Water heating mechanism and water purifying device
By introducing a water circuit switching mechanism and temperature detection into the water purification device, the heat loss and residual water problems of the water purification device during the heating process are solved, and the constant effluent temperature and the reduction of residual water are achieved.
Patent Information
- Application Number
- CN202421976175.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The existing water purification devices have problems such as heat loss and a lot of residual water after the water is cut off during the heating process, resulting in an inconsistent water outlet temperature and poor user experience.
The water circuit switching mechanism is used to discharge water that reaches the target temperature to the outlet pipe, and water that does not reach the target temperature is reflowed or discharged. The water circuit switching is accurately controlled in combination with the temperature detection mechanism to reduce heat loss and residual water.
The constant water outlet temperature and the reduction of residual water after water outage are achieved, improving the user experience.
Smart Images
Figure CN223064056U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of household appliances, in particular to a water heating mechanism and a water purification device. Background Art
[0002] A water purifier is a water purification device that has both water purification and rapid heating functions. It takes a certain amount of time for a rapid heating water purification device to heat water to the target temperature. For example, a heating body with a power of 2100W at room temperature takes about 15-16 seconds to heat water from 25°C to 98°C. In addition, since the heating power of the heating body is relatively large (generally 18KW-22KW), the hot water heated by the heating body generally contains bubbles. In order to prevent boiling water bubbles from bursting and splashing, thereby scalding the user, a water vapor separation box is generally designed downstream of the heating body, and the heating body and the water vapor separation box are connected by a long pipe.
[0003] Because there is a water vapor separation box and a long pipe from the water outlet of the heating body to the water outlet of the nozzle, there is not only heat loss in the water outlet process, resulting in a lower water temperature when the user receives water in the early stage, resulting in a poor user experience, but also a long period of residual water after the water supply is cut off, further resulting in a lower initial water outlet temperature when the user uses water next time.
[0004] How to propose a water heating mechanism and a water purification device with a constant outlet water temperature and less residual water after water outage is a technical problem that urgently needs to be solved. Utility Model Content
[0005] The first object of the utility model is to provide a water heating mechanism, the outlet water temperature of which is constant and the residual water can be recovered.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] A water heating mechanism comprises: a heating body, the heating body having a first water inlet and a first water outlet, and water can be supplied to the heating body through the first water inlet; a water vapor separation box, the water vapor separation box having a second water inlet and a second water outlet, the second water inlet is connected to the first water outlet; a water outlet pipe, one end of the water outlet pipe is connected to the second water outlet; a water circuit switching mechanism, the water circuit switching mechanism having a first water outlet state for discharging water that has reached a target temperature to the water outlet pipe, and a second water outlet state for discharging water that has not reached the target temperature to the outside of the water outlet pipe.
[0008] Preferably, the water circuit switching mechanism is a two-position three-way solenoid valve, and the two-position three-way solenoid valve is arranged between the water vapor separation box and the water outlet pipe.
[0009] Preferably, the water path switching mechanism has a valve inlet, a first valve outlet, and a second valve outlet. The valve inlet is communicated with the second water outlet, the first valve outlet is communicated with the water outlet pipe, and water that has not reached the target temperature can be directly discharged through the second valve outlet.
[0010] Preferably, the water heating mechanism further includes a return pipe. The water path switching mechanism in the second water outlet state can conduct the second water outlet and the return pipe to return water that has not reached the target position to the heating body through the return pipe.
[0011] Preferably, the water heating mechanism further includes a water inlet pipe. One end of the water inlet pipe is communicated with the first water inlet, and the other end of the water inlet pipe is communicated with the return pipe.
[0012] Preferably, a first pipe joint is provided on the water inlet pipe, a second pipe joint is provided on the water path switching mechanism, and the return pipe is connected between the first pipe joint and the second pipe joint.
[0013] Preferably, the first pipe joint is a three-way pipe joint. The first pipe joint includes an original water port, a return water port, and a pipe outlet. The original water port is used for connecting to an external water source, and the return water port is communicated with the return pipe. The water heating mechanism further includes a water pump. The suction pipe of the water pump is communicated with the pipe outlet, and the drain pipe of the water pump is communicated with the other end of the water inlet pipe.
[0014] Preferably, the water heating mechanism further includes a first temperature detection mechanism. The first temperature detection mechanism is provided on the water outlet pipe and is located between the water vapor separation box and the water path switching mechanism.
[0015] Preferably, the water heating mechanism further includes a second temperature detection mechanism. The second temperature detection mechanism is provided between the heating body and the water vapor separation box.
[0016] The second object of the present invention is to provide a water purification device, and the water outlet temperature of the water purification device is constant and the remaining water is less after the water supply is stopped.
[0017] To achieve this purpose, the present invention adopts the following technical solutions:
[0018] A water purification device includes a water purification mechanism and the above-mentioned water heating mechanism. The water purification outlet of the water purification mechanism is communicated with the first water inlet.
[0019] The beneficial effects of the present invention:
[0020] The water heating mechanism provided by the present utility model includes a heating body, a water vapor separation box, a water outlet pipe, and a water path switching mechanism. The heating body has a first water inlet and a first water outlet, and water can be supplied to the heating body through the first water inlet. The water vapor separation box has a second water inlet and a second water outlet, and the second water inlet is communicated with the first water outlet. One end of the water outlet pipe is communicated with the second water outlet. The water path switching mechanism has a first water outlet state in which water reaching the target temperature is discharged to the water outlet pipe, and a second water outlet state in which water not reaching the target temperature is discharged outside the water outlet pipe. By setting the water path switching mechanism, this water heating mechanism can not only discharge the water reaching the target temperature to the water outlet pipe and flow out through the water outlet pipe for users to use, making the outlet water temperature constant, but also discharge the water not reaching the target temperature outside the water outlet pipe. The water not reaching the target temperature includes the remaining water in the water vapor separation box, thus avoiding the phenomenon that the initial temperature of the next outlet water is relatively low caused by the remaining water after the water supply is stopped.
[0021] The water purification device provided by the present utility model includes a water purification mechanism and a water heating mechanism. The water purification outlet of the water purification mechanism is communicated with the first water inlet of the water heating mechanism. By using the water heating mechanism, this water purification device can improve the constancy of the outlet water temperature and reduce the remaining water after the water supply is stopped. Description of the Drawings
[0022] Figure 1 is a schematic diagram of a water heating mechanism provided by an embodiment of the present utility model;
[0023] Figure 2 is a schematic diagram of another water heating mechanism provided by an embodiment of the present utility model;
[0024] Figure 3 is an assembly diagram of the water vapor separation box, the water path switching mechanism, and the water outlet pipe provided by an embodiment of the present utility model;
[0025] Figure 4 is a schematic diagram of the water inlet pipe, the first pipe joint, and the water pump provided by an embodiment of the present utility model.
[0026] In the figure:
[0027] 100, heating body; 200, water vapor separation box; 201, second water inlet; 202, second water outlet; 203, exhaust port; 300, water outlet pipe; 301, drain port; 400, water path switching mechanism; 500, water inlet pipe; 600, first pipe joint; 610, original water port; 620, return water port; 630, pipe outlet; 700, second pipe joint; 800, return pipe; 900, water pump; 910, suction pipe; 920, drain pipe. Detailed Embodiment
[0028] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.
[0029] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.
[0031] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.
[0032] The present utility model provides a water heating mechanism, which can be used in a water purification device to achieve rapid heating of the filtered water. Of course, in addition to the water purification device, this water heating mechanism can also be used in other devices with the need to heat water, which will not be listed one by one here.
[0033] Specifically, as Figures 1 to 3As shown in the figure, the water heating mechanism includes a heating body 100, a water-vapor separation box 200, a water outlet pipe 300, and a water path switching mechanism 400. The heating body 100 is used to heat water. The heating body 100 has a first water inlet and a first water outlet. Water can be supplied to the heating body 100 through the first water inlet, and the water heated by the heating body 100 can be discharged through the first water outlet. The water-vapor separation box 200 is used to achieve the water-vapor separation of the hot water formed by rapid heating, avoiding the explosion of bubbles in the rapidly heated water and scalding users. The water-vapor separation box 200 has a second water inlet 201 and a second water outlet 202. The second water inlet 201 is directly communicated with the first water outlet, so that the hot water heated by the heating body 100 can directly enter the water-vapor separation box 200. One end of the water outlet pipe 300 is communicated with the second water outlet 202, and the other end of the water outlet pipe 300 is a water discharge port 301. The user can place a water container such as a water cup at the water discharge port 301 to receive water. The water path switching mechanism 400 is used to control the on-off and switching of the water path in the water heating mechanism. Specifically, the water path switching mechanism 400 has a first water outlet state in which the water reaching the target temperature is discharged to the water outlet pipe 300, and a second water outlet state in which the water not reaching the target temperature is discharged outside the water outlet pipe 300.
[0034] Compared with the prior art in which the heating body and the water-vapor separation box are connected by a slender pipeline, the water heating mechanism provided by the present utility model directly connects the second water inlet 201 of the water-vapor separation box 200 with the first water outlet of the heating body 100, shortening the water path distance between the two and reducing the energy loss in the hot water. And compared with the prior art in which there is more remaining water in the water-vapor separation box after the water supply is stopped, the water heating mechanism provided by the present utility model is provided with a water path switching mechanism 400 to control the on-off and switching of the water path in the water heating mechanism by using the water path switching mechanism 400. When the water reaches the target temperature, the water path switching mechanism 400 switches to the first water outlet state, conducting the water path between the water-vapor separation box 200 and the water outlet pipe 300, so that the water reaching the target temperature is discharged to the water outlet pipe 300 and flows out through the water discharge port 301 for the user to use, making the water temperature at the water discharge port 301 constant; when the water does not reach the target temperature, the water path switching mechanism 400 switches to the second water outlet state, discharging the water not reaching the target temperature outside the water outlet pipe 300. Since the water not reaching the target temperature includes the remaining water in the water-vapor separation box 200, the phenomenon that the initial water temperature is relatively low in the next water discharge due to the remaining water after the water supply is stopped can be avoided, improving the constancy of the water temperature at the water discharge port 301 from another aspect.
[0035] In some embodiments, the heating body 100 is a heating resistance wire. After the heating resistance wire is energized, it can generate heat, and the water with a lower temperature can be heated to a higher temperature after passing through the heating resistance wire; of course, in addition to using a heating resistance wire, the heating body 100 can also use a ceramic heating sheet or other heat-generating structures.
[0036] In some embodiments, the water vapor separation box 200 includes a box body and a partition plate disposed inside the box body. The partition plate divides the inside of the box body to form at least two communicating chambers. The box body is provided with a second water inlet 201, a second water outlet 202, and an exhaust port 203. The second water inlet 201 communicates with one chamber, the second water outlet 202 communicates with another chamber, and the exhaust port 203 is disposed at the top of the box body.
[0037] In some embodiments, the water that does not reach the target temperature is directly discharged as wastewater through the water path switching mechanism 400. Optionally, when the water heating mechanism is used in a water purification device, the wastewater can be centrally collected in the wastewater box of the water purification device.
[0038] Optionally, as Figure 1 shown, the water path switching mechanism 400 is a two-position three-way solenoid valve. The two-position three-way solenoid valve is disposed at the connection between the second water outlet 202 of the water vapor separation box 200 and the water outlet pipe 300. The two-position three-way solenoid valve has three valve ports, one of which is a valve inlet, and the other two are a first valve outlet and a second valve outlet. The valve inlet is used to communicate with the second water outlet 202, the first valve outlet is used to communicate with the water outlet pipe 300, and the second valve outlet is used as the water outlet for discharging the water that does not reach the target temperature. Of course, a waste water discharge pipe can also be connected to the second valve outlet, and the waste water discharge pipe is communicated with the waste water box, so that the water that does not reach the target temperature can flow into the waste water box through the waste water discharge pipe.
[0039] In addition to using a two-position three-way solenoid valve, the water path switching mechanism 400 can also use a two-position two-way solenoid valve. The two-position two-way solenoid valve is connected at the connection between the second water outlet 202 and the water outlet pipe 300, or is directly installed on the water outlet pipe 300, and a waste water discharge port is opened on the water vapor separation box 200, and the remaining water in the water vapor separation box 200 is discharged through the waste water discharge port, or a waste water discharge pipe is connected to the waste water discharge port, and the remaining water in the water vapor separation box 200 is discharged through the waste water discharge pipe.
[0040] In some parallel embodiments, the water that does not reach the target temperature can be returned to the water path of the water heating mechanism or other water paths of the water purification device again to achieve reuse, thereby avoiding waste of water resources.
[0041] In a specific embodiment, in order to achieve the reuse of water resources, as Figure 2 shown, the water heating mechanism further includes a return pipe 800. The water path switching mechanism 400 in the second water outlet state can conduct the second water outlet 202 and the return pipe 800 to return the water that does not reach the target position to the heating body 100 through the return pipe 800.
[0042] Optionally, the water path switching mechanism 400 is a two-position three-way solenoid valve, which is arranged at the connection of the second water outlet 202 of the water and vapor separation box 200, the water outlet pipe 300 and the return pipe 800. The two-position three-way solenoid valve has three valve ports, one of which is a valve inlet, and the other two are a first valve outlet and a second valve outlet. The valve inlet is used to communicate with the second water outlet 202, the first valve outlet is used to communicate with the water outlet pipe 300, and the second valve outlet is used to communicate with the return pipe 800.
[0043] The two-position three-way solenoid valve has a first state in which the valve inlet is communicated with the first valve outlet and a second state in which the valve inlet is communicated with the second valve outlet. After the water reaches the target temperature, the two-position three-way solenoid valve switches to the first state, so that the water path between the second water outlet 202 and the water outlet pipe 300 is conducted, while the water path between the second water outlet 202 and the return pipe 800 is disconnected. At this time, the water that reaches the target temperature flows through the control valve to the water outlet pipe 300 and flows out from the drain port 301 of the water outlet pipe 300; before the water reaches the target temperature, the two-position three-way solenoid valve is in the second state, so that the water path between the second water outlet 202 and the water outlet pipe 300 is disconnected, while the water path between the second water outlet 202 and the return pipe 800 is conducted. At this time, the water that does not reach the target temperature flows back to the heating body 100 through the return pipe 800 for heating. Of course, the remaining water in the water and vapor separation box 200 after the last water cut-off has been cooled for a long time, and its temperature must be lower than the target temperature. Therefore, before the next water use, the remaining water in the water and vapor separation box 200 can first flow back to the heating body 100 through the return pipe 800 for heating, and then flow out through the water outlet pipe 300 after reaching the target temperature, so as to ensure the constancy of the outlet water temperature.
[0044] In addition to using a two-position three-way solenoid valve, the water path switching mechanism 400 can also use two two-position two-way solenoid valves. At this time, two second water outlets 202 are provided on the water and vapor separation box 200. One of the second water outlets 202 is communicated with the water outlet pipe 300, and a two-position two-way solenoid valve is provided at the connection of the second water outlet 202 and the water outlet pipe 300. The other second water outlet 202 is communicated with the return pipe 800, and another two-position two-way solenoid valve is provided at the connection of the second water outlet 202 and the return pipe 800. The two two-position two-way solenoid valves are in different control states, and according to whether the water temperature reaches the target position, one of the two-position two-way solenoid valves is controlled to be in the conducting state, and the other two-position two-way solenoid valve is in the disconnected state.
[0045] In addition to the above connection methods, for the water outlet pipe 300 and the return pipe 800, one end of the water outlet pipe 300 can be connected to the second water outlet 202, one end of the return pipe 800 can be connected to the middle of the water outlet pipe 300, and the other end can be connected to the first water inlet, that is, the water outlet pipe 300 and the return pipe 800 are connected in a T shape. Alternatively, the water heating mechanism further includes a main water pipe, and the main water pipe is connected to the water outlet pipe 300 and the return pipe 800 in a Y shape.
[0046] Of course, in addition to being arranged at the second water outlet 202 of the water vapor separation box 200 and the connection part of the water outlet pipe 300 and the return pipe 800, the water path switching mechanism 400 can also be arranged at the connection part of the water outlet pipe 300 and the return pipe 800 that are connected in a T shape or a Y shape. At this time, the water path switching mechanism 400 can also be set as a two-position three-way solenoid valve.
[0047] Continue to refer to Figure 2 As shown, in some embodiments, the water heating mechanism further includes a water inlet pipe 500, and one end of the water inlet pipe 500 is connected to the first water inlet. Through the water inlet pipe 500, water to be heated can be smoothly introduced into the heating body 100. Optionally, the water inlet end of the water inlet pipe 500 is connected to the water outlet end of the water purification mechanism of the water purification device, and the water entering the water inlet pipe 500 is purified water.
[0048] In order to achieve the quick disassembly and assembly of the return pipe 800, improve the assembly efficiency and reduce the maintenance difficulty, in some embodiments, a first pipe joint 600 is provided on the water inlet pipe 500, a second pipe joint 700 is provided on the water path switching mechanism 400, and the return pipe 800 is connected between the first pipe joint 600 and the second pipe joint 700.
[0049] As Figure 4 shown, the first pipe joint 600 is a three-way pipe joint. The first pipe joint 600 includes a raw water port 610, a return water port 620, and a pipe outlet 630. The raw water port 610 is used to connect to an external water source, and the return water port 620 is connected to the return pipe 800. The water heating mechanism further includes a water pump 900. The suction pipe 910 of the water pump 900 is connected to the pipe outlet 630, and the drain pipe 920 of the water pump 900 is connected to the other end of the water inlet pipe 500. Under the driving action of the water pump 900, the water from the water source enters the first pipe joint 600 through the raw water port 610 and flows out through the pipe outlet 630, then enters the water inlet pipe 500 after passing through the water pump 900; the water flowing back from the return pipe 800 enters the first pipe joint 600 through the return water port 620 and flows out through the pipe outlet 630, then enters the water inlet pipe 500 after passing through the water pump 900.
[0050] In order to accurately obtain the temperature of the heated water, thereby determining whether the water temperature reaches the target temperature, and further achieving precise control of the water path switching mechanism 400, the water heating mechanism further includes a first temperature detection mechanism. The first temperature detection mechanism is provided on the water outlet pipe 300 and is located between the water vapor separation box 200 and the water path switching mechanism 400. Through the first temperature detection mechanism, the water temperature of the water after water vapor separation by the water vapor separation box 200 can be obtained, and the water path switching mechanism 400 is controlled according to whether the water temperature reaches the target temperature, which is beneficial to improving the constancy of the outlet water temperature. Optionally, the first temperature detection mechanism is a temperature sensor.
[0051] Certainly, in some embodiments, the water heating mechanism further includes a second temperature detection mechanism. The second temperature detection mechanism is provided between the heating body 100 and the water vapor separation box 200. Through the second temperature detection mechanism, the water temperature of the water after being heated by the heating body 100 can be obtained, and the water path switching mechanism 400 is controlled according to whether the water temperature reaches the target temperature, which is also beneficial to improving the constancy of the outlet water temperature. Optionally, the second temperature detection mechanism is a temperature sensor.
[0052] The water heating mechanism provided by the present utility model can achieve zero cold water, and there is no remaining water in the water vapor separation box 200 after the water supply stops. It should be noted that the water heating mechanism further includes a control mechanism. The control mechanism can be a centralized or distributed controller. For example, the controller can be a single separate single-chip microcomputer, or can be composed of multiple distributed single-chip microcomputers. A control program can run in the single-chip microcomputer to control the heating body 100, the water path switching mechanism 400, etc. to realize their functions.
[0053] The present utility model also provides a water purification device. The water purification device includes a water purification mechanism and a water heating mechanism. The water purification outlet of the water purification mechanism is communicated with the first water inlet of the water heating mechanism. By using the water heating mechanism, the water purification device can not only improve the constancy of the outlet water temperature, but also ensure that there is less remaining water in the water vapor separation box 200 after the water supply stops. It should be noted that the water purification mechanism is a prior art and will not be elaborated here.
[0054] Obviously, the above-mentioned embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.
Claims
1. A water heating mechanism, characterized in that, Comprising: A heating body (100), the heating body (100) having a first water inlet and a first water outlet, and water can be supplied to the heating body (100) through the first water inlet; A water-vapor separation box (200), the water-vapor separation box (200) having a second water inlet (201) and a second water outlet (202), the second water inlet (201) being in communication with the first water outlet; A water outlet pipe (300), one end of the water outlet pipe (300) being in communication with the second water outlet (202); A water path switching mechanism (400), the water path switching mechanism (400) having a first water outlet state in which water reaching a target temperature is discharged to the water outlet pipe (300), and a second water outlet state in which water not reaching the target temperature is discharged outside the water outlet pipe (300).
2. The water heating mechanism according to claim 1, characterized in that, The water path switching mechanism (400) is a two-position three-way solenoid valve, and the two-position three-way solenoid valve is provided between the water-vapor separation box (200) and the water outlet pipe (300).
3. The water heating mechanism according to claim 2, wherein, The water path switching mechanism (400) has a valve inlet, a first valve outlet and a second valve outlet, the valve inlet being in communication with the second water outlet (202), the first valve outlet being in communication with the water outlet pipe (300), and water not reaching the target temperature can be directly discharged through the second valve outlet.
4. The water heating mechanism according to claim 1, characterized in that, The water heating mechanism further includes a return pipe (800), and the water path switching mechanism (400) in the second water outlet state can conduct the second water outlet (202) and the return pipe (800) to return water not reaching the target position to the heating body (100) through the return pipe (800).
5. The water heating mechanism according to claim 4, characterized in that, The water heating mechanism further includes a water inlet pipe (500), one end of the water inlet pipe (500) being in communication with the first water inlet, and the other end of the water inlet pipe (500) being in communication with the return pipe (800).
6. The water heating mechanism according to claim 5, characterized in that, A first pipe joint (600) is provided on the water inlet pipe (500), a second pipe joint (700) is provided on the water path switching mechanism (400), and the return pipe (800) is connected between the first pipe joint (600) and the second pipe joint (700).
7. The water heating mechanism according to claim 6, wherein, The first pipe joint (600) is a three-way pipe joint, and the first pipe joint (600) includes an original water port (610), a return water port (620) and a pipe outlet (630), the original water port (610) being used for connecting to an external water source, and the return water port (620) being in communication with the return pipe (800); The water heating mechanism further includes a water pump (900), a suction pipe (910) of the water pump (900) being in communication with the pipe outlet (630), and a drain pipe (920) of the water pump (900) being in communication with the other end of the water inlet pipe (500).
8. The water heating mechanism according to claim 1, characterized in that, The water heating mechanism further includes a first temperature detection mechanism, and the first temperature detection mechanism is provided on the water outlet pipe (300) and is located between the water-vapor separation box (200) and the water path switching mechanism (400).
9. The water heating mechanism according to claim 1, characterized in that, The water heating mechanism further includes a second temperature detection mechanism, and the second temperature detection mechanism is arranged between the heating body (100) and the water vapor separation box (200).
10. A water purification device, characterized in that, It includes a water purification mechanism and the water heating mechanism according to any one of claims 1-9, and a water purification outlet of the water purification mechanism is communicated with the first water inlet.