WO2021017144A1 - 风轮装置以及吹风设备 - Google Patents

风轮装置以及吹风设备 Download PDF

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Publication number
WO2021017144A1
WO2021017144A1 PCT/CN2019/108664 CN2019108664W WO2021017144A1 WO 2021017144 A1 WO2021017144 A1 WO 2021017144A1 CN 2019108664 W CN2019108664 W CN 2019108664W WO 2021017144 A1 WO2021017144 A1 WO 2021017144A1
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WO
WIPO (PCT)
Prior art keywords
air duct
volute
side plate
wind wheel
heating element
Prior art date
Application number
PCT/CN2019/108664
Other languages
English (en)
French (fr)
Inventor
王庆
何振斌
杜文波
杨鑫
陈汉飞
孙志平
李名毕
Original Assignee
广东美的环境电器制造有限公司
美的集团股份有限公司
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 广东美的环境电器制造有限公司, 美的集团股份有限公司 filed Critical 广东美的环境电器制造有限公司
Priority to US17/624,075 priority Critical patent/US11867194B2/en
Priority to EP19939294.5A priority patent/EP3961042A4/en
Priority to JP2022502823A priority patent/JP2022541501A/ja
Publication of WO2021017144A1 publication Critical patent/WO2021017144A1/zh

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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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00457—Ventilation unit, e.g. combined with a radiator
    • B60H1/00471—The ventilator being of the radial type, i.e. with radial expulsion of the air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • B60H1/2225—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • B60H2001/0035—Heat exchangers for air-conditioning devices movable in and out of the air stream

Definitions

  • This application relates to the field of air conditioning technology, and in particular to a wind wheel device and a blowing device.
  • a movable heating element is installed inside the cooling fan, which relies on a mobile device to drive the heating element to translate, and then the cold/hot air flow is switched; the translation requirements of the heating element There is enough internal space to make the blowing device bulky.
  • the embodiments of the present application expect to provide a wind wheel device and a blowing device with a compact structure.
  • a wind wheel device including a housing, a heating element unit, and a wind wheel.
  • An air duct is formed in the housing, and the air duct includes a connected first wind.
  • a second air channel the wind wheel is arranged in the first air channel, the second air channel has an avoiding area, the heating element unit is rotatably arranged in the second air channel, and the heating element
  • the unit includes a shielding state for shielding the second air duct and an avoiding state for avoiding the second air duct. When the heating element unit is in the avoiding state, the heating element unit is accommodated in the avoiding area .
  • the avoidance area is formed by the first side of the second air duct protruding outward.
  • the surface of the heating element unit facing away from the first side of the second air duct to the surface of the second air duct opposite to the first side The minimum width C between the second sides of is greater than or equal to the width of the end of the first air duct.
  • the rotation axis of the heating element unit is parallel to the rotation axis of the wind wheel.
  • the ratio of the width at the head end of the first air duct along the airflow direction to the width at the end is 1.6-2.
  • the housing includes a volute tongue and a volute that are spaced apart, the first air duct is formed between the volute and the volute, and the volute and the outer edge of the wind wheel
  • the spacing E is 2-4mm.
  • the housing includes a volute tongue and a volute that are arranged at intervals, the first air passage is formed between the volute and the volute, and the inner surface of the volute is connected to the outer surface of the wind wheel.
  • the distance D between the edges gradually increases along the airflow direction.
  • the shape of the inner surface of the volute is an involute, and the involute is based on the wind wheel.
  • the housing includes a first end plate, a first side plate, a second end plate, and a second side plate, the first side plate and the second side plate are spaced apart, and the first end plate Connected between the first end of the first side plate and the first end of the second side plate, and the second end plate is connected to the second end of the first side plate and the second side Between the second ends of the plates, the first end plate, the first side plate, the second end plate and the second side plate jointly enclose the air duct; the heating element unit rotates And the wind wheel is rotatably installed on the first end plate and the second end plate.
  • the first side plate includes a volute and a sub-side plate located on the same side of the air duct, the volute corresponds to the first air duct, and the sub-side plate corresponds to the second air duct;
  • the volute and the sub-side plate are of split structure; or, the volute and the sub-side plate are integrally formed.
  • volute and the sub-side plate are of a split structure
  • one of the volute and the sub-side plate is formed with a buckle, and the other is formed with a slot, and the buckle is inserted into the card. In the slot.
  • the first end plate is formed with an open groove, the open groove extends to the edge of the first end plate and an opening is formed at the edge of the first end plate;
  • the heating element unit includes A heat generating main body part and a shaft part located at one end of the heat generating main part, the shaft part can be disposed into the open groove from the opening;
  • the wind wheel device includes a driving mechanism, the driving mechanism and the shaft part Drive connection.
  • the wind turbine device further includes a shaft sleeve, and an arc-shaped hole is formed at an end of the open slot facing away from the opening, and the shaft sleeve is disposed in the arc-shaped hole and is connected to the arc-shaped hole.
  • the shaft sleeve is sleeved on the shaft portion;
  • the driving mechanism includes a power shaft, which extends into the shaft sleeve and is drivingly connected with the shaft portion.
  • the housing further includes an elastic buckle; at least one elastic buckle is provided at the edge of the first side plate; and/or, at least one elastic buckle is formed at the edge of the second side plate buckle.
  • a second aspect of the embodiments of the present application provides a blowing device, including a casing and the above-mentioned wind wheel device; the wind wheel device is arranged in the casing, and an air inlet and an air outlet are formed on the casing.
  • the air duct communicates with the air inlet and the air outlet.
  • the wind wheel device of the embodiment of the present application is provided with a first air duct and a second air duct in sequence, the heating element unit is rotatably arranged in the second air duct, and the second air duct has an avoiding area, and the heating element unit is located in In the avoiding state, the heating element unit rotates into the avoiding area, so the heating element unit only needs to occupy a small space, making the wind wheel device compact.
  • Figure 1 is a schematic structural diagram of a wind turbine device according to an embodiment of the application.
  • FIG. 2 is a schematic diagram from another perspective of the structure shown in FIG. 1, wherein part of the structure is an exploded schematic diagram;
  • FIG. 3 is a schematic diagram of another view of the structure shown in FIG. 1;
  • FIG. 4 is a schematic diagram of the cross-sectional view taken along the direction A-A in FIG. 3 rotated 90° counterclockwise, in which the heating element unit is in a shielded state;
  • Figure 5 is a schematic view at the same cross-sectional position as Figure 4, in which the heating element unit is in an avoiding state;
  • Fig. 6 is a schematic structural diagram of the wind wheel device shown in Fig. 1 from another perspective;
  • Fig. 7 is a partial enlarged view at H of Fig. 2;
  • orientation or positional relationship of "upper” and “lower” is based on the orientation or positional relationship shown in FIG. 3. It should be understood that these terms of orientation are only for the convenience of describing the application and simplifying the description. , Rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the application.
  • the application of the wind wheel device to a heater is taken as an example for description.
  • an embodiment of the present application provides a wind wheel device, including a housing 1, a heating element unit 2 and a wind wheel 3.
  • the housing 1 is formed with an air duct 11, and the air duct 11 includes a The first air duct 111 and the second air duct 112, the wind wheel 3 is arranged in the first air duct 111, and the heating element unit 2 is rotatably arranged in the second air duct 112, that is, the airflow direction in the air duct 11 is from the first One air duct 111 flows to the second air duct 112 (refer to the arrow direction in FIGS. 4 and 5).
  • the second air duct 112 has an avoiding area 112b.
  • the heating element unit 2 includes a shielding state for shielding the second air duct 112 and an avoiding first The avoidance state of the second air duct 112. It is understandable that, referring to FIG. 4, the avoidance area 112b can be formed by protruding outward from the first side of the second air duct 112, and is integrally injection-molded. The process is simple and beautiful.
  • the heating element unit 2 when the heating element unit 2 rotates to an angle that blocks the second air duct 112, the heating element unit 2 is in a shielding state.
  • the wind wheel 3 drives the airflow into the wind from the first air duct 111 In the duct 11, the airflow passes through the heating element unit 2 to complete the heating and heating, and is discharged from the second air duct 112 to complete the hot air blowing function of the heater; please refer to Figure 5, when the heating element unit 2 rotates to avoid the second air duct 112 Angle, the heating element unit 2 is in a evasive state. In this state, the wind wheel 3 drives the airflow from the first air duct 111 into the air duct 11, and is discharged from the second air duct 112, thereby completing the function of blowing the normal temperature wind of the heater .
  • the heating element unit 2 is rotatably arranged in the second air duct 112, so that the heating body unit 2 only needs to occupy a small space, which can make the wind wheel device compact;
  • the heating element unit 2 is housed in the avoiding area 112b, so that the airflow can be directly discharged without basically flowing through the heating element unit 2, effectively reducing the wind resistance and increasing the air volume and speed of the heater. Makes the performance of the blowing equipment good.
  • the rotation axis of the heating element unit 2 is parallel to the rotation axis of the wind wheel 3 to prevent the heating element unit 2 from tilting in the air duct 11.
  • the heating element unit 2 Either all are in the shielded state, or all are in the avoiding state, and there will not be a situation where the part of the heating element unit 2 is in the shielding state and the rest of the heating element unit 2 is in the avoiding state.
  • the ratio of the width d1 at the head end of the first air duct 111 along the airflow direction to the width d2 at the end is 1.6-2, forming a large inlet and a small outlet
  • the airflow enters from the first end of the wider first air duct 111.
  • the flow rate is slow and the noise is low. It is driven by the wind wheel 3 and is discharged from the end of the first air duct 111.
  • the wind speed of the heater is driven by the wind wheel 3 and is discharged from the end of the first air duct 111.
  • the housing 1 includes a volute tongue 111a and a volute 111b that are spaced apart, a first air passage 111 is formed between the volute tongue 111a and the volute 111b, and the volute tongue 111a and
  • the distance E between the outer edges of the wind wheel 3 should not be too large or too small; if the distance E is too large, the airflow enters from the first air duct 111, and the wind wheel 3 rotates clockwise in Fig.
  • the distance E is set to 2-4mm, While ensuring stable performance, more air flows to the second air duct 112, increasing the air volume and speed.
  • the distance D between the inner surface of the volute 111b and the outer edge of the wind wheel 3 gradually increases along the airflow direction, so that the outlet side along the airflow direction is always It expands outward to form a diffuser air duct, which increases the static pressure. Due to the narrow tube effect, the wind speed flowing through the impeller increases, increasing the output efficiency, and finally ensuring large air volume and low noise.
  • the shape of the inner surface of the volute 111b can be involute, gradually
  • the opening line takes the wind wheel 3 as the base circle, and the line shape of the involute line is more in line with the design performance of hydrodynamics, so that the air flow can flow more smoothly along the inner surface of the volute 111b.
  • the housing 1 includes a first end plate 12, a first side plate 13, a second end plate 14 and a second side plate 15.
  • the first side plate 13 and the second side plate The two side plates 15 are arranged at intervals, the first end plate 12 is connected between the first end of the first side plate 13 and the first end of the second side plate 15, and the second end plate 14 is connected to the first end of the first side plate 13
  • the heating element unit 2 rotates Ground is installed on the first end plate 12 and the second end plate 14.
  • the wind wheel 3 is rotatably installed on the first end plate 12 and the second end plate 14 so as to drive the airflow in the first air duct 111 to the second wind
  • the passage 112 further realizes the hot air blowing function and the normal temperature air blowing function of the above-mentioned wind wheel device in the heater. Please continue to refer to FIG.
  • the first side plate 13 includes a volute 111b and a sub-side plate 112c on the same side of the air duct 11, where the volute 111b corresponds to the first air duct 111, that is, the volute 111b and the volute tongue 111a form a second An air duct 111; the sub-side plate 112c corresponds to the second air duct 112, that is, the second air duct 112 is formed by the sub-side plate 112c and the second side plate 15;
  • the volute 111b and the sub-side plate 112c can be of a split structure or integrally formed; when the volute 111b and the sub-side plate 112c are of a split structure, they are detachably connected, and the volute 111b and the sub-side plate 112c are One of them is formed with a buckle 113, and the other is formed with a buckle 114 into which the buckle 113 is clamped, that is, the volute 111b and the sub-side plate 112c are clamped, the structure is reliable and the assembly is simple. It is understandable that other methods such as screw connection or interference assembly may also be adopted between the volute 111b and the sub-side plate 112c, which will not be repeated here.
  • the volute 111b and the sub-side plate 112c are integrally formed, they can be integrally injection-molded by a mold, eliminating the need for assembly procedures.
  • the first end plate 12 is formed with an open groove 121, the open groove 121 extends to the edge of the first end plate 12, and an opening 122 is formed at the edge of the first end plate 12 That is to say, the open groove 121 penetrates the shell 1 and is located at the edge of the first end plate 12; the heating element unit 2 includes a heating main body portion 21 and a shaft portion 22 located at one end of the heating main body portion 21, and the shaft portion 22 can be handled through the opening 122 Into the open groove 121 so that the heating main body 21 is pushed flatly into the second air duct 112.
  • the wind wheel device includes a driving mechanism 23, which is drivingly connected to the shaft 22 to drive the heating main body 21 to rotate in the second air duct 112; specifically, the driving mechanism 23 drives the heating main body 21 to rotate around the shaft 22 The axis rotates.
  • the driving mechanism 23 may be a motor, which has low cost and stable performance.
  • the wind turbine device further includes a shaft sleeve 24, which is sleeved on the shaft portion 22 to limit the circumferential direction of the shaft portion 22, thereby preventing the drive mechanism 23
  • the shaft portion 22 swayed in the lateral direction to produce noise and abnormal noise
  • the end of the open slot 121 back and the exit port 122 is formed with an arc-shaped hole 123
  • the sleeve 24 is arranged in the arc-shaped hole 123 and It is adapted to the arc-shaped hole 123, that is, the outer diameter of the sleeve 24 is roughly the same as the inner diameter of the arc-shaped hole 123, so as to perform better circumferential positioning of the sleeve 24
  • the drive mechanism 23 It is fixedly connected to the first end plate 12 so that the drive mechanism 23 abuts on the side of the sleeve 24 away from the heating main body portion 21,
  • the shaft sleeve 24 can be positioned and installed without tightening the screw or the like, so that The heating element unit 2 and the air duct 11 are fixed without screws. On the one hand, the number of parts is reduced, and the quality problems caused by more parts are reduced. On the other hand, the assembly process is simplified and the cost is reduced.
  • the driving mechanism 23 includes a power shaft (not shown in the figure). The power shaft extends into the sleeve 24 and is drivingly connected with the shaft 22.
  • the driving mechanism 23 and the first end plate 12 can be fixed by bolts.
  • This design requires a positioning screw hole 17 to be added to the housing 1, and a guide post 18 can also be provided to facilitate the driving mechanism
  • the bolt connection is carried out after the positioning of 23, which makes the assembly convenient; of course, the fixing of the driving mechanism 23 and the first end plate 12 can also adopt other fixing methods such as snap connection.
  • the inner wall of the arc-shaped hole 123 is formed with a step surface 124; the shaft sleeve 24 forms a shaft shoulder 241, and the shaft shoulder 241 abuts on the step Face 124 on.
  • the shaft sleeve 24 is supported by the step surface 124, and the bottom end of the shaft sleeve 24 abuts on the housing 1 to avoid rotation between the shaft sleeve 24 and the heating element unit 2, thereby reducing the rotation resistance of the heating element unit 2.
  • the housing 1 further includes an elastic buckle 16;
  • At least one elastic buckle 16 is provided at the edge of the first side plate 13, and/or at least one elastic buckle 16 is formed at the edge of the second side plate 15, which is convenient for combing the wiring harness of the internal components of the blowing device.
  • the second aspect of the embodiments of the present application provides a blowing device, including a casing (not shown in the figure) and any one of the above-mentioned wind wheel devices; the wind wheel device is arranged in the casing, and an air inlet is formed on the casing And the air outlet, the air duct 11 communicates with the air inlet and the air outlet, specifically, the first air duct 111 communicates with the air inlet, and the second air duct 112 communicates with the air outlet.
  • the blowing device may be a cooling fan, a heater, an air conditioner or an air purifier, which is not limited here.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

一种风轮装置以及吹风设备，风轮装置包括壳体（1）、发热体单元（2）以及风轮（3），所述壳体（1）内形成有风道（11），所述风道（11）包括顺接的第一风道（111）以及第二风道（112），所述风轮（3）设置于所述第一风道（111）内，所述第二风道（112）具有避让区域（112b），所述发热体单元（2）转动地设置于所述第二风道（112）内，所述发热体单元（2）包括遮挡所述第二风道（112）的遮挡状态以及避让所述第二风道（112）的避让状态，当所述发热体单元（2）处于避让状态的条件下，所述发热体单元（2）容置于所述避让区域（112b）内。该风轮装置以及吹风设备结构紧凑。

Description

风轮装置以及吹风设备
相关申请的交叉引用
本申请基于申请号为201921236063.1、申请日为2019年8月1日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及空气调节技术领域，尤其涉及一种风轮装置以及吹风设备。
背景技术
以冷风扇为例，相关技术中，为实现冷/热气流切换，在冷风扇内部安装有活动的发热体，依靠移动装置来驱动发热体平移，进而冷/热气流切换；发热体的平移要求有足够的内部空间，使得吹风设备的体积庞大。
发明内容
有鉴于此，本申请实施例期望提供一种结构紧凑的风轮装置以及吹风设备。
为达到上述目的，本申请实施例的一方面提供一种风轮装置，包括壳体、发热体单元以及风轮，所述壳体内形成有风道，所述风道包括顺接的第一风道以及第二风道，所述风轮设置于所述第一风道内，所述第二风道具有避让区域，所述发热体单元转动地设置于所述第二风道内，所述发热体单元包括遮挡所述第二风道的遮挡状态以及避让所述第二风道的避让状态，当所述发热体单元处于避让状态的条件下，所述发热体单元容置于所述避让区域内。
进一步地，所述避让区域由所述第二风道的第一侧向外突出形成。
进一步地，在所述发热体单元处于避让状态的条件下，所述发热体单元的背离所述第二风道的第一侧的表面至所述第二风道的与所述第一侧相对的第二侧之间的最小宽度C大于或等于所述第一风道末端的宽度。
进一步地，所述发热体单元的转动轴线与所述风轮的转动轴线平行。
进一步地，所述第一风道的沿气流方向的首端处的宽度与末端处的宽度的比值为1.6-2。
进一步地，所述壳体包括间隔设置的蜗舌和蜗壳，所述蜗舌和所述蜗壳之间形成所述第一风道，所述蜗舌与所述风轮的外缘之间的间距E为2-4mm。
进一步地，所述壳体包括间隔设置的蜗舌和蜗壳，所述蜗舌和所述蜗壳之间形成所述第一风道，所述蜗壳的内表面与所述风轮的外缘之间的间距D，沿气流方向逐渐增大。
进一步地，所述蜗壳的内表面的形状为渐开线，所述渐开线以所述风轮为基圆。
进一步地，所述壳体包括第一端板、第一侧板、第二端板以及第二侧板，所述第一侧板与所述第二侧板间隔设置，所述第一端板连接于所述第一侧板的第一端和所述第二侧板的第一端之间，所述第二端板连接于所述第一侧板的第二端和所述第二侧板的第二端之间，所述第一端板、所述第一侧板、所述第二端板以及所述第二侧板共同围设成所述风道；所述发热体单元转动地安装在所述第一端板和所述第二端板上，所述风轮转动地安装在所述第一端板和所述第二端板上。
进一步地，所述第一侧板包括位于所述风道同一侧的蜗壳和子侧板，所述蜗壳对应所述第一风道，所述子侧板对应所述第二风道；所述蜗壳和子侧板为分体式结构；或者，所述蜗壳和子侧板一体成型。
进一步地，当所述蜗壳和子侧板为分体式结构时，所述蜗壳和子侧板的其中之一形成有卡扣，其中另一形成有卡槽，所述卡扣卡入所述卡槽内。
进一步地，所述第一端板形成有开放槽，所述开放槽延伸至所述第一端板的边缘处且在所述第一端板的边缘处形成有开口；所述发热体单元包括发热主体部以及位于所述发热主体部一端的轴部，所述轴部能够从所述开口处置入所述开放槽内；所述风轮装置包括驱动机构，所述驱动机构与所述轴部驱动连接。
进一步地，所述风轮装置还包括轴套，所述开放槽的背离所述开口的末端形成有圆弧形孔，所述轴套设置于所述圆弧形孔内且与所述圆弧形孔适配，所述轴套套接于所述轴部上；所述驱动机构包括动力轴，所述动力轴伸入所述轴套内且与所述轴部驱动连接。
进一步地，所述壳体还包括弹性扣；所述第一侧板的边缘处设置有至少一所述弹性扣；和/或，所述第二侧板的边缘处形成有至少一所述弹性扣。
本申请实施例的第二方面提供一种吹风设备，包括外壳以及上述的风轮装置；所述风轮装置设置于所述外壳内，所述外壳上形成有进气口和出气口，所述风道与所述进气口和所述出气口连通。
本申请实施例的风轮装置通过设置顺接的第一风道以及第二风道，发热体单元转动地设置于所述第二风道内，并且第二风道具有避让区域，发热体单元处于避让状态的条件下，发热体单元转动到避让区域内，因此发热体单元只需占用较小的空间，使得风轮装置结构紧凑。
附图说明
图1为本申请一实施例的风轮装置的结构示意图；
图2为图1所示结构的另一视角的示意图，其中，部分结构为爆炸示意图；
图3为图1所示结构的再一视角的示意图；
图4为沿图3中A-A方向的剖视图逆时针转动90°后的示意图，其中，发热体单元处于遮挡状态；
图5为与图4处于相同剖视位置的示意图，其中，发热体单元处于避让状态；
图6为图1所示风轮装置再一其他视角的结构示意图；
图7为图2的H处的局部放大图；
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的技术特征可以相互组合，具体实施方式中的详细描述应理解为本申请的解释说明，不应视为对本申请的不当限制。
在本申请实施例的描述中，“上”、“下”方位或位置关系为基于图3所示的方位或位置关系，需要理解的是，这些方位术语仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
为了便于描述，在本申请实施例中，以所述风轮装置应用于暖风机为例进行描述。
请参阅图1至图6，本申请实施例提供一种风轮装置，包括壳体1、发热体单元2以及风轮3，壳体1内形成有风道11，风道11包括顺接的第一风道111以及第二风道112，风轮3设置于第一风道111内，发热体单元2转动地设置于第二风道112内，即风道11内的气流方向是从第一风道111流向第二风道112(参照图4和图5中的箭头方向)，第二风道112具有避让区域112b，发热体单元2包括遮挡第二风道112的遮挡状态以及避让第二风道112的避让状态。可以理解的是，请参阅图4，避让区域112b可以由所述第二风道112的第一侧向外突出形成，一体注塑成型，工艺简单且美观。
具体地，请参阅图4，当发热体单元2转动至遮挡第二风道112的角度，发热体单元2处于遮挡状态，在此状态下，风轮3驱动气流从第一风道111进入风道11内，气流通过发热体单元2完成加热升温，并从第二风道112排出，完成暖风机的吹热风功能；请参阅图5，当发热体单元2转动至避让第二风道112的角度，发热体单元2处于避让状态，在此状态下，风轮3驱动气流从第一风道111进入风道11内，并从第二风道112排出，从而完成暖风机的吹常温风功能。
本申请实施例的风轮装置，将发热体单元2转动地设置于第二风道112内，使得发热体单元2只需占用较小的空间，能够使得风轮装置结构紧凑；再者，当发热体单元2处于避让状态的条件下，发热体单元2容置于避让区域112b内，使得气流基本不流经发热体单元2即可直接排出，有效降低风阻，提升暖风机的风量以及风速，使得吹风设备性能佳。在本申请实施例中，请参阅图5，在发热体单元2处于避让状态的条件下，发热体单元2的背离第二风道112的第一侧的表面至第二风道112的与第一侧相对的第二侧之间的最小宽度C大于或等于第一风道111末端的宽度f，从而使得气流从第一风道111进入第二风道112的有效流通面积是处于相等或者扩大状态，防止因有效流通面积缩小在第二风道112内引起风速以及风量变化。
在本申请实施例中，发热体单元2的转动轴线与风轮3的转动轴线平行，防止发热体单元2在风道11内倾斜，换言之，沿发热体单元2的轴向，发热体单元2要么全部处于遮挡状态，要么全部处于避让状态，而不会出现发热体单元2的部分是遮挡状态，发热体单元2的其余部分是避让状态的情况。
在本申请实施例中，请参阅图4和图5，第一风道111的沿气流方向的首端处的宽度d1与末端处的宽度d2的比值为1.6-2，形成进口大、出口小的结构，气流从较宽第一风道111的首端处进入，在满足风量的情况下， 流速慢，噪音小，经过风轮3驱动，从的第一风道111的末端处排出，满足暖风机的风速。
在本申请实施例中，请参阅图4和图5，壳体1包括间隔设置的蜗舌111a和蜗壳111b，蜗舌111a和蜗壳111b之间形成第一风道111，蜗舌111a与风轮3的外缘之间的间距E不宜过大或者过小；若间距E过大，气流从第一风道111进入，风轮3沿图4中的顺时针方向转动，第一风道111中的很大部分气流会再次被风轮3从间距E处带出第一风道111，影响气流进入第二风道112中，使得风量和风速受到影响；若间距E过小，会对各部分结构的装配误差以及风轮3转动过程中的晃动量要求高，否则容易引起蜗舌111a与风轮3干涉，发出异响；本申请实施例中，间距E设置为2-4mm，在确保性能稳定的同时，使得更多的气流流向第二风道112，增大了风量风速。
在本申请实施例中，请参阅图4和图5，蜗壳111b的内表面与风轮3的外缘之间的间距D，沿气流方向逐渐增大，使得沿气流方向的出口一侧始终是向外扩张，形成扩压风道，从而使得静压增大，由于狭管效应，流经叶轮的风速提高，增加了输出效率，最终确保风量大，且噪音低。请继续参阅图4和图5，为满足蜗壳111b的内表面与风轮3的外缘之间的间距D逐渐增大的需求，蜗壳111b的内表面的形状可为渐开线，渐开线以风轮3为基圆，渐开线的线型更加符合流体力学设计性能，使得气流能够更加顺畅地沿着蜗壳111b的内表面流动。
在本申请实施例中，请参阅图1至图5，壳体1包括第一端板12、第一侧板13、第二端板14以及第二侧板15，第一侧板13与第二侧板15间隔设置，第一端板12连接于第一侧板13的第一端和第二侧板15的第一端之间，第二端板14连接于第一侧板13的第二端和第二侧板15的第二端之间，第一端板12、第一侧板13、第二端板14以及第二侧板15共同围设成 风道11；发热体单元2转动地安装在第一端板12和第二端板14上，风轮3转动地安装在第一端板12和第二端板14上从而将第一风道111内的气流驱动到第二风道112，进而实现上述风轮装置在暖风机内的吹热风功能以及吹常温风功能。请继续参阅图1，第一侧板13包括位于风道11同一侧的蜗壳111b和子侧板112c，其中，蜗壳111b对应第一风道111，即由蜗壳111b和蜗舌111a形成第一风道111；子侧板112c对应第二风道112，即由子侧板112c和第二侧板15形成第二风道112；
具体地，蜗壳111b和子侧板112c可为分体式结构也可以是一体成型；当蜗壳111b和子侧板112c为分体式结构时，两者采用可拆卸连接，蜗壳111b和子侧板112c的其中之一形成有卡扣113，其中另一形成有卡槽114，卡扣113卡入卡槽114内，也就是说，蜗壳111b和子侧板112c卡接，结构可靠，装配简单。可以理解的是，蜗壳111b和子侧板112c之间还可以采用螺钉连接或过盈装配等其他方式，在此不一一赘述。当蜗壳111b和子侧板112c为一体成型时，两者可通过模具一体注塑成型，省去装配工序。
在本申请实施例中，请参阅图2，第一端板12形成有开放槽121，开放槽121延伸至第一端板12的边缘处且在第一端板12的边缘处形成有开口122，也就是说，开放槽121贯穿壳体1位于第一端板12的边缘；发热体单元2包括发热主体部21以及位于发热主体部21一端的轴部22，轴部22能够从开口122处置入开放槽121内，以使发热主体部21平推装入第二风道112内。
风轮装置包括驱动机构23，驱动机构23与轴部22驱动连接，以驱动发热主体部21在第二风道112内转动；具体地，驱动机构23驱动发热主体部21绕轴部22的转动轴线转动。
具体地，驱动机构23可为电机，成本低且性能稳定。
在本申请实施例中，请参阅图2和图7，风轮装置还包括轴套24，轴 套24套接于轴部22上从而对轴部22的周向进行限位，从而防止驱动机构23驱动轴部22的过程中轴部22沿侧向发生晃动产生噪音异响；开放槽121的背离开口122的末端形成有圆弧形孔123，轴套24设置于圆弧形孔123内且与圆弧形孔123适配，也就是说，轴套24的外径大致与圆弧形孔123的内径相当，以对轴套24进行较好的周向定位；组装时，将驱动机构23与第一端板12固定连接，使得驱动机构23抵接于轴套24的背离发热主体部21的一侧，也就是说，驱动机构23抵接于轴套24的顶侧，如此，通过驱动机构23对轴套24进行一侧轴向限位，圆弧形孔123对轴套24进行另一侧轴向限位，无需通过螺钉等紧固连接即可对轴套24进行定位安装，使得发热体单元2与所述风道11完成固定并无须螺丝，一方面减少零件数量，并可降低因零件多导致的质量问题，一方面也简化了装配工序，降低成本。驱动机构23包括动力轴(图中未标出)，动力轴伸入轴套24内且与轴部22驱动连接。
