Heating device and warmer

Abstract

The utility model provides a heating device, which comprises a mounting shell, a heating element, a heating element, a heating element and a heating element, and is characterized in that the mounting shell is internally provided with a vertically-through cavity; the hollow thick film heating tube is vertically arranged in the cavity, and a connecting wire is arranged on the hollow thick film heating tube; the heat diffusion pipes are vertically and oppositely arranged on the end faces of the two sides of the installation shell and arranged in the length direction of the installation shell at intervals. By means of the thick film resistance heating technology of the hollow thick film heating pipe, the hollow thick film heating pipe is rapidly heated after being powered on, heat energy is conducted to the heat diffusion pipes on the two sides of the installation shell at the same time, hot air is continuously released through air natural convection, the heat diffusion effect is good, and the service life is prolonged. And the hollow thick film heating pipe has the characteristics of low heat capacity, oxidation resistance, low radiation and the like, so that the service life of the heating device can be effectively prolonged.

Description

Technical Field

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

[0002] Convection heaters utilize aerodynamic principles to allow warm air to rise from the bottom up, using natural air convection for heat exchange.

[0003] Currently, common heating elements in heaters include: 1. Metal heating elements (aluminum / copper): These utilize the excellent heat dissipation properties of aluminum to diffuse heat and raise the ambient temperature. Disadvantages include slow heating, significantly reduced thermal conductivity after high-temperature oxidation, short lifespan, electrical conductivity (posing a risk of leakage), oxidation at high temperatures (reducing safety), and limited heat coverage. 2. Graphene coating (combined with a metal heating element): This improves the uniformity and efficiency of heating by coating the metal heating element with graphene, but manufacturing costs are higher. 3. Carbon crystal plate / carbon fiber heating wire: Essentially a carbon crystal heating plate, this synthesizes carbon crystal particles (composed of carbon fibers) with polymer resin as the heating material. The outer shell is typically made of metal materials like aluminum alloy profiles for heat dissipation. Advantages include rapid heating, wide heat diffusion range, excellent comfort, and good water resistance. Disadvantages include high initial cost, lower safety (it gets hot to the touch upon direct contact), and it is mostly used in commercial wall heaters.

[0004] In addition, heaters using the above-mentioned heating devices will generate electromagnetic radiation during use, which may affect human health. Utility Model Content

[0005] The purpose of this invention is to provide a heating device with fast heating speed, good heat diffusion effect and long service life.

[0006] To achieve the above objectives, this utility model provides a heating device, comprising: a mounting housing, wherein a vertically penetrating cavity is provided inside the mounting housing; a hollow thick-film heating tube, vertically disposed within the cavity, wherein a connecting wire is provided on the hollow thick-film heating tube; and heat diffusion tubes, vertically oppositely disposed on both end faces of the mounting housing, and spaced apart along the length direction of the mounting housing.

[0007] Furthermore, at least two hollow thick-film heating tubes are provided, and they are spaced apart along the length of the cavity.

[0008] Furthermore, wiring terminals are provided at both ends of each hollow thick-film heating tube within the cavity, and the connecting wires of the hollow thick-film heating tube are passed through and fixed on the wiring terminals.

[0009] Furthermore, the hollow thick film heating tube is provided with clamp connectors at both ends, and the clamp connectors at both ends of the hollow thick film heating tube are connected to the wiring terminals by screws.

[0010] Furthermore, the number of hollow thick-film heating tubes is less than the number of heat diffusion tubes.

[0011] Furthermore, the outer peripheral surface of the hollow thick film heating tube is provided with an insulating 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 heat diffusion tube has a rectangular or circular cross-section, and the heat diffusion tube and the side end face of the mounting housing are an integral structure.

[0014] Furthermore, the heat diffusion tube and the outer surface of the mounting housing are provided with a graphene far-infrared coating.

[0015] Beneficial effects: The mounting housing has a vertically penetrating cavity, and the opposite two end faces of the mounting housing are vertically spaced heat diffusion tubes. The hollow thick-film heating tube is vertically arranged in the cavity, forming an air convection design. Utilizing the thick-film resistance heating technology of the hollow thick-film heating tube, the hollow thick-film heating tube can achieve rapid heating after being powered on, and the heat energy is simultaneously conducted to the heat diffusion tubes on both sides of the mounting housing. The hot air is continuously released upward through natural air convection, resulting in good heat diffusion effect. In addition, the hollow thick-film heating tube also has the characteristics of low heat capacity, oxidation resistance and low radiation, which can effectively extend the service life of the heating device.

[0016] Another objective of this invention is to provide a heater that features rapid heating, good heat diffusion, and long service life.

[0017] This utility model provides a heater, including a main unit casing, a fan, and the aforementioned heating device. The main unit casing is provided with an air outlet and an air inlet. The heating device is vertically disposed inside the main unit casing relative to the air outlet. The fan is disposed at the bottom of the heating device and close to the air inlet.

[0018] Beneficial effects: Heaters using the above-mentioned heating devices not only have the advantages of fast heating speed, good heat diffusion effect and long service life, but also release far-infrared bands that are beneficial to the human body through hollow thick film heating tubes, realizing resonance heating of deep tissues of the human body, making the space heating experience more comfortable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a heating device according to the present invention (Example 1);

[0020] Figure 2 This is a schematic diagram of the structure of a heating device of the present invention, showing the hidden installation housing on one side end face (Example 1);

[0021] Figure 3 This is a schematic diagram of the structure of a heating device (Example 2);

[0022] Figure 4 This is a schematic diagram of the structure of a heating device of the present invention, showing a hidden mounting housing on one end face (Example 2).

[0023] Figure 5 This is a schematic diagram of the structure of a heater according to the present invention;

[0024] Figure 6 This is a structural schematic diagram of one end face of the hidden main unit casing in a heater according to the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-Heating device;

[0027] 10-Mounting housing; 11-Cavity; 12-Terminal block;

[0028] 20 - Hollow thick film heating element; 21 - High temperature resistant ceramic tube; 22 - Clamp connector;

[0029] 30-Heat diffusion tube;

[0030] 40-Main unit casing; 401-Air outlet; 402-Air inlet; 41-Fan. Detailed Implementation

[0031] The present invention will be described in detail below with reference to specific embodiments.

[0032] 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.

[0033] 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.

[0034] Example 1

[0035] like Figure 1 and Figure 2 As shown, a heating device includes a mounting housing 10, a hollow thick-film heating tube 20, and a heat diffusion tube 30.

[0036] The mounting housing 10 has a vertically penetrating cavity 11 inside, which is used to achieve the effect of air convection.

[0037] The hollow thick film heating tube 20 is vertically arranged inside the cavity 11, forming an air convection design with the openings at both ends of the cavity 11. The hollow thick film heating tube 20 is equipped with connecting wires for connecting to electricity.

[0038] The heat diffusion tubes 30 are vertically arranged opposite each other on both ends of the mounting housing 10 and are spaced apart along the length of the mounting housing 10.

[0039] In practical implementation, the mounting housing 10 is assembled from sheet metal parts, creating a through-cavity 11 inside. The hollow thick-film heating tube 20 is fabricated on a metal or non-metal substrate by doping a metal resistive paste with electronic paste possessing semiconductor far-infrared functionality, forming a 3-50μm thick-film heating layer. It has high resistivity, enabling it to generate stable power after being energized, and allowing the outer surface and hollow portion of the hollow thick-film heating tube 20 to heat up rapidly after being energized, simultaneously conducting heat energy to the heat diffusion tubes 30 on both sides of the mounting housing 10. After the air inside the hollow thick-film heating tube 20 and the heat diffusion tubes 30 is heated, the hot air is continuously released upwards through natural air convection.

[0040] In this embodiment, at least two hollow thick-film heating tubes 20 are provided and are spaced apart along the length of the cavity 11. The number of hollow thick-film heating tubes 20 allows for setting the heating speed of the heating device, providing a more uniform heating effect, and ensuring that heat is evenly distributed over a larger area. The number of hollow thick-film heating tubes 20 is less than the number of heat diffusion tubes 30.

[0041] In this embodiment, the outer peripheral surface of the hollow thick film heating tube 20 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 20.

[0042] In this embodiment, wiring terminals 12 are provided at both ends of each hollow thick film heating tube 20 inside the cavity 11, and the connecting wires of the hollow thick film heating tube 20 are passed through and fixed on the connecting terminals 12.

[0043] In practical implementation, each hollow thick-film heating tube 20 has two connecting wires, which are connected to terminal 12, and then connected to the main power switch through terminal 12. Examples include main circuit breakers, relays, and temperature control switches.

[0044] In this embodiment, the hollow thick film heating tube 20 is provided with clamp connectors 22 at both ends, and the clamp connectors 22 at both ends of the hollow thick film heating tube 20 are connected to the wiring terminal 12 by screws.

[0045] In practical implementation, the two ends of the hollow thick-film heating tube 20 are connected to the wiring terminal 12 fixedly connected in the cavity 11 by screws through the clamp connector 22, so that the hollow thick-film heating tube 20 is fixed in the cavity 11. The clamp connector 22 is made of high temperature resistant metal and is covered with an insulating coating on its surface.

[0046] In this embodiment, the heat diffusion tube 30 has a rectangular or circular cross-section, and the heat diffusion tube 30 and the side end face of the mounting housing 10 are an integral structure.

[0047] In practical implementation, the mounting housing 10 is assembled from sheet metal parts, and the heat diffusion pipe 30 is integrally formed with the side end face of the mounting housing 10 to form a heat diffusion module, which facilitates improved assembly efficiency. The heat diffusion pipe 30 can have a rectangular or circular cross-section, but a rectangular cross-section is more convenient for processing and forming.

[0048] In this embodiment, the surface of the heat diffusion tube 30 is coated with a graphene far-infrared coating. The addition of the graphene far-infrared coating increases the proportion of infrared radiation in the 5-15μm band to 85%, achieving resonant heating of deep human tissues and improving thermal comfort.

[0049] Example 2

[0050] like Figure 3 and Figure 4 As shown, the difference from Embodiment 1 is that the hollow thick film heating tube 20 is surrounded by a high-temperature resistant ceramic tube 21.

[0051] 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 21 is heated by the hollow thick-film heating tube 20. 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 20.

[0052] like Figure 5 and Figure 6As shown, a heater includes a main unit housing 40, a fan 41, and the aforementioned heating element 1. The main unit housing 40 has an air outlet 401 and an air inlet 402. The heating element 1 is vertically disposed inside the main unit housing 40 relative to the air outlet 401. The fan 41 is disposed at the bottom of the heating element 1 and near the air inlet 402. The fan 41 is a crossflow fan and is disposed at the bottom of the heating element 1 along its length.

[0053] In practical implementation, the heating device 1 and the fan 41 are electrically connected to the heater's intelligent electronic control module, which controls the start and stop of the heating device 1 and the fan 41. After the heating device 1 is started, it heats up rapidly, causing the surrounding air to heat up as well. Through natural air convection at the air outlet 401 and air inlet 402, the hot air is naturally released upwards into the usable space. The fan 41 at the bottom of the heating device 1 can quickly release the hot air into the usable space, effectively shortening the heating time in the usable space. Combined with the far-infrared function of the hollow thick film heating tube 20 and the graphene far-infrared coating on the surface of the heat diffusion tube 30, which releases far-infrared bands beneficial to the human body, it achieves resonant heating of deep tissues of the human body, making the space heating more comfortable.

[0054] Where there is no conflict, the above embodiments and features can be combined with each other.

[0055] 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 heating device, characterized in that, include: The mounting housing has a vertically penetrating cavity inside; A hollow thick-film heating tube is vertically installed inside the cavity, and a connecting wire is provided on the hollow thick-film heating tube; Heat diffusion tubes are vertically arranged opposite each other on both end faces of the mounting housing and are spaced apart along the length of the mounting housing.

2. The heating device according to claim 1, characterized in that, At least two hollow thick-film heating tubes are provided and are spaced apart along the length of the cavity.

3. The heating device according to claim 2, characterized in that, The cavity is provided with terminals near both ends of each hollow thick film heating tube, and the connecting wires of the hollow thick film heating tube are passed through and fixed on the terminals.

4. A heating device according to claim 3, characterized in that, The hollow thick film heating tube is provided with clamp connectors at both ends, and the clamp connectors at both ends of the hollow thick film heating tube are connected to the wiring terminals by screws.

5. A heating device according to claim 2, characterized in that, The number of hollow thick-film heating tubes is less than the number of heat diffusion tubes.

6. A heating device according to claim 2, characterized in that, The outer peripheral surface of the hollow thick film heating tube is provided with an insulating coating.

7. A heating device according to claim 2, characterized in that, The hollow thick film heating tube is surrounded by a high-temperature resistant ceramic tube.

8. A heating device according to claim 2, characterized in that, The heat diffusion tube has a rectangular or circular cross-section, and the heat diffusion tube and the side end face of the mounting housing are an integral structure.

9. A heating device according to claim 8, characterized in that, The heat diffusion tube and the outer surface of the mounting housing are coated with graphene far-infrared coating.

10. A heater, characterized in that, The device includes a main unit housing, a fan, and a heating device as described in any one of claims 1-9. The main unit housing has an air outlet and an air inlet. The heating device is vertically disposed inside the main unit housing relative to the air outlet. The fan is disposed at the bottom of the heating device and close to the air inlet.

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