JP2720560B2 - Air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an air conditioner that performs comfortable temperature control during sleep.

2. Description of the Related Art Conventionally, various schemes and control devices have been devised to improve comfort during sleep. More specifically, temperature shift control based on the elapsed time, blowing air volume limitation, and the like are performed. An example of this conventional control during cooling sleep will be described below. Illustration is omitted. When entering the bed, the sleep switch of the air conditioner is depressed, the air flow is reduced while the cooling operation is continued, and then the room temperature is gradually increased with time.

Problems to be Solved by the Invention However, in the above conventional example, since the temperature is shifted based on the user's room temperature setting, the room temperature setting deviates from a comfortable range depending on the initial room temperature setting, resulting in awakening during sleep. Had the problem of doing so. This will be described with reference to FIG. FIG. 5 is a schematic diagram of a comfortable sleep temperature range in general summer and winter. First, in summer, the comfortable temperature range is around 26 ° C. During summer comfortable sleeping area, but individual differences exist in the lower limit temperature, the upper limit temperature T ₁ of the case almost lead to awakening in the air conditioning operation with no more temperature setting at a constant value is large. Next, in winter, the comfortable temperature range is around 15 ° C due to the effects of bedding. In the winter comfortable sleep range, there is an individual difference in the upper limit temperature, but the lower limit temperature T ₁ ′ is a substantially constant value, and in many cases, the air conditioner operation at a temperature setting lower than this value results in awakening. On the other hand, the commonly used set temperature is 16 ℃ ~ 30 ℃
Since there is a temperature change of about + 2 ° C. in the amount of temperature shift during cooling and about -5 ° C. in the amount of temperature shift during heating, depending on the set temperature before the user goes to bed, the respective set temperatures are as shown in FIG. May reach the awakening zone. In view of the above problems, the present invention inherits a comfortable and economical set temperature shift as it is, and at the same time, automatically sets the set temperature shift in the awake zone without imposing inconvenience such as limitation on the user. The purpose is to prevent.

Means for Solving the Problems To achieve the above object, an air conditioner of the present invention is provided.
An indoor unit having a built-in indoor heat exchanger and indoor air blowing means, a room temperature detecting means for detecting the indoor temperature, a room temperature setting means for setting the indoor temperature, a good night switch operated at bedtime, and an ON signal of the good night switch Temperature shift means for measuring the elapsed time and sequentially shifting the room temperature setting in accordance with the elapsed time, and the temperature setting set by the room temperature setting means and the temperature shift means by the ON signal of the sleep switch. During cooling, it is limited to the upper limit temperature of the comfortable sleep temperature of humans, and during heating, it is limited to the range equal to or higher than the lower limit temperature of the comfortable sleep temperature, and the indoor heat exchanger and the Control means for controlling the operation of the indoor blowing means is provided.

Function With the above configuration, the air conditioner of the present invention can always create a comfortable sleep environment by limiting the room temperature setting after the temperature shift of the indoor unit from going to bed to a range that does not lead to awakening. is there.

Embodiment Hereinafter, an air conditioner of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an indoor unit of an air conditioner showing one embodiment of the present invention. In FIG. 1, 2
Is an indoor heat exchanger, and 3 is an indoor blowing means, which constitutes the indoor unit 1. 4 is a room temperature detecting means for detecting the room temperature, 5 is a room temperature setting means for setting the room temperature, 6 is a good night switch operated at bedtime, and 7 is a room temperature setting by measuring an elapsed time from an ON signal of the good night switch 6. A temperature shift means 8 which sequentially shifts according to the elapsed time is a control means. The control means 8 detects the indoor heat exchanger 2 and the indoor blower means 3 by the room temperature detecting means 4 by an ON signal of the sleep switch 6. The room temperature and the room temperature setting set by the room temperature detecting means 5 and the temperature shifting means 7 are set to be equal to or lower than the upper limit temperature of the comfortable sleeping temperature of the human at the time of cooling.
At the time of heating, an instruction for driving operation is issued based on a difference from a limited set temperature that is limited to a range equal to or higher than the lower limit temperature of the comfortable sleep temperature. Next, the operation will be described in detail with reference to FIG. FIG. 2 shows an example of a control flowchart of the control means 8 during sleep according to the present embodiment. First, set the set temperature T _s by room temperature setting means 5 (Step 1
1) The room temperature T is detected by the room temperature detecting means 4 (step 12). Then, if you do not operate the night switch 6 at step 13, performs cooling and heating operations, such as ON / OFF of the known example compressor conventionally based on the set temperature T _s and the room temperature T. When working with good night switch 6 at bedtime measures the elapsed time by the temperature shifting means 7 (step 14), calculates the temperature shift amount △ T in accordance with the time (step 15), the temperature at the set temperature T _s The shift amount ΔT is added and changed (step 16). Then, set the limit temperature T _l indicating the arousal area (step 17), compared with the set temperature T _s which is a temperature shift (step 18), if it is not appropriate That comfortable sleeping outside in step 19, set setting the limit temperature T _l a temperature T _s (step 20). If appropriate using without touching the set temperature after the temperature shift, then likewise performs cooling and heating operations, such as ON / OFF of the known example compressor conventionally based on the set temperature T _s and the room temperature T (Step 21). As described above, at the time of sleep, the room temperature setting of the indoor unit after the temperature shift is limited to a range that does not lead to awakening. Next, the movement of the temperature shift during cooling sleep according to the present embodiment will be described with reference to FIGS. 3 and 4. FIG.
3 and 4 show timing charts of the indoor temperature and the set temperature during sleep according to the present embodiment. Figure 3 shows the case where the setting temperature T _s is a comfortable sleeping region i.e. limit temperature T ₁ of less after the temperature shift, the elapsed time after the bedtime (t ₁ and in the third diagram
A temperature shift (indicated by ΔT ₁ and ΔT ₂ in FIG. 3) is performed every time (indicated by t ₂ ). Figure 4 shows a case where the setting temperature T _s is a comfortable sleeping outside That limit temperatures T ₁ or more after the temperature shift,
Set temperature T _s temperature shift △ T ₂ after a lapse of time after bedtime t ₂ is not performed are the limiting temperature T _l. In addition, although detailed description is omitted for the time of heating, the temperature shift becomes more negative than plus, and the limited temperature _{Tl is set} to the limited temperature _T'l , and the appropriate judgment is made as described above. This enables temperature control during sleep.

Advantageous Effects of the Invention As described above, the present invention can always provide a comfortable sleeping environment by limiting the room temperature setting after the temperature shift of the indoor unit from bedtime to a range that does not lead to awakening, and at the same time, This has a useful effect of preventing the set temperature shift from being automatically performed in the awake area without imposing inconvenience such as restriction on the user.

[Brief description of the drawings]

FIG. 1 is a block diagram of an indoor unit of an air conditioner showing one embodiment of the present invention, FIG. 2 is a control flowchart of a control means during sleep of this embodiment, and FIGS. FIG. 5 is a timing chart of a room temperature and a set temperature during sleep according to an example, and FIG. 5 is a schematic diagram of a comfortable sleep temperature range in general summer and winter. 1 ... indoor unit, 2 ... indoor heat exchanger, 3 ... indoor blowing means, 4 ... room temperature detecting means, 5 ... room temperature setting means,
6 ... Good night switch, 7 ... Temperature shift means, 8 ...
... Control means.

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mariko Kawakatsu 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-2-57847 (JP, A)

Claims (1)

(57) [Claims] An indoor unit having a built-in indoor heat exchanger and indoor air blowing means; a room temperature detecting means for detecting an indoor temperature; a room temperature setting means for setting an indoor temperature; Temperature shift means for measuring the elapsed time from the ON signal of the sleep switch and sequentially shifting the room temperature setting in accordance with the elapsed time; and setting the room temperature setting means and the temperature shift means by the ON signal of the sleep switch. The temperature setting to be performed is limited to a range equal to or lower than the upper limit temperature of the human comfortable sleep temperature during cooling, and is set to a range equal to or higher than the lower limit temperature of the comfortable sleep temperature during heating. An air conditioner provided with control means for controlling the operation of an indoor heat exchanger and indoor blowing means.