Electrochromic rearview mirror assembly

Abstract

The utility model relates to the technical field of electrochromism, in particular to an electrochromism rearview mirror assembly which comprises a rearview mirror shell and an electrochromism mirror assembly embedded in the shell. The electrochromic mirror assembly comprises a transparent substrate, a first glass substrate, a first conductive layer, an electrochromic layer, a second conductive layer and a second glass substrate which are arranged in sequence, the edge part of the electrochromic layer is provided with a sealing edge, and the shell is provided with a limiting block facing the electrochromic mirror assembly. One side of the limiting block is clamped and limited with the end part of the first glass substrate, the limiting block is provided with an abdicating groove towards the sealing edge, and the section width of the abdicating groove is smaller than that of the sealing edge. According to the electrochromic rearview mirror assembly, through the arrangement of the receding groove, when the sealing edge expands due to the change of the environment temperature, part of the sealing edge extends into the cavity of the receding groove, so that the sealing failure of the sealing edge to the electrochromic layer due to the fact that the sealing edge is separated from the conductive layer due to thermal expansion is avoided, the weather resistance of the electrochromic rearview mirror assembly is improved, and the service life of the electrochromic rearview mirror assembly is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrochromic technology, especially to an electrochromic rearview mirror assembly. BACKGROUND

[0002] Electrochromism refers to the phenomenon of reversible color or transparency changes of materials under the action of an applied electric field. This technology widely applies in the fields of smart windows, display screens, anti-glare mirrors, etc. by regulating the optical properties (such as absorption, reflection or transmission) of materials. Its application on automobile rearview mirrors is also increasingly valued, which can reduce glare and brightness and increase driving safety through the adjustment of the electrochromic layer.

[0003] During the use of the automobile, complex external environments need to be faced, and the change of environmental temperature difference is one of the factors that need to be considered. The weather resistance and use stability of each part under complex environmental temperature are important indicators for measuring quality. It is found during use that the electrochromic rearview mirror assembly is affected by complex environmental temperature, and the edge sealing part of the electrochromic layer may fall off, resulting in leakage of the internal electrochromic solution and damage to the electrochromic rearview mirror assembly. SUMMARY

[0004] The utility model aims at providing an electrochromic rearview mirror assembly, which can effectively prevent the edge sealing of the electrochromic mirror assembly from falling off and improve the weather resistance and service life of the electrochromic rearview mirror assembly.

[0005] To solve the above technical problems, the embodiment of the utility model provides a technical scheme as follows:

[0006] An electrochromic rearview mirror assembly includes a rearview mirror housing and an electrochromic mirror assembly embedded in the housing. The electrochromic mirror assembly includes a transparent substrate, a first glass substrate, a first conductive layer, an electrochromic layer, a second conductive layer, and a second glass substrate arranged in sequence. The edge of the electrochromic layer is provided with an edge sealing. The housing towards the electrochromic mirror assembly is provided with a limiting block. One side of the limiting block is connected with the end of the first glass substrate for limiting. The limiting block towards the edge sealing is provided with a giving slot. The cross-sectional width of the giving slot is smaller than that of the edge sealing.

[0007] Further, an elastic component is elastically compressed in the giving slot, and the end of the elastic component abuts against the edge sealing.

[0008] Further, the elastic component includes a spring and a thimble. One end of the thimble abuts against the end of the spring, and the other end abuts against the edge sealing.

[0009] Further, the edge sealing is centrally provided with a groove towards the elastic component. The opening width of the groove is smaller than the width of the cross section of the giving slot.

[0010] Further, the ejector pin is contained in the groove, and the ejector pin end abuts against the groove bottom wall.

[0011] Further, the shell inner wall is vertically provided with a plurality of positioning ribs towards the second glass substrate, and the positioning rib end abuts against the second glass substrate.

[0012] The electrochromic rearview mirror assembly has the advantages that, compared with the prior art, the clamping of the limiting block and the first glass substrate improves the accuracy and stability of the installation and positioning of the electrochromic mirror assembly and the shell; the clearance slot arranged towards the edge and the clearance slot cross section width smaller than the edge cross section width not only limit the edge through the abutment of the side wall end of the clearance slot against the edge part of the edge, but also enable the edge part to extend into the clearance slot cavity when the edge expands due to the change of the environmental temperature, thereby avoiding the seal failure of the edge to the electrochromic layer caused by the thermal expansion of the edge away from the conductive layer, improving the weather resistance and service life of the electrochromic rearview mirror assembly; the continuous elastic force of the elastic component on the edge enables the edge to continuously maintain the sealing of the electrochromic layer when the edge shrinks or expands due to the change of the environmental temperature; the deformation of the side wall to absorb the environmental stress when the edge changes in the environmental temperature improves the stability of the sealing of the electrochromic layer by the edge. BRIEF DESCRIPTION OF DRAWINGS

[0013] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the present embodiments, wherein elements having the same reference number designates the same or like elements. Figures in the drawings are not necessarily to scale and the size of one element in relation not another may be exaggerated or reduced for the sake of clarity.

[0014] Figure 1 is a structure schematic view of an electrochromic rearview mirror assembly in the first embodiment of the utility model;

[0015] Figure 2 is a structure schematic view of an electrochromic rearview mirror assembly in the second embodiment of the utility model;

[0016] Figure 3 is a partial structure schematic view of an electrochromic rearview mirror assembly in the third embodiment of the utility model;

[0017] Figure 4 is a partial structure schematic view of an electrochromic rearview mirror assembly in the fourth embodiment of the utility model;

[0018] Figure 5 is a structure schematic view of a clearance slot in the fourth embodiment of the utility model.

[0019] Explanation of reference signs: 1, shell; 10, electrochromic mirror assembly; 11, limiting block; 12, let go of the slot; 13, elastic component; 14, thimble; 15, positioning rib; 2, transparent substrate; 3, first glass substrate; 4, second glass substrate; 5, first conductive layer; 6, second conductive layer; 7, electrochromic layer; 8, edge sealing; 81, groove; 82, side wall; 83, bottom wall. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the claims of the present application can be realized.

[0021] As Figure 1As shown in the first embodiment of the utility model relates to a kind of electrochromic rearview mirror assemblies, including rearview mirror shell 1 and embedded in the electrochromic mirror assembly 10 of shell 1, the electrochromic mirror assembly 10 includes the transparent substrate 2 of the outermost layer and sequentially arranged first glass substrate 3, first conductive layer 5, electrochromic layer 7, second conductive layer 6 and second glass substrate 4, the first glass substrate 3 is adjacently arranged with transparent substrate 2, the edge portion of the electrochromic layer 7 is provided with edge seal 8, the edge seal 8 is annular rubber frame, for sealing electrochromic layer 7, the electrochromic layer 7 is the electrochromic solution between first conductive layer 5 and second conductive layer 6, the radial length of first conductive layer 5, second conductive layer 6, electrochromic layer 7 and second glass substrate 4 is same and less than the radial length of the first glass substrate 3;The housing 1 is provided with limiting block 11 towards electrochromic mirror assembly 10, one side of the limiting block 11 is connected with the end portion of first glass substrate 3 and is limited, and the inner side end portion is abutted with the radial edge portion of first conductive layer 5, second conductive layer 6, electrochromic layer 7 and second glass substrate 4, the limiting block 11 is provided with the accommodation slot 12 towards edge seal 8, and the cross-sectional width of the accommodation slot 12 is less than the cross-sectional width of the edge seal 8.By the clamping of limiting block 11 and first glass substrate 3, the accuracy and stability of the installation and positioning of electrochromic mirror assembly 10 and housing 1 are improved;By the setting of accommodation slot 12 towards edge seal 8, and the cross-sectional width of accommodation slot 12 is less than the cross-sectional width of edge seal 8, not only can the edge portion of edge seal 8 be limited by the end portion of the side wall 82 of accommodation slot 12 abutting edge seal 8, to prevent edge seal 8 from falling off, at the same time, when edge seal 8 expands due to environmental temperature change, part of edge seal 8 can also extend into the cavity of accommodation slot 12, so that the sealing failure of electrochromic layer 7 caused by the separation of edge seal 8 from conductive layer due to expansion stress is avoided, and the weather resistance and service life of electrochromic rearview mirror assembly are improved.

[0022] As Figure 2 shown, the second embodiment of the utility model relates to a kind of electrochromic rearview mirror assemblies, and the difference from the first embodiment is that elastic component 13 is provided in the accommodation slot 12 and is elastically compressed, and the end of the elastic component 13 is arranged to abut the edge seal 8.By the setting of elastic component 13, continuous elastic force can be generated on edge seal 8, so that the elastic component 13 always abuts on edge seal 8 when edge seal 8 shrinks or expands due to environmental temperature change, the sealing stability of electrochromic layer 7 by edge seal 8 is improved, the falling off of edge seal 8 of electrochromic mirror assembly 10 is effectively prevented, and the weather resistance and service life of electrochromic rearview mirror assembly are increased.

[0023] As Figure 3 shown, the third embodiment of the utility model relates to a kind of electrochromic rearview mirror components, compared with second embodiment, the elastic component 13 includes spring and thimble 14, one end of the thimble 14 and spring end abut, the other end and edge seal 8 abut.By the setting of thimble 14, the structure of elastic component 13 is optimized, by the face of thimble 14 end and the face of edge seal 8 abut, the stability of the force of elastic component 13 to edge seal 8 is increased, it is favorable to further improve the sealing stability of edge seal 8 to electrochromic layer 7.

[0024] As Figures 4-5 shown, the fourth embodiment of the utility model relates to a kind of electrochromic rearview mirror components, compared with third embodiment, the edge seal 8 is centrally provided with recess 81 towards elastic component 13, the opening width of the recess 81 is less than the width of the let-out slot 12 section.By the setting of recess 81, the stability of the sealing of edge seal 8 to electrochromic layer 7 can be further improved, specifically, when recess 81 shrinks due to environmental temperature change, the side wall 82 of recess 81 can be inclined towards external edge under the action of stress, when recess 81 expands due to environmental temperature change, the side wall 82 of recess 81 can be inclined towards the inside of recess 81 under the action of stress, by the deformation of side wall 82 to absorb environmental stress, reduce the possibility of edge seal 8 and conductive layer disengagement, increase the stability of the sealing effect of edge seal 8 to electrochromic layer 7.Preferably, thimble 14 is contained in the recess 81, and the end of thimble 14 abuts with the bottom wall 83 of recess 81, by the face contact of thimble 14 end and the bottom wall 83 of recess 81, the stability of the force of elastic component 13 to edge seal 8 is increased, further improve the sealing stability of edge seal 8 to electrochromic layer 7.

[0025] The utility model provides a kind of electrochromic rearview mirror components, by the clamping of limiting block and first glass substrate, the accuracy and stability of electrochromic mirror component and shell installation positioning are improved;By the let-out slot being provided towards edge seal, and the width of let-out slot section is less than the width of edge seal section, not only can the edge of edge seal be limited by the side wall end of let-out slot abut, but also when edge seal expands due to environmental temperature change, part of edge seal can be extended into the cavity of let-out slot, so that the sealing failure of edge seal to electrochromic layer caused by thermal expansion and conductive layer disengagement is avoided, the weather resistance and service life of electrochromic rearview mirror component are improved;By the setting of elastic component, continuous elastic force can be generated to edge seal, so that when edge seal shrinks or expands due to environmental temperature change, the sealing property to electrochromic layer can be continuously maintained;By the setting of recess, the environmental stress can be absorbed by the deformation of side wall when edge seal changes with environment temperature, further improve the stability of the sealing of edge seal to electrochromic layer.

[0026] It is to be understood by those skilled in the art that the above embodiments are specific embodiments for implementing the present application, and in actual application, various changes can be made to the forms and details thereof without departing from the spirit and scope of the present application.

Claims

1. An electrochromic rearview mirror assembly characterized by, The application relates to a rearview mirror shell (1) and an electrochromic mirror assembly (10) embedded in the shell (1), wherein the electrochromic mirror assembly (10) comprises a transparent substrate (2), a first glass substrate (3), a first conductive layer (5), an electrochromic layer (7), a second conductive layer (6) and a second glass substrate (4) arranged in sequence, the electrochromic layer (7) is provided with an edge sealing (8) at an edge portion, the shell (1) is provided with a limiting block (11) towards the electrochromic mirror assembly (10), one side of the limiting block (11) is clamped and limited with an end portion of the first glass substrate (3), the limiting block (11) is provided with a giving-up groove (12) towards the edge sealing (8), and the cross-sectional width of the giving-up groove (12) is smaller than that of the edge sealing (8).

2. The electrochromic rearview mirror assembly of claim 1, wherein, An elastic component (13) is elastically compressed in the giving-up groove (12), and an end portion of the elastic component (13) is arranged in abutment with the edge sealing (8).

3. The electrochromic rearview mirror assembly of claim 2, wherein, The elastic component (13) comprises a spring and a thimble (14), one end of the thimble (14) is in abutment with an end portion of the spring, and the other end is in abutment with the edge sealing (8).

4. The electrochromic rearview mirror assembly of claim 3, wherein, The edge sealing (8) is centrally provided with a groove (81) towards the elastic component (13), and the opening width of the groove (81) is smaller than the cross-sectional width of the giving-up groove (12).

5. The electrochromic rearview mirror assembly of claim 4, wherein, The thimble (14) is accommodated in the groove (81), and an end portion of the thimble (14) is in abutment with a bottom wall (83) of the groove (81).

6. The electrochromic rearview mirror assembly of any of claims 1-5, wherein, A plurality of positioning ribs (15) are vertically arranged on an inner wall of the shell (1) towards the second glass substrate (4), and end portions of the positioning ribs (15) are in abutment with the second glass substrate (4).

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