Duct heat dissipation device of environmental control system

Abstract

The invention discloses an environment control system duct heat dissipation device which comprises a fan which is arranged in a duct and is provided with an octupole sixteen-groove structure, and a controller body which is arranged at the top of the duct and is used for controlling the fan. The fan is composed of a shell, a rear end cover part, a Hall end cover, a stator part, a rotor part, a steel wave spring and a Hall printed board part, the end of the rotor part extends out of the left side of the shell to be connected with an impeller, the right side of the rear end cover part is connected with a supporting plate through a fastener, and the supporting plate is transversely arranged in the duct; the structure is compact, the draught fan can be stably installed in the duct through the supporting plate, the overall structural strength of the heat dissipation device is greatly improved, the controller and the draught fan are integrated, installation is simple, torque output of the draught fan can be achieved so that power can be provided for the ducted fan, and heat dissipation can be effectively conducted on a civil aviation airborne system.

Description

Technical Field

[0001] This invention relates to the field of airborne environmental control equipment for civil aviation, specifically to a duct cooling device for an environmental control system. Background Technology

[0002] Civil aviation airborne environmental control systems are used to maintain the temperature, pressure, humidity, airflow speed, and cleanliness within the cabin and equipment compartments within suitable ranges throughout the flight, ensuring both passenger comfort and safety, as well as the stable operation of airborne electronic equipment. Airborne cooling requires the use of cooling fans; however, existing cooling fans have low structural strength, are easily damaged, and have complex structures, often requiring separate installation of the cooling fan and controller, which is quite difficult. Therefore, a ducted cooling device for the environmental control system is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a duct cooling device for an environmental control system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a duct cooling device for an environmental control system, comprising a fan with an eight-pole, sixteen-slot structure disposed inside the duct, and a controller body installed on the top of the duct for controlling the fan. The fan is composed of a housing, a rear end cover, a Hall effect end cover, a stator, a rotor, a steel wave spring, and a Hall effect printed circuit board. The rotor extends from the left side of the housing and is connected to an impeller. A support plate is connected to the right side of the rear end cover via fasteners. The support plate is horizontally placed inside the duct. A connector socket is provided at the top of the controller body. The controller body is composed of a filter board and a control board. The power supply wire of the fan is connected to the inside of the controller body through the connector socket, and one end of the power supply wire is connected to the Hall effect printed circuit board.

[0005] Furthermore, the side of the support plate is fastened to the inner wall of the culvert, and the support plate has screw holes for fasteners to pass through. The side view of the support plate is an "X" or "+" shaped structure.

[0006] Furthermore, the impeller body has a hollow structure, and the side view of the impeller is an annular structure. Blades are arranged at intervals on the outer side wall of the impeller, and the edges of the blades do not contact the inner wall of the duct.

[0007] Furthermore, a pad is provided between the outer wall of the housing and the inner wall of the impeller, and the cross-sectional shape of the pad is "C".

[0008] Furthermore, the bottom of the controller body and the top of the duct are both provided with through holes, through which the power supply wires pass.

[0009] The beneficial effects of this invention are: This invention features a compact structure. The fan can be securely installed inside the duct using a support plate, significantly improving the overall structural strength of the heat dissipation device. Furthermore, the controller is integrated with the fan, making installation simple. It enables the fan to output torque to power the duct fan, effectively dissipating heat for civil aviation airborne systems and facilitating the widespread use of this duct heat dissipation device in the environmental control system. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural view of the duct cooling device of the environmental control system of the present invention; Figure 2 This is a cross-sectional view of the structure of the fan of the present invention.

[0011] In the diagram: 1. Duct; 2. Support plate; 3. Impeller; 4. Blade; 5. Controller body; 6. Connector socket; 7. Fan; 71. Rear end cover assembly; 72. Hall end cover; 73. Stator assembly; 74. Rotor assembly; 75. Hall printed circuit board assembly; 8. Steel wave spring; 9. Spacer block. Detailed Implementation

[0012] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] Please see Figure 1-2 This invention provides a technical solution: a duct cooling device for an environmental control system, comprising a fan 7 with an eight-pole, sixteen-slot structure installed inside the duct 1, and a controller body 5 installed on the top of the duct 1 for controlling the fan 7. The fan 7 consists of a housing, a rear end cover component 71, a Hall effect end cover 72, a stator component 73, a rotor component 74, a steel wave spring 8, and a Hall effect printed circuit board component 75. The rotor component 74 extends from the left side of the housing and is connected to an impeller 3. The overall shape of the fan 7 housing is cylindrical. The impeller 3 mentioned above has a hollow structure. The side view of the impeller 3 is an annular structure. Blades 4 are arranged at intervals on the outer wall of the impeller 3, and the edges of the blades 4 do not contact the inner wall of the duct 1. A pad 9 is provided between the outer wall of the casing and the inner wall of the impeller 3. The cross-sectional shape of the pad 9 is "C". The pad 9 can provide auxiliary support for the impeller 3, so that the inner wall of the impeller 3 does not contact the casing of the fan 7, and when the fan 7 drives the impeller 3 to rotate, it can make the impeller 3 rotate more smoothly.

[0014] In this embodiment, a support plate 2 is connected to the right side of the rear cover component 71 via fasteners. The support plate 2 is horizontally placed inside the duct 1, and its side is fastened to the inner wall of the duct 1. The support plate 2 has screw holes for the fasteners to pass through, and its side view is "X" or "+" shaped. The fasteners are screws or bolts. A connector socket 6 is provided at the top of the controller body 5. The controller body 5 consists of a filter board component and a control board component. The filter board component and the control board component can achieve electronic commutation. The control board component uses two PCB components, integrating internal power supply, motor position calculation, speed closed-loop control, and... The filtering function can be achieved through automated or manual welding, resulting in a compact structure and convenient installation. The control board components, impeller 3, and fan 7 housings can be secured with countersunk screws. The duct cooling device of this environmental control system has good airtightness and can achieve electromagnetic isolation and rain testing. The fan 7 has a total of eight mounting support columns and housings for installation and securing. The power supply wire of the fan 7 is connected to the inside of the controller body 5 through the connector socket 6. One end of the power supply wire is connected to the Hall printed circuit board component 75, and the connector socket 6 is installed on the controller body 5. The bottom of the controller body 5 and the top of the duct 1 both have through holes through which the power supply wire passes.

[0015] The duct cooling device of this environmental control system integrates the duct 1, fan 7, and controller body 5 into a single unit. The fan 7 is installed in the middle of the duct 1, and its casing, rear end cover 71, Hall end cover 72, stator 73, rotor 74, steel wave spring 8, and Hall printed circuit board 75 are all integrated, meeting the DO-160G power supply compatibility requirements, CS and RS series electromagnetic compatibility requirements, and power supply and corona control technical requirements. The fan 7 is integrated with the controller body 5, the duct 1, and the power supply wires of the fan 7 are integrated with the controller body 5, effectively reducing the volume and space of the cooling device.

[0016] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0017] The above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be understood that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. In the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Among these, there are various ways of detachable installation, such as by using a combination of plug-in and snap-fit, or by using bolt connections, etc.

[0018] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An HVAC ducted heat sink, characterized by: The device includes a fan with an eight-pole, sixteen-slot structure installed inside a duct, and a controller body installed on top of the duct for controlling the fan. The fan consists of a housing, a rear end cover, a Hall effect end cover, a stator, a rotor, a steel wave spring, and a Hall effect printed circuit board. The rotor extends from the left side of the housing and is connected to an impeller. A support plate is connected to the right side of the rear end cover via fasteners. The support plate is horizontally placed inside the duct. A connector socket is provided at the top of the controller body. The controller body consists of a filter board and a control board. The power supply wire of the fan is connected to the inside of the controller body through the connector socket, and one end of the power supply wire is connected to the Hall effect printed circuit board.

2. The HVAC heat sink of claim 1, wherein: The side of the support plate is fastened to the inner wall of the culvert. The support plate has screw holes for fasteners to pass through, and the side view of the support plate is "X" or "+" shaped.

3. The HVAC heat sink of claim 1, wherein: The impeller body has a hollow structure, and the side view of the impeller is a circular structure. Blades are arranged at intervals on the outer side wall of the impeller, and the edge of the blade does not contact the inner wall of the duct.

4. The HVAC heat sink of claim 1, wherein: A pad is provided between the outer wall of the housing and the inner wall of the impeller, and the cross-sectional shape of the pad is "C".

5. The HVAC heat sink of claim 1, wherein: The bottom of the controller body and the top of the duct are both provided with through holes, through which the power supply wires pass.

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