Refrigerator

Abstract

The utility model relates to the technical field of ice making, and provides a refrigerator which comprises a refrigerator body, a refrigerator door, a refrigerator door and a refrigerator door. The first end of the ice-making air duct is located in the refrigeration chamber, the second end of the ice-making air duct communicates with the evaporator chamber, and a downward first splicing surface is formed at the first end; the ice making assembly is installed in the refrigeration chamber and comprises ice making grids, each ice making grid comprises an upper mold and a lower mold, an upper mold cavity is formed in the upper mold, a lower mold cavity and a refrigeration cavity located below the lower mold cavity are formed in the lower mold, the lower mold is provided with an air inlet pipe section, the air inlet pipe section communicates with the refrigeration cavity, and the air inlet pipe section is provided with a second splicing face; the lower mold is provided with an ice unloading position and an ice making position, the lower mold is separated from the upper mold at the ice unloading position, the lower mold cavity and the upper mold cavity are spliced to form an ice making cavity at the ice making position, and the first splicing surface and the second splicing surface are spliced and matched to communicate the ice making air duct and the air inlet pipe section.

Description

TECHNICAL FIELD

[0001] The utility model relates to ice making technical field especially icebox. BACKGROUND

[0002] With the development of science and technology, people's attention to drinks is also higher and higher, among them, many domestic refrigerators have been carried ice making component to prepare ice block required by drinks. UTILITY MODEL CONTENTS

[0003] The utility model aims at least to solve one of the technical problems in the related art, for this purpose, the utility model provides a refrigerator, which adopts the cold air of the evaporator chamber of the refrigerator to cool the ice making tray, has simple structure, can guarantee the effect of the ice making air duct conveying cold air to the ice making tray and prevent cold air leakage.

[0004] The refrigerator according to the utility model embodiment comprises:

[0005] A box body, which is internally formed with a refrigeration chamber and an evaporator chamber;

[0006] An ice making air duct, a first end of which is located in the refrigeration chamber, and a second end of which is communicated with the evaporator chamber, wherein the first end is formed with a downward first splicing surface;

[0007] An ice making component, which is installed in the refrigeration chamber, wherein the ice making component comprises an ice making tray, the ice making tray comprises an upper mold and a lower mold, the upper mold is formed with an upper mold cavity, the lower mold is formed with a lower mold cavity and a refrigeration cavity located below the lower mold cavity, the lower mold is provided with an air inlet pipe section, the air inlet pipe section is communicated with the refrigeration cavity, and the air inlet pipe section has a second splicing surface;

[0008] The lower mold has an ice removing position and an ice making position, in the ice removing position, the lower mold is separated from the upper mold, in the ice making position, the lower mold cavity and the upper mold cavity are spliced to form an ice making cavity, and the first splicing surface and the second splicing surface are spliced and matched to communicate the ice making air duct and the air inlet pipe section.

[0009] According to an embodiment of the present application, the ice-making assembly is disposed within the refrigeration compartment, ensuring sufficient installation space for the ice-making assembly. Furthermore, the ice-making duct connects the refrigeration chamber of the ice-making assembly and the evaporator compartment, allowing the cold air from the evaporator compartment to be directly directed into the refrigeration chamber of the ice-making assembly. This allows the refrigerator's existing evaporator to be utilized to cool the ice-making assembly, avoiding the problems of increased costs and space requirements associated with the installation of an additional refrigeration system. Furthermore, in the present application, a downward-facing first splicing surface is provided in the ice-making duct. As the lower mold switches from the ice-removing position to the ice-making position, the first splicing surface and the second splicing surface can be effectively spliced ​​together to prevent leakage of cold air from the ice-making duct.

[0010] According to an embodiment of the present invention, the refrigeration compartment includes a refrigerator compartment and a freezer compartment, the refrigerator compartment is located above the freezer compartment, the evaporator compartment is located at the back of the freezer compartment, and the ice-making assembly is located in the refrigerator compartment.

[0011] According to one embodiment of the present invention, in the ice-making position, the air inlet pipe section extends in a horizontal direction, and the ice-making air duct includes a first curved section, a vertical section and a second curved section arranged in sequence from top to bottom, and the vertical section is arranged in contact with the back panel of the refrigeration chamber.

[0012] According to an embodiment of the present invention, both the first splicing surface and the second splicing surface are inclined planes, or both the first splicing surface and the second splicing surface are stepped surfaces.

[0013] According to an embodiment of the present invention, the air inlet pipe section and the lower mold are detachably connected, and a flexible sealing portion is provided between the air inlet pipe section and the ice-making air duct.

[0014] According to one embodiment of the present invention, the lower mold is provided with an air inlet and an air outlet connected to the refrigeration chamber, and an air inlet duct and a return air duct are formed in the air inlet pipe section and the ice-making air duct. The air inlet duct is connected to the air inlet and the evaporator chamber, and the return air duct is connected to the air outlet and the refrigeration chamber.

[0015] According to one embodiment of the present invention, the enclosure of the evaporator compartment is provided with an air outlet interface, the air outlet interface is connected to the evaporator compartment, the air inlet duct is provided with an air inlet interface, and the air outlet interface and the air inlet interface are flexibly connected.

[0016] According to one embodiment of the present invention, the refrigerator includes a mounting bracket, a driving mechanism and a water tank assembly. The ice-making assembly, the driving mechanism and the water tank assembly are all fixed to the mounting bracket. The driving mechanism is dynamically coupled to the lower mold, and the water tank assembly is used to inject water into the ice-making chamber.

[0017] According to one embodiment of the present invention, the mounting bracket is provided with a first guide groove and a second guide groove, the second guide groove includes a vertical groove segment and an arc-shaped groove segment connected to each other, the first guide groove and the vertical groove segment are parallel and correspondingly arranged, the lower mold includes a first shaft installed in the first guide groove and a second shaft installed in the second guide groove, the driving mechanism includes a motor and a connecting rod assembly, the free end of the connecting rod assembly is connected to the second shaft, and the input end of the connecting rod assembly is connected to the output shaft of the motor.

[0018] According to one embodiment of the present invention, the driving mechanism further includes a clamping rod, the input end of the clamping rod is connected to the output shaft of the motor, the free end of the clamping rod is suitable for clamping the lower mold, and a clamping spring is provided between the clamping rod and the lower mold.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. 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.

[0021] Figure 1 It is a structural schematic diagram of a refrigerator provided by an embodiment of the utility model.

[0022] Figure 2 It is a cross-sectional schematic diagram of a refrigerator provided by an embodiment of the present utility model.

[0023] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 4 It is a structural schematic diagram of the lower mold provided by an embodiment of the utility model.

[0025] Figure 5 This is one of the schematic diagrams of the assembly relationship between the ice-making assembly, the driving mechanism and the ice-making air duct provided in the embodiment of the present utility model.

[0026] Figure 6 yes Figure 2 A partial enlarged schematic diagram of point B in the middle.

[0027] Figure 7 This is one of the structural diagrams of the ice-making assembly provided in the embodiment of the present utility model.

[0028] Figure 8 This is the second structural diagram of the ice-making assembly provided by the embodiment of the present utility model.

[0029] Figure 9 This is the second schematic diagram of the assembly relationship between the ice-making assembly, the driving mechanism and the ice-making air duct provided in the embodiment of the present utility model.

[0030] Figure 10 A schematic cross-sectional view of a lower mold provided in an embodiment of the present utility model.

[0031] Figure 11 yes Figure 9 A partial enlarged schematic diagram of point C in the middle.

