CN2565169Y - Electric machine carbon brush device with automatic unit for indicating brush wear - Google Patents
Electric machine carbon brush device with automatic unit for indicating brush wear Download PDFInfo
- Publication number
- CN2565169Y CN2565169Y CN 02266192 CN02266192U CN2565169Y CN 2565169 Y CN2565169 Y CN 2565169Y CN 02266192 CN02266192 CN 02266192 CN 02266192 U CN02266192 U CN 02266192U CN 2565169 Y CN2565169 Y CN 2565169Y
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- CN
- China
- Prior art keywords
- carbon brush
- contact
- evagination
- bulletin
- brush body
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Abstract
The utility model relates to an electric machine carbon brush device for the automatic indication of brush depletion. The utility model is characterized in that at least one side face of a carbon brush holder is provided with an outwards convex sliding groove; one side provided with a contact point which is insulated with the carbon brush holder beside the bottom of each of the sliding grooves; corresponding outwards convex contact tips which can move in the outwards convex sliding grooves of the carbon brush holder are arranged beside a boundary attrition line on the upper part of a carbon brush body, wherein, the outwards convex contact tips can be contacted with the contact points on the bottoms of the sliding grooves; a leadout conducting wire is arranged on each of the contact points on the bottom of each of the sliding grooves and the contact points on the bottom of each of the sliding grooves are connected with the other carbon brush holder; the contact points on the bottom of each of the sliding grooves are matched with an indication circuit or an alarm circuit which is composed of sound and light or switches. When the utility model works, the carbon brush body slowly wears to the attrition line which is used as a boundary, the outwards convex contact tips on the carbon brush body can be contacted with the contact points to switch on the circuit and make the indication circuit or the alarm circuit generate sound and light indication or switch off a motor power source. The utility model can make users close a motor in time to replace a new carbon brush body, safety can be ensured, and the motor can be started to continue to work.
Description
Technical field: the utility model relates to a kind of carbon brush for electric machine improvement technology, particularly a kind of be used for using on the various electric tools such as hand-operated electric drill, electric hammer, electric saw, percussion drill have a carbon brush for electric machine device that carbon brush (mill) exhausts bulletin automatically (or alarm).
Background technology: in existing various electric tools, as providing power used motor, wherein be used for the carbon brush supporting with rotor, produce friction wear between itself and the rotor commutator (being commonly called as commutator) during start, the user is difficult to grasp the abrasion situation of carbon brush, cause the user often on tenterhooks, because in case exceed the abrasion margin line, copper conductor head in the carbon brush, even compression spring will directly touch with rotor commutator, the friction sparking, make the surperficial ablated of commutator, surface smoothness is damaged so that burn possibility, causes user's economic loss and maintenance trouble.
In view of this, the purpose of this utility model provides a kind of carbon brush for electric machine device that carbon brush exhausts bulletin automatically (or alarm) that has that is used for electric tool, makes the user easy manipulation to carry out safe and efficient production, and can effectively save cost.
The utility model is realized with following technical scheme: it comprises that still two have carbon brush body symmetrical distribution and contact the friction conduction with rotor commutator (commutator), be used to the brush holder the carbon brush body being installed and being play the guiding role, compression spring (be used to promote the carbon brush body and closely contact usefulness) with commutator, carbon brush copper conductor head (be embedded in the carbon brush body and be connected) by carbon brush cap and brush holder and stator winding, it is characterized in that at least being provided with the sliding tray of an evagination (or the one of them) side of brush holder, be provided with a contact of insulating with brush holder by near the side bottom of sliding tray, has a corresponding evagination contact that moves in can evagination sliding tray and can touch mutually with the sliding tray bottom contact making near the boundary on the carbon brush body top abrasion line at brush holder, drawing lead and another brush holder (or carbon brush body) on the sliding tray bottom contact links, and is furnished with one by sound, the bulletin that light or switch are formed (or alarm) circuit, when carbon brush body in the work slowly wears away to as the abrasion line of boundary the time, evagination contact on the carbon brush body can touch with the contact and make line conduction, and allows bulletin (or alarm) circuit generation sound, light bulletin or cut-out motor power.
Operation principle of the present utility model is such: in the start work, when carbon brush not may wear to boundary abrasion line, in brush holder and evagination sliding tray slowly the carbon brush body of slippage and above the evagination contact still have a segment distance with the contact that is positioned at below the brush holder sliding tray, loom this moment (motor) keeps running well.Along with the operating time passes, be accompanied by the carbon brush body by slowly abrasion (attrition), evagination contact and contact are slowly close.When the carbon brush body was worn away to abrasion lines (wearing and tearing boundary line), contact and contact collision made bulletin (or alarm) circuit turn-on, send sound, light bulletin or cut off motor power, and the carbon brush body that allows the timely shutdown of user more renew guarantees safety and continues start work.
Below in conjunction with accompanying drawing embodiment concrete structure principle of the present utility model is described in further detail.
Fig. 1 is a kind of overall structure schematic diagram of the present utility model.
Fig. 2 is the carbon brush component figure (schematic diagram) of band evagination contact contact.
Fig. 3 is the carbon brush component schematic diagram that the evagination contact can use the evagination copper sheet to replace.
With reference to accompanying drawing, wherein: 1-rotor, 2-stator, 3-former carbon brush body brush holder assembly, 4-rotor commutator (also claim commutator, be contained on the machine shaft), 5-trigger switch K (electromagnet), lead is drawn in 6-contact, 7-brush holder contact (being attached to evagination sliding tray below) with the brush holder insulation, the carbon brush component of 8-band evagination contact contact, the external protruding contact of 9-carbon brush, 10-current-limiting resistance, 11-indicator light (or other acousto-optic bulletin elements), 12-copper carbon brush cap, 13-copper conductor head, 14-compression spring, 15-carbon brush body, the evagination contact of 16-carbon brush body top, 17-boundary abrasion line (also claiming the abrasion boundary), 18-brush holder, the evagination sliding tray of 19-brush holder, the copper sheet of 20-band evagination contact, the half-cylindrical evagination sliding tray of 21-brush holder (or other arc sliding trays), 22-former carbon brush body.
With reference to accompanying drawing as can be known, the utility model also can have following technical characterictic when specific design is made.
One, adds the evagination contact 9 of the copper sheet 20 replacement carbon brush bodies of a band evagination contact therein between the upper surface of an existing carbon brush body 22 and the compression spring 14, after the installation, the evagination contact of copper sheet (can be made into lonely shape evagination contact) also can slowly move in the evagination sliding tray of brush holder and can touch mutually with the contact 7 of sliding tray bottom.
Two, bulletin (or alarm) circuit formed of described sound, light or switch can trigger switch K on the lead 6 be drawn in the contact and bulletin indicator light 11 and the current-limiting resistance 10 in parallel with trigger switch formed by being serially connected in.Its circuit working principle is: when the carbon brush body is worn down to the abrasion line, its evagination contact and contact are touched, trigger switch K coil magnet G must conduct K switch is disconnected, and motor shuts down, and indicator light unlatching is simultaneously sent bulletin signal (light) user and should have been changed carbon brush.
Three, described sound, light bulletin (or alarm) circuit also can be installed in the bulletin indicator light and the current-limiting resistance of drawing on the lead 6 contact by serial connection and be formed, its circuit working principle is: when the carbon brush body is worn down to the abrasion line, its evagination contact and contact are touched, line conduction, indicator light is lighted sent bulletin signal (light), remind the user to have changed carbon brush.
Claims (4)
1, a kind of carbon brush for electric machine device that carbon brush exhausts bulletin automatically that has that is used for electric tool, it comprises that two have carbon brush body symmetrical distribution and contact the friction conduction with rotor commutator (4), be used to the brush holder the carbon brush body being installed and being play the guiding role, compression spring (14) and carbon brush copper conductor head (13), it is characterized in that being provided with in the side of a brush holder at least the sliding tray (19) of an evagination, be provided with a contact (7) of insulating with brush holder by near the side bottom of sliding tray, has a corresponding evagination contact (9) that moves in can evagination sliding tray (19) and can touch mutually with sliding tray bottom contact (7) making near the boundary on the carbon brush body top abrasion line at brush holder, on the sliding tray bottom contact, draw lead and another brush holder links, and is furnished with one by sound, bulletin or warning circuit that light or switch are formed, when carbon brush body in the work slowly wears away to as the abrasion line of boundary the time, evagination contact on the carbon brush body can touch with the contact and make line conduction, and allows bulletin or warning circuit generation sound, light bulletin or cut-out motor power.
2, carbon brush for electric machine device according to claim 1, it is characterized in that also adding between the upper surface of an existing carbon brush body (22) and the compression spring (14) therein an evagination contact (9) of being with copper sheet (20) the replacement carbon brush body of evagination contact, the evagination contact of copper sheet also can slowly move in the evagination sliding tray (21) of brush holder and can touch mutually with the contact (7) of sliding tray bottom.
3, carbon brush for electric machine device according to claim 1 is characterized in that bulletin that described sound, light or switch are formed or warning circuit can trigger switch K on the lead (6) be drawn in the contact and bulletin indicator light (11) and the current-limiting resistance (10) in parallel with trigger switch formed by being serially connected in.
4, carbon brush for electric machine device according to claim 1 is characterized in that described sound, light bulletin or warning circuit also can be installed in the bulletin indicator light and the current-limiting resistance of drawing on the lead (6) contact by serial connection and be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266192 CN2565169Y (en) | 2002-08-07 | 2002-08-07 | Electric machine carbon brush device with automatic unit for indicating brush wear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02266192 CN2565169Y (en) | 2002-08-07 | 2002-08-07 | Electric machine carbon brush device with automatic unit for indicating brush wear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2565169Y true CN2565169Y (en) | 2003-08-06 |
Family
ID=33732076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02266192 Expired - Fee Related CN2565169Y (en) | 2002-08-07 | 2002-08-07 | Electric machine carbon brush device with automatic unit for indicating brush wear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2565169Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022847A (en) * | 2012-12-26 | 2013-04-03 | 南车株洲电机有限公司 | Electric brush for direct current traction motor |
| CN103134057A (en) * | 2011-11-24 | 2013-06-05 | 内蒙古伊利实业集团股份有限公司 | Fire grate broken pin warning device |
| CN105207035A (en) * | 2014-06-16 | 2015-12-30 | 马春辉 | Carbon brush limit control switching electric brush nest |
| CN105333807A (en) * | 2015-11-20 | 2016-02-17 | 中国华能集团清洁能源技术研究院有限公司 | Generator monitoring system |
| CN106654785A (en) * | 2016-12-30 | 2017-05-10 | 重庆市河海碳素制品有限公司 | Carbon brush holder |
| US11566675B2 (en) | 2018-03-21 | 2023-01-31 | Ab Dynamoborstfabriken | Intelligent graphite device |
-
2002
- 2002-08-07 CN CN 02266192 patent/CN2565169Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134057A (en) * | 2011-11-24 | 2013-06-05 | 内蒙古伊利实业集团股份有限公司 | Fire grate broken pin warning device |
| CN103134057B (en) * | 2011-11-24 | 2015-06-17 | 内蒙古伊利实业集团股份有限公司 | Fire grate broken pin warning device |
| CN103022847A (en) * | 2012-12-26 | 2013-04-03 | 南车株洲电机有限公司 | Electric brush for direct current traction motor |
| CN105207035A (en) * | 2014-06-16 | 2015-12-30 | 马春辉 | Carbon brush limit control switching electric brush nest |
| CN105207035B (en) * | 2014-06-16 | 2017-07-07 | 马春辉 | A kind of spacing control break-make brush nest of carbon brush |
| CN105333807A (en) * | 2015-11-20 | 2016-02-17 | 中国华能集团清洁能源技术研究院有限公司 | Generator monitoring system |
| CN106654785A (en) * | 2016-12-30 | 2017-05-10 | 重庆市河海碳素制品有限公司 | Carbon brush holder |
| US11566675B2 (en) | 2018-03-21 | 2023-01-31 | Ab Dynamoborstfabriken | Intelligent graphite device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |