JPS6354545A - Air conditioner - Google Patents

Abstract

PURPOSE:To automatically create a pleasant environment by directly inputting the body-sensed temperature feeling by providing a temperature setting determining means which determines the temperature setting by the input signal from an input switch section representing the body-sensed temperature feeling and the detected signal from a room temperature sensor, and a modulation control means which modulates the delivered air temperature in accordance with the body-sensed temperature. CONSTITUTION:When a body-sensed temperature input switch 15 which matches the temperature feeling of 'hot' or 'cold' by a user is switched on, a temperature setting determining means (micro computer 10) automatically modulates the room temperature setting in response to the body-sensed temperature switch input based on the room temperature TR detected by a temperature sensing resistance element 102. Also, a comparison is made between the original temperature setting Tso and the room temperature TR, and, if TR<Tso, an ON command is outputted from an output circuit 14 to a compressor 106. If TR>Tso, an OFF command is given to a compressor 16. The compressor is so turned on and off in accordance with the operation mode, and a room fan motor 16 is concurrently controlled. That is, the temperature of the delivered air is modulated to moderate the feeling of the user. As a result, an environment suited to the user can be obtained.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioner that can provide a comfortable environment according to the user's wishes, and particularly relates to an air conditioner that can provide a comfortable environment according to the user's wishes.
The present invention also relates to an air conditioner that can automatically change the set temperature according to the thermal sensation of "hot".

[Conventional technology]

FIG. 10 is a control block diagram of a conventional heat pump type air conditioner disclosed in, for example, Japanese Patent Laid-Open No. 56-137029. In the figure, 101 is an operation switch;
102 is a semiconductor temperature-sensitive resistance element such as a thermistor that senses the room temperature of an air-conditioned room (not shown); 103 is a resistance element 102;
An A/D (analog/digital) converter that converts a voltage value that changes depending on the room temperature into a digital signal, 104 is a set temperature setting device for the air-conditioned room, and 105 is a predetermined program that detects the turning on of the operation switch 101. A microcomputer 106 is a compressor that is controlled to start and stop by the microcomputer 105, which is an LSI that operates based on the microcomputer 105 (not shown).

The microcomputer 105 is an A/D converter 10
A room temperature storage device 107 reads the output value of No. 3 at a predetermined period and stores it as room temperature data, and increases or decreases from the center value to a predetermined value within the vehicle according to an increase/decrease signal from the setting device 104 based on a predetermined center value. set temperature data W108 that stores the value to be set as set temperature data, and a storage device 10.
8 set temperature T.

and a comparator 109 that compares the data with the room temperature data r, l stored in the storage device 107 and issues a signal of "1" (operation) or "0" (stop) to the compressor 106.

Next, the operation will be explained. When the operation switch 101 is turned on, the microcomputer 105 starts operating, and the comparator 109 compares the room temperature data T, l with the set temperature T desired by the customer. For example, T, l<
T, the comparator 109 provides an operating signal to the compressor 106. Therefore, the air conditioner starts the heat pump heating operation using the compressor 106. Therefore, the room temperature increases and approaches the set temperature T. Room temperature data T
When R exceeds the set temperature F, the comparator 109 issues a stop command to the compressor 106, and the air conditioner suspends heating operation. After that, when the room temperature decreases to ■゛□〈F, an operation command is issued to the compressor 106, and in order to repeat this process, the air conditioner performs heat pump heating intermittently to maintain the room temperature approximately near the set temperature T. do.

[Problem that the invention seeks to solve]

In the conventional air conditioner as described in section 1-1, the room temperature is controlled by specifying the set temperature using the setting device 104, so the user can
It is not possible to directly input the thermal sensation of "hot" or "cold," so when you feel "hot" or "cold,"
There was a problem in that the thermal sensation had to be replaced and inputted with the set temperature as appropriate.

This invention was made in order to solve the above-mentioned problems, and the user felt "hot".

The purpose of the present invention is to provide an air conditioner that can automatically provide a comfortable environment by directly inputting the thermal sensation of "cold" by operating a switch.

[Means for solving problems]

The air conditioner according to the present invention helps the user feel "hot".

A set temperature determining means has a plurality of input switch sections that express a thermal sensation such as "cold" and determines a set temperature based on an input signal of the switch section and a detection signal of an indoor temperature detector; It also includes a change control means for changing the temperature of the blown air.

[Effect]

In this invention, when the thermal sensation input switch that matches the user's thermal sensation is turned on, the set temperature determining means sets the temperature inside the room based on the room temperature detected by the temperature detector in accordance with the input of the thermal sensation switch. The set temperature is automatically changed, and at the same time, the blowing air temperature change control means is activated so that the blowing air temperature is colder for the user.

Changes will be made to alleviate the feeling of being confused by heat. This makes it possible to automatically provide a comfortable environment that matches the user's wishes.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figures 1 to 4 show a first diagram of an air conditioner according to the present invention.
Fig. 1 is a block diagram of the entire control system, Fig. 2 is a front view of the input switch section, Fig. 3 is a flowchart showing the operation of the control system, and Fig. 4 is a room temperature change characteristic diagram. .

In FIG. 1, numeral 10 is a microcomputer equipped with a function of determining a set temperature according to the thermal sensation of the user and a function of temporarily controlling indoor ventilation.
) 11, and an input circuit 12. connected to this CPU 1. It has a memory 13 and an output circuit 14.

The input circuit 12 includes an A/C converter that converts the voltage value of a semiconductor temperature-sensitive resistance element 102 such as a thermistor that senses the room temperature of the air-conditioned room, which changes depending on the room temperature, into a digital signal as in the past.
A D converter 103 is connected, and an input switch 15 representing thermal sensation is also connected, and the input switch 15
As shown in FIG.
It consists of a "when it's cold" switch 15b. The output circuit 14 also includes a compressor 106, which is controlled to start and stop based on future output signals. and an indoor fan motor 16 whose rotation is controlled.

Next, the operation of this embodiment configured as described above will be explained according to the procedure shown in the flowchart of FIG.

First, when the operation switch 101 is turned on, the microcomputer 10 starts operating and the program shown in FIG. 3 starts. As a result, first, in step 31, the initial setting temperature Tso (see FIG. 4) is set. In the next step 32, the room temperature T detected by the temperature sensitive resistance element 102 is taken into the microcomputer 10 through the A/D converter 103. Then, in the next step 33, the set temperature T'so and the room temperature TR are compared, and T, l<T. It is determined whether or not. here,
When it is determined that T++<Tso, the process moves to step 34, where an ON command is output from the output circuit 14 to the compressor 106, and TR<T. When it is determined that TR>Tso is not the case, the process proceeds to step 35, where an off command is given to the compressor 106, and the compressor is controlled on and off in accordance with the operating mode.

In FIG. 3, steps 36 to 40 show a processing flow for determining the set temperature. Step 36 is the initial setting temperature T. And room? This is to determine whether the temperature difference with MLT R is smaller than a certain value ΔTo, and TSO-TR<ΔT,
If not, that is, if the range of ΔTo is exceeded, step 3
Returning to step 2, if it is determined that TSOTR<ΔTo, that is, in the 8To region, proceed to step 37, and switch 1
5a.

15b is input. If it is determined that there is a switch input here, the process moves to step 38, and the switch 15b is input "when it's cold" or when it's "hot".
It is determined whether the switch 15a is input. In step 38 “
If it is determined that the input is "When it's cold" switch 15b, the process moves to step 39 and the set temperature T, 1 (fourth
(see figure) by a certain value, for example, 2 degrees, based on the room temperature TR at that time. In addition, when it is determined that "when it is hot" switch 15a is powered manually, step 4
0, the set temperature TSI is lowered by a certain value, for example, 2 degrees, based on the room temperature TR, and the process returns to step 32.

Further, in FIG. 3, steps 41 to 44 are a flow for indoor fan control, and in step 41, the number m of output steps of the fan motor 6 is reduced by -1, for example, to m
-1 to reduce the blowing capacity of the indoor blower (not shown). Then, in the next step 42, a timer roughly configured in the microcomputer 0 is started, and in the next step 43, it is determined whether the timer has elapsed for a certain period of time, for example, 3 minutes. When the timer determines that 3 minutes have elapsed, the fan motor 16
The control for reducing the number of output steps is ended, and step 44
, the number of output steps of the fan motor 16 is added inversely by the number reduced in step 41, and the output step number of the fan motor 16 is
Restores the number of output steps.

In this way, when the user feels "cold" during heating operation of the air conditioner, the "when cold" switch 1.5 is activated.
b The set temperature is automatically set to a temperature raised by 2 degrees, and by reducing the blowing capacity of the indoor blower, the pressure (temperature) of the heat exchanger (not shown) increases, and the Suita air temperature increases. As a result, the user can eliminate the feeling of being "cold" and immediately feel comfortable.

On the other hand, from the next operation after the switch 15 is operated, at the changed set temperature, step 32 shown in FIG.
The compressor 106 is controlled on and off according to the procedure from 1 to 3, and the indoor air-conditioning environment is controlled so that the room temperature matches the set temperature T31.

FIG. 4 is a room temperature change characteristic diagram when heating operation is performed based on this embodiment. Heating operation starts with the initial set temperature as the target. The user selects T' + time time cut-off setting temperature T.
,. Before the difference between the temperature and the room temperature reaches ΔTo, when you think that it is still cold 1, even if you turn on the "cold" switch 15b, the set temperature does not change and remains at T, o. Operation continues. Next, the initial setting temperature TSO after T2 hours
After the difference between the room temperature and the room temperature has become smaller than ΔTo, if you still feel "cold" and press the "when cold" switch 15b, the set temperature will be set a certain value higher than the room temperature at that time, and the room temperature will be set to a certain value higher than the room temperature at that time. Driving to rise further is ¥a'Il
! f, be done. Conversely, when the "when it is hot" switch 15a is turned on, the set temperature is set to a certain value lower than the room temperature at that time, and the operation is stopped until the room temperature falls below the set temperature.

5 and 6 show a second embodiment of the present invention in which the comfortable environment is controlled according to the user's intention by changing the operating frequency of the compressor. The figure is a block diagram showing the overall system configuration, and FIG. 6 is a flow chart showing the operation.

In FIG. 5, 50 is a microcomputer that constitutes the control section of the compressor, and includes a CPU 51 and an input circuit 52 connected thereto. It is equipped with a memory 53 and an output circuit 54, and the input circuit 52 receives a temperature signal detected by a temperature-sensitive resistive element 102 that detects the indoor temperature, and also outputs "when it's cold" and "when it's hot." An output signal from the input switch section 15 representing a warm sensation of " is inputted." 55 is a compressor drive circuit controlled by the output signal from the output circuit 54, which includes the room temperature detected by the temperature-sensitive resistance element 102 and the input switch 15.
Control command data calculated by the CPU 51 based on the input signal from the thermal switch is supplied through the output circuit 54, whereby the drive circuit 55 controls the operating frequency supplied to the compressor motor 56. . Further, the drive circuit 55 is connected to a power supply circuit 57, and the power supply circuit 57 is connected to a commercial power supply 58.

In the control system configured as described above, when the microcomputer 50 starts operating, the control program shown in FIG. 6 starts. Accordingly, first, in step 60, a room temperature detection process is performed in which the room temperature detected by the temperature-sensitive resistance element 102 is input to the CPU 51 through the input circuit 52, and in the next step 61, the operating frequency (H2) of the compressor is determined. do. And the next step 62
In step 63, it is determined whether or not there is an input from the input switch section 15, and when it is determined that there is a switch input, in the next step 63, it is determined whether there is a 'when it is cold' switch input or a 'when it is hot' switch input. If it is determined that the input is for the "when it is cold" switch, the process moves to step 64 and the compressor operating frequency H2 is increased to +
H, (fixed value) is increased, and this is determined as the set frequency. Thereafter, the process proceeds to step 65, where the set operating frequency data is outputted to the compressor drive circuit 55 through the output circuit, thereby controlling the output frequency supplied to the compressor motor 56 to become H, +H8. Compression motor 5
6 is increased for a certain period of time, increasing the air conditioner's heating performance, increasing the pressure (temperature) of the heat exchanger, and raising the Suita air temperature to a temperature where the room temperature does not feel cold. Drive it to rise.

Even in the system of controlling the operating frequency of the compressor as described in Section 2, the same effects as in the first embodiment can be obtained.

Figures 7 and 8 show a third embodiment of the present invention in which a comfortable environment according to the user's wishes is obtained by controlling an electronic expansion valve provided in the refrigerant circuit. FIG. 7 is a block diagram showing the overall system configuration, and FIG. 8 is a flow chart showing the operation.

In FIG. 7, 70 is a microcomputer constituting an electronic expansion valve control section, which includes a CPU 71 and an input circuit 72 connected thereto. It is composed of a memory 73 and an output circuit 74, and the input circuit 72 includes a temperature-sensitive resistance element 102 for detecting room temperature and an input switch 15 for expressing thermal sensation.
is connected to the air conditioning refrigerant circuit (not shown).
Temperature detector 75 that detects the temperature of the outdoor heat exchanger (functions as an evaporator during heating) that constitutes the. and temperature signals from a temperature detector 76 that detects the suction temperature of the compressor. Further, 77 is the output circuit 74
The electronic expansion valve drive circuit is controlled by an output signal from the electronic expansion valve drive circuit 77, and an electronic expansion valve 78 constituting a pressure reducing device for the refrigerant circuit is connected to the output side of the drive circuit 77. 79 is a power supply circuit for the drive circuit 77, which is connected to a commercial power source 80.

In the control system configured as described above, when the microcomputer starts operating, the control program shown in FIG. 8 starts. Accordingly, first, in step 81, the outdoor heat exchanger temperature T detected by the temperature detector 75 is determined. VO is taken into the CPU 71 through the input circuit 72. In the next step 82, the compressor suction temperature TI
N is detected by the detector 76 and taken into the CPU 71. Then, in the next step 83, the detected temperature TGV11+
The degree of superheat (superheat) 'c N of the refrigerant sucked into the compressor is determined based on the TIN, and in the next step 84, the degree of opening of the electronic expansion valve 78 is determined based on the superheat. That is, the opening degree L of the electronic expansion valve 78 (as 1 increases, the opening degree becomes larger and the flow rate increases) is controlled so that the superheat becomes constant, thereby stabilizing the refrigerant circuit. Further, in step 85, it is determined whether or not there is an input from the input switch 15, and when it is determined that there is a switch input, in the next step 86, whether or not there is an input from the "when it is cold" switch is determined.
Alternatively, it is determined whether the switch is input “when it is hot”. Here, if it is determined that the input is for the "when it is cold" switch, the process proceeds to step 87, and the opening degree of the electronic expansion valve 78 is increased to 1. (fixed value) and set L-LD as the opening degree. Then, in step 88, this opening degree command is outputted to the drive circuit 78 through the output circuit 74, thereby adjusting and controlling the opening degree of the electronic expansion valve 78 to LLo for a certain period of time.

As a result, the pressure (temperature) of the heat exchanger rises, which causes the temperature of the blown air to rise, making it possible to automatically shift the ambient temperature that confuses users into thinking it's "cold" to an environment temperature that matches the user's wishes. .

Further, FIG. 9 shows a fourth embodiment of the present invention in which a sense of comfort can be provided to the user by controlling the direction of the blown air direction adjusting plate (vane).

In the figure, reference numeral 90 denotes a microcomputer constituting the wind direction adjustment plate drive motor control section, which includes a CPU 91 and an input circuit 92 connected thereto. It is composed of a memory 93 and an output circuit 94, and the input circuit 92 is connected to a temperature-sensitive resistance element 102 for detecting room temperature and an input switch 15 for expressing thermal sensation. Further, 96 is a wind direction adjusting plate drive circuit controlled by an output signal from the output circuit 94, and a wind direction adjusting plate driving motor 97 is connected to this. 98 is a power supply circuit for the drive circuit 96;
9 is a commercial power supply.

In the air conditioner control system configured as described above, when the 'cold time' switch is input during heating, the drive circuit 96 is controlled by the signal sent from the microcomputer 90, and the motor 97 is activated. By driving, the direction of the wind direction adjustment plate is changed for a certain period of time so that the air blown out from the indoor heat exchanger is sucked into the suction side of the heat exchanger.This causes the temperature of the heat exchanger to rise. , the temperature of the blown air increases, and the ambient temperature that the user feels is "cold" can be automatically shifted to an environmental temperature that suits the user's wishes.

〔Effect of the invention〕

As described above, according to the present invention, the user's thermal sensation is manually controlled by a switch, and the environmental temperature is thereby automatically changed so that the user's thermal sensation of "cold" or "hot" is alleviated. This makes it easier to create a comfortable environment that suits the user's wishes.Moreover, when the user inputs a thermal sensation switch, the temperature of the blowing air is temporarily changed, making it easier for the user to feel comfortable. It has the effect of providing a stimulating sense of comfort.

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the air conditioner according to the present invention, FIG. 1 is a block diagram showing the overall system configuration, and FIG. 2 is a front view of the hot water cooling chamber. figure,
FIG. 3 is a flowchart showing the operating procedure, and FIG. 4 is a characteristic diagram of room temperature change during heating. 5 and 6 show a second embodiment of the air conditioner of the present invention, and FIG. 5 is an overall system block diagram,
FIG. 6 is a flowchart showing the operating procedure. 7 and 8 show a third embodiment of the air conditioner of the present invention, and FIG. 7 is an overall system block diagram,
FIG. 8 is a flowchart showing the operating procedure. FIG. 9 is an overall system block diagram showing a fourth embodiment of the air conditioner of the present invention, and FIG. 10 is a control block diagram of a conventional heat pump type air conditioner. 1 (+, 50.70.90...Microphone r+computer constituting the control unit, 15...Thermal sensing input cassette,
16... Indoor fan motor, 55... Compressor drive circuit, 56... Compressor drive motor, 77... Electronic expansion valve drive circuit, 78... Electronic expansion valve, 96... Wind direction adjustment Plate drive circuit, 97... Motor, 1.01... Operation switch, 102... Temperature sensitive resistance element for room temperature detection, 10
6... Compressor. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (5)

[Claims] (1) Temperature detection means for detecting room temperature, user's "hot"
, an input switch section for inputting a thermal sensation when feeling "cold"; a set temperature determining means for changing the indoor temperature setting according to the room temperature from the temperature detection means and the thermal sensation switch input from the input switch section; An air conditioner comprising: a control means for changing the temperature of the blown air for a certain period of time so that the thermal sensation is alleviated after the switch is turned on in accordance with the input of the thermal sensation switch by the input switch section. (2) The air conditioner according to claim 1, wherein the blowing air temperature change control means comprises means for changing and controlling the rotational speed of the indoor fan for a certain period of time. (3) The air conditioner according to claim 1, wherein the blowing air temperature change control means comprises means for changing and controlling the operating frequency of the compressor for a certain period of time. (4) The air according to claim 1, wherein the blowing air temperature change control means comprises means for changing and controlling the opening degree of an electronic expansion valve provided in the refrigerant circuit for a certain period of time. harmonizer. (5) Claims characterized in that the means for controlling the change in temperature of the blown air comprises means for controlling the direction of the wind direction adjustment plate to be changed for a certain period of time so that the blown air is sucked into the suction port as it is. The air conditioner according to paragraph 1.