Heating assembly and electric water heater

Abstract

The utility model discloses a heating assembly and an electric water heater, and relates to the technical field of water heaters. Wherein the heating assembly comprises a sleeve assembly, a heating pipe, a supporting piece and a fixing piece, one end of the sleeve assembly is closed, and the other end of the sleeve assembly is open; the heating pipe is arranged in the fixed pin sleeve assembly and partially extends out of the open end of the fixed pin sleeve assembly; the supporting piece is arranged at the open end of the fixing pin sleeve assembly and supports and limits the part, extending out of the fixing pin sleeve assembly, of the fixing pin heating pipe. The fixing piece is detachably connected with the fixing pin sleeve assembly in a clamped mode so as to fix the fixing pin supporting piece. According to the technical scheme provided by the utility model, the disassembly and assembly operation difficulty of the heating pipe is simplified, and the disassembly and assembly efficiency of the heating pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a heating component and an electric water heater. Background Art

[0002] The heating assembly is used as a heating element in an electric water heater. A heating assembly such as a dry-type heater generally has a heating tube and a sleeve. The sleeve is arranged inside the inner tank, and the heating tube is placed in the sleeve. When the heating tube is working, the heating tube is energized to convert electrical energy into heat energy, and the heat is exchanged with the water in the inner tank through the sleeve, thereby heating the water in the inner tank.

[0003] The heating tube in the related art is fixed in the sleeve by a nut structure. However, when the heating tube is disassembled and assembled, it is necessary to use tools to tighten the nut, which is time-consuming, and there are problems such as cumbersome operation and low disassembly and assembly efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a heating assembly, which aims to simplify the disassembly and assembly structure of the heating tube and improve the disassembly and assembly efficiency of the heating tube.

[0005] To achieve the above-mentioned purpose, the heating assembly proposed by the utility model comprises:

[0006] a sleeve assembly having one end closed and the other end open;

[0007] A heating tube is disposed in the sleeve assembly and partially extends out of an open end of the sleeve assembly;

[0008] a support member, disposed at an open end of the sleeve assembly, and supporting and limiting a portion of the heating tube extending out of the sleeve assembly; and

[0009] A fixing member is detachably connected to the sleeve assembly to fix the supporting member.

[0010] In one embodiment of the present application, the sleeve assembly includes:

[0011] a cannula, which is closed at one end and open at the other;

[0012] a flange mounting seat connected to the open end of the sleeve and opened corresponding to the position of the sleeve; the heating pipe is arranged in the sleeve and extends out of the flange mounting seat; and

[0013] A fixing column, arranged at one end of the flange mounting seat away from the sleeve;

[0014] The support member is installed on the fixing column and presses against the heating tube in the direction of the sleeve; the fixing member is detachably connected with the fixing column to fix the support member on the fixing column.

[0015] In one embodiment of the present application, the fixing member is disposed at an end of the supporting member away from the sleeve, so as to press the supporting member toward the sleeve.

[0016] In one embodiment of the present application, the fixing column is provided with a limiting groove, the limiting groove is located at an end of the supporting member away from the sleeve, and the fixing member is inserted into the limiting groove.

[0017] In one embodiment of the present application, the limiting groove is a through groove, and the axial direction of the limiting groove forms an angle with the axial direction of the fixing column.

[0018] In one embodiment of the present application, the fixing member is a fixing pin or a clip.

[0019] In one embodiment of the present application, the support member is sleeved on the fixing column, one end of the support member abuts against the heating tube, and the other end abuts against the fixing member.

[0020] In one embodiment of the present application, the support member is a sheet-like structure; the support member includes:

[0021] A mounting portion, mounted on the fixing column; and

[0022] A supporting portion connected to the mounting portion and extending in a direction away from the fixing column to cooperate with the heating tube;

[0023] The fixing member is held against an end of the mounting portion and / or the supporting portion away from the heating tube.

[0024] In one embodiment of the present application, the portion of the heating tube extending out of the flange mounting seat includes two wiring terminals arranged at an angle, and the supporting portion is located between the two wiring terminals and presses the two wiring terminals toward the sleeve.

[0025] In an embodiment of the present application, the width of the support portion is gradually reduced from the mounting portion toward a direction away from the fixing column.

[0026] To achieve the above objectives, the present application also provides an electric water heater, comprising an inner tank and the above heating assembly, wherein the sleeve of the heating assembly extends into the inner tank, and the flange mounting seat of the heating assembly is fixed to the tank opening of the inner tank.

[0027] In the heating assembly of the technical solution of the utility model, the heating tube is arranged in the sleeve assembly and partially extends out of the open end of the sleeve assembly. By arranging a support at the open end of the sleeve assembly and fixing it with a fixing member that is detachably connected to the sleeve assembly, the support member can support and limit the portion of the heating tube that extends out of the sleeve assembly, so as to achieve the fixed installation function of the heating tube. In this embodiment, the fixing member is detachably connected to the sleeve assembly, so that the heating tube can be disassembled and assembled by only plugging, unplugging, clamping, etc., which simplifies the operation difficulty and improves the disassembly and assembly efficiency of the heating tube compared to the method of tightening the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of an embodiment of a sleeve assembly in an embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the matching structure of the sleeve assembly, the support member and the fixing member in the embodiment of the utility model;

[0031] Figure 3 for Figure 2 Bottom view of the embodiment;

[0032] Figure 4 for Figure 3 A schematic diagram of a matching structure equipped with a heating tube in the embodiment;

[0033] Figure 5 This is a structural schematic diagram of an embodiment of an electric heater provided by the utility model.

[0034] Description of Figure Numbers:

[0035] Label name Label name 100 Heating components 3 Support 1 Casing components 31 Installation Department 11 casing 32 Support 12 Flange Mount 4 Fixings 13 Fixed column 200 Liner 131 Limit slot 201 Bile 2 Heating tube 310 Water inlet pipe 21 Terminals 320 Outlet pipe

[0036] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] A heating assembly such as a dry heater generally has a heating tube and a sleeve, wherein the sleeve is arranged inside the inner tank, and the heating tube is placed in the sleeve. When the heating tube is working, the heating tube is energized to convert electrical energy into heat energy, and the heat is exchanged with the water in the inner tank through the sleeve, thereby heating the water in the inner tank.

[0041] However, the heating tube in the related art is fixed in the sleeve with a nut structure. When installing the heating tube, it is necessary to first install the heating tube into the sleeve, adjust the angle of the heating tube, install the support sheet on the stud, and then fix the nut on the stud; when the heating tube needs to be disassembled, the nut needs to be loosened and removed, the support sheet needs to be removed, and then the heating tube needs to be taken out. During this disassembly process, the space available for tightening and removing the nut is small, which is inconvenient to operate and inefficient.

[0042] Based on this, the utility model proposes a heating assembly 100, which is intended to disassemble and assemble the heating tube 2 without tightening the nut, thereby simplifying the operation difficulty and improving the disassembly and assembly efficiency of the heating tube. The structure of the heating assembly 100 is described below in the form of an embodiment.

[0043] See also Figures 1 to 4 In the embodiment of the utility model, the heating component 100 includes a sleeve component 1, a heating tube 2, a support member 3 and a fixing member 4.

[0044] One end of the sleeve assembly 1 is closed and the other end is open; the heating tube 2 is arranged in the sleeve assembly 1 and partially extends out of the open end of the sleeve assembly 1; the support member 3 is arranged at the open end of the sleeve assembly 1 and supports the portion of the heating tube 2 extending out of the sleeve assembly 1; the fixing member 4 is detachably connected to the sleeve assembly 1 to fix the support member 3.

[0045] In this embodiment, one end of the sleeve assembly 1 is closed and the other end is open. The closed end is used to extend into the inner tank of the water heater, and the open end is used for the heating tube 2 to be inserted into the sleeve assembly 1. The sleeve assembly 1 can protect the heating tube 2 and prevent the heating tube 2 from directly contacting the water in the inner tank of the water heater. The heating tube 2 partially extends out of the open end of the sleeve assembly 1 to be electrically connected to the power supply outside the sleeve assembly 1 to ensure the normal operation of the heating tube 2. By arranging a support member 3 at the open end of the sleeve assembly 1, the support member 3 can support and limit the portion of the heating tube 2 extending out of the sleeve assembly 1, and the support member 3 is fixed by a fixing member 4 that is detachably connected to the sleeve assembly 1, so that the fixed installation function of the heating tube 2 can be realized.

[0046] It should be noted that the fixing member 4 of this embodiment is detachably connected to the sleeve assembly 1. When the heating tube 2 needs to be disassembled, the support member 3 can be fixed or removed by directly connecting or disconnecting the fixing member 4 from the sleeve assembly 1, thereby more quickly disassembling the heating tube 2. Compared with the operation of tightening the nut in the related art, the detachable connection method of this embodiment is simpler and faster, and the disassembly efficiency of the heating tube 2 is higher.

[0047] It is understandable that the clamping structure of the fixing member 4 and the sleeve assembly 1 can be determined according to the actual situation, for example, it can be an elastic clamping matching structure, or a matching structure of a fixing pin and a socket, or it can also be a buckle structure, or some other clamping structures, etc. Its specific clamping structure may not be limited here, as long as it can ensure that the fixing member 4 and the sleeve assembly 1 are easy to clamp or disengage. In actual application, the specific structure of the fixing member 4 can also be determined according to the actual clamping structure of the fixing member 4 and the sleeve assembly 1. For example, when the clamping structure is an elastic clamping matching structure, the fixing member 4 can be a clamping structure; when the clamping structure is a matching structure of a fixing pin and a socket, the fixing member 4 can be a fixing pin structure; when the clamping structure is a buckle structure, the fixing member 4 can be a buckle member or a buckle groove member, etc. The specific structure of the fixing member 4 may not be limited here.

[0048] The specific structure of the support member 3 can also be determined according to actual conditions, such as the support member 3 can be a block, strip, sheet or other shaped structure. The support member 3 is fixed by the fixing member 4 to support and fix the heating tube 2. It can be understood that the support member 3 can be a supporting structure that pushes the heating tube 2 toward the sleeve assembly 1. At this time, the support member 3 can be located between the heating tube 2 and the fixing member 4. The fixing member 4 can push the support member 3 toward the heating tube 2 to press the heating tube 2; or, the support member 3 can also be a clamping structure that clamps and fixes the part of the heating tube 2 that extends out of the sleeve assembly 1. At this time, the fixing member 4 can be located at the bottom or side of the support member 3, etc., as long as the support member 3 can be fixed. The specific structure of the support member 3 is not limited here.

[0049] In the heating assembly 1 of the technical solution of the utility model, the heating tube 2 is arranged in the sleeve assembly 1 and partially extends out of the open end of the sleeve assembly 1. By arranging a support member 3 at the open end of the sleeve assembly 1 and fixing it through a fixing member 4 that is detachably connected to the sleeve assembly 1, the support member 3 can support and limit the portion of the heating tube 2 that extends out of the sleeve assembly 1, so as to achieve the fixed installation function of the heating tube 2. In this embodiment, the fixing member 4 is detachably connected to the sleeve assembly 1, so that the heating tube 2 can be disassembled and assembled by only plugging and unplugging, clamping, etc., which simplifies the operation difficulty and improves the disassembly and assembly efficiency of the heating tube 2 compared to the method of tightening the nut.

[0050] In one embodiment of the present application, Figures 1 to 4 The sleeve assembly 1 includes a sleeve 11, a flange mounting seat 12 and a fixing column 13. One end of the sleeve 11 is closed and the other end is open; the flange mounting seat 12 is connected to the open end of the sleeve 11 and is open at a position corresponding to the sleeve 11; the heating tube 2 is arranged in the sleeve 11 and extends out of the flange mounting seat 12; the fixing column 13 is arranged at the end of the flange mounting seat 12 away from the sleeve 11; the support member 3 is installed on the fixing column 13 and presses against the heating tube 2 in the direction of the sleeve 11; the fixing member 4 is detachably connected to the fixing column 13 to fix the support member 3 to the fixing column 13.

[0051] This embodiment illustrates the structure of the sleeve assembly 1, where the sleeve 11 is mounted on one end of the flange mounting seat 12. Optionally, the sleeve 11 and the flange mounting seat 12 may be integrally formed or welded as separate structures. When applied to a water heater, the flange mounting seat 12 is fixed on the inner tank, and the sleeve 11 is located inside the inner tank. The position of the flange mounting seat 12 corresponding to the sleeve 11 is open, so that the heating tube 2 can extend from the outside of the flange mounting seat 12 into the inside of the sleeve 11, and in order to facilitate electrical conduction with the outside, the heating tube 2 partially extends out of the flange mounting seat 12.

[0052] A fixing column 13 is provided at one end of the flange mounting seat 12 away from the sleeve 11. It can be understood that the fixing column 13 plays the role of installing the support member 3 and the fixing member 4. In order to facilitate the installation of the support member 3 and the fixing member 4, the fixing column 13 can be set as a column structure extending from the end surface of the flange mounting seat 12 away from the sleeve 11, so as to provide more installation space for the support member 3 and the fixing member 4. Optionally, the fixing column 13 can be welded, screwed or integrally formed with the flange mounting seat 12.

[0053] It can be understood that the support member 3 is installed on the fixed column 13. The support member 3 can be sleeved on the fixed column 13, or the support member 3 can be clamped on the fixed column 13, or the support member 3 can be screwed on the fixed column 13, or some other installation methods can be used.

[0054] It can be understood that the fixing member 4 and the fixing column 13 can be detachably connected, and the fixing member 4 and the fixing column 13 can be connected by plug-in fit, clamping fit, or some other snap-fitting manner.

[0055] In this embodiment, a fixing column 13 is provided at the end of the flange mounting seat 12 away from the sleeve 11, and the support member 3 is fixed to the fixing column 13 through the fixing member 4, so that the support member 3 can push and fix the heating tube 2 toward the sleeve 11. Such a setting further simplifies the installation structure and improves the disassembly and assembly efficiency.

[0056] In one embodiment of the present application, Figures 2 to 4 The fixing member 4 is disposed at one end of the supporting member 3 away from the sleeve 11 , so as to press against the supporting member 3 in the direction of the sleeve 11 .

[0057] In this embodiment, by arranging the fixing member 4 at the end of the support member 3 away from the sleeve 11, it can be understood that the support member 3 is located between the heating tube 2 and the fixing member 4. Then, when the fixing member 4 and the fixing column 13 are assembled, a resisting force can be generated on the support member 3 toward the sleeve 11, thereby driving the support member 3 to press the heating tube 2 toward the sleeve 11, thereby realizing the fixing function of the heating tube 2.

[0058] In one embodiment of the present application, Figures 2 to 4 The fixing column 13 is provided with a limiting groove 131 , the limiting groove 131 is located at one end of the supporting member 3 away from the sleeve 11 , and the fixing member 4 is inserted into the limiting groove 131 .

[0059] This embodiment illustrates the matching structure of the fixing member 4 and the fixing column 13. The fixing column 13 is provided with a limiting groove 131 at the end of the support member 3 away from the sleeve 11. By inserting the fixing member 4 into the limiting groove 131 to fix with the fixing column 13, the fixing member 4 can abut against the end of the support member 3 away from the heating tube 2, so that the support member 3 abuts and fixes the heating tube 2 in the direction of the sleeve 11. With this design, the function of installing or removing the heating tube 2 can be realized by only inserting or pulling out the fixing member 4 from the limiting groove 131, which further simplifies the operation and improves the convenience of assembly and disassembly.

[0060] In actual application, the limiting groove 131 can be a sunken groove structure or a through groove structure arranged on the outer peripheral wall of the fixing column 13. When the limiting groove 131 is a sunken groove structure, the fixing member 4 can be set as a clamping structure, which is clamped in the sunken groove structure to limit the support member 3. Alternatively, when the limiting groove 131 is a through groove structure, the fixing member 4 can be set as a fixing pin structure or a clamping structure, which is inserted in the through groove structure to limit the support member 3. It should be noted that when the limiting groove 131 is a through groove structure, in order to ensure the supporting and limiting function of the fixing member 4 on the support member 3, the axial direction of the limiting groove 131 is at an angle with the axial direction of the fixing column 13 to prevent the fixing member 4 from escaping from the limiting groove 131.

[0061] In order to make the support and limit function of the fixing member 4 on the support member 3 better, in one embodiment, the limit groove 131 is a through groove, and the axial direction of the limit groove 131 is perpendicular to the axial direction of the fixing column 13. In this way, the insertion direction of the fixing member 4 is perpendicular to the axial direction of the fixing column 13, so that the support force of the fixing member 4 on the support member 3 can be consistent with the direction in which the heating tube 2 is inserted into the sleeve 11, thereby achieving better support reliability.

[0062] In one embodiment of the present application, Figures 2 to 4 The support member 3 is sleeved on the fixing column 13 , one end of the support member 3 abuts against the heating tube 2 , and the other end abuts against the fixing member 4 .

[0063] By sleeve-arranging the support member 3 on the fixing column 13, the connection between the support member 3 and the fixing column 13 is made more reliable, and the support member 3 is prevented from falling off. In this embodiment, the support member 3 is located between the heating tube 2 and the fixing member 4, and the fixing member 4 cooperates with the fixing column 13. The fixing member 4 can generate a resisting force on the support member 3 toward the sleeve 11, thereby causing the support member 3 to press the heating tube 2 toward the sleeve 11.

[0064] It can be understood that when the support member 3 is mounted on the fixing column 13, the support member 3 can move along the entire length of the fixing column 13, and at this time, the support member 3 is pressed by the fixing member 4 to abut against the heating tube 2. In some other embodiments, the outer wall of the fixing column 13 is provided with a limit step fixing pin, and the end of the support member 3 away from the fixing member 4 abuts against the limit step fixing pin. At this time, the support member 3 is clamped and fixed by the fixing member 4 and the limit step fixing pin, and the support member 3 is used to support the heating tube 2 to prevent the heating tube 2 from falling out of the sleeve 11.

[0065] As an example, the support member 3 is a sheet structure; the support member 3 includes a mounting portion 31 and a supporting portion 32, the mounting portion 31 is mounted on the fixing column 13; the supporting portion 32 is connected to the mounting portion 31 and extends in a direction away from the fixing column 13 to cooperate with the heating tube 2; the fixing member 4 is supported on one end of the mounting portion 31 and / or the supporting portion 32 away from the heating tube 2.

[0066] In this embodiment, the mounting portion 31 is used to be mounted with the fixing column 13, and the supporting portion 32 is used to support the limited heating tube 2. The fixing member 4 is abutted against the end of the mounting portion 31 and / or the supporting portion 32 away from the heating tube 2. It can be understood that the fixing member 4 only abuts against the matching mounting portion 31, or only abuts against the matching supporting portion 32, or both the mounting portion 31 and the supporting portion 32. Optionally, the supporting member 3 is an integrated structure. In order to ensure the support reliability, the supporting member 3 can be made of a metal material with higher strength.

[0067] In this embodiment, by configuring the support member 3 as a sheet-like structure, the occupied space can be reduced, thereby providing a larger disassembly and assembly operation space.

[0068] In one embodiment of the present application, the portion of the heating tube 2 extending out of the flange mounting seat 12 includes two wiring terminals 21 arranged at an angle, and the support portion 32 is located between the two wiring terminals 21 and presses the two wiring terminals 21 toward the sleeve 11 .

[0069] It can be understood that the two terminals 21 of the heating tube 2 extending out of the flange mounting seat 12 are respectively the positive terminal and the negative terminal of the heating tube 2. The two terminals 21 are arranged at an angle to form a "V"-shaped structure, so that the two terminals 21 have sufficient creepage distance to prevent short circuit between the two. By locating the support portion 32 between the two terminals 21 and pressing the two terminals 21 toward the sleeve 11, the support force of the support portion 32 on the heating tube 2 is more balanced, which can prevent the heating tube 2 from tilting and improve the installation reliability of the heating tube 2.

[0070] Furthermore, the width of the support portion 32 is gradually reduced from the mounting portion 31 toward a direction away from the fixing column 13. This arrangement makes it easier to mount the support portion 32 between the two wiring terminals 21, further improving assembly efficiency.

[0071] The utility model also provides an electric water heater, such as Figure 5 The electric water heater comprises an inner tank 200 and a heating assembly 100. The specific structure of the heating assembly 100 is referred to the above embodiment. Since the electric water heater adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the sleeve 11 of the heating assembly 100 extends into the inner tank 200, and the flange mounting seat 12 of the heating assembly 100 is fixed to the tank opening 201 of the inner tank 200.

[0072] In this embodiment, the inner tank 200 has a water inlet pipe 310 and a water outlet pipe 320. The water inlet pipe 310 is used to bring cold water into the inner tank 200, and the water outlet pipe 320 is used to discharge hot water from the inner tank 200. The inner tank 200 is provided with a tank opening 201. By fixing the flange mounting seat 12 to the tank opening 201, the function of fixing the sleeve 11 inside the inner tank 200 is realized. The heating tube 2 is installed in the sleeve 11, and the water in the inner tank 200 is heated by the sleeve 11. When the heating tube 2 fails, there is no need to remove the flange mounting seat 12 or drain the water in the inner tank 200. The heating tube 2 can be directly removed, and the disassembly and installation are very simple.

[0073] In practical application, the inner tank 200 of the electric water heater can be a horizontal inner tank or a vertical inner tank. The tank opening 201 can be arranged at the bottom, side or top of the inner tank 200.

[0074] In one embodiment of the present application, the opening 201 is provided at the bottom of the inner tank 200. With such a configuration, the heating component 100 is inserted into the inner tank 200 from bottom to top through the opening 201. At this time, the heating component 100 is in the lower area of ​​the inner cavity of the inner tank 200, which can be more convenient for heating cold water located at a low position and improve the heating efficiency. In this embodiment, the heating tube 2 is inserted into the sleeve 11 from bottom to top, and the heating tube 2 is supported and fixed by the cooperation of the support member 3 and the fixing member 4 at the bottom. By engaging the fixing member 4 with the sleeve assembly 1 by means of a snap fit, the operation of this embodiment is simpler and more efficient than the solution of disassembly and assembly by screwing a nut in the related art.

[0075] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heating component, characterized in that: include: a sleeve assembly having one end closed and the other end open; A heating tube is disposed in the sleeve assembly and partially extends out of an open end of the sleeve assembly; a support member, disposed at an open end of the sleeve assembly, and supporting and limiting a portion of the heating tube extending out of the sleeve assembly; and A fixing member is detachably connected to the sleeve assembly to fix the supporting member.

2. The heating assembly according to claim 1, characterized in that The sleeve assembly comprises: a cannula, which is closed at one end and open at the other; a flange mounting seat connected to an open end of the sleeve and opened corresponding to the position of the sleeve; the heating pipe is arranged in the sleeve and extends out of the flange mounting seat; and A fixing column, arranged at one end of the flange mounting seat away from the sleeve; The support member is installed on the fixing column and presses against the heating tube in the direction of the sleeve; the fixing member is detachably connected with the fixing column to fix the support member on the fixing column.

3. The heating assembly according to claim 2, characterized in that The fixing member is arranged at one end of the supporting member away from the sleeve, so as to press the supporting member toward the sleeve.

4. The heating assembly according to claim 3, characterized in that The fixing column is provided with a limiting groove, the limiting groove is located at an end of the supporting member away from the sleeve, and the fixing member is inserted into the limiting groove.

5. The heating assembly according to claim 4, characterized in that The limiting groove is a through groove, and the axial direction of the limiting groove forms an angle with the axial direction of the fixing column.

6. The heating assembly according to claim 4, characterized in that The fixing member is a fixing pin or a clamp.

7. The heating assembly according to any one of claims 3 to 6, characterized in that The support member is sleeved on the fixing column, one end of the support member abuts against the heating tube, and the other end abuts against the fixing member.

8. The heating assembly according to claim 7, characterized in that The support member is a sheet-like structure; the support member comprises: A mounting portion, mounted on the fixing column; and A supporting portion connected to the mounting portion and extending in a direction away from the fixing column to cooperate with the heating tube; The fixing member is held against an end of the mounting portion and / or the supporting portion away from the heating tube.

9. The heating assembly according to claim 8, characterized in that The portion of the heating tube extending out of the flange mounting seat includes two wiring terminals arranged at an angle, and the supporting portion is located between the two wiring terminals and presses the two wiring terminals toward the sleeve.

10. The heating assembly according to claim 9, characterized in that The width of the support portion is gradually reduced from the mounting portion toward a direction away from the fixing column.

11. An electric water heater, characterized in that: It comprises an inner tank and a heating component as claimed in any one of claims 1 to 10, wherein the sleeve of the heating component extends into the inner tank, and the flange mounting seat of the heating component is fixed to the tank opening of the inner tank.

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