CN210639973U

CN210639973U - Dampproofing high temperature resistant type electron buzzer

Info

Publication number: CN210639973U
Application number: CN201921524646.4U
Authority: CN
Inventors: 钱苏文
Original assignee: Jiangsu Wanzheng Electronic Technology Co ltd
Current assignee: Jiangsu Wanzheng Electronic Technology Co ltd
Priority date: 2019-09-15
Filing date: 2019-09-15
Publication date: 2020-05-29
Anticipated expiration: 2029-09-15

Abstract

The utility model relates to a bee calling organ technical field just discloses a dampproofing high temperature resistant type electronic buzzer, which comprises a housin, the top fixed mounting of casing has the top cap, the phonate hole that quantity is four is seted up at the top of top cap, the casing has the diaphragm that is located the casing inside with relative one side fixed mounting of top cap, the inside fixed mounting of casing has the shrouding, the inside of casing and the bottom fixed mounting who is located the shrouding have the heat insulating sheet, the inside of casing and the top fixed mounting who is located the shrouding have annular magnet, the top fixed mounting of shrouding has the electromagnetic core who is located annular magnet inside, electromagnetic core's outside winding has the coil. This dampproofing high temperature resistant type electronic buzzer has stronger sound production effect and performance, and the high temperature that external circuit produced is very limited to its inside influence that can produce, and inside can effectively prevent damp, has higher life.

Description

Dampproofing high temperature resistant type electron buzzer

Technical Field

The utility model relates to a bee calling organ technical field specifically is a dampproofing high temperature resistant type electronic buzzer.

Background

Electronic buzzers are generally composed of a simple electronic circuit composed of a small number of electronic components and a piezoelectric horn composed of a piezoelectric ceramic plate and a sound-assisting cavity, and the types of buzzers are different due to different circuit forms matched with the piezoelectric horn, so the electronic buzzers are often classified into electronic buzzers and music buzzers.

The bottom of a traditional electronic buzzer is usually embedded with a self-oscillation circuit, the self-oscillation circuit is installed on a circuit board, the circuit board can directly transmit heat in the circuit board and equipment into the buzzer through the self-oscillation circuit, the self-oscillation circuit and the buzzer are aged with higher speed for a long time in the environment, the service life and the effect of the buzzer are influenced, and therefore the moisture-proof high-temperature-resistant electronic buzzer is provided to solve the problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a dampproofing high temperature resistant type electronic buzzer possesses advantages such as dampproofing high temperature resistant, has solved traditional electronic buzzer bottom and has inlayed the self-oscillation circuit usually, and it is installed on the circuit board, can be directly spread into the buzzer inside with the heat in circuit board area heat and the equipment through the self-oscillation circuit, and the self-oscillation circuit that is in under this kind of environment for a long time can be ageing-accelerated with buzzer inside, influences the life of buzzer and the problem of effect.

(II) technical scheme

For realizing the purpose of the above-mentioned dampproofing high temperature resistance, the utility model provides a following technical scheme: a damp-proof high-temperature-resistant electronic buzzer comprises a shell, a top cover is fixedly mounted at the top of the shell, four sound holes are formed in the top of the top cover, a diaphragm positioned in the shell is fixedly mounted on one side, opposite to the top cover, of the shell, a sealing plate is fixedly mounted in the shell, a heat insulation sheet is fixedly mounted in the shell and at the bottom of the sealing plate, an annular magnet is fixedly mounted in the shell and at the top of the sealing plate, an electromagnetic iron core positioned in the annular magnet is fixedly mounted at the top of the sealing plate, a coil is wound outside the electromagnetic iron core, two ends of the coil are electrically connected with a connecting wire which penetrates through the sealing plate and the heat insulation sheet and extends to the right side of the shell, a guide pillar positioned in the electromagnetic iron core is fixedly mounted at the top of the sealing plate, and a screw which is positioned in the heat insulation sheet and extends to the inside of the guide, the top cartridge of diaphragm has the spliced pole that extends to the guide pillar top, the outside of spliced pole just is located diaphragm top fixed mounting and has the soundboard, the outside fixed mounting of spliced pole has the permanent magnetism ring that is located diaphragm and the relative one side of electromagnetic core, the bottom outside fixed mounting of casing has the fixed foot that the quantity is three.

Preferably, the fixed feet are distributed in an equiangular ring shape, and mounting holes are formed in the tops of the fixed feet.

Preferably, the inside of the top cover and the inside of the shell are both fixedly provided with a pressing ring which is respectively contacted with the top and the bottom of the diaphragm, and the top cover and the shell are bonded through PVC glue.

Preferably, the four sound holes are annularly distributed on the top cover at equal angles, and the screws are in threaded connection with the inner part of the guide pillar.

Preferably, the bottom of the heat insulation sheet is provided with an opening matched with the screw, and the heat insulation sheet is a polyurethane foam board.

Preferably, the shrouding is the polyethylene fiber board, the socket of connecting wire looks adaptation is seted up on the right side of casing.

(III) advantageous effects

Compared with the prior art, the utility model provides a dampproofing high temperature resistant type electronic buzzer possesses following beneficial effect:

the damp-proof high-temperature-resistant electronic buzzer is installed through three fixing pins when in use, a connecting wire is connected into an external oscillating circuit, a coil can generate a continuous alternate magnetic field after being introduced with oscillating current, alternating magnetism can be brought to a guide pillar positioned at the center of the magnetic field, the magnetic field effect can be increased by matching with an annular magnet, the magnetic field intensity formed inside the guide pillar is improved, a continuous and repeated pulling force and a repulsive force can be formed on a permanent magnetic ring, the permanent magnetic ring drives the connecting pillar to vibrate up and down under the continuous and repeated magnetic field effect, so that a diaphragm and a resonator are driven to vibrate in the same direction, the resonator is matched with the diaphragm to resonate, the oscillation strength of air is improved, the energy carried by air oscillation is increased, the oscillated air can be outwards propagated through an acoustic hole, the diaphragm and a sealing cavity can be formed inside the diaphragm of a shell by the sealing plate, and the rebound strength is, can guarantee simultaneously that external moisture can not get into, avoid inside circular telegram position short circuit, lead to bee calling organ to damage, separate simultaneously that the cooperation shrouding of temperature piece can block the temperature of dissipating on the circuit, reduce the influence of ambient temperature to the inside production of bee calling organ, this bee calling organ simple structure is reasonable, has stronger sound production effect and performance, and the high temperature that external circuit produced is very limited to its inside influence that can produce, and inside can effectively prevent damp, has higher life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the top cover of the present invention.

In the figure: the acoustic resonator comprises a shell 1, a top cover 2, a sound hole 3, a diaphragm 4, a sealing plate 5, a heat insulation sheet 6, a ring magnet 7, an electromagnetic iron core 8, a coil 9, a connecting wire 10, a guide post 11, a screw 12, a connecting post 13, a resonator plate 14, a permanent magnet ring 15 and a fixing pin 16.

