WO2019232944A1

WO2019232944A1 - Centrifugal fan assembly and centrifugal fan employing the same

Info

Publication number: WO2019232944A1
Application number: PCT/CN2018/103760
Authority: WO
Inventors: 王鸿彬
Original assignee: 中山大洋电机股份有限公司
Priority date: 2018-06-05
Filing date: 2018-09-03
Publication date: 2019-12-12
Also published as: CN208634070U

Abstract

A centrifugal fan assembly and a centrifugal fan employing the same. The centrifugal fan assembly comprises an outer rotor motor (1), a fan wheel (2), a mounting support, a bearing seat (4), and an air guiding ring. The mounting support comprises a first mounting support (31) and a second mounting support (32). The air guiding ring comprises a first air guiding ring (81) and a second air guiding ring (82). One end of the first mounting support (31) is connected to the bearing seat (4), and the other end is connected to the first air guiding ring (81). A bearing (41) is provided in the bearing seat (4). A rotating shaft (11) extends from the front end of the outer rotor motor (1), and the bearing (41) supports the rotating shaft (11). One end of the second mounting support (32) is connected to a base (12) at a rear end of the outer rotor motor (1), and the other end is connected to the second air guiding ring (82). The outer rotor motor (1) is located in a cavity of the fan wheel (2), and the fan wheel (2) is mounted on the outer rotor motor (1). The first mounting support (31) and the first air guiding ring (81) are integral structures, or/and the second mounting support (32) and the second air guiding ring (82) are integral structures. The invention effectively ensures the coaxiality of the fan wheel and the air guiding ring, thereby improving performance of a fan and reducing noise of the fan. In addition, the invention reduces parts, is easy to mount, and effectively improves mounting precision.

Description

Centrifugal fan component and centrifugal fan using the same

Technical field:

The utility model relates to a centrifugal fan component and a centrifugal fan using the same.

Background technique:

An existing centrifugal fan assembly includes an outer rotor motor, a wind wheel, a mounting bracket, a bearing seat, and an air guide ring. The installation support includes a first installation support and a second installation support. The air guide includes a first air guide. Ring and second air deflector, one end of the first mounting bracket is connected to the bearing seat, and the other end is connected to the first air deflector, and a bearing is arranged in the bearing seat. The front end of the outer rotor motor protrudes from the rotating shaft, and the bearing supports the rotating shaft. One end of the mounting bracket is connected to the base of the rear end of the outer rotor motor, and the other end is connected to the second air guide ring. The first air guide ring and the second air guide ring are respectively installed on the fan casing, and the outer rotor motor is located in the cavity of the wind wheel. Here, the wind wheel is installed on the outer rotor motor. The existing first mounting bracket and the first air guide ring are not an integrated structure, and the second installation bracket and the second air guide ring are not an integrated structure. The coaxiality of the air deflector or the second air deflector affects fan performance and causes fan noise.

Utility model content:

The purpose of the utility model is to provide a centrifugal fan assembly and a centrifugal fan using the same. By installing the mounting bracket and the air guide ring into an integrated structure, the coaxiality of the wind wheel and the air guide ring is guaranteed to improve the performance of the fan and solve the problem Problems with fan noise.

A centrifugal fan assembly includes an outer rotor motor, a wind wheel, a mounting bracket, a bearing seat, and an air guide ring. The installation support includes a first installation support and a second installation support. The air guide includes a first air guide. And the second air guide ring, one end of the first mounting bracket is connected to the bearing housing, and the other end is connected to the first air guide ring. A bearing is provided in the bearing housing, and the front end of the outer rotor motor protrudes from the rotating shaft, and the bearing supports the rotating shaft. One end of the bracket is connected to the base of the rear end of the outer rotor motor, and the other end is connected to the second air guide ring. The first air guide ring and the second air guide ring are respectively installed on the fan casing, and the outer rotor motor is located in the cavity of the wind wheel. The wind wheel is installed on the outer rotor motor, and the first mounting bracket and the first air guide ring are an integrated structure or the second mounting bracket and the second air guide ring are an integrated structure.

The first mounting bracket and the first air deflector are an integrated structure, and the second mounting bracket and the second air deflector are an integrated structure.

The first air deflector, the first mounting bracket, and the bearing seat are integrated structures.

The second mounting bracket is connected to a base at the rear end of the outer rotor motor through a mounting plate, and the second air guide ring, the second mounting bracket, and the mounting plate are an integrated structure.

The above-mentioned first air deflector, the first mounting bracket and the bearing seat are integrally die-casted by using aluminum or integrally injection-molded by using plastic.

The second air deflector, the second mounting bracket, and the mounting plate are integrally die-casted by using aluminum or integrally injection-molded by using plastic.

A damping ring is provided between the mounting plate and the base.

A damping pad is provided between the inner wall of the bearing seat and the bearing.

A middle plate is provided in the middle of the wind wheel, and the wind wheel is installed on the outer rotor motor through the middle plate and the mounting flange in cooperation.

The above-mentioned shock-absorbing pad is made of rubber.

A centrifugal fan includes a fan casing and a centrifugal fan component installed on the fan casing. The centrifugal fan component is the centrifugal fan component described above, and a first air guide ring and a second air guide ring are respectively installed on the fan housing. on.

Compared with the prior art, the utility model has the following effects:

1) A centrifugal fan assembly includes an outer rotor motor, a wind wheel, a mounting bracket, a bearing seat and an air guide ring, the installation support includes a first installation support and a second installation support, and the air guide includes a first guide The air coil and the second air deflector, one end of the first mounting bracket is connected to the bearing seat, and the other end is connected to the first air deflector. The bearing seat is provided with a bearing. The front end of the outer rotor motor protrudes from the rotating shaft, and the bearing supports the rotating shaft. One end of the two mounting brackets is connected to the base of the rear end of the outer rotor motor, and the other end is connected to the second air guide ring. The first air guide ring and the second air guide ring are respectively installed on the fan casing, and the outer rotor motor is located in the space of the wind wheel. In the cavity, the wind wheel is installed on the outer rotor motor. The first mounting bracket and the first air guide ring are an integrated structure, or the second mounting bracket and the second air guide ring are an integrated structure, which can effectively ensure the wind wheel. The coaxiality with the air guide ring, thereby improving the performance of the fan, thereby improving the noise of the fan, reducing the number of parts, simple installation, and effectively improving the installation accuracy.

2) The first air guide ring, the first mounting bracket and the bearing seat are an integrated structure. The coaxiality between the wind wheel and the first air guide ring is the best, the fan performance is better, the fan noise improvement effect is better, and there are fewer parts. , Easy to install and effectively improve the installation accuracy.

3) The second mounting bracket is connected to the base at the rear end of the outer rotor motor through a mounting plate. The second air guide ring, the second mounting bracket and the mounting plate are an integrated structure, and the coaxiality between the wind wheel and the second air guide ring is the most Good, the fan performance is better, the fan noise is better, and there are fewer parts, the installation is simple, and the installation accuracy is effectively improved.

4) The first air deflector, the first mounting bracket and the bearing seat are integrally die-casted from aluminum or integrally injection-molded from plastic. The manufacturing process is simple and the cost is low.

5) A damping ring is installed between the mounting plate and the base. The outer rotor motor drives the wind wheel to generate vibration and noise. The damping ring can buffer the vibration and noise generated by the motor, thereby avoiding the vibration and noise of the whole machine.

6) A damping pad is arranged between the inner wall of the bearing seat and the bearing to further buffer the vibration and noise generated by the motor and avoid causing the whole machine to generate vibration and noise.

7) A middle plate is provided in the middle of the wind wheel, and the wind wheel is installed on the outer rotor motor through the middle plate and the mounting flange, which is convenient and firm to install.

8) A centrifugal fan adopts the centrifugal fan assembly according to the utility model, which improves the performance of the fan and improves the noise of the whole machine.

Brief description of the drawings:

FIG. 1 is an exploded view of a centrifugal fan assembly according to a first embodiment of the present invention;

2 is a front view of a centrifugal fan assembly according to a first embodiment of the present invention;

3 is a schematic cross-sectional view of a centrifugal fan assembly according to a first embodiment of the present invention;

4 is an exploded view of some parts of the centrifugal fan assembly provided by the first embodiment of the present invention;

5 is a perspective view of some parts of a centrifugal fan assembly provided by the first embodiment of the present invention;

6 is an exploded view of a centrifugal fan assembly applied to an air conditioner according to a second embodiment of the present invention;

FIG. 7 is a schematic cross-sectional view of a centrifugal fan assembly according to a second embodiment of the present invention applied to an air conditioner.

Detailed ways:

The present invention will be further described in detail through specific embodiments and the accompanying drawings.

Embodiment one:

As shown in FIG. 1 to FIG. 5, this embodiment provides a centrifugal fan assembly including an outer rotor motor 1, a wind wheel 2, a mounting bracket, a bearing seat 4, and an air guide ring. The mounting bracket includes a first installation A bracket 31 and a second mounting bracket 32. The air guiding ring includes a first air guiding ring 81 and a second air guiding ring 82. One end of the first mounting bracket 31 is connected to the bearing seat 4 and the other end is connected to the first air guiding ring 81. The bearing seat 4 is provided with a bearing 41. The front end of the outer rotor motor 1 protrudes from the rotation shaft 11. The bearing 41 supports the rotation shaft 11. One end of the second mounting bracket 32 is connected to the base 12 at the rear end of the outer rotor motor 1, and the other end is connected to the second Air guide ring 82, the outer rotor motor 1 is located in the cavity of the wind wheel 2, the wind wheel 2 is installed on the outer rotor motor 1, the first mounting bracket 31 and the first air guide ring 81 are an integrated structure or The second mounting bracket 32 and the second air guide ring 82 are an integrated structure.

Preferably, the first mounting bracket 31 and the first air guide ring 81 are an integrated structure, and the second mounting bracket 32 and the second air guide ring 82 are an integrated structure.

Preferably, the first air guide ring 81, the first mounting bracket 31, and the bearing seat 4 are integrated structures.

Preferably, the second mounting bracket 32 is connected to the base 12 at the rear end of the outer rotor motor 1 through a mounting plate 5, and the second air guide ring 82, the second mounting bracket 32 and the mounting plate 5 are an integrated structure.

Preferably, the first air guide ring 81, the first mounting bracket 31, and the bearing seat 4 are integrally die-casted from aluminum or integrally injection-molded from plastic.

Preferably, the second air guide ring 82, the second mounting bracket 32, and the mounting plate 5 are integrally die-casted from aluminum or integrally injection-molded from plastic.

Preferably, a damping ring 6 is provided between the mounting plate 5 and the base 12.

Preferably, a damping pad 7 is provided between the inner wall of the bearing seat 4 and the bearing 41.

Preferably, a middle plate 21 is provided in the middle of the wind wheel 2, and the wind wheel 2 is mounted on the outer rotor motor 1 through the middle plate 21 in cooperation with the mounting flange 9.

Preferably, the damping pad 7 is made of rubber.

Embodiment two:

As shown in FIG. 1 to FIG. 7, a centrifugal fan includes a fan casing 100 and a centrifugal fan assembly mounted on the fan casing 100. The centrifugal fan assembly is the centrifugal fan assembly according to the first embodiment. The air ring 81 and the second air guide ring 82 are respectively mounted on the fan casing 100. The fan casing 100 may be an RV air conditioner as shown in FIG. 6 and FIG. 7, or may be a volute casing, which does not specifically limit the fan casing.

The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are all All equivalent replacement methods are included in the protection scope of the present invention _.

Claims

A centrifugal fan assembly includes an outer rotor motor (1), a wind wheel (2), a mounting bracket, a bearing seat (4), and an air guide ring. The mounting bracket includes a first mounting bracket (31) and a second mounting bracket. (32) The air deflector includes a first air deflector (81) and a second air deflector (82). One end of the first mounting bracket (31) is connected to the bearing seat (4), and the other end is connected to the first air deflector. The air ring (81), the bearing seat (4) is provided with a bearing (41), the front end of the outer rotor motor (1) protrudes from the rotating shaft (11), the bearing (41) supports the rotating shaft (11), and the second mounting bracket ( One end of 32) is connected to the base (12) at the rear end of the outer rotor motor (1), and the other end is connected to the second air guide ring (82). The outer rotor motor (1) is located in the cavity of the wind wheel (2). The wheel (2) is mounted on the outer rotor motor (1), and is characterized in that the first mounting bracket (31) and the first air guide ring (81) are an integrated structure or the second mounting bracket (32) It is an integrated structure with the second air guide ring (82).
The centrifugal fan assembly according to claim 1, characterized in that the first air guide ring (81), the first mounting bracket (31) and the bearing seat (4) are an integrated structure.
The centrifugal fan assembly according to claim 1, wherein the second mounting bracket (32) is connected to the base (12) through a mounting plate (5), and the second air guide ring (82), The second mounting bracket (32) and the mounting plate (5) are an integrated structure.
The centrifugal fan assembly according to claim 2, characterized in that the first air guide ring (81), the first mounting bracket (31) and the bearing seat (4) are integrally die-cast or formed by using aluminum. Plastic injection molding.
The centrifugal fan assembly according to claim 3, wherein the second air guide ring (82), the second mounting bracket (32), and the mounting plate (5) are integrally die-cast or formed by using aluminum. Plastic one-piece injection molding.
A centrifugal fan assembly according to any one of claims 1 to 5, characterized in that a damping ring (6) is provided between the mounting plate (5) and the base (12).
A centrifugal fan assembly according to any one of claims 1 to 5, characterized in that a damping pad (7) is provided between the inner wall of the bearing seat (4) and the bearing (41).
A centrifugal fan assembly according to any one of claims 1 to 5, characterized in that a middle plate (21) is provided in the middle of the wind wheel (2), and the wind wheel (2) passes through the middle plate (21) Installed on the outer rotor motor (1) in cooperation with the mounting flange (9).
A centrifugal fan assembly according to claim 7, characterized in that said shock absorbing pad (7) is made of rubber.
A centrifugal fan includes a fan casing (100) and a centrifugal fan assembly mounted on the fan casing (100), wherein the centrifugal fan assembly is a centrifugal fan according to any one of claims 1 to 9. The fan assembly, the first air guide ring (81) and the second air guide ring (82) are respectively installed on the fan casing (100).