Air supply device air guide tube with heating and self-closing functions

Abstract

The present invention proposes an air duct of an air supply device with heating and self-closing functions, including an air inlet, a tube body and an air outlet. The air inlet includes an air inlet shell, an electrical connector, a first connecting bolt and a second connecting bolt. The tube body contains a control and feedback cable. The air outlet includes an air duct joint, a mask joint, a connector, a radiator, a heating element, a temperature sensor, a first thermal insulation pad, a second thermal insulation pad, a fixing plate, a spring and a heating printed circuit board. The end structure of the air duct of the present invention can open and close automatically according to whether a mask or device is connected at the interface using a spring. At the same time, a heating element and a temperature sensor are integrated at the interface, and the heating amplitude can be adjusted by controlling the power of the heating element by the front-end controller, so as to ensure that the airflow with suitable temperature is output to the people or equipment in the vehicle under different environments.

Description

Technical Field

[0001] The invention belongs to the technical field of air supply systems for personnel in armored vehicles, and in particular relates to an air duct of an air supply device with heating and self-closing functions. Background Art

[0002] The air supply devices currently used in domestic armored vehicles have both conveying and heating functions, but they usually work in a combination of automatic detection and manual adjustment. In order to improve the equipment's ability to cope with different environments, the existing air supply devices need to be optimized. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The present invention provides an air duct of an air supply device with heating and self-closing functions to solve the technical problem of how to enable the air duct to achieve heating and self-closing.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention proposes an air duct for an air supply device with heating and self-closing functions, the air duct for the air supply device comprises an air inlet, a tube body and an air outlet; wherein,

[0007] The air inlet includes an air inlet shell, an electrical connector, a first connecting bolt and a second connecting bolt; wherein the air inlet shell is the main structure of the air inlet, the rear end of the air inlet shell is directly connected to the air inlet end of the tube body and is fixed by a clamp; the electrical connector is fixed to the inner side of the front end of the air inlet shell by the first connecting bolt, the interface of the electrical connector faces forward, and the wiring pins face the direction of the tube body; the second connecting bolt is used to fix the air inlet shell to the front-end device;

[0008] The tube body contains a control and feedback cable, one end of which is connected to the wiring pins of the electrical connector, and the other end passes through the tube body and is led out from the air outlet;

[0009] The air outlet includes an air duct joint, an equipment joint, a connector, a radiator, a heating element, a temperature sensor, a first thermal insulation pad, a second thermal insulation pad, a fixing plate, a spring and a heating printed circuit board; wherein the radiator, the heating element, the temperature sensor, the first thermal insulation pad, the second thermal insulation pad, the fixing plate and the heating printed circuit board together constitute an inner core; the heating printed circuit board is fixed to the fixing plate by connecting bolts, and the fixing plate is connected to the front end of the radiator by connecting bolts; the heating element and the temperature sensor are installed on the heating printed circuit board, and the rear ends of the heating element and the temperature sensor are inserted into the radiator according to the opening on the front end surface of the radiator; a first thermal insulation pad is arranged between the front end surface of the radiator and the fixing plate The rubber pad and the second thermal insulation rubber pad are installed at the rear end of the radiator through connecting bolts; the air duct joint, the equipment joint and the connecting head together form an air outlet shell, which is connected to the external mask through the equipment joint; the air duct joint has a step structure, and the front end is directly connected to the air outlet end of the pipe body and fixed by a clamp, the front end of the connecting head is penetrated by the rear end of the equipment joint and extends out of the front end of the equipment joint, the radiator is inserted into the inner hole of the connecting head by the front end of the connecting head, and a spring is arranged on the fixing plate; the front end of the heating element and the temperature sensor are placed in the cavity at the rear end of the air duct joint, and are respectively connected to the electrical connector through cables in the pipe body; the front end of the connecting head and the rear end of the air duct joint are tightened by threads and fixed with bolts.

[0010] Further, the first connecting bolt and the second connecting bolt are different.

[0011] Furthermore, a heat dissipation fin structure is arranged on the outer periphery of the radiator.

[0012] Furthermore, the first thermal insulation pad and the second thermal insulation pad are different.

[0013] Furthermore, the device connector is a mask connector.

[0014] (III) Beneficial effects

[0015] The present invention proposes an air duct of an air supply device with heating and self-closing functions, including an air inlet, a tube body and an air outlet. The air inlet includes an air inlet shell, an electrical connector, a first connecting bolt and a second connecting bolt. The tube body contains a control and feedback cable. The air outlet includes an air duct joint, a mask joint, a connector, a radiator, a heating element, a temperature sensor, a first thermal insulation pad, a second thermal insulation pad, a fixing plate, a spring and a heating printed circuit board. The end structure of the air duct of the present invention can open and close automatically according to whether a mask or device is connected at the interface using a spring. At the same time, a heating element and a temperature sensor are integrated at the interface, and the heating amplitude can be adjusted by controlling the power of the heating element by the front-end controller, so as to ensure that the airflow with suitable temperature is output to the people or equipment in the vehicle under different environments.

[0016] The beneficial effects specifically include:

[0017] 1. The air circuit can be automatically opened or closed according to the connection status at the air outlet, and the self-closing function of the pipeline can be realized through spring control.

[0018] 2. The structure is simple, the parts move reliably, and the internal components are all protected.

[0019] 3. The temperature data at the air outlet can be accurately fed back through the electronic control, and the temperature at the air outlet can be controlled efficiently and quickly in combination with the controller.

[0020] 4. Use a heating solution that is closest to the mask or device, with less energy loss.

[0021] 5. Integrated heating and self-closing components save space and weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the air guide pipe of the air supply device according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation state of the air inlet in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the decomposition of the air inlet structure in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the air outlet installation state in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the decomposition of the air outlet structure in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of a radiator in an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the air duct of the air supply device in an open state according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the closed state of the air duct of the air supply device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0031] This embodiment provides an air supply device air duct with heating and self-closing functions, and its overall structure is as follows: Figure 1 As shown, it is mainly composed of an air inlet 1, a tube body 2 and an air outlet 3.

[0032] The structure of the air inlet 1 is as follows Figure 2 and 3As shown, it includes an air inlet shell 1-1, an electrical connector 1-2, a first connecting bolt 1-3 and a second connecting bolt 1-4. Among them, the air inlet shell 1-1 is the main structure of the air inlet 1, and the rear end of the air inlet shell 1-1 is directly connected to the air inlet end of the tube body 2 and fixed by a clamp. The electrical connector 1-2 is fixed to the inner side of the front end of the air inlet shell 1-1 by the first connecting bolt 1-3, and the interface of the electrical connector 1-2 faces forward, and the wiring pins face the direction of the tube body 2. The second connecting bolt 1-4 is used to fix the air inlet shell 1-1 to the front-end device, so as to realize the connection between the air inlet 1 as a whole and the front-end device.

[0033] The tube body 2 contains control and feedback cables. During installation, first connect the air inlet 1 and the tube body 2 through the air inlet shell 1-1 and fix them with a clamp, then connect one end of the cable to the connection pin of the electrical connector 1-2, and finally insert the cable into the tube body 2 and lead it out from the air outlet.

[0034] The structure of the air outlet 3 is as follows Figure 4 and 5 As shown, it includes an air duct joint 3-1, a mask joint 3-2, a connector 3-3, a radiator 3-4, a heating element 3-5, a temperature sensor 3-6, a first thermal insulation rubber pad 3-7, a second thermal insulation rubber pad 3-8, a fixing plate 3-9, a spring 3-10 and a heating printed circuit board 3-11.

[0035] The radiator 3-4, the heating element 3-5, the temperature sensor 3-6, the first thermal insulation pad 3-7, the second thermal insulation pad 3-8, the fixing plate 3-9 and the heating printed circuit board 3-11 together form the inner core. Among them, the heating printed circuit board 3-11 is fixed to the fixing plate 3-9 by connecting bolts, and the fixing plate 3-9 is connected to the front end of the radiator 3-4 by connecting bolts. The heating element 3-5 and the temperature sensor 3-6 are installed on the heating printed circuit board 3-11, and the rear ends of the heating element 3-5 and the temperature sensor 3-6 are inserted into the radiator 3-4 according to the opening on the front end surface of the radiator 3-4. Figure 6 As shown, the periphery of the radiator 3-4 is provided with a heat dissipation fin structure, and the gas can flow through the periphery and fully absorb the heat. A first heat-insulating rubber pad 3-7 is provided between the front end surface of the radiator 3-4 and the fixing plate 3-9, and a second heat-insulating rubber pad 3-8 is installed at the rear end of the radiator 3-4 through connecting bolts.

[0036] The air duct joint 3-1, the mask joint 3-2 and the connector 3-3 together form the air outlet shell, which is connected to the external mask through the mask joint 3-2. The air duct joint 3-1 has a step structure, and the front end is directly connected to the air outlet end of the tube body 2 and fixed by a clamp. The front end of the connector 3-3 is penetrated by the rear end of the mask joint 3-2 and extends out of the front end of the mask joint 3-2, the radiator 3-4 is inserted into the inner hole of the connector 3-3 by the front end of the connector 3-3, and a spring 3-10 is provided on the fixing plate 3-9. The front ends of the heating element 3-5 and the temperature sensor 3-6 are placed in the rear end cavity of the air duct joint 3-1, and are respectively connected to the electrical connector 1-2 through the cables in the tube body 2. The front end of the connector 3-3 is screwed with the rear end of the air duct joint 3-1 by threads and fixed by M3 bolts. During the installation process of the air outlet 3, it is necessary to ensure that the inner core moves smoothly, and the air outlet shell and the inner core and the spring remain coaxial.

[0037] Taking the connection of a gas mask as an example, the working principle of the air duct of the air supply device of the present invention is explained.

[0038] When the FMJ09 gas mask (standard filter tank) is installed normally, Figure 7 As shown, under the action of the inward thrust, the inner core approaches the inner step end face of the air pipe joint 3-1 and compresses the spring 3-10, at which time the air inlet channel on the radiator 3-4 is opened; when the mask is removed, the inner core moves away from the inner step end face of the air pipe joint 3-1 under the action of the spring 3-10, and the first thermal insulation pad 3-7 is tightly attached to the end face of the connector 3-3, at which time the airflow cannot pass. Figure 8 As shown, the air outlet is closed. This action can realize the synchronous closing of the airway tube when the mask is removed; at the same time, feedback is obtained in the device connected to the air inlet 1 at one end of the airway tube (the device can detect the change of air pressure in the tube body) to turn off the heating and adjust the flow. An aviation plug is provided on the electrical connector 1-1 of the air inlet 1, which can be connected to a system controller with processing capabilities. The heat generated by the heating element 3-5 is evenly transferred to the surrounding air through the radiator 3-4 to achieve air heating capability. The temperature sensor 3-6 can send temperature feedback values ​​to the system controller in real time to realize the temperature regulation function. At the same time, due to the direct heating using the interface close to the mask side, the thermal energy utilization rate is relatively high. After the above two functions are integrated, they take up little space, close the feedback quickly, heat up quickly, and heat the air evenly.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An air supply device air duct with heating and self-closing functions, characterized in that: The air supply device air guide pipe includes an air inlet, a pipe body and an air outlet; wherein, The air inlet comprises an air inlet shell, an electrical connector, a first connecting bolt and a second connecting bolt; wherein the air inlet shell is the main structure of the air inlet, the rear end of the air inlet shell is directly connected to the air inlet end of the tube body and is fixed by a clamp; the electrical connector is fixed to the inner side of the front end of the air inlet shell by the first connecting bolt, the interface of the electrical connector faces forward, and the connection pins face the direction of the tube body; the second connecting bolt is used to fix the air inlet shell to the front-end device; the first connecting bolt and the second connecting bolt are different; The tube body contains a control and feedback cable, one end of the cable is connected to the connection pin of the electrical connector, and the other end penetrates the tube body and is led out from the air outlet; The air outlet includes an air duct joint, an equipment joint, a connector, a radiator, a heating element, a temperature sensor, a first thermal insulation pad, a second thermal insulation pad, a fixing plate, a spring and a heating printed circuit board; wherein the radiator, the heating element, the temperature sensor, the first thermal insulation pad, the second thermal insulation pad, the fixing plate and the heating printed circuit board together constitute an inner core; the heating printed circuit board is fixed to the fixing plate by connecting bolts, and the fixing plate is connected to the front end of the radiator by connecting bolts; the heating element and the temperature sensor are installed on the heating printed circuit board, and the rear ends of the heating element and the temperature sensor are inserted into the radiator according to the opening on the front end surface of the radiator; a first thermal insulation pad, a second thermal insulation pad and a fixing plate are arranged between the front end surface of the radiator and the fixing plate. The pad is installed at the rear end of the radiator through connecting bolts, and the first thermal insulation rubber pad is different from the second thermal insulation rubber pad; the air duct joint, the equipment joint and the connecting head together constitute the air outlet shell, which is connected to the external mask through the equipment joint; the air duct joint has a step structure, and the front end is directly connected to the air outlet end of the pipe body and fixed by a clamp, the front end of the connecting head is inserted into the rear end of the equipment joint and extends out of the front end of the equipment joint, the radiator is inserted into the inner hole of the connecting head by the front end of the connecting head, and a spring is arranged on the fixing plate; the front end of the heating element and the temperature sensor are placed in the cavity at the rear end of the air duct joint, and are respectively connected to the electrical connector through cables in the pipe body; the front end of the connecting head and the rear end of the air duct joint are tightened by threads and fixed with bolts.

2. The air duct of the air supply device according to claim 1, characterized in that: A heat dissipation fin structure is arranged on the outer periphery of the heat sink.

3. The air duct of the air supply device according to claim 1, characterized in that: The device connector is a mask connector.

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