Water supply device and control method thereof

Abstract

The application discloses a water supply device and a control method thereof, and relates to the technical field of water supply. The water supply device comprises a first water storage unit and a functional water generating unit, the functional water generating unit can communicate with the first water storage unit through a first water path, a first pressure increasing device is arranged on the first water path, and the first pressure increasing device is used for supplying water from the first water storage unit to the functional water generating unit. The water supply device further comprises a first water storage unit water supply path, one end of the first water storage unit water supply path can communicate with the first water storage unit, and the other end of the first water storage unit water supply path can communicate with a water outlet of the water supply device. The water supply device further comprises a second water path, one end of the second water path can communicate with an outlet of the first pressure increasing device, and the other end of the second water path can communicate with the first water storage unit water supply path. The application can solve the problem that the temperature change of water output when the first water storage unit water supply path starts to supply water after the water supply device is not used for a long time does not meet the requirements.

Description

Technical Field

[0001] This invention relates to the field of water supply technology, and in particular to a water supply device and its control method. Background Technology

[0002] Existing water supply devices can supply users with functional water, such as hydrogen-rich water, oxygen-rich water, sparkling water, or energy-boosting water like vitamin C water or coffee. In these devices, water is pressurized and fed into a higher-pressure functional water generation unit. This unit then generates functional water, which is supplied to the user when needed. For example, to increase the concentration of functional water generated by the unit, chilled water is typically fed into the functional water generation unit. Therefore, the water supply device can also directly supply chilled water to users via a water supply line. Additionally, water supply devices generally include tanks for storing hot water to provide hot water to users. When the water supply device stops supplying cold water for an extended period, the cold water in the supply circuit will naturally heat up or become too hot due to the influence of the tank containing hot water. Subsequently, when the user needs cold water again, the water actually supplied from the water supply circuit may be at room temperature or even hotter than room temperature, which is not the cold water the user needs, resulting in a poor user experience.

[0003] As described above, the temperature of the entire water supply system changes over time due to prolonged inactivity. It can rise and become warmer or fall and become colder. Even if the user drains the water from the supply system and stops using it, the water newly introduced into the system will also experience temperature fluctuations due to natural heating and cooling or the system's own temperature. Consequently, the water flowing out of the supply system will not reach its original temperature. The user needs to drain a considerable amount of water before the supply system reaches the temperature of the newly introduced water. Only then will the water output from the supply system reach a satisfactory temperature, for example, at which the taste meets the user's requirements. Even if the user obtains water at a satisfactory temperature through these steps, the entire process takes a considerable amount of time, resulting in a poor user experience and a significant waste of water resources. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a water supply device and its control method, which can solve the problem that the output water temperature of the first water storage unit does not meet the requirements when the water supply circuit starts to supply water after the water supply device has not been used for a long time.

[0005] The specific technical solution of this invention is as follows:

[0006] A water supply device, the water supply device comprising:

[0007] A first water storage unit and a functional water generation unit, wherein the functional water generation unit can be connected to the first water storage unit through a first water passage;

[0008] A first booster device is installed on the first water path, and the first booster device is at least used to supply water from the first water storage unit to the functional water generation unit;

[0009] The water supply circuit of the first water storage unit has one end connected to the first water storage unit and the other end connected to the outlet of the water supply device.

[0010] The water supply device further includes: a second water passage, one end of which can be connected to the outlet of the first booster device, and the other end of which can be connected to the water supply passage of the first water storage unit, for use to allow at least a portion of the stored water in the water supply passage of the first water storage unit to flow back to the first water storage unit under the action of the first booster device.

[0011] or,

[0012] The water supply device further includes a second water path and a third water path. One end of the third water path can be connected to the first water storage unit, and the other end can be connected to the outlet of the first booster device. One end of the second water path can be connected to the inlet of the first booster device, and the other end can be connected to the water supply path of the first water storage unit. It is used to allow at least a portion of the stored water in the water supply path of the first water storage unit to flow back to the first water storage unit under the action of the first booster device.

[0013] Preferably, when the water supply device further includes the second water path,

[0014] The other end of the second waterway can be connected to the end of the water supply waterway of the first water storage unit that is away from the first water storage unit.

[0015] Preferably, when the water supply device further includes the second water path,

[0016] The other end of the second water path can be connected to the end of the water supply path of the first water storage unit that is close to the first water storage unit. The water supply device also includes a fourth water path, one end of which can be connected to the end of the water supply path of the first water storage unit that is far from the first water storage unit, and the other end of which can be connected to the first water storage unit.

[0017] Preferably, a first on / off valve or a first one-way valve is provided on the water supply line of the first water storage unit. The first on / off valve or the first one-way valve is located between the connection point between the other end of the second water line and the water supply line of the first water storage unit and the first water storage unit. The first one-way valve enables the first water storage unit to conduct to the connection point between the other end of the second water line and the water supply line of the first water storage unit.

[0018] Preferably, when the water supply device further includes the second water path and the third water path, the other end of the second water path is connected to the end of the water supply path of the first water storage unit that is away from the first water storage unit.

[0019] Preferably, a first outlet control valve is provided on the water supply line of the first water storage unit, and the other end of the second water line is close to the first outlet control valve and located upstream of the first outlet control valve at the connection point between the second water line and the water supply line of the first water storage unit.

[0020] Preferably, a flow control unit is provided on the water supply line of the first water storage unit;

[0021] The flow limiting control unit is located downstream of the connection point between the second waterway and the water supply waterway of the first water storage unit.

[0022] Preferably, the water supply device has at least a first state and a second state.

[0023] When the water supply device further includes a second water path, in the first state, the outlet of the first booster device is connected to the second water path, the outlet of the first booster device is disconnected from the first water path connecting the functional water generating unit, and the first booster device is in an open state; in the second state, the outlet of the first booster device is disconnected from the second water path, the outlet of the first booster device is connected to the first water path connecting the functional water generating unit, and the first booster device is in an open state.

[0024] or,

[0025] When the water supply device further includes the second water path and the third water path, in the first state, the outlet of the first booster device is connected to the third water path, the inlet of the first booster device is connected to the second water path, the outlet of the first booster device is disconnected from the first water path connecting to the functional water generating unit, and the first booster device is in the open state; in the second state, the outlet of the first booster device is disconnected from the third water path, the outlet of the first booster device is connected to the first water path connecting to the functional water generating unit, and the first booster device is in the open state.

[0026] Preferably, when the water supply device further includes the second water path, the water supply device further includes: a first water path switching unit having a first port, a second port and a third port, wherein the first water path switching unit is capable of controlling the connection and disconnection between the first port and the second port, and between the first port and the third port;

[0027] The first port is connected to the outlet of the first booster device, the second port is connected to the first water passage connecting the functional water generation unit, and the third port is connected to the second water passage.

[0028] or,

[0029] When the water supply device further includes the second water path and the third water path, the water supply device further includes: a first water path switching unit having a first port, a second port, and a third port, and a second water path switching unit having a fourth port, a fifth port, and a sixth port. The first water path switching unit is capable of controlling the connection and disconnection between the first port and the second port, and between the first port and the third port; the second water path switching unit is capable of controlling the connection and disconnection between the fourth port and the fifth port, and between the fourth port and the sixth port.

[0030] The first port is connected to the outlet of the first pressurization device, the second port is connected to the first water passage connecting the functional water generation unit, and the third port is connected to the third water passage.

[0031] The fourth port is connected to the inlet of the first booster device, the fifth port is connected to the first water passage connecting the first water storage unit, and the sixth port is connected to the second water passage.

[0032] Preferably, the water supply device further includes:

[0033] A refrigeration unit for cooling the water in the first water storage unit;

[0034] The second water storage unit is connected to the first water storage unit through the fifth water passage;

[0035] A third water storage unit capable of heating water, which can be connected to the second water storage unit;

[0036] The second water storage unit is located at the upper part of the water supply device; the first water storage unit, the functional water generating unit, and the first pressurizing device are located at the lower part of the water supply device; in the height direction, the third water storage unit is located between the second water storage unit and the first water storage unit, the functional water generating unit, and the first pressurizing device; the water supply path of the first water storage unit passes around the third water storage unit.

[0037] Preferably, the power supply line for supplying power to the refrigeration unit, the first pressurization device, and the third water storage unit is located on one side of the water supply device, and the water supply circuit of the first water storage unit, the first water storage unit, the second water storage unit, and the third water storage unit are located on the other side of the water supply device relative to the power supply line.

[0038] Preferably, the water supply device further includes:

[0039] The first filter element and the first connecting water passage are connected. The outlet of the first filter element can be connected to the first water storage unit, and the outlet of the first booster device can be connected to the inlet of the first filter element through the first connecting water passage.

[0040] Preferably, the first filter element is located upstream of the first water storage unit.

[0041] Preferably, the water supply device further includes a water purification unit for purifying the water entering the first water storage unit, the water purification unit including a pre-filter and a post-filter arranged sequentially along the water flow direction;

[0042] The first filter element includes at least a post-filter element.

[0043] Preferably, the post-filter includes an activated carbon filter unit and / or a microfiltration filter unit and / or a reverse osmosis membrane filter unit and / or a nanofiltration membrane filter unit and / or an ultrafiltration filter unit.

[0044] Preferably, the water supply device includes: a second booster device connected upstream of the post-filter; and a second connecting water passage, wherein the outlet of the first booster device can be connected upstream of the inlet of the second booster device through the second connecting water passage.

[0045] Preferably, the water supply device further includes a water purification unit for purifying the inlet water of the first water storage unit. The water purification unit includes the first filter element, which includes an activated carbon filter element and / or a microfiltration filter element and / or a reverse osmosis membrane filter element and / or a nanofiltration membrane filter element and / or an ultrafiltration filter element.

[0046] Preferably, a second water storage unit is connected between the outlet of the water purification unit and the first water storage unit, and a second sterilization device is provided in the second water storage unit.

[0047] Preferably, the water supply device further includes a refrigeration unit for cooling the water in the first water storage unit.

[0048] Preferably, the water supply device has at least a fourth state and a fifth state.

[0049] In the fourth state, the outlet of the first pressurizing device is connected to the inlet of the first filter element, the outlet of the first pressurizing device is disconnected from the inlet of the functional water generating unit, and the first pressurizing device is in the open state.

[0050] In the fifth state, the outlet of the first pressurizing device is disconnected from the inlet of the first filter element, and the outlet of the first pressurizing device is connected to the inlet of the functional water generating unit, and the first pressurizing device is in the open state.

[0051] Preferably, the first pressurization device is a diaphragm pump, and at least one water-contacting component of the diaphragm pump is made of one of the following materials: EPDM, PPS, or PVC.

[0052] Preferably, the water supply device further includes:

[0053] The third water passage has one end connected to the outlet of the first pressurizing device and the other end connected to the first water storage unit.

[0054] A first sterilization device for sterilizing water in a first water storage unit.

[0055] Preferably, the water supply device further includes:

[0056] A water supply circuit for the functional water generation unit is provided, which can be connected to the functional water generation unit. A fourth water outlet control valve is provided on the water supply circuit for the functional water generation unit.

[0057] A water output mechanism is connected to the water supply circuit of the functional water generation unit. The water output mechanism is equipped with an ultraviolet sterilization unit for sterilizing the water flowing through it.

[0058] Preferably, the water supply device further includes:

[0059] The second water storage unit is connected to the first water storage unit through the fifth water passage;

[0060] The water supply circuit of the second water storage unit can be connected to the second water storage unit;

[0061] A third water storage unit capable of heating water, which can be connected to the second water storage unit;

[0062] The water supply circuit of the third water storage unit can be connected to the third water storage unit;

[0063] The first water storage unit is equipped with a first water outlet control valve on its water supply line, the second water storage unit is equipped with a second water outlet control valve on its water supply line, and the third water storage unit is equipped with a third water outlet control valve on its water supply line.

[0064] A control method for a water supply device as described above, the control method comprising:

[0065] When the first preset condition is met, if the water supply device further includes a second water path, the outlet of the first booster device is connected to the second water path, the outlet of the first booster device is disconnected from the first water path of the water generation unit, and the first booster device is turned on to enter the first state.

[0066] When the water supply device further includes the second water path and the third water path, the outlet of the first booster device is connected to the third water path, the inlet of the first booster device is connected to the second water path, and the outlet of the first booster device is disconnected from the first water path that connects to the functional water generation unit; the first booster device is turned on to enter the first state.

[0067] The first preset condition includes at least one of the following: every first preset time interval, reaching a set time;

[0068] In the first state, when the second preset condition is met, if the water supply device further includes a second water path, one end of the second water path is disconnected from the outlet of the first booster device. If the water supply device further includes the second water path and the third water path, the outlet of the first booster device is disconnected from the third water path and / or the inlet of the first booster device is disconnected from the second water path.

[0069] Preferably, the first preset condition further includes: a second preset time has elapsed since the last time water in the first water storage unit was output through the water supply circuit of the first water storage unit.

[0070] Preferably, the control method further includes:

[0071] When the water supply device further includes a second water path, when the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the power of the first booster device is increased. When the third preset condition is met, one end of the second water path is disconnected from the outlet of the first booster device, the first booster device is turned off, and the first state is exited. Then, the water in the first water storage unit is output through the first water storage unit water supply path.

[0072] Preferably, the control method further includes:

[0073] When the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the water supply device is kept in the first state, and the water in the first water storage unit is output through the water supply path of the first water storage unit. Then, when the fourth preset condition is met, one end of the second water path is disconnected from the outlet of the first booster device.

[0074] Preferably, when the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the water supply device is exited from the first state, and the water in the first water storage unit is output through the water supply circuit of the first water storage unit.

[0075] If the water output from the first water storage unit through the water supply circuit of the first water storage unit does not meet the fifth preset condition, then the water in the first water storage unit will return to the first state after the water output from the first water storage unit through the water supply circuit of the first water storage unit stops.

[0076] If the water in the first water storage unit is output through the water supply circuit of the first water storage unit and meets the fifth preset condition, then after the water in the first water storage unit stops being output through the water supply circuit of the first water storage unit, it will re-enter the first state when the first preset condition is met.

[0077] Preferably, when the water supply device further includes a second water path, the water supply device further includes a third water path, one end of which can be connected to the outlet of the first booster device, and the other end of which can be connected to the first water storage unit.

[0078] The water supply device has a first state, a second state, and a third state. In the first state, the outlet of the first booster device is connected to the second water passage, the outlet of the first booster device is disconnected from the first water passage connecting the functional water generation unit, the outlet of the first booster device is disconnected from the third water passage, and the first booster device is in the open state.

[0079] In the second state, the outlet of the first booster device is disconnected from the third water passage, the outlet of the first booster device is disconnected from the second water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, and the first booster device is in the open state.

[0080] In the third state, the outlet of the first pressurizing device is connected to the third water passage, the outlet of the first pressurizing device is disconnected from the second water passage, and the outlet of the first pressurizing device is disconnected from the first water passage connecting to the functional water generating unit; the first pressurizing device is in the open state.

[0081] When the water supply device further includes a second water path and a third water path, the water supply device has a first state, a second state and a third state. In the first state, the outlet of the first booster device is connected to the third water path, the outlet of the first booster device is disconnected from the first water path that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water path, and the first booster device is in the open state.

[0082] In the second state, the outlet of the first booster device is disconnected from the third water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water passage and / or the first water passage that connects to the first water storage unit, and the first booster device is in the open state.

[0083] In the third state, the outlet of the first booster device is connected to the third water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water passage and / or the first water passage that connects to the first water storage unit, and the first booster device is in the open state.

[0084] The control method may further include:

[0085] When the water level in the functional water generation unit is lower than a preset amount, it enters the second state;

[0086] When the temperature of the water in the first water storage unit is lower than the preset temperature, it enters the third state;

[0087] The priority of entering the second state is higher than the priority of entering the third state, and the priority of entering the third state is higher than the priority of entering the first state.

[0088] A control method for a water supply device as described above, wherein the water supply device has a fifth state. When the water supply device further includes a second water path, in the fifth state, the outlet of the first booster device is disconnected from the second water path, the outlet of the first booster device is connected to the inlet of the functional water generating unit, the first booster device is in an open state, and the outlet of the first booster device is disconnected from the inlet of the first filter element. When the water supply device further includes a second water path and a third water path, in the fifth state, the outlet of the first booster device is disconnected from the third water path, the outlet of the first booster device is connected to the inlet of the functional water generating unit, the inlet of the first booster device is connected to the second water path and / or the first water path connecting to the first water storage unit, the first booster device is in an open state, and the outlet of the first booster device is disconnected from the inlet of the first filter element.

[0089] The control method includes:

[0090] After the first booster device has stopped operating for a first preset time period, before entering the fifth state, one end of the first water connection is connected to the outlet of the first booster device, and the first booster device is turned on so that the water flowing out of the first booster device is filtered through the first filter element.

[0091] The technical solution of the present invention has the following significant beneficial effects:

[0092] When the first water storage unit in the water supply device has not supplied water through its water supply path for an extended period, the water supply device can activate the first booster to input water from the first water storage unit into its water supply path through the second water path. This causes at least a portion of the water in the first water supply path to flow back to the first water storage unit, replacing the water in the first water supply path whose temperature has changed significantly. This also alters the temperature of the first water supply path. Alternatively, the water supply device can activate the first booster to draw water from the first water supply path into the second water path, and then back into the first water storage unit through the third water path. This again causes at least a portion of the water in the first water supply path to flow back to the first water storage unit, replacing the water in the first water supply path whose temperature has changed significantly. This also alters the temperature of the first water supply path. By using the above method, when users take water from the water supply device later, the temperature of the first cup of water output from the water supply device can be significantly close to or equal to the temperature of the water in the first water storage unit, which can meet the user's temperature requirements as much as possible, thereby improving the user's experience.

[0093] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0094] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0095] Figure 1 This is a schematic diagram of the water supply device in the first embodiment of the present invention;

[0096] Figure 2 This is a schematic diagram of the water supply device in a second embodiment of the present invention;

[0097] Figure 3 This is a schematic diagram of the water supply device in a third embodiment of the present invention;

[0098] Figure 4 This is a schematic diagram of the water supply device in the fourth embodiment of the present invention;

[0099] Figure 5 This is a schematic diagram of the water supply device in the fifth embodiment of the present invention.

[0100] The reference numerals in the above figures are as follows:

[0101] 1. First water storage unit; 2. Functional water generation unit; 3. First water path; 4. First booster device; 5. Water supply path for the first water storage unit; 6. Second water path; 7. Third water path; 8. Fourth water path; 9. First on / off valve; 10. First outlet control valve; 11. Flow limiting control unit; 12. First filter element; 121. Post-filter element; 13. First connecting water path; 14. Third valve; 15. Pre-filter element; 16. Second booster device; 17. Second connecting water path; 18. Second check valve; 19. Third check valve; 20. Second water storage unit; 21. Sixth valve; 22. First valve; 23. Second valve; 24. Water supply path for the functional water generation unit; 25. Fourth outlet control valve; 26. Water output mechanism; 28. 29. Water supply circuit for the second water storage unit; 30. Water supply circuit for the third water storage unit; 31. Seventh valve; 32. Second outlet control valve; 33. Third outlet control valve; 34. Fifth valve; 35. Gas cylinder; 36. First venting water circuit; 37. First venting control valve; 38. Second venting water circuit; 39. Second venting control valve; 40. Third venting water circuit; 41. Third venting control valve; 42. Fourth venting water circuit; 43. Fourth venting control valve; 44. Eighth check valve; 45. Eighth valve; 46. Inlet valve; 47. Fifth check valve; 48. First check valve; 49. Fourth valve; 50. Seventh check valve; 51. Fifth water circuit; 52. Ninth check valve; 53. Sixth water circuit; 54. Ninth valve. Detailed Implementation

[0102] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0103] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0104] To address the issue that the water temperature at the start of water supply from the first water storage unit does not meet requirements after a prolonged period of inactivity, this application proposes a water supply device. Figure 1 This is a schematic diagram of the water supply device in the first embodiment of the present invention. Figure 2 This is a schematic diagram of the water supply device in a second embodiment of the present invention. Figure 3 This is a schematic diagram of the water supply device in a third embodiment of the present invention, as shown below. Figures 1 to 3 As shown, the water supply device may include: a first water storage unit 1 and a functional water generation unit 2.

[0105] Unit 2 can be connected to the first water storage unit 1 via the first water passage 3; a first booster device 4 is installed on the first water passage 3, which is used at least to supply water from the first water storage unit 1 to the functional water generation unit 2; the first water storage unit water supply passage 5 has one end connected to the first water storage unit 1 and the other end connected to the outlet of the water supply device. The water supply device also includes: a second water passage 6, one end of which can be connected to the outlet of the first booster device 4, and the other end of which can be connected to the first water storage unit 1.

[0106] The water supply circuits 5 of the unit are connected, and are used to allow at least a portion of the stored water in the water supply circuit 5 of the first water storage unit to flow back to the first water storage unit 1 under the action of the first pressurization device 4. Alternatively, the water supply device may further include:

[0107] The second water passage 6 and the third water passage 7 are connected. One end of the third water passage 7 can be connected to the first water storage unit 1, and the other end can be connected to the outlet of the first booster device 4. One end of the second water passage 6 can be connected to the inlet of the first booster device 4, and the other end can be connected to the water supply passage 5 of the first water storage unit. These are used for the first booster device.

