Electrochromic anti-dazzling automobile inside rear-view mirror assembly

Abstract

The utility model relates to an electrochromic anti-dazzling automobile inside rear-view mirror assembly which comprises a mirror shell, a circuit board and an electrochromic lens element. The mirror shell comprises an opening facing an observer; the circuit board is arranged in the mirror shell; the electrochromic lens element is contained in the opening of the mirror shell, the front face of the electrochromic lens element faces an observer, and the back face of the electrochromic lens element is back to the observer; the electrochromic lens element is electrically connected with the circuit board through a power line to form an electric loop; wherein a glare photosensitive sensor and an ambient light photosensitive sensor are not arranged in the mirror shell. According to the electrochromic anti-dazzling automobile inside rear-view mirror assembly, the circuit board is arranged inside the rear-view mirror assembly, but the dazzling photosensitive sensor and the ambient light photosensitive sensor are not arranged inside the rear-view mirror assembly, so that the development and design difficulty of a rear-view mirror product is reduced while the automobile body photosensitive sensor is utilized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rear -view mirror especially relates to a kind of electrochromic anti-dazzling car interior rear -view mirror assembly. BACKGROUND

[0002] Electrochromic rear -view mirror has the effect of anti-dazzling, safe driving, and is widely used in car interior and exterior mirror.Electrochromic anti-dazzling interior rear -view mirror works by the light intensity of ambient light and vehicle rear glare that are respectively obtained by the front and rear photosensitive sensors arranged in rear -view mirror, controls the voltage of the both ends of electrochromic anti-dazzling interior rear -view mirror by the comparison of the light intensity, and then changes the color, reflectivity, light transmittance and other optical properties of electrochromic rear -view mirror.

[0003] Existing electrochromic anti-dazzling rear -view mirror, especially interior rear -view mirror, usually ambient light photosensitive sensor, glare photosensitive sensor and circuit board are all arranged in the shell of rear -view mirror, to be made into an independent complete rear -view mirror product;The prior application of applicant Chinese patent CN202123237484.6 proposes an improved technical solution, i.e.ambient light photosensitive sensor, glare photosensitive sensor and circuit board are all arranged outside the shell of rear -view mirror, to reduce the weight and volume of rear -view mirror product, improve its flexibility and aesthetic degree of adjustment.However, since circuit board needs to be integrated in car console or other modules in car, it increases the design and manufacturing difficulty of car console or other module circuit board, especially for rear -view mirror circuit board and console or other module circuit board, which needs to be separately supplied by car host factory or first-level supplier, which greatly causes the confusion and cycle extension of product development design. SUMMARY

[0004] In view of the above deficiencies of prior art, the utility model provides a kind of electrochromic anti-dazzling car interior rear -view mirror assembly, to solve the problems, such as the difficulty of reducing rear -view mirror product development design while using vehicle body photosensitive sensor by existing electrochromic anti-dazzling rear -view mirror.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0006] A kind of electrochromic anti-dazzling car interior rear -view mirror assembly, the car interior rear -view mirror assembly includes:

[0007] Mirror shell, including the opening towards observer;

[0008] Circuit board, the circuit board is arranged in the mirror shell;And

[0009] An electrochromic lens element is accommodated at the opening of the mirror housing, a front surface of the electrochromic lens element faces the observer, and a back surface of the electrochromic lens element faces away from the observer; the electrochromic lens element is electrically connected with the circuit board through the power line to form an electric circuit;

[0010] The mirror housing is not provided with a glare light photosensitive sensor and an ambient light photosensitive sensor inside.

[0011] As a preferred technical solution, the circuit board is in an electrically connected relationship with the glare light photosensitive sensor or the ambient light photosensitive sensor.

[0012] As a preferred technical solution, the circuit board is in an electrically connected relationship with the glare light photosensitive sensor and the ambient light photosensitive sensor.

[0013] As a preferred technical solution, the electrochromic lens element comprises a first substrate, a second substrate, a sealing element, and an electrochromic medium; the sealing element is circumferentially arranged between the outer peripheral regions of the first substrate and the second substrate to seally combine the first substrate and the second substrate with each other and define a cavity; the electrochromic medium is arranged in the cavity; a transparent conductive film layer and a conductive reflective film layer are respectively deposited on the first substrate and the second substrate; the transparent conductive film layer and the conductive reflective film layer are in contact with the electrochromic medium.

