JPH07312496A - Outdoor data i/o unit - Google Patents

Abstract

PURPOSE:To provide an easy to see screen at all times by sustaining the ambient temperature of a display disposed in a housing at a normal level thereby eliminating the influence of outer air temperature or direct ray of the sun even when the data I/O unit is set outdoors. CONSTITUTION:A small space 12 for housing a liquid crystal display 7 is provided at the upper part in a housing 4. An air intake port 18 is provided at the lower part of the small space 12 and an air discharge port 22 is provided at the upper part. A fan 19 is disposed at the air discharge port and a heater 16 is disposed at the lower part of the small space 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor data input / output device installed in a gasoline filling station or the like.

[0002]

2. Description of the Related Art At a gas station, as shown in FIG. 4, an outdoor data input / output device 3 is installed adjacent to the oil supply device 1 on an island 2 on which the oil supply device 1 is erected. The outdoor data input / output device 3 is for inputting / outputting customer data and refueling data. For example, the outdoor data input / output device 3 is connected to an indoor data input / output device installed in an office or the like in a gas station, and as shown in FIG. A printer 5, a card reader 6, a display device 7 and a control device 8 are arranged in the printer 4. In the figure, reference numeral 9 indicates a slip exit of the slip issued by the printer 5, and 10 indicates a touch panel of the display 7.

The display 7 is usually composed of a large dot matrix liquid crystal display, and a transparent plate having a touch panel 10 attached to the main body of the display 7 is in close contact therewith. This is to prevent a deviation from occurring between the display on the touch panel 10 and the operating portion of the main body.

[0004]

The outdoor data input / output device 3 is installed outdoors and directly exposed to sunlight.
Further, since it is directly affected by the outside air temperature, the temperature of the display surface of the display 7 rises to, for example, 40 ° C. or more under direct sunlight. In such a case, the large dot matrix liquid crystal display has a structure that can withstand only a high temperature of, for example, about 35 ° C. in view of its performance. As the screen rises, the screen disappears completely and becomes unusable.

On the contrary, even at a low temperature of, for example, −0 ° C. or lower, the display speed becomes slow and the display becomes faint, making it difficult to see.

An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to prevent the display unit from being exposed to high temperature or low temperature in the housing of an outdoor data input / output device installed outdoors. An object of the present invention is to provide an outdoor data input / output device that prevents the surface temperature from becoming high or low, can be used at high or low temperatures, and does not make the display hard to see.

[0007]

In order to achieve the above object, the present invention firstly provides a small chamber for accommodating a liquid crystal display in an upper part of a housing, and an air intake port is provided at a lower part of the small chamber and an air chamber is provided at an upper part thereof. The gist is that the exhaust port is formed, a fan is provided at the air exhaust port, and a heater is provided at the bottom of the small chamber.

Secondly, the gist of the liquid crystal display is that it is arranged with a slight gap between it and a transparent plate provided on the front surface of the small chamber.

Thirdly, the gist is to provide a touch panel on the front surface of the transparent plate.

Fourthly, the gist is to provide a circulator at a place other than the small chamber in the housing.

Fifth, the gist of the present invention is to form a slip taking-out port of the printer disposed in the housing in the vicinity of the air taking-in port and use the voucher taking-out port as an outside air taking-in port into the housing. .

[0012]

According to the first aspect of the present invention, when the surface temperature of the liquid crystal display becomes high, the fan operates to take in cold outside air into the small chamber through the air inlet, and cools the display with this outside air. . The outside air after cooling is also discharged from the air outlet to the outside of the small chamber by the function of the fan. Therefore, the outside air after cooling does not stagnate in the small chamber, and the display device can be cooled by the new cold outside air taken in through the air intake.

When the surface temperature of the liquid crystal display becomes low, the heater is turned on, which heats the air in the small chamber and warms the display.

According to the second aspect of the present invention, in addition to the above action, since a slight gap is provided between the transparent plate provided on the front surface of the small chamber and the liquid crystal display, it is cooled or heated. Air flows through this gap. Therefore, the efficiency of cooling or heating the display surface is increased.

According to the third aspect of the present invention, in addition to the above operation, the touch panel can be easily operated.

According to the present invention as set forth in claim 4, in addition to the above-mentioned action, the circulator provided in a portion other than the small chamber in the housing is always operated to locally cool and heat the air in the housing. To prevent the surface temperature of the display from falling and rising as much as possible.

According to the fifth aspect of the present invention, in addition to the above operation, a slip taking-out port of the printer disposed in the housing is formed in the vicinity of the air intake, and the slip taking-out port is provided in the housing. By using the outside air intake, it is not necessary to provide a separate outside air intake.

[0018]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view of essential parts showing an embodiment of an outdoor data input / output device of the present invention, and FIG. 2 is a vertical sectional rear view of the same.
FIG. 3 is a perspective view of the display unit and its mounting portion, and since the overall structure of the outdoor data input / output device is as already described with reference to FIG. 4, detailed description thereof is omitted here.

In the outdoor data input / output device 3 of the present invention, the upper part of the housing 4 is partitioned into a substantially triangular shape by a partition plate 11 made of an iron plate or the like, and a small chamber 12 for accommodating the large dot matrix liquid crystal display 7 is provided. A transparent plate 21 having the touch panel 10 attached to the front surface of the small chamber 12, and the display 7 is arranged behind the transparent plate 21 with a slight gap (3 to 5 mm). .

As shown in FIG. 3, the indicator 7 is disposed above the installation plate 14 made of, for example, an iron plate, and below the installation plate 14 is an aluminum plate having good heat conduction and heat dissipation effects. Attach the mounting plate 15 by
A heater 16 and a temperature sensor 17 such as a thermistor were attached to the. Reference numeral 14a in the figure denotes a mounting leg to the partition plate 11, which is formed by extending and bending the end portion of the installation plate 14.

An air intake port 18 is formed in the lower part of the partition plate 11 in the vicinity of and above the slip exit port 9 of the printer 5, and an air exhaust port 22 is formed in the upper part of the partition plate 11.
Is provided, and the fan 19 is arranged at this air outlet. As a result, the heater 16 is arranged in the lower part of the small chamber 12, and the slip taking-out port 9 also serving as the outside air taking-in port is located above the air taking-in port 18 of the small chamber 12.

Further, a circulator 20 for stirring the air in the housing 4 is provided at a position other than the small chamber 12 in the housing 4, that is, on the back side in the illustrated example.

A temperature sensor 17 is provided on the input side of the controller 8.
Is connected, the fan 19 and the heater 16 are connected to the output side, and a preset temperature which is a reference for operating the fan 19 and the heater 16 is set in the control device 8. This set temperature is
The temperature exceeding the temperature range in which the indicator 7 operates normally is, for example, 5 ° C. in the low temperature part and 30 ° C. in the high temperature part, and is 20 ° C. as the reference temperature for turning off the operation of the fan 19 and the heater 16, respectively. Set 15 ° C.

Next, the operation will be described. Temperature sensor
When the ambient temperature of the display 7 detected by 17 is 5 ° C. to 30 ° C., the control device 8 does not output to the fan 19 and the fan 19 does not operate. The circulator 20 constantly operates to agitate the air in the housing 4 and prevent the internal temperature from becoming partially high or low.

When the display 7 is exposed to direct sunlight and the ambient temperature of the display 7 becomes high and the temperature detected by the temperature sensor 17 exceeds 30 ° C., the fan 19 is turned on by the output from the controller 8. To do.

As a result, the slip outlet 9 which is the outside air inlet.
The cold outside air taken into the housing 4 from the inside is taken into the small chamber 12 from the air intake 18, and the indicator 7 is cooled by this outside air. In this case, since a slight gap 13 is provided between the display surface of the display 7 and the transparent plate 21, the outside air taken in flows through this gap to cool the display surface of the display 7. Therefore, the display surface can be cooled efficiently.

The outside air after cooling is discharged to the air outlet by the fan 19.
The circulator 20 is discharged from 22 into the housing 4.
Is further fed downward in the housing 4. Therefore, the warm air does not stay in the small chamber 12 or the housing 4, and the cooling efficiency is improved.

When the temperature detected by the temperature sensor 17 reaches, for example, 20 ° C., it is determined that the surface temperature of the display 7 has dropped, and the output from the controller 8 causes the fan 19 to output.
Stops.

Next, when the ambient temperature of the display 7 detected by the temperature sensor 17 falls below 5 ° C., for example, when the outside air temperature decreases in winter, the heater 16 is turned on by the operation of the controller 8. As a result, the mounting plate 15 made of an aluminum plate to which the heater 16 is mounted is first heated, and the display 7 is heated by the heat radiated from the mounting plate 15, and when the air in the gap 13 is further heated and rises. The display 7 is further heated.

At this time, since the indicator 7 is housed in the small chamber 12, the warmed air stays in the small chamber 12 and does not escape to the outside, so that the indicator 7 can be efficiently heated. When the temperature detected by the temperature sensor 17 reaches 15 ° C., it is determined that the surface temperature of the display 7 has risen, and the heater 16 is turned off by the output from the controller 8.

As described above, the surface temperature of the display 7 is prevented from becoming high and low, and the ambient temperature is kept in the temperature range where the display 7 can operate normally.

[0032]

As described above, since the outdoor data input / output device of the present invention can maintain the ambient temperature of the display disposed in the housing at a temperature at which it can operate normally, it can be installed outdoors. The display surface is always easy to see without being affected by the outside temperature or direct sunlight.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of essential parts showing an embodiment of an outdoor data input / output device of the present invention.

FIG. 2 is a vertical cross-sectional rear view of an essential part showing an embodiment of an outdoor data input / output device of the present invention.

FIG. 3 is a perspective view of a display unit, which is a main part, showing an embodiment of the outdoor data input / output device of the present invention, and a mounting portion thereof.

FIG. 4 is a perspective view showing an installation example of the outdoor data input / output device of the present invention.

[Explanation of symbols]

 1 ... Refueling device 2 ... Island 3 ... Outdoor data input / output device 4 ... Housing 5 ... Printer 6 ... Card reader 7 ... Display 8 ... Control device 9 ... Voucher exit 10 ... Touch panel 11 ... Partition plate 12 ... Small room 13 ... Gap 14 ... Installation plate 14a ... Mounting legs 15 ... Mounting plate 16 ... Heater 17 ... Temperature sensor 18 ... Air inlet 19 ... Fan 20 ... Circulator 21 ... Transparent plate 22 ... Air outlet

Claims (5)

[Claims] 1. A small chamber for accommodating a liquid crystal display is provided in an upper part of a housing, an air intake is formed in a lower part of the small chamber, an air exhaust port is formed in an upper part of the small chamber, and a fan is provided in the air exhaust port. An outdoor data input / output device characterized in that a heater is provided in the. 2. The outdoor data input / output device according to claim 1, wherein the liquid crystal display is arranged with a slight gap between the liquid crystal display and a transparent plate provided on the front surface of the small chamber. 3. The outdoor data input / output device according to claim 1, wherein a touch panel is provided on the front surface of the transparent plate. 4. The outdoor data input / output device according to claim 1, wherein a circulator is provided in a place other than the small chamber in the housing. 5. The outdoor data input / output according to claim 1, wherein a slip outlet of the printer disposed in the housing is formed in the vicinity of the air inlet, and the slip outlet serves as an outside air inlet into the housing. apparatus.