Heating device and air handling unit

Abstract

The application provides a heating device and an air treatment equipment, relates to the technical field of household appliances, and aims to solve the technical problem of poor heating effect caused by uneven heating of a heating unit. The heating device comprises a framework and a heating body. The framework is annular. The heating body comprises at least two heating sections and at least one connecting section. The at least two heating sections are located in the annular space of the framework and are sequentially and spacedly arranged along the radial direction of the framework. The connecting section is used for connecting the adjacent two heating sections. The heating body is configured to be electrically connected with a power supply to generate heat. The application can improve the heating uniformity of the heating device and improve the heating effect.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a heating device and an air handling equipment. Background Technology

[0002] As people's living standards improve, their requirements for indoor air quality and comfort are increasing. They demand not only suitable indoor temperature but also appropriate humidity and air quality. For example, people often use humidifiers with heating devices. These devices heat the air blown onto the filter element, causing the moisture on the filter to evaporate quickly, thus regulating indoor humidity to meet users' needs for indoor air comfort.

[0003] In related technologies, heating devices are usually single heating elements, which are typically flat or cylindrical and placed in the airflow path. The heating element heats up the surrounding air by heating itself, thereby heating the air flowing through the heating element.

[0004] However, in related technologies, heating devices suffer from uneven heating, resulting in poor heating performance. Utility Model Content

[0005] In view of the above problems, this application provides a heating device and an air handling equipment, which aim to improve the heating uniformity of the heating device and thus improve the heating effect.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] This application provides a heating device, including: a frame and a heating element. The frame is annular, and the heating element includes at least two heating segments and at least one connecting segment. The at least two heating segments are located within the annular space of the frame and are arranged sequentially at intervals along the radial direction of the frame. The connecting segment is used to connect two adjacent heating segments. The heating element is configured to be electrically connected to a power source to generate heat.

[0008] In this embodiment, a frame and a heating element are provided. The frame is ring-shaped, and the heating element includes at least two heating segments and at least one connecting segment. The at least two heating segments are located within the ring-shaped space of the frame and are arranged sequentially at intervals along the radial direction of the frame. This allows the frame to cover areas of different radii, thereby forming a gradient and fully covered heating area. This ensures that heat is evenly diffused along the radial direction of the frame, ensuring that the medium (e.g., air) flowing through the ring-shaped space of the frame is heated more fully. In addition, multiple heating segments are connected in an orderly manner and integrated within the ring-shaped space of the frame, without needing to occupy additional space outside the ring-shaped space, thereby improving the structural compactness of the heating device.

[0009] In some embodiments, a plurality of heat sinks are further included, which are arranged at intervals along the length of the heating segment and are in contact with at least a portion of the structure of the heating segment.

[0010] In this way, the heat sink increases the heat exchange area with the medium (such as air), thereby increasing the heating coverage density and area, and further improving the heating effect.

[0011] In some embodiments, the heating element is an electric heating tube; and / or,

[0012] The heat sink is a heat sink fin or a heat sink plate.

[0013] In this way, while improving heating efficiency and heat dissipation, the safety of the heating device is enhanced and the cost is reduced.

[0014] In some embodiments, the heating device further includes a formaldehyde removal membrane layer configured to remove harmful substances from the airflow passing through at least one of the heating element and the heat dissipation element.

[0015] In this way, the formaldehyde-removing membrane can actively adsorb or decompose harmful substances such as formaldehyde in the medium flowing through it, thereby improving air quality.

[0016] In some embodiments, the formaldehyde-removing film is attached to the surface of each of the heat sinks.

[0017] This improves the integration of the heating device, reduces its size, and saves space costs.

[0018] In some embodiments, the surface of each heat sink is coated with an activated carbon layer, which forms the formaldehyde removal film layer.

[0019] In this way, while ensuring the removal of harmful substances such as formaldehyde from the flowing medium, the installation process is simplified, further reducing costs.

[0020] The second aspect of this application provides an air handling device, including: a main unit, a filter element, a fan, and a heating device provided in the first aspect. The main unit has an internal air duct, and an air inlet and an air outlet communicating with the air duct are provided on the side wall of the main unit. The air inlet is connected to the air inlet end of the air duct, and the air outlet is connected to the air outlet end of the air duct.

[0021] The fan, the filter element, and the heating device are all located in the air duct, with the heating device located upstream of the filter element to heat the airflow in the air duct.

[0022] In the air handling equipment provided in this application embodiment, a heating device is installed inside the main unit, located upstream of the filter element. The heating element in the heating device heats the airflow blown towards the filter element. At the same time, the heating uniformity of the heating device ensures the stability of the airflow temperature towards the filter element, thereby improving the cold evaporation efficiency of moisture on the filter element surface and ensuring the stability of the mist output of the air handling equipment. This avoids the mist output being affected by the ambient temperature, thereby improving air quality. In addition, placing the heating device in the air duct improves the utilization rate of the space inside the main unit, reduces the size of the equipment, and thus reduces space costs.

[0023] In some embodiments, the heating device is located between the fan and the air outlet.

[0024] In this way, the heating device first heats the airflow in the duct and then blows it onto the filter element, which can ensure the amount of mist output while extending the service life of the filter element.

[0025] In some embodiments, the heating device is disposed around the outer periphery of the filter element.

[0026] This increases the coverage area of ​​the heating device, which can improve the temperature uniformity of the filter element's perimeter, thereby further increasing the amount of mist output.

[0027] In some embodiments, the air duct has a water storage tray, the filter element is located on the water storage tray, and the water storage tray has an air outlet structure near the circumferential edge of the top of the main unit. The air outlet structure includes a plurality of air outlet holes arranged at circumferential intervals along the air duct, so that the airflow in the air duct blows towards the filter element through the air outlet holes.

[0028] In this way, the water storage tray collects the water dripping from the filter element, preventing water from dripping onto the electronic components inside the main unit and affecting their service life and operational reliability. In addition, the air outlet is arranged around the circumference of the filter element, so that the airflow blowing towards the filter element can cover the peripheral wall of the filter element, thereby ensuring the amount of mist output.

[0029] In some embodiments, the air handling equipment further includes a water tank disposed above the main unit, and the water tank can selectively supply water to the filter element to wet the filter element.

[0030] This keeps the filter element constantly wet, thereby improving the reliability and stability of the mist output.

[0031] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the heating device and air handling equipment provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the structure of a heating device provided in an embodiment of this application;

[0034] Figure 2 This is a cross-sectional structural diagram of the humidifier provided in the embodiments of this application;

[0035] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10-Humidifier;

[0038] 100 - Main unit; 110 - Air duct; 120 - Air inlet; 130 - Air outlet;

[0039] 200 - Heating device; 210 - Heating element; 211 - Heating section; 212 - Connecting section;

[0040] 220 - Activated carbon layer; 230 - Skeleton; 240 - Heat sink;

[0041] 300-fan;

[0042] 400-Filter Cartridge;

[0043] 500 - Water storage tray; 510 - Air outlet structure;

[0044] 600-Water Tank. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0046] This application provides an air handling device, which includes, but is not limited to, a humidifier. In this document, a heater is used as an example of an air handling device for explanation and description.

[0047] This humidifier increases the humidity in the air by wetting the filter element and then using a fan to drive airflow into the duct. As the airflow passes over the wet filter element, it promotes the evaporation of moisture from the filter element's surface.

[0048] To improve the evaporation efficiency of moisture on the filter surface, humidifiers are usually equipped with a heating device. The heating device heats the air blown towards the heater filter, causing the moisture on the filter to evaporate quickly, thereby regulating the humidity of the indoor air to meet the user's needs for indoor air comfort.

[0049] The heating device is usually a single heating element, which is typically flat or cylindrical and placed in the airflow path. The heating element heats up the surrounding air by heating itself, thereby heating the air flowing through the heating element.

[0050] However, since the heating device is a single heating element, it can cause local overheating during the heating process, while other areas are not hot enough. Therefore, there is a technical problem of uneven heating and poor heating effect.

[0051] To address the aforementioned technical deficiencies, this application provides a heating device and an air handling equipment, aiming to improve the heating uniformity of the heating device, thereby improving the heating uniformity of the airflow passing through the heating device in the air handling equipment, and thus improving the heating effect.

[0052] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0053] This application provides a heating device, which includes, but is not limited to, applications in air handling equipment such as heaters. The following description will take the application of the heating device in a humidifier as an example.

[0054] Please refer to Figure 1As shown, the heating device 200 provided in this embodiment includes a frame 230 and a heating element 210. The frame 230 is annular, for example, circular. The heating element 210 includes at least two heating segments 211 and at least one connecting segment 212. The at least two heating segments 211 are located within the annular space of the frame 230 and are arranged sequentially at intervals along the radial direction of the frame 230. The connecting segment 212 is used to connect two adjacent heating segments 211. The heating element 210 is configured to be electrically connected to a power source to generate heat.

[0055] For example, two adjacent heating segments 211 can be connected by a connecting segment 212, and can be in the form of a U-shape or an S-shape. The adjacent heating segments 211 can be detachably connected to the connecting segment 212 that connects them, or they can be an integral structure. When the adjacent heating segments 211 and the connecting segment 212 that connects them are detachably connected, the number of heating segments 211 that are suitable for the specific scenario can be adapted, so that the heating element 210 can be applied to different scenarios.

[0056] In this embodiment, a frame 230 and a heating element 210 are provided. The frame 230 is annular, and the heating element 210 includes at least two heating segments 211 and at least one connecting segment 212. The at least two heating segments 211 are located within the annular space of the frame 230 and are arranged sequentially at intervals along the radial direction of the frame 230. This can cover areas of different radii within the frame 230, thereby forming a gradient and fully covered heating area. This allows heat to diffuse evenly along the radial direction of the frame 230, ensuring that the medium (e.g., air) flowing through the annular space of the frame 230 is heated more fully. In addition, multiple heating segments 211 are connected in an orderly manner and integrated within the annular space of the frame 230, without needing to occupy additional space outside the annular space, thereby improving the structural compactness of the heating device 200.

[0057] In some embodiments, a plurality of heat sinks 240 are also included. The plurality of heat sinks 240 are arranged sequentially at intervals along the length direction of the heating section 211 and are in contact with at least a portion of the structure of the heating section 211. In this way, the heat sinks 240 increase the heat exchange area with the medium (such as air), thereby increasing the heating coverage density and area, and further improving the heating effect.

[0058] like Figure 1 As shown, the heating element 210 can be an electric heating tube, and the connecting section 212 can also be a heating element. The heating section 211 is straight, while the connecting section 212 is arc-shaped. In addition, the heat sink 240 can be a heat sink or a heat sink plate. In this way, while improving the heating efficiency and heat dissipation effect, the safety of the heating device 200 is improved and the cost is reduced.

[0059] In some embodiments, the heating device 200 further includes a formaldehyde removal membrane layer configured to remove harmful substances from the airflow passing through at least one of the heating element 210 and the heat sink 240. In this way, the formaldehyde removal membrane layer can actively adsorb or decompose harmful substances such as formaldehyde in the medium flowing through it, thereby improving air quality.

[0060] For example, the formaldehyde removal film is attached to the surface of each heat sink 240, which improves the integration of the heating device 200, reduces the volume of the heating device 200, and saves space costs.

[0061] In another example, each heat sink 240 is coated with an activated carbon layer 220, which forms a formaldehyde removal film. This not only ensures the removal of harmful substances such as formaldehyde from the flowing medium, but also saves on installation procedures and further reduces costs.

[0062] Please refer to Figure 2 and Figure 3 As shown in the embodiment of this application, an air handling device is also provided. This air handling device includes, but is not limited to, a humidifier 10. The humidifier 10 includes a main unit 100, a fan 300, and a filter element 400. The main unit 100 has an internal air duct 110. An air inlet 120 and an air outlet 130 communicating with the air duct 110 are provided on the side wall of the main unit 100. The air inlet 120 is located upstream of the air duct 110, and the air outlet 130 is located downstream of the air duct 110. The air inlet 120 is connected to the air inlet end of the air duct 110, and the air outlet 130 is connected to the air outlet end of the air duct 110. The fan 300 is disposed in… In the air duct 110, the filter element 400 is installed on the main unit 100, and the air outlet 130 is located downstream of the filter element 400. The filter element 400 is in a wet state, that is, the filter element 400 has a certain moisture content. In this way, when the fan 300 is running, the outside air can enter the air duct 110 through the air inlet 120, and be blown out through the air outlet 130 after passing through the filter element 400. The fan 300 can increase the intensity and flow rate of the airflow in the air duct 110, so that the airflow can promote the evaporation of moisture on the surface of the filter element 400 and enter the air with the airflow to increase the humidity of the air and achieve the purpose of humidifying the air.

[0063] like Figure 2 As shown, the humidifier 10 also includes a water tank 600, which is located above the main unit 100. The water tank 600 can selectively supply water to the filter element 400 to wet the filter element 400. In this way, the filter element 400 can always be kept wet, thereby improving the reliability and stability of the mist output.

[0064] The water tank 600 is used to store the humidifying water of the humidifier 10. The humidifying water in the water tank 600 can be pure water or an aqueous solution containing additives such as mixed fragrances, bactericides, and essential oils. This application embodiment does not specifically limit this. The liquid used in the humidifying filter 400 will be referred to as water below, and will not be specifically described.

[0065] The bottom wall of the water tank 600 has an openable and closable drain hole. Since the water tank 600 is located above the filter element 400, when the humidifier 10 is working and water is added to the water tank 600, the drain hole can be opened to allow water in the water tank 600 to drip down and flow onto the filter element 400 to wet it. When the humidifier 10 stops working or when water is not needed from the water tank 600, the drain hole is closed, meaning water in the water tank 600 stops dripping onto the filter element 400. In this way, the fan 300 can rotate under the drive of the motor. The air is rotated to drive airflow and accelerate the flow rate of the airflow entering the air duct 110 through the air inlet 120. The flowing airflow blows through the air duct 110 onto the wetted filter element 400. The airflow passing through the filter element 400 can naturally evaporate the moisture on the filter element 400 and discharge it into the air through the air outlet 130, thereby increasing the humidity of the air. In addition, this humidification method can avoid the formation of visible water mist, thereby reducing the deposition of visible water mist on furniture, reducing bacterial growth, and also avoiding potential damage to furniture and floors caused by water mist deposition.

[0066] In addition, such as Figure 2 and Figure 3 As shown, the air inlet 120 can be disposed on the peripheral wall near the bottom of the main unit 100, and the air outlet 130 is disposed on at least one of the top wall and / or peripheral wall near the top of the main unit 100, so that the airflow is as follows: Figure 1 The dotted arrows in the image flow to ensure that the airflow from the outlet 130 can fully contact and mix with the air, thereby increasing the humidity in the air.

[0067] Such as 2 and Figure 3 As shown, at least a portion of the filter element 400 is located inside the main unit 100. This improves the space utilization rate inside the main unit 100, enhances the structural compactness of the humidifier 10, reduces the overall volume of the humidifier 10, and thus reduces space costs.

[0068] In addition, such as Figure 2 and Figure 3As shown, the air duct 110 has a water storage tray 500, and the filter element 400 is located in the water storage tray 500. The water storage tray 500 has an air outlet structure 510 near the circumferential edge of the top of the main unit 100. The air outlet structure 510 includes a plurality of air outlet holes arranged circumferentially along the air duct 110, so that the airflow in the air duct 110 blows towards the filter element 400 through the air outlet holes. In this way, the water storage tray 500 collects the water dripping from the filter element 400, preventing the water on the filter element 400 from dripping onto the electronic components in the main unit 100 and affecting their service life and operational reliability. In addition, the air outlet holes are arranged circumferentially along the filter element 400, so that the airflow blowing towards the filter element 400 can cover the peripheral wall of the filter element 400, thereby ensuring the amount of mist output.

[0069] Understandably, the bottom of the water storage tray 500 has a water-holding trough, and the bottom of the filter element 400 is immersed in the water stored in the trough to keep the filter element 400 always moist. In addition, the water tank 600 at the top of the filter element 400 supplies water to the top of the filter element 400. In this way, water flows from the top to the bottom of the filter element 400 to ensure that the filter element 400 is wetted evenly.

[0070] Please continue to refer to Figure 2 and Figure 3 As shown, the humidifier 10 also includes a heating device 200, which is located upstream of the filter element 400. The heating device 200 includes a heating element 210, which is configured to heat the airflow blown toward the filter element 400. For example, the heating element 210 includes, but is not limited to, at least one of an electric heating tube, a heating film, and a resistance wire. Taking an electric heating tube as an example, when the heating element 210 is electrically connected to a power source, the heating element 210 generates heat. The generated heat can uniformly increase the temperature of the airflow blown toward the filter element 400, so that the temperature of the airflow blown toward the filter element 400 is kept within a stable range and is not affected by the ambient temperature. This increases the evaporation efficiency of moisture on the surface of the filter element 400 and ensures the stability of the mist output.

[0071] In addition, the heating device 200 also includes a formaldehyde removal membrane layer, which is configured to remove harmful substances in the airflow blown toward the filter element 400. The formaldehyde removal membrane layer includes, but is not limited to, an activated carbon layer 220. Before the airflow blows toward the filter element 400, it passes through the formaldehyde removal membrane layer to remove harmful substances such as formaldehyde in the airflow, thereby improving air quality.

[0072] Therefore, in the humidifier 10 provided in this application embodiment, by setting a heating device 200 in the main unit 100, the heating device 200 is located upstream of the filter element 400. The heating element in the heating device 200 uniformly heats the airflow blown towards the filter element 400, ensuring the stability of the airflow temperature towards the filter element 400, improving the cold evaporation efficiency of the moisture on the surface of the filter element 400, thereby improving the stability of the mist output of the humidifier 10, avoiding the influence of ambient temperature on the mist output, and thus improving the humidification effect. In addition, the formaldehyde removal membrane layer in the heating device 200 can simultaneously adsorb harmful substances such as formaldehyde in the airflow blown towards the filter element 400, thereby improving air quality. Moreover, the heating and formaldehyde removal functions are integrated into one unit and set in the main unit 100, improving the utilization rate of the space inside the main unit 100 and the compactness of the structure, reducing the size of the equipment, thereby reducing space costs.

[0073] In some embodiments, such as Figure 2 and Figure 3 As shown, the heating device 200 is located in the air duct 110 and between the air outlet 130 and the fan 300. In this way, the heating device 200 first heats the airflow in the air duct 110 and removes harmful substances before blowing it onto the filter element 400. This can ensure the amount of mist output while extending the service life of the filter element 400. In addition, placing the heating device 200 in the air duct 110 further improves the space utilization and structural compactness of the main unit 100.

[0074] It should be noted that the heating device 200 is installed in the air duct 110, so that the airflow in the air duct 110 is heated and harmful substances such as formaldehyde are removed, without affecting the flow of air in the air duct 110.

[0075] In some embodiments, please refer to Figure 1 As shown, the heating device 200 also includes an annular frame 230 and multiple heat sinks 240. The frame 230 is connected to the peripheral wall of the air duct 110. The heating element 210, the formaldehyde removal film layer, and the multiple heat sinks 240 are all located inside the frame 230 and connected to the frame 230. The multiple heat sinks 240 are arranged radially at intervals along the frame 230 and are in contact with at least a portion of the structure of the heating element 210. In this way, the heating device 200 is located on the path of the airflow in the air duct 110. Without affecting the airflow, the space occupied by the heating device 200 is saved, thereby reducing the size of the equipment and saving space costs.

[0076] For example, if the cross-sectional profile of the air duct 110 is circular, then the frame 230 is a circular ring structure that matches the profile of the air duct 110. The heating element 210 is, for example, an electric heating tube, and the electric heating tube is arranged in a U-shape, S-shape, or other structure along the radial plane of the frame 230. The heat sink 240 is a heat sink block or heat sink plate. Multiple heat sinks 240 are arranged at intervals along the radial direction of the frame 230, that is, there is a gap between adjacent heat sinks 240 that allows airflow to pass through. The heat sink 240 is in contact with at least a part of the structure of the electric heating tube, so that the heat generated by the electric heating tube can be directly conducted to the heat sink 240 and dispersed into the air duct 110 through the heat sink 240 to increase the heat radiation area and thereby improve the efficiency of heating airflow.

[0077] like Figure 1 As shown, the heating element 210 is an electric heating tube, and the electric heating tube is U-shaped. The heat dissipation element 240 is a heat dissipation block, heat dissipation plate or heat dissipation fin. Multiple heat dissipation blocks are arranged in sequence at intervals along the extension direction of the electric heating tube, which increases the heat radiation area of ​​the heat generated by the electric heating tube.

[0078] To further enhance integration, in this embodiment, a formaldehyde-removing film is attached to the surface of the heat sink 240. For example, the formaldehyde-removing film is attached to the surface of the heat sink 240 by means of bonding, spraying, etc. This improves the integration of the heating device 200, reduces the volume of the heating device 200, and saves space costs. In addition, when the airflow passes through the surface of the heat sink 240, it is filtered by the formaldehyde-removing film, thereby achieving the purpose of removing harmful substances such as formaldehyde from the airflow.

[0079] For example, an activated carbon layer 220 is formed on the surface of each heat sink 240 by a spraying process. The activated carbon layer 220 forms a formaldehyde removal film layer. This saves on the installation process and further reduces the cost. In addition, it can improve the reliability and stability of the activated carbon layer 220 on the surface of the heat sink 240 and avoid the problem of the activated carbon layer 220 easily falling off the surface of the heat sink 240.

[0080] In other embodiments, the heating device 200 is disposed around the outer periphery of the filter element 400. In this way, the heat generated by the heating element 210 in the heating device 200, in addition to heating the airflow, can also radiate heat to the filter element 400, thereby heating the filter element 400, which can improve the temperature uniformity of the filter element 400's peripheral wall, increase the evaporation of moisture on the filter element 400, and further improve the mist output. In addition, the coverage area of ​​the heating device 200 is increased, thereby improving the efficiency of heating and removing harmful substances such as formaldehyde.

[0081] In the specific implementation of the humidifier provided in this application embodiment, taking the heating device located in the air duct as an example, the power supply of the humidifier is turned on to start the fan in the humidifier. The fan generates airflow, allowing external air to enter through the air inlet. The air entering the air duct first passes through the heating device to heat the airflow and remove harmful substances such as formaldehyde from the airflow. Under the action of the fan, the airflow in the air duct flows upward along the air duct and passes over the surface of the filter element. The action of the fan and the action of the heating device can increase the temperature of the filter element surface and the flow rate of the airflow on the filter element surface, and keep the temperature of the filter element surface relatively stable. The airflow blowing towards the filter element can evaporate the water on the surface of the filter element and blow it out from the air outlet to increase the humidity in the air, reduce the influence of ambient temperature on the amount of mist output, and improve the mist output and formaldehyde removal effect, thereby improving air humidity and air quality.

[0082] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0083] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0084] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0085] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heating device, characterized in that, include: The frame (230) and the heating element (210) are annular. The heating element (210) includes at least two heating segments (211) and at least one connecting segment (212). The at least two heating segments (211) are located within the annular space of the frame (230) and are arranged sequentially at intervals along the radial direction of the frame (230). The connecting segment (212) is used to connect two adjacent heating segments (211). The heating element (210) is configured to be electrically connected to a power source for generating heat.

2. The heating device according to claim 1, characterized in that, It also includes a plurality of heat sinks (240), which are arranged sequentially at intervals along the length of the heating segment (211) and are in contact with at least a portion of the structure of the heating segment (211).

3. The heating device according to claim 2, characterized in that, The heating element (210) is an electric heating tube; and / or, The heat sink (240) is a heat sink fin or a heat sink plate.

4. The heating device according to claim 2, characterized in that, The heating device further includes a formaldehyde removal membrane layer configured to remove harmful substances from the airflow passing through at least one of the heating element (210) and the heat sink (240).

5. The heating device according to claim 4, characterized in that, The formaldehyde removal film is attached to the surface of each of the heat sinks (240).

6. The heating device according to claim 5, characterized in that, Each of the heat sinks (240) is coated with an activated carbon layer (220), which forms the formaldehyde removal film layer.

7. An air handling device, characterized in that, include: The host (100), filter element (400), fan (300) and heating device as described in any one of claims 1-6, wherein the host (100) has an internal air duct (110), and the host (100) has an air inlet (120) and an air outlet (130) connected to the air duct (110) on its side wall, and the air inlet (120) is connected to the air inlet end of the air duct (110), and the air outlet (130) is connected to the air outlet end of the air duct (110); The fan (300), the filter element (400) and the heating device are all located in the air duct (110), and the heating device is located upstream of the filter element (400) to heat the airflow in the air duct (110).

8. The air handling equipment according to claim 7, characterized in that, The heating device is located between the fan (300) and the air outlet (130).

9. The air handling equipment according to claim 7, characterized in that, The heating device is arranged around the outer periphery of the filter element (400).

10. The air handling equipment according to claim 7, characterized in that, The air duct (110) has a water storage tray (500), and the filter element (400) is located on the water storage tray (500). The water storage tray (500) has an air outlet structure (510) near the circumferential edge of the top of the main unit (100). The air outlet structure (510) includes a plurality of air outlet holes arranged circumferentially along the air duct (110) so that the airflow in the air duct (110) is blown toward the filter element (400) through the air outlet holes.

11. The air handling equipment according to claim 7, characterized in that, The air handling equipment also includes a water tank (600) which is located above the main unit (100) and can selectively supply water to the filter element (400) to wet the filter element (400).

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