JP2006282109A - Ventilator for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the intra-vehicle temperature with a low power consumption in a short time by introducing such a structure that an HVAC having an evaporator furnished with a coldness accumulating agent is equipped with a ventilation mode to lead in the external air and a ventilation mode to execute a forced exhaust of air from the vehicle and changing over the two ventilation modes according to the temperature situation of the external air and the evaporator through utilization of the calorific value of the cooled coldness accumulating agent. <P>SOLUTION: A ventilator 100 for a vehicle is equipped with a vent 1, aeration passages 6a, 6b, 6c to form a first air flow and a second air flow in changing-over, a floor 2, an evaporator 17 in which the coldness accumulating agent 72 is installed, and a control means 31 to form the first air flow when the external air temperature lies at the evaporator temperature or above, and when below, form the second air flow. <P>COPYRIGHT: (C)2007,JPO&INPIT

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 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.

In recent years, in order to cope with environmental problems, when the vehicle is stopped waiting for a signal, the automobile is required to stop idling, and therefore, power is not supplied to the components of the air conditioner. In such a case, in order to reduce the temperature inside the vehicle, it is necessary to provide a battery separately from the power source of the vehicle and exhaust the heat inside the vehicle by this battery, or to cool the vehicle rapidly by the air conditioner after restarting the vehicle. is there. However, even if a battery other than the power source of the vehicle is prepared, the power consumption of the air conditioner is large, which is not economical and practical. Even if rapid cooling is performed after restarting, it is necessary to lower the temperature of the evaporator again, and it is not possible to obtain cold air before parking in a short time.
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. Even inside the car, the heat capacity can be exhausted intensively to reduce power consumption associated with ventilation. 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. Since outside air that is lower than the vehicle interior temperature is introduced, power consumption associated with ventilation can be suppressed. Here, a regenerator is provided in the evaporator (hereinafter referred to as an “evaporator with a regenerator”), and the amount of heat of the cooled regenerator is used for ventilation. It can be expected to reduce the temperature.

  The present invention provides a vehicle air conditioner (hereinafter referred to as “HVAC”) having an evaporator with a regenerator, which is provided with a ventilation mode for introducing outside air and a ventilation mode for forcibly exhausting air inside the vehicle. The purpose of the present invention is to provide a vehicle ventilator that can reduce the temperature inside the vehicle in a short time by switching between the two ventilation modes according to the temperature conditions of the outside air and the evaporator in order to use the heat quantity of To do. 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.

  In order to solve the above-described problems, a vehicle ventilator according to the present invention includes a ventilation port provided in a vehicle, and a first air flow through which the outside air enters the vehicle interior through the ventilation port or air in the vehicle interior through the ventilation port. A ventilation flow path formed by switching the second air flow exiting the passenger compartment, a blower disposed in the ventilation flow path, an evaporator disposed in the ventilation flow path and incorporating a cold storage agent, and an outside air temperature being the evaporator Control means for forming the first air flow when the temperature is equal to or higher than the temperature, and forming the second air flow when the outside air temperature is lower than the temperature of the evaporator.

  In the vehicle ventilator according to the present invention, a cold storage temperature sensor is provided in the ventilation channel, and the temperature of the evaporator is detected by the cold storage temperature sensor. Ventilation can be controlled with high accuracy by providing a cold storage temperature sensor, for example, by directly detecting the temperature of the cold storage agent.

  Further, in the vehicle ventilator according to the present invention, the ventilation channel has an outside air introduction path communicating with the ventilation port, an interior air intake port, and an intake door for switching between inside and outside air introduction. A 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, a first door that opens and closes the instrument panel internal communication port, and the blower of the ventilation channel. It is preferable to have a bypass flow path branched downstream and joined to the outside air introduction path, and a second door for opening and closing the bypass flow path. The vehicle ventilator according to the present invention can be incorporated into the HVAC.

  In the vehicle ventilation device according to the present invention, the first air flow is such that outside air is sucked into the ventilation port, and the outside air sucked into the ventilation port flows through the ventilation channel via the evaporator, Air that has flowed through the passage is discharged from the instrument panel internal communication port into the inner space of the instrument panel, and the air discharged into the inner space of the instrument panel and the accumulated air in the inner space of the instrument panel form gaps in the structure of the instrument panel. The air flow is discharged into the vehicle through the vehicle. The first air flow is made possible by setting the vehicle ventilator according to the present invention to the outside air introduction mode. In the outside air introduction mode, outside air is introduced into the inner space of the instrument panel, the outside air is cooled with a cool storage agent, and both the cooled outside air and the staying air inside the instrument panel (hereinafter referred to as “instrument staying inside the instrument panel”) are introduced into the vehicle. Further, in this mode, stagnant air in the vehicle interior space (hereinafter referred to as “in-car retained air”) is pushed out of the vehicle together with the air introduced into the vehicle interior.

  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 (hereinafter referred to as “instrument upper part staying air”) are sucked through the instrument panel gap 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 introduction mode, it is possible to introduce the outside air discharged from the instrument panel internal communication port and the air staying in the instrument panel to a specific location 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 temperature information from an internal air sensor, inputs the outdoor air temperature from an external air sensor, and stores the cold storage. The temperature of the evaporator is input from a temperature sensor, an open / close signal is output to the opening / closing means of the first door, an open / close signal is output to the opening / closing means of the second door, and the intake door 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, an on / off signal is output to the blower operation means, and the engine is in a stopped state. When the information that the vehicle interior temperature is equal to or higher than the predetermined temperature, the outside air temperature, and the temperature of the evaporator are input, the outside air temperature is equal to or higher than the temperature of the evaporator. When it is determined that there is an output, an on signal is output to the blower operating means, an open signal is output to the first door opening and closing means, and a closing signal is output to the second door opening and closing means, Output a signal for setting the outside air introduction mode to the inside / outside air switching operation means of the intake door, and when determining that the outside air temperature is lower than the temperature of the evaporator, output an on signal to the operation means of the blower, 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 an inside / outside air switching operation means of the intake door is output to the inside air introduction mode. including. When the inside temperature rises above a predetermined temperature during parking, the outside air introduction mode is activated when the outside air temperature is above the evaporator temperature. As a result, the inside of the vehicle is cooled with the outside air cooled by the cold storage agent while the inside air that has become hot during parking is excluded from the outside of the vehicle. When the outside air temperature is lower than the evaporator temperature, the forced exhaust mode is operated. Accordingly, the outside air that has been raised in temperature by the cold storage agent in a high temperature state is not introduced into the vehicle, but the high-temperature instrument panel internal air and the instrument panel upper air are excluded. By switching the ventilation mode, the vehicle interior temperature can be reduced in a short time with low power consumption.

  Further, the vehicle ventilation device according to the present invention includes ventilation by the control means when the vehicle is idling stopped. In the case where the HVAC air conditioning operation cannot be performed because the engine is off as in idling stop, the vehicle interior temperature can be reduced in a short time with low power consumption.

  The vehicle ventilator according to the present invention is provided with a ventilation mode for introducing outside air and a ventilation mode for forcibly exhausting the air inside the vehicle in an HVAC having an evaporator with a cold storage agent so as to use the amount of heat of the cooled cold storage agent. By switching between the two ventilation modes according to the temperature conditions of the outside air and the evaporator, the vehicle interior temperature can be reduced in a short time with low power consumption.

  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.

(First embodiment)
The vehicle ventilator according to the present embodiment 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 from the vehicle interior that exits the vehicle interior through the ventilation port. A ventilation channel formed by switching the air flow, a blower arranged in the ventilation channel, an evaporator arranged in the ventilation channel and incorporating a cold storage agent, and an outside air temperature equal to or higher than the temperature of the evaporator Control means for forming the first air flow and forming the second air flow when the outside air temperature is lower than the temperature of the evaporator.

  In the vehicle ventilator according to the present embodiment, a cold storage temperature sensor is provided in the ventilation passage, the temperature of the evaporator is detected by the cold storage temperature sensor, and the ventilation passage communicates with the ventilation port. An inside / outside air switching box having an outside air introduction path, a vehicle interior air inlet, and an intake door for switching between introduction of inside and outside air, and instrument panel internal communication for discharging a part or all of the first air flow to the interior space of the instrument panel A first door that opens and closes the opening inside the instrument panel, a bypass passage that is branched downstream of the blower in the ventilation passage, and is connected to the outside air introduction passage, and the bypass flow And a second door that opens and closes the road.

  This embodiment will be described with reference to a vehicle ventilation device 100 shown in FIGS. FIG. 1 is a schematic view showing an embodiment of a vehicle ventilation device of the present embodiment. FIG. 2 is a schematic view of a cross section of the evaporator according to the present embodiment. The vehicle ventilation device 100 includes a ventilation port 1 provided on a wall surface of a fire board 5 of the vehicle, a blower 2, an evaporator 17 incorporating a cold storage agent 72, and a control unit 31. In addition, the vehicle ventilation device 100 includes an outside air sensor 73, a cold storage temperature sensor 74, an inside / outside air switching box 10 that is an intake portion, and an air flow that is a flow path of air from the ventilation port 1 to the vehicle outlet 15. Passages 6 a, 6 b, 6 c, an air flow path 75 that is a flow path of air passing through the evaporator 17, an instrument panel internal communication port 11 provided on the side wall of the case 16, and a first panel that opens and closes the instrument panel internal communication port 11. And a door 12. The ventilation channels 6 a, 6 b, 6 c 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 passage 13 that is branched downstream of the blower 2 among the ventilation passages 6 a, 6 b, and 6 c and joined to the outside air introduction passage 9 that communicates with the ventilation port 1. 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 an engine control device (engine ECU 33) in addition to the control means 31, the outside air sensor 73, and the cold storage temperature sensor 74. The inside air sensor 34 for monitoring the temperature of the vehicle interior space, the blower operating means 35, the inside / outside air switching operating means 36 for switching between the outside air introduction mode (FRE mode) and the inside air introduction mode (REC mode), and the first door 12 At least an opening / closing means 37 and an opening / closing means 38 for the second door 14 are provided.

  The ventilation port 1 is an intake port for taking outside air into the vehicle when the vehicle ventilator 100 is used in the outside air introduction 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.

  Although the evaporator 17 of FIG. 1 showed what incorporated the cool storage agent 72 in the inside, arrangement | positioning of the cool storage agent 72 is not specifically limited in this embodiment, For example, it is assumed that the cool storage agent 72 is arrange | positioned downstream of an evaporator, for example. good. Further, the regenerator 72 may be housed in a container made of plastic, for example (hereinafter, this container is referred to as a “regenerator”) and incorporated in the evaporator 17. The material of the regenerator 72 is not particularly limited. For example, it may be a latent heat type regenerator such as ice or an organic compound, or a sensible heat regenerator such as a metal or an inorganic compound. Examples of the latent heat type cold storage agent include halogenated hydrocarbons, alcohols having 2 to 10 carbon atoms, ketones, ethers, and aqueous solutions of inorganic salts. When making the cool storage agent 72 into aqueous solution, it accommodates in a cool storage and incorporates in the evaporator 17. FIG. There are no particular limitations on the material, dimensions, and shape of the regenerator.

FIG. 2 is a schematic diagram of a cross section AA ′ of the evaporator 17 shown in FIG. The evaporator 17 includes at least flow pipes 78 a and 78 b through which the refrigerant 79 flows, a ventilation flow path 75 formed between the flow pipes 78 a and 78 b, and fins 77 provided in the ventilation flow path 75. A regenerator 71 is provided in the ventilation channel 75. The regenerator 71 of FIG. 2 has a container shape and houses a regenerator 72 therein. Further, a cold storage temperature sensor 74 is provided. Although not shown in FIG. 2, the flow pipes 78 a and 78 b may be connected on their extensions to form a flow of the refrigerant 79. The fins 77 are for increasing the surface area so that the air flow 76 flowing through the ventilation channel 75 is quickly cooled by heat exchange. Although the structure of the evaporator 17 in this embodiment is not specifically limited, A plate fin type, corrugated fin types, such as a serpentine type and a drone cup type, are illustrated. The refrigerant is not particularly limited, but CH ₂ FCF ₃ is preferable. The fins are not particularly limited, but louver fins and slit fins are exemplified.

