CN110397609B

CN110397609B - Air supply assembly

Info

Publication number: CN110397609B
Application number: CN201910737493.XA
Authority: CN
Inventors: 朱惜惜
Original assignee: Zhonghe Zhiteng Construction Co ltd
Current assignee: ZHONGHE ZHITENG CONSTRUCTION Co.,Ltd.
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2021-01-05
Anticipated expiration: 2039-08-12
Also published as: CN110397609A

Abstract

The invention discloses an air supply assembly and relates to the technical field of mechanical equipment. The invention comprises a first induced draft shell, fan blades, a motor, an induced draft cover and a second induced draft shell; one end of the first induced draft shell is provided with a first arc cavity plate extending outwards, one end of the second induced draft shell is provided with a second arc cavity plate extending outwards, and the second arc cavity plate comprises a second inner surface body and a second outer surface body. The first arc-shaped cavity plate and the second arc-shaped cavity plate form an inner surface which is in clearance fit with the circumferential side rotating track surface of the fan blade, and the circumferential side rotating track surface of the fan blade forms airflow clearances with the first inner surface body and the second inner surface body respectively in the rotating process of the fan blade so as to increase air pressure, further generate air pressure difference on two sides of the fan blade and increase air flow.

Description

Air supply assembly

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a wind supply assembly for supplying wind power.

Background

The air supply assembly is commonly found in household appliances, such as hair dryers, fans, curling irons, etc., and is driven by a motor to rotate to generate air. The mode of the air supply system is a process of directly circulating air flow in the space where the fan blades are located, the air flow is mostly realized by controlling the rotating speed of the fan blades, and for air supply equipment such as a fan and the like, the diameter of the fan blades is large, and the fan blades occupy large space, so that the requirement of air volume is not influenced or improved as much as possible while the diameter of the fan blades is reduced, and related technologies are not available in the existing equipment or products.

In the conventional publication CN 105310244A-hair styling tool, referring to fig. 5 and 6, the air supply assembly 130 of the present embodiment is disposed in the handle 111 for supplying cold air and hot air to hair drawn into the top case 112, the air supply assembly 130 includes an air duct 131, a heating element (not shown) disposed in the air duct 131, a wind-pumping blade 133 connected to a lower end of the air duct 131, and a second motor 132 for driving the wind-pumping blade 133, an upper end of the air duct 131 is aligned with a lower end of the rotary cylinder 122, and the wind-pumping blade 133 is aligned with the air inlet 114 at the bottom of the handle 111. Under the driving of the second motor 132, the exhausting blade 133 can suck the outside air into the air guiding tube 131, and send the outside air into the rotary cylinder 122 through the air guiding tube, at this time, if the heating element works, hot air is generated, and if the heating element does not work, natural air (cold air) "is generated.

The prior CN 206556176U-air humidifying device discloses an air supply assembly, wherein the air supply assembly comprises a second support positioned on the air inlet side of a water containing tray set and an air blowing system arranged on the second support, the second support is fixedly connected with the first support, the air outlet direction of the air blowing system faces towards the water containing tray set, and the technical mode belongs to the prior conventional technical mode, namely, the air supply is carried out in a mode that fan blades are directly in a straight-through mode, and only the size is large, and the power supply size is used for adjusting the air supply amount.

