KR100543167B1 - The door scuff with electro luminescence - Google Patents

Abstract

The present invention relates to a door scuff of a car trim using inorganic EL (Electro Luminescence), and more particularly, to a door scuff of a motor trim made of a conventional metal plate and a plate having an insertion groove into which the metal plate is inserted. In order to improve, the inverter for converting a direct current of the voltage supplied through a wire connected to one side of the battery of the vehicle into an alternating current having a predetermined frequency; A microcomputer control unit controlling the operation of the inverter; An EL (Electro Luminescence) sheet electrically connected to the inverter and emitting light by power supplied through the inverter; By including the text sheet attached to the front surface of the inorganic EL sheet and printed in a silkscreen manner, the vehicle name and the vehicle logo emit light in a desired color by the inorganic EL sheet.

Regardless of the surrounding environment, it is possible to improve the discrimination ability of a vehicle name or a vehicle logo day and night, and to provide a variety of colors to the vehicle name or the vehicle logo to enhance the aesthetics of the vehicle.

Inverter, inorganic EL sheet, microcomputer control unit, text sheet

Description

Door scuff of car trim using inorganic EL {THE DOOR SCUFF WITH ELECTRO LUMINESCENCE}

1 is a perspective view showing a door scuff of a car trim using an inorganic EL (Electro Luminescence) according to the present invention,

2 is an exploded perspective view illustrating components of a door scuff of a car trim using inorganic EL (Electro Luminescence) according to the present invention;

3 is a circuit diagram of a door scuff of a car trim using inorganic EL (Electro Luminescence) according to the present invention;

Figure 4 is an embodiment showing the components of the door scuff of the car trim using inorganic EL (Electro Luminescence) according to the present invention,

Figure 5 is an embodiment showing the manufacturing process of the inorganic EL sheet of the components of the door scuff of the car trim using inorganic EL (Electro Luminescence) according to the present invention,

Figure 6 is a perspective view combining the components of the door scuff of the car trim using inorganic EL (Electro Luminescence) according to the present invention.

*** Explanation of symbols for main parts of drawing ***

10: microcomputer control unit 10-1: sensor unit

20: inverter 30: inorganic EL sheet

40: text sheet

The present invention is to improve the door scuff of a car trim consisting of a conventional metal plate and a plate having an insertion groove into which the metal plate is inserted, so that an inverter, a microcomputer control unit, an inorganic EL (Electro Luminescence) sheet (Sheet), and a text sheet are included. It is possible to improve the identification of vehicle name or vehicle logo day and night regardless of the surrounding environment, and to apply various colors to the vehicle name or vehicle logo to enhance the aesthetics inside the vehicle. Relates to a door scuff.

Currently, a door scuff (DOOR SCUFF) is installed at a lower side of a general vehicle, that is, a car trim part, to help passengers easily get on and off. The door scuff is mounted on an outer panel of the door, and is composed of a plate which is fixed together with a carpet installed in an indoor floor of the vehicle and forms a body. In this case, protrusions are formed on the surface of the plate, and the protrusions are formed to be long in the longitudinal direction of the door on the upper surface of the plate in order to facilitate the getting on and off of the occupant and to remove foreign substances on the passenger's shoes. Is common.

On the other hand, the plate is assembled with a graphic plate (or dial) engraved with a specific character or logo for the purpose of promoting the vehicle name or characteristics of the vehicle. Here, the color pigment or color film is inserted into the character or logo engraved on the figure plate to have a discriminating power.

However, as mentioned above, letters or logos formed on the graphics board are directly engraved and formed on the letter board itself, causing a lot of trouble in the work, and in particular, a separate color pigment or film must be inserted again for identification of the logos or letters. By doing so, there was a problem of lowering productivity and work efficiency due to unnecessary work processes.

In order to solve such a problem, the conventional registered utility model No. 312332 is to be formed such that the character or logo is printed or screen protruded on the upper surface of the dial or protruded or recessed from the upper surface of the dial, the dial It has been suggested that the door scuff for UV coating is applied so that fluorescent film or luminous film is inserted into the letter groove engraved on it, but this is because night time or ambient environment when fluorescent film or luminous film inserted into the letter groove gets wet by external environment. In this dark place, there was a problem that the logo or the character of the character is inferior, and also because the letter or logo of the metal plate is static, bringing the monotony of the interior design of the vehicle, there was a problem that the aesthetic effect was somewhat reduced.

