Piezoelectric ceramic buzzer

Abstract

The utility model discloses a piezoelectric ceramic buzzer, and relates to the technical field of buzzers, the piezoelectric ceramic buzzer comprises a device main body, the top of the device main body is provided with a volume adjusting mechanism, and the bottom of the device main body is provided with a heat dissipation mechanism. According to the utility model, the heat dissipation mechanism is arranged, and the interior of the partition plate is designed to be perforated, so that when the device is used, the motor is started to drive the fan blades to rotate, the air circulation speed in the device main body is accelerated, the device main body is rapidly cooled, internal components are prevented from being damaged due to high temperature, and the heat dissipation effect of the device is improved; a buffer mechanism is arranged, a positioning rod and a fixing base form a telescopic structure through a buffer spring, a buffer piece is bonded with a clamping groove, when the device is used, a device body is prone to being impacted by external force, internal components are damaged, the buffer spring can absorb acting force generated by impact through deformation, the internal components are prevented from being damaged, and the service life of the device is prolonged. Therefore, the stability and the safety of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of buzzers, in particular to a piezoelectric ceramic buzzer. Background Art

[0002] The piezoelectric ceramic buzzer is mainly composed of a multivibrator, a piezoelectric buzzer, an impedance matcher, a resonance box, a shell, etc. The buzzer is mainly used for warning and reminder. Since the buzzer works continuously, high temperature is easily generated inside, and it is easily impacted by external forces during installation and use, causing damage to internal components. In addition, the volume of the existing buzzer is fixed in decibels, which is not convenient for volume adjustment and cannot meet the needs of different scenarios. In order to solve the above problems, a piezoelectric ceramic buzzer is needed.

[0003] The existing piezoelectric ceramic buzzer has the problems of being inconvenient to adjust the volume, unable to provide buffer protection, and having poor heat dissipation effect during operation. Therefore, a piezoelectric ceramic buzzer is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a piezoelectric ceramic buzzer to solve the problems of the existing piezoelectric ceramic buzzer when in use, such as inconvenient volume adjustment, inability to provide buffer protection, and poor heat dissipation effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a piezoelectric ceramic buzzer, comprising a device body, a volume adjustment mechanism being installed on the top of the device body.

[0006] A heat dissipation mechanism is installed at the bottom of the device body.

[0007] A buffer mechanism is installed at the bottom of the heat dissipation mechanism.

[0008] Preferably, the volume adjustment mechanism includes an adjustment slot, an adjustment sleeve, a dustproof net and sound-absorbing cotton. The outer wall of the device body is provided with an adjustment slot, the outer wall of the adjustment slot is installed with an adjustment sleeve, the inner wall of the adjustment sleeve is installed with a dustproof net, and sound-absorbing cotton is bonded to the bottom of the adjustment sleeve.

[0009] Preferably, the adjustment groove is movably connected to the adjustment sleeve, and the bottom of the sound-absorbing cotton is tightly fitted with the top of the inner wall of the device body.

[0010] Preferably, the heat dissipation mechanism includes a partition, a motor, fan blades and a heat dissipation sleeve. The bottom of the device body is installed with a partition, the bottom of the partition is installed with a motor, the bottom of the motor is installed with fan blades, and the bottom of the device body is installed with a heat dissipation sleeve.

[0011] Preferably, the partition is welded to the device body, and the side wall of the heat dissipation sleeve is of open-hole design.

[0012] Preferably, the buffer mechanism includes a limit rod, a positioning rod, a buffer spring, a fixing seat, a slot and a buffer plate. The bottom of the heat dissipation sleeve is installed with a limit rod, the bottom of the heat dissipation sleeve is installed with a positioning rod, the outer wall of the positioning rod is installed with a buffer spring, the outer wall of the positioning rod is installed with a fixing seat, the inner wall of the fixing seat is provided with a slot, and the inner wall of the slot is installed with a buffer plate.

[0013] Preferably, the positioning rod forms a telescopic structure with a fixing seat through a buffer spring, and the card slot is bonded to the buffer sheet.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model has a volume adjustment mechanism, an adjustment sleeve and a movably connected device body, so that the bottom of the sound-absorbing cotton fits tightly against the top of the inner wall of the device body. When the device is in use, the sound-absorbing cotton is rotated by rotating the adjustment sleeve. By controlling the size of the sound outlet hole on the top of the device body covered by the sound-absorbing cotton, the sound volume can be controlled, meeting the practical needs of different scenarios and increasing the practicality of the device. The dustproof net prevents dust from entering the device body, thereby increasing the cleanliness of the device.

[0016] 2. The utility model has a heat dissipation mechanism and an open-hole design inside the partition. When the device is in use, the fan blades are driven to rotate by starting the motor, which accelerates the air circulation speed inside the device body, allowing the device body to cool down quickly, avoiding damage to internal components due to high temperature, and improving the heat dissipation effect of the device.

[0017] 3. The utility model provides a buffer mechanism, in which the positioning rod and the fixing seat form a telescopic structure through a buffer spring, and the buffer sheet and the card slot are bonded. When the device is in use, the device body is easily impacted by external forces, causing damage to internal components. The buffer spring can absorb the force generated by the impact through deformation, avoiding damage to internal components, thereby increasing the stability and safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model from the front;

[0019] Figure 2 This is a structural diagram of the volume adjustment mechanism of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the heat dissipation mechanism of the utility model;

[0021] Figure 4 It is a structural diagram of the buffer mechanism of the utility model.

[0022] In the figure: 1. Device body; 2. Volume adjustment mechanism; 201. Adjustment slot; 202. Adjustment sleeve; 203. Dust net; 204. Sound-absorbing cotton; 3. Heat dissipation mechanism; 301. Partition; 302. Motor; 303. Fan blade; 304. Heat dissipation sleeve; 4. Buffer mechanism; 401. Limit rod; 402. Positioning rod; 403. Buffer spring; 404. Fixing seat; 405. Slot; 406. Buffer sheet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] The following describes an embodiment of the present invention based on its overall structure.

[0025] See also Figure 1-4 A piezoelectric ceramic buzzer includes a device body 1, a volume adjustment mechanism 2 is installed on the top of the device body 1, and the volume adjustment mechanism 2 includes an adjustment groove 201, an adjustment sleeve 202, a dustproof net 203 and a sound-absorbing cotton 204. The outer wall of the device body 1 is provided with an adjustment groove 201, the outer wall of the adjustment groove 201 is installed with an adjustment sleeve 202, the inner wall of the adjustment sleeve 202 is installed with a dustproof net 203, and the bottom of the adjustment sleeve 202 is bonded with a sound-absorbing cotton 204. The adjustment groove 201 and the adjustment sleeve 202 are movably connected, and the bottom of the sound-absorbing cotton 204 is connected to the device body 1. The top of the inner wall fits tightly, and through the volume adjustment mechanism 2, the adjustment sleeve 202 is movably connected to the device body 1, and the bottom of the sound-absorbing cotton 204 fits tightly with the top of the inner wall of the device body 1. When using the device, the sound-absorbing cotton 204 is driven to rotate by rotating the adjustment sleeve 202. By controlling the size of the sound outlet hole on the top of the device body 1 covered by the sound-absorbing cotton 204, the volume of the sound can be controlled to meet the practical needs of different scenarios and increase the practicality of the device. The setting of the dustproof net 203 prevents dust from entering the inside of the device body 1, thereby increasing the cleanliness of the device.

[0026] See also Figure 1-4, a piezoelectric ceramic buzzer, a heat dissipation mechanism 3 is installed at the bottom of the device body 1, the heat dissipation mechanism 3 includes a partition 301, a motor 302, fan blades 303 and a heat dissipation sleeve 304, the bottom of the device body 1 is installed with a partition 301, the bottom of the partition 301 is installed with a motor 302, the bottom of the motor 302 is installed with fan blades 303, the bottom of the device body 1 is installed with a heat dissipation sleeve 304, the partition 301 and the device body 1 are welded, the side wall of the heat dissipation sleeve 304 is an open-hole design, through the setting of the heat dissipation mechanism 3, the interior of the partition 301 is an open-hole design, when using the device, by starting the motor 302 to drive the fan blades 303 to rotate, the air circulation speed inside the device body 1 is accelerated, the device body 1 is quickly cooled, the internal components are prevented from being damaged due to high temperature, and the heat dissipation effect of the device is improved.

[0027] See also Figure 1-4 A piezoelectric ceramic buzzer, a buffer mechanism 4 is installed at the bottom of the heat dissipation mechanism 3, the buffer mechanism 4 includes a limit rod 401, a positioning rod 402, a buffer spring 403, a fixing seat 404, a card slot 405 and a buffer sheet 406, a limit rod 401 is installed at the bottom of the heat dissipation sleeve 304, a positioning rod 402 is installed at the bottom of the heat dissipation sleeve 304, a buffer spring 403 is installed on the outer wall of the positioning rod 402, a fixing seat 404 is installed on the outer wall of the positioning rod 402, a card slot 405 is opened on the inner wall of the fixing seat 404, and a buffer sheet 406 is installed on the inner wall of the card slot 405 06. The positioning rod 402 forms a telescopic structure with the fixing seat 404 through the buffer spring 403, and the card slot 405 is bonded to the buffer sheet 406. Through the provided buffer mechanism 4, the positioning rod 402 forms a telescopic structure with the fixing seat 404 through the buffer spring 403, and the buffer sheet 406 is bonded to the card slot 405. When the device is in use, the device body 1 is easily impacted by external force, resulting in damage to internal components. The setting of the buffer spring 403 can absorb the force generated by the impact through deformation, thereby avoiding damage to internal components, thereby increasing the stability and safety of the device.

[0028] Working principle: When in use, first move the device to the desired position, and then fix it with threads through the fixing seat 404. During installation or use, the device body 1 is easily impacted by external forces, causing damage to internal components. The setting of the buffer spring 403 can absorb the force generated by the impact through deformation, thereby avoiding damage to internal components, thereby increasing the stability and safety of the device. Then, the fan blades 303 are driven to rotate by starting the motor 302, accelerating the air circulation speed inside the device body 1, so that the device body 1 is quickly cooled, avoiding damage to internal components due to high temperature, and improving the heat dissipation effect of the device. Finally, according to the use requirements, the sound-absorbing cotton 204 is driven to rotate by rotating the adjustment sleeve 202. By controlling the size of the sound outlet hole on the top of the device body 1 covered by the sound-absorbing cotton 204, the volume of the sound can be controlled to meet the practical needs of different scenarios and increase the practicality of the device. The setting of the dustproof net 203 prevents dust from entering the inside of the device body 1 and increases the cleanliness of the device. In this way, the use process of the device is completed. The content not described in detail in this manual belongs to the existing technology well known to professional and technical personnel in this field.

[0029] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the protection content of the present invention.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A piezoelectric ceramic buzzer, comprising a device body (1), characterized in that: A volume adjustment mechanism (2) is installed on the top of the device body (1); A heat dissipation mechanism (3) is installed at the bottom of the device body (1); A buffer mechanism (4) is installed at the bottom of the heat dissipation mechanism (3).

2. The piezoelectric ceramic buzzer according to claim 1, characterized in that: The volume adjustment mechanism (2) comprises an adjustment slot (201), an adjustment sleeve (202), a dustproof net (203) and sound-absorbing cotton (204); the outer wall of the device body (1) is provided with the adjustment slot (201); the outer wall of the adjustment slot (201) is provided with the adjustment sleeve (202); the inner wall of the adjustment sleeve (202) is provided with the dustproof net (203); and the bottom of the adjustment sleeve (202) is bonded with sound-absorbing cotton (204).

3. The piezoelectric ceramic buzzer according to claim 2, characterized in that: The adjustment groove (201) is movably connected to the adjustment sleeve (202), and the bottom of the sound-absorbing cotton (204) is tightly fitted to the top of the inner wall of the device body (1).

4. The piezoelectric ceramic buzzer according to claim 1, characterized in that: The heat dissipation mechanism (3) comprises a partition (301), a motor (302), a fan blade (303) and a heat dissipation sleeve (304); the partition (301) is installed at the bottom of the device body (1); the motor (302) is installed at the bottom of the partition (301); the fan blade (303) is installed at the bottom of the motor (302); and the heat dissipation sleeve (304) is installed at the bottom of the device body (1).

5. The piezoelectric ceramic buzzer according to claim 4, characterized in that: The partition (301) and the device body (1) are welded, and the side wall of the heat dissipation sleeve (304) is of open-hole design.

6. The piezoelectric ceramic buzzer according to claim 4, characterized in that: The buffer mechanism (4) comprises a limiting rod (401), a positioning rod (402), a buffer spring (403), a fixing seat (404), a clamping slot (405) and a buffer sheet (406); the limiting rod (401) is installed at the bottom of the heat dissipation sleeve (304); the positioning rod (402) is installed at the bottom of the heat dissipation sleeve (304); the buffer spring (403) is installed on the outer wall of the positioning rod (402); the fixing seat (404) is installed on the outer wall of the positioning rod (402); the clamping slot (405) is provided on the inner wall of the fixing seat (404); and the buffer sheet (406) is installed on the inner wall of the clamping slot (405).

7. The piezoelectric ceramic buzzer according to claim 6, characterized in that: The positioning rod (402) forms a telescopic structure with a buffer spring (403) and a fixing seat (404), and the clamping groove (405) is bonded to the buffer sheet (406).

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