JP4684718B2 - Ventilator for vehicles - Google Patents

Description

The present invention relates to a vehicle ventilation device that ventilates when the temperature inside the vehicle rises during parking, and in particular, introduces outside air into the internal space of an instrument panel (hereinafter referred to as instrument panel), The present invention relates to a vehicle ventilator that forcibly exhausts stagnant air in a vehicle interior space.

  If the vehicle is stopped in the summer, the temperature inside the vehicle becomes 70 ° C. or higher, which gives the passengers an uncomfortable feeling and requires very large energy for cooling. In general, this is called a heat load during parking, and various countermeasures are taken. For example, there is a prior art such as a heat-cut glass that prevents heat from entering the interior of the vehicle, or ventilates with a blower while parking and discharges heat outside the vehicle (for example, Patent Document 1). -6).

  However, the above prior art has a low practicality because a battery or a solar cell is required as a power source for the control that always turns the ventilation blower when the vehicle interior temperature rises due to solar radiation or the like.

  In addition, as a ventilation technique, there is a technique in which a window is opened and a blower of an air conditioner is operated when a vehicle door lock is released (see, for example, Patent Document 7). However, the opening of the window with the release of the door lock was unnatural and uncomfortable when the passenger boarded.

  In addition, there is a technique in which ventilation is performed for a predetermined time after the door key is inserted (see, for example, Patent Document 8). However, the time from when the door key is inserted until the passenger enters the vehicle is very short, and the temperature inside the vehicle is not lowered.

Further, when ventilation is performed even after the passenger gets on, the airflow discharged from the air outlet of the air conditioner hits the passenger and gives an uncomfortable feeling.
JP-A-5-147426 JP-A-8-11524 Japanese Patent Publication No. 3-38134 JP-A-2-256510 JP-A 61-143211 Japanese Utility Model Publication No. 58-22308 Japanese Patent Laid-Open No. 5-286351 JP 57-33011 A

  As a result of investigating the heat distribution in the vehicle, the present inventors found that the temperature near the windshield and the interior ceiling was around 64 ° C., whereas the instrument panel top panel was easily exposed to direct sunlight, and the instrument panel Since there are many components, these components are heated and become high temperature, and it turned out that an instrument panel part may exceed 90 degreeC. Some of these components have relatively large heat capacities and are difficult to cool once heated. And since the air in the internal space of the instrument panel is stagnant, it is easy to receive heat transfer and becomes extremely hot.

  The following means can be considered to lower the temperature of the instrument panel, and thus the temperature of the interior space at an early stage. One is a means for forcibly exhausting the staying air in the internal space of the instrument panel and the staying air in the interior space of the instrument panel. By this means, the temperature inside the instrument panel and the interior temperature of the instrument panel can be lowered, thereby lowering the temperature of the instrument panel surface, and thus the heat radiation energy to the interior of the vehicle can be reduced. The other is a means for introducing outside air into the inner space of the instrument panel and exhausting both the outside air and the staying air in the inner space of the instrument panel into the vehicle. By this means, the temperature of the internal space of the instrument panel and the temperature inside the vehicle can be lowered, thereby lowering the temperature of the instrument panel surface, and thus the heat radiation energy into the vehicle can be reduced. As a means for exhausting the outside air into the vehicle, for example, stepwise ventilation in which the air volume is increased in the first stage ventilation and the air volume is decreased in the second stage ventilation is also conceivable. The present invention is used by switching between two ventilation states so that the passenger does not feel uncomfortable by being exposed to the ventilation airflow discharged from the air outlet of the air conditioner, and the passenger is exposed to the ventilation airflow. It is an object of the present invention to provide a vehicle ventilator that can reduce the temperature inside the instrument panel and the temperature inside the vehicle efficiently. In particular, an object of the present invention is to provide a vehicle ventilator that operates when the vehicle interior temperature rises during parking in order to prevent the vehicle interior temperature from rising due to solar radiation during parking.

To solve the above problems, a vehicle ventilation system according to the present invention, the ventilating device for a vehicle, the first trigger and the first ventilation, have a ventilation means for changing the second trigger to the second ventilation, The ventilation means is formed by switching between a ventilation port provided in the vehicle and a first air flow through which the outside air enters the vehicle interior through the ventilation port or a second air flow through which the air in the vehicle interior exits the vehicle interior through the ventilation port. A vent flow path, a blower disposed in the vent flow path, a door lock sensor that detects a signal that the door lock of the vehicle is released as the first trigger, and the door of the vehicle is opened When a door sensor that detects a signal as the second trigger and the door lock sensor detects the release of the door lock, the first air flow is formed as the first ventilation state, and the door sensor And a control means for forming the second air flow as the second ventilation state when the opening of the door is detected, and the vent flow path communicates with the outside air introduction path and the interior of the vehicle An inside / outside air switching box having an air intake port and an intake door for switching between introduction of inside / outside air, an instrument panel internal communication port for discharging a part or all of the first air flow to the internal space of the instrument panel, and the instrument panel A first door that opens and closes the internal communication port, a bypass channel that is branched downstream of the blower in the ventilation channel and that is connected to the outside air introduction channel, and that opens and closes the bypass channel And a second door .

Before tower ride's boarding performs a ventilation for discharging outside air into the vehicle in a first ventilation can early reduce the temperature and the interior temperature within the instrument panel. After boarding, in the second ventilation state, perform ventilation to exhaust the hot air in the passenger compartment to the outside of the passenger compartment, and reduce the temperature inside the instrument panel and the temperature inside the passenger compartment, and that the passenger is exposed to the ventilation airflow. This can reduce passenger discomfort.

Also, the vehicle ventilating apparatus according to the present invention an air conditioning system for vehicles (hereinafter. Referred to as "HVAC") can be incorporated into.

  In the vehicle ventilator according to the present invention, the first air flow is such that the outside air is sucked into the ventilation port, the outside air sucked into the ventilation port flows through the ventilation channel, and the air flowing through the ventilation channel. Is discharged into the inner space of the instrument panel from the instrument panel internal communication port, and the air discharged into the inner space of the instrument panel and the accumulated air in the inner space of the instrument panel are discharged into the vehicle through a structural gap of the instrument panel. Including air flow. The first air flow is made possible by setting the vehicle ventilator according to the present invention to the outside air extrusion mode. In the outside air extrusion mode, outside air is introduced into the inner space of the instrument panel, the outside air and the staying air inside the instrument panel (hereinafter referred to as “instrument staying inside the instrument panel”) are both pushed into the vehicle interior, and the interior space together with the air exhausted into the interior of the vehicle. This mode is to push out the remaining air (hereinafter referred to as “in-vehicle staying air”) to the outside of the vehicle.

  Further, in the vehicle ventilator according to the present invention, the second air flow is such that stagnant air in the vehicle interior space is taken into the internal space of the instrument panel through a gap in the structure of the instrument panel, and the internal space of the instrument panel The air taken in and the staying air in the internal space of the instrument panel are sucked into the air intake port of the vehicle, and the air sucked into the air intake port of the vehicle flows through the ventilation channel, and the air that flows through the ventilation channel Flows through the bypass flow path, and the air flowing through the bypass flow path is an air flow exhausted outside the vehicle through the ventilation port. The second air flow is made possible by setting the vehicle ventilator according to the present invention to the forced exhaust mode. In the forced exhaust mode, the air staying inside the instrument panel and the staying air between the instrument panel and the windshield sucked through the instrument panel structural gap (hereinafter referred to as “instrument staying in the upper part of the instrument panel”) are sucked together and forced exhausted outside the vehicle. It is a mode to do.

  Furthermore, in the vehicle ventilator according to the present invention, the instrument panel includes an instrument panel ventilation hole that communicates the internal space of the instrument panel with the interior space. By providing an instrument panel ventilation hole in the instrument panel, in the outside air extrusion mode, the outside air discharged from the instrument panel internal communication port and the air staying in the instrument panel can be introduced into specific locations on the instrument panel. Further, in the forced exhaust mode, the air staying in the upper part of the instrument panel can be taken into the instrument panel from a specific location on the instrument panel and exhausted outside the vehicle.

  In the vehicle ventilation device according to the present invention, the control means inputs engine operation / stop information from the engine control device, inputs vehicle interior temperature information from the inside air sensor, inputs a door lock release signal, and the vehicle door. Is input to the first door opening / closing means, the opening / closing signal is output to the second door opening / closing means, and the opening / closing signal is output to the second door opening / closing means. A signal for setting the inside air introduction mode or a signal for setting the outside air introduction mode to the inside / outside air switching operation means, an on / off signal is outputted to the operation means of the blower, and information that the engine is stopped, When the information that the vehicle interior temperature is equal to or higher than the predetermined temperature and the door unlock signal are input, an ON signal is output to the blower operating means, and an open signal to the first door opening / closing means Output A closing signal is output to the opening / closing means of the second door, a signal for setting the outside air introduction mode is output to the inside / outside air switching operation means of the intake door, and a signal that the vehicle door is opened is input. An ON signal is output to the blower operating means, a closing signal is output to the first door opening / closing means, an opening signal is output to the second door opening / closing means, and the intake door is output. A signal for setting the inside air introduction mode to the inside / outside air switching operation means. When the vehicle interior temperature rises to a predetermined temperature or more during parking, when the passenger receives a door lock release signal transmitted from outside the vehicle, the outside air push-out mode is activated. Thereby, cooling with outside air is performed while excluding air inside the vehicle that has become hot during parking outside the vehicle. Further, when the passenger opens the door, the forced exhaust mode is activated. This eliminates high-temperature instrument panel internal stay air and instrument panel upper stay air. Since the passenger is in the forced exhaust mode after boarding, the passenger is not exposed to the airflow of ventilation, and ventilation without discomfort can be performed.

  Further, in the vehicle ventilation device according to the present invention, the control means inputs engine operation / stop information from the engine control device, inputs vehicle temperature information from the inside air sensor, inputs a door lock release signal, A signal indicating that the door has been opened and a signal for opening or closing the first door opening / closing means are output, and a signal or outside air introduction is set to the inside / outside air switching operation means of the intake door. A signal for setting the mode is output, a signal indicating the rotation speed of the blower is output to the operating means of the blower, and information that the engine is in a stopped state and information that the vehicle interior temperature is equal to or higher than a predetermined temperature When a door lock release signal is input, a signal for setting a predetermined number of revolutions is output to the blower operating means, an opening signal is output to the first door opening / closing means, and the intake door When the signal for setting the outside air introduction mode is output to the outside air switching operation means, and further when the signal that the door of the vehicle is opened is input, the operation means of the blower has a lower rotation speed than the predetermined rotation speed. The first door opening / closing means remains open, and the intake door inside / outside air switching operation means remains in the outside air introduction mode. When the vehicle interior temperature rises to a predetermined temperature or more during parking, when the passenger receives a door lock release signal transmitted from outside the vehicle, the outside air push-out mode is activated. Thereby, cooling with outside air is performed while excluding air inside the vehicle that has become hot during parking outside the vehicle. Further, when the passenger opens the door, the air volume in the outside air extrusion mode is reduced. Thereby, high temperature instrument panel internal stagnant air and instrument panel top stagnant air are continuously removed. Since the outside air push-out mode with a small air volume after the occupant has boarded, it is possible to reduce the exposure of the occupant to the airflow of ventilation and to perform ventilation with less discomfort.

  In the vehicle ventilator according to the present invention, the first air flow may include a fragrance component and / or negative ions. The first air flow is based on the outside air extrusion mode, and can supply a fragrance component and negative ions into the vehicle together with the outside air. Thus, an effective component can be supplied according to the direction of air flow.

  Furthermore, in the vehicle ventilator according to the present invention, the deodorizing component and / or the disinfecting component is included in the second air flow. The second air flow is based on the forced exhaust mode, and the interior of the vehicle ventilation device can be deodorized and sterilized together with the staying air inside the instrument panel and the staying air inside the instrument panel. Thus, an effective component can be supplied according to the direction of air flow.

  The vehicle ventilator according to the present invention switches between two ventilation states before and after the rider's boarding, so that the boarded passenger is not exposed to the ventilation airflow and feels uncomfortable and is efficient. The temperature inside the instrument panel and the interior temperature can be reduced

Hereinafter, although this invention is demonstrated in detail, showing embodiment, this invention is limited to these description and is not interpreted. Hereinafter, the vehicle ventilator according to the present embodiment will be described with reference to FIGS. 1 to 9. The third embodiment is a reference example.

(First embodiment)
The vehicular ventilator according to the present embodiment includes a ventilating unit that changes to a first ventilating state by a first trigger and changes to a second ventilating state by a second trigger in the vehicular ventilator. In the first embodiment, the ventilation means includes a ventilation port provided in the vehicle, and a first air flow through which the outside air enters the vehicle interior through the ventilation port or a second air flow through which the air in the vehicle interior exits the vehicle interior through the ventilation port. An air passage formed by switching, a blower disposed in the air passage, a door lock sensor for detecting a signal that the door lock of the vehicle is released as the first trigger, and a door of the vehicle A door sensor that detects a signal that the door is opened as the second trigger, and when the door lock sensor detects release of the door lock, the first air flow is formed as the first ventilation state, and the door sensor And detecting means for forming the second air flow as the second ventilation state.

  Furthermore, in the vehicle ventilator according to the first embodiment, the ventilation channel includes an outside air introduction path that communicates with the ventilation port, an inside air intake port, and an intake door that switches between inside and outside air introduction. A switching box, an instrument panel internal communication port that discharges part or all of the first air flow to an internal space of the instrument panel, a first door that opens and closes the instrument panel internal communication port, and the blower of the ventilation channel And a second passage that opens and closes the bypass passage and is branched to the outside air passage and joined to the outside air introduction passage.

  This embodiment will be described with reference to a vehicle ventilation device 100 shown in FIG. FIG. 1 is a schematic view showing an embodiment of a vehicle ventilation device of the present embodiment. A vehicle ventilator 100 includes a vent 1 provided on a wall surface of a fire board 5 of a vehicle, a blower 2, a door lock sensor 39 that detects a signal that a vehicle door lock (not shown) is released, The door sensor 32 which detects the signal that the door (not shown) of this was opened, and the control means 31 are provided. In addition, the vehicle ventilation device 100 includes an inside / outside air switching box 10 that is an intake portion, ventilation channels 6 a, 6 b, and 6 c that are air channels from the ventilation port 1 to the vehicle outlet 15, and a case 16. An instrument panel internal communication port 11 provided on the side wall and a first door 12 for opening and closing the instrument panel internal communication port 11 are provided. The ventilation channels 6a, 6b, 6c are formed by the case 16. Of the ventilation channel 6 a, the channel from the position of the ventilation port 1 to the position when the intake door 7 is set to the inside air introduction mode is referred to as an outside air introduction path 9. Further, the vehicle ventilator 100 includes a bypass flow path 13 that is branched downstream of the blower 2 and connected to the outside air introduction path 9 that communicates with the ventilation port 1 among the ventilation flow paths 6a, 6b, and 6c. The second door 14 opens and closes the bypass flow path 13.

  In the vehicle ventilator 100, the evaporator 17 is disposed in the case 16, and the HVAC is also used. Therefore, the vehicle ventilation device 100 can be used as a normal mode for performing an air conditioning operation and a ventilation mode for performing a ventilation operation. Further, in order to purify the air blown from the in-vehicle outlet 15, the filter unit 18 may be disposed, for example, in the ventilation channel 6 b in the case 16 as shown in FIG. 1.

  Furthermore, in order to control the vehicle ventilator 100 according to the present embodiment, the vehicle ventilator 100 includes a control unit 31, a door lock sensor 39, a door sensor 32, an engine control device (engine ECU 33), An inside air sensor 34 for monitoring the temperature of the space, a blower operating means 35, an inside / outside air switching operating means 36 for switching between an outside air introduction mode (FRE mode) and an inside air introduction mode (REC mode), and a first door opening / closing means 37. And a second door opening / closing means 38.

  The ventilation port 1 is an intake port for taking outside air into the interior of the vehicle when the vehicle ventilator 100 is used in the outside air push-out mode. Further, when the vehicle ventilator 100 is used in the forced exhaust mode, it is a discharge port for exhausting the air inside the vehicle to the outside of the passenger compartment. In addition, when the HVAC is used in the normal mode as in the present embodiment, it serves as an inlet for taking outside air into the vehicle.

  The inside / outside air switching box 10 includes an outside air introduction path 9 that communicates with the ventilation port 1, a vehicle interior air inlet 8, and an intake door 7 that switches between introduction of inside and outside air. The intake door 7 is a door that switches between the FRE mode and the REC mode. In the FRE mode, the outside air taken in from the ventilation port 1 is taken into the ventilation channel 6 a of the inside / outside air switching box 10 via the outside air introduction path 9. In the REC mode, the in-vehicle air taken in from the in-vehicle air inlet 8 is taken into the ventilation channel 6 a of the inside / outside air switching box 10.

  The blower 2 is provided in the ventilation channels 6a, 6b, and 6c in the case 16, and forms an air flow in the ventilation channel. In FIG. 1, the blower 2 is a centrifugal sirocco fan. However, the blower 2 may be a turbo fan or a once-through blower.

  The filter unit 18 is for purifying air, and it is preferable to incorporate a dust collection filter and a deodorizing filter in a filter frame that fixes the filter end so that the filter surface is not covered. The filter unit 18 may be installed upstream of the blower 2.

  The evaporator 17 constitutes an air conditioning refrigeration cycle. The refrigeration cycle includes at least a compressor (not shown) that compresses and discharges the vaporized refrigerant, a condenser (not shown) that cools the refrigerant discharged from the compressor and condenses the refrigerant, and throttles the refrigerant condensed by the condenser There are provided an expansion valve (not shown) that makes the gas-liquid mixture by action, and an evaporator 17 that cools and dehumidifies the air by the evaporation heat of the refrigerant that has become the gas-liquid mixture by the expansion valve. A heater core (not shown) and an air mix door (not shown) are disposed downstream of the air flow 23, and a vent outlet (not shown) and a side vent outlet ( An air outlet such as a non-illustrated air outlet, a differential air outlet (not shown), or a foot air outlet (not shown) is provided.

  The instrument panel 3 of the vehicle accommodates the vehicle instrument, HVAC unit, and other components when the fire board 5 and the driver seat / passenger seat are arranged between the fire board 5 and the driver seat / passenger seat, and partitions the vehicle compartment. The top panel portion of the instrument panel 3 of the vehicle is heated by receiving direct sunlight transmitted through the windshield. And the residence air of the internal space 4 of an instrument panel becomes high temperature. At the same time, the stagnation air between the instrument panel 3 and the windshield also becomes high due to radiant heat from the instrument panel 3. The components arranged in the internal space 4 of the instrument panel are also heated, but many of them have a large heat capacity, and once heated, it takes time to cool down. There is a structural gap (not shown) in the instrument panel 3, and air can travel between the vehicle interior space and the inner space 4 of the instrument panel through this gap. A structural gap (not shown) is generated, for example, in the instrument panel 3 main body and the dashboard mounting portion.

  As shown in FIG. 1, the instrument panel 3 is preferably provided with an instrument panel ventilation hole 19. The instrument panel ventilation hole 19 is a hole that communicates from the surface of the instrument panel 3 on the interior space side to the surface of the inner space 4 of the instrument panel. When the vehicle ventilator 100 is operated in the outside air push-out mode, the blower 2 is operated to open the vehicle ventilator 100 and discharge it from the instrument panel internal communication port 11 by the operation of the blower 2 and the hole for pushing out the internal air staying in the instrument panel into the vehicle interior space. is there. Further, when the vehicle ventilator 100 is operated in the forced exhaust mode, the operation of the blower 2 allows the vehicle ventilator 100 to take in the air staying in the upper part of the instrument panel between the surface of the instrument panel 3 on the interior space side and the windshield. It is a hole. The shape, size, and number of the instrument panel ventilation holes 19 are not particularly limited. It may be a single hole or a mesh-shaped hole. In addition, in the schematic diagram which shows embodiment of this invention, and the figure of an air flow, it describes as the form which provided the instrument panel ventilation hole 19. FIG.

  The instrument panel internal communication port 11 communicates the instrument panel internal space 4 and the internal space of the case 16, and discharges an air flow flowing through the case 16 to the internal space 4 of the instrument panel. The instrument panel internal communication port 11 only needs to be downstream of the blower 2, and is provided, for example, at a position on the side wall of the case 16 where the ventilation channels 6 b and 6 c are formed. For example, when the air flow path 6b is located, there are no components that block the air flow such as the filter unit 18 and the evaporator 17 in the air flow, and the dynamic pressure of the air flow is easily maintained. Therefore, even if the rotation speed of the blower 2 is small, ventilation can be performed efficiently. A branch point (not shown) is provided on the side walls of the ventilation channels 6b and 6c, a branch path (not shown) for guiding an air flow from the branch point to the internal space 4 of the instrument panel is provided, and an end of the branch path is connected to the instrument panel internal communication port. 11 may be used.

  The instrument panel internal communication port 11 includes a first door 12 and first door opening / closing means 37. The first door 12 is a door that opens and closes the instrument panel internal communication port 11. The configuration of the first door opening / closing means 37 that is the opening / closing means of the first door 12 is not particularly limited. As shown in FIG. 1, as a door-like form, it may be opened and closed by rotating it, or as a shielding plate, it may be opened and closed by sliding it. When the vehicle ventilator 100 is operated in the outside air extrusion mode with the first door 12 open, a part or all of the flow formed by the blower 2 is guided to the internal space 4 of the instrument panel. When the vehicle ventilator 100 is operated in the forced exhaust mode with the first door 12 closed, the instrument panel internal air, the instrument panel upper air, and the vehicle internal air sucked into the vehicle ventilator 100 are Can be prevented from flowing into the internal space 4. Further, when the first door 12 is in the closed state, it is possible to prevent the air cooled by the evaporator 17 from flowing out into the internal space 4 of the instrument panel when the HVAC is air-conditioned.

  One end of the bypass channel 13 is joined to the ventilation channel 6b or the side wall of the ventilation channel 6c, and the other end is joined to the outside air introduction channel 9 of the HVAC. The position where the bypass channel 13 is joined to the ventilation channel 6 b or the ventilation channel 6 c is not particularly limited as long as it is downstream of the blower 2. If the position where the ventilation flow path and the bypass flow path 13 are joined is the position of the ventilation flow path 6b, for example, there are no components that block the air flow such as the filter unit 18 and the evaporator 17 in the air flow, and the movement of the air flow Easy to maintain pressure. Therefore, even if the rotation speed of the blower 2 is small, ventilation can be performed efficiently.

  The second door 14 is provided at a position where the ventilation channel 6b or the ventilation channel 6c and the bypass channel 13 are joined. A second door 14 may be provided in the bypass flow path 13. When the second door 14 is in an open state, part or all of the flow formed by the blower 2 is guided to the bypass flow path 13. When the second door 14 is in a closed state, when the vehicle ventilator 100 is operated in the outside air extrusion mode, the outside air flows into the bypass channel 13 and flows out of the vehicle when the outside air is introduced into the internal space 4 of the instrument panel. Can be prevented. In addition, when the second door 14 is in a closed state, it is possible to prevent the air cooled by the evaporator 17 from flowing out of the vehicle when the HVAC is air-conditioned. The configuration of the second door opening / closing means 38 which is the opening / closing means of the second door 14 is not particularly limited. As shown in FIG. 1, as a door-like form, it may be opened and closed by rotating it, or as a shielding plate, it may be opened and closed by sliding it.

  The door lock sensor 39 is a sensor that detects a signal that the door lock (not shown) of the vehicle has been released. The vehicle ventilator 100 according to the present embodiment forms a first air flow using information detected by the door lock sensor 39 as a trigger. The door lock sensor 39 may be configured such that the passenger inserts the door lock key into the key hole and recognizes that the lock has been released, or transmits the door lock sensor 39 as a receiving means to the vehicle side, and transmits to the door lock key. Means (not shown) may be provided, and the door lock sensor 39 may recognize a signal sent from the door lock key as a door lock release signal. By using the door lock sensor 39 as the receiving means, the passenger can operate the vehicle ventilator 100 from outside the vehicle. The door lock sensor 39 may be installed in any of the door, trunk, dashboard, etc. of the vehicle. The door lock release signal may be information indicating that the passenger has approached the vehicle, and is a vehicle door lock key release signal or / and a ventilation start signal transmitted from a vehicle key such as a smart key or a remote control key, or Examples thereof include a vehicle door lock key release signal or / and a ventilation start signal transmitted from a communication terminal such as a mobile phone or PHS. The vehicle door lock key release signal or / and the ventilation start signal are transmitted by a medium such as radio waves or infrared rays, thereby enabling remote operation. The remotely operable range is preferably a range in which the door lock sensor 39 can receive information indicating that the passenger has approached the vehicle 1 to 5 minutes before the passenger enters the vehicle. For example, the radius is 80 m to 400 m with the vehicle as the center. However, it is not limited to a range with a radius of less than 80 m around the vehicle. From the viewpoint of vehicle security and ventilation time, it is preferable to operate the vehicle ventilator before releasing the door lock. In order to achieve this, it is necessary to use a ventilation start signal as information indicating that the passenger has approached. More preferred.

  A transmitter (not shown) may be installed in the vehicle. Only when a communication terminal such as a vehicle key, a mobile phone, or a PHS receives a signal from the transmitter, analyzes the signal, and satisfies a predetermined condition, the door lock sensor 39 detects the vehicle key, the mobile phone, the PHS, or the like. Registration means and authentication means may be provided so as to accept a signal transmitted from the communication terminal.

  The door sensor 32 is a sensor that detects that a vehicle door (not shown) is opened. The vehicle ventilator 100 according to the present embodiment switches between the first air flow and the second air flow using the information detected by the door sensor 32 as a trigger. When the door is opened, the passenger often gets on immediately. For example, if the ventilation air flow before boarding discharges air into the vehicle (first air flow), if the ventilation is continued as it is, the passenger will be exposed to a high-temperature ventilation air flow. However, by using the information from the door sensor 32 as a trigger, it is possible to switch the ventilation air flow (second air flow) so that the passenger is not exposed to the air flow. The door sensor 32 may directly detect the open / closed state of the door, or may detect a signal that the passenger is sitting on the seat and consider that the door is opened with this signal. The sensor type is not particularly limited. For example, a limit switch, a piezoelectric sensor, and an infrared sensor can be exemplified. The arrangement of the door sensor 32 is not particularly limited. For example, it may be a rotating part of a vehicle door or a part where the door and the vehicle main body come into contact. The door sensor 32 may be newly provided, or information from a sensor mounted on a normal vehicle may be used.

  Next, the air flow of the vehicle ventilator 100 according to the present embodiment will be described with reference to FIGS. The air flow of the vehicle ventilator 100 includes a first air flow in the outside air push-out mode and a second air flow in the forced exhaust mode, which are used by switching according to a signal from the door sensor. First, the first air flow in the outside air extrusion mode will be described with reference to FIG. The intake door 7 is set in the FRE mode, the first door 12 is in the open state, the second door 14 is in the closed state, and the blower 2 is operated, so that the outside air is taken into the ventilation channel 6a from the ventilation port 1; An air flow 21 is formed. The air flow 21 passes through the blower 2 and forms an air flow 22 in the ventilation flow path 6b. The air flow 22 passes through the filter unit 18 and the evaporator 17, and forms an air flow 23 in the ventilation flow path 6c. The air flow 23 flows toward the vehicle outlet 15. A first door 12 is provided on the side wall of the ventilation channel 6c. The first door 12 is in a closed state before the outside air extrusion mode is set, and is also in a closed state when the vehicle ventilator 100 is air-conditioned. When the first door 12 is in the closed state, the entire air flow 23 is exhausted from the in-vehicle outlet 15 to the in-vehicle space 41. In the outside air extrusion mode, the first door 12 is in an open state, and a part of the air flow 23 flows out into the inner space 4 of the instrument panel to become an air flow 24. Due to the air flow 24 flowing out into the inner space 4 of the instrument panel, the inner space 4 of the instrument panel becomes a positive pressure. When the internal space 4 of the instrument panel becomes positive pressure, both the staying air in the internal space 4 of the instrument panel and the introduced outside air become an air flow 25 that is discharged to the vehicle interior space 41 through the instrument panel vent hole 19. When the instrument panel ventilation hole 19 is not provided, the stagnant air in the inner space 4 of the instrument panel and the introduced outside air may be exhausted from the gap of the instrument panel 3 to the vehicle interior space 41.

  Next, the second air flow in the forced exhaust mode will be described with reference to FIG. When the intake door 7 is set to the REC mode, the first door 12 is closed, the second door 14 is opened, and the blower 2 is operated, the internal air staying in the instrument panel becomes the air flow 26. Further, by the operation of the blower 2, the instrument panel upper stay air becomes an air flow 27 that passes through the instrument panel ventilation hole 19 and flows into the inner space 4 of the instrument panel. In addition, the in-vehicle air in the in-vehicle space 41 becomes an air flow 28 toward the in-vehicle air inlet 8. The air flows 26, 27, and 28 are taken into the HVAC ventilation flow path 6 a from the in-vehicle air inlet 8 and become the air flow 21. The air flow 21 passes through the blower 2 and becomes the air flow 22 in the ventilation channel 6b. The air flow 22 passes through the filter unit 18 and the evaporator 17, and becomes an air flow 23 in the ventilation channel 6c. The air flow 23 flows toward the vehicle outlet 15. When the second door 14 is in an open state, part or all of the air flow 23 flowing through the ventilation flow path 6 c flows into the bypass flow path 13 and becomes an air flow 29. The air flow 29 flows into the outside air introduction path 9 to become an air flow 30, and is exhausted from the HVAC vent 1 to the outside of the vehicle 42.

  FIG. 4 shows the air flow in the vehicle interior space 41. For comparison with the air flow in the outside air extrusion mode and the forced exhaust mode by the vehicle ventilator 100 according to this embodiment, first, the air flow in the normal mode of HVAC is shown in FIG. FIG. 4A illustrates the REC mode as an example of the normal mode. The HVAC intake door 7 is in the REC mode. By the operation of the blower 2, the air in the vehicle interior 41 becomes an air flow 52. The air flow 52 becomes the air flow 28 toward the vehicle interior air inlet 8. The air flow 28 is taken into the HVAC ventilation flow path, and after cooling the air, the air flow 28 is exhausted again into the vehicle through the in-vehicle outlet 15 to become an air flow 51 and circulates in the vehicle.

  Next, FIG. 4B shows the air flow in the outside air extrusion mode by the vehicle ventilation device 100 according to the present embodiment. The outside air taken in from the ventilation port 1 by the operation of the blower 2 follows the path as described above with reference to FIG. 2 and becomes the air flow 25 discharged from the instrument panel air hole 19 to the vehicle interior space 41. The air flow 25 becomes an air flow 53 that pushes up the staying air between the windshield and the instrument panel 3. By discharging the air flow 53 to the vehicle interior space 41, the vehicle interior space 41 becomes positive pressure, and the air in the vehicle forms an air flow 54 toward the vehicle interior air discharge path 50. The air flow 54 becomes an air flow 55 discharged to the outside of the vehicle 42 through the vehicle internal air discharge path 50.

  On the other hand, the air flow in the forced exhaust mode by the vehicle ventilator 100 according to the present embodiment is shown in FIG. FIG. 3 shows the components of the vehicle ventilation device 100 described in the description of the air flow in the vehicle and the description of the air flow inside the instrument panel 3 and the vehicle ventilation device 100. When the vehicle ventilator 100 according to the present embodiment is in the forced exhaust mode, the first door 12 is in the closed state, the second door 14 is in the open state, and the intake door 7 is in the REC mode. Due to the operation of the blower 2, the staying air in the inner space 4 of the instrument panel is sucked as the air flow 28 from the in-car air suction port 8, so that the inner space 4 of the instrument panel becomes negative pressure. Here, since the vehicle ventilator 100 includes the instrument panel vent 19 communicating with the vehicle interior space 41, the air in the vehicle flows toward the interior space 4 of the instrument panel. This flow in the vehicle is an air flow 56. The air flow 56 becomes an air flow 27 that flows into the inner space 4 of the instrument panel through the instrument panel ventilation hole 19. The air flow 27 becomes the air flow 30 that is exhausted from the ventilation port 1 to the outside of the vehicle 42 together with the air flow 26.

  FIG. 5A shows the air flow around the instrument panel 3 in the outside air extrusion mode. Outside air is introduced into the internal space 4 of the instrument panel by the vehicle ventilation device 100, and the internal space 4 of the instrument panel becomes positive pressure. For this reason, an air flow 25 is formed, and the outside air introduced into the inner space 4 of the instrument panel and the staying air 47 inside the instrument panel are exhausted into the vehicle interior space 41 through the instrument panel vent hole 19. By this exhaust, the temperature of the internal space 4 of the instrument panel can be lowered. The air exhausted from the instrument panel ventilation hole 19 into the vehicle interior space 41 becomes an air flow 53 that pushes the instrument panel upper staying air 46 between the instrument panel 3 and the windshield 48 to the rear of the vehicle interior space 41. Moreover, it is preferable that a part or all of the instrument panel ventilation hole 19a is directed to the handle 49 of the vehicle. FIG. 5A is a view showing that the instrument panel ventilation hole 19 a is directed to the handle 49. Due to the influence of solar radiation during parking, not only the surface of the instrument panel 3 but also the handle 49 becomes hot. An increase in the temperature of the handle 49 causes discomfort to the passenger and further affects the driving of the passenger. Therefore, it is desirable to lower the temperature of the handle 49. The air flow 25a formed by the instrument panel ventilation hole 19a is exhausted into the vehicle interior space 41 to become an air flow 53a. When the air flow 53 a is blown onto the handle 49, the heat of the handle 49 that is as high as the surface of the instrument panel 3 can be taken away, and the temperature of the handle 49 can be lowered.

  FIG. 5B shows the air flow around the instrument panel 3 in the forced exhaust mode. The vehicle interior air intake port 8 of the vehicle ventilator 100 according to the present embodiment is vehicle interior air that flows into the instrument panel internal space 4 through the instrument panel internal retained air 47 and the instrument panel ventilation holes 19 that are retained air in the instrument panel internal space 4. It is preferable to intake both of the instrument panel upper staying air 46. When the instrument panel vent hole 19 is provided in the instrument panel 3, the instrument panel internal retained air 47 becomes an air flow 26 by the operation of the blower 2 and is sucked into the vehicle interior air inlet 8, and the instrument panel upper retained air 46 is introduced from the vehicle interior space 41 into the instrument panel. The air flow 27 flows into the inner space 4 of the instrument panel through the air holes 19. During parking, the instrument panel 3 becomes hot due to direct sunlight, and radiant heat from the instrument panel 3 causes the instrument panel upper stay air 46 and the instrument panel internal stay air 47 between the windshield 48 and the instrument panel 3 to become extremely hot. On the other hand, for example, even if only the instrument panel internal air 47 is forcibly exhausted to the outside by the vehicle ventilator 100, the remaining instrument panel upper air 46 may cause a temperature drop in the vehicle, and thus discomfort due to the high temperature of the passenger. Reduction cannot be done immediately. Therefore, the instrument panel internal air 47 and the instrument panel upper air 46 are forcibly exhausted outside the vehicle.

  Next, the usage method of the vehicle ventilation apparatus 100 in this embodiment is demonstrated. FIG. 1 is a block diagram showing components necessary for controlling the vehicle ventilator 100. The control means 31 inputs engine operation / stop information from the engine control device (engine ECU 33), inputs vehicle temperature information from the inside air sensor 34, and inputs a signal that the door lock is released from the door lock sensor 39, A signal indicating that the vehicle door has been opened is input from the door sensor 32. Further, the control means 31 outputs an on / off signal to the operating means 35 for controlling the on / off of the blower 2, outputs an open / close signal to the opening / closing means 37 of the first door, and opens / closes the second door. An open / close signal is output to the means 38, and a signal for setting the inside air introduction mode or a signal for setting the outside air introduction mode is output to the inside / outside air switching operation means 36 of the intake door 7.

  Here, the flow of control for cooling down the interior of the vehicle using the vehicle ventilator 100 when the in-vehicle temperature rises due to solar radiation during parking will be described. FIG. 6 is a flowchart showing a control flow of the vehicle ventilation device 100 according to the present embodiment. The air flow shown in the description of the control flow is shown in FIGS. When the door unlock signal is input (step S1), the engine ECU 33 determines the operating state of the engine (step S2), and when it is off, the internal air sensor 34 determines whether the vehicle interior temperature is 40 ° C. or higher. Is performed (step S3). When the in-vehicle temperature is less than 40 ° C., the blower 2 remains off (step S11) and the process returns to step S1. If the in-vehicle temperature is 40 ° C. or higher, it is determined whether or not the voltage of the in-vehicle battery indicated by the battery voltage sensor (not shown) is 12 V or higher (step S4). If the in-vehicle battery voltage is less than 12V, the flow returns to step S1 with the blower 2 turned off (step S11) to prevent the battery from running out. On the other hand, if the voltage of the in-vehicle battery is 12V or more, it is determined whether or not the vehicle door has been opened (step S5). If the vehicle door is not open, the intake door 7 is set to the FRE mode by the inside / outside air switching operation means 36 of the intake door 7 (step S6). Further, the first door opening / closing means 37 is opened (step S7), and the second door opening / closing means 38 is closed (step S8). Next, the fan of the blower 2 is turned on by the blower operating means 35 (step S9). When the blower 2 is operated, the intake door 7 is in the FRE mode, so that the outside air flows into the ventilation channel 6a and becomes the air flow 23 in the ventilation channel 6c. The air flow 23 flows toward the in-car outlet 15, but since the first door opening / closing means 37 provided in the ventilation flow path 6 c is open, part or all of the introduced outside air is inside the instrument panel. 4 is discharged. Next, it is determined whether the voltage of the vehicle battery is less than 11V (step S10). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S11) to prevent the battery from running out. On the other hand, when the voltage of the vehicle-mounted battery is 11 V or more, the process returns to step S1.

  On the other hand, when the door of the vehicle is opened after the door lock is released, the intake door 7 is set to the REC mode by the inside / outside air switching operation means 36 of the intake door 7 (step S12). The first door opening / closing means 37 is closed (step S13), and the second door opening / closing means 38 is opened (step S14). Next, the blower operating means 35 keeps the blower 2 fan on (step S15). When the blower 2 is actuated, the instrument panel internal stay air, the instrument panel upper stay air, and the vehicle stay air flow into the car air intake port 8, pass through the blower 2, and form an air flow 22 in the ventilation channel 6b. The air flow 22 passes through the filter unit 18 and the evaporator 17, and forms an air flow 23 in the ventilation flow path 6c. The air flow 23 flows toward the in-vehicle outlet 15, but the second door opening / closing means 38 provided in the ventilation flow path 6 c is open, so that part or all of the air flow 23 flows into the bypass flow path 13. It flows in and becomes an air flow 29. The air flow 29 passes through the outside air introduction path 9 and becomes an air flow 30 and is exhausted outside the vehicle. Next, it is determined whether the voltage of the vehicle battery is less than 11V (step S10). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S11) to prevent the battery from running out. On the other hand, when the voltage of the vehicle-mounted battery is 11 V or more, the process returns to step S1.

