Electric water heater with time-division control power supply

Abstract

The utility model provides an electric water heater of time -sharing control power supply, its technical scheme is: including inner container and heating assembly, heating assembly sets up in the inside of inner container is used for heating the liquid in inner container, heating assembly is connected with fire line, zero line respectively, and with external power supply common constitutes the power supply loop, this loop still is equipped with power control module, timing module and interactive module, power control module is used for selectively making external power supply and heating assembly between electrification according to timing module set -up power supply time -sharing, (1) heating according to demand avoids energy waste, (2) preheating improves use convenience, (3) man -machine interactive experience optimization, operation is intuitive and adapts various needs, (4) temperature accurate control, further strengthens energy -saving effect and use experience, (5) heat -preserving layer synergistic effect, prolongs heat -preserving time -effect and reduces repeated heating.

Description

Technical Field

[0001] This utility model belongs to the technical field of household appliance equipment, and in particular relates to an electric water heater with time-segmented power control. Background Technology

[0002] In the dormitories provided to our employees, electric water heaters typically require users to manually turn them on or off. If users forget to turn them off, the water heater continues to heat, resulting in energy waste. If they turn them on just before using the water, they have to wait a long time for the water to heat up, which is inconvenient. Users' water usage needs are regular at different times (such as fixed times for washing and showering), but traditional electric water heaters cannot automatically control the power supply according to preset time periods, making it difficult to balance convenience and energy efficiency. Therefore, there is an urgent need for an electric water heater that can control the power supply according to time periods, adapting to users' water usage habits. Summary of the Invention

[0003] To address the problems of inconvenience and poor energy efficiency of existing electric water heaters, this utility model provides an electric water heater with time-segmented power control. The technical solution includes an inner tank and a heating element. The heating element is located inside the inner tank and is used to heat the liquid inside the tank. The heating element is connected to the live wire and the neutral wire, and together with the external power supply, they form a power supply circuit. This circuit is also equipped with a power control module, a timer module, and an interaction module. The power control module is used to selectively energize the external power supply and the heating element according to the power supply period set by the timer module.

[0004] In a preferred embodiment, the timing module is electrically connected to the interaction module and is used to receive at least one power supply period set by the user through the interaction module. The interaction module displays the set power supply period and heating status, and allows the user to perform human-computer interaction.

[0005] In a preferred embodiment, the interaction module further includes an input unit and a display unit, wherein the input unit is a button and / or a touch screen, and the display unit is an LCD display screen and / or LED indicator lights.

[0006] In a preferred embodiment, the heating assembly includes at least one heating element with a power of at least 2000W.

[0007] In a preferred embodiment, the inner liner is covered with an insulation layer, which is used to slow down the rate of heat loss from the liquid inside the inner liner.

[0008] In a preferred embodiment, the power control module is electrically connected to the temperature detection module, and the measuring end of the temperature detection module is in contact with the liquid inside the inner tank to measure the real-time temperature of the liquid and transmit the data to the power control module, so that the power control module can adjust the heating state according to the power supply period.

[0009] In a preferred embodiment, the external power supply is also grounded to prevent electric shock from the water heater casing, which could cause a safety accident.

[0010] The beneficial effects of this utility model are: (1) The timing module can receive multiple power supply periods preset by the user through the interaction module (such as fixed water usage periods such as morning and evening washing and bathing before bed). The power control module automatically controls the heating component to be powered on according to the preset time period, and only starts heating before water usage. It automatically cuts off power during non-water usage periods, avoiding the problem of traditional water heaters consuming energy continuously in standby mode or if they are forgotten to turn off, thus significantly reducing ineffective energy consumption. (2) The heating component starts automatically within a preset time period, which can heat the liquid in the inner tank before the user uses water. The user can use warm water without having to wait, eliminating the inconvenience of heating water before use and waiting for a long time, and adapting to the user's regular water use habits. (3) The input unit of the interactive module uses buttons and / or a touch screen, which allows users to easily set, modify and delete the power supply period without professional knowledge. Even users who are not familiar with smart devices can quickly master the operation method. The display unit uses an LCD screen or LED indicator to display the preset power supply period and the current heating status (heating / standby) in real time. Users can intuitively understand the operation of the equipment and avoid misjudgment or waiting due to not knowing whether it is heating. (4) The temperature detection module measures the liquid temperature inside the inner tank in real time and transmits it to the power control module. When the temperature reaches the user preset value (e.g., 50℃), the power control module will pause heating even if it is still in the power supply period. Heating will be restarted after the temperature drops to the set lower limit to avoid energy waste from continuous heating. Through temperature feedback adjustment, the liquid temperature inside the inner tank is kept within a suitable range during each water use period. It will not affect the use due to the low temperature, nor will it cause energy redundancy due to the high temperature, thus taking into account both comfort and energy saving. (5) The insulation layer on the outside of the inner tank can effectively slow down the rate of heat loss from the liquid. Even during non-heating periods, the water temperature can be maintained within a reasonable range. For example, after heating to a suitable temperature before going to bed, the insulation layer can keep the water temperature until the next morning, eliminating the need for repeated long-term heating the next day. This further reduces the frequency of heating and energy consumption, forming a heating-insulation energy-saving closed loop with time-segmented control. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] In the diagram: 1. Inner liner; 2. Heating assembly; 3. Power control module; 4. Timer module; 5. Live wire; 6. Interaction module; 7. Insulation layer; 8. Temperature detection module; 9. Neutral wire; 10. Ground wire. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Example like Figure 1 The electric water heater shown includes an inner tank 1 and a heating element 2. The heating element 2 is installed inside the inner tank 1 to heat the liquid in the inner tank 1. The heating element 2 is connected to the live wire 5 and the neutral wire 9 respectively, and together with the external power supply, it forms a power supply circuit. The circuit is also equipped with a power control module 3, a timer module 4 and an interaction module 6. The power control module 3 is used to selectively energize the external power supply and the heating element 2 according to the power supply period set by the timer module 4.

[0015] The power control module 3 is a microcontroller with a relay (such as SFK-112DM-E from Sanyou) (such as AT89C2051); the timing module 4 is a clock chip with power-off memory (such as DS3231); the external power supply is AC mains power (220V AC).

[0016] Furthermore, the timing module 4 is electrically connected to the interaction module 6 and is used to receive at least one power supply period set by the user through the interaction module 6. The interaction module 6 displays the set power supply period and heating status, and allows the user to perform human-computer interaction.

[0017] Furthermore, the interactive module 6 also includes an input unit and a display unit, wherein the input unit is a button and / or a touch screen, and the display unit is an LCD display screen and / or LED indicator lights.

[0018] Furthermore, the heating component 2 includes at least one heating element (such as a stainless steel heating element), and the power of the heating element is at least 2000W.

[0019] Furthermore, the inner liner 1 is covered with an insulation layer 7, which is used to slow down the heat loss rate of the liquid inside the inner liner 1, reduce the heat loss after heating during power supply, ensure that a certain water temperature can still be maintained during non-power supply periods, and improve energy utilization.

[0020] The aforementioned insulation layer 7 is preferably a polyurethane foam layer.

[0021] Furthermore, the power control module 3 is electrically connected to the temperature detection module 8, and the measuring end of the temperature detection module 8 is in contact with the liquid inside the inner tank 1 to measure the real-time temperature of the liquid and transmit the data to the power control module 3, so that the power control module 3 can adjust the heating state according to the power supply period.

[0022] The temperature detection module 8 mentioned above is an NTC sensor.

[0023] Furthermore, the external power supply is also connected to a ground wire 10 to prevent electric leakage from the water heater casing from causing a safety accident.

[0024] The operation of the electric water heater described above is as follows: For example, the user sets the power supply period to 6:00-8:00 and 18:00-21:00 using the operation buttons, and simultaneously presets the upper limit of the water temperature (e.g., 50℃) through the interactive module. During operation, from 6:00-8:00, the power control module 3 connects the heating element 2 to power it and starts heating; when the temperature detection module 8 detects that the water temperature has reached 50℃, the power control module 3 temporarily cuts off the power; if the water temperature drops to 45℃, the power supply is restored to maintain the water temperature; after the 8:00 period ends, the power supply to the heating element is completely cut off. The above process is repeated from 18:00-21:00, and the heating element is in a power-off state during the remaining periods. The LCD screen displays "Powering on / Water temperature XX℃" or "Power off standby" in real time.

Claims

1. An electric water heater with time-segmented power control, comprising an inner tank (1) and a heating element (2), wherein the heating element (2) is disposed inside the inner tank (1) for heating the liquid in the inner tank (1), characterized in that, The heating component (2) is connected to the live wire (5) and the neutral wire (9) respectively, and together with the external power supply, it forms a power supply circuit. The circuit is also equipped with a power control module (3), a timing module (4) and an interaction module (6). The power control module (3) is used to selectively energize the external power supply and the heating component (2) according to the power supply period set by the timing module (4).

2. The electric water heater with time-sharing power supply control according to claim 1, characterized in that, The timing module (4) is electrically connected to the interaction module (6) and is used to receive at least one power supply period set by the user through the interaction module (6). The interaction module (6) displays the set power supply period and heating status and allows the user to perform human-computer interaction.

3. The electric water heater with time-sharing power supply control according to claim 1, characterized in that, The interactive module (6) further includes an input unit and a display unit. The input unit is a button and / or a touch screen, and the display unit is an LCD display and / or an LED indicator.

4. An electric water heater with time-sharing power supply control according to claim 1, characterized in that, The heating component (2) includes at least one electric heating element with a power of at least 2000W.

5. An electric water heater with time-sharing power supply control according to claim 1, characterized in that, The inner liner (1) is covered with an insulation layer (7), which is used to slow down the heat loss rate of the liquid inside the inner liner (1).

6. An electric water heater with time-sharing power supply control according to claim 1, characterized in that, The power control module (3) is electrically connected to the temperature detection module (8), and the measuring end of the temperature detection module (8) is in contact with the liquid inside the inner liner (1) to measure the real-time temperature of the liquid and transmit the data to the power control module (3) so that the power control module (3) can adjust the heating state according to the power supply period.

7. An electric water heater with time-sharing power supply control according to claim 1, characterized in that, The external power supply is also connected to a ground wire (10) to prevent electric leakage from the outer casing of the electric water heater from causing a safety accident.

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