WO2019024034A1 - 一种电机碳刷 - Google Patents

一种电机碳刷 Download PDF

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Publication number
WO2019024034A1
WO2019024034A1 PCT/CN2017/095778 CN2017095778W WO2019024034A1 WO 2019024034 A1 WO2019024034 A1 WO 2019024034A1 CN 2017095778 W CN2017095778 W CN 2017095778W WO 2019024034 A1 WO2019024034 A1 WO 2019024034A1
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WO
WIPO (PCT)
Prior art keywords
carbon brush
copper
spring
sleeve
copper sleeve
Prior art date
Application number
PCT/CN2017/095778
Other languages
English (en)
French (fr)
Inventor
袁晓霞
Original Assignee
袁晓霞
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 袁晓霞 filed Critical 袁晓霞
Priority to PCT/CN2017/095778 priority Critical patent/WO2019024034A1/zh
Publication of WO2019024034A1 publication Critical patent/WO2019024034A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/38—Brush holders
    • H01R39/41—Brush holders cartridge type
    • H01R39/415—Brush holders cartridge type with self-recoiling spring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/14—Means for supporting or protecting brushes or brush holders

Definitions

  • the invention relates to the technical field of electric motors, and in particular to a motor carbon brush.
  • the carbon brush structure in the prior art is simple, and the carbon brush will slide out of the bracket during use, and the use is inconvenient.
  • Today's carbon brushes are all packaged in an integrated package, which is cumbersome to replace.
  • the carbon brush is a device for transmitting energy or signal between the fixed part of the motor or the generator and the transmission part.
  • the motor rotates, since the spring and the collector ring are respectively in contact with the two ends of the carbon brush, the distance is relatively long, so the current collection
  • the friction generated by the ring against the carbon brush is relatively large compared to the spring. After a long time of use, it is not conducive to the stability of the entire structure of the brush.
  • the brush line often loosens from the carbon brush body, causing the carbon brush to burn and affect the service life of the motor.
  • the invention provides a motor carbon brush, comprising a casing and a copper sleeve, wherein the casing has an annular groove therein, and the annular groove is provided with a first spring, the copper sleeve is disposed on the first spring, and the copper sleeve is disposed inside the copper sleeve
  • the carbon brush has a copper cover plate on the inner bottom of the casing, a copper stranded wire between the carbon brush and the copper cover plate, a shock absorbing piece on the bottom of the carbon brush, and a second spring on the outer part of the copper stranded wire.
  • the sidewall of the carbon brush is provided with a sliding slot
  • the inner wall of the copper sleeve is provided with a limiting slider that can slide in the sliding slot.
  • the bottom of the housing is notched, and the bottom of the notch is threaded with a bottom cover.
  • the motor carbon brush provided by the invention reduces the friction torque of the carbon brush by the first spring sleeved on the copper sleeve, ensures the stability of the whole structure, and increases the service life of the carbon brush.
  • the carbon brush is provided with a sliding slot, and a limiting block is arranged on the inner wall of the copper sleeve. Under the action of the limiting block, the carbon brush is not easy to fall off, and the carbon brush can slide up and down more smoothly.
  • FIG. 1 is a schematic structural view of a motor carbon brush according to the present invention.
  • FIG. 2 is a cross-sectional view of a motor carbon brush of the present invention.
  • the present invention provides a motor carbon brush comprising a housing 1 and a copper sleeve 2, wherein the housing 1 has an annular groove 11 therein, and the annular groove 11 is provided with a first spring 12,
  • the copper sleeve 2 is disposed on the first spring 12, and a baffle 21 extends outwardly from the top of the copper sleeve 2.
  • the bottom surface of the baffle 21 abuts against the top of the first spring 12.
  • the carbon sleeve 3 is provided with a carbon brush 3, and the side wall of the carbon brush 3 is provided with a sliding slot 4, and the inner wall of the copper sleeve 2 is provided with a limiting slider 5 which can slide in the sliding slot 4, for structural stability,
  • a chute can be further formed on the carbon brush 3 corresponding to the position of the chute 4, and a limit slider corresponding to the copper sleeve 2 is provided to form a double chute and a double limit slider.
  • a copper cover plate 13 is disposed on the inner bottom of the casing 1, and a copper strand 14 is disposed between the carbon brush 3 and the copper cover plate 13.
  • the bottom of the carbon brush 3 is provided with a shock absorbing sheet 31, and the shock absorbing sheet 31 passes through the adhesion agent.
  • the damping plate 31 can reduce the vibration of the motor during operation, thereby reducing the noise generated by the operation of the motor, improving the stability of the working of the motor and the service life.
  • the copper strand 14 is sleeved with a second spring 15, and the second spring 15 reduces the number of times the copper strand 14 is bent and increases its life.
  • the bottom of the casing 1 is provided with a notch 10, and the bottom cover 6 is screwed into the notch 10, and the replacement of the carbon brush can be completed only by the disassembly of the bottom cover 6, which is very convenient.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

一种电机碳刷，包括壳体（1）以及铜套（2），壳体（1）内开有环形凹槽（11），环形凹槽（11）内设有第一弹簧（12），铜套（2）穿设于第一弹簧（12），铜套（2）内穿设有碳刷（3），壳体（1）的内底部设有铜盖板（13），碳刷（3）与铜盖板（13）之间设有铜绞线（14），碳刷（3）的底部设有减震片（31），铜绞线（14）外部套设有第二弹簧（15）。上述电机碳刷，通过套设于铜套上的第一弹簧，减小了碳刷受到的摩擦力的力矩，保证了整个结构的稳定性，增长了碳刷的使用寿命，该碳刷上设有滑槽，且在铜套内壁上设有限位块，在限位块的作用下，碳刷不易脱落，且碳刷可以上下滑动更加顺畅。

Description

一种电机碳刷 技术领域
本发明涉及电机技术领域，具体涉及一种电机碳刷。
背景技术
现有技术中的碳刷结构简单，碳刷在使用过程中，碳刷会滑出支架掉落，使用不方便。现在的碳刷都是采用集成封装的，更换起来比较麻烦。碳刷是电动机或发电机的固定部分和传动部分之间传递能量或信号的装置，电机在转动时，由于弹簧和集电环分别与碳刷的两端接触，所以距离比较远，所以集电环对碳刷产生的摩擦力相对弹簧的力矩会比较大，长时间使用后，也不利于电刷整个结构的稳定。在生产过程中，常常发生刷辫线从碳刷本体上松脱，导致碳刷烧损，影响了电机的使用寿命。
发明内容
本发明的目的是提供一种电机碳刷，解决上述现有技术中的一个或者是多个。
本发明提供的一种电机碳刷，包括壳体以及铜套，壳体内开有环形凹槽，环形凹槽内设有第一弹簧，铜套穿设于第一弹簧，铜套内穿设有碳刷，壳体的内底部设有铜盖板，碳刷与铜盖板之间设有铜绞线，碳刷的底部设有减震片，铜绞线外部套设有第二弹簧。
在一些实施方式中，碳刷的侧壁上开有滑槽，铜套的内壁上设有可于滑槽内滑行的限位滑块。
在一些实施方式中，壳体的底部开有缺口，缺口内螺纹连接有底盖。
本发明提供的一种电机碳刷，通过套设于铜套上的第一弹簧，减小了碳刷受到的摩擦力的力矩，保证了整个结构的稳定性，增长了碳刷的使用寿命，该碳刷上设有滑槽，且在铜套内壁上设有限位块，在限位块的作用下，碳刷不易脱落，且碳刷可以上下滑动更加顺畅。
附图说明
图1为本发明一种电机碳刷的结构示意图；
图2为本发明一种电机碳刷的剖视图。
具体实施方式
本发明提供一种电机碳刷，下面结合附图和具体实施方式，对本发明作详细介绍：
如图1、2所示，本发明提供的一种电机碳刷，包括壳体1以及铜套2，壳体1内开有环形凹槽11，环形凹槽11内设有第一弹簧12，铜套2穿设于第一弹簧12，铜套2的顶部向外延伸有挡板21，挡板21的底面抵住第一弹簧12的顶部。铜套2内穿设有碳刷3，碳刷3的侧壁上开有滑槽4，铜套2的内壁上设有可于滑槽4内滑行的限位滑块5，为了结构稳定，可以在碳刷3上相对应于滑槽4的位置再开设一道滑槽，在铜套2上与之对应的设有限位滑块，组成双滑槽以及双限位滑块。壳体1的内底部设有铜盖板13，碳刷3与铜盖板13之间设有铜绞线14，碳刷3的底部贴设有减震片31，减震片31通过粘连剂粘贴于碳刷3的底面，减震片31能减小电机工作时的震动，从而减小电机工作产生的噪音，提高电机工作的稳定性和使用的寿命。铜绞线14外部套设有第二弹簧15，第二弹簧15减少铜绞线14弯折的次数，增加其寿命。壳体1的底部开有缺口10，缺口10内螺纹连接有底盖6，只需通过底盖6的拆卸就能完成对碳刷的更换，非常方便。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (3)

  1. 一种电机碳刷，其特征在于，包括壳体(1)以及铜套(2)，所述壳体(1)内开有环形凹槽(11)，所述环形凹槽(11)内设有第一弹簧(12)，所述铜套(2)穿设于所述第一弹簧(12)，所述铜套(2)内穿设有碳刷(3)，所述壳体(1)的内底部设有铜盖板(13)，所述碳刷(3)与所述铜盖板(13)之间设有铜绞线(14)，所述碳刷(3)的底部设有减震片(31)，所述铜绞线(14)外部套设有第二弹簧(15)。
  2. 根据权利要求1所述的一种电机碳刷，其特征在于，所述碳刷(3)的侧壁上开有滑槽(4)，所述铜套(2)的内壁上设有可于所述滑槽(4)内滑行的限位滑块(5)。
  3. 根据权利要求1所述的一种电机碳刷，其特征在于，所述壳体(1)的底部开有缺口(10)，所述缺口(10)内螺纹连接有底盖(6)。
PCT/CN2017/095778 2017-08-03 2017-08-03 一种电机碳刷 WO2019024034A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114665352A (zh) * 2022-03-22 2022-06-24 徐州恒巨机电科技有限公司 一种集电器防变形装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750585B2 (en) * 2002-10-25 2004-06-15 Korea Delphi Automotive Systems Corporation Brush assembly of alternator for vehicle having improved brush and wiring to prevent lead wire interference during brush extraction and retraction
US20060145564A1 (en) * 2005-01-06 2006-07-06 Taiwan Long Hawn Enterprise Co. Motor carbon brush assembly
CN201360095Y (zh) * 2008-07-04 2009-12-09 广东电动工具厂有限公司 一种角磨机上的碳刷装置
CN204334180U (zh) * 2015-01-09 2015-05-13 常州杨氏电机有限公司 新型碳刷电机
CN205488942U (zh) * 2016-04-12 2016-08-17 南通凯迪碳业有限公司 一种碳刷

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750585B2 (en) * 2002-10-25 2004-06-15 Korea Delphi Automotive Systems Corporation Brush assembly of alternator for vehicle having improved brush and wiring to prevent lead wire interference during brush extraction and retraction
US20060145564A1 (en) * 2005-01-06 2006-07-06 Taiwan Long Hawn Enterprise Co. Motor carbon brush assembly
CN201360095Y (zh) * 2008-07-04 2009-12-09 广东电动工具厂有限公司 一种角磨机上的碳刷装置
CN204334180U (zh) * 2015-01-09 2015-05-13 常州杨氏电机有限公司 新型碳刷电机
CN205488942U (zh) * 2016-04-12 2016-08-17 南通凯迪碳业有限公司 一种碳刷

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114665352A (zh) * 2022-03-22 2022-06-24 徐州恒巨机电科技有限公司 一种集电器防变形装置

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