CN205177401U - Low frequency buzzer - Google Patents
Low frequency buzzer Download PDFInfo
- Publication number
- CN205177401U CN205177401U CN201520917434.8U CN201520917434U CN205177401U CN 205177401 U CN205177401 U CN 205177401U CN 201520917434 U CN201520917434 U CN 201520917434U CN 205177401 U CN205177401 U CN 205177401U
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- CN
- China
- Prior art keywords
- upper bracket
- piezoelectric vibrator
- lower carriage
- low frequency
- terminal
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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.)
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Abstract
The utility model discloses a low frequency buzzer, close upper bracket and the lower carriage that forms the piezoelectric vibrator cavity including last lower cover, it still is equipped with the lid and closes and form upper bracket extension and the lower carriage extension of being connected the chamber to link to each other respectively with upper bracket and lower carriage, and piezoelectric vibrator cavity internal fixation has piezoelectric vibrator, connects the intracavity and is equipped with the terminal, is equipped with two metal inserting needle that pierce through the terminal on the terminal, and it is interior continuous with piezoelectric vibrator to stretch into the piezoelectric vibrator cavity after each metal inserting needle one end is buckled, and each metal inserting needle's other end level stretches into the connection intracavity. This low frequency buzzer carries out the electrode through the substituting plain conductor of metal inserting needle and draws forth to fix the connection stability who guarantees metal inserting needle through blocking solid terminal pair metal inserting needle connecting the intracavity, the connection chamber is surrounded metal inserting needle and is formed effective protection to metal inserting needle, can reach waterproof effect simultaneously, and this structure can make piezoelectric device's operation more stable, and here utility model is used for piezoelectric device structure field.
Description
Technical field
The utility model relates to piezoelectric device construction applications, particularly relates to a kind of low frequency buzzer.
Background technology
What electronic product electrode lead-out mode was maximum is adopt electronic wire, no exception for piezoelectric device, consider in the movement of the electronic product assembling process of piezoelectric device, use procedure touch, product work time the situation of distortion, often there are the problems such as wire Joint failure occurs, thus cause the using state of piezoelectric device unstable.
Utility model content
For solving the problem, the utility model provides a kind of and connects more stable low frequency buzzer.
The utility model solves the technical scheme that its technical matters adopts:
A kind of low frequency buzzer, comprise the upper bracket and lower carriage that cover up and down and form piezoelectric vibrator cavity, to be connected respectively the upper bracket extension and lower carriage extension that are also provided with and cover and form connection chamber with upper bracket and lower carriage, piezoelectric vibrator cavity internal fixtion has piezoelectric vibrator, the terminal fixed by upper bracket extension and lower carriage extension clamping is provided with in connection chamber, terminal is provided with two metal ferrules penetrating terminal, stretch in piezoelectric vibrator cavity after the bending of each metal ferrule one end and be connected with piezoelectric vibrator, the other end level of each metal ferrule stretches in connection chamber.
Being further used as the improvement of technical solutions of the utility model, in upper bracket extension and/or lower carriage extension, being provided with the groove for fixing terminal.
Be further used as the improvement of technical solutions of the utility model, one end of piezoelectric vibrator is fixed by upper bracket and lower carriage, and the other end of piezoelectric vibrator is by being fixed between the termination of metal ferrule and upper bracket or lower carriage.
Be further used as the improvement of technical solutions of the utility model, upper bracket and lower carriage are circular lid, upper bracket and lower carriage cover fixing after form cylindrical box body, piezoelectric vibrator is respectively at upper bracket and the airtight formation upper cavity of lower carriage and lower chamber.
Be further used as the improvement of technical solutions of the utility model, the circular surface of upper bracket is provided with some sound holes.
Be further used as the improvement of technical solutions of the utility model, each sound hole comprise be arranged at upper bracket circular surface on circle centre position sound hole and with the center of circle on circular surface for each six sound holes on the concentric circle of two, the center of circle.
Be further used as the improvement of technical solutions of the utility model, lower chamber is provided with the air-vent be interlinked to the outside with lower chamber.
Be further used as the improvement of technical solutions of the utility model, air-vent is positioned at the subsides commissure of upper bracket and lower carriage, and the internal diameter of described air-vent is 0.1 ~ 5mm.
The beneficial effects of the utility model: this low frequency buzzer substitutes plain conductor by metal ferrule and carries out electrode extraction; and metal ferrule is fixed to the connective stability ensureing metal ferrule by the terminal fixed in connection chamber; connection chamber forms effective protection around metal ferrule to metal ferrule; can reach the effect of waterproof, this structure can make the operation of piezoelectric device more stable simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment one-piece construction diagrammatic cross-section;
Fig. 2 is the utility model embodiment front view;
Fig. 3 is the utility model embodiment one-piece construction schematic perspective view;
Fig. 4 is the cavity body structure schematic diagram after arranging air-vent in the utility model embodiment.
Embodiment
With reference to Fig. 1 ~ Fig. 4, the utility model is a kind of low frequency buzzer, comprise the upper bracket 11 and lower carriage 12 that cover up and down and form piezoelectric vibrator cavity 1, to be connected respectively the upper bracket extension 21 and lower carriage extension 22 that are also provided with and cover and form connection chamber 2 with upper bracket 11 and lower carriage 12, piezoelectric vibrator cavity 1 internal fixtion has piezoelectric vibrator 5, be provided with in connection chamber 2 and clamp fixing terminal 3 by upper bracket extension 21 and lower carriage extension 22, terminal 3 is provided with two metal ferrules 4 penetrating terminal 3, stretch in piezoelectric vibrator cavity 1 after the bending of each metal ferrule 4 one end and be connected with piezoelectric vibrator 5, the other end level of each metal ferrule 4 stretches in connection chamber 2.
This low frequency buzzer substitutes plain conductor by metal ferrule 4 and carries out electrode extraction; and be fixed by the terminal 3 pairs of metal ferrules 4 fixed in connection chamber 2 connective stability ensureing metal ferrule 4; connection chamber 2 forms effective protection around metal ferrule 4 pairs of metal ferrules 4; can reach the effect of waterproof, this structure can make the operation of piezoelectric device more stable simultaneously.
As the utility model preferred embodiment, the groove for fixing terminal 3 is provided with in upper bracket extension 21 and/or lower carriage extension 22.
The width of groove slightly larger than or equal the width of terminal 3, terminal 3 inserts in groove and is fixed, meanwhile, by engaging between upper bracket extension 21 and lower carriage extension 22, piezoelectric device can be placed on and move or fixedly impacting to metal ferrule 4 in use procedure.
As the utility model preferred embodiment, one end of piezoelectric vibrator 5 is fixed by upper bracket 11 and lower carriage 12, and the other end of piezoelectric vibrator 5 is by being fixed between the termination of metal ferrule 4 and upper bracket 11 or lower carriage 12.
As the utility model preferred embodiment, upper bracket 11 and lower carriage 12 are circular lid, upper bracket 11 and lower carriage 12 cover fixing after form cylindrical box body, piezoelectric vibrator 5 is respectively at upper bracket 11 and the airtight formation upper cavity of lower carriage 12 and lower chamber.
This reliability of structure is ensured by connection chamber 2, and connection chamber 2 comprises upper bracket extension 21, lower carriage extension 22 and terminal 3, and wherein terminal 3 is made up of insulating carrier, and is provided with two metal ferrules 4 in terminal 3.
Terminal 3 is embedded into after in groove, is firmly fixed, can prevents it from moving.In terminal 3, the bending end of metal ferrule 4 contacts with two electrode pressings of piezoelectric vibrator 5; for increasing its reliability; by the bending end of metal ferrule 4 and the electrode welding on piezoelectric vibrator 5 to together with; terminal 3 exit leads to the electrode of piezoelectric vibrator 5 by two thicker metal ferrules 4; metal ferrule 4 forms a connection chamber shielded 2 by upper bracket extension 21 and lower carriage extension 22; metal ferrule 4 is protected; connection chamber 2 has water-proof function; can be direct splashing to above the metal ferrule 4 in connection chamber 2 by anti-sealing, prevent short circuit.
As the utility model preferred embodiment, the circular surface of upper bracket 11 is provided with some sound holes 6.
As the utility model preferred embodiment, each sound hole 6 comprise be arranged at upper bracket 11 circular surface on circle centre position sound hole 6 and with the center of circle on circular surface for each six sound holes 6 on the concentric circle of two, the center of circle.
When piezoelectric device uses as hummer, the mode of a sound hole 6 was set in the past on hummer, its directive property exporting sound is stronger, use in larger space and just must can reach larger acoustic pressure at assigned address, in order to increase the audibility range of hummer, the upper bracket 11 or lower carriage 12 of the piezoelectric device used as hummer do the setting of sound hole 6 as above.
Above-mentioned set-up mode increases the distribution range of sound hole 6 on hummer, distribution range increases to 50% of whole hummer pronunciation face, and be increased to 13 by an original sound hole 6, the area of each sound hole 6 is identical, and be symmetrically distributed, each hummer distribution circle is equidistant.Audibility range after improvement can obviously increase, relatively in the past single sound hole 6 form is set, single sound hole 6 internal diameter that the sound hole 6 after improvement arranges form is less, also can prevent bulk foreign matter from entering sound hole 6, cause noise.
As the utility model preferred embodiment, lower chamber is provided with the air-vent be interlinked to the outside with lower chamber.
As the utility model preferred embodiment, air-vent 7 is positioned at the subsides commissure of upper bracket 11 and lower carriage 12, and the internal diameter of air-vent is 0.1 ~ 5mm.
Low frequency class piezoelectric loudspeaker, in order to reduce the volume of loudspeaker own, ensure again its low-frequency effect, often its lower chamber is closed processes simultaneously.The lower chamber of closed processes can be good at the vibration frequency of reduction own, but the thing followed be airtight after lower chamber in high temperature and low temperature environment, the air heats of lower chamber inside expands and meets cold events, crimp is caused to piezoelectric vibrator, especially work in such a case for a long time, can permanent damage be caused, reduce serviceable life.
An air-vent 7 is provided with at the side opening of lower chamber, after the arranging of air-vent 7 can avoid lower chamber to close completely, the drawback that hummer Long-Time Service brings, farthest can also utilize the air pressure in lower chamber to the constraint of piezoelectric vibrator, make it reduce vibration frequency.
For low frequency buzzer, film strength of shaking is relatively little, if lower chamber is airtight, works and can cause the deformation of piezoelectric vibrator 5 under hot conditions, cause permanent effect to hummer performance.After the lower chamber of airtight hummer is opened an air-vent 7, for the circulation of lower chamber and ambient atmos, after avoiding long-time low temperature or long-time high temperature, the injury that in lower chamber, contraction of gas causes piezoelectric vibrator 5, the internal diameter of air-vent 7 will much smaller than the internal diameter of sound hole 6.
Certainly, the utility model is created and is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (8)
1. a low frequency buzzer, it is characterized in that: comprise the upper bracket and lower carriage that cover up and down and form piezoelectric vibrator cavity, to be connected respectively the upper bracket extension and lower carriage extension that are also provided with and cover and form connection chamber with described upper bracket and lower carriage, described piezoelectric vibrator cavity internal fixtion has piezoelectric vibrator, the terminal fixed by upper bracket extension and lower carriage extension clamping is provided with in described connection chamber, described terminal is provided with two metal ferrules penetrating terminal, stretch in piezoelectric vibrator cavity after each described metal ferrule one end bending and be connected with piezoelectric vibrator, the other end level of each described metal ferrule stretches in connection chamber.
2. low frequency buzzer according to claim 1, is characterized in that: be provided with the groove for fixing terminal in described upper bracket extension and/or lower carriage extension.
3. low frequency buzzer according to claim 1, is characterized in that: one end of described piezoelectric vibrator is fixed by upper bracket and lower carriage, and the other end of described piezoelectric vibrator is by being fixed between the termination of metal ferrule and upper bracket or lower carriage.
4. low frequency buzzer according to claim 1, it is characterized in that: described upper bracket and lower carriage are circular lid, described upper bracket and lower carriage cover fixing after form cylindrical box body, described piezoelectric vibrator is respectively at upper bracket and the airtight formation upper cavity of lower carriage and lower chamber.
5. low frequency buzzer according to claim 4, is characterized in that: the circular surface of described upper bracket is provided with some sound holes.
6. low frequency buzzer according to claim 5, is characterized in that: each described sound hole comprise be arranged at upper bracket circular surface on circle centre position sound hole and with the center of circle on circular surface for each six sound holes on the concentric circle of two, the center of circle.
7. low frequency buzzer according to claim 4, is characterized in that: described lower chamber is provided with the air-vent be interlinked to the outside with lower chamber.
8. low frequency buzzer according to claim 7, is characterized in that: described air-vent is positioned at the subsides commissure of upper bracket and lower carriage, and the internal diameter of described air-vent is 0.1 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520917434.8U CN205177401U (en) | 2015-11-16 | 2015-11-16 | Low frequency buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520917434.8U CN205177401U (en) | 2015-11-16 | 2015-11-16 | Low frequency buzzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205177401U true CN205177401U (en) | 2016-04-20 |
Family
ID=55741359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520917434.8U Active CN205177401U (en) | 2015-11-16 | 2015-11-16 | Low frequency buzzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205177401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336316A (en) * | 2015-11-16 | 2016-02-17 | 肇庆奥迪威传感科技有限公司 | Low-frequency buzzer |
-
2015
- 2015-11-16 CN CN201520917434.8U patent/CN205177401U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336316A (en) * | 2015-11-16 | 2016-02-17 | 肇庆奥迪威传感科技有限公司 | Low-frequency buzzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |