CN-121990172-A - Vertical-starting power module heat dissipation device and method and aircraft

CN121990172ACN 121990172 ACN121990172 ACN 121990172ACN-121990172-A

Abstract

The invention provides a vertical-starting power module heat dissipation device, a vertical-starting power module heat dissipation method and an aircraft, and belongs to the technical field of aircrafts, wherein the heat dissipation device comprises a heat exchanger fairing and a heat exchanger; the heat exchanger fairing is in a streamline shape with two sharp ends and a wide middle part, two ends of the heat exchanger fairing are fixedly arranged on the power arm body, heat exchanger radiating ports are arranged below the forward propeller and the reverse propeller at the top of the heat exchanger fairing, driving motor modules of the forward propeller and the reverse propeller are all arranged inside the heat exchanger fairing, a heat exchanger radiating channel is formed between the inner side wall of the heat exchanger fairing and the two sides of the top of the power arm body, the heat exchanger is arranged inside the heat exchanger fairing, radiating fins of the heat exchanger are arranged at the heat exchanger radiating ports, and a hot liquid inlet and a cold liquid outlet of the heat exchanger are respectively connected with a cooling liquid outlet pipe and a cooling liquid inlet pipe of the driving motor module. The invention can solve the problem that the heat dissipation structure is arranged outside the power arm in the prior art to cause flight resistance to the cruising flight of the aircraft.

Inventors

LIU SHIYI
Shen Qiuyi
LI YANFEI

Assignees

上海御风未来航空科技有限公司

Dates

Publication Date: 20260508
Application Date: 20241105

Claims (10)

1. A heat dissipating device of a vertical-starting power module is characterized by comprising a heat exchanger fairing and a heat exchanger, wherein, The heat exchanger fairing is in a streamline shape with a wide middle part of two tips, two ends of the heat exchanger fairing are fixedly arranged on the power arm body, and heat exchanger radiating ports are arranged below the forward propeller and the reverse propeller at the top of the heat exchanger fairing; the heat exchanger is arranged in the heat exchanger fairing, and the radiating fins of the heat exchanger are arranged at the radiating openings of the heat exchanger; and the hot liquid inlet and the cold liquid outlet of the heat exchanger are respectively connected with a cooling liquid outlet pipe and a cooling liquid inlet pipe of the driving motor module through cooling liquid pipes.
2. The vertical power module heat sink of claim 1, wherein, The middle part of the heat exchanger fairing is positioned between the forward propeller and the reverse propeller; The heat exchanger radiating opening is arranged in the middle of the heat exchanger fairing; Through holes for the forward propeller and the reverse propeller to pass through are respectively formed in the tops of the two ends of the heat exchanger fairing, and the forward propeller and the reverse propeller are located above the top of the heat exchanger fairing.
3. The vertical power module heat sink of claim 1, wherein, The heat exchanger fairing is fixedly arranged on the power arm body through a heat exchanger fairing mounting bracket, The bottom end of the heat exchanger fairing installing support is fixed on the reinforcing rib of the power arm body; The inside wall of heat exchanger radome fairing can be dismantled fixed mounting and be in the upper portion of heat exchanger radome fairing installing support.
4. The vertical power module heat sink of claim 1, wherein, The heat exchanger cooling ports comprise a first heat exchanger cooling port arranged right below the forward-rotation propeller and a second heat exchanger cooling port arranged right below the reverse-rotation propeller.
5. The vertical power module heat sink of claim 1, wherein, The heat exchanger is fixed at the top of the power arm body through a heat exchanger mounting bracket; The bottom of the heat exchanger mounting bracket is fixed at the top of the power arm body, and the heat exchanger is detachably fixed at the top of the heat exchanger mounting bracket.
6. The vertical power module heat sink of claim 1, wherein, The driving motor module of the positive-rotation propeller is fixed at the top of the power arm body and/or, The driving motor module of the contra-rotating propeller is fixed at the top of the power arm body.
7. The vertical motion power module heat sink of claim 6, wherein, The bottom of the forward propeller and the bottom of the reverse propeller are both installed on the driving motor module through a propeller installation base.
8. The vertical power module heat sink of claim 1, wherein, A power arm overhaul port is arranged on the power arm body; and a power arm access cover is arranged at the power arm access opening.
9. A method for dissipating heat from a vertical power module of an aircraft, characterized in that the vertical power module is dissipated by using a vertical power module dissipating heat device according to any one of claims 1-8, comprising the steps of: Step S1, when an aircraft is ready for vertical take-off or vertical landing, a carrier sends a starting instruction to a driving motor module of the forward propeller and the reverse propeller; S2, a driving motor module of the forward propeller and the reverse propeller starts working according to the starting instruction, so that the forward propeller and the reverse propeller are driven to rotate; when the driving motor module works, the motor drives the gear pump inside the driving motor module to rotate, so that cooling liquid is pumped to cool the driving motor module; S3, cooling liquid with increased temperature enters the heat exchanger through the cooling liquid guide pipe in the driving motor module, exchanges heat through the heat exchanger and then circulates back to the cooling liquid inlet pipe of the driving motor module through the cooling liquid guide pipe; And S4, rotating the forward propeller and the reverse propeller to generate downward airflow, taking away heat generated by heat exchange of the heat exchanger on cooling liquid of the driving motor module through the heat exchanger cooling port, and discharging the heat from the heat exchanger cooling channel.
10. An electric vertical takeoff and landing aircraft comprising an aircraft body, characterized in that a vertical takeoff and landing power module heat sink according to any of claims 1-8 is provided on said aircraft body.

