Hub brushless motor

Abstract

The utility model discloses a wheel hub brushless motor which comprises a support, a rotor is vertically inserted in the middle of the support, a rotating shaft is vertically arranged in the rotor, the rotor and the rotating shaft are in the same moving direction, a shell is sleeved at the top end of the rotating shaft, the shell covers the support, and the rotating shaft and the shell are in the same moving direction. The rotating shaft and the shell are driven to rotate on the support when the rotor rotates, a stator core is arranged between the support and the shell and arranged at the top end of the outer portion of the support in a sleeving mode, one side of the stator core is parallel to one side of the interior of the shell, and a PCBA is arranged between the stator core and the support. The PCBA is transversely fixed to the support, and a lead socket is electrically formed in the bottom end of the PCBA and located at the bottom end of the exterior of the support.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a hub brushless motor. Background Art

[0002] A permanent magnet brushless motor is a permanent magnet motor controlled by electronic circuit commutation or current. There are two types of permanent magnet brushless motors: sine wave drive and square wave drive; those with a rectangular wave drive current are usually called permanent magnet brushless DC motors, and those with a sine wave drive current are usually called permanent magnet AC servo motors. According to the sensing type, they can be divided into sensor motors and positive sensor motors. However, in the prior art, the leads of the hub brushless motor are directly spot-welded to the PCBA. Once the leads are damaged or short-circuited, the PCBA needs to be replaced and repaired together, resulting in an increase in the overall cost. Therefore, a hub brushless motor is proposed. Content of the Utility Model

[0003] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0004] A hub brushless motor includes a bracket. A rotor is vertically inserted in the middle position of the bracket, and a rotating shaft is vertically arranged inside the rotor. The rotor and the rotating shaft move in the same direction. The top end of the rotating shaft is sleeved with a housing, and the housing covers the bracket. The rotating shaft and the housing move in the same direction. Thus, when the rotor rotates, it drives the rotating shaft and the housing to rotate on the bracket. A stator core is arranged between the bracket and the housing, and the stator core is sleeved at the top end outside the bracket. One side of the stator core is parallel to one side inside the housing. A PCBA is arranged between the stator core and the bracket, and the PCBA is horizontally fixed on the bracket. A lead socket is electrically arranged at the bottom end of the PCBA, and the lead socket is located at the bottom end outside the bracket.

[0005] Preferably, a magnetic ring is horizontally arranged at the bottom end inside the housing, and the magnetic ring and the housing move in the same direction. A plurality of magnet pieces are arranged on the side surface of the magnetic ring, and the plurality of magnet pieces are vertically and equally arranged and attached to the side surface inside the housing. The housing and the plurality of magnet pieces move in the same direction. Through the plurality of magnet pieces, a magnetic force is generated between the magnetic ring and the stator core to form a magnetic field.

[0006] Preferably, the stator core is provided with coils, and the coils are wound and fixed on the side of the stator core, and the coils are electrically connected to the PCBA.

[0007] Preferably, a bearing sleeve is arranged between the rotating shaft and the housing, and the bearing sleeve is vertically located at the top end of the housing. The rotating shaft penetrates through the bearing sleeve, and the bearing sleeve and the rotating shaft move in the same direction. Through the bearing sleeve, the rotating shaft and the housing move in the same direction.

[0008] Compared with the prior art, the beneficial effects of the present utility model are as follows: By electrically plugging and connecting with external leads through the lead socket, when the lead is damaged or short-circuited, it can be directly unplugged and replaced, without the need to replace and repair the PCBA together. And through the electrical plugging of the lead socket and the external lead, and then through the PCBA to energize the stator core and change the magnetic field between the magnetic ring and the stator core, so as to drive the rotor to rotate and at the same time drive the rotating shaft to rotate.

[0009] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0011] Figure 1 It is a schematic structural diagram of a hub brushless motor;

[0012] Figure 2 It is another schematic structural diagram of a hub brushless motor;

[0013] Figure 3 It is yet another schematic structural diagram of a hub brushless motor;

[0014] Figure 4 It is a schematic structural diagram of a stator core;

[0015] Figure 5 It is a schematic structural diagram of a rotor.

[0016] As shown in the figure: 1. Housing, 2. Bracket, 3. Rotating shaft, 4. Lead socket, 5. Stator core, 6. Magnet sheet, 7. PCBA, 8. Magnetic ring, 9. Rotor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0018] Please refer to Figures 1-5, in the embodiment of the present utility model, a hub brushless motor includes a bracket 2. A rotor 9 is vertically inserted in the middle position of the bracket 2. A rotating shaft 3 is vertically arranged inside the rotor 9, and the rotor 9 and the rotating shaft 3 move in the same direction. A housing 1 is sleeved on the top end of the rotating shaft 3, and the housing 1 covers the bracket 2, and the rotating shaft 3 and the housing 1 move in the same direction. Thus, when the rotor 9 rotates, it drives the rotating shaft 3 and the housing 1 to rotate on the bracket 2. A stator core 5 is arranged between the bracket 2 and the housing 1, and the stator core 5 is sleeved on the outer top end of the bracket 2, and one side of the stator core 5 is parallel to one side inside the housing 1. A PCBA 7 is arranged between the stator core 5 and the bracket 2, and the PCBA 7 is horizontally fixed on the bracket 2. A lead socket 4 is electrically arranged at the bottom end of the PCBA 7, and the lead socket 4 is located at the bottom end outside the bracket 2. Thus, the lead socket 4 is electrically plugged and connected with an external lead, so that when the lead is damaged or short-circuited, it can be directly unplugged and replaced without replacing and repairing the PCBA 7 together.

[0019] A magnetic ring 8 is horizontally arranged at the bottom end inside the housing 1, and the magnetic ring 8 and the housing 1 move in the same direction. A plurality of magnet pieces 6 are arranged on the side surface of the magnetic ring 8, and the plurality of magnet pieces 6 are vertically and equally arranged and attached to the side surface inside the housing 1, and the housing 1 and the plurality of magnet pieces 6 move in the same direction. Through the plurality of magnet pieces 6, a magnetic force is generated between the magnetic ring 8 and the stator core 5 to form a magnetic field. Thus, through the electrical plugging of the lead socket 4 and the external lead and then through the PCBA 7 to energize the stator core 5 and change the magnetic field between the magnetic ring 8 and the stator core 5, the rotor 9 is driven to rotate and at the same time the rotating shaft 3 is driven to rotate.

[0020] The stator core 5 is provided with coils (not shown in the figure), and the coils are wound and fixed on the side of the stator core 5, and the coils are electrically connected with the PCBA 7. Thus, the coils are energized through the PCBA 7 to change the magnetic field between the magnetic ring 8 and the stator core 5.

[0021] A bearing sleeve (not shown in the figure) is arranged between the rotating shaft 3 and the housing 1, and the bearing sleeve is vertically located at the top end of the housing 1. The rotating shaft 3 penetrates through the bearing sleeve, and the bearing sleeve and the rotating shaft 3 move in the same moving direction, and through the bearing sleeve, the rotating shaft 3 and the housing 1 move in the same direction.

[0022] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A hub brushless motor, including a bracket, characterized in that: A rotor is vertically inserted in the middle position of the bracket, and a rotating shaft is vertically arranged inside the rotor, and the rotor and the rotating shaft have the same movement direction. A shell is mounted on the top of the rotating shaft, and the shell covers the bracket, and the rotating shaft and the shell have the same movement direction, so that the rotating shaft and the shell are driven to rotate on the bracket when the rotor rotates. A stator core is arranged between the bracket and the shell, and the stator core is mounted on the top of the outside of the bracket, and one side of the stator core is parallel to one side of the inside of the shell. A PCBA is arranged between the stator core and the bracket, and the PCBA is transversely fixed on the bracket. A lead socket is electrically arranged at the bottom of the PCBA, and the lead socket is located at the bottom of the outside of the bracket.

2. The hub brushless motor according to claim 1, characterized in that: A magnetic ring is horizontally arranged at the bottom end of the inner part of the shell, and the magnetic ring and the outer shell have the same movement direction. A plurality of magnet sheets are arranged on the side of the magnetic ring, and the plurality of magnet sheets are vertically and evenly distributed in rows and fit on the side of the inner part of the shell, and the outer shell and the plurality of magnet sheets have the same movement direction. The plurality of magnet sheets generate magnetic force between the magnetic ring and the stator core and form a magnetic field.

3. The hub brushless motor according to claim 1, characterized in that: The stator core is provided with coils, and the coils are all wound and fixed on the sides of the stator core, and the coils are electrically connected to the PCBA.

4. The hub brushless motor according to claim 1, characterized in that: A bearing sleeve is arranged between the rotating shaft and the shell, and the bearing sleeve is vertically located at the top of the shell. The rotating shaft passes through the bearing sleeve, and the bearing sleeve and the rotating shaft have the same moving direction, and the bearing sleeve makes the rotating shaft and the shell have the same moving direction.

Images