WO2021232318A1

WO2021232318A1 - Control component of public device

Info

Publication number: WO2021232318A1
Application number: PCT/CN2020/091402
Authority: WO
Inventors: 焦旭
Original assignee: 焦旭
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-11-25
Also published as: TW202144094A; CN111757760A

Abstract

A control component of a public device, comprising: a public device control component body, the control component body comprising a metal layer (500); a high-frequency vibration device is configured to drive the metal layer (500) to vibrate at high-frequency to generate elastic deformation during high-frequency vibration. Micro-objects or bigger particles present on the metal layer (500) can be effectively removed by the metal layer (500) producing elastic deformation by high-frequency vibration, at least having the effect of removing contaminants.

Description

Control parts of public equipment

Technical field

This application relates to a control component of public equipment.

Background technique

Under the epidemic situation, the control parts of public equipment, such as elevators and other public equipment buttons, handrails or door handles, become a channel for the transmission of infectious diseases. Toxic microorganisms in aerosols or virus carriers fall or come into direct contact with The control parts of public equipment such as elevator buttons are easy to stay on the control parts of public equipment such as elevator buttons. Toxic microorganisms staying on the control parts of public equipment such as elevator buttons may cause contact with other control parts of the public equipment such as elevator buttons. Infecting or carrying the virus after human contact becomes a source of re-transmission.

At present, the control parts of public equipment are usually disinfected by manual spraying, wiping, etc. This method cannot guarantee the timeliness of the disinfection, and it is also easy to damage the electronic devices due to the disinfection water.

Summary of the invention

This application proposes a control component of public equipment, at least some of the embodiments can effectively reduce or eliminate viruses or pollutants on the control component of public equipment.

Exemplarily, the control component of the public equipment includes: a control component body including an outer surface and an inner surface, the outer surface includes a metal layer for the user to contact to operate the door;

The high-frequency vibration device is located on the inner surface side of the control component body, and is configured to drive the high-frequency vibration of the metal layer to elastically deform when high-frequency vibration;

The contact sensing circuit is used to sense human contact with the main body of the control component and trigger the high-frequency vibration of the high-frequency vibration device;

A power supply circuit is connected to the high-frequency vibration device and the contact sensing circuit, and is used to provide electrical energy for the high-frequency vibration device and the contact sensing circuit.

Exemplarily, it further includes a non-elastic component located between the inner surface of the control component body and the high-frequency vibration device, the non-elastic component has a first surface and a second surface, and the non-elastic component The first surface of the control component body is fixedly connected to the inner surface of the control component body, and the second surface of the non-elastic component is fixedly connected to the high-frequency vibration device.

Exemplarily, the control component of the public equipment is an elevator button; the metal layer is the button plate of the elevator button; the high-frequency vibration device is arranged on the back of the button plate of the metal layer and the The button word piece is fixedly connected; or

The operating component of the public equipment is a door handle, the metal layer is a metal layer on the outer surface of the door handle; the high-frequency vibration device is arranged on the inner surface of the metal layer of the door handle and the The metal layer is fixedly connected.

Exemplarily, the control component of the public equipment is an elevator button; the metal layer is a button word piece of the elevator button, and the outer surface of the button word piece is for the user to touch to operate the door; The non-elastic component is a cone-shaped resonant disc. The cone-shaped resonant disc has a first surface and a second surface that are opposed to each other. The first surface is fixed to the back of the button plate; the second surface is fixed to the On the high-frequency vibration device; or

The control component of the public equipment is a door handle, the metal layer is a metal layer on the outer surface of the door handle; The second surface, the first surface is fixed to the inner surface of the metal layer of the door handle, and the second surface is fixed to the high-frequency vibration device.

Exemplarily, the high-frequency vibration device is an electrostrictive piezoelectric wafer or a magnetostrictive piezoelectric wafer.

Exemplarily, the first surface of the conical resonance disk is pasted on the metal layer, and the second surface of the conical resonance disk is pasted on the piezoelectric wafer.

Exemplarily, the piezoelectric wafer has a first surface and a second surface that are opposed to each other;

The control part of the common device further includes an electrode connected to the piezoelectric wafer away from the first surface of the conical resonance disk, one end of the electrode is connected to the lead of the electrode, and the other of the lead One end is connected to a microcontroller, and the microcontroller is configured to respond to the contact sensing signal of the contact sensing circuit and output an electrical signal to the high frequency vibration device through the electrode to trigger the high frequency vibration device. Frequency vibration.

