CN2653702Y - Combined sheet type piezoelectric element - Google Patents
Combined sheet type piezoelectric element Download PDFInfo
- Publication number
- CN2653702Y CN2653702Y CN03234780.4U CN03234780U CN2653702Y CN 2653702 Y CN2653702 Y CN 2653702Y CN 03234780 U CN03234780 U CN 03234780U CN 2653702 Y CN2653702 Y CN 2653702Y
- Authority
- CN
- China
- Prior art keywords
- shell
- metal base
- metal
- welded
- utility
- Prior art date
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229910002796 Si–Al Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
The utility model relates to the technical field of piezoelectric component for surface installation, in particular to a combined sheet type piezoelectric component, which consists of an external shell and a piezoelectric chip. The external shell is provided with a cavity whose internal space is provided with the piezoelectric chip. The utility model is mainly characterized in that: the external shell and a metal base 11 with a lug boss are welded into an unity by bottom of a metal frame 10; two sides of the lug boss of the metal base and a nickel coating 13 on bottom of a ceramic chip are welded into an unit; an external electrode lead wire enters into the cavity through the ceramic chip 12 and a through hole of the metal base, and is connected with the electrode of the piezoelectric chip through conductive materials; top face of the metal frame 10 and a metal cover plate 15 are welded into an unit. The utility model has the advantages of strong anti electromagnetic interference, high air tightness, excellent grounding effect and simple manufacturing technique, thus may being suitable for the surface installation of acoustic surface wave component.
Description
Technical field
The utility model relates to the combined sheet type piezoelectric element that a kind of mounted on surface is used.
Background technology
Existing a kind of ceramic package plate piezoelectric element, China Patent No. 00259228, as shown in Figure 1, comprise shell 1 and piezoelectric vibrator 3, cavity 2 is arranged on the shell, and piezoelectric vibrator 3 is in the cavity 2 on the shell, and the electrode of piezoelectric vibrator is bonded in the shell with conductive adhesive 6.On the bottom surface 8 of shell and the side 10 external electrode 9 is arranged, there is an encapsulated epoxy resin layer 4 top of piezoelectric vibrator 3, is separated by film 5 between above-mentioned epoxy resin layer 4 and the piezoelectric vibrator 3.There is the conductive hole 7 that connects the bottom surface at the middle part of the external electrode 9 on the bottom surface 8 of shell 1, is filled with conducting filler in the hole, and this conducting filler is electrically connected the electrode and the external electrode on the shell 9 of piezoelectric vibrator 3.The deficiency of its existence is: the anti-electromagnetic interference performance of ceramic package is not strong, and the ground connection effect is lower, can not satisfy under the severe environmental conditions its air-tightness and the demanding requirement of anti-electromagnetic interference.
The utility model content
The purpose of this utility model is to provide the combined sheet type piezoelectric element that a kind of anti-electromagnetic interference is strong, air-tightness good, ground connection is effective.
The utility model is achieved through the following technical solutions: the composite type piezoelectric element, comprise shell and piezo chips, cavity is arranged on the shell, piezo chips is in the cavity of shell, described shell is an integral body by the bottom surface of metal framework and the metal base weldering of band boss, potsherd in the both sides of metal base boss (or all around) with bottom surface nickel plating is welded into a whole, the outer electrode lead-in wire stretches into inner chamber by the perforation of potsherd and metal base, be connected with the electrode of piezo chips by electric conducting material, the bridge welding of the end face of metal framework and gold-plated or nickel is an integral body.According to the outer electrode quantity on the needs potsherd of electronic devices and components is the 2-40 bar.The sealed knot of outer electrode adopts coupling molybdenum glass sealed knot, guarantees metal shell good air-tightness and insulating properties.The area of metal base boss is bigger, has good ground connection effect.
The beneficial effects of the utility model are that anti-electromagnetic interference is strong, air-tightness is high, the ground connection effect is good, and manufacture craft is simple.
Description of drawings
Fig. 1 is the ceramic package plate piezoelectric element of prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the utility model 4 electrical leads schematic bottom view;
Fig. 4 is a kind of sole arrangement schematic diagram of the utility model 8 electrical leads;
Fig. 5 is the another kind of sole arrangement schematic diagram of the utility model 8 electrical leads.
Embodiment
Among the figure, part 1 is a shell, and part 2 is cavitys, part 3 is piezo chips, and part 4 is epoxy resin layers, and part 5 is films, part 6 is (conduction) binding agents, and part 7 is (conduction) holes, and part 8 is shell bottom surfaces, part 9 is external electrodes, and part 10 is metal frameworks, and part 11 is metal bases of band boss, part 12 is potsherds, part 13 is potsherd nickel coatings, and part 14 is Si-Al wires, and part 15 is metal cover boards.
As shown in Figure 2, the composite type piezoelectric element, comprise shell and piezo chips 3, cavity 2 is arranged on the shell, piezo chips 3 is in the cavity 2, stick together by binding agent 6 and shell, described shell is an integral body by the bottom surface of metal framework 10 with weldering above the metal base 11 of being with boss, nickel coating 13 with potsherd 12 bottom surfaces of boss both sides below the metal base 11 is welded into a whole, outer electrode 9 lead-in wires stretch into inner chamber 2 by the perforation 7 of potsherd 12 and metal base 11, outer electrode 9 is connected by the electrode of electric conducting material Si-Al wire 14 with piezo chips 3, and cover plate 15 welderings of the end face of metal framework 10 and gold-plated or nickel are an integral body.
As shown in Figure 3, potsherd is arranged in the left and right sides of metal base boss, has 4 electrical leads to link to each other with piezo chips in the shell.
As shown in Figure 4, potsherd is arranged in the both sides, front and back of metal base boss, has 8 electrical leads to link to each other with piezo chips in the shell.
As shown in Figure 5, potsherd be arranged in the metal base boss about, around the front and back, have 8 electrical leads to link to each other with piezo chips in the shell.
Claims (2)
1, a kind of combined sheet type piezoelectric element, comprise shell and piezo chips (3), cavity (2) is arranged in the shell, piezo chips (3) is in the cavity (2) of shell, stick together by binding agent (6) and shell, it is characterized in that described shell is by being welded into a whole above the metal base (11) of the bottom surface of metal framework (10) and band boss, nickel coating (13) with potsherd (12) bottom surface of boss both sides below the metal base (11) is welded into an integral body, outer electrode (9) lead-in wire stretches into inner chamber (2) by the perforation (7) of potsherd (12) and metal base (11), outer electrode (9) is connected with the electrode of piezo chips (3) by electric conducting material (14), and the end face of metal framework (10) and metal cover board (15) weldering are an integral body.
2, combined sheet type piezoelectric element according to claim 1, it is characterized in that described potsherd (12) be arranged in metal base (11) boss around, according to the needs of electronic devices and components, the outer electrode (9) on the potsherd (12) has the 2-40 bar to be connected with the electrode of piezo chips (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03234780.4U CN2653702Y (en) | 2003-06-04 | 2003-06-04 | Combined sheet type piezoelectric element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03234780.4U CN2653702Y (en) | 2003-06-04 | 2003-06-04 | Combined sheet type piezoelectric element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653702Y true CN2653702Y (en) | 2004-11-03 |
Family
ID=34326333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN03234780.4U Expired - Fee Related CN2653702Y (en) | 2003-06-04 | 2003-06-04 | Combined sheet type piezoelectric element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653702Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777883A (en) * | 2010-01-11 | 2010-07-14 | 三河奥斯特电子有限公司 | All-metal material packaged type quartz-crystal resonator and preparation process thereof |
-
2003
- 2003-06-04 CN CN03234780.4U patent/CN2653702Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777883A (en) * | 2010-01-11 | 2010-07-14 | 三河奥斯特电子有限公司 | All-metal material packaged type quartz-crystal resonator and preparation process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |