Ring-shaped heating body and hair dryer

Abstract

The application relates to a ring-shaped heating body and an air heater. The ring-shaped heating body comprises a support, a heating element and a heat insulation element. The support has a mounting channel, the shape of the mounting channel is configured as a ring shape, along the axial direction of the ring shape, the mounting channel has an air outlet arranged along the circumferential direction of the ring shape, and the opening direction of the air outlet is consistent with the axial direction of the ring shape; the heating element is located in the mounting channel and is arranged along the extension direction of the mounting channel; the heat insulation element is arranged in the mounting channel, part of the heat insulation element is arranged along the extension direction of the mounting channel, and the heat insulation element can position and insulate different parts of the heating element. The heat insulation element of the ring-shaped heating body blocks the heat released by the heating element, so that a large amount of heat can flow out from the air outlet, and the heating effect of the ring-shaped heating body is improved. In addition, the shape of the heating element and the shape of the air outlet are both ring shapes, the heat released by the ring-shaped heating body can be uniformly diffused to the surrounding, and uniform heating can be realized.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a ring-shaped heating element and a heater. Background Technology

[0002] Heaters use an electrically heated element to generate heat, and then a fan circulates air to blow out the heat generated by the heating element, thus heating the indoor environment. However, the air outlets of current fan heaters are mainly concentrated in a certain area, causing the heat to concentrate in that area, resulting in localized overheating and uneven heat distribution. Utility Model Content

[0003] This application addresses the problem of localized overheating and uneven heat distribution in existing heaters by proposing a ring-shaped heating element and heater that achieve uniform airflow.

[0004] In a first aspect, this application provides an annular heating element for a space heater, comprising:

[0005] The bracket has an installation channel that is constructed in an annular shape. Along the axial direction of the annulus, the installation channel has an air outlet arranged circumferentially along the annulus, and the opening direction of the air outlet is consistent with the axial direction of the annulus.

[0006] A heating element is located within the mounting channel and is arranged along the extending direction of the mounting channel;

[0007] A heat insulation component is disposed within the installation channel, with a portion of the heat insulation component arranged along the extension direction of the installation channel. The heat insulation component is capable of limiting and insulating different parts of the heating element.

[0008] In summary, by designing the installation channel into a ring shape and placing a heating element of the same shape within the channel, and then using heat insulation to block the heat released by the heating element, a large amount of heat can be concentrated and flow out from the air outlet, thereby improving the heating effect of the ring-shaped heating element. Furthermore, since both the heating element and the air outlet are ring-shaped, the heat released by the ring-shaped heating element can be evenly diffused in all directions, achieving uniform heating.

[0009] In one embodiment, the heat insulation component includes a first sub-heat insulation component, a second sub-heat insulation component, and a third sub-heat insulation component. Along the radial direction of the annulus, the first sub-heat insulation component and the second sub-heat insulation component are distributed on both sides of the heating component, and the third sub-heat insulation component is spaced along the mounting channel and positions different parts of the heating component.

[0010] In this way, the heat insulation component is divided into multiple sub-heat insulation components, and the heating component is insulated and fixed by the combination of multiple sub-heat insulation components. This simplifies the structure of the various sub-heat insulation components, reduces the manufacturing difficulty of the various sub-heat insulation components, and makes it easier to obtain the various sub-heat insulation components.

[0011] In one embodiment, the bracket is provided with a mounting groove located on the inner ring wall of the mounting channel, and the first sub-insulation element is mounted thereon.

[0012] The number of first sub-insulators can be one or more. When there is only one first sub-insulator, it is a single piece. When there are multiple first sub-insulators, it can be understood as breaking down a larger component into multiple smaller components. Accordingly, the shape and number of mounting slots change depending on the number of first sub-insulators; that is, one first sub-insulator is installed in one mounting slot.

[0013] By integrating the mounting slot onto the bracket, there is no need to set up additional components to install the first sub-insulation element, which simplifies the installation structure and method of the first sub-insulation element.

[0014] In one embodiment, the second sub-insulation member is arranged radially spaced from the first sub-insulation member along the annulus and together with the bracket to form the mounting channel.

[0015] Thus, using the second sub-insulation component as the outer ring wall of the installation channel further simplifies the structure of the entire annular heating element and reduces the difficulty of its fabrication. Furthermore, it reduces the weight of the annular heating element, making it easier to handle.

[0016] In one embodiment, a mounting portion is provided on the inner ring wall along the circumference of the ring, and the mounting portion and the mounting groove are alternately arranged along the circumference of the ring, and the third sub-insulation member is mounted on the mounting portion.

