CN201548930U

CN201548930U - Force feedback device

Info

Publication number: CN201548930U
Application number: CN200920260191XU
Authority: CN
Inventors: 何杰; 秦正平; 柳林
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; Shenzhen Meiou Electronics Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; Shenzhen Meiou Electronics Co Ltd
Priority date: 2009-11-09
Filing date: 2009-11-09
Publication date: 2010-08-11
Anticipated expiration: 2019-11-09

Abstract

The utility model relates to a force feedback device, which comprises a casing body, a touch screen and a piezoelectric vibrator, wherein the touch screen is fixedly positioned by the casing body, and the piezoelectric vibrator is attached to the peripheral position of the screen. Besides, the piezoelectric vibrator includes a middle section, a first section and a second section; the first section and the second section extend from two ends of the middle section in the same direction; and a U shape is formed by the middle section, the first section and the second section. As the piezoelectric vibrator is attached to the peripheral position of the touch screen to keep away from the center of the touch screen, the touch screen can be effectively prevented from being broken when in vibration. In addition, the piezoelectric vibrator is comparatively simple in manufacturing and not limited in shape. The U shape can effectively lead vibration of the touch screen to be even, and the force feedback device is comparatively low in cost.

Description

Device for force feedback

[technical field]

The utility model relates to a kind of haptic feedback system, specifically refers to a kind of device for force feedback.

[background technology]

Electronic equipment set manufacturer, particularly portable electric appts manufacturer are always in the experience of constantly improving the user.Traditional equipment uses the vision and the sense of hearing to provide feedback as the user, as video playback and voice playing etc.In some equipment, motion feedback (as active force and resistance feedback) and tactile feedback (as vibration, heat energy) are called as " tactile feedback ", and tactile feedback can offer the stronger experience of user.Particularly, the haptic effect of vibrating effect, vibrating tactile is providing real feedback to cause the sense organ impression in simulation or virtual environment the inside, can cause the judder of subscriber equipment as the explosive effect of game machine the inside, water droplet then can cause less vibration, the demand of this experience is constantly heated.

Tactile feedback is being integrated in the equipment such as mobile phone, individual palm PC, portable game machine, for example some portable game machines can be given the user effect with vibration on operating rod, in addition, also can utilize the mode of vibration to carry out operations such as schedule alarm in the individual palm PC.

Application and popularization for portable set, cost is important driving factors, therefore, in order to produce force feedback, usually use single vibrating motor to realize, but but the giant-screen of this single vibrating motor and the touch-control that is not suitable for becoming more and more popular experience, the user wishes when operating, directly obtain force feedback from touch screen, rather than whole fuselage.

The utility model then provides a kind of force feedback solution of suitable touch screen.

[utility model content]

The purpose of this utility model is to provide device for force feedback a kind of suitable Touch Screen and that can protect screen.

The utility model solves the problems of the technologies described above by the following technical programs:

A kind of device for force feedback, it comprises housing and by the Touch Screen of housing stationary positioned, this device for force feedback also comprises piezoelectric vibrator, this piezoelectric vibrator is sticked at the peripheral position of screen, and piezoelectric vibrator comprises interlude and first section and second section of being extended in the same way by the two ends of interlude, and interlude, first section and second section constitute the U type.

As a kind of improvement, the length that first section length equals second section.

As a kind of improvement, the direction of vibration of piezoelectric vibrator is perpendicular to Touch Screen.

As a kind of improvement, the direction of vibration of piezoelectric vibrator is parallel to Touch Screen.

Compared with prior art, the utlity model has following advantage: piezoelectric vibrator is sticked and avoids Touch Screen central authorities at the peripheral position of Touch Screen, so when vibration, can effectively avoid destroying Touch Screen.In addition, the making of piezoelectric vibrator is comparatively simple, and shape is unrestricted, as the U type in the present embodiment, can make preferably that the vibration of Touch Screen is even, and cost is lower.

[description of drawings]

Fig. 1 is the schematic perspective view of the utility model device for force feedback.

Fig. 2 is the schematic perspective view at another visual angle of the utility model device for force feedback, and subelement is disassembled.

Fig. 3 is the constitutional diagram of Fig. 2.

[embodiment]

Describe concrete structure of the present utility model in detail below in conjunction with accompanying drawing.

The device for force feedback purpose that the utility model provides aims to provide the stronger experience to the user.Particularly, can cause the judder of user-portable electronic equipment screen as the explosive effect of game machine the inside, water droplet then can cause less vibration, perhaps, in user's Touch Screen, in the time of as the click virtual push button, offer the force feedback of user's screen.

Please join Fig. 1, the utility model device for force feedback 10 comprises housing 11 and the Touch Screen 12 of being located by housing 11, in fact, device for force feedback of the present utility model can be regarded as a mobile phone, but be not limited to mobile phone.

Please join Fig. 2 and Fig. 3, Touch Screen 12 is fixed by housing 11, and faces the piezoelectric vibrator 13 that has been sticked on user's the another side at Touch Screen 12.

The principle of work of piezoelectric vibrator is to utilize the piezoelectric effect of material, when being passed into electric current in the piezoelectric, piezoelectric can produce distortion, if the size of electric current or direction change, the capital causes distortion and the deformation direction that degree is different, and this distortion is vibration.

When the user controlled screen, screen acceptance operation also produced electric signal, and this electrical signal transfer is given the signal processing chip of device for force feedback, and process chip is transmitted corresponding electric current to piezoelectric vibrator after with this signal Processing, thereby causes vibration.

In the present embodiment, the deformation direction of piezoelectric vibrator 13 is perpendicular to Touch Screen 12, and as for deformation direction how to control piezoelectric vibrator, this all is the skill that those of ordinary skills understand thoroughly, no longer superfluous chatting in the present embodiment.

In fact, because piezoelectric vibrator 13 is to be sticked on Touch Screen 12, so the athletic meeting of piezoelectric vibrator 13 directly causes the motion of touch screen 12, i.e. vibration, and then, also be feasible if the direction of vibration of piezoelectric vibrator 13 is parallel to Touch Screen 12.

Piezoelectric vibrator 13 comprises interlude 131 and first section 132 and second sections 133 of being extended in the same way by interlude 131 two ends, and interlude, first section, second section are formed the U type.Piezoelectric vibrator 13 is sticked at the periphery of Touch Screen 12.As required, first section with second section length can be identical also can be different.

Piezoelectric vibrator of the present utility model is sticked at the peripheral position of Touch Screen, avoids Touch Screen central authorities, so when vibration, can effectively avoid destroying Touch Screen.

In addition, the making of piezoelectric vibrator is comparatively simple, and shape is unrestricted, as the U type in the present embodiment, can make preferably that the vibration of Touch Screen is even, and cost is lower.

The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned embodiment; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.

Claims

1. device for force feedback, it comprises housing and by the Touch Screen of housing stationary positioned, it is characterized in that: this device for force feedback also comprises piezoelectric vibrator, this piezoelectric vibrator is sticked at the peripheral position of screen, and piezoelectric vibrator comprises interlude and first section and second section of being extended in the same way by the two ends of interlude, and interlude, first section and second section constitute the U type.

2. device for force feedback according to claim 1 is characterized in that: the length that first section length equals second section.

3. device for force feedback according to claim 1 and 2 is characterized in that: the direction of vibration of piezoelectric vibrator is perpendicular to Touch Screen.

4. device for force feedback according to claim 1 and 2 is characterized in that: the direction of vibration of piezoelectric vibrator is parallel to Touch Screen.