CN101651380A - Plastic bracket structure of motor with replaceable carbon brush - Google Patents
Plastic bracket structure of motor with replaceable carbon brush Download PDFInfo
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- CN101651380A CN101651380A CN200910171718A CN200910171718A CN101651380A CN 101651380 A CN101651380 A CN 101651380A CN 200910171718 A CN200910171718 A CN 200910171718A CN 200910171718 A CN200910171718 A CN 200910171718A CN 101651380 A CN101651380 A CN 101651380A
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- carbon brush
- brush
- spring
- motor
- plug terminal
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Abstract
The invention discloses a plastic bracket structure of a motor with a replaceable carbon brush, belonging to the technical field of motor parts and comprising two fully symmetrical external small cavities, wherein a plastic column, a brush box, a carbon brush spring, a carbon brush assembly and a terminal assembly are arranged in the small cavities; the carbon brush spring is located on the plastic column; the carbon brush assembly comprises a carbon brush, a brush cord and an insertion spring, and the tail part of the brush cord is fixedly connected with the insertion spring; the terminal assembly comprises a brush box bottom board, a plug terminal, a plug terminal connection hole and a lead, and the insertion spring of the carbon brush assembly is in splicing connection with the plug terminal of the terminal assembly; the terminal assembly is linked with the plastic bracket by a riveted way; the carbon brush spring is a constantforce spring, the contact part of the carbon spring andthe bottom of the carbon brush is in an arc shape; and the lead is in pressure welding connection with the plug terminal connection hole. The invention has the advantages that the carbon brush assembly can be rapidly replaced through inserting and pulling the insertion spring; the constantforce spring has stable effective force and no angle change after abrasion, can reduce the commutation spark and prolong the service life of the motor; the lead is in pressure welding connection with the plug terminal, thereby ensuring the connection intensity and keeping favorable conductivity.
Description
Technical field
The present invention relates to a kind of plastic bracket structure of motor, particularly relate to a kind of plastic bracket structure of motor of replaceable carbon brush, belong to the motor component technical field.
Background technology
In the market, equipment such as professional direct current electric power tools are to the use and the more and more higher requirement of life-span proposition of used motor.Two kinds of versions commonly used can not satisfy client's instructions for use fully on the market:
Structure 1: be illustrated in figure 1 as beryllium copper sheet brush holder structure commonly used, the beryllium-bronze sheet brush holder of this structure by motor internal be carbon brush fixedly, and is connected with external terminal, and the beryllium-bronze sheet brush holder while also is a spring, can apply elastic force to carbon brush, it is touched on the commutator.The characteristics of this structure are: volume is little, compact conformation.Shortcoming is: 1. the beryllium-bronze sheet is to change by angle to apply elastic force to commutator, so motor is in the process of end-of-life of starting working, the angle and the elastic force of carbon brush change, corresponding with it is motor performance is being also along with the variation of carbon brush angle is changing, and is unfavorable for the stable of the rotating speed of motor and performance.2. after carbon brush had worn and torn, brush holder can continue to provide electricity, has worn and torn up to the beryllium-bronze brush holder, and carbon brush can't be changed.3. connect by bayonet socket between carbon brush and beryllium-bronze sheet brush holder, it is unreliable to contact, and when overload, because electric current contact-making surface density is too big, easily makes the beryllium-bronze local overheating, and elastic force reduces, even the brush holder fracture, influences the motor overload ability.In the less motor of volume, adopt this built-in carbon brush component structure more.
Structure 2: the compression spring structure, compare with structure 1, the compression spring structure can guarantee carbon brush in use, the carbon brush angle remains unchanged, motor in use, motor performance can remain unchanged.But the shortcoming of this motor is: 1. along with carbon brush wearing and tearing in the motor use shorten, spring is stretched out, the length lengthening, acting force of the spring will diminish, and carbon brush wearing and tearing back angle is changed, and increase commutation spark, had a strong impact on electrical machinery life, motor performance will reduce; 2. the compression spring needs a bigger initial length usually, has increased axial length, and use can cause reducing of carbon brush length in the small size motor, causes the life-span of a secondary carbon brush can not satisfy requirement of client.It is built-in that carbon brush mostly is, and generally adopts this structure in the bigger motor of volume.
The built-in carbon brush component beryllium copper of this employing chip architecture, in assembling process, must first assemble carbon brush assemblies, refilling mates horses reaches, and phenomenon such as carbon brush is easily produced burst apart or get loose.
Summary of the invention
The objective of the invention is defective at above-mentioned prior art, a kind of plastic bracket structure of motor of replaceable carbon brush is provided, can change the carbon brush that has worn and torn easily, but stabilizing spring active force, can prolong electrical machinery life, can guarantee the contact reliability of conducting element, phenomenon such as can avoid carbon brush easily to produce bursting apart or get loose.
The technical scheme taked of the present invention is to achieve these goals: a kind of plastic bracket structure of motor of replaceable carbon brush, comprise and mould support, brush box, plastic cylinder, brush holder spring, carbon brush component and terminal assemblies, moulding the support both sides, design has two outside little die cavities of symmetry fully, plastic cylinder, brush box, brush holder spring, carbon brush component and terminal assemblies are arranged in the little die cavity, plastic cylinder is arranged on little die cavity one side vertically upward, and brush holder spring is mounted on the plastic cylinder and locatees; Carbon brush component comprises carbon brush, brush pigtail and slotting spring, and the head of brush pigtail is fixedlyed connected with carbon brush, and the afterbody of brush pigtail is fixedlyed connected with slotting spring; Terminal assemblies comprises brush box bottom board, plug terminal, plug terminal connecting hole and lead, and plug terminal is fixedlyed connected with brush box bottom board with the plug terminal connecting hole; The plug terminal of insertion spring and terminal assemblies is socket connection.Terminal assemblies by riveted way with mould support and connect.
Described brush holder spring adopts the constant force torsion spring.
Described constant force torsion spring and contact position, carbon brush bottom are circular shape.
The afterbody of described brush pigtail and slotting spring are for being welded to connect.
Described lead is in the plug terminal connecting hole, and lead is that pressure welding is connected with the plug terminal connecting hole.
The described bracket edge of moulding near plastic cylinder is a circular shape.
Compared with prior art, the invention has the beneficial effects as follows:
(1) structure is unique compact, is moulding the support both sides, and design has two outside little die cavities of symmetry fully, and brush box, plastic cylinder, brush holder spring, carbon brush component and terminal assemblies are arranged in the little die cavity, and this structure extremely is convenient to the replacing of carbon brush component;
(2) the new carbon brush component of fast changeable is after old carbon brush has ground, as long as extract slotting spring, pull out brush holder spring, can take out old carbon brush component, again the carbon brush of new carbon brush component be put into brush box, simultaneously, brush holder spring is put back to original position, slotting spring is inserted on the plug terminal, has just finished the replacing of carbon brush, makes motor can keep former performance and works on, avoided original structure to grind because of the carbon brush of motor, and situation that instrument can not continue to use;
(3) changing traditional compression spring structure is constant force torsion spring structure, especially in carbon brush and constant force torsion spring contact position, the constant force torsion spring has adopted circular shape, make motor in use, when the carbon brush wearing and tearing shorten, the arm of force earthquake of constant force torsion spring, the actual effective force that is subjected to spring of carbon brush is stable basically (changing very little), does not have angle change after abrasion, can reduce commutation spark, prolong electrical machinery life, simultaneously, constant force torsion spring circular shape place and carbon brush contact point also moving, have guaranteed the effective force uniformity of carbon brush to the commutator effect, to the influence of motor, make motor stable performance in entire work process when can balancing force changing;
(4) because lead one end is put into the plug terminal connecting hole, pressure welding is connected lead with plug terminal, promptly earlier the terminal hole flattening is added tin then, lead and plug terminal are linked together, guaranteed that lead and brush pigtail have good bonding strength, electric current flows to commutator by the brush pigtail, at big electric current, when working long hours, more can guarantee stable contact, improved the overload capacity of motor, increase motor life, and more can keep good electrical conductivity;
(5) because carbon brush component can be finished the laggard luggage of assembling at motor joins, the plastic bracket structure of motor of this replaceable carbon brush, in the production line assembling process, carbon brush can not produce and burst apart or phenomenon such as get loose.
Description of drawings
Accompanying drawing 1 (A) is: prior art-built-in carbon brush component beryllium copper chip architecture carbon brush initial position;
Accompanying drawing 1 (B) is: position after prior art-built-in carbon brush component beryllium copper chip architecture carbon brush wearing and tearing are finished;
Accompanying drawing 2 is: stereogram of the present invention;
Accompanying drawing 3 is: exploded view of the present invention;
Accompanying drawing 4 (A) is: front view of the present invention;
Accompanying drawing 4 (B) is: right view of the present invention;
Accompanying drawing 5 (A) is: the carbon brush component front view;
Accompanying drawing 5 (B) is: the carbon brush component vertical view;
Accompanying drawing 6 (A) is: the plug terminal structure chart;
Accompanying drawing 6 (B) is: accompanying drawing 6 (A) A-A is to structure chart;
Accompanying drawing 7 is: carbon brush and constant force torsion spring circular shape place installation diagram.
Description of reference numerals: 1. mould support 2. brush boxs 3. plastic cylinders 4. brush holder springs 5. carbon brush components 51. carbon brush 52. brush pigtails 53. and insert spring 6. terminal assemblies 61. brush box bottom board 62. plug terminals 63. plug terminal connecting holes 64. leads
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
As Fig. 2,3 and accompanying drawing 4 (A), (B) shown in, a kind of plastic bracket structure of motor of replaceable carbon brush, comprise and mould support 1, brush box 2, plastic cylinder 3, brush holder spring 4, carbon brush component 5 and terminal assemblies 6, moulding support 1 both sides, design has two outside little die cavities of symmetry fully, brush box 2, plastic cylinder 3, brush holder spring 4, carbon brush component 5 and terminal assemblies 6 are arranged in the little die cavity, and plastic cylinder 3 is arranged on little die cavity one side vertically upward, and brush holder spring 4 is mounted on location on the plastic cylinder 3; Support 1 edge of moulding near plastic cylinder 3 is a circular shape.
Shown in accompanying drawing 5 (A), (B), carbon brush component 5 comprises carbon brush 51, brush pigtail 52 and slotting spring 53, and the head of brush pigtail 52 is fixedlyed connected with carbon brush 51, and the afterbody of brush pigtail 52 and slotting spring 53 are for being welded to connect.Shown in Fig. 6 (A), (B), terminal assemblies 6 comprises brush box bottom board 61, plug terminal 62, plug terminal connecting hole 63 and lead 64, and plug terminal 62 is fixedlyed connected with brush box bottom board 61 with plug terminal connecting hole 63; The slotting spring 53 of carbon brush component 5 is socket connection with the plug terminal 62 of terminal assemblies 6.Terminal assemblies 6 by riveted way with mould support 1 and connect.
As shown in Figure 7, brush holder spring 4 adopts the constant force torsion spring, and constant force torsion spring and contact position, carbon brush 51 bottom are circular shape.Lead 64 is in plug terminal connecting hole 63, lead 64 is connected for pressure welding with plug terminal connecting hole 63, promptly earlier 63 flattenings of terminal connecting hole are added tin then, lead 64 and plug terminal 62 are linked together, guaranteed that lead 64 and brush pigtail 52 have good bonding strength.
The assembling result as shown in Figure 2, is moulding support 1 both sides, and brush box 2, plastic cylinder 3, brush holder spring 4, carbon brush component 5 and terminal assemblies 6 are arranged in two symmetrical fully outside little die cavities, and this structure extremely is convenient to the replacing of carbon brush component 6; After old carbon brush has ground, insert spring 53 as long as extract, pull out brush holder spring 4, can take out old carbon brush component 5, again the carbon brush 51 of new carbon brush component 5 is put into brush box 2, simultaneously, brush holder spring 4 is put back to original position, insert spring 53 and be inserted on the plug terminal 62, just finished the replacing of carbon brush component 5, make motor can keep former performance and work on, avoided original structure to grind because of the carbon brush 51 of motor, and the situation that instrument can not continue to use.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacing all should be included in protection scope of the present invention.
Claims (6)
1. the plastic bracket structure of motor of a replaceable carbon brush, comprise and mould support, brush box, plastic cylinder, brush holder spring, carbon brush component and terminal assemblies, it is characterized in that moulding the support both sides, design has two outside little die cavities of symmetry fully, brush box, plastic cylinder, brush holder spring, carbon brush component and terminal assemblies are arranged in the little die cavity, plastic cylinder is arranged on little die cavity one side vertically upward, and brush holder spring is mounted on the plastic cylinder and locatees; Carbon brush component comprises carbon brush, brush pigtail and slotting spring, and the head of brush pigtail is fixedlyed connected with carbon brush, and the afterbody of brush pigtail is fixedlyed connected with slotting spring; Terminal assemblies comprises brush box bottom board, plug terminal, plug terminal connecting hole and lead, and plug terminal is fixedlyed connected with brush box bottom board with the plug terminal connecting hole; The plug terminal of insertion spring and terminal assemblies is socket connection, terminal assemblies by riveted way with mould support and connect.
2. the plastic bracket structure of motor of a kind of replaceable carbon brush according to claim 1 is characterized in that described brush holder spring adopts the constant force torsion spring.
3. the plastic bracket structure of motor of a kind of replaceable carbon brush according to claim 2 is characterized in that contact position, described constant force torsion spring and carbon brush bottom is a circular shape.
