CN-117367008-B - Refrigerator, ice maker and ice maker control method

CN117367008BCN 117367008 BCN117367008 BCN 117367008BCN-117367008-B

Abstract

The invention discloses a refrigerator, an ice maker and a control method of the ice maker. The ice maker comprises a box body, an ice making cavity is defined in the box body, the ice maker is arranged in the ice making cavity and comprises a driving mechanism, a die part, a first die part and a second die part, the die part and the second die part can be opened and form a die cavity when being closed, a demolding mechanism is arranged at a preset distance on the back side of the die part and is used for ejecting ice cubes on the inner side of the die part when the ice maker contacts the die part, and when the ice maker is powered off, a controller records the state of the ice maker, judges whether the first die part and the second die part are closed or not according to different states, and accordingly judges whether water exists in the die cavity and enters an ice making state. The technical means of the invention comprises the processes of the initialization movement and the ice removing movement of the ice making motor, can accelerate the first ice making time of a user, improves the reliability of the initialization movement, and simultaneously improves the ice removing effect and optimizes the complete time sequence of ice making through the motor movement control.

Inventors

LONG XIAOFEN
YAO HUIMIN
LU YUBO
HUANG ZHONGMING

Assignees

海信容声(广东)冰箱有限公司

Dates

Publication Date: 20260508
Application Date: 20220630

Claims (10)

1. An ice-making machine, comprising: The ice making device comprises a box body, wherein an ice making chamber is defined in the box body; an ice maker disposed within the ice making chamber, the ice maker comprising: A driving mechanism; a mold section comprising a first mold section, a second mold section, the first mold section and the second mold section being openable and forming a mold cavity when closed; The demolding mechanism is arranged at a preset distance on the back side of the mold part and is used for ejecting ice cubes on the inner side of the mold part when the demolding mechanism contacts the mold part; a controller for: recording the current state of the ice machine at the moment of power failure, and judging that water possibly exists in the current die cavity if the ice machine is in an ice making state or a water filling state and flow pulse feedback is detected in the water filling state; when the ice maker is electrified, judging whether the first die part and the second die part are in a closed state at present, if so, judging that water possibly exists in the die cavity, and if not, judging that no water exists in the die cavity; If the water in the die cavity is judged to be free at the moment of power failure and after power up, the die cavity is started to enter the water injection, ice making and ice removing states after the preset closing step number is stopped when the die part is judged to be in the closed state finally.
2. The ice-making machine of claim 1, wherein said controller is further configured to: The initialization state is that the driving mechanism is controlled to drive the die parts to move until the first die part and the second die part are opened firstly, and after the first die part and the second die part are opened to a preset step number, the first die part and the second die part are closed, and the die clamping state is kept; an ice making state, responding to an ice making control instruction until reaching a preset ice making time; When the preset ice making time is reached, executing a preset ice making instruction, and controlling the driving mechanism to drive the die part to move towards the demolding mechanism until the die part contacts the demolding mechanism, so that the demolding mechanism ejects ice cubes on the inner side of the die part; And in the water injection state, namely after the ice removing state is finished, the mold part is closed to keep the mold closing state, the water injection pipeline starts to inject water into the mold cavity to a preset amount, and then the mold stops, and the conventional ice making state is recycled.
3. The ice-making machine of claim 2, wherein said initialization state is only required to be performed once when said controller determines that there is no water in the mold cavity when said ice-making machine is powered up again after said power-off, said initialization state is not required to be performed when said controller determines that there is water in the mold cavity, and said conventional ice-making step is entered after said first power-up and then the ice-removing state is completed.
4. The ice-making machine of claim 3, wherein said normal ice-making state comprises said ice-making state, said ice-removing state and said water-filling state.
5. The ice maker of claim 1, wherein the controller has a power-off memory function for the state, the current state of the ice maker is written into a memory module in the controller when the ice maker is powered off, the state when the ice maker is powered off is read when the ice maker is powered on again, and meanwhile, the information such as flowmeter pulse is matched, and whether the die is closed after the ice maker is powered on is comprehensively judged.
6. The ice-making machine of claim 5, wherein when said machine is powered on, said mold is judged to be closed by a position switch or current information to which said mold is mounted.
7. The ice maker of claim 1, wherein said driving mechanism presets an initial movement speed for driving said mold portion to open and close in said initialized state as step_1, and presets an ice removal movement speed for driving said mold portion to open and close in said ice removal state as step_2, said ice removal movement speed step_2 being smaller than said initial movement speed step_1.
8. A control method of ice maker is characterized in that, The ice making device comprises a box body, wherein an ice making chamber is defined in the box body; an ice maker disposed within the ice making chamber, the ice maker comprising: A driving mechanism; a mold section comprising a first mold section, a second mold section, the first mold section and the second mold section being openable and forming a mold cavity when closed; The demolding mechanism is arranged at a preset distance on the back side of the mold part and is used for ejecting ice cubes on the inner side of the mold part when the demolding mechanism contacts the mold part; a controller for: recording the current state of the ice machine at the moment of power failure, and judging that water possibly exists in the current die cavity if the ice machine is in an ice making state or a water filling state and flow pulse feedback is detected in the water filling state; when the ice maker is electrified, judging whether the first die part and the second die part are in a closed state at present, if so, judging that water possibly exists in the die cavity, and if not, judging that no water exists in the die cavity; If the water in the die cavity is judged to be free at the moment of power failure and after power up, the die cavity is started to enter the water injection, ice making and ice removing states after the preset closing step number is stopped when the die part is judged to be in the closed state finally.
9. The method of controlling an ice maker of claim 8, wherein said controller is further configured to: The initialization state is that the driving mechanism is controlled to drive the die parts to move until the first die part and the second die part are opened firstly, and after the first die part and the second die part are opened to a preset step number, the first die part and the second die part are closed, and the die clamping state is kept; an ice making state, responding to an ice making control instruction until reaching a preset ice making time; When the preset ice making time is reached, executing a preset ice making instruction, and controlling the driving mechanism to drive the die part to move towards the demolding mechanism until the die part contacts the demolding mechanism, so that the demolding mechanism ejects ice cubes on the inner side of the die part; The water injection state, namely, after the ice removing state is completed, the mold part is closed to keep the mold closing state, the water injection pipeline starts to inject water into the mold cavity to a preset amount and then stops, and the conventional ice making step is repeated; And when the controller judges that water exists in the die cavity, the initialization state does not need to be executed, and when the ice machine is in the ice removing state after the first power-on is finished, the conventional ice making step is carried out.
10. The control method of an ice maker according to claim 9, wherein said driving mechanism sets in advance an initial movement speed for driving said mold portion to open and close in said initialized state to step_1, and sets in advance an ice removal movement speed for driving said mold portion to open and close in said ice removal state to step_2, said ice removal movement speed step_2 being smaller than said initial movement speed step_1.

Description

Refrigerator, ice maker and ice maker control method Technical Field The invention relates to the technical field of ice making control, in particular to a demolding control method for an ice maker, a refrigerator and ice cubes. Background In daily life, people may need to add ice cubes when drinking cold drinks or drinking, and market demands for ice makers and refrigerator products equipped with the ice makers are increasing. The basic principle of ice making is that water is injected into an ice making grid in an ice making machine, then cold energy is provided for the ice making room to make the water in the ice making grid form ice cubes, and then the ice cubes are demolded from the ice making grid and fall into an ice storage box for a user to take. With the increasing demand of consumers for ice making functions, different demands are put on the shape of ice cubes, such as special-shaped ice cubes which are formed by matching the spherical ice cubes or polyhedral ice cubes. In the actual use process, two die cavities of the ice maker are required to be tightly combined together when ice is made, and tightness is provided, otherwise, internal water can flow out from a gap between the two die cavities. And the ice making process is fully automatic, when the refrigerator is suddenly powered off, two mold cavities of the ice tray cannot be determined to be in a combined or open state, and whether water exists in the mold cavities cannot be determined. At this time, the ice maker usually defaults to have water in the mold cavity, and normal water injection is started to perform the subsequent ice making process after the ice making process is completed once. The ice grid with the cavity formed by the two molds is large in volume, so that the time for completing one-time complete ice making is long, the complete ice making and de-icing process can be performed for more than 20 hours according to the requirements of making transparent ice, and the production cost is high. Moreover, if the refrigerator is powered off in the using process, the situation that water exists in the ice tray is most likely to occur, and at the moment, if water is refilled, water filling overflows. Therefore, these different states need to be identified to determine whether or not to inject water after the first power-up. Meanwhile, in order to ensure that the home ice maker of a user is in a closed state, and meanwhile, the ice maker is convenient to check that the motion of the ice maker is normal, the two molds are normally required to be initialized, and the closed and pressed state of the two molds is the initial state, but if water exists in the ice maker, the water can leak out after the initialization action is performed after the power-on. Disclosure of Invention The embodiment of the invention aims to provide a refrigerator, an ice maker and an ice maker control method, which can accelerate the first ice making time of a user, improve the ice removing effect and optimize the complete time sequence of ice making through motor motion control. To achieve the above object, an embodiment of the present invention provides an ice maker, including: The ice making device comprises a box body, wherein an ice making chamber is defined in the box body; an ice maker disposed within the ice making chamber, the ice maker comprising: A driving mechanism; a mold section comprising a first mold section, a second mold section, the first mold section and the second mold section being openable and forming a mold cavity when closed; The demolding mechanism is arranged at a preset distance on the back side of the mold part and is used for ejecting ice cubes on the inner side of the mold part when the demolding mechanism contacts the mold part; a controller for: recording the current state of the ice machine at the moment of power failure, and judging that water possibly exists in the current die cavity if the ice machine is in an ice making state or a water filling state and flow pulse feedback is detected in the water filling state; when the ice maker is electrified, judging whether the first die part and the second die part are in a closed state at present, if so, judging that water possibly exists in the die cavity, and if not, judging that no water exists in the die cavity; If the water in the die cavity is judged to be free at the moment of power failure and after power up, the die cavity is started to enter the water injection, ice making and ice removing states after the preset closing step number is stopped when the die part is judged to be in the closed state finally. The controller is further configured to: The initialization state is that the driving mechanism is controlled to drive the die parts to move until the first die part and the second die part are opened firstly, and after the first die part and the second die part are opened to a preset step number, the first die part and the second die part are closed, and the die clamping