Drinking water system capable of providing drinking water with various temperatures

Abstract

The utility model relates to a drinking water system capable of providing drinking water with various temperatures. The drinking water system comprises a water temperature and flow sensing unit, a water outlet control module and a water mixing unit. The drinking water system controls and receives the flow of normal-temperature water flowing out of the cooling unit through a proportional valve and controls and receives the flow of hot water flowing out of the heating unit through a hot water pump. When a user sets a specific temperature which is not the highest temperature preset by the system in the drinking water system, the water outlet control module opens water to the cooling unit and the heating unit at the same time, and the drinking water system controls the flow of normal-temperature water and hot water according to the specific temperature and the temperature and flow of water in the water inlet pipeline detected by the water temperature and flow sensing unit. Therefore, the normal-temperature water and the hot water are subsequently mixed into drinking water with the specific temperature.

Description

Technical Field

[0001] The utility model relates to a drinking water system, in particular to a drinking water system which can provide drinking water at various temperatures. Background Art

[0002] Most of the water dispensers on the market can only provide room temperature water and high-temperature hot water close to the boiling point (such as 98°C hot water). If users need to drink lower temperature warm water (such as 60°C warm water), they need to mix room temperature water and hot water by themselves, which is very inconvenient in daily use. Although some water dispensers can provide warm water of a specific temperature in addition to room temperature water and high temperature hot water, the water temperature selection is still limited. In addition, because traditional water dispensers cannot predict the temperature and flow of tap water in advance, they can only pre-set the hypothetical tap water temperature and flow, which usually causes the final hot water temperature to be very different from the water temperature set by the user. For example, the user chooses 60°C warm water to drink, but the water dispenser actually supplies drinking water at 50°C or 70°C. It is very inconvenient to use and the drinking experience is not good.

[0003] In view of this, how to propose an improved drinking water supply system to address the many problems existing in conventional drinking water machines is an urgent need and benefit to the industry and users. Utility Model Content

[0004] Therefore, an embodiment of the utility model provides a drinking water system that can provide drinking water at various temperatures, comprising: a water temperature and flow rate sensing unit, which is installed on a water inlet pipe to sense the temperature and flow rate of water flowing through the water inlet pipe; a water outlet control module, which receives water flowing out of the water inlet pipe passing through the water temperature and flow rate sensing unit, and controls to determine the water outlet to the cooling unit and / or the heating unit; and a mixing water unit, which includes a hot water pump and a proportional valve, the hot water pump fluid is connected to the heating unit, and the proportional valve fluid is connected to the cooling unit, wherein the drinking water system controls the flow rate of normal temperature water flowing out of the cooling unit through the proportional valve, and controls the flow rate of hot water flowing out of the heating unit through the hot water pump.

[0005] Another embodiment of the utility model provides a drinking water system that can provide drinking water of various temperatures, comprising: a water temperature and flow rate sensing unit installed on a water inlet pipe to sense the temperature and flow rate of water flowing through the water inlet pipe; a water outlet control module receiving water flowing out of the water inlet pipe passing through the water temperature and flow rate sensing unit, and controlling to determine the water outlet to a cooling unit providing normal temperature water and / or a heating unit providing hot water; and a mixing water unit comprising a hot water pump and a proportional valve, wherein the hot water pump is fluidically connected to the heating unit, and the proportional valve is fluidically connected to the cooling unit; wherein when a user sets a specific temperature other than the highest temperature preset by the system in the drinking water system, the water outlet control module simultaneously starts to outlet water to the cooling unit and the heating unit, and the drinking water system controls the flow rates of normal temperature water and hot water according to the specific temperature and the temperature and flow rate of water in the water inlet pipe detected by the water temperature and flow rate sensing unit, so that the normal temperature water and the hot water are subsequently mixed into drinking water with a specific temperature.

[0006] In one embodiment, the water outlet control module has a cooling control valve and a heating control valve, and both the cooling control valve and the heating control valve are fluidically connected to the water temperature flow sensing unit to receive the normal temperature water flowing out of the water temperature flow sensing unit.

[0007] In one embodiment, the cooling unit has a normal temperature water pipeline, the normal temperature water pipeline fluid is connected to the cooling control valve of the water outlet control module, and the heating unit fluid is connected to the heating control valve of the water outlet control module and heats the normal temperature water flowing out of the heating control valve.

[0008] In one embodiment, the mixed water unit further includes a hot water control valve and a mixed water control valve, wherein the hot water control valve is fluidically connected to the hot water pump to control the flow of water flowing out of the hot water pump, and the mixed water control valve is fluidically connected to the proportional valve to control the flow of water flowing out of the proportional valve.

[0009] In one embodiment, the drinking water system further comprises: a water inlet unit, which provides room temperature water to the water inlet pipeline; and a water outlet unit, which is fluidically connected to the cooling unit and the mixing water unit.

[0010] In one embodiment, when the user sets the highest temperature for hot water, the cooling control valve of the water outlet control module is closed, and the heating control valve is opened to allow room temperature water to flow into the heating unit for heating, and then flow out to the water outlet unit through the opened hot water control valve.

[0011] In one embodiment, when the user sets a specific temperature in the drinking water system, the cooling control valve of the water outlet control module is opened, so that normal temperature water can flow into the mixed water unit through the normal temperature water pipeline.

[0012] In one embodiment, the cooling unit further includes a normal temperature water control valve, which is fluidically connected to the normal temperature water pipeline to control the flow of normal temperature water. When the user wants to drink normal temperature water, the heating control valve of the water outlet control module is closed, and the cooling control valve is opened to allow normal temperature water to flow into the normal temperature water pipeline of the cooling unit, and the normal temperature water control valve is also opened to allow normal temperature water to flow out to the water outlet unit (70) through the normal temperature water control valve.

[0013] In one embodiment, the cooling unit further includes a cooling water pipeline and a cooling water control valve. The cooling water pipeline fluid is connected to the cooling control valve of the water outlet control module, and the cooling water pipeline has a refrigeration module to cool the normal temperature water flowing out of the cooling control valve. The cooling water control valve fluid is connected to the cooling water pipeline to control the flow of cooled water. When the user wants to drink low-temperature cold water, the heating control valve and the normal temperature water control valve of the water outlet control module are closed, and the cooling control valve is opened to allow normal temperature water to flow into the cooling water pipeline of the cooling unit, and the normal temperature water is cooled by the refrigeration module, and then flows out to the water outlet unit through the opened cooling water control valve.

[0014] In one embodiment, the refrigeration module is a thermoelectric refrigeration chip.

[0015] In one embodiment, the refrigeration module is a compressor.

[0016] In one embodiment, the water temperature and flow rate sensing unit has a thermistor to sense the temperature of water.

[0017] In one embodiment, the proportional valve is a needle valve.

[0018] In one embodiment, the heating unit has a hot water tank to store the heated water and maintain its temperature.

[0019] In one embodiment, the water inlet unit has at least one filter module to filter water at room temperature.

[0020] In one embodiment, the water outlet unit includes at least one water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are only for illustrating selected embodiments rather than all possible implementations and are not intended to limit the scope of the present invention, wherein:

[0022] Figure 1 It is a schematic diagram of the configuration of a drinking water system that can provide drinking water at various temperatures according to an embodiment of the utility model.

[0023] Figure 2It is a schematic diagram of a proportional valve of a drinking water system capable of providing drinking water at various temperatures according to an embodiment of the utility model. DETAILED DESCRIPTION

[0024] See also Figure 1 , which is a schematic diagram of the configuration of a drinking water system that can provide drinking water at various temperatures according to an embodiment of the utility model. Figure 1 As shown, the drinking water system for providing drinking water at various temperatures includes a water inlet unit 10, a water temperature flow sensing unit 20, a water outlet control module 30, a cooling unit 40, a heating unit 50, a mixing water unit 60, and a water outlet unit 70. The water inlet unit 10 has a water inlet pipe 12 to be connected to an external water source S, so that the external water source S can provide normal temperature water to the water inlet pipe 12. The water inlet unit 10 also has at least one filter module 11 to filter the normal temperature water in the water inlet pipe 12.

[0025] The water temperature flow sensing unit 20 is installed on the water inlet pipe 12. The water temperature flow sensing unit 20 has a thermistor 21 to sense the temperature of the normal temperature water flowing through the water inlet pipe 12. The water temperature flow sensing unit 20 also has a flow sensor 22 to sense the flow of the normal temperature water flowing through the water inlet pipe 12.

[0026] The water outlet control module 30 is connected to the water temperature flow sensing unit 20 to receive the normal temperature water flowing out of the water inlet pipe 12 flowing through the water temperature flow sensing unit 20. The water outlet control module 30 has a cooling control valve 31 and a heating control valve 32. The cooling control valve 31 is fluidically connected to the cooling unit 40, and the heating control valve 32 is fluidically connected to the heating unit 50, so that the water outlet control module 30 determines whether to discharge water to the cooling unit 40 and / or the heating unit 50 through the cooling control valve 31 and the heating control valve 32, and controls the water outlet. In some embodiments of the utility model, the cooling control valve 31 and the heating control valve 32 are both solenoid valves.

[0027] The cooling unit 40 has a normal temperature water pipeline 41, a normal temperature water control valve 42, a cooling water pipeline 43 and a cooling water control valve 44. Both the normal temperature water pipeline 41 and the cooling water pipeline 43 are fluidly connected to the cooling control valve 31 of the water outlet control module 30 to receive the water flowing out of the cooling control valve 31. The normal temperature water control valve 42 is fluidly connected to the normal temperature water pipeline 41 to control the flow of normal temperature water in the normal temperature water pipeline 41. The cooling water pipeline 43 has a refrigeration module 45 to cool the normal temperature water flowing out of the cooling control valve 31 of the water outlet control module 30. In some embodiments of the utility model, the refrigeration module 45 can be a thermoelectric refrigeration chip or a compressor, and the refrigeration module 45 has a temperature sensor (not shown) to monitor the temperature of the cooling water in the cooling water pipeline 43. The cooling water control valve 44 is fluidly connected to the cooling water pipeline 43 to control the flow of the cooled water in the cooling water pipeline 43. In some embodiments of the present invention, both the normal temperature water control valve 42 and the cooling water control valve 44 are solenoid valves.

[0028] The heating unit 50 is fluidically connected to the heating control valve 32 of the water outlet control module 30 to heat the normal temperature water flowing out of the heating control valve 32. The heating unit 50 has a hot water tank 51 to store the heated water and maintain its temperature. The hot water tank 51 has a temperature sensor (not shown) to monitor the temperature of the hot water in the hot water tank 51.

[0029] The mixing water unit 60 has a hot water pump 61, a hot water control valve 62, a proportional valve 63 and a mixing water control valve 64. The hot water pump 61 is fluidically connected to the hot water tank 51 of the heating unit 50, and the proportional valve 63 is fluidically connected to the normal temperature water pipeline 41 of the cooling unit 40. The hot water pump 61 controls the flow rate of hot water flowing out of the hot water tank 51 of the heating unit 50, and the proportional valve 63 controls the flow rate of normal temperature water flowing out of the normal temperature water pipeline 41 of the cooling unit 40. The hot water control valve 62 is fluidically connected to the hot water pump 61 to control the flow rate of water flowing out of the hot water pump 61. The mixing water control valve 64 is fluidically connected to the proportional valve 63 to control the flow rate of water flowing out of the proportional valve 63. Figure 2As shown, the proportional valve 63 is a needle valve device, which includes a water inlet 631, a water outlet 632, a control unit 633 and a needle valve assembly 634. In some embodiments of the present invention, the needle valve can be a needle valve device disclosed in the Chinese Taiwan Patent No. M631958, or other similar needle valve devices, so as to accurately control the flow rate of the normal temperature water received from the cooling unit 40. In some embodiments of the present invention, the hot water pump 61 is a brushless DC centrifugal water pump, such as the brushless DC centrifugal water pump (model: TL-B10; product number: TL-B10 / H / S / PWM-A24-0905) produced by Changsha Duopule Pump Technology Co., Ltd., or other similar brushless DC centrifugal water pumps. In some embodiments of the present invention, the hot water control valve 62 and the mixed water control valve 64 in the mixed water unit 60 are both solenoid valves.

[0030] The water outlet unit 70 is fluidly connected to the cooling unit 40 and the mixing water unit 60 and has at least one water outlet.

[0031] When the user sets the highest temperature hot water (such as hot water at 98°C close to the boiling point) as the outlet water temperature in the drinking water system, the cooling control valve 31 of the outlet water control module 30 is closed, and the heating control valve 32 is opened, so that the normal temperature water flows into the hot water tank 51 of the heating unit 50 through the water inlet pipe 12 for heating. After the heating is completed, the hot water pump 61 is activated to pump the hot water out of the hot water tank 51, and then flows out through the opened hot water control valve 62 to the water outlet of the water outlet unit 70 for the user to take.

[0032] When the user sets the normal temperature water as the outlet water temperature in the drinking water system, the heating control valve 32 of the outlet water control module 30 is closed, and the cooling control valve 31 is opened, so that the normal temperature water flows into the normal temperature water pipeline 41 of the cooling unit 40 through the water inlet pipeline 12. At this time, the proportional valve 63 is closed to prevent the normal temperature water from entering the mixed water unit 60. At the same time, the cooling water control valve 44 is closed, and the normal temperature water control valve 42 is opened, so that the normal temperature water can flow out through the normal temperature water control valve 42 to the water outlet of the water outlet unit 70 for the user to take.

[0033] When the user sets low-temperature cold water (lower than normal temperature water) as the water outlet temperature in the drinking water system, the heating control valve 32 of the water outlet control module 30 is closed, and the normal temperature water control valve 42 of the cooling unit 40 is also closed, while the cooling control valve 31 is opened to allow normal temperature water to flow into the cooling water pipeline 43 of the cooling unit 40, and the normal temperature water is cooled by the refrigeration module 45, and then flows out through the opened cooling water control valve 44 to the water outlet of the water outlet unit 70 for the user to take.

[0034] When the user sets a specific temperature of hot water (such as 90°C, 80°C, 70°C or 60°C) not preset by the system in the drinking water system, the cooling control valve 31 and the heating control valve 32 of the water outlet control module 30 are both opened, so that the normal temperature water can flow into the normal temperature water pipeline 41 of the cooling unit 40 and the hot water tank 51 of the heating unit 50 through the water inlet pipeline 12 to be heated. In this case, the drinking water system of the present invention controls the actuation power ratio of the hot water pump 61 and the opening ratio of the proportional valve 63 according to (1) the specific temperature set by the user in the drinking water system and (2) the temperature and flow rate of the normal temperature water in the water inlet pipeline 12 sensed by the water temperature and flow rate sensing unit 20, so as to control the flow rate of hot water flowing out of the hot water tank 51 and the flow rate of normal temperature water flowing through the proportional valve 63. At this time, the normal temperature water control valve 42 and the cooling water control valve 44 of the cooling unit 40 are both closed, so that water cannot flow out from the normal temperature water control valve 42 and the cooling water control valve 44, while the hot water control valve 62 and the mixed water control valve 64 are both opened, so that hot water and normal temperature water can be mixed into drinking water of a specific temperature set by the user that is not preset by the system, and flow out to the water outlet of the water outlet unit 70 for the user to take.

[0035] Please refer to Table 1 below, which is an exemplary embodiment of the drinking water system of the present invention for controlling the percentage of normal temperature water passing through the proportional valve 63 and the percentage of hot water passing through the hot water pump 61 for normal temperature water of different temperatures and flow rates, so as to obtain drinking water with the outlet temperature set by the user. For example, when the user sets to use 90°C drinking water, if the water temperature and flow sensing unit 20 of the drinking water system of the present invention senses that the temperature of the normal temperature water supplied from the external water source to the water inlet pipe 12 is 25°C and the flow rate is 2 liters / minute (LPM), then the proportional valve 63 is controlled to be partially opened to allow 10% of the normal temperature water to pass through, and the hot water pump 61 is controlled to operate to allow 70% of the hot water to pass through, so that the hot water after passing through is mixed with the normal temperature water to flow out as 90°C drinking water. For another example, when the user sets the use of 60°C drinking water, if the water temperature flow sensing unit 20 of the drinking water system in this case senses that the temperature of the normal temperature water supplied from the external water source to the water inlet pipe 12 is 15°C and the flow rate is 1 liter / minute (LPM), then the proportional valve 63 is controlled to be partially opened to allow 90% of the normal temperature water to pass through, and at the same time, the hot water pump 61 is controlled to operate to allow 50% of the hot water to pass through, so that the hot water after passing through is mixed with the normal temperature water to form 60°C drinking water that flows out of the drinking water system for the user to use.

[0036] Table 1

[0037]

[0038] Meanwhile, in the present invention and the drawings, several exemplary embodiments are disclosed, and specific terms are used. However, the terms are used only in a general sense to easily explain the technical content of the present invention and help the understanding of the present invention, but do not limit the scope of the present invention. In addition to the exemplary embodiments disclosed herein, other modifications based on the technical spirit of the present invention may also be implemented, which is obvious to those skilled in the art.

[0039] Explanation of symbols

[0040] 10: Water inlet unit

[0041] 11: Filter module

[0042] 12: Water inlet pipe

[0043] 20: Water temperature and flow sensing unit

[0044] 21: Thermistor

[0045] 22: Flow sensor

[0046] 30: Water outlet control module

[0047] 31: Cooling control valve

[0048] 32: Heating control valve

[0049] 40: Cooling unit

[0050] 41: Normal temperature water pipeline

[0051] 42: Normal temperature water control valve

[0052] 43: Cooling water pipeline

[0053] 44: Cooling water control valve

[0054] 45: Refrigeration module

[0055] 50: Heating unit

[0056] 51: Hot water tank

[0057] 60: Mixing water unit

[0058] 61: Hot water pump

[0059] 62: Hot water control valve

[0060] 63: Proportional valve

[0061] 631:Water inlet

[0062] 632: Water outlet

[0063] 633: Control Department

[0064] 634: Needle valve assembly

[0065] 64: Mixed water control valve

[0066] 70: Water outlet unit

[0067] S: External water source.

Claims

1. A drinking water system capable of providing drinking water at various temperatures, characterized in that: The drinking water system comprises: A water temperature and flow rate sensing unit (20) is installed on the water inlet pipeline (12) to sense the temperature and flow rate of water flowing through the water inlet pipeline (12); a water outlet control module (30) which receives water flowing out of the water inlet pipeline (12) through the water temperature and flow rate sensing unit (20) and controls the water outlet to determine whether to output the water to the cooling unit (40) and / or the heating unit (50); and A mixing water unit (60) comprising a hot water pump (61) and a proportional valve (63), wherein the hot water pump (61) is fluidically connected to the heating unit (50), and the proportional valve (63) is fluidically connected to the cooling unit (40). The drinking water system controls the flow rate of the normal temperature water flowing out of the cooling unit (40) through the proportional valve (63), and controls the flow rate of the hot water flowing out of the heating unit (50) through the hot water pump (61).

2. A drinking water system capable of providing drinking water at various temperatures, characterized in that: The drinking water system comprises: A water temperature and flow rate sensing unit (20) is installed on the water inlet pipeline (12) to sense the temperature and flow rate of water flowing through the water inlet pipeline (12); a water outlet control module (30) which receives water flowing out of the water inlet pipeline (12) through the water temperature flow sensing unit (20) and controls the water to be output to a cooling unit (40) for providing normal temperature water and / or a heating unit (50) for providing hot water; and A mixing water unit (60) comprising a hot water pump (61) and a proportional valve (63), wherein the hot water pump (61) is fluidically connected to the heating unit (50), and the proportional valve (63) is fluidically connected to the cooling unit (40). When a user sets a specific temperature in the drinking water system that is not the maximum temperature preset by the system, the water outlet control module (30) starts to outlet water to the cooling unit (40) and the heating unit (50) at the same time, and the drinking water system controls the flow rates of the normal temperature water and the hot water according to the specific temperature and the temperature and flow rate of the water in the water inlet pipeline (12) detected by the water temperature and flow rate sensing unit (20), so that the normal temperature water and the hot water are subsequently mixed into drinking water having a specific temperature.

3. The drinking water system according to claim 1 or 2, characterized in that: The water outlet control module (30) comprises a cooling control valve (31) and a heating control valve (32), and both the cooling control valve (31) and the heating control valve (32) are fluidically connected to the water temperature flow sensing unit (20) to receive the normal temperature water flowing out of the water temperature flow sensing unit (20).

4. The drinking water system according to claim 3, characterized in that: The cooling unit (40) has a normal temperature water pipeline (41), the normal temperature water pipeline (41) is fluidically connected to the cooling control valve (31) of the water outlet control module (30), and the heating unit (50) is fluidically connected to the heating control valve (32) of the water outlet control module (30) and heats the normal temperature water flowing out of the heating control valve (32).

5. The drinking water system according to claim 4, characterized in that: The mixed water unit (60) further comprises a hot water control valve (62) and a mixed water control valve (64), wherein the hot water control valve (62) is fluidically connected to the hot water pump (61) to control the flow of water flowing out of the hot water pump (61), and the mixed water control valve (64) is fluidically connected to the proportional valve (63) to control the flow of water flowing out of the proportional valve (63).

6. The drinking water system according to claim 5, characterized in that: The drinking water system further comprises: A water inlet unit (10) which provides water at room temperature to the water inlet pipeline (12); and A water outlet unit (70) is fluidically connected to the cooling unit (40) and the mixing water unit (60).

7. The drinking water system according to claim 6, characterized in that: When the user sets the highest temperature for hot water, the cooling control valve (31) of the water outlet control module (30) is closed, and the heating control valve (32) is opened to allow normal temperature water to flow into the heating unit (50) for heating, and then flow out to the water outlet unit (70) through the opened hot water control valve (62).

8. The drinking water system according to claim 4, characterized in that: When the user sets a specific temperature in the drinking water system, the cooling control valve (31) of the water outlet control module (30) is opened, allowing normal temperature water to flow into the mixed water unit (60) via the normal temperature water pipeline (41).

9. The drinking water system according to claim 6, characterized in that: The cooling unit (40) further comprises a normal temperature water control valve (42), wherein the normal temperature water control valve (42) is fluidically connected to the normal temperature water pipeline (41) to control the flow of the normal temperature water. When the user wants to drink normal temperature water, the heating control valve (32) of the water outlet control module (30) is closed, and the cooling control valve (31) is opened to allow normal temperature water to flow into the normal temperature water pipeline (41) of the cooling unit (40), and the normal temperature water control valve (42) is also opened to allow normal temperature water to flow out to the water outlet unit (70) through the normal temperature water control valve (42).

10. The drinking water system according to claim 9, characterized in that: The cooling unit (40) further comprises a cooling water pipeline (43) and a cooling water control valve (44); the cooling water pipeline (43) is fluidically connected to the cooling control valve (31) of the water outlet control module (30); the cooling water pipeline (43) has a refrigeration module (45) for cooling the normal temperature water flowing out of the cooling control valve (31); the cooling water control valve (44) is fluidically connected to the cooling water pipeline (43) for controlling the flow of cooled water; When the user wants to drink low-temperature cold water, the heating control valve (32) and the normal temperature water control valve (42) of the water outlet control module (30) are closed, and the cooling control valve (31) is opened to allow normal temperature water to flow into the cooling water pipeline (43) of the cooling unit (40), and the normal temperature water is cooled by the refrigeration module (45), and then flows out to the water outlet unit (70) through the opened cooling water control valve (44).

11. The drinking water system according to claim 10, characterized in that: The refrigeration module (45) is a thermoelectric refrigeration chip.

12. The drinking water system according to claim 10, characterized in that: The refrigeration module (45) is a compressor.

13. The drinking water system according to claim 1 or 2, characterized in that: The water temperature and flow rate sensing unit (20) has a thermistor (21) for sensing the temperature of water.

14. The drinking water system according to claim 1 or 2, characterized in that: The proportional valve (63) is a needle valve.

15. The drinking water system according to claim 1 or 2, characterized in that: The heating unit (50) has a hot water tank (51) for storing heated water and maintaining its temperature.

16. The drinking water system according to claim 6, characterized in that: The water inlet unit (10) has at least one filter module (11) for filtering water at normal temperature.

17. The drinking water system according to claim 6, characterized in that: The water outlet unit (70) comprises at least one water outlet.

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