EP4530477A1 - Spiralgehäuse, gebläse und klimaanlage - Google Patents

Spiralgehäuse, gebläse und klimaanlage Download PDF

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Publication number
EP4530477A1
EP4530477A1 EP23939398.6A EP23939398A EP4530477A1 EP 4530477 A1 EP4530477 A1 EP 4530477A1 EP 23939398 A EP23939398 A EP 23939398A EP 4530477 A1 EP4530477 A1 EP 4530477A1
Authority
EP
European Patent Office
Prior art keywords
air duct
volute
fan blade
molded line
convex hull
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
EP23939398.6A
Other languages
English (en)
French (fr)
Other versions
EP4530477A4 (de
Inventor
Qianqian Wang
Yanyan WEI
Dinghan ZHONG
Guanghui XIA
Jinhuang LIN
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Publication of EP4530477A1 publication Critical patent/EP4530477A1/de
Publication of EP4530477A4 publication Critical patent/EP4530477A4/de
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/4246—Fan casings comprising more than one outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/291—Three-dimensional machined; miscellaneous hollowed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet
    • 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0022—Centrifugal or radial fans

Definitions

  • the present invention relates to the technical field of air conditioners, specifically to a volute, a fan and an air conditioner.
  • the distributed air supply technology has gained higher recognition in the air conditioner market.
  • the technology is mainly applied to high-end products, which results in insufficient market competitiveness.
  • the high-pressure air flow at a double-suction volute air outlet is easy to return, which may easily cause vortex loss and return loss in the volute, resulting in reduced fan efficiency and discontinuous aerodynamic noise at the volute outlet, thereby causing poor sound quality of an air conditioner.
  • the main purpose of the present invention is to provide a volute, a fan and an air conditioner to solve the problems of relatively low fan efficiency of a single-centrifugal double-suction fan and discontinuous aerodynamic noise at a volute outlet in the prior art.
  • a volute including: a volute main body, wherein the volute main body includes a fan blade mounting part used for mounting a fan blade assembly and two air duct parts disposed on two sides of the fan blade mounting part at an interval along a first direction and in communication with the fan blade mounting part, and the fan blade mounting part is used for mounting the fan blade assembly; a first air duct molded line and a second air duct molded line are respectively formed between two opposite sides, disposed at an interval along a second direction, of each air duct part and the fan blade mounting part, a joint between a side, close to the first air duct molded line, of each of the two air duct parts and the fan blade mounting part is disposed in a streamline mode, and a volute tongue is disposed at the joint between a side, close to the second air duct molded line, of each of the two air duct parts and the fan blade mounting part; and convex hulls protrud
  • the convex hull includes: an upper surface, the upper surface and the air duct part being disposed at an interval; a first side surface and a second side surface, the first side surface and the second side surface being respectively located on two opposite sides, disposed at an interval along an extension direction of the air duct part, of the upper surface, the first side surface being located on a side, away from the fan blade mounting part, of the upper surface, and the second side surface being located on a side, close to the fan blade mounting part, of the upper surface; and a third side surface and a fourth side surface, the third side surface and the fourth side surface being respectively located on two opposite sides, disposed at an interval along a direction perpendicular to the extension direction of the air duct part, of the upper surface, the third side surface being located on a side, close to the first air duct molded line, of the upper surface, and the fourth side surface being located on a side, close to the second air duct molded line, of the upper surface, wherein the upper surface is connected with an outer surface of
  • an inner wall surface of the side, close to the volute tongue, of the convex hull is connected with an inner wall surface of the side, close to the volute tongue, of the volute main body.
  • a minimum distance between the convex hull and the volute tongue is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull in a extension direction of the air duct part is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull in a direction perpendicular to the extension direction of the air duct part is b, wherein 65 mm ⁇ b ⁇ 75 mm; a the height of the convex hull in a direction parallel to the rotating axis of the fan blade assembly is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • an included angle between the upper surface and the first side surface is ⁇ , wherein 15° ⁇ 25°; an included angle between the upper surface and the second side surface is ⁇ , wherein 30° ⁇ 40°; and an included angle between the upper surface and the fourth side surface is ⁇ , wherein 40° ⁇ 50°.
  • an inner wall surface of the side, away from the volute tongue, of the convex hull is connected with an inner wall surface of a side, away from the volute tongue, of the volute main body.
  • a minimum distance between the convex hull and the volute tongue is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull in a extension direction of the air duct part is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull in a direction perpendicular to the extension direction of the air duct part is b, wherein 85 mm ⁇ b ⁇ 95 mm; and a height of the convex hull in a direction parallel to the rotating axis of the fan blade assembly is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • a gap is respectively reserved between two inner wall surfaces, close to the first air duct molded line and the second air duct molded line respectively, of the convex hull and an inner wall surface of the volute main body.
  • a minimum distance between the convex hull and the volute tongue is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull in a extension direction of the air duct part is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull in a direction perpendicular to the extension direction of the air duct part is b, wherein 50 mm ⁇ b ⁇ 60 mm; and a height of the convex hull in a direction parallel to the rotating axis of the fan blade assembly is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • a fan including the above volute and the fan blade assembly disposed in the volute.
  • an air conditioner including the above fan.
  • the volute of the present invention includes: a volute main body, wherein the volute main body includes a fan blade mounting part used for mounting a fan blade assembly and two air duct parts disposed on two sides of the fan blade mounting part at an interval along a first direction and in communication with the fan blade mounting part, and the fan blade mounting part is used for mounting the fan blade assembly; a first air duct molded line and a second air duct molded line are respectively formed between two opposite sides, disposed at an interval along a second direction, of each air duct part and the fan blade mounting part, a joint between a side, close to the first air duct molded line, of each of the two air duct parts and the fan blade mounting part is disposed in a streamline mode, and a volute tongue is disposed at the joint between a side, close to the second air duct molded line, of each of the two air duct parts and the fan blade mounting part; and convex hulls protruding towards a direction away from a
  • the air volume of a double-suction single-centrifugal fan is increased, the phenomenon of uneven air flow velocity distribution in an air duct is improved, the aerodynamic noise of the double-suction centrifugal fan is reduced, and the working performance of the centrifugal fan is increased.
  • the flow direction of the outlet air flow is adjusted, the phenomenon of air flow return can be effectively suppressed in different air sensing modes, vortices in the air duct are effectively reduced, the air flow loss is reduced, the noise problems such as outlet air duct surge and discontinuous air flow are improved, the comfort experience of users is increased, and the problems of relatively low fan efficiency of a single-centrifugal double-suction fan and discontinuous aerodynamic noise at a volute outlet in the art known to inventors are solved.
  • the present invention provides a volute, including: a volute main body 1, wherein the volute main body 1 includes a fan blade mounting part 3 used for mounting a fan blade assembly 2 and two air duct parts 4 disposed on two sides of the fan blade mounting part 3 at an interval along a first direction and in communication with the fan blade mounting part 3, and the fan blade mounting part 3 is used for mounting the fan blade assembly 2; a first air duct molded line 5 and a second air duct molded line 6 are respectively formed between two opposite sides, disposed at an interval along a second direction, of each air duct part 4 and the fan blade mounting part 3, a joint between a side, close to the first air duct molded line 5, of each of the two air duct parts 4 and the fan blade mounting part 3 is disposed in a streamline mode, and a volute tongue 7 is disposed at the joint between a side, close to the second air duct molded line 6, of each of the two air duct parts 4 and the fan blade mounting part
  • the air volume of a double-suction single-centrifugal fan is increased, the phenomenon of uneven air flow velocity distribution in an air duct is improved, the aerodynamic noise of the double-suction centrifugal fan is reduced, and the working performance of the centrifugal fan is increased.
  • the flow direction of the outlet air flow is adjusted, the phenomenon of air flow return can be effectively suppressed in different air sensing modes, vortices in the air duct are effectively reduced, the air flow loss is reduced, the noise problems such as outlet air duct surge and discontinuous air flow are improved, the comfort experience of users is increased, and the problems of relatively low fan efficiency of a single-centrifugal double-suction fan and discontinuous aerodynamic noise at a volute outlet in the prior art are solved.
  • the convex hull 8 includes: an upper surface 81, the upper surface 81 and the air duct part 4 being disposed at an interval; a first side surface 82 and a second side surface 83, the first side surface 82 and the second side surface 83 being respectively located on two opposite sides, disposed at an interval along an extension direction of the air duct part 4, of the upper surface 81, the first side surface 82 being located on a side, away from the fan blade mounting part 3, of the upper surface 81, and the second side surface 83 being located on a side, close to the fan blade mounting part 3, of the upper surface 81; and a third side surface 84 and a fourth side surface 85, the third side surface 84 and the fourth side surface 85 being respectively located on two opposite sides, disposed at an interval along a direction perpendicular to the extension direction of the air duct part 4, of the upper surface 81, the third side surface 84 being located on a side, close to the first air duct molded line
  • an inner wall surface of the side, close to the volute tongue 7, of the convex hull 8 is connected with an inner wall surface of the side, close to the volute tongue 7, of the volute main body 1, so as to guide the flow direction of the air flow to reduce the mutual impact of the air flow, thereby reducing vortices in an air cavity and reducing the surge noise.
  • a minimum distance between the convex hull 8 and the volute tongue 7 is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull 8 in a extension direction of the air duct part 4 is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull 8 in a direction perpendicular to the extension direction of the air duct part 4 is b, wherein 65 mm ⁇ b ⁇ 75 mm; and a height of the convex hull 8 in a direction parallel to the rotating axis of the fan blade assembly 2 is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • an included angle between the upper surface 81 and the first side surface 82 is ⁇ , wherein 15° ⁇ 25°; an included angle between the upper surface 81 and the second side surface 83 is ⁇ , wherein 30° ⁇ 40°; and an included angle between the upper surface 81 and the fourth side surface 85 is ⁇ , wherein 40° ⁇ 50°.
  • the performance of a bidirectional centrifugal fan can be effectively increased, the production cost can be reduced, and the effects of adjusting the flow direction of the air flow in the outlet air duct and increasing the air volume of the fan can be achieved in different air sensing modes.
  • the phenomenon of air flow return can also be effectively suppressed, vortices in the air duct are reduced, the flow field of the air flow in the air duct of the fan is improved, the aerodynamic noise of the fan is reduced, the overall sound quality of the fan is better, and the comfort experience of users is increased.
  • an inner wall surface of the side, close to the volute tongue 7, of the convex hull 8 is connected with an inner wall surface of a side, close to the volute tongue 7, of the volute main body 1, and an inner wall surface of the side, away from the volute tongue 7, of the convex hull 8 is connected to an inner wall surface of the side, away from the volute tongue 7, of the volute main body 1, so as to adjust the flow direction of the air flow to reduce the mutual impact of the air flow and reduce vortices in an air cavity, thereby reducing the surge noise.
  • a minimum distance between the convex hull 8 and the volute tongue 7 is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull 8 in a extension direction of the air duct part 4 is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull 8 in a direction perpendicular to the extension direction of the air duct part 4 is b, wherein 85 mm ⁇ b ⁇ 95 mm; and a height of the convex hull 8 in a direction parallel to the rotating axis of the fan blade assembly 2 is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • a gap is respectively reserved between two inner wall surfaces, close to the first air duct molded line 5 and the second air duct molded line 6 respectively, of the convex hull 8 and an inner wall surface of the volute main body 1, so as to adjust the flow direction of the air flow to reduce the mutual impact of the air flow and reduce vortices in an air cavity, thereby reducing the surge noise.
  • a minimum distance between the convex hull 8 and the volute tongue 7 is c, wherein 0 ⁇ c ⁇ 5 mm; a width of the convex hull 8 in a extension direction of the air duct part 4 is a, wherein 65 mm ⁇ a ⁇ 75 mm; a length of the convex hull 8 in a direction perpendicular to the extension direction of the air duct part 4 is b, wherein 50 mm ⁇ b ⁇ 60 mm; and a height of the convex hull 8 in a direction parallel to the rotating axis of the fan blade assembly 2 is h, wherein 8 mm ⁇ h ⁇ 12 mm.
  • the present invention provides a fan, including the above volute and the fan blade assembly 2 disposed in the volute.
  • an air deflector is also disposed in the fan.
  • the air deflector can be tilted forward to send the air flow upward, or the air deflector can be tilted backward to compress the air flow, thereby achieving various air sensing experiences.
  • the present invention further provides an air conditioner, including the above fan.
  • the air flow in the air duct can return, resulting in return loss, so that on the one hand, the air volume is reduced, and the work efficiency of the volute is reduced; and on the other hand, larger aerodynamic noise is generated by air flow return. It can be seen from the cross-sectional view of air flow velocity distribution of the air duct part of the volute of the present invention as shown in Fig. 9 that the volute of the present invention greatly improves the above problems.
  • the volute of the present invention includes: a volute main body 1, wherein the volute main body 1 includes a fan blade mounting part 3 used for mounting a fan blade assembly 2 and two air duct parts 4 disposed on two sides of the fan blade mounting part 3 at an interval along a first direction and in communication with the fan blade mounting part 3, and the fan blade mounting part 3 is used for mounting the fan blade assembly 2; a first air duct molded line 5 and a second air duct molded line 6 are respectively formed between two opposite sides, disposed at an interval along a second direction, of each air duct part 4 and the fan blade mounting part 3, the joint between the side, close to the first air duct molded line 5, of each air duct part 4 and the fan blade mounting part 3 is disposed in a streamline mode, and a volute tongue 7 is disposed at the joint between the side, close to the second air duct molded line 6, of each air duct part 4 and the fan blade mounting part 3
  • the air volume of a double-suction single-centrifugal fan is increased, the phenomenon of uneven air flow velocity distribution in an air duct is improved, the aerodynamic noise of the double-suction centrifugal fan is reduced, and the working performance of the centrifugal fan is increased.
  • the flow direction of the outlet air flow is adjusted, the phenomenon of air flow return can be effectively suppressed in different air sensing modes, vortices in the air duct are effectively reduced, the air flow loss is reduced, the noise problems such as outlet air duct surge and discontinuous air flow are improved, the comfort experience of users is increased, and the problems of relatively low fan efficiency of a single-centrifugal double-suction fan and discontinuous aerodynamic noise at a volute outlet in the prior art are solved.
  • orientation words such as “front, back, up, down, left, and right", “horizontal, vertical, perpendicular, and horizontal”, and “top and bottom” are usually based on the orientation or position relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the apparatus or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.
  • the orientation words “inside and outside” refer to the inside and outside of the contour relative to each component.
  • spatial relative terms such as “above”, “over”, “on an upper surface of” and “on the top of” can be used here to describe the spatial position relationship between a device or feature and other devices or features as shown in the accompanying drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientations of the devices described in the accompanying drawings. For example, if the devices in the accompanying drawings are inverted, the devices described as “over other devices or structures” or “above other devices or structures” will be then positioned as “under other devices or structures” or “below other devices or structures”. Therefore, the exemplary term “over” can include two orientations: “over” and "under”. The device can also be positioned in other different manners (rotated 90 degrees or in other orientations), and the spatial relative description used here is explained accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP23939398.6A 2023-05-26 2023-12-22 Spiralgehäuse, gebläse und klimaanlage Pending EP4530477A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202310615109.5A CN116517883B (zh) 2023-05-26 2023-05-26 蜗壳、风机及空调器
PCT/CN2023/141281 WO2024244430A1 (zh) 2023-05-26 2023-12-22 蜗壳、风机及空调器

Publications (2)

Publication Number Publication Date
EP4530477A1 true EP4530477A1 (de) 2025-04-02
EP4530477A4 EP4530477A4 (de) 2025-12-31

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EP23939398.6A Pending EP4530477A4 (de) 2023-05-26 2023-12-22 Spiralgehäuse, gebläse und klimaanlage

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EP (1) EP4530477A4 (de)
CN (1) CN116517883B (de)
WO (1) WO2024244430A1 (de)

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CN116517883B (zh) * 2023-05-26 2025-11-21 珠海格力电器股份有限公司 蜗壳、风机及空调器
CN116951722B (zh) * 2023-08-07 2025-10-24 珠海格力电器股份有限公司 一种风道结构和空调器

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CN216714810U (zh) * 2021-06-22 2022-06-10 珠海格力电器股份有限公司 蜗壳及取暖器
CN114962294B (zh) * 2021-07-19 2025-08-08 青岛经济技术开发区海尔热水器有限公司 一种降噪式离心风机及燃气热水器
CN216044629U (zh) * 2021-11-01 2022-03-15 北京小米移动软件有限公司 离心风道、空气处理装置和空调机
CN218846415U (zh) * 2022-12-21 2023-04-11 珠海格力电器股份有限公司 一种导流结构及具有其的空调
CN218915142U (zh) * 2022-12-21 2023-04-25 珠海格力电器股份有限公司 一种空调
CN116517883B (zh) * 2023-05-26 2025-11-21 珠海格力电器股份有限公司 蜗壳、风机及空调器

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