Exemplarily, the control component of the public device further includes at least two leads connected to the piezoelectric chip; the other end of the at least two leads is connected to a microcontroller, so that the microcontroller drives the When the piezoelectric wafer vibrates at a high frequency, the metal sheet is driven to vibrate at a high frequency and undergo elastic deformation.

Exemplarily, the tapered resonance disk is pasted on the back of the button word sheet, and a piezoelectric wafer is arranged on the tapered resonance disk;

The button word piece, the conical resonance disc, and the piezoelectric wafer are stacked on each other, and the center of gravity of the button word piece, the center of gravity of the cone resonance disc, and the center of gravity of the piezoelectric wafer are at the same position The orthographic projections on the buttons described above overlap.

Exemplarily, the weight of the piezoelectric wafer is greater than the weight of the button word piece.

Exemplarily, the inner surface of the metal layer on the outer surface of the body of the door handle is sequentially provided with a conical resonant disk and the piezoelectric wafer, and the piezoelectric wafer and the conical resonant disk are closely adhered and connected to each other. , The conical resonance disk is closely adhered and connected to the inner surface of the metal layer.

Exemplarily, a sterilizer is also included, and the sterilizer starts to spray the disinfectant under the control of the microcontroller, so that the disinfectant is sprayed out in the environment where the control component of the public device is located.

Exemplarily, the contact sensing circuit includes a pressure sensor for sensing a user's contact action and a contact sensing signal processing circuit for processing a signal output by the pressure sensor.

Exemplarily, the high-frequency vibration device also serves as the pressure sensor.

The technical solution disclosed in the embodiments of the present application, the control part of the public equipment, includes: the control part body of the public equipment, the control part body includes a high-frequency vibration device to drive the outer surface of the control part body of the public equipment to elastically deform, so as to achieve At least it has the effect of removing dirt or disinfecting the outer surface of the operating parts of the public equipment.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some of the present application. Embodiments, for those of ordinary skill in the art, without creative labor, other drawings can be obtained based on these drawings.

Figure 1 is a system block diagram of an elevator system according to one or more embodiments of the present application;

Figure 2 is a schematic cross-sectional view of an elevator button provided by one or more embodiments of the application;

Figure 3 is a schematic cross-sectional view of an elevator button provided by one or more embodiments of the application;

Figure 4 is a schematic cross-sectional view of an elevator button provided by one or more embodiments of the application;

Fig. 5 is a schematic structural diagram of a door handle provided by one or more embodiments of the application.

Detailed ways

In order to better understand the purpose, effects and solutions of the invention of this application, descriptions will be made in conjunction with the accompanying drawings and the following embodiments. The following will clearly and completely describe the technical solutions of the present application, the objectives and effects of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are used to understand the objectives of the present application. Based on the examples in this application, all other implementations obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

This application provides a control component of public equipment. The implementation of the public equipment is, for example, doors in different application scenarios or facilities such as cars and elevators. The doors are, for example, elevator doors, car doors, entrance and exit doors of residential buildings, etc. Correspondingly, the operating components of the public equipment are the exterior of public equipment such as elevator doors and/or elevator buttons in the box, door handles of car doors, door handles of residents' entrance and exit doors, etc.

The control part of the public equipment includes: the control part body of the public equipment, the control part body includes an outer surface and an inner surface, and the outer surface is used for the user to contact to operate the door, such as pressing, touching, and so on. The outer surface of the control component body includes a metal layer; exemplary metal layer is a film layer made of metal skin, with a thickness of about 1 mm or less, for example, on the order of micrometers, and the material may be, for example, a metal material such as stainless steel. In addition, because of its low cost and easy production of stainless steel into a smooth surface, when combined with the vibration component of the present invention for high-frequency vibration, the effect of removing dirt is better. The dirt includes, for example, bacteria, viruses, dust and the like.

The control component of the public equipment further includes a high frequency vibration device, which is located on the inner surface side of the control component body, and is configured to drive the high frequency vibration of the metal layer to elastically deform when the high frequency vibration occurs.

In some embodiments, further, on the basis of the solution of the foregoing embodiment, a contact sensing circuit is further included to sense the user's contact with the main body of the control component and trigger the high-frequency vibration of the high-frequency vibration device. Of course, the touch sensing circuit is an optional function of the above-mentioned embodiment. In some embodiments, the high-frequency vibration device can be made to vibrate without user contact. For example, in an elevator, the master controller can activate the high-frequency vibration device to decontaminate when it senses that the user enters the elevator car, so as to prevent the user from being contaminated by dirt when the user actually touches the control device.

In some embodiments, in any one of the above embodiments, a power supply circuit is further included. The power supply circuit is connected to the high-frequency vibration device and the contact sensing circuit, and is configured to provide the power supply for the high-frequency vibration device and the contact sensing circuit. Provide electricity.

In some embodiments, the high-frequency vibration device is fixedly connected to the metal layer, and is configured to drive the metal layer to perform high-frequency vibration and elastic deformation through high-frequency vibration. When there are dirt, small objects such as bacteria, viruses, or larger particles such as dust on the metal layer, the adhesion of the dirt on the metal layer that undergoes elastic deformation due to high-frequency vibration decreases. Fall off, so as to achieve the effect of removing dirt.

In other embodiments, the high-frequency vibration device and the metal layer are connected through a resonator, for example, the resonator is a conical disc shape (hereinafter referred to as a conical resonance disc) or other types/shapes of resonators. For example, the control part of the public equipment further includes a cone-shaped resonance disc located between the inner surface of the control part body and the high-frequency vibration device, the cone-shaped resonance disc has a first surface and a second surface, The first surface of the cone-shaped resonance disk is fixedly connected with the inner surface of the control component body, and the second surface of the cone-shaped resonance disk is fixedly connected with the high-frequency vibration device. The cone-shaped resonance disk may serve to concentrate the vibration energy of the high-frequency vibration device and transfer it to the metal layer. Due to the energy accumulation and transmission of the conical resonance disk, a better vibration effect can be produced with a smaller energy, and thus a better effect of removing dirt can be achieved.

In any one of the foregoing multiple embodiments, the vibration frequency (or resonance frequency) of the high-frequency vibration device is on the order of kHz and above, such as tens of kHz, hundreds of kHz, and the like.

When there are tiny objects or larger particles on the metal layer, the dirt can be effectively driven by high-frequency vibration and fall off the elastically deformed metal layer, thereby producing the effect of being removed. Among them, fine particles can fall off under high-frequency vibration in the contact part, and larger particles such as liquids can break off their internal structure or stress under high-frequency vibration in the contact part. Therefore, according to the common embodiments of the present application The operating parts of the equipment can play a role in removing dirt or viruses to a certain extent.

In some embodiments, as shown in Figures 1 and 3, the control component of the public equipment is the elevator button 1; the metal layer is the button plate 111 of the elevator button; the high-frequency vibration device (such as piezoelectric The wafer 12) is arranged on the back of the button plate 111 of the metal layer, and is fixedly connected to the high-frequency vibration device. Exemplarily, the piezoelectric wafer 12 is pasted on the back of the metal layer.

In other embodiments, as shown in FIG. 4, on the basis of the embodiments of FIGS. 1 and 3, a cone-shaped resonance disk 14 is provided between the button word piece 111 and the piezoelectric wafer 12; The body of the resonant disc 14 is a resonant disc. The resonant disc has two opposite surfaces, one of which has a conical (trumpet-shaped) protrusion in the center, so it is called a conical resonant disc. As shown in Figure 4, one side of the cone-shaped resonant disk 14 with tapered protrusions faces the piezoelectric chip 12 and is fixedly connected to the piezoelectric chip 12, and the other side faces the button plate 111 and is connected to the button plate 111. The inner surface is fixedly connected.

Exemplarily, the two surfaces of the conical resonance disk 14 are respectively pasted on the piezoelectric wafer 12 and the button word piece 111.

In some or each of the foregoing embodiments, for example, the high-frequency vibration device is an electrostrictive piezoelectric wafer 12 or a magnetostrictive piezoelectric wafer 12.

In some embodiments, as shown in FIG. 5, the control component of the public equipment is a door handle, and the metal layer is a metal layer 500 on the outer surface of the door handle; the high-frequency vibration device is arranged on the door The inner surface of the metal layer of the handle is fixedly connected to the metal layer. Exemplarily, the high-frequency vibration device is an electrostrictive piezoelectric wafer 12 or a magnetostrictive piezoelectric wafer 12. Exemplarily, the piezoelectric wafer 12 is pasted on the back of the metal layer.

In other embodiments, the operating component of the public device is a door handle, and the metal layer is a metal layer 500 on the outer surface of the door handle body; it also includes a conical resonance disk. The body of the conical resonant disc is a resonant disc. The resonant disc has two opposite surfaces, one of which has a conical (trumpet-shaped) protrusion in the center, so it is called a conical resonant disc. One surface of the conical resonance disk is arranged on the high-frequency vibration device, and the other surface is arranged on the inner surface of the metal layer 500. Exemplarily, the high-frequency vibration device is an electrostrictive piezoelectric wafer 12 or a magnetostrictive piezoelectric wafer 12. Exemplarily, the piezoelectric wafer 12 is pasted on the side of the conical resonance disk with the conical protrusions.

In at least one embodiment, the first surface of the conical resonance disk is pasted on the metal layer, for example, the inner side of the button word sheet, or the inner side of the metal layer of the door handle. The second surface of the conical resonance disk is pasted on the piezoelectric wafer.

In some embodiments, the piezoelectric wafer 12 in any of the foregoing embodiments may be a cylinder with a diameter in the range of a few millimeters or tens of millimeters. For example, the piezoelectric wafer 12 has a diameter in the range of 5-15mm. The piezoelectric wafer 12 in any of the foregoing embodiments may be a cylinder, and the thickness of the piezoelectric wafer 12 ranges from a few millimeters or ten millimeters, for example, 1-5 mm.

The piezoelectric wafer 12 may be piezoelectric ceramics, or may be called an ultrasonic transducer, and the ultrasonic transducer may be electrostrictive or magnetostrictive.

In one or more embodiments, for example, as shown in FIG. 5, the piezoelectric wafer 12 is connected to the microcontroller 2, and the microcontroller 2 drives the piezoelectric wafer 12 to vibrate. Exemplarily, the piezoelectric wafer 12 has two opposite main surfaces and one side surface, and the control part of the common device further includes a main surface connected to the piezoelectric wafer 12 and away from the metal layer. One end of the upper electrode 18 is connected to the lead 19 of the electrode 18, and the other end of the lead 19 is connected to the microcontroller 2 which is configured to drive the piezoelectric wafer 12 to vibrate at high frequency.

In some embodiments, as shown in FIG. 4, a contact sensing circuit 15 is included to sense the user's contact with the control component body and trigger the high-frequency vibration of the high-frequency vibration device (piezoelectric wafer 12);

The contact sensing circuit 15 is used to sense the user's contact with the control component body, and trigger the high frequency vibration device (piezoelectric wafer 12) to vibrate at high frequency through the microcontroller 2. The microcontroller 2 is configured to respond to the contact sensing signal of the contact sensing circuit 15 and output an electrical signal to the high-frequency vibration device (piezoelectric wafer 12) through the electrode 18 to trigger the high-frequency vibration The device (piezoelectric wafer 12) vibrates at high frequency.

Exemplarily, as shown in FIG. 3, the electrode 18 is an electrode sheet, which is arranged on a main surface of the piezoelectric wafer 12 away from the metal layer. It can be connected to the microcontroller 2 via a lead 19.

Of course, as an example, as shown in FIG. 3, the piezoelectric chip 12 and the microcontroller 2 may also be directly connected through the lead 19. Exemplarily, the control component of the public device further includes a plurality of leads 19 connected to the piezoelectric chip 12 at one end and connected to the microcontroller 2 at the other end, so that the microcontroller 2 drives the piezoelectric chip 12 When the wafer 12 vibrates at a high frequency, the metal sheet vibrates at a high frequency and undergoes elastic deformation. The plurality of leads may be two or more.

In some embodiments, as shown in FIG. 3, the button character sheet 111 is pasted with one piezoelectric wafer 12 on the back; the button character sheet 111 and the piezoelectric wafer 12 are laminated. Preferably, the center of gravity of the button character piece 111 overlaps with the orthographic projection of the center of gravity of the piezoelectric chip 12 on the button character piece 111. Exemplarily, the piezoelectric wafer 12 is circular, the button word piece 111 is square, rectangular or circular, and the geometric center of the piezoelectric wafer 12 and the geometric center of the elevator button are on the vertical main surface. The orthographic projections overlap in the direction.

In other embodiments, as shown in FIG. 4, the back of the button word piece 111 is connected to the piezoelectric wafer 12 through a cone-shaped resonance disk 14. The button word piece 111, the cone resonance disc 14, and the piezoelectric wafer 12 are stacked on each other, and preferably, the center of gravity of the button word piece 111, the center of gravity of the cone resonance disc 14, and The orthographic projection of the center of gravity of the piezoelectric wafer 12 on the button word piece 111 overlaps.

Exemplarily, the piezoelectric chip 12 is pasted on the back of the button word sheet 111 and pasted by glue or glue, which is a glue with little or no elasticity after solidification.

Exemplarily, the tapered resonance disk is attached to the back surface of the button word piece 111 and the piezoelectric chip through glue or glue with little or no elasticity after solidification.

