Convection type warmer

Abstract

The utility model provides a convection type warmer which comprises a main machine shell, and an air inlet and an air outlet are formed in the main machine shell. The thick film heating device is arranged below the air outlet and located in the main machine shell. The fan is arranged below the thick film heating device and located in the main machine shell. And the intelligent electric control module is arranged in the host shell, is electrically connected with the thick film heating device and the fan, and is used for controlling the operation of the thick film heating device and the fan. A thick film heating material in the thick film heating device replaces a traditional aluminum sheet heating material, so that clockwise heating can be achieved, the heat conduction rate can be remarkably increased, vertical air channel heat circulation is formed in cooperation with the forced convection design of a bottom fan, the heating speed and the indoor space temperature can be effectively increased, the heating uniformity is improved, and the heating efficiency is improved. Therefore, the warmer has the technical effects of high heating speed, uniform heating, long service life, low radiation and the like.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically to a convection heater. Background Technology

[0002] Electric heaters are heating devices that use electricity as an energy source for heating. They can also be called electric heating appliances. Most existing thermal storage heaters use aluminum sheets as the main heating material. However, aluminum heating materials have a slow heating speed and uneven heating. Over time, as the aluminum degrades, the heating effect will become worse. In addition, the heating material will also emit electromagnetic radiation that is harmful to the human body during operation, and it is also easy to open flame, which poses a safety hazard. Utility Model Content

[0003] The purpose of this invention is to provide a convection heater that addresses the problems of slow heating speed, short service life, and poor heating effect in existing heaters.

[0004] To achieve the above objectives, this utility model provides a convection heater, comprising: a main unit housing, wherein the main unit housing is provided with an air inlet and an air outlet; a thick film heating device, disposed below the air outlet and located inside the main unit housing; a fan, disposed below the thick film heating device and located inside the main unit housing; and an intelligent electronic control module, disposed inside the main unit housing and electrically connected to the thick film heating device and the fan, for controlling the operation of the thick film heating device and the fan.

[0005] Furthermore, the thick film heating device includes a hollow thick film heating tube and a heat diffusion tube vertically disposed inside the main unit housing. The heat diffusion tube is disposed opposite to each other on both sides of the hollow thick film heating tube. A connecting wire is provided on the hollow thick film heating tube, and the connecting wire is electrically connected to the intelligent electronic control module.

[0006] Furthermore, the thick film heating device also includes a mounting housing, which is vertically disposed inside the main unit housing. The mounting housing has a vertically penetrating cavity inside. At least two hollow thick film heating tubes are provided and are spaced apart in the cavity along the length of the mounting housing. At least two heat diffusion tubes are provided and are disposed opposite to each other on the two end faces of the mounting housing along the length of the mounting housing.

[0007] Furthermore, each of the hollow thick-film heating tubes is provided with a wiring terminal at both ends inside the cavity. The connecting wires of the hollow thick-film heating tubes are passed through the wiring terminals and electrically connected to the intelligent electronic control module through the wires.

[0008] Furthermore, the heating element is provided with clamp connectors at both ends, and the clamp connectors are fastened to the wiring terminals by screws.

[0009] Furthermore, the number of hollow thick-film heating tubes is less than the number of heat diffusion tubes.

[0010] Furthermore, the heat diffusion tube and the side end face of the mounting housing are integrally formed.

[0011] Furthermore, both the outer surface of the heat diffusion tube and the side end face of the mounting housing are provided with a graphene far-infrared coating.

[0012] Furthermore, a high-temperature resistant ceramic tube is sleeved around the outer periphery of the hollow thick film heating tube.

[0013] Furthermore, the air outlet is located on the upper surface of the main unit housing, and the upper surface of the main unit housing is provided with an anti-scalding layer.

