CN203503293U - Piezoelectric type buzzer - Google Patents

Piezoelectric type buzzer Download PDF

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Publication number
CN203503293U
CN203503293U CN201320681602.9U CN201320681602U CN203503293U CN 203503293 U CN203503293 U CN 203503293U CN 201320681602 U CN201320681602 U CN 201320681602U CN 203503293 U CN203503293 U CN 203503293U
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China
Prior art keywords
shell fragment
contact pin
hole
printed board
bonnet
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.)
Active
Application number
CN201320681602.9U
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Chinese (zh)
Inventor
彭清风
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO KEPO ELECTRONICS Ltd
Original Assignee
NINGBO KEPO ELECTRONICS Ltd
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Priority to CN201320681602.9U priority Critical patent/CN203503293U/en
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Publication of CN203503293U publication Critical patent/CN203503293U/en
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Abstract

The utility model discloses a piezoelectric type buzzer, which comprises a case and a rear cover mutually cooperated, a circle through hole is provided at the end portion of the case, a buzzing sheet and a printed board are provided in a cavity formed by the case and the rear cover through cooperation, three electrodes of the buzzing sheet is introduced through a lead, three pin spring sheets are welded on the printed board, each pin spring sheet and the end welded by the printed board are respectively connected to a corresponding phase of the lead introduced by the buzzing sheet, the other end of the pin spring stretches out of the rear cover and presses against a PCB in a direct mode, and an inverted button fixed with a first through hole of the PCB plate in the cooperation mode is provided on the case. The piezoelectric type buzzer reduces the material cost of the buzzer and the damage due to welding on the buzzer during a usage process, so that the production efficiency and the usage life of the product can be increased.

Description

Piezo buzzer
Technical field
The utility model relates to a kind of hummer, particularly piezo buzzer.
Background technology
The hummer that we are current, has contact pin extraction and the hummer of the extraction that goes between.Lead-in wire extraction hummer can only carry out manual welding, and its efficiency is very low.In order to enhance productivity, client substantially can select contact pin extraction hummer, hummer is crossed to wave-soldering together with other electronic devices and components to be welded, but this production technology requires very high to the heatproof of the microphone device buzzing sheet of the case material of hummer and hummer, and in production welding process, easily cause the damage of hummer, can meet the material of this manufacturing technique requirent, price is often all higher, and stability of material is poor, the cost of hummer and the quality risk of product have so just greatly been increased.
Utility model content
The purpose of this utility model be in order to solve above-mentioned the deficiencies in the prior art, provide that a kind of production efficiency is high, long service life, production cost be low, the impact of in use not welded, has improved the piezo buzzer of work efficiency.
To achieve these goals, the piezo buzzer that the utility model is designed, comprise the housing and the bonnet that cooperatively interact, end at housing is provided with manhole, at housing, coordinate with bonnet in the cavity forming and be provided with buzzing sheet and printed board, and three electrodes of described buzzing sheet are drawn by wire, in printed board, be welded with three contact pin shell fragments, and corresponding being connected of wire that each root contact pin shell fragment is also drawn with buzzing sheet respectively with this end of soldering of printed boards, other one end of described contact pin shell fragment stretch out bonnet and directly and pcb board contact, on housing, be provided with the back-off that the first through hole with pcb board is fixed.
In order to play effective fixation, prevent that shell fragment from moving, impact contact effect, on bonnet, be provided with the second through hole for the contact pin shell fragment of pegging graft, described contact pin shell fragment is divided into upper and lower by bending structure by shell fragment, and the upper end on top and soldering of printed boards, and the second through hole is stretched in lower end, and the outside that the both sides of lower end, top are provided with bending and lower end, top is provided with projection, and the angle of bending is 90 °.
When using hummer, after pcb board is got well other electronic devices and components by Wave crest Welding, the back-off of hummer housing is inserted in the first through hole corresponding on pcb board, make it to buckle with pcb board, make contact pin shell fragment contact the pad on pcb board, the signal of accepting to transmit from pcb board, thereby the damage that makes hummer avoid welding and avoid welding to cause hummer in installing and using process, the damage that this design has reduced the material cost of hummer and in use due to welding, hummer caused, thereby improved production efficiency, the serviceable life of product.
The piezo buzzer that the utility model obtains, reduced the material cost of hummer and in use due to welding damage that hummer is caused, thereby improved serviceable life and the work efficiency of production efficiency, product.
Accompanying drawing explanation
Fig. 1 is the one-piece construction exploded perspective view of embodiment 1;
Fig. 2 is the scheme of installation of piezo buzzer when work in embodiment 1;
Fig. 3 is the cut-open view of Fig. 2;
Fig. 4 is the structural representation of pcb board in embodiment 1;
Fig. 5 is the one-piece construction exploded perspective view of embodiment 2;
Fig. 6 is the structural representation of bonnet in embodiment 2;
Fig. 7 is the structural representation of contact pin shell fragment in embodiment 2.
In figure: housing 1, bonnet 2, the second through hole 2-1, buzzing sheet 3, printed board 4, contact pin shell fragment 5, top 5-1, bottom 5-2, bending 5-3, projection 5-4, the first through hole 6, back-off 7, manhole 8, wire 9, pcb board 10, mounting groove 11.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the piezo buzzer that the present embodiment provides, comprise the housing 1 and the bonnet 2 that cooperatively interact, in the end of housing, be provided with manhole 8, at housing 1, coordinate with bonnet 2 in the cavity forming and be provided with buzzing sheet 3 and printed board 4, and three electrodes of described buzzing sheet 3 are drawn by wire 9, in printed board 4, be welded with three contact pin shell fragments 5, and corresponding being connected of wire 9 that each root contact pin shell fragment 5 is also drawn with buzzing sheet 3 respectively with this end of printed board 4 welding, other one end of described contact pin shell fragment 5 stretch out bonnet 2 and directly and pcb board 10 contact, on housing 1, be provided with the back-off 7 that the first through hole 6 with pcb board 10 is fixed.As shown in Figure 4, the pcb board in the present embodiment 10 is provided with first through hole 6 corresponding with back-off 7.
Installation process, draws with wire 9 electrode of buzzing sheet 3 respectively by welding manner, and with silica gel, is bonded in the composition pronunciation chamber, top position of housing 1; Contact pin shell fragment 5 is welded in printed board 4, and printed board 4 is fixed in the mounting groove 11 of bonnet 2; The other end of contact pin shell fragment 5 stretches out bonnet 2, and 9 other ends of the wire on buzzing sheet 3 are connected with corresponding contact pin shell fragment 5 respectively; Pack bonnet 2 into housing 1, form a complete hummer product.
As shown in Figure 2, during work, when using hummer, after pcb board 10 is got well other electronic devices and components by Wave crest Welding, the back-off of hummer housing 17 is inserted in the first through hole 6 corresponding on pcb board 10, make it to buckle with pcb board 10, make contact pin shell fragment 5 contact the pad on pcb board 10, accept the signal transmitting from pcb board 10.
Embodiment 2:
The general configuration of the piezo buzzer that the present embodiment provides is identical with embodiment 1, simultaneously in order to prevent that shell fragment from moving, impact contact effect, as shown in Figure 6, on bonnet 2, be provided with the second through hole 2-1 for the contact pin shell fragment 5 of pegging graft, as shown in Figure 7, described contact pin shell fragment 5 is divided into 5-1He bottom, top 5-2 by bending structure by shell fragment, and the upper end of top 5-1 and printed board 4 welding, the second through hole 2-1 is stretched in lower end, and the outside that the both sides of 5-1 lower end, top are provided with bending 5-3 and 5-1 lower end, top is provided with projection 5-4, and the angle of described bending 5-3 is 90 °, when mounted, the bottom 5-2 of contact pin shell fragment 5 is passed to the second through hole 2-1, the lower end of top 5-1 is just stretched in the second through hole 2-1 simultaneously, in order to play effective fixation, when mounted due to the acting in conjunction of the projection 5-4 in the present embodiment and bending 5-3, making contact pin shell fragment 5 withstand the second through hole 2-1 is difficult to drop or move left and right, thereby guarantee the contact performance of bottom 5-2 and the pcb board 10 of contact pin shell fragment 5.And about the size of the bending structure of contact pin shell fragment 5 own, can determine according to the requirement of specific embodiment in the present embodiment, not specific restriction, in the present embodiment, the both sides bending 5-3 part of lower end and the length of projection 5-4 are all just can withstand the inwall of the second through hole 2-1 simultaneously.

Claims (2)

1. a piezo buzzer, comprise the housing (1) and the bonnet (2) that cooperatively interact, in the end of housing (1), be provided with manhole (8), at housing (1), coordinate with bonnet (2) in the cavity forming and be provided with buzzing sheet (3) and printed board (4), and three electrodes of described buzzing sheet (3) are drawn by wire (9), it is characterized in that: in printed board (4), be welded with three contact pin shell fragments (5), and corresponding being connected of wire (9) that each root contact pin shell fragment (5) is also drawn with buzzing sheet (3) respectively with this end of printed board (4) welding, other one end of described contact pin shell fragment (5) stretch out bonnet (2) and directly and pcb board (10) contact, on housing (1), be provided with the back-off (7) that the first through hole (6) with pcb board (10) is fixed.
2. piezo buzzer according to claim 1, it is characterized in that: on bonnet (2), be provided with the second through hole (2-1) for the contact pin shell fragment (5) of pegging graft, described contact pin shell fragment (5) is divided into top (5-1) and bottom (5-2) by bending structure by shell fragment, and the upper end of top (5-1) and printed board (4) welding, the second through hole (2-1) is stretched in lower end, and the outside that the both sides of lower end, top (5-1) are provided with bending (5-3) and lower end, top (5-1) is provided with projection (5-4), the angle of bending simultaneously (5-3) is 90 °.
CN201320681602.9U 2013-11-01 2013-11-01 Piezoelectric type buzzer Active CN203503293U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320681602.9U CN203503293U (en) 2013-11-01 2013-11-01 Piezoelectric type buzzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320681602.9U CN203503293U (en) 2013-11-01 2013-11-01 Piezoelectric type buzzer

Publications (1)

Publication Number Publication Date
CN203503293U true CN203503293U (en) 2014-03-26

Family

ID=50334253

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320681602.9U Active CN203503293U (en) 2013-11-01 2013-11-01 Piezoelectric type buzzer

Country Status (1)

Country Link
CN (1) CN203503293U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332157A (en) * 2014-11-17 2015-02-04 深圳市声辉电子有限公司 Piezoelectric type active buzzer and assembly technology thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104332157A (en) * 2014-11-17 2015-02-04 深圳市声辉电子有限公司 Piezoelectric type active buzzer and assembly technology thereof
CN104332157B (en) * 2014-11-17 2018-10-12 深圳市声辉电子有限公司 Piezoelectric type active buzzer and its assembly technology

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