CN219065951U

CN219065951U - Electrochromic device

Info

Publication number: CN219065951U
Application number: CN202223546821.4U
Authority: CN
Inventors: 仝泽彬; 林邦
Original assignee: Yangzhou Jingcai Photoelectric Technology Co ltd
Current assignee: Yangzhou Jingcai Photoelectric Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-23
Anticipated expiration: 2032-12-29

Abstract

The utility model provides an electrochromic device, including transparent glass, reflecting glass, electrochromic conductive liquid, sealant, transparent glass and reflecting glass interval set up and pass through the sealant sealing connection together, leave the cavity that is used for filling electrochromic conductive liquid between transparent glass and reflecting glass, the outer lane of transparent conductive layer at transparent glass's rear surface is provided with preceding conductive adhesive, preceding conductive adhesive is connected with preceding conductive piece, the corresponding position of the outer lane of reflecting conductive layer at reflecting glass's front surface is provided with back conductive adhesive, back conductive adhesive is connected with back conductive piece, back conductive piece and preceding conductive piece mutually separate set up respectively, preceding conductive adhesive is sealed with back conductive adhesive mutually separately through the sealant and is connected together. The advantages are that: the conductive mode of bonding the conductive adhesive and the conductive film layer replaces the conventional conductive mode of clamping the conductive strip, so that the stability of current conduction is improved; the color-changing and fading response time of the device is shortened.

Description

Electrochromic device

Technical Field

The utility model relates to the technical field of manufacturing of anti-dazzle rearview mirrors, in particular to an electrochromic device.

Background

Electrochromic refers to a phenomenon that optical properties (reflectivity, transmittance, absorptivity, etc.) of a material undergo a stable and reversible color change under the action of an applied electric field, and is represented by a reversible change in color and transparency in appearance. In the automobile rearview mirror, the most applied is the organic electrochromic material, and the intensity of reflected light is adjusted according to the intensity of external light through an electronic induction system, so that the anti-dazzle effect is achieved, and the driving is safer.

The structure of EC glass adopted by the anti-glare rearview mirror in the prior art mainly comprises transparent ITO glass, reflective layer glass, electrochromic conductive liquid, sealant and conductive strips. The conductive strips are contacted with the dislocated conductive film layers in a buckling manner.

At present, the main EC glass in the market basically conducts current by adopting a mode of clamping the conductive strips (namely, the contact between the clamping teeth of the conductive strips and the pressing part of the conductive film layer of the glass conducts current), so that the actual conductive contact area is small, the conductive effect is poor, and meanwhile, the conductive film layer is exposed for a long time and is easy to oxidize or corrode or even fall off, so that the service performance and the service life of the EC glass are seriously affected, and the structure of the rearview mirror needs to be further improved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing an electrochromic device with high conductive efficiency, good effect and good sealing performance aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: the electrochromic device comprises transparent glass, reflecting glass, electrochromic conducting liquid and sealant, wherein the transparent glass and the reflecting glass are arranged at intervals and are connected together in a sealing manner through the sealant, and a cavity for filling the electrochromic conducting liquid is reserved between the transparent glass and the reflecting glass, and the electrochromic device is characterized in that: the outer ring of the transparent conductive layer on the rear surface of the transparent glass is provided with front conductive glue, the front conductive glue is connected with a front conductive piece, the corresponding position of the outer ring of the reflective conductive layer on the front surface of the reflective glass is provided with rear conductive glue, the rear conductive glue is connected with a rear conductive piece, the rear conductive piece and the front conductive piece are mutually and separately arranged, and the front conductive glue and the rear conductive glue are mutually and separately connected together in a sealing way through sealing glue.

As an improvement, the front conductive adhesive can preferably surround the outer ring of the transparent conductive layer, and a notch for preventing the front conductive adhesive from being shorted is reserved on the front conductive adhesive.

Further improved, the front conductive member may preferably be a copper foil.

Further improved, one end of the front conductive member can be preferably directly inserted into the front conductive adhesive, and the other end of the front conductive member extends out of the end part of the transparent glass.

As a modification, the front conductive paste may preferably surround the outer edge of the transparent glass for 3/4 turn.

As an improvement, the top-view projection of the transparent glass may preferably coincide with the top-view projection of the reflective glass, and the glue spreading position of the front conductive glue coincides with the glue spreading position of the rear conductive glue.

Further improved, the rear conductive member may preferably be a copper foil.

Further improved, one end of the rear conductive member may be preferably directly inserted into the rear conductive adhesive, and the other end of the rear conductive member extends out of the end of the reflective glass.

Further improved, the rear conductive member may be preferably staggered up and down with the front conductive member.

As an improvement, the transparent conductive layer may preferably be an ITO conductive layer.

Compared with the prior art, the utility model has the advantages that: the conductive mode of the conductive adhesive and the conductive film layer replaces the traditional conductive mode of the buckle conductive strip. Because the conductive adhesive is firmly bonded with the conductive glass, compared with the traditional buckle conductive strip, the electrochromic device can better ensure the stability of current conduction; compared with the traditional unilateral buckle type conduction mode, the current is conducted from one side of the glass to the other side of the glass through the conductive film layer, the electrochromic device adopts the conductive adhesive to be uniformly distributed around the conductive glass for one circle, and the current is conducted from the periphery of the conductive glass to the center of the glass through the conductive film layer, so that the response time of the electrochromic device for changing color and fading can be obviously shortened; the conductive film layer is not exposed in the air, the possibility of oxidation corrosion of the film layer is avoided, and the service life of the electrochromic device can be greatly prolonged.

Drawings

FIG. 1 is a schematic view of a glue application position of a front glass plate according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a glue application position of a rear glass sheet according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of an embodiment of the present utility model;

fig. 4 is a schematic diagram of a prior art structure.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 3, the electrochromic device of the present embodiment includes transparent glass 1, i.e., a front glass plate, reflective glass 2, i.e., a rear glass plate, electrochromic conductive liquid 4, sealant 3, and specific components and manufacturing methods of the electrochromic conductive liquid 4, materials and manufacturing methods of the front glass plate and the rear glass plate are known technologies, and will not be described herein. The transparent glass 1 and the reflecting glass 2 are arranged at intervals and are connected together in a sealing mode through a sealing adhesive 3, a cavity for filling the electrochromic conducting liquid 4 is reserved between the transparent glass 1 and the reflecting glass 2, a front conducting adhesive 12 is arranged on the outer ring of the transparent conducting layer 11 on the rear surface of the transparent glass 1, the front conducting adhesive 12 is connected with a front conducting element 13, a rear conducting adhesive 22 is arranged at a corresponding position of the outer ring of the reflecting conducting layer 21 on the front surface of the reflecting glass 2, the rear conducting adhesive 22 is connected with a rear conducting element 23, the rear conducting element 23 and the front conducting element 13 are arranged separately from each other, and the front conducting adhesive 12 is connected together in a sealing mode through the sealing adhesive 3 and the rear conducting adhesive 22 in a sealing mode in an isolated mode. The front conductive adhesive 12 and the rear conductive adhesive 22 are made of the same conductive adhesive, and specific components thereof belong to the prior art, so that details are not described again, and similarly, the sealant 3 is also the prior art, so that details are not described again.

The front conductive adhesive 12 surrounds the outer ring of the transparent conductive layer 11, and a notch for preventing the front conductive adhesive 12 from being shorted is left on the front conductive adhesive 12. The front conductive member 13 is a copper foil. One end of the front conductive piece 13 is directly inserted into the front conductive adhesive 12, and the other end of the front conductive piece 13 extends out of the end part of the transparent glass 1. The front conductive adhesive 12 surrounds the outer edge of the transparent glass 1 for 3/4 turn.

The top projection of the transparent glass 1 coincides with the top projection of the reflecting glass 2, and the glue spreading position of the front conductive glue 12 coincides with the glue spreading position of the rear conductive glue 22. The rear conductive member 23 is a copper foil. One end of the rear conductive member 23 is directly inserted into the rear conductive adhesive 22, and the other end of the rear conductive member 23 extends out of the end of the reflective glass 2. The rear conductive members 23 are staggered up and down with the front conductive members 13. The transparent conductive layer 11 is an ITO conductive layer. ITO refers to indium tin oxide.

Working principle: as shown in fig. 4, in the prior art, the glass conductive layer corresponding to the snap conductive strip 5 is conductive, and then the glass conductive layer is conductive to the electrochromic liquid; and as shown in 3, the technical scheme adopted by the application is that the current is conducted to the conductive adhesive by the copper foil, then conducted to the front glass and the rear glass by the conductive adhesive, and then conducted to the electrochromic solution by the front glass and the rear glass, and the electrochromic solution is subjected to stable and reversible color change under the action of the externally applied current.

Because the conductive adhesive is firmly bonded with the conductive glass, compared with the traditional buckle conductive strip, the device can better ensure the stability of current conduction; compared with the traditional unilateral buckle type conduction mode, the device adopts the conductive adhesive to be uniformly distributed around the conductive glass for one circle, and the current is conducted from the periphery of the conductive glass to the center of the glass through the conductive film, so that the response time of the electrochromic device to color change and color fading can be obviously shortened; the conductive film layer is not exposed in the air, the possibility of oxidation corrosion of the film layer is avoided, and the service life of the electrochromic device can be greatly prolonged.

Claims

1. The utility model provides an electrochromic device, includes transparent glass (1), reflecting glass (2), electrochromic conducting liquid (4), sealant (3), transparent glass (1) and reflecting glass (2) interval set up and are in the same place through sealant (3) sealing connection leave between transparent glass (1) and reflecting glass (2) and be used for filling in the cavity of electrochromic conducting liquid (4), its characterized in that: the outer ring of the transparent conductive layer (11) on the rear surface of the transparent glass (1) is provided with a front conductive adhesive (12), the front conductive adhesive (12) is connected with a front conductive element (13), a rear conductive adhesive (22) is arranged at a corresponding position of the outer ring of the reflective conductive layer (21) on the front surface of the reflective glass (2), the rear conductive adhesive (22) is connected with a rear conductive element (23), the rear conductive element (23) and the front conductive element (13) are separately arranged, and the front conductive adhesive (12) is in sealing connection with the rear conductive adhesive (22) in an isolated manner through a sealing adhesive (3).

2. An electrochromic device according to claim 1, characterized in that: the front conductive adhesive (12) surrounds the outer ring of the transparent conductive layer (11), and a notch for preventing the front conductive adhesive (12) from being shorted is reserved on the front conductive adhesive (12).

3. An electrochromic device according to claim 2, characterized in that: the front conductive member (13) is copper foil.

4. An electrochromic device according to claim 3, characterized in that: one end of the front conductive piece (13) is directly inserted into the front conductive adhesive (12), and the other end of the front conductive piece (13) extends out of the end part of the transparent glass (1).

5. An electrochromic device according to any one of claims 2 to 4, characterised in that: the front conductive adhesive (12) surrounds the outer edge of the transparent glass (1) for 3/4 circle.

6. An electrochromic device according to any one of claims 1 to 4, characterised in that: the overlooking projection of the transparent glass (1) coincides with the overlooking projection of the reflecting glass (2), and the gluing position of the front conductive adhesive (12) coincides with the gluing position of the rear conductive adhesive (22).

7. The electrochromic device of claim 6, wherein: the rear conductive member (23) is a copper foil.

8. The electrochromic device according to claim 7, wherein: one end of the rear conductive piece (23) is directly inserted into the rear conductive adhesive (22), and the other end of the rear conductive piece (23) extends out of the end part of the reflecting glass (2).

9. The electrochromic device according to claim 8, wherein: the rear conductive pieces (23) and the front conductive pieces (13) are arranged in a staggered mode up and down.

10. An electrochromic device according to any one of claims 1 to 4, characterised in that: the transparent conductive layer (11) is an ITO conductive layer.