CN204289794U - A kind of high-tension piezoelectric audible device contact pin - Google Patents
A kind of high-tension piezoelectric audible device contact pin Download PDFInfo
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- CN204289794U CN204289794U CN201420662818.5U CN201420662818U CN204289794U CN 204289794 U CN204289794 U CN 204289794U CN 201420662818 U CN201420662818 U CN 201420662818U CN 204289794 U CN204289794 U CN 204289794U
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Abstract
A kind of high-tension piezoelectric audible device contact pin, relates to piezoelectric ceramic technology.Comprise the first paragraph with piezo electrode forceful contact, and with the second segment of installed product grafting, described first paragraph and described second segment are the overall structure being molded over one, and described first paragraph is relative to described second segment bending certain angle, and described second segment is vertical bar shape; Described first paragraph comprises and to ease up slope section by bending the contact section, the escarpment section that are formed successively; Contact section is shaped with the contact with piezo electrode forceful contact, contact section is vertical with described second segment; Flat gradient section is against described second segment, and in the plane at described first paragraph and described second segment place, and relative to the vertical line of described second segment, the angle of inclination of escarpment section is larger than the angle of inclination of flat gradient section.Contact pin resilient beam, two electrodes of the contact energy reliable contacts piezo of contact pin, improve reliability and the useful life of piezoelectricity product.
Description
Technical field
The utility model relates to piezoelectric ceramic technology, espespecially a kind of high-tension piezoelectric audible device contact pin.
Background technology
At present, piezoelectric audible device spring contact pin series products, is applied in white domestic appliances and does prompt tone, widely.Piezoelectric audible device is equipped with by spring contact pin and white domestic appliances, and the signal of telecommunication on white domestic appliances is reached piezoelectric audible device, to convert audible signal instantly prompting user to.Because welding expends time in, efficiency is low, high temperature when especially welding produces harmful effect to the piezoelectric property of the piezoelectric ceramic piece of piezoelectric audible device, therefore the usual mode contacted by pressure makes piezoelectric audible device conduct electricity with spring contact pin to be connected at present, by the mode of grafting, spring contact pin is conducted electricity with used electrical equipment and be connected.
In use, there is a problem in this type of spring contact pin structure, namely the part of spring contact pin contact piezo electrode be linear pattern (as shown in Figure 1, be linear pattern with one section 10 of piezo electrode forceful contact, in Fig. 1 sequence number 20 represent with a section of product grafting is installed), cause elastic force inadequate, especially after a period of time that suffers oppression, elastic force declines; After causing product to use a period of time, spring contact pin just there will be elastic force and declines, and spring contact pin does not reach two electrodes of piezo, occurs that buzzer is opened a way, and causes piezoelectric audible device to occur tone-off bad phenomenon; And this bad product not easily detects, there is the hidden danger come into the market.
Summary of the invention
The utility model technical issues that need to address be overcome existing piezoelectric audible device spring contact pin elastic force not, especially after a period of time that suffers oppression elastic force decline, cause use a period of time rear spring contact pin do not reach piezo two electrodes, there is the deficiency that buzzer is opened a way, a kind of high-tension piezoelectric audible device contact pin is provided.This contact pin resilient beam, makes two electrodes of the contact energy reliable contacts piezo of contact pin, improves reliability and the useful life of piezoelectricity product.
For this reason, a kind of high-tension piezoelectric audible device of the utility model contact pin adopts following technical proposals:
A kind of high-tension piezoelectric audible device contact pin, comprise the first paragraph with piezo electrode forceful contact, and with the second segment of installed product grafting, described first paragraph and described second segment are the overall structure being molded over one, described first paragraph is relative to described second segment bending certain angle, and described second segment is vertical bar shape; Described first paragraph comprises and to ease up slope section by bending the contact section, the escarpment section that are formed successively; Contact section is shaped with the contact with piezo electrode forceful contact, contact section is vertical with described second segment; Flat gradient section is against described second segment, and in the plane at described first paragraph and described second segment place, and relative to the vertical line of described second segment, the angle of inclination of escarpment section is larger than the angle of inclination of flat gradient section.
As the further optimization of technical scheme, described first paragraph and described second segment are in the form of sheets.
As the further optimization of technical scheme, described first paragraph and described second segment are metal clips.
As the further optimization of technical scheme, the bending part of described contact section and described escarpment section, escarpment section and the bending part of flat gradient section and the curved transition of bending part of flat gradient section and described second segment.
As the further optimization of technical scheme, described second segment is shaped with near flat gradient Duan Chu and makes this kind of high-tension piezoelectric audible device contact pin and piezo lid be equipped with the location blade played the role of positioning.
As the further optimization of technical scheme, described second segment is shaped with the enhancing muscle strengthening mechanical strength along its length.
The beneficial effects of the utility model are: contact pin resilient beam, and two electrodes of the contact energy reliable contacts piezo of contact pin, improve reliability and the useful life (its test result refers to table one, table two and table three) of piezoelectricity product.
Table one the utility model is assemblied on buzzer bonnet, buzzer bonnet upper elasticity contrast (using blenometer test elastic force)
Table two bends ageing test, is folded into and can not upsprings or rupture
Table three is actual dresses up product aging test, is assembled to by spring needle on finished product,
After natural conditions place 120 days, then take finished product apart, test elastic force declines and contrasts
Accompanying drawing explanation
Fig. 1 is prior art contact pin schematic diagram;
Fig. 2 is the utility model front view;
Fig. 3 is Fig. 2 vertical view;
Fig. 4 is Fig. 2 left view.
In figure: 1, first paragraph; 11, contact section; 111, contact; 12, escarpment section; 13, flat gradient section; 2, second segment; The angle of inclination of B1, escarpment section; The angle of inclination of B2, flat gradient section; The bending part of R1, described contact section and escarpment section; The bending part of R2, escarpment section and flat gradient section; , R3, flat gradient section and described second segment bending part; 3, blade is located; 4, muscle is strengthened.
Embodiment
Embodiment of the present utility model is introduced below in conjunction with accompanying drawing.
As shown in Figure 2 to Figure 3, a kind of high-tension piezoelectric audible device contact pin, comprise the first paragraph 1 with piezo electrode forceful contact, and with the second segment 2 of installed product grafting, described first paragraph 1 and described second segment 2 are for being molded over the overall structure of one, described first paragraph 1 bends certain angle relative to described second segment 2, and described second segment 2 is vertical bar shape; Described first paragraph 1 comprises and to ease up slope section 13 by bending the contact section 11, the escarpment section 12 that are formed successively; Contact section 11 is shaped with the contact 111 with piezo electrode forceful contact, contact section 11 vertical with described second segment 2; Flat gradient section 13 is against described second segment 2, and in the plane at described first paragraph 1 and described second segment 2 place, and relative to the vertical line of described second segment 2, the angle of inclination B1 of escarpment section 12 is larger than the angle of inclination B2 of flat gradient section 13.
Described first paragraph 1 and described second segment 2 are in the form of sheets.
Described first paragraph 1 and described second segment 2 are metal clips.
Bending part R1, the bending part R2 of escarpment section 12 with flat gradient section 13 of described contact section 11 and escarpment section 12 and the curved transition of bending part R3 of flat gradient section 13 and described second segment 2.
Described second segment 2 is shaped with near section 13 place, flat gradient makes this kind of high-tension piezoelectric audible device contact pin and piezo lid be equipped with the location blade 3 played the role of positioning.
Described second segment 2 is shaped with the enhancing muscle 4 strengthening mechanical strength along its length.
The above is only preferred embodiment of the present utility model, not imposes any restrictions technical scope of the present utility model.The technical staff of the industry, under the inspiration of the technical program, some distortion and amendment can be made, every above embodiment is done according to technical spirit of the present utility model any amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. a high-tension piezoelectric audible device contact pin, comprise the first paragraph with piezo electrode forceful contact, and with the second segment of installed product grafting, described first paragraph and described second segment are the overall structure being molded over one, described first paragraph is relative to described second segment bending certain angle, and described second segment is vertical bar shape; It is characterized in that: described first paragraph comprises and to ease up slope section by bending the contact section, the escarpment section that are formed successively; Contact section is shaped with the contact with piezo electrode forceful contact, contact section is vertical with described second segment; Flat gradient section is against described second segment, and in the plane at described first paragraph and described second segment place, and relative to the vertical line of described second segment, the angle of inclination of escarpment section is larger than the angle of inclination of flat gradient section.
2. according to claim 1 a kind of high-tension piezoelectric audible device contact pin of describing, it is characterized in that: described first paragraph and described second segment are in the form of sheets.
3. according to claim 2 a kind of high-tension piezoelectric audible device contact pin of describing, it is characterized in that: described first paragraph and described second segment are metal clips.
4. according to claim 1 a kind of high-tension piezoelectric audible device contact pin of describing, it is characterized in that: the bending part of described contact section and described escarpment section, escarpment section and the bending part of flat gradient section and the curved transition of bending part of flat gradient section and described second segment.
5. according to claim 1 a kind of high-tension piezoelectric audible device contact pin of describing, it is characterized in that: described second segment is shaped with near flat gradient Duan Chu and makes this kind of high-tension piezoelectric audible device contact pin and piezo lid be equipped with the location blade played the role of positioning.
6. according to claim 1 a kind of high-tension piezoelectric audible device contact pin of describing, it is characterized in that: described second segment is shaped with the enhancing muscle strengthening mechanical strength along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662818.5U CN204289794U (en) | 2014-11-07 | 2014-11-07 | A kind of high-tension piezoelectric audible device contact pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420662818.5U CN204289794U (en) | 2014-11-07 | 2014-11-07 | A kind of high-tension piezoelectric audible device contact pin |
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| Publication Number | Publication Date |
|---|---|
| CN204289794U true CN204289794U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420662818.5U Active CN204289794U (en) | 2014-11-07 | 2014-11-07 | A kind of high-tension piezoelectric audible device contact pin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068139A (en) * | 2017-04-17 | 2017-08-18 | 常州富盛星特电子有限公司 | AI plug-in types buzzer and the method for manufacturing guide pin shell fragment |
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2014
- 2014-11-07 CN CN201420662818.5U patent/CN204289794U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068139A (en) * | 2017-04-17 | 2017-08-18 | 常州富盛星特电子有限公司 | AI plug-in types buzzer and the method for manufacturing guide pin shell fragment |
| CN107068139B (en) * | 2017-04-17 | 2020-12-25 | 常州市富盛星特电子有限公司 | AI plug-in buzzer and method for manufacturing guide pin elastic sheet |
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Legal Events
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523000 Guangdong province Dongguan wangniudunzhen Newton Hengli Village Industrial Park Patentee after: Guangdong wisdom intelligent Polytron Technologies Inc Address before: 523000 Guangdong province Dongguan wangniudunzhen Newton Hengli Village Industrial Park Patentee before: Dongguan Sweet Sound Electronics Co., Ltd. |