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CN-224218212-U - Cleaning device and drive assembly

CN224218212UCN 224218212 UCN224218212 UCN 224218212UCN-224218212-U

Abstract

The invention relates to cleaning equipment and a driving assembly, wherein the cleaning equipment comprises the driving assembly, the cleaning assembly and an energy supply assembly, the driving assembly comprises a rotor assembly and a stator assembly, the rotor assembly comprises a first magnet and a second magnet, at least one part of the radial outer ends of the first magnet and the second magnet are curved bodies which are opposite in polarity and are matched with the same stator core, the curved bodies are provided with first arcs which are outwards directed, X axes which are positioned in symmetrical planes and are perpendicular to a rotation axis are defined, an included angle between the central line of the first magnetizer and the X axes, an angle between the central line of the second magnetizer and the X axes are marked as gamma, a central angle corresponding to the first arcs is marked as beta, and the gamma and the beta satisfy the following relation that gamma/beta is more than or equal to 0.125 and less than or equal to 0.89. According to the cleaning equipment provided by the disclosure, the effective acting area of the magnetic field is increased and the magnetic leakage phenomenon is reduced by optimizing the matching angle of the magnetizer and the magnet, so that the energy utilization rate of the magnetic field is improved, and the output torque of the driving assembly is enhanced.

Inventors

  • XIE YI
  • LI ZHOUJIAN
  • LI YANQIANG
  • ZENG MENGWEI

Assignees

  • 深圳素士科技股份有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (16)