Disclosure of Invention

The invention aims to provide an air supply assembly, wherein an inner surface which is in clearance fit with a peripheral rotating track surface of a fan blade is formed by a first arc-shaped cavity plate and a second arc-shaped cavity plate, and the peripheral rotating track surface of the fan blade forms air flow clearances with a first inner surface body and a second inner surface body respectively in the rotating process of the fan blade so as to increase air pressure, further generate air pressure difference on two sides of the fan blade and increase air flow, thereby solving the problems of large structure and insufficient air flow of the existing air supply assembly.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an air supply assembly, which comprises a first induced draft shell, fan blades, a motor, an induced draft cover and a second induced draft shell; one end of the first induced draft shell is provided with a first arc-shaped cavity plate extending outwards, and the first arc-shaped cavity plate comprises a first inner surface body and a first outer surface body; an inner threaded hole is formed in the end face of the first arc-shaped cavity plate; the first inner surface body is provided with a flow guide groove matched with the peripheral side surface track of the fan blade for flow guide; one end of the second induced draft shell is provided with a second arc cavity plate extending outwards, and the second arc cavity plate comprises a second inner surface body and a second outer surface body; the end surface of the second arc-shaped cavity plate is provided with a through hole; the end surface of the first arc-shaped cavity plate is matched with the end surface of the second arc-shaped cavity plate; the internal thread hole is concentrically matched with the through hole; the inner surface of the second induced draft shell is provided with a baffle ring; an inner filter cover and an outer filter cover are arranged between the second induced draft shell and the induced draft cover; the peripheral side rotating track surface of the fan blade is in clearance fit with the first inner surface body and the second inner surface body respectively.

Furthermore, one end of the first induced draft shell is also provided with a flange, and the end face of the flange is provided with a sealing channel matched with the sealing ring; the end face of the flange is also provided with a flange hole; the inner surface of the first induced draft shell is also provided with a plurality of brackets; one end of the support is fixed on an annular disc structure, and the support is uniformly distributed on the peripheral side of the annular disc structure.

Further, the motor is fixed on one surface of the annular disc structure, and the output shaft of the motor is fixed with the fan blades.

Furthermore, one end of the induced draft cover is provided with a horn mouth; the other end of the induced draft cover is provided with a connecting neck; the connecting neck is connected with the inner surface of the second induced draft shell, and the inner filter housing and the outer filter housing are limited by the connecting neck and the baffle ring; and air inducing holes are uniformly distributed on the peripheral side surface of the bell mouth of the air inducing cover.

Further, the first and second outside surfaces each extend outwardly; the first outer body extends outwardly relative to the first inner body; the second outer body extends outwardly relative to the second inner body.

Furthermore, the gap between the peripheral side rotating track surface of the fan blade and the first inner surface body and the gap between the peripheral side rotating track surface of the fan blade and the second inner surface body are within the range of 1mm-10 mm.

Further, the inner filter housing comprises a first inner ring and a first outer ring; the first outer ring is in clearance fit with the inner surface of the second induced draft shell; the first inner ring is a spherical ring, strip-shaped holes are formed in the surface of the first inner ring along the radial direction, and the strip-shaped holes are uniformly distributed in the surface of the first outer ring.

Further, the outer filter housing comprises a second inner ring and a second outer ring; the second outer ring is in clearance fit with the inner surface of the second induced draft shell; the second inner ring is a spherical ring, and through holes are uniformly distributed on the surface of the second inner ring.

Furthermore, the aperture of the through hole is larger than that of the threaded hole, and the difference is in the range of 1mm-3 mm.

Furthermore, the inner filter cover and the outer filter cover are arranged oppositely, and a cavity is formed in the center; the pressure generated by the rotation of the fan blades enables airflow in the air to sequentially pass through the induced draft cover, the outer filter cover, the inner filter cover and the first arc-shaped cavity plate and the second arc-shaped cavity plate to form a cavity.

The invention has the following beneficial effects:

1. the first arc-shaped cavity plate and the second arc-shaped cavity plate which extend outwards form an inner surface which is in clearance fit with the circumferential side rotating track surface of the fan blade, the circumferential side rotating track surface of the fan blade is in clearance fit with the first inner surface body and the second inner surface body respectively, and in the clearance range, the circumferential side rotating track surface of the fan blade forms airflow clearances with the first inner surface body and the second inner surface body respectively in the rotating process of the fan blade so as to increase the air pressure, further, the air pressure difference is generated on two sides of the fan blade, and the air flow is increased.

2. The first inner surface body is provided with the diversion trench matched with the peripheral side surface track of the fan blade, and the diversion trench is designed to guide wind formed by the peripheral side surface track of the fan blade into the air outlet of the first induced air shell along the diversion trench, so that the diversion effect is facilitated, and the fluidity of air flow is improved.

3. The first outer surface body and the second outer surface body are both extended outwards; the first outer surface body b extends outwards relative to the first inner surface body; the second outer surface body extends outwards relative to the second inner surface body, and the purpose is that the contact area when first arc chamber board and second arc chamber board are fixed each other is increased in order to be convenient for the trompil to fix.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a wind supply assembly according to a first embodiment;

FIG. 2 is a schematic view of the half-section of FIG. 1;

FIG. 3 is a schematic structural view of a first induced draft housing;

FIG. 4 is a schematic view of the half-section of FIG. 3;

FIG. 5 is a schematic structural view of a second induced draft housing;

FIG. 6 is a schematic view of the half-section of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 6 at A;

FIG. 8 is a schematic structural view of an induced draft cover;

FIG. 9 is a schematic view of a fan blade;

FIG. 10 is a schematic structural view of an outer filter housing;

FIG. 11 is a front view of the structure of FIG. 10;

FIG. 12 is a schematic structural view of an inner filter housing;

FIG. 13 is a front view of the structure of FIG. 12;

FIG. 14 is a top view of the structure of FIG. 12;

in the drawings, the components represented by the respective reference numerals are listed below:

1-a first induced draft shell, 2-a second induced draft shell, 3-an induced draft cover, 4-a motor, 5-a fan blade, 6-an inner filter cover, 8-an outer filter cover, 101-a flange, 102-a flange hole, 103-a first arc cavity plate, 104-a bracket, 105-an inner threaded hole, 106-a sealing channel, 201-a second arc cavity plate, 202-a through hole, 203-a baffle ring, 401-an output shaft, 601-a first inner ring, 602-a strip-shaped hole, 603-a first outer ring, 801-a second inner ring, 802-a second outer ring and 803-a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "outwardly extending," "upper," "lower," "end surface," "radial direction," "open," "length," "inner," "peripheral," and the like are used merely to facilitate description of the invention and to simplify description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Example one

Referring to fig. 1-2, the air supply assembly includes a first induced draft housing 1, fan blades 5, a motor 4, an induced draft housing 3, and a second induced draft housing 2, and the above structural features form a basic framework, and it is shown in the figure that the first induced draft housing 1 and the second induced draft housing 2 are both of a cylindrical structure.

Referring to fig. 3-4, one end of the first induced draft casing 1 is provided with a first arc-shaped cavity plate 103 extending outward, and the first arc-shaped cavity plate 103 includes a first inner surface body a and a first outer surface body b; the end surface of the first arc-shaped cavity plate 103 is provided with an internal threaded hole 105; one end of the first induced draft shell 1 is also provided with a flange 101, and the end face of the flange 101 is provided with a sealing channel 106 matched with the sealing ring; the end face of the flange 101 is also provided with a flange hole 102; the flange 101 at one end of the first air inducing housing 1 may be used to fit another air supply assembly (see embodiment two).

The inner surface of the first induced draft shell 1 is also provided with four brackets 104; the bracket 104 is fixed at one end on a ring-shaped disc structure 105 and uniformly distributed on the periphery of the ring-shaped disc structure 105, the ring-shaped disc structure 105 is used for installing the motor 4, and a wire passing groove or a wire clamp for fixing a wire is arranged on the leeward side of the bracket 104. The motor 4 is fixed on one surface of the annular disc structure 105, and the output shaft 401 of the motor 4 is fixed with the fan blades 5.

The first inner surface body a is provided with a diversion trench matched with the peripheral side track of the fan blade 5, and the diversion trench is designed to guide wind formed by the peripheral side track of the fan blade 5 into the air outlet of the first induced air shell 1 along the diversion trench.

Referring to fig. 5-6, a second arc-shaped cavity plate 201 extending outward is disposed at one end of the second induced air casing 2, and the second arc-shaped cavity plate 201 includes a second inner surface aa and a second outer surface bb; the end surface of the second arc-shaped cavity plate 201 is provided with a through hole 202; the first and second outside bodies b, bb extend outward; the first outside body b extends outward relative to the first inside body a; the second outer surface body bb extends outwards relative to the second inner surface body aa, so as to increase the contact area when the first arc-shaped cavity plate 103 and the second arc-shaped cavity plate 201 are fixed to each other, and facilitate the fixing through the opening.

The end surface of the first arc-shaped cavity plate 103 is matched with the end surface of the second arc-shaped cavity plate 201; the female screw hole 105 is concentrically fitted to the through hole 202; the aperture of the through hole 202 is larger than that of the threaded hole 105, and the difference is in the range of 1mm-3 mm. The first arc-shaped cavity plate 103 and the second arc-shaped cavity plate 201 are fixed to each other by screws to form an inner surface in clearance fit with the circumferential side rotating track surface of the fan blade 5, i.e. the circumferential side rotating track surface of the fan blade 5 is in clearance fit with the first inner surface body a and the second inner surface body aa respectively. The inner surface of the second induced draft shell 2 is provided with a baffle ring 203; an inner filter cover 6 and an outer filter cover 8 are matched between the second induced draft shell 2 and the induced draft cover 3.

Referring to fig. 9, the gap between the circumferential side rotation trajectory surface of the fan blade 5 and the first inner surface body a and the second inner surface body aa is in the range of 1mm-10mm, and in the gap range, the circumferential side rotation trajectory surface of the fan blade 5 forms an airflow gap with the first inner surface body a and the second inner surface body aa respectively during the rotation process of the fan blade 5, so as to increase the air pressure, thereby generating an air pressure difference between two sides of the fan blade 5 and increasing the air flow.

Referring to fig. 10-14, the inner filter housing 6 includes a first inner ring 601 and a first outer ring 603; the first outer ring 603 is in clearance fit with the inner surface of the second induced draft housing 2; the first inner ring 601 is a spherical ring, and is provided with strip-shaped holes 602 on the surface thereof along the radial direction, the strip-shaped holes 602 are uniformly distributed on the surface of the first outer ring 603, and the filter guide holes of the strip-shaped holes 602 are arranged for carding the entering airflow so that the entering airflow enters along the strip-shaped holes 602 uniformly distributed along the radial direction, and then the entering airflow is sucked in a rotating manner under the action of the fan 5 to form layers of the airflow and increase the flow speed of the airflow.

Referring to fig. 10-11, the outer filter housing 8 includes a second inner ring 801 and a second outer ring 802; the second outer ring 802 is in clearance fit with the inner surface of the second air inducing shell 2; the second inner ring 801 is a spherical ring, and through holes 803 are uniformly distributed on the surface of the second inner ring, and the arrangement is used for preventing floating objects from entering the assembly and preventing the floating objects from mistakenly touching internal devices.

Referring to fig. 12-14, the inner filter housing 6 is disposed opposite to the outer filter housing 8, and a cavity is formed in the center; the pressure generated by the rotation of the fan blade 5 makes the airflow in the air sequentially pass through the induced air cover 3, the outer filter cover 8 and the inner filter cover 6, and then pass through the first arc-shaped cavity plate 103 and the second arc-shaped cavity plate 201 to form a cavity for pressurization, thereby realizing the design of increasing the air volume of the small-diameter fan blade.

Referring to fig. 8, one end of the induced draft cover 3 is provided with a bell mouth 302; the other end of the induced draft cover 3 is provided with a connecting neck 303; the connecting neck 303 is connected with the inner surface of the second induced draft shell 2, and the inner filter housing 6 and the outer filter housing 8 are limited by the connecting neck 303 and the baffle ring 203; the peripheral side of the bell mouth 302 of the induced draft cover 3 is uniformly provided with induced draft holes 304.

Example two

The overall structure is as shown in the first embodiment, in order to increase the wind power, the other wind supply component can be superposed, and the basic superposition mode is as follows: based on the air supply assembly shown in the first embodiment, the induced draft cover 3 added at one end of the other air supply assembly is removed, and a flange is arranged at one end of the second induced draft shell 2 and is used for matching with the flange of the air supply assembly shown in the first embodiment, so that a plurality of the induced draft covers can be sequentially overlapped.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean 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 preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An air supply assembly comprises a first induced draft shell (1), fan blades (5), a motor (4), an induced draft cover (3) and a second induced draft shell (2); the method is characterized in that:

one end of the first induced draft shell (1) is provided with a first arc-shaped cavity plate (103) extending outwards, and the first arc-shaped cavity plate (103) comprises a first inner surface body (a) and a first outer surface body (b); an inner threaded hole (105) is formed in the end face of the first arc-shaped cavity plate (103);

the first inner surface body (a) is provided with a flow guide groove matched with the peripheral side surface track of the fan blade (5);

a second arc-shaped cavity plate (201) extending outwards is arranged at one end of the second induced air shell (2), and the second arc-shaped cavity plate (201) comprises a second inner surface body (aa) and a second outer surface body (bb); the end face of the second arc-shaped cavity plate (201) is provided with a through hole (202);

the end surface of the first arc-shaped cavity plate (103) is matched with the end surface of the second arc-shaped cavity plate (201); the female screw hole (105) is concentrically fitted with the through hole (202);

a baffle ring (203) is arranged on the inner surface of the second induced draft shell (2);

an inner filter cover (6) and an outer filter cover (8) are arranged between the second induced draft shell (2) and the induced draft cover (3);

the peripheral side rotating track surface of the fan blade (5) is in clearance fit with the first inner surface body (a) and the second inner surface body (aa) respectively;

a flange (101) is further arranged at one end of the first induced draft shell (1), and a sealing channel (106) matched with the sealing ring is arranged on the end face of the flange (101); the end face of the flange (101) is also provided with a flange hole (102);

the inner surface of the first induced draft shell (1) is also provided with a plurality of brackets (104); one end of the bracket (104) is fixed on an annular disc structure and is uniformly distributed on the peripheral side of the annular disc structure;

the motor (4) is fixed on one surface of the annular disc structure, and an output shaft (401) of the motor (4) is fixed with the fan blades (5);

one end of the induced draft cover (3) is provided with a bell mouth (302); the other end of the induced draft cover (3) is provided with a connecting neck (303); the connecting neck (303) is connected with the inner surface of the second induced draft shell (2), and the inner filter cover (6) and the outer filter cover (8) are limited by the connecting neck (303) and the baffle ring (203); the peripheral side surface of the bell mouth (302) of the air draft cover (3) is uniformly provided with air draft holes (304);

said first (b) and second (bb) outer bodies each extending outwardly; the first outer surface body (b) extends outwards relative to the first inner surface body (a); the second outer body (bb) extends outwardly with respect to the second inner body (aa);

the clearance between the circumferential side rotating track surface of the fan blade (5) and the first inner surface body (a) and the second inner surface body (aa) is within the range of 1mm-10mm respectively;

the inner filter housing (6) comprises a first inner ring (601) and a first outer ring (603); the first outer ring (603) is in clearance fit with the inner surface of the second induced draft shell (2); the first inner ring (601) is a spherical ring, strip-shaped holes (602) are formed in the surface of the first inner ring (601) along the radial direction, and the strip-shaped holes (602) are uniformly distributed in the surface of the first inner ring (601);

the outer filter casing (8) comprises a second inner ring (801) and a second outer ring (802); the second outer ring (802) is in clearance fit with the inner surface of the second induced draft shell (2); the second inner ring (801) is a spherical ring, and through holes (803) are uniformly distributed on the surface of the second inner ring;

the aperture of the through hole (202) is larger than that of the threaded hole (105), and the difference is in the range of 1mm-3 mm;

the inner filter cover (6) and the outer filter cover (8) are arranged oppositely, and a cavity is formed in the center; the pressure generated by the rotation of the fan blade (5) enables airflow in the air to sequentially pass through the induced draft cover (3), the outer filter cover (8) and the inner filter cover (6) and then pass through the first arc-shaped cavity plate (103) and the second arc-shaped cavity plate (201) to form a cavity;

one said air supply assembly can be stacked with another said air supply assembly, the stacking mode is: and on the basis of one air supply assembly, the air draft cover (3) added at one end of the other air supply assembly is removed, and a flange is arranged at one end of the second air draft shell (2) and matched with the flange (101) of the one air supply assembly.