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. 1-2, a moisture-proof high temperature resistant electronic buzzer comprises a housing 1, a top cover 2 is fixedly mounted on the top of the housing 1, four sound holes 3 are formed on the top of the top cover 2, a diaphragm 4 located inside the housing 1 is fixedly mounted on one side of the housing 1 opposite to the top cover 2, compression rings respectively contacting with the top and the bottom of the diaphragm 4 are fixedly mounted inside the top cover 2 and inside the housing 1, the top cover 2 and the housing 1 are bonded through PVC glue, a sealing plate 5 is fixedly mounted inside the housing 1, a heat insulation sheet 6 is fixedly mounted inside the housing 1 and at the bottom of the sealing plate 5, an annular magnet 7 is fixedly mounted inside the housing 1 and at the top of the sealing plate 5, an electromagnetic core 8 located inside the annular magnet 7 is fixedly mounted at the top of the sealing plate 5, a coil 9 is wound outside the electromagnetic core 8, two ends of the coil 9 are electrically connected with a connecting wire 10 extending through the sealing plate 5 and the heat insulation sheet 6 to the right side, the sealing plate 5 is a polyethylene fiber plate, the right side of the shell 1 is provided with a socket matched with the connecting wire 10, the top of the sealing plate 5 is fixedly provided with a guide post 11 positioned inside the electromagnetic iron core 8, the bottom of the sealing plate 5 is inserted with a screw 12 positioned inside the heat insulating plate 6 and extending to the inside of the guide post 11, four sound holes 3 are distributed on the top cover 2 in an annular equal angle manner, the screw 12 is in threaded connection with the inside of the guide post 11, the bottom of the heat insulating plate 6 is provided with an opening matched with the screw 12, the heat insulating plate 6 is a polyurethane foam plate, the top of the diaphragm 4 is inserted with a connecting post 13 extending above the guide post 11, the outside of the connecting post 13 and the top of the diaphragm 4 are fixedly provided with a resonance plate 14, the outside of the connecting post 13 is fixedly provided with a permanent magnet ring 15 positioned on one side of the diaphragm 4 opposite to the electromagnetic iron core 8, the, the fixed feet 16 are distributed in an equal-angle annular shape, mounting holes are formed in the tops of the fixed feet 16, when the vibrating wire is used, the vibrating wire is mounted through the three fixed feet 16, the connecting wire 10 is connected into an external oscillating circuit, the coil 9 can generate a continuous alternate magnetic field after being fed with oscillating current, the guide pillar 11 positioned in the center of the magnetic field can carry out alternate magnetism, the magnetic field effect can be increased by matching with the annular magnet 7, the magnetic field intensity formed inside the guide pillar 11 is improved, continuous repeated pulling force and repulsive force can be formed on the permanent magnet ring 15, the permanent magnet ring 15 drives the connecting column 13 to vibrate up and down under the continuous repeated magnetic field effect, so that the diaphragm 4 and the resonance plate 14 are driven to vibrate in the same direction, the resonance plate 14 is matched with the diaphragm 4 to resonate, the oscillating strength of air is improved, the energy carried by air oscillation is increased, the oscillated air can be transmitted outwards through the sound, diaphragm 4 and shrouding 5 can form seal chamber with the inside of casing 1, improve 4 resilience strength of diaphragm, can guarantee simultaneously that external moisture can not get into, avoid inside circular telegram position short circuit, lead to bee calling organ to damage, it can block the temperature of circuit escape to separate simultaneously 6 cooperation shroudings 5 of warm bracings, reduce the influence of ambient temperature to the inside production of bee calling organ, this bee calling organ simple structure is reasonable, stronger sound production effect and performance have, the influence that the high temperature that external circuit produced can produce inside it is very limited, and inside can effectively prevent damp, has higher life.

To sum up, when the moistureproof high temperature resistant electronic buzzer is used, the moistureproof high temperature resistant electronic buzzer is installed through three fixing pins 16, the connecting wire 10 is connected to an external oscillating circuit, the coil 9 can generate a continuous alternate magnetic field after being electrified with oscillating current, the guide post 11 positioned in the center of the magnetic field can carry alternate magnetism, the magnetic field effect can be increased by matching with the ring magnet 7, the magnetic field intensity formed inside the guide post 11 is improved, a continuous and repeated pulling force and repulsion force can be formed on the permanent magnet ring 15, the permanent magnet ring 15 drives the connecting post 13 to vibrate up and down under the continuous and repeated magnetic field effect, so that the diaphragm 4 and the resonance plate 14 are driven to vibrate in the same direction, the resonance plate 14 is matched with the diaphragm 4 to resonate, the oscillating strength of air is improved, the energy carried by air oscillation is increased, the oscillated air can be outwards propagated through the sound holes 3, the diaphragm 4 and the seal plate 5 can form a sealed cavity inside the shell, the rebound strength of the membrane 4 is improved, and simultaneously, the outside moisture can be ensured not to enter, the damage of the buzzer caused by the short circuit of the internal electrified part is avoided, meanwhile, the heat insulation sheet 6 is matched with the seal plate 5 to block the temperature dissipated from the circuit and reduce the influence of the external temperature on the interior of the buzzer, the buzzer has simple and reasonable structure and strong sound production effect and performance, the influence of the high temperature generated by the external circuit on the interior of the buzzer is very limited, the interior of the electronic buzzer can be effectively protected from moisture, the service life is longer, the problem that a self-excited oscillation circuit is usually embedded at the bottom of the traditional electronic buzzer is solved, the self-excited oscillation circuit is installed on the circuit board, heat in the circuit board and equipment can be directly transmitted into the buzzer through the self-excited oscillation circuit, the self-excited oscillation circuit and the buzzer are aged with higher speed for a long time under the environment, and the service life and the effect of the buzzer are influenced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 dampproofing high temperature resistant type electron buzzer, includes casing (1), its characterized in that: the sound insulation structure is characterized in that a top cover (2) is fixedly mounted at the top of the shell (1), four sound holes (3) are formed in the top of the top cover (2), diaphragms (4) located inside the shell (1) are fixedly mounted on one side, opposite to the top cover (2), of the shell (1), a sealing plate (5) is fixedly mounted inside the shell (1), a heat insulation sheet (6) is fixedly mounted at the bottom of the sealing plate (5) inside the shell (1), an annular magnet (7) is fixedly mounted at the top of the sealing plate (5) inside the shell (1), an electromagnetic iron core (8) located inside the annular magnet (7) is fixedly mounted at the top of the sealing plate (5), a coil (9) is wound outside the electromagnetic iron core (8), and connecting wires (10) which penetrate through the sealing plate (5) and the heat insulation sheet (6) and extend to the right side of the shell (1) are electrically connected to two ends of the coil (9), the utility model discloses a diaphragm electromagnetic core's (8) relative permanent magnetism ring, including shrouding (5), the top fixed mounting of shrouding (5) has guide pillar (11) that are located electromagnetic core (8) inside, the bottom cartridge of shrouding (5) has inside that is located heat insulating sheet (6) and extends to inside screw (12) of guide pillar (11), the top cartridge of diaphragm (4) has spliced pole (13) that extend to guide pillar (11) top, the outside of spliced pole (13) just is located diaphragm (4) top fixed mounting and has soundboard (14), the outside fixed mounting of spliced pole (13) has permanent magnetism ring (15) that are located diaphragm (4) and electromagnetic core (8) one side relatively, the bottom outside fixed mounting of casing (1) has quantity to be three fixed foot (16).

2. The moisture-proof high-temperature-resistant electronic buzzer as claimed in claim 1, wherein: the fixed feet (16) are distributed in an equiangular annular shape, and mounting holes are formed in the tops of the fixed feet (16).

3. The moisture-proof high-temperature-resistant electronic buzzer as claimed in claim 1, wherein: the inside of top cap (2) and the inside of casing (1) all fixed mounting have respectively with diaphragm (4) top and the ring that sticiss of bottom contact, top cap (2) and casing (1) are through PVC glue bonding.

4. The moisture-proof high-temperature-resistant electronic buzzer as claimed in claim 1, wherein: the four sound holes (3) are distributed on the top cover (2) in an annular equal angle mode, and the screws (12) are in threaded connection with the inner portion of the guide pillar (11).

5. The moisture-proof high-temperature-resistant electronic buzzer as claimed in claim 1, wherein: the bottom of the heat insulation sheet (6) is provided with an opening matched with the screw (12), and the heat insulation sheet (6) is a polyurethane foam board.

6. The moisture-proof high-temperature-resistant electronic buzzer as claimed in claim 1, wherein: the shrouding (5) are polyethylene fiber board, the socket of being fit for with connecting wire (10) is seted up on the right side of casing (1).