KR20140093123A - Electric vehicle - Google Patents

Abstract

An electric vehicle according to an embodiment of the present invention comprises a battery pack including an air inlet which includes a battery cell unit in the inner side thereof and makes air to flow in, in order to cool the battery cell unit; and an air outlet in which the air for cooling the battery cell unit is discharged. The electric vehicle further comprises an intake duct which is connected to the air inlet and guides the air for cooling the battery cell unit to the air inlet; a discharge duct which is connected to the air outlet, guides the air discharged to the air outlet, and having a discharge hole which penetrates the vehicle body and is exposed to the outside; a moisture sensing unit which senses moisture inserted into the discharge hole of the discharge duct; a control unit which outputs a control signal based on an input signal of the moisture sensing unit; an actuator which is controlled by the control signal outputted from the control unit; and a regulation unit which regulates the discharge hole of the discharge duct based on the operation of the actuator.

Description

Electric vehicle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly to an electric vehicle having a battery pack for supplying power necessary for driving the vehicle.

A car is a means of transporting passengers and cargo on the road by producing power from its own engine and delivering it to the wheels. A car can be divided into a body, which forms a large appearance, and a chassis, in which various devices are connected to each other. The chassis includes the main devices such as power transmission devices, steering devices, suspension devices, and braking devices, as well as automobile engines that are the driving force of driving.

The engine is the driving force that drives the car. Most automotive engines are four-stroke internal combustion engines. A four-stroke internal combustion engine is the most common example of a reciprocating engine with an internal combustion engine ending one cycle by four strokes of suction, compression, explosion, and exhaust. The internal combustion engine, which mainly uses volatile fuel, obtains the kinetic energy by directly using the heat energy generated when the fuel is mixed with the oxygen in the air to be completely burned and then burned.

Such an internal combustion engine using volatile fuels has caused an environmental pollution caused by exhaust gas and a depletion of petroleum resources, and an electric vehicle, in which electricity is moved by power, has emerged as an alternative.

An electric vehicle (EV) is an automobile which obtains power by driving an AC or DC motor using mainly a battery, and is mainly classified into a battery-dedicated electric vehicle and a hybrid electric vehicle. A battery- And the hybrid electric vehicle operates the engine to charge the battery by generating electric power, and by using the electric power, the electric motor can be driven to move the car.

The hybrid electric vehicle can be classified into a serial system and a parallel system. In the serial system, the mechanical energy output from the engine is converted into electrical energy through the generator, and the electrical energy is supplied to the battery or the motor. This is a concept that adds an engine and a generator to increase the mileage of an existing electric vehicle. The parallel method can move the car with battery power. The two motors (gasoline or diesel) Depending on the driving conditions, the parallel system can drive the vehicle at the same time as the engine and the motor.

However, since such an electric vehicle drives the system only by the power of the battery provided as one, there is a problem that the output and the traveling distance are insufficient as compared with the engine driving system. Therefore, it is necessary to improve the output and travel distance of the electric vehicle by providing a plurality of motors and batteries in the electric vehicle and different driving methods of the plurality of motors according to the predetermined driving mode.

On the other hand, when a plurality of batteries are used, there is a problem that the product is damaged due to heat generated from the battery, and the electric efficiency is lowered.

In addition, an air circulation system is used to discharge heat generated from the battery, and harmful gas generated when the battery cell is damaged enters into the room.

In addition, there is a problem in that when moisture from the outside flows on the duct of the air circulation system, the battery cell is damaged or malfunctions occur.

The electric vehicle according to the related art may contain harmful substances in the air sucked from the outside of the battery pack in order to cool the battery pack and the safety and durability of the battery pack may be lowered due to such harmful substances.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric vehicle in which foreign matter in the air for cooling a battery pack is minimally introduced into a battery pack.

Another object of the present invention is to provide an electric vehicle in which the air cooled by the battery pack is prevented from flowing into the room again.

It is also an object of the present invention to provide an electric vehicle in which moisture is prevented from flowing into the battery pack.

In order to achieve the above object, an electric vehicle according to an embodiment of the present invention includes a battery cell unit, an air intake port through which air for cooling the battery cell unit flows, and air cooled by the battery cell unit are discharged A suction duct which communicates with the air intake port and is guided to the air intake port by air for cooling the battery cell unit, and a guide duct which communicates with the air discharge port and guides the air discharged to the air discharge port A discharge duct in which the discharge port passes through the vehicle body and is exposed to the outside, an intermittent part for interrupting the discharge port of the discharge duct, a moisture sensor for sensing the moisture flowing into the discharge port of the discharge duct, A control unit for outputting a control signal based on the control signal outputted from the control unit, It includes an actuator that controls the opening and closing portion intermittent group.

