JP6237259B2 - Car with battery pack - Google Patents

Description

  The present invention relates to an automobile equipped with a battery pack.

  In the following Patent Document 1, a drainage plug (water drain valve) for discharging a liquid such as water on the vehicle interior side to the vehicle exterior is attached to the lower part of the vehicle body.

JP 2005-14764 A

  When the battery pack is mounted on the floor panel, liquids such as water may enter the floor panel from the vehicle floor side or the vehicle interior side and the battery pack may get wet, resulting in a functional failure. In order to prevent the battery pack mounted on the floor panel from getting wet, it is desirable to install a drain plug on the floor panel.

  However, if the drainage plug is exposed from the outside of the vehicle as in Patent Document 1, the drainage plug may be damaged by an input from outside the vehicle such as road surface interference.

  An object of this invention is to protect a drainage plug with respect to the input from the vehicle exterior, when installing a drainage plug in the floor panel in which the battery pack is mounted.

  The vehicle equipped with the battery pack according to the present invention employs the following means in order to achieve the above-described object.

An automobile equipped with a battery pack according to the present invention includes a battery pack disposed on a floor panel, and a drainage plug installed on the floor panel. The drainage plug is disposed at a position facing the space on the floor panel, a drainage hole is formed in the reinforcing member, and the drainage plug is located below the vehicle on the floor panel. arranged on the floor digging portion recessed to the side, the floor digging portion drainage plug is arranged, Ri liquid intrusion can der the passenger compartment, drainage plugs, the flow of liquid from the vehicle interior to the vehicle exterior The liquid in the vehicle compartment is present at a location other than the duct that discharges the gas released from the battery pack to the outside. It is summarized as infiltration can der Rukoto from above the drainage plug.

  According to the present invention, the drainage plug can be protected by the reinforcement member against the input from the outside of the vehicle by installing the drainage plug at a position facing the space between the reinforcement member and the floor panel. .

It is a figure which shows the structural example seen from the vehicle rear side of the motor vehicle carrying the battery pack which concerns on embodiment of this invention. It is a figure which shows the structural example seen from the vehicle left side of the motor vehicle carrying the battery pack which concerns on embodiment of this invention. It is a figure which shows the structural example seen from the vehicle left side of the motor vehicle carrying the battery pack which concerns on embodiment of this invention. It is a figure which shows the example of a structure and installation position of a drainage plug. It is a figure which shows the example of the installation position of a drainage plug. It is a figure which shows the example of a structure and installation position of a drainage plug.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  1-3 is a figure which shows schematic structure of the motor vehicle carrying the battery pack which concerns on embodiment of this invention. FIG. 1 shows a configuration example of the floor viewed from the rear side of the vehicle, FIG. 2 shows a configuration example of the right floor viewed from the left side of the vehicle, and FIG. 3 shows a configuration example of the left floor viewed from the left side of the vehicle. Both ends of the floor panel 12 in the vehicle left-right direction are joined to the left rocker panel 14L and the right rocker panel 14R extending in the vehicle front-rear direction by welding. The upper surface of the floor panel 12 faces the vehicle interior. Cross members 16-1 to 16-3 extending in the left-right direction of the vehicle are joined to the floor panel 12 by welding. The cross members 16-1 to 16-3 are spaced apart from each other in the vehicle front-rear direction, the cross member 16-2 is positioned on the vehicle front side of the cross member 16-3, and the cross member 16-1 is the cross member 16-. 2 on the front side of the vehicle. A floor tunnel portion 12T swelled to the upper side of the vehicle is formed at the center portion of the floor panel 12 in the vehicle left-right direction so as to extend in the vehicle front-rear direction. Further, the floor panel 12 is formed with floor digging portions 12L and 12R which are recessed on the vehicle lower side. In the left-right direction of the vehicle, the floor digging portion 12L is formed at a position between the floor tunnel portion 12T and the left rocker panel 14L, and the floor digging portion 12R is formed at a position between the floor tunnel portion 12T and the right rocker panel 14R. . Under the floor panel 12 (floor digging portions 12L and 12R), underlean hoses (reinforcing members) 18L and 18R extending in the vehicle front-rear direction are provided on the underlean hoses 18L and 18R and below the floor digging portions 12L and 12R. Are joined by welding in a state in which spaces 17L and 17R are formed respectively.

  A battery pack 24 is mounted on the floor dug portion 12R. The battery pack 24 includes a battery main body 24-1 and an electronic device 24-2, and the battery main body 24-1 and the electronic device 24-2 are connected via a wire harness to form a circuit. A flange plate 27 is provided on the upper surface of the case of the battery pack 24 (battery main body 24-1 and electronic device 24-2), and the flange plate 27 and the cross members 16-1 to 16-3 are bolts 29-1 to 29-29. The battery pack 24 (the battery main body 24-1 and the electronic device 24-2) is fixed to the vehicle body in a state where the battery pack 24 is floated from the floor panel 12 by being respectively fastened by -3.

  A battery pack cooling device 26, which is a battery pack related component, is mounted on the floor dug portion 12L. The battery pack cooling device 26 includes a cooling blower 26-1 and ducts 26-2 and 26-3, and cools the battery pack 24 by supplying cooling air to the battery pack 24. The battery pack cooling device 26 (cooling blower 26-1 and ducts 26-2, 26-3) is suspended and fixed on the lower surface of the protective panel 28, and the protective panel 28 and the cross members 16-2, 16-3 are bolted. By being fastened by 29-4 and 29-5, respectively, the battery pack cooling device 26 is fixed to the vehicle body in a state of floating from the floor panel 12. In addition, it is also possible to mount components other than the battery pack cooling device 26, such as a battery pack charge / discharge circuit, as the battery pack-related components on the floor digging portion 12L.

  A floor carpet 30 is placed on the battery pack 24 and the protection panel 28 so as to cover them. The case of the battery pack 24 (the battery main body 24-1 and the electronic device 24-2) and the protection panel 28 have sufficient rigidity with respect to the load from the vehicle interior, and also serve to receive the load from the vehicle interior. . The battery pack 24 and the battery pack cooling device 26 are not positioned directly below the notch, the hole, and the mating part of the interior part with the floor carpet 30.

  As shown in FIGS. 1, 4, and 5, a drain plug 40 is installed on the floor panel 12 (floor digging portion 12 </ b> R). In the present embodiment, the drainage plug 40 is disposed at a position on the underlean hose 18R in the floor digging portion 12R and is disposed at a position facing the space 17R. Further, a drain hole 18H is formed in the underlean hose 18R. In the example of FIG. 4, the drain hole 18H is formed so as to be shifted from the drain plug 40 in the vehicle front-rear direction (the direction in which the underlean hose 18R extends), for example, the vehicle rear side.

  A configuration example of the drain plug 40 is shown in FIG. In the example of FIG. 4, when no liquid such as water is accumulated in the drain plug, the drain port 43 is closed by the flap 42 being closed by the reaction force of the spring 41. On the other hand, when a predetermined amount of liquid such as water is accumulated in the drain plug through the mesh (filter) 44 provided at the drain plug inlet, the flap 42 is opened by the pressure of the liquid (state shown by the broken line in FIG. 4). By opening the drainage port 43, as shown by an arrow A in FIG. 4, the liquid accumulated in the drainage plug is discharged out of the passenger compartment through the drainage port 43 and the drainage hole 18H. However, the drain plug 40 has a check valve function that blocks the flow of liquid from the outside of the vehicle compartment to the inside of the vehicle compartment while allowing the flow of liquid from the inside of the vehicle compartment to the outside of the vehicle compartment, for example. Various configurations other than the examples can be applied.

