Ducted fan with integrated heat dissipation structure and carrier

Abstract

The utility model provides a ducted fan with an integrated heat dissipation structure and a carrier, the ducted fan comprises a ducted shell, a driving motor and a heat dissipation supporting guide vane connected between the ducted shell and the driving motor in a supporting mode, and a battery system used for supplying power to the driving motor is integrally arranged in a hollow structure of the ducted shell; the space between the battery system and the inner wall face of the duct shell is filled with heat dissipation filler, and the ends, away from the driving motor, of the heat dissipation supporting guide vanes extend into the hollow structure of the duct shell and are connected with the heat dissipation filler to form a specific integrated heat dissipation structure, so that the heat dissipation problem of the driving motor is solved; according to the electric ducted fan, the heat dissipation problem of a battery system integrated in the ducted shell is practically and effectively solved, the weight and the size of the whole system are reduced, multifunctional integration of guide vane structure supporting, heat conduction and heat dissipation of the ducted fan is achieved, and a heat management system of the electric ducted fan is greatly simplified.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ducted fans, in particular to a ducted fan with an integrated heat dissipation structure. BACKGROUND

[0002] A ducted fan is a combination of an electric motor and a fan, which generates a high-speed rotating air flow through a duct design, thereby improving the cooling effect of the electric motor and the aerodynamic performance. This design can provide greater air flow and pressure to meet the needs of vehicles such as aircraft and flying cars under different working conditions, such as stable operation during take-off, landing and attitude adjustment.

[0003] In an electric or hybrid system used in an aircraft, the battery pack for power supply and its thermal management system are usually arranged in the fuselage away from the ducted fan. This arrangement inevitably occupies the position space volume of the aircraft and increases the weight of the overall system device, which is not conducive to the realization of lightweight and miniaturization.

[0004] In the related art, a design scheme for integrating a fan and a battery is provided, that is, the battery system and its thermal management system are integrated into the structure of the electric fan propulsion system. Since the battery system needs to be cooled, the existing design scheme uses the airflow generated by the power fan or rotor to cool the battery system integrated into the fan housing, that is, the external airflow fluid flows into the hollow structure of the housing through the opening of the housing for heat dissipation. This heat dissipation method obviously does not meet the sealing specification requirements of the aircraft, and its practicability and technology conversion rate are almost zero. For example, if the integrated heat dissipation structure of the design scheme encounters rain, snow and sand weather, some air impurities will enter the housing, which will definitely block the fluid flowing in the housing. At this time, not only the heat dissipation effect is not good, but also it may cause an unpredictable dangerous accident.

[0005] Therefore, for those skilled in the art, how to design a ducted fan with an integrated battery system structure having a practical and effective heat dissipation structure in the duct housing is a difficult problem to be solved. CONTENT OF THE INVENTION

[0006] In view of this, in order to solve the above-mentioned problems, this utility model provides a ducted fan with an integrated heat dissipation structure. By filling the space between the battery system and the inner wall of the duct housing with heat dissipation filler and combining it with heat dissipation support guide vanes to form an integrated heat dissipation structure, the heat dissipation problem of the drive motor is solved, and the heat dissipation problem of the battery system integrated in the hollow structure of the duct housing is also effectively solved. This achieves the beneficial effect of reducing the weight and volume of the overall system, while also realizing the multi-functional integration of ducted fan guide vane structure support, heat conduction and heat dissipation, which is safe and effective. It greatly simplifies the thermal management system of electric ducted fans and has important significance in practical application technology.

[0007] To achieve the above objectives, one embodiment of this application provides a ducted fan with an integrated heat dissipation structure. The ducted fan includes a duct housing with a hollow structure, a drive motor located within the duct space, and heat dissipation support guide vanes supporting and connecting the duct housing and the drive motor. The hollow structure of the duct housing is a sealed space, and a battery system for powering the drive motor is arranged within the sealed space. A heat dissipation filler is filled between the battery system and the inner wall of the duct housing in the sealed space. The end of the heat dissipation support guide vane away from the drive motor extends into the hollow structure of the duct housing and connects with the heat dissipation filler.

[0008] According to some embodiments of this application, a ducted fan with an integrated heat dissipation structure is provided, wherein the heat dissipation filler includes highly thermally conductive materials such as heat pipe plate heat dissipation structures.

[0009] According to some embodiments of this application, a ducted fan with an integrated heat dissipation structure includes a heat pipe plate heat dissipation structure comprising an integrally connected left heat dissipation part, a right heat dissipation part, an upper heat dissipation part, and a lower heat dissipation part; the left heat dissipation part abuts against the inner wall of the trailing edge of the duct housing, the right heat dissipation part abuts against the inner wall of the front edge of the duct housing, and the upper and lower heat dissipation parts abut against the inner walls of the upper and lower surfaces of the duct housing, respectively.

[0010] According to some embodiments of this application, a ducted fan with an integrated heat dissipation structure has one end of the heat dissipation support guide vane extending away from the drive motor into the hollow structure of the duct housing and connecting to the lower heat dissipation part.

[0011] According to some embodiments of this application, a ducted fan with an integrated heat dissipation structure is provided, wherein an interlaced heat pipe plate bracket is provided within the space enclosed by the left heat dissipation section, the right heat dissipation section, the upper heat dissipation section and the lower heat dissipation section, and the interlaced heat pipe plate bracket forms a receiving space for fixing and accommodating the battery cells of the battery system.

[0012] According to some embodiments of the present application, the ducted fan with integrated heat dissipation structure, the heat dissipation support guide vane is a plurality of, one end of each of the heat dissipation support guide vane is connected with the housing and the stator of the driving motor, the other end is connected with the heat dissipation filler, for combining the external flow fluid, that is, the main airflow of the ducted fan, while dissipating heat for the driving motor and the battery system in the sealed space.

[0013] According to some embodiments of the present application, the ducted fan with integrated heat dissipation structure, the battery system includes one or more of lithium ion battery, solid state battery or fuel cell.

[0014] Another aspect of the embodiments of the present application provides a carrier comprising the ducted fan with integrated heat dissipation structure according to any one of the above embodiments.

[0015] The beneficial effects of the present application are:

[0016] The present application provides a ducted fan with integrated heat dissipation structure, specifically by filling the heat dissipation filler between the battery system and the inner wall of the duct housing, and forming an integrated heat dissipation structure with the heat dissipation support guide vane, which not only solves the heat dissipation problem of the driving motor, but also effectively solves the heat dissipation problem of the battery system integrated in the hollow structure of the duct housing, realizes the multifunctional integration of the support structure, heat conduction and heat dissipation of the ducted fan, greatly simplifies the thermal management system of the electric ducted fan, and has important significance in practical application technology.

[0017] Further, the heat dissipation filler of the present application serves as a fixed outer shell of the battery system, a heat dissipation conductor of the battery system, and a rigid filler between the battery system and the duct housing, which enhances the overall structural rigidity of the duct housing and ensures that the duct housing has effective structural containment capacity after the high-speed rotating fan blade breaks, preventing the broken blade from penetrating the duct housing and injuring the surrounding objects. Especially, the cooperation and connection of the heat dissipation filler and the heat dissipation support guide vane realize the multifunctional integration of the support structure, heat conduction and heat dissipation of the ducted fan, which is beneficial to weight reduction or miniaturization, and greatly simplifies the thermal management system of the electric ducted fan.

[0018] Meanwhile, the unique design of the cooperation and connection of the heat dissipation filler and the heat dissipation support guide vane of the present application enables safe and sealed integration of the battery system in the hollow structure of the duct housing, while effectively ensuring its heat dissipation effect, which has important practical and technical transformation significance in the field of aviation aircraft. BRIEF DESCRIPTION OF DRAWINGS

[0019] The following drawings are used to provide further understanding of the present application, form a part of the present application, and are only intended to schematically explain and describe the present application, and are not intended to limit the scope of the present application. In the drawings:

[0020] Figure 1 A perspective view of a ducted fan 100 with integrated heat dissipation structure for some embodiments of the present application;

[0021] Figure 2 A schematic view of an axial cross-section of a ducted fan with integrated heat dissipation structure for some embodiments of the present application;

[0022] Figure 3 A schematic view of an integrated heat dissipation structure with integrated battery for some embodiments of the present application;

[0023] Figure 4 A schematic view of a radial cross-section of a ducted fan with integrated heat dissipation structure for some embodiments of the present application.

[0024] Reference signs:

[0025] 100, a ducted fan with integrated heat dissipation structure;

[0026] 1, a duct housing; 10, a leading edge inner wall of the duct housing; 11, a trailing edge inner wall of the duct housing; 12, an upper surface inner wall of the duct housing; 13, a lower surface inner wall of the duct housing;

[0027] 2, a drive motor; 21, a stator; 22, a rotor;

[0028] 3, a heat dissipation support vane;

[0029] 4, a battery system; 40, a heat dissipation filler; 401, a right heat dissipation part; 402, a left heat dissipation part; 403, an upper heat dissipation part; 404, a lower heat dissipation part; 41, a heat pipe plate support;

[0030] 5, a fan. DETAILED DESCRIPTION

[0031] The following drawings are used to provide further understanding of the present application, form a part of the present application, and are only intended to schematically explain and describe the present application, and are not intended to limit the scope of the present application. In the drawings:

[0032] In this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0033] The technical solutions among various embodiments of the present application can be combined with each other, but the combination of the technical solutions must be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of the technical solutions contradicts each other or cannot be realized, it should be considered that the combination of the technical solutions does not exist and is not within the scope of the present application.

[0034] The following are examples of detailed implementation processes provided for the purpose of detailed description of the technical solutions to be protected by the present application, but the present application can also be implemented in other ways different from the description, and a person of ordinary skill in the art can realize the present application by using different technical means under the guidance of the concept of the present application, so the present application is not limited by the following specific embodiments.

[0035] Figure 1 A perspective structure of a ducted fan 100 with an integrated heat dissipation structure of a battery system 10 is shown, including a driving motor 2 for driving a fan 5 to rotate through a rotor 22, a duct housing 1 with a hollow structure, and a heat dissipation support guide vane 3 supported and connected between the duct housing 1 and the driving motor 2; wherein the hollow structure 10 of the duct housing 1 is a sealed space, and a battery system 4 for partially powering the driving motor 2 is arranged in the sealed space, a heat dissipation filler 40 is filled between the battery system 4 and the inner wall surface of the duct housing 1, and the heat dissipation support guide vane 3 extends into the hollow structure of the duct housing 1 at an end away from the driving motor 2 and is connected with the heat dissipation filler 40.

[0036] In this embodiment, the integrated heat dissipation structure includes the mutual connection of the heat dissipation support guide vane 3 and the heat dissipation filler 40, and realizes the simultaneous heat dissipation of the battery system 4 and the driving motor 2.

[0037] It can be understood that the heat dissipation support guide vane 3 can be configured as a heat exchange pipe and a shell, the heat exchange pipe is embedded in the shell, so that the shell can protect the heat exchange pipe to a certain extent, and the driving motor 2 is connected and fixed with the duct shell 1 through the heat dissipation support guide vane 3, thereby enhancing the stability of the overall structure of the duct fan. The heat dissipation support guide vane 3 is made of graphene material, which has high strength and very light weight, and has heat conduction performance far superior to ordinary heat conduction materials (such as ceramic and copper), so that the heat inside the driving motor can be dissipated more effectively.

[0038] The heat dissipation filler 40 can be configured to include a graphene composite material formed by compounding graphene with heat-conducting silica gel, gel, and potting glue, and a heat pipe plate heat dissipation structure surrounding the composite material. The heat pipe plate heat dissipation structure can be configured as a heat exchange pipe and a shell, the heat exchange pipe is embedded in the shell, so that the shell can protect the heat exchange pipe to a certain extent, and can also be used as a fixed outer shell of the battery system. Most importantly, it can also enhance the overall structural rigidity of the duct shell, so that the duct shell has effective structural containment capacity after the fan blade breaks at high speed, preventing the broken blade from penetrating the duct shell and injuring the surrounding objects. The heat exchange pipe and the shell of the heat pipe plate heat dissipation structure are made of graphene material, which has high strength and very light weight, and has heat conduction performance far superior to ordinary heat conduction materials, which helps to stabilize the working temperature of the integrated battery system in the duct shell.

[0039] Further, the heat exchange pipe of the heat dissipation support guide vane 3 is integrally connected with the heat exchange pipe of the heat pipe plate heat dissipation structure in the heat dissipation filler 40, realizing the overall effective heat dissipation, high stability of the structure support of the duct fan, and the multifunctional integrated specific structure of heat conduction and heat dissipation, which is beneficial to realize weight reduction or miniaturization, and greatly simplifies the thermal management system of the electric duct fan.

[0040] Of course, the heat dissipation support guide vane 3 and the heat pipe plate heat dissipation structure in the heat dissipation filler 40 can also be configured as other heat exchange structures, such as heat exchange pipes with cooling liquid or other heat exchange medium.

[0041] Please refer to Figure 2As a preferred embodiment, the heat dissipation filler 40 comprises a left heat dissipation part 402, a right heat dissipation part 401, an upper heat dissipation part 403 and a lower heat dissipation part 404 which are integrally connected; the left heat dissipation part 402 abuts against the inner wall 11 of the trailing edge of the duct shell, the right heat dissipation part 401 abuts against the inner wall 10 of the leading edge of the duct shell, and the upper heat dissipation part 403 and the lower heat dissipation part 404 abut against the inner wall 12 of the upper surface and the inner wall 13 of the lower surface of the duct shell respectively, further ensuring the overall structural rigidity of the duct shell, and realizing the effective structural containment capacity of the duct shell after the fan blade breaks at high speed, so as to prevent the broken blade from penetrating the duct shell and injuring the surrounding objects.

[0042] As a preferred embodiment, the heat dissipation filler 40 comprises a heat conduction layer and a high-thermal-conductivity material such as a heat pipe plate heat dissipation structure, and the heat conduction layer reduces the contact thermal resistance between the battery and the heat exchange pipe, thereby ensuring the heat dissipation efficiency and temperature stability of the battery system.

[0043] For example, the heat conduction layer can be a thermal interface material (TIM), which can comprise a heat conduction pad prepared by adding fillers and additives with high thermal conductivity to a high-molecular polymer material as a base and then curing by heating.

[0044] In some embodiments, the thermal interface material can comprise a heat-conducting silicone grease, which is generally prepared by mixing and defoaming a high-thermal-conductivity solid as a filler and a liquid with good fluidity and viscosity as a base.

[0045] In some embodiments, the thermal interface material can comprise a heat-conducting gel, which works by manually or automatically filling an uncured liquid polymer into the interface of an electronic device, and then curing it into a thermosetting polymer material under certain conditions, so as to maximize the adhesion of the two-phase interface and reduce the voids.

[0046] In some embodiments, the thermal interface material can comprise carbon materials such as graphene, diamond and carbon nanotubes, which have been proved to have high thermal conductivity, so that the use of carbon materials as heat-conducting fillers is expected to greatly improve the thermal conductivity of polymers.

[0047] As shown in Figure 2 As a preferred embodiment, the heat dissipation support guide vane 3 extends into the hollow structure of the duct shell at the end away from the driving motor 2 and is connected with the heat exchange pipe in the lower heat dissipation part 404, further ensuring the heat exchange between the heat dissipation support guide vane 3 and the heat dissipation filler, and ensuring the stable temperature of the battery system 4.

[0048] AsFigure 3 As shown, as a preferred embodiment, the left heat dissipation part 402, the right heat dissipation part 401, the upper heat dissipation part 403 and the lower heat dissipation part 404 enclose a space, and the staggered heat pipe plate support 41 is arranged in the space, the staggered heat pipe plate support 41 forms a containing space for fixing the battery monomer of the battery system, guarantees the structural stability of the battery system, and enhances the overall structural rigidity of the duct housing. Further, the heat pipe plate support 41 is preferably set as part of the heat pipe plate heat dissipation structure, which is conducive to controlling the stable temperature of the battery system.

[0049] As shown in Figure 4 As a preferred embodiment, the number of heat dissipation support vanes 3 is preferably but not limited to 4, which are symmetrically arranged. The number of heat dissipation support vanes 3 can be reasonably designed according to the actual needs of the battery system and the motor, such as 6, 8, 9, 10, etc.

[0050] As shown in Figure 2 Each of the heat dissipation support vanes 3 is connected to the housing and the stator 21 of the driving motor 2 at one end, and is connected to the heat exchange pipe of the heat dissipation filler 40 at the other end, for combining with the external flow fluid, which is the main airflow of the duct fan as shown by the arrow, and at the same time, the driving motor 2 and the battery system 4 in the sealed space are cooled. That is, the battery system integrated in the duct housing does not need to flow the external airflow fluid into the hollow structure of the housing for airflow cooling, which not only guarantees the sealing performance of the duct housing, but also fully guarantees the cooling performance of the battery system, solving a big problem that cannot be transformed and implemented by the person skilled in the art. Figure 2

[0051] Finally, it should be noted that the battery type of the battery system is not limited in the present application, and can be one or more of lithium ion battery, solid state battery or fuel cell.

[0052] In addition, another embodiment of the present application provides a vehicle including at least one duct fan 100 with an integrated heat dissipation structure as described in any of the above embodiments, and the vehicle is preferably but not limited to an aircraft, a flying car and a hovercraft, etc.

[0053] ​In summary, the ducted fan with integrated heat dissipation structure is provided, and the integrated heat dissipation structure is formed by filling the heat dissipation filler between the battery system and the inner wall surface of the duct housing of the sealed space and the heat dissipation support guide vane. The heat dissipation problem of the driving motor is solved, and the heat dissipation problem of the battery system integrated in the hollow structure of the duct housing is effectively solved. The weight and volume of the overall system are reduced, the support structure, heat conduction and heat dissipation of the ducted fan are multifunctionally integrated, and the heat management system of the electric ducted fan is greatly simplified. The application has important significance in practical conversion and application technology.

[0054] Further, the heat dissipation filler of the application is used as the fixed outer shell of the battery system, the heat dissipation conductor of the battery system, and the rigid filler between the battery system and the duct housing. The overall structural rigidity of the duct housing is enhanced, and the duct housing has effective structural containment capacity after the fan blade breaks at high speed, preventing the broken blade from penetrating the duct housing and injuring the surrounding objects. Especially, the heat dissipation filler and the heat dissipation support guide vane are connected to realize the multifunctional integration of the guide vane structure support, heat conduction and heat dissipation of the ducted fan, which is beneficial to weight reduction or miniaturization and greatly simplifies the heat management system of the electric ducted fan.

[0055] Meanwhile, the unique design of the cooperation and connection of the heat dissipation filler and the heat dissipation support guide vane enables the safe and sealed integration of the battery system in the hollow structure of the duct housing, effectively guarantees the heat dissipation effect, and has important practical and technical transformation significance in the field of aircraft.

[0056] The above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments.

[0057] Although the preferred embodiments of the application have been described, those skilled in the art can make additional changes and modifications to the embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the application.

[0058] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A ducted fan with an integrated heat dissipation structure, the ducted fan comprising a duct housing with a hollow structure, a drive motor located within the duct space, and heat dissipation support guide vanes supporting and connecting the duct housing and the drive motor, characterized in that, The hollow structure of the duct housing is a sealed space, and a battery system for powering the drive motor is arranged in the sealed space. A heat dissipation filler is filled between the battery system and the inner wall of the duct housing in the sealed space. The end of the heat dissipation support guide vane away from the drive motor extends into the hollow structure of the duct housing and connects with the heat dissipation filler.

2. The ducted fan with an integrated heat dissipation structure as described in claim 1, characterized in that, The heat dissipation filler is made of a high thermal conductivity material.

3. The ducted fan with an integrated heat dissipation structure as described in claim 1, characterized in that, The heat dissipation filler includes an integrally connected left heat dissipation part, a right heat dissipation part, an upper heat dissipation part, and a lower heat dissipation part; the left heat dissipation part abuts against the inner wall of the tail edge of the duct shell, the right heat dissipation part abuts against the inner wall of the front edge of the duct shell, and the upper heat dissipation part and the lower heat dissipation part abut against the inner wall of the upper surface and the inner wall of the lower surface of the duct shell, respectively.

4. The ducted fan with an integrated heat dissipation structure as described in claim 3, characterized in that, The end of the heat dissipation support guide vane away from the drive motor extends into the hollow structure of the duct housing and connects to the lower heat dissipation part.

5. The ducted fan with an integrated heat dissipation structure as described in claim 3, characterized in that, An interlaced heat pipe plate bracket is provided within the space enclosed by the left heat dissipation section, the right heat dissipation section, the upper heat dissipation section, and the lower heat dissipation section. The interlaced heat pipe plate bracket forms a receiving space for fixing and accommodating the battery cells of the battery system.

6. The ducted fan with an integrated heat dissipation structure as described in claim 1, characterized in that, There are multiple heat dissipation support guide vanes. One end of each heat dissipation support guide vane is connected to the housing and stator of the drive motor, and the other end is connected to the heat dissipation filler. It is used to combine the fluid flowing around the outside of the heat dissipation support guide vane to dissipate heat from the drive motor and the battery system in the sealed space.

7. The ducted fan with an integrated heat dissipation structure as described in claim 1, characterized in that, The battery system includes one or more of lithium-ion batteries, solid-state batteries, or fuel cells.

8. A vehicle, characterized in that, Includes the ducted fan with an integrated heat dissipation structure as described in any one of claims 1-7.

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