JPS6138382B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to air blow control in an air conditioner equipped with two fans, and one of its objects is to obtain a comfortable air conditioning effect.

Conventionally, air blow control in indoor units of heat pump air conditioners has been performed using a single fan, which has drawbacks such as not being able to provide comfortable room temperature control that can be achieved with inexpensive control devices. It had

The present invention eliminates the drawbacks found in the conventional air blowing controls described above. DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings showing embodiments thereof.

In Figure 1, 1 is a power switch, and 2 is a thermostat called a double thermostat that detects the indoor temperature and turns on/off, and has two contacts 2a and 2b with different operating points. . Reference numerals 3 and 4 are fan motors connected to the circuits of the contacts 2a and 2b, respectively, and fans (not shown) are installed above and below the main body (not shown) with a heat exchanger (not shown) in between. ) to drive.

In the above configuration, when the indoor temperature reaches the first set temperature, the first fan motor 3 rotates, and when the indoor temperature reaches the second set temperature, the second fan motor 4 rotates. Therefore, in this case, air conditioning can be performed in which the overall amount of air blown increases as the temperature changes.

Moreover, contrary to the above, it is also possible to set the operating temperature of each contact point 2a, 2b so that the operation of the fan motors 3, 4 is switched from simultaneous operation to single operation according to a change in the indoor temperature.

Further, still other embodiments of the present invention will be described.

In Fig. 2, 1 is a power switch, and 5 is a thermostat called a triple thermostat that detects the indoor temperature and turns on and off, and has three contacts 5a, 5b, and 5c with different operating points. ing. 6 is activated by the contact 5c of the thermostat 5.
The relay is ON-operated and includes contact pieces 6a and 6b connected to the contacts 5a and 5b, respectively, and a relay coil 6c connected to the contact 5c.
Reference numerals 7 and 8 denote fan motors connected to the circuits of the contact pieces 6a and 6b, respectively, and fans (not shown) are installed above and below the main body (not shown) with a heat exchanger (not shown) in between. drive). The fan motors 7 and 8 have strong terminals 7a and 8a and weak terminals 7b so that high-speed circuit and low-speed rotation can be switched, respectively.
8a, each terminal 7a,
Switching between 7b, 8a and 8b is performed by contact pieces 6a and 6b of the relay 6.

In the above configuration, when the room temperature reaches the first set temperature, the contact 5a of the thermostat 5 turns ON, the fan motor 7 rotates at high speed, and then the second
When the set temperature of
When the set temperature is reached, the contact 5c is turned on and the relay coil 6c is energized, and the contacts 6a and 6b are switched to switch both the fan motors 7 and 8 to low speed rotation. Also, as the room temperature increases, the set temperature of 3,
Reverse operations are performed as the second set temperature and first set temperature are reached. Therefore, depending on the first to third set temperatures, the fan motors 7, 8
Each relay contact piece 6a, 6
By combining terminals 7a, 7b, 8a, and 8b with terminals 7a, 7b, 8a, and 8b, an unprecedented ventilation effect can be obtained.

In other words, in order to improve the start-up during cooling and heating, the two fan motors 7 and 8 are operated strongly at the same time, and then the rotation of the fan motors 7 and 8 is gradually reduced in order to reduce the overall air volume. All you have to do is lower it. Further, it is also possible to adopt a configuration in which the strong and weak rotations of the fan motors 7 and 8 are alternately changed, and by controlling the operation by such a combination, a more detailed air conditioning effect than ever before can be obtained.

As is clear from the above embodiments, the air blower control device for an air conditioner according to the present invention has blowers installed above and below the air conditioner body with a heat exchanger in between, and the operation control of each blower is controlled by controlling the room temperature. The system detects and operates the air conditioner using a room temperature control device in which a plurality of contacts are independently connected to the circuit of the air blower, and the operating temperature of each of the contacts is made different, so that each air blower is controlled at different temperatures. Since the rotation speed of the fan can be controlled independently, not only can the overall airflow volume be varied, but also the optimal airflow mode can be set depending on the air conditioning mode for cooling or heating, and in particular, the operating timing of the upper and lower blowers can be varied. By doing so, it is possible to change the convection state of indoor air, improve indoor temperature distribution, and improve comfort.
It has various advantages.

[Brief explanation of the drawing]

FIG. 1 is a schematic electric circuit diagram of a blow control device for an air conditioner according to an embodiment of the present invention, and FIG. 2 is a schematic electric circuit diagram of a blow control device for an air conditioner according to another embodiment of the present invention. 2, 5...Thermostat, 2a, 2b, 5
a, 5b, 5c... Contact, 3, 4, 7, 8... Fan motor.

Claims (1)

[Claims] 1 A blower is installed above and below the air conditioner body with a heat exchanger in between, and the operation control of each blower is activated by detecting the room temperature, and multiple contacts are independently connected to the circuit of each blower. An air blowing control device for an air conditioner, in which the operating temperature of each of the contacts is varied.