CN117498605B - High-precision mute brushless motor and chef machine - Google Patents
High-precision mute brushless motor and chef machine Download PDFInfo
- Publication number
- CN117498605B CN117498605B CN202410005758.8A CN202410005758A CN117498605B CN 117498605 B CN117498605 B CN 117498605B CN 202410005758 A CN202410005758 A CN 202410005758A CN 117498605 B CN117498605 B CN 117498605B
- Authority
- CN
- China
- Prior art keywords
- cavity
- hollow rotor
- speed reducer
- shaft
- communicated
- 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.)
- Active
Links
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 36
- 238000004804 winding Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims abstract description 27
- 238000010992 reflux Methods 0.000 claims abstract description 19
- 230000030279 gene silencing Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 5
- 238000009835 boiling Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 34
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a high-precision mute brushless motor and a chef machine, which belong to the technical field of cooling working medium closed-circuit circulation motors and comprise a shell, a heat dissipation sleeve, a stator winding, a hollow rotor and a backflow component. The tail end of the shell is provided with an end cover, the head end of the shell is provided with a speed reducer, and a plurality of stator windings are uniformly arranged in the shell along the circumferential direction. The outside of heat dissipation sleeve links to each other with the casing, specifically, the heat dissipation sleeve outside forms the cavity with the casing to be full of transformer oil, the stator winding is immersed in transformer oil completely, and utilizes the high boiling point that transformer oil has, high specific heat capacity and high viscosity's characteristic, reduce the vibration that stator winding produced in order to reduce the noise, and the coaxial transmission of the power take off end of reduction gear is connected, make the reduction gear can also drive the reflux member rotatory when outwards outputting torque from this, thereby promote transformer oil flow, thereby absorb and transfer the heat that stator winding sent, ensure long-life operation of motor.
Description
Technical Field
The invention relates to the technical field of cooling working medium closed-circuit circulation motors, in particular to a high-precision mute brushless motor and a chef machine.
Background
The rotor of the Brushless motor is permanent magnet steel, the stator is a winding coil, and compared with a brush motor, a reversing brush used for forming an alternating electromagnetic field is omitted, so that the Brushless motor is called a Brushless motor (Brushless motor), and on the basis, the Brushless motor operates on the principle that a rotating magnetic field is formed in a machine shell by supplying three-phase electricity to the stator winding, and the rotor is pushed to move.
Although the brushless motor can reduce noise due to the elimination of the carbon brush, meanwhile, the stator winding is subjected to the action of high-frequency current, and silicon steel sheets forming the stator winding can vibrate between the joint of the silicon steel sheets and the lamination sheets due to magnetic leakage, so that noise is generated. On the other hand, under the condition of high power load of the motor, a large amount of heat is generated on the stator winding, and in order to avoid burning the coil by the heat, a cooling system, such as a fan or a hydraulic pump, needs to be installed to cool the stator winding by air cooling or liquid cooling, but this further causes noise generated by the brushless motor.
Disclosure of Invention
Therefore, the invention provides a high-precision mute brushless motor and a chef machine, which are used for solving the problems of noise caused by heating of a stator winding and magnetic leakage vibration of a silicon steel sheet in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
according to a first aspect of the present invention,
the invention discloses a high-precision mute brushless motor, comprising:
the tail end of the shell is provided with an end cover in a sealing way, and the head end of the shell is provided with a speed reducer;
the outer side of the heat dissipation sleeve is connected with the inside of the shell and forms a cavity with the shell, and a stator winding is arranged in the cavity and is filled with transformer oil;
the end part of the hollow rotor is coaxially connected with the power input end of the speed reducer in a transmission way, the hollow rotor is rotatably arranged at the axis of the heat dissipation sleeve, and the stator winding is electrified with three-phase electricity to form a rotating magnetic field to push the hollow rotor to rotate;
the end part of the reflux member is coaxially connected with the power output end of the speed reducer in a transmission way, and the reflux member is rotatably arranged at the axis of the hollow rotor;
when the motor is started, the hollow rotor drives the reflux member to rotate through the speed reducer, and the reflux member drives transformer oil to circularly flow among the end cover, the cavity and the speed reducer.