The present invention devised to solve the problems as described above is easy to install, even when used for a long time can expect a smooth luminous effect day and night, regardless of the surrounding environment, graft the desired color (Color) to the vehicle name or vehicle logo It is to provide a vehicle door scuff that can enhance the aesthetics of the vehicle interior design.

In order to achieve the above object, the door scuff of the vehicle trom using the inorganic EL (Electro Luminescence) according to the present invention,

Made up of a door scuff of an automobile trom composed of a metal plate and a plate having an insertion groove into which the metal plate is inserted,

Microcomputer control unit 10 for controlling the drive of the inverter in accordance with the open and closed state of the door transmitted through the sensor unit installed on one side of the vehicle door,

An inverter 20 driven by the control of the microcomputer control unit converts a direct current of a voltage supplied through a wire connected to one side of a vehicle battery into an alternating current having a predetermined frequency and transmits the alternating current to an inorganic EL (Electro Luminescence) sheet. Wow,

An inorganic EL (Electro Luminescence) sheet (Sheet) 30 electrically connected to the inverter and emitting light by power supplied through the inverter;

The vehicle name and the vehicle logo attached to the front surface of the inorganic EL sheet and printed in a silkscreen manner are achieved by including a text sheet 40 which emits light in a desired color by the inorganic EL sheet.

The microcomputer controller is configured to program an algorithm for turning on the inorganic EL sheet when the vehicle door is opened through a sensor connected to one side of the vehicle door, and turning off the inorganic EL sheet when the vehicle door is closed.

The inverter is configured to drive an inorganic EL sheet by setting AC 110V and a frequency of 400 Hz as reference values.

In addition, the inorganic EL (Electro Luminescence) sheet (Sheet) is composed of a polyethylene terephthalite (PET: Poly (ethyleneterephtalate)) film and a transparent conductive film (ITO: Indium-Tin Oxide) to generate the light generated in the fluorescent layer The front electrode layer (A) which acts as a transparent electrode to emit to the outside,

Fluorescent layer (B) composed of a fluorescent paint (phosphor + binder) to generate power by receiving power from an inverter,

A dielectric layer (C) composed of a dielectric paint (dielectric + binder) to induce an insulating role between the front electrode layer and the back electrode layer and smooth emission of the phosphor;

A back electrode layer (D) serving as an electrode which is composed of an electrode made by coating a conductive carbon ink and a conductive organic polymer emulsion on an aluminum thin film, and is supplied together with the front electrode;

It consists of a coating ink and consists of a protective layer (E) which serves to protect each layer of the EL from the outside.

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

1 is a perspective view showing a door scuff of a car trim using an inorganic EL (Electro Luminescence) according to the present invention, Figure 2 is a configuration of a door scuff of the car trim using an inorganic EL (Electro Luminescence) according to the present invention The present invention relates to an exploded perspective view in which elements are disassembled, and FIG. 3 relates to a circuit diagram of a door scuff of a car trim using inorganic EL (Electro Luminescence) according to the present invention, and FIG. 4 illustrates an inorganic EL (Electro Luminescence) according to the present invention. 1 is a view illustrating components of a door scuff of a car trim, and FIG. 5 illustrates a process of manufacturing an inorganic EL sheet among the components of a door scuff of a car trim using inorganic EL (Electro Luminescence) according to the present invention. One embodiment also relates to Figure 6, Figure 6 shows the components of the door scuff of the car trim using the inorganic electroluminescence (EL) in accordance with the present invention Was combined sum relates to a perspective view.

The door scuff 1 of the car trim using the inorganic EL (Electro Luminescence) according to the present invention is largely a microcomputer control unit 10, an inverter 20, an inorganic EL (Electro Luminescence) sheet (Sheet) 30, a text sheet ( 40).

The microcomputer control unit 10 is a place to control the drive of the inverter according to the open and closed state of the door transmitted through the sensor unit 10-1 installed on one side of the vehicle door, which input port RA1 is a sensor through the resistor R2 It is connected to the part to receive the Open and Close signals of the door, and the output port RB6 is connected to the system operation terminal (No. 5 pin: System Enable) of the inverter.

That is, the algorithm sends a high signal to the inverter to drive the inverter when the vehicle door is opened through the sensor 10-1 connected to one side of the vehicle door, and sends a low signal to the inverter to stop the drive of the inverter when the vehicle door is closed. Programmed and configured

Here, the sensor unit 10-1 may be configured as an optical sensor, a proximity sensor, and a door sensor that detects an external light amount.

Next, the inverter 20 converts a direct current of a voltage supplied through a wire connected to one side of a vehicle battery into an alternating current having a predetermined frequency, and is configured to emit an inorganic EL (Electro Luminescence) sheet.

That is, the AC voltage output terminal (No.1 pin: Va) is connected to one side of the inorganic EL sheet power input terminal for charging, and the high voltage storage capacitor terminal (No.3 pin: Cs) for input is connected with the Zener diode ZD1 and the capacitor C2. Then, a reference voltage is set through the zener diode ZD1, and the voltage discharged at high voltage according to the set reference voltage is rectified to the capacitor C2 to be smoothed and accumulated. The AC voltage output terminal (No. 4 pin: Vb) is connected to the other side of the inorganic EL sheet power input terminal for discharging, and the system operation terminal (No. 5 pin: System Enable) is connected to the output port RB6 of the microcomputer control unit. The inorganic EL sheet is turned on or off in response to the Open and Close signals of "

High frequency oscillator capacitor input terminal (No. 9 pin: Chf) accumulates high frequency voltage through capacitor C3, Low frequency oscillator input terminal (No. 11 pin: CLF) accumulates low frequency voltage through capacitor C4, resistance input for frequency control Terminal (No. 12 pin: Rf) is connected to capacitor C5 and resistor R4 to be 800HZ, 10% positive duty.Inductor input terminal (No. 15 pin: L) is applied to power supply (12V) from one side of vehicle battery. It is configured to induce high voltage through L1.

Since the inverter 20 according to the present invention emits light when + and − are alternately applied to electricity applied to the phosphor of the phosphor that emits light by injecting electrons into the phosphor in the inorganic EL sheet, the time is alternately flowing. Can be made to emit light at 400 Hz (about 400 times per second).

Typically, the voltage of the inverter for emitting the inorganic EL sheet is 80 V to 130 V, and the frequency is 350 Hz to 1500 Hz. In the present invention, the inverter is set to be AC 110 V and the frequency 400 Hz.

This is because when the voltage is higher than the reference value, the inorganic EL sheet paper may be damaged or deteriorated and deformed. In addition, the frequency is used to continuously turn on / off the operation due to the switching of the power supply, and the brightness of the inorganic EL sheet can be controlled. However, as the number of ON / OFF times increases, the lifetime of the inorganic EL sheet can be abruptly halved. Because it can.

Therefore, in the present invention, in order to brightly control the inorganic EL sheet paper, the reference value is set to be AC 110V and frequency 400Hz. This set value is set and driven by the high voltage storage capacitor terminal, the high frequency oscillator capacitor input terminal, the low frequency oscillator capacitor input terminal, and the frequency control resistance input terminal as shown in FIG.

Next, the EL (Electro Luminescence) sheet (Sheet) 30 is electrically connected to the inverter and emits light by a power supplied through the inverter, which is a front electrode layer (ITO: Indium-Tin Oxide) on the front electrode layer ( A), the fluorescent layer (B), the dielectric layer (C), the back electrode layer (D), the protective layer (E) is produced by printing the coating on a silk screen.

Here, silk screen is one of the printing techniques commonly used, and a stencil (printed paper, metal plate, etc., cut out of a pattern) is placed on a fabric and printed with a scraper. How to make a pattern by applying grass] After putting silk on it and letting the paint leak out with the mesh of silk, the paint is only printed on the stenciled part.

In the manufacturing process, the front electrode layer (A), fluorescent layer (B), dielectric layer (C), back electrode layer (D), and protective layer (E) on the transparent conductive film (ITO: Indium-Tin Oxide) Put the stencil on it, put the screen on the top, and spread out the appropriate amount of silkscreen paint. Then, after squeezing the wooden board with the rubber called squeeze from the top, paint on the perforated parts other than the blocked or glued parts of the stencil. Is leaked out and placed on the front electrode layer (A), fluorescent layer (B), dielectric layer (C), back electrode layer (D), and protective layer (E) on the underlying transparent conductive film (ITO: Indium-Tin Oxide). .

The EL sheet according to the present invention manufactured by the silk screen method is composed of a polyethylene terephthalate (PET: Poly (ethyleneterephtalate)) film and a transparent conductive film (ITO: Indium-Tin Oxide) as shown in FIG. A front electrode layer (A) serving as a transparent electrode for emitting light generated from the fluorescent layer to the outside;

Fluorescent layer (B) composed of a fluorescent paint (phosphor + binder) to generate power by receiving power from an inverter,

A dielectric layer (C) composed of a dielectric paint (dielectric + binder) to induce an insulating role between the front electrode layer and the back electrode layer and smooth emission of the phosphor;

A back electrode layer (D) serving as an electrode which is composed of an electrode made by coating a conductive carbon ink and a conductive organic polymer emulsion on an aluminum thin film, and is supplied together with the front electrode;

It consists of a coating ink and consists of a protective layer (E) which serves to protect each layer of the EL from the outside.

In particular, the back electrode layer (D) is composed of a conductive carbon ink (Carbon Ink), or in the patent application No. 2005-47791 filed by the applicant is composed of an electrode made by coating an aluminum thin film conductive organic polymer emulsion.

Conductive carbon ink (Carbon Ink) is made of a special carbon selected as a one-component type, and has a characteristic of about 14 ~ 20 Ohm / square of excellent conductivity at a thickness of 25 microns made of high quality graphite. The back electrode layer using this property has the mechanical strength and good electrical conductivity of the conductive carbon ink.

In addition, the conductive organic polymer emulsion of the back electrode layer may be polyaniline, polyparaphenyl, polypyrrole, polythiophene, polyacetylene, polymethylthiophene, polyisothianaphthene, polyphenylene sulfide, One or two or more mixtures selected from polyphenylene oxide, polyphenylene vinylene, polythiophene vinylene, polyperinaphthalene (PPN), or derivatives thereof or mixtures of monomers or oligomers and polymers constituting them do.

The conductive organic polymer emulsion has a thickness of 1 to 4 μm, a surface resistance of 0.01 to 1 ohm, and an adhesive force between the aluminum thin film and the dielectric layer to be 400 to 1000 gf / 25 mm to form a back electrode layer.

By applying the back electrode layer made by coating the conductive organic polymer emulsion according to the present invention on an aluminum thin film to an inorganic EL sheet, it has a good effect of improving durability and weather resistance as well as large area compared to existing carbon ink materials. .

As described above, the paint is printed on the front electrode layer (A), the fluorescent layer (B), the dielectric layer (C), the back electrode layer (D), and the protective layer (E) on the transparent conductive film (ITO: Indium-Tin Oxide). EL (Electro Luminescence) sheet (Sheet) according to the present invention has a uniform surface emission almost no heat generation, consumes an average power consumption of 9W (300㎠ and 90cd / ㎡), partial light emission, emission time, And by controlling the order control through the microcomputer control unit, it is possible to produce animation, minimize the thickness including the text sheet with a thin thickness, process various forms, and emit light in curved state, It can provide more than 20 different colors that are soft and soft. It is light and strong, resistant to vibration and shock, and is easy to handle. It has environmentally friendly properties without harmful substances such as mercury, cadmium and lead.

Table 1 below is the reliability test results of the EL (Electro Luminescence) sheet (Sheet) according to the present invention.

