CN219499144U - High-speed motor and dust collector - Google Patents

Abstract

The utility model relates to a high-speed motor and a dust collector; the high-speed motor includes: the wind scooper, the fan blade, the casing, the support, rotor subassembly, stator subassembly and control panel, rotor subassembly's one end is connected in the support, other end transmission is connected in the fan blade, stator subassembly and casing are fixed in the support, and stator subassembly and rotor subassembly cooperate, the wind scooper is connected in the casing, the control panel is fixed in the support, and control panel and stator subassembly electric connection are equipped with the air intake on the wind scooper, the fan blade is located between wind scooper and the casing, wind scooper, fan blade and casing form the air current passageway, the fan blade forms the air current that flows through the air current passageway. When the fan blades rotate, the air flow generated by the fan blades passes through the air flow channel, so that heat in the motor is taken away, and the high-speed motor has good heat dissipation performance; meanwhile, the air deflector is matched with the fan blade, so that good air flow guiding is realized, larger suction force, lower noise and higher efficiency can be generated, and the cost is reduced.

Description

High-speed motor and dust collector

Technical Field

The utility model relates to the technical field of motors, in particular to a high-speed motor and a dust collector.

Background

The household dust collector consists of three parts, including dust raising, dust collecting and dust filtering, and includes generally serial commutator motor, centrifugal blower, dust filter and dust collecting accessory. The power of a typical vacuum cleaner is 400-1000W or more, and the power of a portable vacuum cleaner is typically 250W or less. The dust collector can remove dust and is mainly characterized in that an electric exhaust fan is arranged on the head part of the dust collector. The rotating shaft of the exhaust fan is provided with a fan blade wheel, after the power is on, the exhaust fan can generate higher suction force and pressure at the rotating speed of 500 circles per second, under the action of the suction force and the pressure, air is discharged at high speed, and the air in the fan is continuously supplemented by the air in the dust suction part at the front end of the fan, so that the interior of the dust collector generates instant vacuum, and negative pressure difference is formed between the air and the external atmospheric pressure, and the air containing dust is sucked under the action of the negative pressure difference. The dust and other impurities enter the dust filtering bag sequentially through the carpet or floor brush, the long connecting pipe, the bent pipe, the hose and the hose joint, the dust and other impurities are retained in the dust filtering bag, and the air is discharged from the tail of the machine body after being purified by the filter disc.

With the improvement of living standard, consumers pay more attention to the product experience, and the requirements on the function experience of the dust collector are higher. The motor of the traditional dust collector has a plurality of defects: large noise, small suction force, low efficiency and the like. The brush motor of the traditional dust collector is commutated through a carbon brush and a commutator, and the carbon brush slides along the commutator and contacts with different segments of the commutator along with the rotation of the motor. However, when rotating at high speed, the carbon brush wears quickly and is accompanied by serious sparks and noise, so that the motor of the conventional brush cleaner can only be ensured to be within 30000rpm, and in order to improve the suction force, the volume of the motor can only be increased, thereby causing the increase of cost.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a high-speed motor and a dust collector.

In order to solve the technical problems, the utility model adopts the following technical scheme:

in a first aspect, an embodiment of the present utility model provides a high-speed motor, including: the fan comprises a fan guide cover, fan blades, a shell, a support, a rotor assembly, a stator assembly and a control board, wherein one end of the rotor assembly is connected with the support, the other end of the rotor assembly is in transmission connection with the fan blades, the stator assembly and the shell are fixed on the support, the stator assembly is matched with the rotor assembly, the fan guide cover is connected with the shell, the control board is fixed on the support, the control board is electrically connected with the stator assembly, an air inlet is formed in the fan guide cover, the fan blades are located between the fan guide cover and the shell, the fan blades and the shell form an airflow channel, and the fan blades form airflow flowing through the airflow channel.

In a specific embodiment, the shell is provided with a plurality of air deflectors, and the air deflectors are all located in the airflow channel.

In a specific embodiment, the rotor assembly includes a rotating shaft, a magnetic ring and two bearings, the magnetic ring is sleeved on the rotating shaft, the two bearings support the rotating shaft together, one of the bearings is used for being connected with the bracket, the other bearing is used for being connected with the housing, the left end of the rotating shaft is connected with the fan blade, and the stator assembly surrounds the magnetic ring.

In a specific embodiment, a metal piece is further arranged between the magnetic ring and the two bearings, and the metal piece is sleeved on the rotating shaft.

In a specific embodiment, the stator assembly comprises a stator core and a winding, the winding is fixed on the stator core, the winding surrounds the magnetic ring, and the winding is electrically connected with the control board.

In a specific embodiment, the stator core is provided with an insulating framework, a terminal is mounted on the insulating framework, one end of the terminal is electrically connected with the winding, and the other end of the terminal is electrically connected with the control board.

