CN2112217U - Safety electric brush - Google Patents
Safety electric brush Download PDFInfo
- Publication number
- CN2112217U CN2112217U CN 91230955 CN91230955U CN2112217U CN 2112217 U CN2112217 U CN 2112217U CN 91230955 CN91230955 CN 91230955 CN 91230955 U CN91230955 U CN 91230955U CN 2112217 U CN2112217 U CN 2112217U
- Authority
- CN
- China
- Prior art keywords
- brush
- motor
- electric brush
- safety
- hole
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052802 copper Inorganic materials 0.000 claims abstract description 11
- 239000010949 copper Substances 0.000 claims abstract description 11
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
The utility model relates to a safety electric brush for in motor. The existing brush body is internally provided with a safety device consisting of a mushroom-shaped insulating fuse, a safety spring, a copper gasket and a transverse pin. The safety element is arranged in the hole of the electric brush and is pressed tightly by the spring, the safety spring is pressed tightly by the cross pin, and the copper gasket is pressed tightly by the electric brush wire and the copper powder. When the electric brush is worn to the limit size, the hole is worn through, the safety catch is automatically ejected, the motor is separated from the commutator, and the motor is automatically powered off, so that the motor is ensured not to be damaged, the service life of the motor can be prolonged, and the electric brush has better social benefits.
Description
The utility model is a kind of Safety electric brush that is used in the motor.
The brush of adorning in the existing motor is the real core body made from electrical carbon of rectangle, is pressed with copper powder and lead in the hole of core body one end, and lead is extended out outside the brush body, and lead is with stage clip outward, and wire terminals is connected to lug plate.When installing, an end of brush withstands on the commutator of motor, and be equipped with stage clip and compress brush at other end brush holder place, and the lead of drawing connects with power supply.When motor rotation, the commutator of brush and motor surface produces sliding friction, and brush is with prolonging and constantly wearing and tearing service time.When may wear to the terminal imbedded to brush stage clip end, still can keep energising, make motor rotation.At this moment, the commutator of motor directly with lead and the friction of stage clip end, because of commutator and lead all are metals, the frictional resistance increasing very easily produces heat and spark, causes burning commutator or makes power supply short circuit, dangerous accident such as breaking out of fire.
The purpose of this utility model is to be provided with safeties in existing brush, and when wear of brush arrived dimension limit, insurance is automatic to be ejected, and it is cut off the electricity supply, and stops the motor rotation, avoided decreasing ring motor or accident generation.
Technical characterictic of the present utility model is: the safeties that Safety electric brush is made of insurance, relief spring, copper backing, lateral pin, and the brush body, the brush lead, stage clip constitutes.In brush body, be drilled with two sections deep holes that diameter is different, be drilled with the convex aperture at the top in hole, mushroom insulator insurance is housed in the convex aperture, insure sub-top external arc and tangent contact of cylindrical at the bottom of the convex of top, hole, the outer suit relief spring of shank of mushroom insurance, compress by copper backing,, do not make its outer moving with the fixing position of relief spring in the brush body of lateral pin.Be pressed into copper powder and brush lead at the major diameter rear portion in hole, brush holder is with the brush stage clip outward, and lead passes from stage clip or directly is connected on the motor conducting strip.When Safety electric brush is packed the motor operation into, when brush is worn down to the sunken bottom edge limit line A-A in dimension limit one hole, insurance bottom from the hole under the pressure of relief spring ejects, brush promptly disengages with commutator, electric current is interrupted, motor shuts down automatically, reminds the user of service to change brush.Thereby guarantee the safety of motor.
The utility model has the advantages that: structural design is new reasonable, owing in existing brush, be provided with the safeties that constitute by insurance, relief spring, copper backing, lateral pin, when wear of brush arrives the limit, can cut off the electricity supply automatically, motor is stopped operating automatically, can guarantee the safety of motor, avoid impaired, thereby improve the working life of motor, have the good social benefit, but wide popularization and application.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described:
Accompanying drawing 1 is the structural representation of Safety electric brush.