[0014] The convection heater provided by this utility model, compared with the prior art, has a thick film heating device located below the air outlet inside the main unit casing, and a fan is located below the thick film heating device. By replacing the traditional aluminum sheet heating material with the thick film heating material in the thick film heating device, it can achieve synchronous heating, which can significantly improve the heat conduction rate. Combined with the forced convection design of the bottom fan, a vertical air duct heat circulation is formed, which can effectively improve the heating speed and indoor space temperature, improve the heating uniformity, and make the heater have technical effects such as fast heating speed, uniform heating, long service life and low radiation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a convection heater according to the present invention;

[0016] Figure 2 This is a structural schematic diagram of a convection heater according to this utility model from another perspective (hiding the back panel of the main unit casing);

[0017] Figure 3 This is a schematic diagram of the thick film heating device in a convection heater according to the present invention.

[0018] Figure 4 This is a structural schematic diagram of the thick film heating device in a convection heater according to this utility model from another perspective (hiding the end plate on one side of the housing).

[0019] Explanation of reference numerals in the attached figures

[0020] 10-Main unit casing; 11-Air inlet; 12-Air outlet; 13-Side air outlet; 14-Electrical control box; 15-Control panel;

[0021] 20-Thick film heating device; 21-Hollow thick film heating tube; 211-High temperature resistant ceramic tube; 212-Clamping connector; 22-Heat diffusion tube; 23-Mounting housing; 231-Cavity; 24-Terminal;

[0022] 30-Fan. Detailed Implementation

[0023] The present invention will be described in detail below with reference to specific embodiments.

[0024] In this utility model, when directional terms appear, they are used to facilitate the description of this utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 4 As shown, a convection heater includes a main unit housing 10, a thick film heating device 20, and an intelligent electronic control module.

[0027] The main unit housing 10 has a box structure, and the main unit housing 10 has an installation cavity inside. The main unit housing 10 has an air inlet 11 and an air outlet 12.

[0028] The thick-film heating device 20 is located below the air outlet 12 and inside the main unit housing 10. The heating element in the thick-film heating device 20 uses thick-film heating material, which can efficiently convert electrical energy into heat energy to achieve a rapid, uniform and stable heating effect.

[0029] The fan 30 is positioned below the thick-film heating device 20 near the air inlet 11 and inside the main unit casing 10, forming a convection design with the thick-film heating device 20 and the air outlet 12, which can effectively improve the heat radiation efficiency. The fan 30 is a crossflow fan.

[0030] The intelligent electronic control module is located inside the main unit housing 10 and is electrically connected to the thick-film heating device 20 and the fan 30, used to control the operation of the thick-film heating device 20 and the fan 30. The intelligent electronic control module includes an electronic control box 14, an electronic control main board, and a control panel 15. The electronic control box 14 is located inside the main unit housing 10, the electronic control main board is located inside the electronic control box 14, and the control panel 15 is located on the outer end face of the main unit housing 10. The control panel 15, the thick-film heating device 20, and the fan 30 are all electrically connected to the electronic control main board.

[0031] In practical implementation, the air outlet 12, the thick film heating device 20 and the fan 30 form a convection design. The operation of the thick film heating device 20 and the fan 30 is controlled by an intelligent electronic control module. The thick film heating device 20 can achieve rapid and uniform heating through the thick film heating material, heating the surrounding space. Then, the fan 30 sends the hot air out from the air outlet 12, allowing the indoor temperature to rise rapidly.

[0032] Compared to existing technologies, by installing a thick-film heating device 20 inside the main unit casing 10 below the air outlet 12, and placing the fan 30 below the thick-film heating device 20, the thick-film heating material in the thick-film heating device 20 replaces the traditional aluminum sheet heating material, enabling synchronous heating and significantly improving the heat conduction rate. Combined with the forced convection design of the bottom fan 30, a vertical airflow heat circulation is formed, which can effectively improve the heating speed and indoor space temperature, improve the heating uniformity, and make the heater have technical effects such as fast heating speed, uniform heating, long service life, and low radiation.

[0033] In this embodiment, the thick film heating device 20 includes a hollow thick film heating tube 21 and a heat diffusion tube 22 erected inside the main unit housing 10. The heat diffusion tube 22 is disposed opposite to both sides of the hollow thick film heating tube 21. The hollow thick film heating tube 21 is provided with connecting wires, which are electrically connected to the intelligent electronic control module.

