CN202168046U

CN202168046U - Piezoelectric vibrator

Info

Publication number: CN202168046U
Application number: CN2011202378948U
Authority: CN
Inventors: 柳林; 何杰
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Acoustic Technologies Changzhou Co Ltd
Current assignee: AAC Technologies Pte Ltd
Priority date: 2011-07-07
Filing date: 2011-07-07
Publication date: 2012-03-14
Anticipated expiration: 2021-07-07

Abstract

The utility model relates to a piezoelectric vibrator which comprises a shell frame, a substrate, piezoelectric sheets and a mass block, wherein the substrate is fixed on the shell frame; the piezoelectric sheets are respectively adhered on the upper surface and the lower surface of the substrate; and the mass block is fixed on the piezoelectric sheets. The piezoelectric vibrator further comprises an FPC (Flexible Printed Circuit) board; the FPC board comprises a first sheet-like part, a second part and a third part, wherein the first part is used for inputting an electrical signal; the second part is buckled on the outer surfaces of the piezoelectric sheets on the upper surface and the lower surface of the substrate and is used for electrically connecting the two piezoelectric sheets; and the third part is connected with the first part and the second part and is fixed on the substrate. The piezoelectric vibrator in the structure is electrically connected by adopting the FPC board instead of a traditional guide line; therefore, the height of the piezoelectric vibrator is reduced; the structure is also simple; and the piezoelectric vibrator is easy to use at a client.

Description

Piezoelectric vibrator

[technical field]

The utility model relates to a kind of piezoelectric forces feedback field, relates in particular to a kind of piezoelectric vibrator.

[background technology]

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

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

Piezoelectric vibrator is as the main element that tactile feedback is provided, and its structure is also used quilt improvement gradually with it.The piezoelectric vibrator of correlation technique, it comprises substrate, places the piezoelectric patches on substrate two sides and sticks on the mass on the piezoelectric patches.

Along with the progress of science and technology, the consumer pursues easy to carry and has more the super-thin electronic product of aesthetic feeling, and this just requires the electronic devices and components in the product thinner.And the general inner piezoelectric patches that adopts lead to connect the substrate upper and lower surfaces of existing piezoelectric vibrator certainly will cause the piezoelectric vibrator whole height high like this, and structure is also succinct inadequately, is unfavorable in the super-thin electronic product, using.

Therefore, be necessary to provide a kind of new piezoelectric vibrator to overcome above-mentioned shortcoming.

[utility model content]

The purpose of the utility model is to solve the inner piezoelectric patches that adopts lead to connect the substrate upper and lower surfaces of above-mentioned piezoelectric vibrator; Cause the piezoelectric vibrator whole height high; Structure is succinct inadequately, is unfavorable for the deficiency on the super-thin electronic product, used, and a kind of piezoelectric vibrator is provided:

A kind of piezoelectric vibrator; Comprise the shell frame, be retained on substrate on the shell frame, be attached to the piezoelectric patches of substrate upper and lower surfaces respectively and be retained on the mass on the piezoelectric patches; Said piezoelectric vibrator also comprises the FPC plate, and said FPC plate comprises that the first that is used for signal of telecommunication input, the button of sheet are held in the piezoelectric patches outer surface of substrate upper and lower surfaces and are used to be electrically connected the second portion of two piezoelectric patches and connect first and second portion and be fixed on on-chip third part.

As a kind of improvement of the utility model, establish the first range upon range of conductive layer and second conductive layer in the said FPC plate, also press from both sides between said first conductive layer and second conductive layer and establish an insulating barrier.

As a kind of improvement of the utility model, said first conductive layer and substrate electrically connect, and said second conductive layer and piezoelectric patches electrically connect.

As a kind of improvement of the utility model, said second portion is U type shape.

As a kind of improvement of the utility model, said second portion is held in the piezoelectric patches outer surface of substrate upper and lower surfaces through the elargol clip.

As a kind of improvement of the utility model, the vertical third part of said first.

As a kind of improvement of the utility model, the two ends of said substrate are provided with first fixing hole, and said third part is provided with second fixing hole that cooperates with said first fixing hole.

The beneficial effect of the utility model is: piezoelectric vibrator inside replaces traditional lead to electrically connect through using the FPC plate, and the height of piezoelectric vibrator has reduced like this, and structure is also succinct, and more the aspect user uses on the super-thin electronic product.

[description of drawings]

Fig. 1 is the stereogram of the utility model piezoelectric vibrator preferred embodiment;

Fig. 2 is the exploded view of embodiment among Fig. 1;

Fig. 3 is the stereogram of FPC plate;

Fig. 4 is the internal structure sketch map of FPC plate.

[embodiment]

Below in conjunction with accompanying drawing and execution mode the utility model is described further.

The piezoelectric patches of the piezoelectric vibrator that the utility model provides has inverse piezoelectric effect, i.e. generator tool distortion under the extra electric field effect.Piezoelectric patches is processed by the piezoelectric with piezoelectric effect characteristic; Piezoelectric generally comprises piezoelectric crystal, piezoelectric ceramic, organic polymer piezoelectric, and piezoelectric patches is processed by highly sensitive piezoceramic material in the preferred implementation that the utility model provides.

As depicted in figs. 1 and 2; The utility model provides a kind of piezoelectric vibrator 1, comprise substrate 10, attach substrate 10 upper and lower surfaces piezoelectric patches 11, be fixed on pad 18 that the mass 12 on the piezoelectric patches 11, the shell 14 that is provided with metal base plate 13, the FPC plate 15 that is retained on an end band second fixing hole 151 of substrate 10, pad insulate between mass 12 and piezoelectric patches 11 and fixture 16 and with fixture 16 matching used packing rings 17.

As shown in figures 1 and 3; Said FPC plate 15 comprises that the first 152 that is used for signal of telecommunication input, the button of sheet are held in piezoelectric patches 11 outer surfaces of substrate 10 upper and lower surfaces and are used to be electrically connected the second portion 153 of two piezoelectric patches 11 and connect first 152 with second portion 153 and be fixed on the third part 154 on the substrate 10; Said first 152 vertical third parts 154; Said second portion 153 is U type shape, and it is held in piezoelectric patches 11 outer surfaces of substrate 10 upper and lower surfaces through the elargol clip.

Like Fig. 1 and shown in Figure 4; Establish the first range upon range of conductive layer 155 and second conductive layer 156 in the said FPC plate 15; Also press from both sides between said first conductive layer 155 and second conductive layer 156 and establish an insulating barrier 157; In fact, the another side of said first conductive layer 155 is provided with first insulating barrier 158, and the other one side of said second conductive layer 156 is provided with second insulating barrier 159.Said first conductive layer 155 electrically connects with substrate 10; Said second conductive layer 156 electrically connects with piezoelectric patches 11; Thereby formation circuit loop; After second conductive layer 156 was given the piezoelectric patches 11 input AC signals of telecommunication, piezoelectric patches 11 produced the cyclic bending distortion, produced vibrating effect thereby drive mass 12.

As shown in Figure 2; Said shell 14 is provided with the end 141 that is connected with metal base plate 13 two ends fixings; Said end 141 is provided with diapire 142 and the sidewall 143 vertical with diapire 142, and said diapire 142 is provided with the location hole 1421 of perforation, and metal base plate 13 is retained on the lower surface of said diapire 142 through injection moulding; So this location hole 1421 has also connected metal base plate 13, this location hole 1421 is used for piezoelectric vibrator 1 is fixed to other client.Said sidewall 143 is provided with the 3rd fixing hole 1431, and described the 3rd fixing hole 1431 runs through sidewall 143 in the present embodiment, and reality also can connect.The two ends of said substrate 10 are provided with first fixing hole 101 that cooperates with the 3rd fixing hole 1431; And second fixing hole 151 on the FPC plate 15 cooperates with first fixing hole 101; Fixture 16 is passed above-mentioned the 3rd fixing hole 1431, first fixing hole 101 and second fixing hole 151 to be fixed on FPC plate 15 on the substrate 10; Substrate 10 is fixed on the sidewall 143 of shell 14; Said fixture 16 can be screw, between this fixture 16 and FPC plate 15, also is provided with the packing ring 17 of an electric insulation, its surface of scratch when this packing ring 17 is used for protecting FPC plate 15 to avoid fixture 16 tightening.

Derive and extend the catch 131 of vertical its bottom surface in said metal base plate 13 edges, said catch 131 is used for limiting the amplitude of mass 12.Said FPC plate 15 comprises the first 152 that is retained on third part 154 with vertical this third part 154 of substrate 10 1 ends through fixture 16; And be connected the second portion 153 that is U type shape with third part 154; Said first 152 is used for to piezoelectric vibrator 1 input electrical signal, the piezoelectric patches 11 of second portion 153 fastening substrates 10 upper and lower surfaces of said U type, and used electric wire to remove to connect the piezoelectric patches 11 of substrate 10 upper and lower surfaces in the past; Cause piezoelectric vibrator 1 whole height high; Structure is succinct inadequately, not only solves these shortcomings after adopting the second portion 153 of this U type, and is beneficial to suitability for industrialized production more.

Above-described only is the preferred embodiments of the utility model; Should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; Can also make improvement, but these all belong to the protection range of the utility model.

Claims

1. piezoelectric vibrator; Comprise the shell frame, be retained on substrate on the shell frame, be attached to the piezoelectric patches of substrate upper and lower surfaces respectively and be retained on the mass on the piezoelectric patches; It is characterized in that: said piezoelectric vibrator also comprises the FPC plate, and said FPC plate comprises that the first that is used for signal of telecommunication input, the button of sheet are held in the piezoelectric patches outer surface of substrate upper and lower surfaces and are used to be electrically connected the second portion of two piezoelectric patches and connect first and second portion and be fixed on on-chip third part.

2. piezoelectric vibrator according to claim 1 is characterized in that: establish the first range upon range of conductive layer and second conductive layer in the said FPC plate, also press from both sides between said first conductive layer and second conductive layer and establish an insulating barrier.

3. piezoelectric vibrator according to claim 2 is characterized in that: said first conductive layer and substrate electrically connect, and said second conductive layer and piezoelectric patches electrically connect.

4. piezoelectric vibrator according to claim 1 is characterized in that: said second portion is U type shape.

5. piezoelectric vibrator according to claim 4 is characterized in that: said second portion is held in the piezoelectric patches outer surface of substrate upper and lower surfaces through the elargol clip.

6. piezoelectric vibrator according to claim 1 is characterized in that: the vertical third part of said first.

7. piezoelectric vibrator according to claim 1 is characterized in that: the two ends of said substrate are provided with first fixing hole, and said third part is provided with second fixing hole that cooperates with said first fixing hole.