Refrigeration water circulation system, control method thereof and water purifier

Abstract

The invention relates to a refrigeration water circulation system, a control method thereof and a water purifier. The refrigeration water circulation system comprises an evaporator assembly, a first water tank and a circulation mechanism. The first water tank comprises a tank body and a partition plate. The partition plate is arranged in the box body and divides the space in the box body into an ice water part and a cold water part. The circulating mechanism communicates with the evaporator assembly and the ice water part and is configured to drive the water flow to circularly flow between the ice water part and the evaporator assembly. According to the refrigeration water circulation system, the space in the box body can be divided into two parts by the partition plate, ice water and drinking cold water for ice making are separated, and the ice water and the drinking cold water are respectively provided with relatively independent spaces. Therefore, the amount of ice water is reduced, the ice water cooling difficulty is reduced, and the ice making efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water temperature adjustment, in particular to a refrigeration water circulation system, a control method thereof and a water purifier. BACKGROUND

[0002] For a water purifier or the like having ice-making and refrigeration functions, a low temperature can be generated by a compressor refrigeration system to cool water to a required temperature or make ice cubes.

[0003] However, the low-temperature water tank of such a water purifier needs to meet the requirements of both drinking cold water and ice-making, and thus has a large volume. Therefore, during ice-making, the amount of water that needs to be cooled is often much more than the amount of water required for ice-making itself, thereby resulting in low ice-making efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a refrigeration water circulation system and a control method thereof and a water purifier for improving ice-making efficiency.

[0005] A refrigeration water circulation system, comprising:

[0006] an evaporator assembly;

[0007] a first water tank comprising a tank body and a partition plate; the partition plate is arranged in the tank body and divides the space in the tank body into an ice-water part and a cold-water part;

[0008] a circulation mechanism connected to the evaporator assembly and the ice-water part and configured to drive water to flow between the ice-water part and the evaporator assembly.

[0009] In one embodiment, the refrigeration water circulation system further comprises a water supplement mechanism connected to the ice-water part and the cold-water part and having a first water supplement mode and a second water supplement mode.

[0010] In the first water supplement mode, the water supplement mechanism is configured to supplement water to the ice-water part; in the second water supplement mode, the water supplement mechanism is configured to supplement water to the cold-water part.

[0011] In one embodiment, the partition plate has an overflow port connected to the ice-water part and the cold-water part.

[0012] In one embodiment, the water supplement mechanism comprises a water supplement electromagnetic valve, which comprises a water inlet, a first water outlet and a second water outlet; the first water outlet is connected to the ice-water part, and the second water outlet is connected to the cold-water part.

[0013] In the first water replenishing mode, the first water outlet is opened and the second water outlet is closed; in the second water replenishing mode, the first water outlet is closed and the second water outlet is opened.

[0014] In one of the embodiments, the chilled water circulation system further comprises a first temperature sensing member arranged in the ice-water part and configured to detect the water temperature in the ice-water part.

[0015] In one of the embodiments, the chilled water circulation system further comprises a second temperature sensing member arranged in the cold-water part and configured to detect the water temperature in the cold-water part.

[0016] In one of the embodiments, the thermal conductivity of the partition plate is 0.03 W / (M·K)-0.045 W / (M·K).

[0017] A water purifier comprising the chilled water circulation system as described above.

[0018] A control method of a chilled water circulation system, configured to control the chilled water circulation system as described above, the control method comprising:

[0019] obtaining the working state of the chilled water circulation system, detecting the cold-water temperature of the cold-water part and the cold-water level of the cold-water part;

[0020] controlling the water replenishing mechanism to replenish water in the first water replenishing mode or the second water replenishing mode based on the working state of the chilled water circulation system, the cold-water temperature and the cold-water level.

[0021] In one of the embodiments, the partition plate has an overflow port which communicates the ice-water part with the cold-water part.

[0022] The step of controlling the water replenishing mechanism to replenish water in the first water replenishing mode or the second water replenishing mode based on the working state of the chilled water circulation system, the cold-water temperature and the cold-water level, specifically comprises:

[0023] if the chilled water circulation system is in the ice-making state, the cold-water level is lower than a first set water level, and the cold-water temperature is higher than a first set temperature, the water replenishing mechanism is controlled to enter the first water replenishing mode to replenish water to the cold-water part through the overflow port, and the water replenishing mechanism is controlled to switch to the second water replenishing mode after the cold-water level reaches the highest water level or the cold-water temperature is not higher than the first set temperature.

[0024] if the chilled water circulation system is in the ice-making state, the cold-water level is lower than a first set water level, and the cold-water temperature is not higher than a first set temperature, the water replenishing mechanism is controlled to enter the second water replenishing mode.

[0025] In one embodiment, the partition plate has an overflow port that connects the ice water section and the cold water section;

[0026] The step of controlling the water replenishment mechanism to replenish water in either the first water replenishment mode or the second water replenishment mode based on the operating status of the chilled water circulation system, the chilled water temperature, and the chilled water level specifically includes:

[0027] If the cooling water circulation system is in the ice-making end interval and the cold water level is lower than the first set water level, then the water replenishment mechanism is controlled to enter the first water replenishment mode to replenish the cold water section to the highest water level through the overflow port. If the cold water temperature is not higher than the first set temperature during the water replenishment process, then the water replenishment mechanism is controlled to enter the second water replenishment mode.

[0028] If the cooling water circulation system is in the ice-making end interval and the cold water level is higher than the first set water level, then the water replenishment mechanism is controlled to enter the second water replenishment mode to replenish the ice water section with a first volume of water through the overflow port.

[0029] The aforementioned refrigeration water circulation system and its control method, as well as the water purifier, utilize a partition to divide the internal space into two parts, separating the ice water used for ice making from the drinking water, each with its own relatively independent space. This reduces the amount of ice water needed, lowers the difficulty of cooling the ice water, and improves ice-making efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a partial structural diagram of a water purifier with a cooling water circulation system in one embodiment of this application.

[0032] Figure 2 for Figure 1 The diagram shows a cross-sectional structure of the water purifier.

[0033] Figure 3 for Figure 1 The diagram shows the structure of the water purifier from another angle.

[0034] Figure 4 for Figure 1 The diagram shows the structure of the water purifier from another angle.

[0035] Figure 5 Figure 1 is a flowchart of a control method of a refrigerated water circulation system according to an embodiment of the present application.

[0036] Reference signs: 100, refrigerated water circulation system; 10, evaporator assembly; 30, first water tank; 31, tank body; 32, partition plate; 33, ice water part; 34, cold water part; 35, circulating water port; 37, cold water outlet; 38, second water supplement port; 50, compressor; 70, condenser assembly; 80, circulating water pipe; 91, first temperature sensing element; 92, second temperature sensing element; 101, first water level detection mechanism; 1011, first float; 1012, first liquid level proximity switch; 1013, second liquid level proximity switch; 1014, third liquid level proximity switch; 111, water supplement electromagnetic valve; 200, water purifier; 210, filter element; 220, water inlet pipe; 230, purified water pipe; 240, waste water pipe. DETAILED DESCRIPTION

[0037] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It should be noted that the specific embodiments of the present application do not limit the scope of the present application.

[0038] In the description of the present application, it should be understood that, if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0039] In addition, if there is a term "and / or", "and / or" is only a description of the relationship between the associated objects, and indicates that there can be three kinds of relationships, for example, A and / or B, which can represent the relationship between A and B: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents an "or" relationship between the associated objects before and after it. If there are terms "first", "second", these terms are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, four, five, etc., unless otherwise explicitly specified and limited.

[0040] In this application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific situation.

[0041] In this application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "below" the second feature and the like, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.

[0043] Please refer to Figures 1 to 4The refrigerated water circulation system 100 provided by an embodiment of the present application is used in the water purifier 200 and comprises an evaporator assembly 10, a first water tank 30, and a circulation mechanism. The first water tank 30 comprises a tank body 31 and a partition plate 32. The partition plate 32 is arranged in the tank body 31 and divides the space in the tank body 31 into an ice water part 33 and a cold water part 34. The circulation mechanism is connected to the evaporator assembly 10 and the ice water part 33 and is configured to drive water to flow between the ice water part 33 and the evaporator assembly 10.

[0044] To realize its normal function, the refrigerated water circulation system 100 can further comprise a compressor 50, a condenser assembly 70, an expansion valve, a water pumping pump, a circulating water pump, a circulating water pipe 80, and the like. The first water tank 30 further has a circulating water outlet 35, the circulating water pipe 80 is connected to the circulating water outlet 35 and the evaporator assembly 10, the water pumping pump can pump purified water to the first water tank 30, and the circulating water pump can drive water in the first water tank 30 to flow between the evaporator assembly 10 and the first water tank 30 through the circulating water pipe 80, so as to continuously exchange heat with the evaporator assembly 10. The first water tank 30 is a low-temperature water tank.

[0045] It can be understood that the water in the ice water part 33 is used for making ice, and the water therein is ice water. The water in the cold water part 34 is used for drinking, and the water therein is cold water. The first water tank 30 further has a cold water outlet 37 connected to the cold water part 34 and used for supplying cold water for drinking.

[0046] Correspondingly, the water purifier 200 has the functions of making ice and refrigerated water. When making ice, the water in the ice water part 33 circulates between the evaporator assembly 10 and the first water tank 30, and the temperature thereof is continuously reduced. The temperature of the water in the cold water part 34 needs to be reduced by exchanging heat with the water in the ice water part 33 through the partition plate 32. Therefore, in the refrigeration process, the temperature of the water in the ice water part 33 can be lower than the temperature of the water in the cold water part 34, that is, the temperature of the ice water is lower than the temperature of the cold water.

[0047] The refrigerated water circulation system 100 described above can divide the space in the tank body 31 into two parts, so as to separate the ice water for making ice and the cold water for drinking and provide relatively independent spaces for each of them. In this way, the amount of ice water is reduced, the difficulty of reducing the temperature of the ice water is reduced, the ice making efficiency is improved, and sufficient cold water for drinking is ensured.

[0048] In some embodiments, the thermal conductivity of the partition plate 32 is 0.03 W / (M·K)-0.045 W / (M·K).

[0049] In this way, the partition plate 32 can control the heat exchange rate between the cold water in the cold water part 34 and the ice water in the ice water part 33 within a reasonable range through the partition plate 32, so as to meet the demand for cold water for drinking and not excessively affect the ice making efficiency.

[0050] In some embodiments, the chilled water circulation system 100 further comprises a water replenishing mechanism, which is in communication with the ice water section 33 and the cold water section 34 respectively, and has a first water replenishing mode and a second water replenishing mode. In the first water replenishing mode, the water replenishing mechanism is configured to replenish water to the ice water section 33. In the second water replenishing mode, the water replenishing mechanism is configured to replenish water to the cold water section 34.

[0051] Specifically, the first water tank 30 has a first water replenishing port and a second water replenishing port 38, the first water replenishing port being in communication with the ice water section 33, and the second water replenishing port 38 being in communication with the cold water section 34. The water replenishing mechanism replenishes water to the ice water section 33 through the first water replenishing port, and replenishes water to the cold water section 34 through the second water replenishing port 38.

[0052] In this way, the chilled water circulation system 100 can flexibly choose to replenish water to the ice water section 33 or the cold water section 34 according to needs, making the water replenishment more targeted.

[0053] Further, the partition plate 32 has an overflow port, which is in communication with the ice water section 33 and the cold water section 34.

[0054] It can be understood that the overflow port is located at the top of the partition plate 32. In the first water replenishing mode, when the water level in the ice water section 33 reaches the height of the overflow port, and water continues to be replenished to the ice water section 33, the ice water in the ice water section 33 will flow into the cold water section 34 through the overflow port. In the second water replenishing mode, when the water level in the cold water section 34 reaches the height of the overflow port, and water continues to be replenished to the cold water section 34, the cold water in the cold water section 34 will flow into the ice water section 33 through the overflow port. Therefore, the first water replenishing mode corresponds to the ice water replenishing mode, and the second water replenishing mode corresponds to the normal temperature replenishing mode.

