CN117439336A - Capacitive low-noise motor and chef machine - Google Patents
Capacitive low-noise motor and chef machine Download PDFInfo
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- CN117439336A CN117439336A CN202311753716.4A CN202311753716A CN117439336A CN 117439336 A CN117439336 A CN 117439336A CN 202311753716 A CN202311753716 A CN 202311753716A CN 117439336 A CN117439336 A CN 117439336A
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 41
- 230000008859 change Effects 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000000670 limiting effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000002441 reversible effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 10
- 239000000428 dust Substances 0.000 description 8
- 230000002829 reductive effect Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 241000883990 Flabellum Species 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
-
- 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
- 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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention relates to the technical field of driving motors and discloses a capacitive low-noise motor and a chef machine, wherein the capacitive low-noise motor comprises a motor shell, a stator arranged in the motor shell, a rotor arranged in the stator, a heat radiation unit and a touch control unit; the heat dissipation unit is arranged on the motor shell and used for cooling the motor; the touch control unit is arranged in the motor shell and the heat dissipation unit and is used for performing touch control on the heat dissipation unit; the heat dissipation unit includes: the motor cover comprises cover bodies arranged at two ends of the motor casing, air guide openings which are annularly distributed on the cover bodies, air driving components arranged in the cover bodies, and air direction adjusting components arranged on the air driving components, wherein the air guide openings are fan-shaped. According to the capacitive low-noise motor, the rotation direction of the fan blades is controlled through the temperature change ratio of one side of the rotor in the motor shell, so that air does not flow in the motor shell in a directional manner, and heat dissipation in the motor can be achieved fully.
Description
Technical Field
The invention relates to the technical field of driving motors, in particular to a capacitive low-noise motor and a chef machine.
Background
The capacitive motor mainly comprises a stator and a rotor, the direction of forced movement of an electrified wire in a magnetic field is related to the current direction and the magnetic induction line direction, and in order to reduce noise generated by the operation of the capacitive motor, sound insulation materials are added into a shell of the capacitive motor, so that the noise reduction operation is realized. At present, the motor can generate heat when working, the heat gathers in the motor and can reduce the service life of the motor, therefore, fan blades can be additionally arranged on some motors, external air is pushed into the motor through the fan blades, the air flows in the motor to take away the heat between the stator and the rotor, but because the air moves towards one direction, the motor close to one side of the fan contacts with air with lower temperature, the cooling effect is obvious, the motor far away from one side of the fan contacts with air after absorbing heat, the cooling effect is general, obvious temperature difference can occur at two sides of the same equipment in the motor, potential safety hazards are caused, and the service life of the capacitive low-noise motor is influenced.
Disclosure of Invention
In view of the problems that in the prior art, obvious temperature difference can occur at two sides of the same equipment in the motor, potential safety hazard is caused, and the service life of the capacitive low-noise motor is influenced, the capacitive low-noise motor and a chef machine are provided.
In one aspect of the present application, a capacitive low noise motor is provided, and the purpose of the capacitive low noise motor is: when the motor outputs continuously for a long time, the heat radiation wind direction is adjusted according to the temperature difference inside the motor.
The technical scheme of the invention is as follows: a capacitance type low noise motor comprises a motor shell, a stator arranged in the motor shell, a rotor arranged in the stator, a heat radiation unit and a touch control unit;
the heat dissipation unit is arranged on the motor shell and used for cooling the motor;
the touch control unit is arranged in the motor shell and the heat dissipation unit and is used for performing touch control on the heat dissipation unit;
the heat dissipation unit includes: the touch control unit comprises a controller arranged on the inner wall of the cover body, a cover body arranged at two ends of the motor shell, air guide holes which are annularly distributed on the cover body, an air driving component arranged in the cover body, and an air direction regulating component arranged on the air driving component, wherein the air guide holes are fan-shaped, and the caliber of the air guide holes is synchronously increased along with the increase of the distance between the air guide holes and the axis of the cover body;
the wind-driving component guides external air into the motor shell and discharges the external air;
the wind-driving component comprises a first conical driving wheel arranged on the rotor shaft lever, a driving shaft rotationally arranged at the top of the cover body, fan blades arranged on the driving shaft, a second conical driving wheel arranged on the driving shaft, and a third conical driving wheel arranged between the first conical driving wheel and the second conical driving wheel and used for reverse transmission;
the wind direction adjusting component is used for adjusting the direction of air entering the motor shell, and is arranged on the touch control unit.
The capacitive low-noise motor provided by the embodiment of the application drives the conical driving wheel to synchronously rotate when the rotor shaft lever rotates, and drives the conical driving wheel II through the conical driving wheel III, so that the fan blades on the driving shaft belt rotate, the rotating direction of the fan blades is opposite to the rotating direction of the rotor, the air of the top cover body enters the motor shell from the air guide opening, and after the stator and the rotor in the motor shell are cooled, the hot air is discharged from the air guide opening of the bottom cover body.
Further, the wind direction adjusting component comprises a direction adjusting column which is rotatably arranged on the conical driving wheel III, a driving groove which is arranged at the top of the rotor shaft lever, a driving pin with one end inserted into the driving groove, a positioning groove which is arranged at the bottom of the driving shaft, a bearing seat which is arranged on the driving pin, and a direction adjusting rod which is arranged between the direction adjusting column and the bearing seat;
the cross sections of the transmission groove, the transmission pin and the positioning groove are rectangular.
By adopting the technical scheme, when the air heat dissipation direction in the motor shell needs to be adjusted, the touch control unit controls the steering column to retreat, and drives the conical driving wheel III to retreat synchronously when the steering column retreats, so that the conical driving wheel III is separated from the conical driving wheel I and the conical driving wheel II, when the steering column retreats, the steering rod pulls the bearing seat to move upwards, so that the driving pin in the driving groove is lifted upwards to be inserted into the positioning groove, and at the moment, the driving shaft drives the fan blade and the rotor to rotate in the same speed and in the same direction, so that air of the bottom cover body enters the motor shell from the air guide opening, and after cooling the stator and the rotor in the motor shell, hot air is discharged from the air guide opening of the top cover body.
Further, the touch control unit comprises a temperature sensor arranged on the inner wall of the motor shell and a magnetic component arranged on the cover body and the steering column, wherein the magnetic component is used for controlling the steering column to transversely move;
the temperature sensor is connected with the controller through a wire signal, and the controller is connected with the magnetic component through a wire;
the mounting position of the temperature sensor is close to one side of the rotor and is used for detecting the peripheral working temperature of the rotor;
the temperature sensor comprises temperature detection and temperature processing, wherein the temperature detection detects the internal temperature of the motor when the motor works, the working temperature of the rotor is detected and temperature information is formed, the temperature processing receives the temperature information and then carries out calculation processing to obtain the temperature change ratio TAb,
the calculation formula of the temperature change ratio TAb is:，
wherein: TA (n-) is the primary detection temperature value, and TAn is the n detection temperature values with the same time interval;
after the temperature change ratio TAb is obtained, comparing the temperature change ratio TAb with a V value, wherein V is a threshold value, the threshold value accords with the optimal working temperature of the motor, the working life of the motor is effectively prolonged, and comparison data are transmitted to a controller;
the controller receives the comparison data, when the TAb is more than or equal to V, the controller controls the magnetic component to be electrified, so that the magnetic component generates magnetic attraction, and when the TAb is less than V, the controller controls the magnetic component to be powered off.
By adopting the technical scheme, when the temperature sensor transmits the detected temperature change ratio TAb to the controller in real time, the controller compares the temperature change ratio TAb with the V value, and the magnetic component is controlled to be electrified and powered off according to the result obtained by comparison.
Further, the magnetic component comprises an iron block arranged at the end part of the steering column, an electromagnet arranged on the inner wall of the cover body and corresponding to the iron block, a transmission block arranged on the wall of the steering column, and an pushing piece symmetrically arranged on the transmission block and the inner wall of the cover body relative to the electromagnet, wherein the pushing piece can be a folded metal spring piece, and the controller is connected with the electromagnet through a wire in a control manner.
By adopting the technical scheme, when the electromagnet is powered off, the conical driving wheel III drives the conical driving wheel I and the conical driving wheel II, after the electromagnet is electrified, the electromagnet generates magnetism to magnetically attract the iron block, the iron block pulls the conical driving wheel III to retreat through the steering column, so that the conical driving wheel III is separated from the conical driving wheel I and the conical driving wheel II, and when the steering column moves, the driving block compresses the pushing member until the electromagnet is powered off, and the compressed pushing member pushes the driving block, the steering column and the conical driving wheel III to reset, so that the conical driving wheel III is in transmission with the conical driving wheel I and the conical driving wheel II again.
Further, the magnetic component further comprises limiting rods symmetrically arranged on the inner cover wall of the cover body with respect to the electromagnet, and the limiting rods movably penetrate through the pushing piece and the transmission block.
By adopting the technical scheme, the motion directions of the pushing member and the transmission block are limited through the limiting rod, and meanwhile, the transmission block is supported.
Further, the heat dissipation unit is also provided with an air port adjusting unit, and the air port adjusting unit is arranged on the heat dissipation unit and synchronously adjusts the size of the air guide port according to the output frequency of the motor;
the tuyere adjusting unit includes: the centrifugal pushing component is arranged on the wind-driving component, and the sealing component is arranged on the wind-driving component and the centrifugal pushing component;
the centrifugal pushing component comprises a centrifugal throwing strip arranged on the shaft wall of the driving shaft, a balancing weight arranged at the end part of the centrifugal throwing strip, a push ring movably sleeved on the driving shaft, and a pushing piece arranged between the cover body and the push ring, wherein the pushing piece can be a spring, and the centrifugal throwing strip is positioned in the push ring.
By adopting the technical scheme, when the driving shaft rotates, centrifugal force is applied to the balancing weight, the balancing weight is thrown up through the centrifugal throwing bar, the wall of the rod is contacted with the push ring when the centrifugal throwing bar is thrown up, the push ring is pushed to compress the pushing piece and ascend, the rotating speed of the driving shaft is in direct proportion to the rotating speed of the rotor, the output frequency of the motor is higher, the rotating speed of the driving shaft is higher, the throwing amplitude of the centrifugal throwing bar is higher, the upward pushing distance of the push ring is higher, and the compression amount of the pushing piece is also higher.
Further, the sealing part comprises a sealing plate arranged at the top of the cover body corresponding to the air guide opening, a supporting notch arranged on the sealing plate, a supporting pin shaft with one end arranged in the supporting notch, and a pushing strip arranged between the sealing plate and the pushing ring, wherein the other end of the supporting pin shaft is arranged on the inner cover wall of the cover body.
By adopting the technical scheme, when the motor does not work, the sealing plate blocks the air guide opening to prevent dust from entering the motor, when the motor works, the driving shaft rotates to push the push ring to move upwards, when the push ring moves upwards, the push ring applies a horizontal pushing force to the sealing plate through the push bar, the sealing plate exposes the air guide opening while moving on the supporting pin shaft, the higher the frequency of the output end of the motor is, the higher the opening degree of the air guide opening is, the higher the air inlet in the motor is, and otherwise, the lower the frequency of the output end of the motor is, the smaller the opening degree of the air guide opening is, and the lower the air inlet in the motor is;
when the wind speed is low, the following disadvantages are caused if the air inlet is oversized:
reducing wind pressure: when the wind speed is low, if the air inlet is too large, the wind pressure generated by the fan cannot overcome the resistance in the system, so that the air flow is blocked, and the heat dissipation effect is affected;
adverse air distribution: the air inlet is too large, so that air cannot be uniformly distributed before entering the fan system, and the heat dissipation surface of part of fans cannot be sufficiently cooled, so that the overall heat dissipation effect is affected;
noise increases: the oversized air inlet can cause turbulence to be formed in the fan system, so that the noise generation performance is increased, and the use environment is influenced;
while at higher wind speeds, too small an inlet would result in some of the following disadvantages:
high wind resistance: when the wind speed is high, wind resistance is increased due to the fact that the air inlet is too small, air fluid is limited to flow into the fan system stably, the wind resistance is increased, and therefore the efficiency of the whole fan system is reduced;
noise increases: too small an air intake can cause turbulence or swirling of the air fluid as it enters the fan system, which can increase noise generation, resulting in an increase in noise level of the overall system;
the heat dissipation effect is reduced: when the wind speed is higher, if the air inlet is too small, wind resistance is increased, air flows in smoothly, the heat dissipation effect of the fan system is affected, and the heat dissipation is uneven and even overheated.
Further, the bottom of the inner annular wall of the push ring is provided with an arc-shaped inclined plane, balls are uniformly and equidistantly arranged on the arc-shaped inclined plane, and an arc-shaped throwing block is arranged on the rod wall of the centrifugal throwing strip.
By adopting the technical scheme, the centrifugal throwing strip drives the throwing block to synchronously move during movement, and the throwing block pushes against the balls on the arc inclined surface of the push ring to roll when rotating, so that the friction resistance between the throwing block and the push ring is reduced.
Further, this application still provides a chef machine, including capacitanc low noise motor, still includes the chef machine body, this internal drive chamber that is provided with of chef machine, capacitanc low noise motor installs at the drive intracavity, the gas port has all been seted up at the chamber top and the chamber bottom in drive chamber.
By adopting the technical scheme, the air ports at the top and the bottom of the driving cavity are used for leading the air inside and outside the motor to flow through.
Further, the air port is provided with a filter screen.
By adopting the technical scheme, the air entering the motor is filtered through the filter screen, dust is blocked at the outer side of the filter screen, and after the rotation direction of the fan blades in the motor is adjusted, the dust at the outer side of the filter screen is blown away.
The invention has the beneficial effects that:
1. through the rotation direction of the nondirectional adjustment flabellum for be used for radiating air in the motor shell and be nondirectional motion, make stator and rotor different from the flabellum position can all carry out abundant heat dissipation, avoid appearing long-time difference in temperature environment in the motor, improved the life of motor.
2. The temperature sensor is used for detecting the temperature in the motor shell to obtain the temperature change ratio of one side of the rotor in the motor shell, and the heat dissipation unit is controlled to adjust the direction of rotation of the fan blades according to the temperature change ratio, so that air does not flow in the motor shell in a directional manner, and the motor can dissipate heat fully.
3. The larger the output frequency of the motor is, the more air is required for heat dissipation, the larger the opening degree of the air guide opening is, otherwise, the smaller the output frequency of the motor is, the less air is required for heat dissipation, the smaller the opening degree of the air guide opening is, the normal heat dissipation of the motor is ensured, and meanwhile, the noise is reduced; and when the motor does not work, the sealing plate seals the air guide port, and even if the motor is not used and is stored independently, dust does not need to enter the motor, and the motor is not damaged.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention;
fig. 2 is a plan view of the present embodiment 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of a wind-driving component according to embodiment 1 of the present invention;
FIG. 5 is a schematic diagram of a rotor according to embodiment 1 of the present invention;
FIG. 6 is a schematic view of the positional relationship between a drive shaft and a drive pin in an embodiment of the present invention;
FIG. 7 is a schematic diagram showing the positional relationship between the temperature sensor and the rotor in embodiment 2 of the present invention;
FIG. 8 is a schematic diagram showing the positional relationship between a wind direction adjusting member and a magnetic attraction member in embodiment 2 of the present invention;
FIG. 9 is a schematic flow chart of embodiment 2 of the present invention;
fig. 10 is a schematic perspective view of embodiment 3 of the present invention;
FIG. 11 is a schematic perspective view of a damper adjusting unit in embodiment 3 of the present invention;
fig. 12 is a schematic perspective view of a centrifugal pushing member in embodiment 3 of the present invention;
fig. 13 is a schematic structural view of the opening closure member in embodiment 3 of the present invention;
fig. 14 is a schematic perspective view of embodiment 4 of the present invention;
fig. 15 is a schematic perspective view of a second embodiment 4;
fig. 16 is a partial cross-sectional view of embodiment 4 of the present invention.
