Refrigerator

Abstract

This invention discloses a refrigerator, relating to the field of refrigeration equipment technology. The refrigerator includes: a cabinet, a door, a water tank, a control valve, a water dispensing device, an ice maker, and a pump assembly. An operation window is provided on the side of the door away from the refrigerator compartment. The water tank is located on the door and has a water outlet. The control valve has an inlet end and two outlet ends, the inlet end connecting to the water outlet, and the two outlet ends being an open end and a normally closed end, respectively. The control valve has a switch for opening the normally closed end. The water dispensing device has its water inlet located at the operation window and has a pressure tongue for operating the switch to open the normally closed end. The ice maker is located on the door or in the freezer compartment. The pump assembly is connected to the open end via a water pumping pipe and delivers water from the water tank to the ice maker, achieving a single output end for the water tank and simplifying the water circuit.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and particularly to refrigerators. Background Technology

[0002] In related technologies, refrigerators with ice-making and water-drinking functions have the ice-making module and the water-drinking module connected to the same water tank. However, the ice-making module is connected to the water tank through an ice valve, and the water-drinking module is connected to the water tank through a water valve, resulting in the water tank having multiple output terminals and complex piping. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a refrigerator that can use a single output terminal to simultaneously connect a water intake device and an ice maker, simplifying the piping.

[0004] A refrigerator according to an embodiment of the present invention includes: a cabinet, a door, a water box, a control valve, a water dispensing device, an ice maker, and a pump assembly. The cabinet has a refrigerator compartment and a freezer compartment. The door is rotatably connected to the cabinet, and an operation window is provided on the side of the door away from the refrigerator compartment. The water box is located on the door and has a water outlet. The control valve has an inlet end and two outlet ends. The inlet end is connected to the water outlet, and the two outlet ends are an open end and a normally closed end, respectively. The control valve has a switch for opening the normally closed end. The water dispensing device has a water inlet located at the operation window, and the water dispensing device has a pressure tongue for operating the switch to open the normally closed end. The ice maker is located on the door or the freezer compartment. The pump assembly is connected to the open end through a water pumping pipe and delivers water from the water box to the ice maker.

[0005] The refrigerator according to the present invention has at least the following beneficial effects: the water outlet of the water tank is connected to the inlet end of the control valve, the two outlet ends of the control valve are an open end and a normally closed end, the open end is used by the ice-making device, the normally closed end is used by the water dispensing device, and the normally closed end can be opened by a switch, so that the water tank adopts a single output end and the water circuit is simplified.

[0006] According to some embodiments of the present invention, the control valve includes a valve body, a first seal, and a valve core. The valve body has a valve cavity and a valve seat. The valve seat is located in the valve cavity. The valve core is movably disposed in the valve cavity and passes through the valve seat. The first seal is sleeved on the valve body and abuts against the valve seat. The normally closed end and the inlet end are located on opposite sides of the valve seat, and the open end and the inlet end are located on the same side of the valve seat.

[0007] According to some embodiments of the present invention, the switch is a push switch, which includes a pressing element and an elastic element. The pressing element is movably connected to the valve body. One end of the elastic element abuts against the valve core, and the other end abuts against the valve seat or the valve body. The pressing element moves toward the valve seat and can push the valve core to disengage the first sealing element from the valve seat.

[0008] According to some embodiments of the present invention, the normally closed end and the inlet end are located on opposite sides of the axial direction of the valve seat, the open end is located on one side of the radial direction of the valve seat, the valve core passes through the normally closed end, the valve core is provided with a water outlet channel communicating with the valve cavity, and the pressing member is provided on the outer peripheral wall of the valve core.

[0009] According to some embodiments of the present invention, the valve core includes a core portion, a cylindrical portion and a plurality of flow dividers, the cylindrical portion is sleeved on the outside of the core portion, the water outlet channel is formed between the cylindrical portion and the core portion, and the plurality of flow dividers are distributed circumferentially along the valve core, each flow divider connecting the cylindrical portion and the core portion.

[0010] According to some embodiments of the present invention, the pump assembly includes a water pump and a normally closed solenoid valve, the water pump being connected to the pumping pipeline, and the normally closed solenoid valve being disposed in the pumping pipeline to control the on / off state of the pumping pipeline.

[0011] According to some embodiments of the present invention, the control valve further includes a locking tube and a second sealing element, the locking tube being inserted into the end of the open end, and the second sealing element being disposed between the locking tube and the open end, the locking tube being used to connect the pumping pipeline.

[0012] According to some embodiments of the present invention, a one-way shut-off valve is provided at the outlet, and the control valve is detachably connected to the one-way shut-off valve. The control valve includes a striker that causes the one-way shut-off valve to be in an open state.

[0013] According to some embodiments of the present invention, the control valve includes a third seal, the third seal including an annular portion and a lip, the one-way shut-off valve being inserted into the inner hole of the annular portion, and the lip being disposed on the inner wall of the annular portion.

[0014] According to some embodiments of the present invention, a protective cover is provided inside the box door, the control valve is housed inside the protective cover, the control valve is detachably connected to the protective cover, the protective cover is provided with a first outlet, a second outlet and a third outlet, the one-way shut-off valve passes through the first outlet, the normally closed end passes through the second outlet, and the water pumping pipe passes through the third outlet.

[0015] According to some embodiments of the present invention, the protective cover includes a cover body and a lid body, the lid body being located on the side of the cover body closer to the refrigerator compartment, the control valve being detachably connected to the lid body, and the lid body being detachably connected to the cover body.

[0016] According to some embodiments of the present invention, the protective cover further includes a tube body, the tube body including a first side portion, a second side portion and a tube portion, the first side portion and the second side portion respectively abutting adjacent sides of the cover body, the tube portion being connected to the first side portion and communicating with the cover body, and the water pumping pipe passing through the tube portion.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a refrigerator according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram showing the tank door, water box, and pump body assembly; Figure 3 for Figure 1 A schematic diagram of the tank door and water intake device is shown; Figure 4 for Figure 3 A schematic diagram after part of the door shell has been removed; Figure 5 for Figure 2 An exploded view of the pump body assembly is shown. Figure 6 for Figure 2 A partial sectional view of the cabinet door and related components is shown. Figure 7 Figure 2 A schematic diagram of the water tank is shown; Figure 8 for Figure 7 A cross-sectional view of the water tank shown; Figure 9 for Figure 6 A schematic diagram of the control valve is shown; Figure 10 for Figure 9 A cross-sectional view of the control valve is shown. Figure 11 for Figure 10 A schematic diagram of the valve core is shown; Figure 12 for Figure 4 A schematic diagram showing the connection between the tank door and the water intake device; Figure 13for Figure 4 Exploded view of the box door and water intake device shown; Figure 14 for Figure 13 A schematic diagram of the cover is shown; Figure 15 for Figure 13 The diagram shown is of the enclosure. Figure 16 for Figure 6 A schematic diagram showing the mounting plate and metal sheet; Figure 17 This is a water circuit control logic diagram for a refrigerator according to an embodiment of the present invention.

[0019] Figure label: 101. Door; 102. Cabinet body; 103. First door; 104. Second door; 105. Refrigerator compartment; 106. Freezer compartment; 107. Water box; 108. Control valve; 109. Water inlet; 110. Pump assembly; 111. Water dispensing device; 112. Ice maker; 201. Shaft hole; 301. Operation window; 302. Embedded shell; 401. Protective cover; 402. Pipe body; 403. Pumping pipe; 501. Embedded base plate; 502. Water pump; 503. Protective box; 504. First mounting lug; 505. Normally closed solenoid valve; 601. Water outlet; 602. Pressure tongue; 603. Rotating end; 604. Movable end; 605. Push-button switch; 606. Mounting plate; 607. Protrusion; 608. Detection component; 701. Second loop; 801. One-way shut-off valve; 901. Inlet end; 902. Open end; 903. Normally closed end; 904. Valve body; 905. Third seal; 906. Swirl groove; 907. First groove section; 908. Second groove section; 909. Valve core; 1001. Impact head; 1002. First seal; 1003. Protrusion; 1004. Conductor; 1005. Conductor hole; 1006. Valve cavity; 1007. Valve seat; 1008. Pressing element; 1009. Second elastic element; 1010. Locking tube; 1011. Second seal; 1012. Ring body; 1013. Lip; 1014. Core; 1015. Cylindrical part; 1016. Diverter rib; 1101. Water outlet channel; 1201, Connecting shaft; 1202, Connecting hole; 1203, Card interface; 1204, Guide block; 1205, Limiting part; 1301, First Exit; 1302, Second Exit; 1303, Third Exit; 1304, Cover; 1305, Cover; 1306, First Side; 1307, Second Side; 1308, Pipe; 1401. Install the protrusion; 1402. Snap the protrusion; 1403. Limit the protrusion; 1501. Inner cavity; 1502. Snap-fit ​​hole; 1503. Cylindrical space; 1504. Strip space; 1505. Clearance space; 1601, First elastic element; 1602, Guide hole; 1603, Mounting position; 1604, Snap-fit ​​structure. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] Reference Figure 1The refrigerator of this embodiment includes a cabinet 102 and a door 101. The cabinet 102 is provided with a refrigerator compartment 105 and a freezer compartment 106. The refrigerator compartment 105 and the freezer compartment 106 are spaced apart along the height direction of the cabinet 102. The vertical position of the refrigerator compartment 105 and the freezer compartment 106 can be set according to needs. The door 101 is used to open and close the refrigerator compartment 105 and the freezer compartment 106. The temperature inside the refrigerator compartment 105 is higher than the temperature inside the freezer compartment 106, so that the refrigerator compartment 105 is used to keep the stored items fresh, and the freezer compartment 106 is used to freeze the stored items.

[0025] The refrigerator door 101 is divided into a first door body 103 and a second door body 104. The first door body 103 is located at the opening of the refrigerator compartment 105, and the second door body 104 is located at the opening of the freezer compartment 106. The refrigerator is equipped with a water dispensing device 111 and an ice maker 112. The refrigerator can provide users with low-temperature water through the water dispensing device 111 and provide users with ice cubes through the ice maker 112. Considering the arrangement of the water dispensing device 111 and the ice maker 112, the water dispensing device 111 can be located on the first door body 103, and the ice maker 112 can be located on the first door body 103 or the second door body 104, or it can be located inside the freezer compartment 106.

[0026] It is understood that in some embodiments, the door 101 may also be an integral unit, simultaneously sealing the refrigerator compartment 105 and the freezer compartment 106.

[0027] Reference Figure 3 As shown, it can be understood that an operation window 301 is provided on the outer side of the first door 103, that is, the operation window 301 is located on the side of the first door 103 away from the refrigerator compartment 105, and the water inlet 109 of the water dispensing device 111 is located at the operation window 301. More specifically, the operation window 301 is recessed relative to the outer surface of the first door, the water dispensing device 111 can be located at the upper part of the operation window 301, and the water inlet 109 is located at the upper part of the operation window 301. The user can place a container at the bottom of the operation window 301 to collect low-temperature water.

[0028] Understandably, when the ice-making device 112 is installed on the second door 104, an ice-retrieving window is also provided on the outer side of the second door 104, and the ice-retrieving opening of the ice-making device 112 is located in the ice-retrieving window. More specifically, the ice-retrieving window is recessed relative to the outer surface of the second door 104, and the ice-making device 112 can be located above the ice-retrieving window, with the ice-retrieving opening located at the top of the ice-retrieving window. The user can place a container at the bottom of the ice-retrieving window to collect ice.

[0029] It is understandable that the ice-making device 112 can also be installed on the first door 103, and the ice-retrieving window and the operation window 301 can be combined or set independently.

[0030] Reference Figure 1 and Figure 2 As shown, it can be understood that the refrigerator in this embodiment of the invention also includes a water box 107, which serves as a water source for supplying water to the water dispensing device 111 and the ice maker 112. The water dispensing device 111 and the ice maker 112 share a single water box 107, reducing wasted space inside the refrigerator. Specifically, the water box 107 is located on the first door 103. The water dispensing device 111 is connected to the water box 107 via a water dispensing assembly. At least a portion of the water box 107 is higher than the height of the water inlet 109 of the water dispensing device 111. The water dispensing assembly is equipped with a control valve 108, which controls the connection or disconnection of the water dispensing assembly. When the control valve 108 is opened, water in the water box 107 flows out under gravity to the water inlet 109 of the water dispensing device 111. The cooled water is stored in the water box 107. When the user presses the button on the water dispensing device 111, the cooled water flows out. The entire system employs a purely mechanical mechanism, ensuring structural stability and independence from electrical interference. Even when the refrigerator is powered off, the water intake device 111 can still be used to draw water. Utilizing gravity, the water path is short, reducing the need for the commonly used water pump 502 and lowering the failure rate of the water intake device 111 due to pump lifespan limitations.

[0031] The refrigerator of this embodiment also includes a pump assembly 110, which is connected to a water tank 107 via a water intake pipe 403. When the pump assembly 110 is turned on, it delivers water from the water tank 107 to the ice-making device 112. When the refrigerator's refrigeration system is running, it delivers cold air to the cooling unit of the ice-making device 112. This cooling unit is typically located inside the freezer compartment 106 of the refrigerator and consists of a set of refrigeration pipes and ice molds. After the refrigeration unit cools down, water is guided into the ice molds via an automatic control system. The ice molds are a series of small plastic molds designed to hold a certain amount of water and form ice blocks. The water is cooled and gradually freezes in the ice molds. This process takes a certain amount of time, usually several hours. The temperature of the ice-making device 112 is typically lower than other parts of the refrigerator to ensure that the water freezes quickly. Once the ice blocks are formed, they are stored in a dedicated ice storage area of ​​the refrigerator. This area is typically located inside the refrigerator door 101 or the freezer compartment 106 for easy access by the user. Users can access the ice by opening the door 101 and removing it from the ice storage area. Some refrigerators also feature an automatic or manually activated ice release mechanism in their ice maker 112, making the ice removal process even more convenient.

[0032] It is understood that the cabinet door 101 is rotatably connected to the cabinet body 102 via a hinge. The connecting shaft 1201 of the hinge is provided with a through hole. The water suction pipe 403 passes through the hinge of the cabinet door 101, that is, the water suction pipe 403 passes through the through hole of the connecting shaft 1201 of the hinge, thereby reducing the interference of the rotation of the cabinet door 101 on the stability of the water suction pipe 403. The water suction pipe 403 also passes through the insulation layer of the cabinet body 102, and supplies water to the ice maker 112 at the upper end of the freezer compartment 106. Specifically, refer to Figure 1 As shown, the water supply pipe 403 originates from the water tank 107, extends upwards along a suitable path inside the first door 103 to the hinge above the first door 103, and then enters the cabinet 102, extending downwards to the freezer compartment 106. To protect the water supply pipe 403 from damage and to prevent frost or condensation caused by the exchange of hot and cold air, the water supply pipe 403 is typically wrapped with insulating material; that is, the water supply pipe 403 is embedded in the insulation layer of the cabinet 102. (Refer to...) Figure 2 and Figure 5 As shown, the first door body 103 is provided with a pivot hole 201, the connecting shaft 1201 of the hinge is housed in the pivot hole 201, and the pipe of the water pumping pipe 403 passes through the connecting shaft 1201 at the position corresponding to the pivot hole 201.

[0033] Reference Figure 3 and Figure 4 As shown, the first door 103 has a pre-embedded housing 302, which has a recess to form an operating window 301. The pre-embedded housing 302 has a through hole communicating with the recess, allowing the water intake device 111 to pass through the through hole, so that its water intake port 109 enters the operating window 301. The pre-embedded housing 302 is fixedly installed inside the first door 103, making it less prone to movement relative to the front-back or left-right sides of the first door 103. It is understood that because there is a foam layer inside the first door 103, the pre-embedded housing 302, after being placed inside the first door 103, is less prone to movement due to the presence of the surrounding foam layer.

[0034] Reference Figure 5As shown, the pump assembly 110 includes an embedded base plate 501, a water pump 502, and a protective box 503. The embedded base plate 501 is installed inside the first door 103, meaning it is fixedly installed inside the first door 103 and is not prone to shifting relative to the front-back or side-to-side of the first door 103. It is understood that because there is a foam layer inside the first door 103, the embedded base plate 501 is not prone to shifting due to the presence of the surrounding foam layer. The water pump 502 is fixedly installed on the embedded base plate 501, thus maintaining the relative fixation between the water pump 502 and the first door 103 and preventing it from shaking. The protective box 503 is detachably connected to the first door 103 and covers the water pump 502, placing the water pump 502 between the protective box 503 and the embedded base plate 501. The protective box 503 is equipped with a first hanging ear 504, and the first door 103 is equipped with a first support protrusion. The first hanging ear 504 is hooked onto the first support protrusion to install the protective box 503. It is understood that the first door 103 and the protective box 503 can also be detachably connected by screws, snap-fit ​​connections, or other methods. After grasping the protective box 503, moving it upwards causes the first hanging ear 504 to disengage from the first support protrusion, allowing the protective box 503 to be removed. The first support protrusion supports the protective box 503 and also limits its forward and backward movement, preventing it from falling into the interior of the refrigerator body 102. When the protective box 503 is connected to the embedded base plate 501, it isolates the water pump 502 from other items inside the refrigerator, preventing interference and improving aesthetics. After removing the protective box 503, the water pump 502 can be inspected and replaced, making maintenance more convenient.

[0035] It is understood that in some other embodiments, the protective box 503 may also be detachably connected to the embedded base plate 501. The advantage of the protective box 503 being hung on the first door 103 is that it provides a larger operating space, higher strength of the connection structure, and can be more easily disassembled and installed, thereby improving the reliability of the connection.

[0036] Reference Figures 6 to 8 As shown, the water tank 107 has a water outlet 601, and a one-way shut-off valve 801 is installed at the water outlet 601. The control valve 108 is detachably connected to the one-way shut-off valve 801. When the water tank 107 is removed from the first door 103, the one-way shut-off valve 801 is in the closed state, which can seal the water outlet 601, preventing water in the water tank 107 from flowing out of the water outlet 601, thus helping to maintain the cleanliness of the refrigerator interior and the floor.

[0037] Reference Figure 10As shown, the control valve 108 includes a striker 1001 located on the side of the control valve 108 near the one-way shut-off valve 801. When the one-way shut-off valve 801 is installed in the control valve 108, the striker 1001 pushes the valve core inside the one-way shut-off valve 801 to the open position, thus putting the one-way shut-off valve 801 in a conducting state. When the water box 107 is removed, the one-way shut-off valve 801 disengages from the striker 1001, and the spring valve core 909 inside the shut-off valve helps the valve core 909 return to the closed position, ensuring a seal.

[0038] It is understood that the impact head 1001 includes a protrusion 1003 and a guide portion 1004. The guide portion 1004 is fixedly connected to the valve seat 1007 of the control valve 108 and other positions. The guide portion 1004 is provided with a guide hole 1005 through which water flows. The protrusion 1003 is located on the side of the guide portion 1004 near the one-way shut-off valve 801 and protrudes from the outer surface of the guide portion 1004. The guide hole 1005 is located radially outward of the protrusion 1003. After the water box 107 is installed in the predetermined position of the first door body 103, the protrusion 1003 enters the outlet 601 of the water box 107, pushing the valve core in the one-way shut-off valve 801 to move against the force of the spring, causing the water in the water box 107 to flow out from the outlet 601. The flowing water flows out after passing through the guide hole 1005 of the guide portion 1004.

[0039] Reference Figure 7 As shown, the water box 107 is provided with a second hook 701, and the first door 103 is provided with a second support protrusion. The second hook 701 is hooked onto the second support protrusion to install the water box 107. It is also understood that the first door 103 and the water box 107 can be detachably connected by screws, snap-fit ​​connections, or other methods. After removing the water box 107, moving it upwards causes the second hook 701 to detach from the second support protrusion, thus detaching the water box 107. After the water box 107 is filled with water, it can be directly hooked onto the second support protrusion. The second support protrusion supports the water box 107 and also limits its forward and backward movement, preventing it from falling into the interior of the housing 102.

[0040] Reference Figure 7 As shown, it can be understood that the second hanging ear 701 is inclined toward the first door 103, which makes it convenient for the user to insert the water box 107 at an angle. Compared with inserting the water box 107 vertically, inserting the water box 107 at an angle can reduce the obstruction of the bracket on the first door 103, obtain a wider operating space, and the movement path of the water box 107 is also shorter.

[0041] Reference Figure 6As shown, the water intake device 111 includes a switch assembly capable of opening or closing the control valve 108. The switch assembly includes a pressure tongue 602, which comprises a rotating end 603 and a movable end 604. The rotating end 603 is relatively fixed to the first door body 103, and the movable end 604 rotates around the rotating end 603. The control valve 108 includes a push-button switch 605, and the movable end 604 can actuate the push-button switch 605. Specifically, by pressing the pressure tongue 602, the pressure tongue 602 will move towards the push-button switch 605 until the movable end 604 of the pressure tongue 602 contacts the push-button switch 605 and presses the push-button switch 605 to its maximum position. Then, pressing the pressure tongue 602 stops, at which point the signal of the push-button switch 605 is triggered, the control valve 108 is open, and water begins to flow.

[0042] It should be noted that in some other embodiments, the switch assembly may also include a micro switch assembly, which includes a switch support connected to the embedded housing 302 and a micro switch mounted on the switch support. The micro switch support provides installation space for the micro switch. The micro switch assembly also includes a push plate disposed on the front side of the micro switch and capable of actuating the micro switch. Specifically, by pressing the push plate, the push plate will move towards the micro switch until it contacts the micro switch and presses the micro switch to its maximum position. Then, pressing the push plate stops, at which point the signal of the micro switch is triggered, the control valve 108 is in the open state, and water begins to flow.

[0043] Reference Figure 6 As shown, it can be understood that the switch assembly also includes a mounting plate 606, which is connected to the embedded housing 302, thus fixing the mounting plate 606 to the door 101. The rotating end 603 of the latch 602 is rotatably connected to the mounting plate 606. (Refer to...) Figure 12 As shown, the mounting plate 606 is provided with a connecting shaft 1201, and the rotating end 603 of the pressure tongue 602 is provided with a connecting hole 1202. The connecting shaft 1201 passes through the connecting hole 1202, allowing the pressure tongue 602 to rotate around the connecting shaft 1201 of the mounting plate 606. For ease of installation, the rotating end 603 of the pressure tongue 602 is also provided with a locking interface 1203, which penetrates the side wall of the connecting hole 1202, allowing the connecting shaft 1201 to enter the connecting hole 1202 through the locking interface 1203. This allows the pressure tongue 602 to be installed from the front, without requiring installation by deformation from the side.

[0044] Reference Figure 16As shown, the switch assembly also includes a first elastic element 1601, which is located between the mounting plate 606 and the pressure tongue 602. The first elastic element 1601 maintains a certain opening angle between the mounting plate 606 and the pressure tongue 602, allowing the movable end 604 of the pressure tongue 602 to have a certain range of motion. When the pressure tongue 602 is pressed, the first elastic element 1601 allows the pressure tongue 602 to return to its original position, facilitating the next pressing action. The first elastic element 1601 can be a metal sheet, with one end fixedly connected to the mounting plate 606 and the other end abutting against the pressure tongue 602, maintaining a gap between the mounting plate 606 and the pressure tongue 602. When the user presses the pressure tongue 602, the pressure tongue 602 rotates towards the mounting plate 606, causing the metal sheet to be compressed and deformed. When the user releases the pressure tongue 602, the metal sheet returns to its original shape, causing the pressure tongue 602 to return to its original position. It is understood that the first elastic element 1601 can also be a compression spring or other similar structure.

[0045] Reference Figure 12 As shown, it can be understood that a limit structure is provided between the mounting plate 606 and the pressure tongue 602. Specifically, refer to... Figure 16 As shown, the mounting plate 606 has a guide hole 1602, and the pressure tongue 602 has a guide block 1204. The guide block 1204 passes through the guide hole 1602. When the pressure tongue 602 rotates, the guide block 1204 moves along the guide hole 1602. In addition, a limiting part 1205 is provided at the end of the guide block 1204 away from the pressure tongue 602. The periphery of the limiting part 1205 protrudes from the periphery of the guide hole 1602, so that when the pressure tongue 602 rotates, the limiting part 1205 will not pass through the guide hole 1602. The limiting part 1205 abuts against the mounting plate 606 to prevent the guide block 1204 from disengaging from the guide hole 1602, thereby preventing the first elastic member 1601 from rebounding the pressure tongue 602 at an excessive angle, which would affect its use.

[0046] Reference Figure 9 and Figure 10As shown, the control valve 108 has an inlet end 901 and two outlet ends. The inlet end 901 is connected to the water outlet 601, and the two outlet ends are an open end 902 and a normally closed end 903, respectively. Water flowing out of the water box 107 can flow directly from the open end 902 after passing through the inlet end 901, while the normally closed end 903 will block the water flow and prevent it from flowing directly out. The control valve 108 is equipped with a switch for opening the normally closed end 903. The switch can be the aforementioned push-button switch 605 or an electromagnetic switch, etc. When the normally closed end 903 is opened, the water flowing out of the water box 107 can flow out from the normally closed end 903. The water intake device 111 is connected to the normally closed end 903 through a water intake assembly. The water intake device 111 is equipped with a structure for operating the switch to open the normally closed end 903, specifically the aforementioned pressure tongue 602. Pump assembly 110 is connected to open end 902 via water intake pipe 403. When pump assembly 110 is turned on, it can draw water to ice maker 112. When pump assembly 110 is turned off, water cannot flow through it. Control valve 108 adopts a one-inlet, two-outlet structure, connecting both water intake device 111 and ice maker 112. Water box 107 is connected to only one control valve 108, i.e., it adopts a single-output structure, simplifying the refrigerator's water circuit and improving space utilization. When normally closed end 903 is opened, water can flow from both open end 902 and normally closed end 903 simultaneously, allowing water intake device 111 and ice maker 112 to operate concurrently.

[0047] Reference Figure 9 and Figure 10As shown, the control valve 108 includes a valve body 904, a first seal 1002, and a valve core 909. The valve body 904 is the main body of the control valve 108, used to accommodate and guide the flow of fluid. The valve core 909 is a key component of the fluid passage within the valve body 904. It can move within the valve body 904 to change the flow state of the fluid. The valve body 904 has a valve chamber 1006 and a valve seat 1007, which cooperates with the valve core 909 to form a seal. Valve seat 1007 is located within valve cavity 1006. Valve core 909 is movably disposed within valve cavity 1006 and passes through valve seat 1007. First sealing element 1002 is sleeved on valve body 904 and abuts against valve seat 1007. Normally closed end 903 and inlet end 901 are located on opposite sides of valve seat 1007, while open end 902 and inlet end 901 are located on the same side of valve seat 1007. When valve core 909 is in its normal position, first sealing element 1002 abuts against valve seat 1007, sealing valve seat 1007 and preventing water entering from inlet end 901 from flowing out from normally closed end 903 through valve seat 1007. The drive mechanism can be a manual knob, electric actuator, or other drive method used to control the movement of valve core 108. When the drive mechanism is not activated, valve core 909 is in its default position. When the drive mechanism is activated, it moves the valve core 909 to another position, thereby changing the conduction state and opening the normally closed end 903.

[0048] In this embodiment, when the water dispensing device 111 triggers the control valve 108, the valve core 909 moves axially along the valve seat 1007, the first seal 1002 disengages from the valve seat 1007, and the water flowing in from the inlet end 901 can flow out from the normally closed end 903 through the valve seat 1007. Since the open end 902 and the inlet end 901 are located on the same side of the valve seat 1007, the water flowing in from the inlet end 901 can flow out directly from the open end 902 without passing through the valve seat 1007. The control valve 108 adopts a purely mechanical mechanism, which is structurally stable and unaffected by electricity. Even when the refrigerator is powered off, the water dispensing device 111 can still be used to dispense water. Furthermore, the water dispensing device 111 does not require a commonly used water pump 502, but instead utilizes the gravity of the water itself, reducing the failure rate of the water dispensing device 111 due to pump lifespan issues and lowering costs.

[0049] The following explanation uses a push-button switch 605 as an example. Figure 10As shown, the push-button switch 605 includes a pressing element 1008 and a second elastic element 1009. The pressing element 1008 is movably connected to the valve body 904. The two ends of the second elastic element 1009 abut against the valve seat 1007 and the valve core 909, respectively. The second elastic element 1009 applies force to the valve core 909 to hold it in a specific position. The switching between normally open and normally closed states can be controlled by adjusting the tension of the second elastic element 1009. The pressing element 1008 and the valve core 909 are an integral structure. After pressing the pressing element 1008, the pressing element 1008 moves towards the valve seat 1007, and the valve core 909 moves accordingly, causing the first seal 1002 to disengage from the valve seat 1007. Water from the inlet end 901 reaches the normally closed end 903 through the gap between the valve seat 1007 and the first seal 1002. After the pressing element 1008 is released, the valve core 909 is reset under the force of the second elastic element 1009, and the pressing element 1008 moves with the valve core 909.

