Low-attenuation, long-life far-infrared plate

Abstract

The utility model discloses a low attenuation, long -lived far -infrared board belongs to far -infrared board technical field, the utility model discloses a low attenuation, long -lived far -infrared board includes metal base plate, and metal base plate is equipped with recess, and the bottom and the four -around of recess inside are equipped with insulating layer, and the bottom insulating layer is equipped with conductive silver line layer, and the conductive silver line layer is equipped with far -infrared coating, and the recess mouth is equipped with far -infrared glass, and the cavity is formed between far -infrared coating and far -infrared glass. The utility model discloses far -infrared board's base plate adopts the metal plate, has good high -temperature stability, and long -term use will not appear deformation, melting phenomenon under high temperature, and far -infrared coating and far -infrared glass do not contact, and far -infrared glass will not happen thermal expansion, deformation or glaze melting in long -term use, and far -infrared coating will not appear fracture phenomenon, effectively reduces power attenuation and prolongs the service life of far -infrared board.

Description

Technical Field

[0001] This utility model belongs to the field of far-infrared plate technology, specifically relating to a far-infrared plate with low attenuation and long lifespan. Background Technology

[0002] Most common far-infrared panels currently use microcrystalline glass or ceramic materials as substrates coated with far-infrared coatings. Microcrystalline glass or ceramic materials are prone to thermal expansion, deformation or glaze melting under long-term high temperature, resulting in decreased transmittance or structural damage. The far-infrared coating applied to the surface will also deform and crack. Long-term use will lead to a significant decrease in the power of the far-infrared panel and a significant reduction in its lifespan. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a far-infrared plate with low attenuation and long life, which solves the problems of low life and high energy loss of existing far-infrared plates.

[0004] The low-attenuation, long-life far-infrared panel provided by this invention has a metal substrate with good high-temperature stability. It will not deform or melt during long-term use at high temperatures, effectively extending the service life of the far-infrared panel. Secondly, a cavity is provided between the far-infrared glass and the far-infrared coating to reduce the impact of the high-temperature far-infrared coating on the far-infrared glass, such as thermal expansion, deformation, or glaze melting. Simultaneously, due to the high transmittance of the far-infrared glass, far-infrared absorption is significantly reduced, energy loss is decreased, and the energy conversion efficiency of the far-infrared panel is effectively improved.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] This utility model provides a far-infrared plate with low attenuation and long life, including a metal substrate, a groove in the metal substrate, an insulating layer in the bottom and around the inside of the groove, a conductive silver wire layer in the bottom insulating layer, a far-infrared coating in the conductive silver wire layer, a far-infrared glass in the groove opening, and a cavity formed between the far-infrared coating and the far-infrared glass.

[0007] In some embodiments, the metal substrate is a high-temperature resistant metal substrate.

[0008] In some embodiments, the metal substrate is a nickel-based high-temperature alloy.

[0009] In some embodiments, the groove is square.

[0010] In some embodiments, the height of the metal substrate is 4-15 mm.

[0011] In some embodiments, the depth of the groove is 3-14 mm.

[0012] In some embodiments, the insulating layer is a ceramic-based composite material.

[0013] In some embodiments, the thickness of the insulating layer is 50-200 μm.

[0014] In some embodiments, the insulating layer is obtained by high-temperature spraying. Currently, the insulating layer is obtained by screen printing. However, during the screen printing process, poor printing of the insulating coating and thermal expansion issues after long-term use can lead to breakage of the insulating layer. This directly results in problems such as power attenuation, leakage, and short lifespan of the far-infrared panel after long-term use. The insulating layer obtained by high-temperature spraying can effectively avoid the aforementioned problems.

[0015] In some embodiments, the conductive silver wire layer includes a first conductive silver wire and a second conductive silver wire, which are disposed parallel to each other at the edge of the bottom insulating layer.

[0016] In some embodiments, the metal substrate has a first lead opening and a second lead opening, the first lead opening being located at the end of a first conductive silver wire, and the second lead opening being located at the end of a second conductive silver wire. The lead openings are used for connecting power leads to the conductive silver wires.

[0017] In some embodiments, the far-infrared coating is graphene.

[0018] In some embodiments, the far-infrared glass is microcrystalline glass.

[0019] In some embodiments, the thickness of the far-infrared glass is 2-10 mm.

[0020] In some embodiments, an insulating layer is provided on the outside of the metal substrate for insulation protection; the insulating layer is preferably a ceramic matrix composite material.

[0021] This invention uses a grooved metal substrate (such as a nickel-based high-temperature alloy plate) as the substrate. An insulating layer is sprayed at high temperature onto the inner surface (bottom and sides) of the groove. After cooling, a conductive silver wire is applied to the bottom surface of the inner substrate and dried. Then, a far-infrared coating is applied to the bottom surface of the inner substrate and dried. Finally, high-temperature adhesive is used to bond the far-infrared glass to the groove of the metal substrate (nickel-based high-temperature alloy plate). A cavity is formed between the far-infrared coating and the far-infrared glass, preventing direct contact and acting as a power insulator, replacing the previous method of directly coating the glass substrate with a far-infrared coating. This method and structure effectively prevent leakage of the far-infrared plate. Furthermore, the lack of contact between the far-infrared coating and the far-infrared glass prevents thermal expansion, deformation, or glaze melting of the far-infrared glass during long-term use, and prevents cracking of the far-infrared coating, effectively reducing power attenuation and extending the service life of the far-infrared plate. It is applicable to all structures using ovens.

[0022] The far-infrared panel of this invention exhibits excellent thermal stability, showing no surface deformation or scorching even after prolonged use, resulting in a long service life. At high temperatures (400 degrees Celsius), the power attenuation of the far-infrared heating panel is low. It also possesses good insulation properties, preventing leakage even after long-term use at high temperatures. The high transmittance of the far-infrared glass reduces energy reflection or absorption losses at the interface, thereby lowering the thermal load on the far-infrared coating, minimizing unnecessary losses, and increasing the conversion efficiency of the far-infrared panel.

[0023] The beneficial effects of this utility model are:

[0024] The substrate of the far-infrared plate of this invention is made of metal plate, which has good high-temperature stability and will not deform or melt during long-term use at high temperatures. The far-infrared coating and the far-infrared glass do not come into contact, so the far-infrared glass will not thermally expand, deform or melt during long-term use, and the far-infrared coating will not crack, effectively reducing power attenuation and extending the service life of the far-infrared plate. Attached Figure Description

[0025] Figure 1 This is an exploded isometric view of the far-infrared plate with low attenuation and long lifespan of this utility model.

[0026] Figure 2 This is an exploded front view of the far-infrared plate with low attenuation and long life of this utility model.

[0027] Figure 3 This is a front view of the far-infrared plate with low attenuation and long lifespan of this utility model.

[0028] Figure 4 This is a cross-sectional view of the far-infrared plate with low attenuation and long lifespan of this utility model.

[0029] Among them, 1. metal substrate, 2. insulating layer, 3. conductive silver wire layer, 31. first conductive silver wire, 32. second conductive silver wire, 4. far-infrared coating, 5. far-infrared glass, 6. cavity, 71. first lead opening, 72. second lead opening. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in this utility model do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0032] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 This invention provides a far-infrared plate with low attenuation and long lifespan, comprising a metal substrate 1, a groove in the metal substrate 1, an insulating layer 2 at the bottom and around the perimeter of the groove, a conductive silver wire layer 3 on the bottom insulating layer, a far-infrared coating 4 on the conductive silver wire layer 3, and a far-infrared glass 5 at the opening of the groove, forming a cavity 6 between the far-infrared coating 4 and the far-infrared glass 5. The insulating layer 2, the conductive silver wire layer 3, and the far-infrared coating 4 are all located within the groove of the metal substrate.

[0033] In one specific embodiment, the metal substrate 1 is a high-temperature resistant metal substrate with good high-temperature stability.

[0034] In one specific embodiment, the metal substrate 1 is a nickel-based high-temperature alloy.

[0035] In one specific embodiment, the groove is square.

[0036] In one specific embodiment, the height of the metal substrate 1 is 4-15mm, such as 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 15mm, etc.

[0037] In one specific embodiment, the depth of the groove is 3-14mm, such as 3mm, 4mm, 5mm, 7mm, 9mm, 11mm, 14mm, etc.

[0038] In one specific embodiment, the insulating layer 2 is a ceramic matrix composite material, which has good insulation and high temperature stability.

[0039] In one specific embodiment, the thickness of the insulating layer 2 is 50-200μm, such as 50μm, 60μm, 80μm, 100μm, 120μm, 150μm, 180μm, 200μm, etc.

