Support and heating device

By designing a bracket with slider and chute, combined with the structure of mating ribs and holes, the problem of screw tightening due to insufficient thickness in the prior art is solved, and the stability and easy disassembly and assembly of the heating device are achieved.

CN222211283UActive Publication Date: 2024-12-20GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO LTD
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Patent Information

Application Number
CN202420939382.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2024-12-20
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

In existing heating appliances, the thickness of the bracket and the shell is thin, resulting in the screw being not tightened and slipping is prone to occur, affecting the assembly reliability.

Method used

A bracket is designed, including a support section, a connecting section, a first connecting section and a first sliding section. Through the fitting of the slider and the slide groove, the bracket is ensured to have a stable connection with the heating member, and through the fitting of the mating ribs and holes. , avoid separation of the bracket from the housing.

Benefits of technology

It improves the reliability and stability of the disassembly and assembly of the bracket, the heating part and the shell, avoids accidental separation caused by insufficient thickness, simplifies the assembly process, and improves the assembly stability and reliability of the product.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a support and a heating device. The support is used for the heating device, the heating device comprises a heating piece and a shell, and the support comprises a supporting section and a fixing section; the first connecting part is arranged on the supporting section, the first connecting part comprises one of a connecting hole and an inverted buckle, and the first connecting part is used for being connected with a heating piece; the first sliding part is connected to one side of the supporting section in the direction perpendicular to the thickness direction of the supporting section, and the first sliding part comprises one of a sliding block and a sliding groove; the connecting section is connected with the supporting section; the first matching part is arranged on the connecting section, the first matching part comprises one of a matching hole and a matching convex rib, and the first matching part is used for being connected with the shell. According to the invention, the assembly of the bracket, the heating piece and the shell is not limited by the thickness of the shell and the bracket while the effectiveness and feasibility of the detachable connection of the bracket, the heating piece and the shell are ensured, so that the situation that the bracket, the heating piece and the shell are accidentally separated can be effectively avoided.
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Description

Technical Field

[0001] The present application relates to the technical field of heating devices, and in particular to a bracket and a heating device. Background Art

[0002] In the related art, the electric heating furnace includes a shell, a stove plate and a bracket, the bracket and the stove plate are fastened and connected by screws, and the bracket and the shell are fastened and connected by screws. The shell and the bracket are both thin, and the effective bite length between the screw and the shell, and the effective bite length between the screw and the bracket are both between 0.5mm and 1mm. In this way, it is easy for the screw to slip due to insufficient bite length, resulting in poor assembly reliability of the product. Utility Model Content

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first aspect of the present application provides a bracket.

[0005] A second aspect of the present application provides a heating device.

[0006] In view of this, the first aspect of the present application provides a bracket for a heating device, the heating device includes a heating element and a shell, the bracket includes: a supporting section; a first connecting portion, provided in the supporting section, the first connecting portion includes one of a connecting hole and an undercut, and the first connecting portion is used to connect the heating element; a first sliding portion, along a thickness direction perpendicular to the supporting section, the first sliding portion is connected to one side of the supporting section, the first sliding portion includes one of a slider and a slide groove; a connecting section, connected to the supporting section; a first mating portion, provided in the connecting section, the first mating portion includes one of a mating hole and a mating rib, and the first mating portion is used to connect the shell.

[0007] The present application provides a bracket for a heating device, which includes a heating element and a shell. The bracket and the heating element are both located inside the shell, and the heating element and the shell are detachably connected via the bracket.

[0008] Specifically, the bracket includes a supporting section and a connecting section. The bracket also includes a first connecting portion, a first sliding portion and a first matching portion. The first connecting portion and the first sliding portion are both connected to the supporting section, and the first matching portion is connected to the connecting section.

[0009] The heating element is provided with a second connection portion. The bracket includes a connection hole, and the heating element includes an undercut. Alternatively, the bracket includes an undercut, and the heating element includes a connection hole. The support section and the heating element are detachably connected through the connection hole and the undercut. The undercut can be inserted into the connection hole, and the undercut has the function of limiting the distance between the support section and the heating element, thereby preventing the support section from being separated from the heating element.

[0010] The heating element is provided with a second sliding part. The bracket includes a slider, and the heating element includes a slide groove. Or the bracket includes a slide groove, and the heating element includes a slider. The slider is slidably connected to the slide groove. Specifically, along a thickness direction perpendicular to the support section, the first sliding part is connected to one side of the support section. The slider cooperates with the slide groove to limit the sliding path of the bracket relative to the heating element, so as to ensure the matching size of the first connecting part and the second connecting part, and provide reliable structural support for the detachable connection of the first connecting part and the second connecting part.

[0011] When assembling the bracket and the heating element, the support section is supported on one side end surface of the heating element, and the bracket is pushed so that the slider slides along the slide groove, and the distance between the connecting hole and the undercut decreases accordingly until the undercut is inserted into the connecting hole and engages with the hole wall of the connecting hole. The undercut cooperates with the connecting hole to limit the displacement of the support section and the heating element, so that the support section will not slip off the heating element.

[0012] When the bracket and the shell are assembled, the connecting section moves accordingly, and the distance between the matching rib and the matching hole decreases accordingly, until the matching rib is inserted into the matching hole. The matching rib and the matching hole cooperate to limit the displacement of the connecting section and the shell, so that the connecting section will not be separated from the shell.

[0013] The present application reasonably arranges the structure of the bracket, while ensuring the effectiveness and feasibility of the detachable connection between the bracket, the heating element and the shell, avoids the use of fasteners such as screws in the related technology, so that the assembly of the bracket, the heating element and the shell is not limited by the thickness of the shell and the bracket, and can effectively avoid the accidental separation of the bracket, the heating element and the shell, which is beneficial to improving the stability and reliability of the product assembly, and has the advantages of simple disassembly and assembly and easy operation.

[0014] According to the above-mentioned bracket of the present application, the following additional technical features may also be provided:

[0015] In some embodiments, optionally, the number of the first sliding parts is two, and the supporting section is connected between the two first sliding parts.

[0016] In this embodiment, the structure of the bracket is further defined so that the bracket includes two first sliding parts, and the support section is connected between the two first sliding parts. It can be understood that the heating element is provided with two second sliding parts, and each first sliding part cooperates with one second sliding part.

[0017] The support section is connected between the two first sliding parts. This arrangement increases the sliding fit area and sliding fit angle between the bracket and the heating element, so that the bracket can slide stably relative to the heating element, and can ensure the matching size of the bracket and the heating element, avoiding the bracket from tilting relative to the heating element, and providing reliable structural support for the effective disassembly and assembly of the first connecting part of the bracket and the second connecting part of the heating element.

[0018] It can be understood that the first connecting portion is located between the two first sliding portions.

[0019] In some embodiments, optionally, the first sliding portion has a starting end and an ending end that are relatively set, and the bracket also includes: a buckle, the first end of the buckle is connected to the starting end, the buckle extends in a direction away from the first sliding portion, and in the thickness direction of the supporting section, the position where the second end of the buckle is located has a height difference with the position where the supporting section is located, and the buckle is used to connect the heating element; wherein, the extension direction of the undercut and the extension direction of the buckle are arranged opposite to each other.

[0020] In this embodiment, the structure of the bracket is further defined, so that the bracket also includes a buckle. The heating element is provided with a buckle hole. The buckle and the buckle hole are detachably connected to achieve a detachable connection between the support section and the heating element.

[0021] Specifically, the first sliding portion has a starting end and a terminating end that are arranged opposite to each other. When the bracket and the heating element are assembled, the starting end of the first sliding portion contacts the second sliding portion of the heating element before the terminating end. The first end of the buckle is connected to the starting end, and the buckle extends in a direction away from the first sliding portion, so that in the thickness direction of the support section, the position where the second end of the buckle is located has a height difference with the position where the support section is located. In other words, the second end of the buckle is tilted compared to the support section. In this way, structural support is provided for the buckle to be smoothly inserted into the clamping hole.

[0022] Among them, the extension direction of the undercut and the extension direction of the buckle are arranged opposite to each other, and the cooperation between the buckle and the card hole can limit the support section in the thickness direction of the heating element. The cooperation between the buckle and the card hole can also limit the support section in the direction from the outer edge of the heating element to the middle of the heating element, which can ensure the matching size of the bracket and the heating element.

[0023] The first connecting portion, the first sliding portion and the buckle cooperate to ensure effective assembly of the support section and the heating element, while also effectively limiting the displacement of the support section relative to the heating element, thereby ensuring effective assembly dimensions of the bracket and the heating element.

[0024] In some embodiments, optionally, the number of the buckles is two, and each buckle is connected to a first sliding portion.

[0025] In this embodiment, the number of the buckle and the matching structure of the buckle and the first sliding part are further defined.

[0026] There are two buckles, each of which is connected to one first sliding part, that is, two buckles cooperate with two first sliding parts.

[0027] It can be understood that the heating element is provided with two clamping holes, each of which is connected with a buckle.

[0028] This arrangement increases the matching area and matching angle between the bracket and the heating element, so that the bracket can be effectively assembled with the heating element, and can ensure the matching dimensions of the bracket and the heating element, avoiding the bracket from tilting relative to the heating element.

[0029] In some embodiments, optionally, when the first connecting portion includes an undercut, the first end of the undercut is connected to the support segment, the second end of the undercut extends in a direction away from the support segment, and the second end of the undercut is spaced apart from the support segment.

[0030] In this embodiment, the matching structure of the first connecting portion and the supporting segment is further defined.

[0031] The undercut has a first end and a second end. When the first connection portion includes the undercut, the first end of the undercut is connected to the support section, the second end of the undercut extends in a direction away from the support section, and the second end of the undercut is spaced apart from the support section. In other words, the undercut is tilted relative to the support section, so that structural support is provided for the undercut to be effectively inserted into the connection hole, and the effective cooperation between the undercut and the connection hole can be ensured, which can play a role in limiting the separation of the support section from the heating element.

[0032] In some embodiments, optionally, the support segment is provided with a first opening, the first end of the undercut is connected to the mouth wall of the first opening, and the mouth wall of the first opening is located on the outside of the undercut.

[0033] In this embodiment, the matching structure of the first connecting portion and the supporting segment is further defined.

[0034] The support section is provided with a first opening, and the first end of the undercut is connected to the mouth wall of the first opening, and the mouth wall of the first opening is located on the outside of the undercut. That is, along the thickness direction of the support section, the positive projection of the undercut on the support section is located inside the first opening. In other words, the area of ​​the region enclosed by the mouth wall of the first opening is larger than the projection area of ​​the support section. This arrangement can avoid the situation where the flash, barbs, etc. between the mouth wall of the first opening and the undercut hinder the effective assembly of the undercut and the connecting hole. The undercut can be effectively inserted into or removed from the connecting hole. If the undercut cannot be inserted into the connecting hole, the support section cannot be effectively assembled with the heating element. And this arrangement can effectively avoid the situation where the flash, barbs, etc. between the mouth wall of the first opening and the undercut affect the assembly dimensions of the bracket and the heating element.

[0035] In some embodiments, optionally, the bracket further includes: a limiting segment connected to the supporting segment, at least a portion of the limiting segment extends along the thickness direction of the supporting segment, and the first connecting portion and the first sliding portion are located on the same side of the limiting segment.

[0036] In this embodiment, the structure of the bracket is further defined, so that the bracket also includes a limiting section, the limiting section is connected to the supporting section, and at least a part of the limiting section extends along the thickness direction of the supporting section. That is, the structure enclosed by the supporting section and the limiting section is L-shaped.

[0037] For example, the heating element has a first end face and a second end face that are arranged opposite to each other, and the heating element also has an outer peripheral surface that is connected between the first end face and the second end face. The limiting section abuts against the outer peripheral surface, and the supporting section abuts against the first end face.

[0038] The limiting section, the supporting section, the first connecting portion and the first sliding portion cooperate with each other to increase the matching area and matching angle between the bracket and the heating element, so that the bracket can be stably assembled with the heating element.

[0039] The first connecting portion and the first sliding portion are located on the same side of the limiting section, and the limiting section will not interfere with the first connecting portion and the first sliding portion, thereby ensuring effective assembly of the bracket and the heating element.

[0040] In some embodiments, optionally, the connecting section is arranged in a bent manner.

[0041] In this embodiment, the structure of the connecting section is further limited so that the connecting section is arranged in a bending manner. This arrangement enhances the structural strength and rigidity of the connecting section, can improve the deformation resistance of the connecting section, can ensure the matching dimensions of the bracket connecting the heating element and the shell, and can play a role in effectively supporting and fixing the heating element.

[0042] In some embodiments, optionally, the connecting segment includes a plurality of sub-segments, the plurality of sub-segments are connected in sequence, and any two adjacent sub-segments have different extension directions; and the first matching portion is provided at the connection between two adjacent sub-segments.

[0043] In this embodiment, the structure of the connecting segment is further defined such that the connecting segment includes a plurality of sub-segments.

[0044] Multiple sub-segments are connected in sequence, and any two adjacent sub-segments extend in different directions, such as forming a corner at the connection of any two adjacent sub-segments. This arrangement meets the use requirements of the bending arrangement of the connecting segment, can enhance the structural strength and rigidity of the connecting segment, can improve the deformation resistance of the connecting segment, and can ensure the matching dimensions of the bracket, the heating element and the shell.

[0045] Specifically, the first matching portion is arranged at the connection between two adjacent sub-segments to provide spatial support for the matching hole and the matching convex rib, so that the matching convex rib can be smoothly inserted into the matching hole.

[0046] In some embodiments, optionally, the bracket further includes: reinforcing ribs, which connect the connecting section and the supporting section.

[0047] In this embodiment, the structure of the bracket is further limited so that the bracket also includes reinforcing ribs, which connect the connecting section and the supporting section. The structural setting of the reinforcing ribs can enhance the structural strength of the connecting section and the supporting section, enhance the deformation resistance of the connecting section and the supporting section, ensure the matching dimensions of the bracket, the heating element and the shell, and play a role in effectively supporting and fixing the heating element.

[0048] Optionally, the reinforcing rib includes a first sub-rib, and the first reinforcing rib is used to connect the supporting segment and the sub-segment adjacent to the supporting segment. That is, the connecting segment includes a plurality of sub-segments, and the plurality of sub-segments are connected in sequence, and the sub-segment located at the end is connected to the supporting segment. The first reinforcing rib connects the supporting segment and the sub-segment adjacent to the supporting segment, which can enhance the structural strength of the connection between the supporting segment and the sub-segment adjacent thereto, is conducive to improving the structural strength of the supporting segment and the connecting segment, can enhance the deformation resistance of the connecting segment and the supporting segment, can ensure the matching dimensions of the bracket, the heating element and the shell, and can effectively support and fix the heating element.

[0049] Optionally, the reinforcing rib includes a second sub-rib, and the second sub-rib connects two adjacent sub-segments. That is, the connecting segment includes multiple sub-segments, and the multiple sub-segments are connected in sequence. The second sub-rib connects two adjacent sub-segments, which can enhance the structural strength of the connection between the multiple sub-segments, is conducive to improving the structural strength of the supporting segment and the connecting segment, can enhance the deformation resistance of the connecting segment and the supporting segment, can ensure the matching size of the bracket, the heating element and the shell, and can effectively support and fix the heating element.

[0050] In some embodiments, optionally, there are multiple reinforcing ribs, a portion of the multiple reinforcing ribs are located on the first side of the undercut, and another portion of the multiple reinforcing ribs are located on the second side of the undercut.

[0051] In this embodiment, the number and arrangement positions of the reinforcing ribs are further defined.

[0052] There are multiple reinforcing ribs, a portion of the multiple reinforcing ribs are located on the first side of the undercut, and another portion of the multiple reinforcing ribs are located on the second side of the undercut.

[0053] This arrangement increases the matching area and matching angle between the reinforcing ribs and the connecting section and the supporting section, and can effectively enhance the structural strength and rigidity of the bracket.

[0054] In some embodiments, optionally, the bracket is an elastic member.

[0055] In this embodiment, the structure of the bracket is further limited so that the bracket is an elastic member. For example, when the bracket and the heating element are disassembled, and when the bracket and the housing are disassembled, the bracket can be squeezed to separate the undercut from the connecting hole, and the matching rib from the matching hole. This has the advantage of convenient assembly and disassembly.

[0056] In addition, the bracket is an elastic member. When assembling the heating device, the matching size of the heating element and the inner surface of the shell can be ensured by squeezing the bracket, so as to avoid the displacement of the heating element relative to the shell.

[0057] The second aspect of the present application proposes a heating device, comprising: a shell; a heating element located in the shell; and at least one bracket as in the first aspect, the bracket is located in the shell, and the heating element and the shell are detachably connected through the bracket.

[0058] The heating device provided in the present application includes a shell, a heating element and at least one bracket. Since the heating device includes the bracket as in the first aspect, it has all the beneficial effects of the above-mentioned bracket, which will not be described one by one here.

[0059] In some embodiments, optionally, the heating element has a first end face, a second end face and an outer peripheral surface, the first end face and the second end face are arranged opposite to each other, and the outer peripheral surface is connected between the first end face and the second end face; the supporting section of the bracket abuts against the first end face, and the first end face is provided with a second connecting portion and a second sliding portion, the second connecting portion includes the other of a connecting hole and an undercut, and the second sliding portion includes the other of a slider and a sliding groove; a second matching portion is provided in the shell, and the second matching portion includes the other of a matching hole and a matching rib; the undercut and the connecting hole are detachably connected, and the matching rib and the matching hole are detachably connected.

[0060] In this embodiment, the matching structure of the heating element, the housing and the bracket is further defined.

[0061] The heating element comprises a first end surface, a second end surface and an outer peripheral surface. The first end surface and the second end surface are arranged opposite to each other, and the outer peripheral surface is connected between the first end surface and the second end surface.

[0062] The supporting section of the bracket abuts against the first end surface, and the first end surface is provided with a second connecting portion and a second sliding portion.

[0063] The second connection part includes the other of a connection hole and an undercut. For example, the first connection part includes the connection hole, and the second connection part includes the undercut. Alternatively, the first connection part includes the undercut, and the second connection part includes the connection hole.

[0064] The support section and the heating element are detachably connected through the connection hole and the undercut. The undercut can be inserted into the connection hole, and the undercut has the function of limiting the distance between the support section and the heating element, thereby preventing the support section from being separated from the heating element.

[0065] The second sliding part includes the other of a slider and a slide groove. For example, the first sliding part includes a slider, and the second sliding part includes a slide groove. Or the first sliding part includes a slide groove, and the second sliding part includes a slider. The slider is slidably connected to the slide groove. Specifically, along a thickness direction perpendicular to the support section, the first sliding part is connected to one side of the support section. The slider cooperates with the slide groove to limit the sliding path of the bracket relative to the heating element, so as to ensure the matching size of the first connecting part and the second connecting part, and provide reliable structural support for the detachable connection of the first connecting part and the second connecting part.

[0066] When assembling the bracket and the heating element, the support section is supported on the first end surface of the heating element, and the bracket is pushed so that the slider slides along the slide groove, and the distance between the connecting hole and the undercut decreases accordingly until the undercut is inserted into the connecting hole and engages with the hole wall of the connecting hole. The undercut cooperates with the connecting hole to limit the displacement of the support section and the heating element, so that the support section will not slip off the heating element.

[0067] The second matching portion includes the other of a matching hole and a matching convex rib. The first matching portion includes the matching hole, and the second matching portion includes the matching convex rib. Or the first matching portion includes the matching convex rib, and the second matching portion includes the matching hole.

[0068] When the bracket and the shell are assembled, the connecting section moves accordingly, and the distance between the matching rib and the matching hole decreases accordingly, until the matching rib is inserted into the matching hole. The matching rib and the matching hole cooperate to limit the displacement of the connecting section and the shell, so that the connecting section will not be separated from the shell.

[0069] The present application reasonably arranges the structure of the bracket, while ensuring the effectiveness and feasibility of the detachable connection between the bracket, the heating element and the shell, avoids the use of fasteners such as screws in the related technology, so that the assembly of the bracket, the heating element and the shell is not limited by the thickness of the shell and the bracket, and can effectively avoid the accidental separation of the bracket, the heating element and the shell, which is beneficial to improving the stability and reliability of the product assembly, and has the advantages of simple disassembly and assembly and easy operation.

[0070] In some embodiments, optionally, the limiting section of the bracket is arranged opposite to the outer peripheral surface of the heating element; the first end surface is also provided with a clamping hole, and the buckle of the bracket is detachably connected to the clamping hole.

[0071] In this embodiment, the matching structure of the bracket and the heating element is further defined, the limiting section of the bracket is arranged opposite to the outer peripheral surface of the heating element, the supporting section is in contact with the first end surface, and the structure enclosed by the supporting section and the limiting section is L-shaped.

[0072] The limiting section, the supporting section, the first connecting portion and the first sliding portion cooperate with each other to increase the matching area and matching angle between the bracket and the heating element, so that the bracket can be stably assembled with the heating element.

[0073] In some embodiments, optionally, when there are multiple supports, the multiple supports are arranged at intervals along the circumference of the heating element.

[0074] In this embodiment, the number of brackets and the distribution positions of the brackets are defined.

[0075] When there are multiple supports, the multiple supports are arranged at intervals along the circumferential direction of the heating element.

[0076] This arrangement can connect the heating element and the housing from multiple directions and angles, which can increase the matching area and matching angle of the bracket, the heating element and the housing. It can ensure the balance and consistency of the forces at different positions of the heating element. It can ensure the matching size of the heating element and the housing, and avoid the heating element from tilting.

[0077] Optionally, a plurality of brackets are arranged at equal intervals.

[0078] Optionally, some of the multiple supports are arranged at equal intervals.

[0079] Optionally, when the second matching portion includes a matching convex rib, the matching convex rib extends toward the heating element to ensure that the matching convex rib and the matching hole are snap-fitted and connected.

[0080] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0081] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0082] Figure 1 A schematic structural diagram of a bracket of a first embodiment of the present application from a first viewing angle is shown;

[0083] Figure 2 A schematic structural diagram of a bracket of the first embodiment of the present application from a second viewing angle is shown;

[0084] Figure 3 A schematic structural diagram of the bracket of the first embodiment of the present application from a third viewing angle is shown;

[0085] Figure 4 A schematic structural diagram of the bracket of the first embodiment of the present application from a fourth viewing angle is shown;

[0086] Figure 5 A schematic structural diagram of the bracket of the first embodiment of the present application from a fifth viewing angle is shown;

[0087] Figure 6 A schematic structural diagram of the bracket of the first embodiment of the present application from a sixth viewing angle is shown;

[0088] Figure 7 A schematic structural diagram of a bracket according to a second embodiment of the present application from a first viewing angle is shown;

[0089] Figure 8 A schematic structural diagram of a bracket according to a second embodiment of the present application from a second viewing angle is shown;

[0090] Fig. 9 A schematic structural diagram of a bracket according to a second embodiment of the present application from a third viewing angle is shown;

[0091] Fig.10 A schematic structural diagram showing a bracket of the second embodiment of the present application from a fourth viewing angle;

[0092] Fig.11 A schematic structural diagram of a bracket according to a second embodiment of the present application from a fifth viewing angle is shown;

[0093] Fig.12 A schematic structural diagram of a bracket according to a second embodiment of the present application at a sixth viewing angle is shown;

[0094] Fig.13 A schematic structural diagram of a heating element and a bracket from a first perspective of a first embodiment of the present application is shown;

[0095] Fig.14 A schematic structural diagram showing a heating element and a bracket from a second viewing angle of the first embodiment of the present application is shown;

[0096] Fig.15 A schematic structural diagram showing a heating element and a bracket of the first embodiment of the present application from a third viewing angle;

[0097] Fig.16 for Fig.15 A partial enlarged view of the heating element and the bracket at point A shown;

[0098] Fig.17 A schematic structural diagram showing a heating element and a bracket of the first embodiment of the present application from a fourth viewing angle;

[0099] Fig.18 for Fig.17 A partial enlarged view of the heating element and the bracket at position B is shown;

[0100] Fig.19 An exploded view of a heating element and a bracket of a first embodiment of the present application is shown;

[0101] Fig. 20 A schematic structural diagram showing a heating element and a bracket from a first perspective according to a second embodiment of the present application is shown;

[0102] Fig.21A schematic structural diagram showing a heating element and a bracket from a second viewing angle according to a second embodiment of the present application is shown;

[0103] Fig. 22 A schematic structural diagram showing a heating element and a bracket of a second embodiment of the present application from a third viewing angle;

[0104] Fig.23 for Fig. 22 A partial enlarged view of the heating element and the bracket at position C is shown;

[0105] Fig.24 A schematic structural diagram showing a heating element and a bracket of the second embodiment of the present application from a fourth viewing angle;

[0106] Fig.25 for Fig.24 A partial enlarged view of the heating element and the bracket at position D shown;

[0107] Fig.26 An exploded view of a heating element and a bracket according to a second embodiment of the present application is shown;

[0108] Fig. 27 A partial structural schematic diagram of a heating device according to an embodiment of the present application from a first viewing angle is shown;

[0109] Fig.28 for Fig. 27 A partial enlarged view of the heating device at position E shown;

[0110] Fig.29 A partial structural schematic diagram of a heating device according to an embodiment of the present application from a second viewing angle is shown;

[0111] Fig.30 A partial structural schematic diagram of a heating element of a first embodiment of the present application from a first viewing angle is shown;

[0112] Fig.31 for Fig.30 A partial enlarged view of the heating element at position F shown;

[0113] Fig.32 A partial structural schematic diagram of a heating element of the first embodiment of the present application from a second viewing angle is shown;

[0114] Fig.33 A partial structural schematic diagram showing a third viewing angle of the heating element of the first embodiment of the present application;

[0115] Fig.34 A partial structural schematic diagram showing a fourth viewing angle of the heating element of the first embodiment of the present application;

[0116] Fig.35A partial structural schematic diagram showing a fifth viewing angle of the heating element of the first embodiment of the present application;

[0117] Fig.36 A partial structural schematic diagram showing a sixth viewing angle of the heating element of the first embodiment of the present application;

[0118] Fig.37 A partial structural schematic diagram showing a seventh viewing angle of the heating element of the first embodiment of the present application;

[0119] Fig.38 A partial structural schematic diagram of a heating element of a second embodiment of the present application from a first viewing angle is shown;

[0120] Fig.39 for Fig.38 A partial enlarged view of the heating element at position G shown;

[0121] Fig.40 A partial structural schematic diagram of a heating element from a second perspective of a second embodiment of the present application is shown;

[0122] Fig.41 A partial structural schematic diagram showing a third viewing angle of a heating element according to a second embodiment of the present application;

[0123] Fig.42 A partial structural schematic diagram of a heating element of the second embodiment of the present application from a fourth viewing angle is shown;

[0124] Fig.43 A partial structural schematic diagram of a heating element according to a second embodiment of the present application at a fifth viewing angle is shown;

[0125] Fig.44 A partial structural schematic diagram showing a sixth viewing angle of a heating element of the second embodiment of the present application;

[0126] Fig.45 A partial structural schematic diagram of a heating element of the second embodiment of the present application at a seventh viewing angle is shown;

[0127] Fig.46 A partial structural schematic diagram of a housing of an embodiment of the present application from a first viewing angle is shown;

[0128] Fig.47 for Fig.46 A partial enlarged view of the H portion of the shell shown;

[0129] Fig.48 A partial structural schematic diagram of a housing of an embodiment of the present application from a second viewing angle is shown;

[0130] Fig.49 A partial structural schematic diagram of a housing of an embodiment of the present application from a third viewing angle is shown;

[0131] Fig.50 A partial structural schematic diagram of a housing of an embodiment of the present application from a fourth viewing angle is shown;

[0132] Fig.51 A partial structural schematic diagram of a housing of an embodiment of the present application at a fifth viewing angle is shown;

[0133] Fig.52 A partial structural schematic diagram of a sixth viewing angle of a shell of an embodiment of the present application is shown.

[0134] in, Figures 1 to 52 The corresponding relationship between the reference numerals and component names in the figure is:

[0135] 100 bracket, 110 supporting section, 112 first opening, 120 first connecting part, 130 first sliding part, 132 starting end, 134 ending end, 140 connecting section, 142 sub-section, 150 first matching part, 160 buckle, 170 limiting section, 180 reinforcing rib, 182 first sub-rib, 184 second sub-rib, 20 heating device, 200 shell, 210 second matching part, 300 heating element, 310 first end face, 320 second end face, 330 outer peripheral surface, 340 second connecting part, 350 second sliding part, 360 slider, 370 slide groove, 380 connecting hole, 390 undercut, 400 matching hole, 410 matching convex rib, 420 clamping hole, 430 second opening. DETAILED DESCRIPTION

[0136] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0137] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0138] Refer to the following Figures 1 to 52 A bracket 100 and a heating device 20 according to some embodiments of the present application.

[0139] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 , Fig.29 , Fig.30 , Fig.31 , Fig.32 , Fig.33 , Fig.34 , Fig.35 , Fig.36 , Fig.37 , Fig.38 , Fig.39 , Fig.40 , Fig.41 , Fig.42 , Fig.43 , Fig.44 , Fig.45 , Fig.46 , Fig.47 , Fig.48 , Fig.49 , Fig.50 , Fig.51 and Fig.52 As shown, according to some embodiments of the present application, a bracket 100 is used for a heating device 20, the heating device 20 includes a heating element 300 and a shell 200, and the bracket 100 includes a supporting section 110, a connecting section 140, a first connecting portion 120, a first sliding portion 130 and a first matching portion 150.

[0140] The first connection portion 120 is disposed on the supporting section 110 .

[0141] The first connection portion 120 includes one of a connection hole 380 and an undercut 390 .

[0142] The first connection portion 120 is used to connect to the heating element 300 .

[0143] The first sliding portion 130 is connected to one side of the supporting segment 110 along a direction perpendicular to the thickness of the supporting segment 110 .

[0144] The first sliding portion 130 includes one of a sliding block 360 and a sliding groove 370 .

[0145] The connecting section 140 is connected to the supporting section 110 .

[0146] The first matching portion 150 is disposed on the connecting section 140 .

[0147] The first mating portion 150 includes one of a mating hole 400 and a mating rib 410 .

[0148] The first matching portion 150 is used to connect to the housing 200 .

[0149] The present application provides a bracket 100 for a heating device 20 , which includes a heating element 300 and a shell 200 . The bracket 100 and the heating element 300 are both located in the shell 200 , and the heating element 300 and the shell 200 are detachably connected via the bracket 100 .

[0150] Specifically, the bracket 100 includes a supporting section 110 and a connecting section 140. The bracket 100 also includes a first connecting portion 120, a first sliding portion 130 and a first matching portion 150. The first connecting portion 120 and the first sliding portion 130 are both connected to the supporting section 110, and the first matching portion 150 is connected to the connecting section 140.

[0151] The heating element 300 is provided with a second connecting portion 340. The bracket 100 includes a connecting hole 380, and the heating element 300 includes an undercut 390. Alternatively, the bracket 100 includes an undercut 390, and the heating element 300 includes a connecting hole 380. The support section 110 and the heating element 300 are detachably connected through the connecting hole 380 and the undercut 390. The undercut 390 can be inserted into the connecting hole 380, and the undercut 390 has the function of limiting the distance between the support section 110 and the heating element 300, thereby preventing the support section 110 from being separated from the heating element 300.

[0152] The heating element 300 is provided with a second sliding portion 350. The bracket 100 includes a slider 360, and the heating element 300 includes a slide groove 370. Or the bracket 100 includes a slide groove 370, and the heating element 300 includes a slider 360. The slider 360 is slidably connected to the slide groove 370. Specifically, along a thickness direction perpendicular to the support section 110, the first sliding portion 130 is connected to one side of the support section 110. The slider 360 cooperates with the slide groove 370 to limit the sliding path of the bracket 100 relative to the heating element 300, so as to ensure the matching size of the first connecting portion 120 and the second connecting portion 340, and provide reliable structural support for the detachable connection of the first connecting portion 120 and the second connecting portion 340.

[0153] When assembling the bracket 100 and the heating element 300, the support section 110 is supported on one side end surface of the heating element 300, pushing the bracket 100 so that the slider 360 slides along the slide groove 370, and the distance between the connecting hole 380 and the undercut 390 decreases accordingly, until the undercut 390 is inserted into the connecting hole 380 and engages with the hole wall of the connecting hole 380. The undercut 390 cooperates with the connecting hole 380 to limit the displacement of the support section 110 and the heating element 300, so that the support section 110 will not slide off the heating element 300.

[0154] When assembling the bracket 100 and the shell 200, the connecting section 140 moves accordingly, and the distance between the matching rib 410 and the matching hole 400 decreases accordingly, until the matching rib 410 is inserted into the matching hole 400. The matching rib 410 and the matching hole 400 cooperate to limit the displacement of the connecting section 140 and the shell 200, so that the connecting section 140 will not be separated from the shell 200.

[0155] The present application reasonably arranges the structure of the bracket 100, while ensuring the effectiveness and feasibility of the detachable connection between the bracket 100, the heating element 300 and the shell 200, avoiding the use of fasteners such as screws in the related technology, so that the assembly of the bracket 100, the heating element 300 and the shell 200 is not limited by the thickness of the shell 200 and the bracket 100, and can effectively avoid the accidental separation of the bracket 100, the heating element 300 and the shell 200, which is beneficial to improving the stability and reliability of the product assembly, and has the advantages of simple disassembly and assembly and easy operation.

[0156] In some embodiments, optionally, Figure 1 and Figure 7 As shown, the number of the first sliding parts 130 is two.

[0157] The supporting section 110 is connected between the two first sliding parts 130 .

[0158] In this embodiment, the structure of the bracket 100 is further defined, so that the bracket 100 includes two first sliding parts 130, and the support section 110 is connected between the two first sliding parts 130. It can be understood that the heating element 300 is provided with two second sliding parts 350, and each first sliding part 130 cooperates with one second sliding part 350.

[0159] The support section 110 is connected between the two first sliding parts 130. This arrangement increases the sliding fit area and the sliding fit angle between the bracket 100 and the heating element 300, so that the bracket 100 can slide stably relative to the heating element 300, and can ensure the matching dimensions of the bracket 100 and the heating element 300, avoiding the bracket 100 from tilting relative to the heating element 300, and providing reliable structural support for the effective disassembly and assembly of the first connecting part 120 of the bracket 100 and the second connecting part 340 of the heating element 300.

[0160] It can be understood that the first connecting portion 120 is located between the two first sliding portions 130 .

[0161] In some embodiments, optionally, Figure 7 , Fig. 22 and Fig.23 As shown, the first sliding portion 130 has a starting end 132 and a terminating end 134 that are oppositely disposed.

[0162] The bracket 100 further includes a buckle 160 .

[0163] The first end of the buckle 160 is connected to the starting end 132 .

[0164] The buckle 160 extends in a direction away from the first sliding portion 130 .

[0165] In the thickness direction of the supporting section 110 , there is a height difference between the position where the second end of the buckle 160 is located and the position where the supporting section 110 is located.

[0166] The buckle 160 is used to connect the heating element 300 .

[0167] The extension direction of the undercut 390 and the extension direction of the buckle 160 are arranged opposite to each other.

[0168] In this embodiment, the structure of the bracket 100 is further defined, so that the bracket 100 further includes a buckle 160. The heating element 300 is provided with a buckle hole 420. The buckle 160 and the buckle hole 420 are detachably connected to realize the detachable connection between the support section 110 and the heating element 300.

[0169] Specifically, the first sliding portion 130 has a starting end 132 and a terminating end 134 that are arranged opposite to each other. When the bracket 100 and the heating element 300 are assembled, the starting end 132 of the first sliding portion 130 contacts the second sliding portion 350 of the heating element 300 before the terminating end 134. The first end of the buckle 160 is connected to the starting end 132, and the buckle 160 extends in a direction away from the first sliding portion 130, so that in the thickness direction of the support section 110, the position where the second end of the buckle 160 is located has a height difference with the position where the support section 110 is located. In other words, the second end of the buckle 160 is tilted compared to the support section 110. In this way, structural support is provided for the buckle 160 to be smoothly inserted into the clamping hole 420.

[0170] Among them, the extension direction of the undercut 390 and the extension direction of the buckle 160 are arranged opposite to each other, and the buckle 160 cooperates with the clamping hole 420 to limit the support section 110 in the thickness direction of the heating element 300. The buckle 160 cooperates with the clamping hole 420 to limit the support section 110 in the direction from the outer edge of the heating element 300 to the middle of the heating element 300, which can ensure the matching size of the bracket 100 and the heating element 300.

[0171] The first connecting portion 120, the first sliding portion 130 and the buckle 160 cooperate to ensure effective assembly of the support section 110 and the heating element 300, while effectively limiting the displacement of the support section 110 relative to the heating element 300. The effective assembly dimensions of the bracket 100 and the heating element 300 can be ensured.

[0172] In some embodiments, optionally, Figure 7 As shown, there are two buckles 160 , and each buckle 160 is connected to one first sliding portion 130 .

[0173] In this embodiment, the number of the buckle 160 and the matching structure between the buckle 160 and the first sliding portion 130 are further defined.

[0174] There are two buckles 160 , and each buckle 160 is connected to one first sliding portion 130 . In other words, two buckles 160 are matched with two first sliding portions 130 .

[0175] It can be understood that the heating element 300 is provided with two clamping holes 420 , and each clamping hole 420 is matched and connected with a buckle 160 .

[0176] This arrangement increases the matching area and matching angle between the bracket 100 and the heating element 300, so that the bracket 100 can be effectively assembled with the heating element 300, and can ensure the matching dimensions of the bracket 100 and the heating element 300, avoiding the bracket 100 from tilting relative to the heating element 300.

[0177] In some embodiments, optionally, Figure 1 and Figure 7 As shown, when the first connection portion 120 includes the undercut 390 , the first end of the undercut 390 is connected to the support segment 110 .

[0178] The second end of the undercut 390 extends in a direction away from the supporting section 110 .

[0179] The second end of the undercut 390 is spaced apart from the supporting section 110 .

[0180] In this embodiment, the matching structure of the first connecting portion 120 and the supporting segment 110 is further defined.

[0181] The undercut 390 has a first end and a second end. When the first connection portion 120 includes the undercut 390, the first end of the undercut 390 is connected to the support section 110, the second end of the undercut 390 extends in a direction away from the support section 110, and the second end of the undercut 390 is spaced apart from the support section 110. In other words, the undercut 390 is tilted relative to the support section 110, so that the undercut 390 can be effectively inserted into the connection hole 380. The effective cooperation between the undercut 390 and the connection hole 380 can be ensured, and the support section 110 and the heating element 300 can be restricted from being separated.

[0182] In some embodiments, optionally, Figure 1 , Figure 6 , Figure 7 and Fig.12 As shown, the support segment 110 is provided with a first opening 112 .

[0183] The first end of the undercut 390 is connected to the wall of the first opening 112 .

[0184] The wall of the first opening 112 is located outside the undercut 390 .

[0185] In this embodiment, the matching structure of the first connecting portion 120 and the supporting segment 110 is further defined.

[0186] The support section 110 is provided with a first opening 112, and the first end of the undercut 390 is connected to the mouth wall of the first opening 112, and the mouth wall of the first opening 112 is located on the outside of the undercut 390. That is, along the thickness direction of the support section 110, the positive projection of the undercut 390 on the support section 110 is located inside the first opening 112. In other words, the area of ​​the region enclosed by the mouth wall of the first opening 112 is larger than the projection area of ​​the support section 110. This arrangement can prevent the flash, barbs, etc. between the mouth wall of the first opening 112 and the undercut 390 from hindering the effective assembly of the undercut 390 and the connecting hole 380. The undercut 390 can be effectively inserted into or removed from the connecting hole 380. If the undercut 390 cannot be inserted into the connecting hole 380, the support section 110 cannot be effectively assembled with the heating element 300. This arrangement can effectively prevent the flash, barbs, etc. between the mouth wall of the first opening 112 and the undercut 390 from affecting the assembly dimensions of the bracket 100 and the heating element 300.

[0187] In some embodiments, optionally, Fig.46 and Fig.47 As shown, the housing 200 is provided with a second opening 430 , the first end of the matching rib 410 is connected to the mouth wall of the second opening 430 , and the mouth wall of the second opening 430 is located outside the matching rib 410 .

[0188] In this embodiment, the matching structure of the housing 200 and the bracket 100 is further defined.

[0189] The shell 200 is provided with a second opening 430, and the first end of the matching rib 410 is connected to the mouth wall of the second opening 430, and the mouth wall of the second opening 430 is located outside the matching rib 410. That is, along the thickness direction of the shell 200, the positive projection of the matching rib 410 on the shell 200 is located inside the second opening 430. In other words, the area of ​​the area enclosed by the mouth wall of the second opening 430 is larger than the projection area of ​​the matching rib 410. This setting can prevent the flash, barbs, etc. between the mouth wall of the second opening 430 and the matching rib 410 from hindering the effective assembly of the matching rib 410 and the matching hole 400. The matching rib 410 can be effectively inserted into or withdrawn from the matching hole 400. If the matching rib 410 cannot be inserted into the matching hole 400, then the matching rib 410 cannot be effectively assembled with the heating element 300. This arrangement can effectively prevent the flash, barbs, etc. between the mouth wall of the second opening 430 and the matching rib 410 from affecting the assembly dimensions of the bracket 100 and the housing 200.

[0190] In some embodiments, optionally, Figure 1 , Figure 3 , Figure 4 , Figure 7 and Fig. 9 As shown, the bracket 100 further includes a limiting section 170 .

[0191] The limiting section 170 is connected to the supporting section 110 .

[0192] At least a portion of the limiting segment 170 extends along the thickness direction of the supporting segment 110 .

[0193] The first connecting portion 120 and the first sliding portion 130 are located on the same side of the limiting section 170 .

[0194] In this embodiment, the structure of the bracket 100 is further defined, so that the bracket 100 also includes a limiting section 170, the limiting section 170 is connected to the supporting section 110, and at least a portion of the limiting section 170 extends along the thickness direction of the supporting section 110. That is, the structure enclosed by the supporting section 110 and the limiting section 170 is L-shaped.

[0195] For example, the heating element 300 has a first end surface 310 and a second end surface 320 disposed opposite to each other, and further has an outer peripheral surface 330 connected between the first end surface 310 and the second end surface 320. The limiting section 170 abuts against the outer peripheral surface 330, and the supporting section 110 abuts against the first end surface 310.

[0196] The limiting section 170 , the supporting section 110 , the first connecting portion 120 and the first sliding portion 130 cooperate with each other to increase the matching area and matching angle between the bracket 100 and the heating element 300 , so that the bracket 100 can be stably assembled with the heating element 300 .

[0197] Optionally, a portion of the limiting segment 170 extends along the thickness direction of the supporting segment 110 .

[0198] Optionally, the limiting section 170 entirely extends along the thickness direction of the supporting section 110 .

[0199] The first connecting portion 120 and the first sliding portion 130 are located on the same side of the limiting section 170. The limiting section 170 does not interfere with the first connecting portion 120 and the first sliding portion 130. The effective assembly of the bracket 100 and the heating element 300 can be ensured.

[0200] In some embodiments, optionally, the connecting section 140 is arranged in a bent manner.

[0201] In this embodiment, the structure of the connecting section 140 is further limited so that the connecting section 140 is arranged in a bent manner. This arrangement enhances the structural strength and rigidity of the connecting section 140, can improve the deformation resistance of the connecting section 140, can ensure the matching dimensions of the bracket 100 connecting the heating element 300 and the shell 200, and can play a role in effectively supporting and fixing the heating element 300.

[0202] In some embodiments, optionally, Figure 1 , Figure 3 , Figure 7 and Fig. 9 As shown, the connecting segment 140 includes a plurality of sub-segments 142 .

[0203] The plurality of sub-segments 142 are connected in sequence.

[0204] Any two adjacent sub-segments 142 have different extending directions.

[0205] The first matching portion 150 is disposed at the connection between two adjacent sub-segments 142 .

[0206] In this embodiment, the structure of the connecting segment 140 is further defined such that the connecting segment 140 includes a plurality of sub-segments 142 .

[0207] The plurality of sub-segments 142 are connected in sequence, and the extension directions of any two adjacent sub-segments 142 are different, for example, the connection of any two adjacent sub-segments 142 forms a corner. This arrangement meets the use requirements of the bending arrangement of the connecting segment 140, can enhance the structural strength and rigidity of the connecting segment 140, can improve the anti-deformation ability of the connecting segment 140, and can ensure the matching dimensions of the bracket 100, the heating element 300 and the housing 200.

[0208] Specifically, the first matching portion 150 is disposed at the connection between two adjacent sub-segments 142 to provide spatial support for the matching hole 400 and the matching convex rib 410 , so that the matching convex rib 410 can be smoothly inserted into the matching hole 400 .

[0209] Optionally, the angle formed by two adjacent sub-segments 142 includes an acute angle.

[0210] Optionally, the angle formed by two adjacent sub-segments 142 includes an obtuse angle.

[0211] Optionally, the angle formed by two adjacent sub-segments 142 includes a right angle.

[0212] In some embodiments, optionally, Figure 1 As shown, the bracket 100 further includes a reinforcing rib 180 .

[0213] The reinforcing rib 180 connects the connecting section 140 and the supporting section 110 .

[0214] In this embodiment, the structure of the bracket 100 is further limited so that the bracket 100 also includes a reinforcing rib 180, which connects the connecting section 140 and the supporting section 110. The structural setting of the reinforcing rib 180 can enhance the structural strength of the connecting section 140 and the supporting section 110, enhance the deformation resistance of the connecting section 140 and the supporting section 110, ensure the matching dimensions of the bracket 100, the heating element 300 and the shell 200, and play a role in effectively supporting and fixing the heating element 300.

[0215] Alternatively, if Figure 1 , Figure 3 , Figure 4 , Figure 7 and Fig. 9 As shown, the reinforcing rib 180 includes a first sub-rib 182, and the first reinforcing rib 180 is used to connect the support segment 110 and the sub-segment 142 adjacent to the support segment 110. That is, the connecting segment 140 includes a plurality of sub-segments 142, and the plurality of sub-segments 142 are connected in sequence, and the sub-segment 142 located at the end is connected to the support segment 110. The first reinforcing rib 180 connects the support segment 110 and the sub-segment 142 adjacent to the support segment 110, which can enhance the structural strength of the connection between the support segment 110 and the sub-segment 142 adjacent thereto, is conducive to improving the structural strength of the support segment 110 and the connecting segment 140, can enhance the anti-deformation ability of the connecting segment 140 and the support segment 110, can ensure the matching size of the bracket 100, the heating element 300 and the shell 200, and can effectively support and fix the heating element 300.

[0216] Optionally, the reinforcing rib 180 includes a second sub-rib 184, and the second sub-rib 184 connects two adjacent sub-segments 142. That is, the connecting segment 140 includes a plurality of sub-segments 142, and the plurality of sub-segments 142 are connected in sequence. The second sub-rib 184 connects two adjacent sub-segments 142, which can enhance the structural strength of the connection of the plurality of sub-segments 142, is conducive to improving the structural strength of the support segment 110 and the connecting segment 140, can enhance the deformation resistance of the connecting segment 140 and the support segment 110, can ensure the matching size of the bracket 100, the heating element 300 and the shell 200, and can effectively support and fix the heating element 300.

[0217] Optionally, there are multiple second sub-ribs 184 , and at least one second sub-rib 184 is disposed at the connection between any two adjacent sub-segments 142 .

[0218] Optionally, the reinforcing rib 180 includes a first sub-rib 182 and a second sub-rib 184 .

[0219] Optionally, the number of the first sub-rib 182 and the number of the second sub-rib 184 are both plural.

[0220] In some embodiments, optionally, there are multiple reinforcing ribs 180 .

[0221] A portion of the plurality of reinforcing ribs 180 is located on a first side of the undercut 390 , and another portion of the plurality of reinforcing ribs 180 is located on a second side of the undercut 390 .

[0222] In this embodiment, the number and arrangement positions of the reinforcing ribs 180 are further defined.

[0223] There are multiple reinforcing ribs 180 , a portion of the plurality of reinforcing ribs 180 is located on the first side of the undercut 390 , and another portion of the plurality of reinforcing ribs 180 is located on the second side of the undercut 390 .

[0224] This arrangement increases the matching area and matching angle between the reinforcing rib 180 and the connecting section 140 and the supporting section 110 , and can effectively enhance the structural strength and rigidity of the bracket 100 .

[0225] In some embodiments, optionally, the bracket 100 is an elastic member.

[0226] In this embodiment, the structure of the bracket 100 is further limited, so that the bracket 100 is an elastic member. For example, when the bracket 100 and the heating element 300 are disassembled, and when the bracket 100 and the housing 200 are disassembled, the bracket 100 can be squeezed to separate the undercut 390 from the connecting hole 380 and the matching rib 410 from the matching hole 400. This has the advantage of convenient assembly and disassembly.

[0227] In addition, the bracket 100 is an elastic member. When assembling the heating device 20, the matching size of the heating element 300 and the inner surface of the housing 200 can be ensured by squeezing the bracket 100, so as to avoid displacement of the heating element 300 relative to the housing 200.

[0228] Optionally, the heating element 300 is a 65 manganese heating element.

[0229] like Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 , Fig.23 , Fig.24 , Fig.25 , Fig.26 , Fig. 27 , Fig.28 and Fig.29 As shown, the heating device 20 according to some embodiments of the present application includes a housing 200, a heating element 300 and at least one bracket 100 as in any of the above embodiments.

[0230] The heating element 300 is located in the housing 200 .

[0231] The bracket 100 is located in the housing 200 .

[0232] The heating element 300 and the housing 200 are detachably connected via the bracket 100 .

[0233] The heating device 20 provided in the present application includes a housing 200 , a heating element 300 and at least one bracket 100 .

[0234] Specifically, the bracket 100 includes a supporting section 110 and a connecting section 140. The bracket 100 also includes a first connecting portion 120, a first sliding portion 130 and a first matching portion 150. The first connecting portion 120 and the first sliding portion 130 are both connected to the supporting section 110, and the first matching portion 150 is connected to the connecting section 140.

[0235] The heating element 300 is provided with a second connecting portion 340. The bracket 100 includes a connecting hole 380, and the heating element 300 includes an undercut 390. Alternatively, the bracket 100 includes an undercut 390, and the heating element 300 includes a connecting hole 380. The support section 110 and the heating element 300 are detachably connected through the connecting hole 380 and the undercut 390. The undercut 390 can be inserted into the connecting hole 380, and the undercut 390 has the function of limiting the distance between the support section 110 and the heating element 300, thereby preventing the support section 110 from being separated from the heating element 300.

[0236] The heating element 300 is provided with a second sliding portion 350. The bracket 100 includes a slider 360, and the heating element 300 includes a slide groove 370. Or the bracket 100 includes a slide groove 370, and the heating element 300 includes a slider 360. The slider 360 is slidably connected to the slide groove 370. Specifically, along a thickness direction perpendicular to the support section 110, the first sliding portion 130 is connected to one side of the support section 110. The slider 360 cooperates with the slide groove 370 to limit the sliding path of the bracket 100 relative to the heating element 300, so as to ensure the matching size of the first connecting portion 120 and the second connecting portion 340, and provide reliable structural support for the detachable connection of the first connecting portion 120 and the second connecting portion 340.

[0237] When assembling the bracket 100 and the heating element 300, the support section 110 is supported on one side end surface of the heating element 300, pushing the bracket 100 so that the slider 360 slides along the slide groove 370, and the distance between the connecting hole 380 and the undercut 390 decreases accordingly, until the undercut 390 is inserted into the connecting hole 380 and engages with the hole wall of the connecting hole 380. The undercut 390 cooperates with the connecting hole 380 to limit the displacement of the support section 110 and the heating element 300, so that the support section 110 will not slide off the heating element 300.

[0238] When assembling the bracket 100 and the shell 200, the connecting section 140 moves accordingly, and the distance between the matching rib 410 and the matching hole 400 decreases accordingly, until the matching rib 410 is inserted into the matching hole 400. The matching rib 410 and the matching hole 400 cooperate to limit the displacement of the connecting section 140 and the shell 200, so that the connecting section 140 will not be separated from the shell 200.

[0239] The present application reasonably arranges the structure of the bracket 100, while ensuring the effectiveness and feasibility of the detachable connection between the bracket 100, the heating element 300 and the shell 200, avoiding the use of fasteners such as screws in the related technology, so that the assembly of the bracket 100, the heating element 300 and the shell 200 is not limited by the thickness of the shell 200 and the bracket 100, and can effectively avoid the accidental separation of the bracket 100, the heating element 300 and the shell 200, which is beneficial to improving the stability and reliability of the product assembly, and has the advantages of simple disassembly and assembly and easy operation.

[0240] In some embodiments, optionally, Figure 1 , Figure 7 , Fig.13 , Fig. 20 , Fig.30 , Fig.38 , Fig.46 and Fig.47 As shown, the heating element 300 has a first end surface 310 , a second end surface 320 and an outer peripheral surface 330 .

[0241] The first end surface 310 and the second end surface 320 are arranged opposite to each other.

[0242] The outer peripheral surface 330 is connected between the first end surface 310 and the second end surface 320 .

[0243] The supporting section 110 of the bracket 100 abuts against the first end surface 310 .

[0244] The first end surface 310 is provided with a second connecting portion 340 and a second sliding portion 350 .

[0245] The second connection portion 340 includes the other of the connection hole 380 and the undercut 390 .

[0246] The second sliding portion 350 includes the other of a sliding block 360 and a sliding groove 370 .

[0247] A second matching portion 210 is disposed in the housing 200 .

[0248] The second mating portion 210 includes the other of the mating hole 400 and the mating rib 410 .

[0249] The undercut 390 and the connecting hole 380 are detachably connected, and the matching rib 410 and the matching hole 400 are detachably connected.

[0250] In this embodiment, the matching structure of the heating element 300, the housing 200 and the bracket 100 is further defined.

[0251] The heating element 300 has a first end surface 310 , a second end surface 320 and an outer peripheral surface 330 . The first end surface 310 and the second end surface 320 are arranged opposite to each other, and the outer peripheral surface 330 is connected between the first end surface 310 and the second end surface 320 .

[0252] The supporting section 110 of the bracket 100 abuts against the first end surface 310 , and the first end surface 310 is provided with a second connecting portion 340 and a second sliding portion 350 .

[0253] The second connection portion 340 includes the other of the connection hole 380 and the undercut 390. For example, the first connection portion 120 includes the connection hole 380, and the second connection portion 340 includes the undercut 390. Alternatively, the first connection portion 120 includes the undercut 390, and the second connection portion 340 includes the connection hole 380.

[0254] The support section 110 and the heating element 300 are detachably connected through the connection hole 380 and the undercut 390. The undercut 390 can be inserted into the connection hole 380, and the undercut 390 has the function of limiting the distance between the support section 110 and the heating element 300, so as to prevent the support section 110 from being separated from the heating element 300.

[0255] The second sliding part 350 includes the other of a slider 360 and a slide groove 370. For example, the first sliding part 130 includes the slider 360, and the second sliding part 350 includes the slide groove 370. Or the first sliding part 130 includes the slide groove 370, and the second sliding part 350 includes the slider 360. The slider 360 is slidably connected to the slide groove 370. Specifically, along a thickness direction perpendicular to the support section 110, the first sliding part 130 is connected to one side of the support section 110. The slider 360 cooperates with the slide groove 370 to limit the sliding path of the bracket 100 relative to the heating element 300, so as to ensure the matching size of the first connecting part 120 and the second connecting part 340, and provide reliable structural support for the detachable connection of the first connecting part 120 and the second connecting part 340.

[0256] When assembling the bracket 100 and the heating element 300, the support section 110 is supported on the first end surface 310 of the heating element 300, pushing the bracket 100 so that the slider 360 slides along the slide groove 370, and the distance between the connecting hole 380 and the undercut 390 decreases accordingly, until the undercut 390 is inserted into the connecting hole 380 and engaged with the hole wall of the connecting hole 380, and the undercut 390 cooperates with the connecting hole 380 to limit the displacement of the support section 110 and the heating element 300, so that the support section 110 will not slide off the heating element 300.

[0257] The second mating portion 210 includes the other of the mating hole 400 and the mating rib 410. The first mating portion 150 includes the mating hole 400, and the second mating portion 210 includes the mating rib 410. Alternatively, the first mating portion 150 includes the mating rib 410, and the second mating portion 210 includes the mating hole 400.

[0258] When assembling the bracket 100 and the shell 200, the connecting section 140 moves accordingly, and the distance between the matching rib 410 and the matching hole 400 decreases accordingly, until the matching rib 410 is inserted into the matching hole 400. The matching rib 410 and the matching hole 400 cooperate to limit the displacement of the connecting section 140 and the shell 200, so that the connecting section 140 will not be separated from the shell 200.

[0259] The present application reasonably arranges the structure of the bracket 100, while ensuring the effectiveness and feasibility of the detachable connection between the bracket 100, the heating element 300 and the shell 200, avoiding the use of fasteners such as screws in the related technology, so that the assembly of the bracket 100, the heating element 300 and the shell 200 is not limited by the thickness of the shell 200 and the bracket 100, and can effectively avoid the accidental separation of the bracket 100, the heating element 300 and the shell 200, which is beneficial to improving the stability and reliability of the product assembly, and has the advantages of simple disassembly and assembly and easy operation.

[0260] In some embodiments, optionally, Fig.13 , Fig. 20 , Fig.38 and Fig.39 As shown, the limiting section 170 of the bracket 100 is arranged opposite to the outer peripheral surface 330 of the heating element 300 .

[0261] The first end surface 310 is further provided with a locking hole 420 .

[0262] The buckle 160 of the bracket 100 is detachably connected to the clamping hole 420 .

[0263] In this embodiment, the matching structure of the bracket 100 and the heating element 300 is further defined, and the limiting section 170 of the bracket 100 is arranged opposite to the outer peripheral surface 330 of the heating element 300. The supporting section 110 abuts against the first end surface 310. The structure enclosed by the supporting section 110 and the limiting section 170 is L-shaped.

[0264] The limiting section 170 , the supporting section 110 , the first connecting portion 120 and the first sliding portion 130 cooperate with each other to increase the matching area and matching angle between the bracket 100 and the heating element 300 , so that the bracket 100 can be stably assembled with the heating element 300 .

[0265] In some embodiments, optionally, when there are multiple brackets 100 , the multiple brackets 100 are arranged at intervals along the circumference of the heating element 300 .

[0266] In this embodiment, the number of the brackets 100 and the distribution positions of the brackets 100 are limited.

[0267] When the number of the bracket 100 is plural, the plurality of brackets 100 are arranged at intervals along the circumferential direction of the heating member 300 .

[0268] This arrangement can connect the heating element 300 and the housing 200 from multiple directions and multiple angles, and can increase the matching area and matching angle of the bracket 100, the heating element 300 and the housing 200. It can ensure the balance and consistency of the forces at different positions of the heating element 300. It can ensure the matching size of the heating element 300 and the housing 200, and avoid the heating element 300 from tilting.

[0269] Optionally, a plurality of brackets 100 are arranged at equal intervals.

[0270] Optionally, some of the multiple supports 100 are arranged at equal intervals.

[0271] Optionally, when the second matching portion 210 includes the matching convex rib 410 , the matching convex rib 410 extends toward the heating element 300 , so as to ensure that the matching convex rib 410 and the matching hole 400 are snap-fitted and connected.

[0272] Optionally, the bracket 100 is provided with an undercut 390 , and reinforcements are added to both sides of the bracket 100 to increase the strength of the structure. The two side extension planes of the bracket 100 (ie, the slider 360 ) are matched with the slide groove 370 .

[0273] Optionally, the bracket 100 is provided with an undercut 390, and reinforcements are added on both sides of the bracket 100 to increase the strength of the structure. The two side extension planes of the bracket 100 (ie, the slider 360) are matched with the slide groove 370, and the buckles 160 on both sides of the bracket 100 are matched with the clamping holes 420.

[0274] Optionally, the heating element 300 (eg, an electric heating stove) is provided with a connecting hole 380 and a sliding groove 370 .

[0275] Optionally, the electric heating stove is provided with a connecting hole 380 , a clamping hole 420 and a sliding groove 370 .

[0276] Optionally, some structures of the bracket 100 and the electric heating stove can be interchanged. For example, the bracket 100 is provided with an undercut 390, and the heating element 300 is provided with a connecting hole 380. For another example, the bracket 100 is provided with a connecting hole 380, and the heating element 300 is provided with an undercut 390. For example, the bracket 100 is provided with a slider 360, and the heating element 300 is provided with a slide groove 370. For another example, the bracket 100 is provided with a slide groove 370, and the heating element 300 is provided with a slider 360. For example, the bracket 100 is provided with a matching hole 400, and the housing 200 is provided with a matching rib 410. For another example, the bracket 100 is provided with a matching rib 410, and the housing 200 is provided with a matching hole 400.

[0277] The present application simplifies the assembly structure, and the bracket 100 and the heating element 300 can be installed by pushing the bracket 100, which has the advantages of simple and convenient installation. Compared with the electric heating furnace in the related art, the present application reduces the number of components and can effectively prevent the bracket 100, the heating element 300 and the housing 200 from assembly failure.

[0278] like Fig.13 , Fig.14 , Fig.17 , Fig.19 , Fig. 20 , Fig.21 , Fig.24 and Fig.26 As shown, the heating device 20 includes three brackets 100, a housing 200 and a heating element 300. The undercut 390 of the bracket 100 is inserted into the connecting hole 380 of the electric heating stove, so that the bracket 100 and the electric heating stove are reliably assembled and the bracket 100 is prevented from being separated from the electric heating stove. At the same time, this arrangement can simplify the assembly structure and reduce the number of assembly parts.

[0279] It can be understood that the heating device 20 includes a plurality of brackets 100 , and the number of the brackets 100 is determined by the size and shape of the electric heating hob.

[0280] like Figures 1 to 6 As shown, the two sides of the bracket 100 are provided with extension planes (i.e., sliders 360), and the bracket 100 is also provided with undercuts 390, reinforcing ribs 180, matching holes 400, support sections 110 and limit sections 170. This arrangement enables the bracket 100 to have the functions of support, limit, guide and anti-dropping. The bracket 100 is a 65 manganese steel bracket to ensure the strength and elasticity of the bracket 100.

[0281] like Figures 7 to 12 As shown, the two sides of the bracket 100 are provided with extension planes (i.e., sliders 360), and the bracket 100 is also provided with buckles 160, undercuts 390, reinforcing ribs 180, matching holes 400, support sections 110 and limit sections 170. This arrangement enables the bracket 100 to have the functions of support, limit, guide and anti-dropping. The bracket 100 is a 65 manganese steel bracket to ensure the strength and elasticity of the bracket 100.

