Liner body assembly and electric water heater

Abstract

The utility model discloses a liner body assembly and an electric water heater, the liner body assembly comprises a liner body, one end of the liner body is provided with a mounting part, and the mounting part is provided with a mounting port; one part of the connecting piece is embedded into the mounting part, and the other part of the connecting piece is located on the outer side of the mounting part; the flange component is arranged at the mounting opening, and a first through hole is formed in the position, corresponding to the connecting piece, of the flange component; wherein the connecting piece penetrates through the first through hole to detachably connect the flange part with the mounting part. The connecting piece is partially embedded into the mounting part, and the part, located on the outer side of the mounting part, of the connecting piece penetrates through the first through hole in the flange part to fixedly connect the flange part with the mounting part, so that the number of connectors of the container body and the flange part is reduced, and the probability of water leakage of the container body is reduced; meanwhile, the flange part is connected with the liner body only through the connecting piece, the assembly process is simple, the difficulty is small, and the labor cost can be reduced.

Description

Technical Field

[0001] This utility model belongs to the field of electric water heater technology, and in particular relates to a tank assembly and an electric water heater. Background Technology

[0002] Water heaters are currently common household appliances, categorized into gas water heaters, electric water heaters, heat pump water heaters, and solar water heaters. Electric water heaters are widely used due to their convenience. An electric water heater typically consists of an inner tank and an electric heater, which is located inside the inner tank to heat the water. The end of the electric heater is usually fixed to a flange at the opening of the inner tank.

[0003] In the prior art, a flange consists of two parts: an internal threaded flange and an external flange. The internal threaded flange is embedded inside the inner liner, and the internal threaded flange is connected to the external flange by threads, thereby realizing the connection between the flange and the inner liner.

[0004] However, the aforementioned structure has a large number of interfaces, increasing the likelihood of leakage from the inner liner. Therefore, the technical problem this invention aims to solve is how to design a method that reduces the number of interfaces connecting the inner liner to the flange, thereby decreasing the likelihood of leakage. Utility Model Content

[0005] This utility model provides a tank assembly and an electric water heater that reduces the number of interfaces connecting the inner tank and the flange, thereby reducing the probability of water leakage from the inner tank.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] In the first aspect, this utility model provides a gallbladder assembly, comprising:

[0008] The gallbladder has a mounting portion at one end, and the mounting portion has a mounting port.

[0009] A connector, a portion of which is embedded in the mounting portion and another portion of which is located on the outside of the mounting portion;

[0010] A flange component is disposed at the mounting port, and a first through hole is formed on the flange component at a position corresponding to the connector;

[0011] The connector passes through the first through hole to detachably connect the flange component to the mounting part.

[0012] In some embodiments of this application, the connector includes:

[0013] A screw, the head of which is embedded in the mounting portion, and the shaft of which extends out of the mounting portion and passes through the first through hole;

[0014] A nut, which is threadedly connected to the screw, secures the flange component to the mounting portion.

[0015] By embedding the head of the screw into the mounting part, the screw is positioned to prevent it from detaching from the mounting part. After the shank of the screw extends out of the mounting part, it passes through the first through hole on the flange component and is connected to the screw by a nut, thereby fixing the flange component to the mounting part.

[0016] In some embodiments of this application, the head of the screw is hexagonal or irregular in shape.

[0017] By setting the head of the screw to a hexagonal or irregular shape, the mounting part can limit the head of the screw, preventing the screw from rotating relative to the mounting part under external force.

[0018] In some embodiments of this application, the connector includes:

[0019] A nut is embedded in the mounting portion, and a second through hole is formed on the mounting portion at a position corresponding to the nut.

[0020] A screw, the shank of which passes sequentially through the first through hole and the second through hole and is threadedly connected to the nut, to fix the flange component to the mounting part.

[0021] By embedding the nut into the mounting part, and providing a second through hole at a position corresponding to the nut on the mounting part, the screw can pass through the first through hole and the second through hole to connect with the nut by thread, thereby fixing the flange component to the mounting part.

[0022] In some embodiments of this application, the nut is a hexagonal nut or a non-circular nut.

[0023] By setting the nut to a hexagonal nut or a non-circular nut, the nut can be limited to prevent it from rotating relative to the mounting part when installing the screw.

[0024] In some embodiments of this application, the wall thickness of the mounting portion is greater than the wall thickness of the bladder body, and the mounting portion and the bladder body are an integral structure.

[0025] By setting the wall thickness of the mounting part to be greater than that of the inner tank, the mounting part is thickened, which improves the connection strength between the connector and the mounting part, while ensuring that the structural strength of the entire inner tank remains unchanged. The mounting part and the inner tank are an integral structure, which reduces the number of joints and helps to improve the structural strength and stability.

[0026] In some embodiments of this application, the gallbladder assembly further includes:

[0027] A sealing gasket is disposed at the mounting opening to seal the gap between the flange component and the mounting portion.

[0028] By placing a sealing gasket at the installation port, the gasket can seal the gap between the flange component and the liner, ensuring a good sealing connection between the flange component and the liner.

[0029] In some embodiments of this application, the gallbladder is prepared by blow molding or injection molding.

[0030] The gallbladder is made by blow molding or injection molding. Blow molding has high production efficiency, low mold manufacturing and maintenance costs, and stable product quality; while injection molding produces products with high dimensional accuracy, high strength, and good wall thickness uniformity.

[0031] In some embodiments of this application, the gallbladder is made of a non-metallic material, and the connector is made of a metallic material.

[0032] By using non-metallic materials to make the gallbladder, the weight can be effectively reduced, and the manufacturing cost can also be reduced.

[0033] In some embodiments of this application, a structural reinforcement layer is further provided outside the gallbladder, and the structural reinforcement layer extends to the mounting port.

[0034] By setting a structural reinforcement layer outside the gallbladder and extending it to the installation port, the overall structural strength of the gallbladder is improved.

[0035] In a second aspect, the present invention provides an electric water heater, including a shell and an inner tank. The shell is provided with an inlet pipe and an outlet pipe. The inner tank adopts a tank assembly as described in any one of the embodiments of the first aspect above. The inner tank is disposed in the shell, and the inlet pipe and the outlet pipe are respectively connected to the inner tank.

[0036] Compared with the prior art, the advantages and positive effects of this utility model are as follows: the tank assembly includes a tank, a connector, and a flange component; one end of the tank has a mounting portion with a mounting port; the connector is partially embedded in the mounting portion, and the portion of the connector located outside the mounting portion passes through the first through hole on the flange component, fixing the flange component to the mounting portion, reducing the number of interfaces between the tank and the flange component, which helps to reduce the probability of tank leakage; at the same time, the flange component is only connected to the tank through the connector, the assembly process is simple and less difficult, which helps to reduce labor costs. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 One of the structural schematic diagrams of an embodiment of the gallbladder assembly provided by this utility model;

[0039] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle;

[0040] Figure 3 One of the partial cross-sectional views of an embodiment of the gallbladder assembly provided by this utility model;

[0041] Figure 4 One exploded view of an embodiment of the gallbladder assembly provided by this utility model;

[0042] Figure 5 A second schematic diagram of the structure of an embodiment of the gallbladder assembly provided by this utility model;

[0043] Figure 6 for Figure 5 A magnified view of a portion of region B in the middle;

[0044] Figure 7 A second partial cross-sectional view of an embodiment of the gallbladder assembly provided by this utility model;

[0045] Figure 8 One of the exploded views of an embodiment of the gallbladder assembly provided by this utility model.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Inner chamber; 11. Mounting part; 111. Second through hole; 12. Mounting port;

[0048] 2. Connecting parts; 21. Screw; 22. Nut;

[0049] 3. Flange assembly; 31. First through hole;

[0050] 4. Sealing gasket; 41. Third through hole. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] 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.

[0055] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0056] An electric water heater is a type of water heater that uses electricity as its primary energy source. The high-temperature heat generated after the power is turned on directly heats the water stored in the water heater to produce hot water.

[0057] Electric water heaters typically consist of a water tank, an electric heating element, and an electronic control board. The water tank has a storage cavity to store water to be heated. The electric heating element is inserted into the storage cavity of the water tank. The electronic control board is used to control the electric heating element to operate by turning the power on and off, so that the water in the tank is heated to the set temperature.

[0058] For the water tank of an electric water heater, the tank generally consists of an outer shell and an inner tank, with an insulation layer between them. The outer shell is usually made of plastic to meet the requirements of aesthetic and diverse designs; the inner tank can be made of metal or plastic, depending on the needs.

[0059] In addition, the insulation layer formed between the outer shell and the inner liner is commonly made of materials such as asbestos, sponge, foam plastic, and polyurethane foam. In conventional technology, foaming is usually used to form the insulation layer in order to achieve good insulation effect.

[0060] For water tanks with metal inner liner, corrosion can easily occur inside due to water quality. Therefore, magnesium rods are installed on the water tank and inserted into the water storage cavity inside the tank.

[0061] Magnesium has the lowest electrochemical potential among metals and is physiologically non-toxic. Therefore, it is ideal for making magnesium rods to protect the inner liner. The size of the magnesium rod directly affects the duration and effectiveness of the protection; the larger the magnesium rod, the better the protection and the longer the protection time.

[0062] The water tank is also equipped with an inlet pipe and an outlet pipe. The inlet pipe is used to deliver cold water into the water storage cavity formed inside the water tank, while the hot water in the water storage cavity is output from the outlet pipe.

[0063] For electric heating components, electric heating methods such as electric heating wires, magnetic energy, or silicon tube heating can be used to heat the water stored in the water storage chamber.

[0064] The control board is used to receive detection signals from relevant sensors (such as water temperature sensors and flow sensors) and control the power supply to and from the electric heating components.

[0065] When the electric water heater is working, the electric control board controls the electric heating element to be powered on and heated. When the water temperature in the tank reaches the set value, the electric control board controls the electric heating element to be powered off.

[0066] In the first aspect, combining Figures 1 to 8 As shown, this embodiment of the present disclosure provides a bladder assembly, which includes a bladder 1, a connector 2, and a flange component 3.

[0067] Combination Figure 1 and Figure 5 As shown, the tank 1 is used to store water, and a mounting part 11 is formed at one end of the tank 1. A mounting port 12 is provided on the mounting part 11.

[0068] Combination Figure 2 and Figure 6 As shown, a portion of the connector 2 is embedded in the mounting portion 11, and the other portion of the connector 2 is located on the outside of the mounting portion 11.

[0069] Flange component 3 is disposed at mounting port 12 and is configured to close mounting port 12. A first through hole 31 is formed on flange component 3 at a position corresponding to connector 2.

[0070] The connector 2 passes through the first through hole 31 to detachably connect the flange component 3 to the mounting part 11.

[0071] Specifically, the tank assembly includes a tank body 1, several connectors 2, and a flange component 3. One end of the tank body 1 has a mounting portion 11, and the mounting portion 11 is provided with a mounting port 12. The connectors 2 are partially embedded in the mounting portion 11, and the portion of the connectors 2 located outside the mounting portion 11 passes through the first through hole 31 on the flange component 3, fixing the flange component 3 to the mounting portion 11. This reduces the number of interfaces between the tank body 1 and the flange component 3, which helps to reduce the probability of leakage of the tank body 1. At the same time, the flange component 3 is only connected to the tank body 1 through the connectors 2, making the assembly process simple and less difficult, which helps to reduce labor costs.

[0072] Specifically, the flange component 3 is detachably connected to the inner body 1 via the connector 2, which makes disassembly convenient and subsequent maintenance relatively easy.

[0073] Specifically, flange component 3 can withstand higher pressure and temperature.

[0074] In some embodiments of this application, combined with Figure 3 and Figure 4 As shown, there are several connectors 2, each connector 2 including a screw 21 and a nut 22.

[0075] The head of the screw 21 is embedded in the mounting part 11, and the shaft of the screw 21 extends out of the mounting part 11 and passes through the first through hole 31.

[0076] Nut 22 is threadedly connected to screw 21 to fix flange component 3 to mounting part 11.

[0077] Specifically, by embedding the head of the screw 21 into the mounting part 11, the head of the screw 21 is wrapped by the mounting part 11, thereby positioning the screw 21 and preventing the screw 21 from detaching from the mounting part 11. After the shank of the screw 21 extends out of the mounting part 11, it passes through the first through hole 31 on the flange component 3 and is threadedly connected to the screw 21 by the nut 22, thereby fixing the flange component 3 to the mounting part 11.

[0078] In some embodiments of this application, the head of the screw 21 is hexagonal or irregular in shape.

[0079] Specifically, by setting the head of the screw 21 to a hexagonal or irregular shape, the mounting part 11 can limit and block the head of the screw 21, thus preventing the screw 21 from rotating relative to the mounting part 11 under external force.

[0080] Of course, the shape of the head of the screw 21 includes, but is not limited to, hexagonal or irregular shapes.

[0081] For example, the head of the screw 21 can be other types such as triangle, quadrilateral, pentagon or trapezoid.

[0082] During the processing, the head of the screw 21 is first placed in a predetermined position, and then the inner tube 1 is shaped so that the head of the screw 21 is embedded in the inner tube 1.

[0083] In some embodiments of this application, combined with Figure 7 and Figure 8 As shown, the connector 2 includes a nut 22 and a screw 21.

