CN202134201U - Square piezoelectric type squealer - Google Patents
Square piezoelectric type squealer Download PDFInfo
- Publication number
- CN202134201U CN202134201U CN201120218899U CN201120218899U CN202134201U CN 202134201 U CN202134201 U CN 202134201U CN 201120218899 U CN201120218899 U CN 201120218899U CN 201120218899 U CN201120218899 U CN 201120218899U CN 202134201 U CN202134201 U CN 202134201U
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- CN
- China
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- printed board
- square
- piezoelectric
- pins
- shell
- 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 - Lifetime
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- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model discloses a square piezoelectric type squealer, comprising a housing (1), a piezoelectric sheet (2), a printed board (3) and two pins (4), wherein the housing (1) is shaped as a square, an inner wall of a cylinder hole (1-1) is provided with a step used for supporting the piezoelectric sheet (2), four residual angle blocks (1-3) used for supporting the printed board (3) are formed between an open edge of the cylinder hole (1-1) and four interior angles of the housing (1), the two pins are fixed on the external surface of the printed board (3), the two pins (4) are connected with the anode and the cathode of the piezoelectric sheet (2) via leads (5), a front sound chamber is formed between the piezoelectric sheet (2) and a bottom cover, a rear sound chamber is formed between the piezoelectric sheet (2) and the printed board (3), at least one residual angle block (1-3) is arranged to be an angle cavity (1-4), and the angle cavity (1-4) is communicated with the rear sound chamber. On the basis that the size of the housing is not enlarged, sound intensity can be enhanced. The square piezoelectric type squealer belongs to the technological field of squealers.
Description
Technical field
The utility model belongs to the squealer technical field, especially relates to a kind of square piezoelectric type squealer.
Background technology
The square piezoelectric type squealer of prior art comprises that an end has shell, piezoelectric patches, printed board and two pins that opening and the other end have through hole; Described piezoelectric patches is fixing in the enclosure; Described printed board is fixed on the shell aperture place and is positioned at outside the piezoelectric patches; Two pins are fixed on the printed board outside surface, and two pins connect the both positive and negative polarity of piezoelectric patches through lead.Sound chamber before forming between piezoelectric patches and the through hole forms sound chamber, back between piezoelectric patches and the printed board.
There is a kind of square piezoelectric type squealer shell to be square in the middle of the prior art; Shell is axially arranged with a cylindrical hole that is used for ccontaining printed board, piezoelectric patches and pin; Based on cylindrical hole is round; The shell side of being, so just formed four solid remaining hornblocks between cylindrical hole edge of opening and shell interior four jiaos, respectively be provided with axial counterbore on four remaining hornblocks.Because this squealer is a kind of sounding body, is engaged in and is used for sounding on the various products.Every profession and trade is in order to reduce the volume of product at present, and all volume and the intensity of phonation to squealer has higher requirements, thereby present most enterprise all adopts the space that increases sound chamber, shell sizes increase front and back so that reach the intensity of phonation that strengthens squealer.Therefore fail all the time better to be solved, still need enlarge the shell sizes intensity of phonation that is improved, can't satisfy the objective requirement of existing market product.
Summary of the invention
The utility model technical matters to be solved is: a kind of square piezoelectric type squealer that on the basis that does not enlarge shell sizes, also can strengthen intensity of phonation is provided.
The technical scheme that the utility model is taked is: a kind of square piezoelectric type squealer; It comprises that an end has shell, piezoelectric patches, printed board and the two pins that has through hole on the bottom of the cylindrical hole and the other end; Shell is square; Described cylindrical hole inwall be provided with one be used to support piezoelectric patches step; Just formed four remaining hornblocks that are used to support printed board between interior four jiaos of cylindrical hole edge of opening and shell, two pins are fixed on the printed board outside surface, and two pins connect the both positive and negative polarity of piezoelectric patches through lead; Sound chamber before forming between piezoelectric patches and the bottom forms sound chamber, back between piezoelectric patches and the printed board, at least one remaining hornblock is arranged to the angle cavity, and described angle cavity is connected with sound chamber, back.
Described angle cavity is two, is the diagonal angle setting.
Be equipped with a counterbore on the remaining two residues hornblock.
Described two jiaos of cavity places are equipped with a upper surface and remaining hornblock upper surface is the conplane back-up block that is used to support printed board.
Described printed board is provided with at least one vent port.
The beneficial effect of the utility model is: the square piezoelectric type squealer of the utility model does not enlarge on the basis of shell sizes and can strengthen intensity of phonation yet.
As improvement, described two jiaos of cavity places are equipped with a upper surface and remaining hornblock upper surface is the conplane back-up block that is used to support printed board, are convenient to support better printed board.
As improvement, described printed board is provided with at least one vent port, avoids the use of in the process, and flatulence expands and makes the distortion of shell sounding squealer because generate heat.
Description of drawings
Fig. 1 is the square piezoelectric type squealer of a utility model cross-sectional schematic.
Fig. 2 is the square piezoelectric type squealer of a utility model vertical view.
Fig. 3 is the utility model shell vertical view.
Among the figure, 1. shell, 1-1. cylindrical hole, 1-2. through hole, the remaining hornblock of 1-3., 1-31. counterbore, 1-4. angle cavity, 1-41. back-up block, 2. piezoelectric patches, 3. printed board, 3-1. vent port, 4. pin, 5. lead.
Embodiment
Below be the utility model preferred embodiment, but therefore do not limit the protection domain of the utility model.With reference to Fig. 1, Fig. 2, shown in Figure 3; A kind of square piezoelectric type squealer; It comprises that an end has shell 1, piezoelectric patches 2, printed board 3 and the two pins 4 that has through hole 1-2 on the bottom of the cylindrical hole 1-1 and the other end; Shell 1 is square, described cylindrical hole 1-1 inwall be provided with one be used to support piezoelectric patches 2 step, just formed four remaining hornblock 1-3 that are used to support printed board 3 between interior four jiaos of cylindrical hole 1-1 edge of opening and shell 1; Two pins 4 are fixed on printed board 3 outside surfaces, and two pins 4 connect the both positive and negative polarity of piezoelectric patches 2 through lead 5; Sound chamber before forming between piezoelectric patches 2 and the bottom; Form sound chamber, back between piezoelectric patches 2 and the printed board 3; At least one remaining hornblock 1-3 is arranged to angle cavity 1-4, and described angle cavity 1-4 is connected with sound chamber, back, that is: the cylindrical hole 1-1 coboundary at angle cavity 1-4 place is lower than remaining hornblock 1-3 upper surface.
Described angle cavity 1-4 is two, is the diagonal angle setting.
Be equipped with a counterbore 1-31 on the remaining two residues hornblock 1-3.
Described two jiaos of cavity 1-4 places are equipped with the back-up block 1-41 that printed board 3 is supported in a upper surface and parallel being used to of remaining hornblock 1-3 upper surface.
Described printed board 3 is provided with at least one vent port 3-1.In use, generator temperature raises and generates heat, and gas expands, and can discharge from vent port 3-1, avoid shell 1 and deform because expand.
Adopt silica gel bonding between piezoelectric patches 2 of the utility model and the shell 1, glue is added among the counterbore 1-31 of remaining hornblock 1-3, and general piezoelectric patches 2 all is a piezoelectric ceramic piece.
The utility model has directly been treated as the top cover of prior art with printed board 3.Adopt the riveting technology to carry out the synthetic integral body of riveting between pin 4 and the printed board 3, be connected through lead 5 employing welding manners between pin 4 stiff ends and the piezoelectric patches 2.
Claims (5)
1. square piezoelectric type squealer; It comprises that an end has shell (1), piezoelectric patches (2), printed board (3) and the two pins (4) that has through hole (1-2) on the bottom of the cylindrical hole (1-1) and the other end; Shell (1) is square; Described cylindrical hole (1-1) inwall be provided with one be used to support piezoelectric patches (2) step; Just formed four remaining hornblocks (1-3) that are used to support printed board (3) between interior four jiaos of cylindrical hole (1-1) edge of opening and shell (1), two pins (4) are fixed on printed board (3) outside surface, and two pins (4) connect the both positive and negative polarity of piezoelectric patches (2) through lead (5); Sound chamber before forming between piezoelectric patches (2) and the bottom forms sound chamber, back between piezoelectric patches (2) and the printed board (3), it is characterized in that: at least one remaining hornblock (1-3) is arranged to angle cavity (1-4), and described angle cavity (1-4) is connected with sound chamber, back.
2. square piezoelectric type squealer according to claim 1 is characterized in that: remaining angle cavity (1-4) is two, is the diagonal angle setting.
3. square piezoelectric type squealer according to claim 2 is characterized in that: be equipped with a counterbore (1-31) on the described two residues hornblock (1-3).
4. square piezoelectric type squealer according to claim 2 is characterized in that: described two jiaos of cavitys (1-4) locate to be equipped with a upper surface and remaining hornblock (1-3) upper surface is the conplane back-up block (1-41) that is used to support printed board (3).
5. square piezoelectric type squealer according to claim 1 is characterized in that: described printed board (3) is provided with at least one vent port (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120218899U CN202134201U (en) | 2011-06-24 | 2011-06-24 | Square piezoelectric type squealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120218899U CN202134201U (en) | 2011-06-24 | 2011-06-24 | Square piezoelectric type squealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134201U true CN202134201U (en) | 2012-02-01 |
Family
ID=45522964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120218899U Expired - Lifetime CN202134201U (en) | 2011-06-24 | 2011-06-24 | Square piezoelectric type squealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134201U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109753110A (en) * | 2017-11-02 | 2019-05-14 | 南昌欧菲生物识别技术有限公司 | Housing unit and electronic device |
| CN114664033A (en) * | 2022-03-17 | 2022-06-24 | 广州蜂鸟传感科技有限公司 | Packaging structure and packaging process of small alarm |
-
2011
- 2011-06-24 CN CN201120218899U patent/CN202134201U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109753110A (en) * | 2017-11-02 | 2019-05-14 | 南昌欧菲生物识别技术有限公司 | Housing unit and electronic device |
| CN114664033A (en) * | 2022-03-17 | 2022-06-24 | 广州蜂鸟传感科技有限公司 | Packaging structure and packaging process of small alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |
|
| CX01 | Expiry of patent term |