[0108] The device 4 causes at least a portion of the water in the water supply path 5 of the first water storage unit to flow back to the first water storage unit 1.

[0109] When the first water storage unit 1 in the water supply device has not supplied water to the outside through the first water storage unit water supply circuit 5 for a long time, the water supply device can activate the first booster device 4 to input the water in the first water storage unit 1 into the first water storage unit water supply circuit 5 through the second water circuit 6, thereby enabling the first water storage unit to...

[0110] At least a portion of the water in water supply path 5 flows back to the first water storage unit 1. Water in water supply path 55, whose temperature has changed significantly, is replaced by water in the first water storage unit 1. This also alters the temperature of water supply path 5. Alternatively, the water supply device can activate the first booster device 4 to draw water from water supply path 5 into the second water path 6, and then back to the first water storage unit 1 via the third water path 7. This again allows at least a portion of the water in water supply path 5 to flow back to the first water storage unit 1, replacing water in water supply path 5 with water in the first water storage unit 1, and further altering the temperature of water supply path 5. Through these methods, the temperature of the first cup of water dispensed from the water supply device can be significantly closer to or equal to the temperature of the water in the first water storage unit, better meeting the user's temperature requirements and improving the user experience.

[0111] To better understand the water supply device in this application, it will be further explained and described below. For example... Figures 1 to 3 As shown, the water supply device may include: a first water storage unit 1, a functional water generating unit 2, and a first pressurizing device 4. The functional water generating unit 2 is connected to the first water storage unit 1 via a first water passage 3. The first pressurizing device 4 is installed on the first water passage 3, with its inlet connected to the first water storage unit 1 and its outlet connected to the functional water generating unit 2. The first pressurizing device 4 is used at least to supply water from the first water storage unit 1 to the functional water generating unit 2. The first water storage unit 1 stores a certain volume of water, which can be water of different temperatures, so that when the functional water generating unit 2 needs replenishment, the first pressurizing device 4 can be directly activated to replenish the functional water generating unit 2 with the water stored in the first water storage unit 1. The water of different temperatures can be hot water, cold water, or room temperature water, etc. For example, when the first water storage unit 1 contains hot water, the functional water generating unit 2 can contain functional water such as coffee solution to maintain human functions. When the water stored in the first water storage unit 1 is cold water, the functional water generation unit 2 can be hydrogen-rich water, oxygen-rich water, sparkling water, etc., so that functional water with a higher concentration can be obtained.

[0112] To ensure the water stored in the first water storage unit 1 is hot, a heating element can be installed in the first water storage unit 1 to heat the water, thus turning it into hot water. To ensure the water stored in the first water storage unit 1 is cold water, the water supply device can include a cooling unit to cool the water stored in the first water storage unit 1 to a lower temperature, which is then stored in the first water storage unit 1. This lower temperature can be a user-set preferred cold water temperature. When the functional water generating unit 2 needs to be replenished, the cold water, hot water, or room temperature water stored in the first water storage unit 1 can be directly input into the functional water generating unit 2 through the first pressurization device 4. The functional water generating unit 2 generates functional water. It can receive the cold water, hot water, or room temperature water provided by the first water storage unit 1 and generate functional water, which can be stored in the functional water generating unit 2. When a user needs functional water, the functional water already generated in the functional water generating unit 2 can be supplied to the user at any time. As is feasible, the water used in this function can be cold water, room temperature water, or hot water.

[0113] As an option, the refrigeration unit may include an evaporator through which a low-temperature refrigerant is introduced. The refrigerant directly or indirectly exchanges heat with the water in the first water storage unit 1, thereby lowering the temperature of the water in the first water storage unit 1 to a user-set preferred chilled water temperature. The refrigeration unit may also include a compressor, a condenser, and an expander connected in sequence, with the evaporator connected between the compressor inlet and the expander outlet. These components are connected together and, through the operation of the compressor, form a refrigeration cycle pipeline filled with refrigerant. Further, the evaporator may be disposed on the first water storage unit 1 to cool the water stored in it. Specifically, the evaporator may be disposed within the space inside the first water storage unit 1, allowing the water stored in the first water storage unit 1 to directly contact and exchange heat with the evaporator, thus improving the heat exchange effect. In other alternative embodiments, the evaporator may also be disposed around the outside of the first water storage unit 1, as long as heat transfer is possible between the evaporator and the first water storage unit 1.

[0114] like Figure 1 As shown, in a first feasible embodiment, the water supply device may include a second water passage 6. One end of the second water passage 6 can be connected to the outlet of the first booster device 4, and the other end of the second water passage 6 can be connected to the water supply passage 5 of the first water storage unit. The second water passage 6 is used to cause at least a portion of the water stored in the water supply passage 5 of the first water storage unit to flow back to the first water storage unit 1 under the action of the first booster device 4.

[0115] The water supply device can have at least a first state and a second state. In the first state, the outlet of the first booster device 4 is connected to the second water passage 6, and the outlet of the first booster device 4 is disconnected from the first water passage 3 of the functional water generation unit 2; the first booster device 4 is in the open state. In the second state, the outlet of the first booster device 4 is disconnected from the second water passage 6, and the outlet of the first booster device 4 is connected to the first water passage 3 of the functional water generation unit 2; the first booster device 4 is in the open state. When the water supply device needs to replenish water to the functional water generation unit 2, the water supply device can switch to the second state.

[0116] As an option, the water supply device may include a first water path switching unit having a first port, a second port, and a third port. The first water path switching unit can control the on / off connection between the first and second ports, and between the first and third ports. The first port is connected to the outlet of the first booster device 4, the second port is connected to the first water path 3 of the connecting water generation unit 2, and the third port is connected to the second water path 6. Through the aforementioned first water path switching unit, the water supply device can be switched between a first state and a second state. For example, the first water path switching unit can adopt a three-way valve structure, or it can include a first valve 22 connected between the first and second ports and a second valve 23 connected between the first and third ports. Of course, the first water path switching unit can also adopt other devices capable of controlling the on / off connection between the first and second ports, and between the first and third ports.

[0117] In the above embodiments, as feasible, such as Figure 1 As shown, the other end of the second water passage 6 can be connected to the end of the first water storage unit supply water passage 5 that is away from the first water storage unit 1. In this way, when the first water storage unit 1 in the water supply device has not output water through the first water storage unit supply water passage 5 for a long time, the water supply device can switch to the first state and turn on the first booster device 4 to input the water in the first water storage unit 1 into the first water storage unit supply water passage 5 through the second water passage 6. This allows as much water as possible stored in the first water storage unit supply water passage 5 to flow back into the first water storage unit 1. As much water as possible in the first water storage unit supply water passage 5 after a large temperature change is replaced with water in the first water storage unit 1. At the same time, it can also change the temperature of as much water as possible in the first water storage unit supply water passage 5, making it close to or equal to the temperature of the water in the first water storage unit 1.

[0118] As a feasible option, such as Figure 1 As shown, a ninth check valve 52 can be installed on the second water passage 6. The ninth check valve 52 can make the outlet of the first booster device 4 open to the water supply passage 5 of the first water storage unit.

[0119] As a feasible alternative, in a second feasible implementation, such as Figure 2 As shown, the other end of the second water passage 6 can be connected to the end of the first water storage unit supply water passage 5 near the first water storage unit 1. The water supply device may include a fourth water passage 8, one end of which can be connected to the end of the first water storage unit supply water passage 5 away from the first water storage unit 1, and the other end of which can be connected to the first water storage unit 1. When the first water storage unit 1 in the water supply device has not output water through the first water storage unit supply water passage 5 for a long time, the water supply device can switch to the first state, turn on the first booster device 4 to input the water in the first water storage unit 1 through the second water passage 6 to the end of the first water storage unit supply water passage 5 near the first water storage unit 1, and then flow into the first water storage unit supply water passage 5, and then flow out from the fourth water passage 8 back to the first water storage unit 1. Similarly, the above method can also be used to replace as much water as possible in the first water storage unit 1 after the temperature of the water supply circuit 5 of the first water storage unit has changed significantly. At the same time, it can also change the temperature of as much water supply circuit 5 of the first water storage unit as possible, so that it is close to or equal to the temperature of the water in the first water storage unit 1.

[0120] In this implementation, as is feasible, such as Figure 2 As shown, a first on / off valve 9 or a first one-way valve 48 is provided on the water supply circuit 5 of the first water storage unit. The first on / off valve 9 or the first one-way valve 48 is located between the connection point between the other end of the second water circuit 6 and the water supply circuit 5 of the first water storage unit and the first water storage unit 1. The first one-way valve 48 enables the first water storage unit 1 to conduct to the connection point between the other end of the second water circuit 6 and the water supply circuit 5 of the first water storage unit. When a first on / off valve 9 is installed on the water supply circuit 5 of the first water storage unit, the first on / off valve 9 can be closed when the water supply device needs to replace the water in the water supply circuit 5 of the first water storage unit, which has undergone a significant temperature change, with the water in the first water storage unit 1. This prevents the water flowing from the outlet of the first booster device 4 through the second water circuit 6 into the water supply circuit 5 of the first water storage unit from flowing back directly to the first water storage unit 1 through the upstream of the water supply circuit 5. In this way, the water in the water supply circuit 5 of the first water storage unit, which has undergone a significant temperature change, cannot be efficiently and in large quantities replaced with the water in the first water storage unit 1. Similarly, when a first one-way valve 48 is installed on the water supply circuit 5 of the first water storage unit, the water flowing from the outlet of the first booster device 4 through the second water circuit 6 into the water supply circuit 5 of the first water storage unit cannot flow back to the first water storage unit 1 through the upstream of the water supply circuit 5 of the first water storage unit and the first one-way valve 48.

[0121] like Figure 3As shown, in the third feasible embodiment, the water supply device may include a second water path 6 and a third water path 7. One end of the third water path 7 can be connected to the first water storage unit 1, and the other end can be connected to the outlet of the first pressurizing device 4. One end of the second water path 6 can be connected to the inlet of the first pressurizing device 4, and the other end can be connected to the water supply path 5 of the first water storage unit, for returning at least a portion of the stored water in the water supply path 5 of the first water storage unit to the first water storage unit 1 under the action of the first pressurizing device 4.

[0122] The water supply device has at least a first state and a second state. In the first state, the outlet of the first booster device 4 is connected to the third water passage 7, the inlet of the first booster device 4 is connected to the second water passage 6, and the outlet of the first booster device 4 is disconnected from the first water passage 3 of the functional water generation unit 2; the first booster device 4 is in the open state. In the second state, the outlet of the first booster device 4 is disconnected from the third water passage 7, and the outlet of the first booster device 4 is connected to the first water passage 3 of the functional water generation unit 2; the first booster device 4 is in the open state. When the water supply device needs to replenish water to the functional water generation unit 2, the water supply device can switch to the second state.

[0123] In the above-described manner, the water supply device may include a first water path switching unit having a first port, a second port, and a third port. The first water path switching unit is capable of controlling the connection and disconnection between the first port and the second port, and between the first port and the third port. The first port is connected to the outlet of the first pressurization device 4, the second port is connected to the first water path 3 of the connecting water generation unit 2, and the third port is connected to the third water path 7.

[0124] Furthermore, the water supply device may also include a second water path switching unit having a fourth port, a fifth port, and a sixth port. The second water path switching unit is capable of controlling the on / off connection between the fourth port and the fifth port, and between the fourth port and the sixth port. The fourth port is connected to the inlet of the first booster device 4, the fifth port is connected to the first water path 3 connecting to the first water storage unit 1, and the sixth port is connected to the second water path 6.

[0125] The above structure allows the water supply device to be controlled to replace water in the first water storage unit 1 (after a significant temperature change) with water in the first water storage unit 1's water supply path 5, and to change the temperature of the first water storage unit's water supply path 5. This allows the fourth and fifth ports to be disconnected, while the fourth and sixth ports are connected. The water entering the first booster device 4 all comes from the first water storage unit's water supply path 5, thus accelerating the replacement of the water in the first water storage unit's water supply path 5 with water in the first water storage unit 1 and the speed of temperature changes in the first water storage unit's water supply path 5. The second water path switching unit can adopt a three-way valve structure, or it can include a third valve 14 connected between the fourth and fifth ports and a fourth valve 49 connected between the fourth and sixth ports.

[0126] Furthermore, when replenishing the functional water generating unit 2 with water through the first pressurization device 4, the fourth port and the fifth port can be connected, and the fourth port and the sixth port can be disconnected, so as to prevent water with a large temperature change in the water supply circuit 5 of the first water storage unit from entering the functional water generating unit 2.

[0127] When the first water storage unit 1 in the water supply device has not supplied water to the outside through the first water storage unit water supply circuit 5 for a long time, the water supply device can switch to the second state, activate the first booster device 4 to extract at least a portion of the water stored in the first water storage unit water supply circuit 5, and replenish the first water storage unit 1 with water from the first water storage unit 1. The water extracted from the first water storage unit water supply circuit 5 returns to the first water storage unit 1 through the third water circuit 7. In this way, at least a portion of the water stored in the first water storage unit water supply circuit 5 can flow back to the first water storage unit 1, and the water in the first water storage unit water supply circuit 5, which has undergone a significant temperature change, can be replaced by the water in the first water storage unit 1. At the same time, the temperature of the first water storage unit water supply circuit 5 can also be changed.

[0128] Furthermore, the other end of the second water passage 6 can be connected to the end of the first water storage unit's water supply passage 5 that is furthest from the first water storage unit 1. In this way, as much water as possible in the first water storage unit's water supply passage 5, after a significant temperature change, can be replaced with water from the first water storage unit 1, while also changing the temperature of as much of the first water storage unit's water supply passage 5 as possible.

[0129] In the first and third embodiments, such as Figure 1 and Figure 3 As shown, a first outlet control valve 10 can be installed on the water supply circuit 5 of the first water storage unit. The other end of the second water circuit 6 is located near the first outlet control valve 10 and upstream of the first outlet control valve 10 at its connection point with the water supply circuit 5 of the first water storage unit. In the second embodiment, as... Figure 2 As shown, a first outlet control valve 10 can be installed on the water supply circuit 5 of the first water storage unit. One end of the fourth water circuit 8 is connected to the water supply circuit 5 of the first water storage unit near the first outlet control valve 10 and located upstream of the first outlet control valve 10. In this way, the water in the water supply circuit 5 of the first water storage unit upstream of the first outlet control valve 10, after a significant temperature change, can be replaced with water from the first water storage unit 1. At the same time, the temperature of the water supply circuit 5 of the first water storage unit upstream of the first outlet control valve 10 can also be effectively changed.

[0130] As a feasible option, such as Figures 1 to 3 As shown, the water supply device may include a flow-limiting control unit 11 disposed on the water supply path 5 of the first water storage unit. For example, the flow-limiting control unit 11 may be a flow-limiting orifice structure. In the first and third embodiments, the flow-limiting control unit 11 may be disposed downstream of the connection between the second water path 6 and the water supply path 5 of the first water storage unit. In the second embodiment, the flow-limiting control unit 11 may be disposed downstream of the connection between the fourth water path 8 and the water supply path 5 of the first water storage unit. In the above structure, when the water supply device replaces the water in the first water storage unit's water supply path 5 and changes the temperature of the first water storage unit's water supply path 5, if the user needs water supply from the first water storage unit 1 at this time, the first outlet control valve 10 opens. Because the flow limiting control unit 11 limits the flow, the water output from the water supply device through the first pressurization device 4 will not all be supplied to the user through the first outlet control valve 10. At least a portion of the water output from the water supply device can still flow in the second water path 6 and the first water storage unit's water supply path 5, thereby replacing the water in the first water storage unit's water supply path 5 and changing its temperature. Therefore, this structure allows the water supply device to simultaneously supply water from the first water storage unit 1 to the user while replacing the water in the first water storage unit's water supply path 5 and changing its temperature.

[0131] like Figure 1 and Figure 3 As shown, the water supply path 5 of the first water storage unit can be connected to the water output mechanism 26. The water output mechanism 26 can be equipped with an ultraviolet sterilization unit for sterilizing the water flowing through it. Water output from the first water storage unit through the water supply path 5 can be supplied to users after passing through the water output mechanism 26 and being sterilized by the ultraviolet sterilization unit. This method can reduce the amount of bacteria in the output water.

[0132] like Figure 1 and Figure 3As shown, the water supply device may include: a second water storage unit 20, which is connected to the first water storage unit 1 via a fifth water passage 51; a second water storage unit supply passage 28, which is connected to the second water storage unit 20; a third water storage unit 29, which can heat the water, and is connected to the second water storage unit 20; and a third water storage unit supply passage 30, which is connected to the third water storage unit 29. A second outlet control valve 32 may be installed on the second water storage unit supply passage 28, and a third outlet control valve 33 may be installed on the third water storage unit supply passage 30. The second water storage unit supply passage 28 may be connected to a water output mechanism 26. Through these methods, the water output mechanism 26 can supply users with ambient temperature water, cold water, and chilled functional water, respectively. The third water storage unit supply passage 30 may also be connected to the water output mechanism 26. The hot water supplied to the water output mechanism 26 by the water supply circuit 30 of the third water storage unit can be directly output from the outlet of the water output mechanism 26 without being sterilized by the ultraviolet sterilization unit.

[0133] Functional water can be water rich in functional gases that meet certain user needs, such as hydrogen-rich water, oxygen-rich water, sparkling water, etc., and this application does not impose any limitations on it. When the functional water is water rich in certain functional gases, the functional water supply device may include: a functional gas supply unit for inputting functional gases into the functional water generation unit 2, the functional gas supply unit including: a gas cylinder 35 capable of storing functional gases; a pressure reducing device; a fifth valve 34, the outlet of the gas cylinder 35 being connected to the functional water generation unit 2 through the pressure reducing device and the fifth valve 34. Furthermore, a low-pressure switch may be provided between the fifth valve 34 and the pressure reducing device. The low-pressure switch can be triggered under low pressure. When the gas in the gas cylinder 35 is about to run out, and the pressure value inside the gas cylinder 35 is too low, the low-pressure switch is triggered, thereby causing the functional water supply device to alarm, reminding the user to replace the gas cylinder 35.

[0134] In this manner, when functional water generation unit 2 is required to generate functional water, the functional gas stored in gas cylinder 35 is depressurized and replenished to functional water generation unit 2 through a pressure reducing device. Especially when the functional water is sparkling water, functional water generation unit 2 includes a sparkling water generation unit. The functional gas stored in gas cylinder 35 of the functional gas supply unit is carbon dioxide. Carbon dioxide can dissolve in cold water at a high concentration in the high-pressure environment of functional water generation unit 2, thereby generating cold sparkling water for users to use at any time.

[0135] To prevent gas or water in the bubble water generating unit from flowing back to the pressure reducing device or the fifth valve 34 in the functional gas supply unit under pressure, causing leakage, a fourth one-way valve can be installed between the outlet of the gas cylinder 35 and the functional water generating unit 2. The fourth one-way valve is used to connect the outlet of the gas cylinder 35 to the functional water generating unit 2.

[0136] To prevent water or gas in the functional water generation unit 2 from flowing back through the first water passage 3, such as Figures 1 to 3 As shown, a fifth one-way valve 47 is installed on the first water passage 3 between the outlet of the first pressurizing device 4 and the functional water generating unit 2. The fifth one-way valve 47 is used to connect the outlet of the first pressurizing device 4 to the functional water generating unit 2. The functional water generating unit 2 can be a sparkling water generating unit. In order to generate sparkling water, the internal pressure of the functional water generating unit 2 is relatively high. Therefore, the above method can prevent the gas inside the sparkling water generating unit, especially carbon dioxide gas, from flowing back through the first water passage 3 into the first water storage unit 1 or other components, thus avoiding damage to these components. Because the internal pressure of the functional water generating unit 2 is relatively high, the pressure resistance of the functional water generating unit 2 can be greater than that of other components.

[0137] The second water storage unit 20 is used to store a certain capacity of water. The second water storage unit 20 may be equipped with a water level detection unit to detect the internal water level. The second water storage unit 20 can be connected to a water source, and water can be replenished to the second water storage unit 20 based on the water level detected by the water level detection unit. The second water storage unit 20 can replenish water to the first water storage unit 1 through the fifth water passage 51. When the water in the first water storage unit 1 is insufficient or insufficient, water from the second water storage unit 20 can be transported to the first water storage unit 1. The height of the second water storage unit 20 can be higher than the height of the first water storage unit 1, so that gravity can be used to transport water from the second water storage unit 20 to the first water storage unit 1. Correspondingly, the first water storage unit 1 may also be equipped with a water level detection unit to detect the internal water level, so that the functional water supply device can determine the water level in the first water storage unit 1, thereby determining whether to replenish water to the first water storage unit 1 through the second water storage unit 20. To ensure controllability of water replenishment from the second water storage unit 20 to the first water storage unit 1, an on / off valve can be installed on the fifth water passage 51. Alternatively, in other optional embodiments, the first water storage unit 1 and the second water storage unit 20 may also have other monitoring units commonly used by those skilled in the art to detect whether the first water storage unit 1 and the second water storage unit 20 need water replenishment, such as flow sensors, timers, etc., which are not limited here.

[0138] As a feasible option, a second sterilization device can be installed in the second water storage unit 20 to sterilize the water in the second water storage unit 20, thereby extending the time before the room temperature water stored in the second water storage unit 20 deteriorates. Similarly, the water supply device can include a first sterilization device for sterilizing the water in the first water storage unit 1, thereby extending the time before the water stored in the first water storage unit 1 deteriorates.

[0139] Since the refrigeration unit needs to cool the water in the first water storage unit 1, and the water in the first water storage unit 1 needs to be pressurized by the first pressurization device 4 before being input into the functional water generating unit 2, considering the noise factors during the operation of the refrigeration unit and the first pressurization device 4, as well as the relatively large weight of the first water storage unit 1, the refrigeration unit, the first water storage unit 1, the functional water generating unit 2, and the first pressurization device 4, they can be located at the lower part of the water supply device. This makes the entire water supply device more stable and reduces noise transmission to the user's water intake point in the middle of the water supply device. The second water storage unit 20 can be located at the upper part of the water supply device, and the third water storage unit 29 is located between the second water storage unit 20 and the first water storage unit 1, the functional water generating unit 2, and the first pressurization device 4. In this way, the second water storage unit 20 can directly replenish the first water storage unit 1 and the third water storage unit 29 by gravity. Since the water supply circuit 5 of the first water storage unit is connected to the water output mechanism 26, which is generally located near the middle of the water supply device, it is convenient for users to take water. Therefore, the water supply path 5 of the first water storage unit passes around the third water storage unit 29. In the above situation, when the third water storage unit 29 contains heated hot water, and the water supply device does not output water from the first water storage unit 1 for an extended period, the water supply path 5 of the first water storage unit will naturally heat up and its temperature will rise due to the influence of the third water storage unit 29. The technical solution in this application particularly solves the problems arising from the above-mentioned structure.

[0140] Furthermore, to improve the internal safety of the water supply device, the components inside the water supply device can be arranged with water and electricity separated. That is, the power supply lines for each component are located on one side of the water supply device, while other water-related components are located on the other side. In this application, this can be specifically as follows: the power supply lines for the cooling unit, the first pressurization device 4, and the third water storage unit 29 are located on one side of the water supply device. The first water storage unit water supply path 5, the first water storage unit 1, the second water storage unit 20, and the third water storage unit 29 are located on the other side of the water supply device relative to the power supply lines. Here, "one side" and "the other side" can be understood as the left or right side of the water supply device when the user faces it. Considering the water and electricity separation arrangement, when the first water storage unit water supply path 5 is connected to the water output mechanism 26, the first water storage unit water supply path 5 itself is a water-related component, and it passes near the third water storage unit 29, making it impossible to arrange it on the side of the power supply lines. Therefore, the temperature rise of the first water storage unit water supply circuit 5 after being left unused for a long time is quite severe due to the influence of the third water storage unit 29. If the technical solution in this application is not adopted, the water temperature output by the first water storage unit water supply circuit will be too high when it starts supplying water after the water supply device has been unused for a long time, which seriously does not meet the user's requirements for water temperature and results in a particularly bad user experience.

[0141] As a feasible option, such as Figure 1 As shown, the water supply device may include a first filter element 12 and a first connecting water passage 13. The outlet of the first filter element 12 can be connected to the first water storage unit 1. The outlet of the first booster device 4 can be connected to the inlet of the first filter element 12 through the first connecting water passage 13. The inlet of the first filter element 12 can be connected to a water source. Water input into the water supply device is filtered by the first filter element 12 before being input into the first water storage unit 1. Therefore, the first filter element 12 is located upstream of the first water storage unit 1. The first filter element 12 can be a filter unit capable of filtering water to improve water quality.

[0142] In this embodiment, the water supply device can have a fourth state and a fifth state. When the water supply device also includes a second water passage 6, in the fourth state, the outlet of the first booster device 4 is connected to the inlet of the first filter element 12, the outlet of the first booster device 4 is disconnected from the inlet of the functional water generating unit 2, the first booster device 4 is in an open state, and the outlet of the first booster device 4 is connected to the inlet of the first filter element 12. When the water supply device also includes a second water passage 6 and a third water passage 7, in the fourth state, the outlet of the first booster device 4 is disconnected from the third water passage 7, the outlet of the first booster device 4 is disconnected from the inlet of the functional water generating unit 2, the inlet of the first booster device 4 is connected to the second water passage 6 and / or the first water passage 3 connecting to the first water storage unit 1, the first booster device 4 is in an open state, and the outlet of the first booster device 4 is connected to the inlet of the first filter element 12. When the water supply device also includes a second water path 6, in the fifth state, the outlet of the first booster device 4 is disconnected from the inlet of the first filter element 12, the outlet of the first booster device 4 is connected to the inlet of the functional water generating unit 2, the first booster device 4 is in the open state, and the outlet of the first booster device 4 is disconnected from the inlet of the first filter element 12; when the water supply device also includes a second water path 6 and a third water path 7, in the fifth state, the outlet of the first booster device 4 is disconnected from the third water path 7, the outlet of the first booster device 4 is connected to the inlet of the functional water generating unit 2, the inlet of the first booster device 4 is connected to the second water path 6 and / or the first water path 3 connected to the first water storage unit 1, the first booster device 4 is in the open state, and the outlet of the first booster device 4 is disconnected from the inlet of the first filter element 12.

[0143] To achieve the above objectives, the outlet of the first booster device 4 can switch between the inlet of the first filter element 12 and the functional water generation unit 2. For example, when the water supply device may include a first water path switching unit, the first water path switching unit may also have a fourth port connected to the first connecting water path 13. Alternatively, the first water path switching unit may also have a sixth valve 21 located in the first connecting water path 13. A second check valve 18 may also be provided on the first connecting water path 13, which allows the outlet of the first booster device 4 to flow towards the inlet of the first filter element 12.

[0144] Before the first pressurization device 4 supplies water to the functional water generation unit 2, the water supply device can be switched to the fourth state. Water that has been stored in the first pressurization device 4 for a long time is then introduced into the inlet of the first filter element 12 via the first connecting water passage 13 for filtration to improve the quality of the stored water. The water then flows back into the first water storage unit 11. This process reduces water waste. Afterward, the water supply device is switched to the fifth state, and water from the first water storage unit 1 is introduced into the functional water generation unit 2 via the first pressurization device 4. This structure improves the quality of the water introduced into the functional water generation unit 2 via the first pressurization device 4, preventing water that has been stored in the first pressurization device 4 for a long time and whose quality has deteriorated from affecting the functional water generation unit 2. This ensures the quality of the functional water output by the functional water generation unit 2 and improves the user's experience when drinking functional water.

[0145] In the above structure, the water supply device may include a water purification unit for purifying the inlet water of the first water storage unit 1. In one feasible embodiment, the water purification unit may include a pre-filter 15 and a post-filter 121 arranged sequentially along the water flow direction. The first filter 12 may include at least the post-filter 121. In this embodiment, as feasible, the pre-filter 15 may be a pre-filter unit that performs primary purification of the inlet water. The post-filter 121 may be a main filter unit and / or a post-filter unit that performs fine filtration of the inlet water. When the post-filter 121 includes both the main filter unit and the post-filter unit, the post-filter unit is located downstream of the main filter unit, and the outlet of the first pressurization device 4 can be connected upstream of the inlet of the post-filter unit through the first connecting water passage 13.

[0146] In this embodiment, as a feasible option, Figure 4 This is a schematic diagram of the water supply device in the fourth embodiment of the present invention, as shown below. Figure 4 As shown, the water supply device may include: a second booster device 16, which can be connected upstream of the post-filter 121; and a second connecting water passage 17, through which the outlet of the first booster device 4 can be connected to the upstream of the inlet of the second booster device 16. A seventh valve 31 may be provided on the second connecting water passage 17 to control its opening and closing. When the first booster pump is running for the first time and needs to expel internal air, the outlet of the first booster pump can be connected upstream of the inlet of the second booster device 16 through the second connecting water passage 17, and the second booster device 16 will be activated, thereby drawing water from the first water storage unit 1 into the first booster device 4 and simultaneously expelling air from the first booster device 4.

[0147] Furthermore, Figure 5 This is a schematic diagram of the water supply device in the fifth embodiment of the present invention, as shown below. Figure 5As shown, a sixth valve 21 and a second check valve 18 located downstream of the sixth valve 21 are provided on the first connecting water passage 13. The second check valve 18 allows the outlet of the first booster device 4 to flow towards the inlet of the first filter element 12. The water supply device may include a second connecting water passage 17. One end of the second connecting water passage 17 is connected upstream of the inlet of the second booster device 16, and the other end of the second connecting water passage 17 is connected between the sixth valve 21 and the second check valve 18. A third check valve 19 is provided on the second connecting water passage 17, which allows the outlet of the first booster device 4 to flow upstream of the inlet of the second booster device 16. The above structure simplifies the structure of the water supply device and reduces the number of valves used.

[0148] In another feasible implementation, the water purification unit may include a first filter element 12.

[0149] In all the above embodiments, as feasible, the water supply device may include: a functional water generation unit water supply circuit 24. The functional water generation unit water supply circuit 24 is connected to the functional water generation unit 2, and a fourth outlet control valve 25 is provided on the functional water generation unit water supply circuit 24. When the fourth outlet control valve 25 is opened, the functional water in the functional water generation unit 2 can be output to the user. A water output mechanism 26 can be connected to the functional water generation unit water supply circuit 24. Water output from the functional water generation unit water supply circuit 24 passes through the water output mechanism 26 and is sterilized by an ultraviolet sterilization unit before being supplied to the user. This method can reduce the amount of bacteria in the output functional water. The water output mechanism 26 can be a faucet-like device or a water outlet pipe, etc.

[0150] Because the first pressurization device 4 contains many water-contacting components made of various materials, when the device is not in operation, the water inside remains in constant contact with these components. Over time, some of these materials release trace amounts of their own components. When the device is restarted, these trace amounts are released into the functional water generation unit 2. Since the water supply device has an ultraviolet sterilization unit within the water output mechanism 26 to sterilize the water flowing through it, when the functional water containing these trace amounts is output through the mechanism, these components are exposed to ultraviolet light. This exposure causes them to emit an unpleasant odor, resulting in a poor user experience when drinking the functional water.

[0151] In particular, the first pressurization device 4 needs to be sealed or pressurize water, which means that the water-contacting components of the first pressurization device 4 may be made of one of the following materials: EPDM (ethylene propylene diene monomer rubber), PPS (polyphenylene sulfide), PVC (polyvinyl chloride), etc. Studies have found that water-contacting components made of the above-mentioned materials will release substances into the water under long-term contact with water, and these substances will emit an unpleasant odor after being exposed to ultraviolet light.

[0152] To address the aforementioned issues, the water supply device in this application utilizes the first connecting water passage 13 to input the long-stored water from the first pressurizing device 4 to the inlet of the first filter element 12. After being filtered by the first filter element 12 to remove the aforementioned substances, the water flows back to the first water storage unit 1. Then, the water from the first water storage unit 1 is input to the functional water generating unit 2 via the first pressurizing device 4. This method prevents substances released from the water-contacting components of the first pressurizing device 4 from entering the functional water generating unit 2. Consequently, when the functional water is supplied to the user, the functional water will not emit an unpleasant odor after being exposed to ultraviolet light through the water output mechanism 26, thus improving the user's drinking experience.

[0153] Furthermore, the post-filter 121 may include an activated carbon filtration unit and / or a microfiltration unit and / or a reverse osmosis membrane filtration unit and / or a nanofiltration membrane filtration unit and / or an ultrafiltration filtration unit, etc. When the post-filter 121 can be a main filtration unit and / or a post-filtration unit for fine filtration of the feed water, the post-filtration unit may be an activated carbon filtration unit, and the main filtration unit may be a microfiltration unit and / or a reverse osmosis membrane filtration unit and / or a nanofiltration membrane filtration unit and / or an ultrafiltration filtration unit, etc. Any filtration unit capable of removing the aforementioned substances can be used in this application, including activated carbon filtration units, microfiltration units, reverse osmosis membrane filtration units, nanofiltration membrane filtration units, and ultrafiltration units, all of which can remove the aforementioned substances during filtration.

[0154] In another feasible implementation, when the water purification unit includes a first filter element 12, the first filter element 12 may include an activated carbon filter element and / or a microfiltration filter element and / or a reverse osmosis membrane filter element and / or a nanofiltration membrane filter element and / or an ultrafiltration filter element, etc.

[0155] When the post-filter 121 includes a main filter unit and a post-filter unit, such as Figures 1 to 5 As shown, the post-filter unit is located downstream of the main filter unit, and a seventh check valve 50 can be connected between the two, which enables the purified water outlet of the main filter unit to flow towards the inlet of the post-filter unit.

[0156] When the post-filter element 121 includes a main filter unit, if the main filter unit needs to discharge wastewater during filtration, the wastewater outlet of the main filter unit is connected to a wastewater discharge path. The wastewater discharge path can be equipped with a series-connected wastewater ratio unit and an on / off valve, and can also include a sixth check valve. The sixth check valve allows the wastewater outlet of the main filter unit to flow towards the outlet of the wastewater discharge path. An inlet valve 46 can be connected upstream of the water purification unit, and the inlet valve 46 is then connected to a water source, controlling the flow between the water source and the water supply device.

[0157] In all the above embodiments, such as Figures 1 to 5 As shown, the water supply device may include a third water passage 7, one end of which can be connected to the outlet of the first booster device 4, and the other end of which can be connected to the first water storage unit 1. An eighth valve 45 may be installed on the third water passage 7 to control its flow, and an eighth check valve 44 may also be installed, which allows the outlet of the first booster device 4 to flow towards the first water storage unit 1. The outlet of the third water passage 7 connected to the first water storage unit 1 may be located near the evaporator. This structure allows the water output from the third water passage 7 to flow towards the vicinity of the evaporator, ensuring continuous water flow on the evaporator surface and preventing icing. Before the water output from the third water passage 7 flows towards the vicinity of the evaporator after the first booster device 4 has been idle for a long time, the water output from the first booster device 4 can be filtered through the first filter element 12.

[0158] As a feasible option, such as Figures 1 to 5 As shown, the water supply device may include: a sixth water passage 53, one end of which can be connected to the outlet of the first booster device 4, and the other end of the second water passage 6 can be connected to the second water storage unit 20. A ninth valve 54 is provided on the second water passage 6. When it is necessary to cool the water in the second water storage unit 20, the first booster device 4 can be turned on, and the ninth valve 54 can be turned on. The water in the first water storage unit 1 and the second water storage unit 20 will circulate, and the cold water in the first water storage unit 1 can be circulated to the second water storage unit 20. In this way, the water supply device can provide a large amount of cold water at one time, and the amount of cold water can be much greater than the capacity of the first water storage unit 1.

[0159] In one feasible embodiment, the functional water supply device may include a first water storage tank with an inner cavity. The first water storage tank has an isolation section that divides the inner cavity into independent first and second spaces. The first water storage unit 1 includes the first space, and the functional water generation unit 2 includes the second space. Furthermore, the isolation section may be made of a material with good thermal conductivity, such as metal, so that the cooling energy of the water in the first water storage unit 1 can be transferred to the functional water generation unit 2, thereby insulating the cold water in the functional water generation unit 2 and preventing it from overheating. This method allows the refrigeration unit to directly cool the water in the first water storage unit 1.

[0160] In another feasible embodiment, the functional water supply device may include: a first water storage tank having an inner cavity and a second water storage tank at least partially disposed within the first water storage tank. The gap between the first and second water storage tanks forms a first water storage unit 1, and the functional water generation unit 2 includes the second water storage tank. Further, the sidewall of the second water storage tank may be disposed within the inner cavity of the first water storage tank, so that the first water storage tank can circumferentially surround the second water storage tank. When the water stored in the first water storage unit 1 is cold water, the cold water can provide better insulation for the second water storage tank, preventing the cold water input from the first water storage unit 1 into the second water storage tank from heating up. The sidewall of the second water storage tank may be made of a material with good thermal conductivity, such as metal. This improves both the pressure resistance of the second water storage tank and the thermal conductivity of the sidewall, facilitating the transfer of the coldness of the cold water stored in the first water storage unit 1 to the functional water in the second water storage tank.

[0161] like Figures 1 to 5As shown, the water supply device may include: a first drain water path 36, which is connected to the inlet of the water output mechanism 26, and a first drain control valve 37 may be installed on the first drain water path 36. When the first drain control valve 37 is opened, the water accumulated in the water output mechanism 26 can be drained. The water supply device may include: a second drain water path 38, which is connected to the functional water generation unit 2, and a second drain control valve 39 may be installed on the second drain water path 38. When the second drain control valve 39 is opened, the functional water in the functional water generation unit 2 can be drained. The water supply device may include: a third drain water path 40, which is connected to the first water storage unit 1, and a third drain control valve 41 may be installed on the third drain water path 40. When the third drain control valve 41 is opened, the water in the first water storage unit 1 can be drained. The water supply device may include: a fourth drain water path 42, which is connected to the third water storage unit 29. A fourth drain control valve 43 can be installed on the fourth drain water passage 42. When the fourth drain control valve 43 is opened, the water in the third water storage unit 29 can be drained. The third water storage unit 29 can be located above the second water storage unit 20. The third water storage unit 29 is connected to the bottom of the second water storage unit 20. When it is necessary to drain the water in the second water storage unit 20, the water in the second water storage unit 20 can be drained into the third water storage unit 29 by gravity, and then drained through the fourth drain water passage 42. The water supply device can include an overflow discharge water passage, which is connected to the upper part of the second water storage unit 20. When the water in the second water storage unit 20 exceeds a certain height, the excess water is discharged from the overflow discharge water passage. Alternatively, the outlets of the overflow discharge water passage, the fourth drain water passage 42, and the first drain water passage 36 can all be connected to the water collection tray of the water supply device to discharge water into the water collection tray, and then the water is discharged from the water collection tray.

[0162] This application also proposes a control method for a water supply device as described above, the control method including:

[0163] When the first preset condition is met, if the water supply device also includes a second water path 6, the outlet of the first booster device 4 is connected to the second water path 6, and the outlet of the first booster device 4 is disconnected from the first water path 3 of the water generation unit 2, and the first booster device 4 is turned on to enter the first state; or, when the first preset condition is met, if the water supply device also includes a second water path 6 and a third water path 7, the outlet of the first booster device 4 is connected to the third water path 7, the inlet of the first booster device 4 is connected to the second water path 6, and the outlet of the first booster device 4 is disconnected from the first water path 3 of the water generation unit 2, and the first booster device 4 is turned on to enter the first state.

[0164] In the above steps, the first preset condition includes at least one of the following: every first preset time interval, reaching a set time. For example, every preset time interval, the water supply device enters the first state, thereby replacing the water in the first water supply circuit 5 of the first water storage unit with water from the first water storage unit 1, which has undergone a significant temperature change, and altering the temperature of the water in the first water supply circuit 5 to slow down the rate of temperature change in subsequent water in the first water supply circuit 5. The set time can be a period of time when the user uses the water supply device less, thereby avoiding conflicts between the user taking water and the water supply device switching to the first state, minimizing the impact on the user. The set time can be at night or in the early morning. On the one hand, the noise generated by the water supply device will not affect the user. On the other hand, when the user may need to take water from the first water storage unit 1 in the morning, the water in the first water supply circuit 5 that has undergone a significant temperature change has been replaced, so the first cup of water output when the user takes water can be at a temperature close to that of the water in the first water storage unit 1.

[0165] In the first state, when the second preset condition is met, if the water supply device also includes a second water path 6, one end of the second water path 6 is disconnected from the outlet of the first booster device 4. If the water supply device also includes a second water path 6 and a third water path 7, the outlet of the first booster device 4 is disconnected from the third water path 7 and / or the inlet of the first booster device 4 is disconnected from the second water path 6.

[0166] In the above steps, the second preset condition can indicate that the temperature of the water supply circuit 5 of the first water storage unit has been basically changed, for example, it has been cooled down. Specifically, it can be that the preset time length has been reached, the flow rate in the water supply circuit 5 of the first water storage unit has reached the preset flow rate, or the temperature value of the water supply circuit 5 of the first water storage unit has reached the preset temperature, etc.

[0167] Since the user requires water from the first water storage unit 1, the water in the first water storage unit 1 has already flowed through the first water supply circuit 5 during the water extraction process, replacing the water in the first water supply circuit 5 and altering its temperature to some extent. The first preset condition may include a second preset time elapsed since the last time water from the first water storage unit 1 was extracted through the first water supply circuit 5. Alternatively, the second preset time may be shorter than the first preset time, thus reducing the frequency with which the water supply device switches to the first state.

[0168] As an option, when the water supply device also includes a second water path 6, when the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit 1, the power of the first booster device 4 is increased. When the third preset condition is met, one end of the second water path 6 is disconnected from the outlet of the first booster device 4, the first booster device 4 is turned off, and the first state is exited. Then, the water in the first water storage unit 1 is output through the first water storage unit water supply path 5.

[0169] In the above steps, if the water supply device is in the first state and the user needs to take water from the first water storage unit 1, the water supply device will not output water from the first water storage unit 1 to the user. Instead, it will increase the power of the first booster device 4 to change the temperature of the water supply circuit 5 of the first water storage unit in a shorter time. Then, the water in the first water storage unit 1 will be output through the water supply circuit 5 of the first water storage unit to the user.

[0170] As an option, when the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit 1, the water supply device is kept in the first state, and the water in the first water storage unit 1 is output through the first water storage unit water supply path 5. Then, when the fourth preset condition is met, one end of the second water path 6 is disconnected from the outlet of the first booster device 4.

[0171] In the above steps, if the water supply device enters the first state and the user needs to take water from the first water storage unit 1, the water supply device simultaneously changes the temperature of the water supply circuit 5 of the first water storage unit and outputs the water from the first water storage unit 1 through the water supply circuit 5 to the user. The fourth preset condition can indicate that the temperature of the water supply circuit 5 of the first water storage unit has been basically changed. Specifically, this can be reaching a preset time length, the flow rate in the water supply circuit 5 of the first water storage unit reaching a preset flow rate, or the temperature value of the water supply circuit 5 of the first water storage unit reaching a preset temperature, etc.

[0172] As an option, when the water supply device is in the first state, if a signal is received indicating that water needs to be output from the first water storage unit 1, the water supply device will exit the first state and output the water from the first water storage unit 1 through the first water storage unit water supply circuit 5. If the output of water from the first water storage unit 1 through the first water storage unit water supply circuit 5 does not meet the fifth preset condition, the water output from the first water storage unit 1 through the first water storage unit water supply circuit 5 will stop and the device will re-enter the first state. If the output of water from the first water storage unit 1 through the first water storage unit water supply circuit 5 meets the fifth preset condition, the water output from the first water storage unit 1 through the first water storage unit water supply circuit 5 will stop and the device will re-enter the first state when the first preset condition is met.

[0173] In the above steps, if the water supply device enters the first state and the user needs to take water from the first water storage unit 1, the water supply device exits the first state and stops changing the temperature of the water supply circuit 5 of the first water storage unit, immediately outputting the water from the first water storage unit 1 to the user through the water supply circuit 5. If the user's water-taking process from the first water storage unit 1 has essentially completed the temperature change of the water supply circuit 5, the water supply device will re-enter the first state after the user finishes taking water, provided the first preset condition is met. If the user's water-taking process from the first water storage unit 1 is short and does not allow the water supply circuit 5 of the first water storage unit to cool down sufficiently, the water supply device will re-enter the first state after the user finishes taking water, thus completing the temperature change of the water supply circuit 5 of the first water storage unit. Similarly, the fifth preset condition can indicate that the temperature of the water supply circuit 5 of the first water storage unit has been basically changed. Specifically, it can be that the preset time length has been reached, the flow rate in the water supply circuit 5 of the first water storage unit has reached the preset flow rate, or the temperature value of the water supply circuit 5 of the first water storage unit has reached the preset temperature, etc.

[0174] When the water supply device also includes a second water channel 6, the water supply device also includes a third water channel 7. One end of the third water channel 7 can be connected to the outlet of the first booster device 4, and the other end of the third water channel 7 can be connected to the first water storage unit 1. The water supply device has three states: a first state, a second state, and a third state. In the first state, the outlet of the first booster device 4 is connected to the second water passage 6, the outlet of the first booster device 4 is disconnected from the first water passage 3 of the connecting water generation unit 2, and the outlet of the first booster device 4 is disconnected from the third water passage 7; the first booster device 4 is in the open state. In the second state, the outlet of the first booster device 4 is disconnected from the third water passage 7, the outlet of the first booster device 4 is disconnected from the second water passage 6, and the outlet of the first booster device 4 is connected to the first water passage 3 of the connecting water generation unit 2; the first booster device 4 is in the open state. In the third state, the outlet of the first booster device 4 is connected to the third water passage 7, the outlet of the first booster device 4 is disconnected from the second water passage 6, and the outlet of the first booster device 4 is disconnected from the first water passage 3 of the connecting water generation unit 2; the first booster device 4 is in the open state.

[0175] When the water supply device also includes a second water path 6 and a third water path 7, the water supply device has a first state, a second state, and a third state. In the first state, the outlet of the first booster device 4 is connected to the third water path 7, the outlet of the first booster device 4 is disconnected from the first water path 3 of the functional water generation unit 2, the inlet of the first booster device 4 is connected to the second water path 6, and the first booster device 4 is in the open state. In the second state, the outlet of the first booster device 4 is disconnected from the third water path 7, the outlet of the first booster device 4 is connected to the first water path 3 of the functional water generation unit 2, the inlet of the first booster device 4 is connected to the second water path 6 and / or the first water path 3 of the first water storage unit 1, and the first booster device 4 is in the open state. In the third state, the outlet of the first booster device 4 is connected to the third water path 7, the outlet of the first booster device 4 is connected to the first water path 3 of the functional water generation unit 2, the inlet of the first booster device 4 is connected to the second water path 6 and / or the first water path 3 of the first water storage unit 1, and the first booster device 4 is in the open state.

[0176] Control methods may also include:

[0177] When the water level in the functional water generation unit 2 is lower than the preset amount, it enters the second state.

[0178] When the temperature of the water in the first water storage unit 1 is lower than the preset temperature, it enters the third state.

[0179] Entering the second state has a higher priority than entering the third state, and entering the third state has a higher priority than entering the first state.

[0180] The first booster device 4 in the water supply device prioritizes replenishing the functional water generation unit 2 with water.

[0181] When the refrigeration unit cools the water in the first water storage unit 1, if the temperature of the water in the first water storage unit 1 is lower than the preset temperature, in order to prevent the water near the evaporator of the refrigeration unit in the first water storage unit 1 from freezing during further cooling, the first pressurization device 4 then enters a third state. This causes the water output from the third water path 7 to flow towards the vicinity of the evaporator, allowing the water on the surface of the evaporator to flow continuously, thus preventing freezing on the evaporator surface. This method not only avoids conflicts in the water supply device under complex operating conditions but also prioritizes the three states, ensuring that the most important state is executed first.

[0182] This application also discloses a control method using the above-described water supply device, the control method including:

[0183] After the first booster device 4 has stopped operating for a first preset time length, before entering the fifth state, one end of the first connecting water passage 13 is connected to the outlet of the first booster device 4, and the first booster device 4 is turned on so that the water flowing out of the first booster device 4 is filtered through the first filter element 12.

[0184] The above control method can improve the quality of water input to the functional water generation unit 2 through the first pressurization device 4, preventing water that has been left in the first pressurization device 4 for a long time and whose quality has deteriorated from affecting the functional water generation unit 2, thereby ensuring the quality of the functional water output by the functional water generation unit 2 and improving the user's experience when drinking functional water. Furthermore, it can also prevent substances (EPDM (ethylene propylene diene monomer rubber), PPS (polyphenylene sulfide), PVC (polyvinyl chloride), etc.) released into the water from the water-contacting parts of the first pressurization device 4 from entering the functional water generation unit 2. As a result, when the functional water is supplied to the user by the functional water generation unit 2, the functional water will not emit an unpleasant odor after being exposed to ultraviolet light through the water output mechanism 26, thereby improving the user's experience when drinking functional water.

[0185] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0186] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water supply device, characterized in that, The water supply device includes: A first water storage unit and a functional water generation unit, wherein the functional water generation unit can be connected to the first water storage unit through a first water passage; A first booster device is installed on the first water path, and the first booster device is at least used to supply water from the first water storage unit to the functional water generation unit; The water supply circuit of the first water storage unit has one end connected to the first water storage unit and the other end connected to the outlet of the water supply device. The water supply device has at least a first state and a second state; The water supply device further includes: a second water path, one end of which is connected to the outlet of the first booster device, and the other end of which is connected to the water supply path of the first water storage unit, for causing at least a portion of the stored water in the water supply path of the first water storage unit to flow back to the first water storage unit under the action of the first booster device; in the first state, the outlet of the first booster device is connected to the second water path, and the outlet of the first booster device is disconnected from the first water path connecting to the functional water generation unit, and the first booster device is in an open state; in the second state, the outlet of the first booster device is disconnected from the second water path, and the outlet of the first booster device is connected to the first water path connecting to the functional water generation unit, and the first booster device is in an open state; or, The water supply device further includes a second water path and a third water path. One end of the third water path is connected to the first water storage unit, and the other end is connected to the outlet of the first booster device. One end of the second water path is connected to the inlet of the first booster device, and the other end is connected to the water supply path of the first water storage unit. This is used to allow at least a portion of the stored water in the water supply path of the first water storage unit to flow back to the first water storage unit under the action of the first booster device. In the first state, the outlet of the first booster device is connected to the third water path, the inlet of the first booster device is connected to the second water path, and the outlet of the first booster device is disconnected from the first water path connecting to the functional water generation unit; the first booster device is in an open state. In the second state, the outlet of the first booster device is disconnected from the third water path, and the outlet of the first booster device is connected to the first water path connecting to the functional water generation unit; the first booster device is in an open state.

2. The water supply device according to claim 1, characterized in that, When the water supply device further includes the second water path The other end of the second waterway can be connected to the end of the water supply waterway of the first water storage unit that is away from the first water storage unit.

3. The water supply device according to claim 1, characterized in that, When the water supply device further includes the second water path The other end of the second water path can be connected to the end of the water supply path of the first water storage unit that is close to the first water storage unit. The water supply device also includes a fourth water path, one end of which can be connected to the end of the water supply path of the first water storage unit that is far from the first water storage unit, and the other end of which can be connected to the first water storage unit.

4. The water supply device according to claim 3, characterized in that, A first on / off valve or a first one-way valve is provided on the water supply line of the first water storage unit. The first on / off valve or the first one-way valve is located between the other end of the second water line and the connection point of the water supply line of the first water storage unit and the first water storage unit. The first one-way valve enables the first water storage unit to conduct to the connection point of the other end of the second water line and the water supply line of the first water storage unit.

5. The water supply device according to claim 1, characterized in that, When the water supply device further includes the second water path and the third water path, the other end of the second water path is connected to the end of the water supply path of the first water storage unit that is away from the first water storage unit.

6. The water supply device according to claim 2 or 5, characterized in that, A first outlet control valve is provided on the water supply line of the first water storage unit. The other end of the second water line is close to the first outlet control valve and located upstream of the first outlet control valve at the connection point between the second water line and the water supply line of the first water storage unit.

7. The water supply device according to claim 6, characterized in that, A flow-limiting control unit is installed on the water supply line of the first water storage unit; The flow limiting control unit is located downstream of the connection point between the second waterway and the water supply waterway of the first water storage unit.

8. The water supply device according to claim 1, characterized in that, When the water supply device further includes the second water path, the water supply device further includes: a first water path switching unit having a first port, a second port and a third port, wherein the first water path switching unit is capable of controlling the connection and disconnection between the first port and the second port, and between the first port and the third port; The first port is connected to the outlet of the first booster device, the second port is connected to the first water passage connecting the functional water generation unit, and the third port is connected to the second water passage. or, When the water supply device further includes the second water path and the third water path, the water supply device further includes: a first water path switching unit having a first port, a second port, and a third port, and a second water path switching unit having a fourth port, a fifth port, and a sixth port. The first water path switching unit is capable of controlling the connection and disconnection between the first port and the second port, and between the first port and the third port; the second water path switching unit is capable of controlling the connection and disconnection between the fourth port and the fifth port, and between the fourth port and the sixth port. The first port is connected to the outlet of the first pressurization device, the second port is connected to the first water passage connecting the functional water generation unit, and the third port is connected to the third water passage; The fourth port is connected to the inlet of the first booster device, the fifth port is connected to the first water passage connecting the first water storage unit, and the sixth port is connected to the second water passage.

9. The water supply device according to claim 1, characterized in that, The water supply device also includes: A refrigeration unit for cooling the water in the first water storage unit; The second water storage unit is connected to the first water storage unit through the fifth water passage; A third water storage unit capable of heating water, which can be connected to the second water storage unit; The second water storage unit is located at the upper part of the water supply device; the first water storage unit, the functional water generating unit, and the first pressurizing device are located at the lower part of the water supply device; in the height direction, the third water storage unit is located between the second water storage unit and the first water storage unit, the functional water generating unit, and the first pressurizing device; the water supply path of the first water storage unit passes around the third water storage unit.

10. The water supply device according to claim 9, characterized in that, The power supply line for supplying power to the refrigeration unit, the first pressurization device, and the third water storage unit is located on one side of the water supply device, while the water supply circuit of the first water storage unit, the first water storage unit, the second water storage unit, and the third water storage unit are located on the other side of the water supply device relative to the power supply line.

11. The water supply device according to claim 1, characterized in that, The water supply device also includes: The first filter element and the first connecting water passage are connected. The outlet of the first filter element can be connected to the first water storage unit, and the outlet of the first booster device can be connected to the inlet of the first filter element through the first connecting water passage.

12. The water supply device according to claim 11, characterized in that, The first filter element is located upstream of the first water storage unit.

13. The water supply device according to claim 12, characterized in that, The water supply device further includes a water purification unit for purifying the water entering the first water storage unit, the water purification unit including a pre-filter and a post-filter arranged sequentially along the water flow direction; The first filter element includes at least a post-filter element.

14. The water supply device according to claim 13, characterized in that, The post-filtration unit includes an activated carbon filtration unit and / or a microfiltration unit and / or a reverse osmosis membrane filtration unit and / or a nanofiltration membrane filtration unit and / or an ultrafiltration filtration unit.

15. The water supply device according to claim 13, characterized in that, The water supply device includes: a second booster device connected upstream of the post-filter; and a second connecting water passage, wherein the outlet of the first booster device can be connected upstream of the inlet of the second booster device through the second connecting water passage.

16. The water supply device according to claim 12, characterized in that, The water supply device further includes a water purification unit for purifying the inlet water of the first water storage unit. The water purification unit includes the first filter element, which includes an activated carbon filter element and / or a microfiltration filter element and / or a reverse osmosis membrane filter element and / or a nanofiltration membrane filter element and / or an ultrafiltration filter element.

17. The water supply device according to claim 13 or 16, characterized in that, A second water storage unit is connected between the outlet of the water purification unit and the first water storage unit, and a second sterilization device is installed in the second water storage unit.

18. The water supply device according to claim 17, characterized in that, The water supply device further includes a refrigeration unit, which is used to cool the water in the first water storage unit.

19. The water supply device according to claim 12, characterized in that, The water supply device has at least a fourth state and a fifth state. In the fourth state, the outlet of the first pressurizing device is connected to the inlet of the first filter element, the outlet of the first pressurizing device is disconnected from the inlet of the functional water generating unit, and the first pressurizing device is in the open state. In the fifth state, the outlet of the first pressurizing device is disconnected from the inlet of the first filter element, and the outlet of the first pressurizing device is connected to the inlet of the functional water generating unit, and the first pressurizing device is in the open state.

20. The water supply device according to claim 1, characterized in that, The first booster device is a diaphragm pump, and at least one water-contacting component of the diaphragm pump is made of one of the following materials: EPDM, PPS, or PVC.

21. The water supply device according to claim 20, characterized in that, The water supply device also includes: The third water passage has one end connected to the outlet of the first pressurizing device and the other end connected to the first water storage unit. A first sterilization device for sterilizing water in a first water storage unit.

22. The water supply device according to claim 1 or 20, characterized in that, The water supply device also includes: A water supply circuit for the functional water generation unit is provided, which can be connected to the functional water generation unit. A fourth water outlet control valve is provided on the water supply circuit for the functional water generation unit. A water output mechanism is connected to the water supply circuit of the functional water generation unit. The water output mechanism is equipped with an ultraviolet sterilization unit for sterilizing the water flowing through it.

23. The water supply device according to claim 1, characterized in that, The water supply device also includes: The second water storage unit is connected to the first water storage unit through the fifth water passage; The water supply circuit of the second water storage unit can be connected to the second water storage unit; A third water storage unit capable of heating water, which can be connected to the second water storage unit; The water supply circuit of the third water storage unit can be connected to the third water storage unit; The first water storage unit is equipped with a first water outlet control valve on its water supply line, the second water storage unit is equipped with a second water outlet control valve on its water supply line, and the third water storage unit is equipped with a third water outlet control valve on its water supply line.

24. A control method employing the water supply device as described in claim 1, characterized in that, The control method includes: When the first preset condition is met, if the water supply device further includes a second water path, the outlet of the first booster device is connected to the second water path, the outlet of the first booster device is disconnected from the first water path of the water generation unit, and the first booster device is turned on to enter the first state. When the water supply device further includes the second water path and the third water path, the outlet of the first booster device is connected to the third water path, the inlet of the first booster device is connected to the second water path, and the outlet of the first booster device is disconnected from the first water path that connects to the functional water generation unit; the first booster device is turned on to enter the first state. The first preset condition includes at least one of the following: every first preset time interval, reaching a set time; In the first state, when the second preset condition is met, if the water supply device further includes a second water path, one end of the second water path is disconnected from the outlet of the first booster device. If the water supply device further includes the second water path and the third water path, the outlet of the first booster device is disconnected from the third water path and / or the inlet of the first booster device is disconnected from the second water path.

25. The control method according to claim 24, characterized in that, The first preset condition also includes: a second preset time has elapsed since the last time water in the first water storage unit was output through the water supply circuit of the first water storage unit.

26. The control method according to claim 24, characterized in that, The control method further includes: When the water supply device further includes a second water path, when the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the power of the first booster device is increased. When the third preset condition is met, one end of the second water path is disconnected from the outlet of the first booster device, the first booster device is turned off, and the first state is exited. Then, the water in the first water storage unit is output through the first water storage unit water supply path.

27. The control method according to claim 24, characterized in that, The control method further includes: When the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the water supply device is kept in the first state, and the water in the first water storage unit is output through the water supply path of the first water storage unit. Then, when the fourth preset condition is met, one end of the second water path is disconnected from the outlet of the first booster device.

28. The control method according to claim 24, characterized in that, When the water supply device is in the first state, if a signal is received that water needs to be output from the first water storage unit, the water supply device will exit the first state and the water in the first water storage unit will be output through the water supply circuit of the first water storage unit. If the water output from the first water storage unit through the water supply circuit of the first water storage unit does not meet the fifth preset condition, then the water in the first water storage unit will return to the first state after the water output from the first water storage unit through the water supply circuit of the first water storage unit stops. If the water in the first water storage unit is output through the water supply circuit of the first water storage unit and meets the fifth preset condition, then after the water in the first water storage unit stops being output through the water supply circuit of the first water storage unit, it will re-enter the first state when the first preset condition is met.

29. The control method according to claim 24, characterized in that, When the water supply device further includes a second water path, the water supply device further includes a third water path, one end of which can be connected to the outlet of the first booster device, and the other end of which can be connected to the first water storage unit. The water supply device has a first state, a second state, and a third state. In the first state, the outlet of the first booster device is connected to the second water passage, the outlet of the first booster device is disconnected from the first water passage connecting the functional water generation unit, the outlet of the first booster device is disconnected from the third water passage, and the first booster device is in the open state. In the second state, the outlet of the first booster device is disconnected from the third water passage, the outlet of the first booster device is disconnected from the second water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, and the first booster device is in the open state. In the third state, the outlet of the first pressurizing device is connected to the third water passage, the outlet of the first pressurizing device is disconnected from the second water passage, and the outlet of the first pressurizing device is disconnected from the first water passage connecting to the functional water generating unit; the first pressurizing device is in the open state. When the water supply device further includes a second water path and a third water path, the water supply device has a first state, a second state and a third state. In the first state, the outlet of the first booster device is connected to the third water path, the outlet of the first booster device is disconnected from the first water path that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water path, and the first booster device is in the open state. In the second state, the outlet of the first booster device is disconnected from the third water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water passage and / or the first water passage that connects to the first water storage unit, and the first booster device is in the open state. In the third state, the outlet of the first booster device is connected to the third water passage, the outlet of the first booster device is connected to the first water passage that connects to the functional water generation unit, the inlet of the first booster device is connected to the second water passage and / or the first water passage that connects to the first water storage unit, and the first booster device is in the open state. The control method may further include: When the water level in the functional water generation unit is lower than a preset amount, it enters the second state; When the temperature of the water in the first water storage unit is lower than the preset temperature, it enters the third state; The priority of entering the second state is higher than the priority of entering the third state, and the priority of entering the third state is higher than the priority of entering the first state.

30. A control method for a water supply device as described in claim 11, characterized in that, The water supply device has a fifth state. When the water supply device further includes a second water path, in the fifth state, the outlet of the first booster device is disconnected from the second water path, the outlet of the first booster device is connected to the inlet of the functional water generating unit, the first booster device is in an open state, and the outlet of the first booster device is disconnected from the inlet of the first filter element. When the water supply device further includes a second water path and a third water path, in the fifth state, the outlet of the first booster device is disconnected from the third water path, the outlet of the first booster device is connected to the inlet of the functional water generating unit, the inlet of the first booster device is connected to the second water path and / or the first water path connecting to the first water storage unit, the first booster device is in an open state, and the outlet of the first booster device is disconnected from the inlet of the first filter element. The control method includes: After the first booster device has stopped operating for a first preset time period, before entering the fifth state, one end of the first water connection is connected to the outlet of the first booster device, and the first booster device is turned on so that the water flowing out of the first booster device is filtered through the first filter element.

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