Pressure mixed flow fan capable of deforming and rotating

Abstract

The utility model relates to the technical field of fans, and discloses a deformable and rotatable pressure mixed flow fan which comprises a fan head, a rotating device and a deformable strip assembly. The fan head comprises a first shell, a second shell, a first motor and fan blades. The first shell comprises a first outer ring, a motor mounting seat and a first pressurizing sheet; the first outer ring, the first pressurizing sheet and the motor mounting seat form a first speed-increasing air duct; the second shell comprises a second outer ring, a pressurizing seat and a second pressurizing sheet; the inner wall of the second outer ring, the second pressurizing sheet and the pressurizing seat form a second accelerating air duct; after airflow is accelerated through the first acceleration air duct and the second acceleration air duct, the air volume and the air supply distance are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially in a kind of deformable pressure mixed flow fan of rotation. BACKGROUND

[0002] Fan is the electric appliance for cooling, rely on electric power drive first motor to drive fan blade rotation makes airflow flow, utilize wind energy to achieve the effect of heat dissipation.

[0003] The desktop fan on the existing office workstation is usually placed on the desktop to blow and use, but due to the application scene problem, it cannot be placed and the use is limited. The axial flow fan currently used has the problems of low wind pressure and short air supply distance, and cannot blow and cool at a slightly far distance. At the same time, the fan usually blows air in a fixed direction, and the air supply range is limited.

[0004] Therefore, improvement is needed. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem in the prior art, and provides a deformable pressure mixed flow fan of rotation to solve the problems in the background art.

[0006] To solve the above technical problems, the utility model adopts the technical scheme as follows: A deformable rotary pressure mixed-flow fan, comprising: a fan head for driving air flow generation, a rotating device for driving the fan head to rotate, and a deformation strip assembly for fixedly connecting with the outside; wherein the rotating device is connected with the fan head; the deformation strip assembly is connected with the rotating device; the fan head comprises a first shell, a second shell, a first motor and a fan blade; the first shell is located at the air inlet end; the first shell comprises a first outer ring, a motor mounting seat and more than one first pressure piece; the first motor is arranged on the motor mounting seat; the fan blade is arranged on the output end of the first motor; the first pressure piece is distributed on the inner wall of the first outer ring and extends to connect the outer peripheral edge of the motor mounting seat; the inner wall of the first outer ring, the first pressure piece and the motor mounting seat form a first speed-increasing air duct, the first speed-increasing air duct increases the radial air passage area to be small through the first pressure piece to form air flow pressure increasing speed; the second shell is arranged at the air outlet end of the first shell; the second shell comprises a second outer ring, a pressure seat and more than one second pressure piece; the second pressure piece is distributed on the inner wall of the second outer ring and extends to connect the outer peripheral edge of the pressure seat; the inner wall of the second outer ring, the second pressure piece and the pressure seat form a second speed-increasing air duct, the second speed-increasing air duct increases the radial air passage area to be small through the second pressure piece to form air flow pressure increasing speed; wherein the first motor drives the fan blade to rotate to generate negative pressure at the air inlet end to guide the air flow to the first speed-increasing air duct; the air flow is guided to the second speed-increasing air duct through the first pressure piece of the first outer ring; the air flow is blown out through the second pressure piece in the second speed-increasing air duct, so that the air flow increases the air volume and the air supply distance after increasing the speed through the first speed-increasing air duct and the second speed-increasing air duct.

[0007] Further, a third shell is arranged at the air outlet end of the second shell; the third shell comprises a third outer ring, a wind guide seat and more than one third pressure piece; the third pressure piece is distributed on the inner wall of the third outer ring and extends to connect the outer peripheral edge of the wind guide seat; the third outer ring, the third pressure piece and the wind guide seat form a third speed-increasing air duct, the third speed-increasing air duct increases the radial air passage area to be small through the third pressure piece to form air flow pressure increasing speed to guide the air flow to be blown out.

[0008] Further, a first transition surface is arranged on the outer peripheral surface of the motor mounting seat; a second transition surface is arranged on the outer peripheral surface of the pressure seat; a third transition surface is arranged on the outer peripheral surface of the wind guide seat; the first transition surface, the second transition surface and the third transition surface are sequentially arranged to form an arc surface or an inclined surface for uniform transition to guide the air flow.

[0009] Further, the first pressurizing fins are distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressurizing fins of the first speed-increasing air duct guide the airflow in the same direction or gather the airflow in the opposite direction to the second speed-increasing air duct, and the second pressurizing fins are distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressurizing fins blow the airflow in the opposite direction or in the same direction, achieving the effect of pressurizing and gathering the airflow.

[0010] Further, the first motor includes a stator and a rotor, the stator is fixed on the motor mounting seat, and the rotor is arranged on the fan blade, and the rotor is sleeved on the stator.

[0011] Further, the motor mounting seat is provided with a protruding column extending in the axial direction and hollow inside; the fan blade includes a hub portion and blades uniformly arranged on the outer peripheral surface of the hub portion, the hub portion has a receiving portion arranged inwardly recessed; the stator includes an iron core inserted into the protruding column and a coil wound on the iron core; the rotor includes a rotating shaft arranged in the receiving portion in the axial direction and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted into the protruding column.

[0012] Further, the air guide seat is provided with a face cover on the side close to the air outlet end, and there is a mounting space between the face cover and the air guide seat, a digital display panel is arranged in the mounting space, and the digital display panel is used for displaying and / or controlling parameters; a battery is arranged in the mounting space, and the battery is used for providing power.

[0013] Further, the air inlet cover is provided with a hollow accommodating portion from the air inlet end to the air outlet end, and at least a part of the accommodating portion extends to the first shell, the second shell or the third shell; to form a first shell or a first shell, a second shell or a first shell, a second shell, a third shell, or to form an accommodation in the first shell or the first shell, the second shell or the first shell, the second shell, the third shell; the air inlet cover is provided with an air inlet grille at the air inlet end, and the air inlet grille includes connection strips uniformly distributed in the circumference, and the connection strips extend radially to the inner wall of the accommodating portion to form a gap to prevent foreign matter from entering.

[0014] Further, the rotating device includes a mounting shell fixedly connected with the fan head, a second motor arranged in the mounting shell, and a limiting piece arranged at the output end of the second motor; the second motor is fixed on the fan head, the limiting piece is movably connected with the mounting shell, and the output end of the second motor is embedded on the limiting piece to be fixed; when the second motor drives the fan head to rotate, the mounting shell rotates relative to the limiting piece.

[0015] Further, the limiting piece is provided with a protruding convex part on the circumferential edge, and the end face of the mounting shell in contact with the limiting piece is provided with a sliding groove matched with the convex part; when the second motor is driven, the convex part rotates and is limited in the sliding groove; the deformed strip assembly includes one or more bendable legs, and the limiting piece is provided with an embedded part for mounting the legs, and the legs are mounted and fixed in the embedded part.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The deformed strip assembly is used in the structure, which can be placed on the desktop or wound on external components for fixation, such as in the application scene of a pipe. It has better adaptability and wide application range.

[0018] 2. The fan head adopts a double-increase-speed air duct or a three-increase-speed air duct form. When the airflow passes through the first increase-speed air duct, the first pressure-increasing piece arranged in the first increase-speed air duct causes the radial ventilation area to become smaller, thereby achieving pressure increase of the airflow. At the same time, the first increase-speed air duct is located at the air inlet end, thereby being able to absorb surrounding air and increase the air volume. When the airflow passes through the second increase-speed air duct, the second pressure-increasing piece arranged in the second increase-speed air duct causes the radial ventilation area to become smaller, thereby further increasing the pressure of the airflow in the second section. When the airflow passes through the third increase-speed air duct, the third pressure-increasing piece arranged in the third increase-speed air duct causes the radial ventilation area to become smaller, thereby further increasing the pressure of the airflow in the third section, and thereby achieving increase of the air volume and the air supply distance of the airflow.

[0019] 3. A rotating device is arranged between the deformed strip assembly and the fan head, and the rotating device is used to drive the fan head to rotate, so as to increase the air supply range of the fan head.

[0020] 4. The first pressure-increasing piece of the first increase-speed air duct is arranged in a clockwise or counterclockwise distribution, and the second pressure-increasing piece of the second increase-speed air duct is arranged in a counterclockwise or clockwise distribution. Under the combined action of the two, the airflow can be guided first and then aggregated, so as to adjust the blowing direction of the airflow; or the airflow can be aggregated first and then guided, so as to adjust the blowing direction of the airflow. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of an embodiment of the utility model.

[0022] Figure 2 is Figure 1 is an exploded schematic diagram of the fan head of

[0023] Figure 3 is Figure 1 is a sectional view of the fan head of

[0024] Figure 4is another embodiment structure schematic view of the utility model.

[0025] Figure 5 is Figure 4 another angle structure schematic view.

[0026] Figure 6 is Figure 4 partially exploded structure schematic view.

[0027] Figure 7 is Figure 4 exploded structure schematic view.

[0028] Figure 8 is first shell structure schematic view.

[0029] Figure 9 is second shell structure schematic view.

[0030] Figure 10 is third shell structure schematic view.

[0031] Figure 11 is fan head cross section schematic view.

[0032] Figure 12 is fan head partial cross section schematic view.

[0033] Figure 13 is fan blade structure schematic view.

[0034] Figure 14 is stator and rotor structure schematic view.

[0035] Figure 15 is air inlet cover structure schematic view.

[0036] Figure 16 is rotating device structure schematic view.

[0037] Figure 17 is limiting piece structure schematic view.

[0038] Figure 18 is mounting shell structure schematic view.

[0039] Figure 19 is deformation strip assembly structure schematic view.

[0040] Figure 20 is limiting piece structure schematic view.

[0041] Fig. 1 is a fan head; 2 is a rotating device; 3 is a deformation strip assembly; 4 is a first shell; 5 is a second shell; 6 is a first motor; 7 is a fan blade; 8 is a first outer ring; 9 is a motor mounting seat; 10 is a first pressurizing piece; 11 is a first speed-increasing air duct; 12 is a second outer ring; 13 is a pressurizing seat; 14 is a second pressurizing piece; 15 is a second speed-increasing air duct; 16 is a third shell; 17 is a third outer ring; 18 is a wind guide seat; 19 is a third pressurizing piece; 20 is a third speed-increasing air duct; 21 is a first transition surface; 22 is a second transition surface; 23 is a third transition surface; 24 is a stator; 25 is a rotor; 26 is a convex column; 27 is a hub portion; 28 is a blade; 29 is a storage portion; 30 is an iron core; 31 is a coil; 32 is a rotating shaft; 33 is a magnetic ring; 34 is a surface cover; 35 is a digital display panel; 36 is an air inlet cover; 37 is a containing portion; 38 is a mounting shell; 39 is a second motor; 40 is a limiting piece; 41 is a convex portion; 42 is a sliding groove; 43 is a supporting leg; 44 is an embedded portion. DETAILED DESCRIPTION

[0042] The utility model will be explained further in detail below in combination with the drawings.

[0043] The embodiments described with reference to the drawings are exemplary and are intended to explain the present application, and are not understood as limiting the present application. In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated thereby. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0044] As Figures 1-11As shown, a deformable rotating pressure mixed-flow fan is provided, comprising: a fan head 1 for driving air flow, a rotating device 2 for driving the fan head 1 to rotate, and a deformation strip assembly 3 for fixedly connecting with the outside curve; wherein the rotating device 2 is connected with the fan head 1; the deformation strip assembly 3 is connected with the rotating device 2; the fan head 1 comprises a first shell 4, a second shell 5, a first motor 6, and a fan blade 7; the first shell 4 is located at the air inlet end; the first shell 4 comprises a first outer ring 8, a motor mounting seat 9, and one or more first pressure pieces 10; the first motor 6 is arranged on the motor mounting seat 9; the fan blade 7 is arranged on the output end of the first motor 6; the first pressure pieces 10 are distributed on the inner wall of the first outer ring 8 and extend to connect the outer peripheral edge of the motor mounting seat 9; the inner wall of the first outer ring 8, the first pressure pieces 10, and the motor mounting seat 9 form a first speed-increasing air duct 11, which increases the radial air passage area to cause the air flow to be pressurized and speeded up; the second shell 5 is arranged at the air outlet end of the first shell 4; the second shell 5 comprises a second outer ring 12, a pressure seat 13, and one or more second pressure pieces 14; the second pressure pieces 14 are distributed on the inner wall of the second outer ring 12 and extend to connect the outer peripheral edge of the pressure seat 13; the inner wall of the second outer ring 12, the second pressure pieces 14, and the pressure seat 13 form a second speed-increasing air duct 15, which increases the radial air passage area to cause the air flow to be pressurized and speeded up; wherein the first motor 6 drives the fan blade 7 to rotate to generate negative pressure at the air inlet end to guide the air flow to the first speed-increasing air duct 11; the air flow is pressurized by the first pressure pieces 10 of the first outer ring 8 and guided to the second speed-increasing air duct 15; the air flow is pressurized by the second pressure pieces 14 in the second speed-increasing air duct 15 and blown out, so that the air flow is speeded up after passing through the first speed-increasing air duct 11 and the second speed-increasing air duct 15, thereby increasing the air volume and the air supply distance.

