CN202759422U - Piezoelectric vibrator - Google Patents
Piezoelectric vibrator Download PDFInfo
- Publication number
- CN202759422U CN202759422U CN 201220305341 CN201220305341U CN202759422U CN 202759422 U CN202759422 U CN 202759422U CN 201220305341 CN201220305341 CN 201220305341 CN 201220305341 U CN201220305341 U CN 201220305341U CN 202759422 U CN202759422 U CN 202759422U
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- Prior art keywords
- vibration section
- piezoelectric vibrator
- fixed support
- piezoelectric
- substrate
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Abstract
The utility model discloses a piezoelectric vibrator which comprises a substrate and a mass block positioned at one side of the substrate. The substrate comprises a fixed support part positioned at the center, a pair of vibration parts extending from the fixed support part to the two sides, and welding parts, wherein the welding parts are bent and extend from the tail ends of the vibration parts and hold the mass block. The surfaces of the vibration parts are provided with piezoelectric patches. The fixed support part protrudes towards the other side of the substrate. According to the piezoelectric vibrator, a cantilever structure is adopted, and the stability and the resonance frequency of the piezoelectric vibrator are improved.
Description
[technical field]
The utility model relates to a kind of vibrator, 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 equipment uses vision and the sense of hearing to provide feedback as the user, such as video playback and audio frequency broadcast etc.In some equipment, motion feedback (such as active force and resistance feedback) and tactile feedback (such as 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 sense organ impression in simulation or virtual environment the inside, can cause the judder of subscriber equipment such 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 palmtop PC, portable game machine, for example some portable game machines can be given the user effect with vibration at joystick, in addition, also can utilize the mode of vibration to carry out the operations such as schedule alarm in the individual palmtop PC.
Piezoelectric vibrator is as providing the main element of tactile feedback, and its structure is also used improvement by gradually with it.The piezoelectric vibrator of correlation technique, it comprises flat substrate, place the piezoelectric patches on substrate two sides and stick on mass on the piezoelectric patches because the coefficient of elasticity K of tabular substrate is larger, resonance frequency is low, vibratory output a little less than, and stability is not good.
Therefore, be necessary to provide a kind of new piezoelectric vibrator to overcome above-mentioned shortcoming.
[utility model content]
The purpose of this utility model is to provide a kind of good stability and the high piezoelectric vibrator of resonance frequency.
The purpose of this utility model is achieved in that
A kind of piezoelectric vibrator, it comprises substrate, is positioned at the mass of a side of described substrate, described substrate comprises fixed support portion, a pair of vibration section from described fixed support portion to the both sides extension and the terminal weld part that bends extension and the described mass of fixing from described vibration section that is positioned at the middle part, the surface of described vibration section is provided with piezoelectric patches, and described fixed support portion protrudes out to the opposite side of described substrate.
As a kind of improvement of the present utility model, described fixed support portion comprises the fixed support surfaces parallel with described vibration section and the connecting portion that connects described fixed support surfaces and vibration section.
As a kind of improvement of the present utility model, described fixed support surfaces is immobilizated in external component as the fulcrum of described piezoelectric vibrator.
As a kind of improvement of the present utility model, described vibration section comprises and lays respectively at the first vibration section, institute fixed support portion both sides and the second vibration section.
As a kind of improvement of the present utility model, during described piezoelectric vibrator work, described the first vibration section is identical with the direction of vibration of the second vibration section.
As a kind of improvement of the present utility model, the upper and lower surface of described each vibration section is equipped with the independent piezoelectric patches that arranges.
As a kind of improvement of the present utility model, described piezoelectric patches comprises the left piezoelectric patches that is arranged on described the first vibration section upper and lower surface and is arranged on the right piezoelectric patches of described the second vibration section upper and lower surface that described left piezoelectric patches is in parallel with described right piezoelectric patches.
As a kind of improvement of the present utility model, form the gap between the piezoelectric patches on the lower surface of described vibration section and the mass.
As a kind of improvement of the present utility model, described weld part is immobilizated in the two ends of described mass.
The beneficial effects of the utility model are: utilize the middle fixed support portion of substrate to connect external component as fulcrum, quality of connection piece two ends, substrate two ends, and left and right sides piezoelectric patches is in parallel, form two cantilever beam structures with common basic point, because the coefficient of elasticity K of cantilever beam structure is less, thereby stability and the resonance frequency of piezoelectric vibrator have been improved.
[description of drawings]
Fig. 1 is the front view of the utility model piezoelectric vibrator;
Fig. 2 is the three-dimensional structure diagram of the substrate of the utility model piezoelectric vibrator;
Fig. 3 is the three-dimensional exploded view of the utility model piezoelectric vibrator.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, the piezoelectric patches 13 that the utility model piezoelectric vibrator 1 comprises substrate 11, is positioned at the mass 12 of described substrate 11 1 sides and is arranged on described substrate 11 upper and lower surfaces forms gap 10 between the piezoelectric patches 13 of the lower surface of described substrate 11 and mass 12.
As shown in Figure 2, described substrate 11 comprise be positioned at middle part and the fixed support portion 111 that protrudes out to the opposite side of substrate 11, from a pair of vibration section 112 that described fixed support portion 111 extends to both sides and the weld parts 113 that extend from the 112 terminal bendings of described vibration section.Described fixed support portion 111 comprises the fixed support surfaces 1110 parallel with described vibration section 112 and connecting portion 111a and the 111b that connects described fixed support surfaces 1110 and vibration section 112.Described vibration section 112 comprises the first vibration section 112a and the second vibration section 112b, and described weld part 113 comprises the first weld part 113a and the second weld part 113b.
Such as Fig. 1, shown in Figure 3, described mass 12 is the cuboid of rule, and described the first weld part 113a and the second weld part 113b are welded on respectively the two ends of described mass 12.Described piezoelectric patches 13 comprises the left piezoelectric patches 13a that is arranged on 112a surface, described the first vibration section and the right piezoelectric patches 13b that is arranged on 112b surface, described the second vibration section, described left piezoelectric patches 13a is in parallel with described right piezoelectric patches 13b, be that described left piezoelectric patches 13a is identical near an end polarity of described fixed support portion 111 with described piezoelectric patches 13b near an end of described fixed support portion 111, described left piezoelectric patches 13a is identical away from an end polarity of described fixed support portion 111 with described piezoelectric patches 13b away from an end of described fixed support portion 111.
The utility model piezoelectric vibrator 1 utilizes the fixed support portion 1111 of substrate 11 middle parts protrusion as basic point, substrate 11 two ends towing rating pieces 12, and left piezoelectric patches 13a is in parallel with right piezoelectric patches 13b, and vibration forms two cantilever beam structures with common basic point in the same way.Because cantilever beam structure relatively other structures has less coefficient of elasticity K, according to the angular frequency formula
Requiring in the situation of same resonance frequency, required mass mass M is less, and simultaneously, the stability of the structure of two ends towing rating piece is better.
Above-described only is a kind of execution mode of the present 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 protection range of the present utility model.
Claims (9)
1. piezoelectric vibrator, it comprises substrate, is positioned at the mass of a side of described substrate, it is characterized in that: described substrate comprises fixed support portion, a pair of vibration section from described fixed support portion to the both sides extension and the terminal weld part that bends extension and the described mass of fixing from described vibration section that is positioned at the middle part, the surface of described vibration section is provided with piezoelectric patches, and described fixed support portion protrudes out to the opposite side of described substrate.
2. piezoelectric vibrator according to claim 1, it is characterized in that: described fixed support portion comprises the fixed support surfaces parallel with described vibration section and the connecting portion that connects described fixed support surfaces and vibration section.
3. piezoelectric vibrator according to claim 2, it is characterized in that: described fixed support surfaces is immobilizated in external component as the fulcrum of described piezoelectric vibrator.
4. piezoelectric vibrator according to claim 1 is characterized in that: described vibration section comprises and lays respectively at the first vibration section, institute fixed support portion both sides and the second vibration section.
5. piezoelectric vibrator according to claim 4 is characterized in that: during described piezoelectric vibrator work, described the first vibration section is identical with the direction of vibration of the second vibration section.
6. piezoelectric vibrator according to claim 4 is characterized in that: the upper and lower surface of described each vibration section is equipped with the independent piezoelectric patches that arranges.
7. piezoelectric vibrator according to claim 4, it is characterized in that: described piezoelectric patches comprises the left piezoelectric patches that is arranged on described the first vibration section upper and lower surface and is arranged on the right piezoelectric patches of described the second vibration section upper and lower surface that described left piezoelectric patches is in parallel with described right piezoelectric patches.
8. piezoelectric vibrator according to claim 4 is characterized in that: form the gap between the piezoelectric patches on the lower surface of described vibration section and the mass.
9. piezoelectric vibrator according to claim 1, it is characterized in that: described weld part is immobilizated in the two ends of described mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305341 CN202759422U (en) | 2012-06-27 | 2012-06-27 | Piezoelectric vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220305341 CN202759422U (en) | 2012-06-27 | 2012-06-27 | Piezoelectric vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759422U true CN202759422U (en) | 2013-02-27 |
Family
ID=47738581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220305341 Expired - Fee Related CN202759422U (en) | 2012-06-27 | 2012-06-27 | Piezoelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759422U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098057A (en) * | 2015-09-14 | 2015-11-25 | 苏州攀特电陶科技股份有限公司 | Novel piezoelectric vibration module |
| CN112838783A (en) * | 2021-01-07 | 2021-05-25 | 歌尔股份有限公司 | Piezoelectric vibration motor |
| CN112838784A (en) * | 2021-01-07 | 2021-05-25 | 歌尔股份有限公司 | Piezoelectric vibration motor |
| CN113237246A (en) * | 2021-04-15 | 2021-08-10 | 成都仙德科技有限公司 | Stirling refrigerating and heating integrated machine |
-
2012
- 2012-06-27 CN CN 201220305341 patent/CN202759422U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098057A (en) * | 2015-09-14 | 2015-11-25 | 苏州攀特电陶科技股份有限公司 | Novel piezoelectric vibration module |
| CN112838783A (en) * | 2021-01-07 | 2021-05-25 | 歌尔股份有限公司 | Piezoelectric vibration motor |
| CN112838784A (en) * | 2021-01-07 | 2021-05-25 | 歌尔股份有限公司 | Piezoelectric vibration motor |
| CN113237246A (en) * | 2021-04-15 | 2021-08-10 | 成都仙德科技有限公司 | Stirling refrigerating and heating integrated machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yong Document name: Notification of Passing Examination on Formalities |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181127 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: AAC Technologies (Singapore) Co., Ltd. Address before: 213167 Changzhou, Jiangsu City, Wujin province summer town villa Patentee before: AAC Optoelectronic (Changzhou) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20210627 |