[0034] In practical implementation, the hollow thick film heating tube 21 is equipped with a heating resistance layer. The heating resistance layer is energized through connecting wires, and the electrical energy is quickly converted into heat energy and transferred to the hollow part inside the hollow thick film heating tube 21 and the heat diffusion tubes 22 on both sides. After the air inside the hollow thick film heating tube 21 and the heat diffusion tubes 22 is heated, the hot air can be naturally and slowly sent to the air outlet 12 through natural air convection. Alternatively, the fan 30 can be started to quickly send the hot air out of the air outlet 12, thereby accelerating the increase of the indoor temperature.

[0035] In addition, the outer surface of the hollow thick film heating tube 21 is provided with an insulating coating. This insulating coating can not only provide insulation and increase heat dissipation, but also improve the release distance and effect of the far-infrared function of the hollow thick film heating tube 21.

[0036] Specifically, the thick film heating device 20 also includes a mounting housing 23, which is vertically disposed inside the main unit housing 10. The mounting housing 23 has a vertically penetrating cavity 231 inside, at least two hollow thick film heating tubes 21 are provided and are spaced apart in the cavity 231 along the length of the mounting housing 23, and at least two heat diffusion tubes 22 are provided and are disposed opposite to each other on the two end faces of the mounting housing 23 along the length of the mounting housing 23.

[0037] In practical implementation, the mounting housing 23 is assembled from sheet metal parts, creating a through cavity 231 inside. The hollow thick-film heating tube 21 is installed inside the main unit casing 10 via the mounting housing 23. The number of hollow thick-film heating tubes 21 can be used to set the heating speed, providing a more uniform heating effect and ensuring that heat is evenly distributed over a larger area. The heat diffusion tubes 22 are fixedly installed on both ends of the mounting housing 23, and the number of heat diffusion tubes 22 is greater than the number of hollow thick-film heating tubes 21. The spacing between each heat diffusion tube 22 is short, allowing it to quickly receive the heat energy transferred from the hollow thick-film heating tubes 21. The heated air inside the heat diffusion tubes 22 rises upwards for release. The mounting housing 23, hollow thick-film heating tubes 21, and heat diffusion tubes 22 are all installed vertically inside the main unit casing 10, thereby achieving the effect of natural air convection.

[0038] In this embodiment, wiring terminals 24 are provided at both ends of each hollow thick film heating tube 21 inside the cavity 231. The wires of the hollow thick film heating tube 21 are passed through the wiring terminals 24 and are electrically connected to the intelligent electronic control module through the wires.

[0039] In practice, the connecting wires on the upper part of each hollow thick film heating tube 21 are connected to the wiring terminals 24 at the upper and lower ends of the cavity, and then connected to the intelligent electronic control module for power supply through the wires.

[0040] In this embodiment, the hollow thick film heating tube 21 is provided with clamp connectors 212 at both ends, and the clamp connectors 212 are fastened to the wiring terminal 24 by screws.

[0041] In practical implementation, the hollow thick-film heating element 21 is securely connected to the terminal block 24 via clamp connectors 212 at both ends, thereby firmly connecting it within the mounting housing 23. The clamp connectors 212 are made of high-temperature resistant metal and have an insulating coating on their surface to prevent leakage and improve safety.

[0042] In this embodiment, the heat diffusion tube 22 and the side end face of the mounting housing 23 are integrally formed.

[0043] In practical implementation, since the mounting housing 23 is assembled from sheet metal parts, the sheet metal parts on the side end face of the mounting housing 23 can be processed and formed simultaneously with the heat diffusion pipe 22 to form a heat diffusion module, which facilitates improved assembly efficiency. The heat diffusion pipe 22 can have a rectangular or circular cross-section, but a rectangular cross-section is more convenient for processing and forming.

[0044] In this embodiment, both the outer surface of the heat diffusion tube 22 and the side end face of the mounting housing 23 are coated with graphene far-infrared coating. The addition of the surface graphene far-infrared coating increases the proportion of infrared radiation in the 5-15μm band to 85%, realizing resonant heating of deep human tissues and effectively improving thermal comfort.

[0045] In this embodiment, a high-temperature resistant ceramic tube 211 is sleeved around the hollow thick film heating tube 21.

[0046] In practical implementation, a high-temperature resistant ceramic tube is fitted around the hollow thick-film heating tube 20 for insulation protection. The high-temperature resistant ceramic tube 211 is heated by the hollow thick-film heating tube 21. The high-temperature resistant ceramic tube has a higher temperature resistance, far exceeding the upper temperature limit of most metals (usually ≤1200℃). It exhibits minimal dimensional change at high temperatures, reducing deformation or cracking caused by thermal stress. It can maintain structural stability even at extreme high temperatures and is not easily softened or melted. Moreover, it has stronger resistance to oxidation and good electrical insulation, which can effectively improve the service life of the hollow thick-film heating tube 21.

[0047] In this embodiment, the air outlet 12 is located on the upper surface of the main unit housing 10, forming an air convection design with the thick film heating device 20 and the fan 30. The upper surface of the main unit housing 10 is provided with an anti-scalding layer to prevent scalding upon contact.

[0048] In addition, the air inlet 11 is located on the side end face of the main unit housing 10, which is suitable for use with a crossflow fan. Above the air inlet 11, on the side end face of the main unit housing 10, there is also a side air outlet 13. The thick film heating device 20 is arranged parallel to the side air outlet 13, so that the heater can release hot air not only from the vertical direction, but also from the side, further improving the heating speed of the room temperature.

[0049] Where there is no conflict, the above embodiments and features can be combined with each other.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A convection heater, characterized in that, include: The main unit casing is provided with an air inlet and an air outlet. A thick-film heating element is disposed below the air outlet and located inside the main unit casing; A fan is located below the thick-film heating device and inside the main unit housing; An intelligent electronic control module is located inside the main unit housing and is electrically connected to the thick film heating device and the fan, and is used to control the operation of the thick film heating device and the fan.

2. A convection heater as claimed in claim 1, wherein The thick film heating device includes a hollow thick film heating tube and a heat diffusion tube vertically disposed inside the main unit housing. The heat diffusion tubes are disposed opposite each other on both sides of the hollow thick film heating tube. The hollow thick film heating tube is provided with connecting wires, which are electrically connected to the intelligent electronic control module.

3. A convection heater as claimed in claim 2, wherein The thick film heating device also includes a mounting housing, which is vertically disposed inside the main unit housing. The mounting housing has a vertically penetrating cavity inside. At least two hollow thick film heating tubes are provided and are spaced apart in the cavity along the length of the mounting housing. At least two heat diffusion tubes are provided and are disposed opposite to each other on the two end faces of the mounting housing along the length of the mounting housing.

4. A convection heater as claimed in claim 3, wherein The cavity is equipped with terminals near both ends of each hollow thick film heating tube. The connecting wires of the hollow thick film heating tubes are passed through the terminals and electrically connected to the intelligent electronic control module through the wires.

5. A convection heater as claimed in claim 4, wherein The heating element is provided with clamp connectors at both ends, and the clamp connectors are fastened to the wiring terminals by screws.

6. A convection heater as claimed in claim 3, wherein The number of hollow thick-film heating tubes is less than the number of heat diffusion tubes.

7. A convection heater as claimed in claim 3, wherein The heat diffusion tube and the side end face of the mounting housing are integrally formed.

8. A convection heater as claimed in claim 7, wherein Both the outer surface of the heat diffusion tube and the side end face of the mounting housing are coated with graphene far-infrared coating.

9. A convection heater as claimed in claim 2, wherein The hollow thick film heating tube is surrounded by a high-temperature resistant ceramic tube.

10. A convection heater as claimed in claim 1, wherein The air outlet is located on the upper surface of the main unit casing, and the upper surface of the main unit casing is provided with an anti-scalding layer.

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