Electric heating flooring, flooring and flooring installation methods

Abstract

This invention discloses an electric heating floor panel, floor, and floor installation method. It includes a heating element laid on an electric heating substrate, with the heating element thermally connected to several heat exchange boxes containing evaporating liquid. Heating plates arranged at the edge of the electric heating substrate extend into adjacent heat exchange boxes. A piston pusher plate is slidably disposed in one heat exchange box, and the piston pusher plate is connected to a contact rod that cooperates to press a touch switch. An elastic push block and an electromagnet are disposed on the slidably disposed electrical connector. When the touch switch is pressed, the electromagnet and an alarm light are activated. This invention improves the heating uniformity of various parts of the electric heating substrate through the coordinated arrangement of the heat exchange boxes and heating plates. Furthermore, through the coordinated arrangement of the evaporating liquid, piston pusher plate, touch switch, electromagnet, and alarm light, the heating element is de-energized and the alarm light illuminates when the floor cannot dissipate heat properly, preventing the floor from continuing to heat up when it cannot dissipate heat properly, which could easily cause a fire.

Description

Technical Field

[0001] This invention relates to the field of heated flooring technology, specifically to an electrically heated flooring panel, flooring, and flooring installation method. Background Technology

[0002] In the cold winter, to meet indoor heating requirements, air conditioners, heaters, and stoves are commonly used. With the improvement of people's living standards and the development of science and technology, underfloor heating systems have gradually appeared on the market. These systems achieve heating by laying hot water pipes or electric heating materials under the floor. Existing electric heating floor panels are typically long and narrow, consisting of a surface layer for walking on and a base plate beneath the surface layer. The base plate is usually made of wood, but can also be made of composite materials or other materials. The base plate contains heating elements, connecting wires, and plugs for connecting to an external power source. When the electric heating floor panels are assembled into a floor, applying electricity to the panels heats the heating film, generating heat and thus keeping the indoor environment warm.

[0003] In the prior art, a buffer-adjustable heating floor with publication number CN206903129U includes a lower base plate, on which several arrayed shock-absorbing devices are fixed. Each shock-absorbing device includes a movable column, a spring, and a shock-absorbing seat. A shock-absorbing support plate is fixed on the movable column, and the shock-absorbing seat includes a base and a guide column. The two ends of the spring are respectively sleeved on the guide column and the movable column. A middle base plate, a heating layer, and an upper base plate are sequentially arranged on the shock-absorbing device. A first insulating layer is provided between the middle base plate and the heating layer, and a second insulating layer is provided between the heating layer and the upper base plate. A rectangular groove is formed on the heating layer to hold a heating element. The heating element is connected to an electrode groove and an electrode connector at both ends of the rectangular groove. By combining the shock-absorbing device with the heating element, not only is the comfort of the human foot improved, but the heating speed of the heating element is also improved. It has the characteristics of simple structure, low cost, and long service life.

[0004] However, existing technologies still have significant drawbacks. For example, the electric heating element can only contact and heat the heating layer it is in contact with, resulting in uneven heating of different parts of the heating layer. In particular, due to structural limitations, the electric heating element cannot extend to both ends of the floor, causing the approximately 10-centimeter seam at both ends of the floor to remain in a cold state after installation, resulting in corrugated deformation of the floor. In addition, the electric heating element lacks self-control capabilities. When the floor is covered by clothing or other external objects, significantly reducing its heat dissipation efficiency, the electric heating element continues to heat up, causing heat to accumulate and not dissipate, reaching temperatures as high as over 100 degrees Celsius, which can easily cause a fire and poses a significant safety hazard. Summary of the Invention

[0005] The purpose of this invention is to provide an electrically heated floor panel, flooring, and flooring installation method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An electric heating floor panel includes a heating element laid on an electric heating substrate, with an electrical plug and an electrical connector at each end of the heating element. The heating element is thermally connected to several heat exchange boxes that internally store evaporating liquid. Heating plates arranged at the edge of the electric heating substrate extend into the evaporating liquid inserted into the adjacent heat exchange box. At least one heat exchange box has a piston pusher plate slidably disposed therein, which divides the heat exchange box into a heat exchange chamber for storing evaporating liquid and an empty chamber for not storing evaporating liquid. An elastic connecting block is fixedly connected between the piston pusher plate and the inner wall of the heat exchange box. The piston pusher plate is fixedly connected to a pressure rod extending away from the heat exchange chamber, and the pressure rod slides out of the heat exchange box. A pressure switch that presses against the pressure rod is disposed on the electric heating substrate.

[0008] The sliding electrical connector is provided with an elastic push block that pushes it to electrically connect with the electrical plug on the adjacent heating plate, and the electrical connector is magnetically connected to an electromagnet that pulls it to disconnect from the electrical plug on the adjacent heating plate. When the touch switch is pressed, the electromagnet located on the same heating plate will work, and the warning light on the floor where the adjacent heating plate is located will light up.

[0009] Preferably, each end of the heating element is fixedly connected to a fitting rod and a fitting cylinder, and the electrical plug is fixedly installed on the end of the fitting rod away from the heating element and electrically connected to the heating element through a wire. A guide rod parallel to its axis is fixedly installed inside the fitting cylinder, and a sliding plate is slidably fitted outside the guide rod. An electrical connector is fixedly connected to the end face of the sliding plate away from the heating element and electrically connected to the heating element through a wire. The elastic push block is fixedly connected between the sliding plate and the inner wall of the fitting cylinder. The electromagnet is fixedly connected to the inner wall of the fitting cylinder near the heating element, and an iron plate attracted to the electromagnet's magnetism is provided on the end face of the sliding plate near the electromagnet.

[0010] Preferably, the end of the fitting rod away from the heating element has a guide slot for the guide rod to slide into.

[0011] Preferably, an auxiliary insert is fixedly connected to the end face of the slide away from the heating element, and an auxiliary plug that is fitted into the auxiliary insert is fixedly connected to the fitting rod.

[0012] Preferably, the slide plate and the electrical connector are fixedly connected by an insulating plate.

[0013] Preferably, the heat exchange box and the heating element are fixedly connected by thermally conductive silicone grease.

[0014] Preferably, the heating elements are arranged in a zigzag pattern on the electric heating substrate, and multiple heat exchange boxes are evenly distributed between adjacent heating elements. In the heat exchange boxes that are not adjacent to the heating plates at the edge of the electric heating substrate, heating plates extend outward toward the direction of the adjacent heat exchange boxes.

[0015] Preferably, the outer wall of the heat exchange box is fixedly connected to a limiting block, and the electric heating plate is provided with a limiting slot for the limiting block to fit and be inserted.

[0016] A floor includes the aforementioned electrically heated floor panel. The floor also includes a lower base plate, a lower insulating plate, an upper insulating plate, and an upper base plate arranged sequentially from bottom to top. The electrically heated base plate is located between the lower insulating plate and the upper insulating plate, and a warning light is fixedly installed on the upper surface of the upper base plate.

[0017] A method for installing flooring, using the aforementioned flooring, includes the following steps:

[0018] A. Assemble the lower substrate, lower insulating plate, electric heating substrate, upper insulating plate and upper substrate to form a multi-layer floor structure;

[0019] B. Assemble adjacent floorboards so that the electrical plugs of the floorboards are inserted into the electrical connectors of the adjacent floorboards, thereby assembling multiple floorboards into an electrically connected floorboard assembly.

[0020] C. Connect the electrical plug located on the first end of the floor assembly to an external power source, and connect the electrical connector located on the last end of the floor assembly to an external power source.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The electric heating flooring, floor, and floor installation method of the present invention heat the area of ​​the electric heating substrate that is not in contact with the heating element by setting a heat exchange box that is thermally connected to the heating element, thereby improving the heating uniformity of the electric heating substrate. By setting a heating plate extending into the heat exchange box at the edge of the electric heating substrate, the edge of the electric heating substrate is heated, avoiding the problem of corrugation and deformation caused by the edge of the electric heating substrate being in a cold state. Furthermore, through the coordinated arrangement of evaporating liquid, piston push plate, touch switch, electromagnet and warning light, the heating element is de-energized and the warning light is activated when the floor cannot dissipate heat properly, thereby preventing the floor from continuing to heat when it cannot dissipate heat properly and easily causing a fire. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the floor structure of the present invention;

[0024] Figure 2 This is a top view schematic diagram of the electrothermal ground plate in this invention;

[0025] Figure 3This is a top view cross-sectional diagram of the electrothermal ground plate in this invention;

[0026] Figure 4 for Figure 3 A schematic diagram showing the connection between a heat exchange box without a piston pusher and a heating plate located at the edge of the electric heating substrate.

[0027] Figure 5 for Figure 3 A schematic diagram of the internal structure of a heat exchanger with a piston pusher plate.

[0028] Figure 6 for Figure 5 A schematic diagram showing the sliding of the piston push plate causing the contact rod to press against the contact switch.

[0029] Figure 7 for Figure 3 A schematic diagram of the internal structure of the heat exchange box with the heating plate located far from the edge of the electric heating substrate.

[0030] Figure 8 This is a schematic diagram showing the connection between the electrical plug and the heating element in this invention;

[0031] Figure 9 This is a schematic diagram showing the connection between the electrical connector and the heating element in this invention;

[0032] Figure 10 for Figure 9 Enlarged schematic diagram of the connection between the middle sliding plate and the guide rod;

[0033] Figure 11 This is a schematic diagram of the assembly of two adjacent heating substrates in this invention;

[0034] Figure 12 for Figure 11 Diagram showing the electrical connection of the power connector and plug;

[0035] Figure 13 for Figure 11 A schematic diagram showing the sliding plate moving the electrical connector away from the electrical plug.

[0036] In the diagram: 1. Heating substrate, 2. Heating element, 3. Heat exchange box, 4. Heating plate, 5. Piston push plate, 6. Elastic connecting block, 7. Touch rod, 8. Touch switch, 9. Electrical plug, 10. Electrical connector, 11. Elastic push block, 12. Electromagnet, 13. Warning light, 14. Fitting rod, 141. Guide slot, 15. Fitting sleeve, 16. Guide rod, 17. Slide plate, 18. Iron plate, 19. Auxiliary sleeve, 20. Auxiliary plug, 21. Insulating plate, 22. Thermal grease, 23. Limiting block, 24. Lower substrate, 25. Lower insulating plate, 26. Upper insulating plate, 27. Upper substrate. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-13 The present invention provides a technical solution:

[0039] Example 1:

[0040] An electric heating floor panel includes a heating element 2 laid on an electric heating substrate 1. Specifically, the electric heating substrate 1 has grooves for placing the heating element 2. The grooves limit the placement position of the heating element 2, preventing it from shifting on the electric heating substrate 1. In this embodiment, the heating element 2, with its resistance heating wire structure, is arranged in a zigzag pattern on the electric heating substrate 1, with its two ends located at opposite corners of the electric heating substrate 1. Each end of the heating element 2 is electrically connected to an electrical plug 9 and an electrical connector 10. Specifically, the electrical plug 9 and the electrical connector 10 are electrically connected to the heating element 2 via wires. The electrical plug 9 extends out of the electric heating substrate 1, and the electrical connector 10 is located on the electric heating substrate 1. When an external power source is applied, the heating element 2 is energized and emits heat. The heating element 2 transfers the heat to the heating substrate 1 through thermal conduction, causing the heating substrate 1 to emit heat to the outside. When multiple heating substrates 1 are used in combination, the electrical plug 9 of the heating element 2 on one heating substrate 1 is extended to the electrical connector 10 of the heating element 2 on the adjacent heating substrate 1. The electrical plug 9 and the electrical connector 10 are matched to make the heating elements 2 on the adjacent heating substrates 1 electrically connected, thereby assembling multiple heating substrates 1. When in use, the electrical plug 9 of the heating element 2 on the first heating substrate 1 and the electrical connector 10 of the heating element 2 on the last heating substrate 1 are connected to the circuit, so that the heating elements 2 on multiple heating substrates 1 work and generate heat together.

[0041] Multiple heat exchange boxes 3, each containing evaporating liquid, are evenly distributed between adjacent plates of the heating element 2. Limiting blocks 23 are fixedly connected to the outer wall of the heat exchange box 3, and a limiting slot is provided on the heating substrate 1 for the limiting blocks 23 to fit into. The matching of the limiting blocks 23 and the limiting slot improves the installation stability of the heat exchange box 3. The heat exchange box 3 and the heating element 2 are thermally connected. Specifically, an empty slot for placing the heat exchange box 3 is provided on the heating substrate 1, and the empty slot for placing the heat exchange box 3 is connected to the groove for placing the heating element 2. By filling the connection between the empty slot and the groove with thermally conductive silicone grease, the plates between the heating elements 2 and the heat exchange box 3 are fixedly connected by thermally conductive silicone grease 22. The thermally conductive silicone grease 22 has good thermal conductivity, so that the heat on the heating element 2 is transferred to the heat exchange box 3. The heat exchange box 3 heats the area of ​​the heating substrate 1 located between the plates between the heating elements 2, so that all parts of the heating substrate 1 are heated evenly.

[0042] Heating plates 4 arranged at the edge of the heating substrate 1 extend into the evaporating liquid inserted into the adjacent heat exchange box 3. The heat emitted by the heating element 2 is transferred to the evaporating liquid through the heat exchange box 3, and then transferred to the heating plates 4 through the evaporating liquid. This allows the heating plates 4 arranged at the edge of the heating substrate 1 to heat the edge of the heating substrate 1, improving the uniformity of heating of each part of the heating substrate 1 and avoiding the problem of corrugation deformation that easily occurs when the edge of the heating substrate 1 is in a cold state. Heating plates 4 extending outward from the heat exchange box 3 that are not adjacent to the heating plates 4 at the edge of the heating substrate 1 extend towards the adjacent heat exchange box 3, further improving the heating effect of the area of ​​the heating substrate 1 between the plates separated by the heating element 2, thereby making the heating of each part of the heating substrate 1 uniform. In this embodiment, heat exchange fins are provided on the plate of the heating plate 4 that extends into the heat exchange box 3. The provision of heat exchange fins improves the heat exchange efficiency between the heating plate 4 and the evaporating liquid in the heat exchange box 3, thereby improving the heating effect of the heating plate 4 on the heating substrate 1.

[0043] A piston pusher plate 5 is slidably arranged in a heat exchange box 3. The piston pusher plate 5 divides the heat exchange box 3 into a heat exchange chamber for storing evaporating liquid and an empty chamber for not storing evaporating liquid. An elastic connecting block 6 is fixedly connected between the piston pusher plate 5 and the inner wall of the heat exchange box 3. A pressure rod 7 extending away from the heat exchange chamber is fixedly connected to the piston pusher plate 5. The pressure rod 7 slides out of the heat exchange box 3. A pressure switch 8 is provided on the heating plate 1 and is pressed and engaged with the pressure rod 7. The pressure switch 8 is fixedly installed on the heating plate 1. The pressure rod 7 is located between the piston pusher plate 5 and the pressure switch 8. The evaporating liquid is water or other non-toxic and harmless liquid with a boiling point close to that of water. The pressure switch 8 is a T681P intelligent wireless pressure transmitter. The pressure switch 8 sends a signal when it is pressed by an external force and stops sending a signal when the external force is removed.

[0044] When the floor is dissipating heat normally, the evaporator transfers heat to the heating plate 4 and is discharged into the external environment. The air pressure in the heat exchange chamber remains stable. The piston pusher 5 remains stable under the push of the elastic connecting rod 6, so that the pressure rod 7 also remains stable and moves away from the pressure switch 8. The pressure switch 8 is not working. When clothing or other items that hinder heat dissipation are covered on the floor, the heat in the evaporator cannot be dissipated in time and continues to receive heat from the heating element 2, causing the evaporator to heat up due to heat accumulation. The evaporator heats up and vaporizes in large quantities, causing the air pressure in the heat exchange chamber to increase and push the piston pusher 5 towards the pressure switch 8. The pressure rod 7 moves towards the pressure switch 8 under the action of the piston pusher 5 until the pressure rod 7 presses against the pressure switch 8. When the pressure switch 8 is pressed by an external force, it sends a signal to cut off the power to the heating element 2 and stop it from continuing to heat up, thus avoiding the problem that the heating element 2 may cause a fire if it continues to heat up. It also causes the warning light 13 on the floor where the adjacent heating plate 1 is located to light up, thereby alerting personnel that there are items on the floor that affect its heat dissipation, so that the staff can remove the items. In this embodiment, the warning light 13 is an LED light with its own power supply, and the LED light power supply is equipped with an ADN4612ACPZ analog switch that is connected to the signal of the T681P intelligent wireless pressure transmitter. When the ADN4612ACPZ analog switch receives the signal from the T681P intelligent wireless pressure transmitter, it controls the power supply to send power to the LED, thereby causing the LED light to light up and alarm.

[0045] The sliding electrical connector 10 is provided with an elastic push block 11 that pushes it to electrically connect with the electrical plug 9 on the adjacent heating substrate 1. The electrical connector 10 is also magnetically connected to an electromagnet 12 that pulls it away from the electrical plug 9 on the adjacent heating substrate 1. In this embodiment, the electromagnet 12 has a built-in power supply with an ADN4612ACPZ analog switch, and the ADN4612ACPZ analog switch is signal-connected to the T681P intelligent wireless pressure transmitter. When the touch switch 8 is not subjected to external pressure, the electromagnet 12 does not operate, and the electrical connector 10 remains stable under the push of the elastic push block 11. This ensures that when two adjacent floorboards are in contact, the heating substrate 1 of the other floorboard... The power plug 9 is inserted into the power connector 10 on the heating substrate 1 of the floor, thereby keeping the heating elements 2 on the two heating substrates 1 electrically connected. When the touch switch 8 is pressed by the touch rod 7 and sends a signal, the ADN4612ACPZ analog switch controls the electromagnet 12 to be energized when it receives the signal from the T681P intelligent wireless pressure transmitter. The electromagnet 12 is magnetic and uses magnetic force to pull the power connector 10 away from the power plug 9 on the adjacent heating substrate 1, thereby disconnecting the power connector 10 from the power plug 9 on the adjacent heating substrate 1, thereby de-energizing the heating element 2 and stopping it from continuing to heat up, thus avoiding the problem of the heating element 2 continuing to heat up and easily causing a fire.

[0046] Example 2:

[0047] Example 2 optimizes the structure of the electrical plug 9 and electrical connector 10 based on Example 1. Specifically, each end of the heating element 2 is fixedly connected with a fitting rod 14 and a fitting cylinder 15. The fitting rod 14 extends out of the heating substrate 1, and the fitting plug 15 is located in a groove opened in the heating substrate 1. When assembling adjacent floorboards, the fitting rod 14 on the heating substrate 1 is inserted into the fitting plug 15 on the adjacent heating substrate 1 to achieve the assembly between adjacent floorboards. The electrical plug 9 is fixedly installed on the end of the fitting rod 14 away from the heating element 2 and is electrically connected to the heating element 2 through a wire. A guide rod 16 parallel to its axis is fixedly provided inside the fitting cylinder 15, and a guide slot 141 for the guide rod 16 to slide into is opened at the end of the fitting rod 14 away from the heating element 2. The cooperative arrangement of the guide rod 16 and the guide slot 141 further improves the stability of the assembly between adjacent heating substrates 1, thereby improving the stability of the electrical connection between adjacent heating elements 2.

[0048] A sliding plate 17 is slidably mounted on the outer side of the guide rod 16. The sliding plate 17 slides axially along the guide rod 16, and the electrical connector 10 is fixedly connected to the end face of the sliding plate 17 away from the heating element 2 and electrically connected to the heating element 2 via a wire. The sliding plate 17 and the guide rod 16 guide the sliding process of the electrical connector 10, ensuring that the electrical connector 10 slides towards or away from the electrical plug 9, thus preventing the electrical connector 10 from shifting or becoming misaligned and unable to connect electrically to the electrical plug 9. The elastic push block 11 is fixedly connected to the inner wall of the sliding plate 17 and the fitting insert 15. Between them, the electromagnet 12 is fixedly connected to the inner wall of the fitting tube 15 near the heating element 2, and the end face of the slide plate 17 near the electromagnet 12 is provided with an iron plate 18 that is magnetically attracted to the electromagnet 12. When the electromagnet 12 is de-energized, the slide plate 17 is pushed by the elastic push block 11 to approach the fitting rod 14, so that the electrical connector 10 and the electrical plug 9 are electrically connected. When the electromagnet 12 is energized, the electromagnet 12 attracts the iron plate 18, so that the iron plate 18 drives the slide plate 17 away from the fitting rod 14, thereby causing the electrical connector 10 and the electrical plug 9 to lose the electrical connection.

[0049] Furthermore, an auxiliary plug 19 is fixedly connected to the end face of the slide plate 17 away from the heating element 2, and an auxiliary plug 20 is fixedly connected to the fitting plug 14 to be inserted into the auxiliary plug 19. Through the insertion and engagement of the auxiliary plug 19 and the auxiliary plug 20, the slide plate 17 and the fitting plug 14 remain stable, improving the stability of the electrical connection between the electrical connector 10 and the electrical plug 9. The slide plate 17 and the electrical connector 10 are fixedly connected by an insulating plate 21. The setting of the insulating plate 21 improves the stability of the electrical connector 10 during use.

[0050] A floor includes the aforementioned electrically heated floor panel. The floor also includes a lower substrate 24, a lower insulating plate 25, an upper insulating plate 26, and an upper substrate 27 arranged sequentially from bottom to top. The electrically heated substrate 1 is located between the lower insulating plate 25 and the upper insulating plate 26. The lower substrate 24, the lower insulating plate 25, the electrically heated substrate 1, the upper insulating plate 26, and the upper substrate 27 are assembled by adhesive bonding to form a multi-layered floor. A warning light 13 is fixedly installed on the upper surface of the upper substrate 27 to facilitate the visibility of the warning light 13 by personnel.

[0051] A method for installing flooring, using the aforementioned flooring, includes the following steps:

[0052] A. Assemble the lower substrate 24, lower insulating plate 25, electric heating substrate 1, upper insulating plate 26 and upper substrate 27 to form a multi-layer floor structure.

[0053] B, Assemble adjacent floorboards so that the electrical plug 9 of the floorboard is inserted into the electrical connector 10 of the adjacent floorboard, thereby assembling multiple floorboards to form an electrically connected floorboard assembly.

[0054] C. Connect the electrical plug 9 located on the floor at the first end of the floor assembly to an external power source, and connect the electrical connector 10 located on the floor at the last end of the floor assembly to an external power source.

[0055] Working principle: The electrical plug 9 of the heating element 2 on one heating substrate 1 is extended to the electrical connector 10 of the heating element 2 on the adjacent heating substrate 1. The electrical plug 9 and the electrical connector 10 are matched to make the heating elements 2 on the adjacent heating substrate 1 electrically connected. The heat emitted by the heating element 2 is transferred to the evaporating liquid through the heat exchange box 3, and then transferred to the heating plate 4 through the evaporating liquid, so that the heating plate 4 arranged at the edge of the heating substrate 1 heats the edge of the heating substrate 1.

[0056] When heat cannot be dissipated smoothly on the floor, the heat in the evaporating liquid cannot be dissipated in time and cannot continuously receive heat from the heating element 2. This causes the evaporating liquid to vaporize in large quantities due to heat accumulation. The air pressure in the heat exchange chamber increases and pushes the piston push plate 5 towards the touch switch 8, causing the touch rod 7 to press against the touch switch 8. The touch switch 8 sends a signal to the electromagnet 12 and the alarm light 13. The alarm light 13 emits a light alarm. The electromagnet 12 is energized and uses magnetic force to pull the electrical connector 10 away from the electrical plug 9 on the adjacent heating plate 1. This disconnects the electrical connector 10 from the electrical plug 9 on the adjacent heating plate 1, thereby de-energizing the heating element 2 and stopping it from heating.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric heating floor panel, comprising a heating element (2) laid on an electric heating substrate (1), wherein each end of the heating element (2) is electrically connected to an electrical plug (9) and an electrical connector (10), characterized in that: The heating element (2) is thermally connected to several heat exchange boxes (3) that store evaporating liquid inside. The heating plates (4) arranged at the edge of the electric heating substrate (1) extend into the evaporating liquid inserted into the adjacent heat exchange box (3). A piston push plate (5) is slidably arranged in at least one heat exchange box (3). The piston push plate (5) divides the heat exchange box (3) into a heat exchange chamber that stores evaporating liquid and an empty chamber that does not store evaporating liquid. An elastic connecting block (6) is fixedly connected between the piston push plate (5) and the inner wall of the heat exchange box (3). A touch rod (7) extending away from the heat exchange chamber is fixedly connected to the piston push plate (5). The touch rod (7) slides out of the heat exchange box (3). A touch switch (8) that presses against the touch rod (7) is provided on the electric heating substrate (1). The sliding electrical connector (10) is provided with an elastic push block (11) that pushes it to be electrically connected to the electrical plug (9) on the adjacent heating substrate (1), and the electrical connector (10) is magnetically connected to an electromagnet (12) that pulls it to be electrically disconnected from the electrical plug (9) on the adjacent heating substrate (1). When the pressure switch (8) is pressed, it causes the electromagnet (12) located on the same heating substrate (1) to work and causes the warning light (13) on the floor where the adjacent heating substrate (1) is located to light up.

2. The electrically heated floor panel according to claim 1, characterized in that: The heating element (2) is fixedly connected to a fitting rod (14) and a fitting tube (15) at both ends. The plug (9) is fixedly installed on the end of the fitting rod (14) away from the heating element (2) and is electrically connected to the heating element (2) through a wire. The fitting tube (15) is fixedly provided with a guide rod (16) parallel to its axis. The guide rod (16) is slidably fitted with a slide plate (17) outside. The connector (10) is fixedly connected to the end face of the slide plate (17) away from the heating element (2) and is electrically connected to the heating element (2) through a wire. The elastic push block (11) is fixedly connected between the slide plate (17) and the inner wall of the fitting tube (15). The electromagnet (12) is fixedly connected to the inner wall of the fitting tube (15) near the heating element (2). The end face of the slide plate (17) near the electromagnet (12) is provided with an iron plate (18) that is magnetically attracted to the electromagnet (12).

3. The electrically heated floor panel according to claim 2, characterized in that: The fitting rod (14) has a guide slot (141) at the end away from the heating element (2) for the guide rod (16) to slide into.

4. The electrically heated floor panel according to claim 2, characterized in that: An auxiliary plug (19) is fixedly connected to the end face of the slide plate (17) away from the heating element (2), and an auxiliary plug (20) is fixedly connected to the fitting rod (14) to be inserted into the auxiliary plug (19).

5. The electrically heated floor panel according to claim 2, characterized in that: The sliding plate (17) and the electrical connector (10) are fixedly connected by an insulating plate (21).

6. The electrically heated floor panel according to claim 1, characterized in that: The heat exchange box (3) and the heating element (2) are fixedly connected by thermally conductive silicone grease (22).

7. The electrically heated floor panel according to claim 1, characterized in that: The heating element (2) is arranged in a zigzag pattern on the electric heating substrate (1), and multiple heat exchange boxes (3) are evenly distributed between adjacent plates of the heating element (2). The heat exchange box (3) that is not adjacent to the heating plate (4) at the edge of the electric heating substrate (1) has a heating plate (4) extending outward toward the adjacent heat exchange box (3).

8. The electrically heated floor panel according to claim 1, characterized in that: The heat exchange box (3) is fixedly connected to a limiting block (23) on its outer wall, and the electric heating substrate (1) is provided with a limiting slot for the limiting block (23) to fit and be inserted.

9. A flooring comprising the electrically heated flooring panel as described in any one of claims 1-8, characterized in that: The floor also includes a lower base plate (24), a lower insulating plate (25), an upper insulating plate (26) and an upper base plate (27) arranged sequentially from bottom to top, and the electric heating base plate (1) is located between the lower insulating plate (25) and the upper insulating plate (26), and the warning light (13) is fixedly installed on the upper surface of the upper base plate (27).

10. A method for installing flooring, using the flooring described in claim 9, characterized in that, Includes the following steps: A. Assemble the lower substrate (24), lower insulating plate (25), electric heating substrate (1), upper insulating plate (26) and upper substrate (27) to form a multi-layer floor structure; B, assemble adjacent floorboards so that the electrical plug (9) of the floorboard is inserted into the electrical connector (10) of the adjacent floorboard, thereby assembling multiple floorboards to form an electrically connected floorboard assembly; C. Connect the electrical plug (9) located on the floor at the first end of the floor assembly to an external power source, and connect the electrical connector (10) located on the floor at the last end of the floor assembly to an external power source.

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