CN105634187A - Damping device of brushless dust collector motor - Google Patents
Damping device of brushless dust collector motor Download PDFInfo
- Publication number
- CN105634187A CN105634187A CN201610171857.9A CN201610171857A CN105634187A CN 105634187 A CN105634187 A CN 105634187A CN 201610171857 A CN201610171857 A CN 201610171857A CN 105634187 A CN105634187 A CN 105634187A
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- CN
- China
- Prior art keywords
- motor
- stator
- dust collector
- damping device
- motor stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a damping device of a brushless dust collector motor. The damping device comprises a motor stator and a motor shell which sheaths the motor stator, wherein a clamping ring is arranged between the outer ring of the motor stator and the motor shell; the clamping ring comprises an inner circle surface and an outer circle surface; a plurality of grooves extend along a direction from the outer circle surface to the inner circle surface; the grooves are alternately arranged; clamping ring teeth are formed between every two grooves; and the inner circle surface of the clamping ring is connected with the outer ring of the motor stator in a close fit manner. According to the damping device of the brushless dust collector motor, the clamping ring is arranged to absorb most of the vibration energy generated by the motor stator, so that the noise generated by the motor is greatly reduced, the circulation area of the high-speed airflow is enlarged, the wind drag is reduced and the system efficiency of a dust collector fan is improved.
Description
Technical field
The present invention relates to a kind of motor shock absorption technical field, especially relate to the damping device of a kind of brushless motor of dust collector.
Background technology
Noise, can affect human lives. Every obstruction people normally have a rest, the sound of normal study and work is all noise. Suction cleaner is as daily life product, and it operationally needs electric energy is converted into mechanical energy, thus motor can band rotor blade high speed rotating, the motor of high speed rotating can produce very big noise, affects human lives.
The motor of dust collector of great majority in existing market, it is all that motor stator is directly fixed on motor case, effective disrupter is lacked between motor Stator and electrical machine machine shell, the vibration energy produced during machine operation is made to be directly delivered on motor case, thus to external diffusion, produce huge vibrations and noise.
Summary of the invention
It is an object of the invention to overcome the big defect of prior art motor noise, the damping device of a kind of brushless motor of dust collector is provided, by arranging shaking device between motor stator outer ring and motor case, the vibrations produced during to effectively reduce the work of motor of dust collector and noise.
For achieving the above object, the present invention proposes following technical scheme: the damping device of a kind of brushless motor of dust collector, it motor case comprising motor stator and being sheathed on motor stator outer ring, described motor stator also comprises stator yoke and stator teeth, is provided with garter spring between described motor stator outer ring and motor case.
Preferably, described garter spring has inner headed face and periphery, and described periphery is extended to the direction of inner headed face plural groove.
Preferably, the alternate setting of described groove, the part between groove forms teeth portion.
Preferably, described garter spring is tightly located on the outer ring of described motor stator.
Preferably, stick on the outer ring of motor stator for shrink-fit or garter spring between described garter spring and described motor stator.
Preferably, described garter spring is aluminium garter spring or engineering plastics ring.
When suction cleaner works, the logical high-frequency current of motor stator forms the stator magnetic field of high speed rotating, and the stator magnetic field of high speed rotating drags permanent magnetism rotor high-speed and rotates, and electric energy is converted into mechanical energy. By optimizing the fixed sturcture of motor stator, between motor stator outer diameter and motor case, garter spring is set, owing to aluminium is the mechanically extraordinary metal of damping effect, so stator garter spring preferable alloy aluminium is as material, same, the garter spring of engineering plastics material also can play extraordinary damping effect, therefore the vibration energy part that motor stator produces is absorbed by garter spring, a part passes to motor case by garter spring, the noise of motor is greatly reduced, and is reduced to the level that people's ear can accept. Being provided with some grooves on garter spring, groove is evenly distributed on garter spring, by arranging groove, increases the circulation area of high velocity air, reduces windage, it is to increase the system efficiency of blower of cleaner.
Compared with prior art, the invention has the beneficial effects as follows:
1, optimize motor fixed structure of stator, reduce the noise that motor produces
2, increase airflow area, reduce windage, it is to increase blower fan system efficiency.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the present invention;
Fig. 2 is the schematic diagram of the air channel circulation in groove hole on the garter spring of the present invention.
