阅读说明：本技术 一种双摆式压电风机 (Double-pendulum piezoelectric fan ) 是由 田晓超 李庆华 赵昌龙 于淼 贺春山 赵剑 李志瑶 杨凤双 闻人锴琦 于 2020-06-17 设计创作，主要内容包括：本发明公开了一种双摆式压电风机,包括底座,底座的顶端套设有外密封盖,所述外密封盖通过若干第三螺栓安装在底座上,所述底座的左右两侧设有压电振子,所述压电振子通过若干第二螺栓安装在底座上,所述底座的内腔底壁设有振动机构；本发明的整个装置无共振杆的设计,简化装配难度,提升了输出的流量,水平布置的弹簧片,可以大幅度减少系统的刚度；同时整个装置可以实现在400HZ以下的低频工作,也可以在400HZ以上的高频工作条件下工作,且通过设置多个工作腔,能提供更多的输出流量,能大幅提升装置的工作效率,且整个装置完全不产生磁干扰也不接受磁干扰,比传统的风机更适合于在复杂环境工作,并且不容易损坏,也更容易维护。(The invention discloses a double-pendulum piezoelectric fan which comprises a base, wherein an outer sealing cover is sleeved at the top end of the base and is installed on the base through a plurality of third bolts; the whole device has no design of a resonance rod, simplifies the assembly difficulty, improves the output flow, and can greatly reduce the rigidity of the system by the horizontally arranged spring pieces; meanwhile, the whole device can work at a low frequency below 400HZ and also can work under a high-frequency working condition above 400HZ, more output flow can be provided by arranging the working chambers, the working efficiency of the device can be greatly improved, the whole device does not generate magnetic interference and does not accept the magnetic interference completely, and the device is more suitable for working in a complex environment compared with a traditional fan and is not easy to damage and easier to maintain.)

1. The utility model provides a double pendulum formula piezoelectric fan, includes base (3), its characterized in that, the top cover of base (3) is equipped with outer sealing cover (6), outer sealing cover (6) are installed on base (3) through a plurality of third bolt (7), the left and right sides of base (3) is equipped with piezoelectric vibrator (1), piezoelectric vibrator (1) is installed on base (3) through a plurality of second bolt (5), the inner chamber diapire of base (3) is equipped with vibration mechanism (2).

2. The double pendulum piezoelectric fan according to claim 1, wherein the base (3) is a rectangular parallelepiped structure with an open top end.

3. The double-pendulum piezoelectric fan according to claim 2, wherein the vibration mechanism (2) comprises a cavity (203), a mounting plate (21) is fixedly connected to the bottom end of the cavity (203), an inner sealing cover (201) is sleeved on the top end of the cavity (203), the inner sealing cover (201) is mounted on the cavity (203) through a plurality of fourth bolts (202), a plurality of partition plates (211) are uniformly arranged in the cavity (203), the partition plates (211) divide the inner cavity of the cavity (203) into a plurality of working chambers (212), air pipes (210) are symmetrically connected through the left side and the right side of the working chambers (212), check valves (205) are mounted in the air pipes (210), spring pieces (209) are embedded in the working chambers (212), the spring pieces (209) are connected through the left side end and the right side end of the working chambers (212), and connecting rods (208) are embedded in the spring pieces (209), the front end and the rear end of the connecting rod (208) are symmetrically provided with metal thin film sheets (206) matched with the working cavity (212), and the connecting rod (208) is embedded on the spring piece (209) and the metal thin film sheets (206) through nuts (207).

4. The double pendulum piezoelectric fan of claim 3, wherein the cavity (203) is a rectangular parallelepiped structure with an open top.

5. The double-pendulum piezoelectric fan of claim 4, wherein the cavity (203) and the mounting plate (21) are integrally formed.

6. The double-pendulum piezoelectric fan according to claim 5, wherein the mounting plate (21) is mounted on the bottom wall of the inner cavity of the base (3) by a first bolt (4).

7. The double-pendulum piezoelectric fan of claim 1, wherein the check valve (205) has a valve plate (204) mounted thereon.

8. The double-pendulum piezoelectric fan of claim 3, wherein the spring plate (209) is made of an elastic metal.

Technical Field

The invention relates to the technical field of piezoelectric fans, in particular to a double-pendulum piezoelectric fan.

Background

The air diaphragm pump is a new type of conveying machinery, adopts compressed air as power source, and can pump out and suck up various corrosive liquids, liquids with particles, high viscosity, easy volatilization, flammability and strong toxicity. The diaphragm pump is actually a plunger pump, and the plunger and the pump cylinder are protected by separating the infused liquid from the plunger and the pump cylinder through a film. The left side of the diaphragm, which is in contact with the liquid, is made of corrosion-resistant materials or coated with a layer of corrosion-resistant substances; the right side of the diaphragm is filled with water or oil. Diaphragm pumps, also known as control pumps, are the main type of actuator that is operated by power to vary the fluid flow by receiving a control signal from a regulating control unit. The diaphragm pump is used in the control process to receive the control signal of the regulator or the computer and change the flow rate of the regulated medium to maintain the regulated parameters in the required range, so as to realize the automation of the production process.

At present, the gas diaphragm pump mainly comprises an electromagnetic diaphragm pump and a piezoelectric diaphragm pump which are driven by a motor cam mechanism, wherein the piezoelectric pump has good output effect on pure water working media. The diaphragm type piezoelectric vibrator has limited deformability, has poor gas output effect and cannot work at high frequency, so that the double-pendulum piezoelectric fan provided by the invention can well solve the problems.

Disclosure of Invention

The invention aims to provide a double-pendulum piezoelectric fan to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a double-pendulum piezoelectric fan comprises a base, wherein the base is of a cuboid structure with an open top end, an outer sealing cover is sleeved at the top end of the base, the outer sealing cover is arranged on the base through a plurality of third bolts, the left side and the right side of the base are provided with piezoelectric vibrators, the piezoelectric vibrator is arranged on the base through a plurality of second bolts, the bottom wall of the inner cavity of the base is provided with a vibration mechanism, the piezoelectric vibrator is matched with the base, the vibration mechanism and the sealing cover to form a resonance system, when in work, alternating current is firstly introduced into the piezoelectric vibrator to enable the whole resonance system to be in a resonance state, vibration is directly transmitted to the base through the piezoelectric vibrator, and is transmitted to the vibration mechanism through the base, so that the metal film sheet in the vibration mechanism vibrates and deforms, the inner volume of the cavity of the base is changed, and the operation of the whole device is further realized.

In a further embodiment, vibrations mechanism includes the cavity, the cavity is the open cuboid structure in top, and the bottom fixedly connected with mounting panel of cavity is integrated into one piece preparation between cavity and the mounting panel and forms, the mounting panel is installed on the inner chamber diapire of base through first bolt, the top cover of cavity is equipped with interior sealed lid, interior sealed lid is installed on the cavity through a plurality of fourth bolts. The cavity is uniformly provided with a plurality of clapboards, the clapboards divide the inner cavity of the cavity into a plurality of working cavities, the left side and the right side of each working cavity are symmetrically communicated with air pipes, one-way valves are arranged in the air pipes, valve plates are arranged on the one-way valves, spring pieces are embedded in the working cavities and are connected with the left side end and the right side end of each working cavity in a penetrating way, each spring piece is made of elastic metal, a connecting rod is embedded on each spring piece, the front end and the rear end of each connecting rod are symmetrically provided with metal film pieces matched with the working cavities, each connecting rod is embedded on each spring piece and each metal film piece through nuts, the piezoelectric vibrators are matched with the bases to drive the cavities to vibrate, when the cavities vibrate, the connecting rods are driven to swing back and forth in the cavities, and then the spring pieces are matched to drive, the external air can flow in and out of the inner cavity of the cavity, so that the operation of the whole device is realized; the whole device has no resonance rod, so that the assembly difficulty is simplified, the output flow is improved, and the rigidity of the system can be greatly reduced by the horizontally arranged spring pieces; meanwhile, the whole device can work under the low-frequency working below the HZ and the high-frequency working condition above the HZ, can provide more output flow by arranging a plurality of working chambers, can greatly improve the working efficiency of the device, does not generate magnetic interference and does not accept the magnetic interference completely, is more suitable for working in a complex environment compared with the traditional fan, is not easy to damage and is easier to maintain.

Compared with the prior art, the invention has the beneficial effects that: the whole device has no design of a resonance rod, simplifies the assembly difficulty, improves the output flow, and can greatly reduce the rigidity of the system by the horizontally arranged spring pieces; meanwhile, the whole device can work at a low frequency below 400HZ and also can work under a high-frequency working condition above 400HZ, more output flow can be provided by arranging the working chambers, the working efficiency of the device can be greatly improved, the whole device does not generate magnetic interference and does not accept the magnetic interference completely, and the device is more suitable for working in a complex environment compared with a traditional fan and is not easy to damage and easier to maintain.

Drawings

FIG. 1 is a schematic structural diagram of a perspective view of a double pendulum piezoelectric fan;

FIG. 2 is a schematic structural diagram of a double pendulum piezoelectric fan;

FIG. 3 is a schematic structural diagram of a mass mechanism of a double pendulum piezoelectric fan;

fig. 4 is a schematic structural diagram of a check valve of a double pendulum piezoelectric fan.

In the figure: the vibration damping device comprises a piezoelectric vibrator 1, a vibration mechanism 2, a mounting plate 21, a base 3, a first bolt 4, a second bolt 5, an outer sealing cover 6, a third bolt 7, an inner sealing cover 201, a fourth bolt 202, a cavity 203, a valve plate 204, a one-way valve 205, a metal film 206, a nut 207, a connecting rod 208, a spring plate 209, an air pipe 210, a partition plate 211 and a working cavity 212.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.