[0050] Understandably, the pressing element 1008 and the valve core 909 can also be separate structures. In the direction of movement of the pressing element 1008, the pressing element 1008 and the valve core 909 maintain a certain distance or remain in contact. When the pressing element 1008 is subjected to a force, causing it to move towards the valve seat 1007, the pressing element 1008 pushes the valve core 909 to move, causing the first sealing element 1002 to disengage from the valve seat 1007, connecting the normally closed end 903 with the inlet end 901. When the force causing the pressing element 1008 to move towards the valve seat 1007 disappears, the valve core 909 resets under the force of the second elastic element 1009, and simultaneously pushes the pressing element 1008 back to its original position.

[0051] Understandably, the second elastic element 1009 can also be installed with one end abutting against the valve body 904 and the other end abutting against the valve core 909, as long as the pressing element 1008 and the valve core 909 can move towards the valve seat 1007.

[0052] Reference Figure 10 As shown, it is understandable that Figure 10 The vertical direction in the figure is the axial direction of valve seat 1007. Figure 10 The left-right direction is the radial direction of valve seat 1007. Inlet end 901 is located on the upper side of valve seat 1007, normally closed end 903 is located on the lower side of valve seat 1007, and open end 902 is located above and to the right of valve seat 1007. Valve core 909 passes through normally closed end 903 and has an outlet channel 1101 connecting to valve chamber 1006. Pressing element 1008 is located on the outer peripheral wall of valve core 909; that is, pressing element 1008 is a pressing protrusion on the outer peripheral wall of valve core 909. The movement direction of pressing element 1008 is basically consistent with the outlet direction, which helps to simplify the structure and improve space utilization.

[0053] Reference Figure 10 and Figure 11 As shown, the valve core 909 includes a core portion 1014, a cylindrical portion 1015, and multiple flow dividers 1016. The cylindrical portion 1015 is sleeved on the outside of the core portion 1014, forming a water outlet channel 1101 between the cylindrical portion 1015 and the core portion 1014. The multiple flow dividers 1016 are distributed at intervals along the circumference of the valve core 909, and each flow divider 1016 connects the cylindrical portion 1015 and the core portion 1014. A pressing element 1008 is provided on the outer peripheral wall of the cylindrical portion 1015. The flow dividers 1016 can make the water outlet more uniform, and the end of the cylindrical portion 1015 away from the valve seat 1007 protrudes from the core portion 1014, making the water flow at the outlet end of the valve core 909 more concentrated.

[0054] It should be noted that in some other embodiments, the axial direction of the valve seat 1007 is nearly perpendicular to the line connecting the inlet end 901 to the normally closed end 903. In this case, the normally closed end 903 and the inlet end 901 are located on opposite radial sides of the valve seat 1007, and the open end 902 is located on one side of the valve seat 1007 along its axial direction but is offset from the valve seat 1007. The pressing member 1008 is located on one side of the valve seat 1007 along its axial direction and is located outside the valve cavity 1006. After the user presses the pressing member 1008, the pressing member 1008 pushes the valve core 909 to move into the valve cavity 1006, the first sealing member 1002 disengages from the valve seat 1007, and the water flow from the inlet end 901 can enter the normally closed end 903 through the valve seat 1007. In this embodiment, the movement direction of the pressing member 1008 is basically perpendicular to the water outlet direction.

[0055] Reference Figure 6 and Figure 12 As shown, the movable end 604 has two protrusions 607, and part of the control valve 108 passes between the two protrusions 607. The push switch 605 is on the movement path of the protrusions 607, allowing the protrusions 607 to press the push switch 605. Specifically, the two protrusions 607 are respectively located on both sides of the pressing member 1008. When the pressure tongue 602 rotates toward the mounting plate 606, the two protrusions 607 directly push the pressing member 1008 toward the valve seat 1007, opening the normally closed end 903. The pressing member 1008 is subjected to force simultaneously on both sides, making the force on the pressing member 1008 more even and the movement more stable.

[0056] Reference Figure 10As shown, the control valve 108 also includes a locking tube 1010 and a second seal 1011. The locking tube 1010 is inserted into the end of the open end 902, and the second seal 1011 is located between the locking tube 1010 and the open end 902. The locking tube 1010 is used to connect the pumping pipe 403. The locking tube 1010 is a mechanical device for pipe connection, and its main function is to fix and lock the pipe 1010, ensuring the stability and sealing of the pipe connection. Locking tubes 1010 are commonly used in piping systems that require frequent disassembly and connection. They provide a quick and reliable connection method while reducing the risk of leakage. The locking tube 1010 can be equipped with a locking mechanism, such as a snap ring, clamp, or quick coupling, to facilitate the connection of the pumping pipe 403 to the open end 902. These mechanisms can further lock the pipe connection after it is established, ensuring the stability of the connection. During the locking process, the second seal 1011 is compressed, forming a good sealing effect.

[0057] Reference Figure 9 and Figure 10 As shown, the control valve 108 includes a third seal 905. A one-way shut-off valve 801 is inserted into the inner hole of the third seal 905. The third seal 905 covers the outer wall of the one-way shut-off valve 801. The impact head 1001 pushes open the one-way shut-off valve 801, putting it in a conducting state. Water flowing out of the one-way shut-off valve 801 is sealed by the third seal 905. The third seal 905 includes an annular portion 1012 and a lip 1013. The lip 1013 is disposed on the inner wall of the annular portion 1012 and adheres tightly to the outer wall of the one-way shut-off valve 801, thereby improving the sealing performance and preventing water leakage from the gap between the third seal 905 and the one-way shut-off valve 801. Furthermore, the annular portion 1012 has a large thickness, providing a certain strength. During the installation of the one-way shut-off valve 801, the annular portion 1012 is not easily deformed, thus reducing the installation difficulty.

[0058] Reference Figure 4 and Figure 13 As shown, it can be understood that a protective cover 401 is provided inside the door 101, and the control valve 108 is housed within the protective cover 401. The control valve 108 is detachably connected to the protective cover 401. The protective cover 401 has a first outlet 1301, a second outlet 1302, and a third outlet 1303. A one-way shut-off valve 801 passes through the first outlet 1301, a normally closed end 903 passes through the second outlet 1302, and a water pumping pipe 403 passes through the third outlet 1303. The protective cover 401 can protect the control valve 108 during the formation of the insulation layer. The detachable connection between the control valve 108 and the protective cover 401 facilitates the inspection and maintenance of the control valve 108.

[0059] Reference Figures 13 to 15As shown, it can be understood that the protective cover 401 includes a cover body 1304 and a cover body 1305. The cover body 1304 is fixedly installed inside the first door body 103. The cover body 1305 is located on the side of the cover body 1304 near the refrigerator compartment 105. The control valve 108 is detachably connected to the cover body 1305. The cover body 1305 is detachably connected to the cover body 1304. The control valve 108 can be removed together with the cover body 1305, and then the control valve 108 can be removed from the cover body 1305.

[0060] Specifically, refer to Figure 9 As shown, the valve body 904 of the control valve 108 is provided with a swirl groove 906. The swirl groove 906 includes a first groove segment 907 arranged axially along the valve body 904 and a second groove segment 908 arranged circumferentially along the valve body 904. The first groove segment 907 extends to one end face of the valve body 904, and both ends of the second groove segment 908 are blind ends. (Refer to...) Figure 14 As shown, the cover 1305 is provided with a mounting protrusion 1401. During installation, the mounting protrusion 1401 moves axially along the valve body 904 from the first groove 907 to the second groove 908. Then, the control valve 108 is rotated to move the mounting protrusion 1401 circumferentially along the valve body 904 from one end of the second groove 908 to the other end, thereby realizing the connection between the control valve 108 and the cover 1305.

[0061] Reference Figure 15 As shown, the cover 1304 is provided with an inner cavity 1501 for accommodating the control valve 108, and the inner wall of the inner cavity 1501 is provided with a snap-fit ​​hole 1502. (Refer to...) Figure 14 As shown, the cover 1305 is provided with a snap-fit ​​protrusion 1402, which snaps into the snap-fit ​​hole 1502, enabling a detachable connection between the cover 1305 and the housing 1304. The cover 1305 also includes a cover portion, which abuts against the end face of the housing 1304 and closes the inner cavity 1501. (Refer to...) Figure 15 As shown, the inner cavity 1501 is divided into a cylindrical space 1503 and a strip-shaped space 1504. The cylindrical space 1503 is used to house the inlet end 901 and the normally closed end 903, while the strip-shaped space 1504 is used to house the open end 902. (Refer to...) Figure 14 As shown, the cover 1305 has a limiting protrusion 1403 at the position corresponding to the strip space 1504. The limiting protrusion 1403 abuts against the side wall of the strip space 1504 away from the cylindrical space 1503, enhancing the connection reliability between the cover 1305 and the housing 1304. The housing 1304 also has an avoidance space 1505, which connects to the strip space 1504. The position of the avoidance space 1505 corresponds to the limiting protrusion 1403. It can also be understood that the avoidance space 1505 is formed by a local area of ​​the side wall of the strip space 1504 away from the cylindrical space 1503. The user can reach into the avoidance space 1505 with their hand or a tool to pry up the cover 1305, thus separating the cover 1305 from the housing 1304.

[0062] Reference Figure 4 and Figure 13 As shown, the protective cover 401 also includes a pipe body 402. The cover 1304 has an opening through which the water supply pipe 403 passes. The pipe body 402 includes a first side portion 1306, a second side portion 1307, and a pipe portion 1308. The first side portion 1306 and the second side portion 1307 respectively abut against adjacent sides of the cover 1304. The first side portion 1306 is fitted against the side wall where the pipe opening is located. The pipe portion 1308 is connected to the first side portion 1306 and communicates with the cover 1304, meaning the position of the pipe portion 1308 corresponds to the pipe opening. The water supply pipe 403 passes through the pipe portion 1308 and then enters the cover 1304, connecting to the open end 902. The pipe body 402 and the cover 1304 are separate components. Compared to a one-piece design, the separate design is simpler, easier to manufacture, and reduces manufacturing difficulty. The first side portion 1306 and the second side portion 1307 respectively abut against the adjacent sides of the cover 1304, which can realize the quick positioning and connection of the tube 402 and the cover 1304, and can also play a protective role to prevent the insulation material from entering the cover 1304 during injection molding.

[0063] It is understood that the refrigerator in this embodiment of the invention also includes a control module, which is connected to the pump assembly 110. The control module can control the opening and closing of the pump assembly 110. The control module can be the main control board of the refrigerator, or it can be other control devices independent of the main control board of the refrigerator, without specific limitations. When the control module receives the user's opening or closing command, it controls the opening or closing of the pump assembly 110, thereby controlling the opening or closing of the ice maker 112. For example, the control module can be directly connected to the motor of the water pump 502 through a terminal block or junction box, or it can be wirelessly connected to the water pump 502 through wireless communication technologies (such as Wi-Fi, Bluetooth, ZigBee, etc.).

[0064] Reference Figure 6 As shown, the switch assembly also includes a detection element 608. The detection element 608 can detect the opening action of the pressure tongue 602. That is, when the pressure tongue 602 rotates towards the mounting plate 606 to open the water dispensing device 111, the detection element 608 detects the position change of the pressure tongue 602, generates and transmits a trigger signal to the control module, and the control module controls the pump assembly 110 to remain in the closed state. When both the water dispensing device 111 and the ice maker 112 simultaneously trigger an opening command, the detection element 608 detects the movement of the pressure tongue 602 and generates a trigger signal. Upon receiving the trigger signal, the control module will shut down the pump assembly 110 and stop the water dispensing from the ice maker 112's water supply pipe 403.