  The cold storage temperature sensor 74 is a sensor that detects the temperature of the evaporator 17. The temperature of the evaporator 17 in the present invention may be, for example, the temperature of the refrigerant 79 in the evaporator 17, the surface temperature of the flow tubes 78 a and 78 b, or the surface temperature of the fins 77. Moreover, the temperature of the cool storage agent 72 may be sufficient and the temperature of the surface of the cool storage device 71 may be sufficient. Furthermore, it may be the temperature of the space in which the ventilation channel 75 is formed. Among these, the temperature of the regenerator 72 and the surface temperature of the regenerator 71 are suitable for the temperature of the evaporator 17 of the present invention. The cool storage agent 72 and the cool storage unit 71 directly cool the outside air to be introduced, and the ventilation can be controlled with high accuracy by detecting these temperatures. The arrangement of the cold storage temperature sensor 74 is not particularly limited. Any arrangement suitable for detecting the above-described temperature may be used. The cold storage temperature sensor 74 may be a contact type sensor such as a thermistor, a thermocouple, or a platinum resistance temperature detector, or may be a non-contact type sensor such as a thermopile. Further, a post-evaporation sensor mounted on a normal vehicle may be a cold storage temperature sensor. The outside air sensor 73 is a sensor that detects the temperature of outside air. The outside air sensor 73 may be an outside air sensor that is mounted on a normal vehicle.

  The vehicle ventilator 100 according to the present embodiment compares the outside air temperature and the temperature of the evaporator 17 and switches between the first air flow and the second air flow based on the result. When the outside air temperature is equal to or higher than the temperature of the evaporator 17, the ventilation mode is set to the outside air introduction mode, and the outside air cooled by the cool storage agent 72 is discharged into the vehicle interior. When the outside air temperature is lower than the temperature of the evaporator 17, the ventilation mode is set to the forced exhaust mode. Therefore, the outside air is not further heated by the cold storage agent 72 and discharged into the passenger compartment. The conditions for switching between the first air flow and the second air flow are the case where the outside air temperature is equal to or higher than the temperature of the evaporator 17 and the case where the outside air temperature is lower than the temperature of the evaporator, but the case where the outside air temperature exceeds the temperature of the evaporator and the outside air The temperature may be equal to or lower than the evaporator temperature.

  The vehicle instrument panel 3 shown in FIG. 1 is configured to house and partition a vehicle compartment when components such as vehicle instruments and HVAC units are arranged between the fire board 5 and the driver / passenger seat. It is. 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. However, many of these components 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 introduction mode, the blower 2 is actuated by the hole for pushing out the outside air taken into the vehicle ventilator 100 by the operation of the blower 2 and discharged from the instrument panel internal communication port 11 and the retained air inside 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 first door 12 is opened and the vehicle ventilator 100 is operated in the outside air introduction mode, part or all of the flow formed by the blower 2 is guided to the internal space 4 of the instrument panel. When the vehicular ventilator 100 is operated in the forced exhaust mode with the first door 12 closed, the instrument panel internal stagnant air, the instrument panel top stagnant air and the vehicle stagnant 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. If the vehicle ventilator 100 is operated in the outside air introduction mode when the second door 14 is closed, the outside air flows into the bypass channel 13 and flows out of the vehicle when introducing the outside air 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.

  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 introduction mode and a second air flow in the forced exhaust mode, which are obtained by the outside air temperature and cold storage temperature sensor 74 obtained by the outside air sensor 73. Switch according to the temperature relationship of the evaporator. First, the first air flow in the outside air introduction 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. When the air flow 22 passes through the evaporator 17, an air flow 76 is formed in a ventilation flow path 75 that is a flow path inside the evaporator 17. The air flow 76 passes through the ventilation channel 75 while being cooled by the cool storage agent 72 cooled during the air conditioning operation, and forms the air flow 23 in the ventilation channel 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 introduction 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. In the outside air introduction mode, the first door 12 is in an open state, and a part of the air flow 23 flows out into the internal 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 positive. 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 into the vehicle interior space 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.

