Helicopter heat dissipation structure capable of achieving air inflow without rain inflow
By employing turbine assembly and circular cavity design within a helicopter cabin structure, the balance between heat dissipation and rain protection is resolved, achieving highly efficient heat dissipation and rain protection. It is suitable for multiple locations on a helicopter, with a simple structure that does not add extra burden.
Patent Information
- Application Number
- CN202520628550.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing helicopter cabin-style cooling methods struggle to balance rain protection and heat dissipation, leading to the failure of some devices in high-temperature environments. Furthermore, existing automatic opening and closing grid structures consume excessive space, power, and weight, limiting their applicability.
Design a cooling structure for helicopters that allows air to enter but prevents rain from entering. The structure uses a turbine assembly and a circular cavity. The turbine assembly includes a wind-facing turbine and a rain-blocking turbine. By staggering the turbine assembly and designing the air guide plate, airflow is introduced and rainwater is trapped. Combined with the middle and bottom mesh, a multi-layered rainproof and cooling effect is achieved.
It achieves both effective heat dissipation and rain protection without consuming additional power, making it suitable for most helicopter usage scenarios and locations. It is simple in structure, lightweight, and economical.
Smart Images
Figure CN223949371U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aircraft design and manufacturing technical field, especially relate to a helicopter air inlet does not enter rain heat dissipation structure. BACKGROUND
[0002] Because modern helicopter carries more and more various different function machines, electricity, avionics equipment, these equipment are installed in a cabin structure of helicopter, some equipment can produce heat, make cabin structure temperature rise, but most of the equipment has the temperature interval of suitable work, especially very sensitive to high temperature, easy to cause paint baking erosion, rubber aging, plastic melting, component overtemperature and so on and lose basic function, then cause danger, at present, the cooling mode of cabin structure in helicopter is mainly air guiding, that is, using the flight speed or rotor downwash of helicopter, air current is guided into cabin structure inside through air inlet, and then heat is taken away from air outlet, realize cabin structure cooling, air inlet is generally designed as straight structure, wind pocket structure, manual opening and closing grid structure, and automatic opening and closing grid structure is rarely used, straight structure and wind pocket structure have the advantages of simplicity and high efficiency, but are not rainproof, manual opening and closing grid structure can realize air guiding and rainproof through manual closing in rainy day, but the shortcoming is that it is only suitable for the place where the hand of passenger cabin inside helicopter can reach, and the application range is small, automatic opening and closing grid structure can realize automatic opening and closing of grid through automatic mechanical structure, but because space, power and weight are consumed on non-main function of helicopter, it is rarely used at present. CONTENT OF UTILITY MODEL
[0003] The utility model discloses a helicopter air inlet does not enter rain heat dissipation structure, can flow and dissipate heat, can also isolate rainwater, and the flow and heat dissipation capacity and the rainwater isolation capacity form the relationship of mutual restraint, so that two kinds of helicopter heat dissipation device scheme are applicable to most use scenes of helicopter and each part position of helicopter body.
[0004] TECHNICAL SCHEME
[0005] A kind of helicopter air inlet does not enter rain heat dissipation structure, comprising: wind pocket, panel, turbine group, bottom plate;
[0006] Panel and bottom plate form circular cavity between;
[0007] Turbine group is coaxially installed in circular cavity;
[0008] One side of panel is equipped with opening and is connected with wind pocket;
[0009] One side of bottom plate is equipped with opening and is connected with cabin of helicopter;
[0010] The turbine group comprises a turbine shaft and a windward turbine and a rain blocking turbine coaxially installed on the turbine shaft; the windward turbine is installed on the side close to the wind scoop, and the rain blocking turbine is installed on the side close to the helicopter cabin, and the windward turbine and the rain blocking turbine are installed in a staggered manner.
[0011] Further, the lower part of the circular cavity is a rain collecting cavity, and the rain collecting cavity is communicated with the wind scoop through a rain discharging hole.
[0012] Further, the wind scoop is composed of two side plates and a wind guide plate, and the plane of the wind guide plate forms an angle of 45° with the turbine axis.
[0013] Further, the structure comprises an upper circular cavity, a lower circular cavity and two turbine groups.
[0014] The lower circular cavity is provided with an opening connected with the wind scoop, and the upper circular cavity is provided with an opening connected with the helicopter cabin.
[0015] The upper turbine group is arranged on the side close to the helicopter cabin, and the lower turbine group is arranged on the side close to the wind scoop.
[0016] Further, an intermediate partition net is arranged between the upper circular cavity and the lower circular cavity.
[0017] Further, a bottom partition net is arranged between the circular cavity and the helicopter cabin.
[0018] In summary, the beneficial effects of the utility model are as follows:
[0019] (1) The utility model provides a helicopter air inlet rain exclusion heat dissipation structure, which can not only flow and dissipate heat, but also can isolate rainwater, and the flow and heat dissipation capacity and the rainwater isolation capacity form a relationship of mutual promotion, so that the two kinds of helicopter heat dissipation device schemes are applicable to most use scenes of the helicopter and positions of each part of the helicopter body.
[0020] (2) Based on the principle of flow guiding, the device itself does not need to be additionally provided with power driving by using wind power, so that the flow and heat dissipation capacity and the rainwater isolation capacity are realized, and the use effect is good.
[0021] (3) The utility model has the advantages of simple structure, low manufacturing complexity, simple assembly mode, clear and understandable use logic, small size, light weight, good economy, and is suitable for large-scale manufacturing and use. DRAWINGS
[0022] Figure 1 It is a double-cavity heat dissipation schematic view of an embodiment one.
[0023] Figure 2 It is a single-cavity heat dissipation schematic view of an embodiment two. CONCRETE IMPLEMENTING METHOD
[0024] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0026] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0027] Example 1
[0028] A helicopter cooling structure that allows air to enter but prevents rain from entering includes a dual-cavity cooling device consisting of a rain-blocking turbine 101, an upper circular cavity 102, a wind-facing turbine 103, a turbine shaft 104, a panel 105, a middle partition mesh 106, a wind shield 107, a rain drain hole 108, a rain collection cavity 109, a lower circular cavity 110, and a base plate 111.
[0029] ①System device composition and main functions:
[0030] (1) The dual-cavity heat dissipation device consists of two parts: a moving part and a stationary part. The rain-shielding turbine 101, the wind-facing turbine 103, and the turbine shaft 104 are the moving parts, and the rest are the stationary parts. The rain-shielding turbine 101, the wind-facing turbine 103, and the turbine shaft 104 form a dynamic turbine structure that provides rain protection but not wind protection. The two turbine structures are respectively installed in the upper circular cavity 102 and the lower circular cavity 110.
[0031] (2) The upper circular cavity 102 and the lower circular cavity 110 are installed between the bottom plate 111 and the panel 105. The circular opening of the upper circular cavity 102 is inward, which is connected to the internal cabin of the helicopter. The circular opening of the lower circular cavity 110 is outward, which is connected to the wind pocket 107. The turbine structure is coaxial with the circular opening of the circular cavity, and the rain blocking turbine 101 and the wind facing turbine 103 are the same size, with a diameter slightly smaller than the diameter of the circular opening of the circular cavity. The rain blocking turbine 101 and the wind facing turbine 103 are installed with staggered blades and phase, which aims to ventilate while blocking as much rain as possible. The faster the incoming flow speed, the faster the turbine rotates, and the more rain under the turbine, the more obvious the rain blocking effect.
[0032] (3) The turbine shaft 104 of the lower circular cavity 110 is installed on the bottom plate 111, and the rain blocking turbine 101 and the wind facing turbine 103 are installed on the side of the turbine shaft 104 facing the wind pocket 203. The wind facing turbine 103 is close to the side of the wind pocket 203, and the rain blocking turbine 101 is close to the side of the cavity. The turbine shaft 104 of the lower circular cavity 110 is installed on the panel 105, and the rain blocking turbine 101 and the wind facing turbine 103 are installed on the side of the turbine shaft 104 facing the internal cabin of the helicopter. The wind facing turbine 103 is close to the side of the internal cabin of the helicopter, and the rain blocking turbine 101 is close to the side of the cavity.
[0033] (4) The wind pocket 203 is composed of two side plates and a wind guide plate, which mainly functions to guide the incoming flow into the lower circular cavity 110. The wind guide plate of the wind pocket 203 is at an angle of 45° with the turbine axis, which aims to minimize the energy consumption and turbulence of the incoming flow. The wind pocket 203 can be set to one or multiple. When set to one, the wind pocket has a larger height and more wind, and the heat dissipation effect is better, but it also has a greater impact on the aerodynamic shape of the helicopter. When set to multiple, the wind pocket has a smaller height and a smaller impact on the aerodynamic shape of the helicopter, but it has less wind and a slightly worse heat dissipation effect.
[0034] (5) The upper circular cavity 102 and the lower circular cavity 110 are separated by the intermediate separation net 106, which has three functions: separating debris, directly blocking part of the rainwater through the net, and forming a water film to separate most of the rainwater in heavy rain. The rainwater blocked by the turbine and the intermediate separation net 106 is collected in the rainwater collection cavity 109 at the bottom of the lower circular cavity 110, and then discharged outside the machine through the rainwater discharge hole 108.
[0035] ③ System operation process
[0036] (1)Double cavity heat dissipation device running process one. The airflow sandwiching the rain enters the wind pocket 107, and the wind pocket 107 minimizes the energy consumption and turbulence of the incoming flow. The airflow passes through the guide effect of the wind pocket 107, vertically blows the windward turbine 103 of the lower circular cavity 110, and then blows the rain blocking turbine 101 of the lower circular cavity 110. The airflow enters the lower circular cavity 110. The faster the incoming flow speed, the faster the turbine rotation speed, and the more rain under the crotch, the more obvious the rain blocking effect. Thus, the rain is intercepted for the first time.
[0037] (2)Double cavity heat dissipation device running process two. After the airflow enters the lower circular cavity 110, it immediately rises through the middle partition net 106 into the upper circular cavity 102. The middle partition net 106 can block debris and directly block part of the rain through the mesh. In heavy rain, it can also form a water film to block most of the rain. Thus, the rain is intercepted for the second time.
[0038] (3)Double cavity heat dissipation device running process three. After the airflow enters the upper circular cavity 102, it blows the windward turbine 103 of the upper circular cavity 102, and then blows the rain blocking turbine 101 of the upper circular cavity 102. The airflow enters the interior of the helicopter. Thus, the rain is intercepted for the third time.
[0039] (4)Double cavity heat dissipation device running process four. The rain blocked by the turbine and the middle partition net 106 is collected through the rain collecting cavity 109 at the bottom of the lower circular cavity 110, and then discharged outside the machine through the rain hole 108.
[0040] Example two
[0041] A helicopter air inlet rainproof heat dissipation structure, a single cavity heat dissipation device is composed of a panel 201, a windward turbine 202, a wind pocket 203, a rain hole 204, a rain collecting cavity 205, a circular cavity 206, a bottom plate 207, a turbine shaft 208, a rain blocking turbine 209, and a bottom partition net 210.
[0042] (1)The main components and principles of the single cavity heat dissipation device are highly consistent with those of the double cavity heat dissipation device, but there is only one cavity, one set of turbine structure, no middle partition net 106, and only a bottom partition net 210. The bottom partition net 210 is installed on the bottom plate 207 on the side close to the helicopter cabin of the circular cavity 206, and is a semicircular structure. The function of the bottom partition net 210 is the same as that of the middle partition net 106.
[0043] (2)The single cavity heat dissipation device has fewer cavities, fewer turbine devices, and shorter airflow path, so the heat dissipation effect is better than that of the double cavity heat dissipation device, but the rain blocking ability is poorer than that of the double cavity heat dissipation device.
[0044] (3) Single cavity heat dissipation device operation process one. The airflow with rainwater enters the wind pocket 203, and the wind pocket 203 minimizes the energy consumption and turbulence of the incoming flow. The airflow passes through the guide effect of the wind pocket 203, vertically blows the windward turbine 203 of the circular cavity 206, and then blows the rain blocking turbine 209. The airflow enters the circular cavity 206. The faster the incoming flow speed, the faster the rotation speed of the turbine, and the more rainwater under the crotch, the more obvious the rain blocking effect. Thus, the rainwater is first intercepted.
[0045] (4) Single cavity heat dissipation device operation process two. After the airflow enters the circular cavity 206, it immediately rises and penetrates through the bottom screen 210 into the inside of the helicopter. The bottom screen 210 can block debris and can directly block part of the rainwater through the screen. In heavy rain, it can also form a water film to block most of the rainwater. Thus, the rainwater is secondly intercepted.
[0046] (5) Single cavity heat dissipation device operation process three. The rainwater blocked by the turbine and the bottom screen 210 is collected through the rain collecting cavity 205 at the bottom of the circular cavity 206, and is discharged outside the machine through the rain hole 204.
[0047] (4) The key points of the utility model:
[0048] (1) The turbine structure is coaxial with the circular opening of the circular cavity, the rain blocking turbine 101 and the windward turbine 103 are consistent in size, the diameter thereof is slightly smaller than the diameter of the circular opening of the circular cavity, and the blades of the rain blocking turbine 101 and the windward turbine 103 are installed in an interlaced phase.
[0049] (2) The wind deflector of the wind pocket 203 is 45° with the turbine axis, which aims to minimize the energy consumption and turbulence of the incoming flow. The wind pocket 203 can be provided with one or multiple, when one is provided, the wind pocket is high, the wind is more, and the heat dissipation effect is better, but the influence on the aerodynamic shape of the helicopter is also greater, when multiple are provided, the wind pocket is small, the influence on the aerodynamic shape of the helicopter is also smaller, but the wind is less, and the heat dissipation effect is slightly worse.
[0050] (3) The middle screen 106 has three functions, that is, blocking debris, directly blocking part of the rainwater through the screen, and forming a water film to block most of the rainwater in heavy rain. The rainwater blocked by the turbine and the middle screen 106 is collected through the rain collecting cavity 109 at the bottom of the lower circular cavity 110, and is discharged outside the machine through the rain hole 108.
[0051] (4) The bottom screen 210 has the same function as the middle screen 106.
[0052] (5) The single cavity heat dissipation device has fewer cavities, fewer turbine devices, and shorter airflow path, and the heat dissipation effect is better than that of the double cavity heat dissipation device, but the rainwater blocking capacity is poorer than that of the double cavity heat dissipation device.
[0053] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A helicopter air inlet rain exclusion cooling structure, characterized by: The structure comprises a wind scoop, a panel, a turbine group, and a bottom plate. The panel and the bottom plate form a circular cavity. The turbine group is coaxially installed in the circular cavity. The panel is provided with an opening on one side to connect with the wind scoop. The bottom plate is provided with an opening on one side to connect with the helicopter cabin. The turbine group comprises a turbine shaft, a windward turbine coaxially installed on the turbine shaft, and a rain blocking turbine coaxially installed on the turbine shaft.
2. The structure of claim 1, wherein: The windward turbine is installed on the side close to the wind scoop, and the rain blocking turbine is installed on the side close to the helicopter cabin.
3. The structure of claim 2, wherein: The windward turbine and the rain blocking turbine are installed in a staggered manner.
4. The structure of claim 3, wherein: The lower part of the circular cavity is a rain collecting cavity, and the rain collecting cavity is connected with the wind scoop through a rain discharging hole. The wind scoop is composed of two side plates and a wind guide plate. The plane of the wind guide plate forms a 45° angle with the turbine axis.
5. The structure of claim 4, wherein: The structure comprises an upper circular cavity, a lower circular cavity, and two turbine groups.
6. The structure of claim 5, wherein: The lower circular cavity is provided with an opening to connect with the wind scoop, and the upper circular cavity is provided with an opening to connect with the helicopter cabin. The upper turbine group is arranged on the side close to the helicopter cabin, and the lower turbine group is arranged on the side close to the wind scoop. An intermediate partition net is arranged between the upper circular cavity and the lower circular cavity. A bottom partition net is arranged between the circular cavity and the helicopter cabin.