WO2022236630A1 - Moteur et dispositif de séchage - Google Patents

Moteur et dispositif de séchage Download PDF

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Publication number
WO2022236630A1
WO2022236630A1 PCT/CN2021/092882 CN2021092882W WO2022236630A1 WO 2022236630 A1 WO2022236630 A1 WO 2022236630A1 CN 2021092882 W CN2021092882 W CN 2021092882W WO 2022236630 A1 WO2022236630 A1 WO 2022236630A1
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WO
WIPO (PCT)
Prior art keywords
connecting plate
motor
air duct
stator
airflow
Prior art date
Application number
PCT/CN2021/092882
Other languages
English (en)
Chinese (zh)
Inventor
廖然
Original Assignee
深圳汝原科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳汝原科技有限公司 filed Critical 深圳汝原科技有限公司
Priority to PCT/CN2021/092882 priority Critical patent/WO2022236630A1/fr
Priority to CN202180004966.0A priority patent/CN114287096A/zh
Publication of WO2022236630A1 publication Critical patent/WO2022236630A1/fr

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    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D20/00—Hair drying devices; Accessories therefor
    • A45D20/04—Hot-air producers
    • A45D20/08—Hot-air producers heated electrically
    • A45D20/10—Hand-held drying devices, e.g. air douches
    • 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
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present application relates to the field of motors, in particular to a motor and a drying device.
  • a drying device such as a hair dryer
  • the hair dryer usually adopts a high-speed motor, such as a motor with a speed of 100k rpm/rev.
  • the high-speed motor includes a stator.
  • the stator includes two coaxial cylinders inside and outside and a stator core connected to the inner cylinder.
  • the area between the inner and outer cylinders forms an "air duct".
  • the stator of the motor needs to be connected
  • the iron core and the external circuit board are connected together, and the wires pass through the air duct from the outer cylinder to connect to the stator core on the inner cylinder.
  • the wire has a certain flexibility and width, and the wind speed of the air duct of the high-speed motor is relatively high, the airflow passing through the wire will generate greater noise and vibration, which will cause the wire and the wind in the air duct to interact with each other, which is not conducive to the noise reduction and maintenance of the high-speed motor. Quality Control.
  • Embodiments of the present application provide a motor and a drying device.
  • An embodiment of the present application provides a motor.
  • the electric machine includes a stator, a rotor and an electrical connection assembly.
  • the stator is provided with an air duct, the rotor is passed through the stator, the rotor can rotate in the stator and generate airflow, and the airflow can flow in the air duct.
  • the electrical connection assembly is used to electrically connect the stator and external components, the electrical connection assembly includes a first connection plate and a second connection plate, the first connection plate is electrically connected to the stator, and the second connection plate is electrically connected to the stator.
  • the connecting plate is electrically connected with the first connecting plate, and protrudes from the outside of the stator across the air duct, and the protruding part of the second connecting plate is used to electrically connect with external components through conductors.
  • the embodiment of the present application provides a drying device.
  • the drying device includes a casing and a motor, and the motor is accommodated in the casing.
  • the electric machine includes a stator, a rotor and an electrical connection assembly.
  • the stator is provided with an air duct, the rotor is passed through the stator, the rotor can rotate in the stator and generate airflow, and the airflow can flow in the air duct.
  • the electrical connection assembly is used to electrically connect the stator and external components, the electrical connection assembly includes a first connection plate and a second connection plate, the first connection plate is electrically connected to the stator, and the second connection plate is electrically connected to the stator.
  • the second connecting plate is electrically connected with the first connecting plate, and protrudes from the outside of the stator across the air duct, and the protruding part of the second connecting plate is used to electrically connect with external components through conductors.
  • an electrical connection assembly for electrically connecting the stator and external components is provided in the motor, and the second connection plate in the electrical connection assembly protrudes from the outside of the stator across the air duct. Since the opposite of the air duct is not a flexible wire, but a second connecting plate with a certain hardness, it can prevent the airflow in the air duct from generating a large Noise and vibration can also keep the position and state of the second connecting plate in the air duct unchanged. That is to say, the second connecting plate and the airflow in the air duct will not affect each other, which is beneficial to noise reduction and quality control of the motor.
  • Fig. 1 is a stereoscopic assembly diagram of a motor in some embodiments of the present application
  • Fig. 2 is a three-dimensional exploded schematic view of the motor shown in Fig. 1;
  • Fig. 3 is a perspective assembly schematic diagram of another perspective of the motor in some embodiments of the present application.
  • Fig. 4 is a schematic cross-sectional view of the motor shown in Fig. 3;
  • FIG. 5 is a schematic diagram of a cross-section of a second connecting plate of a motor according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a cross-section of a second connecting plate of a motor according to another embodiment of the present application.
  • FIG. 7 is a schematic diagram of a cross section of a second connection plate of a motor according to another embodiment of the present application.
  • Fig. 8 is a schematic structural view of a drying device in some embodiments of the present application.
  • a first feature being "on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the drying device usually uses resistance wires to heat the airflow sucked by the motor, and then blow out a large amount of air with a higher temperature to achieve the purpose of drying.
  • the drying device usually adopts a high-speed motor.
  • the motor includes a stator.
  • the stator includes two coaxial cylinders inside and outside and a stator core connected to the inner cylinder.
  • the area between the inner and outer cylinders forms an "air duct".
  • the core and the external circuit board are connected together, and the wires will pass through the air duct from the outer cylinder to connect to the stator core on the inner cylinder.
  • the airflow passing through the wires will generate greater noise and vibration; on the other hand, due to the different wires in different motors, even the same At different times, under the influence of wind in the air duct, the position and state of the wires in the air duct are also different, which may affect the flow direction of the wind in the air duct. Therefore, in this configuration, the wire and the wind in the air duct affect each other, which is not conducive to noise reduction and quality control of the high-speed motor.
  • the embodiment of the present application provides a motor 10 .
  • the motor 10 includes a stator 11 , a rotor 12 and an electrical connection assembly 13 .
  • the stator 11 is provided with an air duct 111 , and the rotor 12 passes through the stator 11 .
  • the rotor 12 can rotate in the stator 11 and generate airflow, and the airflow can flow in the air duct 111 .
  • the electrical connection assembly 13 is used to electrically connect the stator 11 with external components.
  • the electrical connection assembly 13 includes a first connection plate 131 and a second connection plate 132, the first connection plate 131 is electrically connected to the stator 11, the second connection plate 132 is electrically connected to the first connection plate 131, and crosses the air duct 111 from The outer side of the stator 11 protrudes, and the protruding part of the second connecting plate 132 is used to electrically connect with external components through the conductor 14 .
  • the motor 10 in the embodiment of the present application is provided with an electrical connection assembly 13 for electrically connecting the stator 11 and external components, and the second connection plate 132 in the electrical connection assembly 13 protrudes from the outside of the stator 11 across the air duct 111 . Since the opposite to the air duct 111 is not a flexible wire, but a second connecting plate 132 with a certain hardness, it can prevent the airflow in the air duct 111 from passing through the second connection while electrically connecting the stator 11 and the external components. The plate 132 generates relatively large noise and vibration, and can also keep the position and state of the second connecting plate 132 in the air duct 111 unchanged. That is, the airflow in the second connecting plate 132 and the air duct 111 will not affect each other, which is beneficial to noise reduction and quality control of the motor 10 .
  • the motor 10 includes a stator 11 , a rotor 12 and an electrical connection assembly 13 .
  • the rotor 12 passes through the stator 11 , the rotor 12 can rotate in the stator 11 and generate air flow, and the electrical connection component 13 is used for electrically connecting the stator 11 and external components.
  • the stator 11 includes an air duct 111 , an outer cylinder 112 , an inner cylinder 113 and guide vanes 114 .
  • the inner cylinder 113 is accommodated in the outer cylinder 112 , and an air passage 111 is formed between the inner cylinder 113 and the outer cylinder 112 , and the airflow generated by the rotation of the rotor 12 can flow in the air passage 111 .
  • the inner cylinder 113 and the outer cylinder 112 are two coaxial cylinders, for example, the inner cylinder 113 and the outer cylinder 112 are two coaxial cylinders (as shown in FIG. 2 ). .
  • the gap distribution between the inner cylinder 113 and the outer cylinder 112 is relatively uniform, which is beneficial to the air duct 111 between the inner cylinder 113 and the outer cylinder 112 for the airflow generated by the rotation of the rotor 12 internal flow.
  • the inner cylinder 113 and the outer cylinder 112 can also be different axes.
  • the inner cylinder 113 and the outer cylinder 112 are arranged eccentrically. At this time, the installation accuracy of the inner cylinder 113 and the outer cylinder 112 is not high. Easy to install.
  • the inner cylinder 113 and the outer cylinder 112 may not be limited to cylinders in this embodiment, but may also be polygonal prisms in cross section, such as quadrangular prisms in quadrangular cross section and pentagonal prisms in pentagonal cross section. Wait.
  • the shape of the cross section of the inner cylinder 113 and the shape of the cross section of the outer cylinder 112 can be the same, such as circular in this embodiment, or different, for example, the shape of the cross section of the inner cylinder 113 is circular, and the shape of the outer cylinder 112 is circular.
  • the shape of the cross-section is a regular pentagon, so that it can be easily adapted to other external parts.
  • the vane 114 is located in the air duct 111 , and the vane 114 is connected to the inner cylinder 113 and the outer cylinder 112 .
  • one end of the guide vane 114 is connected to the outer wall of the inner cylinder 113 , and the other end is connected to the inner wall of the outer cylinder 112 .
  • the guide vanes 114 are used to guide the airflow in the air duct 111 .
  • the number of guide vanes 114 may be one. In some other embodiments, the number of guide vanes 114 may be multiple (multiple herein means greater than or equal to two).
  • a plurality of guide vanes 114 for guiding the air flow are arranged in the air duct 111 , which is beneficial to output the air flow in the air duct 111 to the outside of the motor 10 .
  • a plurality of guide vanes 114 are evenly distributed around the central axis of the inner cylinder 113, so that the airflow flowing through the air duct 111 can be uniformly exported from the outlet of the air duct 111, so that the user can The strength of the wind felt in each area is uniform.
  • the plurality of guide vanes 114 are not uniformly distributed around the central axis of the inner cylinder 113, but may be concentrated in the left half area of the air duct 111, or have half areas, so as to concentrate the airflow to the user's left side. side or right.
  • the opposite ends of the plurality of guide vanes 114 are respectively fixedly connected to the outer side wall of the inner tube 113 and the inner side wall of the outer tube 112.
  • the passage between the guide vanes 114 and the guide vanes 114 is The wind guide structure of the guide vane 114 is relatively stable.
  • at least one guide vane 114 is movably connected to the inner cylinder 113 and the outer cylinder 112.
  • one end of the guide vane 114 is rotatably connected to the outer side wall of the inner cylinder 113 through a first rotating shaft.
  • the other end of the guide vane is installed in the track on the inner wall of the outer tube 112 and can move along the track.
  • the other end rotates along the track on the outer tube 112 (similar to a shutter) , so that the channel between the guide vane 114 and the guide vane 114 can be changed (the shape and the size of the space are changed), and then the direction in which the guide vane 114 guides the airflow can be changed.
  • the angle of rotation is adjusted to guide the airflow to the user's desired direction to adjust the guide vane 114, so as to focus on heating the area that the user wants to heat, so as to better meet the individual needs of the user.
  • the rotor 12 includes a shaft 121 , a rotor cover 122 and fan blades 123 .
  • the rotating shaft 121 is rotatably installed in the inner tube 113 of the stator 11 through the bearing 18 .
  • the inner cylinder 113 is sleeved on the outside of the bearing 18 , the rotating shaft 121 passes through the bearing 18 , and the rotating shaft 121 can rotate in the inner cylinder 113 .
  • the rotating shaft 121 includes a first end 1211 and a second end 1212 oppositely disposed.
  • the first end 1211 is received in the inner tube 113 , and the second end 1212 can be exposed from the inner tube 113 .
  • the rotor cover 122 is disposed on the second end 1212 of the rotating shaft 121, specifically, the rotor cover 122 is sleeved on the part of the second end 1212 of the rotating shaft 121 exposed from the inner cylinder 113.
  • the fan blade 123 is installed on the peripheral wall of the rotor cover 122 , and the fan blade 123 is located between the inner cylinder 113 and the outer cylinder 112 . In this way, the rotor cover 122 and the fan blades 123 can rotate together with the rotating shaft 121 to generate airflow, and the airflow can flow in the air duct 111 between the inner cylinder 113 and the outer cylinder 112 .
  • the number of fan blades 123 may be multiple, and the plurality of fan blades 123 may be evenly distributed on the peripheral wall of the rotor cover 122.
  • the connection between the rotor cover 122 and the rotating shaft 121, and the Any one of the connection between the leaf 123 and the rotor cover 122 can be glued with anaerobic glue or other glue, can also be connected by clipping or welding, or a combination of multiple connection methods, which are not limited here.
  • the motor 10 further includes a coil 16 and a magnet 17 , the coil 16 is disposed inside the inner cylinder 113 , and the electrical connection component 13 is electrically connected to the coil 16 to energize the coil 16 .
  • the magnet 17 is disposed on the first end 1211 of the rotating shaft 121 and opposite to the coil 16 . The coil 16 and the magnet 17 can interact to drive the rotating shaft 121 to rotate.
  • the motor 10 includes a plurality of coils 16
  • the stator 11 further includes an iron core 115 accommodated in the inner cylinder 113 .
  • the iron core 115 includes an annular portion 1151 and a plurality of sleeve portions 1152 radially extending from the inner wall of the annular portion 115 to the center of the annular portion 1151 .
  • a plurality of coils 16 correspond to a plurality of sheathing parts 1152, and the coils 16 are sheathed on the corresponding sheathing parts 1152, and the electrical connection assembly 13 supplies current to the coils 16, and the coils 16 and the corresponding sheathing parts 1152 generate a changing magnetic field
  • the magnet 17 driven by the magnetic field can drive the rotor cover 122 and the fan blade 123 to rotate (the magnet 17 drives the rotating shaft 121 to rotate, and the rotating shaft 121 drives the sub cover 122 and the fan blade 123 to rotate).
  • the electrical connection assembly 13 includes a first connection plate 131 and a second connection plate 132 .
  • the first connection plate 131 is electrically connected to the stator 11
  • the second connection plate 132 is electrically connected to the first connection plate 131, and extends from the outside of the stator 11 across the air duct 111, and the protruding part of the second connection plate 132 is used for It is electrically connected with external components through the conductor 14 . Since the opposite to the air duct 111 is not a flexible wire, but a second connecting plate 132 with a certain hardness, it can prevent the airflow in the air duct 111 from passing through the second connection while electrically connecting the stator 11 and the external components.
  • the plate 132 generates relatively large noise and vibration, and can also keep the position and state of the second connecting plate 132 in the air duct 111 unchanged. That is, the airflow in the second connecting plate 132 and the air duct 111 will not affect each other, which is beneficial to noise reduction and quality control of the motor 10 .
  • the number of the second connecting plate 132 in the motor 10 may be one or multiple (for example, 2, 3, 4, 5 or even more), which is not limited here.
  • the first connecting plate 131 includes a first surface 1311 and a second surface 1312 opposite to each other, and the first surface 1311 is electrically connected to a side of the stator 11 away from the fan blade 123 .
  • the first surface 1311 is electrically connected to the coil 16 of the stator 11 , so as to realize the electrical connection between the coil 16 and the electrical connection component 13 .
  • the first connection board 131 may be any one of a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board.
  • the airflow in the air duct 111 flows from the fan blades 123 to the first connecting plate 131 , that is, the airflow in the air duct 111 flows along the direction of the stator 11 to the second connecting plate 132 .
  • the iron core 115 is provided with a plurality of protrusions 1153 on the side close to the first connection plate 131, and the first connection plate 131 is provided with installation holes 1313 corresponding to the positions of the protrusions 1153.
  • the protrusion 1153 is combined with the mounting hole 1313 to mechanically connect the first connecting plate 131 and the stator 11 .
  • the first connecting plate 131 can also be electrically connected to the coil 16 through the protrusion 1153 .
  • the number and position of the protruding parts 1153 can correspond to the number and position of the coils 16. In this way, by setting different wiring methods on the first connecting plate 131, different currents can be passed to different coils 16 to produce varying magnetic field.
  • the second connecting plate 132 is used for electrically connecting the first connecting plate 131 and the conductor 14 . Specifically, one end of the second connecting plate 132 is electrically connected to the conductor 14 , and the other end is electrically connected to the first connecting plate 131 .
  • the second connection board 132 is electrically connected to the first surface 1311 of the first connection board 131 . Since the second connection plate 132 is electrically connected to the first surface 1311 of the first connection plate 131, compared with the second connection plate 132 electrically connected to the second surface 1312 of the first connection plate 131, the second connection plate 132 is more Being close to the stator 11, the longitudinal size of the motor 10 can be reduced, and the second connecting plate 132 can be better hidden and protected, so that it is not easy to collide with other parts and be damaged. Certainly, in some embodiments, the second connecting board 132 may also be electrically connected to the second surface 1312 of the first connecting board 131 , which is not limited here. In the following embodiments, the electrical connection between the second connection board 132 and the first surface 1311 of the first connection board 131 is taken as an example for illustration.
  • the second connection board 132 is electrically connected to the first connection board 131 through solder joints.
  • the first connecting plate 131 and the second connecting plate 132 can be connected without setting up other mechanical structures, which reduces the complexity of the structure of the motor 10 and facilitates the assembly of the motor 10 .
  • the second connecting plate 132 is welded to the first connecting plate 131 through through holes.
  • the side where the second connecting plate 132 is connected to the first connecting plate 131 is provided with a plurality of welding portions 13201, and the first connecting plate 131 is provided with a plurality of welding holes 1314 corresponding to the welding portions 13201 (which may be through holes, Blind holes are also possible).
  • Multiple welding parts 13201 are combined with the corresponding welding holes 1314, and the welding parts 13201 are welded in the corresponding welding holes 1314 to form solder joints, so as to realize the electrical connection and mechanical connection between the second connecting plate 132 and the first connecting plate 131. connect. In this way, the longitudinal dimension of the motor 10 can be further reduced.
  • the second connecting plate 132 can also be welded to the first connecting plate 131 through surface welding, that is, the first connecting plate 131 does not open the welding hole 1314, but directly welds the welding part 13201 by welding technology. On the first surface 1311 , this kind of welding does not require the pre-order opening process, so that the connection between the second connecting plate 132 and the first connecting plate 131 is simpler and easier.
  • the number of welding points welded by the two is related to the type of the motor 10 .
  • the motor is an n-phase brushless motor
  • the number of welding spots is n or a multiple of n.
  • the number of welding points is 3 or a multiple of 3 (for example, the number of welding points can be 6, 9, 12 , 18, etc.), such a design makes it difficult for the electrical connections to interfere with each other, and the reliability of the electrical connections is high.
  • the second connecting board 132 is electrically connected to the first connecting board 131 through wires (not shown). Specifically, one end of the second connecting board 132 is electrically connected to the external component through the conductor 14 , and the other end is electrically connected to the first connecting board 131 through the wire. It should be pointed out that although the second connection plate 132 is electrically connected to the first connection plate 131 through wires at this time, the second connection plate 132 still extends across the air duct 111 from the outside of the stator 11 (outside of the outer cylinder 112 ). out.
  • the electrical connection component 13 through which the airflow in the air duct 111 flows out of the motor 10 is still the second connection plate 132 , rather than being used to electrically connect the first connection plate 131 and the second connection plate 132 of wires.
  • This is still beneficial to the noise reduction and quality control of the motor 10, and the second connecting plate 132 is electrically connected to the first connecting plate 131 through wires, compared to the second connecting plate 132 and the first connecting plate 131 through solder joints.
  • the electrical connection can reduce the length and weight of the second connecting plate 132 , thereby reducing the weight and manufacturing cost of the motor 10 .
  • the second connection board 132 and the first connection board 131 are also mechanically connected using other mechanical structures (for example, in A protruding first connecting piece is arranged on the first connecting plate 131, and a second connecting piece is arranged at a corresponding position of the second connecting plate 132.
  • the first connecting piece and the second connecting piece can be combined with each other to connect the first connecting plate and the second connecting piece. two connecting plates) to increase the stability of the second connecting plate 132.
  • the second connecting plate 132 includes multiple surfaces, wherein the area of the first surface 1321 of the second connecting plate 132 is greater than the area of any other surface of the second connecting plate 132 . That is, the first surface 1321 is the surface with the largest area in the second connecting plate 132 .
  • the projected area of the second connecting plate 132 is smaller than the area of the first surface 1321 of the second connecting plate 132 .
  • the surface of the second connecting plate 132 facing the air duct 111 is not the surface with the largest area in the second connecting plate 132, but the surface facing the air duct 111 is the surface with the largest area in the second connecting plate 132.
  • Surface can reduce the contact area between the airflow in the air duct 111 and the second connecting plate 132, thereby reducing the mutual influence between the second connecting plate 132 and the airflow in the air duct 111, which is beneficial to the noise reduction and quality control of the motor 10 .
  • the second connecting plate 132 includes a first surface 1321 and a second surface 1322 adjacent to each other.
  • the second surface 1322 is opposite to the air duct 111, that is, the second surface 1322 of the second connection plate 132 faces the air duct 111, and at this time the first surface 1321 It is perpendicular to the first surface 1311 of the first connecting plate 131 .
  • the first connection board 131 When the first connection board 131 is electrically connected to the second connection board 132, the first surface 1321 of the second connection board 132 is perpendicular to the first surface 1311 of the first connection board 131, compared to the first surface 1311 of the second connection board 132.
  • One surface 1321 is inclined to the first surface 1311 of the first connecting plate 131, which can reduce the contact area between the airflow in the air duct 111 and the second connecting plate 132, thereby reducing the gap between the second connecting plate 132 and the airflow in the air duct 111.
  • the mutual influence is beneficial to noise reduction and quality control of the motor 10 .
  • the surface opposite to the air duct 111 is not the surface with the largest area in the second connecting plate 132 .
  • the contact area between the airflow in the air duct 111 and the second connecting plate 132 can be further reduced.
  • the first surface 1321 of the second connecting plate 132 can also be inclined to the first surface 1311 of the first connecting plate 131 , which is not limited here.
  • the second connecting plate 132 is provided with a raised portion 1323 corresponding to the air duct 111, and the raised portion 1323 is used to install the functional device 19, and the air flow in the air duct 111 is On the way out of the motor 10 , it can flow through the functional device 19 of the protrusion 1323 .
  • the functional device 19 includes a wind temperature sensor (not shown in the figure), and the wind temperature sensor is used to detect the temperature of the passing airflow, so as to control the power of the radiation source 30 (shown in FIG. 8 ).
  • the functional device 19 includes a wind speed sensor (not shown in the figure), and the wind speed sensor is used to detect the flow speed of the airflow, so as to control the rotation speed of the motor 10 .
  • the motor 10 may be controlled to reduce the rotational speed to reduce the velocity of the airflow, or the motor 10 may be controlled to shut down.
  • the functional device 19 may also include an electric regulator (not shown in the figure), which is used to control the rotation of the motor 10 , including the direction, speed, start and stop of the motor 10 .
  • the second connecting plate 132 is provided with a guide portion 1324 corresponding to the air duct 111 , and the air flow in the air duct 111 can flow through the guide when flowing out of the motor 10 .
  • the guide part 1324 is used to guide the air flow.
  • the second connecting plate 132 corresponds to one guide vane 114
  • the air guide part 1324 can also cooperate with the guide vanes 114 to guide the air flow.
  • the guide part 1324 is connected with the corresponding guide vane 114, and the guide part 1324 can guide the airflow together with the corresponding guide vane 114 (for example, the airflow in the air duct 111 can directly flow along the guide vane 114 to the corresponding guide portion 1324 , and then the air flows along the guide portion 1324 to the outside of the motor 10 ), which facilitates the output of the air flow to the outside of the motor 10 .
  • the air guide part 1324 is spaced from the corresponding guide vane 114, that is, the air guide part 1324 and the corresponding guide vane 114 are not connected together, and on a plane perpendicular to the flow direction of the airflow in the air duct 114, the air guide The projection of portion 1324 lies within the projection of the corresponding vane 114 .
  • the air guide part 1324 can then be guided by the corresponding guide vane 114
  • the airflow guided out of the air duct 111 that is, the guide part 1324 can guide the airflow together with the corresponding guide vane 114, thereby facilitating the output of the airflow to the outside of the motor 10;
  • the size of the flow guide part 1324 can be reduced, thereby reducing the manufacturing cost of the motor 10 .
  • the stator 11 may not be provided with the guide vanes 114 , and the air flow is only guided by the guide part 1324 , which is not limited here.
