Water dispenser

Abstract

The utility model discloses a water dispenser. The water dispenser comprises an instant heating module; the main water tank is connected to the water inlet end of the instant heating module through a first water path; the heat preservation water tank is connected to the water inlet end of the instant heating module through a second water path and connected to the water outlet end of the instant heating module through a third water path; the first water path and the second water path are communicated to the water inlet end of the instant heating module in a switchable manner, so that the main water tank or the heat preservation water tank supplies water to the instant heating module; the water outlet channel and the third water path are communicated to the water outlet end of the instant heating module in a switchable mode so that the instant heating module can supply water to the water outlet channel or the heat preservation water tank. The water dispenser provided by the utility model only needs to heat on the basis of the water temperature of the heat preservation water tank, and does not need to heat from normal temperature, so that the water outlet time can be shortened, and the water outlet flow can be improved.

Description

Technical Field

[0001] The utility model relates to the field of water heating treatment equipment, in particular to a water dispenser. Background Art

[0002] A water dispenser is a device that heats bottled purified water (or mineral water) to a convenient drinking temperature. The water dispenser mainly heats water through an instant heating module. When boiling water is needed, the existing water dispenser has problems such as low heating efficiency, long heating time, and insufficient water outlet flow. Summary of the Utility Model

[0003] An object of the utility model is to solve at least the above problems and / or defects and provide at least the advantages described hereinafter.

[0004] An object of the utility model is to provide a water dispenser that can increase the hot water flow rate, shorten the heating time and the water receiving time.

[0005] To achieve these objects and other advantages according to the utility model, there is provided a water dispenser, comprising:

[0006] An instant heating module;

[0007] A main water tank, which is connected to the water inlet end of the instant heating module through a first water path;

[0008] A heat preservation water tank, which is connected to the water inlet end of the instant heating module through a second water path and is connected to the water outlet end of the instant heating module through a third water path;

[0009] Wherein, the first water path and the second water path are switchably communicated with the water inlet end of the instant heating module, so that the main water tank or the heat preservation water tank supplies water to the instant heating module; the water outlet channel and the third water path are switchably communicated with the water outlet end of the instant heating module, so that the instant heating module supplies water to the water outlet channel or the heat preservation water tank.

[0010] Preferably, the water dispenser further comprises a control module, which is connected to the first water path, the second water path, the water outlet channel and the third water path, and is used for controlling one of the first water path and the second water path to be communicated with the water inlet end of the instant heating module, and for controlling one of the water outlet channel and the third water path to be communicated with the water outlet end of the instant heating module.

[0011] Preferably, the water dispenser further includes a first temperature sensor and a second temperature sensor. The first temperature sensor is disposed at the water inlet end of the instant heating module and is configured to generate a detection signal of the water inlet temperature of the instant heating module. The second temperature sensor is disposed at the water outlet end of the instant heating module and is configured to generate a detection signal of the water outlet temperature of the instant heating module. The control module is connected to the instant heating module, the first temperature sensor, and the second temperature sensor, and is configured to receive the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module, and control the operation of the instant heating module according to the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module.

[0012] Preferably, in the water dispenser, the insulation water tank is provided with a third temperature sensor configured to generate a detection signal of the water temperature in the insulation water tank. The control module is connected to the third temperature sensor, and is configured to receive the detection signal of the water temperature in the insulation water tank, and control the second water path to communicate with the instant heating module, and control the third water path to communicate with the water outlet end of the instant heating module according to the detection signal of the water temperature in the insulation water tank.

[0013] Preferably, in the water dispenser, the insulation water tank is provided with a low liquid level switch configured to generate a low water level detection signal of the insulation water tank and a high liquid level switch configured to generate a high water level detection signal of the insulation water tank. The control module is connected to the low liquid level switch and the high liquid level switch, and controls the first water path to communicate with the water inlet end of the instant heating module and controls the third water path to communicate with the water outlet end of the instant heating module according to the low water level detection signal, and controls the first water path to disconnect from the water inlet end of the instant heating module according to the high water level detection signal.

[0014] Preferably, in the water dispenser, the first water path and the second water path share a section of water supply path. The water supply path includes a water supply pipeline and a water pump. The water pump is connected to the water supply pipeline, and the water supply pipeline is integrated in a water path board.

[0015] Preferably, in the water dispenser, the first water path includes a first valve, and the second water path includes a second valve. The control module is connected to the first valve and the second valve, and is configured to control one of the first water path and the second water path to communicate with the water inlet end of the instant heating module.

[0016] Preferably, in the water dispenser, the water outlet channel and the third water path share a reversing valve and are switchably communicated with the water outlet end of the instant heating module through the reversing valve. The control module is connected to the reversing valve, and is configured to control one of the water outlet channel and the third water path to communicate with the water outlet end of the instant heating module.

[0017] Preferably, in the water dispenser, the reversing valve is provided with a driving motor, and the driving motor is connected to the valve core of the reversing valve to drive the valve core to swing so as to change the inner diameter of the water outlet channel.

[0018] The present utility model at least includes the following beneficial effects:

[0019] An embodiment of the present utility model provides a water dispenser, including: an instant heating module; a main water tank connected to the water inlet end of the instant heating module through a first water path; a heat preservation water tank connected to the water inlet end of the instant heating module through a second water path and connected to the water outlet end of the instant heating module through a third water path; wherein, the first water path and the second water path are switchably communicated with the water inlet end of the instant heating module so that the main water tank or the heat preservation water tank supplies water to the instant heating module; the water outlet channel and the third water path are switchably communicated with the water outlet end of the instant heating module so that the instant heating module supplies water to the water outlet channel or the heat preservation water tank. The water dispenser provided by the present utility model supplies water to the instant heating module through the first water path, heats the normal temperature water to a certain temperature, transports it to the heat preservation water tank through the third water path, the heat preservation water tank supplies water to the instant heating module through the second water path, and then the instant heating module heats the water to the required temperature. Based on this process, it only needs to heat on the basis of the water temperature in the heat preservation water tank, without starting to heat from the normal temperature, which can shorten the water outlet time and increase the water outlet flow rate.

[0020] Other advantages, objectives and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. Description of the Drawings

[0021] Figure 1 is an exploded view of the water dispenser in the embodiment of the present utility model;

[0022] Figure 2 is a water path diagram of the water dispenser in the embodiment of the present utility model;

[0023] Figure 3 is a water path diagram of the water dispenser when replenishing water to the heat preservation water tank in the embodiment of the present utility model;

[0024] Figure 4 is a water path diagram of the water dispenser when replenishing the heat preservation water tank to the high liquid level in the embodiment of the present utility model;

[0025] Figure 5 is a water path diagram of the water dispenser when circulating and maintaining the temperature of the water in the heat preservation water tank in the embodiment of the present utility model;

[0026] Figure 6 is a water path diagram of the water dispenser when discharging normal temperature water in the embodiment of the present utility model;

[0027] Figure 7 This is the water circuit diagram of the water dispenser when medium-temperature water is discharged in the embodiment of the present utility model;

[0028] Figure 8 This is the water circuit diagram of the water dispenser when boiling water is discharged in the embodiment of the present utility model;

[0029] Figure 9 This is the water circuit diagram of the water dispenser when the water in the heat preservation water tank is at a low liquid level and boiling water is discharged in the embodiment of the present utility model. Detailed implementation manners

[0030] The following further describes the present utility model in detail with reference to the accompanying drawings, so that those skilled in the art can implement it according to the description in the specification.

[0031] As Figures 1 to 2 shown, the embodiment of the present utility model provides a water dispenser, including: an instant heating module 4; a main water tank 10, which is connected to the water inlet end of the instant heating module 4 through a first water circuit 22; a heat preservation water tank 11, which is connected to the water inlet end of the instant heating module 4 through a second water circuit 21 and is connected to the water outlet end of the instant heating module 4 through a third water circuit 15; wherein, the first water circuit 22 and the second water circuit 21 are switchably communicated with the water inlet end of the instant heating module 4, so that the main water tank 10 or the heat preservation water tank 11 supplies water to the instant heating module 4; the water outlet channel 17 and the third water circuit 15 are switchably communicated with the water outlet end of the instant heating module 4, so that the instant heating module 4 supplies water to the water outlet channel 17 or the heat preservation water tank 11.

[0032] When replenishing water to the heat preservation water tank 11, the main water tank 10 is communicated with the instant heating module 4 through the first water circuit 22, the heat preservation water tank 11 is communicated with the instant heating module 4 through the third water circuit 15, the main water tank 10 supplies water to the instant heating module 4, and the instant heating module 4 heats the water to a certain temperature, and then conveys the water to the heat preservation water tank 11 through the third water circuit 15. When water needs to be discharged, the heat preservation water tank 11 is communicated with the instant heating module 4 through the second water circuit 21, the water outlet channel 17 is communicated with the water outlet end of the instant heating module 4, and after the instant heating module 4 further heats the water to the required temperature (for example, heats it to the boiling water state), it conveys the water to the water outlet nozzle through the water outlet channel 17. The present utility model adds a heat preservation water tank 11 and corresponding second water circuit 21 and third water circuit 15 in the water dispenser, so that the normal temperature water can be heated to a certain temperature in advance and stored in the heat preservation water tank 11. When discharging water, only the water temperature in the heat preservation water tank 11 needs to be heated, and there is no need to heat from normal temperature, which can shorten the water discharge time and increase the water discharge flow rate.

[0033] In a preferred embodiment, the water dispenser further includes a control module. The control module is connected to the first water path 22, the second water path 21, the water outlet channel 17, and the third water path 15, and is configured to control either the first water path 22 or the second water path 21 to communicate with the water inlet end of the instant heating module 4, and to control either the water outlet channel 17 or the third water path 15 to communicate with the water outlet end of the instant heating module 4.

[0034] In a preferred embodiment, the water dispenser further includes a first temperature sensor 18NTC2 and a second temperature sensor 16NTC3. The first temperature sensor 18 is disposed at the water inlet end of the instant heating module 4 and is configured to generate a detection signal of the water inlet temperature of the instant heating module 4. The second temperature sensor 16 is disposed at the water outlet end of the instant heating module 4 and is configured to generate a detection signal of the water outlet temperature of the instant heating module 4. The control module is connected to the instant heating module 4, the first temperature sensor 18, and the second temperature sensor 16, and is configured to receive the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module 4, and to control the operation of the instant heating module 4 according to the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module 4.

[0035] When it is necessary for the instant heating module 4 to heat the water provided by the main water tank 10 or the heat preservation water tank 11, based on the water temperature at the water inlet end of the instant heating module 4 detected by the first temperature sensor 18 and the water temperature at the water outlet end detected by the second temperature sensor 16, the control module controls the operation of the instant heating module 4 to heat the water temperature to the target temperature. For example, when high-temperature water is to be output, the control module controls the second water path 21 to communicate with the instant heating module 4. The water in the heat preservation water tank 11 is conveyed to the instant heating module 4 via the second water path 21. The first temperature sensor 18 detects the water temperature at the water inlet end of the instant heating module 4, and the second temperature sensor 16 detects the water temperature at the water outlet end of the instant heating module 4. The control module controls the instant heating module 4 to operate, and after heating the water to the target temperature, conveys the water to the water outlet nozzle via the water outlet channel 17.

[0036] In a preferred embodiment of the water dispenser, the heat preservation water tank 11 is provided with a third temperature sensor 14 configured to generate a detection signal of the water temperature in the heat preservation water tank 11. The control module is connected to the third temperature sensor 14 and is configured to receive the detection signal of the water temperature in the heat preservation water tank 11, and to control the second water path 21 to communicate with the instant heating module 4 and to control the third water path 15 to communicate with the water outlet end of the instant heating module 4 according to the detection signal of the water temperature in the heat preservation water tank 11.

[0037] A third temperature sensor 14 is provided inside the heat preservation water tank 11 to detect the water temperature inside the heat preservation water tank 11. For example, when the water temperature inside the heat preservation water tank 11 is lower than the set temperature of the heat preservation water tank 11, the second water path 21 and the third water path 15 are connected, and the heat preservation water tank 11 supplies water to the instant heating module 4. The first temperature sensor 18 detects the water temperature at the water inlet end of the instant heating module 4 again, and the second temperature sensor 16 detects the water temperature at the water outlet end of the instant heating module 4 again. According to these two water temperatures, the instant heating module 4 heats until the water temperature at the water outlet end reaches the above-mentioned set temperature. The water then circulates back to the heat preservation water tank 11 through the third water path 15 for storage.

[0038] In a preferred embodiment, in the water dispenser, the heat preservation water tank 11 is provided with a low liquid level switch 12 for generating a low water level detection signal of the heat preservation water tank 11 and a high liquid level switch 13 for generating a high water level detection signal of the heat preservation water tank 11. The control module is connected to the low liquid level switch 12 and the high liquid level switch 13, and controls the first water path 22 to be connected to the water inlet end of the instant heating module 4 and the third water path 15 to be connected to the water outlet end of the instant heating module 4 according to the low water level detection signal, and controls the first water path 22 to disconnect from the water inlet end of the instant heating module 4 according to the high water level detection signal.

[0039] When the water level in the heat preservation water tank 11 reaches the low liquid level, the low liquid level switch 12 generates a low water level detection signal, and the first water path 22 and the third water path 15 are connected. The water in the main water tank 10 is transported to the instant heating module 4 through the first water path 22. The instant heating module 4 heats the water to the set temperature of the heat preservation water tank 11 and then transports it to the heat preservation water tank 11 through the third water path 15 for storage. When the water level in the heat preservation water tank 11 reaches the high liquid level, the high liquid level switch 13 generates a high water level detection signal, and the first water path 22 is disconnected, and the main water tank 10 stops supplying water.

[0040] In a preferred embodiment, in the water dispenser, the first water path 22 and the second water path 21 share a section of water supply path. The water supply path includes a water supply pipe and water pumps 19, 20. The water pumps 19, 20 are connected to the water supply pipe, and the water supply pipe is integrated in a water path board 7.

[0041] In the existing water dispenser, the internal pipelines of the water dispenser are made of one separate pipeline after another, resulting in a complex design of the internal pipelines of the water dispenser, which are not enclosed and are prone to absorb odors from the outside. In the present utility model, the water supply pipe is integrated in a water path board 7, and the surrounding shell of the water path board 7 is used to enclose the water supply pipe, so that the water supply pipe does not come into contact with the outside. The water supply pipe can be made of a PE pipe and has the same material as the surrounding shell of the water path board 7.

[0042] The present utility model is provided with two water pumps 19, 20.

[0043] In a preferred embodiment, in the water dispenser, the first water path 22 includes a first valve 5, the second water path 21 includes a second valve 6, and the control module is connected to the first valve 5 and the second valve 6 for controlling either the first water path 22 or the second water path 21 to communicate with the water inlet end of the instant heating module 4. Here, both the first valve 5 and the second valve 6 can be direct-acting valves.

[0044] In a preferred embodiment, in the water dispenser, the water outlet channel 17 and the third water path 15 share a reversing valve 2 and are switchably connected to the water outlet end of the instant heating module 4 through the reversing valve 2. The control module is connected to the reversing valve 2 for controlling either the water outlet channel 17 or the third water path 15 to communicate with the water outlet end of the instant heating module 4.

[0045] In a preferred embodiment, in the water dispenser, the reversing valve 2 is provided with a driving motor. The driving motor is connected to the valve core of the reversing valve 2 to drive the valve core to swing so as to change the inner diameter of the water outlet channel 17.

[0046] In practical applications, when the instant heating module 4 heats normal temperature water, it is impossible to heat the normal temperature water to the boiling state of 100°C. The reason is that when the water is heated to 100°C, water vapor will be generated in the internal pipeline, affecting the safety and service life of the equipment. To avoid the occurrence of the above situation, the water is usually heated to 95°C. That is, the boiled water provided by the existing water dispenser is actually hot water that has not reached 100°C. In addition, the hot water that has not reached 100°C cannot fully kill bacteria, affecting the safety of drinking water.

[0047] When boiling water is discharged, the second water path 21 is communicated, and the water pumps 19, 20 transport the water in the heat preservation water tank 11 to the instant heating module 4. During this process, under the action of the water pumps 19, 20, the internal pressure of the water supply pipeline increases. Under the pressurization of the water pumps 19, 20 and the resistance of the water supply pipeline itself, the internal pressure of the water supply pipeline reaches 0.03 - 0.05 MPa, which can raise the boiling point of the water. In this case, when the instant heating module 4 heats the water to 100°C or above 100°C, the water is still in an unboiled state, so that no water vapor will be generated inside the water supply pipeline. Based on this, users can drink real boiled water that reaches 100°C. Considering that the water heated by the instant heating module 4 will lose heat during the process of being transported from the water outlet channel 17 to the water outlet nozzle, the second temperature sensor 16 of the instant heating module 4 is set so that the instant heating module 4 heats the water to 105°C.

[0048] The pumping pressure of the water pumps 19 and 20 will decrease as the service life increases. In addition to the water pumps 19 and 20 and the pipe diameters of the water supply pipelines, the outlet pressure will also affect the internal pressure of the water supply pipelines. When the pipe diameter of the water outlet channel 17 decreases and the outlet pressure increases, the internal pressure of the water supply pipelines will also increase. A driving motor is provided at the reversing valve 2, and the driving motor drives the valve core to swing to change the inner diameter of the water outlet channel 17, thereby maintaining the internal pressure of the water supply pipelines.

[0049] The following provides an embodiment to further illustrate the working process of the water dispenser provided by the present utility model. The water dispenser includes an instant heating module 4, a heat preservation water tank 11, a main water tank 10, a water circuit board 7, a first valve 5, a second valve 6, a reversing valve 2, a water outlet nozzle, a housing 1 and a base 8. Among them, the main water tank 10 is connected to the instant heating module 4 through the first valve 5 and the water circuit board 7. The heat preservation water tank 11 is connected to the water inlet end of the instant heating module 4 through the second valve 6 and the water circuit board 7. The heat preservation water tank 11 and the water outlet nozzle 3 are connected to the water outlet end of the instant heating module 4 through the reversing valve 2. The main water tank 10 is separately provided with a main water tank 10 cover 9. The above components are arranged in the housing 1 and the base 8.

[0050] (1) Water replenishment for the heat preservation water tank 11

[0051] Figure 3 is the water circuit diagram for replenishing water into the heat preservation water tank 11. The pipelines filled with black are the connected pipelines. The low liquid level switch 12 in the heat preservation water tank 11 generates a low liquid level detection signal. The first valve 5 (direct acting valve) opens, the first water circuit 22 is connected, and the two water pumps 19 and 20 simultaneously pump pure water in the main water tank 10, and the instant heating module 4 (instant heat pipe) heats. During the heating process, the first temperature sensor 18 and the second temperature sensor 16 detect the water temperature at the water inlet end and the water outlet end of the instant heating module 4. When the water temperature at the water outlet end reaches 70 °C, the reversing valve 2 opens, and the third water circuit 15 is connected, and the high-temperature water at 70 °C is transported into the heat preservation water tank 11.

[0052] (2) Water replenishment for the heat preservation water tank 11 to the high liquid level

[0053] Figure 4 is the water circuit diagram for replenishing water into the heat preservation water tank 11 to the high liquid level. Figure 4 In it, the first water circuit 22 and the third water circuit 15 have not been disconnected yet. The high liquid level switch 13 in the heat preservation water tank 11 generates a high liquid level detection signal. The first valve 5 closes, and the main water tank 10 stops supplying water to the instant heating module 4. The third water circuit 15 is disconnected.

[0054] (3) Circulating heat preservation for the water in the heat preservation water tank 11

[0055] Figure 5It is a water circuit diagram for water circulation and heat preservation in the heat preservation water tank 11. The pipes filled with black are connected pipes. When the third temperature sensor 14NTC1 in the heat preservation water tank 11 detects that the water temperature in the heat preservation water tank 11 has naturally dissipated to 60 °C, the control module starts the heat preservation program. Under the heat preservation program, the second valve 6 (direct-acting valve) opens, and the two water pumps 19 and 20 pump water simultaneously, that is, heat pipe heating. During the heating process, the first temperature sensor 18 and the second temperature sensor 16 detect the water temperature at the water inlet end and the water outlet end of the instant heating module 4. When the water temperature at the water outlet end reaches 70 °C, the reversing valve 2 opens, and the third water circuit 15 is opened, and it circulates continuously until the third temperature sensor 14NTC1 detects 70 °C, and the circulation stops. At this time, the water temperature in the heat preservation water tank 11 is 70 °C.

[0056] (4) Output normal temperature water

[0057] Figure 6 It is a water circuit diagram of the water dispenser when outputting normal temperature water. The pipes filled with black are connected pipes. The first valve 5 opens, and the two water pumps 19 and 20 pump water from the main water tank 10 simultaneously. The instant heating module 4 does not work. The reversing valve 2 opens the water outlet channel 17, and the water outlet nozzle outputs normal temperature water.

[0058] (5) Output medium temperature water

[0059] Figure 7 It is a water circuit diagram of the water dispenser when outputting medium temperature water. The pipes filled with black are connected pipes. The first valve 5 opens, and the two water pumps 19 and 20 pump water from the heat preservation water tank 11 simultaneously. The heat pipe heats the water to 45 °C (water less than 70 °C). The reversing valve 2 opens the water outlet channel 17, and the water outlet nozzle outputs medium temperature water.

[0060] (6) Output boiling water

[0061] Figure 8 It is a water circuit diagram of the water dispenser when outputting boiling water. The pipes filled with black are connected pipes. The second valve 6 opens, and the two water pumps 19 and 20 pump water from the heat preservation water tank 11 simultaneously. The heat pipe heats the water to 105 °C. The reversing valve 2 opens the water outlet channel 17. The water outlet nozzle outputs boiling water at a flow rate of more than 1 L per minute.

[0062] (7) Output boiling water when the heat preservation water tank 11 is at a low water level

[0063] Figure 9 It is a water circuit diagram of the water dispenser when the water in the heat preservation water tank 11 is at a low liquid level and boiling water is output. The pipes filled with black are connected pipes. When the 70 °C water in the heat preservation water tank 11 is used up and the heat preservation water tank 11 is at a low water level, the water channel is switched. The first valve 5 opens, and the two water pumps 19 and 20 pump water from the main water tank 10 simultaneously. The heat pipe heats the water to 105 °C. The reversing valve 22 opens the water outlet channel 17. The water outlet nozzle outputs boiling water at a flow rate of 0.4 L per minute to ensure continuous water supply.

[0064] Although the embodiments of the present utility model have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present utility model. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present utility model is not limited to specific details and the illustrated examples herein.

Claims

1. A water dispenser, characterized in that: include: Instant heating module; A main water tank connected to a water inlet of the instant heating module through a first water path; An insulated water tank, which is connected to the water inlet of the instant heating module through a second water path, and is connected to the water outlet of the instant heating module through a third water path; Among them, the first water circuit and the second water circuit can be switchably connected to the water inlet end of the instant heating module, so that the main water tank or the insulated water tank supplies water to the instant heating module; the water outlet channel and the third water circuit can be switchably connected to the water outlet end of the instant heating module, so that the instant heating module supplies water to the water outlet channel or the insulated water tank.

2. The water dispenser according to claim 1, characterized in that: It also includes a control module, which is connected to the first water circuit, the second water circuit, the water outlet channel and the third water circuit, and is used to control one of the first water circuit and the second water circuit to be connected to the water inlet end of the instant heating module, and is used to control one of the water outlet channel and the third water circuit to be connected to the water outlet end of the instant heating module.

3. The water dispenser according to claim 2, characterized in that: It also includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged at the water inlet end of the instant heating module to generate a detection signal of the water inlet temperature of the instant heating module. The second temperature sensor is arranged at the water outlet end of the instant heating module to generate a detection signal of the water outlet temperature of the instant heating module. The control module is connected to the instant heating module, the first temperature sensor and the second temperature sensor, and is used to receive the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module, and control the operation of the instant heating module according to the detection signals of the water inlet temperature and the water outlet temperature of the instant heating module.

4. The water dispenser according to claim 3, characterized in that: The insulated water tank is provided with a third temperature sensor for generating a detection signal of the water temperature in the insulated water tank. The control module is connected to the third temperature sensor for receiving the detection signal of the water temperature in the insulated water tank, and controls the second water path to be connected to the instant heating module according to the detection signal of the water temperature in the insulated water tank, and controls the third water path to be connected to the water outlet of the instant heating module.

5. The water dispenser according to claim 4, characterized in that: The insulated water tank is provided with a low liquid level switch for generating a low water level detection signal of the insulated water tank and a high liquid level switch for generating a high water level detection signal of the insulated water tank. The control module is connected to the low liquid level switch and the high liquid level switch. According to the low water level detection signal, the first water path is controlled to be connected to the water inlet end of the instant heating module and the third water path is controlled to be connected to the water outlet end of the instant heating module. According to the high liquid level detection signal, the first water path is controlled to be disconnected from the water inlet end of the instant heating module.

6. The water dispenser according to claim 1, characterized in that: The first waterway and the second waterway share a water supply waterway, the water supply waterway includes a water supply pipeline and a water pump, the water pump is connected to the water supply pipeline, and the water supply pipeline is integrated in a waterway plate.

7. The water dispenser according to claim 2, characterized in that: The first water circuit includes a first valve, the second water circuit includes a second valve, and the control module is connected to the first valve and the second valve, and is used to control one of the first water circuit and the second water circuit to be connected to the water inlet end of the instant heating module.

8. The water dispenser according to claim 2, characterized in that: The water outlet channel and the third water path share a reversing valve, which can be switchably connected to the water outlet end of the instant heating module through the reversing valve. The control module is connected to the reversing valve, and is used to control one of the water outlet channel and the third water path to be connected to the water outlet end of the instant heating module.

9. The water dispenser according to claim 8, characterized in that: The reversing valve is provided with a driving motor, and the driving motor is connected to the valve core of the reversing valve, and drives the valve core to swing so as to change the inner diameter of the water outlet channel.

Images