Warmer and smoking arrangement with this

Abstract

The invention relates to a stove (01) comprising a base plate (02), an upper rim (05), and a casing wall (04) extending between the base plate (02) and the upper rim (05). The base plate and the casing wall enclose a combustion chamber (09) suitable for receiving a fuel element (10). Furthermore, at least three air supply channels (14) are provided, distributed around the circumference of the casing wall (04), which penetrate the casing wall (04) and open into the combustion chamber (09) with a flow cross-section. At least three outlet areas (15) are distributed around the circumference of the casing wall (04) and are formed as recesses in the outer surface of the casing wall with an outlet cross-section. The end of each air supply channel (14) facing away from the combustion chamber (09) is open in the base area (16) of an outlet area. The cross-sectional area of ​​the outlet is at least twice as large as the flow cross-section of the air supply channel opened there (14).Several circumferentially spaced mounting elements, onto which a heating plate (12) can be placed, are arranged at the upper edge. The invention also relates to a smoking arrangement consisting of a stove (01) and a heating plate (12) which can be placed on the stove.

Description

[0001] The invention relates to a teapot warmer and an incense burner assembly comprising such a teapot warmer. Teapot warmers are partially open containers that can be used, for example, as a base for keeping beverage containers warm. Other heated elements can also be placed on teapot warmers, such as a heating plate on which materials can be placed to release fragrances or essential oils. Teapot warmers can be made of various materials and have an internal combustion chamber large enough to accommodate a fuel element as a heat source, such as a tea light or a piece of coal.

[0002] DE 86 33 973 U1 describes a tealight warmer with a base for holding a candle, a holding surface, and a casing extending between the base and the holding surface. An opening in the casing extends from the base to the holding surface and extends over an arc segment of preferably 120° to 240°. The tealight warmer can be molded in one piece from ceramic.

[0003] US 2022 / 0133084 A1 discloses a beverage warmer in the form of a teapot warmer made of ceramic. The beverage warmer comprises a base, a vessel support surface, and a ceramic wall located between the base and the vessel support surface. The ceramic wall and the vessel support surface define a window.

[0004] KR 10 1 488 638 B1 shows a food and beverage warmer that does not require a power supply. The square warmer comprises a closed base with an air inlet on one side and an air outlet on the other side. The air inlet and outlet are arranged perpendicular to each other and intersect. Furthermore, the warmer comprises a circular, recessed insertion section located in the center, into which a heat supply element can be inserted in a central position.

[0005] DE 951 530 B describes a food warmer comprising a container with air vents, a heating device, and a support plate for holding food containers. The support plate is loosely mounted on the container. The container has a container wall that encloses the heating device, e.g., heating lights. The support plate and the container wall form a downwardly open support body that sits on a plate-like base plate. The heating device is arranged on the base plate. Edge cutouts serve as air inlets on the lower edge of the support body.

[0006] Larger teapot warmers are primarily used as teapot warmers and usually remain in one place during use. Moving them from one location to another is dangerous when the heat source is lit and requires extreme caution. Smaller teapot warmers are used as cup warmers and, thanks to their smaller size, can be moved with one hand. Smaller teapot warmers are also used today to place a heating pad on which to warm, usually solid, scented materials to diffuse pleasant fragrances or essential oils. Such designs, also called scent warmers, are often carried by users to different locations, for example, to diffuse wafts of incense, pine needles, or scented wood throughout several rooms of a home (also known as fumigation).Known problems with such applications include, depending on the design, that when carrying the warmer around, the combustion source may be extinguished due to insufficient oxygen supply or excessive airflow, that the user may get too close to the combustion source with their fingers and thus suffer burns, or that the heat supply to the material placed on the heating plate may no longer be sufficient to achieve the desired release of fragrance vapors.

[0007] One object of the invention is to avoid the aforementioned problems and to provide an improved warmer that allows both safe stationary and mobile use. Furthermore, the invention is intended to provide an incense burner assembly that utilizes such a warmer and, in particular, enables the safe heating of fragrance materials while carrying the incense burner with one hand.

[0008] These objects are achieved by a teapot warmer according to claim 1 and a smoking arrangement according to claim 13. Further developments of the invention are defined in the dependent claims.

