CN117856514A - Flattening motor - Google Patents
Flattening motor Download PDFInfo
- Publication number
- CN117856514A CN117856514A CN202311769715.9A CN202311769715A CN117856514A CN 117856514 A CN117856514 A CN 117856514A CN 202311769715 A CN202311769715 A CN 202311769715A CN 117856514 A CN117856514 A CN 117856514A
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- China
- Prior art keywords
- heat dissipation
- motor
- stator
- dissipation chamber
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 159
- 238000004804 winding Methods 0.000 claims abstract description 110
- 238000004891 communication Methods 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 5
- 230000036961 partial effect Effects 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 abstract description 25
- 230000005484 gravity Effects 0.000 abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 24
- 238000000034 method Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 230000000670 limiting effect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- A47J43/046—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 bottom side
-
- 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
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
-
- 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
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- 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
Abstract
The invention discloses a flattened motor, which comprises a motor shaft, a rotor wrapping the motor shaft, a stator wrapping the rotor and a bracket forming an axial end face of the motor, wherein the bracket is positioned above and/or below the stator, a heat dissipation cavity is formed in the motor, the stator comprises a stator iron core and at least three stator windings distributed around the rotor, at least part of the heat dissipation cavity is formed between the bracket and the stator iron core, the heat dissipation cavity positioned between the bracket and the stator iron core extends along the radial direction and guides air to flow through the stator windings along the radial direction, the bracket completely covers the rotor and the stator in the radial direction, the heat dissipation cavity comprises a heat dissipation cavity inlet for air to enter the heat dissipation cavity and a heat dissipation cavity outlet for air to leave the heat dissipation cavity, and the heat dissipation cavity inlet and the heat dissipation cavity outlet are positioned on the side wall of the motor. The beneficial effects of the invention are as follows: the motor can be reduced in height, and the height of the food processor using the motor can be further reduced, so that the gravity center of the food processor is reduced, and noise is reduced.
Description
Technical Field
The invention relates to a food processing technology, in particular to a flattening motor applied to a flattening food processor.
Background
The existing food processor includes a housing and a blender cup mounted to the housing. A motor is arranged in the machine base, and a crushing cutter is arranged in the stirring cup. The motor drives the crushing knife to rotate so as to crush food materials in the stirring cup.
The motor comprises a motor shaft, a rotor wrapping the motor shaft, a stator wrapping the rotor, an upper bracket positioned above the stator and a lower bracket positioned below the stator. The upper end of the motor shaft penetrates through the upper bracket and then drives the crushing cutter to rotate, and the lower end of the motor shaft penetrates through the lower bracket and then is connected with a fan. The rotor comprises a rotor core and a rotor winding, the stator comprises a stator core and a stator winding, and heat of the motor is mainly sourced from the rotor winding and the stator winding. In the process that the motor shaft drives the crushing cutter to rotate, the motor shaft synchronously drives the fan to rotate, so that air can flow through the motor, and heat dissipation of the motor, particularly the rotor winding and the stator winding is realized.
The stator windings are arranged in two, and the two stator windings are symmetrically distributed on two sides of the rotor in the radial direction. Each stator winding is formed by a plurality of coils superimposed in the radial direction. Each coil includes a circumferentially extending segment and an axially extending segment. The length of the axial extension section influences the rotating speed of the motor, and the circumferential extension section simply generates heat without influencing the rotating speed of the motor. Therefore, in order to increase the rotation speed of the motor, the length of the axial extension of each coil needs to be increased, so that the height of the existing motor is larger, and finally, the center of gravity of the food processor is higher, noise is easy to generate, and the improvement is needed.
Disclosure of Invention
The invention aims to provide a flattening motor. The motor can reduce the height of the food processor applying the motor, thereby reducing the gravity center of the food processor and reducing the noise.
The technical aim of the invention is realized by the following technical scheme:
a flattened motor, the motor includes the motor shaft, wraps up the rotor of motor shaft, wraps up the stator of rotor and forms the support of motor axial terminal surface, the support is located stator top and/or stator below, the inside heat dissipation chamber that forms of motor, wherein, the stator includes stator core and at least three stator winding that encircles the rotor and distribute, form at least partial heat dissipation chamber between support and the stator core, the heat dissipation chamber that is located between support and the stator core extends along radial and guide air flow through stator winding along radial, the support covers completely in radial rotor and stator, the heat dissipation chamber is including the heat dissipation chamber import that is used for the air to get into the heat dissipation chamber and the heat dissipation chamber export that is used for the air to leave the heat dissipation chamber, heat dissipation chamber import and heat dissipation chamber export are located the motor lateral wall.
By adopting the above technical scheme, it is assumed that the length of each coil circumferential extension of the stator winding of the existing motor is S, the length of the axial extension is T, and for convenience of description, the coil is named as a first coil. The two coils are respectively provided with a circumferential extension section with the length of S/2 and an axial extension section with the length of T, and the two coils are named as second coils. At this time, the total length of the two second coil circumferential extension sections is the same as that of the first coil, and the ratio of the axial extension sections of each second coil is higher than that of the first coil, which is equivalent to that of the second coil, so that the rotating speed of the motor is easier to be increased. Therefore, when the length of the axial extension of the second coil is changed to T/2, the ratio of the axial extension of the second coil to the first coil is the same, and the total length of the two second coils and the first coil is the same for the same rotational speed of the motor. However, in this case, the axial extension of the second coil is half the length of the first coil. At this time, the height of the stator is reduced, and the height of the motor is also reduced. Thus, there are only two stator windings of the existing motor, whereas the stator windings of the present application are provided with at least three. Thus, in the case where the total length of the coil is unchanged, this means a decrease in the height of the motor.
From the standpoint of heat generation, the number of stator windings increases, resulting in a shorter axial extension of the individual stator windings, and therefore the heat generated by the individual stator windings in the axial direction decreases, but the individual stator windings are formed by stacking a plurality of coils in the radial direction. With the overall coil length unchanged, the width of the individual stator windings in the radial direction is unchanged. Thus, the heat generated by the individual stator windings in the radial direction is unchanged. In the case where the amount of heat generated in the axial direction of the single stator winding decreases and the amount of heat generated in the radial direction is unchanged, the heat duty ratio of the radial direction of the single stator winding increases.
The support is located above and/or below the stator, so that the support and the stator are displaced in the height direction. Therefore, a part of the heat dissipation chamber formed between the bracket and the stator core is also located below and/or above the bracket, and is offset from the bracket in the height direction. The heat dissipation cavity staggered with the support in height extends along the radial direction and guides air to flow through the stator winding along the radial direction, and the heat dissipation cavity is fully contacted with heat generated in the radial direction of the stator winding, so that a good carrying effect can be achieved, and the stator winding has good heat dissipation performance in the radial direction. Under the condition that the number of the stator windings is increased, the height of the motor is reduced, and the heat proportion of the radial generated heat of a single stator winding is increased, only when the heat dissipation cavity staggered in height with the support extends along the radial direction and simultaneously guides air to flow through the stator windings along the radial direction, the integral heat dissipation effect of the motor can be ensured.
The heat dissipation cavity of the existing motor extends along the axial direction, and heat generated in the axial direction of the stator winding is fully contacted at the moment, so that a good carrying effect can be achieved, and the heat dissipation performance of the stator winding in the axial direction is improved. However, the heat generated in the radial direction of the motor is insufficient in contact, so that a good carrying effect is difficult to achieve, and naturally, the heat radiation performance of the stator winding in the radial direction is difficult to improve. And under the condition that the number of the stator windings is increased, the height of the motor is reduced, and the heat duty ratio generated by the radial direction of a single stator winding is increased, the heat dissipation cavity of the existing motor extends along the axial direction, and the integral heat dissipation effect of the motor is naturally difficult to ensure.
In this application, under the holistic radiating effect of motor guaranteed the circumstances, the motor height can reduce for the focus of food processor can reduce, noise abatement produces.
By adopting the technical scheme, the bracket fully covers the stator, so that air enters the heat dissipation cavity from the lower part or the upper part of the bracket as much as possible, and the heat dissipation effect on the stator winding is enhanced.
The invention is further provided with: the heat dissipation cavity between the support and the stator core is at least partially overlapped with the stator winding in height.
Through adopting above-mentioned technical scheme, compare in the condition that the heat dissipation chamber between support and the stator core only takes place the interface contact with stator winding, the heat dissipation chamber between support and the stator core overlaps with stator winding in the height for stator winding is in the heat dissipation chamber between support and the stator core, thereby increases the contact of air and stator winding in the heat dissipation chamber between support and the stator core, promotes the holistic radiating effect of motor.
The invention is further provided with: and the heat dissipation cavity inlet and/or the heat dissipation cavity outlet positioned on the side wall of the motor are/is at least partially overlapped with the stator winding in the circumferential direction.
By adopting the technical scheme, when the inlet of the heat dissipation cavity is positioned on the side wall of the motor and partially overlapped with the stator winding in the circumferential direction, air is necessarily in direct contact with the stator winding when entering from the inlet of the heat dissipation cavity, so that the heat dissipation effect on the stator winding is enhanced. Similarly, when the heat dissipation cavity inlet is positioned on the side wall of the motor and partially coincides with the stator winding in the circumferential direction, air is necessarily in direct contact with the stator winding when leaving from the heat dissipation cavity outlet, so that the heat dissipation effect on the stator winding is enhanced.
The invention is further provided with: the heat dissipation cavity comprises a heat dissipation cavity inlet for air to enter the heat dissipation cavity and a heat dissipation cavity outlet for air to leave the heat dissipation cavity, and at least one of the heat dissipation cavity inlet and the heat dissipation cavity outlet is formed between the support and the stator core.
Through adopting above-mentioned technical scheme, utilize support and stator core to form heat dissipation chamber import and/or heat dissipation chamber export to need not to increase extra spare part, reduce the assembly degree of difficulty and motor weight.
The invention is further provided with: and the heat dissipation cavity inlet and the heat dissipation cavity outlet are respectively positioned above and below the stator core.
The invention is further provided with: the heat dissipation cavity comprises an inlet section communicated with the inlet of the heat dissipation cavity, an outlet section communicated with the outlet of the heat dissipation cavity and a communication section communicated with the inlet section and the outlet section, and the communication section axially flows through the stator winding.
Through adopting above-mentioned technical scheme, not only the heat dissipation chamber extends along radial in order to guide the air along radial flow through stator winding, realize that the air carries out abundant contact with the radial heat that produces of stator winding, thereby can play good carry-over effect, make stator winding have good heat dispersion in the axial, the setting of intercommunication section makes the heat dissipation chamber also can guide the air along axial flow through stator winding, realize that the air carries out abundant contact with the radial heat that produces of stator winding, thereby can play good carry-over effect, make stator winding have good heat dispersion in the axial, thereby promote the heat dissipation chamber effect of motor comprehensively.
The invention is further provided with: and the heat dissipation cavity inlet and the heat dissipation cavity outlet are both positioned above or below the stator core.
By adopting the technical scheme, if the radiating cavity inlet and the radiating cavity outlet are respectively positioned above and below the stator core, the air in the radiating cavity is inevitably transformed in the flowing process. At this time, the resistance of the air during the flow is large. And the heat dissipation cavity inlet and the heat dissipation cavity outlet are both positioned above or below the stator core, so that the conversion degree of the air in the heat dissipation cavity in the direction in the flowing process is smaller. At this time, the resistance of the air during the flow is small.
The invention is further provided with: the included angle between the connecting line of the inlet of the heat dissipation cavity and the motor shaft and the connecting line of the outlet of the heat dissipation cavity and the motor shaft is alpha, and alpha is more than or equal to 90 degrees and less than or equal to 180 degrees.
By adopting the technical scheme, compared with alpha being smaller than 90 degrees, alpha being larger than or equal to 90 degrees and alpha being smaller than or equal to 180 degrees, the conversion degree of the air in the heat dissipation cavity in the direction of the flowing process is smaller, and the resistance of the air is reduced.
The invention is further provided with: the motor also comprises a fan sleeved on the motor shaft, and the fan is positioned in the heat dissipation cavity.
The invention is further provided with: the fan is located in the height range of the bracket and the stator core.
By arranging the fan, air is pushed to flow in the heat dissipation cavity. Further, the total height of the fan and the bracket is smaller than the self height, so that the height of the motor is reduced, the center of gravity of the food processor is reduced, and noise is reduced.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of a frame in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a motor in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a rotor core in embodiment 1 of the present invention;
FIG. 5 is a schematic view showing the structure of the upper end plate in embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a stator core in embodiment 1 of the present invention;
FIG. 7 is a sectional view showing the front view of the upper bracket in embodiment 1 of the present invention;
fig. 8 is a schematic top view of the upper bracket in embodiment 1 of the present invention;
FIG. 9 is a cross-sectional view of the lower bracket of embodiment 1 of the present invention in the front view;
fig. 10 is a schematic view illustrating the structure of the lower bracket in the bottom view of embodiment 1 of the present invention;
FIG. 11 is a cross-sectional view of the front view of the fan in embodiment 1 of the present invention;
FIG. 12 is a top view of a fan according to embodiment 1 of the present invention;
FIG. 13 is a sectional view of the motor shaft provided with the drain hole in embodiment 1 of the present invention in the front view direction;
FIG. 14 is a top view of a motor shaft provided with drain holes in embodiment 1 of the present invention;
fig. 15 is a schematic view showing the structure of the upper end plate provided with the groove in embodiment 1 of the present invention;
fig. 16 is a schematic structural view of a fan-provided groove in embodiment 1 of the present invention;
fig. 17 is a schematic diagram of the structure of the motor in embodiment 2 of the present invention.
Reference numerals: 1. a base; 2. a stirring cup; 3. a motor; 4. a housing; 5. a motor shaft; 6. a rotor; 7. a stator; 8. an upper bracket; 9. a lower bracket; 10. a heat dissipation cavity; 11. a heat dissipation cavity inlet; 12. a heat dissipation cavity outlet; 13. a main body; 14. a base; 15. a top wall; 16. a front sidewall; 17. a rear sidewall; 18. a left side wall; 19. a right side wall; 20. an air inlet; 21. an air inlet channel; 22. an air outlet; 23. an air outlet channel; 24. a lower connector; 25. a flat position; 26. a rotor core; 27. a magnetic shoe; 28. a rotor shaft hole; 29. an arc surface; 30. a mounting groove; 31. a magnetism isolating groove; 32. a magnetism isolating hole; 33. a duplicate removal hole; 34. an upper end plate; 35. an upper shaft hole; 36. an upper annular sinking platform; 37. a lower annular sinking platform; 38. a step is arranged; 39. descending a step; 40. positioning columns; 41. a stator core; 42. a winding frame is arranged; 43. a lower winding frame; 44. a stator winding; 45. stator tooth parts; 46. a stator yoke; 47. stator tooth shoes; 48. a main body portion; 49. stator tooth slots; 50. positioning holes; 51. a positioning groove; 52. an upper cover plate; 53. an upper connecting plate; 54. positioning the boss; 55. an upper bearing; 56. an upper annular boss; 57. an upper mounting hole; 58. an upper relief hole; 59. an upper horizontal portion; 60. upper positioning surrounding ribs; 61. a sinking platform; 62. a wire outlet hole; 63. a skeleton; 64. a glue coating layer; 65. a lower cover plate; 66. a lower connecting plate; 67. a support column; 68. a lower bearing; 69. a lower annular boss; 70. a lower mounting hole; 71. a lower avoidance hole; 72. a lower horizontal portion; 73. lower positioning surrounding ribs; 74. a lower limit surrounding rib; 75. a sinking platform; 76. an inlet section; 77. an outlet section; 78. a communication section; 79. a fan; 80. a lower end plate; 81. an annular plate; 82. a receiving groove; 83. a substrate; 84. a fan blade; 85. a drain hole; 86. a groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1 and 2, a flattening motor includes a housing 1 and a stirring cup 2 mounted to the housing 1. The housing 1 comprises a motor 3 and a casing 4. The motor 3 includes a motor shaft 5, a rotor 6 surrounding the motor shaft 5, a stator 7 surrounding the rotor 6, an upper bracket 8 located above the stator 7, and a lower bracket 9 located below the stator 7. The upper bracket 8 forms an upper end face of the motor 3, and the lower bracket 9 forms a lower end face of the motor 3. A heat dissipation chamber 10 for air to flow through for dissipating heat of the motor 3 is formed inside the motor 3. The heat sink 10 comprises a heat sink inlet 11 for air entering the heat sink 10 and a heat sink outlet 12 for air leaving the heat sink 10. The casing 4 includes a main body 13 and a base 14. The main body 13 includes a top wall 15, a front side wall 16, a rear side wall 17, a left side wall 18, and a right side wall 19. The top wall 15 of the main body 13 serves as the upper end of the housing 4, and the base 14 serves as the lower end of the housing 4. The base 14 is upwardly protruded to form a step near the left and right side walls 18 and 19 and is provided with an air inlet 20 at the step. The intake vent 20 is located at an end of the base 14 adjacent the front side wall 16. The main body 13 and the base 14 enclose an air inlet channel 21, and two ends of the air inlet channel 21 are respectively communicated with the air inlet 20 and the heat dissipation cavity inlet 11. The rear side wall 17 is provided with an air outlet 22, and an air outlet channel 23 with two ends respectively communicated with the air outlet 22 and the heat dissipation cavity outlet 12 is arranged in the casing 4. The air inlet 20, the air inlet channel 21, the heat dissipation cavity 10, the air outlet channel 23 and the air outlet 22 form a complete air channel.
Referring to fig. 3, the upper end of the motor shaft 5 passes through the center of the upper bracket 8 in the axial direction. The upper end face of the motor shaft 5 is provided with screw holes, and a lower connector 24 is fixedly connected through screw and screw hole matching. The part of the outer side surface of the motor shaft 5 passing through the upper bracket 8 is provided with a flat position 25, so that the circumferential limit of the lower connector 24 and the motor shaft 5 is realized.
Referring to fig. 3 and 4, rotor 6 includes a rotor core 26 and magnetic shoes 27. The center of the rotor core 26 is provided with a rotor shaft hole 28 for the motor shaft 5 to pass through, and the side wall of the rotor core 26 includes n identical arcuate surfaces 29. The opposite arcuate surfaces 29 are centrally symmetrical about the rotor core 26. The curvature of the concentric circle of the rotor shaft hole 28 at the center of each arcuate surface 29 is smaller than the curvature of each arcuate surface 29. The rotor core 26 is provided with n mounting grooves 30 penetrating the rotor core 26 along the motor shaft 5, and the magnetic shoes 27 are mounted in the mounting grooves 30. The mounting slot 30 may be rectangular or arcuate depending on the shape of the magnetic shoe 27. The two ends of each mounting groove 30 are respectively adjacent to the two ends of the corresponding arc-shaped surface 29. Therefore, the end portions of the adjacent two mounting grooves 30 are also close to each other, and all of the mounting grooves 30 are formed approximately in a polygonal shape or a circular shape around the rotor shaft hole 28. Each mounting groove 30 corresponds to a central angle β, nβ=360°. Preferably, n=6, then β=60°. The rotor core 26 is provided with 2n magnetic isolation grooves 31 penetrating the rotor core 26 along the motor shaft 5. The magnetism isolating grooves 31 are distributed at both ends of the installation groove 30 and communicate with the installation groove 30. The shape of the magnetism isolating groove 31 is not limited, and may be rectangular, crescent, or the like. The rotor core 26 is provided with 2n magnetic shield holes 32 penetrating the rotor core 26 along the motor shaft 5. The shape of the magnetism isolating hole 32 may be circular or elliptical. The magnetism blocking hole 32 is located between the mounting groove 30 and the edge of the rotor core 26 near the end of the mounting groove 30. The rotor core 26 is provided with n weight removing holes 33, and each weight removing hole 33 is located between the rotor shaft hole 28 and the corresponding mounting groove 30. The shape of the duplicate removal aperture 33 may be circular, elliptical, or polygonal.
Referring to fig. 3 and 5, upper end plate 34 is covered above rotor core 26. The upper end plate 34 is provided with an upper shaft hole 35 for the motor shaft 5 to pass through, and upper and lower surfaces of the upper end plate 34 are provided with an upper annular sinking table 36 and a lower annular sinking table 37, respectively, surrounding the upper shaft hole 35. The upper surface of the upper end plate 34 forms an upper step 38 on the outer side in the radial direction of the upper annular countersink 36, and the lower surface of the upper end plate 34 forms a lower step 39 on the outer side in the radial direction of the lower annular countersink 37. At the time of dynamic balance correction of the motor 3, automatic correction can be achieved by subtracting the weight of the upper step 38. The lower surface of the upper end plate 34 is provided with a positioning post 40, and the positioning post 40 can be inserted into the weight removing hole 33 of the rotor core 26, thereby realizing circumferential anti-rotation of the rotor core 26 and the positioning post 40. The upper end plate 34 may be made of plastic, aluminum alloy, zinc alloy, copper, etc. Preferably, the upper end plate 34 is a dense and low cost zinc alloy.
Referring to fig. 3 and 6, the stator 7 includes a stator core 41, an upper bobbin 42 located above the stator core 41, a lower bobbin 43 located below the stator core 41, and at least three stator windings 44 distributed around the rotor 6. The stator core 41 includes a stator tooth 45 and a stator yoke 46 surrounding the stator tooth 45. The stator tooth 45 includes a stator tooth shoe 47 and a main body 13 integrally connecting the stator tooth shoe 47 and the stator tooth 45. Stator yoke 46 and adjacent two stator teeth 45 enclose a stator slot 49 therebetween. The stator yoke 46 is provided with a plurality of positioning holes 50 penetrating the stator yoke 46 in the axial direction and used for screws to pass through, the positioning holes 50 are positioned at the joint of the stator yoke 46 and the main body 13, and the circle center of the positioning holes 50 is positioned on the intersection point of the bisector of the width of the stator yoke 46 and the bisector of the width of the main body 13, so that uneven magnetic flux density passing through the stator tooth 45 and the stator yoke 46 due to the arrangement of the positioning holes 50 is avoided. The edge of the stator yoke 46 is provided with a plurality of positioning grooves 51 penetrating the stator yoke 46 in the axial direction. The upper bobbin 42 and the lower bobbin 43 are fixed to the stator core 41 by clamping. The stator winding 44 is wound on the upper and lower bobbins 42 and 43. The upper end surface of the stator winding 44 is lower than the upper end surface of the upper bobbin 42, and the lower end surface of the stator winding 44 is higher than the lower end surface of the lower bobbin 43.
Referring to fig. 3, 7 and 8, the upper bracket 8 includes an upper cover plate 52 and an upper connection plate 53. The upper connecting plate 53 is located below the upper cover plate 52, and a plurality of positioning bosses 54 are uniformly distributed along the circumferential direction on the edge of the upper cover plate 52. At this time, through holes are formed between the adjacent two positioning bosses 54, the upper cover plate 52, and the upper connection plate 53. An upper bearing 55 is sleeved on the upper end of the motor shaft 5, the upper cover plate 52 is provided with an upper annular boss 56 extending towards the stator 7, and the upper annular boss 56 is formed with an upper mounting hole 57 for mounting the upper bearing 55. The upper cover plate 52 is provided with an upper escape hole 58 communicating with and coaxial with the upper mounting hole 57. The upper end of the motor shaft 5 passes through the upper bearing 55 and the upper escape hole 58 in this order. The lower end face of the positioning boss 54 is provided with screw holes. The upper connection plate 53 includes an upper horizontal portion 59, and an upper positioning bead 60 connected to an outer end of the upper horizontal portion 59 in a radial direction. The upper positioning enclosing rib 60 extends downwards, and the upper positioning enclosing rib 60 and the upper horizontal portion 59 enclose an upper sinking platform 61. One of the positioning bosses 54 is provided with a wire outlet hole 62 penetrating the positioning boss 54 in the radial direction. The upper support 8 may be of metal or plastic but is preferably encapsulated by metal. The framework 63 of the upper bracket 8 is made of metal, and the encapsulation layer 64 is made of plastic or silica gel. The glue layer 64 forms the upper surface of the upper support 8.
Referring to fig. 3, 9 and 10, the lower bracket 9 includes a lower cover plate 65 and a lower connection plate 66. The lower connecting plate 66 is located lower apron 65 top, and the border of lower apron 65 has many spinal branchs post 67 along circumference evenly distributed, and the one end that many spinal branchs post 67 kept away from lower apron 65 is connected with lower connecting plate 66. Through holes are formed between the adjacent two support columns 67, the lower connecting plate 66 and the lower cover plate 65. The lower end of the motor shaft 5 is sleeved with a lower bearing 68, the lower cover plate 65 is provided with a lower annular boss 69 extending towards the stator 7, and the lower annular boss 69 is formed with a lower mounting hole 70 for mounting the lower bearing 68. The lower cover plate 65 is provided with a lower escape hole 71 communicating with and coaxial with the lower mounting hole 70. The lower end of the motor shaft 5 passes through the lower bearing 68 and then extends into the lower escape hole 71. The support column 67 is provided with a screw hole, and the screw passes through the screw hole of the support column 67 and the positioning hole 50 of the stator yoke 46 in sequence and then is connected with the screw hole of the positioning column 40 in a threaded manner, so that the motor 3 is fixed. The lower connecting plate 66 includes a lower horizontal portion 72, a lower positioning fence 73 connected to an outer end in the radial direction of the lower horizontal portion 72, and a lower limiting fence 74 connected to an inner end in the radial direction of the lower horizontal portion 72. The lower positioning surrounding rib 73 extends upward, and the lower limiting surrounding rib 74 extends downward. The lower positioning surrounding rib 73 and the lower horizontal portion 72 enclose a sinking platform 75. The upper surface of the stator yoke 46 is in contact with the sinking table 61, and the lower surface of the stator yoke 46 is in contact with the sinking table 75. The upper cover plate 52 and the lower cover plate 65 completely cover the rotor 6 and the stator 7 in the radial direction.
A heat dissipation chamber inlet 11 is formed between the stator yoke 46 and the upper cover plate 52, and a heat dissipation chamber outlet 12 is formed between the stator yoke 46 and the lower cover plate 65. At this time, the heat dissipation chamber inlet 11 is located above the stator core 41, and the heat dissipation chamber outlet 12 is located below the stator core 41. The heat dissipation chamber inlet 11 and the stator winding 44 are partially overlapped in height and partially overlapped in circumferential direction.
An inlet section 76 communicating with the heat dissipation chamber inlet 11 is formed between the upper cover plate 52 and the stator tooth 45, and an outlet section 77 communicating with the heat dissipation chamber outlet 12 is formed between the lower cover plate 65 and the stator tooth 45. At this time, the inlet section 76 partially coincides with the stator winding 44 both in height and in circumferential direction. Stator tooth slots 49 form a communication section 78 that communicates inlet section 76 with outlet section 77. The heat dissipation chamber inlet 11, the inlet section 76, the communication section 78, the outlet section 77, and the heat dissipation chamber outlet 12 constitute the complete heat dissipation chamber 10. Wherein the inlet section 76 extends radially to direct air radially through the stator windings 44. The communication section 78 flows through the stator winding 44 in the axial direction.
The height difference between the air inlet 20 and the heat dissipation cavity inlet 11 is Z1, and the distance between the projections of the air inlet 20 on the horizontal direction and the projections of the heat dissipation cavity inlet 11 on the horizontal direction is X1, wherein Z1 is less than X1. The difference in height between the air outlet 22 and the heat dissipation chamber outlet 12 is Z2, and the distance between the projections of the air outlet 22 in the horizontal direction and the projections of the heat dissipation chamber outlet 12 in the horizontal direction is X2, Z2 < X2.
Assuming that the length of each coil circumferential extension is S and the length of the axial extension is T, the stator winding 44 of the existing motor 3 is named first coil for convenience of description. The two coils are respectively provided with a circumferential extension section with the length of S/2 and an axial extension section with the length of T, and the two coils are named as second coils. At this time, the total length of the two second coil circumferential extension sections is the same as that of the first coil, and the ratio of the axial extension section of each second coil is higher than that of the first coil, which is equivalent to the second coil, so that the rotation speed of the motor 3 is easier to be increased. Therefore, when the axial extension length of the second coil is changed to T/2, the second coil and the first coil have the same ratio of the axial extension, and the total length of the two second coils and the first coil is the same for the same rotation speed of the motor 3. However, in this case, the axial extension of the second coil is half the length of the first coil. At this time, the height of the stator 7 is reduced, and the height of the motor 3 is also reduced. Thus, there are only two stator windings 44 of the existing motor 3, whereas the stator windings 44 of the present application are provided with at least three. Therefore, in the case where the total length of the coil is unchanged, this means a decrease in the height of the motor 3.
From the standpoint of heat generation, the number of stator windings 44 increases, resulting in a shortened axial extension of the individual stator windings 44, and therefore the heat generated by the individual stator windings 44 in the axial direction decreases, but the individual stator windings 44 are formed by stacking a plurality of coils in the radial direction. With the overall coil length unchanged, the width of the individual stator windings 44 in the radial direction is unchanged. Thus, the heat generated by the individual stator windings 44 in the radial direction is unchanged. In the case where the heat generated in the axial direction of the single stator winding 44 is decreased and the heat generated in the radial direction is not changed, the heat generated in the radial direction of the single stator winding 44 is increased in proportion.
The support is located above the stator 7 and/or below the stator 7, so that the support and the stator 7 are displaced in the height direction. Therefore, the portion of the heat dissipation chamber 10 formed between the bracket and the stator core 41 is also located below and/or above the bracket, being displaced in the height direction from the bracket. The heat dissipation cavity 10 staggered in height with the support extends along the radial direction and guides air to flow through the stator winding 44 along the radial direction, and the heat generated by the stator winding 44 along the radial direction is fully contacted, so that a good carrying effect can be achieved, and the stator winding 44 has good heat dissipation performance along the radial direction. When the number of the stator windings 44 is increased, the height of the motor 3 is reduced, and the heat generated by the single stator winding 44 in the radial direction is increased, only when the heat dissipation cavity 10 staggered in height with the support extends in the radial direction and simultaneously guides air to flow through the stator winding 44 in the radial direction, the whole heat dissipation effect of the motor 3 can be ensured.
The heat dissipation cavities 10 of the existing motor 3 extend along the axial direction, and at the moment, heat generated in the axial direction of the stator winding 44 is fully contacted, so that a good carrying effect can be achieved, and the heat dissipation performance of the stator winding 44 in the axial direction is improved. However, the heat generated in the radial direction of the motor 3 is insufficient in contact, and thus it is difficult to perform a good carrying function, and it is naturally difficult to improve the heat radiation performance in the radial direction of the stator winding 44. In the case that the number of the stator windings 44 is increased, the height of the motor 3 is reduced, and the heat generated by the radial direction of the single stator winding 44 is increased, the heat dissipation cavity 10 of the existing motor 3 extends along the axial direction, and it is naturally difficult to ensure the overall heat dissipation effect of the motor 3.
In this application, under the holistic radiating effect of motor 3 guaranteed the circumstances, motor 3 highly can reduce for the focus of food processor can reduce, noise abatement produces.
Compared with the situation that the heat dissipation cavity 10 between the bracket and the stator core 41 is only in interfacial contact with the stator winding 44, the heat dissipation cavity 10 between the bracket and the stator core 41 is overlapped with the stator winding 44 in height, so that the stator winding 44 is positioned in the heat dissipation cavity 10 between the bracket and the stator core 41, the contact between air in the heat dissipation cavity 10 between the bracket and the stator core 41 and the stator winding 44 is increased, and the overall heat dissipation effect of the motor 3 is improved.
When the heat dissipation chamber inlet 11 is located at the side wall of the motor 3 and partially coincides with the stator winding 44 in the circumferential direction, air must be in direct contact with the stator winding 44 when entering from the heat dissipation chamber inlet 11, thereby enhancing the heat dissipation effect to the stator winding 44. Similarly, when the heat dissipation chamber inlet 11 is located at the side wall of the motor 3 and partially overlaps the stator winding 44 in the circumferential direction, the air must be in direct contact with the stator winding 44 when it exits from the heat dissipation chamber outlet 12, thereby enhancing the heat dissipation effect to the stator winding 44.
Not only the heat dissipation cavity 10 extends along the radial direction to guide air to flow through the stator winding 44 along the radial direction, so that the air is fully contacted with heat generated by the stator winding 44 in the radial direction, and thus good carrying effect can be achieved, the stator winding 44 has good heat dissipation performance in the axial direction, but also the heat dissipation cavity 10 can guide air to flow through the stator winding 44 along the axial direction, so that the air is fully contacted with heat generated by the stator winding 44 in the radial direction, and thus good carrying effect can be achieved, the stator winding 44 has good heat dissipation performance in the axial direction, and thus the effect of the heat dissipation cavity 10 of the motor 3 is comprehensively improved.
Air enters or exits the heat dissipation chamber 10 from above and/or below the rack such that air flows in the heat dissipation chamber 10 in a lateral direction. And air flows from the air inlet 20 to the heat dissipation cavity inlet 11 to form an air inlet section of the air channel, and air flows from the heat dissipation cavity outlet 12 to the air outlet 22 to form an air outlet section of the air channel. Z1 is less than X1, and air in the air inlet section flows along the transverse direction. Z2 is less than X2, and air in the air outlet section flows along the transverse direction. The air in the heat dissipation cavity 10 flows along the transverse direction, and the air in the air inlet section and the air outlet section also flows along the transverse direction, so that the air duct is in a transverse flow state as a whole. Compared with the air duct in a longitudinal flow state, the air duct is in a transverse flow state, and the height of the machine base 1 can be reduced, so that the center of the food processor is reduced, and noise is reduced.
Referring to fig. 3, 11 and 12, the motor shaft 5 is sleeved with a fan 79 located in a height range of the stator core 41 and the lower cover plate 65, the fan 79 including a lower end plate 80 and an annular plate 81, the annular plate 81 being connected to an edge of the lower end plate 80. A receiving groove 82 for receiving the lower annular boss 69 is formed between the lower end plate 80 and the annular plate 81. At this time, the lower annular boss 69 and the accommodating groove 82 overlap in the height direction, and the height at which the lower annular boss 69 and the accommodating groove 82 overlap in the height direction is h1, and the height of the accommodating groove 82 is h2, h1/h2=0.5 to 0.8:1. Preferably, h1/h2=0.7:1. The radial width of the lower annular boss 69 is r1, and the radial width of the receiving groove 82 is r2, with r 1/r2=0.5-0.8:1. Preferably, r 1/r2=0.8:1. The outer diameter of lower end plate 80 is r3, and the outer diameter of rotor core 26 is r4, with r3 being equal to or less than r4. The lower end plate 80 abuts the magnetic shoe 27 on the side outside the accommodation groove 82 to position the magnetic shoe 27. One end of the annular plate 81, which is far away from the lower end plate 80, is connected with a base plate 83, and the upper surface of the base plate 83 is provided with fan blades 84. The outer diameter of the base plate 83 is R, the inner diameter of the stator 7 is R1, the outer diameter of the stator 7 is R2, and R1 < R2. The difference in height between the lower end of the base plate 83 and the lower cover plate 65 is H1, the difference in height between the upper end of the fan blade 84 and the lower cover plate 65 is H2, and the difference in height between the lower end of the stator winding 44 and the lower cover plate 65 is H3, H1 < H2 < H3.
In the existing motor 3, the fan 79 is located below the annular boss and is staggered in height with the annular boss, so that the total height of the fan 79 and the annular boss is the sum of the height of the fan 79 itself, the height difference between the fan 79 and the annular boss, and the height of the annular boss itself. In this application, the annular boss is caught in the receiving groove 82 so that the fan 79 and the annular boss are partially overlapped in the height direction, and thus the total height of the fan 79 and the annular boss is smaller than the total height of the fan 79 itself and the annular boss itself, which is naturally smaller than the total height of the fan 79 and the annular boss of the existing motor 3. Therefore, the height of the motor 3 is reduced, so that the center of gravity of the food processor is lowered, and the generation of noise is reduced.
h1/h2 is too large, which means that the height of the overlapping part of the annular boss and the accommodating groove 82 in the height direction is too large, and at this time, the distance between the lower surface of the lower end plate 80 and the upper end surface of the annular boss is too close, so that the fan 79 is easy to interfere with the annular boss in the high-speed rotation process, and the normal operation of the fan 79 is affected. h1/h2 is too small, which means that the height of the overlapping part of the annular boss and the accommodating groove 82 in the height direction is too small, so that the total height of the annular boss and the accommodating groove 82 is larger, the height of the motor 3 is not reduced, the center of gravity of the food processor is higher, and the noise is increased. h1/h2=0.5-0.8:1, not only can avoid the fan 79 from easily interfering with the annular boss in the high-speed rotation process, but also can reduce the height of the motor 3 as much as possible, so that the gravity center of the food processor is reduced, and the noise is reduced.
r1/r2 is too large, which means that the width of the overlapping part of the annular boss and the accommodating groove 82 in the radial direction is too large, and the radial distance between the annular plate 81 and the annular boss is too short, so that the fan 79 is easy to interfere with the annular boss in the high-speed rotation process, and the normal operation of the fan 79 is affected. Too small r1/r2 means that the receiving groove 82 is too large in radial width, but the fan 79 is located between the bracket and the stator 7, so that the radial width of the fan 79 is also limited, and thus the receiving groove 82 cannot be too large. Therefore, in the case where the radial width of the fan 79 is limited by the bracket and the stator 7, r1/r2 is reduced as much as possible, so that it is possible to avoid the fan 79 from easily interfering with the annular boss during high-speed rotation.
It will be appreciated that referring to fig. 13 and 14, the upper end surface of the motor shaft 5 is not provided with screw holes, but is provided with drain holes 85 penetrating the motor shaft 5 in the axial direction, and the drain holes 85 may be non-circular, such as triangular, quadrangular, pentagonal, etc., or circular. However, when the drain hole 85 is non-circular, the crushing cutter shaft of the stirring cup 2 can be directly inserted into the drain hole 85, so that the circumferential limit of the crushing cutter shaft and the motor shaft 5 is realized, and the motor shaft 5 can drive the crushing cutter to rotate. Of course, screw holes may be partially provided, and drain holes 85 communicating with the screw holes may be partially provided.
It will be appreciated that with reference to fig. 15, the upper step 38 is provided with a groove 86 in the circumferential direction for receiving the balancing mud. The dynamic balance of the motor 3 is corrected by adding balance mud into the groove 86 of the upward step 38.
As will be appreciated, with reference to fig. 16, the lower surface of the base plate 83 is provided with a groove 86 for accommodating the balance mud along the circumferential direction. The dynamic balance of the motor 3 is corrected by adding balance mud into the groove 86 of the base plate 83.
It will be appreciated that the end of the annular plate 81 remote from the end plate is no longer connected to the base plate 83, and accordingly, the blades 84 are evenly distributed along the circumference of the side of the annular plate 81 outside the receiving groove 82. The end face of the lower bracket 9 is provided with a plurality of heat dissipation holes serving as heat dissipation cavity outlets 12.
Example 2
Embodiment 2 differs from embodiment 1 in that the position of the fan 79 is different and the structure of the heat dissipation chamber 10 is different.
Referring to fig. 17, in embodiment 2, the fan 79 is no longer disposed within the height range of the stator core 41 and the lower cover plate 65. But is located on the side of the motor 3. At this time, the heat dissipation chamber outlet 12 is formed between the stator yoke 46 and the upper cover plate 52 near the fan 79, and the heat dissipation chamber outlet 12 is also formed between the stator yoke 46 and the lower cover plate 65 near the fan 79. And a heat dissipation chamber inlet 11 is formed between the stator yoke 46 and the upper cover plate 52, which are remote from the fan 79, and a heat dissipation chamber outlet 12 is formed between the stator yoke 46 and the lower cover plate 65, which are remote from the fan 79. At this time, the heat dissipation chamber inlet 11 and the heat dissipation chamber outlet 12 are both located above the stator core 41 and also below the stator core 41.
At this time, the included angle between the connection line of the heat dissipation cavity inlet 11 and the motor shaft 5 and the connection line of the heat dissipation cavity outlet 12 and the motor shaft 5 is alpha, and alpha is more than or equal to 90 degrees and less than or equal to 180 degrees. When only the through hole closest to the fan 79 and the through hole farthest from the fan 79 remain, α=180°. When only the through hole closest to the fan 79 and the through hole having a central angle of 90 ° with respect to the through hole closest to the fan 79 remain, α=90°.
The present embodiment is merely illustrative of the present invention and is not intended to be limiting, and modifications thereof without creative contribution can be made by those skilled in the art after reading the present specification, as long as they are protected by patent laws within the scope of claims of the present invention.
Claims (10)
1. The utility model provides a flattening motor, the motor includes the motor shaft, wraps up the rotor of motor shaft, wraps up the stator of rotor and forms the support of motor axial terminal surface, the support is located stator top and/or stator below, the inside heat dissipation chamber that forms of motor, its characterized in that, the stator includes stator core and at least three stator winding that encircles the rotor and distribute, form at least partial heat dissipation chamber between support and the stator core, the heat dissipation chamber that is located between support and the stator core extends along radial and guide air flow through the stator winding along radial, the support covers completely in radial rotor and stator, the heat dissipation chamber is including the heat dissipation chamber import that is used for the air to get into the heat dissipation chamber and the heat dissipation chamber export that is used for the air to leave the heat dissipation chamber, heat dissipation chamber import and heat dissipation chamber export are located the motor lateral wall.
2. The flattened motor of claim 1 wherein the heat dissipation chamber between the support and the stator core is at least partially coincident in height with the stator winding.
3. A flattened motor as recited in claim 1 wherein the heat sink inlet and/or heat sink outlet at the motor sidewall at least partially coincides with the stator winding in the circumferential direction.
4. The flattened motor of claim 1, wherein the heat dissipation chamber includes a heat dissipation chamber inlet for air to enter the heat dissipation chamber and a heat dissipation chamber outlet for air to leave the heat dissipation chamber, at least one of the heat dissipation chamber inlet and the heat dissipation chamber outlet being formed between the bracket and the stator core.
5. The flattened motor of claim 4 wherein the heat sink inlet and the heat sink outlet are positioned above and below the stator core, respectively.
6. The flattened motor of claim 5, wherein the heat dissipation chamber comprises an inlet section in communication with an inlet of the heat dissipation chamber, an outlet section in communication with an outlet of the heat dissipation chamber, and a communication section in communication with the inlet section and the outlet section, the communication section flowing through the stator winding in an axial direction.
7. The flattened motor of claim 1 wherein the heat sink inlet and the heat sink outlet are both above or below the stator core.
8. The flattened motor of claim 1 further comprising a fan coupled to the motor shaft, the fan being positioned within the heat dissipation chamber.
9. The flattened motor of claim 8 wherein the fan is located within a height of the bracket and the stator core.
10. The flattened motor of claim 8 wherein the included angle between the heat dissipation chamber inlet and motor shaft connection and the heat dissipation chamber outlet and motor shaft connection is α,90 ° or less α or less than 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311769715.9A CN117856514A (en) | 2021-02-06 | 2021-02-06 | Flattening motor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110173563.0A CN114903356B (en) | 2021-02-06 | 2021-02-06 | Flattened food processor |
| CN202311769715.9A CN117856514A (en) | 2021-02-06 | 2021-02-06 | Flattening motor |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110173563.0A Division CN114903356B (en) | 2021-02-06 | 2021-02-06 | Flattened food processor |
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| CN117856514A true CN117856514A (en) | 2024-04-09 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311769715.9A Pending CN117856514A (en) | 2021-02-06 | 2021-02-06 | Flattening motor |
| CN202110173563.0A Active CN114903356B (en) | 2021-02-06 | 2021-02-06 | Flattened food processor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110173563.0A Active CN114903356B (en) | 2021-02-06 | 2021-02-06 | Flattened food processor |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674056U (en) * | 1993-03-23 | 1994-10-18 | 株式会社富士通ゼネラル | Outer rotor type induction motor |
| WO2013054811A1 (en) * | 2011-10-13 | 2013-04-18 | 三菱電機株式会社 | Dynamo-electric machine |
| JP6503329B2 (en) * | 2016-11-18 | 2019-04-17 | 東芝三菱電機産業システム株式会社 | Electric rotating machine and stator cooling structure |
| CN210273630U (en) * | 2019-08-29 | 2020-04-07 | 广州视源电子科技股份有限公司 | Permanent magnet motor with heat radiation structure |
| CN211432508U (en) * | 2019-10-12 | 2020-09-08 | 九阳股份有限公司 | Mute food processing machine |
| CN212435496U (en) * | 2020-08-11 | 2021-01-29 | 宁波科升磁业有限公司 | Ceiling fan motor |
-
2021
- 2021-02-06 CN CN202311769715.9A patent/CN117856514A/en active Pending
- 2021-02-06 CN CN202110173563.0A patent/CN114903356B/en active Active
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| CN114903356A (en) | 2022-08-16 |
| CN114903356B (en) | 2024-01-09 |
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