Phase change heat storage type electric heating structure integrating self-cleaning and protection and electric heater

Abstract

The invention discloses a phase change heat storage type electric heating structure integrating self-cleaning and protection and an electric heater. The electric heater comprises a main machine body, a protection assembly arranged on the periphery of the main machine body, a bottom plate connected to the bottom face of the main machine body, an activated carbon filter screen installed at the bottom of the main machine body, and a cleaning assembly connected to the bottom of the bottom plate in a sliding mode and used for cleaning the activated carbon filter screen. The brush is driven by the servo motor to reciprocate, accumulated dust on the activated carbon filter screen is automatically removed, the problems of air inlet efficiency reduction and heat exchange performance degradation caused by blockage of the activated carbon filter screen are fundamentally solved, continuous and efficient operation of the electric heater is guaranteed, and the service life is prolonged; and meanwhile, a multi-layer protection structure formed by the sound insulation layer, the protection layer and the light reflecting plate effectively reduces operation noise, prevents a user from being scalded, facilitates state observation, and remarkably improves the safety, comfort and convenience of use of the electric heater.

Description

Technical Field

[0001] This invention relates to the field of electric heater technology, and in particular to a phase change heat storage electric heater structure and electric heater that integrates self-cleaning and protection. Background Technology

[0002] Against the backdrop of global efforts to address climate change and national initiatives to promote energy conservation and emission reduction, clean, efficient, and intelligent distributed heating technologies have become a key research area in the building heating sector. While traditional centralized heating systems dominate winter heating, their inherent drawbacks are becoming increasingly apparent: first, they require huge initial investments, with high costs for pipeline construction and maintenance; second, their rigid operation mode provides continuous heating 24 / 7 regardless of user demand, resulting in significant energy waste; and third, their slow response time makes it difficult to quickly and accurately adjust water supply temperatures during periods of drastic temperature fluctuations before and after the heating season, failing to meet users' personalized and immediate needs for indoor thermal comfort. These problems not only increase societal energy costs but also contradict the current green and low-carbon development philosophy.

[0003] Against this backdrop, phase change thermal storage electric heaters, as a new type of heating equipment that utilizes off-peak electricity for energy storage at night and releases heat during the day, have attracted widespread attention due to their high efficiency, energy saving, and flexible operation. However, existing products suffer from a common technical defect during long-term operation: the activated carbon filter at the bottom air inlet is continuously exposed to the indoor environment. During operation, electrostatic adsorption and airflow scouring cause dust to accumulate and clog the mesh. This not only directly reduces airflow efficiency, leading to insufficient heat exchange in the heating element and a decrease in the heat storage capacity of the thermal storage brick, but also forces the fan to operate under high load, increasing energy consumption and noise. In severe cases, it can even trigger overheat protection or equipment failure, significantly shortening the product's lifespan and ultimately hindering the large-scale application and market promotion of phase change thermal storage technology. Summary of the Invention

[0004] This invention provides a phase change thermal storage electric heating structure and heater that integrates self-cleaning and protection, in order to solve the technical problem that the filter screen of the bottom air inlet of existing phase change thermal storage electric heaters is clogged by dust, resulting in reduced air intake efficiency, decreased heat exchange performance, and reduced equipment reliability.

[0005] In view of the above technical problems, the present invention provides a phase change heat storage electric heating structure integrating self-cleaning and protection, including a main body, a protective component disposed around the main body, a base plate connected to the bottom surface of the main body, an activated carbon filter installed at the bottom of the main body, and a cleaning component slidably connected to the bottom of the base plate for cleaning the activated carbon filter.

[0006] The cleaning assembly includes a brush holder, a brush mounted on the brush holder, a threaded rod threaded to a first end of the brush holder, a servo motor connected to the threaded rod, and a guide rod slidably connected to a second end of the brush holder. The servo motor is mounted on the side wall of the base plate.

[0007] The brush holder is driven by the servo motor to make the brush reciprocate below the activated carbon filter to remove the deposits on the bottom surface of the activated carbon filter.

[0008] Optionally, the integrated self-cleaning and protective phase change heat storage electric heating structure further includes a first fixing box and a second fixing box respectively fixedly installed on the two side walls of the base plate, the top end of the first end of the brush holder is connected to the bottom wall of the first fixing box, and the top end of the second end of the brush holder is connected to the bottom wall of the second fixing box; the brush holder is located below the activated carbon filter.

[0009] Optionally, a heat dissipation housing is installed at the end of the first fixing box, and the servo motor is housed inside the heat dissipation housing.

[0010] Optionally, the brush holder is provided with a groove for mounting the brush.

[0011] Optionally, the protective component includes a sound insulation layer wrapped around the periphery of the main body, a protective layer fixedly connected to the outer wall of the sound insulation layer, and a reflector applied to one side of the sound insulation layer.

[0012] Optionally, pull plates are fixedly connected to both sides of the protective layer.

[0013] Optionally, the host body further includes an air outlet on the top of the host body, several sets of heat dissipation fins on the side of the host body, a heating pipe inside the host body, several sets of heat storage bricks inside the host body, and a control board on the side wall of the host body.

[0014] Optionally, the integrated self-cleaning and protective phase change heat storage electric heating structure further includes a connecting plate fixedly connected to the top of the main unit and a baffle plate connected to the connecting plate.

[0015] Optionally, two sets of support blocks are fixedly connected to the bottom surface of the base plate, and two sets of rubber blocks are fixedly connected to the bottom surface of each set of support blocks.

[0016] The present invention also provides an electric heater, including the above-described phase change heat storage electric heating structure that integrates self-cleaning and protection.

[0017] In this invention, a servo motor drives a threaded rod and a guide rod to coordinate the brush holder and drive the brush to reciprocate, achieving automatic and efficient removal of dust from the bottom of the activated carbon filter. This fundamentally solves the technical problem of traditional electric heaters where air inlets are easily blocked, leading to reduced air intake efficiency, decreased heat exchange performance, and increased risk of heater malfunction. It ensures continuous and smooth airflow and stable operation of the heat storage and exchange system, significantly extending the maintenance-free period and overall lifespan of the heater. Simultaneously, the protective components integrated into the periphery of the main unit, through a multi-layered composite structure of sound insulation, protective layer, and reflector, effectively suppress operating noise, safely isolate high-temperature surfaces, and provide intuitive visibility of the heater's status, greatly improving safety, comfort, and convenience. Combined with optimized designs such as two fixing boxes, a heat dissipation chassis, and bottom shock-absorbing supports (support blocks and rubber blocks), the various components form an organic whole in terms of spatial layout and functional synergy. Within a limited volume, this achieves a comprehensive upgrade in heating efficiency, structural reliability, ease of operation and maintenance, and user experience, fully demonstrating the high-efficiency and energy-saving advantages of phase change heat storage technology in the field of distributed clean heating. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of a phase change thermal storage electric heating structure integrating self-cleaning and protection in one embodiment of the present invention.

[0020] Figure 2 This is an exploded view of a phase change thermal storage electric heating structure integrating self-cleaning and protection in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a cleaning component in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the protective component in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the host body in one embodiment of the present invention.

[0024] The reference numerals in the accompanying drawings are as follows:

[0025] 1-Main unit, 11-Air outlet, 12-Heat dissipation fins, 13-Heating tube, 14-Heat storage brick, 15-Control board, 2-Protective components, 201-Sound insulation layer, 202-Protective layer, 203-Reflector, 204-Pull plate, 3-Base plate, 31-Support block, 32-Rubber block, 4-Activated carbon filter, 5-Cleaning components, 51-Brush holder, 511-Groove, 52-Brush, 53-Threaded rod, 54-Servo motor, 55-Guide rod, 6-First fixing box, 7-Second fixing box, 8-Heat dissipation chassis, 9-Connecting plate, 10-Baffle. Detailed Implementation

[0026] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0027] In the description of this invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] like Figures 1 to 5 As shown, an embodiment of the present invention provides a phase change thermal storage electric heating structure integrating self-cleaning and protection, including a main body 1, a protective component 2 disposed around the main body 1, a base plate 3 connected to the bottom surface of the main body 1, an activated carbon filter 4 installed at the bottom of the main body 1, and a cleaning component 5 slidably connected to the bottom of the base plate 3 for cleaning the activated carbon filter 4.

[0030] The cleaning assembly 5 includes a brush holder 51, a brush 52 mounted on the brush holder 51, a threaded rod 53 threaded to the first end of the brush holder 51, a servo motor 54 connected to the threaded rod 53, and a guide rod 55 slidably connected to the second end of the brush holder 51. The servo motor 54 is mounted on the side wall of the base plate 3.

[0031] The brush holder 51 is driven by the servo motor 54 to make the brush 52 reciprocate below the activated carbon filter 4 to remove the deposits on the bottom surface of the activated carbon filter 4.

[0032] Understandably, by activating the servo motor 54, the rotation of the servo motor 54 drives the threaded rod 53 to rotate. The rotation of the threaded rod 53 causes the brush holder 51 to move on the threaded rod 53. During the movement of the brush holder 51, the brush 52 drives the brush to clean the surface of the activated carbon filter 4. By rotating the servo motor 54 in both the forward and reverse directions, the brush 52 on the brush holder 51 can reciprocate to clean the surface of the activated carbon filter 4. The guide rod 55, through its sliding engagement with the brush holder 51, provides stable linear guidance for the reciprocating motion of the brush holder 51 and the brush 52, effectively suppressing the shaking or swaying caused by the drive of the threaded rod 53, ensuring that the brush 52 always maintains uniform contact with the bottom surface of the activated carbon filter 4, thereby improving the stability and reliability of the cleaning process.

[0033] In this invention, the servo motor 54 drives the threaded rod 53 to rotate, which in turn drives the brush holder 51 and the brush 52 to move smoothly back and forth along the bottom surface of the activated carbon filter screen 4 under the guidance of the guide rod 55. This automatically removes dust and other debris attached to the filter screen, effectively solving the problem of easy clogging of the air inlet filter screen in traditional phase change heat storage electric heaters, which leads to a decrease in air intake efficiency. This ensures smooth air circulation and stable heat exchange performance of the equipment, reducing the risk of failure caused by poor air intake. At the same time, the protective component 2 can provide sound insulation, anti-scalding and reflective warning functions, ensuring safety in all aspects of use, and ultimately achieving dual optimization of heating energy efficiency and user experience.

[0034] In one embodiment, such as Figures 1 to 3As shown, the integrated self-cleaning and protective phase change heat storage electric heating structure also includes a first fixing box 6 and a second fixing box 7 respectively fixedly installed on the two side walls of the base plate 3. The top end of the first end of the brush holder 51 is connected to the bottom wall of the first fixing box 6, and the top end of the second end of the brush holder 51 is connected to the bottom wall of the second fixing box 7. The brush holder 51 is located below the activated carbon filter 4. Understandably, by symmetrically arranging the first fixing box 6 and the second fixing box 7 on the two side walls of the base plate 3, and connecting the two ends of the brush holder 51 to the bottom walls of both respectively, a cantilever structure with two ends supported is formed, which significantly improves the overall rigidity and motion stability of the cleaning component 5 and avoids the shaking or tilting problems that may be caused by single-end cantilever support. At the same time, the setting of the first fixing box 6 can provide integrated installation space and dust protection for the servo motor 54, effectively extending the service life of the transmission system and reducing the maintenance frequency.

[0035] In one embodiment, such as Figures 1 to 3 As shown, a heat dissipation housing 8 is installed at the end of the first fixing box 6, and the servo motor 54 is housed inside the heat dissipation housing 8. Understandably, by providing a dedicated heat dissipation housing 8 at the end of the first fixing box 6 to house the servo motor 54, not only is a dedicated heat dissipation channel provided for the motor, effectively preventing the heat generated by the servo motor 54 from interfering with the heat storage and heat exchange components inside the electric heater, but the servo motor 54 is also isolated from external dust and moisture, significantly extending its service life and operational reliability. Simultaneously, the integrated design of the heat dissipation housing 8 and the first fixing box 6 saves space, improves the overall structural compactness and heat dissipation efficiency, thereby ensuring the long-term stable operation of the self-cleaning system.

[0036] In one embodiment, such as Figure 3 As shown, the brush holder 51 is provided with a groove 511 for mounting the brush 52. Understandably, the brush 52 can be installed in the groove 511 through a detachable structure. The groove 511 not only provides the brush 52 with precise positioning and a stable installation space, effectively preventing the brush 52 from shifting or falling off due to vibration or friction during reciprocating cleaning, but also significantly improves the mechanical reliability of the cleaning component 5. At the same time, this design realizes the modular assembly of the brush 52 and the brush holder 51, making the replacement operation of the brush 52 more convenient and efficient.

[0037] In one embodiment, such as Figure 1 and Figure 4As shown, the protective component 2 includes a sound-insulating layer 201 wrapped around the main body 1, a protective layer 202 fixedly connected to the outer wall of the sound-insulating layer 201, and a reflector 203 affixed to one side of the sound-insulating layer 201. Understandably, this multi-layered composite protective component 2 forms a dual-functional structure through the sound-insulating layer 201 and the protective layer 202, which are sequentially wrapped from the inside out: the sound-insulating layer 201 effectively absorbs and attenuates the mechanical and airflow noise generated during equipment operation, significantly reducing environmental noise pollution and improving user comfort; the protective layer 202 acts as a physical heat insulation barrier, blocking the heat from the surface of the high-temperature main body 1, preventing accidental burns from user contact, and ensuring user safety. Simultaneously, the reflector 203 affixed to the side of the protective layer 202 reflects ambient light, allowing users to clearly observe the operating status of the main body 1 without direct contact, enhancing operational convenience and the intuitiveness of status monitoring, thereby achieving synergistic optimization of the electric heater in terms of safety, comfort, and intelligent sensing.

[0038] In one embodiment, such as Figures 1 to 4 As shown, pull plates 204 are fixedly connected to both opposite sides of the protective layer 202. Understandably, the symmetrical arrangement of pull plates 204 on both sides of the protective layer 202 provides a stable and reliable operating fulcrum for the handling and relocation of the equipment. Users can move the electric heater as a whole using the pull plates 204, avoiding direct contact with the high-temperature main body 1 or the surface of the protective layer 202, significantly improving operational safety and convenience. The pull plate 204 structure also enhances the overall rigidity of the protective layer 202, reducing the risk of deformation during transportation or use, thus balancing functionality and structural stability.

[0039] In one embodiment, such as Figure 1 and Figure 5 As shown, the main unit 1 also includes an air outlet 11 disposed on the top of the main unit 1, several sets of heat dissipation fins 12 disposed on the side of the main unit 1, a heating tube 13 disposed inside the main unit 1, several sets of heat storage bricks 14 disposed inside the main unit 1, and a control board 15 disposed on the side wall of the main unit 1. Understandably, through the integrated design of the main unit 1, comprehensive optimization of heating efficiency and functionality is achieved: the top air outlet 11 ensures directional diffusion of hot air, the side heat dissipation fins 12 enhance the efficiency of waste heat removal, the internal heating tubes 13 and heat storage bricks 14 work together to achieve rapid heating and long-term heat storage, and the control board 15 can provide precise temperature control and cleaning control. Specifically, the control board 15 can be set up using existing technology to control the start and stop of the heating tubes, power adjustment and temperature setting, as well as the start, speed, forward and reverse rotation and travel limit of the servo motor.

[0040] In one embodiment, such as Figure 1As shown, the integrated self-cleaning and protective phase change thermal storage electric heating structure also includes a connecting plate 9 fixedly connected to the top of the main body 1 and a baffle 10 connected to the connecting plate 9. Understandably, the connecting plate 9 and the baffle 10 connected thereto form a top dust barrier, which can effectively prevent dust, fibers and other debris in the environment from falling into the device from above the air outlet 11.

[0041] In one embodiment, such as Figure 1 and Figure 5 As shown, two sets of support blocks 31 are fixedly connected to the bottom surface of the base plate 3, and two sets of rubber blocks 32 are fixedly connected to the bottom surface of each set of support blocks 31. Understandably, by setting a combination structure of support blocks 31 and rubber blocks 32 at the bottom of the base plate 3, the stability of the phase change thermal storage electric heating structure and the reduction of vibration and noise are both optimized: the support blocks 31 evenly distribute the weight of the main unit to the contact surface, avoiding structural damage caused by local stress concentration; while the rubber blocks 32, with their elastic deformation characteristics, can effectively absorb the vibration energy generated during the operation of the phase change thermal storage electric heating structure, reduce operating noise, and prevent equipment slippage by increasing the coefficient of friction, thereby comprehensively improving the adaptability and safety of the phase change thermal storage electric heating structure in various usage scenarios.

[0042] The present invention also provides an electric heater, including the above-described integrated self-cleaning and protective phase change heat storage electric heater structure. In the electric heater of the above embodiments of the present invention, the integrated self-cleaning and protective phase change heat storage electric heater structure includes a main body 1, a protective component 2 disposed around the main body 1, a base plate 3 connected to the bottom surface of the main body 1, an activated carbon filter 4 installed at the bottom of the main body 1, and a cleaning component 5 slidably connected to the bottom of the base plate 3 for cleaning the activated carbon filter 4. The cleaning component 5 includes a brush holder 51, a brush 52 mounted on the brush holder 51, a threaded rod 53 threaded to a first end of the brush holder 51, a servo motor 54 connected to the threaded rod 53, and a guide rod 55 slidably connected to a second end of the brush holder 51. The servo motor 54 is mounted on the side wall of the base plate 3. The brush holder 51 is driven by the servo motor 54 to cause the brush 52 to reciprocate below the activated carbon filter 4 to remove deposits from the bottom surface of the activated carbon filter 4.

[0043] The electric heater achieves two major functions simultaneously: continuous heating and intelligent self-cleaning. During heating operation, the heating element 13 inside the main unit 1 is energized, converting electrical energy into heat energy and rapidly increasing the internal temperature of the main unit. Part of the heat generated by the heating element 13 is directly discharged through the air outlet 11 to heat the room; the other part is absorbed and stored by the heat storage brick 14. Utilizing the properties of phase change materials, the heat storage brick 14 absorbs a large amount of heat when the temperature reaches the phase change point and maintains a stable temperature, achieving long-term heat storage. The top air outlet 11 and the side heat dissipation fins 12 evenly release warm air into the room.

[0044] When self-cleaning is triggered, if the dust adhering to the bottom surface of the activated carbon filter 4 reaches a certain level and affects the air intake efficiency, the servo motor 54 is activated to drive the threaded rod 53 to rotate. The brush holder 51, which is threaded to the threaded rod 53, drives the brush 52 to move smoothly back and forth along the bottom surface of the activated carbon filter 4 under the linear guidance of the guide rod 55, in order to remove the attached dust and debris, peel the dust off the activated carbon filter 4 and let it fall into the collection area, so as to ensure that the air intake channel is unobstructed and effectively avoid the risk of heat exchange performance decline and equipment failure caused by blockage. At the same time, the sound insulation layer 201 in the protective component 2 continuously absorbs the noise of the equipment operation, the protective layer 202 blocks the high temperature surface to prevent users from being accidentally burned, and the reflector 203 reflects the ambient light so that users can intuitively monitor the status of the equipment. The three work together to enable the electric heater to operate safely, efficiently and with low noise under all working conditions, significantly improving the reliability, service life and user comfort of the system.

[0045] In the electric heater of the above embodiments of the present invention, the servo motor 54 drives the threaded rod 53 and the guide rod 55 to guide the brush seat 51 to drive the brush 52 to reciprocate, thereby realizing the automatic and efficient removal of dust on the bottom of the activated carbon filter screen 4. This fundamentally solves the technical problem that the air inlet of traditional electric heaters is easily blocked, resulting in reduced air intake efficiency, reduced heat exchange performance, and increased risk of electric heater failure. It ensures continuous and smooth air circulation and stable operation of the heat storage and heat exchange system, and significantly extends the maintenance-free period and overall service life of the electric heater. Meanwhile, the protective component 2 integrated around the main unit 1, through a multi-layer composite structure of sound insulation layer 201, protective layer 202 and reflector 203, simultaneously achieves effective suppression of operating noise, safe isolation of high-temperature surfaces and intuitive visibility of the electric heater status, greatly improving the safety, comfort and convenience of use; together with the optimized design of two fixing boxes, heat dissipation box 8 and bottom shock absorption support (support block 31 and rubber block 32), the various components form an organic whole in terms of spatial layout and functional coordination, achieving a comprehensive upgrade in heating efficiency, structural reliability, operation and maintenance convenience and user experience within a limited volume, fully demonstrating the high efficiency and energy-saving advantages of phase change thermal storage technology in the field of distributed clean heating.

[0046] The above-described 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, and should all be included within the protection scope of the present invention.

Claims

1. A phase change thermal storage electric heating structure integrating self-cleaning and protection, characterized in that, Includes a main body (1), a protective component (2) disposed around the main body (1), a base plate (3) connected to the bottom surface of the main body (1), an activated carbon filter (4) installed at the bottom of the main body (1), and a cleaning component (5) slidably connected to the bottom of the base plate (3) for cleaning the activated carbon filter (4). The cleaning assembly (5) includes a brush holder (51), a brush (52) mounted on the brush holder (51), a threaded rod (53) threaded to the first end of the brush holder (51), a servo motor (54) connected to the threaded rod (53), and a guide rod (55) slidably connected to the second end of the brush holder (51). The servo motor (54) is mounted on the side wall of the base plate (3). The brush holder (51) is driven by the servo motor (54) to make the brush (52) reciprocate below the activated carbon filter (4) to remove the deposits on the bottom surface of the activated carbon filter (4).

2. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 1, characterized in that, It also includes a first fixing box (6) and a second fixing box (7) respectively fixedly installed on the two side walls of the base plate (3). The top end of the first end of the brush holder (51) is connected to the bottom wall of the first fixing box (6), and the top end of the second end of the brush holder (51) is connected to the bottom wall of the second fixing box (7). The brush holder (51) is located below the activated carbon filter (4).

3. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 2, characterized in that, The end of the first fixed box (6) is equipped with a heat dissipation box (8), and the servo motor (54) is placed inside the heat dissipation box (8).

4. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 2, characterized in that, The brush holder (51) is provided with a groove (511) for mounting the brush (52).

5. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 2, characterized in that, The protective component (2) includes a sound insulation layer (201) wrapped around the main body (1), a protective layer (202) fixedly connected to the outer wall of the sound insulation layer (201), and a reflector (203) applied to one side of the sound insulation layer (201).

6. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 5, characterized in that, Pull plates (204) are fixedly connected to both sides of the protective layer (202).

7. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 2, characterized in that, The main body (1) also includes an air outlet (11) on the top of the main body (1), several sets of heat dissipation fins (12) on the side of the main body (1), a heating pipe (13) inside the main body (1), several sets of heat storage bricks (14) inside the main body (1), and a control board (15) on the side wall of the main body (1).

8. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 7, characterized in that, It also includes a connecting plate (9) fixedly connected to the top of the main body (1) and a baffle (10) connected to the connecting plate (9).

9. The phase change thermal storage electric heating structure integrating self-cleaning and protection according to claim 2, characterized in that, The bottom surface of the base plate (3) is fixedly connected to two sets of support blocks (31), and the bottom surfaces of the two sets of support blocks (31) are fixedly connected to two sets of rubber blocks (32).

10. An electric heater, characterized in that, Includes the phase change thermal storage electric heating structure with integrated self-cleaning and protection as described in any one of claims 1-9.

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