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High-safety electric vehicle

A high-safety electric vehicle technology, applied in the field of electric vehicles, can solve the problems of poor safety of electric vehicles, achieve the effect of solving poor safety and reducing the risk of fire

Pending Publication Date: 2021-03-19
JIANGSU JINPENG VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the technical problem of poor safety of electric vehicles in the prior art by providing a high-safety electric vehicle, and realizes that the cracks in the battery pack casing are automatically sealed after the vehicle battery is damaged by collision, and the air inside and outside the battery pack casing is prevented. The technical effect of flow and thus improve the safety of electric vehicles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] like figure 1 and figure 2 As shown, the high-safety electric vehicle includes a vehicle body, a battery pack 1 , a polyurethane chamber 4 , a carbon dioxide chamber 5 , a fragile tube 6 and a casing 7 .

[0088] The battery pack 1 includes a battery unit 2 and a battery pack case 3. There are multiple battery units 2, all of which are positioned inside the battery pack case 3 to provide power for the operation of the vehicle.

[0089] The inside of the polyurethane bin 4 is filled with flame retardant polyurethane; the flame retardant polyurethane is a polyurethane foam caulking agent added with a flame retardant; the flame retardant is an organic flame retardant or an inorganic flame retardant; The pressure inside the polyurethane chamber 4 can be 5-6 kgf / cm2, and the polyurethane chamber 4 is positioned on the vehicle.

[0090] The described carbon dioxide storehouse 5 is filled with liquid carbon dioxide.

[0091] The casing 7 is set on the battery casing 3; the...

Embodiment 2

[0100] In order to further improve the safety of the electric vehicle and reduce the fire risk of the battery pack 1 , this embodiment adds a gap filling component 19 on the basis of the first embodiment.

[0101] like figure 1 and figure 2 As shown, the gap filling assembly 19 includes a temperature sensor 20, a control assembly 39, a filling hose, a filling nozzle 21, a filling valve body 22 and a filling chamber 23; the temperature sensor 20 is positioned in the battery pack casing 3, used to detect the temperature of the battery unit 2; the temperature sensor 20 is electrically connected to the independent power supply 10, and is connected to the signal of the control assembly 39; the control assembly 39 is used to control the valve body ( The action of filling the valve body 22) can be a logic controller, which is a prior art, and will not be described in detail here; the number of the filling nozzles 21 is multiple, all fixed on the battery pack casing 3, spatially Lo...

Embodiment 3

[0105] Considering that the gap filling assembly 19 in the second embodiment is in operation (filling up the gap between the battery cells 2), the amount of flame-retardant polyurethane that needs to be sprayed will be different because of whether the actual battery pack case 3 is damaged (the battery pack case 3 After the damage, the flame-retardant polyurethane ejected by the filling nozzle 21 may be extruded from the crack, and the demand for the flame-retardant polyurethane is larger than that of the battery pack shell 3 without damage 2), and it is also related to whether the battery unit 2 has caught fire ( The fire temperature is too high, which affects the foaming of flame-retardant polyurethane); in line with the principle of practicality and economy, this embodiment has made the following improvements on the basis of embodiment two:

[0106] Such as Figure 5 As shown, the filling bin 23 includes a primary filling bin 24 and a secondary filling bin 25; the primary fi...

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Abstract

The invention discloses a high-safety electric vehicle which comprises a vehicle body and a battery pack. The battery pack comprises a battery unit and a battery pack shell; the high-safety electric vehicle further comprises a polyurethane bin, a carbon dioxide bin, a brittle pipe and a shell. The polyurethane bin is filled with flame-retardant polyurethane; the carbon dioxide bin is filled with liquid carbon dioxide; the shell is sleeved on the battery pack shell; the brittle pipes are made of hard plastic, are densely distributed between the battery pack shell and the shell and are fixedly connected to the battery pack shell and the shell; the brittle pipes comprise a first brittle pipe and a second brittle pipe; one end of the first brittle pipe is closed, and the other end communicateswith the polyurethane bin; one end of the second brittle pipe is closed, and the other end is communicated with the carbon dioxide bin; when the battery pack shell is damaged and cracks occur in thebattery pack shell during collision of the electric vehicle, the brittle pipes at the cracks are broken at the same time, the flame-retardant polyurethane and the carbon dioxide are sprayed out from the broken positions of the brittle pipes to seal the cracks, and oxygen is prevented from entering to reduce the spontaneous combustion risk of batteries.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a high-safety electric vehicle. Background technique [0002] For vehicles that are partially or fully powered by batteries, it is usually necessary to arrange a large-capacity battery in the vehicle to provide sufficient instantaneous power and as long as possible cruising range. [0003] When the battery is working, it will generate heat. If the temperature is too high, it will directly affect the working performance and life of the battery. Once the vehicle collides and damages the battery pack and its casing, it is extremely easy to cause fire and explosion, which is a major safety hazard. [0004] In the prior art, the car battery is usually arranged in a relatively safe position to reduce the risk of damage to the battery pack, but no matter where the battery pack is placed in the vehicle, some damage is inevitable; after the vehicle battery pack is damaged, the a...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L50/64B60L58/24H01M50/204H01M50/242H01M50/244H01M50/249
CPCB60L3/0007B60L50/64B60L50/66B60L58/24H01M2220/20Y02T10/70
Inventor 朱红军钱春虎高裕河
Owner JIANGSU JINPENG VEHICLE CO LTD
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