Warm air device

Abstract

The utility model provides an air heater which comprises an air heater body and an induction coil. Wherein the warm air body comprises an installation shell, a heating assembly and a controller, and the heating assembly is installed in the installation shell and electrically connected with the controller. The induction coil is installed in the installation shell and electrically connected with the controller. The induction coil can generate a power-off induction signal when a human body is about to approach the mounting shell and feed back the signal to the controller, so that the controller timely controls the heating assembly to be powered off when a user abnormally uses the heating assembly, and the electric shock risk caused by the fact that a child touches the electrified heating assembly with fingers or a sharp conductive object is avoided; the risk of electric shock caused by the fact that a user forgets to disconnect a power plug and touches an electrified heating assembly when disassembling and washing the heating device is avoided, and the safety of the heating device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of warm air household appliances, in particular to a warm air device. Background Art

[0002] At present, some heaters or fans with hot air on the market have some safety hazards when used by users. For example, some hot air fans with rear heating wire solutions have a large gap in the rear grille, and children may touch the live heating wire with their fingers and get an electric shock. Or when users remove and clean the rear grille of the hot air fan, they forget to disconnect the power plug, and there is also a risk of electric shock when touching the heating wire. Utility Model Content

[0003] Based on this, it is necessary to provide a heating device to address the problem that both the heater and the fan with hot air in the prior art have some safety hazards when the user uses them abnormally.

[0004] The technical solution is as follows:

[0005] In one aspect, a heating device is provided, comprising:

[0006] A heater body, the heater body comprising a mounting shell, a heating component and a controller, the heating component being mounted in the mounting shell and electrically connected to the controller;

[0007] an induction coil, the induction coil being installed in the installation shell and being electrically connected to the controller;

[0008] When the human body moves toward the direction approaching the mounting shell and is separated from the mounting shell by a first preset distance, the induction coil generates a power-off induction signal and feeds back to the controller; when the human body moves toward the direction away from the mounting shell and is separated from the mounting shell by a second preset distance, the induction coil generates a power-on induction signal and feeds back to the controller.

[0009] The technical solution is further described below:

[0010] In one embodiment, the mounting shell is provided with an air flow channel, one end of the air flow channel is set as an air inlet, the induction coil is located on a side of the heating component close to the air inlet, and the axis of the induction coil is set parallel to the axis of the air flow channel.

[0011] In one of the embodiments, along the axial direction of the airflow channel, the projection area of ​​the heating component is located inside the projection area of ​​the induction coil.

[0012] In one embodiment, the mounting shell includes a shell body and a rear mesh cover, the shell body is provided with the air flow channel, the rear mesh cover is provided on the air inlet, and the rear mesh cover is provided with a dot matrix grille for connecting the external environment and the air inlet.

[0013] In one of the embodiments, the dot matrix grid has a plurality of air inlet holes, and along the axial direction of the air flow channel, the projection area of ​​each of the air inlet holes is located inside the projection area of ​​the induction coil.

[0014] In one embodiment, the heating device also includes a power-off protection component electrically connected to the controller, the power-off protection component is installed in the air flow channel, and the rear mesh cover is provided with a trigger part corresponding to the power-off protection component; when the rear mesh cover is arranged at the air inlet, the trigger part is connected to the power-off protection component, the power-off protection component generates a first power-on signal and feeds back to the controller; when the rear mesh cover is removed from the air inlet, the trigger part is separated from the power-off protection component, the power-off protection component generates a first power-off signal and feeds back to the controller.

[0015] In one embodiment, the trigger part is configured as a pressure column, and the power-off protection component includes a microswitch and a movable rod. The microswitch is installed in the air flow channel and is electrically connected to the controller. The movable rod is arranged along the axial direction of the air flow channel, one end of the movable rod is transmission-connected to the microswitch, and the other end is arranged corresponding to the pressure column. When the rear mesh cover is arranged at the air inlet, the pressure column presses the movable rod, and the movable rod presses the microswitch. The microswitch is in a compressed state, and the microswitch generates a first power-on signal and feeds back to the controller; when the rear mesh cover is removed from the air inlet, the pressure column is separated from the movable rod, the microswitch rebounds and resets, and the microswitch generates a first power-off signal and feeds back to the controller.

[0016] In one of the embodiments, the heating device further includes a distance detection component, which is electrically connected to the controller and is used to detect the distance between the human body and the mounting shell.

[0017] In one embodiment, the heating component includes a bracket and a spring-type heating wire, the bracket is installed in the installation shell, and the spring-type heating wire is spirally coiled on the bracket.

[0018] In one embodiment, the bracket includes a frame body and support ribs, there is at least one support rib, all of the support ribs are arranged at intervals on the outer wall of the frame body around the axis of the frame body, and the spring heating wire is spirally coiled on each of the support ribs.

[0019] When the heating device in the above embodiment is used, the induction coil is energized and generates a magnetic field. When the human body moves toward the direction close to the mounting shell and is separated from the mounting shell by a first preset distance, the human body will correspondingly change the magnetic field distribution around the induction coil, so that the induction coil generates a power-off induction signal and feeds back to the controller, and the controller controls to disconnect the power of the heating component, and the heating component cannot be energized at this time. When the human body moves toward the direction away from the mounting shell and is separated from the mounting shell by a second preset distance, the human body will correspondingly change the magnetic field distribution around the induction coil, so that the induction coil generates a power-on induction signal and feeds back to the controller, and the controller controls to restore the power of the heating component, and the heating component can be energized for heating, and the heating body can work normally. Compared with the fans or heaters with heating functions in the prior art, the induction coil in the present application can generate a power-off sensing signal when the human body is about to approach the mounting shell, and feed it back to the controller, so that the controller can promptly control the power off of the heating component when the user is not using it normally, thereby avoiding the risk of electric shock caused by children touching the charged heating component with their fingers or sharp conductive objects, and avoiding the risk of electric shock caused by users forgetting to disconnect the power plug and touching the charged heating component when disassembling and cleaning the heating device, thereby improving the safety of the heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The figure is a schematic structural diagram of a warm air device according to an embodiment.

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the heating device after removing the rear grille.

[0024] Figure 3 for Figure 1 Schematic diagram of the structure of the rear grille.

[0025] Figure 4 for Figure 1 Schematic diagram of the structure of the heating component.

[0026] Figure 5 FIG. 1 is a schematic structural diagram of a heating device according to another embodiment.

[0027] Description of reference numerals:

[0028] 10. Warm air device;

[0029] 100, heater body; 110, mounting shell; 111, air flow channel; 112, air inlet; 113, shell body; 114, rear mesh cover; 115, air inlet; 116, pressure column; 117, air outlet; 118, front mesh cover; 120, heating component; 121, bracket; 1211, frame body; 1212, supporting rib; 122, spring-type heating wire; 130, controller; 140, motor; 150, fan blade;

[0030] 200, induction coil;

[0031] 300, power-off protection assembly; 310, micro switch; 320, movable rod;

[0032] 400, distance detection component;

[0033] 500. Main body of the machine. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] like Figure 1 and Figure 2 As shown, in one embodiment, a heating device 10 is provided, including a heating body 100 and an induction coil 200. The heating body 100 includes a mounting shell 110, a heating component 120 and a controller 130, wherein the heating component 120 is mounted in the mounting shell 110 and electrically connected to the controller 130. The induction coil 200 is mounted in the mounting shell 110 and electrically connected to the controller 130. When the human body moves toward the direction approaching the mounting shell 110 and is spaced apart from the mounting shell 110 by a first preset distance, the induction coil 200 generates a power-off induction signal and feeds back to the controller 130; when the human body moves toward the direction away from the mounting shell 110 and is spaced apart from the mounting shell 110 by a second preset distance, the induction coil 200 generates a power-on induction signal and feeds back to the controller 130.

[0036] When the heating device 10 in the above embodiment is used, the induction coil 200 is energized and generates a magnetic field. When the human body moves toward the direction close to the mounting shell 110 and is separated from the mounting shell 110 by a first preset distance, the human body will correspondingly change the magnetic field distribution around the induction coil 200, so that the induction coil 200 generates a power-off induction signal and feeds back to the controller 130, and the controller 130 controls to disconnect the power of the heating component 120, and the heating component 120 cannot be energized at this time. When the human body moves toward the direction away from the mounting shell 110 and is separated from the mounting shell 110 by a second preset distance, the human body will correspondingly change the magnetic field distribution around the induction coil 200, so that the induction coil 200 generates a power-on induction signal and feeds back to the controller 130, and the controller 130 controls to restore the power of the heating component 120, and the heating component 120 can be energized for heating, and the heating body 100 can work normally. Compared with the fans or heaters with heating functions in the prior art, the induction coil 200 in the present application can generate a power-off sensing signal when the human body is about to approach the mounting shell 110, and feed it back to the controller 130, so that the controller 130 can promptly control the power off of the heating component 120 when the user is not using it normally, thereby avoiding the risk of electric shock caused by children touching the charged heating component 120 with their fingers or sharp conductive objects, and avoiding the risk of electric shock caused by the user forgetting to disconnect the power plug and touching the charged heating component 120 when disassembling and cleaning the heating device 10, thereby improving the safety of the heating device 10.

[0037] The heater body 100 may be an electric heater, a heater, a fan with a heating function or other household appliances capable of blowing warm air in the prior art. Specifically in this embodiment, the heater body 100 is configured as a fan head assembly capable of blowing warm air. The controller 130 is configured as a control circuit board.

[0038] Among them, the number and installation position of the induction coil 200 can be flexibly adjusted according to the needs of actual use. The induction coil 200 can be set in a square, ring or other shape. The values ​​of the first preset spacing and the second preset spacing can be flexibly adjusted according to the needs of actual use. Specifically in this embodiment, the induction coil 200 can be electrically connected to the controller 130 through a signal amplification circuit. In this way, it is ensured that the controller 130 can accurately and reliably receive the power-off induction signal and the power-on induction signal generated by the induction coil 200, thereby improving the reliability of the heating device 10.

[0039] like Figure 1 and Figure 2As shown, further, the mounting shell 110 is provided with an air flow channel 111, one end of the air flow channel 111 is set as an air inlet 112, the induction coil 200 is located on the side of the heating component 120 close to the air inlet 112, and the axis of the induction coil 200 is arranged parallel to the axis of the air flow channel 111. In this way, the induction coil 200 is closer to the air inlet 112 than the heating component 120. When a child puts his finger or a sharp conductive object into the air inlet 112, the induction coil 200 can generate a power-off induction signal and feed it back to the controller 130 before the child touches the charged heating component 120, ensuring that the heating component 120 is already in a power-off state when the child touches the heating component 120, thereby improving the reliability of the warm air device 10.

[0040] Specifically in this embodiment, the axis of the heating component 120, the axis of the induction coil 200 and the axis of the airflow channel 111 are all located on the same straight line. In other embodiments, the induction coil 200 can also be spaced outside the heating component 120, or set on the side of the heating component 120 away from the air inlet 112.

[0041] like Figure 2 and Figure 3 As shown, optionally, along the axial direction of the airflow channel 111, the projection area of ​​the heating component 120 is located inside the projection area of ​​the induction coil 200. In this way, the child needs to pass through the induction coil 200 before touching the heating component 120, ensuring that the induction coil 200 can generate a power-off induction signal and feed it back to the controller 130, thereby improving the reliability and safety of the heating device 10.

[0042] like Figure 1 and Figure 3 As shown, in one embodiment, the mounting shell 110 includes a shell body 113 and a rear mesh cover 114, the shell body 113 is provided with an air flow channel 111, the rear mesh cover 114 is provided at the air inlet 112, and the rear mesh cover 114 is provided with a dot grid for connecting the external environment and the air inlet 112. In this way, when the user forgets to unplug the power plug and removes the rear mesh cover 114, the induction coil 200 can generate a power-off induction signal and feedback to the controller 130, and the controller 130 controls the heating component 120 to be powered off in time, avoiding the risk of electric shock caused by the user touching the heating component 120, thereby improving the safety of the heating device 10. In addition, the rear mesh cover 114 adopts a dense dot grid solution, so that fingers or sharp conductive objects cannot contact the internal heating component 120 through the dot grid, avoiding the risk of children's fingers accidentally touching the charged heating component 120 due to the large gap of the rear mesh cover 114, thereby improving the safety of the heating device 10.

[0043] Specifically in this embodiment, the induction coil 200 can be installed on the inner wall of the shell body 113 by snapping, plugging, screwing or other connection methods, and can also be installed on the inner wall of the rear mesh cover 114 by snapping, plugging, screwing or other connection methods.

[0044] like Figure 1 and Figure 3 As shown, optionally, the dot matrix grille has a plurality of air inlet holes 115, and along the axial direction of the air flow channel 111, the projection area of ​​each air inlet hole 115 is located inside the projection area of ​​the induction coil 200. In this way, when a child inserts a hand or a sharp conductive object into the dot matrix grille, the finger or the sharp conductive object must first pass through the induction coil 200 before touching the heating component 120, that is, before the finger or the sharp conductive object touches the heating component 120, the induction coil 200 will first generate a power-off induction signal to ensure that the heating component 120 is in a power-off state when the finger or the sharp conductive object touches the heating component 120, thereby improving the reliability of the warm air device 10.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment, the heating device 10 further includes a power-off protection component 300 electrically connected to the controller 130, the power-off protection component 300 is installed in the air flow channel 111, and the rear mesh cover 114 is provided with a trigger portion corresponding to the power-off protection component 300; when the rear mesh cover 114 is covered at the air inlet 112, the trigger portion is connected to the power-off protection component 300, and the power-off protection component 300 generates a first power-on signal and feeds back to the controller 130; when the rear mesh cover 114 is removed from the air inlet 112, the trigger portion is separated from the power-off protection component 300, and the power-off protection component 300 generates a first power-off signal and feeds back to the controller 130. In this way, after the rear mesh cover 114 is removed by the user, the power supply of the heating component 120 will be automatically disconnected, ensuring that there will be no risk of electric shock even if the user forgets to unplug the power plug and touches the heating component 120, thereby improving the safety of the heating device 10.

[0046] The power-off protection component 300 can be configured as a proximity switch, a distance sensor, or a pressure sensor. The trigger portion can be a trigger column, a trigger plate, or other trigger structures. The number of the power-off protection component 300 and the trigger portion can be flexibly adjusted according to actual use needs. The power-off protection component 300 can be installed on the inner side wall of the airflow channel 111 by snap-on, plug-in, screw-on, or other connection methods.

[0047] like Figure 1 , Figure 2 and Figure 3As shown, optionally, the trigger part is set to a pressure column 116, and the power-off protection component 300 includes a micro switch 310 and a movable rod 320. The micro switch 310 is installed in the air flow channel 111 and is electrically connected to the controller 130. The movable rod 320 is arranged along the axial direction of the air flow channel 111. One end of the movable rod 320 is transmission-connected to the micro switch 310, and the other end is arranged corresponding to the pressure column 116. When the rear mesh cover 114 is covered on the air inlet 112, the pressure column 116 presses the movable rod 320, and the movable rod 320 presses the micro switch 310. The micro switch 310 is in a compressed state, and the micro switch 310 generates a first power-on signal and feeds back to the controller 130; when the rear mesh cover 114 is removed from the air inlet 112, the pressure column 116 is separated from the movable rod 320, the micro switch 310 rebounds and resets, and the micro switch 310 generates a first power-off signal and feeds back to the controller 130. In this way, the convenience of assembling the heating device 10 is improved.

[0048] like Figure 1 and Figure 5 As shown, in one embodiment, the heater 10 further includes a distance detection component 400, which is electrically connected to the controller 130 and is used to detect the distance between the human body and the mounting shell 110. In this way, the distance detection component 400 detects the distance of the human body close to the mounting shell 110. When the user is too close to the mounting shell 110 to approach the heating component 120, the power-on heating of the heating component 120 will be automatically disconnected, and the power-on heating of the heating component 120 will be automatically restored after the user moves away. This can avoid the risk of the user forgetting to unplug the power plug and touching the charged heating component 120 when removing the rear mesh cover 114, and can also avoid the risk of naughty children touching the charged heating component 120 by inserting sharp objects into the mounting shell 110, thereby improving the safety of the heater 10.

[0049] The distance detection component 400 may be an infrared rangefinder, a radar sensor module or other device capable of detecting distance. Specifically in this embodiment, the heating device 10 further includes a body 500, the heating body 100 is mounted on the top of the body 500, and the distance detection components 400 are all mounted on the body 500.

[0050] like Figure 1As shown, optionally, one end of the airflow channel 111 away from the rear mesh cover 114 is set as an air outlet 117, and the mounting shell 110 also includes a front mesh cover 118, and the front mesh cover 118 is set to cover the air outlet 117. The heater body 100 also includes a motor 140 and a fan blade 150, which are both installed in the airflow channel 111. The motor 140 is connected to the fan blade 150 in a transmission manner so as to be able to transport the air at the air inlet 112 to the air outlet 117. The motor 140 and the fan blade 150 are located at one end of the airflow channel 111 close to the front mesh cover 118. The heating component 120 and the induction coil 200 are located at one end of the airflow channel 111 close to the rear mesh cover 114.

[0051] like Figure 1 , Figure 2 and Figure 4 As shown, in one embodiment, the heating component 120 includes a bracket 121 and a spring-type heating wire 122, the bracket 121 is installed in the mounting shell 110, and the spring-type heating wire 122 is spirally coiled on the bracket 121. In this way, compared with the traditional heating wire, the effective heating length of the spring-type heating wire 122 is longer, and the heat dissipation area on the surface of the spring-type heating wire 122 is larger, so that the heat generated by the spring-type heating wire 122 can be effectively and quickly brought out of the air outlet 117 by the fan blade 150 driven by the motor 140, and the heat is quickly spread to the room space, thereby increasing the room's heating rate, avoiding heat accumulation in the mounting shell 110 or at the air outlet 117, causing the temperature of the air outlet 117 to be too high and hot, and improving the safety of the warm air device 10.

[0052] In other embodiments, the heating component 120 can also be heated by PTC. However, the wind resistance of PTC is large, the heat generation is high, and the wind speed of the air outlet 117 is low, resulting in the temperature of the air outlet 117 generally reaching about 100°C. The spring-type heating wire 122 has a lower wind resistance, and the air outlet 117 can well bring out the heat generated by the spring-type heating wire 122. The temperature of the air outlet 117 is generally around 50°C~60°C, which can ensure that the air outlet 117 is not hot to the touch, avoid the risk of scalding, and improve the safety of the warm air device 10.

[0053] like Figure 4 As shown, optionally, the bracket 121 includes a frame body 1211 and a support rib 1212, there is at least one support rib 1212, all the support ribs 1212 are arranged at intervals on the outer wall of the frame body 1211 around the axis of the frame body 1211, and the spring-type heating wire 122 is spirally wound on each support rib 1212. In this way, the convenience of assembling the heating device 10 is improved.

[0054] The number of the support ribs 1212 can be flexibly adjusted according to actual use requirements. Specifically in this embodiment, the number of the support ribs 1212 is twelve.

[0055] The following takes a fan with hot air as an example to introduce in detail the use principle and process of the fan with hot air in the present application. The following introduction is only used as an example and does not limit the technical scope of the present application.

[0056] The fan includes a head assembly and a body assembly, and a heating assembly 120 and an induction coil 200 are installed in the head assembly. The induction coil 200 is located on the side of the heating assembly 120 close to the air inlet 112 of the head assembly. The heating assembly 120 includes a bracket 121 and a spring-type heating wire 122, the bracket 121 is installed in the mounting shell 110, and the spring-type heating wire 122 is spirally wound on the bracket 121. The rear mesh cover 114 in the head assembly is provided with a dot matrix grille for connecting the external environment and the air inlet 112. The fan further includes a power-off protection component 300 electrically connected to the controller 130, the power-off protection component 300 is installed in the air flow channel 111, and the rear mesh cover 114 is provided with a trigger portion corresponding to the power-off protection component 300; when the rear mesh cover 114 is covered at the air inlet 112, the trigger portion is connected to the power-off protection component 300, and the power-off protection component 300 generates a first power-on signal and feeds back to the controller 130; when the rear mesh cover 114 is removed from the air inlet 112, the trigger portion is separated from the power-off protection component 300, and the power-off protection component 300 generates a first power-off signal and feeds back to the controller 130. The fan further includes a distance detection component 400 electrically connected to the controller 130, the distance detection component 400 is installed on the fuselage component, and is used to detect the distance between the human body and the head component.

[0057] Compared with the fan with hot air in the prior art, the fan with hot air in the present application has at least the following advantages: 1. Compared with the traditional heating wire, the effective heating length of the spring-type heating wire 122 is longer, and the heat dissipation area on the surface of the spring-type heating wire 122 is larger, so that the heat generated by the spring-type heating wire 122 can be effectively and quickly brought out of the air outlet 117 by the fan blades 150 driven by the motor 140, and the heat is quickly spread to the room space, thereby increasing the heating rate of the room, avoiding the accumulation of heat in the head assembly or at the air outlet 117, causing the temperature of the air outlet 117 to be too high and hot to the touch, and improving the safety of the fan. 2. The induction coil 200 can generate a power-off induction signal when the human body is about to approach the head assembly, and feed it back to the controller 130, so that the controller 130 can promptly control the power off of the heating component 120 when the user is not using it normally, avoiding the risk of electric shock caused by children touching the charged heating component 120 with their fingers or sharp conductive objects, and avoiding the risk of electric shock caused by users forgetting to disconnect the power plug and touching the charged heating component 120 when disassembling and cleaning the fan, thereby improving the safety of the fan. 3. The rear mesh cover 114 adopts a dense dot matrix grid solution, so that fingers or sharp conductive objects cannot contact the internal heating component 120 through the dot matrix grid, avoiding the risk of children's fingers accidentally touching the charged heating component 120 due to the large gaps in the rear mesh cover 114. Improve the safety of the fan. 4. After the rear mesh cover 114 is disassembled by the user, the power-off protection component 300 is triggered, and the trigger signal is fed back to the controller, automatically disconnecting the power supply to the heating component 120, ensuring that there is no risk of electric shock even if the user forgets to unplug the power plug and touches the heating component 120, thereby improving the safety of the fan. 5. The distance detection component 400 detects the distance of the human body from the head component. When the user is too close to the head component to approach the heating component 120, the power supply and heating of the heating component 120 will be automatically disconnected, and the power supply and heating of the heating component 120 will be automatically restored after the user moves away. This can avoid the risk of the user forgetting to unplug the power plug and touching the charged heating component 120 when disassembling the rear mesh cover 114, and can also avoid the risk of naughty children touching the charged heating component 120 by inserting sharp objects into the head component, thereby improving the safety of the fan.

[0058] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0059] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0061] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0063] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0064] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A heating device, characterized in that: include: A heater body (100), the heater body (100) comprising a mounting shell (110), a heating component (120) and a controller (130), the heating component (120) being mounted in the mounting shell (110) and electrically connected to the controller (130); an induction coil (200), the induction coil (200) being installed in the installation shell (110) and electrically connected to the controller (130); When the human body moves in a direction approaching the mounting shell (110) and is spaced apart from the mounting shell (110) by a first preset distance, the induction coil (200) generates a power-off induction signal and feeds back to the controller (130); when the human body moves in a direction away from the mounting shell (110) and is spaced apart from the mounting shell (110) by a second preset distance, the induction coil (200) generates a power-on induction signal and feeds back to the controller (130).

2. The heating device according to claim 1, characterized in that: The mounting shell (110) is provided with an air flow channel (111), one end of the air flow channel (111) is arranged as an air inlet (112), the induction coil (200) is located on a side of the heating component (120) close to the air inlet (112), and the axis of the induction coil (200) is arranged parallel to the axis of the air flow channel (111).

3. The heating device according to claim 2, characterized in that: Along the axial direction of the airflow channel (111), the projection area of ​​the heating component (120) is located inside the projection area of ​​the induction coil (200).

4. The heating device according to claim 2, characterized in that: The mounting shell (110) comprises a shell body (113) and a rear mesh cover (114); the shell body (113) is provided with the air flow channel (111); the rear mesh cover (114) is provided on the air inlet (112); and the rear mesh cover (114) is provided with a dot matrix grille for connecting the external environment and the air inlet (112).

5. The heating device according to claim 4, characterized in that: The dot matrix grille has a plurality of air inlet holes (115), and along the axial direction of the air flow channel (111), the projection area of ​​each of the air inlet holes (115) is located inside the projection area of ​​the induction coil (200).

6. The heating device according to claim 4, characterized in that: The heating device (10) further comprises a power-off protection component (300) electrically connected to the controller (130), wherein the power-off protection component (300) is installed in the air flow channel (111), and the rear mesh cover (114) is provided with a trigger portion corresponding to the power-off protection component (300); when the rear mesh cover (114) is covered at the air inlet (112), the trigger portion is connected to the power-off protection component (300), and the power-off protection component (300) generates a first power-on signal and feeds back to the controller (130); when the rear mesh cover (114) is removed from the air inlet (112), the trigger portion is separated from the power-off protection component (300), and the power-off protection component (300) generates a first power-off signal and feeds back to the controller (130).

7. The heating device according to claim 6, characterized in that: The trigger portion is configured as a pressure column (116); the power-off protection assembly (300) comprises a micro switch (310) and a movable rod (320); the micro switch (310) is installed in the air flow channel (111) and is electrically connected to the controller (130); the movable rod (320) is arranged along the axial direction of the air flow channel (111); one end of the movable rod (320) is transmission-connected to the micro switch (310), and the other end is correspondingly arranged to the pressure column (116); when the rear mesh cover (114) is disposed on the air inlet (112), The pressure column (116) presses the movable rod (320), and the movable rod (320) presses the micro switch (310). The micro switch (310) is in a compressed state, and the micro switch (310) generates a first power-on signal and feeds back to the controller (130); when the rear mesh cover (114) is removed from the air inlet (112), the pressure column (116) is separated from the movable rod (320), and the micro switch (310) rebounds to reset, and the micro switch (310) generates a first power-off signal and feeds back to the controller (130).

8. The heating device according to any one of claims 1 to 7, characterized in that: The heating device (10) further comprises a distance detection component (400), wherein the distance detection component (400) is electrically connected to the controller (130) and is used to detect the distance between the human body and the mounting shell (110).

9. The heating device according to any one of claims 1 to 7, characterized in that: The heating component (120) comprises a bracket (121) and a spring-type heating wire (122); the bracket (121) is installed in the installation shell (110); and the spring-type heating wire (122) is spirally coiled on the bracket (121).

10. The heating device according to claim 9, characterized in that: The bracket (121) comprises a frame body (1211) and support ribs (1212), there is at least one support rib (1212), all of the support ribs (1212) are arranged at intervals on the outer side wall of the frame body (1211) around the axis of the frame body (1211), and the spring-type heating wire (122) is spirally coiled on each of the support ribs (1212).

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