Electric water heater

Abstract

The invention relates to the technical field of household appliances, in particular to an electric water heater which comprises a shell, a temperature controller and an integrated seat, one end of the shell is provided with an electrical chamber, and the bottom wall of the electrical chamber is provided with a material injection opening communicating with an inner cavity of the shell; the temperature controller is arranged in the electrical room; and the integrated seat is used for mounting the temperature controller and blocking the material injection port at the same time. Through the arrangement of the integrated seat, the integrated seat integrates the functions of installing the temperature controller and blocking the injection port, so that the temperature controller can be arranged at the edge position of the electrical room, and the injection port can be arranged at the edge position of the electrical room, so that the distance between the injection port and the inner container is increased; therefore, the foaming material is not adhered to the inner container when being injected, and the foaming effect is further ensured.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and more particularly to an electric water heater. Background Technology

[0002] Water heaters are common household appliances, categorized into electric water heaters, gas water heaters, heat pump water heaters, and solar water heaters. Electric water heaters are widely used due to their convenience. Current technology provides a dual-tank electric water heater, such as... Figure 1 and Figure 2 As shown, the device includes a shell 10', two inner tanks 20', a heating element, an insulation layer, and a thermostat 30'. The shell 10' has an inner cavity, and the two inner tanks 20' are both disposed within the inner cavity of the shell 10'. The heating element is disposed on the side wall of the inner tank 20' and extends into the interior of the inner tank 20'. The heating element is used to heat the water inside the inner tank 20'. The insulation layer is disposed between the inner tank 20' and the shell 10'. The insulation layer is used to keep the hot water in the inner tank 20' warm. The thermostat 30' is used to control the temperature of the hot water in the inner tank 20'.

[0003] An electrical chamber 11' is provided at one end of the shell 10'. The electrical chamber 11' has an injection port that communicates with the inner cavity of the shell 10'. The injection port is used to inject foaming material into the inner cavity of the shell 10'. The foaming material foams within the shell 10' to form an insulation layer. The injection port is positioned directly opposite the middle of the two inner liner 20' to ensure even injection of the foaming material into both inner liner 20'. After the foaming material has been injected through the injection port, the injection port cap 50' is used to seal the injection port to prevent the foaming material from overflowing.

[0004] Furthermore, the temperature controller 30' is installed inside the electrical chamber 11' via the mounting base 40'. Since the ends of both inner tanks 20' protrude from within the electrical chamber 11', the temperature controller 30' needs to be installed at the edge of the electrical chamber 11' and directly opposite the middle portion of the two inner tanks 20' to avoid interference with their ends. This causes a conflict between the position of the temperature controller 40' and the position of the injection port. To avoid the temperature controller 30' while still ensuring it is directly opposite the middle portion of the two inner tanks 20', the injection port needs to be positioned close to the middle portion of the two inner tanks 20'. This makes the injection port closer to the inner tanks 20', resulting in some foaming material sticking to the inner tanks 20' during injection, preventing the foaming material from being injected to the bottom all at once and affecting the foaming effect. Summary of the Invention

[0005] The purpose of this invention is to provide an electric water heater that can accommodate the installation positions of the thermostat and the filling port while ensuring the foaming effect.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Electric water heaters, including:

[0008] case;

[0009] An electrical chamber is located at one end of the housing, and the bottom wall of the electrical chamber is provided with a filling port that communicates with the inner cavity of the housing;

[0010] The thermostat is located in the electrical room;

[0011] An integrated base is used to mount the temperature controller and also to seal the injection port.

[0012] As a preferred technical solution for electric water heaters, the integrated base includes a base body and a sealing part. The base body is placed above the filling port and is used to install the thermostat. The sealing part is located at the lower end of the base body and is inserted into the filling port to seal the filling port.

[0013] As a preferred technical solution for electric water heaters, the lower end of the base is provided with a hook, which can extend into the filling port and engage with the end of the electrical compartment facing the inner cavity of the shell.

[0014] As a preferred technical solution for electric water heaters, the sealing part is provided with an avoidance notch, and the hook is disposed within the avoidance notch.

[0015] As a preferred technical solution for electric water heaters, the number of hooks is multiple, and the multiple hooks are distributed at intervals along the circumference of the sealing part.

[0016] As a preferred technical solution for electric water heaters, the cross-section of the inlet is polygonal, the cross-section of the sealing part is polygonal, and the shape of the sealing part is adapted to the shape of the inlet.

[0017] As a preferred technical solution for electric water heaters, the base is provided with a support connection part, the base of the thermostat is supported on the support connection part, and is connected to the support connection part.

[0018] As a preferred technical solution for electric water heaters, the base is further provided with two first limiting parts, which are used to limit the base of the thermostat on both sides along the first direction.

[0019] As a preferred technical solution for electric water heaters, the base is also provided with two second limiting parts, which are used to limit the base of the thermostat on both sides along the second direction.

[0020] As a preferred technical solution for electric water heaters, the second limiting part has a pressing part, which presses against the upper end of the base of the thermostat. The pressing part and the supporting connection part cooperate to limit the two ends of the base of the thermostat in the vertical direction.

[0021] As a preferred technical solution for electric water heaters, it also includes two inner tanks, both of which are disposed in the inner cavity of the shell, and the filling port and the thermostat are both located between the two inner tanks and at the edge of the electrical compartment.

[0022] The beneficial effects of this invention are:

[0023] This invention provides an electric water heater, including a shell, a thermostat, and an integrated base. One end of the shell has an electrical compartment, and the bottom wall of the electrical compartment has a filling port communicating with the inner cavity of the shell. The thermostat is located within the electrical compartment. The integrated base is used to install the thermostat and simultaneously seal the filling port. In other words, the integrated base integrates the functions of installing the thermostat and sealing the filling port, ensuring that both the thermostat and the filling port are located at the edge of the electrical compartment. This increases the distance between the filling port and the inner tank, preventing the foaming material from sticking to the inner tank during injection and thus ensuring the foaming effect. Attached Figure Description

[0024] Figure 1 Side view of an electric water heater provided for the prior art;

[0025] Figure 2 A side view of an existing electric water heater after removing the thermostat;

[0026] Figure 3 This is a schematic diagram of the structure of an electric water heater provided in an embodiment of the present invention;

[0027] Figure 4 This is a side view of an electric water heater provided in an embodiment of the present invention;

[0028] Figure 5 This is a side view of the electric water heater provided in an embodiment of the present invention after the thermostat has been removed;

[0029] Figure 6 This is a side view of the electric water heater provided in the embodiment of the present invention after removing the thermostat and the integrated base;

[0030] Figure 7 This is a first-view structural schematic diagram of the integrated base involved in the embodiments of the present invention;

[0031] Figure 8 This is a second-view structural schematic diagram of the integrated base involved in the embodiments of the present invention;

[0032] Figure 9 This is a schematic diagram of the integrated base and thermostat involved in the embodiments of the present invention.

[0033] In the picture:

[0034] 10', Shell; 11', Electrical compartment; 20', Inner liner; 30', Temperature controller; 40', Mounting base; 50', Inlet cap;

[0035] 10. Shell; 11. Electrical compartment; 111. Inlet; 20. Inner liner; 30. Temperature controller; 31. Base; 311. First connecting hole; 40. Integrated base; 41. Base body; 42. Support connecting part; 421. Second connecting hole; 43. First limiting part; 44. Second limiting part; 45. Pressing part; 46. Sealing part; 461. Notch; 47. Hook. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figures 3 to 9 As shown, this embodiment of the invention provides an electric water heater, including a shell 10, two inner tanks 20, a heating element, an insulation layer, and a thermostat 30. The shell 10 has an inner cavity, and the two inner tanks 20 are both disposed in the inner cavity of the shell 10, and the two inner tanks 20 are distributed vertically at intervals. The heating element is disposed on the side wall of the inner tank 20 and extends into the interior of the inner tank 20. The heating element is used to heat the water in the inner tank 20. The insulation layer is disposed between the inner tank 20 and the shell 10 and is used to keep the hot water in the inner tank 20 warm. The thermostat 30 is used to control the temperature of the hot water in the inner tank 20.

[0044] An electrical chamber 11 is provided at one end of the shell 10. An injection port 111, communicating with the inner cavity of the shell 10, is located between the two inner liner 20 and at the edge of the electrical chamber 11. The injection port 111 is used to inject foaming material into the inner cavity of the shell 10. The foaming material foams within the inner liner 20 to form an insulation layer. After the foaming material is injected through the injection port 111, it needs to be sealed to prevent overflow. Additionally, a temperature controller 30 is also located within the electrical chamber 11, between the two inner liner 20 and at the edge of the electrical chamber 11. To balance the arrangement of the thermostat 30 and the filling port 111 within the electrical compartment 11, the electric water heater provided in this embodiment of the invention also includes an integrated base 40. The integrated base 40 can both install the thermostat 30 and block the filling port 111. That is, the integrated base 40 integrates the functions of installing the thermostat 30 and blocking the filling port 111, ensuring that both the thermostat 30 and the filling port 111 are located at the edge of the electrical compartment 11. This increases the distance between the filling port 111 and the inner tank 20, preventing the foaming material from sticking to the inner tank 20 during injection and thus ensuring the foaming effect.

[0045] In this embodiment, there are two inner liner 20s, arranged vertically. The electrical chamber 11 is located at one end of the shell 10 along the left-right direction, and the injection port 111 is directly opposite the middle part of the two inner liner 20s. When injecting the foaming material, the shell 10 is first erected, that is, the end of the shell 10 with the electrical chamber 11 facing upwards, so as to facilitate the injection of foaming material into the inner cavity of the shell 10 through the injection port 111. Of course, the number of inner liner 20 is not limited to two; it can also be one or more. The position of the injection port 111 can be specifically set according to the specific number of inner liner 20s. By using the integrated base 40 provided in this embodiment of the invention, the position of the injection port 111 can be arranged without considering whether it will affect the installation of the temperature controller 30, and the position setting of the injection port 111 is more flexible.

[0046] Specifically, the integrated base 40 includes a base body 41 and a sealing part 46. The base body 41 covers the top of the injection port 111 and is used to install the temperature controller 30. The sealing part 46 is located at the lower end of the base body 41 and is inserted into the injection port 111 to seal the injection port 111. The base body 41 and the sealing part 46 can be an integrally formed structure; or the base body 41 and the sealing part 46 can be separate structures that are then connected.

[0047] The integrated base 40 and the electrical chamber 11 form a detachable connection. In this embodiment, a hook 47 is provided at the lower end of the base 41. The hook 47 can extend into the injection port 111 and engage with the end of the electrical chamber 11 facing the inner cavity of the housing 10. By providing the hook 47, the integrated base 40 and the electrical chamber 11 are connected, making the connection between the integrated base 40 and the electrical chamber 11 simple, quick, and reliable. Preferably, the sealing part 46 is provided with an avoidance notch 461, and the hook 47 is provided in the avoidance notch 461. When the sealing part 46 is inserted into the injection port 111, the hook 47 can simultaneously engage with the end of the electrical chamber 11 facing the inner cavity of the housing 10, ensuring that the hook 47 engages without affecting the sealing performance of the sealing part 46. Preferably, there are multiple hooks 47, which are distributed at intervals along the circumference of the sealing portion 46. Correspondingly, there are multiple clearance notches 461, which correspond one-to-one with the multiple hooks 47, making the connection between the integrated base 40 and the electrical chamber 11 more secure. More preferably, the sealing portion 46 has a hollow cavity, and the clearance notches 461 are connected to the hollow cavity. This saves material and provides space for the deformation of the hooks 47.

[0048] The cross-section of the injection port 111 is polygonal, meaning the injection port 111 is a polygonal opening. Correspondingly, the cross-section of the sealing part 46 is also polygonal, and the shape of the sealing part 46 matches that of the injection port 111. By setting the cross-sections of both the injection port 111 and the sealing part 46 to polygonal shapes, the sealing part 46 can be positioned to prevent the integrated base 40 from rotating. In this embodiment, the cross-sections of both the injection port 111 and the sealing part 46 are rectangular, but this is not a limitation. Alternatively, a limiting structure can be provided between the integrated base 40 and the electrical chamber 11 to restrict the rotation of the integrated base 40.

[0049] A support connection part 42 is provided on the base 41, and the base 31 of the thermostat 30 is supported on and connected to the support connection part 42. In this embodiment, the base 31 of the thermostat 30 is provided with a first connection hole 311, and the support connection part 42 is provided with a second connection hole 421. A connector connects the base 31 of the thermostat 30 to the support connection part 42 through the first connection hole 311 and the second connection hole 421. Optionally, the connector is a screw, and the second connection hole 421 is a threaded hole. The screw passes through the first connection hole 311 and is threaded into the threaded hole.

[0050] The base 41 is also provided with two first limiting parts 43, which are used to limit the base 31 of the thermostat 30 on both sides along the first direction, so as to improve the stability and reliability of the connection between the thermostat 30 and the support connection part 42. In this embodiment, the two first limiting parts 43 are provided on the support connection part 42 and are integrally formed with the support connection part 42. Alternatively, the two first limiting parts 43 can also be provided on the base 41 and located on both sides of the support connection part 42 along the first direction. In this embodiment, the first direction is the front-rear direction of the housing 10.

[0051] Two second limiting parts 44 are also provided on the base 41. The two second limiting parts 44 are used to limit the base 31 of the thermostat 30 on both sides along the second direction, so as to further improve the stability and reliability of the connection between the thermostat 30 and the support connection part 42. In this embodiment, the two second limiting parts 44 are located on both sides of the support connection part 42 along the second direction. Alternatively, the two second limiting parts 44 can also be provided on the support connection part 42. In this embodiment, the second direction is the vertical direction of the shell 10, that is, the distribution direction of the two inner liner 20. Further, the second limiting part 44 has a pressing part 45, which presses against the upper end of the base 31 of the thermostat 30. The pressing part 45 and the support connection part 42 cooperate to limit the two ends of the base 31 of the thermostat 30 along the vertical direction, so as to further improve the stability and reliability of the connection between the thermostat 30 and the support connection part 42. The second limiting part 44 and the pressing part 45 are integrally formed, forming an inverted L shape. To improve the structural strength of the second limiting part 44 and the pressing part 45, this embodiment also includes reinforcing ribs. The reinforcing ribs are disposed on the second limiting part 44 and the pressing part 45, and the reinforcing ribs are connected to the base body 41.

[0052] The foaming process of the electric water heater provided in this embodiment of the invention is as follows: First, the shell 10 is erected with the end of the shell 10 where the electrical chamber 11 is located facing upwards. Then, the nozzle of the injection gun is used to inject foaming material into the inner cavity of the shell 10 through the injection port 111. After the foaming material is injected, the sealing part 46 of the integrated base 40 is inserted into the injection port 111 to seal the injection port 111. At the same time, the hook 47 is engaged with the end of the electrical chamber 11 facing the inner cavity of the shell 10. Then, the base 31 of the thermostat 30 is placed on the support connection part 42. The position of the thermostat 30 is limited by the action of the first limiting part 43, the second limiting part 44 and the pressing part 45. Finally, the thermostat 30 and the support connection part 42 are fixedly connected by a connector through the first connecting hole 311 on the base 31 of the thermostat 30 and the second connecting hole 421 on the support connection part 42.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An electric water heater, characterized in that, include: Shell (10); An electrical chamber (11) is provided at one end of the housing (10), and the bottom wall of the electrical chamber (11) is provided with an injection port (111) that communicates with the inner cavity of the housing (10); A thermostat (30) is installed in the electrical room (11); An integrated base (40) is used to mount the temperature controller (30) and to seal the injection port (111).

2. The electric water heater according to claim 1, characterized in that, The integrated base (40) includes a base body (41) and a sealing part (46). The base body (41) is placed above the injection port (111) and is used to install the temperature controller (30). The sealing part (46) is located at the lower end of the base body (41) and is inserted into the injection port (111). The sealing part (46) is used to seal the injection port (111).

3. The electric water heater according to claim 2, characterized in that, The lower end of the seat (41) is provided with a hook (47), which can extend into the injection port (111) and engage with the end of the electrical chamber (11) facing the inner cavity of the housing (10).

4. The electric water heater according to claim 3, characterized in that, The sealing part (46) is provided with an avoidance notch (461), and the hook (47) is provided in the avoidance notch (461).

5. The electric water heater according to claim 3, characterized in that, The number of hooks (47) is multiple, and the multiple hooks (47) are distributed at intervals along the circumference of the sealing part (46).

6. The electric water heater according to claim 2, characterized in that, The cross-section of the injection port (111) is polygonal, and the cross-section of the sealing part (46) is polygonal. The shape of the sealing part (46) is adapted to the shape of the injection port (111).

7. The electric water heater according to claim 2, characterized in that, The base (41) is provided with a support connection part (42), and the base (31) of the thermostat (30) is supported on the support connection part (42) and connected to the support connection part (42).

8. The electric water heater according to claim 7, characterized in that, The base (41) is also provided with two first limiting parts (43), which are used to limit the base (31) of the thermostat (30) on both sides along the first direction.

9. The electric water heater according to claim 7, characterized in that, The base (41) is also provided with two second limiting parts (44), which are used to limit the base (31) of the thermostat (30) on both sides along the second direction.

10. The electric water heater according to claim 9, characterized in that, The second limiting part (44) has a pressing part (45), which presses against the upper end of the base (31) of the thermostat (30). The pressing part (45) and the supporting connection part (42) cooperate to limit the two ends of the base (31) of the thermostat (30) in the vertical direction.

11. The electric water heater according to any one of claims 1-10, characterized in that, It also includes two inner liner (20), both of which are disposed inside the housing (10). The filling port (111) and the temperature controller (30) are both located between the two inner liner (20) and are both located at the edge of the electrical chamber (11).

Images