CN212724704U

CN212724704U - Piezoelectric buzzer convenient to installation

Info

Publication number: CN212724704U
Application number: CN202020786193.9U
Authority: CN
Inventors: 冯茂祥; 王永健; 弘富顺
Original assignee: Xinghua Huaxunda Electronics Co ltd
Current assignee: Xinghua Huaxunda Electronics Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-03-16
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses a piezoelectric type buzzer convenient to installation, which comprises a housin, the upper end central point of casing puts and is provided with the sound hole, the inside joint of casing has the sympathetic response piece, the bottom laminating of sympathetic response piece is connected with first sheetmetal, the bottom laminating of first sheetmetal is connected with the piezoceramics piece, the bottom laminating of piezoceramics piece is connected with the second sheetmetal. The beneficial effects of the utility model are that the outer arm fixedly connected with curb plate at the casing, the inside activity joint of curb plate has the trip, the trip can correspond the fastener joint with the connecting plate, there is the limiting block in the inside joint of one side of casing, the limiting block sets up two, it is spacing to carry out the joint to inside metal contact through the limiting block, metal contact is connected with the connecting wire, when the casing is spacing with corresponding fastener position laminating joint, metal contact and corresponding power supply line point contact, carry out the switch-on of circuit, traditional follow-up soldering connection has been avoided, the convenient high efficiency of erection joint.

Description

Piezoelectric buzzer convenient to installation

Technical Field

The utility model belongs to the technical field of buzzer, concretely relates to piezoelectric type buzzer convenient to installation.

Background

A piezoelectric buzzer is an electroacoustic transducer. The piezoelectric material is adhered to the metal sheet, and when a voltage is applied to two ends of the piezoelectric material and the metal sheet, the buzzer can generate mechanical deformation to make a sound due to the inverse piezoelectric effect.

Be CN207663789U a disclose piezoelectric type buzzer convenient to installation like the bulletin number of authorizing, fix the piezoelectric type buzzer organism on location unable adjustment base through the buckle base, wave-soldering or the harm that manual welding caused to it has been avoided, thereby the temperature resistant requirement of the casing material of piezoelectric type buzzer organism and buzzer piece has been reduced, reduce manufacturing procedure, buckle base and location unable adjustment base all set up to the integrated into one piece structure, the simple problem of production process, but do not solve the convenient high efficiency of installation joint, the problem that the buzzer connecting wire corresponds the joint and connects, need extra welded connection to interconnecting link, installation procedure is comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a piezoelectric type buzzer convenient to installation to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a piezoelectric buzzer convenient to mount comprises a shell, a sound hole is arranged at the central position of the upper end of the shell, the interior of the shell is clamped with a resonance sheet, the bottom of the resonance sheet is connected with a first metal sheet in an attaching way, the bottom of the first metal sheet is connected with a piezoelectric ceramic sheet in an attaching way, the bottom of the piezoelectric ceramic sheet is connected with a second metal sheet in an attaching way, a limiting block is clamped in one side of the shell, a metal contact is movably clamped in the limiting block, the upper end of the metal contact is embedded and clamped with a spring, the other end of the spring is in contact connection with the inside of the limiting block, the outer edge of the shell is fixedly connected with a side plate, the inside of the side plate is movably clamped with a clamping hook, the upper end fixedly connected with of trip presses the briquetting, press one side fixedly connected with shell fragment of briquetting, the other end and the casing contact of shell fragment are connected.

Preferably, the middle part of the resonance sheet is arc-shaped, and a hole corresponding to the sound hole is formed in the middle of the resonance sheet.

Preferably, the setting diameter of the first metal sheet is larger than that of the second metal sheet, the first metal sheet and the second metal sheet are both connected with connecting wires in a welding mode, and the other ends of the connecting wires are connected with the metal contacts.

Preferably, the limiting block is internally provided with a limiting groove matched with the metal contact, and the depth of the limiting block is matched with the moving stroke of the metal contact.

Preferably, the metal contact is fixedly connected with a limiting block, and the front end of the metal contact is arranged in an arc shape.

Preferably, the front end of the clamping hook is obliquely arranged, and the inside of the clamping hook is attached to and connected with the rubber plate.

Preferably, the elastic sheet is arranged in an arc shape and is arranged elastically.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a casing, including the casing, the outer arm fixedly connected with curb plate of casing, the inside activity joint of curb plate has the trip, the trip can correspond the fastener joint with the connecting plate, there is the restriction piece in the inside joint of one side of casing, the restriction piece sets up two, it is spacing to carry out the joint to the metal contact of inside through the restriction piece, metal contact and connecting wire are connected, at the casing with correspond fastener position laminating joint when spacing, metal contact and the contact of corresponding power supply line point, carry out the switch-on of circuit, traditional follow-up soldering connection has been avoided, the convenient high efficiency of erection joint.

(2) The rubber plate is connected to the inner clamping position of the clamping hook, when the clamping hook is clamped with a corresponding component, the rubber plate is a contact surface, when the device operates, energy in a vibration process can be absorbed, looseness caused by vibration in the clamping process is avoided, the connection is more stable, the upper end of the clamping hook is connected with the pressing block, and the pressing block can be more convenient to detach integrally in the device and convenient to replace and maintain.

Drawings

Fig. 1 is a schematic plan view of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of a first metal sheet connection according to the present invention;

fig. 4 is an enlarged view of the structure of fig. 1 at a according to the present invention;

fig. 5 is an enlarged view of the structure at B in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a sound hole; 3. a resonance sheet; 4. a first metal sheet; 5. piezoelectric ceramic plates; 6. a second metal sheet; 7. a connecting wire; 8. a limiting block; 9. a metal contact; 10. a spring; 11. a side plate; 12. a hook is clamped; 13. a rubber plate; 14. a pressing block; 15. an elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a piezoelectric buzzer convenient for installation, which comprises a casing 1, a sound hole 2 is formed at the center position of the upper end of the casing 1, a resonance sheet 3 is clamped inside the casing 1, a first metal sheet 4 is connected to the bottom of the resonance sheet 3, a piezoelectric ceramic sheet 5 is connected to the bottom of the first metal sheet 4, a second metal sheet 6 is connected to the bottom of the piezoelectric ceramic sheet 5, a limiting block 8 is clamped inside one side of the casing 1, a metal contact 9 is movably clamped inside the limiting block 8, a spring 10 is clamped at the upper end of the metal contact 9, the other end of the spring 10 is connected to the limiting block 8 in an internal contact manner, a side plate 11 is fixedly connected to the outer edge of the casing 1, a hook 12 is movably clamped inside the side plate 11, a pressing block 14 is fixedly connected to the upper end of the hook 12, a spring sheet 15 is fixedly connected to one side of, the other end of the spring piece 15 is in contact connection with the shell 1.

In this embodiment, preferred, the middle part of sympathetic response piece 3 sets up to the arc, and the intermediate position of sympathetic response piece 3 sets up the hole that corresponds with sound hole 2, carries out the sympathetic response of sound through curved sympathetic response piece 3, improves the volume of sound, the transmission of the sound of being convenient for of sound hole 2 that corresponds the setting.

In this embodiment, preferably, the diameter of the first metal sheet 4 is larger than the diameter of the second metal sheet 6, the connecting wires 7 are welded to the first metal sheet 4 and the second metal sheet 6, the other end of the connecting wire 7 is connected with the metal contacts 9, the metal sheets with different diameters can be welded to the connecting wires 7 conveniently, and the metal contacts 9 can be connected to corresponding lines conveniently.

In this embodiment, preferably, a limiting groove matched with the metal contact 9 is arranged inside the limiting block 8, the depth of the inner groove of the limiting block 8 is matched with the moving stroke of the metal contact 9, the metal contact 9 is clamped and limited by the limiting block 8, and the movable metal contact 9 can be electrically connected with a corresponding component in a contacting manner.

In this embodiment, preferably, the metal contact 9 is fixedly connected with a limiting block, the front end of the metal contact 9 is arranged in an arc shape, the limiting block on the metal contact 9 limits the position, the metal contact 9 is prevented from being separated, and the metal contact 9 arranged in the arc shape at the front end can be better contacted with a corresponding position to connect a circuit.