[0282] like Fig.30 and Fig.31 As shown, the electric heating stove is provided with a connecting hole 380 and a sliding groove 370. The connecting hole 380 cooperates with the undercut 390 of the bracket 100, and the sliding groove 370 has the function of guiding the installation path of the bracket 100.

[0283] like Fig.38 and Fig.39 As shown, the electric heating stove is provided with a connecting hole 380, a clamping hole 420 and a sliding groove 370. The connecting hole 380 cooperates with the undercut 390 of the bracket 100 to prevent the bracket 100 from sliding out of the electric heating stove. The clamping hole 420 cooperates with the buckle 160 of the bracket 100 to prevent the bracket 100 from failing to assemble with the electric heating stove in the longitudinal and transverse directions. The sliding groove 370 has the function of guiding the installation path of the bracket 100.

[0284] like Fig.46 and Fig.47 As shown, the bottom shell of the shell 200 is provided with a turned-up clamping rib (ie, a matching convex rib 410 ) or a riveted column, and the matching convex rib 410 is used for flexible assembly with the bracket 100 , and can limit the displacement of the bracket 100 relative to the shell 200 .

[0285] like Fig.15 and Fig.16 As shown, the undercut 390 of the bracket 100 has a certain swing angle and elasticity, and the undercut 390 of the bracket 100 cooperates with the connecting hole 380 of the electric heating stove. A 0.3mm assembly gap is reserved in the horizontal direction, and this setting is conducive to the undercut 390 of the bracket 100 to be naturally stuck in the connecting hole 380 of the electric heating stove. The purpose of this setting is to make the undercut 390 of the bracket 100 touch the connecting hole 380 of the electric heating stove, which plays a role in preventing the undercut 390 from being disengaged and sliding out in the reverse direction.

[0286] When the bracket 100 needs to be disassembled, the undercut 390 of the bracket 100 is pressed downward in the vertical direction, and when the undercut 390 is separated from the connection hole 380, the bracket 100 is pushed away from the bracket 100 along the direction of the slide groove 370 to disassemble the bracket 100. The bracket 100 can be disassembled and assembled repeatedly, which has the advantage of convenient disassembly and assembly.

[0287] like Fig.17 and Fig.18 As shown, the slider 360 of the bracket 100 cooperates with the slide groove 370 of the electric heating plate furnace to play a role in guiding and preventing lateral and longitudinal failure. A 0.2mm assembly gap is reserved in the longitudinal direction and a 0.2mm assembly gap is reserved in the lateral direction. It is prevented that the burrs of the bracket 100 and the electric heating plate furnace are stuck to each other and cannot be installed. When installing the bracket 100 and the heating element 300, the slider 360 cooperates with the slide groove 370 of the electric heating plate, and when it is pushed into place, the undercut 390 of the bracket 100 pops into the connecting hole 380 of the electric heating plate.

[0288] like Fig. 22 and Fig.23 As shown, the undercut 390 of the bracket 100 has a certain swing angle and elasticity, and the undercut 390 of the bracket 100 cooperates with the connecting hole 380 of the electric heating stove. A 0.3mm assembly gap is reserved in the horizontal direction, and this setting is conducive to the undercut 390 of the bracket 100 to be naturally stuck in the connecting hole 380 of the electric heating stove. The purpose is to make the undercut 390 of the bracket 100 touch the connecting hole 380 of the electric heating stove, which plays a role in preventing the bracket 100 from disengaging and sliding out in the reverse direction. When the bracket 100 and the heating element 300 need to be disassembled, the undercut 390 of the bracket 100 is pressed downward in the vertical direction, and the undercut 390 is kept in this state until it is separated from the connecting hole 380, and the bracket 100 is pushed away in the direction of the slide groove 370 to achieve disassembly. The bracket 100 can be repeatedly disassembled and assembled, which has the advantage of convenient disassembly and assembly.

[0289] like Fig.24 and Fig.25 As shown, the slider 360 of the bracket 100 cooperates with the slide groove 370 of the electric heating stove plate to play a role in guiding and preventing horizontal and vertical failures. A 0.2mm assembly gap is reserved in the longitudinal direction and a 0.2mm assembly gap is reserved in the transverse direction. It is prevented that the burrs of the bracket 100 and the electric heating stove plate are stuck with each other and cannot be installed. The buckle 160 of the bracket 100 cooperates with the clamping hole 420 of the electric heating stove plate to prevent the bracket 100 from failing in the longitudinal and transverse assembly. When installing the bracket 100 and the heating element 300, the slider 360 of the bracket 100 cooperates with the slide groove 370 of the electric heating stove plate, and when it is pushed into place, the undercut 390 of the bracket 100 pops into the connecting hole 380 of the electric heating stove plate.

[0290] Optionally, the bracket 100 is a metal part.

[0291] In the stove product, the support 100 is used to support the energized heating component (ie, the heating element 300), and the support 100 is also used to fix and connect the housing 200. The support 100 is an elastic member.

[0292] In cooking appliances, the electric heating stove can generate heat when powered on.

[0293] In the cooker product, the housing 200 is used to carry the internal components and has the function of installing and fixing the internal components. The housing 200 has the function of containing the internal components.

[0294] In this application, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0295] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A bracket, characterized in that: Used for a heating device, the heating device comprises a heating element and a housing, and the bracket comprises: Support segment; A first connection portion, provided on the support section, the first connection portion comprising one of a connection hole and an undercut, and the first connection portion is used to connect the heating element; A first sliding portion, connected to one side of the supporting section along a direction perpendicular to the thickness of the supporting section, the first sliding portion comprising one of a sliding block and a sliding groove; A connecting section, connecting the supporting sections; The first matching portion is arranged on the connecting section, the first matching portion includes one of a matching hole and a matching rib, and the first matching portion is used to connect the shell.

2. The bracket according to claim 1, characterized in that: The number of the first sliding parts is two, and the supporting section is connected between the two first sliding parts.

3. The bracket according to claim 2, characterized in that: The first sliding portion has a starting end and a terminating end that are arranged opposite to each other, and the bracket further includes: A buckle, wherein the first end of the buckle is connected to the starting end, the buckle extends in a direction away from the first sliding portion, and in the thickness direction of the supporting section, a position where the second end of the buckle is located has a height difference with a position where the supporting section is located, and the buckle is used to connect the heating element; Wherein, the extension direction of the undercut and the extension direction of the buckle are arranged opposite to each other.

4. The bracket according to claim 3, characterized in that: The number of the buckles is two, and each of the buckles is connected to one of the first sliding parts.

5. The bracket according to any one of claims 1 to 4, characterized in that: When the first connecting portion includes the undercut, the first end of the undercut is connected to the supporting section, the second end of the undercut extends in a direction away from the supporting section, and the second end of the undercut is spaced apart from the supporting section.

6. The bracket according to any one of claims 1 to 4, characterized in that: Also includes: A limiting section is connected to the supporting section, at least a portion of the limiting section extends along the thickness direction of the supporting section, and the first connecting portion and the first sliding portion are located on the same side of the limiting section.

7. The support according to any one of claims 1 to 4, characterized in that: The connecting section is arranged in a bent manner.

8. The bracket according to claim 7, characterized in that: The connecting section includes a plurality of sub-segments, the plurality of sub-segments are connected in sequence, and any two adjacent sub-segments have different extension directions; The first matching portion is arranged at the connection between two adjacent sub-segments.

9. The support according to any one of claims 1 to 4, characterized in that: Also includes: A reinforcing rib is provided to connect the connecting section and the supporting section.

10. The bracket according to claim 9, characterized in that: There are multiple reinforcing ribs, a portion of which is located on the first side of the undercut, and another portion of which is located on the second side of the undercut.

11. The support according to any one of claims 1 to 4, characterized in that: The bracket is an elastic member.

12. A heating device, characterized in that: include: case; A heating element, located in the housing; and At least one bracket according to any one of claims 1 to 11, wherein the bracket is located in the shell, and the heating element and the shell are detachably connected via the bracket.

13. The heating device according to claim 12, characterized in that: The heating element has a first end surface, a second end surface and an outer peripheral surface, the first end surface and the second end surface are arranged opposite to each other, and the outer peripheral surface is connected between the first end surface and the second end surface; The support section of the bracket abuts against the first end surface, the first end surface is provided with a second connecting portion and a second sliding portion, the second connecting portion includes the other of the connecting hole and the undercut, and the second sliding portion includes the other of the sliding block and the sliding groove; A second matching portion is provided in the housing, and the second matching portion includes the other of the matching hole and the matching rib; The undercut and the connecting hole are detachably connected, and the matching rib and the matching hole are detachably connected.

14. The heating device according to claim 13, characterized in that The limiting section of the bracket is arranged opposite to the outer peripheral surface of the heating element; The first end surface is also provided with a clamping hole, and the buckle of the bracket is detachably connected to the clamping hole.

15. The heating device according to any one of claims 12 to 14, characterized in that When there are multiple supports, the multiple supports are arranged at intervals along the circumferential direction of the heating element.