KR-20260066989-A - APPARATUS OF MOBILITY

Abstract

The present invention provides a mobility device comprising a propulsion unit, wherein the propulsion unit comprises a propeller; a rotor connected to the propeller; a stator positioned to correspond to the rotor portion; an inverter electrically connected to the stator; a cooling housing positioned adjacent to the stator and the inverter and including a cooling channel; and a cooling portion connected to the cooling channel, wherein the cooling channel is located between the stator and the inverter and includes a plurality of channels through which cooling water circulates independently.

Inventors

• 유환주
• 전현우
• 이성호
• 이재준
• 이동수
• 황윤경
• 최종훈
• 이홍욱
• 전재영
• 신권수
• 안정욱
• 임기택
• 장용석
• 여경구
• 김치만
• 이경준
• 이감천

Assignees

• 현대자동차주식회사
• 기아 주식회사

Dates

Publication Date

20260512

Application Date

20241105

Claims (15)

1. As a mobility device including a propulsion system, The commercial district promotion body prop; A rotor connected to the above propeller; A stator positioned to correspond to the above rotor portion; An inverter electrically connected to the above stator; A cooling housing disposed adjacent to the stator and the inverter and including a cooling channel; and It includes a cooling unit connected to the above cooling channel, and A mobility device in which the cooling channel is located between the stator and the inverter and includes a plurality of channels through which cooling water circulates independently.
2. In Article 1, The above plurality of channels includes a first channel and a second channel arranged adjacent to each other, and A mobility device in which the cooling unit connected to the first channel and the cooling unit connected to the second channel operate independently for heat exchange.
3. In Article 2, The above plurality of channels are each annular mobility devices.
4. In Paragraph 3, A mobility device in which, radially with respect to the axis center of the propeller, the outer surface of the plurality of channels is arranged opposite the stator, and the inner surface of the plurality of channels is arranged opposite the inverter.
5. In Article 2, A mobility device in which the first channel and the second channel are separated and arranged along the axial direction of the propeller.
6. In Article 2, A mobility device in which the first channel and the second channel are alternately arranged in the axial direction of the propeller.
7. In Article 6, A mobility device in which a portion of the first channel and another portion form a spaced-apart space in the axial direction of the propeller, and the second channel is disposed in the spaced-apart space.
8. In Article 6, A portion of the first channel and another portion form a first spaced-out space in the axial direction of the propeller, and A portion of the second channel and another portion form a second spaced-out space in the axial direction of the propeller, and A portion of the first channel is positioned in the second spaced-out space, and A mobility device in which a portion of the second channel is disposed in the first spaced-out space.
9. In Article 8, The first channel includes a first connecting part that connects a part of the first channel separated by the first separation space and another part of the first channel, and A mobility device comprising a second connecting part that connects a part of the second channel separated by the second separation space and another part of the second channel.
10. In Article 9, A mobility device in which the first connecting portion is arranged to overlap with the second channel in the axial direction of the propeller.
11. In Article 9, A mobility device in which the second connecting part is arranged to overlap with the first channel in the axial direction of the propeller.
12. In Article 9, The first connecting part is arranged along the same circumferential surface as the first channel, and The second connecting part is arranged along the same circumferential surface as the second channel, and A mobility device in which the first connecting part and the second connecting part are arranged along the same circumferential surface.
13. In Article 1, A mobility device in which the stator and the inverter are arranged to overlap radially with respect to the axis center of the propeller.
14. In Article 13, A mobility device in which the plurality of channels are located radially with respect to the axis center of the propeller, between the stator and the inverter.
15. In Article 13, A mobility device in which the inverter is positioned closer to the center of the propeller's axis than the stator in the radial direction with respect to the center of the propeller's axis.

Description

Apparatus of Mobility The present invention relates to a mobility device, and more specifically to a mobility device comprising a propulsion element. A mobility device is a means of transportation capable of transporting people or cargo over an urban area by flying via a propulsion system. The propulsion system of the mobility device includes a propeller and a drive unit that rotates the propeller, and the drive unit may include a motor and an inverter that supplies power to the motor. A motor consists of a stator and a rotor; the rotor is connected to a shaft, which can be connected to a propeller. The rotor rotates through electromagnetic interaction with the stator, and as the rotor rotates, the shaft and propeller can also rotate. When a motor operates, heat is generated, and failure to dissipate this heat can cause critical damage to the drive components. Additionally, since the inverter also generates heat, it is necessary to dissipate the heat generated by the inverter along with that of the motor. Accordingly, the propellant may include a cooling section and a cooling channel through which cooling water flows. The cooling water flowing through the cooling channel exchanges heat with the heat generated by the motor and inverter, thereby reducing the heat generated in the propellant. The cooling section implements a heat exchange cycle for cooling. The cooling section may include a pump and a heat exchanger. However, if there is a defect in even a part of the components of this cooling unit, cooling becomes impossible, which can be fatal to the safety of the mobility device. FIG. 1 is a schematic diagram showing a module commonly configured in various types of mobile mobility devices, FIG. 2 is a drawing illustrating a mobility device according to one example, FIG. 3 is a side cross-sectional view illustrating a propulsion unit of a mobility device according to an embodiment, FIG. 4 is a drawing illustrating a cooling housing, FIG. 5 is a drawing showing a cooling housing in which an inverter is placed. FIG. 6 is a block diagram illustrating a redundant cooling unit and a cooling channel, FIG. 7 is a drawing illustrating a first example of a cooling channel, FIG. 8 is a drawing illustrating a second example of a cooling channel, FIG. 9 is a drawing illustrating a third example of a cooling channel, FIG. 10 is a drawing illustrating a fourth example of a cooling channel, FIG. 11 is a graph showing the temperature around the stator core (131) when the cooling unit (160) operates normally without failure. FIG. 12 is a graph showing the temperature around the stator when cooling is performed through a cooling channel according to the first example, in a case where some of the first cooling unit and the second cooling unit fail and cooling proceeds through a single cooling unit. FIG. 13 is a graph showing the temperature around the stator when cooling is performed through a cooling channel according to the second example, in the case where part of the first cooling unit and the second cooling unit fail and cooling proceeds through a single cooling unit. FIG. 14 is a graph showing the temperature around the stator when cooling is performed through a cooling channel according to the third example, in the case where part of the first cooling unit and the second cooling unit fail and cooling proceeds through a single cooling unit. FIG. 15 is a graph showing the output of a propellant when cooling is performed through a cooling channel according to the third example, in the case where part of the first cooling unit and the second cooling unit fail and cooling proceeds through a single cooling unit. FIG. 16 is a graph showing the output of a propellant when cooling is performed through a cooling channel according to the second example, in a case where part of the first cooling unit and the second cooling unit fail and cooling proceeds through a single cooling unit. FIG. 17 is a graph showing the output of a propellant when cooling is performed through a cooling channel according to the third example, in the case where some of the first and second cooling sections fail and cooling proceeds through one cooling section. The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the invention to specific embodiments, and it should be understood that the invention includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention. Terms including ordinal numbers, such as second, first, etc., may be used to describe various components, but said components are not limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be named the first component, and similarly, the first componen