A refrigerator, an ice maker, and an ice maker control method

Abstract

The application discloses a refrigerator, an ice maker and an ice maker control method. The ice maker comprises a box body, and an ice making cavity is defined in the box body; the ice maker is arranged in the ice making cavity, and the ice maker comprises a driving mechanism, a mold part, a first mold part and a second mold part which can be opened and closed and form a mold cavity when being closed, and a demolding mechanism which is arranged at a predetermined distance from the back side of the mold part and is used for ejecting ice blocks on the inner side of the mold part when the demolding mechanism contacts the mold part; when the ice maker is powered off, a controller records the ice maker state, determines whether the first mold part and the second mold part are closed through different states, thereby determining whether there is water in the mold cavity, and entering an ice making state. The technical means of the application can accelerate the first ice making time of a user, improve the reliability of the initialization movement, improve the ice ejection effect through motor movement control, and optimize the complete timing of ice making.

Description

Technical Field

[0001] This invention relates to the field of ice-making control technology, and in particular to a method for controlling the demolding of ice makers, refrigerators, and ice blocks. Background Technology

[0002] In daily life, people may need to add ice when drinking cold beverages or alcohol, leading to a growing market demand for ice makers and refrigerators equipped with ice makers. The basic principle of ice making is: water is poured into the ice tray of the ice maker, then cold air is supplied to the ice chamber to freeze the water into ice cubes, which are then demolded from the ice trays and fall into the ice storage box for the user to use.

[0003] As consumers' demands for ice-making functions increase, different shapes of ice cubes have emerged, such as spherical or polyhedral ice cubes, which require mold fitting to form special shapes. In practical use, the two mold cavities of the ice maker must be tightly sealed during ice making; otherwise, water will leak out from the gap between the cavities. Furthermore, the ice-making process is fully automated. If the refrigerator suddenly loses power, it cannot determine whether the two mold cavities are closed or open, nor whether there is water inside. In this case, the ice maker usually assumes there is water in the mold cavities and completes one ice-making cycle before starting the normal water filling process for subsequent ice-making cycles. Because the ice tray formed by the two molds is usually large, the time required to complete one ice-making cycle is long. For transparent ice, the entire ice-making and unfreezing process can take more than 20 hours, resulting in high production costs.

[0004] Furthermore, if the refrigerator loses power during use, there is a high possibility that water may remain in the ice trays. Adding water in this situation would cause overflow. Therefore, it's necessary to identify these different states to determine whether water needs to be added upon initial power-on. Additionally, to ensure that all ice makers arriving at the user's home are in a closed state and to facilitate checking for proper operation, initialization is usually required. The initial state is when the two molds are closed and pressed together. However, if there is water in the ice maker, performing the initialization process after power-on will cause water leakage. Summary of the Invention

[0005] The purpose of this invention is to provide a refrigerator, an ice maker, and an ice maker control method. By controlling the movement of a motor, the initial ice-making time for the user can be accelerated, the ice removal effect can be improved, and the complete ice-making sequence can be optimized.

[0006] To achieve the above objectives, embodiments of the present invention provide an ice maker, comprising:

[0007] The box body, wherein an ice-making chamber is defined within the box body;

[0008] An ice maker, wherein the ice maker is disposed within the ice-making chamber, the ice maker comprising:

[0009] Drive mechanism;

[0010] The mold part includes a first mold part and a second mold part, wherein the first mold part and the second mold part can be opened and closed to form a mold cavity when closed;

[0011] The demolding mechanism is located at a predetermined distance on the back side of the mold and is used to push out the ice block inside the mold when it comes into contact with the mold.

[0012] Controller, used for:

[0013] The state of the ice maker is recorded at the moment of power failure. If the ice maker is in ice-making or water-filling state, and a flow pulse feedback is detected in the water-filling state, it is determined that there may be water in the mold cavity.

[0014] When the ice maker is powered on, it is determined whether the first mold and the second mold are in a closed state. If they are closed, it is determined that there may be water in the mold cavity. If they are not closed, it is determined that there is no water in the mold cavity.

[0015] If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is water in the mold cavity, and no initialization action is required; the process directly enters the ice-making state. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is no water in the mold cavity, and the process enters the initialization state. When the mold is determined to be in a closed state, the process stops after performing a preset number of closure steps and then begins the water injection, ice-making, and de-icing processes.

[0016] The controller is also used for:

[0017] In the initialization state, the drive mechanism is controlled to drive the mold part to move until the first mold part and the second mold part open first. After opening to a preset number of steps, the first mold part and the second mold part close and maintain the mold closed state.

[0018] In ice-making mode, it responds to ice-making control commands until the preset ice-making time is reached;

[0019] In the de-icing state, after the preset ice-making time is reached, a preset de-icing command is executed to control the drive mechanism to drive the mold to move toward the demolding mechanism until the mold contacts the demolding mechanism, so that the demolding mechanism pushes out the ice block inside the mold.

[0020] In the water injection state, that is, after the de-icing state is completed, the mold is closed to maintain the mold closed state, and the water injection pipeline starts to inject water into the mold cavity to a preset amount and then stops, repeating the regular ice-making state.

[0021] When the ice maker is powered off and then powered on again, the initialization state only needs to be executed once if the controller determines that there is no water in the mold cavity. If the controller determines that there is water in the mold cavity, the initialization state does not need to be executed. After the initial power-on and de-icing state is completed, the regular ice-making process begins.

[0022] The conventional ice-making state includes the ice-making state, the de-icing state, and the water-filling state.

[0023] The controller has a power failure memory function for the current state. When the ice maker loses power, it writes the current state into the memory module of the controller. When the power is restored, it reads the state at the time of power failure and, together with information such as flow meter pulses, comprehensively judges whether the module is closed after power is restored.

[0024] When the ice maker is powered on, it determines whether the mold is closed by using the position switch or current information installed on the mold.

[0025] The drive mechanism is preset to drive the module to open and close at an initial speed of STEP_1 in the initialization state, and is also preset to drive the module to open and close at an ice-removing speed of STEP_2 in the ice-removing state. The ice-removing speed STEP_2 is less than the initial speed STEP_1.

