Air-guiding and speed-increasing airflow mixing generator

Abstract

The utility model relates to the technical field of fans, and discloses an air-guiding and speed-increasing air flow mixing generator which comprises a front shell, a rear shell and a rear shell. The front shell comprises a first outer ring, a pressurizing sheet and a motor mounting seat; the pressurizing sheets are distributed between the motor mounting seat and the first outer ring; the first outer ring and the motor mounting seat form a pressurizing air outlet duct which radially shrinks from the air inlet direction to the air outlet direction; the motor is arranged on the motor mounting seat; the fan blades are arranged at the output end of the motor, each fan blade comprises a hub part and blades, and the peripheral surface of each hub part is radially enlarged from the air inlet direction to the air outlet direction to form an air guide surface and extends to the pressurizing air outlet duct; a pressurizing face expanding in the radial direction is arranged on the inner wall of the rear shell from the air inlet direction to the air outlet direction, and the air guiding face and the pressurizing face form an air inlet channel shrinking in the radial direction from the air inlet direction to the air outlet direction. When the motor drives the fan blades to rotate, negative pressure is generated, airflow sequentially passes through the air inlet duct and the pressurizing air outlet duct from the air inlet direction to the air outlet direction, and therefore the air volume and the air supply distance of the airflow are increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially in a kind of air guide speed airflow mixing generator. BACKGROUND

[0002] Fan on the market, main structure is rear air inlet cover, front air outlet cover, motor and fan blade, utilize the mode of motor driving fan blade to rotate to realize the air flow straight in and out air supply mode.

[0003] Due to the structure, with the defect of low air pressure, air supply distance is short.In slightly far distance, feel not to blow, cannot realize to user blowing cooling.

[0004] Therefore, it needs to be improved. INVENTION CONTENTS

[0005] The utility model solves the technical problem in the prior art, provide a kind of air guide speed airflow mixing generator, to solve the problem in the background art proposed.

[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows: an air guide speed airflow mixing generator, comprising: a front shell, the front shell is arranged in the air outlet direction;The front shell includes a first outer ring, one or more than one pressure sheet and a motor mounting seat;The pressure sheet is distributed on the outer peripheral edge of the motor mounting seat and extends to the inner wall of the first outer ring;The inner wall of the first outer ring and the outer wall of the motor mounting seat form a pressurized air outlet air duct, and the pressurized air outlet air duct is radially contracted from the air inlet direction to the air outlet direction;Motor, the motor is arranged in the motor mounting seat;Fan blade, the fan blade is arranged at the output end of the motor;Rear shell, the rear shell is arranged in the air inlet direction, and the rear shell is matched with the front shell;The inner wall of the rear shell is provided with a pressure-increasing surface that increases radially from the air inlet direction to the air outlet direction, and the inner wall of the rear shell and the fan blade form an air inlet air duct;Wherein, the motor drives the fan blade to rotate to generate negative pressure, and the air flow passes through the air inlet air duct that increases radially and the pressurized air outlet air duct that contracts radially from the air inlet direction to the air outlet direction in sequence to blow out, so as to increase the air volume and air supply distance of the air flow.

[0007] Further, the outer peripheral surface of the motor mounting seat increases radially from the air inlet direction to the air outlet direction to form a pressurized surface, and forms the pressurized air outlet air duct that is radially contracted from the air inlet direction to the air outlet direction with the inner wall of the first outer ring.

[0008] Further, the blade includes a blade top and a blade root, the blade top is located in the air inlet direction, the blade root is located in the air outlet direction, and the length of the blade top is greater than the length of the blade root, so that the air volume around the rear shell is pumped when the blade rotates.

[0009] Furthermore, the motor includes a stator and a rotor, the stator is fixed on the motor mounting seat, the rotor is arranged on the fan blades, and the rotor is sleeved on the stator.

[0010] Furthermore, the motor mounting seat is provided with a boss extending axially and hollow inside; the hub portion has a receiving portion recessed inwardly; the stator includes an iron core inserted on the boss and a coil wound on the iron core; the rotor includes a rotating shaft axially arranged in the receiving portion and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted in the boss.

[0011] Furthermore, it includes a driving circuit board, which is electrically connected to the motor to drive the motor to drive the fan blades to rotate.

[0012] Furthermore, it includes a power supply interface for providing power, and the power supply interface is electrically connected to the driving circuit board.

[0013] Furthermore, the rear shell is provided with an air inlet grille at the air inlet end, and the air inlet grille includes connecting strips evenly distributed around the circumference, and the connecting strips radially extend and connect to the inner wall of the rear shell to form a gap to prevent foreign matter from entering.

[0014] Furthermore, it includes a battery, which is electrically connected to the power supply interface to charge the battery and store electricity.

[0015] Furthermore, it includes a cover, which is arranged on a side of the motor mounting base close to the air outlet direction.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In terms of structural design, a supercharged outlet duct that contracts radially from the air inlet direction to the air outlet direction is designed at the front shell position. A radially increasing pressure surface is provided on the inner wall of the rear shell position from the air inlet direction to the air outlet direction, and the hub portion is radially increased from the air inlet direction to the air outlet direction to form an air guide surface. The air guide surface and the pressure surface form an air inlet duct that contracts radially from the air inlet direction to the air outlet direction. When the air flow enters from the air inlet duct, it pressurizes and accelerates the air flow. When the motor drives the rotation, it can pump more air in the directions around the rear shell. At the same time, the air inlet duct formed between the pressure surface and the fan blades can pressurize and accelerate the air flow. Furthermore, when the air flow is directed to the supercharged outlet duct, the radially contracted supercharged outlet duct further pressurizes and accelerates the air flow, thereby increasing the air volume and air supply distance.

[0018] 2、The length of the top of the fan blade is greater than the length of the root, when the motor drives the fan blade to rotate, more air volume can be pumped, and the air inlet air duct between the outer contour generated by the rotation of the fan blade and the inner wall of the rear shell is more narrow, air flow is pressurized and speeded up. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the utility model explosion.

[0021] Figure 3 It is a sectional structure schematic diagram of the utility model.

[0022] Figure 4 It is a structural schematic diagram of the front shell.

[0023] Figure 5 It is a structural schematic diagram of the front shell.

[0024] Figure 6 It is a structural schematic diagram of the front shell.

[0025] Figure 7 It is a structural schematic diagram of the rear shell.

[0026] Figure 8 It is a structural schematic diagram of the rear shell.

[0027] Figure 9 It is a structural schematic diagram of the fan blade.

[0028] Figure 10 It is a structural schematic diagram of the stator.

[0029] Figure 11 It is a structural schematic diagram of the rotor and the fan blade.

[0030] Reference signs: 1, front shell; 2, first outer ring; 3, pressurizing sheet; 4, motor mounting seat; 5, pressurized air outlet air duct; 6, motor; 7, fan blade; 8, hub part; 9, blade; 10, air guide surface; 11, rear shell; 12, pressurizing surface; 13, air inlet air duct; 14, pressurizing surface; 15, top of blade; 16, root of blade; 17, stator; 18, rotor; 19, convex column; 20, storage part; 21, iron core; 22, coil; 23, rotating shaft; 24, magnetic ring; 25, air inlet grille; 26, battery; 27, surface cover. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the drawings.

[0032] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" or "multiple" means two or more, unless otherwise specifically defined. In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a lower level than the second feature.

[0033] like Figure 1-9As shown, a wind-guiding and speed-increasing airflow mixing generator is provided, comprising: a front shell 1, which is arranged in the air outlet direction; the front shell 1 includes a first outer ring 2, one or more pressure plates 3 and a motor mounting seat 4; the pressure plates 3 are distributed on the outer peripheral edge of the motor mounting seat 4 and extend to the inner wall of the first outer ring 2; the inner wall of the first outer ring 2 and the outer wall of the motor mounting seat 4 constitute a pressurized air outlet duct 5, and the pressurized air outlet duct 5 radially contracts from the air inlet direction to the air outlet direction; a motor 6, which is arranged on the motor mounting seat 4; a fan blade 7, which is arranged at the output end of the motor 6, and the fan blade 7 includes a hub portion 8 and blades evenly arranged on the outer peripheral surface of the hub portion 8. 9. The outer peripheral surface of the hub portion 8 radially increases from the air inlet direction to the air outlet direction to form an air guide surface 10, and the air guide surface 10 extends to the pressurized air outlet duct 5; the rear shell 11, the rear shell 11 is arranged in the air inlet direction, and the rear shell 11 cooperates with the front shell 1; the inner wall of the rear shell 11 is provided with a radially expanding pressurized surface 12 from the air inlet direction to the air outlet direction, and the air guide surface 10 and the pressurized surface 12 form an air inlet duct 13 that radially contracts from the air inlet direction to the air outlet direction; wherein, when the motor 6 drives the fan blades 7 to rotate, negative pressure is generated, and the airflow passes through the air inlet duct 13 and the pressurized air outlet duct 5 in sequence from the air inlet direction to the air outlet direction to increase the air volume and air supply distance of the airflow.

[0034] In view of the technical problems described in the background art, in the above technical solution, the motor mount 4 and the front shell 1 can be integrally formed or independent components, and the motor mount 4 can be arranged in the air inlet direction or the air outlet direction of the front shell 1. As an implementable technical method, the motor mount 4 and the front shell 1 are integrally formed and the motor mount 4 is arranged on the side of the front shell 1 close to the air inlet direction. The pressure plates 3 can be evenly or unevenly distributed between the first outer ring 2 and the motor mount 4. Preferably, the pressure plates 3 are evenly distributed around the circumference. Since the pressure plates 3 are arranged between the motor mount 4 and the inner wall of the first outer ring 2, the radial ventilation area formed between the motor 6 mount 4 and the inner wall of the first outer ring 2 is reduced, so that the airflow passing between the motor mount 4 and the inner wall of the first outer ring 2 is pressurized and accelerated. The number of pressure plates 3 can be set according to the specific implementation situation, and there is no limit on the number of pressure plates 3. At the same time, a pressurized air outlet duct 5 is formed between the inner wall of the first outer ring 2 and the outer wall of the motor mounting base 4. The pressurized air outlet duct 5 radially contracts from the air inlet direction to the air outlet direction to form a shrinking structure. When the air flow passes through the pressurized air outlet duct 5, its radial ventilation area gradually becomes smaller, thereby pressurizing and increasing the speed of the air flow.

[0035] As for the rear shell 11, the rear shell 11 is used to cooperate with the front shell 1. In the design of the rear shell 11, the inner wall of the rear shell 11 is designed to be provided with a radially increasing pressure surface 12 from the air inlet direction to the air outlet direction. In the design of the fan blade 7, the fan blade 7 includes a hub portion 8 and a blade 9. The outer peripheral surface of the hub portion 8 radially increases from the air inlet direction to the air outlet direction to form an air guide surface 10. The air inlet duct 13 formed by the air guide surface 10 and the pressure surface 12 shows radial contraction from the air inlet direction to the air outlet direction, that is, the radial ventilation area of ​​the air inlet duct 13 on the side of the air inlet direction is greater than the radial ventilation area on the side of the air outlet direction, so that the airflow is pressurized and accelerated when entering the air inlet duct 13.

[0036] When in use, the front shell 1 is designed with a pressurized outlet duct 5 that contracts radially from the air inlet direction to the air outlet direction. The inner wall of the rear shell 11 is provided with a radially increasing pressure surface 12 from the air inlet direction to the air outlet direction, which is combined with the hub portion 8 to form a guide surface 10 that radially increases from the air inlet direction to the air outlet direction. The guide surface 10 and the pressurized surface 12 form an air inlet duct 13 that contracts radially from the air inlet direction to the air outlet direction. When the air flow enters from the air inlet duct 13, it pressurizes and accelerates the air flow. When the motor 6 is driven to rotate, it can pump more air in the directions around the rear shell 11. At the same time, the air inlet duct 13 formed between the pressurized surface 12 and the fan blades 7 can pressurize and accelerate the air flow. Furthermore, when the air flow is directed to the pressurized outlet duct 5, the radially contracted pressurized outlet duct 5 further pressurizes and accelerates the air flow, thereby increasing the air volume and air supply distance.

[0037] refer to Figure 3-5 As shown, the outer peripheral surface of the motor mounting seat 4 radially increases from the air inlet direction to the air outlet direction to form a boost surface 14, and forms the boost outlet duct 5 radially contracted from the air inlet direction to the air outlet direction with the inner wall of the first outer ring 2.

[0038] As a preferred embodiment, the outer peripheral surface of the motor mounting seat 4 radially increases from the air inlet direction to the air outlet direction to form a boost surface 14, and the boost surface 14 and the inner wall of the first outer ring 2 are wedge-shaped in cross section, that is, the radial ventilation area of ​​the boost outlet duct 5 on the side close to the air inlet direction is larger than the radial ventilation area of ​​the boost outlet duct 5 on the side close to the air outlet direction, so that when the air flow enters, the air flow can be pressurized and accelerated.

[0039] like Figure 9 As shown, the blade 9 includes a blade top 15 and a blade root 16. The blade top 15 is located in the wind inlet direction, and the blade root 16 is located in the wind outlet direction. The length of the blade top 15 is greater than the length of the blade root 16, so that when the blade 9 rotates, the air volume around the rear shell 11 is drawn.

[0040] Specifically, in the design of the fan blade 7, the length of the blade top 15 is greater than the length of the blade root 16, so that when the fan blade 7 rotates, it can generate a larger negative pressure, draw the airflow around the rear shell 11, and increase the air volume.

[0041] References Figure 2 、 Figure 10 and Figure 11 As shown, the motor 6 includes a stator 17 and a rotor 18. The stator 17 is fixed to the motor mounting base 4. The rotor 18 is arranged on the fan blade 7 and is sleeved on the stator 17. In practice, the motor 6 can be a brushed motor or a brushless motor.

[0042] The motor mounting seat 4 is provided with a boss 19 extending axially and having a hollow interior; the hub portion 8 has a receiving portion 20 recessed inwardly; the stator 17 includes an iron core 21 inserted on the boss 19 and a coil 22 wound on the iron core 21; the rotor 18 includes a rotating shaft 23 axially arranged in the receiving portion 20 and a magnetic ring 24 attached to the radial inner wall of the receiving portion 20, and the rotating shaft 23 is inserted in the boss 19.

[0043] Preferably, as an implementable technical solution, the motor 6 adopts an outer rotor brushless motor. Structurally, the hub portion 8 of the fan blade 7 is provided with a storage portion 20, and the fan blade 7 is used as the installation position of the rotor 18. The magnetic ring 24 and the rotating shaft 23 of the rotor 18 are arranged at the storage portion 20 position, thereby optimizing the structure and saving the number of components. At the same time, a hollow boss 19 is provided on the motor mounting seat 4 to facilitate the insertion of the rotating shaft 23 into the boss 19 for positioning. At the same time, the iron core 21 and the coil 22 of the stator 17 can be sleeved on the boss 19 for positioning. The fan blade 7 is driven by the designed outer rotor brushless motor structure, which can be more compact in structure, save the number of components, and thus reduce costs.

[0044] The present invention includes a driving circuit board, which is electrically connected to the motor 6 to drive the motor 6 to rotate the fan blades 7. The driving circuit board is not drawn in the figure.

[0045] In implementation, the driving circuit board can be built-in or external. When built-in, it can be installed on the front shell 1 or the rear shell 11. When external, it can be installed by setting up an additional shell. There is no limitation on this. The driving circuit board is mainly used to drive and control various components.

[0046] The present invention includes a power supply interface for providing power, which is electrically connected to the driver circuit board. The power supply interface can be used as a connecting wire, such as a plug and socket connection for power supply. The power supply interface is not shown in the figure.

[0047] The rear housing 11 is provided with an air inlet grille 25 at the air inlet end. The air inlet grille 25 includes connecting strips evenly distributed around the circumference. The connecting strips radially extend and connect to the inner wall of the rear housing 11 to form a gap to prevent foreign matter from entering.

[0048] The present invention includes a battery 26 , which is electrically connected to the power supply interface so as to charge the battery 26 and store electricity.

[0049] Furthermore, a cover 27 is included, which is arranged on one side of the motor mounting base 4 close to the air outlet direction. The cover 27 can be used as a decorative cover or for installing a cover with a display screen, which can be used to display information such as power, wind speed gear, etc.

[0050] The above does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A wind-guiding and speed-increasing airflow mixing generator, characterized in that: include: A front shell, the front shell being arranged in the air outlet direction; the front shell comprising a first outer ring, one or more pressure plates, and a motor mounting seat; the pressure plates being distributed around the outer peripheral edge of the motor mounting seat and extending to the inner wall of the first outer ring; the inner wall of the first outer ring and the outer wall of the motor mounting seat forming a pressurized air outlet duct, the pressurized air outlet duct radially contracting from the air inlet direction to the air outlet direction; a motor, wherein the motor is arranged on the motor mounting seat; a fan blade, the fan blade being arranged at the output end of the motor, the fan blade comprising a hub portion and blades uniformly arranged on the outer circumference of the hub portion, the outer circumference of the hub portion radially increasing from the air inlet direction to the air outlet direction to form an air guide surface, and the air guide surface extending to the supercharged air outlet duct; A rear shell, the rear shell being arranged in the air inlet direction and cooperating with the front shell; an inner wall of the rear shell is provided with a radially expanding pressure surface from the air inlet direction to the air outlet direction, and the air guide surface and the pressure surface form an air inlet duct that radially contracts from the air inlet direction to the air outlet direction; Among them, when the motor drives the fan blades to rotate, negative pressure is generated, and the air flow passes through the air inlet duct and the pressurized air outlet duct in sequence from the air inlet direction to the air outlet direction to increase the air volume and air supply distance of the air flow.

2. The air guide and speed increasing air flow mixing generator according to claim 1, characterized in that: The outer peripheral surface of the motor mounting seat radially increases from the air inlet direction to the air outlet direction to form a supercharging surface, and forms the supercharging air outlet duct radially contracted from the air inlet direction to the air outlet direction with the inner wall of the first outer ring.

3. The air guide and speed increasing air flow mixing generator according to claim 1, characterized in that: The blade includes a blade top and a blade root. The blade top is located in the wind inlet direction, and the blade root is located in the wind outlet direction. The length of the blade top is greater than the length of the blade root, so that when the blade rotates, the air volume around the rear shell is drawn.

4. The air guide and speed increasing air flow mixing generator according to claim 1, characterized in that: The motor includes a stator and a rotor, wherein the stator is fixed on the motor mounting seat, and the rotor is arranged on the fan blades, and the rotor is sleeved on the stator.

5. The air guide and speed increasing air flow mixing generator according to claim 4, characterized in that: The motor mounting seat is provided with a convex column extending in the axial direction and having a hollow interior; The hub portion has a receiving portion that is recessed inwardly; The stator includes an iron core inserted on the protruding column and a coil wound on the iron core; The rotor includes a rotating shaft axially arranged on the receiving portion and a magnetic ring attached to the radial inner wall of the receiving portion, and the rotating shaft is inserted into the protruding column.

6. The air guide and speed increasing air flow mixing generator according to any one of claims 1 to 5, characterized in that: It includes a driving circuit board, which is electrically connected to the motor to drive the motor to drive the fan blades to rotate.

7. The air guide and speed increasing air flow mixing generator according to claim 6, characterized in that: A power supply interface is included for providing power, and the power supply interface is electrically connected to the driving circuit board.

8. The airflow mixing generator with air guide and speed increase according to claim 6, characterized in that: The rear shell is provided with an air inlet grille at the air inlet end. The air inlet grille includes connecting strips evenly distributed around the circumference. The connecting strips extend radially and are connected to the inner wall of the rear shell to form a gap to prevent foreign matter from entering.

9. The air guide and speed increasing air flow mixing generator according to claim 7, characterized in that: A battery is included, and the battery is electrically connected to the power supply interface so as to charge the battery and store electricity.

10. The air guide and speed increasing air flow mixing generator according to claim 6, characterized in that: It comprises a surface cover, which is arranged on a side of the motor mounting base close to the air outlet direction.

Images