CN201690335U - Brushless motor and brushless motor fan - Google Patents

Abstract

A brushless motor and a brushless motor fan, the brushless motor includes a housing, at least one magnetic pole unit, and a rotation unit. The shell seat comprises a bottom cover, an upper cover which can be detachably combined with the bottom cover, and an accommodating space defined by the bottom cover and the upper cover. The rotating unit is pivoted between the bottom cover and the upper cover and comprises at least one bearing, a rotating shaft which is arranged on the bearing in a penetrating way and extends out of the bottom cover and the upper cover, a supporting frame arranged on the outer periphery of the rotating shaft and at least one magnet ring which is annularly arranged on the supporting frame. Therefore, the brushless motor not only can be reduced in size, improves the flexibility in application, is convenient to manufacture, saves the manufacturing cost, but also can reduce the noise generated during operation.

Description

Brushless Motor and Brushless Motor Fan

technical field

The utility model relates to a motor and a fan, in particular to a brushless motor and a brushless motor fan.

Background technique

Referring to Fig. 1, one of the existing fans adopts an AC motor, as shown in the content disclosed in the new patent case of China Taiwan Announcement No. M337930 "Motor Stator Structure Improvement of Household Fan", the AC motor 1 includes a stator 11, A rotor 12 arranged in the stator 11, and two fixed covers 13 respectively covering the two opposite sides of the stator 11, the stator 11 is formed by laminating and pressing a plurality of silicon steel sheets, and on the stator 11 A plurality of coil groups 14 are wound. In use, the rotor 12 starts to rotate by energizing the coil assembly 14 . However, the above-mentioned design has problems such as large occupied volume and difficulty in coil winding.

Referring to Fig. 2, another kind of existing fan is to use a DC brushed motor, as shown in the content disclosed in the new patent case of "Motor Carbon Brush Holder Improvement" in Taiwan Announcement No. M327599, the actuation mode of this kind of motor 2 is After the current is conducted through the contact of the carbon brush 21 and the commutator 22, the rotor 23 will generate a magnetic field and interact with the stator magnetic field to rotate. However, in addition to the same problem that the coil is not easy to wind, the above design also has problems such as high noise and carbon brush wear.

Contents of the invention

The main purpose of the utility model is to provide a brushless motor with simple manufacturing process.

Another object of the present invention is to provide a low-cost and low-noise brushless motor.

Another object of the present invention is to provide a brushless motor fan with simple manufacturing process.

Another object of the present invention is to provide a low-cost and low-noise brushless motor fan.

The purpose of this utility model and its technique of solving are to adopt following technical scheme to realize. A brushless motor proposed according to the utility model includes a housing base, at least one magnetic pole unit arranged in the housing base, and a rotating unit. The housing base includes a bottom cover, a The upper cover combined with the cover, and an accommodating space jointly defined by the bottom cover and the upper cover, the rotation unit is pivotally connected between the bottom cover and the upper cover, the rotation unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a rotating shaft passing through the bearing and protruding from the bottom cover and the upper cover, a supporting frame arranged on the outer periphery of the rotating shaft, and at least one magnet ring arranged on the supporting frame, It is characterized in that the magnetic pole unit includes two insulating frames arranged at intervals, an iron core interposed between the two insulating frames, and a coil wound on the insulating frame and the iron core.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, the aforementioned brushless motor, wherein the housing base further includes at least one first positioning member formed on the bottom cover, and the magnetic pole unit further includes at least one penetrating through the insulating frame, the iron core, and the first positioning member. A locating pin for a locating member.

Preferably, in the aforementioned brushless motor, the magnet ring is disposed inside the support frame and outside the magnetic pole unit.

Preferably, in the aforementioned brushless motor, the bearing is an oil-impregnated bearing.

The purpose of the utility model and the technology to solve it can also be realized by adopting the following technical solutions. A brushless motor proposed according to the utility model includes a housing base, at least one magnetic pole unit, and a rotating unit, the housing base includes a bottom cover, an upper cover detachably combined with the bottom cover, and An accommodating space defined by the bottom cover and the upper cover, the rotation unit is pivotally connected between the bottom cover and the upper cover, the rotation unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a through On the bearing, there is a rotating shaft protruding from the bottom cover and the upper cover, a supporting frame extending outward from the outer periphery of the rotating shaft, and at least one magnet ring arranged on the supporting frame, characterized in that: the The magnetic pole unit includes two insulating frames arranged at intervals, an iron core sandwiched between the two insulating frames, and a coil wound on the insulating frame and the iron core, and the magnet ring is located inside the magnetic pole unit.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

Preferably, the aforementioned brushless motor, wherein the housing base further includes at least one first positioning member formed on the bottom cover, and at least one second positioning member formed on the upper cover and corresponding to the first positioning member The magnetic pole unit further includes at least one positioning pin extending through the insulating frame, the iron core, and the first and second positioning components.

Preferably, in the aforementioned brushless motor, the bearing is a ball bearing, and the rotating unit further includes at least one elastic member abutted between the bearing and the supporting frame.

Preferably, the aforementioned brushless motor, wherein the support frame has a body fixed on the rotating shaft, a flat plate extending outward from the body, and a mounting plate extending up and down from the flat plate, the magnet ring is The ring is set on the mounting plate.

The purpose of the utility model and the technology to solve it can also be realized by adopting the following technical solutions. A brushless motor fan proposed according to the utility model includes a brushless motor and a fan wheel driven by the brushless motor. The brushless motor has a housing, at least one magnetic pole unit, and a rotating unit. The shell seat includes a bottom cover, an upper cover detachably combined with the bottom cover, and an accommodating space jointly defined by the bottom cover and the upper cover, and the rotating unit is pivotally connected to the bottom cover and the upper cover Between the bottom cover and the upper cover, the rotating unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a rotating shaft passing through the bearing and protruding outside the bottom cover and the upper cover, and a rotating shaft extending outward from the outer periphery of the rotating shaft. The supporting frame, and at least one magnet ring set on the supporting frame, is characterized in that: the magnetic pole unit includes two insulating frames arranged at intervals, an iron core sandwiched between the two insulating frames, and a winding around the The insulating frame and the coil on the iron core.

The purpose of the utility model and the technology to solve it can also be realized by adopting the following technical solutions. A brushless motor fan proposed according to the utility model includes a brushless motor and a fan wheel driven by the brushless motor. The brushless motor has a housing, at least one magnetic pole unit, and a rotating unit. The shell seat includes a bottom cover, an upper cover detachably combined with the bottom cover, and an accommodating space jointly defined by the bottom cover and the upper cover, and the rotating unit is pivotally connected to the bottom cover and the upper cover Between the bottom cover and the upper cover, the rotating unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a rotating shaft passing through the bearing and protruding outside the bottom cover and the upper cover, and a rotating shaft extending outward from the outer periphery of the rotating shaft. The supporting frame, and at least one magnet ring set on the supporting frame, is characterized in that: the magnetic pole unit includes two insulating frames arranged at intervals, an iron core sandwiched between the two insulating frames, and a winding around the The insulating frame and the coil on the iron core, and the magnet ring are located inside the magnetic pole unit.

The beneficial effects of the utility model are: the design of the magnetic pole unit can not only effectively reduce the volume of the brushless motor itself, improve the flexibility of use, but also facilitate the production and save the production cost, and can also effectively reduce the operation time. the noise produced.

Description of drawings

Fig. 1 is a three-dimensional view of the "improvement of the stator structure of the motor of the household fan" disclosed in the Taiwan Patent No. M337930;

Fig. 2 is a three-dimensional exploded view of the "Motor Carbon Brush Holder Improvement" disclosed in the Taiwan Patent No. M327599;

Fig. 3 is a side sectional view illustrating the first preferred embodiment of the brushless motor of the present invention;

Fig. 4 is a three-dimensional exploded view illustrating a second preferred embodiment of the brushless motor of the present invention;

Fig. 5 is a side sectional view, assisting in explaining Fig. 4;

FIG. 6 is a side sectional view illustrating a preferred embodiment of the brushless motor fan of the present invention. In this embodiment, the brushless motor shown in FIG. 5 is combined with a fan wheel.

From Figure 3 to Figure 6: 31. shell base; 311. bottom cover; 312. upper cover; 313. accommodation space; 314. first positioning member; 315. second positioning member; 32. magnetic pole unit; Frame; 322. coil; 323. positioning pin; 320. iron core; 33. rotating unit; 331. rotating shaft; 332. supporting frame; 333. magnet ring; 334. bearing; 335. body; ; 338. Elastic part; 4. Fan wheel.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same numerals.

Referring to Fig. 3, it is the first preferred embodiment of the brushless motor of the present invention, comprising a housing base 31, four magnetic pole units 32 arranged in the housing base 31 (only two are shown due to the viewing angle), and A rotating unit 33 disposed in the housing 31 .

The housing base 31 includes a bottom cover 311, an upper cover 312 detachably combined with the bottom cover 311, an accommodating space 313 defined by the bottom cover 311 and the upper cover 312, and most of them are formed on the bottom. The first positioning part 314 on the cover 311 is in the shape of a perforation.

Each pole unit 32 includes two insulating frames 321 spaced apart, an iron core 320 sandwiched between the two insulating frames 321, a coil 322 wound on the insulating frame 321 and the iron core 320, and two penetrating The insulating frame 321, the iron core 320 and the positioning pin 323 corresponding to the first positioning member 314, and the two positioning pins 323 of each magnetic pole unit 32 are stretched behind the insulating frame 321 and the iron core 320 and placed on the In the corresponding first positioning member 314 , each magnetic pole unit 32 is positioned on the bottom cover 311 between the bottom cover 311 and the upper cover 312 .

The rotating unit 33 is pivotally connected between the bottom cover 311 and the upper cover 312, and includes a rotating shaft 331 protruding from the bottom cover 311 and the upper cover 312, a support frame 332 disposed on the outer periphery of the rotating shaft 331, Most of the rings are provided with a magnet ring 333 stacked on the inner side of the support frame 332, and two bearings 334 respectively arranged on the upper cover 312 and the bottom cover 311 for the shaft 331 to pass through. In this embodiment, the The bearing 334 is an oil bearing, and the magnet ring 333 is located outside the pole unit 32 . It should be noted that the support frame 332 can be integrated with the rotating shaft 331, or it can be fixed on the rotating shaft 331 separately, and the magnet ring 333 can also be replaced by a wider magnet ring 333. There are a plurality of magnet rings 333 in this embodiment, but it is not limited thereto.

Through the above design, the utility model brushless motor has the following advantages in actual use:

1. Easy manufacturing process, low manufacturing cost, and no noise: through the design of the magnetic pole unit 32, the winding of the coil 322 is easy, and there is no need for complicated structural design as in the prior art, so the manufacturing process is relatively easy, and of course it can Reduce production cost; in addition, there is no carbon brush design, and the noise during use can be relatively reduced.

2. Small size and high flexibility in use: the design of the above-mentioned magnetic pole unit 32 can effectively reduce the size, so it can be flexibly applied, such as being applied to home appliances such as fans, fruit juice machines, or air purifiers, especially fans. At the same time, because the brushless motor has a small volume, it can make the air flow surface of the fan larger, thereby improving the use effect.

Referring to Figures 4 and 5, it is the second preferred embodiment of the brushless motor of the present invention. The second locating member 315 on the upper cover 312, the two locating pins 323 of each pole unit 32 pass through and extend behind the insulating frame 321 and the iron core 320, and extend up and down on the corresponding first locating member 314 and the second locating member 314. In the two positioning members 315 , each magnetic pole unit 32 is interposed and positioned between the bottom cover 311 and the top cover 312 .

In this embodiment, the bearings 334 are ball bearings, and the rotating unit 33 also includes two elastic members 338 that are respectively pressed between each bearing 334 and the support frame 332, and the elastic members 338 are used to achieve Supporting and buffering the bearing 334.

Referring to FIG. 5 , the supporting frame 332 has a main body 335 fixed on the rotating shaft 331 , a flat plate 336 extending outward from the main body 335 , and a mounting plate 337 extending up and down from the flat plate 336 . The magnet ring 333 is directly disposed on the mounting plate 337 and located inside the magnetic pole unit 32 . Therefore, through the above design, in addition to achieving the effect of the above-mentioned preferred embodiment of the brushless motor, it also provides another option for use.

Referring to Fig. 6, it is a preferred embodiment of the brushless motor fan of the present invention, which is to install a fan wheel 4 on the second preferred embodiment of the brushless motor shown in Fig. 5, because the rotating shaft 331 is protruding Outside the bottom cover 311 and the upper cover 312, the fan wheel 4 is fixed on one end of the rotating shaft 331 protruding from the upper cover 312. When the rotating shaft 331 rotates, it can drive the fan wheel 4 to rotate. . Through the design of the reduced volume of the brushless motor, the air flow surface of the fan can be made larger, thereby improving the use effect.

It should be noted that in this embodiment, the second preferred embodiment of the brushless motor shown in Figure 5 is used for illustration, and of course the first preferred embodiment of the brushless motor shown in Figure 3 can also be used. Embodiment to install the fan wheel 4, not limited thereto; moreover, the rotating shaft 331 of the embodiment of the brushless motor fan of the present invention can also be combined with other objects according to actual needs to form such as a fruit juice machine, an air cleaner, Or the use of the range hood, not limited to the fact that the rotating shaft 331 of this embodiment is combined with the fan wheel 4 to form a fan.

As mentioned above, the design of the aforementioned brushless motor and the brushless motor fan can effectively reduce the volume, improve the flexibility of use, and is convenient to manufacture, which can save the production cost and effectively reduce the noise generated by the operation.

Claims (10)

1. A brushless motor, comprising a housing base, at least one magnetic pole unit arranged in the housing base, and a rotating unit, the housing base includes a bottom cover, an upper cover detachably combined with the bottom cover cover, and an accommodating space jointly defined by the bottom cover and the upper cover, the rotation unit is pivotally connected between the bottom cover and the upper cover, the rotation unit is arranged between the bottom cover and the upper cover and includes at least one bearing, A rotating shaft passing through the bearing and protruding from the bottom cover and the upper cover, a supporting frame arranged on the outer periphery of the rotating shaft, and at least one magnet ring arranged on the supporting frame, characterized in that: The magnetic pole unit includes two insulating frames arranged at intervals, an iron core interposed between the two insulating frames, and a coil wound on the insulating frame and the iron core. 2. The brushless motor according to claim 1, wherein the housing base further comprises at least one first positioning member formed on the bottom cover, and the magnetic pole unit further comprises at least one penetrating through the insulating frame , the iron core and the positioning pin of the first positioning member. 3. The brushless motor according to claim 2, wherein the magnet ring is disposed inside the support frame and outside the pole unit. 4. The brushless motor according to claim 3, wherein the bearing is an oil bearing. 5. A brushless motor, comprising a housing base, at least one magnetic pole unit, and a rotating unit, the housing base includes a bottom cover, an upper cover detachably combined with the bottom cover, and a The accommodating space jointly defined by the cover and the upper cover, the rotating unit is pivotally connected between the bottom cover and the upper cover, the rotating unit is arranged between the bottom cover and the upper cover and includes at least one bearing, and a And the rotating shaft protruding from the bottom cover and the upper cover, a supporting frame arranged on the outer periphery of the rotating shaft, and at least one magnet ring arranged on the supporting frame, is characterized in that: the magnetic pole unit includes two spacers An insulating frame is provided, an iron core interposed between the two insulating frames, and a coil wound on the insulating frame and the iron core, and the magnet ring is located inside the magnetic pole unit. 6. The brushless motor according to claim 5, wherein the housing base further comprises at least one first positioning member formed on the bottom cover, and at least one positioning member formed on the upper cover and corresponding to the first positioning member. As for the second positioning part of the positioning part, the magnetic pole unit further includes at least one positioning pin extending through the insulating frame, the iron core, the first positioning part and the second positioning part. 7. The brushless motor according to claim 6, wherein the bearing is a ball bearing, and the rotating unit further comprises at least one elastic member abutting against the bearing and the support frame. 8. The brushless motor according to claim 7, wherein the support frame has a body fixed on the rotating shaft, a flat plate extending outward from the body, and a mounting bracket extending up and down from the flat plate. plate, the magnet ring is set on the mounting plate. 9. A brushless motor fan, comprising a brushless motor and a fan wheel driven by the brushless motor, the brushless motor has a housing, at least one magnetic pole unit, and a rotating unit, the housing includes A bottom cover, an upper cover detachably combined with the bottom cover, and an accommodating space defined by the bottom cover and the upper cover, the rotating unit is pivotally connected between the bottom cover and the upper cover, the rotating The unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a rotating shaft passing through the bearing and protruding outside the bottom cover and the upper cover, a support frame arranged on the outer periphery of the rotating shaft, and at least A magnet ring set on the supporting frame is characterized in that: the magnetic pole unit includes two insulating frames arranged at intervals, an iron core sandwiched between the two insulating frames, and an iron core wound between the insulating frame and the insulating frame. Coils on the core. 10. A brushless motor fan, comprising a brushless motor and a fan wheel driven by the brushless motor, the brushless motor has a housing, at least one magnetic pole unit, and a rotating unit, the housing includes A bottom cover, an upper cover detachably combined with the bottom cover, and an accommodating space defined by the bottom cover and the upper cover, the rotating unit is pivotally connected between the bottom cover and the upper cover, the rotating The unit is arranged between the bottom cover and the upper cover and includes at least one bearing, a rotating shaft passing through the bearing and protruding outside the bottom cover and the upper cover, a support frame arranged on the outer periphery of the rotating shaft, and at least A magnet ring set on the supporting frame is characterized in that: the magnetic pole unit includes two insulating frames arranged at intervals, an iron core sandwiched between the two insulating frames, and an iron core wound between the insulating frame and the insulating frame. The coil on the iron core, and the magnet ring is located inside the magnetic pole unit.

Images