Axial flux motor stator heat dissipation structure

Abstract

The utility model provides an axial magnetic flux motor stator heat radiation structure comprising a heat radiation assembly which comprises a support plate, a liquid storage tank, a first liquid inlet pipe, a micro pump, a spiral heat exchange pipe, a second liquid inlet pipe, a heat conduction plate, a liquid return pipe and a one-way valve. One side of the supporting plate is fixedly connected with a liquid storage tank, the outer side wall of the liquid storage tank communicates with a first liquid inlet pipe, a micro pump is installed on the first liquid inlet pipe, and one end of the first liquid inlet pipe communicates with a spiral heat exchange pipe. Cooling liquid is stored through the liquid storage tank, after the motor works, the temperature of the stator is gradually increased, the cooling liquid is driven to circulate through the micro pump, and the stroke of the cooling liquid is increased through the spiral heat exchange pipe, so that the cooling liquid is fully cooled outside the motor and then returns to the interior of the motor to cool the stator; the stator cooling effect of the axial magnetic flux motor is improved, and the stability and the service life of the motor are improved.

Description

Technical Field

[0001] The utility model relates to a heat dissipation mechanism, in particular to a heat dissipation structure of an axial flux motor stator, belonging to the technical field of axial flux motors. Background Art

[0002] The axial-flux motor is a unique electric motor characterized by an axial distribution of the main magnetic field, rather than the traditional radial distribution. This motor design utilizes a disc-like structure with the stator and rotor cores aligned along the same axial direction, resulting in a more compact and flatter motor structure. Compared to traditional radial-flux motors, axial-flux motors offer higher torque density and a higher power-to-weight ratio. Axial-flux motors are widely used in aerospace, electric vehicles, wind power generation, and other fields.

[0003] When an axial flux motor is working, the stator temperature will rise after the stator winding is energized for a long time, making the internal ambient temperature of the motor at a high level, which is not conducive to the stable operation of the motor. Common natural cooling or air cooling cannot achieve a good heat dissipation effect, resulting in the stability and life of the axial flux motor being affected by high temperature. Therefore, a stator heat dissipation structure for an axial flux motor is proposed. Utility Model Content

[0004] In view of this, the present invention provides an axial flux motor stator heat dissipation structure 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 achieved as follows: an axial flux motor stator heat dissipation structure includes a heat dissipation component, the heat dissipation component includes a support plate, a liquid storage tank, a first liquid inlet pipe, a micro pump, a spiral heat exchange tube, a second liquid inlet pipe, a heat conducting plate, a liquid return pipe and a one-way valve;

[0006] One side of the support plate is fixedly connected to a liquid storage tank, the outer wall of the liquid storage tank is connected to a first liquid inlet pipe, the first liquid inlet pipe is installed with a micro pump, one end of the first liquid inlet pipe is connected to a spiral heat exchange tube, one end of the spiral heat exchange tube is connected to a second liquid inlet pipe, the heat conduction plate is an internal hollow structure, one end of the second liquid inlet pipe is connected to the heat conduction plate, the outer wall of the heat conduction plate is connected to a liquid return pipe, one end of the liquid return pipe is connected to the liquid storage tank, and a one-way valve is installed on the liquid return pipe. When the micro pump is working, the coolant inside the liquid storage tank is sent into the spiral heat exchange tube, the spiral heat exchange tube is used to reduce the temperature of the coolant, and then the low-temperature coolant is sent into the heat conduction plate to cool the stator, thereby improving the heat dissipation effect of the stator of the axial flux motor. The one-way valve is used to prevent the coolant from flowing back.

[0007] Further preferably, the heat dissipation assembly is mounted on a main assembly, and the main assembly includes a shell and an end cover;

[0008] Two end covers are symmetrically fixedly connected on both sides of the shell by bolts.

[0009] Further preferably: the heat dissipation assembly further includes a groove and a fixing plate;

[0010] The outer side wall of the shell is provided with a groove, the inner side wall of the groove is fixedly connected with a fixing plate, and the spiral heat exchange tube is fixedly connected to the inner side wall of the fixing plate.

[0011] Further preferably, through holes and through grooves are evenly formed on one side of the end cover.

[0012] Further preferably, a bearing is fixedly connected to the inner side wall of the end cover.

[0013] Further preferably, the bearing is internally rotatably connected to a rotating shaft.

[0014] Further preferably, the outer side wall of the rotating shaft is fixedly connected with a connecting ring, and the outer side wall of the connecting ring is evenly fixedly connected with fan blades.

[0015] Further preferably, the outer side wall of the rotating shaft is fixedly connected to the rotor, and the inner side wall of the shell is fixedly connected to the stator.

[0016] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0017] The utility model stores coolant in a liquid storage tank. After the motor is working, the temperature of the stator gradually rises. The coolant is driven to circulate by a micro pump, and the coolant stroke is increased by a spiral heat exchange tube. The coolant is fully cooled outside the motor and then returns to the inside of the motor to cool the stator, thereby improving the cooling effect of the axial flux motor stator, thereby improving the stability and service life of the motor.

[0018] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is an enlarged structural diagram of point A of the present utility model;

[0022] Figure 3 This is a diagram of the internal structure of the shell of the utility model;

[0023] Figure 4 This is a structural diagram of the heat conducting plate of the present utility model;

[0024] Figure 5 This is a structural diagram of the liquid return pipe of the present utility model.

[0025] Figure numerals: 10, main body assembly; 11, shell; 12, end cover; 13, through hole; 14, through groove; 15, bearing; 16, rotating shaft; 17, connecting ring; 18, fan blade; 19, rotor; 110, stator; 20, heat dissipation assembly; 21, support plate; 22, liquid storage tank; 23, first liquid inlet pipe; 24, micro pump; 25, spiral heat exchange tube; 26, groove; 27, fixing plate; 28, second liquid inlet pipe; 29, heat conduction plate; 210, return liquid pipe; 211, one-way valve. DETAILED DESCRIPTION

[0026] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0027] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, the embodiment of the present invention provides an axial flux motor stator heat dissipation structure, including a heat dissipation assembly 20, the heat dissipation assembly 20 includes a support plate 21, a liquid storage tank 22, a first liquid inlet pipe 23, a micro pump 24, a spiral heat exchange tube 25, a second liquid inlet pipe 28, a heat conducting plate 29, a liquid return pipe 210 and a one-way valve 211;

[0029] A liquid storage tank 22 is fixedly connected to one side of the support plate 21. The outer wall of the liquid storage tank 22 is connected to a first liquid inlet pipe 23. A micro pump 24 is installed on the first liquid inlet pipe 23. One end of the first liquid inlet pipe 23 is connected to a spiral heat exchange tube 25. One end of the spiral heat exchange tube 25 is connected to a second liquid inlet pipe 28. The heat conducting plate 29 has an internal hollow structure. One end of the second liquid inlet pipe 28 is connected to the heat conducting plate 29. The outer wall of the heat conducting plate 29 is connected to a liquid return pipe 210. One end of the liquid return pipe 210 is connected to the liquid storage tank 22. A one-way valve 211 is installed on the liquid return pipe 210. When the micro pump 24 is working, the coolant inside the liquid storage tank 22 is sent into the spiral heat exchange tube 25. The spiral heat exchange tube 25 is used to reduce the temperature of the coolant, and then the low-temperature coolant is sent into the heat conducting plate 29 to cool the stator 110, thereby improving the heat dissipation effect of the axial flux motor stator 110. The one-way valve 211 is used to prevent the coolant from flowing back.

[0030] In this embodiment, specifically: the heat dissipation assembly 20 is installed on the main assembly 10, and the main assembly 10 includes a shell 11 and an end cover 12;

[0031] Two end covers 12 are symmetrically fixedly connected to both sides of the housing 11 by bolts. The end covers 12 are fixed by bolts to facilitate maintenance and disassembly of the axial flux motor by workers.

[0032] In this embodiment, specifically: the heat dissipation assembly 20 further includes a groove 26 and a fixing plate 27;

[0033] A groove 26 is provided on the outer wall of the shell 11, and a fixing plate 27 is fixedly connected to the inner wall of the groove 26. The spiral heat exchange tube 25 is fixedly connected to the inner wall of the fixing plate 27. The spiral heat exchange tube 25 can increase the travel of the coolant, so that the coolant can be fully cooled outside the motor.

[0034] In this embodiment, specifically: through holes 13 and through slots 14 are evenly formed on one side of the end cover 12 , and the through holes 13 and the through slots 14 are used for exchanging air inside the motor and outside air.

[0035] In this embodiment, specifically: a bearing 15 is fixedly connected to the inner side wall of the end cover 12 , and a bearing 15 is provided on each of the end covers 12 on both sides to stably support the rotating shaft 16 .

[0036] In this embodiment, specifically: the bearing 15 is internally rotatably connected to the rotating shaft 16 , and the bearing 15 is used to reduce the friction resistance during the rotation of the rotating shaft 16 .

[0037] In this embodiment, specifically: the outer wall of the rotating shaft 16 is fixedly connected with a connecting ring 17, and the outer wall of the connecting ring 17 is evenly fixedly connected with fan blades 18. During the rotation of the rotating shaft 16, the connecting ring 17 and the fan blades 18 are driven to rotate, thereby accelerating the air flow speed.

[0038] In this embodiment, specifically: the outer wall of the rotating shaft 16 is fixedly connected to the rotor 19, and the inner wall of the shell 11 is fixedly connected to the stator 110. The stator winding on the stator 110 is energized to generate a magnetic field, which drives the rotor 19 and the rotating shaft 16 to rotate, and mechanical energy is output through the rotation of the rotating shaft 16.

[0039] When the present invention is working: the stator winding on the stator 110 is energized to generate a magnetic field, which drives the rotor 19 and the rotating shaft 16 to rotate. At the same time, the temperature of the stator 110 continues to rise. During the rotation of the rotating shaft 16, the fan blades 18 are driven to rotate, which speeds up the air flow speed and reduces the internal ambient temperature of the motor. At the same time, the coolant is driven to circulate through the micro pump 24, and the spiral heat exchange tube 25 is used to increase the stroke of the coolant. The coolant is fully cooled outside the motor before entering the heat conduction plate 29, and the stator 110 is cooled, thereby improving the heat dissipation effect of the stator 110 of the axial flux motor, thereby improving the stability and service life of the motor.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An axial flux motor stator heat dissipation structure, comprising a heat dissipation assembly (20), characterized in that: The heat dissipation assembly (20) comprises a support plate (21), a liquid storage tank (22), a first liquid inlet pipe (23), a micro pump (24), a spiral heat exchange tube (25), a second liquid inlet pipe (28), a heat conducting plate (29), a liquid return pipe (210) and a one-way valve (211); One side of the support plate (21) is fixedly connected to a liquid storage tank (22); the outer wall of the liquid storage tank (22) is connected to a first liquid inlet pipe (23); a micro pump (24) is installed on the first liquid inlet pipe (23); one end of the first liquid inlet pipe (23) is connected to a spiral heat exchange pipe (25); one end of the spiral heat exchange pipe (25) is connected to a second liquid inlet pipe (28); the heat conduction plate (29) is an internal hollow structure; one end of the second liquid inlet pipe (28) is connected to the heat conduction plate (29); the outer wall of the heat conduction plate (29) is connected to a liquid return pipe (210); one end of the liquid return pipe (210) is connected to the liquid storage tank (22); and a one-way valve (211) is installed on the liquid return pipe (210).

2. The axial flux motor stator heat dissipation structure according to claim 1, characterized in that: The heat dissipation assembly (20) is mounted on a main assembly (10), and the main assembly (10) includes a shell (11) and an end cover (12); Two end covers (12) are symmetrically fixedly connected to both sides of the housing (11) by bolts.

3. The axial flux motor stator heat dissipation structure according to claim 2, characterized in that: The heat dissipation assembly (20) further includes a groove (26) and a fixing plate (27); The outer wall of the shell (11) is provided with a groove (26), the inner wall of the groove (26) is fixedly connected to a fixing plate (27), and the spiral heat exchange tube (25) is fixedly connected to the inner wall of the fixing plate (27).

4. The axial flux motor stator heat dissipation structure according to claim 2, characterized in that: One side of the end cover (12) is evenly provided with through holes (13) and through grooves (14).

5. The axial flux motor stator heat dissipation structure according to claim 4, characterized in that: A bearing (15) is fixedly connected to the inner side wall of the end cover (12).

6. The axial flux motor stator heat dissipation structure according to claim 5, characterized in that: The bearing (15) is internally rotatably connected to a rotating shaft (16).

7. The axial flux motor stator heat dissipation structure according to claim 6, characterized in that: The outer side wall of the rotating shaft (16) is fixedly connected with a connecting ring (17), and the outer side wall of the connecting ring (17) is evenly fixedly connected with fan blades (18).

8. The axial flux motor stator heat dissipation structure according to claim 7, characterized in that: The outer side wall of the rotating shaft (16) is fixedly connected to a rotor (19), and the inner side wall of the housing (11) is fixedly connected to a stator (110).

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