Arc-shaped warmer

Abstract

The utility model relates to the technical field of heating equipment, in particular to an arc-shaped heater. An arc-shaped warmer comprises an outer framework, and a high-temperature-resistant electric heating film is arranged in the outer framework. The outer framework comprises an outer frame, a front plate and a back plate, and the high-temperature-resistant electric heating film is located between the front plate and the back plate; the front plate is detachably connected to the outer frame; the back plate is detachably connected to the outer frame; the surface, facing the high-temperature-resistant electric heating film, of the back plate is connected with a heat insulation assembly. The high-temperature-resistant electric heating film is connected with a power supply connecting assembly through a wire; the power connection assembly is detachably connected to the outer frame. According to the arc-shaped warmer, the high-temperature-resistant electric heating film serves as a heat source, the overall anti-falling performance and the using performance of the arc-shaped warmer are relatively better, the overall mass of the arc-shaped warmer can be reduced, and the arc-shaped warmer is light, handy and convenient to transport and carry.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to an arc heater. Background Art

[0002] Heaters provide essential warmth and protection from the cold, while also creating a comfortable living environment. Currently, the majority of heaters available in the consumer market are vertical, straight-panel models, suitable for heating small and medium-sized spaces such as homes, offices, and classrooms. Curved heaters, driven by consumer demand and the complexity of their manufacturing process, are relatively expensive to produce, resulting in limited market distribution.

[0003] Existing arc heaters, such as the arc office heater disclosed in Publication No. CN205569155 U, consist of a wooden frame, a carbon crystal plate mounted within the frame, wires, a controller, and a temperature control switch. The wooden frame includes a front panel and a back panel, with an insulating layer located between the carbon crystal plate and the back panel. The front panel is equipped with several bars, each embedded with a number of far-infrared radiating health blocks. Carbon crystal plates, also known as carbon crystal electric heating plates, are made by ball-milling modified carbon fibers to create carbon crystal particles. These carbon crystal particles are then combined with a polymer resin using a special process to create a heating material.

[0004] The inventors discovered that the heating power and heating rate of existing arc heaters are related to the resistance of the carbon crystal heating plate, which is closely related to the carbon crystal content of the plate. While carbon crystal heating plates with high carbon crystal content offer good heating power and heating rates, they suffer from poor toughness and impact resistance. Arc heaters made with these high-carbon crystal heating plates are not drop-resistant and have high transport requirements. Falls and bumps can easily cause the plates to break, impacting overall performance.

[0005] To this end, the inventor provides an arc heater that uses a high-temperature resistant electric heating film as a heat source. Utility Model Content

[0006] In order to solve the problem that the carbon crystal electric heating plate in the above-mentioned existing arc heaters has poor toughness and is not impact-resistant, resulting in the arc heater being not resistant to falling, having poor performance in use and having high transportation and packaging costs, the present application provides an arc heater with a high-temperature resistant electric heating film as the heat source. The overall resistance to falling and performance of the arc heater are relatively better, and the overall mass of the arc heater can be reduced. It is lightweight and easy to transport and carry.

[0007] The arc heater provided in this application is realized by the following technical solutions:

[0008] An arc-shaped heater includes an exoskeleton, in which a high-temperature resistant electric heating film is arranged; the exoskeleton includes an outer frame, a front plate, and a back plate, and the high-temperature resistant electric heating film is located between the front plate and the back plate; the front plate is detachably connected to the outer frame; the back plate is detachably connected to the outer frame; the surface of the back plate facing the high-temperature resistant electric heating film is connected to a heat insulation component; the high-temperature resistant electric heating film is connected to a power connection component via a wire; the power connection component is detachably connected to the outer frame.

[0009] The high-temperature resistant electric heating film is patented with application number 2024102260153, entitled "A High-Temperature Resistant Electric Heating Film and Its Preparation Method," and discloses a high-temperature resistant electric heating film. The applicant's self-developed high-temperature resistant electric heating film, as a new energy-saving household appliance component, can be used in a variety of applications in the household appliance field, achieving energy conservation and emission reduction goals.

[0010] Preferably, the high-temperature resistant electric heating film includes an aramid electric heating film, a conductive electrode, and a heat-insulating high-temperature resistant insulating film. The heat-insulating high-temperature resistant insulating film is fixedly connected to the aramid electric heating film; the conductive electrode is fixedly connected to the surface of the aramid electric heating film facing away from the heat-insulating high-temperature resistant insulating film; the conductive electrode of the high-temperature resistant electric heating film is connected to a power connection assembly through a wire.

[0011] Preferably, the design heating temperature of the high temperature resistant electric heating film is 120-280°C, the temperature uniformity ΔT of the electric heating film is 0.6-1.32, the maximum instantaneous heating rate is 1.15-3.41°C / s, and the surface resistance is 67.8-6.21*10 4 Ω / sq.

[0012] This application uses a high-temperature resistant electric heating film as the core heating component. The surface resistance of the high-temperature resistant electric heating film can be adjusted. By selecting high-temperature resistant electric heating films with different surface resistances, arc heaters with different rated output powers can be obtained to meet the application needs of different consumers. The high-temperature resistant electric heating film has a fast heating rate, giving the arc heater an excellent rapid heating effect, which can replace traditional carbon crystal electric heating plates.

[0013] Preferably, the power connection assembly includes a coupler, a thermostat, and a power plug. The coupler is fixedly connected to the conductive electrode of the high-temperature resistant electric heating film through a wire; one end of the thermostat is detachably connected to the coupler and the other end is fixedly connected to the power plug.

[0014] Preferably, the outer frame includes a bottom connecting profile, a top connecting profile, a left connecting profile, and a right connecting profile, and the bottom connecting profile and the top connecting profile have the same structure; the left connecting profile and the right connecting profile have the same structure; one end of the left connecting profile is clamped to the bottom connecting profile, and the other end is clamped to the top connecting profile; one end of the right connecting profile is clamped to the bottom connecting profile, and the other end is clamped to the top connecting profile.

[0015] Preferably, the end sides of the bottom connecting profile and the top connecting profile are both formed with a first annular clamping groove; one end of the left connecting profile is clamped in the first annular clamping groove of the bottom connecting profile, and the other end is clamped in the first annular clamping groove of the top connecting profile; the bottom connecting profile and the top connecting profile are both formed with a first strip clamping groove and a second strip clamping groove along their own length direction; one end of the front plate is clamped in the first strip clamping groove of the bottom connecting profile, and the other end is clamped in the first strip clamping groove of the top connecting profile; one end of the back plate is clamped in the second strip clamping groove of the bottom connecting profile, and the other end is clamped in the second strip clamping groove of the top connecting profile.

[0016] Preferably, the bottom connecting profile and the top connecting profile are both formed with a third strip-shaped clip-on groove along their own length direction; the third strip-shaped clip-on groove is located between the first strip-shaped clip-on groove and the second strip-shaped clip-on groove; the third strip-shaped clip-on groove of the bottom connecting profile and the third strip-shaped clip-on groove of the top connecting profile are both detachably connected to the heating film fixing assembly A.

[0017] Preferably, the left connecting profile and the right connecting profile are both formed with a fourth strip clamping groove and a fifth strip clamping groove along their own length direction; one end of the front panel is clamped to the fourth strip clamping groove of the left connecting profile, and the other end is clamped to the fourth strip clamping groove of the right connecting profile; one end of the back panel is clamped to the fifth strip clamping groove of the left connecting profile, and the other end is clamped to the fifth strip clamping groove of the right connecting profile; the left connecting profile and the right connecting profile are both formed with a sixth strip clamping groove along their own length direction; the sixth strip clamping groove is located between the fourth strip clamping groove and the fifth strip clamping groove; the sixth strip clamping groove of the left connecting profile and the sixth strip clamping groove of the right connecting profile can be detachably connected to the heating film fixing component B.

[0018] Preferably, the heating film fixing assembly A and the heating film fixing assembly B have the same structure; taking the heating film fixing assembly A as an example, the heating film fixing assembly A includes a strip clip, a U-shaped strip, an elastic gasket, and several tightening screws, the strip clip is clamped in the third strip clip groove of the bottom connecting profile or the third strip clip groove of the top connecting profile; the bottom of the U-shaped strip is fixedly connected to the strip clip; the number of the elastic gaskets is two, one of the elastic gaskets is fixedly connected to the inner bottom surface of the U-shaped strip, and the other elastic gasket is fixedly connected to the inner top surface of the U-shaped strip; the heat-insulating and high-temperature-resistant insulating film of the high-temperature-resistant electric heating film is clamped between the two elastic gaskets; the tightening screw is threadedly connected to the U-shaped strip, and the bottom end face of the tightening screw abuts against the surface of the elastic gasket, and the high-temperature-resistant electric heating film is clamped between the two elastic gaskets by turning the tightening screw.

[0019] By adopting the above technical solution, the structure is simple and easy to assemble, maintain and transport, and it is beneficial to reduce the production cost of the arc heater, making it easier to enter the market at a lower price and improve market competitiveness.

[0020] Preferably, the thermal insulation component includes an aluminum-plated reflective film and a porous thermal insulation layer, and the aluminum-plated reflective film is fixedly connected to the surface of the porous thermal insulation layer; the aluminum-plated reflective film includes an aluminum-plated layer and a PI base layer, and the surface of the aluminum-plated layer faces the high-temperature resistant electric heating film; the PI base layer is fixedly connected to the porous thermal insulation layer through a dispensing process.

[0021] The thermal insulation component in this application effectively improves the utilization rate of thermal energy, helps to reduce energy consumption and save electricity resources.

[0022] In summary, this application has the following advantages:

[0023] 1. The present application provides an arc heater with a high-temperature resistant electric heating film as the heat source. The arc heater has better overall drop resistance and performance, and can reduce the overall mass of the arc heater. It is lightweight and easy to transport and carry.

[0024] 2. The structure of this application is simple and easy to assemble, maintain and transport, and it is beneficial to reduce the production cost of the arc heater, making it easier to enter the market at a lower price and enhance market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the arc heater in this application.

[0026] Figure 2 It is a schematic transverse cross-sectional view of the arc heater of the present application.

[0027] Figure 3 It is a structural schematic diagram of the high-temperature resistant electric heating film in the arc heater of this application.

[0028] Figure 4 This is a schematic diagram of the connection between the heating film fixing component A and the bottom connecting profile in the arc heater of the present application.

[0029] Figure 5 This is a schematic diagram of the structure of the thermal insulation component in the arc heater of this application.

[0030] In the figure, 1. Exoskeleton; 11. Outer frame; 12. Front plate; 13. Back plate; 2. High-temperature resistant electric heating film; 21. Aramid electric heating film; 22. Conductive electrode; 23. Heat-insulating high-temperature resistant insulating film; 3. Heat-insulating assembly; 31. Aluminum-plated reflective film; 311. Aluminum-plated layer; 312. PI base layer; 32. Porous insulation layer; 4. Power connection assembly; 41. Coupler; 42. Thermostat; 43. Power plug; 5. Bottom connection Profile; 51, first annular clip-on groove; 52, second annular clip-on groove; 53, third annular clip-on groove; 6, top connecting profile; 7, left connecting profile; 71, fourth strip clip-on groove; 72, fifth strip clip-on groove; 73, sixth strip clip-on groove; 8, right connecting profile; 9, heating film fixing component A; 90, heating film fixing component B; 91, strip clip; 92, U-shaped strip; 93, elastic gasket; 94, tightening screw. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings and examples. Example

[0032] Reference Figure 1 and Figure 2 , an arc heater includes an outer frame 1, and a high temperature resistant electric heating film 2 is arranged inside the outer frame 1. The structure of the high temperature resistant electric heating film 2 is disclosed in the application number 2024102260153, the invention name is a high temperature resistant electric heating film and its preparation method, reference Figure 3 The high-temperature-resistant electric heating film 2 includes an aramid electric heating film 21, a conductive electrode 42, and a heat-insulating, high-temperature-resistant insulating film 23. The heat-insulating, high-temperature-resistant insulating film 23 is fixedly connected to the aramid electric heating film 21. The conductive electrode 22 is fixedly connected to the surface of the aramid electric heating film 21 facing away from the heat-insulating, high-temperature-resistant insulating film 23. The film thickness of the heat-insulating, high-temperature-resistant insulating film 23 is 60-150 microns, while the film thickness of the aramid electric heating film 21 is 60-100 microns. The ratio of the film thickness of the aramid electric heating film 21 to the film thickness of the heat-insulating, high-temperature-resistant insulating film 23 is 1:(1.2-1.5). The surface of the heat-insulating, high-temperature-resistant insulating film 23 facing away from the aramid electric heating film 21 is formed with a 50-500 nm thick metal heat radiation reflective coating 210 by physical vapor deposition. The metal heat radiation reflective coating 210 is selected from the group consisting of aluminum, copper, silver, iron, aluminum-copper alloy, and aluminum-silver alloy. Aluminum is preferred due to its economical performance. The conductive electrode 22 is a 100-200 nm thick silver electrode formed on the surface of the heat-insulating, high-temperature-resistant insulating film 23 via physical vapor deposition.

[0033] The parameter information of high temperature resistant electric heating film is derived from the following: the design steady-state heating temperature of high temperature resistant electric heating film is 120-280℃, the temperature uniformity of electric heating film is △T is 0.6-1.32, the maximum instantaneous heating rate is 1.15-3.41℃ / s, and the surface resistance is 67.8-6.21*10 4 Ω / sq, specifically derived from the high-temperature resistant electric heating film prepared in specific embodiments 1-21 of a high-temperature resistant electric heating film and a preparation method thereof in publication number CN118480681A.

[0034] The preferred embodiment is the high temperature resistant electric heating film of embodiment 11-20, with a designed steady-state heating temperature of 200.7-221.6°C, a temperature uniformity of ΔT of 0.98-1.21, a maximum instantaneous heating rate of 2.81-3.16°C / s, and a surface resistance of 498.5-663.2*10 4 Ω / sq.

[0035] Reference Figure 1 and Figure 2 The outer frame 1 includes an outer frame 11, a front plate 12 clamped in the outer frame 11, and a back plate 13 clamped in the outer frame 11. The high-temperature resistant electric heating film 2 is clamped between the front plate 12 and the back plate 13. The surface of the back plate 13 facing the high-temperature resistant electric heating film 2 is connected to the heat insulation component 3, so that the temperature on the back plate 13 side is lower, the thermal energy utilization rate is improved, and it is beneficial to reduce energy consumption and save electricity resources.

[0036] Reference Figure 2 and Figure 4 The high-temperature resistant electric heating film 2 is connected to a power connection assembly 4 via a wire. The power connection assembly 4 is detachably connected to the outer frame 11. The power connection assembly 4 includes a coupler 41, a thermostat 42, and a power plug 43. The coupler 41 is fixedly connected to the outer frame 11 and is soldered to the conductive electrode 22 of the high-temperature resistant electric heating film 2 via a wire. One end of the thermostat 42 is connected to the coupler connector via a wire, and the coupler connector is plugged into the coupler 41. The other end of the thermostat 42 is connected to the power plug 43 via a wire, thereby realizing the detachable connection of the power connection assembly 4 to the outer frame 11.

[0037] Reference Figure 2 and Figure 4 The outer frame 11 includes a bottom connecting profile 5, a top connecting profile 6, a left connecting profile 7, and a right connecting profile 8, wherein the bottom connecting profile 5 and the top connecting profile 6 have the same structure; the left connecting profile 7 and the right connecting profile 8 have the same structure.