  For example, when liquid such as water is spilled in the passenger compartment, ice or snow brought into the passenger compartment melts, or rainwater enters the passenger compartment due to a bad weather strip of the doors, etc., the liquid such as water will flow into the floor panel 12. Infiltrate up. If a liquid such as water accumulates in the floor digging portion 12R and the battery pack 24 mounted on the floor digging portion 12R gets wet, a functional failure may occur. On the other hand, in the present embodiment, liquid such as water accumulated in the floor digging portion 12R can be discharged out of the passenger compartment by the drainage plug 40. Therefore, it is possible to prevent a functional failure due to flooding of the battery pack 24 mounted on the floor dug portion 12R.

  However, if the drainage plug 40 is installed in an exposed state with respect to the outside of the vehicle, the drainage plug 40 may be damaged when it interferes with the road surface. On the other hand, in this embodiment, since the drainage plug 40 is disposed at a position facing the space 17R on the underlean hose 18R, an input due to road surface interference can be received by the underlean hose 18R. Can be prevented from being damaged. In addition, even if the input due to road surface interference enters excessively, the floor panel 12 to which the drain plug 40 is attached is deformed so that the drain plug 40 is not affected. In addition, even the pebbles (chipping) and the like that the tire rolls up when the vehicle travels can prevent the drain plug 40 from being directly hit by the under-lean hose 18R, and the drain plug 40 can be prevented from being damaged. Furthermore, it is possible to prevent icing on the drain plug 40 by the under-lean hose 18R even with respect to snow, ice, or the like that the tire rolls up when traveling on a snowy road, and the drain plug 40 can be prevented from being blocked. Moreover, it is possible to prevent the underwater hose 18R from directly hitting the drainage plug 40 with respect to the high-pressure water ejected from the car wash nozzle at the time of car washing or the like, thereby preventing the drainage plug 40 from being damaged or detached. it can. Thus, according to the present embodiment, the drain plug 40 can be protected by the underlean hose 18R against input from the outside of the vehicle, such as road surface interference, chipping, icing, and high pressure water from the car wash machine nozzle. it can.

  In the present embodiment, for example, as shown in FIG. 6, the drain hole 18 </ b> H can be formed directly below the drain plug 40. In the configuration example shown in FIG. 6 as well, the drain plug 40 can be protected by the underlean hose 18R against the input from the outside of the vehicle.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to such embodiment at all, and it can implement with a various form in the range which does not deviate from the summary of this invention. Of course.

  12 floor panel, 12L, 12R floor digging part, 12T floor tunnel part, 14L left rocker panel, 14R right rocker panel, 16-1 to 16-3 cross member, 17L, 17R space, 18H drain hole, 18L, 18R under Lean hose, 24 battery pack, 24-1 battery main body, 24-2 electronic device, 26 battery pack cooling device, 26-1 cooling blower, 26-2, 26-3 duct, 27 flange plate, 28 protective panel, 29- 1-29-5 bolts, 30 floor carpet, 40 drain plug, 41 spring, 42 flap, 43 drain, 44 mesh.

Claims (1)

A battery pack arranged on the floor panel;
Drain plugs installed on the floor panel;
With
The reinforcing member is joined to the bottom of the floor panel in a state where a space is formed between the reinforcing member and the floor panel.
The drainage plug is disposed at a position facing the space in the floor panel, and a drainage hole is formed in the reinforcing member.
The drainage plug is arranged in the floor digging part recessed in the vehicle lower side in the floor panel,
The floor digging portion drainage plug is arranged, Ri infiltration can der liquids cabin,
The drainage plug allows the liquid to flow from the vehicle interior to the vehicle exterior while blocking the liquid flow from the vehicle interior to the vehicle interior,
The liquid in the passenger compartment exists in places other than the duct that discharges the gas released from the battery pack to the outside.
Vehicle interior of the liquid, Ru infiltration can der from above the drainage plug, automobile equipped with a battery pack.

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