Further, the speed reducer includes:
the head end of the input shaft is coaxially connected with the central wheel in a transmission way, and the tail end of the input shaft is communicated with the hollow rotor and is coaxially connected with the hollow rotor in a transmission way;
the center wheel is in meshed transmission connection with a plurality of planet gears, and the planet gears are arranged on the planet wheel and are suitable for driving the planet wheel to rotate;
the front side of the base is provided with an external gear cavity, and a plurality of planetary gears are in meshed transmission connection with an inner gear ring arranged on the inner side of the external gear cavity;
the first circulation cavity is arranged at the rear side of the base and communicated with the tail end of the heat dissipation sleeve so that transformer oil can be introduced into the first circulation cavity.
Further, the end cap includes:
the cover body is internally provided with a second circulation cavity and is fixedly connected to the tail end of the shell in a threaded manner;
the radiating fins are arranged on the rear side of the cover body;
the central input hole is sleeved on the hollow rotor in a sliding way, and is communicated with the speed reducer through the hollow rotor;
the central input hole is arranged at the front end of the cover body and is communicated with the second circulation cavity, the second circulation cavity is communicated with a plurality of output holes arranged at the front end of the cover body, and a plurality of output holes are communicated with the head end of the heat dissipation sleeve.
Further, the return member includes a spline, a connecting shaft, and a helical blade;
the tail end of the spline is integrally formed with one end of the connecting shaft, the other end of the connecting shaft is integrally formed with the helical blade, the helical blade is positioned at the axis of the hollow rotor, and the spline is coaxially connected with the planetary wheel disc in a transmission manner.
Further, the housing includes:
the stator winding is circumferentially arranged on the inner wall of the shell;
the sound damping piece, flexible rubber material, the outside is provided with a plurality of micropores, and the inboard subsides are established the casing outside.
Further, the hollow rotor includes:
the outer wall of the hollow main shaft is integrally formed with the rotor seat, and the inner wall of the hollow main shaft is provided with a connecting key for outputting torque to the speed reducer;
and the permanent magnet is inlaid in a clamping groove positioned at the outer side of the rotor seat.
Further, the input shaft includes:
the tail end of the shaft tube is provided with a spline groove which is suitable for being matched with a connecting key of the hollow main shaft so as to transmit torque, the head end of the shaft tube is provided with a plum spline, and the central wheel is coaxially connected with the shaft tube in a transmission way through the plum spline;
the oil outlet is arranged on the side face of the shaft tube and is communicated with the shaft tube, and the first circulation cavity is communicated with the hollow main shaft through the oil outlet.
Further, the planetary wheel disc includes:
the outer edge of the disc body is provided with a chute and is arranged in the outer gear cavity in a sliding way through the chute;
the planetary wheel grooves are uniformly arranged around the sun wheel grooves and are communicated with the sun wheel grooves, and the sun wheel grooves are arranged on the back side of the disc body;
the fixed shaft is positioned at the center of the disc body, and is internally provided with a spline and is in coaxial transmission connection with the spline.
Further, an oil filter screen is arranged in the second circulation cavity, and soundproof cotton is arranged in the heat dissipation sleeve.
According to a second aspect of the present invention,
a chef machine comprises the high-precision mute brushless motor, wherein a stirring frame in the chef machine is coaxially and drivingly connected with a speed reducer
The invention has the following advantages:
the invention discloses a mute brushless motor, which drives a hollow rotor to rotate by forming a rotating magnetic field in a shell, in the process, the hollow rotor drives a reflux member to rotate through a speed reducer, meanwhile, the speed reducer is responsible for driving an external load to rotate, and transformer oil circularly flows in the motor under the action of the reflux member. Compared with the prior art, the technical scheme utilizes the characteristics of high heat conductivity, high insulativity and certain viscosity of the transformer oil, and can effectively inhibit the vibration of the silicon steel sheet, thereby reducing the noise generated by the silicon steel sheet of the stator winding, and simultaneously, can effectively reduce heat aggregation, avoid the coil from being burnt out, and ensure long-service-life operation of the motor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.
