JPH0565367B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an electric vehicle in which a battery is mounted inside the vehicle.

<Conventional technology> Some conventional electric vehicles have batteries placed under the floor, but this exposes the batteries to the outside, so it is better to store the batteries inside the vehicle. is more preferable, but in this case, the hydrogen gas released from the battery during use may ignite, which may be dangerous to the occupants. Therefore, as a safety measure, when batteries were loaded into the passenger compartment, they were housed in a sealed metal box so that the occupants would not be harmed in the event of an explosion.

<Problems to be Solved by the Invention> However, with such a sealed structure, when the temperature rises such as in summer, the temperature inside the container housing the battery rises, causing damage to the function of the battery and ignition of hydrogen gas generated during use. There was a problem that became easier.

<Means for Solving the Problems> The electric vehicle according to the first aspect of the present invention includes a storage container that sealsly stores a battery mounted in a vehicle interior, and an upper end connected to both front and rear ends of the storage container, respectively. a pair of ventilation ducts each having a lower end opening under the floor and communicating the inside of the storage container with the outside of the vehicle; a fan provided in at least one of the ventilation ducts to flow outside air into the storage container; The present invention is characterized by comprising an explosion-proof net attached to the opening at the lower end of the ventilation duct where the fan is not provided.

In addition to the configuration of the first invention, the electric vehicle according to the second aspect of the present invention further comprises a net locking portion formed at the opening on the lower end side of the ventilation duct, and the ventilation duct being connected to the ventilation duct via the net locking portion. An explosion-proof net is removably attached to the opening on the lower end side of the explosion-proof net, and an elastically deformable net holding spring is attached to the explosion-proof net to fix the explosion-proof net to the net locking part by spring force. It is characterized by the following.

<Function> The air inside the battery storage container is discharged due to the wind generated by the running of the vehicle and forced exhaust by the fan, and the temperature decreases.Also, even if the hydrogen gas ignites, the battery will not be released to the occupants inside the vehicle. Since it has a sealed structure, there is no danger of harm.
Additionally, for the outside of the vehicle, an explosion-proof net is installed at the opening at the bottom of the ventilation duct that leads from the battery storage container to the outside to prevent flames from spewing out and damaging the surrounding area. It seems like nothing ever happens. Furthermore, the explosion-proof net can be attached and detached from the net locking part by elastic deformation of the net holding spring, making inspection and cleaning easy, ensuring sufficient ventilation, and ensuring proper explosion-proof function at all times. .

<Example> An example of the present invention will be described below. FIG. 1 schematically shows a side view of an electric vehicle 4 equipped with a battery storage container 2 according to this embodiment.
(hereinafter referred to as "container 2") is provided on the rear floor plate 6 of electric vehicle 4 (hereinafter referred to as "vehicle 4"). The automobile 4 is driven using a battery 8 in the container 2 as a power source, and the number of batteries 8 necessary for driving the vehicle is stored. When the amount of charge in the battery 8 decreases due to use, an external power source is connected, the battery is charged for a required period of time, and the battery is reused.

As mentioned above, the container 2 is attached to the floorboard 6 of the automobile 4.
Its side and top surfaces are covered with metal plates, and it has a sealed structure with respect to the driver's seat and passenger seat in the front of the automobile 4. A pair of ventilation ducts 10 and 12 are attached below the floor plate 6, the upper ends of which are connected to both the front and rear ends of the container 2, and the lower ends of which open under the floor outside the vehicle interior. The upper end of one ventilation duct 10 is attached to match the opening 14 of the floorboard 6 as shown in FIG.
Outside air taken in from an opening 16 formed at the lower end of one of the ventilation ducts 10 is introduced into the container 2. Further, the upper end of the other ventilation duct 12 is connected to the air intake port 10 in alignment with the opening 18 formed in the floorboard 6, as shown in FIG.
and this other ventilation duct 1
The inside of the container 2 and the outside of the vehicle are in communication via an opening 20 formed at the lower end of the container 2 . A fan 22 is provided in the opening 20, and when the fan 22 is operated, the air inside the container 2 can be sucked out and forcibly discharged. Furthermore, a net 2 is provided in the opening 16 of the ventilation duct 10.
4 is provided. This net 24 allows air to circulate, but is designed not to allow flame to pass through so that if an explosion or the like occurs inside the container 2, the flame will not blow out to the outside. The net 24 has net holding springs 26 on both sides thereof as shown in FIG. When attached to the opening 16 of the lattice, the net presser spring 26 applies a pressing force so that the net can be fixed without play. FIG. 5 is a partially enlarged view showing the locked state of the net presser spring 26.

As configured as described above, the automobile 4 according to the present invention can blow the air inside the container 2 to the outside by operating the net 24 even when the automobile is not moving or by operating the net 24 even when the automobile is stopped. Since it can be forcibly discharged, the temperature inside the container 2 does not rise. Therefore, it is possible to reduce inconveniences caused by a rise in temperature, such as a decrease in performance of the battery 8 and a risk of ignition of hydrogen gas emitted from the battery 8. Furthermore, a net 24 is provided in the opening 16.
, even if there is an explosion of hydrogen gas inside the container 2, flames will not be ejected from the ventilation duct 10, and there will be no damage to the outside of the vehicle 4. Since the inside of the vehicle is sealed, even if such an explosion were to occur, there would be no damage to the driver, passengers, or equipment inside the vehicle. Furthermore, since this net 24 is attached with a pressing force applied by a net pressing spring 26, it can be attached and detached by inserting and removing it from diagonally below, as shown by the imaginary line in FIG. can be done easily.

In the above example, the net 24 is attached only to the ventilation duct 10 side, but it may also be installed to the ventilation duct 12 side.
2, but may also be provided on the ventilation duct 10 side.

<Effects of the Invention> As described above, the electric vehicle according to the present invention has a sealed structure for the interior of the vehicle, and can prevent damage to the occupants and the interior of the vehicle in the unlikely event of an accident. The temperature rise inside the container caused by such a sealed structure is eliminated by introducing outside air into the container naturally through the opening of the ventilation duct that communicates with the outside of the vehicle, or by forced exhaust by a fan, and is eliminated during summer and other times. It is possible to prevent a decrease in battery performance due to temperature rise and the risk of ignition, and since the opening is provided with a net, it is possible to prevent flames from flowing outside in the event of a ignition. Furthermore, since the net is attached using a net holding spring, attachment and detachment can be facilitated.

[Brief explanation of the drawing]

1 to 6 are related to the present invention, and the first
Figure 2 is a side view of the automobile, Figure 2 is a perspective view of the ventilation duct, Figure 3 is a perspective view of the ventilation duct,
FIG. 4 is a perspective view of the net, FIG. 5 is a sectional view of the net presser spring, and FIG. 6 is a perspective view of the ventilation duct. In the drawings, 2 is a storage container, 4 is a car, 6 is a floorboard, 10 is a ventilation duct, 12 is a ventilation duct, 1
4, 16, 18, 20 are openings, 22 is a fan,
24 is a net, and 26 is a net holding spring.

Claims (1)

[Scope of Claims] 1. A storage container that hermetically stores a battery mounted in a vehicle interior, and a storage container whose upper end is connected to both the front and rear ends of the storage container, and whose lower end opens under the floor and which is connected to the inside of the storage container. a pair of ventilation ducts that communicate with the outside of the vehicle; a fan provided in at least one of the ventilation ducts to flow outside air into the storage container; and at least a lower end side of the ventilation duct that is not provided with the fan. An electric vehicle characterized by comprising an explosion-proof net attached to an opening of the electric vehicle. 2. A storage container for sealingly storing a battery mounted in a vehicle interior, and an upper end side connected to both front and rear ends of the storage container, and a lower end side opening under the floor to communicate the inside of the storage container with the outside of the vehicle interior. a pair of ventilation ducts, a fan provided in at least one of the ventilation ducts for causing outside air to flow into the storage container, and at least an opening at the lower end side of the ventilation duct where the fan is not provided. an explosion-proof net that is detachably attached to the opening at the lower end of the ventilation duct via the net-latching portion; and an explosion-proof net that is elastically deformably attached to the explosion-proof net and that An electric vehicle comprising: a net holding spring capable of fixing the explosion-proof net to a locking portion by a spring force.