SAUNA HEATING DEVICE

The sauna heating device with graphene-coated heating elements and convection fans addresses the issues of carbonization and inefficient heat transfer in conventional devices, ensuring safe and comfortable sauna experiences.

FR3150925A3Active Publication Date: 2025-01-10DCC TECH CO LTD
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Patent Information

Application Number
FR2023013082
Authority / Receiving Office
FR · FR
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2023-07-04
Filing Date
2023-11-27
Publication Date
2025-01-10
Estimated Expiration
2033-11-27

AI Technical Summary

Technical Problem

Conventional sauna heating devices suffer from reduced lifespan due to carbonization of graphite heating layers and fiberglass insulating layers, posing safety risks and inefficient heat transfer, leading to excessively hot and dry sauna conditions.

Method used

A sauna heating device with a housing made of wood, featuring graphene-coated heating elements with crystalline glass insulation, plasma conductive strips, and convection fans, ensuring even heat distribution and rapid temperature increase.

Benefits of technology

The device provides enhanced safety, efficient heat transfer, and comfortable sauna conditions by preventing carbonization, maintaining appropriate temperature ranges, and avoiding dryness, while reducing the risk of injury.

✦ Generated by Eureka AI based on patent content.

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Abstract

SAUNA HEATING DEVICE The invention relates to a sauna heating device (100) comprising a housing (10) having upper, lower, front, rear, left and right panels (11, 13, 15), the upper, lower, left and right panels (11, 15) each having spaced slot elements; and the lower panel having two holes; a heating device comprising heating elements having four sides fixed in the slot elements, respectively, each heating element comprising a heating layer, a first insulating layer and a second insulating layer, and two conductive strips in which the heating layer is fixed in the first insulating layer; the first insulating layer protects the heating layer; and a convection device comprising two fans in the holes, respectively, and directly under the heating elements.The front panel (13) has a display panel (131) and an on / off switch (132). Figure to be published with the abbreviation: Figure 1.
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Description

Title of the invention: SAUNA HEATING DEVICE FIELD OF THE INVENTION

[0001] The invention relates to heating devices and more particularly to a sauna heating device having improved characteristics.

[0002] BACKGROUND OF THE INVENTION

[0003] A conventional central heating device is illustrated in Figures 7 to 9 and comprises a housing 1, a plurality of parallel plate-shaped heating elements 2 within the housing 1, and a temperature controller 3 electrically connected to the heating elements 2 to regulate the temperature of the heating device. The heating element 2 comprises a rectangular heating layer 4, two elongated conductive copper sheets 5 on two sides of the heating layer 4, and upper and lower insulating layers 6 surrounding the heating layer 4 and the copper sheets 5 using heat and pressure. The heating elements 2 have the advantage of efficiently transferring heat by radiation and convection, thus preventing injury to a user's hands and increasing user safety.

[0004] However, the heating elements 2 tend to carbonize, resulting in a decrease in service life, because the heating layers 4 are made of graphite and the insulating layers 6 are made of fiberglass.

[0005] Further improvements are therefore still needed. Summary of the invention

[0006] The invention therefore aims to provide a sauna heating device comprising a housing having a top panel, a bottom panel, a front panel, a rear panel, a left panel and a right panel, in which the top panel, the bottom panel, the left panel and the right panel each have a plurality of spaced slot elements, and the bottom panel has two holes; a heating device comprising a plurality of plate-shaped heating elements having four sides fixed in the slot elements of the top panel, the bottom panel, the left panel and the right panel, respectively, such that the heating elements are equidistant in the housing, in which each of the heating elements comprises a heating layer, a first insulating layer, two parallel conductive strips and a second insulating layer;in which the heating layer is fixed to the first insulating layer for electrical conduction and heat transfer; in which the first insulating layer is configured to protect the heating layer and transfer heat in such a way that the layer; heating element is configured to transfer heat uniformly; wherein conductive strips are fixed to two sides of the heating layer, respectively, and configured to conduct electricity; and wherein a second insulating layer is fixed to the heating layer to provide thermal insulation; and a convection device comprising two fans on a lower side of the heating elements, wherein the fans are arranged in holes in the lower panel, respectively; and wherein the fans are aligned vertically over the heating elements.

[0007] Advantageously, the front panel has a display panel and an on / off switch, wherein the display panel is configured to represent a temperature and a duration, and wherein the on / off switch is configured to activate or deactivate the sauna heating device, further comprising two light bars arranged on two sides of the front panel, respectively.

[0008] Advantageously, the lower parts of the heating elements are electrically connected to a power supply which is electrically connected to the display panel.

[0009] Advantageously, the sauna heating device further includes a remote control electrically connected to the display panel.

[0010] Advantageously, the heating layer is implemented in the form of a graphene coating and the conductive bands are made of plasma.

[0011] Advantageously, the first insulating layer is made of crystalline glass and the second insulating layer is implemented in the form of a coating having thermal insulation (preferably excellent).

[0012] Advantageously, the case is made of wood.

[0013] The invention offers the following advantages and benefits compared to conventional techniques: the heating layer of each heating element is implemented in the form of a graphene coating, and graphene is electrically conductive and has high thermal conductivity. The heating layer is bonded to the first insulating layer, which is made of crystalline glass. The heating elements are not susceptible to carbonization. Furthermore, the heating elements are housed within the casing, which is made of wood. Thus, a bather is not at risk of injury by touching the casing. This increases safety during a sauna session. The fans are located on the underside of the heating elements.In response to the power supply to the heating elements, the heating layer of each element heats up to emit infrared radiation through the first and second insulating layers, respectively. Additionally, fans draw air out of the sauna heater through [unclear - possibly "vents"]. The heating elements are spaced apart, allowing the sauna temperature to rise rapidly. Their high thermal conductivity ensures a comfortable experience as the temperature is maintained at a suitable level. This sauna is warm, not dry. Unlike a traditional sauna, which is excessively hot due to poor heat transfer, this type of sauna can cause injury by touching a heat source or internal component.

[0014] The objectives, features and advantages of the above invention and others will be better understood from reading the detailed description that follows in association with the accompanying drawings. Brief description of the drawings

[0015] [Fig-1] is a perspective view of a sauna heating device according to a preferred embodiment of the invention;

[0016] [Fig.2] is another perspective view of the sauna heating device;

[0017] [Fig.3] is an exploded view of the sauna heating device;

[0018] [Fig.4] is an exploded view of the heating element;

[0019] [Fig.5] is a longitudinal cross-sectional view of the sauna heating device;

[0020] [Fig.6] schematically represents air flow paths of the device sauna heater in operation;

[0021] [Fig.7] is a perspective view of a centralized sauna heating device classic;

[0022] [Fig.8] is a perspective view of the heating element of [Fig.7]; and

[0023] [Fig.9] is an exploded view of the heating element of [Fig.8]. DETAILED DESCRIPTION OF THE INVENTION

[0024] With reference to Figures 1 to 6, a sauna heating device 100 according to a preferred embodiment of the invention comprises the following components, as described in detail below.

[0025] A housing 10 is made of wood and comprises a top panel 11, a bottom panel 12, a front panel 13, a rear panel 14, a left panel 15, and a right panel 16. The top panel 11, bottom panel 12, left panel 15, and right panel 16 each have a plurality of spaced slot elements 17. The bottom panel 12 has two holes 121. The front panel 13 has a display panel 131 and an on / off switch 132, both located on a lower portion. The temperature and time are displayed on the display panel 131. A user can press the on / off switch 132 to turn the sauna heater 100 on or off. Two light bars 133 are located on two sides of the front panel 13, respectively.

[0026] A heating device 20 comprises a plurality of rectangular plate-shaped heating elements 21 having four sides fixed in slotted elements 17 of the upper panel 11, lower panel 12, left panel 15, and right panel 16, respectively. Thus, the heating elements 21 are equidistant within the housing 10. The heating element 21 comprises a heating layer 211, a first insulating layer 212, two parallel conductive strips 213, and a second insulating layer 214. The heating layer 211 is implemented in the form of a graphene coating, and graphene is electrically conductive, has high thermal conductivity, and is capable of emitting infrared radiation. The heating layer 211 is fixed to the first insulating layer 212. The first insulating layer 212 is made of crystalline glass (for example, silicon crystalline glass) and configured to protect the heating layer 211 and transfer heat.Thus, the heating layer 211 can transfer heat uniformly. The conductive strips 213 are fixed to two sides of the heating layer 211, respectively, and are configured to conduct electricity. The conductive strips 213 are made of plasma. The second insulating layer 214 is fixed to the heating layer 211 to provide thermal insulation. The second insulating layer 214 is implemented as a coating with excellent thermal insulation. The lower parts of the heating elements 21 are electrically connected to a power supply 50, which is also electrically connected to the display panel 131.

[0027] A convection device 30 comprises two fans 31 on the lower side of the heating elements 21. The fans 31 are arranged in holes 121 in the lower panel 12, respectively. The fans 31 are aligned vertically with the heating elements 21.

[0028] A remote control 40 is electrically connected to the display panel 131. A user can use the remote control 40 to set a desired temperature and duration for the sauna heater 100, so that the sauna heater 100 can operate at the set temperature. The desired temperature and duration for the sauna heater 100 are displayed on the display panel 131.