In addition, the intermittent portion may include a door rotatably connected to a discharge port of the discharge duct.

In addition, the moisture sensor may be disposed adjacent to the discharge port of the discharge duct.

In addition, the discharge port of the discharge duct may be exposed to the outside through a rear opening formed behind the vehicle body.

The discharge duct is provided with an exhaust fan unit for flowing air in the discharge duct. The discharge duct communicates with the air discharge port. The first discharge duct is guided by the exhaust fan unit. And a second discharge duct communicating with the unit and guided outside the vehicle body.

And a filter disposed in the suction duct to filter foreign substances in the air flowing toward the air inlet.

Further, the suction duct may be formed with a communication hole portion communicating with the air inlet, and a filter seat portion on which the rim of the filter is seated.

Further, the suction duct may be provided with a mesh on which the filter is mounted.

The electric vehicle may further include a suction duct fastening member for fastening the suction duct to the battery pack.

In addition, the suction duct may include a lower plate portion on which the rim of the filter is seated and a communication hole portion communicating with the air intake port, and a rim protruding upward from the lower plate portion.

The lower plate may be formed with a fastening hole for fastening the suction duct fastening member.

In addition, the filter may be formed with a relief groove portion that avoids the suction duct fastening member.

Also, the battery pack may be installed on the lower side of the vehicle body, and the vehicle body may be provided with an opening through which the air of the vehicle room can be discharged downward, and the suction duct may be arranged to communicate with the opening.

Further, the filter may be formed smaller than the opening.

The apparatus may further include a discharge duct fastening member for fastening the discharge duct to the vehicle body.

In the electric vehicle according to the present invention configured as described above, the foreign matter in the air is filtered by the filter installed in the suction duct, and the air filtered by the foreign substance is sucked into the battery pack. Thus, damage to the battery cell unit due to foreign substances can be prevented, It has the advantage of enhancing safety and durability.

In addition, since the air exchanged with the battery pack is discharged directly to the outside, harmful gas does not enter the room even when the battery cell is broken.

Further, in order to prevent the ingress of noxious gas into the room, even when the discharge port is exposed to the outside, the inflow of moisture from the outside can be prevented by the operation of the intermittent portion.

1 is an exploded perspective view of a battery pack according to an embodiment of the present invention,
2 is a perspective view of a battery pack according to an embodiment of the electric vehicle according to the present invention,
Fig. 3 is an enlarged perspective view of the suction duct shown in Fig. 2 when the suction duct is separated from the battery pack,
FIG. 4 is a perspective view illustrating a battery pack mounted on a vehicle body according to an embodiment of the present invention; FIG.
5 is a control block diagram of an electric vehicle according to an embodiment of the present invention.
6 is an enlarged perspective view showing a discharge port portion of a discharge duct according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" Can be used to easily describe the correlation of components with other components. Spatially relative terms should be understood as terms that include different orientations of components during use or operation in addition to those shown in the drawings. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises "and / or" comprising ", as used herein, unless the recited component, step, and / or step does not exclude the presence or addition of one or more other elements, steps and / I never do that.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

In the drawings, the thickness and the size of each component are exaggerated, omitted, or schematically shown for convenience and clarity of explanation. Also, the size and area of each component do not entirely reflect actual size or area.

Further, the angles and directions mentioned in the description of the structure of the embodiment are based on those shown in the drawings. In the description of the structures constituting the embodiments in the specification, reference points and positional relationships with respect to angles are not explicitly referred to, reference is made to the relevant drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the drawings for explaining an electric vehicle according to embodiments of the present invention.

1 is an exploded perspective view of a battery pack according to an embodiment of the present invention before the battery pack is installed in a vehicle body.

Referring to Fig. 1, an electric vehicle according to the present embodiment includes a vehicle body 2, wheels, a motor for generating driving force for rotating the wheels, and a battery pack 400 for supplying power necessary for driving the motor .

The vehicle body 2 includes a front body 100 on which components of a motor and a power transmission system are mounted, a central body 200 on which a rider can sit and sit, a rear body 300 ). ≪ / RTI >

The vehicle body 2 makes a closed space and arranges various devices therein, accommodates occupants and cargoes, and opens and closes parts of the vehicle body 2, thereby facilitating access to passengers and cargoes and maintenance of various devices.

