A new type of motor

Abstract

This application discloses a novel motor, relating to the field of vacuum cleaner motor technology, including a stator assembly. A fixing plate is provided on one side of the stator assembly, and a plurality of fixing posts are arranged around the circumference of the fixing plate. A motor control board and a battery pack control board are spaced apart on one side of the stator assembly. The fixing posts pass through the motor control board and the battery pack control board, and a limiting sleeve is sleeved between the fixing posts and the battery pack control board. The end of the fixing post away from the fixing plate is fixed to the battery pack control board by screws. A rotor assembly is rotatably arranged inside the stator assembly. A drive shaft is provided at the end of the rotor assembly away from the fixing plate, and a moving impeller is provided on the drive shaft. The fixing plate fixes the stator assembly, and the fixing posts pass through the motor control board and the battery pack control board. With the help of the limiting sleeve and screws, the control board and the motor body are integrated, changing the traditional situation where the motor control board is external, improving the degree of integration, reducing space occupation, and the moving impeller provides heat dissipation.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaner motor technology, and in particular to a novel motor. Background Technology

[0002] In the field of home cleaning, household vacuum cleaners have become an indispensable appliance in modern homes due to their efficient and convenient cleaning capabilities. As the core power component of a vacuum cleaner, the motor's performance directly determines the vacuum cleaner's suction power, operating efficiency, and lifespan. With consumers' increasing demands for lightweight, portable, and long-lasting vacuum cleaners, the technical requirements for motors are becoming increasingly stringent, driving the continuous iteration and development of vacuum cleaner motor technology.

[0003] In existing technologies, traditional high-pressure brushless motors used in household vacuum cleaners share certain common structural design characteristics. The battery pack control board and motor control board of these motors are typically externally mounted; that is, they are not highly integrated with the motor body but are independently located in different parts of the vacuum cleaner. Furthermore, because the motor generates a large amount of heat during high-speed operation, traditional high-pressure brushless motors also require a dedicated metal heat sink to dissipate heat through the thermal conductivity of the metal material, maintaining a suitable internal temperature for the motor.

[0004] Regarding the aforementioned technologies, the inventors believe that the external placement of the battery pack control board and motor control board results in a loose overall structure and low integration of the motor system, which not only occupies more space inside the vacuum cleaner but also hinders the miniaturization design of the vacuum cleaner. Utility Model Content

[0005] The purpose of this application is to provide a new type of motor to improve the problem that the overall structure of the motor system is relatively loose and the degree of integration is low, which is not conducive to the miniaturization design of vacuum cleaners.

[0006] This application provides a novel motor, employing the following technical solution:

[0007] A novel motor includes a stator assembly. A fixing plate is provided on one side of the stator assembly, and a plurality of fixing posts are arranged around the circumference of the fixing plate, with the fixing posts arranged along the axial direction of the stator assembly. A motor control board and a battery pack control board are spaced apart on one side of the stator assembly, and the fixing posts penetrate the motor control board and the battery pack control board. The motor control board and the battery pack control board are hollowed out, and a limiting sleeve is fitted between the fixing posts and the battery pack control board. The end of the fixing post away from the fixing plate is fixed to the battery pack control board by screws. A rotor assembly is rotatably disposed inside the stator assembly, and a drive shaft is provided at the end of the rotor assembly away from the fixing plate. The drive shaft is provided with a moving impeller.

[0008] By adopting the above technical solution, by setting a fixing plate and a fixing column along the axial direction of the stator assembly, the fixing column penetrates the motor control board and the battery pack control board, and then using a limit sleeve and screws for fixing, the control board and the motor body are integrated, changing the traditional situation of the motor control board being external, improving the degree of integration, reducing space occupation, and at the same time, the moving impeller provides heat dissipation, which helps to improve the overall compactness and operating efficiency of the motor.

[0009] Optionally, the battery pack control board has a rear cover on the side away from the motor control board, and the rear cover has several openings on its peripheral sidewall.

[0010] By adopting the above technical solution, the back cover on one side of the battery pack control board can protect the control board, reduce impact damage, and the opening can be used for wiring and heat dissipation, making the wiring layout more organized, reducing the space occupied by messy wiring, and further ensuring the stability of motor operation.

[0011] Optionally, the top surface of the rear cover is provided with several heat dissipation vents.

[0012] By adopting the above technical solution, heat dissipation vents are set on the top surface of the rear cover. In combination with the airflow generated by the rotation of the impeller, the heat generated by the operation of the motor control board and the battery pack control board can be discharged in time without the need for additional metal heat dissipation components, while ensuring the heat dissipation effect.

[0013] Optionally, the fixing plate is provided with a plurality of limiting plates around its circumference, and the inner sidewall of the limiting plates is in contact with the outer sidewall of the stator assembly.

[0014] By adopting the above technical solution, the limiting plate fits into the outer wall of the stator assembly, which can quickly connect and fix the stator assembly during installation, improving the convenience and stability of stator assembly installation, and also improving assembly efficiency.

[0015] Optionally, the stator assembly is provided with an end cover on the side away from the fixed plate, and the moving impeller is located on the side of the end cover away from the stator assembly; the inner wall of the end cover is provided with a plurality of outer guide vanes, the outer guide vanes are provided with a fixing ring, and the inner wall of the fixing ring is provided with a plurality of inner guide vanes.

[0016] By adopting the above technical solution, the end cover can protect the side of the stator assembly away from the fixed plate, while the impeller located outside the end cover can better draw in air. The outer guide vane can guide the airflow outward for heat dissipation, and the inner guide vane can direct the airflow to the control board, thus achieving targeted heat dissipation of key components inside the motor and enhancing the effectiveness of heat dissipation.

[0017] Optionally, the end cap is provided with a plurality of insert rods, and the outer side wall of the stator assembly is provided with a plurality of slots corresponding to the insert rods.

[0018] By adopting the above technical solution, the insertion rod of the end cover cooperates with the slot on the outer wall of the stator assembly, realizing the quick docking of the end cover and the stator assembly, simplifying the installation process of the end cover and improving the assembly efficiency.

[0019] Optionally, a shroud is provided at the end of the end cover away from the stator assembly to protect the moving impeller.

[0020] By adopting the above technical solution, a wind shield is set at the end of the end cover away from the stator assembly, which helps to protect the moving impeller from external collisions or foreign object interference, extends the service life of the moving impeller, and helps to ensure the stability of airflow.

[0021] Optionally, the hood is connected to an air inlet pipe, the diameter of which is smaller than the diameter of the hood.

[0022] By adopting the above technical solution, the diameter of the air inlet pipe is smaller than the diameter of the hood, so that the incoming air forms a more dispersed airflow inside the hood, which makes it easier for the impeller to drive the airflow to form a wind direction.

[0023] In summary, this application includes at least one of the following beneficial technical effects of the novel motor:

[0024] 1. By setting a fixing plate and a fixing column along the axial direction of the stator assembly, the fixing column passes through the motor control board and the battery pack control board. With the help of limit sleeves and screws for fixing, the control board and the motor body are integrated. This changes the traditional situation of the motor control board being external, improves the degree of integration, reduces space occupation, and the moving impeller provides heat dissipation, which helps to improve the overall compactness and operating efficiency of the motor.

[0025] 2. The limiting plate fits snugly against the outer wall of the stator assembly, enabling quick docking and fixing of the stator assembly during installation, which improves the convenience and stability of stator assembly installation and also increases assembly efficiency;

[0026] 3. The end cover can protect the side of the stator assembly away from the fixed plate, while the impeller located outside the end cover can better draw in air. The outer guide vane can guide the airflow outward for heat dissipation, and the inner guide vane can direct the airflow to the control board, thus achieving targeted heat dissipation of key components inside the motor and enhancing the effectiveness of heat dissipation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the new motor;

[0028] Figure 2 This is a schematic diagram illustrating the structure of the moving impeller in the embodiment;

[0029] Figure 3 This is a schematic diagram illustrating the end cap structure in the embodiment.

[0030] In the diagram, 1 is the stator assembly; 11 is the slot; 2 is the fixing plate; 21 is the fixing column; 211 is the limiting sleeve; 22 is the limiting plate; 3 is the motor control board; 31 is the battery pack control board; 4 is the rotor assembly; 41 is the drive shaft; 42 is the moving impeller; 5 is the rear cover; 51 is the opening; 52 is the heat dissipation outlet; 6 is the end cover; 61 is the outer guide vane; 62 is the fixing ring; 63 is the inner guide vane; 64 is the insertion rod; 7 is the fan cover; and 71 is the air inlet pipe. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0032] A new type of motor, referring to Figure 1 The motor includes a stator assembly 1, which is the stationary part of the motor and consists of an iron core, windings, etc., used to generate a magnetic field. A fixing plate 2 is fixed to one side of the stator assembly 1 by screws. The fixing plate 2 has several limiting plates 22 integrally formed around its circumference. In this embodiment, three are preferred. The limiting plates 22 are plate-shaped structures used to limit the movement of the stator assembly 1. The inner sidewall of the limiting plates 22 is in contact with the outer sidewall of the stator assembly 1.

