Water temperature digital display device for bathroom shower head

Abstract

The utility model relates to the technical field of bathroom products, in particular to a water temperature digital display device for a bathroom shower head, which comprises a hydroelectric generation component arranged on the shower head, a battery, a temperature sensor, a microcontroller and a digital display component, according to the hydroelectric generation assembly, a pressurizing plate is arranged in a water inlet pipe of a shower head, a rotating coil is rotatably arranged in the water inlet pipe through a rotating shaft, the pressurizing plate is provided with a plurality of jet flow holes, the jet flow holes convert kinetic energy of water flow into pressure energy to pressurize water, and the flow speed of the water flow is increased after the water flow penetrates through the jet flow holes; therefore, the rotating coil rapidly rotates to generate electricity under the impact effect of water flow, the generating voltage of the hydroelectric generation assembly is kept stable, even if the water pressure is small and unstable, the digital display component can normally display the water temperature, and the problems that an existing digital display bathroom shower head on the market is unstable in water pressure and inconvenient to use are solved. And the digital display screen does not display the water temperature or splash screen at low brightness.

Description

Technical Field

[0001] This utility model relates to the field of bathroom product technology, specifically to a digital display device for water temperature in bathroom shower heads. Background Technology

[0002] Current digital display showerheads are equipped with miniature hydroelectric generators and temperature displays. When users shower with water, the temperature display shows the current water temperature to prevent scalding or catching a cold. The miniature hydroelectric generator inside the showerhead powers the display. The generator generates electricity under the impact of water flow, providing the voltage needed for the display. However, current digital display showerheads on the market generate and display power in real-time, which is limited by water pressure. In situations like self-built houses or residential areas where water pressure is often unstable, the miniature hydroelectric generator's efficiency is low, the voltage is unstable, and the power output is unstable. This can result in the temperature display showing low brightness or flickering, making it difficult for users to clearly understand the current water temperature and causing inconvenience. Utility Model Content

[0003] The purpose of this invention is to provide a digital display device for water temperature in bathroom shower heads, in order to solve the problem of unstable water pressure in existing digital display bathroom shower heads on the market, which leads to low brightness of the digital display screen, failure to display water temperature, or screen flickering.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a water temperature digital display device for a bathroom shower head, comprising a hydroelectric power generation component, a battery, a temperature sensor, a microcontroller, and a digital display component disposed in the shower head; the battery is electrically connected to the hydroelectric power generation component, the temperature sensor, the microcontroller, and the digital display component; the microcontroller is communicatively connected to the temperature sensor and the digital display component; the temperature sensor is used to detect the water temperature; the digital display component is used to display the water temperature value; the hydroelectric power generation component includes a pressure plate fixed in the shower head inlet pipe, a rotating shaft rotatably connected at one end to the pressure plate, a rotating coil connected to the other end of the rotating shaft, and a magnetic ring surrounding the rotating coil; the pressure plate is provided with multiple conical jet holes.

[0005] Based on the above technical solution, the present invention can be further improved as follows:

[0006] As a further improvement to the above technical solution, the pressure plate is circular, and the outer edge of the pressure plate is fixed to the inner wall of the shower head inlet pipe. A bearing is embedded in the center of the pressure plate, and the bearing is sleeved on one end of the rotating shaft. The rotating coil and the magnetic ring are placed in the shower head inlet pipe, and the magnetic ring is attached to the inner wall of the shower head inlet pipe. The multiple jet holes surround the rotating shaft and face the rotating coil. The shower head inlet pipe has an inlet end and an outlet end, and the outlet end is connected to the shower head.

[0007] As a further improvement to the above technical solution, the battery and the digital display component are electrically connected by wires. The battery is a rechargeable lithium polymer battery with a capacity of 2000mAh. The battery is placed inside the battery compartment, and the battery compartment and the digital display component are located outside the shower head inlet pipe.

[0008] As a further improvement to the above technical solution, the battery is a rechargeable lithium battery, and the digital display component is a touch screen or an LED digital tube. The touch screen is a resistive touch screen, a capacitive touch screen, or a piezoelectric touch screen.

[0009] As a further improvement to the above technical solution, the temperature sensor is located inside the shower head, and the temperature sensor can be an NTC temperature sensor.

[0010] As a further improvement to the above technical solution, the microcontroller is connected to the temperature sensor via a signal line, the digital display component is connected to the microcontroller via a wire, the microcontroller is housed in the mounting housing, and the microcontroller is a single-chip microcomputer.

[0011] As a further improvement to the above technical solution, a digital display driver chip is connected to the microcontroller via a wire.

[0012] As a further improvement to the above technical solution, the cross-section of the outer peripheral surface of the shower head water inlet pipe is D-shaped, thereby forming a first mounting surface, a second mounting surface, a third mounting surface and an arc surface on the outer peripheral surface of the shower head water inlet pipe. The first mounting surface, the second mounting surface and the third mounting surface are all planar. The digital display component is disposed on the first mounting surface, the mounting housing is disposed on the second mounting surface, and the battery compartment is disposed on the third mounting surface.

[0013] The beneficial effects of this utility model are as follows: The water temperature digital display device for bathroom showerheads of this utility model is provided with a pressure boosting plate and a rotating coil rotatably installed in the water inlet pipe of the showerhead via a rotating shaft. The pressure boosting plate has multiple jet holes, which convert the kinetic energy of the water flow into pressure energy to increase the water pressure. After the water flows through the jet holes, the flow velocity is increased, which causes the rotating coil to rotate rapidly under the impact of the water flow to generate electricity. This keeps the power generation voltage of the hydroelectric power generation component stable. Even if the water pressure is low or unstable, the water heater can still be used normally, and the digital display component can still display the water temperature normally. This solves the problem of unstable water pressure in existing digital display bathroom showerheads on the market, which leads to low brightness of the digital display screen and failure to display the water temperature or screen flickering. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the water temperature digital display device for bathroom shower provided in a preferred embodiment of the present invention;

[0016] Figure 2 yes Figure 1 Enlarged view of section A;

[0017] Figure 3 yes Figure 2 Cross-sectional views of the booster plate, bearings, and shaft in the circuit;

[0018] Figure 4 yes Figure 1 A block diagram illustrating the working principle of a digital water temperature display device for bathroom showerheads;

[0019] In the diagram: 1. Shower head; 11. Inlet pipe; 111. First mounting surface; 112. Second mounting surface; 113. Third mounting surface; 12. Shower head; 2. Hydroelectric power generation component; 21. Pressure plate; 211. Jet hole; 22. Rotating shaft; 23. Rotating coil; 24. Magnetic ring; 25. Bearing; 3. Battery; 31. Battery compartment; 4. Temperature sensor; 5. Microcontroller; 51. Mounting housing; 6. Digital display component; 7. Digital display driver chip; 8. Bridge rectifier circuit. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0023] like Figures 1 to 4 As shown, a preferred embodiment of this utility model provides a water temperature digital display device for a bathroom shower head, including a hydroelectric power generation component 2, a battery 3, a temperature sensor 4, a microcontroller 5, and a digital display component 6 disposed on the shower head 1. The shower head 1 includes a water inlet pipe 11 and a shower head 12 connected to the water inlet pipe 11. The battery 3 is electrically connected to the hydroelectric power generation component 2, the temperature sensor 4, the microcontroller 5, and the digital display component 6. The microcontroller 5 is communicatively connected to the temperature sensor 4 and the digital display component 6. The temperature sensor 4 is used to detect the water temperature, and the digital display component 6 is used to display the water temperature value. The hydroelectric power generation component 2 includes a pressure plate 21 fixed in the water inlet pipe 11, a rotating shaft 22 rotatably connected to the pressure plate 21 at one end, a rotating coil 23 connected to the other end of the rotating shaft 22, and a magnetic ring 24 surrounding the rotating coil 23. The pressure plate 21 is provided with a plurality of jet holes 211.

[0024] The inlet pipe 11 has an inlet end and an outlet end, with the outlet end connected to the shower head 12. The hydroelectric power generation component 2 generates electricity using the principle of hydroelectric power generation. The hydroelectric power generation component 2 is electrically connected to the battery 3 via wires to transmit electrical energy to the battery 3. The pressure plate 21 is circular, with its outer edge fixed to the inner wall of the inlet pipe 11. A bearing 25 is embedded in the center of the pressure plate 21, and the bearing 25 is fitted onto one end of the rotating shaft 22. A rotating coil 23 and a magnetic ring 24 are placed in the inlet pipe 11, with the magnetic ring 24 attached to the inner wall of the inlet pipe 11. Multiple jet holes 211 surround the rotating shaft 22 and face the rotating coil 23. A water pressure sensor can be installed on the outlet side of the pressure plate 21 near the rotating coil 23 to detect the water pressure after the water flows through the jet holes 211. In this embodiment, the pressure plate 21 has 6 jet holes 211. The channels of the jet holes 211 are set in a conical shape so that the water flow velocity increases to 1.8 times the initial flow velocity after passing through the jet holes 211.

[0025] Preferably, the battery 3 is electrically connected to the digital display component 6 via a wire to supply power to the digital display component 6. The battery 3 is a rechargeable battery and is placed inside the battery compartment 31. The battery compartment 31 and the digital display component 6 are located outside the water inlet pipe 11. The battery 3 can be a rechargeable lithium polymer battery with a capacity of 2000mAh; the digital display component 6 can be a touch screen or an LED digital tube. The touch screen can be a resistive touch screen, a capacitive touch screen, or a piezoelectric touch screen.

[0026] Preferably, in this embodiment, the temperature sensor 4 is located inside the shower head 12 to detect the shower water temperature and send the detected water temperature signal to the microcontroller 5. The temperature sensor 4 can be an NTC temperature sensor. Preferably, the microcontroller 5 is connected to the temperature sensor 4 via a signal line, and the digital display component 6 is connected to the microcontroller 5 via a wire. The microcontroller 5 is housed inside the mounting housing 51. The digital display component 6, the mounting housing 51, and the battery compartment 31 are all waterproofed to prevent water ingress, and silicone sealing rings are used at the seams to achieve the IP67 waterproof standard. The microcontroller 5 receives the water temperature signal transmitted by the temperature sensor 4 and controls the digital display component 6 to display the corresponding water temperature value. In this way, the water temperature is displayed on the digital display component 6 in real time, allowing the user to see the water temperature value and preventing scalding by touching the water with their body. The microcontroller 5 uses an STM32F030 series microcontroller with a built-in ADC sampling frequency of 1kHz. The battery 3 powers the microcontroller 5 and the digital display component 6.

[0027] Preferably, the magnetic ring 24 uses neodymium iron boron permanent magnets to form a 16-pole ring magnetic field with a magnetic induction intensity ≥0.2T; the rotating coil 23 uses copper wire winding with 300±5 turns, and the gap between the rotating coil 23 and the magnetic ring 24 is maintained at 0.5mm. Preferably, a bridge rectifier circuit 8 is connected between the hydroelectric power generation component 2 and the battery 3 to generate 7.8V AC power through electromagnetic induction, which is then converted into 5V DC power by the bridge rectifier circuit 8 to charge the battery 3. Preferably, a digital display component 6 and the microcontroller 5 are connected by a digital display driver chip 7 through wires, which is used to drive the digital display component 6 to display the corresponding water temperature value. More preferably, the hydroelectric power generation component 2 can be electrically connected to the digital display driver chip 7 through the bridge rectifier circuit 8 so as to supply power to the digital display component 6 through the hydroelectric power generation component 2.

[0028] Preferably, in this embodiment, the cross-section of the outer peripheral surface of the water inlet pipe 11 is D-shaped, thereby forming a first mounting surface 111, a second mounting surface 112, a third mounting surface 113 and an arc surface on the outer peripheral surface of the water inlet pipe 11. The first mounting surface 111, the second mounting surface 112 and the third mounting surface 113 are all planar. The digital display component 6 is disposed on the first mounting surface 111, the mounting housing 51 is disposed on the second mounting surface 112, and the battery compartment 31 is disposed on the third mounting surface 113.

[0029] In use, the inlet pipe 11 of the bathroom shower head is connected to the water heater via a water pipe. Water enters from the inlet end of the inlet pipe 11 and flows along the water channel inside the inlet pipe 11 to the shower head 12. When the water passes through multiple jet holes 211, the jet holes 211 convert the kinetic energy of the water flow into pressure energy to increase the water pressure. After passing through the jet holes 211, the water flow velocity increases, and the high-speed water flow impacts the rotating coil 23. The rotating coil 23 rotates at high speed in the magnetic ring 24, cutting the magnetic field lines. A bridge rectifier circuit 8 is connected between the hydroelectric power generation component 2 and the battery 3. Alternating current is generated through electromagnetic induction, and then converted into direct current by the bridge rectifier circuit 8 to charge the battery 3. When the water pressure sensor detects that the water pressure after the water flow passes through the jet holes 211 reaches a preset value, the microcontroller 5 controls the hydroelectric power generation component 2 to directly power the digital display component 6. When the water flow is interrupted, the battery 3 automatically switches to power the digital display component 6, with a switching delay of <50ms. When the microcontroller 5 detects a 2-degree difference in water temperature, it automatically lights up the digital display 6 to show the current water temperature. After the user adjusts the temperature for 1 minute, the microcontroller 5 controls the digital display 6 to automatically turn off the screen to save energy. When the temperature is constant, the customer can also touch the digital display 6 to show the temperature during use. After 1 minute, the microcontroller 5 controls the digital display 6 to automatically turn off the screen.

[0030] This utility model discloses a digital water temperature display device for bathroom showerheads. It includes a pressure boosting plate 21 and a rotating coil 23 rotatably mounted in the inlet pipe 11 of the showerhead 1 via a rotating shaft 22. The pressure boosting plate 21 has multiple jet holes 211, which convert the kinetic energy of the water flow into pressure energy to boost the water pressure. After the water flows through the jet holes 211, the flow rate is increased, which causes the rotating coil 23 to rotate rapidly under the impact of the water flow to generate electricity. This keeps the power generation voltage of the hydroelectric power generation component 2 stable. Even if the water pressure is low or unstable, the water heater can still be used normally, and the digital display component 6 can still display the water temperature normally. This solves the problem of unstable water pressure in existing digital display bathroom showerheads on the market, which leads to low brightness of the digital display screen and failure to display the water temperature or screen flickering.

[0031] Any descriptions not covered in the above specific embodiments of this utility model belong to the well-known technology in the field, and can be implemented by referring to the well-known technology.

[0032] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A digital display device for water temperature in bathroom shower heads, characterized in that: The device includes a hydroelectric power generation component, a battery, a temperature sensor, a microcontroller, and a digital display component installed in the shower head. The battery is electrically connected to the hydroelectric power generation component, the temperature sensor, the microcontroller, and the digital display component. The microcontroller is communicatively connected to the temperature sensor and the digital display component. The temperature sensor is used to detect the water temperature, and the digital display component is used to display the water temperature value. The hydroelectric power generation component includes a pressure plate fixed in the shower head inlet pipe, a rotating shaft rotatably connected to the pressure plate at one end, a rotating coil connected to the other end of the rotating shaft, and a magnetic ring surrounding the rotating coil. The pressure plate has multiple conical jet holes.

2. The digital display device for water temperature in a bathroom shower head according to claim 1, characterized in that: The pressure plate is circular, and its outer edge is fixed to the inner wall of the shower head inlet pipe. A bearing is embedded in the center of the pressure plate, and the bearing is sleeved on one end of the rotating shaft. The rotating coil and magnetic ring are placed in the shower head inlet pipe, and the magnetic ring is attached to the inner wall of the shower head inlet pipe. The multiple jet holes surround the rotating shaft and face the rotating coil. The shower head inlet pipe has an inlet end and an outlet end, and the outlet end is connected to the shower head.

3. The digital display device for water temperature in a bathroom shower head according to claim 2, characterized in that: The battery and the digital display component are electrically connected by wires. The battery is a rechargeable battery and is placed inside the battery compartment. The battery compartment and the digital display component are located outside the shower head inlet pipe.

4. The digital display device for water temperature in a bathroom shower head according to claim 3, characterized in that: The battery is a rechargeable lithium polymer battery with a capacity of 2000mAh. The digital display component is a touch screen or an LED digital tube. The touch screen is a resistive touch screen, a capacitive touch screen, or a piezoelectric touch screen.

5. The digital display device for water temperature in a bathroom shower head according to claim 4, characterized in that: The temperature sensor is located inside the shower head, and the temperature sensor can be an NTC temperature sensor.

6. The digital display device for water temperature in a bathroom shower head according to claim 5, characterized in that: The microcontroller is connected to the temperature sensor via a signal line, and the digital display component is connected to the microcontroller via a wire. The microcontroller is housed inside the mounting housing and is a single-chip microcomputer.

7. The digital display device for water temperature in a bathroom shower head according to claim 6, characterized in that: The digital display component is connected to the microcontroller via a digital display driver chip through a wire.

8. The digital display device for water temperature in a bathroom shower head according to claim 7, characterized in that: The cross-section of the outer periphery of the shower head water inlet pipe is D-shaped, thus forming a first mounting surface, a second mounting surface, a third mounting surface, and an arc surface on the outer periphery of the shower head water inlet pipe. The first mounting surface, the second mounting surface, and the third mounting surface are all planar. The digital display component is disposed on the first mounting surface, the mounting housing is disposed on the second mounting surface, and the battery compartment is disposed on the third mounting surface.

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