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Electric water heater

An electric water heater and water inlet technology, which is used in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of high welding difficulty of connecting pipes, unavailability of hot water, and waste of hot water.

Active Publication Date: 2013-08-14
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above two types of electric water heaters have complex structures, and the welding of connecting pipes between multiple inner tanks is difficult. Moreover, the heating components of the instant heating part work in a high-temperature environment for a long time, and the service life is likely to be shortened.
In addition, some hot water cannot be used, resulting in waste of hot water

Method used

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Effect test

Embodiment approach 1

[0022] figure 1 The first embodiment of the electric water heater according to the present invention is schematically represented. figure 1 The figure only shows the inner tank 1 part of the electric water heater, since the parts other than the inner tank 1 can adopt various known structures, here, the description and illustration of the parts other than the inner tank 1 are omitted.

[0023] Such as figure 1 As shown, the upper end and the lower end inside the inner liner 1 are respectively provided with a thermoelectric heating body 5 and a preheating electric heating body 4 . A water inlet pipe 3 (equivalent to the water inlet unit of the present invention) is provided at the lower end of the inner container 1 . The water inlet pipe 3 can be arranged in various known ways, such as threaded connection, and can also be fixedly connected by welding. The connecting part between the water inlet pipe 3 and the inner tank 1 should be provided with a sealing device so as to seal...

Embodiment approach 2

[0037] Figure 6 It is an explanatory drawing which schematically shows Embodiment 2 of the electric water heater of this invention. and figure 1 same, Figure 6 The figure only shows the inner tank 10 part of the electric water heater, since the parts outside the inner tank 10 can adopt various known structures, the description and illustration of the outer parts of the inner tank 10 are omitted here.

[0038] The difference between this second embodiment and the above-mentioned first embodiment lies in the modification of the water inlet part. The arrangement of the water outlet pipe 2, the preheating electric heating element 4 and the thermoelectric heating element 5 are the same as those in Embodiment 1 above, and the three components are marked with the same symbols and detailed descriptions of their arrangement and functions are omitted.

[0039] Such as Figure 6 As shown, two water inlet pipes 31 and 32 are arranged at the bottom of the inner tank 10 to form a wate...

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Abstract

The invention provides an electric water heater, which is provided with a water inlet unit, an outlet pipe (2) and a heating unit. The heating unit comprises a prewarming heating body (4) and an instantaneous heating body (5) which are arranged at two ends of the inside of a liner (1) and can independently work; and the water inlet unit (3) is provided with a water inlet (3b) which has a space with the instantaneous heating body (5). The electric water heater can make the instantaneous heating body continuously work for a long time, improve the flow capacity of hot water, simultaneously prevents the aging problem caused by long time working of the instantaneous heating body at high temperature, and reduces the maintenance cost.

Description

technical field [0001] The invention relates to an electric water heater. Background technique [0002] Among the existing electric water heaters, there is known an electric water heater which firstly preheats the water entering the water heater, and then heats the preheated water instantly. For example, an electric water heater is disclosed in Chinese patent ZL200520058863.0, which has two inner tanks, upstream and downstream, and heating pipes are arranged in the two inner tanks. The water is preheated in the upstream liner, and the water is instantly heated in the downstream liner. In addition, for example, Chinese ZL200620074015.3 discloses a water heater which is an improvement on the above-mentioned water heater, and an instant heating mechanism is additionally provided on the downstream side of the downstream liner, and the instant heating mechanism can work independently. [0003] However, the above two types of electric water heaters have complex structures, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/22
Inventor 孙京岩王任华孙强赵小勇赵静姝
Owner HAIER GRP CORP
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