A kettle and control circuit therefor

Abstract

The utility model relates to domestic appliance technical field, and disclose a kind of hot water kettle control circuit, including first power supply interface, for the coupler being set in the bottom of kettle body, for accessing first power supply, the first power supply is external ac power supply;Second power supply, it is located in the independent installation space of kettle body pre-set, the independent installation space only accommodates second power supply and the wire electrically connected with it, provides operating power for water outlet related components;The present application breaks through the limitation of traditional hot water kettle relying on external power supply, realizes the automatic water outlet function after power failure by second power supply, user can flexibly move hot water kettle to bedside, desktop and other scenes, improve the convenience of use, especially adapt to the needs of people with difficulty in movement, and through the three-layer plate structure of hot water kettle handle, independent wiring channel and perforated partition design, realize the orderly arrangement and isolation of circuit, battery stability is enhanced by clamping plate and positioning plate, improve product safety and durability.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a kettle and its control circuit. Background Technology

[0002] Water heating and dispensing devices (such as electric kettles and countertop water dispensers) are common appliances in homes, offices, and public places. Their convenient heating and dispensing functions greatly satisfy people's daily drinking water needs. These devices typically integrate heating modules and water dispensing control components, allowing users to obtain hot water with simple operation. They have become an important tool for improving the convenience of drinking water in modern life.

[0003] As users demand greater flexibility, the power supply mode of traditional heated water dispensers is gradually revealing its limitations: the automatic water dispensing function of existing devices generally relies on a continuous external power supply. Its core working logic is that the pump and other water dispensing components can only be driven to automatically dispense water when connected to an external power source. This severely restricts the device's usage to the vicinity of the power interface, requiring users to actively go to the device's location to collect water. It is difficult to adapt to the need for temporary water dispensing and cannot be flexibly moved to the user's desired scenario (such as bedside, office desk, etc.), which is especially unfriendly to people with mobility impairments or those who need to move the device temporarily. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a kettle and its control circuit, ensuring automatic water dispensing via backup power when the external power supply is disconnected, and offering multiple flexible power supply connection methods.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A kettle control circuit, characterized in that it includes: The first power interface is a coupler located at the bottom of the kettle body, used to connect to a first power source, which is an external AC power source. The second power source is located in a pre-designed independent installation space on the kettle body. The independent installation space only accommodates the second power source and the wires electrically connected to it, providing working power to the water outlet-related components. The control unit is a control circuit board mounted on the kettle body, which is connected to the first power interface and the second power source respectively. The water dispensing drive module, connected to the control unit, is used to drive the kettle to automatically dispense water. The control panel, connected to the control unit, is used to receive user commands; The control unit is configured as follows: When the first power interface is connected to an external AC power source, it should at least supply power to the heating element on the kettle. At least in the event of a power outage of the first power source, the second power source provides operating power to the water outlet drive module, control panel, and control unit. The water outlet drive module can be controlled via the control panel to achieve automatic water outlet control.

[0006] Preferably, the second power source is a rechargeable battery, which is connected to the first power interface and the control unit; When the first power source is connected, it supplies power to the heating components and replenishes the battery. The battery can also supply power to the water outlet drive module, control panel, LEDs and control unit. When the first power supply is disconnected, the battery supplies power to the water outlet drive module, control panel, control unit, and LEDs.

[0007] Preferably, the second power source is a removable and replaceable battery. The control circuit board is provided with a backup power interface. The battery is electrically connected to the backup power interface of the control circuit board through an independent power supply interface to form an independent power supply circuit. The contacts of the independent power supply interface are in contact with the electrodes of the battery. The control circuit board can conduct the second power supply path when the first power source is disconnected and the battery is installed in place.

[0008] Preferably, the power supply is achieved through multiple circuit connection methods, and in all connection methods, when the first power supply is disconnected, the battery independently supplies power to the water outlet drive module, control panel, control unit, and light-emitting diode.

[0009] Preferably, the kettle body is also provided with a temperature detection unit for detecting water temperature and a light-emitting diode for displaying water temperature, and both are connected to the control unit. The temperature detection unit is a thermistor, and its two ends are connected to the input port of the control unit through detection lines. The water outlet drive module is a pump, and its motor wires are connected to the control unit.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention breaks through the limitations of traditional kettles that rely on external power sources. By using a second power source, it enables automatic water dispensing after a power outage. Users can flexibly move the kettle to bedside tables, desktops, and other locations, improving ease of use, especially catering to the needs of people with mobility impairments. In addition, multiple power connection methods are available to suit different scenarios. The rechargeable battery option allows charging when connected to an external power source, eliminating the need to replace the battery and ensuring daily use. The removable battery option facilitates quick battery replacement to restore functionality when charging is unavailable. Furthermore, the kettle's handle has an independent installation space for the battery, making it easy for users to replace the battery during maintenance or replacement. The overall design of this application balances functionality and practicality, comprehensively optimizing the kettle's mobility, stability, and adaptability. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a view showing the battery position of this utility model; Figure 4 This is a cross-sectional view of the handle of this utility model; Figure 5 This is an exploded view of the grip structure of this utility model; Figure 6 For the present utility model Figure 5 Enlarged view at point A in the middle; Figure 7 This is a positional view of the positioning plate of this utility model; Figure 8 This is a view showing the position of the control circuit board and coupler of this utility model; Figure 9 This is the schematic diagram of the control circuit of this utility model.

[0013] Figure number explanation: 1. Kettle body; 11. Enclosure; 12. Divider end; 13. Perforation 1; 2. Heater; 3. Coupler; 4. Pump; 5. Control circuit board; 6. Handle; 61. Inner plate; 62. Covering plate; 63. Outer plate; 64. Wiring channel; 65. Perforation 2; 66. Mounting plate; 67. Positioning plate; 7. Battery; 8. Light-emitting diode; 9. Thermistor. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0016] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0017] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0018] Please see Figure 1 A kettle control circuit, comprising: The first power interface is a coupler 3 located at the bottom of the kettle body 1, used to connect to the first power source, which is an external AC power source. The second power source is located in a pre-set independent installation space on the kettle body 1. The independent installation space only accommodates the second power source and the wires electrically connected to it, providing working power to the water outlet related components. The control unit is a control circuit board 5 mounted on the kettle body 1, which is connected to the first power interface and the second power source respectively. The water dispensing drive module, connected to the control unit, is used to drive the kettle to automatically dispense water. The control panel, connected to the control unit, is used to receive user commands; The control unit is configured as follows: When the first power interface is connected to an external AC power source, it shall at least supply power to the heating element; At least in the event of a power outage of the first power source, the second power source provides operating power to the water outlet drive module, control panel, and control unit. The water outlet drive module can be controlled via the control panel to achieve automatic water outlet control.

[0019] The second power source is a rechargeable battery 7, which is connected to the first power source interface and the control unit. When the first power source is connected, it supplies power to the heating component and replenishes the battery 7. The battery 7 can also supply power to the water outlet drive module, control panel, LED 8 and control unit. When the first power supply is disconnected, the battery 7 supplies power to the water outlet drive module, control panel, control unit and LED 8.

[0020] The second power source is a removable and replaceable battery 7. The control circuit board 5 is equipped with a backup power interface. The battery 7 is electrically connected to the backup power interface of the control circuit board 5 through an independent power supply interface to form an independent power supply circuit. The contacts of the independent power supply interface are in contact with the electrodes of the battery 7. The control circuit board 5 can conduct the power supply path of the second power source when the first power source is disconnected and the battery is installed in place.

[0021] It has multiple circuit connection methods to achieve power supply, and in all connection methods, when the first power supply is disconnected, the battery 7 independently supplies power to the water outlet drive module, control panel, control unit and light-emitting diode 8.

[0022] The kettle body 1 is also equipped with a temperature detection unit for detecting water temperature and a light-emitting diode 8 for displaying water temperature. Both are connected to the control unit. The temperature detection unit is a thermistor 9, and its two ends are connected to the input port of the control unit through detection lines. The water outlet drive module is a pump 4, and its motor wires are connected to the control unit.

[0023] Please see Figures 2-9 A kettle includes a kettle body 1, a handle 6 on the kettle body 1, a coupler 3 for electric heating at the bottom of the kettle body 1, a control circuit board 5, a heater 2, a water outlet drive module and a temperature detection unit inside the bottom, the heater 2 is connected to the heating output terminal of the control circuit board 5 through a wire, and the temperature detection unit is connected to the control circuit board 5 through a conduit. The handle 6 is composed of an inner plate 61, a covering plate 62, and an outer plate 63. The inner plate 61 is provided with a wiring channel 64 for the power cord to pass through. The wiring channel 64 has end plates on both sides for limiting the position. The control panel is located on the body 1 and is connected to the control circuit board 5 through the wiring channel 64. The independent installation space formed by the covering plate 62 and the outer plate 63 is only used to house the second power supply and its connected wires. The wires are connected to the bottom control circuit board 5 through the independent channel between the second power supply and the through hole 13. The independent installation space only accommodates the second power supply and its connected wires, and is physically isolated from other functional modules. When the user replaces or maintains the second power supply, there is no need to touch other lines, which can avoid malfunctions caused by pulling or accidentally touching other wires. Especially in the scenario of quick replacement of the removable battery 7, it can better replace the battery 7. The second power source, an energy storage device, is located between the cover plate 62 and the outer plate 63. The cover plate 62 has mounting plates 66 at the upper and lower ends of the second power source. The second power source is connected to the control circuit board 5 through wires passing through through holes 13 and 65. There is a through hole 13 on the side of the kettle body 1 facing the handle 6, and a through hole 65 on the upper end of the inner plate 61. The positions of through holes 13 and 65 correspond and are connected by a wire channel. This defines the basic structure of the kettle body 1 and the handle 6, as well as the integration method of the bottom core components such as the coupler 3, the control circuit board 5, and the heater 2, ensuring the coordination of the circuit and structure. It specifies the design of the three-layer board of the handle 6: inner plate 61, cover plate 62, and outer plate 63. The wiring channel 64 enables the orderly arrangement of the circuit. The end plate ensures the stability of the circuit. By standardizing the circuit layout and power supply installation, the safety and reliability of the product are improved.

[0024] When the second power source is a rechargeable battery 7, the control circuit board 5 is connected to the coupler 3 on the kettle and the battery 7 via wires. When the first power source is connected, it supplies power to the heater 2 and replenishes the battery 7. The battery 7 supplies power to the control panel, the control circuit board 5, and the water outlet drive module. The cover plate 62 is provided with mounting plates 66 located at both ends of the battery 7, and the outer plate 63 is provided with a positioning plate 67 that holds the battery 7 between the two mounting plates 66. This realizes integrated management of charging and power supply of the rechargeable battery 7, ensuring efficient energy distribution when the first power source is connected and continuous backup power supply after power failure. The multiple fixing structure of the mounting plate 66 and the positioning plate 67 avoids poor contact of the battery 7 due to vibration or tilt, improves power supply stability, and enhances the ease of use and durability of the product.

[0025] When the second power source is a removable and replaceable battery 7, a battery compartment 7 is provided between the cover plate 62 and the outer plate 63 of the handle 6. The battery compartment 7 has an independent power supply interface corresponding to the second power source. This interface is electrically connected to the control circuit board 5 through wires. The electrodes of the battery 7 make contact with the contacts of the independent power supply interface. The battery compartment 7 and the independent power supply interface in the handle 6 enable convenient installation and removal of the battery 7. Users can quickly restore the backup power supply function by replacing the battery 7, which is especially suitable for scenarios without charging conditions. The design of the independent power supply interface and battery compartment not only ensures the stability of the power supply contact, but also simplifies the replacement operation and improves the adaptability and ease of use of the product.

[0026] Thermistor 9 is located inside the kettle body 1. Thermistor 9 is connected to the control circuit board 5 through wires. The input terminal of the pump 4 is connected to the inside of the kettle body 1 through the water inlet pipe. The output terminal of the pump 4 is connected to the water outlet through the water outlet pipe. The pump 4 is connected to the control circuit board 5 through wires. The design of thermistor 9 being built into the kettle body 1 and connected to the control circuit board 5 through wires ensures the accuracy of water temperature detection. The pump 4 draws hot water from the kettle to the water outlet through the water inlet pipe and releases it from the water outlet.

[0027] A surrounding plate 11 is provided on the outer side of the bottom of the kettle body 1. The surrounding plate 11 has a dividing end 12 that separates the perforation 13. The dividing end 12 divides the perforation 13 into two parts, through which wires connecting the control panel and the control circuit board 5 and the second power supply and the control circuit board 5 pass. The inner plate 61, the covering plate 62 and the outer plate 63 of the handle 6 form independent wiring channel 64 chambers and a second power supply chamber. The surrounding plate 11 is fixedly connected to the bottom of the kettle body 1. The mounting plate 66 and the covering plate 62 are integrally formed. The structural partitioning strengthens the isolation protection between the circuit and the second power supply, reduces mutual interference, and the integrally formed mounting plate 66 and the fixed surrounding plate 11 improve the overall structural rigidity. Its outer plate 63 and the positioning plate 67 are also integrally formed to improve the overall rigidity, avoid loose parts or abnormal noise, extend the service life of the product, and enhance the user's grip comfort.

[0028] Its first power interface is a coupler 3 located at the bottom of the kettle body 1. The input end of the coupler 3 is used to connect with external current, and its output end is connected to the power input end of the control unit and the power input end of the heating element through wires respectively.

[0029] When in use, the second power source can be a storage battery 7, which is connected to the control unit via wires. Specifically, the storage battery 7 is connected to the control unit, and the first power interface can be connected to the storage battery 7 through the control unit to charge the storage battery 7.

[0030] Its control unit adopts a control circuit board 5 with an integrated microprocessor. The kettle body 1 also has a light-emitting diode 8 to display the water temperature. The light-emitting diode 8 can be an LED dot matrix screen. The control unit can display the water temperature in the kettle body 1. The control circuit board 5 is connected to the first power interface, the second power connection, the pump 4, the thermistor 9, the control panel and the light-emitting diode 8 respectively. The first power interface and the second power connection are electrically connected to the control circuit board 5 through wires to introduce power into the control circuit board 5 to power the other components. The control panel can send commands to the circuit control board. The control circuit board 5 can receive user command signals from the control panel and control the pump 4 to work according to the commands.

[0031] The water outlet drive module is a pump 4, which can be a micro water pump. The input end of the pump 4 is electrically connected to the control circuit board 5 through a wire. The pump 4 receives power from the second power source through the circuit control board. The water inlet end of the pump is connected to the inside of the kettle body 1 through the water inlet pipe, and the water outlet end of the pump is connected to the water outlet on the kettle body 1 through the water outlet pipe.

[0032] The control panel is equipped with a water outlet control button and a temperature display module. It contains a signal processing circuit. The power input terminal of the control panel is electrically connected to the power interface of the control circuit board 5 through a wire. The signal output terminal of the control panel is connected to the signal receiving terminal of the control circuit board 5 through a ribbon cable. The control panel can convert the user's operation commands into electrical signals and transmit them to the control circuit board 5.

[0033] Thermistor 9 can be used as a sensor to monitor water temperature. Its two ends are connected to the control circuit board 5 through detection lines. The control circuit board 5 can provide a weak power supply to thermistor 9 through the detection lines. Its second power supply is provided to it through the control circuit board 5.

[0034] The second power source uses a rechargeable battery 7. When an external AC power source is connected through the first power source interface, its control circuit board 5 can control the first power source to supply power to the heating component. This can be controlled through the control panel. When the control circuit board 5 supplies power to the heating component, the heating component can work to heat the water. When the first power source is connected, it can charge the battery 7 through the control circuit board 5 to replenish its power. At this time, the battery 7 of the second power source is in a charging state. Simultaneously, the battery 7 supplies power to the control unit, the water outlet drive module, the control panel, and the temperature detection unit. The battery 7 is in a state of simultaneous charging and discharging. The user sends a water outlet command to the control unit by operating the buttons on the control panel. After receiving the command, the control unit controls the water outlet drive module to work, realizing automatic water outlet. The temperature detection unit detects the water temperature in real time and transmits the water temperature signal to the control unit. The control unit can control the working status of the heating element according to the water temperature (such as stopping heating after reaching the set temperature). When the first power supply is disconnected, the battery 7 can continue to supply power to the control unit, water outlet drive module, control panel, and temperature detection unit. Users can still control the water outlet drive module to automatically dispense water through the control panel, ensuring that the automatic water dispensing function can still be used normally when the first power supply is disconnected. This allows users to remove the kettle after boiling the water and move it to the desired location. Furthermore, it can automatically dispense water even when the external power supply is disconnected, making it more convenient for users.

[0035] The bottom of the kettle body 1 is equipped with the aforementioned first power interface and control unit. The first power interface is used as a coupler 3, and the control unit is used as a control circuit board 5. The heating element is installed at the bottom inside the kettle body 1 and is connected to the control circuit board 5 through wires.

[0036] The handle 6 consists of an inner plate 61, a covering plate 62, and an outer plate 63. The wiring channel 64 on the inner plate 61 is used to accommodate the ribbon cable connecting the control panel and the control unit. The control panel is embedded in the kettle body 1 for easy operation by the user.

[0037] The second power source is a rechargeable battery 7, which is installed between the inner cover plate 62 and the outer plate 63 of the handle 6. The mounting plate 66 inside the cover plate 62 can limit and fix both ends of the battery 7, and the positioning plate 67 on the outer plate 63 holds the battery 7, improving the stability of the battery 7 after installation and effectively preventing it from shaking. The battery 7 is connected to the control circuit board 5 through the through hole 13 on the body 1 via a wire.

[0038] A surrounding plate 11 is provided on the outer side of the bottom of the pot body 1. The dividing end 12 on the surrounding plate 11 divides the through hole 13 into two parts, which are respectively used for the ribbon cable connecting the control panel and the control unit and the wire connecting the second power supply and the control unit to pass through, so as to avoid mutual interference between the lines. Example

[0039] In this embodiment, the second power source is also a rechargeable battery 7, but it adopts a different circuit connection method. The core is that when the first power source is connected, all power is first input to the control unit, which then distributes it to each functional module and the charging process of the battery 7. The control unit is a control circuit board 5 with a power switching circuit, and the power supply switching is realized through the power switching module switching circuit in the control unit, as detailed below: The coupler 3 at the bottom of the kettle body 1 has its first power interface connected to an external AC power source. The output of the first power interface is connected to the first power input terminal of the control unit via a single main line. The control unit integrates a power distribution circuit, which divides the input first power source into multiple controlled outputs. The first route: The heating output terminal of the control unit is connected to the heating component via a wire, and the control unit controls the on / off state of the heating component circuit; The second route connects to the water outlet drive module, control panel, temperature detection unit, and LED 8 via the functional power output terminal of the control unit, and is powered by the power switching module. The third route: its battery 7 has a charging interface and a power supply interface. The control unit's charging output terminal is connected to the charging interface of the battery 7, which can replenish the battery 7 with power.

[0040] The charging interface of battery 7, i.e. the positive and negative leads of battery 7, is connected to the backup power input of the control unit through wires. It is only used to output electrical energy to power the control unit, water outlet drive module, control panel, temperature detection unit and light-emitting diode 8. The two interfaces on battery 7 are independent and separate, and the charging and power supply paths do not interfere with each other. This ensures that the first power source can charge battery 7 through the charging interface, and also ensures that battery 7 can output electrical energy to the control unit through the power supply interface.

[0041] The power switching module on its control unit (control circuit board 5) can be a relay or a MOSFET during use. When the control unit detects current input from the first power source, it determines that the first power source is valid and uses it as the priority power source. The power switching module switches to the first power source to power the load. When the first power source is supplying power, the control unit simultaneously replenishes the battery 7 with power. When the control unit detects no voltage input after the first power source is switched, i.e., the external power source is disconnected, it immediately switches to the battery 7 to supply power, and conducts the backup power circuit. The electrical energy of the battery 7 enters the control unit through the power supply interface, and after voltage regulation, it flows through the control unit to the water outlet drive module, control panel, temperature detection unit and the control unit itself. At this time, the heating component stops working due to the disconnection of the first power source, but the battery 7 continues to supply power to the control and water outlet components. The user can still control the automatic water outlet through the control panel to ensure that the automatic water outlet function can still be used normally when the first power source is disconnected. Example

[0042] The second power source uses a removable and replaceable battery 7, as detailed below: Its first power interface is the same as that in Embodiment 1 above. Its output end is connected to the control unit and the heating component through a wire, and only supplies power to the heating component.

[0043] A battery compartment for housing the battery 7 is provided at the position of the handle 6. The battery 7 is installed in the battery compartment and has an independent power supply interface. This interface is connected to the control unit through a wire. The electrodes of the battery 7 make contact with the contacts of the independent power supply interface to form a power supply circuit. The closable battery compartment can be located between the cover plate 62 and the outer plate 63 of the handle 6. The battery compartment has a cover plate, which can be connected to the outer plate 63 through a snap-on or sliding cover structure. The battery compartment has metal contacts corresponding to the electrodes of the battery 7 to ensure reliable contact between the electrodes and the contacts after the battery 7 is installed.

[0044] When in use, the control circuit is a control circuit board 5 with detection circuit function, which can be used to detect whether the battery 7 is installed in place. This is achieved by detecting whether the contacts of the independent power supply interface are conductive. When the second battery 7 is installed in place, the control unit supplies power to the water outlet drive module, control panel, temperature detection unit and the control unit itself through the second power supply. The composition and connection relationship of the water outlet drive module, control panel and temperature detection unit are similar to those in Embodiment 1. Its first power supply supplies power to the heating component only through the control unit, and its second power supply supplies power to the water outlet drive module, control panel, temperature detection unit and the control unit itself.

[0045] When the first power supply is connected, it can power the heating element to boil water. Since the first power supply only powers the heating element, when the first power supply is disconnected, the second power supply powers the water dispensing drive module, control panel, temperature detection unit and control unit itself. Users can control the automatic water dispensing through the control panel when the kettle is moved to any location. Example

[0046] The second power source is a removable and replaceable battery 7. Its core logic is consistent with the power supply priority of Embodiment 2. When the first power source is turned on, it prioritizes powering all components, as follows: The input terminal of the coupler 3 (first power interface) at the bottom of the kettle body 1 is connected to an external AC power source, and its output terminal is connected to the first power input terminal of the control power source via a wire. The connection method of the first and second paths is the same as that in Embodiment 2, but the third path is removed to prevent charging of the battery 7. The battery 7 is a replaceable battery, which is installed in the battery compartment at the handle 6 as in Embodiment 3. The control unit is the same as in Embodiment 2, with a control circuit board 5 that has switching and detection functions. When the first power source is connected, the control unit detects that there is current input from the first power source, determines that the first power source is valid, and uses it as the priority power source. The power switching module then switches to the control circuit. The first power supply powers the load and supplies power to all components. When the first power supply is disconnected, it immediately switches to battery 7 as the second power supply to power the water outlet drive module, control panel, temperature detection unit, and control unit, thus activating the backup power circuit. The electrical energy from battery 7 enters the control unit through the power supply interface, and after voltage regulation, it flows through the control unit to the water outlet drive module, control panel, temperature detection unit, and the control unit itself. At this time, the heating component stops working due to the disconnection of the first power supply, but battery 7 continues to supply power to the control and water outlet components. Users can still control the automatic water outlet through the control panel, ensuring that the automatic water outlet function can still be used normally even when the first power supply is disconnected.

[0047] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A kettle control circuit, characterized in that, include: The first power interface is a coupler (3) located at the bottom of the kettle body (1) for connecting to a first power source, which is an external AC power source. The second power source is located in a pre-set independent installation space on the kettle body (1). The independent installation space only accommodates the second power source and the wires electrically connected to it, providing working power to the water outlet related components. The control unit is a control circuit board (5) installed on the kettle body (1), which is connected to the first power interface and the second power source respectively; The water dispensing drive module, connected to the control unit, is used to drive the kettle to automatically dispense water. The control panel, connected to the control unit, is used to receive user commands; The control unit is configured as follows: When the first power interface is connected to an external AC power source, it should at least supply power to the heating element on the kettle. At least in the event of a power outage of the first power source, the second power source provides operating power to the water outlet drive module, control panel, and control unit. The water outlet drive module can be controlled via the control panel to achieve automatic water outlet control.

2. The kettle control circuit according to claim 1, characterized in that: The second power source is a rechargeable battery (7), which is connected to the first power interface and the control unit; When the first power source is connected, it supplies power to the heating component and replenishes the battery (7) with power. The battery (7) can also supply power to the water outlet drive module, control panel, LED (8) and control unit. When the first power supply is disconnected, the battery (7) supplies power to the water outlet drive module, control panel, control unit and light-emitting diode (8).

3. The kettle control circuit according to claim 1, characterized in that: The second power source is a removable and replaceable battery (7). The control circuit board (5) is provided with a backup power interface. The battery (7) is electrically connected to the backup power interface of the control circuit board (5) through an independent power supply interface to form an independent power supply circuit. The contacts of the independent power supply interface are in contact with the electrodes of the battery (7). The control circuit board (5) can conduct the second power supply path when the first power source is disconnected and the battery is installed in place.

4. The kettle control circuit according to claim 1, characterized in that: It has multiple circuit connection methods to achieve power supply, and in all connection methods, when the first power supply is disconnected, the battery (7) provides power to the water outlet drive module, control panel, control unit and light-emitting diode (8) separately.

5. A kettle control circuit according to claim 4, characterized in that: The kettle body (1) is also provided with a temperature detection unit for detecting water temperature and a light-emitting diode (8) for displaying water temperature, and both are connected to the control unit. The temperature detection unit is a thermistor (9), and its two ends are connected to the input port of the control unit through detection lines. The water outlet drive module is a pump (4), and its motor wires are connected to the control unit.

6. A kettle based on the control circuit according to any one of claims 1-5, characterized in that, The kettle body (1) is provided with a handle (6) and a coupler (3) for electric heating is provided at the bottom of the kettle body (1). The bottom is provided with a control circuit board (5), a heater (2), a water outlet drive module and a temperature detection unit. The heater (2) is connected to the heating output terminal of the control circuit board (5) through a wire, and the temperature detection unit is connected to the control circuit board (5) through a conduit. The handle (6) is composed of an inner plate (61), a covering plate (62) and an outer plate (63). The inner plate (61) is provided with a wiring channel (64) through which the power cord passes. The wiring channel (64) is provided with end plates for limiting the position on both sides. The control panel is located on the kettle body (1) and is connected to the control circuit board (5) through the wiring channel (64) via a ribbon cable. The second power source is an energy storage device. The cover plate (62) and the outer plate (63) enclose an independent installation space. The second power source is installed in the independent installation space between the cover plate (62) and the outer plate (63). The cover plate (62) is provided with mounting plates (66) at the upper and lower ends of the second power source. The second power source is connected to the control circuit board (5) through wires passing through the first through hole (13) and the second through hole (65). The lower part of the pot body (1) facing the handle (6) is provided with a perforation 1 (13), and the upper end of the inner plate (61) is provided with a perforation 2 (65). The positions of the perforation 1 (13) and the perforation 2 (65) are corresponding and connected by a threading channel.

7. A kettle according to claim 6, characterized in that: When the second power source is a rechargeable battery (7), the control circuit board (5) is connected to the coupler (3) on the kettle body (1) and the battery (7) respectively through wires. When the first power source is connected, it supplies power to the heater (2) and replenishes the battery (7). The battery (7) supplies power to the control panel, the control circuit board (5) and the water outlet drive module. The cover plate (62) is provided with mounting plates (66) located at both ends of the battery (7). The outer plate (63) is provided with a positioning plate (67) that abuts against the battery (7) located between the two mounting plates (66).

8. A kettle according to claim 6, characterized in that: When the second power source is a removable and replaceable battery (7), a battery (7) compartment is provided between the cover plate (62) and the outer plate (63) of the handle (6). The battery (7) compartment is provided with an independent power supply interface corresponding to the second power source. This interface is electrically connected to the control circuit board (5) through a wire. The electrodes of the battery (7) are in contact with the contacts of the independent power supply interface.

9. A kettle according to claim 6, characterized in that: The thermistor (9) is located inside the kettle body (1). The thermistor (9) is connected to the control circuit board (5) through a wire. The input end of the pump (4) is connected to the inside of the kettle body (1) through the water inlet pipe. The output end of the pump (4) is connected to the water outlet through the water outlet pipe. The pump (4) is connected to the control circuit board (5) through a wire.

10. A kettle according to claim 6, characterized in that: The bottom of the pot body (1) is provided with a surrounding plate (11). The surrounding plate (11) is provided with a dividing end (12) that separates the first perforation (13). The dividing end (12) divides the first perforation (13) into two parts, which are respectively used for the wires connecting the control panel and the control circuit board (5) and the second power supply and the control circuit board (5). The inner plate (61), the covering plate (62) and the outer plate (63) of the handle (6) form independent wiring channel (64) chambers and second power supply chambers. The surrounding plate (11) is fixedly connected to the bottom of the pot body (1). The mounting plate (66) and the covering plate (62) are integrally formed structures.

Images