[0017] Multiple mounting sections can be provided, spaced circumferentially along the ring. Each section houses a third sub-insulator, improving insulation performance. Furthermore, reserving space on the inner ring wall for the mounting sections and using them to install the third sub-insulator eliminates the need for additional support sections, reducing the space occupied by the mounting sections. Moreover, the structure of the annular heating element is simplified without compromising the insulation effect of the first sub-insulator.

[0018] In one embodiment, the mounting part is configured with a first slot, the second sub-insulator is provided with a second slot, one end of the third sub-insulator is engaged with the first slot, and the other end is engaged with the second slot.

[0019] This design simplifies the installation of the third insulation component and makes it easier to assemble.

[0020] In one embodiment, the third sub-insulation member is provided with through holes, which are radially distributed along the annulus. The number of through holes is equal to the number of heating elements, and one heating element is inserted through one through hole.

[0021] This arrangement, with the heating elements held in different through holes in a staggered distribution, increases the contact area between the air and the heating elements, allowing the air to be heated evenly and accelerating the heating rate of the mounting channel containing the heating elements. Compared to using a single heating element, this improves the heating uniformity and heating speed of the annular heating element.

[0022] In one embodiment, the annular heating element further includes an annular connector, which is sleeved on the outside of the second sub-insulation and the bracket, and connected to the second sub-insulation and the bracket.

[0023] In this way, by using a ring connector to connect the second sub-insulation component and the bracket together, the connection stability between the second sub-insulation component and the bracket can be improved, thereby improving the overall stability of the ring-shaped heating element.

[0024] In one embodiment, the annular connector, the second sub-insulation member, and the annular bracket are welded together.

[0025] This configuration improves the stability of the connection between the three elements, thereby enhancing the stability of the annular heating element.

[0026] In one embodiment, the mounting channel is configured as an annular ring with a notch, the notch being provided with a main board, the main board being electrically connected to the heating element.

[0027] The wires at the heating element's output end enter the opening and connect to the terminals on the main board to achieve electrical connection between the heating element and the main board. The heating element's output end is soldered, which, compared to terminal-outlet wiring, not only reduces the space occupied but also improves installation stability.

[0028] Secondly, this application also provides a space heater that includes the annular heating element described in the above embodiments. Based on the same inventive concept, the space heater has all the beneficial effects of the annular heating element.

[0029] In one embodiment, the heater further includes a base and a display screen. The annular heating element is mounted on the base, and the display screen is also mounted on the base and is positioned directly opposite the center area of ​​the annular heating element.

[0030] When the heater is not turned on, the display screen will not show a flame pattern. When the heater is running, the ring-shaped heating element emits warm air, and the display screen will then show the flame pattern. This setting increases the fun of using the heater. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the annular heating element provided in some embodiments of this application.

[0032] Figure 2 This is a partial structural schematic diagram of the annular heating element provided in some embodiments of this application.

[0033] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0034] Figure 4 for Figure 2 A magnified view of a section at point B.

[0035] Figure 5 for Figure 2 A magnified view of a section at point C.

[0036] Figure 6 This is a partial structural schematic diagram of the annular heating element provided in some embodiments of this application.

[0037] Figure 7 This is a schematic diagram of the structure of a heater provided in some embodiments of this application when the display screen is not displayed.

[0038] Figure 8 This is a schematic diagram of the display screen of a heater provided in some embodiments of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Bracket; 11. Installation channel; 20. Heating element; 30. Insulation element; 31. First sub-insulation element; 32. Second sub-insulation element; 33. Third sub-insulation element; 40. Mounting part; 50. Annular connector; 60. Main board; X, radial; Y, circumferential; 100. Annular heating element; 200. Base; 300. Display screen; 1000. Warm air blower. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] When using a space heater, because it can only direct airflow to either the upper or lower body at a time, users need to adjust the airflow angle to warm their lower body after warming their upper body. Furthermore, due to safety regulations, space heaters are equipped with a tilt switch, which can easily cause the power to cut off if the heater is tilted. This results in a poor user experience.

[0048] To achieve uniform airflow over a wide area to blow air over most of the user's body, one embodiment of this application provides an annular heating element, the mounting channel of which is constructed in an annular shape, and the heating element is also arranged along the extension direction of the mounting channel. Because the mounting channel has an air outlet along the axial direction of the annulus, and the projection of the air outlet along the axial direction coincides with the annulus, uniform annular airflow can be achieved, expanding the airflow range of the heater.

[0049] Please see Figure 1 and Figure 2 One embodiment of this application provides an annular heating element 100 for use in a fan heater 1000, which includes a bracket 10, a heating element 20, and multiple heat insulation elements 30. The bracket 10 has an installation channel 11, which is constructed in annular shape. Along the axial direction of the annulus, the installation channel 11 has an air outlet arranged circumferentially along the annulus, and the opening of the air outlet is consistent with the axial direction of the annulus. The heating element 20 is located inside the installation channel 11 and is arranged along the extension direction of the installation channel 11. The heat insulation elements 30 are disposed inside the installation channel 11, and some of the heat insulation elements 30 are arranged along the extension direction of the installation channel 11. The heat insulation elements 30 can limit and insulate different parts of the heating element 20.

[0050] The bracket 10 is used to support components such as the heating element 20 and the heat insulation element 30. The heating element 20 may be made of metal resistance wire, and the heat insulation element 30 is used to block and concentrate the heat released by the heating element 20 so that it can flow out from the air outlet.

[0051] The working principle of the annular heating element 100 is explained below.

[0052] The bracket 10 is provided with an installation channel 11, and the heating element 20 is disposed in the installation channel 11. Because the shape of the air outlet of the installation channel 11 is the same as its own shape, and the air outlets located at different positions are all on the same plane, the heat generated by the heating element 20 can flow out from the part corresponding to the opening to achieve ring heating.

[0053] In addition, the heat insulation component 30 can be divided into two types: one can only insulate the heating component 20, and the other can both insulate the heating component 20 and fix the heating component 20, so as to reduce the probability of the heating component 20 shaking in the installation channel 11 and improve the installation stability of the heating component 20.

[0054] In summary, by designing the installation channel 11 as an annular shape and placing a heating element 20 of the same shape within it, and then using a heat insulation element 30 to block the heat released by the heating element 20, a large amount of heat can be concentrated and discharged from the air outlet, thereby improving the heating effect of the annular heating element 100. Furthermore, since both the heating element 20 and the air outlet are annular, the heat released by the annular heating element 100 can be evenly diffused in all directions, achieving uniform heating.

[0055] Please continue reading. Figure 2 In some embodiments, the heat insulation element 30 includes a first sub-heat insulation element 31, a second sub-heat insulation element 32 and a third sub-heat insulation element 33. Along the annular radial direction X, the first sub-heat insulation element 31 and the second sub-heat insulation element 32 are distributed on both sides of the heating element 20, and the third sub-heat insulation element 33 is spaced along the mounting channel 11 and positions different parts of the heating element 20.

[0056] This can be understood as follows: the first sub-insulation element 31 and the second sub-insulation element 32 are located on the inner and outer annular walls of the mounting channel 11, respectively, to block the heat released by the heating element 20 in the radial direction X and protect the bracket 10, so that the heat can flow out from the air outlet as much as possible. The first sub-insulation element 31 and the second sub-insulation element 32 can be installed on the bracket 10 by welding or snap-fitting.

[0057] There are multiple third sub-insulation members 33, which are spaced apart along the extension direction of the mounting channel 11. The third sub-insulation members 33 can be installed on the outside of the heating element 20 to fix different components of the heating element 20, thereby improving the installation stability of the heating element 20. The use of insulating and heat-insulating materials to prepare the third sub-insulation members 33 is to reduce the probability that the third sub-insulation members 33 will lose their fixing function to the heating element 20 due to high-temperature deformation.

[0058] In this way, the heat insulation component 30 is divided into multiple sub-heat insulation components 30, and the heating component 20 is insulated and fixed by the multiple sub-heat insulation components 30 that cooperate with each other. This simplifies the structure of the various sub-heat insulation components 30, reduces the difficulty of manufacturing the various sub-heat insulation components 30, and makes it easy to obtain the various sub-heat insulation components 30.

[0059] Furthermore, such as Figure 3 and Figure 4 As shown, in some embodiments, the bracket 10 is provided with a mounting groove (not shown in the figure), the mounting groove is located on the inner ring wall of the mounting channel 11, and a first sub-insulation member 31 is installed thereon.

[0060] The number of first sub-insulators 31 can be one or more. When there is only one first sub-insulator 31, its shape is a single piece. When there are multiple first sub-insulators 31, it can be understood as breaking down a larger component into multiple smaller components. Accordingly, the shape and number of mounting slots change according to the change of the first sub-insulators 31, that is, one first sub-insulator 31 is installed in one mounting slot.

[0061] In this way, by integrating the mounting slot onto the bracket 10, there is no need to set up additional components to install the first sub-insulation 31, which simplifies the installation structure and method of the first sub-insulation 31.

[0062] Furthermore, such as Figure 3 As shown, in some embodiments, the second sub-insulation member 32 and the first sub-insulation member 31 are arranged at a radial distance X along the circumference, and together with the bracket 10, they enclose and form an installation channel 11.

[0063] Because the first sub-insulation element 31 is disposed on the inner annular wall of the mounting channel 11, and the first sub-insulation element 31 and the second sub-insulation element 32 are disposed on both sides of the heating element 20 along the radial direction X of the annulus, and the second sub-insulation element 32 and the bracket 10 together enclose the mounting channel 11, the second sub-insulation element 32 is constructed as the outer annular wall of the mounting channel 11. The second sub-insulation element 32 can be directly connected to the bracket 10, or the second sub-insulation element 32 can be connected to the bracket 10 through a connector.

[0064] Using the second sub-insulation element 32 as the outer ring wall of the mounting channel 11 further simplifies the structure of the entire annular heating element 100 and reduces the manufacturing difficulty of the annular heating element 100. In addition, it reduces the weight of the annular heating element 100, making it easier to transport.

[0065] like Figure 2 and Figure 5 As shown, in some embodiments, a mounting portion 40 is provided on the inner ring wall along the circumferential direction Y of the ring. The mounting portion 40 and the mounting groove are alternately arranged along the circumferential direction of the ring. A third sub-insulation member 33 is mounted on the mounting portion 40.

[0066] The number of mounting portions 40 can be multiple, and these mounting portions 40 are distributed circumferentially along the ring. Each mounting portion 40 is equipped with a third sub-insulator 33, thereby improving the heat insulation performance. Furthermore, by reserving a certain space on the inner ring wall to accommodate the mounting portions 40 and installing the third sub-insulator 33 through them, not only is it unnecessary to provide an additional support portion for the mounting portions 40, but the space occupied by the mounting portions 40 is also reduced. Moreover, the structure of the annular heating element 100 is simplified without affecting the heat insulation effect of the first sub-insulator 31.

[0067] Please continue reading. Figure 2 , Figure 5 and Figure 6 In some embodiments, the mounting part 40 is configured with a first slot, the second sub-insulator 32 is provided with a second slot, and one end of the third sub-insulator 33 is engaged with the first slot and the other end is engaged with the second slot.

[0068] For example, the inner ring wall is provided with a plurality of protrusions, which divide two adjacent protrusions into a group and form a first slot between two protrusions in the same group. The third sub-insulation member 33 is provided with a plurality of second slots, the number of which is equal to the number of first slots, and the first slots and second slots are in a one-to-one correspondence to hold the same third insulation member 30 together.

[0069] This design simplifies the installation of the third heat insulation component 30 and facilitates its assembly.

[0070] Furthermore, in some embodiments, the third sub-insulation member 33 is provided with through holes, all of which are distributed along the radial direction X of the ring, and the number of through holes is equal to the number of heating elements 20, with one heating element 20 passing through one through hole.

[0071] For example, in Figure 3 In the example shown, the third sub-insulation member 33 has two through holes, each for a different heating element 20 to pass through and hold. Because the two through holes are distributed along the radial direction X of the ring, the heating elements 20 held by the two through holes are staggered. In this way, each heating element 20 can have sufficient contact with the air, thereby increasing the contact area between the air and the heating element 20, allowing the air to be heated uniformly, and accelerating the heating rate of the mounting channel 11 where the heating element 20 is located.

[0072] Furthermore, compared to setting a single heating element 20, since the number of heating elements 20 has increased while the size of the installation channel 11 has not changed, the heating power of the two heating elements has increased, the time required to lift the installation channel 11 has decreased, thereby increasing the time required to deliver warm air from the air outlet. As a result, the heating speed and overall heat of the annular heating element 100 have been increased.

[0073] In another example, the third sub-insulation 33 is provided with three through holes, and different through holes hold different heating elements 20 so that the three heating elements 20 are staggered to improve the heating rate of the annular heating element 100 and make the heat distribution more uniform.

[0074] It should be noted that the number of through holes on the third sub-insulation component 33 can be adjusted according to the size of the installation space and heating requirements, thereby increasing or decreasing the number of corresponding heating components 20.

[0075] like Figure 2 As shown, in some embodiments, the annular heating element 100 further includes an annular connector 50, which is sleeved on the outside of the second sub-heat insulation element 32 and the bracket 10, and connected to the second sub-heat insulation element 32 and the bracket 10. The number of annular connectors 50 can be set to multiple, and the multiple annular connectors 50 are distributed at intervals along the circumferential Y-axis of the annulus.

[0076] By using the annular connector 50 to connect the second sub-insulation 32 and the bracket 10 together, the connection stability between the second sub-insulation 32 and the bracket 10 can be improved, thereby improving the overall stability of the annular heating element 20.

