A micro high-efficiency high-speed dust collector motor

Abstract

The utility model relates to motor technical field, concretely is a kind of mini high -efficient high -speed dust collector motor, including static vane wheel, the middle inside of static vane wheel is penetrated with rotor assembly, and the outside of one end of rotor assembly is provided with finished product stator assembly;Rotor assembly includes dynamic vane wheel.The utility model dust collector motor when using, the wind flow generated by dynamic vane wheel passes the hole therein, and the stator enameled wire and magnetic ring are subjected to wind flow heat dissipation, so it is favorable to improve motor temperature rise, further improve motor efficiency and life, left vane right magnetic ring adds balance ring, such design whole rotor does dynamic balance, it is convenient for the balance amount of whole rotor, it is more favorable to the stability under high speed, it is favorable to high frequency sound and life, when using, iron core adopts straight row tooth structure, so under certain volume more effectively improve the winding slot fullness of copper wire, so effectively improve motor efficiency and temperature rise, to increase life.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a miniature, high-efficiency, high-speed vacuum cleaner motor. Background Technology

[0002] The vacuum cleaner motor is the core power source of cleaning equipment. It adopts a high-speed series-wound motor structure, which generates strong suction through the synergistic effect of the rotor and stator. Its fan assembly converts electrical energy into mechanical energy, forming negative airflow to adsorb dust. At the same time, the heat dissipation design ensures stable operation for a long time.

[0003] However, existing vacuum cleaner motors require a separate heat dissipation structure to be installed inside the vacuum cleaner to cool the motor during use, and the motor rotor has poor dynamic balance and low stability at high speeds. Utility Model Content

[0004] The purpose of this invention is to provide a miniature, high-efficiency, high-speed vacuum cleaner motor to solve the problem of poor dynamic balance of the motor rotor mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a miniature, high-efficiency, high-speed vacuum cleaner motor, comprising: A stationary impeller, wherein a rotor assembly is penetrated through the middle of the stationary impeller, and a finished stator assembly is provided on the outer side of one end of the rotor assembly; The rotor assembly includes a moving impeller, an integrated bearing assembly is connected to one end of the moving impeller near the finished stator assembly, a magnetic ring is connected to one end of the integrated bearing assembly away from the moving impeller, and a balance ring is installed on one end of the magnetic ring away from the integrated bearing assembly. The finished stator assembly includes an iron core, with copper wire wound around the outside of the iron core, and a plastic-coated stator installed on one side of the iron core.

[0006] Preferably, the flow channel of the impeller adopts a Bezier curve design.

[0007] Preferably, the air inlet end of the stationary impeller is designed with multiple guide grooves that correspond to the holes in the hub portion of the stationary impeller in the air duct.

[0008] Preferably, the moving impeller has nine blades.

[0009] Preferably, the blades of the stationary impeller are provided with multiple blades.

[0010] Preferably, the stator impeller and rotor assembly are surrounded by a housing.

[0011] Preferably, after the plastic-coated stators are separated, they are connected to each other with ribs and can be bent into a circle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: When the vacuum cleaner motor of this utility model is in use, the airflow generated by the impeller passes through the holes to dissipate heat from the stator enameled wire and magnetic ring. This effectively reduces the motor temperature rise and further improves the motor efficiency and lifespan. The left impeller and right magnetic ring are combined with a balance ring. This design allows for dynamic balancing of the entire rotor, which facilitates the balance of the entire rotor. This is more conducive to stability at high speeds, and helps to improve high-frequency noise and extend lifespan.

[0013] When the vacuum cleaner motor of this utility model is in use, the iron core adopts a straight-row toothed structure, which can more effectively increase the filling rate of the copper wire winding slot within a certain volume. This effectively improves the motor efficiency and reduces temperature rise, thereby increasing the service life. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model; Figure 3 This is a schematic diagram of the stationary impeller of this utility model; Figure 4 This is a schematic diagram of the rotor assembly of this utility model; Figure 5 This is a schematic diagram of the finished stator assembly of this utility model; Figure 6 This is a schematic diagram of the unfolded structure of the finished stator assembly of this utility model; Figure 7 The Bezier curve of the moving impeller of this utility model; Figure 8 This is a schematic diagram illustrating the cross-sectional area variation of this utility model; Figure 9 This is a schematic cross-sectional view of the moving impeller of this utility model; Figure 10 This is a schematic diagram showing the change in the cross-sectional area of ​​the flow channel of the second stationary impeller of this utility model; Figure 11 This is a schematic diagram showing the change in the cross-sectional area of ​​the flow channel of the third stationary impeller of this utility model.

[0015] In the diagram: 01, stationary impeller; 02, rotor assembly; 21, moving impeller; 22, integrated bearing assembly; 23, magnetic ring; 24, balance ring; 03, finished stator assembly; 31, iron core; 32, plastic-coated stator; 33, copper wire. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-11 One embodiment of this utility model is a miniature, high-efficiency, high-speed vacuum cleaner motor.

[0018] Includes: a stationary impeller 01, a rotor assembly 02 passing through the middle of the stationary impeller 01, and a finished stator assembly 03 disposed on the outer side of one end of the rotor assembly 02; The rotor assembly 02 includes a moving impeller 21. The airflow generated by the moving impeller 21 passes through its holes to dissipate heat from the stator enameled wire and magnetic ring 23. This effectively increases the motor temperature rise, further improving motor efficiency and lifespan. An integrated bearing assembly 22 is connected to the end of the moving impeller 21 closest to the finished stator assembly 03. A magnetic ring 23 is connected to the end of the integrated bearing assembly 22 away from the moving impeller 21. A balance ring 24 is installed at the end of the magnetic ring 23 away from the integrated bearing assembly 22. With the left impeller, right magnetic ring 23, and balance ring 24, this design allows for dynamic balancing of the entire rotor, facilitating the balance of the entire rotor. This is more conducive to stability at high speeds, improving high-frequency noise, and extending lifespan. The finished stator assembly 03 includes an iron core 31, which adopts a straight-line tooth structure. This can more effectively increase the winding slot fill factor of the copper wire 33 within a certain volume, thereby effectively improving motor efficiency and temperature rise, and thus increasing lifespan. Copper wire 33 is wound on the outside of the iron core 31, and a plastic-coated stator 32 is installed on one side of the iron core 31.

[0019] Furthermore, the flow channel of the impeller 21 adopts a Bezier curve design. The airflow generated by the impeller 21 passes through the holes therein to dissipate heat from the stator enameled wire and magnetic ring 23. This helps to improve the temperature rise of the motor and further improve the motor efficiency and lifespan.

[0020] Furthermore, the air inlet end of the stationary impeller 01 is designed with multiple guide grooves, which correspond to the holes in the hub of the stationary impeller 01 in the air duct. The number of guide grooves is 1-3 times the number of blades of the stationary impeller 01. The left impeller has a magnetic ring 23 and a balance ring 24 on the right. This design allows for dynamic balancing of the entire rotor, which facilitates the balance of the entire rotor. This is more conducive to stability at high speeds and helps improve high-frequency sound and lifespan.

[0021] Furthermore, the impeller 21 has nine blades. The airflow generated by the impeller 21 passes through the holes therein to dissipate heat from the stator enameled wire and the magnetic ring 23. This helps to increase the motor temperature rise and further improve the motor efficiency and lifespan.

[0022] Furthermore, the blades of the stationary impeller 01 are multi-bladed, with the left impeller and the right magnetic ring 23 plus the balance ring 24. This design allows for dynamic balancing of the entire rotor, which facilitates the balance of the entire rotor. This is more conducive to stability at high speeds, and helps to improve high-frequency sound and extend lifespan.

[0023] Furthermore, the stationary impeller 01 and the rotor assembly 02 are surrounded by a housing. The airflow generated by the moving impeller 21 passes through the holes therein to dissipate heat from the stator enameled wire and the magnetic ring 23. This helps to improve the temperature rise of the motor and further improve the motor efficiency and lifespan.

[0024] Furthermore, after the plastic-coated stator 32 is separated, it is connected to each other with ribs and can be bent into a circle. The iron core 31 adopts a straight row tooth structure, which can more effectively improve the winding slot fill factor of the copper wire 33 within a certain volume. This effectively improves the motor efficiency and temperature rise, thereby increasing the service life. The outer diameter of the iron core 31 is 18-20mm.

[0025] The air duct adopts a three-section structure. The first section has a moving impeller 21, and the second and third sections have stationary impellers 01. The first section is the moving impeller 21. The outer diameter of the inlet flow channel of the moving impeller 21 is 14.1 mm, the inner diameter is 5 mm, and it is equipped with a 4 mm diameter rotating shaft. The impeller height is 13.2 mm, and the maximum outer diameter of the impeller is 20 mm. The flow channel of the moving impeller 21 adopts a Bezier curve design, and the cross-sectional area of ​​the flow channel gradually changes from 135.5 mm² at the inlet to 03.83 mm² in the finished stator assembly. The change curve is shown below. Figure 7 , 8 The impeller 21 has 9 or 7 blades, with a blade inlet installation angle of 55.2 degrees to 30.6 degrees and a blade outlet installation angle of 32.3 degrees to 36 degrees. The blade inlet / outlet installation angle is defined as the angle between the tangent of the blade inlet / outlet edge and the plane of rotation. The blade wrap angle of the impeller 21 is 94.2 degrees to 82.9 degrees, which is the angle of a single blade along the circumferential direction. The second section is the stationary impeller 01. The outer diameter of the flow channel of stationary impeller 01 is 27mm, the inner diameter of the moving impeller is 21mm, the height is 7.8mm, and the cross-sectional area of ​​the flow channel is 226.2mm², which is the same as that of the integrated bearing assembly 22. The variation curve is shown below. Figure 10 The number of blades is 5, 7, 9 or 11, the blade inlet installation angle is 17.7 degrees to 20.5 degrees, the blade outlet installation angle is 61.7 degrees to 64.6 degrees, and the blade wrap angle is 47 degrees to 44 degrees. The third section is the stationary impeller 01. The outer diameter of the flow channel of the stationary impeller 01 is 27mm, the inner diameter of the moving impeller is 21mm, the height is 12mm, and the cross-sectional area of ​​the flow channel is 226.2mm², which is the same as that of the integrated bearing assembly 22. The variation curve is shown below. Figure 11 The blades have 13, 15, or 17 blades, with an inlet blade angle of 35-36.7 degrees, an outlet blade angle of 89-89.2 degrees, and a blade wrap angle of 21-18.5 degrees for the impeller.

[0026] Working principle: During use, the airflow generated by the impeller 21 passes through its holes to dissipate heat from the stator enameled wire and magnetic ring 23. The iron core 31 adopts a straight-row toothed structure, which more effectively increases the fill factor of the winding slots of the copper wire 33 within a given volume. The above is the complete working principle of this utility model.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A miniature, high-efficiency, high-speed vacuum cleaner motor, characterized in that, include: A stationary impeller (01) has a rotor assembly (02) running through its middle interior, and a finished stator assembly (03) is provided on the outer side of one end of the rotor assembly (02). The rotor assembly (02) includes a moving impeller (21), and an integrated bearing assembly (22) is connected to one end of the moving impeller (21) near the finished stator assembly (03). A magnetic ring (23) is connected to one end of the integrated bearing assembly (22) away from the moving impeller (21). A balance ring (24) is installed on one end of the magnetic ring (23) away from the integrated bearing assembly (22). The finished stator assembly (03) includes an iron core (31), with copper wire (33) wound around the outside of the iron core (31), and a plastic-coated stator (32) installed on one side of the iron core (31).

2. The miniature high-efficiency high-speed vacuum cleaner motor according to claim 1, characterized in that: The flow channel of the impeller (21) adopts a Bezier curve design.

3. The miniature high-efficiency high-speed vacuum cleaner motor according to claim 1, characterized in that: The air inlet end of the stationary impeller (01) is designed with multiple guide grooves, which correspond to the holes in the hub of the stationary impeller (01) in the air duct.

4. The miniature high-efficiency high-speed vacuum cleaner motor according to claim 1, characterized in that: The impeller (21) has nine blades.

5. A miniature, high-efficiency, high-speed vacuum cleaner motor according to claim 2, characterized in that: The blades of the stationary impeller (01) are provided with multiple blades.

6. A miniature, high-efficiency, high-speed vacuum cleaner motor according to claim 3, characterized in that: The stationary impeller (01) and rotor assembly (02) are surrounded by a housing.

7. A miniature, high-efficiency, high-speed vacuum cleaner motor according to claim 4, characterized in that: After the plastic-coated stator (32) is separated, it is connected to each other with ribs and can be bent into a circle.

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