FIG. 1 is a front view of a high precision silent brushless motor provided by the present invention;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 provided by the present invention;
FIG. 3 is a perspective view of an end cap provided by the present invention;
FIG. 4 is an exploded view of the speed reducer provided by the present invention;
FIG. 5 is a perspective view of an input shaft provided by the present invention;
FIG. 6 is a perspective view of a planetary wheel provided by the present invention;
FIG. 7 is a perspective view of a stator winding provided by the present invention;
FIG. 8 is a schematic view of an assembled hollow rotor and return member provided by the present invention;
in the figure: 1, a shell; a housing 11; 12 silencing sheets; 2 end covers; a 21 lid; 22 a second transfer chamber; 23 radiating fins; 24 output holes; 25 center input holes; 3, a speed reducer; 31 an input shaft; 311 shaft tube; 312 spline grooves; 313 oil outlet holes; 314 bearings; 315 Mei Huajian; 32 planet gears; 33 planetary wheel discs; 331 a tray body; 332 a plurality of planetary wheel grooves; 333 dead axle; 334 solar groove; 34 centre wheels; a 35 base; a 36 external gear cavity; 37 a first transfer chamber; 4, a heat dissipation sleeve; 5, a hollow rotor; 51 hollow spindle; 52 rotor seats; 53 permanent magnets; 54 clamping grooves; 6 stator windings; 7 a reflow member; 71 spline; 72 a connecting shaft; 73 helical blades.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8 together, the technical scheme provided by the invention mainly includes that three-phase electricity is introduced into a stator winding 6 to form a rotating magnetic field, and then a hollow rotor 5 is pushed to rotate, and the high-precision mute brushless motor disclosed in the technical scheme is specifically described.
In this embodiment, as shown in fig. 1 and 7, the brushless motor mainly includes a housing 1, a heat dissipation sleeve 4, stator windings 6, a hollow rotor 5 and a backflow member 7, wherein an end cover 2 is provided at the tail end of the housing 1 in a sealing manner, a decelerator 3 is installed at the head end of the housing 1, a cylindrical inner cavity is provided inside the housing 1, and a plurality of stator windings 6 are uniformly and fixedly arranged along the circumferential direction on the inner wall of the inner cavity. The outer side of the heat dissipation sleeve 4 is connected with a cylindrical inner cavity arranged inside the shell 1, specifically, the outer side of the heat dissipation sleeve 4 and the shell 1 form a cavity, the stator winding 6 is arranged in the cavity, and transformer oil is filled in the cavity, so that the stator winding 6 is completely immersed in the transformer oil, vibration generated by the stator winding 6 is reduced or inhibited, noise is reduced, and heat emitted by the stator winding 6 is effectively absorbed, so that damage to a coil is avoided by utilizing the characteristics of high boiling point, high specific heat and high viscosity of the transformer oil. In this embodiment, the hollow rotor 5 is located at the axis of the heat dissipation sleeve 4, and transformer oil can be isolated from the hollow rotor 5 by the heat dissipation sleeve 4. Meanwhile, through holes communicated with the cavity are formed in the two ends of the heat dissipation sleeve 4. The through holes are respectively communicated with the end cover 2 and the speed reducer 3, thereby realizing the technical effect of connecting the end cover 2, the cavity and the speed reducer 3 together in series.
On the basis of the above embodiment, as shown in fig. 2, one end of the hollow rotor 5 is coaxially and drivingly connected with the power input end of the speed reducer 3 for transmitting torque and achieving a communicating effect. On the other hand, the other end of the hollow rotor 5 communicates with the end cover 2, whereby the end cover 2 can be connected in series with the decelerator 3 through the hollow rotor 5, whereby the transformer oil can be caused to flow in a closed loop between the end cover 2, the cavity and the decelerator 3 and the hollow rotor 5, and whereby the heat generated by the stator winding 6 is released to the outside.
In this embodiment, as shown in fig. 7 and 8, the hollow rotor 5 is of a hollow structure, and the hollow rotor 5 outputs torque outwards, while the reflux member 7 is located at the inner axis of the hollow rotor 5, wherein the reflux member 7 is coaxially and drivingly connected with the power output end of the speed reducer 3, so that the speed reducer 3 can output torque outwards and simultaneously drive the reflux member 7 to rotate. The hollow rotor 5 is coaxially connected with the power input end of the speed reducer 3 in a transmission manner, so that the reflux member 7 rotates in the hollow rotor 5 and forms a reduction ratio with the hollow rotor 5, and when the motor is started, the hollow rotor 5 drives the reflux member 7 to rotate through the speed reducer 3, the reflux member 7 drives transformer oil to circularly flow among the end cover 2, the cavity and the speed reducer 3, and on the basis, the stator winding 6 is always immersed in the flowing transformer oil, so that the following technical effects can be realized:
the transformer oil has higher insulating strength than air, can improve the insulating strength of the stator core, can prevent the stator from being corroded by moisture, can effectively inhibit vibration and reduce noise transmission;
the transformer oil has high specific heat and can be used as a coolant, the heat generated during the operation of the motor enables the oil close to the iron core and the winding to absorb the heat, the reflux component 7 drives the transformer oil to flow at a high speed, the heat can be dissipated through the end cover 2, and the normal operation of the motor is ensured;
because the electric arc can be generated when the motor switch switches the contacts, the arc extinguishing performance of the medium can be improved by utilizing the advantage of good heat conducting performance of the transformer oil, thereby playing a role in protecting the motor.
In some embodiments, as shown in fig. 6, the speed reducer 3 is a planetary gear speed reducer, and the structure of the speed reducer includes an input shaft 31, a planetary wheel 33, a base 35 and a first circulation cavity 37, where the first circulation cavity 37 is disposed in the base 35 and is located at the rear side of the base 35, and the heat dissipation sleeve 4 is communicated with the hollow rotor 5 through the first circulation cavity 37. The hollow rotor 5 is connected with the tail end of the input shaft 31 in a coaxial transmission manner so as to drive the input shaft 31 to rotate to provide input torque, and the head end of the input shaft 31 is connected with the central wheel 34 in a coaxial transmission manner so as to drive the central wheel 34 to rotate. On the other hand, a center wheel 34 is rotatably arranged at the center of the planetary wheel disc 33, a plurality of planetary wheels 32 are arranged on the planetary wheel disc 33 around the center wheel 34, the planetary wheels 32 are simultaneously in meshed transmission connection with the center wheel 34, an external gear cavity 36 is further arranged on the front side of the base 35 for ensuring the stability of transmission, and the plurality of planetary wheels 32 are in meshed transmission connection with an inner gear ring arranged on the inner side of the external gear cavity 36, so that the planetary wheels 32 can revolve around the center wheel 34 while rotating, and the planetary wheel disc 33 is driven to rotate to obtain a reduction ratio. When the planetary wheel 33 rotates, the load can be driven to rotate, and the reflux member 7 can be driven to rotate, so that the transformer oil is driven to flow in the motor.
In the present embodiment, as shown in fig. 2, 4 and 6, the planetary wheel 33 includes a disc 331 and a fixed shaft 333, wherein a chute is provided at an outer edge of the disc 331 and slidably disposed in the external gear cavity 36 through the chute, so as to prevent leakage of transformer oil from the planetary wheel 33. A plurality of planetary wheel grooves 332 are uniformly arranged around the sun wheel groove 334, the planetary wheel grooves 332 are in one-to-one correspondence with the planetary wheels 32 and are communicated with the sun wheel groove 334, a central wheel 34 is arranged in the sun wheel groove 334, the central wheel 34 is slidably sleeved on a fixed shaft 333, the fixed shaft 333 is positioned at the center of the disc 331, the fixed shaft 333 is a hollow shaft, and a spline 71 is inserted into the fixed shaft 333 and is coaxially connected with the connecting shaft 72 through the spline 71 in a transmission manner.
In this embodiment, as shown in fig. 2 and 7, the reflow member 7 includes a spline 71, a connecting shaft 72 and a spiral blade 73, wherein the reflow member 7 is integrally formed by a forging process, the tail end of the spline 71 is connected to one end of the connecting shaft 72, and the other end of the connecting shaft 72 is fixedly connected to the spiral blade 73. At the same time, the connecting shaft 72 is connected to the planetary wheel 33 through the input shaft 31 by means of the spline 71 in a coaxial transmission, so that a reduction ratio exists between the rotational speeds of the helical blades 73 and the hollow main shaft 51, so that the transformer oil passes through the hollow main shaft 51.
