JP6780294B2 - Manufacturing method of heating electrode device, energizing heating panel, vehicle, and heating electrode device - Google Patents

Description

The present invention relates to a heating electrode device provided with a heating conductor that generates heat by Joule heat when energized, and a method for manufacturing an energizing heating panel, a vehicle, and a heating electrode device using the heating electrode device.

Conventionally, as described in Patent Document 1, the glass windows of vehicles such as automobiles, railways, aircraft, and ships, and the glass windows of buildings are heated by energizing to freeze or fog the glass windows. There is a technology to solve it. Such a glass window is configured by providing a heating electrode device between two glass plates. The heating electrode device has a plurality of lines of heat-generating conductors, and is configured so that the heat-generating conductors can be energized to generate heat to heat the glass window.

Jikkai Sho 64-28309 JP-A-2015-20723

Since such a heat-generating conductor forms irregularities, when arranging it between two pieces of glass, it is necessary to fill the space with an adhesive to bond it with another layer. However, when the gap is filled with the adhesive and further adhered to another layer in this way, there is a problem that the overall haze of the glass window is lowered.

Therefore, in view of the above problems, it is an object of the present invention to provide a heating electrode device capable of suppressing a decrease in haze and more clearly recognizing the opposite side. Further provided, a method for manufacturing an energized heating panel, a vehicle, and a heating electrode device including the heating electrode device.

As a result of diligent studies, the inventors obtained the following findings. It was found that when the space between multiple heat-generating conductors is filled with an adhesive and then bonded to another layer, for example, air bubbles are generated in the adhesive layer, which causes a decrease in haze. Completed the invention. The present invention will be described below. Reference numerals in the drawings are added here for ease of understanding, but the present invention is not limited thereto.

One aspect of the present invention is a heating electrode device (20) that energizes and heats a panel, and is arranged between a transparent base material layer (24) and a surface of the base material layer at a predetermined interval. A plurality of bus bar electrodes (21a, 21b) and a plurality of heat generating conductors which are wires of a conductor arranged on the surface of the base material layer and electrically connected to the bus bar electrodes across the plurality of bus bar electrodes. (22a) is laminated on the base material layer on the side where the bus bar electrode and the heat generating conductor are provided, arranged so as to fill the space between the plurality of heat generating conductors, and the surface opposite to the side arranged on the base material layer is The bus bar electrode is a heating electrode device including a flattening layer (25) which is flat, and an exposed portion (21c) protruding from the flattening layer is formed.

Further, a transparent first panel (11), a transparent second panel (15) arranged at a distance from the first panel, and a first panel and a second panel. The heating electrode device (20) arranged at intervals, an adhesive layer (12) for adhering the first panel and the base material layer (24), and the second panel and the flattening layer (25) are provided. Provided is an energizing heating panel (10) comprising an adhesive layer (14) to be adhered.

Further, it is possible to provide a vehicle provided with such an energizing heating panel.

As a method for manufacturing the above-mentioned heating electrode device, the flattening layer (25) is an exposed portion (21c) when the composition (25') constituting the flattening layer before curing is supplied from the nozzle (60). ) Can include a step of repeating the supply and stop of the composition in order not to supply the composition.

According to the present invention, it is possible to suppress the generation of air bubbles in the adhesive, reduce the haze, and improve the transparency.

FIG. 1A is a plan view illustrating an energization heating panel 10 according to one embodiment, FIG. 1B is an enlarged view of a heating conductor 22aL which is an example of a heating conductor 22a, and FIG. 1C is a heat generation. It is an enlarged view of the heat generating conductor 22aM which is another example of a conductor 22a. It is sectional drawing explaining the layer structure of the energization heating panel 10. It is another cross-sectional view explaining the layer structure of the energization heating panel 10. It is a perspective view explaining the heating electrode device 20. It is a figure explaining the form of the cross section of the heat generating conductor 22a. 6 (a) to 6 (d) are views for explaining the formation of the heat generating conductor 22a in the method for manufacturing the energization heating panel 10. It is a perspective view explaining the process of forming a flattening layer 25 in the manufacturing method of a current-carrying heating panel 10. It is a side view explaining the process of forming a flattening layer 25 in the manufacturing method of a current-carrying heating panel 10. It is a figure explaining the energization heating panel 110.

The above-mentioned actions and gains of the present invention will be clarified from the forms described below. Hereinafter, the present invention will be described based on the embodiments shown in the drawings. However, the present invention is not limited to these forms. In addition, each member appearing in the drawing may be exaggerated or deformed in size or shape from the viewpoint of easy understanding.

FIG. 1A is a diagram illustrating one form, and is a conceptual view of the energization heating panel 10 in a plan view. Further, FIG. 1 (b) is an enlarged view of the portion shown by Ia in FIG. 1 (a), and is an enlarged view of the heat-generating conductor 22aL, which is an example of the heat-generating conductor 22a. FIG. 1 (c) is an enlarged view of the portion shown by Ia in FIG. 1 (a), and shows an enlarged view of the heat-generating conductor 22aM, which is another example of the heat-generating conductor 22a.
FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG. 1 and is a diagram for explaining the layer structure of the energization heating panel 10 in the thickness direction. FIG. 2 is a cross-sectional view taken along the direction in which the heat generating conductor 22a extends.
FIG. 3 is a cross-sectional view taken along the line III-III shown in FIG. 1 and is a diagram for explaining the layer structure of the energization heating panel 10 in the thickness direction. FIG. 3 is a cross-sectional view taken along a direction orthogonal to the extending direction of the heat generating conductor 22a.
Such an energizing heating panel 10 is provided in an automobile as, for example, a windshield of the automobile. In addition, it can be used as a window where it has a so-called glass window, and examples thereof include windows of vehicles such as automobiles, railways, aircraft, and ships, and windows of buildings.

As can be seen from FIGS. 1 (a), 2 and 3, the energization heating panel 10 has a plate shape as a whole, and a plurality of layers are laminated in the thickness direction (Z-axis direction shown in FIGS. 1 and 2). It will be done. More specifically, the energization heating panel 10 of this embodiment has a first panel 11, an adhesive layer 12, a heating electrode device 20, an adhesive layer 14, and a second panel 15 as shown in the cross-sectional views of FIGS. 2 and 3. It is configured to have. Each will be described below.

The first panel 11 and the second panel 15 are translucent, that is, transparent plate-shaped members, and are arranged substantially in parallel with a space between the plate surfaces arranged so as to face each other. There is. It is a so-called double panel structure. Here, the plate surface is, in terms of FIGS. 2 and 3, two opposite planes parallel to the XY plane among the surfaces of the first panel 11 and the second panel 15. A part of the heating electrode device 20 is arranged between the first panel 11 and the second panel 15, and is integrated by the adhesive layers 12 and 14.
The first panel 11 and the second panel 15 can be made of flat glass. For this, the same flat glass as that normally used for windows in equipment to which the energization heating panel 10 is applied (for example, a vehicle or a building) can be used. Examples thereof include ordinary plate glass made of soda lime glass (blue plate glass), borosilicate glass (white plate glass), quartz glass, soda glass, potash glass and the like, float plate glass, tempered plate glass, partial plate glass and the like. Further, if necessary, it may have a curved portion in a three-dimensional curved surface.
However, it does not necessarily have to be a glass plate, and may be a resin plate made of a resin such as an acrylic resin or a polycarbonate resin. However, flat glass is preferable from the viewpoint of weather resistance, heat resistance, transparency and the like.
The thickness of the first panel 11 and the second panel 15 is not particularly limited, but is generally 1.5 mm or more and 5 mm or less.

The adhesive layer 12 is a layer made of an adhesive laminated on the surface of the first panel 11 on the side of the second panel 15, and adheres the heating electrode device 20 and the first panel 11. The adhesive is not particularly limited, but a polyvinyl butyral resin can be used from the viewpoints of adhesiveness, weather resistance, heat resistance and the like.
The thickness of the adhesive layer 12 is not particularly limited, but is generally 0.2 mm or more and 1.0 mm or less.

The heating electrode device 20 is configured to generate heat when energized to heat the energized heating panel 10. FIG. 4 is a perspective view showing a part of the bus bar electrode 21a and the heat generating conductor 22a among the configurations included in the heating electrode device 20.
As can be seen from FIGS. 1 to 4, in this embodiment, the heating electrode device 20 has a bus bar electrode 21, a heat generating conductor portion 22, a power supply connection wiring 23, a base material layer 24, and a flattening layer 25. For convenience, the base material layer 24 will be described first here.

The base material layer 24 is a layer in which a bus bar electrode and a heat generating conductor portion 22 of the heating electrode device 20 are arranged on one surface thereof and function as a base material of the bus bar electrode 21 and the heat generating conductor portion 22. is there. The base material layer 24 is a transparent plate-shaped member and is made of resin. The resin forming the base material layer 24 may be any resin as long as it transmits a wavelength in the visible light wavelength band (380 nm to 780 nm), but a thermoplastic resin can be preferably used. Examples of the thermoplastic resin include polyester resins such as polyethylene terephthalate, polyethylene terephthalate and amorphous polyethylene terephthalate (A-PET), polyolefin resins such as polyethylene, polypropylene, polymethylpentene and cyclic polyolefin, and acrylic resins such as polymethylmethacrylate. , Cellulosic resin such as triacetyl cellulose (cellulose triacetate), polycarbonate resin, polystyrene, styrene resin such as acrylonitrile-styrene copolymer, polyvinyl chloride, and the like. In particular, acrylic resin and polyvinyl chloride are preferable because they are excellent in etching resistance, weather resistance, and light resistance. The thickness of the base material layer 24 is generally 20 μm or more and 300 μm or less. The resin layer constituting the base material layer 24 is uniaxially or biaxially stretched as needed.

In this embodiment, the bus bar electrode 22 has a first bus bar electrode 21a and a second bus bar electrode 21b.
The first bus bar electrode 21a is arranged on one surface of the base material layer 24. The first bus bar electrode 21a has a strip shape extending in one direction (X-axis direction in FIG. 1).
On the other hand, the second bus bar electrode 21b is arranged on the other surface of the base material layer 24 opposite to the first bus bar electrode 21a. The second bus bar electrode 21b has a strip shape extending in one direction (X-axis direction in FIG. 1).

Known forms can be applied to the first bus bar electrode 21a and the second bus bar electrode 21b, and the width of the strip-shaped electrode is generally 3 mm or more and 15 mm or less.

In this embodiment, the heat generating conductor portion 22 is configured by arranging a plurality of heat generating conductors 22a.
The heat generating conductor 22a intersects the first busbar electrode 21a and the second busbar electrode 21b so as to pass the first busbar electrode 21a and the second busbar electrode 21c of the base material layer 24 (Y-axis in FIG. 1). It is arranged extending in the direction). The first bus bar electrode 21a and the second bus bar electrode 21b are electrically connected by a heat generating conductor 22a. The heat generating conductor 22a generates heat when energized.
A plurality of such heat generating conductors 22a are arranged in the direction in which the first bus bar electrode 21a and the second bus bar electrode 21b extend (in the X-axis direction in FIG. 1).

The cross section of the heat generating conductor 22a preferably has the following shape. FIG. 5 shows an enlarged view of the portion indicated by V in FIG.
Heating conductor 22a is in the thickness direction of the heating electrode device 20 (the direction in which the layers are stacked), the surface area per length 0.01m viewed from above the surface facing the base layer 24 S _B, the opposite side when the surface was the surface area S _T per length 0.01m viewed in plan,
^{_{0μm 2 <S B -S T ≦}} 30000μm 2
Is preferably established. Here, the "length" means the distance between one end and the other end of the extending first heat-generating conductor 22a and the second heat-generating conductor 22b. More preferably
^{_{0μm 2 <S B -S T ≦}} 15000μm 2
Is.
According to this, when the first heat-generating conductor 22a and the second heat-generating conductor 22b are manufactured with a width that cannot be visually recognized, the cross-sectional area can be large and a high output can be obtained. It would be ideal if a rectangle could be produced, but it is difficult to produce it by etching from the viewpoint of the so-called side edge properties.

It is more preferable to configure the other parts as follows while satisfying the above range. Reference numerals are given to FIG. 5 for explanation.
The distance B between the adjacent heating conductors 22a shown by FIG. 5B is preferably 0.5 mm or more and 5.00 mm or less. It is more preferably 1.0 mm or more, still more preferably 1.25 mm or more.
Further, in the cross section, when the width of W _B of the side facing the base layer _24, and the length in the width sides of the opposite surface was W _{T,
W B>} W T,
3μm ≦ _{W B} ≦ 15μm, and 1μm ≦ W _T ≦ 12μm
It is preferable that
In addition, this cross section is a surface cut so as to be the smallest cross section at the site. Further, when unevenness is formed on the surface of the heat generating conductor 22a, the cross section of the minimum area including the unevenness shall be considered.
Further, the thickness H of the heat generating conductor 22a is preferably 5 μm or more and 30 μm or less.

Further, it is preferable that the heat-generating conductor 22a has a pitch P of 0.07 mm or more and 0.150 mm or less with the adjacent heat-generating conductors 22a. If the pitch P (mm) is smaller than 0.07 mm, the light transmittance may decrease and the pitch may become too dark. On the other hand, if the pitch P is larger than 0.150 mm, it is easy to see and the output may be insufficient.

As the conductor material constituting the heat generating conductor 22a, for example, a metal such as tungsten, molybdenum, nickel, chromium, copper, silver, platinum, aluminum, or an alloy containing these metals such as nickel-chromium alloy, bronze, brass, etc. is patterned by etching. A band-shaped member formed and formed can be mentioned.

In the present embodiment, the heat-generating conductor 22a is composed of stripes and is formed in a parallel straight line group as shown by reference numeral 22aL in the enlarged drawing of the heat-generating conductor 22 shown in FIG. 1 (b). In addition, in the enlarged view of the heat generating conductor 22a shown in FIG. 1C, it may be formed in a band shape and a wavy line shape as shown by reference numeral 22aM.

Next, the flattening layer 25 will be described. The flattening layer 25 is a layer for absorbing irregularities formed by the plurality of heat generating conductors 22a and forming a flattened surface. That is, as can be seen from FIGS. 2 and 3, one of the flattening layers 25 in the thickness direction enters between the adjacent heat generating conductors 22a and fills the gap. The flattening layer 25 is formed thicker than the heat generating conductor 22a and the bus bar electrode 21, so that a flat surface is formed on the other side of the flattening layer 25 in the thickness direction. As a result, by providing the adhesive layer 14 on the flat surface, bubbles are less likely to be generated in the adhesive, haze is prevented from being lowered, and a highly transparent energization heating panel can be formed.

Further, as can be clearly seen from FIG. 2, the flattening layer 25 has at least at least the first bus bar electrode 21a and the second bus bar electrode 21b in the direction in which the two bus bar electrodes 21a and 21b are arranged (Y direction in FIG. 2). A part of the flattening layer 25 is formed so as to protrude in the Y direction. Therefore, of the first bus bar electrode 21a and the second bus bar electrode 21b, at least a part of the surface along the panel surface of the energization heating panel has an exposed portion 21c exposed without being covered by the flattening layer 21. .. As a result, a portion for connecting the power supply connection wiring 23 can be formed in the exposed portion.
Such forming the exposed portion 21c, for example, shown in FIG. 2, the distance L ₁ of the end faces is not Mukaiawa in Y direction between the first bus bar electrode 21a and the second bus bar electrode 21b is, the planarization layer 25 It can be configured to be larger than the size L ₂ in the Y direction.

