CN202549271U - Feedback type piezoelectric buzzer - Google Patents
Feedback type piezoelectric buzzer Download PDFInfo
- Publication number
- CN202549271U CN202549271U CN 201220013547 CN201220013547U CN202549271U CN 202549271 U CN202549271 U CN 202549271U CN 201220013547 CN201220013547 CN 201220013547 CN 201220013547 U CN201220013547 U CN 201220013547U CN 202549271 U CN202549271 U CN 202549271U
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- Prior art keywords
- piezoelectric
- feedback type
- buzzer
- type piezoelectric
- piezoelectric buzzer
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- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the field of loudspeaker equipment, and particularly relates to a feedback type piezoelectric buzzer which is provided with a feedback type piezoelectric foil detector and is capable of detecting the working state of the buzzer. The feedback type piezoelectric buzzer comprises a circular plastic shell body provided with an internal cavity, wherein a wire outlet hole which is communicated with the internal cavity is arranged in the side wall of the plastic shell body; and a sound outlet hole is arranged in the top of the plastic shell body. The feedback type piezoelectric buzzer is characterized in that the upper wall of the internal cavity is provided with a piezoelectric ceramic chip for producing a buzzing sound; the piezoelectric foil detector is arranged on the lower wall of the internal cavity right opposite to the lower part of the piezoelectric ceramic chip; and a guide wire which is connected with the piezoelectric ceramic chip and the piezoelectric foil detector stretches out of the wire outlet hole. The utility model provides the feedback type piezoelectric buzzer; the feedback type piezoelectric buzzer is simple in structure; a leading wire is arranged on the side wall of the plastic shell body; meanwhile, the piezoelectric foil detector which plays a role in detecting is arranged; and therefore, the working state of the feedback type piezoelectric buzzer is fed back in time.
Description
Technical field
The utility model belongs to the loudspeaker apparatus field, and particularly a kind of have a reaction type piezoelectric effect sheet, can detect the reaction type piezoelectric buzzer of the duty of hummer.
Background technology
Traditional piezoelectric buzzer; Its piezoelectric diaphragm is fixed on the inside of housing, and draws from bonnet through two metal lead wire welding backs, and the hummer of employing said structure exists in process of production and needs trouble; Be easy to generate the quality problems of rosin joint, sealing-off; Simultaneously piezoelectric buzzer in use for some time, people can't detect its performance, can not guarantee whether piezoelectric buzzer satisfies the requirement of using.
Summary of the invention
To above-mentioned technical matters, it is a kind of simple in structure that the utility model provides, and is provided with lead-in wire at the sidewall of plastic casing, also has been provided with the piezoelectric effect sheet of detection effect simultaneously, feeds back the duty of piezoelectric buzzer timely.
The utility model is realized through following technical scheme:
The reaction type piezoelectric buzzer; It comprises a round plastic housing with internal cavities; The sidewall of described plastic casing is provided with the wire hole that is communicated with internal cavities, and the top of plastic casing is provided with sender, it is characterized in that: the upper wall of described internal cavities is provided with the piezoelectric ceramic piece that is used to sound a buzzer; The lower wall that is right against the internal cavities of piezoelectric ceramic piece below is provided with the piezoelectric effect sheet, stretches out wire hole with piezoelectric ceramic piece with the lead that the piezoelectric effect sheet is connected.
In sum, the utlity model has following advantage:
1, the lead of the utility model stretches out from the sidewall of plastic casing, is convenient to the fixing of people and is connected, and the while has also overcome problems such as the rosin joint, sealing-off of traditional structure, has improved the yield of product;
2, the utility model passes through at plastic casing set inside piezoelectric effect sheet; The positive-effect that is used for piezoelectric ceramics; Duty to piezoelectric ceramic piece detects, and feeds back, and is convenient to people and judges that timely this hummer can satisfy the requirement of environment for use.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the cut-open view of Fig. 1;
Fig. 3 is the side view of Fig. 1;
Among the figure, 1 is plastic casing, and 2 is sender, and 3 is lead, and 4 is piezoelectric ceramic piece, and 5 is the piezoelectric effect sheet, and 6 is wire hole.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further specified.
To reaction type piezoelectric buzzer shown in Figure 3, it comprises a round plastic housing 1 with internal cavities like Fig. 1, and the sidewall of described plastic casing 1 is provided with the wire hole 6 that is communicated with internal cavities; The top of plastic casing 1 is provided with sender 2, and the upper wall of described internal cavities is provided with the piezoelectric ceramic piece 4 that is used to sound a buzzer, and the lower wall that is right against the internal cavities of piezoelectric ceramic piece 4 belows is provided with piezoelectric effect sheet 5; Stretch out wire hole with piezoelectric ceramic piece with the lead that the piezoelectric effect sheet is connected, the piezoelectric effect sheet can produce vibration after experiencing the inner air vibration; Thereby produce certain electric charge output; Thereby detect the duty of piezoelectric ceramic piece, when piezoelectricity honey device operate as normal, the magnitude of voltage of piezoelectric effect sheet feedback signal is greater than 30mV; When the magnitude of voltage of piezoelectric effect sheet feedback during less than 30mV; The acoustic pressure that is piezoelectric buzzer output can be little, explains that fault has taken place hummer, and it can't satisfy the needs of current environment for use.
In sum, the utlity model has following advantage:
The lead of the utility model stretches out from the sidewall of plastic casing, is convenient to the fixing of people and is connected, and the while has also overcome problems such as the rosin joint, sealing-off of traditional structure, has improved the yield of product;
The utility model is used for the positive-effect of piezoelectric ceramics through at plastic casing set inside piezoelectric effect sheet, the duty of piezoelectric ceramic piece is detected, and feed back, and is convenient to people and judges that timely this hummer can satisfy the requirement of environment for use.
Claims (1)
1. reaction type piezoelectric buzzer; It comprises a round plastic housing with internal cavities; The sidewall of described plastic casing is provided with the wire hole that is communicated with internal cavities, and the top of plastic casing is provided with sender, it is characterized in that: the upper wall of described internal cavities is provided with the piezoelectric ceramic piece that is used to sound a buzzer; The lower wall that is right against the internal cavities of piezoelectric ceramic piece below is provided with the piezoelectric effect sheet, stretches out wire hole with piezoelectric ceramic piece with the lead that the piezoelectric effect sheet is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220013547 CN202549271U (en) | 2012-01-13 | 2012-01-13 | Feedback type piezoelectric buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220013547 CN202549271U (en) | 2012-01-13 | 2012-01-13 | Feedback type piezoelectric buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549271U true CN202549271U (en) | 2012-11-21 |
Family
ID=47169865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220013547 Expired - Fee Related CN202549271U (en) | 2012-01-13 | 2012-01-13 | Feedback type piezoelectric buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549271U (en) |
-
2012
- 2012-01-13 CN CN 201220013547 patent/CN202549271U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170517 Address after: Wujin District of Jiangsu city in Changzhou province 213161 Chang Wu Road No. 801, Changzhou science and Technology City Tianrun building C block 602 Patentee after: CHANGZHOU BESTAR INTELLIGENT TECHNOLOGY CO., LTD. Address before: 213022 Changzhou West District, Jiangsu, the Yellow River West Road, No. 199 Patentee before: BeStar Electronics Industry Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20180113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |