JP2012101690A - Cooling system of dashboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooling system of a dashboard for cooling a dashboard.SOLUTION: The cooling system 1 of a dashboard includes a cooling panel 6 disposed on an upper face of the dashboard 4, and a heat radiation unit 24 including a radiator 25 and a fan 26 in an air passage that makes the inside of a vehicle compartment 3 communicate with the outside the vehicle. When a pump 22 and the fan 26 are driven, the upper face of the dashboard 4 is cooled by a cooling liquid, the cooling liquid having a raised temperature is cooled by air in the vehicle compartment 3, and the vehicle compartment 3 is ventilated. The cooling of the dashboard 4 and the ventilation of the vehicle compartment 3 are carried out based on an input and instruction through an operation switch 28 by an occupant and based on a temperature in the vehicle compartment 3. The operation switch 28 can be set to one of an on-mode, an off-mode and an automatic mode. When the operation switch 28 is set to the on-mode, or set to the automatic mode and the temperature in the vehicle compartment 3 is equal to or higher than a predetermined temperature, the dashboard 4 is cooled and the vehicle compartment 3 is ventilated.

Description

  The present invention relates to a dashboard cooling system mounted on a vehicle.

  Japanese Patent Application Laid-Open No. 9-95124 discloses that an exhaust fan provided in a vent opening that communicates between the interior of a vehicle and the outside of the vehicle is rotated to forcibly replace the air in the vehicle interior with the outside air, so that the interior of the vehicle interior is close to the outside temperature. A ventilation device is described that maintains the condition.

  Japanese Patent Laid-Open No. 2006-27461 discloses an instrument panel that introduces outside air into the inner space of the instrument panel, exhausts the accumulated air in the inner space of the instrument panel to the interior space of the instrument panel, and exhausts the accumulated air in the interior of the instrument panel to the outside. Describes a ventilation device that lowers the temperature of the instrument panel surface by lowering the temperature of the interior space.

JP-A-9-95124 JP 2006-27461 A

  In general, a dashboard disposed immediately below a front window panel of a vehicle is likely to become high temperature due to incidence of sunlight. The high temperature of the dashboard increases the temperature in the passenger compartment. In particular, when the amount of solar radiation is high and the temperature is high in summer, the temperature of the dashboard and the temperature of the passenger compartment become extremely high, which gives the passengers an uncomfortable feeling. For this reason, it is desirable to suppress the temperature rise of a dashboard.

  However, the ventilator described in the above-mentioned JP-A-9-95124 ventilates the passenger compartment and lowers the passenger compartment temperature, and does not directly lower the dashboard temperature.

  Moreover, the ventilation apparatus described in the said Unexamined-Japanese-Patent No. 2006-27461 reduces the temperature of the instrument panel surface by ventilating the internal space of an instrument panel, and is a dashboard which becomes high temperature in response to the incidence of sunlight. It does not directly cool the top surface of the glass. For this reason, there is a possibility that the temperature of the dashboard cannot be lowered sufficiently.

  Therefore, an object of the present invention is to provide a dashboard cooling system capable of effectively suppressing a rise in dashboard temperature.

  In order to achieve the above object, the present invention is a dashboard cooling system that suppresses temperature rise of a dashboard of a vehicle, and includes a cooling path, a circulation path, a pump, a radiator, a vehicle interior temperature detection sensor, and a control means. Prepare.

  The cooling path has an inflow port through which the cooling liquid flows in and an outflow port through which the cooling liquid flows, and circulates in the vicinity of almost the entire area of the upper surface of the dashboard. The circulation path connects the inlet and the outlet. The pump is provided in the circulation path and circulates and supplies the coolant recovered from the outlet to the inlet. The radiator cools the coolant flowing through the circulation path. The vehicle interior temperature detection sensor detects the temperature in the vehicle interior. The control means drives the pump when the temperature in the vehicle interior detected by the vehicle interior temperature detection sensor is equal to or higher than the predetermined temperature, and stops the pump when the detected temperature in the vehicle interior is lower than the predetermined temperature.

  In the above configuration, when the temperature in the passenger compartment is equal to or higher than the predetermined temperature, the pump is driven by the control means. When the pump is driven, the coolant flows from the inlet to the cooling path, circulates in the vicinity of almost the entire area of the dashboard, flows out from the outlet, flows through the circulation path, and flows again from the inlet to the cooling path. . The upper surface of the dashboard is cooled by the coolant flowing through the cooling path, and the coolant that has been heated by cooling the dashboard is cooled by the radiator while flowing through the circulation path. On the other hand, when the temperature in the passenger compartment is lower than the predetermined temperature, the pump is stopped. When the pump is stopped, the coolant is not circulated and supplied to the cooling path, and the upper surface of the dashboard is not cooled. As described above, since the upper surface of the dashboard that is heated by the incidence of sunlight is cooled by circulating the coolant having a relatively large specific heat, an increase in the temperature of the dashboard can be effectively suppressed. Moreover, since the temperature rise of a dashboard is suppressed, the temperature rise in a vehicle interior can also be suppressed indirectly. Furthermore, since the pump is driven or stopped according to the temperature in the passenger compartment, if the temperature in the passenger compartment is low and there is no need to suppress the temperature rise in the dashboard and the passenger compartment as in winter, the dashboard If the temperature in the passenger compartment is very high and it is necessary to suppress the temperature rise in the dashboard and the passenger compartment, such as when parked under hot weather in summer, the dashboard may be cooled. it can.

  The dashboard cooling system may include an air passage and opening / closing means, and the radiator may include a radiator and a fan. The air passage communicates the interior of the vehicle with the outside of the vehicle. The opening / closing means can selectively set the ventilation path to an open position where the vehicle interior and the outside of the vehicle communicate with each other and a closed position where the vehicle interior and the outside of the vehicle do not communicate with each other. The radiator is provided in the circulation path and is disposed in the ventilation path so that the coolant flows through the radiator. The fan is provided on at least one of the inside of the passenger compartment and the outside of the radiator and ventilates the radiator. The control means sets the opening / closing means to the open position and drives the fan when the detected temperature in the passenger compartment is equal to or higher than the predetermined temperature, and sets the opening and closing means to the closed position when the detected temperature in the passenger compartment is lower than the predetermined temperature. Set and stop the fan.

  In the above configuration, the radiator has a radiator and a fan, and is provided in an air passage that communicates the interior of the vehicle with the outside of the vehicle. When the temperature in the passenger compartment is equal to or higher than the predetermined temperature, the opening / closing means is set to the open position by the control means and the fan is driven. When the opening / closing means is set to the open position, the air passage communicates between the vehicle interior and the outside of the vehicle. When the fan is driven, air flows through the ventilation path. The heated coolant that circulates inside the radiator is cooled by the air that circulates in the air passage, and the vehicle interior is ventilated. On the other hand, when the temperature in the passenger compartment is lower than the predetermined temperature, the opening / closing means is set at the closed position and the fan is stopped. When the opening / closing means is set at the closed position, the air passage does not communicate between the vehicle interior and the exterior of the vehicle. As described above, since the radiator having the radiator and the fan is provided in the air passage that communicates between the vehicle interior and the outside of the vehicle, the interior of the vehicle interior can be ventilated simultaneously with the cooling of the dashboard. Further, since the pump and the fan are driven or stopped according to the temperature in the vehicle interior, the dashboard can be cooled and the vehicle interior can be ventilated only when the temperature rise in the dashboard and the vehicle interior needs to be suppressed. it can. Further, when the dashboard is not cooled, the air passage does not communicate between the vehicle interior and the exterior of the vehicle, so that the flow of outside air into the vehicle interior is blocked, and excessive use of the air conditioner can be suppressed.

  The dashboard cooling system may include an input unit that inputs an instruction to drive or stop the pump and the fan and an instruction to set the switching unit. The control means drives or stops the pump and the fan and sets the opening / closing means to an open position or a closed position in accordance with an instruction input to the input means regardless of the temperature in the passenger compartment.

  In the above configuration, when an instruction to drive or stop the pump and the fan and an instruction to set the opening / closing means are input to the input means, the control means causes the pump and the fan in accordance with the input instructions regardless of the temperature in the passenger compartment. The fan and the opening / closing means are controlled. Accordingly, the occupant can arbitrarily cool the dashboard and ventilate the passenger compartment according to his / her own judgment.

  The dashboard cooling system may include a solar cell and a battery that convert sunlight into electric power. In this case, the pump and fan are directly driven by power from the solar cell. The control means supplies the battery with the electric power generated by the solar cell when the pump and the fan are stopped.

  In the above configuration, when cooling the dashboard and ventilating the vehicle interior, the power generated by the solar cell is supplied to the pump and fan by the control means, and the dashboard is not cooled and the vehicle interior is not ventilated. The electric power generated by the solar cell is supplied to the battery. The pump and the fan are driven by the electric power directly supplied from the solar cell, and the power generation amount of the solar cell changes in proportion to the amount of solar radiation. Therefore, the driving of the pump and fan changes in proportion to the amount of solar radiation. For this reason, as the amount of solar radiation increases, the flow rate of the coolant supplied to the cooling path and the air volume passing through the radiator increase, and the cooling effect of the dashboard and the ventilation effect of the passenger compartment are improved. Therefore, the dashboard can be cooled and the vehicle interior can be ventilated in accordance with the environmental conditions without controlling the driving of the pump and the fan. In addition, since a sensor for controlling the driving of the pump and the fan is unnecessary, an increase in the number of parts can be suppressed and the system can be simplified. Further, when the dashboard is not cooled and the passenger compartment is not ventilated, the power generated by the solar cell is stored in the battery, so that the generated power can be used effectively.

  According to the present invention, since the upper surface of the dashboard is cooled by the coolant, the temperature rise of the dashboard can be effectively suppressed.

1 is a schematic view of a vehicle 2 on which a dashboard cooling system 1 according to an embodiment is mounted. 1 is a configuration diagram of a dashboard cooling system 1. FIG. It is the top view and sectional drawing of the cooling panel 6.

  Hereinafter, a dashboard cooling system 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a vehicle 2 on which a dashboard cooling system 1 is mounted. FIG. 2 is a configuration diagram of the dashboard cooling system 1. Fig.3 (a) is a top view of the cooling panel 6, and FIG.3 (b) is AA arrow sectional drawing of Fig.3 (a).

  As shown in FIGS. 1 and 2, the dashboard cooling system 1 includes a cooling panel 6, a circulation pipe 10, a solar cell 14, a ventilation duct 17, a pump 22, a radiator 24, an operation switch 28, and a vehicle interior temperature detection sensor 29. And a controller 30, which are mounted on the vehicle 2. The radiator 24 includes a radiator 25 and a fan 26.

  As shown in FIGS. 3A and 3B, the cooling panel 6 includes a cooling pipe 7 and a cover 8. The cover 8 is a thin rectangular box having a first cooling plate 9 a and a second cooling plate 9 b facing each other, and covers the outer periphery of the cooling pipe 7. The first cooling plate 9a is formed of a resin material or the like having desired flexibility and low thermal conductivity (insulating property), and the second cooling plate 9b has desired flexibility and high thermal conductivity (high It is made of a heat conductive resin material or the like.

  The cooling pipe 7 is formed of a resin material having desired flexibility and high thermal conductivity (high heat conductivity), and is held by the cover 8. The inner peripheral surface of the cooling pipe 7 forms a coolant flow path (cooling path). The total length of the cooling pipe 7 is set to be several times the length in the longitudinal direction of the cover 8 (first and second cooling plates 9a, 9b), and the cooling pipe 7 has a plurality of extending along the longitudinal direction of the cover 8. It is arranged inside the cover 8 in a meandering manner so as to have a straight line portion, and circulates almost the entire area inside the cover 8. An inflow side connector (not shown) is fixed to one end (inlet) 7a of the cooling pipe 7, and an outflow side connector (not shown) is fixed to the other end (outlet) 7b. The peripheral edge of the first cooling plate 9a and the peripheral edge of the second cooling plate 9b are joined to each other in a region excluding the opening portions exposing both ends 7a and 7b of the cooling pipe 7.

  As shown in FIGS. 1 and 2, the cooling panel 6 is placed and fixed on the upper surface of the dashboard 4. In this state, the second cooling plate 9 b covers the upper surface of the dashboard 4 over almost the entire area and is in close contact with the upper surface of the dashboard 4. The structure of the cooling panel 6 is not limited to the above. For example, the cooling pipe 7 may be arranged in another shape (for example, a spiral shape) that circulates almost the entire area inside the cover 8. Further, the cooling pipe 7 may be omitted, and the coolant flow path may be formed by the inner surface of the cover 8.

  The circulation pipe 10 includes a first conduit 11 that connects the outlet 22 b of the pump 22 and one end (inlet side connector) 7 a of the cooling pipe 7, the other end (outlet side connector) 7 b of the cooling pipe 7, and the radiator 25. It has the 2nd pipe line 12 which connects inflow port 25a, and the 3rd pipe line 13 which connects outflow port 25b of radiator 25, and inflow port 22a of pump 22. The circulation pipe 10 is formed of a metal material or a resin material having a low thermal conductivity (insulating property). The inner peripheral surface of the circulation pipe 10 forms a flow path (circulation path) for the cooling liquid, and flows through the flow path in a state where the cooling liquid is sealed. The coolant in the circulation pipe 10 flows into the cooling pipe 7 from one end 7a and flows out to the circulation pipe 10 from the other end 7b.

  The solar cell 14 is provided on the roof 5 of the vehicle 2 and converts solar rays into electric power. The power supply line 15 of the solar cell 14 is connected to the battery 16, the valve drive motor 21, the pump motor 23, and the fan motor 27 via the controller 30. The battery 16 is mounted on the vehicle 2 and stores electric power for driving various motors used when the vehicle 2 is started or running. The amount of power generated by the solar cell 14 changes in proportion to the amount of solar radiation, and increases or decreases according to the increase or decrease of the amount of solar radiation.

  The ventilation duct 17 is provided in the interior space of the rear portion of the vehicle 2. A first opening 18 that opens into the passenger compartment 3 behind the rear seat is provided at one end of the ventilation duct 17, and a second opening 19 that opens outside the vehicle is provided at the other end. The inner peripheral surface of the ventilation duct 17 forms a ventilation path. An opening / closing valve (opening / closing means) 20 is provided in the vicinity of the first opening 18 inside the ventilation duct 17. The on-off valve 20 is rotatably supported by the ventilation duct 17 and is selectively set to an open position and a closed position by a valve drive motor 21. The on-off valve 20 at the open / close position opens the air passage, and the open valve 20 at the close position closes the air passage near the first opening 18. When the on-off valve 20 is set to the open position, the air passage communicates the interior of the vehicle compartment 3 with the outside of the vehicle through the first opening 18 and the second opening 19, and the on-off valve 20 is set to the close position. The air passage does not communicate between the interior of the passenger compartment 3 and the outside of the vehicle. The valve drive motor 21 is driven by electric power directly supplied from the solar cell 14. 1 and 2 show a state where the on-off valve 20 is set to the open position. Moreover, you may use the duct for ventilation etc. provided in the vehicle 2 for uses other than this system as the ventilation duct 17 of this system.

  The pump 22 is a centrifugal pump having an impeller that rotates following the rotation shaft of the pump motor 23, and the pressure of the coolant sucked from the inlet 22a is increased by the rotation of the impeller and discharged from the outlet 22b. The pump motor 23 is driven by the electric power supplied directly from the solar cell 14 in a state disconnected from the battery 16, and the amount of power generated by the solar cell 14 changes in proportion to the amount of solar radiation. It changes in proportion to the amount of solar radiation.

  The radiator 24 is disposed in the vicinity of the second opening 19 inside the ventilation duct 17 and is supported on the inner peripheral surface of the ventilation duct 17 via a bracket (not shown). The radiator 25 has a core part composed of tubes and fins, and two tanks located at both ends of the core part. One and the other of the two tanks are provided with an inlet 25a and an outlet 25b, respectively, and the coolant flows from the inlet 25a of one tank, passes through the tube of the core portion, and passes through the other tank. It flows out from the outlet 25b of the tank. The fan 26 rotates following the rotation shaft of the fan motor 27. When the fan 26 rotates, air in the passenger compartment 3 flows into the air passage from the first opening 18, and the air that has flowed in passes through the radiator 25 and flows out from the second opening 19 to the outside of the vehicle. The fan motor 27 is driven by the electric power supplied directly from the solar cell 14 in a state disconnected from the battery 16, and the amount of power generated by the solar cell 14 changes in proportion to the amount of solar radiation. It changes in proportion to the amount of solar radiation.

