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 and a fixing piece, one end of the sleeve assembly is closed, and the other end of the sleeve assembly is open; the open end of the sleeve assembly is provided with a fixing column. The heating pipe is arranged in the sleeve assembly and partially extends out of the open end of the sleeve assembly; a first flange is fixedly arranged at the part, extending out of the sleeve assembly, of the heating pipe, and is assembled on the fixed column; the fixing piece is detachably fixed to the fixing column and used for supporting and fixing the first flange so as to fix the heating pipe. According to the technical scheme, the installation structure of the heating pipe is simplified, the disassembly and assembly steps are saved, 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] When assembling the heating tube in the related art, it is necessary to first install the support sheet on the stud, then move the support sheet to the support position of the heating tube, and then fix the support sheet with a nut to fix the heating tube; when disassembling, it is necessary to loosen and remove the nut, then remove the support sheet, and then take out the heating tube. There are problems such as troublesome disassembly and assembly of the heating tube 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 includes:

[0006] A sleeve assembly, one end of which is closed and the other end is open; a fixing column is provided at the open end of the sleeve assembly;

[0007] a heating pipe, which is arranged in the sleeve assembly and partially extends out of an open end of the sleeve assembly; a first flange is fixedly provided at the portion of the heating pipe extending out of the sleeve assembly, and the first flange is assembled on the fixing column; and

[0008] A fixing member is detachably fixed to the fixing column and is used to support and fix the first flange to fix the heating tube.

[0009] In one embodiment of the present application, the first flange is provided with a mounting opening, and the first flange is sleeved on the outside of the fixing column through the mounting opening;

[0010] The fixing member is arranged on a side of the first flange away from the sleeve assembly, and presses against the first flange in the direction of the sleeve assembly.

[0011] In one embodiment of the present application, the installation opening is a notch or a through hole.

[0012] In one embodiment of the present application, the first flange is interference fit on the outside of the heating tube.

[0013] In one embodiment of the present application, the fixing column is a stud, the fixing member is a nut, and the fixing member is threadedly connected to the fixing column.

[0014] In one embodiment of the present application, the portion of the heating tube extending out of the sleeve assembly includes two wiring terminals arranged at an angle, and the fixing column is arranged relative to the gap between the two wiring terminals.

[0015] In one embodiment of the present application, the heating tube comprises:

[0016] a tube body having a first tube end and a second tube end opposite to each other, wherein the first tube end is built into the sleeve assembly and the second tube end is located outside the sleeve assembly; and

[0017] Two heating elements are arranged side by side in the tube body, the two heating elements are electrically connected to the first tube end, and the two heating elements respectively have the connection terminals extending out of the second tube end;

[0018] The first flange is installed at a position of the pipe body close to the second pipe end.

[0019] In one embodiment of the present application, the heating tube comprises a tube body folded in half and a heating element disposed in the tube body, two tube ends of the tube body are located at the same end of the heating tube, and two ends of the heating element extend out of the two tube ends to form the connection terminals;

[0020] One end of the heating tube away from the two tube ends is built into the sleeve assembly, and the two tube ends are both located outside the sleeve assembly;

[0021] The first flange is installed at a position of the heating pipe close to the two pipe ends.

[0022] In one embodiment of the present application, the sleeve assembly includes:

[0023] a sleeve having one end closed and the other end open; and

[0024] The second flange is connected to the open end of the sleeve and is open at a position corresponding to the sleeve; the heating tube is arranged in the sleeve and extends out of the second flange; the fixing column is arranged at the end of the second flange away from the sleeve.

[0025] 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 second flange of the heating assembly is fixed to the tank opening of the inner tank.

[0026] In the heating assembly of the technical solution of the utility model, a fixing column is arranged at the open end of the sleeve assembly, and a first flange is fixedly arranged on the heating tube, so that when the heating tube is inserted into the sleeve assembly, it can drive the first flange to move to assemble with the fixing column at the same time, and then the first flange is fixedly limited by the fixed connection between the fixing member and the fixing column, thereby realizing the fixed installation function of the heating tube; in addition, when disassembling, the heating tube can be taken out of the sleeve assembly by simply removing the fixing member from the fixing column, thereby realizing the disassembly function of the heating tube. Therefore, whether it is the installation or disassembly of the heating tube, compared with the method in the related art that requires additional disassembly and position adjustment of the support sheet, this embodiment simplifies the installation structure, saves the disassembly steps, and improves the disassembly efficiency of the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 It is a structural schematic diagram of an embodiment of a sleeve assembly in an embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of the assembly structure of the sleeve assembly, the fixing column and the fixing member in the embodiment of the utility model;

[0030] Figure 3 This is a schematic structural diagram of an embodiment of a heating component of the utility model;

[0031] Figure 4 for Figure 3 Bottom view of the embodiment;

[0032] Figure 5 for Figure 3 A schematic diagram of the structure of the heating tube in the embodiment;

[0033] Figure 6 This is a structural schematic diagram of another embodiment of the heating component of the utility model;

[0034] Figure 7 for Figure 6 Bottom view of the embodiment;

[0035] Figure 8 for Figure 6 A schematic diagram of the structure of the heating tube in the embodiment;

[0036] Fig. 9It is a structural schematic diagram of an embodiment of the electric water heater of the utility model.

[0037] Description of Figure Numbers:

[0038]

[0039]

[0040] 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

[0041] 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.

[0042] 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 under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0044] 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 suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0045] A heating assembly such as a dry 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 to heat the water in the inner tank.

[0046] However, when assembling the heating tube in the related art, it is necessary to first install the heating tube into the sleeve, adjust the angle of the heating tube, then install the support sheet on the stud and move it to the support position of the heating tube, and then fix the support sheet with a nut to fix the heating tube; when disassembling, it is necessary to loosen and remove the nut, then remove the support sheet, and then take out the heating tube. In this disassembly and assembly process, not only the nut needs to be tightened, but also the support sheet needs to be disassembled and assembled and the position of the support sheet needs to be adjusted, which results in troublesome disassembly and assembly of the heating tube and low disassembly and assembly efficiency.

[0047] Based on this, the utility model proposes a heating assembly 100, which aims to reduce the installation steps, simplify the installation operation, and improve the efficiency of disassembly and assembly of the heating tube by setting a first flange 3 on the heating tube 2. When the heating tube 2 is inserted into the sleeve, the first flange 3 is driven to be assembled on the fixing column 13, without the need to install an additional support sheet. The structure of the heating assembly 100 is described below in the form of an embodiment.

[0048] See also Figures 1 to 6 In the embodiment of the utility model, the heating component 100 includes a sleeve component 1, a heating tube 2 and a fixing member 4.

[0049] One end of the sleeve assembly 1 is closed and the other end is open; a fixing column 13 is provided at the open end of the sleeve assembly 1; the heating tube 2 is arranged in the sleeve assembly 1 and partially extends out of the open end of the sleeve assembly 1; a first flange 3 is fixedly provided at the portion where the heating tube 2 extends out of the sleeve assembly 1, and the first flange 3 is assembled on the fixing column 13; the fixing piece 4 and the fixing column 13 are detachably fixed to support and fix the first flange 3 to fix the heating tube 2.

[0050] 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.

[0051] A fixing column 13 is provided at the open end of the sleeve assembly 1, and a first flange 3 is fixedly provided at the portion of the heating tube 2 located outside the sleeve assembly 1. When the heating tube 2 is inserted into the sleeve assembly 1, the first flange 3 is driven to move together to assemble with the fixing column 13, and then the fixing member 4 is installed on the fixing column 13 to fix and limit the first flange 3, thereby realizing the fixing function of the heating tube 2. In this way, the steps of installing and adjusting the position of the support sheet in the related technology are omitted, and the assembly efficiency is improved. Similarly, when disassembling the heating tube 2, it is only necessary to remove the fixing member 4 from the fixing column 13, and the heating tube 2 can be taken out of the sleeve assembly 1 to realize the disassembly of the heating tube 2. In this way, the steps of disassembling the support sheet in the related technology are omitted, and the disassembly efficiency is improved.

[0052] It should be noted that the present embodiment does not limit the specific structure of the detachable fixing method of the fixing member 4 and the fixing column 13, for example, it can be a screw fixation, a clamp fixation or other connection methods, as long as the disassembly and fixing functions of the two can be achieved. When the fixing member 4 is assembled on the fixing column 13, the first flange 3 is fixed and limited. It can be understood that the fixing member 4 can push the first flange 3 toward the direction of the sleeve assembly 1; or the fixing member 4 can lock and fix the first flange 3 and the fixing column 13, etc.

[0053] In practical applications, the fixing column 13 can be configured as a column structure extending from the end surface of the sleeve assembly 1 toward away from the sleeve assembly 1, or can also be a column structure extending in a vertical direction along the axial direction of the sleeve assembly 1, etc. In this embodiment, considering the convenience of installation, the fixing column 13 is configured as a column structure extending along the axial direction of the sleeve assembly 1, which can provide more installation space for the first flange 3 and the fixing member 4. Optionally, the fixing column 13 can be welded, screwed, or integrally formed with the sleeve assembly 1.

[0054] In practical applications, the assembly method of the first flange 3 and the fixing column 13 can be determined according to the actual situation, for example, it can be sleeve assembly, clamping assembly or plug assembly, etc. The fixing method of the first flange 3 and the heating tube 2 can also be determined according to the actual situation, for example, it can be interference fixing, welding fixing or clamping fixing, etc.

[0055] In summary, in the heating assembly 1 of the technical solution of the utility model, by setting a fixing column 13 at the open end of the sleeve assembly 1, the first flange 3 is fixedly set on the heating tube 2, so that when the heating tube 2 is inserted into the sleeve assembly 1, it can drive the first flange 3 to move to assemble with the fixing column 13 at the same time, and then the first flange 3 is fixedly limited by the fixed connection between the fixing member 4 and the fixing column 13, thereby realizing the fixed installation function of the heating tube 2; in addition, when disassembling, it is only necessary to remove the fixing member 4 from the fixing column 13, and the heating tube 2 can be taken out of the sleeve assembly 1, thereby realizing the disassembly function of the heating tube 2. Therefore, in this embodiment, whether it is the installation or disassembly of the heating tube 2, compared with the method in the related art that requires additional disassembly and position adjustment of the support sheet, the installation structure is simplified, the disassembly steps are saved, and the disassembly efficiency of the heating tube is improved.

[0056] In one embodiment of the present application, Figure 3 , Figure 4 , Figure 6 as well as Figure 7 The first flange 3 is provided with an installation opening 301, and the first flange 3 is sleeved on the outside of the fixing column 13 through the installation opening 301; the fixing member 4 is arranged on the side of the first flange 3 away from the sleeve assembly 1, and presses against the first flange 3 in the direction of the sleeve assembly 1.

[0057] In this embodiment, by setting the installation port 301 on the first flange 3, when the heating tube 2 is inserted into the sleeve assembly 1, it can drive the first flange 3 to move in the axial direction of the sleeve assembly 1, so that the installation port 301 is sleeved on the outside of the fixing column 13; then the fixing member 4 is installed on the fixing column 13, and the fixing member 4 can be abutted against the side of the first flange 3 away from the sleeve assembly 1, and press against the first flange 3 in the direction of the sleeve assembly 1 until the heating tube 2 is fixed to the sleeve assembly 1.

[0058] Optionally, the first flange 3 and the fixing column 13 may be in an axial hole fit or a snap fit. It is understandable that when the first flange 3 and the fixing column 13 are in an axial hole fit, the installation opening 301 may be a through hole structure; when the first flange 3 and the fixing column 13 are in a snap fit, the installation opening 301 may be a notch structure. The specific assembly method of the two is not limited here.

[0059] In one embodiment of the present application, Figure 3 , Figure 4 , Figure 6 as well as Figure 7 The first flange 3 is interference fit on the outside of the heating tube 2 .

[0060] It can be understood that the heating tube 2 is partially inserted into the sleeve assembly 1. In order to avoid short circuit, the outer surface of the heating tube 2 is set as an insulating surface. Therefore, the first flange 3 is interference-fitted onto the outside of the heating tube 2, and the assembly process is simpler.

[0061] Optionally, the first flange 3 is fixed to the heating tube 2 by riveting.

[0062] In one embodiment of the present application, Figure 3 , Figure 4 , Figure 6 as well as Figure 7 The fixing column 13 is a stud, the fixing member 4 is a nut, and the fixing member 4 is screwed to the fixing column 13 .

[0063] It can be understood that the heating tube 2 in the related art uses a nut fixing structure to fix the support plate. In this embodiment, by using the fixing column 13 as a stud and the fixing piece 4 as a nut, the structure of the fixing column 13 and the fixing piece 4 in the related art can be directly adopted without the need to specifically design and manufacture the structure of the fixing column 13 and the fixing piece 4. Therefore, this embodiment can simplify the manufacturing process and improve production efficiency.

[0064] In actual application, a gasket 5 can also be set on the fixing column 13. After the gasket 5 is first put on the stud, the nut is installed on the stud for tightening. The gasket 5 can balance the pressure, making the pressure against the first flange 3 more balanced.

[0065] In one embodiment of the present application, Figure 3 , Figure 4 , Figure 6 as well as Figure 7 The portion of the heating tube 2 extending out of the sleeve assembly 1 includes two wiring terminals 221 arranged at an angle, and the fixing column 13 is arranged opposite to the gap between the two wiring terminals 221 .

[0066] It can be understood that the two terminals 221 of the heating tube 2 extending out of the sleeve assembly 1 are respectively the positive terminal and the negative terminal of the heating tube 2. The two terminals 221 are arranged at an angle to form a "V"-shaped structure, so that the two terminals 221 have sufficient creepage distance to prevent short circuit between the two.

[0067] In this embodiment, by relatively arranging the gap between the fixing column 13 and the two terminal blocks 221, the arrangement of the two terminal blocks 221 will not interfere with the fixing column 13. At the same time, the first flange 3 is simultaneously assembled on the heating tube 2 and the fixing column 13, so that the force on the heating tube 2 is more balanced, which can prevent the heating tube 2 from tilting, thereby ensuring installation reliability and electrical safety.

[0068] Optionally, the fixing column 13 is located on the central axis of the center line of the two terminal ends 221 to further improve the force uniformity of the heating tube 2.

[0069] In practical applications, the specific structure of the heating tube 2 can be determined according to actual conditions.

[0070] For example, Figures 6 to 8 In one embodiment of the present application, the heating tube 2 includes a tube body 21 and two heating elements 22, the tube body 21 has a first tube end 211 and a second tube end 211 opposite to each other, the first tube end 211 is built into the sleeve assembly 1, and the second tube end 211 is located outside the sleeve assembly 1; the two heating elements 22 are arranged side by side in the tube body 21, the two heating elements 22 are electrically connected to the first tube end 211, and the two heating elements 22 respectively have the wiring terminal 221 extending out of the second tube end 211; the first flange 3 is installed at a position of the tube body 21 close to the second tube end 211.

[0071] In this embodiment, the heating tube 2 is a straight tube structure. The tube body 21 serves to install the heating element 22 and conduct the heat of the heating element 22 to the sleeve assembly 1. It can be understood that the tube body 21 and the heating element 22 are insulated, and the tube body 21 can be a metal tube or a non-metallic tube with good thermal conductivity. The tube body 21 itself can be an insulating material or a non-insulating material. When it is a non-insulating material, it can be isolated and insulated from the heating element 22 by filling the inside of the tube body 21 with insulating material. Two heating elements 22 are arranged side by side in the tube body 21. It can be understood that the two heating elements 22 are arranged in parallel at intervals in the tube body 21. The heating element 22 can be a structure that only includes a resistance wire with high heating efficiency. In this case, the heating element 22 is a resistance wire structure as a whole; or it can also include a resistance wire and other conductive structures. In this case, a lead rod structure or a wire structure can be respectively set at both ends of the resistance wire.

