Novel electric water heater

Abstract

The utility model discloses a novel electric water heater, which relates to the technical field of electric water heaters and comprises an electric water heater body, a main water tank is mounted in the electric water heater body, a water inlet pipe is mounted on the side wall of the electric water heater body, and a water pre-storage device is arranged on the water inlet pipe. The side, away from the water inlet pipe, of the water pre-storage device is communicated with the interior of the main water tank, the end, away from the water inlet pipe, of the preheating mechanism is communicated with the interior of the main water tank, a water outlet pipe is installed on the bottom wall of the electric water heater body, and the water outlet pipe is communicated with the interior of the main water tank. According to the inlet water preheating system of the electric water heater, the first electric heating wire is arranged in the water inlet pipe, so that hot water can be preheated when flowing through the water inlet pipe, the subsequent heating time of the electric heating wire is shortened, and the effects of saving electric energy, increasing the heating speed and improving the heating efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water heaters, in particular to a novel electric water heater. Background Art

[0002] An electric water heater is usually installed on the inner wall of the bathroom. This water heater is designed to be installed on the wall, saving space and providing hot water conveniently while taking a bath.

[0003] Traditional electric water heaters usually place an electric heating wire in a water tank and heat the water by heating the electric heating wire; however, this method takes a long time to reach the set water temperature in the initial heating stage, especially when used continuously or in large quantities, the heating efficiency will be significantly reduced. Therefore, improving the heating efficiency of electric water heaters and reducing user waiting time are important directions for improving electric water heater technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and provides a new type of electric water heater.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A novel electric water heater comprises an electric water heater body, a main water tank is installed inside the electric water heater body, a water inlet pipe is installed on the side wall of the electric water heater body, a pre-water storage device is arranged on the water inlet pipe, a side of the pre-water storage device away from the water inlet pipe is connected to the inside of the main water tank, an end of the preheating mechanism away from the water inlet pipe is connected to the inside of the main water tank, a water outlet pipe is installed on the bottom wall of the electric water heater body, and the water outlet pipe is connected to the inside of the main water tank;

[0007] The preheating mechanism includes a plurality of first electric heating wires installed inside the water inlet pipe, and the first electric heating wires are used to preheat the water source in the water inlet pipe.

[0008] The above technical solution further includes: an insulating sleeve is installed outside the first electric heating wire.

[0009] The pre-water storage device includes a pre-water storage tank, the water outlet end of the water inlet pipe is installed at the bottom of the side wall of the pre-water storage tank, a connecting pipe is installed at the top of the side wall of the pre-water storage tank, and the end of the connecting pipe away from the pre-water storage tank is connected to the interior of the main water tank.

[0010] A one-way valve is installed inside the water inlet pipe.

[0011] A controller is installed on the electric water heater body, a temperature sensor is installed inside the main water tank, a second electric heating wire is installed inside the main water tank, and the first electric heating wire, the temperature sensor and the second electric heating wire are electrically connected to the controller respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides an electric water heater inlet water preheating system, which arranges a first electric heating wire in the water inlet pipe so that hot water can be preheated when flowing through the water inlet pipe, thereby reducing the subsequent heating time of the electric heating wire, thus achieving the effect of saving electric energy, accelerating the heating speed and improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the internal structure of a new type of electric water heater proposed by the utility model;

[0015] Figure 2 is a cross-sectional schematic diagram of a first shape of a first electric heating wire and a water inlet pipe;

[0016] Figure 3 This is a schematic diagram of the electrical connection structure of the utility model;

[0017] Figure 4 is a cross-sectional schematic diagram of a second shape of the first electric heating wire and the water inlet pipe;

[0018] Figure 5 It is a cross-sectional schematic diagram of the third shape of the first electric heating wire and the water inlet pipe.

[0019] In the figure:

[0020] 1. Water inlet pipe; 2. Water outlet pipe; 3. Pre-storage water tank; 4. Connecting pipe; 5. Main water tank; 6. First electric heating wire; 7. Temperature sensor; 8. Second electric heating wire; 9. Controller; 10. Electric water heater body; 11. One-way valve. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] See attached Figure 1-3 The utility model proposes a new type of electric water heater, including an electric water heater body 10, and a main water tank 5 is installed inside the electric water heater body 10; wherein, the improvement of the device mainly lies in the position of the water inlet pipe 1, so the device focuses on the improved water pipeline part, and the rest of the device still adopts the existing technology, and the unimproved part will not be repeated below.

[0024] A water inlet pipe 1 is installed on the side wall of the electric water heater body 10, and a pre-water storage device is provided on the water inlet pipe 1. The side of the pre-water storage device away from the water inlet pipe 1 is connected to the inside of the main water tank 5, and the end of the preheating mechanism away from the water inlet pipe 1 is connected to the inside of the main water tank 5. A water outlet pipe 2 is installed on the bottom wall of the electric water heater body 10, and the water outlet pipe 2 is connected to the inside of the main water tank 5;

[0025] The preheating mechanism includes a plurality of first electric heating wires 6 installed inside the water inlet pipe 1, and the first electric heating wires 6 are used to preheat the water source in the water inlet pipe 1; wherein the shape of the first electric heating wires 6 can be as follows: Figure 2 The shape shown in the figure increases the contact area with water, thereby improving the efficiency of water heating.

[0026] An insulating sleeve is installed outside the first electric heating wire 6 .

[0027] The pre-storage water device includes a pre-storage water tank 3, the water outlet end of the water inlet pipe 1 is installed at the bottom position of the side wall of the pre-storage water tank 3, and a connecting pipe 4 is installed at the top position of the side wall of the pre-storage water tank 3, and the end of the connecting pipe 4 away from the pre-storage water tank 3 is connected to the interior of the main water tank 5; wherein, when the water in the water inlet pipe 1 enters the interior of the pre-storage water tank 3, since the water outlet of the water inlet pipe 1 is located at the bottom of the pre-storage water tank 3, the preheated water will be pre-stored in the pre-storage water tank 3, and under the action of the water flow, the water in the pre-storage water tank 3 is mixed, so that the water in the pre-storage water tank 3 has a relatively uniform temperature, which is convenient for the subsequent controller to control the second electric heating wire 8 to heat the water in the main water tank 5 according to the temperature detected by the temperature sensor 7.

[0028] A one-way valve 11 is installed inside the water inlet pipe 1 ; wherein the one-way valve 11 is installed inside the water inlet pipe 1 at one end side of the pre-storage water tank 3 .

[0029] A controller 9 is installed on the electric water heater body 10, a temperature sensor 7 is installed inside the main water tank 5, a second electric heating wire 8 is installed inside the main water tank 5 (an insulating material is also provided outside the second electric heating wire 8), and the first electric heating wire 6, the temperature sensor 7 and the second electric heating wire 8 are electrically connected to the controller 9 respectively; wherein, the temperature sensor 7 can detect the temperature of water entering the main water tank 5, and a temperature threshold range is set for the second electric heating wire 8, and the controller 9 controls the second electric heating wire 8 according to the temperature detected by the temperature sensor 7, thereby realizing secondary heating of the water to heat the water temperature to the temperature set by the user.

[0030] In this embodiment, by arranging the first electric heating wire 6 in the water inlet pipe 1, the hot water can be preheated when flowing through the water inlet pipe 1, thereby reducing the subsequent heating time of the second electric heating wire 8 and improving the heating efficiency.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel electric water heater, comprising an electric water heater body (10), wherein a main water tank (5) is installed inside the electric water heater body (10), characterized in that: A water inlet pipe (1) is installed on the side wall of the electric water heater body (10), a pre-water storage device is provided on the water inlet pipe (1), a side of the pre-water storage device away from the water inlet pipe (1) is connected to the interior of the main water tank (5), an end of the preheating mechanism away from the water inlet pipe (1) is connected to the interior of the main water tank (5), and a water outlet pipe (2) is installed on the bottom wall of the electric water heater body (10), the water outlet pipe (2) is connected to the interior of the main water tank (5); The preheating mechanism comprises a plurality of first electric heating wires (6) installed inside the water inlet pipe (1), wherein the first electric heating wires (6) are used to preheat the water source in the water inlet pipe (1).

2. A novel electric water heater according to claim 1, characterized in that: An insulating sleeve is installed outside the first electric heating wire (6).

3. A novel electric water heater according to claim 1, characterized in that: The pre-water storage device comprises a pre-water storage tank (3), the water outlet end of the water inlet pipe (1) is installed at the bottom of the side wall of the pre-water storage tank (3), and a connecting pipe (4) is installed at the top of the side wall of the pre-water storage tank (3), and the end of the connecting pipe (4) away from the pre-water storage tank (3) is connected to the interior of the main water tank (5).

4. A novel electric water heater according to claim 3, characterized in that: A one-way valve (11) is installed inside the water inlet pipe (1).

5. A novel electric water heater according to claim 1, characterized in that: A controller (9) is installed on the electric water heater body (10), a temperature sensor (7) is installed inside the main water tank (5), a second electric heating wire (8) is installed inside the main water tank (5), and the first electric heating wire (6), the temperature sensor (7) and the second electric heating wire (8) are electrically connected to the controller (9) respectively.

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