High-speed brushless air duct anti-winding motor

Abstract

The utility model discloses a high-speed brushless air duct anti-winding motor, which belongs to the technical field of air duct motors, and comprises an outer shell, an inner shell is arranged in the outer shell, an air duct is formed between the outer shell and the inner shell, a stator assembly is arranged in the inner shell, a rotor assembly is arranged in the stator assembly, the rotor assembly is connected with a rotating shaft, and the rotating shaft is connected with the brushless air duct. One end of the rotating shaft is connected with an impeller, the impeller is arranged between the outer shell and the inner shell, and a circuit board is arranged in the inner shell; when the impeller rotates to suck external air from the air inlet, larger foreign matters are blocked by the filter screen, and smaller foreign matters enter the motor, pass through the air channel formed between the outer shell and the inner shell and cannot enter the rotor assembly in the inner shell, so that the risk that the rotor assembly is wound by the foreign matters to damage the motor is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine motor technology, and in particular relates to a high-speed brushless wind turbine anti-winding motor. Background Technology

[0002] The hair dryer motor is the motor inside the hair dryer. Its main function is to drive the fan blades to rotate, so that the air flows quickly and thus generates wind. High-speed brushless hair dryers are widely used because of their high efficiency and energy saving. However, traditional hair dryer motors are prone to sucking in foreign objects such as hair and fibers, which can enter the motor and become entangled in the internal rotor assembly, causing motor failure and affecting the user experience and lifespan. Utility Model Content

[0003] The purpose of this utility model is to provide a high-speed brushless fan anti-winding motor to solve the problem of foreign objects easily entering the motor and causing motor failure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed brushless anti-winding motor for a blower, comprising a housing, an inner housing inside the housing, an air duct formed between the housing and the inner housing, a stator assembly inside the inner housing, a rotor assembly inside the stator assembly, a rotating shaft connected to the rotor assembly, an impeller connected to one end of the rotating shaft, the impeller being disposed between the housing and the inner housing, and a circuit board inside the inner housing.

[0005] As a further description of the above technical solution:

[0006] The stator assembly includes a stator core and stator coils.

[0007] As a further description of the above technical solution:

[0008] The circuit board is electrically connected to the stator coil.

[0009] As a further description of the above technical solution:

[0010] An air inlet is provided on the top of the outer casing, and a filter screen is installed at the air inlet.

[0011] As a further description of the above technical solution:

[0012] An air outlet is provided at the bottom of the outer casing.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0014] In this invention, when the impeller rotates and draws in external air from the air inlet, larger foreign objects are blocked by the filter screen, while smaller foreign objects, after entering the motor, will pass through the air duct formed between the outer shell and the inner shell and cannot enter the rotor assembly in the inner shell, thereby avoiding the risk of the rotor assembly being entangled by foreign objects and damaging the motor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a high-speed brushless air duct anti-winding motor.

[0016] Figure 2 This is a cross-sectional view of a high-speed brushless air duct anti-winding motor.

[0017] Legend:

[0018] 1. Outer shell; 2. Inner shell; 3. Air duct; 4. Stator assembly; 5. Rotor assembly; 6. Shaft; 7. Impeller; 8. Circuit board; 9. Stator core; 10. Stator coil; 11. Air inlet; 12. Filter; 13. Air outlet. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2 This utility model provides a technical solution: a high-speed brushless anti-winding motor for a blower, including a housing 1, an inner housing 2 inside the housing 1, an air duct 3 formed between the housing 1 and the inner housing 2, a stator assembly 4 inside the inner housing 2, a rotor assembly 5 inside the stator assembly 4, a rotating shaft 6 connected to the rotor assembly 5, an impeller 7 connected to one end of the rotating shaft 6, the impeller 7 being disposed between the housing 1 and the inner housing 2, and a circuit board 8 inside the inner housing 2;

[0021] The stator assembly 4 includes a stator core 9 and a stator coil 10;

[0022] The circuit board 8 is electrically connected to the stator coil 10 and is used to energize the stator coil 10 to generate a magnetic field to drive the rotor assembly 5 to rotate.

[0023] The top of the outer casing 1 is provided with an air inlet 11, and a filter screen 12 is installed at the air inlet 11 for preliminary filtration of larger foreign objects;

[0024] An air outlet 13 is provided at the bottom of the outer casing 1.

[0025] Working principle: The circuit board 8 supplies power to the stator coil 10 to generate a magnetic field that drives the rotor assembly 5 to rotate. The rotor assembly 5 drives the shaft 6 to rotate, and the shaft 6 drives the impeller 7 to rotate, drawing in external air from the air inlet 11. At this time, larger foreign objects are blocked by the filter screen 12, and smaller foreign objects enter the motor and pass through the air duct 3 formed between the outer shell 1 and the inner shell 2, and cannot enter the rotor assembly 5 in the inner shell 2, thus protecting the motor.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-speed brushless air duct anti-winding motor, characterized in that: The device includes an outer shell (1), an inner shell (2) is provided inside the outer shell (1), an air duct (3) is formed between the outer shell (1) and the inner shell (2), a stator assembly (4) is provided in the inner shell (2), a rotor assembly (5) is provided in the stator assembly (4), a rotating shaft (6) is connected to the rotor assembly (5), an impeller (7) is connected to one end of the rotating shaft (6), the impeller (7) is provided between the outer shell (1) and the inner shell (2), and a circuit board (8) is provided in the inner shell (2).

2. The high-speed brushless air duct anti-winding motor according to claim 1, characterized in that, The stator assembly (4) includes a stator core (9) and a stator coil (10).

3. The high-speed brushless air duct anti-winding motor according to claim 2, characterized in that, The circuit board (8) is electrically connected to the stator coil (10).

4. The high-speed brushless air duct anti-winding motor according to claim 1, characterized in that, The top of the outer casing (1) is provided with an air inlet (11), and a filter screen (12) is installed at the air inlet (11).

5. A high-speed brushless air duct anti-winding motor according to claim 1, characterized in that, An air outlet (13) is provided at the bottom of the outer casing (1).

Images