CN210225093U

CN210225093U - Rotor subassembly, motor and ceiling fan

Info

Publication number: CN210225093U
Application number: CN201921702570.XU
Authority: CN
Inventors: Inventor Has Waived The Right To Be Mentioned The; 不公告发明人
Original assignee: Zhongshan Dejue Electrical Appliances Co ltd
Current assignee: Zhongshan Dejue Electrical Appliances Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-03-31
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a rotor subassembly, motor and ceiling fan, this rotor subassembly includes: the magnetic component comprises a plastic support and an even number of magnets, the plastic support is mounted in the shell component, and the even number of magnets are circumferentially distributed on the plastic support and integrally formed with the plastic support in an injection molding mode to form a whole. The rotor subassembly of above structure utilizes the plastic support to fix the magnet of even number piece, and the location of having guaranteed magnet is accurate with the integrative injection moulding of plastic support for all magnets, has reduced the installation procedure of magnet to this rotor subassembly's spare part quantity is less, and the production simple installation, manufacturing cost is lower. The motor and the ceiling fan both adopt the rotor assembly, so that the production, installation and manufacturing efficiency is greatly improved, and the stability of the product quality is guaranteed.

Description

Rotor subassembly, motor and ceiling fan

Technical Field

The utility model relates to a rotor subassembly, motor and ceiling fan.

Background

The general motor comprises a stator assembly and a rotor assembly, and the structure of the motor is different according to different use conditions. The stator assembly of the motor for the ceiling fan comprises a stator shaft, the stator assembly is fixedly connected to a ceiling through the stator shaft, the rotor assembly comprises a shell assembly and a permanent magnet arranged in the shell assembly, and the shell assembly and the permanent magnet are arranged on the stator shaft in a rotating mode as a whole.

At present, the mounting structure of the permanent magnet of the rotor assembly of the motor for the ceiling fan is complex, the permanent magnet is difficult to position in the mounting process, the positioning deviation is easy to occur, the performance stability of the motor is influenced, the assembly and production are troublesome, the mounting process is time-consuming and labor-consuming, and the manufacturing cost is also high due to the complex structure.

In addition, the structure for positioning and installing the permanent magnet on the general rotor assembly is easy to extrude the permanent magnet, so that the permanent magnet is broken; secondly, the permanent magnet and the shell assembly are in rigid contact, so that the permanent magnet is broken.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a rotor assembly formed by integrating a magnet and a plastic bracket, the magnet of the rotor assembly is accurately positioned, the number of parts of the rotor assembly is less, the production and the installation are simple and convenient, and the manufacturing cost is lower; a second object of the present invention is to provide a motor using the rotor assembly; the third purpose is to provide a ceiling fan applying the motor.

The utility model provides a technical scheme that its technical problem adopted is:

a rotor assembly, comprising: the magnetic component comprises a plastic support and an even number of magnets, the plastic support is mounted in the shell component, and the even number of magnets are circumferentially distributed on the plastic support and integrally formed with the plastic support in an injection molding mode to form a whole.

Preferably, the plastic support comprises a circular ring part, a plurality of vertical ribs are uniformly distributed on an inner ring of the circular ring part, an accommodating space for accommodating one magnet is formed between every two adjacent vertical ribs, and the accommodating space can partially or completely wrap two side faces of the magnet corresponding to the accommodating space.

Preferably, the outer ring of the circular ring part is integrally formed with at least two supporting parts, and the supporting parts are abutted against the side surface inside the shell component.

In some embodiments of the utility model, the upper end of plastic support upwards bulge in the up end of magnet, the upper end of plastic support and the interior upper portion looks butt of casing subassembly, form first high clearance between the up end of magnet and the upper surface of the inside of casing subassembly, the lower extreme of plastic support downwards bulge in the lower terminal surface of magnet, the lower part looks butt in the lower extreme of plastic support and the casing subassembly, form second high clearance between the lower terminal surface of the inside of magnet and casing subassembly. Thereby avoiding the breakage of the magnet caused by the rigid contact between the upper and lower ends of the magnet and the shell component.

In some embodiments of the present invention, the upper end surface of the magnet is flush with or protrudes upward from the upper end of the plastic bracket, a first buffer layer is disposed between the upper end surface of the magnet and the upper surface of the inside of the housing assembly, the lower end surface of the magnet is flush with or protrudes downward from the lower end of the plastic bracket, and a second buffer layer is disposed between the lower end surface of the magnet and the lower surface of the inside of the housing assembly. The first buffer layer can avoid taking place rigid contact between the up end of magnet and the casing subassembly, and the second buffer layer can avoid taking place rigid contact between the lower terminal surface of magnet and the casing subassembly, prevents that magnet from breaking, ensures the normal use of rotor subassembly.

As a further improvement of the above rotor assembly, the first buffer layer is formed on the plastic support by plastic glue injection and separates the upper end surface of the magnet from the housing assembly, and the second buffer layer is formed on the plastic support by plastic glue injection and separates the lower end surface of the magnet from the housing assembly.

Preferably, the thickness of the first buffer layer is 1-5 mm, and the thickness of the second buffer layer is 1-5 mm.

Has the advantages that: the rotor subassembly of above structure utilizes the plastic support to fix the magnet of even number piece, and the location of having guaranteed magnet is accurate with the integrative injection moulding of plastic support for all magnets, has reduced the installation procedure of magnet to this rotor subassembly's spare part quantity is less, and the production simple installation, manufacturing cost is lower.

The utility model also discloses a motor, including above arbitrary rotor subassembly, this motor advantage relative to prior art is the same with above-mentioned rotor subassembly advantage for prior art, does not further give unnecessary details here.

The utility model also discloses a ceiling fan, including the motor that has above-mentioned rotor subassembly, this ceiling fan advantage of prior art is the same with above-mentioned rotor subassembly advantage for prior art, does not further describe herein.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is an external view of a rotor assembly according to the present invention;

FIG. 2 is an exploded schematic view of FIG. 1;

fig. 3 is a schematic view of the internal structure of a first embodiment of the rotor assembly of the present invention;

fig. 4 is a schematic view of the internal structure of a second embodiment of the rotor assembly of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

Referring to fig. 1 and 2, a rotor assembly of the present invention includes: casing subassembly 10 and the magnetic component who sets up in casing subassembly 10, magnetic component includes plastic support 2 and even number piece magnet 3, plastic support 2 install in the inside of casing subassembly 10, even number piece magnet 3 circumference distributes on plastic support 2 and forms a whole with plastic support 2 integrative injection moulding. The rotor subassembly of above structure utilizes plastic support 2 fixed with the magnet 3 of even number piece, and all magnet 3 and the integrative injection moulding of plastic support 2 have guaranteed that the location of magnet 3 is accurate, have reduced magnet 3's installation procedure to this rotor subassembly's spare part quantity is less, and the production simple installation, manufacturing cost is lower. Wherein, casing subassembly 10 includes casing 11, casing 12 and a plurality of threaded fastener 13 down, goes up and all offers the screw hole corresponding with a plurality of threaded fastener 13 on casing 11 and the casing 12 down, offers the positioning hole who lets lie in threaded fastener 13 and pass on the plastic support 2, and threaded fastener 13 loops through casing 12, positioning hole and last casing 11 down and with magnetic component auxiliary fixation.

The utility model discloses an in some embodiments, plastic support 2 includes a ring portion 21, the inner circle evenly distributed of ring portion 21 has a plurality of vertical ribs 211, constitutes between two adjacent vertical ribs 211 to be used for the holding one magnet 3's accommodation space, the accommodation space can be partly or whole parcel rather than the both sides face of the magnet 3 that corresponds, and above-mentioned plastic support 2 is very simple to magnet 3's parcel structure to can accomplish the fixing to magnet with less injecting glue volume.

Referring to fig. 2, in order to avoid radial displacement between the plastic bracket 2 and the housing assembly 10, four supporting portions 22 are integrally formed on the outer ring of the circular ring portion 21, and the supporting portions 22 abut against the side surface inside the housing assembly 10 to form a supporting structure.

Referring to fig. 3, in some embodiments of the present invention, the upper end of the plastic support 2 protrudes upward from the upper end surface of the magnet 3, where the height of the support portion 22 is higher than the annular portion 21, the upper end of the support portion 22 is the upper end of the plastic support 2, the upper end of the support portion 22 abuts against the upper portion inside the housing assembly 10, a first height gap is formed between the upper end surface of the magnet 3 and the upper surface inside the housing assembly 10, the lower end of the plastic support 2 protrudes downward from the lower end surface of the magnet 3, the lower end of the plastic support 2 abuts against the lower portion inside the housing assembly 10, and a second height gap is formed between the lower end surface of the magnet 3 and the lower surface inside the housing assembly 10. Thereby preventing the magnet 3 from being broken due to the rigid contact between the upper and lower ends of the magnet 3 and the housing assembly 10.

Referring to fig. 4, in some embodiments of the present invention, the upper end surface of the magnet 3 is flush with or protrudes upward from the upper end of the plastic bracket 2, a first buffer layer 4 is disposed between the upper end surface of the magnet 3 and the upper surface of the interior of the housing assembly 10, the lower end surface of the magnet 3 is flush with or protrudes downward from the lower end of the plastic bracket 2, and a second buffer layer 5 is disposed between the lower end surface of the magnet 3 and the lower surface of the interior of the housing assembly 1a 0. The first buffer layer 4 can avoid rigid contact between the upper end face of the magnet 3 and the shell assembly 10, and the second buffer layer 5 can avoid rigid contact between the lower end face of the magnet 3 and the shell assembly 10, so that the magnet 3 is prevented from being broken, and normal use of the rotor assembly is ensured.

As a further improvement of the above rotor assembly, the first buffer layer 4 is formed on the plastic support 2 by plastic injection and separates the upper end surface of the magnet 3 from the housing assembly 10, and the second buffer layer 5 is formed on the plastic support 2 by plastic injection and separates the lower end surface of the magnet 3 from the housing assembly 10.

As the preferred embodiment of the utility model, the thickness of first buffer layer 4 is 1 ~ 5mm, the thickness of second buffer layer 5 is 1 ~ 5 mm.

The above embodiments are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonable combinations of the technical solutions recorded in the embodiments. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. A rotor assembly, comprising: casing subassembly (10) and the magnetic component who sets up in casing subassembly (10), its characterized in that, magnetic component includes plastic support (2) and even number piece magnet (3), plastic support (2) install in the inside of casing subassembly (10), even number piece magnet (3) circumference distribute on plastic support (2) and with plastic support (2) integrative injection moulding and constitute a whole.

2. A rotor assembly as claimed in claim 1, wherein:

the plastic support (2) comprises a circular ring part (21), a plurality of vertical ribs (211) are uniformly distributed on the inner ring of the circular ring part (21), an accommodating space for accommodating one magnet (3) is formed between every two adjacent vertical ribs (211), and the accommodating space can partially or completely wrap the two side faces of the magnet (3) corresponding to the accommodating space.

3. A rotor assembly as claimed in claim 2, wherein:

the outer ring of the circular ring part (21) is integrally formed with at least two supporting parts (22), and the supporting parts (22) are abutted against the side surface inside the shell component (10).

4. A rotor assembly as claimed in claim 1, 2 or 3, wherein:

the upper end of plastic support (2) upwards protrusion in the up end of magnet (3), the upper end of plastic support (2) and the upper portion looks butt in casing subassembly (10), form first high clearance between the up end of magnet (3) and the upper surface of the inside of casing subassembly (10), the lower extreme of plastic support (2) downwards protrusion in the lower terminal surface of magnet (3), the lower part looks butt in the lower extreme of plastic support (2) and casing subassembly (10), form second high clearance between the lower terminal surface of magnet (3) and the lower surface of the inside of casing subassembly (10).

5. A rotor assembly as claimed in claim 1, 2 or 3, wherein:

the upper end face of the magnet (3) is flush with or protrudes upwards from the upper end of the plastic support (2), a first buffer layer (4) is arranged between the upper end face of the magnet (3) and the upper surface of the interior of the shell assembly (10), the lower end face of the magnet (3) is flush with or protrudes downwards from the lower end of the plastic support (2), and a second buffer layer (5) is arranged between the lower end face of the magnet (3) and the lower surface of the interior of the shell assembly (10).

6. A rotor assembly as claimed in claim 5, wherein:

the first buffer layer (4) is formed on the plastic support (2) through plastic glue injection, the upper end face of the magnet (3) is separated from the shell assembly (10), and the second buffer layer (5) is formed on the plastic support (2) through plastic glue injection, the lower end face of the magnet (3) is separated from the shell assembly (10).

7. A rotor assembly as claimed in claim 6, wherein:

the thickness of first buffer layer (4) is 1 ~ 5mm, the thickness of second buffer layer (5) is 1 ~ 5 mm.

8. An electrical machine comprising a rotor assembly according to any one of claims 1 to 7.

9. A ceiling fan comprising the motor of claim 8.