Electric water heater assembly and electric water heater

Abstract

The utility model relates to the technical field of electric water heater equipment, and provides an electric water heater assembly and an electric water heater, and the electric water heater assembly comprises an inner container and a water nozzle. Wherein the inner container is provided with a containing cavity; the inner container comprises a carbon steel layer and a stainless steel layer, the stainless steel layer forms a containing cavity, and the stainless steel layer is coated with the carbon steel layer. According to the electric water heater assembly, the inner container of the electric water heater is made of the stainless steel layer and the carbon steel layer, the stainless steel layer forms the containing cavity of the inner container, the carbon steel layer wraps the stainless steel layer, water in the containing cavity cannot make contact with the carbon steel layer, the carbon steel layer can be prevented from being corroded and rusted, and the corrosion resistance of the inner container is greatly improved; potential safety hazards such as water leakage are eliminated; and an enamel layer can be avoided, so that the manufacturing cost of the inner container is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric water heater equipment technical field, concretely relates to a kind of electric water heater assembly and electric water heater. BACKGROUND

[0002] Electric water heater refers to the water heater that uses electricity as energy to heat up.It is one of the three major water heaters, along with gas water heater and solar water heater.Electric water heater can be divided into storage type (also known as volume type or heat storage type), instant type and fast heating type according to heating power.

[0003] In order to prevent the inner container of the electric water heater from being corroded and rusted, a carbon steel plate is usually used as the outer layer of the inner container (i.e., the carbon steel plate layer), and then an enamel coating is used to form the inner layer of the inner container (i.e., the enamel layer). The enamel layer directly contacts the water inside the inner container, which can prevent the water from contacting the carbon steel plate and causing the carbon steel plate layer to corrode and rust.

[0004] However, in the related anti-corrosion and anti-rust technology of electric water heaters, the thermal expansion and contraction of the inner container can cause the enamel layer to easily fall off, and the carbon steel plate layer of the inner container can be exposed to form a corrosion cell with other steel plates of the inner container that are perfectly coated with the enamel layer, which accelerates the corrosion of the exposed carbon steel plate layer and poses a safety hazard such as water leakage. Moreover, the production of the enamel layer requires processes such as pretreatment of the surface of the carbon steel plate layer, preparation of enamel powder, electrostatic spraying, and high-temperature sintering, which are complex and result in high manufacturing costs of the inner container. SUMMARY

[0005] In view of the above-mentioned defects of the prior art, the utility model provides an electric water heater assembly to solve at least one of the above-mentioned technical defects in the prior art, so that the outer layer of the inner container (i.e., the carbon steel plate layer) is not easily corroded and rusted, the safety hazard such as water leakage is eliminated, and the manufacturing cost is reduced.

[0006] The utility model provides an electric water heater.

[0007] In order to achieve the purpose of the utility model, the utility model provides an electric water heater assembly, which comprises:

[0008] The inner container is provided with a containing cavity,

[0009] The inner container comprises a carbon steel layer and a stainless steel layer, the stainless steel layer forms the containing cavity, and the carbon steel layer is coated outside the stainless steel layer.

[0010] Preferably, the water nozzle is detachably connected to the inner container.

[0011] Preferably, the water nozzle is detachably connected to the inner container.

[0012] Preferably, the inner container comprises a left end cover, a barrel body and a right end cover connected in sequence,

[0013] The water nozzle is arranged on the barrel body, and the water nozzle comprises a water inlet nozzle and a water outlet nozzle.

[0014] Preferably, the barrel body is further provided with a sewage outlet.

[0015] Preferably, one end of the water nozzle connected with the barrel body is provided with a bevel.

[0016] Preferably, the water nozzle is installed on the barrel body through rotary friction welding.

[0017] Preferably, the thickness of the carbon steel layer is 1mm to 2mm.

[0018] Preferably, the thickness of the stainless steel layer is 0.2mm to 1mm.

[0019] The second aspect of the utility model provides a electric water heater, including above-mentioned electric water heater subassembly and electric water heater system,

[0020] The electric water heater system is connected with the electric water heater subassembly.

[0021] The electric water heater subassembly provided by the utility model has the advantages that the inner container of the electric water heater is made of a stainless steel layer and a carbon steel layer, the stainless steel layer forms a containing cavity of the inner container, the carbon steel layer is coated outside the stainless steel layer, water in the containing cavity cannot contact the carbon steel layer, the carbon steel layer can be prevented from rusting, the corrosion resistance of the inner container is greatly improved, and safety hazards such as water leakage are eliminated.

[0022] The electric water heater provided by the utility model has all the advantages of the electric water heater subassembly, that is, the inner container of the electric water heater is made of a stainless steel layer and a carbon steel layer, the stainless steel layer forms a containing cavity of the inner container, the carbon steel layer is coated outside the stainless steel layer, water in the containing cavity cannot contact the carbon steel layer, the carbon steel layer can be prevented from rusting, the corrosion resistance of the inner container is greatly improved, and safety hazards such as water leakage are eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. In the drawings like reference numerals refer to like elements throughout. The embodiments of the present application, while the best mode contemplated, are presented as examples only not limitation and are not intended to reflect all of the desirable features of the application.

[0024] Figure 1 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0025] Figure 2 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure. Figure 1 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0026] Figure 3 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0027] Figure 4 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0028] Figure 5 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0029] Figure 6 A structure schematic view of the electric water heater assembly provided by the embodiment of the present application is shown in the figure.

[0030] In the figure:

[0031] 100, inner container; 110, containing cavity; 120, carbon steel layer; 130, stainless steel layer; 140, left end cover; 150, barrel body; 151, water inlet; 152, water outlet; 153, sewage outlet; 160, right end cover;

[0032] 200, water nozzle; 201, bevel; 210, water inlet nozzle; 220, water outlet nozzle. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings.

[0034] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated as a whole, or a middle element can exist at the same time. The terms "mounting", "one end", "the other end" and similar expressions used herein are only for illustrative purposes.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] The embodiments of the present application will be described below in conjunction with Figures 1 to 6 The embodiments of the present application will be described below in conjunction with The embodiments of the present application will be described below in conjunction with

[0037] In combination Figures 1 to 6 The electric water heater assembly provided by the embodiment of the present application comprises an inner container 100 and a water nozzle 200.

[0038] The inner container 100 is provided with a containing cavity 110, and water can be stored in the containing cavity 110.

[0039] The inner container 100 comprises a carbon steel layer 120 and a stainless steel layer 130. The stainless steel layer 130 can form the containing cavity 110 through concave formation, and the carbon steel layer 120 is coated outside the stainless steel layer 130. The stainless steel layer 130 can isolate the water stored in the containing cavity 110 from the carbon steel layer 120, and can prevent the carbon steel layer 120 from being corroded by water. That is, the stainless steel layer 130 is the inner layer of the inner container 100, the carbon steel layer 120 is the outer layer of the inner container 100, and the carbon steel layer 120 and the stainless steel layer 130 form a composite board.

[0040] It can be understood that the electric water heater assembly provided by the embodiment of the present application is made of the stainless steel layer 130 and the carbon steel layer 120 to form the inner container 100 of the electric water heater. The stainless steel layer 130 forms the containing cavity 110 of the inner container 100, and the carbon steel layer 120 is coated outside the stainless steel layer 130, so that the water in the containing cavity 110 cannot contact the carbon steel layer 120. The carbon steel layer 120 can be prevented from being corroded, the corrosion resistance of the inner container 100 is greatly improved, and the safety hazards such as water leakage are eliminated. Moreover, the enamel layer can also be avoided, and the manufacturing cost of the inner container is saved.

[0041] In combination Figure 1 , Figure 3 and Figure 6 In some embodiments of the present application, the water nozzle 200 is also included. The water nozzle 200 is connected to the containing cavity 110 and the outside world, and the water nozzle 200 can also be made of stainless steel material. When the water nozzle 200 is connected to the containing cavity 110 of the inner container 100, the connection between the water nozzle 200 and the inner container 100 will not be corroded, and the water leakage of the electric water heater assembly is further prevented.

[0042] In order to facilitate the replacement and installation of the water nozzle 200, in some embodiments of the present application, the water nozzle 200 and the inner container 100 can be detachably connected. For example, an inner thread is arranged at the inner container 100, an outer thread is arranged at the water nozzle 200, and the assembly is connected through the thread connection.

[0043] Specifically, in some embodiments of the present application, the inner container 100 comprises a left end cover 140, a barrel body 150 and a right end cover 160 connected in sequence.

[0044] The water nozzle 200 is arranged on the barrel body 150, the water nozzle 200 comprises a water inlet nozzle 210 and a water outlet nozzle 220, the barrel body 150 is provided with a water inlet 151 and a water outlet 152, the water inlet nozzle 210 is arranged on the water inlet 151, and the water outlet nozzle 220 is arranged on the water outlet 152. It is convenient to supplement water to the inner container 100 through an external water pipe and to drain water from the inner container 100, so that the electric water heater function is realized.

