CN103700365A - Electric buzzer - Google Patents
Electric buzzer Download PDFInfo
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- CN103700365A CN103700365A CN201310684114.8A CN201310684114A CN103700365A CN 103700365 A CN103700365 A CN 103700365A CN 201310684114 A CN201310684114 A CN 201310684114A CN 103700365 A CN103700365 A CN 103700365A
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Abstract
The invention discloses an electric buzzer, which is characterized in that a control circuit board is fixedly arranged above a base; a middle housing covers the base; an upper housing is fixedly arranged above the middle housing, and the center of the upper housing is downwards provided with a cylindrical boss of which the inner cavity is in the shape of an inverted cone; through holes annularly distributed around the cylindrical boss are formed in the upper end face of the upper housing; a partition plate is arranged in the middle housing; the center of the partition plate is upwards provided with a conical boss of which the inner cavity is in the shape of the inverted cone, so that an echo cavity is formed between the partition plate and the upper housing; a lower housing is fixedly arranged in the middle housing and located below the partition plate, so that a vibration cavity is formed between the middle housing and the partition plate, and the vibration cavity is communicated with the echo cavity through the inner cavity of the conical boss; a buzzing piece is located in the vibration cavity and connected with the output end of the control circuit board; leads pass through the base and are connected with the power end of the control circuit board. According to the electric buzzer disclosed by the invention, sound processing is performed on an audio signal by utilizing the independent echo cavity, and therefore, the sound effect of a product is enhanced.
Description
Technical field
The invention belongs to alarm equipment technical field, be specifically related to a kind of electronic buzzer.
Background technology
Vehicle-mounted alarm system is along with the expansion of application region, scope and improving constantly of vehicle performance and technical merit, and existing hummer is difficult to satisfy the demand.Particularly higher to the reliability requirement of hummer under the strong condition of rugged surroundings, jerk.
Summary of the invention
The technical matters that the present invention solves: design a kind of electronic buzzer, adopt COMS digital integration logic control chip to produce sound oscillator signal, utilize independently echo chamber to carry out sound equipment processing to sound signal, meet the reliably working of product under rugged surroundings, accommodative ability of environment is strong, is particularly suitable for high-end vehicle, cross-country vehicle, heavy-duty car and creeper truck and supports the use.
Technical solution of the present invention: a kind of electronic buzzer, comprises upper encloser, middle case, lower encioser and base; Described base top is fixed with control circuit board, and middle case is sleeved on base; Described upper encloser is fixed on the top of middle case, and under upper encloser mediad, has the cylindrical boss that an inner chamber is back taper, has annular spread at cylindrical boss through hole around on the upper surface of upper encloser; In described middle case, there is dividing plate, and on the mediad of dividing plate, there is the conical boss that an inner chamber is back taper, make to form between dividing plate and upper encloser an echo chamber; Described lower encioser is fixed in middle case and is positioned at the below of dividing plate, make to form one between case and dividing plate and vibrate chamber, and vibration chamber communicates with echo chamber by the inner chamber of conical boss, it is indoor and be connected with control circuit board output terminal that buzzing sheet is positioned at vibration cavity, and lead-in wire is connected with the power end of control circuit board through base.
Described middle case outer wall middle part is shaped with external thread, and mounting nuts is sleeved on external thread.
On described control circuit board, there is COMS digital integration logic control chip, filter circuit of pressure-stabilizing, coupled circuit, power amplifier and pressure-raising circuit; The input end of described mu balanced circuit is connected with lead-in wire, the output terminal of mu balanced circuit is connected with the input end of COMS digital integration logic control chip, the input end of the output termination coupled circuit of COMS digital integration logic control chip, the input end of the output termination power amplifier of coupled circuit, the input end of the output termination pressure-raising circuit of power amplifier, the output termination buzzing sheet of pressure-raising circuit.
On described control circuit board, have anti-Ji and connect anti-holding circuit, the input end of mu balanced circuit connects anti-holding circuit by anti-Ji and is connected with lead-in wire.
On described COMS digital integration logic control chip, be connected with oscillation frequency Circuit tuning, described COMS digital integration logic control chip is CD4093 digital integration logical general chip.
The advantage that the present invention compared with prior art has and effect:
1, the present invention adopts COMS digital integration logic control chip as sound signal oscillation source, makes integrated circuit to complete under identical function condition component number minimum, has improved reliability, has dwindled volume, has improved whole anti-vibration, impact property.Meet the reliably working of product under rugged surroundings, strengthen accommodative ability of environment.
2, the present invention structurally subregion arrange, make sound output isolated with control circuit, utilize independently echo chamber to carry out sound equipment processing to sound signal.Audio oscillator signal is controlled buzzing sheet and is produced the sound, and sound vibration signal through echo chamber independently, carries out echo processing to acoustics again, has strengthened the effects,sound of product.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is circuit block diagram of the present invention,
Fig. 3 is contour structures schematic diagram of the present invention.
Embodiment
1,2,3 a kind of embodiment of the present invention is described by reference to the accompanying drawings.
An electronic buzzer, comprises upper encloser 1, middle case 2, lower encioser 5 and base 8; Described base 8 tops are fixed with control circuit board 7, and middle case 2 is sleeved on base 8; Described upper encloser 1 is fixed on the top of middle case 2, and has the cylindrical boss 10 that an inner chamber is back taper under upper encloser 1 mediad, has annular spread at cylindrical boss 10 through hole 13 around on the upper surface of upper encloser 1; In described middle case 2, there is dividing plate 11, and on the mediad of dividing plate 11, there is the conical boss 12 that an inner chamber is back taper, make to form between dividing plate 11 and upper encloser 1 an echo chamber 6; Described lower encioser 5 is fixed in middle case 2 and is positioned at the below of dividing plate 11, make to form one between case 2 and dividing plate 11 and vibrate chamber 14, and vibration chamber 14 communicates with echo chamber 6 by the inner chamber of conical boss 12, buzzing sheet 3 is positioned at vibration chamber 14 and is connected with control circuit board 7 output terminals, and lead-in wire 9 is connected with the power end of control circuit board 7 through base 8.Described middle case 2 outer wall middle parts are shaped with external thread 15, and mounting nuts 4 is sleeved on external thread 15.
On described control circuit board 7, there is anti-Ji and meet anti-holding circuit V1, COMS digital integration logic control chip CD4093, filter circuit of pressure-stabilizing LN7809, C1, C2, C3, C4, coupled circuit C7, R4, power amplifier V2, V3 and pressure-raising circuit L; The input end of described mu balanced circuit connects anti-holding circuit by anti-Ji and is connected with lead-in wire 9; the output terminal of mu balanced circuit is connected with the input end of COMS digital integration logic control chip; the input end of the output termination coupled circuit of COMS digital integration logic control chip; the input end of the output termination power amplifier of coupled circuit; the input end of the output termination pressure-raising circuit of power amplifier, the output termination buzzing sheet of pressure-raising circuit.On described COMS digital integration logic control chip, be connected with oscillation frequency Circuit tuning, described COMS digital integration logic control chip is CD4093 digital integration logical general chip.
Principle of work: after working power is connected by lead-in wire 9, first by the integrated logic control circuit CD4093 of cmos digital, produce sound signal oscillation source, sound signal oscillation source is through coupled circuit C7, after R4 coupling, pass through again triode V2, V3 power amplification, and tripod inductance L is carried out voltage lifting, promote buzzing sheet 3 vibration soundings, acoustic signals enters echo chamber 6 by the conical internal cavity of conical boss 12, conical internal cavity through cylindrical boss 10 produces repeatedly acoustic reflection, form echo sound wave, utilize echo that primary sound is strengthened, make whole structure produce reverberation from through hole 12 outputs.
The sound of the present invention, directly by buzzing sheet vibration output, is not processed sound but take to increase independently echo chamber again, echogenicity sound equipment, the effects,sound of enhancing product.On described COMS digital integration logic control chip CD4093, be connected with oscillation frequency Circuit tuning R2, R3, C6, R5, R6, C5, for adjusting the oscillation frequency of sound signal oscillation source, to meet the request for utilization of different automobile types.
Above-described embodiment, is preferred embodiment of the present invention, is not used for limiting the scope of the present invention, thus all equivalent variations of being done with content described in the claims in the present invention, within all should being included in the claims in the present invention scope.
Claims (5)
1. an electronic buzzer, is characterized in that: described hummer comprises upper encloser (1), middle case (2), lower encioser (5) and base (8); Described base (8) top is fixed with control circuit board (7), and middle case (2) is sleeved on base (8); Described upper encloser (1) is fixed on the top of middle case (2), and under upper encloser (1) mediad, there is the cylindrical boss (10) that an inner chamber is back taper, on the upper surface of upper encloser (1), there is annular spread at cylindrical boss (10) through hole (13) around; In described middle case (2), there is dividing plate (11), and on the mediad of dividing plate (11), there is the conical boss (12) that an inner chamber is back taper, make to form an echo chamber (6) between dividing plate (11) and upper encloser (1); Described lower encioser (5) is fixed in middle case (2) and is positioned at the below of dividing plate (11), make to form one between case (2) and dividing plate (11) and vibrate chamber (14), and vibration chamber (14) communicates with echo chamber (6) by the inner chamber of conical boss (12), buzzing sheet (3) is positioned at vibration chamber (14) and is connected with control circuit board (7) output terminal, and lead-in wire (9) is connected with the power end of control circuit board (7) through base (8).
2. a kind of electronic buzzer according to claim 1, is characterized in that: described middle case (2) outer wall middle part is shaped with external thread (15), and mounting nuts (4) is sleeved on external thread (15).
3. a kind of electronic buzzer according to claim 2, is characterized in that: on described control circuit board (7), have COMS digital integration logic control chip, filter circuit of pressure-stabilizing, coupled circuit, power amplifier and pressure-raising circuit; The input end of described mu balanced circuit is connected with lead-in wire (9), the output terminal of mu balanced circuit is connected with the input end of COMS digital integration logic control chip, the input end of the output termination coupled circuit of COMS digital integration logic control chip, the input end of the output termination power amplifier of coupled circuit, the input end of the output termination pressure-raising circuit of power amplifier, the output termination buzzing sheet of pressure-raising circuit.
4. a kind of electronic buzzer according to claim 3, is characterized in that: on described control circuit board (7), have anti-Ji and connect anti-holding circuit, the input end of mu balanced circuit connects anti-holding circuit by anti-Ji and is connected with lead-in wire (9).
5. according to a kind of electronic buzzer described in claim 3 or 4, it is characterized in that: on described COMS digital integration logic control chip, be connected with oscillation frequency Circuit tuning, described COMS digital integration logic control chip is CD4093 digital integration logical general chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684114.8A CN103700365B (en) | 2013-12-13 | 2013-12-13 | A kind of electronic buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310684114.8A CN103700365B (en) | 2013-12-13 | 2013-12-13 | A kind of electronic buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103700365A true CN103700365A (en) | 2014-04-02 |
| CN103700365B CN103700365B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310684114.8A Active CN103700365B (en) | 2013-12-13 | 2013-12-13 | A kind of electronic buzzer |
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| Country | Link |
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| CN (1) | CN103700365B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505076A (en) * | 2014-11-28 | 2015-04-08 | 常州超音电子有限公司 | Patch type buzzer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085001A1 (en) * | 2000-04-19 | 2004-05-06 | Murata Manufacturing Co., Ltd. | Piezoelectric type electric acoustic converter |
| CN202171947U (en) * | 2011-08-10 | 2012-03-21 | 上海南华机电有限公司 | Electronic buzzer |
| CN203026118U (en) * | 2012-12-31 | 2013-06-26 | 哈尔滨固泰电子有限责任公司 | Basin-shaped frequency-dependent vehicle-mounted electronic horn |
| CN203659421U (en) * | 2013-12-13 | 2014-06-18 | 宝鸡众力通用电器有限公司 | Electronic buzzer |
-
2013
- 2013-12-13 CN CN201310684114.8A patent/CN103700365B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040085001A1 (en) * | 2000-04-19 | 2004-05-06 | Murata Manufacturing Co., Ltd. | Piezoelectric type electric acoustic converter |
| CN202171947U (en) * | 2011-08-10 | 2012-03-21 | 上海南华机电有限公司 | Electronic buzzer |
| CN203026118U (en) * | 2012-12-31 | 2013-06-26 | 哈尔滨固泰电子有限责任公司 | Basin-shaped frequency-dependent vehicle-mounted electronic horn |
| CN203659421U (en) * | 2013-12-13 | 2014-06-18 | 宝鸡众力通用电器有限公司 | Electronic buzzer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505076A (en) * | 2014-11-28 | 2015-04-08 | 常州超音电子有限公司 | Patch type buzzer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103700365B (en) | 2016-05-25 |
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