JPS6071841A - Running control device of air conditioning device - Google Patents

Abstract

PURPOSE:To make the time for the actual room temperature to reach the desired value as short as possible and consequently contrive to improve the responsiveness by a method wherein a rotational frequency variable type compressor is kept at the predetermined higher rotational frequency at all times regardless of the temperature deviation between the room temperature and the desired value during the time ranging from the initial start of the titled device to the arrival of the actual room temperature at the desired value. CONSTITUTION:A first computing means 21 computes the temperature deviation between the room temperature and the desired value based upon the actual room temperature signal sent from a room temperature detecting menas 20 at initial start and the signal sent from a room temperature setting means 17. A first signal generating means 22 compares said temperature deviation with the predetermined value and zero. When the temperature deviation is equal to or larger than the predetermined value, the signal A corresponding to the maximum frequency is generated. When the temperature deviation is smaller than the predetermined value and larger than zero, the intermediate signal is generated, while when smaller than zero, the stop signal is generated.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides an air conditioner equipped with a variable rotation speed compressor, in which the variable rotation speed compressor is configured to converge the actual room temperature to a target room temperature value. This invention relates to an improvement in an operation control device for an air conditioner that can control the rotational speed of the air conditioner.

-3- (Prior Art) Conventionally, as an operation control device for this type of air conditioner, one disclosed in, for example, Japanese Unexamined Patent Publication No. 57-67735 has been known. This item, as shown in Figure 9,
The deviation from the room temperature target value increases by 0°5°C, divided into high temperature zones (A) to (C) and low temperature zones (D) to (F).
), and also set a frequency setting signal (for example, [75fi
z J , 165Hz J −r35Hz J , rO
For example, during cooling operation, the frequency setting signal is changed to the frequency corresponding to each zone each time the actual room temperature shifts from the zone to which it initially belongs (for example, (A)) to the zone (C) that is close to the set value. As a result, the rotation speed of the compressor is gradually lowered one step at a time, so that the room temperature actually converges to the target room temperature value.

By the way, you should perform cooling or heating operation (after the initial startup by turning on the operation switch, perform rapid cooling-4- (pull-down) or rapid heating (warming-up) operation to bring the actual room temperature to the target room temperature in a short time. It is more preferable in terms of air conditioning comfort to reach this level.

However, in the above-mentioned conventional system, after the compressor is rotated at a predetermined rotation speed corresponding to the temperature deviation between the actual room temperature and the target room temperature value upon initial startup, the rotation speed decreases as the actual room temperature approaches the target room temperature value. Since the number decreases one step at a time, there is a drawback that it takes more time than necessary to shift to the target temperature value, resulting in poor responsiveness.

(Object of the Invention) The object of the present invention is to maintain the variable rotation speed compressor at all times until the actual room temperature reaches the target room temperature value after the initial startup, regardless of the temperature deviation between the actual room temperature and the target room temperature value. By maintaining the rotation speed at a high rotational speed and driving it, the time required for the actual room temperature to reach the target room temperature value (pull-down time or warming-up time) is shortened as much as possible, and its responsiveness is improved. It is in.

= 5 − Furthermore, when the compressor is held at a predetermined high rotational speed and driven to rotate at the time of initial startup, the compressor may not maintain the predetermined high rotational speed as expected depending on the setting state of the room temperature target value. The rotation may not be driven. That is, for example, in cooling operation, if the target room temperature value is changed to be lower than the actual room temperature immediately after the operation switch is turned on in a situation where the target room temperature value is higher than the actual room temperature, the compressor will Initially, the engine is stopped and placed in a state similar to the restart waiting state, and then restarted at a rotation speed corresponding to the temperature deviation from the new room temperature target value. As a countermeasure to this, even when the room temperature target value is changed immediately after the operation switch is turned on, the variable rotation speed compressor is held at a predetermined high rotation speed and rotated, thereby improving the responsiveness described above. The goal is to ensure that the goals are achieved.

(Configuration of the Invention) In order to achieve the above object, the configuration of the present invention, as shown in FIG. 6- Temperature detection means (11), room temperature setting means (17) for setting the room temperature 1 value ('Tv), first start detection means (2o) for detecting the first start, and the first start detecting means (2o) for detecting the first start. Detection means (2
When the first startup is detected by F), the actual room temperature signal of the room temperature detection means (11) and the room temperature setting means (17) are detected.
), the first step calculates the temperature deviation (ΔT+) between the actual room temperature (Ts) and the target room temperature value (Tv+).
The calculation means (21) compares the tuning deviation (ΔT+) of the first worship means (21) with a predetermined value (T1) and zero, and after the predetermined value (T1), the maximum frequency is reached. A first frequency setting signal generation unit that generates a frequency setting signal corresponding to an intermediate frequency when the corresponding frequency setting signal is smaller than a predetermined value (T1) and greater than or equal to zero, and a frequency setting signal corresponding to stop when it is smaller than zero. means (22);
When the frequency setting signal corresponding to the stop of the first frequency setting signal generating means (22) is generated, the room temperature setting means (11)
a determination means (23) for determining whether or not the room temperature target value (Tv) has been changed;
- When it is determined that the room temperature target value (Tv) has changed, the actual room temperature signal of the room temperature detection means (11) and the room temperature setting means (
a second calculation means (24) for calculating the temperature deviation (ΔT2) between the actual room temperature (Ts) and the new room temperature target value (TV2) based on the new set value signal of 17);
4) The new temperature deviation (ΔT2) is compared with a predetermined value (T1) and zero, and when it is greater than or equal to zero, the generation of the frequency setting signal corresponding to the stop of the first frequency setting signal generating means (22) is prevented. , and when the frequency is equal to or higher than a predetermined value (T1), the frequency setting signal corresponding to the maximum frequency is set to a predetermined value 1ifl (T
1) Second frequency setting signal generating means (25) which generates a frequency setting signal corresponding to the intermediate frequency when the frequency is smaller than zero, and the first and second frequency setting signal generating means (22).

(25) Based on the maximum frequency setting signal, intermediate frequency setting signal, or zero frequency setting signal, the variable rotation speed compressor (
a frequency converter (16) that rotationally drives or stops 3) at a maximum rotational speed or an intermediate rotational speed, respectively; and a holding means (26) for holding the state until the temperature deviation (ΔT) of the first calculation means (21) or the 28th N calculation means (24) becomes zero, and after the initial startup, the room temperature target value is set. Even when the rotation speed is changed, the variable rotation speed compressor is maintained at the maximum rotation speed or an intermediate rotation speed and is driven to rotate until the actual room temperature reaches the target room temperature value.

(Effects of the Invention) Therefore, according to the present invention, the compressor is driven to rotate while always maintaining the maximum rotation speed or intermediate rotation speed until the actual room temperature reaches the room temperature target value after the initial startup. Regardless of whether or not the room temperature target value is set to change, the time it takes for the actual room temperature to reach the room temperature target value (pull-down time or warming-up time) can be shortened as much as possible, so the responsiveness is definitely improved. This enables even more comfortable heating and cooling.

<Example> -9- Hereinafter, an example of the present invention will be described in detail based on the drawings.

Fig. 2 shows an embodiment in which the present invention is applied to a heat pump air-conditioning system, in which (1) is an outdoor unit and (2) is an indoor unit, where the outdoor unit (1) has a variable rotation speed type inside. Compressor (
3), four-way switching valve (8), expansion mechanism for heating and cooling (4a),
(4b) and an outdoor heat exchanger (5).
) is equipped with an indoor heat exchanger (6) inside. The solenoid valve (SV) opens when the rotation speed of the compressor (3) is equal to or higher than a predetermined value, and closes when the rotation speed of the compressor (3) is lower than a predetermined value. Each of the devices (3) to (6) is connected by a refrigerant pipe (7) to form an open circuit, and during cooling operation, the four-way switching valve (8) is connected as shown by the solid line in the figure. By switching and circulating the refrigerant as shown by the solid arrow in the figure, the heat contained in the refrigerant is radiated to the outdoor air in the outdoor heat exchanger (5), and then the heat is absorbed from the indoor air in the indoor heat exchanger (6). This process is repeated to cool the room, while during heating operation, the four-way switching valve (8) is switched as shown by the broken line in the figure to circulate the refrigerant as shown by the broken line arrow in the figure, thereby transferring and receiving heat. Indoor heating is done in the opposite way to the above.

The variable rotation speed compressor (3) is controlled by a control device (1).
The rotation speed is controlled by 0).

The control device M (10) has an internal configuration as shown in FIG.
12) is an A/D converter that converts the actual room temperature signal from the room temperature sensor (11) from analog to digital, (13) is an operation switch for setting a target room temperature value, and (14) is the operation switch. The setting value (Tv
＞Multiple light emitting diodes A covering the lighting display (target room temperature value)
- a set value display consisting of (14a)... (15);
receives the digitally converted actual room temperature signal from the A/D converter (12) and the operation signal from the operation switch (13), and displays the set value (Tv) on the set value display (14).
), and also generates a frequency setting signal based on 70-CH 7-TO 11- of FIGS. 8(a), (b), and (c); The variable rotation speed compressor (
3) is an inverter that rotationally drives. Therefore, the room temperature sensor (11) constitutes a room temperature detection means, the operation switch (13) and set value display (14) constitute a room temperature setting means (17), and the inverter (16) constitutes a frequency conversion device. There is.

Moreover, inside the microcomputer (15),
As shown in Fig. 4, the actual room m (Ts) and the set value (1-V
), the high temperature side region (Z+), (Za >, (Za)), the stable region <Z4), and the low temperature side region (Z5) corresponding to the deviation ΔT (=Ts − Tv).

Temperature ranges consisting of (Za) and (Zl) are input and stored in advance, and seven operating frequencies (0°30.4.0
, 50.60.70.75Hz) are input and stored in advance.

-12- Next, the operation of the microcomputer (15) will be described for the case of cooling operation. The microcomputer (15) has a function II to set the rotation speed of the compressor (3) to a predetermined value at the time of initial startup, and also has the function ii to set the rotation speed of the compressor (3) to a predetermined value at the time of initial startup. It descends as shown by the dashed arrow, and the setting fin (
Tv) and the deviation (ΔT) moves to the region (Z5), the step N is lowered by one step, and it further decreases until the actual room temperature (Ts) becomes <Tv -0, as shown by the symbol ■ in the figure.
When reaching 5℃, the deviation (ΔT) changes from the area <Z5) to (Z6)
When moving to , step N is lowered by two steps and the actual room 1
When fl (TS) reaches <TV-1°0℃ and shifts from the region (Z6) to (Zl) as indicated by the symbol ■ in the figure, the step N is set to the minimum value of 11'', while the actual room temperature ( S) rises as shown by the solid arrow, and as shown by the symbol ■ in the figure, < Tv
+Q, when it reaches 5°C and the deviation (ΔT) moves from the region (Z4) to the region (Za), the step N is raised by one step, and it further increases to <Tv+1.0 as shown by the symbol ■ in the figure.
When the temperature reaches −13°C and shifts to the region (Za), the step N is increased by two steps, and the actual room temperature (TS) becomes < Tv as shown by the symbol ■ in the figure.
The 211th function operates to set the step N to the maximum value "7" when the temperature reaches +1.5°C and shifts to the region (Zl), and the timer time (t) is activated when each step N changes. For example, activate the timer for 3 minutes), and if the temperature range to which the temperature deviation (6 teeth) belongs is the same at the start and end of time measurement and is in the stable range (Z4), step N
remains unchanged, and the ``high temperature side region (Zl) ~
(z3), raise it by one step to improve convergence to the set value (Tv), and lower the temperature to the low temperature region (Z5) to (Zl).
, the 3rd vIA function operates to lower the temperature by one step when the timer is in the middle of the time measurement, and as shown in FIG. It also has a fourth function that does not perform step processing even if the same step processing as the previous processing is performed again (see symbol ■ in the figure).These operations are specifically performed by the fourth function. Figure 8 (a), (b)-1
4- The operation start flow in and (c) is carried out based on the thermoset change check flow at the start of operation and the frequency determination flow (S1 to S in Fig. 8 (a) and (c) and in the same figure (b) SC+ to SCa indicate step numbers).

That is, at the start of operation 1]- in FIG. 8(a),
First, in Sl, the initial startup end flag F, which will be described later, is set to "1".
], and if No, that is, at the first startup,
At S2, the set value (Tv+) is determined according to the actual room temperature signal of the room temperature sensor (11) and the operation signal of the operation switch (13).
After determining the temperature deviation (ΔT+) based on the above, it is compared in magnitude with a predetermined temperature value (T+) (for example, 1.5° C.). Then, the temperature value (T+) or more (Ts - T
In the case of YES (v1≧T+), it is determined that rapid cooling operation is necessary, and in S3, step N is initialized to the maximum value "7" and a frequency setting signal of the maximum frequency is sent to the inverter <16). After outputting, the initial startup end flag F is set to "1" in S4 and the process returns. On the other hand, in S2, the temperature width -15- difference (ΔT+) is smaller than the predetermined temperature value (T+)
In the case of , the temperature deviation (ΔT1) further becomes ``85''.
If the answer is "No" or greater than "0", it is determined that cooling operation is required, but the heat load is small and rapid cooling operation is not necessary, and step N is performed in S6. is initially set to an intermediate value, for example "4", and a frequency setting signal of the intermediate frequency (for example 50H2) is output to the inverter (16), and in step S7, a timer is set to start measuring a predetermined time (1). Thereafter, in S4, the initial startup end flag F is set to "1" and the process returns.

If the temperature deviation (ΔT+) is smaller than 0 in S5, it is determined that cooling operation is not required, and in S8 step N is set to 1, that is, the compressor (3
) remains stopped and returns. And next time,
Proceed to the thermoset change check flow at the start of operation in Figure 8 (b).

Next, for convenience, before explaining the rest of the start-up flow:
Thermoset change check tool at start of operation 16 - Explanation. That is, in Set of the change check flow, it is determined whether or not the set value (Tv) has been changed based on the operation signal from the operation switch (13), and if there is no change, the process immediately returns to the operation start flow.

On the other hand, if there is a change in Set and YES,
At Sc3, a new set value (
After sifting a new temperature deviation (ΔT2) based on the current temperature difference (TVz), the new temperature deviation (ΔT2) is compared in magnitude with a predetermined adjustment value (T1). Then, warm 1ie [(T+) or more (Ts TV2≧
If YES for T+), it is determined that rapid cooling operation is required due to the change in the set value, and in S04 step N is changed from f'IJ, which corresponds to stopping the compressor, to "7", which is the maximum value of 1. After setting and outputting a frequency setting signal of the maximum frequency to the inverter (16), the initial startup completion flag F is set to "1" at SC2 and the process returns.

On the other hand, in the case of No in S03 where the new temperature deviation (ΔT2) is smaller than the predetermined temperature rjI value (T+), it is further determined whether the new temperature deviation (ΔT2) is smaller than "0" in SCs. Judgment, ``
0" or higher, it is determined that mid-capacity cooling operation is required due to a change in the set value, and the step N in Scs is changed from "1", which corresponds to stopping the compressor, to an intermediate value, e.g., "4". ” and outputs a frequency setting signal of intermediate frequency (for example, 50H7) to the inverter (16), and sets the timer in S07 to start measuring the predetermined time (1), and then finishes the initial startup in SC2. Set flag F to "1" and return.

Also, in SC5, the new temperature deviation (ΔT2) is “
If Y E S is smaller than 0, set step N at 5 (is) to 1, which corresponds to the stopped state of the compressor, and then return.Next time, follow the frequency determination flow in Figure 8 (c). Step N starts increasing/decreasing control according to the temperature deviation (ΔT2).

Next, the rest of the operation start flow shown in FIG. 8(a) will be explained. In other words, when the initial startup-18-end flag F is "1" (YES) in Sl, that is, when normal cooling operation is performed, the temperature deviation (
ΔT+) or (ΔT2) (hereinafter referred to as ΔT) is "0"
In other words, it is determined whether the actual room temperature (Ts>) has reached the set value (TV+) or (TV2) (hereinafter referred to as TV) due to the cooling operation, and if No, the above-mentioned timer is further set in S In. It is determined whether or not the measurement of time (1) has been completed, and if the measurement is completed (YES), the set value (Tv
) is judged to be gradual, and increases step N to the maximum value "7" in Su, and then returns; on the other hand, if the measurement is not completed yet, step N is returned.
Hold as is and return immediately. Further, in the case of YES in S3 that the actual room temperature (TS > has reached the set value (TV')), step N is lowered by two steps in S12, and then the process returns.

Next time, the process proceeds to the frequency determination flow shown in FIG. 8(c) and starts increasing/decreasing control in step N according to the temperature deviation (ΔT).

Then, at S +a in Figure 8 (c), the current temperature -1
9 Once the deviation (ΔT) is in the temperature range (Zl) to (Zl) in Figure 4
After determining which region it is in, it is determined whether the current temperature deviation (ΔT) is in the high temperature region (Zl) to (Z3), and Y in
In the case of ES, the timer time (1
) is completed. If the measurement is not completed (No), at S+s, the temperature range (Zi) to which the current temperature deviation (8T) belongs is changed to the temperature range (7it) to which the temperature deviation (ΔT') obtained in the previous process belongs.
The current temperature deviation (ΔT) is the first in the temperature range (
74), it is determined whether or not it has moved to the area (Z3), and if YES, step N is set to 1 in 816.
After raising the stage, a timer is set in S17 to start measuring timer time (1), and the process returns. On the other hand, in the case of No that does not result in a transition to the region (Z3) in SL5, it is further determined whether the current temperature deviation (ΔT) in Sea has shifted from the region (Z3) to the region (Zl) for the first time,
Territory 1ii! (Zl) If YES, 819
After raising step N by two steps at -20-, set the timer with Say and return. Also, with S + s, the area (zl)
If the answer is No, it will not proceed to S t.

For the first time, the current temperature deviation (ΔT) is in the region (zl)
It is determined whether or not the transition has been made to the area (zl), and if the transition is YES, step N is set to the maximum value "7", and then the timer is set at 817 and the process returns. If so, please return immediately.

On the other hand, if YES in S14 indicates that the timer time (1) measurement has been completed, step N is increased by one step in 822.
After setting the timer and starting measuring the timer time (1) at 823, the process returns.

In addition, in the case of No, the current temperature deviation (ΔT) in Sea is not in the high temperature side region (Zl) to (Z3), S2
At 4, the current temperature deviation (ΔT) is in the stable region (74)
YES in the stable region (Z4)
In this case, it is determined that step N is appropriate and the process immediately returns. On the other hand, if NO is not in the -21- stability region (Z4), it is determined that the current temperature deviation (Δ■) is in the low temperature region (Z5) to (Zl), and the process proceeds to 825.

Next, in 825, it is determined whether or not the measurement of the timer time (1) has been completed. If NO, the measurement is not completed, then in 826, the temperature deviation (ΔT) has reached the region (
It is determined whether or not the area has moved from Z4) to the area (Z5), and if YES, step N is set to 1 in S21.
After the step is lowered, a timer is set in S28, the timer time (1) is started, and the process returns. On the other hand, S
If No, the current temperature deviation (8T) does not shift to the region (Z5) in 2s, the current temperature deviation (8T) changes to the region (Z5) for the first time in 829.
It is determined whether or not the area has transitioned from Z5) to the area (Z6), and if YES, step N is changed to 2 at 830.
After the step is lowered, a timer is set at 828 and the process returns. In addition, in the case of NO in 829 to not shift to the region (76), it is further determined in 831 whether the current temperature deviation (ΔT) has shifted from the region (Z6) to the region (Zl) for the first time. If the answer is YES, the step N is set to the minimum value "2" in step 832, and then the timer is set in S-kan and the process returns. If the answer is No, the process does not move to the area <77), the process immediately returns. Return.

Furthermore, in the case of YES in the above step 825 when the timer time (1) measurement is completed, step N is executed in S33.
is lowered by one step, and a timer is set at Sγ, and then the process returns.

Therefore, the first start detection means detects the first start by determining whether the first start end flag F is "1" at step 81 of the operation start flow in FIG. 8(a). (20), and when the initial startup detecting means (20) detects the first startup, that is, when the determination in Sl is No, the flood deviation (ΔT+) (= Ts −TV +
), the actual room temperature (T
Temperature deviation (ΔT+) between S) and room temperature target value (TV+)
The first calculation means (21) is constructed such that the first calculation means (21) has one function. Also, comparison of the temperature deviation (ΔT+) in the latter stage of S2 and S5 with the predetermined value (T1) and rOJ, and setting step N to the maximum value in 83,
By setting step N to an intermediate value in S6 and setting step N to "1" in S8, the temperature deviation (
ΔT+) is compared with a predetermined value (T1) and "0", and when it is greater than or equal to the predetermined value (T1), the maximum frequency setting signal is set as
A first frequency setting signal generating means (22) is configured to generate an intermediate frequency setting signal when the frequency is smaller than a predetermined value (T1) and greater than or equal to zero, and a zero frequency setting signal when it is smaller than zero.

Furthermore, S in Figure 8 (b) following $8 in the operation start flow
By determining whether or not the set value (TV+) has changed in C+, the actual room temperature (Ts
) is lower than the room temperature set value (TV+), the determination means (23) determines whether or not the room temperature target value has been changed.
), and when the determination means (23) determines that there has been a change in the set value, the SC3 front stage -24- displays a new temperature deviation (ΔT2), thereby setting the room temperature target value. Temperature deviation (ΔT2) between the actual room temperature (Ts> and the newly set room temperature target value (TV2) at the time of change)
It constitutes a second calculation means (24) configured to calculate. In addition, the new temperature deviation (ΔT2> in the 5C31G stage and SCs is compared with the predetermined value (T1) and "0", and the change setting of step N to the maximum value in SC4 and the intermediate value of step N in Sc6 By changing the settings, the new temperature deviation (ΔT2) is compared with the predetermined value (T1) and rOJ, and when it is greater than "0", the generation of the zero frequency setting signal is inhibited, and when one is greater than the predetermined value (King 1). When , the maximum frequency setting signal is set to a predetermined value (T
1) A second frequency setting signal generating means (25) is configured to generate an intermediate frequency setting signal when the frequency is smaller than 0 and -L.

Also, the determination at 89 in FIG. 8(a) is N.

In the case of , that is, when the temperature deviation (ΔT) is not zero, S
Timer time (1) measurement completed in IO = 25
- By immediately returning after confirming that no During operation after the initial startup (when the determination at S+ is YES), the rotational driving state of compression 1 (3) by the inverter (16) is maintained until the temperature deviation (ΔT) becomes zero. holding means (26)
It consists of

Therefore, in the above embodiment, when the temperature deviation (ΔT+) is equal to or greater than the predetermined value (T1) at the time of initial startup, the step N is set to the maximum value "7", while the predetermined value (
T1) is smaller than zero, step N is set to the intermediate value "4" (in the latter case, timer time < 1
), the compression is 1ff (3
) is rotated at the maximum rotation speed or an intermediate rotation speed, and the first start of the cooling operation is performed. Then, until the temperature deviation (ΔT+) becomes zero due to this cooling operation, in other words, the actual room '14 (Ts >
-26- reaches the set value (TV+) for the first time (however, during the cooling operation in which the compressor (3) is started for the first time at an intermediate speed, it is during the above period and the timer time (1
) until the measurement of ) is completed.
) is maintained as it is (Ss→S 1
0 → RETURN), the time it takes for the actual room temperature (Ts) to reach the room temperature set value (Tvl) for the first time is shortened as much as possible compared to the conventional system in which the rotation speed of the compressor decreases one step at a time. It is possible to improve the responsiveness.

Moreover, when the thermal deviation (ΔT+) is smaller than 10'', that is, when the actual room temperature (TS) is lower than the set value (TV+), the compressor (
3) is controlled to stop, but immediately after that the set value (TV+)
When the actual room temperature (TS) is changed and set lower than the actual room temperature (TS), the actual room temperature (Ts) and the new set value (TV
Compression 111 (3) is driven to rotate at the maximum rotation speed or intermediate rotation speed by the maximum frequency setting signal -27- or intermediate frequency step constant signal according to the temperature V and deviation (ΔT2) from 2), and this drive Since the state continues until the new set value (Tv 2) is reached (S8), responsiveness can be improved even when the set value (TV+) is changed. In addition, compressor (3)
When the cooling operation is started for the first time at an intermediate speed, the actual room temperature (TS) changes to the room temperature target value (TV+) for the first time.
When the measurement of timer time (1) is completed before reaching , it is determined that the cooling capacity is slightly insufficient when the compressor (3) is operating at an intermediate speed, and step N is started.
is increased to the maximum value "7" (So), and the rotational speed of the compressor (3) increases, thereby taking protective measures to increase the cooling capacity.

