CN111322260A - Handheld fan - Google Patents
Handheld fan Download PDFInfo
- Publication number
- CN111322260A CN111322260A CN202010258413.5A CN202010258413A CN111322260A CN 111322260 A CN111322260 A CN 111322260A CN 202010258413 A CN202010258413 A CN 202010258413A CN 111322260 A CN111322260 A CN 111322260A
- Authority
- CN
- China
- Prior art keywords
- shell
- air
- curved surface
- front shell
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0673—Battery powered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
Abstract
The invention relates to a handheld fan, relating to the technical field of fans.A flow guide curved surface with a structure that the diameter is gradually increased from an air inlet to an air outlet is arranged on the outer annular wall of a flow guide cover; the inner ring wall at the upper end of the front shell is provided with a front shell inner curved surface with a structure of which the diameter is gradually reduced from the air inlet to the air outlet; the inner ring wall at the upper end of the rear shell is provided with a rear shell inner curved surface with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the back shell inner curved surface and the front shell inner curved surface are spliced into an air duct with the aperture at two ends smaller than the aperture in the middle. The mixed airflow sprayed out at high speed enables the wind to become soft and skin-friendly, and simultaneously ensures that the wind quantity is large enough; the structure is small and exquisite, and the portable carrying is easy.
Description
Technical Field
The invention relates to the technical field of fans, in particular to a handheld fan.
Background
At present, handheld fans on the market are single in appearance, free of innovation, large in size, capable of supplying air directionally, small in blowing area, large in local air volume, uneven in blowing to the face or on the body, and incapable of forming experience similar to natural wind.
The traditional fan is too high in price, single in function, not convenient enough, more prone to being used at home, and the main reason for lacking purchasing intention of users is urgent to be improved.
Disclosure of Invention
The invention aims to provide a handheld fan with reasonable design aiming at the defects and shortcomings of the prior art, the mixed airflow sprayed out at high speed enables the wind to become soft and close to the skin, and meanwhile, the enough large wind quantity is ensured; the structure is small and exquisite, and the portable carrying is easy.
In order to achieve the purpose, the invention adopts the following technical scheme: the fan comprises a fan shell, a key, a motor, a circuit board, an oblique flow supercharging impeller and a lithium battery; the fan shell consists of a flow guide cover, a front shell, a rear shell and a handle tail cover; the front shell and the rear shell are buckled and connected, the air guide sleeve is inserted and buckled at an air outlet in the upper end of the front shell, the lower end of an integral body formed by buckling the front shell and the rear shell is a handle, and the tail end of the handle is buckled with a handle tail cover; the motor is inserted and fastened in the upper end of the front shell, an output shaft of the motor is connected with an oblique flow supercharging impeller, the oblique flow supercharging impeller is arranged in the upper end of the rear shell, the button is electrically connected with the motor through a circuit on a circuit board, the circuit board is embedded and fixed at the upper end position inside the handle, and the button is arranged in the shell wall of the front shell in a penetrating way; the lithium battery is electrically connected with the motor through a circuit on the circuit board, and is embedded in the handle and positioned below the circuit board; the outer ring wall of the air guide sleeve is provided with an air guide curved surface with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the inner ring wall at the upper end of the front shell is provided with a front shell inner curved surface with a structure of which the diameter is gradually reduced from the air inlet to the air outlet; the inner ring wall at the upper end of the rear shell is provided with a rear shell inner curved surface with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the back shell inner curved surface and the front shell inner curved surface are spliced into an air duct with the aperture at two ends smaller than the aperture in the middle.
Further, the motor is a high-torque motor.
Furthermore, a plurality of strip-shaped guide vanes are integrally formed at the air outlet of the inner ring wall at the upper end of the front shell.
Furthermore, a strip-shaped grid is clamped at the position of an air inlet at the upper end of the rear shell.
Furthermore, a handle tail cover is connected with a hand-held rope in a penetrating way.
Furthermore, the circuit board is connected with a charging interface, the charging interface is clamped in the shell wall of the rear shell, and the charging interface is electrically connected with the lithium battery through a circuit of the circuit board.
The working principle of the invention is as follows: the air duct is formed by an inner cavity formed by buckling a rear shell, a front shell and a flow guide cover, the lithium battery provides electric energy for the motor to work, the motor drives an oblique flow supercharging impeller to rotate, the oblique flow supercharging impeller introduces airflow into the air duct from an air inlet, and according to the wall attachment benefit of fluid, the airflow forms cross mixed airflow at a position close to the air outlet to be ejected at a high speed after the airflow is guided by the inner curved surface and the flow guide curved surface of the front shell.
After adopting the structure, the invention has the beneficial effects that: the invention provides a handheld fan, mixed airflow sprayed out at high speed enables wind to become soft and skin-friendly, and meanwhile, enough large wind quantity is guaranteed; the structure is small and exquisite, and the portable carrying is easy.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a sectional view taken along line a-a in fig. 1.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is an assembly view of the present invention.
Fig. 5 is a cross-sectional view of the pod of the present invention.
Fig. 6 is a schematic structural view of the diagonal flow supercharging impeller of the present invention.
Fig. 7 is a cross-sectional view of a rear housing of the present invention.
Fig. 8 is a schematic structural view of a front case in the present invention.
Fig. 9 is a sectional view of a front case of the present invention.
Description of reference numerals:
the device comprises a guide cover 1, a guide curved surface 1-1, a guide cover buckle 1-2, a front shell inner curved surface 2-1, a long strip-shaped guide vane 2-2, a front shell buckle 2-3, a clamping hook 2-4, a button 3, a motor 4, a circuit board 5, a charging interface 5-1, an oblique flow supercharging impeller 6, a rear shell 7, a rear shell inner curved surface 7-1, a strip-shaped grid 7-2, a clamping groove 7-3, a lithium battery 8, a handle tail cover 9 and a portable rope 10.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 9, the following technical solutions are adopted in the present embodiment: the fan comprises a fan shell, a key 3, a motor 4, a circuit board 5, an oblique flow supercharging impeller 6 and a lithium battery 8; the fan shell consists of a flow guide cover 1, a front shell 2, a rear shell 7 and a handle tail cover 9; the front shell 2 and the rear shell 7 are buckled and connected (a plurality of front shell buckles 2-3 are integrally formed on the rear ring surface of the upper end of the front shell 2, a plurality of clamping grooves 7-3 hooked with the front shell buckles 2-3 are integrally formed on the front ring surface wall of the upper end of the rear shell 7), the guide cover 1 arranged in a circular arc shape is inserted at the air outlet position in the upper end of the front shell 2, the outer end surface of the guide cover 1 is flush with the air outlet end part of the front shell 2 (a plurality of guide cover buckles 1-2 are integrally formed at the inner end of the guide cover 1, a plurality of clamping hooks 2-4 hooked with the guide cover buckles 1-2 are integrally formed on the inner ring wall of the upper end of the front shell 2, the lower end of the whole formed by buckling the front shell 2 and the rear shell 7 is a handle (the air inlet of the rear shell 7 is obliquely arranged at a certain angle with the handle, or is arranged in parallel, the air outlet of the front shell 2 is obliquely arranged at a, or parallel arrangement), the tail end of the handle is buckled with a handle tail cover 9, and a hand rope 10 is connected on the handle tail cover 9 in a penetrating way; the large-torque motor 4 is inserted and fastened in the upper end of the front shell 2, an output shaft of the motor 4 is connected with an oblique flow supercharging impeller 6 (the large-torque motor 4 is provided with the oblique flow supercharging impeller 6, wind resistance and friction force inside an air duct are overcome, wind is blown farther, the oblique flow supercharging impeller 6 is arranged in the upper end of the rear shell 7, a bar-shaped grid 7-2 (the safety is ensured and the appearance is improved) is clamped at a wind inlet position at the upper end of the rear shell 7, the key 3 is electrically connected with the motor 4 through a circuit on a circuit board 5 (the circuit is provided with a speed regulating module, the key 3 can regulate the rotating speed of the motor 4 through the speed regulating module), the circuit board 5 is embedded and fixed at the upper end position inside the handle, the circuit board 5 is connected with a charging interface 5-1, the charging interface 5-1 is clamped in the shell wall of the rear shell 7, and the charging interface 5-1 is electrically, the key 3 is arranged in the shell wall of the front shell 2 in a penetrating way; the lithium battery 8 is electrically connected with the motor 4 through a circuit on the circuit board 5, and the lithium battery 8 is embedded in the handle and positioned below the circuit board 5; the outer ring wall of the air guide sleeve 1 is provided with an air guide curved surface 1-1 with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the inner ring wall at the upper end of the front shell 2 is provided with a front shell inner curved surface 2-1 with a structure of which the diameter is gradually reduced from an air inlet to an air outlet, and a plurality of strip-shaped guide vanes 2-2 (used for increasing the air flow speed of outlet air) are integrally formed at the positions of the air outlet on the front shell inner curved surface 2-1; the inner ring wall at the upper end of the rear shell 7 is provided with a rear shell inner curved surface 7-1 with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the rear shell inner curved surface 7-1 and the front shell inner curved surface 2-1 are spliced into an air duct with the apertures at two ends smaller than the aperture in the middle, according to the wall attachment benefit of fluid, after the air flow is guided by the air guide sleeve 1 with the flow guide curved surface 1-1 and the inner wall of the front shell inner curved surface 2-1, the air flow sprayed at high speed can form cross mixing at a short distance from the air outlet, so that the air becomes soft and skin-friendly, the air volume is ensured to be large enough, and the air flow is blown up and cannot feel uncomfortable, and is completely the experience of natural wind.
The working principle of the specific embodiment is as follows: an air channel is formed by an inner cavity formed by buckling a rear shell 7, a front shell 2 and a flow guide cover 1, a lithium battery 8 provides electric energy for the motor 4 to work, the motor 4 drives an oblique flow supercharging impeller 6 to rotate, the oblique flow supercharging impeller 6 introduces air flow into the air channel from an air inlet in the direction indicated by an arrow in figure 2, and according to the wall attachment benefit of fluid, after the air flow is guided by a curved surface 2-1 and a curved flow guide surface 1-1 in the front shell, the high-speed sprayed air flow can form cross mixed air flow at a position close to an air outlet, so that the air becomes soft and skin-friendly.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. through fluid simulation calculation, the oblique flow supercharging impeller 6 is applied, the impeller is large in air pressure and large in load, so that a large-torque motor which is larger than the original motor is matched, the air pressure is greatly increased, and because the air pressure is greatly increased, the wind resistance and the friction force in an air duct can be overcome, and the air can be blown farther;
2. the periphery of the air guide sleeve is provided with an inward-bent air guide curved surface 1-1, so that air flow can achieve pressurization and flow guide effects, according to the wall attachment benefit of fluid, the air flow sprayed out at a high speed can form cross mixing with the air flow attached to the wall on the inward-bent surface (the inward-bent curved surface 2-1) inside the front shell 2 at a position short of an air outlet, so that the air becomes soft and skin-friendly, the air volume is ensured to be large enough, the air flow is blown up without being uncomfortable, and the experience of natural wind is completely realized;
3. the air outlet is designed to be annularly extruded to discharge air (formed by the trend of reducing the aperture formed by the flow guide curved surface 1-1 and the front shell inner curved surface 2-1), the wind speed is higher, and the wind power is stronger.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. A hand-held fan comprises a fan shell, a key (3), a motor (4), a circuit board (5), an oblique flow supercharging impeller (6) and a lithium battery (8); the fan shell consists of a flow guide cover (1), a front shell (2), a rear shell (7) and a handle tail cover (9); the front shell (2) is buckled and connected with the rear shell (7), the air guide sleeve (1) is inserted and buckled at an air outlet in the upper end of the front shell (2), the lower end of a whole formed by buckling the front shell (2) and the rear shell (7) is a handle, and the tail end of the handle is buckled with a handle tail cover (9); the motor (4) is inserted and fastened in the upper end of the front shell (2), an output shaft of the motor (4) is connected with an oblique flow supercharging impeller (6), the oblique flow supercharging impeller (6) is arranged in the upper end of the rear shell (7), the key (3) is electrically connected with the motor (4) through a circuit on a circuit board (5), the circuit board (5) is embedded and fixed at the upper end position inside the handle, and the key (3) is arranged in the shell wall of the front shell (2) in a penetrating mode; the lithium battery (8) is electrically connected with the motor (4) through a circuit on the circuit board (5), and the lithium battery (8) is embedded in the handle and positioned below the circuit board (5);
the method is characterized in that: the outer ring wall of the air guide sleeve (1) is provided with an air guide curved surface (1-1) with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the inner annular wall at the upper end of the front shell (2) is provided with a front shell inner curved surface (2-1) with a structure of which the diameter is gradually reduced from the air inlet to the air outlet; the inner ring wall at the upper end of the rear shell (7) is provided with a rear shell inner curved surface (7-1) with a structure of which the diameter is gradually increased from the air inlet to the air outlet; the rear shell inner curved surface (7-1) and the front shell inner curved surface (2-1) are spliced into an air duct with the aperture at two ends smaller than the aperture in the middle.
2. A hand held fan as claimed in claim 1, wherein: the motor (4) is a large-torque motor.
3. A hand held fan as claimed in claim 1, wherein: the air outlet of the inner ring wall at the upper end of the front shell (2) is integrally formed with a plurality of strip-shaped guide vanes (2-2).
4. A hand held fan as claimed in claim 1, wherein: and a strip-shaped grid (7-2) is clamped at the air inlet position at the upper end of the rear shell (7).
5. A hand held fan as claimed in claim 1, wherein: the handle tail cover (9) is connected with a hand-held rope (10) in a penetrating way.
6. A hand held fan as claimed in claim 1, wherein: the lithium battery charger is characterized in that a charging interface (5-1) is connected to the circuit board (5), the charging interface (5-1) is clamped in the shell wall of the rear shell 7, and the charging interface (5-1) is electrically connected with the lithium battery (8) through a circuit on the circuit board (5).
7. A hand held fan as claimed in claim 1, wherein: the working principle is as follows: an air duct is formed by an inner cavity formed by buckling a rear shell (7), a front shell (2) and a flow guide cover (1), a lithium battery (8) provides electric energy for the motor (4) to work, the motor (4) drives an oblique flow supercharging impeller (6) to rotate, the oblique flow supercharging impeller (6) introduces air flow into the air duct from an air inlet, and cross mixed air flow is formed at a position close to an air outlet to be sprayed out at a high speed after the air flow is guided by a curved surface (2-1) in the front shell and a curved surface (1-1) according to the wall attachment benefit of fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258413.5A CN111322260A (en) | 2020-04-03 | 2020-04-03 | Handheld fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010258413.5A CN111322260A (en) | 2020-04-03 | 2020-04-03 | Handheld fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111322260A true CN111322260A (en) | 2020-06-23 |
Family
ID=71167975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010258413.5A Pending CN111322260A (en) | 2020-04-03 | 2020-04-03 | Handheld fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111322260A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780299A (en) * | 2020-07-13 | 2020-10-16 | 广东海洋大学 | Handheld fan with refrigeration effect |
| CN113638898A (en) * | 2021-09-22 | 2021-11-12 | 施超 | Fan with transparent shell and manufacturing method |
| CN114087218A (en) * | 2021-09-27 | 2022-02-25 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and handheld bladeless fan with same |
-
2020
- 2020-04-03 CN CN202010258413.5A patent/CN111322260A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111780299A (en) * | 2020-07-13 | 2020-10-16 | 广东海洋大学 | Handheld fan with refrigeration effect |
| CN113638898A (en) * | 2021-09-22 | 2021-11-12 | 施超 | Fan with transparent shell and manufacturing method |
| CN114087218A (en) * | 2021-09-27 | 2022-02-25 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and handheld bladeless fan with same |
| CN114183386A (en) * | 2021-09-27 | 2022-03-15 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and portable bladeless fan with same |
| CN114183385A (en) * | 2021-09-27 | 2022-03-15 | 深圳市几素科技有限公司 | Pressurized mixed flow generator and portable bladeless fan with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111322260A (en) | Handheld fan | |
| CN111441970B (en) | Hand-held bladeless fan | |
| CN111086611A (en) | Underwater propeller | |
| CN211901032U (en) | Handheld fan | |
| CN215927841U (en) | Hanging neck type fan and fan device for hanging neck type fan | |
| CN211648507U (en) | High-efficient dust catcher fan assembly and dust catcher thereof | |
| CN203285703U (en) | Heat-radiation fan | |
| CN214788109U (en) | Bladeless fan | |
| CN216742068U (en) | Mixed flow fan, pressurized mixed flow generator and portable bladeless fan with same | |
| CN215672912U (en) | Handheld bladeless fan | |
| CN216742071U (en) | Pressurized mixed flow generator and portable bladeless fan with same | |
| CN212272589U (en) | Portable blower | |
| CN210383011U (en) | High-efficient dryer | |
| CN214788122U (en) | Air inlet shell structure of handheld fan and handheld fan | |
| CN210371391U (en) | Rechargeable hidden fan type handheld fan | |
| CN220452286U (en) | Fan blade and fan | |
| CN216665972U (en) | Handheld or hanging neck fan capable of guiding wind | |
| CN112298470A (en) | Electric fin and water transport tool | |
| CN209126945U (en) | Underwater propeller | |
| CN217518882U (en) | Fan with cooling device | |
| CN202266513U (en) | Novel protective cover of electric fan | |
| CN216199154U (en) | Handheld bladeless fan | |
| CN212137331U (en) | Embedded type blowing charger baby | |
| CN212003645U (en) | Streamline fan frame fan capable of reducing wind resistance | |
| CN212027977U (en) | High-efficiency air guide device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |