Safety air bag and vehicle-mounted component protection system

Abstract

The utility model relates to a supplementary restraint system and a vehicle-mounted part protection system, the supplementary restraint system comprises base cloth and first forming cloth, the first forming cloth is connected to the base cloth and forms an annular air passage and at least two supporting air passages, the supporting air passages are located on the inner ring of the annular air passage, the supporting air passages are arranged in a crossed mode, and the first forming cloth is arranged on the base cloth. The mutually crossed supporting air channels are communicated at the intersection point, and meanwhile, the two ends of each supporting air channel are both communicated with the annular air channel; an air inlet is formed in the annular air channel or any supporting air channel. The vehicle-mounted component protection system comprises a triggering mechanism, at least one gas generator and at least one safety airbag. The safety air bag is high in inflation speed and good in pressure uniformity, the gas generator is triggered to work by detecting the abnormal state of an automobile through the triggering mechanism, and therefore the safety air bag is rapidly inflated and unfolded to form a flexible protection layer, and the face, provided with the safety air bag, of a vehicle-mounted component is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile safety accessories, especially to a safety air bag and vehicle-mounted component protection system. BACKGROUND

[0002] With the public's recognition of new energy vehicles being higher and higher, the market share of new energy vehicles is increasing year by year, while enjoying the convenience brought by the intelligence of new energy vehicles, new risks are also hidden. The core battery safety is particularly important hidden danger, according to statistics, the fire caused by battery self-ignition is not less than one thousand times a year, causing great economic loss and endangering personal safety. At present, high-strength material battery shell is mainly used in the automobile industry to protect the battery core, but this way cannot effectively avoid impact, and there is still a great risk. SUMMARY

[0003] The utility model aims at providing a safety air bag and vehicle-mounted component protection system, which can provide good safety protection for battery and other vehicle-mounted components.

[0004] In order to achieve the above purpose, the utility model discloses a safety air bag, which comprises a base cloth and a first forming cloth, the first forming cloth is connected to the base cloth and forms an annular air channel and at least two supporting air channels, the supporting air channels are located in the inner circle of the annular air channel, the supporting air channels are arranged in cross, and the supporting air channels are communicated at the cross point, and the two ends of the supporting air channels are communicated with the annular air channel; the annular air channel or any supporting air channel is provided with an air inlet.

[0005] After the above setting, the annular air channel and the supporting air channel are formed to be communicated with each other, so that the air cavity of the safety air bag is in the form of pipe network, the inflation speed is faster, and the pressure uniformity is better, so that a flexible buffer layer can be quickly formed. In addition, the setting of the base cloth can also ensure the coverage area and avoid the penetration of the safety air bag by foreign matters from the gap between the air channels.

[0006] Preferably, the first forming cloth is further connected with the base cloth to form a mounting ring channel for placing a gas generator, the mounting ring channel is communicated with the annular air channel or the supporting air channel, and the air inlet is located in the inner circle of the mounting ring channel. By setting the mounting ring channel to install the gas generator, the position of the gas generator relative to the safety air bag can be relatively stable, so as to ensure that the gas generator can reliably inflate the safety air bag, and in addition, such setting also makes the gas generator closer to the air inlet of the safety air bag, and the inflation reaction rate is faster.

[0007] Preferably, the base cloth is hollowed out at the position corresponding to the inner ring of the mounting ring channel. The hollowed-out setting can facilitate the installation of the gas generator, and the gas generator can also be connected to external objects (such as a vehicle frame) through the hollowed-out part, thereby improving the installation stability of the gas generator.

[0008] Preferably, the inner ring of the mounting ring channel is shaped to match the outer shape of the gas generator. This setting avoids the risk of the gas generator being squeezed when the mounting ring channel inflates and expands, and avoids the risk of the gas generator being disconnected from the gas inlet of the airbag.

[0009] Preferably, the gas inlet is arranged on the annular gas channel; at least the part of the support gas channel near the gas inlet is provided with a buffer gas channel, one end of the buffer gas channel is connected to the support gas channel, and the other end of the buffer gas channel is connected to the annular gas channel; the first shaped cloth part is connected to the base cloth to form the buffer gas channel, or the buffer gas channel is independently arranged relative to the first shaped cloth and the base cloth. Arranging the gas inlet on the annular gas channel can facilitate the connection with the gas generator. By arranging the buffer gas channel, the buffer gas channel can play a role in flow distribution, and can also improve the tear resistance at the connection between the support gas channel and the annular gas channel, especially at the connection between the support gas channel near the gas inlet and the annular gas channel, thereby prolonging the service life of the safety airbag.

[0010] Preferably, at least one second shaped cloth is further included, each of the second shaped cloths is connected at the head and tail to form a reinforcing gas channel; the annular gas channel and the support gas channel cooperate to divide a plurality of grids, and part or all of the grids are provided with the reinforcing gas channel, one end of the reinforcing gas channel is connected to one of the support gas channels constituting the grid, and the other end of the reinforcing gas channel is connected to the annular gas channel or another support gas channel constituting the grid. By arranging the reinforcing gas channel to form a multi-stage pipeline network, the inflation efficiency can be further improved, and in addition, the reinforcing gas channel can also play a role in supplementary protection.

[0011] Preferably, at least the base cloth is made of a high-temperature-resistant and puncture-resistant composite flame-retardant material. This setting ensures the reliability of the safety airbag.

[0012] The utility model discloses still disclose a kind of vehicle-mounted component protection systems, it includes triggering mechanism, at least one gas generator and at least one above-mentioned safety airbag, each the gas generator corresponds at least one safety airbag, the gas outlet of the gas generator is communicated with the gas inlet of safety airbag;The triggering mechanism is used to detect the abnormal state of automobile and triggers gas generator to work.

[0013] The triggering mechanism detects the abnormal state of automobile to trigger gas generator to work, so that safety airbag is inflated to form flexible protective layer, and the face of vehicle-mounted component provided with safety airbag is protected.

[0014] Preferably, the trigger mechanism comprises a controller and a first sensor, the first sensor and the gas generator are connected to the controller, and the first sensor is a pressure sensor or an acceleration sensor.

[0015] Preferably, the safety airbag is arranged at the bottom of the vehicle, and the trigger mechanism further comprises a second sensor for detecting whether the vehicle is submerged, and the second sensor is connected to the controller. By detecting whether the vehicle is submerged to control the deployment of the safety airbag, the time for the vehicle to float on the water surface after falling into the water can be prolonged, thereby providing more self-rescue time or waiting-for-rescue time for the passengers in the vehicle.

[0016] The utility model has the following beneficial effects:

[0017] The utility model discloses the annular air passage and support air passage that form mutual intercommunication, make the air cavity of safety airbag present pipe network, compared with the air cavity of integral type, and the inflation speed is faster, and the pressure uniformity is also better, thereby can form the flexible buffer layer quickly. In addition, the setting of base cloth can also guarantee the coverage area, and avoid that safety airbag is penetrated from the gap between air passage by external object. Through the trigger mechanism detects the abnormal state of the vehicle to trigger the gas generator to work, thereby makes safety airbag inflate and deploy and form the flexible protective layer, and the face of the vehicle-mounted component setting safety airbag plays the protection function. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the schematic diagram of vehicle-mounted component protection system.

[0019] Figure 2 It is the schematic diagram of safety airbag on the vehicle.

[0020] Figure 3 It is the schematic diagram of safety airbag embodiment one.

[0021] Figure 4 It is the schematic diagram of another view of safety airbag embodiment one.

[0022] Figure 5 It is the schematic diagram of safety airbag embodiment two.

[0023] Figure 6 It is the schematic diagram of safety airbag embodiment three.

[0024] Note: Figure 1 In the drawings, the solid line of connecting line represents wire connection, and the dotted line of connecting line represents pipeline connection.

[0025] Explanation of main component symbols:

[0026] Airbag 10, base cloth 11, first forming cloth 12, annular gas passage 13, support gas passage 14, mounting ring passage 15, hollow 16, buffer gas passage 17, reinforcing gas passage 18;

[0027] Gas generator 20;

[0028] Controller 31, first sensor 32, second sensor 33;

[0029] Automobile 40, battery 41. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further detailed with the utility model combined with the drawings and examples.

[0031] As Figure 1 The utility model discloses a kind of vehicle-mounted component protection systems, it includes trigger mechanism, at least one gas generator 20 and at least one airbag 10, each gas generator 20 corresponds at least one airbag 10, in the case, each airbag 10 is configured with one gas generator 20, the gas outlet of gas generator 20 is communicated with the gas inlet of airbag 10, and then airbag 10 is inflated.

