A decentralized electronic regulation passenger emergency oxygen unit

Abstract

This utility model relates to emergency oxygen supply for passengers on civil aircraft, specifically a decentralized electronically regulated emergency oxygen unit for passengers. It includes: a decentralized oxygen cylinder assembly, an electromagnetic latch, an oxygen supply control regulator, passenger oxygen masks, and a passenger oxygen mask housing. The decentralized oxygen cylinder assembly, electromagnetic latch, and oxygen supply control regulator are fixed inside the passenger oxygen mask housing. The decentralized oxygen cylinder assembly is connected to the oxygen supply control regulator via piping, and the oxygen supply control regulator is connected to the passenger oxygen masks via piping. The oxygen supply control regulator is connected to and controls the electromagnetic latch via a cable. The electromagnetic latch controls a small door in the passenger oxygen mask housing; opening the door releases the passenger oxygen masks. A tether is attached to each passenger oxygen mask and connected to the decentralized oxygen cylinder assembly. The oxygen supply control regulator is electrically connected to the onboard jettison control circuit, the onboard BIT module, and the onboard avionics system to control the oxygen supply to the passenger oxygen masks based on onboard signals.

Description

Technical Field

[0001] This utility model pertains to emergency oxygen supply for civil aircraft passengers, specifically involving a decentralized electronically regulated emergency oxygen unit for passengers. Background Technology

[0002] Currently, oxygen units in the civilian sector all use chemical oxygen generators as the oxygen source, and each passenger oxygen mask is equipped with a reservoir bag, so oxygen can only be supplied to passengers through continuous oxygen supply.

[0003] The disadvantages of the above structure are: when the oxygen supply time reaches more than 50 minutes, the passenger oxygen unit with chemical oxygen generator as oxygen source is heavy and bulky, and the chemical oxygen generator will continue to heat up when working for a long time, which poses a safety risk to the passenger oxygen unit. Utility Model Content

[0004] Purpose of the utility model: To provide a decentralized electronically regulated passenger emergency oxygen unit, which aims to improve oxygen efficiency, reduce the total weight of the equipment, and enhance equipment safety.

[0005] Technical solution: A decentralized electronically regulated passenger emergency oxygen unit includes: a decentralized oxygen cylinder assembly 1, an electromagnetic latch 2, an oxygen supply control regulator 3, passenger oxygen masks 4, and passenger oxygen mask housing 5, wherein... The dispersed oxygen cylinder assembly 1, the electromagnetic latch 2, and the oxygen supply control regulator 3 are fixed inside the passenger oxygen mask box 5. The dispersed oxygen cylinder assembly 1 is connected to the oxygen supply control regulator 3 through a pipeline. The oxygen supply control regulator 3 is connected to the passenger oxygen mask 4 through a pipeline. The oxygen supply control regulator 3 is connected to control the electromagnetic latch 2 through a cable. The switch of the electromagnetic latch 2 is used to control the small door of the passenger oxygen mask box 5. After the small door is opened, the passenger oxygen mask 4 is thrown out. The passenger oxygen mask 4 is equipped with a tether rope, which is connected to the dispersed oxygen cylinder assembly 1 and is used to activate the dispersed oxygen cylinder assembly 1. The oxygen supply control regulator 3 is electrically connected to the onboard jettison control circuit, the onboard BIT module, and the onboard avionics system to control the oxygen supply to the passenger oxygen mask 4 according to onboard signals.

[0006] Furthermore, the dispersed oxygen cylinder assembly 1 is fixed inside the passenger oxygen mask box 5 by clamps.

[0007] Furthermore, the electromagnetic latch 2 is fixed inside the passenger oxygen mask box 5 by screws.

[0008] Furthermore, the oxygen supply control regulator 3 is fixed inside the passenger oxygen mask box 5 by a bracket.

[0009] Furthermore, a pressure sensor is installed on the connecting pipe between the oxygen supply control regulator 3 and the passenger oxygen mask 4.

[0010] Furthermore, the oxygen supply control regulator 3 is equipped with an altitude sensor, which is used to adjust the oxygen supply to the passenger oxygen mask 4 according to the altitude signal.

[0011] Beneficial effects: This product uses a distributed oxygen cylinder assembly as its oxygen source, eliminating safety concerns such as continuous heat generation. Furthermore, the product uses a controller to adjust the oxygen supply rate at different altitudes, reducing the weight and volume of the oxygen unit while ensuring passengers' minimum physiological needs are met, thus improving equipment safety. The equipment can also be reliably updated through BIT self-tests and ground software upgrades. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a distributed electronically regulated passenger emergency oxygen unit according to an embodiment of the present invention; Figure 2 This is a structural diagram of a decentralized electronically regulated passenger emergency oxygen unit according to an embodiment of the present invention. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0014] In the description of this utility model, it should be understood that the terms "center", "axial", "vertical", "upper", "lower", "upper end", "bottom end", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0015] This application proposes a stable and efficient oxygen supply device for high-altitude, long-endurance flight descent profiles. It reduces the volume and weight of the oxygen unit while meeting the minimum physiological needs of passengers, thus improving the safety of the oxygen unit. The distributed oxygen cylinder assembly stores high-pressure pure oxygen in a sealed manner, and the oxygen supply rate is adjusted by a controller to improve oxygen utilization efficiency, reduce the overall weight of the equipment, and enhance equipment safety.

[0016] like Figure 1 and Figure 2 A decentralized electronically regulated passenger emergency oxygen unit includes: a decentralized oxygen cylinder assembly 1, an electromagnetic latch 2, an oxygen supply control regulator 3, a passenger oxygen mask 4, and a passenger oxygen mask housing 5. The decentralized oxygen cylinder assembly 1, electromagnetic latch 2, and oxygen supply control regulator 3 are fixed inside the passenger oxygen mask housing 5. The decentralized oxygen cylinder assembly 1 is connected to the oxygen supply control regulator 3 via a pipeline. The oxygen supply control regulator 3 is connected to the passenger oxygen mask 4 via a pipeline. The oxygen supply control regulator 3 is connected to and controls the electromagnetic latch 2 via a cable. The electromagnetic latch 2 is used to control a small door in the passenger oxygen mask housing 5; when the small door is opened, the passenger oxygen mask 4 is dropped. A tether is provided on the passenger oxygen mask 4, and the tether is connected to the decentralized oxygen cylinder assembly 1 to activate the decentralized oxygen cylinder assembly 1. The oxygen supply control regulator 3 is electrically connected to the onboard jettison control circuit, the onboard BIT module, and the onboard avionics system to control the oxygen supply to the passenger oxygen mask 4 according to onboard signals.

[0017] In one possible embodiment, the dispersed oxygen cylinder assembly 1 is secured to the passenger oxygen mask box 5 by clamps.

[0018] In one possible embodiment, the electromagnetic latch 2 is secured to the passenger oxygen mask box 5 by screws.

[0019] In one possible embodiment, the oxygen supply control regulator 3 is fixed inside the passenger oxygen mask box 5 by a bracket.

[0020] In one possible embodiment, a pressure sensor is installed on the connection line between the oxygen supply control regulator 3 and the passenger oxygen mask 4.

[0021] In one possible embodiment, the oxygen supply control regulator 3 is equipped with an altitude sensor for adjusting the oxygen supply to the passenger oxygen mask 4 based on the altitude signal.

[0022] In one possible embodiment, the oxygen supply control regulator 3 has BIT self-test, oxygen supply indication, and ground upgrade and maintenance functions.

[0023] In one possible embodiment, the oxygen supply controller 3 supplies oxygen to the passenger oxygen mask 4 via the regulation of a solenoid valve.

[0024] This invention prioritizes product safety by employing a decentralized oxygen cylinder assembly as the oxygen source, avoiding safety hazards caused by high temperatures and prolonged heating. Furthermore, the decentralized electronically regulated passenger emergency oxygen unit features multiple BIT self-test modes, enhancing product reliability. To reduce the overall weight of the passenger oxygen unit, the device utilizes a servo-controlled oxygen supply system, providing oxygen based on individual breathing rates. Physiological testing has verified that the device meets the minimum physiological needs of the human body. The electronically regulated servo-controlled oxygen supply improves oxygen supply efficiency and reduces oxygen waste, thereby achieving the goal of reducing equipment weight and size.

[0025] The working principle of this invention is as follows: This product works in conjunction with the aircraft's power supply module, BIT module, and avionics module. When the oxygen supply control regulator 3 receives a signal from the aircraft's altitude pressure switch, it begins to supply power to the electromagnetic latch 2, which is then de-energized after 5 seconds. After the electromagnetic latch 2 is powered on, the small door of the passenger oxygen mask box 5 is opened, causing the passenger oxygen mask 4 to be dropped. When the passenger puts on the passenger oxygen mask 4, they pull the tether rope, activating the dispersed oxygen cylinder assembly 1. After the dispersed oxygen cylinder assembly 1 is activated, it transmits depressurized oxygen to the oxygen supply control regulator 4. The oxygen supply control regulator 3 begins to servo-supply oxygen according to the oxygen supply demand calibrated by physiological tests. When the oxygen supply control regulator 3 senses a negative pressure inside the passenger oxygen mask 4, it supplies the corresponding amount of oxygen based on the altitude measured by the altitude sensor on the oxygen supply control regulator 3, and then closes the valve until the next negative pressure is sensed.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A decentralized electronically regulated passenger emergency oxygen unit, characterized in that, include: The components include a distributed oxygen cylinder assembly (1), an electromagnetic latch (2), an oxygen supply control regulator (3), passenger oxygen masks (4), and a passenger oxygen mask box (5), among which... The dispersed oxygen cylinder assembly (1), the electromagnetic latch (2), and the oxygen supply control regulator (3) are fixed inside the passenger oxygen mask box (5). The dispersed oxygen cylinder assembly (1) is connected to the oxygen supply control regulator (3) through a pipeline. The oxygen control regulator (3) is connected to the passenger oxygen mask (4) through a pipeline. The oxygen supply control regulator (3) is connected to control the electromagnetic latch (2) through a cable. The switch of the electromagnetic latch (2) is used to control the small door of the passenger oxygen mask box (5). After the small door is opened, the passenger oxygen mask (4) is thrown out. The passenger oxygen mask (4) is equipped with a tether rope, which is connected to the dispersed oxygen cylinder assembly (1) and is used to activate the dispersed oxygen cylinder assembly (1). The oxygen supply control regulator (3) is electrically connected to the onboard jettison control circuit, the onboard BIT module, and the onboard avionics system to control the oxygen supply to the passenger oxygen mask (4) according to the onboard signal.

2. The decentralized electronically regulated passenger emergency oxygen unit according to claim 1, characterized in that, The dispersed oxygen cylinder assembly (1) is fixed inside the passenger oxygen mask box (5) by clamps.

3. The decentralized electronically regulated passenger emergency oxygen unit according to claim 1, characterized in that, The electromagnetic latch (2) is fixed inside the passenger oxygen mask box (5) by screws.

4. The decentralized electronically regulated passenger emergency oxygen unit according to claim 1, characterized in that, The oxygen supply control regulator (3) is fixed inside the passenger oxygen mask box (5) by a bracket.

5. The decentralized electronically regulated passenger emergency oxygen unit according to claim 1, characterized in that, A pressure sensor is installed on the connecting pipe between the oxygen supply control regulator (3) and the passenger oxygen mask (4).

6. The decentralized electronically regulated passenger emergency oxygen unit according to claim 1, characterized in that, An altitude sensor is installed on the oxygen supply control regulator (3) to regulate the oxygen supply to the passenger oxygen mask (4) according to the altitude signal.

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