Combined air heater based on electromagnetic heating

Abstract

The utility model discloses a combined air heater based on electromagnetic heating, which relates to the technical field of industrial production and comprises an electric fan and a heating device. Through cooperation of the heating device and the adjusting device, the heating device heats air generated by the electric fan in an electromagnetic heating mode, electromagnetic heating has the advantages of being efficient and capable of saving energy, electric energy can be directly converted into heat energy, loss in the middle energy conversion link is reduced, the inner wall of a shell of the heating device is sleeved with a heat insulation sleeve, and the heat insulation sleeve is not prone to falling off. The heat insulation sleeve can effectively reduce loss of heat inside the heating device to the outside, too high surrounding environment temperature caused by heat leakage is avoided, the angle of the adjusting blade can be adjusted by operating the handle at the top end and the bottom end of the rotating rod, and therefore the wind direction of hot air can be flexibly adjusted, and a user can conveniently adjust the wind direction according to actual requirements. And hot air is guided to different directions, so that the use flexibility and applicability of the air heater are improved.

Description

Technical Field

[0001] This utility model relates to the field of industrial production technology, specifically to a combined hot air blower based on electromagnetic heating. Background Technology

[0002] Hot air blowers play an indispensable role in many scenarios of industrial production and daily life. Existing hot air blowers generally generate heat by electric heating wires, and then use a fan to blow air over the heating element to heat the air and form hot air. The hot air is then sent out through the air outlet to achieve functions such as heating and drying of specific spaces or objects.

[0003] However, generating heat through methods such as electric heating wires or gas combustion presents several problems. Electric heating wires require converting electrical energy into the internal energy of the heating wires before transferring heat to the air via heat conduction. This multi-stage energy conversion process leads to significant energy loss. Furthermore, in industries with high requirements for heating efficiency and temperature control precision, such as electronic component drying, traditional hot air blowers struggle to meet the demands. Moreover, the air outlets of traditional hot air blowers are mostly fixed, making it impossible to flexibly adjust the direction of hot air according to the actual usage scenario, thus limiting their application in different environments. In addition, if heat leaks into the surrounding environment during operation, it not only wastes energy but may also pose safety hazards to surrounding equipment and personnel. For example, in flammable or explosive environments, heat leakage could lead to danger. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a combined hot air blower based on electromagnetic heating, which solves the problems of high energy consumption, difficulty in adjusting airflow direction, and easy heat leakage of traditional hot air blowers.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a combined hot air blower based on electromagnetic heating, comprising: an electric blower, wherein the electric blower further comprises a heating device, the side wall of the heating device is fixedly connected to the side wall of the electric blower, and the heating device heats the air generated by the electric blower by electromagnetic heating; an adjustment device is fixedly connected to the end of the heating device away from the electric blower; the heating device comprises a housing, the inner wall of the housing is fitted with a heat insulation sleeve, the inner wall of the heat insulation sleeve is fixedly connected to an electromagnetic heating tube, and an adjustment device is fixedly connected to one end of the housing.

[0008] Preferably, the sidewalls of the housing and the heat insulation sleeve are fixedly connected to the sidewall of the electric fan. The adjustment device is located at the end of the housing away from the electric fan and heats the air generated by the electric fan by electromagnetic heating. Electromagnetic heating has the characteristics of high efficiency and energy saving. It can directly convert electrical energy into heat energy and reduce the loss in the intermediate energy conversion process.

[0009] Preferably, a heat dissipation box is fixedly connected to the outer wall of the electromagnetic heating tube, and heat dissipation holes are opened on the inner wall of the heat dissipation box. A through cavity is opened on the inner wall of the heat dissipation box and the fan. The through cavity provides a smooth channel for the flow of air, so that the air generated by the electric fan can smoothly enter the heat dissipation box and dissipate the heat of the electromagnetic heating tube located outside the heat insulation sleeve.

[0010] Preferably, the outer wall of the heat sink is fixedly connected to the outer wall of the housing and the electric fan, and the input and output ends of the electromagnetic heating tube extend outward from the heat sink and are electrically connected to the power supply of the outer wall.

[0011] Preferably, the adjustment device includes a frame, a rotating rod rotatably connected to the inner wall of the frame, the outer wall of the rotating rod being arranged in a linear array along the inner wall of the frame, an adjustment blade fixedly connected to the outer wall of the rotating rod, and a gear fixedly connected to the bottom end of the adjustment blade. The rotation of the rotating rod can drive the gear and the adjustment blade to rotate on the inner wall of the frame. Users can guide the hot air in different directions according to actual needs, improving the flexibility and applicability of the hot air blower.

[0012] Preferably, the side wall of the frame is fixedly connected to the side wall of the housing, the outer wall of the adjusting blade is slidably connected to the inner wall of the frame, and the bottom end of the gear is rotatably connected to the inner wall of the frame.

[0013] (III) Beneficial Effects

[0014] This invention provides a combined hot air blower based on electromagnetic heating. It has the following beneficial effects:

[0015] This utility model, through the combination of a heating device and an adjustment device, uses electromagnetic heating to heat the air generated by the electric fan. Electromagnetic heating is highly efficient and energy-saving, directly converting electrical energy into heat energy and reducing losses in intermediate energy conversion stages. A heat insulation sleeve is installed on the inner wall of the heating device's casing, which effectively reduces the loss of heat from the heating device to the outside, preventing excessively high ambient temperatures caused by heat leakage. The angle of the adjustment blades can be adjusted by operating the handles at the top and bottom of the rotating rod, thereby achieving flexible adjustment of the hot air direction. Users can direct the hot air in different directions according to actual needs, improving the flexibility and applicability of the hot air blower. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a schematic diagram of the structure of the electromagnetic heating tube in this practical application;

[0020] Figure 5 This is a schematic diagram of the adjustment device of this utility model.

[0021] In the diagram: 1. Electric fan; 2. Heating device; 20. Housing; 21. Heat insulation sleeve; 22. Electromagnetic heating tube; 23. Heat dissipation box; 24. Through cavity; 3. Adjustment device; 30. Frame; 31. Rotating rod; 32. Adjusting blade; 33. Gear. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1-5 This utility model provides a technical solution: a combined hot air blower based on electromagnetic heating, comprising:

[0025] The electric fan 1 also includes a heating device 2, the side wall of which is fixedly connected to the side wall of the electric fan 1. The heating device 2 heats the air generated by the electric fan 1 by electromagnetic heating. An adjustment device 3 is fixedly connected to the end of the heating device 2 away from the electric fan 1. Before using the electric fan 1, the adjustment device 3 is adjusted to a suitable angle according to the area to be heated of the object to be processed, so that the heating device 2 can conduct hot air to the area to be heated.

[0026] The heating device 2 includes a housing 20, with a heat insulation sleeve 21 fitted inside the housing 20. An electromagnetic heating tube 22 is fixedly connected to the inner wall of the heat insulation sleeve 21. An adjustment device 3 is fixedly connected to one end of the housing 20. The side walls of the housing 20 and the heat insulation sleeve 21 are fixedly connected to the side wall of the electric fan 1. The adjustment device 3 is located at the end of the housing 20 away from the electric fan 1. The electric fan 1 delivers air into the middle of the electromagnetic heating tube 22 in the heating device 2. The input and output ends of the electromagnetic heating tube 22 are electrically connected to an external power supply. The external unit provides high-frequency alternating current to the electromagnetic heating tube 22. Based on the principle of electromagnetic induction, the alternating current... When current passes through the electromagnetic heating tube 22, an alternating magnetic field is generated, which produces countless small eddy currents in the metal conductor inside the electromagnetic heating tube 22. Due to the resistance of the conductor itself, according to Joule's law, the eddy currents cause the charge carriers inside the conductor to move at high speed and randomly. The charge carriers collide and rub against each other with the atoms, thereby converting electrical energy into heat energy, causing the electromagnetic heating tube 22 to heat up rapidly. At the same time, a heat insulation sleeve 21 is provided on the inner wall of the shell 20 of the heating device 2. The heat insulation sleeve 21 can effectively reduce the heat loss from the inside of the heating device 2 to the outside, thereby improving the energy utilization rate and allowing more heat to be used for heating the air.

