A warm air brazier
By installing air ducts and heating elements inside the furnace, and using a fan to drive external air to mix with internal heat to form a gentle warm breeze, the problem of skin irritation caused by direct radiation from electric heating elements is solved, improving heating comfort and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN PERFECT IND DESIGN CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
When existing heating stoves release heat radiation through electric heating elements, the heat radiation directly affects human skin, which can easily cause a stinging sensation and reduce user comfort.
An air duct and heating elements are installed inside the furnace. A fan drives outside air into the furnace, where it mixes with the internal heat to form a gentle warm air. The warm air, which is then discharged through the heating elements and fan in the air duct, is at a temperature suitable for the human body.
It avoids the stinging sensation of heat radiation on the skin, improves the comfort of heating, and effectively utilizes the heat inside the furnace body, reducing the energy consumption of the heating element.
Smart Images

Figure CN224498577U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stove technology, and in particular relates to a warm air stove. Background Technology
[0002] Electric fireplaces have secured a significant market position and are highly favored by consumers due to their rapid heating and outstanding thermal efficiency. To further expand their functional boundaries and meet users' heating needs in cold environments, fireplace products with integrated heating functions have emerged on the market.
[0003] The core heating principle of existing fireplaces is to install electric heating elements inside the fireplace, which release heat radiation to warm the body. However, when heat radiation directly affects the skin, it can easily cause a stinging sensation, greatly reducing comfort and impacting the user experience. Summary of the Invention
[0004] The purpose of this invention is to provide a warm air fireplace that can solve the above-mentioned problems.
[0005] To achieve the above objectives, this utility model provides a warm air enclosed stove, including a stove body, a first heating element disposed inside the stove body, an air duct formed on the inner bottom wall of the stove body, a first air outlet opened on the air duct to communicate with the interior of the stove body, a second air outlet opened on the outer side wall of the stove body to communicate with the air duct, and a third air outlet located above the second air outlet, the third air outlet communicating with the interior of the stove body;
[0006] A fan is installed at the first air outlet, which is used to exhaust the air inside the furnace into the air duct. A second heating element for heating the air is installed in the air duct.
[0007] Optionally, the air duct forms at least two outward-facing fourth air vents, each of which is provided with a second heating element, and each of the fourth air vents is connected to a second air vent.
[0008] Optionally, the air duct is provided with a guide cone corresponding to the first air outlet. When the fan discharges air from the furnace body into the air duct, each of the fourth air outlets can be diverted to a portion of the air through the guide cone.
[0009] Optionally, the furnace body includes a shell, a tray, and a microcrystalline panel. The upper end of the shell is open, the tray is disposed at the opening of the shell and recessed towards the interior of the shell, the middle part of the tray protrudes upward to form a collection groove around the middle part of the tray, the middle part of the tray is hollowed out, the microcrystalline panel is installed in the hollowed-out part of the middle of the tray, and the first heating element is disposed at the lower end of the microcrystalline panel.
[0010] Optionally, the furnace body includes a bottom shell and a surrounding wall at the upper end of the bottom shell, the second air vent is disposed on the side wall of the bottom shell, the third air vent is disposed on the side wall of the surrounding wall, and multiple air vents are disposed around the circumference of the surrounding wall, and the tray is engaged with the upper end of the surrounding wall.
[0011] Optionally, an annular groove is formed at the upper end of the bottom shell, and the lower end of the enclosure wall is adapted to the annular groove.
[0012] Optionally, the upper edge of the bottom shell is bent inward and downward into a bent wall, and the lower end of the bent wall extends inward horizontally to form a support wall. The bent wall and the support wall form the annular groove. The enclosure includes a horizontally inwardly extending abutment wall that abuts against the support wall and is fixedly connected by fasteners.
[0013] Optionally, the abutment wall further includes an arc-shaped wall, which is disposed on the outside of the abutment wall. The arc-shaped wall extends upward and bends outward. The third air vent is disposed on the arc-shaped wall. The upper end of the arc-shaped wall extends upward to form a connecting wall. The outer side of the tray is rolled downward to form a rolled edge, which is engaged with the upper end of the connecting wall.
[0014] Optionally, the first heating element is one of an electric ceramic heating plate, a carbon crystal heating plate, a light wave electric heating tube, or a metal tube heater.
[0015] Optionally, the second heating element is one of a PTC heater, a metal wire heating element, or a carbon nanotube heating film.
[0016] Compared with existing technologies, the beneficial effects of this invention are as follows: The second heating element heats the air within the air duct, and the external air, driven by a fan, enters the furnace body through the third air inlet. This air mixes with the heat released by various components inside the furnace body and then re-integrates with the heat released by the second heating element within the air duct, ultimately forming warmer, more comfortable air that is discharged from the furnace body through the second air outlet, providing warmth to the human body. The discharged warm air is gentle and avoids causing stinging sensations on the skin, effectively improving the comfort of heating. The fan driving external air into the furnace body not only dissipates heat from the furnace interior but also effectively utilizes the heat inside the furnace body, thereby reducing the energy consumption of the second heating element. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a perspective view of the present invention.
[0019] Figure 2 This is a top view of the present invention.
[0020] Figure 3 For along Figure 2 Sectional view along line AA in the middle.
[0021] Figure 4 For example Figure 3 A magnified view of a portion of region A shown in the diagram.
[0022] Figure 5 This is an exploded view of the concealed microcrystalline panel, tray, and enclosure of this utility model.
[0023] In the picture:
[0024] 100. Furnace body; 110. Shell; 111. Bottom shell; 1111. Second air inlet; 1112. Annular groove; 1113. Bending wall; 1114. Supporting wall; 112. Enclosing wall; 1121. Abutting wall; 1122. Arc-shaped wall; 1123. Connecting wall; 1124. Third air inlet; 120. Tray; 121. Collection groove; 122. Rolled edge; 130. Microcrystalline panel;
[0025] 200. First heating element;
[0026] 300. Air duct; 310. First air outlet; 320. Fourth air outlet; 330. Air guide cone;
[0027] 400. Fan;
[0028] 500. Second heating element. Detailed Implementation
[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0030] In the description of the embodiments of this utility model, it should be understood that if the embodiments of this utility model involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the embodiments of this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part of a structure. They can be mechanical or electrical connections. They can be direct connections or indirect connections through an intermediate medium, and can represent the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.
[0033] like Figures 1 to 5As shown, this utility model embodiment provides a warm air enclosed stove, including a stove body 100. A first heating element 200 is provided inside the stove body 100. Specifically, the stove body 100 includes a shell 110, a tray 120, and a microcrystalline panel 130. The upper end of the shell 110 is open. The tray 120 is located at the opening of the shell 110 and is recessed towards the inside of the shell 110. The middle part of the tray 120 protrudes upward to form a collection groove 121 around the middle part of the tray 120. It should be noted that the middle part of the tray 120 is lower than the outer side of the tray 120. The middle part of the tray 120 is hollowed out. The microcrystalline panel 130 is installed in the hollowed-out part of the middle part of the tray 120.
[0034] It is important to understand that during use, a wire rack is placed on the upper part of the tray 120, and food is placed on the wire rack. The first heating element 200 is located at the lower end of the microcrystalline panel 130. The heat released by the first heating element 200 is transferred through the microcrystalline panel 130 to the food and the wire rack, thereby heating the food. The first heating element 200 is one of an electroceramic heating plate, a carbon crystal heating plate, a light wave electric heating tube, or a metal tube heater, preferably an electroceramic heating plate. The collection groove 121 facilitates the collection of fallen stains, making it easy for users to clean. The upper surface of the tray 120 can also be coated with a non-stick coating to improve cleaning efficiency and enhance the user experience.
[0035] Furthermore, an air duct 300 is formed on the inner bottom wall of the furnace body 100, and a first air outlet 310 is provided on the air duct 300 to connect the air duct 300 with the interior of the furnace body 100. Specifically, the first air outlet 310 is preferably located directly below the first heating element 200. A second air outlet 1111 is provided on the outer wall of the furnace body 100 to connect with the air duct 300. The second air outlet 1111 serves as an air outlet, and a third air outlet 1124 is located above the second air outlet 1111. 124 serves as an air inlet, and the third air inlet 1124 is connected to the interior of the furnace body 100. A fan 400 is installed at the first air inlet 310. The fan 400 is used to exhaust the air inside the furnace body 100 into the air duct 300. A second heating element 500 for heating the air is installed in the air duct 300. Specifically, the second heating element 500 is one of a PTC heater, a metal wire heating element, or a carbon nanotube heating film, preferably a PTC heater. The second heating element is configured to be able to be switched on and off independently.
[0036] When using the fireplace and needing warm air, the user can turn on the fan 400 and the second heating element. At this time, the second heating element heats the air in the air duct 300. Driven by the fan 400, the outside air enters the interior of the furnace body 100 through the third air inlet, mixing with the heat released by various components inside the furnace body 100 to form hot air at a certain temperature. After the hot air further flows into the air duct 300, it mixes again with the heat released by the second heating element, finally forming warm air at a higher temperature that is suitable for the human body. This warm air is then discharged outside the furnace body 100 through the second air outlet 1111, providing warmth for the human body.
[0037] It is worth noting that the blower 400 drives external air into the furnace body 100, which not only dissipates heat from the interior of the furnace body 100 but also effectively utilizes the heat inside the furnace body 100, thereby reducing the energy consumption of the second heating element. If only heat dissipation of the interior of the furnace body 100 is required, the second heating element can be turned off separately.
[0038] In one embodiment, such as Figure 3 As shown, the air duct 300 has at least two outward-facing fourth air vents 320. Each fourth air vent 320 is equipped with a second heating element 500. Each fourth air vent 320 is connected to a second air vent 1111. The fourth air vents 320 can be two, three, four, or more, depending on design requirements, to provide heating to people in different locations. Preferably, there are two fourth air vents 320, and they are positioned opposite each other. The fourth air vents 320 can better concentrate warm air and improve heating efficiency. The second heating element 500 positioned at the fourth air vents 320 can prevent the warm air from cooling down as it passes through the air duct 300, effectively improving the user's heating experience.
[0039] In one embodiment, such as Figure 3 and 5 As shown, the air duct 300 is provided with an air guide cone 330 corresponding to the first air outlet 310. When the blower 400 discharges the air in the furnace body 100 into the air duct 300, each fourth air outlet 320 can be diverted to a portion of the air through the air guide cone 330, so that the warm air flowing out of each fourth air outlet 320 can be uniform. Specifically, the lower end of the shell 110 is recessed inward to form an air guide cone 330 that protrudes relative to the inner bottom wall of the shell 110. The structure is more stable and conducive to production, and the production cost is low.
[0040] In one embodiment, such as Figure 4As shown, the housing 110 includes a bottom shell 111 and a surrounding wall 112 enclosing the upper end of the bottom shell 111. The second air vent 1111 is located on the side wall of the bottom shell 111, and the third air vent 1124 is located on the side wall of the surrounding wall 112. Multiple vents are arranged around the circumference of the surrounding wall 112 to increase the air intake area, which is beneficial for heat dissipation inside the furnace body 100 and allows the second air vent 1111 to discharge a larger volume of warm air, thereby improving the heating effect for users. The tray 120 is snapped into the upper end of the surrounding wall 112. The overall structure is simple and facilitates subsequent disassembly, assembly, maintenance and replacement.
[0041] In one embodiment, such as Figure 4 and 5 As shown, an annular groove 1112 is formed at the upper end of the bottom shell 111, and the lower end of the enclosure wall 112 is adapted to the annular groove 1112 to facilitate the assembly of the enclosure wall 112. Specifically, the upper edge of the bottom shell 111 is bent inward and downward into a bent wall 1113, and the lower end of the bent wall 1113 extends inward horizontally to form a support wall 1114. The bent wall 1113 and the support wall 1114 form the annular groove 1112, that is, the annular groove 1112 is set inside the furnace body 100. The enclosure wall 112 includes a horizontally inwardly extending abutment wall 1121, which abuts against the support wall 1114 and is fixedly connected by fasteners, which can effectively save the space occupied by the enclosure wall 112. The fasteners are bolts or screws.
[0042] Furthermore, such as Figure 4 As shown, the enclosure 112 also includes an arc-shaped wall 1122, wherein the arc-shaped wall 1122 is disposed on the outside of the abutment wall 1121. The arc-shaped wall 1122 extends upward and bends outward, which can improve the stability of the enclosure 112 structure. The third air vent 1124 is disposed on the arc-shaped wall 1122. The upper end of the arc-shaped wall 1122 extends upward to form a connecting wall 1123. The outer side of the tray 120 is rolled downward to form a rolled edge 122. The rolled edge 122 is engaged with the upper end of the connecting wall 1123, which is convenient for disassembly and assembly and has a stable structure.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A warm air-filled fireplace, characterized in that, The furnace includes a furnace body (100), inside which a first heating element (200) is provided. An air duct (300) is formed on the inner bottom wall of the furnace body (100). A first air outlet (310) is provided on the air duct (300) to communicate with the interior of the furnace body (100). A second air outlet (1111) is provided on the outer side wall of the furnace body (100) to communicate with the air duct (300), and a third air outlet (1124) is located above the second air outlet (1111) to communicate with the interior of the furnace body (100). A fan (400) is provided at the first air outlet (310). The fan (400) is used to exhaust the air in the furnace body (100) into the air duct (300). A second heating element (500) for heating the air is provided in the air duct (300).
2. The warm air fireplace according to claim 1, characterized in that, The air duct (300) has at least two outward-facing fourth air vents (320), each of which is provided with a second heating element (500), and each of the fourth air vents (320) is connected to a second air vent (1111).
3. The warm air fireplace according to claim 2, characterized in that, The air duct (300) is provided with an air guide cone (330) corresponding to the first air outlet (310). When the fan (400) discharges the air in the furnace body (100) into the air duct (300), each of the fourth air outlets (320) can be diverted to a portion of the air through the air guide cone (330).
4. The warm air fireplace according to claim 1, characterized in that, The furnace body (100) includes a shell (110), a tray (120), and a microcrystalline panel (130). The upper end of the shell (110) is open. The tray (120) is located at the opening of the shell (110) and is recessed towards the interior of the shell (110). The middle part of the tray (120) protrudes upward to form a collection groove (121) around the middle part of the tray (120). The middle part of the tray (120) is hollowed out. The microcrystalline panel (130) is installed in the hollowed-out middle part of the tray (120). The first heating element (200) is located at the lower end of the microcrystalline panel (130).
5. The warm air fireplace according to claim 4, characterized in that, The housing (110) includes a bottom shell (111) and a surrounding wall (112) surrounding the upper end of the bottom shell (111). The second air vent (1111) is disposed on the side wall of the bottom shell (111), and the third air vent (1124) is disposed on the side wall of the surrounding wall (112), and multiple vents are disposed around the circumference of the surrounding wall (112). The tray (120) is engaged with the upper end of the surrounding wall (112).
6. The warm air fireplace according to claim 5, characterized in that, The upper end of the bottom shell (111) is formed with an annular groove (1112), and the lower end of the enclosure (112) is adapted to the annular groove (1112).
7. The warm air fireplace according to claim 6, characterized in that, The upper edge of the bottom shell (111) is bent inward and downward into a bent wall (1113). The lower end of the bent wall (1113) extends inward horizontally to form a support wall (1114). The bent wall (1113) and the support wall (1114) form the annular groove (1112). The enclosure wall (112) includes a horizontally inwardly extending abutment wall (1121). The abutment wall (1121) abuts against the support wall (1114) and is fixedly connected by fasteners.
8. The warm air fireplace according to claim 7, characterized in that, The enclosure (112) also includes an arc-shaped wall (1122), which is located on the outside of the abutment wall (1121). The arc-shaped wall (1122) extends upward and bends outward. The third air vent (1124) is located on the arc-shaped wall (1122). The upper end of the arc-shaped wall (1122) extends upward to form a connecting wall (1123). The outer side of the tray (120) is rolled downward to form a rolled edge (122), which is engaged with the upper end of the connecting wall (1123).
9. The warm air fireplace according to any one of claims 1 to 8, characterized in that, The first heating element (200) is one of an electric ceramic heating plate, a carbon crystal heating plate, a light wave electric heating tube, or a metal tube heater.
10. The warm air fireplace according to any one of claims 1 to 8, characterized in that, The second heating element (500) is one of a PTC heater, a metal wire heating element, or a carbon nanotube heating film.