In the figure:
1. a motor housing; 2. a stator; 3. a rotor; 4. a heat radiation unit; 41. a cover body; 42. an air guide port; 43. a wind-driving component; 431. a conical driving wheel I; 432. a drive shaft; 433. a fan blade; 434. a conical driving wheel II; 435. a conical driving wheel III; 44. a wind direction adjusting member; 441. a steering column; 442. a transmission groove; 443. a drive pin; 444. a positioning groove; 445. a bearing seat; 446. a steering rod; 5. a touch control unit; 51. a temperature sensor; 52. a controller; 53. a magnetic attraction member; 531. iron blocks; 532. an electromagnet; 533. a transmission block; 534. an outer pushing member; 535. a limit rod; 6. an air port adjusting unit; 61. a centrifugal pushing member; 611. centrifuging and throwing the strips; 612. balancing weight; 613. a push ring; 614. a pushing-down member; 615. a ball; 616. a throwing block; 62. a sealing member; 621. a sealing plate; 622. a support notch; 623. a support pin; 624. pushing the strip; 7. a chef machine body; 8. a drive chamber; 9. and (5) a filter screen.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Embodiment 1, referring to fig. 1 to 6, a capacitive low noise motor is provided for a first embodiment of the present invention, and includes a motor housing 1, a stator 2 installed in the motor housing 1, a rotor 3 installed in the stator 2, a heat dissipation unit 4 and a touch unit 5; the heat radiating unit 4 is arranged on the motor shell 1 and is used for cooling the motor; the touch unit 5 is installed in the motor housing 1 and the heat dissipation unit 4, and is used for performing touch control on the heat dissipation unit 4.
Referring to fig. 1 to 6, the heat dissipation unit 4 includes: the touch control unit 5 comprises a controller 52 arranged on the inner wall of the cover 41, a plurality of air guide ports 42 which are symmetrically connected to the two ends of the motor shell 1, a plurality of air guide members 42 which are annularly distributed and arranged on the cover 41, an air driving member 43 arranged in the cover 41, and an air direction adjusting member 44 arranged on the air driving member 43, wherein the air guide ports 42 are fan-shaped, and the caliber is synchronously increased along with the increase of the axial distance between the air guide ports and the cover 41; the air-driving part 43 guides and discharges outside air into the motor housing 1, the air-direction adjusting part 44 adjusts the direction in which the air enters the motor housing 1, and the air-direction adjusting part 44 is provided on the touch unit 5.
Referring to fig. 3 to 4, the wind-driving part 43 includes a first conical driving wheel 431 sleeved on the shaft of the rotor 3, a driving shaft 432 rotatably connected to the inner top of the cover 41, a fan blade 433 sleeved on the driving shaft 432, a second conical driving wheel 434 sleeved on the driving shaft 432, and a third conical driving wheel 435 disposed between the first conical driving wheel 431 and the second conical driving wheel 434 for reverse driving, wherein the third conical driving wheel may be a bevel gear.
Specifically, when the shaft lever of the rotor 3 rotates, the first conical driving wheel 431 is driven to synchronously rotate, the second conical driving wheel 434 is driven by the third conical driving wheel 435, so that the fan blades 433 on the driving shaft 432 rotate, the rotating directions of the fan blades 433 are opposite to the rotating directions of the rotor 3, air of the top cover 41 enters the motor shell 1 from the air guide opening 42, and after the stator 2 and the rotor 3 in the motor shell 1 are cooled, hot air is discharged from the air guide opening 42 of the bottom cover 41.
Referring to fig. 3 and 5 to 6, the wind direction steering part 44 includes a steering column 441 penetrating through and rotatably connected to the third conical driving wheel 435, a driving slot 442 provided at the top of the shaft lever of the rotor 3, a driving pin 443 having one end inserted into the driving slot 442, a positioning slot 444 provided at the bottom of the driving shaft 432, a bearing seat 445 sleeved on the driving pin 443, and a steering rod 446 hinged between the steering column 441 and the bearing seat 445; the cross sections of the transmission groove 442, the transmission pin 443 and the positioning groove 444 are all rectangular, the touch control unit 5 can be an electric push rod installed on the inner wall of the cover 41, the output end of the electric push rod is connected with the end part of the steering column 441, and the output end of the electric push rod stretches and contracts to drive the steering column 441 to advance and retract.
Specifically, when the heat dissipation direction of the air in the motor housing 1 needs to be adjusted, the touch control unit 5 controls the steering column 441 to retreat, and drives the conical driving wheel three 435 to retreat synchronously when the steering column 441 retreats, so that the conical driving wheel three 435, the conical driving wheel one 431 and the conical driving wheel two 434 are separated from each other, and when the steering column 441 retreats, the steering rod 446 pulls the bearing seat 445 to move upwards, so that the driving pin 443 in the driving slot 442 is lifted and inserted into the positioning slot 444, and at the moment, the driving shaft 432 drives the fan blades 433 and the rotor 3 to rotate at the same speed and in the same direction, so that the air of the bottom cover 41 enters the motor housing 1 from the air guide 42, and after the stator 2 and the rotor 3 in the motor housing 1 are cooled, the hot air is discharged from the air guide 42 of the top cover 41.
In the use process, when the motor is electrified, the rotor 3 rotates clockwise in the stator 2, the temperature in the motor starts to rise, the first conical driving wheel 431 is driven to rotate clockwise synchronously when the rotor 3 rotates, the second conical driving wheel 434, the driving shaft 432 and the fan blades 433 are driven to rotate anticlockwise synchronously through the third conical driving wheel 435, external air is conveyed into the motor shell 1 through the air guide opening 42 on the top cover 41, when the air passes through the rotor 3 and the stator 2, the rotor 3 and the stator 2 are subjected to heat exchange and temperature reduction, and the air absorbing heat is discharged through the air guide opening 42 on the bottom cover 41; when air in the motor shell 1 continuously flows in one direction for a certain time, the touch control unit 5 pulls the steering column 441 to retreat, the steering column 441 drives the conical driving wheel III 435 to be separated from the conical driving wheel I431 and the conical driving wheel II 434, upward pulling force is applied to the bearing seat 445 through the hinged steering rod 446, the top of the driving pin 443 is driven to be inserted into the positioning groove 444, at the moment, when the rotor 3 rotates, the driving shaft 432 is rotated through the driving pin 443 in the bearing seat 445, the fan blades 433 are driven to synchronously rotate clockwise, at the moment, external cold air is conveyed into the motor shell 1 through the air guide holes 42 on the bottom cover body 41, when the air passes through the rotor 3 and the stator 2, the heat exchange and the temperature reduction are carried out on the rotor 3 and the stator 2, and the air absorbing the heat is discharged through the air guide holes 42 on the top cover body 41, so that the air used for heat dissipation in the motor shell 1 does not move in a directional mode, the stator 2 and the rotor 3 with different positions away from the fan blades can be fully cooled, long-time temperature difference environments in the motor can be avoided, and the service life of the motor is prolonged.
Embodiment 2, referring to fig. 1-9, is a second embodiment of the present invention, which differs from the first embodiment in that: the touch unit 5 includes a temperature sensor 51 mounted on the inner wall of the motor housing 1, a controller 52 mounted on the inner wall of the cover 41, and a magnetic attraction member 53 mounted on the cover 41 and the steering column 441, the magnetic attraction member 53 being for controlling the steering column 441 to move laterally;
the temperature sensor 51 is connected with the controller 52 through a wire signal, and the controller 52 is connected with the magnetic attraction component 53 through a wire control;
the temperature sensor 51 is installed at a position close to one side of the rotor 3 for detecting an operating temperature around the rotor 3;
the temperature sensor 51 includes temperature detection and temperature processing, the temperature detection detects the internal temperature when the motor is in operation, detects the operating temperature at the rotor 3 and forms temperature information, the temperature processing receives the temperature information and performs calculation processing to obtain a temperature change ratio TAb,
the calculation formula of the temperature change ratio TAb is:，
wherein: TA (n-1) is a primary detection temperature value, and TAn is n detection temperature values at equal intervals;
after the temperature change ratio TAb is obtained, comparing the temperature change ratio TAb with a V value, wherein V is a threshold value, the threshold value accords with the optimal working temperature of the motor, the working life of the motor is effectively prolonged, and the comparison data are transmitted to the controller 52;
the controller 52 receives the comparison data, when the TAb is more than or equal to V, the controller 52 controls the magnetic attraction component 53 to be electrified, so that the magnetic attraction component 53 generates magnetic attraction, and when the TAb is less than V, the controller 52 controls the magnetic attraction component 53 to be powered off.
Specifically, when the temperature sensor 51 transmits the detected temperature change ratio TAb to the controller 52 in real time, the controller 52 compares the temperature change ratio TAb with the V value, and controls the magnetic attraction part 53 to be energized and de-energized according to the result obtained by the comparison.
Referring to fig. 4 and 8-9, the magnetic part 53 includes an iron block 531 connected to an end of the steering column 441, an electromagnet 532 mounted on an inner wall of the housing 41 corresponding to the position of the iron block 531, a transmission block 533 sleeved on the column wall of the steering column 441, and an pushing member 534 symmetrically connected to the transmission block 533 and the inner wall of the housing 41 with respect to the electromagnet 532, the pushing member 534 may be a folded metal spring, and the controller 52 is controllably connected to the electromagnet 532 through a wire, the magnetic part 53 further includes a limit lever 535 symmetrically connected to the inner wall of the housing 41 with respect to the electromagnet 532, and the limit lever 535 is movably disposed through the pushing member 534 and the transmission block 533.
Specifically, the push member 534 and the motion direction of the transmission block 533 are limited by the limiting rod 535, the transmission block 533 is supported at the same time, when the electromagnet 532 is powered off, the conical transmission wheel III 435 transmits the conical transmission wheel I431 and the conical transmission wheel II 434, when the electromagnet 532 is powered on, the electromagnet 532 generates magnetism to magnetically attract the iron block 531, the iron block 531 pulls the conical transmission wheel III 435 to retreat through the steering column 441, so that the conical transmission wheel III 435 is separated from the conical transmission wheel I431 and the conical transmission wheel II 434, the push member 534 is compressed by the transmission block 533 when the steering column 441 moves until the electromagnet 532 is powered off, and the compressed push member 534 pushes the transmission block 533, the steering column 441 and the conical transmission wheel III 435 to reset, so that the conical transmission wheel III is in transmission with the conical transmission wheel I431 and the conical transmission wheel II 434 again.
During use, when the motor just works, the fan blades 433 rotate anticlockwise, air in the motor shell 1 moves downwards from top to bottom, the temperature sensor 51 monitors the temperature of one side of the rotor 3 at the position at intervals in real time, the temperature change ratio TAb is calculated according to two adjacent groups of monitored temperature values, calculated data are transmitted to the controller 52, and the controller 52 compares the TAb with the V value;
when TAb is more than or equal to V, the controller 52 controls the electromagnet 532 to generate magnetism, the electromagnet 532 carries out magnetic attraction on the iron block 531, so that the electromagnet 532 pulls the steering column 441 and the transmission block 533 to move, the transmission block 533 compresses the pushing piece 534, the conical transmission wheel III 435 is separated from the conical transmission wheel I431 and the conical transmission wheel II 434, and the top of the transmission pin 443 is inserted into the positioning groove 444, so that the fan blade 433 rotates clockwise, and air in the motor shell 1 moves from bottom to top;
when TAb < V, the controller 52 controls the electromagnet 532 to be powered off and lose magnetism, the compressed pushing piece 534 pushes the transmission block 533 to reset, so that the conical transmission wheel III 435 is in contact transmission with the conical transmission wheel I431 and the conical transmission wheel II 434 again, and the fan blades 433 rotate anticlockwise;
according to the temperature change ratio of one side of the rotor 3 in the motor shell 1, the heat radiation unit 4 is controlled to adjust the rotation direction of the fan blades 433, so that air does not flow in the motor shell 1 in a directional manner, heat radiation can be fully performed in the motor, and the service life of the motor is prolonged.
The rest of the structure is the same as that of embodiment 1.
Embodiment 3, referring to fig. 1-12, is a third embodiment of the present invention, which differs from the second embodiment in that: the air port adjusting unit 6 is also arranged on the heat radiating unit 4, the air port adjusting unit 6 is arranged on the heat radiating unit 4, and the size of the air guide port 42 is synchronously adjusted according to the output frequency of the motor; the tuyere adjusting unit 6 includes: a centrifugal pushing member 61 mounted on the wind-driving member 43, and a sealing member 62 mounted on the wind-driving member 43 and the centrifugal pushing member 61.
The centrifugal pushing component 61 comprises a centrifugal throwing strip 611 hinged on the shaft wall of the driving shaft 432, a balancing weight 612 connected at the end part of the centrifugal throwing strip 611, a pushing ring 613 movably sleeved on the driving shaft 432, and a pushing piece 614 connected between the cover 41 and the pushing ring 613, wherein the pushing piece 614 can be a spring, the centrifugal throwing strip 611 is positioned in the pushing ring 613, the bottom of the inner annular wall of the pushing ring 613 is provided with an arc inclined surface, a plurality of balls 615 are uniformly and equidistantly embedded on the arc inclined surface, and an arc throwing block 616 is connected on the rod wall of the centrifugal throwing strip 611.
Specifically, when the driving shaft 432 rotates, centrifugal force is applied to the balancing weight 612, the balancing weight 612 is thrown up through the centrifugal throwing bar 611, the outer side of the throwing block 616 is driven to push against the ball 615 of the push ring 613 to rotate when the centrifugal throwing bar 611 is thrown up, friction resistance between the throwing block 616 and the push ring 613 is reduced, the push ring 613 is compressed by the upper thrust to compress the push down piece 614 and rises, the rotating speed of the driving shaft 432 is in direct proportion to the rotating speed of the rotor 3, the larger the output frequency of the motor is, the faster the rotating speed of the driving shaft 432 is, the larger the throwing amplitude of the centrifugal throwing bar 611 is, the higher the upward pushing distance of the push ring 613 is, and the compression amount of the push down piece 614 is also larger.
Referring to fig. 11 and 13, the opening closure member 62 includes a closing plate 621 slidably disposed at the inner top of the housing 41 corresponding to the position of the air guide opening 42, a support slot 622 formed at the closing plate 621, a support pin 623 having one end inserted into the support slot 622, the other end of the support pin 623 being connected to the inner housing wall of the housing 41, and a push bar 624 hinged between the closing plate 621 and the push ring 613.
Specifically, when the motor does not work, the sealing plate 621 blocks the air guide opening 42 to prevent dust from entering the motor, when the motor works, the driving shaft 432 rotates to push the push ring 613 to move upwards, when the push ring 613 moves upwards, the push bar 624 applies a horizontal pushing force to the sealing plate 621, the sealing plate 621 exposes the air guide opening 42 while moving on the supporting pin 623, the higher the output end frequency of the motor is, the greater the opening degree of the air guide opening 42 is, the higher the air inlet in the motor is, and otherwise, the lower the output end frequency of the motor is, the smaller the opening degree of the air guide opening 42 is, and the lower the air inlet in the motor is;
when the wind speed is low, the following disadvantages are caused if the air inlet is oversized:
reducing wind pressure: when the wind speed is low, if the air inlet is too large, the wind pressure generated by the fan cannot overcome the resistance in the system, so that the air flow is blocked, and the heat dissipation effect is affected;
adverse air distribution: the air inlet is too large, so that air cannot be uniformly distributed before entering the fan system, and the heat dissipation surface of part of fans cannot be sufficiently cooled, so that the overall heat dissipation effect is affected;
noise increases: the oversized air inlet can cause turbulence to be formed in the fan system, so that the noise generation performance is increased, and the use environment is influenced;
while at higher wind speeds, too small an inlet would result in some of the following disadvantages:
high wind resistance: when the wind speed is high, wind resistance is increased due to the fact that the air inlet is too small, air fluid is limited to flow into the fan system stably, the wind resistance is increased, and therefore the efficiency of the whole fan system is reduced;
noise increases: too small an air intake can cause turbulence or swirling of the air fluid as it enters the fan system, which can increase noise generation, resulting in an increase in noise level of the overall system;
the heat dissipation effect is reduced: when the wind speed is higher, if the air inlet is too small, wind resistance is increased, air flows in smoothly, the heat dissipation effect of the fan system is affected, and the heat dissipation is uneven and even overheated.
During use, when the driving shaft 432 rotates, the balancing weight 612 is driven to synchronously rotate through the hinged centrifugal throwing strip 611, the centrifugal throwing strip 611 swings upwards under the action of centrifugal force, the rotation speed of the driving shaft 432 is synchronously increased along with the increase of the output power of the motor, the centrifugal force applied to the centrifugal throwing strip 611 is also increased, the swing amplitude of the centrifugal throwing strip 611 after overcoming the gravity of the balancing weight 612 is in direct proportion to the output power of the motor until the centrifugal throwing strip 611 is mutually perpendicular to the driving shaft 432, the pushing ring 613 can apply an upward thrust when the centrifugal throwing strip 611 swings upwards, the pushing ring 613 compresses the pushing piece 614 and moves upwards, the sealing plate 621 is pushed to move on the supporting pin 623 through the hinged pushing strip 624, the air guide 42 on the cover body 41 is exposed, so that the air outside the motor can normally enter and exit, the motor output frequency is increased, the air required for heat dissipation is increased, the opening degree of the air guide 42 is increased, and conversely the motor output frequency is decreased, the air required for heat dissipation is decreased, and the opening degree of the air guide 42 is decreased, and the noise is reduced while the motor is ensured to be normal; and when the motor is not in operation, the sealing plate 621 seals the air guide opening 42, so that even if the motor is not in use and is stored independently, dust does not enter the motor and damage the motor.
The rest of the structure is the same as that of embodiment 2.
Embodiment 4, referring to fig. 14-16, for a fourth embodiment of the present invention, there is provided: the utility model provides a chef machine, includes capacitanc low noise motor, still includes chef machine body 7, is provided with driving chamber 8 in the chef machine body 7, and capacitanc low noise motor installs in driving chamber 8, and air ports have all been seted up at driving chamber 8's chamber top and chamber bottom, and filter screen 9 is installed to the air port.
Specifically, through the gas ports at the top and the bottom of the driving cavity 8, the air inside and outside the motor is led through, the air entering the motor is filtered through the filter screen 9, dust is blocked at the outer side of the filter screen 9, and when the rotating direction of the fan blades 433 in the motor is adjusted, the dust at the outer side of the filter screen 9 is blown away.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (10)
1. A capacitive low noise motor, includes motor housing (1), stator (2) that sets up in motor housing (1), and rotor (3) that sets up in stator (2), its characterized in that: the device also comprises a heat dissipation unit (4) and a touch control unit (5);
the heat radiating unit (4) is arranged on the motor shell (1) and is used for cooling the motor internally;
the touch control unit (5) is arranged in the motor shell (1) and the heat dissipation unit (4) and is used for performing touch control on the heat dissipation unit (4);
the heat dissipation unit (4) includes: the touch control unit (5) comprises a controller (52) arranged on the inner wall of the cover body (41), wherein the air guide opening (42) is annularly distributed on the cover body (41), an air driving component (43) arranged in the cover body (41) and an air direction regulating component (44) arranged on the air driving component (43), the air guide opening (42) is in a fan shape, and the caliber synchronously increases along with the increase of the axial distance between the air guide opening and the cover body (41);
the wind-driving component (43) guides external air into the motor shell (1) and discharges the air;
the wind-driving component (43) comprises a first conical driving wheel (431) arranged on a shaft lever of the rotor (3), a driving shaft (432) rotationally arranged at the inner top of the cover body (41), fan blades (433) arranged on the driving shaft (432), a second conical driving wheel (434) arranged on the driving shaft (432), and a third conical driving wheel (435) arranged between the first conical driving wheel (431) and the second conical driving wheel (434) and used for reverse transmission;
the wind direction adjusting component (44) is used for adjusting the direction of air entering the motor shell (1), and the wind direction adjusting component (44) is arranged on the touch control unit (5).
2. The capacitive low noise motor of claim 1, wherein: the wind direction adjusting component (44) comprises a steering column (441) which is rotatably arranged on a conical driving wheel III (435), a driving groove (442) which is arranged at the top of a shaft lever of the rotor (3), a driving pin (443) one end of which is inserted into the driving groove (442), a positioning groove (444) which is arranged at the bottom of the driving shaft (432), a bearing seat (445) which is arranged on the driving pin (443), and a steering rod (446) which is arranged between the steering column (441) and the bearing seat (445);
the cross sections of the transmission groove (442), the transmission pin (443) and the positioning groove (444) are all rectangular.
3. The capacitive low noise motor of claim 2, wherein: the touch control unit (5) comprises a temperature sensor (51) arranged on the inner wall of the motor shell (1) and a magnetic component (53) arranged on the cover body (41) and the steering column (441), wherein the magnetic component (53) is used for controlling the steering column (441) to move transversely;
the temperature sensor (51) is connected with the controller (52) through a wire signal, and the controller (52) is connected with the magnetic component (53) through a wire control;
the mounting position of the temperature sensor (51) is close to one side of the rotor (3) and is used for detecting the peripheral working temperature of the rotor (3);
the temperature sensor (51) comprises temperature detection and temperature processing, wherein the temperature detection detects the internal temperature of the motor when the motor works, the working temperature of the rotor (3) is detected to form temperature information, the temperature processing receives the temperature information and then carries out calculation processing to obtain the temperature change ratio TAb,
the calculation formula of the temperature change ratio TAb is:，
wherein: TA (n-1) is a primary detection temperature value, and TAn is n detection temperature values at equal intervals;
after the temperature change ratio TAb is obtained, comparing the temperature change ratio TAb with a V value, wherein V is a threshold value which is the optimal working temperature of the motor, and transmitting comparison data to a controller (52);
the controller (52) receives the comparison data, when the TAb is more than or equal to V, the controller (52) controls the magnetic attraction component (53) to be electrified, so that the magnetic attraction component (53) generates magnetic attraction, and when the TAb is less than V, the controller (52) controls the magnetic attraction component (53) to be powered off.
4. A capacitive low noise motor according to claim 3, characterized in that: the magnetic component (53) comprises an iron block (531) arranged at the end part of the steering column (441), an electromagnet (532) arranged on the inner wall of the cover body (41) corresponding to the iron block (531), a transmission block (533) arranged on the column wall of the steering column (441), and an pushing member (534) symmetrically arranged on the transmission block (533) and the inner wall of the cover body (41) relative to the electromagnet (532), wherein the controller (52) is in control connection with the electromagnet (532) through a lead.
5. The capacitive low noise motor of claim 4, wherein: the magnetic component (53) further comprises a limiting rod (535) symmetrically arranged on the inner cover wall of the cover body (41) about the electromagnet (532), and the limiting rod (535) movably penetrates through the pushing piece (534) and the transmission block (533).
6. The capacitive low noise motor of claim 5, wherein: an air port adjusting unit (6) is further arranged on the heat radiating unit (4), and the air port adjusting unit (6) is arranged on the heat radiating unit (4) and synchronously adjusts the size of the air guide port (42) according to the output frequency of the motor;
the tuyere adjusting unit (6) includes: a centrifugal pushing member (61) provided on the air-driving member (43), and a sealing member (62) provided on the air-driving member (43) and the centrifugal pushing member (61);
the centrifugal pushing component (61) comprises a centrifugal throwing strip (611) arranged on the shaft wall of the driving shaft (432), a balancing weight (612) arranged at the end part of the centrifugal throwing strip (611), a push ring (613) movably sleeved on the driving shaft (432), and a pushing piece (614) arranged between the cover body (41) and the push ring (613), wherein the centrifugal throwing strip (611) is positioned in the push ring (613).
7. The capacitive low noise motor of claim 6, wherein: the sealing part (62) comprises a sealing plate (621) arranged at the inner top of the cover body (41) at the position corresponding to the air guide opening (42), a support notch (622) arranged on the sealing plate (621), a support pin shaft (623) with one end arranged in the support notch (622), the other end of the support pin shaft (623) arranged on the inner cover wall of the cover body (41), and a pushing strip (624) arranged between the sealing plate (621) and the pushing ring (613).
8. The capacitive low noise motor of claim 6 or 7, wherein: the bottom of the inner annular wall of the push ring (613) is provided with an arc-shaped inclined plane, balls (615) are uniformly and equidistantly arranged on the arc-shaped inclined plane, and an arc-shaped throwing block (616) is arranged on the rod wall of the centrifugal throwing strip (611).
9. A chef machine comprising a capacitive low noise motor as claimed in claim 8, characterized in that: the kitchen machine further comprises a chef machine body (7), a driving cavity (8) is arranged in the chef machine body (7), the capacitive low-noise motor is arranged in the driving cavity (8), and air ports are formed in the top and the bottom of the driving cavity (8).
10. The chef machine of claim 9 wherein: the air port is provided with a filter screen (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311753716.4A CN117439336B (en) | 2023-12-20 | 2023-12-20 | Capacitive low-noise motor and chef machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311753716.4A CN117439336B (en) | 2023-12-20 | 2023-12-20 | Capacitive low-noise motor and chef machine |
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| CN117439336B CN117439336B (en) | 2024-03-12 |
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| JP2001086706A (en) * | 1999-09-17 | 2001-03-30 | Hitachi Ltd | Ac generator for vehicle |
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| CN110890810A (en) * | 2019-11-30 | 2020-03-17 | 嘉兴新博信息科技有限公司 | Braking mechanism driven by motor |
| CN110994900A (en) * | 2020-01-09 | 2020-04-10 | 东阳悟伦电子科技有限公司 | Motor equipment of controllable cooling system |
| CN111969770A (en) * | 2020-09-24 | 2020-11-20 | 山东博发智能科技有限公司 | Operation safety protection structure for motor |
| CN112290741A (en) * | 2020-10-19 | 2021-01-29 | 苏州朗高电机有限公司 | New forms of energy ore deposit card driving motor with high-efficient heat radiation structure |
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2023
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001086706A (en) * | 1999-09-17 | 2001-03-30 | Hitachi Ltd | Ac generator for vehicle |
| US20110180286A1 (en) * | 2008-05-29 | 2011-07-28 | Hitachi Koki Co., Tld | Electric Power Tool |
| CN110649745A (en) * | 2018-06-27 | 2020-01-03 | 湖北升玛电子有限公司 | Motor with heat dissipation structure |
| CN110890810A (en) * | 2019-11-30 | 2020-03-17 | 嘉兴新博信息科技有限公司 | Braking mechanism driven by motor |
| CN110994900A (en) * | 2020-01-09 | 2020-04-10 | 东阳悟伦电子科技有限公司 | Motor equipment of controllable cooling system |
| CN111969770A (en) * | 2020-09-24 | 2020-11-20 | 山东博发智能科技有限公司 | Operation safety protection structure for motor |
| CN112290741A (en) * | 2020-10-19 | 2021-01-29 | 苏州朗高电机有限公司 | New forms of energy ore deposit card driving motor with high-efficient heat radiation structure |
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| CN117439336B (en) | 2024-03-12 |
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