4. the plastic bracket structure of motor of a kind of replaceable carbon brush according to claim 1 is characterized in that the afterbody of described brush pigtail and slotting spring are for being welded to connect.
5. the plastic bracket structure of motor of a kind of replaceable carbon brush according to claim 1 is characterized in that described lead in the plug terminal connecting hole, and lead is that pressure welding is connected with the plug terminal connecting hole.
6. the plastic bracket structure of motor of a kind of replaceable carbon brush according to claim 1 is characterized in that the described bracket edge of moulding near plastic cylinder is a circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101717186A CN101651380B (en) | 2009-08-26 | 2009-08-26 | Plastic bracket structure of motor with replaceable carbon brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101717186A CN101651380B (en) | 2009-08-26 | 2009-08-26 | Plastic bracket structure of motor with replaceable carbon brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101651380A true CN101651380A (en) | 2010-02-17 |
| CN101651380B CN101651380B (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101717186A Active CN101651380B (en) | 2009-08-26 | 2009-08-26 | Plastic bracket structure of motor with replaceable carbon brush |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924411A (en) * | 2010-06-25 | 2010-12-22 | 锦州海伯伦汽车电子有限公司 | Novel carbon brush holder for automobile alternator voltage regulator |
| CN108718123A (en) * | 2018-08-01 | 2018-10-30 | 浙江美茵电机有限公司 | A kind of Permanent magnet DC high pressure slicer motor |
| CN108808952A (en) * | 2018-05-09 | 2018-11-13 | 昆山埃维奥电机有限公司 | A kind of automobile brush motor brush holder bound edge and solder terminal |
| CN109244781A (en) * | 2018-11-12 | 2019-01-18 | 安徽工业大学 | A kind of carbon brush apparatus for automatic change |
| CN109301971A (en) * | 2018-11-12 | 2019-02-01 | 安徽工业大学 | A kind of carbon brush connects power supply machine and its carbon brush replacing options |
| CN111927908A (en) * | 2020-07-20 | 2020-11-13 | 东风商用车有限公司 | Self-adjusting arm failure alarm of S-cam drum brake |
| CN112355138A (en) * | 2020-10-16 | 2021-02-12 | 江苏福吉特管业有限公司 | Pressure sensing feedback type ultrasonic electric pulse composite rolling processing device |
-
2009
- 2009-08-26 CN CN2009101717186A patent/CN101651380B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924411A (en) * | 2010-06-25 | 2010-12-22 | 锦州海伯伦汽车电子有限公司 | Novel carbon brush holder for automobile alternator voltage regulator |
| CN108808952A (en) * | 2018-05-09 | 2018-11-13 | 昆山埃维奥电机有限公司 | A kind of automobile brush motor brush holder bound edge and solder terminal |
| CN108718123A (en) * | 2018-08-01 | 2018-10-30 | 浙江美茵电机有限公司 | A kind of Permanent magnet DC high pressure slicer motor |
| CN109244781A (en) * | 2018-11-12 | 2019-01-18 | 安徽工业大学 | A kind of carbon brush apparatus for automatic change |
| CN109301971A (en) * | 2018-11-12 | 2019-02-01 | 安徽工业大学 | A kind of carbon brush connects power supply machine and its carbon brush replacing options |
| CN109301971B (en) * | 2018-11-12 | 2023-10-27 | 安徽工业大学 | Carbon brush continuous power supply machine and carbon brush replacement method thereof |
| CN109244781B (en) * | 2018-11-12 | 2024-02-09 | 安徽工业大学 | Automatic carbon brush replacing device |
| CN111927908A (en) * | 2020-07-20 | 2020-11-13 | 东风商用车有限公司 | Self-adjusting arm failure alarm of S-cam drum brake |
| CN111927908B (en) * | 2020-07-20 | 2021-09-14 | 东风商用车有限公司 | Self-adjusting arm failure alarm of S-cam drum brake |
| CN112355138A (en) * | 2020-10-16 | 2021-02-12 | 江苏福吉特管业有限公司 | Pressure sensing feedback type ultrasonic electric pulse composite rolling processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101651380B (en) | 2011-11-30 |
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Effective date of registration: 20180517 Address after: 315400 No. 24 Zijin Mountain West Road, Yuyao, Ningbo, Zhejiang Patentee after: Yuyao Actuator Electric Motor Co., Ltd. Address before: 315420 West Road, Zijin Mountain, Lu port town, Yuyao, Zhejiang Province, No. 24 Co-patentee before: Yuan Yinju Patentee before: Yuyao Actuator Electric Motor Co., Ltd. |
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