Electric water heater

Abstract

The utility model discloses an electric water heater which comprises an inner container and a hot water pipe, the inner container is provided with a water inlet pipe and a water outlet pipe, and at least one part of the water outlet pipe is located in the inner container. The hot water pipe comprises a flange, a bottom-layer heating pipe, a top-layer heating pipe and a sleeve, the flange is installed on the inner container, the bottom-layer heating pipe, the top-layer heating pipe and the sleeve are all located in the inner container, one end of the bottom-layer heating pipe and one end of the top-layer heating pipe are both installed on the flange, the water outlet pipe is sleeved with the sleeve, and a part of the top-layer heating pipe is located between the water outlet pipe and the sleeve; the top layer heating pipe is located on the outer side of the water outlet pipe, the top layer heating pipe can heat water in the water outlet pipe, the sleeve is arranged outside the top layer heating pipe in a sleeved mode, the sleeve plays a role in energy gathering, heat released by the top layer heating pipe is stored in the sleeve, rapid heating is achieved, and the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to an electric water heater. Background Art

[0002] The existing water heater includes an inner tank and a water outlet pipe and an electric heating pipe installed in the inner tank. The electric heating pipe includes a bottom heating pipe and a top heating pipe. The heating portion of the top heating pipe is arranged on one side of the water outlet pipe of the water heater. When the water heater works normally, the bottom heating pipe is started. When the water heater is used for a long time and the water outlet temperature does not reach the preset temperature, the top heating pipe is started. The heating portion of the top heating pipe heats the water in the water outlet pipe, thereby increasing the water outlet temperature. Although the existing electric heating pipe can increase the water outlet temperature, the heating efficiency is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an electric water heater.

[0004] According to the first aspect of the utility model, the electric water heater comprises an inner tank and a hot water pipe, the inner tank is provided with a water inlet pipe and a water outlet pipe, at least a portion of the water outlet pipe is located in the inner tank; the hot water pipe comprises a flange, a bottom heating pipe, a top heating pipe and a sleeve, the flange is installed on the inner tank, the bottom heating pipe, the top heating pipe and the sleeve are all located in the inner tank, one end of the bottom heating pipe and one end of the top heating pipe are both installed on the flange, the sleeve is sleeved outside the water outlet pipe, and a portion of the top heating pipe is located between the water outlet pipe and the sleeve.

[0005] The electric water heater according to the embodiment of the utility model has at least the following technical effects: the top heating tube is located on the outside of the water outlet pipe, the water in the water outlet pipe can be heated by the top heating tube, and a sleeve is arranged outside the top heating tube to gather energy, so that the heat released by the top heating tube is stored in the sleeve, thereby achieving rapid heating and improving heating efficiency.

[0006] According to some embodiments of the present invention, the top layer heating tube includes a heating portion and a connecting portion, two ends of the connecting portion are respectively connected to the heating portion and the flange, and the heating portion is arranged in the sleeve.

[0007] According to some embodiments of the present invention, the heating portion surrounds the water outlet pipe.

[0008] According to some embodiments of the utility model, the heating part includes two U-shaped tube bodies and a U-shaped connecting tube body, the two U-shaped tube bodies are arranged at intervals and parallel to each other along the radial direction of the sleeve, one ends of the two U-shaped tube bodies are connected by the U-shaped connecting tube body, and the other ends of the two U-shaped tube bodies are connected to the connecting part, and the sleeve is sleeved outside the two U-shaped tube bodies.

[0009] According to some embodiments of the present utility model, the hot water pipe further includes a fixing member, and the sleeve is fixed to the top layer heating pipe through the fixing member.

[0010] According to some embodiments of the present invention, the bottom layer heating tube is located below the heating part.

[0011] According to some embodiments of the present invention, the heating portion and the connecting portion are integrally formed.

[0012] According to some embodiments of the present utility model, the water outlet pipe has a water inlet and a water outlet, the water inlet and the sleeve are both arranged at the top of the water outlet pipe, and the water inlet is arranged at the bottom of the water outlet pipe.

[0013] According to some embodiments of the utility model, the hot water pipe further includes a temperature measuring tube, which is located in the inner tank and connected to the flange.

[0014] According to some embodiments of the utility model, the bottom heating tube includes a first connecting section and a second connecting section, one end of the first connecting section is connected to the flange, the second connecting section is located above the other end of the first connecting section, and one end of the second connecting section away from the flange is connected to the other end of the first connecting section.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of an electric water heater according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure in which a part of the top heating pipe and the water outlet pipe are arranged in the casing;

[0019] Figure 3 It is a schematic diagram of the structure of the top layer heating tube;

[0020] Figure 4It is a schematic diagram of the structure of the hot water pipe;

[0021] Figure 5 A schematic diagram of a top view of a structure in which a portion of the top heating tube is arranged in the casing;

[0022] Figure 6 A schematic diagram of the structure of the fixing parts.

[0023] Figure numerals: inner tank 100, water inlet pipe 110, water outlet pipe 120, water inlet 121, water outlet 122, hot water pipe 200, flange 210, bottom heating pipe 220, first connecting section 221, second connecting section 222, top heating pipe 230, heating part 231, U-shaped tube body 2311, U-shaped connecting tube body 2312, connecting part 232, sleeve 240, fixing part 250, temperature measuring tube 260. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figure 1As shown, the electric water heater according to the embodiment of the utility model includes an inner tank 100 and a hot water pipe 200, the inner tank 100 is equipped with a water inlet pipe 110 and a water outlet pipe 120, at least a portion of the water outlet pipe 120 is located in the inner tank 100; the hot water pipe 200 includes a flange 210, a bottom heating pipe 220, a top heating pipe 230 and a sleeve 240, the flange 210 is installed on the inner tank 100, the bottom heating pipe 220, the top heating pipe 230 and the sleeve 240 are all located in the inner tank 100, one end of the bottom heating pipe 220 and one end of the top heating pipe 230 are both installed on the flange 210, as shown in FIG. Figure 1 , 2 As shown, the sleeve 240 is sleeved outside the water outlet pipe 120 , and a portion of the top layer heating pipe 230 is located between the water outlet pipe 120 and the sleeve 240 .

[0029] The top-layer heating tube 230 is located on the outside of the water outlet pipe 120. The water in the water outlet pipe 120 can be heated by the top-layer heating tube 230. The top-layer heating tube 230 is also provided with a sleeve 240. The sleeve 240 plays the role of energy gathering, and the heat released by the top-layer heating tube 230 is stored in the sleeve 240, thereby achieving rapid heating and improving heating efficiency.

[0030] During operation, external water is transported to the inner tank 100 through the water inlet pipe 110, and the bottom heating pipe 220 is started to heat the water in the inner tank 100; when the user needs hot water, the water in the inner tank 100 is discharged to the outside of the inner tank 100 through the water outlet pipe 120 for the user to use; when the user uses hot water for a long time, the water temperature in the inner tank 100 is lower than the preset temperature. In order to ensure the outlet water temperature, the top heating pipe 230 and the bottom heating pipe 220 are started at the same time, and the top heating pipe 230 heats the inside of the sleeve 240, so that the sleeve 240 plays an energy gathering role, so that the top heating pipe 230 quickly heats the water in the outlet pipe 120 to ensure the outlet water temperature.

[0031] Specifically, Figure 1 As shown, the flange 210 is installed at the right end of the inner tank 100, the water inlet pipe 110 and the water outlet pipe 120 are both vertically arranged, the water outlet pipe 120 and the water inlet pipe 110 are spaced apart along the left and right directions of the inner tank 100, and the bottom of the water inlet pipe 110 and the bottom of the water outlet pipe 120 are installed at the bottom of the inner tank 100.

[0032] In some embodiments of the present invention, Figure 1 , 2As shown, the top-layer heating tube 230 includes a heating portion 231 and a connecting portion 232. The two ends of the connecting portion 232 are respectively connected to the heating portion 231 and the flange 210. The heating portion 231 is arranged in the sleeve 240 so that the heat released by the top-layer heating tube 230 is located in the sleeve 240, thereby ensuring the energy gathering effect of the sleeve 240 and ensuring the effect of quickly heating water.

[0033] In a further embodiment of the present invention, the heating portion 231 surrounds the water outlet pipe 120 to fully heat the water in the water outlet pipe 120 ; specifically, the heating portion 231 is spiral-shaped.

[0034] In a further embodiment of the present invention, the heating portion 231 semi-surrounds the water outlet pipe 120 .

[0035] In a further embodiment of the present invention, Figure 3 As shown, the heating portion 231 includes two U-shaped tubes 2311 and a U-shaped connecting tube 2312. The two U-shaped tubes 2311 are spaced apart and parallel to each other along the radial direction of the sleeve 240. One end of the two U-shaped tubes 2311 is connected by the U-shaped connecting tube 2312, and the other end of the two U-shaped tubes 2311 is connected to the connecting portion 232. Figure 2 As shown, the sleeve 240 is sleeved outside the two U-shaped tube bodies 2311; the heating part 231 adopts the above-mentioned shape so that the heating part 231 semi-surrounds the water outlet pipe 120, so that the top heating tube 230 can be manufactured more simply and have a longer service life while ensuring the effect of heating the water outlet pipe 120.

[0036] In a further embodiment of the present invention, Figure 4 , 5 As shown in Figure 6, the hot water pipe 200 also includes a fixing part 250, and the sleeve 240 is fixed to the top heating pipe 230 through the fixing part 250, so that the top heating pipe 230 can transfer heat to the sleeve 240 through the fixing part 250, so that the sleeve 240 cooperates with the top heating pipe 230, and then can evenly heat the water in the water outlet pipe 120, thereby ensuring improved heating efficiency.

[0037] In a further embodiment of the present invention, Figure 4 As shown, the bottom heating tube 220 is located below the heating portion 231 so that the bottom heating tube 220 and the top heating tube 230 do not interfere with each other, thereby ensuring the heating effect.

[0038] Specifically, the bottom heating tube 220 extends in the left-right direction, the heating portion 231 of the top heating tube 230 is connected to one end of the connecting portion 232 , and the heating portion 231 is located above the left side of the bottom heating tube 220 .

[0039] In a further embodiment of the present invention, the heating portion 231 and the connecting portion 232 are integrally formed, which facilitates the manufacture of the top layer heating tube 230 .

[0040] In some embodiments of the present invention, Figure 1 , 2 As shown, the water outlet pipe 120 has a water inlet 121 and a water outlet 122. The water inlet 121 and the sleeve 240 are both arranged at the top of the water outlet pipe 120. The water inlet 121 is arranged at the bottom of the water outlet pipe 120. The sleeve 240 is located close to the water inlet 121 so that the water in the water outlet pipe 120 is fully heated to ensure the outlet water temperature.

[0041] In some embodiments of the present invention, Figure 1 As shown, the hot water pipe 200 also includes a temperature measuring tube 260, which is located in the inner tank 100 and connected to the flange 210, so as to facilitate real-time detection of the temperature in the inner tank 100 and to facilitate control of the opening and closing of the bottom heating tube 220 and the opening and closing of the top heating tube 230.

[0042] In some embodiments of the present invention, Figure 4 As shown, the bottom heating pipe 220 includes a first connecting section 221 and a second connecting section 222. One end of the first connecting section 221 is connected to the flange 210, and the second connecting section 222 is located above the other end of the first connecting section 221. One end of the second connecting section 222 away from the flange 210 is connected to the other end of the first connecting section 221 in an arc connection. The bottom heating pipe 220 adopts the above structure to reduce the space occupied by the bottom heating pipe 220 and make the overall structure of the hot water pipe 200 compact.

[0043] In the description of this specification, the description with reference to the terms "some embodiments" or "it is conceivable that" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation 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 one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An electric water heater, characterized in that: include: An inner liner, wherein the inner liner is provided with a water inlet pipe and a water outlet pipe, and at least a portion of the water outlet pipe is located in the inner liner; A hot water pipe comprises a flange, a bottom heating pipe, a top heating pipe and a sleeve, wherein the flange is mounted on the inner tank, the bottom heating pipe, the top heating pipe and the sleeve are all located in the inner tank, one end of the bottom heating pipe and one end of the top heating pipe are both mounted on the flange, the sleeve is sleeved outside the water outlet pipe, and a portion of the top heating pipe is located between the water outlet pipe and the sleeve.

2. The electric water heater according to claim 1, characterized in that: The top layer heating tube comprises a heating portion and a connecting portion, two ends of the connecting portion are respectively connected to the heating portion and the flange, and the heating portion is arranged in the sleeve.

3. The electric water heater according to claim 2, characterized in that: The heat generating portion surrounds the water outlet pipe.

4. The electric water heater according to claim 2, characterized in that: The heating part includes two U-shaped tube bodies and a U-shaped connecting tube body. The two U-shaped tube bodies are arranged at intervals and parallel to each other along the radial direction of the sleeve. One ends of the two U-shaped tube bodies are connected by the U-shaped connecting tube body, and the other ends of the two U-shaped tube bodies are connected to the connecting part. The sleeve is sleeved outside the two U-shaped tube bodies.

5. The electric water heater according to any one of claims 1 to 4, characterized in that: The hot water pipe also includes a fixing piece, and the sleeve is fixed on the top layer heating pipe through the fixing piece.

6. The electric water heater according to any one of claims 2 to 4, characterized in that: The bottom heating tube is located below the heating part.

7. The electric water heater according to any one of claims 2 to 4, characterized in that: The heating portion and the connecting portion are integrally formed.

8. The electric water heater according to claim 1, characterized in that: The water outlet pipe has a water inlet and a water outlet, the water inlet and the sleeve are both arranged at the top of the water outlet pipe, and the water inlet is arranged at the bottom of the water outlet pipe.

9. The electric water heater according to claim 1, characterized in that: The hot water pipe also includes a temperature measuring tube, which is located in the inner tank and connected to the flange.

10. The electric water heater according to claim 1, characterized in that: The bottom heating tube includes a first connecting section and a second connecting section, one end of the first connecting section is connected to the flange, the second connecting section is located above the other end of the first connecting section, and one end of the second connecting section away from the flange is connected to the other end of the first connecting section.

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