CN218678605U

CN218678605U - Axial flux motor coil disc

Info

Publication number: CN218678605U
Application number: CN202221248210.9U
Authority: CN
Inventors: 胡积献; 苏绍禹; 沈光明; 胡依翎; 杨皓天; 胡越豪; 张平; 王秋懿; 杨荣; 李子腾
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-19
Filing date: 2022-05-19
Publication date: 2023-03-21
Anticipated expiration: 2032-05-19

Abstract

The utility model provides an axial magnetic flux motor coil panel, including being used for cup jointing the coil mounting panel at the motor epaxial, the face of coil mounting panel is located the radial position of motor shaft, the coil mounting panel is provided with a plurality ofly, and is a plurality of the coil mounting panel is coincide in proper order along the motor shaft axial, the coil mounting panel is including being located the lantern ring that its middle part is used for connecting the motor shaft, the even interval arrangement of lantern ring peripheral part has a plurality of sector plates, and is single interval region between the adjacent sector plate on the coil mounting panel constitutes the radiating area, the sector plate upper berth is equipped with coil assembly, and is adjacent coil assembly and radiating area mutual disposition on the coil mounting panel. In the scheme, the coil group is opposite to the heat dissipation area, so that heat generated by the coil group can be directly transferred to the heat dissipation area for heat dissipation, and the phenomenon that the heat is concentrated to cause local heat to affect the electrical performance of the coil is prevented.

Description

Axial flux motor coil disc

Technical Field

The utility model relates to a motor coil winding field specifically is exactly an axial magnetic flux motor coil panel.

Background

The permanent magnet motor includes a permanent magnet axial magnetic field motor, such as a disk motor, and a rotor assembly of the permanent magnet axial magnetic field motor includes a disk rotor sheet provided with a plurality of rotor slots and a number of permanent magnets equal to the number of the rotor slots. Compared with the traditional radial magnetic field permanent magnet motor, the axial magnetic field permanent magnet motor has the remarkable advantages of compact structure, high torque density, high efficiency and the like. Wherein the coil winding can be used as a stator or a rotor.

There is a PCB printed board coil in the prior art, which means that a circuit is etched on a substrate using a PCB print, and the circuit is used as a coil winding, which has many advantages: such as only 10 to 20 percent of the weight of the silicon steel sheet and the enameled wire, greatly reduced price, almost no eddy current loss of the metal iron core, easy mass production and manufacture, and the like. The existing PCBPCB coil sets a multi-phase circuit in the same layer of PCB, so that heat is concentrated and not easy to dissipate, and meanwhile, the open circuit phenomenon between phase conductors is easy to cause.

China CN109995153A discloses a stator structure of a multi-combination adjustable PCB concentrated winding, the scheme is: is formed by stacking at least three concentrated coils and at least four printed circuit layers; each concentrated coil consists of at least one positive sub-coil, at least one negative sub-coil and a through hole conductor column, the positive sub-coil and the negative sub-coil are respectively positioned in two different printed circuit layers, the positive sub-coil is connected with a positive outgoing line terminal of the concentrated coil, the negative sub-coil is connected with a negative outgoing line terminal of the concentrated coil, and finally the positive sub-coil and the negative sub-coil are connected in series through the through hole conductor column to form a complete concentrated coil. However, the stacked coil solution also has the problem that the coil is difficult to dissipate heat.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a strengthen radiating axial magnetic flux motor coil panel.

In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides an axial magnetic flux motor coil panel, is including being used for cup jointing the coil mounting panel at the motor epaxial, the face of coil mounting panel is located the radial position of motor shaft, the coil mounting panel is provided with a plurality ofly, and is a plurality of the coil mounting panel is coincide in proper order along the motor shaft axial, the coil mounting panel is including being located its middle part the lantern ring that is used for connecting the motor shaft, the even interval arrangement of lantern ring peripheral part has a plurality of sector plates, and is single interval region between the adjacent sector plate on the coil mounting panel constitutes the radiating area, the sector plate upper berth is equipped with coil assembly, and is adjacent coil assembly and radiating area mutual disposition on the coil mounting panel.

In the scheme, the coil group is opposite to the heat dissipation area, so that heat generated by the coil group can be directly transferred to the heat dissipation area for heat dissipation, and the phenomenon that the heat is concentrated to cause local heat generation to influence the electrical performance of the coil is prevented.

Preferably, the coil group is wound into a sector coil, the included angle between the two straight sides of a sector area formed by the sector coil is 1/2 of the included angle between the two straight sides of the sector plate, the included angle between the two straight sides of the heat dissipation area is the same as the included angle between the two straight sides of the sector coil, and one straight side of the sector area formed by the coil group is flush with one straight side of the sector plate.

Preferably, the fan-shaped plates are arranged in two, and the included angle between two straight edges of a single fan-shaped plate is 120 degrees.

Preferably, the coil assembly is arranged on the upper surface of the coil mounting plate, and two ends of the coil assembly axially penetrate through the coil mounting plate and extend to the outer end plate edge of the coil mounting plate from the position of the heat dissipation area.

Preferably, the heat dissipation area is filled with a heat conduction material or a cooling unit.

Preferably, the coil groups on a single coil mounting plate are connected in series, and the coil groups on a plurality of coil mounting plates are connected in series.

Preferably, the coil groups on a single coil mounting plate are connected in series, and the coil groups on a plurality of coil mounting plates are connected in parallel.

Preferably, the coil assembly is a PCB printed circuit disposed on the sector plate.

Preferably, the adjacent coil mounting plates are bonded by a heat-conducting adhesive.

Preferably, the copper sheet surface of the PCB printed circuit is coated with silver paste.

Drawings

FIG. 1 is an exploded view of the present invention;

description of reference numerals: 10. a coil mounting plate; 11. a collar; 12. a sector plate; 13. a heat dissipation area; 20. and a coil assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that the terms "bottom", "outer wall", "front and back", and the like, are used for indicating the orientation or positional relationship based on the state of the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides an axial magnetic flux motor coil panel, is including being used for cup jointing the coil mounting panel 10 on the motor shaft, the face of coil mounting panel 10 is located the radial position of motor shaft, coil mounting panel 10 is provided with a plurality ofly, and is a plurality of coil mounting panel 10 is coincide in proper order along the motor shaft axial, coil mounting panel 10 is including being located its middle part the lantern ring 11 that is used for connecting the motor shaft, the even interval arrangement in lantern ring 11 periphery has a plurality of sector plates 12, and is single interval region between the adjacent sector plate 12 constitutes radiating area 13 on the coil mounting panel 10, sector plate 12 upper berth is equipped with coil assembly 20, and is adjacent coil assembly 20 on the coil mounting panel 10 and radiating area 13 mutual disposition. Wherein the coil mounting board 10 is preferably three-layered. The relative arrangement means that the coil groups 20 and the heat dissipation areas 13 are correspondingly arranged in the axial direction of the motor shaft and have the same position in the circumferential direction, so that the coil groups 20 can be exposed to the heat dissipation areas 13, the coil groups 20 on the adjacent coil mounting plates 10 have the same position as the heat dissipation areas 13, and one side surfaces of the coil groups 20 are exposed to the heat dissipation areas 13.

In the above scheme, the heat dissipation area 13 still exists in the overlapped coil mounting plate 10, the heat dissipation area 13 is a sector-shaped cavity area, and the coil assembly 20 is opposite to the heat dissipation area 13, so that heat generated by the coil assembly 20 can be directly transferred to the heat dissipation area 13 for heat dissipation, and the phenomenon that the heat is concentrated to cause local heat to affect the electrical performance of the coil is prevented. When heat dissipation area 13 is the cavity state, coil panel in this application just can produce certain air current when the rotor and take away the heat in heat dissipation area 13, if the coil panel in this application is as the stator, the rotation of rotor can produce certain air current equally and take away heat dissipation area 13 heat. In addition, the scheme in the application can be applied to not only the motor but also the generator.

Preferably, the coil assembly 20 is wound to form a sector coil, an included angle between two straight sides of a sector formed by the sector coil is 1/2 of an included angle between two straight sides of the sector plate 12, the included angle between two straight sides of the heat dissipation area 13 is the same as the included angle between two straight sides of the sector coil, and one straight side of the sector formed by the coil assembly 20 is flush with one straight side of the sector plate 12. Thus, after the coil assembly 20 is overlapped, one side is completely exposed in the heat dissipation area 13, the other side is the sector plate 12, meanwhile, the coil assembly 20 covers the area of the upper half of the sector plate 12, and the blank half of the sector plate 12 is opposite to the back side of the coil assembly 20. Because the coil assembly 20 has a certain height, the coil assembly 20 can be lifted up by the sector plates 12 to form a gap, and thus, both sides of the coil assembly 20 can form a cavity structure for heat dissipation. The coil assembly 20 in the above-described embodiment is configured such that one straight side of the sector formed by the coil assembly is flush with one straight side of the sector plate 12, which is only approximately flush, and only means that the coil assembly 20 is arranged along one straight side of the sector plate 12. The sector coil refers to a sector region which is wound along the contour of the sector in the sector region and is filled with the sector region, and the sector structure necessarily has two straight sides and an arc-shaped side, wherein the two straight sides are two straight sides of the sector which are arranged in an included angle manner. The coil assembly 20 is wound into a sector coil, adjacent areas of the sector coil are cut off to form the heat dissipation area 13, the geometric shape of the coil assembly 20 is the same as that of the heat dissipation area 13, and at least one coil assembly 20 is arranged.

Preferably, two fan-shaped plates 12 are arranged, and the included angle between the two straight sides of a single fan-shaped plate 12 is 120 degrees. In order to ensure the structural strength of the sector plates 12, the area of the sector plates 12 can be increased to the maximum extent under the condition of ensuring uniform mass distribution, and the laying area of the coil groups 20 can also be increased, so that the coil groups 20 can be conveniently arranged.

Preferably, the coil assembly 20 is disposed on the upper surface of the coil mounting plate 10, and both ends of the coil assembly 20 axially penetrate through the coil mounting plate 10 and extend to the outer end plate edge of the coil mounting plate 10 at a position avoiding the heat dissipation region 13. Because each heat dissipation area 13 corresponds to the position of the coil assembly 20 at the lower layer, two ends of the coil assembly 20 extending to avoid the heat dissipation area 13 can avoid the coil assembly 20 at the lower layer, and the lead of the coil assembly 20 is prevented from interfering with the coil assembly 20 at the lower layer to form a short circuit. And the leads of the coil assembly 20 extending to the outer end plate edge of the coil mounting plate 10 can also facilitate wiring.

Preferably, the heat dissipation area 13 is filled with a heat conduction material or a cooling unit. When the coil panel in this application is the stator, can arrange liquid cooling or air-cooled unit in order to further promote the heat dissipation in heat dissipation area 13.

Preferably, the coil groups 20 on a single coil mounting plate 10 are connected in series, and the coil groups 20 on a plurality of coil mounting plates 10 are connected in series. When the coil disc in the present application is used for a generator, the series connection can boost the generation voltage.

Preferably, the coil groups 20 on a single coil mounting plate 10 are connected in series, and the coil groups 20 on a plurality of coil mounting plates 10 are connected in parallel. When the coil disc in the application is used for a generator, the parallel connection can promote the generation current.

Preferably, the coil assembly 20 is a PCB printed circuit disposed on the sector plate 12. The PCB printed circuit has the weight of only 10 to 20 percent of that of the silicon steel sheet and the enameled wire, greatly reduces the price, almost has no eddy current loss of a metal iron core, and is easy to produce and manufacture in a large scale. The problem that the PCB printed circuit is easy to generate heat is solved in the application.

Preferably, the adjacent coil mounting plates 10 are bonded by a heat conductive adhesive. Since the coil assembly 20 of the PCB is flat, it can be directly bonded by the thermal conductive adhesive.

Preferably, the copper sheet surface of the PCB printed circuit is coated with silver paste. And the conductive strength is improved.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present disclosure.

Claims

1. The utility model provides an axial magnetic current motor coil panel which characterized in that: including being used for cup jointing coil mounting panel (10) on the motor shaft, the face of coil mounting panel (10) is located the radial position of motor shaft, coil mounting panel (10) are provided with a plurality ofly, and are a plurality of coil mounting panel (10) coincide in proper order along the motor shaft axial, coil mounting panel (10) are including being located lantern ring (11) that its middle part is used for connecting the motor shaft, the even interval arrangement in lantern ring (11) peripheral part has a plurality of sector plates (12), and is single interval region between adjacent sector plate (12) constitutes radiating area (13) on coil mounting panel (10), sector plate (12) upper berth is equipped with coil assembly (20), and is adjacent coil assembly (20) and radiating area (13) mutual disposition on coil mounting panel (10).

2. The axial flux motor coil disc of claim 1, wherein: the fan-shaped coil is wound by the coil group (20), the included angle of two straight edges of a fan-shaped area formed by the fan-shaped coil is 1/2 of the included angle of two straight edges of the fan-shaped plate (12), the included angle of two straight edges of the heat dissipation area (13) is the same as the included angle of two straight edges of the fan-shaped coil, and one straight edge of the fan-shaped area formed by the coil group (20) is flush with one straight edge of the fan-shaped plate (12).

3. The axial flux motor coil disc of claim 2, wherein: two fan-shaped plates (12) are arranged, and the included angle between two straight edges of each fan-shaped plate (12) is 120 degrees.

4. The axial flux motor coil disc of claim 1, wherein: coil assembly (20) set up the upper surface at coil mounting panel (10), the both ends axial of coil assembly (20) run through coil mounting panel (10) and dodge the position of radiating area (13) and extend to the outer terminal plate edge department of coil mounting panel (10).

5. The axial flux motor coil disc of claim 1, wherein: and the heat dissipation area (13) is filled with heat conduction materials or cooling units.

6. The axial flux motor coil disc of claim 1 or 2 or 3 or 4 or 5, wherein: the coil groups (20) on the single coil mounting plate (10) are connected in series, and the coil groups (20) on the multiple coil mounting plates (10) are connected in series.

7. The axial flux motor coil disc of claim 1 or 2 or 3 or 4 or 5, wherein: the coil groups (20) on the single coil mounting plate (10) are connected in series, and the coil groups (20) on the multiple coil mounting plates (10) are connected in parallel.

8. The axial flux motor coil disc of claim 1 or 2 or 3 or 4 or 5, wherein: the coil assembly (20) is a PCB printed circuit disposed on the sector plate (12).

9. The axial flux motor coil disc of claim 8, wherein: the adjacent coil mounting plates (10) are bonded through heat-conducting glue.

10. The axial flux motor coil disc of claim 8, wherein: the surface of the copper sheet of the PCB printed circuit is coated with silver paste.