Electric water heater

Abstract

The application relates to an electric water heater, which comprises an inner container, a flange plate and at least one temperature measuring assembly. The inner container is provided with a water storage cavity and a container mouth, and the water storage cavity is communicated with the container mouth. The flange plate is arranged at the container mouth and connected with the inner container. The temperature measuring assembly is arranged in the water storage cavity and connected with the flange plate, and the at least one temperature measuring assembly can rotate relative to the flange plate to measure the water temperature at different positions in the water storage cavity. Since the at least one temperature measuring assembly can rotate relative to the flange plate, the temperature measuring assembly can measure the water temperature at different positions in the water storage cavity according to the actual requirement of a user by rotating the temperature measuring assembly, so that the temperature control precision of the electric water heater, the use flexibility and the user experience are improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to an electric water heater. Background Technology

[0002] With the improvement of living standards, the popularity of electric water heaters is constantly increasing. Typically, an electric water heater includes an inner tank, a heating element, and a temperature sensing element. Both the heating element and the temperature sensing element are located inside the inner tank. When the heating element is powered on, it converts the input electrical energy into heat energy to heat the water inside the tank. The temperature sensing element monitors the water temperature inside the tank, and when the water temperature reaches the set temperature, the heating element stops heating. However, the temperature control accuracy of common electric water heaters is relatively poor. Utility Model Content

[0003] Therefore, it is necessary to provide an electric water heater that improves the accuracy of temperature control.

[0004] An electric water heater, comprising:

[0005] The inner liner is provided with a water storage cavity and a liner opening, and the water storage cavity is connected to the liner opening;

[0006] A flange, wherein the flange is disposed at the inlet and connected to the inner liner; and

[0007] A temperature measuring component is disposed inside the water storage chamber and connected to the flange. At least one of the temperature measuring components can rotate relative to the flange to measure the water temperature at different locations inside the water storage chamber.

[0008] In one embodiment, the temperature measuring component includes:

[0009] A temperature-sensing blind tube, wherein the temperature-sensing blind tube is a hollow tube, having an open end and a closed end, the open end being rotatably connected to the flange, and the closed end being disposed within the water storage cavity; and

[0010] A temperature sensing element is disposed inside the temperature measuring blind tube through the open end.

[0011] In one embodiment, the flange is provided with a hollow fixing seat, the fixing seat is connected to the inlet, and the open end is located inside the fixing seat;

[0012] The inner peripheral wall of the fixed base is provided with a boss, the boss is provided with a first limiting part, the outer peripheral wall of the open end is provided with a flange, the flange is provided with a second limiting part, the first limiting part and the second limiting part cooperate to limit the rotation of the temperature measuring blind tube.

[0013] In one embodiment, one of the first limiting portion and the second limiting portion is provided with a limiting notch, and the other of the first limiting portion and the second limiting portion is provided with a limiting protrusion, wherein the limiting protrusion and the limiting notch are mutually limiting.

[0014] The limiting notch is provided in at least two, and the at least two limiting notches are provided at circumferential intervals along one of the boss and the flange; and / or, the limiting notch is provided in at least two, and the at least two limiting notches are provided at circumferential intervals along the other of the limiting protrusion and the flange.

[0015] In one embodiment, the electric water heater further includes:

[0016] A sealing element is disposed on the fixed base and is sealed to the fixed base.

[0017] In one embodiment, the sealing element includes:

[0018] The cap body, wherein the cap body has a through hole, the through hole being connected to the temperature measuring blind tube; and

[0019] An annular plug, wherein the annular plug is connected to the cap body;

[0020] The fixed base is provided with an internal thread, the annular plug is provided with an external thread, the annular plug is located inside the fixed base and is threadedly connected to the fixed base, the cap body is located outside the fixed base, and the end of the annular plug opposite to the cap body abuts against the flange.

[0021] Alternatively, the fixing seat is provided with external threads, the annular plug is provided with internal threads, the annular plug is sleeved on the outside of the fixing seat and threadedly connected to the fixing seat, and the cap body abuts against the flange.

[0022] In one embodiment, the hollow tube includes at least:

[0023] The temperature sensing element is disposed within the arc-shaped tube body.

[0024] In one embodiment, the closed end is located at the upper part of the water storage cavity, and the temperature sensing element is disposed at the closed end.

[0025] In one embodiment, at least two temperature measuring components are provided, and the at least two temperature measuring components are spaced apart along the height direction of the inner liner;

[0026] And / or, at least one of the temperature sensing components is detachably connected to the flange.

[0027] In one embodiment, the electric water heater further includes:

[0028] A heating element is provided, at least one heating element is provided, the heating element is disposed in the water storage cavity and connected to the flange, and at least one end of the heating element opposite to the flange is disposed in the lower part of the water storage cavity.

[0029] In the aforementioned electric water heater, at least one temperature sensing component can rotate relative to the flange. This allows the temperature sensing component to be rotated according to the user's actual needs, enabling it to measure the water temperature at different locations within the storage chamber. This, in turn, improves the accuracy of temperature control, the flexibility of use, and the user experience of the electric water heater. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of an electric water heater according to an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the structure of an electric water heater according to an embodiment of this application, in which the temperature measuring component and the heating element are assembled into the inner tank via a flange.

[0032] Figure 3 for Figure 2 The diagram shows a cross-sectional view of the temperature measuring component and heating element of an electric water heater assembled into the inner tank via a flange.

[0033] Figure 4 for Figure 3 The diagram shows the assembled structure of the electric water heater's flange, temperature sensing component, and heating element.

[0034] Figure 5 for Figure 4 The image shows a front view of the assembled flange, temperature sensing component, and heating element of the electric water heater.

[0035] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0036] Figure 7 for Figure 5 The image shows a right view of the electric water heater after the flange, temperature sensing component, and heating element have been assembled.

[0037] Figure 8 for Figure 7 The diagram shows the structure of the electric water heater after the temperature measuring blind tube and the fixed base are assembled.

[0038] Figure 9 This is a cross-sectional view of the temperature measuring component and heating element of an electric water heater according to another embodiment of this application, assembled in the inner tank via a flange.

[0039] Figure 10 for Figure 9 The diagram shows the assembled structure of the electric water heater's flange, temperature sensing component, and heating element.

[0040] Figure 11 for Figure 10 A magnified view of a portion of point B in the middle.

[0041] Explanation of icon numbers:

[0042] 10. Outer shell; 20. Inner liner; 21. Water storage chamber; 22. Tank opening; 23. Water inlet; 24. Water outlet; 30. Flange; 31. Perforation; 32. Fixing base; 321. Boss; 3211. Limiting protrusion; 40. Temperature measuring component; 41. Temperature measuring blind tube; 411. Open end; 4111. Opening; 412. Closed end; 413. Flanged edge; 4131. Limiting notch; 50. Heating element; 60. Sealing element; 61. Cap body; 611. Through hole; 62. Annular plug; 70. Water inlet pipe; 80. Water outlet pipe. Detailed Implementation

[0043] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0044] See Figure 1 , Figure 2 and Figure 3 An embodiment of this application provides an electric water heater including a shell 10, an inner tank 20, a flange 30, a temperature measuring component 40, and a heating element 50.

[0045] See Figure 1 and Figure 2 The inner tank 20 is housed within the outer shell 10. In this way, the outer shell 10 protects the inner tank 20 from impacts, extending the lifespan of the electric water heater. Simultaneously, a heat insulation barrier is formed between the outer shell 10 and the inner tank 20, which helps reduce heat loss and save energy. Further details can be found in the following section. Figure 3 The inner liner 20 is provided with a water storage cavity 21 and a liner opening 22, and the water storage cavity 21 is connected to the liner opening 22. Optionally, the liner opening 22 is located in the middle of the side wall of the inner liner 20.

[0046] See Figure 3 A flange 30 is located at the inlet 22 and connected to the inner tank 20. Temperature sensing element 40 and heating element 50 are both located within the water storage chamber 21 and connected to the flange 30. At least one temperature sensing element 40 can rotate relative to the flange 30 to measure the water temperature at different locations within the water storage chamber 21.

[0047] In the aforementioned electric water heater, the temperature sensing component 40 and the heating element 50 are both located inside the water storage chamber 21 and mounted on the inner tank 20 via the flange 30. This eliminates the need for additional openings in the inner tank 20, reducing the number of openings, simplifying the manufacturing process, lowering production costs, and reducing the risk of leaks in the inner tank 20, thereby reducing maintenance and replacement costs. Since at least one temperature sensing component 40 can rotate relative to the flange 30, it can be rotated according to the user's needs, allowing it to measure the water temperature at different locations within the water storage chamber 21. This improves the accuracy of temperature control, the flexibility of use, and the user experience.