[0027] A heat sink 23 is fixedly connected to the outer wall of the electromagnetic heating tube 22. The inner wall of the heat sink 23 has heat dissipation holes. A cavity 24 is formed in the inner wall of the heat sink 23 and the fan. The outer wall of the heat sink 23 is fixedly connected to the outer wall of the housing 20 and the fan 1. The input and output ends of the electromagnetic heating tube 22 extend to the outside of the heat sink 23 and are electrically connected to the power supply of the outer wall. On the other hand, it avoids the ambient temperature from being too high due to heat leakage. The heat sink 23 is fixedly connected to the outer wall of the electromagnetic heating tube 22, and the inner wall of the heat sink 23 has heat dissipation holes. The heat sink 23 introduces the air from the fan 1 through the cavity 24, which increases the contact area between the electromagnetic heating tube 22 and the air, and can quickly dissipate the heat generated by the electromagnetic heating tube 22.

[0028] The adjustment device 3 includes a frame 30, with a rotating rod 31 rotatably connected to the inner wall of the frame 30. The outer wall of the rotating rod 31 is arranged in a linear array along the inner wall of the frame 30. An adjustment blade 32 is fixedly connected to the outer wall of the rotating rod 31, and a gear 33 is fixedly connected to the bottom end of the adjustment blade 32. The side wall of the frame 30 is fixedly connected to the side wall of the housing 20. The outer wall of the adjustment blade 32 is slidably connected to the inner wall of the frame 30. The bottom end of the gear 33 is rotatably connected to the inner wall of the frame 30. When the adjustment device 3 needs to be adjusted according to the target area to be heated, the operator operates the handle at the top of the rotating rod 31. Since the rotating rod 31 is fixedly connected to the adjusting blade 32, when the rotating rod 31 drives the adjusting blade 32 to rotate, the gear 33 at the bottom of the adjusting blade 32 also rotates synchronously. Since the outer wall of the rotating rod 31 is arranged in a linear array along the inner wall of the frame 30, the mutual cooperation between the gears 33 enables multiple adjusting blades 32 to rotate in tandem, thereby changing the angle of the adjusting blade 32. The change in the overall blade angle will guide the hot air to flow in different directions, realizing flexible adjustment of the hot air direction. Users can guide the hot air in different directions according to actual needs, improving the flexibility and applicability of the hot air blower.

[0029] When using the electric fan 1, adjust the adjusting device 3 to a suitable angle according to the area to be heated of the object to be processed, so that the heating device 2 can conduct hot air to the area to be heated.

[0030] When the adjustment device 3 needs to be adjusted according to the target area to be heated, the operator operates the handle at the top of the rotating rod 31. During this process, since the rotating rod 31 is fixedly connected to the adjusting blade 32, while the rotating rod 31 drives the adjusting blade 32 to rotate, the gear 33 at the bottom of the adjusting blade 32 also rotates synchronously. Since the outer wall of the rotating rod 31 is arranged in a linear array along the inner wall of the frame 30, the mutual cooperation between the gears 33 enables multiple adjusting blades 32 to rotate in tandem, thereby changing the angle of the adjusting blade 32. The change in the overall blade angle will guide the hot air to flow in different directions, realizing flexible adjustment of the hot air direction. Users can guide the hot air in different directions according to actual needs, improving the flexibility and applicability of the hot air blower.

[0031] Then, the power supply to the heating device 2 and the electric fan 1 is turned on. During this process, the electric fan 1 delivers air into the middle of the electromagnetic heating tube 22 in the heating device 2. The input and output ends of the electromagnetic heating tube 22 are electrically connected to the external power supply. The external unit provides high-frequency alternating current to the electromagnetic heating tube 22. According to the principle of electromagnetic induction, when the alternating current passes through the electromagnetic heating tube 22, it will generate an alternating magnetic field, generating countless small eddy currents in the metal conductor inside the electromagnetic heating tube 22. Since the conductor itself has resistance, according to Joule's law, the eddy currents cause the charge carriers inside the conductor to move at high speed and randomly. The charge carriers collide and rub against each other with the atoms, thereby converting electrical energy into heat energy, causing the electromagnetic heating tube 22 to heat up rapidly.

[0032] Meanwhile, a heat insulation sleeve 21 is provided on the inner wall of the housing 20 of the heating device 2. The heat insulation sleeve 21 can effectively reduce the loss of heat from the inside of the heating device 2 to the outside, thereby improving the energy utilization rate and allowing more heat to be used for heating the air.

[0033] On the other hand, it avoids excessive ambient temperature caused by heat leakage. The outer wall of the electromagnetic heating tube 22 is fixedly connected to the heat dissipation box 23, and the inner wall of the heat dissipation box 23 is provided with heat dissipation holes. The heat dissipation box 23 introduces the air of the electric fan 1 through the cavity 24, which increases the contact area between the electromagnetic heating tube 22 and the air, and can quickly dissipate the heat generated by the electromagnetic heating tube 22.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined hot air blower based on electromagnetic heating, comprising: The electric fan (1) is characterized by: The electric fan (1) also includes a heating device (2), the side wall of the heating device (2) is fixedly connected to the side wall of the electric fan (1), the heating device (2) heats the air generated by the electric fan (1) by electromagnetic heating, and an adjustment device (3) is fixedly connected to the end of the heating device (2) away from the electric fan (1). The heating device (2) includes a housing (20), the inner wall of the housing (20) is fitted with a heat insulation sleeve (21), the inner wall of the heat insulation sleeve (21) is fixedly connected with an electromagnetic heating tube (22), and one end of the housing (20) is fixedly connected with an adjustment device (3).

2. The combined hot air blower based on electromagnetic heating according to claim 1, characterized in that: The sidewalls of the housing (20) and the heat insulation sleeve (21) are fixedly connected to the sidewall of the electric fan (1), and the adjustment device (3) is located at the end of the housing (20) away from the electric fan (1).

3. A combined hot air blower based on electromagnetic heating according to claim 2, characterized in that: The outer wall of the electromagnetic heating tube (22) is fixedly connected to a heat dissipation box (23), the inner wall of the heat dissipation box (23) is provided with heat dissipation holes, and the inner walls of the heat dissipation box (23) and the fan are provided with a through cavity (24).

4. A combined hot air blower based on electromagnetic heating according to claim 3, characterized in that: The outer wall of the heat sink (23) is fixedly connected to the outer wall of the shell (20) and the electric fan (1). The input and output ends of the electromagnetic heating tube (22) extend to the outside of the heat sink (23) and are electrically connected to the power supply of the outer wall.

5. A combined hot air blower based on electromagnetic heating according to claim 1, characterized in that: The adjustment device (3) includes a frame (30), a rotating rod (31) is rotatably connected to the inner wall of the frame (30), the outer wall of the rotating rod (31) is arranged in a linear array along the inner wall of the frame (30), an adjustment blade (32) is fixedly connected to the outer wall of the rotating rod (31), and a gear (33) is fixedly connected to the bottom end of the adjustment blade (32).

6. A combined hot air blower based on electromagnetic heating according to claim 5, characterized in that: The side wall of the frame (30) is fixedly connected to the side wall of the housing (20), the outer wall of the adjusting blade (32) is slidably connected to the inner wall of the frame (30), and the bottom end of the gear (33) is rotatably connected to the inner wall of the frame (30).

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