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WO2012020907A1 - Unité de traitement d'air utilisant la technologie de récupération de la chaleur de refroidissement/déshumidification - Google Patents

Unité de traitement d'air utilisant la technologie de récupération de la chaleur de refroidissement/déshumidification Download PDF

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Publication number
WO2012020907A1
WO2012020907A1 PCT/KR2011/002778 KR2011002778W WO2012020907A1 WO 2012020907 A1 WO2012020907 A1 WO 2012020907A1 KR 2011002778 W KR2011002778 W KR 2011002778W WO 2012020907 A1 WO2012020907 A1 WO 2012020907A1
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WO
WIPO (PCT)
Prior art keywords
air
heat exchanger
cooling
cooling coil
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/KR2011/002778
Other languages
English (en)
Korean (ko)
Inventor
유성연
윤홍익
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.)
Gagyotech Co Ltd
Original Assignee
Gagyotech Co 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 Gagyotech Co Ltd filed Critical Gagyotech Co Ltd
Publication of WO2012020907A1 publication Critical patent/WO2012020907A1/fr
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
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • F24F3/0442—Systems in which all treatment is given in the central station, i.e. all-air systems with volume control at a constant temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

Definitions

  • the present invention relates to an air conditioner using a cooling / dehumidifying heat recovery technology, and more particularly, in order to properly maintain indoor temperature and humidity in summer, indoor air or outdoor air is sucked in to properly cool / dehumidify energy. It relates to an air conditioner using a cooling / dehumidification heat recovery technology that can save energy by recovering and reusing.
  • An air handling unit is installed in a machine room or air conditioning room of a building to cool or heat air and supply it to each room through a duct.
  • an air conditioner generally provides a comfortable level of air supplied to a room. It includes cooling, dehumidification, heating, and humidification to maintain temperature and humidity.
  • air is cooled and supplied to the room by a cooling device
  • air is heated and supplied to the room by a heating device.
  • the summer contains an excessive amount of moisture, the moisture is removed from the air and then supplied to the room.
  • the air is cooled to a temperature necessary for dehumidification by a cooling device and then supplied to the room.
  • An air conditioner having such a function generally has a structure as shown in FIG. 1, wherein the air introduced into the air conditioner is blown downstream by the blower 101, and the blown air is filtered through dust and then filtered. After being cooled or heated while passing through the cooling coil 120 and / or the heating coil, it is humidified by a humidifier as necessary and then supplied back to the room through the blower 102, wherein the lower portion of the coil 120 Since the drain portion 121 is installed, the condensed water generated from the cooling coil 120 is discharged to the outside of the air conditioner.
  • the air conditioner If the air conditioner contains a large amount of moisture in the summer, the air conditioner first cools the air to a temperature necessary for dehumidification through a cooling coil installed inside the air conditioner to remove an excessive amount of moisture in the air. Remove moisture from the air.
  • the air must be reheated by the heating device to the proper temperature and supplied to the room.
  • the device for reheating is omitted in most air conditioners, so that the air in a comfortable state is indoors. It is difficult to feed on.
  • Applicant relates to an energy-saving cooling / reheating system for cooling the air to a temperature required for dehumidification through a cooling coil when dehumidifying the air conditioner in summer, and then again to prevent energy loss caused by reheating the air by a heating device.
  • Proposed invention and received a patent registration Patent No. 0836232).
  • the technique proposed in this document is provided with an air inlet in the energy-saving cooling / reheating system as shown in FIG. 2 and allows the air passing through the air supply to pass through the square plate heat exchanger 210 and then cooled.
  • the flow direction is switched 200 through the coil 220, and then passes again through the plate heat exchanger 210, and then passes through the heating coil 230 to the room along the air outlet installed in parallel (parallel) with the air inlet.
  • the air flows along the flow path of 1-> 2-> 3-> 4-> 5, which is the temperature required for dehumidifying the air by the cooling coil when dehumidifying the air in summer.
  • the low-temperature air After cooling to dehumidification, the low-temperature air passes through the plate heat exchanger 210 so that the air is reheated by the heat exchanger 210 without reheating the air by a heating coil or the like. And energy required for dehumidification and energy due to reheating.
  • the cooling / reheating system is advantageous in terms of energy saving, but the air inlet and the air outlet are designed to be arranged in parallel, and larger installation space is required than the existing air conditioner, so it is difficult to apply to the existing air conditioner. have.
  • the present invention has been made to improve the overall problems in the conventional air conditioner as described above, the present invention is to save the energy required for cooling / dehumidification and reheating and at the same time can be applied to the existing air conditioner structure
  • the purpose is to provide an improved air conditioner.
  • the air conditioner is a blower, a heat exchanger, a cooling coil and a blower are sequentially located along the air flow direction;
  • the heat exchanger and the cooling coil are located between the blower and the blower;
  • a heat exchanger is installed at the front side of the cooling coil, and an air passage is formed at a lower portion of the heat exchanger by a vertical partition plate, and an air passage connected to the air passage by a vertical partition plate and a horizontal partition plate at a downstream side of the cooling coil. Is formed, and an air passage is formed at an upper portion of the heat exchanger, the cooling coil, and the air passage so that the air passing through the heat exchanger is cooled by the cooling coil, and then passes through the cooling coil again. By reflowing the heat exchanger.
  • a blower, a heat exchanger, a cooling coil, a humidifier and a blower are sequentially located along the air flow direction;
  • the heat exchanger and the cooling coil are located between the blower and the blower;
  • a heat exchanger is installed at the front side of the cooling coil, and an air passage is formed at a lower portion of the heat exchanger, and an air passage is formed at a downstream side of the cooling coil by a vertical partition plate, whereby air passing through the heat exchanger is transferred by the cooling coil.
  • the present invention may be implemented to further control the temperature of the air supplied to the room having a bypass unit further.
  • the present invention can save energy by installing a heat exchanger in the air conditioner and recovering energy from the air cooled / dehumidified by the heat exchanger.
  • the present invention can remove the heat exchanger acting as a resistance element when the cooling / dehumidification is not required to reduce the energy loss by reducing the resistance to air flow.
  • the present invention further includes a bypass unit, and if necessary, the temperature of the air supplied to the room can be finely adjusted by bypassing and supplying an appropriate amount of the cooled air.
  • FIG. 1 is a configuration diagram showing an example of a conventional general air conditioner
  • FIG. 2 is a block diagram showing a conventional energy-saving cooling / dehumidification heat system
  • Figure 3a is a block diagram showing an example of an air conditioner using a cooling / dehumidification heat recovery technology according to the present invention
  • Figure 3b is a block diagram showing an air passage of the heat exchanger mounted to the air conditioner of Figure 3a,
  • FIG. 4 is a configuration diagram showing an example of removing the heat exchanger and the vertical partition plate from the air conditioner of Figure 3a,
  • Figure 5a is a block diagram showing another example of an air conditioner using a cooling / dehumidification heat recovery technology according to the present invention
  • Figure 5b is a block diagram showing an air passage of the heat exchanger mounted to the air conditioner of Figure 5a,
  • FIG. 6 is a configuration diagram showing an example of removing the heat exchanger and the vertical partition plate of Figure 5a,
  • FIG. 7 is an isolated perspective view showing an example of a heat exchanger in the present invention.
  • Air conditioner 10A, 10B, 10C Air passage
  • blower 30 heat exchanger
  • blower 81, 82 vertical block plate
  • the air conditioner 10 of the present invention includes a blower 20, a heat exchanger 30, and cooling therein.
  • the coil 40, the humidifier 60 and the blower 70 are sequentially located along the air flow direction.
  • the indoor air inlet 11, the indoor air outlet 12, and the outdoor air inlet 13 are sequentially connected to the air conditioner 10 having such a structure, and indoor and outdoor air is introduced therefrom. It is cooled through the cooling coil 40 and then supplied to the room. At this time, by passing through the filter 14 before the indoor and outdoor air flows into the cooling coil 40 may be configured to remove foreign matter or fine dust in the air.
  • the cooling coil 40 may be used as a heating coil in the winter, and therefore, reference numeral 40 denotes a cooling coil or a heating coil. May be used.
  • Some air introduced from the room through the indoor air inlet 11 is discharged directly to the outside through the indoor air outlet 12 without passing through the cooling coil 40 for indoor ventilation.
  • the air conditioner of the present invention In the configuration of the air conditioner of the present invention as described above, a blower 20, a cooling coil 40, a humidifier 60 and a blower 70 is provided, the air conditioner inlet air 11, the indoor air outlet 12 and the air conditioner
  • the outdoor air inlet 13 is connected to the same configuration as the conventional air conditioner, but the present invention is different from the conventional air conditioner air flow, which is the heat exchanger (front end of the cooling coil 40) 30) is installed.
  • a plurality of upper and lower heat exchange plates 30A and 30B having a quadrangular shape as shown in FIG. 5B are alternately stacked up and down to form an air passage through which air flows.
  • the air flowing into the heat exchanger through the inlets 31 and 33 flows along the upper and lower air passages formed between the heat exchange plates, and then is discharged through the exhaust ports 32 and 34.
  • Heat exchanger
  • the heat exchanger 30 uses a plate heat exchanger stacked up and down as shown in FIG. 7, and the air introduced into the suction port 31 of the upper heat exchanger plate 30A passes through a plurality of protrusions formed on a plane. The air is discharged to the outlet 32, and the air passing through the cooling coil 40 is then re-introduced through the inlet 33 of the lower heat exchanger plate 30B and discharged to the outlet 34 so that the upper and lower heat exchanger plates 30A and 30B The heat exchange takes place between the air passing through.
  • the heat exchange medium flowing along the inside of the heat exchanger of the present invention does not have a large pressure as air in both the upper and lower layers, it is necessary to change the shape as necessary in square or rectangular shape. It is desirable to use heat exchangers made of this superior plastic.
  • Embodiment 1 relates to an air conditioner having a structure in which indoor air passes through a cooling coil 40 twice as shown in FIG. 3A, wherein a part of the front surface of the cooling coil 40 has a heat exchange structure as shown in FIG. 3B. That is, the inlet port 31 and the exhaust port 32 of the upper heat exchanger plate 30A are formed on the left and right sides of the upper heat exchanger plate 30A, respectively, and the inlet port 33 and the exhaust port of the lower heat exchanger plate 30B ( 34 is provided on the upper and lower surfaces of the lower heat exchanger plate 30B, respectively, and the heat exchanger 30 is alternately stacked, and the lower end of the front surface of the heat exchanger 30 is supported by the vertical partition plate 81.
  • the lower portion of the heat exchanger 30 has an air passage 10A whose front surface is sealed by the vertical partition plate 81.
  • the downstream side of the cooling coil 40 is spaced apart from the cooling coil 40 by a predetermined interval and the vertical partition plate 82 is attached to the horizontal partition plate 83 is installed at the upper end by the downstream of the cooling coil 40
  • Another air passage 10B is formed on the side.
  • another air passage 10C is formed at an upper portion of the heat exchanger 30, the cooling coil 40, and the air passage 10B and connected to a downstream side of the air passage 10A.
  • the indoor air is sucked from the indoor air intake port 11 by the blower 20, and then a part of the indoor air is discharged to the outside through the indoor air discharge port 12. According to the amount, outdoor air is introduced through the outdoor air inlet 13 and mixed with the indoor air.
  • the mixed air mixed with the indoor and outdoor air passes through the heat exchanger 30 and the cooling coil 40 installed in the downstream side along the air passage therein in order and then flows along the air passage 10B, and the cooling coil ( After passing 40 again, it flows along the air passage 10A, and once again passes through the heat exchanger 30, and then flows downstream along the air passage 10C.
  • the present invention condenses the water vapor contained in the mixed air while passing through the cooling coil 40 twice and is discharged to the outside of the air conditioner through the drain part D, whereby the cooling air in the dry state is a heat exchanger ( Re-introduced into 30), the mixed air flowing from the other side and the heat exchanger 30 cross each other and pass through each other.
  • heat exchange is performed between the mixed air and the cooling air, and the mixed air is cooled / dehumidified and the cooling air is Reheated.
  • the cooling air is reheated, and the energy required for cooling / dehumidifying the mixed air is reduced and at the same time, the cooling air is reheated by the heating coil. There is no reheating energy.
  • Embodiment 2 relates to an air conditioner having a structure in which indoor air passes through the cooling coil 40 once as shown in FIG. 5A, and the front surface of the cooling coil 40 has the same structure as that of Example 1 in FIG. 5B.
  • a heat exchanger (30) is installed, and the heat exchanger (30) is supported by being inserted into the partition wall (50) having an opening portion (51) formed at an intermediate portion thereof, whereby the cooling coil (40) and the heat exchanger (30).
  • the lower portion of the air passage (10A) is formed.
  • the downstream side of the cooling coil 40 is provided with a vertical partition plate 82, which is spaced apart from the cooling coil 40 by a predetermined interval, and a horizontal partition plate 83 is attached to the upper end thereof, thereby downstream of the cooling coil 40.
  • Another air passage (10B) is formed in the.
  • the present invention is the indoor air is sucked from the indoor air intake port 11 by the blower 20, and then a part is discharged to the outside through the indoor air exhaust port 12, the indoor air discharged According to the amount of outdoor air through the outdoor air inlet (13) is introduced and mixed with the indoor air.
  • the mixed air mixed with the indoor and outdoor air passes through the heat exchanger 30 and the cooling coil 40 installed in the downstream side along the air passage therein in order, and then the partition wall 50 and the vertical partition plate 82 are used. After passing through the heat exchanger 30 again while flowing along the air passage (10A, 10B) is formed by the flow along the air passage (10C) downstream.
  • the present invention condenses and discharges water vapor contained in the mixed air while passing through the cooling coil 40, and the mixed air and the heat exchanger introduced from the other side while the dry cooling air is re-introduced into the heat exchanger 30. (30) In the interior, they cross each other, and in the process, heat exchange is performed between the mixed air and the cooling air, whereby the mixed air is cooled / dehumidified and the cooling air is reheated.
  • the horizontal partition plate 84 blocks the partition wall 50 and the heating coil 40 and the partition wall 50 and the heating coil 40 located in the upper portion, respectively, so that all air is prevented. It is preferable to flow through the heating coil 40.
  • a damper capable of adjusting the opening in the lower end of the vertical partition plate 82 to form an air passage (10B) located on the side of the cooling coil 40 It may also be carried out by installing the installed bypass portion 87, thereby bypassing some of the air passing through the cooling coil 40 without passing through the heat exchanger (30) and reheated by the heat exchanger (30). By mixing with the supplied air can be precisely and finely adjusted the temperature and humidity of the air supplied to the room.
  • the present invention can save energy by installing a heat exchanger in an air conditioner, recovering energy from the air cooled / dehumidified by the heat exchanger, and reusing it. By bypassing and supplying the appropriate amount of the inside, it is possible to more finely control the temperature and humidity of the air supplied to the room.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Central Air Conditioning (AREA)

Abstract

La présente invention se rapporte à une unité de traitement d'air utilisant la technologie de récupération thermique de refroidissement/déshumidification et comprenant l'unité de traitement d'air (10) dans laquelle une soufflerie (20), un échangeur thermique (30), un serpentin de refroidissement (40), et une soufflerie (70) sont placés dans l'ordre selon le sens d'écoulement de l'air, caractérisée en ce que l'échangeur thermique (30) et le serpentin de refroidissement (40) sont placés entre la soufflerie (20) et la soufflerie (70), l'échangeur thermique (30) est installé sur la surface avant du serpentin de refroidissement (40), un passage d'air (10A) est formé au niveau de la partie inférieure de l'échangeur thermique (30) au moyen d'une plaque de séparation perpendiculaire (81), un passage d'air (10B), qui est relié au passage d'air (10A) au moyen d'une plaque de séparation perpendiculaire (82) et d'une plaque de séparation horizontale (83), est formé au niveau du côté inférieur du serpentin de refroidissement (40), et un passage d'air (10C), qui se raccorde au côté inférieur du passage d'air (10A), est formé au niveau de la partie supérieure de l'échangeur thermique (30), du serpentin de refroidissement (40) et du passage d'air (10B) de manière à ce que l'air qui passe à travers l'échangeur thermique (30) soit refroidi par le serpentin de refroidissement (40), passe de nouveau à travers le serpentin de refroidissement (40), et soit réintroduit dans l'échangeur thermique (30). Conformément à la structure ci-dessus, la présente invention peut doubler les économies d'énergie nécessaire pour refroidir/déshumidifier et réchauffer l'air.
PCT/KR2011/002778 2010-08-11 2011-04-19 Unité de traitement d'air utilisant la technologie de récupération de la chaleur de refroidissement/déshumidification Ceased WO2012020907A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0077095 2010-08-11
KR1020100077095A KR101037871B1 (ko) 2010-08-11 2010-08-11 냉각/제습열 회수기술을 이용한 공조기

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WO2012020907A1 true WO2012020907A1 (fr) 2012-02-16

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WO (1) WO2012020907A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025092904A1 (fr) * 2023-11-03 2025-05-08 深圳市英维克科技股份有限公司 Dispositif de climatisation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101988773B1 (ko) * 2017-12-26 2019-06-12 주식회사 포스코 내시효성 및 가공성이 우수한 냉연강판 및 그 제조방법
JP7202335B2 (ja) * 2020-09-17 2023-01-11 ダイキン工業株式会社 空調システム
KR102814323B1 (ko) * 2021-12-30 2025-05-29 숙명여자대학교산학협력단 복합 열환경 제어장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6170330A (ja) * 1984-09-11 1986-04-11 Takenaka Komuten Co Ltd 寒冷地用空気調和器
KR20020091003A (ko) * 2002-11-06 2002-12-05 주식회사 아텍에너지 에너지절약 항온 항습장치
JP2003294265A (ja) * 2002-04-04 2003-10-15 Akiyoshi Yoshikawa ドライ空調機
JP2008036552A (ja) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd 除湿装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6170330A (ja) * 1984-09-11 1986-04-11 Takenaka Komuten Co Ltd 寒冷地用空気調和器
JP2003294265A (ja) * 2002-04-04 2003-10-15 Akiyoshi Yoshikawa ドライ空調機
KR20020091003A (ko) * 2002-11-06 2002-12-05 주식회사 아텍에너지 에너지절약 항온 항습장치
JP2008036552A (ja) * 2006-08-08 2008-02-21 Matsushita Electric Ind Co Ltd 除湿装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025092904A1 (fr) * 2023-11-03 2025-05-08 深圳市英维克科技股份有限公司 Dispositif de climatisation

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