Search

CN-224218213-U - Cleaning device and drive assembly

CN224218213UCN 224218213 UCN224218213 UCN 224218213UCN-224218213-U

Abstract

The cleaning device comprises a shell component, a driving pump and an energy supply component, wherein one end of the shell component is detachably connected with the cleaning component, the interior of the shell component is divided into a power cavity and a liquid storage cavity through a partition piece, the driving component is arranged in the power cavity and is communicated with the liquid storage cavity, the driving component further comprises a stator component and a rotor component, the stator component 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 component comprises a driving shaft with a liquid flow channel and a magnetic piece which is fixed relative to the driving shaft and matched with the stator cores, and the driving pump is used for conveying liquid in the liquid storage cavity to the liquid flow channel. According to the cleaning equipment provided by the disclosure, the liquid flow channel is arranged in the driving shaft, so that the flushing integrated function of the cleaning equipment can be realized, and the cleaning efficiency is improved.

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 (17)

  1. 1. A cleaning apparatus, comprising: The cleaning device comprises a shell assembly (5), wherein one end of the shell assembly (5) is detachably connected with a cleaning assembly (2), and the interior of the shell assembly (5) is divided into a power chamber and a liquid storage chamber (15) through a partition piece; A drive assembly (1) disposed within the power chamber; A drive pump (12) communicating with the reservoir chamber (15); The drive assembly (1) further comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises at least one pair of magnetizable stator cores (121) which are uniformly distributed along the circumferential direction, each stator core (121) is provided with an exciting winding (122), the exciting windings (122) are configured to generate an alternating magnetic field in an electrified state, the rotor assembly comprises a driving shaft (111) with a liquid flow channel and a magnetic piece (112) which is fixed relative to the driving shaft (111) and matched with the stator cores (121), the driving pump (12) is used for conveying liquid in the liquid storage cavity (15) to the liquid flow channel, and the magnetic piece (112) is configured to make the rotor assembly perform reciprocating angular displacement motion around the rotation axis of the rotor assembly under the driving of the alternating magnetic field; The magnetic piece (112) comprises a first magnet (1121) and a second magnet (1122) which are circumferentially arranged around the driving shaft (111) and matched with the same stator core (121), wherein at least one part of the radial outer ends of the first magnet (1121) and the second magnet (1122) are curved bodies which are opposite in polarity and matched with the same stator core (121), the curved bodies are provided with first arc shapes which are outwards directed, one ends of the stator core (121) close to the first magnet (1121) and the second magnet (1122) are matched with the curved bodies and are provided with second arc shapes which are outwards directed, and the circle center angle corresponding to the second arc shapes is marked as theta, wherein the value range of theta is 70-100 degrees; -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 corresponding central angle of the first arc is denoted as β, wherein β has a value in the range of 45 ° to 80 °.
  3. 3. The cleaning apparatus according to claim 1, wherein in the same magnetic member (112), an angle between a center line of the first magnet (1121) and a center line of the second magnet (1122) is denoted as α, wherein α has a value in a range of 80 ° to 100 °.
  4. 4. A cleaning apparatus according to claim 1, wherein the projection of the first magnet (1121), the second magnet (1122) onto the center of the projection center in the radial direction thereof and the projection of the stator core (121) onto the center of the projection center in the radial direction thereof are always kept in at least partially overlapping states in the movement range of the rotor assembly reciprocating angular displacement with the rotation center of the rotor assembly as the projection center in a plane perpendicular to the rotation axis.
  5. 5. 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.
  6. 6. The cleaning apparatus of claim 5, 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.
  7. 7. The cleaning apparatus according to claim 1, characterized in that the stator assembly comprises magnetically permeable portions spaced apart from the stator core (121) in a circumferential direction, the magnetically permeable portions extending in a radial direction of the stator core (121) in a direction towards the magnetic member (112) and being configured to cooperate with the magnetic member (112).
  8. 8. The cleaning apparatus of claim 7, 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.
  9. 9. A cleaning apparatus according to claim 7, characterized in that the projection of the magnetic member (112) onto the center of the projection in the radial direction thereof and the projection of the magnetically conductive portion onto the center of the projection in the radial direction of the stator core (121) are always kept in an at least partially overlapping state in the range of motion of the rotor assembly in a reciprocating angular displacement with the center of rotation of the rotor assembly as the projection center in a plane perpendicular to the rotation axis.
  10. 10. The cleaning apparatus of claim 7, wherein the magnetically permeable portion includes a first magnetically permeable body (1231) located on one side of the stator core (121) for mating with the first magnet (1121), and a second magnetically permeable body (1232) located on the other side of the stator core (121) for mating with the second magnet (1122).
  11. 11. The cleaning apparatus of claim 10, wherein at least one plane is a symmetry plane in a plane containing a rotation axis of the rotor assembly, at least one pair of the stator cores (121) are disposed mirror symmetrically with respect to the symmetry plane, an X-axis is defined which is located in the symmetry plane and perpendicular to the rotation axis, wherein an angle between a center line of the first magnetic conductor (1231) and the X-axis, an angle between a center line of the second magnetic conductor (1232) and the X-axis is denoted as γ, and wherein γ has a value ranging from 10 ° to 40 °.
  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. The cleaning apparatus of claim 1, wherein the rotor assembly comprises a rotor core (113), the drive shaft (111) being configured to extend through the rotor core (113), a mounting slot being provided outside the rotor core (113), the magnetic member (112) being configured to fit within the mounting slot.
  15. 15. The cleaning apparatus of claim 14, wherein the first magnet (1121) and the second magnet (1122) each have an arc shape including a third arc shape distributed in a radial direction thereof and two side edges connecting respective ends of the first arc shape and the third arc shape, respectively, and the mounting groove is configured to fit the first magnet (1121) and the second magnet (1122).
  16. 16. A cleaning apparatus 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 in communication with the fluid flow path of the drive shaft (111).
  17. 17. A drive assembly (1), characterized by comprising: 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) having a flow channel and a magnetic member (112) fixed relative to the drive shaft (111) and cooperating with the stator core (121), the magnetic member (112) being configured to reciprocate the rotor assembly about its rotational axis with an alternating magnetic field; The magnetic piece (112) comprises a first magnet (1121) and a second magnet (1122) which are circumferentially arranged around the driving shaft (111) and matched with the same stator core (121), at least one part of the radial outer ends of the first magnet (1121) and the second magnet (1122) are bent bodies which are opposite in polarity and matched with the same stator core (121), the bent bodies are provided with first arc shapes which are outwards directed, one ends of the stator core (121) close to the first magnet (1121) and the second magnet (1122) are matched with the bent bodies and are provided with second arc shapes which are outwards directed, and the circle center angle corresponding to the second arc shapes is recorded as theta, wherein the value of theta ranges from 70 degrees to 100 degrees.

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 the field of oral care, motorized cleaning devices are becoming mainstream for efficient cleaning capability. The core motor driving system can realize the compound motion modes of vibration, multidimensional swing and the like of the brush head through precise control, and effectively eliminates dental plaque and interdental residues by matching with bristle design, and the cleaning efficiency is obviously superior to that of the traditional manual mode. In the existing cleaning equipment, the mechanical friction of the brush head is difficult to effectively remove stubborn residues in hidden areas such as interdental areas, gingival furrows and the like, and especially for dental plaque with strong adhesiveness and food impaction, the surface cleaning can be realized only by repeatedly brushing, and the cleaning coverage rate is insufficient. 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 cleaning device comprises a shell assembly, a cleaning assembly and a liquid storage assembly, wherein one end of the shell assembly is detachably connected with the cleaning assembly, and the interior of the shell assembly is divided into a power chamber and a liquid storage chamber through a partition piece; A drive assembly disposed within the power chamber; A drive pump in communication with the reservoir chamber; The driving assembly further comprises a stator assembly and a rotor 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 with a liquid flow channel and a magnetic part which is fixed relative to the driving shaft and matched with the stator cores, the driving pump is used for conveying liquid in the liquid storage cavity to the liquid flow channel, and the magnetic part is configured to make the rotor assembly perform reciprocating angular displacement motion around the rotation axis of the rotor assembly under the driving of the alternating magnetic field; The magnetic piece comprises a first magnet and a second magnet which are circumferentially arranged around the driving shaft and matched with the same stator core, wherein 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 matched with the same stator core, the curved bodies are provided with first arcs which are directed outwards, one ends of the stator core, which are close to the first magnet and the second magnet, are matched with the curved bodies and are provided with second arcs which are directed outwards, and the central angle corresponding to the second arcs is recorded as theta, wherein the value range of theta is 70-100 degrees; An energizing assembly configured to energize the field winding with an electrical signal. In one embodiment of the present disclosure, the central angle of the first arc is denoted as β, where β has a value ranging from 45 ° to 80 °. In one embodiment of the present disclosure, in the same magnetic member, an included angle between a center line of the first magnet and a center line of the second magnet is denoted as α, where α has a value ranging from 80 ° to 100 °. In one embodiment of the present disclosure, in a plane perpendicular to the rotation axis, with the rotation center of the rotor assembly as a projection center, the projection of the first magnet, the second magnet toward the center on the projection center in the radial direction thereof and the projection of the stator core toward the center on the projection center in the radial direction thereof are always kept in at least partially overlapped states in the movement range of the reciprocating angular displacement of the rotor assembly. 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