Multifunctional wind gathering and pressurizing fan

Abstract

The utility model discloses a multifunctional wind gathering booster fan, which comprises a fan body and a U-shaped support, the fan body comprises a tubular shell, a motor base is arranged at the position of the axis of the shell, the upper part of the circumferential wall surface of the motor base extends outwards in the radial direction to form wind guide blades, and the U-shaped support is arranged on the U-shaped support. The air guide blade comprises a parallel portion and a torsion air cutting portion, the parallel portion is parallel to the axis of the air outlet, the torsion air cutting portion deviates from the plane where the parallel portion is located, and the air outlet is covered with an air gathering cover. Air flow is blown out after being pressurized and accelerated, turbulent flow is removed and noise is reduced under the joint matching action of the fan blade group, the air guide blades, the pressurizing surface and the air gathering cover, the air speed and the air supply distance effect are greatly improved, the mute working effect is also achieved, meanwhile, the structure is simple, the production and manufacturing cost is greatly reduced, the functions are diversified, and the practicability is high. The fan can be used as a desktop fan and also can be used as a wall fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, concretely is a kind of multifunctional wind gathering pressure fan. BACKGROUND

[0002] When going out or outdoor activities in summer, the weather is relatively hot, and there may be no air conditioning, in order to facilitate cooling at any time, portable fan arises at the historic moment, because it is convenient to carry and can be used at any time and is popular.

[0003] But because its volume is smaller, and the electrical device equipped with it can only use small power, therefore, in the previous portable fan, wind power cannot be designed very large, and thus leading to its blowing cooling effect is poor, although there are some manufacturers to apply the structure of traditional pressure fan to this small portable fan for improving wind speed to increase cooling effect, for example, Chinese patent (grant announcement number:CN217029352U), but it does not take into account the problem of wind flow turbulence, leading to its working noise is very large, seriously affect the user experience, not conducive to the popularization and application of product, and the traditional pressure fan structure is complex, production cost is high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of multifunctional wind gathering pressure fan, wind flow realizes pressure boost, turbulence removal, noise reduction and then blows outwards under the joint action of driving fan blade group, guide vane, pressure surface and wind gathering cover, not only greatly improve the wind speed and air supply distance effect, also realize the effect of silent working, while structure is simple, greatly reduce the production cost, solve the problem proposed in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme: A multi -functional wind gathering pressure fan, fan body is rotatably connected with a U -shaped support through rotating mechanism left and right sides, the fan body includes a tubular body shell, the shell axis is provided with motor base, the motor base is installed with drive fan blade group, the shell front and rear ends are provided with air inlet and air outlet respectively, drive fan blade group guides the air flow in tubular body shell and blows out from air outlet, the motor base circumferential wall surface upper part wall surface extends radially outward and forms the wind -guiding blade, the wind -guiding blade is fixedly connected with the shell inner wall surface away from the motor base one end, the wind -guiding blade is located drive fan blade group towards air outlet side, the wind -guiding blade includes parallel part and twist cut wind part, the parallel part is provided near air outlet side, the parallel part is provided with the shell axis parallel, the twist cut wind part is provided near air inlet side, the twist cut wind part is provided with the plane of parallel part, and its extension surface is provided with the axial intersection of drive fan blade group, the air outlet is covered with wind collecting cover, the wind collecting cover inner diameter gradually reduces from the air inlet to the air outlet direction.

[0006] Preferably, the twist cut wind part is a curved surface, the extension surface of the curved surface intersects the axis of the drive fan blade group, the inner side of the curved surface is a wind receiving surface, the drive fan blade group includes a rotating seat and drive blades uniformly arranged on the outer peripheral wall surface of the rotating seat, the surface of the drive blades towards the air outlet side is a wind driving surface, the wind receiving surface and the wind driving surface are arranged on the curved surface, and an included angle between the wind receiving surface and the wind driving surface is less than 90°.

[0007] Preferably, the included angle between the wind receiving surface and the central axis of the drive fan blade group is between 30° and 60°.

[0008] Preferably, the motor base is provided with an electric appliance cavity towards the air outlet side, a battery compartment is arranged in the electric appliance cavity, a storage battery is arranged in the battery compartment, a display screen and a circuit board assembly are arranged in the electric appliance cavity, the storage battery and the display screen are electrically connected with the circuit board assembly, a light-transmitting cover is arranged outside the display screen, and the light-transmitting cover is arranged at the cavity opening of the electric appliance cavity.

[0009] Preferably, a touch switch and a USB interface are electrically connected on the circuit board assembly, the touch switch is arranged inside the light-transmitting cover and is touch-connected with the light-transmitting cover, and the USB interface is arranged in a through hole of the shell and extends outward from the through hole.

[0010] Preferably, the light-transmitting cover and the wind collecting cover are coaxially arranged, and the surface of the light-transmitting cover away from the display screen protrudes outward to form a curved surface.

[0011] Preferably, the motor base outer peripheral wall surface comprises a booster surface which is at least partly radially increased from the air inlet to the air outlet.

[0012] Preferably, the air inlet is provided with an air inlet cover which is a hollow cover.

[0013] Preferably, the rotating mechanism comprises shaft seats symmetrically arranged on left and right sides of the shell, shaft sleeves arranged on both sides of the U-shaped bracket clamping opening, and damping washers clamped between the shaft seats and the shaft sleeves, and the shaft seats and the shaft sleeves are fixedly connected by screws to realize damping rotation connection.

[0014] Preferably, the U-shaped bracket bottom surface is provided with a hanging hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model discloses, the wind flow realizes the pressure boost and speed-up, removes the turbulence, reduces the noise and blows outwardly after the effect of the common cooperation of the driving fan blade group, the guide vane, the booster surface and the wind gathering cover, not only greatly promotes the wind speed and the air supply distance effect, also realizes the effect of the mute work, and the structure is simple, greatly reduces the production manufacturing cost, and the function is various, can be used as the desktop fan also can be used as the wall fan. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 For the utility model structure explosion Figure 1 ;

[0018] Figure 2 For the utility model structure explosion Figure 2 ;

[0019] Figure 3 For the utility model structure schematic diagram;

[0020] Figure 4 For the utility model shell A-A section position schematic diagram;

[0021] Figure 5 For the utility model shell A-A section view.

[0022] In the drawing: 1 fan body;11 wind gathering cover;12 light transmission cover;13 circuit board assembly;131 display screen;132 touch switch;14 battery;15 shell;151 motor base;152 electric appliance cavity;153 battery compartment;154 guide vane;1541 parallel part;1542 twisted wind cutting part;1543 wind receiving surface;155 booster surface;16 driving fan blade group;161 driving surface;17 air inlet cover;2 rotating mechanism;21 shaft seat;22 damping washer;23 shaft sleeve;24 shaft sleeve encapsulation cover;3 U-shaped bracket;31 hanging hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-5 A multifunctional wind gathering and pressurizing fan, comprising a fan body 1, the fan body 1 is rotationally connected with a U-shaped support 3 through a rotating mechanism 2 on the left and right sides, the rotating mechanism 2 comprises shaft seats 21 symmetrically arranged on the left and right sides of the shell 15, shaft sleeves 23 arranged on the two sides of the clamping opening of the U-shaped support 3 and damping washers 22 clamped between the shaft seats 21 and the shaft sleeves 23, the shaft seats 21 and the shaft sleeves 23 are fixedly connected by screws to realize damping rotation, the outer side of the shaft sleeve 23 is covered with a shaft sleeve sealing cover 24, the fan body 1 comprises a tubular body shell 15, the tubular body shell 15 is provided with a motor base 151 at the axis, the motor base 151 is provided with a wind-driven fan blade group 16, the tubular body shell 15 is provided with an air inlet and an air outlet at the front and rear ends respectively, the air inlet is covered with an air inlet cover 17, the air inlet cover 17 is a hollow cover, the wind-driven fan blade group 16 guides the air flow at the air inlet to flow into the tubular body shell 15 and then blow out from the air outlet, the motor base 151 is provided with wind guide blades 154 extending radially outward from the upper part of the circumferential wall surface, the wind guide blades 154 are fixedly connected with the inner wall surface of the tubular body shell 15 at the end away from the motor base 15, the wind guide blades 154 are located on the side of the wind-driven fan blade group 16 facing the air outlet, the wind guide blades 154 comprise parallel parts 1541 and twisted wind cutting parts 1542, the parallel parts 1541 are arranged close to the side of the air outlet, the parallel parts 1541 are arranged in parallel with the axis of the air outlet, the twisted wind cutting parts 1542 are arranged close to the side of the air inlet, the twisted wind cutting parts 1542 are arranged away from the plane where the parallel parts 1541 are located, the extension surface of the twisted wind cutting parts 1542 is arranged to intersect the wind-driven fan blade group 16 in the axial direction, the air outlet is covered with a wind gathering cover 11, the inner diameter of the wind gathering cover 11 gradually decreases from the air inlet to the air outlet, the wind gathering cover 11 not only has the effect of wind gathering and pressurizing, but also can realize the effects of turbulence elimination and noise reduction by compressing the wind beam.

[0025] The twist air cutting part 1542 is preferably a curved surface, the extension surface of the curved surface intersects with the axis of the air fan blade group 16, the inner side surface of the curved surface is the air receiving surface 1543, the air fan blade group 16 includes a rotating seat and air fan blades uniformly arranged on the outer peripheral wall surface of the rotating seat, the side surface of the air fan blades towards the air outlet is the air blowing surface 161, the air receiving surface 1543 is arranged intersecting with the curved surface where the air blowing surface 161 is located, and the included angle between the air receiving surface 1543 and the air blowing surface 161 is less than 90°, the air receiving surface 1543 and the air blowing surface 161 form an acute angle, which can have the effect of air flow pressure boosting, wherein the included angle between the air receiving surface 1543 and the central axis of the air fan blade group 16 is between 30° and 60°, and the comprehensive parameter test is optimal.

[0026] The motor base 151 is provided with an electric appliance cavity 152 on the side towards the air outlet, the electric appliance cavity 152 is provided with a battery compartment 153, the battery compartment 153 is provided with a storage battery 14, the electric appliance cavity 152 is provided with a display screen 131 and a circuit board assembly 13, the storage battery 14 and the display screen 131 are electrically connected with the circuit board assembly 13, the outer side of the display screen 131 is covered with a light-transmitting cover 12, the light-transmitting cover 12 is covered on the cavity opening of the electric appliance cavity 152, the display screen 131 is used to display the real-time working parameters of the fan body 1, including the remaining capacity of the storage battery 14, the working gear of the air fan blade group 16, etc., and the display content of the display screen 131 is displayed to the user through the light-transmitting cover 12. The circuit board assembly 13 is provided with a touch switch 132 and a USB interface electrically connected thereon, the touch switch 132 is arranged on the inner side of the light-transmitting cover 12 and is touch-connected with the light-transmitting cover 12, and the USB interface is arranged in a pre-designed through hole of the shell 15 and protrudes outward from the through hole. The touch switch 132 is used to start, stop and adjust the working mode of the fan body 1, and when the USB interface is externally connected with an external power supply through a charging line, the storage battery can be charged to supplement the electric quantity.

[0027] The light-transmitting cover 12 is coaxially arranged with the air collecting cover 11, and the surface of the light-transmitting cover 12 away from the display screen 13 protrudes outward to form a curved surface. The arrangement of the curved surface structure can help to reduce the air pressure effect formed by the wind flow in the area occupied by the light-transmitting cover 12 at the air outlet, so as to reduce the occurrence of wind flow backflow as much as possible, and help to reduce the wind flow noise.

[0028] The outer peripheral wall surface of the motor base 151 includes a pressure boosting surface 155 which is at least partly radially increased from the air inlet to the air outlet. The structural characteristics of the pressure boosting surface 155 are beneficial to form a tapered air outlet at the air outlet, which can boost and accelerate the wind flow at the air outlet.

[0029] The U-shaped support 3 is provided with a hanging hole 31 on the bottom surface, and the fan body 1 is hung on the wall through the hanging hole 31, so that the fan body 1 can be used as a wall fan, and the use function is increased.

[0030] In conclusion, the fan flow is blown outwards after being pressurized, accelerated, and de-noised by the combined action of the driving fan blade group 16, the guide fan blade 154, the pressurizing surface 155, and the wind gathering cover 11, which not only greatly improves the wind speed and air supply distance effect, but also realizes the effect of silent operation, and has the advantages of simple structure, greatly reduced production cost, and various functions.

[0031] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A multifunctional wind-gathering booster fan, comprising a fan body (1), the left and right sides of the fan body (1) are rotatably connected with a U-shaped support (3) through a rotating mechanism (2), characterized in that: The fan body (1) comprises a tubular body shell (15), the shell (15) is provided with a motor base (151) at the axis, the motor base (151) is provided with a driving fan blade group (16), the shell (15) is provided with an air inlet and an air outlet at the front and rear ends respectively, the driving fan blade group (16) guides the air flow at the air inlet into the tubular body shell (15) and blows out from the air outlet, the circumferential wall surface of the motor base (151) is partially extended radially outward to form a guide vane (154), the guide vane (154) is fixedly connected with the inner wall surface of the shell (15) at the end away from the motor base (151), the guide vane (154) is located at the side of the driving fan blade group (16) facing the air outlet, the guide vane (154) comprises a parallel part (1541) and a twisted wind cutting part (1542), the parallel part (1541) is provided at the side close to the air outlet, the parallel part (1541) is provided in parallel with the axis of the air outlet, the twisted wind cutting part (1542) is provided at the side close to the air inlet, the twisted wind cutting part (1542) is provided away from the plane where the parallel part (1541) is located, the extension surface of the twisted wind cutting part (1542) is provided to intersect the axis of the driving fan blade group (16), the air outlet is covered with a wind collecting cover (11), the inner diameter of the wind collecting cover (11) gradually decreases from the air inlet to the air outlet.

2. The multi-functional wind trapping and pressurizing fan according to claim 1, characterized in that: The twisted wind cutting part (1542) is a curved surface, the extension surface of the curved surface intersects the axis of the driving fan blade group (16), the inner side surface of the curved surface is a wind receiving surface (1543), the driving fan blade group (16) comprises a rotating seat and driving blades uniformly arranged on the outer circumferential wall surface of the rotating seat, the surface of the driving blade at the side facing the air outlet is a driving surface (161), the wind receiving surface (1543) is provided to intersect the curved surface where the driving surface (161) is located, and the included angle between the wind receiving surface (1543) and the driving surface (161) is less than 90°.

3. A multi-functional wind trapping and plenum fan according to claim 2, wherein: The included angle between the wind receiving surface (1543) and the central axis of the driving fan blade group (16) is between 30° and 60°.

4. The multi-functional wind-harvesting ram air fan of claim 1, wherein: The motor base (151) is provided with an electric appliance cavity (152) at the side facing the air outlet, the electric appliance cavity (152) is provided with a battery compartment (153), the battery compartment (153) is provided with a storage battery (14), the electric appliance cavity (152) is provided with a display screen (131) and a circuit board assembly (13), the storage battery (14) and the display screen (131) are electrically connected with the circuit board assembly (13), the outer side of the display screen (131) is covered with a light-transmitting cover (12), and the light-transmitting cover (12) is covered at the cavity opening of the electric appliance cavity (152).

5. A multi-functional wind trapping and pressure increasing fan according to claim 4, characterized in that: The circuit board assembly (13) is provided with a touch switch (132) and a USB interface electrically connected thereto, the touch switch (132) is arranged at the inner side of the light-transmitting cover (12) and is touch-connected with the light-transmitting cover (12), and the USB interface is arranged in a through hole of the shell (15) and extends outward from the through hole.

6. A multi-functional wind trapping and plenum fan according to claim 4, wherein: The light-transmitting cover (12) is coaxially arranged with the wind-collecting cover (11), and the surface of the light-transmitting cover (12) away from the display screen (131) protrudes outward to form a curved surface.

7. The multi-functional wind-harvesting ram air fan of claim 1, wherein: The motor base (151) includes a pressure-increasing surface (155) on the outer peripheral wall surface, which is at least partially radially increased from the air inlet to the air outlet.

8. The multi-functional wind-harvesting ram air fan of claim 1, wherein: The air inlet is covered with an air inlet cover (17), which is a hollow cover.

9. The multi-functional wind-harvesting ram air fan of claim 1, wherein: The rotating mechanism (2) includes shaft seats (21) symmetrically arranged on the left and right sides of the shell (15), shaft sleeves (23) arranged on the two sides of the clamping opening of the U-shaped support (3), and damping washers (22) clamped between the shaft seats (21) and the shaft sleeves (23), the shaft seats (21) and the shaft sleeves (23) are fixedly connected by screws to achieve damping rotation connection.

10. The multi-functional wind-harvesting ram air fan of claim 1, wherein: The U-shaped support (3) is provided with a hanging hole (31) on the bottom surface.

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