Ice making method of ice making machine

Abstract

The present invention provides an ice making method of an ice maker, which comprises a box, an ice making component, an ice-removing component, an ice-making box and a pumping device; the ice-making component makes ice at an evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator; the ice-removing component passes high-temperature exhaust gas into the evaporator to heat up and remove ice; the ice-making method comprises the following steps: S1, the ice-making box is operated to an ice-making state position; S2, the pumping device pumps water from a water-containing cavity into the ice-making box; S3, the ice-making component starts to work, and ice cubes are formed in the ice-making box and attached to ice-making columns of the evaporator; S4, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2 to -15°C, the water in the ice-making box is emptied, and the ice-making component continues to operate to cool the ice cubes; S5, after time t2, when the ice cubes reach low-temperature ice of -15 to -30°C, the ice-removing component starts to work to remove ice, so that the ice cubes fall off the ice-making columns.

Description

Technical Field

[0001] The invention relates to ice making technology, in particular to an ice making method of an ice making machine. Background Art

[0002] At present, an ice maker is a refrigeration device that passes water through an evaporator and is cooled by a refrigerant in a refrigeration system to generate ice. There are various methods of making ice using an evaporator: (1) an immersion method in which a water tank is filled with water; (2) a spray method in which water is sprayed through a nozzle; (3) a flow method in which water flows downward in a slanted position; and a method of using an ice tray for cooling.

[0003] A common household ice maker generally includes a cabinet, an ice-making mechanism for making ice cubes, an ice basket for receiving the ice cubes made by the ice-making mechanism, a water storage mechanism for receiving the water output by the ice-making mechanism, and a water flow baffle for guiding the ice cubes and water respectively; when making ice, the water storage mechanism first fills water into the flip water box; then, the compressor on the ice-making mechanism is turned on, and the refrigerant flows through the condenser, the capillary tube, the evaporator (freezing plate) in turn and then flows back to the compressor, and cools the flip water box and the water in the flip water box through the freezing plate. During the ice-making process, the liquid cools and solidifies on the surface of the ice-making column of the freezing plate to form ice cubes. When enough ice is condensed, the compressor is turned off to stop the refrigerant circulation. Then, the ice-making column is heated by an electric heater or by controlling the reverse flow of the compressor refrigerant to increase its temperature. The ice cubes attached to the ice-making column are melted by the heat and separated from the ice-making column. Then, the ice is de-iced and enters the ice water in the flip water box. Then, the flip motor drives the flip water box to rotate, so that the ice-water mixture in the flip water box passes through the inclined guide plate and the water flow partition in turn and falls into the ice basket and the water storage mechanism respectively, completing the water outlet and de-icing. Alternatively, the ice-making grid is used to cool the water flowing from top to bottom.

[0004] The disadvantages of the above-mentioned ice maker and its ice making control method are: the ice making state in the water box or the ice making grid is judged simply by detecting the temperature through the temperature sensor arranged at the water box or the ice making grid, that is, an open-loop control method is adopted, and the ice making time is fixed, resulting in the size consistency and quality of the ice cubes being affected under different conditions. The quality is mainly reflected in the inconsistency of the density and cooling capacity of the ice, and some ice cubes are easily melted during use and are not durable.

[0005] Moreover, in the existing ice making machine and ice making control method thereof, each ice cube on the ice column or the ice cube in each ice grid has a different contact distance with the cold source on the inner and outer surfaces of the ice cube, that is, a different contact distance with the surface of the ice column or the inner wall of each grid in the ice grid, which will cause a relatively large deviation in the refrigeration temperature at different distances between the inside of the ice cube and the cold source; for example, when the ice cube formed on the existing ice column is about to leave the ice column and enter the ice water in the water making box after being formed, the temperature of the ice water in the water making box is generally around 3°C, and the temperature of the ice column is generally between -12~ The temperature of the ice cube is about -15℃. Since the inner side of the ice cube is in direct contact with the ice-making column as the cold source, the temperature of the inner side of the ice cube 2 mm away from the ice-making column is generally around -9~-11℃, and the temperature of the outer side of the ice cube 5 mm away from the ice-making column is generally around -5~-7℃. That is to say, the existing ice-making method will cause a temperature difference of -4~-6℃ between the ice-making surface in direct contact with the cold source and the ice surface far away from the cold source, resulting in inconsistent density of the ice cubes inside and outside and inconsistent coldness of the whole ice block, which makes the ice cubes easily melt when used and not durable. Summary of the invention

[0006] The invention provides an ice making method of an ice making machine, which can quickly and conveniently prepare low-temperature ice of -15°C to -30°C by secondary cooling of ice cubes in ice columns or ice trays, effectively improve the density and cooling capacity of the ice cubes, and improve the consistency and quality of the ice cubes.

