WO2023248943A1 - 空調装置 - Google Patents

空調装置 Download PDF

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Publication number
WO2023248943A1
WO2023248943A1 PCT/JP2023/022399 JP2023022399W WO2023248943A1 WO 2023248943 A1 WO2023248943 A1 WO 2023248943A1 JP 2023022399 W JP2023022399 W JP 2023022399W WO 2023248943 A1 WO2023248943 A1 WO 2023248943A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
nozzle
area
region
air conditioner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/022399
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
大野裕二
舟里忠益
今若直征
早上将志
伊藤暢規
倉田健二
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taikisha Ltd
Original Assignee
Taikisha Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taikisha Ltd filed Critical Taikisha Ltd
Priority to CN202380048298.0A priority Critical patent/CN119404060A/zh
Priority to JP2024528972A priority patent/JPWO2023248943A1/ja
Publication of WO2023248943A1 publication Critical patent/WO2023248943A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/62—Tobacco smoke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/12—Position of occupants

Definitions

  • the present invention relates to an air conditioner.
  • Spot air conditioning is used in factories, offices, etc. Spot air conditioning focuses on regulating the temperature around the object to be air-conditioned (people, objects, etc.) rather than regulating the room temperature of the entire room, and it blows air locally towards the object to be air-conditioned. That is required.
  • JP-A-4-240339 Patent Document 1
  • JP-A-6-50586 Patent Document 2
  • An air conditioner has an air conditioning target area including a first area and a second area, and blows air toward an air conditioning target, the air conditioner having an air conditioning target area in the first area.
  • a first detection unit that detects an object
  • a first nozzle that blows air in the first area
  • a first air direction change unit that changes the direction of the first nozzle
  • a second detection unit that detects an air-conditioned object in the air conditioner, wherein the first wind direction changing unit detects the air-conditioned object based on the detection result of the air-conditioned object detected by the second detection unit. It is characterized by changing the direction of the nozzle.
  • the direction of the nozzle can be adjusted in advance before the air conditioning object enters the area.
  • the orientation can be controlled. Thereby, continuous air conditioning can be provided to an air conditioned object that moves across areas.
  • FIG. 1 is a schematic diagram of an air conditioner according to an embodiment.
  • FIG. 2 is a sectional view of the vicinity of a nozzle of the air conditioner according to the embodiment.
  • FIG. 2 is a perspective perspective view of the vicinity of a nozzle of the air conditioner according to the embodiment.
  • FIG. 1 is a configuration diagram of an air conditioner according to an embodiment.
  • Embodiments of the air conditioner according to the present invention will be described with reference to the drawings. Below, an example in which the air conditioner according to the present invention is applied to an air conditioner 1 installed in a work room R of a factory will be described.
  • the air conditioner 1 mainly includes a blower 2, a duct 3, a bellows pipe 4, a nozzle 5, an air direction change section 6, an air volume change section 7, a detection section 8, and a control section 9 (Figs. Figure 4).
  • the blower 2, duct 3, bellows pipe 4, and nozzle 5 form an air flow path in the air conditioner 1. That is, the nozzle 5 is connected to the blower 2 via the duct 3 and the bellows pipe 4.
  • the blower 2 blows, for example, conditioned air. Air supplied from the blower 2 passes through the duct 3, the bellows pipe 4, and the nozzle 5, and is blown out toward the worker P (this is an example of an air-conditioned object) working in the work room R.
  • the work room R is an area to be air-conditioned by the air conditioner 1.
  • the work room R has a plurality of regions (region A, region B).
  • a blower 2 and a duct 3 are provided as equipment common to a plurality of areas.
  • the air conditioner 1 also includes a set of a bellows tube 4, a nozzle 5, a wind direction changing section 6, an air volume changing section 7, a detecting section 8, and a control section 9 for each region.
  • One area approximately corresponds to the air blowing range of the nozzle 5 provided corresponding to the area.
  • the air blowing range can be determined by the output of the blower 2, the shape of the nozzle 5, and the like.
  • the blower 2 in this embodiment is a known ceiling-embedded duct type package air conditioner. An outlet of the blower 2 is connected to a duct 3. The blower 2 supplies conditioned air to the duct 3. The operation of the blower 2 is controlled by a blower control section 21.
  • the duct 3 is placed in the upper part of the work chamber R.
  • a plurality of openings 31 are provided in the middle of the duct 3.
  • One end of the bellows tube 4 is connected to each of the plurality of openings 31.
  • a nozzle 5 is connected to the other end of the bellows tube 4. That is, the air conditioner 1 has a plurality of nozzles 5 connected to the blower 2 via the duct 3 and the bellows pipe 4.
  • These plurality of nozzles 5 function as a plurality of air outlets that blow out air into the work chamber R. Note that for both the duct 3 and the bellows pipe 4, members conventionally used in the field of air conditioning equipment can be used.
  • the nozzle 5 has a tubular nozzle body 51, a support shaft 52 extending inside the nozzle body 51, and a support frame 53 connecting the nozzle body 51 and the support shaft 52 (FIGS. 2 and 3).
  • the support shaft 52 is connected to the wind direction changing section 6. The direction of the nozzle 5 is changed by changing the attitude of the support shaft 52 by the wind direction changing unit 6.
  • the wind direction changing unit 6 is configured to be able to change the direction of the nozzle 5 in at least two axes.
  • the wind direction changing unit 6 in this embodiment includes a first servo motor 61 and a second servo motor 62 (which are examples of at least two drive devices) (FIGS. 2 and 3).
  • the first servo motor 61 and the second servo motor 62 are both provided inside the bellows tube 4.
  • a first frame 63 is provided to extend downward from the opening 31.
  • the first servo motor 61 is supported by the first frame 63.
  • a second frame 64 is attached to the drive shaft of the first servo motor 61.
  • the second servo motor 62 is supported by the second frame 64.
  • the support shaft 52 of the nozzle 5 is attached to the drive shaft of the second servo motor 62 .
  • the second frame 64 and second servo motor 62 rotate about the first axis X1. Further, by driving the second servo motor 62, the support shaft 52 rotates about the second axis X2.
  • the direction of the nozzle 5 can be changed along two axes, the first axis X1 and the second axis X2. With this configuration, it is possible to freely control the direction of the nozzle 5 within a hemispherical range centered on the opening 31, and the nozzle 5 can accurately track the worker P.
  • the air volume changing unit 7 is configured to be able to change the volume of air blown out from the nozzle 5.
  • This embodiment includes a shutter section 71 provided in the opening section 31 as the air volume changing section 7 .
  • the shutter portion 71 is provided inside the bellows tube 4.
  • the shutter section 71 has a fixed plate 72, a movable plate 73, and a third servo motor 74.
  • the fixing plate 72 is a disc-shaped member provided with a plurality of fan-shaped ventilation holes, and is fixed to the opening 31 .
  • the movable plate 73 is a disc-shaped member provided with a plurality of fan-shaped ventilation holes, and is provided so as to be rotatable about the center of the fixed plate 72.
  • the plurality of ventilation holes of the fixed plate 72 and the plurality of ventilation holes of the movable plate 73 are provided so that they can have an overlapping positional relationship.
  • the opening area (opening area) of the opening 31 can be changed.
  • the opening area (opening area) of the opening 31 can be changed between the second state. With this configuration, the volume of air blown out from the nozzle 5 can be changed.
  • the third servo motor 74 is attached to the first frame 63.
  • a movable plate 73 is connected to a drive shaft of a third servo motor 74. That is, by driving the third servo motor 74, the movable plate 73 rotates with respect to the fixed plate 72, and the opening area (opening area) of the opening 31 can be changed.
  • the detection unit 8 is a device that can detect the worker P.
  • This embodiment includes a first camera 81 and a second camera 82 as the detection unit 8.
  • the first camera 81 is attached to the tip of the nozzle 5.
  • the first camera 81 has a configuration in which the direction in which the nozzle 5 faces, that is, the direction in which the wind is blown from the nozzle 5 is visible.
  • a second camera 82 is attached to the top of the corresponding area. The second camera 82 is configured so that most of the corresponding area is in its field of view.
  • a first camera 81 provided at the tip of the nozzle 5 tracks the worker P. Even if the worker P moves within the area, the worker P can be included in the field of view of the first camera 81. However, the first camera 81 has a blind spot on the side opposite to the direction of the air outlet of the nozzle 5 . On the other hand, although the second camera 82 is less likely to cause a blind spot, depending on the relationship between the angle of view of the second camera 82 and the size of the area, it may be difficult to cover the entire area in its field of view. Note that a plurality of second cameras 82 may be provided for one area.
  • the detection unit 8 that is unlikely to have a blind spot is realized. ing. Note that in this embodiment, the range that can be detected by the detection unit 8 in each region is larger than the range of the region.
  • the wind direction changing unit 6 controls the wind direction
  • the air volume changing unit 7 controls the air volume, depending on the state of the air conditioned object detected by the first camera 81 and the second camera 82. control, and control of the output of the blower 2. A specific control method will be described later.
  • the control unit 9 executes arithmetic processing for controlling the wind direction changing unit 6 and the air volume changing unit 7.
  • the control section 9 includes a wind direction changing section 6 (a first servo motor 61 and a second servo motor 62), an air volume changing section 7 (a third servo motor 74), and a detecting section 8 (a first camera 81 and a second servo motor 62). It is electrically connected to the second camera 82) (FIG. 4).
  • the control unit 9 has images captured by the first camera 81 and the second camera 82 (which are examples of detection results by the detection device), and control amounts of the first servo motor 61 and the second servo motor 62 ( Signals representing various parameters such as the control amount of the third servo motor 74 (correlated with the direction of the air outlet of the nozzle 5) and the control amount of the third servo motor 74 (correlated with the volume of air blown out from the nozzle 5) can be input. .
  • a plurality of control units 9 are provided corresponding to each of a plurality of regions.
  • the plurality of control units 9 are electrically connected to each other.
  • each control section 9 is also electrically connected to a blower control section 21 that controls the blower 2 .
  • Air conditioner control (1) Control of each nozzle alone
  • the control unit 9 executes arithmetic processing to specify the position of the worker P based on images taken by the first camera 81 and the second camera 82.
  • Specific examples of such calculation processing include calculation processing for recognizing a specific mark (image, color, etc.) worn by the worker P, calculation processing for recognizing a moving object within the visual field, face recognition, and the like.
  • the air direction changing unit 6 (the first servo motor 61 and the second servo motor 62) is operated so that the outlet of the nozzle 5 faces the specified position of the worker P. That is, the wind direction changing unit 6 can control the direction of the nozzle 5 corresponding to the corresponding region (in other words, the blowing range of the nozzle 5) based on the detection result of the worker P in the corresponding region.
  • the second worker (second worker Q" to distinguish from the first worker P) '' (not shown) enters the area, priority is given to tracking the first worker P who was the target of tracking first, and tracking of the second worker Q is not performed. do not have.
  • tracking of the second worker Q may be started.
  • control unit 9 can perform calculation processing to estimate the distance from the air outlet of the nozzle 5 to the worker P based on images taken by the first camera 81 and the second camera 82. Specifically, the distance from the outlet of the nozzle 5 to the worker P is estimated based on the size of the worker P in the photographed image. Then, based on the estimation result of the distance to the worker P, the air volume changing unit 7 (third servo motor 74) can be controlled to blow out an appropriate air volume from the nozzle 5. Note that when the worker P is not present in the photographed image, the air volume changing unit 7 sets the opening 31 to the second state so that no air is blown out from the nozzle 5. That is, based on the detection result of the worker P in one area (in other words, the blowing range of the nozzle 5), the air volume changing unit 7 can change the air volume of the air blown out from the nozzle 5 corresponding to the area. .
  • the control unit 9 predicts the movement of the worker P several seconds later. It is possible to perform arithmetic processing. For example, the future course of the worker P can be predicted based on the transition of the position of the worker P in a plurality of continuously shot images.
  • the control when the worker P is moving from the second area B toward the first area A will be explained (Fig. 1 ).
  • the worker P exists in the second region B, and the second detection unit 8B provided corresponding to the second region B detects the worker P.
  • the wind direction changing unit 6B provided corresponding to the second region B is controlled so that the second nozzle 5B provided corresponding to the second region B tracks the worker P.
  • the air volume changing unit 7B is controlled so as to blow out an appropriate amount of air from the second nozzle 5B.
  • air is not blown out from the first nozzle 5A provided corresponding to the first area A.
  • the second control unit 9B corresponding to the second region B predicting the movement of the worker P, it is predicted that the worker P will enter the first region A.
  • the entry position E when the worker P enters the first area A is predicted.
  • the second control unit 9B corresponding to the second area B controls the first control unit 9A corresponding to the first area A so that the worker P can move from the entry position E to the first area A. Submit information regarding your expected entry into the country.
  • the first control unit 9A that has received this directs the first nozzle 5A corresponding to the first area A to the predicted entry position E in advance.
  • the first control unit 9A changes the air volume corresponding to the first area A so that the blowing of air from the first nozzle 5A is started at the timing when the worker P enters the first area A. 7.
  • the first detection unit 8A since the range that can be detected by the first detection unit 8A is larger than the range of the first area A, the first detection is performed before the worker P enters the first area A.
  • the section 8A can detect the worker P. Therefore, the timing to start blowing out air from the first nozzle 5A can be synchronized with the approach of the worker P. Thereby, even if the worker P leaves the second area B and cannot receive air from the second nozzle 5B, he or she can still receive air from the first nozzle 5A in the first area A. In other words, continuous air blowing is achieved, and the comfort of the worker P is less likely to be impaired. Note that at the same time as the first nozzle 5A starts blowing air, the second nozzle 5B stops blowing air.
  • the worker P when the worker P is moving from the second area B toward the first area A, it is predicted based on the detection result of the second detection unit 8B corresponding to the second area B. If the worker P, who is identified based on the entry position of the worker P into the first area A and the detection result of the first detection unit 8A corresponding to the first area A, actually enters the first area A.