  • the second connection board 132 includes any one of a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board, that is, the second connection board 132 is provided with conductive lines, and the second connection board 132
  • the conductive lines on the second connecting board 132 are used to electrically connect the first connecting board 131 and the conductor 14 . That is to say, when both ends of the second connecting plate 132 are electrically connected to the first connecting plate 131 and the conductor 14, the current in the conductor 14 can flow to the first connecting plate 132 through the conductive line on the second connecting plate 132. plate 131.
  • the second connecting board 132 includes a dielectric body 1325 and a conductive member 1326 disposed on the dielectric body 1325, the conductive member 1326 is used to electrically connect the first connecting board 131 and the conductor 14 . That is to say, when the two ends of the second connecting plate 132 are respectively electrically connected to the first connecting plate 131 and the conductor 14, the current in the conductor 14 can flow to the first connecting plate 131 through the conductive member 1326, of course, the first connecting plate 131 The current in the connection plate 131 can also flow to the conductor 14 through the conductive member 1326 .
  • the conductive member 1326 Due to the use of the conductive member 1326 in the structure in which the conductive member 1326 is combined with the dielectric body 1325, compared to directly using a printed circuit board (including but not limited to a rigid circuit board, a flexible circuit board, or a combination of hard and soft The conductive circuit in the circuit board) can transmit a higher power current, which is conducive to driving the rotor 12 to rotate.
  • a printed circuit board including but not limited to a rigid circuit board, a flexible circuit board, or a combination of hard and soft
  • the conductive circuit in the circuit board can transmit a higher power current, which is conducive to driving the rotor 12 to rotate.
  • FIGS. 5 to 7 are cross-sectional views of the second connecting plate 132 in some embodiments.
  • the conductive member 1326 includes a wire 13261, for example, as shown in FIG. stick to the outer surface of the dielectric body 1325). Since the wires 13261 are directly disposed on the outer surface of the dielectric body 1325 , the operation is relatively simple, which can reduce the manufacturing difficulty of the second connecting plate 132 .
  • the wire 13261 is embedded in the dielectric body 1325 (for example, the wire 13261 is embedded in the dielectric body 1325 by in-film injection molding.
  • the wire 13261 is embedded in the dielectric body
  • the wires 13261 inside the dielectric body 1325 cannot be exposed from the surface of the dielectric body 1325 at all; or part of the wires 13261 embedded in the dielectric body 1325 can be exposed from at least one outer surface of the dielectric body 1325). Since the wire 13261 is embedded inside the dielectric body 1325 , it can prevent dust and moisture from contacting the wire 13261 and causing damage to the wire 13261 , thereby prolonging the service life of the motor 10 .
  • the conductive member 1326 may also include a conductive metal 13262. As shown in FIG.
  • the conductive metal 13262 is embedded in the inside of the dielectric body 1325, it can also prevent dust and moisture from contacting the conductive metal 13262 and causing damage to the conductive metal 13262, thereby prolonging the service life of the motor 10.
  • the drying device 100 includes the motor 10 and the casing 20 described in any one of the above-mentioned embodiments, and the motor 10 is accommodated in the casing 20. It should be noted that the drying device 100 may be a hair dryer, a dryer, a hand dryer, a body dryer or other drying devices for drying objects, which is not limited here. In the following embodiments, the drying device 100 is taken as an example for description.
  • an electrical connection assembly 13 (as shown in FIG. 1 ) for electrically connecting the stator 11 (as shown in FIG. 1 ) with external components is provided in the motor 10, and the electrical connection assembly
  • the second connecting plate 132 in 13 protrudes from the outside of the stator 11 across the air duct 111 . Since the opposite to the air duct 111 is not a flexible wire, but a second connecting plate 132 with a certain hardness, it can prevent the airflow in the air duct 111 from passing through the second connection while electrically connecting the stator 11 and the external components.
  • the plate 132 generates relatively large noise and vibration, and can also keep the position and state of the second connecting plate 132 in the air duct 111 unchanged. That is, the airflow in the second connecting plate 132 and the air duct 111 will not affect each other, which is beneficial to noise reduction and quality control of the motor 10 .
  • the housing 20 includes an outer shell 21 and an inner shell 22 .
  • the inner shell 22 is accommodated in the outer shell 21 , and the inner shell 22 and the outer shell 21 form a receiving cavity 23 .
  • the motor 10 is accommodated in the inner casing 22 , and the second connecting plate 132 of the motor 10 extends through the inner casing 22 into the receiving cavity 23 . In this way, the external components connected to the second connecting plate 132 can be disposed in the receiving cavity 23 .
  • the inner shell 22 of the housing 20 coincides with the outer cylinder 112 of the motor 10, that is, the outer cylinder 112 of the motor 10 can be used as the inner shell 22; or, the inner shell 22 and the outer shell of the motor 10
  • the cylinders 112 do not overlap, that is, the inner shell 22 of the housing 20 is sleeved outside the outer cylinder 112 of the motor 10 , which is not limited here.
  • the drying device 100 may further include a radiation source 30 for generating heat radiation to conduct heat conduction to the object to be dried.
  • the radiation source 30 is disposed in the housing cavity 23 and is staggered with the air duct 111 of the motor 10 .
  • the radiation source 30 can be arranged around the air duct 111 , and the radiation source 30 can also be arranged on one side of the air duct 111 .
  • the radiation source 30 includes but is not limited to at least one of halogen lamps, LEDs, ceramics, and graphene, which are not limited herein.
  • references to the terms “certain embodiments,” “one embodiment,” “some embodiments,” “examples,” “specific examples,” or “some examples” are intended to mean A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present application.
  • the schematic representations of the above terms are not necessarily directed to the same embodiment or example.
  • the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
  • those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • the features defined as “first” and “second” may explicitly or implicitly include at least one of said features.
  • the meaning of “plurality” is at least two, such as two, three, unless otherwise clearly and specifically defined.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

La présente invention concerne un moteur (10) et un dispositif de séchage (100). Le moteur (10) comprend un stator (11), un rotor (12) et un ensemble de connexion électrique (13). Le rotor (12) peut générer un flux d'air s'écoulant dans un canal d'air (111) du stator (11). L'ensemble de connexion électrique (13) comprend une première plaque de connexion (131) et une seconde plaque de connexion (132) qui sont connectées électriquement, la première plaque de connexion (131) est connectée électriquement au stator (11), et la seconde plaque de connexion (132) couvre le canal d'air (111) et s'étend hors du côté extérieur du stator (11).
PCT/CN2021/092882 2021-05-10 2021-05-10 Moteur et dispositif de séchage WO2022236630A1 (fr)

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PCT/CN2021/092882 WO2022236630A1 (fr) 2021-05-10 2021-05-10 Moteur et dispositif de séchage
CN202180004966.0A CN114287096A (zh) 2021-05-10 2021-05-10 电机及干燥装置

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PCT/CN2021/092882 WO2022236630A1 (fr) 2021-05-10 2021-05-10 Moteur et dispositif de séchage

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US20080219841A1 (en) * 2007-03-05 2008-09-11 Xcelaero Corporation Fan with strut-mounted electrical components
CN102287384A (zh) * 2010-06-17 2011-12-21 财团法人工业技术研究院 微型散热风扇
CN208063621U (zh) * 2017-03-01 2018-11-06 日本电产株式会社 基座单元、马达以及送风装置
CN111478501A (zh) * 2020-04-09 2020-07-31 深圳市精锐昌科技有限公司 高速电机及电吹风

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CN104810997B (zh) * 2015-04-15 2017-03-01 新疆金风科技股份有限公司 永磁直驱风力发电机系统及其密封协同干燥控制方法
CN210007527U (zh) * 2019-05-05 2020-01-31 南京德朔实业有限公司 电机及应用该电机的吹风机
CN110994905A (zh) * 2019-12-23 2020-04-10 佛山市南海区天洋电机制造有限公司 一种降噪电机
CN212163020U (zh) * 2020-04-09 2020-12-15 深圳市精锐昌科技有限公司 高速电机及电吹风

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080219841A1 (en) * 2007-03-05 2008-09-11 Xcelaero Corporation Fan with strut-mounted electrical components
CN102287384A (zh) * 2010-06-17 2011-12-21 财团法人工业技术研究院 微型散热风扇
CN208063621U (zh) * 2017-03-01 2018-11-06 日本电产株式会社 基座单元、马达以及送风装置
CN111478501A (zh) * 2020-04-09 2020-07-31 深圳市精锐昌科技有限公司 高速电机及电吹风

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