The magnetic pulling force that Fig. 3 is the stator generation of the present invention acts on motor case schematic diagram.
Reference numeral: 1, motor stator, 2, motor case, 3, garter spring, 31, inner headed face, 32, periphery, 33, teeth portion, 34, groove, 4, motor rotor, 11, stator yoke, 12, stator teeth, 13, outer ring.
Embodiment
Below in conjunction with the accompanying drawing of the present invention, the technical scheme of the embodiment of the present invention is carried out clear, complete description.
Shown in composition graphs 1, the damping device of disclosed a kind of brushless motor of dust collector, it comprises motor stator 1 and is sheathed on the motor case 2 outside motor stator, and the garter spring 3 being arranged between motor stator 1 and motor case 2, described motor stator 1 also comprises stator yoke 11, stator teeth 12, forms the outer ring 13 of stator outside described stator yoke.
Described garter spring 3 is tightly located on the outer ring 13 of described motor stator 1, it comprises inner headed face 31 and periphery 32, and the teeth portion 33 being formed between periphery 32 and periphery, groove 34 is formed between adjacent teeth portion, that is, being arranged with plural number groove 34 from described periphery 32 to the extension of inner headed face 31 direction, the part between adjacent grooves 34 forms teeth portion 33, air-flow passage can be formed, as shown by the arrows in Figure 2 between the periphery 32 being arranged so that garter spring 3 of groove 34 and motor case 2. And between the outer ring of the inner headed face 31 of garter spring 3 and described motor stator 1, it being the setting of wringing fit, the mode of wringing fit can be the various modes commonly used in the art, comprises shrink-fit or gluing cooperation, is good in an interference fit.
In general, suction cleaner electric fan is made up of two portions, motor part and blower fan part. Motor part is made up of motor stator 1, motor rotor, motor case 2, electric motor end cap. Motor stator 1 is made up of stator yoke 11, stator teeth 12. Motor rotor 4 is also made up of rotor magnetic pole, rotor magnet, rotor yoke.
Shown in composition graphs 2, the stator yoke 11 of motor stator 1 is wound with coil, during machine operation, coil in stator yoke 11 leads to into electric current, now forming magnetic field around motor stator 1, the stator magnetic field drive motor rotor 4 of high speed rotating rotates, and electric energy is converted into mechanical energy. While motor rotor 4 high speed rotating, on motor stator 1, two symmetrical stator teeths 11 can produce very big radial magnetic pulling force with two corresponding rotor magnetic poles on motor rotor 4, this magnetic pulling force can make the outer wall of motor stator 1 produce mechanical deformation, general, the outer wall of motor stator 1 matches with motor case 2, and mechanical deformation acts on motor case 2. The rotor of high speed rotating constantly produces magnetic pulling force, and the mechanical deformation that magnetic pulling force produces constantly acts on motor case 2, as shown in Figure 3, it is easy to produce very big noise.
Owing to metallic aluminium mechanically has good damping effect, therefore garter spring 3 also adopts aluminium matter. Same, engineering plastics material also can play good damping effect, and therefore garter spring 3 can be aluminium garter spring or engineering plastics ring. After adding garter spring 3, optimizing the fixed sturcture of motor stator 1, the mechanical deformation reducing the generation of magnetic pulling force is to the reactive force of motor case 2 so that motor vibration operationally is able to further reduction, and the noise of machine operation is also further reduced.
More preferably, arranging teeth portion 33 and the structure of groove 34 owing to garter spring 3 adopts, groove 34 structure increases the circulation area of high velocity air, as in Fig. 2, the direction of arrow represents gas flow, reduces windage, effectively raises the efficiency of blower fan system. The reactive force produced when the design of teeth portion 33 can offset motor stator 1 mechanical deformation so that only the mechanical energy of sub-fraction is applied on motor case 2, thus significantly reduces noise, enables the level that noise is lowered to people's ear and accepts.
The present invention by being provided with garter spring 3 between motor stator 1 and motor case 2, garter spring arranges teeth portion 33 and groove 34, optimize electric machine fixation structure, the mechanical deformation reducing the generation of magnetic pulling force is to the reactive force of motor case 2, thus reduce noise, reduce windage, it is to increase blower of cleaner system works efficiency.
Technology contents and the technology feature of the present invention have disclosed as above; but those of ordinary skill in the art still may do all replacement and the modification that do not deviate from spirit of the present invention based on the teaching of the present invention and announcement; therefore; protection domain of the present invention should be not limited to the content that embodiment discloses; and the various replacement and the modification that do not deviate from the present invention should be comprised, and contained by present patent application claim.
Claims (6)
1. the damping device of a brushless motor of dust collector, it motor case comprising motor stator and being sheathed on motor stator outer ring, described motor stator also comprises stator yoke and stator teeth, it is characterised in that: it is provided with garter spring between described motor stator outer ring and motor case.
2. the damping device of brushless motor of dust collector according to claim 1, it is characterised in that, described garter spring has inner headed face and periphery, and described periphery is extended to the direction of inner headed face plural groove.
3. the damping device of brushless motor of dust collector according to claim 2, it is characterised in that, the alternate setting of described groove, the part between groove forms teeth portion.
4. the damping device of brushless motor of dust collector according to claim 1, it is characterised in that, described garter spring is tightly located on the outer ring of described motor stator.
5. the damping device of brushless motor of dust collector according to claim 4, it is characterised in that, stick on the outer ring of motor stator for shrink-fit or garter spring between described garter spring and described motor stator.
6. the damping device of brushless motor of dust collector according to claim 1 to 5 any one, it is characterised in that, described garter spring is aluminium garter spring or engineering plastics ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171857.9A CN105634187A (en) | 2016-03-24 | 2016-03-24 | Damping device of brushless dust collector motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610171857.9A CN105634187A (en) | 2016-03-24 | 2016-03-24 | Damping device of brushless dust collector motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105634187A true CN105634187A (en) | 2016-06-01 |
Family
ID=56048837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610171857.9A Pending CN105634187A (en) | 2016-03-24 | 2016-03-24 | Damping device of brushless dust collector motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105634187A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB953057A (en) * | 1959-04-27 | 1964-03-25 | Electrolux Ab | Suspension device for a rotary device |
| EP1917894A1 (en) * | 2006-10-31 | 2008-05-07 | Samsung Gwangju Electronics Co., Ltd. | Motor-noise absorbing apparatus of vacuum cleaner |
| JP2009033860A (en) * | 2007-07-26 | 2009-02-12 | Asmo Co Ltd | Rotary electric machine |
| CN201345590Y (en) * | 2008-12-30 | 2009-11-11 | 上海日立电器有限公司 | Mounting structure for rolling rotor compressor motor stator |
| CN102670131A (en) * | 2012-02-20 | 2012-09-19 | 江苏美的春花电器股份有限公司 | Mute dust collector |
| CN205509743U (en) * | 2016-03-24 | 2016-08-24 | 苏州市润豪电机有限公司 | Damping device of brushless dust catcher motor |
-
2016
- 2016-03-24 CN CN201610171857.9A patent/CN105634187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB953057A (en) * | 1959-04-27 | 1964-03-25 | Electrolux Ab | Suspension device for a rotary device |
| EP1917894A1 (en) * | 2006-10-31 | 2008-05-07 | Samsung Gwangju Electronics Co., Ltd. | Motor-noise absorbing apparatus of vacuum cleaner |
| JP2009033860A (en) * | 2007-07-26 | 2009-02-12 | Asmo Co Ltd | Rotary electric machine |
| CN201345590Y (en) * | 2008-12-30 | 2009-11-11 | 上海日立电器有限公司 | Mounting structure for rolling rotor compressor motor stator |
| CN102670131A (en) * | 2012-02-20 | 2012-09-19 | 江苏美的春花电器股份有限公司 | Mute dust collector |
| CN205509743U (en) * | 2016-03-24 | 2016-08-24 | 苏州市润豪电机有限公司 | Damping device of brushless dust catcher motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
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| WD01 | Invention patent application deemed withdrawn after publication |