Nozzle device and air treatment apparatus

Abstract

The utility model relates to air treatment equipment technical field discloses head device and air treatment equipment, head device includes air duct, fan, electromagnetic induction structure and inductive heating structure, the fan includes fan blade, the fan blade rotatably sets up in air duct, electromagnetic induction structure sets up on air duct, and is located the outer peripheral wall of air duct, inductive heating structure is made of metal material, inductive heating structure sets up on the inner peripheral wall of air duct, and / or, inductive heating structure sets up on the fan blade. The utility model provides head device, through electromagnetic induction structure and inductive heating structure, can realize heating to air, and energy consumption is low, heating efficiency is high and responds fast.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, specifically to a head unit and air handling equipment. Background Technology

[0002] Currently, some air handling equipment, such as fans, incorporate heating structures to heat the exhaust air. These heating structures typically use heating wires or PTC ceramic heating elements. However, heating structures like heating wires or PTC ceramic heating elements generally suffer from drawbacks such as high energy consumption, low heating efficiency, and slow response. Utility Model Content

[0003] In view of this, the present invention provides a head unit and an air handling equipment to solve the problems of high energy consumption, low heating efficiency and slow response of the heating structure of the air handling equipment.

[0004] In a first aspect, this utility model provides a head assembly, comprising:

[0005] Air duct;

[0006] A fan, the fan including fan blades, the fan blades being rotatably disposed within the air duct;

[0007] An electromagnetic induction structure is disposed on the air duct and located on the outer periphery of the air duct;

[0008] The induction heating structure is made of metal material and is disposed on the inner peripheral wall of the air duct, and / or, the induction heating structure is disposed on the fan blade.

[0009] Beneficial effects: The fan blades are rotatably mounted within the air duct, driving the surrounding airflow. Air enters through the air inlet and exits through the air outlet, accelerating air circulation and improving ventilation. The electromagnetic induction structure contains a coil. When alternating current passes through the coil, an alternating magnetic field is generated. The direction and intensity of the magnetic field change periodically with the current frequency. The alternating magnetic field generated by the coil penetrates the air duct and the induction heating structure. Since the induction heating structure is made of metal, the alternating magnetic field generates eddy currents inside it. As these eddy currents flow within the induction heating structure, the resistance of the metal converts electrical energy into heat energy (Joule heating). The air in the magnetic induction structure carries away the heat from the induction heating structure, forming hot air and thus achieving the purpose of heating the air. Furthermore, since the electromagnetic induction structure uses alternating current, its energy consumption is low. However, because the alternating magnetic field generated on the electromagnetic induction structure directly acts on the induction heating structure for heating, it does not require heat transfer through mediums such as air or flames, resulting in high heating efficiency. The alternating magnetic field generated on the electromagnetic induction structure directly acts on the induction heating structure for heating, which can be generated simply by passing alternating current through the coil of the electromagnetic induction structure. The alternating magnetic field also penetrates the air duct and the induction heating structure quickly and in real time. Therefore, the heating effect of the electromagnetic induction structure has a fast response.

[0010] In one alternative embodiment, the induction heating structure includes a metal coating disposed on the inner peripheral wall of the air duct.

[0011] Beneficial effects: The induction heating structure includes a metal coating on the inner wall of the air duct, which can generate eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure. When the eddy currents flow inside the induction heating structure, the resistance of the metal will convert electrical energy into heat energy (Joule heating); it can also simplify the overall structure and will not occupy too much space inside the air duct.

[0012] In one optional embodiment, the induction heating structure is an annular metal sheet, which is disposed between the fan and the air duct and is coaxially arranged with the fan.

[0013] Beneficial effects: The ring-shaped metal sheet generates eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure. When the eddy currents flow inside the induction heating structure, the electrical energy is converted into heat energy (Joule heating) due to the resistance of the metal. It also allows the induction heating structure to cover the entire inner wall of the air duct in the circumferential direction, resulting in a better and more uniform heating effect, and also avoids occupying too much space in the air duct.

[0014] In one alternative embodiment, the annular metal sheet is disposed in contact with the inner peripheral wall of the air duct.

[0015] Beneficial effects: The ring-shaped metal sheet is set to abut against the inner circumference of the air duct, which can reduce the space occupied by the ring-shaped metal sheet in the air duct. It can also make the induction heating structure closer to the electromagnetic induction structure. This allows the induction heating structure to be closer to the electromagnetic induction structure so that after the electromagnetic induction structure is energized, the induction heating structure can quickly generate eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure, thereby quickly converting electrical energy into heat energy.

[0016] In one optional embodiment, the induction heating structure further includes a heating element disposed on one end of the fan blade near the duct wall; the heating element is made of a metal material, or the surface of the heating element is provided with a metal coating.

[0017] Beneficial effects: The heating element is set on the fan blade near the duct wall. The alternating magnetic field generated by the coil of the electromagnetic induction structure penetrates the duct and the heating element. Since the heating element is made of metal, or the surface of the heating element is coated with metal, the alternating magnetic field can generate eddy currents inside the heating element. When the eddy currents flow inside the heating element, due to the resistance of the metal, electrical energy is converted into heat energy (Joule heat). The air passing through the electromagnetic induction structure will carry away the heat from the induction heating structure to form hot air, thereby achieving the purpose of heating the air.

[0018] In one alternative embodiment, the heating element is a sheet-like structure.

[0019] Beneficial effects: The heating element has a plate-like structure, which is simple, easy to form and connect, and can also generate eddy currents under the action of the alternating magnetic field generated by the coil of the electromagnetic induction structure, thereby converting electrical energy into heat energy.

[0020] In one alternative embodiment, the heating element is curved in an arc shape, and the curvature of the heating element is consistent with the curvature of the air duct.

[0021] Beneficial effects: The heating element is curved in an arc shape and the curvature is consistent with that of the air duct. This can avoid the movement interference between the heating element and the air duct when the fan blades rotate, prevent the heating element from generating noise when the fan blades rotate, and increase the area close to the electromagnetic induction structure, which also facilitates faster heating.

[0022] In one alternative embodiment, the fan blade is made of a metal material, or the surface of the fan blade is provided with a metal coating.

[0023] Beneficial effects: The fan blades are made of metal, or the surface of the fan blades is coated with a metal coating. The alternating magnetic field generated by the coil of the electromagnetic induction structure penetrates the air duct and the fan blades. The alternating magnetic field can generate eddy currents inside the fan blades. When the eddy currents flow inside the fan blades, due to the resistance of the metal, they will convert electrical energy into heat energy (Joule heating). The air passing through the fan blades will carry away the heat from the induction heating structure to form hot air, thereby achieving the purpose of heating the air. Therefore, making the fan blades of metal, or having a metal coating on the surface of the fan blades, can also increase the heating area.

[0024] In one alternative embodiment, the heating element is a flanged structure disposed at the end of the fan blade.

[0025] Beneficial effects: The heating element is a flanged structure set at the end of the fan blade, which can be integrally formed with the fan blade, which simplifies the structure and eliminates the need for secondary processing of the fan blade, thereby simplifying the manufacturing process.

[0026] In one alternative embodiment, the electromagnetic induction structure is attached to the outer peripheral wall of the air duct.

[0027] Beneficial effects: The electromagnetic induction structure, attached to the outer wall of the air duct, can be closer to the induction heating structure, allowing for faster electromagnetic heating of the induction heating structure.

[0028] In one alternative embodiment, the electromagnetic induction structure has at least two structures, which are circumferentially spaced on the duct wall.

[0029] Beneficial effects: Electromagnetic induction structures with at least two spaced apart along the circumference can achieve better heating effects.

[0030] Secondly, this utility model also provides an air handling device, including the aforementioned head unit.

[0031] Beneficial effects: The fan blades are rotatably mounted within the air duct, driving the surrounding airflow. Air enters through the air inlet and exits through the air outlet, accelerating air circulation and improving ventilation. The electromagnetic induction structure contains a coil. When alternating current passes through the coil, an alternating magnetic field is generated. The direction and intensity of the magnetic field change periodically with the current frequency. The alternating magnetic field generated by the coil penetrates the air duct and the induction heating structure. Since the induction heating structure is made of metal, the alternating magnetic field generates eddy currents inside it. As these eddy currents flow within the induction heating structure, the resistance of the metal converts electrical energy into heat energy (Joule heating). The air in the magnetic induction structure carries away the heat from the induction heating structure, forming hot air and thus achieving the purpose of heating the air. Furthermore, since the electromagnetic induction structure uses alternating current, its energy consumption is low. However, because the alternating magnetic field generated on the electromagnetic induction structure directly acts on the induction heating structure for heating, it does not require heat transfer through mediums such as air or flames, resulting in high heating efficiency. The alternating magnetic field generated on the electromagnetic induction structure directly acts on the induction heating structure for heating, which can be generated simply by passing alternating current through the coil of the electromagnetic induction structure. The alternating magnetic field also penetrates the air duct and the induction heating structure quickly and in real time. Therefore, the heating effect of the electromagnetic induction structure has a fast response.

[0032] In one alternative implementation, the air handling device is a fan. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a cross-sectional view of an air handling device according to an embodiment of the present utility model;

[0035] Figure 2 for Figure 1 A magnified view of part A in the diagram;

[0036] Figure 3 for Figure 2 A magnified view of part B in the diagram;

[0037] Figure 4 for Figure 2 A magnified view of part of C;

[0038] Figure 5This is a schematic diagram of the structure of the fan blade and heating element of an air handling device according to an embodiment of the present utility model;

[0039] Figure 6 This is a schematic diagram of an air handling device according to an embodiment of the present utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Air duct;

[0042] 2. Fan;

[0043] 21. Wind blades;

[0044] 3. Electromagnetic induction structure;

[0045] 4. Induction heating structure;

[0046] 41. Heating element;

[0047] 100. Head assembly;

[0048] 200. Fuselage. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not 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, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 based on the specific circumstances.

[0052] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0053] In related technologies, some air handling equipment, such as fans, incorporate heating structures to heat the exhaust air. These heating structures typically use heating wires or PTC ceramic heating elements. However, heating structures like heating wires or PTC ceramic heating elements often suffer from drawbacks such as high energy consumption, low heating efficiency, uneven heating, and slow response. Furthermore, traditional air handling equipment designs suffer from long heat transfer paths, significant heat loss, and slow heating speeds.

[0054] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.

[0055] According to an embodiment of the present invention, in one aspect, a head unit 100 is provided, comprising an air duct 1, a fan 2, an electromagnetic induction structure 3, and an induction heating structure 4; the fan 2 includes a fan blade 21, which is rotatably disposed within the air duct 1; the electromagnetic induction structure 3 is disposed on the air duct 1 and located on the outer peripheral wall of the air duct 1; the induction heating structure 4 is made of a metal material and is disposed on the inner peripheral wall of the air duct 1, and / or, the induction heating structure 4 is disposed on the fan blade 21.

[0056] The fan blade 21 is rotatably mounted inside the air duct 1, driving the surrounding airflow so that air enters from the air inlet of the air duct 1 and exits from the air outlet of the air duct 1, thereby accelerating air circulation and improving ventilation. The electromagnetic induction structure 3 contains a coil. When alternating current passes through the coil, an alternating magnetic field is generated in the coil. The direction and intensity of the magnetic field change periodically with the current frequency. The alternating magnetic field generated by the coil of the electromagnetic induction structure 3 penetrates the air duct 1 and the induction heating structure 4. Since the induction heating structure 4 is made of metal, the alternating magnetic field can generate eddy currents inside the induction heating structure 4. When the eddy currents flow inside the induction heating structure 4, due to the resistance of the metal, electrical energy is converted into heat energy (Joule heating), which is then absorbed by the electromagnetic induction structure. The air in structure 3 carries away the heat from induction heating structure 4, forming hot air, thus achieving the purpose of heating the air. Furthermore, since electromagnetic induction structure 3 uses alternating current, its energy consumption is low. However, because the alternating magnetic field generated on electromagnetic induction structure 3 directly acts on induction heating structure 4 for heating, it does not require heat transfer through mediums such as air or flames, resulting in high heating efficiency. The alternating magnetic field generated on electromagnetic induction structure 3 directly acts on induction heating structure 4 for heating. This alternating magnetic field can be generated simply by passing alternating current through the coil of electromagnetic induction structure 3. The alternating magnetic field also penetrates air duct 1 and induction heating structure 4 quickly and in real time. Therefore, the heating effect of electromagnetic induction structure 3 has a fast response.

