JPS591938B2 - How to display compressor operation in an air conditioner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a compressor operation display method in an air conditioner that displays when the room temperature changes and the compressor starts operating again after the room temperature matches the set temperature and the compressor stops. .

Conventional air conditioners turn on a lamp or other indicator when the compressor is operating to indicate that it is operating, but this display does not change from the time the compressor is started until the room temperature reaches the set temperature. It lights up continuously, and thereafter it lights up every time the compressor is driven.

For this reason, it is not possible to determine whether the compressor is operating when the room temperature is close to the set temperature or whether the compressor is operating at a temperature significantly different from the set temperature by looking at the lighting of the display.

In other words, from the user's perspective, did the compressor start operating because the indicator light was too far from the set temperature?
Another disadvantage is that it is not possible to determine whether the compressor is operating near the set temperature, and therefore it is not possible to determine whether the device is operating normally.

This invention was made in view of the above-mentioned point, and its purpose is to cause the display to light up when the compressor is driven within the set temperature range after the room temperature reaches the set temperature. Therefore, it is an object of the present invention to provide a method for displaying compressor operation in an air conditioner, which makes it easy to determine whether or not the device is operating normally.

Next, one embodiment of the present invention will be described with reference to the drawings.

111..., 2□, 22, 23... are fluorescent lights, 1
21 3 Room temperature and set temperature indicators are displayed using bar indicators such as liquid crystal display tubes or light emitting diodes, which are arranged in a horizontal row at regular intervals.

31, 32, 33... are colon indicators arranged between each of the room temperature indicators 1, 4 is a power line, room temperature, set temperature indicators 1□, 1□..., 21p22.・
- and the colon display bodies 31, 3°... are connected.

Note that the connection between the set temperature display body 2 and the power supply line 4 is omitted in the figure.

51, 6□ means one room temperature indicator, for example, a colon indicator 3□ placed before and after a room temperature indicator 1□ that displays 24°C.
, 33, and its input terminal is connected via the room temperature display 1 ) connected to the signal source.

Note that NAND circuit 5. is connected to a heating (cooling) signal source via an inverter 81.

The above has described the display of the colon indicators 3□ and 33 placed before and after the room temperature indicator 1□, but the colon indicators 31.3 and 33 placed before and after the room temperature indicator 11 or 13, 14... □ or 33, 34, . . . are also connected to similar circuits as described above, for example, NAND circuits 5□, 62 are connected to the colon display bodies 33, 34, and an inverter 72, an inverter 8□ is connected.

Note that the room temperature, setting match signal source sends out an output when the room temperature reaches a certain range of preset temperature, and the compressor on signal source sends out an output when the compressor is in the operating state. and even heating (
The cooling) signal source sends out an output when the heating state is switched, and does not send out the output when the cooling state is switched.

Next, to explain the operation based on the above configuration, it is assumed that the air conditioner is currently switched to the cooling state.

Here, if the set temperature is 24°C, the set temperature indicator 2□ is lit, and if the current room temperature is 27°C, the room temperature indicator 1. is lit.

When the compressor operates and the room temperature drops, the room temperature indicator will display 1. When the room temperature indicator 1□ is switched on from 14 to 13 and turned on, the room temperature, setting match signal source, and compressor on signal source send out outputs, and the cooling operation is in progress. Inverter 8. A neutral force is applied to the NAND circuit 51 via the room temperature indicator 1□
The output is also applied to the NAND circuit 51 via the inverter T1, and the output becomes low level.

As a result, one end of the colon display body 33 becomes low level, so that the colon display body 33 is energized and turned on.

Further, when the room temperature approaches the center value of the set temperature, the compressor is turned off, so the output of the NAND circuit 51 becomes a bi-level, and the electricity to the colon display 33 is cut off and the light is turned off.

When the compressor stops, the room temperature rises, and the value deviates from the center value of the set temperature, the compressor is turned on again, the output of the NAND circuit 5□ becomes low level, and the colon display 3□ lights up. Ru.

This lighting will continue as long as the room temperature does not deviate from the set temperature.

In addition, if the set temperature is set to 2-5℃, the room temperature will be 25℃.
The colon indicator 34 is lit when the compressor is turned on in a state where the pressure is reached, and its operation is the same as that described above, so a description of the operation will be omitted.

The above embodiment shows the cooling state, but in the case of the heating state, a heating signal is input, so a negative signal is input to the NAND circuit 5□, and therefore its output maintains the bi-level state and the colon The display body 33 is never lit.

In this case, since the output appears at the input terminal of the NAND circuit 61, the output of the NAND circuit 6□ becomes low level, and the colon display 32 is lit when the compressor is in the ON state.

As described above, in this invention, when the room temperature reaches a certain range of the set temperature and the compressor is operating in this state, the colon indicator lights up, so you can check whether the device is operating normally or not. In addition to being able to easily determine whether the device is operating within the set temperature range,
When the colon display's off time becomes longer and the load condition becomes smaller, it is okay to turn off the power, so it is possible to save energy by judging from the display's off time. It is something that you have.

[Brief explanation of the drawing]

FIG. 3 is a block diagram showing an embodiment of a method for displaying compressor operation in an air conditioner according to the present invention. 11.1□... is a room temperature indicator, 21, 22... is a set temperature indicator, 31 p 32... is a colon indicator,
51,5□...60,6□... are NAND circuits.

Claims (1)

[Claims] 1 The set temperature and room temperature are displayed on separate displays, and the condition is that the room temperature has reached a preset temperature range and that the compressor is operating within the set temperature range. A method for displaying compressor operation in an air conditioner, characterized by selectively lighting up colon indicators arranged corresponding to each room temperature indicator.