Distributed electric heating system based on 485 bus communication

Abstract

The application provides a distributed electric heating system based on 485 bus communication, which comprises a central controller and a heating plate; the central controller is internally provided with a central MCU, a signal input end of the central MCU is connected with an external temperature sensor and an input button, and a power supply end of the central MCU is connected with a main contactor or a relay; a bidirectional main 485 communication interface of the central MCU; the heating plate comprises a mounting plate; a heating assembly is mounted on an upper portion of an inner cavity of the mounting plate, a sealing assembly is mounted on the upper portion of the mounting plate, a wiring groove is arranged on one side of the mounting plate, a connecting cavity is arranged on one end of the inner cavity of the mounting plate and away from the wiring groove, and a connecting assembly is mounted on one end of an inner cavity of the connecting cavity. The application realizes intelligent control and management of the electric heating equipment; the 485 bus communication technology, real-time monitoring and intelligent control, energy-saving management strategy, fault diagnosis and alarm function and automatic address acquisition function are used, and the reliability, efficiency and intelligent degree of the system are improved.

Description

Technical Field

[0001] This invention relates to the field of heating technology, and more specifically to a distributed electric heating system based on 485 bus communication. Background Technology

[0002] Underfloor heating, short for radiant floor heating, uses the entire floor as a radiator. A heat transfer medium within the floor's radiant layer evenly heats the entire surface. The heat is then conducted upwards from the floor's surface by the floor's heat storage capacity and the upward radiation of heat, thus achieving the purpose of heating. This creates a temperature gradient that gradually decreases from the feet to the head, providing a comfortable feeling of warm feet and a cool head.

[0003] Traditional underfloor heating systems have the following problems in practical applications: When underfloor heating is installed, a single water pipe is usually used. If the water pipe is damaged later, the entire water pipe needs to be replaced and repaired. This not only increases the maintenance cost, but also makes it inconvenient for later maintenance.

[0004] Although there are ways to install underfloor heating panels to solve the problems associated with single water pipes, the central controller has not yet found the best solution for controlling each underfloor heating panel and for assembling each panel. The control of each underfloor heating panel lacks intelligence, and the assembly method of the underfloor heating panels is limited. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a distributed electric heating system based on 485 bus communication, which solves the problems mentioned in the background section.

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

[0007] A distributed electric heating system based on 485 bus communication includes a central controller and heating panels; the central controller has a built-in central MCU, the signal input terminal of the central MCU is connected to an external temperature sensor and input buttons, and the power supply terminal of the central MCU is connected to a main contactor or relay; the central MCU has a bidirectional connection to the main 485 communication interface.

[0008] The heating panels are arranged in a rectangular array. Each heating panel has a built-in secondary controller. The input end of the secondary controller is connected to the temperature probe inside the panel. The bidirectional communication of the secondary controller is connected to the secondary 485 communication interface. The secondary 485 communication interfaces of each heating panel are connected in series. The output end of the secondary controller is connected to a thyristor electronic switch. The wire of the thyristor electronic switch is connected to the heating wire. The power supply end of the secondary controller is connected to the main contactor or relay.

[0009] The heating panel includes a mounting plate; a heating component is installed on the upper part of the inner cavity of the mounting plate, a sealing component is installed on the upper part of the mounting plate, a wiring groove is provided on one side of the mounting plate, a connecting cavity is provided at the end of the inner cavity of the mounting plate away from the wiring groove, a connecting component is installed at one end of the inner cavity of the connecting cavity, positioning holes are provided on both sides of the mounting plate, locking holes are provided at both ends of one side of the mounting plate, and fixing holes are provided around the top surface of the mounting plate; the connecting component includes a first plug-in component, a second plug-in component, and an adjusting component, one end of the first plug-in component slides in one of the positioning holes, the other end of the first plug-in component is installed with the second plug-in component, one end of the second plug-in component slides in one of the locking holes, the other end of the second plug-in component is installed with the adjusting component, one end of the adjusting component slides in the inner cavity of the second plug-in component and is in contact with one end of the first plug-in component;

[0010] Furthermore, the working method between the central controller and the heating panel is as follows:

[0011] S1. When the power is turned on, the main contactor or relay supplies power to the central controller and each heating panel: the central controller and each heating panel perform self-test and initialization operations.

[0012] S2. When the system starts, the central controller sends a signal to each heating element via the 485 bus. After receiving the signal, the heating element's built-in address acquisition module automatically obtains the address of its current position and transmits the address information to the central controller.

[0013] S3. After receiving the address information of each heating element, the central controller starts up and enters the working state.

[0014] S4. Users set the temperature and configure parameters through the central controller;

[0015] S5, Soft start for distributed heating radiators:

[0016] The central controller sends start commands to each heating element via a 485 bus based on the temperature and parameters set by the user; the heating elements start working after receiving the commands.

[0017] The temperature probe inside the panel monitors the temperature data of the heating element in real time and transmits the data to the central controller via the 485 bus. The central controller processes and analyzes the temperature data after receiving it.

[0018] The central controller uses PID control based on the temperature data of the heating radiators to adjust the working power of the heating radiators so that they gradually approach the set temperature.

[0019] When a heating element reaches the set temperature, the central controller sends a command to put that heating element into standby mode and stop heating. At the same time, if the temperature of a heating element reaches the temperature limit protection temperature, the central controller will immediately send a stop command to shut down that heating element.

[0020] S6. Soft shutdown of distributed heating radiators:

[0021] The central controller sends a shutdown command to each heating element, gradually shutting down each heating element and eventually shutting down the entire system.

[0022] Furthermore, the adjusting component includes a first straight plate and a square sleeve. The first straight plate is fixedly connected to the bottom surface of the inner cavity of the connecting cavity. A first damping rod is fixedly connected to one side of the first straight plate. A first square piece is fixedly connected to one end of the first damping rod. A first square piece and a wedge are fixedly connected to one side of the square sleeve. A square rod is slidably connected to the middle of the inner cavity of the square sleeve. A fixing bolt is threaded to the top surface of the square sleeve. The bottom surface of the fixing bolt is in contact with the top surface of the square rod. A first slot and a second slot are respectively provided on the top surface of the square rod.

[0023] Furthermore, the second insertion component includes a second straight plate and a second damping rod. The bottom surface of the connecting cavity is fixedly connected to the second straight plate, and one side of the second straight plate is fixedly connected to a third damping rod. One end of the third damping rod is fixedly connected to a connecting piece, and one side of the connecting piece is fixedly connected to a displacement sleeve. The outer surface of the square rod slides within the displacement sleeve, and one side of the displacement sleeve is fixedly connected to a trapezoidal block. One side of the connecting cavity wall is fixedly connected to the second damping rod, and one end of the second damping rod is fixedly connected to a displacement piece. One side of the displacement piece is fixedly connected to a connecting rod, and one end of the connecting rod slides within one of the locking holes. One end of the connecting rod has an inclined surface, and this inclined surface contacts the inclined surface of the trapezoidal block.

[0024] Furthermore, the second insertion component also includes an extension block. An extension block is fixedly connected to one side of the displacement sleeve. A lifting screw is threadedly connected to the inside of the extension block. An anti-rotation plate is rotatably connected to the bottom end of the lifting screw. One side of the anti-rotation plate is in contact with one side of the displacement sleeve. An insertion plate is fixedly connected to the bottom surface of the anti-rotation plate. The insertion plate is respectively inserted into the inner cavity of the first slot or the second slot.

[0025] Furthermore, the first insertion component includes a fourth damping rod, which is fixedly connected to one side of the cavity wall of the connecting cavity. A rectangular plate is fixedly connected to one end of the fourth damping rod, and a positioning rod is fixedly connected to one side of the rectangular plate. One end of the positioning rod slides within one of the positioning holes, and the other end of the positioning rod is in contact with one end of the rectangular rod.

[0026] Furthermore, a T-shaped groove is provided at one end of the top surface of the mounting plate, and the inner cavity of the T-shaped groove is connected to the inner cavity of the wiring groove. The top surface of the mounting plate is provided with a pipe routing groove and a probe groove, and one end of the pipe routing groove and the probe groove are respectively connected to the inner cavity of the T-shaped groove. A secondary controller is fixedly connected to the inner cavity of the T-shaped groove. The heating wire is installed in the pipe routing groove. One side of the controller is connected to an internal temperature probe via a communication line. The communication line and the internal temperature probe are respectively installed in the probe groove.

[0027] Furthermore, the sealing assembly includes a sealing plate, which is mounted on top of the mounting plate. Fixing rods are fixedly connected to the four sides of the bottom surface of the sealing plate. One end of each fixing rod is inserted into the inner cavity of a fixing hole. A locking component is installed in the middle of one end of the bottom surface of the sealing plate. An adjustment port is provided on the top surface of the mounting plate, located above the connecting cavity, and the adjustment port communicates with the inner cavity of the connecting cavity. The locking component is inserted into the inner cavity of the connecting cavity through the adjustment port and connected to the adjustment component.

[0028] Furthermore, the locking component also includes a locking rod and an unlocking hole. The locking rod is fixedly connected to the bottom surface of the sealing plate. The lower part of one side of the locking rod is provided with an arc surface, which contacts the inclined block. The lower part of one side of the locking rod is provided with a locking groove. The locking rod is inserted into the inclined block through the locking groove and locked in place. A sliding groove is provided on one side of the locking rod. One end of the sliding groove extends to the lower part of the locking groove. The top surface of the sealing plate is provided with an unlocking hole. An unlocking rod is slidably connected in the unlocking hole, and one end of the unlocking rod extends into the sliding groove to slide. A retaining plate is fixedly connected to one side of the unlocking rod. A fourth damping rod is fixedly connected to the top surface of the retaining plate in the area between the top surface and the bottom surface of the sealing plate.

[0029] Furthermore, the mounting plate uses a polystyrene board insulation layer, a rock wool board is fixedly connected to the bottom surface of the mounting plate, and a waterproof membrane is fixedly connected to the bottom surface of the rock wool board. The waterproof membrane is a modified bitumen waterproof membrane.

[0030] This invention provides a distributed electric heating system based on 485 bus communication. Compared with existing technologies, it has the following advantages:

[0031] 1. Through centralized control, real-time monitoring, energy-saving management, fault diagnosis, and automatic address acquisition, this system achieves intelligent control and management of electric heating equipment. Innovative features such as the use of 485 bus communication technology, real-time monitoring and intelligent control, energy-saving management strategies, fault diagnosis and alarm functions, and automatic address acquisition improve the system's reliability, efficiency, and intelligence.

[0032] 2. Through the cooperation of the sealing plate, locking component and fixing rod in the sealing assembly, the sealing plate can be fixed on the mounting plate, thereby sealing the upper part of the mounting plate. This allows personnel to walk on the upper part while protecting the heating wire and also enhances the aesthetics. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of the layout structure of the distributed electric heating system of the present invention is shown;

[0035] Figure 2 A schematic diagram of the assembly structure of the heating element of the present invention is shown;

[0036] Figure 3 This diagram shows another perspective of the assembly structure of the heating element of the present invention;

[0037] Figure 4 A schematic diagram of the mounting plate and heating assembly structure of the present invention is shown;

[0038] Figure 5 A schematic diagram of the mounting plate structure of the present invention is shown;

[0039] Figure 6 A schematic diagram of the sealing assembly structure of the present invention is shown;

[0040] Figure 7 A partially enlarged structural schematic diagram of the sealing assembly of the present invention is shown;

[0041] Figure 8 A partial cross-sectional view of the mounting plate of the present invention is shown;

[0042] Figure 9 The present invention is shown. Figure 8 Enlarged structural diagram of region A in the middle;

[0043] Figure 10 A schematic diagram of the connection component structure of the present invention is shown;

[0044] Figure 11 This diagram shows another view of the structural structure of the connection component of the present invention;

[0045] Figure 12 The present invention is shown. Figure 11 Enlarged structural diagram of region B in the middle;

[0046] The diagram shows: 1. Mounting plate; 1-1. T-slot; 1-2. Pipe groove; 1-3. Probe groove; 1-4. Adjustment port; 21. Secondary controller; 22. Heating wire; 23. Communication line; 24. In-plate temperature probe; 3. Sealing assembly; 31. Sealing plate; 32. Fixing rod; 33. Locking component; 331. Locking rod; 332. Unlocking hole; 333. Locking groove; 334. Sliding groove; 335. Unlocking rod; 336. Holding piece; 337. Fourth damping rod; 4. Wiring groove; 5. Connecting cavity; 6. Connecting assembly; 61. First insertion part; 611. Fourth damping rod; 612. Rectangular piece; 613. Positioning rod; 62. Second insertion part. Components; 621, Second Straight Plate; 622, Second Damping Rod; 623, Third Damping Rod; 624, Connecting Plate; 625, Displacement Sleeve; 626, Trapezoidal Block; 627, Displacement Plate; 628, Connecting Rod; 629, Extension Block; 6210, Lifting Screw; 6211, Anti-rotation Plate; 6212, Insert Plate; 63, Adjusting Component; 631, First Straight Plate; 632, Square Sleeve; 633, First Damping Rod; 634, First Square Plate; 635, Inclined Block; 636, Square Rod; 637, Fixing Bolt; 638, First Slot; 639, Second Slot; 7, Positioning Hole; 8, Locking Hole; 9, Fixing Hole; 10, Rock Wool Board; 11, Waterproof Membrane. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0048] Example 1

[0049] To address the technical problems in the background section, the following distributed electric heating system based on 485 bus communication is presented:

[0050] Combination Figure 1 As shown, the distributed electric heating system based on 485 bus communication provided by this invention:

[0051] Includes a central controller and heating panels; the central controller has a built-in central MCU, the signal input terminal of the central MCU is connected to an external temperature sensor and input buttons, and the power supply terminal of the central MCU is connected to a main contactor or relay; the central MCU has a bidirectional connection to the main 485 communication interface;

[0052] The heating panels are arranged in a rectangular array. Each heating panel has a built-in secondary controller. The input end of the secondary controller is connected to the temperature probe inside the panel. The bidirectional communication of the secondary controller is connected to the secondary 485 communication interface. The secondary 485 communication interfaces of each heating panel are connected in series. The output end of the secondary controller is connected to a thyristor electronic switch. The wire of the thyristor electronic switch is connected to the heating wire. The power supply end of the secondary controller is connected to the main contactor or relay.

[0053] The working method between the central controller and the heating panel is as follows:

[0054] S1. When the power is turned on, the main contactor or relay supplies power to the central controller and each heating panel: the central controller and each heating panel perform self-test and initialization operations.

[0055] S2. When the system starts, the central controller sends a signal to each heating element via the 485 bus. After receiving the signal, the heating element's built-in address acquisition module automatically obtains the address of its current position and transmits the address information to the central controller.

[0056] S3. After receiving the address information of each heating element, the central controller starts up and enters the working state.

[0057] S4. Users set the temperature and configure parameters through the central controller;

[0058] S5, Soft start for distributed heating radiators:

[0059] The central controller sends start commands to each heating element via a 485 bus based on the temperature and parameters set by the user; the heating elements start working after receiving the commands.

[0060] The temperature probe inside the panel monitors the temperature data of the heating element in real time and transmits the data to the central controller via the 485 bus. The central controller processes and analyzes the temperature data after receiving it.

[0061] The central controller uses PID control based on the temperature data of the heating radiators to adjust the working power of the heating radiators so that they gradually approach the set temperature.

[0062] When a heating element reaches the set temperature, the central controller sends a command to put that heating element into standby mode and stop heating. At the same time, if the temperature of a heating element reaches the temperature limit protection temperature, the central controller will immediately send a stop command to shut down that heating element.

[0063] The thermostat transmits its status information to the central controller via a 485 bus. The central controller monitors the equipment status in real time, and if it detects any abnormalities, such as thermostat malfunction or heating radiator failure, it will perform fault diagnosis and provide corresponding alarm information.

[0064] S6. Soft shutdown of distributed heating radiators:

[0065] The central controller sends a shutdown command to each heating element, gradually shutting down each heating element and eventually shutting down the entire system.

[0066] After the heating radiators are turned off, the system will still start working:

[0067] Troubleshooting and Maintenance: During system operation, if a fault or abnormal situation occurs, the central controller will issue corresponding alarm information. Users can diagnose the fault based on the alarm information and take appropriate maintenance measures to repair or replace the faulty equipment. The central controller can also record and store fault information for subsequent system maintenance and improvement.

[0068] System Optimization and Improvement: Through data analysis and performance evaluation of the system operation process, users can optimize and improve the system according to actual conditions. For example, based on actual user needs and temperature changes, temperature settings and heating power parameters can be adjusted to improve system energy efficiency and temperature control accuracy. Users can also optimize the system's operating mode based on feedback information to improve system comfort and user experience.

[0069] The above technical solution has the following technical effects:

[0070] 1. Using 485 bus communication technology: Employing the 485 bus as the communication method between devices offers advantages such as strong anti-interference capability and high reliability. Compared to traditional serial communication methods, using the 485 bus enables long-distance transmission and multi-device connection, meeting the requirements of distributed electric heating systems.

[0071] 2. Real-time monitoring and intelligent control: The temperature data of the heating radiators is monitored in real time by the thermostat and transmitted to the central controller, enabling real-time monitoring and intelligent control of the system. The central controller can perform PID control based on the temperature data to precisely adjust the working power of the heating radiators, improving the system's temperature control accuracy and comfort.

[0072] 3. Energy-saving management strategy: The central controller intelligently adjusts the operating status of equipment based on the real-time status of the entire system and user needs to achieve energy-saving management. For example, when there is no activity or the outdoor temperature is high, the operating power of the equipment is automatically reduced to reduce energy consumption and achieve energy-saving effects.

[0073] 4. Fault Diagnosis and Alarm Functions: The temperature controller transmits equipment status information to the central controller via a 485 bus, enabling fault diagnosis and alarm functions. The central controller can monitor the equipment's operating status in real time, diagnose abnormal situations, and provide corresponding alarm information, promptly identifying and resolving equipment faults, thus improving system reliability and stability.

[0074] 5. Automatic Address Acquisition Function: Distributed heating radiators have the ability to automatically acquire their addresses. They communicate with the central controller via a 485 bus to obtain the location address of the heating radiators. This function provides more accurate positioning information, enabling the central controller to intelligently control the heating radiators based on their location, achieving more precise temperature regulation and comfort management.

[0075] 6. Soft Start and Soft Shutdown Functions: Soft start and soft shutdown functions reduce current surges during startup and shutdown by gradually supplying power to and reducing power consumption of the distributed heating radiators. This reduces stress on the power supply and equipment, helping to extend equipment lifespan. Soft start and soft shutdown also reduce stress and vibration during equipment startup and shutdown, lowering the risk of failure and improving system reliability and stability. Furthermore, soft start and soft shutdown can control the startup and shutdown speed of the equipment, avoiding unnecessary energy waste and achieving energy conservation and efficient utilization.

[0076] 7. Independent Temperature Sensing Module for Heating Radiators: The use of independent temperature sensing modules for heating radiators can improve system energy efficiency and comfort. By monitoring the temperature of the heating radiators in real time, the system can adjust the heating power according to actual needs, avoiding energy waste and providing a comfortable indoor temperature environment. Independent temperature sensing modules can also be used for fault detection and protection. If the temperature sensing module detects abnormal temperature or a fault, the system can issue corresponding alarms or stop the operation of the heating radiators to prevent equipment damage or safety hazards.

[0077] 8. Easy to install: The heating radiators are installed in a modular fashion, and the overall power is not affected by the temperature control. The final power is achieved by assembling the total power and selecting the capacity of the central contactor or relay.

[0078] Example 2

[0079] like Figures 2-12 As shown, based on the above embodiments, this embodiment further provides the following:

[0080] When laying heating panels, it's best to use a single water pipe. If the pipe breaks later, the entire pipe needs to be replaced, increasing maintenance costs and making repairs more difficult. Furthermore, the initial installation requires leveling the ground, creating grooves, and waterproofing, further increasing both overall installation costs and labor requirements. To address these issues, the following solution is proposed:

[0081] The system includes a mounting plate 1; a heating component 2 is mounted on the upper part of the inner cavity of the mounting plate 1, a sealing component 3 is mounted on the upper part of the mounting plate 1, a wiring groove 4 is provided on one side of the mounting plate 1, a connecting cavity 5 is provided at the end of the inner cavity of the mounting plate 1 away from the wiring groove 4, a connecting component 6 is installed at one end of the inner cavity of the connecting cavity 5, positioning holes 7 are provided on both sides of the mounting plate 1, locking holes 8 are provided at both ends of one side of the mounting plate 1, and fixing holes 9 are provided around the top surface of the mounting plate 1; the connecting component 6 consists of a first insertion component 61, a second insertion component 62, and an adjusting component 63. One end of the first insertion component 61 slides within one of the positioning holes 7, and the other end of the first insertion component 61 is fitted with the second insertion component 62. One end of the second insertion component 62 slides within one of the locking holes 8, and the other end of the second insertion component 63 is fitted with... The device is equipped with an adjusting component 63. One end of the adjusting component 63 slides within the inner cavity of the second plug-in component 62 and is in contact with one end of the first plug-in component 61. The adjusting component 63 includes a first straight plate 631 and a square sleeve 632. The first straight plate 631 is fixedly connected to the bottom surface of the inner cavity of the connecting cavity 5. A first damping rod 633 is fixedly connected to one side of the first straight plate 631. A first square piece 634 is fixedly connected to one end of the first damping rod 633. A first square piece 634 and a wedge block 635 are fixedly connected to one side of the square sleeve 632. A square rod 636 is slidably connected to the middle of the inner cavity of the square sleeve 632. A fixing bolt 637 is threadedly connected to the top surface of the square sleeve 632. The bottom surface of the fixing bolt 637 is in contact with the top surface of the square rod 636. A first slot 638 and a second slot 639 are respectively provided on the top surface of the square rod 636.

[0082] The above structure can achieve the following effects:

[0083] 1. Through the cooperation of the sealing plate 31, locking component 33 and fixing rod 32 in the sealing assembly 3, the sealing plate 31 can be fixed on the mounting plate 1, thereby sealing the upper part of the mounting plate 1. This facilitates personnel walking on the upper part while protecting the heating wire 22, and also enhances the aesthetics.

[0084] 2. The connecting component 6 enables the symmetrical or side-by-side installation of multiple mounting plates 1 to form a large-area assembly, facilitating subsequent heating. During assembly, the mounting plates 1 will exist in the following four states: First, when two sets of mounting plates 1 are installed side-by-side, the first insertion component 61 in the connecting component 6, in conjunction with the adjusting component 63, connects the two side-by-side mounting plates 1. Second, when two sets of mounting plates 1 are installed symmetrically, the adjusting component 63 in the connecting component 6, in conjunction with the second insertion component 62... By cooperating with each other, the two symmetrically installed mounting plates 1 can be connected. Thirdly, when the mounting plates 1 are installed symmetrically and side by side, the first plug-in component 61, the second plug-in component 62, and the adjusting component 63 in the connecting assembly 6 can be used to achieve symmetrical and side-by-side installation of the mounting plates 1. Fourthly, when there are no other installations around the mounting plate 1, the adjusting component 63 can be used to prevent the second plug-in component 62 and the first plug-in component 61 in the mounting plate 1 from protruding from the mounting plate 1.

[0085] In order for the second plug-in component 62 to connect the two symmetrically mounted mounting plates 1, this embodiment provides the following technical solution:

[0086] In this embodiment, the second plug-in component 62 includes a second straight plate 621 and a second damping rod 622; the bottom surface of the inner cavity of the connecting cavity 5 is fixedly connected to the second straight plate 621, a third damping rod 623 is fixedly connected to one side of the second straight plate 621, a connecting piece 624 is fixedly connected to one end of the third damping rod 623, a displacement sleeve 625 is fixedly connected to one side of the connecting piece 624, the outer surface of the square rod 636 slides within the displacement sleeve 625, a trapezoidal block 626 is fixedly connected to one side of the displacement sleeve 625, the second damping rod 622 is fixedly connected to one side of the inner cavity wall of the connecting cavity 5, a displacement piece 627 is fixedly connected to one end of the second damping rod 622, a connecting rod 628 is fixedly connected to one side of the displacement piece 627, one end of the connecting rod 628 slides within one of the locking holes 8, and one end of the connecting rod 628 is provided with an inclined surface, which contacts the inclined surface of the trapezoidal block 626. The second insertion component 62 also includes an extension block 629. The extension block 629 is fixedly connected to one side of the displacement sleeve 625. The extension block 629 is internally threaded with a lifting screw 6210. The bottom end of the lifting screw 6210 is rotatably connected with an anti-rotation plate 6211. One side of the anti-rotation plate 6211 is in contact with one side of the displacement sleeve 625. The bottom surface of the anti-rotation plate 6211 is fixedly connected with an insertion plate 6212. The insertion plate 6212 is respectively inserted into the cavity of the first slot 638 or the second slot 639.

[0087] The connecting rod 628 and the locking hole 8 work together to connect the two symmetrically installed mounting plates 1 together. The lifting screw 6210, the anti-rotation plate 6211 and the insert plate 6212 work together to allow the connecting rod 628 to be inserted together when it is necessary to connect the two mounting plates 1 together, and to be stored in the connecting cavity 5 when it is not necessary, thus achieving two states.

[0088] In order to enable the first plug-in component 61 to connect and arrange the two mounting plates 1, this embodiment provides the following technical solution:

[0089] In this embodiment, the first plug-in component 61 includes a fourth damping rod 611. The fourth damping rod 611 is fixedly connected to one side of the inner wall of the connecting cavity 5. A rectangular piece 612 is fixedly connected to one end of the fourth damping rod 611. A positioning rod 613 is fixedly connected to one side of the rectangular piece 612. One end of the positioning rod 613 slides in one of the positioning holes 7, and the other end of the positioning rod 613 is in contact with one end of the square rod 636.

[0090] By using the positioning rod 613 in the first plug-in component 61 to cooperate with the positioning hole 7, the positioning rod 613 is inserted into the positioning hole 7 on another mounting plate 1, thereby realizing the parallel installation and connection of the two mounting plates 1.

[0091] To achieve room heating, this embodiment will provide the following technical solution:

[0092] A T-slot 1-1 is provided at one end of the top surface of the mounting plate. The inner cavity of the T-slot is connected to the inner cavity of the wiring groove. A pipe groove 1-2 and a probe groove 1-3 are respectively provided on the top surface of the mounting plate. One end of the pipe groove and the probe groove are respectively connected to the inner cavity of the T-slot. A secondary controller 21 is fixedly connected to the inner cavity of the T-slot. The heating wire 22 is installed in the pipe groove. One side of the secondary controller 21 is connected to an internal temperature probe 24 via a communication line 23. The communication line and the internal temperature probe are respectively installed in the probe groove.

[0093] Heating and heating of the room are achieved through heating wire 22. The heating temperature is controlled in real time through in-board temperature probe 24 to ensure that heating wire 22 is always kept at the specified temperature. Heating wire 22 is installed through pipe groove 1-2, and communication line 23 and in-board temperature probe 24 are installed through probe groove 1-3.

[0094] In order to enable the sealing assembly 3 to seal the upper part of the mounting plate 1, thereby protecting the heating assembly 2, and to allow the sealing assembly 3 to be integrated with the mounting plate 1, this embodiment provides the following technical solution:

[0095] The sealing assembly 3 includes a sealing plate 31, which is installed on the top of the mounting plate 1. Fixing rods 32 are fixedly connected to the four sides of the bottom surface of the sealing plate 31. One end of the fixing rod 32 is inserted into the inner cavity of the fixing hole 9. A locking component 33 is installed in the middle of one end of the bottom surface of the sealing plate 31. An adjustment port 1-4 is provided on the top surface of the mounting plate 1 and above the connecting cavity 5. The adjustment port 1-4 communicates with the inner cavity of the connecting cavity 5. The locking component 33 is inserted into the inner cavity of the connecting cavity 5 through the adjustment port 1-4 and is connected to the adjustment component 63. The locking component 33 also includes a locking rod 331 and an unlocking hole 332. The locking rod 331 is fixedly connected to the bottom surface of the sealing plate 31. The lower part of one side of the locking rod 331 is provided with an arc surface, which is in contact with the inclined block 635. The lower part of one side of the locking rod 331 is provided with a locking groove 333. The locking rod 331 is inserted into the inclined block 635 through the locking groove 333 and locked. The locking rod 331 is provided with a sliding groove 334 on one side. One end of the sliding groove 334 extends to the lower part of the locking groove 333. The top surface of the sealing plate 31 is provided with an unlocking hole 332. The unlocking rod 335 is slidably connected in the unlocking hole 332, and one end of the unlocking rod 335 extends into the sliding groove 334 and slides. A retaining piece 336 is fixedly connected to one side of the unlocking rod 335. A fourth damping rod 337 is fixedly connected to the top surface of the retaining piece 336 and the area between the top surface and the bottom surface of the sealing plate 31.

[0096] The sealing plate 31 is initially positioned by four sets of fixing rods 32, which facilitates the later installation. At the same time, the locking rod 331 is locked and fixed by the locking groove 333 on the locking rod 331 and the inclined block 635, thus preventing the sealing plate 31 from separating from the mounting plate 1.

[0097] When unlocking is required, the unlocking lever 335 presses the inclined block 635 to disengage it from the locking groove 333, making it easier for staff to disassemble the sealing plate 31. When disassembly is not required, the top surface of the unlocking lever 335 is flush with the bottom surface of the sealing plate 31 to enhance the aesthetics of the sealing plate 31.

[0098] In order to achieve the isolation of water vapor between the rock wool board 10 and the waterproof membrane 11, this embodiment provides the following technical solution:

[0099] In this embodiment, the mounting plate 1 is made of polystyrene board insulation layer, and rock wool board 10 is fixedly connected to the bottom surface of the mounting plate 1. Waterproof membrane 11 is fixedly connected to the bottom surface of rock wool board 10. Waterproof membrane 11 is made of modified bitumen waterproof membrane.

[0100] By combining the rock wool board 10, the waterproof membrane 11, and the polystyrene insulation layer, the water vapor seeping from the ground is isolated, preventing the heating component 2 inside the mounting plate 1 from being corroded due to ground dampness. At the same time, it also prevents the heating component 2 from being affected by water vapor.

[0101] Working principle and usage process of Example 2:

[0102] In use:

[0103] During installation, first, install the controller 21 in the T-slot 1-1, then fix the heating wire 22 in the pipe routing slot 1-2, and finally fix the communication cable 23 and the on-board temperature probe 24 in the probe slot 1-3. After installation, install the mounting plate 1 with the heating component 2 on the bottom surface. During installation, first install them side-by-side, then install them symmetrically. Symmetrical installation has two scenarios: first, the wiring slots 4 on the two mounting plates 1 are connected; second, the wiring slots 4 on the two mounting plates 1 are far apart, meaning the connecting components 6 in the mounting plates 1 are on the same side. This facilitates later connections. During connection, there are generally four states:

[0104] First installation method:

[0105] When the two sets of mounting plates are installed side by side, first, tighten the fixing bolt 637. As the fixing bolt 637 is rotated, it will no longer fix the square rod 636. At this time, the insert plate 6212 will no longer be inserted into the inner cavity of the first slot 638 and the second slot 639. Then, the square rod 636 can be moved, allowing it to slide within the square sleeve 632 and simultaneously within the displacement sleeve 625. When one end of the square rod 636 contacts one end of the positioning rod 613, the fixing bolt 637 can be tightened. As the fixing bolt 637 is tightened, the square rod 636 will be fixed again within the square sleeve 632. After fixing, the work... The operator can then place the sealing plate 31 on the mounting plate 1, so that the fixing rod 32 at the bottom of the sealing plate 31 is inserted into the fixing hole 9. At the same time, the lower part of the locking rod 331 will also press the inclined block 635, so that the inclined block 635 will move the square sleeve 632 and the square rod 636. When the square rod 636 moves, it will move the positioning rod 613. When the positioning rod 613 moves, it will press the fourth damping rod 611. At the same time, the positioning rod 613 will slide out of the positioning hole 7 on the mounting plate 1 and insert into the positioning hole 7 on another mounting plate 1. This will connect the two parallel mounting plates 1 together and also achieve the sealing installation of one of the mounting plates 1.

[0106] Second installation method:

[0107] When the two mounting plates 1 are installed symmetrically, first, tighten the fixing bolts 637 and move the square rod 636 so that one end of the square rod 636 is away from the positioning rod 613. Then, move the first slot 638 on the square rod 636 to the lower part of the insert plate 6212. Then tighten the fixing bolts 637. After the bottom end of the fixing bolts 637 contacts the top surface of the square rod 636, it will be locked. After locking, tighten the lifting screw 6210. When the lifting screw 6210 is tightened, it will drive the anti-rotation plate 6211 and the insert plate 6212 to move downward, so that the insert plate 6212 is inserted into the first slot 638. After insertion, stop tightening the lifting screw 6210, and then move the lower part of the sealing plate 31. The fixing rod 32 is inserted into the fixing hole 9. At the same time, it will also drive the lower part of the locking rod 331 to press the inclined block 635, so that the inclined block 635 drives the square sleeve 632 and the square rod 636 to move. When the square rod 636 moves, it will drive the insert plate 6212 to move through the first slot 638. When the insert plate 6212 moves, it will drive the displacement sleeve 625 to move. When the displacement sleeve 625 moves, it will drive the trapezoidal block 626 to move. When the trapezoidal block 626 moves, it will press the connecting rod 628. When one end of the connecting rod 628 slides out of the locking hole 8, one end of the connecting rod 628 will be inserted into the locking hole 8 on another mounting plate 1, realizing the symmetrical installation of the two mounting plates 1.

[0108] The third installation method:

[0109] When the side plates of mounting plate 1 are installed side-by-side and symmetrically, first, tighten the fixing bolts 637. After the fixing bolts 637 are loosened, move the square rod 636 so that one end of the square rod 636 contacts one end of the positioning rod 613. When one end of the square rod 636 contacts one side of the positioning rod 613, the second slot 639 on the square rod 636 will be located at the lower part of the insert plate 6212. Then tighten the fixing bolts 637. After the square rod 636 is fixed, tighten the lifting screw 6210. When the lifting screw 6210 rotates, it will drive the insert plate 6212 to move downward and insert the insert plate 6212 into the wall. When the second slot 639 is inserted, the worker can place the sealing plate 31 on the mounting plate 1, so that the fixing rod 32 at the bottom of the sealing plate 31 is inserted into the fixing hole 9. At the same time, the lower part of the locking rod 331 will also press the inclined block 635, so that the inclined block 635 will move the square sleeve 632 and the square rod 636. When the square rod 636 moves, it will move the displacement sleeve 625 and the positioning rod 613 respectively. When the positioning rod 613 moves, it will press the connecting rod 628. At this time, the other two mounting plates 1 can be positioned and fixed by the connecting rod 628 and the positioning rod 613.

[0110] Fourth installation method:

[0111] When no other mounting plates 1 are installed on either side of mounting plate 1, the operator can then tighten the fixing bolts 637. As the fixing bolts 637 are loosened, the operator can then place the sealing plate 31 on top of the mounting plate 1, causing the fixing rod 32 at the bottom of the sealing plate 31 to insert into the fixing hole 9. Simultaneously, this will cause the lower part of the locking rod 331 to press against the inclined block 635, causing the inclined block 635 to move the square sleeve 632. However, the square sleeve 632 does not move the square rod. 636 moves downwards. As the locking rod 331 moves downwards, the locking groove 333 on one side of the locking rod 331 moves to the side of the inclined block 635. At this time, the inclined block 635 will be slightly reset under the action of the first damping rod 633. After slight reset, it will be inserted into the locking groove 333 and lock the locking rod 331 to prevent the sealing plate 31 from being removed from the mounting plate 1 by personnel. At the same time, it can also cooperate with the connecting component 6 to connect and fix other mounting plates 1 under different circumstances.

[0112] When the sealing plate 31 needs to be disassembled later, the worker first uses a tool to press the unlocking rod 335. As the unlocking rod 335 slides downward in the sliding groove 334, it slides into the locking groove 333 and squeezes out the inclined block 635. Once the inclined block 635 is separated from the locking groove 333, the worker can then lift the sealing plate 31 to remove it. With the removal of the sealing plate 31, the locking rod 331 no longer squeezes the connecting component 6, allowing the connecting component 6 to reset. After resetting, the mounting plate 1 is no longer connected and fixed to the surrounding mounting plates 1, facilitating future maintenance. Furthermore, the independent installation design facilitates installation, making the overall installation flexible and fast, eliminating the need for extensive ground trenching and waterproofing measures.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0114] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A distributed electric heating system based on 485 bus communication, characterized in that: The central controller is connected with the heating plate through the main 485 communication interface, and the heating plate is connected with the central controller through the vice 485 communication interface. The heating plate is connected with the central controller through the main 485 communication interface, and the heating plate is connected with the central controller through the vice 485 communication interface. The heating plate comprises a mounting plate, a heating assembly is mounted on the upper portion of the inner cavity of the mounting plate, a sealing assembly is mounted on the upper portion of the mounting plate, a wiring groove is arranged on one side of the mounting plate, a connecting cavity is arranged on one end of the inner cavity of the mounting plate and away from the wiring groove, a connecting assembly is mounted on one end of the inner cavity of the connecting cavity, positioning holes are arranged on both sides of the mounting plate, locking holes are arranged at both ends of one side of the mounting plate, and fixing holes are arranged around the top surface of the mounting plate.

2. The 485 bus communication based distributed electric heating system according to claim 1, wherein: The working method between the central controller and the heating plate is as follows: S1, the power is turned on, the main contactor or the relay supplies power to the central controller and each heating plate, and the central controller and each heating plate perform self-checking and initialization operation; S2, when the system starts, the central controller sends a signal to each heating plate through the 485 bus, the heating plate receives the signal, the built-in address acquisition module automatically acquires the address of the current position, and the address information is transmitted to the central controller; S3, after the central controller receives the address information of each heating plate, it starts and enters the working state; S4, the user sets the temperature and configures the parameters through the central controller; S5, the distributed heating plate is soft-started: The central controller sends a start instruction to each heating plate through the 485 bus according to the user-set temperature and parameters, and the heating plate starts to work after receiving the instruction; The in-plate temperature probe monitors the temperature data of the heating plate in real time, and transmits the data to the central controller through the 485 bus, and the central controller processes and analyzes the temperature data after receiving the temperature data; The central controller controls the PID according to the temperature data of the heating plate, adjusts the working power of the heating plate, and makes it gradually approach the set temperature; When a certain heating plate reaches the set temperature, the central controller sends an instruction to make the heating plate enter standby mode and stop heating operation; at the same time, if the temperature of a certain heating plate reaches the temperature limiting protection temperature, the central controller will immediately send a stop instruction to shut down the heating plate. S6, Soft shutdown of distributed heating radiators: The central controller sends a shutdown command to each heating element, gradually shutting down each heating element and eventually shutting down the entire system.

3. The 485 bus communication based distributed electric heating system as claimed in claim 1, wherein: The adjusting component includes a first straight plate and a square sleeve. The first straight plate is fixedly connected to the bottom surface of the inner cavity of the connecting cavity. A first damping rod is fixedly connected to one side of the first straight plate. A first square piece is fixedly connected to one end of the first damping rod. A first square piece and a wedge are fixedly connected to one side of the square sleeve. A square rod is slidably connected to the middle of the inner cavity of the square sleeve. A fixing bolt is threaded to the top surface of the square sleeve. The bottom surface of the fixing bolt is in contact with the top surface of the square rod. A first slot and a second slot are respectively provided on the top surface of the square rod.

4. The 485 bus communication based distributed electric heating system according to claim 3, wherein: The second plug-in component includes a second straight plate and a second damping rod. The second straight plate is fixedly connected to the bottom surface of the inner cavity of the connecting cavity. A third damping rod is fixedly connected to one side of the second straight plate. A connecting piece is fixedly connected to one end of the third damping rod. A displacement sleeve is fixedly connected to one side of the connecting piece. The outer surface of the square rod slides within the displacement sleeve. A trapezoidal block is fixedly connected to one side of the displacement sleeve. The second damping rod is fixedly connected to one side of the inner cavity wall of the connecting cavity. A displacement piece is fixedly connected to one end of the second damping rod. A connecting rod is fixedly connected to one side of the displacement piece. One end of the connecting rod slides within one of the locking holes. One end of the connecting rod has an inclined surface, and the inclined surface contacts the inclined surface of the trapezoidal block.

5. The 485 bus communication based distributed electric heating system according to claim 4, wherein: The second insertion component also includes an extension block. An extension block is fixedly connected to one side of the displacement sleeve. A lifting screw is threadedly connected to the inside of the extension block. An anti-rotation plate is rotatably connected to the bottom end of the lifting screw. One side of the anti-rotation plate is in contact with one side of the displacement sleeve. An insertion plate is fixedly connected to the bottom surface of the anti-rotation plate. The insertion plate is respectively inserted into the inner cavity of the first slot or the second slot.

6. The 485 bus communication based distributed electric heating system according to claim 5, wherein: The first plug-in component includes a fourth damping rod. The fourth damping rod is fixedly connected to one side of the cavity wall of the connecting cavity. A rectangular plate is fixedly connected to one end of the fourth damping rod. A positioning rod is fixedly connected to one side of the rectangular plate. One end of the positioning rod slides in one of the positioning holes. The other end of the positioning rod is in contact with one end of the rectangular rod.

7. The 485 bus communication based distributed electric heating system as claimed in claim 6, wherein: A T-shaped groove is provided at one end of the top surface of the mounting plate. The inner cavity of the T-shaped groove is connected to the inner cavity of the wiring groove. The top surface of the mounting plate is provided with a pipe groove and a probe groove, and one end of the pipe groove and the probe groove are respectively connected to the inner cavity of the T-shaped groove. A secondary controller is fixedly connected to the inner cavity of the T-shaped groove. The heating wire is installed in the pipe groove. One side of the controller is connected to an internal temperature probe via a communication line. The communication line and the internal temperature probe are respectively installed in the probe groove.

8. The 485 bus communication based distributed electric heating system as claimed in claim 7, wherein: The sealing assembly comprises a sealing plate, the sealing plate is installed above the mounting plate, fixed rods are fixedly connected around the bottom surface of the sealing plate, one end of the fixed rod is inserted into the fixed hole inner cavity in a matched mode, a locking part is installed at the middle of one end of the bottom surface of the sealing plate, an adjusting port is arranged on the top surface of the mounting plate and located at the upper part of the connecting cavity, the adjusting port is communicated with the connecting cavity inner cavity, the locking part is inserted into the connecting cavity inner cavity through the adjusting port and connected with the adjusting part.

9. The 485 bus communication based distributed electric heating system as claimed in claim 8, wherein: The locking part further comprises a locking rod and an unlocking hole, the locking rod is fixedly connected with the bottom surface of the sealing plate, an arc surface is arranged on the lower part of one side of the locking rod, the arc surface is in contact with the inclined block, a locking groove is arranged on the lower part of one side of the locking rod, the locking rod is inserted into the inclined block through the locking groove and locked in a matched mode, a sliding groove is arranged on one side of the locking rod, one end of the sliding groove extends to the lower part of the locking groove, the unlocking hole is arranged on the top surface of the sealing plate, an unlocking rod is slidably connected in the unlocking hole, one end of the unlocking rod extends into the sliding groove and slides, a retaining sheet is fixedly connected on one side of the unlocking rod, a fourth damping rod is fixedly connected on the top surface of the retaining sheet and located between the bottom surface of the sealing plate.

10. The 485 bus communication based distributed electric heating system as claimed in claim 1, wherein: The mounting plate adopts a polyphenyl plate heat insulation layer, a rock wool board is fixedly connected with the bottom surface of the mounting plate, a waterproof roll material is fixedly connected with the bottom surface of the rock wool board, the waterproof roll material adopts a modified asphalt waterproof roll material.

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