In some embodiments, as shown in fig. 2, the end cap 2 includes a cap body 21, a heat dissipating fin 23, and a central input aperture 25. Wherein, the central input hole 25 is arranged at the front end of the cover body 21 and is communicated with the second circulation cavity 22, the second circulation cavity 22 is communicated with a plurality of output holes 24 arranged at the front end of the cover body 21, a plurality of output holes 24 are communicated with the head end of the heat dissipation sleeve 4, the hollow rotor 5 rotates in the central input hole 25, and meanwhile, the hollow rotor 5 is communicated with the first circulation cavity 37 of the speed reducer 3, so that the second circulation cavity 22, the hollow main shaft 51, the first circulation cavity 37 and the inner cavity formed by the heat dissipation sleeve 4 complete a closed loop, and transformer oil passes through. In this embodiment, the second circulation cavity 22 is disposed in the cover 21, and the heat dissipation fins 23 are disposed at the rear side of the cover 21, transformer oil passes through the heat dissipation fins 23 at a high speed, and the heat dissipation fins 23 are utilized to enlarge the contact area with air, so that a good cooling effect can be achieved for the transformer oil.
In some embodiments, as shown in fig. 8, the hollow rotor 5 includes a hollow main shaft 51 and a permanent magnet 53, wherein the outer side of the hollow main shaft 51 is integrally formed with a rotor seat 52, and a connecting key is arranged on the inner wall of the hollow main shaft 51 and is matched with the input shaft 31 to output torque to the speed reducer 3;
the permanent magnet 53 is embedded in a clamping groove 54 positioned outside the rotor seat 52, and the rotating magnetic field generated by the stator winding 6 mainly pushes the permanent magnet 53 to drive the hollow main shaft 51 to rotate.
In the above embodiment, as shown in fig. 5, the input shaft 31 includes the shaft tube 311 and the oil outlet 313, wherein the bearing 314 is located between the shaft tube 311 and the oil outlet 313, and the rear end of the shaft tube 311 is provided with a spline groove 312, the spline groove 312 is adapted to cooperate with the connecting key of the hollow main shaft 51 to transmit torque, and the front end of the shaft tube 311 is provided with a Mei Huajian 315 and is coaxially and drivingly connected with the center wheel 34 by means of the spline 315. In addition, the oil outlet 313 is disposed at a side of the shaft tube 311, and the oil outlet 313 is communicated with the shaft tube 311, so that the first circulation chamber 37 is communicated with the hollow main shaft 51 through the oil outlet 313.
In one embodiment of the present disclosure, as shown in fig. 2, the housing 1 includes a shell 11 and a sound damping sheet 12. The casing 11 is made of aluminum alloy, the stator winding 6 is circumferentially arranged on the inner wall of the casing 11, the silencing sheets 12 are arranged on the outer side of the casing 11, and the silencing sheets 12 are made of flexible rubber and are provided with a large number of fine holes to further reduce noise.
In some embodiments, an oil filter screen (not shown) is installed in the second circulation chamber 22 to prevent the oil path from being blocked, and soundproof cotton is installed in the heat dissipation sleeve 4 to enhance the silencing effect.
Based on the same inventive concept, the invention also discloses a chef machine, which comprises the high-precision mute brushless motor, wherein the stirring frame in the chef machine is coaxially connected with the speed reducer 3 in a transmission way so as to drive the chef machine to operate. Specifically, the high-precision mute brushless motor is included in the protection scope of the invention.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (6)
1. A high precision mute brushless motor, comprising:
the shell (1), the tail end is provided with an end cover (2) in a sealing way, and the head end is provided with a speed reducer (3);
the outer side of the heat dissipation sleeve (4) is connected with the inside of the shell (1) and forms a cavity with the shell (1), and a stator winding (6) is arranged in the cavity and is filled with transformer oil;
the end part of the hollow rotor (5) is coaxially connected with the power input end of the speed reducer (3) in a transmission way, the hollow rotor (5) is rotatably arranged at the axis of the heat dissipation sleeve (4), and the stator winding (6) is electrified with three-phase electricity to form a rotating magnetic field to push the hollow rotor (5) to rotate;
the end part of the reflux member (7) is coaxially connected with the power output end of the speed reducer (3) in a transmission way, and the reflux member (7) is rotatably arranged at the axis of the hollow rotor (5);
when the motor is started, the hollow rotor (5) drives the reflux member (7) to rotate through the speed reducer (3), and the reflux member (7) drives transformer oil to circularly flow among the end cover (2), the cavity and the speed reducer (3);
the speed reducer (3) includes:
the head end of the input shaft (31) is coaxially connected with the central wheel (34) in a transmission way, and the tail end of the input shaft is communicated with the hollow rotor (5) and coaxially connected with the hollow rotor in a transmission way;
the center wheel (34) is rotatably arranged at the center of the planetary wheel disc (33), the center wheel (34) is simultaneously in meshed transmission connection with a plurality of planetary wheels (32), and the planetary wheels (32) are arranged on the planetary wheel disc (33) and are suitable for driving the planetary wheel disc (33) to rotate;
the front side of the base (35) is provided with an external gear cavity (36), and a plurality of planetary gears (32) are in meshed transmission connection with an inner gear ring arranged at the inner side of the external gear cavity (36);
the first circulation cavity (37) is arranged at the rear side of the base (35) and is communicated with the tail end of the heat dissipation sleeve (4) so that transformer oil is introduced into the first circulation cavity (37);
the reflow member (7) includes a spline (71), a connecting shaft (72), and a helical blade (73);
the tail end of the spline (71) is integrally formed with one end of a connecting shaft (72), the other end of the connecting shaft (72) is integrally formed with a spiral blade (73), the spiral blade (73) is positioned at the axis of the hollow rotor (5), and the spline (71) is coaxially connected with the planetary wheel disc (33) in a transmission manner;
the hollow rotor (5) comprises:
the outer wall of the hollow main shaft (51) and the rotor seat (52) are integrally formed, and the inner wall of the hollow main shaft is provided with a connecting key which is used for outputting torque to the speed reducer (3);
the permanent magnet (53) is embedded in a clamping groove (54) positioned at the outer side of the rotor seat (52);
the input shaft (31) includes:
the tail end of the shaft tube (311) is provided with a spline groove (312), the spline groove (312) is suitable for being matched with a connecting key of the hollow main shaft (51) so as to transmit torque, the head end of the shaft tube (311) is provided with a Mei Huajian (315), and the central wheel (34) is coaxially connected with the shaft tube (311) in a transmission way through Mei Huajian (315);
and the oil outlet hole (313) is arranged on the side surface of the shaft tube (311) and communicated with the shaft tube (311), and the first circulation cavity (37) is communicated with the hollow main shaft (51) through the oil outlet hole (313).
2. The high precision silent brushless motor according to claim 1, characterized in that the end cap (2) comprises:
the cover body (21) is internally provided with a second circulation cavity (22) and is screwed and fixed at the tail end of the shell (1);
a heat radiation fin (23) provided on the rear side of the cover body (21);
a central input hole (25) which is sleeved on the hollow rotor (5) in a sliding way and is communicated with the speed reducer (3) through the hollow rotor (5);
the central input hole (25) is formed in the front end of the cover body (21) and is communicated with the second rotating cavity (22), the second rotating cavity (22) is communicated with a plurality of output holes (24) formed in the front end of the cover body (21), and a plurality of output holes (24) are communicated with the head end of the heat dissipation sleeve (4).
3. The high precision silent brushless motor according to claim 1, wherein the housing (1) comprises:
a casing (11) with the stator winding (6) circumferentially mounted on the inner wall;
and the silencing piece (12) is made of flexible rubber, a plurality of fine holes are formed in the outer side of the silencing piece, and the inner side of the silencing piece is attached to the outer side of the shell (11).
4. The high precision silent brushless motor according to claim 1, characterized in that the planetary wheel (33) comprises:
the outer edge of the disc body (331) is provided with a chute and is arranged in the outer gear cavity (36) in a sliding way through the chute;
the planetary wheel grooves (332) are uniformly arranged around the sun wheel grooves (334) and are communicated with the sun wheel grooves (334), and the sun wheel grooves (334) are arranged on the back side of the disc body (331);
the fixed shaft (333) is positioned at the center of the disc body (331), and a spline (71) is inserted into the fixed shaft (333) and is in coaxial transmission connection with the spline (71).
5. The high-precision silent brushless motor according to claim 2, characterized in that the second flow chamber (22) is internally provided with an oil filter screen, and the heat dissipation sleeve (4) is internally provided with soundproof cotton.
6. A chef machine comprising a high precision silent brushless motor as claimed in claim 1, characterized in that the stirring rack in the chef machine is in coaxial drive connection with the decelerator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410005758.8A CN117498605B (en) | 2024-01-03 | 2024-01-03 | High-precision mute brushless motor and chef machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410005758.8A CN117498605B (en) | 2024-01-03 | 2024-01-03 | High-precision mute brushless motor and chef machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117498605A CN117498605A (en) | 2024-02-02 |
| CN117498605B true CN117498605B (en) | 2024-03-12 |
Family
ID=89676860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410005758.8A Active CN117498605B (en) | 2024-01-03 | 2024-01-03 | High-precision mute brushless motor and chef machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117498605B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205945333U (en) * | 2016-08-11 | 2017-02-08 | 漯河市四通泵业有限公司 | Sand -proof device of submersible motor |
| CN210733819U (en) * | 2019-07-26 | 2020-06-12 | 武汉理工大学 | Integrated electric wheel system and electric vehicle |
| JP2021080967A (en) * | 2019-11-15 | 2021-05-27 | 本田技研工業株式会社 | Power device |
| CN114123642A (en) * | 2021-11-08 | 2022-03-01 | 嘉兴学院 | Servo motor with speed reduction adjusting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10117398A1 (en) * | 2001-04-06 | 2002-10-10 | Miscel Oy Ltd | Electric asynchronous motor |
-
2024
- 2024-01-03 CN CN202410005758.8A patent/CN117498605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205945333U (en) * | 2016-08-11 | 2017-02-08 | 漯河市四通泵业有限公司 | Sand -proof device of submersible motor |
| CN210733819U (en) * | 2019-07-26 | 2020-06-12 | 武汉理工大学 | Integrated electric wheel system and electric vehicle |
| JP2021080967A (en) * | 2019-11-15 | 2021-05-27 | 本田技研工業株式会社 | Power device |
| CN114123642A (en) * | 2021-11-08 | 2022-03-01 | 嘉兴学院 | Servo motor with speed reduction adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117498605A (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017370503B2 (en) | Motor rotor support frame and motor | |
| WO2016206342A1 (en) | Self-circulation liquid-cooled permanent magnet motor | |
| JP4187606B2 (en) | Electric motor | |
| US3670190A (en) | Electric motor and higher speed fan assembly | |
| CN117498605B (en) | High-precision mute brushless motor and chef machine | |
| CN213959882U (en) | Brushless motor heat dissipation assembly | |
| CN112383194B (en) | Self-cooling axial flux motor with built-in centrifugal fan | |
| CN101964561A (en) | Motor | |
| CN210724351U (en) | High-efficiency three-phase asynchronous motor | |
| JPH09140095A (en) | Hand-held disc grinder | |
| KR20120128046A (en) | Electric motor and electric vehicle having the same | |
| CN207459950U (en) | A kind of AC series excited machine | |
| CN107512169B (en) | Electric wheel transmission mechanism and electric automobile thereof | |
| CN113014054B (en) | Integrated shell-less motor | |
| CN104753206A (en) | Permanent magnet synchronous motor and screw rod compressor provided with permanent magnet synchronous motor | |
| CN204408046U (en) | Permagnetic synchronous motor and be equipped with the helical-lobe compressor of this permagnetic synchronous motor | |
| CN220022446U (en) | Motor | |
| CN220087100U (en) | Driving device integrated with speed reducing mechanism | |
| CN219268632U (en) | Forced air cooling type motor | |
| CN217590398U (en) | Internal and external double-cooling type inner rotor motor | |
| CN213213239U (en) | Servo motor with cooling heat dissipation formula | |
| CN103618434A (en) | Centrifugal air cooling permanent magnetic speed governor | |
| CN219372107U (en) | Axial flux motor with cooling structure | |
| US2518479A (en) | Dynamoelectric machine | |
| CN216122017U (en) | Starter direct current motor armature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |