JPH01137144A - Device for controlling operation of air conditioner - Google Patents

Abstract

PURPOSE:To enable an interior thermosetting to be performed and realize a comfortable air conditioning sooner by a method wherein an output signal is produced form a comparison and discriminating means when an operation is started, a discrimination of an operation mode and the operation are carried out, an means for changing-over the amount of interior air and an outputting means for driving an interior thermosetting temperature sliding means are provided. CONSTITUTION:An interior unit A is provided with an interior blower 1, an interior temperature sensing element 2, an interior heat exchanger 3 and a pipe in which a coolant is flowed. An outdoor unit B is provided with an outdoor blower 5, an outdoor temperature element 6, an outdoor heat exchanger 7, a compressor 8 and a four-way valve 9. The interior unit A is provided with an operation controlling part having a micro-computer 1 having a timer function and a temperature adjusting function programmed. In case that an outdoor temperature T1 is higher than an outdoor set temperature T0, an indoor setting temperature is slid to a value of T2-N and then a normal cooling (or a heating) operation is carried out until an interior temperature T3 reaches the set temperature T2-N. In this case, as the interior temperature T3 approaches the value of T2-N, the amount of indoor air is decreased and then the operation is carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to control of indoor thermosetting in response to outdoor load of an air conditioner.

Conventional technology Conventionally, the operation of air conditioners was controlled using the indoor thermoset temperature T1.
The room temperature T2 detected by the room temperature detection means is compared with the room temperature T2, and the indoor air volume is changed or the set temperature is manually adjusted.

Problems that the invention aims to solveHowever, when the outdoor temperature is high (such as on a midsummer afternoon), when the roof, walls, etc. are hot (outdoor overload),
The room received heat radiation (or cold radiation) from the surroundings, and it took a long time for the room to cool down (or warm up) sufficiently.

For this reason, there was a problem in that the room did not feel sufficiently cool (or warm) and the indoor thermoset temperature had to be adjusted.

In view of the above conventional problems, the present invention realizes control (hereinafter referred to as load responsive control) for creating a comfortable living environment under any outdoor temperature conditions, without sacrificing the advantages of the conventional technology. be.

Means for Solving the Problems In order to solve the above problems, the present invention, as shown in FIG. outdoor temperature T
1; comparison and determination means for comparing and determining the indoor thermoset temperature T2 stored in the set temperature storage means and the indoor temperature T3 detected by the indoor temperature detection means; means for comparing and determining signals sent from two comparison and determining means; a set time detecting means for detecting and outputting the elapse of a set time; an indoor air volume switching means for switching the indoor air volume; and an indoor thermoset temperature T□. In an air conditioner equipped with a sliding set temperature sliding means, etc., during cooling operation, when the outdoor temperature T1) reaches the outdoor set temperature TO, an output signal is output from the comparison and judgment means, and this output signal also indicates the indoor setting temperature. The indoor air volume switching means and the set temperature sliding means are driven by an output means which is sent to a comparison and judgment means which compares and makes a judgment with the temperature T2, and is outputted from the signal.

Operation Due to the above (1'4), the outdoor temperature T1 becomes the outdoor set temperature T.
If it is higher than □, the indoor temperature setting is slid to 72-N, and normal cooling (or heating) operation is performed until the indoor temperature T3 reaches the set temperature T2-N.

In this case, as the indoor temperature T3 approaches the temperature T2-N, the indoor air volume is reduced during operation.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 2 to 5.

FIG. 2 shows an embodiment of the invention. FIG. 2 is a schematic configuration diagram of indoor and outdoor units.

In the figure, A is an indoor unit, 1 is an indoor blower, 2 is an indoor temperature detection element, 3 is an indoor heat exchanger, and 4 is a pipe through which a refrigerant flows. Day is an outdoor unit, 5
is an outdoor blower, 6 is an outdoor temperature detection element, 7 is an outdoor heat exchanger, 8 is a compressor, and 9 is a four-way valve. In addition, indoor unit l-A is equipped with a microcomputer (hereinafter referred to as LS) programmed with timer functions, temperature control functions, etc.
An operation control section (not shown) having a control section (referred to as I) is provided.

Next, the operation control circuit configuration will be explained with reference to FIG. Here, the same parts as in FIG. 2 are given the same numbers and will be explained.

In the figure, B-C respectively indicate an operation control section and a remote control section (hereinafter referred to as operation section), and operation control section B includes a transformer 22 that steps down the AC power supply 21 and an OCC power supply that exchanges AC into DC. The direct current of the conversion section 23 and this OCC power supply conversion section 23 is L! 5124, an output circuit 29 consisting of a group of relay elements that controls the operation of the compressor, four-way switching valve, indoor blower 1, and outdoor blower, and basic timing for various signal processing of the LSI 24. It includes an oscillation circuit 30 and a reset circuit 31 that controls various signal processing.

Here, the regulator 25 is connected to the port P of the LSI 24.
1, the two output circuits are connected to ports P11 to P16, respectively, and the oscillation circuit 30 and reset circuit 31 are connected to ports P41, R42, and R51, respectively. In addition, the two output circuits each have ports P11 to P1.
Relay elements R1, R2, R3, R4, R connected to 6
It is composed of 5 and R6.

Relay element R1 corresponds to a compressor, relay element R2 corresponds to a four-way switching valve, relay element R3 corresponds to indoor fan F blower, and relay elements R4, R5, and R6 each switch the air volume of indoor blower 1. ``Break breeze'', ``weak wind'', 1 strong wind''
Corresponds to the speed terminal of

Further, 52 is an A including a plurality of resistor groups 110 to 115.
/D conversion circuit 53 connects the input of the room temperature detection element 2 and A
/ This is a comparison circuit that compares the input from the D conversion circuit 52 and outputs a compressor operation/stop signal and a set temperature slide signal.

+iii' room temperature detection element 2, A/D conversion circuit 52
constitutes the function of a thermostat that regulates indoor temperature,
The A/D conversion circuit 52 is connected to the port P71 of the LSI 24.
~P74 and the output of the comparison circuit 53 are connected to the port PB1 of the LSI 24, respectively.

Next, the operation part C selects "light wind", "weak wind", "strong wind",
Air volume switching operation section 41 equipped with "stop" selection switches 51 to S4, and switches 511 to 5 for setting the room temperature
The room temperature setting operation section 42 includes a room temperature setting operation section 14. Then, the air volume switching operation section 41 and the room temperature setting operation section 42
are connected to ports P61 to P66 of Lst24, respectively. By operating the air volume switching operation section 41 and the room temperature setting operation section 42, the operation contents are processed inside the LSI 24, and the output circuit 29 and the room temperature control related circuit section are operated.

Furthermore, the relationship between the above configuration and the configuration shown in FIG. 1 will be explained. The indoor temperature detection element 2 corresponds to room temperature detection means, the output circuit 29 corresponds to indoor air volume switching means, and the A/D
The conversion circuit 52 corresponds to indoor setting temperature storage means, the comparison circuit 53 corresponds to comparison and determination means, the outdoor temperature detection element 6 corresponds to room temperature detection means, and the A/D conversion circuit 54 corresponds to outdoor setting temperature storage means. 1- corresponds to a degree storage means, and the comparison circuit 55 corresponds to a comparison determination means. The oscillation circuit 30 is an LSI 24
The LSI 24 corresponds to set time detection means, set temperature slide means, and output means.

Next, load-based operation control during cooling will be explained with reference to FIG.

At the start of operation, the indoor temperature T2 is set, and then the outdoor temperature T1 is sampled. At this time, the outdoor setting lLt degree To
If T1 > 7 □, the indoor temperature setting T2 is adjusted by T2-α, and the indoor air volume is similarly increased (and the rotational frequency of the compressor is also increased).

In other words, startup performance is improved and the lack of cooling capacity caused by heat radiation is eliminated. Conversely, in the case of TI (To), T2 is slid by +α to become 2+α, reducing the indoor air volume during cooling (and lowering the compressor rotation frequency).

In addition, if the outdoor temperature setting T□ is held and the sliding amount α is determined by determining the range in which the outdoor temperature falls, operation control that is more responsive to the outdoor temperature is possible.

Based on the above explanation, the control circuit shown in FIG. 3 controls the contents of the flowchart shown in FIG. 6.

Figure 6 shows the case where the outdoor temperature setting T□ has three stages.
In step 1, set the indoor temperature T2 and set the outdoor temperature T2.
1 is detected, and in step 2, a comparison is made with the outdoor set temperature T□ set in three stages, and in step 3, the shift amount α of the indoor set temperature is determined. In step 4, the shift amount is added to the set temperature T2 to reset it, and in step 5, the indoor air volume and compressor rotation frequency are changed, and the process moves to step 6. The outdoor temperature is sampled using the signal output from the time detection means as a signal. and transfer it to the front of step 2.

Also, during heating, exactly the same change occurs in the indoor set temperature T2 (indoor air volume and compressor rotation frequency are different), and the indoor temperature finally converges to the set value. The control operation in this case is the same as that during cooling, so the explanation will be omitted.

Effects of the Invention - As stated above, according to the present invention, it is possible to set the indoor thermostat corresponding to the outdoor temperature, and the performance of the air conditioner can be maintained even when receiving heat radiation (cold radiation) from the roof and walls. (to make the most of the room and sufficiently cool or warm the room)
Comfortable air conditioning can be achieved more quickly.

[Brief explanation of the drawing]

Fig. 1 is a block diagram expressing the load-based control of the present invention using function realizing means, Fig. 2 is a schematic diagram of indoor and outdoor units of an air conditioner showing an embodiment of the present invention, and Fig. 3 is a schematic diagram of the indoor and outdoor units of an air conditioner showing an embodiment of the present invention. FIGS. 4 and 5 are diagrams showing the operation control circuit diagram of the air conditioner, and FIG. 5 is an explanatory diagram of the load-based operation control of the air conditioner, and FIG. 6 is a flowchart showing the load-based operation control. 2... Indoor temperature detection element, 6... Room temperature detection means slide means, output means), 52... A/D conversion circuit (indoor set temperature storage means), 53... ...Comparison circuit (comparison and determination means), 54...A/o
Conversion circuit (outdoor set temperature storage means), 55...
Comparison circuit (comparison/judgment means). Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure No. 412! Figure 5

Claims (1)

[Claims] Outdoor thermoset temperature T stored in the set temperature storage means
_0 and the outdoor temperature T_ detected by the outdoor temperature detection means
1, a comparison determination means for comparing and determining the indoor thermoset temperature T_2 stored in the set temperature storage means and the room temperature T_3 detected by the indoor temperature detection means; In an air conditioner equipped with a set time detection means for detecting and outputting the elapse of a set time, an indoor air volume switching means for switching the indoor air volume, and a set temperature sliding means for sliding the indoor thermoset temperature T_2, at the start of operation, the above-mentioned An operation control device for an air conditioner, comprising an output means that outputs an output signal from a comparison determination means, determines an operation mode, performs operation, and drives the indoor air volume switching means and the indoor thermoset temperature sliding means.