WO2022217956A1 - Hélice et soufflante de climatiseur de véhicule - Google Patents

Hélice et soufflante de climatiseur de véhicule Download PDF

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Publication number
WO2022217956A1
WO2022217956A1 PCT/CN2021/138411 CN2021138411W WO2022217956A1 WO 2022217956 A1 WO2022217956 A1 WO 2022217956A1 CN 2021138411 W CN2021138411 W CN 2021138411W WO 2022217956 A1 WO2022217956 A1 WO 2022217956A1
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WO
WIPO (PCT)
Prior art keywords
impeller
blade
inlet
outlet
angle
Prior art date
Application number
PCT/CN2021/138411
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English (en)
Chinese (zh)
Inventor
杨云
宋婷婷
张邢
赵林林
Original Assignee
浙江银轮机械股份有限公司
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Application filed by 浙江银轮机械股份有限公司 filed Critical 浙江银轮机械股份有限公司
Publication of WO2022217956A1 publication Critical patent/WO2022217956A1/fr

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    • 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
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

Definitions

  • the present application relates to the technical field of air-conditioning equipment, and in particular, to an impeller and an automotive air-conditioning blower.
  • blower impeller structure As the core component of automotive air conditioners, the optimization of the blower impeller structure is of critical significance to the performance improvement of automotive air conditioners. With the gradual improvement of the requirements for automobile air conditioners, the performance requirements of blowers are becoming more and more demanding. Large air volume, high efficiency, low noise and small size have gradually become the development trend of automobile air conditioner blower impellers.
  • Traditional automotive air conditioners generally use centrifugal impellers with forward-bending blades. The center molding line of the blade is an arc curve. After the molding line is thickened, it is stretched to a certain length in the direction perpendicular to the molding surface, that is, the blade is formed.
  • the blades of the blower impeller are only formed by arc-shaped axial stretching, but in actual flow, the flow field structure in the impeller is relatively complex, and the traditional impeller is not conducive to the development of the internal flow field. It will cause a certain amount of energy loss, thereby reducing the overall efficiency of the blower.
  • the traditional impeller is not conducive to the development of the internal flow field, and will cause a certain amount of energy loss, thereby reducing the overall efficiency of the blower.
  • the application provides an impeller and an automotive air-conditioning blower. .
  • the impeller may include a wheel cover, a blade and a wheel hub that are fixedly connected in sequence, so that the blades are located between the wheel cover and the wheel hub in the axial direction of the wheel hub. Meanwhile, the blade may be a backward curved blade, and the blade may have a forward swept portion; the impeller may be applied to an automobile air conditioner.
  • the impeller may be an axial-radial flow closed impeller that guides airflow to enter axially and to flow radially out.
  • the swept angle of the swept portion may be ⁇ , and 81° ⁇ 86°.
  • the swept angle of the swept portion may be ⁇ , and ⁇ is 83°.
  • the blade outlet angle of the blade may be ⁇ , and 60° ⁇ 70°.
  • the blade outlet angle of the blade may be ⁇ , and ⁇ is 65°.
  • the blade root radius of the blade at the inlet may be R h
  • the blade tip radius at the inlet may be R s
  • the root radius of the blade at the inlet may be Rh
  • the tip radius at the inlet may be R s
  • Rh /R s 0.37.
  • the angle between the tangential direction of the blade shape of the blade tip of the blade at the inlet and the rotation direction of the impeller at the blade tip may be ⁇ 1 , and 56° ⁇ 1 ⁇ 64°.
  • the impeller outlet width of the impeller can be b2, and b2 can be calculated by formula (1), and the formula (1) is:
  • u 2 can be calculated by formula (2), and the formula (2) is:
  • n is the impeller speed.
  • the thickness of the blade at the inlet of the impeller may be ⁇ 1 , where 0.8mm ⁇ 1 ⁇ 1.5mm.
  • the thickness of the blades at the outlet of the impeller may be ⁇ 2 , and 1.3 mm ⁇ 2 ⁇ 2.5 mm.
  • the number of the blades may be 19 or 23; the blade root radius of the blades at the inlet may be 28.8 mm; the tip radius of the blades at the inlet may be 72 mm;
  • the blade angle at the tip of the blade can be 62°, and the blade angle at the root of the blade at the inlet can be 37°;
  • the impeller outlet width of the impeller can be 25mm, and the impeller outlet blade angle of the impeller can be 65°, the impeller outlet radius of the impeller may be 92.1 mm;
  • the axial length of the impeller may be 40.2 mm.
  • automotive air-conditioning blower may include an impeller as provided in the present application.
  • the impeller adopts space-distorted backward curved blades. After the accelerated air enters the impeller, the degree of fit with the blades is relatively high, and the energy added to the airflow in the impeller is mainly converted into pressure energy, ensuring that The high-efficiency requirements are met; the swept part of the blade at the inlet is beneficial to reduce the aerodynamic noise generated after the airflow hits the impeller.
  • FIG. 1 is a schematic three-dimensional structure diagram of an embodiment of an impeller provided in an embodiment of the present application
  • Fig. 2 is a right side structural schematic diagram of an embodiment of the impeller provided by the embodiment of the present application;
  • FIG. 3 is a schematic front view structure diagram of an embodiment of the impeller provided in the embodiment of the present application.
  • Fig. 4 is the sectional view at A-A place in Fig. 3;
  • Fig. 5 is a partial three-dimensional structural schematic diagram of an embodiment of the impeller provided in the embodiment of the present application.
  • FIG. 6 is a partial front structural schematic diagram of an embodiment of the impeller provided in the embodiment of the present application.
  • FIG. 7 is a schematic three-dimensional structural diagram of an embodiment of the blade provided by the embodiment of the application.
  • FIG. 8 is a schematic front view structure diagram of an embodiment of the blade provided in the embodiment of the present application.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • an impeller which may include a wheel cover 300 , blades 200 and a hub 100 that are fixedly connected in sequence, so that the blades 200 Located between the wheel cover 300 and the hub 100 in the axial direction of the hub 100, the blade 200 may be a backward curved blade, and the blade 200 may have a forward sweep; the impeller may be applied to Car Air Conditioner.
  • a shaft hole 400 for connecting the drive shaft may be formed on the front cover.
  • the impeller adopts space-distorted backward-curved blades. After the accelerated air enters the impeller, it has a high degree of fit with the blade 200. The energy added to the airflow in the impeller is mainly converted into pressure energy, which ensures high efficiency. Requirements: The swept portion 210 of the blade 200 at the inlet is beneficial to reduce the aerodynamic noise generated after the airflow hits the impeller.
  • the impeller may be an axial-radial flow closed impeller that guides airflow to enter axially and to flow radially out.
  • the forward sweep angle of the forward sweep portion 210 may be ⁇ , and 81° ⁇ 86°.
  • the forward sweep angle of the forward sweep portion 210 may be ⁇ , and ⁇ may be 83°.
  • the blade outlet angle of the blade 200 may be ⁇ , and 60° ⁇ 70°.
  • the blade outlet angle of the blade 200 may be ⁇ , and ⁇ may be 65°.
  • the blade may have a blade tip 211 and a blade root 220.
  • the blade root radius of the blade 200 at the inlet may be R h
  • the blade tip radius at the inlet may be R s
  • 0.35 ⁇ R h /R s ⁇ 0.4 0.35 ⁇ R h /R s ⁇ 0.4 .
  • the inlet mentioned in the embodiments of the present application refers to the inlet of the impeller.
  • the root radius of the blade 200 at the inlet may be Rh
  • the tip radius at the inlet may be R s
  • Rh /R s 0.37.
  • the angle between the tangential direction of the blade shape of the blade tip of the blade 200 at the inlet and the rotation direction of the impeller at the blade tip may be ⁇ 1 , and 56° ⁇ 1 ⁇ 64°.
  • the impeller outlet width of the impeller can be b2, and b2 can be calculated by formula (1), and the formula (1) is:
  • u 2 can be calculated by formula (2), and the formula (2) is:
  • n is the impeller speed.
  • the thickness of the blade 200 at the inlet of the impeller may be ⁇ 1 , and 0.8mm ⁇ 1 ⁇ 1.5mm.
  • the thickness of the blade 200 at the outlet of the impeller may be ⁇ 2 , and 1.3 mm ⁇ 2 ⁇ 2.5 mm.
  • the number of the blades 200 may be 19 or 23; the blade root radius of the blades 200 at the inlet may be 28.8 mm; the tip radius of the blades 200 at the inlet may be 72 mm; The blade angle at the tip of the blade 200 may be 62°, and the blade angle at the root of the blade 200 at the inlet may be 37°; the impeller outlet width of the impeller may be 25mm, and the impeller of the impeller The outlet blade angle may be 65°, the impeller outlet radius of the impeller may be 92.1 mm, and the axial length of the impeller may be 40.2 mm.
  • inventions of the present application provide an automobile air conditioner blower, and the automobile air conditioner blower may include the impeller provided in the embodiments of the present application.
  • the impeller adopts space-distorted backward-curved blades. After the accelerated air enters the impeller, the degree of fit with the blade 200 is relatively high, and the energy added to the airflow in the impeller mainly becomes pressure energy. The requirement of high efficiency is ensured; the swept part 210 of the blade 200 at the inlet is beneficial to reduce the aerodynamic noise generated after the airflow hits the impeller.
  • the application also provides an application example of the impeller and the automobile air-conditioning blower:
  • blower impeller structure As the core component of automotive air conditioners, the optimization of the blower impeller structure is of critical significance to the performance improvement of automotive air conditioners.
  • an axial-radial closed impeller for automobile air-conditioning blower is designed, and the blades are space-distorted backward-curved blades.
  • the required target air volume can be achieved through the smaller axial size of the impeller, and at the same time, under the operating conditions, the flow field in the impeller is guaranteed to be more stable, the overall efficiency of the automotive air-conditioning blower is improved, and the noise of the automotive air-conditioning assembly is reduced.
  • the impeller used in the automobile air-conditioning blower involved in the present application is of an axial radial flow closed structure.
  • the impeller includes a wheel cover, blades and a wheel hub, and the blades are arranged between the wheel cover and the wheel hub.
  • the forward-swept blade structure ensures that the airflow enters the impeller more uniformly and stably; because the blades are space-distorted backward-curved blades, the airflow in the impeller channel is urged to fit with the blades; the airflow flows to the impeller At the outlet, the stability of the flow field at the outlet of the impeller is improved due to the backward curved structure of the blade.
  • the turning loss of the airflow in the backward curved impeller is relatively small, and the efficiency of the entire impeller is also improved.
  • the axial-radial closed back-curved impeller in this application example can fully achieve the required air volume according to the general design conditions, and at the same time improve the work efficiency, and the back-curved impeller also widens the flow range of normal operation. , can optimize the internal flow field, so as to achieve the effect of reducing noise.
  • This application example provides a blower impeller for an automotive air conditioner, including a hub, a blade and a wheel cover.
  • the blade and the wheel cover are an integral structure, and the blade and the hub are fixed together.
  • a shaft hole for installing the motor is arranged on the wheel hub for fixed connection with the motor shaft.
  • the impeller of the blower for automobile air conditioner is an axial-radial closed impeller structure that guides the airflow to enter in the axial direction and flow out radially.
  • the blades at the inlet of the impeller are of forward-swept structure, which ensures that the airflow can be guided into the impeller in the predetermined direction with the minimum impact loss. ⁇ 70°.
  • the radius of the blade root at the inlet is R h
  • the radius of the blade tip at the inlet is R s
  • 0.35 ⁇ R h /R s ⁇ 0.4 is guaranteed;
  • the number of blades is 19 or 23; an impeller inlet is designed according to the boundary conditions.
  • the blade angle at the blade tip is 62°
  • the blade angle at the blade root is 37°.
  • the outlet width is 25mm
  • the blade angle of the impeller outlet is 65°
  • the outlet radius is 92.1mm
  • the axial length of the impeller is 40.2mm.
  • the efficiency can reach more than 80% under the design conditions.
  • the working conditions of 0.4Q ⁇ 1.2Q under different flow rates are simulated and analyzed, and the efficiency remains above 79%.
  • the pressure rise under each working condition It can also fully meet the requirements of 1000Pa. Therefore, it is arranged in the air conditioner of the car, which can also meet the requirements of the passengers in the car for the air volume of the air conditioner.
  • the present application relates to the technical field of air-conditioning equipment, and in particular, to an impeller and an automotive air-conditioning blower, comprising a wheel cover, a blade and a hub that are fixedly connected in sequence, so that the blade is positioned on the wheel in the axial direction of the hub. Between the cover and the hub, the blade is a backward curved blade, and the blade has a forward swept portion; the impeller is applied to an automobile air conditioner.
  • the purpose of the present application is to provide an impeller and a vehicle for the problem that the current structure of the flow field in the impeller is relatively complex, the traditional impeller is not conducive to the development of the internal flow field, and will cause a certain energy loss, thereby reducing the overall efficiency of the blower.
  • Air conditioner blower Air conditioner blower.
  • impeller and automotive air conditioner blower of the present application is reproducible and can be used in a variety of industrial applications.
  • the impeller and the automotive air-conditioning blower of the present application can be applied to the technical field of air-conditioning equipment, such as the field of automotive air-conditioning equipment.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Hélice et soufflante de climatiseur de véhicule se rapportant au domaine technique des dispositifs de climatisation et comprenant un couvercle (300), des pales (200) et un moyeu (100) qui sont reliés de manière fixe en séquence, de sorte que les pales (200) sont situées entre le couvercle (300) et le moyeu (100) dans la direction axiale du moyeu (100). Les pales (200) sont des pales incurvées vers l'arrière, et chaque pale (200) est dotée d'une partie balayée vers l'avant (210) ; la turbine est appliquée à un climatiseur de véhicule. L'objectif de la solution est de fournir une hélice et une soufflante de climatiseur de véhicule en vue du problème de réduction de l'efficacité globale de ventilateurs en raison de la perte d'énergie provoquée par les structures de champ d'écoulement dans des turbines actuelles qui sont complexes et des turbines classiques ne conduisent pas au développement de champs d'écoulement internes.
PCT/CN2021/138411 2021-04-13 2021-12-15 Hélice et soufflante de climatiseur de véhicule WO2022217956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110397523.4 2021-04-13
CN202110397523.4A CN112943687A (zh) 2021-04-13 2021-04-13 叶轮及汽车空调鼓风机

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WO2022217956A1 true WO2022217956A1 (fr) 2022-10-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112943687A (zh) * 2021-04-13 2021-06-11 浙江银轮机械股份有限公司 叶轮及汽车空调鼓风机

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1386983A (zh) * 2002-06-06 2002-12-25 孙敏超 离心式叶轮机械中的一种高效率后弯叶片叶轮
CN2767722Y (zh) * 2004-10-20 2006-03-29 深圳市风百胜风机制造有限公司 一种高效低噪汽车空调冷凝轴流风机
JP2010229871A (ja) * 2009-03-26 2010-10-14 Mitsubishi Heavy Ind Ltd 遠心ファン及び車両用空調装置
CN204476857U (zh) * 2015-03-20 2015-07-15 陈铭钦 离心式通风机用叶轮机构
CN111156191A (zh) * 2020-01-20 2020-05-15 珠海格力电器股份有限公司 叶轮、混流风机以及空调器
CN211525182U (zh) * 2019-11-14 2020-09-18 浙江盾安轨道交通设备有限公司 弯掠叶片及轴流风机
CN112918218A (zh) * 2021-04-13 2021-06-08 浙江银轮机械股份有限公司 空调装置及汽车
CN112943687A (zh) * 2021-04-13 2021-06-11 浙江银轮机械股份有限公司 叶轮及汽车空调鼓风机
CN112943657A (zh) * 2021-04-13 2021-06-11 浙江银轮机械股份有限公司 轴径流鼓风机及空调装置
CN214998428U (zh) * 2021-04-13 2021-12-03 浙江银轮机械股份有限公司 叶轮及汽车空调鼓风机

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1386983A (zh) * 2002-06-06 2002-12-25 孙敏超 离心式叶轮机械中的一种高效率后弯叶片叶轮
CN2767722Y (zh) * 2004-10-20 2006-03-29 深圳市风百胜风机制造有限公司 一种高效低噪汽车空调冷凝轴流风机
JP2010229871A (ja) * 2009-03-26 2010-10-14 Mitsubishi Heavy Ind Ltd 遠心ファン及び車両用空調装置
CN204476857U (zh) * 2015-03-20 2015-07-15 陈铭钦 离心式通风机用叶轮机构
CN211525182U (zh) * 2019-11-14 2020-09-18 浙江盾安轨道交通设备有限公司 弯掠叶片及轴流风机
CN111156191A (zh) * 2020-01-20 2020-05-15 珠海格力电器股份有限公司 叶轮、混流风机以及空调器
CN112918218A (zh) * 2021-04-13 2021-06-08 浙江银轮机械股份有限公司 空调装置及汽车
CN112943687A (zh) * 2021-04-13 2021-06-11 浙江银轮机械股份有限公司 叶轮及汽车空调鼓风机
CN112943657A (zh) * 2021-04-13 2021-06-11 浙江银轮机械股份有限公司 轴径流鼓风机及空调装置
CN214998428U (zh) * 2021-04-13 2021-12-03 浙江银轮机械股份有限公司 叶轮及汽车空调鼓风机

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