A heatable table board

Abstract

The utility model discloses a kind of heatable heat preservation table board, including first substrate and second substrate, the front and rear of first substrate are covered with second substrate respectively, by opening gap slot in the corresponding position of first substrate that needs heat preservation, utilize two second substrate coverings to form semi-closed containing cavity to place heating assembly, provide suitable mounting space for heating assembly, installation, replacement is convenient, without complex mounting structure and additional accessories, reduce the machining process and material consumption in production process, simultaneously, also reduce the heat loss of heating element to outside, without long time high-power power-on heating heat preservation, PET film layer covers double-layer substrate outer surface, effectively blocks heat transfer to external environment, further enhance the insulation performance and heat preservation performance of table board, and can protect substrate, avoid substrate to be scratched, abraded and damaged in daily use process.

Description

Technical Field

[0001] This utility model relates to the field of composite board technology, and in particular to a heatable and heat-insulating tabletop. Background Technology

[0002] Traditional heated and insulated tabletops often use a single-layer substrate structure. With this structure, the heating element is directly attached to the substrate surface or only covered with a thin layer of insulation at the location requiring heating and insulation. Heat is concentrated and conducted to the contact area, causing a rapid temperature rise at the heating element's location and creating a significant temperature difference with the edges. This localized high temperature can easily burn users and accelerates the aging of the substrate material. Furthermore, a single-layer substrate and simple insulation layer cannot effectively prevent heat loss to the surrounding areas, requiring continuous power to compensate for heat loss. On the other hand, some tabletops use embedded heating components, making replacement difficult if damaged. Installing heating components on other tabletops requires additional mounting brackets or connecting structures to secure them, increasing production costs and assembly / disassembly difficulty. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a heatable and heat-insulating tabletop with a simple structure, reduced heat loss, no need for long-term high-power operation, and convenient installation and replacement of the heating components.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A heatable and heat-insulating tabletop includes a first substrate and a second substrate. The first substrate has a notch or groove. The front and back of the first substrate are respectively covered by the second substrate. The notch or groove forms a semi-closed accommodating cavity between the two layers of the second substrate. The accommodating cavity contains a heating component. The heating component includes an insulating sleeve and a heating element. The insulating sleeve covers the heating element. The heating element is electrically connected to an external power source. The surface of the second substrate away from the first substrate and the four sides of the first and second substrates are covered with a PET film layer. The PET film layer has clearance positions corresponding to the accommodating cavity.

[0006] In a preferred embodiment, the heating element is a flexible heating sheet.

[0007] In a preferred embodiment, the heating element is connected to a PID controller.

[0008] In a preferred embodiment, each surface of the accommodating cavity is provided with a thermally conductive silicone grease layer.

[0009] In a preferred embodiment, one heating component is housed at each of the upper and lower ends of the accommodating cavity, and a cooling fan is provided between the two heating components.

[0010] In a preferred embodiment, the upper and lower end faces of the accommodating cavity are provided with grooves, and the insulating sleeve is provided with a protrusion, which is inserted into the groove.

[0011] In a preferred embodiment, a soft plug is connected to one end of the heating component facing the notch groove, and the soft plug is embedded in the notch groove.

[0012] In a preferred embodiment, the first substrate is OSB (Oriented Strand Board), and the second substrate is solid wood board or MDF (Medium-density Fiberboard).

[0013] Compared with the prior art, the present invention has at least the following advantages:

[0014] 1. The heatable and heat-insulating table of this utility model has a notch groove opened at the corresponding position of the heating and heat-insulating part on the first substrate, and a semi-closed accommodating cavity is formed by covering it with two layers of second substrate to place the heating component. This provides a suitable installation space for the heating component, making installation and replacement convenient. It does not require a complicated installation structure and additional accessories, reducing the processing steps and material consumption in the production process. At the same time, it also reduces the heat loss of the heating element to the outside world, eliminating the need for long-term high-power heating and heat preservation.

[0015] 2. The heatable and heat-insulating table of this utility model covers the outer surface of the double-layer substrate with a PET film layer, which effectively blocks the heat from being transferred to the external environment, further enhancing the insulation and heat preservation performance of the table, and protecting the substrate from scratches, wear and other damage during daily use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0017] Figure 1 This is a side view of a heatable and heat-insulating tabletop in one embodiment of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view at point A;

[0019] Figure 3 This is a schematic diagram of the arrangement of the heating components on the first substrate of this utility model. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. It should also be understood that the terms "upper," "lower," "front," "rear," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] See Figures 1 to 3 The heatable and heat-insulating table includes a first substrate 100 and a second substrate 200. A notch 110 is formed on the first substrate 100. The front and back of the first substrate 100 are respectively covered by the second substrate 200. The notch 110 forms a semi-closed accommodating cavity 120 between the two layers of the second substrate 200. A heating component 400 is placed in the accommodating cavity 120. The heating component 400 includes an insulating sleeve 410 and a heating element 420. The insulating sleeve 410 covers the heating element 420. The heating element 420 is electrically connected to an external power source. The surface of the second substrate 200 away from the first substrate 100 and the four sides of the first substrate 100 and the second substrate 200 are covered with a PET film layer 300. A clearance position is provided on the PET film layer 300 corresponding to the accommodating cavity 120.

[0023] The aforementioned heatable and heat-insulating table has a notch 110 on the first substrate 100 at the corresponding position requiring heat insulation. Two layers of second substrates 200 cover the notch to form a semi-enclosed accommodating cavity 120 to house the heating component 400. This design utilizes the structural characteristics of the substrate itself, eliminating the need for complex installation structures and additional accessories. It provides suitable installation space for the heating component 400, making installation and replacement convenient and reducing processing steps and material consumption during production. At the same time, it also reduces heat loss from the heating element 420. The heating element 420 is encased in an insulating sleeve 410 to prevent electrical leakage and other safety hazards between the heating element 420 and surrounding substrates or other components, ensuring safe use. Furthermore, placing the heating component 400 within the accommodating cavity 120 prevents the heating element 420 from being directly exposed to the outside, reducing damage to the heating element 420 from external factors and extending its service life. The PET film layer 300 possesses excellent insulation, heat resistance, and abrasion resistance, further enhancing the insulation performance of the tabletop and protecting the substrate from scratches, abrasions, and other damage during daily use. With its low thermal conductivity, the PET film layer 300 effectively blocks heat transfer to the external environment, improving insulation performance. A clearance feature is incorporated into the PET film layer 300 to avoid the opening of the receiving cavity 120, facilitating the installation and replacement of the heating component 400 while preventing stress concentration and cracking during heating and insulation. Thus, this type of insulated heating tabletop features a simple structure, convenient installation and replacement of the heating component 400, reduced heat loss, and eliminates the need for prolonged high-power operation, resulting in energy savings and safety.

[0024] In some embodiments, the first substrate 100 is OSB and the second substrate 200 is solid wood or MDF. During manufacturing, the first substrate 100 and the second substrate 200 are glued together, and the PET film layer 300 is bonded to the outer surface of the first substrate 100 and the second substrate 200 connected together by a cold pressing process.

[0025] Preferably, the heating element 420 is a flexible heating sheet. The entire heating surface of the flexible heating sheet can heat up synchronously with small temperature deviation, avoiding the uneven resistance and local high temperature that may occur with the linear heating element 420. The flexible heating sheet wrapped with the insulating sleeve 410 can be attached to the surface of the second substrate 200 within the accommodating cavity 120 without additional support, and the thickness of the first substrate 100 can be reduced.

[0026] To improve energy efficiency and enhance safety, the heating element 420 is connected to a PID controller (not shown in the diagram) for on / off control and / or dynamic power regulation of the heating element 420. In one specific implementation, the PID controller monitors the actual temperature of the heating element 420 in real time, compares it with the preset temperature, and continuously adjusts the power output of the heating element 420 to quickly and accurately stabilize the actual temperature near the set value. By precisely controlling the power of the heating element 420, the PID controller can dynamically adjust the heating power according to actual needs, avoiding energy waste caused by the heating element 420 operating at excessively high power for extended periods. In another specific implementation, the PID controller monitors the actual temperature of the heating element 420 in real time. When the temperature exceeds the maximum limit of the preset temperature range, it controls the disconnection of the power circuit for the heating element 420; when the temperature falls below the minimum limit of the preset temperature range, it controls the connection of the power circuit for the heating element 420. It is understood that the PID controller can work in conjunction with temperature sensors, power regulation components, etc., to achieve the above control.

[0027] To improve heat conduction of the heating element 420, a thermally conductive silicone grease layer is provided on each surface inside the accommodating cavity 120. The thermally conductive silicone grease layer helps to distribute heat evenly within the accommodating cavity 120, preventing the heating element 420 from being damaged by rapid temperature rise due to heat accumulation, and also helps to disperse thermal stress on the contact surface of the substrate it is attached to.

[0028] In some tabletops with a large accommodating cavity 120, a heating element 400 is housed at both the upper and lower ends of the cavity 120, forming a dual-heat-source heating mode. Heat is dissipated simultaneously from both directions, providing more comprehensive coverage of the cavity 120 and the tabletop area it contacts compared to a single heat source. This effectively reduces temperature dead zones and results in a more uniform temperature distribution across the tabletop. A cooling fan 430 operates between the two heating elements 400, accelerating airflow within the cavity 120 and distributing the heat generated by the heating elements 400 more quickly and evenly to all parts of the tabletop, further enhancing heating uniformity. It is understandable that the number of accommodating cavities 120 and heating elements 400 can be adjusted according to the area and shape of the tabletop. The cooling fan 430 can work in conjunction with temperature sensors and controllers to achieve precise temperature control and improve energy efficiency.

[0029] To ensure the stability of the heating component 400 assembly, grooves 121 are provided on the upper and lower end faces of the accommodating cavity 120, and a protrusion 411 is provided on the insulating sleeve 410. During assembly, the protrusion 411 is inserted into the groove 121. Furthermore, a soft plug 440 is connected to one end of the heating component 400 facing the notch 110, and the soft plug 440 is embedded in the notch 110. The soft plug 440, connected to one end of the heating component 400 and embedded in the notch 110, can play a certain role in fixing the heating component 400, preventing the heating component 400 from shifting due to vibration, shaking, or other factors during use on the table, ensuring that the heating component 400 is always in the correct position. The soft plug 440 also has a certain degree of elasticity, which can absorb and disperse some vibration energy, reducing the direct impact of vibration on the heating component 400. Moreover, the soft plug 440 can prevent dust, moisture, etc. from entering the accommodating cavity 120, avoiding affecting the normal operation of the heating component 400.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A heatable and heat-insulating tabletop, characterized in that, The device includes a first substrate and a second substrate. The first substrate has a notch or groove. The front and back of the first substrate are respectively covered by the second substrate. The notch or groove forms a semi-closed accommodating cavity between the two layers of the second substrate. The accommodating cavity contains a heating component. The heating component includes an insulating sleeve and a heating element. The insulating sleeve covers the heating element. The heating element is electrically connected to an external power source. The surface of the second substrate away from the first substrate and the four sides of the first and second substrates are covered with a PET film layer. The PET film layer has clearance positions corresponding to the accommodating cavity.

2. The heatable and heat-insulating tabletop according to claim 1, characterized in that, The heating element is a flexible heating sheet.

3. The heatable and heat-insulating tabletop according to claim 2, characterized in that, The heating element is connected to a PID controller.

4. The heatable and heat-insulating tabletop according to claim 3, characterized in that, Each surface inside the cavity is provided with a thermally conductive silicone grease layer.

5. The heatable and heat-insulating tabletop according to claim 4, characterized in that, The upper and lower ends of the accommodating cavity each house one of the heating components.

6. The heatable and heat-insulating tabletop according to claim 5, characterized in that, A cooling fan is provided between the two heating components.

7. The heatable and heat-insulating tabletop according to claim 6, characterized in that, The upper and lower surfaces of the accommodating cavity are provided with grooves, and the insulating sleeve is provided with a protrusion, which is inserted into the groove.

8. The heatable and heat-insulating tabletop according to claim 7, characterized in that, A soft plug is connected to one end of the heating component facing the notch, and the soft plug is embedded in the notch.

9. The heatable and heat-insulating tabletop according to claim 1, characterized in that, The first substrate is OSB (Oriented Strand Board), and the second substrate is solid wood or MDF (Medium-density Fiberboard).

Images