Description

Vertical-starting power module heat dissipation device and method and aircraft Technical Field The invention relates to the technical field of aircrafts, in particular to a vertical-starting power module heat dissipation device and method and an aircraft. Background Evtol (electric vertical takeoff and landing aircraft) is a new type of aircraft that stems from the need for efficient, convenient and environmentally friendly clean urban air traffic. The traditional helicopter has the problems of high noise, high cost, complex operation and the like. evtol combine electric technology to reduce noise and operation and maintenance costs by electric drive. Because of having the capability of vertical lifting, the vehicle can lift in a narrow space without a special runway. The system integrates the technologies of aviation, electric and intelligent control and other fields, provides a new solution for the scenes of urban air travel, logistics, emergency rescue and the like, and has wide application scenes. Because the power of the large evtol is a high-power motor, the heat dissipation device is not suitable for natural heat dissipation, and the existing main heat dissipation schemes are air cooling heat dissipation and liquid cooling heat dissipation. The cooling liquid cooling heat dissipation mode is more direct and more effective, and the cooling liquid can be directly contacted with the area with the most serious heat generation, so that the heat is brought to the heat exchanger for heat exchange through the cooling pipeline to dissipate the heat. In the conventional heat dissipation method adopted by the vertical-starting power module, a heat dissipation fin or a heat dissipation fan is required to be exposed outside a power arm, and the purpose of heat exchange is achieved by utilizing air flow to pass through the fin or air flow introduced by the heat dissipation fan. The heat dissipation method can cause certain flight resistance when the aircraft is cruising and flying, and the heat exchange efficiency is low. Disclosure of Invention In view of the above problems, the present invention aims to provide a heat dissipating device and method for a vertical-motion power module, and an aircraft, so as to solve the problems that in the prior art, a heat dissipating fin or a heat dissipating fan is required to be exposed outside a power arm, and the heat exchanging purpose is achieved by using air flow passing through the fin or air flow introduced by using the heat dissipating fan, so that a certain flight resistance is caused when the aircraft is cruising and flying, and the heat exchanging efficiency is low. The invention provides a heat radiator of a vertical-starting power module, which comprises a heat exchanger fairing and a heat exchanger, wherein, The heat exchanger fairing is in a streamline shape with a wide middle part of two tips, two ends of the heat exchanger fairing are fixedly arranged on the power arm body, and heat exchanger radiating ports are arranged below the forward propeller and the reverse propeller at the top of the heat exchanger fairing; the heat exchanger is arranged in the heat exchanger fairing, and the radiating fins of the heat exchanger are arranged at the radiating openings of the heat exchanger; and the hot liquid inlet and the cold liquid outlet of the heat exchanger are respectively connected with a cooling liquid outlet pipe and a cooling liquid inlet pipe of the driving motor module through cooling liquid pipes. In addition, the heat exchanger fairing is characterized in that the middle part of the heat exchanger fairing is located between the forward propeller and the reverse propeller, the heat exchanger radiating opening is formed in the middle part of the heat exchanger fairing, through holes for the forward propeller and the reverse propeller to pass through are formed in the tops of the two ends of the heat exchanger fairing respectively, and the forward propeller and the reverse propeller are located above the top of the heat exchanger fairing. In addition, the heat exchanger fairing is fixedly arranged on the power arm body through a heat exchanger fairing mounting bracket, wherein the bottom end of the heat exchanger fairing mounting bracket is fixed on a reinforcing rib of the power arm body, and the inner side wall of the heat exchanger fairing is detachably and fixedly arranged on the upper part of the heat exchanger fairing mounting bracket. In addition, preferably, the heat exchanger heat dissipation port comprises a first heat exchanger heat dissipation port arranged right below the forward rotation propeller and a second heat exchanger heat dissipation port arranged right below the reverse rotation propeller. In addition, the heat exchanger is preferably fixed at the top of the power arm body through a heat exchanger mounting bracket, the bottom end of the heat exchanger mounting bracket is fixed at the top of the power arm body, and the heat exchanger i