Exemplarily, in the foregoing embodiment with a cone-shaped resonance disk or an embodiment without a cone-shaped resonance disk, the weight of the piezoelectric chip 12 is greater than the weight of the button word piece 111. When the driving frequency is constant, the vibration acceleration of the piezoelectric wafer 12 does not change. The greater the weight of the piezoelectric wafer 12, the greater the driving force on the metal sheet caused by the vibration on the piezoelectric wafer 12. The weight of the piezoelectric chip 12 is greater than the weight of the button word piece 111, which can ensure that a greater driving force is provided to the metal sheet for vibration decontamination and disinfection.

Exemplarily, the inner surface of the metal layer on the outer surface of the door handle is provided with one or more piezoelectric wafers 12, and the piezoelectric wafer 12 is closely attached to the inner surface of the metal layer. Connection, without conical resonance disk.

Exemplarily, the inner surface of the metal layer on the outer surface of the door handle is sequentially provided with a cone-shaped resonant disk 14, the piezoelectric wafer 12, and the piezoelectric wafer 12 is close to the cone-shaped resonant disk 14. Adhering and adhering connection, the conical resonance disk 14 is closely adhering and adhering to the inner surface of the metal layer.

Exemplarily, in the embodiment described in any one of FIGS. 1 to 5, a sterilizer 4 is further included. The sterilizer 4 starts spraying disinfectant under the control of the microcontroller, so that the control part of the public device Disinfectant is sprayed out of the environment. The sterilizer can be signal connected with the microcontroller of the elevator button in a wireless or wired manner. The sterilizer can be automatically turned on or off under the control of a microcontroller.

In some embodiments, the embodiments of the application provide an elevator system and an elevator button in the elevator system. An ultrasonic transducer is arranged on the elevator button, and when disinfection is needed, the ultrasonic transducer is controlled to vibrate to drive the elevator button to vibrate. The virus and other harmful microorganisms on the elevator buttons are vibrated until they are separated from the elevator buttons to eliminate the viruses and other harmful microorganisms on the elevator buttons. Further, in order to prevent harmful microorganisms such as viruses from leaving the elevator button and still living in the elevator box and endangering others, the sterilizer can also be controlled to automatically turn on the disinfection function to completely eliminate the virus that leaves the button.

Figure 1 shows a simple schematic diagram of an elevator system, including: elevator button 1 (hereinafter referred to as button), microcontroller 2, and elevator box 3.

The positional relationship between the microcontroller 2 and the elevator button 1 in the figure only represents the connection relationship between the two, and does not represent the actual positional relationship between the two in actual use. In some embodiments, the microcontroller is provided on the elevator buttons, and in other embodiments, the microcontroller is independent of the elevator buttons, such as on the outer wall of the elevator box 3 or the elevator system. The center console (the side that is not common to users).

Generally, the button 1 is arranged on the inner side wall of the elevator car 3 (the side visible by the user in the elevator car).

The structure of the elevator button 1 of some embodiments will be described below. Figure 2 shows a schematic diagram of the specific structure of the elevator button 1. Buttons for elevators, including:

As shown in FIG. 2, the button body 11, in some examples, the button body 11 is a part of a button, such as a button word piece 111. In other examples, the button body 11 is the entire button structure including the button word piece and other components that can realize the button function. For example, all the functional components shown in FIG. 2 constitute the button body.

As shown in FIG. 2, on the basis of the above-mentioned embodiment, a piezoelectric wafer 12 (such as an ultrasonic transducer) is disposed on the button body 11, and is configured to vibrate in a vibrating state to drive the button body 11 to vibrate. . The piezoelectric chip 12 may be an ultrasonic transducer chip, such as a piezoelectric ceramic transducer chip, or a piezoelectric chip, and the button body 11 is a button word chip 111.

The ultrasonic transducer microcontroller 13 (hereinafter referred to as the microcontroller) is arranged on the button body 11 and connected to the piezoelectric wafer 12, and is configured to drive the piezoelectric wafer 12 to vibrate in the vibration state. The connection between the microcontroller and the transducer may be a wireless connection or a line connection, and the connection mode is not shown in the drawings.

The function of the microcontroller is to generate a regular electric pulse with a certain power, a certain pulse width and a certain frequency to excite the transmitting transducer in the ultrasonic transducer, and the transmitting transducer is converted into ultrasonic waves for outward emission.

As shown in FIG. 2, in some embodiments, the button body 11 includes a button word piece 111, which is a sheet-like regular figure, such as a square or a circle, and has two opposite faces (facing the elevator box). Inside the user’s front and opposite back). The piezoelectric chip 12 is arranged on the back (also called back) of the button word piece 111 and is fixedly connected to the button word piece 111.

The button word piece is a sheet-like pressing member with letters, numbers or other logos. For example, the user presses the button word piece by hand when taking the elevator in the elevator box to select the destination floor of the elevator, and the keys for opening and closing the door. The button word piece can be made of metal or alloy material, and can also be made of plastic and other materials.

In some embodiments, the button word piece is a stainless steel layer, and the ultrasonic transducer is fixedly connected to the back of the button word piece by bonding.

In some embodiments, the ultrasonic transducer has a circular diameter of about 1 cm or less, and a thickness of about 2 mm. It can be fixedly connected with the button word piece by bonding.

When the above-mentioned ultrasonic transducer is arranged on the back of the button plate, when it is driven by the microcontroller of the ultrasonic transducer plate, it can ultrasonically vibrate and drive the button plate to vibrate at the same frequency, which is beneficial to the escape of viruses or other microorganisms on the button plate. The button.

In some embodiments, as shown in FIG. 2, the button body 11 includes a button word sheet 111, a button word sheet base 112, and one or more springs 113;

The button word piece 111 is arranged on the button word piece base 112 and is connected to the button word piece base 112 through the spring 113, so that the button word piece 111 can be elastic when pressed.

The spring is only an embodiment for realizing the elastic function, and is not limited to other ways. For example, instead of providing the spring, an elastic plastic layer is provided. The elastic plastic layer is provided on the back of the button plate 111, and the transducer is provided on the back of the elastic plastic layer. The energy device is arranged between the elastic plastic layer and the button word piece, and is fixedly connected with the elastic plastic layer and the button word piece.

In the above example with a spring, as shown in FIG. 2, the spring 113 is located between the button word piece base 112 and the button word piece 111 and is fixedly connected to the button word piece base 112 and the button word piece 111 When the button word piece 111 is pressed, the spring can be compressed toward the button word piece base 112 relative to the button word piece 111. The spring 113 is specifically arranged in an area near the side edge of the button word piece 111 or the button word piece base 112, and the middle area of the button word piece 111 or the button word piece base 112 may be provided with an ultrasonic transducer. That is to say, the ultrasonic transducer is located in the space between the button word sheet base and the button word sheet, is arranged in the area near the center of the button word sheet back, and is fixed to the button word sheet connect.

In any of the above examples, optionally, the button word piece is a stainless steel layer, and the ultrasonic transducer is fixedly connected to the back of the button word piece by bonding.

In some embodiments, the elevator button not only includes the components of the elevator button introduced in any one of the embodiments described above, but also includes a pressure sensor for sensing the user's contact action and a pressure sensor for detecting the pressure sensor. A contact-sensing signal processing circuit for signal processing, the pressure sensor is arranged on the front of the button plate 111 or on the side of the piezoelectric chip 12 (ultrasonic transducer) away from the button plate 111 The pressure sensor can also be arranged on the spring, and when the spring has elastic pressure, it touches the pressure sensor to detect the pressure value. The spring is located under the electrode sheet and should have a high elastic modulus. More preferably, the high-frequency vibration device, that is, the piezoelectric wafer, also serves as the pressure sensor. The contact sensing signal processing circuit may include, for example, an amplifying circuit and a signal conditioning circuit electrically connected to the piezoelectric chip. The pressure signal output by the pressure sensor is sent to the microcontroller through the amplifying circuit and the signal conditioning circuit.

It also includes a logo provided on the button word sheet, or a logo is provided on the button word sheet, and the logo is a light-transmitting structure formed of a light-transmitting material; in some embodiments, the light-transmitting structure is provided on the button word Inside the slit where the front and back of the film pass through. In some embodiments, it further includes a light-emitting diode arranged on the back of the button word sheet.

The microcontroller can be arranged on the button body, or can be arranged in another position independent of the button.

In some embodiments, the microcontroller 2 is arranged on the button body 11; the microcontroller 3 is connected to the microcontroller 13 and is configured to receive instructions from the microcontroller 2 The command when the working state of the piezoelectric wafer 12 (ultrasonic transducer) is in the vibration state drives the ultrasonic transducer to vibrate. In other words, the microcontroller 3 is connected to the microcontroller 13, and the microcontroller 13 controls the microcontroller to turn on or off. When the microcontroller is turned on, the microcontroller generates a certain power , A regular electric pulse with a certain pulse width and a certain frequency in order to excite the transmitting transducer in the ultrasonic transducer, and the transmitting transducer is converted into ultrasonic waves for outward emission.

In some embodiments, as shown in FIG. 1, the elevator system further includes a sterilizer 4, and the sterilizer can be set in the elevator car 3, specifically, a spray container can be set with a disinfectant inside.

The disinfector 4 is provided with a disinfectant outlet switch driver and a disinfectant outlet switch (such as a push switch), and the disinfectant outlet switch driver is configured to drive the The opening of the disinfectant outlet switch (such as applying pressure to a push switch) causes the disinfectant fluid to be sprayed into the elevator box.

For example, the sterilizer has a push switch, and the disinfectant outlet switch driver is a push switch driver. The driver may be a link connected with the push switch and a microcontroller. The microcontroller controls the The micro-controller drives the connecting rod to move, so that the connecting rod drives the push switch to be pressed, thereby realizing automatic activation of the sterilizer for disinfection.

The microcontroller 2 is configured to determine whether the current environment satisfies the disinfection conditions, and if so, it sends the start-up instruction to the transducer microcontroller, and at the same time sends the start-up instruction to the disinfectant outlet switch driver At this time, the opening of the disinfection liquid outlet switch is driven (for example, pressure is applied to a push switch), so that the disinfection liquid is sprayed into the elevator box.

In the judging whether the current environment meets the disinfection condition, one implementation is to judge whether the elevator car of the elevator system is in an unmanned state, and if so, it is determined that the current environment meets the disinfection condition. Specifically, the long-term disinfection mode can be activated.

The elevator car in the system can be equipped with a camera and/or an infrared sensor, which can monitor whether there are people in the elevator. The images in the elevator car collected by the camera can be judged whether there are people through image processing, and the infrared sensor can be transmitted by collecting infrared sensors. The blocking of infrared rays determines whether there are people in the elevator box.

According to the judgment whether the current environment meets the disinfection conditions, another implementation manner is: as described above, the elevator system further includes a pressure sensor arranged on the elevator button, and the pressure sensor is arranged on the button The front of the word piece or the side of the ultrasonic transducer that is away from the button word piece;

When the microcontroller determines that the current environment meets the disinfection condition when receiving the pressed signal provided by the pressure sensor, it sends the instruction to the transducer microcontroller and controls the light-emitting diode to emit light. . That is to say, only the user presses the elevator button to start the disinfection process, start the vibration of the transducer and the disinfection of the disinfector, or start the disinfection of the transducer or the disinfector. The disinfection time can be preset according to the microcontroller, such as disinfection for 1-2 seconds to stop disinfection, that is, stop the transducer microcontroller and/or stop the work of the disinfector switch microcontroller.

According to the judgment of whether the current environment meets the disinfection condition, another implementation manner is: disinfection can be performed at a set time interval, for example, disinfection is performed every 5 minutes. The microcontroller judges whether there is a 5 minute interval between the current time and the last disinfection time, and if so, it determines that the disinfection conditions are met.

In some embodiments, the judgment of the third disinfection condition described above can be combined with the first disinfection condition, and disinfection is performed every 5 minutes when there is no one in the elevator.

The embodiment of the present application also provides a method for controlling a microcontroller, which includes the following steps:

S1: When the microcontroller determines that the button is pressed, it sends an instruction to start work to the microcontroller of the ultrasonic transducer described in this application, and/or sends an instruction to start work to the switch driver of the sterilizer described in this application instruction.

S2: The microcontroller counts the opening time of the transducer and/or sterilizer, and if it reaches the preset time (for example, lasts 2 seconds), it sends an instruction to stop working to the transducer and/or sterilizer , The transducer stops vibrating, and the sterilizer stops spraying disinfectant.

The embodiment of the present application also provides another method for controlling a microcontroller, which includes the following steps:

S1: The microcontroller receives the monitoring information that there is no user in the elevator fed back by the image processing equipment or the infrared sensor, and sends an instruction to start work to the microcontroller of the ultrasonic transducer described in this application, and/or, to the office of this application The switch driver of the sterilizer sends an instruction to start the work.

S2: The microcontroller counts the opening time of the transducer and/or sterilizer, and if the preset time (such as 5 minutes) is reached, it sends an instruction to stop working to the transducer and/or sterilizer, Then the transducer stops vibrating, and the sterilizer stops spraying the disinfectant. The microcontroller continues to count, and if the sterilization is stopped for a preset time (for example, 10 minutes), it sends an instruction to start the operation to the transducer and/or the sterilizer.

The elevator buttons and elevator system provided by this application are described in detail above. Specific examples are used in this article to explain the principles and implementation of the application. The description of the above embodiments is only used to help understand the methods and methods of the application. Core idea; At the same time, for ordinary technicians in the field, according to the idea of this application, various changes and improvements can be made, and these changes and improvements should be included in the scope of protection defined by the claims of this application.

Claims

A control component of public equipment, which is characterized in that it includes:

The control component body includes an outer surface and an inner surface, and the outer surface includes a metal layer for the user to contact to operate the public device;

The high-frequency vibration device is located on the inner surface side of the control component body, and is configured to drive the high-frequency vibration of the metal layer to elastically deform when high-frequency vibration;

The contact sensing circuit is used to sense the user's contact with the main body of the control component and trigger the high-frequency vibration of the high-frequency vibration device;

A power supply circuit is connected to the high-frequency vibration device and the contact sensing circuit, and is used to provide electrical energy for the high-frequency vibration device and the contact sensing circuit.
The control component of public equipment according to claim 1, further comprising a cone-shaped resonance disk located between the inner surface of the control component body and the high-frequency vibration device, the cone-shaped resonance The disc has a first surface and a second surface, the first surface of the cone-shaped resonance disc is fixedly connected to the inner surface of the control member body, and the second surface of the cone-shaped resonance disc is fixed to the high-frequency vibration device connect.
The control component of public equipment according to claim 1, wherein the control component of the public equipment is an elevator button; the metal layer is a button piece of the elevator button; and the high-frequency vibration device is arranged in The back of the button word piece of the metal layer is fixedly connected to the button word piece; or

The operating component of the public equipment is a door handle, the metal layer is a metal layer on the outer surface of the door handle; the high-frequency vibration device is arranged on the inner surface of the metal layer of the door handle and the The metal layer is fixedly connected.
The control component of public equipment according to claim 2, wherein the control component of the public equipment is an elevator button; the metal layer is a button piece of the elevator button, and the outer surface of the button piece For the user to contact to operate the public equipment; the cone-shaped resonance disk has a first surface and a second surface that are opposed to each other, and the first surface is fixed to the back of the button plate; the second surface Fixed on the high-frequency vibration device; or

The control component of the public equipment is a door handle, and the metal layer is a metal layer on the outer surface of the body of the door handle; the conical resonance disk has a first surface and a second surface opposite to each other, and the first surface Fixed to the inner surface of the metal layer of the door handle, and the second surface is fixed to the high-frequency vibration device.
The control component for public equipment according to claim 3 or 4, wherein the high-frequency vibration device is an electrostrictive piezoelectric wafer or a magnetostrictive piezoelectric wafer.
The control component of public equipment according to claim 5, wherein the first surface of the conical resonance disk is pasted on the metal layer, and the second surface of the conical resonance disk is pasted on the pressure Electric wafer.
The control component of public equipment according to claim 5, characterized in that:

The piezoelectric wafer has a first surface and a second surface that are arranged opposite to each other;

The control part of the common device further includes an electrode connected to the piezoelectric wafer away from the first surface of the conical resonance disk, one end of the electrode is connected to the lead of the electrode, and the other of the lead One end is connected to a microcontroller, and the microcontroller is configured to respond to the contact sensing signal of the contact sensing circuit and output an electrical signal to the high frequency vibration device through the electrode to trigger the high frequency vibration device. Frequency vibration.
The control component of public equipment according to claim 5, wherein the control component of the public equipment further comprises at least two leads connected to the piezoelectric chip; the other end of the at least two leads is connected to the micro The controller is connected, so that when the micro-controller drives the piezoelectric wafer to vibrate at a high frequency, it drives the metal sheet to vibrate at a high frequency and undergo elastic deformation.
The control component of public equipment according to claim 4, wherein the tapered resonance disk is pasted on the back of the button word sheet, and a piezoelectric wafer is provided on the tapered resonance disk;

The button word piece, the conical resonance disc, and the piezoelectric wafer are stacked on each other, and the center of gravity of the button word piece, the center of gravity of the cone resonance disc, and the center of gravity of the piezoelectric wafer are at the same position The orthographic projections on the buttons described above overlap.
The control component of public equipment according to claim 9, wherein the weight of the piezoelectric chip is greater than the weight of the button word piece.
The control component of public equipment according to claim 5, wherein the inner surface of the metal layer on the outer surface of the body of the door handle is sequentially provided with a conical resonance disk, the piezoelectric wafer, and the piezoelectric The wafer and the conical resonance disk are closely adhered and connected, and the conical resonance disk and the inner surface of the metal layer are closely adhered and connected.
The control component of public equipment according to claim 3 or 4, further comprising a sterilizer, which starts to spray disinfectant under the control of the microcontroller, so that the environment where the control component of the public equipment is located Disinfectant is sprayed out.
The control component of public equipment according to claim 1, wherein the contact sensing circuit includes a pressure sensor for sensing a user's contact action and a contact sensing signal processing for processing a signal output by the pressure sensor Circuit.
The control component of public equipment according to claim 13, wherein the high-frequency vibration device also serves as the pressure sensor.