A hot plate

Abstract

The utility model discloses a heating plate, including the plate body and heater, the recess is set up on the outside of plate body, the recess includes a plurality of first direction recess and a plurality of second direction recess, two first direction recesss of adjacent each other parallel, two second direction recesss of adjacent each other parallel, the second direction recess and the first direction recess are set up together and cross each other, the outside of plate body still is provided with the anti -sticky coating, the heater includes a plurality of heating wires, and a plurality of heating wires set up on the inside of plate body. The utility model discloses through setting up a plurality of recesses on the outside of plate body, when the heat seal of heating plate to barrier membrane and bottom shell, the heat seal layer of barrier membrane melts, under the effect of a plurality of recesses, the surface of barrier membrane produces deformation to the recess, thereby make the vacuum heat insulating board heat seal edge place form the pattern, effectively increase the heat seal strength of barrier membrane and bottom shell heat seal together, thereby improve the service life of vacuum heat insulating board.

Description

Technical Field

[0001] This utility model relates to the field of heating technology, and in particular to a heating plate. Background Technology

[0002] Shell-type four-side-sealed vacuum insulation panels typically include a bottom shell, core material, adsorbent, and barrier membrane. When manufacturing a shell-type four-side-sealed vacuum insulation panel, the core material and adsorbent are first placed inside the bottom shell, and then the barrier membrane is placed on top of the bottom shell. After vacuuming, a heating plate is used to press on the barrier membrane. The heating plate heats the barrier membrane and melts the heat-sealing layer of the bottom shell, thus heat-sealing the barrier membrane and the bottom shell together.

[0003] In related technologies, when the heating plate heats the barrier film, the heat seal strength between the barrier film and the bottom shell is insufficient, which affects the service life of the vacuum insulation panel. Utility Model Content

[0004] Based on the aforementioned problems in the prior art, the purpose of this application is to provide a heating plate that has multiple grooves on its outer surface, with these grooves intersecting each other. When the heating plate heats and heat-seales the barrier film and the bottom shell, the heat-sealing layer of the barrier film melts. Under the action of the multiple grooves, the surface of the barrier film deforms into the grooves, thereby forming a pattern at the heat-sealed edge of the vacuum insulation plate. This effectively increases the heat-sealing strength of the barrier film and the bottom shell, thereby improving the service life of the vacuum insulation plate.

[0005] The technical solution adopted by this application to solve its technical problem is: a heating plate, including a plate body and a heater;

[0006] The outer surface of the plate is provided with grooves, the grooves include multiple first-direction grooves and multiple second-direction grooves, two adjacent first-direction grooves are parallel to each other, two adjacent second-direction grooves are parallel to each other, and the second-direction grooves and the first-direction grooves are arranged intersectingly together. The outer surface of the plate is also provided with an anti-stick coating; the heater includes multiple heating wires, which are arranged on the inner surface of the plate.

[0007] Furthermore, the first directional groove and the second directional groove are perpendicular to each other.

[0008] Furthermore, the anti-stick coating is a Teflon coating.

[0009] Furthermore, the groove is a V-shaped groove.

[0010] Furthermore, the depth of the V-shaped groove is 0.1mm-0.3mm, and the opening angle of the V-shaped groove is 30°-60°.

[0011] Furthermore, the spacing between two adjacent first-direction grooves is 0.7mm-2mm; the spacing between two adjacent second-direction grooves is 0.7mm-2mm.

[0012] Furthermore, the plate is an aluminum plate.

[0013] Furthermore, the heating wire is a U-shaped heating wire.

[0014] Furthermore, the plate body is provided with mounting holes, and the heating wire located on one side of the mounting holes deforms in a direction away from the mounting holes to form a bent portion.

[0015] Furthermore, a receiving groove is provided on the plate, and the heating wire is embedded in the receiving groove on the plate.

[0016] Furthermore, the side of the plate is provided with countersunk holes for mounting temperature sensors.

[0017] The beneficial effects of this application are as follows: During use, the outer surface of the heating plate presses against the barrier membrane. After heating, the heat-sealing layers of the barrier membrane and the bottom shell melt. Because multiple first-direction grooves and multiple second-direction grooves are provided on the outer surface of the plate, and these grooves intersect, the surface of the barrier membrane deforms into the first and second-direction grooves during the heat-sealing process. This creates a pattern at the heat-sealed edge of the vacuum insulation panel, effectively increasing the heat-sealing strength between the barrier membrane and the bottom shell, thereby improving the service life of the vacuum insulation panel. When heating is required, multiple independent heating wires rapidly generate heat at different locations on the plate, resulting in more uniform heat generation. This heat can diffuse along the first and second-direction grooves, making heat conduction more uniform and allowing the heating plate to heat the barrier membrane evenly. By providing an anti-stick coating on the outer surface of the plate, the heating plate will not lift the barrier membrane when it rises and separates from it. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the inner side of the heating plate in this application;

[0019] Figure 2 This is a schematic diagram of the outer side of the heating plate in this application;

[0020] Figure 3 for Figure 2 A magnified view of a section at point X;

[0021] Figure 4 for Figure 3 Cross-sectional view at point AA.

[0022] Explanation of reference numerals in the attached figures

[0023] Plate 1, first direction groove 11, second direction groove 12, anti-stick coating 13, mounting hole 14, heater 2, heating wire 21, bending part 22. Detailed Implementation

[0024] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 4 As shown, a heating plate of this utility model includes a plate body 1 and a heater 2. A groove is provided on the outer side of the plate body 1. The groove includes multiple first-direction grooves 11 and multiple second-direction grooves 12. Two adjacent first-direction grooves 11 are parallel to each other, and two adjacent second-direction grooves 12 are parallel to each other. The second-direction grooves 12 and the first-direction grooves 11 are arranged intersectingly together. An anti-stick coating 13 is also provided on the outer side of the plate body 1. The heater 2 includes multiple heating wires 21, which are arranged on the inner side of the plate body 1.

[0026] Thus, the heating plate of this utility model, when in use, has its outer surface pressed against a barrier film. After heating, the heat-sealing layers of the barrier film and the bottom shell melt. Because multiple first-direction grooves 11 and multiple second-direction grooves 12 are provided on the outer surface of the plate 1, and these grooves intersect, the surface of the barrier film deforms into the first-direction grooves 11 and second-direction grooves 12 during the heat-sealing process. This creates a pattern at the heat-sealed edge of the vacuum insulation plate, effectively increasing the heat-sealing strength between the barrier film and the bottom shell, thereby improving the service life of the vacuum insulation plate. When heating is required, multiple independent heating wires 21 heat different locations on the plate 1, resulting in more uniform heat generation. This heat can diffuse along the first-direction grooves 11 and second-direction grooves 12, making heat conduction more uniform, thus allowing the heating plate to heat the barrier film evenly. By providing an anti-stick coating 13 on the outer side of the plate 1, the heating plate will not lift the barrier film when it rises and separates from the barrier film.

[0027] Multiple heating wires 21 are independently and evenly distributed on the plate 1, which enables the heating plate to generate heat quickly and heat more evenly.

[0028] In this embodiment, the first direction groove 11 and the second direction groove 12 are perpendicular to each other, and the distance between two adjacent first direction grooves 11 is equal to the distance between two adjacent second direction grooves 12. In this way, a uniform diamond pattern is formed at the heat-sealed edge of the vacuum insulation board, which increases the heat-sealing strength of the barrier film and the bottom shell and improves the service life of the vacuum insulation board.

[0029] In a preferred embodiment, the anti-stick coating 13 is a Teflon coating with a thickness of 0.02mm-0.08mm. Teflon coating is a fluorocarbon coating. After the plate 1 is treated with Teflon coating, the plate 1 possesses properties such as non-stick, high temperature resistance, low friction, corrosion resistance, anti-sticking and moisture resistance, and high insulation. These properties of the Teflon coating ensure that when the heating plate rises and separates from the barrier film, the heating plate will not lift the barrier film.

[0030] like Figure 4 As shown, further, the groove is a V-shaped groove with a depth H of 0.1mm-0.3mm and an opening angle A of 30°-60°. For example, if the depth H of the V-shaped groove is 0.2mm and the opening angle A is 45°, the V-shaped groove can be quickly formed on the outer side of the plate 1 using a V-shaped milling cutter during processing.

[0031] Preferably, the distance L between two adjacent first-direction grooves 11 is 0.7mm-2mm; the distance L between two adjacent second-direction grooves 12 is 0.7mm-2mm. For example, the distance L between two first-direction grooves 11 is 1.3mm; the distance L between two adjacent second-direction grooves 12 is also 1.3mm, so that a uniform diamond pattern is formed at the heat-sealed edge of the vacuum insulation board.

[0032] In this embodiment, plate 1 is an aluminum plate, which has good thermal conductivity and uniform heat conduction. Heating wire 21 is a U-shaped heating wire 21, which can be riveted to plate 1.

[0033] In a preferred embodiment of this invention, a mounting hole 14 is provided on the plate 1. The heating wire 21 located on one side of the mounting hole 14 deforms in a direction away from the mounting hole 14 to form a bent portion 22, thereby increasing the space around the mounting hole 14 and facilitating the installation of the plate 1 and the pressure plate. The plate 1 may also have a receiving groove for accommodating the heating wire 21. The heating wire 21 is embedded in the receiving groove of the plate 1, resulting in a flat surface after the heating wire 21 is installed on the plate 1, facilitating the installation of the plate 1 and the pressure plate and enabling the heating plate to rise and fall.

[0034] In this embodiment of the invention, the side of the plate 1 is provided with countersunk holes for mounting temperature sensors. Specifically, nine sets of countersunk holes are provided, allowing the plate 1 to mount nine sets of temperature sensors to detect the temperature of different areas. Together with independently arranged heating wires, precise temperature control is achieved, ensuring the temperature uniformity of the entire plate.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heating plate, comprising a plate body and a heater; characterized in that: The outer surface of the plate is provided with grooves, the grooves include multiple first-direction grooves and multiple second-direction grooves, two adjacent first-direction grooves are parallel to each other, two adjacent second-direction grooves are parallel to each other, and the second-direction grooves and the first-direction grooves are arranged intersectingly together. The outer surface of the plate is also provided with an anti-stick coating; the heater includes multiple heating wires, which are arranged on the inner surface of the plate.

2. The heating plate as described in claim 1, characterized in that: The first directional groove and the second directional groove are perpendicular to each other.

3. The heating plate as described in claim 1, characterized in that: The anti-stick coating is a Teflon coating.

4. The heating plate as described in claim 1, characterized in that: The groove is a V-shaped groove.

5. The heating plate according to claim 4, wherein: The depth of the V-shaped groove is 0.1mm-0.3mm, and the opening angle of the V-shaped groove is 30°-60°.

6. The heating plate as described in claim 1, characterized in that: The spacing between two adjacent first-direction grooves is 0.7mm-2mm; the spacing between two adjacent second-direction grooves is 0.7mm-2mm.

7. The heating plate as described in claim 1, characterized in that: The plate is made of aluminum.

8. The heating plate as described in claim 1, characterized in that: The plate is provided with mounting holes, and the heating wire located on one side of the mounting holes deforms in a direction away from the mounting holes to form a bent part.

9. The heating plate as described in claim 8, characterized in that: The plate is provided with a receiving groove, and the heating wire is embedded in the receiving groove on the plate.

10. The heating plate as described in claim 1, characterized in that: The side of the plate is provided with countersunk holes for mounting temperature sensors.

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