Water heater with water leakage detection function and water leakage detection and treatment method

Abstract

The invention discloses a water heater with a water leakage detection function and a water leakage detection and processing method.The water heater with the water leakage detection function comprises a water leakage detection module and a probe, the water leakage detection module comprises a detection unit and an output unit, and a branch where the detection unit is located and a branch where the output unit is located are parallel circuits; the probe is connected with the detection unit of the water leakage detection module, and a branch where the detection unit is located forms a path when the probe contacts with water leakage. And the probe and the water leakage detection module are arranged, so that the water leakage condition can be effectively detected. The invention provides a water heater water leakage detection and processing method with a water leakage detection function, and the method comprises the steps: collecting the voltages at the two ends of a specific electrical element which is a branch in parallel with a branch where a probe is located, comparing the voltage value and the duration of the voltage value with a corresponding set value, judging whether water leakage occurs or not, and carrying out the corresponding processing. And the occurrence of water leakage can be effectively prevented and electric leakage can be prevented.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of water heaters, in particular, to a water heater with a water leakage detection function and a water leakage detection and processing method. BACKGROUND

[0002] Currently, there is no detection of whether water leaks in the storage water heater. When the machine leaks, especially in the electrical room where strong electricity is located, it may cause a short circuit of the live device and a dangerous situation. If the leaked water comes into contact with strong electricity, the water flowing out of the water heater will also be electrified, and personnel touching it will be in danger of electric shock.

[0003] The Chinese patent with application number 201910732822.1 discloses a water leakage detection device for a water purifier and a water purifier, which mentions water leakage detection, but its detection reliability is poor.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a water heater with a water leakage detection function, which can effectively detect water leakage and prevent electric leakage.

[0006] The second object of the present application is to provide a water leakage detection and processing method for a water heater.

[0007] To solve the above technical problems, the basic idea of the technical solution of the present application is as follows:

[0008] A water heater with a water leakage detection function, comprising a water leakage detection module and a probe, the probe is connected to the water leakage detection module, and the probe is located at the lower part of the electrical room; the water leakage detection module is connected to the control unit of the water heater.

[0009] When the water heater leaks, the water flows from the inner container to the electrical room and flows downward based on gravity to gather at the lower part of the electrical room. In order to effectively and timely detect the occurrence of water leakage, a probe is arranged at the lower part of the electrical room. Since the probe is connected to the water leakage detection module, when the water leaked into the electrical room contacts the probe, the circuit in which the probe in the water leakage detection module is located is connected to form a path. Since the water leakage detection module is connected to the control unit of the water heater, when the water leakage contacts the probe and the circuit in which the probe in the water leakage detection module is located is connected to form a path, the current of the specific branch of the water leakage detection module changes, and the voltage across the specific electrical element on the specific branch also changes. The voltage is collected and sent to the control unit of the water heater, so as to determine that the water heater has leaked, and the water leakage of the water heater is detected.

[0010] Further, a water storage tank is arranged at the lower part of the electrical room, and the probe is located in the water storage tank.

[0011] To facilitate timely detection of leaks, water leaking from the inner tank into the electrical compartment is collected in a water tank at the bottom of the electrical compartment. Two probes are located inside the water tank. When water in the water tank comes into contact with the probes, a path is formed between the two probes, causing a corresponding current change in a specific branch of the leak detection module. The voltage across a specific electrical component on this branch also changes accordingly. Based on this change, the water heater control unit determines that a leak has occurred in the water heater.

[0012] Furthermore, the leakage detection module includes a detection unit and an output unit, with the branch containing the detection unit and the branch containing the output unit being parallel circuits;

[0013] The probe connects to the detection unit of the leak detection module and creates a path in the branch where the detection unit is located when the probe comes into contact with the leak.

[0014] To avoid impact, the leak detection module in this invention includes a detection unit and an output unit. The branch containing the detection unit and the branch containing the output unit are parallel circuits. The probe is connected to the detection unit of the leak detection module, and when the probe contacts the leak, it creates a circuit in the branch containing the detection unit. Thus, when the water heater leaks, both the detection unit and the output unit of the leak detection module are in a closed circuit. Since the two branches are parallel circuits, a current shunting occurs when the detection unit is in a closed circuit, reducing the current in the branch containing the output unit. This causes a change in the voltage across a specific electrical component in the branch containing the output unit, which reflects the water heater leak. However, this voltage change does not involve an instantaneous voltage surge from zero to one.

[0015] Furthermore, the leakage detection module also includes a voltage acquisition circuit, which is connected to both ends of a specific electrical component on the branch where the output unit is located.

[0016] To monitor voltage changes across a specific electrical component on the branch where the output unit is located, and thus detect water heater leaks, the leak detection module also includes a voltage acquisition circuit connected to the specific electrical component on the branch where the output unit is located. The voltage acquisition circuit continuously acquires the voltage across this specific electrical component as a basis for detecting whether the water heater is leaking.

[0017] Furthermore, the leak detection module also includes an analog-to-digital converter circuit, a voltage acquisition circuit connected to the analog-to-digital converter circuit, and the analog-to-digital converter circuit connected to the water heater control unit via BUS communication.

[0018] To enable the water heater control unit to more accurately determine whether the water heater is leaking, the leak detection module in this invention also includes an analog-to-digital conversion circuit. The voltage acquisition circuit in the leak detection module is connected to the analog-to-digital conversion circuit, which in turn is connected to the water heater control unit via BUS communication. As mentioned earlier, the voltage acquisition circuit is connected to both ends of a specific electrical component on the branch where the output unit is located, continuously acquiring the voltage across this specific electrical component. However, this voltage is an analog quantity. To more accurately use the acquired voltage to compare and determine whether the water heater is leaking, the acquired analog voltage is converted into a digital quantity through the analog-to-digital conversion circuit and then connected to the water heater control unit via BUS communication for precise comparison and judgment. This allows the water heater control unit to accurately and effectively determine whether the water heater is leaking.

[0019] Furthermore, the branch containing the detection unit in the leakage detection module contains two capacitors connected in parallel, the branch containing the output unit contains a diode, and the voltage acquisition circuit contains two capacitors and a Zener diode connected in parallel.

[0020] In circuit boards, DC power supply is more energy-efficient and safer. However, in this invention, since the probe is connected to the branch containing the detection unit in the leak detection module, to prevent DC current from electrolyzing the water when the probe comes into contact with water and the branch containing the detection unit forms a circuit, the branch containing the detection unit in the leak detection module contains two parallel capacitors. These two parallel capacitors are located at the beginning of this branch, i.e., two parallel capacitors are first set on this branch to prevent DC current from passing through this branch, thereby preventing DC current from electrolyzing the water between the two probes. In order to ensure that there is current in this branch when the probe comes into contact with water and the branch containing the detection unit forms a circuit, a PWM circuit (Pulse Width Modulation) is connected in the DC main circuit before the branch containing the detection unit in the leak detection module, thereby converting DC current into AC current and supplying power to the two parallel branches: the branch containing the detection unit in the leak detection module and the branch containing the output unit. In this way, when the probe comes into contact with water, creating a circuit in the branch where the detection unit in the leak detection module is located, AC power can pass through this branch without electrolyzing the water.

[0021] The voltage acquisition circuit is connected across a specific electrical component on the branch where the output unit is located, continuously acquiring the voltage across this specific electrical component. To ensure the accuracy of the acquired voltage, the voltage acquisition circuit includes two capacitors connected in parallel for filtering. Simultaneously, to prevent instability in the output of this acquired voltage, a Zener diode is also included in the voltage acquisition circuit, connected in parallel with the aforementioned two capacitors.

[0022] This invention provides a method for detecting and handling water leaks in a water heater with a water leak detection function. The method collects the voltage across a specific electrical component on a branch connected in parallel with the probe, compares the voltage value and its duration with a corresponding set value, and determines whether a water leak has occurred.

