JP2010140861A - Vehicle battery cooling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle battery cooling device capable of preventing liquid intruded into a duct from flowing to a blower side in case of slanting or circling of the vehicle. <P>SOLUTION: The vehicle battery cooling apparatus is provided with a suction duct 2, a blower 4, and an air intake duct 3 flowing the air taken in from the suction duct 2 to right-left directions of the vehicle and sending to the blower 4. The air intake duct 3 is provided with a water storing part 34 formed by downwardly swelling a passage part 32 flowing the air to right-left directions of the vehicle, and a separation wall part 35 for dividing the water storing part 34 into right-and-left directions of the vehicle, to store a liquid having entered inside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention belongs to the technical field of a vehicle battery cooling device for cooling a vehicle battery with air.

Conventionally, vehicle interior air is sucked from an air inlet provided in the vehicle interior, air is sent to a cooling fan through a duct, and air is sent from the cooling fan to a battery for cooling. The duct is provided with a convex portion for preventing liquid accidentally introduced from the suction port from flowing toward the cooling fan and reaching the battery (see, for example, Patent Document 1).
JP 2006-228556 A (page 2-9, full view)

  However, in the past, there has been a problem that when the vehicle is tilted or turns, the liquid that has entered the duct gets over the convex portion and flows to the cooling fan side.

  The present invention has been made paying attention to the above-mentioned problems. The purpose of the present invention is to prevent the liquid that has entered the duct from being blower side (cooling fan side) even when the vehicle is inclined or the vehicle is turning. It is intended to provide a battery cooling device for a vehicle that can be prevented from flowing to (1).

  In order to achieve the above object, according to the present invention, in a vehicle battery cooling apparatus for cooling a vehicle battery, an opening is positioned in the vehicle compartment, and a suction portion that takes air into the interior, and the vehicle is forced to air by driving. And an air intake duct for flowing air taken in from the suction portion in the left-right direction of the vehicle and sending it to the air supply means, and the intake duct stores liquid that has entered the interior. As described above, the present invention is characterized by comprising a water reservoir portion in which a portion flowing in the left-right direction of the vehicle is expanded downward, and a separation wall that divides the water reservoir portion in the left-right direction of the vehicle.

  Therefore, in the present invention, it is possible to prevent the liquid that has entered the duct from flowing to the blower side even when the vehicle is inclined or when the vehicle turns.

  Hereinafter, embodiments for realizing a battery cooling device for a vehicle according to the present invention will be described with reference to a first embodiment corresponding to the invention according to claim 1, a second embodiment corresponding to the invention according to claims 1 and 2, and a claim. A third embodiment corresponding to the first and third aspects of the invention and a fourth embodiment corresponding to the first, second and fourth aspects of the invention will be described.

First, the configuration will be described.
FIG. 1 is an explanatory diagram of a vehicle battery cooling device according to a first embodiment.
The vehicle battery cooling device 1 according to the first embodiment includes a suction duct 2, an intake duct 3, a blower 4, an air supply duct 5, a battery 6, and an exhaust duct 7.
The suction duct 2 is located behind the rear seat in the vehicle interior and is provided in a rear parcel R that partitions the interior and exterior of the vehicle interior. The suction port 21 at the upper end opens to the front of the vehicle in the vehicle interior, and the lower end of the trunk duct T Located inside.

The intake duct 3 has an upper end connected to the lower end of the suction duct 2, a portion for sending air slightly obliquely downward in the left-right direction from this portion, and a lower end directed downward therefrom. Details of the intake duct 3 will be described later.
The blower 4 has a suction port connected to the lower end portion of the suction duct 3 and has an air supply port in the lateral direction. Then, air is forcibly sucked from the suction port by driving the fan, and air is fed from the air supply port.
The air supply duct 5 includes an upper end portion having an opening for sucking air from the side, a portion for turning the U-shaped portion, and a lower end portion having an opening for sending air to the side below the upper end portion. . The upper end is connected to the air supply port of the blower 4.

The battery 6 is a battery used for driving the vehicle, and is a high-power battery that stores a voltage of several hundred volts. The battery 6 has a structure having a high-power battery inside the case, and includes a suction port at the upper part of the side surface and a discharge port at the lower part of the side surface below the suction port. Then, the air supply port of the air supply duct 5 is connected to this suction port.
The exhaust duct 7 is a duct in which the suction port is connected to the discharge port of the battery 6 and the discharge port of the duct is opened inside the trunk room T. The discharge port may be outside the trunk room T.

Next, the detailed structure of the intake duct 3 will be described.
FIG. 2 is a cross-sectional view of the intake duct 3 of the vehicle battery cooling device 1 according to the first embodiment.
The intake duct 3 includes an upper end connection portion 31, a passage portion 32, a lower end connection portion 33, and a water reservoir portion 34.
The upper end connection portion 31 is a duct portion that extends upward, and the upper end of the upper end connection portion 31 opens to the outside, and serves as a connection portion to the suction duct 2.
The passage portion 32 is a portion that forms an air passage extending in the left-right direction of the vehicle from the upper end connection portion 31 to the lower end connection portion 33.
The lower end connection portion 33 is a duct portion that extends downward, and opens the lower end to the outside, and becomes a connection portion to the blower 4.

The water reservoir 34 is a portion having a shape in which the lower surface of the passage 32 is expanded downward.
FIG. 3 is an explanatory diagram of the structure of the water reservoir 34 of the intake duct 3 according to the first embodiment.
As shown in FIG. 3, a separation wall 35 is provided in the water reservoir 34 of the intake duct 3. The separation wall portion 35 is a wall portion that reaches the bottom surface in the middle of the water reservoir portion 34, and divides the water reservoir portion 34 in the left-right direction of the vehicle, that is, the upstream / downstream direction.
The upstream side is the upstream portion 341 and the downstream side is the downstream portion 342. In addition, it is desirable that the separation wall 35 is integrally formed so that the lower surface of the intake duct 3 is recessed upward. The intake duct 3 is preferably divided, for example, in the front-rear direction of the vehicle, molded with resin, and joined together to reduce costs.

Next, the operation will be described.
[Operation for reliably containing liquid during tilting and turning]
FIG. 4 is an explanatory diagram illustrating a state where the liquid flows into the intake duct of the first embodiment up to a limit amount. FIG. 5 is an explanatory diagram showing the limit amount of liquid in a state where the liquid flows into the intake duct of the first embodiment and is inclined.
In the first embodiment, air that has been air-conditioned by a vehicle air conditioner is introduced into the passenger compartment, whereby the battery 6 is cooled and discharged to the trunk room T.
Since the electric blower 4 and the battery 6 are located in the air passage from the suction duct 2 to the exhaust duct 7, it is very difficult to flow the liquid that has entered the air passage from the intake duct 3 to the blower side, that is, downstream. It is not preferable.
In the vehicle battery cooling device 1 according to the first embodiment, since the suction port 21 of the suction duct 2 is located in the passenger compartment, the occupant inadvertently draws liquid from the suction port 21 by, for example, defeating a container containing the liquid. There are cases where it flows inside.

Therefore, in the vehicle battery cooling device 1 of the first embodiment, the water reservoir 34 is provided in the intake duct 3 so that the liquid that has entered the air passage from the suction port 21 of the suction duct 2 is retained.
Since the water reservoir 34 has a shape in which the lower surface of the passage 32 of the intake duct 3 is expanded downward, the liquid is stored in this portion so that the liquid does not flow to the blower side (see FIG. 4). However, the allowable limit amount is shown in FIG. 4).

A case where the vehicle inclines or turns while the liquid enters the inside of the intake duct 3 and is stored in the water reservoir 34 will be described below.
When the road surface is inclined in the left-right direction of the vehicle, or when one side in the left-right direction gets over something, the vehicle is inclined. In addition, when turning, the centrifugal force is applied to the liquid in addition to the sinking of the vehicle body on the outer peripheral side, so that the state is similar to the inclined state. Hereinafter, the inclined state will be described.

  When the vehicle is tilted in such a manner that the upstream side of the intake duct 3, that is, the upper end connection portion 31 is lowered, even if the liquid moves upstream, Be contained. However, in the case of an inclination that lowers the downstream side of the intake duct 3, that is, the lower end connection portion 33 side, if the liquid moves downstream beyond the water reservoir portion 34, it moves to the blower side.

In the first embodiment, since the separation wall portion 35 is provided in the water reservoir portion 34 and the water reservoir portion 34 is divided in the left-right direction of the vehicle to form the upstream portion 341 and the downstream portion 342, FIG. As shown, the upstream portion 341 and the downstream portion 342 each form a downwardly recessed portion that accommodates the liquid in an inclined state. Therefore, a volume capable of sufficiently storing the liquid is secured, and the liquid is prevented from moving to the blower side in the inclined state.
In particular, the inclination due to turning or riding is often short. Therefore, if the water reservoir 34 is divided by the separation wall 35, the movement of a small volume of liquid is restricted by the wall surface, which is effective.

Further, in order to clarify the operation of the first embodiment, the following description is added.
FIG. 6 is an explanatory view showing a state in which liquid flows into the intake duct. FIG. 7 is an explanatory view showing a state where the liquid flows into the intake duct and is inclined.
In order to keep the liquid in the intake duct 3, it is conceivable to form a water reservoir as shown in FIGS.
However, since there is a large difference between the limit amount for storing the liquid in the water reservoir portion shown in FIG. 6 and the limit amount for storing the liquid in the water reservoir portion in the inclined state shown in FIG. Liquid will flow to the side.

On the other hand, in the first embodiment, the separation wall portion 35 is provided in the water reservoir 34, and the water reservoir 34 is divided in the left-right direction of the vehicle to form the upstream portion 341 and the downstream portion 342. Therefore, the difference between the limit amount when the liquid is stored in the water reservoir 34 shown in FIG. 4 to the limit and the limit amount when the liquid is stored in the inclined water reservoir 34 shown in FIG. 5 is reduced. This is because the limit amount of the inclined state increases.
When the difference between the limit amounts is small, the stored liquid remains in the water reservoir 34 (the upstream portion 341 and the downstream portion 342) even if there is a transition between the inclined state and the non-inclined state.
As a result, the intake duct 3 of the vehicle battery cooling device 1 according to the first embodiment is advantageous in that the liquid is reliably contained when the vehicle is tilted and when the vehicle is turning.

Next, the effect will be described.
In the vehicle battery cooling device of the first embodiment, the effects listed below can be obtained.

  (1) In the vehicle battery cooling device 1 for cooling the battery 6, the suction port 21 is positioned in the vehicle compartment and the air is taken into the interior, and the blower 4 is forcibly sent to the battery 6 by driving. , Has an intake duct 3 for flowing air taken in from the suction duct 2 in the left-right direction of the vehicle and sending it to the blower 4. 32 is provided with a water reservoir portion 34 inflated downward and a separation wall portion 35 that divides the water reservoir portion 34 in the left-right direction of the vehicle. The liquid that has entered the inside can be prevented from flowing toward the blower 4.

Example 2 is an example in which a plurality of separation walls are provided in the water reservoir.
The configuration will be described.
FIG. 8 is a cross-sectional view of the intake duct 3 in the vehicle battery cooling device 1 of the second embodiment.
In the second embodiment, as shown in FIG. 8, a separation wall portion 35 is provided in the water reservoir 34 and is divided into an upstream portion 341 and a downstream portion 342 in the left-right direction of the vehicle. Further, the separation wall portion 8 is provided in the downstream portion 342 and is divided into a first downstream portion 81 and a second downstream portion 82. Therefore, in the second embodiment, the water reservoir 34 forms a liquid container divided into three parts.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.

The operation will be described.
In Example 2, since the water reservoir 34 is further divided into a plurality of parts, the capacity at the time of inclination is further increased. Further, by further dividing the capacity to be accommodated, the movement of the liquid in a short time is limited by the two separation walls 35 and 8.

Explain the effect. The vehicle battery cooling device of the second embodiment has the following effects in addition to the above (1).
(2) In the above (1), the intake duct 3 includes a plurality of separation walls 35 and 8 that divide the water reservoir 34 in the left-right direction of the vehicle. Therefore, when the vehicle is inclined or the vehicle turns. In addition, it is possible to more reliably prevent the liquid that has entered the inside of the intake duct 3 from flowing toward the blower 4.
Since other functions and effects are the same as those of the first embodiment, description thereof is omitted.

Example 3 is an example in which a top plate is provided in the water reservoir.
The configuration will be described.
FIG. 9 is a cross-sectional view of the intake duct 3 in the vehicle battery cooling device 1 of the third embodiment.
In the third embodiment, the top plate 9 is provided in the water reservoir 34 of the intake duct 3. The top plate 9 divides the water reservoir 34 and the upper passage portion 32, and forms a space for storing the liquid, that is, the upper surface of the limit position of the storage amount described in FIG. Accordingly, the top plate 9 is the upper surface of the upstream portion 341 and the downstream portion 342 of the water reservoir 34.
As shown in FIG. 9, the top plate 9 is provided with an opening that communicates with the upper passage portion 32 in the middle of the left-right direction of the vehicle of the upstream portion 341 of the water reservoir portion 34, thereby forming an opening portion 91. Further, the downstream portion 342 of the water reservoir 34 is provided with an opening communicating with the upper passage portion 32 in the middle in the left-right direction of the vehicle. The openings 91 and 92 are long in the front-rear direction of the vehicle, and are formed to have lengths that reach both ends of the upstream portion 341 and the downstream portion 342 of the water reservoir 34 in the front-rear direction of the vehicle, respectively.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.

The operation will be described.
FIG. 10 is an explanatory view showing a state where the liquid flows into the intake duct and is inclined.
In the third embodiment, the liquid that has entered the intake duct 3 passes through the openings 91 and 92 of the top plate 9 provided in the reservoir 34 of the intake duct 3, and the upstream portion 341 and the downstream portion 342 of the reservoir 34. To invade.
Then, as shown in FIG. 10, in the inclined state, the top plate 9 forms a portion for storing the liquid. Therefore, the upstream portion 341 and the downstream portion 342 of the water reservoir 34 are also provided with the liquid even in the largely inclined state. So that it does not flow downstream. Alternatively, an amount closer to the limit amount, that is, a large amount of liquid is stored in an inclined state.
Further, even when the vehicle is greatly swung up and down in addition to turning or turning for a short time, the top plate 9 ensures that the liquid is reliably transferred to the upstream portion 341 and the downstream portion 342 of the water reservoir 34. stop.

Explain the effect. The vehicle battery cooling device of the third embodiment has the following effects in addition to the above (1).
(3) In the above (1), since the intake duct 3 includes the top plate 9 that closes a part of the upper part of the water reservoir 34, a space for accommodating the top plate 9 is formed even when the vehicle is largely inclined. In this way, the allowable limit of tilting is increased, or the limit amount of liquid that can be tilted is increased, so that the liquid that has entered the inside of the intake duct 3 is further prevented from flowing to the blower 4 side. can do. Further, it is possible to prevent the liquid that has entered the inside of the intake duct 3 from flowing to the blower 4 side even when the vehicle is greatly shaken up and down.
Since other functions and effects are the same as those of the first embodiment, description thereof is omitted.

The fourth embodiment is an example in which a separation wall portion that divides the water reservoir portion in the vehicle front-rear direction and the vehicle left-right direction is provided.
The configuration will be described.
FIG. 11 is a cross-sectional perspective view of the intake duct 3 in the vehicle battery cooling device 1 of the third embodiment. FIG. 12 is a perspective view of the separation wall portion in the third embodiment.
In the fourth embodiment, as shown in FIG. 12, the separation wall 10 is provided separately from the intake duct 3.
The separation wall portion 10 includes six left and right separation wall portions 101 that divide the water reservoir portion 34 in the left-right direction of the vehicle, and two front and rear separation wall portions 102 that divide the water reservoir portion 34 in the front-rear direction of the vehicle. is there. And it is the structure which combined the six right-and-left separation wall part 101 and the two front-and-back separation wall parts 102 in the grid | lattice form.
As a result, the water reservoir 34 of the intake duct 3 is divided into a plurality of substantially rectangular parallelepiped shapes in the front-rear and left-right directions. This is a divided portion 11. In the fourth embodiment, 21 divided portions 11 are provided.

The separation wall 10 has a left and right separation wall 101 and a front and rear separation wall 102 formed in a plate shape, and the left and right separation wall 101 is formed with a notch for combining with the front and rear separation wall 102. You may make it form the grid | lattice form by forming the notch for combining with the separation wall part 102 with the right-and-left separation wall part 101. FIG. Moreover, you may form in a grid | lattice form by integral molding.
Since other configurations are the same as those of the first embodiment, description thereof is omitted.

The operation will be described.
In the fourth embodiment, the separation wall 10 is inserted into the intake duct 3 from the upper end connection portion 31 of the intake duct 3. Then, the separation wall 10 inserted inside is placed on the water reservoir 34. In that case, fixing such as adhesion may be performed. Further, the fitting may be relatively tight due to dimensional tolerances.
In this way, the separation wall 10 can be easily assembled to the intake duct 3 by retrofitting.

And in Example 4, since the separation wall part 10 is divided | segmented into the some division part 11, since each of the 21 division parts 11 accommodates a liquid at the time of inclination, more liquid can be accommodated. . This means that even if the vehicle has a large inclination, the liquid is reliably contained and does not flow to the blower side. Further, more liquid is accommodated at the time of tilting and does not flow to the blower side.
In the fourth embodiment, the water reservoir 34 is also divided in the front-rear direction of the vehicle by the front-rear separation wall 102, so that the liquid is reliably accommodated even when the vehicle is inclined in the front-rear direction. Thereby, it is made more certain not to flow to the blower side.

Furthermore, the six left and right separation wall portions 101 serve as wall surfaces that restrict movement for short-time movement of the liquid, such as during turning. In addition, the front / rear separation wall 102 serves as a wall that restricts movement when the vehicle is suddenly started, suddenly braked, or tilted forward and backward for a short time.
Considering a pattern in which the liquid flows to the blower side, a pattern in which the liquid is moved so as to rotate in the water reservoir 34 or a pattern in which the liquid is moved in an oblique direction of the vehicle can be considered. In such a case, restricting the liquid from moving back and forth leads to preventing such a pattern. Therefore, adding the restriction of the movement of the front and rear liquids to the restriction of the movement of the right and left liquids synergistically acts to ensure that the liquid is contained in the water reservoir 34.
Since other functions and effects are the same as those of the first embodiment, description thereof is omitted.

Explain the effect.
The vehicle battery cooling device of the third embodiment has the following effects in addition to the above (1) and (2).
(4) In the above (1) or (2), the air intake duct 3 is separated from the left and right separation wall portion 101 so as to form a divided portion 11 that divides the water reservoir portion 34 in the vehicle front-rear direction and the left-right direction. Since the grid-like separation wall portion 10 including the wall portion 102 is provided, the inclination of the vehicle in the front-rear direction and the movement of the liquid are restricted, and the liquid is reliably accommodated in the water reservoir 34 and enters the intake duct 3. It is possible to prevent the liquid from flowing to the blower 4 side.
Since other functions and effects are the same as those of the first embodiment, description thereof is omitted.

  As mentioned above, although the vehicle battery cooling device of the present invention has been described based on the first to fourth embodiments, the specific configuration is not limited to these embodiments, and each claim of the claims Design changes and additions are permitted without departing from the spirit of the invention according to the paragraph.

For example, in the first embodiment, the openings 91 and 92 of the top plate 9 are formed to extend in the front-rear direction of the vehicle, but may be formed in a cross shape or the like so that liquid can be easily stored.
Further, for example, in Example 1, the blower is disposed above the battery. However, as shown in FIG. 13, the blower forcibly supplies air, so that the battery and the blower are positioned on the same surface. You may make it provide.
Further, for example, in the first embodiment, forced air is supplied by the blower, but the blower fan may be used or another fan may be used. It is desirable that the air be efficiently sent to the battery. Moreover, since it is located behind the rear seat, it is desirable that it be quiet.

It is explanatory drawing of the battery cooling device for vehicles of Example 1. FIG. 1 is a cross-sectional view of an intake duct 3 of a vehicle battery cooling device 1 of Embodiment 1. FIG. 3 is a structural explanatory diagram of a water reservoir of the intake duct 3 of Embodiment 1. FIG. It is explanatory drawing which shows the state which the liquid flowed into the air intake duct of Example 1 to the limit amount. It is explanatory drawing which shows the limit amount of the liquid of the state which the liquid flows in into the intake duct of Example 1, and inclines. It is explanatory drawing which shows the state which the liquid flowed into the intake duct. It is explanatory drawing which shows the state which the liquid flowed into the intake duct and inclined. It is sectional drawing of the air intake duct in the battery cooling device for vehicles of Example 2. FIG. 6 is a cross-sectional view of an intake duct 3 in a vehicle battery cooling device 1 of Embodiment 3. FIG. It is explanatory drawing which shows the state which the liquid flowed into the intake duct and inclined. 6 is a cross-sectional perspective view of an intake duct in a vehicle battery cooling device of Embodiment 3. FIG. 6 is a perspective view of a separation wall portion in Embodiment 3. FIG. It is explanatory drawing which shows the other example of the battery cooling device for vehicles.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle battery cooling device 2 Suction duct 21 Suction port 3 Intake duct 31 Upper end connection part 32 Passage part 33 Lower end connection part 34 Reservoir part 341 Upstream part 342 Downstream part 35 Separation wall part 4 Blower 5 Air supply duct 6 Battery 7 Exhaust Duct 8 Separation Wall 81 First Downstream Portion 82 Second Downstream Portion 9 Top Plate 91 Opening 92 Opening 10 Separation Wall 101 101 Left / Right Separation Wall 102 Front / Rear Separation Wall 11 Dividing Part C Cab R R Rear Parcel T Trunk Room W Liquid

Claims (4)

In a vehicle battery cooling device for cooling a vehicle battery,
A suction part for positioning the opening in the passenger compartment and taking air into the interior;
Air supply means for forcibly sending air to the vehicle battery by driving;
An air intake duct for flowing air taken in from the suction part in the left-right direction of the vehicle and sending it to the air supply means;
Have
The intake duct is
A water reservoir that bulges downward to flow in the left and right direction of the vehicle so as to collect liquid that has entered the interior;
A separation wall that divides the water reservoir in the left-right direction of the vehicle;
With
A vehicle battery cooling device. The vehicle battery cooling device according to claim 1,
The intake duct is
A plurality of separation walls that divide the water reservoir portion in the left-right direction of the vehicle;
A vehicle battery cooling device. In the vehicle battery cooling device according to claim 1 or 2,
The intake duct includes a top plate portion that closes a part of the upper portion of the water reservoir,
A vehicle battery cooling device. In the vehicle battery cooling device according to claim 1 or 2,
The intake duct is
A grid-like separation wall that divides the water reservoir in the front-rear direction and the left-right direction of the vehicle,
A vehicle battery cooling device.

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