CN104332157A - Piezoelectric type active buzzer and assembly technology thereof - Google Patents
Piezoelectric type active buzzer and assembly technology thereof Download PDFInfo
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- CN104332157A CN104332157A CN201410648429.1A CN201410648429A CN104332157A CN 104332157 A CN104332157 A CN 104332157A CN 201410648429 A CN201410648429 A CN 201410648429A CN 104332157 A CN104332157 A CN 104332157A
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Abstract
The invention discloses a piezoelectric type active buzzer and assembly technology thereof, the buzzer comprises a face shell and a circuit board main body, a buzzing piece is formed in the face shell and connected to the bottom shell, a guide needle is formed on the bottom shell, the guide needle pin on the guide needle passes through the bottom shell, the guide needle spring sheet on the guide needle presses the contact of the guide needle on the buzzing piece, the clamping position of the bottom shell is locked with the back locking structure of the face shell, the guide needle is fixed on the circuit board main body, the circuit board main body is connected to a rubber shell or encapsulation glue; the production technology comprises the steps as follows: assembling the buzzer sound device, assembling the circuit board main body, assembling the circuit board main body on the buzzer sound device, fixing the guide needle on the circuit board main body, covering the circuit board with the rubber shell or encapsulation glue. The production technology of the piezoelectric type active buzzer is simple, the production period is short, and the quality consistency and controllability are good.
Description
[technical field]
The present invention relates to piezoelectric type active buzzer and assembly technology thereof.
[background technology]
Piezoelectric type active buzzer is the piezoelectric effect with piezoelectric ceramics, drive the vibration of sheet metal and sounding, be widely used in making microphone device in the electronic products such as computing machine, printer, duplicating machine, alarm, electronic toy, vehicle electronics, telephone set, timer.Glue fixed form is mostly adopted at present in world wide piezoelectric type active buzzer piezo fixed form, piezo and circuit board connected mode adopt the welded connection technology modes such as enameled wire, silk yarn covered wire or wire, there is technique very complicated, quality controllable degree is low, production efficiency is low, the production cycle is long and cannot realize the defects such as equipment production, and existing hummer production crash rate is higher, can not meet the demand of user.
In addition, existing piezoelectric type active buzzer circuit board is the output wave sound signal that can not work alone, and form vibration sender filtered audio signal by extracting feedback signal from piezo, its signal frequency is by piezo frequency influence, and frequency invariance is poor.
Above problem, is worth improving.
[summary of the invention]
The object of the invention is the deficiency existed to improve said method, a kind of piezoelectric type active buzzer and assembly technology thereof are provided.
Piezoelectric type active buzzer assembly technology, is characterized in that, comprise the following steps,
S1: use piezo buzzer automatic assembly equipment assembling piezoelectric type active buzzer sounding body;
S2: use SMT equipment wiring harness plate main body, pcb board is stamped tin cream, is put into corresponding SMT equipment and sticks field of electronic components, re-use the component on solder reflow device welding PCB;
S3: the circuit board main body completed is assembled to step S1 and completes on hummer sounding body;
S4: the guide pin solder of piezoelectric type active buzzer sounding body is weldingly fixed in circuit board main body;
S5: glue shell or embedding glue are covered on the circuit board in piezoelectric type active buzzer sounding body, completes assembling.
Further, described step S1 specifically comprises,
S11: drain pan, guide pin, face-piece and piezo are put into respective feed vibrating disk respectively, utilizes independently feeding vibration disk drain pan, guide pin, face-piece to be sent into by unified orientation and establishes ready for use;
S12: drain pan is sent in equipment turntable drain pan positioning tool, become base after completing contact pin, pressing, looper in order stand-by;
S13: face-piece is admitted in equipment delivery chute, puts into piezo;
S13: be pressed in face-piece by base, until drain pan screens is fastened by face-piece left-hand thread structure completely, completes the assembling of piezoelectric type active buzzer sounding body.
Further, what described step S3 was concrete is: circuit board main body signal delivery outlet is just entered, until circuit board tightly touch drain pan to two guide pin covers of piezoelectric type active buzzer sounding body.
Piezoelectric type active buzzer, comprise face-piece, circuit board main body, it is characterized in that, described face-piece inside is provided with piezo, and piezo is connected with drain pan, drain pan is provided with guide pin, guide pin pin on guide pin is through drain pan, and the guide pin shell fragment on guide pin makes the contact of guide pin be crimped in piezo, and the screens of drain pan is fastened by the left-hand thread structure of described face-piece, guide pin is fixed in described circuit board main body, and described circuit board main body is covered by glue shell or embedding glue.