In a specific embodiment, the high-speed motor further comprises an end cover, and the end cover is located at the right end of the control board and connected with the support.

In a specific embodiment, the circumference of the fan blade is in weight balance.

In a specific embodiment, a sealing element is further arranged between the wind scooper and the fan blade.

Compared with the prior art, the high-speed motor has the beneficial effects that: when the fan blades rotate, the air flow generated by the fan blades passes through the air flow channel, so that heat in the motor is taken away, and the high-speed motor has good heat dissipation performance; meanwhile, the air deflector is matched with the fan blade, so that good air flow guiding is realized, larger suction force, lower noise and higher efficiency can be generated, the cost is reduced, and the practicability is high.

In a second aspect, an embodiment of the present utility model provides a vacuum cleaner including a high-speed motor as described above.

Compared with the prior art, the dust collector has the beneficial effects that: through adopting high-speed motor, have good heat dispersion, still have good air current direction, can produce bigger suction, lower noise and higher efficiency, the cost is reduced is applicable to the dust catcher.

The utility model is further described below with reference to the drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a high-speed motor provided by the utility model;

FIG. 2 is a schematic cross-sectional view of a high-speed motor provided by the present utility model;

FIG. 3 is an exploded view of the high speed motor provided by the present utility model;

FIG. 4 is a perspective view of a rotor assembly according to the present utility model;

fig. 5 is a schematic cross-sectional view of a stator assembly provided by the present utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be attached, detached, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed 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. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

As shown in the specific embodiments of fig. 1 to 5, the present utility model discloses a high-speed motor, comprising: the fan comprises a fan housing 10, fan blades 20, a housing 30, a support 40, a rotor assembly 50, a stator assembly 60 and a control board 70, wherein one end of the rotor assembly 50 is connected to the support 40, the other end of the rotor assembly 50 is in transmission connection with the fan blades 20, the stator assembly 60 and the housing 30 are fixed to the support 40, the stator assembly 60 is matched with the rotor assembly 50, the fan housing 10 is connected to the housing 30, the control board 70 is fixed to the support 40, the control board 70 is electrically connected with the stator assembly 60, an air inlet 11 is formed in the fan housing 10, the fan blades 20 are located between the fan housing 10 and the housing 30, the fan housing 10, the fan blades 20 and the housing 30 form an air flow channel 80, and the fan blades 20 form air flows flowing through the air flow channel 80.

Specifically, when the fan blade 20 rotates, air is introduced from the air inlet 11 at a constant speed, and the air flow generated by the fan blade 20 passes through the air flow channel 80, so that heat in the motor is taken away, and the high-speed motor has good heat dissipation performance.

In one embodiment, the housing 30 is provided with a plurality of air deflectors 31, and the plurality of air deflectors 31 are located in the air flow channel 80.

Specifically, the air deflector 31 is mainly used for rectifying the air flow formed by the fan blade 20, rectifying the turbulent air flow generated by the fan blade 20 into the air flow with the same direction, and the air deflector 31 is matched with the fan blade 20, so that good air flow guiding is achieved, larger suction force, lower noise and higher efficiency can be generated, and the cost is reduced.

In this embodiment, the number of axial flow blades of the fan blade 20 may be 9, 13, 14 or 15, and the number of axial flow blades may be determined according to actual requirements. Preferably, the number of axial flow blades is 9. The number of the air deflectors 31 can be determined according to actual requirements. Preferably, the number of the air deflectors 31 is 8.

In an embodiment, the rotor assembly 50 includes a rotating shaft 51, a magnetic ring 52 and two bearings 53, the magnetic ring 52 is sleeved on the rotating shaft 51, the two bearings 53 support the rotating shaft 51 together, one bearing 53 is used for being connected with the bracket 40, the other bearing 53 is used for being connected with the housing 30, the left end of the rotating shaft 51 is connected with the fan blade 20, and the stator assembly 60 surrounds the magnetic ring 52.

Specifically, the concentricity of the rotor assembly 50 and the stator assembly 60 is the same, improving the accuracy of the motor. One of the bearings 53 is embedded in the bracket 40, and the other bearing 53 is embedded in the shell 30, so that the structure is compact and the integrity is strong.

Specifically, because the rare earth permanent magnet has high magnetic energy product and high coercivity, the rare earth permanent magnet rotor is used as a rotor magnetic ring of the high-speed motor, so that the power density of the motor can be greatly increased, and the volume of the motor is effectively reduced. Preferably, the rare earth permanent magnet rotor is made of neodymium iron boron permanent magnet materials.

In an embodiment, a metal piece 54 is further disposed between the magnetic ring 52 and the two bearings 53, and the metal piece 54 is sleeved on the rotating shaft 53.

Preferably, the metal member 54 is a copper sleeve that provides suitable pre-compression to the bearing 53 to reduce wear of the corresponding bearing 53 during high speed rotation.