[0084] Nut 22 is embedded in mounting part 11. A second through hole 111 is formed on mounting part 11 at a position corresponding to nut 22. The second through hole 111 corresponds one-to-one with the first through hole 31 on flange part 3.

[0085] The rod of the screw 21 passes through the first through hole 31 and the second through hole 111 in sequence and is threadedly connected to the nut 22 to fix the flange component 3 on the mounting part 11.

[0086] Specifically, by embedding the nut 22 into the mounting part 11, a second through hole 111 is provided on the mounting part 11 at a position corresponding to the nut 22, so that the screw 21 can pass through the first through hole 31 and the second through hole 111 and be threadedly connected to the nut 22, thereby fixing the flange component 3 on the mounting part 11.

[0087] During the processing, the nut 22 is first placed in the predetermined position, and then the inner tube 1 is formed. Before forming, the threaded hole in the nut 22 is plugged with filler to prevent the threaded hole from being blocked during the forming process. At the same time, a second through hole 111 is reserved so that the screw 21 can be threadedly connected to the thread later.

[0088] In some embodiments of this application, the nut 22 is a hexagonal nut 22 or an irregularly shaped nut 22.

[0089] Specifically, by setting the nut 22 as a hexagonal nut 22 or an irregular nut 22, the nut 22 is embedded in the mounting part 11. The mounting part 11 can limit and block the nut 22, preventing the nut 22 from rotating relative to the mounting part 11 when the screw 21 is installed.

[0090] Of course, the head shape of nut 22 includes, but is not limited to, hexagonal nut 22 or irregular nut 22.

[0091] For example, nut 22 can be other types such as triangular nut 22, square nut 22, or pentagonal nut 22.

[0092] In some other embodiments of this application, the wall thickness of the mounting part 11 is greater than the wall thickness of the bladder body 1, and the mounting part 11 and the bladder body 1 are an integral structure.

[0093] Specifically, by setting the wall thickness of the mounting part 11 to be greater than the wall thickness of the bladder body 1, the mounting part 11 is thickened, which improves the connection strength between the connector 2 and the mounting part 11, while ensuring that the structural strength of the entire bladder body 1 remains unchanged; the mounting part 11 and the bladder body 1 are an integral structure, which reduces the seams and helps to improve the overall structural strength and stability.

[0094] In some embodiments of this application, a plurality of connectors 2 are arranged at equal intervals on the bladder body 1.

[0095] Specifically, the evenly spaced distribution of the connectors 2 ensures that the flange component 3 and the connection part are subjected to uniform force, further guaranteeing safety and stability.

[0096] In some embodiments of this application, the gallbladder 1 is prepared by blow molding or injection molding.

[0097] Specifically, the gallbladder 1 is prepared by blow molding or injection molding. Blow molding has high production efficiency, low mold manufacturing and maintenance costs, and stable product quality; while injection molding produces products with high dimensional accuracy, high strength, and good wall thickness uniformity.

[0098] In some embodiments of this application, the gallbladder 1 is made of non-metallic material, and the connector 2 is made of metallic material.

[0099] Specifically, by using non-metallic materials to make the inner tube 1, it is easier to process and shape; it can effectively reduce the overall weight, making it easier to transport and install; at the same time, it can also reduce production and manufacturing costs.

[0100] For example, non-metallic materials used in the gallbladder include plastics, ceramics, glass, etc.

[0101] In some embodiments of this application, in order to improve the sealing performance of the flange component 3, it is necessary to seal the contact area formed between the flange component 3 and the inner body 1. Specifically, at the mounting port 12, a sealing gasket 4 is provided between the flange component 3 and the mounting part 11, and the sealing gasket 4 surrounds the outer periphery of the mounting port 12.

[0102] Specifically, by setting a sealing gasket 4 at the mounting port 12, the sealing gasket 4 can seal the gap between the flange component 3 and the liner 1, so that the flange component 3 and the liner 1 have a good sealing connection.

[0103] In some other embodiments of this application, a third through hole 41 is formed on the sealing gasket 4 at a position corresponding to the screw 21, and the third through hole 41 corresponds to the position of the connector 2.

[0104] Specifically, the third through hole 41 on the sealing gasket 4 passes through the screw 21 to position the sealing gasket 4 on the inner body 1, so as to avoid the sealing gasket 4 from shifting or deviating during the installation of the flange component 3.

[0105] Specifically, taking the connector 2, which includes a screw 21 and a nut 22, with the head of the screw 21 embedded in the mounting part 11, as an example, the assembly process of the flange component 3, the sealing gasket 4, and the inner liner 1 is as follows:

[0106] First, align the third through hole 41 on the sealing gasket 4 with the screw 21, so that the sealing gasket 4 passes through the screw 21 and is placed on the mounting part 11 on the bladder body 1.

[0107] Then, align the first through hole 31 on the flange component 3 with the screw 21, so that the flange component 3 passes through the screw 21 and is placed on the mounting part 11 on the inner body 1.

[0108] Finally, align the threaded hole on nut 22 with screw 21 and tighten nut 22.

[0109] During the tightening of nut 22, flange component 3 will gradually approach mounting part 11, thereby pressing gasket 4 between flange component 3 and mounting part 11, sealing the contact area between flange component 3 and mounting part 11, thus preventing leakage of the tank 1.

[0110] Similarly, the connector 2 includes a screw 21 and a nut 22, with the head of the nut embedded in the mounting part 11. The assembly process of the flange component 3, the sealing gasket 4 and the inner body 1 is similar to that described above, and will not be repeated here.

[0111] In some embodiments of this application, a structural reinforcement layer is further provided outside the gallbladder, and the structural reinforcement layer extends to the mounting port.

[0112] Specifically, by setting a structural reinforcement layer on the outside of the bladder body 1, extending the structural reinforcement layer to the mounting opening, and covering the outside of the bladder body 1, the overall structural strength of the bladder body 1 is improved.

[0113] In actual processing, the structural reinforcement layer can be prepared by a winding molding process, for example, by winding fibers around the outside of the gallbladder 1, wherein the fibers used include, but are not limited to, glass fibers, carbon fibers, aramid fibers, and basalt fibers.

[0114] In a second aspect, the present invention provides an electric water heater, including a shell and an inner tank. The shell is provided with an inlet pipe and an outlet pipe. The inner tank adopts a tank assembly as described in any of the embodiments of the first aspect above. The inner tank is disposed in the shell, and the inlet pipe and the outlet pipe are respectively connected to the inner tank.

[0115] Because it includes any of the gallbladder components described in the first aspect embodiment above, it possesses all of its beneficial effects, which will not be elaborated further here.

[0116] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0117] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A gallbladder assembly, characterized in that, include: The gallbladder has a mounting portion at one end, and the mounting portion has a mounting port. A connector, a portion of which is embedded in the mounting portion and another portion of which is located on the outside of the mounting portion; A flange component is disposed at the mounting port, and a first through hole is formed on the flange component at a position corresponding to the connector; The connector passes through the first through hole to detachably connect the flange component to the mounting part.

2. The gallbladder assembly according to claim 1, characterized in that, The connector includes: A screw, the head of which is embedded in the mounting portion, and the shaft of which extends out of the mounting portion and passes through the first through hole; A nut, which is threadedly connected to the screw, secures the flange component to the mounting portion.

3. The gallbladder assembly according to claim 2, characterized in that, The head of the screw has a hexagonal or irregular shape.

4. The gallbladder assembly according to claim 1, characterized in that, The connector includes: A nut is embedded in the mounting portion, and a second through hole is formed on the mounting portion at a position corresponding to the nut. A screw, the shank of which passes sequentially through the first through hole and the second through hole and is threadedly connected to the nut, to fix the flange component to the mounting part.

5. The gallbladder assembly according to claim 4, characterized in that, The nut is a hexagonal nut or an irregularly shaped nut.

6. The gallbladder assembly according to claim 1, characterized in that, The wall thickness of the mounting part is greater than the wall thickness of the bladder body, and the mounting part and the bladder body are an integral structure.

7. The gallbladder assembly according to claim 1, characterized in that, The gallbladder assembly also includes: A sealing gasket is disposed at the mounting opening to seal the gap between the flange component and the mounting portion.

8. The gallbladder assembly according to any one of claims 1 to 7, characterized in that, The bladder body is manufactured using blow molding or injection molding processes.

9. The gallbladder assembly according to any one of claims 1 to 7, characterized in that, The bladder body is made of non-metallic material, while the connector is made of metallic material.

10. The gallbladder assembly according to claim 9, characterized in that, The gallbladder body is further provided with a structural reinforcement layer, which extends to the mounting port.

11. An electric water heater, comprising a shell and an inner tank, wherein the shell is provided with an inlet pipe and an outlet pipe, characterized in that, The inner liner adopts the liner assembly as described in any one of claims 1 to 10 above, the inner liner is disposed in the outer shell, and the water inlet pipe and the water outlet pipe are respectively connected to the inner liner.

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