[0026] This invention also provides a control method for an ice maker, comprising:

[0027] The box body, wherein an ice-making chamber is defined within the box body;

[0028] An ice maker, wherein the ice maker is disposed within the ice-making chamber, the ice maker comprising:

[0029] Drive mechanism;

[0030] The mold part includes a first mold part and a second mold part, wherein the first mold part and the second mold part can be opened and closed to form a mold cavity when closed;

[0031] The demolding mechanism is located at a predetermined distance on the back side of the mold and is used to push out the ice block inside the mold when it comes into contact with the mold.

[0032] Controller, used for:

[0033] The state of the ice maker is recorded at the moment of power failure. If the ice maker is in ice-making or water-filling state, and a flow pulse feedback is detected in the water-filling state, it is determined that there may be water in the mold cavity.

[0034] When the ice maker is powered on, it is determined whether the first mold and the second mold are in a closed state. If they are closed, it is determined that there may be water in the mold cavity. If they are not closed, it is determined that there is no water in the mold cavity.

[0035] If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is water in the mold cavity, and no initialization action is required; the process directly enters the ice-making state. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is no water in the mold cavity, and the process enters the initialization state. When the mold is determined to be in a closed state, the process stops after performing a preset number of closure steps and then begins the water injection, ice-making, and de-icing processes.

[0036] The drive mechanism is preset to drive the module to open and close at an initial speed of STEP_1 in the initialization state, and is also preset to drive the module to open and close at an ice-removing speed of STEP_2 in the ice-removing state. The ice-removing speed STEP_2 is less than the initial speed STEP_1.

[0037] The controller is also used for;

[0038] In the initialization state, the drive mechanism is controlled to drive the mold part to move until the first mold part and the second mold part open first. After opening to a preset number of steps, the first mold part and the second mold part close and maintain the mold closed state.

[0039] In ice-making mode, it responds to ice-making control commands until the preset ice-making time is reached;

[0040] In the de-icing state, after the preset ice-making time is reached, a preset de-icing command is executed to control the drive mechanism to drive the mold to move toward the demolding mechanism until the mold contacts the demolding mechanism, so that the demolding mechanism pushes out the ice block inside the mold.

[0041] In the water injection state, that is, after the de-icing state is completed, the mold is closed to maintain the mold closed state, and the water injection pipeline starts to inject water into the mold cavity to a preset amount and then stops, repeating the conventional ice-making steps.

[0042] When the ice maker is powered off and then powered on again, the initialization state only needs to be executed once if the controller determines that there is no water in the mold cavity. If the controller determines that there is water in the mold cavity, the initialization state does not need to be executed. After the initial power-on and de-icing state is completed, the regular ice-making process begins.

[0043] Compared with the prior art, the ice maker disclosed in this invention includes a housing, within which an ice-making chamber is defined; an ice maker disposed within the ice-making chamber, the ice maker comprising: a drive mechanism; a mold section, a first mold section and a second mold section being openable and closing to form a mold cavity; and a demolding mechanism disposed at a predetermined distance on the back side of the mold section, used to push out ice blocks inside the mold section when it contacts the mold section. When the ice maker is powered off, the controller records the state of the ice maker, and determines whether the first and second mold sections are closed based on different states, thereby determining whether there is water in the mold cavity and the next ice-making process. The technical means of this invention, including the initial movement of the ice-making motor and the ice-removal movement process, can speed up the user's first ice-making time, improve the reliability of the initial movement, and simultaneously improve the ice-removal effect and optimize the complete ice-making sequence through motor movement control. Attached Figure Description

[0044] Figure 1 This is a structural diagram of a refrigerator with its door in an open state according to some embodiments;

[0045] Figure 2 This is a schematic diagram of a cold air supply device for a refrigerator according to some embodiments;

[0046] Figure 3 This is a structural diagram of an ice maker according to some embodiments;

[0047] Figure 4 This is a structural diagram of an ice maker in a closed state according to some embodiments;

[0048] Figure 5 This is a structural diagram of an ice maker in a separated state according to some embodiments;

[0049] Figure 6 This is an exploded view of the housing and mold of an ice maker according to some embodiments;

[0050] Figure 7 This is a flowchart illustrating the operations performed by the controller of an ice maker according to some embodiments;

[0051] Figure 8 This is a schematic flowchart of an ice-making process according to some embodiments;

[0052] Figure 9 This is a flowchart illustrating the work performed by the controller of the ice maker according to some other embodiments;

[0053] Figure 10 This is a flowchart illustrating the specific operations performed by the controller of the ice maker according to some other embodiments;

[0054] 10. Housing; 100. Upper side panel; 101. Opening; 1011. Ice maker; 1001. Left side panel; 102. Right side panel; 103. Front side panel; 104. Horizontal partition; 11. Upper storage compartment; 12. Lower storage compartment; 13. Controller; 14. Cold air supply device; 20. Compressor; 21. Condenser; 22. Expansion device; 23. Evaporator; 24. Door; 30. 200 housing; 210 first shell portion; 211 first groove; 212 first through hole; 220 second shell portion; 221 second groove; 222 second through hole; 250 clearance opening; 300 water injection assembly; 301 water inlet; 302 water passage hole; 310 first mold portion; 311 first cavity; 312 first joint portion; 320 second mold portion; 321 second cavity; 322 second joint portion; 400 mold shell; 401 first sub-mold shell; 402 second sub-mold shell; 410 first ejector rod; 420 second ejector rod; 430 first heating mechanism; 440 second heating mechanism; 500 drive mechanism; 510 motor; 600 water tank; 601 water outlet; 602 water distribution pipe. Detailed Implementation

[0055] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] It should be understood that the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0057] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will be further explained and described below with reference to the accompanying drawings and specific embodiments. The step numbers in the embodiments of the present invention are only for ease of explanation and do not limit the order of the steps. The execution order of each step in the embodiments can be adaptively adjusted according to the understanding of those skilled in the art.

[0059] In describing some embodiments, the terms "coupled" and "connected," and their derivative expressions, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact with each other. Similarly, the term "coupled" may be used in describing some embodiments to indicate that two or more components have direct physical or electrical contact. However, the terms "coupled" or "communication coupling" may also refer to two or more components that do not have direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0060] Define the side of refrigerator 1 that faces the user when in use as the front side, and the opposite side as the rear side.

[0061] One embodiment of this disclosure provides a refrigerator 1, such as Figure 1 and Figure 2 As shown, refrigerator 1 includes a cabinet 100, an ice maker 200, a water injection assembly 300, and a defrosting assembly 400.

[0062] In some embodiments, refer to Figure 1 and Figure 2 The refrigerator 1 includes: a cabinet 10, a cold air supply device 20, and a door 30. The cabinet 10 includes a storage compartment, and the cold air supply device 20 is configured to cool the storage compartment; the door 30 is configured to open and close the storage compartment.

[0063] The cold air supply unit 20 cools the storage compartment by exchanging heat with the outside of the housing 10. For example... Figure 2 As shown, the cold air supply device 20 includes a compressor 21, a condenser 22, an expansion device 23, and an evaporator 24, and circulates the refrigerant in the order of compressor 21, condenser 22, expansion device 23, evaporator 24, and compressor 21 to cool the storage compartment.

[0064] For example, the evaporator 24 may be configured to contact the outer wall of the storage compartment to directly cool the storage compartment. In some embodiments, the cold air supply device 20 may also include a circulating fan to circulate air in the storage compartment through the evaporator 24 and the circulating fan.

[0065] The housing 10 includes a transverse partition 11 located at the middle position along the height direction, wherein the height direction is referenced to... Figure 1 The horizontal partition 11 is located along the vertical direction. Figure 1 It extends horizontally. The approximate position of the horizontal partition 11 is referenced... Figure 1 As shown in the dashed box, the storage compartment is divided into an upper storage compartment 12 and a lower storage compartment 13 by a horizontal partition 11. In some embodiments, the upper storage compartment 12 serves as a freezer compartment for storing food in a freezing mode, and the lower storage compartment 13 serves as a refrigerator compartment for storing food in a refrigeration mode; in other embodiments, the upper storage compartment 12 serves as a refrigerator compartment for storing food in a refrigeration mode, and the lower storage compartment 13 serves as a freezer compartment for storing food in a freezing mode.

[0066] In addition, the refrigerator 1 may also include an ice maker 1001, enabling the refrigerator 1 to have an ice-making function, through which ice cubes or ice water can be provided to the user. In some embodiments, the ice maker 1001 is directly located in the freezer compartment, in which case the freezer compartment is the ice-making chamber. Figure 1 An example is shown where the ice maker 1001 is located in the upper storage compartment 12 (i.e., the freezer compartment). Alternatively, the ice maker 1001 can be located in a separate ice-making chamber defined by an insulation panel within the refrigerator or freezer compartment.

[0067] The door 30 is pivotally connected to the housing 10 to open or close the storage compartment by rotation. For example, the door 30 may be hinged to the front end of the housing 10. Figure 1 Four doors 30 are shown in the figure.

[0068] See Figure 3 The ice maker 1001 includes a base 100, a mold shell 400 (including a shell 200 and a mold body 300) and a drive mechanism 500.

[0069] The base 100 is configured to connect to the ice-making chamber. For example... Figure 4 As shown, the base 100 includes multiple side plates, such as an upper side plate 101, a left side plate 102, a right side plate 103, a front side plate 104, and a rear side plate. The left side plate 102 and right side plate 103 are opposite each other in the left-right direction, and the front side plate 104 and rear side plate are opposite each other in the front-back direction. The upper side plate 101 is located above the left side plate 102, right side plate 103, front side plate 104, and rear side plate. The terms "upper," "front," "back," "left," and "right" mentioned in some embodiments of this disclosure are defined for clarity of structural description; in actual installations, the base 100 is not limited to these directions. Figure 3 The front-to-back orientation shown is located within the ice-making chamber.

[0070] In some embodiments, such as Figure 3 , Figure 4 and Figure 6As shown, the mold shell 400 includes a first sub-mold shell 401 and a second sub-mold shell 402, which can be switched between a separated state and a closed state. In the closed state, the first sub-mold shell 401 and the second sub-mold shell 402 form a mold cavity, the shape of which is the shape of an ice block. The shape of the mold cavity can be adaptively designed according to the user's needs, for example, the mold cavity can be designed as a sphere, a diamond-faceted sphere, or a polyhedron, etc.

[0071] In some embodiments, both the first sub-mold 401 and the second sub-mold 402 are movable, allowing them to switch between a separated state and a closed state. In the separated state, the first sub-mold 401 and the second sub-mold 402 move away from each other; in the closed state, the first sub-mold 401 and the second sub-mold 402 move towards each other until they close together.

[0072] Figure 3 The first sub-mold 401 and the second sub-mold 402 are shown in the closed state. Figure 4 The first sub-mold 401 and the second sub-mold 402 are shown to be in a separated state.

[0073] The scheme in which the mold shell 400 includes more sub-mold shells is similar to the scheme in which the mold shell 400 includes the first sub-mold shell 401 and the second sub-mold shell 402, and will not be described again here.

[0074] In some embodiments, the mold shell 400 includes a shell 200 and a mold body 300; in some embodiments, the mold shell 400 includes only the mold body 300.

[0075] like Figure 4 As shown, in some embodiments, the housing 200 includes a first housing portion 210 and a second housing portion 220 disposed opposite to each other. For example, the first housing portion 210 and the second housing portion 220 are located in... Figure 6 As shown, the first shell portion 210 is located on the M side of the housing 200, and the second shell portion 220 is located on the N side of the housing 200, with the MN direction corresponding to the right-left direction of the housing 200. The inner wall of the first shell portion 210 has a first inner cavity 212 (see reference). Figure 6 The first shell portion 210 has a first inner cavity, and the inner wall of the second shell portion 220 has a second inner cavity. The second inner cavity is disposed opposite to the first inner cavity 212, and the second inner cavity and the first inner cavity 212 can adopt similar structures. The first shell portion 210 and the second shell portion 220 can be switched between a separated state and a closed state. In the closed state, the first shell portion 210 and the second shell portion 220 close together to form an inner cavity. The inner cavity is defined by the first inner cavity 212 and the second inner cavity, and can be opened and closed, and is formed when closed.

[0076] See Figure 3 and Figure 4 The mold body 300 is disposed in the inner cavity, and the mold body 300 includes a first mold part 310 and a second mold part 320.

[0077] The first mold portion 310 is connected to the first shell portion 210 so that the first mold portion 310 moves with the first shell portion 210. For example, the first mold portion 310 is attached to the first inner cavity 212 of the first shell portion 210, and the first mold portion 310 has a first recess 311 (see reference). Figure 6 The first cavity 311 is located on the side of the first mold 310 facing the second mold 320, and can move with the first shell 210.

[0078] The second mold portion 320 is connected to the second shell portion 220 to fix the second mold portion 320 relative to the second shell portion 220. For example, the second mold portion 320 is attached to the second inner cavity of the second shell portion 220, and the second mold portion 320 has a second recess 321 (see reference). Figure 6 The second cavity 321 is located on the side of the second mold portion 320 facing the first mold portion 310 and can move with the second shell portion 220. The first mold portion 310 and the second mold portion 320 can switch between a separated state and a closed state. In the closed state, the first mold portion 310 and the second mold portion 320 form a mold cavity when closed, and the mold cavity is defined by the first cavity 311 and the second cavity 321.

[0079] See Figure 6 The first shell portion 210 is provided with a first groove 211, which is located on the side of the first shell portion 210 near the second shell portion 220; the second shell portion 220 is provided with a second groove 221, which is located on the side of the second shell portion 220 near the first shell portion 210. When the first shell portion 210 and the second shell portion 220 are in the closed state, the first groove 211 and the second groove 221 form a clearance opening 250 surrounding the outer periphery of the water inlet 301, and the water inlet 301 is located within the clearance opening 250.

[0080] In some embodiments, see Figure 6 The first cavity 311 of the first mold portion 310 is provided with a first connecting portion 312 (not shown in the figure) at its edge, and the second cavity 321 of the second mold portion 320 is provided with a second connecting portion 322 (not shown in the figure) at its edge. The second connecting portion 322 is configured to fit with the first connecting portion 312.

[0081] For example, one of the first joint portion 312 and the second joint portion 322 is a raised rib, and the other of the first joint portion 312 and the second joint portion 322 is a groove, which is adapted to the raised rib. In this way, the mutual cooperation between the first joint portion 312 and the second joint portion 322 helps to improve the mold fit between the first mold portion 310 and the second mold portion 320, and improves the appearance of the ice cube. This can effectively avoid the situation where the ice cube has a flange at the joint of the first mold portion 310 and the second mold portion 320, which would cause the ice cube to be irregular in shape and affect the appearance of the ice cube.

[0082] The shape of the mold cavity determines the shape of the resulting ice cube. The mold cavity can be designed according to user requirements, and can be spherical, diamond-faceted, or polyhedral, etc. Furthermore, in some embodiments, at least one of the first mold portion 310 and the second mold portion 320 is configured to deform under external force. For example, both the first mold portion 310 and the second mold portion 320 are made of food-grade silicone material that can deform under external force.

[0083] See Figure 4 The mold body 300 has a water inlet 301 (not shown) communicating with the mold cavity. The upper side plate 101 includes an opening 1011, which is located on the upper side plate 101 at a position corresponding to the water inlet 301. An external water pipe is adapted to pass through the opening 1011 and connect to the water inlet 301 to inject water into the mold cavity. For example, the opening 1011 is formed as a rectangular through hole that extends through the upper side plate 101 along the thickness direction.

[0084] In some embodiments, the mold body 300 includes a plurality of mold cavities. Figure 3 An example of a mold body 300 comprising three cavities is shown, each cavity including a water inlet 301. The ice maker 1001 includes a water tank 600. The water tank 600 is located above the housing 200 and includes a water distribution pipe 602 and water outlets 601 corresponding to each water inlet 301. A water distribution pipe 602 (not shown in the figure) communicating with the water inlet 301 is provided at each water outlet 601. See also... Figure 4 The water tank 600 is fixed on the base 100, and an opening 1011 is provided on the upper side plate 101 at a position corresponding to the water tank 600. The multi-cavity configuration can increase the single ice production capacity of the ice maker 1001, and the water tank 600 with a water outlet 601 helps to improve water injection efficiency, thereby effectively improving ice production efficiency.

[0085] In other embodiments, multiple mold cavities are connected by water passages 302 (not shown in the figure). For example, the mold body 300 includes three mold cavities, with adjacent mold cavities connected by water passages 302, so that water injected into the mold cavities can circulate in different mold cavities, thereby making the amount of water in each mold cavity more uniform and helping to reduce the weight difference of the produced ice blocks.

[0086] Since the amount of water injected during ice making is constant, if water leaks during injection, the amount of water entering the mold cavity will decrease, resulting in ice blocks with a weight less than the preset weight, thus reducing the integrity of the ice blocks. In some embodiments, the water inlet 301 is formed in a closed shape, such as... Figure 6 As shown, for example, the structure defining the water inlet 301 is an annular structure, with the water inlet 301 defined on the inner side of the annular structure. The water inlet 301 is a funnel-shaped example. The closed shape of the water inlet 301 prevents leakage, thereby better ensuring the integrity of the ice block.

[0087] like Figure 6 As shown, the first sub-mold shell 401 includes a first shell portion 210 and a first mold portion 310. The drive mechanism 500 includes at least one of a first ejector rod 410 or a second ejector rod 420. The first ejector rod 410 or the second ejector rod 420 is provided in a one-to-one correspondence with the mold cavity.

[0088] See Figure 2 and Figure 4 A first push rod 410 is located on the back side of the first housing portion 210 at a first predetermined distance from the second housing portion 220. The first push rod 410 can be fixed to the left side plate 102. The back of the first housing portion 210 is provided with a first through hole 212, which is matched with the first push rod 410. For example, Figure 6 The first housing portion 210 includes a first through hole 212, and a first push rod 410 is provided at a first predetermined distance on the M side of the first housing portion 210. Figure 5 The first push rod 410 passes through the through hole 212.

[0089] The drive mechanism 500 also includes a second push rod 420, which is located at a second predetermined distance from the first housing 210 on the back side of the second housing 220. The second push rod 420 can be fixed to the right side plate 103. The back of the second housing 220 is provided with a second through hole 222 (see reference). Figure 4 The second through hole 222 matches the second push rod 420.

[0090] In some embodiments, see Figure 4The first ejector pin 410 has one end face adjacent to the first mold portion 310 that matches the contour surface of the first cavity of the first mold portion 310, and the second ejector pin 420 has one end face adjacent to the second mold portion 320 that matches the contour surface of the second cavity of the second mold portion 320. This allows the first ejector pin 410 to more closely press against the first mold portion 310, causing effective deformation of the first mold portion 310, and the second ejector pin 420 to more closely press against the second mold portion 320, causing effective deformation of the second mold portion 320, thereby demolding the ice block within the first mold portion 310 and the second mold portion 320.

[0091] The drive mechanism 500 is also configured to drive the first sub-mold shell 401 and the second sub-mold shell 402 to move. For example, the drive mechanism 500 is configured to drive the first shell portion 210 or the second shell portion 220 to open or close, such that the first shell portion 210 or the second shell portion 220 separates or closes, with the first mold portion 310 following the movement of the first shell portion 210, or the second mold portion 320 following the movement of the second shell portion 220. Figure 2 and Figure 3 The first shell portion 210 and the second shell portion 220 are respectively in a closed state. Figure 5 A schematic diagram of the structure when the first shell portion 10 and the second shell portion 220 are in a separated state.

[0092] In the actual ice-making process, when the first shell 210 separates from the second shell 220, ice may adhere to the first mold 310 or the second mold 320. In some embodiments, during demolding, the drive mechanism 500 drives the first shell 210 to a first predetermined position, and the first push rod 410 passes through the first through hole 212 and pushes against the first mold 310, causing the first mold 310 to deform under force. At the same time, the drive mechanism 500 drives the second shell 220 to a second predetermined position, and the second push rod 420 passes through the second through hole 222 and pushes against the second mold 320, causing the second mold 320 to deform under force. In other embodiments, during demolding, only one side of the first push rod 410 or the second push rod 420 passes through the first through hole 212 or the second through hole 222 and pushes against the first mold 310 or the second mold 320.

[0093] For example, such as Figure 5As shown, the drive mechanism 500 drives the first shell portion 210 to move toward the first push rod 410 to a first predetermined position, so that the first push rod 410 passes through the first through hole 212 and pushes against the first mold portion 310, causing the first mold portion 310 to deform under force, and the ice block in the first mold portion 310 is demolded. Furthermore, the drive mechanism 500 drives the second shell portion 220 to move toward the second push rod 420 to a second predetermined position, so that the second push rod 420 passes through the second through hole 222 and pushes against the second mold portion 320, causing the second mold portion 320 to deform under force, and the ice block in the second mold portion 320 is demolded. In other embodiments, the drive mechanism 500 only drives the movement of a component on one side to demold the ice block.

[0094] In some embodiments, during the actual ice-making process, when the first shell 210 and the second shell 220 separate, ice blocks may adhere to the first mold 310 or the second mold 320. The solution of this application thus ejects all ice blocks, regardless of whether they are located in the first mold 310 or the second mold 320, so that the ice blocks fall into the ice storage box of the refrigerator 1 for the user to take out, resulting in a better demolding effect.

[0095] This application discloses a refrigerator 1 according to some embodiments of the present disclosure, which includes an ice maker 1001. The ice maker 1001 has an ice tray, which includes a first sub-mold shell 401 and a second sub-mold shell 402. Both the first sub-mold shell 401 and the second sub-mold shell 402 are movable, so that the first sub-mold shell 401 and the second sub-mold shell 402 can be switched between a separated state and a closed state. The ice maker 1001 is suitable for manufacturing ice blocks of special shapes that require mold closing to form, such as spherical ice blocks or polyhedral ice blocks.

[0096] Furthermore, the first sub-mold shell 401 is movable, and a first ejector rod 410 is provided on the back side of the first sub-mold shell 401, away from the second sub-mold shell 402. The second sub-mold shell 402 is movable, and a second ejector rod 420 is provided on the side of the second sub-mold shell 402 away from the first sub-mold shell 401. During demolding, when the first sub-mold shell 401 moves to the first predetermined position, the first ejector rod 410 can eject the large ice block inside the first mold part 310 of the mold shell, regardless of which side it is located on; when the second sub-mold shell 402 moves to the second predetermined position, the second ejector rod 420 can eject the ice block inside the second mold part 320.

[0097] In some other embodiments of this application, two sets of drive mechanisms 500 can be used to control the first shell 210 and the second shell 220 respectively. When performing the de-icing operation, when at least one of the two shells moves to a predetermined position, the corresponding push rod of the shell can push out the large ice block regardless of which shell is located in the corresponding mold part. The demolding structure of this invention is simple and the demolding effect is reliable.

[0098] In other embodiments, specifically, the drive mechanism 500 is configured to drive the first sub-mold 401 to move, while the second sub-mold 402 remains stationary. For example, the drive mechanism 500 is configured to drive the first shell portion 210 to move, causing the first shell portion 210 to separate from or close with the stationary second shell portion 220 to form an opening and closing mechanism, with the first mold portion 310 following the movement of the first shell portion 210, and the second mold portion 320 following and remaining stationary relative to the second shell portion 220.

[0099] In some embodiments of this application, the same set of drive mechanisms 500 can be used to simultaneously control the opening and closing motion of the first shell 210 and the second shell 220. The opening and closing motion of the first shell 210 and the second shell 220 can include at least translational or rotational motion.

[0100] In some embodiments of this application, see Figure 2 The end face of the first ejector pin 410 matches the contour surface of the first mold part 310, and the end face of the second ejector pin 420 matches the contour surface of the second mold part 320, so that the ejector pin can more closely push against the mold part, causing the mold part to deform effectively, thereby demolding the ice block inside the mold part.

[0101] In some embodiments of this application, the mold body may have multiple mold cavities. The figure shows an example with three mold cavities, each with a water inlet 301. A water tank 600 is provided above the shell, and the water tank 600 has water outlets 601 corresponding to each water inlet 301. Water distribution pipes may extend from the water outlets 601 and communicate with the water inlets 301. See also... Figure 1 The water tank 600 can be fixed on the base 100, and the upper side plate 101 has an opening at the position corresponding to the water tank 600. The multi-cavity design increases the ice-making capacity of the ice maker per batch, and the water tank 600 with a water outlet 601 helps to improve water injection efficiency, thereby effectively improving ice-making efficiency.

[0102] In some embodiments of this application, the water inlet 301 is annular, preferably funnel-shaped, and formed on the first mold portion 310 or the second mold portion 320. This application changes the water inlet 301 from a two-part mold-closing method to a form formed solely on one of the mold portions. This avoids water leakage from the parting line of the water inlet 301 to the outside of the mold cavity during water injection, preventing mold adhesion and making it difficult to separate the first mold portion 310 and the second mold portion 320 during subsequent demolding, resulting in an unsmooth demolding process. Furthermore, since the amount of water injected during ice making is constant, if water leaks during injection, the amount of water entering the mold cavity decreases, resulting in smaller ice cubes and reduced ice cube integrity. Using the annular water inlet 301 of this application avoids leakage, thereby better ensuring the integrity of the ice cubes.

[0103] Understandably, the basic structure of the ice maker described above is only for illustrative purposes. In actual applications, corresponding components can be added or modified according to the actual situation, and no specific limitations are made here.

[0104] However, in actual use, during ice making, it is essential to ensure that the first mold section 310 and the second mold section 320 of the ice maker 1001 are tightly sealed together; otherwise, internal water will leak out from the gap between the first mold section 310 and the second mold section 320. Furthermore, the ice-making process is fully automated. When the refrigerator suddenly loses power, it is impossible to determine whether the first mold section 310 and the second mold section 320 are closed or open, nor can it determine whether there is water in the cavity (i.e., the mold cavity) between the first mold section 310 and the second mold section 320. In this case, the ice maker 1001 typically assumes there is water in the mold cavity and completes one ice-making cycle before starting the normal water filling process for subsequent ice-making cycles.

[0105] Because the ice tray formed by the first mold 310 and the second mold 320 is usually large, the time required to complete one ice-making cycle is long. According to the requirements for making transparent ice, the entire ice-making and de-icing process can take more than 20 hours, resulting in high production costs. Furthermore, if the refrigerator loses power during use, there is a high possibility that water may remain in the mold cavity. If water is then added, it will overflow. Therefore, it is necessary to identify these different states to determine whether water needs to be added upon initial power-on. Simultaneously, to ensure that the first mold 310 and the second mold 320 of each ice maker 1001 are in a closed state, and to facilitate checking the normal operation of the ice maker 1001, initialization is usually required. The initial state is when the first mold 310 and the second mold 320 are closed and pressed together. However, if there is water in the ice maker 1001, the initialization process after power-on will cause water leakage. Therefore, it is necessary to first determine whether the mold cavity is closed before entering the initialization state.

[0106] The housing 10 also includes a controller 14, which is connected to the ice maker 1001, etc. Specifically, the controller 14 is connected to the drive mechanism 50 and the ice-making component, water injection component, etc., and is used to control the ice maker 1001 to complete water injection operation, cooling operation and demolding operation, etc.

[0107] Specifically, see Figure 8 This is a flowchart illustrating the operation of the controller 14 of the ice maker 1001 in one embodiment of the present invention. The controller 14 is used to execute steps S11 to S14:

[0108] S11. Initialization state: Control the drive mechanism to drive the first module 310 and the second module 320 to move until the first module 310 and the second module 320 open first. After opening to a preset number of steps, the first module 310 and the second module 320 close and maintain the mold closed state.

[0109] S12, Ice-making state, responding to ice-making control commands until the preset ice-making time is reached;

[0110] S13, De-icing state: After the preset ice-making time is reached, a preset de-icing command is executed, controlling the drive mechanism 500 to drive the first mold 310 and / or the second mold 320 to move toward the first push rod 410 and / or the second push rod 420 until the first mold 310 and / or the second mold 320 contact the first push rod 410 and / or the second push rod 420, so that the demolding mechanism (i.e., the first push rod 410 and the second push rod 420) pushes out the ice block inside the first mold 310 and / or the second mold 320.

[0111] S14, Water Injection State: After the de-icing state is completed, the first mold section 310 and the second mold section 320 are closed to maintain the mold closed state. In response to the water injection command, the controller 14 controls the water injection pipeline to start injecting water into the mold cavity to the preset amount and then stops. The cycle continues to enter steps S12-S14 in sequence.

[0112] The aforementioned status controller 14 has a power-off memory function. When the cabinet 10 is powered off, the current status is written into the memory module of the controller 14. When the power is restored, the controller 14 reads the status at the time of power failure and, together with information such as the flow meter pulse, makes a comprehensive judgment as the basis for the status of the ice maker 1001 after power is restored.

[0113] Furthermore, when the cabinet 10 is powered off and then powered on again, the S11 initialization state will only be executed once if the controller 14 determines that there is no water in the mold cavity. However, the entire ice-making process after power-on only requires the execution of the S11 initialization state once, and only when the controller 14 determines that there is no water in the mold cavity will the S11 initialization state be executed once. It is not that the ice maker 1001 will execute the initialization state every time the cabinet 10 is powered off and then powered on again. The normal ice-making procedure means that the ice maker 1001 responds to the user's ice-making command, and the ice maker 1001 sequentially enters the water filling, ice making, and ice removal states, executing the water filling, ice making, and ice removal actions for a preset time.

[0114] After the ice-making process is completed upon the first power-on after the cabinet 10 is powered off, when the user subsequently needs to make ice, the ice maker 1001 sends an ice-making control command to the controller 14 through a preset human-machine interaction system, such as a touch screen or voice module. The ice maker 1001 responds to the ice-making control command, and the controller 14 continuously sends S12-S13 ice-making control commands to the ice maker 1001 to perform corresponding ice-making operations. These operations include controlling the drive mechanism 500 to drive the first mold 310 and the second mold 320 to move until the first mold 310 and the second mold 320 are closed, controlling the water injection mechanism to inject water into the mold cavity formed by the first mold 310 and the second mold 320, and controlling the refrigeration system to perform refrigeration and provide cooling to the mold cavity.

