KR101770522B1 - A car emblem and a radiator grille capable of being penetrated by electromagnetic wave of vehicle radar, and the method for production thereof - Google Patents

Abstract

The present invention relates to an emblem positioned on the front of a vehicle and a radiator grill and, specifically, to an emblem, a radiator grill, and a manufacturing method thereof, wherein the emblem and the radiator grill indicate silver glossy metal texture same as existing chrome plating and receive or transmit waves in the air as a front radar for a vehicle passes through the emblem and the radiator grill without change and reduction of radiation performance. To this end, according to the present invention, a base shape of the vehicle emblem and the radiator grill is formed by using: plastics such as polycarbonate (PC), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), acrylonitrile butadiene styrene (ABS), polyoxymethylene (POM), polybutadiene (PBD), polyethylene terephthalate (PET), ethylene vinyl acetate (EVA), polymethyl methacrylate (PMMA), polybutadiene terephthalate (PBDT), ethylene propylene rubber (EPR), ethylene propylene diene monomer (EPDM), and glass fiber; a rubber-based base metal element; or a base metal composite as a basic material. A base metal paint adheres on the surface of the base shape as a thin layer by a vacuum evaporation process.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automobile emblem and a radiator grille that transmit a radio wave of a vehicle radar, and a radiator grille and a method of manufacturing the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emblem and a radiator grille located at the front of an automobile. More particularly, the present invention relates to an emblem and a radiator grille, which are mounted on a rear surface of a unique emblem of a car manufacturer or a rear surface of a front radiator grille, Can transmit or receive a wave through the emblem and the radiator grill without receiving a decrease or change in radiation performance, and at the same time, it is possible to transmit and receive an emblem representing silverlight of the same metal texture as conventional chrome plating And a radiator grille, and a manufacturing method thereof.

The vehicle radar mounted on a car can be divided into a front radar and a rear side radar. The front radar is used as a sensor to assist the driver in driving assistance. The rear side radar is used to secure the driver's safety It is used as a sensor to do this.

In particular, a vehicle frontal radar is a sensor for measuring the distance between a vehicle and a plurality of other automobiles in front of the same lane and left and right lanes. The automobile accelerates or decelerates depending on the distance to another vehicle ahead, A warning is displayed, and the sensor is used as a sensor for collecting information so as to help the driver to operate.

Currently, most vehicle front radar transmit radio waves with a frequency of 77 GHz in front and receive reflected radio waves from many other cars to calculate distances to other cars ahead.

Therefore, in order to minimize the phenomenon that the radio wave transmitted from the vehicle front radar is reflected by a body or ground of an unnecessary object, for example, a radar-equipped automobile, Ideally, the front radar should be mounted at the front of the car above a certain height from the ground.

Therefore, the most ideal mounting position of the front radar in the automobile becomes the center between the right and left headlights, and the position may be different depending on the manufacturer and the design of the automobile, but the position is usually a front radiator grill, The emblem is present.

The emblem of the automobile is a symbol representing the automobile manufacturer. Each manufacturer uses a unique shape, letter, or logo. The front radiator grille is also used as a model of the automobile manufacturer and its line-up ), Respectively.

In this way, the shape of the car emblem and the radiator grill are different for each manufacturer and model, but most automobile emblems and radiator grills are basically made of silver color and metallic texture, texture and gloss For this purpose, a nonmetal component such as a plastic or a rubber is used as a basic material to form an inherent shape, and the shape surface is plated with chromium.

Therefore, when a vehicle front radar is mounted on the rear side of a conventional automobile emblem or front radiator grille, the radio waves of the vehicle radar are transmitted and received through the emblem or the radiator grill, and the radio wave propagation of the radar is performed by the metallic embossing layer of the conventional emblem or radiator grille wave propagation performance is affected, and the overall performance of the vehicle radar is seriously degraded.

Therefore, it is possible to provide a metal laminate having a silver luster of the same metal texture as chrome plating applied to a conventional automobile emblem and a radiator grille, It is necessary to develop an automobile emblem comprising a paint, a radiator grill and a manufacturing method thereof.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a vehicle frontal radar, which is mounted on a rear surface of an automobile emblem or a front radiator grill, An automobile emblem having a luminous flux and a radiator grill.

It is another object of the present invention to provide a manufacturing method such as a method of painting the composition of the paint having silver metallic luster of the metallic texture and the ratio thereof, the coating of the paint on the emblem formed of a base metal material and the radiator grill.