[0055] In this way, when the user needs to drink cold water and the cold water temperature is not low enough, the water replenishing mechanism can replenish water to the ice water section 33 in the first water replenishing mode until the water in the ice water section 33 flows from the overflow port to the cold water section 34, so as to reduce the cold water temperature of the cold water section 34. In other words, the ice water section 33 can adjust the temperature of the water in the cold water section 34 by replenishing water to the overflow port.

[0056] In some embodiments, the water replenishing mechanism comprises a water replenishing electromagnetic valve 111, which comprises a water inlet, a first water outlet and a second water outlet. The first water outlet is in communication with the ice water section 33, and the second water outlet is in communication with the cold water section 34. In the first water replenishing mode, the first water outlet is open, and the second water outlet is closed. In the second water replenishing mode, the first water outlet is closed, and the second water outlet is open.

[0057] It can be understood that the first water outlet of the water replenishing electromagnetic valve 111 is in communication with the ice water section 33 through the first water replenishing port, and the second water outlet of the water replenishing electromagnetic valve 111 is in communication with the cold water section 34 through the second water replenishing port 38.

[0058] The water replenishing electromagnetic valve 111 is a two-inlet electromagnetic valve, which can access the purified water from the water inlet, and make the purified water flow to one of the first water outlet and the second water outlet, so as to replenish the ice water part 33 of the first water tank 30 through the first water replenishing port or replenish the cold water part 34 of the first water tank 30 through the second water replenishing port 38.

[0059] In this way, the refrigerated water circulation system 100 can control whether to replenish water and the replenishing mode by the opening and closing state of the water replenishing electromagnetic valve 111, so that the water replenishing for the first water tank 30 can be automatically controlled.

[0060] In some embodiments, the refrigerated water circulation system 100 further comprises a first temperature sensing member 91 arranged in the ice water part 33 and configured to detect the water temperature in the ice water part 33.

[0061] In this way, the first temperature sensing member 91 can detect the ice water temperature, and the refrigerated water circulation system 100 can adjust the working parameters according to the ice water temperature. Meanwhile, the refrigerated water circulation system 100 can also select the water replenishing mode based on the ice water temperature.

[0062] In some embodiments, the refrigerated water circulation system 100 further comprises a second temperature sensing member 92 arranged in the cold water part 34 and configured to detect the water temperature in the cold water part 34.

[0063] In this way, the second temperature sensing member 92 can detect the cold water temperature, and the refrigerated water circulation system 100 can adjust the working parameters according to the cold water temperature. Meanwhile, the refrigerated water circulation system 100 can also select the water replenishing mode based on the cold water temperature.

[0064] In some embodiments, the refrigerated water circulation system 100 further comprises a first water level detection mechanism 101 arranged in the ice water part 33 and configured to detect the water level in the ice water part 33, i.e. the ice water level.

[0065] In some embodiments, the refrigerated water circulation system 100 further comprises a second water level detection mechanism arranged in the cold water part 34 and configured to detect the water level in the cold water part 34, i.e. the cold water level.

[0066] In this way, the first water level detection mechanism 101 can detect the ice water level, and the refrigerated water circulation system 100 can control whether to replenish water to the ice water part 33 through the first water replenishing port according to the ice water level. Specifically, when the ice water level is lower than a first set water level, the ice water part 33 is replenished with water. The second water level detection mechanism can detect the cold water level, and the refrigerated water circulation system 100 can control whether to replenish water to the cold water part 34 through the second water replenishing port 38 according to the cold water level. Specifically, when the cold water level is lower than a second set water level, the cold water part 34 is replenished with water.

[0067] Specifically, the first water level detecting mechanism 101 can include a first float 1011, a first liquid level proximity switch 1012, a second liquid level proximity switch 1013, and a third liquid level proximity switch 1014, and the first liquid level proximity switch 1012, the second liquid level proximity switch 1013, and the third liquid level proximity switch 1014 are arranged at intervals in the height direction, the first liquid level proximity switch 1012 is higher than the second liquid level proximity switch 1013, and the second liquid level proximity switch 1013 is higher than the third liquid level proximity switch 1014. The first float 1011 can reach the height of the first liquid level proximity switch 1012, the second liquid level proximity switch 1013, and the third liquid level proximity switch 1014 as the liquid level rises, and respectively represent that the water in the ice water part 33 is in a full water state, a water supplementing state, and a water shortage state.

[0068] Similarly, the second water level detecting mechanism can include a second float, a fourth liquid level proximity switch, a fifth liquid level proximity switch, and a sixth liquid level proximity switch, and the fourth liquid level proximity switch, the fifth liquid level proximity switch, and the sixth liquid level proximity switch are arranged at intervals in the height direction, the fourth liquid level proximity switch is higher than the fifth liquid level proximity switch, and the fifth liquid level proximity switch is higher than the sixth liquid level proximity switch. The first float 1011 can reach the height of the fourth liquid level proximity switch, the fifth liquid level proximity switch, and the sixth liquid level proximity switch as the liquid level rises, and respectively represent that the water in the cold water part 34 is in a full water state, a water supplementing state, and a water shortage state.

[0069] The above-mentioned refrigerated water circulating system 100 divides the space in the tank body 31 of the first water tank 30 into the ice water part 33 and the cold water part 34 by the partition plate 32, and the ice water part 33 and the cold water part 34 each have a water supplementing port and can supplement water respectively. In this way, the refrigerated water circulating system 100 has sufficient temperature difference between the ice water part 33 and the cold water part 34, and the water in the ice water part 33 can be used for ice making alone to improve ice making efficiency. In addition, the ice water part 33 can also adjust the temperature of the water in the cold water part 34 by supplementing water to the overflow port.

[0070] The application also provides a water purifier 200, which includes the above-mentioned refrigerated water circulating system 100.

[0071] It can be understood that the water purifier 200 also includes a conventional raw water tank, a filter element 210, a water inlet pipe 220, a purified water pipe 230, and a waste water pipe 240, the raw water tank is used to supply water to the filter element 210 through the water inlet pipe 220, and purified water and waste water are obtained after the water is filtered by the filter element 210, the purified water can be guided to the first water tank 30 through the purified water pipe 230 to generate drinking cold water or be used for ice making, and the waste water can be discharged through the waste water pipe 240.

[0072] In addition, in order to realize the ice making function, the water purifier 200 also includes an ice tray, a de-icing electromagnetic valve, etc., which will not be described here.

[0073] In some embodiments, the water purifier 200 further comprises a second water tank, and the water purifying pipe 230 is communicated with the second water tank. The water purifying pipe 230 can guide the purified water filtered by the filter element 210 to the second water tank. The water replenishing electromagnetic valve 111 is arranged between the second water tank and the first water tank 30. The water purifying pipe 230 guides the purified water to the second water tank. The second water tank replenishes water to the first water tank 30 through the water replenishing electromagnetic valve 111, so as to generate drinking cold water or be used for ice making. In other words, the second water tank is a water storage tank for storing purified water.

[0074] Please refer to Figure 5 The application further provides a control method of the refrigeration water circulation system, which is used for controlling the refrigeration water circulation system. The control method comprises the following steps:

[0075] S200, obtaining the working state of the refrigeration water circulation system, detecting the cold water temperature of the cold water part, and detecting the cold water level of the cold water part.

[0076] It can be understood that the working state of the refrigeration water circulation system comprises an ice making state and an ice making end gap. The detection of the cold water temperature can be realized by the second temperature sensing element, and the detection of the cold water level can be realized by the second water level detection mechanism.

[0077] S400, based on the working state of the refrigeration water circulation system, the cold water temperature, and the cold water level, controlling the water replenishing mechanism to replenish water in the first water replenishing mode or the second water replenishing mode.

[0078] It can be understood that the control of the water replenishing mechanism to replenish water in the first water replenishing mode or the second water replenishing mode can be realized by controlling the conduction of the water replenishing electromagnetic valve.

[0079] The control method of the refrigeration water circulation system can select the water replenishing mode of the first water tank according to the working state of the refrigeration water circulation system, the cold water temperature, and the cold water level, so as to adapt to different working condition requirements and improve the refrigeration efficiency of the system.

[0080] In some embodiments, the step of controlling the water replenishing mechanism to replenish water in the first water replenishing mode or the second water replenishing mode based on the working state of the refrigeration water circulation system, the cold water temperature, and the cold water level, i.e., step S400, specifically comprises:

[0081] If the refrigeration water circulation system is in the ice making state, the cold water level is lower than the first set water level, and the cold water temperature is higher than the first set temperature, the water replenishing mechanism is controlled to enter the first water replenishing mode to replenish water to the cold water part through the overflow port, and the cold water level is replenished to the highest water level or the water replenishing mechanism is controlled to switch to the second water replenishing mode after the cold water temperature is not higher than the first set temperature;

[0082] If the refrigeration water circulation system is in the ice-making state, the cold water level is lower than the first set water level, and the cold water temperature is not higher than the first set temperature, the water supplement mechanism is controlled to enter the second water supplement mode.

[0083] Specifically, if the refrigeration water circulation system is in the ice-making state, the ice water is sufficient, the cold water is insufficient, and the cold water temperature is higher than the first set temperature, the ice water is supplemented to overflow into the cold water part until the cold water temperature reaches the first set temperature, and then the second water supplement mode is used to supplement the cold water part to the highest water level. If the cold water temperature is always higher than the first set temperature, the ice water overflows to supplement the cold water part to the highest water level. If the refrigeration water circulation system is in the ice-making state, the ice water is sufficient, the cold water is insufficient, and the cold water temperature is lower than the first set temperature, the second water supplement mode is used to supplement the cold water part to the highest water level.

[0084] In this way, when ice-making is performed, if the cold water is insufficient and the temperature is relatively high, the water temperature can be reduced by supplementing the ice water part to overflow into the cold water part, so as to achieve the purpose of adjusting the cold water temperature by using ice water. If the cold water temperature is already relatively low, ice water adjustment is not needed, and the cold water part can be directly supplemented with water.

[0085] In some embodiments, based on the working state of the refrigeration water circulation system, the cold water temperature, and the cold water level, the step of controlling the water supplement mechanism to supplement water in the first water supplement mode or the second water supplement mode, i.e., step S400, specifically includes:

[0086] If the refrigeration water circulation system is in the ice-making end interval, and the cold water level is lower than the first set water level, the water supplement mechanism is controlled to enter the first water supplement mode to supplement the cold water part to the highest water level through the overflow port, and if the cold water temperature is not higher than the first set temperature during the water supplement process, the water supplement mechanism is controlled to enter the second water supplement mode.

[0087] If the refrigeration water circulation system is in the ice-making end interval, and the cold water level is higher than the first set water level, the water supplement mechanism is controlled to enter the second water supplement mode to supplement the ice water part with a first volume of water through the overflow port.

[0088] Specifically, if the refrigeration water circulation system is in the ice-making end interval, and the ice water is being supplemented, the cold water is insufficient, the ice water part is supplemented to the highest water level of the cold water part, and during the water supplement process, the cold water temperature of the cold water part decreases to the first set temperature, the second water supplement mode is switched to, and the highest water level is dynamically supplemented. If the refrigeration water circulation system is in the ice-making end interval, and the ice water is being supplemented, the cold water is sufficient, and after the cold water part is supplemented to the highest water level, the ice water part is supplemented with a water volume of one ice sheet.

[0089] In this way, in the ice-making end interval, if the cold water is insufficient, the ice water part can be used to supplement the cold water part to meet the cold water drinking water temperature requirement. If the cold water is sufficient, the cold water part can be used to supplement the ice water part for subsequent ice-making.

[0090] Each technical feature of the above-described embodiments can be combined with any other technical feature, and for the sake of brevity, not all possible combinations are described, but it is understood that the scope of the present disclosure encompasses all such possible combinations.

[0091] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be understood as limiting the scope of the patent application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A chilled water circulation system, characterized by, The refrigeration water circulation system is used in a water purifier and comprises: an evaporator assembly (10); a first water tank (30) comprising a tank body (31) and a partition plate (32); the partition plate (32) is arranged in the tank body (31) and divides the space in the tank body (31) into an ice water part (33) and a cold water part (34); a circulation mechanism connected with the evaporator assembly (10) and the ice water part (33) and configured to drive water to flow between the ice water part (33) and the evaporator assembly (10).

