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Air conditioner

A technology for air conditioners and indoor units, which can be used in air conditioning systems, mechanical equipment, space heating and ventilation, etc. It can solve problems such as unsanitary and abnormal odors, and achieve the effect of preventing condensation

Inactive Publication Date: 2007-02-21
SANYO ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned air conditioner with a ventilator in the conventional structure, dew condensation occurs on the indoor unit side during ventilation, and mildew occurs due to dew condensation, which is unsanitary.
In addition, because of this, there are also disadvantages such as the occurrence of strange odors and the like.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Next, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4 . For ease of understanding, in these figures contrast with the Figure 5 , Figure 6 Parts that have the same functions as those already described are given the same symbols.

[0052] As shown in FIG. 1 , an air conditioner 100 according to the first embodiment is composed of an indoor unit 10 installed indoors and an outdoor unit 30 installed outdoors. The indoor side indoor heat exchanger 11 installed in the indoor unit 10, The compressor 31 installed in the outdoor unit 30, the outdoor side heat exchanger 32, and the flow path switching valve 33 formed by a four-way valve are connected through the refrigerant pipe 3 arranged through the recess 2 provided on the outer wall 1 of the building, A refrigerant circulation path in which the flow path can be switched by the flow path switching valve 33 is formed.

[0053] Like the refrigerant pipe 3, the air exchange pipe 4 ...

Embodiment 2

[0072] A second exemplary embodiment of the invention will be described with reference to FIG. 2 . In the indoor unit 10 of the air conditioner 100 in the second embodiment, an air flow path switching damper 16 is provided, and the indoor temperature sensor 13 and the indoor humidity sensor 14 of the indoor unit 10 can not only measure the indoor temperature and humidity, The air supply fan 34 can also be started to measure the temperature and humidity of the outdoor air introduced by the ventilation duct 4 and the exhaust fan 12 . Therefore, a temperature sensor and a humidity sensor are not provided in the outdoor unit 30 .

[0073] That is to say, when the damper 16 is switched to the position shown by the solid line in Fig. 2, the indoor air flowing to the indoor side heat exchanger 11 flows to the indoor temperature sensor 13 and the indoor humidity sensor 14, and the indoor temperature sensor 13 and the indoor humidity The sensor 14 measures the temperature T1 and humid...

Embodiment 3

[0077] A third embodiment of the present invention will be described with reference to the drawings. In the outdoor unit 30 of the air conditioner 100 of the third embodiment, an inexpensive outdoor temperature sensor 35 is provided, but an expensive humidity sensor is not provided.

[0078] The humidity of the outdoor air is estimated based on the temperature T2 measured by the outdoor temperature sensor 35, and the dew point temperature Tc of the outdoor air is calculated based on the estimated humidity using a ventilation operation control program stored in a memory (not shown) of the control device 15. The dew point temperature Tc and the indoor air temperature T1 measured by the indoor temperature sensor 13 are such that the air introduced into the room from the outside does not flow through the indoor piping part 4A of the ventilation pipe 4 and the exhaust air during the cooling operation when the room temperature is lower than the outdoor air temperature. The inside of...

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PUM

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Abstract

Disclosed is an air conditioner to prevent occurrence of dew condensation on at least a side of an indoor machine even when performing ventilation operation. During operation when room temperature is lower than outside air temperature, a controller obtains dew point temperature Tc of outdoor air based on temperature T2 of outdoor air measured by an outdoor temperature sensor and humidity H2 of outdoor air measured by an outdoor humidity sensor and then compares the dew point temperature Tc with temperature T1 of indoor air measured by an indoor temperature sensor. When Tc>T1+[alpha] (wherein, [alpha]>0), an air supply fan cannot start even if an attempt to supply air is made. During operation when outside air temperature is lower than room temperature, the controller obtains dew point temperature Tc of indoor air based on temperature T1 of indoor air measured by an indoor temperature sensor and humidity H1 of indoor air measured by an indoor humidity sensor and compares the dew point temperature Tc with temperature T2 of outdoor air measured by the outdoor temperature sensor. The air supply fan cannot start even if an attempt to supply air is made when Tc>T2+[beta] (wherein, [beta]>0).

Description

technical field [0001] The present invention relates to an air conditioner equipped with a ventilation device. Background technique [0002] As this air conditioner, such as Figure 5 As shown, for example, the following air conditioners are known (for example, refer to Patent Document 1). An exhaust pipe 20 and an air supply pipe 21 are provided in the indoor unit 10, and through the rotation of a fan not shown in the ventilation unit 22, the indoor air is discharged to the outside by means of the exhaust pipe 20 and the passage 23, for example, Simultaneously, by the rotation of another fan (not shown), outdoor air is sucked into the room through the air supply pipe 21 and the passage 23, and the room is ventilated. [0003] In addition, the following air conditioners are also known (for example, refer to Patent Document 2). that is, Figure 6 As shown, the indoor unit 10 is provided with a ventilating fan 25, which uses the forward and reverse switching of the fan 26 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/053F24F1/00F24F7/00F24F11/00F24F11/02F24F11/76
CPCF24F11/0001F24F11/74F24F2110/10F24F2110/20F24F1/0035F24F1/0041
Inventor 中岛利光进士干泰
Owner SANYO ELECTRIC CO LTD