Further, described guide pin is enclosed within the signal delivery outlet of described circuit board main body.
Further, described guide pin is fixedly welded by solder with circuit board main body.
The present invention compared with prior art, its beneficial effect is: the present invention is not affecting under piezoelectric type active buzzer electrical property prerequisite, piezoelectric type active buzzer will be had to resolve into two parts modularized production, realize Automated assembly production and become feasible, thus thoroughly solve current piezoelectric type active buzzer production efficiency low, the defects such as Automated assembly production cannot be realized, production technology is simple, with short production cycle, quality conformance and controllability good.
Piezoelectric type active buzzer of the present invention adopts without lead-in wire Joining Technology, and independently piezoelectric type active buzzer sounding body adopts welding, without glue assembly technology, overall construction design is brief, compact, and assembling is simple, and product failure rate is low.
The present invention makes circuit board main body not rely on piezo, can work alone and export square wave sound signal after connecing electricity, and obtained the square wave sound signal of different frequency by the size of regulating resistance and electric capacity, frequency departure is little.
[accompanying drawing explanation]
Fig. 1 is product module structural representation of the present invention;
Fig. 2 is structural blast figure of the present invention;
Fig. 3 is hummer sounding body structural blast figure;
Fig. 4 is another angled arrangement explosive view of hummer sounding body;
Fig. 5 is base assembling schematic diagram;
Fig. 6 is understructure schematic diagram;
Fig. 7 is face-piece assembled schematic diagram;
Fig. 8 is face-piece modular construction schematic diagram;
Fig. 9 is piezoelectric type active buzzer sounding body assembling schematic diagram;
Figure 10 is piezoelectric type active buzzer sounding body structural representation;
Figure 11 is circuit board main body structural representation.
In the drawings, 1, piezoelectric type active buzzer sounding body; 2, circuit board main body; 3, glue shell or embedding glue; 4, face-piece; 5, piezo; 6, guide pin; 7, drain pan; 8, base; 9, face-piece assembly; 10, guide pin shell fragment; 11, guide pin pin; 12, wiring board; 13, IC is integrated; 14, resistance; 15, electric capacity.
[embodiment]
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of piezoelectric type active buzzer and assembly technology thereof.
As shown in Figure 1, piezoelectric type active buzzer is divided into piezoelectric type active buzzer sounding body 1, circuit board main body 2 and glue shell or glue sealing 3 three part, and the explosive view of various piece as in Figure 2-4.
As shown in Figure 5,6, drain pan 7 is provided with guide pin 6, and the guide pin pin 11 on guide pin 6 is through drain pan 7, and guide pin 6 and drain pan 7 form base 8.
As shown in Fig. 7,6, face-piece 4 inside is provided with piezo 5, and face-piece 4 and piezo 5 form face-piece assembly 9.
As shown in Fig. 9,10, piezo 5 is connected with drain pan 7, and the guide pin shell fragment 10 on guide pin 6 makes the contact of guide pin 6 be crimped in piezo 5, and the screens of drain pan 7 is fastened by the left-hand thread structure of face-piece 4, and assembling forms piezoelectric type active buzzer sounding body 1 like this.
As shown in figure 11, circuit board main body 2, resistance 14, electric capacity 15 integrated 13 by wiring board 12, IC forms.Pcb board is stamped tin cream, and be put into corresponding SMT equipment and stick that IC is integrated 13, resistance 14, electric capacity 15, re-use each component on solder reflow device welding PCB, assembling is formed, and can export the square-wave signal being not limited only to 4000Hz like this.
Existing piezoelectric type active buzzer circuit board is the output wave sound signal that can not work alone, vibration sender filtered audio signal is formed by extracting feedback signal from piezo, its signal frequency is by piezo frequency influence, frequency invariance is poor, and circuit board main body 2 works alone and exports square wave sound signal connecing electric energy in the present invention, obtained the square wave sound signal of different frequency by the size of regulating resistance 14 and electric capacity 15, frequency departure is less.
Guide pin 6 is enclosed within the signal delivery outlet of circuit board main body 2, and guide pin 6 is fixedly welded in circuit board main body 2 by solder, and circuit board main body 2 seals covering by glue shell or embedding glue 3.
The present invention also provides a kind of assembly technology for above-mentioned piezoelectric type active buzzer, mainly comprises the following steps:
Step one: use piezo buzzer automatic assembly equipment assembling piezoelectric type active buzzer sounding body 1.Specific practice is first by drain pan 7, guide pin 6, face-piece 4 and piezo 5 are put into respective feed respectively and to be shaken dish, utilize independently feeding vibration disk by drain pan 7, guide pin 6, face-piece 4 is sent into by unified orientation and is established ready for use, during operational outfit, first drain pan 7 is admitted in equipment turntable drain pan 7 positioning tool, complete contact pin in order, pressing, base 8 is become stand-by after looper, face-piece 4 is admitted in equipment delivery chute simultaneously, after putting into piezo 5 successively, base 8 is pressed in face-piece assembly 9, until drain pan 7 screens is fastened by face-piece 4 left-hand thread structure completely, complete piezoelectric type active buzzer sounding body 1 to assemble.Drain pan 7 screens forms fixed sturcture crimp force to piezo 5 after being fastened by face-piece 4 left-hand thread structure completely, substitutes original glue fixed sturcture.Simultaneously there is potential difference and produce pressure in guide pin shell fragment 10 and piezo 5, makes guide pin 6 contact tightly be crimped in piezo 5, form Signal transmissions effect, alternative original lead-in wire welding connecting mode.
Step 2: use SMT equipment wiring harness plate 2 main body: pcb board is stamped tin cream, is put into corresponding SMT equipment and sticks field of electronic components, re-use the component on solder reflow device welding PCB.
Step 3: the circuit board main body 2 step 2 completed is assembled to step one and completes on hummer sounding body 1; Concrete grammar is: circuit board main body 2 signal delivery outlet is just entered, until circuit board tightly touch drain pan to two guide pin covers of piezoelectric type active buzzer sounding body 1.
Step 4: after completing steps three, the guide pin 6 of piezoelectric type active buzzer sounding body 1 solder is weldingly fixed in circuit board 2 main body.
Step 5: cover the circuit board 2 in piezoelectric type active buzzer sounding body 1 with glue shell or glue sealing 3.
Drain pan 7 screens forms fixed sturcture crimp force to piezo 5 after being fastened by face-piece 4 left-hand thread structure completely, substitutes original glue fixed sturcture.Simultaneously there is potential difference and produce pressure in guide pin shell fragment 10 and piezo 5, makes guide pin 6 contact tightly be crimped in piezo 5, form Signal transmissions effect, alternative original lead-in wire welding connecting mode.
The present invention is equally applicable to electromagnetic active hummer modular assembly.
Said structure and assembly technology make piezoelectric type active buzzer have following architectural feature:
1, an independently piezoelectric type active buzzer sounding body 1, is made up of face-piece 4, piezo 5, guide pin 6 and drain pan 7, can makes a sweet sound during frequency input signal;
2, independently circuit board 2, resistance 14, electric capacity 15 integrated 13 by wiring board 12, IC forms, and can export the square-wave signal being not limited only to 4000Hz.
Its production technology is characterized as:
Independently piezoelectric type active buzzer sounding body 1 adopts welding, without glue assembly technology, easily can realize the automatic Assembling Production of equipment;
Piezoelectric type active buzzer sounding body 1 and circuit board main body 2 adopt without going between Joining Technology, and piezoelectric type active buzzer sounding body 1 guide pin pin 11 directly inserts circuit board main body 2, and make the technique more convenient and quicker that is linked and packed, quality is more reliable.
Finally should be noted that: above embodiment is only for above embodiment, only in order to technical scheme of the present invention to be described but not to be limited, although with reference to above-mentioned embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. piezoelectric type active buzzer assembly technology, is characterized in that, comprises the following steps,
S1: use piezo buzzer automatic assembly equipment assembling piezoelectric type active buzzer sounding body (1);
S2: use SMT equipment wiring harness plate main body (2), pcb board is stamped tin cream, is put into corresponding SMT equipment and sticks field of electronic components, re-uses the component on solder reflow device welding PCB;
S3: the circuit board main body completed (2) is assembled to step S1 and completes on hummer sounding body (1);
S4: the guide pin (6) of piezoelectric type active buzzer sounding body (1) solder is weldingly fixed in circuit board main body (2);
S5: glue shell or embedding glue (3) are covered on the circuit board (2) in piezoelectric type active buzzer sounding body (1), complete assembling.
2. piezoelectric type active buzzer assembly technology according to claim 1, it is characterized in that, described step S1 specifically comprises,
S11: drain pan (7), guide pin (6), face-piece (4) and piezo (5) are put into respective feed vibrating disk respectively, utilizes independently feeding vibration disk drain pan (7), guide pin (6), face-piece (4) to be sent into by unified orientation and establishes ready for use;
S12: drain pan (7) is sent in equipment turntable drain pan positioning tool, become base (8) after completing contact pin, pressing, looper in order stand-by;
S13: face-piece (4) is admitted in equipment delivery chute, puts into piezo (5);
S14: by base (8) press-in face-piece (4), until drain pan (7) screens is fastened by face-piece (4) left-hand thread structure completely, completes piezoelectric type active buzzer sounding body (1) assembling.
3. piezoelectric type active buzzer assembly technology according to claim 1, it is characterized in that, what described step S3 was concrete is: circuit board main body (2) signal delivery outlet is just entered, until circuit board tightly touch drain pan to two guide pin covers of piezoelectric type active buzzer sounding body (1).
4. piezoelectric type active buzzer, comprises face-piece (4), circuit board main body (2), it is characterized in that,
Described face-piece (4) inside is provided with piezo (5), piezo (5) is connected with drain pan (7), drain pan (7) is provided with guide pin (6), guide pin pin (11) on guide pin (6) is through drain pan (7), guide pin shell fragment (10) on guide pin (6) makes the contact of guide pin (6) be crimped in piezo (5), the screens of drain pan (7) is fastened by the left-hand thread structure of described face-piece (4), guide pin (6) is fixed in described circuit board main body (2), described circuit board main body (2) is sealed by glue shell or embedding glue (3) and covers.
5. piezoelectric type active buzzer according to claim 4, is characterized in that, described guide pin (6) is enclosed within the signal delivery outlet of described circuit board main body (2).
6. piezoelectric type active buzzer according to claim 5, is characterized in that, described guide pin (6) is fixedly welded by solder with circuit board main body (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410648429.1A CN104332157B (en) | 2014-11-17 | 2014-11-17 | Piezoelectric type active buzzer and its assembly technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410648429.1A CN104332157B (en) | 2014-11-17 | 2014-11-17 | Piezoelectric type active buzzer and its assembly technology |
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| CN104332157A true CN104332157A (en) | 2015-02-04 |
| CN104332157B CN104332157B (en) | 2018-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142075A (en) * | 2015-09-21 | 2015-12-09 | 广东奥迪威传感科技股份有限公司 | Active sounder |
| CN108597487A (en) * | 2018-07-04 | 2018-09-28 | 广州凯立达电子有限公司 | Shrapnel pin configuration, buzzer and buzzer production method |
| CN116638311A (en) * | 2023-05-08 | 2023-08-25 | 常州富鸿达电子有限公司 | Piezoelectric buzzer assembly machine with spring leg structure |
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| JP2001154676A (en) * | 1999-11-29 | 2001-06-08 | Arrow Denshi Kogyo Kk | Electronic sound alarm |
| CN202967521U (en) * | 2012-12-04 | 2013-06-05 | 兴化市华宇电子有限公司 | Material discharging mechanism of full-automatic needle inserting machine of buzzer PCB (printed circuit board) |
| CN203165449U (en) * | 2013-03-19 | 2013-08-28 | 深圳市声辉电子有限公司 | Artificial intelligence (AI) insertion-type buzzer |
| CN203503293U (en) * | 2013-11-01 | 2014-03-26 | 宁波凯普电子有限公司 | Piezoelectric type buzzer |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001154676A (en) * | 1999-11-29 | 2001-06-08 | Arrow Denshi Kogyo Kk | Electronic sound alarm |
| CN202967521U (en) * | 2012-12-04 | 2013-06-05 | 兴化市华宇电子有限公司 | Material discharging mechanism of full-automatic needle inserting machine of buzzer PCB (printed circuit board) |
| CN203165449U (en) * | 2013-03-19 | 2013-08-28 | 深圳市声辉电子有限公司 | Artificial intelligence (AI) insertion-type buzzer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142075A (en) * | 2015-09-21 | 2015-12-09 | 广东奥迪威传感科技股份有限公司 | Active sounder |
| CN108597487A (en) * | 2018-07-04 | 2018-09-28 | 广州凯立达电子有限公司 | Shrapnel pin configuration, buzzer and buzzer production method |
| CN108597487B (en) * | 2018-07-04 | 2023-07-07 | 广州凯立达电子股份有限公司 | Spring plate pin structure, buzzer and production method of buzzer |
| CN116638311A (en) * | 2023-05-08 | 2023-08-25 | 常州富鸿达电子有限公司 | Piezoelectric buzzer assembly machine with spring leg structure |
| CN116638311B (en) * | 2023-05-08 | 2024-04-19 | 常州富鸿达电子有限公司 | Piezoelectric buzzer assembly machine with spring leg structure |
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| CN104332157B (en) | 2018-10-12 |
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