GB1367487A - Piezoelectric motors - Google Patents
Piezoelectric motorsInfo
- Publication number
- GB1367487A GB1367487A GB4200671A GB4200671A GB1367487A GB 1367487 A GB1367487 A GB 1367487A GB 4200671 A GB4200671 A GB 4200671A GB 4200671 A GB4200671 A GB 4200671A GB 1367487 A GB1367487 A GB 1367487A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- piezo
- electric
- stacks
- sept
- 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
Links
- 238000005452 bending Methods 0.000 abstract 2
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002537 cosmetic Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 238000004382 potting Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
- B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
- B26B19/282—Motors without a rotating central drive shaft, e.g. linear motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
- H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
- H10N30/2041—Beam type
- H10N30/2042—Cantilevers, i.e. having one fixed end
- H10N30/2043—Cantilevers, i.e. having one fixed end connected at their free ends, e.g. parallelogram type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Dry Shavers And Clippers (AREA)
Abstract
1367487 Piezo-electric motors SIEMENS AG and BRAUN AG 9 Sept 1971 [11 Sept 1970] 42006/71 Heading H2A A motor for a dry shaver or small cosmetic apparatus includes a plurality of spaced, parallel piezo-electric elements 2 operable in the bending mode and arranged as a stack between a fixed part 4 of the motor and a component 1 which is to be linearly displaced two such stacks being provided which are adapted to oscillate in phase opposition. As shown, each element 2 of a stack comprises a metal or plastics material strip 5 sandwiched between a pair of piezo-electric strips 6 with electrodes on opposite faces thereof. The part 4 may consist of a number of individual clamping jaws between pairs of which the ends of the elements 2 are clamped. Alternatively the ends of the elements may be secured in recesses in part 4 by potting resin or they may be moulded in the part 4. In another embodiment, Fig. 4 (not shown), half of each element in the lengthwise direction is oppositely polarized or oppositely excited with respect to the other half so that in the bending mode, nodal points are produced half way along the elements. In this case the ends of the piezoelectric strips adjacent the component 1 are also secured thereto. The components carried by the stacks may be mounted in line or side by side.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2045108A DE2045108C3 (en) | 1970-09-11 | 1970-09-11 | Piezoelectric drive |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1367487A true GB1367487A (en) | 1974-09-18 |
Family
ID=5782234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4200671A Expired GB1367487A (en) | 1970-09-11 | 1971-09-09 | Piezoelectric motors |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2045108C3 (en) |
GB (1) | GB1367487A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1833102A2 (en) * | 1999-10-01 | 2007-09-12 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device |
US7916880B2 (en) | 2004-06-30 | 2011-03-29 | New Transducers Limited | Transducer |
RU2616225C1 (en) * | 2015-12-07 | 2017-04-13 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенский государственный университет" (ФГБОУ ВПО "Пензенский государственный университет") | Self-sensing multilayer piezoelectric actuator |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2527647C3 (en) * | 1975-06-20 | 1981-06-25 | Siemens AG, 1000 Berlin und 8000 München | Writing implement that works with liquid droplets |
DE3114224A1 (en) * | 1981-04-08 | 1982-11-04 | Siemens AG, 1000 Berlin und 8000 München | WRITING DEVICE WORKING WITH LIQUID DROPS |
DE3309239A1 (en) * | 1983-03-15 | 1984-09-20 | Siemens AG, 1000 Berlin und 8000 München | Piezo-electric motor |
-
1970
- 1970-09-11 DE DE2045108A patent/DE2045108C3/en not_active Expired
-
1971
- 1971-09-09 GB GB4200671A patent/GB1367487A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1833102A2 (en) * | 1999-10-01 | 2007-09-12 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device |
EP1833102A3 (en) * | 1999-10-01 | 2009-04-08 | Ngk Insulators, Ltd. | Piezoelectric/electrostrictive device |
US7916880B2 (en) | 2004-06-30 | 2011-03-29 | New Transducers Limited | Transducer |
RU2616225C1 (en) * | 2015-12-07 | 2017-04-13 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пензенский государственный университет" (ФГБОУ ВПО "Пензенский государственный университет") | Self-sensing multilayer piezoelectric actuator |
Also Published As
Publication number | Publication date |
---|---|
DE2045108C3 (en) | 1978-05-03 |
DE2045108B2 (en) | 1977-09-29 |
DE2045108A1 (en) | 1972-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
49R | Reference inserted (sect. 9/1949) | ||
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |