Water supply device and pipeline machine

Abstract

The invention provides a water supply device and a pipeline machine, the water supply device is provided with a main water inlet and a main water outlet, the water supply device further comprises a cold container, a hot water tank, a heat exchange water tank and a controller, the cold container comprises a cold water cavity and a refrigeration assembly, the refrigeration assembly comprises a cold end and a hot end, and the cold end is used for refrigerating water in the cold water cavity. A water inlet of the hot water tank is connected to the main water inlet, a water outlet of the hot water tank is connected to the main water outlet through a hot water pipeline, and a heating body is arranged on the hot water pipeline; a water inlet of the heat exchange water tank is connected to a water outlet of the hot water tank through a first circulation pipeline, a water outlet of the heat exchange water tank is connected to a water inlet of the hot water tank, a heat exchange pump is arranged on the first circulation pipeline, and water stored in the heat exchange water tank is used for dissipating heat of the hot end of the refrigeration assembly. The controller controls the heat exchange pump to start when the water temperature in the heat exchange water tank is higher than a first temperature range. Waste heat generated by refrigeration is used for preheating the hot water tank, so that the energy utilization rate can be increased.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a water supply device and a pipeline machine. Background Art

[0002] As time goes by, people's demands for drinking water are becoming increasingly demanding, and they are generally no longer satisfied with just room temperature or hot water. Water supply equipment such as water purifiers and pipeline water dispensers can provide users with water at room temperature, cold water, and hot water, and have become widely accepted and purchased. Pipeline water dispensers on the market include wall-mounted and tabletop models. Some pipeline water dispensers have integrated water purification components to purify the water source, while others are connected to water purifiers and other equipment to obtain purified water.

[0003] For water supply equipment capable of providing cold water, a refrigeration component is provided inside the equipment. The refrigeration component needs to dissipate heat during the refrigeration process, so existing water supply equipment is usually provided with a high-power fan to provide sufficient air for heat dissipation.

[0004] For these water supply devices, poor air circulation causes heat generated by the cooling components to accumulate inside the device, affecting not only its performance but also its service life. Furthermore, due to power limitations, the flow rate of hot water at higher temperatures is limited, resulting in a poor user experience. Summary of the Invention

[0005] In order to at least partially solve the problems existing in the prior art, some embodiments of the present invention provide a water supply device, having a total water inlet and a total water outlet, including: a cold tank, the cold tank including a cold water chamber and a refrigeration assembly, the refrigeration assembly including a cold end and a hot end, the cold end being used to cool the water in the cold water chamber, the water inlet of the cold water chamber being connected to the total water inlet through a cold tank water supply pipe, and the water outlet of the cold water chamber being connected to the total water outlet; a hot water tank, the water inlet of the hot water tank being connected to the total water inlet through a hot water supply pipe, the water outlet of the hot water tank being connected to the total water outlet through a hot water pipe, and a heating body being provided on the hot water pipe; a heat exchange water tank, the water inlet of the heat exchange water tank being connected to the water outlet of the hot water tank through a first circulation pipe, the water outlet of the heat exchange water tank being connected to the water inlet of the hot water tank through a second circulation pipe, and a heat exchange pump being provided on the first circulation pipe, wherein the water stored in the heat exchange water tank is used to dissipate heat to the hot end of the refrigeration assembly; and a controller, the controller being used to control the start of the heat exchange pump when the water temperature in the heat exchange water tank is higher than a first temperature range. As a result, the water supply device can utilize the heat exchanger tank for water cooling and heat dissipation, thereby improving the cooling efficiency of the refrigeration component. When the water temperature in the heat exchanger tank is relatively low, the heat exchange pump can be disabled, reducing noise generated by the water supply component. When the water temperature in the heat exchanger tank is higher, the heat exchange pump can pump the cooler water from the hot water tank to the heat exchanger tank, and then transfer the warmer water from the heat exchanger tank to the hot water tank, raising the water temperature in the hot water tank. This allows for a greater flow rate of hot water provided to the user after secondary heating by the heating element. Using waste heat generated by refrigeration to preheat the hot water tank can also improve energy efficiency.

[0006] For example, the water supply device also includes a heat exchange temperature sensor, which is mounted on the water exchange tank. The controller determines the water temperature within the water exchange tank based on the sensor's detection results. This allows the controller to directly determine the water temperature within the water exchange tank and determine whether to activate the heat exchange pump to replace the water within the water exchange tank, simplifying the control logic.

[0007] For example, the controller is further configured to determine the water temperature in the water exchange water tank according to the cooling time of the refrigeration component. This eliminates the need for multiple sensors and reduces costs.

[0008] For example, the water supply device also includes a cold water temperature sensor for detecting the water temperature within the cold water chamber. The controller is further configured to determine the water temperature within the heat exchange tank based on the rate of decrease in the cold water chamber's water temperature. By determining whether the rate of decrease in the cold water chamber's water temperature falls below a preset threshold, the controller can determine whether the water temperature in the heat exchange tank is too high, affecting the operation of the refrigeration component, and whether it is necessary to activate the heat exchange pump to replace the water in the heat exchange tank. This eliminates the need for additional sensors, reducing hardware costs.

[0009] For example, the controller is configured to shut down the heat exchange pump when the water temperature in the heat exchange water tank falls below a first temperature range. The cooler water in the heat exchange water tank is sufficient to maintain the cooling requirements of the refrigeration components for a period of time. Shutting down the heat exchange pump reduces noise from the water supply device and saves energy.

[0010] Exemplarily, the water supply device further includes: a hot water temperature sensor for detecting the water temperature within the hot water tank; a drain outlet connected to the outside; and a valve assembly, the valve assembly including a first valve outlet, a second valve outlet, and a third valve outlet, wherein the first valve outlet is connected to the outlet of the first circulation pipeline, the second valve outlet is connected to the water inlet of the hot water exchange tank, such that the water inlet of the hot water exchange tank is connected to the first circulation pipeline via the valve assembly, and the third valve outlet is connected to the drain outlet. The valve assembly has a first position connecting the first valve outlet to the second valve outlet, and a second position connecting the first valve outlet to the third valve outlet. When the water temperature within the hot water tank exceeds a second temperature range, the controller controls the valve assembly to switch from the first position to the second position and activate the heat exchange pump. This allows the refrigeration assembly to continue refrigerating, and prevents the water temperature of the refrigeration tank from failing to reach the preset cold water temperature due to excessively high hot end temperature. In some embodiments, the valve assembly can simultaneously discharge water from the hot water exchange tank and the hot water tank through the drain outlet.

[0011] For example, the second temperature range is higher than the first temperature range. Therefore, when the water temperature in the heat exchange water tank is higher than the first temperature range, it is more reasonable to preferentially use the heat exchange pump to replace the water in the hot water tank with the higher temperature water in the heat exchange water tank. This can also increase the water temperature in the preheated water tank to a certain extent, thereby providing a larger flow of hot water when the user uses hot water, while reducing energy consumption.

[0012] For example, the controller is configured to control the valve assembly to switch from the second position to the first position when the water temperature in the hot water tank falls below a second temperature range. This prevents the hot water in the hot water tank from being completely replaced with lower temperature purified water, thereby preventing the preheating function of the water supply device from being ineffective.

[0013] Exemplarily, the valve assembly further includes a third position for connecting the second valve water port to the third valve water port. The controller is configured to control the valve assembly to the third position in response to a user drain operation. After extended use, the user can drain the hot water tank and the heat exchange water tank and flush them with clean water to ensure the hygiene of the water supply device.

[0014] For example, the water inlet of the heat exchange water tank is located at the bottom of the heat exchange water tank, and the water outlet is located at the top of the heat exchange water tank. This ensures that after sufficient cooling water enters the heat exchange water tank, the heat exchange water tank is completely filled without accumulating bubbles. When the heat exchange pump is turned on, the higher-temperature cooling water in the upper portion of the heat exchange water tank is squeezed out of the heat exchange water tank, allowing this higher-temperature cooling water to enter the hot water tank.

[0015] Exemplarily, the hot end of the refrigeration assembly includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are at least partially located inside the heat exchange water tank. In short, providing a plurality of heat dissipation fins can increase the heat dissipation power of the hot end of the refrigeration assembly and improve the refrigeration performance of the refrigeration assembly.

[0016] Exemplarily, the water supply device also includes: a cold water tank, which is arranged in series on the cold tank water supply pipeline; and a cold water pump, which is arranged in series on the cold tank water supply pipeline between the cold water tank and the cold tank. The controller is also used to control the cold water pump to start in response to the user's water extraction operation. The cold water tank can also temporarily store the purified water from the main water inlet, and when the cold tank is short of water, the water in the cold water tank is first used to replenish it, thereby extending the service life of the water purification component and providing a larger flow of cold water to the user. The cold water pump can pump the cold water to a height above the cold water chamber or above the liquid level of the cold water tank, which can effectively increase the water output flow rate and improve the user experience. The cold water chamber is always full of water, and there is no need to set up an additional water level detection device, and there will be no situation where the refrigeration component is dry-cooled due to lack of water in the cold water chamber. This also reduces hardware and simplifies the control logic.

[0017] Exemplarily, the water supply device further includes: a cold water control valve, through which the cold water tank water supply line is connected to the main water inlet; and a first water level detection assembly for detecting the water level in the cold water tank. The controller is further configured to control the cold water control valve to open when the water level in the cold water tank is lower than or equal to the lower cold water level limit, and to control the cold water control valve to close when the water level in the cold water tank is higher than or equal to the upper cold water level limit. This allows for automatic water replenishment of the cold water tank.

[0018] Exemplarily, the water supply device further includes a hot water control valve, through which the hot water replenishment pipeline is connected to the main water inlet; and a second water level detection assembly for detecting the water level in the hot water tank. The controller is further configured to control the hot water control valve to open when the water level in the hot water tank is lower than or equal to a lower hot water level limit, and to control the hot water control valve to close when the water level in the hot water tank is higher than or equal to an upper hot water level limit. This allows for automatic replenishment of the hot water tank.

[0019] Exemplarily, the water supply device further includes a cold water temperature sensor for detecting the water temperature within the cold water chamber. The controller is further configured to control the refrigeration assembly to operate when the water temperature within the cold water chamber is above a third temperature range, and to control the refrigeration assembly to stop operating when the water temperature within the cold water chamber is below the third temperature range. When the cold water temperature is above a desired water intake temperature, the controller may control the refrigeration assembly to operate, thereby ensuring that the cold water provided to the user meets the desired water intake temperature. When the cold water temperature is not above the desired water intake temperature, the controller may also control the refrigeration assembly to stop operating to reduce energy consumption.

[0020] For example, when the water temperature in the heat exchange water tank is higher than a first temperature range and the refrigeration component stops working, the heat exchange pump is controlled to operate for no longer than a first duration. Thus, when the refrigeration component stops working, by controlling the heat exchange pump to operate for no longer than the first duration, the heat exchange pump can be stopped promptly, thereby reducing noise and preventing unnecessary cycles.

[0021] Another aspect of the present application provides a pipeline water heater, comprising: the aforementioned water supply device, wherein the main water inlet of the water supply device is connected to the water outlet of the water purifier. Thus, the water purifier can be linked with the pipeline water heater to provide high-quality purified water to users.

[0022] This summary introduces a series of simplified concepts that will be further described in the detailed description. This summary is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0023] The advantages and features of the present invention are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0025] Figure 1 A waterway diagram of a water supply device according to an exemplary embodiment of the present invention;

[0026] Figure 2 is a waterway diagram of a water supply device according to another exemplary embodiment of the present invention;

[0027] Figure 3 is a waterway diagram of a water supply device according to another exemplary embodiment of the present invention;

[0028] Figure 4 is a waterway diagram of a water supply device according to another exemplary embodiment of the present invention;

[0029] Figure 5 FIG. 4 is a control flow chart of a water supply device according to an exemplary embodiment of the present invention.

[0030] The above drawings include the following reference numerals:

[0031] 10. Main water inlet; 20. Main water outlet; 30. Drain outlet; 100. Refrigerating tank; 110. Cold water temperature sensor; 200. Hot water tank; 210. Hot water temperature sensor; 310. Hot water supply line; 320. Hot water line; 321. Heating element; 330. First circulation line; 340. Second circulation line; 350. Refrigerating tank supply line; 351. Cold water pump; 400. Heat exchanger tank; 410. Heat exchanger temperature sensor; 500. Heat exchanger pump; 600. Valve assembly; 601. First valve outlet; 602. Second valve outlet; 603. Third valve outlet; 610. Drain solenoid valve; 620. First solenoid valve; 630. Pressure valve; 700. Cold water tank; 810. Cold water control valve; 820. Hot water control valve; 910. First water level detection assembly; 920. Second water level detection assembly. DETAILED DESCRIPTION

[0032] In the following description, a large amount of detail is provided to facilitate a thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the following description merely illustrates preferred embodiments of the present invention, and that the present invention may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well known in the art have not been described in detail.

[0033] To provide a thorough understanding of the embodiments of the present invention, a detailed description of the structure will be provided in the following description. It should be understood that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described below in detail, but in addition to these detailed descriptions, the present invention may also have other embodiments.

[0034] The embodiment of the present invention provides a water supply device. The following will describe the water supply device according to the embodiment of the present invention in detail with reference to the accompanying drawings. Figure 1 As shown, the water supply device has a main water inlet 10 and a main water outlet 20. The main water inlet 10 can be connected to a water source, such as the water outlet of a filtration device. The main water outlet 20 can provide users with products such as hot water, cold water, and room temperature water. Optionally, the main water outlet 20 can be connected to a faucet or a water spout. Optionally, the main water outlet 20 can have multiple openings separated from each other, so that water that has undergone different treatments, such as refrigerated water or heated water, can be provided to the user through different openings without interfering with each other.

[0035] The water supply device may also include a cooling liner 100, which may include a cold water chamber (not shown) disposed therein. Optionally, the cold water chamber may be substantially the same shape as the main body of the cooling liner 100, i.e., a cube. Optionally, a tortuous pipe may be formed within the cooling liner 100, with the cold water chamber formed by the inner cavity of the pipe, thereby increasing the internal surface area of ​​the cold water chamber. The cooling liner 100 may also include a refrigeration assembly, which may include a compressor-type refrigeration assembly, a semiconductor refrigeration assembly, or other existing or future refrigeration assemblies. Regardless of the type of refrigeration assembly, heat is generated during the refrigeration process, resulting in the cooling assembly including a cold end and a hot end. The cold end of the refrigeration assembly can exchange heat with the cold water chamber to cool the water within the cold water chamber. The water inlet of the cold water chamber may be connected to the main water inlet 10 via the cooling liner water supply line 350. Furthermore, the water outlet of the cold water chamber may be connected to the main water outlet 20 via a cold water pipe. Thus, the water supply device can provide users with cold water that is below room temperature.

[0036] The water supply device may also include a hot water tank 200, the water inlet of the hot water tank 200 is connected to the main water inlet 10 via a hot water supply line 310, and the water outlet of the hot water tank 200 is connected to the main water outlet 20 via a hot water line 320, and a heating element 321 is provided on the hot water line 320. The heating element 321 may include, but is not limited to, a thick film heating element 321, a hot tank, an electromagnetic heater, and other existing or future heating elements. For the embodiment in which the main water inlet 10 is connected to the water purification component, the hot water tank 200 can store a large amount of clean water produced by the water purification component in the hot water tank 200. When the user takes hot water, the hot water is heated by the hot water tank 200 through the heating element 321 and provided to the user. In this way, the water purification component does not need to work every time the user takes hot water, which can reduce the number of starts and stops of the water purification component and extend the service life of the water purification component. In some embodiments, the water purification component has a small-flux filter element (daily water production is less than 400 gallons). In this case, the hot water tank 200 can also temporarily store the purified water produced by the water purification assembly when the user does not use water, thereby allowing a large flow of hot water to be provided to the user.

[0037] The water supply device may also include a heat exchange tank 400. The water inlet of the heat exchange tank 400 is connected to the water outlet of the hot water tank 200 via a first circulation line 330. The water outlet of the heat exchange tank 400 is connected to the water inlet of the hot water tank 200 via a second circulation line 340. A heat exchange pump 500 is provided on the first circulation line 330. The water stored in the heat exchange tank 400 is used to dissipate heat from the hot end of the refrigeration component. For any existing refrigeration component, a large temperature difference between the hot and cold ends reduces cooling efficiency. For example, in semiconductor refrigeration, when the temperature difference between the hot and cold ends reaches 50 degrees Celsius or more, the cooling effect is severely reduced, causing the water temperature in the refrigeration tank 100 to almost no longer decrease, making it difficult for the water supply device to provide cold water at the required temperature. Therefore, the hot end of the refrigeration component needs to be cooled. The hot end of the refrigeration component can exchange heat with the heat exchange tank 400. The heat exchange tank 400 transfers heat from the hot end to the cooling water, dissipating heat from the hot end of the refrigeration component. Optionally, the heat exchange water tank 400 can be formed of a thermally conductive material, such as metal. Alternatively, if the refrigeration assembly includes a compressor and a refrigerant circulation pipeline, the heat release end of the refrigerant circulation pipeline can extend into the interior of the heat exchange water tank 400 to facilitate heat exchange. Alternatively, the refrigeration assembly includes a heat sink, a portion of which is embedded within the heat exchange water tank 400, contacting the cooling water within the heat exchange water tank 400 to achieve heat exchange.

[0038] The water supply device may also include a controller for controlling the start-up of the heat exchange pump 500 when the water temperature in the hot water tank 400 is higher than a first temperature range. Taking a semiconductor refrigeration element as an example, its refrigeration efficiency is generally between 50% and 60%. In other words, when both the target medium for refrigeration and the medium for heat dissipation are water, if the temperature of the same volume of water is reduced by 5 degrees, the temperature of the cooling water for heat dissipation will increase by much more than 5 degrees. The volume of the hot water tank 400 is usually not larger than the volume of the cold bladder 100. Therefore, when the refrigeration component is working, the water temperature in the hot water tank 400 may quickly rise to a level where the refrigeration component can no longer continue to cool efficiently. The heat exchange pump 500 can pump the lower-temperature water in the hot water tank 200 into the hot water tank 400, replacing the higher-temperature water and simultaneously raising the water temperature in the hot water tank 200. As a result, the hot water tank 200 not only stores water to be heated by the heating element 321, but also provides cooler cooling water to the heat exchange water tank 400 for a period of time, while the hot water tank 200 itself uses the water in the heat exchange water tank 400 to preheat the water to be heated. As described above, the water in the hot water tank 200 can be reheated by the heating element 321 before being provided to the user. This not only allows the refrigeration unit to continue to cool efficiently, but also preheats the hot water tank 200, increasing the flow rate of hot water outflow.

[0039] The controller can determine whether the water temperature in the hot water exchange tank 400 is higher than the first temperature range in various ways. For example, the time it takes for the water temperature in the hot water exchange tank 400 to rise from room temperature to above the first temperature range can be determined. Alternatively, the operating time of the refrigeration component can be used to roughly infer whether the water temperature in the hot water exchange tank 400 is higher than the first temperature range. Optionally, a temperature sensor can be provided in the cold water chamber, and based on the rate of decrease in the cold water temperature, it can be roughly inferred whether the water temperature in the hot water exchange tank 400 is higher than the first temperature range. Optionally, a temperature sensor can be provided in the hot water exchange tank 400 to directly determine whether the water temperature in the hot water exchange tank 400 is higher than the first temperature range. The controller can be constructed using electronic components such as timers, comparators, registers, and digital logic circuits, or can be implemented using processor chips such as single-chip microcomputers, microprocessors, programmable logic controllers (PLCs), digital signal processors (DSPs), field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), and application-specific integrated circuits (ASICs), as well as their peripheral circuits.

[0040] Thus, the water supply device can utilize the heat exchanger tank 400 to achieve water cooling and heat dissipation, thereby improving the refrigeration efficiency of the refrigeration component. When the water temperature in the heat exchanger tank 400 is relatively low, the heat exchange pump 500 can be turned off, thereby reducing the noise generated by the water supply component. When the water temperature in the heat exchanger tank 400 is high, the heat exchange pump 500 can be used to pump the lower-temperature water in the hot water tank 200 to the heat exchanger tank 400, and the higher-temperature water in the heat exchanger tank 400 to the hot water tank 200, thereby raising the water temperature in the hot water tank 200. This allows the hot water provided to the user after secondary heating by the heating element 321 to have a greater flow rate. Using the waste heat generated by refrigeration to preheat the hot water tank 200 can also improve energy utilization.

[0041] In one specific embodiment, at a standard room temperature of 25 degrees Celsius, compared to commercially available instant water supply equipment (such as water purifiers or pipeline water heaters), the hot water tank 200 can continuously exchange hot water with the hot water in the heat exchange water tank 400 through the heat exchange pump 500, allowing the stored water temperature to reach a maximum of 50 degrees Celsius, a 25% increase compared to room temperature. When the user requires hot water at a higher temperature, such as a desired water temperature of 95 degrees Celsius, the water supply assembly of this embodiment of the application can also use a 2100W heating element 321 to increase the flow rate from 428ml / min to 666ml / min, a maximum performance improvement of 55%.

[0042] For example, the controller is configured to shut down the heat exchange pump 500 when the water temperature in the heat exchange water tank 400 falls below a first temperature range. The cooler water in the heat exchange water tank 400 is sufficient to maintain the cooling requirements of the refrigeration components for a period of time. Shutting down the heat exchange pump 500 reduces noise from the water supply device and saves energy.

[0043] Exemplarily, the water supply device may further include a heat exchange temperature sensor 410, which is disposed on the water exchange tank 400. The water temperature within the water exchange tank 400 is determined by the controller based on the detection results of the heat exchange temperature sensor 410. The heat exchange temperature sensor 410 may include a thermocouple, a semiconductor thermal resistor, or the like, and may extend into the interior of the water exchange tank 400 or be attached to the heat-conducting surface of the water exchange tank 400. Optionally, the heat exchange temperature sensor 410 may be disposed on the other side of the water exchange tank 400 that is opposite to the side that contacts the hot end of the refrigeration component. In this way, the water temperature within the water exchange tank 400 can be directly obtained, and it can be determined whether it is necessary to start the heat exchange pump 500 to replace the water within the water exchange tank 400. The control logic is simple.

[0044] For example, the controller can also be used to determine the water temperature in the hot water exchange tank 400 based on the cooling time of the refrigeration assembly. Alternatively, the controller can obtain the water temperature of the hot water tank 200 based on a sensor installed elsewhere (e.g., a sensor in the hot water tank 200), and determine the operating time of the refrigeration assembly when the water temperature in the hot water tank 200 is raised to above the first temperature range based on the water temperature in the hot water tank 200. This eliminates the need for multiple sensors, reducing costs.

[0045] Exemplarily, the water supply device also includes a cold water temperature sensor 110, which is used to detect the water temperature in the cold water chamber. The cold water temperature sensor 110 can include any existing or future temperature sensor and be installed inside or outside the cold water chamber accordingly. The controller can control the refrigeration component to work or stop working based on the cold water temperature in the cold water chamber. Specifically, when the cold water temperature is higher than the expected water intake temperature, the controller can control the refrigeration component to work, so as to ensure that the cold water provided to the user can meet the expected water intake temperature as much as possible. When the cold water temperature is not higher than the expected water intake temperature, the controller can also control the refrigeration component to stop working to reduce energy consumption.

[0046] The controller is also configured to determine the water temperature within the hot water exchange tank 400 based on the rate of decrease in the water temperature in the cold water chamber. As described above, when the water temperature in the hot water exchange tank 400 is too high and cannot provide adequate heat dissipation, the refrigeration component's operating efficiency decreases, and the rate of decrease in the water temperature in the cold water chamber slows. Specifically, whether the water temperature within the hot water exchange tank 400 is too high can be determined by whether the rate of decrease in the water temperature in the cold water chamber is below a preset threshold. The preset threshold may be the rate of decrease in the water temperature in the cold water chamber when the temperature of the hot water exchange tank 400 meets the required level. Specifically, when the temperature of the hot water exchange tank 400 remains unchanged, the lower the water temperature in the cold water chamber, the lower the rate of decrease in the water temperature in the cold water chamber. Therefore, even under normal operating conditions, the rate of decrease in the water temperature in the cold water chamber is not constant. Alternatively, the preset threshold may be the minimum value of the rate of decrease in the water temperature under normal operating conditions. Alternatively, the preset threshold may be functionally related to the current water temperature in the cold water chamber, with the lower the current water temperature in the cold water chamber, the lower the preset threshold. In short, the controller can determine whether the water temperature in the hot water tank 400 is too high and affects the operation of the refrigeration component by checking whether the rate of decrease in the water temperature in the cold water chamber is lower than a preset threshold, and whether it is necessary to start the heat exchange pump 500 to replace the water in the hot water tank 400. This also eliminates the need for additional sensors, reducing hardware costs.

[0047] Exemplarily, the water supply device includes a hot water temperature sensor 210 for detecting the water temperature in the hot water tank 200. The water supply device also includes a drain outlet 30 connected to the outside, and a valve assembly 600, the valve assembly 600 including a first valve water outlet 601, a second valve water outlet 602 and a third valve water outlet 603. Among them, the first valve water outlet 601 is connected to the water outlet of the first circulation pipeline 330, the second valve water outlet 602 is connected to the water inlet of the heat exchange water tank 400, so that the water inlet of the heat exchange water tank 400 is connected to the first circulation pipeline 330 through the valve assembly 600, and the third valve water outlet 603 is connected to the drain outlet 30. The valve assembly 600 has a first station for connecting the first valve water outlet 601 to the second valve water outlet 602, and a second station for connecting the first valve water outlet 601 to the third valve water outlet 603. As Figure 1 In the embodiment shown, the valve assembly 600 may include a valve housing and a valve core, wherein the valve core is movable within the valve housing, so that the first valve water port 601 is selectively connected to the second valve water port 602 and the third valve water port 603. Optionally, when the valve assembly 600 is in the second position, the first valve water port 601 may also be simultaneously connected to the second valve water port 602 and the third valve water port 603. Figure 2 In the embodiment shown, the valve assembly 600 may only include a drain solenoid valve 610 disposed between the drain port 30 and the first circulation pipeline 330. When the drain solenoid valve 610 is opened, the water in the hot water tank 400 and the hot water tank 200 can be connected to the drain port 30 through the drain solenoid valve 610. Figure 3In the embodiment shown, the valve assembly 600 may include a first solenoid valve 620 and a drain solenoid valve 610. When the valve assembly 600 is in the first position, the first solenoid valve 620 may be opened and the drain solenoid valve 610 may be closed. When the valve assembly 600 is in the second position, the drain solenoid valve 610 may be opened and the first solenoid valve 620 may be closed. Figure 4 In the illustrated embodiment, the valve assembly 600 may include a pressure valve 630 that opens under pressure and a drain solenoid valve 610. When the valve assembly 600 is in the first position, the drain solenoid valve 610 is closed, and the pressure valve 630 opens under pressure from the heat exchange pump 500, thereby connecting the first valve water port 601 and the second valve water port 602. When the valve assembly 600 is in the second position, water from the heat exchange pump 500 is discharged to the drain port 30 through the drain solenoid valve 610. In summary, the valve assembly 600 may take various forms, allowing at least water from the hot water tank 200 to be discharged to the drain port 30 through the valve assembly 600 in the second position. The controller is configured to control the valve assembly 600 to switch from the first position to the second position and to activate the heat exchange pump 500 when the water temperature in the hot water tank 200 exceeds a second temperature range.

[0048] After the water in the heat exchange water tank 400 is transferred to the hot water tank 200 by the heat exchange pump 500, the water temperature in the hot water tank 200 gradually increases. Eventually, the water temperature in the hot water tank 200 rises to a temperature close to the maximum temperature of the heat exchange water tank 400, at which point the refrigeration assembly's heat dissipation is severely affected, rendering it virtually unable to provide cooling. The second temperature range can be determined by the maximum temperature of the heat exchange water tank 400. By switching the control valve assembly 600 to the second position, some of the hot water in the hot water tank 200 can be drained through the drain 30, and the water temperature in the hot water tank 200 can be lowered by replenishing cooler clean water into the hot water tank 200. This allows the refrigeration assembly to continue cooling, preventing the water temperature in the refrigeration tank 100 from failing to reach the preset cold water temperature due to excessively high hot end temperatures. In some embodiments, the valve assembly 600 can simultaneously drain the water from both the heat exchange water tank 400 and the hot water tank 200 through the drain 30.

[0049] For example, the second temperature range is higher than the first temperature range. Since the hot water tank 200 is not equipped with a heating component and the water source of the hot water tank 400 is derived from the hot water tank 200, the water temperature of the hot water tank 400 is always higher than that of the hot water tank 200. Therefore, when the water temperature of the hot water tank 400 exceeds the first temperature range, it is more reasonable to preferentially replace the water in the hot water tank 200 with the higher-temperature water in the hot water tank 400 via the heat exchange pump 500. This can also raise the water temperature of the preheated water tank to a certain extent, thereby providing a larger flow of hot water when the user draws hot water, while also reducing energy consumption. After the user draws hot water, the hot water tank 200 is typically replenished with cooler purified water, further lowering the temperature of the hot water tank 200. In short, the hot water tank 200 can continuously provide cooler water to the hot water tank 400 until the temperature of the hot water tank 200 reaches the second temperature range, at which point some of the hot water is discharged. Alternatively, the first temperature range may be 30°C to 35°C, i.e., the upper limit is 35°C and the lower limit is 30°C. Alternatively, the second temperature range may be 40°C to 50°C, i.e., the upper limit is 50°C and the lower limit is 40°C. Alternatively, the second temperature range may be 40°C to 45°C, i.e., the upper limit is 45°C and the lower limit is 40°C. Not shown, the second temperature range may also be other temperature ranges.

[0050] Exemplarily, the controller is configured to switch the control valve assembly 600 from the second position to the first position when the water temperature in the hot water tank 200 falls below the second temperature range, preventing the water in the hot water tank 200 from being drained through the drain 30. This prevents the hot water in the hot water tank 200 from being completely replaced with lower, room-temperature purified water, thereby rendering the preheating function of the water supply device ineffective. Thereafter, when the refrigeration assembly is operating, the heat exchange pump 500 remains on. The refrigeration assembly can raise the water temperature in the hot water tank 400 and the hot water tank 200 from the lower limit of the second temperature range to the upper limit of the second temperature range, repeating the draining and heating process. In this case, due to the higher hot end temperature, the refrigeration assembly's cooling effect is relatively poor. However, since some heat is pumped from the cold water chamber to the hot water tank 400 and the hot water tank 200, and the heat generated by the refrigeration assembly is largely absorbed by the hot water tank 400, the thermal efficiency is still higher than that of purely resistive heating elements such as the heater 321, thereby achieving energy savings.

[0051] Exemplarily, the valve assembly 600 further has a third position that connects the second valve water port 602 with the third valve water port 603. The controller is configured to control the valve assembly 600 to the third position in response to a user drain operation. After extended use, the user can drain the hot water tank 200 and the hot water exchange tank 400 and flush them with clean water to ensure the hygiene of the water supply device.

[0052] like Figure 5As shown, in a specific embodiment, the first temperature range is 30-35°C, and the second temperature range is 40-50°C. The refrigeration component begins refrigeration when the water temperature in the cold water chamber is greater than or equal to 12°C and stops refrigeration when it is less than or equal to 7°C. At the initial start of refrigeration, the water temperatures in the hot water tank 200 and the heat exchange water tank 400 are both room temperature (e.g., 25°C). As the refrigeration component operates, the water temperature in the heat exchange water tank 400 rises above the first temperature range, reaching 35°C or above. At this point, the heat exchange pump 500 is turned on, pumping room temperature water from the hot water tank 200 to the heat exchange water tank 400 to replace the hot water therein. As the temperature of the hot water tank 200 rises, the water temperature in the heat exchange water tank 400 falls below the first temperature range, i.e., less than or equal to 30°C. The heat exchange pump 500 is then turned off, and the water temperature in the heat exchange water tank 400 again rises above the first temperature range due to heating at the hot end of the refrigeration component. The heat exchange pump 500 is then turned on again, and the cycle continues. When the water temperature in hot water tank 200 is above the lower limit of the first temperature range, that is, above 30 degrees Celsius, the water added to heat exchange tank 400 will not cause the water temperature in heat exchange tank 400 to drop below the first temperature range, so heat exchange pump 500 will continue to operate. At this time, the refrigeration component uses water from both hot water tank 200 and heat exchange tank 400 for water cooling and heat dissipation. When the water temperature in hot water tank 200 rises above the second temperature range, that is, greater than or equal to 50 degrees Celsius, valve assembly 600 is switched from the first position to the second position, draining some of the hot water. Normal temperature water added to hot water tank 200 can lower the water temperature in hot water tank 200. When the water temperature in hot water tank 200 is below the lower limit of the second temperature range, that is, less than or equal to 40 degrees Celsius, valve assembly 600 can be switched back to the first position. At this point, heat exchange pump 500 continues to circulate. Afterwards, the heat generated by the refrigeration component causes the water temperature in the hot water tank 200 and the heat exchange water tank 400 to oscillate repeatedly between 40°C and 50°C. When the water temperature reaches 50°C, the hot water is drained to cool it down. After cooling to 40°C, the temperature is gradually raised to 50°C until the refrigeration component stops working. The above process ignores situations such as the user's use of hot water, which causes the water temperature in the hot water tank 200 to drop. In short, if the user frequently and only uses cold water, causing the refrigeration component to operate continuously, the water supply component can use the above solution to ensure that the refrigeration component can always effectively cool.

[0053] Of course, the temperatures in the above scheme are only exemplary. In different water supply component schemes, the upper and lower limits of the first temperature range and the upper and lower limits of the second temperature range can be adaptively adjusted according to actual products, and are not listed here one by one.

[0054] For example, the water inlet of the heat exchange water tank 400 is located at the bottom of the heat exchange water tank 400, and the water outlet of the heat exchange water tank 400 is located at the top of the heat exchange water tank 400. This ensures that after sufficient cooling water enters the heat exchange water tank 400, the heat exchange water tank 400 is completely filled without accumulating bubbles. When the heat exchange pump 500 is turned on, the higher-temperature cooling water in the upper portion of the heat exchange water tank 400 is squeezed out of the heat exchange water tank 400, allowing this higher-temperature cooling water to enter the hot water tank 200.

[0055] For example, the hot end of the refrigeration assembly may include multiple heat sink fins, which are at least partially located within the heat exchange water tank 400. In some exemplary embodiments, the refrigeration assembly includes a compressor and a refrigerant circulation line, with the heat release section of the refrigerant circulation line located within the heat exchange water tank 400, and the heat sink fins are provided on the line. In this case, the heat sink fins may be located entirely within the heat exchange water tank 400, or only partially within the heat exchange water tank 400. Thus, the heat sink fins increase the contact area between the hot end of the refrigeration assembly and the cooling water in the heat exchange water tank 400, improving heat dissipation efficiency. In other embodiments, the heat release section of the refrigerant circulation line may be located outside the heat exchange water tank 400, with only the heat sink fins extending into the heat exchange water tank 400. This allows for a more regular shape of the heat sink fins, facilitating sealing between the heat exchange water tank 400 and the fins. In some embodiments, the refrigeration assembly includes a semiconductor cooler. Since semiconductor coolers are typically sheet-shaped, they have flat heating and cooling ends. The hot end of the refrigeration assembly can be equipped with a heat sink. This heat sink can include a base plate attached to the flat surface of the semiconductor cooler's hot end and multiple fins extending from the base plate into the heat absorption tank. This increases the contact area between the heat sink and the water, enhancing the heat dissipation effect. Optionally, the heat sink can also include a heat pipe or other heat-conducting element. In short, the installation of multiple heat sinks can increase the heat dissipation efficiency of the hot end of the refrigeration assembly, thereby improving the refrigeration performance of the refrigeration assembly.

[0056] Exemplarily, the water supply device may further include a cold water temperature sensor 110, which is used to detect the water temperature in the cold water chamber. The controller is also used to control the refrigeration component to operate when the water temperature in the cold water chamber is higher than a third temperature range, and to control the refrigeration component to stop working when the water temperature in the cold water chamber is lower than the third temperature range. In a specific embodiment, the third temperature range can be 7 degrees to 12 degrees, that is, the upper limit is 12 degrees and the lower limit is 7 degrees. When the water temperature in the cold water chamber is higher than 12 degrees, the refrigeration component starts to refrigerate, and stops working when the water temperature in the cold water chamber is lower than or equal to 7 degrees. In this way, cold water of the desired temperature can be provided to the user.

[0057] For example, when the water temperature in the hot water tank 400 exceeds the first temperature range and the refrigeration component stops operating, the heat exchange pump 500 is controlled to operate for no longer than the first duration. It will be appreciated that when the refrigeration component stops operating, the water temperature in the hot water tank 400 will no longer rise. As described above, in some embodiments of the water supply device, the heat exchange pump 500 stops operating when the water temperature in the hot water tank 400 falls below the first temperature range. However, if the water temperature in the hot water tank 200 exceeds the first temperature range, since the water in the hot water tank 400 comes from the hot water tank 200, the water temperature in the hot water tank 400 will never fall below the first temperature range. Continuing to operate the heat exchange pump 500 in this situation will not further reduce the water temperature in the hot water tank 400. Specifically, when the water temperature in the hot water tank 200 does not exceed the first temperature range, the controller will control the heat exchange pump 500 to stop operating whenever the water temperature in the hot water tank 400 falls below the first temperature range, regardless of whether the refrigeration component is operating. Therefore, when the refrigeration component stops operating, the controller may control the heat exchange pump 500 to stop operating if the water temperature in the hot water tank 400 falls below the first temperature range. The time it takes for the water temperature in the hot water tank 400 to drop below the first temperature range can be less than the first duration. Furthermore, when the refrigeration component stops operating and the heat exchange pump 500 operates for the first duration, even if the water temperature in the hot water tank 400 has not dropped below the first temperature range, the controller controls the heat exchange pump 500 to shut down. Alternatively, the first duration can be 3 minutes. For the water supply device of this embodiment, this time is sufficient to completely replace the water in the hot water tank 400 with water from the hot water tank 200. Alternatively, the first duration can be appropriately set based on the capacity of the hot water tank 400 and the pumping flow rate of the heat exchange pump 500. Thus, when the refrigeration component stops operating, by controlling the heat exchange pump 500 to operate for no longer than the first duration, the heat exchange pump 500 can be stopped promptly, thereby reducing noise and preventing unnecessary cycles.

[0058] Exemplarily, the water supply device may further include a cold water tank 700 and a cold water pump 351. The cold water tank 700 is arranged in series on the cold tank water supply pipeline 350, and the cold water pump 351 is arranged in series on the cold tank water supply pipeline 350 between the cold water tank 700 and the cold tank 100. The controller is also used to control the cold water pump 351 to start in response to the user's water extraction operation. Similar to the hot water tank 200, the cold water tank 700 can also temporarily store the purified water from the main water inlet 10, and when the cold tank 100 is short of water, the water in the cold water tank 700 is first used to replenish it, thereby extending the service life of the water purification component and providing a larger flow of cold water to the user. In the embodiment shown in the figure, the cold water chamber can be connected to the outside world only through the main water outlet 20. When the cold water pump 351 pumps water into the cold water chamber, the cold water in the cold water chamber can be squeezed out from the main water outlet 20. The cold water pump 351 can include any suitable pump, such as a peristaltic pump, a diaphragm pump, or a centrifugal pump. The cold water pump 351 can pump cold water to a height above the cold water chamber or above the liquid level in the cold water tank 700, effectively increasing the water flow rate and improving the user experience. The cold water chamber is always full, eliminating the need for an additional water level detection device, and preventing dry cooling of the refrigeration assembly due to a lack of water in the cold water chamber. This also reduces hardware and simplifies control logic.

[0059] Illustratively, the water supply device may further include a cold water control valve 810, through which the cold tank water supply line 350 is connected to the main water inlet 10. The water supply device includes a first water level detection assembly 910, which is used to detect the water level in the cold water tank 700. The first water level detection assembly 910 may include, but is not limited to, existing or future water level detection elements, such as ultrasonic water level sensors, float sensors, infrared liquid level sensors, and laser liquid level sensors. The first water level detection assembly 910 may be installed inside or outside the cold water tank 700. The controller is further configured to control the cold water control valve 810 to open when the water level in the cold water tank 700 is below or equal to the lower limit of the cold water level, and to control the cold water control valve 810 to close when the water level in the cold water tank 700 is above or equal to the upper limit of the cold water level. The main water inlet 10 may be connected to a pressurized purified water source, such as a water purifier equipped with a high-pressure switch. When the cold water control valve 810 is opened, the pressure of the cold water supply line 350 is reduced, and the high pressure switch is actuated to make the water purifier produce water. Thus, the cold water tank 700 can be automatically replenished with water.

[0060] Illustratively, the water supply device may further include a hot water control valve 820, through which the hot water replenishment pipeline 310 is connected to the main water inlet 10. The water supply device may further include a second water level detection component 920, which is used to detect the water level in the hot water tank 200. The second water level detection component 920 may also include, but is not limited to, existing or future water level detection components. The controller is further configured to control the hot water control valve 820 to open when the water level in the hot water tank 200 is below or equal to the lower limit of the hot water level, and to control the hot water control valve 820 to close when the water level in the hot water tank 200 is above or equal to the upper limit of the hot water level. This enables automatic replenishment of the hot water tank 200. In some embodiments, the hot water tank 200 may also be provided with a float switch connected to the water inlet of the hot water tank 200 to prevent overflow in the event of a failure of the hot water control valve 820. The float switch's closing level is higher than the upper limit of the hot water level. Therefore, even after the hot water tank 200 is properly refilled, it remains open, allowing water from the hot water tank 400 to enter the hot water tank 200 through the float switch. This eliminates the need for an additional water inlet, simplifying the hot water tank 200's manufacturing process. Similarly, the cold water tank 700 can also be equipped with a float switch to prevent overflow.

[0061] Another aspect of the present application also provides a pipeline machine, which may include the water supply device described in any of the above embodiments, and the total water inlet 10 of the water supply device is used to connect to the water outlet of the water purifier. The water purifier may include a reverse osmosis filter element, an ultrafiltration filter element, a nanofiltration filter element, or a filter element composed of any two or more of them. Optionally, the water purifier may include a large-flux filter element or a small-flux filter element. As described above, a check valve and a high-pressure switch may be provided on the water outlet pipe connecting the water purifier to the water outlet, so as to maintain pressure in the water outlet pipe and produce purified water when the pressure is released. Thus, the water purifier can be linked with the pipeline machine and provide high-quality purified water to users.

[0062] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "vertical", "horizontal", "top", "bottom", etc. are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0063] For ease of description, area-relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the regional positional relationship between one or more components or features shown in the figures and other components or features. It should be understood that area-relative terms include not only the orientation of the components as described in the figures, but also different orientations in use or operation. For example, if the components in the drawings are inverted as a whole, the situation where the components are "above other components or features" or "above other components or features" will include the situation where the components are "below other components or structures" or "below other components or structures". Thus, the exemplary term "above" may include both the orientations "above" and "below". In addition, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document is intended to include all of these situations.

[0064] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0065] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0066] The present invention has been described through the above-described embodiments. However, it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water supply device having a main water inlet and a main water outlet, characterized in that: include: A cold tank, the cold tank comprising a cold water chamber and a refrigeration assembly, the refrigeration assembly comprising a cold end and a hot end, the cold end being used to cool the water in the cold water chamber, the water inlet of the cold water chamber being connected to the main water inlet via a cold tank water supply pipeline, and the water outlet of the cold water chamber being connected to the main water outlet; a hot water tank, wherein the water inlet of the hot water tank is connected to the main water inlet via a hot water supply pipe, the water outlet of the hot water tank is connected to the main water outlet via a hot water pipe, and a heater is provided on the hot water pipe; a heat exchange water tank, wherein the water inlet of the heat exchange water tank is connected to the water outlet of the hot water tank via a first circulation pipeline, and the water outlet of the heat exchange water tank is connected to the water inlet of the hot water tank via a second circulation pipeline, wherein a heat exchange pump is provided on the first circulation pipeline, wherein the water stored in the heat exchange water tank is used to dissipate heat from the hot end of the refrigeration component; and A controller is used to control the heat exchange pump to start when the water temperature in the heat exchange water tank is higher than a first temperature range.

2. The water supply device according to claim 1, characterized in that The water supply device further includes a heat exchange temperature sensor, which is disposed on the heat exchange water tank. The water temperature in the heat exchange water tank is determined by the controller based on a detection result of the heat exchange temperature sensor.

3. The water supply device according to claim 1, characterized in that The controller is further configured to determine the water temperature in the water exchange water tank according to the cooling time of the refrigeration component.

4. The water supply device according to claim 1, characterized in that The water supply device further comprises a cold water temperature sensor, which is used to detect the water temperature in the cold water chamber; The controller is further configured to determine the water temperature in the heat exchange water tank according to a rate of decrease in the water temperature of the cold water chamber.

5. The water supply device according to claim 1, characterized in that The controller is used to control the heat exchange pump to shut down when the water temperature in the heat exchange water tank is lower than the first temperature range.

6. The water supply device according to claim 1, characterized in that The water supply device also includes: a hot water temperature sensor, used to detect the water temperature in the hot water tank; Drains that communicate with the outside world; and A valve assembly, comprising a first valve water inlet, a second valve water inlet and a third valve water inlet, wherein: The first valve water port is connected to the water outlet of the first circulation pipeline, and the second valve water port is connected to the water inlet of the heat exchange water tank, so that the water inlet of the heat exchange water tank is connected to the first circulation pipeline through the valve assembly. The third valve water outlet is connected to the drain outlet, The valve assembly has a first position for connecting the first valve water port to the second valve water port, and a second position for connecting the first valve water port to the third valve water port, wherein: The controller is used to control the valve assembly to switch from the first position to the second position and control the heat exchange pump to start when the water temperature in the hot water tank is higher than a second temperature range.

7. The water supply device according to claim 6, characterized in that The second temperature range is higher than the first temperature range.

8. The water supply device according to claim 6, characterized in that The controller is used to control the valve assembly to switch from the second position to the first position when the water temperature in the hot water tank is lower than the second temperature range.

9. The water supply device according to claim 6, characterized in that The valve assembly further has a third position for communicating the second valve water port with the third valve water port, and the controller is used for controlling the valve assembly to be in the third position in response to a drainage operation by a user.

10. The water supply device according to claim 1, characterized in that The water inlet of the heat exchange water tank is arranged at the lower part of the heat exchange water tank, and the water outlet of the heat exchange water tank is arranged at the upper part of the heat exchange water tank.

11. The water supply device according to claim 1, characterized in that The hot end of the refrigeration assembly includes a plurality of heat dissipation fins, and the plurality of heat dissipation fins are at least partially located inside the water exchange tank.

12. The water supply device according to claim 1, characterized in that The water supply device also includes: A cold water tank, the cold water tank being arranged in series on the cold tank water supply pipeline; and A cold water pump is provided in series on the cold water supply pipe between the cold water tank and the cold water tank. The controller is further configured to control the cold water pump to start in response to a water extraction operation by a user.

13. The water supply device according to claim 12, characterized in that: The water supply device also includes: A cold water control valve, the cold tank water supply pipeline is connected to the main water inlet via the cold water control valve; and a first water level detection component, the first water level detection component is used to detect the water level in the cold water tank, wherein the controller is further used to: When the water level in the cold water tank is lower than or equal to the lower limit of the cold water level, the cold water control valve is controlled to open, and When the water level of the cold water tank is higher than or equal to the upper limit of the cold water level, the cold water control valve is controlled to close.

14. The water supply device according to claim 1, characterized in that The water supply device also includes: a hot water control valve, the hot water supply pipeline being connected to the main water inlet via the hot water control valve; and A second water level detection component is used to detect the water level in the hot water tank, wherein the controller is further used to: When the water level in the hot water tank is lower than or equal to the lower limit of the hot water level, the hot water control valve is controlled to open, and When the water level of the hot water tank is higher than or equal to the upper limit of the hot water level, the hot water control valve is controlled to close.

15. The water supply device according to claim 1, characterized in that The water supply device further comprises a cold water temperature sensor, which is used to detect the water temperature in the cold water chamber; The controller is further configured to control the refrigeration component to operate when the water temperature in the cold water chamber is higher than a third temperature range, and to control the refrigeration component to stop operating when the water temperature in the cold water chamber is lower than the third temperature range.

16. The water supply device according to claim 15, characterized in that When the water temperature in the heat exchange water tank is higher than a first temperature range and the refrigeration component stops working, the heat exchange pump is controlled to work for no longer than a first duration.

17. A pipeline machine, characterized in that: The pipeline machine comprises: The water supply device according to any one of claims 1 to 16, wherein the total water inlet of the water supply device is used to be connected to the water outlet of the water purifier.

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