In the above embodiment, the case where the present invention is applied to the cooling operation of a heat pump type air-conditioning/heating device has been described, but it goes without saying that the present invention can be similarly applied to the heating operation or to a device exclusively for heating or cooling. It is.

In addition, the present invention uses a heat pump = 28 as in the above embodiment.
Needless to say, the present invention is not limited to a complete air conditioner, and can be similarly applied to various other types of air conditioners.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the configuration of the present invention, Figs. 2 to 8 show embodiments of the present invention, Fig. 2 is a refrigerant piping system diagram when applied to a heat pump air conditioning system, and Fig. 3 is a block diagram showing the internal configuration of the control device, FIGS. 4 and 5 are diagrams each showing the memory contents of the microcomputer, FIGS. 6 and 7 are diagrams each showing the operation of the microcomputer, and FIG. ), (b) and (c)
9 is a flowchart explaining the operation of the microcomputer, and FIG. 9 is a diagram showing the correspondence between zones and frequency setting signals in a conventional example. (3)... variable speed compressor, (11)... room temperature sensor (room temperature detection means), (16)... inverter (
frequency converter), (17)... room temperature setting means, (2
0)...First startup detection means, (21)...First detection means, (22)...First frequency setting signal generation means-2
9, first stage, (23)...discrimination means, (24)...second calculation means, (25)...second frequency setting signal generation means, (
26)...Retaining means. -30- Funeral Figure 4 Figure 5 Figure 86 Figure 7 Figure 9 Closed

Claims (1)

[Claims] (1) In an air conditioner equipped with variable rotation speed compression tj)I (3), room temperature detection means (1) for detecting indoor temperature is used.
1), a room temperature setting means (17) for setting a room temperature target value (Tv), an initial start-up detection means (20) for detecting the initial start-up, and an initial start-up detection means (20) for detecting the initial start-up. is detected, the temperature deviation (ΔT+) between the actual room temperature (TS > ) and the room temperature target value (TV, ) is calculated based on the actual room temperature signal of the room temperature detection means (11) and the set value signal of the room temperature setting means (17). First calculation means (21) for calculation
The temperature deviation (ΔT+) of the first calculation means (21) is compared with a predetermined value (T1) and zero, and when the temperature deviation (ΔT+) of the first calculation means (21) is equal to or higher than the predetermined value (T1), a frequency setting signal corresponding to the maximum frequency is set.
a first frequency setting signal generating means (22) that generates a frequency setting signal corresponding to the intermediate frequency when it is smaller than a predetermined value (T1) and greater than or equal to zero, and a frequency setting signal corresponding to stop when it is smaller than zero; and the first
determining means (23) for determining whether or not the room temperature target value (Tv) of the room temperature setting means (11) has been changed when the frequency setting signal corresponding to the stop of the frequency setting signal generating means (22) is generated; The determination means (23) determines the room temperature target value (
When it is determined that a change in Tv) is detected, the
11) second calculation means for calculating the temperature deviation (ΔT2) between the actual room temperature (Ts) and the new room temperature target value (TV2) based on the actual room temperature signal and the new set value signal of the room temperature setting means (17); (24) and the new temperature deviation (ΔT2) of the second calculation means (24) are compared with a predetermined filI (T+) and zero, and when it is greater than zero, the first frequency setting signal generation means (22) is stopped. The generation of the frequency setting signal corresponding to
When the value is smaller than zero, the second frequency setting code generating means (2) generates a frequency setting signal corresponding to the intermediate frequency.
25), and the first and second frequency setting signal generating means (
22), based on the maximum frequency setting signal, intermediate frequency setting signal, or zero frequency setting signal of (25), control the rotational speed variable compressor (3) to the maximum rotation speed or intermediate rotation speed or stop control, respectively. Frequency conversion device (1
6) and the rotational drive state of the variable rotation speed compressor (3) by the frequency converter 16).
) or a holding means (26) for holding the temperature*a difference (ΔT) of the second brightening means (24) until it becomes zero.