In order to achieve the above object, the automobile emblem and the radiator grill according to the present invention are characterized by having a shape of a unique emblem or a radiator grill of a car manufacturer molded in a base metal of a non-metal component, And a coating layer having a silver luster of the same metal texture as that of conventional chromium plating by adhering a non-metallic coating material with a thin film through a vacuum evaporation process.

The base metal used as the base material may include polycarbonate (PC), polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS) acrylonitrile butadiene styrene), POM (polyoxymethylene), PBD (polybutadiene), PET (polyethylene terephthalate), EVA (ethylene vinyl acetate), PMMA (polymethyl methacrylate), PBDT (polybutadiene terephthalate), EPR propylene diene monomer, and glass fiber. The non-metal-based coating material is a quartz (CAS No. 14808-60-7) (CAS No. 7631-86-9) of 0.1 to 7% by weight, limestone (CAS No. 1317-65-3) of 5 to 20% by weight, an epoxy resin (epoxy resin, CAS No. 25036-25-3) in an amount of 15 to 35% by weight, a hexanedioic acid polymer, CAS No. 25214-14-6) and barium sulfate (CAS No. 7727-43-7) in an amount of 5 to 25% by weight.

The automobile emblem and the radiator grill according to the present invention have the following effects.

First, since the conventional automobile emblem and the radiator grille do not use the chrome plating generally applied to have a metallic feel, the chromatic plating layer of the automobile emblem or the radiator grill does not cause deterioration of the radiating performance of the vehicle front radar.

Second, since the vehicle front radar can be mounted on the back of the front radiator grille or the emblem located in the center of the front of the vehicle, the optimal mounting position of the front radar for the vehicle and the best performance can be ensured.

Third, by mounting the vehicle front radar on the rear of the car emblem or on the front radiator grille, it is possible to secure an aesthetically superior car design compared to a vehicle in which a conventional vehicle radar is exposed.

Fig. 1 is a view conceptually showing the front and rear side radars for a vehicle mounted on an automobile and its role
2 is a diagram showing an ideal mounting position of a front radar in a vehicle
3 is a view showing a conventional automobile emblem and a radiator grill
4 is a view showing a conventional position in which a vehicle frontal radar is mounted;
5 is a view showing an embodiment of a method of manufacturing an automobile emblem and a radiator grill according to the present invention.
6 is a photograph showing one embodiment of various prototypes of an automobile emblem
7 is a photograph showing a radiation performance test of a 77 GHz antenna for an automobile emblem according to the present invention
8 is a photograph showing a 77 GHz antenna and a measuring fixture used in the radiation performance test of the automobile emblem according to the present invention
9 is a view showing a result of a radiation performance test of a 77 GHz antenna for an automobile emblem according to the present invention
10 is a view showing another conventional automobile in which only a radiator grill is present at a mount position of a front radar for a vehicle

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. It is to be understood that the term "comprises" or "having" in the present application does not preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, an automobile emblem and a radiator grill according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view conceptually showing the role of a front and rear side radar for a vehicle currently mounted on an automobile.

1, the vehicle radar mounted on the vehicle 101 can be divided into a front radar 102 and a rear lateral radar 103, and the front radar 102 serves to assist the driver in driving the vehicle And the rear side radar 103 is used as a sensor for ensuring the safety of the driver.

The vehicle frontal radar 102 is a sensor for measuring the distance between the same lane 104 and a plurality of other cars 106a and 106b in front of the left and right lanes 105a and 105b, 106b to accelerate or decelerate on its own, to display a collision or a collision warning, and to assist the driver in driving the vehicle.

The vehicle rear side radar 103 is connected to the rear side of the same lane 107 and the left and right lanes 108a and 108b and a plurality of other cars 110a, 110b, It is possible to prevent a collision accident by generating a warning when the driver changes the lane dangerously even though the other cars 110c and 110b are on the side lanes, Is used as a sensor for collecting information so that the car 101 plays a role of pulling the seat belt by itself or setting the neckrest of the driver seat so as to secure the safety of the driver when the other car 110a in the car collides.

2 is a view showing an ideal mounting position of a front radar in a vehicle.

Currently, most vehicle front radar transmit radio waves with a frequency of 77 GHz in front and receive reflected radio waves from many other cars to calculate distances to other cars ahead.

