CN110415671A - A kind of electromagnetic buzzer having heat sinking function - Google Patents
A kind of electromagnetic buzzer having heat sinking function Download PDFInfo
- Publication number
- CN110415671A CN110415671A CN201910518155.7A CN201910518155A CN110415671A CN 110415671 A CN110415671 A CN 110415671A CN 201910518155 A CN201910518155 A CN 201910518155A CN 110415671 A CN110415671 A CN 110415671A
- Authority
- CN
- China
- Prior art keywords
- buzzer
- sinking function
- electromagnetic
- heat sinking
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0213—Venting apertures; Constructional details thereof
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention belongs to buzzer technical fields, disclose a kind of electromagnetic buzzer for having heat sinking function, shell is cylinder, interior of shell lower end is packaged with circuit board, circuit board lower end is integrated to be welded with two pins, and spool is equipped among circuit board upper end, is wound with coil on the outside of spool, spool upper end is welded with iron plate, and iron plate upper end is provided with the vibrating membrane being glued with outer casing inner wall；Upper shell offers multiple heat release holes, and heat release hole is uniformly distributed in circular ring shape, and side wall of outer shell opens up multiple inclined ventilating grooves.The present invention above shell by being provided with multiple heat release holes, and heat release hole is penetrating inside and outside, has good heat dissipation performance, and side wall of outer shell offers the heat dissipation effect that ventilating groove further increases buzzer.And by the control system of peripheral hardware, real-time monitoring can be carried out to the working condition of buzzer, when the temperature is excessively high disconnect power supply circuit in inside, avoid because internal temperature it is excessively high caused by buzzer damage or accessory circuit overload the problems such as.
Description
Technical field
The invention belongs to buzzer technical field more particularly to a kind of electromagnetic buzzers for having heat sinking function.
Background technique
Currently, buzzer is a kind of electronics buzzer of integral structure, using DC-voltage supply, it is widely used in counting
It is sent out in the electronic products such as calculation machine, printer, duplicator, alarm, electronic toy, vehicle electronics, telephone set, timer
Acoustic device.Buzzer is broadly divided into piezo buzzer and electromagnetic buzzer two types.Voltage-type buzzer piezoelectric type bee
Ring device is mainly made of multivibrator, piezoelectricity singing piece, impedance matching box and resonant tank, shell etc..Some piezoelectric type buzzings
Light emitting diode is also equipped on device shell.Multivibrator is made of transistor or integrated circuit.After the power is turned on, direct current work
Make voltage, multivibrator starting of oscillation exports the audio signal of opinion, and impedance matching box pushes piezoelectricity singing piece sounding.Electromagnetic type bee
Ring device electromagnetic buzzer is made of oscillator, electromagnetic coil, magnet, vibrating diaphragm and shell etc..After powering on, oscillator
The voice-frequency signalling current of generation makes electromagnetic coil generate magnetic field by electromagnetic coil.Vibrating diaphragm is in electromagnetic coil and magnet
Under interaction, periodically vibration sounding.But existing buzzer does not have heat sinking function, and it is excessively high to be easy to appear internal temperature
The phenomenon that, cause circuit to damage, influence using.And when buzzer internal temperature is excessively high, cannot to buzzer work electricity
Road is cut off in time, lacks defencive function.
In conclusion problem of the existing technology is:
(1) existing buzzer does not have heat sinking function, is easy to appear the excessively high phenomenon of internal temperature, circuit is caused to damage, and influences
It uses.
(2) when buzzer internal temperature is excessively high, cannot the operating circuit to buzzer cut off in time, lack protection
Function.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of electromagnetic buzzers for having heat sinking function.
The invention is realized in this way a kind of electromagnetic buzzer for having heat sinking function is provided with
Shell；
The shell is cylinder, and interior of shell lower end is packaged with circuit board, and circuit board lower end is integrated to be welded with two pins, electricity
Be equipped with spool among the plate upper end of road, be wound with coil on the outside of spool, spool upper end is welded with iron plate, iron plate upper end be provided with
The vibrating membrane that outer casing inner wall is glued；
The upper shell offers multiple heat release holes, and heat release hole is uniformly distributed in circular ring shape, and side wall of outer shell opens up multiple inclinations
Ventilating groove.
Further, for the heat release hole through the inside and outside of buzzer, heat release hole is round hole.
Further, the iron plate that the iron plate uses with a thickness of 0.5mm.
Further, the outer casing inner wall has been screwed temperature sensor, temperature sensor and external control device
Connection.
Has heat dissipation for have an electromagnetic buzzer of heat sinking function another object of the present invention is to provide a kind of
The electromagnetic buzzer control system of function, the electromagnetic buzzer control system for having heat sinking function include:
Power supply module, for providing power supply for buzzer internal circuit；
Detection module, for being detected by temperature sensor to buzzer internal temperature；
Processing module is connect with detection module, work of the signal for being transmitted by processor according to detection module to buzzer
It is controlled as state；
On-off module, connect with processing module and power supply module, for by breaker to the circuit connection state of buzzer into
Row control；
Volume adjusting module is connect with processing module, for the volume of buzzer to be adjusted as needed；
Indicating module is connect with processing module, for intuitively being shown by indicator light to the working condition of buzzer.
Further, the power supply module includes:
Filter unit, for receiving electric main, filter the noise in electric main and by filtered electric main export to
Rectification unit；
Electric main is converted to DC voltage and exported and gives buzzer internal circuit by rectification unit.
Further, the processing module includes:
Default unit, sets for the temperature to buzzer, volume parameters；
Control unit, for issuing control instruction according to control assembly of the parameter preset to buzzer.
Further, the volume adjusting module includes:
Parameter acquiring unit, for receiving the preset volume control parameter of control module；
PWM selecting unit, for transferring the duty cycle information of preset corresponding PWM square wave according to volume control parameter；
PWM output unit, for exporting the PWM square wave of fixed frequency according to duty cycle information to adjust the volume of buzzer.
In conclusion advantages of the present invention and good effect are as follows:
For the present invention by being provided with multiple heat release holes above shell, heat release hole is penetrating inside and outside, has good heat dissipation performance,
Side wall of outer shell offers the heat dissipation effect that ventilating groove further increases buzzer, and by the control system of peripheral hardware, can be right
The working condition of buzzer carries out real-time monitoring, is carried out when the temperature is excessively high by power supply circuit of the breaker to buzzer internal
Disconnect, avoid because internal temperature it is excessively high caused by buzzer damage or accessory circuit overload the problems such as.Pass through volume adjusting module
Intelligent adjusting can be also carried out to the volume of buzzer, be can satisfy different occasions and used.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the electromagnetic buzzer provided in an embodiment of the present invention for having heat sinking function；
Fig. 2 is shell mechanism schematic diagram provided in an embodiment of the present invention；
Fig. 3 is ventilative slot structure schematic diagram provided in an embodiment of the present invention；
In figure: 1, shell；2, iron plate；3, spool；4, coil；5, pin；6, heat release hole；7, vibrating membrane；8, temperature sensor；9,
Circuit board；10, block；11, ventilating groove.
Fig. 4 is the electromagnetic buzzer control system architecture schematic diagram provided in an embodiment of the present invention for having heat sinking function.
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, the electromagnetic buzzer provided in an embodiment of the present invention for having heat sinking function includes: shell
1, iron plate 2, spool 3, coil 4, pin 5, heat release hole 6, vibrating membrane 7, temperature sensor 8, circuit board 9, block 10, ventilating groove
11。
Shell 1 is cylinder, and 1 interior lower end of shell is packaged with circuit board 9, and 9 lower end of circuit board is integrated to be welded with two and draw
Foot 5 is equipped with spool 3 among 9 upper end of circuit board, coil 4 is wound on the outside of spool 3,4 upper end of spool is welded with iron plate 2, iron plate
2 upper ends are provided with the vibrating membrane 7 being glued with 1 inner wall of shell；1 upper end of shell offers multiple heat release holes 6, and heat release hole 6 is in annulus
Shape is uniformly distributed, and 1 wall of shell side opens up multiple inclined ventilating grooves 11.
Preferably, heat release hole 6, through the inside and outside of buzzer, heat release hole 6 is round hole.
Preferably, iron plate 2 is using the iron plate with a thickness of 0.5mm.
Preferably, 1 inner wall of shell has been screwed temperature sensor 8, temperature sensor 8 and external control device
Connection.
As shown in figure 4, another object of the present invention is to provide a kind of for having the electromagnetic buzzer of heat sinking function
The electromagnetic buzzer control system for having heat sinking function, the electromagnetic buzzer control system packet for having heat sinking function
It includes:
Power supply module 401, for providing power supply for buzzer internal circuit；
Detection module 402, for being detected by temperature sensor 8 to buzzer internal temperature；
Processing module 403, connect with detection module, and the signal for being transmitted by processor according to detection module is to buzzer
Working condition is controlled；
On-off module 404, connect with processing module and power supply module, for the circuit connection state by breaker to buzzer
It is controlled；
Volume adjusting module 405, connect with processing module, for the volume of buzzer to be adjusted as needed；
Indicating module 406, connect with processing module, for intuitively being shown by indicator light to the working condition of buzzer.
Further, the power supply module 401 includes:
Filter unit, for receiving electric main, filter the noise in electric main and by filtered electric main export to
Rectification unit；
Electric main is converted to DC voltage and exported and gives buzzer internal circuit by rectification unit.
Further, the processing module 403 includes:
Default unit, sets for the temperature to buzzer, volume parameters；
Control unit, for issuing control instruction according to control assembly of the parameter preset to buzzer.
Further, the volume adjusting module 405 includes:
Parameter acquiring unit, for receiving the preset volume control parameter of control module；
PWM selecting unit, for transferring the duty cycle information of preset corresponding PWM square wave according to volume control parameter；
PWM output unit, for exporting the PWM square wave of fixed frequency according to duty cycle information to adjust the volume of buzzer.
The working principle of the invention is:
The electromagnetic buzzer for having heat sinking function is principle with electromagnetism, under when energization inhales patch vibrating membrane, when no power
It rebounds according to the elastic force of vibrating membrane, therefore piezo buzzer is driven with square wave, electromagnetic type is the driving of 1/2 square wave, when operating
Iron plate vibration can generate certain heat, not only have certain damage to buzzer in this way, but also have very high wind to integrated circuit
Danger, the setting of heat release hole achieve the effect that cooling and heat dissipation so that the heat that iron plate vibration generates is dispersed into air.And in shell
Side wall offers inclined ventilating groove, can be further improved heat dissipation effect.It can be in shell 1 by temperature sensor 8
Temperature carries out real-time monitoring, and will test result and be transmitted to processor, when processor detects that temperature value is greater than parameter preset
When, control breaker disconnects the power supply circuit of buzzer, avoid because internal temperature it is excessively high caused by buzzer damage or attached
The problems such as circuit overloads.Meanwhile control instructions lamp issues warning light, and staff is reminded to pay attention to circuit safety.Pass through volume
Adjustment module can also carry out intelligent adjusting to the volume of buzzer, receive the preset volume control parameter of control module, pass through PWM
Selecting unit transfers the duty cycle information of preset corresponding PWM square wave according to volume control parameter；Pass through PWM output unit
The PWM square wave of fixed frequency is exported to adjust the volume of buzzer according to duty cycle information, be can satisfy different occasions and is used.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (8)
1. a kind of electromagnetic buzzer for having heat sinking function, which is characterized in that the electromagnetic type buzzing for having heat sinking function
Device is provided with
Shell；
The shell is cylinder, and interior of shell lower end is packaged with circuit board, and circuit board lower end is integrated to be welded with two pins, electricity
Be equipped with spool among the plate upper end of road, be wound with coil on the outside of spool, spool upper end is welded with iron plate, iron plate upper end be provided with
The vibrating membrane that outer casing inner wall is glued；
The upper shell offers multiple heat release holes, and heat release hole is uniformly distributed in circular ring shape, and side wall of outer shell opens up multiple inclinations
Ventilating groove.
2. having the electromagnetic buzzer of heat sinking function as described in claim 1, which is characterized in that the heat release hole runs through
Buzzer it is inside and outside, heat release hole is round hole.
3. having the electromagnetic buzzer of heat sinking function as described in claim 1, which is characterized in that the iron plate uses thickness
For the iron plate of 0.5mm.
4. having the electromagnetic buzzer of heat sinking function as described in claim 1, which is characterized in that the outer casing inner wall passes through
Screw is fixed with temperature sensor, and temperature sensor is connect with external control device.
5. a kind of electromagnetic buzzer for having heat sinking function for as described in claim 1-4 any one has heat dissipation
The electromagnetic buzzer control system of function, which is characterized in that the electromagnetic buzzer control system for having heat sinking function
Include:
Power supply module, for providing power supply for buzzer internal circuit；
Detection module, for being detected by temperature sensor to buzzer internal temperature；
Processing module is connect with detection module, work of the signal for being transmitted by processor according to detection module to buzzer
It is controlled as state；
On-off module, connect with processing module and power supply module, for by breaker to the circuit connection state of buzzer into
Row control；
Volume adjusting module is connect with processing module, for the volume of buzzer to be adjusted as needed；
Indicating module is connect with processing module, for intuitively being shown by indicator light to the working condition of buzzer.
6. having the electromagnetic buzzer control system of heat sinking function as claimed in claim 5, which is characterized in that the power supply
Module includes:
The filter unit filters the noise in electric main and filtered electric main is defeated for receiving electric main
Out to rectification unit；
Electric main is converted to DC voltage and exported by the rectification unit gives buzzer internal circuit.
7. having the electromagnetic buzzer control system of heat sinking function as claimed in claim 5, which is characterized in that the processing
Module includes:
Default unit, sets for the temperature to buzzer, volume parameters；
Control unit, for issuing control instruction according to control assembly of the parameter preset to buzzer.
8. having the electromagnetic buzzer control system of heat sinking function as claimed in claim 5, which is characterized in that the volume
Adjustment module includes:
Parameter acquiring unit, for receiving the preset volume control parameter of control module；
PWM selecting unit, for transferring the duty cycle information of preset corresponding PWM square wave according to volume control parameter；
PWM output unit, for exporting the PWM square wave of fixed frequency according to duty cycle information to adjust the volume of buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518155.7A CN110415671A (en) | 2019-06-14 | 2019-06-14 | A kind of electromagnetic buzzer having heat sinking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910518155.7A CN110415671A (en) | 2019-06-14 | 2019-06-14 | A kind of electromagnetic buzzer having heat sinking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110415671A true CN110415671A (en) | 2019-11-05 |
Family
ID=68359159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910518155.7A Pending CN110415671A (en) | 2019-06-14 | 2019-06-14 | A kind of electromagnetic buzzer having heat sinking function |
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| Country | Link |
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| CN (1) | CN110415671A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744710A (en) * | 2021-08-16 | 2021-12-03 | 江苏鑫长隆机电有限公司 | Sound production adjusting device and sound production adjusting method of magnetic type buzzer for instrument equipment |
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|---|---|---|---|---|
| JP2001092465A (en) * | 1999-09-24 | 2001-04-06 | Yazaki Corp | Buzzer ringing device |
| DE102008041505A1 (en) * | 2008-08-25 | 2010-03-04 | Clarton Horn S.A. | sound generator |
| CN101751917A (en) * | 2008-12-11 | 2010-06-23 | 沃洛汽车配件公司 | Electropneumatic horn with air venting channels |
| JP2014006396A (en) * | 2012-06-25 | 2014-01-16 | Panasonic Corp | Alarm sound drive circuit |
| CN104916277A (en) * | 2015-06-11 | 2015-09-16 | 福建新大陆支付技术有限公司 | Volume-adjustable passive magnetoelectric buzzer drive circuit and method |
| CN107680575A (en) * | 2016-08-02 | 2018-02-09 | 重庆达标电子科技有限公司 | A kind of buzzer with store-memory function |
| CN207268933U (en) * | 2017-08-30 | 2018-04-24 | 温州腾煌电气有限公司 | A kind of multifrequency buzzer |
| CN207352956U (en) * | 2017-10-31 | 2018-05-11 | 恒安科技（中山）有限公司 | A kind of anti-explosion loudspeaker |
-
2019
- 2019-06-14 CN CN201910518155.7A patent/CN110415671A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001092465A (en) * | 1999-09-24 | 2001-04-06 | Yazaki Corp | Buzzer ringing device |
| DE102008041505A1 (en) * | 2008-08-25 | 2010-03-04 | Clarton Horn S.A. | sound generator |
| CN101751917A (en) * | 2008-12-11 | 2010-06-23 | 沃洛汽车配件公司 | Electropneumatic horn with air venting channels |
| JP2014006396A (en) * | 2012-06-25 | 2014-01-16 | Panasonic Corp | Alarm sound drive circuit |
| CN104916277A (en) * | 2015-06-11 | 2015-09-16 | 福建新大陆支付技术有限公司 | Volume-adjustable passive magnetoelectric buzzer drive circuit and method |
| CN107680575A (en) * | 2016-08-02 | 2018-02-09 | 重庆达标电子科技有限公司 | A kind of buzzer with store-memory function |
| CN207268933U (en) * | 2017-08-30 | 2018-04-24 | 温州腾煌电气有限公司 | A kind of multifrequency buzzer |
| CN207352956U (en) * | 2017-10-31 | 2018-05-11 | 恒安科技（中山）有限公司 | A kind of anti-explosion loudspeaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113744710A (en) * | 2021-08-16 | 2021-12-03 | 江苏鑫长隆机电有限公司 | Sound production adjusting device and sound production adjusting method of magnetic type buzzer for instrument equipment |
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Application publication date: 20191105 |