In one embodiment, the stator assembly 60 includes a stator core 61 and a winding 62, the winding 62 is fixed on the stator core 61, the winding 62 surrounds the magnetic ring 52, and the winding 62 is electrically connected with the control board 70.

Specifically, the control board 70 controls the energizing sequence of the windings 62 through a vector control algorithm to realize high-speed rotation of the motor, replaces a carbon brush reversing ring in the brush motor, and effectively avoids adverse phenomena such as noise, EMC, dust pollution and the like caused by the carbon brush reversing ring.

Preferably, the bracket 40, the stator core 61 and the housing 30 are fixed together using screws, which is convenient to operate and has high stability and also has an anti-vibration function.

Preferably, the bracket 40 is triangular, has high strength and is stable, and has better supporting and fixing effects.

In an embodiment, the stator core 61 is provided with an insulating frame 63, and a terminal 64 is mounted on the insulating frame 63, one end of the terminal 64 is electrically connected to the winding 62, and the other end is electrically connected to the control board 70.

Specifically, the electrical connection is achieved through the terminals 64, which is strong in stability and saves space required for wiring to reduce the overall volume of the motor.

In one embodiment, the high speed motor further includes an end cap 90, and the end cap 90 is located at the right end of the control board 70 and is connected to the bracket 40.

Specifically, the end cap 90 and the control board 70 are fixed to the bracket 40 using screws, and the end cap 90 plays a role in positioning the motor and protecting the control board 70.

In one embodiment, the circumference of the fan blade 20 is unbalanced.

Specifically, the circumference of the fan blade 20 is in weight balance, so that the vibration and noise of the whole motor can be reduced better, and the rotating speed of the motor can reach more than 100000 rpm.

In an embodiment, a sealing member 100 is further disposed between the wind scooper 10 and the fan blade 20.

Specifically, the sealing member 100 is made of EVA soft material, and the sealing member 100 is embedded in the air guiding cover 10, and is used for sealing a gap between the air guiding cover 10 and the fan blade 20, so that air entering from the air inlet 11 flows into the fan blade 20 completely, and better heat dissipation and noise reduction effects are achieved.

In an embodiment, the casing 30 is provided with the annular groove 32, and the air guide cover 10 is embedded in the annular groove 32, so that the sealing effect is improved, the whole volume of the motor is reduced, and the aesthetic property is improved.

The utility model also discloses a dust collector which comprises the high-speed motor, and the dust collector uses the high-speed motor as a power source, and has the advantages of large suction force, small volume, low noise, high rotating speed and the like, so that the volume of the dust collector is smaller than that of the traditional dust collector under the same power, the cost is reduced, and the dust collector has better application scene.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims (10)

1. A high speed motor, comprising: the fan comprises a fan guide cover, fan blades, a shell, a support, a rotor assembly, a stator assembly and a control board, wherein one end of the rotor assembly is connected with the support, the other end of the rotor assembly is in transmission connection with the fan blades, the stator assembly and the shell are fixed on the support, the stator assembly is matched with the rotor assembly, the fan guide cover is connected with the shell, the control board is fixed on the support, the control board is electrically connected with the stator assembly, an air inlet is formed in the fan guide cover, the fan blades are located between the fan guide cover and the shell, the fan blades and the shell form an airflow channel, and the fan blades form airflow flowing through the airflow channel.

2. A high speed motor as claimed in claim 1, wherein a plurality of air deflectors are provided on the housing, the plurality of air deflectors being located within the airflow passage.

3. The high-speed motor according to claim 1, wherein the rotor assembly comprises a rotating shaft, a magnetic ring and two bearings, the magnetic ring is sleeved on the rotating shaft, the two bearings support the rotating shaft together, one bearing is used for being connected with the bracket, the other bearing is used for being connected with the shell, the left end of the rotating shaft is connected with the fan blade, and the stator assembly surrounds the magnetic ring.

4. A high-speed motor according to claim 3, wherein a metal member is further disposed between the magnetic ring and the two bearings, and the metal member is sleeved on the rotating shaft.

5. A high speed motor as recited in claim 3, wherein said stator assembly includes a stator core and windings, said windings being secured to said stator core, said windings surrounding said magnetic ring, said windings being electrically connected to said control board.

6. The high-speed motor according to claim 5, wherein an insulating frame is provided on the stator core, terminals are mounted on the insulating frame, one ends of the terminals are electrically connected with the windings, and the other ends of the terminals are electrically connected with the control board.

7. A high speed motor as claimed in claim 3, further comprising an end cap located at the right end of the control board and connected to the bracket.

8. A high speed motor according to claim 1, wherein the circumference of the fan blade is de-balanced.

9. The high-speed motor of claim 1, wherein a sealing member is further provided between the wind scooper and the fan blade.

10. A vacuum cleaner comprising a high speed motor as claimed in any one of claims 1 to 9.