Shown in accompanying drawing 1, bore a hole in brush body (1) handle end, the aperture is big earlier, it is slightly little to change diameter then, and the drill bit of drill bit indent continues to pierce certain depth, and mushroom insurance (2) is adorned at the top in this hole, and insurance is made with a kind of high-strength insulating material.The diameter of insurance (2) is slightly little through the top diameter in hole, and it can be slided in the hole flexibly inward or outwards.The mutually circumscribed contact of interior circular arc of sunken bottom in the end external arc of insurance son and the hole.The outer suit relief spring (3) of the shank of insurance (2) is compressed by copper backing (5), and lateral pin (6) passes brush body (1) at the copper backing downside relief spring (3) is tacked, and fixed copper pad (5) position does not make its outer moving.Major diameter rear portion in the hole is pressed into copper powder (7) and brush conductive lead wire (8), and copper backing is compressed by brush lead and copper powder, the outer suit brush stage clip (4) of brush stud, and brush lead (8) passes from stage clip.
Claims (2)
1, a kind of Safety electric brush that is used for motor, constitute by brush body (1), insurance (2), relief spring (3), brush stage clip (4), copper backing (5), lateral pin (6), copper powder (7) brush lead (8) assembling, it is characterized in that: the insurance top, brush hole of packing into, compress by relief spring, relief spring is compressed by lateral pin, and copper backing is compressed by brush lead and copper powder.
2, Safety electric brush according to claim 1 is characterized in that: insurance adopts high-strength insulating material, is processed into mushroom, and circular arc is tangent at the bottom of its end circular arc and the convex hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230955 CN2112217U (en) | 1991-11-25 | 1991-11-25 | Safety electric brush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230955 CN2112217U (en) | 1991-11-25 | 1991-11-25 | Safety electric brush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2112217U true CN2112217U (en) | 1992-08-05 |
Family
ID=4936226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91230955 Granted CN2112217U (en) | 1991-11-25 | 1991-11-25 | Safety electric brush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2112217U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319251C (en) * | 2004-03-31 | 2007-05-30 | 丰田自动车株式会社 | Device for judging brush state of motor |
| CN100414785C (en) * | 2003-12-12 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Brush assembly of collector motor possessing function of blocking out overload current |
| CN1992451B (en) * | 2005-12-30 | 2010-12-01 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| CN103427272A (en) * | 2012-05-17 | 2013-12-04 | 海门市海菱碳业有限公司 | Automobile safety carbon brush with double wires |
| CN103427268A (en) * | 2012-05-15 | 2013-12-04 | 海门市华联电碳有限公司 | Safety carbon brush for electric pick |
| CN103427284A (en) * | 2012-05-14 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush for electric polisher |
| CN103427280A (en) * | 2012-05-18 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush for automatic-stop type angle polishing machine |
| CN103427301A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush for safe electric hammer |
| CN103427279A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Self-jumping carbon brush for electric grinder |
| CN103427300A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Safety carbon brush of starting motor of automobile |
| CN109412315A (en) * | 2018-11-14 | 2019-03-01 | 大庆市华禹石油机械制造有限公司 | A kind of oilfield exploitation mechanical equipment motor |
-
1991
- 1991-11-25 CN CN 91230955 patent/CN2112217U/en active Granted
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100414785C (en) * | 2003-12-12 | 2008-08-27 | 乐金电子(天津)电器有限公司 | Brush assembly of collector motor possessing function of blocking out overload current |
| CN1319251C (en) * | 2004-03-31 | 2007-05-30 | 丰田自动车株式会社 | Device for judging brush state of motor |
| CN1992451B (en) * | 2005-12-30 | 2010-12-01 | 申克碳化技术股份有限公司 | Carbon brush with disconnecting device |
| CN103427284A (en) * | 2012-05-14 | 2013-12-04 | 海门市海菱碳业有限公司 | Safety carbon brush for electric polisher |
| CN103427268A (en) * | 2012-05-15 | 2013-12-04 | 海门市华联电碳有限公司 | Safety carbon brush for electric pick |
| CN103427272A (en) * | 2012-05-17 | 2013-12-04 | 海门市海菱碳业有限公司 | Automobile safety carbon brush with double wires |
| CN103427280A (en) * | 2012-05-18 | 2013-12-04 | 海门市海菱碳业有限公司 | Carbon brush for automatic-stop type angle polishing machine |
| CN103427301A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Carbon brush for safe electric hammer |
| CN103427279A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Self-jumping carbon brush for electric grinder |
| CN103427300A (en) * | 2012-05-18 | 2013-12-04 | 海门市华联电碳有限公司 | Safety carbon brush of starting motor of automobile |
| CN109412315A (en) * | 2018-11-14 | 2019-03-01 | 大庆市华禹石油机械制造有限公司 | A kind of oilfield exploitation mechanical equipment motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |