CN102457139A - Direct-current motor based on specific electric brush installation angle - Google Patents
Direct-current motor based on specific electric brush installation angle Download PDFInfo
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- CN102457139A CN102457139A CN2010105205635A CN201010520563A CN102457139A CN 102457139 A CN102457139 A CN 102457139A CN 2010105205635 A CN2010105205635 A CN 2010105205635A CN 201010520563 A CN201010520563 A CN 201010520563A CN 102457139 A CN102457139 A CN 102457139A
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- brush
- motor
- brush head
- reversing device
- angle
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Abstract
The invention relates to a direct-current motor based on a specific electric brush installation angle, which comprises a motor stator part and a rotor part, wherein the motor stator part is provided with a brush gear; the motor rotor part is provided with a reversing device; a brush head of the brush gear is in slide contact with the reversing device; and an included angle alpha between the brush head and a brush handle is 38 degrees. A welding spot of the brush head and a lead wire of the motor is formed through automatic welding, and rare earth materials are plated on reversing pieces of the reversing device and the brush head. According to the direct-current motor based on a specific electric brush installation angle, which is provided by the invention, the rare earth materials are plated on the reversing pieces of the reversing device and the brush head, so that the arc resistance of a reverser of a micromotor is improved, a main wear mechanism is converted from adhesive wear to abrasive wear, the phenomenon of abrasive dust collection in a groove is eliminated, and the reliability and the service life of the motor are remarkably improved; an automatic welding manner is adopted for the brush head and the lead wire of the motor, so that the probability of generation of crack of a plating layer of the motor is effectively reduced, and the manufacturing cost of the motor is reduced; and the included angle between the brush head and the brush handle selects an optimal angle, so that mechanical contact between the brush and the reversing device is favored, the mechanical loss is reduced to be minimum, the electrical contact performance is simultaneously improved, and the stability and the reliability of the product is improved.
Description
Technical field
The present invention relates to a kind of direct current machine, particularly a kind of direct current machine based on specific brush setting angle.
Background technology
Have in the brush direct current machine at great majority, brush all has brush wire (brush pigtail), relies on the effect of brush and brush wire (brush pigtail) that current/voltage is introduced or drawn, and is exactly to flow in the coil of armature through brush and commutator segment from the electric current of DC power supply.Yet in the brush welding process, run into the phenomenon of brush coating explosion through regular meeting, some motor manufacturing firms receive the restriction of various factors (like the scale of product, batch etc.); Do not adopt the automation welding manner, but adopt the conventional artificial welding operation mode, like this when the welding brush if the explosion of brush coating takes place; Eyes to operating personnel can damage; And after the explosion of brush coating came off, brush can not continue basically to use and scrap, and causes the motor manufacturing cost to increase.Therefore, must take measures necessary that the probability of brush coating generation explosion is reduced greatly.
Commutator segment and brush mainly bear the effect of live wearing and tearing and arc erosion in the course of the work.The wear mechanism of electrical micro-machine commutator and brush is main with adhesive wear, and with electricity ablation effect.The main cause that early stage short circuit is crashed is that the abrasive dust that the commutator segment surface produces is piled up in groove; The basic reason that abrasive dust is piled up then produces the melting welding effect that electric arc causes during the electric current switching-over.
In the brush direct current machine is arranged, the dynamo-electric junction surface of brush plate and commutator, its life-span directly influences the service efficiency of complete machine.About the setting angle problem of brush plate on electric motor end cap is the topic that the insider inquires into always.Generally between the 32-42 degree, the setting angle of brush plate is excessive for this angle, though electrical contact performance improves, can cause the quick wearing and tearing of brush plate and commutator;
The brush plate setting angle is too small, can cause to contact badly between brush plate and the commutator, and electrical contact performance is low, and conversion efficiency is poor.How brush plate is held with contacting of commutator is the current technical problem that will solve.
Summary of the invention
The purpose of this invention is to provide direct current machine, the brushgear of motor is carried out PROCESS FOR TREATMENT before welding, select specific setting angle during the brush plate assembling based on specific brush setting angle.Improve stability, reliability, the durability of product.
The objective of the invention is to realize like this: based on the direct current machine of specific brush setting angle; Comprise motor stator part and rotor portion; Motor stator partly is provided with brushgear, and rotor partly is provided with reversing arrangement, the brush of brushgear and reversing arrangement sliding contact;
The angle angle [alpha] of brush and brush holder is 38 °.
The solder joint of drawing lead of brush holder and motor constitutes through the automation welding.
Be coated with rare earth material on the commutator segment of reversing arrangement and the brush.
The present invention is based on the direct current machine of specific brush setting angle; Be coated with rare earth material on the commutator segment of reversing arrangement and the brush; Improved the arc resistant ability of electrical micro-machine commutator; Make its The main wear change abrasive wear into, eliminated the phenomenon that abrasive dust is assembled in the groove, significantly improved the reliability and the useful life of motor by adhesive wear.
The lead of drawing of brush holder and motor adopts the automation welding manner, reduces the probability of brush coating generation explosion effectively, reduces the motor manufacturing cost;
The angle angle Selection best angle of brush and brush holder helps the Mechanical Contact between brush and the reversing arrangement, and mechanical loss is reduced to minimum, improves electrical contact performance simultaneously again, improves stability, the reliability of product.
Description of drawings
Below in conjunction with accompanying drawing and instance the present invention is described further:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a brushgear structural representation of the present invention.
Embodiment
Based on the direct current machine of specific brush setting angle, comprise motor 1 stationary part and rotor portion, motor 1 stationary part is provided with brushgear 2, and motor 1 rotor portion is provided with reversing arrangement 3, the brush 4 and reversing arrangement 3 sliding contacts of brushgear 2;
Said brush holder 5 constitutes through the automation welding with the solder joint of drawing lead 6 of motor 1.
Be coated with rare earth material on the commutator segment of said reversing arrangement 3 and the brush 4.
Implementation step:
1.. the brush 4 and the brush holder 5 of brushgear 2 are bent in advance by an elastic sheet metal and constitute, and be as shown in Figure 2, and the brush 4 that the bending back forms is 38 ° with the angle angle [alpha] of brush holder 5.Brushgear 2 is embedded and is installed in motor 1 inside, and has certain elastic deformation, and brush 4 constitutes sliding contact with reversing arrangement 3.
2.. be coated with rare earth material on the commutator segment of reversing arrangement 3 and the brush 4, as contain the novel silver-based material of rare earth, constitute silver-colored palladium face.
3.. brushgear 2 is taked necessary PROCESS FOR TREATMENT before welding, be about to brushgear 2 and be placed in the about 100 ℃ baking oven of temperature 2 ~ 3 hours, and the moisture that inner electroplating residual of brushgear 2 or brushgear 2 are absorbed from air discharges internally fully.
4.. brushgear 2 leaves in the storehouse of dry place of comparison or National standard.
Claims (3)
1. based on the direct current machine of specific brush setting angle; Comprise motor (1) stationary part and rotor portion; It is characterized in that: motor (1) stationary part is provided with brushgear (2); Motor (1) rotor portion is provided with reversing arrangement (3), the brush (4) of brushgear (2) and reversing arrangement (3) sliding contact;
Brush (4) is 38 ° with the angle angle [alpha] of brush holder (5).
2. the direct current machine based on specific brush setting angle according to claim 1 is characterized in that: brush holder (5) constitutes through the automation welding with the solder joint of drawing lead (6) of motor (1).
3. the direct current machine based on specific brush setting angle according to claim 1 is characterized in that: be coated with rare earth material on the commutator segment of reversing arrangement (3) and the brush (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105205635A CN102457139A (en) | 2010-10-27 | 2010-10-27 | Direct-current motor based on specific electric brush installation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105205635A CN102457139A (en) | 2010-10-27 | 2010-10-27 | Direct-current motor based on specific electric brush installation angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102457139A true CN102457139A (en) | 2012-05-16 |
Family
ID=46039931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105205635A Pending CN102457139A (en) | 2010-10-27 | 2010-10-27 | Direct-current motor based on specific electric brush installation angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102457139A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112425048A (en) * | 2018-07-17 | 2021-02-26 | 施乐百有限公司 | Electric motor and ventilator with corresponding electric motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374602Y (en) * | 2009-02-26 | 2009-12-30 | 深圳市拓邦电子科技股份有限公司 | End cap assembly of brush direct current motor |
| US20100033053A1 (en) * | 2007-02-06 | 2010-02-11 | Ryoichi Kimura | Brush device for motor |
| CN101789668A (en) * | 2010-01-18 | 2010-07-28 | 深圳市双环全新机电股份有限公司 | Ultraminiature continuous current dynamo for facilitating commutator installation |
| CN201830095U (en) * | 2010-10-27 | 2011-05-11 | 宜昌飞鹰电子科技有限公司 | Direct current motor based on specific brush installation angle |
-
2010
- 2010-10-27 CN CN2010105205635A patent/CN102457139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100033053A1 (en) * | 2007-02-06 | 2010-02-11 | Ryoichi Kimura | Brush device for motor |
| CN201374602Y (en) * | 2009-02-26 | 2009-12-30 | 深圳市拓邦电子科技股份有限公司 | End cap assembly of brush direct current motor |
| CN101789668A (en) * | 2010-01-18 | 2010-07-28 | 深圳市双环全新机电股份有限公司 | Ultraminiature continuous current dynamo for facilitating commutator installation |
| CN201830095U (en) * | 2010-10-27 | 2011-05-11 | 宜昌飞鹰电子科技有限公司 | Direct current motor based on specific brush installation angle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112425048A (en) * | 2018-07-17 | 2021-02-26 | 施乐百有限公司 | Electric motor and ventilator with corresponding electric motor |
| CN112425048B (en) * | 2018-07-17 | 2024-05-28 | 施乐百有限公司 | Electric motor, ventilator and motor electronics for controlling an electric motor |
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Application publication date: 20120516 |