CN214540298U - Defogging membrane of adjusting luminance - Google Patents

Abstract

The utility model relates to a demisting light adjusting film, which comprises a first flexible transparent conducting layer, a PDLC liquid crystal layer, a second flexible transparent conducting layer and a heat conducting layer which are sequentially stacked; a first electrode is arranged at one end of the first flexible transparent conducting layer, a second electrode is arranged at one end of the second flexible transparent conducting layer, and the first electrode and the second electrode are respectively and electrically connected with a first power supply; and one end of the heat conducting layer is provided with a third electrode, the other end of the heat conducting layer is provided with a fourth electrode, and the third electrode and the fourth electrode are respectively and electrically connected with a second power supply. The utility model discloses can advance the heating defogging to the heat-conducting layer to adjust luminance to the dimming layer, application scope is wide, and simple to operate, better satisfying the user demand.

Description

Defogging membrane of adjusting luminance

Technical Field

The utility model relates to a membrane equipment technical field that adjusts luminance specifically is a defogging membrane of adjusting luminance.

Background

The main reason for fogging of window glass is caused by the temperature difference between the inside and outside of the vehicle. The temperature difference between the outside of the automobile mostly occurs in winter and the window is closed, and under the condition of no ventilation, the automobile window is easy to fog, because the contact temperature of the automobile window glass and the outside is low, and water vapor in the automobile is condensed on the glass to form fog. Meanwhile, in hot summer, when the automobile is parked outdoors, the temperature in the automobile can be greatly increased, and the light modulation film can be used for blocking ultraviolet rays and effectively insulating heat.

The light regulating film is one kind of electronic light controlling product and has the action principle of polymer dispersed liquid crystal, which is prepared through mixing low molecular liquid crystal and pre-polymer, polymerization to form micron level liquid crystal microdroplets dispersed homogeneously in polymer network, and utilizing the dielectric anisotropy of liquid crystal molecule to obtain material with electrooptical response characteristic. Under the condition of no external voltage, a regular electric field cannot be formed between the films, the optical axis orientation of the liquid crystal particles is random and is in a disordered state, and the film is opaque or semitransparent. When an external voltage is applied, the optical axes of the liquid crystal molecules are aligned perpendicular to the surface of the film, i.e., in line with the direction of the electric field. The ordinary refractive index between the particles is substantially matched with that of the polymer, no obvious interface is formed, and a substantially uniform medium is formed, so that the incident light can not be scattered, and the film is transparent. Therefore, PDLC (polymer dispersed liquid crystal) has optical switching characteristics under the drive of an applied electric field.

The light adjusting film is applied to the fields of electronic curtains, advertisement multimedia, automobile films, bathrooms, intelligent furniture and the like, and has wide application. At present, most membrane of adjusting luminance required voltage when the circular telegram is great, and the energy consumption is great, also endangers user's personal safety easily if breaking down, and the membrane of adjusting luminance that most membrane of adjusting luminance used is ITO transparent film, and ITO film texture is more fragile, and the pliability is relatively poor, and current membrane of adjusting luminance when meetting great temperature variation, and the glass face can produce the one deck steam, brings the inconvenience for the user.

Disclosure of Invention

In order to solve the problem, the utility model discloses a technical scheme: a demisting light adjusting film comprises a first flexible transparent conducting layer, a PDLC (polymer dispersed liquid crystal) liquid crystal layer, a second flexible transparent conducting layer and a heat conducting layer which are sequentially stacked; a first electrode is arranged at one end of the first flexible transparent conducting layer, a second electrode is arranged at one end of the second flexible transparent conducting layer, and the first electrode and the second electrode are respectively and electrically connected with a first power supply; and one end of the heat conducting layer is provided with a third electrode, the other end of the heat conducting layer is provided with a fourth electrode, and the third electrode and the fourth electrode are respectively and electrically connected with a second power supply.

Preferably, the first power supply is a power supply controller, and more preferably, the first power supply adopts an alternating current controller.

Preferably, the second power source is a solid-state battery.

Further, an adhesive layer for adhering to the surface of the substrate is further arranged below the heat conduction layer, and preferably, the adhesive layer can be an OC adhesive layer.

Further, the first flexible transparent conductive layer and the second flexible transparent conductive layer are nano silver conductive layers.

Further, the heat conduction layer is a nano silver wire heat conduction layer.

Further, the first power supply is an alternating current power supply, and the voltage is 0-30V.

Further, the second power supply is a direct current power supply, and the voltage is 12-20V.

Further, the thickness of the heat conduction layer is 50 +/-5 microns.

The utility model has the advantages that:

1. the utility model can realize the functions of light adjustment and defogging by arranging the transparent conducting layer and the heat conducting layer, and the first power supply and the second power supply are respectively used for controlling, so that the functions of light adjustment and defogging are not influenced and can be adjusted as required; the utility model discloses a defogging membrane of adjusting luminance has that the circular telegram is transparent, and the outage is atomized, separation ultraviolet ray and thermal-insulated effect.

2. The utility model discloses a nanometer silver is as the conducting layer, can effectively insulate against heat, does benefit to the PDLC membrane of adjusting luminance and reduces driving voltage when becoming transparent state from fog state, and the nanometer silver membrane has the reflex action to the infrared light, makes PDLC liquid crystal directional arrangement through plus electric field for light sees through, and the power failure state, PDLC liquid crystal are irregular arrangement, and light can't see through, plays the effect of good protection privacy.

3. The utility model discloses a nanometer silver line material, the resistance value is low, has very high electric conductivity, and nanometer silver line has higher thermal stability and electric stability, carries out the defogging through heating nanometer silver line, prevents that the difference in temperature from causing water smoke to condense.

4. The utility model discloses a mode of low voltage low current can reach corresponding defogging effect, high-efficient safety when pressurizeing to 18V.

Drawings

Fig. 1 is a schematic view of a defogging and dimming film structure provided by the present invention;

fig. 2 is a schematic view of a control structure of a defogging and dimming film provided by the present invention;

reference numerals in the drawings indicate:

1-a first flexible transparent conducting layer, 11-a first electrode, 2-a PDLC liquid crystal layer, 3-a second flexible transparent conducting layer, 31-a second electrode, 4-a heat conducting layer, 41-a third electrode, 42-a fourth electrode and 5-an adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and fig. 2, the defogging and dimming film includes a first flexible transparent conductive layer 1, a PDLC liquid crystal layer 2, a second flexible transparent conductive layer 3, and a heat conductive layer 4, which are sequentially stacked; a first electrode 11 is arranged at one end of the first flexible transparent conducting layer 1, a second electrode 31 is arranged at one end of the second flexible transparent conducting layer 3, and the first electrode 11 and the second electrode 31 are respectively and electrically connected with a first power supply; the heat conducting layer 4 is provided with a third electrode 41 at one end and a fourth electrode 42 at the other end, and the third electrode 41 and the fourth electrode 42 are respectively electrically connected with a second power supply.

The utility model can realize the functions of light adjustment and defogging by arranging the transparent conducting layer and the heat conducting layer, and the first power supply and the second power supply are respectively used for controlling, so that the functions of light adjustment and defogging are not influenced and can be adjusted as required; the utility model discloses a defogging membrane of adjusting luminance has that the circular telegram is transparent, and the outage is atomized, separation ultraviolet ray and thermal-insulated effect.

In a specific embodiment of the utility model, the first power supply can adopt alternating current, effectively reduces the driving voltage, and adopts a power supply controller and an inverter device for control; the second power supply adopts direct current, uses the solid-state battery to control output voltage, guarantees that the condition of low-voltage current makes the heat-conducting layer generate heat, guarantees safety.

The utility model provides a 4 below of heat-conducting layer still are equipped with adhesive layer 5 that is used for laminating basement surface, and adhesive layer 5 adopts OC glue film, photoresist etc. and the shape of defogging membrane of adjusting luminance is the rectangle, and it should be understood that the membrane of adjusting luminance of defogging can be cut out into other standard shapes and nonstandard shape according to actual need, supplies the better use of user.

The utility model provides a flexible transparent conducting layer 1 of first flexible transparent conducting layer and flexible transparent conducting layer 3 of second are the nanometer silver conducting layer, adopt the nanometer silver conducting layer of low, the high light transmittance of resistance as first flexible transparent conducting layer 1 and the flexible transparent conducting layer 3 of second, have the effect of good reflection to the infrared light, have good thermal-insulated effect, be favorable to making PDLC membrane of adjusting luminance reduce driving voltage when becoming transparent state from the fog state, improve the on-state transmissivity, reduce the on-state haze.