[0023] To detect water heater leaks, a probe is connected to one of two parallel branches. The voltage across a specific electrical component on the other parallel branch is then measured. Since there are two parallel branches, and the branch containing the probe is open when the probe is not in contact with water, while the other branch is always closed, a current shunting event will occur in the probe's branch when it comes into contact with the leak. This current shunting will inevitably affect the current in the other branch, thus affecting the voltage across the specific electrical component on that branch. The voltage value across this specific electrical component and the duration of this voltage value are measured and compared with corresponding set values. Specifically, the measured voltage value is compared with the set voltage value, and the duration of the measured voltage value is compared with the set duration. If both comparison conditions are met, the water heater is considered to be leaking; otherwise, it is considered not to be leaking.

[0024] Furthermore, if the detected voltage value is less than or equal to the set voltage value, and the duration of this voltage value is greater than the set duration, it is determined that the water heater is leaking.

[0025] When the water heater is not leaking, the probes do not contact the leak, so there is an open circuit between the two probes. The parallel branch containing the probes, i.e., the detection unit branch, is actually open, so there is no current in this branch. However, the other parallel branch, i.e., the output unit branch, is a closed circuit. When the water heater is leaking, the probes contact the leak, so a closed circuit is formed between the two probes. The parallel branch containing the probes, i.e., the detection unit branch, becomes a closed circuit, and some current is diverted from the main circuit. This causes a decrease in the current in the other parallel branch, i.e., the output unit branch. Consequently, the voltage across a specific electrical component in this output unit branch decreases. When the detected voltage value is less than or equal to the set voltage value, and the duration of this detected voltage value is greater than the set duration, it is determined that the water heater is leaking.

[0026] Furthermore, when a leak is detected in the water heater, the relay inside the water heater disconnects, cutting off the power to the heating element.

[0027] To ensure the safe operation of the water heater, when a leak is detected, the relay inside the water heater disconnects, cutting off the power to the heating element so that the water inside the water heater is not electrified, thus avoiding the risk of electric shock.

[0028] Furthermore, when a water heater leak is detected, the water heater display panel will show a leak warning and / or alert the user through sound, light, or remote means.

[0029] To enable users to understand the water heater leakage situation more intuitively and promptly, and to take timely action to avoid danger, when a water heater leakage is detected, the water heater display panel will show a leakage warning and / or notify the user through sound, light, or remote prompts.

[0030] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0031] This invention discloses a water heater with leakage detection function and a method for detecting and handling leakage. The water heater includes a leakage detection module and a probe. The leakage detection module includes a detection unit and an output unit, with the branch containing the detection unit and the branch containing the output unit connected in parallel. The probe is connected to the detection unit of the leakage detection module, and when the probe contacts a leak, it creates a circuit in the branch containing the detection unit. By using the probe and leakage detection module, leakage can be effectively detected. This invention also provides a method for detecting and handling leakage in a water heater. The method utilizes the aforementioned equipment to collect the voltage across a specific electrical component on a branch connected in parallel with the probe. The voltage value and its duration are compared with a corresponding set value to determine whether a leak has occurred and to take appropriate action, effectively preventing leakage and blocking electrical leakage.

[0032] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0033] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0034] Figure 1 This is a schematic diagram of the installation of a probe in a water heater with a leak detection function according to the present invention;

[0035] Figure 2 This is a circuit diagram of a water leak detection module for a water heater with a water leak detection function according to the present invention;

[0036] Figure 3 This is a schematic diagram of a water heater leakage detection and handling method with leakage detection function according to the present invention.

[0037] In the diagram: 1. Electrical room; 2. Probe.

[0038] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] This invention discloses a water heater with a leak detection function, comprising a leak detection module and a probe. The probe is connected to the leak detection module, such as... Figure 1 As shown, probe 2 is located in the lower part of electrical room 1; a water tank is provided in the lower part of electrical room 1, and probe 2 is located in the water tank.

[0043] A leak detection module is connected to the water heater control unit. The leak detection module includes a detection unit and an output unit; the branch containing the detection unit and the branch containing the output unit are connected in parallel. Probe 2 is connected to the detection unit of the leak detection module and creates a circuit in the branch containing the detection unit when probe 2 contacts a leak.

[0044] When a water heater leaks, water flows from the inner tank into the electrical compartment 1 and accumulates at the bottom due to gravity. To effectively and promptly detect leaks, a probe 2 is installed at the bottom of the electrical compartment 1. Since probe 2 is connected to a leak detection module, when water leaks into the electrical compartment 1 and contacts probe 2, it connects the circuit containing probe 2 in the leak detection module, creating a circuit. Because the leak detection module is connected to the water heater control unit, the contact of water with probe 2 causes a change in the current of a specific branch of the leak detection module. This, in turn, causes a change in the voltage across a specific electrical component on that branch. This voltage is collected and sent to the water heater control unit, thus determining that a leak has occurred and achieving leak detection.

[0045] In order to allow water leaking from the inner tank into the electrical chamber 1 to accumulate and facilitate timely detection of leaks, a water storage tank is installed in the lower part of the electrical chamber 1, and probes 2 are located in the water storage tank. There are two probes 2. When the water in the water storage tank comes into contact with the probes 2, a path is formed between the two probes 2, which causes a corresponding current change in a specific branch of the leak detection module. The voltage across the specific electrical component in this branch also changes accordingly. Based on this change, the water heater control unit determines that the water heater has leaked.

[0046] To avoid impact, the leak detection module in this invention includes a detection unit and an output unit. The branch where the detection unit is located and the branch where the output unit is located are parallel circuits. The probe 2 is connected to the detection unit of the leak detection module, and when the probe 2 contacts the leak, it makes the branch where the detection unit is located a closed circuit. Thus, when the water heater leaks, both branches where the detection unit and the output unit of the leak detection module are located are closed circuits. Since the two branches are parallel circuits, a current shunting occurs when the detection unit is a closed circuit, which reduces the current in the branch where the output unit is located. This causes a change in the voltage across a specific electrical component in the branch where the output unit is located. This voltage change reflects the water heater leak, but this voltage change will not cause an instantaneous voltage surge from zero to one.

[0047] To monitor voltage changes across a specific electrical component on the branch where the output unit is located, and thus detect water heater leaks, the leak detection module also includes a voltage acquisition circuit connected to the specific electrical component on the branch where the output unit is located. The voltage acquisition circuit continuously acquires the voltage across this specific electrical component as a basis for detecting whether the water heater is leaking.

[0048] To enable the water heater control unit to more accurately determine whether the water heater is leaking, the leak detection module in this invention also includes an analog-to-digital conversion circuit. The voltage acquisition circuit in the leak detection module is connected to the analog-to-digital conversion circuit, which in turn is connected to the water heater control unit via BUS communication. As mentioned earlier, the voltage acquisition circuit is connected to both ends of a specific electrical component on the branch where the output unit is located, continuously acquiring the voltage across this specific electrical component. However, this voltage is an analog quantity. To more accurately use the acquired voltage to compare and determine whether the water heater is leaking, the acquired analog voltage is converted into a digital quantity through the analog-to-digital conversion circuit and then connected to the water heater control unit via BUS communication for precise comparison and judgment. This allows the water heater control unit to accurately and effectively determine whether the water heater is leaking.

[0049] In this embodiment, as Figure 2 As shown in the diagram, R11-R17 are all resistors. The branch containing the detection unit in the leakage detection module includes two capacitors C11 and C14 connected in parallel, and three resistors R12, R13, and R14 connected in series with these two capacitors C11 and C14. Pins 1 and 2 are connected to two probes, with pin 1 grounded. The branch containing the output unit includes a diode D2 and resistors R15 and R16 connected in series with it. The voltage acquisition circuit includes two capacitors C12 and C13 connected in parallel and a Zener diode ZD1. The voltage acquisition circuit acquires the voltage across resistor R16.

[0050] In circuit boards, DC power supply consumes less power and is safer, such as... Figure 2 As shown, a 12V DC power supply is used to power the water leakage detection module. However, in this invention, since probe 2 is connected in the branch where the detection unit of the water leakage detection module is located, in order to prevent the DC current from electrolyzing the water when probe 2 comes into contact with water and forms a circuit in the branch where the detection unit of the water leakage detection module is located, two parallel capacitors C11 and C14 are included in the branch where the detection unit of the water leakage detection module is located. These two parallel capacitors C11 and C14 are set at the beginning of this branch, that is, two parallel capacitors C11 and C14 are set on this branch first, so as to prevent DC current from passing through this branch and thus prevent DC current from electrolyzing the water between the two probes 2. In order to ensure that there is current in this branch when probe 2 comes into contact with water and forms a circuit in the branch where the detection unit of the water leakage detection module is located, a PWM circuit, that is, pulse width modulation, is connected in the DC main circuit before the branch where the detection unit of the water leakage detection module is located, so as to convert DC current into AC current and supply power to the two parallel branches where the detection unit of the water leakage detection module is located and the output unit is located. In this way, when probe 2 comes into contact with water, creating a circuit in the branch where the detection unit in the leak detection module is located, AC power can pass through this branch without electrolyzing the water.

[0051] The voltage acquisition circuit is connected to the two ends of a specific electrical component on the branch where the output unit is located, continuously acquiring the voltage across this specific electrical component. To ensure the accuracy of the acquired voltage, the voltage acquisition circuit includes two capacitors C12 and C13 connected in parallel for filtering. Simultaneously, to prevent the output of this acquired voltage from becoming unstable, a Zener diode ZD1 is also included in the voltage acquisition circuit. This Zener diode ZD1 is connected in parallel with the aforementioned two capacitors C12 and C13.

[0052] The present invention also provides a water heater leakage detection and handling method with leakage detection function. Using the above-mentioned water heater with leakage detection function, the voltage across a specific electrical component on a branch in parallel with the branch where probe 2 is located is collected, and the voltage value and its duration are compared with the corresponding set value to determine whether leakage has occurred.

[0053] To detect water heater leaks, a probe 2 is connected to one of two parallel branches. The voltage across a specific electrical component, resistor R16, is measured on the other parallel branch. Since there are two parallel branches, and the branch containing probe 2 is open when probe 2 is not in contact with water, while the other branch is always closed, a leak will cause a current shunting event when probe 2 comes into contact with the leak. This current shunting will affect the current in the other branch, which in turn will affect the voltage across the specific electrical component on that branch. The voltage value across this specific electrical component and the duration of this voltage value are measured and compared with a set value. Specifically, the measured voltage value is compared with the set voltage value, and the duration of the measured voltage value is compared with the set duration. If both comparison conditions are met, the water heater is considered to be leaking; otherwise, it is considered not to be leaking.

[0054] When the water heater is not leaking, probe 2 does not contact the leak, so there is an open circuit between the two probes 2. The parallel branch containing probe 2, i.e., the detection unit branch, is actually open, so there is no current in this branch. However, the other parallel branch, i.e., the output unit branch, is a closed circuit. When the water heater is leaking, probe 2 contacts the leak, so a closed circuit is formed between the two probes 2. The parallel branch containing probe 2, i.e., the detection unit branch, becomes a closed circuit, and some current is diverted from the main circuit. This causes a decrease in the current in the other parallel branch, i.e., the output unit branch. Consequently, the voltage across a specific electrical component in this output unit branch decreases. When the detected voltage value is less than or equal to the set voltage value, and the duration of this detected voltage value is greater than the set duration, it is determined that the water heater is leaking.

[0055] In this embodiment, when the probe is not in contact with water and the circuit is broken, the collected ADC voltage value is approximately 3V. When the probe contacts water and forms a circuit, the collected ADC voltage value is approximately 0.6-0.8V. Considering different water qualities and to prevent false triggering, the voltage value is set to 1V, and the set duration is 3s. Therefore, the judgment condition is that if the collected ADC voltage value is less than 1V and lasts for more than 3s, it is judged that the water heater is leaking.

[0056] like Figure 3 As shown, to ensure the safe operation of the water heater, when a leak is detected, the relay inside the water heater trips, cutting off the power to the heating element and preventing the water inside from becoming electrified, thus avoiding the risk of electric shock. When there is no leak, the water heater continues to display the water temperature and detect leaks.

[0057] To enable users to understand the water heater leakage situation more intuitively and promptly, and to take timely action to avoid danger, when a water heater leakage is detected, the water heater display panel will show a leakage warning and / or notify the user through sound, light, or remote prompts.

[0058] To allow the leak detection module to be installed or not, the detection module only collects the voltage value and converts it into an ADC value, which is then communicated to the water heater control unit via BUS. The judgment condition is determined by the water heater control unit. When the leak detection module is not installed, all other functions of the water heater will be executed normally, except for the leak alarm function.

[0059] Without the detection module installed, all functions except the water leak alarm function will work normally.

[0060] This invention discloses a water heater with leakage detection function and a method for detecting and handling leakage. The water heater includes a leakage detection module and a probe. The leakage detection module includes a detection unit and an output unit, with the branch containing the detection unit and the branch containing the output unit connected in parallel. The probe is connected to the detection unit of the leakage detection module, and when the probe contacts a leak, it creates a circuit in the branch containing the detection unit. By using the probe and leakage detection module, leakage can be effectively detected. This invention also provides a method for detecting and handling leakage in a water heater. The method utilizes the aforementioned equipment to collect the voltage across a specific electrical component on a branch connected in parallel with the probe. The voltage value and its duration are compared with a corresponding set value to determine whether a leak has occurred and to take appropriate action, effectively preventing leakage and blocking electrical leakage.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water heater with a leak detection function, characterized in that: Includes a leak detection module and probes. The water leakage detection module includes a detection unit and an output unit. The branch where the detection unit is located and the branch where the output unit is located are connected in parallel. The probe connects to the detection unit of the leak detection module and creates a path in the branch where the detection unit is located when the probe comes into contact with the leak.

2. A water heater with leakage detection function according to claim 1, characterized in that: The leakage detection module also includes a voltage acquisition circuit, which is connected to the two ends of a specific electrical component on the branch where the output unit is located.

3. A water heater with leakage detection function according to claim 2, characterized in that: The leak detection module also includes an analog-to-digital converter circuit, a voltage acquisition circuit connected to the analog-to-digital converter circuit, and the analog-to-digital converter circuit connected to the water heater control unit via BUS communication.

4. A water heater with leakage detection function according to claim 3, characterized in that: The leakage detection module contains two parallel capacitors in the branch where the detection unit is located, a diode in the branch where the output unit is located, and two capacitors and a Zener diode in the voltage acquisition circuit.

5. A water heater with leakage detection function according to claim 1, characterized in that: The probe is located in the lower part of the electrical room.

6. A water heater with leakage detection function according to claim 1, characterized in that: A water tank is installed in the lower part of the electrical room, and the probe is located in the water tank.

7. A method for detecting and handling water leaks in a water heater with a leak detection function, characterized in that: The voltage across a specific electrical component in a parallel branch is collected and compared with the voltage value and its duration to determine whether a leak has occurred.

8. A method for detecting and handling water leaks in a water heater with a leakage detection function according to claim 7, characterized in that: If the detected voltage value is less than or equal to the set voltage value, and the duration of this voltage value is greater than the set duration, it is determined that the water heater is leaking.

9. A method for detecting and handling water leaks in a water heater with a leakage detection function according to claim 7, characterized in that: When a leak is detected in the water heater, the relay inside the water heater disconnects, cutting off the power to the heating element.

10. A method for detecting and handling water leaks in a water heater with a leakage detection function according to claim 9, characterized in that: When a water heater leak is detected, the water heater display panel will show a leak warning and / or alert the user through sound, light, or remote means.

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