  1. 1. A cleaning apparatus, comprising: A drive assembly (1) comprising a rotor assembly and a stator assembly, the stator assembly comprising at least one pair of magnetizable stator cores (121) evenly distributed in a circumferential direction, and each stator core (121) being provided with an excitation winding (122), the excitation windings (122) being configured to generate an alternating magnetic field in an energized state, the rotor assembly comprising a drive shaft (111) and a magnet (112) fixed relative to the drive shaft (111) and cooperating with the stator cores (121), the magnet (112) comprising a first magnet (1121) circumferentially arranged around the drive shaft (111) and cooperating with the same stator core (121), a second magnet (1122), the first magnet (1121), the second magnet (1122) being of opposite polarity on the side facing the stator core (121), at least a portion of the radially outer ends of the first magnet (1121), the second magnet (1122) being of opposite polarity and cooperating with the same stator core (121), the magnet (112) having a first outwardly directed magnetically conductive member, the magnet (1121) also comprising a first magnetically conductive member circumferentially arranged around the drive shaft (111) and cooperating with the first magnet (1122) at a distance of the first magnetically conductive member (1231) for magnetically conducting with the first magnet (1122) and the second magnet (1122); defining an X-axis in the plane of symmetry and perpendicular to the axis of rotation, at least one pair of stator cores (121) being configured to be symmetrically distributed with respect to the X-axis; The included angle between the central line of the first magnetizer (1231) and the X axis and the included angle between the central line of the second magnetizer (1232) and the X axis are marked as gamma, the central angle corresponding to the first arc is marked as beta, and the following relation between gamma and beta is satisfied, wherein gamma/beta is more than or equal to 0.125 and less than or equal to 0.89; A cleaning assembly (2) coupled to the drive assembly (1); -an energizing assembly (3), the energizing assembly (3) being configured to energize the excitation winding (122) by an electrical signal.
  2. 2. The cleaning apparatus of claim 1, wherein the relationship between γ and β satisfies 0.22≤γ/β≤0.5.
  3. 3. The cleaning apparatus of claim 1, wherein γ has a value in the range of 10 ° to 40 °.
  4. 4. The cleaning apparatus of claim 1, wherein β has a value in the range of 45 ° to 80 °.
  5. 5. The cleaning apparatus of claim 1, wherein an angle between a centerline of the first magnet (1121) and the X-axis is noted Ω, wherein Ω ranges from 45 ° to 50 °, and an angle between a centerline of the second magnet (1122) and the X-axis is noted Ω, wherein Ω ranges from 45 ° to 50 °.
  6. 6. A cleaning apparatus according to claim 1, characterized in that the angle between the line segment from the outermost edge of the stator core (121) to the centre of the rotor assembly and the X-axis is denoted as Φ, wherein Φ has a value in the range of 40 ° to 55 °.
  7. 7. The cleaning apparatus of claim 1, wherein the curved body has an inwardly directed third arc and two sides connecting respective ends of the first arc and the third arc, respectively, and wherein the first arc and the third arc have the same angle as a central angle corresponding to each other.
  8. 8. The cleaning apparatus of claim 7, wherein an air gap width between the first arc of the first magnet (1121), the second magnet (1122) and an end of the stator core (121) facing the magnetic member (112) is denoted as d, wherein d has a value ranging from 0.15 mm to 0.5 mm.
  9. 9. The cleaning apparatus according to claim 7, wherein one end of the stator core (121) close to the first magnet (1121) and one end of the second magnet (1122) are matched with the curved body, and have a second arc shape pointing outwards, and a central angle corresponding to the second arc shape is denoted as θ, wherein the value of θ ranges from 70 ° to 100 °.
  10. 10. The cleaning apparatus of claim 1, wherein the rotor assembly has an equilibrium position in which it cooperates with the stator core (121) and an unbalanced position in which it is offset from the stator core (121), and wherein the magnetic member (112) is configured to deflect by a predetermined angle about a center of rotation of the rotor assembly in a plane perpendicular to the axis of rotation so that its projection radially toward the center of projection at least partially overlaps the magnetically permeable portion.
  11. 11. A cleaning device according to claim 1, further comprising a transmission assembly (4), one end of the transmission assembly (4) being releasably connected to the cleaning assembly (2) and the other end being connected to the drive shaft (111).
  12. 12. A cleaning device according to claim 1, characterized in that the frequency of the drive assembly (1) in the operating state is in the range of 100 hz to 180 hz.
  13. 13. A cleaning apparatus according to claim 1, characterized in that the unidirectional rotation angle of the drive shaft (111) with respect to the stator core (121) is 0 ° to 30 °.
  14. 14. A cleaning apparatus, comprising: A drive assembly (1) comprising a rotor assembly and a stator assembly, the stator assembly comprising at least one pair of magnetizable stator cores (121) evenly distributed in a circumferential direction, and each stator core (121) being provided with an excitation winding (122), the excitation windings (122) being configured to generate an alternating magnetic field in an energized state, the rotor assembly comprising a drive shaft (111) with a flow channel and a magnetic member (112) fixed relative to the drive shaft (111) and cooperating with the stator cores (121), the magnetic member (112) comprising a first magnet (1121) circumferentially arranged around the drive shaft (111) and cooperating with the same stator core (121), a second magnet (1122) with a polarity opposite to the polarity of one side of the stator core (121), the first magnet (1121), the second magnet (1122) being at least partially of opposite polarity and cooperating with the same stator core (121), the curved member having an outwardly directed first magnet (1121), the first magnet (1122) facing the first magnet (1121) and the second magnet (1122) being arranged in a magnetically conductive manner spaced apart from the first magnet (1231) and the second magnet (1122); defining an X-axis in the plane of symmetry and perpendicular to the axis of rotation, at least one pair of stator cores (121) being configured to be symmetrically distributed with respect to the X-axis; The included angle between the central line of the first magnetizer (1231) and the X axis and the included angle between the central line of the second magnetizer (1232) and the X axis are marked as gamma, the central angle corresponding to the first arc is marked as beta, and the following relation between gamma and beta is satisfied, wherein gamma/beta is more than or equal to 0.125 and less than or equal to 0.89; A cleaning assembly (2) coupled to the drive assembly (1); -an energizing assembly (3), the energizing assembly (3) being configured to energize the excitation winding (122) by an electrical signal.
  15. 15. The cleaning apparatus according to claim 14, further comprising a drive pump in communication with the flow channel, the drive pump being configured to pump cleaning liquid into the cleaning assembly (2) through the flow channel.
  16. 16. A drive assembly (1), characterized in that the drive assembly (1) comprises: A stator assembly comprising at least one pair of magnetizable stator cores (121) uniformly distributed in a circumferential direction, and each stator core (121) being provided with an excitation winding (122), the excitation windings (122) being configured to generate an alternating magnetic field in an energized state; A rotor assembly comprising a drive shaft (111) and a magnetic member (112) fixed relative to the drive shaft (111) and engaged with the stator core (121), the magnetic member (112) comprising a first magnet (1121) and a second magnet (1122) circumferentially arranged around the drive shaft (111) and engaged with the same stator core (121), the first magnet (1121) and the second magnet (1122) being opposite in polarity on a side facing the stator core (121), at least a portion of the radially outer ends of the first magnet (1121) and the second magnet (1122) being curved bodies of opposite polarity and engaged with the same stator core (121), the curved bodies having a first arc shape directed outward, the stator assembly further comprising first magnetic conductors (1231) for engaging with the first magnet (1121) and second magnetic conductors (1232) for engaging with the second magnet (1122) spaced apart in a circumferential direction; defining an X-axis in the plane of symmetry and perpendicular to the axis of rotation, at least one pair of stator cores (121) being configured to be symmetrically distributed with respect to the X-axis; the included angle between the central line of the first magnetizer (1231) and the X axis and the included angle between the central line of the second magnetizer (1232) and the X axis are marked as gamma, the central angle corresponding to the first arc is marked as beta, and the relationship between gamma and beta is 0.125-gamma/beta-0.89.

