Pressurizing mixed flow handheld ice compress fan
Through the combination of the three-speed air duct design and refrigeration components, the problems of low air pressure and short air supply distance of the handheld fan are solved, achieving longer-distance air supply and better cooling effect.
Patent Information
- Application Number
- CN202422189932.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing handheld fans have problems such as low air pressure, short air supply distance and lack of cooling effect.
The three-speed air duct design is adopted to increase the air volume and air supply distance through the first, second and third pressurized plates, and cool down with the refrigeration component.
The pressure increase and cooling effect of the airflow is achieved, and the air supply distance and cooling effect are improved.
Smart Images
Figure CN223075783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fans, in particular to a pressurized mixed-flow handheld ice-cooling fan. Background Art
[0002] In summer, it is easy to feel hot when walking outdoors. Handheld fans are favored by many people because of their small size, delicate appearance, convenient carrying and easy use at close range.
[0003] Most of the existing handheld fans on the market adopt the axial-flow air outlet form, and the air flow is a direct-in and direct-out air outlet mode, which has the problems of low air pressure and short air supply distance. At the same time, there is a lack of refrigeration effect, and the cooling effect is poor when the weather is hot.
[0004] Therefore, improvements need to be made. Summary of the Utility Model
[0005] The technical problem solved by the utility model is to provide a pressurized mixed-flow handheld ice-cooling fan to solve the problems mentioned in the above background art in view of the defects existing in the above prior art.
[0006] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A pressurized mixed-flow hand-held ice fan, comprising: a fan head for driving the generation of air flow and a handle connected to the fan head, wherein a driving circuit board, a battery and a control button for control are installed in the handle; the battery, the control button and the driving circuit board are electrically connected; the control button is exposed on the outer peripheral surface of the handle; the fan head includes a first housing, a second housing, a third housing, a motor, a fan blade and a refrigeration component; the first housing, the first housing is located at the air inlet end; the first housing includes a first outer ring, a motor mounting seat and more than one first pressurizing piece; the motor is arranged on the motor mounting seat; the fan blade is arranged on the output end of the motor; the first pressurizing 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 pressurizing pieces and the motor mounting seat form a first speed increasing air duct, and the first speed increasing air duct increases through the first pressurizing pieces, resulting in a smaller radial ventilation area, thereby pressurizing and increasing the speed of the air flow; the second housing, the second housing is arranged at the air outlet end of the first housing; the second housing includes a second outer ring, a pressurizing seat and more than one second pressurizing piece; the second pressurizing pieces are distributed on the inner wall of the second outer ring and extend to connect the outer peripheral edge of the pressurizing seat; the inner wall of the second outer ring, the second pressurizing pieces and the pressurizing seat form a second speed increasing air duct, and the second speed increasing air duct increases through the second pressurizing pieces, resulting in a smaller radial ventilation area, thereby pressurizing and increasing the speed of the air flow; the third housing, the third housing is arranged at the air outlet end of the second housing; the third housing includes a third outer ring, a wind guiding seat and more than one third pressurizing piece; the third pressurizing pieces are distributed on the inner wall of the third outer ring and extend to connect the outer peripheral edge of the wind guiding seat; the third outer ring, the third pressurizing pieces and the wind guiding seat form a third speed increasing air duct, and the third speed increasing air duct increases through the third pressurizing pieces, resulting in a smaller radial ventilation area, thereby pressurizing and increasing the speed of the air flow to direct the air flow to blow out; the refrigeration component, the refrigeration component is installed on one side of the wind guiding seat close to the air outlet end, and the refrigeration component is used to drive refrigeration to reduce the temperature of the air flow at the air outlet end; wherein, the motor drives the fan blade to rotate to generate negative pressure at the air inlet end to direct the air flow to the first speed increasing air duct; the air flow is pressurized by the first pressurizing pieces on the first outer ring and directed to the second speed increasing air duct; the air flow is pressurized by the second pressurizing pieces in the second speed increasing air duct and blown to the third speed increasing air duct; the air flow is pressurized by the third pressurizing pieces in the third speed increasing air duct and blown out, and is cooled by the refrigeration component, 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, the second speed increasing air duct and the third speed increasing air duct.
[0007] Furthermore, the first pressure sheet is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure sheet of the first speed-increasing air duct guides the airflow forward or gathers the airflow in the reverse direction to the second speed-increasing air duct, and the second pressure sheet is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure sheet gathers the airflow in the reverse direction or blows it out in the forward direction, thereby achieving the effect of pressurizing and gathering the airflow.
[0008] 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.
[0009] Furthermore, the motor mounting seat is provided with a convex column which extends axially and is hollow inside; the fan blades include a hub portion and blades evenly arranged on the outer circumferential surface of the hub portion, and the hub portion has a receiving portion which is recessed inwardly; the stator includes an iron core inserted on the convex 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 in the convex column.
[0010] Further, it includes an air inlet hood, which is provided with a hollow accommodating portion along the air inlet end to the air outlet end, and at least a portion of the accommodating portion extends to the first shell or the second shell or the third shell; to form a package that wraps the first shell or the first shell, the second shell or the first shell, the second shell, the third shell, or to form a package contained in the first shell or the first shell, the second shell or the first shell, the second shell, the third shell.
[0011] Furthermore, the refrigeration component includes a semiconductor refrigeration sheet and a cooling cover, the air guide seat forms an installation space on one side close to the air outlet end, the semiconductor refrigeration sheet is arranged in the installation space, and the cooling cover is covered on the installation space and in contact with the semiconductor refrigeration sheet.
[0012] Furthermore, the blades of the fan blades are distributed counterclockwise from the air inlet end to the air outlet end.
[0013] Furthermore, it includes a power supply interface for providing electric power, the power supply interface is electrically connected to the driving circuit board, and the power supply interface is exposed outside the handle.
[0014] Furthermore, it comprises a decorative ring, which is embedded in the circumferential edge of the air outlet end of the third shell, and the decorative ring is provided with a radially enlarged air guide arc surface from the air inlet end to the air outlet end.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The pressurized mixed-flow hand-held fan adopts a three-speed air duct form. When the air flow passes through the first speed-up air duct, the first pressurizing piece arranged in the first speed-up air duct causes the radial ventilation area to become smaller, thereby realizing the pressurization of the air flow. At the same time, the first speed-up air duct is located at the air inlet end, whereby the surrounding air can be sucked in and the air volume can be increased. When the air flow passes through the second speed-up air duct, the second pressurizing piece arranged in the second speed-up air duct causes the radial ventilation area to become smaller, further performing the second-stage pressurization on the air flow. When the air flow passes through the third speed-up air duct, the third pressurizing piece arranged in the third speed-up air duct causes the radial ventilation area to become smaller, further performing the third-stage pressurization on the air flow, thereby realizing the increase of the air volume and the air supply distance of the air flow. By adding a refrigeration component to the air guide seat of the third speed-up air duct, since it is close to the air outlet end, when the refrigeration component refrigerates, the air flow passes through the refrigeration component to be cooled, improving the cooling effect.
[0017] 2. The first pressurizing pieces in the first speed-up air duct are arranged in a clockwise or counterclockwise distribution, and the second pressurizing pieces in the second speed-up air duct are arranged in a counterclockwise or clockwise distribution. Under the combined action of the two, the air flow can be led first and then gathered, or the air flow can be gathered first and then led, so as to adjust the direction of the air flow blown out. Brief Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the present utility model.
[0019] Figure 2 It is a schematic structural diagram of another angle of the present utility model.
[0020] Figure 3 It is an exploded structural diagram of the present utility model.
[0021] Figure 4 It is a sectional structural diagram of the fan head.
[0022] Figure 5 It is a schematic structural diagram of the first housing.
[0023] Figure 6 It is a schematic structural diagram of the first housing.
[0024] Figure 7 It is a schematic structural diagram of the second housing.
[0025] Figure 8 It is a schematic structural diagram of the second housing.
[0026] Figure 9 It is a schematic structural diagram of the third housing.
[0027] Figure 10 It is a schematic structural diagram of the third housing.
[0028] Figure 11It is a schematic structural diagram of the first housing, the second housing, and the third housing.
[0029] Figure 12 It is a schematic structural diagram of the fan blade.
[0030] Figure 13 It is a schematic structural diagram of the fan blade and the rotor.
[0031] Figure 14 It is a schematic structural diagram of the stator.
[0032] Figure 15 It is a schematic structural diagram of the air inlet cover.
[0033] Figure 16 It is a schematic structural diagram of the refrigeration component.
[0034] Figure 17 It is a schematic structural diagram of the decorative ring.
[0035] Reference numerals: 1, fan head; 2, handle; 3, drive circuit board; 4, battery; 5, control button; 6, first housing; 7, second housing; 8, third housing; 9, motor; 10, fan blade; 11, refrigeration component; 12, first outer ring; 13, motor mounting seat; 14, first pressure piece; 15, first speed-up air duct; 16, second outer ring; 17, pressurizing seat; 18, second pressure piece; 19, second speed-up air duct; 20, third outer ring; 21, air guide seat; 22, third pressure piece; 23, third speed-up air duct; 24, stator; 25, rotor; 26, convex column; 27, hub portion; 28, blade; 29, storage portion; 30, iron core; 31, coil; 32, rotating shaft; 33, magnetic ring; 34, air inlet cover; 35, semiconductor refrigeration sheet; 36, heat conduction cover; 37, power supply interface; 38, decorative ring; 39, air guide arc surface. Detailed implementation manners
[0036] The present utility model will be further described in detail below with reference to the accompanying drawings.
[0037] The embodiments described with reference to the accompanying drawings are exemplary and are intended 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", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a number of" and "a plurality of" is two or more, unless otherwise specifically defined. In the present application, unless otherwise clearly specified and limited, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.
[0038] As Figures 1-10As shown, a pressurized mixed-flow hand-held ice-cooling fan is provided, including: a fan head 1 for driving and generating air flow, and a handle 2 connected to the fan head 1. A driving circuit board 3 for control, a battery 4, and a control button 5 are installed in the handle 2; the battery 4 and the control button 5 are electrically connected to the driving circuit board 3; the control button 5 is exposed on the outer peripheral surface of the handle 2; the fan head 1 includes a first housing 6, a second housing 7, a third housing 8, a motor 9, a fan blade 10, and a refrigeration component 11; the first housing 6, the first housing 6 is located at the air inlet end; the first housing 6 includes a first outer ring 12, a motor mounting seat 13, and more than one first pressurizing piece 14; the motor 9 is arranged on the motor mounting seat 13; the fan blade 10 is arranged on the output end of the motor 9; the first pressurizing pieces 14 are distributed on the inner wall of the first outer ring 12 and extend to connect the outer peripheral edge of the motor mounting seat 13; the inner wall of the first outer ring 12, the first pressurizing pieces 14, and the motor mounting seat 13 form a first speed-up air duct 15, and the first speed-up air duct 15 increases through the first pressurizing pieces 14, resulting in a smaller radial ventilation area to form pressurization and speed-up of the air flow; the second housing 7, the second housing 7 is arranged at the air outlet end of the first housing 6; the second housing 7 includes a second outer ring 16, a pressurization seat 17, and more than one second pressurizing piece 18; the second pressurizing pieces 18 are distributed on the inner wall of the second outer ring 16 and extend to connect the outer peripheral edge of the pressurization seat 17; the inner wall of the second outer ring 16, the second pressurizing pieces 18, and the pressurization seat 17 form a second speed-up air duct 19, and the second speed-up air duct 19 increases through the second pressurizing pieces 18, resulting in a smaller radial ventilation area to form pressurization and speed-up of the air flow; the third housing 8, the third housing 8 is arranged at the air outlet end of the second housing 7; the third housing 8 includes a third outer ring 20, a wind guiding seat 21, and more than one third pressurizing piece 22; the third pressurizing pieces 22 are distributed on the inner wall of the third outer ring 20 and extend to connect the outer peripheral edge of the wind guiding seat 21; the third outer ring 20, the third pressurizing pieces 22, and the wind guiding seat 21 form a third speed-up air duct 23, and the third speed-up air duct 23 increases through the third pressurizing pieces 22, resulting in a smaller radial ventilation area to form pressurization and speed-up of the air flow so as to guide the air flow to blow out; the refrigeration component 11, the refrigeration component 11 is installed on one side of the wind guiding seat 21 close to the air outlet end, and the refrigeration component 11 is used to drive refrigeration to reduce the temperature of the air flow at the air outlet end; wherein, the motor 9 drives the fan blade 10 to rotate to generate negative pressure at the air inlet end to guide the air flow to the first speed-up air duct 15; the air flow is pressurized by the first pressurizing pieces 14 on the first outer ring 12 and guided to the second speed-up air duct 19; the air flow is pressurized by the second pressurizing pieces 18 in the second speed-up air duct 19 and blown to the third speed-up air duct 23;The air flow is pressurized and blown out by the third pressurizing piece 22 in the third air speed increasing duct 23, and is cooled by the refrigeration component 11, so that after the air flow passes through the first air speed increasing duct 15, the second air speed increasing duct 19, and the third air speed increasing duct 23, the air volume and the air supply distance are increased.
[0039] In view of the technical problems existing in the background art, a pressurized mixed-flow hand-held ice compressible fan is provided, which includes a fan head 1 and a handle 2. In practice, the fan head 1 and the handle 2 can be an integral component structure or an independent component structure. Preferably, the fan head 1 and the handle 2 are independent components, and the fan head 1 and the handle 2 are assembled and connected. Among them, the fan head 1 is mainly used to drive and generate an air flow. The handle 2 is for the user to hold, and a battery 4, a drive circuit board 3 and a control button 5 are usually installed in the handle 2; the battery 4 is used to provide power for endurance, and the drive circuit board 3 is used to set up a control circuit. Among them, one or more drive circuit boards 3 can be set up to control components, such as driving a motor 9, driving a refrigeration component 11, etc.; the control button 5 is used to turn on or off or adjust the air volume gear, and is used to control the opening or closing of the refrigeration component 11, etc.
[0040] Such as Figure 5 And Figure 6 For the first housing 6, it includes a first outer ring 12, a motor mounting seat 13 and a first pressurizing piece 14. The motor mounting seat 13 and the first outer ring 12 can be integrally formed or independent components. The motor mounting seat 13 can be arranged at the air inlet end position or the air outlet end position of the first outer ring 12. As an implementable technical method, the motor mounting seat 13 and the first outer ring 12 are integrally formed and the motor mounting seat 13 is arranged at the air outlet end of the first outer ring 12. The first pressurizing piece 14 can be evenly distributed or unevenly distributed between the first outer ring 12 and the motor mounting seat 13. Preferably, the first pressurizing piece 14 adopts a circumferentially uniform distribution form. Due to the existence of the first pressurizing piece 14, the radial ventilation area of the air flow passing through the first outer ring 12 becomes smaller, and the first housing 6 is located at the air inlet end. The air flow can suck and gather the surrounding air flow, increasing the air volume; at the same time, the air flow is pressurized to increase the air flow speed.
[0041] Such as Figure 7 And Figure 8, the second housing 7 includes a second outer ring 16, a pressurizing seat 17, and a second pressurizing piece 18. Among them, the second outer ring 16, the pressurizing seat 17, and the second pressurizing piece 18 can be integrally formed or in the form of independent components. Preferably, the second outer ring 16, the pressurizing seat 17, and the second pressurizing piece 18 are integrally formed. The second housing 7 can be in an integral form with the first housing 6 or in the form of independent components. The second pressurizing piece 18 can be evenly distributed or unevenly distributed between the second outer ring 16 and the pressurizing seat 17. Preferably, the second pressurizing piece 18 is evenly distributed in a circumferential manner. The presence of the second pressurizing piece 18 in the second air acceleration duct 19 causes the radial ventilation area of the air flow passing through the second outer ring 16 to become smaller, further pressurizing the air flow and increasing the air flow velocity.
[0042] Such as Figure 9 and Figure 10 , the third housing 8 includes a third outer ring 20, a wind guiding seat 21, and a third pressurizing piece 22. Among them, the third outer ring 20, the wind guiding seat 21, and the third pressurizing piece 22 can be integrally formed or in the form of independent components. Preferably, the third outer ring 20, the wind guiding seat 21, and the third pressurizing piece 22 are integrally formed. The third housing 8 can be integral with the second housing 7, or the third housing 8 can be integral with the second housing 7 and the first housing 6, or the third housing 8, the second housing 7, and the first housing 6 are in the form of independent components. The third pressurizing piece 22 can be evenly distributed or unevenly distributed between the third outer ring 20 and the wind guiding seat 21. Preferably, the third pressurizing piece 22 is evenly distributed in a circumferential manner. The presence of the third pressurizing piece 22 in the third air acceleration duct 23 causes the radial ventilation area of the air flow passing through the third outer ring 20 to become smaller, further pressurizing the air flow and increasing the air flow velocity.
[0043] Such as Figure 1 As shown, for the refrigeration component 11, its function is to refrigerate when driving. The refrigeration component 11 is arranged on one side of the wind guiding seat 21 close to the air outlet end. When the air flow is pressurized and accelerated through the first air acceleration duct 15, the second air acceleration duct 19, and the third air acceleration duct 23, under the action of the refrigeration component 11, the blown air flow is cooled, so that the temperature of the blown air flow is low and has a better cooling effect. Or the refrigeration component 11 is directly in contact with the user's skin, and the user is cooled by means of heat conduction, which enriches the usage mode and is more suitable for wide use.
[0044] Refer to Figure 11As shown, the first pressure plates 14 are distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure plates 14 of the first air acceleration duct 15 guide the air flow in the forward direction or gather the air flow in the reverse direction to the second air acceleration duct 19. The second pressure plates 18 are distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure plates 18 gather the air flow in the reverse direction or blow out the air flow in the forward direction, achieving the effect of pressurizing and gathering the air flow.
[0045] As a preferred technical solution, in an implementable manner, the first pressure plates 14 are arranged clockwise and the second pressure plates 18 are arranged counterclockwise. Since the air flow moves centrifugally in the circumferential direction of the fan blades 10 driven by the fan blades 10, the setting direction of the first pressure plates 14 of the first air acceleration duct 15 is opposite to the direction of the air flow movement. The first pressure plates 14 gather the air flowing in all directions and change the flow direction of the air flow. The air flow passing through the first air acceleration duct 15 is guided to the second air acceleration duct 19. The second pressure plates 18 of the second air acceleration duct 19 are arranged counterclockwise. Since the counterclockwise setting of the second pressure plates 18 is the same as the direction of the air flow movement, the second pressure plates 18 then export the gathered air flow, and thus the air passing through the second air acceleration duct 19 blows out in the front. This avoids the scattered blowing of the air flow, causing air volume loss, and achieves the effect of gathering air and increasing pressure.
[0046] In another implementable manner, the first pressure plates 14 are arranged counterclockwise and the second pressure plates 18 are arranged clockwise. Since the air flow moves centrifugally in the circumferential direction of the fan blades 10 driven by the fan blades 10, the setting direction of the first pressure plates 14 of the first air acceleration duct 15 is the same as the direction of the air flow movement. The first pressure plates 14 guide and pressurize the air flowing in all directions. Since the clockwise setting of the second pressure plates 18 is opposite to the direction of the air flow movement, the second pressure plates 18 can gather the air flow and change the flow direction of the air flow, so that when the air flow blows out, it can present a form of blowing out in the front, avoiding the scattered blowing of the air flow and causing air volume loss.
[0047] Reference Figure 3 As shown, the motor 9 includes a stator 24 and a rotor 25. The stator 24 is fixed on the motor mounting seat 13, the rotor 25 is arranged on the fan blades 10, and the rotor 25 is sleeved on the stator 24. In implementation, the motor 9 can adopt the form of a brushed motor or a brushless motor.
[0048] Reference Figure 5 、 Figures 12-14As shown, a convex column 26 extending axially and having a hollow interior is provided on the motor mounting base 13; the fan blade 10 includes a hub portion 27 and blades 28 uniformly arranged on the outer circumferential surface of the hub portion 27, and the hub portion 27 has a receiving portion 29 recessed inward; the stator 24 includes an iron core 30 inserted on the convex column 26 and a coil 31 wound around the iron core 30; the rotor 25 includes a rotating shaft 32 axially arranged in the receiving portion 29 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.
[0049] Preferably, as an implementable technical solution, the motor 9 is an outer-rotor brushless motor. Structurally, the hub portion 27 of the fan blade 10 is provided with a receiving portion 29, and the fan blade 10 is used as the installation position of the rotor 25. The magnetic ring 33 and the rotating shaft 32 of the rotor 25 are arranged at the position of the receiving portion 29, so as to optimize the structure and save the number of components. At the same time, a hollow convex column 26 is provided on the motor 9 mounting base, 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 brushless motor structure is used to drive the fan blade 10, and the structure can be made more compact, saving the number of components, thereby reducing costs.
[0050] Refer to Figure 4 and Figure 15 As shown, the present utility model includes an air inlet cover 34. The air inlet cover 34 is provided with a hollow accommodating portion along the air inlet end to the air outlet end, and at least a part of the accommodating portion extends to the first housing 6 or the second housing 7 or the third housing 8; so as to form a wrap around the first housing 6 or the first housing 6, the second housing 7 or the first housing 6, the second housing 7, the third housing 8, or so as to form an accommodation in the first housing 6 or the first housing 6, the second housing 7 or the first housing 6, the second housing 7, the third housing 8.
[0051] In a further technical solution, an air inlet hood 34 is added. The air inlet hood 34 has a hollow structure to form a receiving portion. The air inlet hood 34 can be arranged on one side of the first housing 6. In the first implementation, the air inlet hood 34 can receive the first housing 6, the second housing 7, and the third housing 8 through the receiving portion; in the second implementation, the air inlet hood 34 can receive the first housing 6 and the second housing 7 through the receiving portion; in the third implementation, the air inlet hood 34 can receive the first housing 6; in the fourth implementation, the receiving portion of the air inlet hood 34 can be received in the first housing 6, the second housing 7, and the third housing 8; in the fifth implementation, the receiving portion of the air inlet hood 34 can be received in the first housing 6 and the second housing 7; in the sixth implementation, the receiving portion of the air inlet hood 34 can be received in the first housing 6. Preferably, the sixth implementation manner of the present utility model is adopted, and an air inlet grille is arranged on the air inlet hood 34 to block foreign objects from entering the inside of the fan head 1.
[0052] Referring to Figure 16 As shown, the refrigeration assembly 11 includes a thermoelectric cooler 35 and a cold conduction cover 36. An installation space is formed on one side of the air guide seat 21 close to the air outlet end. The thermoelectric cooler 35 is arranged in the installation space, and the cold conduction cover 36 covers the installation space and contacts the thermoelectric cooler 35.
[0053] As an alternative implementation manner, the refrigeration assembly 11 can be composed of a thermoelectric cooler 35 and a cold conduction cover 36. For the convenience of installation, an installation space is arranged on the air guide seat 21. The installation space is formed by depression, and the refrigeration assembly 11 is arranged in the installation space. The cold surface of the refrigeration assembly 11 contacts the cold conduction cover 36 for heat transfer. Thus, when the air flow blows out from the third air acceleration duct 23, under the refrigeration and cooling of the refrigeration assembly 11, the temperature at the position of the air guide seat 21 is low. After the air flow blows out, it cools the air flow, which can improve the cooling effect on the user. At the same time, after the cold conduction cover 36 and the semiconductor transfer heat, when contacting the user's skin, it can bring a cool cooling experience to the customer, having the advantages of rich usage methods and good cooling effect.
[0054] Specifically, the blades 28 of the fan blade 10 are distributed counterclockwise from the air inlet end to the air outlet end.
[0055] Specifically, referring to Figure 2 , it includes a power supply interface 37 for providing power. The power supply interface 37 is electrically connected to the drive circuit board 3, and the power supply interface 37 is exposed outside the handle 2. The power supply interface 37 is used to connect a wire to supply power to the pressurized mixed-flow handheld ice compress fan or charge the battery 4.
[0056] Specifically, referring to Figure 3, including a decorative ring 38, which is fitted on the circumferential edge of the air outlet end of the third housing 8. The decorative ring 38 is provided with a wind guiding arc surface 39 that radially increases from the air inlet end to the air outlet end. The provided decorative ring 38 serves as a decoration on the one hand, and on the other hand, uses the designed wind guiding arc surface 39 to guide the airflow after the air outlet and control the airflow direction.
[0057] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims
1. A pressurized mixed-flow handheld ice compress fan, characterized in that, Comprising: A fan head for driving the generation of air flow and a handle connected to the fan head, wherein a driving circuit board, a battery and a control button for control are installed in the handle; the battery, the control button and the driving circuit board are electrically connected; the control button is exposed on the outer peripheral surface of the handle; The fan head includes a first housing, a second housing, a third housing, a motor, a fan blade and a refrigeration component; The first housing, which is located at the air inlet end; the first housing includes a first outer ring, a motor mounting seat and more than one first pressure piece; the motor is arranged on the motor mounting seat; the fan blade is arranged on the output end of the motor; the first pressure pieces are distributed on the inner wall of the first outer ring and extend to connect the outer periphery 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 through the first pressure pieces, resulting in a smaller radial ventilation area to form air flow pressurization and speed increase; The second housing, which is arranged at the air outlet end of the first housing; the second housing includes a second outer ring, a pressurization seat and more than one second pressure piece; the second pressure pieces are distributed on the inner wall of the second outer ring and extend to connect the outer periphery of the pressurization seat; the inner wall of the second outer ring, the second pressure pieces and the pressurization seat form a second speed increasing air duct, and the second speed increasing air duct increases through the second pressure pieces, resulting in a smaller radial ventilation area to form air flow pressurization and speed increase; The third housing, which is arranged at the air outlet end of the second housing; the third housing includes a third outer ring, a wind guiding seat and more than one third pressure piece; the third pressure pieces are distributed on the inner wall of the third outer ring and extend to connect the outer periphery of the wind guiding seat; the third outer ring, the third pressure pieces and the wind guiding seat form a third speed increasing air duct, and the third speed increasing air duct increases through the third pressure pieces, resulting in a smaller radial ventilation area to form air flow pressurization and speed increase so as to guide the air flow to be blown out; The refrigeration component, which is installed on one side of the wind guiding seat close to the air outlet end, and is used for driving refrigeration to reduce the temperature of the air flow at the air outlet end; Wherein, the 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 pressurized by the first pressure pieces on the first outer ring and guided to the second speed increasing air duct; the air flow is pressurized by the second pressure pieces in the second speed increasing air duct and blown to the third speed increasing air duct; the air flow is pressurized by the third pressure pieces in the third speed increasing air duct and blown out, and is cooled by the refrigeration component, 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, the second speed increasing air duct and the third speed increasing air duct.
2. The pressurized mixed-flow hand-held ice compress fan according to claim 1, wherein: The first pressure sheet is distributed clockwise or counterclockwise from the air inlet end to the air outlet end, so that the first pressure sheet of the first speed-increasing air duct guides the airflow forward or gathers the airflow in the reverse direction to the second speed-increasing air duct, and the second pressure sheet is distributed counterclockwise or clockwise from the air inlet end to the air outlet end, so that the second pressure sheet gathers the airflow in the reverse direction or blows it out in the forward direction, thereby achieving the effect of pressurizing and gathering the airflow.
3. The pressurized mixed flow handheld ice compress fan according to claim 1, characterized in that: The motor comprises a stator and a rotor, wherein 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.
4. The pressurized mixed flow handheld ice compress fan according to claim 3, characterized in that: The motor mounting seat is provided with a convex column extending in the axial direction and having a hollow interior; The fan blade comprises a hub portion and blades evenly arranged on the outer peripheral surface of the hub portion, and the hub portion has a receiving portion that is recessed inwardly; The stator comprises an iron core inserted on the protruding column and a coil wound on the iron core; The rotor comprises 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 in the convex column.
5. The pressurized mixed flow handheld ice compress fan according to claim 1, characterized in that: The air inlet cover comprises an air inlet cover, wherein 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 or the second shell or the third shell; To form a shell that wraps around the first shell or the first shell, the second shell or the first shell, the second shell, the third shell, or to form a shell that is contained in the first shell or the first shell, the second shell or the first shell, the second shell, the third shell.
6. The pressurized mixed flow handheld ice compress fan according to any one of claims 1 to 5, characterized in that: The refrigeration component includes a semiconductor refrigeration sheet and a cooling cover. A mounting space is formed on one side of the air guide seat close to the air outlet end. The semiconductor refrigeration sheet is arranged in the mounting space. The cooling cover is covered on the mounting space and in contact with the semiconductor refrigeration sheet.
7. The pressurized mixed flow handheld ice compress fan according to claim 6, characterized in that: The blades of the fan blade are distributed counterclockwise from the air inlet end to the air outlet end.
8. The pressurized mixed flow handheld ice compress fan according to claim 7, characterized in that: It includes a power supply interface for providing electric power, the power supply interface is electrically connected to the driving circuit board, and the power supply interface is exposed outside the handle.
9. The pressurized mixed flow handheld ice compress fan according to claim 8, characterized in that: It comprises a decorative ring, which is embedded in the circumferential edge of the air outlet end of the third shell, and the decorative ring is provided with a radially enlarged air guide arc surface from the air inlet end to the air outlet end.