[0007] In order to achieve the above-mentioned invention object, the technical solution adopted by the present invention is:

[0008] An ice-making method of an ice-making machine, the ice-making machine comprises a box, an ice-making assembly, an ice-removing assembly, an ice-making box and a pumping device, the ice-making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-containing cavity; the pumping device can pump water from the water-containing cavity into the ice-making box; the ice-making assembly makes ice at an evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and deicing, and the ice-making method comprises the following steps:

[0009] S1, the ice box moves to the ice making state position;

[0010] S2, the water pumping device pumps the water in the water chamber into the ice box;

[0011] S3, the ice-making component starts to work, the fans on the compressor and the condenser start to run, and the refrigerant flows into the ice-making column of the evaporator, so that the temperature of the outer wall of the ice-making column drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making column to form ice cubes;

[0012] S4, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the ice box is operated to the drainage state, the water in the ice box is emptied and flows back to the water storage cavity, and the ice cubes are directly suspended in the air. Since the suspended and exposed ice cubes no longer increase, the ice cubes can continue to store cold, and the temperature of the ice cubes can be further reduced;

[0013] S5, after time t2, when the ice cubes reach the low temperature of -15~-30℃, the deicing component starts to work, the solenoid valve opens and the fan stops, and the high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice column rises to the ice melting temperature, the evaporator heats up to de-ice, and the ice cubes fall off the ice column;

[0014] S6, the ice box operates to push out ice cubes, completing the preparation of ice cubes.

[0015] An ice making method of an ice maker, the ice maker comprises a box, an ice making assembly, an ice-removing assembly, an ice-making grid and a water pumping device, wherein the ice making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-holding cavity; the water pumping device pumps water from the water-holding cavity to a diversion pipe, and the water flows through the ice-making grid and then returns to the water-holding cavity after being diverted; the ice-making grid is fixedly assembled with an evaporator as a whole; the ice-making assembly makes ice at the evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes the high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and ice-removing, and the ice-making method comprises the following steps:

[0016] S1, the water pumping device pumps the water in the water chamber to the diversion pipe and flows through the ice making grid;

[0017] S2, the ice-making component starts working, the fans on the compressor and the condenser start running, and the refrigerant flows into the ice-making grid of the evaporator, so that the temperature of the ice-making grid drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making grid to form ice cubes;

[0018] S3, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the pumping device stops supplying water, and the ice cubes no longer grow, so that the ice cubes can continue to store cold, and the temperature of the ice cubes is further reduced;

[0019] S4. After time t2, when the ice cubes reach a low temperature of -15~-30℃, the defrosting component starts to work, the solenoid valve opens and the fan stops, and the high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice grid rises to the ice-melting temperature, the evaporator heats up to defrost, and the ice cubes fall off the ice grid, completing the preparation of ice cubes.

[0020] The beneficial effects of the present invention are:

[0021] Compared with the existing method of using ice columns to solidify ice cubes or water to flow obliquely through ice grids to form ice, since the ice cubes are formed by immersing them in ice water in an ice box or ice grid, the temperature of the ice cubes is generally difficult to reach the low temperature requirement (below -15°C) due to the limitation of the formation volume.

