CN212878526U - Energy-saving noise-reducing public seat based on piezoelectric effect - Google Patents

Abstract

The utility model discloses an energy-conserving public chair of making an uproar that falls based on piezoelectric effect, including the bench, the equal fixedly connected with baffle in both sides of bench. The utility model discloses by piezoelectric film sensor, the resonator, the LED lamp, the intelligent control module component, the resonator has the collection effect to square dance noise on the seat, the noise has been blocked on the route and has propagated to the residential area, play and inhale the sound and fall the effect of making an uproar, the demand of old colony in the city to square dance has been satisfied when building good residential environment for the resident, the contradiction between the two has properly been solved, created better life for the resident, social is huge, meanwhile, the resonator still has the sound wave amplification function, piezoelectric film sensor can utilize the sound energy to generate electricity, and supply with LED lamp and shine, throw light on to the square, thereby reduce square illumination energy consumption, realize energy saving and emission reduction's effect, this seat is at the noise reduction, have energy saving and emission reduction benefit when creating huge social.

Description

Energy-saving noise-reducing public seat based on piezoelectric effect

Technical Field

The utility model relates to an energy-conserving noise reduction technical field specifically is energy-conserving noise reduction public chair based on piezoelectric effect.

Background

The square dance has become popular since the 90 s in the 20 th century, and now becomes an important sports activity of people in the present stage of China, the audience group is mainly the middle-aged and old people in cities, particularly the middle-aged and old women, has important significance for improving the body quality and the literary quality of residents in cities and towns in China, but also brings social problems of noise disturbing residents and the like, according to relevant investigation, the noise of the square dance can reach more than 90 decibels at most, and seriously exceeds the urban regional environmental noise standard, the daytime noise of residential areas and commercial areas can not exceed 60 decibels, and the nighttime noise can not exceed the 50 decibels.

Energy is an important material basis for survival and development of human society, the total amount of energy resources in China is abundant, but the per-capita resource possession is lower than the average level of the world, in recent years, with the popularization of energy-saving and environment-friendly social concepts, national, government and social functional departments adopt many measures in the aspects of energy saving, emission reduction, establishment of an energy-saving society and the like, but a very large energy-saving space still exists in urban public lighting, according to statistics, the current urban public lighting accounts for 30% of the lighting power consumption in China, is about 439 multiplied by 108kWh, is calculated by the average electricity price of 0.65 yuan/kWh, the annual expenditure reaches 285 billion yuan, is converted into 54 multiplied by 108kg of standard coal, and the emission of carbon dioxide is about 0.14 ton, and becomes a large billion negative of financial and environment-friendly departments in various regions.

The conventional square seat can only be used for a user to sit and lean against, the requirements of the user are difficult to meet, and the piezoelectric effect-based energy-saving noise-reduction public seat is provided by combining the current large development space in the aspect of public lighting energy saving of China aiming at the social hotspot problem that urban square dance noise disturbs people.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a public seat of making an uproar falls in energy-conservation based on piezoelectric effect possesses public seat convenient to use's advantage.

In order to achieve the above object, the utility model provides a following technical scheme: the energy-saving noise-reducing public chair based on the piezoelectric effect comprises a bench, wherein baffles are fixedly connected to two sides of the bench, a back plate is fixedly connected to the back surface of each baffle, the front surface of the back plate is fixedly connected with the back surface of the bench, an LED lamp is fixedly connected between the two baffles, a canopy is fixedly connected to the top of each baffle, the bottom of the canopy is fixedly connected with the top of the back plate, a piezoelectric film sensor is fixedly connected to the bottom of the canopy, a resonator is fixedly connected to the bottom of the piezoelectric film sensor, an intelligent control module, an energy supply and storage module and a storage battery are respectively arranged in the bench, a sound wave collection and amplification module is arranged in the canopy, and a sound-electricity conversion module is arranged in the piezoelectric film sensor;

the output of intelligent control module is collected with the sound wave respectively and is enlarged module, sound electricity conversion module and energy supply energy storage module electricity and be connected, the output and the resonator electricity that the module was enlarged in the sound wave collection are connected, the output and the piezoelectricity film sensor electricity of sound electricity conversion module are connected, the output of energy supply energy storage module is connected with LED lamp and battery electricity respectively.

Preferably, the resonator is a helmholtz resonator.

Preferably, the piezoelectric film sensor is a PVDF piezoelectric film sensor.

Preferably, the rain shed is designed to be bent inwards at the upper part, and a gathering type structure is adopted.

Preferably, the back plate is composed of an inclined straight plate and is ergonomic.

Preferably, the intelligent control module uses a PIC singlechip as a main body and realizes on-off control of the LED lamp through a photosensitive resistance element.

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

the utility model discloses public chair includes piezoelectric film sensor, resonator, LED lamp, intelligent control module, and the resonator has the collection effect to square dance noise on the seat, has blocked the noise on the route and has propagated to the residential area, plays to inhale the sound and fall the effect of making an uproar, has satisfied the demand that the urban middle and old age group danced to the square when building good residential environment for the resident. Meanwhile, the resonator also has a sound wave amplification function, the piezoelectric film sensor can utilize sound energy to generate electricity, and supply the electricity to the LED lamp to illuminate so as to illuminate a square, so that the square illumination energy consumption is reduced, the effect of energy conservation and emission reduction is realized, and the seat has the benefits of energy conservation and emission reduction while reducing noise and creating huge social benefits.

Drawings

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

FIG. 2 is a right side view of the structure of the present invention;

fig. 3 is a schematic diagram of the system of the present invention.

Fig. 4 is an exploded schematic view of the present invention.

In the figure: 1. a bench; 2. a baffle plate; 3. a canopy; 4. a piezoelectric thin film sensor; 5. a resonator; 6. an intelligent control module; 7. a photosensitive element; 8. commercial power; 9. an LED lamp; 10. an energy supply and storage module; 11. a power interface; 12. a back plate.

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. 1-3, the energy-saving and noise-reducing public chair based on the piezoelectric effect comprises a bench 1, wherein two sides of the bench 1 are fixedly connected with baffle plates 2, the back surface of each baffle plate 2 is fixedly connected with a back plate 12, each back plate 12 is composed of an inclined straight plate and accords with the human engineering, the front surface of each back plate 12 is fixedly connected with the back surface of the bench 1, an LED lamp 9 is fixedly connected between the two baffle plates 2, the top of each baffle plate 2 is fixedly connected with a canopy 3, the bottom of each canopy 3 is fixedly connected with the top of the corresponding back plate 12, each canopy 3 is designed to be bent inwards at the upper part and adopts a sound gathering type structure, the bottom of each canopy 3 is fixedly connected with a piezoelectric film sensor 4, the bottom of each piezoelectric film sensor 4 is fixedly connected with a resonator 5, each piezoelectric film sensor 4 adopts a PVDF piezoelectric film sensor as an acoustic-electric conversion module, each PVDF piezoelectric film sensor is a multifunctional sensor for, the whole product is formed by overlapping a piezoelectric film, a conductive material, Mylar and the like, and is a known mature technology. The Helmholtz resonator is adopted as a sound wave collecting and amplifying device for the resonator 5, an intelligent control module 6 and an energy supply and storage module 10 are respectively arranged in the bench 1, the intelligent control module 6 takes a PIC single chip microcomputer as a main body, the single chip microcomputer is respectively electrically connected with a photosensitive element and an LED lamp, the photosensitive element is installed near the LED lamp 9, the single chip microcomputer realizes on-off control of the LED lamp 9 after obtaining illumination conditions, the intelligent control module 6 takes the PIC single chip microcomputer as a main body, on-off control of the LED lamp 9 is realized through the photosensitive element 7, the photosensitive element automatically detects illumination intensity, after the day is dark, a square needs illumination, the single chip microcomputer controls the LED lamp 9 to be turned on after obtaining the illumination conditions, the energy supply and storage module 10 is a single chip microcomputer and supplies power to the LED lamp, meanwhile, redundant electric energy can be stored, the single chip microcomputer controls the LED lamp to, the maximization of energy conservation and emission reduction is achieved. The energy supply and storage module adopts a storage battery.

The intelligent control module 6 is connected with a mains supply 8 and serves as a standby power supply to supply power to the square at night when the power supply energy storage module 10 is insufficient in electric quantity, the resonator 5 serves as a sound wave collecting and amplifying module, and the piezoelectric film sensor 4 serves as a sound-electricity conversion module; the Helmholtz resonator is used for absorbing transmitted noise energy, the rigid plate of the Helmholtz resonator is replaced by the flexible piezoelectric composite vibrating diaphragm, the surface of the composite vibrating diaphragm is plated with a thin silver film or other materials with excellent conductivity, the piezoelectric film sensor is arranged on the rain shed 3, the transmitted noise can be effectively attenuated, when the incident sound wave frequency reaches the resonance frequency of the crystal, the sound wave is resided in the acoustic crystal cavity, the piezoelectric film sensor 4 converts the incident sound wave frequency into electric energy, the voltage output of the piezoelectric film is increased along with the increase of the sound pressure in the cavity, a larger piezoelectric constant is selected, the resonance frequency of the piezoelectric film sensor 4, the frequency of the incident sound wave and the inherent frequency of the acoustic crystal cavity are designed to be the same value, the output electric energy can be improved, the Helmholtz resonator is used as a sound pressure amplifier, the finely processed flexible piezoelectric composite vibrating diaphragm is used as an energy conversion element, a coupling resonance system is generated in the Helmholtz resonator, sound energy is converted into electric energy by the piezoelectric effect, and the generated current is output by a lead connected with the conductive silver film.

Sound wave in the square dance noise is collected through the resonator 5 and is enlarged, and piezoelectric film sensor 4 turns into the energy after for 9 energy supplies of LED lamp through the wire, and the noise in the square is great, and the unnecessary electric energy that piezoelectric film sensor 4 produced can be stored in energy storage module 10, can be used to the illumination of square under the unmanned square dance circumstances, also can switch standby electricity (commercial power 8) power supply when the electric quantity is not enough.

This application still reserves power source on bench 1, for making things convenient for the citizen to charge the power consumption and use.

This application can encircle public seat and install in the edge department around the square, and there is great space at the seat center to supply square dance or personnel's activity to use, and wherein the preferred is installed in one side that is close to the residential block to guarantee noise elimination in the at utmost, build good living environment for the urban resident.

Resonator 5 has the collection effect to square dance noise on the public seat, block the noise on the route and propagate to the residential block, play and inhale the sound and fall the effect of making an uproar, satisfied the demand of city middle and old age group to square dance when building good living environment for the resident, the contradiction between the two has properly been solved, created more beautiful life for the resident, social is huge, meanwhile, resonator 5 still has the sound wave amplification function, piezoelectric film sensor 4 can utilize the sound energy to generate electricity, and supply with LED lamp 9 and shine, throw light on the square, thereby reduce square illumination energy consumption, realize energy saving and emission reduction's effect, this seat is at the noise reduction, have energy saving and emission reduction simultaneously when creating huge social.

This application public chair is particularly useful for installing in spacious and the place of personnel's gathering such as park, the preferred selection is installed in one side that is close to the residential block, in using, the noise that the square dance produced passes through air propagation to this seat department, collect the expansion through resonator 5, arouse 4 vibrations of piezoelectric film sensor, turn into the electric energy with acoustic energy, both absorb and reduced the noise, simultaneously with acoustic energy conversion, produce a quantitative electric energy, be used for the power supply of LED lamp 9, for near region provides the lighting service, the electric energy that produces through the piezoelectric effect supplies power to the fluorescent tube, play the effect for square illumination, the energy consumption of square illumination has been reduced, energy-saving effect is showing.

In addition, transparent windows can be arranged on the baffle 2 and the back plate for a resting person to observe or appreciate the surrounding environment and communicate with surrounding personnel.

The photosensitive element can be an illumination sensor and can convert an illumination intensity value into a voltage value, when the detected illumination intensity is lower than the intensity of the illumination in the evening of clear sky, the singlechip acquires the voltage value and controls the LED lamp to be turned on, and the singlechip can also be used for setting the duration of the LED lamp to be turned on (about 5-6 hours) and turned off at night, so that energy is saved; otherwise, the LED lamp is turned off. The photosensitive element can also be a photosensitive resistor, when no light is emitted, the resistance value of the photosensitive resistor is large, the current in the circuit is small, and at the moment, a circuit for connecting the singlechip and the LED lamp is disconnected; when the photoresistor is illuminated by light in a certain wavelength range, the resistance value of the photoresistor is sharply reduced, the current in the circuit is rapidly increased, and at the moment, the circuit connected with the LED lamp is conducted by the singlechip.

Through calculation, the square dance noise of about 75dB can reach 130dB by the sound amplification of the resonator when reaching the piezoelectric film. The calculation formula of the sound power level is as follows:

in the formula (I), the compound is shown in the specification,

L_w: sound power level (unit: decibel);

w: acoustic power (in watts);

W₀: reference acoustic power, W₀＝10^-12Tile, 1 picowatt.

The piezoelectric film can generate electric energy of about 10W in unit area, is enough for the conventional LED lamp strip with the rated power of 9W in the market, and is reasonable in design.

Example power saving calculation:

taking Tianjin city Riri Huali district as an example, the central square is the main place for middle-aged and elderly people to dance in square, the radius is 20-30m, the middle value is 25m, the area of the central square is 1963.49 square meters, and the perimeter is 157.08 m. According to the square area and the perimeter, 30 energy-saving and noise-reducing seats are reasonably arranged at the peripheral edge of the square. Square dance noise mainly divide into morning noise and night noise, and through the research, the duration that square dance produced the noise is about 4.5h every day, and every seat is installed the piezoelectric film of unit area (1 square meter), and then the power generation amount of every seat every day is 0.045kWh, and the total power generation amount of 30 seats every day is 1.35kWh, and the conversion is about 4860KJ to the energy.

Taking Tianjin city as an example, according to the scenic spot POI data, screening city squares and parks to obtain 135 squares in six regions (Heping region, North river region, east river region, West river region, south opening region and red bridge region) in the city, and under the condition that no large-scale squares exist in the city region, if the energy-saving and noise-reducing seats of the design are installed in the squares in the city region, the annual electricity saving amount is about 66521.25 kilowatts, and the Tianjin peak electricity price is about 1.31 yuan/kWh, so that the government financial electric charge expense is saved by 87142.83 yuan per year.

Economic calculation example

The cost was calculated for a public seat of the present application of a size of 1.8m × 0.8m × 2.0m (length × width × height), as shown in table 1:

TABLE 1 cost accounting

Through calculation, a novel energy-saving noise-reducing seat with the size of 1.8m multiplied by 0.8m multiplied by 2.0m (length multiplied by width multiplied by height) saves the electric quantity by 16.43kWh one year and the cost by 21.52 yuan one year. The recovery period was 15.33 years calculated as the static recovery period. Although the recovery period is long, the method is helpful for relieving social contradiction caused by noise of square dance disturbing residents, and the service life is long, so that the created social benefit is huge.

It should be noted that, the utility model discloses an energy-conserving public chair of making an uproar that falls based on piezoelectric effect, parts such as piezoelectric film sensor, resonator, intelligent control module, LED lamp, energy supply energy storage module used are the parts that general standard spare or technical field personnel know, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.

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.

The utility model discloses the nothing is mentioned the part and is applicable to prior art.

Claims (8)

1. The utility model provides an energy-conserving public seat of making an uproar that falls based on piezoelectric effect, includes bench (1), its characterized in that: the novel bench is characterized in that baffles (2) are fixedly connected to two sides of the bench (1), a back plate (12) is fixedly connected to the back of each baffle (2), the front of each back plate (12) is fixedly connected with the back of the bench (1), an LED lamp (9) is fixedly connected between the two baffles (2), a canopy (3) is fixedly connected to the top of each baffle (2), the bottom of the canopy (3) is fixedly connected with the top of the corresponding back plate (12), a piezoelectric film sensor (4) is fixedly installed at the bottom of the canopy (3), a resonator (5) is fixedly installed at the bottom of the piezoelectric film sensor (4), and an intelligent control module (6) and an energy supply and storage module (10) are respectively arranged inside the bench (1);

the intelligent control module (6) is electrically connected with the LED lamp (9) and the energy supply and storage module (10); the resonator (5) is connected with the LED lamp (9) and the energy supply and storage module (10) through the piezoelectric film sensor.

2. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: and the resonator (5) adopts a Helmholtz resonator.

3. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: the piezoelectric film sensor (4) is a PVDF piezoelectric film sensor.

4. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: the rain shed (3) is in a form that the upper part is bent inwards, and adopts a gathering structure.

5. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: the back plate (12) is composed of an inclined straight plate and accords with human engineering.

6. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: the intelligent control module (6) takes a PIC single chip microcomputer as a main body, and the intelligent control module (6) acquires photosensitive element information and controls the on-off of the LED lamp (9).

7. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: a power interface is reserved on the bench (1).

8. The piezoelectric effect based energy-saving and noise-reducing public seat as claimed in claim 1, wherein: transparent windows are arranged on the baffle and the back plate.

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