  • the blowing of air from the first nozzle 5A is controlled based on the timing of entry. That is, the control of the wind direction of the first nozzle 5A corresponding to the first area A is performed by the first detection unit 8A corresponding to the first area A and the second detection unit corresponding to the second area B. This is performed based on the detection result of the worker P by the section 8B.
  • control sections 9 corresponding to each of the plurality of areas control the control state of the air volume changing section 7 (the third servo) for the blower control section 21.
  • the control amount of the motor 74 or the air volume of the nozzle 5 converted from the control amount is transmitted.
  • the blower control unit 21 calculates the total air volume of the nozzles 5 in all regions based on the information received from the plurality of control units 9, and controls the output of the blower 2 so that the total air volume can be supplied. Thereby, the output of the blower 2 can be controlled to a level necessary and sufficient to maintain the comfort of the worker P, contributing to energy saving.
  • blower 2 is a ceiling-embedded duct type package air conditioner
  • a configuration may also be adopted in which air is blown using a blower that does not have an air conditioning function.
  • the configuration in which the worker P is the object to be air-conditioned has been described as an example.
  • objects that move by themselves such as animals and machines, or goods (raw materials, semi-finished products, finished products, etc.) that are transported by a belt conveyor or the like may also be air-conditioned objects.
  • the configuration in which the nozzle 5 is connected to the blower 2 via the duct 3 and the bellows pipe 4 has been described as an example.
  • the manner in which the blower and nozzle are connected is not limited.
  • the wind direction changing unit 6 includes the first servo motor 61 and the second servo motor 62 has been described.
  • the direction of the nozzle may be changeable in three or more axes, or a device other than a servo motor may be used.
  • the air volume changing unit 7 includes the shutter unit 71 having the fixed plate 72, the movable plate 73, and the third servo motor 74 has been described.
  • the air volume changing section may use a device such as a regulating valve.
  • the detection unit 8 includes the first camera 81 and the second camera 82 has been described.
  • the detection unit may be configured using sensors such as an infrared sensor, an infrared array, an infrared camera, an ultrasonic sensor, an RFID tag, a beacon, a wireless LAN, a magnetic field, and a CO 2 concentration.
  • the number of individual devices that make up the detection device is not limited, and a single device may be used to detect air-conditioned objects within an area, or multiple devices may work together to detect air-conditioned objects within an area. Objects may also be detected.
  • control unit 9 collectively performs arithmetic processing related to control.
  • An independent control section may be provided for the wind direction changing section and the air volume changing section.
  • the detection unit may perform arithmetic processing to specify the distance to the air-conditioned object and other matters.
  • a control unit may be provided that collectively executes calculation processing related to the wind direction changing unit, air volume changing unit, and detection unit corresponding to a plurality of areas, and the blower.
  • the present invention is not limited to a configuration in which the number of installed nozzles, detection units, air direction changing units, and air volume changing units is the same.
  • a configuration was described in which the distance from the tip of the nozzle 5 to the worker P is estimated and the air volume is controlled based on the distance.
  • a configuration may also be adopted in which the air volume is controlled based on information other than distance.
  • two adjacent regions in the air conditioning target area may be arranged with an overlapping portion, may be arranged adjacent to each other across a boundary line, or may be arranged adjacent to each other across a boundary line. They may be spaced apart.
  • air can be blown out from the respective two nozzles adjacent to the overlapping portion.
  • air can be blown simultaneously to a plurality of objects to be air-conditioned.
  • the control of the wind direction of the first nozzle 5A corresponding to the first area A is controlled by the first detection unit 8A corresponding to the first area A and the second area B.
  • the configuration performed based on the detection result of the worker P by the second detection unit 8B has been described.
  • the wind direction of the nozzle corresponding to the first region A may be controlled based only on the detection result of the air-conditioned object by the detection unit corresponding to the second region B.
  • the timing to start blowing air from the first nozzle 5A is controlled based on the detection result of the second detection unit 8B.
  • the configuration predicts the timing at which the worker P enters the first area A based on the detection result of the second detection unit 8B, and controls the timing at which air blowing from the first nozzle 5A starts. You can also use it as
  • Air conditioner 2 Blower 3: Duct 4: Bellows pipe 5: Nozzle 6: Wind direction changing section 7: Air volume changing section 8: Detection section 9: Control section A: First area B: Second area

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
PCT/JP2023/022399 2022-06-20 2023-06-16 空調装置 Ceased WO2023248943A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380048298.0A CN119404060A (zh) 2022-06-20 2023-06-16 空调装置
JP2024528972A JPWO2023248943A1 (enrdf_load_stackoverflow) 2022-06-20 2023-06-16

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022098988 2022-06-20
JP2022-098988 2022-06-20

Publications (1)

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WO2023248943A1 true WO2023248943A1 (ja) 2023-12-28

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PCT/JP2023/022399 Ceased WO2023248943A1 (ja) 2022-06-20 2023-06-16 空調装置

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JP (1) JPWO2023248943A1 (enrdf_load_stackoverflow)
CN (1) CN119404060A (enrdf_load_stackoverflow)
WO (1) WO2023248943A1 (enrdf_load_stackoverflow)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185534U (ja) * 1983-05-27 1984-12-10 トヨタ自動車株式会社 局所空調制御装置
JPH01136836U (enrdf_load_stackoverflow) * 1988-03-10 1989-09-19
JP2009250589A (ja) * 2008-04-10 2009-10-29 Takenaka Komuten Co Ltd パーソナル空調システム
WO2016185587A1 (ja) * 2015-05-20 2016-11-24 三菱電機株式会社 空調機、空調制御システムおよびプログラム

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185534U (ja) * 1983-05-27 1984-12-10 トヨタ自動車株式会社 局所空調制御装置
JPH01136836U (enrdf_load_stackoverflow) * 1988-03-10 1989-09-19
JP2009250589A (ja) * 2008-04-10 2009-10-29 Takenaka Komuten Co Ltd パーソナル空調システム
WO2016185587A1 (ja) * 2015-05-20 2016-11-24 三菱電機株式会社 空調機、空調制御システムおよびプログラム

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CN119404060A (zh) 2025-02-07
JPWO2023248943A1 (enrdf_load_stackoverflow) 2023-12-28

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