DE29717431U1 - Schaltungsanordnung zum Schutz eines Elektrokleinstmotors eines zahnärztlichen Bohrantriebes vor Überlastung - Google Patents
Schaltungsanordnung zum Schutz eines Elektrokleinstmotors eines zahnärztlichen Bohrantriebes vor ÜberlastungInfo
- Publication number
- DE29717431U1 DE29717431U1 DE29717431U DE29717431U DE29717431U1 DE 29717431 U1 DE29717431 U1 DE 29717431U1 DE 29717431 U DE29717431 U DE 29717431U DE 29717431 U DE29717431 U DE 29717431U DE 29717431 U1 DE29717431 U1 DE 29717431U1
- Authority
- DE
- Germany
- Prior art keywords
- motor
- current
- evaluator
- circuit arrangement
- small electric
- 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.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000011156 evaluation Methods 0.000 claims 2
- 230000006399 behavior Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0856—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load characterised by the protection measure taken
- H02H7/0858—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load characterised by the protection measure taken by reversing, cycling or reducing the power supply to the motor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/0007—Control devices or systems
- A61C1/0015—Electrical systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/12—Angle hand-pieces
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/18—Flexible shafts; Clutches or the like; Bearings or lubricating arrangements; Drives or transmissions
- A61C1/185—Drives or transmissions
- A61C1/186—Drives or transmissions with torque adjusting or limiting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
- H02H6/005—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images using digital thermal images
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Protection Of Generators And Motors (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electric Motors In General (AREA)
Description
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29717431U DE29717431U1 (de) | 1997-09-30 | 1997-09-30 | Schaltungsanordnung zum Schutz eines Elektrokleinstmotors eines zahnärztlichen Bohrantriebes vor Überlastung |
ITMI982048 IT1302250B1 (it) | 1997-09-30 | 1998-09-23 | Circuito per la protezione da sovraccarico di un micromotoreelettrico di un trapano dentistico |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29717431U DE29717431U1 (de) | 1997-09-30 | 1997-09-30 | Schaltungsanordnung zum Schutz eines Elektrokleinstmotors eines zahnärztlichen Bohrantriebes vor Überlastung |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29717431U1 true DE29717431U1 (de) | 1999-01-28 |
Family
ID=8046637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29717431U Expired - Lifetime DE29717431U1 (de) | 1997-09-30 | 1997-09-30 | Schaltungsanordnung zum Schutz eines Elektrokleinstmotors eines zahnärztlichen Bohrantriebes vor Überlastung |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE29717431U1 (de) |
IT (1) | IT1302250B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1115188A3 (de) * | 2000-01-05 | 2005-08-31 | ABBPATENT GmbH | Verfahren zum Betreiben einer Betätigungsvorrichtung |
-
1997
- 1997-09-30 DE DE29717431U patent/DE29717431U1/de not_active Expired - Lifetime
-
1998
- 1998-09-23 IT ITMI982048 patent/IT1302250B1/it active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1115188A3 (de) * | 2000-01-05 | 2005-08-31 | ABBPATENT GmbH | Verfahren zum Betreiben einer Betätigungsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
ITMI982048A1 (it) | 2000-03-23 |
IT1302250B1 (it) | 2000-09-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19990311 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20010110 |
|
R081 | Change of applicant/patentee |
Owner name: SIRONA DENTAL SYSTEMS GMBH, DE Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE Effective date: 19980626 Owner name: SIRONA DENTAL SYSTEMS GMBH, DE Free format text: FORMER OWNER: SIRONA DENTAL SYSTEMS GMBH & CO. KG, 64625 BENSHEIM, DE Effective date: 20010206 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20031031 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20051021 |
|
R071 | Expiry of right |