[0057] In this embodiment, the eddy currents generated inside the induction heating structure 4 by the alternating magnetic field can be similar to generating a ring current inside the induction heating structure 4.

[0058] In a specific implementation, the induction heating structure 4 and the electromagnetic induction structure 3 are respectively disposed on the inner and outer sides of the air duct 1. The air duct 1 forms an insulating layer to ensure the safety of the electromagnetic induction structure 3 and prevent it from overheating and catching fire. The magnetic field generated by the electromagnetic induction structure 3 can penetrate the air duct 1 and act on the induction heating structure 4.

[0059] In one specific embodiment, the head unit 100 includes an air duct 1, a fan 2, an electromagnetic induction structure 3, and an induction heating structure 4; the fan 2 includes a fan blade 21, which is rotatably disposed within the air duct 1; the electromagnetic induction structure 3 is disposed on the air duct 1 and located on the outer peripheral wall of the air duct 1; the induction heating structure 4 is made of a metal material and is disposed on the inner peripheral wall of the air duct 1.

[0060] In another specific embodiment, the head unit 100 includes an air duct 1, a fan 2, an electromagnetic induction structure 3, and an induction heating structure 4; the fan 2 includes a fan blade 21, which is rotatably disposed within the air duct 1; the electromagnetic induction structure 3 is disposed on the air duct 1 and located on the outer periphery of the air duct 1; the induction heating structure 4 is made of a metal material and is disposed on the fan blade 21.

[0061] In another specific embodiment, the head unit 100 includes an air duct 1, a fan 2, an electromagnetic induction structure 3, and an induction heating structure 4; the fan 2 includes a fan blade 21, which is rotatably disposed within the air duct 1; the electromagnetic induction structure 3 is disposed on the air duct 1 and located on the outer peripheral wall of the air duct 1; the induction heating structure 4 is made of metal material and is disposed on the inner peripheral wall of the air duct 1, and is disposed on the fan blade 21.

[0062] In related technologies, the heating structure of air handling equipment typically uses heating wires or PTC ceramic heating elements to heat the air. Heating structures such as heating wires or PTC ceramic heating elements generally suffer from drawbacks such as high energy consumption, low heating efficiency, uneven heating, and slow response. Furthermore, traditional air handling devices also suffer from long heat transfer paths, large heat losses, and slow heating speeds in their structural design. In this embodiment, however, the electromagnetic induction structure 3 utilizes alternating current, resulting in lower energy consumption. Because the alternating magnetic field generated on the electromagnetic induction structure 3 directly acts on the induction heating structure 4 for heating, heat transfer does not require a medium such as air or flame, thus achieving higher heating efficiency. The alternating magnetic field generated on the electromagnetic induction structure 3 directly acts on the induction heating structure 4, and this alternating magnetic field is generated simply by applying alternating current to the coil of the electromagnetic induction structure 3. The alternating magnetic field also penetrates the air duct 1 and the induction heating structure 4 quickly and in real-time. Therefore, the heating effect of the electromagnetic induction structure 3 has a faster response time. Furthermore, in this embodiment, the electromagnetic induction structure 3 is located on the outer periphery of the air duct 1 and will not occupy the space inside the air duct 1. The induction heating structure 4 and the electromagnetic induction structure 3 are respectively arranged on the inner and outer sides of the air duct 1, resulting in a short heat transfer path, small heat loss, and fast heating speed.

[0063] In one embodiment, the induction heating structure 4 includes a metal coating disposed on the inner peripheral wall of the air duct 1.

[0064] The induction heating structure 4 includes a metal coating on the inner peripheral wall of the air duct 1. It can generate eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure 3. When the eddy currents flow inside the induction heating structure 4, the electrical energy will be converted into heat energy (Joule heat) due to the resistance of the metal. It can also simplify the overall structure and will not occupy too much space inside the air duct 1.

[0065] In a further embodiment, the induction heating structure 4 can be a metal coating covering the entire inner wall of the air duct 1, which also facilitates the fabrication and shaping of the air duct 1.

[0066] In further embodiments, the inductive heating structure 4 may be a metal coating corresponding to the position of the electromagnetic induction structure 3.

[0067] In one embodiment, the induction heating structure 4 is an annular metal sheet, which is disposed between the fan 2 and the air duct 1 and is coaxially arranged with the fan 2.

[0068] The ring-shaped metal sheet generates eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure 3. When the eddy currents flow inside the induction heating structure 4, the electrical energy is converted into heat energy (Joule heating) due to the resistance of the metal. This also allows the induction heating structure 4 to cover the entire inner wall of the air duct 1 in the circumferential direction, resulting in a better and more uniform heating effect, and also avoids occupying too much space in the air duct 1.

[0069] In one specific embodiment, the annular metal sheet is interference-fitted with the inner circumferential wall of the air duct 1.

[0070] In another specific embodiment, the annular metal sheet is bonded to the inner peripheral wall of the air duct 1.

[0071] Alternatively, the inductive heating structure 4 can be a metal sheet corresponding to the electromagnetic induction structure 3, and the inductive heating structure 4 can be bonded to the inner peripheral wall of the air duct 1 or embedded in the inner peripheral wall of the air duct 1.

[0072] In one embodiment, the annular metal sheet is disposed in contact with the inner peripheral wall of the air duct 1.

[0073] The annular metal sheet is abutted against the inner circumferential wall of the air duct 1, which can reduce the space occupied by the annular metal sheet in the air duct 1, and also allow the induction heating structure 4 to be closer to the electromagnetic induction structure 3. This allows the induction heating structure 4 to be closer to the electromagnetic induction structure 3 so that after the electromagnetic induction structure 3 is energized, the induction heating structure 4 can quickly generate eddy currents under the action of the alternating magnetic field generated by the electromagnetic induction structure 3, thereby quickly converting electrical energy into heat energy.

[0074] As an alternative implementation, the annular metal sheet can also be spaced apart from the inner peripheral wall of the air duct 1, and the space between them can be made smaller.

[0075] In one embodiment, the induction heating structure 4 further includes a heating element 41, which is disposed on one end of the fan blade 21 near the wall of the air duct 1; the heating element 41 is made of metal material, or the surface of the heating element 41 is provided with a metal coating.

[0076] The heating element 41 is located on the fan blade 21 at one end near the wall of the air duct 1. The alternating magnetic field generated by the coil of the electromagnetic induction structure 3 penetrates the air duct 1 and the heating element 41. Since the heating element 41 is made of metal material, or the surface of the heating element 41 is coated with metal, the alternating magnetic field can generate eddy currents inside the heating element 41. When the eddy currents flow inside the heating element 41, due to the resistance of the metal, electrical energy will be converted into heat energy (Joule heat). The air passing through the electromagnetic induction structure 3 will carry away the heat from the induction heating structure 4 to form hot air, thereby achieving the purpose of heating the air.

[0077] In one specific embodiment, the induction heating structure 4 further includes a heating element 41, which is disposed on one end of the fan blade 21 near the wall of the air duct 1; the heating element 41 is made of metal material.

[0078] In another specific embodiment, the induction heating structure 4 further includes a heating element 41, which is disposed on the fan blade 21 at one end near the wall of the air duct 1; the surface of the heating element 41 is provided with a metal coating.

[0079] In another specific embodiment, the induction heating structure 4 further includes a heating element 41, which is disposed on one end of the fan blade 21 near the wall of the air duct 1; the heating element 41 is made of metal material and the surface of the heating element 41 is provided with a metal coating.

[0080] In one embodiment, the heating element 41 has a sheet-like structure.

[0081] The heating element 41 has a sheet-like structure, which is simple, easy to form and easy to connect. It can also generate eddy currents under the action of the alternating magnetic field generated by the coil of the electromagnetic induction structure 3, thereby converting electrical energy into heat energy.

[0082] In one embodiment, the heating element 41 is curved in an arc shape, and the arc of the heating element 41 is consistent with the arc of the air duct 1.

[0083] The heating element 41 is curved in an arc shape and has the same curvature as the air duct 1. This can prevent the heating element 41 from interfering with the air duct 1 when the fan blade 21 rotates, and prevent the heating element 41 from generating noise when the fan blade 21 rotates. It can also increase the area close to the electromagnetic induction structure 3, and make it easier to be heated faster.

[0084] In one embodiment, the fan blade 21 is made of a metal material, or the surface of the fan blade 21 is provided with a metal coating.

[0085] The fan blade 21 is made of metal, or the surface of the fan blade 21 is coated with a metal coating. The alternating magnetic field generated by the coil of the electromagnetic induction structure 3 penetrates the air duct 1 and the fan blade 21. The alternating magnetic field can generate eddy currents inside the fan blade 21. When the eddy currents flow inside the fan blade 21, due to the resistance of the metal, they will convert electrical energy into heat energy (Joule heating). The air passing through the fan blade 21 will carry away the heat from the induction heating structure 4 to form hot air, thereby achieving the purpose of heating the air. Therefore, making the fan blade 21 of metal, or having a metal coating on the surface of the fan blade 21, can also increase the heating area.

[0086] In one specific embodiment, the fan blade 21 is made of a metallic material.

[0087] In another specific embodiment, the surface of the fan blade 21 is provided with a metal coating.

[0088] In yet another specific embodiment, the fan blade 21 is made of a metal material and the surface of the fan blade 21 is provided with a metal coating.

[0089] In one embodiment, the heating element 41 is a flanged structure disposed at the end of the fan blade 21.

[0090] The heating element 41 is a flanged structure set at the end of the fan blade 21, which can be integrally formed with the fan blade 21, which simplifies the structure and eliminates the need for secondary processing of the fan blade 21, thereby simplifying the manufacturing process.

[0091] Alternatively, the heating element 41 can be fixedly connected to the end of the fan blade 21 by welding.

[0092] As an alternative implementation, the heating element 41 can also be fixedly connected to the end of the fan blade 21 by adhesive bonding.

[0093] In one embodiment, the electromagnetic induction structure 3 is attached to the outer peripheral wall of the air duct 1.

[0094] The electromagnetic induction structure 3 is attached to the outer wall of the air duct 1, which allows it to be closer to the induction heating structure 4, enabling it to be electromagnetically heated more quickly.

[0095] In a specific implementation, the electromagnetic induction structure 3 includes a coil and a bracket. The coil is mounted on the bracket, and the bracket is connected to the outer peripheral wall of the air duct 1.

[0096] In one specific embodiment, the coil is arranged in a serpentine pattern.

[0097] In one embodiment, the electromagnetic induction structure 3 has at least two, and the at least two electromagnetic induction structures 3 are arranged circumferentially on the wall of the air duct 1.

[0098] The electromagnetic induction structure 3 has at least two arranged at intervals along the circumference, which can provide better heating effect.

[0099] In a specific implementation, the electromagnetic induction structure 3 may have three circumferentially spaced apart, or four circumferentially spaced apart, or more circumferentially spaced apart.

[0100] In a specific implementation, the fan 2 also includes a drive structure for driving the fan blades 21 to rotate.

[0101] According to an embodiment of the present invention, another aspect provides an air handling device, including the aforementioned head unit 100. The head unit 100 includes an air duct 1, a fan 2, an electromagnetic induction structure 3, and an induction heating structure 4; the fan 2 includes a fan blade 21, which is rotatably disposed within the air duct 1; the electromagnetic induction structure 3 is disposed on the air duct 1 and located on the outer peripheral wall of the air duct 1; the induction heating structure 4 is made of a metal material and is disposed on the inner peripheral wall of the air duct 1, and / or, the induction heating structure 4 is disposed on the fan blade 21.

[0102] The fan blade 21 is rotatably mounted inside the air duct 1, driving the surrounding airflow so that air enters from the air inlet of the air duct 1 and exits from the air outlet of the air duct 1, thereby accelerating air circulation and improving ventilation. The electromagnetic induction structure 3 contains a coil. When alternating current passes through the coil, an alternating magnetic field is generated in the coil. The direction and intensity of the magnetic field change periodically with the current frequency. The alternating magnetic field generated by the coil of the electromagnetic induction structure 3 penetrates the air duct 1 and the induction heating structure 4. Since the induction heating structure 4 is made of metal, the alternating magnetic field can generate eddy currents inside the induction heating structure 4. When the eddy currents flow inside the induction heating structure 4, due to the resistance of the metal, electrical energy is converted into heat energy (Joule heating), which is then absorbed by the electromagnetic induction structure. The air in structure 3 carries away the heat from induction heating structure 4, forming hot air, thus achieving the purpose of heating the air. Furthermore, since electromagnetic induction structure 3 uses alternating current, its energy consumption is low. However, because the alternating magnetic field generated on electromagnetic induction structure 3 directly acts on induction heating structure 4 for heating, it does not require heat transfer through mediums such as air or flames, resulting in high heating efficiency. The alternating magnetic field generated on electromagnetic induction structure 3 directly acts on induction heating structure 4 for heating. This alternating magnetic field can be generated simply by passing alternating current through the coil of electromagnetic induction structure 3. The alternating magnetic field also penetrates air duct 1 and induction heating structure 4 quickly and in real time. Therefore, the heating effect of electromagnetic induction structure 3 has a fast response.

[0103] The air handling unit also includes a body 200, to which the head assembly 100 is rotatably connected.

[0104] In one embodiment, the air handling device is a fan.

[0105] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A head assembly, characterized in that, include: Air duct (1); A fan (2), the fan (2) including a fan blade (21), the fan blade (21) being rotatably disposed within the air duct (1); Electromagnetic induction structure (3), the electromagnetic induction structure (3) is disposed on the air duct (1) and located on the outer periphery of the air duct (1); The induction heating structure (4) is made of metal material and is disposed on the inner peripheral wall of the air duct (1), and / or the induction heating structure (4) is disposed on the fan blade (21).

2. The head assembly according to claim 1, characterized in that, The induction heating structure (4) includes a metal coating disposed on the inner peripheral wall of the air duct (1).

3. The head assembly according to claim 1, characterized in that, The induction heating structure (4) is an annular metal sheet, which is disposed between the fan (2) and the air duct (1) and is coaxial with the fan (2).

4. The head assembly according to claim 3, characterized in that, The annular metal sheet is disposed in contact with the inner peripheral wall of the air duct (1).

5. The head assembly according to any one of claims 1 to 4, characterized in that, The induction heating structure (4) further includes a heating element (41), which is disposed on one end of the fan blade (21) near the wall of the air duct (1); the heating element (41) is made of metal material, or the surface of the heating element (41) is provided with a metal coating.

6. The head assembly according to claim 5, characterized in that, The heating element (41) has a sheet-like structure; And / or, the heating element (41) is curved in an arc shape, and the arc of the heating element (41) is consistent with the arc of the air duct (1).

7. The head assembly according to claim 5, characterized in that, The fan blade (21) is made of metal material, or the surface of the fan blade (21) is coated with a metal coating.

8. The head assembly according to claim 6, characterized in that, The heating element (41) is a flanged structure disposed at the end of the fan blade (21).

9. The head assembly according to any one of claims 1 to 4 or 6 to 8, characterized in that, The electromagnetic induction structure (3) is attached to the outer wall of the air duct (1); And / or, the electromagnetic induction structure (3) has at least two, and the at least two electromagnetic induction structures (3) are arranged circumferentially on the wall of the air duct (1).

10. An air handling device, characterized in that, Includes the head assembly (100) according to any one of claims 1 to 9.

11. The air handling equipment according to claim 10, characterized in that, The air handling equipment is a fan.

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