[0045] In addition, in order to facilitate cleaning of the inner container 100, in some embodiments of the utility model, the barrel body 150 is further provided with a sewage outlet 153.

[0046] In some embodiments of the utility model, the water nozzle 200 is installed on the barrel body 150 through rotary friction welding, so that the inner container 100 and the water nozzle 200 are in contact with stainless steel during work, the corrosion resistance of the connection between the water nozzle 200 and the inner container 100 can be greatly improved, and the whole circle of the water nozzle 200 is welded with the corresponding stainless steel layer 130 and carbon steel layer 120. Moreover, the end, connected with the barrel body 150, of the water nozzle 200 is provided with a bevel 201, facilitating rotary friction welding between the water nozzle 200 and the barrel body 150.

[0047] In some embodiments of the utility model, in order to reduce the manufacturing cost of the electric water heater assembly and improve its mechanical properties, the thickness of the carbon steel layer 120 can be 1mm to 2mm, for example, the thickness of the carbon steel layer 120 is 1.5mm, and SPCC (cold rolled steel plate) or SPHC material (hot rolled steel plate) material is adopted.

[0048] In order to improve the corrosion resistance of the electric water heater assembly, the thickness of the stainless steel layer 130 can be 0.2mm to 1mm, for example, the thickness of the stainless steel layer 130 is 0.5mm, and SUS304, SUS316L or SUS201 material is adopted.

[0049] In combination Figures 1 to 6 , the embodiment of the utility model further provides an electric water heater, which comprises the above-mentioned electric water heater assembly and electric water heater system.

[0050] The electric water heater system is connected with the electric water heater assembly to control the electric water heater assembly to work.

[0051] It can be understood that the electric water heater provided by the embodiment of the utility model includes the electric water heater assembly, and certainly has all the advantages of the electric water heater assembly, that is, the electric water heater is made of the stainless steel layer 130 and the carbon steel layer 120 to form the inner container 100 of the electric water heater, the stainless steel layer 130 forms the containing cavity 110 of the inner container 100, the carbon steel layer 120 is coated outside the stainless steel layer 130, and the water in the containing cavity 110 cannot contact the carbon steel layer 120, the carbon steel layer 120 is prevented from being corroded and rusted, the corrosion resistance of the inner container 100 is greatly improved, and the safety hazards such as water leakage are eliminated; and the enamel layer can be avoided, and the manufacturing cost of the inner container is saved.

[0052] In this specification, unless otherwise expressly specified and limited, a first feature being "on", "above", or "under" a second feature can mean that the first and second features are directly in contact, or that the first and second features are indirectly in contact through an intermediate medium.

[0053] In the description of the specification, the description of the terms "preferred embodiment", "further embodiment", "some embodiments", "other embodiments" or "specific examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An electric water heater assembly, characterized in that, include: The inner liner has a receiving cavity. The inner liner includes a carbon steel layer and a stainless steel layer, the stainless steel layer forming the receiving cavity, and the carbon steel layer covering the stainless steel layer.

2. The electric water heater assembly as described in claim 1, characterized in that, It also includes a water tap, which connects the receiving cavity to the outside, and the water tap is made of stainless steel.

3. The electric water heater assembly as described in claim 2, characterized in that, The faucet is detachably connected to the inner tank.

4. The electric water heater assembly as described in claim 2, characterized in that, The inner liner comprises a left end cap, a barrel body, and a right end cap connected in sequence. The water nozzle is located on the barrel body. The water nozzle includes an inlet and an outlet. The barrel body is provided with an inlet and an outlet. The inlet is located at the inlet and the outlet is located at the outlet.

5. The electric water heater assembly as described in claim 4, characterized in that, The barrel is also equipped with a drain outlet.

6. The electric water heater assembly as described in claim 4, characterized in that, The end of the water nozzle that connects to the barrel body is provided with a bevel.

7. The electric water heater assembly as described in claim 4, characterized in that, The water nozzle is installed on the barrel body by rotary friction welding.

8. The electric water heater assembly as claimed in claim 1, characterized in that, The thickness of the carbon steel layer is 1 mm to 2 mm.

9. The electric water heater assembly as claimed in claim 1, characterized in that, The thickness of the stainless steel layer is 0.2 mm to 1 mm.

10. An electric water heater, characterized in that, Including the electric water heater assembly and electric water heater system as described in any one of claims 1 to 9, The electric water heater system is connected to the electric water heater assembly.

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