CN1967951A - A carbon brush used for electric engine of cleaner - Google Patents
A carbon brush used for electric engine of cleaner Download PDFInfo
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- CN1967951A CN1967951A CN 200610097709 CN200610097709A CN1967951A CN 1967951 A CN1967951 A CN 1967951A CN 200610097709 CN200610097709 CN 200610097709 CN 200610097709 A CN200610097709 A CN 200610097709A CN 1967951 A CN1967951 A CN 1967951A
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- carbon brush
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- graphite
- cleaner
- electric engine
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Abstract
The invention relates to a carbon brush of dust collector motor, wherein its production comprises that: mixing graphite, adhesive, and methyl-p-hydroxybenzoate, shaping, solidifying, ; the content of methyl-p-hydroxybenzoate whose average diameter is lower than 25micrometer is 2-12mass% of total weight; the graphite whose average diameter is lower than 50micrometer is artificial graphite treated above 2000Deg. C. The inventive carbon brush has better self-lubricant property, long service life and the function to reduce splash.
Description
Technical field
The present invention relates to the carbon brush that the series excitation type fractional horse power motor is used, specially refer to the carbon brush of used for electric engine of cleaner.
Background technology
Before the present invention proposed, carbon brush used for electric engine of cleaner, added and carries out mixing, moulding, curing behind binding agent and the lubricant and get as base-material with native graphite.Lubricant is molybdenum bisuphide (MoS in interior
2) or metal dust (as copper, silver, lead etc.).Although mixing of molybdenum bisuphide increased the greasy property of carbon brush, can reduce the frictional dissipation of carbon brush.But this carbon brush porosity is little, and resistivity is less, causes the poor radiation of carbon brush.The temperature of carbon brush itself raises easily during machine operation; Resistivity is less to suppress the ability variation of spark when making carbon brush work, and the spark of generation makes motor temperature raise again, thereby influences the carbon brush characteristic, does not reach useful life 1000 hours.
Invention utility model content
The technical problem to be solved in the present invention is: propose a kind of new dust catcher carbon brush, the pyrophoric behavio(u)r when working to solve carbon brush, the useful life of improving carbon brush.
The present invention is achieved by the following technical measures.Add the P-hydroxybenzoic acid phenyl ester as lubricant in carbon brush, the P-hydroxybenzoic acid phenyl ester is called for short polybenzoate, and molecular formula is:
The base-material graphite powder of carbon brush adopts the Delanium (being called for short refining graphite) of high-temperature process.Native graphite can make the purity height through the graphitization more than 2000 ℃, the refining graphite that impurity is few.In making the carbon brush process, also binding agent be need use, thermosetting resin and maleimide-cyanate resin generally adopted, as solid-state or liquid epoxy resin, phenolic resins.
Described lubricant is that the addition of polybenzoate is 2～12 quality % (are benchmark with the dry powder gross mass), and preferred addition is 7～10%.This polybenzoate product all can be buied on market.It is 9～300 microns polybenzoate product that Co., Ltd of for example middle occasion morning twilight chemical research institute can supply granularity.
Polybenzoate and refining graphite and binding agent is mixed together, moulding and curing.Because polybenzoate and refining graphite itself have very strong lubrification, and granularity is very thin, be easy to mix when therefore mixing.After the moulding, be cured on request at 180 ℃.Because polybenzoate is a kind of macromolecule organic material, the part chain rupture can occur in the time of 180 ℃, thereby form pore.
Under the situation of addition less than 2 quality % (is benchmark with the dry powder gross mass) of polybenzoate, the chain rupture that can not give full play to polybenzoate forms pore and lubricated advantage; And the addition of polybenzoate is when being higher than 12 quality % (is benchmark with the dry powder gross mass), and the resistivity of carbon brush is too big, and the electricity of motor decreases serious during work.
Employing is crossed through high-temperature process more than 2000 ℃, particle mean size less than 50 microns Delanium as base-material, add 2～12 quality % (is benchmark with the dry powder gross mass), particle mean size less than 25 microns P-hydroxybenzoic acid phenyl ester (abbreviation polybenzoate) as lubricant; Add general thermosetting resin again as binding agent.The three puts together and carries out mixingly, and heat-treating under 180～250 ℃ temperature after the shape moulding on request becomes the carbon brush that meets the requirements.
After the present invention adopted abovementioned technology, polybenzoate had the performance that chain rupture forms pore as lubricant; Refining graphite purity height, conductibility is good.Made carbon brush thermal diffusivity is good, and product resistivity is big, and it is strong to suppress the spark ability during carbon brush work.In addition, polybenzoate and refining graphite all have good especially self-lubricating property, and the carbon brush of producing also has good self-lubricating property, and useful life is long.
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1
With the refining graphite 70 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 5 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding is made sample 1 after 180 ℃ of curing under the pressure of 100MPa.
Embodiment 2
With the refining graphite 68 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 7 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding is made sample 2 after 180 ℃ of curing under the pressure of 100MPa.
Embodiment 3
With the refining graphite 65 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 10 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding is made sample 3 after 180 ℃ of curing under the pressure of 100MPa.
Comparative Examples 1
The common graphite 70 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 5 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 1 sample after 180 ℃ of curing.
Comparative Examples 2
The common graphite 68 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 7 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 2 samples after 180 ℃ of curing.
Comparative Examples 3
The common graphite 65 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 10 quality % are mixing together for polyphenyl fat, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 3 samples after 180 ℃ of curing.
Comparative Examples 4
The refining graphite 70 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 5 quality % are mixing together for molybdenum bisuphide, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 4 samples after 180 ℃ of curing.
Comparative Examples 5
The common graphite 68 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 5 quality % are mixing together for molybdenum bisuphide, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 5 samples after 180 ℃ of curing.
Comparative Examples 6
The refining graphite 65 quality %s of particle mean size less than 50 microns, modified epoxy 25 quality %, 10 quality % are mixing together for molybdenum bisuphide, and the desired product of compression moulding under the pressure of 100MPa is made Comparative Examples 6 samples after 180 ℃ of curing.
Embodiment sample and comparative example are carried out the physical property test
Test condition: room temperature
Method of testing: 1. carry out the resistivity test by JB/T8133.2-1999.
2. carry out volume density test by JB/T8133.14-1999.
3. carry out Rockwell hardness test by JB/T8133.3-1999.
4. carry out the rupture strength test by JB/T8133.7-1999.
Test result such as following table:
Embodiment sample and comparative example are tested by following experimental condition and test method.
Voltage: 230V 60Hz
Experimental condition: room temperature
Operational mode: motor operation 870 seconds, had a rest 30 seconds.With 900 seconds was one-period.
Result of the test such as following table:
By above-mentioned two tables as can be seen: behind the Delanium (being called for short refining graphite) that uses P-hydroxybenzoic acid phenyl ester (abbreviation polybenzoate) and high-temperature process, can prolong the useful life of carbon brush, the spark when reducing carbon brush work.
Claims (4)
1. carbon brush used for electric engine of cleaner, it is characterized in that: with refining graphite, binding agent mixes with the P-hydroxybenzoic acid phenyl ester, and moulding is solidified and is obtained.
2. the described a kind of carbon brush used for electric engine of cleaner of claim 1, it is characterized in that: described P-hydroxybenzoic acid phenyl ester content is 2～12 quality %, is benchmark with the dry powder gross mass.
3. the described a kind of carbon brush used for electric engine of cleaner of claim 1 is characterized in that: the particle mean size of described P-hydroxybenzoic acid phenyl ester is for less than 25 microns.
4. the described a kind of carbon brush used for electric engine of cleaner of claim 1, it is characterized in that: described refining graphite is that particle mean size is less than 50 microns, and through the Delanium of high-temperature process more than 2000 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100977093A CN100420105C (en) | 2006-11-20 | 2006-11-20 | A carbon brush used for electric engine of cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100977093A CN100420105C (en) | 2006-11-20 | 2006-11-20 | A carbon brush used for electric engine of cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1967951A true CN1967951A (en) | 2007-05-23 |
| CN100420105C CN100420105C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100977093A Active CN100420105C (en) | 2006-11-20 | 2006-11-20 | A carbon brush used for electric engine of cleaner |
Country Status (1)
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| CN (1) | CN100420105C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654795A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Manufacturing method of brush used for dust collector motor |
| CN106654796A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Treadmill motor electric brush preparation method |
| CN106654782A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Electric brush for treadmill motor |
| CN106654780A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Material used to prepare electric brush applied to dust collector motor |
| CN106654781A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Electric brush used for dust collector motor |
| CN106654779A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Material for preparing brush for treadmill motors |
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|---|---|---|---|---|
| JPS5538976B2 (en) * | 1973-04-14 | 1980-10-07 | ||
| JPS5935155B2 (en) * | 1980-03-22 | 1984-08-27 | 三菱電機株式会社 | Manufacturing method of electrographite brush |
| JPS56160310A (en) * | 1980-05-07 | 1981-12-10 | Hitachi Chem Co Ltd | Manufacture of graphite material for lubrication |
| CN1028267C (en) * | 1990-03-07 | 1995-04-19 | 马渊马达株式会社 | Carbon brush for miniature motors and method of making same |
| DE4343736A1 (en) * | 1993-12-21 | 1995-06-22 | Mando Machine Co Ltd | Copper graphite brush prodn, useful in small motor for small car |
| CN1141763C (en) * | 2000-11-28 | 2004-03-10 | 上海交通大学 | Slide contact electric element having adhesive agent and making technology thereof |
| GB2389358B (en) * | 2002-06-06 | 2007-01-17 | Totankako Co Ltd | Carbon brush |
| JP3667310B2 (en) * | 2002-09-11 | 2005-07-06 | 東炭化工株式会社 | Carbon brush |
| CN101001819A (en) * | 2004-08-02 | 2007-07-18 | 阿斯莫有限公司 | Carbon brush and rotating electrical machine |
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2006
- 2006-11-20 CN CNB2006100977093A patent/CN100420105C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654795A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Manufacturing method of brush used for dust collector motor |
| CN106654796A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Treadmill motor electric brush preparation method |
| CN106654782A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Electric brush for treadmill motor |
| CN106654780A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Material used to prepare electric brush applied to dust collector motor |
| CN106654781A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Electric brush used for dust collector motor |
| CN106654779A (en) * | 2015-11-04 | 2017-05-10 | 苏州东翔碳素有限公司 | Material for preparing brush for treadmill motors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100420105C (en) | 2008-09-17 |
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Effective date of registration: 20200508 Address after: Wenzhou Shuangfeng town Industrial Park Taicang city Suzhou city Jiangsu province 215416 Patentee after: SUZHOU DONEKA NEW MATERIALS CORP. Ltd. Address before: Wenzhou Industrial Park, 215414 Taicang city in Jiangsu province Shuangfeng town Patentee before: SUZHOU DONON CARBON WARE Co.,Ltd. |