Therefore, it is possible to minimize the phenomenon that the radio wave 201 transmitted from the vehicle front radar is reflected by the unnecessary object other than the preceding vehicle, for example, the vehicle body 202 or the ground surface 203 of the radar-equipped vehicle, , It is most preferable that the front radar for the vehicle is mounted at the front side of the automobile at a predetermined height or more from the ground.

Therefore, the most ideal mounting position of the vehicle front radar in the automobile is between the left and right headlights 204a and 204b, and the position may be different depending on the manufacturer and the design of the automobile, but the position is usually the case where the front radiator grill 205 exists The automobile emblem 206 attached to the grill 205 exists.

3 is a view showing a conventional automobile emblem and a radiator grill.

The automobile emblem 301 is a symbol representing an automobile manufacturer, and each manufacturer is shaped using a unique shape, a letter, or a logo. The radiator grill 302 is also used for the automobile manufacturer and the model of the company They have different shapes.

In this way, the shape of the car emblem and the radiator grill are different for each manufacturer and model, but most automobile emblems and radiator grills are basically made of silver color and metallic texture, texture and gloss For this purpose, a non-metallic component such as plastic or rubber is used as a base material to form its own shape, and the shape surface is plated with chromium.

2, when a vehicle front radar is mounted on the rear surface of the conventional automobile emblem 301 or the front radiator grille 302, the radio waves of the vehicle radar are transmitted and received through the emblem or the radiator grill, The electromagnetic wave propagation performance of the radar is affected by the emblem of the radiator grille or the metallic chromium plating layer of the radiator grill, and the overall performance of the vehicle radar is seriously degraded.

Accordingly, although the optimal mount position of the vehicle front radar is in the middle between the left and right headlights, it is impossible to solve the problem described in Fig. 3 in the past, so that the performance of the radar for the vehicle can be reduced, Location.

4 is a view showing conventional positions where a vehicle front radar is mounted.

As shown in FIG. 4 (a), when the area of the chrome plating is relatively small due to the inherent shape of the automobile emblem, it is mounted on the rear of the automobile emblem 401 while reducing the performance of the radar.

Thus, when mounted just behind the automobile emblem, the performance of the degraded radar can be compensated by other factors such as transmission power, antenna gain, or system loss, but it has the disadvantage of increasing the overall price of the vehicle radar , Since the radar can be covered by mounting the radar for the vehicle on the rear side of the automobile emblem, it does not affect the unique design of the automobile or the front grille, and thus has an advantage of being esthetically excellent.

However, the mounting position shown in FIG. 4 (a) is only possible in the shape of an automobile emblem having a relatively small chrome plating area, and it is impossible for most conventional automobiles to mount a vehicle front radar behind the automobile emblem.

As shown in FIG. 4 (b), a vehicle front radar is mounted on the rear radiator grill rear portion 402 near the emblem by avoiding the car emblem in the center, and in this case, a chrome- So that the chromium plated layer of the radiator grill in the mounted position is removed.

In this way, when mounted on the front radiator grille near the automobile emblem, there is an advantage that the radiator grill around the vehicle where the automobile emblem or the chrome plating layer is removed does not affect the performance of the radar, but the presence of the radar is exposed to the outside, It has a disadvantage that it can not be esthetically excellent because it ruins the unique design.

In addition, since the vehicle front radar is not mounted in the center of the vehicle, the radio waves reflected from the left and right and the surrounding environment are not symmetrical. Therefore, the overall performance of the vehicle radar deteriorates, An additional algorithm is needed to calibrate the sensor.

As shown in Fig. 4 (c), a vehicle front radar is mounted on the lower portion 403 of the front bumper near the ground, and this portion is generally made of a plastic or rubber-based non-metallic component .

When mounted on the lower part of the front bumper as described above, since the radar is mounted on the lower part of the bumper, the presence of the radar is not easily exposed and does not significantly affect the inherent design of the vehicle. On the other hand, It is possible to reduce the overall performance of the vehicular radar system.

The unnecessary reflected wave is called a clutter of the radar and acts as a main cause of deteriorating the overall performance of the radar. Therefore, it is necessary to add hardware for eliminating the clutter or applying a corresponding additional algorithm, With disadvantages.

As shown in Fig. 4 (d), a vehicle front radar is mounted in the front bumper interior 404, which is generally made of a plastic or rubber-based nonmetal component.

In this way, when mounted in the front bumper, the performance of the front radar for the vehicle caused by the reflection by the unnecessary object such as the ground or the chrome coating layer does not occur, and the presence or absence of the radar is also hidden. Even if the radar penetration loss occurs in summer, excessive temperature rise inside the bumper causes malfunction or malfunction of the radar. If the radar is repaired or replaced, the front bumper must be removed.

Therefore, it is not easy to set the optimum position of the front radar for the vehicle in which both the performance and the aesthetic effect of the radar are taken into consideration in a vehicle equipped with a conventional chrome-plated emblem and a radiator grille.

Therefore, it is only composed of non-metallic components so as not to affect the radiating performance of the emblem or the front radar of the vehicle mounted on the rear surface of the radiator grille, while having the silver luster of the same metal texture as the chrome plating applied to the conventional automobile emblem and the radiator grill It is necessary to develop a car emblem and a radiator grill and a manufacturing method thereof.

5 is a view showing an embodiment of a method of manufacturing an automobile emblem and a radiator grill according to the present invention.

As shown in FIG. 5, the automobile emblem and the method of manufacturing the radiator grill according to the present invention include a molding process 502 for forming a shape 501 of an automobile emblem or a radiator grill in a predetermined shape, A coating process 504 for coating the paint 503 and a paint manufacturing process 505 for making the paint 503. The respective processes are divided into a plurality of sequential operations.

In the present invention, injection molding is applied as an example in the molding step 502 for forming the shape 501. However, in addition to injection molding, compression molding, extrusion molding extruding, casting, and milling are all possible.

The base material 501 of the shape 501 of the automobile emblem and the radiator grill is basically a plastic or rubber material 506 and is generally made of polycarbonate (PC), polyvinyl chloride (PVC), polyethylene , Polypropylene (PP), polystyrene (PS), acrylonitrile butadiene styrene (ABS), polyoxymethylene (POM), polybutadiene (PBD), polyethylene terephthalate (EVA) a single material such as polymethyl methacrylate, polybutadiene terephthalate (PBDT), ethylene propylene rubber (EPR), ethylene propylene diene monomer (EPDM) and glass fiber, or a composite of the above single material is used. The material 506 is mixed with a suitable colorant 507 to have a specific color, i.e. a light color for a generally colored paint, and a number of details of the injection molding process 502 are shown in Figure 5 Proceeds in the order shown, and finally makes the image 501 of the automobile emblem or the radiator grille.

Next, in the step 504 of painting the shape of the automobile emblem and the radiator grill 501, electroplating is generally used for applying metallic coating such as chrome plating, and electroplating is used for coating the non- Powder coating or spray painting is mainly used. However, in the present invention, the vacuum deposition method is applied to the painting step 504 in which the paint 503 is coated.

The above-mentioned vacuum deposition method is a key point of the present invention. In general powder coating or spray painting, metal texture can be silver, but only the effect of no light or half light can be realized. It is possible to realize a full luminous effect.

Therefore, since the automobile emblem and the radiator grill according to the present invention are aimed to have the silver-colored brilliance of the metal texture by using the non-metallic paint 503, the paint 503 is coated by the vacuum evaporation method.

However, except for the two essential points of coating a plastic or rubber-like shape 501 with a vacuum deposition method and using a special paint 503 in which a large number of components are mixed in a special combination, Since the method is the same as the vacuum deposition method used in general, a plurality of sequential sub-operations follow a general vacuum deposition method.

Finally, the paint material 503, which has the silver color of the metal texture but exhibits the effect of luminous flux through vacuum deposition, is another important point of the manufacturing method according to the present invention. The paints 503 are all made of a non-metal component in order to easily pass the radio waves of the vehicle radar, and the respective components and their contents are shown in Table 1 below.

Ingredients CAS no. Weight% range Quartz 14808-60-7 0.1 to 8% Silicon dioxide 7631-86-9 0.1 to 7% Limestone 1317-65-3 5 to 20% Epoxy resin 25036-25-3 15 to 35% Hexanedioic acid polymer < RTI ID = 0.0 > 25214-14-6 17 to 45% Barium sulfate 7727-43-7 5 to 25%

When a special paint 503 containing a plurality of non-metallic components in the weight percentages of Table 1 is applied to the plastic or rubber-like shape 501 by the vacuum deposition method 504, silver luminous flux of the metal texture according to the present invention The car emblem or radiator grill 508 is completed.

6 is a photograph showing one embodiment of various prototypes of an automobile emblem.

6, an emblem 601 made of only plastic or rubber-based base material without plating or painting, a chromium-plated emblem 602 applied to a conventional automobile emblem, and a special paint are subjected to a vacuum deposition process Four prototypes of an emblem 603 according to the present invention, another emblem 604 according to the present invention painted in a vacuum deposition process with another special paint, were produced.

As shown in FIG. 6, it can be seen that the embodiment of the automobile emblem 603 according to the present invention has the same silver metal luminous flux as the conventional chrome-plated emblem 602, and as another embodiment An emblem having a brilliance of a metal texture of a desired color other than silver may be prepared by adjusting each component and its content of the special paint used in the present invention or adding a component showing a specific hue, The emblem 604 having the blue luminous flux of the blue light was further prepared as another embodiment.

Also, if only the shape is changed in the molding process, a car radiator grille can be manufactured in the same manner as described above.

7 is a view illustrating a radiation performance test of a 77 GHz antenna for an automobile emblem according to the present invention.

As described above, the automobile emblem and the radiator grill according to the present invention have silver brilliance of the same metal texture as the conventional chrome-plated emblem and the radiator grill, while the car front radar mounted on the rear side of the radiator grill It must be able to send or receive radio waves in the air without diminishing or changing performance.

Therefore, in order to measure the change in the radiation performance of the front radar for a vehicle using the automobile emblem according to the present invention, a 77 GHz antenna 701 widely used in the conventional vehicle front radar is applied to improve the radiation performance of the antenna Respectively.

The radiation performance test of the 77 GHz antenna 701 was conducted in a millimeter-wave anechoic chamber (~ 110 GHz) 702 possessed by the Electromagnetic Wave Technology Institute (EMTI) belonging to RAPA, (2) In the case where only the shape of an automobile emblem 601 composed of a plastic or rubber-based base material which is not plated or coated on the measuring jig is 601, (4) a case where there is an automobile emblem according to an embodiment of the present invention (603) in a measuring jig, (5) a case where a measuring jig has a chrome-plated automobile emblem And the case where there is another embodiment 604 of the automobile emblem according to the present invention, the radiation performance of the 77GHz antenna 701 under the respective conditions was measured and compared.

8 is a photograph showing a 77 GHz antenna and a measuring fixture used in the radiating performance test of the automobile emblem according to the present invention.

As shown in FIG. 8, the 77 GHz antenna 801 used in the measurement is a 20 dBi gain pyramid sphere using a standard waveguide of WR-12 as an antenna of model SAR-2013-12-S2 manufactured by SAGE Millimeter, Inc. An input of the antenna is a standard waveguide flange of UG-387 / U so that it can be connected to the transmitter waveguide of the millimeter chamber (~ 110GHz), which is a pyramidal horn antenna.

The measurement fixture 802 is designed and manufactured to comply with the test and is attached to the 77 GHz antenna 801 to easily detach the various measured automobile emblems 803.

9 is a graph showing a result of a radiation performance test of a 77 GHz antenna for an automobile emblem according to the present invention.

As shown in FIG. 7, the radiation performance test of the 77 GHz antenna is performed in the following cases: (1) the measurement fixture has only a 77 GHz antenna (901a, 901b) without an automobile emblem; (2) (902a, 902b), (3) a case where a conventional chrome-plated automobile emblem exists in the measuring jig (903a, 903b), (4) (904a, 904b) according to an embodiment of the automobile emblem according to the present invention, (5) a case where the measuring jig has the automobile emblem according to another embodiment of the present invention (905a, 905b) H-pattern) and vertical pattern (E-pattern) were measured.

As shown in Fig. 9A, in the case where only a 77 GHz antenna is used (901a) without a car emblem in the horizontal pattern (H-pattern) of the 77 GHz antenna, the measuring jig affects the radiating pattern of the antenna It has the same radiation pattern 901a as a horizontal pattern of a general standard horn antenna with a gain of about 20.5 dBi.

In the case where only the shape of the automobile emblem composed of the plastic or rubber base material not plated or coated in the measuring jig is present (902a), as shown in Fig. 6, the automobile emblem used for the measurement has a specific shape Therefore, a plastic or rubber series partly has a distorted horizontal pattern 902a, since the medium reflects the radio waves radiated from the antenna and diffraction of the propagation occurs at the boundary between the medium and the air.

However, as compared with the case (904a) in which an embodiment of the automobile emblem having the silver brilliance of the metallic texture according to the present invention is present in the measuring jig and the case (905a) in which there is another embodiment having the blue brilliance of the metallic texture, Distortion 902a of the radiation pattern is generated by the base material of the rubber-based automobile emblem, but since the radiation pattern of the present invention does not cause any change in the radiation pattern 902a, 904a, 905a, It can be confirmed that the coating material does not reflect the radio wave.

In order to reliably show the effect of the coating material according to the present invention, in the case where a conventional chromium-plated automobile emblem is provided on the measuring jig (903a), the radiation pattern of the 77 GHz antenna was measured and the measurement was made using plastic or rubber- It can be seen that the horizontal pattern 903a which is more distorted by the metallic medium of chromium is compared with the case of only the shape of the composed car emblem 902a.

However, even if the chrome-plated metal layer blocks the propagation of the conventional automobile emblem, the entire shape of the automobile emblem is not clogged by the specific shape of the automobile emblem, Do not.

9B shows measurement results 901b, 902b, 903b, 904b, and 905b of a vertical pattern (E-pattern) of a 77 GHz antenna and a specific shape of an automobile emblem is changed. It can be confirmed that the same phenomenon as the horizontal patterns (H-patterns) 901a, 902a, 903a, 904a, and 905a described in FIG. 9A occurs.

As a result, the automobile emblem according to the present invention has been actually manufactured, and the influence of the automobile radar by the emblem has been tested. As a result, it has been found that even when the automobile radar has the silver- The effect of passing through without any decrease was confirmed.

As described above, according to the manufacturer or the model of the automobile, the unique design is different, and only the radiator grill may be present at the mount position of the front radar for the vehicle, not the emblem.

10 is a view showing another conventional automobile in which only a radiator grill is present at a mount position of a front radar for a vehicle.

As shown in Fig. 10, only the front radiator grill 1002 exists in the ideal mounting position 1001 of the vehicle front radar, and the automobile emblem 1003 is attached onto the bonnet.

10, the front radiator grill 1002 positioned on the front surface of the vehicle front radar 1001 can be manufactured by applying the same manufacturing method as that of the automobile emblem according to the present invention described in FIG. 5, It is easy to predict that even with the silver luster of the same metal texture as the chrome-plated radiator grille of the car, it is possible to make the propagation of the vehicle front radar pass well without distortion or performance degradation.

The present invention has been described with reference to the preferred embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

101: Cars
102: Front radar coverage
103: rear radar coverage
104: The same lane ahead
105: Left and right lanes ahead
106: Another car ahead
107: the same lane in the rear
108: rear left and right lanes
109: Blind side of side
110: Another car in the rear
201: a wave transmitted from the front radar,
202: Body of the vehicle
203: ground
204: Right and left headlights of vehicles
205, 302, 1002: front grille of a car,
206,301,1003: Automobile emblem
401 to 404: One embodiment of front radar mounting position
501: Shape of car emblem
502: Molding process of automobile emblem
503: Automotive emblem non-metallic paint
504: Painting process of automobile emblem
505: Painting process of automobile emblem
601: Car emblem consisting of base material only
602: Chrome plated car emblem
603,803: An automobile emblem according to the present invention
604: Another embodiment of the automobile emblem according to the present invention
701,801: 77 GHz antenna for measurement
702: millimeter wave chamber
801: 77 GHz antenna for measurement
802: Measuring jig
901 ~ 905: 77 GHz antenna radiation pattern measurement result
1001: Vehicle front radar

Claims (5)

delete An emblem attached to the vehicle and a radiator grille located on the front side,

The emblem and the radiator grille are made of a basic material made of a non-metal component as a basic material

A paint of a non-metallic component showing silver light of a metal texture is adhered to the surface of the emblem and the radiator grill through a vacuum evaporation process with a thin film

The non-metallic component paint

0.1 to 8% by weight of quartz (CAS No. 14808-60-7), 0.1 to 7% by weight of silicon dioxide (CAS No. 7631-86-9), limestone (CAS No. 1317 And epoxy resin (CAS No. 25036-25-3) in an amount of 15 to 35% by weight, hexanedioic acid polymer (CAS No. 25214-14 (Barium sulfate) (CAS No. 7727-43-7) is contained in an amount of 5 to 25% by weight

An automobile emblem and a radiator grille
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