2. The chilled water circulation system of claim 1, wherein, The refrigeration water circulation system further comprises a water supplement mechanism connected with the ice water part (33) and the cold water part (34) respectively and having a first water supplement mode and a second water supplement mode; in the first water supplement mode, the water supplement mechanism is configured to supplement water to the ice water part (33); and in the second water supplement mode, the water supplement mechanism is configured to supplement water to the cold water part (34).

3. The chilled water circulation system of claim 2, wherein, The partition plate (32) has an overflow port connected with the ice water part (33) and the cold water part (34).

4. The chilled water circulation system of claim 2, wherein, The water supplement mechanism comprises a water supplement electromagnetic valve (111) having a water inlet, a first water outlet and a second water outlet; the first water outlet is connected with the ice water part (33) and the second water outlet is connected with the cold water part (34); in the first water supplement mode, the first water outlet is opened and the second water outlet is closed; and in the second water supplement mode, the first water outlet is closed and the second water outlet is opened.

5. The chilled water circulation system of claim 1, wherein, The refrigeration water circulation system further comprises a first temperature sensing element (91) arranged in the ice water part (33) and used to detect the water temperature in the ice water part (33); and / or, the refrigeration water circulation system further comprises a second temperature sensing element (92) arranged in the cold water part (34) and used to detect the water temperature in the cold water part (34).

6. The chilled water circulation system of claim 1, wherein, The partition plate (32) has a thermal conductivity of 0.03 W / (M·K)-0.045 W / (M·K).

7. A water purifier characterized by comprising: The refrigeration water circulation system comprises the refrigeration water circulation system according to any one of claims 1-6.

8. A control method of a chilled water circulation system, characterized by, The control method for controlling the refrigeration water circulation system according to any one of claims 2-6 comprises: obtaining the working state of the refrigeration water circulation system and detecting the cold water temperature of the cold water part and the cold water level of the cold water part; controlling the water supplement mechanism to supplement water in the first water supplement mode or the second water supplement mode based on the working state of the refrigeration water circulation system, the cold water temperature and the cold water level.

9. The control method according to claim 8, characterized by, The partition plate has an overflow port connected with the ice water part and the cold water part; the step of controlling the water supplement mechanism to supplement water in the first water supplement mode or the second water supplement mode based on the working state of the refrigeration water circulation system, the cold water temperature and the cold water level specifically comprises: If the refrigeration water circulation system is in ice-making state, the cold water level is lower than the first set water level, and the cold water temperature is higher than the first set temperature, the water supplement mechanism is controlled to enter the first water supplement mode to supplement water to the cold water part through the overflow port, and the water supplement is stopped when the cold water level reaches the highest water level or the cold water temperature is not higher than the first set temperature, and then the water supplement mechanism is controlled to switch to the second water supplement mode; If the refrigeration water circulation system is in ice-making state, the cold water level is lower than the first set water level, and the cold water temperature is not higher than the first set temperature, the water supplement mechanism is controlled to enter the second water supplement mode.

10. The control method according to claim 8, characterized by, The partition plate has an overflow port, which communicates the ice-water part and the cold water part; The step of controlling the water supplement mechanism to supplement water in the first water supplement mode or the second water supplement mode based on the working state of the refrigeration water circulation system, the cold water temperature, and the cold water level specifically includes: If the refrigeration water circulation system is in ice-making end interval, the cold water level is lower than the first set water level, the water supplement mechanism is controlled to enter the first water supplement mode to supplement water to the cold water part through the overflow port to the highest water level, and if the cold water temperature is not higher than the first set temperature during the water supplement process, the water supplement mechanism is controlled to enter the second water supplement mode; If the refrigeration water circulation system is in ice-making end interval, the cold water level is higher than the first set water level, the water supplement mechanism is controlled to enter the second water supplement mode to supplement a first volume of water to the ice-water part through the overflow port.

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