[0045] Reference Figure 1 , Figures 4-6 In view of the technical problems described in the background art, a deformable rotating pressure mixed-flow fan is provided, mainly comprising a fan head 1, a rotating device 2, and a deformation strip assembly 3.

[0046] The deformable strip assembly 3 can be connected and fixed to external components by bending and deforming. For example, when the fan needs to be connected to a pipe, the user can bend and deform the deformable strip assembly 3 to wrap around the pipe and achieve the connection; or when the fan needs to be placed on a table, the deformable strip assembly 3 can be bent to form a support structure to support the fan and place it on the table; or when it needs to be used handheld, the user can hold the deformable strip assembly 3 to blow air. It can adapt to different usage scenarios, has better adaptability, a wide range of applications, and can be changed according to the user's needs.

[0047] For the rotating device 2, a rotating device 2 is set between the fan head 1 and the deformable strip assembly 3. The rotating device 2 is connected to the fan head 1. When in use, the rotating device 2 drives the fan head 1 to rotate and deliver air, thereby increasing the air delivery range.

[0048] The fan head 1 is used to drive and generate airflow. The fan head 1 mainly includes a first housing 4, a second housing 5, a first motor 6, and fan blades 7.

[0049] like Figure 8 The first housing 4 includes a motor mounting base 9, a first pressure plate 10, and a first outer ring 8. The motor mounting base 9 and the first outer ring 8 can be integrally formed or be independent components. The motor mounting base 9 can be located at the air inlet or air outlet of the first outer ring 8. As an feasible technical approach, the motor mounting base 9 and the first outer ring 8 are integrally formed and the motor mounting base 9 is located at the air outlet of the first outer ring 8. The first pressure plate 10 can be evenly distributed or unevenly distributed between the first outer ring 8 and the motor mounting base 9. Preferably, the first pressure plate 10 is evenly distributed circumferentially. Due to the presence of the first pressure plate 10, the radial ventilation area of ​​the airflow passing through the first outer ring 8 is reduced. Since the first housing 4 is located at the air inlet, the airflow can gather the surrounding airflow and increase the air volume. At the same time, it pressurizes the airflow and increases the airflow speed.

[0050] like Figure 9The second shell 5 comprises a second outer ring 12, a pressurizing seat 13 and a second pressurizing sheet 14, wherein the second outer ring 12, the pressurizing seat 13 and the second pressurizing sheet 14 can be integrally formed or independent components, preferably, the second outer ring 12, the pressurizing seat 13 and the second pressurizing sheet 14 are integrally formed, the second shell 5 can be integrally formed or independent components, the second pressurizing sheet 14 can be uniformly distributed or unevenly distributed between the second outer ring 12 and the pressurizing seat 13, preferably, the second pressurizing sheet 14 is uniformly distributed in the circumferential direction. The existence of the second pressurizing sheet 14 in the second speed-increasing air duct 15 causes the radial air area of the second outer ring 12 to become smaller, further pressurizing the airflow and increasing the airflow speed.

[0051] Therefore, by setting the double speed-increasing air duct, when the airflow passes through the first speed-increasing air duct 11, the first pressurizing sheet 10 arranged in the first speed-increasing air duct 11 causes the radial air area to become smaller, thereby pressurizing the airflow; meanwhile, the first speed-increasing air duct 11 is located at the air inlet end, thereby being capable of absorbing surrounding air and increasing the air volume; when the airflow passes through the second speed-increasing air duct 15, the second pressurizing sheet 14 arranged in the second speed-increasing air duct 15 causes the radial air area to become smaller, thereby further pressurizing the airflow in the second stage and blowing out, increasing the air volume and the air supply distance.

[0052] The utility model also includes third shell 16, second shell 5's air outlet end is established at third shell 16, third shell 16 includes third outer ring 17, air guide seat 18 and more than one third pressurizing sheet 19, third pressurizing sheet 19 distributes in third outer ring 17 inner wall and extends in the connection third outer ring 17 outer wall edge of air guide seat 18, third outer ring 17, third pressurizing sheet 19 and air guide seat 18 form third speed-increasing air duct 20, third speed-increasing air duct 20 increases the radial air area to become smaller through third pressurizing sheet 19 and forms the pressurization of airflow to make the airflow guide blows out.

[0053] As Figure 10The third housing 16 includes a third outer ring 17, an air guide seat 18, and a third pressure plate 19. The third outer ring 17, air guide seat 18, and third pressure plate 19 can be integrally formed or independent components. Preferably, the third outer ring 17, air guide seat 18, and third pressure plate 19 are integrally formed. The third housing 16 can be integral with the second housing 5, or integral with the second housing 5 and the first housing 4, or the third housing 16, the second housing 5, and the first housing 4 can be independent components. The third pressure plate 19 can be evenly or unevenly distributed between the third outer ring 17 and the air guide seat 18. Preferably, the third pressure plate 19 is evenly distributed circumferentially. The presence of the third pressure plate 19 in the third speed-increasing air duct 20 reduces the radial ventilation area of ​​the airflow passing through the third outer ring 17, further pressurizing the airflow and increasing its velocity.

[0054] The above-mentioned three-speed-increasing air duct configuration involves the following steps: When the airflow passes through the first speed-increasing air duct 11, the first pressure plate 10 installed in the first speed-increasing air duct 11 reduces the radial ventilation area, thereby pressurizing the airflow. At the same time, the first speed-increasing air duct 11 is located at the air inlet, which allows it to draw in surrounding air and increase the airflow volume. When the airflow passes through the second speed-increasing air duct 15, the second pressure plate 14 installed in the second speed-increasing air duct 15 reduces the radial ventilation area, further pressurizing the airflow in the second stage. When the airflow passes through the third speed-increasing air duct 20, the third pressure plate 19 installed in the third speed-increasing air duct 20 reduces the radial ventilation area, further pressurizing the airflow in the third stage, thereby increasing the airflow volume and the air delivery distance.

[0055] refer to Figures 8-10 , Figure 12 As shown, the outer peripheral surface of the motor mounting base 9 is provided with a first transition surface 21; the outer peripheral surface of the booster base 13 is provided with a second transition surface 22; the outer peripheral surface of the air guide base 18 is provided with a third transition surface 23; the first transition surface 21, the second transition surface 22 and the third transition surface 23 are sequentially attached to form a uniformly transitioning arc surface or inclined surface to guide the airflow.

[0056] As a preferred embodiment, the outer circumferential surface of the motor mounting seat 9 is provided with a first transition surface 21 from the air inlet end to the air outlet end, the outer circumferential surface of the booster seat 13 is provided with a second transition surface 22 from the air inlet end to the air outlet end, and the outer circumferential surface of the air guide seat 18 is provided with a third transition surface 23 from the air inlet end to the air outlet end. The first transition surface 21, the second transition surface 22 and the third transition surface 23 increase radially and are in close contact from the air inlet end to the air outlet end. Through the structure, the first transition surface 21, the second transition surface 22 and the third transition surface 23 form an arc surface or an inclined surface, and there is no gap between the first transition surface 21, the second transition surface 22 and the third transition surface 23. On the one hand, during the blowing process, the airflow is guided to blow out through the first transition surface 21, the second transition surface 22 and the third transition surface 23. Due to the radial increase structure, the airflow can be pressurized, the air pressure of the airflow can be increased, the air supply distance can be increased, and on the other hand, due to the close contact of the first transition surface 21, the second transition surface 22 and the third transition surface 23, the wind noise can be reduced, and the airflow can be guided to blow out.

[0057] Reference Figures 8-9 As shown, the first pressurizing piece 10 is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressurizing piece 10 of the first speed-increasing air duct 11 guides the airflow in the same direction or aggregates the airflow in the opposite direction to the second speed-increasing air duct 15. The second pressurizing piece 14 is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressurizing piece 14 blows out the airflow in the opposite direction or in the same direction, achieving the effect of pressurizing and aggregating the airflow.

[0058] In an implementable manner, the first pressurizing piece 10 is arranged clockwise and the second pressurizing piece 14 is arranged counterclockwise. Since the airflow moves centrifugally along the periphery of the fan blade 7 under the driving of the fan blade 7, the first pressurizing piece 10 of the first speed-increasing air duct 11 is arranged in the opposite direction of the airflow movement, and the first pressurizing piece 10 aggregates the wind moving in all directions to change the flow direction of the airflow. The airflow passing through the first speed-increasing air duct 11 is guided to the second speed-increasing air duct 15, and the second pressurizing piece 14 of the second speed-increasing air duct 15 is arranged counterclockwise. Since the counterclockwise arrangement of the second pressurizing piece 14 is the same as the movement direction of the airflow, the second pressurizing piece 14 guides the aggregated airflow, and then the wind passing through the second speed-increasing air duct 15 blows out in the front. Avoiding the dispersion of the airflow, causing the loss of air volume, achieving the effect of aggregating and pressurizing the airflow.