[0072] By electrically connecting the two heating elements 22 at the first tube end 211 of the tube body 21, the two heating elements 22 respectively have a terminal 221 extending from the second tube end 211, which is used to be electrically connected to the power supply outside the tube body 21, so as to realize the normal heating function of the two heating elements 22 in the tube body 21. The two terminals 221 of the heating element 22 are extended from the same tube end 211 of the tube body 21, so that there is no need to perform a hydraulic operation on the tube body 21, which simplifies the processing technology and reduces the mechanical damage to the tube body 21 and the heating element 22. At the same time, it is convenient to control the outer diameter of the tube body 21, with high processing accuracy, and greatly reduces the gap between the heating tube 2 and the inner wall of the sleeve assembly 1, which can ensure that the heat of the heating tube 2 is transferred to the sleeve and water for heat exchange in time, thereby ensuring the life of the heating tube 2.

[0073] It should be noted that the two terminals 221 extend from the same tube end 211 of the tube body 21, and the two terminals 221 extend at an angle in a direction away from the tube body 21. If a supporting sheet is provided between the two terminals 221 in the related art, sufficient creepage distance may not be guaranteed, which may easily cause a short circuit fault. In this embodiment, the first flange 3 is installed at a position close to the second tube end 211 of the tube body 21, and the heating tube 2 is installed through the cooperation of the first flange 3, the fixing column 13 and the fixing member 4, without affecting the creepage distance of the two terminals 221, thereby ensuring the reliability of the structural assembly and the safety of electricity use.

[0074] For example, Figures 3 to 5 In another embodiment of the present application, the heating tube 2 includes a tube body 21 folded in half and a heating element 22 arranged in the tube body 21, the two tube ends 211 of the tube body 21 are both located at the same end of the heating tube 2, and the two ends of the heating element 22 respectively extend out of the two tube ends 211 to form the wiring terminals 221; one end of the heating tube 2 away from the two tube ends 211 is built into the sleeve assembly 1, and the two tube ends 211 are both located outside the sleeve assembly 1; the first flange 3 is installed on the heating tube 2 at a position close to the two tube ends 211.

[0075] In this embodiment, the heating tube 2 is a U-shaped tube structure. The material and function of the tube body 21 and the material and function of the heating element 22 can be consistent with the previous embodiment, and will not be repeated here. The difference between this embodiment and the previous embodiment is that there is one heating element 22 in the tube body 21, and the heating element 22 is provided with a terminal 221 at both ends 211 of the tube body 21. After the heating element 22 is assembled with the tube body 21, it is folded in half as a whole and formed by oil pressure, so that the two tube ends 211 are located at the same end of the heating tube 2. At this time, the two terminal 221 is also located at the same end of the heating tube 2, that is, the two terminal 221 is located outside the sleeve assembly 1, so as to facilitate electrical connection with an external power supply.

[0076] The first flange 3 is installed at a position close to the two tube ends 211 of the heating tube 2. It can be understood that the first flange 3 is sleeved on the outside of the two tube sections after the tube body 21 is folded in half. On the one hand, it can ensure the structural reliability of the heating tube 2 itself, and on the other hand, it can improve the installation reliability of the heating tube 2 and the sleeve assembly 1.

[0077] It can be seen from this that the installation structure of the heating tube 2 of the present application is not only applicable to the straight tube-shaped heating tube 2 but also to the U-shaped heating tube 2, and has higher versatility.

[0078] In one embodiment of the present application, Figures 1 to 3The sleeve assembly 1 includes a sleeve 11 and a second flange 12, one end of the sleeve 11 is closed and the other end is open; the second flange 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 second flange 12; the fixing column 13 is arranged at the end of the second flange 12 away from the sleeve 11.

[0079] This embodiment illustrates the structure of the sleeve assembly 1, where the sleeve 11 is installed at one end of the second flange 12. Optionally, the sleeve 11 and the second flange 12 may be integrally formed or welded together. When applied to a water heater, the second flange 12 is fixed to the inner tank, and the sleeve 11 is located inside the inner tank. The second flange 12 is open at a position corresponding to the sleeve 11, so that the heating tube 2 can extend from the outside of the second flange 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 second flange 12.

[0080] In order to facilitate the assembly of the first flange 3, the fixing column 13 can be set as a column structure extending from the end surface of the second flange 12 away from the sleeve 11, so that when the heating tube 2 is inserted, the first flange 3 can be driven to be sleeved on the fixing column 13. Optionally, the fixing column 13 can be fixed to the second flange 12 by welding, screwing or integrally formed.

[0081] The utility model also provides an electric water heater, such as Fig. 9 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 second flange 12 of the heating assembly 100 is fixed to the tank opening 201 of the inner tank 200.

[0082] 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 second flange 12 to the tank opening 201, the function of fixing the sleeve 11 inside the inner tank 200 is achieved. 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 second flange 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.

[0083] 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.

[0084] 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 assembly 100 is inserted into the inner tank 200 from bottom to top through the opening 201. At this time, the heating assembly 100 is located in the lower area of ​​the inner cavity of the inner tank 200, which can more conveniently heat the cold water located at a lower 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 first flange 3 at the bottom, the fixing column 13 and the fixing member 4.

[0085] The above description is only a preferred 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 inventive 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, one end of which is closed and the other end is open; a fixing column is provided at the open end of the sleeve assembly; A heating pipe is arranged in the sleeve assembly and partially extends out of an open end of the sleeve assembly; a first flange is fixedly provided at the portion of the heating pipe extending out of the sleeve assembly, and the first flange is assembled on the fixing column; as well as A fixing member is detachably fixed to the fixing column and is used to support and fix the first flange to fix the heating tube.

2. The heating assembly according to claim 1, characterized in that The first flange is provided with a mounting opening, and the first flange is sleeved on the outside of the fixing column through the mounting opening; The fixing member is arranged on a side of the first flange away from the sleeve assembly, and presses against the first flange in the direction of the sleeve assembly.

3. The heating assembly according to claim 2, characterized in that The installation opening is a notch or a through hole.

4. The heating assembly according to claim 2, characterized in that The first flange is interference-fitted onto the outside of the heating tube.

5. The heating assembly according to any one of claims 1 to 4, characterized in that The fixing column is a stud, the fixing piece is a nut, and the fixing piece is screwed to the fixing column.

6. The heating assembly according to any one of claims 1 to 4, characterized in that The portion of the heating tube extending out of the sleeve assembly includes two wiring terminals arranged at an angle, and the fixing column is arranged opposite to the gap between the two wiring terminals.

7. The heating assembly according to claim 6, characterized in that The heating tube comprises: a tube body having a first tube end and a second tube end opposite to each other, wherein the first tube end is built into the sleeve assembly and the second tube end is located outside the sleeve assembly; and Two heating elements are arranged side by side in the tube body, the two heating elements are electrically connected to the first tube end, and the two heating elements respectively have the wiring terminals extending out of the second tube end; The first flange is installed at a position of the pipe body close to the second pipe end.

8. The heating assembly according to claim 6, characterized in that The heating tube comprises a tube body folded in half and a heating element arranged in the tube body, the two ends of the tube body are located at the same end of the heating tube, and the two ends of the heating element extend out of the two tube ends to form the connection terminals; One end of the heating tube away from the two tube ends is built into the sleeve assembly, and the two tube ends are both located outside the sleeve assembly; The first flange is installed at a position of the heating pipe close to the two pipe ends.

9. The heating assembly according to any one of claims 1 to 4, characterized in that The sleeve assembly comprises: a sleeve having one end closed and the other end open; and The second flange is connected to the open end of the sleeve and is open at a position corresponding to the sleeve; the heating tube is arranged in the sleeve and extends out of the second flange; the fixing column is arranged at the end of the second flange away from the sleeve.

10. An electric water heater, characterized in that: It comprises an inner pot and a heating component as claimed in any one of claims 1 to 9, wherein the sleeve of the heating component extends into the inner pot, and the second flange of the heating component is fixed to the pot opening of the inner pot.

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