A ring type heater made of a heat generating tube

Abstract

The utility model provides a kind of ring type warmer made of heating tube, including heating assembly, line box and support pipe, and heating assembly includes first casing and heating tube;The shape of first casing is circular annular column, and the shape of heating tube is circular arc, and at least one heating tube is arranged in first casing with head-to-tail close, and there is spacing between the head and tail of heating tube, and heating area of circular ring shape is formed;Line box is arranged above first casing, and is located in the circular hollow area of first casing in vertical direction;Two ends of support pipe are fixedly connected with line box and first casing respectively.By setting heating tube in circular annular column first casing with head-to-tail close, heat can be symmetrically and evenly spread to entire heating panel from heating tube, forming heating area of circular ring shape.Moreover, line box is located in the circular hollow area of first casing, and power cord can be arranged in line box after wiring, facilitating the installation of warmer, wiring connection and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of heating equipment technology, and in particular to a ring heater made of a heating tube. Background Technology

[0002] As people's demands for comfortable living environments increase, heaters have gradually become one of the mainstream products in the market due to their high efficiency, energy saving, and aesthetic appeal. Currently, most heaters on the market are panel heaters, which have the following technical limitations: Panel heaters typically have straight heating elements and rectangular heating panels. This results in significant differences in heat transfer efficiency along the long and short axes, leading to uneven heat distribution. During prolonged high-temperature operation, this uneven heating can generate thermal stress, potentially causing the heating panel to warp and deform, thus affecting the heater's aesthetics.

[0003] Due to the weight limitations of heaters, they are often first installed on the ceiling using a hanging assembly before wiring and cable management. However, some power cords are exposed, affecting the appearance. If the wiring and cable management are done first, and then the heater is installed to cover the power cords, the installation and maintenance become more complicated and cannot be completed by one person alone.

[0004] Therefore, there is an urgent need for a heater that can overcome the problems of uneven heating range, poor aesthetics, and inconvenient wiring, maintenance, and installation of traditional panel heaters. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a ring-shaped heater made of heating tubes. By arranging at least one heating tube end-to-end within a cylindrical annular first housing, heat can be symmetrically and evenly diffused from the heating tubes to the entire heating panel, forming a ring-shaped heating area. Furthermore, the junction box is located within the circular hollow area of ​​the first housing, allowing the power cord to be neatly organized within the box after wiring, facilitating heater installation, wiring connections, and maintenance. The ring-shaped appearance not only provides good heat dissipation and uniform heating area but also meets users' aesthetic requirements.

[0006] This utility model provides a ring-shaped heater made of a heating tube, including a heating component, a junction box and a support tube. The heating component includes a first housing and a heating tube. The first housing is in the shape of a cylindrical ring, and the heating tube is in the shape of an arc. At least one heating tube is arranged in the first housing with its ends close together, and there is a gap between the ends of the heating tube to form a ring-shaped heating area. The junction box is positioned above the first housing and is located vertically within the circular hollow area of ​​the first housing; The two ends of the support tube are fixedly connected to the junction box and the first housing, respectively.

[0007] Furthermore, the first housing includes an inner ring wall, an outer ring wall, a top plate, and a heating panel. The top plate is fixedly connected to the protrusions extending from the sides of the inner ring wall and the outer ring wall. The heating panel is fixedly connected to the bottom of the inner ring wall and the outer ring wall, forming the internal space of the first housing.

[0008] Furthermore, the heating element is fixedly connected to the heating panel, the center of the heating element coincides with the center of the first housing, and the distances between the left and right sides of the heating element and the inner and outer ring walls are equal.

[0009] Furthermore, the outer edge of the heating panel extends outward beyond the boundary of the outer ring wall, and the projected boundary of the heating panel covers and is larger than the projected boundary of the outer ring wall. The heating panel is used to dissipate the heat of the heating tube.

[0010] Furthermore, the ring-shaped heater also includes a light assembly and a connecting pipe. The light assembly includes a second housing and a light strip disposed within the second housing. The second housing is configured to surround the side of the first housing. The connecting pipe is a hollow tube, and its two ends are fixedly connected to the side of the first housing and the side of the second housing, respectively.

[0011] Furthermore, the second housing includes an upper frame and a lampshade. The bottom of the upper frame has a groove surrounding the first housing. The lamp strip is fixedly disposed in the groove. The top of the lampshade protrudes and is inserted into the groove for fixed connection.

[0012] Furthermore, there is a gap between the second housing and the first housing.

[0013] Furthermore, the support tube is a hollow tube body. One end of the support tube passes through the wire box and extends into the interior, while the other end is installed on the top of the first housing. A wiring hole is provided on the top of the first housing. The wiring of the heating tube passes through the wiring hole and the support tube in sequence and then extends into the interior of the wire box.

[0014] Furthermore, the ring-shaped heater also includes a mounting bracket, the side of which has a mounting groove in the vertical direction, and a notch in the middle of the mounting groove; the side of the junction box has a protrusion, which slides into the mounting groove along the notch.

[0015] Furthermore, the mounting bracket has a positioning hole, and the side of the junction box has a fixing hole; when the protrusion slides to the top position of the mounting groove, the positioning hole aligns with the fixing hole; the ring heater also includes a fastener, which is used to pass through the positioning hole and the fixing hole to fix the junction box to the mounting bracket.

[0016] In summary, this invention forms a circular heating area by arranging at least one heating element end-to-end within the first housing. Furthermore, the junction box is located within the circular hollow area of ​​the first housing, facilitating its inspection and installation. The circular shape not only provides excellent heat dissipation and uniform heating area but also meets users' aesthetic requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the ring-shaped heater in an embodiment of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the ring-shaped heater in an embodiment of the present invention. Figure 2 .

[0020] Figure 3 This is an exploded view of the ring-shaped heater in an embodiment of this utility model.

[0021] Figure 4 This is a bottom view of the ring-shaped heater in an embodiment of this utility model.

[0022] Figure 5 This is a top view of the ring-shaped heater in an embodiment of this utility model.

[0023] Figure 6 This is a side view of the ring-shaped heater in an embodiment of this utility model.

[0024] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure along the AA direction.

[0025] Figure 8 for Figure 7 A cross-sectional view of the central protrusion when it slides into the bottom of the mounting groove.

[0026] Figure 9 This is a schematic diagram of the structure of a ring heater in another embodiment of the present invention.

[0027] Figure 10 for Figure 9 A cross-sectional view of the center box.

[0028] In the above-mentioned figures, the reference numerals for the embodiments of this utility model are as follows: 100. Heating components; 110. First housing; 111. Inner ring wall; 112. Outer ring wall; 113. Top plate; 114. Heating panel; 115. Wiring hole; 120. Heating element; 200. Junction box; 210. Protrusion; 220. Fixing hole; 300. Support tube; 400. Lighting components; 410. Second housing; 411. Upper frame; 412. Groove; 413. Lampshade; 420. Connecting pipe; 500. Mounting bracket; 510. Mounting slot; 520. Notch; 530. Positioning hole; 600. Fasteners; 700, Insulation layer; 800. Cover plate; 810. Wiring via; 900, Limiting components. Detailed Implementation

[0029] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0033] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0034] The following detailed explanation uses specific examples: like Figures 1 to 8 As shown, this utility model embodiment provides a ring-shaped heater made of a heating tube 120, including a heating component 100, a junction box 200, and a support tube 300. The heating component 100 includes a first housing 110 and a heating tube 120. The first housing 110 is in the shape of a cylindrical ring, and the heating tube 120 is in the shape of an arc. At least one heating tube 120 is arranged with its ends close together in the first housing 110, and there is a gap between the ends of the heating tubes 120 to form a ring-shaped heating area. The junction box 200 is positioned above the first housing 110 and is located vertically within the circular hollow area of ​​the first housing 110; The two ends of the support tube 300 are fixedly connected to the junction box 200 and the first housing 110, respectively.

[0035] Specifically, since the beginning and end of the heating tube 120 need to be connected to the positive and negative poles respectively, there is a gap between the beginning and end of the heating tube 120.

