Method and device for saving energy in indoor cooling and heating

• US 6,843,063 B2
• Filed: 06/08/2000
• Issued: 01/18/2005
• Est. Priority Date: 06/08/2000
• Status: Expired due to Fees

• Current Assignee: Kazuo Miwa
• Original Assignee: Kazuo Miwa
• Inventors: Miwa, Kazuo
• Primary Examiner(s): Tapolcai, William E.
• Application Number:
  US10/297,677
• Publication Number:
  US 20040020222A1
• Time in Patent Office: 1,685 Days
• Field of Search: 62/89, 622/62, 454/231
• US Class Current: 62/89
• CPC Class Codes: F24F 11/65 for selecting an operating mode
• CPC Class Codes: F24F 12/00 Use of energy recovery systems in air conditioning, ventilation or screening with both heat and humidity transfer between supplied and exhausted air F24F3/147
• CPC Class Codes: F24F 7/065 fan combined with single duct; mounting arrangements of a fan in a duct

Abstract

Energy saving in indoor air conditioning is achieved by combining indoor air vertical convection producing means and indoor air conditioning means. A fan for performing suction and exhaust of air for vertically circulating the indoor air through suction and exhaust ports provided on upper and lower parts of a room is operated or stopped according to a difference in temperatures detected on the upper and lower parts of the room. The output of the fan at the time of operation is increased or decreased according thereto to prevent energy loss occurring when warm air accumulates on the upper part and cool air accumulates on the lower part. The operation or suspension of an air conditioner installed indoors, and the amount of energy consumed at the time of operating the air conditioner is controlled depending on a difference between a temperature detected in the room and a preset indoor temperature.

Claims

1. An energy saving method in indoor air conditioning, said method comprising:

vertically circulating indoor air by sucking or exhausting air from the upper and lower parts of a room depending on a temperature difference between the upper temperature and the lower temperature in the room; and

operating or stopping an air conditioner equipped in the room depending on a temperature difference between the indoor temperature and a predetermined set indoor temperature;

wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is increased or decreased based on the size of a difference between a detected temperature difference between the upper and lower parts of the room and a set temperature difference, and the energy quantity used in said operating the air conditioner is increased or decreased based on the size of a difference between the detected indoor temperature and the predetermined set indoor temperature.

2. An energy saving method in indoor air conditioning according to claim 1, wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out at a plurality of suction or exhaust points on the upper and lower parts of the room, detection of temperatures on the upper and lower parts of the room is carried out at the plurality of suction or exhaust points of the air, and an increase or decrease in a suction rate or exhaust rate of the air is carried out at the respective points where said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out.

3. An energy saving method in indoor air conditioning, said method comprising:

vertically circulating indoor air by sucking or exhausting air from the upper and lower parts of a room depending on a temperature difference between the upper temperature and the lower temperature in the room; and

operating or stopping an air conditioner equipped in the room depending on a temperature difference between the indoor temperature and a predetermined set indoor temperature;

wherein the upper temperature in the room is detected at one or a plurality of points near the ceiling, and the lower temperature in the room is detected at one or a plurality of points near the floor; and

wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is increased or decreased based on the size of a difference between a detected temperature difference between the upper and lower parts of the room and a set temperature difference, and the energy quantity used in said operating the air conditioner is increased or decreased based on the size of a difference between the detected indoor temperature and the predetermined set indoor temperature.

4. An energy saving method in indoor air conditioning according to claim 3, wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out at a plurality of suction or exhaust points on the upper and lower parts of the room, detection of temperatures on the upper and lower parts of the room is carried out at the plurality of suction or exhaust points of the air, and an increase or decrease of a suction rate or exhaust rate of the air is carried out at the respective points where said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out.

5. An energy saving method in indoor air conditioning, said method comprising:

detecting an upper temperature and a lower temperature from the upper and lower parts of a room, respectively;

vertically circulating indoor air by sucking or exhausting air from the upper and lower parts of the room depending on a temperature difference between the detected upper temperature and the detected lower temperature in the room; and

operating or stopping an air conditioner equipped in the room depending on a temperature difference between the indoor temperature and a predetermined set indoor temperature;

wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is increased or decreased based on the size of a difference between a detected temperature difference between the upper and lower parts of the room and a set temperature difference, and the energy quantity used in said operating the air conditioner is increased or decreased based on the size of a difference between the detected indoor temperature and the predetermined set indoor temperature.

6. An energy saving method in indoor air conditioning according to claim 5, wherein said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out at a plurality of points on the upper and lower parts of the room, said detecting of the upper temperature and the lower temperature on the upper and lower parts of the room is carried out at the plurality of suction or exhaust points of the air, and an increase or decrease of a suction rate or exhaust rate of the air is carried out at the respective points where said sucking or exhausting of the air from the upper and lower parts of the room in said vertically circulating of the indoor air is carried out.

7. An energy saving method in indoor air conditioning according to claim 5, wherein said detecting of the upper temperature and the lower temperature detects the upper temperature in the room at least at one point near the ceiling and the lower temperature in the room is detected at least at one point near the floor.