Waterproof electric water heater

By introducing components such as leakage detectors and electric push rods into electric water heaters, water can be discharged in a timely manner when there is a leakage, solving the problem of high risk of electric shock for users and improving safety and service life.

CN224398027UActive Publication Date: 2026-06-23FOSHAN YUANSHANGQUAN ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN YUANSHANGQUAN ELECTRIC CO LTD
Filing Date
2025-06-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing electric water heaters are prone to leakage when the insulation layer ages or the grounding is poor, posing a high risk of electric shock to users, and current technology lacks effective protective measures.

Method used

A waterproof electric water heater was designed, which includes components such as a leakage detector, an electric push rod, a U-shaped rod, and a one-way valve. By monitoring the leakage status and promptly draining the water, it prevents water from entering the shell when leakage occurs.

Benefits of technology

In the event of an electrical leak, the water is drained promptly to prevent electric shock to the user, thus improving safety and extending the lifespan of the electric water heater.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224398027U_ABST
Patent Text Reader

Abstract

The utility model provides waterproof electric water heater relates to water heater technical field, including water heater body, water heater body includes casing and water inlet pipe, casing constitutes the main frame of water heater body, protects internal component, the water inlet pipe is installed in the bottom of casing, casing outside is equipped with control panel, and control panel is used for operating setting the working parameter of water heater body. This waterproof electric water heater can monitor the inside leakage state of casing through the leakage detector, after monitoring the leakage, the electric push rod will drive the sealing plate on the drain pipe and the U-shaped rod to move, so that the drain pipe and the inside of casing are in the communicating state, and the water in the inside of casing is discharged in time, at the same time, the U-shaped rod will also drive the slide column to tightly abut against the sealing plate, so that the water in the water inlet pipe will not enter the inside of casing, the device can discharge the water in the inside of casing in time when the leakage occurs in the inside of casing, and prevents the user from being electrocuted.
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Description

Technical Field

[0001] This utility model relates to a water heater, specifically a waterproof electric water heater, and belongs to the field of water heater technology. Background Technology

[0002] An electric water heater is a device that heats water using electrical energy. It mainly consists of a water tank, heating element, and thermostat. It converts electrical energy into heat energy to heat the water in the tank, meeting people's needs for hot water for bathing, washing, and other purposes. Its advantages include easy installation, flexible use, the ability to provide hot water as needed, and stable water temperature. Based on installation method, it can be divided into wall-mounted and floor-standing types, and different specifications are available based on capacity. Safety precautions must be taken during use, ensuring proper grounding and avoiding dry burning. It is widely used in homes, hotels, and other places, bringing convenience to people's lives.

[0003] The insulation layer of the heating element inside an electric water heater ages and breaks down. Prolonged exposure to high-temperature water corrosion and frequent thermal expansion and contraction gradually reduces its insulation performance, causing the internal heating wire to leak electricity upon contact with water. In this situation, current can seep into the water. If the outer casing is poorly grounded or the anti-electric shock barrier fails, users are at risk of electric shock when in contact with the water. Therefore, a waterproof electric water heater is proposed. Utility Model Content

[0004] This utility model proposes a waterproof electric water heater that can promptly drain the water inside the water heater when an electrical leak occurs, preventing users from being electrocuted.

[0005] This utility model is achieved through the following technical solution: a waterproof electric water heater, including a water heater body, the water heater body including a shell and a water inlet pipe, the shell forming the main frame of the water heater body and protecting the internal components.

[0006] The water inlet pipe is installed at the bottom of the housing, and a control panel is installed on the outside of the housing. The control panel is used to operate and set the working parameters of the water heater body. A magnesium rod and a water outlet pipe are also installed at the bottom of the housing.

[0007] The magnesium rod is mainly used to prevent corrosion inside the shell. It reacts preferentially with oxygen and chloride ions in the water through the principle of sacrificial anode, thereby protecting the shell and the heating rod from corrosion and extending its service life. The heating rod is installed inside the shell. When the heating rod is powered on, it can heat the water inside the shell. The outlet pipe outputs heated hot water, and the inlet pipe inputs cold water.

[0008] It also includes protective components, which are installed on the housing and the water inlet pipe. The protective components include a drain pipe and a leakage current detector. The drain pipe is connected to the housing. Both the drain pipe and the water inlet pipe are equipped with one-way valves, and the two one-way valves are set in different directions.

[0009] The one-way valve includes a valve body, a fixing ring fixed inside the valve body, a compression spring fixed on the fixing ring, a sealing plate fixed on the compression spring, a sealing ring fixed inside the valve body, and the sealing plate abutting against the sealing ring.

[0010] The protective component also includes a U-shaped rod, which is used to control the connection between the two one-way valves and the housing. The protective component also includes two guide plates, which are respectively fixed on the two valve bodies. The U-shaped rod is slidably connected inside the guide plates, and the guide plates can guide the U-shaped rod to make its movement more stable.

[0011] The left end of the U-shaped rod is slidably provided with a sliding column by a spring, and the sliding column is fixed to the sealing plate on the water inlet pipe. The right end of the U-shaped rod is fixed to the sealing plate on the drain pipe.

[0012] The protective component also includes an electric push rod, which is fixed in the valve body on the drain pipe. The output end of the electric push rod is fixed to the sealing plate on the drain pipe. The protective component also includes a waterproof sleeve, which is fixed to the sealing plate on the drain pipe and is sleeved over the electric push rod. When draining water through the drain pipe, the waterproof sleeve can provide a waterproof effect for the electric push rod.

[0013] This utility model provides a waterproof electric water heater, which has the following beneficial effects:

[0014] This waterproof electric water heater uses a leakage detector to monitor the internal leakage status of the casing. Once a leakage is detected, the electric push rod will move the sealing plate and U-shaped rod on the drain pipe, making the drain pipe and the inside of the casing connected, thus promptly draining the water inside the casing. At the same time, the U-shaped rod will also move the sliding column to tightly press against the sealing plate, preventing water from the inlet pipe from entering the casing. This device can promptly drain the water inside the casing when a leakage occurs, preventing users from being electrocuted. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the one-way valve structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the valve body of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Water heater body; 101. Shell; 102. Control panel; 103. Magnesium rod; 104. Outlet pipe; 105. Inlet pipe; 106. Heating element;

[0021] 2. Protective components; 201. Drain pipe; 202. Leakage detector; 203. U-shaped rod; 204. Sliding column; 205. Electric push rod; 206. Waterproof sleeve; 207. Guide plate;

[0022] 3. Check valve; 301. Valve body; 302. Retaining ring; 303. Compression spring; 304. Sealing plate; 305. Sealing ring. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0024] Please see Figures 1-4 The present invention proposes the following implementation scheme: a waterproof electric water heater, including a water heater body 1, the water heater body 1 including a shell 101 and a water inlet pipe 105, the shell 101 forming the main frame of the water heater body 1 and protecting the internal components.

[0025] Please refer to this carefully. Figure 1 and Figure 2 The inlet pipe 105 is installed at the bottom of the housing 101. A control panel 102 is installed on the outside of the housing 101. The control panel 102 is used to operate and set the working parameters of the water heater body 1. A magnesium rod 103 and an outlet pipe 104 are also installed at the bottom of the housing 101.

[0026] Please refer to this carefully. Figure 1 and Figure 2 The magnesium rod 103 is mainly used to prevent corrosion inside the shell 101. It reacts preferentially with oxygen and chloride ions in the water through the principle of sacrificial anode, thereby protecting the inside of the shell 101 and the heating rod 106 from corrosion and extending their service life. The heating rod 106 is installed inside the shell 101. After the heating rod 106 is energized, it can heat the water inside the shell 101. The outlet pipe 104 outputs heated hot water, and the inlet pipe 105 inputs cold water.

[0027] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4It also includes a protection component 2, which is installed on the housing 101 and the water inlet pipe 105. The protection component 2 includes a drain pipe 201 and a leakage current detector 202. The drain pipe 201 is connected to the housing 101. Both the drain pipe 201 and the water inlet pipe 105 are equipped with a one-way valve 3, and the two one-way valves 3 are set in different directions.

[0028] Please refer to this carefully. Figure 3 and Figure 4 The one-way valve 3 includes a valve body 301, a fixing ring 302 fixed inside the valve body 301, a compression spring 303 fixed on the fixing ring 302, a sealing plate 304 fixed on the compression spring 303, a sealing ring 305 fixed inside the valve body 301, and the sealing plate 304 abutting against the sealing ring 305.

[0029] Please refer to this carefully. Figure 3 and Figure 4 The protective component 2 also includes a U-shaped rod 203, which is used to control the connection between the two one-way valves 3 and the housing 101. The protective component 2 also includes two guide plates 207, which are fixed on the two valve bodies 301 respectively. The U-shaped rod 203 is slidably connected in the guide plate 207, which can guide the U-shaped rod 203 to make the movement of the U-shaped rod 203 more stable.

[0030] The left end of the U-shaped rod 203 is slidably provided with a sliding column 204 by a spring. The sliding column 204 is fixed to the sealing plate 304 on the water inlet pipe 105. The right end of the U-shaped rod 203 is fixed to the sealing plate 304 on the drain pipe 201.

[0031] Please refer to this carefully. Figure 3 and Figure 4 The protective component 2 also includes an electric push rod 205, which is fixed inside the valve body 301 on the drain pipe 201. The output end of the electric push rod 205 is fixed to the sealing plate 304 on the drain pipe 201. The protective component 2 also includes a waterproof sleeve 206, which is fixed on the sealing plate 304 on the drain pipe 201. The waterproof sleeve 206 is sleeved on the electric push rod 205. When draining water through the drain pipe 201, the waterproof sleeve 206 can provide a waterproof effect for the electric push rod 205.

[0032] Working principle: The leakage current detector 202 can monitor the leakage current status inside the housing 101. After the leakage current detector 202 detects leakage current, the electric push rod 205 will be activated. The activation of the electric push rod 205 will drive the sealing plate 304 and the U-shaped rod 203 on the drain pipe 201 to move. After the sealing plate 304 is removed, the drain pipe 201 and the inside of the housing 101 will be in a connected state, thereby timely draining the water inside the housing 101.

[0033] At the same time, the U-shaped rod 203 will also drive the sliding column 204 to press tightly against the sealing plate 304 on the water inlet pipe 105, so that the water in the water inlet pipe 105 will not enter the interior of the housing 101. When there is leakage inside the housing 101, the device can drain the water inside the housing 101 in time to prevent the user from being electrocuted.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waterproof electric water heater, comprising a water heater body (1), the water heater body (1) comprising a shell (101) and a water inlet pipe (105), characterized in that: It also includes a protective component (2), which is disposed on the housing (101) and the water inlet pipe (105); The protection component (2) includes a drain pipe (201) and a leakage detector (202). The drain pipe (201) is connected to the housing (101). Both the drain pipe (201) and the inlet pipe (105) are equipped with one-way valves (3), and the two one-way valves (3) are set in different directions. The protection component (2) also includes a U-shaped rod (203), which is used to control the connection state between the two one-way valves (3) and the housing (101).

2. The waterproof electric water heater according to claim 1, characterized in that: The one-way valve (3) includes a valve body (301), a fixing ring (302) is fixed inside the valve body (301), a compression spring (303) is fixed on the fixing ring (302), a sealing plate (304) is fixed on the compression spring (303), a sealing ring (305) is fixed inside the valve body (301), and the sealing plate (304) abuts against the sealing ring (305).

3. The waterproof electric water heater according to claim 2, characterized in that: The left end of the U-shaped rod (203) is slidably provided with a sliding column (204) by a spring. The sliding column (204) is fixed to the sealing plate (304) on the water inlet pipe (105). The right end of the U-shaped rod (203) is fixed to the sealing plate (304) on the drain pipe (201).

4. The waterproof electric water heater according to claim 3, characterized in that: The protective component (2) also includes an electric push rod (205), which is fixed inside the valve body (301) on the drain pipe (201), and the output end of the electric push rod (205) is fixed to the sealing plate (304) on the drain pipe (201).

5. The waterproof electric water heater according to claim 2, characterized in that: The protective component (2) also includes a waterproof sleeve (206), which is fixed on a sealing plate (304) on a drain pipe (201) and is sleeved on an electric push rod (205).

6. The waterproof electric water heater according to claim 5, characterized in that: The protective component (2) also includes two guide plates (207), which are fixed on the two valve bodies (301) respectively, and the U-shaped rod (203) is slidably connected inside the guide plates (207).

7. The waterproof electric water heater according to claim 1, characterized in that: A control panel (102) is installed outside the housing (101), a magnesium rod (103) and a water outlet pipe (104) are also installed at the bottom of the housing (101), and a heating rod (106) is installed inside the housing (101).