EP4350230A1 - Conduit d'air pour système de pompe à chaleur - Google Patents

Conduit d'air pour système de pompe à chaleur Download PDF

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Publication number
EP4350230A1
EP4350230A1 EP22199450.2A EP22199450A EP4350230A1 EP 4350230 A1 EP4350230 A1 EP 4350230A1 EP 22199450 A EP22199450 A EP 22199450A EP 4350230 A1 EP4350230 A1 EP 4350230A1
Authority
EP
European Patent Office
Prior art keywords
fan
assembly
frame
refrigerant
outer panel
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.)
Pending
Application number
EP22199450.2A
Other languages
German (de)
English (en)
Inventor
Florian ANTOINE
Jean-François BOEHM
Arnaud Bichler
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.)
BDR Thermea Group BV
Original Assignee
BDR Thermea Group BV
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 BDR Thermea Group BV filed Critical BDR Thermea Group BV
Priority to EP22199450.2A priority Critical patent/EP4350230A1/fr
Priority to PCT/EP2023/063553 priority patent/WO2023232508A1/fr
Priority to PCT/EP2023/063554 priority patent/WO2023232509A1/fr
Priority to PCT/EP2023/063545 priority patent/WO2023232501A1/fr
Priority to PCT/EP2023/063547 priority patent/WO2023232503A1/fr
Priority to PCT/EP2023/063546 priority patent/WO2023232502A1/fr
Priority to PCT/EP2023/063550 priority patent/WO2023232505A1/fr
Priority to PCT/EP2023/063551 priority patent/WO2023232506A1/fr
Priority to PCT/EP2023/063548 priority patent/WO2023232504A1/fr
Publication of EP4350230A1 publication Critical patent/EP4350230A1/fr
Pending 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/12—Preventing or detecting fluid leakage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • 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
    • F24F13/20—Casings or covers
    • F24F2013/202—Mounting a compressor unit therein
    • 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
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
    • F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler

Definitions

  • the invention relates to an assembly for heating water in a building, in particular a heat pump system, wherein the assembly comprises a frame, a refrigerant component compartment, and a fan.
  • the fan expelling any refrigerant gas from the refrigerant component compartment in case of a leakage of said refrigerant gas.
  • Heating of water in buildings may be accomplished by means of a heat pump system.
  • a heat pump system may either be a ground source heat pump (GSHP) system or an air source heat pump (ASHP) system.
  • GSHP ground source heat pump
  • ASHP air source heat pump
  • GSHP ground source heat pump
  • calories are exchanged between the ground, or ground water, and a fluid, the fluid in particular being air or water.
  • the calories in the ground may be extracted by capturing calories in a water table or by circulating a water-based circuit in the ground.
  • calories are exchanged between the air and a fluid, in particular air or water.
  • a heat pump system typically comprises at least one first heat exchanger for capturing calories from a first source, at least one second heat exchanger for transferring captured calories to a second destination fluid, and a refrigerant loop between both heat exchangers to transport the captured calories from the at least one first heat exchanger to the at least one second heat exchanger.
  • the at least one first and second heat exchangers together with the refrigerant loop form, at least a part of, a heat exchanging circuit.
  • the heat exchange achieved can be used to cool or heat the desired medium.
  • the medium to be heated can be a heating water circuit and/or a sanitary water circuit.
  • components are preferably grouped in refrigerant components (including refrigerant pipes including brazing) and non-refrigerant components (e.g. hydraulics and electronics) where both groups are preferably separated for safety reasons.
  • refrigerant components including refrigerant pipes including brazing
  • non-refrigerant components e.g. hydraulics and electronics
  • any leaked refrigerant is expelled out of, and away from, the heat pump system as much and fast as possible.
  • the refrigerant in gaseous form will be further away from any ignition source within the heat pump system.
  • the gas can naturally expand and become less dense. As a result of the lower density, the risk of ignition and explosion of the refrigerant would be further reduced.
  • the heat pump system is installed inside a building, the refrigerant could thus be expelled within a larger room or when properly ducted even towards the outside of the building.
  • the object of the invention is obtained by an assembly for heating water in a building, in particular a heat pump system, wherein the assembly comprises a frame, a refrigerant component compartment mounted on the inside of the frame, and a fan mounted on an outer panel of the frame and in fluid connection with the refrigerant compartment, wherein the refrigerant component compartment comprises a casing.
  • the frame is an outer frame of the assembly.
  • the frame holds a plurality of heat pump components. In an operational state, the frame comprises multiple panels on the outside to protect all the components situated within the frame and prevents users from accessing the heat pump components.
  • a refrigerant component compartment is mounted which groups all the refrigerant components such as, amongst others, one or more heat exchangers, a compressor, an expansion valve and refrigerant piping comprising a refrigerant.
  • the refrigerant component compartment separates the refrigerant components from any of the other components situated within the frame, in particular to separate potentially leaked flammable refrigerants and prevent the flammable refrigerant from reaching any of the other components.
  • the refrigerant component compartment comprises one or more casing elements on at least one side to prevent any physical access to the refrigerant components after installment of the components.
  • the casing elements may also reduce the chance of any potentially leaked refrigerant to flow from within the refrigerant components compartment to any of the other components situated within the frame.
  • the fan mounted on the outer panel of the frame is in fluid connection with the refrigerant component compartment, meaning there is an air passage from the refrigerant component compartment to the fan. This may be an opening on at least one side of the refrigerant component compartment to which the fan is installed, or which is ducted towards the fan.
  • the fan is a brushless motor exhaust fan to ensure there is no electrical wiring within the fan that could potentially be an ignition source for the leaked refrigerant that passes through the fan.
  • the fan may be operated and spinning continuously.
  • the fan is only operated when a leakage is detected by means of a leakage detector situated within the refrigerant component compartment or by means of a combination of temperature and pressure sensors to detect a temperature and pressure drop within the system in comparison to normal operation.
  • a leakage detector situated within the refrigerant component compartment or by means of a combination of temperature and pressure sensors to detect a temperature and pressure drop within the system in comparison to normal operation.
  • the fan comprises a fastening surface which, when mounted to the frame, is orientated generally parallel to and in contact with the outer panel of the frame.
  • the fastening surface may be a structural part of the fan, for example a portion of the surface surrounding the fan blades.
  • the fan is mounted to the outer panel using a fan bracket wherein the fan bracket comprises a fastening surface which, when mounted to the frame, is orientated generally parallel to and in contact with the outer panel of the frame.
  • the fan bracket is a separate surface or bracket in which the fan can be inserted. While a fan could be attached directly to a panel of the frame without the use of a fan bracket, the fastening surface can be increased by extending the contact area between the fan and the panel of the frame through the use of the fan bracket. Thus the tightness between the fan and the panel of the frame is increased.
  • the bracket may be attached to the panel of the frame prior to inserting the fan into the bracket.. This allows the use of standardized fans while the fan bracket can accommodate any size or shape necessary to properly mount to the frame.
  • the fan bracket may act as a guide between the refrigerant component compartment and the outer side of the assembly.
  • the fastening surface abuts the outer panel of the frame by at least 1,5 mm. This ensures that the contact area between the fastening surface and the outer panel of the frame is further increased and thus the tightness between the fan and the outer panel of the frame is increased. As such, the increased tightness improves the air flow due to a reduction of drop pressure and proper ducting, resulting in the reduction of the required fan speed which helps the improvement of the acoustic performance of the product as a whole. Furthermore, when an air duct is attached to the fan bracket, the increased tightness improves the safety of the system by preventing the passage of stale air along the edges of the fan bracket and into the installation site, thus ensuring the air travels along the path defined by the air duct.
  • a seal is positioned between the fastening surface and the outer panel of the frame and/or between the refrigerant component compartment and the air duct.
  • the seal further increases the air tightness between the fan and the outer panel of the frame.
  • the seal may be one single seal or comprised out of multiple individual seals.
  • the seal is integrated with the refrigerant component compartment.
  • the seal ensures air tightness between the refrigerant component compartment and the fastening surface and thus improving air tightness as a whole.
  • the seal may by any kind of seal suitable to create said air tightness.
  • the fastening surface comprises at least two fixing points to fasten the fan to the outer panel of the frame.
  • the fastening surface can, in principle, be fixed to the outer frame using glue. In time, however, glue could come loose due to influences of heat and humidity.
  • Using at least two fixing points allows a fixing means to protrude the fixing points and allow the fan being securely fastened to the outer panel of the frame.
  • the fixing means may be, for instance, screws, rivets, clips, housing, hook or a combination thereof.
  • the fixing means may be two or more guides protruding on the outer side of the outer frame for sliding and guiding the fan or fan bracket using the guides into a correct position without the use of screws or the like.
  • the fastening surface comprises at least three fixing points for improved stability of the fastening.
  • the fixing means are preferably accessible from the outer side of the assembly. By having the fixing means on the outer side, the fan may be replaced without the need of opening the assembly.
  • the fixing means are accessible from the side of the outer panel opposite of the refrigerant component compartment, allowing the compartment to be sealed the other side of the panel without the seal preventing the fan from being replaced, cleaned or mounted to the outer panel.
  • the at least two fixing points are removable fixing means such as screws, nuts or couplings. While the fan can be securely fastened using, for instance, rivets, the fan should preferably be reversibly fastened to the outer panel of the frame.
  • a removable fixing means allow for quick and easy replacement of the fan without the need of, for instance, drilling rivets or the like.
  • the removable fixing means are preferably accessible from the outer side of the assembly. By having the removable fixing means on the outer side, the fan may be replaced without the need of opening the assembly.
  • the removable fixing means are accessible from the side of the outer panel opposite of the refrigerant component compartment, allowing the compartment to be sealed the other side of the panel without the seal preventing the fan from being replaced, cleaned or mounted to the outer panel.
  • the fan or fan bracket comprises at least one guide surface.
  • the guide surface may act like a flange that may allow, for instance, a tube to be placed over the flange. This allows for an air duct to be securely mounted over the guide surface and to the fan.
  • the at least one guide surface extends by at least 8 mm.
  • the guide surface preferably extends by at least 8 mm to securely mount such a longer air duct.
  • the at least one guide surface has a cross-sectional area of at least 500 mm2. This allows for sufficient air flow to pass through the guide surface and also allows for an air duct to be mounted with a similar cross-sectional area.
  • an air duct is mounted to the at least one guide surface.
  • the air duct allows for any leaked refrigerant being directed away from the assembly, into the direction the air duct is extending.
  • the air duct may, for instance, be extended towards the outside of the assembly, in particular to the outside of a building to direct the leaked refrigerant outside of the building.
  • the air duct may be any tube, pipe or channel suitable to be used as an air duct.
  • the air duct may, also, extend towards the inside of the assembly to meet with the refrigerant component compartment, thus allowing a connection of said compartment connecting to the part of the air duct, or a separate air duct, extending towards the outside of the assembly.
  • the lowest point of the air duct is situated less than 200 mm in height in relation to a compressor situated within the refrigerant component compartment. This is the distance between the lowest point of the opening in the air duct and the plate on which the compressor rests. If the compressor leaks, leaked refrigerant can only buildup up to 200 mm in height starting from the base of the assembly. This prevents the refrigerant component compartment from filling with refrigerant as any leaked refrigerant will naturally flow towards the lowest point if the air duct. Furthermore, any kind of electronics, that could potentially be an ignition point, situated in the same compartment could then be positioned well above this area to prevent ignition of the leaked refrigerant.
  • the air duct has a cross-sectional area of at least 500 mm2. This allows for sufficient air flow to pass through the air duct.
  • an assembly 1 comprising a frame 2, a refrigerant component compartment 3 further comprising a casing 4, and a fan 5 sitting within fan bracket 6.
  • the fan bracket 6 contacts the refrigerant component compartment 3 by abutting to its casing 4.
  • the fan 5 comprises a fastening surface 7 with fixing points 8a, 8b and a guiding surface 8.
  • the assembly 1 as shown also comprises several heat pump components, including refrigerant components shown within the refrigerant component compartment 3.
  • FIG. 2 shows the fan 5 of assembly 1 in an exploded view.
  • the fan 5 as shown has a fan bracket 6 comprising fastening surface 7.
  • the fastening surface 7 comprises two fixing points 8a, 8b and the fan bracket 6 further comprises a guiding surface 9.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
EP22199450.2A 2022-05-30 2022-10-04 Conduit d'air pour système de pompe à chaleur Pending EP4350230A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP22199450.2A EP4350230A1 (fr) 2022-10-04 2022-10-04 Conduit d'air pour système de pompe à chaleur
PCT/EP2023/063553 WO2023232508A1 (fr) 2022-05-30 2023-05-22 Déflecteur acoustique pour conduit d'échappement d'un système de pompe à chaleur
PCT/EP2023/063554 WO2023232509A1 (fr) 2022-05-30 2023-05-22 Unité de pompe à chaleur, ensemble d'une unité de pompe à chaleur et d'un réservoir et procédé d'installation d'une unité de pompe à chaleur et d'un réservoir
PCT/EP2023/063545 WO2023232501A1 (fr) 2022-05-30 2023-05-22 Ensemble d'un boîtier et d'un tiroir pour chauffer de l'eau dans un bâtiment
PCT/EP2023/063547 WO2023232503A1 (fr) 2022-05-30 2023-05-22 Enceinte pour pompe à chaleur
PCT/EP2023/063546 WO2023232502A1 (fr) 2022-05-30 2023-05-22 Plateau de montage pour maintenir des composants de pompe à chaleur
PCT/EP2023/063550 WO2023232505A1 (fr) 2022-05-30 2023-05-22 Boîtier de composants électroniques pour un système de pompe à chaleur
PCT/EP2023/063551 WO2023232506A1 (fr) 2022-05-30 2023-05-22 Conduit d'air pour système de pompe à chaleur
PCT/EP2023/063548 WO2023232504A1 (fr) 2022-05-30 2023-05-22 Enceinte pour pompe à chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22199450.2A EP4350230A1 (fr) 2022-10-04 2022-10-04 Conduit d'air pour système de pompe à chaleur

Publications (1)

Publication Number Publication Date
EP4350230A1 true EP4350230A1 (fr) 2024-04-10

Family

ID=83594025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22199450.2A Pending EP4350230A1 (fr) 2022-05-30 2022-10-04 Conduit d'air pour système de pompe à chaleur

Country Status (1)

Country Link
EP (1) EP4350230A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010473A1 (fr) * 2001-07-26 2003-02-06 Climastar Sa Pompe a chaleur dispositif de ventilation de securite
CN104864514A (zh) * 2014-02-24 2015-08-26 珠海格力电器股份有限公司 一种空调及其室外机和空调的控制方法
CN109084370A (zh) * 2018-08-06 2018-12-25 广东美的制冷设备有限公司 空调室内机和空调器
FR3070755A1 (fr) * 2017-09-07 2019-03-08 Bernier Developpement Dispositifs de securite pour installations frigorifiques et pompes a chaleur utilisant des fluides frigorigenes toxiques ou inflammables
JP2020051737A (ja) * 2018-09-28 2020-04-02 ダイキン工業株式会社 熱負荷処理システム
CN111503754A (zh) * 2020-04-07 2020-08-07 海信（广东）空调有限公司 空调室外机和空调室外机的控制方法
DE202018006480U1 (de) * 2017-11-27 2020-09-01 Mitsubishi Heavy Industries Thermal Systems, Ltd. Klimaanlage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003010473A1 (fr) * 2001-07-26 2003-02-06 Climastar Sa Pompe a chaleur dispositif de ventilation de securite
CN104864514A (zh) * 2014-02-24 2015-08-26 珠海格力电器股份有限公司 一种空调及其室外机和空调的控制方法
FR3070755A1 (fr) * 2017-09-07 2019-03-08 Bernier Developpement Dispositifs de securite pour installations frigorifiques et pompes a chaleur utilisant des fluides frigorigenes toxiques ou inflammables
DE202018006480U1 (de) * 2017-11-27 2020-09-01 Mitsubishi Heavy Industries Thermal Systems, Ltd. Klimaanlage
CN109084370A (zh) * 2018-08-06 2018-12-25 广东美的制冷设备有限公司 空调室内机和空调器
JP2020051737A (ja) * 2018-09-28 2020-04-02 ダイキン工業株式会社 熱負荷処理システム
CN111503754A (zh) * 2020-04-07 2020-08-07 海信（广东）空调有限公司 空调室外机和空调室外机的控制方法

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