[0040] In one specific embodiment, the insulating layer 2 is obtained by high-temperature spraying.

[0041] In one specific embodiment, the conductive silver wire layer 3 includes a first conductive silver wire 31 and a second conductive silver wire 32, which are arranged parallel to each other at the edge of the bottom insulating layer.

[0042] In one specific embodiment, the metal substrate 1 is provided with a first lead opening 71 and a second lead opening 72. The first lead opening 71 is located at the end of the first conductive silver wire 31, and the second lead opening 72 is located at the end of the second conductive silver wire 32. The lead openings are used for connecting power leads to conductive silver wires.

[0043] In one specific embodiment, the far-infrared coating 4 is graphene.

[0044] In one specific embodiment, the far-infrared glass 5 is microcrystalline glass.

[0045] In one specific embodiment, the thickness of the far-infrared glass 5 is 2-10mm, such as 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc.

[0046] In one specific embodiment, the metal substrate 1 is provided with an insulating layer on the outside for insulation protection; the insulating layer is a ceramic matrix composite material.

[0047] The substrate of the far-infrared plate of this invention is made of metal plate, which has good high-temperature stability and will not deform or melt during long-term use at high temperatures. The far-infrared coating and the far-infrared glass do not come into contact, so the far-infrared glass will not thermally expand, deform or melt during long-term use, and the far-infrared coating will not crack, effectively reducing power attenuation and extending the service life of the far-infrared plate.

[0048] This invention provides a process for preparing a far-infrared plate with low attenuation and long lifespan:

[0049] (1) A square groove is machined on one side of a nickel-based high-temperature alloy substrate, and a lead wire opening is machined on the side wall of the groove.

[0050] In one specific embodiment, a square pit with a depth of 5 mm is machined on one side surface of a 6 mm thick nickel-based high-temperature alloy plate, and two lead wire openings are machined at the end of the alloy plate for leading out the positive and negative terminals of the power supply.

[0051] (2) Then, an insulating layer is sprayed at high temperature on the bottom and around the inside of the groove. The thickness of the insulating layer is kept at about 100μm, and then cooled.

[0052] In one specific embodiment, an insulating layer is also sprayed onto the exterior of the nickel-based high-temperature alloy substrate at high temperature.

[0053] (3) Two parallel conductive silver wires are coated on the bottom edge of the groove. The conductive silver wires are dried through the lead opening.

[0054] (4) Apply a far-infrared coating to the bottom of the groove and dry it.

[0055] (5) Use high-temperature adhesive to attach 4mm far-infrared glass to the groove opening.

[0056] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of the present utility model.

Claims

1. A far-infrared panel with low attenuation and long lifespan, characterized in that, It includes a metal substrate (1), the metal substrate (1) has a groove, the bottom and the sides of the groove are provided with an insulating layer (2), a conductive silver wire layer (3) is provided on the bottom insulating layer, a far-infrared coating (4) is provided on the conductive silver wire layer (3), a far-infrared glass (5) is provided at the groove opening, and a cavity (6) is formed between the far-infrared coating (4) and the far-infrared glass (5).

2. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The metal substrate (1) is a high-temperature resistant metal substrate; The groove is square.

3. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The metal substrate (1) is a nickel-based high-temperature alloy.

4. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The height of the metal substrate (1) is 4-15 mm; The depth of the groove is 3-14 mm.

5. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The insulating layer (2) is a ceramic-based composite material; The thickness of the insulating layer (2) is 50-200 μm.

6. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The conductive silver wire layer (3) includes a first conductive silver wire (31) and a second conductive silver wire (32), which are arranged parallel to each other at the edge of the bottom insulating layer.

7. The low-attenuation, long-life far-infrared plate according to claim 6, characterized in that, The metal substrate (1) is provided with a first lead opening (71) and a second lead opening (72). The first lead opening (71) is located at the end of the first conductive silver wire (31), and the second lead opening (72) is located at the end of the second conductive silver wire (32).

8. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The far-infrared coating (4) is graphene; The far-infrared glass (5) is a microcrystalline glass.

9. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The thickness of the far-infrared glass (5) is 2-10mm.

10. The low-attenuation, long-life far-infrared plate according to claim 1, characterized in that, The metal substrate (1) has an insulating layer on its exterior.

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