Multi-functional air-collecting and pressurizing fan

Abstract

Not only significantly improve the effects caused by wind speed and blowing distance, but also achieve the effect of quiet operation, and provide a multi-functional air-collecting and pressurizing fan with a simple structure. 【Solution means】The multi-functional air-collecting and pressurizing fan includes a fan body and a U-shaped stand. The fan body includes a tubular housing 15. A motor base 151 is provided on the axis of the housing. A group of blowing blades 16 is attached to the motor base. The upper wall surface of the circumferential wall surface of the motor base extends radially outward to form a guiding blade 154. The guiding blade includes a parallel part and a twisted wind-cutting part. The parallel part is provided parallel to the axis of the exhaust port. The twisted wind-cutting part is provided offset from the plane where the parallel part is located. An air-collecting cover 11 is covered on the exhaust port. Through the combined cooperation of the group of blowing blades, the guiding blade, the pressurizing surface and the air-collecting cover, the air flow is pressurized, the speed is increased, the turbulent flow is removed, and after the noise is reduced, it is blown outwards.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and specifically, it is a multifunctional air-collecting and pressurizing fan.

Background Art

[0002] When going out or engaging in activities outdoors in summer, the temperature is relatively high, and there may be no air conditioner. In order to always enjoy a cool environment, portable fans have emerged. Portable fans are popular because they are easy to carry and can be used at any time.

[0003] However, due to its small size, the electrical components installed in it can only use relatively low power. Therefore, in conventional portable fans, the wind force cannot be designed to be large, and its air blowing effect and cool feeling are low. Although there are manufacturers that apply the structure of conventional booster fans to such small portable fans to increase the wind speed and improve the cool feeling (for example, Chinese Patent (Authorized Publication Number: CN217029352U)), the problem of turbulent flow in the wind flow is not considered. Therefore, the noise during the operation of conventional portable fans is very large, which has a profound impact on the user experience of consumers and is disadvantageous to the popularization and application of products. In addition, conventional booster fans have a complex structure and high manufacturing costs.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The purpose of the present invention is to provide a multifunctional air-collecting and pressurizing fan. By the combined cooperation of the air blowing blade group, the air guiding blade, the pressurizing surface and the air collecting cover, the air flow is pressurized, the speed is increased, the turbulent flow is removed, and the noise is reduced, and then blown outwards. This not only greatly improves the effects caused by the wind speed and the air blowing distance, but also achieves the effect of silent operation. In addition, the structure is simple and the manufacturing cost is greatly reduced, thereby solving the problems in the above background art.

Means for Solving the Problems

[0005] To achieve the above object, the present invention provides the following technical means. The multifunctional air collecting and pressurizing fan includes a fan body rotatably connected to a U-shaped stand via a rotating mechanism on both left and right sides. The fan body includes a tubular housing. A motor base is provided on the axis of the housing. A group of blower blades is attached to the motor base. An air inlet and an air outlet are respectively provided at both front and rear ends of the housing. The group of blower blades guides the air at the air inlet so that it blows out from the air outlet after flowing into the tubular housing. The upper wall surface of the circumferential wall surface of the motor base extends radially outward to form a guiding blade. The end of the guiding blade away from the motor base is fixedly connected to the inner wall surface of the housing. The guiding blade is located on the side facing the air outlet of the group of blower blades. The guiding blade includes a parallel part and a twisted air cutting part. The parallel part is provided close to the air outlet and is provided parallel to the axis of the air outlet. The twisted air cutting part is provided close to the air inlet and is provided offset from the plane where the parallel part is located, and its extending surface intersects with the axial direction of the group of blower blades. The air outlet is covered with an air collecting cover, and the inner diameter of the air collecting cover gradually decreases from the air inlet to the air outlet.

[0006] Preferably, the twisted air cutting part is a curved surface. The extending surface of the curved surface intersects with the axis of the group of blower blades. The inner surface of the curved surface is an air receiving surface. The group of blower blades includes a rotating base and blower blades uniformly arranged on the outer circumferential wall surface of the rotating base. The surface of the blower blade on the side facing the air outlet is a blowing surface. The curved surface where the air receiving surface is located intersects with the curved surface where the blowing surface is located, and the air receiving surface and the blowing surface form an angle of less than 90°.

[0007] Preferably, the angle between the air receiving surface and the central axis of the group of blower blades is 30° - 60°.

[0008] Preferably, an electric appliance cavity is provided on the side facing the exhaust port of the motor base, a battery storage part is provided in the electric appliance cavity, a storage battery is provided in the battery storage part, a display and a circuit board assembly are provided in the electric appliance cavity, both the storage battery and the display are electrically connected to the circuit board assembly, a light-transmitting cover is covered outside the display, and the light-transmitting cover is covered on the opening of the electric appliance cavity.

[0009] Preferably, a touch switch and a USB interface are electrically connected and provided on the circuit board assembly. The touch switch is provided inside the light-transmitting cover and is touch-sensing connected to the light-transmitting cover. The USB interface is provided in a through hole provided in advance in the housing and extends out from the through hole.

[0010] Preferably, the light-transmitting cover is provided coaxially with the air collecting cover, and the surface of the light-transmitting cover on the side away from the display protrudes outward to form a curved surface.

[0011] Preferably, the outer peripheral wall surface of the motor base includes a pressurizing surface that at least partially increases radially from the air intake port to the exhaust port.

[0012] Preferably, an air intake cover is covered on the air intake port, and the air intake cover is a perforated cover.

[0013] Preferably, the rotation mechanism includes shaft seats symmetrically provided on both the left and right sides of the housing, shaft sleeves provided on both sides of the end of the U-shaped stand, and damping gaskets interposed between the shaft seats and the shaft sleeves. The shaft seats and the shaft sleeves are fixed with screws to achieve damping of the rotational connection.

[0014] Preferably, a hanging hole is provided on the bottom surface of the U-shaped stand.

Advantages of the Invention

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0016] Through the combined action of the blower blade group, the air guide blade, the pressurizing surface and the air collecting cover, the present invention pressurizes the air flow, increases the speed, removes the turbulent flow, reduces the noise, and then blows it outwards, which not only greatly improves the effects of wind speed and blowing distance, but also achieves the effect of silent operation. In addition, the structure is simple, the manufacturing cost is greatly reduced, the functions are diverse, and it can be used not only as a desktop fan but also as a wall-mounted fan.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying out the Invention

[0018] Hereinafter, with reference to the drawings in the embodiments of the present invention, the technical means in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present invention.

[0019] As shown in FIGS. 1 to 5, the multifunctional air collecting and pressurizing fan includes a fan body 1 to which a U-shaped stand 3 is rotatably connected via a rotating mechanism 2 on both left and right sides. The rotating mechanism 2 includes shaft seats 21 symmetrically provided on both left and right sides of a housing 15, shaft sleeves 23 provided on both sides of the ends of the U-shaped stand 3, and damping gaskets 22 interposed between the shaft seats 21 and the shaft sleeves 23. The shaft seats 21 and the shaft sleeves 23 are fixed with screws to achieve damping of rotational connection. An outer cover 24 of the shaft sleeve is covered on the outside of the shaft sleeve 23. The fan body 1 includes a tubular housing 15. A motor base 151 is provided on the axis of the housing 15. A blower blade group 16 is attached to the motor base 151. An air inlet and an air outlet are respectively provided at both front and rear ends of the housing 15. An air inlet cover 17 is covered on the air inlet. The air inlet cover 17 is a perforated cover. The blower blade group 16 guides the air at the air inlet so that it blows outwards from the air outlet after flowing into the tubular housing 15. The upper wall surface of the circumferential wall surface of the motor base 151 extends radially outwards to form a guide vane 154. The end of the guide vane 154 away from the motor base 15 is fixedly connected to the inner wall surface of the housing 15. The guide vane 154 is located on the side facing the air outlet of the blower blade group 16. The guide vane 154 includes a parallel part 1541 and a twisted wind cut part 1542. The parallel part 1541 is provided close to the air outlet. The parallel part 1541 is provided parallel to the axis of the air outlet. The twisted wind cut part 1542 is provided close to the air inlet. The twisted wind cut part 1542 is provided offset from the plane where the parallel part 1541 is located, and its extending surface is provided intersecting the axial direction of the blower blade group 16. An air collecting cover 11 is covered on the air outlet. The inner diameter of the air collecting cover 11 gradually decreases from the air inlet to the air outlet. By providing the air collecting cover 11, the air collecting and pressurizing effect can be achieved, and the effect of removing turbulent flow and reducing noise can be realized by compressing the air flow.

[0020] The torsional air shear part 1542 is preferably a curved surface. The extending surface of the curved surface intersects the axis of the blower blade group 16. The inner surface of the curved surface is the air receiving surface 1543. The blower blade group 16 includes a rotating base and blower blades uniformly arranged on the outer peripheral wall surface of the rotating base. The surface on the side facing the exhaust port of the blower blade is the blowing surface 161. The curved surface where the air receiving surface 1543 is located is provided intersecting the curved surface where the blowing surface 161 is located. The air receiving surface 1543 and the blowing surface 161 form an angle less than 90°. By forming an acute angle between the air receiving surface 1543 and the blowing surface 161, the pressurizing effect of the air flow can be achieved. When the angle between the air receiving surface 1543 and the central axis of the blower blade group 16 is between 30° and 60°, the measurement of the comprehensive parameters is optimal.

[0021] An electrical appliance cavity 152 is provided on the side facing the exhaust port of the motor base 151. A battery storage part 153 is provided in the electrical appliance cavity 152. A storage battery 14 is provided in the battery storage part 153. A display 131 and a circuit board assembly 13 are provided in the electrical appliance cavity 152. Both the storage battery 14 and the display 131 are electrically connected to the circuit board assembly 13. A light-transmitting cover 12 is covered outside the display 131. The light-transmitting cover 12 is covered on the opening of the electrical appliance cavity 152. The display 131 displays the real-time operation parameters of the fan body 1, including the remaining capacity of the storage battery 14, the operation stage of the blower blade group 16, etc. The display content of the display 131 is displayed to the user through the light-transmitting cover 12. A touch switch 132 and a USB interface are electrically connected and provided on the circuit board assembly 13. The touch switch 132 is provided inside the light-transmitting cover 12 and is connected to the light-transmitting cover 12 in a touch-sensing manner. The USB interface is provided in a pre-provided through hole of the housing 15, extends out from the through hole. The touch switch 132 turns the fan body 1 on and off and adjusts the operation mode. When the USB interface is externally connected to an external power supply through a charging cable, the storage battery can be charged to replenish power.

[0022] The above light-transmitting cover 12 is provided coaxially with the air-collecting cover 11. The surface of the light-transmitting cover 12 on the side away from the display 13 forms a protruding curved surface. The provided curved surface structure is advantageous for reducing the influence of air pressure caused by the air flow within the area occupied by the light-transmitting cover 12 of the exhaust port. Thereby, the reverse flow phenomenon of the air flow can be reduced as much as possible, which is advantageous for reducing the noise of the air flow.

[0023] The outer peripheral wall surface of the above motor base 151 includes a pressurizing surface 155 that at least partially increases radially from the intake port to the exhaust port. The structural feature of this pressurizing surface 155 is advantageous for forming a tapered exhaust port, thereby enabling the air flow to be pressurized and accelerated at the exhaust port.

[0024] A hanging hole 31 is provided on the bottom surface of the above U-shaped stand 3. By hanging the fan body 1 on the wall hook through the hanging hole 31, it can be used as a wall-mounted fan, thereby increasing the usage functions.

[0025] As described above, the present invention pressurizes the air flow, increases the speed, removes the turbulent flow, and reduces the noise through the combined cooperative action of the blower blade group 16, the air guide blade 154, the pressurizing surface 155, and the air-collecting cover 11, and then blows it outwards. This not only greatly improves the effects due to the air speed and the blowing distance, but also achieves the effect of quiet operation. In addition, the structure is simple, the manufacturing cost is greatly reduced, the functions are diverse, and it can be used not only as a desktop fan but also as a wall-mounted fan.

[0026] Note that in this specification, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such an actual relationship or order between these entities or operations. The terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so a process, method, article or apparatus that includes a series of elements includes not only those elements but also other elements not expressly listed or elements inherent to such a process, method, article or apparatus.

[0027] As described above, the embodiments of the present invention have been shown and described. Those skilled in the art can make various changes, modifications, substitutions and variations to these embodiments without departing from the principle and spirit of the present invention. It can be understood that the scope of the present invention is limited by the appended claims for utility model registration and their equivalents.

Explanation of Reference Numerals

[0028] 1 Fan body 11 Air collecting cover 12 Translucent cover 13 Circuit board assembly 131 Display 132 Touch switch 14 Battery 15 Housing 151 Motor base 152 Electric appliance cavity 153 Battery storage part 154 Air guide vane 1541 Parallel part 1542 Twisted air cutting part 1543 Air receiving surface 155 Pressurizing surface 16 Air blowing vane group 161 Air blowing surface 17 Intake cover 2 Rotating mechanism 21 Axle seat 22 Damping gasket 23 Axle sleeve 24-axis sleeve exterior cover 3 U-shaped stand 31 Hanging hole

Claims

1. A multi-functional air-collecting and pressurizing fan including a fan body (1) with a U-shaped stand (3) rotatably connected to both left and right sides via a rotating mechanism (2), wherein the fan body (1) includes a tubular housing (15), a motor base (151) is provided on the axis of the housing (15), a blower blade group (16) is attached to the motor base (151), an air inlet and an air outlet are respectively provided at both front and rear ends of the housing (15), the blower blade group (16) guides the air at the air inlet so that it flows into the tubular housing (15) and then blows out from the air outlet, the upper wall surface of the circumferential wall surface of the motor base (151) extends radially outward to form a guiding blade (154), the end of the guiding blade (154) away from the motor base (15) is fixedly connected to the inner wall surface of the housing (15), the guiding blade (154) is located on the side facing the air outlet of the blower blade group (16), the guiding blade (154) includes a parallel part (1541) and a twisted air-cutting part (1542), the parallel part (1541) is provided close to the air outlet, the parallel part (1541) is provided parallel to the axis of the air outlet, the twisted air-cutting part (1542) is provided close to the air inlet, the twisted air-cutting part (1542) is provided offset from the plane where the parallel part (1541) is located, and its extending surface intersects the axial direction of the blower blade group (16), an air-collecting cover (11) is covered on the air outlet, and the inner diameter of the air-collecting cover (11) gradually decreases from the air inlet to the air outlet. A multi-functional air-collecting and pressurizing fan characterized by this.

2. The twisted air-cutting part (1542) is a curved surface, the extending surface of the curved surface intersects the axis of the blower blade group (16), the inner surface of the curved surface is a wind-receiving surface (1543), the blower blade group (16) includes a rotating base and blower blades uniformly arranged on the outer peripheral wall surface of the rotating base, the surface of the blower blade on the side facing the air outlet is a blowing surface (161), the curved surface where the wind-receiving surface (1543) is located intersects the curved surface where the blowing surface (161) is located, and the wind-receiving surface (1543) and the blowing surface (161) form an angle less than 90°. The multi-functional air-collecting and pressurizing fan according to Claim 1, characterized by this.

3. The angle between the wind receiving surface (1543) and the central axis of the blower blades (16) is 30° to 60°, and the multifunctional air collecting and pressurizing blower according to claim 2 is characterized in that.

4. An electrical appliance cavity (152) is provided on the side facing the exhaust port of the motor base (151), a battery storage part (153) is provided in the electrical appliance cavity (152), a storage battery (14) is provided in the battery storage part (153), a display (131) and a circuit board assembly (13) are provided in the electrical appliance cavity (152), the storage battery (14) and the display (131) are both electrically connected to the circuit board assembly (13), a light-transmitting cover (12) is covered outside the display (131), and the light-transmitting cover (12) is covered on the opening of the electrical appliance cavity (152), and the multifunctional air collecting and pressurizing blower according to claim 1 is characterized in that.

5. A touch switch (132) and a USB interface are electrically connected and provided on the circuit board assembly (13), the touch switch (132) is provided inside the light-transmitting cover (12) and is connected to the light-transmitting cover (12) so as to be able to sense a touch, and the USB interface is provided in a through hole provided in advance in the housing (15) and extends out from the through hole, and the multifunctional air collecting and pressurizing blower according to claim 4 is characterized in that.

6. The light-transmitting cover (12) is provided coaxially with the air collecting cover (11), and the surface of the light-transmitting cover (12) on the side away from the display (13) protrudes outward to form a curved surface, and the multifunctional air collecting and pressurizing blower according to claim 4 is characterized in that.

7. The outer peripheral wall surface of the motor base (151) includes a pressurizing surface (155) that at least partially increases radially from the intake port to the exhaust port, and the multifunctional air collecting and pressurizing blower according to claim 1 is characterized in that.

8. An intake cover (17) is covered on the intake port, and the intake cover (17) is a perforated cover, and the multifunctional air collecting and pressurizing blower according to claim 1 is characterized in that.

9. The rotating mechanism (2) includes shaft seats (21) symmetrically provided on both the left and right sides of the housing (15), shaft sleeves (23) provided on both sides of the ends of the U-shaped stand (3), and damping gaskets (22) interposed between the shaft seats (21) and the shaft sleeves (23). The shaft seats (21) and the shaft sleeves (23) are fixed with screws to achieve damping of rotational connection. The multifunctional air collecting and pressurizing fan according to claim 1 is characterized by this.

10. The multifunctional air collecting and pressurizing fan according to claim 1 is characterized in that a hanging hole (31) is provided on the bottom surface of the U-shaped stand (3).

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