Refrigerator

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator which comprises a refrigerator body, a refrigerator door and a refrigerator cover. The shell is arranged in the refrigeration chamber; the ice tray is arranged in the shell and is used for making ice; the refrigeration pipe is arranged in the shell and is used for cooling the ice cube tray; the pressing plate is arranged in the shell, and the pressing plate and the ice cube tray are arranged on the two sides of the refrigerating pipe respectively; and the control mechanism is arranged in the shell and is used for driving the pressing plate to move towards the refrigerating pipe and enabling the refrigerating pipe to abut against the ice cube tray, so that the refrigerating pipe is kept in a contact state with the ice cube tray. By arranging the control mechanism, the pressing plate can be installed in place through the control mechanism, workers do not need to manually install the pressing plate in place through bolts, the operation difficulty of the workers is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art

[0002] As people's living standards improve, the demand for ice cubes is increasing. In order to meet market needs, more and more refrigerator products are beginning to integrate ice maker components.

[0003] The ice maker assembly includes multiple components such as the shell, ice tray, refrigeration pipe and pressure plate. The ice tray, refrigeration pipe, pressure plate and other components are installed in the shell. At least a part of the refrigeration pipe extends out of the shell and is connected to the refrigeration cycle pipeline of the refrigerator. The pressure plate presses the refrigeration pipe on the ice tray to ensure the cooling effect of the ice tray.

[0004] Currently, the pressure plate is usually installed after the ice tray and refrigeration pipe are installed. The pressure plate is then delivered to the installation location and installed in place using bolts. However, the presence of the ice tray, refrigeration pipe, and ice maker assembly housing results in a small installation space, making operation difficult for workers and reducing installation efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a refrigerator capable of improving the installation efficiency of an ice maker assembly.

[0006] In order to achieve the above object, the utility model provides a refrigerator, comprising:

[0007] A box body having a refrigeration chamber therein;

[0008] a housing disposed in the refrigeration chamber;

[0009] An ice tray, disposed inside the housing and used for making ice;

[0010] a refrigeration pipe, at least a portion of which is disposed inside the housing and is used to cool the ice tray;

[0011] A pressure plate is arranged inside the shell, and the pressure plate and the ice tray are respectively arranged on both sides of the refrigeration tube;

[0012] The control mechanism is arranged inside the shell and is used to drive the pressing plate to move toward the refrigeration tube and press the refrigeration tube against the ice tray, so that the refrigeration tube maintains a contact state with the ice tray.

[0013] In some embodiments of the present application, the refrigerator further comprises:

[0014] The control mechanism includes a cam, a rotating shaft, and a connecting block, wherein the connecting block is provided on the ice tray, a movable groove is provided on the connecting block, and the movable groove has a third opening opening laterally. The cam is connected to the rotating shaft, and the rotating shaft is movably provided in the movable groove.

[0015] The cam has a first posture and a second posture, and the cam rotates to switch between the first posture and the second posture;

[0016] When the cam is in the first posture, the rotating shaft can drive the cam from the third opening into the movable groove, and the pressure plate is in the first state; when the cam is in the second posture, the cam presses against the pressure plate, forcing the pressure plate to switch to the second state.

[0017] In some embodiments of the present application:

[0018] The cam includes a cam body, a large circle portion, a small circle portion, and a handle provided on the cam body, wherein the large circle portion and the small circle portion are respectively provided on both sides of the cam body;

[0019] When the cam switches from the first posture to the second posture, the cam rotates until the small circle lifts up the pressure plate, and the cam continues to rotate until the small circle presses against the pressure plate near the edge of the handle. The pressure plate prevents the handle from continuing to move, and the cam is in the second posture.

[0020] In some embodiments of the present application:

[0021] The angle between the line connecting the centers of the large circle and the small circle and the extension direction of the handle is recorded as ∠a1, and the rotation angle of the cam when switching from the first posture to the second posture is recorded as ∠a2, satisfying: ∠a1>∠a2.

[0022] In some embodiments of the present application:

[0023] The connecting block is further provided with a limiting portion, and the limiting portion is located on a side of the movable groove away from the ice tray;

[0024] When the cam is in the second posture, the limiting portion can cooperate with the large circular portion to prevent the rotating shaft from leaving the movable slot through the third opening.

[0025] In some embodiments of the present application:

[0026] The radius of the large circle is recorded as R1 mm, and the radius of the small circle is recorded as R2 mm;

[0027] The limiting portion includes an extension section and a limiting section, the extension section extends along the extension direction of the movable groove, the limiting section is provided at one end of the extension section close to the third opening, the limiting section is arc-shaped, and the radius of the limiting section is recorded as R3 mm;

[0028] The length of the cam body in the direction perpendicular to the line connecting the centers of the large circle and the small circle is L1 mm;

[0029] The plane where the axis of the rotating shaft lies is recorded as a reference plane. The reference plane is parallel to the extension direction of the movable slot. The distance between the reference plane and the end of the limiting section is recorded as L2 mm, and the distance between the reference plane and the extension section is recorded as L4 mm.

[0030] Satisfies: L4>R1, R3>R1, R1>L1, L2>L1 / 2, R1>L2.

[0031] In some embodiments of the present application:

[0032] A supporting plate is provided on the pressing plate, and the supporting plate includes a connecting portion and an abutting portion. The connecting portion is connected to the pressing plate, and the abutting portion is provided on the connecting portion. The abutting portion is used to press the refrigeration pipe.

[0033] In some embodiments of the present application:

[0034] The pressing plate is provided with a through hole, the connecting block passes through the through hole, and the handle and the cam are both located on a side of the pressing plate away from the refrigeration pipe.

[0035] In some embodiments of the present application:

[0036] A recess is further provided on the plate surface of the pressure plate facing away from the refrigeration tube, and the through hole is provided in the recess. When the cam is in the second posture, the handle completely enters the recess.

[0037] The utility model also provides a refrigerator, comprising:

[0038] A box body having a refrigeration chamber therein;

[0039] a housing disposed in the refrigeration chamber;

[0040] An ice tray, disposed inside the housing and used for making ice;

[0041] a refrigeration pipe, at least a portion of which is disposed inside the housing and below the ice tray;

[0042] A pressure plate is arranged inside the shell and below the refrigeration pipe;

[0043] The control mechanism is arranged inside the shell and is used to drive the pressing plate to move upward and press the refrigeration tube against the ice tray, so that the refrigeration tube maintains a contact state with the ice tray.

[0044] Compared with the prior art, the refrigerator of the present invention has the following advantages:

[0045] The refrigerator of this utility model embodiment includes a cabinet, a shell, an ice tray, a refrigeration tube, a pressure plate, and a control mechanism. The control mechanism drives the pressure plate toward the refrigeration tube and presses the refrigeration tube against the ice tray to maintain contact between the refrigeration tube and the ice tray, ensuring that the refrigeration tube can directly exchange heat with the ice tray and maintain the cooling efficiency of the refrigeration tube on the ice tray. By providing the control mechanism, the control mechanism can install the pressure plate in place, eliminating the need for manual bolting of the pressure plate, reducing the operator's operational difficulty and improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 It is a partial structural diagram of a refrigerator according to an embodiment of the present utility model.

[0048] Figure 2 This is a schematic diagram showing that the refrigeration pipes, insulation components and other parts are pre-installed in the box before the ice maker assembly is installed according to an embodiment of the present invention.

[0049] Figure 3 yes Figure 2 Enlarged schematic diagram of point A in the middle.

[0050] Figure 4 Schematic diagram of some parts inside the ice maker assembly according to an embodiment of the present invention.

[0051] Figure 5 3 is a bottom schematic diagram of the pressing plate in a first posture according to an embodiment of the present invention.

[0052] Figure 6 yes Figure 5 Schematic diagram from another angle.

[0053] Figure 7 yes Figure 6 Enlarged schematic diagram of point B in the middle.

[0054] Figure 8 It is a schematic diagram of the coordination between the refrigeration cycle pipeline and the pressure plate according to an embodiment of the present invention.

[0055] Figure 9 3 is a bottom schematic diagram of the pressing plate in the second posture according to an embodiment of the present invention.

[0056] Figure 10 2 is a schematic structural diagram of a connection block according to an embodiment of the present invention.

[0057] Figure 11 2 is a schematic structural diagram of a cam according to an embodiment of the present invention.

[0058] Figure 12 It is a schematic diagram of the coordination between the refrigeration cycle pipeline and the ice tray according to an embodiment of the present invention.

[0059] Figure 13 4 is a side view of a connection block according to an embodiment of the present invention.

[0060] Figure 14 Schematic diagram of the cam in a first posture according to an embodiment of the present invention.

[0061] Figure 15 Schematic diagram of the cam in the second posture according to the embodiment of the present invention.

[0062] In the figure, 100, box liner; 200, shell; 300, ice tray; 400, refrigeration pipe; 500, pressure plate; 600, control mechanism.

[0063] 310, accommodating groove; 510, supporting plate; 520, supporting plate; 530, through hole; 540, recessed position; 511, connecting portion; 512, abutting portion; 610, cam; 620, connecting block; 630, handle; 640, rotating shaft; 650, reference plane; 611, cam body; 612, large circle portion; 613, small circle portion; 621, movable groove; 622, third opening; 623, limiting portion; 6231, extension section; 6232, limiting section. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0065] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0066] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0068] Please refer to Figure 1-3 The refrigerator of the preferred embodiment of the present invention includes: a box body, a shell 200, an ice tray 300, a refrigeration pipe 400, a pressure plate 500 and a control mechanism 600.

[0069] A refrigeration chamber is provided inside the box.

[0070] The box body includes an outer shell and a box liner 100 arranged inside the outer shell.

[0071] The outer shell and the inner chamber 100 form an installation space for installing other components of the refrigerator and forming a foam insulation layer. The interior of the inner chamber 100 forms a refrigeration chamber, that is, a cold storage room, a temperature-changing room or a freezer.

[0072] The housing 200 is disposed in the refrigeration chamber.

[0073] The housing 200 is a housing 200 of the ice maker assembly, and is used to separate the refrigeration chamber from the interior of the ice maker assembly.

[0074] Please refer to Figure 4The ice tray 300 is disposed inside the housing 200 and is used for making ice.

[0075] The ice maker assembly also serves as a water pipe to supply water to the ice tray 300. The refrigeration pipe 400 exchanges heat with the ice tray 300. After the water in the ice tray 300 freezes, a drive mechanism flips the ice tray 300 so that its opening faces downward, allowing the ice to be shed. An ice storage bin is typically located beneath the ice tray 300 to store any ice cubes that fall out of the ice tray 300. The refrigeration pipe 400 exchanges heat with the air inside the ice maker assembly, also ensuring a low temperature within the ice storage bin. The ice tray 300 is then returned to its original position, and the water pipe adds water to the ice tray 300, repeating the freezing process.

[0076] At least a portion of the refrigeration pipe 400 is disposed inside the housing 200 for cooling the ice tray 300 .

[0077] The refrigeration pipe 400 may be a part of the refrigeration cycle pipeline of the refrigerator, or may be the refrigeration pipe 400 provided with the ice maker assembly, and is connected to the refrigeration cycle pipeline when the ice maker assembly is installed.

[0078] The refrigerator includes a refrigeration cycle system for cooling the interior of the refrigerator 100. The refrigeration cycle generally includes components such as a compressor, a condenser, a filter drier, a capillary tube, and an evaporator, connected by refrigeration circuit piping. The refrigeration cycle operates through compression, condensation, throttling, and evaporation. Specifically, the compression process begins when the refrigerator is plugged in and the thermostat contacts are connected. Low-temperature, low-pressure refrigerant from the evaporator is drawn into the compressor, compressed into high-temperature, high-pressure superheated gas within the compressor cylinder, and then discharged into the condenser. The condensation process involves the high-temperature, high-pressure refrigerant gas dissipating heat through the condenser, gradually cooling to a saturated vapor at room temperature and high pressure. This temperature then continues to drop, and the refrigerant pressure remains nearly constant throughout the condensation process. The throttling process involves the condensed saturated refrigerant liquid being filtered by the filter drier to remove moisture and impurities, then flowing into the capillary tube. The throttling process reduces the pressure of the refrigerant through the capillary tube, turning it into a wet vapor at room temperature and low pressure. The evaporation process is as follows: wet steam at room temperature and low pressure enters the evaporator, begins to absorb heat and vaporizes, lowering the temperature of the evaporator and its surroundings, allowing the refrigeration chamber to be cooled, and turning the refrigerant into a low-temperature, low-pressure gas. The refrigerant that comes out of the evaporator returns to the compressor again, repeating the above process. Energy conversion is carried out through the change in the state of the refrigerant, and the heat in the refrigerator is transferred to the air outside the box, thereby realizing the refrigeration cycle of the refrigerator. When the evaporator is arranged on the wall of the refrigeration chamber, it is a direct cooling refrigerator; when the evaporator is arranged in the air duct of the refrigerator, it is an air-cooled refrigerator. The above-mentioned structural settings and operating principles of the refrigerator refrigeration cycle system are all prior art and will not be repeated in this application.

[0079] The refrigeration pipe 400 is usually against the bottom of the ice tray 300 , that is, the refrigeration pipe 400 is located below the ice tray 300 .

[0080] The pressing plate 500 is disposed inside the housing 200 , and the pressing plate 500 and the ice tray 300 are respectively disposed on both sides of the refrigeration tube 400 .

[0081] The pressing plate 500 is used to press the refrigeration tube 400 against the ice tray 300 .

[0082] The refrigeration tube 400 is generally disposed at the bottom of the ice tray 300 , and the pressing plate 500 is located below the refrigeration tube 400 .

[0083] The control mechanism 600 is disposed inside the housing 200 and is configured to drive the pressing plate 500 to move toward the refrigeration tube 400 and press the refrigeration tube 400 against the ice tray 300 , so that the refrigeration tube 400 maintains contact with the ice tray 300 .

[0084] In other words, the control mechanism 600 is used to drive the pressing plate 500 to move upward and to press the refrigeration tube 400 against the ice tray 300 , so that the refrigeration tube 400 maintains contact with the ice tray 300 .

[0085] Specifically, the control mechanism 600 drives the pressure plate 500 to switch between a first state and a second state; when the pressure plate 500 is in the first state, the pressure plate 500 is not installed and the refrigeration tube 400 is not pressed against the ice tray 300; when the pressure plate 500 is in the second state, the pressure plate 500 presses the refrigeration tube 400 against the ice tray 300.

[0086] The pressing plate 500 presses the refrigeration tube 400 against the ice tray 300 to keep the refrigeration tube 400 in contact with the ice tray 300, ensuring that the refrigeration tube 400 directly cools the ice tray 300, thereby ensuring the ice making efficiency of the ice tray 300.

[0087] Therefore, it can be seen that in order to ensure that the pressure plate 500 is installed in place, it is necessary to install the pressure plate 500 after the refrigeration tube 400 is installed in the ice maker assembly. However, the space where the pressure plate 500 is located is relatively small. In the prior art, the pressure plate 500 is usually installed in place by bolts after the ice tray 300 and the refrigeration tube 400 are installed. This installation space is small, the operation is difficult, and the installation efficiency is low. When disassembling the ice maker assembly, the pressure plate 500 must be removed first, and then the refrigeration tube 400 and the ice tray 300 are separated. This also has the problem of small installation space, great difficulty in operation, and low installation efficiency. In this embodiment, because the housing 200 and the ice tray 300 and other parts are integrated into an integrated structure, the installation space for the pressure plate 500 is even smaller, making it more difficult to install.

[0088] This embodiment provides a control mechanism 600 to control the two states of the pressure plate 500. The pressure plate 500 and the ice tray 300 can be installed together. The control mechanism 600 can install the pressure plate 500 in place, eliminating the need for workers to manually install the pressure plate 500 with bolts, thereby reducing the difficulty of workers and improving installation efficiency. Moreover, for the modularly installed ice maker assembly, this structure enables the pressure plate 500 to be integrated into the ice maker assembly during modular assembly. The pressure plate 500 can be installed and removed along with the entire ice maker assembly, facilitating not only the installation and removal of the pressure plate 500 but also the installation and removal of the ice maker assembly, reducing the difficulty of installation and removal and simplifying the operation of workers.

