Electrode structure of electric heating organic glass

Abstract

The invention relates to the technical field of organic glass, and discloses an electrode structure of electric heating organic glass. Comprising organic glass, the upper surface of the organic glass is coated with a prime coating, the prime coating is provided with an anchoring bus, the prime coating is fixedly provided with a conductive film layer, the conductive film layer is coated with a protective coating, a second bus is arranged at the position, corresponding to the anchoring bus, of the protective coating, and the second bus is fixedly arranged on the conductive film layer. A conductive binder is arranged above the second bus, a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged right above the conductive binder; the method has the advantages that the influence of thermal deformation of the organic glass substrate under the temperature change on the electrode structure is effectively solved, the bus convergence capability of the bus is improved, and the compatibility of the electric heating organic glass to different voltage environments is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plexiglass, and particularly to an electrode structure for electrically heated plexiglass. Background Art

[0002] The technology of electrically heated coating on inorganic glass is relatively common. Since inorganic glass has a lower thermal expansion coefficient and higher heat resistance than plexiglass, the electrode structure design of the electrically heated coating on inorganic glass is simpler and more mature. Usually, only conductive busbars need to be directly printed on the coating layer, and conductive copper current-carrying sheets are bonded to the busbars to meet the usage requirements of the electrodes.

[0003] Due to the low heat resistance and high thermal expansion coefficient of plexiglass, low-temperature or normal-temperature coating is usually used for coating the electrically heated film on plexiglass. Coating at low temperature or normal temperature requires the production of multiple coatings to be used in conjunction with the coating film layer to increase the reliability of the electrically heated coating film layer. Usually, a primer layer is made on the plexiglass substrate to enhance the adhesion strength between the coating layer and the substrate. An electrically heated conductive film layer is coated on the primer layer. The conductive film layer with a certain resistance can play a functional role of energizing and heating. A protective coating is made on the conductive film layer. The protective coating can effectively protect the electrically heated film layer from damage caused by external factors during subsequent processing or use. Therefore, under the complex thin film (coating layer and coating film layer) structure, when designing the electrode structure, it is necessary to consider the compatibility and reliability among relevant components such as the plexiglass substrate, multiple coating layers, and coating film layer at the same time. There is a lack of an electrode structure for electrically heated plexiglass with excellent compatibility and stability in the prior art.

[0004] Therefore, an electrode structure for electrically heated plexiglass is provided to solve the above problems. Summary of the Invention

[0005] The main purpose of the present invention is to solve the problem that there is a lack of an electrode structure for electrically heated plexiglass with excellent compatibility and stability in the prior art.

[0006] The present invention provides an electrode structure for electrically heated plexiglass, and the electrode structure for electrically heated plexiglass includes:

[0007] Plexiglass, a primer coating is applied on the upper surface of the plexiglass, an anchor busbar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is applied on the conductive film layer, a second busbar is arranged at a position corresponding to the anchor busbar on the protective coating, a conductive adhesive is arranged above the second busbar, and a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

[0008] Further, the primer coating layer includes: epoxy resin-based, acrylic-based, and polyurethane-based transparent organic coatings.

[0009] Further, the conductive film layer is a metal inorganic conductive coating layer or a metal oxide inorganic conductive coating layer.

[0010] Further, the anchoring bus bar is conductive adhesive.

[0011] Further, the second bus bar is silver paste.

[0012] Further, the current-carrying electrode is a copper braid or a copper sheet.

[0013] Further, the plexiglass is polycarbonate glass or acrylic glass.

[0014] Further, the conductive adhesive is conductive adhesive.

[0015] The present invention enables the anchoring bus bar to be in direct contact with the plexiglass substrate, which can effectively solve the influence of the thermal deformation of the plexiglass substrate under temperature changes on the electrode structure; the anchoring bus bar and the bus bar sandwich the conductive film layer in the middle, which can disperse the bonding stress of the bus bar on the conductive film layer and effectively reduce the contact resistance between the bus bar and the conductive film, improving the current collection ability of the bus bar; the current-carrying electrode is bonded to the bus bar, which can improve the current-carrying ability of the bus bar, reduce the failure risk of the electric heating power-on circuit, and improve the compatibility of the electrically heated plexiglass with different voltage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the present invention.

[0017] Among them, the corresponding reference numerals should be: 1 - plexiglass; 2 - primer coating; 3 - conductive film layer; 4 - protective coating; 5 - anchoring bus bar; 6 - second bus bar; 7 - conductive adhesive; 8 - current-carrying electrode. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] An embodiment of the present invention provides an electrode structure for electrically heated plexiglass, including: plexiglass, a primer coating is provided on the upper surface of the plexiglass, an anchoring bus bar is provided on the primer coating, a conductive film layer is fixedly provided on the primer coating, a protective coating is provided on the conductive film layer, a second bus bar is provided at a position corresponding to the anchoring bus bar on the protective coating, a conductive adhesive is provided above the second bus bar, and a current-carrying electrode is provided on the upper surface of the protective coating, and the current-carrying electrode is provided directly above the conductive adhesive. The main purpose of the present invention is to solve the problem that there is a lack of an electrode structure for electrically heated plexiglass with excellent compatibility and stability in the prior art.

[0019] The terms "first", "second", "third", "fourth", etc. (if any) in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "comprising" or "having" and any variation thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] For ease of understanding, the specific process of the embodiments of the present invention will be described below. The first embodiment of the electrode structure of the electrically heated plexiglass provided by the present invention includes:

[0021] Plexiglass, a primer coating is applied on the upper surface of the plexiglass, an anchoring busbar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is applied on the conductive film layer, a second busbar is arranged at a position corresponding to the anchoring busbar on the protective coating, a conductive adhesive is arranged above the second busbar, and a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

[0022] The primer coating of the plexiglass electric heating structure includes transparent organic coatings such as epoxy resin type, acrylic type, polyurethane type, etc.

[0023] The conductive film layer of the plexiglass electric heating structure includes inorganic conductive film layers such as metal (Au, Ag, Cu, etc.) coating layers, metal oxide (ITO, AZO, FTO, IZO, etc.) coating layers.

[0024] The anchoring busbar of the electrode structure is to make a layer of anchoring busbar in a specific area on the plexiglass surface for direct bonding with the plexiglass substrate in the electrode structure. The anchoring materials include conductive adhesives and silver pastes that have sufficient bonding strength with the organic transparent material substrate.

[0025] The second busbar in the electrode structure is to make a current-collecting busbar above the anchoring busbar on the plexiglass surface for contact and current collection between the electrode structure and the conductive film layer. The busbar materials include conductive adhesives and silver pastes that have bonding strength with the conductive film layer.

[0026] The current-carrying electrode in the electrode structure is bonded to the busbar by using a conductive adhesive, and is used to share the current-carrying of the busbar and expand the current-carrying capacity of the electrode structure. The conductive adhesive material includes conductive adhesives and low-temperature curing silver pastes that have sufficient bonding strength with the busbar. The current-carrying electrode material includes metal (Au, Ag, Cu) sheet or filamentous braided tape conductive materials.

[0027] The plexiglass is polycarbonate glass or acrylic glass.

[0028] The conductive adhesive is a conductive glue.

[0029] The second embodiment of the electrode structure of the electrically heated plexiglass provided by the present invention includes:

[0030] Plexiglass, a primer coating is applied on the upper surface of the plexiglass, an anchored busbar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is applied on the conductive film layer, a second busbar is arranged at a position corresponding to the anchored busbar on the protective coating, a conductive adhesive is arranged above the second busbar, and a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

[0031] The plexiglass-1 is acrylic glass, and the anchored busbar 5 on the acrylic glass is a conductive glue.

[0032] Construction of the acrylate primer coating 2 and the ITO conductive film layer 3 is completed on the anchored busbar 5.

[0033] Printing of the second busbar 6 is carried out on the conductive film layer 3, and the second busbar 6 is silver paste.

[0034] After the second busbar 6 is completed, construction of the polyurethane surface protective coating 4 of the conductive film layer is carried out.

[0035] Prepare the conductive adhesive 7 and the current-carrying electrode 8. The conductive adhesive 7 is a conductive glue, and the current-carrying electrode 8 is a copper braided tape. Bond the current-carrying electrode 8 to the second busbar 6 through the conductive adhesive 7.

[0036] The third embodiment of the electrode structure of the electrically heated plexiglass provided by the present invention includes:

[0037] Plexiglass, a primer coating is applied on the upper surface of the plexiglass, an anchored busbar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is applied on the conductive film layer, a second busbar is arranged at a position corresponding to the anchored busbar on the protective coating, a conductive adhesive is arranged above the second busbar, and a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

[0038] The plexiglass 1 is polycarbonate glass.

[0039] The anchoring bus bar 5 on the plexiglass is silver paste.

[0040] The second bus bar 6 is silver paste.

[0041] The conductive adhesive 7 is conductive glue, and the current-carrying electrode 8 is a copper sheet.

[0042] The fourth embodiment of the electrode structure of the electrically heated plexiglass provided by the present invention includes:

[0043] Plexiglass, the upper surface of the plexiglass is coated with a primer coating, an anchoring bus bar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is coated on the conductive film layer, a second bus bar is arranged at a position corresponding to the anchoring bus bar on the protective coating, a conductive adhesive is arranged above the second bus bar, and a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

[0044] The plexiglass 1 is acrylic glass.

[0045] The anchoring bus bar 5 on the plexiglass is conductive glue.

[0046] The second bus bar 6 is conductive glue.

[0047] The conductive adhesive 7 is conductive glue, and the current-carrying electrode 8 is a copper braid.

[0048] Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the above-described system or device and unit can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0049] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An electrode structure for electrically heating organic glass, characterized in that: include: Organic glass, wherein the upper surface of the organic glass is coated with a primer coating, an anchoring busbar is arranged on the primer coating, a conductive film layer is fixedly arranged on the primer coating, a protective coating is coated on the conductive film layer, a second busbar is arranged at a position of the protective coating corresponding to the anchoring busbar, a conductive adhesive is arranged above the second busbar, a current-carrying electrode is arranged on the upper surface of the protective coating, and the current-carrying electrode is arranged directly above the conductive adhesive.

2. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The primer layer includes: epoxy resin, acrylic acid and polyurethane transparent organic coatings.

3. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The conductive film layer is a metal inorganic conductive coating layer or a metal oxide inorganic conductive coating layer.

4. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The anchoring busbar is conductive glue.

5. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The second busbar is made of silver paste.

6. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The current-carrying electrode is a copper braided belt or a copper sheet.

7. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The organic glass is polycarbonate glass or acrylic glass.

8. The electrode structure of electrically heated organic glass according to claim 1, characterized in that: The conductive adhesive is conductive glue.

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