CN202057415U - Vibration sensor - Google Patents
Vibration sensor Download PDFInfo
- Publication number
- CN202057415U CN202057415U CN 201120044278 CN201120044278U CN202057415U CN 202057415 U CN202057415 U CN 202057415U CN 201120044278 CN201120044278 CN 201120044278 CN 201120044278 U CN201120044278 U CN 201120044278U CN 202057415 U CN202057415 U CN 202057415U
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- China
- Prior art keywords
- metal hammer
- head
- resilient sleeve
- main body
- sleeve
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Abstract
The utility model discloses a vibration sensor, which comprises an elastic sleeve, a microphone and a metal hammer, wherein one end of the elastic sleeve is provided with a shoulder part; the shoulder part is provided with a sleeve neck; the other end of the elastic sleeve is provided with a sleeve opening; the metal hammer comprises a metal hammer main body, a rod part and a head part; the metal hammer main body is connected with the head part through the rod part; the cross sections of the metal hammer main body and the head part are respectively greater than that of the rod part; the sleeve neck is sheathed onto the outer surface of the rod part; the head part is located in the shoulder part of the elastic sleeve; the metal hammer main body is located outside the sleeve neck of the elastic sleeve; the sleeve opening is sheathed onto the outer surface of the microphone; and a closed cavity is formed among the elastic sleeve, the microphone and the head part of the metal hammer. The vibration sensor disclosed by the utility model has high sensing stability and longer service life.
Description
Technical field
The utility model relates to a kind of vibration transducer, particularly relates to a kind of vibration transducer that is used for anti-theft device for motor vehicle.
Background technology
The employed vibration transducer of existing motor vehicle antitheft device industry is broadly divided into two kinds, a kind of is piezoceramic transducer, the defective of its existence is: influence performance in the production run easily because of bumping, the silver coating of having grown service time in the back sensor takes place aging easily, in addition, this structure mostly adopts increases spring or other materials to produce the vibration force distance on the piezoelectric ceramics piezo, can cause product failure because of vibrating rupture for a long time after therefore using a period of time.
Another kind is weak magnetic spring, be that general configuration is to place on the inductance annex with spring clamp one magnetite, when spring is mobile because of vibration produces, can on inductance, produce a weak electric signal, the defective that this structure exists is: debug difficulties in the production run, the distance of magnetite and induction soldering can influence its electric consistance, and in use for some time, the magnetic of magnetite can weaken so that have influence on the vibrating sensing effect.
The utility model content
The technical problems to be solved in the utility model provides a kind of vibration transducer, and is simple in structure, and the vibration sensing degree is higher, and stability is better, and serviceable life is longer.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of vibration transducer, comprise resilient sleeve, the miaow head, metal hammer, one end of described resilient sleeve is provided with shoulder, described shoulder is provided with the cover neck, the other end of described resilient sleeve is provided with running-on, described metal hammer is by the metal hammer main body, bar portion, head is formed, described metal hammer main body links to each other with described head by described bar portion, the xsect of described metal hammer main body and head is all greater than the xsect of described bar portion, described cover neck is sheathed on the outside surface of described bar portion, described head is positioned at the shoulder of described resilient sleeve, described metal hammer main body is positioned at outside the cover neck of described resilient sleeve, described running-on is sheathed on the outside surface of described miaow head, described resilient sleeve, the miaow head, form an enclosed cavity between the head of metal hammer.
Principle of work is as follows:
The utility model is fixed on the anti theft host, the anti theft host that is installed on when motor vehicle bumps on the motor vehicle can produce interlock, metal hammer is shaken up and down by vibration, because the elasticity of resilient sleeve is better, so when metal hammer is shaken up and down, the cover neck of its metal hammer main body compressing resilient sleeve makes it distortion, and the size of enclosed cavity changes, and causes the interior air pressure of enclosed cavity to change to form air-flow and be converted into electric signal by the miaow head and transfers on the anti theft host.
Preferably, resilient sleeve described in the utility model is a silica gel sheath; Described metal hammer is a "painted-face" character in opera.
As improvement, a miaow head described in the utility model end outwardly is provided with two pins.
The utility model can be done further improvement, promptly also comprises protecting sheathing, and described resilient sleeve, miaow head, metal hammer all are arranged in the described protecting sheathing.Preferably, described protecting sheathing is a plastic casing.
