CN212365485U

CN212365485U - Buzzer mechanism

Info

Publication number: CN212365485U
Application number: CN201922443423.1U
Authority: CN
Inventors: 周锦威
Original assignee: Audiowell Electronics Guangdong Co ltd
Current assignee: Audiowell Electronics Guangdong Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2021-01-15
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a buzzer mechanism, include: buzzing shell, piezoelectric component, contact pin, conductive piece and installation lid. When the buzzer mechanism is used, the welding part is additionally arranged on the installation cover body, on one hand, the electric conduction of the conductive piece and the contact pin is ensured, on the other hand, the one end of the conductive piece is fixed on the installation cover body, and the accidental disconnection of the conductive piece and the contact pin is avoided. In addition, when the welding part is additionally arranged, the welding part can be additionally arranged after the contact pin is arranged in the mounting cover body, or the welding part can be additionally arranged at the end part of the contact pin before the contact pin is inserted into the mounting cover body. Compared with the traditional buzzer, the buzzer assembly structure realizes the electrical connection between the conductive piece and the contact pin through the welding part, and the electrical conduction between the piezoelectric component and the contact pin. The mode that traditional bee calling organ need carry out electrical connection (or switch on) with the help of the PCB board has been replaced promptly for bee calling organ's installation is more simplified.

Description

Buzzer mechanism

Technical Field

The utility model relates to a piezoceramics's technical field especially relates to a buzzer mechanism.

Background

The traditional buzzer structure needs to be electrically connected with a plurality of contact pins through a PCB (printed circuit board), namely, one end of each lead (connecting wire) is electrically connected with the contact pins, and the other end of each lead is electrically connected with a specific part of the PCB and then penetrates through the PCB to be electrically connected with a specific part of the sounding cavity. The mode needs a plurality of contact pins to be welded with the PCB in sequence, so that the buzzer is very complicated.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need for a buzzer mechanism that can make the installation of the buzzer more simplified.

The technical scheme is as follows:

a buzzer mechanism, comprising: buzzing casing, contact pin, electrically conductive piece and installation lid, the contact pin with installation lid integrated into one piece, just be equipped with the welding portion on the installation lid, the welding portion with the one end of contact pin is inconsistent, the one end of electrically conductive piece with buzzing casing electric connection, the other end of electrically conductive piece passes through the welding portion with contact pin electric connection.

When the buzzer mechanism is used, the welding part is additionally arranged on the installation cover body, on one hand, the electric conduction of the conductive piece and the contact pin is ensured, on the other hand, the one end of the conductive piece is fixed on the installation cover body, and the accidental disconnection of the conductive piece and the contact pin is avoided. In addition, when the welding part is additionally arranged, the welding part can be additionally arranged after the contact pin is arranged in the mounting cover body, or the welding part can be additionally arranged at the end part of the contact pin before the contact pin is inserted into the mounting cover body. Compared with the traditional buzzer, the buzzer assembly structure realizes the electrical connection between the conductive piece and the contact pin through the welding part, and the electrical conduction between the piezoelectric component and the contact pin. The mode that traditional bee calling organ need carry out electrical connection (or switch on) with the help of the PCB board has been replaced promptly for bee calling organ's installation is more simplified.

The technical solution is further explained below:

the buzzer mechanism further comprises a fixing piece, the fixing piece is sleeved on the contact pin, a mounting hole is formed in the mounting cover body, the contact pin is inserted into the mounting hole, and the fixing piece is abutted to the hole wall of the mounting hole.

The buzzer mechanism further comprises a pad, the pad is arranged at the end part of the contact pin, and the conductive piece is electrically connected with the pad.

The buzzer mechanism further comprises an insulating pad, an adapting hole corresponding to the mounting hole is formed in the insulating pad, and the bonding pad protrudes out of the mounting hole and is abutted to the wall of the adapting hole.

The ratio of the depth of the part of the welding disc of the buzzer mechanism, which is positioned in the mounting hole, to the height of the part of the welding disc, which protrudes out of the mounting hole, is 3: 1.

The installation lid includes mounting panel and mounting sleeve, be equipped with on the mounting panel the mounting hole, mounting sleeve installs on the mounting panel, mounting sleeve with the mounting hole is corresponding, just mounting sleeve is used for the cover to establish the outside of contact pin.

The fixing piece is movably arranged on the contact pin, an annular groove is formed in the side wall of the installation sleeve, and the fixing piece is inserted into the annular groove and is in interference fit with the installation sleeve.

The buzzer mechanism further comprises an adhesive piece, and the piezoelectric assembly is connected with the buzzer shell through the adhesive piece.

The piezoelectric assembly comprises a piezoelectric piece and a conducting piece, the piezoelectric piece is arranged on the conducting piece, and the piezoelectric piece is electrically connected with the contact pin through the conducting piece.

Drawings

Fig. 1 is a schematic structural diagram of a buzzer mechanism according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A shown in FIG. 1;

fig. 3 is a schematic view of a partial structure of a buzzer mechanism according to an embodiment of the present invention.

Description of reference numerals:

100. the piezoelectric module comprises a buzzer shell, 110, a piezoelectric component, 111, a piezoelectric sheet, 112, a conducting strip, 200, a pin, 210, a fixing piece, 220, a welding disc, 300, a conducting piece, 400, an installation cover body, 410, a welding part, 420, an insulating pad, 421, an adapting hole, 430, an installation plate, 440, an installation sleeve, 441, an annular groove, 500 and an adhesive piece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.

As shown in fig. 1 to 3, in one embodiment, a buzzer mechanism includes: buzzing casing 100, contact pin 200, electrically conductive piece 300 and installation lid 400, contact pin 200 with installation lid 400 integrated into one piece, just be equipped with welding portion 410 on the installation lid 400, welding portion 410 with the one end of contact pin 200 is inconsistent, the one end of electrically conductive piece 300 with buzzing casing 100 electric connection, the other end of electrically conductive piece 300 passes through welding portion 410 with contact pin 200 electric connection.

When the buzzer mechanism is used, the welding part 410 is additionally arranged on the installation cover body 400, so that on one hand, the electric conduction between the conductive piece 300 and the contact pin 200 is ensured, on the other hand, the fixation of one end of the conductive piece 300 on the installation cover body 400 is realized, and the accidental circuit breaking of the conductive piece 300 and the contact pin 200 is avoided. In addition, when the soldering portion 410 is additionally provided, the soldering portion may be additionally provided after the pin 200 is mounted in the mounting cover 400, or may be additionally provided at an end portion of the pin 200 before the pin 200 is inserted into the mounting cover 400. Compared with the conventional buzzer, the buzzer assembly structure realizes the electrical connection between the conductive element 300 and the pin 200 and the electrical conduction between the piezoelectric element 110 and the pin 200 through the welding part 410. The mode that traditional bee calling organ need carry out electrical connection (or switch on) with the help of the PCB board has been replaced promptly for bee calling organ's installation is more simplified.

As shown in fig. 1 and 3, in one embodiment, the buzzer mechanism further comprises a fixing member 210. The fixing part 210 is sleeved on the contact pin 200, a mounting hole is formed in the mounting cover 400, the contact pin 200 is inserted into the mounting hole, and the fixing part 210 is abutted to the hole wall of the mounting hole. Specifically, the hole wall of the mounting hole may be an elastic hole wall, that is, when the pin 200 is inserted into the mounting hole, the fixing element 210 elastically interferes with the hole wall of the mounting hole, so as to fix the pin 200 in the mounting hole. Further, the purpose of the fixing members 210 is to ensure that the pins 200 do not come loose from the mounting cover 400, i.e. the number of the fixing members 210 may be one or more than two. The attachment of the fixing member 210 to the pin 200 may also be eliminated if the pin 200 can be directly fixed to the mounting cover 400.

As shown in fig. 1 and 3, in one embodiment, the buzzer mechanism further comprises a pad 220. The bonding pad 220 is mounted at the end of the pin 200, and the conductive member 300 is electrically connected to the bonding pad 220. Specifically, the conductive member 300 is a wire or a lead. The size of the surface of the pad 220 is larger than that of the end of the pin 200, so that the contact area between the pin 200 and the conductive member 300 is increased by the pad 220, i.e., the electrical connection between the pin 200 and the conductive member 300 is more convenient.

As shown in fig. 2 and 3, in one embodiment, the buzzer mechanism further comprises an insulating pad 420. The insulating pad 420 is provided with an adaptive hole 421 corresponding to the mounting hole, and the pad 220 protrudes out of the mounting hole and abuts against the wall of the adaptive hole 421. The ratio of the depth of the portion of the pad 220 located in the mounting hole to the height of the portion of the pad 220 protruding out of the mounting hole is 3: 1. Specifically, the insulating pad 420 is an elastic pad. The insulating pad 420 can prevent the mounting cover 400 from directly contacting and rubbing against the piezoelectric element 110. In addition, a part of the bonding pad 220 protrudes from the mounting hole and abuts against the hole wall of the adapting hole 421, so that the aperture of the adapting hole 421 is consistent with the aperture of the mounting hole, and meanwhile, the surface area of the bonding pad 220 can be fully utilized when the conductive piece 300 is welded with the bonding pad 220, and the insulating pad 420 is prevented from covering the bonding pad 220 due to elastic deformation.

As shown in fig. 1, in one embodiment, the mounting cover 400 includes a mounting plate 430 and a mounting sleeve 440, the mounting plate 430 is provided with the mounting hole, the mounting sleeve 440 is mounted on the mounting plate 430, the mounting sleeve 440 corresponds to the mounting hole, and the mounting sleeve 440 is configured to be sleeved outside the pin 200. Specifically, the contact pins 200 are more than two, and the contact pins 200 pass through the installation sleeve 440 and then penetrate out, so that on one hand, the phenomenon that the adjacent contact pins 200 are accidentally wound can be avoided, and a limiting effect is achieved. On the other hand, the insertion pin 200 can pass through the pipeline of the installation sleeve 440 to be installed, so that the insertion pin 200 is prevented from generating angular deviation after being installed on the installation cover 400, and the installation effect of the insertion pin 200 is improved.

As shown in fig. 1, in one embodiment, the fixing element 210 is movably mounted on the pin 200, an annular groove 441 is formed on a sidewall of the mounting sleeve 440, and the fixing element 210 is inserted into the annular groove 441 to be in interference fit with the mounting sleeve 440. Specifically, the fixing member 210 is a fixing ring or a protrusion. Sometimes, depending on the installation requirements, it may be desirable to determine the length of the pin 200 that passes out of the mounting sleeve 440. In one embodiment, when the position of the annular groove 441 in the mounting sleeve 440 is determined, the position of the fixing member 210 on the pin 200 is changed, and then the length of the pin 200 extending out of the mounting sleeve 440 is changed after the fixing member 210 is abutted with the annular groove 441. Further, the length of the pin 200 penetrating through the mounting sleeve 440 sometimes includes more than two specific lengths, and at this time, more than two annular grooves 441 may be formed on the inner wall of the mounting sleeve 440 according to the specific lengths, so that the applicability of the mounting cover 400 is greatly improved. In addition, the first and second substrates are,

as shown in fig. 1, in one embodiment, the buzzer mechanism further comprises an adhesive 500. The piezoelectric element 110 is connected to the buzzer housing 100 through the adhesive 500. Specifically, the adhesive member 500 is glue or double-sided tape. The buzzer mechanism is more convenient to assemble by directly bonding the adhesive piece 500.

As shown in fig. 1, in one embodiment, the buzzer housing 100 is provided with a piezoelectric element 110, a sounding cavity is further provided inside the buzzer housing, the mounting cover 400 is mounted and matched with the buzzer housing 100, and the piezoelectric element 110 is electrically connected with the conductive element 300. The piezoelectric element 110 includes a piezoelectric sheet 111 and a conductive sheet 112, the piezoelectric sheet 111 is mounted on the conductive sheet 112, and the piezoelectric sheet 111 and the pin 200 are electrically connected through the conductive member 300. Specifically, when an external force is applied to the piezoelectric patch 111, a polarization phenomenon occurs inside the piezoelectric patch 111, and charges with opposite polarities appear on two opposite surfaces of the piezoelectric patch 111, and the charges are transmitted to a specific part of the sounding cavity through the conductive sheet 112, so that the buzzer is finally sounded.

In one embodiment, the number of the pins 200 is more than two according to the use requirement or installation requirement of the buzzer. Firstly, in order to ensure the assembly tightness of the buzzer. The buzzer housing 100 and the mounting cover 400 are attached to each other. The conventional buzzer needs to be individually and sequentially soldered to the pins 200 through a PCB. Therefore, when the conventional buzzer is assembled, the cover 400 can be inserted and mounted for further mounting only after the PCB and the two or more pins 200 are completely welded. In this embodiment, the buzzer mechanism replaces the PCB board with the welding portion 410, at this time, more than two pins 200 and the mounting cover 400 can be directly and integrally formed during processing, and then the conductive member 300 and the preset welding portion 410 are only required to be welded, so that the conductive member 300 and the pins 200 can be electrically connected. (in the case of the conventional buzzer, if the pin 200 is inserted into the mounting cover 400 or the pin 200 and the mounting cover 400 are integrally formed at first, since a specific portion of the PCB is not obvious, the difficulty of electrical connection between the pin 200 and the PCB is greatly increased.)

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A buzzer mechanism, comprising: buzzing casing, contact pin, electrically conductive piece and installation lid, the contact pin with installation lid integrated into one piece, just be equipped with the welding portion on the installation lid, the welding portion with the one end of contact pin is inconsistent, the one end of electrically conductive piece with buzzing casing electric connection, the other end of electrically conductive piece passes through the welding portion with contact pin electric connection.

2. The buzzer mechanism of claim 1, further comprising a fixing member, wherein the fixing member is sleeved on the contact pin, the mounting cover is provided with a mounting hole, the contact pin is inserted into the mounting hole, and the fixing member is abutted against the hole wall of the mounting hole.

3. The buzzer mechanism of claim 2, further comprising a pad mounted at an end of the pin, the conductive member being electrically connected to the pad.

4. The buzzer mechanism of claim 3, further comprising an insulating pad, wherein the insulating pad defines an adaptive hole corresponding to the mounting hole, and the pad protrudes from the mounting hole and abuts against a wall of the adaptive hole.

5. The buzzer mechanism of claim 4, wherein the ratio of the depth of the portion of the pad in the mounting hole to the height of the portion of the pad protruding through the mounting hole is 3: 1.

6. The buzzer mechanism of claim 2, wherein the mounting cover includes a mounting plate and a mounting sleeve, the mounting plate is provided with the mounting hole, the mounting sleeve is mounted on the mounting plate, the mounting sleeve corresponds to the mounting hole, and the mounting sleeve is used for being sleeved outside the contact pin.

7. The buzzer mechanism of claim 6, wherein the fixing element is movably mounted on the pin, and an annular groove is formed on a side wall of the mounting sleeve, and the fixing element is inserted into the annular groove to be in interference fit with the mounting sleeve.

8. The buzzer mechanism of claim 1, wherein the buzzer shell is provided with a piezoelectric element, the buzzer shell is further provided with a sounding cavity inside, the mounting cover is in mounting fit with the buzzer shell, and the piezoelectric element is electrically connected with the conductive element.

9. The buzzer mechanism of claim 8, wherein the piezoelectric element comprises a piezoelectric patch and a conductive patch, the piezoelectric patch being mounted on the conductive patch, the piezoelectric patch being electrically connected to the contact pin through the conductive member.

10. The buzzer mechanism of claim 8, further comprising an adhesive, wherein the piezoelectric element is connected to the buzzer housing through the adhesive.