Item Exam conditions Exam time Criteria Operation test Room temperature 20 ± 2 ℃ R.H.55 ± 5% Inverter Sequential Drive 1) 15,000Hrs 2) 30,000Hrs  Survival rate 1) 50% or more of initial brightness 2) 30% or more of initial brightness No ITO cracks-No spots-Black spots-θ≤0.3mm per sample High temperature, high humidity 60 ± 2 ℃ R.H.90 ± 2% Inverter continuous drive 240 Hrs  Preservation Test High temperature preservation 85 ± 2 ℃ - 1,000 Hrs Low temperature preservation -40 ± 2 ℃ - 1,000 Hrs Thermal shock 70 ℃, 2 hours -30 ℃, 2 hours - 30 cycles

Next, the text sheet 40 is attached to the front surface of the inorganic EL sheet, and the vehicle name and vehicle logo printed in a silkscreen manner emit light in a color desired by the user by the inorganic EL sheet. And injection molding by designing a mold of stainless material, and printing the vehicle name or the vehicle logo directly on the text sheet using the silk screen printing method on the upper surface (or the front surface).

The name or vehicle logo printed by the screen printing method is embossed or engraved, that is, printed so as to protrude or dent based on the surface of the dial, thereby forming a clearer identification power.

Hereinafter, the manufacturing process of the EL sheet among the components of the door scuff for a vehicle using EL (Electro Luminescence) according to the present invention will be described through an embodiment.

Example 1

As shown in Fig. 5, first, an EL (Electro Luminescence) sheet having a connector wire attached thereto is formed on a terminal of the EL (S100).

Then, the base plate and the inorganic EL sheet in the frame are fixed using double-sided tape (S110).

The graphic film is fixed on the inorganic EL sheet attached to the base plate with double-sided tape (S120).

The inorganic EL sheet to which the graphic film is attached is combined with the injection molding to block impact and waterproof noise (S130).

Through this manufacturing process, as shown in FIG. 6, by connecting the connector connected to the terminal of the inorganic EL sheet to the connector of the inverter, it is possible to manufacture the door scuff of the car trim using EL (Electro Luminescence) according to the present invention.

As described in detail above, according to the door scuff for a vehicle using EL (Electro Luminescence) according to the present invention, it is easy to install, and even when used for a long time, a smooth light emission effect can be expected regardless of the surrounding environment. It is a good effect to enhance the aesthetics of the interior design by incorporating the user's desired color into the logo.

Claims (5)

The microcomputer control unit 10 for controlling the drive of the inverter in accordance with the open and closed state of the door transmitted through the sensor unit installed on one side of the vehicle door, An inverter 20 driven by the control of the microcomputer control unit converts a direct current of a voltage supplied through a wire connected to one side of a vehicle battery into an alternating current having a predetermined frequency and transmits the alternating current to an inorganic EL (Electro Luminescence) sheet. Wow, An inorganic EL (Electro Luminescence) sheet (Sheet) 30 electrically connected to the inverter and emitting light by power supplied through the inverter; In the configuration in which the vehicle sheet and the vehicle logo printed on the front surface of the inorganic EL sheet and printed in a silkscreen manner are included in the inorganic EL sheet, the text sheet 40 emits light in a desired color. The inverter 20 has an AC voltage output terminal (No. 1 pin: Va) connected to one side of the inorganic EL sheet power input terminal to charge, and an input high voltage storage capacitor terminal (No. 3 pin: Cs) is connected to the zener diode ZD1. Connected to capacitor C2, it sets reference voltage through zener diode ZD1, rectifies and accumulates voltage discharged at high voltage in capacitor C2 according to the set reference voltage, and accumulates it smoothly. Vb) is connected to the other side of the inorganic EL sheet power input terminal to discharge, and the system operation terminal (No. 5 pin: System Enable) is connected to the output port RB6 of the microcomputer control unit to open and close the car door. When the signal is input, the inorganic EL sheet is turned on or off, and the capacitor input terminal (No. 9 pin: Chf) for the high frequency oscillator accumulates high frequency voltage through the capacitor C3. Capacitor input terminal (No.11 pin: CLF) accumulates low frequency voltage through capacitor C4, and resistor input terminal (No.12 pin: Rf) for frequency control is connected to capacitor C5 and resistor R4 to be 800HZ, 10% Positive Duty. And an inductor input terminal (No. 15 pin: L) is configured to induce a high voltage through a power source 12V applied from one side of a vehicle battery through an inductor L1. delete delete The door scuff of an automobile trim using an inorganic EL according to claim 1, wherein the inverter (20) sets the AC 110V and the frequency of 400 Hz to drive the inorganic EL sheet. delete

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