  When the engine is turned on (step S2), it is determined whether the air conditioner is on or off based on the air conditioner information from the air conditioner ECU (step S16). When the air conditioner is on, the blower operating means 35 turns on the blower 2 fan (step S17). Further, the first door opening / closing means 37 is closed (step S18), and the second door opening / closing means 38 is closed (step S19). As a result, the air conditioning operation is possible in either the REC mode or the FRE mode. Then, the process returns to step S1.

In the flowchart of FIG. 6, the operation of the blower 2 is determined based on the in-vehicle temperature of 40 ° C., but this is an example, and may be arbitrarily set at 35 ° C. or higher. The blower actuating means 35 has, for example, a low air volume (20 m ³ / hr) when the vehicle interior temperature is 40 ° C. or higher and lower than 50 ° C., and a medium air flow (70 m ³ / hr) when the vehicle interior temperature is 50 ° C. or higher and lower than 60 ° C. When the temperature is 70 ° C. or higher, the fan speed may be controlled so that the air volume is large (100 m ³ / hr) and is increased in proportion to the in-vehicle temperature. In addition, FIG. 6 shows a flow for preventing the battery from being exhausted by the voltage of the in-vehicle battery. However, after the blower 2 is turned on, the blower 2 is controlled to be turned off after a certain time has elapsed. Also good. Of course, two-stage control of ON / OFF corresponds to the scope of the present invention. For example, the fan may be operated when the temperature is 50 ° C. or lower, and when the temperature is 50 ° C. or higher. Moreover, 12V which is the reference | standard of the voltage of the vehicle-mounted battery which turns on the blower 2 may be set arbitrarily, and 11V which is the reference | standard of the voltage of the vehicle-mounted battery which turns off the blower 2 may also be set arbitrarily good.

  The following components may be included in the air flow formed by the vehicle ventilator 100 according to this embodiment used in this way. The first air flow may contain a fragrance component or negative ions. The first air flow is an air flow when the vehicle ventilator 100 is set to the outside air push-out mode, and is a flow for discharging the air toward the inside of the vehicle. Therefore, by supplying the air flow with an aroma component or negative ions into the vehicle, the passenger can feel comfortable when boarding. The second air flow may contain a deodorizing component or a sterilizing component. The second air flow is an air flow when the vehicle ventilator 100 is in the forced exhaust mode, and is a flow that exhausts the air inside the vehicle to the outside of the vehicle. Therefore, by including a deodorizing component and a sterilizing component in the air flow, it is possible to suppress the unusual odor that is caused by the propagation of microorganisms in the condensed water inside the HVAC and generated. Moreover, since the deodorizing component and the sterilizing component are included in the second air flow, these components are not discharged into the vehicle. The fragrance component and deodorant component described above may be sealed in an air permeable container and installed in the ventilation channel of the vehicle ventilator 100. The filter unit 18 is impregnated with these components. You may let them.

(Second Embodiment)
7 and 8 are schematic views showing a vehicle ventilator 200 which is another form of the vehicle ventilator 100. FIG. The vehicle ventilator 200 according to the present embodiment also uses the vehicle ventilator 200 according to the present embodiment as an HVAC, and the blower 2, the filter unit 18, and the evaporator 17 are arranged vertically. Furthermore, by providing the bypass flow path 13 adjacent to the differential duct 61 directed to the differential air outlet 60 of the HVAC, the ventilation switching door which is a switching means for the inflow of air flow to the differential duct 61 is also used as the second door 14. Can do. When operating in the normal mode (see FIG. 7A), the first door 12 is closed, the second door 14 is closed, and the air flow 23 passes through the differential duct 61 to the differential outlet 60. To the vehicle interior space 41.

  Next, the flow of air in the outside air push-out mode of the vehicle ventilator 200 will be described with reference to FIG. The intake door is set to FRE mode. By the operation of the blower 2, outside air is taken in from the ventilation port 1, passes through the blower 2, and forms an air flow 23 in the ventilation channel 6 c. The air flow 23 includes a flow in which the heater core 62 and the air mix door 63 are provided in the ventilation channel 6 c, the air mix door 63 is opened, and the heater core 62 is passed. When the vehicle ventilation device 200 operates in the outside air push-out mode, the first door 12 is opened, the second door 14 is closed, and the air flow 23 flows from the instrument panel internal communication port 11 to the instrument panel internal space 4. It flows in and becomes an air flow 24. The air flow 24 is exhausted from the instrument panel ventilation hole 19 to the vehicle interior space 41.

  The flow of air in the forced exhaust mode of the vehicle ventilator 200 will be described with reference to FIG. The intake door is in REC mode. Due to the operation of the blower 2, the air staying in the instrument panel and the air staying in the upper part of the instrument panel and the air inside the vehicle are taken from the vehicle interior space 41 through the air intake port 8, pass through the blower 2, and form an air flow 22 in the ventilation passage 6 b. To do. The air flow 22 passes through the filter unit 18 and the evaporator 17, and forms an air flow 23 in the ventilation flow path 6c. The air flow 23 includes a flow in which the heater core 62 and the air mix door 63 are provided in the ventilation channel 6 c, the air mix door 63 is opened, and the heater core 62 is passed. When the vehicle ventilation device 200 operates in the forced exhaust mode, the first door 12 is closed, the second door 14 is opened, the air flow 23 flows into the bypass flow path 13, and the air flow 29 Become. The air flow 29 is exhausted from the ventilation port 1 to the outside 42 of the vehicle.

  By using the vehicle ventilator 200 according to the present embodiment, the number of components can be reduced and the cost can be reduced.

(Third embodiment)
The vehicular ventilator according to the present embodiment includes a ventilating unit that changes to a first ventilating state by a first trigger and changes to a second ventilating state by a second trigger in the vehicular ventilator. In the third embodiment, the ventilation means includes a ventilation port provided in the vehicle, a ventilation channel that forms a first air flow through which the outside air enters the vehicle interior, and a blower disposed in the ventilation channel. A door lock sensor that detects a signal that the door lock of the vehicle is released as the first trigger; a door sensor that detects a signal that the door of the vehicle is opened as the second trigger; and the door lock sensor Detects the release of the door lock, the first air flow is formed as the first ventilation state, and when the door sensor detects the opening of the door, the second ventilation state is more airflow than the first ventilation state. Control means for forming a reduced first air flow.

  Furthermore, in the vehicle ventilator according to the third embodiment, the ventilation channel has an outside air introduction path that communicates with the ventilation port, an interior air intake port, and an intake door that switches between introduction of inside and outside air. A switching box, an instrument panel internal communication port that discharges a part or all of the first air flow to an internal space of the instrument panel, and a first door that opens and closes the instrument panel internal communication port.

  The difference between the vehicle ventilator according to the third embodiment and the vehicle ventilator according to the first embodiment is that the ventilation mode is only the outside air extrusion mode, the outside air extrusion mode with a large air volume in the first ventilation state, It is to set it as the external air extrusion mode with little air volume in 2 ventilation state. Therefore, the vehicle ventilator according to the third embodiment excludes the bypass flow path 13, the second door 14, and the second door opening / closing means 38 of the vehicle ventilator 100 of the first embodiment shown in FIG. Is the same as Moreover, the 1st air flow which the vehicle ventilator which concerns on 3rd Embodiment forms is the same as the external air extrusion mode which the vehicle ventilator 100 of 1st Embodiment forms. Therefore, only the usage method will be described in the third embodiment.

