JPS6078809A - Automobile with electronic machinery - Google Patents

Abstract

PURPOSE:To make comfortable the cooling/heating by the cooling/heating air conditioner of an automobile at the time of starting of its operation, by using numerous solar cells to drive a Peltier effect utilization cooler or heater. CONSTITUTION:Before the operation of an automobile, a cover 1 fitted with amorphous solar cells 1' is provided on the roof and window of the automobile. The electricity of the solar cells 1' of the cover 1 is applied to an electronic cooler or heater 3 through a connector 4 and cords 5a, 5b to drive the cooler or heater. As a result, effectual cooling or heating is enabled as soon as the starting of the operation of the automobile in summer or winter to enhance the comfortableness inside the automobile.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automobile equipped with electronic equipment that performs auxiliary heating and cooling using the Beltier effect.

[Prior art]

Conventionally, single-circle heating for automobiles and the like utilizes the heating of cooling water by driving the engine and the heat supplied by the circulation of the heated cooling water. On the other hand, the air conditioning inside the vehicle utilizes the cooling effect of a compressor that applies the driving force of the engine.

However, in extremely cold weather, such heating typically requires approximately 10 minutes or more to bring the interior of the vehicle to an appropriate temperature after the start of operation. On the other hand, cooling the inside of a car during extremely hot weather also had the following drawbacks.

Under the scorching sun, the incident energy from direct sunlight is 100
OW/m', the energy that enters the car through the window is approximately 500 Kj5 depending on the time of day, direction, etc.
K,,il/m',h (approximately 580 W/n?), for example in a small passenger car, taking into account the window area, etc.
It is said that the power is approximately 860 φ (approximately 1000 W). Also, depending on the color tone and other surface conditions of the parts that are not reflected in the incident energy, the steel plate parts of this car absorb approximately 100 to 200 Kdl of energy, which causes an increase in temperature inside the car. . Then, the temperature difference between the inside of the car and the outside air reaches about 20 to 30°C, and this steel plate section loses its balance due to heat dissipation through radiation and convection, resulting in the so-called "hot tin roof" phenomenon. However, in the car as a whole, heat is initially transferred from the hot steel plate through the interior materials into the interior of the car by conduction and convection, but normally the heat transfer resistance of this interior material is not small, so the heat input into the interior of the car is large. isn't it.

For example, the thermal conductivity of this interior material is approximately 0.05 Ka+l.
I/m, h-℃, assuming this thickness is about 10 degrees, when the temperature of the outer steel plate is about 50℃ and the temperature inside the car is about 30℃, the heat that is transmitted through this interior material and enters the car is approximately 50 Ka+lt.
/m'', 11 degrees Celsius (approximately 58 W/day), which is an order of magnitude smaller than the heat input energy from the windows.Furthermore, due to the increase in the temperature inside the car due to the heat input from the windows, this As the temperature difference between the inside of the car and the above-mentioned steel plate section becomes smaller, this heat input decreases.If the inside of this car reaches a temperature exceeding the above-mentioned steel plate section, heat will conversely flow out from inside the car. There is a point where the heat input and heat output are balanced, and the interior of the car and the steel plate reach an equilibrium state.At this time, the temperature inside the car is approximately 20 degrees Celsius higher than the outside air.Moreover, the temperature inside this compartment is higher than the outside temperature. Depending on the conditions such as leaving the vehicle unattended, the temperature may reach 508C or higher, and it takes an extremely long time to cool the interior of such a high-temperature vehicle to a comfortable temperature.

[Summary of the invention]

The present invention has been made in order to eliminate the above-mentioned defects, and is to provide a sun-shaped pond on the outside of an automobile, etc., and use this as a power source to absorb heat or generate heat in the interior of the vehicle by utilizing the Peltier effect. An object of the present invention is to provide an automobile equipped with an electronic device that improves the indoor environment at the start of driving by providing a section in the interior of the vehicle that performs the opposite function.

[Embodiments of the invention]

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In the embodiments of the present invention shown in FIGS. 1(a), (b), (c) and FIGS. 2(b) and Φ), a frame (not shown) is provided at the end of the roof of the automobile. A fold-in type covering 1 is attached to this frame with a mounting tool 2. The cover 1 has a folded portion opened as shown in FIG. 1(b), and its outer edge can be fixed to prevent the folded portion from swinging due to wind or the like. This covering 1 is also provided with a large number of solar ponds 1'. As shown in FIG. 1(c), this solar cell has eight layers 1c on a metal electrode 1b provided on a reinforcing plate 1a.

A cell with a pin structure of one layer 1d1p layer 1e is required,
Furthermore, a transparent electrode 1f and a metal electrode 1g connected to this electrode are provided on this. A transparent protective covering IR is provided on these electrodes to transmit light and protect the cell. Amorphous solar cells, which can be used at a low cost as the solar cell 1' and have recently been developed and made significant progress, have achieved a 10σ square value of 8% or more, and a modularized state of 6% or more. The circuit configuration of this solar cell 1' can be freely designed in combination with the electronic cooler.

For example, the module is configured by suitably connecting the metal fit poles 1b and 1g in series and parallel of each cell so that the module output voltage is approximately 6V on the ceiling, front, rear, and both sides of a car, and then equally distributes this on the left and right sides. The two systems are merged. Note that this output voltage is safe against electric shock when the automobile is damaged, and is determined in consideration of the balance with Joule heat loss.

The arrangement of the electronic cooler 3 operated by the solar cell 1' can be freely selected.For example, if the domestic occupancy rate is around 1.2, then... ) Since there are many cases where there is only one driver, a part of the above-mentioned covering 1 is applied to a ventilator and installed on the front of the vehicle. Further, this electronic cooler may be installed directly above the driver's seat, at the center of the ceiling, at the rear, or the like.

The electronic cooler 3 arranged as described above is shown in FIG.
) and (b), it is connected to the covering body 1 via a connector 4 with electric wire cords 5a and 5b.

The basic configuration of the electronic cooler 3 is that an n-type semiconductor 3b and a p-type semiconductor 3C are provided on a heat absorbing plate 3a, and a concave-convex heat radiator 3d is provided on the n-type semiconductor abSp-type semiconductor 3C.
, 3d are provided.

A positive electrode conductor 3e is connected to the discharger 3d on the side of the n-type semiconductor 3b, while a heat sink 3d on the side of the p-type semiconductor 3C.
A negative conductor 3e is connected to the terminal. This conductor 3e,
3e is connected to the electric wire cord 5b. Further, a radiator cover 6 is provided to cover the radiators 3d and 3d. The electronic cooler 3 may be one with a large Seebeck coefficient, low thermal conductivity, large specific resistance, or one with a large figure of merit, such as bismuth telluride (BizTe) or bismuth antimonide (Bismuth antimonide).
2Sb, ) etc. are used.

For example, with a commercially available product, the high temperature side is 50℃, the low temperature side is 30℃, and the current is 2A.
, terminal voltage 6V, cooling capacity 18W, dimensions 35X35X5
The 16 electronic coolers i are divided into 8 pieces each on the left and right, and the branched 6V, 30Age is connected in parallel to each side. The mounting location is, for example, a location in front of the end of the covering 1 at the front of the vehicle, where the radiator 3d touches the outside air.

In the present invention constructed as described above, first, the above-mentioned amorphous solar cell is installed as the solar cell 1' before the start of operation. Approximately 120W of power can be obtained during sunshine.However, the cooling capacity of the electronic cooler 3 is approximately 100W.
Kd/h, and cannot even compensate for the heat energy input from the car window. However, if the car windows and ceiling are shielded from direct sunlight, this heat input energy will drop by an order of magnitude, as shown in Figure 1 (b).
) As shown in Figure 1, there are 10 coverings covering the ceiling and windows, approximately 6 in area.
The amount of heat generated by the solar cell 1' attached to - is approximately 360W.
That's all. Therefore, the electronic cooler 3 can reduce the temperature inside the vehicle to below the outside temperature. By utilizing the output of the solar cell 1' in the electronic cooler 3 in this way! A cooling capacity of approximately 260 W (approximately 224 K, d/h) or more can be obtained with respect to heat input into the car interior of 0.180 KJ/h or less, and at least an increase in the temperature inside the car can be prevented. However, as this temperature decreases, heat input from the ceiling, sides, windows, etc. increases, and the cooling capacity of the electronic cooler 3 is reduced by the radiator 3d.
When the temperature of the cooler is kept constant, the temperature of the cooler decreases. For example, when the temperature inside the car drops from 30°C to 20°C, the cooling capacity drops from about 18W to 14W, so thermal equilibrium is quickly reached. Therefore, the radiator cover 6 is raised on the radiator 3d side to block direct sunlight to the radiator 3d,
Cooling efficiency is improved by ensuring sufficient convection heat radiation or by installing a fan on the cooling side to perform heat radiation.

In the above, the heat energy input from sunlight into the car is approximately 1000W.
/m', but if this sunlight changes, the power generated by the solar cell 1' will also change, and at the same time the heat energy input into the car will also change, so that the temperature is slightly lower than the outside temperature. The temperature inside the car is maintained.

Furthermore, the efficiency of the solar cell 1' has been significantly improved, and the performance of the electronic cooler 3 has also been improved, and the above-mentioned embodiment has ensured a comfortable temperature inside the vehicle. By applying ', the above solar cell 1' covers the car.
The 10-person portion of the covering to which it is attached may be omitted. That is, the above sun tit directly onto the ceiling surface and rear window.
A pond 1' is installed by, for example, vapor deposition, and a roll-up, pull-out solar cell is installed on the windshield, and when the vehicle is parked, the solar cell 1 can be shielded from sunlight by simply pulling it out and hooking the end to a fixture. ′ can be used to generate power by receiving light. Note that the sun 111 and the pond 1' are provided directly on this window'J1. The sunglasses-like effect reduces discomfort caused by strong oblique light,
In addition, external visibility is also improved. The above-mentioned effect of the rear window also helps reduce discomfort caused by the headlights of vehicles behind, especially at night.

On the other hand, after the engine is stopped, the temperature around the engine is high, but the temperature inside the car when parked varies depending on the time.
, the high-temperature side e of the radiator 3d is directed downward, and a decrease in efficiency due to the temperature difference between the low-temperature side and the high-temperature side does not pose much of a problem.

In addition, when the restart time is night and the time can be predicted, the power of the solar cell 1' is transferred to a separate system, for example, at 3 OA, H.
By storing the temperature in the battery of the car and activating the electronic cooler about one hour before restarting the car, the temperature inside the car can be efficiently lowered during driving. This is because the temperature on the radiator 3d side is almost down to the outside air temperature, so this cooling capacity is large, for example, with a 6■, 30A type, even if the outside temperature is about 30°C and the inside temperature is 20°C, the temperature on the radiator 3d is about 50°C. , because it has a cooling capacity that is 30% more than when the vehicle interior temperature is 30°C.

Although electronic cooling has been described above, by switching the current direction, it is possible to switch to an electronic warmer to supplement the main heating. In this way, as an electronic warmer, when parked for a long time in the winter, the car temperature becomes the same as the outside air, and even if the amount of sunlight decreases significantly, there is a heat input of about 100W from the sunlight.
It has a heat retention effect.

Moreover, when a battery is applied, this battery performance can provide approximately 100 W of heat supply, and the same effect as in the case of cooling can be obtained.

The above control may be performed, for example, by automatic control using various sensors, timers, microcomputers, and other electronic devices, or by operation from the driver's seat.

The above is mainly used to make the uncomfortable inside of a small passenger car more comfortable until the main air conditioning system works effectively, but if necessary, it can be It can also be widely used in main heating and cooling equipment, passes, ferries, etc.

Incidentally, since an electronic cooler and an electronic warmer are not required during the spring and autumn seasons, the cover 1 is removed and a dummy stopper is set in the connector 4.

〔Effect of the invention〕

As explained above, the present invention provides a covering body equipped with solar cells and an electronic cooler or an electronic warmer, so that the temperature inside the vehicle can be raised in advance as an auxiliary to the main air conditioning system during extremely hot or extremely cold times. In addition, this also indirectly suppresses the temperature inside the car outside the plate during sunshine.

[Brief explanation of the drawing]

FIGS. 1(a) and (b) are block diagrams of an embodiment of the present invention, FIG. 1(e) is a block diagram of a solar cell, and FIG. 2(a) is a block diagram of an embodiment of the present invention.
(b) is an enlarged view showing the wiring diagram and configuration of the electronic cooler used in the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Covering body, 1'... Solar cell, 2... Mounting tool, 3... Electronic cooler (electronic warmer), 3a... Heat absorption plate, 3b... N-type semiconductor , 3(-... p-type semiconductor,
3d... Heatsink, 3e... Conductor, 4... Connector, 5a, 5b... Electric wire cord, 6... Heatsink cover. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Masuo Oiwa Figure 1 Figure 2

Claims (4)

[Claims] (1) In a car equipped with equipment for indoor heating and cooling, an electronic cooler or electronic warmer that utilizes the Beltier effect, a large number of solar cells, and an electronic cooler or electronic heater that uses the solar cells as a power source are installed. An automobile equipped with an electronic device, characterized in that it has a control means for controlling a heating device. (2) An automobile equipped with an electronic device according to claim 1, characterized in that the solar cell line is removably attached to an exterior part of the automobile. (3) The control means has a function of controlling the electric cooler or the electronic warmer to control the power input to the solar cell so that the indoor temperature of the automobile falls within a predetermined range. A vehicle equipped with the electronic equipment described in Scope 1. (4) The electronic device according to claim 1, characterized in that the control means has a function of temporarily storing electrical energy generated by the solar cell and discharging the electrical energy at a predetermined time period. Automobile with equipment.