[0038] Reference Figure 2 and Figure 4One end of the left connecting profile 7 is clamped to the bottom connecting profile 5, and the other end of the left connecting profile 7 is clamped to the top connecting profile 6. Specifically, the end sides of the bottom connecting profile 5 and the top connecting profile 6 are integrally injection-molded with a first annular clamping groove 51. One end of the left connecting profile 7 is clamped into the first annular clamping groove 51 of the bottom connecting profile 5, and the other end is clamped into the first annular clamping groove 51 of the top connecting profile 6, that is, the left connecting profile 7 is clamped between the bottom connecting profile 5 and the top connecting profile 6. One end of the right connecting profile 8 is clamped into the first annular clamping groove 51 of the bottom connecting profile 5, and the other end is clamped into the first annular clamping groove 51 of the top connecting profile 6, that is, the right connecting profile 8 is clamped between the bottom connecting profile 5 and the top connecting profile 6, that is, the bottom connecting profile 5, the top connecting profile 6, the left connecting profile 7, and the right connecting profile 8 are clamped to form the outer frame 11. The outer frame 11 has a simple structure and is easy to assemble, maintain and transport, and is beneficial to reducing the production cost of the arc heater, making it easier to enter the market at a lower price and improving market competitiveness.

[0039] Reference Figure 2 and Figure 4 The connection structure of the outer frame 11, front panel 12, and back panel 13 is as follows: the inner surfaces of the bottom connecting profile 5 and the top connecting profile 6 are each formed with a first strip-shaped snap-in groove 52 and a second strip-shaped snap-in groove 53 along their length. Taking the bottom connecting profile 5 as an example, the first strip-shaped snap-in groove 52 is closer to the front side relative to the arc heater, while the second strip-shaped snap-in groove 53 is closer to the back side relative to the arc heater.

[0040] Reference Figure 2 and Figure 4 One end of the front panel 12 is snapped into the first strip-shaped snap-in groove 52 of the bottom connecting profile 5, and the other end of the front panel 12 is snapped into the first strip-shaped snap-in groove 52 of the top connecting profile 6, thereby achieving the snap-in connection of the front panel 12 to the outer frame 11. One end of the back panel 13 is snapped into the second strip-shaped snap-in groove 53 of the bottom connecting profile 5, and the other end of the back panel 13 is snapped into the second strip-shaped snap-in groove 53 of the top connecting profile 6, thereby achieving the snap-in connection of the back panel 13 to the outer frame 11.

[0041] Reference Figure 2 and Figure 4 , the left connecting profile 7 and the right connecting profile 8 are both formed with a fourth strip-shaped snap-in groove 71 and a fifth strip-shaped snap-in groove 72 along their length. Taking the left connecting profile 7 as an example, the fourth strip-shaped snap-in groove 71 is close to the front side relative to the arc-shaped heater, while the fifth strip-shaped snap-in groove 72 is close to the rear side relative to the arc-shaped heater. One end of the front panel 12 is snap-in to the fourth strip-shaped snap-in groove 71 of the left connecting profile 7, and the other end of the front panel 12 is snap-in to the fourth strip-shaped snap-in groove 71 of the right connecting profile 8. One end of the back panel 13 is snap-in to the fifth strip-shaped snap-in groove 72 of the left connecting profile 7, and the other end of the back panel 13 is snap-in to the fifth strip-shaped snap-in groove 72 of the right connecting profile 8.

[0042] The front plate 12, i.e., the panel, can be made of a plastic mesh, an aramid mesh, or a mesh plate made of a heat-resistant plastic material. If the front plate 12 is made of an aramid mesh, the front plate 12 includes a frame that is snap-fitted to the outer frame 11 and an aramid mesh fixedly connected to the inner side of the frame. The front plate 12, i.e., the panel, is a plastic mesh, and the plastic mesh is made of PI, PPS, PEEK, or ABS. If the front plate 12 is made of a heat-resistant plastic mesh, the heat-resistant plastic mesh is a 0.5-2mm thick PI mesh plate with a mesh diameter of 5-30mm, a spacing of 1.0-25.0cm between adjacent meshes, and a central axis of the mesh perpendicular to the central axis of the front plate 12.

[0043] The back plate 13 adopts a plastic mesh, and the plastic mesh is made of PI, PPS, PEEK, or ABS.

[0044] Reference Figure 2 and Figure 4 The connection structure between the high-temperature resistant electric heating film 2 and the exoskeleton 1 is as follows: The bottom connecting profile 5 and the top connecting profile 6 are each formed along their length with a third strip-shaped snap-in groove 54 located between the first strip-shaped snap-in groove 52 and the second strip-shaped snap-in groove 53. The third strip-shaped snap-in groove 54 of the bottom connecting profile 5 and the third strip-shaped snap-in groove 54 of the top connecting profile 6 are both detachably connected to a heating film fixing assembly A9 for fixing the high-temperature resistant electric heating film 2. The specific detachable connection method is snap-in.

[0045] Reference Figure 2 and Figure 4 The left and right connecting profiles 7 and 8 each have a sixth strip-shaped snap-in slot 73 formed along their length, located between the fourth and fifth strip-shaped snap-in slots 71 and 72. The sixth strip-shaped snap-in slots 73 of both the left and right connecting profiles 7 and 8 are removably connected to a heating film fixing assembly B90, specifically a snap-on connection. The heating film fixing assembly B90 allows for the disassembly and assembly of the high-temperature-resistant electric heating film 2.

[0046] The heating film fixing assembly A9 and the heating film fixing assembly B90 are both made of 6 series aluminum alloy.

[0047] Reference Figure 2 and Figure 4The structures of heating film fixing assembly A9 and heating film fixing assembly B90 are identical. Taking heating film fixing assembly A9 as an example, heating film fixing assembly A9 includes a strip clip 91, a U-shaped strip 92, an elastic gasket 93, and several tightening screws 94. Strip clip 91 of heating film fixing assembly A9 is clipped into the third strip clip groove 54 of the bottom connecting profile 5, thereby clipping heating film fixing assembly A9 onto the bottom connecting profile 5. Strip clip 91 of heating film fixing assembly A9 is clipped into the third strip clip groove 54 of the top connecting profile 6, thereby clipping heating film fixing assembly A9 onto the top connecting profile 6. Similarly, strip clip 91 of heating film fixing assembly B90 is clipped into the fourth strip clip groove 71 of the left connecting profile 7, thereby clipping heating film fixing assembly B90 onto the left connecting profile 7. The strip clamping strip 91 of the heating film fixing assembly B90 is clamped in the fifth strip clamping groove 72 of the right connecting profile 8 , that is, the heating film fixing assembly B90 is clamped on the right connecting profile 8 .

[0048] Reference Figure 2 and Figure 4 The strip clip 91 is integrally extruded at the bottom of the U-shaped strip 92. Two elastic gaskets 93 are fixedly connected in the U-shaped space of the U-shaped strip 92, one of which is fixedly connected to the bottom surface of the U-shaped strip 92 and the other is fixedly connected to the top surface of the U-shaped strip 92.

[0049] Reference Figure 1 and Figure 2 The vertical projections of the aramid electric heating film 21 and the heat-insulating high-temperature resistant insulating film 23 are similar rectangles, and the vertical projection size of the heat-insulating high-temperature resistant insulating film 23 is larger than the vertical projection size of the aramid electric heating film 21. The heat-insulating high-temperature resistant insulating film 23 of the high-temperature resistant electric heating film 2 is clamped between the two elastic gaskets 93. The specific clamping adjustment method depends on the tightening screw 94. The U-shaped bar 92 is tapped with a threaded hole. The tightening screw 94 is threadedly connected to the threaded hole of the U-shaped bar 92. The bottom end surface of the tightening screw 94 abuts against the surface of the elastic gasket 93. By tightening the tightening screw 94, the high-temperature resistant electric heating film 2 is clamped between the two elastic gaskets 93. The tightening screw 94 can also be loosened to remove the high-temperature resistant electric heating film 2 for maintenance and replacement.

[0050] Reference Figure 4 and Figure 5 To prevent overheating on the back panel 13 side, the thermal insulation assembly 3 is composed of an aluminized reflective film 31 and a porous thermal insulation layer 32. The aluminized reflective film 31 is formed by physical vapor deposition and consists of a 200-500nm thick aluminized layer 311 and a PI base layer 312. The surface of the aluminized layer 311 faces the high-temperature resistant electric heating film 2, and the PI base layer 312 and the porous thermal insulation layer 32 are fixedly connected by a dispensing process using epoxy glue. The porous thermal insulation layer 32 is also fixedly connected to the back panel 13 by a dispensing process using epoxy glue.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An arc heater, comprising an outer frame (1), characterized in that: A high-temperature resistant electric heating film (2) is arranged in the outer frame (1); the outer frame (1) comprises an outer frame (11), a front plate (12), and a back plate (13); the high-temperature resistant electric heating film (2) is located between the front plate (12) and the back plate (13); the front plate (12) is detachably connected to the outer frame (11); the back plate (13) is detachably connected to the outer frame (11); a heat insulation component (3) is connected to the surface of the back plate (13) facing the high-temperature resistant electric heating film (2); the high-temperature resistant electric heating film (2) is connected to a power connection component (4) via a wire; the power connection component (4) is detachably connected to the outer frame (11).

2. The arc heater according to claim 1, characterized in that: The high-temperature resistant electric heating film (2) comprises an aramid electric heating film (21), a conductive electrode (22), and a heat-insulating high-temperature resistant insulating film (23); the heat-insulating high-temperature resistant insulating film (23) is fixedly connected to the aramid electric heating film (21); the conductive electrode (22) is fixedly connected to the surface of the aramid electric heating film (21) facing away from the heat-insulating high-temperature resistant insulating film (23); and the conductive electrode (22) of the high-temperature resistant electric heating film (2) is connected to a power supply connection component (4) via a wire.

3. The arc heater according to claim 2, characterized in that: The power connection assembly (4) includes a coupler (41), a thermostat (42), and a power plug (43). The coupler (41) is fixedly connected to the conductive electrode (22) of the high-temperature resistant electric heating film (2) via a wire; one end of the thermostat (42) is detachably connected to the coupler (41) and the other end is fixedly connected to the power plug (43).

4. The arc heater according to claim 2, characterized in that: The design heating temperature of the high temperature resistant electric heating film (2) is 120-280°C, the temperature uniformity ΔT of the electric heating film is 0.6-1.32, the maximum instantaneous heating rate is 1.15-3.41°C / s, and the surface resistance is 67.8-6.21*10 4 Ω / sq.

5. The arc heater according to claim 2, characterized in that: The outer frame (11) comprises a bottom connecting profile (5), a top connecting profile (6), a left connecting profile (7), and a right connecting profile (8); the bottom connecting profile (5) and the top connecting profile (6) have the same structure; the left connecting profile (7) and the right connecting profile (8) have the same structure; one end of the left connecting profile (7) is clamped to the bottom connecting profile (5), and the other end is clamped to the top connecting profile (6); one end of the right connecting profile (8) is clamped to the bottom connecting profile (5), and the other end is clamped to the top connecting profile (6).

6. The arc heater according to claim 5, characterized in that: The bottom connecting profile (5) and the top connecting profile (6) are both formed with a first annular clamping groove (51) on their end sides; one end of the left connecting profile (7) is clamped in the first annular clamping groove (51) of the bottom connecting profile (5), and the other end is clamped in the first annular clamping groove (51) of the top connecting profile (6); the bottom connecting profile (5) and the top connecting profile (6) are both formed with a first strip clamping groove (52) and a second strip clamping groove (53) along their length direction; one end of the front plate (12) is clamped in the first strip clamping groove (52) of the bottom connecting profile (5), and the other end is clamped in the first strip clamping groove (52) of the top connecting profile (6); one end of the back plate (13) is clamped in the second strip clamping groove (53) of the bottom connecting profile (5), and the other end is clamped in the second strip clamping groove (53) of the top connecting profile (6).

7. The arc heater according to claim 6, characterized in that: The bottom connecting profile (5) and the top connecting profile (6) are both formed with a third strip-shaped snap-in groove (54) along their length direction; the third strip-shaped snap-in groove (54) is located between the first strip-shaped snap-in groove (52) and the second strip-shaped snap-in groove (53); the third strip-shaped snap-in groove (54) of the bottom connecting profile (5) and the third strip-shaped snap-in groove (54) of the top connecting profile (6) are both detachably connected to a heating film fixing assembly A (9).

8. The arc heater according to claim 7, characterized in that: The left connecting profile (7) and the right connecting profile (8) are both formed with a fourth strip-shaped snap-in groove (71) and a fifth strip-shaped snap-in groove (72) along their length direction; one end of the front plate (12) is snap-in connected to the fourth strip-shaped snap-in groove (71) of the left connecting profile (7), and the other end is snap-in connected to the fourth strip-shaped snap-in groove (71) of the right connecting profile (8); one end of the back plate (13) is snap-in connected to the fifth strip-shaped snap-in groove (72) of the left connecting profile (7), and the other end is snap-in connected to the fifth strip-shaped snap-in groove (72) of the right connecting profile (8). The fifth strip-shaped snap-in groove (72) of the connecting profile (8); the left connecting profile (7) and the right connecting profile (8) are both formed with a sixth strip-shaped snap-in groove (73) along their length direction; the sixth strip-shaped snap-in groove (73) is located between the fourth strip-shaped snap-in groove (71) and the fifth strip-shaped snap-in groove (72); the sixth strip-shaped snap-in groove (73) of the left connecting profile (7) and the sixth strip-shaped snap-in groove (73) of the right connecting profile (8) are both detachably connected to a heating film fixing assembly B (90).

9. The arc heater according to claim 8, characterized in that: The heating film fixing assembly A (9) and the heating film fixing assembly B (90) have the same structure; taking the heating film fixing assembly A (9) as an example, the heating film fixing assembly A (9) comprises a strip clamping strip (91), a U-shaped strip (92), an elastic gasket (93), and a plurality of tightening screws (94); the strip clamping strip (91) is clamped to the third strip clamping groove (54) of the bottom connecting profile (5) or the third strip clamping groove (54) of the top connecting profile (6); the bottom of the U-shaped strip (92) is fixedly connected to the strip clamping strip (91); the number of the elastic gaskets (93) is There are two elastic gaskets (93), one of which is fixedly connected to the inner bottom surface of the U-shaped strip (92), and the other elastic gasket (93) is fixedly connected to the inner top surface of the U-shaped strip (92); the heat-insulating high-temperature insulating film (23) of the high-temperature resistant electric heating film (2) is clamped between the two elastic gaskets (93); the tightening screw (94) is threadedly connected to the U-shaped strip (92), and the bottom end surface of the tightening screw (94) is in contact with the surface of the elastic gasket (93), and the high-temperature resistant electric heating film (2) is clamped between the two elastic gaskets (93) by turning the tightening screw (94).

10. The arc heater according to claim 1, characterized in that: The heat insulation component (3) comprises an aluminum-plated reflective film (31) and a porous heat insulation layer (32), wherein the aluminum-plated reflective film (31) is fixedly connected to the surface of the porous heat insulation layer (32); the aluminum-plated reflective film (31) comprises an aluminum-plated layer (311) and a PI base layer (312), wherein the surface of the aluminum-plated layer (311) faces the high-temperature resistant electric heating film (2); and the PI base layer (312) is fixedly connected to the porous heat insulation layer (32) by a dispensing process.

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