阅读说明：本技术 玻璃加热丝结构 (Glass heating wire structure ) 是由 孔珞敬 朴钟旼 李康善 李骐泓 文赞周 张承赫 李菊钒 李恩镐 李赞熙 于 2019-09-29 设计创作，主要内容包括：本发明公开一种车辆的玻璃加热丝结构,具有位于车辆内并被构造成根据用户要求向位于玻璃上的加热丝供应电力的电池,该玻璃加热丝结构包括：玻璃；加热丝,在玻璃上位于一个方向上并串联连接到电池的端子；垂直条,位于玻璃的两端,从而加热丝连接到垂直条；天线线,连接到天线,天线线中的至少一部分包括通过与加热丝相交而形成的交点；以及陶瓷层,形成在加热丝线和天线线之间的相交区域处以位于加热丝线和天线线之间。(The present invention discloses a glass heater wire structure of a vehicle having a battery located in the vehicle and configured to supply power to a heater wire located on a glass according to a user's request, the glass heater wire structure comprising: glass; a heating wire located in one direction on the glass and connected to a terminal of the battery in series; vertical bars at both ends of the glass such that the heating wires are connected to the vertical bars; an antenna wire connected to the antenna, at least a portion of the antenna wire including an intersection formed by intersecting the heating wire; and a ceramic layer formed at an intersection region between the heater wire line and the antenna line to be located between the heater wire line and the antenna line.)

1. A glass heater wire structure of a vehicle having a battery located in the vehicle and configured to supply electric power according to a user's request, the glass heater wire structure comprising:

glass;

a heating wire located in one direction on the glass and connected to terminals of the battery in series;

vertical bars at both ends of the glass such that the heating wires are connected to the vertical bars;

an antenna wire connected to an antenna, at least a portion of the antenna wire including an intersection formed by intersecting the heating wire; and

a ceramic layer formed at an intersection region between the heating wire line and the antenna line and between the heating wire line and the antenna line.

2. The glass heating wire structure according to claim 1,

the ceramic layer is formed of a material having the same characteristics as the enamel portion.

3. The glass heating wire structure according to claim 1,

the ceramic layer extends along at least one of the antenna wire or the heater wire by a predetermined range.

4. The glass heating wire structure according to claim 1,

the battery provides 42V-48V voltage.

5. The glass heating wire structure according to claim 1,

the heating wire includes a plurality of heating wires disposed in a horizontal direction of the glass.

6. The glass heating wire structure according to claim 1,

at least a part of the antenna is disposed in a vertical direction of the glass.

7. The glass heating wire structure according to claim 1,

terminals connected to the positive and negative electrodes of the battery are located at the upper and lower ends of one side portion of the glass, respectively.

8. The glass heating wire structure according to claim 1, further comprising:

an enamel portion formed to surround an edge of the glass.

Technical Field

The present disclosure relates to a glass heater wire structure. More particularly, the present disclosure relates to a window glass heater wire structure in a vehicle.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

In wet and/or damp conditions, the window glass may be vaporized or clouded, and it is therefore difficult for the driver to see objects outside the vehicle. In cold weather conditions, the window glass may frost, and thus the driver's view may become obscured.

It is known to provide a heating circuit on the rear, front or side window glass of a vehicle to overcome the visual field degradation. The heating wires used therein are constructed in any of three types, namely, a first type in which an array of heating wires printed with conductive ink is provided to the inner surface of the glazing, a second type in which a conductive coating is applied to one of the layers forming the glass laminate, and a third type in which an array of heating wires embedded in an interlayer material is provided to bond the glass layers forming the glass laminate together. Accordingly, since various designs of heating wires and heating wire arrays as well as various types of coatings are known, various designs of window glass have been developed.

A window glass provided with the above three types of heating wires needs to be connected to a 12V battery of a vehicle mounted to allow current to pass through a heating circuit or coating. The battery is configured to apply current to each heating wire or conductive coating and make electrical connections through vertical strips, i.e., areas of conductive material, that are patterned with tin-copper tape and connected to an external wiring system.

Further, recently, a heater wire structure including an antenna wire inserted into an inner surface of a rear window glass has been introduced, and such a heater wire structure is configured to interconnect with various AVN (audio, video, and navigation) systems that a vehicle can support.

However, it has been found that conventional heater wire structures including vertical strips connected in parallel may cause the heater wires to overheat in order to apply 42V to 48V batteries.

