator 14, the expansion filling cavity 15, the piston block 16, the transmission push rod 17, the heat dissipation medium box 18, the air inlet through hole 19, the piston column 20, the transmission column 21, the rotating disc 22, the fan blade 23, the first magnet 24, the second magnet 25, the pushing block 26, the third magnet block 27, the transmission ring 28, the first spring 29, the one-way exhaust pipe 30, the circulating air sleeve 31, the heat dissipation sheet 32, the heat exchange ring box 33, the reciprocating piston block 34, the one-way air guide pipe 35, the guide water inlet pipe 36, the transmission shaft 37, the fourth magnet block 38, the valve body 40, the spray ring 41, the atomizing nozzle 42, the second spring 43, the pressing wheel 44, the stress plate 45, the valve cavity 46 and the plugging valve plate 47.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
Example 1
In one embodiment, as shown in fig. 1-6, a permanent magnet brushless motor structure based on a water pump comprises a motor casing 12 arranged on one side of a water pump casing 11, wherein a transmission shaft 37 is rotatably arranged in the middle of the motor casing 12, the upper end of the transmission shaft 37 is fixedly connected with a pump vane shaft in the water pump casing 11, a plurality of stators are distributed on the outer side of the transmission shaft 37 in the motor casing 12, an isolation cylinder is arranged in the motor casing 12 on the outer side of the stators, a plurality of stators 14 are distributed on the isolation cylinder in an array manner, a heat dissipation strip group is distributed on the outer side of the motor casing 12 and used for enabling the motor to dissipate heat automatically, a first through hole 13 used for exhausting is formed in the upper end of the isolation cylinder, a heat dissipation medium box 18 is arranged at the lower end of the motor casing 12, and a circulating heat dissipation component used for promoting circulation flow between the heat dissipation medium box 18 and the motor casing 12 is arranged;
the circulating heat dissipation component comprises a plurality of circulating air sleeves 31 arranged in the heat dissipation medium box 18, a reciprocating piston block 34 is slidingly matched in the circulating air sleeves 31, a piston rod is arranged at the outer end of the reciprocating piston block 34, a pushing block 26 is arranged at the outer end of the piston rod, the pushing block 26 is fixedly connected with the end part of the circulating air sleeve 31 through a first spring 29, a unidirectional exhaust pipe 30 for exhausting is arranged at the lower side of the circulating air sleeves 31, a unidirectional air guide pipe 35 for unidirectional air inlet is arranged at the upper end of the circulating air sleeves 31, the other end of the unidirectional air guide pipe 35 is communicated with a motor shell 12, the upper end of the unidirectional air guide pipe 35 is positioned at the outer side of an isolation cylinder, an air inlet through hole 19 for unidirectional air inlet is arranged at the inner side of the isolation cylinder, a pushing mechanism for intermittently generating acting force on the pushing block 26 is arranged on a transmission shaft 37, when the pushing mechanism is higher than a set value in the motor casing 12, power is provided for the reciprocating piston block 34 to work, under the action of the pushing mechanism, the reciprocating piston block 34 reciprocates in the circulating air jacket 31, and because the unidirectional exhaust pipe 30 and the unidirectional air guide pipe 35 are in unidirectional conduction, under the action of the reciprocating piston block 34, air in the heat dissipation medium box 18 enters a gap between the stator 14 and the rotor along the air inlet through hole 19, then is discharged to the outer side of the isolation cylinder along the first through hole 13, finally returns to the circulating air jacket 31 along the unidirectional air guide pipe 35, and enters the heat dissipation medium box 18 through the unidirectional exhaust pipe 30, so that air flow can circulate between the motor casing 12 and the heat dissipation medium box 18, and the stator and the rotor are dissipated, and the problem of dust entering is avoided by the internal circulation heat dissipation mode;
the unidirectional air inlet and the unidirectional air outlet only need to be provided with the unidirectional valve;
the pushing mechanism comprises a driving column 21 arranged at the lower end of a driving shaft 37 in a sliding manner, the lower end of the driving shaft 37 extends into the heat dissipation medium box 18, a rotation limiting part for limiting the relative rotation of the driving column 21 and the driving shaft 37 is arranged between the driving column and the driving shaft 37, an expansion filling cavity 15 is arranged in the driving shaft 37, expansion filling filler is filled in the expansion filling cavity 15, a piston block 16 is arranged at the lower end of the expansion filling cavity 15 in a sliding manner, the lower end of the piston block 16 is connected with a driving push rod 17, the other end of the driving push rod 17 is fixedly connected with the driving column 21, a plurality of fourth magnet blocks are distributed at the outer side of the upper end of the driving column 21 in an array manner, a second magnet 25 is embedded on the surface of each pushing block 26, the second magnet 25 and the fourth magnet blocks 38 repel each other, when the motor can radiate heat by means of the heat radiation strip group, the expansion filler is not expanded, the fourth magnet block is staggered with the second magnet 25, kinetic energy is not acquired from the transmission shaft 37 at the moment, the rotating speed of the transmission shaft 37 is guaranteed, when the heat radiation effect of the heat radiation strip group cannot meet the requirement, the temperature of the expansion filler is increased, the piston block 16 is pushed to move downwards, the piston block 16 pushes the transmission column 21 to move downwards through the transmission push rod 17, so that the fourth magnet block 38 corresponds to the second magnet 25, when the fourth magnet block 38 rotates to the position of the second magnet 25, the second magnet 25 is subjected to extrusion force under the action of magnetic force, and the second magnet 25 drives the reciprocating piston block 34 to move, so that power is provided for ventilation;
the heat dissipation driving force is started only when the internal temperature of the expansion filling cavity 15 is higher than a set value, and the heat dissipation driving force is not triggered when the motor rotates at a low speed, so that unnecessary waste is avoided, and mercury can be selected as the expansion filling material;
in order to further improve the heat dissipation effect, the outer side surface of the heat dissipation medium box 18 is distributed with a plurality of heat dissipation fins 32, and the heat dissipation area of the heat dissipation fins 32 is effectively improved;
in order to accelerate the air flow on the surface of the heat dissipation medium box 18, a rotating disc 22 is arranged below the heat dissipation medium box 18, a bearing ring is rotationally arranged on the outer side of the rotating disc 22 and is fixedly connected with the heat dissipation medium box 18 through a positioning rod, a plurality of mounting holes are distributed on the rotating disc 22 in an array mode, a fan blade 23 for pushing air flow to flow is arranged at the position of each mounting hole, a driving ring 28 is arranged in the middle of the upper end of the rotating disc 22, a plurality of third magnet blocks 27 are distributed on the inner side of the driving ring 28 in an array mode, the lower end of a driving column 21 penetrates through a through hole on the lower end of the heat dissipation medium box 18, a plurality of first magnets 24 are distributed on the outer side of the lower end of the driving column 21 in an array mode, the first magnets 24 and the third magnet blocks 27 are attracted with each other, when the expansion filler in the expansion filling cavity 15 continuously expands, the first magnets 24 extend into the driving ring 28, the first magnets 24 and the third magnet blocks 27 interact to form a rotating moment, and accordingly the rotating disc 22 is driven to rotate, the driving disc 23 is accelerated to rotate rapidly, the driving ring 23 penetrates through a through hole on the lower end of the through hole of the heat dissipation medium box 18, and heat dissipation medium is lost out of the heat dissipation medium box 18;
it should be noted that, the length of the fourth magnet 38 is greater than the length of the first magnet 24, when the fourth magnet 38 triggers the second magnet 25, the first magnet 24 is not close to the third magnet 27, and when the first magnet 24 is close to the third magnet 27, the fourth magnet 38 still triggers the second magnet 25, so that the air blowing heat dissipation is the third-order heat dissipation;
the rotation limiting piece comprises a limiting groove arranged on the inner wall of the piston column 20 and a limiting protrusion arranged on the outer side of the transmission shaft 37, and the transmission shaft 37 and the piston column 20 can not rotate relatively and only slide relatively due to the arrangement of the limiting protrusion and the limiting groove;
the embodiment discloses a permanent magnet brushless motor structure based on a water pump, wherein, when a heat dissipation strip group can meet the motor requirement in the initial stage, the rest heat dissipation structures do not work;
when the heat dissipation bar group cannot meet the heat dissipation requirement, the temperature of the expansion filler is increased, the piston block 16 is pushed to move downwards, the piston block 16 pushes the transmission column 21 to move downwards through the transmission push rod 17, so that the fourth magnet block 38 corresponds to the second magnet 25, when the fourth magnet block 38 rotates to the position of the second magnet 25, the second magnet 25 is subjected to extrusion force under the action of magnetic force, the second magnet 25 drives the reciprocating piston block 34 to move so as to provide power for ventilation, under the action of the reciprocating piston block 34, gas in the heat dissipation medium box 18 enters a gap between the stator 14 and the rotor along the air inlet through hole 19, then is discharged to the outside of the isolation cylinder along the first through hole 13, finally returns to the circulating air guide tube 35 to the circulating air sleeve 31, and then enters the heat dissipation medium box 18 through the unidirectional exhaust tube 30, so that air flow can circulate between the motor shell 12 and the heat dissipation medium box 18, and heat dissipation is carried out on the stator and the rotor;
when the heat dissipation mode still cannot meet the heat dissipation requirement, and the expansion filler in the expansion filling cavity 15 continuously expands, the first magnet 24 extends into the transmission ring 28, and the first magnet 24 and the third magnet 27 interact to form a rotation moment, so that the rotating disc 22 is driven to rotate, the fan blades 23 are further enabled to rotate rapidly, air is accelerated to blow to the heat dissipation medium box 18, and heat loss of the heat dissipation medium box 18 is further accelerated;
the transmission mode in this application adopts magnetic force transmission, has cancelled the wearing and tearing problem that utilizes screw drive to cause among the prior art, very big improvement the life of part.
Example 2
The difference from example 1 is that: in order to improve the heat dissipation effect, a heat exchange ring box 33 with a ring structure is arranged at the outer side of the heat dissipation medium box 18, one side of the heat exchange ring box 33 is communicated with the water inlet position of the water pump shell 11 through a guide water inlet pipe 36, a drain circulation pipe communicated with the water outlet position of the water pump shell 11 is arranged at the other side of the heat exchange ring box 33, and when in actual use, water in the water pump shell 11 can enter the heat exchange ring box 33 along the guide water inlet pipe 36 and then be discharged along the drain circulation pipe, so that the heat dissipation medium box 18 can be dissipated by utilizing water flow in the water pump, and the diameter of the guide water inlet pipe 36 is smaller, so that the normal work of the water pump is not affected.
Example 3
The difference from example 2 is that: in order to improve the heat dissipation effect of air cooling, an atomization piece for spraying water mist is arranged between the rotating disc 22 and the heat dissipation medium box 18, and the water mist is sprayed between the rotating disc 22 and the heat dissipation medium box 18 by utilizing the atomization piece, so that the water mist can be used for reducing the temperature by evaporating and absorbing heat on the surface of the heat dissipation medium box 18;
the atomizing piece includes the spray ring 41 that is connected with the locating lever, the spray ring 41 inboard is equipped with a plurality of atomizer 42 that is used for the spraying, the water inlet end of spray ring 41 communicates with heat transfer ring case 33 through the delivery pipe, be equipped with valve body 40 on the delivery pipe, be equipped with a shutoff valve plate 47 in the valve body 40, slide in the shutoff valve plate 47 and be equipped with one and be used for cutting off sealed valve pocket 46, the valve pocket 46 lower extreme is connected with atress board 45 through the slide bar, connect through second spring 43 between atress board 45 and the valve body 40, the rotor 22 outside is equipped with the side lever, and the side lever tip is equipped with the butt pinch roller 44 that is used for producing thrust to atress board 45 downside, and in the effect of second spring 43, valve pocket 46 will shutoff valve plate 47 shutoff, and rivers can not get into spray ring 41 this moment, and when rotor 22 rotates, butt pinch roller 44 can intermittently produce decurrent effort to atress board 45, under the promotion of butt pinch roller 44, the removal of valve pocket 46 can be to the shutoff of shutoff 47, and then make water get into spray ring 41, from atomizer 42, and the effect under the rapid evaporation of the air current can be cooled down to the transient help.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a permanent magnet brushless motor structure based on water pump, includes motor casing (12) that sets up in water pump casing (11) one side, motor casing (12) intermediate position rotates and is equipped with a transmission shaft (37), transmission shaft (37) upper end is fixed with the inside pump vane axle connection of water pump casing (11), the inside transmission shaft (37) outside of motor casing (12) distributes and has a plurality of stator, motor casing (12) outside is equipped with an isolation section of thick bamboo inside, the array distributes on the isolation section of thick bamboo has a plurality of stator (14), motor casing (12) outside distributes and has the radiating strip group;
the motor is characterized in that a first through hole (13) for exhausting is formed in the upper end of the isolation cylinder, a heat dissipation medium box (18) is arranged at the lower end of the motor shell (12), and a circulating heat dissipation part for promoting circulating flow of air flow between the heat dissipation medium box (18) and the motor shell (12) is arranged between the heat dissipation medium box and the motor shell.
2. The permanent magnet brushless motor structure based on the water pump according to claim 1, characterized in that the circulating heat dissipation component comprises a plurality of circulating air sleeves (31) arranged in the heat dissipation medium box (18), a reciprocating piston block (34) is slidably matched in the circulating air sleeves (31), a piston rod is arranged at the outer end of the reciprocating piston block (34), a pushing block (26) is arranged at the outer end of the piston rod, the pushing block (26) is fixedly connected with the end part of the circulating air sleeve (31) through a first spring (29), a unidirectional exhaust pipe (30) used for exhausting is arranged at the lower side of the circulating air sleeve (31), a unidirectional air guide pipe (35) used for unidirectional air inlet is arranged at the upper end of the circulating air sleeve (31), the other end of the unidirectional air guide pipe (35) is communicated with a motor casing (12), the upper end of the unidirectional air guide pipe (35) is arranged at the outer side of a separation cylinder, an air inlet through hole (19) used for unidirectional air inlet is arranged at the inner side of the separation cylinder, a pushing mechanism used for intermittently generating a pushing force to the pushing block (26) is arranged on the transmission shaft (37), and the pushing mechanism is higher than the reciprocating piston (34) when the motor casing (34) works.
3. The permanent magnet brushless motor structure based on the water pump according to claim 2, characterized in that the pushing mechanism comprises a transmission column (21) slidably arranged at the lower end of a transmission shaft (37), the lower end of the transmission shaft (37) extends to the inside of a heat dissipation medium box (18), a rotation limiting part for limiting relative rotation of the transmission column (21) and the transmission shaft (37) is arranged between the transmission column (37), an expansion filling cavity (15) is arranged in the transmission shaft (37), expansion filling filler is filled in the expansion filling cavity (15), a piston block (16) is slidably arranged at the lower end of the expansion filling cavity (15), the lower end of the piston block (16) is connected with a transmission push rod (17), the other end of the transmission push rod (17) is fixedly connected with the transmission column (21), a plurality of fourth magnet blocks are distributed outside the upper end of the transmission column (21), a second magnet (25) is embedded on the surface of each pushing block (26), and mutual repulsion between the second magnet (25) and the fourth magnet blocks (38).
4. A water pump based permanent magnet brushless motor structure according to claim 3, characterized in that the outer side of the heat dissipation medium box (18) is distributed with a plurality of heat dissipation fins (32).
5. The permanent magnet brushless motor structure based on the water pump according to claim 3, characterized in that a rotating disc (22) is arranged below the heat dissipation medium box (18), a bearing ring is rotatably arranged on the outer side of the rotating disc (22), the bearing ring is fixedly connected with the heat dissipation medium box (18) through a positioning rod, a plurality of mounting holes are distributed on the rotating disc (22) in an array mode, a fan blade (23) for pushing airflow to flow is arranged at each mounting hole, a transmission ring (28) is arranged in the middle of the upper end of the rotating disc (22), a plurality of third magnet blocks (27) are distributed on the inner side of the transmission ring (28), the lower end of the transmission column (21) penetrates through a through hole of the lower end of the heat dissipation medium box (18), a plurality of first magnets (24) are distributed on the outer side of the lower end of the transmission column (21), and the first magnets (24) and the third magnet blocks (27) are mutually attracted.
6. A permanent magnet brushless motor structure based on a water pump according to claim 3, characterized in that the rotation limiter comprises a limit groove provided on the inner wall of the piston column (20) and a limit protrusion provided on the outer side of the transmission shaft (37).
7. The permanent magnet brushless motor structure based on the water pump according to claim 5, wherein a heat exchange ring box (33) with a ring structure is arranged on the outer side of the heat dissipation medium box (18), one side of the heat exchange ring box (33) is communicated with the water inlet position of the water pump shell (11) through a guide water inlet pipe (36), and a water discharge circulating pipe communicated with the water discharge position of the water pump shell (11) is arranged on the other side of the heat exchange ring box (33).
8. The permanent magnet brushless motor structure based on the water pump according to claim 7, characterized in that an atomization piece used for spraying water mist is arranged between the rotating disc (22) and the heat dissipation medium box (18), the atomization piece comprises a spray ring (41) connected with a positioning rod, a plurality of atomization spray heads (42) used for spraying are arranged on the inner side of the spray ring (41), a water inlet end of the spray ring (41) is communicated with the heat exchange ring box (33) through a water supply pipe, a valve body (40) is arranged on the water supply pipe, a shutoff valve plate (47) is arranged in the valve body (40), a valve cavity (46) used for cutting off sealing is slidably arranged in the shutoff valve plate (47), the lower end of the valve cavity (46) is connected with a stressed plate (45) through a sliding rod, the stressed plate (45) is connected with the valve body (40) through a second spring (43), a side lever is arranged on the outer side of the rotating disc (22), and a pressing wheel (44) used for generating thrust to the lower side of the stressed plate (45) is arranged at the end of the side lever.
9. A method of dissipating heat from a water pump-based permanent magnet brushless motor structure of claim 8, comprising the steps of:
step one: when the heat dissipation strip group can meet the motor requirement, the rest heat dissipation structures do not work;
step two: when the heat radiation bar group cannot meet the heat radiation requirement, the temperature of the expansion filler is increased, the piston block (16) is pushed to move downwards, the piston block (16) pushes the transmission column (21) to move downwards through the transmission push rod (17), so that the fourth magnet block (38) corresponds to the second magnet (25), when the fourth magnet block (38) rotates to the position of the second magnet (25), the second magnet (25) is subjected to extrusion force under the action of magnetic force, the second magnet (25) drives the reciprocating piston block (34) to move, so that power is provided for ventilation, under the action of the reciprocating piston block (34), gas in the heat radiation medium box (18) enters a gap between the stator (14) and the rotor along the air inlet through hole (19), then is discharged to the outer side of the isolation cylinder along the first through hole (13), finally returns to the circulating air duct (35) to the circulating air sleeve (31), and then enters the heat radiation medium box (18) through the one-way air exhaust pipe (30), so that air flow can circulate between the motor shell (12) and the heat radiation medium box (18) and the rotor, and the heat radiation medium can be circulated;
step three: when the expansion filler in the expansion filling cavity (15) continuously expands, the first magnet (24) extends into the transmission ring (28), and the first magnet (24) and the third magnet block (27) interact to form a rotation moment, so that the rotating disc (22) is driven to rotate, the fan blades (23) are enabled to rotate rapidly, air is accelerated to blow to the heat dissipation medium box (18), and heat loss of the heat dissipation medium box (18) is accelerated.
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| CN202310140364.9A CN116404810B (en) | 2023-02-20 | 2023-02-20 | Permanent magnet brushless motor structure and method based on water pump |
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Effective date of registration: 20231122 Address after: Floor 6, Longhua Science Park, 8105, Longhua District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN HIGHSPEED MOTOR Co.,Ltd. Address before: 529700 1st floor, block B, No.10, area 1, Sanlian Industrial Zone, Gulao Town, Heshan City, Jiangmen City, Guangdong Province Applicant before: HESHAN MINQIANG HARDWARE ELECTROMECHANICAL CO.,LTD. |
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