CN223374671U - Handheld fan - Google Patents
Handheld fanInfo
- Publication number
- CN223374671U CN223374671U CN202422896224.7U CN202422896224U CN223374671U CN 223374671 U CN223374671 U CN 223374671U CN 202422896224 U CN202422896224 U CN 202422896224U CN 223374671 U CN223374671 U CN 223374671U
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- China
- Prior art keywords
- fan
- blades
- air
- air guide
- wind
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- Air-Conditioning For Vehicles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The handheld fan comprises a fan unit and a holding unit, wherein the fan unit comprises a fan barrel, a first air guide structure and a second air guide structure and a fan assembly are arranged in the fan barrel, the first air guide structure comprises a plurality of first air guide blades which rotate clockwise or anticlockwise, the second air guide structure is arranged at the downstream of the first air guide structure and comprises a plurality of second air guide blades, the rotation direction of the second air guide blades is opposite to that of the first air guide blades, the fan assembly comprises a fan seat, a plurality of fan blades are fixedly arranged on the periphery of the fan seat, the rotation direction of the fan blades is opposite to that of the first air guide blades, the holding unit comprises a holding shell, one side of the top of the holding shell is hinged with the fan barrel, and a position-adjustable hook is arranged at the bottom of the holding shell. The application can improve the air outlet speed, reduce noise, and simultaneously can freely adjust the air outlet direction, thereby improving the use experience.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a handheld fan.
Background
The handheld fan is taken as a necessary good product for relieving summer heat, and the handheld fan gains the favor of the majority of users by virtue of the convenience and the high efficiency. In hot summer, such small fans provide a strong and cool wind experience for the user through a carefully designed fan module. The backpack is small in size, light in weight and convenient to carry, and can easily cope with various travel demands no matter the backpack is put into the backpack or the backpack is directly held by a hand. Therefore, the hand-held fan is an indispensable part of modern life, and is particularly favored by consumers who pursue quality of life and practicality. The existence of the tea leaves the cooling effect not limited to the home, but is portable and enjoyed at any time.
In the traditional handheld fan, the fan unit and the holding unit are fixedly connected, the air outlet direction cannot be adjusted, and the air outlet direction of the fan unit can be adjusted only by changing the wrist angle of the user, so that the wrist of the user is required to keep a fixed posture all the time, the wrist is tired, and the use experience is reduced.
Disclosure of utility model
In view of the above, the utility model aims to provide a handheld fan which can improve the air outlet speed and reduce noise, and can freely adjust the air outlet direction to improve the use experience.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
the handheld fan comprises a fan unit and a holding unit connected with the fan unit;
The fan unit comprises a fan cylinder, wherein a first air guide structure, a second air guide structure and a fan assembly which are coaxially arranged are arranged in the fan cylinder; the second air guide structure and the fan assembly are respectively arranged at two sides of the first air guide structure, and the air outlet direction of the fan assembly is from the first air guide structure to the second air guide structure;
The first air guide structure comprises a plurality of first air guide blades, and the first air guide blades rotate clockwise or anticlockwise towards one side close to the fan cylinder;
the second air guide structure is arranged at the downstream of the first air guide structure along the air flow direction, and comprises a plurality of second air guide blades which are rotatably arranged, and the rotation direction of the second air guide blades is opposite to that of the first air guide blades;
The fan assembly comprises a fan seat driven by a power piece, a plurality of fan blades which are rotatably arranged are fixedly arranged on the periphery of the fan seat, and the rotating direction of the fan blades is opposite to that of the first wind guide blades;
The holding unit comprises a holding shell, one side of the top of the holding shell is hinged with the fan cylinder, the fan cylinder can rotate back and forth to one side of the holding shell, and a position-adjustable hook is arranged at the bottom of the holding shell.
Preferably, the first wind guiding structure comprises a first wind guiding seat coaxially arranged with the fan cylinder, and the first wind guiding blades are fixedly arranged between the first wind guiding seat and the fan cylinder, and a plurality of the first wind guiding blades are distributed around the first wind guiding seat at equal intervals in the axial direction.
Preferably, the second air guiding structure comprises a second air guiding seat, and the second air guiding seat is fixedly arranged on the first air guiding seat and is positioned at the downstream of the first air guiding seat along the air flow direction;
The outside of second wind-guiding seat is provided with the adapter sleeve of coaxial setting, second wind-guiding blade sets firmly in between the second wind-guiding seat with the adapter sleeve.
Preferably, the second air guide seat is of a hollow structure, one end of the second air guide seat is provided with a supporting cover plate, and the supporting cover plate is arranged close to the first air guide seat;
The support cover plate is provided with a plurality of support blades which are arranged in a rotating mode, the positions and the number of the support blades are in one-to-one correspondence with those of the auxiliary wind guide blades, and the support blades are abutted with the auxiliary wind guide blades;
And a guard board is arranged at the other end of the second air guide seat.
Preferably, an air outlet cover is arranged at the air outlet end of the fan cylinder, and the connecting sleeve is clamped in the air outlet cover and positioned in the fan cylinder.
Preferably, an air inlet cover is arranged at the air inlet end of the fan cylinder, a plurality of air inlet grids are arranged in the air inlet cover, and the air inlet grids are distributed at equal intervals along the circumferential direction of the fan cylinder.
Preferably, the number of the fan blades is smaller than the number of the first wind guiding blades, and the number of the first wind guiding blades is smaller than the number of the second wind guiding blades.
Preferably, the holding shell comprises a left half shell and a right half shell which are buckled with each other, the tops of the left half shell and the right half shell are arc-shaped, and the left half shell is hinged with the fan cylinder.
Preferably, both sides of the bottom of the holding shell are provided with sliding grooves matched with the hooks, and the inner walls of the sliding grooves are provided with limiting clamping protrusions.
Preferably, the hook comprises two oppositely arranged connecting rods, a connecting boss matched with the sliding groove is arranged on the inner side of each connecting rod, and the connecting boss is arranged at the top of each connecting rod and is of a T-shaped structure;
the bottom of the two connecting rods is fixedly provided with a hook body.
After the technical scheme is adopted, the utility model has the beneficial effects that:
The handheld fan comprises the fan unit and the holding unit connected with the fan unit, wherein the fan unit is used for exhausting air, and the holding unit is used for holding and is convenient to take. The fan unit comprises a fan barrel, a first air guide structure and a second air guide structure and a fan assembly are coaxially arranged in the fan barrel, the second air guide structure and the fan assembly are respectively arranged on two sides of the first air guide structure, the air outlet direction of the fan assembly is from the first air guide structure to the second air guide structure, the air outlet flow of the fan assembly can be conducted dredging and reversing by the first air guide structure and the second air guide structure in sequence, the flow direction of the air flow is changed, the air outlet speed is improved, and the air outlet noise is reduced.
The fan assembly comprises a fan seat driven by a power piece, a plurality of blades are fixedly arranged on the periphery of the fan seat, the rotation direction of the blades is opposite to that of the first wind-guiding blades, when the blades are driven to rotate to generate air flow, the generated air flow firstly passes through the first wind-guiding blades, and due to the fact that the rotation direction of the blades is opposite to that of the first wind-guiding blades and the first wind-guiding blades are arranged in a rotating mode, the air flow can be cut and redirected, the rectifying effect of the air flow can be enhanced, and accordingly turbulent flow and vortex flow of the air flow in the fan cylinder are reduced, noise is reduced, and the air outlet rate is improved.
When the air flow enters the second air guide blade through the first air guide blade, the rotation directions of the second air guide blade and the first air guide blade are opposite, so that the air flow is cut and redirected through the second air guide blade, the air flow is more orderly and concentrated, the air outlet efficiency is further improved, the dynamic characteristics of the air flow are optimized, the air flow is smoother when the air flow passes through the second air guide blade, the energy loss is reduced, and the orderly air flow is beneficial to reducing turbulence and vortex, thereby further reducing noise and improving the use experience.
The holding unit comprises a holding shell, one side of the top of the holding shell is hinged with the fan cylinder, the fan cylinder can rotate back and forth to one side of the holding shell, and a position-adjustable hook is arranged at the bottom of the holding shell. When the hand-held fan is used, a user can swing the angle between the fan cylinder body and the holding shell body, so that the air outlet direction of the hand-held fan is changed, the air outlet direction of the fan unit can be adjusted without changing the wrist angle of the user, the hand-held fan is labor-saving, and the use experience is improved. In addition, the handheld fan can be hung at any place through the hook without being held by hand, so that the application range is enlarged and the application effect is improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a handheld fan according to an embodiment of the present utility model;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is an exploded view of another hand-held fan in accordance with an embodiment of the present utility model;
FIG. 4 is an exploded view of the second air guiding structure of FIG. 2;
fig. 5 is an enlarged view of a portion a in fig. 3;
in the figure:
1. a fan unit;
2. a grip unit;
3. 31, an air outlet cover, 32, an air inlet cover, 33 and an air inlet grille;
4. The device comprises a first wind guide structure, 41, first wind guide blades, 42 and a first wind guide seat;
5. a second air guiding structure; 51, second wind guide blades, 511, main wind guide blades, 512, auxiliary wind guide blades, 52, second wind guide seats, 53, connecting sleeves, 54, supporting cover plates, 55, supporting blades, 56 and guard plates;
6. the fan comprises a fan assembly, a fan seat, a fan blade, a fan seat and a fan blade;
7. The device comprises a holding shell, a left half shell, a right half shell, a 73, a chute, a 74 and a limiting clamp protrusion, wherein the holding shell is provided with a holding groove;
8. The hook comprises a hook body, a hook 81, a connecting rod 82, a connecting boss 83 and a hook body.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, the utility model comprises a fan unit 1 and a holding unit 2 connected with the fan unit, wherein the fan unit 1 is used for exhausting air, and the holding unit 2 is used for holding and is convenient to take. The fan unit 1 comprises a fan cylinder 3, a first air guide structure 4, a second air guide structure 5 and a fan assembly 6 which are coaxially arranged in the fan cylinder 3, wherein the second air guide structure 5 and the fan assembly 6 are respectively arranged on two sides of the first air guide structure 4, the air outlet direction of the fan assembly 6 is from the first air guide structure 4 to the second air guide structure 5, the air outlet flow of the fan assembly 6 can be conducted dredging and reversing by the first air guide structure 4 and the second air guide structure 5 in sequence, the flow direction of the air flow is changed, the air outlet speed is improved, and the air outlet noise is reduced.
Specifically, the first air guiding structure 4 comprises a plurality of first air guiding blades 41, the plurality of first air guiding blades 41 rotate clockwise or anticlockwise towards one side close to the fan cylinder 3, the second air guiding structure 5 is arranged at the downstream of the first air guiding structure 4 along the air flow direction, the second air guiding structure 5 comprises a plurality of second air guiding blades 51 which are arranged in a rotating mode, the rotating direction of the second air guiding blades 51 is opposite to that of the first air guiding blades 41, the fan assembly 6 comprises a fan seat 61 driven by a power piece (not shown in the figure), a plurality of fan blades 62 which are arranged in a rotating mode are fixedly arranged on the periphery of the fan seat 61, and the rotating direction of the fan blades 62 is opposite to that of the first air guiding blades 41.
In the application, the power part is a motor, the power part is arranged on the first air guiding structure 4, the fan seat 61 is sleeved on the power part, the structure is compact, the space is saved, and meanwhile, the installation and the maintenance are convenient. The power member directly drives the fan base 61, reducing transmission links and improving the force transmission efficiency, thereby improving the overall efficiency of the fan assembly 6. The fan blades 62 are arranged on the peripheral wall of the fan seat 61 at intervals, so that uniform distribution and uniform flow of air flow can be ensured, mutual interference of the air flow between the fan blades 62 is reduced, and the output efficiency of wind power is improved. The motor generally comprises a stator and a rotor, the fan base 61 is sleeved on the rotor, the fan base 61 is driven to rotate when the rotor rotates, and the specific arrangement of the motor is realized by adopting a conventional technology and is not repeated herein.
When the fan blade 62 is driven to rotate to generate air flow, the generated air flow firstly passes through the first air guiding blade 41, and the air flow is cut and redirected due to the fact that the rotation direction of the fan blade 62 is opposite to that of the first air guiding blade 41, and the air flow can be rectified, so that the air flow is more orderly, turbulence and vortex of the air flow in the fan cylinder 3 are reduced, noise is reduced, and the air outlet speed is improved.
The holding unit 2 comprises a holding shell 7, one side of the top of the holding shell 7 is hinged with the fan cylinder 3, the fan cylinder 3 can reciprocally rotate towards one side of the holding shell 7, and a position-adjustable hook 8 is arranged at the bottom of the holding shell 7. When the hand-held fan is used, a user can swing the angle between the fan cylinder body 3 and the holding shell 7, so that the air outlet direction of the hand-held fan is changed, the air outlet direction of the fan unit 1 can be adjusted without changing the wrist angle of the user, the hand-held fan is labor-saving, and the use experience is improved. In addition, the handheld fan can be hung at any place through the hook 8 without being held by hand, so that the application range is enlarged and the application effect is improved.
Preferably, the first wind guiding structure 4 includes a first wind guiding seat 42 coaxially arranged with the fan cylinder 3, the first wind guiding blades 41 are fixedly arranged between the first wind guiding seat 42 and the fan cylinder 3, and a plurality of first wind guiding blades 41 are equidistantly arranged around the axial direction of the first wind guiding seat 42. The power member is mounted on the first air guiding seat 42. Preferably, the fan cylinder 3, the first wind guiding blades 41 and the first wind guiding seat 42 are integrally formed, so as to enhance the overall strength of the first wind guiding structure 4.
The second wind guiding structure 5 comprises a second wind guiding seat 52, the second wind guiding seat 52 is fixedly arranged on the first wind guiding seat 42 and positioned at the downstream of the first wind guiding seat in the airflow direction, a connecting sleeve 53 which is coaxially arranged is arranged at the outer side of the second wind guiding seat 52, and the second wind guiding blades 51 are fixedly arranged between the second wind guiding seat 52 and the connecting sleeve 53. The second air guiding seat 52 is detachably connected with the first air guiding seat 42, preferably by a screw connection.
The second wind guiding seat 52 is of a hollow structure, a supporting cover plate 54 is arranged at one end of the second wind guiding seat 52, the supporting cover plate 54 is arranged close to the first wind guiding seat 42, the second wind guiding blades 51 comprise a main wind guiding blade 511 and a secondary wind guiding blade 512, the main wind guiding blade 511 and the secondary wind guiding blade 512 are alternately arranged, a plurality of supporting blades 55 which are rotatably arranged are arranged on the supporting cover plate 54, the positions and the number of the supporting blades 55 are in one-to-one correspondence with those of the secondary wind guiding blades 512, the supporting blades 55 are abutted against the secondary wind guiding blades 512, the supporting cover plate 54 is arranged at one end of the second wind guiding seat 52, the supporting cover plate 54 can block the inside of the second wind guiding seat 52 to prevent air flow from passing through the inside of the second wind guiding seat, the air flow direction is maintained, meanwhile, a circuit board is arranged on one side, far away from the fan assembly 6, of the supporting cover plate 54, and other installation requirements are met. Meanwhile, the supporting blades 55 are installed on the supporting cover plate 54, the supporting blades 55 can support the auxiliary air guide blades 512, the overall strength of the second air guide blades 51 is sequentially improved, the rectifying capacity of air flow is improved, and the air flow can be more orderly. The other end of the second air guide seat 52 is provided with a guard plate 56. Preferably, a display screen is mounted on the support cover 54 for displaying the current gear or power or time of use, and the cover 56 is preferably a transparent cover to facilitate the user's timely viewing of the display on the display screen.
The air outlet end of the fan cylinder body 3 is provided with an air outlet cover 31, and the connecting sleeve 53 is clamped in the air outlet cover 31 and is positioned in the fan cylinder body 3. An air inlet cover 32 is arranged at the air inlet end of the fan cylinder body 3, a plurality of air inlet grids 33 are arranged in the air inlet cover 32, and the air inlet grids 33 are distributed at equal intervals along the circumferential direction of the fan cylinder body 3. The air inlet grille 33 can primarily rectify the air flow entering the fan cylinder 3, so that the air flow is more orderly, the turbulence of the air flow before entering the fan blades 62 is reduced, the transmission efficiency of wind power is improved, the noise generated by the turbulence of the air flow is reduced, and quieter use experience is provided.
The number of fan blades 62 is smaller than the number of first air guiding blades 41, and the number of first air guiding blades 41 is smaller than the number of second air guiding blades 51. The fan blades 62 have the largest surface area, can suck the air flow from the outside into the fan cylinder 3 with the largest intensity, and can blow the air flow with the largest flow rate to the first air guiding blades 41, when the air flow passes between the two adjacent first air guiding blades 41, the first air guiding blades 41 are smaller than the second air guiding blades 51, so that the air flow can pass through quickly and be cut and redirected for preliminary cutting, and when the air flow is cut and redirected for the second time by the second air guiding blades 51, the intensity of the cut and redirected is the largest because of the largest quantity, and the capability of reducing turbulence and vortex is the largest, so that the noise reduction intensity is the largest in the process of discharging to the outside, thereby improving the use effect.
In the present application, the grip housing 7 includes a left half shell 71 and a right half shell 72 fastened to each other, the top portions of the left half shell 71 and the right half shell 72 are each provided in an arc shape, and the left half shell 71 is hinged with the fan cylinder 3. The arc shape is arranged to avoid the fan cylinder 3 and optimize the integral modeling.
Both sides of the bottom of the holding shell 7 are provided with sliding grooves 73 matched with the hooks 8, and the inner walls of the sliding grooves 73 are provided with limiting clamping protrusions 74. The sliding groove 73 is formed by mutually buckling two half sliding grooves respectively arranged on the left half shell 71 and the right half shell 72, so that the split-type holding shell 7 is convenient for installing various devices inside the split-type holding shell, including a battery, a control panel, a charging port, a control button and the like, and meanwhile, the hook 8 is convenient to install in the sliding groove 73.
The hook 8 comprises two connecting rods 81 which are oppositely arranged, connecting bosses 82 which are matched with the sliding grooves 73 are arranged on the inner sides of the connecting rods 81, the connecting bosses 82 are arranged at the top of the connecting rods 81 and are of T-shaped structures, and hook bodies 83 are fixedly arranged at the bottoms of the two connecting rods 81. The connection boss 82 is slidably arranged in the chute 73, and through the arrangement of the limiting clamp protrusion 74, the limiting clamp protrusion 74 is close to the top of the chute 73, and when the connection boss 82 vertically slides upwards, the connection boss 82 can be clamped and limited by the limiting clamp protrusion 74, so that the connection boss is limited to move downwards, and the occupied space of the hook 8 and the holding shell 7 is reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The handheld fan is characterized by comprising a fan unit and a holding unit connected with the fan unit;
The fan unit comprises a fan cylinder, wherein a first air guide structure, a second air guide structure and a fan assembly which are coaxially arranged are arranged in the fan cylinder; the second air guide structure and the fan assembly are respectively arranged at two sides of the first air guide structure, and the air outlet direction of the fan assembly is from the first air guide structure to the second air guide structure;
The first air guide structure comprises a plurality of first air guide blades, and the first air guide blades rotate clockwise or anticlockwise towards one side close to the fan cylinder;
the second air guide structure is arranged at the downstream of the first air guide structure along the air flow direction, and comprises a plurality of second air guide blades which are rotatably arranged, and the rotation direction of the second air guide blades is opposite to that of the first air guide blades;
The fan assembly comprises a fan seat driven by a power piece, a plurality of fan blades which are rotatably arranged are fixedly arranged on the periphery of the fan seat, and the rotating direction of the fan blades is opposite to that of the first wind guide blades;
The holding unit comprises a holding shell, one side of the top of the holding shell is hinged with the fan cylinder, the fan cylinder can rotate back and forth to one side of the holding shell, and a position-adjustable hook is arranged at the bottom of the holding shell.
2. The hand-held fan of claim 1, wherein the first wind guiding structure comprises a first wind guiding seat coaxially arranged with the fan cylinder, the first wind guiding blades are fixedly arranged between the first wind guiding seat and the fan cylinder, and a plurality of the first wind guiding blades are equidistantly arranged around the axial direction of the first wind guiding seat.
3. The hand-held fan of claim 2, wherein the second air guiding structure comprises a second air guiding seat fixedly arranged on the first air guiding seat and positioned downstream in the air flow direction;
The outside of second wind-guiding seat is provided with the adapter sleeve of coaxial setting, second wind-guiding blade sets firmly in between the second wind-guiding seat with the adapter sleeve.
4. The hand-held fan according to claim 3, wherein the second air guiding seat is of a hollow structure, a supporting cover plate is installed at one end of the second air guiding seat, and the supporting cover plate is arranged close to the first air guiding seat;
The support cover plate is provided with a plurality of support blades which are arranged in a rotating mode, the positions and the number of the support blades are in one-to-one correspondence with those of the auxiliary wind guide blades, and the support blades are abutted with the auxiliary wind guide blades;
And a guard board is arranged at the other end of the second air guide seat.
5. A hand-held fan according to claim 3, wherein the air outlet end of the fan barrel is provided with an air outlet cover, and the connecting sleeve is clamped to the air outlet cover and is positioned in the fan barrel.
6. The hand-held fan as claimed in claim 1, wherein the air inlet end of the fan cylinder is provided with an air inlet cover, a plurality of air inlet grids are arranged in the air inlet cover, and the air inlet grids are distributed at equal intervals along the circumferential direction of the fan cylinder.
7. The hand-held fan of claim 1, wherein the number of fan blades is less than the number of first wind-guiding blades, and the number of first wind-guiding blades is less than the number of second wind-guiding blades.
8. The hand-held fan of claim 1, wherein the grip housing comprises a left half shell and a right half shell which are fastened to each other, the top portions of the left half shell and the right half shell are arc-shaped, and the left half shell is hinged with the fan cylinder.
9. The hand-held fan of claim 1, wherein both sides of the bottom of the holding shell are provided with sliding grooves matched with the hooks, and the inner walls of the sliding grooves are provided with limiting clamping protrusions.
10. The hand-held fan as claimed in claim 9, wherein the hook comprises two oppositely arranged connecting rods, a connecting boss matched with the sliding groove is arranged on the inner side of each connecting rod, and the connecting boss is arranged on the top of each connecting rod and is of a T-shaped structure;
the bottom of the two connecting rods is fixedly provided with a hook body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422896224.7U CN223374671U (en) | 2024-11-27 | 2024-11-27 | Handheld fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422896224.7U CN223374671U (en) | 2024-11-27 | 2024-11-27 | Handheld fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223374671U true CN223374671U (en) | 2025-09-23 |
Family
ID=97096185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422896224.7U Active CN223374671U (en) | 2024-11-27 | 2024-11-27 | Handheld fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223374671U (en) |
-
2024
- 2024-11-27 CN CN202422896224.7U patent/CN223374671U/en active Active
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