[0029] As shown in Figures 3 to 6, the sauna heater 100 is located in a sauna (e.g., a dry steam room). A user can press the on / off switch 132 before use. The sauna heater 100 is then activated. The user can then use the remote control 40 to set the desired temperature and duration of the sauna heater 100. Preferably, the temperature is set to 50-60 °C and the duration to 10 minutes in this embodiment of the invention. In response to The heating elements 21 are powered by a heating layer 211, which in turn heats the heating layer 211 to emit infrared radiation through the first insulating layer 212 and the second insulating layer 214, respectively. Additionally, fans 31 draw air from outside the sauna heater 100 through gaps between the heating elements 21. These heating elements then heat the air before it exits the upper panel 11 of the housing 10. The sauna is thus heated. The steam and high heat cause bathers to sweat, thereby accelerating metabolism, eliminating fatigue and discomfort, and increasing vitality.

[0030] The invention offers the following advantages and benefits compared to conventional techniques: the presence of multiple heating elements 21 increases the total heating surface area. The heating layer 211 of each heating element 21 is implemented in the form of a graphene coating, and graphene is electrically conductive and has high thermal conductivity. The heating layer 211 is fixed to the first insulating layer 212, which is made of crystalline glass. The heating elements 21 are not susceptible to carbonization. Furthermore, the heating elements 21 are housed within the casing 10, and the casing 10 is made of wood. Thus, a bather cannot injure themselves by touching the casing 10. This increases safety during a sauna session. The fans 31 are located on the underside of the heating elements 21.In response to the power supplied to the heating elements 21, the heating layer 211 of each heating element 21 heats up to emit infrared radiation through the first insulating layer 212 and the second insulating layer 214, respectively. In addition, fans 31 draw air from outside the sauna heater 100 through spaces between the heating elements 21. Thus, the temperature in the sauna rises rapidly. The heating elements 21 have increased thermal conductivity. A bather can experience a certain level of comfort because the temperature in the sauna is maintained within a suitable range. The sauna is warm, not dry. This differs from a conventional sauna, which is excessively hot due to poor heat transfer, and in which the bather can injure themselves by touching a heat source or component installed inside.

[0031] Although the invention has been described in terms of preferred embodiments, a person skilled in the art will recognize that the invention can be put into practice with modifications, without departing from the scope of the present invention.

Claims

Claims

1. Sauna heating device (100), characterized in that it comprises: a housing (10) comprising a top panel (11), a bottom panel (12), a front panel (13), a rear panel (14), a left panel (15) and a right panel (16), wherein the top panel (11), the bottom panel (12), the left panel (15) and the right panel (16) each have a plurality of spaced slot members (17), and the bottom panel (12) has two holes (121); a heating device (20) comprising a plurality of plate-shaped heating elements (21) having four sides fixed in the slot members (17) of the upper panel (11), the lower panel (12), the left panel (15) and the right panel (16), respectively, such that the heating elements (21) are equidistant in the housing (10), wherein each of the heating elements (21) comprises a heating layer (211), a first insulating layer (212), two parallel conductive strips (213) and a second insulating layer (214); wherein the heating layer (211) is fixed on the first insulating layer (212) for electricity conduction and heat transfer; wherein the first insulating layer (212) is configured to protect the heating layer (211) and transfer heat such that the heating layer (211) is configured to uniformly transfer heat;wherein the conductive strips (213) are attached to two sides of the heating layer (211), respectively, and configured to conduct electricity; and wherein the second insulating layer (214) is attached to the heating layer (211) to provide thermal insulation; and; a convection device (30) comprising two fans (31) on a lower side of the heating elements (21), wherein the fans (31) are arranged in the holes (121) of the bottom panel (12), respectively; and wherein the fans (31) are vertically aligned on the heating elements (21).

2. A sauna heater (100) according to claim 1, characterized in that the front panel (13) has a display panel (131) and an on / off switch (132), wherein the display panel (131) is configured to represent a temperature and a time, and wherein the on / off switch (132) is configured to activate or deactivate the sauna heating device (100), further comprising two light bars (133) arranged on two sides of the front panel (13), respectively.

3. A sauna heating device (100) according to claim 2, characterized in that the lower portions of the heating elements (21) are electrically connected to a power supply (50) which is electrically connected to the display panel (131).

4. Sauna heating device (100) according to claim 2, characterized in that it further comprises a remote control (40) electrically connected to the display panel (131).

5. Sauna heating device (100) according to claim 1, characterized in that the heating layer (211) is implemented in the form of a graphene coating and the conductive strips (213) are made of plasma.

6. Sauna heating device (100) according to claim 1, characterized in that the first insulating layer (212) is made of crystalline glass and the second insulating layer (214) is implemented in the form of a coating having thermal insulation.

7. Sauna heating device (100) according to claim 1, characterized in that the housing (10) is made of wood.