[0009] A warmer according to the invention has at least one base plate with a standing surface on its underside. The standing surface runs essentially horizontally when the warmer is in use. Furthermore, the warmer has an upper edge that is vertically spaced from the base plate and preferably runs parallel to the base plate. A casing wall extends between the base plate and the upper edge. The base plate and the casing wall enclose a combustion chamber that is open at the top and is suitable for receiving a fuel element and is delimited at its open upper side by the upper edge. The base plate is preferably completely closed so that no liquids, for example liquefied wax, can escape downwards from the combustion chamber. The warmer has a plurality of circumferentially spaced-apart mounting elements on its upper side, onto which a heating plate or a container to be kept warm can be placed.The support elements preferably extend beyond the upper edge or are flush with it. The support elements are preferably formed by at least three support blocks arranged spaced apart from one another along a circumferential line.

[0010] The teapot warmer further comprises at least three air supply ducts distributed around the circumference of the casing wall, which penetrate the casing wall and open into the combustion chamber with a flow cross-section. The attachment elements are preferably arranged vertically above the air supply ducts. The air supply ducts are preferably designed as cylindrical tubes that extend through the casing wall. The air supply ducts end in the combustion chamber to supply combustion air and begin in at least three opening regions distributed around the circumference of the casing wall, which are formed as recesses in the outer surface of the casing wall with a opening cross-section. The air supply ducts preferably end at a level in the combustion chamber that is several millimeters above the base plate. This also has the advantage that fuel does not penetrate outwards through the air supply ducts, for example when liquefied wax from a tea light runs into the combustion chamber.

[0011] The outlet cross-section is at least twice the flow cross-section of the air supply duct opened there, preferably three to five times as large. Particularly preferably, the outlet areas extend vertically into the plane of the base.

[0012] According to a preferred embodiment, the base plate of the tealight warmer has a centrally located circular recess, the diameter of which is adapted to accommodate a tealight, thus preventing it from slipping sideways on the base plate. In this case, the tealight forms the heat source in the combustion chamber. Alternatively, a piece of coal, fuel paste, or other suitable fuel can also be used in the combustion chamber.

[0013] According to an advantageous embodiment, the shell wall has a varying wall thickness. This serves to ensure favorable weight distribution, allows for shapes that are easy for the user to grasp, and enables optimization of weight and stability. At its thickest points, the shell wall preferably has a thickness corresponding to 0.8 to 1.2 times the clear radius of the combustion chamber. The clear radius of the combustion chamber is particularly preferably selected in the range of 3 to 5 cm. The shell wall preferably has a thickness in the range of 2 cm to 4 cm.

[0014] The teapot warmer is preferably made from a single piece, in particular from a ceramic material, particularly preferably from granite ceramic, in which fine-grained granite flour is mixed into the raw material. The sintered ceramic is densely fired, chemically inert, offers little surface area for bacteria and odors to attack, and is easy to clean, for example with a soap solution or, if necessary, with weak acids and alkalis. By manufacturing it using a molding or casting technique, the thickness of the ceramic material can be kept relatively thin, thus keeping the teapot warmer overall lightweight. The ceramic material allows the teapot warmer to be used outdoors all year round, thanks to its high level of weather resistance. In use, the ceramic material offers the further advantage of even heat distribution at temperatures that are not too high, thus preventing burns or skin irritations for the user.Rather, the warmer invites the user to warm their hands when using the granite ceramic. Another advantage of the ceramic used is its impermeability and frost resistance, which prevents liquefied fuels from penetrating the material and allows the warmer to be used outdoors even at low temperatures. The warmer is preferably made of unglazed ceramic, with titanium oxide added to the raw ceramic mass during the manufacturing process. This creates a bactericidal surface.

[0015] According to a preferred embodiment, the warmer has a circular cross-section. Preferably, the air supply channels and the outlet areas are distributed at regular intervals along the casing wall. For good combustion performance, it is advantageous if the flow cross-section of the air supply channels is at least 15 mm. 2 , preferably at least 20 mm 2amounts.

[0016] Particularly preferably, the support elements are arranged as a vertical extension of the casing wall and protrude approximately 2 mm to 5 mm beyond the edge. This ensures that the attached elements are securely positioned. Furthermore, a gap remains between the bottom of the attached elements and the upper edge so that heat and combustion gases can be dissipated. Preferably, exactly three support elements are formed on the casing wall at regular intervals, each support element having an upper support surface that is inclined toward the combustion chamber, preferably at an angle of less than 45°. In this way, even heating plates that are almost flat or have a plate-like edge can be securely attached.

[0017] In an advantageous embodiment, the opening regions in the circumferential direction of the casing wall each have a width of at least 25 mm, preferably at least 30 mm. In a further developed embodiment, the base area of ​​the opening region in the area of ​​the air supply duct is set back by at least 10 mm from the outer surface of the casing wall.

[0018] The smoking assembly according to the invention consists of a warmer according to one of the aforementioned embodiments and also comprises a heating plate that can be placed on the warmer. The heating plate is dimensioned such that it does not protrude beyond the outer wall of the warmer. Preferably, the smoking assembly also comprises a clamp-like gripper that can be inserted into the area between the support blocks to grip the heating plate, even if it has become hot during use.

[0019] Further advantages and details of the invention will become apparent from the following description of a preferred embodiment, with reference to the drawings. They show: Fig. 1 a perspective view of an incense assembly with a warmer according to the invention, a heating plate and a tea light; Fig. 2 a perspective, partly sectioned view of the smoking arrangement according to Fig. 1.

[0020] The Fig. 1 and Fig. 2 show a simplified perspective view of a preferred embodiment of a teapot warmer 01 according to the invention, which is bowl-shaped in its basic form. The following description applies equally to both figures.

[0021] The teapot warmer 01 is formed in one piece from granite ceramic and has an outer diameter of approximately 13 cm at its upper end. It has a base plate 02 with a flat base surface 03 on its underside. The base plate 02 curves along its outer edge into a casing wall 04, which is largely closed around its circumference. The casing wall 04 ends at an upper edge 05, which runs parallel to the base surface 03.

[0022] Three support blocks 06 are integrally formed as support elements in the upper section of the casing wall 04. These support blocks are evenly distributed around the circumference of the warmer 01 and spaced from each other by recesses 07. The support blocks 06 and the recesses 07 each occupy an angular range of approximately 60°. The support blocks 06 protrude vertically approximately 3-6 mm beyond the upper edge 05. A circumferential groove 08, the bottom surface of which lies below the edge 05, runs radially between the upper edge 05 of the casing wall 04 and the support blocks 06.

[0023] Enclosed by the base plate 02 and the casing wall 04, a combustion chamber 09 is formed, into which, for example, a tea light 10 can be inserted as a heat source. The tea light 10 thus stands on the upper surface of the base plate 02, whereby a small recess 11 can be formed in this surface for improved lateral stability of the tea light 10. This positions the tea light 10 centrally in the combustion chamber 09.

[0024] The support blocks 06 are designed so that, for example, a heating plate 12 can be placed on them. The heating plate 12 is part of the incense assembly, but independent of the warmer 01. In alternative applications, the warmer 01 can also be used to heat other containers or elements. The heating plate 12 is heated by the burning tea light 10, so that temperatures arise, particularly in the central area of ​​the heating plate 12, which leads to the evaporation of components of the incense placed on it, such as incense grains 13. The combustion gases from the combustion chamber 09 are primarily discharged through the recesses 07, thus preventing sooting of the flame in the combustion chamber 09.

[0025] Furthermore, a stable and sufficient supply of combustion air is essential for good conditions in the combustion chamber 09. This is ensured by several air supply ducts 14, which, in the illustrated embodiment, extend through the casing wall 04 at at least three positions as horizontally running, cylindrical ducts or tubes. The air supply ducts 14 open with a flow cross-section of approximately 10 mm 2 up to 20 mm 2in the combustion chamber 09. The air supply ducts 14 are preferably evenly distributed around the circumference of the casing wall 04, preferably at an angular distance of 120° from one another. Alternatively, more than three air supply ducts 14 can be arranged. The end of the air supply ducts 14 facing away from the combustion chamber 09 each opens into an associated opening region 15, which is machined or formed as a recess in the casing wall 04. The opening cross-section of each opening region 15 is designed to be at least twice as large as the flow cross-section with which the air supply duct 14 opens into the combustion chamber 09. The air supply duct 14 thus opens into a base area 16 of the associated opening region 15. This base area 16 preferably runs vertically and thus parallel to the inside of the casing wall 04, which delimits the combustion chamber 09. The opening region 15 preferably extends to the base plate 02.The width of the opening area 15, measured in the circumferential direction of the casing wall 04, corresponds approximately to the width of a thumb or more. Therefore, when the warmer 01 is carried in the hand, the air supply to all air supply channels 14 will not be completely blocked, ensuring a sufficient supply of combustion air even in this state.

[0026] The air supply channels 14 run in a plane above the upper surface of the base plate 02, preferably 3 mm to 10 mm above the base plate 02. If, for example, liquid wax runs from the tea light 10 into the combustion chamber 09, it will cool there without first being able to escape through the air supply channels 14.

[0027] A nice side effect of combining the air supply ducts 14 with the mouthpieces 15 is that the light projected outward by the tealight 10 is shaped in a special way, thus creating an interesting shadow. This can be further enhanced by profiling the edges of the mouthpieces 15. Reference symbol 01 Teapot warmer 02 Base plate 03 Stand area 04 Shell wall 05 upper edge 06 Support blocks 07 Recesses between the support blocks 08 Nut 09 Combustion chamber 10 tealights / fuel elements 11 Recess in the base plate 12 Heating plate 13 frankincense grains 14 air supply ducts 15 estuaries 16 Base area of ​​the estuary

Claims

[1] Teapot warmer (01) comprising: - a base plate (02) which has on its underside a standing surface (03) which runs essentially horizontally in the operating state; - an upper edge (05) vertically spaced from the base plate (02); - a casing wall (04) extending between the base plate (02) and the upper edge (05), wherein the base plate (02) and the casing wall (04) enclose a combustion chamber (09) suitable for receiving a fuel element (10); - a plurality of circumferentially spaced mounting elements onto which a heating plate (12) can be placed, wherein the mounting elements are formed by at least three mounting blocks (06) spaced apart from one another along a circumferential line; - at least three air supply channels (14) distributed around the circumference of the casing wall (04), which penetrate the casing wall (04) and are open with a flow cross-section into the combustion chamber (09); - at least three orifice regions (15) distributed around the circumference of the casing wall (04), which are formed as recesses in the outer surface of the casing wall (04) with an orifice cross-section, wherein the end of each air supply duct (14) facing away from the combustion chamber (09) is open in the base area (16) of one of the orifice regions (15), wherein the orifice cross-section is at least twice as large as the flow cross-section of the air supply duct (14) opened there. [2] Teapot warmer (01) according to claim 1, characterized by that the base plate (02) has a centrally arranged circular recess (11) whose diameter is adapted to accommodate a tea light as a fuel element (10), so that the latter is protected against lateral slipping on the base plate (02). [3] Teapot warmer (01) according to claim 1 or 2, characterized by that the mouth areas (15) extend vertically into the plane of the base (03). [4] Warmer (01) according to one of claims 1 to 3, characterized by that the jacket wall (04) has a varying wall thickness and at its thickest points has a thickness which corresponds to approximately 0.8 to 1.2 times the clear radius of the combustion chamber (09). [5] Warmer (01) according to one of claims 1 to 4, characterized by that it is made in one piece and consists of granite ceramic. [6] Teapot warmer (01) according to one of claims 1 to 5, characterized by that it has a circular cross-section and that the air supply channels (14) and the mouth areas (15) are distributed at regular distances from one another on the casing wall (04). [7] Warmer (01) according to one of claims 1 to 6, characterized by that the flow cross-section of the air supply ducts (14) is at least 15 mm 2 and maximum 30 mm 2 amounts. [8] Warmer (01) according to one of claims 1 to 7, characterized bythat the support blocks (06) project beyond the upper edge (05) in vertical extension of the casing wall (04). [9] Warmer (01) according to one of claims 1 to 8, characterized by that three support blocks (06) are formed at regular intervals on the casing wall (04), each support block (06) having an upper support surface which is inclined towards the combustion chamber (09), preferably with an angle of inclination of less than 45°. [10] Warmer (01) according to one of claims 1 to 9, characterized by that the support blocks (06) are arranged vertically above the air supply ducts (14). [11] Teapot warmer (01) according to one of claims 1 to 10, characterized by that the mouth regions (15) in the circumferential direction of the casing wall (04) each have a width of at least 25 mm and at most 35 mm. [12] Teapot warmer (01) according to one of claims 1 to 11, characterized bythat the base area (16) of the mouth area (15) in the area of ​​the air supply duct (14) is set back from the outer surface of the casing wall (04) by at least 8 mm and at most 16 mm. [13] Smoking arrangement consisting of a warmer (01) according to one of claims 1 to 12 and a heating plate (12) which can be placed on the warmer (01), wherein the heating plate (12) is dimensioned such that it does not protrude horizontally beyond the casing wall (04) of the warmer (01).

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