Double-stator axial magnetic flux motor

Abstract

The utility model provides a double-stator axial magnetic flux motor, which comprises a first shell, one side of the first shell is fixedly connected with a second shell through bolts, one side of the first shell and one side of the second shell are uniformly provided with air outlets, the outer side walls of the first shell and the second shell are uniformly provided with air inlets, and the air inlets are communicated with the first shell and the second shell. The inner side wall of the first shell and the inner side wall of the second shell are fixedly connected with bearings, and rotating shaft assemblies are arranged in the bearings. According to the utility model, the cooling liquid in the liquid storage tank absorbs heat generated when the stators work, the heat dissipation area is increased through the heat dissipation fin plates, and the rotation of the fan blades is utilized to accelerate the air flow speed, so that the heat dissipation effect of the double-stator axial flux motor is improved, and the working environment temperature in the motor is reduced. The rotating shaft drives the fan blades to rotate, the rotating speed of the rotating shaft is used for controlling the rotating speed of the fan blades, when the rotating speed of the motor is increased, the air flowing speed is increased, and self-adaptive adjustment is achieved.

Description

Technical Field

[0001] The utility model relates to a motor, in particular to a double-stator axial-flux motor, belonging to the technical field of axial-flux motors. Background Technique

[0002] The axial-flux motor is a unique electric motor, and its remarkable feature is that the main magnetic field is distributed axially instead of the traditional radial distribution. The design of this motor enables the stator and rotor cores to form a disc structure, and the stator and rotor are arranged along the same axis, thus realizing a more compact and flat motor structure. Compared with the traditional radial-flux motor, the axial-flux motor has a higher torque density and power-to-weight ratio. The axial-flux motor is widely used in fields such as aerospace, electric vehicles, and wind power generation.

[0003] When the axial-flux motor is working, due to the contact between the stator teeth and the winding, heat is concentrated. In the common double-stator axial-flux motor, the rotor is arranged between two parts of the stator. When the temperatures of the two parts of the stator are relatively high, the rotor will also operate in a high-temperature environment, affecting the working state of the motor. Moreover, the distance between the stator teeth and the cooling flow channels of the stator housing is relatively far, resulting in poor heat dissipation effect and a relatively high internal environmental temperature of the motor. Therefore, a double-stator axial-flux motor is proposed. Summary of the Utility Model

[0004] In view of this, the utility model provides a double-stator axial-flux motor to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the utility model is realized as follows: A double-stator axial-flux motor includes a first housing. One side of the first housing is fixedly connected to a second housing by bolts. The first housing and the second housing are evenly provided with air exhaust ports on one side, and the outer side walls of the first housing and the second housing are evenly provided with air intake ports. The inner side walls of the first housing and the second housing are fixedly connected with bearings, and a rotating shaft assembly is arranged inside the bearings. The rotating shaft assembly includes a rotating shaft main body, a connecting ring, and fan blades;

[0006] The rotating shaft main body is rotatably connected inside the bearing. A connecting ring is fixedly connected to the outer side wall of the rotating shaft main body, and fan blades are evenly fixedly connected to the outer side wall of the connecting ring. The rotation of the fan blades is used to accelerate the air flow speed, thereby improving the heat dissipation effect of the double-stator axial-flux motor and reducing the internal working environment temperature of the motor. The fan blades are driven to rotate by the rotating shaft main body, and the rotation speed of the fan blades is controlled by the rotation speed of the rotating shaft main body. When the motor speed increases, the air flow speed also increases, realizing adaptive adjustment.

[0007] Further preferably: The inner side walls of the first housing and the second housing are fixedly connected with sleeves, and the fan blades are arranged inside the sleeves.

[0008] Further preferably, a stator bracket is fixedly connected to the inner side walls of the first housing and the second housing.

[0009] Further preferably, a liquid storage tank is fixedly connected to one side of the stator bracket, and the liquid storage tank has an annular and internally hollow structure.

[0010] Further preferably, heat dissipation fins are uniformly fixedly connected to the outer side wall of the liquid storage tank.

[0011] Further preferably, stator windings are uniformly installed on one side of the stator bracket.

[0012] Further preferably, a rotor bracket is fixedly connected to the outer side wall of the rotating shaft body. The rotor bracket is arranged between two stator brackets, and permanent magnets are uniformly fixedly connected to the inside of the rotor bracket.

[0013] Further preferably, a mounting seat is fixedly connected to one side of the second housing.

[0014] Due to the adoption of the above technical solutions in the embodiments of the present utility model, it has the following advantages:

[0015] First, the present utility model absorbs the heat generated by the stator during operation through the coolant inside the liquid storage tank, increases the heat dissipation area through the heat dissipation fins, and utilizes the rotation of the fan blades to accelerate the air flow speed, thereby improving the heat dissipation effect of the double-stator axial-flux motor and reducing the working environment temperature inside the motor.

[0016] Second, the present utility model drives the fan blades to rotate through the rotating shaft, and controls the rotation speed of the fan blades by using the rotation speed of the rotating shaft. When the motor speed increases, the air flow speed also increases accordingly, realizing adaptive adjustment.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments, and features, other aspects, embodiments, and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application 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 following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a structural diagram of the present utility model;

[0020] Figure 2 Internal structure diagram of the first housing of the present utility model;

[0021] Figure 3 Structure diagram after removing the first and second housings of the present utility model;

[0022] Figure 4 Structure diagram of the rotor bracket of the present utility model;

[0023] Figure 5 Side view structure diagram of the present utility model.

[0024] Reference numerals: 11, first housing; 12, second housing; 13, air outlet; 14, air inlet; 15, bearing; 16, sleeve; 17, stator bracket; 18, liquid storage tank; 19, heat dissipation fin; 20, stator winding; 21, rotor bracket; 22, permanent magnet; 23, mounting seat; 30, shaft assembly; 31, shaft main body; 32, connecting ring; 33, fan blade. Detailed description of the specific implementation

[0025] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] The embodiments of the present utility model will be described in detail below with reference to the drawings.

[0027] As Figures 1-5 shown, an embodiment of the present utility model provides a double-stator axial-flux motor, including a first housing 11. One side of the first housing 11 is fixedly connected to a second housing 12 by bolts. Air outlets 13 are evenly arranged on one side of the first housing 11 and the second housing 12. Air inlets 14 are evenly arranged on the outer side walls of the first housing 11 and the second housing 12. Bearings 15 are fixedly connected to the inner side walls of the first housing 11 and the second housing 12. A shaft assembly 30 is arranged inside the bearings 15. The shaft assembly 30 includes a shaft main body 31, a connecting ring 32, and a fan blade 33. The first housing 11 and the second housing 12 are fixed into a whole by bolts, so as to facilitate the staff to disassemble and maintain the motor. During the heat dissipation process, the fan blade 33 is driven to rotate by the shaft main body 31. External cold air enters the inside of the housing through the air inlet 14, and the temperature rises after heat exchange on the surface of the heat dissipation fins 19, and is discharged through the air outlet 13. The bearings 15 are used to reduce the frictional resistance suffered by the shaft main body 31 during rotation;

[0028] Inside the bearing 15, a rotating shaft body 31 is rotatably connected. A connecting ring 32 is fixedly connected to the outer side wall of the rotating shaft body 31. Uniformly fixed to the outer side wall of the connecting ring 32 are fan blades 33. The fan blades 33 are fixed to the rotating shaft body 31 through the connecting ring 32.

[0029] In this embodiment, specifically: On the inner side walls of the first housing 11 and the second housing 12, a sleeve 16 is fixedly connected. The fan blades 33 are arranged inside the sleeve 16. The sleeve 16 is used to control the air flow direction so that the air enters one end of the sleeve 16 after passing through the surface of the heat dissipation fins 19.

[0030] In this embodiment, specifically: On the inner side walls of the first housing 11 and the second housing 12, a stator support 17 is fixedly connected. The stator support 17 is used to support the stator winding 20.

[0031] In this embodiment, specifically: On one side of the stator support 17, a liquid storage tank 18 is fixedly connected. The liquid storage tank 18 is an annular structure with a hollow interior. The coolant is stored inside the liquid storage tank 18.

[0032] In this embodiment, specifically: Uniformly fixed to the outer side wall of the liquid storage tank 18 are heat dissipation fins 19. The heat dissipation fins 19 are used to increase the heat dissipation area of the coolant inside the liquid storage tank 18, accelerate the heat dissipation efficiency, and avoid heat accumulation.

[0033] In this embodiment, specifically: On one side of the stator support 17, the stator windings 20 are uniformly installed. The stator windings 20 are wound around the stator core, and the stator core is fixedly connected to one side of the stator support 17.

[0034] In this embodiment, specifically: On the outer side wall of the rotating shaft body 31, a rotor support 21 is fixedly connected. The rotor support 21 is arranged between the two stator supports 17. Uniformly fixed inside the rotor support 21 are permanent magnets 22. When an electric current is applied to the stator windings 20 to generate a magnetic field, the permanent magnets 22 are forced to rotate in the magnetic field, driving the rotor support 21 and the rotating shaft body 31 to rotate.

[0035] In this embodiment, specifically: On one side of the second housing 12, a mounting seat 23 is fixedly connected. The bearing 15 on one side of the second housing 12 is installed inside the mounting seat 23.

[0036] When the utility model works: the stator winding 20 is energized to generate a magnetic field, the permanent magnet 22 is forced to rotate in the magnetic field, driving the rotor bracket 21 and the rotating shaft body 31 to rotate. During the energization process of the stator winding 20, the temperature continuously rises. The coolant inside the liquid storage tank 18 on one side of the stator bracket 17 absorbs the heat generated during the operation of the stator, and the heat dissipation area is increased through the heat dissipation fins 19 to accelerate the heat dissipation efficiency. The rotation of the fan blade 33 is used to accelerate the air flow speed, thereby improving the heat dissipation effect of the double-stator axial-flux motor and reducing the working environment temperature inside the motor. The fan blade 33 is driven to rotate by the rotating shaft body 31, and the rotation speed of the fan blade 33 is controlled by the rotation speed of the rotating shaft body 31. When the motor speed increases, the air flow speed also increases, realizing adaptive adjustment.

[0037] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A dual-stator axial flux motor, comprising a first housing (11), characterized in that: One side of the first shell (11) is fixedly connected to the second shell (12) by bolts, one side of the first shell (11) and the second shell (12) is evenly provided with an air outlet (13), the outer side walls of the first shell (11) and the second shell (12) are evenly provided with an air inlet (14), the inner side walls of the first shell (11) and the second shell (12) are fixedly connected with a bearing (15), the interior of the bearing (15) is provided with a rotating shaft assembly (30), and the rotating shaft assembly (30) comprises a rotating shaft body (31), a connecting ring (32) and a fan blade (33); The bearing (15) is rotatably connected to a rotating shaft body (31), an outer wall of the rotating shaft body (31) is fixedly connected to a connecting ring (32), and a fan blade (33) is evenly and fixedly connected to an outer wall of the connecting ring (32).

2. A dual-stator axial flux motor according to claim 1, characterized in that: The inner side walls of the first shell (11) and the second shell (12) are fixedly connected with a sleeve (16), and the fan blade (33) is arranged inside the sleeve (16).

3. A dual-stator axial flux motor according to claim 2, characterized in that: The inner side walls of the first shell (11) and the second shell (12) are fixedly connected with a stator bracket (17).

4. A dual-stator axial flux motor according to claim 3, characterized in that: A liquid storage tank (18) is fixedly connected to one side of the stator bracket (17), and the liquid storage tank (18) is an annular internal hollow structure.

5. A dual-stator axial flux motor according to claim 4, characterized in that: The outer side wall of the liquid storage tank (18) is evenly and fixedly connected with heat dissipation fins (19).

6. A dual-stator axial flux motor according to claim 5, characterized in that: Stator windings (20) are evenly mounted on one side of the stator bracket (17).

7. A dual-stator axial flux motor according to claim 6, characterized in that: The outer wall of the rotating shaft body (31) is fixedly connected to a rotor bracket (21), the rotor bracket (21) is arranged between two stator brackets (17), and the interior of the rotor bracket (21) is evenly fixedly connected to permanent magnets (22).

8. The dual-stator axial flux motor according to claim 1, characterized in that: A mounting seat (23) is fixedly connected to one side of the second shell (12).

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