JP3097633B2 - Air conditioner temperature control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a so-called PMV
The present invention relates to a temperature control device for an air conditioner that obtains a comfortable indoor environment in consideration of an index.

[0002]

2. Description of the Related Art In an air conditioner, from the conventional concept of air conditioning that simply controls the temperature of a room to be air-conditioned to a predetermined temperature, comfort is emphasized by controlling the room temperature to make the indoor environment more comfortable. In order to respond to the changing needs of users for the concept of air conditioning, the so-called PMV
Attempts have been made to consider the index, and various temperature control techniques based on the PMV index have been proposed (see, for example, JP-A-2-17855 and JP-A-5-126380).

[0003] The PMV index is proposed as a measure of comfort in an indoor environment to be air-conditioned. The thermal sensation of a human is based on the air temperature, the average radiant temperature, the airflow temperature, the water vapor partial pressure, and the human. Assuming that the condition is governed by the six elements of the activity state and the clothing state, each of these elements is measured, and based on these, the comfort equation (ISO 77
30) is calculated as a numerical value, and from this calculated numerical value, the indoor environment is defined as “+3: hot”, “+2: warm”,
"+1: Slightly warm", "0: Neither", "-
1: Slightly cool "," -2: cool "and" -3: cold ". Things.

As a method for reflecting the idea of the PMV index in the temperature control of the air conditioner, for example, a room temperature at which an intermediate evaluation of “0: neither” is obtained is adopted as a target room temperature for the room temperature control. Generally, a method of controlling the operation of the air conditioner to maintain the room temperature at the target room temperature is adopted.

Here, as an example of the temperature control of an air conditioner in which a PMV index conventionally proposed is reflected in room temperature control, a temperature control method in an air conditioner for a general house will be described with reference to a flowchart shown in FIG. The brief description is as follows.

That is, with the start of operation by turning on the remote controller (step S1), the current indoor suction temperature (Tr) and the current outdoor temperature (Ta) are read (step S2), and the user (ie, the indoor occupant) is read. It is determined whether execution of air conditioning pursuing comfort, that is, execution of PMV control in consideration of the PMV index is desired (step S3).

If it is determined that PMV control is not desired, normal room temperature control for controlling room temperature to a set temperature set by the user is executed (step S4).

On the other hand, if it is determined that PMV control is desired to be executed, a control timer is started in step S5, and a target room temperature (Tms) is calculated in consideration of the PMV index. That is, first, step S
In 6, it is determined whether or not there is an environmental element (ColNo) as a basis for calculating the target room temperature (Tms). still,
This environmental element (ColNo) is an element based on the clothing state of the user. In this example, of the six environmental elements for calculating the PMV index described above, P is simulated only in the clothing state.
The MV index is calculated.

At the start of operation, environmental factors (Col
No) does not exist, and in step S8, the environmental factor (C) is obtained by fuzzy inference from the indoor suction temperature (Tr).
olNo) (at the time of the next and subsequent control, this environmental element (ColNo) is used as it is (step S
7)). Thereafter, in step S9, first, based on the outdoor temperature (Ta) and the environmental element (ColNo), a room temperature at which the user feels comfortable, that is, a target room temperature (Tms) is calculated, and the target room temperature (Tms) is calculated. Room temperature control is performed to maintain it. During the room temperature control based on the target room temperature (Tms), for example, if the user feels (hot) or (cold) and operates (hot switch) or (cold switch), the user receives this operation and receives Element (Co
1No) change control is executed by an interrupt process (step S11). The outdoor temperature (Ta) is also updated every 5 minutes (step S12). This environmental element (ColN
o) and the change in the outdoor temperature (Ta), the target room temperature (Tms) is changed, and the changed environmental element (ColNo) is stored and rewritten (step S10), and this is the next control. Sometimes reflected. That is,
During the room temperature control by the PMV control, the target room temperature (Tms) is sequentially learned according to a request of the user, and thereby, the indoor comfort is maintained.

[0010]

The sense of heat of a human being is unique to each person. Even if the room temperature is the same, one person feels (hot) and the other person (cool). You may feel it.

Therefore, the conventional temperature control as described above, that is, the target room temperature obtained based on the PMV index on the premise of human thermal sensation is successively learned and controlled according to the user's request, thereby improving the comfort of the indoor environment. When the control to be maintained is applied to room temperature control in an air conditioner for a general house in which the occupants are specified, it is considered that good comfort is ensured.

However, the above-described conventional room temperature control method based on learning control of a target room temperature is based on the assumption that the conventional room temperature control method is used under the condition that an unspecified number of people enter and leave the air conditioning environment. If applied directly to an air conditioner, the results of learning at the target room temperature will be reflected only to specific persons (for example, those who have evaluated the comfort underlying learning) due to individual differences in thermal sensation. It is also possible that comfort may be impaired for those with disabilities.