  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 to this, the vehicle interior air becomes an air flow 28 toward the vehicle interior 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, 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, becomes an air flow 30, and is exhausted outside the vehicle through the ventilation port 1 of the HVAC. Also in the second air flow, an air flow 76 passing through the inside of the evaporator 17 may be formed. In this case, the air flow 76 flows while touching the regenerator 71 having a temperature higher than the outside air temperature, so that the air flow 23 is not cooled, but there is no problem because it is exhausted outside the passenger compartment.

  FIG. 5 shows the air flow in the vehicle interior space. In order to compare the air flow in the outside air introduction mode and the forced exhaust mode with the vehicle ventilator 100 according to the present embodiment, first, the air flow in the normal mode of the HVAC is shown in FIG. FIG. 5A shows the REC mode as an example of the normal mode. The HVAC intake door 7 is in the REC mode. Due to the operation of the blower 2, the air in the vehicle 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. 5B shows the air flow in the outside air introduction mode by the vehicle ventilator 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. 3 and becomes the air flow 25 discharged from the instrument panel vent 19 to the vehicle interior space. 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, the vehicle interior space 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 through the vehicle 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. 4 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 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 an 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, the vehicle ventilator 100 has an instrument panel ventilation hole 19 communicating with the interior space of the vehicle, so that the air in the vehicle flows toward the internal 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 an air flow 30 that is exhausted to the outside of the vehicle 42 through the ventilation port 1 together with the air flow 26.

  FIG. 6A shows the air flow around the instrument panel 3 in the outside air introduction 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 both the outside air introduced into the inner space 4 of the instrument panel and the air staying in the instrument panel are exhausted into the vehicle interior space 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 becomes an air flow 53 that pushes out the instrument panel upper stay air between the instrument panel 3 and the windshield to the rear of the vehicle interior space. Moreover, it is preferable that a part or all of the instrument panel ventilation hole 19a is directed to the handle of the vehicle. FIG. 6A is a diagram showing that the instrument panel ventilation hole 19a is directed to the handle. Due to the influence of solar radiation during parking, not only the surface of the instrument panel 3 but also the handle becomes hot. An increase in the temperature of the steering wheel causes discomfort to the passenger and further affects the driving of the passenger. Therefore, it is desirable to reduce the temperature of the handle. The air flow 25a formed by the instrument panel ventilation hole 19a is exhausted into the vehicle interior space to become an air flow 53a. When the air flow 53a is blown onto the handle, the heat of the handle that is as high as the surface of the instrument panel 3 can be taken away, and the temperature of the handle can be lowered.

  FIG. 6B shows the air flow around the instrument panel 3 in the forced exhaust mode. The vehicle air inlet 8 of the vehicle ventilator 100 according to the present embodiment is an instrument panel internal air that is retained in the instrument panel internal space 4 and an instrument panel air that flows into the instrument panel internal space 4 through the instrument panel vent hole 19. It is preferable to inhale both upper stagnant air. When the instrument panel vent hole 19 is provided in the instrument panel 3, the internal air staying in the instrument panel becomes an air flow 26 by the operation of the blower 2, and is sucked into the vehicle air inlet 8. The air flow 27 flows into the internal space 4. During parking, the instrument panel 3 becomes hot due to direct sunlight, and radiant heat from the instrument panel 3 makes the instrument panel upper stay air and the instrument panel internal stay air between the windshield and the instrument panel 3 extremely hot. On the other hand, for example, even if only the instrument panel internal air is forcibly exhausted to the outside by the vehicle ventilator 100, the residual temperature in the interior of the instrument panel is reduced due to the residual air remaining in the instrument panel. It won't be urgent. Therefore, the instrument panel internal stay air and the instrument panel upper stay air 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, inputs outside air temperature from the outside air sensor 73, and inputs cold air temperature from the cold storage temperature sensor 74 to the evaporator. Enter the temperature. 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. 7 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. The engine operating state is determined from the engine ECU 33 (step S1), and if it is off, it is determined whether or not the vehicle interior temperature is 40 ° C. or higher based on the value of the inside air sensor 34 (step S2). When the in-vehicle temperature is lower than 40 ° C., the blower 2 remains off (step S10) 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 S3). When the voltage of the vehicle battery is less than 12V, the flow returns to step S1 with the blower 2 turned off (step S10) to prevent the battery from running out. On the other hand, when the voltage of the on-vehicle battery is 12 V or higher, it is determined whether or not the outside air temperature is equal to or higher than the temperature of the evaporator 17 (step S4). If the outside air temperature is equal to or higher than the temperature of the evaporator 17, 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 S5). Further, the first door opening / closing means 37 is opened (step S6), and the second door opening / closing means 38 is closed (step S7). Next, the blower operating means 35 turns on the fan of the blower 2 (step S8). 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, is cooled by the cold storage agent 72 in the ventilation channel 75, 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 or not the voltage of the in-vehicle battery is less than 11V (step S9). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S10) 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 outside air temperature is lower than the evaporator temperature, the intake door 7 is set to the REC mode by the inside / outside air switching operating means 36 of the intake door 7 (step S11). The first door opening / closing means 37 is closed (step S12), and the second door opening / closing means 38 is opened (step S13). Next, the blower operating means 35 keeps the blower 2 fan on (step S14). 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. Although the air flow 23 flows toward the in-vehicle outlet 15, the second door opening / closing means 38 provided in the ventilation flow path 6 c is open, so that the air flow 23 flows into the bypass flow path 13 and the 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 or not the voltage of the in-vehicle battery is less than 11V (step S9). When the voltage of the in-vehicle battery is less than 11 V, the fan of the blower 2 is turned off (step S10) 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 S1), it is determined whether the air conditioner is on or off based on the air conditioner information from the air conditioner ECU (step S15). When the air conditioner is on, the blower operating means 35 turns on the fan of the blower 2 (step S16). Further, the first door opening / closing means 37 is closed (step S17), and the second door opening / closing means 38 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 flowchart of FIG. 7, 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. 7 shows a flow for preventing the battery from being exhausted by the voltage of the on-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.

  As described above, when the temperature inside the vehicle rises during parking, the HVAC is operated in the ventilation mode without turning on the engine. At this time, since the cool storage agent arranged around the evaporator of the HVAC is cooled during the air conditioning operation, the outside air for ventilation is passed through the periphery of the cool storage agent to introduce the cooled outside air into the vehicle. Can do. By introducing the cooled outside air, the in-vehicle temperature can be reduced in a short time. In addition, the temperature inside the vehicle can be effectively reduced by intensively exhausting the air at a particularly high temperature in the vehicle. Furthermore, in order to use the quantity of heat of the cooled regenerator, the two ventilation modes are switched depending on the temperature of the outside air and the evaporator. Therefore, the vehicle ventilator of the present embodiment can reduce the vehicle interior temperature in a short time. In addition, the vehicle ventilator of the present embodiment has fewer components for supplying electric power and can reduce power consumption as compared with the HVAC air conditioning operation. In addition, since the cool storage agent is disposed around the evaporator, the temperature rise of the evaporator can be suppressed, and the air conditioning operation after the engine is turned on can reach the desired temperature in a short time. Such ventilation can reduce discomfort caused by heat when the passenger gets on. The ventilation according to the present invention is particularly effective when, for example, idling is stopped while waiting for a signal, or when the vehicle is parked for a short time in order to have lunch and then re-boarded immediately.

(Second Embodiment)
8 and 9 are schematic views showing a vehicle ventilation device 200 which is another embodiment of the vehicle ventilation device 100. 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. 8A), 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. Exhausted into the car.

  Next, the flow of air in the outside air introduction mode of the vehicle ventilator 200 will be described with reference to FIG. The intake door 7 is set to the FRE mode. By the operation of the blower 2, outside air is taken in from the ventilation port 1, passes through the blower 2, is cooled by the cold storage agent 72, 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 introduction 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 vent 19 into the vehicle.

  The flow of air in the forced exhaust mode of the vehicle ventilator 200 will be described with reference to FIG. The intake door 7 is set to the REC mode. Due to the operation of the blower 2, the air staying in the instrument panel, the air staying in the upper part of the instrument panel, and the air inside the vehicle are taken in from the air inlet of the vehicle, pass through the blower 2, and form an air flow 22 in the ventilation channel 6 b. 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 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.

(Other embodiments)
In the first embodiment and the second embodiment, there are two types of ventilation modes, an outside air introduction mode and a forced exhaust mode, and the outside air introduction mode is switched to the forced exhaust mode depending on the magnitude relationship between the outside air temperature and the evaporator temperature. However, as another embodiment, for example, ventilation may be performed in the outside air introduction mode or the forced exhaust mode when the outside air temperature is equal to or higher than the evaporator temperature, and the ventilation may be stopped when the outside air temperature is lower than the evaporator temperature.

  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 schematic diagram of the cross section A-A 'of the evaporator of 1st Embodiment. It is a figure which shows the air flow of the external air introduction 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, Comprising: (a) is the air flow of normal mode, (b) is the air flow of external air introduction mode, (c ) Is a diagram showing an air flow in the forced exhaust mode. It is the schematic which shows the air flow around the instrument panel when operating the vehicle ventilator which concerns on this embodiment, Comprising: (a) is the air flow of an external air introduction mode, (b) is the air flow of a 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 introduction mode. It is a figure which shows the air flow in the forced exhaust mode of the vehicle ventilator which concerns on 2nd Embodiment.

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 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 41, vehicle interior 42, vehicle outside 46, instrument panel upper staying air 47, instrument panel inner staying air 47 48, windshield 49, handle 50, in-vehicle air discharge path 51, 52, 53, 53 a, 54, 55, 56, air flow 60, differential outlet 61, differential duct 62, heater core 63, air mix door 71, regenerator 72 , Cool storage agent 73, outside air sensor 74, cool storage temperature sensor 75, ventilation passage 76, air flow 77, fins 78a and 78b, flow pipe 79, refrigerant 100 and 200, vehicle ventilation system.

Claims (8)

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;
An evaporator disposed in the ventilation channel and incorporating a regenerator;
Control means for forming the first air flow when the outside air temperature is equal to or higher than the temperature of the evaporator, and forming the second air flow when the outside air temperature is lower than the temperature of the evaporator;
Ventilator for vehicles characterized by having.   The vehicle ventilation device according to claim 1, wherein a cold storage temperature sensor is provided in the ventilation flow path, and the temperature of the evaporator is detected by the cold storage temperature sensor. 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;
The vehicle ventilation device according to claim 1, wherein the vehicle ventilation device is provided. The first air flow is
Outside air is sucked into the ventilation port,
The outside air sucked into the ventilation port flows through the ventilation channel via the evaporator,
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 3. 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 ventilator according to claim 3 or 4, wherein the air flowing through the bypass passage is an air flow exhausted outside the vehicle through the ventilation port.   The vehicle ventilation device according to claim 3, 4 or 5, wherein an instrument panel ventilation hole is provided in the instrument panel so as to communicate the interior space of the instrument panel with the interior space of the vehicle. The control means includes
Enter engine operation / stop information from the engine control unit,
Input car temperature information from inside air sensor,
Input the outside air temperature from the outside air sensor,
Input the temperature of the evaporator from the cold storage temperature sensor,
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, the outside air temperature, and the temperature of the evaporator are input,
When it is determined that the outside air temperature is equal to or higher than the evaporator temperature, an ON signal is output to the blower operating means, an open signal is output to the first door opening / closing means, and the second door Outputs a closing signal to the opening / closing means, and outputs a signal for setting the outside air introduction mode to the inside / outside air switching operation means of the intake door,
When it is determined that the outside air temperature is lower than the temperature of the evaporator, 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 The vehicle ventilator according to claim 3, 4, 5 or 6, wherein an opening signal is outputted to the opening / closing means and a signal for setting the inside air introduction mode is outputted to the inside / outside air switching operation means of the intake door. 8. The vehicle ventilation device according to claim 1, wherein ventilation by the control means is performed when the vehicle is idling stopped.

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