[0022] In this embodiment, after the surface of the ice column or the ice grid is cooled and solidified to form ice cubes at room temperature, the ice water in the water cavity of the ice box is emptied or the water flowing through the ice grid is stopped, so that the ice cubes solidified on the ice column are directly suspended and exposed in the water cavity of the ice box or the water in the ice grid is directly controlled, and then the refrigerant continues to flow into the evaporator, and the room temperature ice cubes of -2°C to -15°C are continued to be cooled and refrigerated through the ice column or the ice grid. Since the suspended exposed ice cubes or the waterless ice cubes in the ice grid no longer increase, the ice cubes on the ice column or the ice grid reach low-temperature ice of -15°C to -30°C, which is close to the evaporator. That is, low-temperature ice of -15°C to -30°C is prepared by secondary cooling of the ice cubes on the ice column or the ice grid.

[0023] That is, when the ice cubes on the ice column or in the ice tray are of the same size, the ice water in the ice box is emptied or the water supply to the ice tray is stopped, so that the shape of the ice particles of the room temperature ice cubes will not continue to grow. The cold energy can be continuously stored, and the cold energy of the evaporator is transferred to the ice particles of the room temperature ice cubes under continued refrigeration, reaching low-temperature ice of -15~-30℃ close to that of the evaporator, thereby achieving a lower refrigeration temperature for ice cubes of the same particle size, effectively improving the density and cold energy of the made ice, and improving the consistency and quality of the made ice cubes.

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of the first embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Embodiment 1

[0029] An ice making method of an ice maker, the ice maker comprises a box, an ice making assembly, an ice-removing assembly, an ice-making box and a pumping device, wherein the ice making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-retaining cavity; the pumping device can pump water from the water-retaining cavity into the ice-making box; the ice making assembly makes ice at an evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and ice-removing. Figure 1 As shown, the ice making method comprises the following steps:

[0030] S1, the ice box moves to the ice making state position;

[0031] S2, the water pumping device pumps the water in the water chamber into the ice box;

[0032] S3, the ice-making component starts to work, the fans on the compressor and the condenser start to run, and the refrigerant flows into the ice-making column of the evaporator, so that the temperature of the outer wall of the ice-making column drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making column to form ice cubes;

[0033] S4, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the ice box is operated to the drainage state, the water in the ice box is emptied and flows back to the water storage cavity, and the ice cubes are directly suspended in the air. Since the suspended and exposed ice cubes no longer increase, the ice cubes can continue to store cold, and the temperature of the ice cubes can be further reduced;

[0034] S5, after time t2, when the ice cubes reach the low temperature of -15~-30℃, the deicing component starts to work, the solenoid valve opens and the fan stops, and the high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice column rises to the ice melting temperature, the evaporator heats up to de-ice, and the ice cubes fall off the ice column;

[0035] S6, the ice box operates to push out ice cubes, completing the preparation of ice cubes.

[0036] Embodiment 2

[0037] An ice making method of an ice maker, the ice maker comprises a box, an ice making assembly, an ice-removing assembly, an ice-making grid and a pumping device, wherein the ice making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-holding cavity; the pumping device pumps water from the water-holding cavity to a diversion pipe, and the water flows through the ice-making grid after being divided and then returns to the water-holding cavity; the ice-making grid is fixedly assembled with an evaporator; the ice-making assembly makes ice at the evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes the high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and ice-removing. The difference between this embodiment and the first embodiment is that ice is made by water flowing obliquely from top to bottom through the ice-making grid, and the ice-making method comprises the following steps:

[0038] S1, the water pumping device pumps the water in the water chamber to the diversion pipe and flows through the ice making grid;

[0039] S2, the ice-making component starts working, the fans on the compressor and the condenser start running, and the refrigerant flows into the ice-making grid of the evaporator, so that the temperature of the ice-making grid drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making grid to form ice cubes;

[0040] S3, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the pumping device stops supplying water, and the ice cubes no longer grow, so that the ice cubes can continue to store cold, and the temperature of the ice cubes is further reduced;

[0041] S4. After time t2, when the ice cubes reach a low temperature of -15~-30℃, the defrosting component starts to work, the solenoid valve opens and the fan stops, and the high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice grid rises to the ice-melting temperature, the evaporator heats up to defrost, and the ice cubes fall off the ice grid, completing the preparation of ice cubes.

[0042] In the above two embodiments, when the ice cubes on the ice column or in the ice tray are of the same size, the ice water in the ice box is emptied or the water supply to the ice tray is stopped, so that the ice particles of the room temperature ice cubes will not continue to grow, and the cold energy can be continuously stored. Under the condition of continued refrigeration, the cold energy of the evaporator is transferred to the ice particles of the room temperature ice cubes, and the low-temperature ice of -15~30℃ close to that of the evaporator is achieved, thereby achieving a lower refrigeration temperature for ice cubes of the same particle size, effectively improving the density and cold energy of the made ice, and improving the consistency and quality of the made ice cubes.

[0043] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An ice-making method of an ice-making machine, the ice-making machine comprising a box, an ice-making assembly, an ice-removing assembly, an ice-making box and a pumping device, wherein the ice-making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-containing cavity; the pumping device can pump water from the water-containing cavity into the ice-making box; the ice-making assembly makes ice at the evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes the high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and ice-removing, characterized in that: The ice making method comprises the following steps: S1, the ice box moves to the ice making state position; S2, the water pumping device pumps the water in the water chamber into the ice box; S3, the ice-making component starts to work, the fans on the compressor and the condenser start to run, and the refrigerant flows into the ice-making column of the evaporator, so that the temperature of the outer wall of the ice-making column drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making column to form ice cubes; S4, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the ice box is operated to the drainage state, the water in the ice box is emptied and flows back to the water storage cavity, and the ice cubes are directly suspended in the air, so that the ice particles of the room temperature ice cubes will not continue to grow. Since the ice cubes exposed in the air will no longer grow, the ice cubes can continue to store cold energy, and the cold energy of the evaporator is transferred to the ice particles of the room temperature ice cubes under continuous refrigeration, and the temperature of the ice cubes can be further reduced to reach low temperature ice close to that of the evaporator; S5, after time t2, when the ice cubes reach a low temperature of -15~-30℃, so that ice cubes of the same particle size have a lower refrigeration temperature, the de-icing component starts to work, the solenoid valve opens and the fan stops, and the high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice column rises to the ice melting temperature, the evaporator heats up to de-ice, and the ice cubes fall off the ice column; S6, the ice box operates to push out ice cubes, completing the preparation of ice cubes.

2. An ice making method of an ice maker, the ice maker comprises a box, an ice making assembly, an ice-removing assembly, an ice-making grid and a pumping device, wherein the ice making assembly and the ice-removing assembly are installed in a cavity of the box; the box is also provided with a water-holding cavity; the pumping device pumps water from the water-holding cavity to a diversion pipe, and the water flows through the ice-making grid after being divided and then returns to the water-holding cavity; the ice-making grid is fixedly assembled with an evaporator; the ice-making assembly makes ice at the evaporator through a refrigeration system composed of a compressor, a condenser, a capillary tube and an evaporator, and the ice-removing assembly passes the high-temperature exhaust gas of the compressor to the evaporator through an electromagnetic valve and a three-way pipe for heating and ice-removing, characterized in that: The ice making method comprises the following steps: S1, the water pumping device pumps the water in the water chamber to the diversion pipe and flows through the ice making grid; S2, the ice-making component starts working, the fans on the compressor and the condenser start running, and the refrigerant flows into the ice-making grid of the evaporator, so that the temperature of the ice-making grid drops to the freezing temperature, and the water gradually cools and solidifies on the surface of the ice-making grid to form ice cubes; S3, after time t1, when the temperature of the ice cubes reaches room temperature ice of -2~-15℃, the pumping device stops supplying water, and the ice cubes no longer grow, so that the ice particles of the room temperature ice cubes will not continue to grow, so that the ice cubes can continue to store cold energy, and continue to refrigerate to transfer the cold energy of the evaporator to the ice particles of the room temperature ice cubes, and the temperature of the ice cubes is further reduced to reach low temperature ice close to that of the evaporator; S4. After time t2, when the ice cubes reach a low temperature of -15~-30℃, the ice cubes of the same particle size have a lower refrigeration temperature. The deicing component starts to work, the solenoid valve opens and the fan stops. The high-temperature liquid or gas generated by the compressor is input into the evaporator through the three-way pipe, so that the outer wall temperature of the ice grid rises to the melting temperature. The evaporator heats up to de-ice, so that the ice cubes fall off the ice grid, and the preparation of ice cubes is completed.

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