Self-generating digital display faucet

Abstract

A self-generating digital display faucet comprises a faucet body and a digital display unit. A water mixing valve element is arranged in the faucet body to mix hot water and cold water and output mixed water. The digital display unit is mounted on the faucet body to display temperature information of the mixed water in real time; the temperature difference power generation unit is installed in the faucet body and provided with a first water cavity, a second water cavity and a temperature difference power generation element, the first water cavity is communicated with a hot water inlet of the water mixing valve element, and the second water cavity is communicated with a cold water inlet of the water mixing valve element. The thermoelectric power generation element is arranged between the first water cavity and the second water cavity to generate power under the effect of temperature difference and supply power to the digital display unit. The thermoelectric power generation unit is adopted for power generation and integrated in the faucet, an additional control box is not needed, and installation is convenient.

Description

Technical Field

[0001] The utility model relates to the field of sanitary ware, in particular to a self-generating digital display faucet. Background Art

[0002] Faucets are an inseparable part of daily life. In addition to the water-discharging function, existing faucets also have a digital display module that can display the water temperature in real time. Most of these digital display faucets are powered by city electricity, hydroelectric power or batteries.

[0003] However, when using AC power supply, it is necessary to connect to the AC power supply through a power cord, which increases the complexity of wiring; when using hydropower generation and battery power supply, an additional external control box needs to be set up to facilitate the placement of the hydropower generator or battery replacement, which is inconvenient to install. Utility Model Content

[0004] The main purpose of the utility model is to overcome the defects of the existing power supply method of digital display faucets, and to propose a self-generating digital display faucet, which adopts temperature difference power generation and the power generation module is integrated in the faucet. There is no need to set up an additional control box, and the installation is convenient.

[0005] The utility model adopts the following technical solutions:

[0006] A self-generating digital faucet comprises a faucet body and a digital display unit; a water mixing valve core is arranged in the faucet body to mix hot water and cold water and output the mixed water; the digital display unit is installed on the faucet body to display the temperature information of the mixed water in real time; and also comprises a temperature difference power generation unit, which is installed in the faucet body and is provided with a first water chamber, a second water chamber and a temperature difference power generation element, the first water chamber is connected to the hot water inlet of the water mixing valve core, the second water chamber is connected to the cold water inlet of the water mixing valve core, and the temperature difference power generation element is arranged between the first water chamber and the second water chamber to generate electricity under the action of temperature difference and supply power to the digital display unit.

[0007] Furthermore, the temperature difference power generation unit also includes a first shell, a second shell and a temperature conduction component. The first shell is provided with a first water chamber and is connected to the hot water inlet of the mixing valve core, and the second shell is provided with a second water chamber and is connected to the cold water inlet of the mixing valve core; the temperature conduction component is arranged between the first shell and the temperature difference power generation element and between the second shell and the temperature difference power generation element to transfer temperature.

[0008] Furthermore, a first plane is provided on the side of the first body opposite to the second body; a second plane is provided on the side of the second body opposite to the second body; the thermal conductivity component includes a first thermal conductivity plate and a second thermal conductivity plate, the first thermal conductivity plate is attached to the first plane, the second thermal conductivity plate is attached to the second plane, and the temperature difference power generation element is arranged between the first thermal conductivity plate and the second thermal conductivity plate.

[0009] Furthermore, the first sleeve is also provided with a water inlet, a water outlet and a plurality of water retaining strips. The water inlet is connected with the first water chamber to receive hot water, and the water outlet is connected with the first water chamber and connected with the hot water inlet of the mixing valve core; the plurality of water retaining strips are located in the first water chamber and are distributed at intervals to divide the first water chamber into a wavy waterway.

[0010] Furthermore, the second sleeve is also provided with a water inlet, a water outlet and a plurality of water retaining strips. The water inlet is connected to the second water chamber to receive cold water, and the water outlet is connected to the second water chamber and connected to the cold water inlet of the mixing valve core; the plurality of water retaining strips are located in the second water chamber and are distributed at intervals to divide the second water chamber into a wavy waterway.

[0011] Furthermore, it includes a plurality of first water retaining bars distributed at intervals and a plurality of second water retaining bars distributed at intervals; the plurality of first water retaining bars and the plurality of second water retaining bars are staggered, one side of the first water retaining bar is connected to one side of the first water cavity or the second water cavity in the radial direction, and the other side of the first water retaining bar is spaced from the other side of the first water cavity in the radial direction, one side of the second water retaining bar is spaced from one side of the first water cavity or the second water cavity in the radial direction, and the other side of the second water retaining bar is connected to the other side of the first water cavity in the radial direction.

[0012] Furthermore, the faucet body includes a valve body and a handle, the valve body is provided with a first cavity, a second cavity and a water outlet cavity, the temperature difference power generation unit is installed in the first cavity, the mixing valve core is installed in the second cavity, the water outlet cavity is connected to the mixing outlet of the mixing valve core; the handle is connected to the control end of the mixing valve core.

[0013] Furthermore, the digital display unit includes a temperature sensor, a display unit and a control unit. The temperature sensor detects the temperature information of the mixed water output by the mixing valve core; the control unit is connected to the temperature sensor, the temperature difference power generation element and the display unit to display the temperature information of the mixed water in real time.

[0014] Furthermore, it also includes an energy storage unit, which is connected to the temperature difference power generation unit and the control unit to power the digital display unit with the stored energy.

[0015] Furthermore, it also includes a voltage detection unit, which is connected to the energy storage unit to detect the voltage of the energy storage unit. The control unit is also connected to the voltage detection unit to turn on or off the charging of the energy storage unit by the thermoelectric power generation element according to the voltage control.

[0016] It can be seen from the above description of the utility model that compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The faucet of the utility model is provided with a temperature difference power generation unit in the faucet body, which uses the temperature difference between the hot water and the cold water entering the faucet body to generate electricity and supply power to the digital display unit. It has no moving mechanism, avoids generating additional noise, has strong reliability, strong sustainability and long service life.

[0018] 2. The faucet of the utility model, the temperature difference power generation unit includes a first sleeve, a second sleeve and a temperature conduction component, the first sleeve is provided with a first water cavity for receiving hot water, the second sleeve is provided with a second water cavity for receiving cold water, and the first sleeve and the second sleeve are respectively provided with a first plane and a second plane on opposite sides thereof, and the temperature conduction component is correspondingly provided with a first temperature conduction plate and a second temperature conduction plate, so as to increase the contact area to fully transfer heat and ensure that the temperature difference power generation unit can generate electricity smoothly.

[0019] 3. The faucet of the utility model is further provided with a plurality of spaced-apart water retaining strips in the first housing and the second housing, which are divided into a plurality of first water retaining strips and a plurality of second water retaining strips. The plurality of first water retaining strips and the plurality of second water retaining strips are staggeredly distributed, thereby dividing the first water cavity or the second water cavity into a wavy water channel, increasing the flow path of the water flow to ensure that the heat is evenly transferred to the surface of the housing.

[0020] 4. The faucet of the utility model may also be provided with an energy storage unit, which is used to store the electric energy generated by the thermoelectric power generation unit and serve as a backup power supply when the thermoelectric power generation unit cannot supply power. A voltage detection module may also be provided to detect the voltage of the energy storage unit, and the control unit controls to turn on or off the charging of the energy storage unit by the thermoelectric power generation element according to the detected voltage.

[0021] 5. The faucet of the utility model designs the temperature difference power generation unit into an independent module and places it in the valve body, so that the faucet is simple as a whole and easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the front view of the faucet of the utility model;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 for Figure 1 Exploded diagram of

[0025] Figure 4 It is a three-dimensional diagram of a temperature difference power generation unit;

[0026] Figure 5 It is the structure diagram of the temperature difference power generation unit;

[0027] Figure 6 A cross-sectional view of the first body or the second body;

[0028] Figure 7This is the working principle diagram of the utility model;

[0029] Figure 8 It is a cross-sectional view of the faucet of the utility model;

[0030] Fig. 9 This is a circuit module diagram of the utility model;

[0031] in:

[0032] 10. Faucet body; 11. Valve body; 12. First cavity; 13. Second cavity; 14. Water outlet cavity; 15. Handle; 16. Hot water inlet pipe; 17. Cold water inlet pipe; 18. Water outlet; 20. Temperature difference power generation unit; 20a. Water inlet; 20b. Water outlet 21. First sleeve; 21a. First plane; 22. Second sleeve; 22a. Second plane; 23. Temperature conduction component; 24. First water cavity; 25. Second water cavity; 26. Temperature difference power generation element; 27. First temperature conduction plate; 28. Second temperature conduction plate; 29. ​​Water retaining bar; 29a. First water retaining bar; 29b. Second water retaining bar; 30. Digital display unit; 31. Temperature sensor; 32. Display unit; 33. Control unit; 34. Energy storage unit; 35. Voltage detection unit; 40. Mixing valve core. DETAILED DESCRIPTION

[0033] The present invention is further described below through specific implementation methods.

[0034] See also Figures 1 to 9 A self-generating digital display faucet includes a faucet body 10, a temperature difference power generation unit 20 and a digital display unit 30. A water mixing valve core 40 is arranged in the faucet body 10, and the water mixing valve core 40 is used to mix hot water and cold water and output the mixed water. The water mixing valve core 40 can also be used to open or close the mixed water output and adjust the water temperature of the mixed water output. The digital display unit 30 is installed on the faucet body 10, and is used to display the temperature information of the mixed water in real time. The temperature difference power generation unit 20 is installed in the faucet body 10, which is used for temperature difference power generation to power the digital display unit 30. The temperature difference power generation unit 20 is provided with a first water chamber 24, a second water chamber 25 and a temperature difference power generation element 26. The first water chamber 24 is connected to the hot water inlet of the water mixing valve core 40, and the second water chamber 25 is connected to the cold water inlet of the water mixing valve core 40. The temperature difference power generation element 26 is arranged between the first water chamber 24 and the second water chamber 25. The temperature difference power generation element 26 generates electricity under the temperature difference on both sides and powers the digital display unit 30.

[0035] Among them, heat is directly or indirectly conducted between one side of the thermoelectric power generation element 26 and the first water chamber 24, and heat is directly or indirectly conducted between the other side of the thermoelectric power generation element 26 and the second water chamber 25. Direct heat conduction means that the thermoelectric power generation element directly contacts the side wall of the first water chamber 24 or the second water chamber 25 to achieve heat conduction, and indirect heat conduction means that a heat-conducting structure is also provided between the thermoelectric power generation element and the first water chamber or the second water chamber to conduct heat. The thermoelectric power generation element 26 uses a thermocouple sheet, and the two sides of the thermocouple sheet are made of two different metal materials. When the temperatures on both sides are different, the ions of the metal material will diffuse inside the material due to thermal activation, resulting in a thermal electron diffusion effect, thereby forming an electric potential difference, and then outputting current to achieve power generation.