[0077] In some embodiments, the annular connector 50, the second sub-insulation member 32, and the annular bracket 10 are welded together.

[0078] This configuration improves the connection stability between the three elements, thereby enhancing the stability of the annular heating element 20.

[0079] like Figure 1 As shown, in some embodiments, the mounting channel 11 is configured as an annular shape with a notch, the notch being provided with a main board 60, which is electrically connected to the heating element 20.

[0080] The wires at the outlet of the heating element 20 enter the opening and connect to the terminals on the main board 60 to achieve electrical connection between the heating element 20 and the main board 60. The outlet of the heating element 20 is soldered, which, compared to terminal outlets, not only reduces the space occupied but also improves installation stability.

[0081] In addition, such as Figure 7 and Figure 8As shown, this application also provides a space heater 1000, which includes the annular heating element 100 in the above embodiments. Based on the same inventive concept, the space heater 1000 has all the beneficial effects of the annular heating element 100, which will not be described in detail here.

[0082] The heater 1000 also includes a base 200 and a display screen 300. The annular heating element is mounted on the base 200, and the display screen 300 is also mounted on the base 200 and is positioned directly opposite the center area of ​​the annular heating element.

[0083] The shape of the base 200 can be, but is not limited to, a tripod, a rectangular base, or other components. The display screen 300 can be installed in the central area of ​​the annular heating element to form an integral whole with the annular heating element. This whole is configured to emit warm air from the outer ring and display a flame pattern in the central area.

[0084] For example, such as Figure 7 As shown, when the heater 1000 is not running, the display screen 300 will not show a flame pattern. Figure 8 As shown, when the heater 1000 is running, the ring-shaped heating element emits warm air, and the display screen 300 shows a flame pattern. This setting enhances the fun of the heater 1000.

[0085] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0086] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A ring-shaped heating element, characterized in that, include: The bracket has an installation channel, the installation channel being constructed in annular shape, and along the axial direction of the annulus, the installation channel has an air outlet arranged circumferentially along the annulus, the opening direction of the air outlet being consistent with the axial direction of the annulus. A heating element is located within the mounting channel and is arranged along the extending direction of the mounting channel; A heat insulation component is disposed within the installation channel, with a portion of the heat insulation component arranged along the extension direction of the installation channel. The heat insulation component is capable of limiting and insulating different parts of the heating element.

2. The annular heating element according to claim 1, characterized in that, The heat insulation component includes a first sub-heat insulation component, a second sub-heat insulation component, and a third sub-heat insulation component. Along the radial direction of the annulus, the first sub-heat insulation component and the second sub-heat insulation component are distributed on both sides of the heating component, and the third sub-heat insulation component is spaced along the installation channel and positions different parts of the heating component.

3. The annular heating element according to claim 2, characterized in that, The bracket is provided with a mounting groove, which is located on the inner ring wall of the mounting channel and is on which the first sub-insulation component is installed.

4. The annular heating element according to claim 3, characterized in that, The second sub-insulation member and the first sub-insulation member are arranged radially apart along the annulus, and together with the bracket, they enclose the mounting channel.

5. The annular heating element according to claim 3, characterized in that, Along the circumference of the ring, an installation part is provided on the inner ring wall, and the installation part and the installation groove are alternately arranged along the circumference of the ring, and the third sub-insulation component is installed on the installation part.

6. The annular heating element according to claim 5, characterized in that, The mounting part is configured with a first slot, the second sub-insulation member is provided with a second slot, one end of the third sub-insulation member is engaged with the first slot, and the other end is engaged with the second slot.

7. The annular heating element according to claim 5, characterized in that, The third heat insulation component is provided with through holes, which are distributed radially along the annulus. The number of through holes is equal to the number of heating components, and one heating component is inserted through one through hole.

8. The annular heating element according to claim 2, characterized in that, The annular heating element further includes an annular connector, which is sleeved on the outside of the second sub-insulation element and the bracket, and connected to the second sub-insulation element and the bracket.

9. The annular heating element according to claim 8, characterized in that, The annular connector, the second sub-insulation component, and the annular bracket are connected by welding.

10. The annular heating element according to any one of claims 1 to 9, characterized in that, The mounting channel is constructed as a ring with a notch, the notch being equipped with a main board, which is electrically connected to the heating element.

11. A space heater, characterized in that, Includes the annular heating element as described in any one of claims 1 to 9.

12. The heater according to claim 11, characterized in that, The heater also includes a base and a display screen. The annular heating element is mounted on the base, and the display screen is also mounted on the base, and is positioned directly opposite the center area of ​​the annular heating element.

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