CN102324805B - Electric brush device of brush direct current micro motor - Google Patents
Electric brush device of brush direct current micro motor Download PDFInfo
- Publication number
- CN102324805B CN102324805B CN 201110236141 CN201110236141A CN102324805B CN 102324805 B CN102324805 B CN 102324805B CN 201110236141 CN201110236141 CN 201110236141 CN 201110236141 A CN201110236141 A CN 201110236141A CN 102324805 B CN102324805 B CN 102324805B
- Authority
- CN
- China
- Prior art keywords
- brush
- direct current
- brushgear
- arranged according
- current micromotor
- 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.)
- Active
Links
Images
Abstract
The invention provides an electric brush device of a brush direct current micro motor, which comprises a motor end cover for fixing an electric brush; an electric brush slot is arranged on the motor end cover; the fixed end of the electric brush is fixedly clamped in the electric brush slot; damping rubber is arranged on a brush handle; an electrode contact is fixed at the front section of the brush handle of the electric brush; the rear section of the brush handle is an elastic section; the damping rubber is cured silane modified polymer binder which is adhered on the rear section of the brush handle and extends to the motor end cover; and the structure is simple, the current and torque fluctuation in the brush motor can be reduced, so that vibration, noise and power consumption are reduced.
Description
Technical field
The present invention relates to the brush direct current micromotor, the brushgear of brush direct current micromotor has specifically been arranged.
Background technology
Have the brush direct current micromotor to widely apply on toy, this motor is generally by shell, rotor, permanent-magnet stator, commutator, brush, and end cap consists of.The brush caulking groove is arranged on electric motor end cap, and the stiff end of brush fixes in the brush caulking groove.For reducing vibration, reduce noise, reduce electric current and torque ripple in brush motor, can also paste the amortisseur bar of rubber, paper, PET material on brush holder.
the disclosed brush bracket device of CN201674374U comprises the brush holder support for the fixed electrode line, also has brush carrier, brush holder support is fixed on brush yoke, carbon brush is arranged in the positioning chamber of brush carrier, insulation is connected with constant force spring between carbon brush and brush carrier, one end of carbon brush and commutator segment Surface Contact, the other end is connected with constant force spring, between brush holder support and brush yoke, and/or between constant force spring and carbon brush, damping gasket for reducing vibration is installed, damping gasket is by the damping substrate, damping layer and the stack of damping panel consist of, damping layer is between damping substrate and damping panel, this device can reduce vibration, reduce noise, but complex structure.
CN102035310A discloses a kind of brushgear of dc micro-motor, comprise motor base, motor base is provided with a pair of brush parts and commutator, the brush parts comprise holder and brush, and brush is fixed on holder, the outer surface of the head abuts commutator of brush, the bottom stretches out in holder, the extension of brush scribbles lubricating oil or the colloid of high damping characteristic, and the grease of high damping characteristic or the concentration of colloid are indefinite, can require allotment arbitrarily according to different vibration dampings.Lubricating oil or colloid that high damping is used in this invention instead can reduce brush chattering, but damping rate are less.
the disclosed motor of CN102005886A comprises stator and rotor, stator comprises a plurality of circumferential isolated brush around commentator arrangements, each brush has the contact-making surface that electrically contacts with described commutator, relative biased face and peripheral wall, each brush is arranged in has the cave wall, in the brush cave of substrate and biasing spring, biasing spring is configured to apply contact force to described biased face, thereby impel described contact-making surface and described commutator to electrically contact, insert damper between each cave wall or corresponding pedestal and corresponding brush, but the brush of this motor and damper structure are complicated, difficulty of processing is large.
Summary of the invention
The object of the present invention is to provide a kind of simple structure, can reduce electric current and torque ripple in brush motor, thereby reduce vibration, reduce noise and reduce the brushgear that the brush direct current micromotor is arranged of power consumption.
Brushgear of the present invention comprises the electric motor end cap of fixed brush, the brush caulking groove is arranged on electric motor end cap, the stiff end of brush fixes in the brush caulking groove, damping glue is arranged on brush holder, the brush holder leading portion of described brush is fixed with electrode contact blade, the brush holder back segment is stretch section, and the silane modified polymer adhesive of described damping glue for solidifying sticks to the brush holder back segment and extend to electric motor end cap.
In the present invention, described silane modified polymer adhesive is silane modified polyether adhesive or silicane-modified polyurethane adhesive, can be also silicone adhesive agent.
In the present invention, the brush holder leading portion can have crimping, to strengthen the rigidity of brush holder leading portion.
0.5 ~ 3 millimeter of damping glue thickness, from the brush holder back segment to the electric motor end cap progressive additive, being positioned near the thickness of end cap is 1 ~ 3 millimeter.
The silane modified polymer adhesive preferably comprises following composition and weight ratio: the end dialkoxy silicane base polyethers of viscosity 4000 ~ 20000Pa.s or end dialkoxy silicane based polyurethanes 20 ~ 50%, plasticizer 10 ~ 30%, filler 20 ~ 40%, crosslinking agent 2 ~ 8%, catalyst 0.5 ~ 4%.Preferably: the end dialkoxy silicane base polyethers of viscosity 4000 ~ 20000Pa.s or end dialkoxy silicane based polyurethanes 30 ~ 45%, plasticizer 15 ~ 30%, filler 25 ~ 40%, crosslinking agent 2 ~ 6%, catalyst 1 ~ 3%.
Above-mentioned plasticizer can be more than one of phthalic acid ester, alkyl sulfonic ester, polyethers, and preferred polyethers is the poly(ethylene oxide) of molecular weight 300 ~ 500.
Above-mentioned filler can be more than one in calcium carbonate, talcum powder, silica flour, titanium dioxide, kaolin or magnesium oxide.
Above-mentioned crosslinking agent can be 4-amino-3, more than one in 3-dimethylbutyl trimethoxy silane, anilinomethyl triethoxy silazane, methyl allyl acyloxypropyl trimethoxysilane.
Above-mentioned catalyst can be more than one in dibutyl tin dilaurate, dioctyl two tin laurates, dibutyl two valeric acid tin, dioctyl tin oxide, dioctyl two tin acetates, Dibutyltin oxide.
The present invention can also add appropriate tackifier, as vinyl three t-butylperoxy silane, trithiocyanuric acid etc., is used for regulating adhesive viscosities, so that apply construction.In addition, can also add appropriate age resistor to improve ageing resistace.
The present invention's application of adhesive after the brush assembling becomes damping glue, just can use after curing, use the motor of adhesive coat to compare with the motor that does not use adhesive, in the situation that output power of motor is identical, the electric weight consumption reduces 12 ~ 20%, and noise can reduce by 3 ~ 10 decibels, the motor speed deviation ratio descends 30 ~ 50%, the brushgear simple structure, easy to manufacture, can reduce the motor manufacturing cost.
Description of drawings
Fig. 1 is brushgear schematic diagram of the present invention.
Fig. 2 is the A-A profile.
Embodiment
Brushgear shown in Figure 1 comprises the electric motor end cap 1 of fixed brush, brush caulking groove 2 is arranged on electric motor end cap 1, the stiff end 3 of brush fixes in brush caulking groove 2, the brush holder leading portion 4 of brush is fixed with electrode contact blade 5, brush holder back segment 6 is stretch section, and damping glue 7 sticks to brush holder back segment 6 and extends to electric motor end cap 1.Shown in Figure 2, brush holder leading portion 4 has crimping 8 to strengthen the rigidity of brush holder leading portion 4.Electric motor end cap adopts plastic material injection molded, after the assembling brush, adopt the adhesive of following examples to be coated between brush holder back segment 6 and electric motor end cap 1, coating thickness 0.5 ~ 3mm, the 1 coating thickness progressive additive from brush holder back segment 6 to electric motor end cap, being positioned near the thickness of end cap is 1 ~ 3 millimeter, becomes damping glue 7 after curing.
Embodiment 1: the end dialkoxy silicane base polyethers 300g of viscosity 20000Pa.s, the poly(ethylene oxide) 200g of mean molecule quantity 300, titanium dioxide 200g, anilinomethyl triethoxy silazane 40g, dibutyl tin dilaurate 20g mixes under water-less environment, forms adhesive.
Embodiment 2: the end dialkoxy silicane base polyethers 300g of viscosity 8000Pa.s, dibutyl phthalate 50g, the poly(ethylene oxide) 100g of mean molecule quantity 500, calcium carbonate 300g, methyl allyl acyloxypropyl trimethoxysilane 20g, dibutyl tin dilaurate 10g, vinyl three t-butylperoxy silane 10g, mix under water-less environment, form adhesive.
Embodiment 3: the end dialkoxy silicane base polyethers 300g of viscosity 15000Pa.s, the poly(ethylene oxide) 200g of mean molecule quantity 300, titanium dioxide 200g, anilinomethyl triethoxy silazane 40g, dibutyl tin dilaurate 20g mixes under water-less environment, forms adhesive.
Embodiment 4: the end dialkoxy silicane based polyurethanes 300g of viscosity 10000Pa.s, dodecyl sodium sulfonate ethyl ester 50g, the poly(ethylene oxide) 150g of mean molecule quantity 500, calcium carbonate 200g, methyl allyl acyloxypropyl trimethoxysilane 20g, dibutyl tin dilaurate 10g mixes under water-less environment, forms adhesive.
Embodiment 5: the end dialkoxy silicane based polyurethanes 300g of viscosity 15000Pa.s, the poly(ethylene oxide) 200g of mean molecule quantity 300, titanium dioxide 300g, anilinomethyl triethoxy silazane 50g, dibutyl tin dilaurate 20g mixes under water-less environment, forms adhesive.
Embodiment 6: the end dialkoxy silicane based polyurethanes 300g of viscosity 5000Pa.s, the poly(ethylene oxide) 200g of mean molecule quantity 500, titanium dioxide 200g, vinyl three t-butylperoxy silane 2g, anilinomethyl triethoxy silazane 40 dibutyl two valeric acid tin 15g, mix under water-less environment, form adhesive.
The performance test contrast
The motor of same configuration, equal-wattage is a collection of, has applied the adhesive of above-described embodiment, solidifies each 10, the motor that becomes damping glue after 2 days, does not use the motor 10 (Comparative Examples) of damping glue to carry out the contrast test of following items:
The noise test: in the situation that background noise 28DB, the employing model is that the digital display formula noisemeter of AR824/SL4001A carries out;
The rotating speed deviation: adopting model is the Intelligent Digital tachometer test rotating speed deviation of DT2234C;
Operating current: load same fan blade on motor output shaft, operating voltage 3.7V, the operating current of (12000 rev/mins) when adopting DC ammeter (model RXN-3020D) to measure the fan blade maximum (top) speed is with the operating current under relatively the motor equal-wattage is exported;
Consume electric quantity of power supply: the 3.7V lithium cell charging is saturated, and motor is assemblied on toy airplane, the remaining piezoelectric voltage of test flight time and battery.
The mean value of test result is as follows:
| Embodiment | Noise (DB) | The rotating speed deviation | Operating current | Flight time | The remaining piezoelectric voltage of battery |
| Comparative Examples | 65 | 8.5% | 5200mA | 6 minutes 20 seconds | 3.3V? |
| Embodiment 1 | 61.5 | 5.0% | 4750mA | 7 minutes 35 seconds | 3.5V |
| Embodiment 2 | 58.3 | 4.7% | 4800mA | 7 minutes 05 second | 3.5V |
| Embodiment 3 | 56.5 | 6.0% | 4600mA | 7 minutes 45 seconds | 3.5V |
| Embodiment 4 | 58 | 5.0% | 4700mA | 7 minutes 15 seconds | 3.5V |
| Embodiment 5 | 57.4 | 4.5% | 4700mA | 7 minutes 20 seconds | 3.5V |
| Embodiment 6 | 58.5 | 5.8% | 4650mA | 7 minutes 35 seconds | 3.5V |
Claims (8)
1. one kind has the brushgear of brushing direct current micromotor, the electric motor end cap that comprises fixed brush, the brush caulking groove is arranged on electric motor end cap, the stiff end of brush fixes in the brush caulking groove, damping glue is arranged on brush holder, it is characterized in that, the brush holder leading portion of described brush is fixed with electrode contact blade, the brush holder back segment is stretch section, the silane modified polymer adhesive of described damping glue for solidifying, stick to the brush holder back segment and extend to electric motor end cap, described silane modified polymer adhesive is silane modified polyether adhesive or silicane-modified polyurethane adhesive, comprise following composition and weight ratio: the end dialkoxy silicane base polyethers of viscosity 4000 ~ 20000Pa.s or end dialkoxy silicane based polyurethanes 20 ~ 50%, plasticizer 10 ~ 30%, filler 20 ~ 40%, crosslinking agent 2 ~ 8%, catalyst 0.5 ~ 4%.
2. the brushgear of brush direct current micromotor is arranged according to claim 1, it is characterized in that, described brush holder leading portion has crimping.
3. the brushgear of brush direct current micromotor is arranged according to claim 1, it is characterized in that, 0.5 ~ 3 millimeter of described damping glue thickness, from the brush holder back segment to the electric motor end cap progressive additive, being positioned near the thickness of end cap is 1 ~ 3 millimeter.
4. the brushgear that the brush direct current micromotor is arranged according to claim 1, it is characterized in that, described silane modified polymer adhesive comprises end dialkoxy silicane base polyethers or the end dialkoxy silicane based polyurethanes 30 ~ 45% of following composition and weight ratio: 4000 ~ 20000Pa.s, plasticizer 15 ~ 30%, filler 25 ~ 40%, crosslinking agent 2 ~ 6%, catalyst 1 ~ 3%.
5. the brushgear of brush direct current micromotor is arranged according to claim 1, it is characterized in that, described plasticizer is more than one of poly(ethylene oxide) of phthalic acid ester, alkyl sulfonic ester, molecular weight 300 ~ 500.
6. the brushgear of brush direct current micromotor is arranged according to claim 4, it is characterized in that, described filler is more than one in calcium carbonate, talcum powder, silica flour, titanium dioxide, kaolin or magnesium oxide.
7. the brushgear that the brush direct current micromotor is arranged according to claim 4, it is characterized in that, described crosslinking agent is 4-amino-3, more than one in 3-dimethylbutyl trimethoxy silane, anilinomethyl triethoxy silazane, methyl allyl acyloxypropyl trimethoxysilane.
8. the brushgear that the brush direct current micromotor is arranged according to claim 4, it is characterized in that, described catalyst is more than one in dibutyl tin dilaurate, dioctyl two tin laurates, dibutyl two valeric acid tin, dioctyl tin oxide, dioctyl two tin acetates, Dibutyltin oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110236141 CN102324805B (en) | 2011-08-17 | 2011-08-17 | Electric brush device of brush direct current micro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110236141 CN102324805B (en) | 2011-08-17 | 2011-08-17 | Electric brush device of brush direct current micro motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102324805A CN102324805A (en) | 2012-01-18 |
| CN102324805B true CN102324805B (en) | 2013-05-22 |
Family
ID=45452492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110236141 Active CN102324805B (en) | 2011-08-17 | 2011-08-17 | Electric brush device of brush direct current micro motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102324805B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616175B (en) | 2018-05-10 | 2020-04-14 | 胡建坤 | Brush permanent magnet micromotor and assembling method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5357159A (en) * | 1992-06-23 | 1994-10-18 | Mabuchi-Motor Co., Ltd. | Miniature motor |
| CN101820198A (en) * | 2009-02-26 | 2010-09-01 | 深圳拓邦股份有限公司 | End cover set of brush direct current motor |
| CN101834492A (en) * | 2009-03-10 | 2010-09-15 | 德昌电机(深圳)有限公司 | Electric motor and electric brush thereof |
| CN102035310A (en) * | 2010-12-20 | 2011-04-27 | 惠州市百宏微动技术工业有限公司 | Brush device for small direct current motor and brush damping process |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3667310B2 (en) * | 2002-09-11 | 2005-07-06 | 東炭化工株式会社 | Carbon brush |
-
2011
- 2011-08-17 CN CN 201110236141 patent/CN102324805B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5357159A (en) * | 1992-06-23 | 1994-10-18 | Mabuchi-Motor Co., Ltd. | Miniature motor |
| CN101820198A (en) * | 2009-02-26 | 2010-09-01 | 深圳拓邦股份有限公司 | End cover set of brush direct current motor |
| CN101834492A (en) * | 2009-03-10 | 2010-09-15 | 德昌电机(深圳)有限公司 | Electric motor and electric brush thereof |
| CN102035310A (en) * | 2010-12-20 | 2011-04-27 | 惠州市百宏微动技术工业有限公司 | Brush device for small direct current motor and brush damping process |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-99782A 2004.04.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102324805A (en) | 2012-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101866595B1 (en) | Room-temperature-curable polyorganosiloxane composition | |
| CN103890099B (en) | Insulativity silicone rubber composition | |
| WO2012085423A3 (en) | Voltage regulator device for a rotary electric machine, bearing for such a machine equipped with such a device and such a machine comprising such a bearing | |
| CN206407107U (en) | A kind of quick-disassembly structure of oar holder assembly | |
| CN102324805B (en) | Electric brush device of brush direct current micro motor | |
| WO2013180254A3 (en) | Room temperature-curable electrically conductive fluorosilicone rubber composition | |
| EP3684872A1 (en) | Compositions based on silane-terminated polymers with improved adhesion on thermoplastics | |
| CN102093720A (en) | Ketoxime type room temperature vulcanized silicone rubber with long storage period and preparation method thereof | |
| EP3924412A1 (en) | Thermally conductive curable composition | |
| CN104277760B (en) | A kind of thixotropic One Component Silicons Construction Sealant and preparation method thereof | |
| WO2006049642A3 (en) | Electric motor having convex high-speed brush | |
| CN208862699U (en) | A kind of motor shaft current eliminates structure and motor | |
| CN104662780A (en) | Motor and holder device | |
| WO2010105867A3 (en) | Electric drive engine, especially for a unit in a motor vehicle | |
| CN106100273B (en) | A kind of inner-rotor brushless motor | |
| CN212449351U (en) | High solid low polyurethane resin production conveyor that glues | |
| CN208862695U (en) | A kind of brushless motor | |
| CN209104942U (en) | Multi-function motor | |
| WO2009066930A3 (en) | Vibration motor | |
| CN203443049U (en) | Air guide mechanism for lower layer blades at air outlet of automobile air conditioner | |
| CN103467995B (en) | A kind of preparation method of room temperature vulcanized silicone rubber | |
| CN205744958U (en) | Bearing assembly and there is its indoor apparatus of air conditioner | |
| CN202197179U (en) | Cylindrical three-groove iron core micro machine with improved end cover | |
| CN209731007U (en) | The detachable adjuster of permanent protective property and the automotive alternator with it | |
| CN206099014U (en) | Brush holder assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151231 Address after: Chenghai District of Guangdong city in Shantou province 515800 Laimei Industrial Zone Industrial Road Patentee after: GUANGDONG CHAOLI MOTOR CO., LTD. Address before: Chenghai District of Guangdong city in Shantou province 515800 Laimei Industrial Zone Industrial Road Patentee before: Shantou Chenghai Chaoli Micromotor Co., Ltd. |