[0033] Reference Figure 1 The fixed plate 2 is integrally formed with a plurality of fixed posts 21, preferably three in this embodiment. The fixed posts 21 are columnar structures used to install and fix other components, and the fixed posts 21 are arranged along the axial direction of the stator assembly 1.

[0034] Reference Figure 1 A motor control board 3 and a battery pack control board 31 are spaced apart on one side of the stator assembly 1. A fixing post 21 passes through the motor control board 3 and the battery pack control board 31. The motor control board 3 is a circuit board used to control the motor's operating status, and the battery pack control board 31 is a circuit board used to manage the charging and discharging status of the battery pack. The motor control board 3 and the battery pack control board 31 are hollowed out. A limiting sleeve 211 is fitted between the fixing post 21 and the motor control board 3 and the battery pack control board 31. The limiting sleeve 211 is a plastic sleeve-shaped structure with a certain degree of rigidity, and its inner diameter is adapted to the outer diameter of the fixing post 21. The limiting sleeve 211 fixes the distance between the motor control board 3 and the battery pack control board 31.

[0035] Reference Figure 1The end of the fixing post 21 furthest from the fixing plate 2 is fixed to the battery pack control board 31 by screws. Specifically, the screws pass through the battery pack control board 31 and are threadedly connected to the fixing post 21. That is, the end of the fixing post 21 furthest from the fixing plate 2 is provided with internal threads. The screws pass through the corresponding through holes on the battery pack control board 31 and are screwed into the internal threads of the fixing post 21 for fixation. A rear cover 5 is provided on the side of the battery pack control board 31 furthest from the motor control board 3. The rear cover 5 is a cover used to protect the internal components. The rear cover 5 is also fixed by screws and is in the same group as the screws fixing the fixing post 21 and the battery pack control board 31. That is, this group of screws passes through the rear cover 5 and the battery pack control board 31 in sequence and is threadedly connected to the fixing post 21, so that all three are fixed at the same time.

[0036] Reference Figure 1 The back cover 5 has several openings 51 on its side walls, which can be used for wiring, etc. The top surface of the back cover 5 has several heat dissipation vents 52, which are holes used to dissipate internal heat. The specific number of openings 51 and heat dissipation vents is not required.

[0037] Reference Figure 1 , Figure 2 The stator assembly 1 contains a rotor assembly 4, which is rotatably mounted within it via bearings. The rotor assembly 4 is the rotatable part of the motor and consists of an iron core, windings, and a shaft. The bearings allow the rotor assembly 4 to rotate freely relative to the stator assembly 1. A drive shaft 41 is integrally formed at the end of the rotor assembly 4 furthest from the fixed plate 2. The drive shaft 41 is a shaft component used to transmit power. A moving impeller 42 is connected to the drive shaft 41 via a key. The moving impeller 42 is a component that rotates with the drive shaft 41 to generate airflow.

[0038] Reference Figure 1 , Figure 3 An end cover 6 is fixed to the side of the stator assembly 1 away from the fixed plate 2 by screws. The end cover 6 is a cylindrical structure with both ends connected. The screws are passed through the corresponding screw holes of the end cover 6 and the stator assembly 1 in sequence and then tightened. The moving impeller 42 is located on the side of the end cover 6 away from the stator assembly 1.

[0039] Reference Figure 1 , Figure 3 The end cap 6 is integrally formed and has several insert rods 64, preferably three in this embodiment. The insert rods 64 are rod-shaped structures used for positioning and connection. The outer wall of the stator assembly 1 is provided with several slots 11 corresponding to the insert rods 64. The slots 11 are groove-shaped structures adapted to the insert rods 64. The insert rods 64 are inserted into the slots 11 to achieve rapid preliminary positioning of the end cap 6 and the stator assembly 1.

[0040] Reference Figure 3The inner wall of the end cap 6 is integrally formed with several outer guide vanes 61. The outer guide vanes 61 are plate-shaped structures used to guide the airflow direction. The outer guide vanes 61 guide the airflow generated by the rotation of the impeller 42 to dissipate heat. One end of the outer guide vane 61 is integrally formed and connected to the fixing ring 62. The fixing ring 62 is a ring-shaped structure. The inner wall of the fixing ring 62 is integrally formed with several inner guide vanes 63. The inner guide vanes 63 are also plate-shaped structures that guide the airflow. The airflow generated by the rotation of the impeller 42 is blown by the inner guide vanes 63 toward the motor control board 3 and the battery pack control board 31 to dissipate heat.

[0041] Reference Figure 1 The end of the end cover 6 away from the stator assembly 1 is provided with a wind cover 7 to protect the moving impeller 42 by a snap-fit ​​connection. The wind cover 7 is integrally connected with an air inlet pipe 71, the diameter of which is smaller than the diameter of the wind cover 7.

[0042] The implementation principle of this application embodiment is as follows:

[0043] In actual use, after startup, the stator assembly 1 winding is energized to generate a magnetic field, which drives the rotor assembly 4 to rotate at high speed through the bearing. The drive shaft 41 rotates accordingly and drives the moving impeller 42 to rotate. The rotation of the moving impeller 42 causes air to enter from the air inlet pipe 71 of the fan cover 7 to form an airflow. The outer guide vane 61 guides part of the airflow to dissipate heat, and the inner guide vane 63 directs part of the airflow to the motor control board 3 and the battery pack control board 31 for heat dissipation. The hot airflow is discharged through the heat dissipation outlet 52 of the rear cover 5. Structurally, the fixing plate 2, fixing column 21, etc. integrate the control board with the motor body, and the end cover 6, fan cover 7, etc. are firmly connected, which helps to solve the problem of low integration in traditional motors.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel motor, comprising a stator assembly (1), characterized in that: A fixing plate (2) is provided on one side of the stator assembly (1), and a plurality of fixing posts (21) are provided around the circumference of the fixing plate (2). The fixing posts (21) are arranged along the axial direction of the stator assembly (1). A motor control board (3) and a battery pack control board (31) are provided at intervals on one side of the stator assembly (1). The fixing posts (21) penetrate the motor control board (3) and the battery pack control board (31). The motor control board (3) and the battery pack control board (31) are hollowed out. A limiting sleeve (211) is provided between the fixing posts (21) and the battery pack control board (31). The end of the fixing post (21) away from the fixing plate (2) is fixed to the battery pack control board (31) by screws. A rotor assembly (4) is rotatably provided inside the stator assembly (1). A drive shaft (41) is provided at the end of the rotor assembly (4) away from the fixing plate (2). A moving impeller (42) is provided on the drive shaft (41).

2. The novel motor according to claim 1, characterized in that: The battery pack control board (31) has a rear cover (5) on the side away from the motor control board (3), and the rear cover (5) has several openings (51) on its peripheral sidewall.

3. The novel motor according to claim 2, characterized in that: The top surface of the rear cover (5) is provided with several heat dissipation vents (52).

4. The novel motor according to claim 1, characterized in that: The fixing plate (2) is provided with a plurality of limiting plates (22) around its circumference, and the inner sidewall of the limiting plates (22) is in contact with the outer sidewall of the stator assembly (1).

5. A novel motor according to claim 1, characterized in that: The stator assembly (1) is provided with an end cover (6) on the side away from the fixed plate (2), and the moving impeller (42) is located on the side of the end cover (6) away from the stator assembly (1); the inner wall of the end cover (6) is provided with a plurality of outer guide vanes (61), the outer guide vanes (61) are provided with a fixing ring (62), and the inner wall of the fixing ring (62) is provided with a plurality of inner guide vanes (63).

6. A novel motor according to claim 5, characterized in that: The end cap (6) is provided with a plurality of insert rods (64), and the outer side wall of the stator assembly (1) is provided with a plurality of slots (11) corresponding to the insert rods (64).

7. A novel motor according to claim 6, characterized in that: The end cap (6) is provided with a shroud (7) at the end away from the stator assembly (1) to protect the moving impeller (42).

8. A novel motor according to claim 7, characterized in that: The hood (7) is connected to an air inlet pipe (71), the diameter of which is smaller than the diameter of the hood (7).

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