In addition, it has been found that at the connection location between the antenna wire and the heater wire, the current transmitted from the battery may be applied to the antenna wire. Korean patent application No. 10-2005-0010579 relates to a glass antenna for a vehicle.

The above information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and, therefore, may contain information that does not form the prior art that is already known to those skilled in the art.

Disclosure of Invention

The present disclosure provides a glass heating wire structure which prevents overheating or short-circuiting of an antenna wire due to current being applied thereto if a 42V-48V battery system is introduced.

Further, the present disclosure provides a glass heating wire structure in which an antenna wire and a heating wire are stacked such that a stable amount of power is applied to the heating wire wires connected in series.

According to a form of the present disclosure, there is provided a glass heater wire structure of a vehicle having a battery located in the vehicle and configured to supply power to a heater wire located on a glass according to a user's request, the glass heater wire structure including: glass; a heating wire located in one direction on the glass and connected to a terminal of the battery in series; vertical bars at both ends of the glass such that the heating wires are connected to the vertical bars; an antenna line connected to the antenna, at least a portion of the antenna line including an intersection formed by intersecting or crossing the heating wire; and a ceramic layer formed at an intersection (or region) between the heater wire line and the antenna line and located between the heater wire line and the antenna line.

According to another aspect of the present disclosure, the ceramic layer may be formed of a material having the same characteristics as the enamel portion.

According to another aspect of the present disclosure, the ceramic layer may extend along at least one of the antenna wire or the heater wire by a predetermined range.

According to another aspect of the present disclosure, the battery may provide a voltage of 42V to 48V.

According to another aspect of the present disclosure, the heating wire may include a plurality of heating wires disposed in a horizontal direction of the glass.

According to another aspect of the present disclosure, at least a portion of the antenna may be disposed in a vertical direction of the glass.

According to another aspect of the present disclosure, terminals connected to a positive electrode and a negative electrode of a battery may be located at an upper end and a lower end of one side portion of glass, respectively.

According to another aspect of the present disclosure, the glass heating wire structure may further include: an enamel portion configured to surround an edge of the glass.

Further areas of applicability will become apparent from the description provided herein. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

Drawings

In order that the disclosure may be fully understood, various forms thereof will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram illustrating the construction of a rear window pane including a glass heater wire arrangement according to one form of the present disclosure;

FIG. 2 is a cross-sectional view of a rear window glass coupled to a battery terminal according to one form of the present disclosure;

FIG. 3 is a cross-sectional view of a rear window glass at an intersection between a heater wire and an antenna wire according to one form of the present disclosure;

fig. 4A is a view showing the shape of a ceramic layer between a heater wire and an antenna wire according to a first form of the present disclosure;

fig. 4B is a view showing the shape of a ceramic layer between a heater wire and an antenna wire according to a second form of the present disclosure;

fig. 4C is a view showing the shape of a ceramic layer between a heater wire and an antenna wire according to a third form of the present disclosure; and

fig. 4D is a view showing the shape of a ceramic layer between a heater wire and an antenna wire according to a fourth form of the present disclosure.

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

In the following description, it will be understood that terms such as "… … section", "… … unit", "… … module", "… … layer", and the like refer to a unit that processes at least one function or operation, and may be implemented by hardware or a combination of hardware and software.

In addition, in the following description, it will be understood that terms such as "first", "second", "third", and the like are used only to distinguish one element from another element, and do not limit the order thereof.

Furthermore, in the following description, the terms "heating wire" and "heating wire line" may be used to refer to the same element.

Fig. 1 shows a glass heater wire arrangement 100, such as glass for a vehicle window, according to one form of the present disclosure, on a rear window pane 200.

As exemplarily shown in this figure, the glass forming the rear window glass 200 located at the rear of the vehicle includes an enamel portion 210, and the enamel portion 210 is configured to surround the entire edge of the rear window glass 200. The edge of the rear window glass 200 where the enamel section 210 is located may be configured such that at least a portion of the edge of the rear window glass 200 may be inserted into an outer panel of the vehicle, thereby preventing the vertical bar 160, the terminal 110, the antenna 130, and the like located at the enamel section 210 from being exposed to the outside.

The terminal 110 configured to be coupled to the positive electrode 111 and the negative electrode 112 of the battery is located at the side end of the rear window glass 200, and more preferably, the terminal 110 coupled to the positive electrode 111 of the battery may be located at the top of the side end of the rear window glass 200, and the terminal 110 coupled to the negative electrode 112 of the battery may be located at the bottom of the same side end of the rear window glass 200 as the terminal 110 coupled to the positive electrode 111.

