CN216959632U

CN216959632U - Brushless motor and fan

Info

Publication number: CN216959632U
Application number: CN202220372109.8U
Authority: CN
Inventors: 胡洪武; 石秋; 罗丹
Original assignee: Jiangmen Lusituo Motor Electric Appliance Co ltd
Current assignee: Xinxin Technology Shenzhen Group Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-12
Anticipated expiration: 2032-02-23

Abstract

The utility model discloses a brushless motor and a fan, which comprise an upper bracket, a lower bracket and a motor part, wherein the upper bracket, the motor part and the lower bracket are sequentially connected; wherein, motor element includes the magnetic ring, the iron ring, ball bearing, stator core, the hollow shaft of PCB board and being used for crossing the line, stator core encircles and installs in the hollow shaft outside, the iron ring tight fit in the upper bracket, the magnetic ring is installed in the iron ring the inside, the PCB board encircles and installs in the hollow shaft outside, the hollow shaft includes first end and second end, the diameter of first end is greater than the diameter of second end, first end is connected in the lower carriage, the second end is connected in the upper bracket, ball bearing encircles and installs in the outside of hollow shaft. Through the brushless motor that assembly structure is simple, can make the motor volume littleer, can be under the prerequisite of control price, reduce power, raise the efficiency, use brushless motor be circuit board program control, the customer of also being convenient for increases new function, through the mode that adopts the hollow shaft for the centre of motor can cross the line, makes the installation more convenient.

Description

Brushless motor and fan

Technical Field

The utility model relates to the field of fan motor assembly, in particular to a brushless motor and a fan.

Background

With the improvement of life of people, the requirements of people on the appearance and the function of a fan are higher and higher, the traditional fan motor basically mainly comprises a shaded pole motor and a capacitance motor, the efficiency of the motors is not high, the volume of the motors is large, and the whole fan looks bloated.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the brushless motor and the fan provided by the utility model can effectively reduce the power, improve the efficiency and reduce the volume of the motor.

In a first aspect, an embodiment of the present invention provides a brushless motor, which includes an upper bracket, a lower bracket, and a motor component. The upper bracket, the motor part and the lower bracket are sequentially connected; the motor component comprises a magnetic ring, an iron ring, a ball bearing, a stator core, a PCB and a hollow shaft for passing wires, the stator core is installed on the outer side of the hollow shaft in a surrounding mode, the iron ring is tightly matched with the upper support, the magnetic ring is installed inside the iron ring, the PCB is installed on the outer side of the hollow shaft in a surrounding mode, the hollow shaft comprises a first end and a second end, the diameter of the first end is larger than that of the second end, the first end is connected to the lower support, the second end is connected to the upper support, and the ball bearing is installed on the outer side of the hollow shaft in a surrounding mode.

The brushless motor according to the embodiment of the utility model has at least the following beneficial effects: through the brushless motor that assembly structure is simple, can make the motor volume littleer, can be under the prerequisite of control price, reduce power, raise the efficiency, use brushless motor be circuit board program control, the customer of also being convenient for increases new function, through the mode that adopts the hollow shaft for the centre of motor can cross the line, makes the installation more convenient.

According to some embodiments of the utility model, the upper bracket is in the shape of an annular cap, and the surface of the upper bracket is provided with ribs and grooves distributed uniformly along the circumference of the hollow shaft.

According to some embodiments of the utility model, the lower bracket is in the shape of an annular cover, the surface of the lower bracket being provided with heat dissipation openings evenly distributed along the circumference of the hollow shaft.

According to some embodiments of the utility model, the first end of the hollow shaft is provided with a first screw hole for fixing a motor, and the second end is provided with a second screw hole for fixing a functional accessory such as a front cover display panel, an atomizer, and the like.

According to some embodiments of the utility model, the hollow shaft is provided with a wire cover at a side thereof for placing and guiding a wire.

According to some embodiments of the utility model, the second end of the hollow shaft is provided with a washer.

According to some embodiments of the utility model, the PCB is circular, and the edge of the PCB is provided with a wire.

According to some embodiments of the utility model, the magnetic ring is provided with an annular iron gasket and an annular three-wave gasket at a central position.

According to some embodiments of the utility model, the number of ball bearings is two, the two ball bearings being of the type 6805ZZ and 6804ZZ, respectively, wherein the ball bearing of the type 6805ZZ is mounted at the first end of the hollow shaft and the ball bearing of the type 6804ZZ is mounted at the second end of the hollow shaft.

In a second aspect, embodiments of the present invention provide a fan including a brushless motor as described in the first aspect.

The fan provided by the embodiment of the utility model at least has the following beneficial effects: through the brushless motor that assembly structure is simple, can make the motor volume littleer, can be under the prerequisite of control price, reduce power, raise the efficiency, use brushless motor be circuit board program control, the customer of also being convenient for increases new function, through the mode that adopts the hollow shaft for the centre of motor can cross the line, makes the installation more convenient.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a brushless motor according to an embodiment of the present invention;

fig. 2 is an external view of a magnetic ring of a brushless motor according to an embodiment of the present invention;

fig. 3 is an external view of an iron ring of a brushless motor according to an embodiment of the present invention;

fig. 4 is an external view of an upper bracket of a brushless motor according to an embodiment of the present invention;

fig. 5 is an external view of a lower bracket of a brushless motor according to an embodiment of the present invention;

FIG. 6 is an elevational view of a first end of a hollow shaft of a brushless motor in accordance with an embodiment of the present invention;

FIG. 7 is a second end elevational view of a hollow shaft of a brushless motor in accordance with an embodiment of the present invention;

fig. 8 is an external view of a hollow shaft of a brushless motor according to an embodiment of the present invention;

fig. 9 is a front view of a stator core of a brushless motor according to an embodiment of the present invention;

fig. 10 is a side view of an external shape of a brushless motor according to an embodiment of the present invention.

Reference numerals:

the motor comprises an upper bracket 1000, a lower bracket 3000, a motor part 2000, a ball bearing 2010, a first ball bearing 2012, a second ball bearing 2011, a hollow shaft 2020, a PCB 2030, a stator core 2040, a washer 2050, a three-wave pad 2060, an iron pad 2070, a magnetic ring 2080, an iron ring 2090, a lead cover 2100, a reinforcing rib 1100, a groove 1200, an opening 3100, a first end 2021, a second end 2022, a lead 2110, a connector 2120, a first screw hole 2023, a second screw hole 2024, and a screw 1310.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The following detailed description of the embodiments of the present invention is provided, and unless otherwise explicitly defined, terms such as set, connected and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.

Referring to fig. 1, a brushless motor according to an embodiment of the present invention includes an upper bracket 1000, a lower bracket 3000, and a motor part 2000. The upper bracket 1000, the motor part 2000, and the lower bracket 3000 are connected in sequence.

The motor component 2000 includes a magnetic ring 2080, an iron ring 2090, a ball bearing 2010, a stator core 2040, a PCB plate 2030 and a hollow shaft 2020 for passing wires, the stator core 2040 is installed around the outside of the hollow shaft 2020, the iron ring 2090 is tightly fitted to the upper bracket 1000, the magnetic ring 2080 is installed inside the iron ring 2090, the PCB plate 2030 is installed around the outside of the hollow shaft 2020, the hollow shaft 2020 includes a first end 2021 and a second end 2022, the diameter of the first end 2021 is greater than that of the second end 2022, the first end 2021 is connected to the lower bracket 3000, the second end 2022 is connected to the upper bracket 1000, and the ball bearing 2010 is installed around the outside of the hollow shaft 2020. When the motor component 2000 is assembled, the hollow shaft 2020 is taken as a center, the second end 2022 is taken as an upper side, the first end 2021 is taken as a lower side, the PCB plate 2030 is firstly sleeved from the second end 2022 and fixed on the outer side of the hollow shaft 2020 by the screw 1310, the welding surface faces upwards, then the stator core 2040 is installed on the outer side of the hollow shaft 2020 and positioned on the upper side of the PCB plate 2030, then the ball bearings 2010 are installed at two ends of the hollow shaft 2020, the lead cover 2100 is installed on the outer side before the ball bearing 2010 is installed at the first end 2021 of the hollow shaft 2020, the washer 2050 is installed on the second end 2022 in advance, then the matched iron ring 2090 and the magnetic ring 2080 are tightly installed on the upper bracket 1000, and the annular three-wave pad 2060 and the annular iron pad 2070 are also installed at the center of the magnetic ring 2080; finally, the second end 2022 of the hollow shaft 2020 is connected to the upper bracket 1000, the first end 2021 is connected to the lower bracket 3000, and the upper bracket 1000 and the lower bracket 3000 are fixed by the screws 1310, thereby completing the assembly of the fan motor. As can be seen from the above assembly process, the stator core 2040 is mounted around the outside of the hollow shaft 2020; supporting iron ring 2090 and magnetic ring 2080 tight fit in upper bracket 1000, the PCB board 2030 is built-in, has saved the space of additionally placing the circuit board, thereby has reduced the volume of motor greatly because the motor has adopted such structure, through adopting hollow shaft 2020 for the centre of motor can cross the line, and the installation is also more convenient.

Referring to fig. 4 and 10, in some embodiments of the present invention, the upper bracket 1000 is in the shape of an annular cover, the surface of the upper bracket 1000 is provided with reinforcing ribs 1100 and grooves 1200 uniformly distributed along the circumference of the hollow shaft 2020, the reinforcing ribs 1100 are provided to make the upper bracket 1000 stronger, and the grooves 1200 are provided to balance the mud so that the motor can be better balanced during operation.

Referring to fig. 5, in some embodiments of the present invention, the lower bracket 3000 is in the shape of an annular cover, and heat dissipation openings 3100 are uniformly distributed along the circumference of the hollow shaft 2020 on the surface of the lower bracket 3000 to facilitate heat dissipation.

Referring to fig. 6, 7 and 8, in some embodiments of the present invention, the first end 2021 of the hollow shaft 2020 is provided with a first screw hole 2023 for fixing a motor, and the second end 2022 is provided with a second screw hole 2024 for fixing a functional accessory such as a front cover display panel, a nebulizer, and the like.

Referring to fig. 1 and 10, in some embodiments of the utility model, the hollow shaft 2020 is provided with a wire cover 2100 at a side thereof for placing and guiding the wires 2110 extracted from the PCB 2030, and the ends of the wires 2110 are provided with connectors 2120.

Referring to fig. 1, in some embodiments of the utility model, the second end 2022 of the hollow shaft 2020 is provided with a washer 2050 for lifting and bearing against the inner race of the ball bearing 2010 without interference.

Referring to fig. 1 and 10, in some embodiments of the present invention, the PCB 2030 is circular, and the edge of the PCB 2030 is provided with the wires 2110, so that the PCB 2030 can meet the requirement of the fan motor for starting.

Referring to fig. 1, 2 and 3, in some embodiments of the present invention, an annular iron washer 2070 and an annular three-wave washer 2060 are disposed at the center of the magnetic ring 2080 to counteract axial play of the motor, so as to effectively reduce noise during operation of the motor.

Referring to fig. 1, in some embodiments of the present invention, the number of ball bearings 2010 is two, namely, a first ball bearing 2012 and a second ball bearing 2011 having a model of 6805ZZ and a model of 6804ZZ, respectively, wherein the first ball bearing 2012 having a model of 6805ZZ is mounted to the first end 2021 of the hollow shaft 2020 and the second ball bearing 2011 having a model of 6804ZZ is mounted to the second end 2022 of the hollow shaft 2020.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A brushless motor characterized by: the motor comprises an upper bracket, a lower bracket and a motor part, wherein the upper bracket, the motor part and the lower bracket are sequentially connected;

the motor component comprises a magnetic ring, an iron ring, a ball bearing, a stator core, a PCB and a hollow shaft for passing wires, the stator core is installed on the outer side of the hollow shaft in a surrounding mode, the iron ring is tightly matched with the upper support, the magnetic ring is installed inside the iron ring, the PCB is installed on the outer side of the hollow shaft in a surrounding mode, the hollow shaft comprises a first end and a second end, the diameter of the first end is larger than that of the second end, the first end is connected to the lower support, the second end is connected to the upper support, and the ball bearing is installed on the outer side of the hollow shaft in a surrounding mode.

2. A brushless electric machine according to claim 1, wherein: the upper bracket is in an annular cover shape, and reinforcing ribs and grooves which are uniformly distributed along the circumferential direction of the hollow shaft are arranged on the surface of the upper bracket.

3. A brushless electric machine according to claim 1, wherein: the lower support is in an annular cover shape, and heat dissipation openings which are uniformly distributed along the circumferential direction of the hollow shaft are formed in the surface of the lower support.

4. A brushless electric machine according to claim 1, wherein: the hollow shaft first end is provided with the first screw hole that is used for fixed motor, the second end is provided with the second screw hole that is used for fixed function accessory.

5. A brushless electric machine according to claim 1, wherein: and a wire cover for placing and guiding a wire is arranged on the side surface of the hollow shaft.

6. A brushless electric machine according to claim 1, wherein: a washer is disposed at the second end of the hollow shaft.

7. A brushless electric machine according to claim 1, wherein: the PCB board is the ring form, the edge of PCB board is provided with the wire.

8. A brushless electric machine according to claim 1, wherein: and an annular iron gasket and an annular three-wave gasket are arranged at the central position of the magnetic ring.

9. A brushless electric machine according to claim 1, wherein: ball bearing's quantity is two, two the ball bearing model be 6805ZZ and 6804ZZ respectively, wherein, the model is 6805ZZ ball bearing install in the hollow shaft first end, the model is 6804ZZ ball bearing install in the hollow shaft the second end.

10. A fan, characterized in that: comprising a brushless electric machine according to any of claims 1-9.