CN202872144U - Brush assembly and brush used for flat vibration motor - Google Patents
Brush assembly and brush used for flat vibration motor Download PDFInfo
- Publication number
- CN202872144U CN202872144U CN 201220583569 CN201220583569U CN202872144U CN 202872144 U CN202872144 U CN 202872144U CN 201220583569 CN201220583569 CN 201220583569 CN 201220583569 U CN201220583569 U CN 201220583569U CN 202872144 U CN202872144 U CN 202872144U
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- brush
- vibration motor
- flat vibration
- strip
- shell fragment
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Abstract
The utility model discloses a brush assembly and a brush used for a flat vibration motor. The brush includes a horizontal bottom sheet which is welded on a circuit board. A bent elastic sheet is fixed on the bottom sheet. A free end of the elastic sheet is bent to form a contact which is pressed against a rotor communtator face of the flat vibration motor. The elastic sheet is strip-like, and a bent part is arc-shaped. The bent part of the elastic sheet is provided with a plurality of strip-shaped through holes. The lengthwise direction of the through holes is consistent with the lengthwise direction of the elastic sheet. The brush adopts the arc bent structure, and the bent part is provided with the strip-shaped through hole, so the effective length of a bent arm is increased, the elasticity of the brush is greatly improved, the friction force between the rotor communtator face and the brush is reduced, the stable and reliable contact resistance is guaranteed, and the motor service lifetime is greatly prolonged.
Description
Technical field
The utility model relates to vibrating motor, is specifically related to brush assembly of electric and brush that flat vibration motor is used.
Background technology
Arriving along with the smart mobile phone epoch, flat vibration motor uses wherein more and more, but the flat motor reasons such as wide and commutator segment number is many owing to the brush spacing, life-span is always low than cylinder hollow cup motor, cylinder core vibration motor and linear vibration motor, does not satisfy smart mobile phone to vibrating variation, high-frequency instructions for use.
Although the brush that traditional flat vibration motor is used also is bending structure, the elasticity of brush does not reach optimum state, and useful life is short.
The utility model content
Technical problem to be solved in the utility model is that to solve the brush elasticity that flat vibration motor uses not high, the problem that the life-span is short.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts provides the brush that a kind of flat vibration motor is used, what comprise a level is used for being welded in egative film on the circuit board, be fixed with the shell fragment of a bending on the described egative film, the free end of described shell fragment is bent to form the contact on the commutator armature face that is resisted against flat vibration motor, described shell fragment is that strip and its bending place are arc, the bending place of described shell fragment has the through hole of several strips, and the length direction of described through hole and shell fragment is consistent.
In the brush that above-mentioned flat vibration motor is used, described egative film is strip, and the top margin of described shell fragment is opposite with the bearing of trend of described egative film.
In the brush that above-mentioned flat vibration motor is used, be arranged side by side before and after the base of described shell fragment and the described egative film.
In the brush that above-mentioned flat vibration motor is used, described contact bending is arc, has the notch of strip on the described contact, and described notch is two.
In the brush that above-mentioned flat vibration motor is used, described through hole is one.
The brush assembly of electric that the utility model also provides a kind of flat vibration motor to use comprises two aforesaid brushes, be arranged symmetrically with before and after two described brushes and the overbending direction of its contact opposite.
In the brush assembly of electric that above-mentioned flat vibration motor is used, the distance between two described brushes is 2.6～3.5mm.
In the brush assembly of electric that above-mentioned flat vibration motor is used, a plurality of described brush assembly of electric are fixed on before installation on the strip of strip and are uniform along its length direction.
In the brush assembly of electric that above-mentioned flat vibration motor is used, be fixed with 16～30 described brush assembly of electric on each described strip.
The brush assembly of electric that the flat vibration motor that the utility model provides is used and brush thereof, adopted the curved bend folded structure, and the bending place has the through hole of strip, increased the effective length of bent over arms, greatly improved the elasticity of brush, thereby reduced the frictional force between commutator armature face and brush, guaranteed reliable and stable contact resistance, significantly improved the life-span of motor.
Description of drawings
The structural representation of the brush assembly of electric that Fig. 1 provides for the utility model;
The arrangement schematic diagram of the brush assembly of electric on the strip that Fig. 2 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As shown in Figure 1, the brush that the flat vibration motor that the utility model provides is used comprises the egative film 1 of a level, and egative film 1 is strip.Egative film 1 is welded on the circuit board, is fixed with the shell fragment 2 of a bending on the egative film 1, and the top margin 24 of shell fragment 2 is opposite with the bearing of trend of egative film 1, and base 25 and egative film 1 front and back of shell fragment 2 are arranged side by side.Shell fragment 2 is that strip and its bending place are arc, and the bending place of shell fragment 2 has the through hole 22 of a strip, and through hole 22 is consistent with the length direction of shell fragment 2.
The free end of shell fragment 2 is bent to form contact 21, and contact 21 is resisted against on the commutator armature face of flat vibration motor, and contact 21 bendings are arc, have the notch 23 of two strips on the contact 21.
The brush that the utility model provides uses with the form of assembly in use, namely on the commutator armature face of a flat vibration motor against two brushes are arranged, form the brush assembly of electric that flat vibration motor is used.
Be arranged symmetrically with before and after two brushes in the brush assembly of electric and the overbending direction of its contact 21 opposite, i.e. upwards bending of contact 21, another contact 21 bends downwards.Distance between two brushes is 2.6～3.5mm.
A plurality of brush assembly of electric are fixed on before installation on the strip 3 of strip and are uniform along its length direction, are fixed with 16～30 brush assembly of electric in the present embodiment on each strip 3.Brush assembly of electric is fixed on before installation on the strip 3 of strip, the welding when being convenient to install, and behind brush and the welding circuit board, strip 3 goes out of use.The utility model uses cold-punching mould machine-shaping, use be the compound strip of noble metal, strip 3 thickness are 0.025～0.045mm, the noble metal on the strip 3 should be located at the connecting point position of brush egative film 1 when Design of Dies.
The brush that the utility model provides is mainly used in micro flat vibration motor, and major function is that iontophoresis that the outside is introduced is in rotor, along with the rotation of rotor changes the sense of current in the rotor coil.Brush forms egative film 1 and FPCB(flexible print wiring board by the bending of the elastomeric copper alloy of a slice) on pad corresponding, and with the tin cream welding, the contact 21 of shell fragment 2 contact with the hard substrate commutator face of rotor, is used for conducting electricity.
The flat motor that the utility model is used includes but not limited to following specification: 1234 (diameter phi 12mm, height 3.4mm), 1230 (diameter phi 12mm, height 3.0mm), 1227 (diameter phi 12mm, height 2.7mm), 1034 (diameter phi 10mm, height 3.4mm), 1030 (diameter phi 10mm, height 3.0mm), 1027 (diameter phi 10mm, height 2.7mm), 1020 (diameter phi 10mm, height 2.0mm), 0934 (diameter phi 9mm, height 3.4mm), 0930 (diameter phi 9mm, height 3.0mm), 0927 (diameter phi 9mm, height 2.7mm), 0920 (diameter phi 9mm, height 2.0mm), 0834 (diameter phi 8mm, height 3.4mm), 0830 (diameter phi 8mm, height 3.0mm), 0827 (diameter phi 8mm, height 2.7mm), 0820 (diameter phi 8mm, height 2.0mm).
The brush that the flat vibration motor that the utility model provides is used has adopted the curved bend folded structure, and the bending place has the through hole 22 of strip, increased the effective length of bent over arms, reduced the coefficient of stiffiness of bending, greatly improved the elasticity of brush, guaranteed that the contact 21 of brush still keeps preferably elastic force in larger fluctuation range.This brush guarantees in the motor operation process at contact 21 positions reliable stable contact resistance has been arranged, and has greatly reduced the generation of spark, has reduced the scaling loss of commutator armature face and contact 21, the life-span of having improved motor; Larger elasticity has reduced again the contact force of brush and commutator face simultaneously, reduces the frictional force between commutator armature face and brush, has improved the durability of brush and commutator armature face, the life-span of having improved motor.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (9)
1. the brush used of flat vibration motor, what comprise a level is used for being welded in egative film on the circuit board, be fixed with the shell fragment of a bending on the described egative film, the free end of described shell fragment is bent to form the contact on the commutator armature face that is resisted against flat vibration motor, it is characterized in that, described shell fragment is that strip and its bending place are arc, and the bending place of described shell fragment has the through hole of several strips, and the length direction of described through hole and shell fragment is consistent.
2. the brush used of flat vibration motor as claimed in claim 1 is characterized in that described egative film is strip, and the top margin of described shell fragment is opposite with the bearing of trend of described egative film.
3. the brush used of flat vibration motor as claimed in claim 1 is characterized in that, is arranged side by side before and after the base of described shell fragment and the described egative film.
4. the brush used of flat vibration motor as claimed in claim 1 is characterized in that, described contact bending is arc, has the notch of strip on the described contact, and described notch is two.
5. the brush used of flat vibration motor as claimed in claim 1 is characterized in that described through hole is one.
6. the brush assembly of electric used of flat vibration motor comprises two such as claim 1 to 5 each described brush, be arranged symmetrically with before and after two described brushes and the overbending direction of its contact opposite.
7. the brush assembly of electric used of flat vibration motor as claimed in claim 6 is characterized in that, the distance between two described brushes is 2.6～3.5mm.
8. the brush assembly of electric used of flat vibration motor as claimed in claim 6 is characterized in that, a plurality of described brush assembly of electric are fixed on before installation on the strip of strip and are uniform along its length direction.
9. the brush assembly of electric used of flat vibration motor as claimed in claim 8 is characterized in that, is fixed with 16～30 described brush assembly of electric on each described strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583569 CN202872144U (en) | 2012-11-07 | 2012-11-07 | Brush assembly and brush used for flat vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583569 CN202872144U (en) | 2012-11-07 | 2012-11-07 | Brush assembly and brush used for flat vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872144U true CN202872144U (en) | 2013-04-10 |
Family
ID=48038835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583569 Expired - Fee Related CN202872144U (en) | 2012-11-07 | 2012-11-07 | Brush assembly and brush used for flat vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872144U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186820A (en) * | 2015-08-13 | 2015-12-23 | 青岛海信移动通信技术股份有限公司 | Flat motor and mobile terminal |
| WO2018036399A1 (en) * | 2016-08-26 | 2018-03-01 | 杨健勃 | Slip ring and slip ring processing technique |
| CN114069361A (en) * | 2020-07-31 | 2022-02-18 | 四川安和精密电子电器股份有限公司 | Production process of electric brush assembly, electric brush assembly and electric brush unit |
| CN117060632A (en) * | 2023-10-08 | 2023-11-14 | 中国船舶集团有限公司第七〇七研究所 | Brush structure for an electric machine |
-
2012
- 2012-11-07 CN CN 201220583569 patent/CN202872144U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186820A (en) * | 2015-08-13 | 2015-12-23 | 青岛海信移动通信技术股份有限公司 | Flat motor and mobile terminal |
| CN105186820B (en) * | 2015-08-13 | 2017-12-26 | 青岛海信移动通信技术股份有限公司 | Flat motor and mobile terminal |
| WO2018036399A1 (en) * | 2016-08-26 | 2018-03-01 | 杨健勃 | Slip ring and slip ring processing technique |
| CN114069361A (en) * | 2020-07-31 | 2022-02-18 | 四川安和精密电子电器股份有限公司 | Production process of electric brush assembly, electric brush assembly and electric brush unit |
| CN114069361B (en) * | 2020-07-31 | 2024-01-05 | 四川安和精密电子电器股份有限公司 | Production process of electric brush assembly, electric brush assembly and electric brush unit |
| CN117060632A (en) * | 2023-10-08 | 2023-11-14 | 中国船舶集团有限公司第七〇七研究所 | Brush structure for an electric machine |
| CN117060632B (en) * | 2023-10-08 | 2023-12-19 | 中国船舶集团有限公司第七〇七研究所 | Brush structure for an electric machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20201107 |