[0032] Trigger mechanism is used to detect the abnormal state of automobile 40 and trigger gas generator 20 to work, specifically, trigger mechanism includes controller 31, first sensor 32 and second sensor 33, gas generator 20, first sensor 32 and second sensor 33 are connected with controller 31, wherein, first sensor 32 is pressure sensor or acceleration sensor, and second sensor 33 is water immersion detection sensor.When pressure sensor detects that local pressure is suddenly changed or acceleration sensor detects that acceleration is abnormal, first sensor 32 feedback controller 31, controller 31 triggers gas generator 20 to work, so that airbag 10 is unfolded to form flexible protective layer. Or, when second sensor 33 detects that it is immersed, it is judged that automobile 40 is fallen into water, second sensor 33 feedback controller 31, controller 31 triggers gas generator 20 to work, and airbag 10 is unfolded, so as to increase the buoyancy of automobile 40, prolong the water floating time of automobile 40.

[0033] As Figure 2As shown, it is a use scenario of the vehicle component protection system, the airbag 10 is provided and located at the bottom of the vehicle (on the chassis), taking the battery 41 as an example, the battery 41 is located above the airbag 10, the battery 41 is bolted to the chassis of the vehicle 40, and there is a certain gap between the battery 41 and the chassis to provide the airbag 10 to expand. The trigger mechanism detects the abnormal state of the vehicle 40 to trigger the gas generator 20 to work, so that the airbag 10 is inflated and expanded to form a flexible protective layer, and the airbag 10 set on the vehicle component plays a protective role.

[0034] In order to ensure that the airbag 10 is inflated quickly, the airbag 10 is designed in the case, specifically, as an embodiment one Figures 3-4 As shown, the airbag 10 includes a bottom cloth 11 and a first shaped cloth 12, the first shaped cloth 12 is connected (sewn and sealed) on the bottom cloth 11 and forms an annular air channel 13 and at least two support air channels 14, the outer circle of the annular air channel 13 is preferably matched with the shape of the bottom cloth 11, and the shape of the bottom cloth 11 is preferably matched with the shape of the vehicle component it protects. The support air channel 14 is located at the inner circle of the annular air channel 13, the support air channel 14 is arranged in cross, and the support air channels 14 intersected with each other are communicated at the intersection point, and at the same time, the two ends of the support air channel 14 are communicated with the annular air channel 13, thereby forming a pipeline-shaped communication network, that is, the annular air channel 13 and the support air channel 14 cooperate to separate a plurality of grids. In the case, two support air channels 14 are provided, and the number of separated grids is four, and the size and shape of the four grids can be different, which can be adjusted according to the bottom surface condition of the vehicle component.

[0035] An air inlet is arranged on the annular air channel 13 or any support air channel 14, and in order to facilitate connection with the gas generator 20, the air inlet is preferably arranged on the annular air channel 13. In order to facilitate installation of the gas generator 20, the first shaped cloth 12 is locally connected with the bottom cloth 11 to form an installation ring channel 15, the installation ring channel 15 is communicated with the annular air channel 13, the shape of the inner circle of the installation ring channel 15 is matched with the shape of the gas generator 20, the position corresponding to the inner circle of the installation ring channel 15 of the bottom cloth 11 is provided as a hollow 16, and the air inlet is located in the inner circle of the installation ring channel 15. The gas generator 20 is installed in the inner circle of the installation ring channel 15 and connected with the air inlet on the annular air channel 13, and the position of the gas generator 20 relative to the airbag 10 is relatively stable, thereby ensuring that the gas generator 20 reliably inflates the airbag 10, and in addition, such arrangement also makes the gas generator 20 closer to the air inlet of the airbag 10, and the inflation reaction rate is faster. The arrangement of the hollow 16 on the bottom cloth 11 can facilitate installation of the gas generator 20, and the gas generator 20 can also be connected with external objects (such as a vehicle frame) through the hollow 16, thereby improving the installation stability of the gas generator 20.

[0036] In this embodiment, the mounting ring 15 is located in the inner ring of the annular air passage 13, thus concealing the gas generator 20 and preventing damage to the gas generator 20.

[0037] Because the internal cavity of the airbag 10 has a tubular structure, in order to improve the diversion efficiency, and also to improve the tear resistance at the connection points of the air passages and extend the service life of the airbag 10, a buffer air passage 17 needs to be provided at least near the connection point between the support air passage 14 and the annular air passage 13 close to the air inlet. One end of the buffer air passage 17 is connected to the support air passage 14, and the other end of the buffer air passage 17 is connected to the annular air passage 13. The buffer air passage 17 can be formed by partially connecting the first molded fabric 12 to the bottom fabric 11. Alternatively, the buffer air passage 17 can also be set independently relative to the first molded fabric 12 and the bottom fabric 11, and the buffer air passage 17 can be made of fabric.

[0038] In addition, in order to ensure the reliability of the airbag 10 and avoid problems such as battery 41 burning or foreign object puncture causing the airbag 10 to fail, at least the bottom fabric 11 is made of a high temperature resistant and puncture-resistant composite flame-retardant material, preferably the entire airbag 10 is made of a high temperature resistant and puncture-resistant composite flame-retardant material.

[0039] Airbag 10 Example 2

[0040] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the mounting ring 15 is located on the outer ring of the annular air passage 13, which can prevent the gas generator 20 from colliding with the vehicle-mounted component (battery 41) that needs to be protected.

[0041] Airbag 10 Example 3

[0042] like Figure 6 As shown, this embodiment, based on any of the above embodiments, further adds at least one second molding fabric, with each second molding fabric connected end-to-end to form a reinforcing air channel 18. Reinforcing air channels 18 are provided in part or all of the grid, with one or more reinforcing air channels 18 per grid. One end of each reinforcing air channel 18 connects to one of the supporting air channels 14 constituting the grid, and the other end connects to the annular air channel 13 or another supporting air channel 14 constituting the grid. By providing reinforcing air channels 18 to form a multi-level pipe network, inflation efficiency can be further improved. Additionally, the reinforcing air channels 18 also provide supplementary protection.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airbag, characterized by: The safety airbag comprises a base cloth and a first shaped cloth, the first shaped cloth is connected to the base cloth and forms a ring-shaped air channel and at least two support air channels, the support air channels are located in the inner circle of the ring-shaped air channel, the support air channels are arranged in a cross manner, the support air channels cross each other at the cross points, and the two ends of the support air channels are communicated with the ring-shaped air channel; an air inlet is arranged on the ring-shaped air channel or any support air channel.

2. The airbag of claim 1, wherein: The first shaped cloth is partially connected to the base cloth to form a mounting ring channel for placing a gas generator, the mounting ring channel is communicated with the ring-shaped air channel or the support air channel, and the air inlet is located in the inner circle of the mounting ring channel.

3. The airbag of claim 2, wherein: The base cloth is hollowed out at the position corresponding to the inner circle of the mounting ring channel.

4. The airbag of claim 2, wherein: The shape of the inner circle of the mounting ring channel is matched with the shape of the gas generator.

5. The airbag of claim 1, wherein: The air inlet is arranged on the ring-shaped air channel; a buffer air channel is arranged at the communication position of the support air channel and the ring-shaped air channel near the air inlet, one end of the buffer air channel is communicated with the support air channel, and the other end of the buffer air channel is communicated with the ring-shaped air channel; the first shaped cloth is partially connected to the base cloth to form the buffer air channel, or the buffer air channel is independently arranged relative to the first shaped cloth and the base cloth.

6. The airbag of claim 1, wherein: At least one second shaped cloth is further arranged, each second shaped cloth is connected at the head and tail to form a reinforcing air channel; the ring-shaped air channel and the support air channel are matched to divide a plurality of grids, and the reinforcing air channel is arranged in part or all of the grids, one end of the reinforcing air channel is communicated with one of the support air channels constituting the grid, and the other end of the reinforcing air channel is communicated with the ring-shaped air channel or another support air channel constituting the grid.

7. The airbag of claim 1, wherein: At least the base cloth is made of a composite flame-retardant material with high temperature resistance and puncture resistance.

8. An on-board component protection system characterized by: The safety airbag comprises a trigger mechanism, at least one gas generator and at least one safety airbag according to any one of claims 1-7, each gas generator corresponds to at least one safety airbag, the air outlet of the gas generator is communicated with the air inlet of the safety airbag, and the trigger mechanism is used for detecting the abnormal state of the automobile and triggering the gas generator to work.

9. The vehicle component protection system of claim 8, wherein: The trigger mechanism comprises a controller and a first sensor, the first sensor and the gas generator are connected to the controller, and the first sensor is a pressure sensor or an acceleration sensor.

10. The vehicle component protection system of claim 9, wherein: The safety airbag is arranged on the bottom of the automobile, and the trigger mechanism further comprises a second sensor for detecting whether the automobile is immersed in water, and the second sensor is connected to the controller.

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