CN216894972U

CN216894972U - Use centrifugal fan device on air purifier

Info

Publication number: CN216894972U
Application number: CN202123062559.1U
Authority: CN
Inventors: 罗先聪
Original assignee: Jesco Fresh Air System Zhongshan Co ltd
Current assignee: Jesco Fresh Air System Zhongshan Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-07-05
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to a centrifugal fan device applied to an air purifier, which is characterized by comprising a centrifugal wind wheel and an outer rotor motor, wherein an air inlet of the centrifugal wind wheel is positioned on one end face of the centrifugal wind wheel, a positioning sleeve is arranged on the middle part of the other end face of the centrifugal wind wheel, and an outer rotor shell of the outer rotor motor is embedded in an inner hole of the positioning sleeve. The centrifugal fan device adopts the outer rotor motor, and the positioning sleeve is arranged on the centrifugal wind wheel to insert the outer rotor shell of the outer rotor motor, so that the outer rotor motor and the centrifugal wind wheel can be assembled together stably and reliably, the rotation of the centrifugal wind wheel is ensured to be stable, the centrifugal wind wheel can be prevented from shaking, the noise can be reduced, the centrifugal wind wheel can be prevented from rubbing other parts, the service life of the centrifugal fan device can be prolonged, the reliability and the applicability of the centrifugal fan device are good, and the centrifugal fan device also has the advantages of simple structure, convenience in manufacture, convenience in assembly and the like.

Description

Use centrifugal fan device on air purifier

Technical Field

The utility model relates to the field of air purification equipment, in particular to a centrifugal fan applied to an air purifier.

Background

At present, most air purifiers are provided with centrifugal fans to drive air to flow so as to enable air to enter and exit the air purifying equipment. Most of the existing centrifugal fans are composed of a centrifugal wind wheel and an inner rotor motor, wherein a power output shaft of the inner rotor motor is embedded on the centrifugal wind wheel. Because the volume and the weight of the existing centrifugal wind wheel are both larger, the centrifugal wind wheel is connected with the motor only through a power output shaft, and the positioning stability of the centrifugal wind wheel is weaker. Like this in centrifugal fan working process, the condition that rocks easily appears in centrifugal wind wheel, this not only produces the noise easily, still easily leads to centrifugal wind wheel to rub other parts to air purification equipment to easily lead to centrifugal wind wheel's ageing rate to accelerate, and then easily lead to centrifugal fan's life shorter. Therefore, it is necessary to redesign the structure of the centrifugal fan.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and the defects, and provides a centrifugal fan device applied to an air purifier, wherein an outer rotor motor is adopted on the centrifugal fan device, and a positioning sleeve is arranged on a centrifugal wind wheel to be embedded in an outer rotor shell of the outer rotor motor, so that the outer rotor motor and the centrifugal wind wheel can be assembled together very stably and reliably, the rotation of the centrifugal wind wheel is very stable, the centrifugal wind wheel can be prevented from shaking, the noise can be reduced, the centrifugal wind wheel can be prevented from rubbing other parts, the service life of the centrifugal fan device can be prolonged, the reliability and the applicability of the centrifugal fan device are very good, and the centrifugal fan device also has the advantages of simple structure, convenience in manufacturing, convenience in assembly and the like.

The technical scheme of the utility model is realized as follows:

the centrifugal fan device is characterized by comprising a centrifugal wind wheel and an outer rotor motor, wherein an air inlet of the centrifugal wind wheel is positioned on one end face of the centrifugal wind wheel, a positioning sleeve is arranged in the middle of the other end face of the centrifugal wind wheel, and an outer rotor casing of the outer rotor motor is embedded in an inner hole of the positioning sleeve.

Preferably, the centrifugal wind wheel comprises a positioning disc, a positioning ring and a plurality of blades, wherein a wind guide cone frustum with a small outer part and a large inner part is arranged in the middle of one surface of the positioning disc, one end of each blade is connected to the circumferential surface of the wind guide cone frustum and uniformly arranged around the wind guide cone frustum, the positioning ring is arranged on the outer side of the positioning disc and connected with the outer end of each blade, an inner hole of the positioning ring forms an air inlet, and the positioning sleeve is arranged in the middle of the other surface of the positioning disc.

Preferably, the diameter of the inner hole of the positioning ring is gradually reduced in the direction away from the positioning disc, and the outer end of each blade is connected with the hole wall of the inner hole of the positioning ring.

Preferably, the minimum aperture of the inner hole of the positioning ring is larger than the outer diameter of the positioning disc, the inner side edge of one end of each blade is connected with the air guide cone frustum, and the outer side edge of the other end of each blade is connected with the hole wall of the inner hole of the positioning ring.

Preferably, the positioning disc is of an umbrella-shaped structure with an arched middle part, the air guide cone frustum is arranged on the arched surface of the positioning disc, and the positioning sleeve is arranged on the concave surface of the positioning disc.

Preferably, one end of each blade is also attached to the surface of the puck with one side of each blade overhanging the outside of the puck.

Preferably, an inner hole of the positioning sleeve penetrates through the positioning disc and then penetrates onto the air guide cone frustum.

Preferably, a reinforcing convex column is arranged in the middle of the outer end face of the outer rotor motor, at least three connecting convex columns are further arranged on the outer end face of the outer rotor motor, each connecting convex column is uniformly arranged around the reinforcing convex column, each connecting convex column is connected with the reinforcing convex column, and threaded holes are respectively formed in the outer end face of each connecting convex column.

Preferably, a simple ox horn socket is arranged on the outer end face of the outer rotor motor.

Preferably, the centrifugal wind wheel and the positioning sleeve are of an integrated plastic structure, and the outer rotor casing and the positioning sleeve are injected together.

The utility model has the beneficial effects that: in the centrifugal fan device, the upper positioning sleeve is arranged in the middle of the end face of the centrifugal wind wheel, the outer rotor motor is adopted, and the outer rotor shell of the outer rotor motor is embedded in the inner hole of the positioning sleeve. The purpose of enhancing the structural strength of the embedded part of the outer rotor casing can be achieved through the positioning sleeve, and the embedded part of the outer rotor casing is ensured to be positioned on the rotation central line of the centrifugal wind wheel. By adopting the outer rotor motor and embedding the outer rotor casing into the inner hole of the positioning sleeve, the connection quantity between the outer rotor motor and the centrifugal wind wheel can be ensured to be very large. This can guarantee that external rotor motor can be very stable, assemble together reliably with centrifugal wind wheel to guarantee that centrifugal wind wheel's rotation is very stable, from the condition that can avoid centrifugal wind wheel to appear rocking, this can not only the noise abatement, can also avoid centrifugal wind wheel to rub other parts to air purifier, and then can improve centrifugal fan device's life, this centrifugal fan device's reliability and suitability are all very good. Meanwhile, the integral structure of the centrifugal fan device is very simple, and the manufacture and the assembly are very convenient.

Drawings

Fig. 1 is a schematic perspective view of a centrifugal fan apparatus according to the present invention.

Fig. 2 is a schematic diagram of a disassembled structure of the centrifugal fan device of the present invention.

Fig. 3 is a schematic perspective view of a centrifugal wind wheel according to the present invention.

Fig. 4 is a schematic sectional view of a centrifugal wind wheel according to the present invention.

Fig. 5 is a second schematic sectional view of the centrifugal wind wheel according to the present invention.

Detailed Description

As shown in fig. 1 to 3, the centrifugal fan device applied to the air purifier according to the present invention includes a centrifugal wind wheel 1 and an outer rotor motor 2, wherein an air inlet 11 of the centrifugal wind wheel 1 is located on an end surface of one end of the centrifugal wind wheel 1, a positioning sleeve 12 is disposed on a middle portion of the other end surface of the centrifugal wind wheel 1, and an outer rotor housing 21 of the outer rotor motor 2 is embedded in an inner hole 121 of the positioning sleeve 12.

In the centrifugal fan device of the utility model, the upper positioning sleeve 12 is arranged on the middle part of the end surface of the centrifugal wind wheel 1, the outer rotor motor 2 is adopted, and the outer rotor casing 21 of the outer rotor motor 2 is embedded in the inner hole 121 of the positioning sleeve 12. This can play the purpose of reinforcing external rotor casing 21 embedding department structural strength through position sleeve 12 to guarantee that the embedding department of external rotor casing 21 is located centrifugal wind wheel 1's rotation central line. By adopting the outer rotor motor 2 and embedding the outer rotor casing 21 into the inner hole 121 of the positioning sleeve 12, the connection amount between the outer rotor motor 2 and the centrifugal wind wheel 1 can be ensured to be very large. This can guarantee that external rotor electric machine 2 can be very stable, assemble together reliably with centrifugal wind wheel 1 to guarantee that centrifugal wind wheel 1's rotation is very stable, from the condition that can avoid centrifugal wind wheel 1 to appear rocking, this can not only the noise abatement, can also avoid centrifugal wind wheel 1 to rub other parts to air purifier, and then can improve centrifugal fan device's life, this centrifugal fan device's reliability and suitability are all very good. Meanwhile, the integral structure of the centrifugal fan device is very simple, and the manufacture and the assembly are very convenient.

As shown in fig. 3 to 5, the centrifugal wind wheel 1 includes a positioning disk 13, a positioning ring 14, and a plurality of blades 15, wherein a small-outside and large-inside air guide truncated cone 16 is disposed on a middle portion of one surface of the positioning disk 13, one end of each blade 15 is connected to a circumferential surface of the air guide truncated cone 16, and each blade 15 is uniformly arranged around the air guide truncated cone 16, the positioning ring 14 is disposed on an outside of the positioning disk 13, and the positioning ring 14 is connected to an outer end of each blade 15, an inner hole of the positioning ring 14 forms an air inlet 11, and the positioning sleeve 12 is disposed on a middle portion of the other surface of the positioning disk 13. This centrifugal wind wheel 1's structure is very simple, and it can play very good wind-guiding effect to help improving centrifugal wind wheel 1 and going up the smooth and easy nature of air flow, and then help further improving the reliability of this centrifugal fan device.

As shown in fig. 3 and 5, the diameter of the inner hole of the positioning ring 14 is gradually reduced in a direction away from the positioning disc 13, and the outer end of each blade 15 is connected with the wall of the inner hole of the positioning ring 14. Therefore, a very good air guide structure can be formed on the hole wall of the inner hole of the positioning ring 14, so that the air can stably pass through the centrifugal wind wheel 1 conveniently, and the reliability of the centrifugal fan device is further improved.

As shown in fig. 3 and 5, the minimum aperture of the inner hole of the positioning ring 14 is larger than the outer diameter of the positioning disc 13, the inner side edge of one end of each blade 15 is connected with the air guide cone 16, and the outer side edge of the other end of each blade 15 is connected with the hole wall of the inner hole of the positioning ring 14. The centrifugal fan device can better suck and discharge air, thereby ensuring that the air flows more smoothly and further contributing to further improving the reliability of the centrifugal fan device.

As shown in fig. 3 to 5, the positioning plate 13 is an umbrella-shaped structure with a middle portion arched, the air guiding truncated cone 16 is disposed on the arched surface of the positioning plate 13, and the positioning sleeve 12 is disposed on the concave surface of the positioning plate 13. By providing puck 13 with an umbrella-like structure, one surface of puck 13 is domed and the other surface is concave. The air guide conical frustum 16 is arranged on the arched surface of the positioning disk 13, so that the surface of the positioning disk 13 can also participate in the guiding function, air can be ensured to pass through the centrifugal wind wheel 1 more smoothly, and the reliability and the stability of the centrifugal wind wheel 1 can be further improved. Through setting up location sleeve 12 on the sunken surface of positioning disk 13, location sleeve 12 will be close to centrifugal wind wheel 1's focus like this to enable outer rotor motor 2 to be close to centrifugal wind wheel 1's focus, this can guarantee that outer rotor motor 2 drives centrifugal wind wheel 1 more steadily, thereby helps improving centrifugal wind wheel 1 pivoted stability and reliability, this reliability and the stability that also helps further improving this centrifugal wind wheel 1.

As shown in fig. 3 to 5, one end of each blade 15 is also attached to the surface of the positioning plate 13, and one side of each blade 15 is suspended outside the positioning plate 13. Therefore, the stability and the reliability of the installation and the positioning of the blades 15 can be enhanced, and the air guide performance can be enhanced, so that the reliability of the centrifugal fan device is further improved.

As shown in fig. 5, the inner hole 121 of the positioning sleeve 12 penetrates through the positioning plate 13 and then penetrates onto the air guiding truncated cone 16. Therefore, the outer rotor motor 2 can be embedded on the wind guide conical frustum 16, so that the outer rotor motor 2 can be closer to the gravity center of the centrifugal wind wheel 1, the outer rotor motor 2 can drive the centrifugal wind wheel 1 more stably, the rotation stability and reliability of the centrifugal wind wheel 1 can be further improved, and the reliability and stability of the centrifugal wind wheel 1 can be further improved.

As shown in fig. 2, a reinforcing convex column 22 is disposed in the middle of the outer end surface of the outer rotor motor 2, at least three connecting convex columns 23 are further disposed on the outer end surface of the outer rotor motor 2, each connecting convex column 23 is uniformly arranged around the reinforcing convex column 22, each connecting convex column 23 is connected with the reinforcing convex column 22, and a threaded hole 231 is respectively disposed on the outer end surface of each connecting convex column 23. Therefore, the installation and fixation of the outer rotor motor 2 can be facilitated, and the installation and fixation can be guaranteed to be very reliable, so that the reliability and the applicability of the centrifugal fan device can be further improved.

As shown in fig. 2, a simple ox horn socket 24 is disposed on an outer end surface of the outer rotor motor 2, and the simple ox horn socket 24 is electrically connected to the outer rotor motor 2. Therefore, the outer rotor motor 2 can be conveniently and stably connected with an external power supply, the outer rotor motor 2 can be conveniently detached and maintained, and the reliability and the applicability of the centrifugal fan device can be further improved.

As shown in fig. 5, the centrifugal wind wheel 1 and the positioning sleeve 12 are of an integral plastic structure, and the outer rotor casing 21 and the positioning sleeve 12 are injection molded together. Therefore, the centrifugal wind wheel 1 can be guaranteed to have high structural strength, and the reliability and the stability of the connection between the outer rotor casing 21 and the positioning sleeve 12 can be enhanced, so that the reliability of the centrifugal fan device is further improved.

Claims

1. The utility model provides an use centrifugal fan device on air purifier which characterized in that: the centrifugal wind wheel motor comprises a centrifugal wind wheel (1) and an outer rotor motor (2), wherein an air inlet (11) of the centrifugal wind wheel (1) is located on one end face of the centrifugal wind wheel (1), a positioning sleeve (12) is arranged in the middle of the other end face of the centrifugal wind wheel (1), and an outer rotor casing (21) of the outer rotor motor (2) is embedded in an inner hole (121) of the positioning sleeve (12).

2. The centrifugal fan device applied to the air cleaner as claimed in claim 1, wherein: centrifugal wind wheel (1) is including positioning disk (13), holding ring (14), a plurality of blade (15), be provided with outer little, big-inside wind-guiding circular truncated cone (16) on the middle part on positioning disk (13) one surface, the one end of each blade (15) is connected on the circumference surface of wind-guiding circular truncated cone (16), and make each blade (15) evenly around wind-guiding circular truncated cone (16) and arrange, the outside at positioning disk (13) is arranged in holding ring (14), and make holding ring (14) meet with the outer end of each blade (15), the hole of holding ring (14) has constituted air intake (11), position sleeve (12) set up on the middle part of positioning disk (13) another surface.

3. The centrifugal fan device applied to the air cleaner as claimed in claim 2, wherein: the diameter of the inner hole of the positioning ring (14) is gradually reduced along the direction far away from the positioning disc (13), and the outer end of each blade (15) is connected with the hole wall of the inner hole of the positioning ring (14).

4. The centrifugal fan device applied to the air cleaner as claimed in claim 3, wherein: the minimum aperture of the inner hole of the positioning ring (14) is larger than the outer diameter of the positioning disc (13), the inner side edge of one end of each blade (15) is connected with the air guide cone frustum (16), and the outer side edge of the other end of each blade (15) is connected with the hole wall of the inner hole of the positioning ring (14).

5. The centrifugal fan device applied to the air cleaner as claimed in claim 2, wherein: the positioning disc (13) is of an umbrella-shaped structure with a middle part arched, the air guide cone frustum (16) is arranged on the arched surface of the positioning disc (13), and the positioning sleeve (12) is arranged on the sunken surface of the positioning disc (13).

6. The centrifugal fan device applied to the air cleaner as claimed in claim 2, wherein: one end of each blade (15) is also connected to the surface of the positioning disc (13), and one side of each blade (15) is suspended outside the positioning disc (13).

7. The centrifugal fan device applied to the air purifier according to any one of claims 1 to 6, wherein: an inner hole (121) of the positioning sleeve (12) penetrates through the positioning disc (13) and then penetrates onto the air guide cone frustum (16).

8. The centrifugal fan device applied to the air cleaner as claimed in claim 1, wherein: the middle of the outer end face of the outer rotor motor (2) is provided with a reinforcing convex column (22), the outer end face of the outer rotor motor (2) is further provided with at least three connecting convex columns (23), the connecting convex columns (23) are uniformly arranged around the reinforcing convex column (22), the connecting convex columns (23) are connected with the reinforcing convex column (22), and the outer end face of each connecting convex column (23) is provided with a threaded hole (231).

9. The centrifugal fan device applied to the air cleaner as claimed in claim 1, wherein: and a simple ox horn socket (24) is arranged on the outer end face of the outer rotor motor (2).

10. The centrifugal fan device applied to the air cleaner as claimed in claim 1, wherein: the centrifugal wind wheel (1) and the positioning sleeve (12) are of an integrated plastic structure, and the outer rotor casing (21) and the positioning sleeve (12) are injected together.