Terminal 110 may be coupled to heater wire 120 adjacent a lower end of terminal 110 by weld 113 and configured such that voltage from the battery is applied to terminal 110.

The heater wire 120 is configured to be disposed in one direction of the rear window glass 200 from one terminal 110. In one form of the present disclosure, the heater wire 120, starting from the left end of the rear window glass 200 where the terminal 110 is connected to the positive pole 111 of the battery, extends to a first vertical strip 161 located at the right end of the rear window glass 200, extends from the first vertical strip 161 to a second vertical strip 162, extends from the second vertical strip 162 to a third vertical strip 163, and then extends from the third vertical strip 163 to the bottom of the left end of the rear window glass 200 where the terminal 110 is connected to the negative pole 112 of the battery.

In the present disclosure, the heater wires 120 extending to the vertical bars 160 are configured to be continuously connected in series to each vertical bar 160, and thus the heater wires 120 are connected in series from the terminal 110 connected to the positive electrode 111 to the terminal connected to the negative electrode 112.

More preferably, the heater wire 120 according to the present disclosure may be configured to be positioned in a horizontal direction of the rear window glass 200, and at least two heater wires 120 (e.g., three or four heater wires) extend to the vertical bar 160. However, the number of the respective heating wires 120 connected in series by the vertical bars 160 is not limited.

The antenna 130 may be located at one side region of the upper end of the enamel portion 210 and configured not to be exposed to the outside by a rear spoiler or the like. More preferably, the antenna 130 may be located at a position facing the rear spoiler and configured to minimize a structure exposed to the outside.

Both the horizontal antenna line 140A and the vertical antenna line 140B connected to the antenna 130 are provided, and more preferably, the horizontal antenna line 140A may be provided substantially parallel to the heater wire line 120, and the vertical antenna line 140B may be provided perpendicular to the heater wire line 120.

An intersection point 150 where the heater wire line 120 and the antenna wire 140 intersect each other is formed such that the heater wire line 120 intersects the antenna wire 140. In particular, each intersection 150 may be located between a heater wire 120 and a vertical antenna 140B, the heater wire 120 being located on the rear window pane 200 in the horizontal direction and the vertical antenna 140B being located on the rear window pane 200 in the vertical direction.

In one form of the present disclosure, a ceramic layer 170 located between the heater wire 120 and the antenna wire 140 is disposed at the intersection 150 between the heater wire 120 and the antenna wire 140, so if a current is applied along the heater wire 120, the current applied to the heater wire 120 is not applied to the antenna wire 140.

The ceramic layer 170 may be configured to be located between the heater wire 120 and the antenna wire 140, and the heater wire 120, the ceramic layer 170 and the antenna wire 140 may be sequentially stacked on the rear window glass 200 at the intersection point 150, or according to another form, the antenna wire 140, the ceramic layer 170 and the heater wire 120 may be sequentially stacked on the rear window glass 200 at the intersection point 150.

In summary, the ceramic layer 170 is located between the heater wire 120 and the antenna wire 140, and the stacking order of the heater wire 120, the ceramic layer 170, and the antenna wire 140 may be changed according to a mass production environment.

Further, according to one form of the present disclosure, the glass heater wire structure 100 on the rear window glass 200 is provided through a printing process, and the antenna wire 140 including the antenna 130 is first printed on the rear window glass 200. Then, a process of printing a black enamel layer at a predicted point where the edge of the rear window glass 200 and the intersection point 150 are located is performed.

Thereafter, a printing screen including the vertical bars 160 and the heater wire 120 is printed on the rear window glass 200 printed with the black enamel layer, thereby manufacturing the rear window glass 200 including the glass heater wire structure 100.

As such, the glass heating wire structure 100 according to one form of the present disclosure may be manufactured through three printing processes performed on the rear window glass 200, and thus three printing screens corresponding to these processes are required.

According to another form of the present disclosure, a process of printing a black enamel layer on an edge of a rear window glass 200 of a vehicle is performed, and then a process of printing a vertical bar 160 and a heater wire 120 on the rear window glass 200 having the black enamel layer printed on the edge thereof is performed.

Thereafter, a process of printing a ceramic layer (black enamel layer) 170 at a predicted point that is an intersection point 150 where the heating wire line 120 and the antenna line 140 intersect each other and a process of printing the antenna line 140 on the ceramic layer 170 are sequentially performed, thereby manufacturing the glass heating wire structure 100.

A glass heater wire structure 100 according to another form of the present disclosure may be manufactured by screen printing and fixing four prints to the upper end of a rear window glass 200.

More preferably, the enamel portion 210 and the ceramic layer 170 of the present disclosure may be printed using the same material, and thus the enamel portion 210 and the ceramic layer 170 may be printed by one screen printing.

Fig. 2 is a cross-sectional view of a rear window pane 200 provided with terminals 110 according to one form of the present disclosure.

According to a form of the present disclosure, the glass heater filament arrangement 100 includes a battery to which a voltage of 42V-48V is applied, and current is applied from the battery to the heater filament 120 through terminal 110.

As exemplarily shown in fig. 2, the terminal 110 connected to the battery is located at one side end of the upper surface of the rear window glass 200, and the terminal 110 is configured to be coupled to the heater wire 120. The terminal 110 and the heating wire 120 are coupled by welding 113.

Terminal 110 is configured to be connected in series to heater wire 120, and thus the current applied to heater wire 120 may be determined by dividing the applied voltage of 42V-48V by the resistance value between heater wires 120.

More preferably, an enamel portion 210 (see fig. 1) may be provided on the rear window glass 200, and the current introduced through the terminal 110 is prevented from directly flowing into the vertical bar 160 or the like located at the side end of the rear window glass 200 without flowing along the heating wire 120 by the enamel portion 210 located between the heating wire 120 and the rear window glass 200.

Fig. 3 is a cross-sectional view of a glass heater wire structure 100 at an intersection point 150 according to one form of the present disclosure.

In one form of the present disclosure, the heater wire 120 is configured to be positioned on the rear window glass 200 in parallel in a prescribed direction, and the antenna 140 includes a horizontal antenna 140A disposed in substantially the same direction as the heater wire 120 and a vertical antenna 140B disposed in a direction perpendicular to the heater wire 120.

The heater wire 120 and the vertical antenna 140B disposed perpendicular to the heater wire 120 intersect each other, thereby forming an intersection point 150. The ceramic layer 170 located between the heater wire 120 and the antenna wire 140 is disposed at the intersection point 150, and thus the current flowing along the heater wire 120 is not applied to the antenna wire 140.

More preferably, the ceramic layer 170 may be configured to have the same characteristics as the enamel 210 surrounding the entire edge of the rear window glass 200, may minimize the portion exposed to the outside, and may include any component capable of performing electrical insulation.

Table 1 below illustrates results of evaluation values representing examples 1 and 2 and comparative examples 1 and 2 of the present disclosure.

Comparative examples 1 and 2 provided a conventional heating wire structure of glass, which includes a heating wire connected in parallel using a 12V battery, and measured resistance values, voltages, currents, electric quantities, and maximum temperatures thereof.

The wires used as the heating wires according to comparative examples 1 and 2 were manufactured to have a diameter of 3.0mm²The size of (c).

Examples 1 and 2 provide a glass heating wire structure 100 according to the present disclosure, the glass heating wire structure 100 includes a heating wire line 120, an antenna line 140, and a ceramic layer 170 disposed at an intersection 150 between the heating wire line 120 and the antenna line 140, which are connected in series using a 42V to 48V battery, and a resistance value, a voltage, a current, an electric quantity, and a maximum temperature of the glass heating wire structure 100 were measured.

Further, wires used as the heater wire 120 of the glass heater wire structures 100 according to examples 1 and 2 of the present disclosure were manufactured to have 1.0mm²The size of (c).

In comparative examples 1 and 2 and examples 1 and 2, both the horizontal antenna line 140A and the vertical antenna line 140B are provided.

Table 1 below illustrates evaluation data obtained from two types of vehicles.

[ Table 1]

As described above, the sectional area according to comparative example 1 was measured to be 3.0mm²And the resistance, voltage, current, quantity of electricity and maximum temperature of 15 heating wires connected in parallel were measured, and the sectional area according to comparative example 2 was 3.0mm²And resistance, voltage, current, electric quantity and maximum temperature of 13 heating wires connected in parallel。

In contrast, the sectional area to which the voltage of the 42V-48V battery according to example 1 was applied was measured to be 1.0mm²And the resistance, voltage, current, quantity of electricity and maximum temperature of the 16 heater wires 120 connected in series were measured, and the sectional area of the voltage applied to the 42V to 48V cell according to example 2 was measured to be 1.0mm²And the resistance, voltage, current, quantity of electricity and maximum temperature of the 13 heater wires 120 connected in series, wherein example 1 was applied to the same vehicle as comparative example 1, and example 2 was applied to the same vehicle as comparative example 2.

Further, the glass heating wire structure 100 according to examples 1 and 2 includes the ceramic layer 170 between the antenna wire 140 and the heating wire 120, and thus is configured such that current is not applied to the antenna wire 140.

As described in the above measurement results, the actual measured resistance values of the heating wire lines 120 connected in series in the glass heating wire structures 100 according to examples 1 and 2 are 15 times or more the actual measured resistance values of the heating wire lines connected in parallel in the glass heating wire structures according to comparative examples 1 and 2. Further, a voltage of 42V to 48V from a battery was applied to the heater wire 120 according to examples 1 and 2.

The amount of electricity used in the heater wire 120 according to examples 1 and 2 is actually similar to that used in the heater wire according to comparative examples 1 and 2, which is caused by the increase in the resistance value of the heater wire 120 of examples 1 and 2.

Further, the maximum temperature provided by the heating wire 120 according to examples 1 and 2 is practically similar to that provided by the heating wire according to comparative examples 1 and 2, which means that the performance of the heating wire 120 having a small diameter according to examples 1 and 2 of the present disclosure is equivalent to that of the conventional heating wire.

Therefore, it was determined that when the glass heating wire structures 100 according to examples 1 and 2 had the same performance as the conventional heating wire structures of glass, the sectional area of the heating wire 120 of the glass heating wire structures 100 according to examples 1 and 2 can be reduced to 1/3 of the sectional area of the heating wire of the conventional heating wire structures of glass according to comparative examples 1 and 2.

In summary, it can be understood that the glass heating wire structures 100 according to examples 1 and 2 reduce overheating of the antenna 130 and prevent short-circuiting of the antenna wire 140 while having the same performance as the conventional heating wire structures of glasses according to comparative examples 1 and 2.

Fig. 4A to 4D illustrate various forms of the present disclosure, that is, a ceramic layer 170 formed in various shapes formed of a black enamel layer according to first to fourth forms of the present disclosure.

Fig. 4A shows a ceramic layer 170 according to the first form, the ceramic layer 170 extending along both the antenna wire 140 and the heater wire 120 at the intersection 150 between the heater wire 120 and the antenna wire 140, and such a ceramic layer 170 having an optimum structure for preventing energization between the heater wire 120 and the antenna wire 140. However, the extent to which the ceramic layer 170 according to this form is exposed to the outside of the rear window glass 200 is slightly larger than the extent to which the ceramic layer according to other forms is exposed to the outside of the rear window glass 200.

Fig. 4B shows a ceramic layer 170 according to a second form, the ceramic layer 170 being located only at the intersection point 150 between the heater wire 120 and the antenna wire 140, i.e. only at a position where the antenna wire 140 and the heater wire 120 are directly opposite each other.

In the second form of the present disclosure, the exposed surface of the ceramic layer 170 exposed to the outside of the rear window glass 200 may be minimized, but high precision may be required in the manufacturing process in order to prevent electrical conduction between the antenna wire 140 and the heater wire 120.

Fig. 4C shows a ceramic layer 170 according to a third form extending along the antenna wire 140, and fig. 4D shows a ceramic layer 170 according to a fourth form extending along the heater wire 120.

As exemplarily shown in fig. 4A to 4D, the ceramic layer 170 according to the present disclosure may perform a function of preventing energization between the antenna wire 140 and the heater wire 120 while minimizing an exposed surface of the ceramic layer 170, and may provide various forms other than the above-described forms.

As described above, the glass heating wire structure prevents the antenna wire overlapping with the heating wire for series connection in the 42V-48V battery system from being overheated and short-circuited, thereby increasing the durability of the heating wire and the antenna on the window glass of the vehicle.

In addition, the glass heating wire structure includes a ceramic layer, which can reduce the diameter and length of the heating wire line at a high voltage, thereby reducing manufacturing costs.

While the disclosure has been described in connection with what is presently considered to be practical exemplary forms, it is to be understood that the disclosure is not limited to the disclosed forms, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the disclosure.