[0036] In this embodiment, the first housing 110 includes an inner ring wall 111, an outer ring wall 112, a top plate 113, and a heating panel 114. The top plate 113 is fixedly connected to the protrusions (extended edges) extending from the sides of the inner ring wall 111 and the outer ring wall 112. The heating panel 114 is fixedly connected to the bottom of the inner ring wall 111 and the outer ring wall 112, and together they form the internal space of the first housing 110.

[0037] Specifically, both the inner ring wall 111 and the outer ring wall 112 are circular sleeves formed by bending profiles, with the diameter of the outer ring wall 112 being larger than that of the inner ring wall 111. The top plate 113 and the heating panel 114 are both annular flat plates, and the first housing 110 is shaped like a hollow annular cylinder. The heating tube 120 is disposed in the internal space of the first housing 110 and is in the shape of an arc.

[0038] In this embodiment, the heating element 100 further includes a heat insulation layer 700, which is disposed in the internal space of the first housing 110. The heat insulation layer 700 is located above the heating element 120 near the top plate 113, and is made of heat insulation cotton. The heat insulation layer 700 is used to block the upward transfer of heat from the heating element 120, preventing the structure above from being heated, and also promotes the downward transfer of heat from the heating element 120 through the heating panel 114, thereby improving heat dissipation efficiency.

[0039] In this embodiment, the heating tube 120 is fixedly connected to the heating panel 114, the center of the heating tube 120 coincides with the center of the first housing 110, and the distances between the left and right sides of the heating tube 120 and the inner ring wall 111 and the outer ring wall 112 are equal.

[0040] Specifically, the heating panel 114 is an annular flat plate, and the heating tube 120 is directly fixed to the heating panel 114. Therefore, the heating panel 114 can be set as a flat panel. The flat plate structure is simple and does not require the use of extrusion molds; it can be directly cut out, eliminating the risk of deformation during the manufacturing process. In the prior art, when the heating panel 114 is made by extrusion molds, it is prone to deformation during the pressure forming process, so multiple reinforcing ribs need to be designed. However, in this embodiment, the heating panel 114 is a flat plate, so there is no need to set reinforcing ribs during the manufacturing process of the heating panel 114; it can be directly cut and formed. The heating tube 120, after being fixed to the heating panel 114, also acts as a reinforcing rib, increasing the structural strength of the heating panel 114.

[0041] In this embodiment, the outer edge of the heating panel 114 extends outward beyond the boundary of the outer ring wall 112, and the projected boundary of the heating panel 114 covers and is larger than the projected boundary of the outer ring wall 112. The heating panel 114 is used to dissipate the heat of the heating tube 120.

[0042] Specifically, the projected area of ​​the heating panel 114 is larger than that of the top plate 113. Designing a larger projected area for the heating panel 114 increases the heat dissipation area. In this embodiment, the first housing 110 is a simple structure composed of an inner ring wall 111, an outer ring wall 112, a top plate 113, and a heating panel 114. The inner ring wall 111 and outer ring wall 112 are assembled from aluminum profiles, and their enclosed area can be changed by adjusting the profile length. The top plate 113 and heating panel 114 can be manufactured without molds, thus their dimensions are not limited by the mold manufacturing method. When the number of heating tubes 120 increases, the lateral dimension of the first housing 110 needs to be changed. Therefore, it is only necessary to increase the profile length of the inner ring wall 111 and outer ring wall 112, and adjust the inner and outer ring diameters of the annular top plate and heating panel accordingly.

[0043] In this embodiment, the ring heater also includes a light assembly 400 and a connecting pipe 420. The light assembly 400 includes a second housing 410 and a light strip (not shown in the figure) disposed in the second housing 410. The second housing 410 is configured to surround the side of the first housing 110. The connecting pipe 420 is a hollow tube, and the two ends of the connecting pipe 420 are fixedly connected to the side of the first housing 110 and the side of the second housing 410, respectively.

[0044] In this embodiment, the second housing 410 includes an upper frame 411 and a lampshade 413. The bottom of the upper frame 411 has a groove 412 surrounding the first housing 110. The lamp strip is fixedly disposed in the groove 412. The top of the lampshade 413 protrudes and is inserted into the groove 412 for fixed connection.

[0045] like Figure 4 and Figure 5 As shown, in this embodiment, there is a gap between the second housing 410 and the first housing 110.

[0046] like Figure 1 and Figure 7 As shown, in this embodiment, the support tube 300 is a hollow tube. One end of the support tube 300 passes through the junction box 200 and extends into the interior, while the other end is installed on the top of the first housing 110. The top of the first housing 110 is provided with a wiring hole 115. The wiring of the heating tube 120 passes through the wiring hole 115 and the support tube 300 in sequence and then extends into the interior of the junction box 200.

[0047] Specifically, the light strip and other wiring first pass through the connecting tube 420 into the first housing 110, and together with the wiring of the heating tube 120, they pass through the wiring hole 115 and then enter the bracket tube 300. Finally, they pass through the bracket tube 300 and enter the junction box 200 to complete the wiring.

[0048] like Figures 6 to 8 As shown, in this embodiment, the ring heater also includes a mounting bracket 500. The mounting bracket 500 has a mounting groove 510 on its side along the vertical direction, and a notch 520 is provided in the middle of the mounting groove 510. The side of the junction box 200 is provided with a protrusion 210, which slides into the mounting groove 510 along the notch 520.

[0049] Specifically, the mounting bracket 500 is a bracket formed by bending a rectangular plate, including a horizontal plate and two vertical plates on both sides. The horizontal plate is fixedly connected to the mounting surface (such as a ceiling or suspended ceiling) by expansion screws, etc. The vertical plates have mounting grooves 510, which are vertical through grooves. The notch is connected to the mounting groove to form a "T"-shaped connecting groove.

[0050] Specifically, the junction box 200 is a disc-shaped box with an open top, designed to be fastened to the mounting surface and to enclose the wiring and mounting bracket 500. A protrusion is provided on the inner wall of the junction box 200, designed to slide into the mounting groove 510, allowing the junction box 200 to rest on the mounting bracket 500.

[0051] Specifically, the top of the mounting bracket 500 abuts against and is fixedly connected to the mounting surface. When the protrusion 210 slides into the mounting groove 510, it will fall to the bottom of the mounting groove 510 under the action of gravity. At this time, there is a height difference between the upper surface of the junction box 200 and the top of the mounting bracket 500, and a gap exists between the upper surface of the junction box 200 and the mounting surface. Workers can use this gap to complete tasks such as wiring arrangement, inspection, and installation.

[0052] In this embodiment, the mounting bracket 500 has a positioning hole 530, and the side of the junction box 200 has a fixing hole 220; when the protrusion 210 slides to the top position of the mounting groove 510, the positioning hole 530 and the fixing hole 220 are aligned; the ring heater also includes a fastener 600, which is used to fix the junction box 200 and the mounting bracket 500 through the positioning hole 530 and the fixing hole 220.

[0053] like Figure 8 As shown, specifically, when the worker lifts the ring-shaped heater from bottom to top, causing the protrusion 210 to move upwards within the mounting groove 510 to the top of the groove 510, the upper surface of the junction box 200 is flush with the top of the mounting bracket 500, with no height difference, and the upper surface of the junction box 200 abuts against the mounting surface without any gap. The positioning hole 530 aligns with the fixing hole 220, and the fastener 600 passes through the positioning hole 530 and the fixing hole 220 to securely connect the junction box 200 to the mounting bracket 500, completing the installation.

[0054] The ring-shaped heater in this embodiment has the following advantages compared to the prior art: 1. Existing panel heaters on the market typically have rectangular heating panels, while the corresponding heating elements are usually straight. This results in uneven heat diffusion around the heating element, significant differences in heat transfer efficiency along the major and minor axes, and uneven heat distribution across the panel. Under prolonged high-temperature operation, the heating panel may deform. In this embodiment, the heating panel 114 is designed as a ring, and the heating element 120 is an arc-shaped heating element concentric with the heating panel 114. Heat diffuses evenly from the heating element 120 to both sides along the center line, ensuring uniform heating at the edges of the heating surface 114 and preventing deformation.

[0055] 2. It is difficult to simultaneously achieve both concealed wiring and easy installation for a heater. However, in this embodiment, the wiring is routed through a hollow support tube 300 to the inside of the junction box 200. The heater is then suspended on the mounting bracket via a protrusion 210 on the side of the junction box 200. At this point, a gap exists between the upper surface of the junction box 200 and the mounting surface, allowing installers to connect and organize the wiring. Finally, the heater is lifted so that the upper surface of the junction box 200 abuts against the mounting surface, aligning the positioning hole 530 with the fixing hole 220. Fasteners are then passed through the positioning hole 530 and the fixing hole 220, completing the installation. There is no gap between the junction box 200 and the mounting surface, and the wiring is neatly concealed inside the junction box 200, preserving aesthetics while facilitating installation and maintenance.

[0056] like Figure 9 and Figure 10 As shown, this utility model also provides another embodiment of a ring heater. In order to ensure heat dissipation and fire prevention, a cover plate 800 and a limiting member 900 are added between the junction box 200 and the mounting bracket 500. The cover plate 800 divides the internal space of the junction box 200 into upper and lower parts. The lower space is used to accommodate electrical components, and the upper space is used as a safety isolation space between the electrical components and the ceiling.

[0057] In this embodiment, the ring-shaped heater further includes a cover plate 800 and a limiting member 900. The limiting member 900 is disposed between the cover plate 800 and the mounting bracket 500. Expansion screws pass through the cover plate 800, the limiting member 900, and the mounting bracket 500 in sequence before being nailed into the mounting surface (e.g., ceiling or suspended ceiling) for fixed connection. The limiting member 900 is a hollow cylindrical sleeve used to separate the cover plate 800 from the mounting bracket 500, allowing the cover plate 800 to suspend inside the junction box 200. A wiring through hole 810 is provided on the cover plate 800. The shape of the cover plate 800 is the same as the cross-sectional shape of the junction box 200, dividing the interior of the junction box 200 into upper and lower spaces.

[0058] Specifically, the height of the limiting component 900 must ensure that there is at least a 10mm gap between the cover plate 800 and the mounting surface, forming an upper space inside the junction box 200. This space is used to ensure a safe clearance and to accommodate the wires.

[0059] Specifically, first, the cover plate 800, the limiting component 900, and the mounting bracket 500 are fixed to the mounting surface together using expansion screws. Then, the power cable from the mounting surface passes through the cable routing hole 810, and the junction box 200 is hung on the mounting bracket 500. Specifically, after the protrusion 210 slides into the mounting groove 510, it will fall to the bottom of the mounting groove 510 under gravity, leaving the junction box 200 suspended in the air. Next, the power cable from the mounting surface is connected to the motherboard and other circuits inside the junction box, and the cable is then neatly arranged inside the junction box 200. Finally, the junction box 200 is pushed up, and the fastener 600 passes through the positioning hole 530 and the fixing hole 220 to securely connect the junction box 200 to the mounting bracket 500. After the junction box 200 is installed in place, any excess cable will be coiled in the space between the cover plate 800 and the ceiling.

[0060] Without the cover plate 800, the interior of the junction box 200 would be very cluttered, making cable management and storage difficult. If the cables aren't properly organized, some cables might dart out and get stuck between the top surface of the junction box 200 and the mounting surface when it's pushed up, hindering installation. With the cover plate 800, most power cables are confined below it. The 10mm gap between the cover plate 800 and the ceiling contains no other components, only a few redundant cables, making storage much easier.

[0061] In summary, this invention, by arranging at least one heating element 120 end-to-end within a cylindrical annular housing 110, allows heat to diffuse symmetrically and evenly from the heating element 120 to the entire heating panel 114, forming a circular heating area. Furthermore, the junction box 200 is located within the circular hollow area of ​​the first housing 110. This allows for easy installation of the heater, connection and maintenance of the wiring, by first suspending the heater and then fixing the junction box 200 to conceal the wiring. The annular shape not only provides excellent heat dissipation and uniform heating area but also meets users' aesthetic requirements.

[0062] Moreover, the heat is transferred symmetrically and evenly to the heating panel 114 through the heating tube 120 along the center line, and the edge of the heating panel 114 is heated evenly and will not deform due to temperature difference.

[0063] Moreover, the projected area of ​​the heating panel 114 is larger than that of the outer ring wall 112 and the top plate 113. The heating panel 114 is used to dissipate the heat of the heating tube 120. The large area of ​​the heating panel 114 is beneficial to improving the heat dissipation efficiency.

[0064] Furthermore, the heating panel 114 is not limited to mold making, allowing for a wider range of manufacturing methods, including cheaper options. The heating panel 114 is flat, without any raised or recessed structures or reinforcing ribs, achieving a completely flat appearance. The aluminum profile also eliminates the need for specific mold-making techniques, allowing for a wider selection of aluminum materials, including lower-cost options. The heating element 120 is directly fixed to the heating panel 114, acting as a reinforcing rib, making the heating panel 114 more aesthetically pleasing and easily accepted by the market.

[0065] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A ring-shaped heater made of a heating element, characterized in that, The device includes a heating element, a junction box, and a support tube. The heating element includes a first housing and a heating tube. The first housing is cylindrical in shape, and the heating tube is arc-shaped. At least one heating tube is arranged in the first housing with its ends close together, and there is a gap between the ends of the heating tube to form a circular heating area. The junction box is positioned above the first housing and is located vertically within the circular hollow area of ​​the first housing; The two ends of the support tube are fixedly connected to the junction box and the first housing, respectively.

2. A ring-shaped heater made of a heating element as described in claim 1, characterized in that, The first housing includes an inner ring wall, an outer ring wall, a top plate, and a heating panel. The top plate is fixedly connected to the protrusions extending from the sides of the inner ring wall and the outer ring wall. The heating panel is fixedly connected to the bottom of the inner ring wall and the outer ring wall, forming the internal space of the first housing.

3. A ring-shaped heater made of a heating element as described in claim 2, characterized in that, The heating element is fixedly connected to the heating panel, the center of the heating element coincides with the center of the first housing, and the distances between the left and right sides of the heating element and the inner and outer ring walls are equal.

4. A ring-shaped heater made of a heating element as described in claim 2, characterized in that, The outer edge of the heating panel extends outward beyond the boundary of the outer ring wall, and the projected boundary of the heating panel covers and is larger than the projected boundary of the outer ring wall. The heating panel is used to dissipate the heat of the heating tube.

5. A ring-shaped heater made of a heating element as described in claim 1, characterized in that, The ring-shaped heater also includes a light assembly and a connecting pipe. The light assembly includes a second housing and a light strip disposed within the second housing. The second housing is configured to surround the side of the first housing. The connecting pipe is a hollow tube, and its two ends are fixedly connected to the side of the first housing and the side of the second housing, respectively.

6. A ring-shaped heater made of a heating element as described in claim 5, characterized in that, The second housing includes an upper frame and a lampshade. The bottom of the upper frame has a groove that surrounds the first housing. The lamp strip is fixedly installed in the groove. The top of the lampshade protrudes and is inserted into the groove for fixed connection.

7. A ring-shaped heater made of a heating element as described in claim 6, characterized in that, There is a gap between the second housing and the first housing.

8. A ring-shaped heater made of a heating element as described in claim 1, characterized in that, The support tube is a hollow tube. One end of the support tube passes through the junction box and extends into the interior, while the other end is installed on the top of the first housing. A wiring hole is provided on the top of the first housing. The wiring of the heating element passes through the wiring hole and the support tube in sequence and then extends into the interior of the junction box.

9. A ring-shaped heater made of a heating element as described in claim 1, characterized in that, The ring-shaped heater also includes a mounting bracket, the side of which has a mounting groove in the vertical direction, and a notch in the middle of the mounting groove; the side of the junction box has a protrusion, which slides into the mounting groove along the notch.

10. A ring-shaped heater made of a heating element as described in claim 9, characterized in that, The mounting bracket has a positioning hole, and the side of the junction box has a fixing hole; when the protrusion slides to the top position of the mounting groove, the positioning hole and the fixing hole are aligned; the ring heater also includes a fastener, which is used to pass through the positioning hole and the fixing hole to fix the junction box and the mounting bracket.

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