Escape assisting device, vehicle door structure and vehicle

Abstract

The invention discloses an escape assisting device, a vehicle door structure and a vehicle, and relates to the technical field of vehicles, the escape assisting device comprises a shell and a spray head, the shell is provided with a containing cavity, and a fire extinguishing agent is stored in the containing cavity; and at least one spray head is arranged, the spray head is used for being arranged in the area, located between the battery pack and the vehicle door body, of the bottom of the vehicle, the spray head communicates with the containing cavity, an outlet of the spray head faces downwards, and the spray head is used for spraying the fire extinguishing agent downwards. According to the technical scheme, the spray head is arranged in the area, located between the battery pack and the vehicle door body, of the bottom of the vehicle, when the battery pack of the vehicle is on fire, the fire extinguishing agent stored in the containing cavity is sprayed downwards through the spray head, flame is prevented from being spread towards the vehicle door body, and the fire extinguishing effect is improved. The possibility that flames inrush into a vehicle due to air pressure change when the door is opened is reduced, and the safety of escape personnel is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an escape assisting device, a door structure and a vehicle. Background Art

[0002] The rapid development of new energy vehicles has led to an increasing demand for safety testing of new energy vehicles. Among the various dangers, the risk of fire in new energy vehicles is a key issue that people are concerned about. In related technologies, after the battery pack catches fire, the flames generally spray out from the battery pack pressure relief valve area, forming a flame covering the bottom of the vehicle. When people open the door to escape, the change in air pressure will cause the flames to flow into the passenger compartment, causing direct danger to the passengers. Summary of the invention

[0003] The main purpose of the present invention is to propose an escape assistance device, a door structure and a vehicle, aiming to at least solve the technical problem in the related art that after a battery pack catches fire, when a person opens the door to escape, the change in air pressure will cause flames to rush into the passenger compartment, causing direct danger to the occupants.

[0004] To achieve the above object, the present invention provides an escape assistance device, comprising:

[0005] a housing having a containing chamber in which a fire extinguishing agent is stored; and

[0006] At least one nozzle is provided, and the nozzle is used to be set in the area between the battery pack and the door body at the bottom of the vehicle. The nozzle is connected to the accommodating cavity and the outlet is set downward to spray the fire extinguishing agent downward.

[0007] In one embodiment, the spray head is disposed at the bottom of the housing.

[0008] In one embodiment, the escape assistance device further comprises a baffle, which is movably arranged relative to the housing to have a shielding position and an avoidance position;

[0009] In the shielding position, the baffle is located below the shell to shield the outlet of the nozzle;

[0010] In the avoidance position, the baffle is offset from the outlet of the nozzle to avoid the nozzle from spraying the fire extinguishing agent.

[0011] In one embodiment, one end of the baffle is rotatably disposed below the shell to have the shielding position and the avoidance position on a rotational stroke.

[0012] In one embodiment, the escape assistance device further includes a locking structure for electrically connecting to the battery pack, wherein the locking structure is disposed between the housing and the baffle, and corresponding to the shielding position, the locking structure has a locked state when powered on and an unlocked state when powered off;

[0013] In the locked state, the locking structure locks the baffle and the housing;

[0014] In the unlocked state, the baffle moves to the avoidance position under the action of gravity.

[0015] In one embodiment, the locking structure includes an electromagnetic part and a magnetic matching part respectively arranged on the housing and the baffle.

[0016] The present invention also provides a vehicle door structure, comprising:

[0017] Door frame;

[0018] a vehicle door body, movably disposed on the door frame; and

[0019] An escape assisting device is arranged at the bottom of the door frame, and the escape assisting device comprises:

[0020] a housing having a containing chamber in which a fire extinguishing agent is stored; and

[0021] At least one nozzle is provided, and the nozzle is used to be set in the area between the battery pack and the door body at the bottom of the vehicle. The nozzle is connected to the accommodating cavity and the outlet is set downward to spray the fire extinguishing agent downward.

[0022] In one embodiment, the nozzle is arranged at the bottom of the shell; the escape auxiliary device further comprises a baffle, which is movably arranged relative to the shell to have a shielding position and an avoidance position;

[0023] In the shielding position, the baffle is located below the shell to shield the outlet of the nozzle;

[0024] In the avoidance position, the baffle is misaligned with the outlet of the nozzle to avoid the nozzle from spraying the fire extinguishing agent;

[0025] One end of the baffle is rotatably disposed below the shell to have the shielding position and the avoidance position on the rotation stroke;

[0026] One end of the baffle in the thickness direction of the door frame is rotatably connected to the shell.

[0027] The present invention further provides a vehicle, comprising the above-mentioned door structure.

[0028] In one embodiment, the escape assistance device further includes a controller, which is electrically connected to the nozzle to control the operation of the nozzle, and the controller is disposed in a passenger compartment of the vehicle.

[0029] In the technical solution of the present invention, the shell has a accommodating cavity, and the accommodating cavity stores a fire extinguishing agent; the nozzle is used to be arranged in the area at the bottom of the vehicle between the battery pack and the door body, and the nozzle is connected to the accommodating cavity and the outlet is arranged downward, so as to spray the fire extinguishing agent downward; in this way, by arranging the nozzle in the area at the bottom of the vehicle between the battery pack and the door body, when the battery pack of the vehicle catches fire, the fire extinguishing agent stored in the accommodating cavity is sprayed downward through the nozzle, thereby blocking the spread of flames toward the door body, reducing the possibility of flames rushing into the interior of the vehicle due to changes in air pressure when the door is opened, and ensuring the safety of escaping personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an escape assistance device provided by the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the structure of the baffle of the escape auxiliary device in the avoidance position;

[0033] Figure 3 This is a schematic three-dimensional structural diagram of an embodiment of a vehicle door structure provided by the present invention.

[0034] Description of Figure Numbers:

[0035] 1000. Door structure; 100. Escape assist device; 1. Shell; 2. Nozzle; 3. Baffle; 4. Locking structure; 41. Electromagnetic part; 42. Magnetic matching part; 5. Door frame; 6. Door body; 7. Controller.

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] The rapid development of new energy vehicles has led to an increasing demand for safety testing of new energy vehicles. Among the various dangers, the risk of fire in new energy vehicles is a key issue that people are concerned about. In related technologies, after the battery pack catches fire, the flames generally spray out from the battery pack pressure relief valve area, forming a flame covering the bottom of the vehicle. When people open the door to escape, the change in air pressure will cause the flames to flow into the passenger compartment, causing direct danger to the passengers.

[0041] The main purpose of the present invention is to propose an escape assistance device, a door structure and a vehicle, aiming to at least solve the technical problem in the related art that after a battery pack catches fire, when a person opens the door to escape, the change in air pressure will cause flames to rush into the passenger compartment, causing direct danger to the occupants.

[0042] See also Figure 1 , Figure 2 and Figure 3In one embodiment of the present invention, the escape assistance device 100 includes a shell 1 and a nozzle 2, wherein the shell 1 has a receiving cavity, and the receiving cavity stores a fire extinguishing agent; the nozzle 2 is provided with at least one nozzle 2, and the nozzle 2 is used to be arranged in the area between the battery pack and the door body 6 at the bottom of the vehicle, and the nozzle 2 is connected to the receiving cavity and the outlet is arranged downward, so as to spray the fire extinguishing agent downward.

[0043] In the technical solution of the present invention, the shell 1 has a accommodating cavity, and the accommodating cavity stores a fire extinguishing agent; the nozzle 2 is used to be arranged in the area at the bottom of the vehicle between the battery pack and the door body 6, and the nozzle 2 is connected to the accommodating cavity and the outlet is arranged downward, so as to spray the fire extinguishing agent downward; in this way, by arranging the nozzle 2 in the area at the bottom of the vehicle between the battery pack and the door body 6, when the battery pack of the vehicle catches fire, the fire extinguishing agent stored in the accommodating cavity is sprayed downward through the nozzle 2, thereby blocking the spread of flames toward the door body 6, reducing the possibility of flames rushing into the interior of the vehicle due to changes in air pressure when the door is opened, and ensuring the safety of escaping personnel.

[0044] The number of the nozzles 2 can be one or more. In actual settings, the number of the nozzles 2 will usually be different depending on the type of the nozzles 2 selected, and the portion directly below the door body 6 can be covered as much as possible.

[0045] The nozzle 2 is powered by a separate backup power supply to prevent the nozzle 2 from being unusable due to lack of power supply after a fire in the battery pack. The backup power supply can be provided in the housing 1 or in other places of the vehicle, and there is no limitation here.

[0046] This design does not limit the type of fire extinguishing agent, which can be a dry powder fire extinguishing agent or a foam fire extinguishing agent.

[0047] When the nozzle 2 sprays downward, it can be vertically downward or tilted downward. When the nozzle 2 sprays tilted, it can be toward the battery pack or toward the door body 6. When the nozzle 2 sprays toward the battery pack, the fire extinguishing agent sprayed by the nozzle 2 will be further away from the door body 6, which will increase the risk of the battery pack flame passing over the sprayed fire extinguishing agent. When the nozzle 2 sprays toward the door body 6, after the escapee comes out of the vehicle, the fire extinguishing agent is likely to be sprayed on the feet of the escapee, causing discomfort, especially when the fire extinguishing agent is a low-temperature fire extinguishing agent, which may cause frostbite to the escapee. Therefore, in an embodiment of the present invention, the spraying direction of the nozzle 2 is set vertically downward.

[0048] The nozzle 2 and the shell 1 can be arranged together or separately. If they are arranged separately, when actually used in a vehicle, the nozzle 2 can be arranged only in the area between the battery pack and the door body 6 at the bottom of the vehicle, while the shell 1 is arranged in other places, and the accommodating cavity of the shell 1 is connected to the nozzle 2 through a connecting pipe; in this way, when the shell 1 is arranged in other places such as the trunk, it can be arranged larger to accommodate more fire extinguishing agents, and will not occupy too much space under the vehicle. Of course, the structure will also be more complicated and more troublesome during installation. In an embodiment of the present invention, the nozzle 2 is arranged at the bottom of the shell 1, so that the shell 1 and the nozzle 2 are directly arranged together, and the communication between the nozzle 2 and the accommodating cavity does not need to be completed through a pipe. An opening can be set on the shell 1, and the nozzle 2 can be directly installed in the opening, which makes the overall structure of the escape assistance device 100 simpler.

[0049] Of course, when the nozzle 2 and the shell 1 are arranged together, that is, when they are finally used on a vehicle, the shell 1 is located at the bottom of the vehicle. The material of the shell 1 and the nozzle 2 should have high strength to avoid damage caused by collision with other objects during the driving of the vehicle. It should also have fireproof and high temperature resistant properties to avoid the possibility of the flame burning the shell 1 and the nozzle 2 after the battery pack catches fire.

[0050] It is understandable that the nozzle 2 is located at the bottom of the vehicle. In the daily use of the vehicle, it is inevitable to encounter rainy days or dirty roads, which may cause impurities to block the outlet of the nozzle 2, thereby affecting the use of the nozzle 2 in an emergency. Figure 1 and Figure 2 The escape assisting device 100 further includes a baffle 3, which is movably arranged relative to the housing 1 to have a shielding position and an avoidance position; in the shielding position, the baffle 3 is located below the housing 1 to shield the outlet of the nozzle 2; in the avoidance position, the baffle 3 is misaligned with the outlet of the nozzle 2 to avoid the nozzle 2 from spraying the fire extinguishing agent. In this way, by setting a baffle 3, when the vehicle is in the normal driving state, the baffle 3 is in the shielding position to shield the outlet of the nozzle 2 to prevent impurities from clogging the nozzle 2; when the battery pack catches fire, the baffle 3 is controlled to move to the avoidance position, that is, the shielding of the nozzle 2 is cancelled to prevent the nozzle 2 from spraying downward.

[0051] The baffle 3 can move in a variety of ways, and can move horizontally under the vehicle. In an embodiment of the present invention, one end of the baffle 3 is rotatably disposed below the shell 1 to have the shielding position and the avoidance position on the rotational stroke.

[0052] The baffle 3 is kept in the shielding position in normal state, and only needs to be moved to the avoidance position when the battery pack catches fire. There are many ways to move the baffle 3 to the avoidance position. In the implementation of the present invention, please refer to Figure 1 and Figure 2 , the escape assisting device 100 further includes a locking structure 4 for electrically connecting to the battery pack, the locking structure 4 being arranged between the housing 1 and the baffle 3, corresponding to the shielding position, the locking structure 4 having a locked state with power on and an unlocked state with power off; in the locked state, the locking structure 4 locks the baffle 3 and the housing 1; in the unlocked state, the baffle 3 moves to the avoidance position under the action of gravity. In this way, the locking structure 4 is energized in the normal state, and the locked state is maintained, so that the baffle 3 can be maintained in the locked position, which protects the nozzle 2. When the battery pack catches fire, the power supply will be lost, the locking structure 4 will be powered off and thus in the unlocked state, and the baffle 3 will rotate to the avoidance position under the action of gravity. In this process, no power is required and the response is rapid. Compared with directly driving the baffle 3 to rotate through the motor gear structure, the response is faster, it will not be unusable due to the battery pack catching fire, and no additional control operation is required.

[0053] The locking structure 4 has various forms. In the embodiment of the present invention, please refer to Figure 2 The locking structure 4 includes an electromagnetic part 41 and a magnetic matching part 42 respectively arranged on the housing 1 and the baffle 3. In this way, in normal state, the electromagnetic part 41 is powered by the battery pack, so that the electromagnetic part 41 generates a magnetic field to adsorb the magnetic matching part 42, so that the baffle 3 is fixed to the housing 1 at the shielding position. When the battery pack catches fire, the electromagnetic part 41 will quickly lose its magnetism, and the electromagnetic part 41 and the magnetic matching part 42 will contact and match, and the baffle 3 can move to the avoidance position under the action of gravity.

[0054] The present invention also provides a vehicle door structure 1000, please refer to Figure 3 The vehicle door structure 1000 includes a door frame 5, a door body 6 and an escape assist device 100. The specific structure of the escape assist device 100 is referred to the above embodiment. Since the vehicle door structure 1000 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The escape assist device 100 is arranged at the bottom of the door frame 5.

[0055] In the technical solution of the present invention, the nozzle 2 is arranged in the area between the battery pack and the door body 6 at the bottom of the vehicle. When the battery pack of the vehicle catches fire, the fire extinguishing agent stored in the accommodating cavity is sprayed downward through the nozzle 2 to block the spread of flames toward the door body 6, thereby reducing the possibility of flames rushing into the interior of the vehicle due to changes in air pressure when the door is opened, thereby ensuring the safety of escaping personnel.

[0056] The escape assistance device 100 may be arranged on the chassis or at the bottom of the door frame 5. In the embodiment of the present invention, by arranging the escape assistance device 100 at the bottom of the door frame 5, which is usually higher than the chassis of the vehicle, the possibility of the escape assistance device 100 colliding with the vehicle while the vehicle is driving can be reduced.

[0057] In one embodiment, the nozzle 2 is arranged at the bottom of the shell 1; the escape auxiliary device 100 also includes a baffle 3, which is movably arranged relative to the shell 1 to have a blocking position and an avoidance position; in the blocking position, the baffle 3 is located below the shell 1 to block the outlet of the nozzle 2; in the avoidance position, the baffle 3 is misaligned with the outlet of the nozzle 2 to avoid the nozzle 2 from spraying the fire extinguishing agent; one end of the baffle 3 is rotatably arranged below the shell 1 to have the blocking position and the avoidance position on the rotation stroke; one end of the baffle 3 in the thickness direction of the door frame 5 is rotatably connected to the shell 1.

[0058] In the technical solution of this embodiment, please refer to Figure 1 and Figure 2 By rotatably connecting one end of the baffle 3 in the thickness direction of the door frame 5 to the shell 1, when the battery pack catches fire, the baffle 3 is in the avoidance position and is in a vertical state. The thickness direction of the baffle 3 is in the same direction as the thickness direction of the door frame 5. In this way, the baffle 3 can also block the fire, and cooperate with the spraying of the nozzle 2 to better reduce the possibility of flames entering the interior of the vehicle.

[0059] The present invention also proposes a vehicle, which includes a door structure 1000. The specific structure of the door structure 1000 refers to the above-mentioned embodiments. Since the vehicle structure adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0060] There are many ways to control the operation of the nozzle 2, which can be manual control or monitoring the battery pack through a sensor. After the battery pack catches fire, the nozzle 2 is controlled to work automatically. However, since the amount of the fire extinguishing agent that can be contained in the accommodating chamber is limited, the vehicle may face various situations when driving. For example, after the battery pack catches fire, the vehicle is on a highway. It takes a certain amount of time to park the vehicle in the emergency passage. During this period of time, it is very likely that the fire extinguishing agent has been sprayed out, so it cannot play a blocking role when opening the door. Therefore, in an embodiment of the present invention, the vehicle also includes a controller 7, which is electrically connected to the nozzle 2 to control the operation of the nozzle 2. The controller 7 is arranged in the passenger compartment of the vehicle. In this way, the controller 7 is arranged in the passenger compartment of the vehicle, which is convenient for manually controlling the opening of the nozzle 2, so that preparations can be made before getting off the vehicle to prevent the flame from causing harm to the passengers.

[0061] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An escape assistance device, characterized in that: include: The housing has a receiving chamber in which a fire extinguishing agent is stored; as well as, At least one nozzle is provided, and the nozzle is used to be set in the area between the battery pack and the door body at the bottom of the vehicle. The nozzle is connected to the accommodating cavity and the outlet is set downward to spray the fire extinguishing agent downward.

2. The escape assistance device according to claim 1, characterized in that: The spray head is arranged at the bottom of the shell.

3. The escape assistance device according to claim 2, characterized in that: The escape assisting device further comprises a baffle, which is movably arranged relative to the housing to have a shielding position and an evasive position; In the shielding position, the baffle is located below the shell to shield the outlet of the nozzle; In the avoidance position, the baffle is misaligned with the outlet of the nozzle to avoid the nozzle from spraying the fire extinguishing agent.

4. The escape assistance device according to claim 3, characterized in that: One end of the baffle is rotatably arranged below the shell to have the shielding position and the avoidance position on the rotation stroke.

5. The escape assistance device according to claim 4, characterized in that: The escape assist device further comprises a locking structure for electrically connecting to the battery pack, wherein the locking structure is arranged between the housing and the baffle, and corresponding to the shielding position, the locking structure has a locked state when powered on and an unlocked state when powered off; In the locked state, the locking structure locks the baffle and the housing; In the unlocked state, the baffle moves to the avoidance position under the action of gravity.

6. The escape assistance device according to claim 5, characterized in that: The locking structure comprises an electromagnetic part and a magnetic matching part which are respectively arranged on the housing and the baffle.

7. A vehicle door structure, characterized in that: include: Door frame; A vehicle door body, movably arranged on the door frame; as well as, An escape assistance device is arranged at the bottom of the door frame, and the escape assistance device is the escape assistance device according to any one of claims 1 to 6.

8. The escape assistance device according to claim 7, characterized in that: The escape assisting device is the escape assisting device as claimed in claim 4; One end of the baffle in the thickness direction of the door frame is rotatably connected to the shell.

9. A vehicle, characterized in that: Comprising the vehicle door structure as claimed in claim 7 or 8.

10. The vehicle according to claim 9, characterized in that The vehicle further includes a controller, which is electrically connected to the nozzle to control the operation of the nozzle, and the controller is disposed in a passenger compartment of the vehicle.

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