[0059] In another implementable manner, the first pressurizing sheet 10 is arranged counterclockwise and the second pressurizing sheet 14 is arranged clockwise. Since the airflow is centrifugally moved along the periphery of the fan blade 7 under the driving of the fan blade 7, the first pressurizing sheet 10 of the first speed-increasing air duct 11 is arranged in the same direction as the airflow, so that the first pressurizing sheet 10 guides and pressurizes the airflow moving to the periphery. Since the second pressurizing sheet 14 is arranged clockwise in the opposite direction of the airflow, the second pressurizing sheet 14 can gather the airflow and change the flow direction of the airflow, so that the airflow can be blown out in a front direction when blown out, avoiding the dispersion of the airflow and the loss of air volume.

[0060] Reference Figures 13-14 As shown, the first motor 6 includes a stator 24 and a rotor 25, the stator 24 is fixed on the motor mounting seat 9, the rotor 25 is arranged on the fan blade 7, and the rotor 25 is sleeved on the stator 24. In implementation, the first motor 6 can be in the form of a brush motor or a brushless motor.

[0061] The motor mounting seat 9 is provided with a convex column 26 extending in the axial direction and hollow inside; the fan blade 7 includes a hub portion 27 and blades 28 uniformly arranged on the outer peripheral surface of the hub portion 27, the hub portion 27 has a receiving portion 29 arranged inwardly recessed; the stator 24 includes an iron core 30 inserted on the convex column 26 and a coil 31 wound on the iron core 30; the rotor 25 includes a rotating shaft 32 arranged in the receiving portion 29 in the axial direction and a magnetic ring 33 attached to the radial inner wall of the receiving portion 29, and the rotating shaft 32 is inserted into the convex column 26.

[0062] Preferably, as an implementable technical solution, the first motor 6 adopts an outer rotor brushless motor. In structure, the hub portion 27 of the fan blade 7 is provided with the receiving portion 29, the fan blade 7 is used as the mounting position of the rotor 25, the magnetic ring 33 and the rotating shaft 32 of the rotor 25 are arranged at the receiving portion 29 position, thereby optimizing the structure and saving the number of components. At the same time, the hollow convex column 26 is arranged on the motor mounting seat 9, which is convenient for the rotating shaft 32 to be inserted into the convex column 26 for positioning. At the same time, the iron core 30 and the coil 31 of the stator 24 can be sleeved on the convex column 26 for positioning. The designed outer rotor 25 brushless motor structure realizes the driving of the fan blade 7, which is more compact in structure and saves the number of components, thereby reducing the cost.

[0063] As Figure 7As shown, the air guide base 18 is provided with a face cover 34 on the side close to the air outlet end, and an installation space is formed between the face cover 34 and the air guide base 18, and a digital display panel 35 is arranged in the installation space, and the digital display panel 35 is used for displaying and / or controlling parameters. The digital display panel 35 can be used to display the battery capacity, the wind speed gear, and the function of starting the fan operation. A battery is arranged in the installation space, and the battery is used to provide power, and a power supply interface is arranged on the fan head 1, and the power supply interface is used to connect the power supply. In use, the power supply interface can be directly connected with the external power supply for power driving, or the battery can be used for power driving of the fan, or the combination of the two can be used for power driving.

[0064] Reference Figure 15 As shown, the air guide base 18 is provided with a face cover 34 on the side close to the air outlet end, and an installation space is formed between the face cover 34 and the air guide base 18, and a digital display panel 35 is arranged in the installation space, and the digital display panel 35 is used for displaying and / or controlling parameters. The digital display panel 35 can be used to display the battery capacity, the wind speed gear, and the function of starting the fan operation. A battery is arranged in the installation space, and the battery is used to provide power, and a power supply interface is arranged on the fan head 1, and the power supply interface is used to connect the power supply. In use, the power supply interface can be directly connected with the external power supply for power driving, or the battery can be used for power driving of the fan, or the combination of the two can be used for power driving.

[0065] The air inlet cover 36 is hollow to form the accommodating portion 37, and the air inlet cover 36 can be arranged on one side of the first shell 4. In a first embodiment, the air inlet cover 36 can accommodate the first shell 4, the second shell 5 and the third shell 16 through the accommodating portion 37. In a second embodiment, the air inlet cover 36 can accommodate the first shell 4 and the second shell 5 through the accommodating portion 37. In a third embodiment, the air inlet cover 36 can accommodate the first shell 4. In a fourth embodiment, the accommodating portion 37 of the air inlet cover 36 can be accommodated in the first shell 4, the second shell 5 and the third shell 16. In a fifth embodiment, the accommodating portion 37 of the air inlet cover 36 can be accommodated in the first shell 4 and the second shell 5. In a sixth embodiment, the accommodating portion 37 of the air inlet cover 36 can be accommodated in the first shell 4. Preferably, the sixth embodiment is adopted, and the air inlet cover 36 is provided with an air inlet grille for blocking foreign matters from entering the fan head 1.