[0013] Accordingly, an object of the present invention is to provide a temperature control device in which good comfort can be obtained by considering a PMV index in room temperature control in an air conditioner intended for an unspecified number of people. It was done as.

[0014]

Means for Solving the Problems In the present invention, the following configuration is adopted as specific means for solving such problems.

According to a first aspect of the present invention, there is provided a temperature control device for an air conditioner for controlling a room temperature so as to make a room environment comfortable, wherein a target room temperature (Tm) is determined based on a human sense of heat. Determining means, user-required temperature determining means for determining a user-requested temperature (TV1) based on a user request, and a temperature deviation (A) between the target room temperature (Tm) and the user-requested temperature (TV1). And a final target temperature determining means for determining a final target temperature (Tms) based on a temperature deviation (A) between the target room temperature (Tm) and the user required temperature (TV1). The control is performed based on the final target temperature (Tms).

According to a second aspect of the present invention, in the temperature control apparatus for an air conditioner according to the first aspect, the final target temperature determining means is provided so that the target room temperature (Tm) is the user required temperature (TV1). When the temperature falls within a predetermined temperature deviation range (A), the target room temperature (Tm) is set as a final target temperature (Tms), and the target room temperature (Tm) is a predetermined value with respect to the user request temperature (TV1). If the temperature is higher than the temperature deviation (A) of the
1) is corrected by adding the temperature deviation (A) to the final target temperature (Tms). The target room temperature (Tm) is a predetermined temperature deviation (A) with respect to the user request temperature (TV1). When the temperature is lower than the temperature, the temperature deviation (A) is subtracted and corrected from the user required temperature (TV1), and the corrected temperature deviation is used as the final target temperature (Tms).

In the third invention of the present application, the first or the second
In the temperature control device for an air conditioner according to the invention, after the setting of the final target temperature (Tms), a determination means for determining whether or not the user request temperature (TV1) is changed is provided. When (TV1) is changed, the final target temperature (Tms) is corrected according to the difference between the user's required temperature (TV1) before the change and the user's required temperature (TV1) after the change. Features.

[0018]

According to the present invention, the following effects can be obtained by adopting such a configuration.

According to the temperature control device for an air conditioner according to the first invention of the present application, the final target temperature (Tms) serving as a reference for controlling the room temperature is determined based on the human sense of heat. Tm) is set within a predetermined temperature range corresponding to the temperature deviation (A) between the user request temperature (TV1) and the final target temperature (Tms) is set by the user who set the user request temperature (TV1). The meaning of the room temperature is the least common denominator of the thermal sensation of the unspecified number of people, and even if it is a business-use air conditioner intended for the unspecified number of people, It is possible to realize an indoor environment in which a large number of people feel (comfortable).

According to the temperature control device for an air conditioner according to the second invention of the present application, the final target temperature (Tms)
When the target room temperature (Tm) is set to a predetermined temperature deviation range (A) with respect to the user request temperature (TV1).
When the temperature is within the range, the target room temperature (Tm) is set as a final target temperature (Tms), and the target room temperature (Tm) is higher than a predetermined temperature deviation (A) with respect to the user request temperature (TV1). In this case, the temperature deviation (A) is added and corrected to the user required temperature (TV1) to obtain the final target temperature (Tms), and the target room temperature (Tm) becomes the user required temperature (TV1). On the other hand, when the temperature is lower than the predetermined temperature deviation (A), the user request temperature (TV)
By subtracting and correcting the temperature deviation (A) from 1) to obtain the final target temperature (Tms), the final target temperature (Tms) is always the temperature deviation centered on the target room temperature (Tm). (A) is set within the range, the adaptability of the final target temperature (Tms) to the thermal sensation of an unspecified number of people is increased, and the maintenance of the comfort of the air-conditioning environment is further ensured.

According to the temperature control device for an air conditioner according to the third invention of the present application, the following specific effects can be obtained in addition to the effects described above or above. That is, in the present invention, after the setting of the final target temperature (Tms), there is provided a judging means for judging whether or not the user request temperature (TV1) is changed, and the user request temperature (TV) is provided.
When 1) is changed, the above final target temperature (Tms)
Is corrected in accordance with the difference between the user request temperature (TV1) before the change and the user request temperature (TV1) after the change, for example, the user request temperature (TV1) set first. Target temperature (Tm) determined based on
If there is a person who does not feel "comfortable" in the air-conditioning operation in s), and the user changes the user request temperature from the first user request temperature (TV1) to the user request temperature (TV2), The target temperature (Tms) is corrected based on the difference between the user-requested temperatures (TV1) and (TV2). Therefore, the correction of the final target temperature (Tms) enhances the suitability of the final target temperature (Tms), further improves the comfort of the air-conditioning environment, and prevents excessive cooling or overheating. Thus, energy saving in air-conditioning operation is also realized.

[0022]

FIG. 1 shows the configuration of a temperature control device Z for an air conditioner according to the present invention. The temperature control device Z according to this embodiment is provided in a commercial air conditioner that assumes an unspecified person as a user of the air conditioner, and performs air conditioning for the unspecified person. By taking into account the PMV index, which is a measure of comfort in an indoor environment, comfort is maintained, and energy saving is also realized.

First, the configuration of the temperature control device Z according to this embodiment will be described with reference to FIG.

The temperature control device Z controls the operation of a refrigerant circuit system 6 of an air conditioner provided with devices such as a compressor 7 and an electric valve 8. The outdoor temperature sensor 1 detects an outdoor temperature. And a room temperature sensor 2 for detecting a room temperature (room suction temperature), a remote controller 3 having a temperature display function, an arithmetic circuit 4 and a controller 5.

The arithmetic circuit 4 receives the current outdoor temperature and the current indoor suction temperature from the outdoor temperature sensor 1 and the indoor temperature sensor 2, respectively, and receives the user's required temperature from the remote controller 3. Also, this remote control 3
Then, the user requested temperature is displayed.

The arithmetic circuit 4 receives the outdoor temperature, the indoor temperature, and the user's required temperature, determines the target room temperature in consideration of the PMV index, and based on a comparison between the target room temperature and the user's required temperature. To calculate the final target temperature, which is a reference for the comfortable control,
To control the operation of the refrigerant circuit system 6. Less than,
The actual control in the arithmetic circuit 4, which is the gist of the present invention, will be described based on the flowchart shown in FIG.

When the air-conditioning operation is started by turning on the remote controller 3 (step S1), first, in step S2, the current outdoor temperature (Ta) and indoor suction temperature (Tr) are respectively determined by the outdoor temperature sensor 1 and the indoor temperature. In addition to reading from the sensor 2, in step S3, the user
It is determined whether a request for MV control has been issued.

If there is no request for PMV control, normal room temperature control, that is, control for maintaining the room temperature at a predetermined set temperature, is executed (step S4).

On the other hand, if it is determined that a request for PMV control has been made, the process proceeds to room temperature control by PMV control. That is, first, in step S5, the target room temperature (Tm) to be the target of the comfort control is determined using the indoor suction temperature (Tr) and the outdoor temperature (Ta) as environmental factors, and in step S6, the remote control display temperature, that is, The user-requested temperature (TV1) is read. In calculating the target room temperature (Tm), the outdoor temperature (Ta) and the outdoor temperature (Tr) are pseudo-determined as environmental elements as in this embodiment. It can also be determined by considering all of the elements.

Next, in step S7, it is determined whether or not the final target temperature (Tms) to be finally set as the target of the comfort control is set. At the first control timing, the final target temperature (Tms) is determined. Since is not set, the process moves to step S8.

In step S8, the target room temperature (Tms) is determined before the final target temperature (Tms) is determined.
m) is compared with the user-requested temperature (TV1) to see the temperature deviation (A). That is, the relationship between these two is
Is “Tm ≧ TV1 ± A ° C.” or “Tm ≦ TV1 ± A”
° C ”. Here, “Tm ≦ TV1 ±
A.degree. C. ", that is, the target room temperature (Tm) is A.degree. C. on the high temperature side and the low temperature side around the user required temperature (TV1) (corresponding to" temperature deviation A "in the claims). If it is determined that the temperature deviation between the target room temperature (Tm) and the user's required temperature (TV1) is within an allowable range for securing comfort, The room temperature (Tm) is determined as it is as the final target temperature (Tms) (step S10).

On the other hand, when “Tm ≧ TV1 ± A ° C.”, that is, when the target room temperature (Tm) is higher than the user-required temperature (TV1),
If the temperature deviation between the target room temperature (Tm) and the user's required temperature (TV1) is considered to be outside the allowable range for securing comfort outside the range of ° C. The process proceeds to S9, and the final target temperature (Tms) is determined in consideration of the temperature deviation between the target room temperature (Tm) and the user required temperature (TV1). That is, in step S9, when the relationship between the target room temperature (Tm) and the user required temperature (TV1) is “Tm ≧ TV1 + A ° C.” (that is, the target room temperature (Tm) is the user required temperature (TV1)). A ℃ than
(Tm ≦ TV1−A ° C.) (that is, the target room temperature (Tm) is at least A ° C. lower than the user required temperature (TV1)). In the former case, the final target temperature (Tms) is set to "Tms
= TV1 + A ° C ”, and in the latter case, the final target temperature (Tms) is determined as“ Tms = TV1-A ° C ”.
That is, the target room temperature (T) determined based on the PMV index
m) is not simply determined as the final target temperature (Tms) as it is, but is determined in consideration of the user's request (that is, the user required temperature (TV1)) in determining the final target temperature (Tms). The compatibility of the final target temperature (Tms) with an unspecified number of people is ensured.

When the final target temperature (Tms) is determined, next, at step S11, the current user request temperature (TV2) is read. And step S
At 12, the first user required temperature (TV1) is compared with the current user required temperature (TV2). Here, if the remote controller 3 is not operated again, "TV1 = TV
In this case, the final target temperature (Tms) determined in step S9 is used as it is as the final target temperature. On the other hand, if the remote controller 3 is operated again and there is a difference between the initial user request temperature (TV1) and the current user request temperature (TV2),
The final target temperature (Tms) is adjusted based on this difference and is adopted as a new final target temperature (Tms) (step S13). That is, the degree of dissatisfaction with the user's comfort is reflected in the determination of the final target temperature (Tms).

By performing the air-conditioning operation on the basis of the final target temperature (Tms) determined in this way, even if the air conditioner is a business-use air conditioner intended for an unspecified number of people, the air-conditioning operation can be performed. Since the final target temperature (Tms) is highly adaptable to an unspecified majority, an air-conditioning environment with excellent comfort such that the majority of the unspecified majority feels comfortable can be obtained.

In the control for changing the final target temperature (Tms) in steps S12 to S14, the remote controller is operated again after the first remote controller operation, and the display temperature of the remote controller, ie, the user request temperature is set first. This is executed when the temperature (TV1) is changed to the temperature (TV2). Therefore, until the remote controller is operated again, the final target temperature (Tms) obtained in step S9 is used as a reference. Is performed (step S9 → step S11 → step S12 → step S14).

[Brief description of the drawings]

FIG. 1 is a control block diagram of a temperature control device for an air conditioner according to the present invention.

FIG. 2 is a control flowchart of the temperature control device.

FIG. 3 is a control flowchart in a conventional temperature control device for an air conditioner.

[Explanation of symbols]

1 is an outdoor temperature sensor, 2 is an indoor temperature sensor, 3 is a remote controller, 4 is an arithmetic circuit, 5 is a controller, 6 is a refrigerant circuit system, 7 is a compressor, and 8 is an electric valve.

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Masafumi Kuroishi 1304 Kanaokacho, Sakai City, Osaka Prefecture Daikin Industries, Ltd. Sakai Works Kanaoka Factory (56) References JP-A-7-63393 (JP, A) JP Hei 6-323596 (JP, A) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F24F 11/02

Claims (3)

(57) [Claims] 1. A temperature control device for an air conditioner for controlling an indoor temperature to make an indoor environment a comfortable state, comprising: a target room temperature determining means for determining a target room temperature (Tm) based on a human thermal sensation; A user request temperature determining means for determining a user request temperature (TV1) based on a user request; the target room temperature (Tm) and the user request temperature (TV1)
Final temperature determining means for determining a final target temperature (Tms) based on a temperature deviation (A) between the target room temperature (Tm) and the user required temperature (TV1). A temperature control device for an air conditioner, comprising: controlling a room temperature based on the final target temperature (Tms). 2. The method according to claim 1, wherein the final target temperature determining means is configured such that the target room temperature (Tm) is the user required temperature (TV1).
When the temperature is within a predetermined temperature deviation range (A), the target room temperature (Tm) is set as a final target temperature (Tms), and the target room temperature (Tm) is the user request temperature (TV1).
If the temperature is higher than the predetermined temperature deviation (A), the temperature deviation (A) is added to the user required temperature (TV1) and corrected, and this is corrected to the final target temperature (Tm).
s) and the target room temperature (Tm) is equal to the user required temperature (TV1).
If the temperature is lower than the predetermined temperature deviation (A), the temperature deviation (A) is corrected by subtracting the temperature deviation (A) from the user request temperature (TV1), and this is corrected to the final target temperature (Tm).
s) A temperature control device for an air conditioner, characterized in that: 3. The method according to claim 1, further comprising: a determination unit configured to determine whether or not the user request temperature (TV1) has changed after the setting of the final target temperature (Tms). ) Is changed, the final target temperature (Tms) is corrected according to the difference between the user's required temperature (TV1) before the change and the user's required temperature (TV1) after the change. Temperature control device of the harmonic machine.