[0115] Specifically, see Figure 7 This is a flowchart illustrating the operation of the controller 14 of the ice maker 1001 in one embodiment of the present invention, wherein the controller 14 is used to execute steps S1 to S4:

[0116] S1. The ice maker 1001 is recorded at the moment of power failure of the cabinet 10. If the ice maker 1001 is in ice making state or water filling state, and a flow pulse feedback is detected during the water filling process, it is determined that there may be water at present.

[0117] S2. When the refrigerator is powered on, determine whether the first mold 310 and the second mold 320 are in a closed state. If they are closed, determine that there may be water in the mold cavity. If they are not closed, determine that there is no water in the mold cavity.

[0118] S3. Combining the judgments of S1 and S2, if it is determined that there may be water in the mold cavity, then it is determined that there is water in the mold cavity, and the initialization action S11 is no longer performed, and the ice-making state S12 is directly entered.

[0119] S4. If it is determined that there is no water in the mold cavity in conjunction with S1 and S2, then the ice maker 1001 enters the initialization state S11. After determining that the first mold part 310 and the second mold part 320 are finally in the closed state, the closing action is performed for a preset number of steps and then stopped. Then it enters the water injection state S14. After water injection, it enters the ice making state S12 and the ice removal state S13.

[0120] It is worth noting that when the ice maker 1001 is powered on, it is necessary to determine whether the first mold 310 and the second mold 320 are in a closed state to predict whether there is water in the mold cavity. Specifically, this is done by using the position switches installed on the first mold 310 and the second mold 320 or by identifying the current of the motor to determine whether the two molds are closed during the closing process.

[0121] In this embodiment of the invention, when the housing 10 suddenly loses power, the controller 14 will by default record the state of the ice maker 1001 at the moment of power failure. If the ice maker 1001 is in the initialization state at this time, there is no need to make a judgment in S1, and the process will directly proceed to step S2. Subsequently, the ice maker 1001 will start to respond to the ice making command, and the first module 310 and the second module 320 will close.

[0122] If the ice maker 1001 is in the S13 de-icing state the instant the refrigerator is powered off, there is no water in the mold cavity at this time, only ice or it is empty. After the ice maker 1001 starts responding to the ice making command, it will determine whether the two mold cavities are in the closed or open state after power is restored. That is, after performing step S11 once, it will ensure that the first mold part 310 and the second mold part 320 are in the closed state, and then continue to enter the normal de-icing state S13.

[0123] Optionally, the movement speed of the drive mechanism 500 of the ice maker 1001 can be adjusted during the complete ice-making process. Since the running speed of the motor 510 of the drive mechanism 500 is inversely proportional to the output torque, when the motor 510 of the drive mechanism 500 runs at a fast speed, the output torque is smaller, and when the motor 510 of the drive mechanism 500 runs at a slow speed, the output torque is larger. During ice removal, the heater first heats the ice to slowly melt it, and then the motor 510 opens the mold. At this time, the motor 510 should be running at a slow speed but with greater torque to make demolding easier.

[0124] The initial speed at which the drive mechanism 500 drives the first module 310 and the second module 320 to open and close in the initialization state is preset to be [value missing]. Simultaneously, the de-icing motion speed of the drive mechanism 500 driving the first module 310 and the second module 320 to open and close in the de-icing state is preset to be... It should be noted that the speed of the ice-breaking movement... Less than the initial velocity .

[0125] Understandably, the initial velocity is and the speed of the ice removal movement is The settings are pre-calculated and pre-defined, and can be adjusted according to the actual situation such as the structural dimensions of the ice maker 1001. No specific limitations are made here.

[0126] like Figure 9 and Figure 10As shown, in another embodiment, during the process of driving the first mold 310 and / or the second mold 320 to move toward the demolding mechanism, before the first mold 310 and / or the second mold 320 come into contact with the demolding mechanism, the heating mechanism is activated to heat the first mold 310 and / or the second mold 320, so that the ice on the inner surface of the first mold 310 and / or the second mold 320 melts. Thus, when the first mold 310 and / or the second mold 320 come into contact with the demolding mechanism, the demolding mechanism can more easily push out the ice on the inner side of the first mold 310 and / or the second mold 320, so as to achieve smooth de-icing.

[0127] Specifically, the first module 310 and the second module 320 in this invention can move individually or together.

[0128] It should be noted that the refrigerator operates through the refrigeration system, providing cooling capacity to the storage compartment to maintain it at a constant low temperature. Specifically, the refrigeration system of the refrigerator in this embodiment consists of a compressor, a condenser, a dryer filter, a capillary tube, and an evaporator. The operation of the refrigeration system includes a compression process, a condensation process, a throttling process, and an evaporation process.

[0129] The compression process is as follows: When the refrigerator is plugged in and there is a need for cooling, the compressor starts working. Low-temperature, low-pressure refrigerant is drawn into the compressor and compressed into high-temperature, high-pressure superheated gas in the compressor cylinder before being discharged into the condenser. The condensation process is as follows: The high-temperature, high-pressure refrigerant gas dissipates heat through the condenser, and its temperature continuously decreases until it is gradually cooled into room-temperature, high-pressure saturated vapor, and further cooled into saturated liquid. The temperature at this point is no longer decreasing; this temperature is called the condensation temperature. The pressure of the refrigerant remains almost constant throughout the entire condensation process. The throttling process is as follows: After condensation, the saturated refrigerant liquid is filtered through a dryer to remove moisture and impurities before flowing into a capillary tube. Through this tube, it undergoes throttling and pressure reduction, turning the refrigerant into room-temperature, low-pressure wet vapor. The evaporation process is as follows: Subsequently, the refrigerant begins to absorb heat and vaporize in the evaporator, which not only lowers the temperature of the evaporator and its surroundings but also turns the refrigerant into a low-temperature, low-pressure gas. The refrigerant exiting the evaporator returns to the compressor, repeating the above process to transfer heat from inside the refrigerator to the outside air, thus achieving the purpose of cooling.

[0130] It should be noted that the ice maker inside the refrigerator provided in this embodiment of the invention has the same structure and execution process steps as the ice maker in the above embodiment. The working principle and beneficial effects of the two correspond one-to-one, so they will not be described again.

[0131] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An ice maker, characterized in that, include: The box body, wherein an ice-making chamber is defined within the box body; An ice maker, wherein the ice maker is disposed within the ice-making chamber, the ice maker comprising: Drive mechanism; The mold part includes a first mold part and a second mold part, wherein the first mold part and the second mold part can be opened and closed to form a mold cavity when closed; The demolding mechanism is located at a predetermined distance on the back side of the mold and is used to push out the ice block inside the mold when it comes into contact with the mold. Controller, used for: The state of the ice maker is recorded at the moment of power failure. If the ice maker is in ice-making or water-filling state, and a flow pulse feedback is detected in the water-filling state, it is determined that there may be water in the mold cavity. When the ice maker is powered on, it is determined whether the first mold and the second mold are in a closed state. If they are closed, it is determined that there may be water in the mold cavity. If they are not closed, it is determined that there is no water in the mold cavity. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is water in the mold cavity, and no initialization action is required; the process directly enters the ice-making state. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is no water in the mold cavity, and the process enters the initialization state. When the mold is determined to be in a closed state, the process stops after performing a preset number of closure steps and then begins the water injection, ice-making, and de-icing processes.

2. The ice maker as described in claim 1, characterized in that, The controller is also used for: In the initialization state, the drive mechanism is controlled to drive the mold part to move until the first mold part and the second mold part open first. After opening to a preset number of steps, the first mold part and the second mold part close and maintain the mold closed state. In ice-making mode, it responds to ice-making control commands until the preset ice-making time is reached; In the de-icing state, after the preset ice-making time is reached, a preset de-icing command is executed to control the drive mechanism to drive the mold part to move towards the demolding mechanism until the mold part contacts the demolding mechanism, so that the demolding mechanism pushes out the ice block inside the mold part; In the water injection state, that is, after the de-icing state is completed, the mold is closed to maintain the mold closed state, and the water injection pipeline starts to inject water into the mold cavity to a preset amount and then stops, repeating the regular ice-making state.

3. The ice maker as described in claim 2, characterized in that, When the ice maker is powered off and then powered on again, the initialization state only needs to be executed once if the controller determines that there is no water in the mold cavity. If the controller determines that there is water in the mold cavity, the initialization state does not need to be executed. After the initial power-on and de-icing state is completed, the regular ice-making process begins.

4. The ice maker as described in claim 3, characterized in that, The conventional ice-making state includes the ice-making state, the de-icing state, and the water-filling state.

5. The ice maker as described in claim 1, characterized in that, The controller has a power failure memory function for the current state. When the ice maker loses power, it writes the current state into the memory module of the controller. When the power is restored, it reads the state at the time of power failure and, together with information such as flow meter pulses, comprehensively judges whether the module is closed after power is restored.

6. The ice maker as described in claim 5, characterized in that, When the ice maker is powered on, it determines whether the mold is closed by using the position switch or current information installed on the mold.

7. The ice maker as described in claim 1, characterized in that, The drive mechanism is preset to drive the module to open and close at an initial speed of STEP_1 in the initialization state, and is also preset to drive the module to open and close at an ice-removing speed of STEP_2 in the ice-removing state. The ice-removing speed STEP_2 is less than the initial speed STEP_1.

8. A control method for an ice maker, characterized in that, The box body, wherein an ice-making chamber is defined within the box body; An ice maker, wherein the ice maker is disposed within the ice-making chamber, the ice maker comprising: Drive mechanism; The mold part includes a first mold part and a second mold part, wherein the first mold part and the second mold part can be opened and closed to form a mold cavity when closed; The demolding mechanism is located at a predetermined distance on the back side of the mold and is used to push out the ice block inside the mold when it comes into contact with the mold. Controller, used for: The state of the ice maker is recorded at the moment of power failure. If the ice maker is in ice-making or water-filling state, and a flow pulse feedback is detected in the water-filling state, it is determined that there may be water in the mold cavity. When the ice maker is powered on, it is determined whether the first mold and the second mold are in a closed state. If they are closed, it is determined that there may be water in the mold cavity. If they are not closed, it is determined that there is no water in the mold cavity. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is water in the mold cavity, and no initialization action is required; the process directly enters the ice-making state. If water is detected in the mold cavity both at the moment of power failure and after power is restored, it is determined that there is no water in the mold cavity, and the process enters the initialization state. When the mold is determined to be in a closed state, the process stops after performing a preset number of closure steps and then begins the water injection, ice-making, and de-icing processes.

9. The control method for an ice maker as described in claim 8, characterized in that, The controller is also used for: In the initialization state, the drive mechanism is controlled to drive the mold part to move until the first mold part and the second mold part open first. After opening to a preset number of steps, the first mold part and the second mold part close and maintain the mold closed state. In ice-making mode, it responds to ice-making control commands until the preset ice-making time is reached; In the de-icing state, after the preset ice-making time is reached, a preset de-icing command is executed to control the drive mechanism to drive the mold part to move towards the demolding mechanism until the mold part contacts the demolding mechanism, so that the demolding mechanism pushes out the ice block inside the mold part; In the water injection state, that is, after the de-icing state is completed, the mold is closed to maintain the mold closed state, and the water injection pipeline starts to inject water into the mold cavity to a preset amount and then stops, repeating the conventional ice making steps. When the ice maker is powered off and then powered on again, the initialization state only needs to be executed once if the controller determines that there is no water in the mold cavity. If the controller determines that there is water in the mold cavity, the initialization state does not need to be executed. After the initial power-on and de-icing state is completed, the regular ice-making process begins.

10. The control method for an ice maker as described in claim 9, characterized in that, The drive mechanism is preset to drive the module to open and close at an initial speed of STEP_1 in the initialization state, and is also preset to drive the module to open and close at an ice-removing speed of STEP_2 in the ice-removing state. The ice-removing speed STEP_2 is less than the initial speed STEP_1.

Images