CN117595564B - Low electromagnetic sound alternating current motor and chef machine - Google Patents
Low electromagnetic sound alternating current motor and chef machine Download PDFInfo
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- CN117595564B CN117595564B CN202410079346.9A CN202410079346A CN117595564B CN 117595564 B CN117595564 B CN 117595564B CN 202410079346 A CN202410079346 A CN 202410079346A CN 117595564 B CN117595564 B CN 117595564B
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- 238000009413 insulation Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 16
- 230000009467 reduction Effects 0.000 claims abstract description 16
- 239000000872 buffer Substances 0.000 claims description 58
- 230000017525 heat dissipation Effects 0.000 claims description 19
- 238000004898 kneading Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 9
- 230000030279 gene silencing Effects 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 18
- 230000003313 weakening effect Effects 0.000 abstract 1
- 238000010411 cooking Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 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
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/044—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the top side
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- 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
- 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
-
- 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
Abstract
The invention relates to the technical field of motors, but not limited to, discloses a low electromagnetic sound alternating current motor and a chef machine, wherein the low electromagnetic sound alternating current motor comprises an iron core, a coil arranged on the iron core, a rotor arranged in the iron core, a motor bracket arranged on the iron core, and a noise reduction unit; the noise reduction unit is connected with the motor bracket and used for reducing motor noise; the noise reduction unit comprises a bottom plate and a damping component arranged on the bottom plate; the damping component is connected with the motor bracket and used for weakening vibration noise of the motor. The low electromagnetic sound alternating current motor reduces vibration transmission of the motor in the horizontal direction and the vertical direction through the damping component; through the sound insulation component, the transmission of motor electromagnetic sound is obstructed, and the effect of noise reduction is achieved.
Description
Technical Field
The invention relates to the technical field of motors, but not limited to, and in particular relates to a low electromagnetic sound alternating current motor and a chef machine.
Background
The chef machine (KitchenAid Stand Mixer) is a multifunctional kitchen appliance and can finish multiple tasks of food material mixing, stirring, whipping, dough kneading and the like. It secures a beater head to the top by means of a base. Chefs are typically powered by an electric motor, the mixer head of which is equipped with an adjustable mixing bowl, and various types of mixer accessories, such as mixers, whisks, dough hooks, etc. The biggest shortcoming of chefs machine on the market is that the electromagnetic noise that the motor produced influences user's use experience, and the better kneading dough effect needs the motor power to be big more moreover, leads to the electromagnetic noise of motor to be big more.
The utility model discloses a novel low noise chef machine in patent publication number CN217937986U, which comprises a frame, be equipped with the aircraft nose subassembly in the frame, planet wheel and driven shaft coaxial line setting and fixed connection, ring gear and casing fixed connection, planet wheel and ring gear meshing, driving shaft and motor transmission are connected, the axis of driving shaft and driven shaft is parallel to each other, the one end and the driving shaft fixed connection of planet carrier, the other end and driven shaft rotatable coupling, the driven shaft rotation makes the driven shaft realize compound motion when the axis revolution of driven shaft is driven in the driving shaft rotation, and this structure only has the meshing of planet wheel and ring gear, make the operational noise greatly reduced of chef machine, the one end that the driven shaft was kept away from to the planet carrier is provided with the balancing piece, the balancing piece makes the circumference weight of driving shaft relatively even, avoid chef power output shake, thereby noise that produces when reducing the operation.
The prior art has the following defects:
electromagnetic noise of the motor is mainly caused by magnetic force and vibration generated when current moves in a magnetic field. These vibrations can be transmitted to the mechanical structure of the motor and other parts nearby, further increasing the noise level; in addition, the axis of the motor and the gear are also affected by the time-varying magnetic field, thereby generating noise; in order to reduce electromagnetic noise, some technical means are widely used, such as using insulating materials to isolate vibration and noise, reducing unbalance of current and magnetic field, and using control circuits to reduce noise.
The prior art does not solve the vibration transmission between motor and the casing, and the shell of chef machine is given in the vibration transmission of motor through the motor support, makes whole chef machine production resonance, and this is the main reason that chef machine produced noise, and ordinary motor shell is difficult to the electromagnetic noise that isolated rotor rotated and produced in addition.