Description

Cleaning device and drive assembly Technical Field The present disclosure relates to the field of oral cleaning devices, and more particularly, to a cleaning device and a drive assembly. Background In oral cleaning devices, the motor serves as a core component and serves the critical function of driving the brush head in motion. Through the accurate control of the motor, the brush head can realize the vibration or the swing of a specific mode, so that dental plaque and food residues on the tooth surface can be effectively removed, and a better cleaning effect is provided compared with the traditional manual toothbrush. In the prior art, the cooperative mechanism of the motor structure and the brush head movement is a key factor influencing the performance of equipment, and the performance of the motor determines the vibration frequency and amplitude of the brush head and influences the cleaning effect. Optimizing the motor configuration can promote user experience. Disclosure of utility model In view of the above, the embodiments of the present disclosure provide a cleaning apparatus and a driving assembly to solve the technical drawbacks of the prior art. In order to achieve the above purpose, the present disclosure adopts the following technical scheme: According to a first aspect of the present disclosure, there is provided a cleaning apparatus comprising: The driving assembly comprises a rotor assembly and a stator assembly, wherein the stator assembly comprises at least one pair of magnetizable stator cores which are uniformly distributed along the circumferential direction, each stator core is provided with an excitation winding, the excitation windings are configured to generate an alternating magnetic field in an electrified state, the rotor assembly comprises a driving shaft and a magnetic part which is fixed relative to the driving shaft and matched with the stator cores, the magnetic part comprises a first magnet and a second magnet which are circumferentially arranged around the driving shaft and matched with the same stator core, the polarities of the first magnet and the second magnet facing one side of the stator core are opposite, at least one part of the radial outer ends of the first magnet and the second magnet are curved bodies which have opposite polarities and are matched with the same stator core, and the curved bodies are provided with first arc shapes which are outwards directed; Defining an X-axis in the plane of symmetry and perpendicular to the axis of rotation, at least one pair of stator cores being configured to be symmetrically distributed with respect to the X-axis; The included angle between the central line of the first magnetizer and the X axis and the included angle between the central line of the second magnetizer and the X axis are marked as gamma, the central angle corresponding to the first arc is marked as beta, and the relationship between gamma and beta is 0.125-gamma/beta-0.89; A cleaning assembly coupled to the drive assembly; An energizing assembly configured to energize the field winding with an electrical signal. In one embodiment of the present disclosure, wherein the relationship between γ and β satisfies 0.22≤γ/β≤0.5. In one embodiment of the present disclosure, wherein γ has a value in the range of 10 ° to 40 °. In one embodiment of the present disclosure, wherein β has a value in the range of 45 ° to 80 °. In one embodiment of the present disclosure, an included angle between a center line of the first magnet and the X axis is denoted as Ω, wherein Ω takes a value in a range of 45 ° to 50 °, and an included angle between a center line of the second magnet and the X axis is denoted as Ω, wherein Ω takes a value in a range of 45 ° to 50 °. In one embodiment of the present disclosure, the angle between the line segment from the outermost edge of the stator core to the center of the rotor assembly and the X axis is noted as Φ, wherein Φ has a value ranging from 40 ° to 55 °. In one embodiment of the disclosure, the curved body has a third arc directed inwards, and two sides respectively connecting two ends of the first arc and the third arc, wherein the angles of central angles corresponding to the first arc and the third arc are the same. In one embodiment of the present disclosure, the width of the air gap between the first arc of the first magnet and the second magnet and the end of the stator core facing the magnetic member is denoted as d, where d has a value ranging from 0.15 mm to 0.5 mm. In one embodiment of the disclosure, one end of the stator core, which is close to the first magnet and the second magnet, is matched with the curved body, and is provided with a second arc which points outwards, and the central angle corresponding to the second arc is recorded as theta, wherein the value of theta ranges from 70 degrees to 100 degrees. In one embodiment of the present disclosure, the rotor assembly has a balanced position cooperating with the stator