Radiant heating system

Abstract

The invention relates to a radiant heating system (10) having a radiating surface (12) along which one or more heating paths (14, 14a, 14b) for generating radiant heat run, wherein the one or more heating paths (14, 14a, 14b) each comprise at least one heating conductor (16, 16a, 16b).

Description

[0001] Radiant heating

[0002] The invention relates to a radiant heater with a radiating surface,

[0003] 5 along which one or more heating paths run to generate radiant heat, wherein the one or more heating paths each comprise at least one heating conductor.

[0004] Furthermore, the invention relates to a vehicle seat with radiant heating.

[0005] Furthermore, the invention relates to a heating panel with radiant heating.

[0006] 10 Furthermore, the invention relates to a method for operating a radiant heater with a radiating surface along which one or more heating paths run to generate radiant heat, wherein the one or more heating paths each comprise at least one heating conductor.

[0007] Radiant heaters, for example infrared heating panels in the vehicle interior,

[0008] Radiant heaters typically have a single radiating surface and also emit heat through convection. When mounted upright, the upper surface area of ​​the heater can become warmer than the lower surface area because warm air rises, and consequently, the upper surface area of ​​the heater is heated more by the convection.

[0009] 20 rising warm air is additionally heated. Consequently, the surface of the radiant heater exhibits an inhomogeneous surface temperature, or rather, convective heat loss. Furthermore, due to the increased surface temperature of the upper surface area of ​​the radiant heater, the risk of injury, or rather the

[0010] 25. Increased risk of burns to the user, especially vehicle occupants. To achieve a certain homogeneous temperature distribution from the radiant heating system, highly conductive materials, such as carbon nanotubes, are used in the prior art. However, the use of such highly conductive materials is often not cost-effective and leads to

[0011] 30°C only partially leads to an even temperature distribution with vertically mounted radiant heaters. -07-2025-42839601 -Main post-0011

[0012] 04-07-2025-42833601“HauP4pQs ■t-OOl 1 PCT / DE2025 / 000074

[0013] - 2 -

[0014] The object underlying the invention is therefore to generate a uniform surface temperature across the entire surface area of ​​the radiant heater.

[0015] The problem is solved by a radiant heating system of the type mentioned above, wherein at least one heating conductor of one or more heating paths is arranged and / or designed such that different area-specific heat radiation outputs can be generated along the radiating surface by energizing one or more heating paths. Because different area-specific heat radiation outputs can be generated along the radiating surface by energizing one or more heating paths, a uniform or consistent heat distribution along the radiating surface occurs when the radiant heating system is inclined relative to a horizontal, particularly in an upright or vertical orientation.Because different surface-specific heat radiation powers can be generated along the radiation surface by energizing one or more heating paths, uniform or consistent heat conduction, in particular conduction and / or convection, can occur. Heat radiation has a heat radiation power of 20. Heat radiation power can include heating power and / or heat flux density. Surface-specific heat radiation power is measured in W / m². 2specified. A heat-conducting layer can be arranged on the at least one heating conductor and / or on the radiating surface. Alternatively, the radiating surface can be designed as a heat-conducting layer 25. The heat-conducting layer has increased thermal conductivity, particularly compared to the at least one heating conductor. The heat-conducting layer can have increased thermal conductivity compared to the radiating surface. The heat-conducting layer can comprise thermally conductive materials such as carbon, graphite, silver, gold, aluminum, copper, 30 vanadium dioxide, and / or nickel. The heat-conducting layer can be represented with heat pipes. The heat-conducting layer preferably has a higher thermal conductivity along the direction of flowing or natural convection than perpendicular to it. The heat-conducting layer can be a film, a nonwoven fabric, a -07-2025-42839601 -Main post-0012

[0016] 04-07-2025-42839801 -H au P * P □ s -t - 0012 PCT / DE2025 / 000074

[0017] - 3 -

[0018] The heat-conducting layer can be made of nonwoven fabric and / or a textile. It can be sheet-shaped. The heat-conducting layer can have a thermal conductivity of at least 75 W / mK, preferably at least 100 W / mK, and particularly preferably at least 150 W / mK. The heating paths can be straight or curved.

[0019] 5 and / or angled sections. The heating paths may be meandering. Radiant heat may include infrared radiation. Radiant heat may include long-wave radiation. The at least one heating conductor may comprise one or more metals. The at least one heating conductor, or the one or more heating paths, may be

[0020] 10. Located behind a panel, in particular a vehicle interior panel. The radiating surface can emit heat radiation over a large area and / or in specific regions.

[0021] In another embodiment of the radiant heating system according to the invention, at least one heating conductor of one or more heating paths is each

[0022] 15 such that by energizing one or more heating paths, multi-stage or continuously changing heat radiation outputs can be generated along the radiation surface in one direction of power change. The direction of power change runs from a first to a second side of the radiation surface. The first and second

[0023] 20 sides of the radiation surface are opposite each other.

[0024] In a preferred embodiment of the radiant heating system according to the invention, the heat radiation output, which changes in multiple stages or continuously in the direction of power change, is achieved by varying conductor spacings between adjacent conductors in the direction of power change.

[0025] 25 heating conductor sections of the at least one heating conductor can be generated. The adjacent heating conductor sections of the at least one heating conductor can run parallel and / or inclined to each other. The adjacent heating conductor sections of the at least one heating conductor can be at an angle between 0 and 30 degrees, preferably 0 and 20 degrees, particularly

[0026] The heating conductors are preferably inclined at 0 and 10 degrees to each other. The adjacent heating conductor sections of the at least one heating conductor are spaced apart from each other. -07-2025-42839601 -Main post-0013

[0027] 04- 07-20 5-42839801 — H au s ~ 0013 PCT / DE2025 / 000074

[0028] In a further preferred embodiment of the radiant heating system according to the invention, the varying conductor spacing of the at least one heating conductor increases or decreases in the direction of power change. The varying conductor spacing of the at least one heating conductor can be

[0029] 5. The direction of power change increases or decreases uniformly, or linearly. Thus, in the direction of power change, there is a uniform, or linear, change in the heat radiation of the radiant heater. The at least one heating conductor can comprise a first heating conductor section, a second heating conductor section, and a third heating conductor section. The first

[0030] The first heating conductor section and the second heating conductor section can be arranged adjacent to each other. The adjacent first and second heating conductor sections have a first conductor spacing. The second heating conductor section and the third heating conductor section can be arranged adjacent to each other. The adjacent second heating conductor sections

[0031] The first and third heating conductor sections comprise a second conductor spacing. The first and second conductor spacings can have identical or different spacing values. The at least one heating conductor can comprise multiple pairs of heating conductor sections, with each heating conductor section pair comprising two adjacent heating conductor sections.

[0032] 20 All heating conductor section pairs of at least one heating conductor can have matching conductor spacings.

[0033] In another preferred embodiment of the radiant heating system according to the invention, the heat radiation output, which changes in multiple stages or continuously in the direction of power change, is regulated by a

[0034] 25. A varying number of heating conductors can be generated depending on the direction of power change. A heating conductor density that varies depending on the direction of power change is possible. The radiant heating system can comprise one heating conductor in a first area and at least two heating conductors in a second area. The radiant heating system can additionally include a third area with one or more heating conductors.

[0035] 30. The radiant heating system must include at least two heating conductors. Depending on the application, the heating conductor density can vary in the direction of power change. Alternatively, the radiant heating system can have a constant heating conductor density in the direction of power change. -07-2025-42839601 -Main post-0014

[0036] 04-07-2025-42839601-HauP*Pcs t-0014 PCT / DE2025 / 000074

[0037] - 5 - In a further preferred embodiment of the radiant heating system according to the invention, the heat radiation output, which changes in multiple stages or continuously in the direction of power change, is distributed through heating conductor sections of the at least one heating conductor, in which the at least one heating conductor is in

[0038] 5. The circuit can be configured to have varying cross-sections depending on the direction of power change. These varying cross-sections can encompass width and / or depth. The varying cross-sections can increase or decrease in the direction of power change. The at least one heating conductor can have areas with matching cross-sections and / or areas with differing cross-sections.

[0039] 10 different cross-sections. The cross-sections of at least one heating conductor can vary continuously or in stages in the direction of power change. The cross-sections of at least one heating conductor can increase or decrease in the direction of power change. The cross-sections of at least one heating conductor can be perpendicular to the direction of power change.

[0040] 15 vary. The heating conductor sections of at least one heating conductor can run at least partially transversely and / or parallel to the direction of power change.

[0041] Furthermore, a radiant heating system according to the invention is advantageous in which the varying cross-sections of the at least one heating conductor in

[0042] 20. The varying cross-sections of at least one heating conductor can increase or decrease linearly, exponentially, continuously, and / or in multiple stages in the direction of power change.

[0043] In a preferred embodiment of the invention

[0044] 25. In radiant heating, the heating conductor sections of the heating conductor run transversely and / or parallel to the direction of power change. The heating conductor sections of the heating conductor can run obliquely or inclined to the direction of power change. The heating conductor sections of the heating conductor can be at an angle between 0 and 30 degrees, preferably 0 and 20 degrees.

[0045] 30, particularly preferably inclined at 0 and 10 degrees to the direction of power change. -07-2025-42839601 -Main post-0015

[0046] 04-07-2025-42839601-HauP P B S i-0015 PCT / DE2025 / 000074

[0047] - 6 - In another preferred embodiment of the radiant heating system according to the invention, the heat radiation output, which changes in multiple stages or continuously in the direction of power change, is distributed through heating conductor sections of the at least one heating conductor, in which the at least one heating conductor is in

[0048] 5 several conductor tracks can be generated. The at least one heating conductor comprises a first area, a second area, and a transition area. The transition area includes a branch area. The transition area is located between the first area and the second area. In the first and second areas, the at least

[0049] 10. A heating conductor has a different number of conductor tracks. The at least one heating conductor can have at least one fewer conductor track in the first area than in the second area. The at least one heating conductor can comprise one conductor track in the first area, while the at least one heating conductor comprises at least two conductor tracks in the second area. In the

[0050] 15. In the transition area, the number of conductor tracks of at least one heating conductor changes. The transition area represents the transition from the first area to the second area. Consequently, several conductor tracks branch off from the at least one conductor track of the heating conductor in the first area within the transition area. The branched conductor tracks are located in the second area.

[0051] The transition area is arranged in 20 sections. The transition area can extend transversely to the direction of power change. The transition area can be linear or straight. The transition area can be inclined or perpendicular to the direction of power change. The at least one conductor track in the first section can be arranged relative to the multiple conductor tracks.

[0052] 25 conductor tracks in the second region have different cross-sections. The respective cross-section of the conductor tracks in the second region can be smaller than the cross-section of at least one conductor track in the first region. The at least one conductor track in the first region can be thicker than the respective conductor tracks in the second region. Consequently, the at least

[0053] 30 generate a heating conductor in the first and second areas with different heat radiation outputs.

[0054] In a further preferred embodiment of the radiant heating system according to the invention, the heating conductor is located on at least one heating element and / or on the -07-2025-42839601 -Main ptpost-0016

[0055] 04-07-2025-42839601-Maup t Post -0016 PCT / DE2025 / 000074

[0056] A heat-conducting layer is arranged on the radiating surface. The heat-conducting layer can be in the form of a film. The heat-conducting layer can comprise copper and / or aluminum. The heat-conducting layer can comprise carbon nanotubes (CNTs). The heat-conducting layer can comprise metal.

[0057] 5. The thermally conductive layer can comprise alloys, plastics, and / or a composite material. The thermally conductive layer can comprise carbon. The thermally conductive layer can comprise ceramics. The thermally conductive layer can have a comparatively high thermal conductivity. This is achieved by having at least one heating conductor and / or a radiating surface on it.

[0058] With a heat-conducting layer arranged in 10, heat radiation is comparatively homogeneous along the radiating surface. Consequently, the deviations in the area-specific heat radiation power along the radiating surface are reduced or minimized. Thus, the area-specific heat radiation powers along the radiating surface exhibit similar,

[0059] 15 or the same values.

[0060] In another preferred embodiment of the radiant heating system according to the invention, the heat-conducting layer has a cross-section that varies in the direction of power change. The cross-section of the heat-conducting layer can increase in the direction of power change or

[0061] 20 decrease. The cross-section of the heat-conducting layer can have a width and / or depth. The heat-conducting layer can have a raised and / or recessed area along the direction of power change. The heat-conducting layer can have varying cross-sections in the direction of power change due to varying material deposition in different areas.

[0062] 25. The thermal conductivity layer can have a triangular and / or trapezoidal cross-section in the direction of power change. Due to locally varying material layers, the thermal conductivity layer can have a cross-section that varies in the direction of power change. The thermal conductivity layer can have locally varying cross-sections.

[0063] 30 materials are included and consequently have a cross-section that varies in the direction of power change. Because the heat-conducting layer has a cross-section that varies in the direction of power change, the following changes occur: -07-2025-42839601 -Main post-0017

[0064] 04- 07-2025-42839601 -Hau P t Ps § t -0017 PCT / DE2025 / 000074

[0065] - 8 - the heat emission power of the heating conductor sections of at least one heating conductor in the direction of power change is multi-stage or continuous.

[0066] In another preferred embodiment of the radiant heating system according to the invention, a first heating path runs along a first

[0067] 5. Radiation area of ​​the radiating surface and a second heating path along a second radiation area of ​​the radiating surface, wherein different area-specific heat radiation outputs can be generated in the first and the second radiation area. Because of the different radiation outputs in the first and the second radiation area

[0068] Ten area-specific heat radiation outputs can be generated, and multi-stage or continuously changing heat radiation outputs can be generated along the radiation surface in one direction of power change. The first and second radiation zones are spaced apart from each other. The first radiation zone and / or the second radiation zone can

[0069] 15. Covered by a cover film. The cover films of the first and second radiation areas can be different colors. The first heating path and / or the second heating path can be arranged on a carrier film. The carrier films of the first and second heating paths can be different colors. The first and / or second heating path can be part of

[0070] 20. One or more printed circuit boards. The one or more printed circuit boards may have at least one marking. The one or more printed circuit boards may have at least one raised area. The differently colored design of the cover films, the differently colored design of the carrier films, the marking of the one or more printed circuit boards and / or the

[0071] 25 At least one removal of the one or more circuit boards can indicate the alignment of the radiant heating or components of the radiant heating that is necessary during assembly.

[0072] In a further preferred embodiment of the radiant heating system according to the invention, the first and second heating paths are electrically

[0073] 30 interconnected or separate heating paths. The two electrically interconnected heating paths are electrically connected to each other. The current supply to the first and second heating paths can be controlled by -07-2025-42839601 -Hau ptpost-0018

[0074] 04-07-2025-42839601 -H au PPOS -0018 PCT / DE2025 / 000074

[0075] - 9 - the same voltage source or current source. The first and second heating paths can be powered by different voltage sources or current sources. The first heating path can be part of a first circuit. The second heating path can

[0076] 5. Be part of a second circuit. The first and second heating paths can be parts of the same circuit.

[0077] In another embodiment of the radiant heating system according to the invention, the first and second heating paths have different electrical resistances. The electrical resistances comprise resistance values.

[0078] 10. Because the first and second heating paths have different electrical resistances, they have different area-specific heat radiation powers. They also have different electrical conductivities.

[0079] 15 different thermal conductivities. The first and second heating paths comprise different materials. The first and second heating paths have different cross-sections. The first and second heating paths can each comprise metal. The first and second heating paths can each comprise an alloy, with the alloy of the first heating path being...

[0080] The composition of the first heating path may differ from that of the second heating path. The conductor tracks of the first heating path may be wider than those of the second heating path. The conductor tracks of the first heating path may have a larger or smaller cross-section than those of the second heating path.

[0081] 25 In a further embodiment of the radiant heating system according to the invention, the multiple heating paths comprise at least three electrical poles. The multiple heating paths comprise at least two pole pairs. A pole pair comprises two poles. Two pole pairs can comprise three or four poles. If the multiple heating paths comprise two pole pairs, the first of the two pole pairs can be connected to a first

[0082] 30 Voltage source, or current source, and the second of the two pole pairs at a second voltage source, or current source, -07-2025-42839601 -Hau ptpost-0019 04~07-2Ü25-42839601-HauP*P OSH3019 PCT / DE2025 / 000074 is connected. Different electrical voltages may be present at the at least two pole pairs.

[0083] In a preferred embodiment of the radiant heating system according to the invention, at least one electrical pole is switchable. The at least one switchable electrical pole can be activated. This at least one switchable electrical pole can be activated if the temperature in at least one radiation zone does not correspond to the set temperature. The at least one electrical pole can be switched depending on the situation and / or application. Because at least one electrical pole is switchable, an additional heating path can be activated. Consequently, the additional heating path can be activated or deactivated. Because at least one electrical pole is switchable, an additional voltage source or current source can be activated.Because at least one electrical pole is switchable, the surface-specific heat output of the radiant heating system can be increased or decreased depending on the situation. The switchable electrical pole can be activated by a control device.

[0084] In a further embodiment, the radiant heating system according to the invention comprises at least one temperature sensor by means of which the temperature in a detection area of ​​the radiating surface can be determined.

[0085] The radiant heater can include a first and a second temperature sensor. The first temperature sensor can be located in a first detection zone, and the second temperature sensor can be located in a second detection zone. The first and second detection zones are spaced 25 mm apart. If the radiant heater is positioned upright or at an angle during operation, the first detection zone can be located above the second detection zone. Consequently, the first

[0086] The temperature sensor should be located above the second temperature sensor.

[0087] In another preferred embodiment of the radiant heater according to the invention, a first temperature sensor is arranged in a detection area of ​​a first radiating surface and a second temperature sensor is arranged in a detection area of ​​a second radiating surface. The first and -07-2025-42839601-Main-Post-0020

[0088] 04-07-2025-42839601 -Hau P t Pcs -t -0020 PCT / DE2025 / 000074 The second radiating surface comprises different radiant powers. In particular, the first and second radiating surfaces comprise different area-specific heat radiation powers along the radiating surface. A second heating path can run along the second radiating surface. The first and second heating paths can be electrically connected or separate. The current applied to the first and / or second heating path can be varied depending on the signal from the temperature sensor. Consequently, the first and second heating paths can comprise different area-specific heat radiation powers. Thus, the heat radiation emitted by the first and second radiating surfaces each has different heat radiation powers. Alternatively, the radiant heater can include a temperature sensor.One temperature sensor can be located in the first radiating surface. Based on input variables in combination with a predictive model, inferences can be drawn about the temperature in the second radiating surface. The input variables can include the measured value from the one temperature sensor. The input variables can include information about the current flow to the first and / or second heating path. The input variables can include the settings of a control unit that controls the current flow to the first and / or second heating path. The predictive model can include a mathematical model and / or be based on known physical relationships regarding heat transfer or heat distribution. The predictive model can take into account information about the material thickness and / or layer thickness of the radiant heater or the radiating surface. The predictive model can include a simplified model.

[0089] In another preferred embodiment of the radiant heater according to the invention, the radiating surface is arranged inclined at an angle to a horizontal plane during operation. The radiant heater is mounted for application-specific operation. If the

[0090] If radiant heating is operated in a vehicle, it is used in

[0091] The radiant heater is installed in the vehicle interior. It can be used in particular -07-2025-42839601-Hauptpost-0021 “

[0092] 04-07-202b-428 S601-HauP't Pos ■t-u021 PCT / DE2025 / 000074

[0093] - 12 - be mounted upright or inclined in the vehicle interior trim. For example, when operating the radiant heater as a seat heater, the radiant heater can be mounted in the backrest of a vehicle seat. Consequently, the radiant heater is mounted upright or inclined during operation.

[0094] 5 arranged. During operation, the radiant heater is energized, so that at least one radiating surface of the radiant heater emits heat radiation.

[0095] In a further preferred embodiment of the radiant heating system according to the invention, the first and second temperature sensors are arranged at different heights during operation. The first temperature sensor can be located above the second temperature sensor. The first and second temperature sensors can be arranged side by side. The first and / or second temperature sensor can be a thermistor, in particular an NTC resistor or NTC thermistor, or a negative temperature coefficient thermistor.

[0096] 15. In particular, a PTC resistor or PTC thermistor. The first and second temperature sensors may comprise metal, in particular a metal layer, and / or carbon, in particular a carbon layer. The first and second temperature sensors may comprise the same materials. The first and second temperature sensors may have different designs.

[0097] 20 The first temperature sensor may be set up to measure a different temperature range than the second temperature sensor.

[0098] In a further preferred embodiment of the radiant heating system according to the invention, the heat radiation output, which changes in multiple stages or continuously in the direction of power change, can be generated by changing the electrical voltage and / or current of a power supply unit. In at least one radiation zone, temperature, heat flow, and / or power consumption can be controlled separately. The power supply unit comprises a voltage source or current source. The change in electrical voltage

[0099] 30 and / or the current strength of the power supply device can be controlled by a control unit. The -07-2025-42839601-Main-Post-0022

[0100] 04“07-2025-42839601-HauPiPQs -0022 PCT / DE2025 / 000074

[0101] - 13 -

[0102] The power supply device can generate alternating voltage, or alternating current, or direct voltage, or direct current.

[0103] In one embodiment, the radiant heating system according to the invention comprises a control device for controlling the current supply to at least one

[0104] 5 heating conductor of one or more heating paths, wherein the control device is preferably configured to energize the at least one heating conductor in such a way that the same target temperature is established in the first and second radiating surfaces. By the fact that the control device is preferably configured to energize the at least one

[0105] By energizing 10 heating conductors such that the same target temperature is established in the first and second radiating surfaces, a uniform or even heat distribution can be generated in the first and second radiating surfaces. Consequently, the first and second radiating surfaces can emit heat radiation with the same area-specific heat radiation power.

[0106] 15 emit.

