CN114895489A

CN114895489A - Vehicle window

Info

Publication number: CN114895489A
Application number: CN202210351170.9A
Authority: CN
Inventors: 郑楚爱; 王志明
Original assignee: Shenzhen Meilijia Technology Co ltd
Current assignee: Shenzhen Meilijia Technology Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-08-12
Anticipated expiration: 2042-04-02
Also published as: CN114895489B

Abstract

The application provides a vehicle window, which comprises a vehicle frame and dimming glass arranged on the vehicle frame, wherein the dimming glass comprises at least two dimming pieces formed by splicing; each light modulation piece comprises a first conducting layer, a liquid crystal layer and a second conducting layer which are sequentially stacked; the vehicle window further comprises a first heat-conducting piece, wherein the first heat-conducting piece is filled between the opposite side walls of the two light-adjusting pieces and is simultaneously attached to the side walls of the first conducting layer, the liquid crystal layer and the second conducting layer on the two adjacent light-adjusting pieces. Above-mentioned scheme is through filling first heat-conducting piece between the relative lateral wall of two adjacent light control pieces, can derive light control glass with the heat in the clearance, further reduces the temperature in the light control glass to in better adjusting luminance.

Description

Vehicle window

[ technical field ] A method for producing a semiconductor device

The application relates to the technical field of automobile parts, in particular to a car window.

[ background of the invention ]

With the development of society and the improvement of life quality of people, the number of vehicles is increasing. And the application and the requirement of the car window as the glasses of the car are also higher and higher. Especially in the weather with strong or weak sunlight, people often need to adjust the color of the vehicle window according to the brightness of light outside the vehicle window so as to correspondingly adjust the brightness in the vehicle body. The existing color-changing glass is generally provided with a liquid crystal layer between two conductive layers, and an electric field between the two conductive layers is changed by changing voltage between the two conductive layers, and the change of the electric field can cause the directional movement or rotation of liquid crystal molecules and dyeing molecules in the liquid crystal layer, so that the color or light guide rate of the liquid crystal layer is correspondingly changed, and the effect of adjusting the brightness is achieved. When the external ambient temperature is too high, such as at noon of three volt days, the temperature of the outer conductive layer is increased sharply because the external sunlight is too high and is directly irradiated on the outer conductive layer. Because the existing color-changing glass is formed by splicing a plurality of pieces of glass, when the temperature on the conducting layer is too high, the temperature is easily transferred into the liquid crystal layer of the color-changing glass from the gap between the two pieces of glass, thereby influencing the arrangement and arrangement direction of liquid crystal molecules and dyeing molecules in the liquid crystal layer and further influencing the adjustment of the light guide rate of the color-changing glass.

[ summary of the invention ]

In view of the above, it is desirable to provide a vehicle window capable of dissipating heat in a color-changing glass, so as to solve the above problems.

The embodiment of the application provides a vehicle window, which comprises a vehicle frame and dimming glass arranged on the vehicle frame, wherein the dimming glass comprises at least two dimming pieces formed by splicing;

each light modulation piece comprises a first conducting layer, a liquid crystal layer and a second conducting layer which are sequentially stacked;

the vehicle window further comprises a first heat-conducting piece, wherein the first heat-conducting piece is filled between the opposite side walls of the two light-adjusting pieces and is simultaneously attached to the side walls of the first conducting layer, the liquid crystal layer and the second conducting layer on the two adjacent light-adjusting pieces.

In at least one embodiment of the present application, the vehicle window further comprises a second heat-conducting member and a third heat-conducting member;

the second heat conducting piece is attached to the outer surfaces of the first conducting layers of two adjacent light adjusting pieces at the same time;

the third heat conducting piece is attached to the outer surfaces of the second conducting layers of two adjacent light adjusting pieces at the same time;

both ends of the first heat-conducting member are in contact with the second heat-conducting member and the third heat-conducting member, respectively.

In at least one embodiment of the present application, the vehicle window further comprises a fourth heat-conducting member;

the fourth heat conducting piece is arranged on the outer side face of the dimming glass in a surrounding mode, and the fourth heat conducting piece is in contact with the end portions of the second heat conducting piece and the third heat conducting piece.

In at least one embodiment of the present application, the fourth heat-conducting member has a heat-conducting surface disposed away from the light-adjusting member;

the length of the heat conducting surface is larger than or equal to the thickness from the outer side surface of the first conducting layer to the outer side surface of the second conducting layer along the thickness direction of the vehicle window.

In at least one embodiment of the present application, the first heat-conducting member, the second heat-conducting member, the third heat-conducting member, and the fourth heat-conducting member are made of a transparent heat-conducting material.

In at least one embodiment of the present application, the vehicle glazing further comprises a first glass ply and a second glass ply;

the first glass layer and the second glass layer are respectively laminated on the outer surfaces of the second heat-conducting piece and the third heat-conducting piece.

In at least one embodiment of the present application, a length of the heat-conducting surface is equal to a thickness between the first glass ply outer side surface and the second glass ply outer side surface in a thickness direction of the vehicle window.

In at least one embodiment of the present application, the second conductive layer includes a plurality of conductive blocks disposed in parallel, and each of the conductive blocks corresponds to the liquid crystal layer and the first conductive layer to form a plurality of different color-adjusting regions.

In at least one embodiment of this application, the door window still includes locate touch area on the car frame, with touch area and a plurality of the conducting block with the control module of first conducting layer electricity connection to through touching touch area individual control is a plurality of the luminousness of mixing of colors region.

In at least one embodiment of the present application, the vehicle window further comprises an optical sensor disposed on an outer side surface of the vehicle frame;

the light sensor is electrically connected with the control module to detect ambient light and control the light transmittance of the plurality of color mixing areas.

The application has at least the following beneficial effects:

1. the first heat conducting piece is filled between the opposite side walls of the two adjacent dimming pieces, so that the first heat conducting piece can be plugged in the gap between the two adjacent dimming pieces, the external heat is prevented from entering the gap between the two dimming pieces, the heat of the liquid crystal layer is improved, and the problem of dimming disorder caused by the irregular diffusion or rotation of liquid crystal molecules and dyeing molecules in the liquid crystal layer due to overhigh temperature of the liquid crystal layer is avoided. And the heat conducting piece is arranged at the gap between two adjacent dimming pieces, so that heat in the gap can be led out of the dimming glass, and the temperature in the dimming glass is further reduced, thereby facilitating better dimming.

2. The second heat conducting piece is attached to the outer surface of the first conducting layer of the two adjacent light adjusting pieces, and the first heat conducting piece is connected with the second heat conducting piece, so that when external sunlight irradiates the outer surface of the car window, the temperature of the outer surface of the first conducting layer can be reduced, and the problem that the liquid crystal layer stacked and arranged at the position of the first conducting layer is influenced by overheating is solved. And the third heat conducting piece is attached to the outer surface of the second conducting layer of the two adjacent dimming pieces, so that the heat exchange between the temperature in the vehicle and the dimming glass can be realized, and the time for cooling the dimming glass can be reduced when the vehicle is internally provided with an air conditioner for cooling, so that the dimming glass can quickly reach the working temperature, the response is faster, and the adjustment is faster.

3. Through setting up the fourth heat-conducting piece at dimming glass's lateral surface to make the length that deviates from dimming piece along the width direction of door window be greater than or equal to the thickness between first conducting layer lateral surface to the second conducting layer lateral surface, thereby increase heat radiating area, with the radiating efficiency who improves in the dimming glass.

4. Through setting up the touch area and setting up light sensor to make dimming glass can satisfy manual and automatic regulation mode simultaneously, increase dimming glass's the variety of operation, in order to satisfy different regulation demands.

[ description of the drawings ]

Fig. 1 is a schematic perspective view of a vehicle window in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the light control glass shown in fig. 1.

Fig. 3 is a cross-sectional view of the light control glass shown in fig. 2.

[ description of main element symbols ]

100. A vehicle window; 10. a vehicle frame; 20. a light control glass; 21. a light-adjusting member; 211. a first conductive layer; 212. a liquid crystal layer; 213. a second conductive layer; 2131. a conductive block; 30. a first heat-conducting member; 40. a second heat-conducting member; 50. a third heat-conducting member; 60. a fourth heat-conducting member; 61. a heat conducting surface; 70. a first glass layer; 80. a second glass layer; 90. a touch area.

[ detailed description ] embodiments

The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

According to the scheme, the first heat conducting piece is filled between the two adjacent side walls opposite to the dimming piece, so that the first heat conducting piece can be plugged in the gap between the two adjacent dimming pieces, the external heat is prevented from entering the gap between the two dimming pieces, the heat of the liquid crystal layer is improved, and the problem of dimming disorder caused by the fact that liquid crystal molecules and dyeing molecules in the liquid crystal layer are irregularly diffused or rotate due to overhigh temperature of the liquid crystal layer is avoided. And the heat conducting piece is arranged at the gap between two adjacent dimming pieces, so that heat in the gap can be led out of the dimming glass, and the temperature in the dimming glass is further reduced, thereby facilitating better dimming.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, 2 and 3, the present application provides a vehicle window 100, which includes a vehicle frame 10 and a light control glass 20 disposed on the vehicle frame 10. The light control glass 20 is disposed on the frame 10 and capable of moving up and down.

Referring to fig. 2, further, the light control glass 20 includes at least two light control members 21 formed by splicing, so that the light control glass 20 is formed by splicing at least two light control glasses 20, and the light transmittance of the light control member 21 in a specific area on the light control glass 20 is controlled by controlling one or more specific light control members 21, thereby realizing different light transmittances to adapt to different weathers. Preferably, the light adjusting member 21 is a flexible film having a color change or capable of changing its light transmittance.

Referring to fig. 2 and fig. 3, further, each of the light modulators 21 includes a first conductive layer 211, a liquid crystal layer 212 and a second conductive layer 213 stacked in sequence, so that the liquid crystal layer 212 presents different colors, i.e. different transmittances, by applying different voltages to the first conductive layer 211 and the second conductive layer 213, thereby changing the amount of light transmitted to adjust the brightness of the door light.

Specifically, a plurality of liquid crystal molecules and dye molecules are disposed in the liquid crystal layer 212 and are perpendicular to the space between the first conductive layer 211 and the second conductive layer 213, and when light is irradiated onto the first conductive layer 211 or the second conductive layer 213, the light directly passes through the plurality of liquid crystal molecules and dye molecules and is emitted into the vehicle from the opposite second conductive layer 213 or the first conductive layer 211. When a voltage is applied across the first conductive layer 211 and the second conductive layer 213, the voltage creates an electric field between the first conductive layer 211 and the second conductive layer 213. The electric field drives the liquid crystal molecules and dye molecules between the first conductive layer 211 and the second conductive layer 213 to rotate until the liquid crystal molecules and the dye molecules are parallel to the first conductive layer 211 and the second conductive layer 213, and at this time, when light irradiates the first conductive layer 211 or the second conductive layer 213, the light directly irradiates the side surfaces of a plurality of dye molecules, penetrates through the dye molecules and enters the vehicle through the opposite second conductive layer 213 or the first conductive layer 211, so that the color of incident light is changed. Further, when the voltage applied to the first conductive layer 211 or the second conductive layer 213 is different, the electric field formed between the first conductive layer 211 and the second conductive layer 213 is also different in magnitude, so that the number of dye molecules turned over is different, thereby allowing the liquid crystal layer 212 to show different colors. When the color that the liquid crystal layer 212 appeared is darker, the light that sees through was darker, and when the color that the liquid crystal layer 212 appeared was lighter, the light that sees through was then brighter to can adjust the light in the car, avoid light too strong or too dark and lead to the problem of the interior field of vision restriction of car.

Further, since the intensity deviation of the light at different time periods is different, the light at a specific angle is stronger and the light at the specific angle is darker, in order to adjust the local light of the liquid crystal layer 212 to achieve uniform and proper illumination in the vehicle, the second conductive layer 213 includes a plurality of conductive blocks 2131 arranged in parallel. Each conductive block 2131 is used for bearing voltage independently to display corresponding color, that is, in order to ensure uniform light rays emitted into the vehicle, a larger voltage is applied to the conductive block 2131 at a position with stronger light rays, so that the color of the liquid crystal layer 212 at the position with stronger light rays is darker, thereby reducing the intensity of the light rays which penetrate through the liquid crystal layer 212 and irradiate the vehicle, and a smaller voltage is applied to the conductive block 2131 at a position with weaker light rays, so that the liquid crystal layer 212 at the position is lighter, thereby passing more light rays, and achieving the effect of uniform indoor light rays.

The light control glass 20 adjusts the color and transmittance of the light control member 21 by changing the movement and rotation of the liquid crystal molecules and the dye molecules in the liquid crystal layer 212, and when the temperature of the liquid crystal layer 212 is increased due to an excessive ambient temperature, the liquid crystal molecules and the dye molecules in the liquid crystal layer 212 irregularly move or rotate under the influence of the temperature. When a voltage is subsequently applied to the first conductive layer 211 and the plurality of conductive blocks 2131, the electric field generated by the voltage in the liquid crystal layer 212 drives the liquid crystal molecules and the dye molecules in the liquid crystal layer 212 to correspondingly move and rotate, and then the liquid crystal molecules and the dye molecules generate an arrangement mode inconsistent with the expected arrangement mode, thereby affecting the normal dimming.

To prevent temperature effects on the liquid crystal molecules and dye molecules in the liquid crystal layer 212, the vehicle window 100 further includes a first heat conductive member 30. The first heat conducting member 30 is filled between the opposite sidewalls of the two light modulating members 21, and is attached to the sidewalls of the first conductive layer 211, the liquid crystal layer 212, and the second conductive layer 213 on two adjacent light modulating members 21. So that the first heat conducting member 30 can be sealed in the gap between two adjacent light modulation members 21, and prevent the external heat from entering the gap between two light modulation members 21 to increase the heat of the liquid crystal layer 212, thereby avoiding the problem of light modulation disorder caused by irregular diffusion or rotation of liquid crystal molecules and dye molecules in the liquid crystal layer 212 due to overhigh temperature of the liquid crystal layer 212. And the heat conducting member is arranged at the gap between two adjacent light adjusting members 21, so that the heat in the gap can be conducted out of the light adjusting glass 20, and the temperature in the light adjusting glass 20 is further reduced, thereby facilitating better light adjustment.

Further, the vehicle window 100 further includes a second heat-conducting member 40 and a third heat-conducting member 50. The second heat conduction member 40 is attached to the outer surfaces of the first conductive layers 211 of two adjacent light modulation members 21, the third heat conduction member 50 is attached to the outer surfaces of the second conductive layers 213 of two adjacent light modulation members 21, and two ends of the first heat conduction member 30 contact the second heat conduction member 40 and the third heat conduction member 50, respectively. When the external sunlight irradiates on the outer surface of the vehicle window 100, the temperature of the outer surface of the first conductive layer 211 can be reduced, and the problem that the temperature of the liquid crystal layer 212 arranged in a stacked mode is affected due to overheating at the position of the first conductive layer 211 is solved. And the third heat conducting member 50 is attached to the outer surface of the second conductive layer 213 of two adjacent light modulation members 21, so that the heat exchange between the temperature in the vehicle and the light modulation glass 20 can be realized, and the time for cooling the light modulation glass 20 can be reduced when the vehicle is internally provided with an air conditioner for cooling, so that the light modulation glass 20 can quickly reach the working temperature, and the response and the adjustment are faster.

Still further, the vehicle window 100 further includes a fourth heat-conducting member 60. The fourth heat conduction member 60 is disposed around the outer side surface of the light control glass 20, and the fourth heat conduction member 60 contacts with the ends of the second heat conduction member 40 and the third heat conduction member 50. So that the heat of the first heat-transfer member 30, the second heat-transfer member 40, and the third heat-transfer member 50 can be dissipated from the fourth heat-transfer member 60.

Specifically, the fourth heat conduction member 60 has a heat conduction surface 61 away from the light modulation member 21, so that when heat is transferred to the fourth heat conduction member 60, the heat can be dissipated from the heat conduction surface 61. And the arrangement of the heat-conducting surface 61 increases the contact area of the fourth heat-conducting member 60 with the external air, thereby improving the heat dissipation efficiency. Further, in the thickness direction of the vehicle window 100, the length of the heat conduction surface 61 is greater than or equal to the thickness from the outer side surface of the first conductive layer 211 to the outer side surface of the second conductive layer 213, so that the area of the heat conduction surface 61 is further increased, and the heat dissipation efficiency is further improved.

Preferably, the first heat conduction member 30, the second heat conduction member 40, the third heat conduction member 50 and the fourth heat conduction member 60 are made of transparent heat conduction materials, such as transparent heat conduction solid silica gel, so that when the temperature is diffused through the first heat conduction member 30, the second heat conduction member 40, the third heat conduction member 50 and the fourth heat conduction member 60, the light is not obstructed from passing through, and the problem that the sight line of people in the vehicle is influenced by the boundary of the light shielded by the heat conduction materials when the heat conduction materials between the two light-adjusting members 21 are made of non-transparent materials is prevented.

In order to increase the rigidity of the light control glass 20 to prevent the light control glass 20 from being damaged when the light control glass 20 is hit inside or outside the vehicle, the window 100 further includes a first glass layer 70 and a second glass layer 80. The first glass layer 70 and the second glass layer 80 are respectively pressed on the outer surfaces of the second heat-conducting member 40 and the third heat-conducting member 50, so that the second heat-conducting member 40 and the third heat-conducting member 50 are pressed tightly to prevent the second heat-conducting member 40 and the third heat-conducting member 50 from being exposed; secondly, the problem that the light adjusting member 21 is damaged due to the fact that the foreign object directly impacts the light adjusting member 21 can be prevented. Preferably, the first glass layer 70 and the second glass layer 80 are tempered glass.

In one embodiment, the length of the heat-conducting surface 61 in the thickness direction of the vehicle window 100 is equal to the thickness between the outer side of the first glass layer 70 and the outer side of the second glass layer 80, that is, the fourth heat-conducting member 60 just covers the end portions of the first glass layer 70 and the second glass layer 80, and the fourth heat-conducting member 60 does not protrude relative to the first glass layer 70 and the second glass layer 80 in the thickness direction of the vehicle window 100, so that the material consumption is reduced.

In another embodiment, the length of the heat conducting surface 61 may also be greater than the thickness from the outer side of the first glass layer 70 to the outer side of the second glass layer 80 along the thickness direction of the vehicle window 100, that is, two ends of the fourth heat conducting member 60 are wrapped on the first glass layer 70 and the second glass layer 80, so that the fourth heat conducting member 60 can be more firmly fixed on the first glass layer 70 and the second glass layer 80, thereby preventing the fourth heat conducting member 60 from being separated due to collision of the fourth heat conducting member 60. And further, the heat dissipation area is increased, and the heat dissipation efficiency is improved.

The window 100 further includes a touch area 90 disposed on the frame 10, and a control module (not shown) electrically connected to the touch area 90, the plurality of conductive blocks 2131 and the first conductive layer 211, so as to individually control the light transmittance of the plurality of color modulation areas by touching the touch area 90. Preferably, the control module is a central processing unit.

Preferably, the touch area 90 is provided with a touch sensor (not shown), and a plane where the touch sensor is located is electrically connected to the plurality of conductive blocks 2131 correspondingly, so that the voltage on the corresponding conductive block 2131 is controlled by touching a specific part of the touch sensor, and the color or the light transmittance of the specific color matching area is adjusted, thereby achieving the effect of manually controlling the color change of the vehicle window 100.

Further, the vehicle window 100 further includes a light sensor (not shown) disposed outside the vehicle window 100, the light sensor is electrically connected to the control module, so that when the ambient light with different intensities from the outside irradiates on the light sensor, the light sensor detects corresponding light intensity, and the control module is matched to control the voltage on the corresponding conductive block 2131, thereby adjusting the color or light transmittance of the corresponding area, and achieving the effect of automatic dimming. In the above manner, by setting the touch area 90 and setting the optical sensor, the light control glass 20 can simultaneously satisfy manual and automatic adjustment manners, and the diversity of the operation of the light control glass 20 is increased to satisfy different adjustment requirements.

According to the scheme, the first heat conducting piece 30 is filled between the opposite side walls of the two adjacent light modulation pieces 21, so that the first heat conducting piece 30 can be sealed at the gap between the two adjacent light modulation pieces 21, the external heat is prevented from entering the gap between the two light modulation pieces 21, the heat of the liquid crystal layer 212 is improved, and the problem that the light modulation disorder is influenced due to the fact that liquid crystal molecules and dyeing molecules in the liquid crystal layer 212 are irregularly diffused or rotate due to the fact that the temperature of the liquid crystal layer 212 is too high is avoided. And the heat conducting member is arranged at the gap between two adjacent light adjusting members 21, so that the heat in the gap can be conducted out of the light adjusting glass 20, and the temperature in the light adjusting glass 20 is further reduced, thereby facilitating better light adjustment.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims.

Claims

1. A vehicle window comprises a vehicle frame and dimming glass arranged on the vehicle frame, and is characterized in that the dimming glass comprises at least two dimming pieces formed by splicing;

2. The window of claim 1, further comprising a second thermally conductive member and a third thermally conductive member;

3. The vehicle window of claim 2, further comprising a fourth thermally conductive member;

4. The vehicle window of claim 3, wherein the fourth thermal conduction member has a thermal conduction surface disposed away from the light modulating member;

5. The window of claim 4, wherein the first, second, third and fourth thermally conductive members are formed of a transparent thermally conductive material.

6. The vehicle window of claim 4, further comprising a first glass ply and a second glass ply;

7. The vehicle window of claim 6, wherein the thermally conductive surface has a length, in a thickness direction of the vehicle window, equal to a thickness between the first glass ply exterior side and the second glass ply exterior side.

8. The vehicle window of claim 1, wherein the second conductive layer comprises a plurality of conductive bumps arranged in parallel, each conductive bump corresponding to the liquid crystal layer and the first conductive layer to form a plurality of different toning areas.

9. The vehicle window of claim 8, further comprising a touch area disposed on the frame, and a control module electrically connected to the touch area and the plurality of conductive bumps and the first conductive layer, for individually controlling the transmittance of the plurality of tinting areas by touching the touch area.

10. The window of claim 9, further comprising an optical sensor disposed on an outer side of the frame;