The material constituting the flattening layer 25 is not particularly limited as long as it is transparent, but it is preferable that the material can be coated before curing and then cured as described later. From this point of view, for example, polyfunctional prepolymers such as urethane (meth) acrylate, polyester (meth) acrylate, epoxy (meth) acrylate, 1,6-hexanediol di (meth) acrylate, trimeter propantriacrylate, dipenta. One or more prepolymers selected from polyfunctional monomers such as erythritol hexa (meth) acrylate, one or more monomers, or one or more prepolymers and one or more monomers Ionizing radiation curable resin consisting of the above composition, acrylic resin such as polymethyl (meth) acrylate and polybutyl (meth) acrylate, thermoplastic resin such as polyethylene terephthalate (PET) and vinyl chloride-vinyl acetate copolymer, two-component curing A thermoplastic resin such as a mold urethane resin or an epoxy resin can be used. Here, "(meth) acrylate" means acrylate or methacrylate. Further, the ionizing radiation is visible light, ultraviolet rays, electromagnetic waves such as X-rays, charged particle rays such as electron beams and α rays, and usually ultraviolet rays or electron beams are used.

As can be seen from FIGS. 1A and 2A, the power supply connection wiring 23 is a wiring for connecting the power supply 40 between the two first bus bar electrodes. The power supply 40 is not particularly limited as long as it can supply electric power necessary for melting or evaporating water droplets (cloudy), freezing (frost), etc., and is known to have an appropriate voltage, current, or frequency. DC or AC power supply may be used. However, when the energizing heating panel 10 is applied to an automobile, a battery such as a lead storage battery or a lithium ion storage battery already installed in the automobile can be used as a DC power source as the power source 40. Of course, a dedicated power source (battery, generator, etc.) may be used separately. Further, in the case of a railroad vehicle powered by an electric motor, the DC or AC power supplied from the overhead wire can be converted into an appropriate voltage and current for use. A known configuration may be applied to such a power supply connection wiring 23.
Here, it is preferable that the power supply connection wiring 23 is connected to the first bus bar electrode 21a and the second bus bar electrode 21b including at least the exposed portion 21c, thereby making the electrical connection more reliable. Can be done.

The adhesive layer 14 is a layer for adhering the heating electrode device 20 and the second panel 15. More specifically, in the flattening layer 25 of the heating electrode device 20, the flattened surface is arranged between the flattened surface and one surface of the second panel 15 to bond the two. The material of the adhesive layer 14 can have the same structure as that of the adhesive layer 12.
As described above, in the present invention, the adhesive layer 14 is not configured to directly bond the uneven heat generating conductor portion 22, and the flattened surface can be bonded, so that bubbles and the like are generated. It is possible to suppress the haze from becoming large.

With each of the above configurations, the energization heating panel 10 is formed as follows. As can be seen from FIGS. 2 and 3, the adhesive layer 12 is laminated on one surface of the first panel 11, and the base material layer 24 side of the heating electrode device 20 is laminated via the adhesive layer 12. .. Since both the surface of the first panel 11 and the surface of the base material layer 24 are flat, the generation of air bubbles in the adhesive layer 12 is suppressed.
Then, the flattening layer 25 and the second panel 15 of the heating electrode device 20 are adhered to each other by the adhesive layer 14. As described above, since the flat surface of the flattening layer 25 and the surface of the second panel 15 are adhered to each other, the generation of air bubbles is suppressed even in this adhesive layer 14.

At this time, as can be seen from FIGS. 1 and 2, at least a part of the base material layer 24, the first bus bar electrode 21a, and the second bus bar electrode 21b in the heating electrode device 20 is another member in the Y direction. It is arranged so as to protrude from the end face of the. As a result, the exposed portion 21c is formed as described above, and the electrical connection can be made easy and reliable.

Such a heating electrode device 20 and an energization heating panel 10 including the heating electrode device 20 can be manufactured as follows, for example. 6 (a) to 6 (d), 7 and 8 are diagrams for explanation.

First, as shown in FIG. 6A, a laminate is produced in which a metal foil 22a'is laminated on one surface of a base material layer 24 made of a resin film via an adhesive layer.
Next, as shown in FIG. 6B, the photosensitive resist layer 80 is coated and formed on the metal foil 22a'of the laminated body.

Next, a plan view of a heating electrode device 20 including a desired pattern, for example, a heating conductor 22a, a first busbar electrode 21a, and a second busbar electrode 21b having a parallel arrangement pattern of strip-shaped straight lines as shown in FIG. 1B. A photo mask having a shading pattern based on the pattern is prepared. Then, the photomask is placed in close contact with the photosensitive resist layer 80. Then, the photomask is exposed to ultraviolet rays through the photomask, the photomask is removed, and then the unexposed photosensitive resist layer is dissolved and removed by a known development process to match the desired pattern 80a as shown in FIG. 6C. A resist pattern layer 80'of shape is formed on the metal foil 22a'.
Here, in FIG. 6C, the position and size of the heat generating conductor 22a to be formed are represented by broken lines and light ink with reference to the reference. As can be seen from FIG. 6C, in this example, the distance from the edge of the resist pattern 80a formed on the resist pattern layer 80 to the edge of the heat generating conductor 22 to be formed is C. There is. And this C is preferably 5 μm or more and 30 μm or less. Thereby, the heat generating conductor 22a of the above-described form can be obtained by etching.

Next, the laminate is etched (corroded) with a corrosive liquid from above the resist pattern layer 80', and the resist pattern layer 80'metal foil 22a' is corroded and removed as shown in FIG. 6D. Then, the resist pattern layer is dissolved and removed (defilmed). Thus, the heat generating conductors 22a, the first bus bar electrode 21a, and the second bus bar electrode 21b of the predetermined pattern of the plan view shape of FIG. 1A and the cross-sectional shapes of FIGS. 2 and 3 are formed on the front and back surfaces of the base material layer 24, respectively. Manufacture the formed laminated member.

Next, the flattening layer 25 is laminated. In this embodiment, the flattening layer 25 is formed as follows. 7 and 8 are diagrams for explanation. FIG. 7 is a perspective view, and FIG. 8 is a side view.
As shown in the figure, the combination of the heat generating conductor 22a, the first busbar electrode 21a, and the second busbar electrode 21b is formed by the method described above so as to be parallel to one surface of the uncut strip-shaped base material layer 24. A plurality of sets are formed in the longitudinal direction of 24. This is conveyed in the direction orthogonal to the extending direction of the first bus bar electrode 21a and the second bus bar electrode 21b (the direction indicated by the arrow VII in FIGS. 7 and 8 and also the longitudinal direction of the base material layer 24). To do.

The liquid composition 25 before curing, which becomes the flattening layer 25, with respect to the heat generating conductor 22a, the first busbar electrode 21a, and the second busbar electrode 21b formed on the base material layer 24 conveyed in this manner. 'Is supplied from the nozzle 60 in the form of a sheet from above. At this time, so-called intermittent coating is performed by repeating the supply and stop of the composition 25'from the nozzle 60 so as to form the exposed portion 21c. As a result, the exposed portion 21c can be appropriately formed, and unnecessary supply of the composition can be prevented.

After that, the composition 25'is cured (solidified) by an appropriate method, and the base material layer 24 is in a position including a set of heat generating conductors 22a (including a predetermined number of rows), a first busbar electrode 21a, and a second busbar electrode 21b. The heating electrode device 20 can be manufactured by cutting into.

Next, the first panel 11, the adhesive layer 12, the heating electrode placement 20, the adhesive layer 14, and the second panel 15 are laminated in this order, and these plurality of layers are adhered and laminated to be integrated.
Through the above steps, the energization heating panel 10 shown in the plan view of FIG. 1A and the cross-sectional views of FIGS. 2 and 3 is manufactured.

According to the method for manufacturing the energization heating panel 10 described above, a heat-generating conductor having a cross-sectional shape close to a rectangle can be obtained by etching, as compared with a heat-generating conductor having a trapezoidal cross section in which the difference between the upper base and the lower bottom is large. It is possible to increase the thickness and increase the cross-sectional area while keeping the size in the width direction small.

The energization heating panel 10 is used and operates as follows, for example. Here, as an example, a case where the energization heating panel 10 is applied to the front panel of an automobile will be described.
That is, in the embodiment of FIG. 1, the energizing heating panel 10 is arranged at the position of the front panel of the automobile. At this time, the power supply 40 is connected to the power supply connection wiring 23 via the switch 50, and the first The heat generating conductor 22a can be heated via the bus bar electrode 21a and the second bus bar electrode 21b. In this embodiment, the existing battery in the automobile is used as the power source 40. When the switch 50 is closed, current is supplied from the power supply 40. Since the first panel 11 and the second panel 12 of the heating conductor 22a are heated by the heat generated by Joule heat, the temperature of the energizing heating panel 10 functioning as the front panel rises, and freezing and fogging are eliminated.

Further, in the present invention, since the flattening layer 25 is provided in the heating electrode device 20 and the flattened surface is adhered to the panel, it is possible to prevent the haze from becoming large due to the generation of air bubbles or the like.

FIG. 9 is a diagram illustrating another form of the energization heating panel 110. FIG. 9 is a diagram corresponding to FIG. 1 (a).
In the energization heating panel 110 of the present embodiment, the heating electrode device 120 projects from the flattening layer 25 by projecting a part of the first bus bar electrode 121a and the second bus bar electrode 121b to form an exposed portion 121c. This is an example. Since other parts can be considered in the same manner as the above-mentioned energization heating panel 10, the same reference numerals are given and the description thereof will be omitted.
The same effect can be achieved by providing the flattening layer 25 in the same way with the heating electrode device 120 and the energization heating panel 110 provided with the heating electrode device 120.

10, 110 Energizing heating panel 11 First panel 12 Adhesive layer 14 Adhesive layer 15 Second panel 20, 120 Heating electrode device 21a, 121a First busbar electrode 21b, 121b Second busbar electrode 21c Exposed part 22 Heat-generating conductor part 22a Heat-generating conductor 23 Power supply connection wiring 24 Base material layer 25 Flattening layer 40 Power supply

Claims (4)

A heating electrode device that energizes and heats the panel.
A transparent substrate layer and
A plurality of bus bar electrodes arranged on the surface of the base material layer at predetermined intervals,
A plurality of heat-generating conductors arranged on the surface of the base material layer, passing between the plurality of the bus bar electrodes, and being electrically connected to the bus bar electrodes.
Wherein the bus bar electrode and the heating conductor is laminated on the base layer side provided, said plurality of heating conductor between are arranged so as to fill the Rutotomoni, the bus bar electrode and is formed thicker than the heating conductor A flattening layer that covers at least a part of the bus bar electrode and the heat generating conductor and has a flat surface on the side opposite to the side arranged on the base material layer is provided.
The bus bar electrode is a heating electrode device in which an exposed portion protruding from the flattening layer is formed. With a transparent first panel
A transparent second panel that is spaced apart from the first panel,
The heating electrode device according to claim 1, which is arranged at the distance between the first panel and the second panel.
An adhesive layer that adheres the first panel and the base material layer,
An adhesive layer that adheres the second panel and the flattening layer,
Equipped with an energizing heating panel. A vehicle including the energizing heating panel according to claim 2. The method for manufacturing the heating electrode device according to claim 1.
When the composition constituting the flattening layer before curing is supplied from the nozzle, the flattening layer is subjected to a step of repeating supply and stop of the composition so as not to supply the composition to the exposed portion. A method of manufacturing a heating electrode device, including.

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