A two-stage heated tap

Abstract

The application provides a two-stage heating faucet, which comprises a faucet body, a water inlet channel and a water outlet channel which are communicated and are formed by the faucet body, a first-stage heating module which is arranged in the water inlet channel and is used for performing first-stage heating on water flow in the water inlet channel, a second-stage heating module which is arranged in the water outlet channel and is used for performing second-stage heating on water flow in the water outlet channel, and a control module which is in electrical communication with the first-stage heating module and the second-stage heating module and is used for controlling start-stop and heating power of the first-stage heating module and the second-stage heating module. The application realizes instant heating of water outlet and significantly improves heating efficiency.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, and more specifically, to a two-stage heating water tap. Background Technology

[0002] A faucet is the core device for controlling water flow. It controls the amount of water flowing and has water-saving effects. It is mainly used in homes, public places and other scenarios.

[0003] Currently, the distance to hot water from faucets on the market is relatively long. When turning on the hot water mode, the cold water in the pipes needs to be drained before hot water comes out. Therefore, the faucet needs to be turned on for a period of time. During this process, the hot water in the pipes may cool down, and the water heater needs to work continuously, which not only wastes water but also electricity, affecting the user experience. Utility Model Content

[0004] This application provides a two-stage heating faucet that can provide instant hot water, improve heating efficiency, reduce energy consumption, and enhance the user experience.

[0005] This application provides a two-stage heating faucet, including a faucet body, the interior of which encloses a connected inlet channel and an outlet channel, and further including: a primary heating module disposed in the inlet channel for primary heating of the water flow in the inlet channel; a secondary heating module disposed in the outlet channel for secondary heating of the water flow in the outlet channel; and a control module electrically connected to the primary heating module and the secondary heating module for controlling the start / stop and heating power of the primary heating module and the secondary heating module.

[0006] In some embodiments, the faucet body includes a vertical pipe and a horizontal pipe. The inlet end of the vertical pipe is connected to the outlet end of the inlet pipe, and the inlet channel is provided inside the vertical pipe. The inlet end of the horizontal pipe is connected to the outlet end of the vertical pipe, and the outlet end of the horizontal pipe is provided with an outlet. The outlet channel is provided inside the horizontal pipe. The primary heating module is disposed inside the vertical pipe, and the secondary heating module is disposed inside the horizontal pipe.

[0007] In some embodiments, a primary filter screen is also included, which is disposed at the inlet end of the vertical pipe and is used to filter impurities inside the water flow at the outlet end of the inlet pipe.

[0008] In some embodiments, a secondary filter screen is also included, which is disposed at the outlet end of the horizontal pipe and is used to filter impurities inside the water flowing through the outlet.

[0009] In some embodiments, a heating element is further included, which is disposed on the outside of the water inlet end of the faucet body; the heating element is provided with a heat storage body and an electric heating unit for heating the heat storage body, the outlet of the heating element is connected to the water inlet channel for preheating the water flow before it enters the faucet body, and the heating element is electrically connected to the control module.

[0010] In some embodiments, the control module includes: a main control unit; a signal acquisition unit connected to the main control unit for acquiring inlet water temperature, outlet water temperature, and water flow signal; and a power drive unit connected to the main control unit for controlling the on / off state of the primary heating module and the secondary heating module according to instructions issued by the main control unit; the main control unit is configured to: acquire the inlet water temperature, outlet water temperature, and water flow signal, and when the water flow signal indicates that water is flowing and the outlet water temperature is lower than a set temperature, control the power drive unit to start the primary heating module and the secondary heating module for heating.

[0011] In some embodiments, the system further includes a screen bracket and a display screen, wherein the screen bracket is fixed to the outer wall of the faucet body and the display screen is embedded in the screen bracket; the main control unit is communicatively connected to the display screen.

[0012] In some embodiments, the primary heating module is an instantaneous electric heating tube, and the secondary heating module is an instantaneous electric heating tube.

[0013] In some embodiments, the primary filter screen includes a first filter screen support and a first filter screen, the first filter screen being fixedly mounted on the first filter screen support, and the first filter screen support being detachably connected to the water inlet end of the vertical pipe.

[0014] In some embodiments, the secondary filter screen includes a second filter screen support and a second filter screen, the second filter screen being fixedly mounted on the second filter screen support, and the second filter screen support being detachably connected to the outlet of the horizontal pipe.

[0015] In this embodiment, a two-stage heating mode is formed by setting a primary heating module and a secondary heating module in the corresponding water inlet and outlet channels inside the faucet body, respectively. This directly heats the flowing water, allowing the water to be heated quickly as it passes through the internal channels of the faucet body, thus achieving instant hot water output. This significantly improves heating efficiency, saves energy, and enhances the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a two-stage heating water tap provided in the first specific embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a two-stage heating water tap provided in the second specific embodiment of this application;

[0019] Figure 3 This is an internal schematic diagram of a two-stage heating water tap provided in the first specific embodiment of this application;

[0020] Figure 4 for Figure 3 A cross-sectional view;

[0021] Figure 5 A schematic diagram of the structure of a two-stage heating water tap provided in the third specific embodiment of this application;

[0022] Figure 6 A schematic diagram of the structure of the primary filter screen in a two-stage heated water tap provided for some specific embodiments of this application;

[0023] Figure 7 This is a schematic diagram of the structure of the secondary filter screen in a secondary heating faucet provided for some specific embodiments of this application.

[0024] The attached figures are labeled as follows:

[0025] 1. Faucet body; 2. Primary heating module; 3. Secondary heating module; 4. Heat pack; 5. Screen bracket; 6. Display screen; 7. Primary filter; 8. Secondary filter; 9. Cable;

[0026] 11. Vertical pipe; 12. Horizontal pipe; 71. First filter screen support; 72. First filter screen; 81. Second filter screen support; 82. Second filter screen;

[0027] 111. Water inlet channel; 121. Water outlet channel; 122. Water outlet. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 This application provides a two-stage heating faucet, including a faucet body 1. The interior of the faucet body 1 has a hollow structure, forming an interconnected water inlet channel 111 and a water outlet channel 121, constituting a water flow path. A primary heating module 2 is installed in the water inlet channel 111 of the faucet body 1, which heats the water flow in the water inlet channel 111 once. A secondary heating module 3 is installed in the water outlet channel 121 of the faucet body 1, which heats the water flow in the water outlet channel 121 a second time.

[0030] The secondary heating faucet also includes a control module, which is electrically connected to the primary heating module 2 and the secondary heating module 3 via wires, thereby controlling the start-up, shutdown and heating power of the secondary heating module 3.

[0031] The control module can automatically control the start and stop of the two-stage heating module according to the temperature set by the user. The control module has temperature detection and water flow detection functions, and monitors the inlet and outlet water temperatures in real time to ensure that heating is only started when there is water flow. It also has overheat protection and dry burning protection functions to ensure safe use.

[0032] Both the primary heating module 2 and the secondary heating module 3 can be, but are not limited to, instant heating tubes, instant heating wires, ceramic heating elements, composite heating elements with a surface-attached resistance film, electromagnetic induction heating elements, microwave generators, etc.

[0033] External cold water enters the inlet channel 111, is heated once by the primary heating module 2, flows into the outlet channel 121, is heated a second time by the secondary heating module 3, and finally flows out from the outlet 122.

[0034] The heating principle of this application employs a two-stage series instantaneous heating scheme, directly converting electrical energy into heat energy to rapidly and progressively heat flowing cold water, thereby achieving the effect of hot water being dispensed immediately from outlet 122. Compared to traditional single-point heating faucets or methods relying on external heat sources, this approach offers the following significant advantages:

[0035] This application employs a two-stage series heating architecture: the first-stage heating module 2 preheats the cold water, while the second-stage heating module 3 supplements the heating of the warm water. This avoids the problem of excessive instantaneous power demand from a single heating module, enabling the provision of high-temperature hot water in a short time, achieving rapid instant heating and reducing user waiting time. Furthermore, the two-stage heating mode allows for gradient control and fine adjustment of the water temperature. Even if the inlet water temperature or flow rate fluctuates, the control module can maintain a constant final outlet water temperature by adjusting the power ratio of the two modules (e.g., relying primarily on the first-stage module or having both modules work in tandem), improving the stability of the outlet water temperature and preventing sudden temperature changes, thus enhancing the user experience. In addition, the control module in this application can control the two heating modules to heat as needed based on actual requirements. For example, in summer when the inlet water temperature is high, only the second-stage heating module 3 can be activated for low-temperature heating; when a small amount of hot water is needed, only the first-stage module can be activated, achieving on-demand power allocation and segmented heating. Compared to the mode where a single high-power heating module always operates at full power, this effectively reduces energy consumption and achieves energy saving.

[0036] Therefore, the two heating modules in this embodiment can be controlled independently, providing flexible heating methods. If one heating module fails, the other can still provide heating, thus improving the system's reliability.

[0037] In this embodiment, the two-stage heating module is directly built into the water inlet channel 111 and the water outlet channel 121 of the faucet body 1, which does not occupy external space, saves space, has a compact structure, and is highly integrated.

[0038] In one specific embodiment, the faucet body 1 includes a vertical pipe 11 and a horizontal pipe 12. The vertical pipe 11 is a hollow pipe running vertically or nearly vertically, with its inlet end connected to the outlet end of the inlet pipe, forming an inlet channel 111. The horizontal pipe 12 is a hollow pipe running horizontally or nearly horizontally, forming an outlet channel 121. One end of the horizontal pipe 12 is the inlet end, connected to the outlet end of the vertical pipe 11, and the other end of the horizontal pipe 12 has an outlet 122. The horizontal pipe 12 can be formed into the outlet end of the vertical pipe 11 by threading, welding, or integral casting, forming a faucet body in the shape of an "L" or "T". A primary heating module 2 is fixedly installed inside the vertical pipe 11, and a secondary heating module 3 is installed and fixed inside the horizontal pipe 12. The primary and secondary heating modules 3 are connected in series in the internal channel of the faucet body 1.

[0039] like Figure 4As shown. Further, a primary filter screen 7 is installed at the water inlet end of the vertical pipe 11. The primary filter screen 7 can be made of corrosion-resistant, high-strength metal material (such as 304 stainless steel), and its mesh size can be set according to water quality conditions, for example, between 40 mesh and 100 mesh, to effectively intercept larger particles of impurities such as rust and silt in the water. The primary filter screen 7, through its external threads on its outer wall, engages with the internal threads on the inner wall of the water inlet end of the vertical pipe 11, forming a sealed and detachable threaded connection structure. This filters impurities inside the water flow at the water outlet end of the inlet pipe, facilitating cleaning or replacement of the primary filter screen 7 and simplifying maintenance.

[0040] like Figure 4 As shown. Furthermore, a secondary filter screen 8 is also provided at the outlet end of the horizontal pipe 12. The secondary filter screen 8 can filter out impurities inside the water flowing through the outlet 122. The filtered clean water then flows out from the filter screen assembly and enters the water inlet channel 111 of the vertical pipe 11, and flows to the subsequent primary heating module 2.

[0041] like Figure 5 As shown. To further improve heating efficiency, this embodiment of the application also includes a heat pack 4, which is located on the outside of the water inlet end of the faucet body. The heat pack 4 has a heat storage body and an electric heating unit for heating the heat storage body inside. The outlet of the heat pack 4 is connected to the water inlet channel 111 to preheat the water flow before it enters the faucet body. The heat pack 4 is electrically connected to the control module.

[0042] The thermal storage body is a solid module made of high-specific-heat-capacity, high-density materials. Its interior features meandering water flow channels to increase the contact area with the water. The electric heating unit is an electric heating element embedded inside or tightly wrapped around the thermal storage body, heating it when energized. The thermal storage body and electric heating unit are surrounded by an insulation layer made of insulating materials (such as polyurethane foam or rock wool) to minimize heat loss during standby, thus achieving energy savings. A temperature sensor is installed inside the thermal storage body to monitor its temperature in real time.

[0043] Cold water first enters the inlet of heat pack 4 and flows through the meandering channels inside the heat storage body. During this process, the cold water undergoes efficient heat exchange with the high-temperature heat storage body, absorbing the stored heat and significantly raising the water temperature (achieving preheating). Subsequently, the preheated water flows out from the outlet of heat pack 4 and is transported through a pipe to the inlet channel 111 of the faucet body. Therefore, the function of heat pack 4 is to perform primary preheating on the water flow before it enters the faucet body.

[0044] The heating element and temperature sensor of heat pack 4 are electrically connected to the control module via a cable. The control module receives temperature signals from the temperature sensor of heat pack 4 in real time. When the temperature of the heat storage body is detected to be lower than the preset heat storage temperature, the control module supplies power to the heating element of heat pack 4 to slowly heat the heat storage body until it reaches the target temperature and then stops.

[0045] The control module in the above embodiment includes a main control unit, a signal acquisition unit, and a power drive unit. The signal acquisition unit is connected to the main control unit and acquires inlet water temperature, outlet water temperature, and water flow signals. The power drive unit is also connected to the main control unit and is used to control the on / off state of the primary heating module 2 and the secondary heating module 3 according to the instructions issued by the main control unit. When the main control unit acquires the inlet water temperature, outlet water temperature, and water flow signals, and the water flow signal indicates that water is flowing and the outlet water temperature is lower than the set temperature, it controls the power drive unit to start the primary heating module 2 and the secondary heating module 3 for heating.

[0046] The main control unit can be a microcontroller, capable of reading temperature sensor data and water flow sensor status, and controlling the on / off state of relays. The main control unit can communicate with the display screen 6. Temperature detection can utilize two waterproof temperature sensors: one installed at the inlet (before the primary heating module 2), and the other at the outlet 122 (after the secondary heating module 3), to monitor water temperature in real time and provide feedback to the main control unit for control. Water flow detection can employ a Hall effect water flow sensor installed in the inlet pipe. Heating is only initiated when water flow is detected, preventing dry burning. Each heating module is controlled by a relay. The power supply module provides power to the main control unit, all sensors, and relays. Furthermore, each heating module can be connected in series with a temperature fuse. The main control unit circuit is equipped with an over-temperature protection program; if the outlet water temperature exceeds the set value, the temperature fuse will blow, immediately cutting off heating.

[0047] The display screen 6 can be installed on the upper part of the faucet body 1, for example, on the top of the vertical pipe 11. Figure 1 As shown, it can also be installed on the vertical pipe 11 located below the horizontal pipe 12, such as... Figure 2 As shown, this application does not limit the specific location of the display screen 6.

[0048] like Figure 6 As shown. In one specific embodiment, the primary filter 7 includes a first filter support 71 and a first filter 72. The first filter 72 is disposed inside the first filter support 71. The two can be snap-fitted, threaded, screwed, welded, or integrally formed. The first filter support 71 is detachably connected to the water inlet end of the vertical pipe 11. The two can be threaded, snap-fitted, or magnetically connected to facilitate the disassembly of the primary filter 7 and the replacement of the entire primary filter 7 or only the first filter 72.

[0049] like Figure 7 As shown. Further, the secondary filter screen 8 includes a second filter screen support 81 and a second filter screen 82. The second filter screen 82 is connected to the second filter screen support 81. The second filter screen support 81 is detachably installed at the outlet 122 of the horizontal pipe 12 for easy disassembly and replacement.

[0050] The above provides a detailed description of the two-stage heating water faucet provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A two-stage heating water faucet, characterized in that, The faucet body (1) includes a water inlet channel (111) and a water outlet channel (121) that are enclosed and connected within the faucet body (1), and also includes: A primary heating module (2) is installed in the water inlet channel (111) to heat the water flow in the water inlet channel (111) once. A secondary heating module (3) is installed in the water outlet channel (121) to perform secondary heating on the water flow in the water outlet channel (121); The control module is electrically connected to the primary heating module (2) and the secondary heating module (3) and is used to control the start-up and shutdown of the primary heating module (2) and the heating power of the secondary heating module (3).

2. The secondary heating water faucet according to claim 1, characterized in that, The faucet body (1) includes a vertical pipe (11) and a horizontal pipe (12). The inlet end of the vertical pipe (11) is connected to the outlet end of the inlet pipe. The inlet channel (111) is provided inside the vertical pipe (11). The inlet end of the horizontal pipe (12) is connected to the outlet end of the vertical pipe (11). The outlet end of the horizontal pipe (12) is provided with an outlet (122). The outlet channel (121) is provided inside the horizontal pipe (12). The primary heating module (2) is located inside the vertical pipe (11), and the secondary heating module (3) is located inside the horizontal pipe (12).

3. The secondary heating water faucet according to claim 2, characterized in that, It also includes a primary filter screen (7), which is installed at the inlet end of the vertical pipe (11) to filter impurities inside the water flow at the outlet end of the inlet pipe.

4. The secondary heating water faucet according to claim 3, characterized in that, It also includes a secondary filter screen (8), which is set at the outlet end of the horizontal pipe (12) to filter impurities inside the water flowing through the outlet (122).

5. The secondary heating water faucet according to claim 1, characterized in that, It also includes a heat pack (4), which is located on the outside of the water inlet end of the faucet body (1); the heat pack (4) is provided with a heat storage body and an electric heating unit for heating the heat storage body, the outlet of the heat pack (4) is connected to the water inlet channel (111) for preheating the water flow before it enters the faucet body (1), and the heat pack (4) is electrically connected to the control module.

6. The secondary heating water faucet according to any one of claims 1 to 5, characterized in that, The control module includes: Main control unit; The signal acquisition unit is connected to the main control unit and is used to acquire inlet water temperature, outlet water temperature and water flow signals. A power drive unit, connected to the main control unit, is used to control the on / off state of the first-stage heating module (2) and the second-stage heating module (3) respectively according to the instructions issued by the main control unit; The main control unit is configured to: acquire the inlet water temperature, outlet water temperature and water flow signal, and when the water flow signal indicates that there is water flow and the outlet water temperature is lower than the set temperature, control the power drive unit to start the first-level heating module (2) and the second-level heating module (3) for heating.

7. The secondary heating water faucet according to claim 6, characterized in that, It also includes a screen bracket (5) and a display screen (6), wherein the screen bracket (5) is fixed to the outer wall of the faucet body (1), and the display screen (6) is embedded in the screen bracket (5); the main control unit is communicatively connected to the display screen (6).

8. The secondary heating water faucet according to claim 1, characterized in that, The first-stage heating module (2) is an instant electric heating tube, and the second-stage heating module (3) is an instant electric heating tube.

9. The secondary heating water faucet according to claim 3, characterized in that, The primary filter screen (7) includes a first filter screen support (71) and a first filter screen (72). The first filter screen (72) is fixed to the first filter screen support (71), and the first filter screen support (71) is detachably connected to the water inlet end of the vertical pipe (11).

10. The secondary heating water faucet according to claim 4, characterized in that, The secondary filter (8) includes a second filter support (81) and a second filter (82). The second filter (82) is fixed to the second filter support (81), and the second filter support (81) is detachably connected to the outlet (122) of the horizontal pipe (12).

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