Therefore compared with prior art, the utility model has following beneficial effect:
Mainly the miaow head that the employing technology is very ripe is as the inverted signal parts, and simple in structure, production cost is lower, the vibration sensing degree is higher, and does not directly contact between miaow head and the metal hammer, can not produce mechanical fatigue, therefore the stability of sensing is better, and serviceable life is longer.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is the explosive view of the utility model embodiment;
Fig. 2 is the cut-open view of the utility model embodiment.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Be the embodiment of a kind of vibration transducer described in the utility model as depicted in figs. 1 and 2, comprise resilient sleeve 2, miaow head 1, metal hammer 3, one end of resilient sleeve 2 is provided with shoulder 21, shoulder 21 is provided with cover neck 22, the other end of resilient sleeve 2 is provided with running-on 23, metal hammer 3 is by metal hammer main body 31, bar portion 32, head 33 is formed, metal hammer main body 31 links to each other with head 33 by bar portion 32, the xsect of metal hammer main body 31 and head 33 is all greater than the xsect of bar portion 32, cover neck 22 is sheathed on the outside surface of bar portion 32, head 33 is positioned at the shoulder 21 of resilient sleeve 2, metal hammer main body 31 is positioned at outside the cover neck 22 of resilient sleeve 2, running-on 23 is sheathed on the outside surface of miaow head 1, resilient sleeve 2, miaow head 1, form an enclosed cavity 5 between the head 33 of metal hammer 3.
During use, whole vibration transducer is fixed on the anti theft host, when motor vehicle bumps, the anti theft host that is installed on the motor vehicle can produce interlock, metal hammer 3 on the vibration transducer is vibrated and shake up and down, because the elasticity of resilient sleeve 2 is better, so when metal hammer 3 is shaken up and down, the cover neck 22 that its metal hammer main body 31 can be oppressed resilient sleeve 2 deforms resilient sleeve 2, the size of enclosed cavity 5 changes thereupon, cause air pressure in the enclosed cavity 5 formation air-flow that changes, and be converted into electric signal by miaow head 1 and transfer on the anti theft host.Wherein, because the xsect of metal hammer main body 31 and head 33 is all greater than the xsect of bar portion 32, so when metal hammer 3 was shaken up and down, metal hammer main body 31 and head 33 can not deviate from resilient sleeve 2.
During actual the use, resilient sleeve 2 can adopt silica gel sheath, and its elasticity is better, and is more durable; Metal hammer 3 can adopt "painted-face" character in opera, and inverted signal is more stable.
In the present embodiment, miaow head 1 end outwardly is provided with two pins 11, and is similar with common bipod electronic component, can directly insert pcb board and weld, and physical strength is better.
In order to protect each parts better, present embodiment also comprises protecting sheathing 4, and resilient sleeve 2, miaow head 1, metal hammer 3 all are arranged in the protecting sheathing 4, and protecting sheathing 4 can adopt plastic casing during actual the use.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. vibration transducer is characterized in that: comprise resilient sleeve, miaow head, metal hammer,
One end of described resilient sleeve is provided with shoulder, and described shoulder is provided with the cover neck, and the other end of described resilient sleeve is provided with running-on,
Described metal hammer is made up of metal hammer main body, bar portion, head, described metal hammer main body links to each other with described head by described bar portion, the xsect of described metal hammer main body and head is all greater than the xsect of described bar portion, described cover neck is sheathed on the outside surface of described bar portion, described head is positioned at the shoulder of described resilient sleeve, described metal hammer main body is positioned at outside the cover neck of described resilient sleeve
Described running-on is sheathed on the outside surface of described miaow head, forms an enclosed cavity between the head of described resilient sleeve, miaow head, metal hammer.
2. vibration transducer according to claim 1 is characterized in that: described resilient sleeve is a silica gel sheath.
3. vibration transducer according to claim 1 is characterized in that: described metal hammer is a "painted-face" character in opera.
4. vibration transducer according to claim 1 is characterized in that: a described miaow head end outwardly is provided with two pins.
5. vibration transducer according to claim 1 is characterized in that: also comprise protecting sheathing, described resilient sleeve, miaow head, metal hammer all are arranged in the described protecting sheathing.
6. vibration transducer according to claim 5 is characterized in that: described protecting sheathing is a plastic casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120044278 CN202057415U (en) | 2011-02-14 | 2011-02-14 | Vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120044278 CN202057415U (en) | 2011-02-14 | 2011-02-14 | Vibration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202057415U true CN202057415U (en) | 2011-11-30 |
Family
ID=45017386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120044278 Expired - Fee Related CN202057415U (en) | 2011-02-14 | 2011-02-14 | Vibration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202057415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990623A (en) * | 2015-07-10 | 2015-10-21 | 四川奇胜科技有限公司 | Piezoelectric vibration sensor |
-
2011
- 2011-02-14 CN CN 201120044278 patent/CN202057415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990623A (en) * | 2015-07-10 | 2015-10-21 | 四川奇胜科技有限公司 | Piezoelectric vibration sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20130214 |