Instant heating temperature control faucet

Abstract

The utility model discloses a kind of instant heating temperature control faucet, it is related to instant heating faucet technical field, including faucet main body, instant heating pipe is built-in in faucet main body, further include: electromagnetic reversing valve, it is set in faucet main body, the water inlet of electromagnetic reversing valve is communicated with instant heating pipe, the water outlet of electromagnetic reversing valve is communicated with the water outlet end of faucet main body, the water return of electromagnetic reversing valve is communicated with the heat preservation water tank of water purifier by water return pipe;First temperature sensor, it is set on the passage between instant heating pipe and water inlet, for detecting the water temperature of instant heating pipe;Controller, it is electrically connected with electromagnetic reversing valve and first temperature sensor, for controlling electromagnetic reversing valve to switch water outlet between water outlet and water return according to the water temperature detected by first temperature sensor, to be able to realize accurate control to water temperature, avoid appearing water temperature high and low, influence use comfort.

Description

Technical Field

[0001] This utility model relates to the field of instant hot water faucet technology, and in particular to an instant hot water faucet with temperature control. Background Technology

[0002] Currently, instant hot water faucets on the market achieve rapid heating through electric heating elements (such as ceramic heating tubes, stainless steel heating tubes, etc.), providing hot water on demand and avoiding the energy consumption problems of storage-type heating systems. However, existing instant hot water faucets still have shortcomings. In particular, instant hot water faucets that use solenoid valves to switch water circuits for temperature control generally suffer from insufficient temperature control accuracy. In addition, the shared hot and cold water supply pipes keep the pipe temperature at a lukewarm level for extended periods, which can easily lead to bacterial growth and affect water quality. Utility Model Content

[0003] The purpose of this utility model is to provide an instant hot water faucet to solve at least one of the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides an instant-heating temperature-controlled faucet, including a faucet body, wherein the faucet body has a built-in instant-heating pipe, and further comprising:

[0005] An electromagnetic reversing valve is installed inside the faucet body. The inlet of the electromagnetic reversing valve is connected to the instant heating pipe, the outlet of the electromagnetic reversing valve is connected to the outlet end of the faucet body, and the return port of the electromagnetic reversing valve is connected to the insulated water tank of the water purifier through the return pipe.

[0006] A first temperature sensor is installed in the passage between the instant heating pipe and the water inlet, and is used to detect the outlet water temperature of the instant heating pipe.

[0007] The controller is electrically connected to the electromagnetic reversing valve and the first temperature sensor, and is used to control the electromagnetic reversing valve to switch water output back and forth between the outlet and return water interfaces according to the water temperature detected by the first temperature sensor.

[0008] Optionally, the inlet port of the electromagnetic reversing valve and the return port of the electromagnetic reversing valve are located on the same side.

[0009] Optionally, the electromagnetic reversing valve includes a valve seat and a valve core, the water inlet and the water return are arranged parallel to the axis of the valve core, and the water inlet, the valve seat and the valve core are arranged sequentially along the axis of the valve core.

[0010] Optionally, the water inlet and the water return ports extend outward from the valve body along the axial direction of the valve core to form an extension, and the peripheral wall of the extension is provided with fixing holes.

[0011] Optional, also includes:

[0012] The second temperature sensor is disposed between the water outlet and the water outlet end of the faucet body;

[0013] The second temperature sensor is electrically connected to the controller, which controls the start and stop of the water pump in the water purifier based on the water temperature detected by the second temperature sensor.

[0014] Optionally, the faucet body is provided with a vent, which is located near the water outlet of the faucet body and is connected to the insulated water tank through a vent pipe passing through the faucet body.

[0015] Optional, also includes:

[0016] A heat-conducting bracket, which is fitted onto the instantaneous heating pipe;

[0017] The first heat recovery pipe and the second heat recovery pipe are both mounted on the heat-conducting support;

[0018] The first heat recovery pipe and the second heat recovery pipe are located around the instant heating pipe. The inlet end of the first heat recovery pipe is connected to the insulated water tank, the outlet end of the first heat recovery pipe is connected to the inlet end of the second heat recovery pipe, and the outlet end of the second heat recovery pipe is connected to the inlet end of the instant heating pipe.

[0019] Optional, also includes:

[0020] An integrated connector is provided with a central cavity and a first annular cavity arranged coaxially. The integrated connector is provided with a first interface and a second interface communicating with the central cavity, and a third interface and a fourth interface communicating with the first annular cavity.

[0021] The outlet of the instant heating pipe is connected to the first interface, the inlet interface is connected to the second interface, the return interface is connected to the third interface, and the fourth interface is connected to the insulated water tank.

[0022] Optionally, the integrated connector is provided with a connecting cavity and a seventh interface and an eighth interface connected to the connecting cavity on the side near the instantaneous heating pipe. The water outlet of the first heat recovery pipe is connected to the seventh interface, and the water inlet of the second heat recovery pipe is connected to the eighth interface.

[0023] Optionally, the faucet body is provided with a vent, which is located near the water outlet end of the faucet body;

[0024] The integrated connector has a second annular cavity coaxial with the central cavity. The integrated connector has a fifth interface and a sixth interface that communicate with the second annular cavity. The exhaust nozzle communicates with the fifth interface, and the sixth interface communicates with the insulated water tank of the water purifier.

[0025] The present invention achieves the following technical advantages over the prior art:

[0026] The instant-heating temperature-controlled faucet disclosed in this utility model detects the water temperature after it is heated by the instant heating pipe using a first temperature sensor. If the water temperature meets the set value, the electromagnetic reversing valve is activated, switching the working position of the valve core so that the inlet and outlet interfaces are connected, and water flows out from the outlet end of the faucet body. If the water temperature does not meet the set value, the electromagnetic reversing valve is activated again, switching the working position of the valve core so that the inlet and return interfaces are connected. The water flows through the return pipe, the insulated water tank, and the instant heating pipe in sequence, and then flows back to the electromagnetic reversing valve through the inlet interface, forming a reciprocating circulation. The controller keeps the instant heating pipe in a heating state until the first temperature sensor detects that the water temperature meets the set value. Then, the controller electrically controls the electromagnetic reversing valve to activate, switching the working position of the valve core so that the inlet and outlet interfaces are connected, and water flows out from the outlet end of the faucet body, thereby achieving precise control of the water temperature. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the interior of the vertical portion in one embodiment of the present invention. Figure 1 ;

[0030] Figure 3 This is a schematic diagram of the interior of the vertical portion in one embodiment of the present invention. Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the internal structure of the overall structure in one embodiment of the present invention. Figure 2 ;

[0032] Figure 5 This is a schematic diagram of the internal structure of the overall structure in one embodiment of the present invention. Figure 2 ;

[0033] Figure 6 This is a schematic diagram of an electromagnetic reversing valve in one embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the second connector in one embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the third connector in one embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the vertical portion after the heat-conducting support has been removed in one embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the heat-conducting support structure in one embodiment of the present invention;

[0038] Among them, 1-faucet body, 2-horizontal part, 3-vertical part, 4-water outlet, 5-integrated connector, 6-heat-conducting bracket, 7-first exhaust pipe, 8-return pipe, 9-second connector, 10-third connector, 11-extension, 12-first temperature sensor, 13-electromagnetic reversing valve, 14-first connector, 15-second exhaust pipe, 16-exhaust nozzle, 17-water inlet, 18-return pipe, 19-water outlet, 20-central cavity, 21-first annular cavity, 22-second annular cavity, 23-instant heating pipe, 24-first heat recovery pipe, 25-second heat recovery pipe, 26-central slot, 27-edge slot. Detailed Implementation

[0039] 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.

[0040] The purpose of this utility model is to provide an instant hot water faucet to solve the problems existing in the prior art, so as to achieve precise control of water temperature and avoid the situation of water temperature fluctuating, which affects the comfort of use.

[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 10As shown, this utility model provides an instant-heating temperature-controlled faucet, including a faucet body 1, with an instant heating pipe 23 built into the faucet body 1. The instant heating pipe 23 is preferably a thick-film heating pipe. It also includes an electromagnetic reversing valve 13, a first temperature sensor 12, and a controller.

[0043] The electromagnetic reversing valve 13 is installed inside the faucet body 1. Its inlet port 17 is connected to the instant heating pipe 23, and its outlet port 19 is connected to the outlet of the faucet body 1. The return port 18 of the electromagnetic reversing valve 13 is connected to the insulated water tank of the water purifier via the return pipe 8. Specifically, the inlet of the instant heating pipe 23 is connected to the insulated water tank via a pipe, and the outlet of the instant heating pipe 23 is connected to the inlet port 17 via a pipe. During use, the water purifier... The water pump pumps water from the insulated water tank into the instant heating pipe 23 through the pipeline, and then delivers it to the water inlet 17 through the pipeline. The first temperature sensor 12 is installed in the passage between the instant heating pipe 23 and the water inlet 17 to detect the outlet water temperature of the instant heating pipe 23. The controller is electrically connected to the solenoid reversing valve 13 and the first temperature sensor 12 to control the solenoid reversing valve 13 to switch the water outlet back and forth between the water outlet 19 and the return water outlet 18 according to the water temperature detected by the first temperature sensor 12. The instant-heating temperature-controlled faucet disclosed in this utility model detects the water temperature after it is heated by the instant-heating pipe 23 through the first temperature sensor 12. If the water temperature meets the set value, the electromagnetic reversing valve 13 is activated, switching the working position of the valve core so that the inlet port 17 and the outlet port 19 are connected, and water flows out from the outlet end of the faucet body 1. If the water temperature does not meet the set value, the electromagnetic reversing valve 13 is activated, switching the working position of the valve core so that the inlet port 17 and the return port 18 are connected. The water flows through the return pipe 8, the heat preservation tank and the instant-heating pipe 23 in sequence, and then flows back to the electromagnetic reversing valve 13 through the inlet port 17, forming a reciprocating circulation. The controller controls the instant-heating pipe 23 to heat until the first temperature sensor 12 detects that the water temperature meets the set value. Then, the controller electrically controls the electromagnetic reversing valve 13 to activate, switching the working position of the valve core so that the inlet port 17 and the outlet port 19 are connected, and water flows out from the outlet end of the faucet body 1, thereby achieving precise control of the water temperature.

[0044] In this embodiment, the electromagnetic reversing valve 13 adopts a two-position three-way structure, so that the valve core of the electromagnetic reversing valve 13 is in two working positions. When the valve core is in one working position, the inlet port 17 and the return port 18 are connected, and the outlet port 19 is closed. When the valve core is in the other working position, the inlet port 17 and the outlet port 19 are connected, and the return port 18 is closed. The first temperature sensor 12 detects the outlet water temperature of the instantaneous heating pipe 23, and the controller electrically controls the electromagnetic reversing valve 13 to switch the working position of the valve core according to this outlet water temperature.

[0045] In this embodiment, the water outlet end of the faucet body 1 is provided with a water outlet 4. The water outlet 4 can be a water vapor separation box with water vapor separation function to achieve water vapor separation of the faucet water and ensure smooth water flow.

[0046] In this embodiment, the inlet port 17 and the return port 18 of the electromagnetic directional valve 13 are located on the same side, so that the inlet and return directions of the electromagnetic directional valve 13 are consistent. During assembly, this facilitates quick connection of the valve body to the water circuit on the same side and simplifies the water circuit design of the horizontal section.

[0047] In this embodiment, the electromagnetic reversing valve 13 includes a valve seat and a valve core. The inlet port 17 and the return port 18 are arranged parallel to the axis of the valve core. The inlet port 17, the valve seat, and the valve core are arranged sequentially along the axis of the valve core. During assembly, the electromagnetic reversing valve 13 is arranged along the length of the horizontal part 2 of the faucet body 1, which can adapt to the narrow space of the horizontal part 2 and avoid the horizontal part 2 being too large and affecting the user experience.

[0048] In this embodiment, the inlet port 17 and the return port 18 extend outward from the valve body along the axis of the valve core to form an extension 11. The extension 11 contains two separate water passage cavities, corresponding to the inlet port 17 and the return port 18, respectively. Fixing holes are provided on the peripheral wall of the extension 11. During assembly, screws can be used to fix the electromagnetic directional valve 13 in the inner cavity of the horizontal portion 2 via these fixing holes, facilitating the fixation of the electromagnetic directional valve 13.

[0049] In this embodiment, the first temperature sensor 12 is installed on the outer wall of the water passage cavity that is connected to the water inlet interface 17. This position is close to the water outlet of the faucet body 1, and the detected water temperature is closer to the outlet water temperature, ensuring that the water temperature detected by the first temperature sensor 12 is the outlet water temperature.

[0050] In this embodiment, the instant-heating temperature-controlled faucet not only achieves precise temperature control during backflow but also enables high-temperature disinfection during backflow. Specifically, when high-temperature disinfection is required, the valve core of the electromagnetic reversing valve 13 actuates, connecting the inlet port 17 and the return port 18. The electromagnetic reversing valve 13, the instant heating pipe 23, and the insulated water tank are in a circulation loop. The instant heating pipe 23 heats the circulating water to boiling and then circulates for at least 30 seconds, achieving high-temperature disinfection of the circulation loop between the electromagnetic reversing valve 13, the instant heating pipe 23, and the insulated water tank, preventing bacterial growth. The outlet port 19 of the electromagnetic reversing valve 13 is directly connected to the outlet of the faucet body 1. Therefore, during the high-temperature backflow process, it is equivalent to high-temperature disinfection of all pipe locations within the entire faucet body 1, controlling the bacterial count of the internal water system of the faucet.

[0051] In other embodiments of this invention, the instant-heating faucet may further include a second temperature sensor, which is positioned between the water outlet 19 and the water outlet of the faucet body 1. The second temperature sensor is electrically connected to a controller, which controls the start and stop of the water pump in the water purifier based on the water temperature detected by the second temperature sensor. During backflow temperature control / high-temperature sterilization, the electromagnetic reversing valve 13, the instant heating pipe 23, and the insulated water tank are in a circulation loop, and the second temperature sensor operates. When an abnormal temperature is detected, it indicates that the electromagnetic reversing valve 13 has failed, and some high-temperature water leaks from the water outlet 19 of the electromagnetic reversing valve 13 to the water outlet of the faucet body 1, causing the faucet to leak. At this time, the second temperature sensor transmits a signal to the controller. Upon receiving the signal, the controller cuts off the power to the water pump and simultaneously interrupts heating of the instant heating pipe 23 to prevent the water pump from continuing to pump water and the instant heating pipe 23 from continuing to heat, thus avoiding the possibility of hot water scalding the user at the water outlet of the faucet body 1.

[0052] In other embodiments, a vent 16 is provided on the faucet body 1. The vent 16 is located near the water outlet of the faucet body 1 and is connected to the insulated water tank through a vent pipe passing through the faucet body 1. In this embodiment, the vent 16 is used to vent the insulated water tank. By placing the vent 16 on the faucet body 1, the overflow of water in the insulated water tank caused by the failure of the water level sensor is prevented. Specifically, the vent 16 of existing water tanks is usually located on the top side of the water tank. When the water level sensor fails, the water pump may continuously add water to the water tank. When the water tank is full, water will enter the vent 16 and overflow outside the water tank. This water will then flow along the water tank wall to other electronic components of the water purifier, such as circuit boards and solenoid valves, causing irreversible damage to the internal circuitry of the water purifier. Furthermore, the water may flow from the water purifier into the kitchen, causing flooding and serious property damage to the user. By installing the vent 16 on the faucet body 1, even if the liquid level sensor fails, the overflowing water from the tank can flow to the sink through the vent 16 (the water outlet of the faucet body 1 faces the sink, and the vent 16 also faces the sink). The water overflowing from the tank is then drained into the kitchen drain pipe through the sink, preventing the water purifier or even the kitchen from getting flooded.

[0053] In this embodiment, the instant-heating temperature-controlled faucet also includes a heat-conducting bracket 6, a first heat recovery pipe 24, and a second heat recovery pipe 25. The heat-conducting bracket 6 is sleeved on the instant-heating pipe 23. The first heat recovery pipe 24 and the second heat recovery pipe 25 are both mounted on the heat-conducting bracket 6. The first heat recovery pipe 24 and the second heat recovery pipe 25 are located around the instant-heating pipe 23. The inlet end of the first heat recovery pipe 24 is connected to the insulated water tank, and the outlet end of the first heat recovery pipe 24 is connected to the inlet end of the second heat recovery pipe 25. The outlet end of the second heat recovery pipe 25 is connected to the inlet end of the instant-heating pipe 23. During the heating process, the heat emitted from the instant-heating pipe 23 is conducted to the heat-conducting bracket 6. The first heat recovery pipe 24 and the second heat recovery pipe 25 absorb the heat conducted to the heat-conducting bracket 6, and the water in the second inlet branch pipe is preheated before being sent into the instant-heating pipe 23 and then heated to the preset value. This achieves heat recovery, which solves the problem of overheating of the faucet body 1 and reduces energy consumption.

[0054] In this embodiment, the first heat recovery pipe 24, the second heat recovery pipe 25, and the instantaneous heating pipe 23 extend in the same direction. A central slot 26 is provided on the heat-conducting bracket 6, and the instantaneous heating pipe 23 is snapped into the central slot 26. Two edge slots 27 are respectively provided on the outer wall of the heat-conducting bracket 6. Both the edge slots 27 and the central slot 26 are strip-shaped structures and extend in the same direction, thus the first heat recovery pipe 24 and the second heat recovery pipe 25 are respectively snapped into the two edge slots 27. The instantaneous heating pipe 23 is fitted into the central slot 26, and the heat-conducting bracket 23 can evenly conduct the heat emitted by the instantaneous heating pipe 23 to both sides of the heat-conducting bracket 6, exchanging heat with the first heat recovery pipe 24 and the second heat recovery pipe 25, thereby achieving uniform heat dissipation of the instantaneous heating pipe 23 and avoiding excessively high local temperatures.

[0055] In this embodiment, a first connector 14 connects the outlet of the second heat recovery pipe 25 to the inlet of the instant heating pipe 23. The first connector 14 has a first connecting cavity and a second connecting cavity. The first connecting cavity has two interfaces that are respectively connected to the outlet of the second heat recovery pipe 25 and the inlet of the instant heating pipe 23. The second connecting cavity has two other interfaces that are respectively connected to the inlet of the first heat recovery pipe 24 and the insulated water tank. In this way, the connection of the lower ports of the first heat recovery pipe 24, the second heat recovery pipe 25 and the instant heating pipe 23 is simplified by the first connector 14, which helps to reduce the size of the faucet.

[0056] In other embodiments, the first heat recovery pipe 24 and the second heat recovery pipe 25 can be spirally wrapped around the outer wall of the heat-conducting bracket 6. This extends the contact area between the water in the water tank and the heat-conducting bracket 6, improving heat recovery efficiency and the heat dissipation effect of the heat pipe 23.

[0057] In this embodiment, the instant hot water faucet also includes an integrated connector 5. The integrated connector 5 has a central cavity 20 and a first annular cavity 21 arranged coaxially. The integrated connector 5 has a first interface and a second interface communicating with the central cavity 20, and a third interface and a fourth interface communicating with the first annular cavity 21. The outlet end of the instant hot water pipe 23 is connected to the first interface, the inlet interface 17 is connected to the second interface, the return interface 18 is connected to the third interface, and the fourth interface is connected to the insulated water tank. This allows the integrated connector 5 to connect the instant hot water pipe 23, the electromagnetic reversing valve 13, and the insulated water tank. Thus, the integrated connector 5 simplifies the water circuit connection structure between the electromagnetic reversing valve 13, the instant hot water pipe 23, and the insulated water tank.

[0058] In this embodiment, the integrated connector 5 has a connecting cavity and a seventh and eighth interface connected to the connecting cavity on the side near the instantaneous heating pipe 23. The water outlet of the first heat recovery pipe 24 is connected to the seventh interface, and the water inlet of the second heat recovery pipe 25 is connected to the eighth interface, so that the water outlet of the first heat recovery pipe 24 and the water inlet of the second heat recovery pipe 25 can be connected and integrated on the integrated connector 5. This simplifies the water connection structure of the first heat recovery pipe 24 and the second heat recovery pipe 25, extends the heat exchange time between the water in the water tank and the heat-conducting support 6, and improves the efficiency of heat recovery.

[0059] In this embodiment, a vent 16 is provided on the faucet body 1, and the vent 16 is located near the water outlet end of the faucet body 1. A second annular cavity 22, coaxial with the central cavity 20, is provided inside the integrated connector 5. The integrated connector 5 has a fifth interface and a sixth interface that communicate with the second annular cavity 22. The vent 16 is connected to the fifth interface via a second vent pipe 15, and the sixth interface is connected to the insulated water tank of the water purifier via a first vent pipe 7, thus enabling communication between the vent 16 and the insulated water tank through the integrated connector 5. This simplifies the venting structure and facilitates the arrangement of the venting path, return water path, and water outlet path within the limited internal space of the faucet body 1.

[0060] In this embodiment, the entire faucet body 1 includes a vertical part 3 and a horizontal part 2. The heat pipe 23 is built into the vertical part 3, and the electromagnetic reversing valve 13 is built into the horizontal part 2. The vertical part 3 and the horizontal part 2 are connected by an integrated connector 5. The integrated connector 5 is provided with a central cavity 20, a first annular cavity 21 and a second annular cavity 22. The first annular cavity 21 is coaxially surrounded on the outer periphery of the central cavity 20, and the second annular cavity 22 is coaxially surrounded on the outer periphery of the first annular cavity 21.

[0061] In this embodiment, the integrated connector 5 includes a second connector 9 and a third connector 10 that are respectively connected to the vertical portion 3 and the horizontal portion 2. The upper cavities of the central cavity 20, the first annular cavity 21, and the second annular cavity 22 are located inside the second connector 9, and the lower cavities of the central cavity 20, the first annular cavity 21, and the second annular cavity 22 are located inside the second connector 10. The second connector 9 and the third connector 10 are combined together to form the integrated connector 5, and the central cavity 20, the first annular cavity 21, and the second annular cavity 22 are located inside the integrated connector 5.

[0062] The second connector 9 and the third connector 10 are coaxially rotatably connected to achieve rotational adjustment of the vertical part 3 and the horizontal part 2. The central cavity 20 of the second connector 9 and the central cavity 20 of the third connector 10 are coaxially rotatably and sealingly connected. Preferably, they are interlocked, and a sealing ring is fitted between them for rotational sealing. The first annular cavity 21 of the second connector 9 and the first annular cavity 21 of the third connector 10 are coaxially rotatably and sealingly connected. Preferably, they are interlocked, and a sealing ring is fitted between them for rotational sealing. The second annular cavity 22 of the second connector 9 and the second annular cavity 22 of the third connector 10 are coaxially rotatably and sealingly connected. Preferably, they are interlocked, and a sealing ring is fitted between them for rotational sealing.

[0063] Furthermore, the central cavity 20 of the second connector 9 is connected to the water inlet 17 of the electromagnetic reversing valve 13, the first annular cavity 21 of the second connector 9 is connected to the water return 18 of the electromagnetic reversing valve 13, and the second annular cavity 22 of the second connector 9 is connected to the vent 16, which is located on the horizontal part 2; the central cavity 20 of the third connector 10 is connected to the water outlet of the instant heating pipe 23, the second annular cavity 22 of the third connector 10 is connected to the insulated water tank, and the second annular cavity 22 of the third connector 10 is connected to the vent of the insulated water tank.

[0064] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0065] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0066] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An instant-heating temperature-controlled faucet, comprising a faucet body, wherein the faucet body has a built-in instant-heating pipe, characterized in that, Also includes: An electromagnetic reversing valve is installed inside the faucet body. The inlet of the electromagnetic reversing valve is connected to the instant heating pipe, the outlet of the electromagnetic reversing valve is connected to the outlet end of the faucet body, and the return port of the electromagnetic reversing valve is connected to the insulated water tank of the water purifier through the return pipe. A first temperature sensor is installed in the passage between the instant heating pipe and the water inlet, and is used to detect the outlet water temperature of the instant heating pipe. The controller is electrically connected to the electromagnetic reversing valve and the first temperature sensor, and is used to control the electromagnetic reversing valve to switch water output back and forth between the outlet and return water interfaces according to the water temperature detected by the first temperature sensor.

2. The instant hot water faucet according to claim 1, characterized in that, The inlet and outlet ports of the electromagnetic reversing valve are located on the same side.

3. The instant hot water faucet according to claim 2, characterized in that, The electromagnetic reversing valve includes a valve seat and a valve core. The water inlet and the water return are arranged parallel to the axis of the valve core. The water inlet, the valve seat, and the valve core are arranged sequentially along the axis of the valve core.

4. The instant hot water faucet according to claim 3, characterized in that, The water inlet and the water return extend outward from the valve body along the axis of the valve core to form an extension, and a fixing hole is provided on the peripheral wall of the extension.

5. The instant hot water faucet according to claim 1, characterized in that, Also includes: The second temperature sensor is disposed between the water outlet and the water outlet end of the faucet body; The second temperature sensor is electrically connected to the controller, which controls the start and stop of the water pump in the water purifier based on the water temperature detected by the second temperature sensor.

6. The instant hot water faucet according to claim 1, characterized in that, The faucet body is provided with a vent, which is located near the water outlet of the faucet body and is connected to the insulated water tank through a vent pipe passing through the faucet body.

7. The instant hot water faucet according to any one of claims 1 to 6, characterized in that, Also includes: A heat-conducting bracket, which is fitted onto the instantaneous heating pipe; The first heat recovery pipe and the second heat recovery pipe are both mounted on the heat-conducting support; The first heat recovery pipe and the second heat recovery pipe are located around the instant heating pipe. The inlet end of the first heat recovery pipe is connected to the insulated water tank, the outlet end of the first heat recovery pipe is connected to the inlet end of the second heat recovery pipe, and the outlet end of the second heat recovery pipe is connected to the inlet end of the instant heating pipe.

8. The instant hot water faucet according to claim 1, characterized in that, Also includes: An integrated connector is provided with a central cavity and a first annular cavity arranged coaxially. The integrated connector is provided with a first interface and a second interface communicating with the central cavity, and a third interface and a fourth interface communicating with the first annular cavity. The outlet of the instant heating pipe is connected to the first interface, the inlet interface is connected to the second interface, the return interface is connected to the third interface, and the fourth interface is connected to the insulated water tank.

9. The instant hot water faucet according to claim 8, characterized in that, The integrated connector has a connecting cavity and a seventh and eighth interface connected to the connecting cavity on the side near the instantaneous heating pipe. The water outlet of the first heat recovery pipe is connected to the seventh interface, and the water inlet of the second heat recovery pipe is connected to the eighth interface.

10. The instant hot water faucet according to claim 8 or 9, characterized in that, The faucet body is provided with a vent, which is located near the water outlet end of the faucet body. The integrated connector has a second annular cavity coaxial with the central cavity. The integrated connector has a fifth interface and a sixth interface that communicate with the second annular cavity. The exhaust nozzle communicates with the fifth interface, and the sixth interface communicates with the insulated water tank of the water purifier.

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