[0032] Reference numerals:

[0033] 100, cabinet; 110, refrigeration compartment; 111, refrigerator compartment; 112, freezer compartment; 120, evaporator compartment; 121, evaporator; 122, air outlet; 200, ice making air duct; 210, first joint surface; 220, first curved section; 230, vertical section; 240, second curved section; 250, air inlet duct; 251, air inlet interface; 252, return air duct; 300, ice making assembly; 310, ice making tray; 311, upper mold; 3111, upper mold cavity; 312, lower mold; 3121, lower mold cavity; 3122, refrigeration cavity; 31221, air inlet; 31222, Air outlet; 3123, heat exchange fin; 3124, air inlet pipe section; 3125, second splicing surface; 3126, first axis; 3127, second axis; 3128, guide column; 3129, thermal insulation shell; 320, ice-making chamber; 400, drive mechanism; 410, motor; 420, connecting rod assembly; 421, first connecting rod; 422, second connecting rod; 430, clamping rod; 500, mounting bracket; 510, first guide groove; 520, second guide groove; 521, vertical groove section; 522, arc-shaped groove section; 600, clamping seat; 610, through-hole; 700, water tank; 800, clamping spring. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail 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 present invention.

[0035] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0037] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0039] See Figure 1 and Figure 2According to the refrigerator of the embodiment of the present application, the refrigerator comprises a cabinet 100, an ice-making air duct 200 and an ice-making assembly 300. The cabinet 100 is internally formed with a refrigeration compartment 110 and an evaporator compartment 120. The first end of the ice-making air duct 200 is located in the refrigeration compartment 110, and the second end is communicated with the evaporator compartment 120. The ice-making air duct 200 is combined with the ice-making assembly 300 in the refrigeration compartment 110. Figure 3 The first end of the ice-making air duct 200 is formed with a downward first joint surface 210. The ice-making assembly 300 is installed in the refrigeration compartment 110. The ice-making assembly 300 comprises an ice-making tray 310. The ice-making tray 310 comprises an upper mold 311 and a lower mold 312. The upper mold 311 is formed with an upper mold cavity 3111. The lower mold 312 is formed with a lower mold cavity 3121 and a refrigeration cavity 3122 located below the lower mold cavity 3121. The lower mold 312 is provided with an air inlet pipe section 3124 communicated with the refrigeration cavity 3122. The air inlet pipe section 3124 has a second joint surface 3125. The lower mold 312 has an ice-removing position and an ice-making position. In the ice-removing position, the lower mold 312 is separated from the upper mold 311. In the ice-making position, the lower mold cavity 3121 and the upper mold cavity 3111 are combined to form an ice-making cavity 320. The first joint surface 210 and the second joint surface 3125 are combined to communicate the ice-making air duct 200 and the air inlet pipe section 3124. The combination of the first joint surface 210 and the second joint surface 3125 can be referred to Figure 3 .

[0040] According to the embodiment of the present application, the ice-making assembly 300 is arranged in the refrigeration compartment 110, so that the ice-making assembly 300 has sufficient installation space. On this basis, the ice-making air duct 200 is communicated with the refrigeration cavity 3122 of the ice-making assembly 300 and the evaporator compartment 120, so that the cold air in the evaporator compartment 120 is directly introduced into the refrigeration cavity 3122 of the ice-making assembly 300. Thus, the existing evaporator 121 of the refrigerator can be used to cool the ice-making assembly 300, thereby avoiding the problems of cost increase and space occupation caused by the additional refrigeration system. Further, in the present application, the ice-making air duct 200 is provided with the downward first joint surface 210. Thus, when the lower mold 312 is switched from the ice-removing position to the ice-making position, the first joint surface 210 and the second joint surface 3125 can be effectively combined to prevent the cold air in the ice-making air duct 200 from leaking out.

[0041] According to the refrigerator of the embodiment of the present application, the refrigeration compartment 110 includes a refrigerator compartment 111 and a freezer compartment 112. The refrigerator compartment 111 is located above the freezer compartment 112, the evaporator compartment 120 is located behind the freezer compartment 112, and the ice-making assembly 300 is located in the refrigerator compartment 111. In this case, the ice-making assembly 300 is located in the refrigerator compartment 111, thereby preventing water outside the ice-making grid 310 from freezing. Furthermore, since the refrigerator compartment 111 is located above the freezer compartment 112, its height makes it convenient for users to retrieve ice, without having to bend over. The evaporator compartment 120 is located behind the freezer compartment 112 and is used to cool at least the freezer compartment 112. Since the temperature of the freezer compartment 112 is generally between -16 degrees Celsius and -24 degrees Celsius, the evaporator 121 in the freezer compartment 112 meets the ice-making requirements. Of course, the ice-making assembly 300 may also be disposed in the freezing chamber 112 , or the evaporator 121 may also be a cooling evaporator 121 of the refrigerating chamber 111 or other functional compartments.

[0042] See Figure 2 and Figure 3 In the ice-making position, the air inlet duct section 3124 extends horizontally. The ice-making air duct 200 includes, from top to bottom, a first curved section 220, a vertical section 230, and a second curved section 240. The vertical section 230 is positioned flush against the back panel of the refrigeration chamber 111. In the ice-making position, the air inlet duct section 3124 is positioned horizontally, facilitating uniform distribution of cold air within the refrigeration chamber 3122 and ensuring effective ice-making within the ice-making chamber 320. The vertical section 230 is positioned flush against the back panel of the refrigeration chamber 111 to avoid interference with the movement of the lower mold 312 and provide clearance for the lower mold 312. The first curved section 220 is designed to connect the vertical section 230 and the air inlet duct section 3124, while the second curved section 240 is designed to connect the vertical section 230 and the evaporator compartment 120. Among them, due to the thickness of the evaporator compartment 120, the back panel in the freezer compartment 112 is located in front of the back panel of the refrigerator compartment 111, and the ice-making air duct 200 is connected to the evaporator compartment 120 through the back panel of the freezer compartment 112. The second section of the ice-making air duct 200 needs to be adaptively bent forward, where the side close to the refrigerator door is the front side, and the opposite side is the rear side.

[0043] According to an embodiment of the present application, since the lower mold 312 needs to switch between an ice-making position and an ice-removing position, in order to ensure a tight seal between the lower mold 312 and the ice-making air duct 200, the first splicing surface 210 at the first end of the ice-making air duct 200 is designed to become increasingly compact as the lower mold 312 closes and the air inlet duct section 3124 engages. For example, the first splicing surface 210 can be a downwardly inclined plane. In this case, the second splicing surface 3125 of the air inlet duct section 3124 that reaches the ice-making position is an upwardly inclined plane. Furthermore, the first splicing surface 210 and the second splicing surface 3125 have the same inclination angle to ensure that the first splicing surface 210 and the second splicing surface 3125 fit as closely as possible, forming a surface seal at the positions of the first splicing surface 210 and the second splicing surface 3125. For another example, the first splicing surface 210 and the second splicing surface 3125 may both adopt a stepped surface structure, thereby forming a stepped seal between the first splicing surface 210 and the second splicing surface 3125 to prevent cold leakage between the first splicing surface 210 and the second splicing surface 3125.

[0044] On this basis, to further ensure the seal between the air inlet duct section 3124 and the ice-making duct 200, a flexible seal (not shown) can be provided at the end surface of at least one of the air inlet duct section 3124 and the ice-making duct 200. When the lower mold 312 switches from the ice-removing position to the ice-making position, the air inlet duct section 3124 and the ice-making duct 200 squeeze the flexible seal. Alternatively, at least one of the corresponding joints between the air inlet duct section 3124 and the ice-making duct 200 can be made of a flexible material, such as silicone. According to an embodiment of the present application, both the ice-making duct 200 and the air inlet duct section 3124 employ a plastic structure with a foam layer inside.

[0045] In one embodiment, the air inlet duct section 3124 is detachably connected to the lower mold 312. As the refrigerator ages and the seal between the air inlet duct section 3124 and the ice-making air duct 200 deteriorates, the air inlet duct section 3124 can simply be replaced. For example, the lower mold 312 may have a mounting boss extending therefrom, and the air inlet duct section 3124 can be sleeved onto the outer periphery of the mounting boss. Alternatively, the air inlet duct section 3124 and the lower mold 312 may be integrally formed or integrally connected.

[0046] According to an embodiment of the present application, to ensure that the refrigeration chamber 3122 cools the ice-making chamber 320 and ensures ice-making efficiency, heat exchange fins 3123 can be provided at the bottom of the refrigeration chamber 3122 to increase the heat exchange efficiency between the lower mold 312 and the cold air. The heat exchange fins 3123 can be fixed to the top wall of the refrigeration chamber 3122.

