JPH0732441U - Outside temperature compensation type air conditioner - Google Patents

Abstract

(57) [Summary] [Object] The present invention is provided with a radiation temperature sensor 3 for indirectly measuring not only room temperature but also ambient temperature, and the ambient temperature measured by the radiation temperature sensor 3 is used for the microcomputer. By inputting in 4, the air conditioning condition is changed according to the difference in outside temperature even if the room temperature is the same, and it is an object to obtain an outside temperature compensation type air conditioner capable of comfortable air conditioning even if the sunshine condition is different. The outside air temperature compensation type air conditioner of the present invention indirectly measures the outside temperature by setting the indoor temperature setting device 1, the temperature sensor 2 for measuring the room temperature, and the non-contact measurement of the surface temperature of windows and walls. The radiant temperature sensor 3 for measuring the air temperature and the microcomputer 4 for controlling the air conditioning capacity of the air conditioner according to the data input from the radiant temperature sensor 3 are provided. 4 to correct the set temperature and control the operating state of the blower of the air conditioner.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outside air temperature compensation type air conditioner that controls the operating state of a blower in consideration of the outside air temperature in addition to the temperature difference between the set temperature and room temperature.

[0002]

[Prior art]

 FIG. 5 shows a circuit block diagram of a conventional air conditioner. This air conditioner includes a desired room temperature setting device 1, a temperature sensor 2 for measuring room temperature, and the room temperature setting. The temperature is set by the device 1 and the room temperature measured by the temperature sensor 2 is input to the microcomputer 4, which is set by the setting device 1 and the temperature sensor 2. The cooling / heating capacity of the air conditioner is controlled by controlling the rotation speed of the blower fan 9 provided in the fan coil 7 according to the measured difference in room temperature. That is, an analog voltage value is output by the D / A conversion circuit 8 based on the output data from the microcomputer 4 and this signal is input to the fan rotation speed switching circuit 10, and the rotation speed of the blower fan 9 is set to, for example, high or medium.・ It can be switched to weak. Reference numeral 11 is a power supply circuit common to the fan coil 7 and the remote controller 5.

[0003]

[Problems to be solved by the device]

 However, in such a conventional air conditioner, the set temperature set by the room temperature setting device 1 and the room temperature measured by the temperature sensor 2 are input to the micro computer 4, and the set device is set. The rotation speed of the blower fan 9 of the fan coil 7 is controlled according to the difference between the set temperature set by 1 and the room temperature measured by the temperature sensor 2, and the outside air temperature is not included in the control conditions. On days when the sun is strong and hot, and when it is cloudy and there is no sunlight, it is possible to set the operating speed of the blower fan 9 to high, medium, or low just by how much the current room temperature is relative to the set temperature. As described above, the air conditioning capacity was adjusted by appropriately switching. In addition, since the air-conditioning capacity was controlled in the same way in the room facing south where the sun was relatively hot and the room facing north where the sun was weak, the temperature felt that people were actually hot or cold and the temperature was uncomfortable. Air conditioning was often used.

Therefore, in the present invention, a radiation temperature sensor 3 for indirectly measuring not only the room temperature but also the outside temperature is provided, and the outside temperature measured by the radiation temperature sensor 3 is input to the micro computer 4. By doing so, the objective is to obtain an outside air temperature-compensating air conditioner that can change the air conditioning conditions depending on the outside air temperature even if the room temperature is the same, and can perform comfortable air conditioning even if the sunlight conditions are different.

[0005]

[Means for Solving the Problems]

 The ambient temperature compensation type air conditioner according to the present invention indirectly detects the ambient temperature by the radiant temperature sensor 3, and the microcomputer 4 controls the preset temperature set by the setting device 1 by the radiant heat amount of the ambient temperature. A comfortable environment is provided by controlling the rotation speed of the blower fan 9 of the air conditioner according to the temperature difference between the corrected set temperature and the room temperature measured by the temperature sensor 2 to increase or decrease the air conditioning capacity. It is the one that enables the optimum air conditioning control that brings about. That is, the indoor temperature setting device 1, the temperature sensor 2 for measuring the room temperature, the radiation temperature sensor 3 for indirectly measuring the outside air temperature by non-contactly measuring the surface temperature of windows and walls, and the It is equipped with a micro computer 4 that controls the air conditioning capacity of the air conditioner according to the input data. The outside temperature detected by the radiation temperature sensor 3 is processed by the microcomputer 4 to correct the set temperature, The air conditioner-compensated air conditioner is characterized by controlling the operating condition of the blower of the air conditioner.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 and 3 show an embodiment in which the outside air temperature compensating air conditioner of the present invention is applied to a fan coil, 5 is a remote controller, and this remote controller 5 has a circuit block diagram as shown in FIG. Indoor temperature setting device 1, temperature sensor 2 for measuring the room temperature, radiation temperature sensor 3 for measuring the outside air temperature, microcomputer 4, and D for outputting an analog voltage value based on the output data from the microcomputer 4 The A / A conversion circuit 8 is housed, and the radiation temperature sensor 3 for measuring the outside air temperature is directed toward the window 10 as shown in FIG. 1, and the surface temperature of the window 10 is measured without contact. By doing so, the outside temperature is indirectly measured. According to the experiment, the output voltage V of the radiation temperature sensor 3 to be captured as the actual outside air temperature and the surface temperature of the window measured by the radiation temperature sensor 3 changes in the same manner as shown in FIG. Therefore, it is understood that the value of the output voltage V measured by the radiation temperature sensor 3 can be indirectly treated as the outside air temperature of the window.

