CN203981267U - Piezoelectric ceramics spring resonance type vibration sensor - Google Patents
Piezoelectric ceramics spring resonance type vibration sensor Download PDFInfo
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- CN203981267U CN203981267U CN201420413243.3U CN201420413243U CN203981267U CN 203981267 U CN203981267 U CN 203981267U CN 201420413243 U CN201420413243 U CN 201420413243U CN 203981267 U CN203981267 U CN 203981267U
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Abstract
The utility model discloses a kind of piezoelectric ceramics spring resonance type vibration sensor, in the time that piezoelectric ceramics spring resonance type vibration installation of sensors is in electric motor car, once car body is subject to illegal person's the operation such as picking lock or dismounting, the body oscillating that its operation causes, the gravity block that sensor spring top end is installed is formed to corresponding shake, the shake of its gravity block, to pass to the central point of round ceramic piezoelectric patches silvered face by spiral spring, and the vibration that makes round ceramic piezoelectric patches entirety also produce corresponding rule.The mechanical vibration that round ceramic piezoelectric patches produces, will make it produce piezoelectric effect, and the electric signal that its piezoelectric effect produces is exported by its extension line; The effect of above-mentioned gravity block is exactly to strengthen the amplitude that becomes large body oscillating, and amplifying originally with mechanical frame mode is not body amplitude information clearly; Obviously, this piezoelectric ceramics spring resonance type vibration sensor is more responsive, sharper, has effectively promoted electric motor car theftproof performance.
Description
Technical field
The utility model relates to bicycle equipment manufacture field, relates in particular to a kind of piezoelectric ceramics spring resonance type vibration sensor.
Background technology
At present, known electric motor car electronic anti-theft alarm is for obtaining the sensor of vibration information, substantially be all to use ball-type vibration sensor, this sensor is the vibration of electric motor car its car body when stolen, make the contact of rolling and bump of the built-in N of a sensor metal ball, the moment of two metal guide grooves of its rolling in the time that metal ball collides connected circuit, thereby sends vibration information in the mode that is equivalent to switching effect.
This ball-type vibration sensor, needs amplitude its round ball when larger of body oscillating that the collision of rolling just can occur, and the vibration of car body in amplitude hour, and therefore the ball collision that can not occur to roll cannot obtain body amplitude vibration information hour.And it rolls while collision, the switching effect turning on and off of its output can follow without any the rule of waveform or duration, cannot make the vibration information that sensor obtains can reflect the status flag of vibration, thereby limit electronic alarm and realize the application of microcomputer-recognized intelligent fractional analysis, control and burglar alarm.
In sum, how overcoming the technological deficiency of ball-type vibration sensor in prior art, is those skilled in the art's technical matterss urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of piezoelectric ceramics spring resonance type vibration sensor, to address the above problem.
Now can not obtain body oscillating amplitude vibration information hour with ball-type vibration sensor in order to overcome, with and output vibration signal can not reflect the problems such as vibrational state feature, the utility model provides a kind of piezoelectric ceramics spring resonance type vibration sensor.
The technical scheme that the invention for solving the technical problem adopts is:
The utility model provides a kind of piezoelectric ceramics spring resonance type vibration sensor, comprises circular lid (1), is arranged on the circular lid of described sensor is inner and set gradually piezoelectric ceramics sheet (14), piezoelectric sensor assembly (15) from top to bottom; Cavity between the circular lid of described piezoelectric ceramics sheet (14) and described sensor is that piezoelectric sensor assembly is installed inner chamber (4), wherein:
The end face of described piezoelectric ceramics sheet (14) is silver-plated, and it is upper that bottom surface sticks on a copper liner of circle (13), and formation can convert vibration to the piezoelectric element of electric signal;
In described piezoelectric sensor assembly installation inner chamber (4), be also provided with spiral spring (2), gravity block (3), piezoelectric ceramics sheet silvered face wire bonds point (5), piezoelectric ceramics sensor extension line (6), lead-in wire wire hole (7), circular copper liner extension line pad (8) and piezoelectric ceramics sheet silvered face central point (12); The spiral internal diameter of described spiral spring (2) diminishes from top to bottom gradually; An edge wire of welding of described piezoelectric ceramics sheet (14) end face is fixed on piezoelectric ceramics sheet silvered face wire bonds point (5); Weld a wire at the edge of the copper liner of circle (13) and be fixed on circular copper liner extension line pad (8) above, two wires all pass from sensor electrode lead-in wire wire hole (7); The top end of described spiral spring (2) is fixedly connected with a gravity block (3), the central point (12) that the lower end of spring is welded in round piezoelectric ceramics sheet silvered face by the bottom end of described spiral spring (2) is upper, forms the perception to vibration signal and vibration signal is converted to the piezoelectric vibration sensors of electric signal;
Described piezoelectric sensor assembly (15) bottom is also provided with sensor cup dolly (9), the circular fixed orifice of base (10), the fixing step (11) of piezoelectric sensor assembly.