[0048] In one embodiment, see Figure 3 The bottom of the inner liner 20 is provided with an inlet 23 and an outlet 24, both of which are connected to the water storage chamber 21.

[0049] Further, see Figure 3 The electric water heater also includes an inlet pipe 70 and an outlet pipe 80. The inlet pipe 70 is located at the inlet 23, and the outlet pipe 80 is located at the outlet 24 and extends to the upper part of the storage chamber 21. During use, tap water enters the bottom of the storage chamber 21 through the inlet pipe 70. Due to the low temperature and high density of the incoming water, cold water settles at the bottom of the storage chamber 21. When the heating element 50 is energized, it converts the input electrical energy into heat energy, directly heating the water in the storage chamber 21. The heated water, due to its reduced density, rises to the upper part of the storage chamber 21, forming a stable stratification of hot water at the top and cold water at the bottom. When the user turns on the hot water tap, the hot water in the upper part of the storage chamber 21 flows out through the outlet pipe 80. As the hot water flows out, the water level in the storage chamber 21 drops, and cold water continues to replenish the storage chamber 21 through the inlet pipe 70 and is promptly heated by the heating element 50.

[0050] In one embodiment, see Figure 3 The heating element 50 adopts a submerged structure. Specifically, the end of the heating element 50 facing away from the flange 30 is located in the lower part of the water storage chamber 21. It should be noted that the water temperature in the upper part of the water storage chamber 21 is higher than that in the lower part. Therefore, placing the heating element 50 in the lower part of the water storage chamber 21 can improve the hot water output rate and prevent the water in the lower part of the water storage chamber 21 from not being heated. In addition, since the heating element 50 is located in the lower part of the water storage chamber 21, even if the water level in the water storage chamber 21 drops due to use, the heating element 50 is unlikely to be exposed above the water surface, reducing the risk of the heating element 50 burning dry.

[0051] It should be noted that the number of heating elements 50 can be set according to actual needs, and no specific limitation is made here. Optionally, there is one heating element 50, with one heating element 50 submerged in the lower part of the water storage chamber 21. Optionally, there are two heating elements 50, with one heating element 50 submerged in the lower part of the water storage chamber 21 and the other heating element 50 raised to the upper part of the water storage chamber 21.

[0052] In one embodiment, see Figure 3 The end of the temperature sensing component 40 facing away from the flange 30 is located at the upper part of the water storage chamber 21. It can be understood that the temperature sensing component 40 extends towards the top of the inner tank 20. During use, hot water in the upper part of the water storage chamber 21 flows out through the outlet pipe 80; therefore, extending the temperature sensing component 40 to the upper part of the water storage chamber 21 allows for more accurate measurement of the outlet water temperature.

[0053] In one embodiment, see Figure 3 and Figure 5 The distance between the temperature sensing component 40 and the heating element 50 is greater than the size of the inlet 22. Here, H1 represents the distance between the temperature sensing component 40 and the heating element 50, and H2 represents the size of the inlet 22. Thus, the distance between the temperature sensing component 40 and the heating element 50 is relatively large, while the size of the inlet 22 is limited, which would prevent the heating element 50 from being installed.

[0054] Therefore, in this embodiment, the temperature measuring component 40 is detachably mounted on the flange 30. During installation, the flange 30 with the heating element 50 is installed on the inlet 22, then the temperature measuring component 40 is inserted into the water storage chamber 21, and finally mounted on the flange 30. In this way, because the temperature measuring component 40 is detachable, the problem of the inlet 22 being too small and the distance between the temperature measuring component 40 and the heating element 50 being too great for installation is solved.

[0055] In one embodiment, at least two temperature sensing components 40 are provided, and the at least two temperature sensing components 40 are spaced apart along the height direction of the inner tank 20. Since the at least two temperature sensing components 40 are distributed at different height positions of the inner tank 20, the temperature sensing components 40 can measure the water temperature at different height positions of the inner tank 20, making the temperature control of the electric water heater more precise. Furthermore, by providing at least two temperature sensing components 40 along the height direction of the inner tank 20, it is possible to match inner tanks 20 of different diameters, improving the versatility of the heating element 50.

[0056] Optionally, all temperature sensing components 40 are detachably mounted on the flange 30. Alternatively, some temperature sensing components 40 are detachably mounted on the flange 30, while others are fixed to the flange 30, wherein the distance between the temperature sensing components 40 fixed to the flange 30 and the heating element 50 is less than or equal to the size of the inlet 22.

[0057] In one embodiment, see Figure 4 , Figure 5 and Figure 6 The temperature measuring assembly 40 includes a temperature measuring blind tube 41 and a temperature sensing element. The temperature measuring blind tube 41 is a hollow tube with an open end 411 and a closed end 412. Specifically, one end of the temperature measuring blind tube 41 has an opening 4111, and the other end of the temperature measuring blind tube 41 away from the open end 411 is the closed end 412. The open end 411 of the temperature measuring blind tube 41 is rotatably connected to the flange 30, and the temperature sensing element is disposed inside the temperature measuring blind tube 41 through the opening 4111. This arrangement completely isolates the interior of the temperature measuring blind tube 41 from the water storage chamber 21, preventing water from the water storage chamber 21 from entering the temperature measuring blind tube 41. This prevents the temperature sensing element from getting damp and short-circuiting, extends the service life of the temperature sensing element, and ensures the sensitivity and accuracy of the temperature sensing element.

[0058] Optionally, the temperature sensing element is a temperature sensing probe. The temperature sensing probe is located at the closed end 412 of the temperature measuring blind tube 41. Of course, in other embodiments, the temperature sensing element may also be located in the middle of the length direction of the temperature measuring blind tube 41, and is not limited thereto.

[0059] In one embodiment, see Figure 5 The temperature-sensing blind tube 41 has an arc-shaped structure. Optionally, the temperature-sensing blind tube 41 is circularly arc-shaped. It should be noted that the curvature of the temperature-sensing blind tube 41 can be set according to the size of the inner tank 20, and is not limited here. Because the temperature-sensing blind tube 41 is arc-shaped, rotating the temperature-sensing blind tube 41 allows the temperature-sensing element inside the temperature-sensing blind tube 41 to measure the water temperature at different heights within the water storage chamber 21, which helps improve the temperature control accuracy of the electric water heater.

[0060] Of course, in other embodiments, the temperature measuring blind tube 41 includes a straight tube body and an arc-shaped tube body. One end of the straight tube body is connected to the flange 30, and the other end of the straight tube body is connected to the arc-shaped tube body. The temperature sensing element is disposed in the arc-shaped tube body.

[0061] In one embodiment, see Figure 6 The flange 30 is provided with a through hole 31 and a hollow fixing seat 32, with the through hole 31 communicating with the fixing seat 32. Optionally, the fixing seat 32 is located on the side of the flange 30 away from the inner liner 20 and is coaxially arranged with the through hole 31. The open end 411 of the temperature measuring blind tube 41 is located in the fixing seat 32, and the closed end 412 of the temperature measuring blind tube 41 is located in the water storage cavity 21 through the fixing seat 32, the through hole 31 and the liner opening 22.

[0062] Furthermore, the fixing base 32 is provided with a first limiting part, and the open end 411 of the temperature measuring blind tube 41 is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the rotation of the temperature measuring blind tube 41. In use, an external force is applied to the temperature measuring blind tube 41, causing the temperature measuring blind tube 41 to rotate relative to the flange 30. When the temperature measuring blind tube 41 rotates to the target position, the first limiting part and the second limiting part cooperate to limit further rotation of the temperature measuring blind tube 41, thereby achieving the positioning of the temperature measuring blind tube 41 and ensuring that the temperature measuring component 40 remains stable at the target position, which is beneficial to improving the reliability of water temperature measurement.

[0063] In one embodiment, see Figure 7 and Figure 8 The inner peripheral wall of the fixing base 32 is provided with a boss 321, which is an annular structure, and a first limiting part is provided on the boss 321. The outer peripheral wall of the opening end 411 of the temperature measuring blind tube 41 is provided with a flange 413, which is an annular structure, and the flange 413 is provided on the side of the boss 321 away from the inner liner 20, and a second limiting part is provided on the flange 413.

[0064] Further, see Figure 8 One of the boss 321 and the flange 413 is provided with a limiting notch 4131, and the other of the boss 321 and the flange 413 is provided with a limiting protrusion 3211. The limiting protrusion 3211 and the limiting notch 4131 are mutually limiting and engaging. There are at least two limiting notches 4131, which are spaced apart circumferentially along one of the boss 321 and the flange 413. There is one limiting protrusion 3211. In use, an external force is applied to the temperature measuring blind tube 41, causing the temperature measuring blind tube 41 to rotate relative to the flange 30. When the temperature measuring blind tube 41 rotates to the target position, the limiting protrusion 3211 is aligned with one of the limiting notches 4131. Then, the temperature measuring blind tube 41 is pushed so that the limiting protrusion 3211 is inserted into the limiting notch 4131 that is aligned with it. With the cooperation of the limiting protrusion 3211 and the limiting notch 4131, the further rotation of the temperature measuring blind tube 41 can be restricted.

[0065] Of course, in other embodiments, at least two limiting protrusions 3211 are provided, and the at least two limiting protrusions 3211 are spaced apart circumferentially along the other of the protrusion 321 and the flange 413, and one limiting notch 4131 is provided. Alternatively, at least two limiting protrusions 3211 are provided, and the at least two limiting protrusions 3211 are spaced apart circumferentially along the other of the limiting protrusion 3211 and the flange 413; at least two limiting notches 4131 are provided, and the at least two limiting notches 4131 are spaced apart circumferentially along the other of the limiting protrusion 3211 and the flange 413. With this configuration, the temperature measuring blind tube 41 can be rotated and fixed.

[0066] It should be noted that the number of limiting notches 4131 and limiting protrusions 3211 can be set according to actual needs, and is not limited here. In this embodiment, refer to... Figure 8 The boss 321 has a limiting protrusion 3211; the flange 413 has three limiting notches 4131, which are equally spaced along the circumference of the temperature measuring blind tube 41.

[0067] In one embodiment, see Figure 8 Multiple limiting notches 4131 are provided, and the included angle between two adjacent limiting notches 4131 is equal. In this way, equal positioning can be achieved, that is, every time the temperature measuring blind tube 41 rotates by a preset angle, the limiting protrusion 3211 can be aligned with the next limiting notch 4131, forming a stepped and uniform angle range, ensuring adjustment accuracy, and at the same time ensuring that the user can quickly set the required temperature measuring position.

[0068] Of course, in other embodiments, the angles between two adjacent limiting notches 4131 may also be unequal, thereby achieving differentiated gear positioning.

[0069] In one embodiment, multiple limiting protrusions 3211 are provided, and the included angle between two adjacent limiting protrusions 3211 is equal. In this way, equal positioning can be achieved, that is, every time the temperature measuring blind tube 41 rotates by a preset angle, the limiting notch 4131 can be aligned with the next limiting protrusion 3211, forming a stepped and uniform angle range, ensuring adjustment accuracy, and at the same time ensuring that the user can quickly set the required temperature measuring position.

[0070] Of course, in other embodiments, the included angle between two adjacent limiting protrusions 3211 may not be equal.

[0071] In one embodiment, see Figure 6 The electric water heater also includes a sealing component 60. The sealing component 60 is located on the fixing base 32 and is sealed to it. It should be noted that a sealing gasket or sealing ring can be used to achieve the seal between the temperature measuring blind tube 41, the fixing base 32, and the sealing component 60. During installation, the temperature measuring blind tube 41 is assembled onto the fixing base 32, and then the sealing component 60 is used to fix and seal the temperature measuring blind tube 41.

[0072] Furthermore, the sealing element 60 is a cap. Specifically, the sealing element 60 includes a cap body 61 and an annular plug 62, with the cap body 61 connected to the annular plug 62.

[0073] Optionally, see Figure 9 , Figure 10 and Figure 11The fixing base 32 has an internal thread, and the annular plug 62 has an external thread. The annular plug 62 is located inside the fixing base 32 and is threadedly connected to the fixing base 32. The cap body 61 is located outside the fixing base 32, and the end of the annular plug 62 facing away from the cap body 61 abuts against the flange 413. During installation, align the annular plug 62 with the fixing base 32, and then rotate the sealing member 60 to tighten the annular plug 62 onto the fixing base 32 by rotation. In this way, the annular plug 62 presses the flange 413 against the boss 321, thereby improving the reliability of the temperature measuring component 40 installation.

[0074] Optionally, see Figure 5 and Figure 6 The fixing base 32 has external threads, and the annular plug 62 has internal threads. The annular plug 62 is fitted over the fixing base 32 and threadedly connected to it. The cap 61 abuts against the flange 413. During installation, the annular plug 62 is aligned with the fixing base 32, and then the sealing member 60 is rotated to tighten it onto the fixing base 32. This allows the cap 61 to press against the flange 413, thereby improving the reliability of the temperature measuring component 40 installation.

[0075] In one embodiment, see Figure 6 and Figure 11 The cap body 61 has a through hole 611, which communicates with the temperature measuring blind tube 41. It should be noted that... (See also...) Figure 6 The through hole 611 is directly connected to the temperature measuring blind tube 41; see reference. Figure 11 The through hole 611 is indirectly connected to the temperature measuring blind tube 41 through the annular plug 62. During installation, the temperature sensing element can enter the temperature measuring blind tube 41 through the through hole 611. Thus, by providing the through hole 611 in the cap body 61, it is convenient to place the temperature sensing element in the temperature measuring blind tube 41, improving the ease of temperature sensing element installation.

[0076] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0077] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0079] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An electric water heater, characterised in that, include: The inner liner is provided with a water storage cavity and a liner opening, and the water storage cavity is connected to the liner opening; A flange, which is located at the liner opening and connected to the inner liner; as well as A temperature measuring component is provided, at least one of which is disposed in the water storage chamber and connected to the flange. At least one of the temperature measuring components can rotate relative to the flange to measure the water temperature at different locations in the water storage chamber.

2. The electric water heater according to claim 1, wherein The temperature measuring component includes: A temperature-sensing blind tube, wherein the temperature-sensing blind tube is a hollow tube, having an open end and a closed end, the open end being rotatably connected to the flange, and the closed end being disposed within the water storage cavity; and A temperature sensing element is disposed inside the temperature measuring blind tube through the open end.

3. The electric water heater according to claim 2, wherein The flange is provided with a hollow fixing seat, and the open end is located inside the fixing seat; The inner peripheral wall of the fixed base is provided with a boss, the boss is provided with a first limiting part, the outer peripheral wall of the open end is provided with a flange, the flange is provided with a second limiting part, the first limiting part and the second limiting part cooperate to limit the rotation of the temperature measuring blind tube.

4. The electric water heater according to claim 3, wherein One of the first limiting part and the second limiting part is provided with a limiting notch, and the other of the first limiting part and the second limiting part is provided with a limiting protrusion, wherein the limiting protrusion and the limiting notch are mutually limiting and engaging; The limiting notch is provided in at least two, and the at least two limiting notches are provided at circumferential intervals along one of the boss and the flange; and / or, the limiting notch is provided in at least two, and the at least two limiting notches are provided at circumferential intervals along the other of the limiting protrusion and the flange.

5. The electric water heater according to claim 3, wherein The electric water heater also includes: A sealing element is disposed on the fixed base and is sealed to the fixed base.

6. The electric water heater according to claim 5, wherein The sealing component includes: The cap body, wherein the cap body has a through hole, the through hole communicating with the temperature measuring blind tube; and An annular plug, wherein the annular plug is connected to the cap body; The fixed base is provided with an internal thread, the annular plug is provided with an external thread, the annular plug is located inside the fixed base and is threadedly connected to the fixed base, the cap body is located outside the fixed base, and the end of the annular plug opposite to the cap body abuts against the flange. Alternatively, the fixing seat is provided with external threads, the annular plug is provided with internal threads, the annular plug is sleeved on the outside of the fixing seat and threadedly connected to the fixing seat, and the cap body abuts against the flange.

7. The electric water heater according to claim 2, wherein The hollow tube includes at least: The temperature sensing element is disposed within the arc-shaped tube body.

8. The electric water heater according to claim 2, wherein The closed end is located at the upper part of the water storage cavity, and the temperature sensing element is located at the closed end.

9. The electric water heater according to any one of claims 1 to 8, characterized in that, The temperature measuring components are provided in at least two, and the at least two temperature measuring components are arranged at intervals along the height direction of the inner liner. And / or, at least one of the temperature sensing components is detachably connected to the flange.

10. The electric water heater according to any one of claims 1 to 8, characterized in that, The electric water heater also includes: A heating element is provided, at least one heating element is provided, the heating element is disposed in the water storage cavity and connected to the flange, and at least one end of the heating element opposite to the flange is disposed in the lower part of the water storage cavity.

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