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CN-117307505-B - Dust collector motor and dust collector

CN117307505BCN 117307505 BCN117307505 BCN 117307505BCN-117307505-B

Abstract

The invention relates to a dust collector motor and a dust collector. The motor of the dust collector comprises a movable impeller and a fixed impeller assembly which are coaxially arranged, wherein the movable impeller is positioned at the upstream of the fixed impeller assembly along the airflow flowing direction, the fixed impeller assembly comprises a plurality of fixed impellers which are coaxially arranged, and each fixed impeller comprises a wheel body and a plurality of blades which are arranged along the circumferential outer surface of the wheel body. The blades in each fixed impeller are arranged in a one-to-one correspondence manner, the front edges and the rear edges of two corresponding blades in any two adjacent fixed impellers are connected, so that the corresponding blades in a plurality of fixed impellers form a continuous combined blade, a fluid channel for guiding flow is formed between any two adjacent combined blades, wherein the profile of at least one combined blade is provided with a turbulence structure, and the pressure distribution of the fluid channel at different positions in the airflow flowing direction is layered. The dust collector motor and the dust collector have smaller noise.

Inventors

  • LI CAIMING
  • WANG CHAOQUN
  • LUO YONG

Assignees

  • 莱克电气股份有限公司
  • 江苏莱克智能电器有限公司

Dates

Publication Date
20260512
Application Date
20220620

Claims (20)

  1. 1. A vacuum cleaner motor comprising a coaxially arranged moving impeller (210) and a stationary impeller assembly (100), said moving impeller (210) being located upstream of said stationary impeller assembly (100) in the direction of airflow; The stator wheel assembly (100) includes a plurality of stator wheels (10) coaxially arranged, each stator wheel (10) including a wheel body (11) and a plurality of blades (12) disposed along an outer surface in a circumferential direction of the wheel body (11), each blade (12) including a root portion fixed to the wheel body (11), a tip portion spaced apart from the wheel body (11), a leading edge (121) extending between the root portion and the tip portion, and a trailing edge (122) extending between the root portion and the tip portion; The blades (12) in each fixed impeller (10) are arranged in a one-to-one correspondence manner, the front edges (121) and the rear edges (122) of two corresponding blades (12) in any two adjacent fixed impellers (10) are connected, so that the corresponding blades (12) in a plurality of fixed impellers (10) form a continuous combined blade (110), and a fluid channel (120) for guiding flow is formed between any two adjacent combined blades (110); wherein, turbulence structures (60) are arranged on the molded surface of at least one combined blade (110) so as to enable pressure distribution of the fluid channel (120) at different positions in the airflow flowing direction to be layered.
  2. 2. The vacuum cleaner motor according to claim 1, wherein the turbulence structure (60) is configured as a concave or convex structure formed on the profile of the composite blade (110); And/or The turbulence structure (60) is positioned at the boundary position of two adjacent blades (12) forming the same combined blade (110).
  3. 3. The vacuum cleaner motor according to claim 1, wherein a plurality of the stationary impellers (10) are arranged offset in the axial direction of the stationary impeller assembly (100) to form a stepped structure on the inner wall of the fluid passage (120), the stepped structure forming the turbulence structure (60).
  4. 4. A vacuum cleaner motor according to claim 1, characterized in that the leading edge (121) of each blade (12) is located in front of the trailing edge (122) in the circumferential direction of the wheel body (11); The projections of two adjacent vanes (12) of each stator vane (10) in a plane perpendicular to the axial direction of the stator vane assembly (100) do not overlap each other.
  5. 5. A vacuum cleaner motor according to claim 1, wherein one of the two fixed impellers (10) is provided with a locking portion (13), and the other fixed impeller (10) is provided with a locking mating portion (14) which is locked with the locking portion (13), so as to restrict the movement of the two fixed impellers (10) adjacent to each other in the axial direction of the fixed impeller assembly.
  6. 6. A vacuum cleaner motor according to claim 5, characterized in that the wheel body (11) is constructed as a ring-shaped element; Each fixed impeller (10) further comprises an annular cover (16) coaxially sleeved on the wheel body (11) along the circumferential outer side, and the top parts (124) of the blades (12) are connected with the annular cover (16); the wheel bodies (11) of the fixed impellers (10) are connected with each other to form a diversion inner ring (150), and the annular covers (16) of the fixed impellers (10) are connected with each other to form a diversion outer ring (160); The combined blades (110) are positioned between the diversion inner ring (150) and the diversion outer ring (160), and any two adjacent combined blades (110), the diversion inner ring (150) and the diversion outer ring (160) jointly define the fluid channel (120).
  7. 7. The vacuum cleaner motor according to claim 6, wherein the annular cover (16) of the stationary impeller (10), the wheel body (11) and the blades (12) connected between the annular cover (16) and the wheel body (11) are integrally formed, and made of PA66+30% gf.
  8. 8. The vacuum cleaner motor of claim 6, wherein each of the blades has a thickness of 1mm to 5mm.
  9. 9. The vacuum cleaner motor according to claim 6, wherein, in any two adjacent fixed impellers (10), the engaging portion (13) is provided on an inner side surface of the wheel body (11) of one fixed impeller (10) in a radial direction, and the engaging portion (14) is provided on the other fixed impeller (10) and extends to an inner side surface of the wheel body (11) of the one fixed impeller (10) in a radial direction to engage with the engaging portion (13).
  10. 10. The vacuum cleaner motor according to claim 9, wherein the engaging portion (13) is configured as a hook member, and the engaging portion (14) is provided with an engaging groove (141) for engaging the engaging portion (13).
  11. 11. A vacuum cleaner motor according to claim 6, characterized in that the number of stationary impellers (10) is two; defining the fixed impeller located upstream in the airflow direction as a first fixed impeller (20), and defining the fixed impeller located downstream in the airflow direction as a second fixed impeller (30); The annular cover (22) of the first fixed impeller and the wheel body (21) of the first fixed impeller are respectively provided with a first matching part (221) and a second matching part (211) which extend towards the second fixed impeller (30) and are annular, and the annular cover (32) of the second fixed impeller and the wheel body (31) of the second fixed impeller are respectively provided with a third matching part (222) and a fourth matching part (212) which extend towards the first fixed impeller (20) and are annular; wherein the first fitting portion (221) and the third fitting portion (222) are in contact with each other, and the second fitting portion (211) and the fourth fitting portion (212) are in contact with each other.
  12. 12. The vacuum cleaner motor according to claim 11, wherein an inner side surface of the first engaging portion (221) in a radial direction of the stator assembly (100) is engaged with an outer side surface of the third engaging portion (222) in a radial direction of the stator assembly (100) in an abutting manner; The outer side surface of the second matching part (211) along the radial direction of the fixed impeller assembly (100) is in abutting matching with the inner side surface of the fourth matching part (212) along the radial direction of the fixed impeller assembly (100).
  13. 13. The vacuum cleaner motor according to claim 11, wherein an inner side surface of the first fitting portion (221) in a radial direction of the stator assembly (100), an outer side surface of the third fitting portion (222) in a radial direction of the stator assembly (100) are configured as conical surfaces that match each other; an outer side surface of the second fitting portion (211) along the radial direction of the stator wheel assembly (100) and an inner side surface of the fourth fitting portion (212) along the radial direction of the stator wheel assembly (100) are configured as conical surfaces matched with each other; Defining an inner side surface of the first matching part (221) along the radial direction of the fixed impeller assembly (100), and a distance between the inner side surface of the second matching part (211) along the radial direction of the fixed impeller assembly (100) as d; the distance d gradually increases in the direction of flow of the air stream.
  14. 14. The vacuum cleaner motor according to claim 11, wherein a first bearing portion (2211) is provided on the annular cover (22) of the first stationary impeller, the first bearing portion (2211) being adapted to abut against the third mating portion (222) when the first mating portion (221) and the third mating portion (222) are mated; A second bearing part (2111) is arranged on the wheel body (21) of the first fixed impeller, and the second bearing part (2111) is used for abutting against the fourth matching part (212) when the second matching part (211) and the fourth matching part (212) are matched, and/or A third bearing part (321) is arranged on the annular cover (32) of the second fixed impeller, and the third bearing part (321) is used for abutting against the first matching part (221) when the first matching part (221) and the third matching part (222) are matched; A fourth bearing part (311) is arranged on the wheel body (31) of the second fixed impeller, and the fourth bearing part (311) is used for abutting against the second matching part (211) when the second matching part (211) and the fourth matching part (212) are matched.
  15. 15. The vacuum cleaner motor according to any one of claims 11-14, wherein one of the first stator impeller (20) and the second stator impeller (30) is provided with a positioning column (23), and the other one is provided with a positioning groove (24) matched with the positioning column (23); The positioning post (23) is inserted into the positioning groove (24) when the first fitting portion (221) and the third fitting portion (222) are in contact with each other, and the second fitting portion (211) and the fourth fitting portion (212) are in contact with each other.
  16. 16. A vacuum cleaner motor according to any one of claims 12-14, wherein the annular shroud (22) of the first stator is provided with a snap-on structure (40) on the radially outer side.
  17. 17. The vacuum cleaner motor according to any one of claims 11 to 14, wherein a base body (42) is provided at an upstream side end face of the wheel body (21) of the first fixed impeller (20); The stator impeller assembly (100) further comprises a baffle plate (50) arranged on the base body (42), wherein the baffle plate (50) is in an annular structure and is blocked on the radial inner side of the flow guiding inner ring (150).
  18. 18. The vacuum cleaner motor of any one of claims 1 to 14, wherein each of the composite blades (110) is configured to have a wing shape, and a leading edge (1101) of the composite blade is upstream in an airflow direction relative to a trailing edge (1102) of the composite blade.
  19. 19. The vacuum cleaner motor according to any one of claims 1-14, wherein the thickness of all the blades (12) in the stator assembly (100) is the same.
  20. 20. The vacuum cleaner motor according to any one of claims 1 to 14, wherein in a projection of the stator assembly (100) on a first plane, the projections of two adjacent combined blades (110) have an overlap area (130), wherein the first plane is perpendicular to an axial direction of the stator assembly (100).

Description

Dust collector motor and dust collector Technical Field The invention relates to the technical field of dust collectors, in particular to a dust collector motor and a dust collector. Background With the improvement of life quality, the use of dust collectors is more and more common, and the dust collector motor is the heart of the dust collector. The fan part of the dust collector motor can comprise a fixed impeller and a movable impeller which are coaxially arranged, and the main function of the fixed impeller is to enable the wind flow generated by the movable impeller to be released more effectively. The stator impeller in the related art may generally include an outer ring, an inner ring disposed inside the outer ring, and a plurality of blades connected between the outer ring and the inner ring. Wherein each blade is arranged on the outer side of the inner ring in a spiral manner so as to form an air guide channel between the adjacent blades. However, eddy currents are easily generated in the air guide channel of the related art, and the eddy currents are accumulated in the fixed impeller, so that vibration noise and eddy current noise of the fan are easily caused, and the dust collection motor of the related art is relatively high in noise. Disclosure of Invention Accordingly, it is necessary to provide a cleaner motor and a cleaner with less noise, which solve the problem of the prior art that the cleaner motor has a large noise. A first aspect of an embodiment of the present application provides a vacuum cleaner motor, including a movable impeller and a stationary impeller assembly coaxially disposed, the movable impeller being located upstream of the stationary impeller assembly in a direction of airflow; The stator wheel assembly includes a plurality of stator wheels coaxially arranged, each stator wheel including a wheel body and a plurality of blades disposed along an outer surface of the wheel body in a circumferential direction, each blade including a root portion secured to the wheel body, a tip portion spaced apart from the wheel body, a leading edge extending between the root portion and the tip portion, and a trailing edge extending between the root portion and the tip portion; The blades in each fixed impeller are arranged in a one-to-one correspondence manner, and the front edges and the rear edges of the two corresponding blades in any two adjacent fixed impellers are connected, so that the corresponding blades in a plurality of fixed impellers form a continuous combined blade, and a fluid channel for guiding flow is formed between any two adjacent combined blades; wherein, the profile of at least one combination blade is provided with a turbulence structure so as to lead the pressure distribution of the fluid channel at different positions in the airflow flowing direction to be layered. In one of the embodiments, the spoiler structure is configured as a concave or convex structure formed on the profile of the composite blade; And/or The turbulence structure is positioned at the juncture of two adjacent blades forming the same combined blade. In one embodiment, the plurality of stator vanes are arranged in a staggered manner in the axial direction of the stator vane assembly so as to form a stepped structure on the inner wall of the fluid channel, and the stepped structure forms a turbulence structure. In one embodiment, the leading edge of each blade is located forward of the trailing edge in the circumferential direction of the wheel body; The projections of two adjacent blades of each fixed impeller in a plane perpendicular to the axial direction of the fixed impeller assembly do not overlap each other. In one embodiment, in any two adjacent fixed impellers, one fixed impeller is provided with a clamping part, and the other fixed impeller is provided with a clamping matching part clamped with the clamping part so as to limit the movement of the two adjacent fixed impellers along the axial direction of the fixed impeller assembly. In one embodiment, the wheel body is configured as a ring; Each certain impeller further comprises an annular cover coaxially sleeved on the circumferential outer side of the wheel body, and the tops of the blades are connected with the annular cover; The wheel bodies of the fixed impellers are connected with each other to form a diversion inner ring, and the annular covers of the fixed impellers are connected with each other to form a diversion outer ring; the combined blades are positioned between the flow guiding inner ring and the flow guiding outer ring, and any two adjacent combined blades, the flow guiding inner ring and the flow guiding outer ring jointly define a fluid channel. In one embodiment, the annular shroud of the stator, the wheel body, and the vanes connected between the annular shroud and the wheel body are integrally formed, and are made of PA66+30% GF. In one embodiment, each blade has a thickness of 1mm to 5mm. In one embodiment, in an