Dimming film structure and automobile skylight

Abstract

The utility model relates to the technical field of dimming films, in particular to a dimming film structure and an automobile skylight. The light adjusting film structure comprises a light adjusting film, a PC board and an attaching assembly, the light adjusting film is arranged on the PC board, and the PC board is pasted and fixed to skylight glass through the attaching assembly; the dimming film is provided with an electrode, and the electrode is electrically connected with a vehicle-mounted circuit. After the dimming film structure provided by the utility model is fixed on the skylight glass, a certain gap is formed between the dimming film and the skylight glass, so that the heat insulation performance is improved compared with a direct pasting type film structure. And power can be supplied to the dimming film through a vehicle-mounted circuit, so that the dimming function of transparent power-on and power-off fog is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of dimming films, in particular to a dimming film structure and an automobile sunroof. Background Technique

[0002] The dimming film is obtained by coating a polymer dispersed liquid crystal layer between two layers of ITO-PET films and then curing with light. Electrodes are respectively made on the upper and lower conductive layers of the dimming film. When the dimming film is powered on, the film becomes transparent, and when it is not powered on, the film is in a foggy state. The dimming film can be sandwiched between two layers of glass to make dimming glass, which is applied to places such as automobile sunroofs and glass curtain walls.

[0003] At present, some new energy vehicles do not have an in-built dimming system or an electric sunshade curtain when leaving the factory. In summer, the sun shines directly, resulting in extremely high temperature inside the vehicle and affecting the driving experience. The existing directly pasted dimming film is directly pasted on the sunroof glass, and the heat insulation performance is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a dimming film structure and an automobile sunroof to alleviate the problem that the existing directly pasted dimming film is directly pasted on the sunroof glass and has poor heat insulation performance.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model lies in:

[0006] In the first aspect, the utility model provides a dimming film structure, including: a dimming film, a PC board and a fitting component. The dimming film is arranged on the PC board, and the PC board is fixedly pasted on the sunroof glass through the fitting component;

[0007] The dimming film is provided with electrodes, and the electrodes are electrically connected to the vehicle-mounted circuit.

[0008] Furthermore, the PC board is provided with a positioning area cut along the circumference, and the dimming film is arranged in the positioning area.

[0009] Furthermore, the dimming film is fixedly pasted on the PC board through the first magic tape.

[0010] Furthermore, the PC board is provided with an arc structure at the corner, and the fitting component includes a tape arranged on the arc structure.

[0011] Furthermore, the fitting component further includes a second magic tape arranged on the straight edge of the PC board.

[0012] Furthermore, the fitting component further includes a magnetic sticker or an acrylic buckle arranged on the straight edge of the PC board.

[0013] Further, a sealing strip for covering the electrodes is provided along the circumferential direction of the outer edge of the dimming film.

[0014] Further, the electrode is connected with an electrode lead wire. One end of the electrode lead wire away from the electrode is electrically connected to an electric control unit. One end of the electric control unit is connected to a vehicle cigarette lighter, and the other end is connected to a voice switch or a button switch.

[0015] Further, the electrode lead wire passes through the interior trim of the vehicle B-pillar and is electrically connected to the electric control unit.

[0016] In a second aspect, the present invention provides an automobile sunroof, including the dimming film structure described in the first aspect.

[0017] The present invention at least brings the following beneficial effects:

[0018] Since the present invention provides a dimming film structure, including: a dimming film, a PC board and a bonding assembly. The dimming film is disposed on the PC board, and the PC board is fixedly adhered to the sunroof glass through the bonding assembly; the dimming film is provided with electrodes, and the electrodes are electrically connected to the vehicle-mounted circuit.

[0019] The dimming film structure supports the dimming film through the PC board and then is integrally fixed on the sunroof glass. The PC board has a high light transmittance and has little influence on the light transmittance of the dimming film. It is easy to align when installing the dimming film. Even if the bonding is poor, it can be reworked, which is convenient for disassembly, and the dimming film structure will not be damaged after disassembly. There is a certain gap between the dimming film and the sunroof glass after the dimming film structure is fixed on the sunroof glass. Compared with the directly pasted film structure, the heat insulation performance is improved. Moreover, the electrodes of the dimming film are electrically connected to the vehicle-mounted circuit, and the dimming film can be powered through the vehicle-mounted circuit, so as to realize the dimming function of being transparent when powered on and foggy when powered off.

[0020] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given below in conjunction with the accompanying drawings and are described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the related technical solutions. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the dimming film structure provided by the embodiment of the present invention;

[0023] Figure 2Schematic circuit diagram of the dimming film provided by the embodiment of the present utility model.

[0024] Icon:

[0025] 100 - Dimming film; 110 - Electrode; 200 - PC board; 300 - Sunroof glass; 410 - Tape; 420 - Second magic tape; 500 - Edge sealing strip; 600 - Electrode lead; 700 - Electric control; 800 - Vehicle cigarette lighter; 900 - Voice switch. Detailed implementation manners

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Physical quantities in the formulas, if not separately marked, should be understood as the basic quantities of the basic units of the International System of Units, or the derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0029] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] The following will describe in detail some embodiments of the present utility model with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other. Among them, Figure 1 is a schematic diagram of the dimming film structure provided by the embodiment of the present utility model; Figure 2 is a circuit schematic diagram of the dimming film provided by the embodiment of the present utility model.

[0032] Embodiment 1

[0033] When some existing new energy vehicles leave the factory, there is no built-in dimming system in the sunroof and no electric sunshade is configured. In summer, the sun shines directly, resulting in extremely high temperature inside the vehicle and affecting the driving experience. The existing directly pasted dimming film is directly pasted on the sunroof glass, and the heat insulation performance is poor.

[0034] In view of this, the embodiment of the present utility model provides a dimming film structure, including: a dimming film 100, a PC board 200, and a bonding assembly. The dimming film 100 is disposed on the PC board 200, and the PC board 200 is fixedly pasted on the sunroof glass 300 through the bonding assembly; the dimming film 100 is provided with an electrode 110, and the electrode 110 is electrically connected to the vehicle-mounted circuit.

[0035] The dimming film structure supports the dimming film 100 through the PC board 200 and is then integrally fixed on the sunroof glass 300. The PC board 200 has a high transmittance and has little influence on the transmittance of the dimming film 100. It is easy to align when installing the dimming film 100. Even if the bonding is poor, it can be reworked, which is convenient for disassembly, and the dimming film structure will not be damaged after disassembly. After the dimming film structure is fixed on the sunroof glass 300, there is a certain gap between the dimming film 100 and the sunroof glass 300. Compared with the directly pasted film structure, the heat insulation performance is improved. Moreover, the electrode 110 of the dimming film 100 is electrically connected to the vehicle-mounted circuit, and the dimming film 100 can be powered through the vehicle-mounted circuit, thereby realizing the dimming function of being transparent when powered on and foggy when powered off.

[0036] In an optional manner of this embodiment, the PC board 200 is provided with a positioning area cut along the circumference, and the dimming film 100 is disposed in the positioning area.

[0037] The dimming film 100 is disposed on the PC board 200. The dimensions of the length and width of the dimming film 100 are 10 mm smaller than those of the length and width of the PC board 200. When manufacturing the PC board 200, a region for positioning the dimming film 100, i.e., a positioning region, is cut around its surface. During installation, the dimming film 100 is aligned with the positioning region on the PC board 200.

[0038] In an alternative embodiment of the present example, the dimming film 100 is fixedly adhered to the PC board 200 by the first magic tape.

[0039] After the dimming film 100 is aligned with the positioning region on the PC board 200, the rough surface of the first magic tape with adhesive is used to adhere and fix the dimming film 100 on the PC board 200. After pasting, a hot air blower can be used to heat the area where the first magic tape is adhered to increase the adhesion of the adhesive. Of course, other methods can also be used to adhere and fix the dimming film 100 on the PC board 200, such as using glue or adhesive strips, etc., which will not be elaborated here.

[0040] In an alternative embodiment of the present example, the PC board 200 is provided with an arc structure at the corners, and the fitting assembly includes a tape 410 disposed on the arc structure.

[0041] Please refer to Figure 1 , the PC board 200 is provided with arc structures at all four corners, and tapes 410 are used for pasting and fixing at all four arc structures. The tape 410 is preferably a 3M tape 410, which can further increase the adhesion between the dimming film structure and the skylight glass 300.

[0042] In an alternative embodiment of the present example, the fitting assembly further includes a second magic tape 420 disposed on the straight edge of the PC board 200.

[0043] Please refer to Figure 1 , the four straight edges of the PC board 200 are all provided with second magic tapes 420, and the hook surfaces of the second magic tapes 420 are adhered to the four straight edges of the edge of the skylight glass 300. After heating with a hot air blower, the dimming film structure is integrally aligned and adhered to the skylight glass 300. When adhering, the four straight edges are pasted first, and then the release films of the tapes 410 at the four arc structures are torn off and pasted on the skylight glass 300.

[0044] In an alternative embodiment of the present example, the fitting assembly further includes a magnetic sticker or an acrylic buckle disposed on the straight edge of the PC board 200.

[0045] In this embodiment, it is preferred to use the second magic tape 420 to fix the dimming film structure and the skylight glass 300. In addition, magnetic stickers or acrylic buckles can also be used for substitution, which can also firmly fix the dimming film structure and the skylight glass 300.

[0046] In an alternative embodiment of the present example, a sealing strip 500 for covering the electrode 110 is disposed along the circumferential direction of the outer edge of the dimming film 100.

[0047] Please refer to Figure 1 . After the dimming film structure is attached to the sunroof glass 300, a sealing strip 500 needs to be pasted along the edge of the dimming film 100 to cover the electrode 110 of the dimming film 100.

[0048] Preferably, in the present example, the transmittance of the dimming film 100 is 81% ± 2% when powered off, the haze is 100%, the transmittance is 89% ± 1% when powered on at 36V voltage, and the haze is 4% ± 0.5%. The transmittance of the PC board 200 is ≥ 90% and the thickness is 1.5 mm. The specification of the second magic tape 420 is 15 mm × 33 m, and the length can be cut according to the size of the dimming film structure. The width range of the sealing strip 500 is 25 - 30 mm.

[0049] In an alternative embodiment of the present example, the electrode 110 is connected to an electrode lead 600. One end of the electrode lead 600 away from the electrode 110 is connected to the electronic control 700. One end of the electronic control 700 is connected to the vehicle cigarette lighter 800, and the other end is connected to the voice switch 900 or the button switch. The electrode lead 600 passes through the interior trim of the vehicle B-pillar and is connected to the electronic control 700.

[0050] Please refer to Figure 2 . The front sunroof and the rear sunroof are respectively above and below. After the dimming film structure is attached, the electrode lead 600 is led out downward from the interior trim of the vehicle B-pillar on the driver's side and connected to the electronic control 700 placed under the driver's seat. One end of the electronic control 700 takes power from the vehicle cigarette lighter 800 in the armrest box, and the other end is connected to the voice switch 900 or the button switch. The on / off state of the dimming film 100 can be controlled by voice or button remote control. When leading the wire, only the interior trim shell of the driver's B-pillar needs to be removed, and the other side takes power from the vehicle cigarette lighter 800, without damaging the vehicle structure.

[0051] The present example provides a dimming film structure for post-installation on an automotive sunroof. First, the dimming film 100 is pasted and fixed on a PC board 200 with high transmittance, certain hardness and low density. Then, the entire dimming film structure is pasted and fixed on the sunroof glass 300. The dimming film structure is powered by the vehicle circuit to achieve the function of being transparent when powered on and foggy when powered off, so as to achieve the effect of dimming the automotive sunroof.

[0052] Embodiment Two

[0053] The embodiment of the present utility model provides an automotive sunroof, including the dimming film structure of Embodiment One. Since the automotive sunroof includes all the structures of the dimming film structure, it has all the beneficial effects of Embodiment One, which will not be elaborated here.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dimming film structure, characterized in that: include: A dimming film, a PC board and a bonding component, wherein the dimming film is arranged on the PC board, and the PC board is bonded and fixed to the skylight glass through the bonding component; The dimming film is provided with electrodes, and the electrodes are electrically connected to the vehicle-mounted circuit.

2. The dimming film structure according to claim 1, characterized in that: The PC board is cut along the circumference to form a positioning area, and the dimming film is arranged in the positioning area.

3. The dimming film structure according to claim 2, characterized in that: The dimming film is fixed to the PC board by a first Velcro adhesive.

4. The dimming film structure according to claim 1, characterized in that: The PC board is provided with an arc structure at a corner, and the fitting component includes an adhesive tape provided on the arc structure.

5. The dimming film structure according to claim 4, characterized in that: The fitting assembly also includes a second Velcro patch arranged on the straight edge of the PC board.

6. The dimming film structure according to claim 4, characterized in that: The fitting assembly also includes a magnetic sticker or an acrylic buckle arranged on the straight edge of the PC board.

7. The dimming film structure according to claim 1, characterized in that: The outer edge of the dimming film is provided with an edge sealing strip along the circumferential direction for covering the electrode.

8. The dimming film structure according to claim 1, characterized in that: The electrode is connected to an electrode lead, one end of the electrode lead away from the electrode is connected to an electric control, one end of the electric control is connected to a vehicle cigarette lighter, and the other end is connected to a voice switch or a key switch.

9. The dimming film structure according to claim 8, characterized in that: The electrode lead passes through the vehicle B-pillar interior trim and is connected to the electronic control.

10. A car sunroof, characterized in that: The invention comprises the dimming film structure as described in any one of claims 1 to 9.

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