CN212675902U - Buzzer structure - Google Patents

Abstract

The utility model provides a buzzer structure, have the storage tank and go out the sound hole including the casing, the storage tank bottom extends in a sound hole side and has the support bulge loop, forms the cavity in it. The circuit board is provided with a positioning guide groove at the side, the circuit board is arranged in the containing groove of the shell, and the positioning guide groove is embedded and positioned corresponding to the positioning slide block at the inner side of the containing groove, so that the vibration buzzer is fixed between the circuit board and the supporting convex ring. The periphery of the shell cover is provided with a plurality of convex parts at intervals and fixing pieces are arranged between the adjacent convex parts in a staggered mode, convex ribs are arranged on the outer sides of the fixing pieces, the convex parts correspond to the concave parts of the tight fit accommodating groove, the convex ribs are correspondingly clamped and fixed in the groove of the accommodating groove, the shell cover is fixedly covered on the shell, and when the driving circuit board drives the vibration buzzer to vibrate in the cavity, the buzzer is generated and is transmitted out from the sound outlet.

Description

Buzzer structure

Technical Field

The utility model relates to a buzzer structure especially indicates can fast assembly fix a position fixed and have good buzzer effect's buzzer structure.

Background

The buzzer is an electronic buzzer, adopts voltage to supply power, and is widely applied to electronic products such as computers, printers, copiers, alarms, electronic toys, automobile electronic equipment, telephones, timers, medical equipment, instruments and the like as a sounding device. The buzzer and the loudspeaker are different products, and the buzzer can emit vibration warning sound after being electrified for anti-theft or other warning purposes.

The circuit board and the buzzer of the buzzer are electrically connected by welding with the lead, however, in the welding process, the welding quality is bad due to manual carelessness, the production yield of the buzzer is affected, and in addition, the buzzer is easily touched due to improper bending and configuration of the lead in the assembling process, so that the problem of poor vibration effect of the buzzer is caused. Therefore, how to solve the above problems and deficiencies of the prior art is the subject of the urgent research and development of the related art.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to effectively fix the configuration position between the components by means of the snap-fit positioning, and to avoid the case and the case cover from falling off and separating.

The utility model discloses a secondary objective lies in, utilizes the electrically conductive piece of elasticity of circuit board and vibration buzzer patch to form electric connection to solve prior art and cause the poor problem of buzzer's buzzing effect because of wire welding and configuration.

In order to achieve the above object, the buzzer structure of the present invention comprises a housing, a circuit board and a housing cover. The casing has the storage tank and is located the play sound hole at the bottom center of storage tank, and the bottom extends in a sound hole side direction and has the support bulge loop, forms the cavity in the support bulge loop, and the outer fringe interval of the storage tank of keeping away from the bottom is provided with a plurality of recesses and encircles the slot in a plurality of recesses towards the storage tank inboard. The circuit board is provided with a positioning guide groove at the side, the circuit board is arranged in the containing groove of the shell, and the positioning guide groove is embedded and positioned corresponding to the positioning slide block at the inner side of the containing groove, so that the vibration buzzer is fixed between the circuit board and the supporting convex ring, and the driving circuit board is electrically connected with the vibration buzzer. The shell cover is provided with a cover body, a plurality of convex parts arranged on the periphery of the cover body at intervals, fixing pieces are arranged between the adjacent convex parts in a staggered mode, convex ribs are arranged on the outer sides of the fixing pieces, the convex parts correspond to the concave parts of the tight fit containing grooves, and the convex ribs are correspondingly clamped and fixed in the grooves of the containing grooves, so that the shell cover is fixedly covered on the shell body, and when the driving circuit board drives the vibration buzzer to vibrate in the cavity, the buzzer is generated and is transmitted out from the sound emitting holes.

The purpose, technical content, and features of the present invention and the effects achieved thereby will be better understood through the detailed description of the embodiments.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a structural sectional view of the present invention.

Fig. 4 is a sectional view of another structure of the present invention.

Description of reference numerals: 100 a buzzer structure; 1, a shell; 11 a containing groove; 111, a bottom part; 112 outer edge; 12 sound outlet holes; 13 supporting the convex ring; 131 chamber; 14 a recess; 15, a groove; 16 positioning a sliding block; 17, a notch; 2 driving the circuit board; 21, positioning a guide groove; 22a, 22b, 22c elastic conductive elements; 3, a shell cover; 31 a cover body; 32 convex parts; 33 a fixing sheet; 331 ribs; 34 a pressing member; 4, vibrating the buzzer; 41 a metal sheet; 42 ceramic plates; 422a, 422b, 422 conductive regions.

Detailed Description

For solving the qualification rate decline problem that current bee calling organ equipment is difficult to cause with the manufacture process, the utility model discloses the designer is through many years's research and development to according to the table disease of improving current product, follow-up will introduce in detail the utility model discloses how reach the most efficient function appeal with a bee calling organ structure.

Referring to fig. 1 to 4, the buzzer structure 100 includes a housing 1, a vibrating buzzer 4, a driving circuit board 2 and a housing cover 3. Wherein, the vibration buzzing piece 4 forms electric connection with the driving circuit board 2, the vibration buzzing piece 4 and the driving circuit board 2 are sequentially arranged in the shell 1, and then the shell cover 3 and the shell 1 are positioned, assembled and fixed.

The detailed structure and assembly of each component will be described in detail. The housing 1 has a receiving groove 11 and a sound outlet hole 12 located at the center of the bottom 111 of the receiving groove 11. A supporting protrusion ring 13 extends from the bottom 111 of the accommodating groove 11 in the side of the sound outlet 12, a cavity 131 is formed in the supporting protrusion ring 13, a plurality of recesses 14 are spaced apart from the outer edge 112 of the accommodating groove 11 of the bottom 111 of the accommodating groove 11, a groove 15 is annularly formed in the adjacent recess 14 toward the inner side of the accommodating groove 11, and a positioning slider 16 is disposed inside the accommodating groove 11, the number of the positioning sliders 16 is not limited, and the purpose of the positioning slider is to match with the structural design of the driving circuit board 2, which will be described later. The housing 1 further has a notch 17 at an outer edge 112 of the receiving groove 11 for receiving a power line or other functional lines.

The vibration buzzer 4 is disposed in the receiving slot 11, the vibration buzzer 4 is composed of a metal sheet 41 and a ceramic sheet 42 electrically connected to the metal sheet 41, and three conductive areas 422a, 422b, 422c separated from each other are separated from the top surface of the vibration buzzer 4 by the ceramic sheet 42. It should be noted that the diameter of the ceramic plate 42 is the same as that of the supporting convex ring 13, and the sound emitting direction of the sound emitting hole 12 is the same as the vibration direction of the ceramic plate 42, so that a sufficient space of the chamber 131 is formed to achieve a proper sound pressure.

Next, the side of the driving circuit board 2 has a positioning guide slot 21, three elastic conductive members 22a, 22b, 22c disposed at one side of the driving circuit board 2 and spaced apart from each other, and a driver 23 disposed at the other side of the driving circuit board 2, wherein the driver 23 is electrically connected to the three elastic conductive members 22a, 22b, 22 c. The structure shape of the positioning guiding groove 21 is matched with the positioning slider 16 in the accommodating groove 11 of the housing 1, and the positions of the three spaced elastic conductive members 22a, 22b, 22c respectively correspond to the three spaced conductive regions 422a, 422b, 422c of the vibration buzzer 4. When the driving circuit board 2 is disposed in the receiving cavity 11 of the housing 1, the positioning guide slot 21 is embedded and positioned corresponding to the positioning slider 16, and at this time, the bottom ends of the three spaced elastic conductive members 22a, 22b, and 22c respectively abut against the three spaced conductive regions 422a, 422b, and 422c of the vibration buzzer 4 to form a conductive structure. In this way, the vibration buzzer 4 can be fixed between the driving circuit board 2 and the supporting convex ring 13, and the driving circuit board 2 and the vibration buzzer 4 are electrically connected.

Finally, the cover 3 has a cover 31, a plurality of protrusions 32 spaced around the periphery of the cover 31, and a fixing piece 33 is disposed between adjacent protrusions 32 in a staggered manner, i.e. the fixing piece 33 is close to the periphery of the cover 31, and the plurality of protrusions 32 are disposed around the periphery of the cover 31, so that a staggered arrangement is formed between the two. The shape structure of the convex portion 32 of the cover 31 is matched with the shape structure of the concave portion 14 of the receiving groove 11, the outer side of the fixing piece 33 is provided with a convex rib 331, and the groove 15 is annularly arranged on the inner side of the receiving groove 11, so that the shape structure of the convex rib 331 is matched with the shape structure of the groove 15. When the housing cover 3 covers the housing 1, the plurality of protrusions 32 correspond to the plurality of recesses 14 of the close-fit receiving slot 11, and the protruding ribs 331 are correspondingly fixed in the grooves 15 of the receiving slot 11, so that the housing cover 3 is fixed on the housing 1.

The plurality of convex portions 32 are used as a positioning function corresponding to the plurality of concave portions 14 of the tight fit receiving groove 11, so that the assembling process can be more accurate and faster. It should be noted that the cover 3 further has a pressing member 34 connected to the bottom of the cover 31 and corresponding to the position of the driving circuit board 2, and the pressing member 34 is used for fixing the driving circuit board 2. When the driver 23 of the driving circuit board 2 drives the vibration buzzer 4, the bottom ends of the three elastic conductive members 22a, 22b, 22c of the driving circuit board 2 respectively abut against the three conductive regions 422a, 422b, 422c of the vibration buzzer 4 to form electric conduction, and when the vibration buzzer 4 vibrates in the cavity 131, the sound emitting direction of the vibration buzzer 4 is consistent with the vibration direction of the ceramic sheet 42 of the vibration buzzer 4, so that the proper sound pressure is achieved in the cavity 131, and accordingly, the buzzer sound is generated and emitted from the sound emitting hole 12. Since the pressing member 34 can be used to firmly press the driving circuit board 2 during vibration, the vibration of the driving circuit board 2 can be reduced to prolong the service life or reduce the damage of the components on the driving circuit board 2.

To sum up, the utility model discloses a buzzer structure utilizes simple and quick location equipment mode, can promote the efficiency of preparation efficiency and increase productivity. Further the utility model discloses utilize the elasticity of circuit board electrically conductive piece and vibration buzzing piece to form electric connection, need not use wire welding and configuration, can solve prior art because of the welding that manual operation caused is bad or the equipment does not touch vibration buzzing piece and leads to the problem that the preparation qualification rate descends.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

1. A buzzer structure, comprising:

the shell is provided with a containing groove and a sound outlet hole positioned in the center of the bottom of the containing groove, a supporting convex ring extends from the bottom in the direction of the sound outlet hole, a cavity is formed in the supporting convex ring, a plurality of concave parts are arranged at intervals on the outer edge of the containing groove far away from the bottom, grooves are annularly arranged on the adjacent concave parts towards the inner side of the containing groove, and a positioning slide block is arranged on the inner side of the containing groove;

the side edge of the driving circuit board is provided with a positioning guide groove, the driving circuit board is arranged in the accommodating groove of the shell, the positioning guide groove is embedded and positioned corresponding to the positioning slide block, the vibration buzzer is fixed between the driving circuit board and the supporting convex ring, and the driving circuit board is electrically connected with the vibration buzzer; and

the shell cover is provided with a cover body, a plurality of convex parts arranged on the periphery of the cover body at intervals, fixing pieces are arranged between the adjacent convex parts in a staggered mode, convex ribs are arranged on the outer sides of the fixing pieces, the convex parts are correspondingly and tightly matched with the concave parts of the accommodating groove, the convex ribs are correspondingly clamped and fixed in the grooves of the accommodating groove in a clamping mode, the shell cover is fixedly covered on the shell body, and when the driving circuit board drives the vibration buzzer to vibrate in the cavity, the buzzer is generated and is transmitted out from the sound outlet hole.

2. A buzzer structure as claimed in claim 1, characterised in that: the cover body is provided with a pressing piece, the pressing piece is connected to the bottom of the cover body and corresponds to the position of the driving circuit board, and the pressing piece is used for pressing and fixing the driving circuit board.

3. A buzzer structure as claimed in claim 1, characterised in that: the vibrating buzzer is composed of a metal sheet and a ceramic sheet electrically connected with the metal sheet, and the top surface of the vibrating buzzer is divided into three mutually separated conductive areas by virtue of the ceramic sheet.

4. A buzzer structure as claimed in claim 3, characterised in that: the diameter of the ceramic plate is the same as that of the supporting convex ring.

5. A buzzer structure as claimed in claim 3, characterised in that: the driving circuit board comprises three elastic conductive pieces which are mutually separated, and when the positioning guide groove of the driving circuit board is embedded and positioned corresponding to the positioning slide block of the accommodating groove, the bottom ends of the three elastic conductive pieces are respectively abutted against the three conductive areas of the vibration buzzer.

6. A buzzer structure as claimed in claim 5, characterised in that: the driving circuit board comprises a driver, and the driver is used for starting the bottom ends of the three elastic conductive pieces to respectively abut against the three conductive areas of the vibration buzzer sheet and then conducts conductive vibration to generate buzzing sound.

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