JPS62158937A - Ventilation control device for floor type air-conditioning machine - Google Patents

Abstract

PURPOSE:To prevent the re-evaporation of dew water of a heat exchanger without passing ventilating air through a heat exchanger and improve comfortableness by operating only the lower fan of an indoor unit while stopping a compressor. CONSTITUTION:When an air-conditioning machine is operated and a set temperature is inputted, room temperature is inputted from a room temperature sensor into a room temperature detecting unit. In case the room temperature is higher than the set temperature, a compressor is driven by the decision of an operation control unit and an upper fan 4 as well as a lower fan 5 are rotated into arrow symbol directions. According to this operation, cool air is sent to upper and lower directions in a room. When the room temperature has become lower than the set temperature, the compressor and the upper fan 4 are stopped while the lower fan 5 is rotated to the arrow sign direction whereby air, not passed through an indoor heat exchanger 3, flows in the room. According to this method, the re-evaporation of dew water of the heat exchanger 3 may be prevented. On the other hand, cool air is mixed and the distribution of room temperature may be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to control of a top and bottom blowing fan for a floor-standing air conditioner.

Conventional technology 2 Page 1 Conventionally, during cooling, a control device for an indoor fan of a floor-standing air conditioner uses a room temperature sensor 4 to detect the room temperature and a set temperature arbitrarily determined by the user, as shown in FIG. 7(A). If the room temperature is higher, the compressor, indoor upper fan 1, and indoor lower fan 2 will be driven together.

Cool air was being sent from indoor unit A in the direction of the arrow.

In this case, the flow of air in the room is as shown in FIG. 8(A).

When the room temperature drops sufficiently and becomes lower than the set temperature, the compressor is stopped, and as shown in FIG.

In this case, the flow of air inside the room is as shown in FIG. 8(B).

Problems to be Solved by the Invention However, when the compressor is stopped, warm air from the upper part of the room flows into the lower part of the room.
In addition, as shown by the arrow in Figure 7fB), the kite passed through the heat exchanger 3, resulting in re-evaporated humid wind that circulated throughout the room, impairing comfort.

The present invention solves the problem described in item 1. It prevents re-evaporated humid wind from circulating indoors, stirs the cold air accumulated in the lower part of the room, and improves the distribution of room temperature. The purpose is to improve comfort.

Means for Solving the Problems" - In order to solve the problems described above, the present invention provides a ventilation control device with a setting input section for inputting a set temperature and a room temperature detection section for detecting the room temperature, as shown in FIG. and a calculation control unit that compares and calculates the set temperature with the room temperature and determines whether to drive the compressor, the partial fan, and the lower fan, and the signal from this calculation control unit controls the compressor, the partial fan, and the lower fan. The compressor fan drive section drives the compressor fan.

Function: With this configuration, when the compressor is stopped, the lower fan is operated to form a wind circuit that does not pass through the heat exchanger, thereby preventing the distribution of humid air into the room.

Embodiment One embodiment of the present invention will be described below with reference to FIGS. 2 to 6.

First, the configuration of the refrigeration cycle system will be explained with reference to FIGS. 2 and 3.

In the figure, 1 is an indoor unit, 2 is an outdoor unit, and inside the indoor unit 1-1, there is an indoor heat exchanger 3, an upper fan 4 and a lower fan 5 that are operated independently, and a device that detects the intake temperature. A room temperature sensor 6 is provided. Here, the indoor unit 1 is provided with a suction lower at the center of the front surface, and an upper Suita port 8 and a lower Suita port 9 below.

Also, inside the outdoor unit 2, there is a compressor 10, an outdoor heat exchanger 11, a capillary tube 12, an outdoor fan 1, which together with the indoor heat exchanger 3 constitute a well-known refrigeration cycle.
3 are provided respectively.

Next, the configuration of the control circuit will be explained with reference to FIG.

In the figure, 21 is an arithmetic control unit configured by a microcomputer, 22 is a setting input unit for inputting the room temperature setting 11, 23 is a room temperature detection unit including the room temperature sensor 6,
Reference numeral 24 denotes a drive unit (corresponding to the compressor fan drive unit in FIG. 1) which outputs operating signals for the second fan 4, the F fan 5, the vane 5, and the compressor 10.

Next, the operation of the air conditioner with the above configuration is shown in FIG.
The explanation will include FIG. 6 as well.

When the air conditioner operates and the set temperature is input to the setting input section 22 (step 1 in FIG. 5), the room temperature is input from the room temperature sensor 6 to the room temperature detection section 23 (step 2 in FIG. 5).
The arithmetic and control unit 21 compares the set temperature with the room temperature (step 3 in FIG. 5), and if the room temperature is higher than the set temperature, a signal is sent to the drive unit 24 to drive the compressor 10 (step 3 in FIG. 5). 4), drive the upper fan 4 (step 5 in FIG. 5), and drive the lower fan 5 (step 6 in FIG. 5).

In this case, the flow of air inside the room is as shown in Figure 6 (Al).

On the other hand, when the calculation control unit 21 determines that the room temperature has become lower than the set temperature (step 3 in FIG. 5), it outputs a signal to the drive unit 24 to stop the compressor 10, and
Stop the machine II (Step 8 in Fig. 5), then stop the two-part fan 4 (Step 8 in Fig. 5).

In this case, the flow of air in the indoor unit is as shown in FIG. 6fB1, and the air that does not pass through the indoor heat exchanger 3 flows, making it possible to prevent re-evaporation of the condensed water in the indoor heat exchanger 3. In addition, the flow of air in the room is as shown in Figure 6 (Bl), which stirs the cold air that has accumulated at the bottom of the room and improves the distribution of room temperature to maintain comfort.

According to the present invention, when the compressor is stopped, only the lower fan is operated to allow air to flow without passing through the heat exchanger, thereby preventing re-evaporation of condensed water in the heat exchanger. Humid wind no longer circulates inside the room, and by stirring the cold air that has accumulated at the bottom of the room from below, the room temperature is distributed well, improving comfort.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an air blowing control device for an air conditioner showing an embodiment of the present invention, Fig. 2 shows the refrigeration cycle of the air conditioner), Fig. 3 shows N(A) and (Bl are respectively 7B7 A cross-sectional view showing the flow of air when the compressor of the indoor unit in the air conditioner is operating and when it is stopped. Figure 4 is a control circuit diagram of the air conditioner. Figure 5 is a diagram of the air conditioner. Flowchart showing the control contents, Fig. 6 (At. FIG. 8 is a cross-sectional view showing the flow of air when the compressor of the indoor unit is in operation and when it is stopped. ...Indoor unit, 3...Indoor heat exchanger, 4...Two-part fan, 5...Lower fan, 6...Room temperature sensor, 10...
・Compressor, 11...Outdoor heat exchanger, 12...
... Capillary tube, 21 ... Calculation control section, 22 ... Setting input section, 23 ... Room temperature detection section, 24 ... Drive section. Name of agent: Patent attorney Toshio Nakao (1st person)
Fig./--One knit in one room, Fig. 2 3--One in one room, each Fig. 3 4-1. Japan 7T J--Chi Ip] I (A) 6---*T!7 Bu 4--1 Upper fan 5- Lower fan 6-----At room temperature lθ-m-Compressor 2I- 11 Calculation System What Evil 22--Part U B\Power Part 23--One Complete Related Part 24--Ikkoku @ Evil Figure 4 Figure 5 Figure 6-Unit in the Kiln 1. To (A ) (B) Figure 7 (A) !

Claims (1)

[Claims] A floor-standing air conditioner has a refrigeration cycle in which a compressor, an indoor heat exchanger, an outdoor heat exchanger, and a capillary tube are connected in a ring, and is also equipped with an upper fan, a lower fan, and a room temperature sensor on the indoor side. a setting input section for inputting the temperature, a room temperature detection section for detecting the room temperature, a calculation control section for comparing and calculating the set temperature and the room temperature and determining whether or not to drive the compressor, the upper fan, and the lower fan; Air blow control device for a floor-standing air conditioner equipped with a compressor fan drive unit that drives the compressor, upper fan, and lower fan using signals from the arithmetic control unit.