CN104882986A - Electric brush carrier of automobile starter motor - Google Patents
Electric brush carrier of automobile starter motor Download PDFInfo
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- CN104882986A CN104882986A CN201510215135.4A CN201510215135A CN104882986A CN 104882986 A CN104882986 A CN 104882986A CN 201510215135 A CN201510215135 A CN 201510215135A CN 104882986 A CN104882986 A CN 104882986A
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- brush
- brush carrier
- positive plate
- plate
- negative plate
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Abstract
The invention provides an electric brush carrier of an automobile starter motor, and is characterized in that the electric brush carrier consists of a positive plate assembly and a negative plate assembly which are riveted together through tube-packaged rivets. The invention relates to a six-carbon-brush electric brush carrier of a new structure, is simple in manufacture technology and convenient to assemble and disassemble, has a long service life, ensures that axial dimensions of a motor does not change, has no special requirements for an external diameter of a riser of an armature commutator, armature manufacture technology is simple, and the one-time qualified rate is high. Since positive electric brushes and negative electric brushes must be distributed alternately on a bottom plate of the brush carrier, all the positive electric brushes and negative electric brushes must be connected in parallel respectively. The electric brush carrier provided by the invention uses a positive plate and negative plate combined structure, is reliable and can satisfy all requirements of the starter motor.
Description
Technical field
The present invention relates to a kind of automobile starting motor brush carrier, specifically, relate to a kind of positive/negative plate combined electrical brush holder being applied to automobile automatic start-stop technology.
Background technology
In order to respond the policy of national low-carbon environment-friendly, a lot of auto vendor is all proposed a kind of " automobile engine automatic start-stop technology " completely newly.When temporary parking in vehicle travel process (such as waiting red light), step on brake pedal, shelves (manual gear) are plucked in parking, start stop system detects that engine is in no-load running state, and gearbox is in neutral, and the speed of a motor vehicle is zero, accumulator electric-quantity is sufficient, these information pass to engine computer, and after meeting these conditions, it can send instruction and allow engine misses.When vehicle prepares starting, only need let slip the clutch, motor can drag engine ignition immediately.Its core technology is automatically control flame-out and start, this technology effectively can reduce the time of engine idle idle running, unnecessary dead time is reduced under this traffic loitered in city, realize startup and the shut-down operation of fast accurate, to a certain degree can reduce discharge and improve fuel economy, thus reach the object of fuel-economizing.
Automatic start-stop technology proposes very high requirement to the reliability of actuating motor and useful life.The actuating motor life-span that non-start and stop function automobile uses mostly below 50,000 times, the actuating motor life-span more than 250,000 times that the automobile of start and stop function uses.Life requirements improves five times, and actuating motor common in the market cannot meet instructions for use at all.
For meeting automobile engine automatic start-stop technology to the requirement of actuating motor long-life, high reliability, need the useful life of improving brush badly.In the prior art, the useful life of improving brush is all generally start with from the following aspects:
1, brush formula is improved.The life-span of motor can improve at most one to twice.But owing to being subject to the restriction of technology and production process equipment, when electric machine structure and brush size constancy, useful life also only has 80,000 times after current China starter brush formulation optimization, be difficult to the instructions for use meeting 250,000 times.
2, increase the contact area of brush and commutator, reduce current density.Mode the most common is, by increasing the width of brush, increase the contact area of brush and commutator, but this certainly will will increase the Zhou Changdu of commutator, and the axial length of motor also certainly will will lengthen, and motor cost can also be significantly increased.Moreover the axial dimension of client to motor has strict demand, be only therefore infeasible by increasing the axial dimension of brush.
3, brush size constancy, increases brush logarithm, reduces the current density flowing through brush, improves commutation ability, improves Service Life of Carbon Brush.The method is not owing to needing the axis changing motor long, and economy is best, is thus widely adopted.
Fig. 1 is that the actuating motor of prior art confluxes bridge sectional view.As shown in Figure 1, a flat type copper wire is used to be buckled on brush carrier as confluxing bridge 1-5, in order to reduce the axial length of motor, rotor commutator rise piece 1-1 external diameter is reduced, commutator riser 1-1 is protruded into and confluxes in bridge 1-5, but the drawback of this way be rotor make difficulty strengthen, particularly at rotor line 1-7 and head time, be easy to occur layer short circuit and bonding phenomenon.And this brush holder and bonnet are integral structures, when motor abnormality is reprocessed, refill back after brush holder and rear cover assembly take off and extremely bother.
Therefore, the art is badly in need of a kind of long-life, easy accessibility, is not increased again the brush carrier of miscellaneous part manufacture difficulty.
Summary of the invention
The present invention is a kind of six carbon brush brush carriers of new construction, and manufacture craft is simple, and assembly and disassembly is convenient, long service life, in turn ensure that motor axial dimension does not change, and does not specially require the rise piece external diameter of armature commutator simultaneously, armature manufacture craft is simple, and disposable qualification rate is high.Because brush must be that positive and negative electrode is alternately distributed on brush holder base plate, and all positive brushes, negative pole brush must be connected in parallel separately.Brush carrier of the present invention uses positive/negative plate fabricated structure, not only reliable but also meet all requirements of actuating motor.
The invention provides a kind of automobile starting motor brush carrier, it is characterized in that, brush carrier is made up of positive plate assembly, negative plate assembly, and positive plate assembly and negative plate assembly are driven the rivets by pipe and be riveted together.
According to one embodiment of present invention, wherein positive plate assembly is made up of positive plate, A brush carrier, B brush carrier, brush, brush spring, lug plate, lead-out wire, insulating sleeve.
According to one embodiment of present invention, wherein lug plate and lead-out wire are welded together by silver-containing solder, insulating sleeve is set on lead-out wire, lead-out wire and positive plate are welded together by silver-containing solder, A brush carrier, B brush carrier and positive plate are driven the rivets by pipe and are riveted together, and lead-in wire and the positive plate of brush are welded together by silver-containing solder.
According to one embodiment of present invention, wherein negative plate assembly is made up of negative plate, A brush carrier, B brush carrier, brush, brush spring.
According to one embodiment of present invention, wherein A brush carrier, B brush carrier and negative plate are driven the rivets by pipe and are riveted together, and lead-in wire and the negative plate of brush are welded together by silver-containing solder.
According to one embodiment of present invention, wherein positive plate adopts sheet metal to make, and it is simultaneously as the bridge that confluxes.
According to one embodiment of present invention, its center brush brush box is riveted together by positive plate and negative plate and tubular rivet, and positive plate is fixedly connected with brush carrier with negative plate and forms a part for current circuit.
According to one embodiment of present invention, wherein brush carrier and motor rear cover are independently arranged.
According to one embodiment of present invention, wherein brush carrier coordinates location fixing radial through the cylindrical of negative plate and motor stator casing inner stopper, and brush holder base plate and casing are axially compressed by motor rear cover by brush carrier.
Accompanying drawing explanation
By accompanying drawing, can clearly set forth main idea of the present invention, wherein:
Fig. 1 is that the automobile starting motor of prior art confluxes bridge sectional view.
Fig. 2 is that automobile starting motor of the present invention confluxes bridge schematic diagram.
Fig. 3 illustrates brush carrier assembly structure of the present invention.
Fig. 4 illustrates brush carrier positive plate assembly structure of the present invention.
Fig. 5 illustrates brush carrier negative plate assembly structure of the present invention.
Fig. 6 illustrates the automobile starting motor structure comprising brush carrier of the present invention.
Embodiment
In order to improve the useful life of brush carrier, ensure the simplification of disassembling and assembling machine, do not increase again the difficulty that rotor makes, spy has invented this brush carrier simultaneously.Main idea of the present invention is described in detail referring to Fig. 2-6.
This brush carrier is made up of positive plate assembly 3-1, negative plate assembly 3-2 two parts.Positive plate assembly and negative plate assembly 6 Φ 2.5 × 4.5 pipes 3-3 that drives the rivets is riveted together.
Positive plate assembly (referring to accompanying drawing 4) is by positive plate 4-8, A brush carrier 4-3(2), B brush carrier 4-1(1), brush 4-4(3), brush spring 4-2, lug plate 4-7, lead-out wire 4-6, insulating sleeve 4-5 form.Lug plate and lead-out wire are welded together by silver-containing solder (B-Ag50CuZn), and insulating sleeve 4-5 is set to 4-6 on lead-out wire, and lead-out wire 4-6 and positive plate 4-8 is welded together by silver-containing solder (B-Ag50CuZn).Brush carrier 4-1,4-3 and positive plate 6 Φ 2.5 × 4.5 pipes 3-3 that drives the rivets is riveted together.Brush 4-4 goes between and positive plate 4-8 is welded together by silver-containing solder (B-Ag50CuZn).
Negative plate assembly (referring to accompanying drawing 5) is by negative plate, A brush carrier 4-3(1), B brush carrier 4-1(2), brush 4-4(3), brush spring 4-2 forms.Brush carrier 4-1,4-3 and negative plate 6 Φ 2.5 × 4.5 pipes 3-3 that drives the rivets is riveted together.Brush 4-4 goes between and negative plate 5-1 is welded together by silver-containing solder (B-Ag50CuZn).
The brush carrier (referring to accompanying drawing 1) of prior art and bonnet are integrative-structures, and tapered sleeve frock cannot be used during installation to assemble.When reprocessing, brush carrier 1-3 is from after rotor 1-6 takes off together with bonnet, and brush 1-2 is rethought after being released by spring 1-3 to be set on rotor commutator 1-9, and maintenance extremely bothers.During machine operation, electric current is flowed out by battery positive voltage, electromagnetic switch B terminal 6-5 is arrived through connecting line, arrive electromagnetic switch M terminal 6-6 again, 1-5 on the bus bar being formed by copper coin stamping-out is arrived by lug plate, lead-out wire, then flow to rotor 1-6 through three carbon brush Fen San roads, then converged to bonnet by rotor Fen San road by three negative pole carbon brush, then pass through casing 1-10, protecgulum stream to electric bottle negative pole.
Brush carrier 6-4 and bonnet 6-3 separates by the present invention.Tapered sleeve frock can be used to assemble during brush holder assembling, when pulling down, by tapered sleeve plug to middle, the bad difficult problem reinstalled of brush carrier when motor is reprocessed can be solved.During machine operation, electric current is flowed out by battery positive voltage, electromagnetic switch B terminal 6-5 is arrived through connecting line, arrive electromagnetic switch M terminal 6-6 again, positive plate 4-8 is arrived by lug plate 4-7, lead-out wire 4-6, now electric current flows to rotor 2-1 by positive plate 4-8 and carbon brush 4-4Fen tri-road, then is converged to negative plate by rotor 2-1Fen tri-tunnel by three negative pole carbon brush 4-4, then flows to electric bottle negative pole through casing 6-1, protecgulum 6-8.Be riveted together because brush box adds tubular rivet 3-3 by positive plate 4-8 and negative plate 5-1, therefore positive plate 4-8 not only plays with negative plate 5-1 the effect being fixedly connected with brush carrier 4-1,4-3, and is all a part for current circuit.
Use the starter of prior art brush holder, constant in order to ensure the axial dimension of motor, rotor commutator rise piece 1-1 needs to protrude into conflux in bridge 1-5, and this just requires that rotor commutator rise piece 1-1 cylindrical can not do too large.After commutator riser 1-1 cylindrical reduces, rotor coil 1-7 and head time, many due to what shrink inward, be easy to early cause rotor insulation to damage (particularly 1-8 insulating end plate), and then occur short circuit or bonding phenomenon.
Brush carrier positive plate of the present invention adopts sheet metal to make, and it is simultaneously as the bridge that confluxes, and the whole height of such brush carrier shortens 5mm, and rotor commutator rise piece 2-4 size does not affect by brush carrier 2-2.Therefore can the rise piece of rotor commutator be done larger, reduce the difficulty that rotor makes.
This brush carrier is also of the present invention one large characteristic in the fixed form of motor internal.This brush carrier radial direction leans on the cylindrical of negative plate and motor stator casing inner stopper to coordinate location fixing, within the axiality 0.15mm of brush carrier and motor stator, rotor, the contact consistency of brush and commutator is good, the ripple current of motor 1000rpm is very little, common starter is general all between 10-15A, and using the ripple current of the motor of this brush holder all at below 5A, empty load of motor and load performance consistency there has also been large increase.Axially cover 6-3 rearward to be compressed by brush holder base plate 5-1 and casing 6-1, bonnet 6-3 is linked together by two through bolt 6-2 and protecgulum 6-8.Compared with traditional starter, first be economized two M5 × 8 screws, next also eliminates tight this procedure of brush holder screw when being motor assembling, not only can reduce costs (through measuring and calculating about 0.2 yuan), also improves the efficiency (can improve 8%-12% through measuring and calculating) of final assembly.
The useful life of brush brings up to current 250,000 times by original 50,000 times.Solve and ensure that constant, the common starter of overall dimension of motor upgrades to the problem of start and stop most critical.Improve the efficiency of final assembly simultaneously.
Claims (9)
1. an automobile starting motor brush carrier, is characterized in that, brush carrier is made up of positive plate assembly, negative plate assembly, and positive plate assembly and negative plate assembly are driven the rivets by pipe and be riveted together.
2. automobile starting motor brush carrier according to claim 1, wherein positive plate assembly is made up of positive plate, A brush carrier, B brush carrier, brush, brush spring, lug plate, lead-out wire, insulating sleeve.
3. automobile starting motor brush carrier according to claim 2, wherein lug plate and lead-out wire are welded together by silver-containing solder, insulating sleeve is set on lead-out wire, lead-out wire and positive plate are welded together by silver-containing solder, A brush carrier, B brush carrier and positive plate are driven the rivets by pipe and are riveted together, and lead-in wire and the positive plate of brush are welded together by silver-containing solder.
4. automobile starting motor brush carrier according to claim 2, wherein negative plate assembly is made up of negative plate, A brush carrier, B brush carrier, brush, brush spring.
5. automobile starting motor brush carrier according to claim 4, wherein A brush carrier, B brush carrier and negative plate are driven the rivets by pipe and are riveted together, and lead-in wire and the negative plate of brush are welded together by silver-containing solder.
6. automobile starting motor brush carrier according to claim 2, wherein positive plate adopts sheet metal to make, and it is simultaneously as the bridge that confluxes.
7. automobile starting motor brush carrier according to claim 4, its center brush brush box is riveted together by positive plate and negative plate and tubular rivet, and positive plate is fixedly connected with brush carrier with negative plate and forms a part for current circuit.
8. automobile starting motor brush carrier according to claim 1, wherein brush carrier and motor rear cover are independently arranged.
9. automobile starting motor brush carrier according to claim 4, wherein brush carrier coordinates location fixing radial through the cylindrical of negative plate and motor stator casing inner stopper, and brush holder base plate and casing are axially compressed by motor rear cover by brush carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215135.4A CN104882986B (en) | 2015-04-30 | 2015-04-30 | Automobile starting motor brush carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215135.4A CN104882986B (en) | 2015-04-30 | 2015-04-30 | Automobile starting motor brush carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104882986A true CN104882986A (en) | 2015-09-02 |
| CN104882986B CN104882986B (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215135.4A Expired - Fee Related CN104882986B (en) | 2015-04-30 | 2015-04-30 | Automobile starting motor brush carrier |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201138767Y (en) * | 2007-12-28 | 2008-10-22 | 锦州汉拿电机有限公司 | Electrical brush assembly for starter |
| CN101919142A (en) * | 2007-12-11 | 2010-12-15 | 霍夫曼电刷碳精股份公司 | Brush unit for an electric machine, spring and seal arrangement for the same, and method for the production thereof |
| CN102709772A (en) * | 2012-04-26 | 2012-10-03 | 锦州汉拿电机有限公司 | Carbon brush holder assembly for starter and assembling method thereof |
| CN103312073A (en) * | 2012-03-12 | 2013-09-18 | 罗伯特·博世有限公司 | Motor and motor-producing method |
-
2015
- 2015-04-30 CN CN201510215135.4A patent/CN104882986B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101919142A (en) * | 2007-12-11 | 2010-12-15 | 霍夫曼电刷碳精股份公司 | Brush unit for an electric machine, spring and seal arrangement for the same, and method for the production thereof |
| CN201138767Y (en) * | 2007-12-28 | 2008-10-22 | 锦州汉拿电机有限公司 | Electrical brush assembly for starter |
| CN103312073A (en) * | 2012-03-12 | 2013-09-18 | 罗伯特·博世有限公司 | Motor and motor-producing method |
| CN102709772A (en) * | 2012-04-26 | 2012-10-03 | 锦州汉拿电机有限公司 | Carbon brush holder assembly for starter and assembling method thereof |
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| CN104882986B (en) | 2015-12-02 |
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Granted publication date: 20151202 Termination date: 20160430 |