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Electric water heater

An electric water heater and shell technology, which is applied in the field of electric water heaters, can solve the problems of poor corrosion resistance, affecting the overall aesthetics of the water heater, and unevenness of the shell, and achieve the effect of avoiding unevenness.

Pending Publication Date: 2021-08-13
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the inner pots used in traditional electric water heaters are made of stainless steel or enamel. These types of inner pots meet the pressure-bearing requirements, but they have problems of low insulation coefficient, poor anti-corrosion ability, and processing costs.
[0003] In response to the above problems, non-metallic liners (such as plastic liners) have begun to replace stainless steel metal or enamel liners on the market. Non-metallic liners have the advantages of good corrosion resistance, long service life, high insulation coefficient, and low processing costs. Due to the high thermal expansion coefficient of the non-metallic liner, the non-metallic liner will expand and deform when the water in it is heated. Since the plastic liner and the shell of the water heater are filled with foam material, when the plastic liner When the bladder expands and deforms, the plastic liner expands and exerts force on the shell, making the shell uneven and "bulging", which affects the overall aesthetics of the water heater, and even damages the shell, affecting user safety

Method used

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  • Electric water heater
  • Electric water heater
  • Electric water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides an electric water heater, such as figure 1 As shown, it includes a shell 1, a non-metallic liner 2 and a buffer portion. The non-metallic liner 2 is placed in the shell 1, and the space between the two is filled with foaming material. Preferably, the above-mentioned non-metallic liner 2 can be plastic liner, also can be the liner that other non-metallic materials are made. The buffer part is arranged in the housing 1, which can absorb the expansion force generated by the expansion and deformation of the non-metallic liner 2 when the non-metallic liner 2 expands and deforms, and also counteracts and prevents the expansion and deformation of the non-metallic liner 2. Force is applied to the shell 1, thereby avoiding the unevenness of the shell 1 and preventing the phenomenon of "bulging", so that the electric water heater will not be unsightly due to expansion and deformation of the non-metallic liner 2 .

[0035] In this example, refer to figu...

Embodiment 2

[0041] The difference between the electric water heater provided in this embodiment and the first embodiment is that the structure of the buffer part is different, such as image 3 and Figure 4 As shown, the buffer portion of the electric water heater in this embodiment is a cavity interlayer 32 disposed inside the housing 1, and buffer foam ( Figure 4 shown), when the non-metallic liner 2 expands and deforms, the expansion force of the non-metallic liner 2 is applied to the cavity interlayer 32, and the buffer foam in the cavity interlayer 32 can offset the expansion force, thereby making the shell There will be no unevenness on the outside of the body 1, so that the aesthetics of the electric water heater can be guaranteed.

[0042] It can be understood that the cavity interlayer 32 of this embodiment may not be provided with cushioning foam, but directly provided with vent holes connected to the outside world. When the non-metallic liner 2 expands and deforms, the expans...

Embodiment 3

[0045] The electric water heater provided in this embodiment combines the structure of the buffer part in Embodiment 1 and Embodiment 2, such as Figure 5 and Figure 6 As shown, the buffer portion of the electric water heater of this embodiment includes a buffer plate 31 and a cavity interlayer 32 at the same time, and the buffer plate 31 is arranged between the non-metallic liner 2 and the cavity interlayer 32, when the non-metallic liner 2 expands and deforms At this time, the expansion force of the non-metallic liner 2 is firstly offset by the buffer plate 31. If the expansion force cannot be completely offset by the buffer plate 31 (the buffer plate 31 will also be deformed at this time), the residual expansion force will continue to act on the cavity. The cavity interlayer 32 is to be offset by the cavity interlayer 32. By setting the buffer plate 31 and the cavity interlayer 32 at the same time, it can be further ensured that the expansion and deformation of the non-met...

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PUM

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Abstract

The invention belongs to the technical field of water heaters, and discloses an electric water heater which comprises a shell and a non-metal inner container arranged in the shell. A buffering part is arranged in the shell, and the buffering part is configured to buffer and counteract force applied to the shell by the non-metal inner container due to expansion deformation when the non-metal inner container expands and deforms. The buffering part is arranged in the shell and can absorb and counteract the expansion force generated by the expansion deformation of the non-metal inner container when the non-metal inner container is heated to expand and deform, so that the non-metal inner container is prevented from applying force to the shell due to the expansion deformation, the unevenness of the shell is avoided, and the swelling phenomenon is prevented, so that the electric water heater is not attractive due to expansion and deformation of the non-metal inner container.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an electric water heater. Background technique [0002] Most of the inner pots used in traditional electric water heaters are made of stainless steel or enamel. These types of inner pots meet the pressure-bearing requirements, but they have problems of low insulation coefficient, poor anti-corrosion ability, and processing costs. [0003] In response to the above problems, non-metallic liners (such as plastic liners) have begun to replace stainless steel metal or enamel liners on the market. Non-metallic liners have the advantages of good corrosion resistance, long service life, high insulation coefficient, and low processing costs. Due to the high thermal expansion coefficient of the non-metallic liner, the non-metallic liner will expand and deform when the water in it is heated. Since the plastic liner and the shell of the water heater are filled with foam material, when ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/18F24H9/00F24H9/02
CPCF24H1/185F24H9/0005F24H9/02
Inventor 蔡想周于水生赵小勇郝东东丁建鹏
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER