A double-stator axial magnetic field motor

Abstract

The present invention discloses a double-stator axial magnetic field motor. When the double-stator axial magnetic field motor of the present invention is used, the coolant enters the first housing from the first liquid inlet to cool the first stator core, then flows out through the second liquid outlet and enters the second housing through the second liquid inlet to cool the second stator core, and then flows out through the second liquid outlet. Since the coolant directly contacts and exchanges heat with the first stator core in the first housing and the second stator core in the second housing, the cooling efficiency of the motor can be improved, and the service life of the motor can be extended.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and more specifically, to a double-stator axial magnetic field motor. Background Art

[0002] The operating conditions of existing automobile drive motors are complex. Due to the structural characteristics of the motor itself, various losses will occur during the operation of the motor, causing the motor to heat up. In order to improve the working efficiency of the motor, a cooling system must be designed for the motor. There are two main types of cooling systems: air cooling and liquid cooling. Compared with air cooling, liquid cooling is more efficient. The existing liquid cooling system mainly adopts external cooling, that is, the coolant is in indirect contact with the core components to be cooled, and the cooling efficiency is low, which affects the service life of the motor. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is how to improve the cooling efficiency of the motor and extend the service life of the motor. To this end, the present invention provides a dual-stator axial magnetic field motor.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A double-stator axial magnetic field motor, comprising:

[0006] A first shell, wherein the first shell is provided with a first liquid inlet and a first liquid outlet;

[0007] a first stator core enclosed in a space formed by the first housing and the first stator pressing plate by a first stator pressing plate;

[0008] a second shell, the second shell being provided with a second liquid inlet and a second liquid outlet, the second liquid inlet being communicated with the first liquid outlet;

[0009] a second stator core enclosed in a space formed by the second housing and the second stator pressure plate by a second stator pressure plate;

[0010] A rotor disk is disposed between the first housing and the second housing via a rotating shaft.

[0011] In one embodiment of the present invention, the first stator core is enclosed in a space surrounded by the first housing and the first stator pressure plate through a first stator pressure plate.

[0012] In one embodiment of the present invention, a first stator outer pressure plate and a first stator inner pressure plate for pressing the first stator pressure plate are further disposed between the first shell and the second shell.

[0013] In one embodiment of the present invention, the second stator core is enclosed in a space surrounded by the second housing and the second stator pressure plate through a second stator pressure plate.

[0014] In one embodiment of the present invention, a second stator outer pressure plate and a second stator inner pressure plate for pressing the second stator pressure plate are further provided between the first shell and the second shell.

[0015] In one embodiment of the present invention, the first stator outer pressure plate and the second stator outer pressure plate correspond to the outer circumferential surface of the rotor disk.

[0016] In one embodiment of the present invention, a plurality of first cooling channels are disposed on the first stator core; and a plurality of second cooling channels are disposed on the second stator core.

[0017] In one embodiment of the present invention, the first cooling channel is a through hole penetrating the first stator core; the second cooling channel is a through hole penetrating the second stator core.

[0018] In one embodiment of the present invention, the first cooling channel is a groove provided on the end surface of the first stator core; and the second cooling channel is a groove provided on the end surface of the second stator core.

[0019] In one embodiment of the present invention, the first liquid outlet of the first shell is coaxially arranged with the second liquid inlet of the second shell.

[0020] It can be seen from the above technical solution that when the dual-stator axial magnetic field motor of the present invention is used, the coolant enters the first housing from the first liquid inlet to cool the first stator core, then flows out through the second liquid outlet and enters the second housing through the second liquid inlet to cool the second stator core, and then flows out from the second liquid outlet. Since the coolant directly contacts and exchanges heat with the first stator core in the first housing and the second stator core in the second housing, the cooling efficiency of the motor can be improved, and the service life of the motor can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a dual-stator axial magnetic field motor provided by an embodiment of the present invention;

[0023] Figure 2A schematic diagram of a three-dimensional cross-sectional structure of a dual-stator axial magnetic field motor provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a three-dimensional structure of a stator core provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the three-dimensional structure of another stator core provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of an exploded structure of a dual-stator axial magnetic field motor provided by an embodiment of the present invention;

[0027] In the figure, 100-1 is the first housing, 200-1 is the first stator core, 300-1 is the first stator pressure plate, 400 is the rotor disk, 500 is the shaft, 600-1 is the first stator outer pressure plate, and 700-1 is the first stator inner pressure plate; 100-2 is the second housing, 200-2 is the second stator core, 300-2 is the second stator pressure plate, 400 is the rotor disk, 500 is the shaft, 600-2 is the second stator outer pressure plate, and 700-2 is the second stator inner pressure plate;

[0028] 101 is the first liquid inlet, 102 is the first liquid outlet, 103 is the second liquid inlet, 104 is the second liquid outlet, and 201 is the first cooling channel. DETAILED DESCRIPTION

[0029] The core of the present invention is to provide a dual-stator axial magnetic field motor and an axial magnetic field motor to improve the cooling efficiency of the motor and extend the service life of the motor.

[0030] In addition, the embodiments shown below do not limit the invention described in the claims in any way. In addition, all the contents of the configurations shown in the embodiments below are not limited to the solutions required as the invention described in the claims.

[0031] See also Figures 1 to 5 The double-stator axial magnetic field motor in the embodiment of the present invention comprises:

[0032] A first shell 100 - 1 , wherein a first liquid inlet 101 and a first liquid outlet 102 are provided on the first shell 100 - 1 ;

[0033] A first stator core 200 - 1 enclosed in a space between the first housing 100 - 1 and the first stator pressure plate 300 - 1 by the first stator pressure plate 300 - 1;

[0034] A second housing 100 - 2 , wherein a second liquid inlet 103 and a second liquid outlet 104 are provided on the second housing 100 - 2 , and the second liquid inlet 103 is connected to the first liquid outlet 102 ;

[0035] A second stator core 200 - 2 enclosed in a space between the second housing 100 - 2 and the second stator pressure plate 300 - 2 by the second stator pressure plate 300 - 2;

[0036] The rotor disk 400 is disposed between the first housing 100 - 1 and the second housing 100 - 2 via the rotation shaft 500 .

[0037] When the dual-stator axial magnetic field motor of the present invention is used, the coolant enters the first housing 100-1 from the first liquid inlet 101 to cool the first stator core 200-1, then flows out through the second liquid outlet 104 and enters the second housing 100-2 through the second liquid inlet 103 to cool the second stator core 200-2, and then flows out from the second liquid outlet 104. Since the coolant directly contacts and exchanges heat with the first stator core 200-1 in the first housing 100-1 and the second stator core in the second housing 100-2, the cooling efficiency of the motor can be improved, and the service life of the motor can be extended.

[0038] In order to improve the sealing effect of the first stator core 200-1, the first stator core 200-1 is enclosed in the space surrounded by the first housing 100-1 and the first stator pressure plate 300-1 through the first stator pressure plate 300-1. The first stator pressure plate 300-1 is fixed in the first housing 100-1 by threads or screws.

[0039] In the embodiment of the present invention, preferably, a first stator outer pressure plate 600-1 and a first stator inner pressure plate 700-1 for pressing the first stator pressure plate 300-1 are further provided between the first housing 100-1 and the second housing 100-2. The first stator outer pressure plate 600-1 presses the outer periphery of the first stator pressure plate 300-1, and the first stator inner pressure plate 700-1 presses the inner periphery of the first stator pressure plate 300-1.

[0040] In order to improve the sealing effect of the second stator core 200-2, the second stator core 200-2 is enclosed in the space surrounded by the second housing 100-2 and the second stator pressure plate 300-2 through the second stator pressure plate 300-2. The second stator pressure plate 300-2 is fixed in the second housing 100-2 by threads or screws.

[0041] In the embodiment of the present invention, preferably, a second stator outer pressure plate 600-2 and a second stator inner pressure plate 700-2 for pressing the second stator pressure plate 300-2 are further provided between the first housing 100-1 and the second housing 100-2. The second stator outer pressure plate 600-2 presses the outer periphery of the second stator pressure plate 300-2, and the second stator inner pressure plate 700-2 presses the inner periphery of the second stator pressure plate 300-2.

[0042] The outer circumference of the rotor disk 400 corresponds to the inner wall of the first housing 100-1 or the inner wall of the second housing 100-2, that is, the rotor disk 400 is located in the first housing 100-1 or in the second housing 100-2. Alternatively, the first stator outer pressure plate 600-1 and / or the second stator outer pressure plate 600-2 correspond to the outer circumference of the rotor disk 400, that is, the rotor disk 400 is located in the first stator outer pressure plate 600-1 and / or the second stator outer pressure plate 600-2.

[0043] In order to further improve the cooling effect of the first stator core 200-1, in one embodiment of the present invention, the first stator core 200-1 is provided with a plurality of first cooling channels 201; the second stator core 200-2 is provided with a plurality of second cooling channels. The coolant entering the first housing 100-1 through the first liquid inlet 101 can directly cool the first stator core 200-1 through the first cooling channels 201 provided on the first stator core 200-1.

[0044] For example: the first cooling channel 201 is a through hole that runs through the first stator core 200-1, and the cross section of the through hole is circular, elliptical, rectangular, etc. Or the first cooling channel 201 is a groove set on the end face of the first stator core 200-1 and is surrounded by the first shell 100-1. It can be understood that: a groove is set on the end face of the first stator core 200-1, and the corresponding first shell 100-1 is a planar structure; the first cooling channel 201 is surrounded by the groove and the surface of the first shell 100-1; or a groove is set on the first stator core 200-1, and the corresponding surface of the first shell 100-1 is set on the groove, and the two grooves are connected to form the first cooling channel 201. The cooling channel is a through hole that runs through the stator core; or the cooling channel is a groove set on the end face of the stator core and is surrounded by the shell.

[0045] In order to further improve the cooling effect of the second stator core 200-2, in one embodiment of the present invention, a plurality of second cooling channels are provided on the second stator core 200-2; a plurality of second cooling channels are provided on the second stator core 200-2. The coolant entering the second housing 100-2 through the second liquid inlet 103 can directly cool the second stator core 200-2 through the second cooling channels provided on the second stator core 200-2.

[0046] For example: the second cooling channel is a through hole that runs through the second stator core 200-2, and the cross-section of the through hole is circular, elliptical, rectangular, etc. Or the second cooling channel is a groove arranged on the end face of the second stator core 200-2 and is surrounded by the second shell 100-2. It can be understood that: a groove is arranged on the end face of the second stator core 200-2, and the corresponding second shell 100-2 is a planar structure; the second cooling channel is surrounded by the groove and the surface of the second shell 100-2; or a groove is arranged on the second stator core 200-2, and the corresponding surface of the second shell 100-2 is arranged with a groove, and the two grooves are connected to form the second cooling channel. The cooling channel is a through hole that runs through the stator core; or the cooling channel is a groove arranged on the end face of the stator core and is surrounded by the shell.

[0047] The first liquid outlet 102 of the first shell 100-1 is connected to the second liquid inlet 103 of the second shell 100-2. The connection can be made through an external pipeline, or the first liquid outlet 102 of the first shell 100-1 is connected to the second liquid inlet 103 of the second shell 100-2. That is, the first liquid outlet 102 and the second liquid inlet 103 are both arranged on the end surface, and when the first shell 100-1 and the second shell 100-2 are docked, the first liquid outlet 102 and the second liquid inlet 103 are automatically connected.

[0048] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-stator axial magnetic field motor, characterized in that: include: A first shell, wherein the first shell is provided with a first liquid inlet and a first liquid outlet; a first stator core enclosed in a space surrounded by the first housing and the first stator pressing plate by a first stator pressing plate; the first stator pressing plate is press-fitted onto an outer peripheral surface of the first stator core; a second shell, the second shell being provided with a second liquid inlet and a second liquid outlet, the second liquid inlet being communicated with the first liquid outlet; a second stator core enclosed in a space formed by the second housing and the second stator pressing plate by a second stator pressing plate; the second stator pressing plate being press-fitted onto an outer peripheral surface of the second stator core; A rotor disk disposed between the first housing and the second housing via a rotating shaft; The first stator core is enclosed in a space surrounded by the first housing and the first stator pressing plate through the first stator pressing plate; A first stator outer pressure plate and a first stator inner pressure plate for pressing the first stator pressure plate are further provided between the first housing and the second housing; the first stator outer pressure plate presses the outer periphery of the first stator pressure plate, and the first stator inner pressure plate presses the inner periphery of the stator pressure plate; The first stator core is provided with a plurality of first cooling channels; the second stator core is provided with a plurality of second cooling channels.

2. The dual-stator axial magnetic field motor according to claim 1, characterized in that: The second stator core is enclosed in a space surrounded by the second housing and the second stator pressure plate through a second stator pressure plate.

3. The dual-stator axial magnetic field motor according to claim 2, characterized in that: A second stator outer pressure plate and a second stator inner pressure plate for pressing the second stator pressure plate are further arranged between the first shell and the second shell.

4. The dual-stator axial magnetic field motor according to claim 3, characterized in that: The first stator outer pressure plate and the second stator outer pressure plate correspond to the outer circumferential surface of the rotor disk.

5. The dual-stator axial magnetic field motor according to claim 1, characterized in that: The first cooling channel is a through hole penetrating the first stator core; the second cooling channel is a through hole penetrating the second stator core.

6. The dual-stator axial magnetic field motor according to claim 1, characterized in that: The first cooling channel is a groove provided on the end surface of the first stator core; the second cooling channel is a groove provided on the end surface of the second stator core.

7. The double-stator axial magnetic field motor according to any one of claims 1 to 6, characterized in that: The first liquid outlet of the first shell is coaxially arranged with the second liquid inlet of the second shell.

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