[0089] In some embodiments, the control mechanism 600 includes a cam 610, a rotating shaft 640, and a connecting block 620. The connecting block 620 is disposed on the ice tray 300 and is provided with a movable groove 621. The movable groove 621 has a third lateral opening 622. The cam 610 is connected to the rotating shaft 640, and the rotating shaft 640 is movably disposed in the movable groove 621. The cam 610 has a first posture and a second posture, and the cam 610 rotates to switch between the first posture and the second posture.

[0090] When the cam 610 is in the first posture, the rotating shaft 640 can drive the cam 610 from the third opening 622 into the movable groove 621, and the pressure plate 500 is in the first state; when the cam 610 is in the second posture, the cam 610 presses against the pressure plate 500, forcing the pressure plate 500 to switch to the second state.

[0091] Please refer to Figure 10 and Figure 13 The connecting block 620 is fixedly connected to the bottom of the ice tray 300 , and the cam 610 rotates on the connecting block 620 via the rotating shaft 640 , while the connecting block 620 itself is stationary.

[0092] In this embodiment, the connecting block 620 is provided separately from the ice tray 300. In other embodiments, the connecting block 620 can be formed integrally with the ice tray 300.

[0093] Please refer to Figure 5 and Figure 14 , is a schematic diagram of the cam 610 in the first posture. Figure 9 and 15 , is a schematic diagram of the cam 610 in the second posture.

[0094] Before installing the ice maker assembly, the pressure plate 500 is installed below the ice tray 300 via the connecting block 620. When the cam 610 is in the first position, the pressure plate 500 is not pressed against the bottom of the ice tray 300 and is resting on the cam 610. By rotating the cam 610, it gradually switches from the first position to the second position, lifting the pressure plate 500, reducing the gap between the pressure plate 500 and the ice tray 300. This allows the cam 610 to drive the pressure plate 500 to press the refrigeration tube 400 against the ice tray 300, thereby completing the installation of the ice maker 300.

[0095] Similarly, when removing the ice maker assembly, since the cam 610 is in the second posture, it is necessary to rotate the cam 610 first so that the cam 610 gradually switches from the second posture to the first posture, the pressure plate 500 is gradually lowered, and the gap between the pressure plate 500 and the ice tray 300 becomes larger, and the refrigeration tube 400 is no longer pressed against the ice tray 300.

[0096] In this embodiment, please refer to Figure 11 The cam 610 includes a cam body 611 and a large circular portion 612, a small circular portion 613 and a handle 630 arranged on the cam body 611, and the large circular portion 612 and the small circular portion 613 are respectively arranged on both sides of the cam body 611; when the cam 610 switches from the first posture to the second posture, the cam 610 rotates to the small circular portion 613 to lift the pressure plate 500, and the cam 610 continues to rotate until the small circular portion 613 is close to the edge of the handle 630 and presses against the pressure plate 500, and the pressure plate 500 prevents the handle 630 from continuing to move, and the cam 610 is in the second posture.

[0097] The cam 610 relies on the small circular portion 613 to lift the pressure plate 500, but the small circular portion 613 is not always in contact with the pressure plate 500. When the cam 610 is in the first posture, the small circular portion 613 is facing sideways. At this time, the pressure plate 500 is not lifted up, but rests on the cam body 611. As the cam 610 rotates, the cam 610 gradually changes from the first posture to the second posture. During this process, the small circular portion 613 gradually changes from not contacting the pressure plate 500 to contacting and lifting the pressure plate 500 with one side edge of the small circular portion 613, until the cam 610 is in the second posture, and the pressure plate 500 also contacts the other side edge of the small circular portion 613.

[0098] When the cam 610 is in the second posture, the small circular portion 613 still presses against the pressing plate 500 , ensuring that the pressing plate 500 presses the refrigeration tube 400 against the ice tray 300 .

[0099] With this structure, when the cam 610 is in the second posture, the position of the pressing plate 500 can be stabilized, ensuring that the refrigeration tube 400 is against the ice tray 300. Moreover, the transition between the first posture and the second posture can also be smooth.

[0100] The small circular portion 613 and the large circular portion 612 can both be set to be arc-shaped, the arc lengths and central angles of the large circular portion 612 and the small circular portion 613 can be set to be different, and both sides of the small circular portion 613 can be set to be planes.

[0101] The angle between the line connecting the centers of the large circle 612 and the small circle 613 and the extension direction of the handle 630 is recorded as ∠a1, and the rotation angle of the cam 610 when switching from the first posture to the second posture is recorded as ∠a2, satisfying: ∠a1>∠a2.

[0102] Since the handle 630 is required to rotate to a position close to the pressure plate 500 when the cam 610 is rotated, setting ∠a1>∠a2 allows the handle 630 to pass over the highest point of the cam 610 during rotation, that is, the edge of the small circular portion 613 is against the pressure plate 500.

[0103] When the cam 610 is in the second position, the highest point of the cam 610 and the handle 630 are located on either side of the contact point between the cam 610 and the pressure plate 500. In this situation, the cam 610 tends to continue rotating in the direction from the first position to the second position, and the handle 630 also tends to move in this direction. However, the pressure plate 500 blocks the handle 630, preventing it from rotating further, thus restricting the cam 610's continued rotation and achieving a locked state. The pressure plate 500 can maintain its position holding the refrigeration tube 400 against the ice tray 300. Without external force, the cam 610 cannot transition from the second position to the first position.

[0104] A limiting portion 623 is also provided on the connecting block 620, and the limiting portion 623 is located on the side of the movable groove 621 away from the ice tray 300; when the cam 610 is in the second posture, the limiting portion 623 can cooperate with the large circular portion 612 to prevent the rotating shaft 640 from leaving the movable groove 621 through the third opening 622.

[0105] Since the connecting block 620 has a lateral third opening 622 , allowing the rotating shaft 640 to enter the movable groove 621 from the third opening 622 , it is necessary to prevent the cam 610 from escaping from the movable groove 621 from the third opening 622 when the pressure plate 500 is lifted.

[0106] When the cam 610 is in the first posture, the limiting portion 623 will not engage with the large circular portion 612. Of course, the handle 630, the small circular portion 613, and the cam body 611 will not engage with the limiting portion 623. In other words, the cam 610 can avoid the limiting portion 623, allowing the rotating shaft 640 to enter and exit the movable groove 621 through the third opening 622. When the cam 610 is in the second posture, the large circular portion 612 cooperates with the limiting portion 623. That is, on the path of leaving the movable groove 621, the limiting portion 623 blocks the large circular portion 612, so that the cam 610 can only be confined in the movable groove 621, and the rotating shaft 640 cannot leave the movable groove 621.

[0107] The radius of the large circular portion 612 is recorded as R1 mm, and the radius of the small circular portion 613 is recorded as R2 mm; the limiting portion 623 includes an extension section 6231 and a limiting section 6232, the extension section 6231 extends along the extension direction of the movable groove 621, and the limiting section 6232 is arranged at one end of the extension section 6231 close to the third opening 622, the limiting section 6232 is arc-shaped, and the radius of the limiting section 6232 is recorded as R3 mm.

[0108] The limiting section 6232 is closer to the third opening 622 than the extending section 6231 , and thus is closer to the cam 610 located at the third opening 622 , so that it can cooperate with the large circular portion 612 at this location.

[0109] In the vertical direction of the line connecting the centers of the large circle 612 and the small circle 613, the length of the cam body 611 is recorded as L1 mm; the plane where the axis of the rotating shaft 640 is located is recorded as the reference plane 650, and the reference plane 650 is parallel to the extension direction of the movable groove 621. The distance between the reference plane 650 and the end of the limiting section 6232 is recorded as L2 mm, and the distance between the reference plane 650 and the extension section 6231 is recorded as L4 mm; satisfying: L4>R1, R3>R1, R1>L1, L2>L1 / 2, R1>L2.

[0110] This arrangement can limit the distance that the cam 610 moves toward the third opening 622 , preventing the cam 610 from moving in the movable groove 621 and loosening at the third opening 622 , thereby ensuring that the refrigeration tube 400 is stably pressed against the ice tray 300 by the pressing plate 500 .

[0111] In some embodiments, please refer to Figure 6-8 as well as Figure 12 The bottom of the ice tray 300 is provided with a receiving groove 310 for receiving the refrigeration tube 400 , and the pressing plate 500 is further provided with a supporting plate 510 for pressing the refrigeration tube 400 .

[0112] When the pressing plate 500 is in the second state, the supporting plate 510 presses the refrigeration tube 400 into the accommodating groove 310 .

[0113] The refrigeration tube 400 is U-shaped, and the shape of the accommodating groove 310 set at the bottom of the ice tray 300 also matches the refrigeration tube 400. When the refrigeration tube 400 is installed in place, the refrigeration tube 400 can be pressed into the accommodating groove 310 by the pressing plate 500 and directly contact the ice tray 300.

[0114] The provision of the supporting plate 510 enables the pressing plate 500 to exert a more uniform force on the refrigeration tube 400 , thereby ensuring that the portion of the refrigeration tube 400 corresponding to the accommodating groove 310 can enter the accommodating groove 310 .

[0115] The supporting plates 510 may be provided in plurality and distributed at different positions of the refrigeration pipe 400 .

[0116] In some embodiments, the support plate 510 includes a connecting portion 511 and an abutting portion 512 , wherein the connecting portion 511 is connected to the pressing plate 500 , and the abutting portion 512 is disposed on the connecting portion 511 , and the abutting portion 512 is used to press the refrigeration tube 400 .

[0117] The connecting portion 511 allows the supporting plate 510 to be mounted on the pressing plate 500 so that the supporting plate 510 can move along with the movement of the pressing plate 500. When the pressing plate 500 presses against the refrigeration tube 400, the abutting portion 512 abuts against the refrigeration tube 400. Since the refrigeration tube 400 is a tube, the abutting portion 512 can be configured to match the shape of the refrigeration tube 400.

[0118] The abutting portion 512 is equivalent to extending from one side of the connecting portion 511, so the abutting portion 512 can undergo a certain deformation, which can prevent the abutting portion 512 from applying a large pressure to the refrigeration tube 400 after the refrigeration tube 400 is pressed against the ice tray 300, thereby playing a certain protective role on the refrigeration tube 400.

[0119] In some embodiments, a support plate 520 is further provided on the pressing plate 500 , and one end of the support plate 520 away from the pressing plate 500 is located on a side of the supporting plate 510 facing the pressing plate 500 .

[0120] The support plate 520 can limit the connection part 511. On the one hand, the support plate 520 can position the connection part 511 for the installation of the support plate 510. On the other hand, the support plate 520 can also prevent the support plate 510 from deforming too much.

[0121] Each of the supporting plates 510 may be provided with a pair of the support plates 520 , and the two support plates 520 are provided at both ends of the corresponding supporting plate 510 .

[0122] In some embodiments, a through hole 530 is provided on the pressing plate 500 , and the connecting block 620 passes through the through hole 530 . The handle 630 and the cam 610 are both located on a side of the pressing plate 500 facing away from the refrigeration tube 400 .

[0123] Since the connecting block 620 is connected to both the pressing plate 500 and the ice tray 300, and the pressing plate 500 needs to press against the refrigeration tube 400, the cam 610 is set on the side of the pressing plate 500 away from the ice tray 300, and the handle 630 also needs to be set on the side of the pressing plate 500 away from the ice tray 300. In order to connect the cam 610 and the handle 630, the through hole 530 is set on the pressing plate 500, and the connecting block 620 is allowed to pass through the through hole 530, so that a part of the connecting block 620 is located on the side of the pressing plate 500 away from the ice tray 300, thereby realizing the installation of the cam 610 and the handle 630.

[0124] In some embodiments, a recess 540 is further provided on the plate surface of the pressure plate 500 facing away from the refrigeration tube 400 , and the through hole 530 is provided in the recess 540 . When the cam 610 is in the second posture, the handle 630 completely enters the recess 540 .

[0125] Since other components will be installed on the side of the pressure plate 500 away from the ice tray 300, in order to facilitate the installation of other components and reduce the occupation of the empty space of the ice maker assembly, the recess 540 is provided to hide the handle 630 when the ice maker assembly is installed.

[0126] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A refrigerator, characterized in that: include: A box body having a refrigeration chamber therein; A housing disposed in the refrigeration chamber; An ice tray, disposed inside the housing and used for making ice; a refrigeration pipe, at least a portion of which is disposed inside the housing and is used to cool the ice tray; A pressure plate is arranged inside the shell, and the pressure plate and the ice tray are respectively arranged on both sides of the refrigeration tube; The control mechanism is arranged inside the shell and is used to drive the pressing plate to move toward the refrigeration tube and press the refrigeration tube against the ice tray, so that the refrigeration tube maintains a contact state with the ice tray.

2. The refrigerator according to claim 1, wherein: include: The control mechanism includes a cam, a rotating shaft, and a connecting block, wherein the connecting block is provided on the ice tray, a movable groove is provided on the connecting block, and the movable groove has a third opening opening laterally. The cam is connected to the rotating shaft, and the rotating shaft is movably provided in the movable groove. The cam has a first posture and a second posture, and the cam rotates to switch between the first posture and the second posture; When the cam is in the first posture, the rotating shaft can drive the cam from the third opening into the movable groove, and the pressure plate is in the first state; when the cam is in the second posture, the cam presses against the pressure plate, forcing the pressure plate to switch to the second state.

3. The refrigerator according to claim 2, wherein: The cam includes a cam body, a large circle portion, a small circle portion, and a handle provided on the cam body, wherein the large circle portion and the small circle portion are respectively provided on both sides of the cam body; When the cam switches from the first posture to the second posture, the cam rotates until the small circle lifts up the pressure plate, and the cam continues to rotate until the small circle presses against the pressure plate near the edge of the handle. The pressure plate prevents the handle from continuing to move, and the cam is in the second posture.

4. The refrigerator according to claim 3, wherein: The angle between the line connecting the centers of the large circle and the small circle and the extension direction of the handle is recorded as ∠a1, and the rotation angle of the cam when switching from the first posture to the second posture is recorded as ∠a2, satisfying: ∠a1>∠a2.

5. The refrigerator according to claim 3, wherein: The connecting block is further provided with a limiting portion, and the limiting portion is located on a side of the movable groove away from the ice tray; When the cam is in the second posture, the limiting portion can cooperate with the large circular portion to prevent the rotating shaft from leaving the movable slot through the third opening.

6. The refrigerator according to claim 5, characterized in that: The radius of the large circle is recorded as R1 mm, and the radius of the small circle is recorded as R2 mm; The limiting portion includes an extension section and a limiting section, the extension section extends along the extension direction of the movable groove, the limiting section is provided at one end of the extension section close to the third opening, the limiting section is arc-shaped, and the radius of the limiting section is recorded as R3 mm; The length of the cam body in the direction perpendicular to the line connecting the centers of the large circle and the small circle is L1 mm; The plane where the axis of the rotating shaft lies is recorded as a reference plane. The reference plane is parallel to the extension direction of the movable slot. The distance between the reference plane and the end of the limiting section is recorded as L2 mm, and the distance between the reference plane and the extension section is recorded as L4 mm. Satisfies: L4>R1, R3>R1, R1>L1, L2>L1 / 2, R1>L2.

7. The refrigerator according to claim 1, wherein: A supporting plate is provided on the pressing plate, and the supporting plate includes a connecting portion and an abutting portion. The connecting portion is connected to the pressing plate, and the abutting portion is provided on the connecting portion. The abutting portion is used to press the refrigeration pipe.

8. The refrigerator according to claim 3, wherein: The pressing plate is provided with a through hole, the connecting block passes through the through hole, and the handle and the cam are both located on a side of the pressing plate away from the refrigeration pipe.

9. The refrigerator according to claim 8, characterized in that: A recess is further provided on the plate surface of the pressure plate facing away from the refrigeration tube, and the through hole is provided in the recess. When the cam is in the second posture, the handle completely enters the recess.

10. A refrigerator, characterized in that: include: A box body having a refrigeration chamber therein; A housing disposed in the refrigeration chamber; An ice tray, disposed inside the housing and used for making ice; a refrigeration pipe, at least a portion of which is disposed inside the housing and below the ice tray; A pressure plate is arranged inside the shell and below the refrigeration pipe; The control mechanism is arranged inside the shell and is used to drive the pressing plate to move upward and press the refrigeration tube against the ice tray, so that the refrigeration tube maintains a contact state with the ice tray.

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