  FIG. 9 is a flowchart showing a control flow of the vehicle ventilator according to the third embodiment. The air flow shown in the description of the control flow is shown in FIG. When the door unlock signal is input (step S1), the engine ECU 33 determines the operating state of the engine (step S2), and when it is off, the internal air sensor 34 determines whether the vehicle interior temperature is 40 ° C. or higher. Is performed (step S3). When the in-vehicle temperature is less than 40 ° C., the blower 2 remains off (step S11) and the process returns to step S1. If the in-vehicle temperature is 40 ° C. or higher, it is determined whether or not the voltage of the in-vehicle battery indicated by the battery voltage sensor (not shown) is 12 V or higher (step S4). If the in-vehicle battery voltage is less than 12V, the flow returns to step S1 with the blower 2 turned off (step S11) to prevent the battery from running out. On the other hand, if the voltage of the in-vehicle battery is 12V or more, it is determined whether or not the vehicle door has been opened (step S5). If the vehicle door is not open, the intake door 7 is set to the FRE mode by the inside / outside air switching operation means 36 of the intake door 7 (step S6). Further, the first door opening / closing means 37 is opened (step S7). Next, the blower operating means 35 turns on the fan of the blower 2 at a high rotational speed (step S20). When the blower 2 is operated, the intake door 7 is in the FRE mode, so that the outside air flows into the ventilation channel 6a and becomes the air flow 23 in the ventilation channel 6c. The air flow 23 flows toward the in-car outlet 15, but since the first door opening / closing means 37 provided in the ventilation flow path 6 c is open, part or all of the introduced outside air is inside the instrument panel. 4 is discharged. Next, it is determined whether the voltage of the vehicle battery is less than 11V (step S10). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S11) to prevent the battery from running out. On the other hand, when the voltage of the vehicle-mounted battery is 11 V or more, the process returns to step S1.

  On the other hand, if the vehicle door is opened after the door lock is released, the intake door 7 remains in the FRE mode (step S6). Further, the first door opening / closing means 37 is left open (step S7). Next, the rotational speed is lowered by the blower operating means 35 while the fan of the blower 2 is kept on (step S21). The air flow is also the same. Next, it is determined whether the voltage of the vehicle battery is less than 11V (step S10). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S11) to prevent the battery from running out. On the other hand, when the voltage of the vehicle-mounted battery is 11 V or more, the process returns to step S1.

  When the engine is turned on (step S2), it is determined whether the air conditioner is on or off based on the air conditioner information from the air conditioner ECU (step S16). When the air conditioner is on, the blower operating means 35 turns on the blower 2 fan (step S17). Further, the first door opening / closing means 37 is closed (step S18). As a result, the air conditioning operation is possible in either the REC mode or the FRE mode. Then, the process returns to step S1.

In the control of the vehicle ventilator of the third embodiment, the vehicle temperature reference and the battery voltage are set in the same manner as in the first embodiment. The rotation speed of the blower 2 is set so that the air volume in the second ventilation state is smaller than the air volume in the first ventilation state. After the occupant has boarded the vehicle, the number of revolutions can be reduced to reduce exposure of the occupant to the airflow of ventilation, thereby reducing discomfort to the occupant. When the rotation speed of the blower 2 in the first ventilation state is high, the air volume is controlled to 100 m ³ / hr, and when the rotation speed of the blower 2 in the second ventilation state is low, the air volume is controlled to 20 m ³ / hr. The setting to do is illustrated.

  Further, the vehicle ventilator of the third embodiment can be placed vertically to have the same configuration as the outside air extrusion mode of the vehicle ventilator 200 of the second embodiment. By using such a vehicle ventilator, the number of components can be reduced and the cost can be reduced.

(Other embodiments)
In the first embodiment, there are two types of ventilation states of the outside air extrusion mode and the forced exhaust mode, and the ventilation state is switched from the outside air extrusion mode to the forced exhaust mode with the opening of the door as a trigger. As an alternative, the forced exhaust mode may be switched to the outside air extrusion mode when the door is opened. Furthermore, in 3rd Embodiment, it was set as the external air extrusion mode with many airflows in the 1st ventilation state, and was set as the external air extrusion mode with few airflows in the 2nd ventilation state, However, It is good also as stopping ventilation in a 2nd ventilation state.

(Evaluation of in-vehicle temperature in the form of switching the ventilation mode: Example 1)
The vehicle ventilator 200 of the second embodiment that switches the ventilation mode using the vehicle ventilator 200 was evaluated for the temperature rise of the in-vehicle temperature. FIG. 10 shows a distribution diagram of the in-vehicle temperature after a predetermined time has elapsed. FIG. 10A is a distribution diagram of the temperature inside the vehicle immediately before ventilation, FIG. 10B is a distribution diagram of the interior temperature 30 seconds after the start of ventilation, and FIG. 10C is a distribution diagram of the interior temperature 60 seconds after the start of ventilation. The test was a wind tunnel test using an actual vehicle, and the blower was operated at a flow rate of 400 m ³ / hr. After the start of ventilation, 0 second to 60 seconds were set to the outside air extrusion mode, and after 60 seconds after the start of ventilation, the forced exhaust mode was set. The environmental conditions were an outside air temperature of 35 ° C., a humidity of 70% RH, and a solar radiation of 0.77 KW / m ² . Immediately before ventilation, the temperature around the head of the driver's seat 64 reaches 60 to 65 ° C. Thereafter, ventilation is performed in the outside air extrusion mode, and the staying air in the vehicle is stirred, so that the temperature around the head is reduced by approximately 10 ° C. to 50 to 55 ° C. in 60 seconds after the start of ventilation. Furthermore, it ventilated in forced exhaust mode after this. If ventilation is not performed, the temperature rises again due to the radiant heat of the instrument panel. However, the temperature around the head of the driver's seat 64 was maintained at 50 to 55 ° C. by ventilating in the forced exhaust mode. Therefore, it can be said that the vehicle ventilation device that switches the ventilation mode is effective in reducing the temperature of the parked vehicle.

(Evaluation of in-vehicle temperature in the form of changing the air volume: Example 2)
The vehicle ventilator 200 of the third embodiment, which uses the vehicle ventilator 200 as the outside air push-out mode and changes the air volume, was evaluated for the temperature rise in the vehicle interior temperature. FIG. 11 shows a distribution diagram of the in-vehicle temperature after a predetermined time has elapsed. FIG. 11 (a) is a distribution diagram of the temperature around the driver's seat 60 seconds after the start of ventilation in the first ventilation state (fan operating voltage is 12V) with a large air volume, and FIG. 11 (b) is after the ventilation in the first ventilation state. FIG. 11C shows a distribution diagram of the temperature around the driver's seat after 60 seconds has elapsed after the ventilation is stopped. FIG. 11C shows a second ventilation state (fan operating voltage is 7 V) after ventilation in the first ventilation state. The distribution diagram of the temperature around the driver's seat after the second has elapsed is shown. The vertical axes S1 to S5 indicate the height direction in the vehicle, and the horizontal axes 1 to 5 indicate the length direction in the vehicle. Here, 1 is the front of the vehicle and 5 is the rear of the vehicle. The environmental conditions were an outside air temperature of 35 ° C., a humidity of 70% RH, and a solar radiation of 0.77 KW / m ² . In the first ventilation state with a large amount of air (FIG. 11 (a)), the temperature around the vertical S3 and the horizontal 3 around the head of the driver's seat is 47.5 to 50 ° C, and the surroundings are 45 to 47.5 ° C. It has become. Thereafter, when ventilation is stopped (FIG. 11B), the area in the range of 47.5 to 50 ° C. is enlarged. Therefore, it can be seen that the in-vehicle temperature gradually increases. On the other hand, the area in the range of 47.5 to 50 ° C. is maintained when the second ventilation state is set after the ventilation in the first ventilation state (FIG. 11C). Therefore, it can be said that a vehicle ventilator that reduces the air volume of ventilation is effective in reducing the temperature inside the vehicle.

  The vehicle ventilator according to the present invention can be used not only for a vehicle ventilator but also for a ventilator for simply ventilating a room or the like.

It is the schematic which added the control means to the vehicle ventilator which concerns on 1st Embodiment. It is a figure which shows the air flow of the external air extrusion mode of the vehicle ventilator which concerns on 1st Embodiment. It is a figure which shows the air flow of the forced exhaust mode of the vehicle ventilator which concerns on 1st Embodiment. It is the schematic which shows the air flow in a vehicle when operating the vehicle ventilator which concerns on this embodiment, (a) is the air flow of a normal mode, (b) is the air flow of an external air extrusion mode, (c ) Is a diagram showing an air flow in the forced exhaust mode. It is the schematic which shows the air flow around an instrument panel when operating the vehicle ventilator which concerns on this embodiment, Comprising: (a) is the air flow of external air extrusion mode, (b) is the air flow of forced exhaust mode. FIG. It is a flowchart of the ventilator for vehicles which concerns on 1st Embodiment. It is a figure which shows the air flow of the ventilator for vehicles which concerns on 2nd Embodiment, (a) shows the air flow of a normal mode, (b) shows the air flow of an external air extrusion mode. It is a figure which shows the air flow in the forced exhaust mode of the vehicle ventilator which concerns on 2nd Embodiment. It is a flowchart of the ventilator for vehicles concerning a 3rd embodiment. It is a temperature distribution diagram which shows the test result of the vehicle ventilator of Example 1, (a) is immediately before ventilation, (b) is 30 seconds after the start of ventilation, (c) is the vehicle interior temperature distribution of 60 seconds after the start of ventilation. Show. It is a temperature distribution figure which shows the test result of the vehicle ventilator of Example 2, (a) is 60 second after ventilation start of a 1st ventilation state, (b) stops ventilation after ventilation of a 1st ventilation state, After 60 seconds, (c) shows the distribution of the temperature around the driver's seat after 60 seconds, with the second ventilation state after ventilation in the first ventilation state.

Explanation of symbols

1, Ventilation port 2, Blower 3, Instrument panel 4, Inner space 5, Fire boards 6a, 6b, 6c, Ventilation passage 7, Intake door 8, Car air inlet 9, Outside air introduction path 10, Inside / outside air switching box 11, instrument panel internal communication port 12, first door 13, bypass flow path 14, second door 15, in-car outlet 16, case 17, evaporator 18, filter units 19, 19a, instrument panel vents 21, 22, 23, 24 , 25, 25a, 26, 27, 28, 29, 30, air flow 31, control means 32, door sensor 33, engine ECU
34, inside air sensor 35, blower operating means 36, inside / outside air switching operating means 37, first door opening / closing means 38, second door opening / closing means 39, door lock sensor 41, vehicle interior space 42, vehicle outside 46, instrument panel top retention Air 47, instrument panel internal staying air 48, windshield 49, handle 50, in-vehicle air discharge passage 51, 52, 53, 53a, 54, 55, 56, air flow 60, differential outlet 61, differential duct 62, heater core 63, air Mix door 64, driver's seat 100, 200, vehicle ventilation system

Claims (8)

In ventilator for a vehicle, the first trigger and the first ventilation, it has a ventilation means for changing the second trigger to the second ventilation,
The ventilation means is
A ventilation opening in the vehicle;
A ventilation flow path formed by switching between a first air flow into which the outside air enters the vehicle interior through the ventilation port or a second air flow through which the air in the vehicle interior exits through the ventilation port;
A blower disposed in the ventilation channel;
A door lock sensor for detecting, as the first trigger, a signal that the door lock of the vehicle is released;
A door sensor that detects, as the second trigger, a signal that the door of the vehicle has been opened;
When the door lock sensor detects the release of the door lock, the first air flow is formed as the first ventilation state, and when the door sensor detects the door opening, the second air is set as the second ventilation state. Control means for forming a flow;
Have
And the ventilation channel is
An inside / outside air switching box having an outside air introduction path communicating with the ventilation port, a vehicle air suction port, and an intake door for switching between inside and outside air introduction;
An instrument panel internal communication port for discharging a part or all of the first air flow into the internal space of the instrument panel;
A first door for opening and closing the instrument panel internal communication port;
A bypass flow path that is branched downstream of the blower in the ventilation flow path and joined to the outside air introduction path;
A second door for opening and closing the bypass flow path;
Ventilator for vehicles characterized by having . The first air flow is
Outside air is sucked into the ventilation port,
Outside air sucked into the ventilation port flows through the ventilation channel,
The air flowing through the ventilation channel is discharged from the instrument panel internal communication port to the internal space of the instrument panel,
The air discharged into the internal space of the instrument panel and the staying air in the internal space of the instrument panel are air flows discharged into the vehicle through a structural gap of the instrument panel. The vehicle ventilation device according to claim 1 . The second air flow is
The staying air in the interior space is taken into the internal space of the instrument panel through the structural gap of the instrument panel,
The air taken into the internal space of the instrument panel and the staying air in the internal space of the instrument panel are sucked into the vehicle air intake port,
The air sucked into the air inlet of the vehicle flows through the ventilation channel,
The air flowing through the ventilation channel flows through the bypass channel;
The vehicle ventilation device according to claim 1 or 2 , wherein the air flowing through the bypass passage is an air flow exhausted outside the vehicle through the ventilation port. The in-Sur instrument panel, a vehicle ventilation system according to the internal space and the interior space to claim 1, 2 or 3, characterized in that a instrument panel ventilation hole communicating the instrument panel. The control means includes
Enter engine operation / stop information from the engine control unit,
Input car temperature information from inside air sensor,
Input the door unlock signal,
Enter a signal that the vehicle door has been opened,
And outputting an opening or closing signal to the opening / closing means of the first door,
Outputting an opening or closing signal to the opening / closing means of the second door;
Output a signal for setting the inside air introduction mode or a signal for setting the outside air introduction mode to the inside / outside air switching operation means of the intake door,
Output an on or off signal to the blower operating means,
and,
When the information that the engine is stopped, the information that the vehicle interior temperature is equal to or higher than the predetermined temperature, and the door lock release signal are input, an ON signal is output to the blower operating means, An opening signal is output to the first door opening / closing means, a closing signal is output to the second door opening / closing means, and an outside air introduction mode is output to the inside / outside air switching operation means of the intake door,
Further, when a signal indicating that the vehicle door is opened is input, an ON signal is output to the blower operating means, a close signal is output to the first door opening / closing means, and the second door is output. outputs an open signal to the switching means of the door, the ventilation for a vehicle according to claim 1, 2, 3 or 4, wherein the outputting the signal to inside air introduction mode to outside air switching operation unit of the intake door apparatus. The control means includes
Enter engine operation / stop information from the engine control unit,
Input car temperature information from inside air sensor,
Input the door unlock signal,
Enter a signal that the vehicle door has been opened,
And outputting an opening or closing signal to the opening / closing means of the first door,
Output a signal for setting the inside air introduction mode or a signal for setting the outside air introduction mode to the inside / outside air switching operation means of the intake door,
Outputting a signal indicating the rotational speed of the blower to the blower operating means;
and,
When the information that the engine is in a stopped state, the information that the temperature inside the vehicle is equal to or higher than the predetermined temperature, and the signal for releasing the door lock are input, a signal for setting the predetermined rotational speed is output to the operating means of the blower. And outputting an open signal to the first door opening / closing means, and outputting a signal for setting an outside air introduction mode to the inside / outside air switching operation means of the intake door,
Further, when a signal indicating that the vehicle door has been opened is input, a signal for lowering the rotational speed than the predetermined rotational speed is output to the blower operating means, and the first door opening / closing means is opened. 5. The vehicle ventilator according to claim 2 , wherein the inside / outside air switching operation means of the intake door is left in the outside air introduction mode. The vehicular ventilator according to claim 1, 2, 3, 4, 5 or 6 , wherein the first air flow includes an aroma component and / or negative ions. Vehicle ventilating device according to claim 1, 2, 3, 4 or 7, characterized in that the inclusion of deodorant components and / or sterilization component to the second air stream.

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