1962 results about "Electrochromism" patented technology

Embodiments of this application disclose a camera module and an electronic device. The camera module includes a color filter layer. The color filter layer includes an electrochromic region and a plurality of color filter regions. Each color filter region is used for transmitting a spectrum of a band corresponding to the color filter region. The electrochromic region has a fully light-transmissive state and a filter state. In the fully light-transmissive state, the electrochromic region is used for transmitting spectra of a plurality of different bands. In the filter state, the electrochromic region is used for transmitting spectra of a same band.

An electrochromic device includes: a first insulating substrate; a first conducting layer disposed over the first insulating substrate; an electrochromic layer disposed over the first conducting layer, wherein the electrochromic layer comprises an electrochromic polymer having a polymer backbone comprising one or more meta-conjugated linkers (MCLs) and one or more aromatic moieties (Ars), wherein each of the one or more MCLs is partially conjugated with one of the one or more Ars at a meta position of the one or more MCLs; an electrolyte layer disposed over the electrochromic layer; a second conducting layer disposed over the electrolyte layer; and a second insulating substrate disposed over the second conducting layer. A thickness of the electrochromic layer is from 10 nm to 1500 nm resulting in transmittance of 85%-99.9% at a wavelength of 550 nm at a neutral state of the electrochromic layer.

The invention discloses an intelligent interactive electrochromic projection glass control method and system, and the method comprises the steps: determining an interaction intention of a user, and calling a corresponding target projection parameter; querying a target transmittance value corresponding to the updated target projection parameter according to a preset transmittance projection mapping table; the light transmittance of the electrochromic glass is controlled to reach the target light transmittance value, and actual display parameters of the projection picture are collected; when the deviation between the actual display parameter and the updated target projection parameter exceeds a preset range, generating an RGB compensation coefficient according to the current environment illumination intensity value and the target transmittance value; and sending the RGB compensation coefficient to the projection unit to adjust the RGB three-color light output intensity of the projection light source. According to the method and the device, the environment illumination, the user interaction requirement and the voice instruction are sensed in real time, the glass transmittance is adaptively adjusted, and the RGB light source output is dynamically compensated, so that the consistent display effect of the projection picture is improved, and the conference cooperation difficulty is reduced.

The invention relates to the technical field of electrochromism coating, in particular to an electrochromism device coating process and method, and the electrochromism device coating process comprises the following steps: step 1, substrate pretreatment: cleaning attachments on the surface of a flexible substrate through ultrasonic cleaning and plasma treatment; step 2, conducting layer deposition treatment: depositing an indium tin oxide (ITO) conducting layer on the substrate at the deposition temperature of 100-380 DEG C, the thickness of 200-350 nm and the vacuum degree of less than or equal to 10 <-5 > Pa; step 3, electrochromic layer deposition treatment: sequentially depositing a tungsten oxide (WO3) layer and a nickel oxide (NiO) layer through a magnetron sputtering process, and controlling the film thickness ratio of NiO to WO3 to enable the ratio of NiO / W to be 0.25-0.357; 4, annealing treatment is conducted, specifically, annealing is conducted for the first time at the temperature of 200-500 DEG C, and the annealing time is 200-300 seconds; and secondary annealing is conducted, specifically, annealing is conducted at the temperature of 400 DEG C, and the annealing time ranges from 200 seconds to 800 seconds. The effect of improving the yellow ground color of the electrochromic device is achieved.

The invention discloses an electrochromic device structure containing a reference electrode and a preparation method. The structure comprises at least one reference electrode, and a first conductive substrate layer, an electrochromic layer, an electrolyte layer, an ion storage layer and a second conductive substrate layer which are stacked from bottom to top, the reference electrodes are arranged on the side, close to the electrochromic layer or the ion storage layer, in the electrolyte layer, the reference electrodes make contact with the electrolyte layer, do not participate in the electrochromic reaction and are used for providing potential reference, and when the two reference electrodes are introduced, one reference electrode can serve as a third electrode to form a voltage loop with the first conductive substrate layer, and the other reference electrode can serve as a fourth electrode to form a voltage loop with the second conductive substrate layer. The other electrode and any one of the other three electrodes form a voltage loop; according to the technical scheme, the voltage and current changes of the electrochromic layer and the ion storage layer in the electrochromic device can be monitored, in-situ electrochromic spectrum research is achieved, the potential of the electrochromic layer is accurately controlled based on potential reference, and the electrochemical and spectral repeatability of the device is improved.

The invention discloses an excitation modulation frequency domain ultraviolet visible absorption spectrum testing system and method based on a lock-in amplifier and application. The test system comprises an excitation modulation system, a spectrum acquisition system, a signal acquisition and analysis system and a LabView upper computer system, the spectrum acquisition system comprises a portable fiber optic spectrometer, and the signal acquisition and analysis system comprises a data acquisition card and a lock-in amplifier. According to the invention, a LabView program is utilized to carry out control and data acquisition and analysis on the system. Compared with the traditional in-situ ultraviolet-visible absorption spectrum, the in-situ ultraviolet-visible absorption spectrum based on the lock-in amplifier has the advantages that excellent signal resolution can be realized with higher time resolution, and the in-situ ultraviolet-visible absorption spectrum based on the lock-in amplifier is particularly suitable for some systems with higher reaction rate and trace concentration change. The test system and the test method are not only suitable for common electrochromic and photochromic materials, but also suitable for dynamic characterization of more catalytic materials.

The invention relates to an electrochromic window multi-scene control method, system and device based on indoor human body thermal comfort and a medium. The method comprises the steps that a perception data set is constructed; based on the sensing data set, performing multi-parameter coupling calculation of solar incidence azimuth deviation constraint and dynamic projection overlapping to obtain a direct radiation component, performing window space coupling analysis and double space compensation calculation to obtain a scattered radiation component, and performing fusion to obtain an individual thermal radiation influence value; determining a scene category based on the perception data set, and establishing a thermal radiation evaluation benchmark by adopting a mode matched with the scene category; and if the thermal radiation evaluation benchmark exceeds a preset threshold value, the required transmissivity of the window faces is obtained through a full-transmissivity radiation distribution method, the corresponding window faces are adjusted to the target transmission gradient according to the required transmissivity, and coupling control over the wind direction and / or power of the air conditioning system is selectively triggered. According to the invention, by constructing a multi-dimensional dynamic sensing system and an intelligent control framework, collaborative optimization of human body thermal comfort and building energy efficiency is realized.

The invention provides a processing method of electrochromic glass and an electrochromic glass substrate. The processing method comprises the following steps: S1, pretreating a tempered glass substrate; s2, the pretreated tempered glass substrate is subjected to pressurization air cooling treatment, the air pressure in the pressurization air cooling treatment process ranges from 12000 Pa to 16000 Pa till the stress of the tempered glass substrate reaches a first expected stress value, and a prepared tempered glass substrate is obtained; and S3, electrochromism processing is conducted on the surface of the prepared tempered glass substrate, annealing treatment at the temperature of 300-400 DEG C is included in the electrochromism processing process, and the stress of the prepared tempered glass substrate reaches a second expected stress value. Compared with a conventional processing preparation technology, the preparation method has the advantages that the pressure of the electrochromic glass is increased to 90 Mpa or above, so that the electrochromic glass has richer performance and wider use scenes, and meanwhile, the preparation method also has the advantages of high controllability, good repeatability, stable product quality and the like.

The invention relates to the field of application of electrochromic glass, in particular to an environment response type self-powered electrochromic glass intelligent collaborative transparent enclosure structure which comprises an enclosure structure body, and the enclosure structure body is of a sandwich type structure with a hollow interlayer. A self-powered module, an electrochromic glass unit, an environment sensing module and an intelligent regulation and control module are arranged on the enclosure structure main body; in addition, the invention further discloses a dynamic regulation and control method which comprises the steps of collecting data in real time, calculating an energy state and a dynamic regulation and control strategy and the like. The high-efficiency laminated photovoltaic glass and the energy storage unit are integrated, a dynamic regulation and control algorithm is combined, environment response type self power supply is achieved, the light transmittance is adjusted in real time to meet the illumination requirement, the operation cost and the energy consumption are remarkably reduced, modular design is combined with the flexible circuit interconnection technology, and the flexible circuit interconnection technology is optimized. The whole system gets rid of the limitation of complex wiring when being applied to building external windows, curtain walls or daylighting roofs, the installation process is greatly simplified, and the convenience of later maintenance is improved.

An electrochromic lens (300) comprises: an electrochromic element (10); a sealing material (8) that covers the side surface of the electrochromic element (10); and a pair of transparent base material layers (a first transparent base material layer (1) and a second transparent base material layer (7)) that sandwich the electrochromic element (10) and the sealing material (8). The electrochromic lens (300) satisfies a prescribed requirement a.

An electrochromic device includes: two electrodes with an electrochromic material therebetween; switching elements, a source or a drain of each of which is coupled to one of the two electrodes; scanning lines coupled to gates of the switching elements; transmission lines coupled to the other one of the source and the drain of each switching element; and first switches capable of individually switching coupling between a first wiring and each transmission line. A first period and a second period are alternately provided. In the first period, reset potentials of the transmission lines are given at either a first timing before a signal to be transmitted to the gates is given to the scanning lines or a second timing after the signal is given to the scanning lines. In the second period, the signal potential is given to the transmission lines at the other timing of the first and second timings.

Various embodiments of systems and methods for remote monitoring and controlling of electrochromic glass are described. In some embodiments, a device monitoring and control system can receive messages via a communication hub from a plurality of remote installation sites for electrochromic glass units. The messages include telemetry data associated with the electrochromic glass units. The system can stream the telemetry data to a data analytics engine that can perform analytics functions on the telemetry data. The system provides results of the analytics functions to remote destinations via a data analytics interface. The system can also receive, via a control interface, control instructions from remote sources to control one or more of the electrochromic glass units. The system can transmit control messages to the installation sites to implement the control instructions. The system can also establish a connection for a requestor to an installation site using a site's specific connection protocol.

Embodiments described include adhesive bus bars for electrochromic or other optical state changing devices. The bus bars are configured to color match and / or provide minimal optical contrast with their surrounding environment in the optical device, provide better adhesion than ink based bus bars, as well as obviate the need to mitigate defects in underlaying layers.

A smart mobility vehicle includes a windshield including an electrochromic film having adjustable transparency based on power applied thereto, and a projector configured to project vehicle driving information onto the windshield, wherein the windshield comprises an internal display area and an external display area, the internal display area being configured to display an image toward an inside of the vehicle, the external display area being configured to display an image toward an outside of the vehicle.

The invention discloses an electrochromic medium composition and application thereof.The electrochromic medium composition comprises at least one anode electrochromic material and at least one cathode electrochromic material, and the cathode electrochromic material comprises viologen derivatives. The viologen derivative is fluorenyl viologen prepared by introducing fluorene into a viologen structure, the compound can show different coloring states under different voltages, the compound is matched with a ferrocene derivative, a red and blue mixed coloring state can be realized, and the color of the viologen derivative is improved. Or the compound, dimethyl dihydrophenazine and a ferrocene derivative are matched, so that a neutral gray coloring state can be realized, and the application value of the compound in the field of electrochromism is greatly expanded.

The invention discloses an inverted electrochromic energy storage device and a preparation method and application thereof. The inverted electrochromic energy storage device comprises a working electrode, a counter electrode and an electrolyte, wherein the working electrode comprises a color changing unit and an energy storage unit; the color changing unit comprises a first substrate, a metal layer and an electrochromic layer which are arranged in a stacked mode. The energy storage unit comprises a second substrate and an ion storage layer which are arranged in a stacked mode. The counter electrode is arranged between the color changing unit and the energy storage unit; the electrolyte is distributed in the porous structure of the first substrate. According to the inverted electrochromic energy storage device, the reflection type structure is constructed, the color changing unit and the energy storage unit are separated, colorful conversion and observation of colors are carried out above the first substrate, energy storage is adjusted through the thickness of the ion storage layer above the second substrate, and the energy storage efficiency is improved. Therefore, the contradiction between the color quality and the energy storage size of the electrochromic energy storage device is solved, and high energy storage is realized while the device is colorful and discolored.

The embodiment of the invention provides a preparation method of a peep-proof display screen, the peep-proof display screen, equipment and a peep-proof method. In the embodiment of the invention, a light-transmitting material layer is formed on the light-emitting side of the display module; the display module comprises a substrate and a plurality of pixel units arranged on the substrate in an array mode. Patterning the light-transmitting material layer so as to form a plurality of light-transmitting island structures arranged in an array on the light-emitting side of the display module; the plurality of light-transmitting island structures are in one-to-one correspondence with the plurality of pixel units; the orthographic projection of the light-transmitting island structure on the substrate coincides with the orthographic projection of the corresponding pixel unit on the substrate. Filling gaps among the plurality of light-transmitting island structures arranged in the array with an electrochromic material to form an electrochromic layer; the plurality of light-transmitting island structures are located in the electrochromic layer; the electrochromic layer varies light transmittance in response to a voltage applied thereon. According to the technical scheme, good peep-proof performance can be achieved, the thickness of the peep-proof structure is small, and the influence on display brightness is small.

The invention discloses a color changing device and a temperature self-adaptive color changing control method thereof, and belongs to the technical field of electrochromism, the color changing device comprises an electrochromism device, a power supply and a control module, the electrochromism device comprises two conductive layers and gel electrolyte arranged in the two conductive layers; the power supply is electrically connected with the two conductive layers; the control module is connected with the power supply; and a polymer-based gel electrolyte is arranged in the electrochromic device. In the application, the control module utilizes the cooperation of the photosensitive sensor and the temperature sensor, and accurately and automatically adjusts the transmittance and the reflectivity of the electrochromic device in real time according to the external light intensity change and the temperature change, so that the color changer can reach the required observation state at different temperatures, and the use requirements are met.

The invention provides an all-solid-state inorganic electrochromic glass preparation method and a monitoring regulation and control system, and relates to the technical field of glass preparation, and the method comprises the following steps: APCVD deposition of a film layer: plating a glass substrate with a first conductive film layer; plating a first insulating layer on the first conductive film layer; plating a main color-changing layer on the first insulating layer to obtain an electrochromic layer; pVD film layer deposition: plating a second insulating layer on the electrochromic layer; plating an electrochromic storage layer on the second insulating layer; and plating a second conductive layer on the electrochromic storage layer. By combining the APCVD and PVD processes, double reduction of equipment investment and material cost is realized, accurate control of the APCVD process and high deposition rate of the PVD process are combined, effective deposition rate is increased, uniformity and quality of a film layer are ensured, and two insulating layers are added on two sides of the electrochromic layer, so that electric leakage is effectively reduced, and the electrochromic effect is improved. The energy loss is reduced, and the aging process of the film layer is slowed down.

The invention provides a preparation method of a flexible integrated electrochromic device, which comprises the following steps: S1) mixing a crosslinking component A and a solvent to prepare a crosslinking component A premixing system; mixing the crosslinking component B with a solvent to prepare a crosslinking component B premixing system; the premixing system of the crosslinking component A and / or the premixing system of the crosslinking component B also comprises a non-crosslinking component; compounding a conductive layer on the surface of the flexible substrate layer to obtain a conductive film layer; s2) uniformly mixing the premixing system of the crosslinking component A and the premixing system of the crosslinking component B to form electrochromic slurry, and coating the electrochromic slurry on the surface of the conductive film layer; s3) combining the films, curing the electrochromic slurry, and forming a composite layer sequentially comprising a first flexible substrate surface, a first conductive layer, an integrated electrochromic layer, a second conductive layer and a second flexible substrate surface; and S4) performing laser slicing, electrode pasting and packaging to obtain the flexible integrated electrochromic device. According to the invention, the preparation of the flexible integrated electrochromic device can be completed very simply.

The invention belongs to the technical field of electrochemistry, and particularly discloses a photocuring solid electrolyte, a preparation method thereof and application of the photocuring solid electrolyte in an electrochromic device. The preparation method comprises the following steps: mixing an acrylate cross-linking agent, vinylethylene carbonate, ionic salt, ionic liquid and a photoinitiator to obtain an electrolyte precursor material; and then carrying out a photocuring reaction on the electrolyte precursor material to obtain the photocuring solid electrolyte. The photocuring solid electrolyte disclosed by the invention has high transparency and electrochemical stability; according to the invention, the solidification of the solid electrolyte is not influenced while the ionic salt is fully dissolved, so that the solid electrolyte has higher ionic conductivity. Compared with a liquid-state device, the compound has the advantages that the response time is not reduced, the cycling stability is not reduced, meanwhile, high safety and heat stability are achieved, and the good application prospect is achieved.

The invention discloses a vehicle film filtering degree adjusting system based on an electrochromic film, the electrochromic film is installed on a front windshield of a vehicle, and the system comprises a first acquisition module used for acquiring illumination intensity data in real time; the second acquisition module is used for acquiring a driver behavior image in real time; the control instruction module is used for setting an illumination intensity threshold value, judging whether the sunlight illumination intensity collected in real time exceeds the threshold value or not, further judging whether the filtering degree of the electrochromic film needs to be adjusted or not, and issuing a luminosity adjusting instruction; the processor is further used for analyzing driver behaviors according to the behavior recognition model, judging whether the filtering degree of the electrochromic film needs to be adjusted or not and issuing a luminosity adjusting instruction; and the filtering adjustment module is used for adjusting the filtering degree of the electrochromic film according to the luminosity adjustment instruction. The invention further discloses a vehicle film filtering degree adjusting method based on the electrochromic film. The driving safety is improved by adjusting the filtering degree of the vehicle film.

The invention discloses an intelligent color regulation and control method and system based on electrochromic glass, and relates to the technical field of electrochromism, and the method comprises the following steps: collecting spectral data of a current environment in real time; analyzing the solar energy conversion efficiency by using the spectral data, and calculating an electric energy value which can be used for regulation and control currently; analyzing the historical environment data and the historical regulation and control data of the user through a self-learning algorithm in combination with the usable electric energy value, and predicting the preference of the user; generating a glass color intelligent regulation and control scheme according to the user preference prediction result and the spectral data; based on a glass color intelligent regulation and control scheme, dynamic voltage is applied to each area through a distributed circuit, and color regulation and control are carried out. The current available electric energy value is calculated by embedding the multispectral sensor and combining the solar energy conversion efficiency, and meanwhile, the driving voltage of each region is dynamically calculated according to the user preference and the environmental spectral data, so that the problem of regulation and control deviation caused by material aging or uneven voltage distribution is solved.

The invention relates to a dual-band silver-based electrochromic device for dynamically regulating and controlling sun and mid-infrared radiation and application thereof.The device comprises two transparent conductive electrodes, silver-based gel electrolyte and a transparent packaging material, the two transparent conductive electrodes serve as a working electrode and a counter electrode respectively, the transparent conductive electrodes are indium tin oxide-quartz glass electrodes, and the silver-based gel electrolyte is arranged between the two transparent conductive electrodes. The working electrode is made of single-sided indium tin oxide-quartz glass, the counter electrode is made of double-sided indium tin oxide-quartz glass, the working electrode and the counter electrode are arranged in parallel and in a staggered manner and are bonded and fixed through a transparent packaging material, and then a silver-based gel electrolyte is injected between the two transparent conductive electrodes, so that the silver-based gel electrolyte is formed. And an electrode-electrolyte-electrode three-layer structure is formed. Compared with the prior art, the device has excellent sunlight and mid-infrared dual-band radiation modulation capability, is controllable in composition and structure and easy to expand, and has great application prospects in the aspect of all-season dynamic thermal management of transparent enclosure structures such as buildings and automobiles.

The invention relates to a display panel and a display device. The display panel comprises a substrate layer and a plurality of pixel units distributed on the substrate layer in an array mode, a light conversion assembly and an electrochromic layer are arranged between every two adjacent pixel units, and the light conversion assemblies are used for converting light energy into electric energy; the display panel further comprises a packaging layer, the electrochromic layer is located on the side, close to the substrate layer, of the packaging layer, the light conversion assemblies are located on the side, close to the packaging layer, of the substrate layer, and one light conversion assembly and one electrochromic layer are oppositely arranged. A light-emitting layer is arranged between every two adjacent photoelectric conversion assemblies. When the electrochromic layer is in the peep-proof mode, light rays obliquely emitted from the light-emitting layer act on the electrochromic layer and are reflected back to the photoelectric conversion assembly, so that the display panel has a narrow visual angle relative to a user. When the electrochromism layer is in a conventional display mode, external incident ambient light is emitted to the photoelectric conversion assembly through the electrochromism layer.

The utility model relates to the technical field of electrochromism, in particular to a base material structure, an electrochromism device, an electrochromism device and a terminal product. The base material structure comprises a conductive layer, a confluence layer, a base material layer and a dielectric layer. The conductive layer has a bearing surface. The confluence layer is arranged on the bearing surface; the base material layer is arranged on the bearing surface and is at least located on one side of the extension direction of the confluence layer; the dielectric layer is disposed on the bearing surface, and the dielectric layer is located between the confluence layer and the base material layer. The dielectric layer is arranged between the confluence layer and the base material layer, and the dielectric layer plays a role in separating the confluence layer from the base material layer, so that the base material layer is prevented from being in direct contact with the confluence layer, the surface of the confluence layer repels the base material layer, and the base material near the surface of the bus bar is not uniform; the technical problem that in the prior art, a base material is not uniform when being close to the surface of a confluence layer, and the optical performance of a device is affected is solved.

The invention relates to a multiband electrochromic composite film and a preparation method and application thereof, and belongs to the technical field of optical devices and preparation thereof. In order to solve the technical problem that in the prior art, the optical performance and the like of an electrochromic film in visible / near-infrared / mid-infrared areas need to be improved, the multiband electrochromic composite film has the optical modulation amplitude of 70%-78% under the light wavelength of 700 nm; and / or, the optical modulation amplitude is 65%-72% under the condition that the optical wavelength is 1200 nm; and / or in the bright hot mode, the light transmittance is 75%-82% under the light wavelength of 550 nm, and the light transmittance is 70%-75% under the light wavelength of 1200 nm; and / or in the bright cold mode, the light transmittance is 65%-72% under the light wavelength of 550 nm, and the light transmittance is 28%-35% under the light wavelength of 1200 nm; and / or in the dark cold mode, the light transmittance is 23%-28% under the light wavelength of 550 nm, and the light transmittance is 0.8%-2% under the light wavelength of 1200 nm. The method can be applied to intelligent window and spacecraft thermal management. The invention further provides a preparation method of the multiband electrochromic composite film.

The invention provides an electrochromic film, an electrochromic device and a preparation method of the electrochromic film, and relates to the technical field of electrochromic materials.The preparation method of the electrochromic film comprises the steps that a conjugated polymer is dissolved in a good solvent, and an electrochromic medium is obtained; preparing the electrochromic medium into an electrochromic film by adopting a spin coating method or a blade coating method; the electrochromic film is placed in a dopant solution to be doped, and the final electrochromic film is obtained. The invention provides a novel color changing mode of the polythiophene-based electrochromic film, and can improve the problem of poor bistable performance of the existing polythiophene-based electrochromic film.

The invention discloses a heat-preservation and heat-insulation composite window and a ventilation method. The heat-preservation and heat-insulation composite window comprises a window frame; the window frame is provided with a window frame top cavity and a window frame bottom cavity. A glass assembly; the glass assembly comprises electrochromic glass, first glass and second glass which are sequentially assembled in the notch of the window frame at intervals in the first direction; a first cavity is formed between the electrochromic glass and the first glass, and a second cavity is formed between the first glass and the second glass; a top opening and a bottom opening are formed between the electrochromic glass and the first glass; the window frame top cavity is provided with a first opening, and the window frame bottom cavity is provided with a second opening. The first opening, the top opening, the second opening and the bottom opening are communicated in sequence; a fan; the fan is arranged in the bottom cavity of the window frame. According to the scheme, the draught fan is arranged, heat absorbed in the first cavity is discharged out of a room so as to take away heat of the electrochromic glass, meanwhile, the second cavity is arranged to be a sealed cavity, the effects of heat preservation and heat conduction restraining are achieved, and the heat insulation effect is enhanced.

The invention relates to the technical field of electrochromism devices, and provides an electrochromism device, an electrochromism device and an electrochromism product, and the electrochromism device comprises a bonding assembly, a bus bar, and a first conductive substrate layer, an electrochromism layer and a second conductive substrate layer which are stacked; the bus bar is arranged on the peripheral edge of at least one of the first conductive substrate layer and the second conductive substrate layer; the bonding assembly is arranged on the peripheral edge of at least one of the first conductive substrate layer and the second conductive substrate layer and at least partially covers the bus bar; the bonding assembly comprises at least two sub-bonding pieces, and the at least two sub-bonding pieces are arranged on the peripheral edge of at least one of the first conductive substrate layer and the second conductive substrate layer in the first direction; the first direction is perpendicular to the stacking direction of the first conductive substrate layer, the electrochromic layer and the second conductive substrate layer. And the width of each sub-bonding piece is set in a reasonable range convenient to attach, so that the bonding difficulty when the bonding assembly is arranged is effectively reduced.