KR102160944B1 - Sensor Cover For Car Cruise Control And Manufacturing Method For The Same - Google Patents

Abstract

Disclosed are a sensor cover for vehicle driving control, capable of enabling the transmission of a detection radio wave for vehicle driving control, and a manufacturing method thereof. According to the present invention, the sensor cover for vehicle driving control includes: a front cover made of a resin material enabling the transmission of a detection radio wave for vehicle driving control; a cover base formed behind the front cover and fixed to the front cover as an integrated body; and a cover heating element emitting heat and provided between the front cover and the cover base to heat the front cover. According to the present invention, since frost or snow and other moisture components existing on the surface of the sensor cover can be quickly and easily removed in a low-temperature environment or an external environment such as snowing, the sensor cover can minimize or prevent a deterioration in the performance of the sensor cover, such as the transmission performance of a detection radio wave (radar), and can maintain a radar attenuation factor at a stable level.

Description

Sensor Cover For Car Cruise Control And Manufacturing Method For The Same}

The present invention relates to a vehicle driving control sensor cover that transmits detection radio waves emitted from a detection sensor for vehicle driving control, and a manufacturing method thereof, and more particularly, to a heat generating method to remove moisture such as snow or frost from the surface. It relates to a vehicle driving control sensor cover having a possible structure and a manufacturing method thereof.

In recent years, technologies for automatic driving control such as an adaptive cruise control (Smart Cruise Control) system (adaptive driving system) have been applied to automobiles, and the adaptive driving control is'responsive driving. It is also called'control' or'intelligent driving control'.

The adaptive driving system is a system for a function of automatically controlling a driving speed and a distance between vehicles. The system operates in the vehicle's set speed range, greatly reducing the driver's burden while driving.

1 to 2, the adaptive driving system detects a front object such as a preceding vehicle using a detector 1 mounted on the vehicle and automatically controls the engine/brake of the vehicle. As a specific example, the adaptive driving system safely controls the speed of the vehicle to reduce the speed or change the lane to avoid the preceding vehicle, and when there is no preceding vehicle within a certain distance, the vehicle accelerates again to the initially set speed and then cruises at the cruise. It is a system that makes it possible.

In other words, the adaptive driving system, that is, the smart cruise system, includes a detection sensor 1 mounted on a vehicle, for example, a detection sensor using a radar, and the detection sensor measures a distance and a relative speed with the preceding vehicle. It is detected, and based on a signal detected by the detection sensor, a distance between a vehicle and a lane change or the like is automatically controlled.

In order to protect the aforementioned adaptive driving system, a sensor cover 2 for sensor protection is disposed in front of the detection sensor, for example, the radar, and the sensor cover 2 includes the detection sensor ( The detection sensor 1 is protected from external environments (such as debris or weather) while driving without interfering with the transmission and reception of detection radio waves output from 1).

The detection sensor 1 is installed in the center of the front of the vehicle, for example, at the rear of the engine grill 3; the radiator grill 3 has an emblem or logo unique to an automobile manufacturer, or has an aesthetic and high-quality texture. For this purpose, the lighter grille plays an important role in the front design of the vehicle by forming a predetermined pattern with metal plating.In recent years, the sensor cover 2 has the same design as the radiator grille 3 and a metal texture pattern or manufacturer The emblem/logo of is formed.

The above-described vehicle driving control sensor cover 2 must have a radio wave transmittance of a predetermined level or higher so that radio wave transmission and reception by the detection sensor can be performed smoothly, and because it is exposed to the external environment, it is Accordingly, the decrease in performance, more specifically, the decrease in radio wave transmission performance due to changes in the external environment should be minimized or prevented.

Japanese Laid-Open Patent Publication No. 2007-240358 Korean Patent Application Publication No. 10-2015-0095411 Republic of Korea Patent Publication No. 10-2018-0130609

An object of the present invention is to provide a vehicle driving control sensor cover having a heat generating structure and a method of manufacturing the same so that deterioration of the adaptive driving system due to snow or frost can be prevented or minimized.

One aspect of the present invention is a vehicle driving control sensor cover that transmits detection radio waves for vehicle driving control, comprising: a front cover made of a resin material capable of transmitting detection radio waves for vehicle driving control; A cover base formed at the rear of the front cover and integrally fixed to the front cover; In addition, in order to heat the front cover, it is provided between the front cover and the cover base and provides a vehicle driving control sensor cover including a cover heating element capable of generating heat.

The cover heating element; It may include a base film interposed between the front cover and the cover base, and a conductive heating wire provided in the base film and capable of generating heat by electric resistance.

The base film may be formed of a material including a resin such as polycarbonate (PC), polyimide (PI), or polyethylene terephthalate (PET).

The vehicle driving control sensor cover may further include an inner resin layer disposed between the cover heating element and the front cover.

Irregularities are formed on the rear surface of the front cover; The inner resin layer fills the irregularities formed on the rear surface of the front cover to remove the irregularities and prevents the cover heating element from being bent.

The front cover and the inner resin layer may be formed of a material including a resin such as polycarbonate (PC), acrylonitrile-Styrene-Acrylate (ASA), and Acrylonitrile-EPDM-Styrene (AES).

Another aspect of the present invention is a method of manufacturing a vehicle driving control sensor cover that transmits detection radio waves for vehicle driving control, comprising: on the rear of a front cover made of a resin material capable of transmitting detection radio waves for vehicle driving control. (A) manufacturing a heating type cover member by fixing a cover heating element for heating the front cover; And it provides a method of manufacturing a vehicle driving control sensor cover comprising the step (b) of integrally disposing a cover base covering the cover heating element from the rear of the cover heating element to the rear of the heating type cover member.

The (b) step; It may include an insert injection step of inserting the heating type cover member into a mold and then injecting resin to form the cover base at the rear of the heating type cover member.

The (b) step; It may include a base fixing step of disposing the cover base pre-manufactured in a predetermined shape at the rear of the heating type cover member and fixing the cover base to the rear of the heating type cover member by fusion or adhesion method.

The (a) step; A step (a1) of forming the cover heating element at the rear of the front cover by integrating a base film provided with a conductive heating wire at the rear of the front cover may be included.

In the step (a), in order to fill the irregularities formed on the rear surface of the front cover, an internal resin layer on the rear of the front cover is performed by an assembly method, an attachment method, or an insert injection method before step (a1). It further comprises the step (a2) of stacking; The step (a1) may include fixing the cover heating element to the rear surface of the inner resin layer.

The sensor cover for vehicle driving control and a method of manufacturing the same according to the present invention have the following advantages.

First, according to the present invention, since moisture such as frost, snow and other moisture existing on the surface of the sensor cover can be quickly and easily removed in an external environment such as a low temperature environment or snowfall, the performance of the sensor cover, that is, detection propagation (radar propagation) A phenomenon in which the transmission performance of the device is deteriorated can be minimized or prevented, and the radar attenuation rate can be maintained at a stable level.

Second, according to the present invention, since the inner resin layer is formed to flatten the surface by filling the irregularities on the rear surface of the front cover on which the surface irregularities are formed, the transmission performance of detection radio waves is improved due to the surface irregularities to form a three-dimensional pattern on the sensor cover. The deterioration can be minimized or prevented, and when the cover heating element is applied to the rear surface of the front cover on which the surface irregularities are formed, the deformation of the cover heating element is not required, so that damage to the heating wire due to the deformation of the cover heating element can be prevented. By implementing the front cover and the inner resin layer of the same material, for example, a PC material, the integrity of the front cover and the inner resin layer is reinforced, and performance degradation of the sensor cover can be minimized or prevented.

Third, according to the present invention, more specifically, the conductive heating wire on the base film is formed on the PC base film at a predetermined thickness and interval, so that the heating performance and radar transmission performance are excellent, and the detection distance, angle, and sensitivity An excellent heating type sensor cover can be implemented.

Features and advantages of the present invention may be better understood with reference to the drawings described below along with a detailed description of embodiments of the present invention to be described later, among the drawings:
1 is a view schematically showing a state in which a conventional vehicle driving control sensor cover is installed on a radiator grill;
2 is an image showing a driving state of a vehicle having an adaptive driving system;
3 is a schematic cross-sectional view showing a sensor cover for vehicle driving control according to an embodiment of the present invention;
4 is a cross-sectional view showing an example of a front cover applicable to the sensor cover shown in FIG. 3;
5 is a cross-sectional view schematically showing a sensor cover for vehicle driving control according to another embodiment of the present invention;
6A and 6B are views illustrating a manufacturing process of the sensor cover shown in FIG. 5;
7 is a cross-sectional view schematically showing a sensor cover for vehicle driving control according to another embodiment of the present invention;
8 is a flowchart showing an embodiment of a method of manufacturing the sensor cover shown in FIG. 7;
9 is a flow chart showing an embodiment of a method of manufacturing the sensor cover shown in FIG. 7; And
10 is a plan view showing an example of a cover heating element applicable to the sensor cover for vehicle driving control according to the present invention.

Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be realized in detail will be described with reference to the accompanying drawings. In describing the present embodiment, the same name and the same reference numeral are used for the same configuration, and additional descriptions thereof will be omitted below. In addition, descriptions are omitted or minimized for technologies already known in the art.

Terms used in the present specification are used to describe embodiments of the present invention and are not intended to limit the present invention. For example, terms including ordinal numbers such as "first" and "second" may be used to distinguish each other when describing elements of the same name, but do not define or limit the number of elements.

And when a component is referred to as being "equipped", "connected", "connected" or "coupled" to another component, it is directly provided or connected to or connected to the other component. It should be understood that it may be combined or may be combined, but also includes a connection relationship in which other components exist in the middle, that is, a relationship that is indirectly connected.

In the present specification, terms such as "comprise" or "have" mean the existence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, and one or more other features It should be understood that the presence or addition of numbers, steps, actions, components, parts, or combinations thereof does not exclude the possibility of addition.

First, a sensor cover for vehicle driving control according to an embodiment (first embodiment) of the present invention will be described with reference to FIGS. 3 and 4. 3 is a schematic cross-sectional view illustrating a sensor cover for vehicle driving control according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating an example of a front cover applicable to the sensor cover illustrated in FIG. 3.

The vehicle driving control sensor cover 100 (hereinafter referred to as'sensor cover') according to the first embodiment of the present invention is a vehicle driving control sensor cover that transmits detection radio waves for vehicle driving control, and is a radio wave detection sensor for vehicle driving control. It is provided in front of the (wave detector), for example, on a radiator grill, and can be applied as a sensor protection cover to protect the detection sensor from an external environment. The sensor cover 100 is also referred to as an SCC cover (Smart Cruise Control Cover) or an ACC (Adaptive Cruise Control) cover.

The above-described sensor cover 100 includes a front cover 110 made of a resin material capable of transmitting detection radio waves for vehicle driving control, and is formed at the rear of the front cover 110 and integrally with the front cover. It includes a cover base 120 (Cover Base) fixed to, and a cover heating element 130 provided between the front cover and the cover base to heat the front cover and capable of generating heat.

The front cover 110 forms the front surface of the sensor cover 100, and transmits detection radio waves emitted from the detection sensor, for example, radar radio waves emitted from a radar device, to the front of the vehicle and reflects it from the subject. The incident wave (reflected wave) is transmitted backward.

Referring to FIG. 4, an example of the front cover 110 includes a cover panel 111, a cover pattern 112 provided at the rear of the cover panel 111, and a rear of the cover pattern 112. It may be implemented as a multilayer structure including a shielding layer 113 that is stacked on and protects the cover pattern 112. A primer may be applied to the rear surface of the cover panel 111 to stably conceive of the cover pattern.

The cover panel 111 is configured to form the front surface of the front cover 110. In this embodiment, the cover panel 111 is a plastic panel, for example, a transparent plastic molded product, and a more specific example is polycarbonate. A transparent plastic panel manufactured by injection molding using various types of resins such as (PC; Polycarbonate), for example, a transparent panel, but is not limited thereto. The cover panel 111 forms the skeleton of the front cover, and is not limited to a flat plate, but may be implemented in various shapes such as a curved structure.

And the cover pattern 112, when viewed from the front of the cover panel 111, a portion forming a pattern that is visually recognized (visually recognized) by a predetermined pattern, for example, a vehicle manufacturer's emblem or logo, or a design of a radiator grill. As an example, it is possible to implement a metal texture pattern, that is, a color of a metal tone.

To describe an example of the cover pattern 112 in more detail, the cover pattern 112 includes titanium dioxide (TiO ₂ ), silica (SiO ₂ ), germanium (Ge), and chromium or chromium oxide (for example, For example, Cr ₂ O ₃ ) or indium may be included, but the material is not limited thereto and may be variously changed.

The cover pattern 112 may be coated by known deposition techniques, for example, PECVD (plasma enhanced chemical vapor deposition) and E-beam deposition, but is not limited thereto.

The method of forming the cover pattern 112 on the cover panel 111 is various, and a pattern forming material coated on the back surface of the cover panel 111 is partially removed through a primer (for example, a laser etching method). Removal), or may be coated with a pattern forming material after shielding the rear of the cover panel 111 with a mask having a predetermined shape to form the above-described cover pattern. Since the cover pattern is known in the prior art documents described in this specification (multilayer optical film disclosed in Patent Document 3 of the prior art document), an additional description thereof will be omitted. Of course, by omitting the cover pattern, a sensor cover having no pattern may be implemented.

In addition, the shielding layer 113 may be implemented by a heat-resistant paint made of an opaque material. The shielding layer 113 protects the cover pattern, implements a black color on the front cover 110, and increases heat resistance. Although not shown, the front surface of the cover panel 111 may be hard coated to protect the surface. A hard coating material for protecting the surface of a plastic molded article, that is, a surface protection material, is known in various ways, and thus will be described additionally.

In this embodiment, the cover base 120 is made of a resin material integrally fixed to the rear of the front cover 110, more specifically to the rear of the cover heating element 130, and the front cover ( 110) to make the thickness of the sensor cover uniform by compensating for the thickness deviation of the sensor cover, and to reinforce the strength by supporting the front cover 110, and the sensor cover 100 may be attached to a predetermined part of the vehicle, for example, a radiator. It can function as a structure that is fixed to the center of the grill, that is, a cover bracket or a cover holder.

In the present embodiment, the cover base 120 is made of ASA (Acrylonitrile-Styrene-Acrylate) material, AES (Acrylonitrile-EPDM-Styrene), ABS (Acrylonitrile-Butadiene-Styrene), PC (Polycarbonate), etc. It can be made of a material.

ASA is a plastic that has excellent impact resistance and weather resistance. It is a material that exhibits excellent balance of properties under a wide range of environmental conditions. In outdoor use over a long period of time, the degradation of properties and changes in the appearance of molded products are significantly smaller than ABS. It has the balance of physical properties and all the moldability required for it. In addition, the PC has excellent heat resistance and weather resistance, and has less influence on the attenuation rate of the radar than the detection radio wave.

In this embodiment, the cover heating element 130 is disposed between the front cover 110 and the cover base 120 to generate heat by power supply, and the front cover 110 and the cover base 120 It may include a base film 122 (base film) inserted therebetween, and a conductive hot wire 132 provided in the base film 131.

The base film 131 is a plastic thin film capable of transmitting detection radio waves, for example, a resin such as polycarbonate (PC), polyimide (PI), or polyethylene terephthalate (PET). It can be formed of (Resin) material. The front cover 110, more specifically, the cover panel 111 is made of a PC material having excellent radio wave transmission in consideration of a radar attenuation rate, and the base film is also made of the same material, that is, a PC material. It is good for the development of the performance and prevention of interlayer gaps.

The PC material base film 131 can ignore the effect on the attenuation rate of radio waves, and when considering the difference in thermal expansion coefficient from other components in the insert injection molding method, the material of the base film 131 is made of PC material. It is more stable to do it.

The heating wire 132 is a conductive wire capable of generating heat due to electrical resistance, and is made of a conductive material such as a conductive material such as copper (Cu), silver (Ag), or carbon, or an alloy material including such conductive material. It can be made of lines. The heating wire 132 may be provided in a printed form on the surface of the base film 131, and more specifically, the heating wire on the front surface of the base film 131, that is, a surface in contact with the front cover 110 ( 132) is provided.

The cover heating element 130 according to the present embodiment is attached to the rear surface of the front cover 110 and may be integrally fixed to the rear surface of the front cover 110 by, for example, an adhesive method or a thermocompression method. The fixing method of the cover heating element 130 is not limited thereto.

In addition, the cover base 120 may be fixed to the rear of the cover heating element 130 by fusion bonding or bonding or other attachment method, or may be formed at the rear of the cover heating element 130 by insert injection molding. For example, after manufacturing a heating type cover member by fixing the cover heating element 130 to the rear surface of the front cover 110, a separately pre-manufactured cover base 120 is fused by injection molding or other methods. For example, it may be coupled to the rear surface of the heating type cover member by an attachment method such as laser fusion) or adhesion.

Alternatively, after manufacturing a heating type cover member by fixing the cover heating element 130 to the rear surface of the front cover 110, insert the heating type cover member into a mold and resin, for example, ASA in a molten state. B. By injecting a PC, the above-described cover base 120 can be integrally formed on the rear surface of the heat generating cover member.

On the back of the cover base 120, a wire hole 121 for drawing out power supply wires (P1, P2) is formed, and an insulating material 122 such as epoxy or urethane is injected into the wire hole 121 for waterproofing. Then, the terminals 133 and 134 of the cover heating element and the electric wires P1 and P2 are connected through the electric wire hole 121. Accordingly, penetration of moisture through the electric wire hole 121 can be prevented, and the electric wire can be firmly fixed to the sensor cover.

Next, another embodiment (second embodiment) of the sensor cover according to the present invention will be described with reference to FIGS. 5 and 6A and 6B.

The sensor cover 100A according to the second embodiment of the present invention is formed in a curved shape in accordance with the front cover 110 having the irregularities 110a formed on the rear surface and the irregularities formed on the rear surface of the front cover 110 It includes a cover heating element 130 having a (formed) structure, and a cover base 120 covering the rear surface of the cover heating element 130.

The unevenness 110a formed on the rear surface of the front cover 110, for example, an intaglio portion imparts a three-dimensional effect to the above-described cover pattern 112. In addition, the cover heating element 130 is bent in accordance with the curve of the rear surface of the front cover 110. For example, by placing the cover heating element 130 in a molding mold having the same shape as the rear bending of the front cover 110 and pressing it with heat/pressure, the cover heating element 130 is formed, that is, bent in a predetermined shape. Can be processed.

Although the heating wire is not shown in FIG. 5, the cover heating element 130 in this embodiment may also be composed of a heating wire film including a base film and a conductive heating wire, as described in the first embodiment. After the film is put into a mold and molded into the same shape as the curved rear surface of the front cover 110, it is fixed to the rear surface of the front cover 110 or the front surface of the cover base 120. Of course, it is natural that the forming method of the cover heating element 130 is not limited to the above-described example.

According to the present embodiment, even when irregularities are formed on the rear surface of the front cover 110, particularly on the rear surface of the cover panel 111, in order to implement the cover pattern 112 of the metal tone with a three-dimensional feel, the front cover 110 and the Since the interface of the cover heating element 130 and the interface between the cover heating element 130 and the cover base 120 can be completely in close contact without a gap, a three-dimensional effect can be realized and a decrease in radar transmittance can be minimized.

Next, examples of manufacturing the sensor cover 100A having the above-described structure will be described with reference to FIGS. 6A and 6B.

Referring to FIG. 6A, after the cover heating element 130 is formed in the same shape as the curved rear surface of the front cover 110. The cover heating element 130 is fixed to the rear surface of the previously manufactured front cover 110. The cover heating element 130 may be pressed to the rear side of the front cover 110 by a thermocompression tool 210 and fixed to the front cover 110, or the front cover ( 110) can also be attached to the back.

And the cover base 120, as described in the above-described first embodiment, is fixed to the rear of the cover heating element 130 by fusion bonding or adhesion or other attachment method, or by insert injection molding the cover heating element ( 130) can be formed in the rear. 5, 6A and 6B, the cover base 120 may have a shape that engages with the rear surface of the cover heating element 130, that is, a structure having a protrusion that engages with the intaglio portion of the cover heating element. have.

When the cover base 120 is molded at the rear of the cover heating element 130 by an insert injection method, a bonding paint is also applied to the rear surface (rear surface) of the cover heating element 130 in order to improve the integrity with the cover base 120 Can be applied. That is, before the insert injection step of the cover base 120, a bonding paint may be applied to the rear surface of the cover heating element 130.

Referring to FIG. 6B, after the cover heating element 130 in the form of a flat film is formed into a predetermined shape. The cover heating element 130 is fixed on the front surface of the pre-manufactured cover base 120. The cover heating element 130 may be pressed toward the front side of the cover base 120 by a thermocompression tool 220 to be fixed to the cover base 120, and the cover base ( 120) can also be attached to the front.

In addition, the front cover 110 may be fixed to the front of the cover heating element 130 by fusion bonding or bonding, or may be formed in front of the cover heating element 130 by insert injection molding.

When the cover base 120 is molded in front of the cover heating element 130 by an insert injection method, a bonding paint may be applied to the front surface of the cover heating element 130 to improve integrity.

Next, embodiments of a sensor cover and a method of manufacturing the same according to another embodiment 100B of the present invention will be described with reference to FIGS. 7 to 9.

The sensor cover 100B according to the present embodiment includes a front cover 110 made of a resin material capable of transmitting detection radio waves for vehicle driving control, and is formed at the rear of the front cover 110 and integrally with the front cover. It includes a cover base 120 fixed to, and a cover heating element 130 provided between the front cover and the cover base to heat the front cover and capable of generating heat.

In addition, the sensor cover 100B according to the present embodiment further includes an inner resin layer 140 provided between the front cover 110 and the cover heating element 130.

In this embodiment, as described in the second embodiment described above, irregularities are formed on the rear surface of the front cover 110 to form the cover pattern 112 giving a three-dimensional effect. In addition, the inner resin layer 140 removes the irregularities by filling the irregularities formed on the rear surface of the front cover 110 and prevents the cover heating element 130 from being bent.

In other words, the inner resin layer 140 fills the surface irregularities of the front cover 110 so that the bonding interface between the front cover 110 and the cover heating element 130 is even. For example, the rear surface of the inner resin layer 140 becomes a flat shape or a gently curved shape, and accordingly, it is necessary to bend the cover heating element 130 even when irregularities are formed on the rear surface of the front cover 110 There is no damage to the heating wire due to forming the cover heating element 130 in a predetermined shape corresponding to the surface irregularities of the front cover 110 may be prevented.

The inner resin layer 140 may be formed of various types of resins such as PC, ASA, AES, etc., and an inner resin layer having a front structure of a shape (interlocking shape) corresponding to the irregularities on the rear surface of the front cover 110 After manufacturing 140 and the front cover 110, respectively, the inner resin layer 140 may be assembled on the rear surface of the front cover 110, or may be attached by a method such as fusion bonding or adhesion. The above-described irregularities may be implemented in various shapes according to the design specifications of the sensor cover, such as a curved intaglio shape or an angled shape.

Of course, the inner resin layer 140 may be integrally molded on the rear surface of the front cover 110 by insert injection. For example, after the front cover 110 is first manufactured, inserting the front cover 110 into a mold and then injecting/curing resin into the back surface of the front cover 110 The resin layer 140 may be integrally formed.

When the front cover 110 and the inner resin layer 140 are formed of the same material, it is good in terms of radar transmittance or for strengthening the integrity between the two components, for example, both the front cover 110 and the inner resin layer 140 All of them can be formed of materials such as PC (Polycarbonate), ASA (Acrylonitrile-Styrene-Acrylate), and AES (Acrylonitrile-EPDM-Styrene).

The cover heating element 130 may be fixed to the rear surface of the inner resin layer 140 in various ways, such as adhesion. In addition, the cover base 120 may also be disposed at the rear of the cover heating element by an attachment method such as adhesion or fusion bonding or an insert injection molding method, as described in the above-described first embodiment.

Hereinafter, embodiments of a method of manufacturing a third embodiment 100B of a sensor cover according to the present invention will be described with reference to FIGS. 8 and 9. However, it is natural that the method of manufacturing the third embodiment of the present invention is not limited to the examples described later.

Referring to FIG. 8, a method of manufacturing a sensor cover (a method of manufacturing a sensor cover) according to an embodiment of the present invention is a method of manufacturing a sensor cover for vehicle driving control that transmits detection radio waves for vehicle driving control.

In the method of manufacturing a sensor cover according to the first embodiment, a cover heating element 130 for heating the front cover is fixed to the rear of the front cover 110 made of a resin material capable of transmitting detection radio waves for vehicle driving control. Step (a) of manufacturing a heating type cover member (S100), and the cover base 120 covering the cover heating element 130 from the rear of the cover heating element 130 is integrally disposed at the rear of the heating type cover member (b) step (S200).

In the step (a) (S100), the cover heating element 130 is formed at the rear of the front cover 110 by integrating a film, that is, a base film provided with a conductive heating wire at the rear of the front cover 110. (a1) step (S110).

More specifically, in order to manufacture the third embodiment (100B) of the sensor cover according to the present invention, the (a) step (S100) includes an inner resin layer 140 on the rear of the front cover 110. It further includes a stacking (a2) step (S120).

In the step (a2) (S120), in order to fill the irregularities formed on the rear surface of the front cover 110, the front cover 110 is provided by an assembly method, an attachment method, or an insert injection method before step (a1). This is a step of forming the inner resin layer 140 on the rear side of the.

In addition, in step (a1) (S110), a step of fixing the cover heating element 130 to the rear surface of the inner resin layer 140 is performed.

In the step (b) (S200), after inserting the heating type cover member into a mold (S210), resin is injected (S220) to form the cover base 120 at the rear of the heating type cover member (S230) And the insert injection step.

Through the above-described process, the cover heating element 130 is embedded between the front cover 110 and the cover base 120, and in particular, a sensor cover having a heating type cover member to which the inner resin layer 140 is added. 100B) can be prepared.

Next, referring to FIG. 9, another embodiment of a method for manufacturing a sensor cover according to the present invention is provided by fixing a cover heating element 130 for heating the front cover 110 to the rear of the front cover 110 described above. Step (a) of manufacturing a heating type cover member (S100), and the cover base 120 covering the cover heating element 130 from the rear of the cover heating element 130 is integrally disposed at the rear of the heating type cover member (b) step (S200A).

In step (a) (S100), since the method described in the embodiment of the method for manufacturing the sensor cover may be applied in the same manner, a repetitive description is omitted.

In the present embodiment, in step (b) (S200A), the cover base 120, which is pre-manufactured in a predetermined shape, is disposed at the rear of the heating type cover member (S210A), and the cover base 120 is A base fixing step of bonding (S220B) that is fixed to the rear of the heat generating cover member by fusion bonding or bonding method.

Through the above-described process, the cover heating element 130 is embedded between the front cover 110 and the cover base 120, and in particular, a sensor cover having a heating type cover member to which the inner resin layer 140 is added. 110B) can be prepared.

Meanwhile, FIG. 10 shows an example of a cover heating element applicable to the sensor cover according to the present invention, and has a structure in which a conductive heating wire 132 is formed in a predetermined pattern on the front surface of the base film 131.

The base film 131 has a transparent thin film structure made of a resin material, and may be made of, for example, a PC material. In addition, the heating wire 132 may be formed of a plurality of lines arranged parallel to each other in a series connection structure or a parallel connection structure, and the heating wire is made of a conductive material such as copper, silver, or carbon, or an alloy thereof, as described above. And, more specifically, a heating wire made of 99% or more of silver (Ag), copper, carbon, pure silver, etc. may be used. However, the material of the heating wire 132 is not limited to the above-described example, and a mixed material of conductive wire materials such as copper and silver, for example, a mixed material of 90% copper and 10% silver is also possible, and various other types of Conductive materials can be used.

The spacing of the heat wires 132 is 3.5mm to 9mm, and if the spacing of the heat wires is less than 3.5mm, it is difficult to transmit detection radio waves, that is, radar waves, and if it exceeds 9mm, heat generation performance is deteriorated.

In addition, the thickness (thickness) of the heating wire 132 is 0.1mm to 1mm, and the thinner the heating wire is, the better the transmittance of radar waves is good, and the thicker the heating wire is, the better the heating performance. It is difficult to form (print), and if it exceeds 1 mm, the radar transmission performance is deteriorated.

Accordingly, in a specific embodiment of the cover heating element for the present invention, in consideration of the attenuation rate of the radar wave and the heating performance, the spacing of the heating wires 132 is 3.5mm to 9mm, and the thickness of the heating wire 132 is 0.1mm to It is implemented in 1mm. In addition, the base film 131 may be a PC film having a thickness of 0.075mm to 0.15mm, and more specifically, a thickness of 0.1mm to 0.15mm, for example, a thickness of 0.125mm may be applied, and the heating wire 132 ) Can be applied in parallel structure to reduce the resistance value. In FIG. 10, reference numerals 133 and 134 denote terminals for wire connection, and a power supply wire is connected to the terminals 133 and 134.

As described above, a preferred embodiment according to the present invention has been examined, and the fact that the present invention can be embodied in other specific forms without departing from its spirit or scope other than the above-described embodiments is known to those skilled in the art. This is obvious to them.

Therefore, the above-described embodiments are to be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the above description and may be modified within the scope of the appended claims and equivalents thereof.

100, 100A, 100B: sensor cover
110: front cover 111: cover panel
112: cover pattern 113: shielding layer
120: cover base 130: cover heating element
131: base film 132: heating wire
133, 134: terminal

Claims (11)

As a vehicle driving control sensor cover that transmits detection radio waves for vehicle driving control:
A front cover made of a resin material capable of transmitting detection radio waves for vehicle driving control;
A cover base formed at the rear of the front cover and integrally fixed to the front cover; And
In order to heat the front cover, it includes a cover heating element provided between the front cover and the cover base and capable of generating heat:
Irregularities are formed on the rear surface of the front cover; The cover heating element is formed in a curved shape to match the irregularities formed on the rear surface of the front cover, and is fixed to the rear surface of the front cover; A sensor cover for vehicle driving control provided with a conductive heating wire capable of generating heat by electric resistance on a front surface of the cover heating element. The method of claim 1,
The cover heating element;
A base film interposed between the front cover and the cover base,
Vehicle driving control sensor cover comprising the heating wire provided on the front surface of the base film. The method of claim 2,
The base film is a polycarbonate (PC) material, characterized in that the vehicle driving control sensor cover. The method of claim 3,
The front cover includes a cover panel made of a PC (polycarbonate) material forming a front surface of the front cover. The method according to any one of claims 1 to 4,
The cover base is formed at the rear of the cover heating element by insert injection molding; The cover heating element is attached to the rear surface of the front cover by an adhesive paint; A sensor cover for vehicle driving control, characterized in that an adhesive paint is applied to the rear surface of the cover heating element to reinforce the integrity with the cover base. The method of claim 1,
The cover base is ASA (Acrylonitrile-Styrene-Acrylate) material, AES (Acrylonitrile-EPDM-Styrene), ABS (Acrylonitrile-Butadiene-Styrene) or PC (Polycarbonate) material, characterized in that the vehicle driving control sensor cover. As a method of manufacturing a vehicle driving control sensor cover that transmits detection radio waves for vehicle driving control:
(A) manufacturing a heating type cover member by fixing a cover heating element for heating the front cover to the rear of a front cover made of a resin material capable of transmitting detection radio waves for vehicle driving control; And
Including the step (b) of integrally disposing a cover base covering the cover heating element at the rear of the cover heating element at the rear of the heating type cover member:
Irregularities are formed on the rear surface of the front cover; A conductive heating wire capable of generating heat by electric resistance is provided on the front surface of the cover heating element; The cover heating element is formed in a curved shape to match the unevenness formed on the rear surface of the front cover, and is fixed to the rear surface of the front cover. The method of claim 7,
The (b) step;
And insert injection step of inserting the heating type cover member into a mold and then injecting resin to form the cover base at the rear of the heating type cover member. The method of claim 8,
And applying a bonding paint to the rear surface of the cover heating element before the insert injection step. The method according to any one of claims 7 to 9,
The (a) step; And attaching the cover heating element to the rear surface of the front cover by using a bonding paint. The method of claim 10,
Prior to the step (a), the cover heating element is placed in a mold having the same shape as the rear bend of the front cover, and heat and pressure are applied to form the cover heating element in a curved shape suitable for the irregularities. Method of manufacturing a sensor cover for vehicle driving control comprising a.

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