Far infrared sauna room

By designing a sauna room with far-infrared heating plates and electronic control components, the problems of high cost and limited applicability of existing sauna rooms have been solved, achieving efficient physiotherapy and portability, and expanding the scope of application.

CN224187264UActive Publication Date: 2026-05-01XIAMEN XIHE TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN XIHE TECH CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing saunas suffer from high manufacturing costs, inconvenience in use, and limited applicability.

Method used

The sauna room, designed with far-infrared heating plates and electronic control components, includes a main outer shell, a far-infrared electric heating film, and electronic control components. The housing area is formed by detachable retaining rings and support plates. The far-infrared electric heating film is electrically connected to the electronic control components to generate far-infrared heat radiation to improve efficiency.

Benefits of technology

It achieves highly efficient far-infrared therapy effects, reduces manufacturing and usage costs, expands the scope of application, occupies a small area and is easy to store and transport, and is suitable for a variety of usage scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a far infrared sauna room, and relates to the technical field of physiotherapy equipment. The far infrared sauna room comprises a main body shell sleeve, a far infrared heating plate, a clamping ring and an electric control assembly, the clamping ring is detachably connected with the main body shell sleeve, so that the two side edges of the main body shell sleeve are attached to form a containing area used for containing a human body in an enclosing mode. The far infrared heating plate comprises a supporting plate and a far infrared electric heating film, the supporting plate is installed in the main body shell sleeve, and the far infrared electric heating film is installed on the side, close to the containing area, of the supporting plate; and the far infrared electric heating film is electrically connected with the electric control assembly. The far infrared sauna room solves the technical problems that in the prior art, a sauna room is high in manufacturing cost and using cost and small in application range.
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Description

Technical Field

[0001] This utility model relates to the field of physiotherapy equipment technology, and in particular to a far-infrared sauna room. Background Technology

[0002] Common saunas include those that use water to generate steam, those that use carbon fiber heating panels, and those that use ceramic heating tubes. Ordinary saunas heat water using a steam generator to produce steam, which then generates heat. However, this method is difficult to control, results in uneven heating, requires wastewater disposal, and necessitates a large space, leading to complex usage and maintenance. Saunas using carbon fiber heating panels utilize conductive materials pressed onto a substrate. While they offer high heating efficiency, they are also more expensive, increasing manufacturing costs. Furthermore, the size of these saunas is limited, requiring professional installation and maintenance. Saunas using ceramic heating elements typically employ PTC (Positive Temperature Coefficient) or MCH (Metal Ceramic Heater) ceramic heating elements. These elements use alumina ceramic with high thermal conductivity as the base material and have built-in heating wires. When electricity is applied, the heating wires generate heat. However, ceramic materials are easily damaged during transportation and installation, and the heating rate is slow. Utility Model Content

[0003] The purpose of this invention is to provide a far-infrared sauna room to alleviate the technical problems of high manufacturing and usage costs and limited applicability of existing sauna rooms.

[0004] To address the aforementioned technical issues, the present invention provides the following technical solution:

[0005] The far-infrared sauna room provided by this utility model includes a main outer shell, a far-infrared heating plate, a retaining ring, and an electronic control component;

[0006] The retaining ring is detachably connected to the main body shell, so that the two sides of the main body shell fit together to form a receiving area for accommodating the human body;

[0007] The far-infrared heating plate includes a support plate and a far-infrared electric heating film. The support plate is installed inside the main body outer shell, and the far-infrared electric heating film is installed on the side of the support plate near the receiving area.

[0008] The far-infrared electrothermal film is electrically connected to the electronic control component.

[0009] Furthermore, the far-infrared electrothermal film includes a base film, and a conductive electrode, a far-infrared heating coating, and an insulating layer sequentially disposed on the base film.

[0010] Furthermore, multiple support plates and far-infrared electrothermal films are provided, with the multiple support plates arranged circumferentially along the outer shell of the main body, and each of the multiple support plates corresponding to and bonded to a multiple of the far-infrared electrothermal films; or,

[0011] The far-infrared electrothermal film is installed at intervals on multiple of the support plates.

[0012] Furthermore, the far-infrared heating plate also includes a temperature limiting device, which is installed on the far-infrared electrothermal film and electrically connected to the electronic control component.

[0013] Furthermore, multiple retaining rings are provided, and the multiple retaining rings are spaced apart along the axial direction of the main body outer shell.

[0014] Furthermore, the main body shell is fitted with a pulley assembly, which is arranged circumferentially along the main body shell shell.

[0015] The retaining ring has a retaining groove, and the pulley assembly slides in conjunction with the retaining groove.

[0016] Furthermore, handles are installed on both sides of the main body shell, and both handles are arranged along the axial direction of the main body shell, and the two handles are detachably connected.

[0017] Furthermore, the two handles are magnetically engaged.

[0018] Furthermore, the main body outer shell includes a composite surface layer and a composite inner layer, the composite surface layer and the composite inner layer are disposed opposite to each other, and the support plate and the far-infrared electrothermal film are both installed between the composite surface layer and the composite inner layer.

[0019] Furthermore, the far-infrared sauna also includes a top cover, which is installed on top of the main body shell.

[0020] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0021] This utility model provides a far-infrared sauna room comprising a main outer shell, a far-infrared heating plate, a retaining ring, and an electrical control component. The retaining ring is detachably connected to the main outer shell, allowing the two sides of the main outer shell to fit together and form a receiving area for accommodating a human body. The far-infrared heating plate includes a support plate and a far-infrared electrothermal film. The support plate is installed inside the main outer shell, and the far-infrared electrothermal film is installed on the side of the support plate closest to the receiving area. The far-infrared electrothermal film is electrically connected to the electrical control component. When using the far-infrared sauna room, the retaining ring is installed on the main outer shell, allowing the two sides of the main outer shell to fit together and form a receiving area for accommodating a human body. When storing the far-infrared sauna room, the retaining ring is removed from the main outer shell, and the main outer shell is folded. The support plate is located inside the main outer shell and is used to support and fix the far-infrared electrothermal film. The far-infrared electrothermal film is electrically connected to the electrical control component and generates heat when energized. The heat is mainly transferred outward in the form of far-infrared thermal radiation, improving far-infrared efficiency and enhancing the therapeutic effect.

[0022] The advantages of this far-infrared sauna room include: high far-infrared efficiency, using far-infrared electric heating film as the far-infrared heat source, high far-infrared ratio, good therapeutic effect, and reduced manufacturing and usage costs; portability, ease of use, and convenient assembly and disassembly, increasing its applicability; small footprint and easy storage, simple storage process that does not take up space and is convenient for transportation; diverse shapes, with appearances to match different user groups and usage scenarios, expanding its applicability. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 Schematic diagram of the structure of the far-infrared sauna provided in this embodiment of the utility model Figure 1 ;

[0025] Figure 2 Schematic diagram of the structure of the far-infrared sauna provided in this embodiment of the utility model Figure 2 ;

[0026] Figure 3 An exploded view of the far-infrared sauna provided for an embodiment of this utility model;

[0027] Figure 4 A schematic diagram of the structure of the locking ring in the far-infrared sauna provided in this embodiment of the utility model;

[0028] Figure 5Schematic diagram of the structure of the far-infrared sauna provided in this embodiment of the utility model Figure 3 ;

[0029] Figure 6 An exploded view of the main body outer shell of the far-infrared sauna provided in this embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the structure of the far-infrared electrothermal film in the far-infrared sauna provided in this embodiment of the utility model;

[0031] Figure 8 Schematic diagram of the structure of the far-infrared sauna provided in this embodiment of the utility model Figure 4 ;

[0032] Figure 9 Schematic diagram of the structure of the far-infrared sauna provided in this embodiment of the utility model Figure 5 ;

[0033] Figure 10 A schematic diagram of the structure of the hand controller in the far-infrared sauna provided in this embodiment of the utility model.

[0034] icon:

[0035] 100 - Main body outer shell; 110 - Handle; 120 - Composite surface layer; 130 - Composite inner layer;

[0036] 210-Support plate; 220-Far-infrared electrothermal film; 221-Base film; 222-Conductive electrode; 223-Far-infrared heating coating; 224-Insulating layer;

[0037] 300 - Card ring; 310 - Card slot;

[0038] 400 - Manual controller; 410 - Digital display screen; 420 - Heating button; 430 - Temperature reduction button; 440 - Timer button; 450 - Time reduction button; 460 - Power button;

[0039] 500 - Top cover. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances.

[0046] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0047] The far-infrared sauna provided in this embodiment includes a main outer shell 100, a far-infrared heating plate, a retaining ring 300, and an electrical control component. The retaining ring 300 is detachably connected to the main outer shell 100, so that the two sides of the main outer shell 100 fit together to form a receiving area for accommodating a human body. The far-infrared heating plate includes a support plate 210 and a far-infrared electric heating film 220. The support plate 210 is installed inside the main outer shell 100, and the far-infrared electric heating film 220 is installed on the side of the support plate 210 near the receiving area. The far-infrared electric heating film 220 is electrically connected to the electrical control component.

[0048] Specifically, see Figure 1 and Figure 2 Far-infrared sauna rooms come in two types: fully enclosed and semi-enclosed, with different heights. The usage method for fully enclosed sauna rooms is as follows... Figure 5 It can be used with a chair or cushion inside the far-infrared sauna, allowing for seated use. The head can protrude from the top of the far-infrared sauna. Further details can be found at [link to details]. Figure 6 The far-infrared electric heating film 220 is adhered to the support plate 210. Of course, the snap-fit ​​connection between the far-infrared electric heating film 220 and the support plate 210 should also be within the protection scope of this utility model embodiment. It is worth noting that the shape of the retaining ring 300 is not limited to a circle; a square shape, etc., should also be within the protection scope of this utility model embodiment.

[0049] See Figures 1 to 10 When using the far-infrared sauna, the retaining ring 300 is installed on the main outer shell 100, so that the two sides of the main outer shell 100 fit together to form a receiving area for accommodating the human body; when storing the far-infrared sauna, the retaining ring 300 is removed from the main outer shell 100, and the main outer shell 100 is folded. The support plate 210 is located inside the main outer shell 100 and is used to support and fix the far-infrared electric heating film 220; the far-infrared electric heating film 220 is electrically connected to the electronic control components, and can generate heat when energized. The heat is mainly transferred outward in the form of far-infrared thermal radiation, improving far-infrared efficiency and enhancing the therapeutic effect. The advantages of this far-infrared sauna room include: high far-infrared efficiency, using a 220 far-infrared electric heating film as the far-infrared heat source, resulting in a high far-infrared ratio, good therapeutic effect, and reduced manufacturing and usage costs; portability, ease of use, and convenient assembly and disassembly, increasing its applicability; small footprint and easy storage, with a simple storage process that does not take up space and is convenient for transportation; and diverse shapes, with designs to match different user groups and usage scenarios, expanding its applicability.

[0050] The following is a detailed description of the structure and shape of the far-infrared sauna room:

[0051] In an optional embodiment of this utility model, the far-infrared electrothermal film 220 includes a base film 221, and a conductive electrode 222, a far-infrared heating coating 223, and an insulating layer 224 sequentially disposed on the base film 221.

[0052] Specifically, see Figure 7 In this embodiment, the far-infrared electrothermal film 220 comprises, from bottom to top, a base film 221, a conductive electrode 222, a far-infrared heating coating 223, and an insulating layer 224. The manufacturing process is as follows: fabrication of the conductive electrode 222, printing and curing of the far-infrared heating coating 223, and lamination of the insulating layer 224. The conductive electrode 222 can be formed by printing a metal conductive paste onto the base film 221 and then drying it. The base film 221 can be one of the following materials: polyimide film, polyester film, or fabric. The metal conductive paste can be one of the following: silver paste, copper paste, or metal composite conductive paste. The conductive electrode 222 can also be obtained by etching the designed electrode pattern onto a metal-coated plastic film. The far-infrared heating coating 223 is printed using graphene-based conductive ink. The printing process includes, but is not limited to, one or more of the following: screen printing, gravure printing, or coating. After printing, it is dried at a temperature greater than 120°C for 30 minutes. The insulating layer 224 is one or more of the following: insulating coating, insulating tape, or insulating hot-pressed film.

[0053] The far-infrared electric heating film 220 is connected to the electronic control components via wires. When the far-infrared electric heating film 220 is powered on, it generates heat, which is mainly transferred outward in the form of far-infrared thermal radiation, thus realizing the heating function of the far-infrared sauna room.

[0054] In an optional embodiment of this utility model, multiple support plates 210 and far-infrared electric heating films 220 are provided. Multiple support plates 210 are arranged circumferentially along the main body outer shell 100, and multiple support plates 210 and multiple far-infrared electric heating films 220 are attached one-to-one; or, multiple support plates 210 are spaced apart with far-infrared electric heating films 220.

[0055] Specifically, see Figure 8 When the number of support plates 210 is small, each support plate 210 is equipped with a far-infrared electric heating film 220; or, see Figure 9When there are many support plates 210, the far-infrared electric heating film 220 is installed on the support plates 210 in a spaced-out manner. That is, no far-infrared electric heating film 220 is installed on two adjacent support plates 210 with the same support plate 210, in order to control the spacing between the far-infrared electric heating films 220 and ensure the safety of the far-infrared sauna room. Preferably, the support plates 210 are made of high-temperature resistant materials, including epoxy resin boards, metal boards, plastic boards, and one or more other high-temperature resistant and lightweight materials. They not only support the far-infrared electric heating film 220, but also support the far-infrared sauna room as a whole.

[0056] Reasonable placement of the far-infrared electric heating film 220 improves the safety of the far-infrared sauna room.

[0057] In an optional embodiment of this utility model, the far-infrared heating plate further includes a temperature limiting device, which is installed on the far-infrared electric heating film 220 and electrically connected to the electronic control component.

[0058] Specifically, when the temperature of the far-infrared sauna room is too high, exceeding the set temperature, the temperature limiting device feeds this information back to the chip in the electronic control component, which then controls the far-infrared heating film 220 to stop heating. When the temperature of the far-infrared sauna room drops below the set temperature, the temperature limiting device feeds this information back to the chip in the electronic control component, which then controls the far-infrared heating film 220 to start. The temperature limiting device includes a temperature sensor.

[0059] A temperature limiting device is fixed on the far-infrared electric heating film 220, which further improves the safety of the far-infrared sauna room.

[0060] In an optional embodiment of this utility model, multiple retaining rings 300 are provided, and the multiple retaining rings 300 are spaced apart along the axial direction of the main body outer shell 100.

[0061] Specifically, in this embodiment, two retaining rings 300 are provided, and the two retaining rings 300 are respectively connected to the top and bottom of the main body outer shell 100.

[0062] Multiple 300-gauge rings improve the stability of the far-infrared sauna room.

[0063] In an optional embodiment of this utility model, the main body outer shell 100 is provided with a pulley assembly, which is arranged along the circumference of the main body outer shell 100; the retaining ring 300 is provided with a retaining groove 310, and the pulley assembly slides in cooperation with the retaining groove 310.

[0064] Specifically, the pulley system includes multiple pulleys, which are spaced apart circumferentially along the main body casing 100; multiple pulleys made of metal or plastic are installed at both the top and bottom of the main body casing 100; see [link to documentation]. Figure 3 and Figure 4The retaining ring 300 is made of one or more materials such as metal, PET (polyethylene terephthalate), PE (polyethylene), and PP (polypropylene). It has a retaining groove 310 on one side and an inlet groove communicating with the retaining groove 310. The pulley slides into the retaining groove 310 from the inlet groove, achieving a detachable connection between the pulley and the retaining ring 300. Preferably, the cross-section of the retaining groove 310 is T-shaped. The retaining ring 300 and the pulley form a sliding structure. After assembly, the user can move the main body shell 100 through the sliding structure, facilitating the opening or closing of the main body shell 100.

[0065] The pulley system and the retaining ring 300 slide together, making it convenient for the user to move the main body shell 100 and enabling a detachable connection between the retaining ring 300 and the main body shell 100.

[0066] In an optional embodiment of this utility model, handles 110 are installed on both sides of the main body shell 100. The two handles 110 are arranged along the axial direction of the main body shell 100 and are detachably connected.

[0067] Specifically, the handle 110 is made of one or more materials such as metal, PET (polyethylene terephthalate), PE (polyethylene), and PP (polypropylene), and is installed on the left and right sides of the composite surface layer 120.

[0068] The handle 110 makes it easy to open or close the far-infrared sauna.

[0069] In an optional embodiment of this utility model, the two handles 110 are magnetically engaged.

[0070] Specifically, a magnetic connector is installed between the two handles 110 to achieve magnetic attraction between the two handles 110, thereby achieving a detachable connection between the two handles 110; of course, a snap-fit ​​connector is also installed between the two handles 110 to achieve a detachable connection between the two handles 110, which should also be within the protection scope of this utility model embodiment.

[0071] The two handles 110 are detachable and serve to secure the far-infrared sauna room when it is closed.

[0072] In an optional embodiment of this utility model, the main body outer shell 100 includes a composite surface layer 120 and a composite inner layer 130, with the composite surface layer 120 and the composite inner layer 130 arranged opposite to each other. The support plate 210 and the far-infrared electric heating film 220 are both installed between the composite surface layer 120 and the composite inner layer 130.

[0073] Specifically, the composite outer layer 120 includes a cleaning outer layer and a supporting outer layer, which are bonded together. The cleaning outer layer is made of durable and easy-to-clean fabrics such as linen, suede, or leather, while the supporting outer layer is made of supporting materials such as fleece or rubber. The composite inner layer 130 includes a breathable layer and a supporting inner layer, which are bonded together. The breathable layer is made of breathable and quick-drying fabrics such as mesh, while the supporting inner layer is made of supporting materials such as sponge. The composite outer layer 120 and the composite inner layer 130 are sewn together by heat pressing or stitching.

[0074] The composite surface layer 120 and the composite inner layer 130 are used to form a space to accommodate the support plate 210, which reduces the weight of the far-infrared sauna room, facilitates transportation, and reduces manufacturing costs.

[0075] In an optional embodiment of this utility model, the far-infrared sauna room also includes a top cover 500, which is installed on the top of the main body shell 100.

[0076] Specifically, see Figure 5 The top cover 500 is transparent and can be made of materials such as PC, PMMA, PP, and PET, allowing for openings and lighting in the far-infrared sauna room. The top cover 500 can be attached separately to the main body shell 100 or connected to the retaining ring 300.

[0077] The 500mm top cover improves the lighting effect of the far-infrared sauna room, thereby enhancing the user experience.

[0078] In an optional embodiment of this utility model, the electronic control component includes a hand controller 400 and a power cord; the far-infrared electric heating film 220 is connected to the connector protection box via a wire, and the connector protection box is then connected to a 220V household power supply via a wire. See also Figure 10 The hand controller 400 includes a digital display screen 410, a heating button 420, a cooling button 430, a time-increasing button 440, a time-decreasing button 450, and a power button 460.

[0079] The following is a detailed explanation of the operation mode of the far-infrared sauna room:

[0080] Press and hold the power button 460 to turn on the sauna. The default far-infrared sauna temperature is 55℃, and the timer is 45 minutes. The corresponding number will be displayed on the digital display screen 410. Short press the heating button 420 or the cooling button 430 to adjust the sauna temperature. Each press adjusts the temperature by one degree, with an adjustable range of 50°C-75°C. Short press the timer button 440 or the timer button 450 to adjust the sauna's operating time, with an adjustable range of 45 minutes-120 minutes and selectable settings (45 minutes, 60 minutes, 1.5 hours, 2.0 hours). The sauna will automatically shut off after the preset time. The controller 400 has a built-in safety protection chip. In addition to the temperature regulation and protection of the temperature limiting device, the sauna will automatically shut off when the temperature exceeds 75 degrees Celsius and will resume operation immediately when the temperature drops to a safe range.

[0081] The advantages of far-infrared sauna rooms are explained below:

[0082] High far-infrared efficiency: Using far-infrared electric heating film 220 as the far-infrared heat source, the far-infrared ratio is high, resulting in good therapeutic effects;

[0083] Safety: Equipped with dual protection of a temperature limiting device and a temperature limiting program;

[0084] Portable: Easy to use and easy to assemble and disassemble;

[0085] Small footprint and easy to store:

[0086] The storage process is simple and space-saving; it can be arranged in various forms.

[0087] The design is tailored to different user groups and usage scenarios.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A far-infrared sauna room, characterized in that, include: The main body outer shell (100), far-infrared heating plate, retaining ring (300), and electronic control components; The retaining ring (300) is detachably connected to the main body shell (100), so that the two sides of the main body shell (100) fit together to form a receiving area for accommodating the human body; The far-infrared heating plate includes a support plate (210) and a far-infrared electric heating film (220). The support plate (210) is installed inside the main body outer shell (100), and the far-infrared electric heating film (220) is installed on the side of the support plate (210) near the receiving area. The far-infrared electrothermal film (220) is electrically connected to the electronic control component.

2. The far-infrared sauna room according to claim 1, characterized in that, The far-infrared electrothermal film (220) includes a base film (221), and a conductive electrode (222), a far-infrared heating coating (223), and an insulating layer (224) sequentially disposed on the base film (221).

3. The far-infrared sauna room according to claim 1, characterized in that, Multiple support plates (210) and multiple far-infrared electrothermal films (220) are provided. The multiple support plates (210) are arranged circumferentially along the main body outer shell (100), and the multiple support plates (210) are attached to the multiple far-infrared electrothermal films (220) in a one-to-one correspondence; or, The far-infrared electrothermal film (220) is installed at intervals on multiple of the support plates (210).

4. The far-infrared sauna room according to claim 1, characterized in that, The far-infrared heating plate also includes a temperature limiting device, which is installed on the far-infrared electrothermal film (220) and electrically connected to the electronic control component.

5. The far-infrared sauna room according to claim 1, characterized in that, Multiple retaining rings (300) are provided, and the multiple retaining rings (300) are spaced apart along the axial direction of the main body outer shell (100).

6. The far-infrared sauna room according to claim 1, characterized in that, The main body outer shell (100) is provided with a pulley assembly, which is arranged along the circumference of the main body outer shell (100); The retaining ring (300) is provided with a retaining groove (310), and the pulley assembly slides in cooperation with the retaining groove (310).

7. The far-infrared sauna room according to claim 1, characterized in that, The main body shell sleeve (100) is equipped with handles (110) on both sides. The two handles (110) are arranged along the axial direction of the main body shell sleeve (100), and the two handles (110) are detachably connected.

8. The far-infrared sauna room according to claim 7, characterized in that, The two handles (110) are magnetically engaged.

9. The far-infrared sauna room according to any one of claims 1-8, characterized in that, The main body outer shell (100) includes a composite surface layer (120) and a composite inner layer (130), the composite surface layer (120) and the composite inner layer (130) are arranged opposite to each other, and the support plate (210) and the far-infrared electrothermal film (220) are both installed between the composite surface layer (120) and the composite inner layer (130).

10. The far-infrared sauna room according to any one of claims 1-8, characterized in that, The far-infrared sauna room also includes a top cover (500), which is installed on top of the main body shell (100).