Water dispenser with leakage protection function

Abstract

The utility model discloses a water dispenser with a leakage protection function, the water dispenser comprises a control mainboard, a magnetic ring and a relay, the control mainboard is provided with a magnetic ring interface and a relay interface, the magnetic ring interface is connected with the magnetic ring, and the relay interface is connected with the relay; the relay is connected with a heating assembly of the water dispenser and a power cable, the power cable penetrates through the magnetic ring, and the magnetic ring is used for enabling the voltage of a magnetic ring interface to change based on the change of the current in the power cable when the water dispenser leaks electricity or is short-circuited; when the control mainboard detects that the voltage change of the magnetic ring interface exceeds a preset threshold value, the relay is controlled to be disconnected. The water dispenser with the electric leakage protection function can play a role in protecting electric leakage and short circuit of a circuit, and is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of water drinking machines, and more particularly to a water drinking machine with a leakage protection function. Background Art

[0002] Water dispensers are devices that heat or cool drinking water. They are typically installed in public places, offices, schools, hospitals, and homes, providing users with drinking water at various temperatures, including cold, hot, and room temperature. As living standards improve, people are increasingly concerned about the health and safety of drinking water. As convenient and hygienic drinking water devices, water dispensers are experiencing continued market demand and have become an essential part of modern life. However, most water dispenser motherboards on the market only have a single short-circuit protection mechanism and lack leakage protection, resulting in poor safety. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a water dispenser with a leakage protection function, which can protect against circuit leakage and short circuit, and is safe and reliable.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a water dispenser with a leakage protection function, the water dispenser includes a control mainboard, a magnetic ring and a relay, the control mainboard is provided with a magnetic ring interface and a relay interface, the magnetic ring interface is connected to the magnetic ring, and the relay interface is connected to the relay; the relay is respectively connected to the heating component and the power cable of the water dispenser, and the power cable passes through the magnetic ring, and the magnetic ring is used to change the voltage of the magnetic ring interface based on the change of current in the power cable when leakage or short circuit occurs in the water dispenser; when the control mainboard detects that the voltage change of the magnetic ring interface exceeds a preset threshold, the control relay is disconnected.

[0005] In a preferred technical solution, the magnetic ring interface is a constant voltage interface.

[0006] In a preferred technical solution, the water dispenser also includes an intelligent display screen; a display screen interface is provided on the control main board, and the display screen interface is connected to the intelligent display screen via a signal cable.

[0007] In a preferred technical solution, the water dispenser further includes a germicidal lamp; a germicidal lamp interface is provided on the control main board, and the germicidal lamp interface is connected to the germicidal lamp.

[0008] In a preferred technical solution, the water dispenser further includes a filter; a filter interface is provided on the control main board, and the filter interface is connected to the filter.

[0009] In a preferred technical solution, the water dispenser further includes a water level sensor; a water level sensor interface is provided on the control main board, and the water level sensor interface is connected to the water level sensor.

[0010] In a preferred technical solution, the water dispenser further includes a plurality of solenoid valves; a plurality of solenoid valve control interfaces are provided on the control main board, and the plurality of solenoid valve control interfaces are respectively connected to the plurality of solenoid valves.

[0011] It can be seen from the above technical solution that compared with the existing technology, the beneficial effect of the utility model is: a water dispenser with leakage protection function monitors the current in the power cable through a magnetic ring, and promptly controls the relay to disconnect when leakage or short circuit occurs, which can protect the circuit from leakage and short circuit, is safer and more reliable, and at the same time, has a simple structure and is easy to install.

[0012] In addition, other advantages of the present invention will be given in the following description, and some will become apparent from the following description or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the water dispenser of the utility model;

[0015] Explanation of the accompanying symbols: 1. Control main board; 2. Magnetic ring; 3. Relay; 4. Power cable; 5. Heating component; 6. Smart display; 11. Display interface; 12. Magnetic ring interface; 13. Relay interface; 14. Sterilization lamp interface; 15. Filter interface; 16. Water level sensor interface; 17. Solenoid valve control interface. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0018] In one embodiment, if Figure 1 As shown, a water dispenser with leakage protection includes a control board 1, a magnetic ring 2, and a relay 3. The control board 1 is provided with a magnetic ring interface 12 and a relay interface 13. The magnetic ring interface 12 is connected to the magnetic ring 2, and the relay interface 13 is connected to the relay 3. The relay 3 is respectively connected to the water dispenser's heating element 5 and the power cable 4. The power cable 4 passes through the magnetic ring 2. The magnetic ring 2 is used to change the voltage of the magnetic ring interface 12 based on the current in the power cable 4 when the water dispenser leaks or shorts. When the control board 1 detects that the voltage change of the magnetic ring interface 12 exceeds a preset threshold, the relay 3 is controlled to disconnect.

[0019] The heating element 5 is used to heat the water in the water dispenser. The power cable 4 can be the water dispenser's power supply line, used to connect to the water dispenser's external power supply. One end of the relay 3 is connected to the power cable 4, and the other end is connected to the heating element 5, thereby providing power to the heating element 5. The control board 1 is electrically connected to the magnetic ring 2 via the magnetic ring interface 12, and is connected to the relay 3 via the relay 3 electrical interface to achieve on-off control of the relay 3.

[0020] When a water dispenser experiences a leakage or short circuit, the current in the power cable 4 increases. Under electromagnetic induction, the magnetic ring 2 senses the change in current in the power cable 4 and, based on this change, changes the voltage at the magnetic ring interface 12. When the control board 1 detects that the voltage change at the magnetic ring interface 12 exceeds a preset threshold, it activates a safety protection mechanism, disconnects the relay 3, and stops the heating element 5, thereby improving the safety of the water dispenser. The control board 1 and relay 3 can be found on existing water dispensers. The magnetic ring 2 can be added to the power cable 4 of existing water dispensers, thereby utilizing the electromagnetic induction properties of the magnetic ring 2 to implement leakage and short-circuit protection.

[0021] The above embodiment provides a water dispenser with leakage protection function, which monitors the current in the power cable 4 through the magnetic ring 2, and promptly controls the relay 3 to disconnect when leakage or short circuit occurs, thereby protecting the circuit from leakage and short circuit, making it safer and more reliable. At the same time, it has a simple structure and is easy to install.

[0022] In this embodiment, the magnetic ring interface 12 is a constant voltage interface. The constant voltage interface can provide a constant voltage to the magnetic ring 2. When the water dispenser is operating normally without leakage or short circuit, the current in the power cable 4 is stable, and the magnetic ring 2 also maintains a stable current. At this time, the voltage of the magnetic ring interface 12 is stable. Once leakage or short circuit occurs in the water dispenser, the current in the power cable 4 increases significantly, and the current in the magnetic ring 2 changes accordingly under the influence of electromagnetic induction, causing the voltage of the magnetic ring interface 12 to change. The control board 1 can detect the voltage change. When the detected voltage change exceeds a preset threshold, it is determined that leakage or short circuit has occurred, and the control relay 3 is disconnected to protect the safety of the water dispenser.

[0023] In this embodiment, the water dispenser further includes an intelligent display screen 6; a display screen interface is provided on the control main board 1, and the display screen interface is connected to the intelligent display screen 6 via a signal cable. The intelligent display screen 6 can be provided on the housing of the water dispenser. In order to facilitate user operation, the intelligent display screen 6 is preferably a touch screen.

[0024] In this embodiment, the water dispenser also includes a germicidal lamp. A germicidal lamp interface 14 is provided on the control board 1 and is connected to the germicidal lamp. The germicidal lamp can be placed at the water inlet or outlet of the water dispenser, or in the middle of the circulating waterway, and can quickly kill pathogens in the water, thereby improving water quality.

[0025] In this embodiment, the water dispenser also includes a filter; a filter interface 15 is provided on the control main board 1, and the filter interface 15 is connected to the filter. Among them, the filter can adopt an RO machine, that is, a reverse osmosis water purifier (Reverse Osmosis Water Purifier), which is a device that filters raw water through reverse osmosis technology to remove impurities, heavy metals, bacteria, viruses and other harmful substances in the water. The working principle of the RO machine is based on a reverse osmosis membrane. This membrane selectively allows water molecules to pass through, while preventing macromolecular substances such as solutes, colloids, bacteria, viruses, etc. from passing through, thereby achieving the purpose of purifying water. The RO machine usually adopts a multi-stage filtration system, including PP cotton filter element, granular activated carbon filter element, compressed activated carbon filter element, RO reverse osmosis membrane and post-activated carbon filter element, etc., to ensure the safety and purity of water quality.

[0026] In this embodiment, the water dispenser further includes a water level sensor. A water level sensor interface 16 is provided on the control board 1 and is connected to the water level sensor. The water level sensor is a water level probe that can be installed in the water tank of the water dispenser to monitor the water level in the tank and prevent dry boiling.

[0027] In this embodiment, the water dispenser further includes multiple solenoid valves; the control mainboard 1 is provided with multiple solenoid valve control interfaces 17, each of which is connected to a corresponding solenoid valve. The multiple solenoid valves may include a pressure relief solenoid valve, a water outlet solenoid valve, an emptying solenoid valve, a disinfection solenoid valve, a flushing solenoid valve, and a water inlet solenoid valve. The corresponding multiple solenoid valve control interfaces 17 include a pressure relief solenoid valve control interface 17, a water outlet solenoid valve control interface 17, an emptying solenoid valve control interface 17, a disinfection solenoid valve control interface 17, a flushing solenoid valve control interface 17, and a water inlet solenoid valve control interface 17.

[0028] In the above embodiment, the specific structures, installation positions and connection structures of the intelligent display screen 6, the germicidal lamp, the filter, the water level sensor and the solenoid valves are all prior art and will not be described in detail here.

[0029] Other structures and operations of the water dispenser with leakage protection function according to the embodiment of the present invention are known to ordinary technicians in this field and will not be described in detail here.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In the description of this specification, the reference terms "embodiment", "specific embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present invention.

[0032] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined with each other in any suitable manner in any one or more embodiments or examples without interference or contradiction.

[0033] Materials or features may be combined with each other in any suitable manner in any one or more embodiments or examples without interference or inconsistency.

Claims

1. A water dispenser with leakage protection function, characterized by: The water dispenser includes a control mainboard, a magnetic ring and a relay. The control mainboard is provided with a magnetic ring interface and a relay interface. The magnetic ring interface is connected to the magnetic ring, and the relay interface is connected to the relay. The relay is respectively connected to the heating component and the power cable of the water dispenser. The power cable passes through the magnetic ring. The magnetic ring is used to change the voltage of the magnetic ring interface based on the change of the current in the power cable when the water dispenser leaks or shorts. When the control mainboard detects that the voltage change of the magnetic ring interface exceeds a preset threshold, the control mainboard controls the relay to be disconnected.

2. The water dispenser with leakage protection function according to claim 1, characterized in that: The magnetic ring interface is a constant voltage interface.

3. The water dispenser with leakage protection function according to claim 2, characterized in that: The water dispenser also includes an intelligent display screen; a display screen interface is provided on the control main board, and the display screen interface is connected to the intelligent display screen via a signal cable.

4. The water dispenser with leakage protection function according to claim 2, characterized in that: The water dispenser further includes a germicidal lamp; a germicidal lamp interface is provided on the control main board, and the germicidal lamp interface is connected to the germicidal lamp.

5. The water dispenser with leakage protection function according to claim 2, characterized in that: The water dispenser further comprises a filter; a filter interface is provided on the control main board, and the filter interface is connected to the filter.

6. The water dispenser with leakage protection function according to claim 2, characterized in that: The water dispenser further comprises a water level sensor; a water level sensor interface is provided on the control main board, and the water level sensor interface is connected to the water level sensor.

7. The water dispenser with leakage protection function according to claim 2, characterized in that: The water dispenser further comprises a plurality of solenoid valves; a plurality of solenoid valve control interfaces are provided on the control main board, and the plurality of solenoid valve control interfaces are respectively connected to the plurality of solenoid valves.

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