[0066] As Figures 16-18As shown, the rotating device 2 comprises a mounting shell 38 fixedly connected with the fan head 1, a second motor 39 arranged in the mounting shell 38, and a limiting member 40 arranged at the output end of the second motor 39; the second motor 39 is fixed on the fan head 1, the limiting member 40 is movably connected with the mounting shell 38, and the output end of the second motor 39 is embedded on the limiting member 40 for fixation; when the second motor 39 drives the fan head 1 to rotate, the mounting shell 38 rotates relative to the limiting member 40.

[0067] In implementation, the rotating device 2 comprises the mounting shell 38, the second motor 39, and the limiting member 40. The mounting shell 38 is a hollow structure, in implementation, a stud is arranged on the outer circumferential surface of the fan head 1, the mounting shell 38 can be fixedly connected with the fan head 1 by screws, the second motor 39 is also fixedly connected with the fan head 1 by screws, the limiting member 40 is movably connected with the mounting shell 38, and a limiting structure is arranged on the limiting member 40 for cooperation with the output end of the second motor 39; in use, when the second motor 39 is driven, the output end of the second motor 39 is limited and locked by the limiting member 40, i.e. the second motor 39 rotates, since the second motor 39 is fixedly connected with the fan head 1, the fan head 1 is driven to rotate for air supply, thereby realizing the head-shaking of the fan head 1 and increasing the air supply range.

[0068] Preferably, the limiting member 40 is provided with a protruding convex part 41 on the circumferential edge, and the end surface of the mounting shell 38 in contact with the limiting member 40 is provided with a sliding groove 42 matched with the convex part 41; when the second motor 39 is driven, the convex part 41 rotates and is limited in the sliding groove 42.

[0069] In order to limit the rotating stroke range of the fan head 1, the convex part 41 is arranged on the limiting member 40, and the sliding groove 42 is arranged on the limiting member 40; when rotating, the sliding path of the convex part 41 in the sliding groove 42 is the rotating stroke of the fan head 1, thereby controlling the rotating range of the fan head 1.

[0070] Reference Figures 19-20 As shown, the deformed strip assembly 3 comprises one or more bendable deformed legs 43, the limiting member 40 is provided with a fitting part 44 for mounting the deformed leg 43, and the deformed leg 43 is mounted and fixed in the fitting part 44.

[0071] The supporting legs 43 can be made of materials with flexibility, such as aluminum and the like, and are deformed by the user according to different scenarios. In this embodiment, the supporting legs 43 are preferably in the form of three or other numbers, and are manually deformed to form support for the fan head 1 when placed on a desktop, or are manually deformed to be wound on an external object when connected to the external object. To facilitate the installation of the supporting legs 43, corresponding accommodating portions 37 are provided on the limiting member 40 according to the number of the supporting legs 43.

[0072] The above is not intended to limit the technical scope of the utility model in any way, and any modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the technical scope of the utility model.

Claims

1. A deformable, rotating, pressure mixed flow fan characterized by, It comprises: a fan head for driving air flow, a rotating device for driving the fan head to rotate, and a deformation strip assembly for fixedly connecting with the outside bending; wherein the rotating device is connected with the fan head; and the deformation strip assembly is connected with the rotating device; the fan head comprises a first shell, a second shell, a first motor, and a fan blade; the first shell is located at the air inlet end; the first shell comprises a first outer ring, a motor mounting seat, and one or more first pressure pieces; the first motor is arranged on the motor mounting seat; the fan blade is arranged on the output end of the first motor; the first pressure pieces are distributed on the inner wall of the first outer ring and extend to connect the outer peripheral edge of the motor mounting seat; the inner wall of the first outer ring, the first pressure pieces, and the motor mounting seat form a first speed-increasing air duct, and the first speed-increasing air duct increases the radial air passage area to be small through the first pressure pieces to form air flow pressure increasing speed; the second shell is arranged at the air outlet end of the first shell; the second shell comprises a second outer ring, a pressure seat, and one or more second pressure pieces; the second pressure pieces are distributed on the inner wall of the second outer ring and extend to connect the outer peripheral edge of the pressure seat; the inner wall of the second outer ring, the second pressure pieces, and the pressure seat form a second speed-increasing air duct, and the second speed-increasing air duct increases the radial air passage area to be small through the second pressure pieces to form air flow pressure increasing speed; wherein the first motor drives the fan blade to rotate to generate negative pressure at the air inlet end to guide the air flow to the first speed-increasing air duct; the air flow is guided to the second speed-increasing air duct through the first pressure pieces of the first outer ring; and the air flow is blown out through the second pressure pieces in the second speed-increasing air duct, so that the air flow increases in speed after passing through the first speed-increasing air duct and the second speed-increasing air duct, thereby increasing the air volume and the air supply distance.

2. The deformable rotating pressure mixed-flow fan according to claim 1, characterized in that: it comprises a third shell arranged at the air outlet end of the second shell; the third shell comprises a third outer ring, a guide seat, and one or more third pressure pieces; the third pressure pieces are distributed on the inner wall of the third outer ring and extend to connect the outer peripheral edge of the guide seat; the third outer ring, the third pressure pieces, and the guide seat form a third speed-increasing air duct, and the third speed-increasing air duct increases the radial air passage area to be small through the third pressure pieces to form air flow pressure increasing speed to guide the air flow to be blown out.

3. The deformable rotating pressure mixed-flow fan according to claim 2, characterized in that: a first transition surface is arranged on the outer peripheral surface of the motor mounting seat; a second transition surface is arranged on the outer peripheral surface of the pressure seat; and a third transition surface is arranged on the outer peripheral surface of the guide seat; the first transition surface, the second transition surface, and the third transition surface are sequentially arranged to form an arc surface or an inclined surface for uniform transition, so as to guide the air flow.

4. The deformable rotating pressure mixed-flow fan according to claim 1, characterized in that: The first pressurized blades are distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressurized blades of the first speed-increasing air duct guide the airflow forward or gather the airflow backward to the second speed-increasing air duct, and the second pressurized blades are distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressurized blades blow the airflow backward or forward, achieving the effect of pressurizing and gathering the airflow.

5. The deformable rotary pressure mixed-flow fan according to claim 1, wherein: The first motor comprises a stator and a rotor, the stator is fixed on the motor mounting seat, and the rotor is arranged on the fan blade, and the rotor is sleeved on the stator.

6. The deformable rotary pressure mixed-flow fan according to claim 5, wherein: The motor mounting seat is provided with a convex column extending in the axial direction and hollow in the inside; The fan blade comprises a hub portion and blades uniformly arranged on the outer peripheral surface of the hub portion, and the hub portion has a receiving portion arranged inwardly recessed; The stator comprises an iron core inserted into the convex column and a coil wound on the iron core; The rotor comprises a rotating shaft arranged in the receiving portion in the axial direction and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted into the convex column.

7. The deformable rotary pressure mixed-flow fan according to claim 2, wherein: The air guide seat is provided with a face cover on the side close to the air outlet end, and there is a mounting space between the face cover and the air guide seat, a digital display panel is arranged in the mounting space, and the digital display panel is used for displaying and / or controlling parameters; a battery is arranged in the mounting space, and the battery is used for providing power.

8. The deformable rotary pressure mixed-flow fan according to claim 7, wherein: An air inlet cover is arranged, the air inlet cover is provided with a hollow receiving portion from the air inlet end to the air outlet end, and at least a part of the receiving portion extends to the first shell, the second shell or the third shell; The air inlet cover is provided with an air inlet grille at the air inlet end, the air inlet grille comprises connecting strips uniformly distributed in the circumferential direction, the connecting strips extend radially to connect to the inner wall of the receiving portion, so as to form a gap for preventing foreign matters from entering.

9. The deformable rotary pressure mixed-flow fan according to claim 8, wherein: The rotating device comprises a mounting shell fixedly connected with the fan head, a second motor arranged in the mounting shell, and a limiting piece arranged at the output end of the second motor; the second motor is fixed on the fan head, the limiting piece is movably connected with the mounting shell, the output end of the second motor is embedded on the limiting piece to be fixed, and when the second motor drives the fan head to rotate, the mounting shell rotates relative to the limiting piece.

10. The deformable rotary pressure mixed-flow fan according to claim 9, wherein: The limiting part is provided with a protruding convex part on the circumferential edge, and the end surface of the mounting shell in contact with the limiting part is provided with a sliding groove matched with the convex part; when the second motor is driven, the convex part rotates in the sliding groove for limiting; The deformed strip assembly comprises one or more bendable deformed legs, and the limiting part is provided with an embedded part for mounting the legs, and the legs are mounted and fixed in the embedded part.

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