Pre-refrigeration method and mechanism

Abstract

The invention relates to the technical field of ice makers, and particularly discloses a pre-refrigeration method and a pre-refrigeration mechanism. The pre-refrigeration method comprises the following steps: determining a pre-refrigeration target temperature and a target pre-refrigeration strategy; pre-refrigerating the purified water injected into the cold container according to the target temperature and the target pre-refrigerating strategy; wherein the target temperature is the initial set temperature of the purified water required in the ice making stage. Compared with the prior art, the method has the advantages that the purified water at the normal temperature can be pre-refrigerated before ice making to reach the target temperature, the ice making time is shortened, particularly, under the condition that the environment temperature is high, the purified water required by next ice making can be pre-refrigerated in the cold container while ice making is conducted, the pre-refrigeration energy consumption can be reduced through the target pre-refrigeration strategy, and meanwhile the ice making efficiency is improved. And the pre-refrigeration temperature reaches the target temperature, and energy is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of ice making machines, and more particularly to a pre-refrigeration method and mechanism. Background Art

[0002] The working principle of the ice maker is based on the refrigeration system, using water as a carrier to make ice from water when powered on. There are many ways to refrigerate an ice maker, such as using a compressor to achieve heat exchange, or using the cold end of a semiconductor refrigeration chip to cool the water to make ice.

[0003] In the prior art, ice is usually made using water at room temperature. If the ambient temperature is high, the ice making time will be prolonged, resulting in low ice making efficiency.

[0004] Therefore, it is necessary to propose a pre-cooling method and mechanism to at least partially solve the problems existing in the prior art. Summary of the invention

[0005] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides a pre-refrigeration method, comprising:

[0007] Determine a target temperature for pre-cooling and a target pre-cooling strategy;

[0008] Pre-cooling the purified water injected into the cooling tank according to the target temperature and the target pre-cooling strategy;

[0009] Among them, the target temperature is: the initial set temperature of the purified water required in the ice making stage.

[0010] Preferably, it also includes:

[0011] The pre-cooling target temperature is compared with the current ambient temperature. If the target temperature is greater than or equal to the current ambient temperature, there is no need to pre-cool the purified water in the cooling tank. If the target temperature is lower than the current ambient temperature, the purified water injected into the cooling tank is pre-cooled according to the target temperature and the target pre-cooling strategy.

[0012] Preferably, determining the target pre-cooling strategy includes:

[0013] According to the current ambient temperature and the temperature of purified water in the cooling tank after the purified water is injected, the pre-cooling energy consumption of multiple pre-cooling strategies is predicted respectively to obtain the predicted energy consumption corresponding to each pre-cooling strategy;

[0014] A pre-cooling strategy that satisfies the lowest predicted energy consumption is selected from multiple pre-cooling strategies as the target pre-cooling strategy.

[0015] Preferably, the plurality of pre-cooling strategies include:

[0016] The first pre-cooling strategy is to replenish and inject clean water into the cooling tank at the beginning of ice making, and pre-cool the clean water in the cooling tank at the target time during the ice making stage;

[0017] The second pre-cooling strategy is to add clean water to the cooling tank at the beginning of ice making, keep the clean water temperature in the cooling tank at the set temperature during the ice making stage, and pre-cool the clean water in the cooling tank at the target time during the ice making stage.

[0018] Preferably, the pre-cooling energy consumption of multiple pre-cooling strategies is predicted according to the current ambient temperature and the purified water temperature in the cooling tank after the purified water is injected, and the predicted energy consumption corresponding to each pre-cooling strategy is obtained, including:

[0019] Obtain the current temperature difference between the current ambient temperature and the temperature of the purified water in the cold tank after the purified water is injected;

[0020] The pre-cooling energy consumption corresponding to each pre-cooling strategy is predicted according to the current temperature difference to obtain the predicted energy consumption corresponding to each pre-cooling strategy.

[0021] Preferably, in the first pre-cooling strategy, during the ice making stage, the target time for pre-cooling the purified water in the cooling tank is determined, including:

[0022] Obtain the current temperature difference between the current ambient temperature and the temperature of the purified water in the cold tank after the purified water is injected;

[0023] Determine the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time, and use the current pre-cooling time as the reference time for the next pre-cooling;

[0024] The initial time and end time of pre-cooling are obtained according to the determined current pre-cooling time, so that the end time of the current pre-cooling corresponds to the initial time of the next ice making, and the initial time of the current pre-cooling is used as the target time for pre-cooling the purified water in the cold tank during the ice making stage.

[0025] Preferably, determining the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time includes:

[0026] The adjustment value is obtained based on the current temperature difference and the temperature difference during the last pre-cooling; the temperature difference during the last pre-cooling is the temperature difference between the last ambient temperature and the temperature of the purified water in the cooling tank after the purified water is injected;

[0027] When the adjustment value is greater than or equal to the first set difference, the current pre-cooling time obtained is: the sum of the current pre-cooling reference time and the time adjustment amount;

[0028] When the adjustment value is less than the second set difference, the current pre-cooling time obtained is: the difference between the current pre-cooling reference time and the time adjustment amount;

[0029] When the adjustment value is less than the first set difference and greater than or equal to the second set difference, the current pre-cooling time is the reference time for the current pre-cooling.

[0030] Preferably, determining the target temperature of pre-cooling includes:

[0031] Obtaining the ice-making energy consumption and ice-making time in the ice-making stage, and optimizing them to obtain the target temperature that satisfies the minimum ice-making energy consumption and the shortest ice-making time;

[0032] Among them, the target temperature is within its set value range.

[0033] A pre-cooling mechanism adopts the pre-cooling method of the present invention, comprising: a cold tank, one end of which is connected to a clean water tank through a first water inlet pipe, and the other end of which provides clean water of target temperature to an ice box through a first water outlet pipe.

[0034] Preferably, the cooling tank comprises: an inner tank, the interior of which is used to store purified water, and a plurality of cooling fins are arranged on the outside of which; an outer tank is sleeved on the outer side of the inner tank, a heat dissipation cavity is formed on the outer tank, and the heat dissipation cavity is used to pass circulating cooling water; the cold end of the cooling fin is in contact with the inner tank, and the hot end of the cooling fin is in contact with the outer tank.

[0035] Compared with the prior art, the present invention has at least the following beneficial effects:

[0036] The pre-cooling method and mechanism described in the present invention can pre-cool purified water at room temperature before ice making to reach the target temperature, thereby shortening the ice making time. Especially when the ambient temperature is high, the purified water required for the next ice making can be pre-cooled in the cold tank while ice is being made. In addition, the target pre-cooling strategy can reduce the pre-cooling energy consumption while ensuring that the pre-cooling temperature reaches the target temperature, thereby saving energy.

[0037] The pre-refrigeration method and mechanism described in the present invention, and other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0039] Figure 1 is a flow chart of the pre-refrigeration method of the present invention;

[0040] Figure 2 This is a flow chart of step S11 in the pre-cooling method of the present invention;

[0041] Figure 3 It is a structural schematic diagram of the pre-refrigeration mechanism of the present invention in an ice maker;

[0042] Figure 4 It is a schematic diagram of a top cross-sectional structure of the pre-refrigeration mechanism of the present invention;

[0043] Figure 5 It is a structural schematic diagram of the pre-refrigeration mechanism described in the present invention. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0045] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0046] like Figure 1 As shown, the present invention provides a pre-refrigeration method, comprising:

[0047] S1. Determine the target temperature and target pre-cooling strategy for pre-cooling;

[0048] S2, pre-cooling the purified water injected into the cooling tank 1 according to the target temperature and the target pre-cooling strategy;

[0049] Among them, the target temperature is: the initial set temperature of the purified water required in the ice making stage.

[0050] When making ice, first determine the initial set temperature of the purified water required for ice making, use the initial set temperature as the target temperature for pre-cooling, then pre-cool the purified water at room temperature through the target pre-cooling strategy, cool the purified water to the target temperature, and then use the purified water at the target temperature to make ice;

[0051] Among them, the determination of the target pre-cooling strategy is mainly to reduce the energy consumption in the pre-cooling stage, better coordinate with the ice-making stage, ensure that the purified water provided for the ice-making stage meets the target temperature, and thus reduce the ice-making time.

[0052] Through the above method, purified water at room temperature can be pre-cooled before ice making to reach the target temperature, thereby shortening the ice making time. Especially when the ambient temperature is high, the purified water required for the next ice making can be pre-cooled in the cold tank 1 while ice is being made. In addition, the target pre-cooling strategy can reduce the pre-cooling energy consumption while ensuring that the pre-cooling temperature reaches the target temperature, thereby saving energy.

[0053] In one embodiment, it further includes:

[0054] The pre-cooling target temperature is compared with the current ambient temperature. If the target temperature is greater than or equal to the current ambient temperature, there is no need to pre-cool the purified water in the cold tank 1. If the target temperature is lower than the current ambient temperature, the purified water injected into the cold tank 1 is pre-cooled according to the target temperature and the target pre-cooling strategy.

[0055] Before making ice, the target temperature is compared with the current ambient temperature. Only when the target temperature is lower than the current ambient temperature does the purified water in cold tank 1 need to be pre-cooled; for example, the setting range of the target temperature is 10 degrees Celsius to 15 degrees Celsius. When the target temperature is 10 degrees Celsius and the current ambient temperature is 20 degrees Celsius, the normal temperature of purified water is also 20 degrees Celsius. In this case, the purified water in cold tank 1 needs to be pre-cooled; when the target temperature is 10 degrees Celsius and the current ambient temperature is 5 degrees Celsius, the normal temperature of purified water is also 5 degrees Celsius. In this case, the purified water in cold tank 1 does not need to be pre-cooled.

[0056] like Figure 2 As shown, in one embodiment, determining the target pre-cooling strategy includes:

[0057] S11, predicting the pre-cooling energy consumption of multiple pre-cooling strategies respectively according to the current ambient temperature and the purified water temperature in the cooling tank 1 after the purified water is injected, and obtaining the predicted energy consumption corresponding to each pre-cooling strategy;

[0058] S12. Selecting a pre-cooling strategy that satisfies the lowest predicted energy consumption from among multiple pre-cooling strategies as a target pre-cooling strategy.

[0059] The purified water temperature in the cooling tank 1 after the purified water is injected is the lowest temperature reached after the purified water is injected when the cooling tank 1 is not refrigerated.

[0060] The volume of the cold tank 1 is selected to correspond to the volume of the ice box 3, and the cold tank 1 has a certain heat preservation effect. After the purified water of the target temperature in the cold tank 1 is discharged, the temperature in the cold tank 1 has not returned to the current ambient temperature when the cold tank 1 is not refrigerated. Therefore, after the purified water is added to the cold tank 1, the purified water is exchanged with the cold tank 1, and the temperature of the injected purified water is reduced to below the current ambient temperature, that is, the temperature of the purified water in the cold tank 1 after the purified water is injected is lower than the current ambient temperature.

[0061] Furthermore, according to the current ambient temperature and the purified water temperature in the cooling tank 1 after the purified water is injected, the pre-cooling energy consumption of multiple pre-cooling strategies is predicted respectively to obtain the predicted energy consumption corresponding to each pre-cooling strategy, including:

[0062] Obtain the current temperature difference between the current ambient temperature and the purified water temperature in the cold tank 1 after the purified water is injected;

[0063] The pre-cooling energy consumption corresponding to each pre-cooling strategy is predicted according to the current temperature difference to obtain the predicted energy consumption corresponding to each pre-cooling strategy.

[0064] When it is not the first time to make ice, after the purified water is added to the cold tank 1, since the cold tank 1 has a certain heat preservation function, the normal temperature purified water after addition will exchange heat with the cold tank 1, and the purified water temperature will drop to below the current ambient temperature. When the cold tank 1 is not refrigerated, the purified water in it will exchange heat with the outside world, so that the purified water after cooling will heat up again. Therefore, the purified water after addition will first cool down and then heat up. In this process, the lowest temperature of the purified water after addition will be used as the purified water temperature in the cold tank 1 after the purified water is added.

[0065] Energy consumption data under multiple different temperature differences (temperature difference between ambient temperature and purified water temperature in the cooling tank 1 after purified water is injected) are obtained in advance when pre-cooling is performed under multiple pre-cooling strategies, and each energy consumption corresponds to a temperature difference and a pre-cooling strategy;

[0066] The energy consumption data is pre-stored as multiple predicted energy consumptions. Before pre-cooling, the corresponding predicted energy consumption and pre-cooling strategy are retrieved through the temperature difference, and then the pre-cooling strategy that meets the lowest predicted energy consumption is selected from the multiple pre-cooling strategies as the target pre-cooling strategy. Through the above method, the energy consumption of pre-cooling can be reduced and the energy consumption of the ice-making process can be saved.

[0067] In one embodiment, the plurality of pre-cooling strategies include:

[0068] The first pre-cooling strategy is to replenish and inject clean water into the cold container 1 at the beginning of ice making, and pre-cool the clean water in the cold container 1 at the target time in the ice making stage;

[0069] After the purified water in the cold tank 1 is pre-cooled to the target temperature, it is discharged from the cold tank 1 for ice making, that is, the current ice making begins; then the pre-cooling of the cold tank 1 is stopped, and purified water is added to the cold tank 1, and the purified water is pre-cooled again at the target time in the ice making stage, so as to reduce the pre-cooling time, save energy consumption, and ensure that when the current ice making ends, the inner tank 1 can provide purified water at the target temperature required for the next ice making;

[0070] The second pre-cooling strategy is to add purified water to the cold tank 1 at the beginning of ice making, keep the purified water temperature in the cold tank 1 at the set temperature during the ice making stage, and pre-cool the purified water in the cold tank 1 at the target time during the ice making stage;

[0071] Different from the first pre-cooling strategy, when ice making starts this time, cold tank 1 does not stop pre-cooling or performs pre-cooling intermittently, and keeps the purified water temperature in the cold tank at the set temperature or not higher than the set temperature. The set temperature is lower than the current ambient temperature and higher than the target temperature. That is, cold tank 1 works at the lowest energy consumption and can maintain the purified water temperature not higher than the set temperature to prevent the purified water temperature in tank 1 from rising too quickly and increasing the pre-cooling energy consumption and time.

[0072] In one embodiment, in the first pre-cooling strategy, during the ice making stage, the target time for pre-cooling the purified water in the cooling tank 1 is determined, including:

[0073] Obtain the current temperature difference between the current ambient temperature and the purified water temperature in the cold tank 1 after the purified water is injected;

[0074] Determine the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time, and use the current pre-cooling time as the reference time for the next pre-cooling;

[0075] The initial time and end time of pre-cooling are obtained according to the determined current pre-cooling time, so that the end time of the current pre-cooling corresponds to the initial time of the next ice making, and the initial time of the current pre-cooling is used as the target time for pre-cooling the purified water in the cold tank 1 during the ice making stage.

[0076] The temperature difference can indicate the temperature rise of the purified water in the cold tank 1. The larger the temperature difference, the more serious the temperature rise of the purified water in the cold tank 1. The smaller the temperature difference, the less severe the temperature rise of the purified water in the cold tank 1. The required pre-cooling time will be different. Therefore, it is necessary to determine the current pre-cooling time according to the current temperature difference, and then determine the target time of pre-cooling, so as to ensure that the purified water is pre-cooled to the target temperature under the premise of saving energy consumption.

[0077] The current pre-cooling reference time may be obtained based on experimental data or may be a pre-set time, and the current pre-cooling reference time is less than the time required for ice making;

[0078] The time required from the target moment in the ice-making stage to the end moment of ice-making is the first time, and the time required for pre-cooling the purified water in the cold tank 1 is the second time (the current pre-cooling time). The difference between the first time and the second time is within the set range, so that the deviation between the end moment of the current pre-cooling and the initial moment of the next ice-making is less than the set time deviation, thereby preventing the end moment of the current pre-cooling and the initial moment of the next ice-making from differing too much, which results in the need to keep the inner tank 1 warm and increase energy consumption, or causes the current ice-making to end, and the waiting time for the pre-cooling of the purified water in the inner tank 1 is too long, thereby increasing the ice-making time.

[0079] Further, determining the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time includes:

[0080] The adjustment value is obtained based on the current temperature difference and the temperature difference during the last pre-cooling; the temperature difference during the last pre-cooling is the temperature difference between the last ambient temperature and the temperature of the purified water in the cooling tank after the purified water is injected; the adjustment value is the difference between the current temperature difference and the temperature difference during the last pre-cooling;

[0081] When the adjustment value is greater than or equal to the first set difference, the current pre-cooling time obtained is: the sum of the current pre-cooling reference time and the time adjustment amount; the time adjustment amount can be a fixed value, or can be determined according to the size of the adjustment value;

[0082] When the adjustment value is greater than or equal to the first set difference, it indicates that the temperature rise of the purified water in the cold tank 1 in the future time is more serious than the temperature rise during the previous pre-cooling; wherein, the time adjustment amount is greater than zero, which means that a certain time is added to the reference time of the current pre-cooling to extend the pre-cooling time, so as to ensure that the purified water temperature in the cold tank 1 can reach the target temperature under the current pre-cooling time, and the end time of pre-cooling corresponds to the initial time of the next ice making, so as to optimally reduce energy consumption;

[0083] When the adjustment value is less than the second set difference, the current pre-cooling time obtained is: the difference between the current pre-cooling reference time and the time adjustment amount; the time adjustment amount can be a fixed value, or can be determined according to the size of the adjustment value;

[0084] When the adjustment value is less than the second set difference, it indicates that the temperature rise of the purified water in the cold tank 1 in the future time is lighter than the temperature rise during the last pre-cooling. The time adjustment amount is greater than zero, which means that a certain amount of time is reduced on the basis of the current pre-cooling reference time to shorten the pre-cooling time, ensuring that the purified water temperature in the cold tank 1 can reach the target temperature under the current pre-cooling time, and the end time of pre-cooling corresponds to the initial time of the next ice making, thereby optimally reducing energy consumption.

[0085] When the adjustment value is less than the first set difference and greater than or equal to the second set difference, the current pre-cooling time is the reference time for the current pre-cooling;

[0086] The adjustment value is less than the first set difference and greater than or equal to the second set difference, indicating that the temperature rise of the purified water in the cold tank 1 in the future time is relatively stable compared with the temperature rise during the last pre-cooling. Pre-cooling can be performed using the current pre-cooling reference time to optimally reduce energy consumption and ensure that the difference between the first time and the second time is within the set range.

[0087] In one embodiment, determining a target temperature for pre-cooling includes:

[0088] Obtaining the ice-making energy consumption and ice-making time in the ice-making stage, and optimizing them to obtain the target temperature that satisfies the minimum ice-making energy consumption and the shortest ice-making time;

[0089] Among them, the target temperature is within its set value range.

[0090] The setting range of the target temperature is 10 degrees Celsius to 15 degrees Celsius; the ice-making energy consumption and ice-making time in the ice-making stage are taken as the optimization targets, the target temperature of pre-cooling is taken as the optimization parameter, and the target temperature within its setting range is taken as the constraint condition, so as to optimize and obtain the optimal solution, that is, to obtain the target temperature that satisfies the minimum ice-making energy consumption and the shortest ice-making time; using the target temperature as the initial setting temperature of the purified water required in the ice-making stage can save energy consumption and reduce ice-making time.

[0091] like Figure 3 As shown, a pre-refrigeration mechanism adopts the pre-refrigeration method described in the present invention, including: a cold tank 1, one end of which is connected to the clean water tank 2 through a first water inlet pipe, and the other end provides clean water of target temperature to the ice box 3 through a first water outlet pipe.

[0092] Furthermore, a temperature sensor is provided in the cold container 1 for detecting the temperature of the purified water in the cold container 1 .

[0093] The clean water tank 2 is used to provide clean water to the cold container 1. The clean water is pre-cooled in the cold container 1. After reaching the target temperature, the clean water of the target temperature is provided to the ice-making box 3 through the first water outlet pipe for ice making. The ice-making box 3 uses semiconductor refrigeration plates for cooling, thereby achieving ice making. After ice making is completed, the ice-making box 3 is turned upside down so that the made ice cubes fall into the ice-making basket 6, and then the ice-making box 3 is turned upward to the initial position to prepare for the next ice making.

[0094] like Figure 4 and Figure 5As shown, further, the cooling tank 1 includes: an inner tank 11, the interior of which is used to store purified water, and a plurality of cooling fins 12 are arranged on the outside of the inner tank 11; an outer tank 13 is sleeved on the outer side of the inner tank 11, and a heat dissipation cavity 14 is formed on the outer tank 13, and the heat dissipation cavity 14 is used to pass circulating cooling water; the cold end of the cooling fin 12 is in contact with the inner tank 11, and the hot end of the cooling fin 12 is in contact with the outer tank 13.

[0095] The refrigeration fins 12 are preferably set to an even number and evenly arranged on the outside of the inner tank 11. When the refrigeration tank 1 is running with minimum energy consumption, only one of the refrigeration fins 12 can be turned on for cooling; the heat dissipation cavity 14 on the outer tank 13 dissipates heat from the hot end of the refrigeration fins 12 by water cooling.

[0096] like Figure 4 and Figure 5 As shown, further, one end of the heat dissipation cavity 14 is connected to the cooling water tank 4 through a second water inlet pipe for providing cooling water to the heat dissipation cavity 14, and the other end of the heat dissipation cavity 14 is connected to the cooling device 5 through a second water outlet pipe.

[0097] The cooling water tank 4 provides cooling water to the heat dissipation cavity 14 through the second water inlet pipe. The cooling water passing through the heat dissipation cavity 14 is then passed to the cooling device 5 for cooling. After cooling, it flows back to the cooling water tank 4 again, so as to circulate cooling water into the heat dissipation cavity 14 for heat dissipation at the cold end of the refrigeration plate 12.

[0098] like Figure 4 and Figure 5 As shown, further, a heat-insulating cavity 15 is formed between the portion of the outer side of the inner liner 11 where the refrigeration fins 12 are not arranged and the outer liner 13, and the heat-insulating cavity 15 is provided with heat-insulating materials or is in a vacuum state;

[0099] A heat sink 16 is provided on the inner wall of the heat dissipation cavity 14 at a position corresponding to the hot end of the refrigeration fin 12. The outer tank 13 conducts heat, and the inner tank 11 conducts cold. The thickness of the contact portion between the inner tank 11 and the cold end of the refrigeration fin 12 is smaller than the thickness of the corresponding portion between the inner tank 11 and the insulation cavity 15.

[0100] The heat-insulating cavity 15 can isolate the inner liner 11 from the heat-dissipating cavity 14 to reduce heat transfer; the heat-dissipating sheet 16 can increase the heat-conducting area of ​​the contact portion between the outer liner 13 and the cooling sheet 12 to improve the heat-dissipating effect.

[0101] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0102] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the present invention, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A pre-cooling method, characterized in that: include: Determine a target temperature for pre-cooling and a target pre-cooling strategy; Pre-cooling the purified water injected into the cooling tank according to the target temperature and the target pre-cooling strategy; Among them, the target temperature is: the initial set temperature of the purified water required in the ice making stage.

2. The pre-cooling method according to claim 1, characterized in that: Also includes: The pre-cooling target temperature is compared with the current ambient temperature. If the target temperature is greater than or equal to the current ambient temperature, there is no need to pre-cool the purified water in the cooling tank. If the target temperature is lower than the current ambient temperature, the purified water injected into the cooling tank is pre-cooled according to the target temperature and the target pre-cooling strategy.

3. The pre-cooling method according to claim 1, characterized in that: Determine the target pre-cooling strategy including: According to the current ambient temperature and the temperature of purified water in the cooling tank after the purified water is injected, the pre-cooling energy consumption of multiple pre-cooling strategies is predicted respectively to obtain the predicted energy consumption corresponding to each pre-cooling strategy; A pre-cooling strategy that satisfies the lowest predicted energy consumption is selected from multiple pre-cooling strategies as the target pre-cooling strategy.

4. The pre-cooling method according to claim 3, characterized in that: Several pre-cooling strategies include: The first pre-cooling strategy is to replenish and inject clean water into the cooling tank at the beginning of ice making, and pre-cool the clean water in the cooling tank at the target time during the ice making stage; The second pre-cooling strategy is to add clean water to the cooling tank at the beginning of ice making, keep the clean water temperature in the cooling tank at the set temperature during the ice making stage, and pre-cool the clean water in the cooling tank at the target time during the ice making stage.

5. The pre-refrigeration method according to claim 3, characterized in that: According to the current ambient temperature and the temperature of the purified water in the cooling tank after the purified water is injected, the pre-cooling energy consumption of multiple pre-cooling strategies is predicted respectively, and the predicted energy consumption corresponding to each pre-cooling strategy is obtained, including: Obtain the current temperature difference between the current ambient temperature and the temperature of the purified water in the cold tank after the purified water is injected; The pre-cooling energy consumption corresponding to each pre-cooling strategy is predicted according to the current temperature difference to obtain the predicted energy consumption corresponding to each pre-cooling strategy.

6. The pre-cooling method according to claim 4, characterized in that: In the first pre-cooling strategy, during the ice-making stage, the target time for pre-cooling the purified water in the cooling tank is determined, including: Obtain the current temperature difference between the current ambient temperature and the temperature of the purified water in the cold tank after the purified water is injected; Determine the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time, and use the current pre-cooling time as the reference time for the next pre-cooling; The initial time and end time of pre-cooling are obtained according to the determined current pre-cooling time, so that the end time of the current pre-cooling corresponds to the initial time of the next ice making, and the initial time of the current pre-cooling is used as the target time for pre-cooling the purified water in the cold tank during the ice making stage.

7. The pre-cooling method according to claim 6, characterized in that: Determining the current pre-cooling time according to the current temperature difference and the current pre-cooling reference time includes: The adjustment value is obtained based on the current temperature difference and the temperature difference during the last pre-cooling; the temperature difference during the last pre-cooling is the temperature difference between the last ambient temperature and the temperature of the purified water in the cooling tank after the purified water is injected; When the adjustment value is greater than or equal to the first set difference, the current pre-cooling time obtained is: the sum of the current pre-cooling reference time and the time adjustment amount; When the adjustment value is less than the second set difference, the current pre-cooling time obtained is: the difference between the current pre-cooling reference time and the time adjustment amount; When the adjustment value is less than the first set difference and greater than or equal to the second set difference, the current pre-cooling time is the reference time for the current pre-cooling.

8. The pre-refrigeration method according to claim 1, characterized in that: Determine the target temperature for pre-cooling, including: Obtaining the ice-making energy consumption and ice-making time in the ice-making stage, and optimizing them to obtain the target temperature that satisfies the minimum ice-making energy consumption and the shortest ice-making time; Among them, the target temperature is within its set value range.

9. A pre-cooling mechanism, characterized in that: The pre-cooling method according to any one of claims 1 to 8 comprises: a cold tank, one end of which is connected to a clean water tank through a first water inlet pipe, and the other end of which provides clean water of a target temperature to an ice box through a first water outlet pipe.

10. The pre-refrigeration mechanism according to claim 9, characterized in that: The cooling tank comprises: an inner tank, the interior of which is used to store purified water, and a plurality of cooling fins are arranged on the exterior of the inner tank; an outer tank is sleeved on the outer side of the inner tank, a heat dissipation cavity is formed on the outer tank, and circulating cooling water is passed into the heat dissipation cavity; the cold end of the cooling fin is in contact with the inner tank, and the hot end of the cooling fin is in contact with the outer tank.

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