Fan assembly, fan head and portable fan

Abstract

The utility model provides a fan assembly, fan head and portable fan, fan assembly is provided inside fan casing, including first wind guide portion, second wind guide portion and fan wheel, first wind guide portion is provided at the air outlet of fan casing, fan wheel is provided at the one end of first wind guide portion far away from the air outlet, second wind guide portion is provided with second wind guide portion far away from the air outlet. The second air guide part is arranged between the first air guide part and the fan wheel, the air outlet direction of the fan wheel at least partially coincides with the air inlet direction of the second air guide part, and an included angle is formed between the air outlet direction of the second air guide part and the air inlet direction of the first air guide part; according to the fan assembly, wind blown out by the fan wheel can be guided through the second wind guide part, energy loss caused by the fact that wind flow directly blows the first wind guide part is reduced, the wind efficiency is improved, meanwhile, wind power is increased, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to portable fan technical field, concretely relates to a fan assembly, fan head and portable fan. BACKGROUND

[0002] With the continuous improvement of material life conditions, people are more and more inclined to go outdoors or travel, whether it is a hot summer or a cold winter, there is a demand for portable fans in many outdoor scenes, or for cooling, or for heating, portable fans are more and more favored and selected by people because of their small size, easy to carry and effective temperature regulation.

[0003] At present, most of the portable fans on the market are simply wrapped in the middle of the frame by a fan outer frame, and the fan wheel is driven to rotate to achieve the effect of air supply, the wind direction of the fan of this structure is relatively chaotic, and the wind of different directions is easy to interfere with each other in the process of movement, forming resistance and reducing wind efficiency, at the same time, after the wind is blown out of the fan blade, due to the different wind directions, the movement area is large, which is easy to make the wind collapse in a short distance, causing the blowing to be not concentrated, the wind power to be insufficient and the user experience to be poor. Therefore, how to provide a portable fan capable of improving wind efficiency, blowing concentration and improving user experience is a problem to be solved by those skilled in the art. SUMMARY

[0004] Therefore, the utility model provides a fan assembly, fan head and portable fan, through setting second air guide part in the middle of first air guide part and fan wheel, make the fan wheel's air outlet direction and second air guide part's air inlet direction at least partially coincide, at the same time, make the air outlet direction of second air guide part and the air inlet direction of first air guide part form an angle, can realize the wind direction guidance of the wind blown out by fan wheel through second air guide part, improve the efficiency of wind, improve user experience.

[0005] In the first aspect, the utility model provides a fan assembly, which is arranged in the fan shell, the fan assembly comprises first air guide part, second air guide part and fan wheel, the first air guide part is arranged at the air outlet of the fan shell, the fan wheel is arranged at one end of the first air guide part away from the air outlet, the second air guide part is arranged in the middle of the first air guide part and the fan wheel, the air outlet direction of the fan wheel and the air inlet direction of the second air guide part at least partially coincide, the air outlet direction of the second air guide part and the air inlet direction of the first air guide part are arranged at an angle, the fan assembly can guide the wind blown out by the fan wheel through the second air guide part, and reduce the energy loss of the wind flow directly blowing the first air guide part.

[0006] Further, the second air guide part comprises an air guide ring and air guide vanes arranged along the circumference of the air guide ring, and the air guide vanes are arranged at an angle to the air inlet direction of the first air guide part along the extension direction of the air outlet.

[0007] Further, the air guide vanes are curved along the radial direction of the air guide ring.

[0008] Further, the second air guide part is a static air guide part.

[0009] Further, the first air guide part is a grille, and the grille is arranged at intervals on the inner circumferential side of the air outlet of the fan housing and extends along the inner direction of the fan housing.

[0010] Further, the fan assembly further comprises an air guide cover, and the first air guide part, the second air guide part and the fan wheel are arranged in the air guide cover, and the air guide cover is arranged on the fan housing.

[0011] Further, one end of the air guide cover near the air outlet is provided with a threading hole.

[0012] In a second aspect, the utility model provides a fan head, comprising a fan housing, a driving assembly, further comprising the fan assembly as described in the first aspect, and the driving assembly is embedded in the hub of the fan wheel to drive the rotation of the fan wheel.

[0013] In a third aspect, the utility model provides a portable fan, comprising the fan assembly as described in the first aspect or the fan head as described in the second aspect.

[0014] Further, the portable fan is a handheld portable fan provided with a handheld part.

[0015] Compared with the prior art, the fan assembly, the fan head and the portable fan have the following beneficial effects: by arranging the second air guide part between the first air guide part and the fan wheel, the air outlet direction of the fan wheel and the air inlet direction of the second air guide part at least partially coincide, and the air outlet direction of the second air guide part and the air inlet direction of the first air guide part form an angle, so that the air blown by the fan wheel can be effectively guided by the second air guide part, direct air flow is avoided to blow on the first air guide part to form reverse resistance air, energy loss is reduced, the efficiency of the air is improved, at the same time, the air power is increased, and the use experience of the user is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of a portable fan according to an embodiment of the utility model;

[0017] Figure 2 is Figure 1 a structural schematic view of the portable fan from another angle;

[0018] Figure 3 is Figure 1 an exploded view of the portable fan;

[0019] Figure 4 is Figure 1 another perspective of the portable fan;

[0020] Figure 5 is Figure 1 a partial structural schematic view of the fan assembly of the portable fan. DETAILED DESCRIPTION

[0021] In order to better understand the purpose, structure, features and effects of the utility model, the portable fan, the fan head and the fan assembly of the utility model will be further described in combination with the drawings and specific embodiments.

[0022] As Figures 1 to 5 shown, the portable fan of an embodiment of the utility model comprises a fan head 1 and a handheld part 2, wherein the fan head 1 comprises a fan shell 11, a driving assembly 12 and a fan assembly 13, the driving assembly 12 is embedded in the fan assembly 13, and the fan head 1 and the handheld part 2 are detachably connected. Specifically, the outer side of one end of the fan head 1 close to the handheld part 2 is provided with a groove along the circumference thereof, the inner side of one end of the handheld part 2 close to the fan head 1 is provided with a protrusion along the circumference thereof, and the fan head 1 and the handheld part 2 are connected through the cooperation of the groove and the protrusion to form a snap connection. In other embodiments, the end of the fan head 1 can be provided with a protrusion, and the end of the handheld part 2 can be provided with a groove, and the fan head 1 and the handheld part 2 are connected through the cooperation of the protrusion and the groove. Alternatively, the connection between the fan head 1 and the handheld part 2 can be through threaded connection or magnetic attraction connection, and the utility model is not limited in this way.

[0023] The fan assembly 13 is arranged inside the fan shell 11, the fan shell 11 forms an air guide channel inside, the fan assembly 13 is wrapped in the air guide channel inside the shell, the fan assembly 13 comprises a first air guide part 131, a second air guide part 132 and a fan wheel 133, the first air guide part 131 is arranged at the air outlet of the fan shell 11, the fan wheel 133 is arranged at one end of the first air guide part 131 away from the air outlet, the second air guide part 132 is arranged between the first air guide part 131 and the fan wheel 133, the air outlet direction of the fan wheel 133 at least partially coincides with the air inlet direction of the second air guide part 132, and the air outlet direction of the second air guide part 132 is arranged at an angle with the air inlet direction of the first air guide part 131. The driving assembly 1 is embedded in the hub of the fan wheel 133 to drive the rotation of the fan wheel 133. The fan assembly 13 can guide the wind direction of the wind blown out by the fan wheel 133 through the second air guide part 132, reduce the energy loss of the straight blowing of the wind to the first air guide part 131, and improve the wind efficiency.

[0024] In the embodiment, the second air guide part 132 is arranged between the first air guide part 131 and the fan wheel 133, the air outlet direction of the fan wheel 133 and the air inlet direction of the second air guide part 132 are arranged to be fully coincident, when the air outlet direction of the fan wheel 133 and the air inlet direction of the second air guide part 132 are arranged to be fully coincident, the air outlet direction of the fan wheel 133 and the air inlet direction of the second air guide part 132 can be kept consistent in the maximum range, in this state, the wind blown by the fan wheel 133 can be more efficiently guided in the direction by the second air guide part 132, and the formation of the reverse resistance wind is further reduced. Meanwhile, the air outlet direction of the second air guide part 132 and the air inlet direction of the first air guide part 131 form a certain angle, and the range of the angle is 0-90 degrees, which can effectively avoid the energy loss caused by the direct blowing of the wind flow to the first air guide part 131, thereby improving the efficiency of the wind.

[0025] Of course, in other embodiments, the air outlet direction of the fan wheel 133 and the air inlet direction of the second air guide part 132 can be arranged to be partially coincident, the air outlet direction of the fan wheel 133 and the air inlet direction of the second air guide part 132 are kept relatively consistent, which is convenient for effectively guiding the wind blown by the fan wheel 133 in the direction by the second air guide part 132.

[0026] As a preferred scheme of the embodiment, a gap is formed between the rear end of the first air guide part 131 and the front end of the second air guide part 132 in the air outlet direction, and the range of the gap is 0-3 mm. The gap can effectively avoid the interference of the wind with different directions from the second air guide part 132 in the space, and further reduce the energy loss.

[0027] As shown in Figures 3 to 5 The portable fan is another embodiment of the utility model. The second air guide part 132 comprises an air guide ring and air guide blades arranged along the circumference of the air guide ring, and the air guide blades are arranged at an angle with the air inlet direction of the first air guide part 131 in the extension direction of the air outlet.

[0028] In the embodiment, the air guide blades are arranged on the circumference of the air guide ring, and each air guide blade can be arranged at equal intervals or unequal intervals. The air guide blades can effectively comb the wind blown by the fan wheel 133, so that the wind entering the second air guide part 132 flows along the surface of the air guide blades in an orderly manner and in the direction of the air outlet. The air guide blades are arranged at an angle with the air inlet direction of the first air guide part 131 in the extension direction of the air outlet, and the range of the angle is 0-90 degrees, which can effectively avoid the wind directly blowing to the first air guide part 131 after the wind flows out of the air guide blades, thereby improving the wind efficiency.

[0029] As a preferred scheme of the embodiment, the air guide blades are radially curved along the air guide ring, and the second air guide part 132 is a static air guide part.

[0030] In the present scheme, the guide vane is arranged along the radial direction of the guide ring to be twisted according to a certain radian, which can form a twisted curved surface or a plurality of continuous twisted curved surfaces. The twisted radian range is 0-180 degrees. By arranging the guide vane along the radial direction of the guide ring to be twisted according to a radian, the wind in the second guide portion 132 can flow according to a certain wind direction, so that the wind out of the second guide portion 132 can enter the air duct of the first guide portion 131 in a better direction, thereby avoiding the wind directly blowing on the first guide portion 131 to form reverse resistance wind and cause energy loss. The second guide portion 132 is arranged as a static guide portion. In the static state of the guide vane, the extension direction of the guide vane towards the air outlet is relatively fixed. At this time, the guide vane can make the wind flowing along the surface of the guide vane more effectively enter the air duct of the first guide portion 131, thereby avoiding the relative motion between the winds with different wind directions and causing interference.

[0031] As another preferred embodiment of the present application, the guide vane is arranged along the radial direction of the guide ring to be an inclined plane at a certain angle with the radial direction.

[0032] As other embodiments of the present application, the second guide portion 132 can also be a dynamic guide portion.

[0033] As shown in Figure 1 , Figure 3 , Figure 5 , the first guide portion 131 is a grille arranged at the inner circumferential side of the air outlet of the fan housing 11 at intervals and partially extends in the direction of the fan housing 11.

[0034] In the present embodiment, the grilles are arranged at equal intervals or at unequal intervals. Each grille partially extends in the direction of the fan housing 11, and the guide channels are formed between adjacent grilles. The grilles can further comb the wind guided from the guide vanes, guide the flow direction of the wind, and reduce the mutual interference between the winds with different wind directions.

[0035] As shown in Figures 3 to 5 , the fan assembly 13 further includes a guide cover 134, and the first guide portion 131, the second guide portion 132, and the fan wheel 133 are arranged in the guide cover 134. The guide cover 134 is arranged on the fan housing 11.

[0036] In the embodiment, the air guide cover 134 forms an air guide channel inside, the first air guide part 131 is arranged at the air outlet end of the air guide cover 134 and is integrally formed with the air guide cover 134, and a fixed column is arranged at the middle part of the air guide cover 134 and extends to the inside of the fan shell 11 along the axial direction. In the air outlet direction, the second air guide part 132, the driving assembly 12 and the fan wheel 133 are sequentially sleeved on the fixed column at the middle part of the air guide cover 134. The air guide cover 134 covers the first air guide part 131, the second air guide part 132 and the fan wheel 133 in the air guide channel inside the air guide cover 134. The wind blown by the fan wheel 133 passes through the second air guide part 132 and the first air guide part 131 in sequence and then reaches the outside of the fan shell 11. The air guide channel formed by the air guide cover 134 can effectively concentrate the wind blown by the fan wheel 133, avoid scattering, increase the wind power, and improve the user experience.

[0037] As a preferred scheme of the embodiment, the air guide cover 134 is embedded in the inside of the shell at the air outlet end of the fan shell 11. The air guide cover 134 is in a cylindrical shape and is adapted to the shape of the air outlet end of the fan shell 11. The outer side surface of the end of the air guide cover 134 close to the air outlet is provided with a groove along the circumferential direction. The inner side surface of the end of the fan shell 11 close to the air outlet is provided with a protrusion along the circumferential direction. The air guide cover 134 and the fan shell 11 are connected through the groove and the protrusion to form a buckle connection.

[0038] As shown in FIGS. 1, 2 and 3, the air guide cover 134 is arranged at the air outlet end of the fan shell 11. Figure 3 Figure 4 As shown in FIGS. 1, 2 and 3, the air guide cover 134 is arranged at the air outlet end of the fan shell 11.

[0039] In the embodiment, the power line inside the fan is routed through the wire hole 1341, which can effectively avoid the disorderly routing and exposure of the power line inside the fan, so that the internal structure of the fan is more hierarchical and the layout is more reasonable.

[0040] As a preferred embodiment of the application, the handheld part 2 includes a handheld shell. The handheld shell is provided with a control circuit board, a key and a power supply. The control circuit board is electrically connected with the key and the power supply. The driving assembly 12 is electrically connected with the control circuit board. The power supply is used to provide power supply for the control circuit board, the key and the driving assembly 12. In the working process of the portable fan, the control circuit board further drives the fan wheel 133 to rotate by controlling the rotation of the driving assembly 12. When the key is pressed, the control circuit board can control the opening and closing of the fan wheel 133 and the speed of the fan wheel 133.

[0041] In other embodiments, the portable fan can also be a clamping type portable fan provided with a clamping part, a table type portable fan provided with a base, a floor type portable fan provided with a supporting part, etc., and is not limited in this way.

[0042] ​In summary, the fan assembly, the fan head and the portable fan have the advantages that the second air guide part is arranged in the middle of the first air guide part and the fan wheel, the air outlet direction of the fan wheel and the air inlet direction of the second air guide part at least partially coincide, meanwhile, the air outlet direction of the second air guide part and the air inlet direction of the first air guide part form an included angle, the air blown by the fan wheel can be effectively guided by the second air guide part, direct air flow blowing on the first air guide part is avoided, the reverse resistance wind is formed, energy loss is reduced, the efficiency of the wind is improved, meanwhile, the wind power is increased, and the use experience of the user is improved.

[0043] The above detailed description is only for the preferred embodiments of the utility model, and does not limit the patent range of the utility model, therefore, equivalent technical changes made by applying the contents of the present application and drawings are included in the patent range of the present application.

Claims

1. A fan assembly disposed within a fan housing, the fan assembly comprising: The fan assembly comprises a first air guide part, a second air guide part and a fan wheel. The first air guide part is arranged at an air outlet of the fan housing. The fan wheel is arranged at one end of the first air guide part away from the air outlet. The second air guide part is arranged between the first air guide part and the fan wheel. An air outlet direction of the fan wheel at least partially coincides with an air inlet direction of the second air guide part. An air outlet direction of the second air guide part is arranged at an angle with an air inlet direction of the first air guide part. The fan assembly is used to guide the air blown by the fan wheel through the second air guide part to reduce the energy loss caused by the air directly blowing to the first air guide part.

2. The fan assembly of claim 1, wherein: The second air guide part comprises an air guide ring and air guide blades arranged along a circumferential direction of the air guide ring. An extension direction of the air guide blades towards the air outlet is arranged at an angle with the air inlet direction of the first air guide part.

3. The fan assembly of claim 2, wherein: The air guide blades are radially curved along the air guide ring.

4. The fan assembly of claim 2, wherein: The second air guide part is a static air guide part.

5. The fan assembly of claim 1, wherein: The first air guide part is a grille. The grille is arranged at an inner circumferential side of the air outlet of the fan housing in a spaced manner and partially extends along an inner direction of the fan housing.

6. The fan assembly of any one of claims 1-5, wherein: The fan assembly further comprises an air guide cover. The first air guide part, the second air guide part and the fan wheel are arranged in the air guide cover. The air guide cover is arranged on the fan housing.

7. The fan assembly of claim 6, wherein: One end of a circumferential side of the air guide cover close to the air outlet is provided with a threading hole.

8. A fan head comprising a fan housing, a drive assembly, characterized in that: The fan assembly as claimed in any one of claims 1-7 is further provided. The driving assembly is embedded in a hub of the fan wheel to drive the fan wheel to rotate.

9. A portable fan characterized by: The fan assembly as claimed in any one of claims 1-7 or the fan head as claimed in claim 8 is provided.

10. The portable fan of claim 9, wherein: The portable fan is a handheld portable fan provided with a handheld part. The portable fan is a handheld portable fan provided with a handheld part.

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