[0047] According to the embodiments of this application, see Figures 3 to 5The lower mold 312 is provided with an air inlet 31221 and an air outlet 31222 that communicate with the refrigeration chamber 3122. An air inlet duct 250 and a return air duct 252 are formed in both the air inlet pipe section 3124 and the ice-making air duct 200. The air inlet duct 250 connects the air inlet 31221 with the evaporator compartment 120, while the return air duct 252 connects the air outlet 31222 with the refrigeration compartment 110. In this configuration, the air inlet duct 250 and the return air duct 252 of the ice-making air duct 200 are independent of each other, ensuring a circulating airflow between the evaporator compartment 120 and the refrigeration chamber 3122, thereby ensuring a cooling effect on the ice-making assembly 300. The return air duct 252 can communicate with the freezer compartment 112, thereby returning air from the refrigeration chamber 3122 to the freezer compartment 112. The lower mold 312 may include a heat-insulating outer shell 3129 that is spliced ​​together front and back, and the air inlet 31221 and the air outlet 31222 may be formed in the heat-insulating outer shell 3129 .

[0048] Combine Figure 5 and Figure 6 The enclosure of the evaporator compartment 120 is provided with an air outlet port 122, which is connected to the evaporator compartment 120. The air inlet duct 250 is provided with an air inlet port 251, and the air outlet port 122 and the air inlet port 251 are flexibly connected. When the evaporator compartment 120 is arranged at the back of the freezer compartment 112, one of its functions is to provide cold air to the freezer compartment 112. A plurality of air outlet ports 122 are provided on the enclosure of the evaporator compartment 120, that is, the back panel of the freezer compartment 112. Among them, there are two air outlet ports 122 corresponding to the top freezer drawer, and there is only one air outlet port 122 corresponding to the bottom freezer drawer. The ice-making air duct 200 is connected to one of the air outlet ports 122 corresponding to the top freezer compartment 112. To avoid affecting the cooling effect of the freezer drawer, a three-way valve can be installed at the air outlet port 122. When ice making is required, the three-way valve connects to the ice-making air duct 200; when the freezer compartment 112 needs to be cooled, the three-way valve connects to the freezer compartment 112. Alternatively, to ensure uniform cooling of the freezer drawers on both sides of a side-by-side refrigerator, the ice-making air duct 200 can be connected to the air outlet ports 122 corresponding to two different freezer drawers.

[0049] Combine Figure 2 The evaporator compartment 120 includes an evaporator 121 and a fan (shown in the figure). The fan can be positioned above the evaporator 121 and corresponding to the air outlet port 122. This accelerates air circulation between the evaporator compartment 120, the refrigeration chamber 3122, and the freezer compartment. The fan can also be positioned corresponding to the air outlet port 122 connected to the ice-making air duct 200 to ensure airflow velocity within the ice-making air duct 200.

[0050] When at least one of the air outlet interface 122 provided on the enclosure and the air inlet interface 251 of the ice-making air duct 200 is a flexible interface, the connection reliability and sealing of the connection position can be ensured.

[0051] See Figure 7 The refrigerator includes a mounting bracket 500, a drive mechanism 400, and a water tank 700 assembly. The ice-making assembly 300, the drive mechanism 400, and the water tank 700 assembly are all fixed to the mounting bracket 500. The drive mechanism 400 is dynamically coupled to the lower mold 312, and the water tank 700 assembly is used to fill water into the ice-making chamber 320. In this case, the mounting bracket 500 provides load-bearing, allowing pre-installation to be completed outside the refrigerator. Figure 7 In the embodiment, the water tank 700 is arranged on one side of the ice-making assembly 300, and the two are arranged adjacent to each other, which can ensure the compactness of the structure and avoid the water supply pipeline between the water tank 700 assembly and the ice-making assembly 300 being too long.

