A multi-path inflator and inflator control method

Abstract

The application relates to the technical field of inflating devices, in particular to a multi-path inflating device and an inflating control method. The multi-path inflating device comprises a frame body, an inflator arranged in the frame body and a lithium battery for supplying power to the inflator, a partition support structure is arranged in the frame body, and the partition support structure divides the frame body into an upper half frame and a lower half frame; the lithium battery is arranged in the lower half frame, the inflator is arranged in the upper half frame, and the partition support structure supports the inflator; the inflator comprises a fan, a flow divider and an air outlet joint; the fan comprises an air outlet pipe; the flow divider comprises a total joint connected with the air outlet pipe and a plurality of shunt pipes connected with the total joint; and each shunt pipe is connected with one air outlet joint. The resistance of air entering the shunt pipes from the total joint is relatively small, the energy consumption of the fan is reduced, the energy consumption of the lithium battery per unit time is reduced, and the endurance of the lithium battery is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of inflation equipment, and in particular to a multi-channel inflation device and an inflation control method. Background Art

[0002] Inflating uniquely shaped air bags to create inflatable structures is quite common, such as inflatable castles and tents used as amusement rides or landscape features. These structures utilize the principles of structural mechanics to create a framework, leveraging the pressure characteristics of gas to inflate the air bags into a rigid column. This organic combination supports the castle or tent's frame. These inflatable structures typically require continuous inflation from an air pump or fan to maintain a stable and reliable shape. While some inflatable structures with well-sealed air bags may not leak significantly for a period of time, some leakage can occur over time, leading to insufficient pressure within the bag. While continuous inflation is not necessary, they still need to be connected to the pump and fan to maintain pressure when needed. Inflatable tents are commonly used outdoors, such as during national disaster relief operations and by campers. In these situations, an external power source is often unavailable, requiring a pump or fan with a portable power bank to provide power.

[0003] For example, a portable electric air pump disclosed in the patent with publication number CN213392549U includes a shell, in which an inflatable movement, a control circuit board, and a lithium battery are arranged. The lithium battery powers the inflatable movement through the control circuit board; it also includes an air pipe, one end of which is an air inlet end that penetrates into the shell to be connected to the output end of the inflatable movement, and the other end of the air pipe is an exhaust end placed outside the shell for connection of inflatable products. A storage slot for plugging and unplugging the exhaust end of the air supply pipe is provided on the shell; the shell is also provided with a key module connected to the control circuit board to realize the operation control of the inflatable movement. This patent uses lithium batteries to provide power for inflation and is easy to carry; however, my country has a vast territory, with both plains and plateaus. The temperature and air pressure in the plains generally do not affect the performance of the lithium battery, while the low temperature in the plateau will cause the battery capacity of the lithium battery to decrease during charging and discharging, resulting in a reduction in the total time the lithium battery can provide power for the air pump or fan; therefore, the same air pump or fan with a lithium battery has a much lower battery life in a plateau environment than in a plain environment, which is difficult to meet usage needs. Users need to carry more lithium batteries for replacement to maintain battery life, which is inconvenient and increases costs. Summary of the Invention

[0004] The present application is improved in view of the problems existing in the prior art, that is, the present application aims to provide a multi-path inflator, comprising a frame, an inflator and a lithium battery for powering the inflator, wherein a partition support structure is arranged in the frame to divide the frame into an upper half frame and a lower half frame, the lithium battery is arranged in the lower half frame, the inflator is arranged in the upper half frame and the partition support structure supports the inflator, the inflator comprises a fan, a flow divider and air outlet joints, the fan comprises an air outlet pipe, the flow divider comprises a total joint connected to the air outlet pipe and a plurality of flow divider pipes connected to the total joint, and each flow divider pipe is connected to an air outlet joint.

[0005] As a preferred embodiment of the present application, one side of the total joint is connected to the air outlet pipe and the opposite side is connected to the flow divider pipes, and the inner cavity of the total joint is a spherical chamber.

[0006] As a preferred embodiment of the present application, the flow divider pipes are arranged in a circumferential array around the central axis of the air outlet pipe and jointly form a conical structure with a conical top near one end of the total joint, and all the air outlet joints are also arranged in a circumferential array around the central axis of the air outlet pipe.

[0007] As a preferred embodiment of the present application, it further comprises an ambient air pressure sensor, air bag pressure sensors and a controller, each air outlet joint is provided with an electromagnetic valve connected to one air bag pressure sensor by wires, the controller has a control module, the controller can receive the detection data of the ambient air pressure sensor and the air bag pressure sensors and control the opening and closing of the electromagnetic valves and the fan through the control module, when the air pressure data of the air bag pressure sensor is lower than the air pressure data of the ambient air pressure sensor and the difference is lower than a lower threshold, the control module controls the fan (31) to start and controls the corresponding electromagnetic valve to open for inflation, when the difference between the air pressure data of the air bag pressure sensor and the air pressure data of the ambient air pressure sensor reaches a set upper threshold, the control module controls the corresponding electromagnetic valve to close, and when all the electromagnetic valves are closed, the controller controls the fan to stop running.

[0008] As a preferred embodiment of the present application, the lower half frame is closed by lower sealing plates arranged on the circumferential four sides and the upper and lower sides, the inner side of the lower sealing plate is covered with a thermal insulation layer, the upper half frame is closed by upper sealing plates arranged on the circumferential four sides and the upper side, at least one of the upper sealing plates is provided with an air inlet, and the inner side of the upper sealing plate is covered with a thermal insulation layer.

[0009] As a preferred embodiment of the present invention, the partition support structure includes a partition layer and a support layer fixed above the partition layer, the partition layer divides the frame into the upper half frame and the lower half frame, the support layer supports the inflator and separates the inflator from the partition layer; the partition layer includes four partition rods forming a square along the circumferential direction, and the lower packaging plate above the lower half frame is fixedly connected to the partition rods through four sides and completely blocks the square space surrounded by the four partition rods.

[0010] As a preferred embodiment of the present invention, the support layer includes two support rods mounted side by side on the partition rod and a support plate mounted on the support rod, the inflator is mounted on the support plate, and an insulation pad is provided at the connection between the support rod and the partition rod.

[0011] As a preferred embodiment of the present invention, it further includes a heat conduction structure, which includes a heat dissipation plate located in the lower half frame and suspended above the lithium battery, and a heat conduction rod extending from the heat dissipation plate to contact the fan, and the support plate and the lower packaging plate on the upper side of the lower half frame are both provided with through holes for the heat conduction rod to pass through.

[0012] As a preferred embodiment of the present invention, an auxiliary air duct with a solenoid valve is further provided in the upper half frame, which is located on the side of the fan away from the air inlet. One end of the auxiliary air duct is connected to the fan and the other end extends into the lower half frame. The support plate and the lower packaging plate on the upper side of the lower half frame are both provided with through holes for the auxiliary air duct to pass through. After the fan is started, air can be inflated into the lower half frame through the auxiliary air duct. A side hole is provided on the part of the auxiliary air duct located in the upper half frame.

[0013] A method for controlling inflation of a multi-channel inflation device, comprising the following steps:

[0014] S01: connecting the air outlet connector (33) to different air bags through pipelines;

[0015] S02: Turn on the fan (31) and the solenoid valve. The fan (31) blows air into the main joint (321) through the air outlet pipe (311). The air in the main joint (321) enters each branch pipe (322) to achieve diversion, and then is discharged from each air outlet joint (33) into each air bag to achieve multi-path inflation.

[0016] S03: The ambient air pressure sensor detects the ambient air pressure. Each airbag air pressure sensor detects the air pressure in one airbag. When the difference between the detection data of the airbag air pressure sensor and the detection data of the ambient air pressure sensor reaches a preset upper limit threshold, the controller controls the corresponding solenoid valve to close.

[0017] S04: When all the solenoid valves are closed, the controller controls the fan (31) to stop running;

[0018] S05: When the difference between the detection data of one or more airbag pressure sensors and the detection data of the ambient pressure sensor is lower than a preset lower limit threshold, the controller controls the solenoid valves connected to these airbag pressure sensors to open and controls the blower to start to replenish air to these airbags;

[0019] S06: When the difference between the detection data of the airbag pressure sensor corresponding to one or more airbags being inflated and the detection data of the ambient air pressure sensor reaches a preset upper limit threshold, the controller controls the corresponding solenoid valve to close, and stops inflating these airbags;

[0020] S07: When all the solenoid valves are closed, the controller controls the fan (31) to stop running.

[0021] Beneficial effects:

[0022] The main joint is directly connected to the air outlet pipe of the fan, and the resistance of air entering the main joint from the air outlet pipe is relatively small. The main joint is directly connected to the branch pipe, and the resistance of air entering the branch pipe from the main joint is also relatively small, which reduces the energy consumption of the fan, thereby reducing the energy consumption of the lithium battery per unit time and improving the battery life of the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the multi-channel inflation device;

[0024] Figure 2 is a schematic diagram of the partition support structure;

[0025] Figure 3 is a schematic diagram of the inflator;

[0026] Figure 4 Schematic diagram of the heat conduction structure and auxiliary air duct;

[0027] Figure 5 Schematic diagram of the diverter described in Example 2. DETAILED DESCRIPTION

[0028] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0029] Example 1:

[0030] The present invention provides a multi-channel inflation device, comprising a frame 1, an inflator 3 arranged in the frame 1, and a lithium battery 2 for powering the inflator 3. A partition support structure 4 is provided in the frame 1, and the partition support structure 4 divides the frame 1 into an upper half frame 12 and a lower half frame 11; the lithium battery 2 is arranged in the lower half frame 11, and the inflator 3 is arranged in the upper half frame 12. The partition support structure 4 supports the inflator 3. The four circumferential sides and the upper and lower sides of the lower half frame 11 are all provided with a lower packaging plate 13 for sealing, and the inner side of the lower packaging plate 13 is covered with an insulation layer. The inflator 3 and the lithium battery 2 are separately arranged in the frame 1 and do not interfere with each other. The lower half frame 11 is specifically used to accommodate the lithium battery 2. The space is large, and a larger lithium battery 2 can be selected to obtain a higher storage capacity, thereby improving the endurance of the lithium battery 2. The frame 1 is in the shape of a rectangular parallelepiped, and the upper half frame 12 and the lower half frame 11 are also in the shape of a rectangular parallelepiped. The six sides of the lower half frame 11 are sealed with a lower packaging plate 13. At the same time, the inner side of the lower packaging plate 13 is covered with an insulation layer, so that the lithium battery 2 is in a sealed and heat-insulating space, reducing the impact of the external low temperature environment on the internal temperature of the lower half frame 11. It can also lock the heat generated by the lithium battery 2 during use in the lower half frame 11, and try to increase the temperature inside the lower half frame 11. In this way, a closed space with a temperature higher than the external environment is formed inside the lower half frame 11, minimizing the impact of the external low temperature environment on the endurance of the lithium battery 2 and meeting the use requirements. The insulation layer is made of commonly used insulation materials such as insulation cotton, rock wool, and glass wool.

[0031] In this embodiment, the partition support structure 4 includes a partition layer 41 and a support layer 42 fixed above the partition layer 41. The partition layer 41 divides the frame body 1 into the upper half frame 12 and the lower half frame 11. The partition layer 41 serves as a part of both the lower half frame 11 and the upper half frame 12. The support layer 42 supports the inflator 3 and separates the inflator 3 from the partition layer 41. The heat conduction efficiency of heat in solids is relatively high. The temperature in the internal space of the lower half frame 11 is higher than the temperature of the external environment and the temperature inside the upper half frame 12. Despite the presence of the insulation layer, heat will still be transferred to the outside through the lower packaging plate 13 and to the upper half frame 12 through the insulation layer 41. However, the insulation layer reduces the rate of heat loss. If the inflator 3 contacts the lower packaging plate 13 or the insulation layer 41 on the upper side of the lower half frame 11, the rate of heat loss on the lower packaging plate 13 will be accelerated. Therefore, the support layer 42 in this embodiment separates the inflator 3 from the insulation layer 41, so that the components on the inflator 3 will not directly contact the insulation layer 41 and the lower packaging plate 13 in the lower half frame 11. There is a suspended portion between the lower half frame 11 and the inflator 3, which reduces the rate of heat loss in the lower half frame 11 and improves the insulation performance of the lower half frame 11, thereby ensuring the endurance of the lithium battery 2.

[0032] Specifically, the partition layer 41 includes four partition rods 411 that form a square along the circumferential direction, and the lower packaging plate 13 above the lower half frame 11 is fixedly connected to the partition rods 411 through four side edges and completely blocks the square space surrounded by the four partition rods 411; the partition layer 41 is composed of only four partition rods 411, and a large hollow square space is formed in the middle, which not only reduces the contact area between the physical structure of the partition layer 41 and the lower packaging plate 13 on the upper side of the lower half frame 11, reduces the heat dissipated by the lower packaging plate 13 through the partition rods 411, but also reduces the material cost, reduces the quality, and improves the portability of the inflation device. The support layer 42 includes two support rods 421 mounted side by side on the partition rod 411 and a support plate 422 mounted on the support rod 421. The inflator 3 is installed on the support plate 422. A heat insulation pad is provided at the connection between the support rod 421 and the partition rod 411. The heat in the lower half frame 11 is transferred through the partition rod 411, which is a faster dissipation path. The heat dissipation rate on this path is effectively reduced by providing a heat insulation pad between the partition rod 411 and the support rod 421. Moreover, the contact area between the support rod 421 and the partition rod 411 is itself small, which reduces the heat loss. However, it is difficult to meet the installation requirements of the inflator 3 by relying solely on two support rods 421. Therefore, in this embodiment, the support plate 422 is a component fixed to the support rod 421 and has a larger width for installing the inflator 3. In this way, the support layer 42 not only reduces the heat transfer between the support layer 42 and the partition layer 41, but also meets the requirements of stable installation of the inflator 3. The thermal insulation pad can be made of traditional materials such as glass fiber, asbestos, rock wool, etc., or can be made of new materials such as aerogel felt, vacuum board, etc.

[0033] The temperature inside the lower half frame 11 is higher than the temperature of the external environment and the temperature inside the upper half frame 12. Therefore, the heat in the lower half frame 11 is mainly dissipated into the external environment and the upper half frame 12. The external environment cannot be controlled, but the absorption of heat from the lower half frame 11 by the upper half frame 12 can be further reduced. Therefore, as a further improvement, this embodiment preferably provides an upper encapsulation plate 14 on all four circumferential sides and the upper side of the upper half frame 12 for sealing. At least one of the upper encapsulation plates 14 is provided with an air inlet, and the inner side of the upper encapsulation plate 14 is covered with an insulation layer. The inflator 3 also generates heat during operation, which improves the thermal insulation performance of the upper half frame 12 itself, can lock the heat in the upper half frame 12, reduce the temperature difference between the upper half frame 12 and the lower half frame 11, further reduce the heat loss in the lower half frame 11, and improve the thermal insulation performance of the lower half frame 11, thereby ensuring the endurance of the lithium battery 2.

[0034] When the upper half frame 12 is capable of heat preservation, the temperature in the upper half frame 12 may even be higher than that in the lower half frame 11. Increasing the temperature in the lower half frame 11 is the most fundamental, so this embodiment preferably also includes a heat conduction structure 5. The inflator 3 includes a fan 31. One side of the heat conduction structure 5 contacts the fan 31 and the other side extends into the lower half frame 11. The heat conduction structure 5 can transfer heat from the fan 31 to the lower half frame 11, thereby increasing the heat in the lower half frame 11 and improving the heat preservation effect of the lower half frame 11. Specifically, the heat conduction structure 5 includes a heat sink 52 located within the lower frame 11 and suspended above the lithium battery 2, and a heat-conducting rod 51 extending from the heat sink 52 to contact the fan 31. Both the support plate 422 and the lower packaging plate 13 on the upper side of the lower frame 11 are provided with through-holes for the heat-conducting rod 51 to pass through. Heat generated by the fan 31 is transferred to the heat sink 52 via the heat-conducting rod 51, and then dissipated from the heat sink 52 to the lower frame 11. The heat-conducting rod 51 can be made of a material such as thermally conductive, insulating, elastic rubber, which not only has excellent thermal conductivity but also provides elastic cushioning properties. The heat-conducting rod 51 directly contacts the fan 31, which vibrates during operation, providing a buffering effect.

[0035] Furthermore, it is preferred that an auxiliary air duct 6 with a solenoid valve is provided in the upper half frame 12 and is located on the side of the fan 31 away from the air inlet. One end of the auxiliary air duct 6 is connected to the fan 31 and the other end extends into the lower half frame 11. The support plate 422 and the lower packaging plate 13 on the upper side of the lower half frame 11 are both provided with through holes for the auxiliary air duct 6 to pass through. After the fan 31 is started, air can be inflated into the lower half frame 11 through the auxiliary air duct 6. A side hole 61 is provided on the part of the auxiliary air duct 6 located in the upper half frame 12; the solenoid valve is opened to allow the fan 31 to inflate air into the lower half frame 11 through the auxiliary air duct 6. At this time, the air flow rate in the auxiliary air duct 6 is faster, and the air pressure near the inner wall of the air duct is lower than the air pressure outside the tube. The hot air in the upper half frame 12 will enter the auxiliary air duct 6 through the side hole 61 and finally enter the lower half frame 11, transferring the heat in the upper half frame 12 to the lower half frame 11. In addition, the low air pressure in the plateau area increases the probability of the lithium battery 2 bulging, so inflating the lower half frame 11 can increase the air pressure in the lower half frame 11 and reduce the probability of the lithium battery 2 bulging.

[0036] Furthermore, it is preferred that a bracket is fixed to the outside of the frame 1, and the bracket allows the frame 1 to be suspended in the air. When in use, the inflatable device is placed on the ground through the bracket, and the frame 1 is not in direct contact with the ground, further reducing the heat loss of the lower half frame 11. Inflatable buildings such as inflatable tents usually have multiple air chambers with independent air bags, and each air bag needs to be inflated separately. The multi-way inflation device of this embodiment can achieve multi-way inflation. The inflator 3 also includes a diverter 32 connected to the fan 31. The diverter 32 is provided with multiple air outlet connectors 33. Each air outlet connector 33 is connected to the air bag through a pipeline to achieve multi-way inflation. The diverter 32 is a rectangle surrounded by the ends of the pipelines. One side of the diverter 32 is connected to the fan 31, and the other side is connected to the air outlet connector 33.

[0037] Example 2:

[0038] The extension of the battery life of the lithium battery 2 is also related to the operating mode of the fan 31 and the operating resistance of the fan 31. If the fan 31 runs continuously, the lithium battery 2 needs to continuously supply power to it. When the total battery life of the lithium battery 2 is determined, the time the inflatable device supports the use of the inflatable tent depends entirely on the battery life of the lithium battery 2, and the time it can support the use of the inflatable tent is relatively short. If the resistance encountered by the fan 31 when exhausting air is large, a portion of the operating power needs to be allocated to overcoming the resistance, but the operating power for exhausting air must also be guaranteed. This results in a large total operating power, high energy consumption of the lithium battery 2, and reduced battery life. Therefore, the present invention makes improvements based on the above two perspectives on the basis of the first embodiment and proposes a second embodiment.

[0039] The present invention provides a multi-channel inflation device, comprising a frame 1, an inflator 3 arranged in the frame 1, and a lithium battery 2 for powering the inflator 3. A partition support structure 4 is provided in the frame 1, and the partition support structure 4 divides the frame 1 into an upper half frame 12 and a lower half frame 11; the lithium battery 2 is arranged in the lower half frame 11, and the inflator 3 is arranged in the upper half frame 12, and the partition support structure 4 supports the inflator 3; the inflator 3 includes a fan 31, a diverter 32 and an air outlet connector 33, the fan 31 includes an air outlet pipe 311, the diverter 32 includes a main connector 321 connected to the air outlet pipe 311 and several diverter pipes 322 connected to the main connector 321, and each of the diverter pipes 322 is connected to an air outlet connector 33. The fan 31 discharges air into the main joint 321 of the diverter 32, which is a shared total space. The air in the main joint 321 is diverted into each diverter pipe 322 and then discharged through the air outlet joint 33, thereby realizing multi-path inflation. The main joint 321 is directly connected to the air outlet pipe 311 of the fan 31. The resistance of air entering the main joint 321 from the air outlet pipe 311 is relatively small. The main joint 321 is directly connected to the diverter pipe 322. The resistance of air entering the diverter pipe 322 from the main joint 321 is also relatively small, thereby reducing the energy consumption of the fan 31, thereby reducing the energy consumption of the lithium battery 2 per unit time, and improving the endurance of the lithium battery 2.

[0040] Furthermore, it is preferred that one side of the main joint 321 is connected to the outlet pipe 311 and the opposite side is connected to the diversion pipe 322. The arrangement order of the outlet pipe 311, the main joint 321 and the diversion pipe 322 is consistent with the direction of air flow, thereby reducing air resistance. The inner cavity of the main joint 321 is a spherical chamber. The air entering the main joint 321 travels along the inner wall of the spherical chamber, taking into account the entrance of each diversion pipe 322, thereby improving the efficiency of air entering the diversion pipe 322. At the same time, the spherical chamber also reduces the resistance of air movement. Furthermore, it is preferred that the diversion pipes 322 are arranged in a circular array around the central axis of the outlet pipe 311 and together form a conical structure with a cone top at one end near the main joint 321. All the outlet joints 33 are also arranged in a circular array around the central axis of the outlet pipe 311. The efficiency of air discharged from the main joint 321 to the diversion pipe 322 is roughly consistent, thereby ensuring the balance of multi-path inflation.

[0041] The multi-channel inflation device of this embodiment also includes an ambient air pressure sensor, an airbag air pressure sensor and a controller. Each of the air outlet connectors 33 is provided with a solenoid valve connected to one of the airbag air pressure sensor wires respectively; the controller has a control module inside, and the controller can receive the detection data of the ambient air pressure sensor and the airbag air pressure sensor and control the opening and closing of the solenoid valve and the fan 31 after judgment by the control module; when the air pressure data of the airbag air pressure sensor is lower than the air pressure data of the ambient air pressure sensor, and the difference is lower than the lower limit threshold, the control module controls the fan 31 to start and controls the corresponding solenoid valve to open for inflation; when the difference between the air pressure data of the airbag air pressure sensor and the air pressure data of the ambient air pressure sensor reaches the set upper limit threshold, the control module controls the corresponding solenoid valve to close; when all the solenoid valves are closed, the controller controls the fan 31 to stop running. In this way, the fan 31 can be operated intermittently. It only runs continuously during the first inflation. When the inflatable tent is formed and stable for use, the solenoid valve is closed, the fan 31 is turned off, and the inflatable tent is no longer inflated. The lithium battery 2 also does not need to power the fan 31. During the period when the inflatable tent can be used normally, the lithium battery 2 only needs to power the ambient air pressure sensor, the airbag air pressure sensor, and the controller. The power consumption is very small. As long as the sealing of the inflatable tent itself is good enough, the length of this period is long. It is not until the internal air pressure of the inflatable tent is too low due to leakage that the fan 31 is restarted to replenish air. Therefore, the fan 31 runs intermittently, and the lithium battery 2 also outputs high power intermittently. Most of the time, the lithium battery 2 is in a low-power output state. Although the battery life of the lithium battery 2 itself is fixed, the total time that can support the use of the inflatable device is greatly extended to meet actual needs.

[0042] On the other hand, this embodiment also increases the battery life of the lithium battery 2 by improving its thermal insulation. The specific implementation method directly adopts the implementation method of Example 1. The lower half frame 11 is provided with a lower sealing plate 13 on all four circumferential sides and the upper and lower sides for sealing. The inner side of the lower sealing plate 13 is covered with a thermal insulation layer. The upper half frame 12 is provided with an upper sealing plate 14 on all four circumferential sides and the upper side for sealing. At least one of the upper sealing plates 14 has an air inlet, and the inner side of the upper sealing plate 14 is covered with a thermal insulation layer. The partition support structure 4 includes a partition layer 41 and a support layer 42 fixed above the partition layer 41. The partition layer 41 divides the frame 1 into the upper half frame 12 and the lower half frame 11. The support layer 42 supports the inflator 3 and separates the inflator 3 from the partition layer 41. The partition layer 41 includes four partition rods 411 that form a square along the circumference. The lower packaging plate 13 above the lower half frame 11 is fixedly connected to the partition rods 411 through four sides and completely blocks the square space surrounded by the four partition rods 411. The support layer 42 includes two support rods 421 mounted side by side on the partition rods 411 and a support plate 422 mounted on the support rods 421. The inflator 3 is installed on the support plate 422. A heat insulation pad is provided between the support rods 421 and the partition rods 411 at the connection between the two. The upper frame 12 further includes a heat conduction structure 5, comprising a heat sink 52 located within the lower frame 11 and suspended above the lithium battery 2, and a heat conducting rod 51 extending from the heat sink 52 to contact the fan 31. The support plate 422 and the lower packaging plate 13 on the upper side of the lower frame 11 both have through-holes for the heat conducting rod 51 to pass through. The upper frame 12 also includes an auxiliary air duct 6 with a solenoid valve, located on the side of the fan 31 facing away from the air inlet. One end of the auxiliary air duct 6 is connected to the fan 31, while the other end extends into the lower frame 11. Both the support plate 422 and the lower packaging plate 13 on the upper side of the lower frame 11 have through-holes for the auxiliary air duct 6 to pass through. When the fan 31 is activated, air can be pumped into the lower frame 11 through the auxiliary air duct 6. The portion of the auxiliary air duct 6 located within the upper frame 12 is provided with a side hole 61.

[0043] The present invention provides an inflation control method for a multi-channel inflation device, comprising the following steps:

[0044] S01: Connect the air outlet connector 33 to different air bags through pipelines;

[0045] S02: Turn on the fan 31 and the solenoid valve. The fan 31 blows air into the main joint 321 through the air outlet pipe 311. The air in the main joint 321 enters each branch pipe 322 for diversion, and then is discharged from each air outlet joint 33 into each airbag to achieve multi-channel inflation.

[0046] S03: The ambient air pressure sensor detects the ambient air pressure. Each airbag air pressure sensor detects the air pressure in one airbag. When the difference between the detection data of the airbag air pressure sensor and the detection data of the ambient air pressure sensor reaches a preset upper limit threshold, the controller controls the corresponding solenoid valve to close.

[0047] S04: When all the solenoid valves are closed, the controller controls the fan 31 to stop running;

[0048] S05: When the difference between the detection data of one or more airbag pressure sensors and the detection data of the ambient pressure sensor is lower than a preset lower limit threshold, the controller controls the solenoid valves connected to these airbag pressure sensors to open and controls the blower 31 to start, so as to replenish air to these airbags;

[0049] S06: When the difference between the detection data of the airbag pressure sensor corresponding to one or more airbags being inflated and the detection data of the ambient air pressure sensor reaches a preset upper limit threshold, the controller controls the corresponding solenoid valve to close, and stops inflating these airbags;

[0050] S07: When all the solenoid valves are closed, the controller controls the fan 31 to stop running.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A multi-channel inflation device, characterized in that: The invention comprises a frame (1), an inflator (3) arranged in the frame (1), and a lithium battery (2) for supplying power to the inflator (3); a partition support structure (4) is arranged in the frame (1), and the partition support structure (4) divides the frame (1) into an upper half frame (12) and a lower half frame (11); the lithium battery (2) is arranged in the lower half frame (11), the inflator (3) is arranged in the upper half frame (12), and the partition support structure (4) is arranged in the lower half frame (11). (4) supporting the inflator (3); the inflator (3) comprises a fan (31), a diverter (32) and an air outlet connector (33); the fan (31) comprises an air outlet pipe (311); the diverter (32) comprises a main connector (321) connected to the air outlet pipe (311) and a plurality of diverter pipes (322) connected to the main connector (321); each of the diverter pipes (322) is connected to one of the air outlet connectors (33); The four circumferential side surfaces and the upper and lower side surfaces of the lower half frame (11) are all provided with lower packaging plates (13) for sealing, and the inner side surface of the lower packaging plate (13) is covered with a heat-insulating layer; the four circumferential side surfaces and the upper side surface of the upper half frame (12) are all provided with upper packaging plates (14) for sealing, and at least one of the upper packaging plates (14) is provided with an air inlet, and the inner side of the upper packaging plate (14) is covered with a heat-insulating layer; The heat conduction structure (5) further comprises a heat conduction structure (5), the heat conduction structure (5) comprising a heat dissipation plate (52) located in the lower half frame (11) and suspended above the lithium battery (2), and a heat conduction rod (51) extending from the heat dissipation plate (52) to contact the fan (31).

2. A multi-channel inflation device according to claim 1, characterized in that: One side of the main joint (321) is connected to the air outlet pipe (311), while the opposite side is connected to the diversion pipe (322). The inner cavity of the main joint (321) is a spherical chamber.

3. A multi-channel inflation device according to claim 2, characterized in that: The diversion pipes (322) are arranged in a circular array around the central axis of the air outlet pipe (311) and together form a conical structure with a cone top at one end close to the main joint (321). All the air outlet joints (33) are also arranged in a circular array around the central axis of the air outlet pipe (311).

4. A multi-channel inflation device according to claim 3, characterized in that: It also includes an ambient air pressure sensor, an airbag air pressure sensor and a controller, and each of the air outlet connectors (33) is provided with a solenoid valve connected to a wire of the airbag air pressure sensor; the controller has a control module, and the controller can receive the detection data of the ambient air pressure sensor and the airbag air pressure sensor and control the opening and closing of the solenoid valve and the fan (31) after judgment by the control module; when the air pressure data of the airbag air pressure sensor is lower than the air pressure data of the ambient air pressure sensor, and the difference is lower than the lower limit threshold, the control module controls the fan (31) to start and controls the corresponding solenoid valve to open for inflation; when the difference between the air pressure data of the airbag air pressure sensor and the air pressure data of the ambient air pressure sensor reaches a set upper limit threshold, the control module controls the corresponding solenoid valve to close; when all the solenoid valves are closed, the controller controls the fan (31) to stop running.

5. A multi-channel inflation device according to claim 1, characterized in that: The partition support structure (4) comprises a partition layer (41) and a support layer (42) fixed above the partition layer (41); the partition layer (41) divides the frame (1) into the upper half frame (12) and the lower half frame (11); the support layer (42) supports the inflator (3) and separates the inflator (3) from the partition layer (41); the partition layer (41) comprises four partition rods (411) that form a square along the circumference; the lower packaging plate (13) above the lower half frame (11) is fixedly connected to the partition rods (411) through four side edges and completely blocks the square space surrounded by the four partition rods (411).

6. A multi-channel inflation device according to claim 5, characterized in that: The support layer (42) comprises two support rods (421) mounted side by side on the partition rod (411) and a support plate (422) mounted on the support rod (421); the inflator (3) is mounted on the support plate (422); and a heat insulation pad is provided at the connection between the support rod (421) and the partition rod (411).

7. A multi-channel inflation device according to claim 6, characterized in that: The support plate (422) and the lower packaging plate (13) on the upper side of the lower half frame (11) are both provided with through holes for the heat conducting rod (51) to pass through.

8. A multi-channel inflation device according to claim 7, characterized in that: The upper half frame (12) is further provided with an auxiliary air duct (6) located on the side of the fan (31) away from the air inlet and having a solenoid valve. One end of the auxiliary air duct (6) is connected to the fan (31) and the other end extends into the lower half frame (11). The support plate (422) and the lower packaging plate (13) on the upper side of the lower half frame (11) are both provided with through holes for the auxiliary air duct (6) to pass through. After the fan (31) is started, air can be inflated into the lower half frame (11) through the auxiliary air duct (6). A side hole (61) is provided on the portion of the auxiliary air duct (6) located in the upper half frame (12).

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