Anti-condensation ceramic tile and temperature control method thereof

Abstract

The application discloses an anti-condensation ceramic tile and a temperature control method thereof, and belongs to the technical field of building materials. The anti-condensation ceramic tile comprises a ceramic tile body, an induction heating coil, a sensor and a controller. The ceramic tile body comprises a protective layer and an eddy current heating layer; the induction heating coil is laid non-contactly below the ceramic tile body; the sensor is used for monitoring temperature and / or humidity; and the controller judges condensation risk according to sensor data and controls the induction heating coil to work. When there is a condensation risk, the controller drives the induction heating coil to generate an alternating magnetic field, so that the eddy current heating layer generates eddy current and generates heat, thereby rapidly increasing the temperature of the ceramic tile surface to above the dew point, and preventing condensation. The application adopts non-contact induction heating, has the advantages of quick response, safety and energy saving, intelligent control and convenience in installation and maintenance, and effectively solves the problem of ceramic tile surface condensation in humid areas.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building materials, in particular to an anti-condensation ceramic tile and a temperature control method thereof. BACKGROUND

[0002] In the humid climate areas of southern China, the phenomenon of "back to the south" often occurs. At this time, the cold ceramic tile surface in the room meets warm and humid air, which is easy to reach dew point temperature and condense water droplets. This not only affects the safety of walking and damages the indoor environment, but also easily breeds mold in long-term dampness, which is harmful to health.

[0003] Currently, there are mainly two ways to solve the problem of wall or ceramic tile condensation:

[0004] One is to use porous materials such as diatomite and zeolite to prepare building materials or coatings with moisture absorption and release functions, and to adjust air humidity through physical adsorption. For example, a gypsum-based anti-condensation interior insulation and decoration integrated system is disclosed in the announcement No. CN217205044U. However, the humidity control capacity of such materials has an upper limit, and it is easy to saturate and fail in a continuous high-humidity environment, and the moisture absorption may affect the performance and service life of the material itself.

[0005] The second is to heat the ceramic tile by built-in heating wires or far-infrared heating bodies to increase the surface temperature. However, this kind of technology generally has the following shortcomings: a. large thermal inertia, slow response, difficult to quickly respond to sudden humid weather; b. high energy consumption, the heating body usually needs to work continuously to maintain the temperature; c. safety hazards, exposed electrode joints or insulation aging have the risk of electric leakage in humid environment; d. affect the paving and maintenance, the connection of the wires limits the flexible arrangement and replacement of the ceramic tiles.

[0006] Therefore, there is a need for a ceramic tile anti-condensation solution that can quickly respond, intelligently control, be safe and energy-saving, and be easy to install. SUMMARY

[0007] In view of the shortcomings of the prior art, the purpose of the present application is to provide an anti-condensation ceramic tile and a temperature control method thereof.

[0008] An anti-condensation ceramic tile, comprising:

[0009] a ceramic tile body, the ceramic tile body comprising a protection layer and a vortex heating layer stacked in order from top to bottom;

[0010] an induction heating coil laid below the ceramic tile body and in non-electric contact with the ceramic tile body; the induction heating coil generates electromagnetic induction after being electrified, thereby heating the vortex heating layer;

[0011] The vortex heating layer is a metal material layer or a PTC material layer.

[0012] The application further comprises a sensor for monitoring the surface temperature and / or humidity of the ceramic tile body and / or environmental parameters.

[0013] and a controller electrically connected with the sensor and the induction heating coil, the controller being configured to perform the following steps: calculating the environmental dew point temperature according to the sensor data; comparing the ceramic tile surface temperature with the environmental dew point temperature plus a safety threshold; and controlling the on-off or power size of the induction heating coil according to the comparison result.

[0014] In the application, the induction heating coil is laid on a leveling layer or a special support.

[0015] In the application, a thermal insulation layer is arranged below the eddy current heating layer.

[0016] In the application, an array is composed of a plurality of the ceramic tile bodies and a plurality of the induction heating coils, and the controller controls the array in a partitioned manner.

[0017] In the application, the induction heating coil has a concentric square nested structure, a concentric square surrounding structure or a vortex structure.

[0018] In the application, the induction heating coil comprises a plurality of miniaturized coil units arranged in a matrix.

[0019] In the application, the eddy current heating layer comprises a plurality of local heating areas arranged in a matrix.

[0020] The application further provides a temperature control method for the anti-condensation ceramic tile, comprising the following steps:

[0021] S1: acquiring the ceramic tile surface temperature Ts, the environmental humidity RH and the environmental temperature Ta in real time through a sensor;

[0022] S2: calculating the current environmental dew point temperature Td according to the environmental humidity RH and the environmental temperature Ta by a controller;

[0023] S3: comparing the ceramic tile surface temperature Ts with the environmental dew point temperature Td by the controller;

[0024] S4: if Ts ≤ Td + ΔT, starting or increasing the power of the induction heating coil by the controller; if Ts > Td + ΔT, decreasing or shutting down the power of the induction heating coil by the controller, and ΔT is a preset safety threshold of 1-3℃;

[0025] S5: returning to S1 after waiting for a sampling period, and starting the next cycle.

[0026] The application has the following beneficial effects:

[0027] The application provides an anti-condensation ceramic tile and a temperature control method thereof, which directly and quickly heats the surface layer of the ceramic tile by using the eddy current effect in a non-electric contact induction heating mode, significantly reduces thermal inertia, and responds quickly; the sensor and the controller are combined to intelligently judge the condensation risk and accurately control heating, thereby avoiding continuous ineffective heating and reducing energy consumption; the induction heating coil is electrically isolated from the ceramic tile body, thereby completely eliminating the safety hazard of electric leakage; the coil is independently arranged below the ceramic tile, does not affect the paving, replacement and maintenance of the ceramic tile itself, and is convenient for installation and construction. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and / or additional aspects and advantages of the application will become apparent and be readily understood from the following description, taken in connection with the accompanying drawings, in which:

[0029] Figure 1 It is a longitudinal sectional view of the ceramic tile in Example 1.

[0030] Figure 2 It is a schematic view of the heat insulation layer structure in Example 1.

[0031] Figure 3 It is a longitudinal sectional view of the ceramic tile in Example 2.

[0032] Figure 4 It is a schematic view of the connection of the controller, the sensor and the ceramic tile in Example 2.

[0033] Figure 5 It is a schematic view of the structure of the radial heat conduction strip in Example 2.

[0034] Figure 6 It is a schematic view of the structure of the grid-shaped heat conduction strip in Example 2.

[0035] Figure 7 It is a schematic view of the structure of the strip-shaped heat conduction strip in Example 2.

[0036] Figure 8 It is a schematic view of the structure of the large-area arrangement of the ceramic tile in Example 3.

[0037] Figure 9 It is a schematic view of the structure of the induction heating coil in Example 4.

[0038] Figure 10 It is a schematic view of the arrangement of the miniaturized induction heating coil in Example 4.

[0039] Figure 11 It is a schematic view of the structure of the eddy current heating layer in Example 4.

[0040] Figure 12 It is a logic block diagram of the temperature control method in Example 5.

[0041] The reference signs are: 10-tile body, 20-induction heating coil, 101-protection layer, 102-eddy current heating layer, 103-biscuit, 104-thermal insulation layer, 301-surface temperature sensor, 302-surface humidity sensor, 303-environmental temperature sensor, 304-environmental humidity sensor, 40-controller, 105-heat-conducting strip, 106-local heating area. DETAILED DESCRIPTION

[0042] The present application provides an anti-condensation ceramic tile and a temperature control method thereof. In order to make the purpose, technical scheme and effect of the present application more clear and explicit, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0043] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] Example 1

[0045] As shown in Figure 1 , the present embodiment discloses an anti-condensation ceramic tile, which comprises a tile body 10 and an induction heating coil 20.

[0046] The tile body 10 comprises a protection layer 101, an eddy current heating layer 102 and a biscuit 103 stacked in order from top to bottom. The protection layer 101 is a conventional ceramic glaze, which provides decoration and wear resistance functions. The eddy current heating layer 102 is a film or sheet made of PTC material, which can be made by PVD, CVD, spraying, coating, sol-gel or printing process, etc. The biscuit 103 is made of insulating and heat-insulating material (such as ceramic, gypsum).

[0047] The induction heating coil 20 is laid on the leveling layer or special support under the tile body 10 and is not in electrical contact with the tile body 10.

[0048] The induction heating coil generates electromagnetic induction after being energized, thereby heating the eddy current heating layer. The surface temperature of the ceramic tile is increased by not less than 1℃ at an environmental temperature of 25℃.

[0049] Further, as shown in Figure 2 , a layer of thermal insulation layer 104 is further provided between the eddy current heating layer 102 and the biscuit 103, which is used to reduce the downward heat loss.

[0050] Example 2:

[0051] As Figure 3 shown, the difference between this embodiment and embodiment 1 is that the eddy current heating layer 102 is made of aluminum sheet.

[0052] Further, as Figure 4 shown, surface temperature sensor 301 and surface humidity sensor 302 are embedded into the surface of the tile body 10, and ambient temperature sensor 303, ambient humidity sensor 304 and controller 40 are installed in the surrounding environment, such as a room. All the sensors are wired or wirelessly connected to the controller 40, and the output end of the controller 40 is connected to the power driver of the induction heating coil 20.

[0053] In operation, the controller 40 determines the risk of condensation according to the sensor data (tile surface temperature, humidity, and ambient temperature, humidity). When heating is needed, the controller 40 drives the coil to pass high-frequency alternating current or electric pulse to generate an alternating magnetic field. The magnetic field penetrates the body 103, causing eddy currents to generate heat inside the eddy current heating layer 102, and the heat is quickly transmitted to the protective layer 101 to increase the surface temperature.

[0054] In addition, non-contact surface temperature sensors and non-contact surface humidity sensors (such as infrared, optical or visual surface humidity sensors) can also be used. This way, the engineering of placing sensors on the surface of the tile can be eliminated. For example, Ts is measured by a non-contact surface temperature sensor; RH is measured by an ambient humidity sensor, and Ta is measured by an ambient temperature sensor. Then, whether the surface will soon condense can be calculated, and heating is started before condensation. The non-contact surface temperature sensor can scan the entire tile wall or floor and implement point processing.

[0055] As Figures 5 to 7 shown, to improve thermal uniformity and mechanical bonding, heat-conducting strips 105 are molded or etched on the back of the metal sheet. This structure can quickly spread the heat generated by eddy currents laterally to the entire tile area, while increasing the contact area with the body 103 and providing stronger bonding. The heat-conducting strips 105 are radially arranged on the eddy current heating layer 102; of course, they are not limited to being radial, but can also be grid-shaped, or sequentially arranged strips.

[0056] Embodiment 3:

[0057] As Figure 8As shown in the illustration, this embodiment demonstrates an arrangement suitable for large-area walls or floors. Multiple ceramic tile bodies 10 are arranged in a matrix, and below each tile body 10, multiple sets of induction heating coils 20 are arranged in a matrix array corresponding to the area of ​​the tile body 10. These multiple sets of induction heating coils 20 together constitute a heating array. All coils are centrally controlled by a single controller 40. Sensors can be configured in zones, or information can be obtained through remote monitoring and scanning using a few non-contact sensors. This design allows for targeted heating of localized high-humidity areas, resulting in more precise control and better energy efficiency.

[0058] Example 4:

[0059] This embodiment provides induction heating coils 20 with different structural shapes.

[0060] like Figure 9 As shown, the induction heating coil 20 has a concentric square nested structure. Figure 9 (a) means that multiple concentric square coils of decreasing size are nested inwards to form a heating surface corresponding to the area of ​​the eddy current heating layer 102; or, the induction heating coil 20 is a concentric square ring structure. Figure 9 (b) One end of the coil is located at the edge of the eddy current heating layer 102, and the other end is located at the center of the eddy current heating layer 102, with the two ends connected by a wire; or, the induction heating coil 20 is a vortex structure. Figure 9 (c) One end of the coil is located at the edge of the eddy current heating layer 102, and the other end is located at the center of the eddy current heating layer 102. The two ends are connected by a wire. This regular coil structure can generate a relatively stable alternating magnetic field, which makes the eddy current generated on the eddy current heating plate more stable, thereby ensuring the stability of the heating process and facilitating precise control of parameters such as heating temperature and heating time.

[0061] like Figure 10 Is Figure 9 Further improvements are made based on the existing design. Specifically, the induction heating coils 20, which have concentric square nested structures, concentric square surrounding structures, or vortex structures, are miniaturized and multiple coils are arranged in a matrix to form a heating surface sufficient to cover the eddy current heating layer 102. This heating surface composed of multiple induction heating coils 20 can achieve heating of different areas and intensities by controlling the on / off state or current magnitude of different coils. For example, when higher temperatures are required in some parts and lower temperatures are required in others, the corresponding coils can be adjusted to meet diverse heating needs.

[0062] Furthermore, in addition to the overall eddy current heating layer 102, this embodiment also provides eddy current heating layers with different structural shapes, such as... Figure 11As shown, the eddy current heating layer 102 consists of multiple locally heated areas 106 arranged in a matrix. The shapes of these locally heated areas 106 can be heart-shaped, star-shaped, or triangular, etc., and can be fabricated using PVD or CVD with a mask. These locally heated areas 106 have small areas, concentrate the energy of the induction coil, and heat up faster. Furthermore, local heating modes can be corresponding to individual patterns, avoiding large-area ineffective heating, resulting in energy efficiency and reduced energy waste. The surface can be coated with a transparent glaze to create decorative patterns.

[0063] Example 5:

[0064] like Figure 12 As shown, this embodiment provides a temperature control method for anti-condensation ceramic tiles used in the above embodiments, including the following steps:

[0065] S1: System initialization, read data from each sensor (surface temperature Ts, ambient humidity RH, ambient temperature Ta).

[0066] S2: Calculate the precise dew point temperature Td of the current environment based on RH and Ta.

[0067] S3: Compare Ts with (Td + ΔT). ΔT is the preset safety threshold of 1-3℃.

[0068] S4: Judgment logic: If Ts ≤ Td + ΔT, it indicates that there is a risk of condensation, so start the coil heating or increase the heating power; if Ts > Td + ΔT, it indicates that the surface temperature is safe, so reduce the power or turn off the heating.

[0069] S5: After waiting for one sampling period (e.g., 30 seconds), return to S1 and start the next loop.

[0070] Furthermore, when the eddy current heating layer 102 uses PTC material, even if the controller 40 outputs maximum power, the heating power will automatically decrease when its temperature reaches the PTC Curie point, forming a safety redundancy at the hardware level.

[0071] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. An anti-condensation ceramic tile, characterized by, The anti-condensation ceramic tile comprises: a ceramic tile body comprising a protective layer and a vortex heating layer stacked in sequence from top to bottom; an induction heating coil laid under the ceramic tile body and in non-electric contact with the ceramic tile body; the induction heating coil generates electromagnetic induction when energized, thereby heating the vortex heating layer; the vortex heating layer is a PTC material layer.

2. The anti-condensation ceramic tile according to claim 1, further comprising a sensor for monitoring the surface temperature and / or humidity of the ceramic tile body, and / or environmental parameters; and a controller electrically connected with the sensor and the induction heating coil, the controller being configured to perform the following steps: calculating the environmental dew point temperature according to the sensor data; comparing the ceramic tile surface temperature with the environmental dew point temperature plus a safety threshold; and controlling the on-off or power of the induction heating coil according to the comparison result. The induction heating coil is laid on a leveling layer or a special support. The anti-condensation ceramic tile further comprises a thermal insulation layer arranged below the vortex heating layer.

3. The anti-condensation tile according to claim 1, wherein The array is composed of a plurality of the ceramic tile bodies and a plurality of the induction heating coils, and the controller controls the array in zones.

4. The anti-condensation tile of claim 1, wherein, The induction heating coil has a concentric square nested structure, a concentric square surrounding structure or a vortex structure.

5. The anti-condensation tile of claim 1, wherein, The induction heating coil comprises a plurality of miniaturized coil units arranged in a matrix.

6. The anti-condensation tile of claim 1, wherein, The vortex heating layer comprises a plurality of local heating areas arranged in a matrix.

7. The anti-condensation tile of claim 1, wherein, The method comprises the following steps:

8. The anti-condensation tile of claim 1, wherein, S1: acquiring the ceramic tile surface temperature Ts, the environmental humidity RH and the environmental temperature Ta in real time through a sensor; 9. A temperature control method for the anti-condensation tile according to any one of claims 1 to 8, characterized in that, S2: calculating the current environmental dew point temperature Td according to the environmental humidity RH and the environmental temperature Ta by the controller; S3: comparing the ceramic tile surface temperature Ts with the environmental dew point temperature Td by the controller; S4: if Ts ≤ Td + ΔT, starting or increasing the power of the induction heating coil by the controller; if Ts > Td + ΔT, decreasing or shutting off the power of the induction heating coil by the controller, ΔT being a preset safety threshold of 1-3℃; S5: after waiting for a sampling period, returning to S1 to start the next cycle. ​ ​

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