[0014] As a preferred technical solution, the electrochromic lens element further comprises a first conductive clip and a second conductive clip; one end of the first conductive clip extends to the second surface of the first substrate to be in electrical contact with the transparent conductive film layer, and the other end of the first conductive clip extends to the fourth surface of the second substrate; one end of the second conductive clip extends to the third surface of the second substrate to be in electrical contact with the conductive reflective film layer, and the other end of the second conductive clip extends to the fourth surface of the second substrate.

[0015] As a preferred technical solution, the automobile interior rearview mirror assembly further comprises a frame; the frame extends in the circumferential direction of the electrochromic lens element in the radial direction, one end of the frame in the longitudinal direction is connected with the mirror housing, and the other end of the frame extends to at least one of the first surface of the first substrate or the edge surface of the first substrate and the edge surface of the second substrate.

[0016] As a preferred technical solution, the automobile interior rearview mirror assembly further comprises a bearing plate; the bearing plate is arranged on the fourth surface of the second substrate.

[0017] As a preferred technical solution, the bearing plate is connected to the second substrate by gluing.

[0018] As a preferred technical solution, the opening end of the mirror housing extends to at least one of the edge surface of the first substrate and the edge surface of the second substrate.

[0019] As a preferred technical scheme, the bearing plate is further provided with a protruding connecting part near the peripheral area, and the connecting part is connected with the mirror shell.

[0020] As a preferred technical scheme, the outer peripheral area of the first substrate is further provided with a shielding layer, and the width of the shielding layer is greater than the width of the sealing member.

[0021] As a preferred technical scheme, the edge surface of the first substrate is a smooth transition round corner.

[0022] The present application has the following beneficial effects:

[0023] The electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application sets the circuit board in the mirror shell of the interior rearview mirror, but sets the photosensitive sensor outside the mirror shell of the interior rearview mirror, on the one hand, can fully utilize the photosensitive sensor set on other modules or parts of the whole vehicle to realize the receiving of the rearview mirror light signal, on the other hand, reduces the design and development difficulty of the rearview mirror assembly or the whole vehicle center console or other module circuit board, reduces the overall manufacturing cost of the rearview mirror product, and provides the flexibility of the whole vehicle manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Fig. 1 is a cross-sectional structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 1;

[0025] Figure 2 Fig. 2 is a cross-sectional structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 2;

[0026] Figure 3 Fig. 3 is a cross-sectional structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 3;

[0027] Figure 4 Fig. 1 is a front structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 1;

[0028] Figure 5 Fig. 2 is a front structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 2;

[0029] Figure 6 Fig. 3 is a front structure schematic view of the electrochromic anti-dazzle automobile interior rearview mirror assembly of the present application embodiment 3;

[0030] Among them, the mirror housing 1, the electrochromic lens element 2, the glare photosensor 3, the ambient light photosensor 4, the circuit board 5, the frame 6, the carrier board 7, the power cord 8, the first substrate 21, the second substrate 22, the seal 23, the electrochromic medium 24, the first conductive clip 25, the second conductive clip 26, the first surface 21a, the second surface 21b, the rounded corners 21c, the third surface 22a, the fourth surface 22b, the transparent conductive film layer 201, the conductive reflective film layer 202, and the shielding layer 203. DETAILED DESCRIPTION

[0031] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0032] Example 1

[0033] The electrochromic anti-glare interior rearview mirror of the present embodiment is a framed rearview mirror. Figure 1 and Figure 4 As shown, it includes a mirror housing 1, an electrochromic lens element 2, a circuit board 5 and a frame 6; the mirror housing 1 includes an opening facing the observer, and the electrochromic lens element 2 is accommodated in the opening of the mirror housing 1; the frame 6 extends radially along the circumferential direction of the electrochromic lens element 2, and one end of the frame 6 in the longitudinal direction is connected to the mirror housing 1, and is further fixed by a bayonet connection with a wedge block provided in the mirror housing 1 through a protruding connecting portion; the other end extends to the first surface 21a of the first substrate 21, and the seal 23 and the electrode lead-out device (the first conductive clip 25 and the second conductive clip 26) provided in the electrochromic lens element 2 are shielded by the frame 6.

[0034] The front surface of the electrochromic lens element 2 faces the observer, and the back surface faces away from the observer; the electrochromic lens element 2 comprises a first substrate 21, a second substrate 22, a sealant 23, and an electrochromic medium 24; for the convenience of description, the surface of the first substrate 21 facing the observer is defined as the first surface 21a, and the surface facing away from the observer is defined as the second surface 21b; the surface of the second substrate 22 facing the observer is defined as the third surface 22a, and the surface facing away from the observer is defined as the fourth surface 22b. The sealant 23 is circumferentially arranged between the outer peripheral regions of the first substrate 21 and the second substrate 22 to seally combine the first substrate 21 and the second substrate 22 with each other and define a cavity; the electrochromic medium 24 is arranged in the cavity; the second surface 21b of the first substrate 21 and the third surface 22a of the second substrate 22 are respectively provided with a transparent conductive film layer 201 and a conductive reflective film layer 202; the transparent conductive film layer 201 and the conductive reflective film layer 202 are in contact with the electrochromic medium 24. The electrochromic lens element 2 further comprises a first conductive clip 25 and a second conductive clip 26; one end of the first conductive clip 25 extends to the second surface 21b of the first substrate 21 to be in electrical contact with the transparent conductive film layer 201, and the other end extends to the fourth surface 22b of the second substrate 22; one end of the second conductive clip 26 extends to the third surface 22a of the second substrate 22 to be in electrical contact with the conductive reflective film layer 202, and the other end extends to the fourth surface 22b of the second substrate 22.

[0035] The transparent conductive film layer 201 can be any one of the transparent conductive film layers 201 known to those skilled in the art, for example, the transparent conductive film layer 201 can be ITO, FTO, etc. The conductive reflective film layer 202 can be any one of the film layer systems obtained by combining a conductive film layer and a reflective film layer known to those skilled in the art, for example, the conductive film layer can also be ITO, FTO, etc., and the reflective film layer can be a single metal film layer of gold, silver, platinum, palladium, etc., or a composite film layer composed of a first high-refractive-index film layer, a low-refractive-index film layer, and a second high-refractive-index film layer. Further, the first high-refractive-index film layer and the second high-refractive-index film layer are each one of Nb2O5, Ta2O5, TiO2, and ZrO2; and the low-refractive-index film layer is SiO2 or MgF2. The above-mentioned materials are only for example, and as long as the transparent conductive film layer 201 of the utility model is a film layer material disclosed in the art that has the functions of transparency and conductivity, and as long as the conductive reflective film layer 202 is a film layer material disclosed in the art that has the functions of conductivity and reflection, they are within the protection scope of the utility model. The film layer materials of Example 2 and Example 3 are the same as those of the present embodiment, and will not be described again.

[0036] The automobile interior rearview mirror assembly of the embodiment, the circuit board 5 is arranged in the mirror shell 1, the circuit board 5 is simultaneously established the electrical connection relationship with the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4, but the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4 are not arranged in the mirror shell 1 inside;The electrochromic lens element 2 is electrically connected with the circuit board 5 through the power line 8 and forms an electric circuit.The glare photosensitive sensor 3 and the ambient light photosensitive sensor 4 are arranged on other positions of the vehicle body, for example, can be arranged on the vehicle lamp, such as the glare photosensitive sensor 3 is arranged on the rear vehicle lamp, to receive the strong light intensity of the rear vehicle, and the ambient light photosensitive sensor 4 is arranged on the front vehicle lamp, to receive the ambient light intensity of the front.The light intensity contrast received by the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4, the working state of the electrochromic lens element 2 is controlled by the circuit board 5, and the automatic anti-glare effect of the automobile interior rearview mirror assembly is realized.

[0037] As an alternative embodiment, the circuit board is established electrical connection relationship with the glare photosensitive sensor or the ambient light photosensitive sensor;The light intensity received by the glare photosensitive sensor 3 or the ambient light photosensitive sensor 4 is directly used to adjust the reflectivity of the electrochromic lens element 2 by the circuit board 5, and the automatic anti-glare effect of the automobile interior rearview mirror assembly is realized.

[0038] Embodiment 2

[0039] The electrochromic anti-glare automobile interior rearview mirror assembly of the embodiment is a frameless rearview mirror, as shown in Figure 2 And Figure 5 It includes mirror shell 1, electrochromic lens element 2, circuit board 5 and bearing plate 7;The mirror shell 1 includes an opening towards the observer, the electrochromic lens element 2 is contained in the opening of the mirror shell 1, the bearing plate 7 is connected on the fourth surface 22b of the second substrate 22 by the way of cementation.The bearing plate 7 is also provided with a protruding connecting part near the peripheral region, and the connecting part is connected with the mirror shell 1.

[0040] The front surface of the electrochromic lens element 2 faces the observer, and the back surface faces away from the observer; the electrochromic lens element 2 comprises a first substrate 21, a second substrate 22, a seal 23, and an electrochromic medium 24; the first substrate 21 has a larger peripheral size than the second substrate 22, and the open end of the mirror housing 1 extends to the edge surface of the second substrate 22. The seal 23 is arranged in the peripheral region between the first substrate 21 and the second substrate 22 in the circumferential direction to seally combine the first substrate 21 and the second substrate 22 with each other and define a cavity; the electrochromic medium 24 is arranged in the cavity; a transparent conductive film layer 201 and a conductive reflective film layer 202 are respectively deposited on the second surface 21b of the first substrate 21 and the third surface 22a of the second substrate 22; the transparent conductive film layer 201 and the conductive reflective film layer 202 are in contact with the electrochromic medium 24. The edge surface of the first substrate 21 is a smooth transition round corner 21c. The electrochromic lens element 2 further comprises a first conductive clip 25 and a second conductive clip 26; one end of the first conductive clip 25 extends to the second surface 21b of the first substrate 21 to be in electrical contact with the transparent conductive film layer 201, and the other end extends to the fourth surface 22b of the second substrate 22; one end of the second conductive clip 26 extends to the third surface 22a of the second substrate 22 to be in electrical contact with the conductive reflective film layer 202, and the other end extends to the fourth surface 22b of the second substrate 22. A shielding layer 203 is further arranged at the peripheral region of the first substrate 21; the shielding layer 203 has a width greater than that of the seal 23, and is used to shield the seal 23 and the electrode lead-out device (the first conductive clip 25 and the second conductive clip 26).

[0041] The shielding layer 203 is a metal layer, or is composed of a metal layer and at least one metal oxide layer. The metal layer is at least one of Ag, Ti, Al, Cr, Ni, Mo, Ru, Rh, Ir, Pd, Pt, and the metal oxide layer is at least one of niobium oxide, aluminum oxide, titanium oxide, indium oxide, tin oxide, tantalum oxide, zinc oxide, chromium oxide, copper oxide, manganese oxide, nickel oxide, molybdenum oxide, and iron oxide; the shielding layer 203 can be prepared by physical vapor deposition methods such as vacuum evaporation or magnetron sputtering, or chemical plating methods. The shielding layer 203 obtained by the above-mentioned physical vapor deposition method hides the seal 23 and the conductive clip arranged on the substrate, and further makes the rearview mirror assembly more visually beautiful as a whole. By arranging the shielding layer 203, a frameless rearview mirror can be prepared, further expanding the field of view of the electrochromic anti-dazzle rearview mirror.

[0042] The automobile interior rearview mirror assembly of the embodiment, the circuit board 5 is arranged in the mirror shell 1, the circuit board 5 is simultaneously established the electrical connection relation with the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4, but the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4 are not arranged in the mirror shell 1 inside;The electrochromic lens element 2 is electrically connected with the circuit board 5 by the power line 8 and forms the electrical circuit.The glare photosensitive sensor 3 and the ambient light photosensitive sensor 4 are arranged on other positions of the vehicle body, for example, can be arranged on the vehicle light, such as the glare photosensitive sensor 3 is arranged on the rear vehicle light to receive the light intensity of the strong light of the rear vehicle, and the ambient light photosensitive sensor 4 is arranged on the front vehicle light to receive the light intensity of the ambient light of the front.The light intensity contrast received by the glare photosensitive sensor 3 and the ambient light photosensitive sensor 4, the working state of the electrochromic lens element 2 is controlled by the circuit board 5, and the automatic anti-glare effect of the automobile interior rearview mirror assembly is realized.

[0043] As an alternative embodiment, the circuit board is established the electrical connection relation with the glare photosensitive sensor or the ambient light photosensitive sensor;The light intensity received by the glare photosensitive sensor 3 or the ambient light photosensitive sensor 4 is directly used to adjust the reflectivity of the electrochromic lens element 2 by the circuit board 5, and the automatic anti-glare effect of the automobile interior rearview mirror assembly is realized.

[0044] Embodiment 3

[0045] The electrochromic anti-glare automobile interior rearview mirror assembly of the embodiment, as shown in Figure 3 And Figure 6 The structure is basically same as that of embodiment 2, and the difference is that the edge surface of the first substrate 21 of the automobile interior rearview mirror assembly of the embodiment is not chamfered to form a smooth transition round corner;In addition, the opening end of the mirror shell 1 extends to the edge surface of the first substrate 21, and the end is substantially flush with the first surface 21a of the first substrate 21.

[0046] The basic principle, main features and advantages of the utility model are shown and described above.The skilled person in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only the principles of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. An electrochromic anti-glare automotive interior rearview mirror assembly, characterized by, The automobile interior rearview mirror assembly comprises: a mirror housing comprising an opening facing an observer; a circuit board disposed in the mirror housing; and an electrochromic mirror element accommodated at the opening of the mirror housing, a front surface of the electrochromic mirror element facing the observer and a back surface of the electrochromic mirror element facing away from the observer; the electrochromic mirror element is electrically connected with the circuit board through a power line to form an electrical loop; wherein the mirror housing is not provided with a glare light photosensitive sensor and an ambient light photosensitive sensor inside.

2. The electrochromic anti-glare rearview mirror assembly of claim 1, wherein, The circuit board is in an electrical connection relationship with the glare light photosensitive sensor or the ambient light photosensitive sensor.

3. The electrochromic anti-glare rearview mirror assembly of claim 1, wherein, The circuit board is in an electrical connection relationship with both the glare light photosensitive sensor and the ambient light photosensitive sensor.

4. The electrochromic anti-glare rearview mirror assembly of claim 1, wherein, The electrochromic mirror element comprises a first substrate, a second substrate, a sealing member and an electrochromic medium; the sealing member is circumferentially disposed between the outer peripheral regions of the first substrate and the second substrate to sealingly combine the first substrate and the second substrate with each other and define a cavity; The electrochromic medium is disposed in the cavity; the first substrate and the second substrate respectively have a transparent conductive film layer and a conductive reflective film layer deposited thereon; the transparent conductive film layer and the conductive reflective film layer are in contact with the electrochromic medium.

5. The electrochromic anti-glare rearview mirror assembly of claim 2, wherein, The electrochromic mirror element further comprises a first conductive clip and a second conductive clip; one end of the first conductive clip extends to the second surface of the first substrate to be in electrical contact with the transparent conductive film layer, and the other end of the first conductive clip extends to the fourth surface of the second substrate; one end of the second conductive clip extends to the third surface of the second substrate to be in electrical contact with the conductive reflective film layer, and the other end of the second conductive clip extends to the fourth surface of the second substrate.

6. The electrochromic anti-glare rearview mirror assembly of claim 2, wherein, The automobile interior rearview mirror assembly further comprises a frame; the frame extends in the circumferential direction of the electrochromic mirror element in the radial direction, one end of the frame in the longitudinal direction is connected with the mirror housing, and the other end of the frame extends to the first surface of the first substrate or extends to at least one of the edge surface of the first substrate and the edge surface of the second substrate.

7. The electrochromic anti-glare rearview mirror assembly of claim 2, wherein, The automobile interior rearview mirror assembly further comprises a carrier plate; the carrier plate is disposed on the fourth surface of the second substrate.

8. The electrochromic anti-glare rearview mirror assembly of claim 5, wherein, The opening end of the mirror housing extends to at least one of the edge surface of the first substrate and the edge surface of the second substrate.

9. The electrochromic anti-glare rearview mirror assembly of claim 4, wherein, The outer peripheral region of the first substrate is further provided with a shielding layer; the width of the shielding layer is greater than the width of the sealing member.

10. The electrochromic anti-glare rearview automotive mirror assembly of claim 4, wherein, The edge surface of the first substrate is a smooth transition round corner.

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