CN215333506U

CN215333506U - Outer rotor fan capable of being folded and stored

Info

Publication number: CN215333506U
Application number: CN202120549410.7U
Authority: CN
Inventors: 梁盛权
Original assignee: Guangdong Chubil Industry Co ltd
Current assignee: Guangdong Chubil Industry Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-12-28
Anticipated expiration: 2031-03-17

Abstract

A foldable and storable outer rotor fan comprises a base, wherein a vertical rod is arranged on the base, a main machine is installed at the top of the vertical rod and connected with fan blades, and a protective cover is also installed at the top of the vertical rod to cover the main machine and the fan blades in the protective cover; the method is characterized in that: the main machine comprises a motor stator coil which is sleeved on a mounting shaft positioned at the top of the vertical rod; the fan blades comprise a rotating seat and a plurality of first fan blades arranged on the excircle of the rotating seat, the blade tips of the first fan blades are connected into a whole through a connecting ring, and a plurality of second fan blades are arranged on the outer circumference of the connecting ring; the circle center of the rotating seat is provided with a rotating shaft which is inserted in the mounting shaft, the rotating seat is also provided with a magnetic ring, and after the fan blades are mounted, the magnetic ring is sleeved on the periphery of a stator coil of the motor. The utility model has the beneficial effects that: the magnetic ring is arranged on the fan blade, and the magnetic action of the financial spirit between the magnetic ring and the stator coil of the motor can provide certain assistance for the fan blade, so that the operation efficiency of the fan blade is improved.

Description

Outer rotor fan capable of being folded and stored

Technical Field

The utility model relates to a fan, in particular to a foldable and storable outer rotor fan.

Background

The fan is a tool for taking the cool by the fresh wind in summer, and the built-in fan blades are electrically driven to be converted into the natural wind so as to achieve the effect of cooling. Generally, the air outlet of the fan belongs to mechanical wind, and the wind feeling is strong when the fan runs at a high speed, so that the fan has certain influence on the weak, the old and the infants. The natural wind is soft and comfortable, does not hurt people, and is widely popular with consumers.

The existing fan is mainly divided into a single-layer fan and a double-layer fan, wherein double-layer fan blades which are arranged in the double-layer fan in a staggered mode are driven by two motors to rotate in the same direction and at different speeds, so that the air quantity is more sufficient and soft, and the requirement of a user on natural wind is met. However, the double-layer fan has high noise generated in the using process, low energy consumption utilization rate and incomplete mixing of wind.

Meanwhile, most of the existing fans are detachable supporting structures, and certain skills are needed for mounting and detaching at the later stage, so that the use of ordinary users is inconvenient, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the foldable and storable outer rotor fan which is simple in structure, low in production cost, convenient for users to fold quickly, soft in wind power and low in working noise.

The object of the utility model is achieved in the following way: a foldable and storable outer rotor fan comprises a base, wherein a vertical rod is arranged on the base, a main machine is installed at the top of the vertical rod and connected with fan blades, and a protective cover is also installed at the top of the vertical rod to cover the main machine and the fan blades in the protective cover; the method is characterized in that: the main machine comprises a motor stator coil which is sleeved on a mounting shaft positioned at the top of the vertical rod; the fan blades comprise a rotating seat and a plurality of first fan blades arranged on the excircle of the rotating seat, the blade tips of the first fan blades are connected into a whole through a connecting ring, and a plurality of second fan blades are arranged on the outer circumference of the connecting ring; the circle center of the rotating seat is provided with a rotating shaft which is inserted in the mounting shaft, the rotating seat is also provided with a magnetic ring, and after the fan blades are mounted, the magnetic ring is sleeved on the periphery of a stator coil of the motor.

The rotating base is in a shape of a cylinder with a bottom, a plurality of positioning columns are arranged on the inner wall of the rotating base, and the outer circumference of the magnetic ring is fixed on the positioning columns in a buckling mode.

The second fan blade is arranged between the two first fan blades.

The installation axle inside lining be provided with the copper pipe, the pivot cartridge is in this copper pipe.

The rotating shaft is sleeved with a positioning ring, and the positioning ring is pressed against two ends of the copper pipe.

The base on be provided with down articulated seat, the pole setting bottom is articulated to be installed under this on articulated seat, the pole setting top be provided with articulated seat, the protection casing is articulated to be installed on this articulated seat.

The back of protection casing be provided with the storage tank, accomodate in this storage tank after the pole setting is folding.

The utility model has the beneficial effects that: 1. simple structure, low production cost and improved market competitiveness. 2. The structure of two fan blades in the present case except can reaching the wind-force of major diameter fan blade under the condition that the fan blade diameter reduces, lets the structure compacter, can also make the air-out more even, avoids general fan air-out strong and weak uneven distribution, more is close to natural wind. 3. The magnetic ring is arranged on the fan blade, and the magnetic action of the financial spirit between the magnetic ring and the stator coil of the motor can provide certain assistance for the fan blade, so that the operation efficiency of the fan blade is improved. 4. The two ends of the vertical rod are hinged with the base and the protective cover through the hinge seats, so that the base and the protective cover can be overlapped in a folding mode, the packaging volume of the vertical rod is reduced, and the vertical rod is convenient to assemble for a user.

Drawings

FIG. 1 is a diagram illustrating the assembly effect of the present invention.

Fig. 2 is an assembly view of the structure of the present invention.

Fig. 3 is a structural sectional view of the present invention.

FIG. 4 is an enlarged view of the portion A of FIG. 4 in the present invention.

FIG. 5 is a schematic view of a fan blade structure according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. A foldable and storable outer rotor fan comprises a base 1, wherein a vertical rod 2 is arranged on the base 1, a main machine 3 is installed at the top of the vertical rod 2, the main machine 3 is connected with fan blades, and a protective cover 4 is also installed at the top of the vertical rod 2 to cover the main machine 3 and the fan blades in the protective cover; the method is characterized in that: the main machine 3 comprises a motor stator coil 31, and the motor stator coil 31 is sleeved on a mounting shaft 32 positioned at the top of the vertical rod 2; the fan blades comprise a rotating base 9 and a plurality of first fan blades 4 arranged on the outer circle of the rotating base, the blade tips of the first fan blades 4 are connected into a whole through a connecting ring 5, and a plurality of second fan blades 6 are arranged on the outer circumference of the connecting ring 5; the circle center of the rotating seat 9 is provided with a rotating shaft 7, the rotating shaft 7 is inserted into the mounting shaft 32, the rotating seat 9 is also provided with a magnetic ring 8, and after the fan blades are mounted, the magnetic ring 8 is sleeved on the periphery of the motor stator coil 31.

The rotary seat 9 is in a shape of a cylinder with a bottom, a plurality of positioning columns 91 are arranged on the inner wall of the rotary seat, and the outer circumference of the magnetic ring 8 is fixed on the positioning columns 91 in a buckling mode.

The second fan blade 6 is arranged between the two first fan blades 4.

The mounting shaft 32 is lined with a copper pipe 33, and the rotating shaft 7 is inserted in the copper pipe 33.

The rotating shaft 7 is sleeved with a positioning ring 34, and the positioning ring 34 is pressed against two ends of the copper pipe 33.

Base 1 on be provided with down articulated seat 11, the pole setting bottom is articulated to be installed under this on articulated seat 11, the pole setting top be provided with articulated seat 12, the protection casing is articulated to be installed on this articulated seat 12.

The back of protection casing be provided with storage tank 13, accomodate in this storage tank 13 after the pole setting is folded.

The working principle is as follows: when packing, utilize the articulated seat of first articulated seat and the articulated seat of second at pole setting both ends, can be folded base and protection casing to reduce the height of this fan, in order to improve packaging space's utilization ratio, reduce the packing volume. When the user purchases the use, only need lift the protection casing, with the pole setting vertical back of putting to the angle of adjustment protection casing can use, therefore the user need not to assemble it, thereby made things convenient for user's use.

Further: the fan flabellum in the present case adopts two fan blade designs, and the structure of two fan blades except can reaching the wind-force of major diameter fan blade under the condition that the fan blade diameter reduces, lets the structure compacter outside, can also make the air-out more even, avoids general fan air-out to be strong and weak to distribute unevenly, more is close to natural wind.

Further: in the present case, the motor adopts the outer rotor structure, installs rotatory magnetic ring on the flabellum, during the installation flabellum, directly with it withhold on motor stator can to avoid fan secondary operation, reduced process flow. Meanwhile, a vibration noise isolation space is formed between the outer surface of the motor stator and the magnetic ring to prevent the fan and the permanent magnet assembly from directly contacting each other, so that vibration or high-frequency noise can be reduced. The fan is more stable and silent in operation, so that the fan can be widely popularized and used.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. A foldable and storable outer rotor fan comprises a base (1), wherein a vertical rod (2) is arranged on the base (1), a main machine (3) is installed at the top of the vertical rod (2), fan blades are connected with the main machine (3), and a protective cover (4) is further installed at the top of the vertical rod (2) to cover the main machine (3) and the fan blades in the protective cover; the method is characterized in that: the main machine (3) comprises a motor stator coil (31), and the motor stator coil (31) is sleeved on a mounting shaft (32) positioned at the top of the vertical rod (2); the fan blades comprise a rotating base (9) and a plurality of first fan blades (4) arranged on the outer circle of the rotating base, the blade tips of the first fan blades (4) are connected into a whole through a connecting ring (5), and a plurality of second fan blades (6) are arranged on the outer circumference of the connecting ring (5); the fan blade mounting structure is characterized in that a rotating shaft (7) is arranged on the circle center of the rotating seat (9), the rotating shaft (7) is inserted into the mounting shaft (32), a magnetic ring (8) is further arranged on the rotating seat (9), and after the fan blades are mounted, the magnetic ring (8) is sleeved on the periphery of a motor stator coil (31).

2. The external rotor fan capable of being folded and stored according to claim 1, wherein: the rotating seat (9) is in a shape of a cylinder with a bottom, a plurality of positioning columns (91) are arranged on the inner wall of the rotating seat, and the outer circumference of the magnetic ring (8) is fixed on the positioning columns (91) in a buckling mode.

3. The external rotor fan capable of being folded and stored according to claim 1, wherein: the second fan blade (6) is arranged between the two first fan blades (4).

4. The external rotor fan capable of being folded and stored according to claim 1, wherein: the installation axle (32) inside lining be provided with copper pipe (33), pivot (7) cartridge is in this copper pipe (33).

5. The external rotor fan capable of being folded and stored according to claim 4, wherein: the rotating shaft (7) is sleeved with a positioning ring (34), and the positioning ring (34) is pressed against two ends of the copper pipe (33).

6. The external rotor fan capable of being folded and stored according to claim 1, wherein: base (1) on be provided with down articulated seat (11), the pole setting bottom is articulated to be installed under this on articulated seat (11), the pole setting top be provided with articulated seat (12), the protection casing is articulated to be installed on this articulated seat (12).

7. The external rotor fan capable of being folded and stored according to claim 1, wherein: the back of the protective cover is provided with a containing groove (13), and the vertical rod is contained in the containing groove (13) after being folded.