In this embodiment, preferably, the front end of the hook 12 is set up for the slope, and the rubber slab 13 is connected in the inside laminating of hook 12, and the hook 12 that sets up through the front end slope can be convenient for with correspond the fastener top open joint, and the rubber slab 13 of the inside laminating of hook 12 connection can carry out elastic contact, carries out the absorption of energy to shaking the in-process, and the joint is more stable.

In this embodiment, preferred, shell fragment 15 is the arc setting, and shell fragment 15 is the elasticity setting, presses the resilience of briquetting 14 through curved shell fragment 15, and the automatic buckle of the one end trip 12 of being convenient for installs convenient high efficiency.

The utility model discloses a theory of operation and use flow: when the device is used, the outer arm of the shell 1 is fixedly connected with a side plate 11, the inside of the side plate 11 is movably clamped with a clamping hook 12, the clamping hook 12 can be clamped with a corresponding clamping piece of a connecting plate, one side of the shell 1 is internally clamped with two limiting blocks 8, the metal contact 9 inside is clamped and limited through the limiting blocks 8, the metal contact 9 is connected with a connecting wire 7, when the shell 1 is attached to the corresponding clamping piece position for clamping and limiting, the metal contact 9 is in point contact with a corresponding power circuit for connecting the circuit, the traditional subsequent tin soldering connection is avoided, the internal clamping position of the clamping hook 12 is connected with a rubber plate 13, when the clamping hook is clamped with a corresponding component, the rubber plate 13 is a contact surface, when the device is operated, the energy in the vibration process can be absorbed, the looseness generated in the vibration process in the clamping process is avoided, the connection is more stable, and the upper end of the clamping hook 12 is, the pressing block 14 can be more convenient to replace and maintain when the device is integrally disassembled.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a piezoelectric buzzer convenient to installation, includes casing (1), its characterized in that: the sound hole (2) is arranged at the center of the upper end of the shell (1), the resonance sheet (3) is clamped in the shell (1), the first metal sheet (4) is connected to the bottom of the resonance sheet (3), the piezoelectric ceramic sheet (5) is connected to the bottom of the first metal sheet (4), the second metal sheet (6) is connected to the bottom of the piezoelectric ceramic sheet (5), the limiting block (8) is clamped in one side of the shell (1), the metal contact (9) is clamped in the internal activity of the limiting block (8), the spring (10) is clamped in the upper end of the metal contact (9), the other end of the spring (10) is connected with the limiting block (8) in an internal contact manner, the lateral edge of the shell (1) is fixedly connected with a lateral plate (11), and the clamping hook (12) is clamped in the internal activity of the lateral plate (11), the upper end of the clamping hook (12) is fixedly connected with a pressing block (14), one side of the pressing block (14) is fixedly connected with an elastic sheet (15), and the other end of the elastic sheet (15) is in contact connection with the shell (1).

2. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: the middle part of the resonance sheet (3) is arc-shaped, and the middle part of the resonance sheet (3) is provided with a hole corresponding to the sound hole (2).

3. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: first sheetmetal (4) set up the diameter and are greater than second sheetmetal (6) and set up the diameter, equal welded connection has connecting wire (7) on first sheetmetal (4) and second sheetmetal (6), the other end and the metal contact (9) of connecting wire (7) are connected.

4. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: and a limiting groove matched with the metal contact (9) is arranged in the limiting block (8), and the depth of the inner groove of the limiting block (8) is matched with the moving stroke of the metal contact (9).

5. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: the metal contact (9) is fixedly connected with a limiting block, and the front end of the metal contact (9) is arranged in an arc shape.

6. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: the front end of the clamping hook (12) is obliquely arranged, and the inside of the clamping hook (12) is attached to a connecting rubber plate (13).

7. The piezo buzzer of claim 1, wherein said piezo buzzer is mounted to said housing: the elastic sheet (15) is arranged in an arc shape, and the elastic sheet (15) is arranged elastically.