CN112503006B - Air supply device and household appliance - Google Patents

Air supply device and household appliance Download PDF

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Publication number
CN112503006B
CN112503006B CN201910871826.8A CN201910871826A CN112503006B CN 112503006 B CN112503006 B CN 112503006B CN 201910871826 A CN201910871826 A CN 201910871826A CN 112503006 B CN112503006 B CN 112503006B
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CN
China
Prior art keywords
fan blade
output shaft
fan
air
support
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Application number
CN201910871826.8A
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Chinese (zh)
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CN112503006A (en
Inventor
叶似锦
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Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Environment Appliances Manufacturing Co Ltd
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Application filed by Midea Group Co Ltd, GD Midea Environment Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910871826.8A priority Critical patent/CN112503006B/en
Priority to PCT/CN2020/072144 priority patent/WO2021051731A1/en
Publication of CN112503006A publication Critical patent/CN112503006A/en
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Publication of CN112503006B publication Critical patent/CN112503006B/en
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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
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Abstract

The invention provides an air supply device and a household appliance, wherein the air supply device comprises: the double-shaft motor is provided with a first output shaft and a second output shaft which extend out in the same direction, a hollow part which is through along the axial direction is arranged in the first output shaft, and the second output shaft penetrates through the hollow part; the first fan blade component is sleeved on the first output shaft and driven by the first output shaft to rotate; and the second fan blade component is sleeved on the second output shaft so as to rotate under the driving of the second output shaft, wherein one of the first fan blade component and the second fan blade component is arranged on the inner side of the other one along the radial direction. According to the technical scheme, the first fan blade component and the second fan blade component can rotate independently respectively, so that different wind shapes can be provided according to the requirements of users, meanwhile, the disturbance between the first fan blade component and the second fan blade component is small, and the integral structure of the air supply device is convenient to arrange.

Description

Air supply device and household appliance
Technical Field
The invention relates to the technical field of fans, in particular to an air supply device and a household appliance.
Background
At present, a single wind wheel is driven by a single motor or a plurality of wind wheels are driven by a single motor in a common fan, and the wind form is single due to the fact that the rotating speed and the rotating direction of the wind wheels are fixed, and the requirements of users in different application scenes cannot be met. The utility model provides a fan among the prior art, the wind wheel through two relative settings of two motor drive rotates to the air-out air current mutual disturbance that makes two wind wheels forms new air-out air current, but this fan is limited to the structural constraint, and the both ends of motor are located respectively to two wind wheels, need can provide different wind-shapes through mutual disturbance between the air-out air current of two wind wheels, and has axial interval between two wind wheels, is unfavorable for the overall structure setting of fan.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide an air supply device.
Another object of the present invention is to provide a home appliance.
In order to achieve the above object, a first aspect of the present invention provides an air blowing device, including: the double-shaft motor is provided with a first output shaft and a second output shaft which extend out in the same direction, a hollow part which penetrates through the first output shaft along the axial direction is arranged in the first output shaft, and the second output shaft penetrates through the hollow part; the first fan blade assembly is sleeved on the first output shaft and driven by the first output shaft to rotate; the second fan blade component is sleeved on the second output shaft and driven by the second output shaft to rotate, wherein one of the first fan blade component and the second fan blade component is arranged on the inner side of the other in the radial direction.
According to the technical scheme of the first aspect of the invention, the air supply device comprises a double-shaft motor, a first fan blade component and a second fan blade component, and the first fan blade component and the second fan blade component are driven by the double-shaft motor to respectively and independently rotate. The double-shaft motor is provided with a first output shaft and a second output shaft which extend out in the same direction, a hollow part which is through along the axial direction is arranged in the first output shaft, the second output shaft penetrates through the hollow part of the first output shaft and extends out from the extending end of the first output shaft, mutual interference is not generated between the first output shaft and the second output shaft, and the first output shaft and the second output shaft can respectively and independently operate; the first fan blade component is sleeved on the first output shaft, the second fan blade component is sleeved on the second output shaft, so that when the double-shaft motor operates, the first output shaft and the second output shaft respectively drive the first fan blade component and the second fan blade component to rotate, the first fan blade component and the second fan blade component can rotate in the same direction or in the opposite direction, and the rotating speeds can be the same or different; in addition, one of the first fan blade component and the second fan blade component is arranged on the inner side of the other fan blade component in the radial direction, namely the radial sizes of the first fan blade component and the second fan blade component are different, so that the air outlet flow of the air supply device forms a multilayer different wind shape nesting mode, mutual disturbance between the air outlet flows is small, the wind shapes can be controlled conveniently, the rotating direction and the rotating speed of the first fan blade component and the second fan blade component can be adjusted according to the requirements of users, different wind shapes can be provided, and the differentiation requirements of the users can be met.
In addition, the air supply device in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, the first fan blade assembly includes: the first fan blade support is sleeved on the first output shaft, and the first fan blade is arranged on the outer side wall surface and/or the inner side wall surface of the first fan blade support along the circumferential direction; the second fan blade assembly includes: the second fan blade support is sleeved on the second output shaft, and the second fan blade is arranged on the outer side wall surface and/or the inner side wall surface of the second fan blade support along the circumferential direction.
In the technical scheme, the first fan blade assembly comprises a first fan blade support and a first fan blade arranged on the first fan blade support, and the first fan blade is supported by the first fan blade support, wherein the first fan blade support is sleeved on the first output shaft so as to rotate along with the first output shaft when the first output shaft rotates and drive the first fan blade to rotate, so that air is stirred by the first fan blade to form air flow; when the lateral wall face of first flabellum support was located along circumference to first flabellum, first flabellum support was located the inboard, and first flabellum extends along the radial outside of first flabellum support, and when the lateral wall face of first flabellum support was located along circumference to first flabellum, first flabellum support was located the outside, and first flabellum extends along the radial inside of first flabellum support.
Similarly, the second fan blade assembly comprises a second fan blade support and second fan blades arranged on the second fan blade support, and the second fan blades are supported by the second fan blade support, wherein the second fan blade support is sleeved on the second output shaft so as to rotate along with the second output shaft when the second output shaft rotates and drive the second fan blades to rotate, so that air is stirred by the second fan blades to form air flow; when the second flabellum located the lateral wall face of second flabellum support along circumference, second flabellum support was located the inboard, and the second flabellum extends to outside along the radial of second flabellum support, and when the medial wall face of second flabellum support was located along circumference to the second flabellum, second flabellum support was located the outside, and the second flabellum extends along the radial inside of second flabellum support.
In the above technical solution, the first blade support is annular, and the second blade assembly is disposed on the inner side of the first blade support in the radial direction.
In this technical scheme, first flabellum support is the annular, locates first flabellum support along the inboard of radial direction through second flabellum subassembly for the air-out face of first flabellum does not produce with the air-out face of second flabellum and overlaps, and then makes the air current that first flabellum produced be cylindric, and the air current that the second flabellum produced is cylindric, and cylindric air current flows along the hollow part of cylindric air current, thereby sends out the air current of different wind shapes simultaneously to same direction.
Furthermore, one end of the first fan blade support, which is close to the double-shaft motor, is sleeved on the first output shaft and is fixedly connected with the first output shaft, and the second fan blade assembly is arranged on the inner side of the first fan blade support along the axial direction.
In this technical scheme, first flabellum support is hollow structure along radial inboard, and first flabellum support be close to the pot head of double-shaft motor locate on first output shaft and with first output shaft fixed connection, the one end that double-shaft motor was kept away from to first flabellum support is the opening form, second flabellum subassembly is kept away from the one end of double-shaft motor by first flabellum support and is stretched into in the first flabellum support, thereby make first flabellum subassembly and second flabellum subassembly form inside and outside nested structure, air supply arrangement's axial dimension has effectively been reduced, the space occupation has been reduced.
In the above technical scheme, at least one air passing channel is arranged on the end face of the first fan blade support close to the end face of the double-shaft motor, and the air passing channel and the second fan blade are correspondingly arranged.
In the technical scheme, at least one air passing channel is arranged on the end face, close to the double-shaft motor, of the first fan blade support, so that air can flow normally through the first fan blade support along the axial direction, the air passing channel and the second fan blade are correspondingly arranged, and air on the air inlet side is ensured not to be blocked when the second fan blade rotates. It can be understood that if the end face of the first fan blade support close to the end face of the double-shaft motor is of a closed structure, the air flow on the air inlet side of the second fan blade is blocked, and the normal air outlet of the air supply device is seriously influenced.
Alternatively, the air passage may be perforated, grilled or otherwise shaped.
In the above technical solution, a distance between the inner edge and the outer edge of the second fan blade is greater than a distance between the inner edge and the outer edge of the first fan blade.
In the technical scheme, the distance between the inner edge and the outer edge of the second fan blade is limited to be larger than the distance between the inner edge and the outer edge of the first fan blade, namely the size from the blade root to the blade tip of the second fan blade is larger than the size from the blade root to the blade tip of the first fan blade, so that the air outlet flow of the second fan blade is enhanced, the inner side air volume of the whole air outlet flow of the air supply device is larger than the outer side air volume, and the problem that the air outlet flow is disordered due to impact on the inner side air flow when the outer side air volume is larger is avoided.
In the above technical solution, the second blade support is annular, and the first blade assembly is disposed on the inner side of the second blade support along the radial direction.
In this technical scheme, the second flabellum support is the annular, locates the inboard of second flabellum support along radial direction through first flabellum subassembly for the air-out face of second flabellum does not produce the overlapping with the air-out face of first flabellum, and then makes the air current that the second flabellum produced be cylindric, and the air current that the first flabellum produced is cylindric, and cylindric air current flows along the hollow part of cylindric air current, thereby send out the air current of different wind shapes simultaneously to same direction.
Furthermore, the end, away from the double-shaft motor, of the second fan blade support is sleeved on the second output shaft and is fixedly connected with the second output shaft, and the first fan blade assembly is arranged on the inner side, along the axial direction, of the second fan blade support.
In this technical scheme, the radial inboard of second flabellum support is hollow structure, and the second flabellum support keep away from on the second output shaft and with second output shaft fixed connection of pot head, the one end that the second flabellum support is close to double-shaft motor is open structure, first flabellum subassembly is stretched into in the second flabellum support by the one end that the second flabellum support is close to double-shaft motor, thereby make first flabellum subassembly and second flabellum subassembly form inside and outside nested structure, air supply arrangement's axial dimension has effectively been reduced, the space occupation has been reduced.
In the above technical scheme, at least one air passing channel is arranged on the end face of one end, away from the double-shaft motor, of the second fan blade support, and the air passing channel and the first fan blade assembly are correspondingly arranged.
In this technical scheme, through being equipped with at least one passageway of crossing wind on the second flabellum support keeps away from the one end terminal surface of double-shaft motor to make the air can pass second flabellum support normal flow along the axial, cross the wind passageway and correspond the setting with first flabellum, in order to ensure that the air of air-out side is not blockked when first flabellum rotates. It can be understood that if the end face of the second fan blade support far away from the double-shaft motor is of a closed structure, the air flow of the air outlet side of the first fan blade is blocked, and the normal air outlet of the air supply device is seriously affected.
Alternatively, the air passage may be perforated, grilled or otherwise shaped.
In the above technical solution, a distance between an inner edge and an outer edge of the first fan blade is greater than a distance between an inner edge and an outer edge of the second fan blade.
In the technical scheme, the distance between the inner edge and the outer edge of the first fan blade is limited to be larger than the distance between the inner edge and the outer edge of the second fan blade, namely the size from the blade root to the blade tip of the first fan blade is larger than the size from the blade root to the blade tip of the second fan blade, so that the air outlet flow of the first fan blade is enhanced, the inner side air volume of the whole air outlet flow of the air supply device is larger than the outer side air volume, and the problem that the air outlet flow is disordered due to impact on the inner side air flow when the outer side air volume is larger is avoided.
In the above technical scheme, the air outlet surface of the first fan blade component and the air outlet surface of the second fan blade component are in the same plane.
In this technical scheme, when one of first flabellum subassembly and second flabellum subassembly is the loop configuration, through the air-out face of injecing first flabellum subassembly and the air-out face of second flabellum subassembly in the coplanar, can make the air-out air current of first flabellum subassembly and the air-out air current of second flabellum subassembly send out by same starting point to avoid producing the disturbance each other. It can be understood that the air-out air current has certain diffusion at the flow in-process, if the air-out face of first flabellum subassembly and the air-out face of second flabellum subassembly are not coplanar, can make the air-out face be close to the air-out air current of double-shaft motor and produce certain interference to the formation of the air-out air current that the air-out face kept away from double-shaft motor, especially when having axial interval between first flabellum subassembly and the second flabellum subassembly, can lead to being close to the air-out air current of a flabellum subassembly of double-shaft motor to forming the disturbance to keeping away from double-shaft motor's air-in air current.
In the above technical scheme, the air inlet surface of the first fan blade component and the air inlet surface of the second fan blade component are in the same plane.
In this technical scheme, when one of first flabellum subassembly and second flabellum subassembly is the loop configuration, through injecing the air inlet face of first flabellum subassembly and the air inlet face of second flabellum subassembly in the coplanar, can make the air inlet air current of first flabellum subassembly and the air inlet air current of second flabellum subassembly get into two flabellum subassemblies respectively by same starting point to avoid producing the interference each other. It can be understood that there is certain suction in the air inlet face of flabellum subassembly, if the air inlet face of first flabellum subassembly is not coplanar with the air inlet face of second flabellum subassembly, cause the influence each other of the intake of two flabellum subassemblies easily under the suction effect, and when first flabellum subassembly and second flabellum subassembly have the axial interval, still can cause a flabellum subassembly that is close to double-shaft motor to form the disturbance to the air inlet air current of a flabellum subassembly of keeping away from double-shaft motor.
In the above technical solution, a double shaft motor includes: the first driving assembly comprises a first stator structure and a first rotor structure, and a first output shaft is fixedly connected with the first rotor structure; and the second driving assembly comprises a second stator structure and a second rotor structure, and a second output shaft is fixedly connected with the second rotor structure, wherein the first output shaft and the second output shaft are driven by the first driving assembly and the second driving assembly to independently rotate respectively.
In the technical scheme, the double-shaft motor comprises a first driving assembly and a second driving assembly, wherein the first driving assembly comprises a first stator structure, a first rotor structure and a first output shaft, the first output shaft is used for being connected with the first fan blade assembly, and the first output shaft is fixedly connected with the first rotor structure, so that when the first driving assembly is electrified, the first stator structure drives the first rotor structure to rotate and drives the first output shaft to rotate, and the first fan blade assembly is driven to rotate; the second driving assembly comprises a second stator structure, a second rotor structure and a second output shaft, the second output shaft is used for being connected with the second fan blade assembly, the second output shaft is fixedly connected with the second rotor structure, when the second driving assembly is electrified, the second stator structure drives the second rotor structure to rotate and drives the second output shaft to rotate, and therefore the second fan blade assembly is driven to rotate. One end of the first output shaft extends into the second output shaft and the other end of the second output shaft extends out to form a mutually nested structure, so that the first output shaft and the second output shaft can independently rotate under the driving of the first driving assembly and the second driving assembly respectively to drive the first fan blade assembly and the second fan blade assembly to independently rotate respectively, and accordingly differentiated wind shapes are provided.
In the above technical solution, the axis of the first output shaft coincides with the axis of the second output shaft.
In the technical scheme, the axial line of the first output shaft is limited to be coincident with the axial line of the second output shaft, namely the first output shaft and the second output shaft are coaxially arranged, and the rotating central line of the first driving assembly is coincident with the rotating central line of the second driving assembly, so that on one hand, the distance from any radial angle of the outer side wall of the second output shaft to the inner side of the first output shaft is equal, the mutual interference between the first output shaft and the second output shaft in the rotating process is prevented, and on the other hand, the radial positioning of the first fan blade assembly and the second fan blade assembly is facilitated. In addition, due to the fact that the axes of the two output shafts are overlapped, installation and arrangement of the first driving assembly, the second driving assembly and other connecting structures are facilitated.
In the above technical scheme, air supply arrangement still includes the casing, and the one end of casing is equipped with the through-hole, and in the casing was located to the double-shaft motor, first output shaft and second output shaft passed the through-hole and outwards stretched out, and first flabellum subassembly and second flabellum subassembly are located outside the casing.
In this technical scheme, air supply arrangement includes the casing well, and in double-shaft motor located the casing to play the safety protection effect to double-shaft motor through the casing, in order to avoid double-shaft motor and external object to take place to contact, simultaneously, the casing still can play dustproof effect. One end of the casing is provided with a through hole, and the first output shaft and the second output shaft penetrate through the through hole and extend outwards so as to be connected with the first fan blade component and the second fan blade component respectively outside the casing and drive the first fan blade component and the second fan blade component to rotate.
In the above technical solution, the air supply device further includes: the first mesh enclosure is arranged at one end of the shell, which is provided with the through hole, and the first mesh enclosure is detachably connected with the shell; the second screen panel is located one side that the casing was kept away from to first screen panel, and the second screen panel can be dismantled with first screen panel and be connected, and inside formation after first screen panel is connected with the second screen panel holds the cavity, and first flabellum subassembly and second flabellum subassembly are located and are held in the cavity.
In this technical scheme, air supply arrangement is still including dismantling first screen panel and the second screen panel of connection, first screen panel is located the one end that is close to the casing and can be dismantled with the casing and be connected to carry out the rigidity, the one end of keeping away from the casing is located to the second screen panel, with inside formation after first screen panel and second screen panel are connected holds the cavity, hold first flabellum subassembly and second flabellum subassembly, and first screen panel and second screen panel are netted grid structure, can not cause the air current to block, can ensure that the air current normally passes. The first fan blade assembly and the second fan blade assembly are protected safely by the first mesh enclosure and the second mesh enclosure, the fan blades are prevented from contacting or colliding with external objects to cause damage, and meanwhile, safety accidents caused by contact with human bodies in the rotating process of the fan blades are also prevented.
In a second aspect of the present invention, a household appliance is provided, including: the blower device according to any one of the first aspect; the household appliance is a desk fan, a floor fan, a ceiling fan, a wall fan, a tower fan, a cooling fan or a warm air blower.
According to a second aspect of the present invention, the household appliance includes the air supply device of any one of the first aspect, so that the household appliance has all the advantages of the air supply device of any one of the first aspect, and details are not repeated herein. In addition, the air supply device of the invention can be used for multiple purposes, so that the household appliance of the invention can be a table fan, a floor fan, a ceiling fan, a wall fan, a tower fan, a cooling fan or a warm air blower, and can provide different wind shapes according to the requirements of users.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a cross-sectional view of an air-moving device according to an embodiment of the invention;
FIG. 2 shows an exploded view of an air delivery device according to an embodiment of the present invention;
fig. 3 shows a cross-sectional view of a dual-shaft motor according to an embodiment of the present invention;
figure 4 illustrates a cross-sectional view of a floor fan in accordance with one embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
the fan comprises a double-shaft motor 1, a first output shaft 11, a second output shaft 12, a first driving assembly 13, a first stator structure 131, a first rotor structure 132, a first cover 133, a second driving assembly 14, a second stator structure 141, a second rotor structure 142, a second cover 143, a first fan blade assembly 2, a first fan blade 21, a first fan blade support 22, a second fan blade assembly 3, a second fan blade 31, a second fan blade support 32, an air passing channel 4, a machine shell 5, a first mesh cover 61, a second mesh cover 62, a floor fan 7, an air supply device 71 and a supporting base 72.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
An air supply device and a home appliance according to some embodiments of the present invention are described below with reference to fig. 1 to 4.
Example one
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, one end of the second output shaft 12 penetrates through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade component 2 is sleeved at the extending end of the first output shaft 11, the second fan blade component 3 is sleeved at the extending end of the second output shaft 12, and the second fan blade component 3 is arranged on the inner side of the first fan blade component 2 in the radial direction, so that the air outlet flows of the first fan blade component 2 and the second fan blade component 3 form an inner-outer nested form, and differential wind shapes are provided. Specifically, the first blade assembly 2 includes a first blade 21 and a first blade support 22, the first blade support 22 is sleeved on the first output shaft 11, the first blade 21 is circumferentially disposed on an outer side wall surface of the first blade support 22, and extends outward along a radial direction of the first blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32.
Example two
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, and one end of the second output shaft 12 passes through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, specifically, the first fan blade assembly 2 comprises a first fan blade 21 and a first fan blade support 22, the first fan blade support 22 is sleeved on the first output shaft 11, and the first fan blade 21 is circumferentially arranged on the outer side wall surface of the first fan blade support 22 and extends outwards along the radial direction of the first fan blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. Wherein, first flabellum support 22 is the annular, first flabellum support 22 is located to second flabellum subassembly 3 whole along radial direction's inboard, first flabellum support 22 is close to the pot head of double-shaft motor 1 and locates on first output shaft 11 and with first output shaft 11 fixed connection, second flabellum subassembly 3 is whole to be located first flabellum support 22 along axial inboard, first flabellum subassembly 2 forms nested structure with second flabellum subassembly 3 promptly, so that the air-out air current of first flabellum subassembly 2 and second flabellum subassembly 3 forms inside and outside nested form, first flabellum subassembly 2 and second flabellum subassembly 3 rotate independently under the drive of first output shaft 11 and second output shaft 12 respectively, in order to provide the wind shape of differentiation.
EXAMPLE III
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1 to an outer end, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, and a length of the second output shaft 12 is greater than a length of the first output shaft 11, one end of the second output shaft 12 passes through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11 to an outer end, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade component 2 is sleeved at the extending end of the first output shaft 11, the second fan blade component 3 is sleeved at the extending end of the second output shaft 12,
specifically, the first vane assembly 2 includes a first vane and a first vane support 22, the first vane support 22 is sleeved on the first output shaft 11, and the first vane 21 is circumferentially disposed on an outer side wall surface of the first vane support 22 and radially extends outward along the first vane support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so as to provide different wind shapes.
As shown in fig. 2, the first blade support 22 is annular, specifically, one end of the first blade support 22 close to the dual-axis motor 1 is sleeved on the first output shaft 11 and is fixedly connected to the first output shaft 11, one end of the first blade support 22 away from the dual-axis motor 1 is open, the second blade assembly 3 extends into the first blade support 22 from the open end of the first blade support 22, and is integrally disposed on the inner side of the first blade support 22 along the radial direction and the axial direction, that is, the first blade assembly 2 and the second blade assembly 3 form a nested structure, so that the air outlet flows of the first blade assembly 2 and the second blade assembly 3 form an inner-outer nested form. One end of the first fan blade bracket 22 close to the dual-shaft motor 1 is provided with a plurality of air passing channels 4 along the radial direction, and the plurality of air passing channels 4 are uniformly arranged around the circumference of the first output shaft 11 and are arranged corresponding to the second fan blades in the axial direction, so that the air flow on the air inlet side of the second fan blades 31 can pass through the air passing channels 4 to normally flow.
In addition, the distance between the inner edge and the outer edge of the second blade is greater than the distance between the inner edge and the outer edge of the first blade 21, that is, the distance from the blade root to the blade tip of the second blade 31 is greater than the distance from the blade root to the blade tip of the first blade 21, so as to increase the air outlet area of the second blade 31.
Example four
The embodiment provides an air supply device 71, which comprises a double-shaft motor 1, a first fan blade assembly 2 and a second fan blade assembly 3, wherein the double-shaft motor 1 is provided with a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, a hollow part which penetrates along the axial direction is arranged in the hollow shaft, the first output shaft 11 extends out from one end of the double-shaft motor 1, the outer diameter of the second output shaft 12 is smaller than the inner diameter of the first output shaft 11, the length of the second output shaft 12 is larger than that of the first output shaft 11, one end of the second output shaft 12 penetrates through the hollow part of the first output shaft 11 and extends out from the extending end of the first output shaft 11, and the axis of the first output shaft 11 coincides with the axis of the second output shaft 12. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, and the first fan blade assembly 2 is arranged at the inner side of the second fan blade assembly 3 along the radial direction.
Specifically, the first blade assembly 2 includes a first blade 21 and a first blade support 22, the first blade support 22 is sleeved on the first output shaft 11, the first blade 21 is circumferentially disposed on an outer side wall surface of the first blade support 22, and extends outward along a radial direction of the first blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so as to provide different wind shapes. Wherein, second flabellum support 32 is the annular, specifically, the one end cover that the biax motor 1 was kept away from to second flabellum support 32 is located on second output shaft 12 and with second output shaft 12 fixed connection, second flabellum support 32 is close to the one end of biax motor 1 and is the opening form, first flabellum subassembly 2 stretches into in second flabellum support 32 by the opening one end of second flabellum support 32 to wholly locate second flabellum support 32 along radial direction and axial direction's inboard, first flabellum subassembly 2 forms nested structure with second flabellum subassembly 3 promptly, so that the air outlet air current of first flabellum subassembly 2 and second flabellum subassembly 3 forms inside and outside nested form. One end of the second blade support 32, which is far away from the dual-shaft motor 1, is provided with a plurality of air passages 4 along the radial direction, and the plurality of air passages 4 are uniformly arranged around the circumference of the second output shaft 12 and are arranged corresponding to the first blades 21 in the axial direction, so that the air flow at the air outlet side of the first blades 21 can pass through the air passages 4 to normally flow.
In addition, the distance between the inner edge and the outer edge of the first fan blade 21 is greater than the distance between the inner edge and the outer edge of the second fan blade 31, that is, the distance from the blade root to the blade tip of the first fan blade 21 is greater than the distance from the blade root to the blade tip of the second fan blade 31, so as to increase the air outlet area of the first fan blade 21.
EXAMPLE five
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, one end of the second output shaft 12 penetrates through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, specifically, the first fan blade assembly 2 comprises a first fan blade 21 and a first fan blade support 22, the first fan blade support 22 is sleeved on the first output shaft 11, and the first fan blade 21 is circumferentially arranged on the outer side wall surface of the first fan blade support 22 and extends outwards along the radial direction of the first fan blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so as to provide different wind shapes.
Wherein, as shown in fig. 2, first flabellum support 22 is the annular, specifically, the one end cover that first flabellum support 22 is close to biaxial motor 1 is located on first output shaft 11 and with first output shaft 11 fixed connection, the one end that first flabellum support 22 keeps away from biaxial motor 1 is the opening form, second flabellum subassembly 3 is stretched into in first flabellum support 22 by the opening one end of first flabellum support 22 to wholly locate first flabellum support 22 along the inboard of radial direction and axial direction, first flabellum subassembly 2 forms nested structure with second flabellum subassembly 3 promptly, so that the air outlet air current of first flabellum subassembly 2 and second flabellum subassembly 3 forms inside and outside nested form. One end of the first fan blade bracket 22 close to the dual-shaft motor 1 is provided with a plurality of air passing channels 4 along the radial direction, and the plurality of air passing channels 4 are uniformly arranged around the circumference of the first output shaft 11 and are arranged corresponding to the second fan blades 31 in the axial direction, so that the air flow on the air inlet side of the second fan blades 31 can pass through the air passing channels 4 to normally flow.
Further, the air outlet surface of the first fan blade component 2 and the air outlet surface of the second fan blade component 3 are in the same plane, namely the two air outlet surfaces are parallel and level in the vertical direction; the air inlet face of first flabellum subassembly 2 is at the coplanar with the air inlet face of second flabellum subassembly 3, and two air inlet faces are parallel and level in vertical direction promptly, make air supply arrangement 71's first flabellum 21 and second flabellum 31 equal along axial size simultaneously, and at the rotation in-process, air supply arrangement 71 holistic air inlet face and air-out face keep relatively stable, reduce mutual disturbance.
EXAMPLE six
As shown in fig. 1 and fig. 2, the air supply device 71 provided in this embodiment includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1 to an outer end, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, an end of the second output shaft 12 penetrates through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11 to an outer end, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, specifically, the first fan blade assembly 2 comprises a first fan blade 21 and a first fan blade support 22, the first fan blade support 22 is sleeved on the first output shaft 11, and the first fan blade 21 is circumferentially arranged on the outer side wall surface of the first fan blade support 22 and extends outwards along the radial direction of the first fan blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so that different wind shapes are provided.
As shown in fig. 3, the two-shaft motor 1 specifically includes a first drive assembly 13 and a second drive assembly 14. Specifically, the first driving assembly 13 further includes a first stator structure 131, a first rotor structure 132 and a first cover 133, the first cover 133 is a hollow structure with an opening at one end, the opening of the first cover 133 faces the first blade assembly 2, the first stator structure 131 is disposed in the hollow portion of the first cover 133, the first rotor structure 132 is circumferentially disposed on the inner side of the first cover 133, a through hole matched with the first output shaft 11 is disposed on the end face of the other end of the first cover 133, one end of the first output shaft 11 close to the second driving assembly 14 extends into the through hole of the first cover 133 and is fixedly connected with the first cover 133, the fixed connection between the first rotor structure 132 and the first output shaft 11 is achieved by a first cover 133, so as to drive the first output shaft 11 to rotate during the rotation of the first rotor structure 132, and further drive the first fan blade assembly 2 to rotate. Similarly, the second driving assembly 14 further includes a second stator structure 141, a second rotor structure 142 and a second cover 143, the second cover 143 is a hollow structure with an opening at one end, the opening of the second cover 143 faces away from the first fan assembly 2, the second stator structure 141 is disposed in the hollow portion of the second cover 143, the second rotor structure 142 is circumferentially disposed on the inner side of the second cover 143, a through hole matched with the second output shaft 12 is disposed on an end surface of the other end of the second cover 143, one end of the second output shaft 12 passes through the through hole of the second cover 143 and is fixedly connected with the second cover 143, one end of the second output shaft 12 passes through the hollow portion of the first output shaft 11 and extends outward, the second rotor structure 142 and the second output shaft 12 are fixedly connected through the second cover 143, so as to drive the second output shaft 12 to rotate during the rotation of the second rotor structure 142, thereby driving the second fan blade assembly 3 to rotate.
EXAMPLE seven
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, one end of the second output shaft 12 penetrates through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, specifically, the first fan blade assembly 2 comprises a first fan blade 21 and a first fan blade support 22, the first fan blade support 22 is sleeved on the first output shaft 11, and the first fan blade 21 is circumferentially arranged on the outer side wall surface of the first fan blade support 22 and extends outwards along the radial direction of the first fan blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32. The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so as to provide different wind shapes.
As shown in fig. 2, the first blade support 22 is annular, specifically, one end of the first blade support 22 close to the dual-axis motor 1 is sleeved on the first output shaft 11 and is fixedly connected to the first output shaft 11, one end of the first blade support 22 away from the dual-axis motor 1 is open, the second blade assembly 3 extends into the first blade support 22 from the open end of the first blade support 22, and is integrally disposed on the inner side of the first blade support 22 along the radial direction and the axial direction, that is, the first blade assembly 2 and the second blade assembly 3 form a nested structure, so that the air outlet flows of the first blade assembly 2 and the second blade assembly 3 form an inner-outer nested form. One end of the first fan blade bracket 22 close to the dual-shaft motor 1 is provided with a plurality of air passing channels 4 along the radial direction, and the plurality of air passing channels 4 are uniformly arranged around the circumference of the first output shaft 11 and are arranged corresponding to the second fan blades 31 in the axial direction, so that the air flow on the air inlet side of the second fan blades 31 can pass through the air passing channels 4 to normally flow.
Further, as shown in fig. 2, the air blowing device 71 further includes a housing 5, a first mesh cover 61, and a second mesh cover 62. The double-shaft motor 1 is arranged in the casing 5, a through hole is formed in one end of the casing 5, and a first output shaft 11 and a second output shaft 12 of the double-shaft motor 1 penetrate through the through hole of the casing 5 to extend outwards and are connected with the first fan blade component 2 and the second fan blade component 3 outside the casing 5 respectively. The first mesh cover 61 is axially arranged between the casing 5 and the first fan blade assembly 2 and detachably connected with one end of the casing 5 facing the first fan blade assembly 2; the second net cover 62 is arranged at one end of the first net cover 61 far away from the casing 5, the second net cover 62 is detachably connected with the first net cover 61, a containing cavity is formed inside the second net cover 62 and the first net cover 61 after the second net cover 62 is connected with the first net cover 61, and the first fan blade assembly 2 and the second fan blade assembly 3 are contained in the containing space. The first mesh enclosure 61 and the second mesh enclosure 62 are respectively provided with radial grids, so that the airflow can normally pass through the first mesh enclosure 61 and the second mesh enclosure 62.
Example eight
As shown in fig. 1, the present embodiment provides an air supply device 71, which includes a dual-shaft motor 1, a first fan blade assembly 2, and a second fan blade assembly 3, wherein the dual-shaft motor 1 has a first output shaft 11 and a second output shaft 12, the first output shaft 11 is a hollow shaft, and is provided with a hollow portion penetrating along an axial direction, the first output shaft 11 extends from an inner end of the dual-shaft motor 1, an outer diameter of the second output shaft 12 is smaller than an inner diameter of the first output shaft 11, a length of the second output shaft 12 is larger than a length of the first output shaft 11, one end of the second output shaft 12 penetrates through the hollow portion of the first output shaft 11 and extends from an extending end of the first output shaft 11, and an axis of the first output shaft 11 coincides with an axis of the second output shaft 12. The first fan blade assembly 2 is sleeved at the extending end of the first output shaft 11, the second fan blade assembly 3 is sleeved at the extending end of the second output shaft 12, specifically, the first fan blade assembly 2 comprises a first fan blade 21 and a first fan blade support 22, the first fan blade support 22 is sleeved on the first output shaft 11, and the first fan blade 21 is circumferentially arranged on the outer side wall surface of the first fan blade support 22 and extends outwards along the radial direction of the first fan blade support 22; the second blade assembly 3 includes a second blade 31 and a second blade support 32, the second blade support 32 is sleeved on the second output shaft 12, and the first blade 21 is axially disposed on an outer side wall surface of the second blade support 32 and radially extends outward from the second blade support 32.
As shown in fig. 2, the first blade support 22 is annular, specifically, one end of the first blade support 22 close to the dual-axis motor 1 is sleeved on the first output shaft 11 and is fixedly connected to the first output shaft 11, one end of the first blade support 22 away from the dual-axis motor 1 is open, the second blade assembly 3 extends into the first blade support 22 from the open end of the first blade support 22, and is integrally disposed on the inner side of the first blade support 22 along the radial direction and the axial direction, that is, the first blade assembly 2 and the second blade assembly 3 form a nested structure, so that the air outlet flows of the first blade assembly 2 and the second blade assembly 3 form an inner-outer nested form. One end of the first fan blade bracket 22 close to the dual-shaft motor 1 is provided with a plurality of air passing channels 4 along the radial direction, and the plurality of air passing channels 4 are uniformly arranged around the circumference of the first output shaft 11 and are arranged corresponding to the second fan blades 31 in the axial direction, so that the air flow on the air inlet side of the second fan blades 31 can pass through the air passing channels 4 to normally flow.
In addition, the distance between the inner edge and the outer edge of the second fan blade 31 is greater than the distance between the inner edge and the outer edge of the first fan blade 21, that is, the distance from the blade root to the blade tip of the second fan blade 31 is greater than the distance from the blade root to the blade tip of the first fan blade 21, so as to increase the air outlet area of the second fan blade 31. The air outlet surface of the first fan blade component 2 and the air outlet surface of the second fan blade component 3 are in the same plane, namely the two air outlet surfaces are parallel and level in the vertical direction; the air inlet surface of first fan blade assembly 2 and the air inlet surface of second fan blade assembly 3 are on the same plane, that is, two air inlet surfaces are parallel and level in the vertical direction, and simultaneously, the size of the axial dimension of first fan blade 21 and second fan blade 31 of air supply device 71 is equal, and in the rotating process, the whole air inlet surface and air outlet surface of air supply device 71 keep relatively stable, and the mutual disturbance is reduced.
The first fan blade assembly 2 and the second fan blade assembly 3 are driven by the first output shaft 11 and the second output shaft 12 to rotate independently, so that different wind shapes are provided. As shown in fig. 3, the two-shaft motor 1 specifically includes a first drive assembly 13 and a second drive assembly 14. Specifically, the first driving assembly 13 further includes a first stator structure 131, a first rotor structure 132 and a first cover 133, the first cover 133 is a hollow structure with an opening at one end, the opening of the first cover 133 faces the first fan blade assembly 2, the first stator structure 131 is disposed in the hollow portion of the first cover 133, the first rotor structure 132 is circumferentially disposed on the inner side surface of the first cover 133, a through hole matched with the first output shaft 11 is disposed on the end surface of the other end of the first cover 133, one end of the first output shaft 11 close to the second driving assembly 14 extends into the through hole of the first cover 133 and is fixedly connected with the first cover 133, the fixed connection between the first rotor structure 132 and the first output shaft 11 is achieved by a first cover 133, so as to drive the first output shaft 11 to rotate during the rotation of the first rotor structure 132, and further drive the first fan blade assembly 2 to rotate. Similarly, the second driving assembly 14 further includes a second stator structure 141, a second rotor structure 142 and a second cover 143, the second cover 143 is a hollow structure with an opening at one end, the opening of the second cover 143 faces away from the first fan assembly 2, the second stator structure 141 is disposed in the hollow portion of the second cover 143, the second rotor structure 142 is circumferentially disposed on the inner side of the second cover 143, a through hole matched with the second output shaft 12 is disposed on an end surface of the other end of the second cover 143, one end of the second output shaft 12 passes through the through hole of the second cover 143 and is fixedly connected with the second cover 143, the second output shaft 12 passes through one end of the second cover 143 and passes through the hollow portion of the first output shaft 11 and extends outward, the second cover 143 realizes the fixed connection between the second rotor structure 142 and the second output shaft 12, so as to drive the second output shaft 12 to rotate during the rotation of the second rotor structure 142, thereby driving the second fan blade assembly 3 to rotate.
As shown in fig. 2, the air blower 71 further includes a housing 5, a first mesh cover 61, and a second mesh cover 62. The double-shaft motor 1 is arranged in the casing 5, a through hole is formed in one end of the casing 5, and a first output shaft 11 and a second output shaft 12 of the double-shaft motor 1 penetrate through the through hole of the casing 5 to extend outwards and are connected with the first fan blade component 2 and the second fan blade component 3 outside the casing 5 respectively. The first mesh cover 61 is axially arranged between the casing 5 and the first fan blade assembly 2 and detachably connected with one end of the casing 5 facing the first fan blade assembly 2; the second mesh enclosure 62 is disposed at one end of the first mesh enclosure 61 far away from the housing 5, the second mesh enclosure 62 is detachably connected to the first mesh enclosure 61, and a containing cavity is formed inside the second mesh enclosure 62 connected to the first mesh enclosure 61, and the first fan blade assembly 2 and the second fan blade assembly 3 are contained in the containing space. The first mesh enclosure 61 and the second mesh enclosure 62 are respectively provided with radial grids, so that the airflow can normally pass through the first mesh enclosure 61 and the second mesh enclosure 62.
Example nine
As shown in fig. 4, the present embodiment provides a household appliance, specifically, the household appliance is a floor fan 7, and includes the air supply device 71 and the supporting base 72 in any of the above embodiments, the supporting base 72 supports the air supply device 71, so that the air supply device 71 is located at a suitable air supply height, and the dual-shaft motor 1 of the air supply device 71 drives the first fan blade assembly 2 and the second fan blade assembly 3 to respectively and independently operate, so as to provide a differentiated wind shape by adjusting the rotation speed and the rotation direction of the first fan blade assembly 2 and the second fan blade assembly 3.
Specifically, when the second fan blade assembly 3 is disposed on the radial inner side of the first fan blade assembly 2 and the rotation speed of the first fan blade assembly 2 is greater than that of the second fan blade assembly 3, or when the first fan blade assembly 2 is disposed on the radial inner side of the second fan blade assembly 3 and the rotation speed of the first fan blade assembly 2 is less than that of the second fan blade assembly 3, the air outlet flow of the air supply device 71 is the air volume and the air speed of the inner air flow are less than those of the outer air flow, the air outlet flow gradually diffuses outward in the flowing process, and the radiation range of the air outlet flow can be expanded. When the second fan blade assembly 3 is disposed on the radial inner side of the first fan blade assembly 2 and the rotation speed of the first fan blade assembly 2 is less than that of the second fan blade assembly 3, or the first fan blade assembly 2 is disposed on the radial inner side of the second fan blade assembly 3 and the rotation speed of the first fan blade assembly 2 is greater than that of the second fan blade assembly 3, the air outlet flow of the air supply device 71 is the air volume and the air speed of the inner air flow are greater than those of the outer air flow, and the air outlet flow gradually gathers in the flowing process, so that the air outlet flow is relatively concentrated. When the rotating speed of the first fan blade component 2 is equal to that of the second fan blade component 3, the rotating process of the two fan blades is close to that of one fan blade to rotate, fusion of air outlet flow in the flowing process is facilitated, the air outlet flow is relatively stable, and mutual impact and disturbance between the inner side air flow and the outer side air flow can be reduced.
Further, when the rotation directions of the first fan blade assembly 2 and the second fan blade assembly 3 of the air supply device 71 are the same, the disturbance of the contact surface between the inner air flow and the outer air flow of the air outlet flow of the air supply device 71 is small, which is beneficial to the fusion of the inner air flow and the outer air flow; when the rotation directions of the first fan blade assembly 2 and the second fan blade assembly 3 of the air supply device 71 are opposite, certain mutual impact and disturbance are generated between the inner side air flow and the outer side air flow of the outlet air flow of the air supply device 71, so that the intensity of the outlet air flow is reduced and the outlet air flow is gradually diffused outwards, the radiation range is enlarged, and the outlet air flow is softer.
It should be noted that this embodiment is only one of the preferable solutions of the present invention, and the household appliance in the present invention is not limited to the floor fan, and may also be a table fan, a ceiling fan, a wall fan, a tower fan, a cooling fan or a warm air blower.
The technical scheme of the invention is explained in detail by combining the drawings, and the first fan blade component and the second fan blade component can rotate independently respectively through the nested structure of the first output shaft and the second output shaft so as to provide differentiated wind shapes according to the requirements of users, the disturbance inside the air outlet flow is small, and the integral structure arrangement of the air supply device is convenient.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. An air supply device, comprising:
the double-shaft motor is provided with a first output shaft and a second output shaft which extend out in the same direction, a hollow part which penetrates through the first output shaft along the axial direction is arranged in the first output shaft, and the second output shaft penetrates through the hollow part;
the first fan blade assembly is sleeved on the first output shaft and driven by the first output shaft to rotate;
the second fan blade component is sleeved on the second output shaft and driven by the second output shaft to rotate,
wherein one of the first fan blade assembly and the second fan blade assembly is arranged on the inner side of the other fan blade assembly along the radial direction;
the air outlet surface of the first fan blade component and the air outlet surface of the second fan blade component are in the same plane; the air inlet surface of the first fan blade component and the air inlet surface of the second fan blade component are in the same plane;
the first fan blade assembly includes: first flabellum support and first flabellum, second flabellum subassembly includes: the first fan blade support is annular, the inner side in the radial direction is of a hollow structure, the second fan blade component is arranged on the inner side of the first fan blade support in the radial direction, and the first fan blade component and the second fan blade component form an inner and outer nested structure; the distance between the inner edge and the outer edge of the second fan blade is larger than the distance between the inner edge and the outer edge of the first fan blade.
2. The air supply arrangement according to claim 1,
the first fan blade support is sleeved on the first output shaft, and the first fan blades are arranged on the outer side wall surface and/or the inner side wall surface of the first fan blade support along the circumferential direction;
the second fan blade support is sleeved on the second output shaft, and the second fan blades are arranged on the outer side wall surface and/or the inner side wall surface of the second fan blade support along the circumferential direction.
3. The blower according to claim 2, wherein an end of the first fan blade bracket close to the dual-shaft motor is sleeved on the first output shaft and is fixedly connected with the first output shaft, and the second fan blade assembly is disposed on an inner side of the first fan blade bracket along an axial direction.
4. The air supply arrangement according to claim 3,
the first fan blade support is close to one end face of the double-shaft motor, at least one air passing channel is arranged on the end face of the first fan blade support, and the air passing channel and the second fan blade are arranged correspondingly.
5. The blowing device of claim 2,
the second fan blade support is annular, and the first fan blade assembly is arranged on the inner side of the second fan blade support in the radial direction.
6. The air supply arrangement of claim 5,
one end, far away from the double-shaft motor, of the second fan blade support is sleeved on the second output shaft and fixedly connected with the second output shaft, and the first fan blade assembly is arranged on the inner side of the second fan blade support along the axial direction.
7. The air supply arrangement of claim 6,
and at least one air passing channel is arranged on the end face, far away from the double-shaft motor, of the second fan blade support, and the air passing channel and the first fan blade component are arranged correspondingly.
8. The device of claim 7, wherein the distance between the inner edge and the outer edge of the first fan blade is greater than the distance between the inner edge and the outer edge of the second fan blade.
9. The air supply device according to any one of claims 1 to 8, wherein the two-shaft motor includes:
the first driving assembly comprises a first stator structure and a first rotor structure, and the first output shaft is fixedly connected with the first rotor structure;
the second driving assembly comprises a second stator structure and a second rotor structure, the second output shaft is fixedly connected with the second rotor structure,
the first output shaft and the second output shaft are driven by the first driving assembly and the second driving assembly to rotate independently.
10. The air supply device according to claim 9, wherein an axis of the first output shaft coincides with an axis of the second output shaft.
11. The air supply apparatus of claim 10, further comprising:
the fan comprises a casing, one end of the casing is provided with a through hole, the double-shaft motor is arranged in the casing, the first output shaft and the second output shaft penetrate through the through hole and extend outwards, and the first fan blade assembly and the second fan blade assembly are arranged outside the casing.
12. The air supply apparatus of claim 11, further comprising:
the first mesh enclosure is arranged at one end of the shell, which is provided with the through hole, and the first mesh enclosure is detachably connected with the shell;
the second screen panel is located first screen panel is kept away from the one end of casing, the second screen panel with first screen panel can dismantle the connection, and just first screen panel with the inside formation of second screen panel connection back holds the cavity, first flabellum subassembly with second flabellum subassembly is located hold in the cavity.
13. A household appliance, characterized in that it comprises:
the air supply device of any one of the preceding claims 1 to 12;
the household appliance is a table fan, a floor fan, a ceiling fan, a wall fan, a tower fan, a cooling fan or a warm air blower.
CN201910871826.8A 2019-09-16 2019-09-16 Air supply device and household appliance Active CN112503006B (en)

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CN201910871826.8A CN112503006B (en) 2019-09-16 2019-09-16 Air supply device and household appliance
PCT/CN2020/072144 WO2021051731A1 (en) 2019-09-16 2020-01-15 Air supply device and household appliance

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DE10109621A1 (en) * 2001-02-28 2002-09-19 Delta Electronics Inc Serial ventilator fan e.g. for computer system, has outer frame enclosing independent carriers for successive fan wheels
CN101971464A (en) * 2008-03-06 2011-02-09 Itw有限公司 Bi-axial electromagnetic actuator
CN107040087A (en) * 2016-02-03 2017-08-11 日本电产艾莱希斯株式会社 Motor and propeller type thrust inducing device
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