GB2581065A - Seals for haptic feedback devices - Google Patents
Seals for haptic feedback devices Download PDFInfo
- Publication number
- GB2581065A GB2581065A GB2005408.6A GB202005408A GB2581065A GB 2581065 A GB2581065 A GB 2581065A GB 202005408 A GB202005408 A GB 202005408A GB 2581065 A GB2581065 A GB 2581065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- haptic feedback
- moveable component
- feedback device
- cavity
- sealing mechanism
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
Abstract
Broadly speaking, embodiments of the present techniques provide haptic feedback devices which comprise sealing mechanisms to minimise, limit or prevent liquid and/or dirt/dust ingress into the device such that the functionality of the haptic feedback device is maintained over its lifetime. The haptic feedback devices are operated using shape memory alloy (SMA) actuators.
Claims (36)
1. A haptic feedback device comprising : a housing comprising a cavity; a moveable component provided within the cavity and moveable relative to the cavity; an actuator for moving the moveable component to provide haptic feedback; and a sealing mechanism for limiting liquid and/or dust ingress into the device.
2. The haptic feedback device as claimed in claim 1 wherein the actuator comprises at least one length of shape memory alloy (SMA) actuator wire arranged to, on contraction, move the moveable component within the cavity .
3. The haptic feedback device as claimed in claim 2 wherein the moveable component is movable along a movement axis within the cavity, the movement axis being parallel to the at least one length of SMA actuator wire.
4. The haptic feedback device as claimed in claim 2 further comprising : a further moveable component provided within the cavity in contact with the moveable component.
5. The haptic feedback device as claimed in claim 4 wherein : the moveable component is moveable along a first axis within the cavity; the further moveable component is moveable in a plane defined by the first axis and a second axis, the second axis being perpendicular to the first axis, and arranged to drive movement of the moveable component along the first axis; and the at least one length of SMA actuator wire is coupled to the further moveable component and arranged to, on contraction, move the further moveable component in the plane.
6. The haptic feedback device as claimed in claim 4 wherein : the moveable component is moveable along a first axis within the cavity; the further moveable component is rotatable about a second axis that is parallel to the first axis, and arranged to drive movement of the moveable component along the first axis; and the at least one SMA actuator wire is coupled to the further moveable component and arranged to, on contraction, rotate the further moveable component about the second axis.
7. The haptic feedback device as claimed in claim 2 wherein the moveable component is moveable along a movement axis within the cavity, the movement axis being at an angle to the at least one length of SMA actuator wire.
8. The haptic feedback device as claimed in any one of claims 1 to 7 wherein the sealing mechanism is non-structural and does not constrain the motion of the moveable component.
9. The haptic feedback device as claimed in any one of claims 1 to 7 wherein the sealing mechanism is structural and constrains the motion of the moveable component within the cavity .
10. The haptic feedback device as claimed in any one of claims 1 to 9 wherein the sealing mechanism seals the device when the moveable component is stationary and in motion.
11. The haptic feedback device as claimed in any one of claims 1 to 9 wherein the sealing mechanism seals the device when the moveable component is stationary only.
12. The haptic feedback device as claimed in any one of claims 1 to 10 wherein the sealing mechanism comprises an external sealing film provided over the cavity and at least part of the housing.
13. The haptic feedback device as claimed in claim 12 wherein the external sealing film is formed of any one of: a flexible material, an elastic material, an elastomer, a polymer, a silicone material, a thin metallic material, a composite material, a thin aluminium film, a thin titanium film, an alloy, and a thin stainless steel film .
14. The haptic feedback device as claimed in any one of claims 1 to 13 wherein the sealing mechanism comprises an internal sealing film provided within the cavity, wherein at least part of the moveable component is provided beneath, above or protrudes through the internal sealing film .
15. The haptic feedback device as claimed in any one of claims 4 to 13 wherein the sealing mechanism comprises an internal sealing film provided within the cavity between the moveable component and the further moveable component.
16. The haptic feedback device as claimed in claim 14 or 15 wherein the internal sealing film is formed of any one of: a flexible material, an elastic material, an elastomer, a polymer, a silicone material, a thin metallic material, a composite material, a thin aluminium film, a thin titanium film, an alloy, and a thin stainless steel film .
17. The haptic feedback device as claimed in any preceding claim wherein the sealing mechanism comprises a gasket seal provided between the moveable component and the cavity.
18. The haptic feedback device as claimed in claim 17 wherein the gasket seal abuts against a rigid structure located between the gasket seal and the moveable component.
19. The haptic feedback device as claimed in claim 17 or 18 wherein the gasket seal is formed of a liquid-impermeable material .
20. The haptic feedback device as claimed in claim 17, 18 or 19 wherein the gasket seal is formed of a compressible material.
21. The haptic feedback device as claimed in any preceding claim, wherein the sealing mechanism comprises a mesa structure on the button, where the mesa structure engages with one or more surfaces of the cavity of the housing.
22. The haptic feedback device as claimed in any preceding claim wherein the sealing mechanism comprises at least one flexible element coupled to the moveable component and to a surface of the cavity.
23. The haptic feedback device as claimed in claim 22 wherein the at least one flexible element is formed of any one of: rubber, an elastic material, an elastomer, a polymer, a foam material, a closed cell foam material, and a silicone material .
24. The haptic feedback device as claimed in any one of claims 4 to 6 wherein the moveable component and the housing are integrally formed.
25. The haptic feedback device as claimed in any one of claims 14 to 236 wherein the moveable component and the sealing mechanism are integrally formed.
26. The haptic feedback device as claimed in any one of claims 4 to 6 wherein the housing and the sealing mechanism are integrally formed .
27. The haptic feedback device as claimed in claim 26 wherein the sealing mechanism comprises one slit in the vicinity of the moveable component for increasing the flexibility of the sealing mechanism .
28. The haptic feedback device as claimed in claim 26 wherein the sealing mechanism comprises two spaced apart parallel slits in the vicinity of the moveable component for increasing the flexibility of the sealing mechanism .
29. The haptic feedback device as claimed in claims 26, 27 or 28 wherein the sealing mechanism further comprises an internal sealing film provided within the cavity, wherein at least part of the moveable component is provided beneath, above or protrudes through the internal sealing film .
30. The haptic feedback device as claimed in any one of claims 26 to 29 wherein the sealing mechanism further comprises a gasket seal provided between the moveable component and the cavity.
31. The haptic feedback device as claimed in any preceding claim wherein at least one of the following are formed from a hydrophobic material : the moveable component, the housing, the cavity, the actuator, and the sealing mechanism .
32. The haptic feedback device as claimed in any preceding claim wherein at least one of the following are coated with a hydrophobic material : the moveable component, the housing, the cavity, the actuator, and the sealing mechanism .
33. The haptic feedback device as claimed in claim 31 or 32 wherein the hydrophobic material is polytetrafluoroethylene.
34. An apparatus comprising : a haptic feedback device according to any of claims 1 to 33 for delivering a haptic sensation to a user of the apparatus.
35. The apparatus as claimed in claim 34 where the apparatus is any one of: a smartphone, a camera, a foldable smartphone, a foldable image capture device, a foldable smartphone camera, a foldable consumer electronics device, a camera with folded optics, an image capture device, an array camera, a 3D sensing device or system, a consumer electronic device, a domestic appliance, a mobile computing device, a mobile electronic device, a laptop, a tablet computing device, an e-reader, a computing accessory, a computing peripheral device, an audio device, a security system, a gaming system, a gaming controller, a robot or robotics device, an augmented reality system, an augmented reality device, a virtual reality system, a virtual reality device, a wearable device, and a vehicle.
36. The apparatus as claimed in claim 34 or 35 wherein the sealing mechanism comprises a portion of a surface of the apparatus.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1716889.9A GB201716889D0 (en) | 2017-10-13 | 2017-10-13 | Waterproof haptic feedback device |
| GBGB1803084.1A GB201803084D0 (en) | 2018-02-26 | 2018-02-26 | Haptic button with SMA |
| GB1813008.8A GB2571384A (en) | 2018-02-26 | 2018-08-09 | Haptic button with SMA |
| PCT/GB2018/052923 WO2019073243A1 (en) | 2017-10-13 | 2018-10-11 | Seals for haptic feedback devices |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202005408D0 GB202005408D0 (en) | 2020-05-27 |
| GB2581065A true GB2581065A (en) | 2020-08-05 |
| GB2581065B GB2581065B (en) | 2022-09-28 |
Family
ID=66100444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2005408.6A Active GB2581065B (en) | 2017-10-13 | 2018-10-11 | Seals for haptic feedback devices |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2581065B (en) |
| WO (1) | WO2019073243A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2583946A (en) * | 2019-05-15 | 2020-11-18 | Cambridge Mechatronics Ltd | Unibody haptics actuator |
| GB201906916D0 (en) * | 2019-05-16 | 2019-07-03 | Cambridge Mechatronics Ltd | Actuator assembly with SMA |
| CN113340518B (en) * | 2021-06-10 | 2022-07-19 | 广东省科学院半导体研究所 | Push type touch sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013175197A1 (en) * | 2012-05-25 | 2013-11-28 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
| US20140009434A1 (en) * | 2012-07-06 | 2014-01-09 | Hyundai Motor Company | Electronic device implementing a touch panel display unit |
| WO2014093741A1 (en) * | 2012-12-13 | 2014-06-19 | Bayer Materialscience Ag | Electroactive polymer actuated surface with flexible sealing membrane |
| US20160058375A1 (en) * | 2014-09-02 | 2016-03-03 | Apple Inc. | Wearable electronic device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7893922B2 (en) * | 2007-01-15 | 2011-02-22 | Sony Ericsson Mobile Communications Ab | Touch sensor with tactile feedback |
| GB201709011D0 (en) | 2017-06-06 | 2017-07-19 | Cambridge Mechatronics Ltd | SMA Smart button mechanism |
-
2018
- 2018-10-11 WO PCT/GB2018/052923 patent/WO2019073243A1/en active Application Filing
- 2018-10-11 GB GB2005408.6A patent/GB2581065B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013175197A1 (en) * | 2012-05-25 | 2013-11-28 | Cambridge Mechatronics Limited | Shape memory alloy actuation apparatus |
| US20140009434A1 (en) * | 2012-07-06 | 2014-01-09 | Hyundai Motor Company | Electronic device implementing a touch panel display unit |
| WO2014093741A1 (en) * | 2012-12-13 | 2014-06-19 | Bayer Materialscience Ag | Electroactive polymer actuated surface with flexible sealing membrane |
| US20160058375A1 (en) * | 2014-09-02 | 2016-03-03 | Apple Inc. | Wearable electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019073243A1 (en) | 2019-04-18 |
| GB202005408D0 (en) | 2020-05-27 |
| GB2581065B (en) | 2022-09-28 |
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