Water heater inner container structure

Abstract

The utility model relates to a kind of water heater inner container structure, belong to water heater field, water heater inner container structure includes: inner container component, the inner container component is at least partly made of plastic, the inner container component is equipped with water storage cavity;Joint component, the joint component is set on the inner container component;Water delivery component, the water delivery component is cooperated with the joint component, the water delivery component is located in the side of the inner container component, the water delivery component is communicated with the water storage cavity;Sealing assembly, the sealing assembly is set on the joint component and / or the water delivery component, the sealing assembly is located between the joint component and the water delivery component.The water heater inner container structure disclosed in the application is independently set on the side of plastic inner container component by water delivery component, and is cooperated with joint component, effectively avoid the structure limitation that water delivery component must be integrated with heating pipe in traditional design, and cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of water heaters, and in particular to a water heater inner tank structure. Background Technology

[0002] In the design of traditional non-metallic inner tank water heaters, due to the limitations in processing non-metallic materials such as plastics, it is difficult to directly form the inlet and outlet pipe holes on the tank body, which means that the water delivery components must be integrated with the heating element. This structure has the following disadvantages: the integrated installation of the water delivery components and the heating element results in a complex structure and high cost, and the long-term stability and reliability of water delivery through the water delivery pipes are poor. Utility Model Content

[0003] Therefore, it is necessary to provide a water heater inner tank structure to address the problems of complex structure, high cost, and poor long-term stability and reliability of water delivery through water pipes caused by the integrated installation of water supply components and heating pipes.

[0004] A water heater inner tank structure includes: an inner tank assembly, at least partially made of plastic, the inner tank assembly having a water storage cavity; a connector assembly disposed on the inner tank assembly; a water supply assembly cooperating with the connector assembly, the water supply assembly being located on the side of the inner tank assembly and communicating with the water storage cavity; and a sealing assembly disposed on the connector assembly and / or the water supply assembly, the sealing assembly being located between the connector assembly and the water supply assembly.

[0005] This application discloses a water heater inner tank structure. By independently mounting the water delivery component on the side of the plastic inner tank assembly and separately fitting it with the connector assembly, it effectively avoids the structural limitations of traditional designs where the water delivery component must be integrated with the heating element. This simplifies the overall assembly structure and improves installation convenience. This design effectively reduces costs, and by replacing the traditional water pipe with the water delivery component, the water delivery is more stable, effectively increasing product reliability. The sealing component, located between the connector assembly and the water delivery component, forms an effective sealing interface, ensuring sealing performance during long-term use, effectively reducing the risk of leakage, and further enhancing product reliability.

[0006] In one embodiment, the inner liner assembly includes a first liner and a second liner, the second liner being disposed on the first liner and located inside the first liner, and the second liner having the water storage cavity. This double-layer design, where the first liner encloses the second liner, enhances the overall mechanical strength of the inner liner assembly, allowing the plastic inner liner to better withstand water pressure and external loads, thus improving durability.

[0007] In one embodiment, the second tank has a concave space, and the water delivery assembly is disposed on the inner tank assembly and located in the concave space. It also includes a reinforcing plate disposed on the second tank and located in the concave space, situated between the first and second tanks. The concave space ensures proper fit and wrapping between the first and second tanks, preventing the outer first tank from failing to completely cover the second tank. The reinforcing plate added to the concave space of the second tank specifically addresses the weakness of insufficient strength in the plastic material at the opening. This design maintains the lightweight advantage of the plastic inner tank while ensuring the load-bearing capacity of the water delivery assembly installation area through localized reinforcement. The reinforcing plate can be a metal component or a high-strength plastic component integrally molded.

[0008] In one embodiment, the second tank is integrally molded. The integral molding process avoids the seams or weak points that may occur with traditional modular assembly, significantly improving the overall strength and sealing of the water storage chamber.

[0009] In one embodiment, the first inner liner is made of a fibrous material. The high strength of the fibrous material gives the first inner liner excellent pressure and impact resistance, effectively enhancing the overall structural stability of the inner liner.

[0010] In one embodiment, the second inner liner is made of plastic. The plastic material of the second inner liner provides corrosion resistance without the need for magnesium rod corrosion protection, thus extending the product's lifespan. The plastic material significantly reduces the weight of the second inner liner, achieving a lightweight overall structure while maintaining functionality.

[0011] In one embodiment, the connector assembly is disposed on the reinforcing plate. The connector assembly may be directly welded to the reinforcing plate, or it may be a component integrally formed with the reinforcing plate.

[0012] In one embodiment, the sealing assembly includes a first sealing structure, which includes a flanged structure disposed on the inner liner assembly between the connector assembly and the water supply assembly. The flanged structure forms an integrated sealing interface on the inner liner assembly, effectively preventing water leakage from the connection between the connector assembly and the water supply assembly. The flanged structure is directly formed on the inner liner assembly, reducing the need for additional seals, lowering assembly complexity, and avoiding the risk of seal failure due to the assembly of multiple parts.

[0013] In one embodiment, the first sealing structure further includes a first sealing element disposed on the water supply assembly. The first sealing element is located between the flanged structure and the water supply assembly, and the first sealing element and the flanged structure are used to seal the gap between the connector assembly and the water supply assembly. The flanged structure and the first sealing element form a double seal, significantly improving the sealing reliability between the connector assembly and the water supply assembly and effectively blocking leakage paths.

[0014] In one embodiment, the sealing assembly includes a second sealing structure, which includes a second sealing element disposed on the connector assembly and / or the water supply assembly, located between the connector assembly and the water supply assembly. The second sealing element forms an independent sealing interface between the connector assembly and the water supply assembly, maintaining a sealing effect and improving system reliability.

[0015] In one embodiment, the inner liner assembly has an assembly port communicating with the water storage chamber. The second seal includes a first sealing portion and a second sealing portion. The first sealing portion is disposed on the connector assembly and / or the water supply assembly, located between the connector assembly and the water supply assembly. The second sealing portion is disposed on the first sealing portion and mates with the assembly port. The first sealing portion achieves a seal between the connector assembly and the water supply assembly, while the second sealing portion, mates with the assembly port to form an additional sealing interface, achieving simultaneous sealing at the connection point and the assembly port, thus improving overall leak-proof performance.

[0016] In one embodiment, the second sealing structure further includes a third sealing element disposed on the water supply assembly. The third sealing element is located between the second sealing element and the water supply assembly, and the second and third sealing elements are used to seal the gap between the connector assembly and the water supply assembly. The combination of the third sealing element and the second sealing element creates a double sealing effect, effectively eliminating the risk of leakage between the connector assembly and the water supply assembly, and significantly improving sealing reliability.

[0017] In one embodiment, the sealing assembly includes a third sealing structure, which comprises a fourth sealing element and a sealing ring. The fourth sealing element is disposed on the connector assembly and / or the water supply assembly, located between the connector assembly and the water supply assembly, and is used to seal the gap between the connector assembly and the water supply assembly. The inner liner assembly has an annular groove, or an annular groove is formed between the inner liner assembly and the fourth sealing element. The sealing ring is disposed on the inner liner assembly and located at the annular groove, located between the inner liner assembly and the fourth sealing element, and is used to seal the gap between the inner liner assembly and the fourth sealing element. The third sealing structure, as a separate sealing component, achieves a reliable seal between the connector assembly, the water supply assembly, and the inner liner assembly through the combination of the fourth sealing element and the sealing ring.

[0018] In one embodiment, there are two connector assemblies, namely a first connector and a second connector, both of which are disposed on the inner liner assembly. There are also two water supply assemblies, namely an inlet assembly and an outlet assembly. The inlet assembly mates with the first connector, and the outlet assembly mates with the second connector. Both the inlet and outlet assemblies are connected to the water storage chamber. By mates between the inlet assembly and the first connector, and between the outlet assembly and the second connector, smooth water input and output functions are achieved.

[0019] In one embodiment, the sealing assembly includes a first sealing structure and a second sealing structure. One of the first and second sealing structures is disposed on the water inlet assembly and located between the water inlet assembly and the first connector, while the other of the first and second sealing structures is disposed on the water outlet assembly and located between the water outlet assembly and the second connector. Either the first or second sealing structure can be selected for targeted sealing optimization. The configuration of the first sealing structure between the water inlet assembly and the first connector, the second sealing structure between the water outlet assembly and the second connector, and vice versa, is within the scope of this application.

[0020] In one embodiment, the sealing assembly includes a second sealing structure and a third sealing structure. One of the second and third sealing structures is disposed on the water inlet assembly and located between the water inlet assembly and the first connector, while the other of the second and third sealing structures is disposed on the water outlet assembly and located between the water outlet assembly and the second connector. Either the second or third sealing structure can be selected for targeted sealing optimization. The configuration of the second sealing structure between the water inlet assembly and the first connector, the third sealing structure between the water outlet assembly and the second connector, and vice versa, is within the scope of this application.

[0021] In one embodiment, the sealing assembly includes a first sealing structure and a third sealing structure. One of the first and third sealing structures is disposed on the water inlet assembly and located between the water inlet assembly and the first connector, while the other of the first and third sealing structures is disposed on the water outlet assembly and located between the water outlet assembly and the second connector. Either the first or third sealing structure can be selected for targeted sealing optimization. The configuration of the first sealing structure between the water inlet assembly and the first connector, the third sealing structure between the water outlet assembly and the second connector, and vice versa, is within the scope of this application. Attached Figure Description

[0022] Figure 1 This is a first perspective view of the structure of the inner tank of a water heater.

[0023] Figure 2 This is a second perspective view of the inner tank structure of a water heater.

[0024] Figure 3 This is the first exploded view of the inner tank structure of a water heater.

[0025] Figure 4 This is a second exploded view of the structure of the inner tank of a water heater.

[0026] Figure 5 A cross-sectional view of the inner tank structure of a water heater according to an embodiment;

[0027] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 for Figure 5 Enlarged view at point B in the middle;

[0029] Figure 8 These are cross-sectional views of the inner tank structure of the water heater in two embodiments;

[0030] Figure 9 for Figure 8 Enlarged view at point C;

[0031] Figure 10 These are cross-sectional views of the inner tank structure of the water heater in three embodiments;

[0032] Figure 11 for Figure 10 Enlarged view at point D;

[0033] Figure 12 This is a 3D view of the water inlet assembly;

[0034] Figure 13 A cross-sectional view of the water inlet assembly and the first connector;

[0035] Figure 14 A 3D view of the water outlet assembly;

[0036] Figure 15 A cross-sectional view of the water outlet assembly and the second connector;

[0037] Figure 16 This is an exploded view of the inner liner assembly and reinforcing plate.

[0038] The correspondence between the reference numerals and the component names is as follows:

[0039] 1 Inner tank assembly, 11 First tank body, 12 Second tank body, 101 Water storage cavity, 102 Recessed space, 103 Assembly port, 104 Sealing groove;

[0040] 2 connector assembly, 21 first connector, 22 second connector;

[0041] 3. Water supply assembly, 31. Water inlet assembly, 32. Water outlet assembly;

[0042] 4 sealing components, 41 first sealing structure, 411 flange structure, 412 first sealing element, 42 second sealing structure, 421 second sealing element, 4211 first sealing part, 4212 second sealing part, 422 third sealing element, 43 third sealing structure, 431 fourth sealing element, 432 sealing ring.

[0043] 5. Reinforcing plates. Detailed Implementation

[0044] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0045] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0046] Example 1

[0047] like Figure 1-16 As shown, this embodiment discloses a water heater inner tank structure, including: an inner tank assembly 1, which is at least partially made of plastic and has a water storage cavity 101; a connector assembly 2, which is disposed on the inner tank assembly 1; a water supply assembly 3, which cooperates with the connector assembly 2, is located on the side of the inner tank assembly 1, and communicates with the water storage cavity 101; and a sealing assembly 4, which is disposed on the connector assembly 2 and / or the water supply assembly 3, and is located between the connector assembly 2 and the water supply assembly 3.

[0048] This application discloses a water heater inner tank structure. By independently setting the water supply component 3 on the side of the plastic inner tank component 1 and separately fitting it with the connector component 2, it effectively avoids the structural limitation of the traditional design where the water supply component 3 must be integrated with the heating element, simplifying the overall assembly structure and improving installation convenience. This design can effectively reduce costs, and by replacing the traditional water supply pipe with the water supply component 3, the water supply is more stable, effectively increasing product reliability. The sealing component 4, located between the connector component 2 and the water supply component 3, forms an effective sealing interface, ensuring sealing performance during long-term use, effectively reducing the risk of leakage, and further improving product reliability.

[0049] like Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner liner assembly 1 includes a first liner 11 and a second liner 12, the second liner 12 is disposed on the first liner 11 and located inside the first liner 11, and the second liner 12 is provided with the water storage cavity 101. The double-layer design of the first liner 11 wrapping the second liner 12 enhances the overall mechanical strength of the inner liner assembly 1, enabling the plastic inner liner to better withstand water pressure and external loads, thus improving durability.

[0050] like Figure 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second tank 12 is provided with a concave space 102, the water supply component 3 is disposed on the inner tank component 1 and located in the concave space 102, and a reinforcing plate 5 is also included. The reinforcing plate 5 is disposed on the second tank 12 and located in the concave space 102, and the reinforcing plate 5 is located between the first tank 11 and the second tank 12. The concave space 102 provides a guarantee for the fit and wrapping of the first tank 11 and the second tank 12, avoiding the problem that the outer first tank 11 cannot completely cover the second tank 12. The reinforcing plate 5 is added to the concave space 102 of the second tank 12 to specifically reinforce the weakness of insufficient strength of the plastic material at the opening. This design maintains the lightweight advantage of the plastic inner tank and ensures the load-bearing capacity of the water supply component 3 installation area through local reinforcement. The reinforcing plate 5 can be a metal part or a high-strength plastic part integrally molded.

[0051] In addition to the features of the above embodiments, this embodiment further specifies that the second tank 12 is integrally formed. The second tank 12 adopts an integral forming process, which avoids the seams or weak points that may occur in traditional split splicing, and significantly improves the overall strength and sealing performance of the water storage cavity 101.

[0052] In addition to the features of the above embodiments, this embodiment further specifies that the first inner liner 11 is made of fibrous material. The high strength of the fibrous material gives the first inner liner 11 excellent pressure and impact resistance, effectively enhancing the overall structural stability of the inner liner.

[0053] In addition to the features of the above embodiments, this embodiment further specifies that the second inner liner 12 is made of plastic material. The plastic material of the second inner liner 12 allows the inner liner to have anti-corrosion properties without requiring magnesium rods for corrosion protection, thus extending the product's lifespan. The plastic material significantly reduces the weight of the second inner liner 12, achieving a lightweight overall structure while maintaining functionality.

[0054] like Figure 6-7 , Figure 9 and Figure 11 As shown, in addition to the features of the above embodiments, this embodiment further specifies that the connector assembly 2 is disposed on the reinforcing plate 5. The connector assembly 2 may be directly welded to the reinforcing plate 5, or it may be a component integrally formed with the reinforcing plate 5.

[0055] Example 2

[0056] like Figure 5-7As shown, the sealing assembly 4 includes a first sealing structure 41, which includes a flange structure 411. The flange structure 411 is disposed on the inner liner assembly 1 and is located between the connector assembly 2 and the water supply assembly 3. The flange structure 411 forms an integrated sealing interface on the inner liner assembly 1, effectively preventing water leakage from the connection between the connector assembly 2 and the water supply assembly 3. The flange structure 411 is directly formed on the inner liner assembly 1, reducing the use of additional seals, lowering assembly complexity, and avoiding the risk of seal failure caused by the assembly of multiple parts.

[0057] like Figure 5-7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first sealing structure 41 also includes a first sealing element 412, the first sealing element 412 is disposed on the water supply assembly 3, the first sealing element 412 is located between the flange structure 411 and the water supply assembly 3, and the first sealing element 412 and the flange structure 411 are used to seal the gap between the connector assembly 2 and the water supply assembly 3. The flange structure 411 and the first sealing element 412 form a double seal, significantly improving the sealing reliability between the connector assembly 2 and the water supply assembly 3, and effectively blocking leakage paths.

[0058] Example 3

[0059] like Figure 8-9 As shown, the sealing assembly 4 includes a second sealing structure 42, which includes a second sealing element 421. The second sealing element 421 is disposed on the connector assembly 2 and / or the water supply assembly 3, and is located between the connector assembly 2 and the water supply assembly 3. The second sealing element 421 forms an independent sealing interface between the connector assembly 2 and the water supply assembly 3, maintaining a sealing effect and improving system reliability.

[0060] like Figure 8-9 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the inner liner assembly 1 is provided with an assembly port 103 communicating with the water storage chamber 101; the second sealing member 421 includes a first sealing part 4211 and a second sealing part 4212; the first sealing part 4211 is disposed on the connector assembly 2 and / or the water supply assembly 3, and is located between the connector assembly 2 and the water supply assembly 3; the second sealing part 4212 is disposed on the first sealing part 4211, and cooperates with the assembly port 103. The first sealing part 4211 achieves a seal between the connector assembly 2 and the water supply assembly 3; the second sealing part 4212 cooperates with the assembly port 103 to form an additional sealing interface, achieving synchronous sealing of the connection and the assembly port 103, thus improving the overall leak-proof performance.

[0061] like Figure 8-9 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second sealing structure 42 also includes a third sealing element 422, which is disposed on the water supply assembly 3 and located between the second sealing element 421 and the water supply assembly 3. The second sealing element 421 and the third sealing element 422 are used to seal the gap between the connector assembly 2 and the water supply assembly 3. The third sealing element 422, together with the second sealing element 421, forms a double sealing effect, effectively eliminating the risk of leakage between the connector assembly 2 and the water supply assembly 3, and significantly improving sealing reliability.

[0062] Example 4

[0063] like Figure 10-11 As shown, the sealing assembly 4 includes a third sealing structure 43, which includes a fourth sealing element 431 and a sealing ring 432. The fourth sealing element 431 is disposed on the connector assembly 2 and / or the water supply assembly 3, and is located between the connector assembly 2 and the water supply assembly 3. The fourth sealing element 431 is used to seal the gap between the connector assembly 2 and the water supply assembly 3. The inner liner assembly 1 is provided with an annular groove 104 or an annular groove 104 is formed between the inner liner assembly 1 and the fourth sealing element 431. The sealing ring 432 is disposed on the inner liner assembly 1 and located at the annular groove 104, and is located between the inner liner assembly 1 and the fourth sealing element 431. The sealing ring 432 is used to seal the gap between the inner liner assembly 1 and the fourth sealing element 431. The third sealing structure 43, as a separate sealing component, achieves a reliable seal between the connector assembly 2, the water supply assembly 3, and the inner liner assembly 1 through the combination of the fourth sealing element 431 and the sealing ring 432.

[0064] Example 5

[0065] like Figure 5-11As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the number of connector assemblies 2 is two, namely a first connector 21 and a second connector 22, both of which are disposed on the inner liner assembly 1; the number of water supply assemblies 3 is two, namely a water inlet assembly 31 and a water outlet assembly 32, wherein the water inlet assembly 31 cooperates with the first connector 21, and the water outlet assembly 32 cooperates with the second connector 22; both the water inlet assembly 31 and the water outlet assembly 32 are connected to the water storage chamber 101. By cooperating with the first connector 21 and the second connector 22, smooth water input and output functions can be achieved.

[0066] In addition to the features of the above embodiments, this embodiment further specifies that: the sealing assembly 4 includes a first sealing structure 41 and a second sealing structure 42, one of the first sealing structure 41 and the second sealing structure 42 is disposed on the water inlet assembly 31 and located between the water inlet assembly 31 and the first connector 21, and the other of the first sealing structure 41 and the second sealing structure 42 is disposed on the water outlet assembly 32 and located between the water outlet assembly 32 and the second connector 22. The first sealing structure 41 or the second sealing structure 42 can be selected for targeted sealing optimization. The cases where the first sealing structure 41 is between the water inlet assembly 31 and the first connector 21, the second sealing structure 42 is between the water outlet assembly 32 and the second connector 22, and the reverse arrangements are within the scope of protection of this application.

[0067] Example 6

[0068] The sealing assembly 4 includes a second sealing structure 42 and a third sealing structure 43. One of the second sealing structure 42 and the third sealing structure 43 is disposed on the water inlet assembly 31 and located between the water inlet assembly 31 and the first connector 21. The other of the second sealing structure 42 and the third sealing structure 43 is disposed on the water outlet assembly 32 and located between the water outlet assembly 32 and the second connector 22. Either the second sealing structure 42 or the third sealing structure 43 can be selected for targeted sealing optimization. The configuration of the second sealing structure 42 between the water inlet assembly 31 and the first connector 21, the third sealing structure 43 between the water outlet assembly 32 and the second connector 22, and the reverse configuration are within the scope of protection of this application.

[0069] Example 7

[0070] The sealing assembly 4 includes a first sealing structure 41 and a third sealing structure 43. One of the first sealing structure 41 and the third sealing structure 43 is disposed on the water inlet assembly 31 and located between the water inlet assembly 31 and the first connector 21. The other of the first sealing structure 41 and the third sealing structure 43 is disposed on the water outlet assembly 32 and located between the water outlet assembly 32 and the second connector 22. Either the first sealing structure 41 or the third sealing structure 43 can be selected for targeted sealing optimization. The cases where the first sealing structure 41 is located between the water inlet assembly 31 and the first connector 21, the third sealing structure 43 is located between the water outlet assembly 32 and the second connector 22, and the reverse arrangements are within the scope of protection of this application.

[0071] In summary, since the first sealing structure 41 is located between the water supply assembly 3 and the connector assembly 2, the first sealing structure 41 is also within the protection scope of this application when it is between the water inlet assembly 31 and the first connector 21, and between the water outlet assembly 32 and the second connector 22. The same applies to the second sealing structure 42 and the third sealing structure 43. There are nine possible distribution configurations.

[0072] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A water heater inner tank structure, characterized in that, include: The inner liner assembly (1) is at least partially made of plastic and has a water storage cavity (101). A connector assembly (2) is disposed on the inner liner assembly (1); Water delivery assembly (3), which cooperates with the connector assembly (2), the water delivery assembly (3) is located on the side of the inner tank assembly (1), and the water delivery assembly (3) is connected to the water storage chamber (101); A sealing assembly (4) is disposed on the connector assembly (2) and / or the water supply assembly (3), and the sealing assembly (4) is located between the connector assembly (2) and the water supply assembly (3).

2. The water heater inner tank structure according to claim 1, characterized in that, The inner liner assembly (1) includes a first liner (11) and a second liner (12). The second liner (12) is disposed on the first liner (11) and located inside the first liner (11). The second liner (12) is provided with the water storage cavity (101).

3. The water heater inner tank structure according to claim 2, characterized in that, The second tank (12) is provided with a concave space (102), the water conveying component (3) is disposed on the inner tank component (1) and located in the concave space (102), and also includes a reinforcing plate (5), the reinforcing plate (5) is disposed on the second tank (12) and located in the concave space (102), and the reinforcing plate (5) is located between the first tank (11) and the second tank (12); And / or the second bladder (12) is integrally formed; And / or the first gallbladder (11) is made of fibrous material; And / or the second chamber (12) is made of plastic material; And / or the joint assembly (2) is disposed on the reinforcing plate (5).

4. The water heater inner tank structure according to claim 1, characterized in that, The sealing assembly (4) includes a first sealing structure (41), which includes a flange structure (411) disposed on the inner liner assembly (1) and located between the connector assembly (2) and the water supply assembly (3).

5. The water heater inner tank structure according to claim 4, characterized in that, The first sealing structure (41) further includes a first sealing element (412), which is disposed on the water supply assembly (3). The first sealing element (412) is located between the flange structure (411) and the water supply assembly (3). The first sealing element (412) and the flange structure (411) are used to seal the gap between the connector assembly (2) and the water supply assembly (3).

6. The water heater inner tank structure according to claim 1, characterized in that, The sealing assembly (4) includes a second sealing structure (42), the second sealing structure (42) includes a second sealing element (421), the second sealing element (421) is disposed on the connector assembly (2) and / or the water supply assembly (3), and the second sealing element (421) is located between the connector assembly (2) and the water supply assembly (3).

7. The water heater inner tank structure according to claim 6, characterized in that, The inner liner assembly (1) is provided with an assembly port (103) communicating with the water storage chamber (101). The second sealing member (421) includes a first sealing part (4211) and a second sealing part (4212). The first sealing part (4211) is disposed on the connector assembly (2) and / or the water supply assembly (3). The first sealing part (4211) is located between the connector assembly (2) and the water supply assembly (3). The second sealing part (4212) is disposed on the first sealing part (4211). The second sealing part (4212) cooperates with the assembly port (103). And / or the second sealing structure (42) further includes a third seal (422) disposed on the water supply assembly (3), the third seal (422) being located between the second seal (421) and the water supply assembly (3), the second seal (421) and the third seal (422) being used to seal the gap between the connector assembly (2) and the water supply assembly (3).

8. The water heater inner tank structure according to claim 1, characterized in that, The sealing assembly (4) includes a third sealing structure (43), which includes a fourth sealing element (431) and a sealing ring (432). The fourth sealing element (431) is disposed on the connector assembly (2) and / or the water supply assembly (3), and is located between the connector assembly (2) and the water supply assembly (3). The fourth sealing element (431) is used to seal the gap between the connector assembly (2) and the water supply assembly (3). The inner liner assembly (1) is provided with an annular groove (104) or an annular groove (104) is formed between the inner liner assembly (1) and the fourth seal (431). The sealing ring (432) is disposed on the inner liner assembly (1) and located at the annular groove (104). The sealing ring (432) is located between the inner liner assembly (1) and the fourth seal (431). The sealing ring (432) is used to seal the gap between the inner liner assembly (1) and the fourth seal (431).

9. The water heater inner tank structure according to claim 1, characterized in that, The number of connector assemblies (2) is two, namely a first connector (21) and a second connector (22). Both the first connector (21) and the second connector (22) are disposed on the inner liner assembly (1). The number of water supply assemblies (3) is two, namely a water inlet assembly (31) and a water outlet assembly (32). The water inlet assembly (31) cooperates with the first connector (21), and the water outlet assembly (32) cooperates with the second connector (22). Both the water inlet assembly (31) and the water outlet assembly (32) are connected to the water storage chamber (101).

10. The water heater inner tank structure according to claim 9, characterized in that, The sealing assembly (4) includes a first sealing structure (41) and a second sealing structure (42). One of the first sealing structure (41) and the second sealing structure (42) is disposed on the water inlet assembly (31) and located between the water inlet assembly (31) and the first connector (21). The other of the first sealing structure (41) and the second sealing structure (42) is disposed on the water outlet assembly (32) and located between the water outlet assembly (32) and the second connector (22). Alternatively, the sealing assembly (4) may include a second sealing structure (42) and a third sealing structure (43), one of which is disposed on the water inlet assembly (31) and located between the water inlet assembly (31) and the first connector (21), and the other of which is disposed on the water outlet assembly (32) and located between the water outlet assembly (32) and the second connector (22); Alternatively, the sealing assembly (4) may include a first sealing structure (41) and a third sealing structure (43), one of which is disposed on the water inlet assembly (31) and located between the water inlet assembly (31) and the first connector (21), and the other of which is disposed on the water outlet assembly (32) and located between the water outlet assembly (32) and the second connector (22).

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