Preferably, the two ends of described sensor cup dolly (9) are provided with 2 circular fixed orifices of symmetrical sensor base (10).
Preferably, described round ceramic piezoelectric patches assembly (15) arranges and is fixed on the fixing step (11) of cup dolly (9).
Compared with prior art, the advantage of the utility model embodiment is: in the time that piezoelectric ceramics spring resonance type vibration installation of sensors is in electric motor car, once car body is subject to illegal person's the operation such as picking lock or dismounting, the body oscillating that its operation causes, the gravity block (3) that sensor spring top end is installed is formed to corresponding violent shake, the shake of its gravity block (3), to pass to by spiral spring (2) body the central point (12) of round ceramic piezoelectric patches silvered face, and the vibration that makes round ceramic piezoelectric patches (14) entirety also produce corresponding rule.The mechanical vibration that round ceramic piezoelectric patches (14) produces, will make it produce piezoelectric effect, and the electric signal that its piezoelectric effect produces is by its extension line (6) output.Due to each vibration of car body, the gravity block (3) that spiral spring (2) and spring top end are installed is produced to progressively attenuation type resonance oscillations, so the electric signal waveform of its output of round ceramic piezoelectric patches (14) will be attenuation type sine wave (Fig. 3) progressively.This sine wave can amplify after also shaping by supplied for electronic shaping circuit, converts pulse signal to.This pulse signal can be directly by the identifications such as single-chip microcomputer and use.Obviously, the effect of above-mentioned gravity block is exactly to strengthen the amplitude that becomes large body oscillating, and amplifying originally with mechanical frame mode is not body amplitude information clearly; So the sensor will be converted into body oscillating pulse information very soon easily, is convenient to subsequent treatment (jingle bell etc. of for example reporting to the police) operation;
Obviously, this piezoelectric ceramics spring resonance type vibration sensor is more responsive, sharper, has effectively promoted electric motor car theftproof performance.
Brief description of the drawings
To closing accompanying drawing embodiment, the utility model is further described below
Fig. 1 is the texture edge cut-open view of the utility model embodiment;
Fig. 2 is the structure top cross-sectional view of the utility model embodiment;
Fig. 3 is the vibration electric signal waveform figure of the utility model embodiment output;
Wherein: the circular lid of sensor (1), spiral spring (2), gravity block (3), piezoelectric sensor assembly is installed inner chamber (4), piezoelectric ceramics sheet silvered face wire bonds point (5), piezoelectric ceramics sensor extension line (6), lead-in wire wire hole (7), circular copper liner extension line pad (8), sensor cup dolly (9), the circular fixed orifice of base (10), piezoelectric sensor assembly is fixed step (11), piezoelectric ceramics sheet silvered face central point (12), circular copper liner (13), piezoelectric ceramics sheet (14), piezoelectric sensor assembly (15).
Embodiment
Referring to Fig. 1, the utility model provides a kind of piezoelectric ceramics spring resonance type vibration sensor, comprises circular lid (1), is arranged on the circular lid of described sensor is inner and set gradually piezoelectric ceramics sheet (14), piezoelectric sensor assembly (15) from top to bottom; Cavity between the circular lid of described piezoelectric ceramics sheet (14) and described sensor is that piezoelectric sensor assembly is installed inner chamber (4), wherein:
The end face of described piezoelectric ceramics sheet (14) is silver-plated, and it is upper that bottom surface sticks on a copper liner of circle (13), and formation can convert vibration to the piezoelectric element of electric signal;
In described piezoelectric sensor assembly installation inner chamber (4), be also provided with spiral spring (2), gravity block (3), piezoelectric ceramics sheet silvered face wire bonds point (5), piezoelectric ceramics sensor extension line (6), lead-in wire wire hole (7), circular copper liner extension line pad (8) and piezoelectric ceramics sheet silvered face central point (12); The spiral internal diameter of described spiral spring (2) diminishes from top to bottom gradually; An edge wire of welding of described piezoelectric ceramics sheet (14) end face is fixed on piezoelectric ceramics sheet silvered face wire bonds point (5); Weld a wire at the edge of the copper liner of circle (13) and be fixed on circular copper liner extension line pad (8) above, two wires all pass from sensor electrode lead-in wire wire hole (7); The top end of described spiral spring (2) is fixedly connected with a gravity block (3), the central point (12) that the lower end of spring is welded in round piezoelectric ceramics sheet silvered face by the bottom end of described spiral spring (2) is upper, forms the perception to vibration signal and vibration signal is converted to the piezoelectric vibration sensors of electric signal;
Described piezoelectric sensor assembly (15) bottom is also provided with sensor cup dolly (9), the circular fixed orifice of base (10), the fixing step (11) of piezoelectric sensor assembly.
Preferably, the two ends of described sensor cup dolly (9) are provided with 2 circular fixed orifices of symmetrical sensor base (10).
Preferably, described round ceramic piezoelectric patches assembly (15) arranges and is fixed on the fixing step (11) of cup dolly (9).
It should be noted that, in the time that piezoelectric ceramics spring resonance type vibration installation of sensors is in electric motor car, once car body is subject to illegal person's the operation such as picking lock or dismounting, the body oscillating that its operation causes, the gravity block (3) that sensor spring top end is installed is formed to corresponding shake, the shake of its gravity block (3), to pass to by spiral spring (2) body the central point (12) of round ceramic piezoelectric patches silvered face, and the vibration that makes round ceramic piezoelectric patches (14) entirety also produce corresponding rule.The mechanical vibration that round ceramic piezoelectric patches (14) produces, will make it produce piezoelectric effect, and the electric signal that its piezoelectric effect produces is by its extension line (6) output.Due to each vibration of car body, the gravity block (3) that spiral spring (2) and spring top end are installed is produced to progressively attenuation type resonance oscillations, so the electric signal waveform of its output of round ceramic piezoelectric patches (14) will be attenuation type sine wave (Fig. 3) progressively.This sine wave can amplify after also shaping by supplied for electronic shaping circuit, converts pulse signal to.This pulse signal can be directly by the identifications such as single-chip microcomputer and use.Again because it exports the width of pulse and it is proportional to continue the output time of pulse and the size of body oscillating and number of times, thereby can supply the different information of computer intelligent electric car burglar alarm as the stolen state of perception, and it is analyzed to the high sensitive sensor judging and process use and (it should be noted that, the above-mentioned technology contents that relates to follow-up signal processing and Single Chip Microcomputer (SCM) program part, belong to common practise, this is repeated no longer one by one).
This is suitable for novel beneficial effect, to make slight vibration and the vibration performance of electric motor car in stolen, can convert the sinusoidal wave electric signal with correlated characteristic to, its sinusoidal wave electric signal is after outer circuits Shape correction, can produce the pulse signal relevant to vibration performance and pulse duration, its signal can be analyzed and process for single-chip microcomputer, and uses for designing electric motor intelligent type electronic anti-theft alarm.In like manner, also can be used as other any occasion that needs perception vibration and vibration performance purposes, use as high vibration transducer responsive and that have pair signal to there is vibration performance requirement.
Introduce the manufacture method of the piezoelectric ceramics spring resonance type vibration sensor in the utility model embodiment below and do detailed description:
A round ceramic piezoelectric patches (14) is silver-plated in the one side of the welding spring of falling pagoda-shaped (2), to strengthen the physical strength of piezoelectric ceramics sheet (14) and to be convenient to welding or the bonding spring of falling pagoda-shaped (2); Piezoelectric ceramics sheet (14) is bonded on a copper liner of circle (13); Make a spiral helicine spring with tinsel, at the welding of end place or a bonding gravity block (3) of the circular top of the spring of falling pagoda-shaped (2); Again the tip of the spring of falling pagoda-shaped (2) is welded or is bonded on piezoelectric ceramics sheet (14) silvered face central point (12); Edge joint weld contact (5) at piezoelectric ceramics sheet (14) silvered face locates to weld a wire, locate to weld a wire at the copper liner edge joint weld of circle contact (8), two wires are passed from the lead-in wire wire hole (7) on circular lid (1); Complete after above-mentioned item, be adhesively fixed on the fixing step (9) of cup dolly (9) being bonded with the copper liner of circle (13) that has welded spiral spring (2) on piezoelectric ceramics sheet (14) and piezoelectric ceramics sheet (14), then circular lid (1) is covered on cup dolly (9), and stick with glue and connect at joint, so far complete the overall package of sensor.Adjust the size of gravity block (3) weight, spiral spring (thickness and the number of coils of 2) Jin Shu Silk, the size of piezoelectric ceramics sheet diameter, can change the sine wave freuqency of sensor output signal, and signal continues duration and the susceptibility to vibration.
The piezoelectric ceramics spring resonance type vibration sensor that the utility model embodiment provides, rational in infrastructure ingenious, induction body oscillating information is more responsive, sharper, and has effectively promoted electric motor car theftproof performance.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a piezoelectric ceramics spring resonance type vibration sensor, it is characterized in that, comprise the circular lid of sensor (1), be arranged on the circular lid of described sensor is inner and set gradually piezoelectric ceramics sheet (14), piezoelectric sensor assembly (15) from top to bottom; Cavity between the circular lid of described piezoelectric ceramics sheet (14) and described sensor is that piezoelectric sensor assembly is installed inner chamber (4), wherein:
The end face of described piezoelectric ceramics sheet (14) is silver-plated, and it is upper that bottom surface sticks on a copper liner of circle (13), and formation can convert vibration to the piezoelectric element of electric signal;
In described piezoelectric sensor assembly installation inner chamber (4), be also provided with spiral spring (2), gravity block (3), piezoelectric ceramics sheet silvered face wire bonds point (5), piezoelectric ceramics sensor extension line (6), lead-in wire wire hole (7), circular copper liner extension line pad (8) and piezoelectric ceramics sheet silvered face central point (12); The spiral internal diameter of described spiral spring (2) diminishes from top to bottom gradually; An edge wire of welding of described piezoelectric ceramics sheet (14) end face is fixed on piezoelectric ceramics sheet silvered face wire bonds point (5); Weld a wire at the edge of the copper liner of circle (13) and be fixed on circular copper liner extension line pad (8) above, two wires all pass from sensor electrode lead-in wire wire hole (7); The top end of described spiral spring (2) is fixedly connected with a gravity block (3), the central point (12) that the lower end of spring is welded in round piezoelectric ceramics sheet silvered face by the bottom end of described spiral spring (2) is upper, forms the perception to vibration signal and vibration signal is converted to the piezoelectric vibration sensors of electric signal;
Described piezoelectric sensor assembly (15) bottom is also provided with sensor cup dolly (9), the circular fixed orifice of base (10), the fixing step (11) of piezoelectric sensor assembly.
2. piezoelectric ceramics spring resonance type vibration sensor as claimed in claim 1, is characterized in that,
The two ends of described sensor cup dolly (9) are provided with 2 circular fixed orifices of symmetrical sensor base (10).
3. piezoelectric ceramics spring resonance type vibration sensor as claimed in claim 1, is characterized in that,
Described round ceramic piezoelectric patches assembly (15) arranges and is fixed on the fixing step (11) of cup dolly (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413243.3U CN203981267U (en) | 2014-07-25 | 2014-07-25 | Piezoelectric ceramics spring resonance type vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413243.3U CN203981267U (en) | 2014-07-25 | 2014-07-25 | Piezoelectric ceramics spring resonance type vibration sensor |
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| Publication Number | Publication Date |
|---|---|
| CN203981267U true CN203981267U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413243.3U Expired - Fee Related CN203981267U (en) | 2014-07-25 | 2014-07-25 | Piezoelectric ceramics spring resonance type vibration sensor |
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| CN (1) | CN203981267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030412A (en) * | 2019-12-04 | 2020-04-17 | 瑞声科技(新加坡)有限公司 | Vibration waveform design method and vibration motor |
| WO2021129834A1 (en) * | 2019-12-27 | 2021-07-01 | 杭州欧贲科技有限公司 | Detector capable of detecting bearing faults in advance |
-
2014
- 2014-07-25 CN CN201420413243.3U patent/CN203981267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030412A (en) * | 2019-12-04 | 2020-04-17 | 瑞声科技(新加坡)有限公司 | Vibration waveform design method and vibration motor |
| WO2021129834A1 (en) * | 2019-12-27 | 2021-07-01 | 杭州欧贲科技有限公司 | Detector capable of detecting bearing faults in advance |
| US11719601B2 (en) | 2019-12-27 | 2023-08-08 | Openextech (Hangzhou) Co., Ltd | Detector capable of detecting bearing faults in advance |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Boliang Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Li Boliang Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20150725 |
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| EXPY | Termination of patent right or utility model |