CN111538404B - Haptic feedback device - Google Patents
Haptic feedback device Download PDFInfo
- Publication number
- CN111538404B CN111538404B CN201911380066.7A CN201911380066A CN111538404B CN 111538404 B CN111538404 B CN 111538404B CN 201911380066 A CN201911380066 A CN 201911380066A CN 111538404 B CN111538404 B CN 111538404B
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- China
- Prior art keywords
- friction plate
- display screen
- screen assembly
- feedback device
- haptic feedback
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/014—Force feedback applied to GUI
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a touch feedback device, which comprises a fixed support, a display screen assembly connected with the fixed support and formed with a cavity, and a power module for driving the display screen assembly to vibrate, wherein the power module comprises a first friction plate fixedly connected with the display screen assembly and positioned in the cavity, a second friction plate in matched contact with the first friction plate to generate contact counter force so as to drive the display screen assembly to vibrate, and a power driving device for driving the second friction plate to rotate. The invention adopts the rotary motion of the second friction plate relative to the first friction plate and contacts and extrudes the first friction plate to generate counter force, the counter force enables the first friction plate to vibrate and transmits the vibration to the display screen assembly, thereby driving the display screen assembly to vibrate and realizing force feedback.
Description
[ field of technology ]
The invention relates to the technical field of haptic feedback, in particular to a haptic feedback device.
[ background Art ]
As is well known, the haptic feedback technology, which reproduces the touch feeling by a series of movements such as force and vibration, has become a trend of innovative development of modern technology, and is widely used in electronic products (such as mobile phones, tablet computers, etc.), automobiles, musical instruments, medical equipment, etc. for people to consume. The haptic feedback technology is applied to automobiles, and can solve the problem of distraction during driving or operation so as to improve safety.
The prior art CN201920505318 discloses a touch feedback system of a display module and a vehicle-mounted touch display module, which comprise a fixed bracket, a movable assembly which moves linearly relative to the fixed bracket, and a power driving part, wherein the movable assembly comprises the display module; the power driving part is a solenoid motor including a solenoid, a first soft magnet at least partially surrounded by the solenoid, and a second soft magnet, one of the first soft magnet and the second soft magnet being fixed to the movable assembly, the other being fixed to the fixed bracket. Accordingly, when a pulse voltage is applied to the solenoid of the solenoid motor by energizing the solenoid motor, a suction force is generated between the first soft magnet and the second soft magnet, and after the energization, the suction force is lost between the first soft magnet and the second soft magnet, thereby generating vibration. However, after the first soft magnetic body and the second soft magnetic body are powered off, the attractive force between the first soft magnetic body and the second soft magnetic body cannot disappear immediately, so that the generated vibration effect is not obvious, and the use requirement of people cannot be met.
Therefore, it is necessary to provide a haptic feedback device with a good vibration effect.
[ invention ]
The invention aims to provide a haptic feedback device with good vibration effect.
The technical scheme of the invention is as follows: the utility model provides a touch feedback ware, the touch feedback ware includes the fixed bolster, with the fixed bolster is connected and is formed with the display screen subassembly of a cavity and is used for driving the power module that the display screen subassembly produced the vibration, the power module includes with the fixed continuous and lie in of display screen subassembly first friction disc in the cavity, with thereby the cooperation of first friction disc contacts produces the second friction disc of contact counter force drive display screen subassembly vibration and drive the power drive arrangement that the second friction disc rotated.
Preferably, the first friction plate comprises a main body, a through hole penetrating through the central area of the main body, and at least one first protruding part extending from the inner wall of the through hole; the second friction plate is positioned in the through hole, and a plurality of second protruding parts which are matched with the first protruding parts for extrusion contact are arranged on the outer side of the second friction plate opposite to the inner wall.
Preferably, the through hole includes a first through hole facing the display screen assembly and a second through hole accommodating the second friction plate and communicating with the first through hole, and the diameter of the first through hole is larger than that of the second through hole.
Preferably, the side end of the first friction plate main body connected with the display screen assembly is further provided with an extension part attached to the display screen assembly.
Preferably, the distance value between each adjacent two of the second protrusions is the same.
Preferably, the power module further comprises a speed reducer connected with the power driving device and fixed in the fixed support, and a rotating shaft connected with the speed reducer; the rotating shaft is fixedly connected with the second friction plate and drives the second friction plate to rotate.
Preferably, a mounting hole for inserting the rotating shaft is formed in the center of the second friction plate.
Preferably, the fixing bracket includes a bottom side distant from the display screen assembly and a peripheral side surrounding the bottom side and connected to the bottom side, and the display screen assembly includes a connection end connected to the peripheral side of the fixing bracket and an inner side opposite to the bottom side and spaced apart from the bottom side; a first elastic gasket is arranged between the inner side of the display screen assembly and the bottom side of the fixed support.
Preferably, a second elastic gasket is arranged between the peripheral side of the fixed support and the connecting end of the display screen assembly.
Preferably, the fixing bracket comprises an extension cylinder which extends from the bottom side to a direction away from the display screen assembly and is provided with a containing cavity, and the speed reducer is fixed in the containing cavity.
Compared with the prior art, the invention has the beneficial effects that: the invention adopts the rotary motion of the second friction plate relative to the first friction plate and contacts and extrudes the first friction plate to generate counter force, the counter force enables the first friction plate to vibrate and transmits the vibration to the display screen assembly, thereby driving the display screen assembly to vibrate, realizing force feedback and solving the problem that the vibration effect in the prior art is not obvious.
[ description of the drawings ]
FIG. 1 is a perspective view of a haptic feedback device according to one embodiment of the present invention;
FIG. 2 is a cross-sectional view of the haptic feedback device of the present invention taken along line A-A of FIG. 1;
FIG. 3 is an exploded view of a haptic feedback device according to one embodiment of the present invention;
fig. 4 is a cross-sectional view of the first friction plate of the present invention taken along line A-A of fig. 1.
FIG. 5 is a top view of a second friction plate according to one embodiment of the present invention.
Fig. 6 is an assembly schematic diagram of a first friction plate and a second friction plate according to an embodiment of the invention.
FIG. 7 is a schematic illustration of the periodic force generated by the relative movement of the first friction plate and the second friction plate in one direction.
FIG. 8 is a schematic illustration of the periodic force generated by the back and forth relative movement of the first friction plate and the second friction plate according to the present invention.
[ detailed description ] of the invention
The invention will be further described with reference to the drawings and embodiments.
The invention provides a tactile feedback device. Referring to fig. 1-6, the haptic feedback device in this embodiment includes a fixed bracket 30, a display assembly 10 and a power module 20. The display screen assembly 10 is connected with the fixed bracket 30 and is formed with a cavity 40, and the power module 20 is used for driving the display screen assembly 10 to generate vibration to realize force feedback. The display screen assembly 10 is a touch display screen, the power module 20 includes a first friction plate 21, a second friction plate 22 and a power driving device 25, the first friction plate 21 is installed in the cavity 40 and fixedly connected with the display screen assembly 10, the second friction plate 22 is installed in cooperation with the first friction plate 21, and the power driving device 25 is connected with the second friction plate 22.
In this embodiment, the first friction plate 21 includes a main body 213, a through hole 211 penetrating through a central area of the main body 213, and at least one first protrusion 212 extending from an inner wall of the through hole 211, the second friction plate 22 is located in the through hole 211 and is provided with a plurality of second protrusions 221 on an outer side thereof, and a distance between two adjacent second protrusions 221 is the same, in this embodiment, one first protrusion 212 is provided, 24 second protrusions 221 are provided, and the second protrusions 221 protrude toward the first protrusion 212 for being in press contact with the first protrusion 212. The first protrusion 212 and the second protrusion 221 are semi-cylindrical, and when the first friction plate 21 rotates, the first protrusion 212 can be smoothly pressed against the second protrusion 221, but it should be noted that the first protrusion 212 and the second protrusion 221 may also have a triangular prism or a trapezoidal column, and the shape is not limited herein.
Further, when the display screen assembly 10 is touched, the power driving device 25 drives the second friction plate 22 to rotate in one direction relative to the first friction plate 21, so that the second protruding portion 221 contacts and presses the first protruding portion 212 to generate a continuous and periodic acting force, as shown in fig. 7, and the first friction plate 21 vibrates to drive the display screen assembly 10 to vibrate. Moreover, when the power driving device 25 drives the second friction plate 22 to reciprocate relative to the first friction plate 21, the second protrusion 221 and the first protrusion 212 can be contacted and pressed to generate two opposite periodic acting forces, as shown in fig. 8, so that the haptic feedback device of the present invention can generate abundant feedback effects, wherein F represents the acting force generated by the contact and pressing of the second protrusion 221 and the first protrusion 212, and T represents time.
The power module 20 further comprises a speed reducer 24 and a rotating shaft 23 connected with the speed reducer 24, the rotating shaft 23 is fixedly connected with the second friction plate 22, specifically, a mounting hole 222 is formed in the center of the second friction plate 22, and the rotating shaft 23 is inserted into the mounting hole 222 and fixedly connected with the second friction plate 22. The speed reducer 24 is fixed in the fixed bracket 30 and is connected with the power driving device 25, and the power driving device 25 is a rotating motor, so that the power driving device 25 works, the rotating motor rotates, the speed reducer 24 is used for reducing speed and the rotating shaft 23 drives the second friction plate 22 to rotate, so that the second bulge 221 is in extrusion contact with the first bulge 212 to generate vibration, the force feedback is realized, and the vibration sense is generated.
The fixing bracket 30 comprises a bottom side 31 far away from the display screen assembly 10 and a peripheral side 32 surrounding the bottom side 31 and connected with the bottom side 31, the display screen assembly 10 comprises a connecting end 11 connected with the peripheral side 32 of the fixing bracket 30 and an inner side 12 opposite to the bottom side 31 at a certain distance, wherein the cavity 40 is formed by matching the bottom side 31, the peripheral side 32 and the inner side 12, the fixing bracket 30 further comprises an extension cylinder 33 which extends from the bottom side to the direction far away from the display screen assembly 10 and is provided with a containing cavity 330, and the speed reducer 24 is fixed in the containing cavity 330.
In this embodiment, a first resilient gasket 42 is provided between the inner side 12 of the display screen assembly 10 and the bottom side 31 of the stationary bracket 30. A second elastic spacer 41 is provided between the peripheral side 32 of the fixing bracket 30 and the connection end 11 of the display screen assembly 10. The first elastic gasket 42 and the second elastic gasket 41 are annular, the edge of the first elastic gasket 42 is disposed along the edge of the bottom side 31 of the fixing bracket 30, the second elastic gasket 41 is located on the surface of the peripheral side of the fixing bracket 30, the inner side 12 of the display screen assembly 10 is located in the annular first elastic gasket 42, the first friction plate 21 is disposed in the annular first elastic gasket 42, and the thicknesses of the first elastic gasket 42 and the second elastic gasket 41 are 2mm, and further, the elastic support can be provided for the display screen assembly 10 through the first elastic gasket 42 and the second elastic gasket 41, so that impact noise generated in the relative movement process of the display screen assembly 10 and the fixing bracket 30 under the action of the power module 20 is prevented. Here, the thickness of the first elastic pad 42 and the thickness of the second elastic pad 41 may be adjusted according to actual requirements, which is not limited herein.
Also, in order to make the feedback effect of the haptic feedback force better, in some embodiments, the through hole 211 includes a first through hole 215 toward the display screen assembly 10 and a second through hole 216 accommodating the second friction plate 22 and communicating with the first through hole 215, the first through hole 215 having a larger diameter than the second through hole 216. In this way, a space is formed between the first friction plate 21 and the display screen assembly 10 through the first through hole 215, the space (i.e. the first through hole 215) can enable vibration between the first friction plate 21 and the display screen assembly 10 to be more elastic, so that the vibration effect is better, in addition, an extension portion 214 attached to the display screen assembly 10 is further arranged at the side end of the main body 213 of the first friction plate 21 connected with the display screen assembly 10, the contact surface between the first friction plate 21 and the display screen assembly 10 can be increased through the extension portion 214, the first friction plate 21 can drive the display screen assembly 10 to vibrate more effectively, and force feedback is realized.
While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.
Claims (9)
1. A haptic feedback device, characterized by: the touch feedback device comprises a fixed support, a display screen assembly connected with the fixed support and provided with a cavity, and a power module used for driving the display screen assembly to vibrate, wherein the power module comprises a first friction plate fixedly connected with the display screen assembly and positioned in the cavity, a second friction plate in matched contact with the first friction plate to generate contact counter force so as to drive the display screen assembly to vibrate, and a power driving device used for driving the second friction plate to rotate, and the first friction plate comprises a main body, a through hole penetrating through the central area of the main body, and at least one first protruding part extending from the inner wall of the through hole; the second friction plate is positioned in the through hole, and a plurality of second protruding parts which are matched with the first protruding parts for extrusion contact are arranged on the outer side of the second friction plate opposite to the inner wall.
2. A haptic feedback device as recited in claim 1 wherein: the through holes comprise a first through hole facing the display screen assembly and a second through hole containing the second friction plate and communicated with the first through hole, and the diameter of the first through hole is larger than that of the second through hole.
3. A haptic feedback device as recited in claim 1 wherein: the side end of the main body connected with the display screen assembly is also provided with an extension part attached to the display screen assembly.
4. A haptic feedback device as recited in claim 1 wherein: the distance value between every two adjacent second convex parts is the same.
5. A haptic feedback device as recited in claim 1 wherein: the power module further comprises a speed reducer connected with the power driving device and fixed in the fixed support, and a rotating shaft connected with the speed reducer; the rotating shaft is fixedly connected with the second friction plate and drives the second friction plate to rotate.
6. A haptic feedback device as recited in claim 5 wherein: the center of the second friction plate is provided with a mounting hole for the rotating shaft to be inserted.
7. A haptic feedback device as recited in claim 5 wherein: the fixing bracket comprises a bottom side far away from the display screen assembly and a peripheral side surrounding the bottom side and connected with the bottom side, and the display screen assembly comprises a connecting end connected with the peripheral side of the fixing bracket and an inner side opposite to the bottom side and spaced a certain distance; a first elastic gasket is arranged between the inner side of the display screen assembly and the bottom side of the fixed support.
8. A haptic feedback device as recited in claim 7 wherein: and a second elastic gasket is arranged between the periphery of the fixed support and the connecting end of the display screen assembly.
9. A haptic feedback device as recited in claim 7 wherein: the fixed support comprises an extension cylinder which extends from the bottom side to the direction far away from the display screen assembly and is provided with a containing cavity, and the speed reducer is fixed in the containing cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380066.7A CN111538404B (en) | 2019-12-27 | 2019-12-27 | Haptic feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380066.7A CN111538404B (en) | 2019-12-27 | 2019-12-27 | Haptic feedback device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111538404A CN111538404A (en) | 2020-08-14 |
| CN111538404B true CN111538404B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911380066.7A Active CN111538404B (en) | 2019-12-27 | 2019-12-27 | Haptic feedback device |
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| Country | Link |
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| CN (1) | CN111538404B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015064757A (en) * | 2013-09-25 | 2015-04-09 | 京セラディスプレイ株式会社 | Tactile sense transmission type touch panel |
| CN206236012U (en) * | 2016-11-23 | 2017-06-09 | 苏州攀特电陶科技股份有限公司 | Haptic feedback module and button |
| CN108628440A (en) * | 2017-03-23 | 2018-10-09 | 意美森公司 | System for providing sensor and actuation function for touch input device |
| CN209590809U (en) * | 2019-04-15 | 2019-11-05 | 信利光电股份有限公司 | A kind of display module haptic feedback system and vehicle-mounted touch-control display module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101569231B1 (en) * | 2011-06-30 | 2015-11-16 | 삼성전기주식회사 | Piezo Vibration module |
-
2019
- 2019-12-27 CN CN201911380066.7A patent/CN111538404B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015064757A (en) * | 2013-09-25 | 2015-04-09 | 京セラディスプレイ株式会社 | Tactile sense transmission type touch panel |
| CN206236012U (en) * | 2016-11-23 | 2017-06-09 | 苏州攀特电陶科技股份有限公司 | Haptic feedback module and button |
| CN108628440A (en) * | 2017-03-23 | 2018-10-09 | 意美森公司 | System for providing sensor and actuation function for touch input device |
| CN209590809U (en) * | 2019-04-15 | 2019-11-05 | 信利光电股份有限公司 | A kind of display module haptic feedback system and vehicle-mounted touch-control display module |
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| Publication number | Publication date |
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| CN111538404A (en) | 2020-08-14 |
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