  The operation switch (input means) 28 receives an input operation from the occupant and outputs information corresponding to the input to the controller 30. The operation switch 28 is selectively set to on, off, and auto by the passenger.

  The vehicle interior temperature detection sensor 29 is provided in the vehicle interior 3, detects the temperature in the vehicle interior 3 every predetermined time, and outputs it to the controller 30.

  An instruction signal from the operation switch 28 and a vehicle interior temperature signal from the vehicle interior temperature detection sensor 29 are input to the controller 30. The controller 30 controls the drive of the valve drive motor 21 based on information corresponding to various inputs from the occupant received by the operation switch 28 and the temperature in the passenger compartment 3 detected by the passenger compartment temperature detection sensor 29. The state of the on-off valve 20 is appropriately changed, and the pump motor 23 and the fan motor 27 are driven or stopped to drive or stop the pump 22 and the fan 26. The drive control of the valve drive motor 21 by the controller 30 includes turning on / off the operation of the valve drive motor 21 and changing the rotation direction. In addition, when driving the pump 22 and the fan 26, the controller 30 supplies the power generated by the solar cell 14 to the pump motor 23 and the fan motor 27 to cut off the supply of power to the battery 16. And when stopping the fan 26, the electric power which the solar cell 14 generated is supplied to the battery 16, and supply of the electric power to the pump motor 23 and the fan motor 27 is interrupted | blocked.

  When the operation switch 28 is set to ON, the controller 30 sets the on-off valve 20 to the open position to drive the pump 22 and the fan 26, and when the operation switch 28 is set to OFF, the controller 30 opens and closes. The valve 20 is set to the closed position, and the pump 22 and the fan 26 are stopped. When the operation switch 28 is set to auto, the controller 30 drives the pump 22 and the fan 26 by setting the on-off valve 20 to an open position or a closed position according to the temperature in the passenger compartment 3. Stop. When the operation switch 28 is set to auto, the controller 30 sets the on-off valve 20 to the open position to drive the pump 22 and the fan 26 when the temperature in the passenger compartment 3 is equal to or higher than a predetermined temperature, thereby driving the vehicle 22. When the temperature in the chamber 3 is lower than the predetermined temperature, the on-off valve 20 is set to the closed position and the pump 22 and the fan 26 are stopped. That is, the controller 30 sets the on-off valve 20 to the open position or the closed position in accordance with the input instruction to the operation switch 28 and the temperature in the passenger compartment 3, and controls to drive or stop the pump 22 and the fan 26. Functions as a means.

  In the dashboard cooling system 1 configured as described above, when the operation switch 28 is set to ON, or when the operation switch 28 is set to auto and the temperature in the passenger compartment 3 is equal to or higher than a predetermined temperature, The coolant discharged from the pump 22 being driven circulates in the order of the first pipe 11 → the cooling pipe 7 of the cooling panel 6 → the second pipe 12 → the radiator 25 → the third pipe 13 → the pump 22. The air in the passenger compartment 3 flows into the air passage from the first opening 18, passes through the radiator 25, and is discharged from the second opening 19 to the outside of the vehicle. Thereby, the upper surface of the dashboard 4 is cooled by the coolant flowing through the cooling pipe 7, and the coolant that has been heated by cooling the dashboard 4 is mainly cooled by the air in the passenger compartment 3. The inside is ventilated. On the other hand, when the operation switch 28 is set to OFF or when the operation switch 28 is set to auto and the temperature in the passenger compartment 3 is lower than a predetermined temperature, the dashboard 4 is cooled and the passenger compartment 3 is ventilated. The power generated by the solar cell 14 is supplied to the battery 16 and stored.

  Moreover, the pump motor 23 and the fan motor 27 are each driven by the electric power directly supplied from the solar cell 14, and the water discharge amount of the pump 22 and the air blowing amount of the fan 26 change in proportion to the amount of solar radiation. For this reason, the flow rate of the coolant flowing into the cooling pipe 7 and the air volume of the air passing through the radiator 25 increase as the sunlight is strong and the amount of solar radiation is large, and the cooling effect of the dashboard 4 and the interior of the passenger compartment 3 are increased. The ventilation effect is improved.

  As described above, according to the dashboard cooling system 1 of the present embodiment, the upper surface of the dashboard 4 that is heated by the incidence of sunlight is cooled by circulating the coolant having a relatively large specific heat. The temperature increase of the board 4 can be effectively suppressed, and the temperature increase in the passenger compartment 3 accompanying the high temperature of the dashboard 4 can be suppressed.

  Further, since the cooling panel 6 is provided on the upper surface of the dashboard 4 without changing the internal structure of the dashboard 4, the present system can be easily applied to an existing vehicle.

  Further, since the radiator 24 is disposed in an air passage that communicates the interior of the vehicle compartment 3 with the outside of the vehicle, the interior of the vehicle compartment 3 can be ventilated simultaneously with the cooling of the dashboard 4.

  Further, when the dashboard 4 is not cooled, the air passage is closed, so that the flow of outside air into the passenger compartment 3 is blocked, and excessive use of the air conditioner can be suppressed.

  Further, when the occupant sets the operation switch 28 to ON or OFF, the on-off valve 20 is set to the open position or the closed position, and the pump 22 and the fan 26 are driven or stopped. As a result, the dashboard 4 can be arbitrarily cooled and the interior of the passenger compartment 3 can be ventilated.

  When the operation switch 28 is set to auto, the dashboard 4 is cooled and the interior of the passenger compartment 3 is ventilated when the temperature in the passenger compartment 3 is equal to or higher than a predetermined temperature. When the temperature is lower than the temperature, the cooling of the dashboard 4 and the ventilation of the passenger compartment 3 are not performed. For this reason, when the temperature in the passenger compartment 3 is low as in winter and there is no need to suppress the temperature rise in the dashboard 4 and the passenger compartment 3, the dashboard 4 is cooled and the passenger compartment 3 is ventilated. If the temperature in the passenger compartment 3 is very high and the temperature rise in the dashboard 4 and the passenger compartment 3 needs to be suppressed, such as when parked under hot weather in summer, the dashboard 4 is cooled. In addition, the inside of the passenger compartment 3 can be ventilated.

  Further, whether or not the dashboard 4 is cooled and whether or not the passenger compartment 3 is cooled is not limited to being set based on both the occupant's intention and the temperature in the passenger compartment 3. It may be set based on a standard. When the temperature is set based only on the temperature in the passenger compartment 3, a thermostat is provided in the passenger compartment 3 in place of the passenger compartment temperature detection sensor 29 and the controller 30, and the sun is turned on in response to an on / off signal from the thermostat. The state of the on-off valve 20 may be switched by controlling the supply destination of the power generated by the battery 14 and the rotation direction of the valve drive motor 21.

  Moreover, since the pump motor 23 and the fan motor 27 are driven by the electric power directly supplied from the solar cell 14 whose power generation amount changes in proportion to the amount of solar radiation, the driving of the pump motor 23 and the fan motor 27 is not controlled. The amount of water discharged from the pump 22 and the amount of air blown from the fan 26 are changed, so that the dashboard 4 can be cooled and the interior of the passenger compartment 3 can be ventilated according to environmental conditions.

  Further, since the valve drive motor 21, the pump motor 23 and the fan motor 27 are driven only by the electric power from the solar cell 14, the operation of the dashboard cooling system 1 does not affect the battery 16.

  In addition, when the dashboard 4 is not cooled and the inside of the passenger compartment 3 is not ventilated, the power generated by the solar cell 14 is supplied to the battery 16, so that the power generated by the solar cell 14 can be used effectively. Can do.

  The method for cooling the dashboard 4 is not limited to the above. For example, a pipe through which the coolant flows may be directly attached to the inside of the upper panel of the dashboard 4. A cooling channel may be formed in the upper panel of the dashboard 4 by forming a flow path through which the coolant flows. A liquid may be circulated.

  Further, the state of the on-off valve 20 may not be changed by the controller 30 but may be changed by an air cylinder, a hydraulic cylinder, or the like.

  Moreover, the method of changing the state of a ventilation path is not limited above. For example, a louver or the like that can be opened and closed in the first opening 18 may be provided, and the occupant may change the louver or the like directly from within the passenger compartment 3, and a valve that opens and closes the second opening 19 according to the wind pressure. Etc., and the air may be changed by opening and closing the valve by circulating the air in the passenger compartment 3 through the air passage by driving the fan 26.

  Further, the rotation direction of the fan 26 is not limited to the above, and may be a reverse direction, or may be appropriately changed by controlling the rotation direction of the fan motor 27 according to environmental conditions.

  Moreover, the arrangement place of the radiator 24 may be other than the air passage that communicates the inside of the passenger compartment 3 and the outside of the vehicle. In this case, the interior of the passenger compartment 3 is not ventilated by driving the fan 26, but the cooling liquid whose temperature has been raised is cooled by the air outside the vehicle, so that the cooling effect of the dashboard 4 is improved.

  Moreover, the arrangement | positioning location of the solar cell 14 is not limited above, For example, the upper surface of the cooling panel 6 on the dashboard 4 may be sufficient. Since the solar cell 14 has higher power generation efficiency as its own temperature is lower, the solar cell 14 is placed on the upper surface of the first cooling plate 9a of the cooling panel 6, and the first cooling plate 9a is used as the second cooling plate. As with 9b, the power generation efficiency of the solar cell 14 can be improved by forming the resin with a high thermal conductivity.

  Moreover, the use of the electric power generated by the solar cell 14 when the dashboard 4 is not cooled and the interior of the passenger compartment 3 is not vented is not limited to the above. For example, an electric heater is provided in the passenger compartment 3 to The electric power generated by 14 may be supplied to an electric heater to be operated.

  The above embodiment is an example of the present invention and can be changed without departing from the present invention.

  INDUSTRIAL APPLICABILITY The present invention is effective for suppressing a temperature rise in a vehicle dashboard and a passenger compartment.

1: Dashboard cooling system 6: Cooling panel 7: Cooling pipe 8: Cover 9a, 9b: First and second cooling plates 10: Circulating pipe 11: First pipe 12: Second pipe 13: Third pipe 14: Solar cell 15: Power supply line 16: Battery 17: Ventilation duct 20: On-off valve 21: Valve drive motor 22: Pump 23: Pump motor 24: Radiator 25: Radiator 26: Fan 27: Fan motor 28: Operation switch 29: Vehicle interior temperature detection sensor 30: Controller

Claims (4)

A cooling passage that has an inflow port through which the cooling liquid flows in and an outflow port through which the cooling liquid flows, and circulates in the vicinity of almost the entire area of the upper surface of the dashboard;
A circulation path communicating the inlet and the outlet;
A pump provided in the circulation path, for circulatingly supplying the coolant recovered from the outlet to the inlet;
A radiator for cooling the coolant flowing through the circulation path;
A vehicle interior temperature detection sensor for detecting the temperature in the vehicle interior;
Control means for driving the pump when the temperature in the vehicle interior detected by the vehicle interior temperature detection sensor is equal to or higher than a predetermined temperature, and stopping the pump when the detected temperature in the vehicle interior is lower than the predetermined temperature; A dashboard cooling system characterized by comprising. The dashboard cooling system of claim 1,
An air passage that communicates the interior and exterior of the vehicle;
An opening / closing means capable of selectively setting the ventilation path to an open position where the interior of the vehicle communicates with the outside of the vehicle and a closed position where the interior of the vehicle does not communicate with the outside of the vehicle;
The radiator is provided in the circulation path and is disposed in the ventilation path so that a coolant flows therethrough, and is provided in at least one of the inside or outside of the radiator to ventilate the radiator. With a fan,
The control means sets the opening / closing means to the open position and drives the fan when the detected temperature in the passenger compartment is equal to or higher than a predetermined temperature, and when the detected temperature in the passenger compartment is lower than a predetermined temperature, The dashboard cooling system, wherein the opening / closing means is set at the closed position and the fan is stopped. A dashboard cooling system according to claim 2,
An input means for inputting an instruction to drive or stop the pump and the fan, and a setting instruction for the switching means;
The control means drives or stops the pump and the fan in accordance with an instruction input to the input means regardless of the temperature in the passenger compartment, and sets the opening / closing means to the open position or the closed position. A dashboard cooling system characterized by A dashboard cooling system according to claim 2 or claim 3,
Solar cells that convert solar rays into electricity;
A battery, and
The pump and the fan are directly driven by electric power from the solar cell,
The dashboard cooling system, wherein when the pump and the fan are stopped, the control means supplies the battery with electric power generated by the solar cell.

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