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Bottom cap-free piezoelectric buzzer and assembling method thereof

A piezoelectric buzzer without a bottom cover technology, which is applied to instruments, sound-generating devices, etc., can solve problems such as increased costs, and achieve the effects of increased production costs, increased assembly difficulty, and simplified components

Inactive Publication Date: 2020-01-10
广州市番禺区大通电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of the prior art is that the bottom cover is required for fixing, which increases the cost

Method used

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  • Bottom cap-free piezoelectric buzzer and assembling method thereof
  • Bottom cap-free piezoelectric buzzer and assembling method thereof
  • Bottom cap-free piezoelectric buzzer and assembling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A method for assembling a piezoelectric buzzer without a bottom cover is characterized in that it comprises the following steps:

[0035] Step 1, turn the bottom of the case upwards;

[0036] Step 2, place the buzzer in the circular groove of the casing, with the piezoelectric ceramic piece of the buzzer facing up;

[0037] Step 3, insert the inserts of the two pins into the slots on the two lugs respectively, and snap the card head into the buckle;

[0038] Step 4, place the shrapnel of one of the inserts against the piezoelectric ceramic sheet of the buzzer, and bend and fold the shrapnel of the other insert so that it touches the copper sheet on the outer periphery of the buzzer;

[0039] Step 5, use solder to weld the connection between the shrapnel and the buzzer firmly;

[0040] Step 6, power-on test, qualified shipment, unqualified rework.

Embodiment 2

[0042] A method for assembling a piezoelectric buzzer without a bottom cover is characterized in that it comprises the following steps:

[0043] Step 1, turn the bottom of the case upwards;

[0044] Step 2, place the buzzer in the circular groove of the casing, with the piezoelectric ceramic piece of the buzzer facing up;

[0045] Step 3, insert the inserts of the two pins into the slots on the two lugs respectively, and snap the card head into the buckle;

[0046] Step 4, place the shrapnel of one of the inserts against the piezoelectric ceramic sheet of the buzzer, and bend and fold the shrapnel of the other insert so that it touches the copper sheet on the outer periphery of the buzzer;

[0047] Step 5, use solder to weld the connection between the shrapnel and the buzzer firmly;

[0048] Step 6, power-on test, qualified shipment, unqualified rework; after passing the test, the casing is coated with protective paint. Improves wear resistance and improves the appearance o...

Embodiment 3

[0050] Such as Figure 5 Shown, a kind of assembling method of bottomless piezoelectric buzzer is characterized in that: it comprises the following steps:

[0051] Step 1, turn the bottom of the case upwards;

[0052] Step 2, place the buzzer piece in the circular groove of the shell, and the circular groove of the shell is coated with glue before placing the buzzer piece, so as to further improve the fixing of the buzzer piece. At this time, the piezoelectricity of the buzzer piece The ceramic piece faces up;

[0053] Step 3, insert the inserts of the two pins into the slots on the two lugs respectively, and snap the card head into the buckle;

[0054] Step 4, place the shrapnel of one of the inserts against the piezoelectric ceramic sheet of the buzzer, and bend and fold the shrapnel of the other insert so that it touches the copper sheet on the outer periphery of the buzzer;

[0055] Step 5, use solder to weld the connection between the shrapnel and the buzzer firmly;

...

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PUM

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Abstract

The invention relates to a buzzer, in particular to a bottom cap-free piezoelectric buzzer and an assembling method thereof. The buzzer comprises a shell, a buzzing piece and contact pins, the shell is provided with three lugs, the three lugs are arranged at equal intervals, slots are formed in the bottom surfaces of all the lugs, buckles are arranged in the slots, the middle part of the shell issunken to form a circular groove, the circular groove is used for containing the buzzing piece, the contact pins comprise insertion pieces, chucks, pin feet and elastic pieces, the chucks are arrangedon the side faces of the insertion pieces and opposite to the buckles, the pin feet are fixed at the tops of the insertion pieces, the elastic pieces are fixed at the tops of the side edges of the insertion pieces, the pin feet are electrically connected with the elastic pieces, the insertion pieces are inserted into the slots in the lugs, the chucks are buckled in the buckles, and the tail endsof the elastic pieces abut against the buzzing piece in the circular groove; and the product in the invention is very simple in structure and is only composed of the shell, the buzzing piece and the contact pins, and the cost of raw materials is further reduced.

Description

technical field [0001] The invention relates to a buzzer, in particular to a piezoelectric buzzer without a bottom cover and an assembly method thereof. Background technique [0002] With the advancement of technology, the structure of the buzzer is becoming more and more concise, and it is more and more suitable for quick assembly. For example, a Chinese patent discloses a buzzer structure, patent No. 201820872590.0, which records: including a plastic shell, a buzzer piece, a wire, a pcb board, pins, snap grooves, shell gaps, bumps, and plastic undercuts. The plastic shell has three shell gaps distributed equidistantly; the plastic shell gap has plastic undercuts; the pcb board has two pins on one side and two wires on the other side to connect with the buzzer piece; the pcb board on the outside There are three bumps equally spaced. The new buzzer pins are designed and produced through a new buckle structure, which greatly reduces production man-hours, improves production...

Claims

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Application Information

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IPC IPC(8): G10K9/122
CPCG10K9/122
Inventor 严中田廖伟南
Owner 广州市番禺区大通电子有限公司