The utility model provides a heat-conducting layer 4 is the nanometer silver heat-conducting layer, and the nanometer silver resistance is low, has very high electric conductivity, and the nanometer silver line hardly hinders to the light, has very high light penetrability, and the nanometer silver line has higher thermal stability and electric stability, and under the state that the temperature rose, its electric stability can be guaranteed.

The first power supply in the utility model is an alternating current power supply, the voltage is 0-30V, and the alternating current is adopted to control the voltage. In one embodiment of the present invention, when the voltage is controlled to 10-15V, the transmittance of the light-adjusting film is 70-80%; when the voltage is controlled to be 15-25V, the transmittance of the light adjusting film is 80-85%; when the voltage is controlled to be 25-30V, the light transmittance of the light adjusting film is 85-90%; when the voltage is controlled to be about 30V, the light modulation film can reach about 90% of transmittance, the haze can be controlled to be about 5%, the PDLC light modulation film has good on-state transmittance under low driving voltage, and the PDLC light modulation film is efficient, energy-saving and safe.

The utility model provides a second power is DC power supply, and voltage is 12-20V, adopts the direct current, connects heat-conducting layer 4 through third electrode 41 and fourth electrode 42, and regulating voltage is to 18V, heaies up to 50 ℃, reaches the effect of defogging, high-efficient safety.

The utility model provides a heat-conducting layer thickness is 50 +/-5 mu m, and the heat-conducting layer does not set up in the layer inside of adjusting luminance, and the coating thickness is steerable, can effectively reduce the coating square resistance, reinforcing conductivity. Preferably, the thickness of the heat conducting layer is 50 microns, the optimal heating effect can be achieved, the good defogging effect is achieved, the efficiency is high, the safety is high, and the requirement can be met.

The utility model discloses in designed different voltage and electric current, stabilize the parallel test of the nanometer silver line heat-conducting layer circumstances of heating up after 15 minutes, embodiment 1 is the complex film nanometer silver resistance zone of heating that thickness is 45 μm, and embodiment 2 is the complex film nanometer silver resistance zone of heating that thickness is 50 μm, and relevant test data is as follows:

TABLE 1

The data in table 1 show that when a certain voltage and current are increased, the resistance heating layer in the composite film realizes a progressive heating effect, and the power consumption is low, so that the defogging effect is more remarkable.

The utility model provides a defogging membrane of adjusting luminance adopts the complex film structure, and wherein the layer of adjusting luminance has the thermal-insulated effect of adjusting luminance, is applied to the door window and uses, not only helps protecting the privacy, still can reduce the interior temperature of car, and does not influence the passenger and watch the scene, adopts nanometer silver resistance heat-conducting layer to heat and reaches the defogging effect, when the temperature difference changes greatly, can also keep good sight. The light modulation and defogging effects adopt a multilayer film structure and are respectively controlled, so that the user can reasonably select the light modulation and defogging effects according to the needs, and the use is more convenient and effective.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and the description only describe the principle of the present invention, and the present invention can be modified in various changes without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A defogging dimming film is characterized by comprising a first flexible transparent conducting layer, a PDLC (polymer dispersed liquid crystal) liquid crystal layer, a second flexible transparent conducting layer and a heat conducting layer which are sequentially stacked; a first electrode is arranged at one end of the first flexible transparent conducting layer, a second electrode is arranged at one end of the second flexible transparent conducting layer, and the first electrode and the second electrode are respectively and electrically connected with a first power supply; and one end of the heat conducting layer is provided with a third electrode, the other end of the heat conducting layer is provided with a fourth electrode, and the third electrode and the fourth electrode are respectively and electrically connected with a second power supply.

2. The defogging and dimming film of claim 1, wherein an adhesive layer for adhering to the surface of the substrate is further disposed below said heat conducting layer.

3. The defogging and dimming film of claim 1, wherein said first and second flexible transparent conductive layers are nanosilver conductive layers.

4. A defogging and dimming film according to claim 1, wherein said heat conducting layer is a silver nanowire heat conducting layer.

5. The defogging and dimming film of claim 1, wherein said first power source is an ac power source and has a voltage of 0-30V.

6. The defogging and dimming film of claim 1, wherein said second power source is a dc power source and has a voltage of 12-20V.

7. A defogging and dimming film according to claim 1, wherein said thermally conductive layer has a thickness of 50 ± 5 μm.

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