具体地，驱动机构23与第一端板12的固定可以采用螺栓连接，请参阅图7，此种设计需要在壳体1上增加定位螺孔17，并且还可以设置导向柱18，方便驱动机构23定位后再进行螺栓连接，使得装配方便；当然驱动机构23与第一端板12的固定也可以采用卡扣连接等其他固定方式。
为了便于对轴套24的支撑定位，本申请实施例中，请继续参阅图7，圆弧形孔123的内壁形成有台阶面124；轴套24形成轴肩241，轴肩241抵接于台阶面124上。通过台阶面124支撑轴套24，轴套24的底端端部抵接在壳体1上，避免轴套24和发热体单元2之间产生转动，进而减少发热体单元2的转动阻力。
在本申请实施例中，请参阅图3和图5，壳体1还包括弹性扣16；
第一侧板13的边缘处设置有至少一弹性扣16，和/或，第二侧板15的边缘处形成有至少一弹性扣16，如此便于梳理吹风设备的内部元器件的线 束。
本申请实施例的第二方面提供一种吹风设备，包括外壳(图中未标出)以及上述任一种的风轮装置；风轮装置设置于所述外壳内，外壳上形成有进气口和出气口，风道11与进气口和出气口连通，具体地，第一风道111连通所述进气口，第二风道112连通所述出气口。
可以理解的是，吹风设备可以是冷风扇、暖风机、空调或者空气净化器，在此不做限制。
本申请提供的各个实施例/实施方式在不产生矛盾的情况下可以相互组合。
以上所述仅为本申请的较佳实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种风轮装置，包括壳体、发热体单元以及风轮，所述壳体内形成有风道，所述风道包括顺接的第一风道以及第二风道，所述风轮设置于所述第一风道内，所述第二风道具有避让区域，所述发热体单元转动地设置于所述第二风道内，所述发热体单元包括遮挡所述第二风道的遮挡状态以及避让所述第二风道的避让状态，当所述发热体单元处于避让状态的条件下，所述发热体单元容置于所述避让区域内。
  2. 根据权利要求1所述的风轮装置，所述避让区域由所述第二风道的第一侧向外突出形成。
  3. 根据权利要求1所述的风轮装置，在所述发热体单元处于避让状态的条件下，所述发热体单元的背离所述第二风道的第一侧的表面至所述第二风道的与所述第一侧相对的第二侧之间的最小宽度大于或等于所述第一风道末端的宽度。
  4. 根据权利要求1所述的风轮装置，所述发热体单元的转动轴线与所述风轮的转动轴线平行。
  5. 根据权利要求1所述的风轮装置，所述第一风道的沿气流方向的首端处的宽度与末端处的宽度的比值为1.6-2。
  6. 根据权利要求1所述的风轮装置，所述壳体包括间隔设置的蜗舌和蜗壳，所述蜗舌和所述蜗壳之间形成所述第一风道，所述蜗舌与所述风轮的外缘之间的间距为2-4mm。
  7. 根据权利要求1所述的风轮装置，所述壳体包括间隔设置的蜗舌和蜗壳，所述蜗舌和所述蜗壳之间形成所述第一风道，所述蜗壳的内表面与所述风轮的外缘之间的间距沿气流方向逐渐增大。
  8. 根据权利要求7所述的风轮装置，所述蜗壳的内表面的形状为渐开线，所述渐开线以所述风轮为基圆。
  9. 根据权利要求1所述的风轮装置，所述壳体包括第一端板、第一侧板、第二端板以及第二侧板，所述第一侧板与所述第二侧板间隔设置，所述第一端板连接于所述第一侧板的第一端和所述第二侧板的第一端之间，所述第二端板连接于所述第一侧板的第二端和所述第二侧板的第二端之间，所述第一端板、所述第一侧板、所述第二端板以及所述第二侧板共同围设成所述风道；所述发热体单元转动地安装在所述第一端板和所述第二端板上，所述风轮转动地安装在所述第一端板和所述第二端板上。
  10. 根据权利要求9所述的风轮装置，所述第一侧板包括位于所述风道同一侧的蜗壳和子侧板，所述蜗壳对应所述第一风道，所述子侧板对应所述第二风道；
    所述蜗壳和子侧板为分体式结构；或者，所述蜗壳和子侧板一体成型。
  11. 根据权利要求10所述的风轮装置，当所述蜗壳和子侧板为分体式结构时，所述蜗壳和子侧板的其中之一形成有卡扣，其中另一形成有卡槽，所述卡扣卡入所述卡槽内。
  12. 根据权利要求9所述的风轮装置，所述第一端板形成有开放槽，所述开放槽延伸至所述第一端板的边缘处且在所述第一端板的边缘处形成有开口；所述发热体单元包括发热主体部以及位于所述发热主体部一端的轴部，所述轴部能够从所述开口处置入所述开放槽内；所述风轮装置包括驱动机构，所述驱动机构与所述轴部驱动连接。
  13. 根据权利要求12所述的风轮装置，所述风轮装置还包括轴套，所述开放槽的背离所述开口的末端形成有圆弧形孔，所述轴套设置于所述圆弧形孔内且与所述圆弧形孔适配，所述轴套套接于所述轴部上；所述驱动机构包括动力轴，所述动力轴伸入所述轴套内且与所述轴部驱动连接。
  14. 根据权利要求9所述的风轮装置，所述壳体还包括弹性扣；
    所述第一侧板的边缘处设置有至少一所述弹性扣；和/或，所述第二侧 板的边缘处形成有至少一所述弹性扣。
  15. 一种吹风设备，包括外壳以及权利要求1至14任一项所述的风轮装置；所述风轮装置设置于所述外壳内，所述外壳上形成有进气口和出气口，所述风道与所述进气口和所述出气口连通。
PCT/CN2019/108664 2019-08-01 2019-09-27 风轮装置以及吹风设备 WO2021017144A1 (zh)

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