Reference numeral 6 denotes a control unit built in the fan coil main body 7. In this control unit 6, as shown in FIG. 3, the fan rotation speed switching circuit 10, the fan coil 7 and the remote control unit 5 are common. A power supply circuit is built in, and the control unit 6 is housed in the fan coil 7 together with the blower fan 9.

Further, the control section 6 supplies a DC power to the remote control section 5 by a power supply circuit 11, and a DC power supply line and a ground line for supplying the power and an output signal line for the analog voltage are provided. The analog voltage output signal is input to, and the low voltage, the medium speed, and the high speed operation of the blower fan 9 of the fan coil are switched by this voltage value.

[0009]

[Action]

 In the outside air temperature compensation type air conditioner thus constructed, the compensation value is determined by the microcomputer 4 based on the outside air temperature measured by the radiation temperature sensor 3 as shown in the flowchart of FIG. That is, in step 20, the set temperature set by the room temperature setting device 1 is input, in step 21, the room temperature measured by the temperature sensor 2, and in step 22, the radiation temperature sensor 3 is measured. Enter the outside temperature (Tg). In the set temperature compensation routine of step 23, it is apparently used to actually control the operating condition of the blower based on the set temperature input in step 21 and the outside air temperature (Tg) input in step 22. Determine the set temperature of. The flowchart describes the operation in the case of warming up, and the value of the outside air temperature (Tg) input in step 22 is: Tg ≤ 5 ° C, 5 ° C ≤ Tg ≤ 10 ° C, 10 ° C ≤ Tg ≤ 15 ° C, 15 The compensation value is added to or subtracted from the set temperature depending on each case of ℃ ≤ Tg ≤ 20 ℃ and Tg ≥ 20 ℃. As an example in relation to Table-1, for example, when the set temperature set by the indoor temperature setting device 1 is 24 ° C and the outside air temperature (Tg) is 7 ° C (* in Table-1 1) Since 5 ° C. ≦ Tg = 7 ° C. ≦ 10 ° C., the set temperature is incremented by 1 in step 31 of the flowchart to compensate from 24 ° C. to 25 ° C. (* 2 in Table-1), apparently , The set temperature has been raised.

Therefore, as shown in Table 1, when the outside temperature is high, the set temperature is apparently lowered by the compensation value, and when the outside temperature is low, the set temperature is apparently raised by the compensation value. Then, the rotation speed of the fan is calculated and determined in step 24 in comparison with the room temperature measured by the temperature sensor 2, and in step 25, the analog voltage corresponding to that is output to the D / A conversion circuit 8. The fan rotation speed switching circuit 10 operates so as to switch the rotation speed of the fan to low speed, medium speed, or high speed according to the output voltage of the D / A conversion circuit 8. By doing this, when the outside air temperature is high, the rotation speed of the blower fan 9 is increased so that the outside air temperature can be cooled faster, and when the outside air temperature is low, the blower fan 9 can be heated more quickly when the outside air temperature is low. Will increase the number of rotations.

[0011]

[Table 1]

[0012]

[Effect of device]

 As described above, according to the present invention, the radiant temperature sensor 3 that indirectly measures not only the room temperature but also the outside temperature is provided, and the air conditioner is controlled according to not only the difference between the room temperature and the set temperature but also the outside temperature. Since the air conditioning conditions are corrected and controlled, even if the set room temperature is the same, the cooling capacity is better on a day when the sun is relatively strong and feels hotter than when it is cloudy and there is no sunshine and it feels cool. (Fan speed) can be increased, which allows comfortable air conditioning closer to the temperature actually felt by the person, and its practical effect is great.

[Brief description of drawings]

FIG. 1 is a diagram of an application example of an outside air temperature compensation type air conditioner according to the present invention to a fan coil.

FIG. 2 is an actual outside air temperature and an output voltage V by the radiation temperature sensor 3 when it is attempted to capture it as a window surface temperature.
The graph which measured the relationship of.

FIG. 3 is a circuit block diagram of the air conditioner of the present invention.

FIG. 4 is a flowchart.

FIG. 5 is a circuit block diagram of a conventional air conditioner.

[Explanation of symbols]

1 Setting device. 2 Temperature sensor. 3 Radiation temperature sensor. 4 Microcomputer. 5 Remote control section. 6 Control unit. 7 Fan coil body. 8 D /
A conversion circuit. 9 Blower fan. 10 Fan rotation speed switching circuit. 11 Power circuit. 12 windows.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Kawakami 100 Kutoku-cho, Ogaki-shi, Gifu Prefecture, Pacific Industries Co., Ltd. (72) Takashi Numanami 100 Kutoku-cho, Ogaki-shi, Gifu, Ltd.

Claims (1)

[Scope of utility model registration request] 1. An indoor temperature setting device 1, a temperature sensor 2 for measuring a room temperature, and a radiation temperature sensor 3 for indirectly measuring an outside air temperature by measuring a surface temperature of a window or a wall in a non-contact manner. The microcomputer 4 is provided with a microcomputer 4 for controlling the air conditioning capacity of the air conditioner according to the data input from these, and the outside temperature detected by the radiation temperature sensor 3 is processed by the microcomputer 4 to correct the set temperature. An outside air temperature compensating type air conditioner, characterized in that a corrected set temperature is compared with the room temperature to control an operating state of a blower of the air conditioner.