CN213787165U - Brushless motor of dust collector - Google Patents
Brushless motor of dust collector Download PDFInfo
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- CN213787165U CN213787165U CN202022481893.XU CN202022481893U CN213787165U CN 213787165 U CN213787165 U CN 213787165U CN 202022481893 U CN202022481893 U CN 202022481893U CN 213787165 U CN213787165 U CN 213787165U
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- motor
- centrifugal impeller
- brushless motor
- rotor assembly
- vacuum cleaner
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Abstract
The utility model discloses a dust catcher brushless motor, include: the fan mechanism comprises a blade diffuser, a centrifugal impeller and a fan cover, wherein the blade diffuser is used for guiding airflow flowing out of the centrifugal impeller, the centrifugal impeller comprises an air inlet, the fan cover comprises a bent part, a backflow groove is formed in the inner wall of the bent part, and the air inlet is positioned in the backflow groove; the motor mechanism comprises a rotor assembly, and the rotor assembly is connected with the centrifugal impeller; and the control board is used for controlling the motor mechanism. The control panel is used for controlling the motor mechanism, the rotor assembly enables the centrifugal impeller to rotate, the axial air inlet and the radial air outlet of the centrifugal impeller form dust absorption air flow, the blade diffuser guides the air flow flowing out of the centrifugal impeller, the flow loss of the air flow is small, and the working efficiency of the motor can be improved; backflow airflow exists in the centrifugal impeller, and part of the backflow airflow reenters the centrifugal impeller under the action of the backflow groove, so that the suction force of the motor is enhanced, and the working efficiency of the motor is improved.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to dust catcher brushless motor.
Background
The dust collector drives the blades to rotate at a high speed by using a motor, and generates air negative pressure in the sealed shell to absorb dust.
At present, the dust collection airflow of the dust collector motor in the market is not effectively guided, the airflow flowing loss is large, and the working efficiency of the motor is low; the suction force of the motor of the dust collector is small and the working efficiency of the motor is low because the backflow airflow is not utilized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a dust catcher brushless motor, can reduce the flow loss of air current and the suction of reinforcing motor, improve the work efficiency of motor.
The utility model provides a solution of its technical problem is:
a brushless motor for a cleaner, comprising: the fan mechanism comprises a blade diffuser, a centrifugal impeller and a fan cover, wherein the centrifugal impeller is arranged above the blade diffuser, the blade diffuser is used for guiding airflow flowing out of the centrifugal impeller, the fan cover is arranged above the centrifugal impeller, the centrifugal impeller comprises an air inlet, the fan cover comprises a bent part, a backflow groove is formed in the inner wall of the bent part, and the air inlet is positioned in the backflow groove; the motor mechanism comprises a rotor assembly, and the rotor assembly is connected with the centrifugal impeller; and the control board is used for controlling the motor mechanism.
The brushless motor of the dust collector at least has the following beneficial effects:
the control panel is used for controlling the motor mechanism, the rotor assembly enables the centrifugal impeller to rotate, the axial air inlet and the radial air outlet of the centrifugal impeller form dust absorption air flow, the blade diffuser guides the air flow flowing out of the centrifugal impeller, the flow loss of the air flow is small, and the working efficiency of the motor can be improved; backflow airflow exists in the centrifugal impeller, and part of the backflow airflow reenters the centrifugal impeller under the action of the backflow groove, so that the suction force of the motor is enhanced, and the working efficiency of the motor is improved.
As a further improvement of the above technical solution, the bent portion is formed with a flow converging opening, and an inner diameter of the flow converging opening is 0.5mm to 2mm smaller than an inner diameter of the air inlet.
As a further improvement of the technical scheme, the thickness of the wind shield is 1-5 mm.
As a further improvement of the above technical solution, the motor mechanism further includes a motor base, and the rotor assembly is disposed above the motor base.
As a further improvement of the technical scheme, the control board is fixed at the bottom of the motor base.
As a further improvement of the above technical solution, the motor base is made of aluminum or aluminum alloy.
As a further improvement of the above technical solution, the vane diffuser includes an inner support body, a flow guiding body and an outer housing body which are sequentially connected along a radial direction of the vane diffuser, and the rotor assembly includes a shaft core, and the shaft core is connected with the inner support body through a bearing.
As a further improvement of the above technical solution, the centrifugal impeller is disposed above the inner support body, and the fan housing is connected to the outer housing.
As a further improvement of the above technical solution, the motor mechanism further includes a stator assembly disposed outside the rotor assembly.
As a further improvement of the above technical solution, an outer diameter of the motor mechanism is smaller than an outer diameter of the vane diffuser.
Drawings
The utility model is further explained with the attached drawings and the embodiments;
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic cross-sectional view of the present invention;
fig. 3 is an exploded view of the present invention;
fig. 4 is a schematic partial cross-sectional view of the present invention;
FIG. 5 is a schematic structural view of a vane diffuser according to the present invention;
reference numbers in the figures:
100-a fan mechanism, 110-a blade diffuser, 111-an inner support body, 112-a flow guide body, 113-an outer shell, 120-a centrifugal impeller, 121-an air inlet, 130-an air cover, 131-a bent part, 132-a backflow groove, 133-a converging port, 200-a motor mechanism, 210-a rotor assembly, 211-a shaft core, 220-a motor base, 230-a stator assembly and 300-a control panel.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, electric connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In some embodiments of the present invention, as shown in fig. 1 to 4, a brushless motor for a vacuum cleaner includes:
the fan mechanism 100 includes a blade diffuser 110, a centrifugal impeller 120 and a fan cover 130, the centrifugal impeller 120 is disposed above the blade diffuser 110, the fan cover 130 is disposed above the centrifugal impeller 120, the blade diffuser 110 is used for guiding an airflow flowing out of the centrifugal impeller 120, the centrifugal impeller 120 includes an air inlet 121, the fan cover 130 includes a bent portion 131, a backflow groove 132 is formed on an inner wall of the bent portion 131, and the air inlet 121 is located in the backflow groove 132;
a motor mechanism 200 including a rotor assembly 210, the rotor assembly 210 being connected to the centrifugal impeller 120;
and a control board 300 for controlling the motor mechanism 200.
In the above embodiment, the control board 300 is used to control the motor mechanism 200, the rotor assembly 210 rotates the centrifugal impeller 120, the centrifugal impeller 120 rotates to form a dust-collecting airflow, the axial air of the centrifugal impeller 120 enters the blade diffuser 110 and radial air exits, the airflow flowing out of the centrifugal impeller 120 enters the blade diffuser 110, and the airflow flows in the blade diffuser 110 according to the blade direction, so the airflow flowing condition is good, the flow loss is small, and the working efficiency of the motor can be improved; the backflow airflow exists in the centrifugal impeller 120, after the air enters the centrifugal impeller 120 and collides with the centrifugal impeller 120, part of the air moves in the opposite direction to form the backflow airflow, and part of the backflow airflow moves to the backflow groove 132 along the inner wall of the centrifugal impeller 120 and reenters the centrifugal impeller 120 under the action of the backflow groove 132, so that the suction force of the motor is enhanced, and the working efficiency of the motor is improved.
In some embodiments of the utility model, as shown in fig. 3 to 4, the kink 131 is formed with the mouth 133 that converges, and the internal diameter of the mouth 133 that converges is 0.5mm to 2mm less than the internal diameter of air intake 121, and through this embodiment, the air current loops through mouth 133 and air intake 121 that converges, and the air current flow direction is more stable, can improve suction.
In some embodiments of the present invention, the thickness of the fan housing 130 is 1 to 5mm, and by this embodiment, the size can be selected to obtain a better practical effect.
In some embodiments of the present invention, as shown in fig. 2 to 3, the motor mechanism 200 further includes a motor base 220, and the rotor assembly 210 is disposed above the motor base 220, so that the normal operation of the rotor assembly 210 can be ensured.
In some embodiments of the present invention, as shown in fig. 2 to 3, the control board 300 is fixed to the bottom of the motor base 220, and by this embodiment, the air flow flowing out of the vane diffuser 110 can be prevented from contacting the control board 300, thereby preventing the damage of the control board 300 and prolonging the service life of the control board 300.
Preferably, the motor base 220 is made of aluminum or an aluminum alloy, which has high strength and good heat dissipation.
In some embodiments of the present invention, as shown in fig. 5, the vane diffuser 110 includes an inner support 111, a current guiding body 112 and an outer casing 113 which are sequentially connected along a radial direction of the vane diffuser 110, the rotor assembly 210 includes a shaft core 211, the shaft core 211 connects the inner support 111 through a bearing, and through this embodiment, compared with a motor provided with a full-coverage motor casing, the size of the motor can be reduced by using the inner support 111 as a connection member, and vibration can be reduced, thereby reducing noise generated by the motor.
Preferably, the shaft core 211 penetrates through the centrifugal impeller 120, the reverse nut is mounted at the top of the shaft core 211 and used for fixing the centrifugal impeller 120, and when the shaft core 211 rotates, the reverse nut is automatically locked, so that the centrifugal impeller 120 can be prevented from falling off.
In some embodiments of the present invention, as shown in fig. 2 and 5, the centrifugal impeller 120 is disposed above the inner support 111, and the wind cover 130 is connected to the outer shell 113.
In some embodiments of the present invention, as shown in fig. 2 to 3, the motor mechanism 200 further includes a stator assembly 230, the stator assembly 230 is disposed outside the rotor assembly 210, and the normal operation of the rotor is ensured through this embodiment.
In some embodiments of the present invention, as shown in fig. 2, the outer diameter of the motor mechanism 200 is smaller than the outer diameter of the vane diffuser 110, and through this embodiment, the air flow flowing out of the vane diffuser 110 can effectively flow out, thereby improving the working efficiency of the motor.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (10)
1. A brushless motor for a cleaner, comprising:
the fan mechanism comprises a blade diffuser, a centrifugal impeller and a fan cover, wherein the centrifugal impeller is arranged above the blade diffuser, the blade diffuser is used for guiding airflow flowing out of the centrifugal impeller, the fan cover is arranged above the centrifugal impeller, the centrifugal impeller comprises an air inlet, a bent part is arranged at an opening of the fan cover, a backflow groove is formed in the inner wall of the bent part, and the air inlet is positioned in the backflow groove;
the motor mechanism comprises a rotor assembly, and the rotor assembly is connected with the centrifugal impeller;
and the control board is used for controlling the motor mechanism.
2. The brushless motor for a vacuum cleaner according to claim 1, wherein the bent portion is formed with a flow-converging opening having an inner diameter 0.5mm to 2mm smaller than an inner diameter of the air inlet.
3. The brushless motor for a vacuum cleaner as claimed in claim 1, wherein the thickness of the wind shield is 1 to 5 mm.
4. The brushless motor for a vacuum cleaner of claim 1, wherein the motor mechanism further comprises a motor base, and the rotor assembly is disposed above the motor base.
5. The brushless motor for a vacuum cleaner as claimed in claim 4, wherein the control board is fixed to a bottom of the motor base.
6. The brushless motor for a vacuum cleaner as claimed in claim 5, wherein the base of the motor is made of aluminum or an aluminum alloy.
7. The brushless motor for a vacuum cleaner according to claim 1, wherein the vane diffuser includes an inner support body, a flow guiding body and an outer housing body sequentially connected in a radial direction of the vane diffuser, and the rotor assembly includes a shaft core connected to the inner support body through a bearing.
8. The brushless motor for a vacuum cleaner as claimed in claim 7, wherein the centrifugal impeller is disposed above the inner support, and the fan housing is connected to the outer housing.
9. The brushless motor for a vacuum cleaner according to claim 1, wherein the motor mechanism further comprises a stator assembly disposed outside the rotor assembly.
10. The brushless motor for a cleaner according to any one of claims 1 to 9, wherein an outer diameter of the motor mechanism is smaller than an outer diameter of the vane diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481893.XU CN213787165U (en) | 2020-10-30 | 2020-10-30 | Brushless motor of dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481893.XU CN213787165U (en) | 2020-10-30 | 2020-10-30 | Brushless motor of dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213787165U true CN213787165U (en) | 2021-07-27 |
Family
ID=76963603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481893.XU Active CN213787165U (en) | 2020-10-30 | 2020-10-30 | Brushless motor of dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213787165U (en) |
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2020
- 2020-10-30 CN CN202022481893.XU patent/CN213787165U/en active Active
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