[0052] Combine Figure 8 The mounting bracket 500 is provided with a first guide groove 510 and a second guide groove 520. The second guide groove 520 includes a vertical groove section 521 and an arc-shaped groove section 522 connected to each other. The first guide groove 510 and the vertical groove section 521 are parallel and correspondingly arranged. Figure 4 、 Figure 5 、 Figure 7 and Figure 9 The lower mold 312 includes a first shaft 3126 installed in the first guide groove 510 and a second shaft 3127 installed in the second guide groove 520. The driving mechanism 400 includes a motor 410 and a connecting rod assembly 420. The free end of the connecting rod assembly 420 is connected to the second shaft 3127, and the input end of the connecting rod assembly 420 is connected to the output shaft of the motor 410.

[0053] According to the embodiment of the present application, during operation, the motor 410 drives the connecting rod assembly 420 to rotate, which in turn drives the lower mold 312 to first descend along the vertical slot section 521 of the first guide groove 510 and the second guide groove 520, away from the upper mold 311. Then, the motor 410 continues to drive the connecting rod assembly 420 to rotate, at which point the first shaft 3126 cannot continue to move, and the second shaft 3127 moves along the arcuate slot section 522, causing the lower mold 312 to flip around the first shaft 3126 as the rotation center.

[0054] During the mold opening process, the lower mold 312 of the ice-making assembly 300 descends relative to the upper mold 311. This prevents deformation and compression between the lower mold 312 and upper mold 311 during the mold opening process, ensuring a tight seal between the upper and lower molds 311 and 312 during the mold closing process. Furthermore, the lower mold 312 is flipped so that the opening faces downward to facilitate ice removal. Heating wires can be installed in either the upper mold 311 or the lower mold 312 to heat the ice tray 310. This prevents ice from adhering to the inner wall of the ice-making chamber 320 when ice removal is required.

[0055] See Figure 9 and Figure 10 The drive mechanism 400 also includes a clamping rod 430. The input end of the clamping rod 430 is connected to the output shaft of the motor 410. The free end of the clamping rod 430 is adapted to contact and compress the lower die 312 as the output shaft rotates. A clamping spring 800 is provided between the clamping rod 430 and the lower die 312. Specifically, a clamping seat 600 is provided below the lower die 312. The clamping rod 430 is pressed against the clamping seat 600. A clamping spring 800 is provided between the clamping seat 600 and the lower die 312, thereby ensuring that the lower die 312 has a certain elastic preload force. Furthermore, because the lower die 312 is elastically sealed with the upper die 311 under the action of the clamping spring 800, structural damage caused by rigid contact between the upper die 311 and the lower die 312 can be prevented. In order to ensure that the pressing rod 430 first squeezes the pressing seat 600, and then the driving mechanism 400 drives the connecting rod assembly 420 to drive the pressing spring 800, it is possible to ensure that there is a certain angle difference A between the assembly of the output shaft of the motor 410 and the connecting rod assembly 420. That is, the output shaft of the motor 410 is fixed relative to the connecting rod assembly 420 only after rotating through the set angle. Figure 11 Of course, in order to ensure that the rotation of the connecting rod assembly 420 is delayed relative to the rotation of the output shaft, there are many structural forms, as long as the output shaft is provided with a limiting component along the circumference.

[0056] Figure 10 In the embodiment, the compression seat 600 is provided with a plurality of insertion holes 610, and the bottom of the lower mold 312 is provided with a plurality of guide posts 3128. The guide posts 3128 and the insertion holes 610 are pluggably engaged, and a compression spring 800 is disposed outside the guide posts 3128. When the compression rod 430 compresses the compression seat 600, if the connecting rod assembly 420 further drives the compression seat 600, the compression seat 600 moves relative to the lower mold 312 under the guidance of the insertion holes 610, thereby compressing the compression spring 800 located between the compression seat 600 and the lower mold 312. Multiple compression springs 800 can be provided along the length of the ice-making assembly 300 to ensure structural stability between the lower mold 312 and the compression seat 600.

[0057] See Figure 9 The connecting rod assembly 420 includes a first connecting rod 421 and a second connecting rod 422. The first connecting rod 421 rotates with the output shaft, and the first connecting rod 421 drives the second connecting rod 422 to rotate. Figure 9 A connecting rod assembly 420 and a pressing rod 430 are provided on both sides of the corresponding ice-making assembly 300 to provide a stable support for the ice-making assembly 300.

[0058] Figure 10 In the embodiment, along the length direction of the ice making assembly 300, there can be multiple ice making chambers 320, so that multiple spherical ice can be prepared in one mold closing and opening process.

[0059] Finally, it should be noted that the above embodiments are intended only to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A refrigerator, characterized in that: include: The box body has a refrigeration compartment and an evaporator compartment formed therein; An ice-making air duct, wherein a first end is located in the refrigeration compartment and a second end is connected to the evaporator compartment, and the first end is formed with a first joint surface facing downward; An ice-making assembly is installed in the refrigeration room, the ice-making assembly includes an ice-making tray, the ice-making tray includes an upper mold and a lower mold, the upper mold forms an upper mold cavity, the lower mold forms a lower mold cavity and a refrigeration cavity located below the lower mold cavity, the lower mold is provided with an air inlet pipe section, the air inlet pipe section is connected to the refrigeration cavity, and the air inlet pipe section has a second splicing surface; The lower mold has an ice-removing position and an ice-making position. In the ice-removing position, the lower mold is separated from the upper mold. In the ice-making position, the lower mold cavity and the upper mold cavity are spliced ​​together to form an ice-making cavity, and the first splicing surface and the second splicing surface are spliced ​​together to connect the ice-making air duct and the air inlet pipe section.

2. The refrigerator according to claim 1, wherein: The refrigeration compartment includes a refrigerator compartment and a freezer compartment, the refrigerator compartment is located above the freezer compartment, the evaporator compartment is located at the back of the freezer compartment, and the ice-making assembly is located in the refrigerator compartment.

3. The refrigerator according to claim 2, characterized in that In the ice-making position, the air inlet pipe section extends in a horizontal direction, and the ice-making air duct includes a first curved section, a vertical section, and a second curved section arranged in sequence from top to bottom, and the vertical section is arranged in contact with the back panel of the refrigeration chamber.

4. The refrigerator according to claim 1, wherein The first splicing surface and the second splicing surface are both inclined planes, or the first splicing surface and the second splicing surface are both stepped surfaces.

5. The refrigerator according to claim 1, wherein The air inlet pipe section and the lower mold are detachably connected, and a flexible sealing portion is provided between the air inlet pipe section and the ice-making air duct.

6. The refrigerator according to any one of claims 1 to 5, characterized in that: The lower mold is provided with an air inlet and an air outlet connected to the refrigeration chamber. An air inlet duct and a return air duct are formed in the air inlet pipe section and the ice-making air duct. The air inlet duct is connected to the air inlet and the evaporator compartment, and the return air duct is connected to the air outlet and the refrigeration compartment.

7. The refrigerator according to claim 6, characterized in that The enclosure of the evaporator compartment is provided with an air outlet interface, the air outlet interface is connected to the evaporator compartment, the air inlet duct is provided with an air inlet interface, and the air outlet interface and the air inlet interface are flexibly connected.

8. The refrigerator according to any one of claims 1 to 5, characterized in that: The refrigerator includes a mounting bracket, a driving mechanism and a water tank assembly. The ice-making assembly, the driving mechanism and the water tank assembly are all fixed to the mounting bracket. The driving mechanism is dynamically coupled to the lower mold. The water tank assembly is used to inject water into the ice-making chamber.

9. The refrigerator according to claim 8, characterized in that The mounting bracket is provided with a first guide groove and a second guide groove, the second guide groove includes a vertical groove section and an arc-shaped groove section connected to each other, the first guide groove and the vertical groove section are parallel and correspondingly arranged, the lower mold includes a first shaft installed in the first guide groove and a second shaft installed in the second guide groove, the driving mechanism includes a motor and a connecting rod assembly, the free end of the connecting rod assembly is connected to the second shaft, and the input end of the connecting rod assembly is connected to the output shaft of the motor.

10. The refrigerator according to claim 9, characterized in that The driving mechanism further includes a pressing rod, the input end of which is connected to the output shaft of the motor, the free end of which is suitable for pressing the lower die, and a pressing spring is provided between the pressing rod and the lower die.

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