The vehicle body 2 can be in the shape of an external shape of the automobile in shape.

The front vehicle body 100 may be provided with components of a power transmission system such as a motor and a transmission.

The front body 100 may be provided with a steering device for adjusting the direction of the rotation axis of the front wheel to change the traveling direction of the electric vehicle and a front suspension device for preventing the vibration of the road surface from directly touching the vehicle body.

The front vehicle body 100 is damaged when it is impacted by an accident or the like so that a large impact is not transmitted to the vehicle body as it absorbs the impact.

Since the central body 200 is a place where most of the passengers, such as passengers, are boarded, the central space becomes larger as the internal space becomes larger.

The central body 200 includes a floor 210 constituting the bottom surface of the electric vehicle and a central tunnel 230 formed at the center of the floor 210.

The floor 210 is a floor surface in a vehicle room and has a large area.

The center tunnel 230 is formed by being drawn upward, and is formed long in the longitudinal direction. The central tunnel 230 may be integrally formed with the floor 210, or may be separately formed and joined by welding or the like.

The rear body 300 may be connected to a trunk for storing spare tires and other objects, and a trunk door for covering the trunk.

The rear vehicle body 300 may be provided with a rear wheel suspension device so that the vibration of the road surface does not directly come into contact with the vehicle body.

The battery pack 400 may be installed on at least one of the center body 200 and the rear body 300 of the body 2. [

The battery pack 400 may be installed on the lower side of the vehicle body 2. When the battery pack 400 is installed on the centerbody 200 of the vehicle body 2, The rear body 300 may be provided on the lower side or trunk of the rear body 300.

FIG. 2 is a perspective view of a battery pack in an embodiment of the electric vehicle according to the present invention, FIG. 3 is an enlarged perspective view of the suction duct shown in FIG. 2 when the suction duct is separated from the battery pack, FIG. 5 is a control block diagram of an electric vehicle according to an embodiment of the present invention, and FIG. 6 is an enlarged perspective view illustrating a discharge port portion of the discharge duct according to the present invention.

The battery pack 400 includes at least one battery cell unit (not shown) for supplying power necessary for driving the motor.

The battery pack 400 may include a battery case 410 for protecting at least one battery cell unit.

A plurality of battery cell units may be stacked, and a plurality of groups of the plurality of stacked battery cell units may be arranged such that a plurality of groups are spaced apart from each other in the back-and-forth direction or the left-right direction.

The battery case 410 includes a carrier 412 on which a plurality of battery cell units are disposed, a battery cover 412 which is coupled to the carrier 412 and forms a receiving space for the battery cell unit together with the carrier 412, (414).

The battery pack 400 can be fastened to the vehicle body 2 by the fastening member such as a bolt and the battery cover 414 can be fastened to the carrier 412 with a fastening member such as a bolt.

The battery pack 400 is cooled by the air-cooling method in which air flows into the battery pack 400 to cool the battery cell unit in an air-cooling manner and is discharged to the outside.

  The battery pack 400 includes an air inlet 420 through which the air for cooling the battery cell unit flows and an air outlet 422 through which the air that has cooled the battery cell unit is discharged.

The battery pack 400 may have an air inlet 420 and an air outlet 422 formed in the battery case 410 and may be formed in the battery cover 414.

The electric vehicle can air the outside of the electric vehicle into the battery pack 400 to air-cool the battery cell unit, air in the vehicle room can be introduced into the battery pack 400 to air-cool the battery cell unit, It is possible to let air in the battery pack 400 flow into the battery pack 400 to air-cool the battery cell unit.

It is preferable that the electric vehicle is brought into contact with the air with high cleanliness as much as possible to the battery cell unit and it is preferable that the air of the vehicle room is introduced into the battery pack 400 because the outdoors and the vehicle room among the vehicle room and the trunk can be cleanest, Hereinafter, it will be explained that the air of the vehicle is introduced into the battery pack 400. [

It is preferable that the vehicle body 2 is formed with an opening 212 through which the air of the vehicle room can be discharged to the lower side and the opening 410 is formed to pass through the floor 210 in the vertical direction.

The electric vehicle includes a suction duct (430) communicated with the air suction port (420) and guided to the air suction port (420) for cooling the battery cell unit; A discharge duct 440 communicating with the air discharge port 422 and guided through the air discharge port 422; And a filter 450 disposed in the suction duct 430 to filter foreign substances in the air flowing toward the air intake port 420.

The suction duct 430 is disposed so as to communicate with the opening 212 and has a communication hole portion 431 communicating with the air inlet 420.

The suction duct 430 communicates the vehicle compartment with the battery pack 400 and is disposed between the vehicle body 2 and the battery pack 400.

 The suction duct 430 is formed with a filter seat portion 432 on which the rim of the filter 450 is seated.

 The suction duct 430 may be provided with a mesh 433 on which the filter 450 is mounted.

The filter 450 is supported on the filter receiving portion 432 with a rim and the portion facing the communication hole 431 is seated on the mesh 433 and supported. The filter 450 is supported by the filter seating portion 432 and the mesh 433 so that it is not bent or swept toward the battery pack 400 when the air flows toward the battery pack 400.

  The suction duct 430 may include a lower plate portion 434 and a rim portion 435 protruding upward from the lower plate portion 434. [

The lower plate portion 434 is formed with a communication hole portion 431 and the rim of the filter 450 is seated and the peripheral portion of the communication hole portion 431 can be the filter receiving portion 432.

The filter seating part 432 may be formed as a rim of the filter 450 and may protrude upward from the lower plate part 434.

The rim portion 435 surrounds the rim of the filter 450 and forms a receiving space for the filter 450.

The suction duct 430 may be formed to have a larger overall size than the opening 212.

The electric vehicle may further include a suction duct fastening member 436 for fastening the suction duct 430 to the battery pack 400. [

 The lower plate portion 434 is formed with a fastening hole 437 through which the suction duct fastening member 436 is fastened.

 The battery pack 400 may be formed with a fastening hole 424 at a position facing the fastening hole 437 of the suction duct 430 and a suction duct 430 may be formed at the fastening hole 437 of the lower plate portion 434, Can be fastened to the battery pack 400 by the suction duct fastening member 436 in a state where the fastening hole 424 of the battery pack 400 is aligned with the fastening hole 424 of the battery pack 400.

 The filter 450 may be made of a nonwoven fabric.

The filter 450 is provided with a ventilation groove portion (not shown) for avoiding a suction duct fastening member 436 which is interposed between the suction duct fastening member 436 and the suction duct 430 and can be fixed by the suction duct fastening member 436 452 may be formed.

 The filter 450 is preferably formed to be smaller than the opening 212 so that the operator can replace or service the filter 450 without disassembling the battery pack 400 from the vehicle body 2. [ That is, when the filter 450 is formed to be smaller than the opening 212, the operator can replace or service the filter 450 through the opening 212 at the car room side.

  The electric vehicle further includes an exhaust fan unit 460 connected to the discharge duct 440 to allow the air to pass through the suction duct 430, the battery pack 400 and the discharge duct 440 in order, can do.

When the exhaust fan unit 460 is installed close to the opening 212, it is preferable that the exhaust fan unit 460 is installed as far as possible from the rear opening 310 because noise is likely to be transmitted through the opening 212.

The exhaust fan unit 460 may be installed on the vehicle body 2 so as to be positioned behind the battery pack 400.

 The air inlet 420 may be formed on the upper surface of the front portion of the battery pack 400 and the air outlet 422 may be formed on the upper surface of the rear portion of the battery pack 400.

 The suction duct 430 may be disposed on the upper side of the front portion of the battery pack 400 and the discharge duct 440 may be connected to the upper side of the rear portion of the battery pack 400.

The discharge port 442a of the discharge duct 440 can pass through the vehicle body 2 and be exposed to the outside. When the battery cell is damaged in the battery pack 400, harmful gas of human body is generated. This is to prevent the harmful gas from entering the room.

The discharge port 442a of the discharge duct 440 is exposed to the outside through the rear opening 310 of the lower surface of the rear body 300. [

The discharge duct 440 may be configured in various ways, but may be formed of the first discharge duct 441 and the second discharge duct 442.

The first discharge duct 441 communicates the air discharge port 422 with the exhaust fan unit 460 and guides air from the air discharge port 422 to the exhaust fan unit 460.

The second discharge duct 442 communicates with the exhaust fan unit 460 to guide air to the outside of the vehicle body 2. [

The discharge duct 440 may be coupled to the vehicle body 2 by discharge duct fastening members 470 and 471 in order to prevent breakage of the discharge duct 440 due to vibration generated in the running of the vehicle.

Preferably, the vehicle body 2 and the discharge duct 440 are spaced apart from each other so that transmission of the vibration of the vehicle body 2 can be reduced. For example, the discharge duct fastening members 470 and 471 include an arm 470 for holding and supporting the discharge duct 440 and the vehicle body 2, a bolt 470 for fastening the arm 470 to the vehicle body 2, Member 471 as shown in FIG. However, the present invention is not limited thereto and various configurations are possible.

More specifically, since the discharge duct 440 is not excellent in rigidity, the discharge duct fastening members 470 and 471 are coupled to the exhaust fan unit 460 coupled to the discharge duct 440.

Hereinafter, the operation of the present invention will be described.

A suction force is generated inside the discharge duct 440, the battery pack 400 and the suction duct 430 and the air in the vehicle body is discharged to the inside of the vehicle body 2, And is sucked into the suction duct 430 through the opening 212 of the suction duct 430.

The air sucked into the suction duct 430 is filtered by the filter 450 while foreign substances in the air are filtered by the filter 450 and only the air filtered by the foreign substance is sucked into the battery pack 400. The air sucked into the battery pack 400 is brought into contact with the battery cell unit to cool the battery cell unit in an air-cooling manner, and then sucked into the discharge duct 440. The air sucked into the discharge duct 440 is sucked by the exhaust fan unit 460 and then exhausted through the exhaust fan unit 460 to the outside of the electric vehicle.

The electric vehicle according to the embodiment may further include an intermittent portion 490, a moisture sensor 480, a controller 500, and an actuator 600.

The moisture sensor 480 senses moisture flowing into the discharge port 442a of the discharge duct 440. Here, it is preferable that the minimum unit of moisture sensed by the moisture sensor 480 is set so as to affect the battery cell unit. In addition, the moisture sensor 480 is disposed adjacent to the discharge port 442a of the discharge duct 440, and senses water droplets scattered during driving of the vehicle.

The moisture sensor 480 may be disposed inside and / or outside the discharge port 442a of the discharge duct 440, and more preferably, the discharge duct 440 may be disposed so as not to interfere with the movement of the intermittent portion 490. [ Of the discharge port 442a. In addition, when the discharge port 442a of the discharge duct 440 is exposed downwardly of the vehicle body 2, it is preferable that the moisture sensor 480 is disposed at the outer lower side of the discharge port 442a of the discharge duct 440 something to do.

The moisture sensor 480 is connected to the controller 500 through an electric or wire / wireless communication method to transmit (output) an input signal according to moisture detection to the controller 500. [ That is, the moisture sensor 480 transmits a detection signal to the control unit 500 when moisture (water) is detected in the vicinity of the discharge port 442a of the discharge duct 440, and when moisture is not sensed, And transmits the signal to the control unit 500.

The control unit 500 outputs a control signal based on the input signal of the moisture sensor 480. That is, the controller 500 calculates a control signal based on the input signal of the moisture sensor 480 and outputs the calculated control signal to the actuator 600. The control unit 500 may be implemented as a microcomputer or a central processing unit (CPU), and may also be implemented by being divided into an operation unit and a storage unit that stores data and control signals stored in the operation unit.

The control unit 500 may output a control signal to the actuator 600 to close the intermittent unit 490 when the moisture amount sensed by the moisture sensor 480 exceeds the predetermined moisture amount.

Alternatively, the controller 500 may output a control signal so that the actuator 600 opens the intermittent part 490 when no moisture is sensed in the moisture sensing sensor 480 for a predetermined time. Here, the predetermined time is not limited, but preferably 30 seconds to 1 minute can be set.

The actuator 600 controls opening and closing of the intermittent part 490 according to the control signal output from the control part 500. The actuator 600 can be not only an electric actuator, but also a hydraulic or pneumatic cylinder type can be used. However, the present invention is not limited thereto, and various types of actuation devices can be used.

The intermittent portion 490 interrupts the discharge port 442a of the discharge duct 440. The intermittent part 490 may have various configurations, but may include a door 491 rotatably connected to the discharge port 442a of the discharge duct 440.

A method in which the door 491 is rotatably connected to the discharge port 442a of the discharge duct 440 is not limited and may be connected by a hinge portion 492 formed at the center of both sides of the door 491. [

The door 491 may have a shape corresponding to the discharge port 442a of the discharge duct 440. For example, since the discharge port 442a of the discharge duct 440 has a substantially rectangular cross-sectional shape, the door 491 can also have a rectangular shape.

The controller 500, the moisture sensor 480, and the actuator 600 may be connected by a wire / wireless communication method. For example, the control unit 500 and the respective components may be connected to each other via Bluetooth, a wireless broadband Internet, a high speed downlink packet access (HSDPA), a Wi-Fi, a WiMAX, a ZIGBEE ultra wideband (UWB) (IrDA), RF communication, CAN communication, and NFC (short-range wireless communication). However, the present invention is not limited to this, and can be connected by any wired / wireless communication method that can be changed by those skilled in the art.

6 (a), moisture is not detected for a predetermined time by the moisture sensor 480, and the controller 500 outputs a control signal to open the door 491, Of the total.

6B shows a state in which the controller 500 closes the door 491 by outputting a control signal to close the door 491 when moisture is detected by the moisture sensor 480.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

<Description of Symbols>

2: Body 210:

212: opening 400: battery pack

402: Battery cell unit 420: Air inlet

422: Air outlet 430: Suction duct

431: communication hole portion 432: filter seat portion

433: mesh 434:

435: rim 436: suction duct fastening member

440: Discharge duct 450: Filter

452: avoiding groove portion 460: exhaust fan unit

Claims (17)

A battery pack in which a battery cell unit is built and in which an air inlet for allowing air to cool the battery cell unit and an air outlet for discharging air that has cooled the battery cell unit are formed;
A suction duct communicated with the air inlet port and guided to the air inlet port to cool the battery cell unit;
A discharge duct communicating with the air discharge port to guide the air discharged to the air discharge port, the discharge port passing through the vehicle body and exposed to the outside;
A moisture sensor for sensing moisture flowing into the discharge port of the discharge duct;
A controller for outputting a control signal based on an input signal of the moisture monitor sensor;
An actuator controlled according to a control signal output from the controller;
And an intermittent portion for interrupting the discharge port of the discharge duct in accordance with the operation of the actuator. The method according to claim 1,
The intermittent-
And a door rotatably connected to a discharge port of the discharge duct. The method according to claim 1,
The moisture sensor comprises:
And is disposed adjacent to a discharge port of the discharge duct. The method according to claim 1,
Wherein,
Wherein the controller outputs a control signal to cause the actuator to close the intermittent portion when the moisture amount sensed by the moisture sensor exceeds a predetermined moisture amount. 5. The method of claim 4,
Wherein,
Wherein the actuator outputs a control signal to open the intermittent portion when no moisture is sensed in the moisture sensor for a predetermined time. The method according to claim 1,
And the discharge port of the discharge duct is exposed to the outside through a rear opening formed in the rear of the vehicle body. The method according to claim 1,
Wherein the discharge duct is provided with an exhaust fan unit for flowing air in the discharge duct,
In the discharge duct,
A first discharge duct communicating with the air discharge port and guided by the exhaust fan unit,
And a second discharge duct communicating with the exhaust fan unit and guided outside the vehicle body. The method according to claim 1,
And a filter disposed in the suction duct to filter foreign substances in the air flowing toward the air inlet. 9. The method of claim 8,
Wherein the suction duct is formed with a communication hole communicating with the air inlet, and a filter seat on which a rim of the filter is seated is formed. 9. The method of claim 8,
Wherein the suction duct is provided with a mesh on which the filter is seated. 9. The method of claim 8,
Wherein the electric vehicle further comprises a suction duct fastening member for fastening the suction duct to the battery pack. 12. The method of claim 11,
Wherein the suction duct includes a lower plate portion on which a rim of the filter is seated and a communication hole portion communicating with the air intake port, and a rim protruding upward from the lower plate portion. 13. The method of claim 12,
And the lower plate portion has a fastening hole to which the suction duct fastening member is fastened. 12. The method of claim 11,
Wherein the filter has an avoidance groove portion for avoiding the suction duct fastening member. 15. The method of claim 14,
The battery pack is installed on the lower side of the vehicle body,
The vehicle body is formed with an opening through which air of a vehicle room can be discharged downward,
And the suction duct is disposed in communication with the opening. 16. The method of claim 15,
Wherein the filter is formed smaller than the opening. 8. The method of claim 7,
And a discharge duct fastening member for fastening the discharge duct to the vehicle body.

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