[0036] In the figure, taking indirect heat conduction as an example, the thermoelectric power generation unit 20 also includes a first casing 21, a second casing 22 and a temperature conduction component 23. The first casing 21 is provided with a first water cavity 24, a water inlet 20a and a water outlet 20b. The water inlet 20a and the water outlet 20b are respectively connected to the first water cavity 24. The water inlet 20a is connected to hot water, and the water outlet 20b is connected to the hot water inlet of the water mixing valve core 40. The second casing 22 is provided with a second water cavity 25, a water inlet 20a and a water outlet 20b. The water inlet 20a is connected to cold water, and the water outlet 20b is connected to the cold water inlet of the water mixing valve core 40. The temperature conduction component 23 is arranged between the first casing 21 and the thermoelectric power generation element 26 and between the second casing 22 and the thermoelectric power generation element 26 to transfer temperature and better realize heat conduction between the casing and the thermoelectric power generation element 26. The hot water in the embodiments of this specification refers to hot water heated by a water heater or a small kitchen appliance, and the cold water refers to water at normal temperature or room temperature. In practical applications, in order to increase the contact area between the sleeve and the thermal conductive component 23, the side opposite to the first sleeve 21 and the second sleeve 22 is set as a first plane 21a, and the side opposite to the second sleeve 22 is set as a second plane 22a. The thermal conductive component 23 includes a first thermal conductive plate 27 and a second thermal conductive plate 28. The first thermal conductive plate 27 is attached to the first plane 21a, and the first thermal conductive plate 27 contacts the first plane 21a. The second thermal conductive plate 28 is attached to the second plane 22a, and the second thermal conductive plate 28 contacts the second plane 22a. The thermoelectric element 26 is disposed between the first thermal conductive plate 27 and the second thermal conductive plate 28, that is, both sides of the thermoelectric element 26 are directly in contact with the first thermal conductive plate 27 and the second thermal conductive plate 28, respectively. The heat in the first water chamber 24 is transferred to the first thermal conductive plate 27 through the first plane 21a, and then transferred to one side of the thermoelectric element 26 through the first thermal conductive plate 27. The second housing 22 filled with cold water, the second plane 22a, the second thermal conductive plate 28 and the thermoelectric element 26 are in contact in sequence to achieve heat conduction.

[0037] The first casing 21 is also provided with a plurality of water retaining strips 29, which are located in the first water cavity 24 and are distributed at intervals to divide the first water cavity 24 into a wavy waterway. The wavy waterway can increase the flow path length of the water flow in the first casing 21, which is conducive to the heat transfer to the surface of the first casing 21, and then to the first heat conduction plate 27 through the first plane 21a. Correspondingly, the second casing 22 is also provided with a plurality of water retaining strips 29, which are located in the second water cavity 25 and are distributed at intervals to divide the second water cavity 25 into a wavy waterway. The wavy waterway can increase the flow path length of the water flow in the second casing 22, which is conducive to the heat conduction between the water flow and the surface of the second casing 22.

[0038] Further, in each housing, see Figure 6 , including a plurality of first water retaining bars 29a and a plurality of second water retaining bars 29b distributed at intervals. The plurality of first water retaining bars 29a and the plurality of second water retaining bars 29b are parallel and staggered. Except for the water retaining bars 29 located at the head and tail, the first water retaining bar 29a is located between two adjacent second water retaining bars 29b, and the second water retaining bar 29b is located between two adjacent first water retaining bars 29a. In the first water chamber 24, one side of the first water retaining bar 29a is connected to one side of the first water chamber 24 in the radial direction, and the other side of the first water retaining bar 29a is spaced from the other side of the first water chamber 24 in the radial direction, and the one side of the second water retaining bar 29b is spaced from the one side of the first water chamber 24 in the radial direction, and the other side of the second water retaining bar 29b is connected to the other side of the first water chamber 24 in the radial direction. Similarly, in the second water chamber 25, one side of the first water retaining bar 29a is connected to one side of the second water chamber 25 in the radial direction, and the other side of the first water retaining bar 29a is spaced from the other side of the second water chamber 25 in the radial direction, one side of the second water retaining bar 29b is spaced from one side of the second water chamber 25 in the radial direction, and the other side of the second water retaining bar 29b is connected to the other side of the second water chamber 25 in the radial direction.

[0039] In the utility model, the faucet body 10 includes a valve body 11 and a handle 15. The valve body 11 is provided with a first cavity 12, a second cavity 13 and a water outlet cavity 14. The first cavity 12 and the second cavity 13 are distributed along the axial direction of the valve body 11, and the water outlet cavity 14 is located at the side of the second cavity 13. The temperature difference power generation unit 20 is installed in the first cavity 12, and the hot water inlet pipe 16 and the cold water inlet pipe 17 of the faucet body 10 are inserted into the first cavity 12. The hot water inlet pipe 16 is connected to the water inlet 20a of the first sleeve 21, and the cold water inlet pipe 17 is connected to the water inlet 20a of the second sleeve 22. The water mixing valve core 40 is installed in the second cavity 13, and the handle 15 is connected to the control end of the water mixing valve core 40. By controlling the action of the handle 15, the water mixing valve core 40 is controlled to open or close the output of mixed water, or adjust the temperature of the mixed water. The water outlet cavity 14 is connected to the mixed water outlet 20b of the water mixing valve core 40 and is provided with a water outlet nozzle 18. The mixed water output by the water mixing valve core 40 flows out from the water outlet nozzle 18 of the water outlet cavity 14. A bubbler can also be provided on the water outlet nozzle 18 as needed.

[0040] The digital display unit 30 includes a temperature sensor 31, a display unit 32 and a control unit 33. The temperature sensor 31 detects the temperature information of the mixed water output by the water mixing valve core 40. The temperature sensor 31 can be an NTC, but is not limited thereto. The display unit 32 is installed on the handle 15 or the valve body 11. In the figure, the display unit 32 is installed on the handle 15 as an example. The control unit 33 is connected to the temperature sensor 31, the temperature difference power generation element 26 and the display unit 32. The control unit 33 displays the temperature information of the mixed water from the temperature difference sensor in real time through the display unit 32. The control unit 33 uses a low-power MCU, and the temperature difference power generation element 26 supplies power to the display unit 32, the temperature difference sensor and the control unit 33.

[0041] If the digital display faucet has not been used for a long time, the mixed water temperature cannot be displayed in time when it is used for the first time. To solve this problem, the utility model also provides an energy storage unit 34, and the electric energy generated by the temperature difference power generation unit 20 during the use of the faucet or the cooling of the pipeline is stored in the energy storage unit 34 for reserve use. The energy storage unit 34 is connected to the control unit 33 and the temperature difference power generation unit 20, and can store electric energy to power the digital display unit 30. The energy storage unit 34 can be an energy storage capacitor or a rechargeable battery.

[0042] Furthermore, it also includes a voltage detection unit 35, which is connected to the energy storage unit 34 to detect the voltage of the energy storage unit 34. The control unit 33 is also connected to the voltage detection unit 35 to control the start or stop of the thermoelectric power generation element 26 charging the energy storage unit 34 according to the voltage, that is, the control unit 33 compares the voltage of the energy storage unit 34 with the set threshold value. When the voltage is less than the set threshold value, the thermoelectric power generation unit 20 starts charging the energy storage unit 34. When the voltage is greater than the set threshold value, the thermoelectric power generation unit 20 stops charging the energy storage unit 34.

[0043] The working principle of the digital display faucet of the utility model is as follows:

[0044] Under normal conditions, the mixing valve closes the output of the mixed water, the valve body 11 does not discharge water, and if the first water chamber 24 and the second water chamber 25 in the thermoelectric power generation unit 20 are at room temperature, the thermoelectric power generation unit 20 does not generate electricity.

[0045] When the handle 15 is operated to open the valve body 11 to discharge water, hot water and cold water enter the first water chamber 24 and the second water chamber 25 respectively. Due to the temperature difference, the thermoelectric element 26 generates electricity to supply power to the digital display unit 30, and the digital display unit 30 can normally display the mixed water temperature. The current output by the thermoelectric element 20 can also charge the energy storage unit 34.

[0046] When the current output by the thermoelectric power generation element 26 cannot supply power to the digital display unit 30 , the energy storage device can supply power to the digital display unit 30 .

[0047] The utility model designs the temperature difference power generation unit 20 as a module and places it in the valve body 11, which can save the independent power supply module device, and the product is simpler and more convenient to install.

[0048] The terms "first" and "second" appearing in the present invention are only for the convenience of description to distinguish different components with the same name, and do not indicate a sequence or primary and secondary relationship.

[0049] In the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0050] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0051] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A self-generating digital display faucet, comprising a faucet body and a digital display unit; a water mixing valve core is arranged in the faucet body to mix hot water and cold water and output the mixed water; the digital display unit is installed on the faucet body to display the temperature information of the mixed water in real time; characterized in that: It also includes a temperature difference power generation unit, which is installed in the faucet body and is provided with a first water chamber, a second water chamber and a temperature difference power generation element. The first water chamber is connected to the hot water inlet of the mixing valve core, and the second water chamber is connected to the cold water inlet of the mixing valve core. The temperature difference power generation element is arranged between the first water chamber and the second water chamber to generate electricity under the action of temperature difference and supply power to the digital display unit.

2. A self-generating digital display faucet as claimed in claim 1, characterized in that: The temperature difference power generation unit also includes a first casing, a second casing and a temperature conduction component. The first casing is provided with the first water chamber and is connected to the hot water inlet of the water mixing valve core. The second casing is provided with the second water chamber and is connected to the cold water inlet of the water mixing valve core. The temperature conduction component is arranged between the first casing and the temperature difference power generation element and between the second casing and the temperature difference power generation element to transfer temperature.

3. A self-generating digital display faucet as claimed in claim 2, characterized in that: A first plane is provided on the side of the first cover body opposite to the second cover body; a second plane is provided on the side of the second cover body opposite to the second cover body; the thermal conductivity component includes a first thermal conductivity plate and a second thermal conductivity plate, the first thermal conductivity plate is attached to the first plane, the second thermal conductivity plate is attached to the second plane, and the temperature difference power generation element is arranged between the first thermal conductivity plate and the second thermal conductivity plate.

4. The self-generating digital display faucet according to claim 2, characterized in that: The first sleeve is also provided with a water inlet, a water outlet and a plurality of water retaining strips. The water inlet is connected to the first water chamber to receive hot water, and the water outlet is connected to the first water chamber and connected to the hot water inlet of the mixing valve core; the plurality of water retaining strips are located in the first water chamber and are distributed at intervals to divide the first water chamber into a wavy waterway.

5. The self-generating digital display faucet according to claim 2, characterized in that: The second sleeve is also provided with a water inlet, a water outlet and a plurality of water retaining strips. The water inlet is connected with the second water chamber to receive cold water, and the water outlet is connected with the second water chamber and connected with the cold water inlet of the mixing valve core; the plurality of water retaining strips are located in the second water chamber and are distributed at intervals to divide the second water chamber into a wavy waterway.

6. A self-generating digital display faucet as claimed in claim 4 or 5, characterized in that: It includes a plurality of first water retaining bars distributed at intervals and a plurality of second water retaining bars distributed at intervals; the plurality of the first water retaining bars and the plurality of the second water retaining bars are staggered, one side of the first water retaining bar is connected to one side of the first water cavity or the second water cavity in the radial direction, and the other side of the first water retaining bar is spaced from the other side of the first water cavity in the radial direction, one side of the second water retaining bar is spaced from one side of the first water cavity or the second water cavity in the radial direction, and the other side of the second water retaining bar is connected to the other side of the first water cavity in the radial direction.

7. The self-generating digital display faucet according to claim 1, characterized in that: The faucet body includes a valve body and a handle, the valve body is provided with a first cavity, a second cavity and a water outlet cavity, the temperature difference power generation unit is installed in the first cavity, the mixing valve core is installed in the second cavity, the water outlet cavity is connected to the mixing water outlet of the mixing valve core; the handle is connected to the control end of the mixing valve core.

8. The self-generating digital display faucet according to claim 1, characterized in that: The digital display unit includes a temperature sensor, a display unit and a control unit. The temperature sensor detects the temperature information of the mixed water output by the mixing valve core; the control unit is connected to the temperature sensor, the temperature difference power generation element and the display unit to display the temperature information of the mixed water in real time.

9. The self-generating digital display faucet according to claim 8, characterized in that: It also includes an energy storage unit, which is connected to the temperature difference power generation unit and the control unit to store energy to power the digital display unit.

10. The self-generating digital display faucet according to claim 9, characterized in that: It also includes a voltage detection unit, which is connected to the energy storage unit to detect the voltage of the energy storage unit. The control unit is also connected to the voltage detection unit to control the start or stop of the temperature difference power generation element charging the energy storage unit according to the voltage.

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