Disclosure of Invention
In view of the fact that in the prior art, vibration noise is caused by the fact that vibration of a motor is transmitted to a chef machine, and electromagnetic sound generated by rotation of the motor cannot be isolated by a motor shell, a low electromagnetic sound alternating current motor and the chef machine are provided.
In one aspect of the present application, there is provided a bass electromagnetic sound ac motor, the purpose of which is: the vibration of the motor is reduced and transmitted to the chef machine, and the electromagnetic sound transmission of the motor is reduced through physical isolation.
The technical scheme of the invention is as follows: a low electromagnetic sound alternating current motor comprises an iron core, a coil arranged on the iron core, a rotor arranged in the iron core, a motor bracket arranged on the iron core, and a noise reduction unit;
the noise reduction unit is connected with the motor bracket;
the noise reduction unit comprises a bottom plate and a damping component arranged on the bottom plate;
the damping component is connected with the motor bracket;
the damping component comprises a motor shell arranged on a motor bracket, an arc-shaped groove arranged on a bottom plate, a supporting rod arranged between the motor shell and the bottom plate, a semicircular ball head arranged at the upper end of the supporting rod, an arc-shaped hole arranged on the bottom plate, a buffer rod arranged on the motor shell, an elastic piece I sleeved on the buffer rod and a fixing bolt arranged at the end part of the buffer rod;
the supporting rod is connected with the semicircular ball head, the semicircular ball head is attached to the arc-shaped groove and slides in the arc-shaped groove, the buffer rod penetrates through the arc-shaped hole and slides in the arc-shaped hole, and the elastic piece I is arranged between the bottom plate and the fixing bolt.
By adopting the scheme, the motor shell is elastically connected with the bottom plate, when the motor vibrates in the vertical direction, the elastic piece is compressed for a while, part of vibration is counteracted, vibration transmission between the motor shell and the bottom plate is reduced, vibration of the whole chef machine is reduced, and noise generated when the chef machine is used is reduced.
Further, the damping component further comprises an arc edge arranged on the arc hole, an upper fixing ring and a lower fixing ring sleeved on the buffer rod;
the edge of arc border arc hole sets up, the up end of arc limit sets up to the arc and caves in, the lower terminal surface of lower solid fixed ring sets up to the arc arch, arc is sunken and the protruding sliding contact of arc.
By adopting the scheme, when the motor generates vibration in the horizontal direction, the motor shell slightly rotates, the semicircular ball head slides in the arc-shaped groove, meanwhile, the buffer rod slides in the arc-shaped hole, the lower fixing ring can be lifted by the arc-shaped recess when sliding left and right, the first elastic piece is extruded, the lower fixing ring has a trend of returning to the lowest point of the arc-shaped recess under the extrusion of the first elastic piece, and therefore the effect of reducing vibration transmission in the horizontal direction of the motor shell is achieved, and vibration noise of a chef machine is reduced.
Further, the buffer rod is provided with a sliding groove, the upper fixing ring and the lower fixing ring are provided with sliding protrusions, and the sliding groove is matched with the sliding protrusions.
By adopting the scheme, the upper fixing ring and the lower fixing ring are ensured to move in the vertical direction.
Further, the shock absorbing assembly further includes a pair of shock absorbing members disposed between the motor housing and the base plate; the pair of buffer parts are respectively connected with the bottom plate and the motor shell;
the buffer piece comprises a fixed table, an extension table arranged on the fixed table and buffer teeth arranged on the extension table, wherein the buffer teeth are meshed with each other through the buffer teeth, and the buffer teeth are made of elastic materials.
By adopting the scheme, through the buffer teeth of the two groups of buffer parts meshed with each other, when the motor shell rotates, the buffer teeth with elasticity elastically deform to counteract the vibration generated by the rotation of the motor shell, so that the noise caused by vibration transmission is reduced.
Further, the noise reduction unit further comprises a sound insulation component, wherein the sound insulation component is arranged in the motor shell and used for isolating noise generated by rotation of the motor;
the sound insulation assembly comprises a first radiating fan and a second radiating fan which are arranged on the rotor, a motor inner shell arranged in the motor outer shell, an air outlet first arranged at the top end of the motor outer shell, an air outlet second arranged at the side surface of the motor outer shell, an air inlet first arranged at the bottom of the motor outer shell and an air inlet second arranged at the bottom of the motor inner shell;
the first cooling fan is positioned in the motor outer shell, the second cooling fan is positioned below the motor outer shell, and a sound insulation cavity is formed between the motor outer shell and the motor inner shell.
By adopting the scheme, through setting up double-deck motor shell, can greatly increased the separation effect of shell to motor noise when guaranteeing the heat dissipation.
Further, a wind shield is arranged at one position of the air inlet.
By adopting the scheme, through the wind shield, the air entering from the second air inlet is reduced to enter the motor inner shell, so that most of the air enters the sound insulation cavity.
Further, the inner wall of the motor inner shell is provided with a silencing plate, and the silencing plate consists of two L-shaped plates which are symmetrical in center.
By adopting the scheme, through the arrangement of the silencer plate, the surface area of the motor inner shell is increased, the increased surface area can be helpful to sound absorption to a certain extent, when sound propagates to the surface of an object, part of energy can be reflected back, and the other part can be absorbed. Increasing the surface area may provide more surface to absorb sound energy, thereby reducing sound reflection and echo generation.
Further, the motor inner shell is provided with a heat dissipation hole.
By adopting the scheme, due to the arrangement of the wind shield, the air entering the motor inner shell from the second air inlet is reduced, most of the air enters the sound insulation cavity, the air flow rate in the sound insulation cavity is larger than that in the motor inner shell, the faster the air flow rate is, the smaller the local air pressure is, the hot air in the motor inner shell can flow into the sound insulation cavity through the heat dissipation holes, and is discharged from the second air outlet, so that the heat dissipation effect of the motor is improved while the sound insulation effect is ensured.
Furthermore, the invention also provides a chef machine, which adopts the low electromagnetic sound alternating current motor, wherein the low electromagnetic sound alternating current motor is arranged in the chef machine and further comprises a plastic shell, a cooking kettle arranged on the plastic shell, a dough kneading rod arranged in the cooking kettle and a transmission unit arranged in the plastic shell; the transmission unit is in transmission connection with the rotor and the dough kneading rod.
By adopting the scheme, the motor rotates to drive the dough kneading rod to rotate through the transmission unit, so that the dough kneading function is achieved.
Further, a sucking disc is arranged at the bottom of the plastic shell.
By adopting the scheme, the chef machine can be fixed on a table top through the sucker when in use, and the use is convenient.
The invention has the beneficial effects that:
1. the motor can generate vibration in the up-down direction and vibration in the horizontal direction in the rotation process, the first elastic piece enables the base plate to be elastically connected with the motor shell in an extrusion mode for vibration in the vertical direction, and vibration of the motor shell in the vertical direction is buffered by compression of the first elastic piece; for the vibration of the motor shell in the horizontal direction, the elastic piece I is extruded to buffer when the lower fixing ring moves left and right on the circular arc edge; meanwhile, 2 groups of buffer parts are meshed oppositely, and partial rotation vibration is counteracted by mutually rotating and extruding elastic buffer teeth, so that vibration transmission between the motor shell and the bottom plate is reduced.
2. In the motor rotation process, besides noise generated by motor vibration, electromagnetic noise can be directly transmitted through air, so that a cavity can be formed between the two layers of shells by arranging the motor inner shell and the motor outer shell, the noise isolation effect is increased, and more noise is absorbed by arranging the silencing plate on the motor inner shell; meanwhile, in order to solve the heat dissipation problem brought by the double-layer shell structure, the first heat dissipation fan is arranged in the motor inner shell, hot air is pumped outwards, the second heat dissipation fan is arranged below the motor outer shell and used for conveying cold air into the shell, the cold air enters the motor outer shell and the motor inner shell through the second air inlet, the first air inlet is provided with the wind shield, the air quantity flowing into the sound insulation cavity is larger than the air quantity flowing into the motor inner shell, the higher air speed in the sound insulation cavity can form lower air pressure, the hot air in the motor inner shell is pumped into the sound insulation cavity and is discharged from the second air outlet, and the heat dissipation effect of the motor is improved while the sound insulation effect is ensured.
Drawings
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a front view of a first embodiment of the present invention;
FIG. 3 is a top view of a first embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is an exploded view of an embodiment of the present invention;
FIG. 6 is another perspective view of an exploded view of an embodiment of the present invention;
FIG. 7 is a block diagram of a buffer rod according to one embodiment of the present invention;
FIG. 8 is an exploded view of a buffer rod according to a first embodiment of the present invention;
FIG. 9 is an exploded view of a buffer member according to a first embodiment of the present invention;
FIG. 10 is a cross-sectional view of a second embodiment of the present invention;
FIG. 11 is a perspective view of a second motor housing according to an embodiment of the present invention;
FIG. 12 is a perspective view of a second motor housing according to an embodiment of the present invention from another perspective;
FIG. 13 is an internal structural view of a motor housing according to an embodiment of the present invention;
FIG. 14 is an internal construction view of the inner housing of the two-motor according to the embodiment of the present invention;
fig. 15 is a perspective view of a third embodiment of the present invention;
FIG. 16 is a top view of a third embodiment of the invention;
FIG. 17 is a cross-sectional view taken at B-B of FIG. 16 in accordance with the present invention;
in the figure:
1. an iron core; 2. a coil; 3. a rotor; 4. a motor bracket; 5. a bottom plate; 6. a shock absorbing assembly; 7. a motor housing; 8. an arc-shaped groove; 9. a support rod; 10. a semicircular ball head; 11. an arc-shaped hole; 12. a buffer rod; 13. an elastic piece I; 14. a fixing bolt; 15. an arc edge; 16. an upper fixing ring; 17. a lower fixing ring; 18. arc-shaped concave; 19. arc-shaped bulges; 20. a sliding groove; 21. a sliding protrusion; 22. a buffer member; 23. a fixed table; 24. an extension table; 25. buffer teeth; 26. a sound isolation assembly; 27. a first heat radiation fan; 28. a second heat dissipation fan; 29. a motor inner case; 30. an air outlet I; 31. an air outlet II; 32. an air inlet I; 33. an air inlet II; 34. a sound-insulating cavity; 35. a wind deflector; 36. a muffler plate; 37. a heat radiation hole; 38. a plastic housing; 39. a cooking kettle; 40. a dough kneading rod; 41. and a sucking disc.
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 9, provides a bass electromagnetic ac motor according to a first embodiment of the present invention, comprising an iron core 1, a coil 2 provided on the iron core 1, a rotor 3 provided in the iron core 1, and a motor bracket 4 provided on the iron core 1, and further comprising a noise reduction unit; the noise reduction unit is connected with the motor bracket 4 and is used for reducing motor noise; the noise reduction unit comprises a bottom plate 5 and a damping component 6 arranged on the bottom plate 5; the damping assembly 6 is connected to the motor bracket 4 for damping vibration noise of the motor.
Referring to fig. 1 to 6, the damper assembly 6 includes a motor housing 7 provided on the motor bracket 4, an arc-shaped groove 8 provided on the base plate 5, a support rod 9 provided between the motor housing 7 and the base plate 5, a semicircular ball head 10 provided at an upper end of the support rod 9, an arc-shaped hole 11 provided on the base plate 5, a buffer rod 12 provided on the motor housing 7, an elastic member 13 sleeved on the buffer rod 12, and a fixing bolt 14 provided at an end of the buffer rod 12.
The supporting rod 9 is connected with the semicircular ball head 10, the semicircular ball head 10 is attached to the arc-shaped groove 8 and slides in the arc-shaped groove 8, the buffer rod 12 passes through the arc-shaped hole 11 and slides in the arc-shaped hole 11, and the elastic piece I13 is arranged between the bottom plate 5 and the fixing bolt 14.
Specifically, the damping components 6 are arranged into 4 groups, the damping components are circumferentially arranged by taking the rotor 3 as the center of a circle, the lower end of the supporting rod 9 is fixedly connected with the top end of the motor shell 7 through threads, and the upper end of the supporting rod 9 is fixedly connected with the semicircular ball head 10; the lower extreme and the motor housing 7 fixed connection of buffer rod 12, buffer rod 12 pass arc hole 11, and the cover is equipped with elastic component one 13 on the buffer rod 12, and fixing bolt 14 is connected to buffer rod 12 upper end, prevents through setting up the bayonet lock on buffer rod 12 that fixing bolt 14 from loosening.
By means of the elastic connection between the motor housing 7 and the bottom plate 5, when the motor vibrates in the vertical direction, the first elastic piece 13 is compressed to counteract part of vibration, so that vibration transmission between the motor housing 7 and the bottom plate 5 is reduced, vibration of the whole chef machine is reduced, and noise generated when the chef machine is used is reduced.
Referring to fig. 5-6, the shock absorbing assembly 6 further includes an arcuate edge 15 disposed over the arcuate aperture 11, and upper and lower retaining rings 16 and 17 that are sleeved over the buffer rod 12.
The arc edge 15 is arranged along the edge of the arc hole 11, the upper end face of the arc edge 15 is provided with an arc-shaped concave 18, the lower end face of the lower fixing ring 17 is provided with an arc-shaped convex 19, and the arc-shaped concave 18 and the arc-shaped convex 19 are in sliding contact.
Specifically, annular grooves are formed in the upper fixing ring 16 and the lower fixing ring 17, the first elastic piece 13 is clamped in the annular grooves, the lower fixing ring 17 abuts against the arc-shaped edge 15 under the action of the first elastic piece 13, and the arc-shaped protrusion 19 has a tendency of moving towards the lowest point of the arc-shaped recess 18.
When the motor vibrates horizontally, the motor shell 7 rotates slightly, the semicircular ball head 10 slides in the arc-shaped groove 8, meanwhile, the buffer rod 12 slides in the arc-shaped hole 11, the lower fixing ring 17 is lifted by the arc-shaped concave 18 when sliding left and right, the elastic piece I13 is extruded, the lower fixing ring 17 has a trend of returning to the lowest point of the arc-shaped concave 18 under the extrusion of the elastic piece I13, and therefore the effect of reducing vibration transmission of the motor shell 7 in the horizontal direction is achieved, and vibration noise of a chef machine is reduced.
Referring to fig. 5 to 6, the buffer rod 12 is provided with a sliding groove 20, and the upper and lower fixing rings 16 and 17 are provided with sliding protrusions 21, and the sliding groove 20 is matched with the sliding protrusions 21.
By providing the sliding projection 21 and the sliding groove 20, the upper and lower fixing rings 16 and 17 are ensured to move in the vertical direction.
Referring to fig. 2 and 9, the damper assembly 6 further includes a pair of buffers 22 disposed between the motor housing 7 and the base plate 5; a pair of cushioning members 22 are connected to the base plate 5 and the motor housing 7, respectively.
The cushioning members 22 include a fixed table 23, an extension table 24 provided on the fixed table 23, and cushioning teeth 25 provided on the extension table 24, and the pair of cushioning members 22 are engaged with each other by the cushioning teeth 25, and the cushioning teeth 25 are made of an elastic material.
Specifically, the 2 groups of fixed tables 23 are fixedly connected with the bottom plate 5 and the motor housing 7, the 2 groups of buffer teeth 25 are made of rubber materials and meshed with each other, mutual extrusion does not occur in a natural state, and when the motor is started, the sides of the 2 groups of buffer teeth 25 are in contact with each other for extrusion, so that vibration of the motor housing 7 in the horizontal direction is counteracted.
Through the mutual engagement of the buffer teeth 25 of the two groups of buffer members 22, when the motor housing 7 rotates, the buffer teeth 25 with elasticity elastically deform to counteract the vibration generated by the rotation of the motor housing 7, thereby reducing the noise caused by vibration transmission.
In the use process, the motor can generate vibration in the up-down direction and vibration in the horizontal direction in the rotation process, for the vibration in the vertical direction, the elastic piece I13 enables the base plate 5 and the motor shell 7 to be elastically connected in an extrusion mode, and the vibration of the motor shell 7 in the vertical direction is buffered by compression of the elastic piece I13; for the vibration of the motor housing 7 in the horizontal direction, the first elastic member 13 is pressed to buffer when the lower fixing ring 17 moves left and right on the circular arc edge; at the same time, the 2 sets of opposite meshed buffer pieces 22 are mutually rotated and pressed by the elastic buffer teeth 25 to counteract part of rotation vibration, so that vibration transmission between the motor housing 7 and the bottom plate 5 is reduced.
Embodiment 2, referring to fig. 1-14, is a second embodiment of the present invention, which differs from the first embodiment in that: the noise reduction unit further comprises a sound insulation assembly 26, wherein the sound insulation assembly 26 is arranged in the motor shell 7 and is used for isolating noise generated by motor rotation;
referring to fig. 10 to 12, the soundproof assembly 26 includes a first radiator fan 27 and a second radiator fan 28 provided on the rotor 3, a motor inner case 29 provided in the motor outer case 7, an air outlet first 30 provided at the top end of the motor outer case 7, an air outlet second 31 provided at the side of the motor outer case 7, an air inlet first 32 provided at the bottom of the motor outer case 7, and an air inlet second 33 provided at the bottom of the motor inner case 29.
The first radiator fan 27 is located in the motor outer housing 7, the second radiator fan 28 is located below the motor outer housing 7, and a sound insulation cavity 34 is formed between the motor outer housing 7 and the motor inner housing 29.
Specifically, the double-layer shell provided with the motor inner shell 29 and the motor outer shell 7 can form a cavity between the two layers of shells, so that the noise isolation effect is increased; meanwhile, the first cooling fan 27 pumps hot air outwards, and the first cooling fan 27 blows cold air into the shell, so that the cooling effect of the motor is improved.
Through setting up double-deck motor shell, can greatly increased the separation effect of shell to motor noise when guaranteeing the heat dissipation.
Referring to fig. 14, a wind deflector 35 is provided at the first wind inlet 32.
Specifically, the wind guard 35 is in an inverted "man" shape, the first air inlet 32 is formed at two wings of the wind guard 35, and meanwhile, the wind guard 35 and the air inlet are arranged in multiple groups.
By the air deflector 35, the air entering from the second air inlet 33 is reduced from entering the motor inner housing 29, causing a substantial portion of the air to enter the sound-deadening chamber 34.
Referring to fig. 14, the inner wall of the motor inner case 29 is provided with a muffler plate 36, and the muffler plate 36 is composed of two centrally symmetrical L-shaped plates.
Specifically, the muffler plates 36 are made of fiber boards, and have the function of absorbing sound waves, and a plurality of groups of muffler plates 36 are arranged on the inner wall of the motor inner case 29.
By providing the muffler plate 36, the surface area of the motor inner housing 29 is increased, which may help to some extent to dampen sound, as sound propagates to the surface of an object, a portion of the energy is reflected back and another portion is absorbed. Increasing the surface area may provide more surface to absorb sound energy, thereby reducing sound reflection and echo generation.
Referring to fig. 14, the motor inner case 29 is provided with a heat radiation hole 37.
Specifically, a plurality of groups of heat dissipation holes 37 are provided, corresponding to the number of the muffler plates 36, and the heat dissipation holes 37 are provided at the center of the muffler plates 36.
Due to the arrangement of the wind shield 35, the air entering from the air inlet II 33 is reduced to enter the motor inner shell 29, so that most of the air enters the sound insulation cavity 34, the air flow rate in the sound insulation cavity 34 is larger than that in the motor inner shell 29, the air pressure in the place with the faster air flow rate is smaller, the hot air in the motor inner shell 29 can flow into the sound insulation cavity 34 through the heat dissipation holes 37 and is discharged from the air outlet II 31, and the heat dissipation effect of the motor is improved while the sound insulation effect is ensured.
In the use process, in addition to noise generated by motor vibration in the motor rotation process, electromagnetic noise can be directly transmitted through air, so that a cavity can be formed between the two layers of shells by arranging the motor inner shell 29 and the motor outer shell 7, the noise isolation effect is increased, and more noise is absorbed by arranging the silencer plate 36 on the motor inner shell 29; meanwhile, in order to solve the heat dissipation problem brought by the double-layer shell structure, the first heat dissipation fan 27 is arranged in the motor inner shell 29, hot air is pumped outwards, the second heat dissipation fan 28 is arranged below the motor outer shell 7, cold air is conveyed into the shell, the cold air enters the motor outer shell 7 and the motor inner shell 29 through the second air inlet 33, the first air inlet 32 is provided with the wind shield 35, the air quantity flowing into the sound insulation cavity 34 is larger than the air quantity flowing into the motor inner shell 29, lower air pressure is formed by higher air speed in the sound insulation cavity 34, the hot air in the motor inner shell 29 is pumped into the sound insulation cavity 34 and is discharged from the second air outlet 31, and the heat dissipation effect of the motor is improved while the sound insulation effect is ensured. The rest of the structure is the same as that of embodiment 1.
Embodiment 3, referring to fig. 15-17, a third embodiment of the present invention provides a cook machine, which employs a bass electromagnetic sound ac motor, wherein the bass electromagnetic sound ac motor is disposed in the cook machine and comprises a plastic housing 38, a cooking kettle 39 disposed on the plastic housing 38, a dough kneading bar 40 disposed in the cooking kettle 39, and a transmission unit disposed in the plastic housing 38; the transmission unit is in transmission connection with the rotor 3 and the kneading bars 40.
The motor rotates to rotate the kneading bars 40 through the transmission unit, and plays a role in kneading dough.
The plastic housing 38 is provided with suction cups 41 at the bottom.
Through the sucker 41, the chef machine can be fixed on a table top when in use, and the use is convenient.
In the use process, the chef machine is fixed on a table top, and then the food materials to be stirred, kneaded or mixed are put into a cooking kettle 39; fixing a stirring paddle or a dough kneading rod 40 or an eggbeater to the transmission unit; the cooking kettle 39 is transferred to a position below the machine body and rotated, so that the cooking kettle is completely locked on the machine head; adjusting the rotation speed (if necessary) and pressing a power button to start operation; after the completion, the power supply of the machine is firstly turned off, then the stirring paddle or the dough kneading rod 40 or the eggbeater is removed, and finally the cooking kettle 39 is taken down.
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 (6)
1. The utility model provides a bass electromagnetic sound alternating current motor, includes iron core (1), sets up coil (2) on iron core (1), sets up rotor (3) and motor support (4) of setting on iron core (1) in iron core (1), its characterized in that: the device also comprises a noise reduction unit;
the noise reduction unit is connected with the motor bracket (4);
the noise reduction unit comprises a bottom plate (5) and a damping component (6) arranged on the bottom plate (5);
the damping component (6) is connected with the motor bracket (4);
the damping component (6) comprises a motor shell (7) arranged on the motor bracket (4), an arc-shaped groove (8) arranged on the bottom plate (5), a supporting rod (9) arranged between the motor shell (7) and the bottom plate (5), a semicircular ball head (10) arranged at the upper end of the supporting rod (9), an arc-shaped hole (11) arranged on the bottom plate (5), a buffer rod (12) arranged on the motor shell (7), an elastic piece I (13) sleeved on the buffer rod (12) and a fixing bolt (14) arranged at the end part of the buffer rod (12);
the support rod (9) is connected with the semicircular ball head (10), the semicircular ball head (10) is attached to the arc-shaped groove (8) and slides in the arc-shaped groove (8), the buffer rod (12) passes through the arc-shaped hole (11) and slides in the arc-shaped hole (11), and the elastic piece I (13) is arranged between the bottom plate (5) and the fixing bolt (14);
the damping component (6) further comprises an arc edge (15) arranged on the arc hole (11), an upper fixing ring (16) and a lower fixing ring (17) sleeved on the buffer rod (12);
the arc-shaped side (15) is arranged along the edge of the arc-shaped hole (11), the upper end surface of the arc-shaped side (15) is provided with an arc-shaped concave (18), the lower end surface of the lower fixing ring (17) is provided with an arc-shaped convex (19), and the arc-shaped concave (18) and the arc-shaped convex (19) are in sliding contact;
the buffer rod (12) is provided with a sliding groove (20), the upper fixing ring (16) and the lower fixing ring (17) are provided with sliding protrusions (21), and the sliding groove (20) is matched with the sliding protrusions (21);
the shock absorbing assembly (6) further comprises a pair of cushioning members (22) disposed between the motor housing (7) and the base plate (5); a pair of the buffer members (22) are respectively connected with the bottom plate (5) and the motor shell (7);
the buffer parts (22) comprise a fixed table (23), an extension table (24) arranged on the fixed table (23) and buffer teeth (25) arranged on the extension table (24), wherein a pair of buffer parts (22) are meshed with each other through the buffer teeth (25), and the buffer teeth (25) are made of elastic materials;
the noise reduction unit further comprises a sound insulation assembly (26), wherein the sound insulation assembly (26) is arranged in the motor shell (7) and is used for isolating noise generated by motor rotation;
the sound insulation assembly (26) comprises a first cooling fan (27) and a second cooling fan (28) which are arranged on the rotor (3), a motor inner shell (29) arranged in the motor outer shell (7), a first air outlet (30) arranged at the top end of the motor outer shell (7), a second air outlet (31) arranged on the side surface of the motor outer shell (7), a first air inlet (32) arranged at the bottom of the motor outer shell (7) and a second air inlet (33) arranged at the bottom of the motor inner shell (29);
the first cooling fan (27) is positioned in the motor outer shell (7), the second cooling fan (28) is positioned below the motor outer shell (7), and a sound insulation cavity (34) is formed between the motor outer shell (7) and the motor inner shell (29).
2. The bass-tone ac motor of claim 1, wherein: a wind deflector (35) is arranged at the first air inlet (32).
3. The bass-alternating-current motor according to claim 2, wherein: the inner wall of the motor inner shell (29) is provided with a silencing plate (36), and the silencing plate (36) consists of two L-shaped plates which are symmetrical in center.
4. A bass-alternating-current motor according to claim 3, characterized in that: and the motor inner shell (29) is provided with a heat dissipation hole (37).
5. A chef machine employing the bass electromagnetic sonic ac motor of claim 4, said bass electromagnetic sonic ac motor being disposed within the chef machine, characterized in that: the food processing kettle also comprises a plastic shell (38), a food processing kettle (39) arranged on the plastic shell (38), a dough kneading rod (40) arranged in the food processing kettle (39), and a transmission unit arranged in the plastic shell (38);
the transmission unit is in transmission connection with the rotor (3) and the dough kneading rod (40).
6. The chef machine of claim 5 wherein: the bottom of the plastic shell (38) is provided with a sucker (41).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410079346.9A CN117595564B (en) | 2024-01-19 | 2024-01-19 | Low electromagnetic sound alternating current motor and chef machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410079346.9A CN117595564B (en) | 2024-01-19 | 2024-01-19 | Low electromagnetic sound alternating current motor and chef machine |
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| CN117595564A CN117595564A (en) | 2024-02-23 |
| CN117595564B true CN117595564B (en) | 2024-03-15 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203647169U (en) * | 2013-11-21 | 2014-06-18 | 广东顺德高达科菲电器制造有限公司 | Low-noise bubble milk machine |
| CN108962209A (en) * | 2018-06-19 | 2018-12-07 | 广东美的白色家电技术创新中心有限公司 | A kind of silencing apparatus and household electrical appliance |
| CN211370558U (en) * | 2019-11-25 | 2020-08-28 | 江苏星光发电设备有限公司 | Diesel generator noise reduction device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638817B (en) * | 2015-02-15 | 2018-05-29 | 莱克电气股份有限公司 | The noise reduction structure of motor and dust catcher of dust catcher |
-
2024
- 2024-01-19 CN CN202410079346.9A patent/CN117595564B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203647169U (en) * | 2013-11-21 | 2014-06-18 | 广东顺德高达科菲电器制造有限公司 | Low-noise bubble milk machine |
| CN108962209A (en) * | 2018-06-19 | 2018-12-07 | 广东美的白色家电技术创新中心有限公司 | A kind of silencing apparatus and household electrical appliance |
| CN211370558U (en) * | 2019-11-25 | 2020-08-28 | 江苏星光发电设备有限公司 | Diesel generator noise reduction device |
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| CN117595564A (en) | 2024-02-23 |
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