Enclosed high-efficiency heat sink gas source assembly for on-board oxygen systems

Abstract

The utility model discloses a kind of closed high-efficiency heat dissipation air source components for airborne oxygen system, belong to the production technical field of airborne oxygen system, including compressor, controller, heat dissipation fan, closed shell, air inlet pipe, flow guide support, guide vane and air outlet pipe, compressor and controller are respectively installed on air source bottom plate, air source bottom plate is installed on mounting bottom plate, the lower end of closed shell is sealedly connected with air source bottom plate, compressor, controller, flow guide support and guide vane are all placed in closed shell, air inlet pipe is installed on the upper portion of the lateral wall of closed shell and close to the top of compressor, the upper end of air outlet pipe is installed on mounting bottom plate, heat dissipation fan is installed on flow guide support and its air inlet is connected with the inner end of air inlet pipe, guide vane is located between heat dissipation fan and controller and forms three air ducts in closed shell.The utility model can realize all-around sustained high-efficiency heat dissipation for compressor and controller, provide guarantee for its stable and reliable work.

Description

Technical Field

[0001] This utility model belongs to the field of airborne oxygen system production technology, specifically relating to a closed-type high-efficiency heat dissipation air source component for airborne oxygen systems. Background Technology

[0002] The airborne oxygen system is a dedicated oxygen supply system for aviation equipment such as aircraft. It mainly consists of an air source assembly, an oxygen concentrator, an oxygen regulator, emergency oxygen cylinders, and piping assemblies. The air source assembly generates compressed air, and includes a compressor, a control unit, and related structures. The control unit at least includes a controller primarily used to control the compressor's operation (here, the controller refers to an electronic device including control electronics and its housing). Typically, the control unit also includes a filter connected to the controller. The compressor and controller are mounted on the air source base plate, which, to save space, is directly installed on the aircraft's cockpit floor.

[0003] Both the compressor and controller of the gas source component need to operate continuously during operation. Due to their inherent characteristics, these two components generate high levels of heat. In particular, the compressor generates temperatures of several hundred degrees Celsius due to the rapid compression of gas. Excessive temperature can lead to various problems. For example, excessively high compressor temperature can cause accelerated wear of mechanical parts and may lead to mechanical failure. It also poses a risk of damage to the electrical system, causing intermittent compressor shutdowns, as well as problems such as seal failure, lubricant leakage, and motor fires. Excessively high controller temperature can cause various problems such as chip frequency reduction, reduced performance of electronic components, slower response, command delay, reduced control accuracy, abnormal signal transmission, cracked circuit board solder joints, loss of stored data, and short circuits.

[0004] Therefore, both the compressor and controller of the air supply component need effective heat dissipation to meet their normal operating requirements and extend their service life. Traditional air supply component heat dissipation is generally achieved through simple fan cooling, which involves directly blowing cold air onto the compressor and controller casing using a cooling fan. This traditional cooling method is not ideal and may lead to excessively high temperatures after a short period of operation, causing the controller to shut down the compressor, thus reducing operating time and efficiency; or the controller may fail to shut down the compressor in time, resulting in the various problems caused by the aforementioned high temperatures. Utility Model Content

[0005] The purpose of this invention is to provide a closed-type high-efficiency heat dissipation air source component for airborne oxygen systems that can significantly improve heat dissipation effect in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system includes a compressor, a controller, and a cooling fan. The compressor and the controller, which are interconnected, are respectively mounted on an air source base plate. The air source base plate is mounted on a mounting base plate. The lower middle part of the air source base plate has an inner cavity with an open bottom. The upper bottom of the inner cavity has multiple vertically penetrating holes. The lower end of the inner cavity wall is sealed to the top of the mounting base plate. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system also includes a sealed housing. The enclosure comprises an air inlet duct, a flow guide bracket, a flow guide plate, and an air outlet duct. The lower end of the enclosed housing is sealed to the air source base plate. The compressor, the controller, the flow guide bracket, and the flow guide plate are all housed within the enclosed housing. The horizontal air inlet duct is installed on the upper side wall of the enclosed housing, near the compressor. The upper end of the vertical air outlet duct is installed on the mounting base plate and communicates with the inner cavity of the base plate. The cooling fan is mounted on the flow guide bracket, and its air inlet is connected to the inner end of the air inlet duct. The flow guide plate is located within the enclosure. The cooling fan and the controller form three air ducts within the enclosed housing: The first air duct: an air duct from the cooling fan outlet that passes sequentially through the transverse gap between the upper outer wall of the compressor and the upper inner wall of the enclosed housing, the vertical gap between the vertical outer wall of the compressor and the corresponding vertical inner wall of the enclosed housing, and the corresponding bottom plate through-hole before entering the inner cavity of the bottom plate; the second air duct: an air duct from the cooling fan outlet that passes sequentially through the gap between the upper outer wall of the compressor and the upper inner wall of the enclosed housing... The air duct is formed by passing through the lateral gap, the lateral gap between the upper outer wall of the controller and the upper inner wall of the enclosed housing, the vertical gap between the vertical outer wall of the controller and the corresponding vertical inner wall of the enclosed housing, and the corresponding through hole of the bottom plate before entering the inner cavity of the bottom plate; the third air duct is formed by passing through the air outlet of the cooling fan in sequence through the lateral gap between the upper outer wall of the compressor and the upper inner wall of the enclosed housing, the vertical gap between the compressor and the controller, and the corresponding through hole of the bottom plate before entering the inner cavity of the bottom plate.

[0008] Preferably, in order to easily and reliably assemble and form three air ducts, the guide plate is an arc-shaped plate. The lower end of the guide plate is installed on the top of the compressor or on the guide bracket and located between the cooling fan and the controller. The lateral width direction of the guide plate is perpendicular to the air outlet direction of the cooling fan. The upper middle part of the guide plate is bent towards the cooling fan to form an arc shape. The guide plate is provided with multiple lateral guide holes.

[0009] Preferably, in order to better distribute the air volume in the three air ducts to achieve a more balanced heat dissipation effect, the top of the compressor is lower than the top of the controller, the upper end of the guide plate is higher than the top of the controller, a gap is left between the upper end of the guide plate and the upper inner wall of the enclosed housing, and the upper and lower parts of the guide plate are respectively provided with multiple guide holes, while the middle part has no guide holes.

[0010] Preferably, in order to achieve better heat dissipation, heat dissipation fins are provided on the vertical outer wall of the controller on the side closer to the compressor, the vertical outer wall on the side farther from the compressor, and the upper outer wall thereon.

[0011] Preferably, in order to facilitate the installation of the air guide bracket and the formation of the second and third air ducts, the controller has controller side plates on the opposite outer walls of the two sides where the heat dissipation fins are not provided. The top and two sides of the controller side plates extend out of the controller housing. The air guide bracket is installed on the top of the two controller side plates and on the top of the compressor.

[0012] Preferably, in order to achieve the filtering function, a filter is installed on the outer wall of one of the controller side panels, and the controller and the filter together constitute a control unit.

[0013] Preferably, in order to better protect the exhaust pipe and facilitate its installation at the aircraft's exit honeycomb layer, a filter screen is installed at the upper end of the exhaust pipe, and a connecting piece is provided at the lower end of the exhaust pipe, with connecting screws installed on the connecting piece.

[0014] Preferably, to avoid safety hazards caused by the blades of the cooling fan, a protective cover is installed at the air outlet of the cooling fan.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention, by adding a closed housing and setting three air ducts inside the housing, can blow cold air from the top of the compressor, from the top of the controller, and from the gap between the compressor and the controller, thereby achieving continuous and efficient heat dissipation for the compressor and controller from all directions. This ensures the stable and reliable operation of the air source components of the airborne oxygen system and extends the service life of the product. Attached Figure Description

[0017] Figure 1 This is a rear top-view three-dimensional structural diagram of the closed high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model;

[0018] Figure 2This is a front top three-dimensional structural diagram of the closed high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model after removing the mounting base plate, air inlet pipe and exhaust pipe;

[0019] Figure 3 This is a front top three-dimensional structural diagram of the closed high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model after removing the mounting base plate, air inlet pipe, exhaust pipe and closed shell.

[0020] Figure 4 This is a front-view perspective three-dimensional structural diagram of the control unit of the closed high-efficiency heat dissipation air source assembly for the airborne oxygen system described in this utility model;

[0021] Figure 5 This is a front-view perspective three-dimensional structural diagram of the air source base plate of the closed high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model.

[0022] Figure 6 This is a front-view three-dimensional structural diagram of the exhaust pipe of the closed-type high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model;

[0023] Figure 7 This is a front top three-dimensional structural diagram of the guide plate of the closed high-efficiency heat dissipation air source assembly for airborne oxygen system described in this utility model;

[0024] Figure 8 This is a front cross-sectional view of the closed-type high-efficiency heat dissipation air source component for airborne oxygen systems described in this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-8As shown, the closed-type high-efficiency heat dissipation air source assembly for an airborne oxygen system of this utility model includes a compressor 10, a controller 15, a cooling fan 14, a closed housing 3, an air inlet pipe 4, a flow guide bracket 9, a flow guide plate 11, and an air outlet pipe 6. The compressor 10 and the controller 15, which are connected to each other, are respectively mounted on the air source base plate 2. The air source base plate 2 is mounted on the mounting base plate 1. The lower middle part of the air source base plate 2 is provided with a base plate cavity 17 with an opening at the lower end. The upper bottom of the base plate cavity 17 is provided with multiple vertical through holes 16. The lower end of the cavity wall of the base plate cavity 17 is connected to the mounting base plate 1. The upper part of plate 1 is sealed and connected, and the lower end of the closed housing 3 is sealed and connected to the air source base plate 2. The compressor 10, controller 15, guide bracket 9 and guide plate 11 are all placed inside the closed housing 3. The horizontal air inlet pipe 4 is installed on the upper part of the side wall of the closed housing 3 and close to the upper part of the compressor 10. The upper end of the vertical air outlet pipe 6 is installed on the mounting base plate 1 and communicates with the inner cavity 17 of the base plate. The cooling fan 14 is installed on the guide bracket 9 and its air inlet is connected to the inner end of the air inlet pipe 4. The guide plate 11 is located between the cooling fan 14 and the controller 15 and forms a shape inside the closed housing 3. The following three air ducts are configured: The first air duct: The air from the outlet of the cooling fan 14 passes sequentially through the transverse gap between the upper outer wall of the compressor 10 and the upper inner wall of the sealed housing 3, the vertical gap between the vertical outer wall of the compressor 10 and the corresponding vertical inner wall of the sealed housing 3, and the corresponding bottom plate through hole 16 before entering the bottom plate cavity 17. The second air duct: The air from the outlet of the cooling fan 14 passes sequentially through the transverse gap between the upper outer wall of the compressor 10 and the upper inner wall of the sealed housing 3, the transverse gap between the upper outer wall of the controller 15 and the upper inner wall of the sealed housing 3, and the transverse gap between the upper outer wall of the controller 15 and the upper inner wall of the sealed housing 3. The air duct enters the inner cavity 17 of the base plate after passing through the vertical gap between the vertical outer wall of the controller 15 and the corresponding vertical inner wall of the closed housing 3 and the corresponding bottom plate through hole 16. The upper part of the closed housing 3 away from the corner of the compressor 10 is preferably arc-shaped to facilitate the cold air to turn and flow downward. The third air duct: the air duct enters the inner cavity 17 of the base plate after passing through the horizontal gap between the upper outer wall of the compressor 10 and the upper inner wall of the closed housing 3, the vertical gap between the compressor 10 and the controller 15 and the corresponding bottom plate through hole 16 from the outlet of the cooling fan 14.

[0027] like Figures 1-8 As shown, this utility model also discloses the following more optimized specific structures:

[0028] To facilitate simple and reliable assembly and the formation of three air ducts, the guide plate 11 is an arc-shaped plate. The lower end of the guide plate 11 is mounted on the compressor 10 (or on the guide bracket 9) and located between the cooling fan 14 and the controller 15. The lateral width of the guide plate 11 is perpendicular to the air outlet direction of the cooling fan 14. The upper middle part of the guide plate 11 is bent towards the cooling fan 14 to form an arc shape. The guide plate 11 is provided with multiple lateral guide holes 12.

[0029] In order to better distribute the air volume in the three air ducts to achieve a more balanced heat dissipation effect, the top of the compressor 10 is lower than the top of the controller 15, the top of the guide plate 11 is higher than the top of the controller 15, a gap is left between the top of the guide plate 11 and the upper inner wall of the closed housing 3, and the upper and lower parts of the guide plate 11 are respectively provided with a plurality of guide holes 12, but there are no guide holes 12 in the middle.

[0030] To achieve better heat dissipation, heat dissipation fins 8 are provided on the vertical outer wall of the controller 15 on the side closer to the compressor 10, the vertical outer wall on the side farther from the compressor 10, and the upper outer wall thereon.

[0031] To facilitate the installation of the air guide bracket 9 and the formation of the second and third air ducts, the controller 15 has controller side plates 7 on the opposite outer walls of the non-heating fins 8. The top and two sides of the controller side plates 7 extend out of the housing of the controller 15. The air guide bracket 9 is installed on the top of the two controller side plates 7 and the top of the compressor 10.

[0032] To achieve the filtering function, a filter 5 is installed on the outer wall of one of the controller side panels 7. The controller 15 and the filter 5 together form a control unit.

[0033] To better protect the exhaust pipe 6 and facilitate its installation at the aircraft's exit honeycomb layer, a filter screen 18 is installed at the upper end of the exhaust pipe 6, and a connecting piece 19 is provided at the lower end of the exhaust pipe 6. A connecting screw 20 is installed on the connecting piece 19.

[0034] To avoid safety hazards caused by the blades of the cooling fan 14, a protective cover 13 is installed at the air outlet of the cooling fan 14.

[0035] like Figures 1-8 As shown, in application, the aircraft cockpit floor is used as the mounting base 1, and the air source base plate 2 is installed on the aircraft cockpit floor to form the inner cavity 17 of the base plate; through holes are opened on the aircraft cockpit floor and side plate respectively for installing the exhaust pipe 6 and the air intake pipe 4. The bottom of the exhaust pipe 6 is fixed to the aircraft's cabin honeycomb layer by two connecting pieces 19 and connecting screws 20, so the bottom end of the exhaust pipe 6 is connected to the external environment of the cabin; one end of the air intake pipe 4 is installed at the air intake of the cooling fan 14 by screws, and the other end passes through the through hole on the aircraft side plate to connect to the external environment of the cabin. After installation, the compressor 10 operates under the control of the controller 15, generating high-pressure gas and sending it out as the oxygen source for the airborne oxygen system; at the same time, the cooling fan 14 continues to work synchronously, introducing cold air from outside the cabin into the closed space inside the closed shell 3 through the air intake pipe 4. After the cold air is sent out from the cooling fan 14, under the action of the guide plate 11, it flows through the three air ducts mentioned above (see reference). Figure 8The air flows, forming hot air that gathers inside the bottom plate cavity 17, and then is discharged to the outside of the engine compartment through the exhaust pipe 16. The cold air in the three air ducts provides multi-directional and efficient heat dissipation for the compressor 10 and the controller 15. The specific heat dissipation principle is as follows:

[0036] 1. The cold air in the first air duct flows from the top of the compressor 10 downwards. The cold air enters the scroll assembly of the compressor 10, passes through the gap between the rotating scroll plate and the fixed scroll plate, and passes through the gap between the compressor 10 and the closed housing 3. It carries away the heat generated when the scroll assembly moves at high speed. While reducing the operating temperature of the compressor 10, it can also reduce the heat radiation of the compressor 10 to the controller 15. This cold air finally enters the inner cavity 17 of the base plate.

[0037] 2. After the cold air from the second air duct comes into contact with the heat dissipation fins 8 on the top of the controller 15, it carries away the heat from the internal electronic components. Then it comes into contact with the inner cavity of the sealed housing 3. The contact surface is designed as an arc surface, so that the cold air flows downward and comes into full contact with the heat dissipation fins 8 on the back of the controller 15, further carrying away the heat from the internal electronic components. This cold air finally enters the inner cavity 17 of the base plate.

[0038] 3. The cold air in the third air duct comes into contact with the front of the controller 15, causing the cold air to flow downward and make full contact with the heat dissipation fins 8 on the front of the controller 15, carrying away the heat of the internal electronic components, and at the same time carrying away the heat of the corresponding side of the compressor 10. This cold air finally enters the inner cavity 17 of the base plate.

[0039] Ultimately, all three cooling air streams enter the inner cavity 17 of the base plate and are discharged to the outside of the engine compartment through the exhaust pipe 16, achieving a highly efficient and continuous cooling effect and ensuring the stability and reliability of the air source components.

[0040] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A closed-type high-efficiency heat dissipation air source assembly for an airborne oxygen system, comprising a compressor, a controller, and a cooling fan, wherein the compressor and the controller, which are interconnected, are respectively mounted on an air source base plate, the air source base plate is mounted on a mounting base plate, the lower middle part of the air source base plate has a base plate cavity with an open lower end, the upper bottom of the base plate cavity has a plurality of vertically penetrating base plate through holes, and the lower end of the cavity wall of the base plate cavity is sealed to the upper surface of the mounting base plate, characterized in that: The closed-type high-efficiency heat dissipation air source assembly for an airborne oxygen system further includes a closed housing, an air inlet pipe, a flow guide bracket, a flow guide plate, and an air outlet pipe. The lower end of the closed housing is sealed to the air source base plate. The compressor, the controller, the flow guide bracket, and the flow guide plate are all placed inside the closed housing. The horizontal air inlet pipe is installed on the upper part of the side wall of the closed housing and close to the upper part of the compressor. The upper end of the vertical air outlet pipe is installed on the mounting base plate and communicates with the inner cavity of the base plate. The heat dissipation fan is installed on the flow guide bracket and its air inlet is connected to the inner end of the air inlet pipe. The flow guide plate is located between the heat dissipation fan and the controller and forms the following three air ducts inside the closed housing: The first air duct: from the air outlet of the heat dissipation fan, it passes sequentially between the upper outer wall of the compressor and the upper inner wall of the closed housing. The first air duct is a lateral gap, a vertical gap between the compressor's vertical outer wall and the corresponding vertical inner wall of the enclosed housing, and a corresponding bottom plate through hole, before entering the inner cavity of the base plate; the second air duct is a duct that enters the inner cavity of the base plate from the outlet of the cooling fan by passing sequentially through the lateral gap between the upper outer wall of the compressor and the upper inner wall of the enclosed housing, the lateral gap between the upper outer wall of the controller and the upper inner wall of the enclosed housing, the vertical gap between the vertical outer wall of the controller and the corresponding vertical inner wall of the enclosed housing, and a corresponding bottom plate through hole; the third air duct is a duct that enters the inner cavity of the base plate from the outlet of the cooling fan by passing sequentially through the lateral gap between the upper outer wall of the compressor and the upper inner wall of the enclosed housing, the vertical gap between the compressor and the controller, and a corresponding bottom plate through hole.

2. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to claim 1, characterized in that: The guide plate is an arc-shaped plate. The lower end of the guide plate is installed on the top of the compressor or on the guide bracket and located between the cooling fan and the controller. The horizontal width direction of the guide plate is perpendicular to the air outlet direction of the cooling fan. The upper middle part of the guide plate is bent towards the cooling fan to form an arc shape. The guide plate is provided with multiple horizontal guide holes.

3. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to claim 2, characterized in that: The top of the compressor is lower than the top of the controller, the upper end of the guide plate is higher than the top of the controller, there is a gap between the upper end of the guide plate and the upper inner wall of the enclosed housing, and the upper and lower parts of the guide plate are respectively provided with a plurality of guide holes, but there are no guide holes in the middle part.

4. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to any one of claims 1-3, characterized in that: The controller has heat dissipation fins on its vertical outer wall near the compressor, its vertical outer wall away from the compressor, and its upper outer wall.

5. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to claim 4, characterized in that: The controller has controller side plates on its opposite outer walls where there are no heat dissipation fins. The top and two sides of the controller side plates extend out of the controller housing. The flow guide bracket is installed on the top of the two controller side plates and on the top of the compressor.

6. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to claim 5, characterized in that: A filter is installed on the outer wall of one of the controller side panels.

7. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to any one of claims 1-3, characterized in that: A filter screen is installed at the upper end of the exhaust pipe, and a connecting piece is provided at the lower end of the exhaust pipe. A connecting screw is installed on the connecting piece.

8. The closed-loop high-efficiency heat dissipation air source assembly for an airborne oxygen system according to any one of claims 1-3, characterized in that: The exhaust end of the cooling fan is equipped with a protective cover.

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