[0107] The problem underlying the invention is further solved by a vehicle seat according to the invention of the type mentioned at the outset, wherein the radiant heating is designed according to one of the preceding embodiments. Regarding the advantages and modifications of the invention

[0108] In section 20, the advantages and modifications of the radiant heating system according to the invention are thus referred to. The radiant heating system can be arranged in the seat surface and / or backrest of the vehicle seat. The position of the seat surface and / or backrest of the vehicle seat can be varied, in particular its spatial orientation. Thus,

[0109] 25. The inclination of the seat surface and / or backrest of the vehicle seat can each be varied. Consequently, the spatial orientation or inclination of the radiant heating element located in the seat surface or backrest of the vehicle seat can be varied.

[0110] 30 Furthermore, the problem underlying the invention is solved by a heating panel according to the invention, wherein the radiant heating system according to the invention is designed according to one of the preceding embodiments -07-2025-42839601-Main Post-0023

[0111] 04-07-2025-42838601-HäuP t Pos *-0023 PCT / DE2025 / 000074

[0112] - 14 - is. With regard to the advantages and modifications of the heating panel according to the invention, reference is therefore made to the advantages and modifications of the radiant heating system according to the invention. The heating panel can be mounted in a vehicle interior. The heating panel can be attached to and / or located under the

[0113] 5. The heating panel may be arranged in the interior trim of a vehicle. It may be mounted flat, inclined, or upright on and / or beneath the interior trim of the vehicle. The heating panel may be configured to heat the interiors of buildings. It may be mounted flat, inclined, or upright within building interiors. The radiant heater may be a component of a catalytic converter. The radiant heater may be configured to heat water and / or coolant.

[0114] The problem underlying the invention is further solved by an inventive method of the type mentioned at the outset, comprising the step of:

[0115] 15. Energizing one or more heating paths in such a way that different area-specific values ​​are generated along the radiation surface.

[0116] Heat radiation is generated. This is due to the fact that different area-specific heat radiations occur along the radiation surface.

[0117] Heat radiation output is generated in a uniform or

[0118] 20 uniform heat distribution of the radiating surface can be generated.

[0119] Preferably, the method is used to operate a radiant heating system according to one of the embodiments described above. With regard to the advantages and modifications of the method according to the invention, reference is therefore made to the advantages and modifications of the radiant heating system according to the invention.

[0120] Preferred embodiments of the invention are explained and described in more detail below with reference to the accompanying drawings. These show:

[0121] Fig. 1 shows a radiant heating system from the prior art in a

[0122] 30 perspective view; -07-2025-42839601-Main Post Office-0024

[0123] 04-07-2025-42839601 -Hau t os i -0024 PCT / DE2025 / 000074

[0124] - 15 -

[0125] Fig. 2 shows the conductor tracks of a radiant heater from the prior art and an embodiment of a radiant heater according to the invention in a schematic view;

[0126] Fig. 3 shows a prior art radiant heating system in a

[0127] 5 schematic view;

[0128] Fig. 4 shows another radiant heating system from the prior art in a schematic view;

[0129] Fig. 5 shows an embodiment of a radiant heating system according to the invention in a schematic view;

[0130] 10 Fig. 6 shows the altitude-dependent temperature behavior of the radiating surface and the surrounding air;

[0131] Fig. 7 shows another altitude-dependent temperature behavior of the

[0132] Radiating surface and the surrounding air;

[0133] Fig. 8 shows another altitude-dependent temperature behavior of the

[0134] Radiating surface and the surrounding air;

[0135] Fig. 9 shows a further embodiment of a device according to the invention.

[0136] Radiant heating in a schematic view;

[0137] Fig. 10 shows a further embodiment of a device according to the invention.

[0138] Radiant heating in a schematic view;

[0139] 20 Fig. 11 shows a further embodiment of a device according to the invention.

[0140] Radiant heating in a schematic view;

[0141] Fig. 12 shows a further embodiment of a device according to the invention.

[0142] Radiant heating in a schematic view;

[0143] Fig. 13 shows a further embodiment of a device according to the invention.

[0144] 25 Radiant heating in a schematic view; -07-2025-42839601-Main Post-0025

[0145] 04-07-2025-42833601 -HauP* Post-0025 PCT / DE2025 / 000074

[0146] - 16 -

[0147] Fig. 14 shows a further embodiment of a radiant heating system according to the invention in a schematic view;

[0148] Fig. 15 shows a further embodiment of a device according to the invention.

[0149] Radiant heating in a schematic view;

[0150] Fig. 16 shows a further embodiment of a device according to the invention.

[0151] Radiant heating in a schematic view;

[0152] Fig. 17 shows an embodiment of a heat-conducting layer of a radiant heater according to the invention in a schematic side view; Fig. 18 shows a further embodiment of a heat-conducting layer of a radiant heater according to the invention in a schematic side view;

[0153] Fig. 19 shows a further embodiment of a device according to the invention.

[0154] Radiant heating in a schematic view;

[0155] Fig. 20 shows a further embodiment of a device according to the invention.

[0156] Radiant heating in a schematic view;

[0157] Fig. 21 shows a further embodiment of a heat-conducting layer of a radiant heater according to the invention in a schematic side view;

[0158] Fig. 22 shows a further embodiment of a radiant heating system according to the invention in a schematic view;

[0159] Fig. 23 shows a further embodiment of a heat-conducting layer of a radiant heater according to the invention in a schematic side view; and

[0160] 25 Fig. 24 a block diagram of the interaction of the temperature sensors, the

[0161] Power supply units and the control unit. -07-2025-42839601 -Main Post Office-0026

[0162] 04-07-2025-42839601~HauP -t Pos i -0026 PCT / DE2025 / 000074

[0163] - 17 -

[0164] Fig. 1 shows a radiant heater 10 known from the prior art, which comprises a radiating surface 12. The radiant heater 10 is arranged at an angle and consequently along the inclined axis S. The inclined axis S is inclined relative to the vertical V and the horizontal H. The radiant heater 10 also includes a heating conductor 16.

[0165] The heating conductor 16 is arranged on the radiating surface 12. The heating conductor 16 comprises conductor tracks 20 arranged parallel to each other and running predominantly along the horizontal H.

[0166] Furthermore, the heating conductor 16 comprises a first and second electrical pole 24a, 24b. The first and second electrical poles 24a, 24b of the heating conductor 16 can be connected to a current-generating device. By energizing the first and second electrical poles 24a, 24b, an electric current flows through the heating conductor 16, and consequently the heating conductor 16 generates thermal radiation. The heating conductor 16, or rather the thermal radiation 15 generated by the heating conductor 16, heats the air located at the radiating surface 12.

[0167] The thermal radiation generated by the heating conductor 16 of the radiant heating system 10 known from the prior art heats the radiating surface 12 unevenly. The surrounding air, heated by the thermal radiation of the heating conductor 16, further heats the radiating surface 12. Because the heated surrounding air rises in the direction of the vertical V, the radiating area B1, which is located above the radiating area B2 in the direction of the vertical V, is heated more strongly by the heated surrounding air. Consequently, the radiating area B1 of the radiating surface 12 has areas with higher temperatures than the radiating area B2 of the radiating surface 12.

[0168] Therefore, there is a need for a radiant heating system that generates a uniform surface temperature across the entire surface area of ​​the radiant heating system.

[0169] Fig. 2 shows on the left a section of the conductor tracks 20 of the heating conductor 16, which are arranged parallel to each other 30 and run predominantly along the horizontal H, and which are shown in Fig. 1. On the -07-2025-42839601 -Main Post-0027

[0170] 04-Q7-202E-4283960 1 -Main Po S t -0027 PCT / DE2025 / 000074

[0171] - 18 - The right-hand side shows that in an embodiment according to the invention, the conductor tracks 20 arranged parallel to each other are arranged such that the conductor tracks 20 arranged parallel to each other run predominantly transversely to the horizontal, i.e., along the vertical V.

[0172] 5 of this arrangement of the parallel conductor tracks 20, the first and second radiation areas B1 , B2 of the radiation surface 12 are heated more uniformly by the heat radiation generated by the heating conductor 16.

[0173] Fig. 3 shows a radiation surface 12 of a radiant heater 10 from the

[0174] 10. State of the art, wherein the radiating surface 12 is located on the heating conductor 16 of the radiant heater 10. Consequently, the radiating surface 12 covers the heating conductor 16.

[0175] The radiant heater 10, or rather the radiating surface 12 of the radiant heater 10, is upright, or rather along the vertical V,

[0176] 15. The heating conductor 16 generates thermal radiation, which is emitted by the radiating surface 12. The emitted thermal radiation heats the surrounding air. The heated air rises along the flow direction F, or along the vertical V. As it rises, the air heats the radiating surface 12. The radiating surface 12 comprises a first

[0177] 20 radiation zone B1 and a second radiation zone B2. The first radiation zone B1 is located in the direction of the vertical V, or in the direction of the flow F, above the second radiation zone B2. Due to the rising air, the first radiation zone B1 is heated more strongly by the surrounding air than the second.

[0178] 25. Radiation area B2. Consequently, the first radiation area B1 has a higher temperature T than the second radiation area B2.

[0179] Consequently, a uniform surface temperature is not generated across the entire surface area of ​​the radiant heater.

[0180] Figures 4 and 5 each show a radiation surface 12, wherein the

[0181] The 30 emission surfaces 12 of Figs. 4 and 5 are designed and arranged analogously to each other. -07-2025-42839601-Main-Post-0028

[0182] 04-07- 2025-42839601-HauP 4 Pos t-0028 PCT / DE2025 / 000074

[0183] - 19 -

[0184] The radiating surfaces 12 are each arranged above and cover a heating conductor 16. Analogous to the conductor path shown on the left in Fig. 2, the heating conductor 16 in Fig. 4 predominantly has conductor tracks 20 which are arranged transversely to the vertical V, or flux direction F. Consequently, the radiating surface 12 has an inhomogeneous temperature distribution, with the temperature T of the radiating surface 12 increasing in the direction of the vertical V, or flux direction F. Analogous to the conductor path shown on the right in Fig. 2, the heating conductor 16 in Fig. 5 predominantly has conductor tracks 20 which are arranged parallel to the vertical V, or flux direction F. Consequently, the radiating surface 12 has a comparatively homogeneous temperature distribution T, particularly in the direction of the vertical V, or flux direction F.The radiating surface 12 therefore has an almost uniform temperature.

[0185] 15 Figures 6 to 8 each show characteristic curves indicating the temperature T of the air located at the radiating surface 12 and the temperature T of the radiating surface 12 as a function of the height Y. The characteristic curves include the first and second characteristic curves of the radiating surface KAI, KA2 as well as the first and second characteristic curves of the surrounding air Kn, KL2-

[0186] 20 Fig. 6 describes the temperature behavior of the radiating surface 12 shown in Fig. 4, or of the surrounding air.

[0187] Radiating surface 12 and includes the first characteristic curve of the

[0188] Radiating surface KAI and the first characteristic curve of the surrounding air Kn. The first characteristic curve of the radiating surface KAI shows that the temperature T of the radiating surface 12 increases with increasing height Y. The first characteristic curve of the radiating surface KAI has a linear profile. The first characteristic curve of the surrounding air Kn shows that the temperature T of the air located at the radiating surface 12 increases with increasing height Y. The first characteristic curve of the surrounding air Kn has a linear profile. The first characteristic curve of the surrounding air KLI has a steeper profile than the first characteristic curve of the radiating surface KAI. The first characteristic curve of the surrounding air -07-2025-42839601-Main Post Office-0029 04-07-2025-42839601-Main Post Office-0029 PCT / DE2025 / 000074

[0189] - 20 -

[0190] Air KLI intersects the axis for temperature T at a lower temperature value T than the first characteristic curve of the radiation surface KAI .

[0191] Fig. 7 describes the temperature behavior of the radiating surface 12 shown in Fig. 5, or of the surrounding air.

[0192] 5 radiation area 12, and includes the second characteristic curve of the

[0193] Radiating surface KA2 and the second characteristic curve of the surrounding air KL2. The second characteristic curve of the radiating surface KA2 shows that the temperature T of the radiating surface 12 increases only slightly as a function of the height Y, unlike the first characteristic curve of the radiating surface KAI in Fig. 6. The second

[0194] 10 Characteristic curve of air K L 2 shows that the temperature T of the radiating surface K A2, depending on the height Y, unlike the first characteristic curve of the air KLI in Fig. 6, increases only slightly. The second characteristic curve of the radiating surface KA2 and the second characteristic curve of the air KL2 run almost parallel to each other. The second characteristic curve of the radiating surface KA2 and the second characteristic curve of the air KL2

[0195] 15 run linearly.

[0196] Fig. 8 shows the first and second characteristic curves of air KLI, KL2 from Fig. 6 and Fig. 7. The second characteristic curve of air KL2 has a steeper slope than the first characteristic curve of air KL-I - The second characteristic curve of air KL2 has an almost vertical slope.

[0197] 20 Fig. 9 shows a radiant heater 10, which includes a radiating surface 12. On the radiating surface 12 is a heating path 14, which is formed by a heating conductor 16. The heating conductor 16 has several heating conductor sections 18a-18I. The heating conductor sections 18a-18I each extend along a horizontal line H. The horizontal line H runs perpendicular to the

[0198] 25. Power change direction L. The first temperature sensor 26a is located between heating conductor section 18b and heating conductor section 18c. The second temperature sensor 26b is located between heating conductor section 18g and heating conductor section 18h. The distance between each pair of adjacent heating conductor sections 18a-18l increases in the power change direction L.

[0199] 30 The increase in distance between adjacent heating conductor sections 18a-18l in the direction of power change L is continuous. The heating conductor 16 comprises a first and a second electrical pole 24a, 24b. -07-2025-42839601-Main-Post-0030 04-07“202E-42838601-Main-Post-P OS i-0030 PCT / DE2025 / 000074

[0200] - 21 -

[0201] Fig. 10 shows a radiant heater 10 comprising a radiating surface 12. A first and a second heating conductor 16a, 16b are arranged on the radiating surface 12. The second heating conductor 16b is located in a second heating conductor section 18b. The first heating conductor 16a extends both

[0202] 5 over the first and second heating conductor sections 18a, 18b. The first and second heating conductors 16a, 16b are configured separately. The first heating conductor 16a includes the first and second electrical poles 24a, 24b. The second heating conductor 16b includes the third and fourth electrical poles 24c, 24d. The first temperature sensor 26a is located in the first heating conductor section 18a.

[0203] 10. The second temperature sensor 26b is located in the second heating conductor section 18b. The radiant heating system comprises a first to fourth electrical pole 24a-24d. A first power supply unit is connected to electrical poles 24a and 24b. A second power supply unit is connected to electrical poles 24c and 24d. The first and second

[0204] The values ​​recorded by temperature sensors 26a and 26b are processed by a control unit. Based on these values, the control unit regulates the electrical voltage of the first and second power supply units. Consequently, the control unit regulates the power output of the first and second power supply units.

[0205] 20 which is connected to the electrical poles 24a, 24b and 24c, 24d.

[0206] Fig. 11 shows a radiant heater 10, which includes a radiating surface 12. The heating conductor 16 is located on the radiating surface. The heating conductor 16 comprises several heating conductor sections 18a-18h. The heating conductor includes the electrical poles 24a, 24b. The heating conductor sections 18a-18h

[0207] The 25 conductors each run perpendicular to the direction of power change L. The heating conductor sections 18a-18h have different cross-sections. The cross-sections of the heating conductor sections 18a-18h increase in the direction of power change L. The increase in cross-sections in the direction of power change is continuous. The heating conductor sections 18a-18h with

[0208] Sections 30 with a larger cross-section have a higher electrical resistance than the heating conductor sections 18a-18h with a smaller cross-section. Consequently, the heating conductor sections 18a-18h with a larger cross-section emit thermal radiation with lower heat emission power. -07-2025-42839601 -Main Post-0031 04-07-2025-42839601 -Main Post Pos t-0031 PCT / DE2025 / 000074

[0209] - 22 -

[0210] Fig. 12 shows a radiant heater 10, which includes a radiating surface 12. The heating conductor 16 located on the radiating surface 12 comprises a first and second heating path 14a, 14b. The heating conductor includes a first to third electrical pole 24a-24c. The first and third electrical pole 24a, 24c

[0211] 5 is part of the first heating path 14a. The second electrical pole 24b is part of the second heating path 14b. The second electrical pole 24b includes a switch. Consequently, the second heating path 14b is switchable. The second electrical pole 24b can be switched on by a control device depending on the situation. A control device can be separate from the

[0212] The second heating path 14b can be a radiant heating element or be configured separately from the radiant heating element 10. The control unit can activate the second heating path 14b depending on a signal from a temperature sensor.

[0213] Fig. 13 shows a radiant heater 10, which includes a radiating surface 12. The heating conductor 16 is arranged on the radiating surface 12.

[0214] Heating conductor 16 comprises a first to fourth heating conductor section 18a-18d. In the first, third, and fourth heating conductor sections 18a, 18c, 18d, the heating conductor 16 runs perpendicular to the direction of power change L. In the second heating conductor section 18b, the heating conductor 16 runs mainly along the direction of power change L. In the second heating conductor section 18b, the

[0215] The heating conductor 16 has a cross-section that increases in the direction of power change L. Consequently, in the second heating conductor section 18b, the heating conductor 16 generates thermal radiation with a surface-specific heat radiation power that decreases in the direction of power change L.

[0216] Fig. 14 shows a radiant heater 10, which has a radiating surface 12.

[0217] 25. The heating conductor 16 is arranged on the radiating surface 12. The heating conductor 16 comprises three heating conductor sections 18a-18c. In the first and third heating conductor sections 18a, 18c, the heating conductor 16 comprises one conductor track 20. In the second heating conductor section 18b, the heating conductor 16 comprises three conductor tracks 20. Between the first heating conductor section 18a and the second

[0218] The first transition zone Ü1 is located in heating conductor section 18b. The second transition zone Ü2 is located between the second heating conductor section 18b and the third heating conductor section 18c. The first transition zone Ü1 is located in -07-2025-42839601 -Main Post-0032

[0219] 04-07-2025-42833601-HauPiPos -0032 PCT / DE2025 / 000074

[0220] - 23 - or the second transition area Ü2, the heating conductor 16 comprising one conductor track 20 divides into a heating conductor 16 comprising three conductor tracks 20. The three conductor tracks 20 of the heating conductor 16 each have a curved section in the second heating conductor section 18b.

[0221] Section 5. Because the heating conductor 16 is divided into three conductor tracks 20 in the second heating conductor section 18b, the heating conductor 16 generates thermal radiation with a higher area-specific heat radiation power in the second heating conductor section 18b than in the first heating conductor section 18a, or the third heating conductor section 18c.

[0222] 10 Fig. 15 shows a radiant heater 10, which includes a radiating surface 12. A heating conductor 16 is located on the radiating surface 12. A heat-conducting layer 22 is located on the heating conductor 16. The heat-conducting layer 22 is formed as a film. The heat-conducting layer 22 comprises graphite. The heat-conducting layer 22 has a high thermal conductivity.

[0223] 15. The thermal conductivity layer 22 exhibits an anisotropic thermal conductivity. The thermal conductivity layer 22 has a higher thermal conductivity in the direction of power change L than perpendicular to the direction of power change L.

[0224] Fig. 16 shows the radiating surface 12 of the radiant heater 10, with the heating conductor 16 located on the radiating surface 12. The heating conductor 16 is

[0225] 20 is bonded to the radiating surface 12. The heating conductor 16 is glued to the radiating surface 12. The heating conductor 16 can be energized by connecting an energizing device to the electrical poles 24a, 24b of the heating conductor 16. The radiating surface 12 can be covered by a heat-conducting layer 22. The [missing information] located on the radiating surface 12

[0226] 25 The thermal conductivity layer 22 can be designed according to Fig. 17 or Fig. 18.

[0227] Fig. 17 shows a side view of the radiant heater 10 shown in Fig. 16. The heat-conducting layer 22 is bonded to the radiating surface 12. The heat-conducting layer 22 has a cross-section that increases in the direction of power change L. The cross-section

[0228] The area of ​​the heat-conducting layer 22 increases continuously, or linearly, in the direction of power change L. The heat transferred to the radiant heater 10, or the -07-2025-42839601-Hauptpost-0033, by the surrounding and rising air.

[0229] 04“07”2025~42839601“Main PQ S ^“0033 PCT / DE2025 / 000074

[0230] - 24 -

[0231] The heat transferred through the thermally conductive layer 22 is distributed uniformly. Consequently, the thermally conductive layer 22 has a uniform or consistent temperature T in the direction of power change L. The thermally conductive layer 22 comprises metals, in particular

[0232] 5 Aluminium.

[0233] Fig. 18 shows a side view of the radiant heater 10 of Fig. 16. The heat-conducting layer 22 is bonded to the radiating surface 12 of the radiant heater 10. The heat-conducting layer 22 is designed as a textile. The heat-conducting layer 22 consists of a first heat-conducting layer 22a and a

[0234] 10. The second heat-conducting layer 22b. The first heat-conducting layer 22a is located above the second heat-conducting layer 22b in the direction of power change L. The first heat-conducting layer 22a has a larger cross-section than the second heat-conducting layer 22b. Consequently, the heat-conducting layer 22 exhibits a stepwise increase in cross-section in the direction of power change L.

[0235] 15 Fig. 19 shows the radiating surface 12 of the radiant heater 10. Surrounding air is heated by the thermal radiation emitted from the radiating surface 12. The heated air rises along the flow direction F. The flow direction F is parallel to the vertical V.

[0236] Fig. 20 shows the radiation surface 12, which has protrusions 28.

[0237] 20 elevations 28 run in a straight line and parallel to each other. The elevations 28 are arranged inclined to the vertical V. Between each pair of adjacent elevations 28 there is a depression 30. The depressions 30 run parallel to each other. The depressions 30 are oriented inclined to the vertical V. Air which is drawn through the

[0238] 25. When the emitted heat radiation is heated by the radiating surface 12, it does not flow in the direction F1, which runs parallel to the vertical V, due to the protrusions 28 and depressions 30 of the radiating surface 12, but rather along the direction F2, which is inclined to the vertical. The heated air thus flows through the depressions 30. During the

[0239] 30 As the air flows through the recesses 30, it is cooled by transferring heat to the radiating surface 12. Due to the inclined flow direction F2 relative to the vertical V, the -07-2025-42839601-Hauptpost-0034 04- 07-2025- 2839601 -H au P t Po s -t -0034 P CT / D E2025 / 000074

[0240] The heat from the heated air is transferred evenly to the radiating surface 12. Thus, the radiating surface 12 exhibits an almost homogeneous temperature distribution.

[0241] Fig. 21 shows a side view of the radiant heater 10. Unlike in Fig. 20, it is not the radiating surface 12, but a heat-conducting layer 22 that has protrusions 28 and depressions 30. The depressions 30 of the heat-conducting layer 22 were created by an etching process.

[0242] The heat-conducting layer 22 is bonded to the radiating surface 12 over its entire area. The protrusions 28 have a rounded surface. The recesses 30 have different widths.

[0243] Fig. 22 shows a top view of the radiant heater 10. The radiant heater 10 comprises the radiating surface 12, on which the heat-conducting layer 22 is arranged. The heat-conducting layer 22 has protrusions 28a, 28b and depressions 30a, 30b on its surface. Between each pair of protrusions 28a there is a depression 30a. Between each pair of protrusions 28b there is a depression 30b. The protrusions 28a run parallel to each other. The protrusions 28a run along the vertical V. Consequently, the depressions 30a run parallel to the vertical V. The protrusions 28b are inclined relative to the vertical V, or rather relative to the protrusions 28a. The depressions 30b are inclined relative to the vertical V. A portion of the air heated by the radiating surface 12 passes through the depressions 30a as it rises in the direction of the vertical V.Cooler air, which is part of the room air, partially passes through the recesses 30b along the flow directions F2 or F3. The rising heated air flows along the flow direction F1 through the recesses 30a. The cooler air flowing along the F2 and F3 directions cools the heated air rising along the F1 direction. Consequently, the radiating surface 12 is heated uniformly by the surrounding air.

[0244] 30 Fig. 23 shows a side view of the radiant heater 10 and the heat-conducting layer 22 located on the radiant heater 10. The heat-conducting layer 22 is glued to the radiating surface 12 of the radiant heater 10. [At the -07-2025-42839601 -Main Post-0035 04-07-2025-42839601-HaüP iPcs t-0035 PCT / DE2025 / 000074]

[0245] On the side of the radiating surface 12 facing away from the heat-conducting layer 22, the heat-conducting layer 22 has protrusions 28a, 28b. The protrusions 28a and 28b are shaped differently. The protrusions 28a are cuboid in shape. The protrusions 28b have a partially elliptical shape. Due to the

[0246] The five different formations of the elevations 28a, 28b include air rising along the heat-conducting layer 22, with different flow directions F1-F3. Flow direction F1 runs parallel to the vertical V. Flow direction F2 is inclined relative to the vertical V and thus inclined relative to flow direction F1. Flow direction F3 includes air vortices, or

[0247] 10. A vortex. Air moving along the flow direction F3, or as an air vortex, mixes with the surrounding air and is thus cooled. Consequently, the surface of the heat-conducting layer 22 is heated uniformly in the direction of the vertical V, and the temperature of the heat-conducting layer 22 is uniformly distributed in the direction of the vertical V.

[0248] 15 Fig. 24 shows a block diagram illustrating the interaction of the temperature sensors 26a, 26b, the current supply units and the

[0249] The control unit shown in Fig. 10 is described. The setpoint temperature (step C1) of the radiant heater 10 is set in the control unit. The values ​​of the first and second temperature sensors are determined in each step (steps

[0250] 20 C2, C3). Then an offset is added in each case (steps C2.1, C3.1). Subsequently, it is checked whether the target temperature has been reached (steps C2.2, C3.2). If the target temperature has not been reached, the power of the first or second current-generating unit is increased (steps C2.3, C3.3). If the target temperature has been reached, the power of the first,

[0251] 25 or second, current unit reduced (steps C2.4, C3.4). The determination of the value of the first temperature sensor (step C2) and the determination of the value of the second temperature sensor (step C3) as well as the subsequent steps dependent on them are carried out independently of each other.

[0252] In a further step, it is checked whether the determined value of the first and / or

[0253] 30 second temperature sensor is above a critical value (step C4). The critical value can be chosen so that a user does not injure or burn themselves when touching the radiant heater, -07-2025-42839601 -Main Post-0036 04-Ö7~2025-42839801-HauP t©os t-0036 PCT / DE2025 / 000074

[0254] - 27 - can, as long as the temperature of the radiant heater is below the critical value. If the value of the first and / or second temperature sensor is below the critical value, no further action is taken and the power of the first and second power supply units remains.

[0255] 5 unchanged (step C4.1). If the value of the first and / or second temperature sensor is above the critical value, the power of the first and second power supply unit is reduced to zero (step C4.2).

[0256] The invention may also relate to: a radiant heater (10), with at least one heating surface (12),

[0257] 10 - definitely

[0258] - to a release of heat radiation through air and

[0259] - to an operation with the heating surface inclined to a horizontal,

[0260] - equipped with ohmic heating conductor material,

[0261] - which is arranged at least in sections along the heating surface, and

[0262] - which at least forms a current path along the heating surface, whereby the heating surface has a heating power distribution that increases at least section by section in the direction of gravity."

[0263] 20

[0264] - 28 -

[0265] Reference mark

[0266] 10 Radiant heating

[0267] 12 Radiating surface

[0268] 5 14, 14a, 14b Heating path

[0269] 16, 16a, 16b Heating conductor

[0270] 18, 18a-18l Heating conductor section

[0271] 20 conductor track

[0272] 22, 22a, 22b Thermal conductivity layer io 24, 24a-24d Electrical pole

[0273] 26, 26a, 26b Temperature sensor

[0274] 28, 28a, 28b Survey

[0275] 30, 30a, 30b In-depth study

[0276] 15 S Slanted Axis

[0277] L Direction of power change

[0278] A conductor spacing

[0279] Q cross-section

[0280] B, B1, B2 radiation range

[0281] 20D detection range

[0282] H Horizontal

[0283] V Vertical

[0284] F, F1-F3 Flow direction

[0285] Temperature

[0286] 25 KAI , KA2 characteristic curve of the radiation surface

[0287] Kn, KL2 characteristic curve of the surrounding air

[0288] Y height

[0289] Ü1, Ü2 Transition area

[0290] 30 C1 Setting the target temperature

[0291] C2 Determination of the value of the first temperature sensor

[0292] C2.1 Adding an offset

[0293] C2.2 Check if target temperature has been reached -07-2025-42839601 -Main Post-0038

[0294] 04-07-2025-42839601 -Main Pos t-0038 PCT / DE2025 / 000074

[0295] C2.3 Increasing the power of the first power supply unit

[0296] C2.4 Reducing the power of the first power supply unit

[0297] C3 Determination of the value of the second temperature sensor

[0298] C3.1 Adding an offset

[0299] 5 C3.2 Check if the target temperature has been reached

[0300] C3.3 Increasing the power of the second power supply unit

[0301] C3.4 Reducing the power of the second power supply unit

[0302] C4 Check if the value of the first and / or second

[0303] The temperature sensor is above a critical value.

[0304] 10 C4.1 The power output of the first and second power supply units remains unchanged.

[0305] C4.2 The power output of the first and second power supply units is reduced to zero.

[0306] 15

Claims

-07-2025-42839601-Main Post Office-0040 04-07-2025-42839601 -Main Post Office -0040 PCT / D E2025 / 000074 - 1 - Claims 1. Radiant heating (10), with a radiating surface (12), along which one or more 5 heating paths (14, 14a, 14b) for generating radiant heat, wherein one or more heating paths (14, 14a, 14b) each comprise at least one heating conductor (16, 16a, 16b); characterized in that the at least one heating conductor (16, 16a, 16b) of one or more heating paths (14, 14a, 14b) is arranged and / or designed in such a way that different area-specific heating powers can be generated along the radiating surface (12) by energizing one or more heating paths (14, 14a, 14b). 15 2. Radiant heating system (10) according to claim 1, characterized in that the at least one heating conductor (16, 16a, 16b) of one or more heating paths (14, 14a, 14b) is arranged and / or designed such that by energizing one or more heating paths (14, 14a, 14b) a 20 Power change direction (L) multi-stage or continuously changing heat radiation powers can be generated along the radiation surface (12).

3. Radiant heating (10) according to claim 2, characterized in that the heat radiation powers, which change in multiple stages or continuously in the direction of power change (L), are varied by conductor spacings (A) between adjacent heating conductor sections (18, 18a-18I) of the at least one heating conductor (16, 30 16a, 16b) are producible. -07-2025-42839601-Hauptpost-0041 04- 07-2025- 42839601-rh P t Pos i -0041 PCT / DE2025 / 000074 4. Radiant heating (10) according to claim 3, characterized in that the varying conductor spacings (A) of the at least one heating conductor (16, 16a, 16b) increase or decrease in the direction of power change (L). 5 5. Radiant heating (10) according to one of claims 2 to 4, characterized in that the heat radiation powers which change in multiple stages or continuously in the direction of power change (L) can be generated by a number of heating conductors (16, 16a, 16b) which vary in the direction of power change (L).

6. Radiant heating (10) according to one of claims 2 to 5, characterized in that the heat radiation powers which change in multiple stages or continuously in the direction of power change (L) can be generated by heating conductor sections (18, 18a-18I) of the at least one heating conductor (16, 16a, 16b) in which the at least one heating conductor (16, 16a, 16b) has cross-sections (Q) that vary in the direction of power change (L).

7. Radiant heating (10) according to claim 6, characterized in that the varying cross-sections (Q) of the at least one heating conductor (16, 16a, 16b) increase or decrease in the direction of power change (L).

8. Radiant heating (10) according to claim 6 or 7, characterized in that the heating conductor sections (18, 18a-18I) of the heating conductor (16, 16a, 16b) run transversely and / or parallel to the direction of power change (L). 30 9. Radiant heating (10) according to one of claims 2 to 8, characterized in that the heat radiation powers, which change in multiple stages or continuously in the direction of power change (L), are distributed by heating conductor sections (18, 18a-18I) of the at least one heating conductor (16, 16a, 16b), in which the at least one -07-2025-42839601-MainPost-0042 04-07-2025-42839601-MainPost OS t-0042 PCT / DE2025 / 000074 - 3 - Heating conductor (16, 16a, 16b) is divided into several conductor tracks (20), can be generated.

10. Radiant heating (10) according to one of the preceding claims, 5 characterized in that a heat-conducting layer (22, 22a, 22b) is arranged on the at least one heating conductor (16, 16a, 16b) and / or on the radiating surface (12).

11. Radiant heating (10) according to claim 10, characterized in that the heat-conducting layer (22, 22a, 22b) has a cross-section (Q) that varies in the direction of power change (L).

12. Radiant heating (10) according to one of the preceding claims, characterized in that a first heating path (14, 14a, 14b) along 15 of a first radiation area (B, B1 , B2) of the radiation surface (12) and a second heating path (14, 14a, 14b) runs along a second radiation area (B, B1 , B2) of the radiation surface (12), wherein the first and the second radiation area (B, B1 , B2) have different area-specific properties. 20 heat radiation outputs can be generated.

13. Radiant heating (10) according to claim 12, characterized in that the first and the second heating path (14, 14a, 14b) are electrically connected or separate from each other.

14. Radiant heating (10) according to claim 12 or 13, characterized in that the first and the second heating path (14, 14a, 14b) have different electrical resistances. 30 15. Radiant heating (10) according to one of claims 12 to 14, characterized in that the multiple heating paths (14, 14a, 14b) comprise at least three electrical poles (24, 24a-24d). -07-2025-42839601-Main Post Office-0043 , „ , 04-07-2025-42833801 -HauPi ss t -00^3 o PCT / DE2025 / 000074 - 4 - 16. Radiant heating (10) according to claim 15, characterized in that at least one electrical pole (24, 24a-24d) is switchable. 5 17. Radiant heating (10) according to one of the preceding claims, characterized by at least one temperature sensor (26, 26a, 26b) by means of which the temperature (T) in a detection area (D) of the radiating surface (12) can be determined.

18. Radiant heating system (10) according to claim 17, characterized in that a first temperature sensor (26, 26a, 26b) is arranged in a detection area (D) of a first radiating surface (12) and a second temperature sensor (26, 26a, 26b) is arranged in a detection area (D) of a second radiating surface (12). 15 is.

19. Radiant heating (10) according to one of the preceding claims, characterized in that the radiating surface (12) is arranged inclined relative to a horizontal (H) during operation. 20 20. Radiant heating (10) according to claims 18 and 19, characterized in that the first and the second temperature sensor (26, 26a, 26b) are arranged at different heights during operation.

21. Radiant heating (10) according to one of the preceding claims, characterized in that the heat radiation powers, which change in multiple stages or continuously in the direction of power change (L), are changed by changing the electrical voltage 30 and / or current strength of a power supply device can be generated.

22. Radiant heating (10) according to one of claims 18 to 21, characterized by a control device for controlling the current supply to the at least one heating conductor (16, 16a, 16b) of one or -07-2025-42839601 -Main Post Office-0044 04-07-2025-42839601-Hau P Pa s -0044 PCT / DE2025 / 000074 - 5 - of the several heating paths (14, 14a, 14b), wherein the control device is preferably configured to energize the at least one heating conductor (16, 16a, 16b) in such a way that the same target temperature is established in the first and second radiating surface (12). 5 23. Vehicle seat with a radiant heater (10), characterized in that the radiant heater (10) is designed according to one of the preceding claims. 10 24. Heating panel with a radiant heater (10), characterized in that the radiant heater (10) is designed according to one of claims 1 to 22. 15 25. Method for operating a radiant heater (10), in particular a radiant heater (10) according to one of claims 1 to 22, with a radiating surface (12) along which one or more heating paths (14, 14a, 14b) run for generating radiant heat, wherein one 20 or the multiple heating paths (14, 14a, 14b) each comprise at least one heating conductor (16, 16a, 16b), characterized by the step: Energizing one or more heating paths (14, 14a, 14b) such that different area-specific heat radiation powers are generated along the radiation surface (12). 25 will be born.

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