Solar water heater with voice broadcast function

By introducing temperature sensors, liquid level sensors, and motor-driven dust removal plates into solar water heaters, combined with focusing plates and photovoltaic power supply, the problems of water shortage, overflow, and vacuum tube damage in solar water heaters are solved, improving ease of use and photothermal conversion efficiency.

CN224353293UActive Publication Date: 2026-06-12HEFEI RONGSHIDA SOLAR ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI RONGSHIDA SOLAR ENERGY TECH CO LTD
Filing Date
2025-04-15
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing solar water heaters have problems such as running out of water and dry burning if water is not added, overflowing if water is not turned off, and cracking of vacuum tubes due to overfilling and freezing, which affect the user experience.

Method used

Temperature and liquid level sensors are linked with a microcontroller to broadcast water temperature and level information via voice on the user terminal. A motor drives a dust removal plate to clean dust from the heat collection tubes. A focusing plate is set up to improve the photothermal conversion efficiency, and photovoltaic panels are used for auxiliary power supply.

🎯Benefits of technology

It effectively prevents solar water heaters from running dry, overflowing, and being damaged by vacuum tubes, improves photothermal conversion efficiency, saves energy, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224353293U_ABST
    Figure CN224353293U_ABST
Patent Text Reader

Abstract

The utility model discloses a solar water heater can voice broadcast, including water heater body and user terminal, water heater body is fixed on the support, is equipped with control box on the support, is equipped with singlechip in control box, and singlechip is connected with the temperature sensor and liquid level sensor of being equipped in the water heater body inside through the wire, and temperature sensor is used for detecting water temperature, and liquid level sensor is used for detecting water amount, is equipped with speaker on user terminal, and user terminal is connected with singlechip through the wire, and singlechip will temperature sensor and liquid level sensor's data through speaker voice broadcast, the utility model discloses through user terminal broadcast voice prompt, further prevent appearing in the process of solar energy use because of forget to fill water and lead to solar water heater water shortage dry burning or open fill water and forget to close and lead to solar water heater overflow etc. Problem, let the user be more worry-free, convenient in the process of using solar water heater daily.
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Description

Technical Field

[0001] This utility model relates to the field of solar water heater technology, specifically to a solar water heater with voice broadcast capability. Background Technology

[0002] Solar water heaters are heating devices that convert solar energy into heat energy, heating water from a low temperature to a high temperature to meet people's needs for hot water in daily life and production. Solar water heaters are classified into evacuated tube solar water heaters and flat-plate solar water heaters according to their structure, with evacuated tube solar water heaters being the dominant type, accounting for 95% of the domestic market share. A evacuated tube household solar water heater consists of collector tubes, a storage tank, and supporting components. The conversion of solar energy into heat energy mainly relies on the evacuated collector tubes. These tubes utilize the principle that hot water rises and cold water sinks, creating a micro-circulation of the water to obtain the desired hot water.

[0003] A search revealed that Chinese patent CN217876490U discloses a smart home electric water heater, including a storage tank, buttons, an LED display, sensors, a microcontroller, and a speaker. The storage tank, mounted on the wall, is primarily used to store and heat water. The buttons are used by the user to control the shower temperature. The LED display shows the heating temperature of the water heater and the temperature controlled by the buttons. Sensors are installed at the water outlet valve and the display screen to detect the water flow and temperature. The microcontroller determines the water heater's operating time based on the button temperature and the water flow from the storage tank. The speaker receives signals from the microcontroller and provides voice prompts to the user indicating the usable time at that temperature.

[0004] While the above solution achieves the technical effect of receiving signals from the microcontroller and sensors through a speaker for voice broadcasting to some extent, it still has the following shortcomings:

[0005] The above solution only achieves the technical effect of providing voice prompts through a speaker to indicate the usable time at a given temperature. However, there are still technical issues to be resolved regarding solar water heaters during use, such as determining whether to add water based on the water level and whether to activate auxiliary heating based on the water temperature. In daily life, problems often arise such as forgetting to add water, leading to the solar water heater running dry, or forgetting to turn off the water supply after turning it on, causing the solar water heater to overflow. In winter, the vacuum tubes may burst due to excessive water level and freezing. These problems cause great inconvenience to users in the daily use of solar water heaters. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a solar water heater with voice broadcast capability.

[0007] The technical solution of this utility model is as follows:

[0008] A solar water heater with voice broadcast capability includes:

[0009] The water heater body is fixed on a bracket, and a control box is provided on the bracket. A microcontroller is provided in the control box. The microcontroller is connected to a temperature sensor and a liquid level sensor located inside the water heater body via wires. The temperature sensor is used to detect the water temperature, and the liquid level sensor is used to detect the water volume.

[0010] The user terminal is equipped with a speaker and is connected to the microcontroller via a wire. The microcontroller transmits data from the temperature sensor and the liquid level sensor to the user terminal and broadcasts the data via the speaker.

[0011] The temperature sensor and the liquid level sensor are linked, and a prompt voice is broadcast through the speaker when the temperature is too low and the liquid level is too high.

[0012] Furthermore, the water heater body includes a heat collection pipe and a water storage tank. The lower end of the heat collection pipe is connected to a heat collection pipe fixing seat, and the upper end is connected to the water storage tank. A first fixing plate and a second fixing plate are sleeved at both ends of the heat collection pipe. A dust removal plate is sleeved on the heat collection pipe. A smooth rod and a lead screw are provided between the first fixing plate and the second fixing plate. The smooth rod and the lead screw pass through the dust removal plate. A motor is fixed on the heat collection pipe fixing seat. The motor drives the lead screw to rotate, so that the dust removal plate moves along the heat collection pipe. A photovoltaic panel is provided on the motor. The photovoltaic panel converts solar energy into electrical energy to charge the lithium battery. The lithium battery provides auxiliary power to the motor, the microcontroller, and the user terminal.

[0013] Furthermore, guide plates are provided on both sides of the heat collection tube, and the guide plates are arranged parallel to the heat collection tube. One end of the guide plate is provided on the heat collection tube fixing seat, and the other end is fixed on the cylindrical surface of the water storage tank. The guide plate is provided with guide grooves, and both ends of the dust removal plate are provided in the guide grooves. The guide plates are used to restrict the degree of freedom of the dust removal plate. The dust removal plate includes a dust removal part and a limiting plate. The limiting plate is fixedly provided at both ends of the dust removal part and is provided on the outside of the guide groove.

[0014] Furthermore, the dust removal section has dust removal holes evenly distributed on it, and the dust removal holes are sleeved on the heat collection tube. The upper end of the dust removal section is provided with a light rod seat and a lead screw seat. The light rod seat is provided with a light rod hole, and the lead screw seat is provided with a threaded hole. The light rod is provided in the light rod hole, and the threaded hole is threadedly connected to the lead screw.

[0015] Furthermore, a focusing plate is provided in the space below the heat collection tube. The focusing plate is arc-shaped and is a concave mirror. The focusing plate is fixed on the bracket and is used to reflect sunlight that passes through the gaps in the heat collection tube to the back surface of the heat collection tube.

[0016] Furthermore, the user terminal is equipped with an LCD screen, a speaker, and buttons. The LCD screen, the speaker, and the buttons are connected to the microcontroller circuit, and the buttons control the switching of the water pump, the electromagnetic relay, and the motor.

[0017] Furthermore, the electromagnetic relay is connected to the auxiliary heating module. When the electromagnetic relay is energized, it generates electromagnetic force, which controls the auxiliary heating module to turn on by attracting the switch of the auxiliary heating module. When the electromagnetic relay is de-energized, the electromagnetic force disappears, the switch of the auxiliary heating module rebounds, and the auxiliary heating module is turned off. The heating resistor of the auxiliary heating module is located inside the water storage tank.

[0018] Furthermore, the photovoltaic panel is connected to a boost module on the microcontroller, and the boost module charges the lithium battery by increasing the output voltage of the photovoltaic panel.

[0019] The beneficial effects achieved by this utility model are as follows:

[0020] 1. This utility model uses temperature and liquid level sensors to process data through a microcontroller and broadcasts voice prompts through the user terminal. This further prevents problems such as the solar water heater running dry due to forgetting to add water, or overflowing due to forgetting to turn off the water supply after turning on the water supply. It also prevents problems such as the vacuum tubes bursting due to the water level in the solar water heater being too full or freezing in winter. This makes it more worry-free and convenient for users to use solar water heaters in daily life.

[0021] 2. This utility model has a dust removal mechanism that regularly scrapes away the dust on the surface of the heat collection tube, preventing dust accumulation from reducing the photothermal conversion efficiency of the heat collection tube.

[0022] 3. By setting a focusing plate, this utility model refracts and focuses the solar energy that passes through the gaps between the heat collection tubes onto the back surface of the heating tube, thereby further improving the photothermal conversion efficiency of the heat collection tubes.

[0023] 4. This utility model uses photovoltaic panels for auxiliary power supply, which further improves the utilization rate of solar energy and saves electricity. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0025] Figure 2This is a schematic diagram of the dust removal structure of the heat collection tube of this utility model.

[0026] Figure 3 This is a schematic diagram of the dust removal structure from another perspective of this utility model.

[0027] Figure 4 This is a schematic diagram of the structure of the dust removal plate of this utility model.

[0028] Figure 5 This is a schematic diagram of the focusing plate of this utility model.

[0029] Figure 6 This is the circuit diagram of the microcontroller system of this utility model.

[0030] Figure 7 This is the circuit diagram of the button for this utility model.

[0031] Figure 8 This is the circuit diagram of the LCD screen of this utility model.

[0032] Figure 9 This is a circuit diagram for the voice broadcast of this utility model.

[0033] Figure 10 This is the temperature detection circuit diagram of this utility model.

[0034] Figure 11 This is the circuit diagram for liquid level detection of this utility model.

[0035] Figure 12 This is the circuit diagram of the heating system of this utility model.

[0036] Figure 13 This is a circuit diagram of a photovoltaic charging system for this utility model.

[0037] Figure 14 This is the circuit diagram for the boost converter of this utility model.

[0038] Figure 15 This is a flowchart of the voice broadcasting system of this utility model.

[0039] In the diagram, 1. Water heater body; 101. Heat collector tube; 102. Water storage tank; 2. Control box; 3. Wire; 4. User terminal; 401. LCD screen; 402. Speaker; 403. Button; 5. Focusing plate; 6. Lead screw; 7. Smooth rod; 8. Dust removal plate; 801. Dust removal section; 802. Limiting plate; 803. Smooth rod seat; 804. Lead screw seat; 805. Smooth rod hole; 806. Threaded hole; 807. Dust removal hole; 9. Guide plate; 901. Guide groove; 10. Photovoltaic panel; 11. Motor; 12. First fixing plate; 13. Second fixing plate; 14. Bracket; 15. Heat collector tube fixing seat; 16. Temperature sensor; 17. Liquid level sensor; 18. Electromagnetic relay; 19. Auxiliary heating module; 20. Lithium battery; 21. Boost module; 22. Microcontroller. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] In the description of this utility model, it should be noted that the terms "upper end," "lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Please see Figures 1 to 15 This utility model provides a technical solution:

[0044] A solar water heater with voice broadcast capability includes:

[0045] A water heater body 1 is fixed on a bracket 14. A control box 2 is provided on the bracket 14. A microcontroller 22 is provided in the control box 2. The microcontroller 22 is connected to a temperature sensor 16 and a liquid level sensor 17 located inside the water heater body 1 via a wire 3. The temperature sensor 16 is used to detect the water temperature, and the liquid level sensor 17 is used to detect the water volume.

[0046] User terminal 4, which is equipped with a speaker 402, is connected to the microcontroller 22 via a wire 3. The microcontroller 22 transmits the data from the temperature sensor 16 and the liquid level sensor 17 to the user terminal 4 and broadcasts the data through the speaker 402.

[0047] The temperature sensor 16 and the liquid level sensor 17 are linked, and a prompt voice is broadcast through the speaker 402 when the temperature is too low and the liquid level is too high.

[0048] Specifically, such as Figure 1 As shown, the water heater body 1 includes a heat collection pipe 101 and a water storage tank 102. The lower end of the heat collection pipe 101 is connected to the heat collection pipe fixing seat 15, and the upper end is connected to the water storage tank 102. A first fixing plate 12 and a second fixing plate 13 are sleeved at both ends of the heat collection pipe 101. A dust removal plate 8 is sleeved on the heat collection pipe 101. A smooth rod 7 and a lead screw 6 are provided between the first fixing plate 12 and the second fixing plate 13. The smooth rod 7 and the lead screw 6 pass through the dust removal plate 8. A motor 11 is fixed on the heat collection pipe fixing seat 15. The motor 11 drives the lead screw 6 to rotate, so that the dust removal plate 8 moves along the heat collection pipe 101. A photovoltaic panel 10 is provided on the motor 11. The photovoltaic panel 10 converts solar energy into electrical energy to charge the lithium battery 20. The lithium battery 20 provides auxiliary power to the motor 11, the microcontroller 22, and the user terminal 4.

[0049] Specifically, the microcontroller 22 is preferably a 51 microcontroller 22.

[0050] Specifically, the motor 11 is preferably a servo motor 11.

[0051] Specifically, such as Figure 2 and Figure 3As shown, guide plates 9 are provided on both sides of the heat collection tube 101. The guide plates 9 are arranged parallel to the heat collection tube 101. One end of the guide plate 9 is provided on the heat collection tube fixing seat 15, and the other end is fixed on the cylindrical surface of the water storage tank 102. The guide plate 9 is provided with a guide groove 901. Both ends of the dust removal plate 8 are provided in the guide groove 901. The guide plate 9 is used to restrict the degree of freedom of the dust removal plate 8. The dust removal plate 8 includes a dust removal part 801 and a limiting plate 802. The limiting plate 802 is fixedly provided at both ends of the dust removal part 801 and is provided on the outside of the guide groove 901.

[0052] Specifically, such as Figure 4 As shown, dust removal holes 807 are evenly distributed on the dust removal part 801. The dust removal holes 807 are sleeved on the heat collection tube 101. The upper end of the dust removal part 801 is provided with a light rod seat 803 and a lead screw seat 804. The light rod seat 803 is provided with a light rod hole 805. The lead screw seat 804 is provided with a threaded hole 806. The light rod 7 is provided in the light rod hole 805. The lead screw 6 is threadedly connected to the light rod 6 in the threaded hole 806.

[0053] Specifically, such as Figure 5 As shown, a focusing plate 5 is provided in the space below the heat collection tube 101. The focusing plate 5 is arranged in an arc shape and is a concave mirror. The focusing plate 5 is fixed on the bracket 14. The focusing plate 5 is used to reflect the sunlight passing through the gap of the heat collection tube 101 to the back surface of the heat collection tube 101.

[0054] Specifically, such as Figures 6 to 9 As shown, the user terminal 4 is equipped with an LCD screen 401, a speaker 402 and a button 403. The LCD screen 401, the speaker 402 and the button 403 are connected to the microcontroller 22 circuit. The button 403 controls the switching of the water pump, the electromagnetic relay 18 and the motor 11.

[0055] Specifically, the number of buttons 403 is preferably three.

[0056] Specifically, such as Figure 10 and Figure 11 As shown, the temperature sensor 16 is connected to the P12 terminal of the microcontroller 22, and there are two liquid level sensors 17, which are respectively connected to the P10 terminal and the P11 terminal of the microcontroller 22. One of the liquid level sensors 17 is used to detect the highest water level, and the other is used to detect the lowest water level.

[0057] Specifically, such as Figure 12As shown, the electromagnetic relay 18 is connected to the auxiliary heating module 19. The electromagnetic relay 18 generates electromagnetic force when energized, and controls the auxiliary heating module 19 to turn on by attracting the switch of the auxiliary heating module 19. When the electromagnetic relay 18 is de-energized, the electromagnetic force disappears, the switch of the auxiliary heating module 19 rebounds, and controls the auxiliary heating module 19 to turn off. The heating resistor of the auxiliary heating module 19 is located inside the water storage tank 102.

[0058] Specifically, such as Figure 13 and Figure 14 As shown, the photovoltaic panel 10 is connected to the boost module 21 on the microcontroller 22. The boost module 21 charges the lithium battery 20 by increasing the output voltage of the photovoltaic panel 10.

[0059] In this embodiment, as Figure 15 As shown, when the temperature sensor 16 detects that the water temperature is below 30°C, the user terminal 4 announces in voice: "The current water temperature is too low, do you want to start auxiliary heating?" When the user terminal 4 selects "yes," the electromagnetic relay 18 closes, and the auxiliary heating module 19 immediately starts; when the temperature sensor 16 detects that the water temperature is above 60°C, the user terminal 4 announces in voice: "The current temperature is suitable for bathing."; when the liquid level sensor 17 detects that the water level is below 10%, the user terminal 4 announces in voice: "The current water level is too low, do you want to start auxiliary heating?" "Turn on the water pump." The user can operate the water pump on the user terminal 4. When the liquid level sensor 17 detects that the water level is higher than 90% and the water pump is on, the user terminal 4 will announce in voice: "Water level is too high, please turn off the water pump." When the temperature sensor 16 detects that the water temperature is lower than 5℃ and the liquid level sensor 17 detects that the water level is greater than or equal to 98%, the user terminal 4 will announce in voice: "There is a risk of the water heater freezing and cracking, please lower the water level." The voice prompt will be interrupted when the user releases some water and the water level is lower than the danger value.

[0060] In this embodiment, the user can control the motor 11 through the user terminal 4 to control the dust removal plate 8 to periodically clean the dust on the heat collection tube 101, so as to avoid the accumulation of dust affecting the photothermal conversion efficiency.

[0061] In this embodiment, the photothermal conversion efficiency is further improved by setting a focusing plate 5 in the space below the heat collection tube 101. The focusing plate 5 is a concave mirror, and the heat collection tube 101 is located near the focal point of the focusing plate 5. By refracting the sunlight passing through the gap of the heat collector to the back surface of the heat collection tube 101, the photothermal conversion efficiency is further improved.

[0062] The parts of this utility model not described are existing or known technologies.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0064] The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A solar water heater with voice broadcast capability, characterized in that: include: A water heater body (1) is fixed on a bracket (14). A control box (2) is provided on the bracket (14). A microcontroller (22) is provided in the control box (2). The microcontroller (22) is connected to a temperature sensor (16) and a liquid level sensor (17) located inside the water heater body (1) via a wire (3). The temperature sensor (16) is used to detect the water temperature, and the liquid level sensor (17) is used to detect the water volume. User terminal (4), the user terminal (4) is equipped with a speaker (402), the user terminal (4) is connected to the microcontroller (22) via a wire (3), the microcontroller (22) transmits the data of the temperature sensor (16) and the liquid level sensor (17) to the user terminal (4), and broadcasts the data through the speaker (402); The temperature sensor (16) and the liquid level sensor (17) are linked, and a prompt voice is broadcast through the speaker (402) when the temperature is too low and the liquid level is too high. The water heater body (1) includes a heat collection tube (101) and a water storage tank (102). The lower end of the heat collection tube (101) is connected to the heat collection tube fixing seat (15), and the upper end is connected to the water storage tank (102). A first fixing plate (12) and a second fixing plate (13) are sleeved at both ends of the heat collection tube (101). A dust removal plate (8) is sleeved on the heat collection tube (101). A smooth rod (7) and a lead rod (6) are provided between the first fixing plate (12) and the second fixing plate (13). The smooth rod (7) and the lead rod (6) are connected to the water storage tank (102). The rod (6) passes through the dust removal plate (8), and a motor (11) is fixed on the heat collection tube fixing seat (15). The motor (11) drives the lead screw (6) to rotate so that the dust removal plate (8) moves along the heat collection tube (101). A photovoltaic panel (10) is provided on the motor (11). The photovoltaic panel (10) converts solar energy into electrical energy to charge the lithium battery (20). The lithium battery (20) provides auxiliary power to the motor (11), the microcontroller (22), and the user terminal (4). The heat collection tube (101) is provided with guide plates (9) on both sides. The guide plates (9) are arranged parallel to the heat collection tube (101). One end of the guide plate (9) is provided on the heat collection tube fixing seat (15), and the other end is fixed on the cylindrical surface of the water storage tank (102). The guide plate (9) is provided with a guide groove (901). The two ends of the dust removal plate (8) are provided in the guide groove (901). The guide plate (9) is used to restrict the degree of freedom of the dust removal plate (8). The dust removal plate (8) includes a dust removal part (801) and a limiting plate (802). The limiting plate (802) is fixed at both ends of the dust removal part (801) and is located on the outside of the guide groove (901). The dust removal section (801) has dust removal holes (807) evenly distributed on it. The dust removal holes (807) are sleeved on the heat collection tube (101). The upper end of the dust removal section (801) is provided with a smooth rod seat (803) and a lead screw seat (804). The smooth rod seat (803) is provided with a smooth rod hole (805). The lead screw seat (804) is provided with a threaded hole (806). The smooth rod (7) is provided in the smooth rod hole (805). The threaded hole (806) is threadedly connected to the lead screw (6). A focusing plate (5) is provided in the space below the heat collection tube (101). The focusing plate (5) is arranged in an arc shape and is a concave mirror. The focusing plate (5) is fixed on the bracket (14). The focusing plate (5) is used to reflect the sunlight passing through the gap of the heat collection tube (101) to the back surface of the heat collection tube (101). The electromagnetic relay (18) is connected to the auxiliary heating module (19). When the electromagnetic relay (18) is energized, it generates electromagnetic force. By attracting the switch of the auxiliary heating module (19), the auxiliary heating module (19) is turned on. When the electromagnetic relay (18) is de-energized, the electromagnetic force disappears, the switch of the auxiliary heating module (19) rebounds, and the auxiliary heating module (19) is turned off. The heating resistor of the auxiliary heating module (19) is located inside the water storage tank (102). The photovoltaic panel (10) is connected to the boost module (21) on the microcontroller (22), and the boost module (21) charges the lithium battery (20) by increasing the output voltage of the photovoltaic panel (10).

2. A solar water heater with voice broadcast capability according to claim 1, characterized in that: The user terminal (4) is equipped with an LCD screen (401), a speaker (402) and a button (403). The LCD screen (401), the speaker (402) and the button (403) are connected to the microcontroller (22) circuit. The button (403) controls the switching of the water pump, the electromagnetic relay (18) and the motor (11).