CN206547032U - A kind of metal brush carrier ultrasonic bonding motor - Google Patents
A kind of metal brush carrier ultrasonic bonding motor Download PDFInfo
- Publication number
- CN206547032U CN206547032U CN201720267766.5U CN201720267766U CN206547032U CN 206547032 U CN206547032 U CN 206547032U CN 201720267766 U CN201720267766 U CN 201720267766U CN 206547032 U CN206547032 U CN 206547032U
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- CN
- China
- Prior art keywords
- brush carrier
- motor
- brush
- casing
- ultrasonic bonding
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- 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.)
- Expired - Fee Related
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Abstract
The technical scheme of utility model is a kind of metal brush carrier ultrasonic bonding motor, including motor plastic end cover, rotor assembly, casing, magnetic shoe, conducting strip, brush carrier, spring and brush are provided with the motor plastic end cover, the brush carrier is metal brush carrier, brush carrier both sides are provided with brush carrier briquetting, brush carrier is formed by brush carrier briquetting as inserts with motor plastic end cover using ultrasonic bonding, and the magnetic shoe is fixed in casing by the form inserting of inserted sheet.The problem of plastics brush carrier expands with heat and contract with cold before the utility model is solved, can allow the gap of brush and brush carrier suitably to reduce, it is possible to reduce bounce of the brush in brush carrier, reduce the noise of motor, the heat transfer of brush can be accelerated, the service life of brush is improved, after metal brush carrier, the sectional area of brush than originally improves more than 40%, length increase by more than 30%, substantially increases the life-span of motor, is fixed additionally by ultrasonic bonding, technique is simple, and fixed form is reliable and stable.
Description
Technical field
The utility model is related to a kind of motor, more particularly, to a kind of metal brush carrier ultrasonic bonding motor.
Background technology
Brush is widely used in various double current generators, synchronous motor, storage battery dc motor, crane motor current collection
Ring, various electric welding machine etc..By spring handle, it is pressed in rotating shaft brush in brush carrier, when motor is rotated, electricity
Electric energy is conveyed to coil by brush by phase changer, therefore brush is the critical component in motor.At present, brush carrier is typically and motor side
Separately manufactured or integrated injection molding is covered, separately manufactured cost is very high, process cumbersome, it has not been convenient to during motor manufacturing
Installation, and easily produce noise；And brush carrier and electric motor end cap integrated injection molding, such benefit be it is easily manufactured, into
This is low, but has a problem that, exactly when motor is running at high speed, can produce substantial amounts of heat, easily causes plastic bruss
Hold heated, brush carrier, which expands with heat and contract with cold, produces the change of inside dimension, easily blocks brush, causes motor inoperative, while motor exists
Brush can be caused to be in the condition of high temperature when running at high speed, the brush of high temperature has the risk for melting plastics brush carrier.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of metal brush carrier ultrasonic bonding motor, moulded before solving
The problem of material brush carrier expands with heat and contract with cold, can allow the gap of brush and brush carrier suitably to reduce, it is possible to reduce brush is in brush carrier
Interior bounce, reduces the noise of motor, can accelerate the heat transfer of brush, the service life of brush be improved, using metal
After brush carrier, the sectional area of brush improves more than 40% than original, and length increase by more than 30% substantially increases the life-span of motor,
Additionally by the conducting strip of ultrasonic bonding fixed brush whip, technique is simple, and fixed form is reliable and stable.
The technical solution of the utility model is a kind of metal brush carrier ultrasonic bonding motor, including motor plastic end cover, is turned
Conducting strip, brush carrier, spring and brush are provided with sub-component, casing, magnetic shoe, the motor plastic end cover, the brush carrier is gold
Belong to brush carrier, brush carrier both sides are provided with brush carrier briquetting, and brush carrier is as inserts by brush carrier briquetting and motor plastic end cover using ultrasound
Ripple is welded, and the magnetic shoe is fixed in casing by the form inserting of inserted sheet.
It is preferred that, rotary shaft one end of the rotor assembly is arranged on motor plastic end cover by ball bearing and bearing holder (housing, cover)
At inwall central recess, the rotary shaft other end of the rotor assembly is arranged on the center of casing by ball bearing and bearing holder (housing, cover)
In hole, rotary shaft end is passed outside casing.
It is preferred that, the casing mounting surface is along the circumferential direction evenly equipped with the lug stretched out, the lug and is provided with
Rivet hole and rivet, the motor plastic end cover is corresponding with casing mounting surface and is provided with the rivet hole being adapted with rivet.
It is preferred that, the spring is nest spring.
It is preferred that, the casing thickness is 2mm.
The problem of plastics brush carrier expands with heat and contract with cold before the utility model is solved, can make it that the gap of brush and brush carrier can
Suitably to reduce, it is possible to reduce bounce of the brush in brush carrier, the noise of motor is reduced, the heat transfer of brush can be accelerated,
The service life of brush is improved, after metal brush carrier, the sectional area of brush improves more than 40%, length increase by 30% than original
More than, the life-span of motor is substantially increased, is fixed additionally by ultrasonic bonding, technique is simple, and fixed form is reliable and stable.
Brief description of the drawings
Fig. 1 is overall structure diagrammatic cross-section of the present utility model；
Fig. 2 is Fig. 1 decomposition texture schematic diagram；
Fig. 3 is the front view of the utility model casing side；
Fig. 4 is the structural representation after motor plastic end cover, brush carrier, brush carrier briquetting ultrasonic bonding in the utility model；
Fig. 5 shows the structural representation of a brush for motor plastic end cover part in the utility model；
Wherein：1-motor plastic end cover；2-rotor assembly；3-casing；4-magnetic shoe；5-conducting strip；6-brush carrier；
7-spring；8-brush；9-brush carrier briquetting；10-ball bearing；11-bearing holder (housing, cover)；12-lug；13-rivet.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
As shown in Figures 1 to 5, a kind of metal brush carrier ultrasonic bonding motor, including motor plastic end cover 1, rotor assembly
2nd, conducting strip 5, brush carrier 6, spring 7 and brush 8 are provided with casing 3, magnetic shoe 4, the motor plastic end cover 1, the brush carrier 6 is
Metal brush carrier, the both sides of brush carrier 6 are provided with brush carrier briquetting 9, and brush carrier 6 is adopted as inserts by brush carrier briquetting 9 with motor plastic end cover 1
Formed with ultrasonic bonding, the inserting of magnetic shoe 4 is fixed in casing 3.Magnetic shoe 4 is arranged on machine using the elastic inserted sheet of high intensity
In shell 3, it is to avoid original because magnetic shoe mounting bracket and motor plastic end cover 1 disjunctor, rather than be close to casing 3 and produce gap,
Leakage field and vibration produce noise the problem of, improve the efficiency of motor, it also avoid motor operating when high temperature so that plastics magnetic shoe
The problems such as softening and deformation of support and risk, in addition the structure of magnetic shoe inserted sheet avoid magnetic shoe or so activity possibility.
It is preferred that, rotary shaft one end of the rotor assembly 2 is moulded by ball bearing 10 and bearing holder (housing, cover) 11 installed in motor
Expect at the inwall central recess of end cap 1, reinforcement is provided with the inwall central recess of motor plastic end cover 1, the rotor assembly 2
The rotary shaft other end is arranged in the centre bore of casing 3 by ball bearing 10 and bearing holder (housing, cover) 11, and rotary shaft end passes casing 3
Outside.From ball bearing 10 and bearing block 11, for oiliness bearing before, the use longevity of motor is substantially increased
Life, is set after bearing holder (housing, cover) 11, reduces rotor assembly and slightly shakes the resonance produced to rear end cap, reduces making an uproar for whole motor
Sound, while bearing block 11 produces damage when can be prevented effectively from riveter casing tech to bearing, and compensate for a certain extent
Influence of the nonconcentricity of casing to motor, adds the sealing of motor so that production and assembling motor become more convenient,
Substantially increase productivity effect.Reinforcement is set in the bearing installation place of the inwall central recess of motor plastic end cover 1 in addition, is used to
Increase the intensity of motor plastic end cover, it is to avoid end cap is damaged in position of bearings.
It is preferred that, the mounting surface of casing 3 is along the circumferential direction evenly equipped with the lug 12 stretched out, the lug 12 and set
It is equipped with rivet hole and rivet 13, the motor plastic end cover 1 is corresponding with the mounting surface of casing 3 and is provided with and is adapted with rivet 13
Rivet hole.Increase at motor case and motor plastic end cover when rivet hole is installed and squeeze into rivet so that positioning is more accurate
Reliably, it is to avoid the loosening of front and rear casing and influence the sealing of motor.
It is preferred that, the spring 7 is nest spring.Original single armed bungee is changed to nest spring, it is to avoid former spring is easily slided
Go out the risk of brush, while avoiding high temperature brush when motor runs at high speed so that becoming inelastic wind after spring arm annealing
Danger, it also avoid spring arm and slides limitation brush length in motor rear end, the spring of high temperature during motor operating is it also avoid in addition
Melt spring plastics fixed column, cause spring by the risk of card.
It is preferred that, the thickness of casing 3 is 2mm.Casing thickness is changed into 2mm from original 1mm, it is possible to reduce motor
Leakage field, is conducive to the performance of motor.
It is described above, only it is better embodiment of the present utility model, not makees any formal limit to utility model
System, it is every according to technical principle of the present utility model to any simple modification made for any of the above embodiments, equivalent variations or modification,
In the range of still falling within technical solutions of the utility model.
Claims (5)
1. a kind of metal brush carrier ultrasonic bonding motor, including motor plastic end cover（1）, rotor assembly（2）, casing（3）, magnetic shoe
（4）, the motor plastic end cover（1）On be provided with conducting strip（5）, brush carrier（6）, spring（7）And brush（8）, it is characterised in that：
The brush carrier（6）For metal brush carrier, brush carrier（6）Both sides are provided with brush carrier briquetting（9）, brush carrier（6）Pass through brush carrier pressure as inserts
Block（9）With motor plastic end cover（1）Formed using ultrasonic bonding, the magnetic shoe（4）It is fixed on by the form inserting of inserted sheet
Casing（3）It is interior.
2. a kind of metal brush carrier ultrasonic bonding motor according to claim 1, it is characterised in that：The rotor assembly
（2）Rotary shaft one end pass through ball bearing（10）With bearing holder (housing, cover)（11）Installed in motor plastic end cover（1）Inwall central recess
Place, the rotor assembly（2）The rotary shaft other end pass through ball bearing（10）With bearing holder (housing, cover)（11）Installed in casing（3）In
In heart hole, rotary shaft end passes casing（3）Outside.
3. a kind of metal brush carrier ultrasonic bonding motor according to claim 1, it is characterised in that：The casing（3）Peace
Dress face is along the circumferential direction evenly equipped with the lug stretched out（12）, the lug（12）Place is provided with rivet hole and rivet（13）,
The motor plastic end cover（1）With casing（3）Mounting surface is corresponding and is provided with and rivet（13）The rivet hole being adapted.
4. a kind of metal brush carrier ultrasonic bonding motor according to claim 1, it is characterised in that：The spring（7）For
Nest spring.
5. a kind of metal brush carrier ultrasonic bonding motor according to claim 1, it is characterised in that：The casing（3）It is thick
Spend for 2mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720267766.5U CN206547032U (en) | 2017-03-20 | 2017-03-20 | A kind of metal brush carrier ultrasonic bonding motor |
| US15/926,945 US11025126B2 (en) | 2017-03-20 | 2018-03-20 | Brushed DC motor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720267766.5U CN206547032U (en) | 2017-03-20 | 2017-03-20 | A kind of metal brush carrier ultrasonic bonding motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206547032U true CN206547032U (en) | 2017-10-10 |
Family
ID=59996233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720267766.5U Expired - Fee Related CN206547032U (en) | 2017-03-20 | 2017-03-20 | A kind of metal brush carrier ultrasonic bonding motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206547032U (en) |
-
2017
- 2017-03-20 CN CN201720267766.5U patent/CN206547032U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |