KR102396346B1 - Smart cruise control cover f0r automobiles with anti-icing and de-icing functions and maunracturing method thereof - Google Patents

Abstract

The present invention relates to a smart cruise control cover (6) for automobiles with anti- and de-icing functions. A zigzag hot wire (12) for connecting two terminal electrodes (20) is arranged and fused on the rear surface of a transparent film (10) for an outer cover. A transparent film (16) for masking is attached to a terminal connection area (14) of the rear surface of the transparent film (10) for an outer cover. A portion of the transparent film (10) for an outer cover is removed to form terminal electrode formation grooves (18) on a portion of the terminal connection area (16) in the front surface of the transparent film (10) for an outer cover, so that the hot wire (12) is exposed. The terminal electrode formation grooves (18) are printed with photosintered copper ink, and the photosintered copper ink is cured to form the terminal electrodes (20), thereby forming a heating film (22). A portion of a thin-film emblem-printed film (24) having radar radio wave transmission is bonded to the transparent film (16) for masking on the heating film (22). A rear injection resin layer (26) in which the rear surface of the thin-film emblem-printed film (24) and the terminal electrodes (20) are embedded is formed. Terminals (28) electrically connected to the terminal electrodes (20) are formed on the rear injection resin layer (26) to be exposed. In a state where the heating film (22) to which the terminal connection area (14) is attached is bent from an end of the rear injection resin layer (26) on the sidewall and the front surface of a front injection resin layer (30) to be formed, the front injection resin layer (30) is formed between the rear surface of the heating film (22) and the thin-film emblem-printed film (24). Therefore, the hot wire (12) and the terminal electrodes (20) are made watertight, and the electrode terminals (20) and the terminal connection area are hidden.

Description

SMART CRUISE CONTROL COVER F0R AUTOMOBILES WITH ANTI-ICING AND DE-ICING FUNCTIONS AND MAUNRACTURING METHOD THEREOF

The present invention relates to a smart cruise control (SCC) cover for automobiles, and in particular, a smart automobile smart cruise control having anti-icing and ice-making functions to prevent SCC malfunctions such as radar interference caused by icing on the automobile SCC cover. It relates to a cruise control cover and a manufacturing method thereof.

Cars these days have numerous electronic convenience devices and are equipped with advanced automotive features useful to drivers.

As one of the advanced possible automobiles, there is a smart cruise control function. The Smart Cruise Control (SCC) function is a function that maintains a constant vehicle speed or accelerates and decelerates itself according to the distance from the vehicle in front. Recently, the SCC function applied to vehicles has also added a 'Stop & Go' function that checks the distance from the vehicle in front and stops and starts again when the vehicle in front stops. Also called 'Cruise Control'.

As the detection sensors for providing the smart cruise control (SCC) function for automobiles, there are a front camera that recognizes a lane and a vehicle in front, and a front radar that detects a vehicle in front and maintains an inter-vehicle distance.

The position of the detection sensor may be different for each type of vehicle, and the front radar among the detection sensors is mainly installed with the smart cruise control (SCC) cover at the emblem position in front of the vehicle.

As shown in Figure 1, the front radar (2) of the smart cruise control equipment located in the front of the vehicle serves as the emblem of the vehicle and the smart cruise control cover (4), which serves to protect the front radar (2), is placed on the front part. configure it to be

In (a) of FIG. 2, it shows an example photo related to the smart cruise control cover 4 of FIG. 1 that also serves as an emblem.

In order for the front radar 2 to work properly, it is very important to prevent the smart cruise control cover 4 located on the front of the front radar 2 from being contaminated.

However, the smart cruise control cover 4 located on the front side of the front radar 2 may be frosted by freezing or foreign substances may be attached to the smart cruise control cover 4 due to the influence of cold weather as shown in the photo example of FIG. 2(b).

Foreign substances should be cleaned frequently by the driver, and the frost on the smart cruise control cover 4 needs to be automatically removed or searched so that it does not get caught at all. In particular, frost or icing is often caught on the smart cruise control cover (4) during the mirror season, so a solution to this is essential to find, and also to implement a smart cruise control cover for automobiles with anti-icing and de-icing functions. It is desired to develop a smart cruise control cover that can be manufactured economically and robustly without malfunctioning of the circuit part for ice prevention and ice making due to moisture inflow.

Registered Patent Publication No. 10-1856441 "Cover for automobile cruise control sensor and manufacturing method therefor"

Accordingly, it is an object of the present invention to provide a smart cruise control cover for automobiles having anti-icing and de-icing functions for preventing SCC malfunctions such as radar interference caused by icing on a smart cruise control (SCC) cover for automobiles and a manufacturing method thereof. there is.

Another object of the present invention is to make it easy to maintain watertightness of the heating wire and terminal electrode in implementing the anti-icing and ice-making functions in the smart cruise control cover for automobiles, to conceal the external appearance of the terminal connection, and to reinforce the rigidity of the terminal connection. An object of the present invention is to provide a smart cruise control cover for a vehicle that does not require a separate operation and a manufacturing method thereof.

The present invention according to the above object, in a smart cruise control cover for a vehicle having an anti-icing and ice-making function, a zigzag-shaped hot wire connecting two terminal electrodes is arranged and fused on the back of the transparent film for the outer cover, and the outer cover Attach a transparent film for masking to the terminal connection area on the back side of the transparent film for external use, and remove some film to provide a terminal electrode formation groove on a part of the front surface of the transparent film for outer skin to expose the hot wire, and Ink is printed and cured in the terminal electrode forming groove to form a terminal electrode to form a heating film part, and a part of a thin film emblem printing film having radar wave transmittance is adhered to a transparent film for masking of the heating film part, and a thin film emblem printing film A rear surface injection resin layer is formed so that the rear surface and the terminal electrode are buried, but the terminal electrically connected to the terminal electrode is exposed on the rear surface injection resin layer The front part transparent injection resin layer is formed between the back side of the heating film part and the thin-film emblem printing film in the state that the front part is bent with the side wall part and the front part of the transparent injection resin layer to be formed, so that the heating wire and the terminal electrode are watertight, and the electrode terminal and terminal connection part It is characterized by concealment.

In addition, in the smart cruise control cover for automobiles having an anti-icing and ice-making function of the present invention, the thickness of the smart cruise control cover is 6 to 8.5 mm, and it is characterized in that it is determined as an integer multiple of the half-wavelength value of the radar wavelength.

In addition, the present invention is characterized in that the transparent film for the outer shell of the heating film part has a thickness of 0.2 to 0.5 mm, and the heating wire is 40 to 60 μm thick and configured to have a zigzag-arranged pitch interval of 3 to 6 mm.

In addition, as another aspect of the present invention, in a method for manufacturing a smart cruise control cover for a vehicle having an anti-icing and ice-making function, the steps of arranging and fusing a zigzag-shaped hot wire connecting two terminal electrodes on the back surface of the transparent film for the outer skin and , A transparent film for masking is attached to the terminal connection area on the back side of the transparent film for outer skin, and some films are removed to provide a terminal electrode forming groove on a part of the front surface of the transparent film for outer skin to expose the hot wire. Printing and curing sintered copper ink in the terminal electrode forming grooves to form terminal electrodes to prepare a heating film part, and as a non-metallic thin film material having radar wave transmittance, manufacturing an emblem printing film including a metal texture part; Adhering a part of the printed film onto the transparent film for masking of the heating film part, and forming the back side injection resin layer so that the back side of the emblem printing film and the terminal electrode are buried, but the terminal electrically connected to the terminal electrode is exposed to the rear side injection resin layer The front part is transparent between the back side of the heating film part and the thin-film emblem printing film in the state that the heating film part with the terminal region part attached to the side end of the rear part injection resin layer is bent into the side wall part and the front part of the front part transparent injection resin layer to be molded It is characterized in that the step of obtaining a smart cruise control cover in which the hot wire and the terminal electrode are watertight and the electrode terminal and the terminal connection part are hidden by forming an injection resin layer.

The present invention can implement anti-icing and de-icing functions to prevent SCC malfunctions such as radar radio interference caused by icing on the SCC cover for automobiles, and furthermore, in implementing the anti-icing and de-icing functions on the SCC cover for automobiles, hot wires and terminal electrodes It is easy to maintain the watertightness of the terminal connection part, and it can be hidden without exposing the external appearance of the terminal connection part, and it has the advantage of eliminating the need for reinforcement work to maintain the rigidity of the terminal connection part.

1 is a view for explaining a front radar and a smart cruise control cover of the smart cruise control installed in front of the vehicle;
2 is an exemplary photograph of a smart cruise control cover and a photograph of an icing state;
3 is a view illustrating the mounting position and photograph of the smart cruise control cover applied to the embodiment of the present invention;
4 is a configuration diagram of a hot wire fusion heating film of a smart cruise control cover according to an embodiment of the present invention;
5 is a cross-sectional configuration view of a smart cruise control cover manufactured according to an embodiment of the present invention;
6 and 7 are a manufacturing process diagram of a smart cruise control cover according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view illustrating the mounting position and photograph of the smart cruise control cover 6 applied to the embodiment of the present invention.

The smart cruise control cover 6 according to the embodiment of the present invention may be mounted on, for example, a radiator grill in a front position of the vehicle, and may have the same design as the radiator grill design as shown in FIG. 3 . As another example of the present invention, as shown in the example of FIG. 2 , it may be configured as a smart cruise control cover that serves as an emblem at the front emblem arrangement position.

In the present invention, the heating film part 22 to which the heating wire 12 as shown in FIG. 4 is fused is built in the smart cruise control cover 6 as shown in FIG. It removes possible frost or icing or prevents it from occurring in advance so that radio wave interference of the front radar protected by the smart cruise control cover 6 does not occur.

In addition, in implementing the smart cruise control cover 6 of the present invention, it not only promotes anti-icing and de-icing functions to prevent SCC malfunctions such as radar jamming, but also designs emblems such as vehicle logos or emblems such as vehicle radiators. While this is formed together, it is configured so that the malfunction of the front radar due to the internal structure of the cover also does not occur.

Furthermore, in the present invention, it is easy to maintain watertightness of the hot wire and the terminal electrode, it is possible to hide the external appearance of the terminal connection part, and the smart cruise control cover 6 is manufactured.

5 is a cross-sectional view of the smart cruise control cover 2 manufactured according to an embodiment of the present invention, and is a cross-sectional view taken along line A-A in the plan view of FIG. 4 .

The smart cruise control cover 2 manufactured according to the embodiment of the present invention has a built-in heating film part 22 to which the heating wires 12 arranged in a zigzag form as shown in FIG. 4 are fused, the heating wire 12 and the terminal The electrode 20 is sealed inside the transparent film 10 for the outer skin to maintain watertightness. It has a structure that is manufactured so that no additional reinforcement work is required.

As shown in FIG. 5, the smart cruise control cover 2 of the present invention is configured such that the zigzag-shaped hot wire 12 connecting the two terminal electrodes 20 is arranged and fused on the back surface of the transparent film 10 for the outer skin. In addition, the transparent film 16 for masking is attached to the terminal connection area 14 on the rear surface of the transparent film 10 for outer skin, and a part of the terminal connection area 14 of the front surface of the transparent film 10 for outer cover is placed on the In order to prepare the terminal electrode forming groove 18, some film is removed to expose the hot wire 12, and optical sintered copper ink is printed and cured in the terminal electrode forming groove 18 to form the terminal electrode 20 to form a heating film part. (22) constitutes,

A part of the thin-film emblem printing film 24 having radar wave transmittance is adhered to the transparent film 16 for masking of the heating film part 22, and the rear surface of the thin-film emblem printing film 24 and the terminal electrode 20 are embedded The rear surface injection resin layer 26 is formed, but the terminal 28 electrically connected to the terminal electrode 20 is exposed to the rear surface injection resin layer 26,

A heating film in a state in which the heating film part 22 attached to the terminal connection area part 14 side to the side end of the rear injection resin layer 26 is bent into the side wall part and the front part of the front transparent injection resin layer 30 to be molded The front part transparent injection resin layer 30 is formed between the rear surface of the part 22 and the thin-film emblem printing film 24 so that the hot wire 12 and the terminal electrode 20 are watertight, and the electrode terminal 20 and the terminal connection part to be concealed

The smart cruise control cover 6 according to the present invention has a thickness (t) of 6 to 8.5 mm, and the thickness is determined as an integer multiple of the half-wavelength value of the radar wavelength of the front radar within the thickness range of 6 to 8.5 mm, so that the radar propagation to pass through the cover 6 in the form of a standing wave. If the thickness (t) of the smart cruise control cover (6) of the present invention is out of the range of 6 ~ 8.5mm, the 77GHz radar wavelength of the front radar passes through the cover (6) and propagation loss may be caused. there is.

6 and 7 are manufacturing process diagrams of the smart cruise control cover 6 according to an embodiment of the present invention.

6 and 7, the manufacturing process of the smart cruise control cover 6 according to the embodiment of the present invention will be described in more detail.

In the present invention, first, the transparent film 10 and the heating wire 12 for the outer skin to be composed of the heating film part 22 of the form as shown in FIG. 4 are prepared.

The transparent film 10 for the outer skin uses PC (PolyCarbonate) resin as a heat-resistant resin material that can sufficiently withstand high temperatures during insert injection. The transparent film for outer layer 10 has a thickness of 0.2 to 0.5 mm. If the thickness of the transparent film for outer layer 10 is less than 0.2 mm, the film protection function from the external environment is deteriorated and the thickness of the transparent film for outer film 10 is decreased. When is greater than 0.5 mm, the critical significance of the thickness range of 0.2 to 0.5 mm that the heat generated from the heating wire 12 embedded in the transparent film 10 may not be sufficiently transmitted to the outer surface of the transparent film 10 . there is

And on the rear surface of the transparent film 10 for the outer skin, as shown in FIG. 4, a zigzag-shaped hot wire 12 connecting the two terminal electrodes 20 is arranged and then fused [Fig. 6 (a)], the hot wire It is preferable to perform the fusion in (12) by thermal fusion or ultrasonic fusion. In addition, if necessary, the hot wire 12 can be formed through hot wire printing using conductive ink.

The hot wire 12 is a copper wire having a thickness of 40 to 60 μm, and is configured to have a pitch interval of 3 to 6 mm of the hot wire 12 arranged zigzag as shown in FIG. 4 . If the thickness of the heating wire 12 is 40 to 60 μm, if it is less than 40 μm, the calorific value for ice making and anti-icing cannot be satisfied, and if the thickness exceeds 60 μm, the heating wire 12 in the cover 6 is easily visible with the naked eye. It has a critical significance that it can.

After arranging and fusing the zigzag hot wire 12 connecting the two terminal electrodes 20 on the back surface of the transparent film 10 for the outer skin (Fig. 6 (a)), in Fig. 6 (b) and Similarly, a transparent film 16 for masking is attached to the terminal connection region 14 of the rear surface of the transparent film 10 for the outer skin.

In addition, in order to provide a terminal electrode forming groove 18 in a part of the terminal connection area 14 from the back side opposite the front side of the transparent film 10 for outer skin, some film is removed to expose the embedded hot wire 12 [ 6(b)], the terminal electrode 20 is formed by printing and curing optical sintered copper ink in the terminal electrode forming groove 18 to provide a heating film portion 22 having the same planar shape as in FIG. 4 (see Fig. 6 (d)).

Meanwhile, in the present invention, the emblem printing film 24 in which the emblem of the grill design as in the example of FIG. 3 is formed on the smart cruise control cover 6 is separately manufactured [FIG. 6(c)].

The emblem printing film 24 is a non-metallic thin film material having radar radio wave transmittance, has a thickness of 100 to 150 μm, and includes a metal texture portion 24a. The emblem printing film 24 is configured such that an emblem design such as a grill design is expressed by printing with ink (black ink in the example of FIG. 3) on the part except for the metal texture part 24a.

As an example of the emblem printing film 24, a Picassus film (trade name) is preferable. Parkassus Film has similar durability to metals such as aluminum, but is a much lighter material. In a thin film with a thickness of about 100 μm, about 1000 polymer layers are laminated horizontally and vertically, and it can produce a glossy effect like a metallic material. It can be made transparent and can be made transparent to radar.

And, in the present invention, as in FIG. 7(e), a part of the emblem printing film 24 separately manufactured in the step of FIG. 6(c) is part of the heating film part 22 prepared in the step of FIG. It is adhered with an adhesive 25 on the transparent film 16 for masking.

Then, in the present invention, as shown in FIG. 7(f), the rear surface injection resin layer 26 for embedding the rear surface of the emblem printing film 24 and the terminal electrode 20 is formed by terminal insert injection molding, but the terminal to be embedded The terminal 28 electrically connected to the electrode 20 is exposed on the rear side injection resin layer 26 . In addition, most of the heating film part 22 except for a part of the terminal connection area part 14 protrudes from the cavity of the insert injection mold and is exposed to the outside.

The rear injection resin layer 26 has a thickness of 1.5 to 1.8 mm, and is preferably a black resin made of acrylonitrile-styrene-acrylate (ASA) or acrylonitrile-(ethylene-propylene-diene)-styrene (AEPDS).

After forming the rear injection resin layer 26 as shown in (f) of FIG. 7, in the present invention, as shown in FIG. In a state in which the heating film part 22 to which is attached is bent into the side wall part and the front part of the injection resin layer 30 of the front part to be molded, the front part is transparent between the back surface of the heating film part 22 and the thin-film emblem printing film 24 The injection resin layer 30 is formed by insert injection molding to complete the manufacture of the smart cruise control cover 6 of the present invention.

The front transparent injection resin layer 30 formed by insert injection molding has a thickness of 5 to 6 mm and uses a PC material transparent resin.

Accordingly, the hot wire 18 and the terminal electrode 20 are watertight in the smart cruise control cover 6 of the present invention, and the terminal connection part of the electrode terminal 20 and the terminal connection area part 16 is hidden from the outside. In addition, the terminal connection part connecting the electrode terminal 20 and the hot wire 12 arranged in a zigzag is a conductive wire (hot wire) between the transparent film 10 for outer skin and the transparent film 16 for masking in the terminal connection area part 16 . ) is wrapped, so the rigidity of the terminal connection is maintained immediately, so there is no need for additional reinforcement work.

Although specific embodiments have been described in the above description of the present invention, various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be defined by the claims and equivalents to the claims.

(2)-- Front radar (4)(6)-- Smart cruise control cover
(10)-- Transparent film for outer skin (12)-- Heat wire
(14)-- Terminal connection area (16)-- Transparent film for masking
(18)-- Terminal electrode forming groove (20)-- Terminal electrode
(22)-- Heating film part (24)-- Emblem printing film
(25)-- Adhesive (26)-- Injection resin layer on the back
(28)-- Terminal (30)-- Front transparent injection resin layer

Claims (4)

In the smart cruise control cover for automobiles having anti-icing and ice-making functions,
A zigzag-shaped hot wire connecting the two terminal electrodes is arranged and fused on the back side of the transparent film for outer skin, and a transparent film for masking is attached to the terminal connection area on the back of the transparent film for outer cover, and the front surface of the transparent film for outer cover In order to provide a terminal electrode forming groove in a part of the middle terminal connection area, some film is removed to expose the hot wire, and optical sintered copper ink is printed and cured in the terminal electrode forming groove to form a terminal electrode to form a heating film part,
A part of the thin-film emblem printing film with radar wave transmission is adhered to the transparent film for masking of the heating film part, and the rear part of the thin-film emblem printing film and the rear part where the terminal electrode is buried is formed, but the terminal electrically connected to the terminal electrode is formed on the rear part It is configured to be exposed to the injection resin layer,
In a state in which the heating film part with the terminal connection area side attached to the side end of the rear injection resin layer is bent to the side wall part and the front part of the transparent injection resin layer of the front part to be molded, the front part transparent injection water between the back surface of the heating film part and the thin-film emblem printing film Smart cruise control cover for automobiles with anti-icing and ice-making functions, characterized in that it is configured to form a stratum so that the hot wire and terminal electrode are watertight and the electrode terminal and terminal connection part are hidden.
The smart cruise control cover for automobiles according to claim 1, wherein the thickness of the smart cruise control cover is 6 to 8.5 mm, and is determined to be an integer multiple of the half-wavelength value of the radar wavelength.
The method according to claim 1 or 2, wherein the transparent film for the outer shell of the heating film part has a thickness of 0.2 to 0.5 mm, and the heating wire has a thickness of 40 to 60 μm and is configured to form a zigzag-arranged pitch interval of 3 to 6 mm. Smart cruise control cover for automobiles featuring.
A method for manufacturing a smart cruise control cover for a vehicle having an anti-icing and ice-making function, the method comprising:
A step of arranging and fusing a zigzag hot wire connecting the two terminal electrodes on the back surface of the transparent film for outer skin,
Attach a transparent film for masking to the terminal connection area on the back of the transparent film for outer skin, and remove some film to expose the hot wire to provide a terminal electrode forming groove on a part of the front of the transparent film for outer skin in the terminal connection area, then optically sinter Preparing a heating film part by printing and curing copper ink in the terminal electrode forming groove to form a terminal electrode;
A step of producing an emblem printing film containing a metallic texture part as a non-metallic thin film material having radar wave transmission;
Adhering a part of the emblem printing film on the transparent film for masking the heating film part;
forming a rear surface injection resin layer in which the rear surface of the emblem printing film and the terminal electrode are embedded, but the terminal electrically connected to the terminal electrode is exposed to the rear surface injection resin layer;
The front transparent injection resin layer is formed between the back side of the heating film part and the thin-film emblem printing film in the state that the heating film part with the terminal area part attached to the side end of the rear part injection resin layer is bent into the side wall part and the front part of the front transparent injection resin layer to be molded. to obtain a smart cruise control cover in which the heating wire and the terminal electrode are watertight and the electrode terminal and the terminal connection part are hidden.

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