Electric heating assembly and electric water heater

By designing electric heating components in the electric water heater, using buffer parts and water outlet hole structures to reduce the flow rate of cold water and change the flow direction, the problem of rapid mixing of cold water in the electric water heater is solved, and the effect of improving the output rate of hot water and energy saving is achieved.

CN222895304UActive Publication Date: 2025-05-23GUANGDONG LIZI TECH CO LTD +1
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Patent Information

Application Number
CN202421703917.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-05-23
Estimated Expiration
2034-07-17

AI Technical Summary

Technical Problem

In existing electric water heaters, cold water flows into the inner vessel quickly and mixes with hot water quickly, resulting in a significant reduction in the hot water temperature and a low hot water output rate.

Method used

An electric heating assembly is designed. By setting up a buffer member, the outlet end of the water inlet pipe is penetrated into the cavity of the buffer member, and several outlet holes are provided at the bottom of the buffer member. Cold water forms a vortex in the cavity and flows out through the small holes, reducing the outlet flow rate of cold water and changing the flow direction of cold water to avoid the influence on hot water.

Benefits of technology

By reducing the flow rate of cold water and changing the flow direction of cold water, the mixing speed between cold water and hot water is significantly reduced, the hot water output rate of the electric water heater is improved, and the frequency of water heating is reduced, achieving the purpose of energy saving.

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Abstract

The electric heating assembly comprises a flange plate, an electric heating pipe, a water inlet pipe and a water outlet pipe, the electric heating pipe, the water inlet pipe and the water outlet pipe are located on the same side of the flange plate, and the external connection end of the electric heating pipe is fixedly installed on the flange plate in a sealed mode. The water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe penetrate through the flange plate and are in sealed connection with the flange plate; a cavity is formed in the buffering piece, the water outlet end of the water inlet pipe penetrates into the cavity, the water inlet pipe is connected with the buffering piece in a sealed mode, the outer wall of the water outlet end of the water inlet pipe and the inner wall of the buffering piece are arranged at intervals, and a plurality of water outlet holes are formed in the bottom of the buffering piece. According to the electric heating assembly, the influence of cold water on hot water is avoided by reducing the flow speed of the cold water and changing the flowing direction of the cold water, and the hot water output rate is improved.
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Description

Technical Field

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

[0002] An electric water heater is a water heater that uses electricity as an energy source for heating. It includes an inner tank and an electric heating component. The electric heating component is arranged in the inner tank to heat the water in the inner tank. The electric heating component generally includes an electric heating pipe, a water inlet pipe and a water outlet pipe. After the electric heating component is installed in the inner tank and the inner tank is placed horizontally, the water inlet pipe is in the middle of the height of the inner tank. The cold water entering the inner tank through the water inlet pipe will quickly mix with the hot water on the upper layer of the inner tank, which greatly reduces the temperature of the hot water and leads to a low hot water output rate. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, the utility model provides an electric heating component, which improves the hot water output rate by reducing the flow rate of cold water and changing the flow direction of cold water to avoid the influence of cold water on hot water.

[0004] The technical solution adopted by the utility model to solve the problem is:

[0005] An electric heating assembly comprises: a flange, an electric heating pipe, a water inlet pipe and a water outlet pipe, wherein the electric heating pipe, the water inlet pipe and the water outlet pipe are located on the same side of the flange, the external end of the electric heating pipe is sealed and fixedly mounted on the flange, the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe both pass through the flange and are sealed and connected to the flange, and the water outlet pipe is located above the water inlet pipe;

[0006] It also includes: a buffer with a cavity inside, the water outlet end of the water inlet pipe penetrates into the cavity, and the water inlet pipe and the buffer are sealed and connected, the outer wall of the water outlet end of the water inlet pipe is spaced from the inner wall of the buffer, and a plurality of water outlet holes are opened at the bottom of the buffer.

[0007] Furthermore, the buffer component includes a closed shell, a cavity is formed in the shell, the water outlet end of the water inlet pipe penetrates into the cavity through the shell, and the water inlet pipe is sealed and connected to the shell, the outer wall of the water outlet end of the water inlet pipe is spaced apart from the inner wall of the shell, and a plurality of water outlet holes are opened at the bottom of the shell.

[0008] Furthermore, the shell is an integrated structure, and a through hole adapted to the water outlet end of the water inlet pipe is opened at the end of the shell near the water inlet pipe. The water outlet end of the water inlet pipe penetrates into the cavity through the through hole, and the water inlet pipe is sealed and connected to the shell at the through hole.

[0009] Furthermore, the outlet end of the water inlet pipe is a closed-end structure, and a plurality of water holes are provided on the pipe wall of the outlet end of the water inlet pipe.

[0010] Furthermore, the water inlet pipe comprises a first section, a connecting section and a second section which are sequentially arranged along the extension direction thereof, the first section is located obliquely above the second section, and the first section and the second section are connected via the connecting section;

[0011] One end of the first section away from the connecting section is the water inlet end of the water inlet pipe, and one end of the second section away from the connecting section is the water outlet end of the water inlet pipe.

[0012] Furthermore, the electric heating tube comprises a first heating section, a heating connection section and a second heating section which are sequentially arranged along the extension direction thereof, the first heating section is located obliquely above the second heating section, the first heating section and the second heating section are connected via the heating connection section, and an end of the first heating section away from the heating connection section is an external connection end of the electric heating tube;

[0013] The first heating section is arranged close to the first section, the heating connection section is arranged close to the connection section, and the second heating section is arranged close to the second section.

[0014] Furthermore, the water outlet pipe comprises a first water outlet section, a water outlet connecting section and a second water outlet section which are sequentially arranged along the extension direction thereof, the first water outlet section is located obliquely above the second water outlet section, the first water outlet section and the second water outlet section are connected via the water outlet connecting section, one end of the first water outlet section away from the water outlet connecting section is the water outlet end of the water outlet pipe, one end of the second water outlet section away from the water outlet connecting section is bent and extended obliquely upward to form an extension section, and one end of the extension section away from the second water outlet section is the water inlet end of the water outlet pipe;

[0015] The first water outlet section is arranged close to the first heating section, the water outlet connecting section is arranged close to the heating connecting section, and the second water outlet section is arranged close to the second heating section.

[0016] Furthermore, the second heating section is a U-shaped structure arranged along its extension direction, the second water outlet section is located in the U-shaped structure, and the extension section passes through the U-shaped structure and extends obliquely upward.

[0017] Furthermore, the electric heating component also includes a temperature measuring tube, which is installed on the flange, and the temperature measuring tube and the electric heating tube are located on the same side of the flange.

[0018] The utility model also provides an electric water heater, comprising: an inner tank and an electric heating component, wherein an opening adapted to the electric heating component is provided at the end of the inner tank, the opening is connected to the inner tank cavity of the inner tank, and the electric heating component is installed in the opening and extends to the inner tank cavity.

[0019] The beneficial effects of the electric heating assembly and electric water heater provided by the utility model are as follows:

[0020] By setting a buffer so that the outlet end of the water inlet pipe is inserted into the cavity of the buffer, and the outer wall of the outlet end of the water inlet pipe is spaced from the inner wall of the buffer, after the cold water flows out from the outlet end of the water inlet pipe, a vortex will be formed in the cavity, thereby preliminarily reducing the outlet flow rate of the cold water; in combination with the fact that a plurality of outlet holes can be provided at the bottom of the buffer, the outlet holes have a smaller aperture, which can further reduce the outlet flow rate of the cold water, thereby allowing the cold water to slowly flow into the inner tank cavity of the electric water heater, greatly reducing the speed at which the cold water and the hot water are mixed; and, since the outlet holes are distributed at the bottom of the buffer, the cold water flows out from the outlet holes and flows toward the bottom of the inner tank cavity, further reducing the influence of the cold water on the upper hot water layer in the inner tank cavity. Thus, the electric heating component of the utility model improves the hot water output rate of the electric water heater by reducing the flow rate of the cold water and changing the flow direction of the cold water to avoid the influence of the cold water on the hot water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the electric heating component of the utility model;

[0022] Figure 2 This is a front view of the electric heating assembly of the utility model;

[0023] Figure 3 It is a bottom view of the electric heating component of the utility model.

[0024] The meanings of the reference numerals are as follows:

[0025] 1. Flange; 2. Electric heating tube; 21. First heating section; 22. Heating connecting section; 23. Second heating section; 3. Water inlet pipe; 31. First section; 32. Connecting section; 33. Second section; 4. Water outlet pipe; 41. First water outlet section; 42. Water outlet connecting section; 43. Second water outlet section; 44. Extension section; 5. Buffer; 51. Cavity; 52. Water outlet hole; 53 Shell; 6. Temperature measuring tube. DETAILED DESCRIPTION

[0026] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See also Figure 1-3 The utility model provides an electric heating component, including: a flange 1, an electric heating pipe 2, a water inlet pipe 3 and a water outlet pipe 4. The electric heating pipe 2, the water inlet pipe 3 and the water outlet pipe 4 are located on the same side of the flange 1. The external end of the electric heating pipe 2 is sealed and fixedly installed on the flange 1. The water inlet end of the water inlet pipe 3 and the water outlet end of the water outlet pipe 4 both pass through the flange 1 and are sealed and connected to the flange 1. The water outlet pipe 4 is located above the water inlet pipe 3. The electric heating component is used in an electric water heater. Cold water flows into the inner tank cavity of the electric water heater through the water inlet pipe 3. After the electric heating pipe 2 heats the cold water in the inner tank cavity, hot water reaching a certain temperature can be discharged through the water outlet pipe 4. In the utility model, "certain temperature" refers to the hot water temperature set by the user when using the electric water heater. The temperature set by different users is different, and no specific limitation is made here.

[0030] Specifically, the external end of the electric heating tube 2 is fixedly mounted on the flange 1 by welding and sealing, and when the electric heating assembly is used in an electric water heater, the external end of the electric heating tube 2 is electrically connected to the control module of the electric water heater, so that the electric heating tube 2 can be controlled by the control module to heat the water in the inner tank cavity of the electric water heater.

[0031] The flange 1 is provided with a first mounting hole adapted to the water inlet end of the water inlet pipe 3, and the water inlet end of the water inlet pipe 3 passes through the first mounting hole to connect cold water through an external pipeline. The water inlet end of the water inlet pipe 3 is sealed and connected to the flange 1 at the first mounting hole, and the sealing connection method can be welding, high temperature resistant sealant connection, or bolt sealing connection, etc.

[0032] The flange 1 is also provided with a second mounting hole adapted to the water outlet end of the water outlet pipe 4. The water outlet end of the water outlet pipe 4 passes through the second mounting hole to provide hot water to the user through the hot water pipeline. The water outlet end of the water outlet pipe 4 is sealed and connected to the flange 1 at the second mounting hole. The sealing connection method can be welding, high temperature resistant sealant connection, or bolt sealing connection.

[0033] On the basis of the above structure, the electric heating pipe 2, the water inlet pipe 3 and the water outlet pipe 4 are located on the same side of the flange 1 and all extend along the length direction.

[0034] The electric heating component of the utility model also includes a buffer member 5 with a cavity 51 inside. The water outlet end of the water inlet pipe 3 penetrates into the cavity 51, and the water inlet pipe 3 is sealed and connected to the buffer member 5. The outer wall of the water outlet end of the water inlet pipe 3 and the inner wall of the buffer member 5 are spaced apart, and a plurality of water outlet holes 52 are opened at the bottom of the buffer member 5.

[0035] Therefore, the utility model sets a buffer 5 to allow the water outlet end of the water inlet pipe 3 to penetrate into the cavity 51 of the buffer 5, and the outer wall of the water outlet end of the water inlet pipe 3 is set at a distance from the inner wall of the buffer 5. After the cold water flows out from the water outlet end of the water inlet pipe 3, a vortex will be formed in the cavity 51, thereby preliminarily reducing the water outlet flow rate of the cold water; in addition, a plurality of water outlet holes 52 may be provided at the bottom of the buffer 5, and the aperture of the water outlet holes 52 is small, which can further reduce the water outlet flow rate of the cold water. Therefore, when the electric heating component is applied to the electric water heater, the cold water can slowly flow into the inner tank cavity of the electric water heater, greatly reducing the mixing speed of the cold water and the hot water; and, since the water outlet holes 52 are distributed at the bottom of the buffer 5, the cold water flows out from the water outlet holes 52 and flows toward the bottom of the inner tank cavity, further reducing the influence of the cold water on the upper hot water layer in the inner tank cavity. Therefore, the electric heating component of the utility model reduces the flow rate of cold water and changes the flow direction of cold water to avoid the influence of cold water on hot water, thereby improving the hot water output rate of the electric water heater.

[0036] Specifically, the buffer 5 includes a sealed shell 53, a cavity 51 is formed in the shell 53, the water outlet end of the water inlet pipe 3 penetrates into the cavity 51 through the shell 53, and the water inlet pipe 3 is sealed and connected to the shell 53, the outer wall of the water outlet end of the water inlet pipe 3 is spaced from the inner wall of the shell 53, and a plurality of water outlet holes 52 are opened at the bottom of the shell 53. As a result, the cold water flowing out of the water outlet end of the water inlet pipe 3 will first form a vortex in the cavity 51 of the shell 53 to achieve a preliminary reduction in the water outlet flow rate, and then flow out from the water outlet holes 52 at the bottom of the shell 53 to further reduce the water outlet flow rate.

[0037] It is worth noting that the several water outlet holes 52 of the utility model are densely dispersed at the bottom of the shell 53. After the cold water that forms a vortex in the cavity 51 flows out through the several water outlet holes 52 with densely distributed small apertures, the cold water will flow rapidly to the bottom of the inner tank cavity after flowing out from the water outlet holes 52 due to the disturbance of the vortex and the influence of water pressure, and will not disperse to the surroundings, so that the cold water can quickly reach the bottom of the inner tank cavity, thereby greatly reducing the impact on the hot water in the upper layer of the inner tank cavity, avoiding the electric heating tube 2 to repeatedly heat the hot water in the inner tank cavity, reducing the power consumption of the electric heating tube 2, and improving the hot water output rate.

[0038] In the present invention, the shell 53 is an integrated structure, and a through hole adapted to the water outlet of the water inlet pipe 3 is provided at the end of the shell 53 near the water inlet pipe 3, and the water outlet of the water inlet pipe 3 penetrates into the cavity 51 through the through hole, and the water inlet pipe 3 is sealed and connected to the shell 53 at the through hole. Therefore, the shell 53 has a good sealing property, and can prevent the cold water flowing into the cavity 51 from flowing out from a part other than the water outlet hole 52, so that the cold water flows from the water outlet hole 52 to the bottom of the inner tank cavity, so as to ensure the accuracy of the cold water flow direction.

[0039] The sealed connection between the water inlet pipe 3 and the shell 53 at the through hole can be a connection with a high temperature resistant sealant. Alternatively, when the shell 53 is made of metal, it can be welded.

[0040] Of course, in practical applications, the housing 53 may also be a split structure, which includes an upper housing and a lower housing, which are sealed and covered to form an inner cavity 51 therein, and a plurality of water outlet holes 52 are provided at the bottom of the lower housing. The upper housing and the lower housing are respectively provided with an upper opening and a lower opening at the ends close to the water inlet pipe 3, and after the upper housing and the lower housing are covered, the upper opening and the lower opening surround a through hole adapted to the water outlet end of the water inlet pipe 3, so that the water outlet end of the water inlet pipe 3 passes through the through hole into the cavity 51. In this structure, attention should be paid to the sealing of the connection between the upper housing and the lower housing and the sealing of the connection between the upper opening and the lower opening.

[0041] Furthermore, the outlet end of the water inlet pipe 3 is a closed-end structure, and a plurality of water holes are provided in the pipe wall of the outlet end of the water inlet pipe 3. When the cold water flows out from the outlet end of the water inlet pipe 3, it first flows into the cavity 51 of the shell 53 through a plurality of densely dispersed water holes, and then forms a vortex in the cavity 51, thereby slowing down the speed of the cold water entering the cavity 51, and further reducing the speed of the cold water finally flowing out of the water outlet hole 52, that is, further reducing the speed of the cold water and hot water mixing in the inner tank cavity, so that the hot water output rate of the electric water heater is further improved.

[0042] Specifically, the water inlet pipe 3 includes a first section 31, a connecting section 32, and a second section 33 which are sequentially arranged along the extension direction thereof. The first section 31 is located obliquely above the second section 33, and the first section 31 and the second section 33 are connected by the connecting section 32. The end of the first section 31 away from the connecting section 32 is the water inlet end of the water inlet pipe 3, and the end of the second section 33 away from the connecting section 32 is the water outlet end of the water inlet pipe 3. After the cold water enters the first section 31 from the water inlet end, it flows downward through the connecting section 32, and then flows from the water outlet end of the second section 33 through the buffer 5 into the inner tank cavity, so that the position where the cold water flows out from the electric heating component is closer to the bottom of the inner tank cavity, further avoiding the influence of the cold water on the upper hot water.

[0043] The electric heating tube 2 includes a first heating section 21, a heating connection section 22, and a second heating section 23 which are sequentially arranged along its extension direction. The first heating section 21 is located obliquely above the second heating section 23. The first heating section 21 and the second heating section 23 are connected by the heating connection section 22. The end of the first heating section 21 away from the heating connection section 22 is the external connection end of the electric heating tube 2. The first heating section 21 is arranged close to the first section 31, the heating connection section 22 is arranged close to the connection section 32, and the second heating section 23 is arranged close to the second section 33. The electric heating tube 2 includes the upper first heating section 21, the middle heating connection section 22, and the lower second heating section 23, so that the electric heating tube 2 can heat the water in the inner pot cavity more evenly and improve the heating efficiency.

[0044] The water outlet pipe 4 includes a first water outlet section 41, a water outlet connection section 42, and a second water outlet section 43 which are sequentially arranged along the extension direction thereof. The first water outlet section 41 is located obliquely above the second water outlet section 43. The first water outlet section 41 and the second water outlet section 43 are connected by the water outlet connection section 42. The end of the first water outlet section 41 away from the water outlet connection section 42 is the water outlet end of the water outlet pipe 4. The end of the second water outlet section 43 away from the water outlet connection section 42 is bent and extended obliquely upward to form an extension section 44. The end of the extension section 44 away from the second water outlet section 43 is the water inlet end of the water outlet pipe 4. The first water outlet section 41 is arranged close to the first heating section 21, the water outlet connection section 42 is arranged close to the heating connection section 22, and the second water outlet section 43 is arranged close to the second heating section 23. After the water in the inner tank cavity is heated, the hot water will rise to the upper area of ​​the inner tank cavity due to its small specific gravity. The water inlet end of the water outlet pipe 4 is set at the end of the extension section 44 away from the second water outlet section 43. This position is higher, and the hot water temperature is less affected by cold water, which can improve the output rate of hot water. In addition, during the process of hot water being output through the second water outlet section 43, the water outlet connecting section 42, and the first water outlet section 41 in sequence, the corresponding second heating section 23, the heating connecting section 22, and the second heating section 21 can transfer heat to the water outlet pipe 4 to ensure the outlet water temperature of the hot water.

[0045] Furthermore, the second heating section 23 is a U-shaped structure arranged along its extension direction, the second water outlet section 43 is located in the U-shaped structure, and the extension section 44 passes through the U-shaped structure and extends obliquely upward. The second water outlet section 43 is surrounded by the second heating section 23, further ensuring the outlet water temperature of the hot water.

[0046] The electric heating assembly of the utility model further includes a temperature measuring tube 6, which is mounted on the flange 1, and the temperature measuring tube 6 and the electric heating tube 2 are located on the same side of the flange 1. When the electric heating assembly is used in an electric water heater, the temperature measuring tube 6 is electrically connected to a control module of the electric water heater, so that the temperature of the hot water in the inner tank cavity can be monitored in real time through the temperature measuring tube 6 and fed back to the control module to determine whether the hot water temperature of the electric water heater reaches a set value.

[0047] It should be noted that since the electric heating tube 2, the water inlet pipe 3, the water outlet pipe 4, the buffer 5 and the temperature measuring tube 6 are all installed in the inner tank cavity for a long time, they need to have the characteristics of high temperature resistance and corrosion resistance.

[0048] In addition to the above-mentioned electric heating component, the utility model also provides an electric water heater, which includes an inner tank and an electric heating component. An opening adapted for the electric heating component is opened at the end of the inner tank, and the opening is connected to the inner tank cavity of the inner tank. The electric heating component is installed in the opening and extends to the inner tank cavity.

[0049] Specifically, the inner tank is horizontally installed in the outer shell of the electric water heater. The horizontal installation direction of the inner tank is the length direction of the inner tank. An opening connected to the inner tank cavity is provided at one end in the length direction of the inner tank. The opening is adapted to a flange 1 so that the flange 1 can be sealed and fixed at the opening. The electric heating tube 2, the water inlet pipe 3, the water outlet pipe 4, the buffer 5 and the temperature measuring tube 6 extend through the opening along the length direction to the inner tank cavity, thereby realizing the installation of the electric heating component in the inner tank.

[0050] Since the electric heating component of the utility model is provided with a buffer 5 so that the water outlet end of the water inlet pipe 3 is inserted into the cavity 51 of the buffer 5, and the outer wall of the water outlet end of the water inlet pipe 3 is spaced apart from the inner wall of the buffer 5, after the cold water flows out from the water outlet end of the water inlet pipe 3, a vortex will be formed in the cavity 51, thereby preliminarily reducing the water outlet flow rate of the cold water; in addition, a plurality of water outlet holes 52 may be provided at the bottom of the buffer 5, and the aperture of the water outlet holes 52 is small, which can further reduce the water outlet flow rate of the cold water, so that when the electric heating component is applied to the electric water heater, the cold water can flow slowly into the inner tank cavity of the electric water heater, greatly reducing the mixing speed of the cold water and the hot water; and, since the water outlet holes 52 are distributed at the bottom of the buffer 5, the cold water flows out from the water outlet holes 52 and flows toward the bottom of the inner tank cavity, further reducing the influence of the cold water on the upper hot water layer in the inner tank cavity. Therefore, the electric heating component of the utility model reduces the flow rate of cold water and changes the flow direction of cold water to avoid the influence of cold water on hot water, thereby improving the hot water output rate of the electric water heater.

[0051] Furthermore, since the influence of cold water on hot water is avoided by reducing the flow rate of cold water and changing the flow direction of cold water, the frequency of water heating in the inner tank cavity can be greatly reduced, thereby achieving the purpose of energy saving.

[0052] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electric heating component, characterized in that: include: A flange, an electric heating pipe, a water inlet pipe and a water outlet pipe, wherein the electric heating pipe, the water inlet pipe and the water outlet pipe are located on the same side of the flange, the external end of the electric heating pipe is sealed and fixedly mounted on the flange, the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe both pass through the flange and are sealed and connected to the flange, and the water outlet pipe is located above the water inlet pipe; It also includes: a buffer component with a cavity inside, the water outlet end of the water inlet pipe penetrates into the cavity, and the water inlet pipe is sealed and connected to the buffer component, the outer wall of the water outlet end of the water inlet pipe is spaced from the inner wall of the buffer component, and a plurality of water outlet holes are opened at the bottom of the buffer component.

2. The electric heating assembly according to claim 1, characterized in that: The buffer component includes a sealed shell, the cavity is formed in the shell, the water outlet end of the water inlet pipe penetrates into the cavity through the shell, and the water inlet pipe is sealed and connected to the shell, the outer wall of the water outlet end of the water inlet pipe is spaced apart from the inner wall of the shell, and a plurality of water outlet holes are opened at the bottom of the shell.

3. The electric heating assembly according to claim 2, characterized in that: The shell is an integrated structure, and a through hole adapted to the water outlet end of the water inlet pipe is opened at the end of the shell near the water inlet pipe. The water outlet end of the water inlet pipe penetrates into the cavity through the through hole, and the water inlet pipe is sealed and connected to the shell at the through hole.

4. The electric heating assembly according to claim 1, characterized in that: The outlet end of the water inlet pipe is a closed-end structure, and a plurality of water holes are provided on the pipe wall of the outlet end of the water inlet pipe.

5. The electric heating assembly according to claim 1, characterized in that: The water inlet pipe comprises a first section, a connecting section and a second section arranged in sequence along its extending direction, the first section is located obliquely above the second section, and the first section and the second section are connected by the connecting section; One end of the first section away from the connecting section is the water inlet end of the water inlet pipe, and one end of the second section away from the connecting section is the water outlet end of the water inlet pipe.

6. The electric heating assembly according to claim 5, characterized in that: The electric heating tube comprises a first heating section, a heating connection section and a second heating section arranged in sequence along its extension direction, the first heating section is located obliquely above the second heating section, the first heating section and the second heating section are connected via the heating connection section, and an end of the first heating section away from the heating connection section is an external connection end of the electric heating tube; The first heating section is disposed close to the first section, the heating connection section is disposed close to the connection section, and the second heating section is disposed close to the second section.

7. The electric heating assembly according to claim 6, characterized in that: The water outlet pipe comprises a first water outlet section, a water outlet connecting section and a second water outlet section which are sequentially arranged along the extension direction thereof, the first water outlet section is located obliquely above the second water outlet section, the first water outlet section and the second water outlet section are connected via the water outlet connecting section, one end of the first water outlet section away from the water outlet connecting section is the water outlet end of the water outlet pipe, one end of the second water outlet section away from the water outlet connecting section is bent and extended obliquely upward to form an extension section, and one end of the extension section away from the second water outlet section is the water inlet end of the water outlet pipe; The first water outlet section is arranged close to the first heating section, the water outlet connection section is arranged close to the heating connection section, and the second water outlet section is arranged close to the second heating section.

8. The electric heating assembly according to claim 7, characterized in that: The second heating section is a U-shaped structure arranged along its extension direction, the second water outlet section is located in the U-shaped structure, and the extension section passes through the U-shaped structure and extends obliquely upward.

9. The electric heating assembly according to claim 1, characterized in that: The electric heating assembly also includes a temperature measuring tube, which is installed on the flange, and the temperature measuring tube and the electric heating tube are located on the same side of the flange.

10. An electric water heater, characterized in that: include: An inner pot and the electric heating component as described in any one of claims 1 to 9, wherein an opening adapted to the electric heating component is provided at the end of the inner pot, the opening is connected to the inner pot cavity of the inner pot, and the electric heating component is installed in the opening and extends to the inner pot cavity.