[0065] It is understandable that the pressure tongue 602 can also be replaced by other triggers for opening the control valve 108. For example, when the switch assembly includes a button, the trigger can be a button cap, and the detection element 608 is used to detect the downward movement of the button cap and transmit the detection signal to the control module.

[0066] Reference Figure 5 As shown, the pump assembly 110 also includes a normally closed solenoid valve 505, which is located on the water pumping pipe 403. When the water pump 502 is turned on and the normally closed solenoid valve 505 is open, water from the open end 902 can flow along the water pumping pipe 403 and enter the ice maker 112 for ice making. When the normally closed solenoid valve 505 is closed, water from the open end 902 cannot enter the ice maker 112. After the user removes the water box 107, the normally closed solenoid valve 505 can close the water pumping pipe 403. Under atmospheric pressure, any residual water in the pipe connected to the open end 902 will not flow out, preventing contamination of the refrigerator's internal environment and improving the user experience.

[0067] It is understood that in some embodiments, the detection element 608 can be a limit switch, which is fixed to the mounting plate 606 and connected to the control module. The limit switch is triggered when the pressure tongue 602 presses the press switch 605. (See reference...) Figure 16 As shown, it can be understood that the mounting plate 606 is provided with a mounting position 1603 for accommodating the limit switch, and a snap-fit ​​structure 1604 is provided at the mounting position 1603 to facilitate the installation and removal of the limit switch.

[0068] In other embodiments, the detection element 608 can also be an infrared sensor, a pressure sensor, an ultrasonic sensor, or a magnetic switch. For example, a pressure sensor can detect changes in pressure; when a user presses switch 605, the sensor detects an increase in pressure and outputs a corresponding signal. An ultrasonic sensor detects the distance to an object by emitting and receiving ultrasonic waves. When a user presses switch 605, the sensor can detect a change in the object's position. A magnetic switch uses changes in the magnetic field to detect the switch's state. When a magnetic object (such as a magnet) approaches or moves away from the switch, it can trigger the switch's action.

[0069] Reference Figure 17As shown, it is understandable that when the refrigerator is not powered on, the ice maker 112 inside the refrigerator cannot work to make ice, the water pumping pipe 403 of the ice maker 112 cannot work to supply water, and the water dispensing device 111 can work normally because it is a mechanical structure and is not controlled by the circuit. When the user presses the pressure tongue 602 to take water, the control valve 108 opens, the water intake path of the water intake device 111 opens, and a container can be used to take water from the outside of the refrigerator door 101. That is, even after the refrigerator is powered off, the user can still take water without opening the refrigerator door 101. When the refrigerator is powered on and the user does not press the pressure tongue 602, the water pumping pipe 403 of the ice maker 112 can work normally, the water pump 502 pumps water to the ice maker 112 to make ice, and the water intake device 111 does not produce water. When the refrigerator is powered on and the user presses the pressure tongue 602, the water pumping pipe 403 of the ice maker 112 is closed, the water pump 502 stops pumping water, the water intake path of the water intake device 111 opens, and water can be taken from the outside of the refrigerator door 101. When the refrigerator is powered on and the ice maker 112 is in operation, if the user presses the pressure tongue 602 midway, the pump assembly 110 will stop working, the water intake circuit of the water intake device 111 will open, and water will be supplied to the water intake device 111 first.

[0070] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A refrigerator, characterized in that, include: The cabinet has a refrigerator compartment and a freezer compartment; The cabinet door is rotatably connected to the cabinet body, and an operation window is provided on the side of the cabinet door away from the refrigerator compartment; A water box is located at the door of the container, and the water box is provided with a water outlet; A control valve having an inlet end and two outlet ends, the inlet end being connected to the water outlet, and the two outlet ends being an open end and a normally closed end, respectively, and the control valve being provided with a switch for opening the normally closed end; A water intake device, wherein the water intake port of the water intake device is located at the operation window, and the water intake device is provided with a pressure tongue for operating the switch to open the normally closed end; An ice-making device is located at the cabinet door or the freezer compartment; The pump assembly is connected to the open end via a water pumping pipe and delivers water from the water box to the ice-making device. The control valve includes a valve body, a first sealing element, and a valve core. The valve body has a valve cavity and a valve seat. The valve seat is located within the valve cavity. The valve core is movably disposed within the valve cavity and passes through the valve seat. The first sealing element is sleeved on the valve body and abuts against the valve seat. The normally closed end and the inlet end are located on opposite sides of the valve seat, and the open end and the inlet end are located on the same side of the valve seat. The normally closed end and the inlet end are located on opposite sides of the valve seat axially, and the open end is located on one side of the valve seat radially. The valve core passes through the normally closed end and has a water outlet channel communicating with the valve cavity. The pump assembly includes a water pump and a normally closed solenoid valve. The water pump is connected to the water pumping pipeline, and the normally closed solenoid valve is disposed in the water pumping pipeline to control the opening and closing of the water pumping pipeline. A one-way shut-off valve is provided at the water outlet. The control valve is detachably connected to the one-way shut-off valve, and the control valve includes a striker that puts the one-way shut-off valve in a conducting state.

2. The refrigerator according to claim 1, characterized in that, The switch is a push-button switch, which includes a pressing element and an elastic element. The pressing element is movably connected to the valve body. One end of the elastic element abuts against the valve core, and the other end abuts against the valve seat or the valve body. The pressing element moves toward the valve seat, which can push the valve core to disengage the first sealing element from the valve seat.

3. The refrigerator according to claim 2, characterized in that, The pressing element is located on the outer peripheral wall of the valve core.

4. The refrigerator according to claim 3, characterized in that, The valve core includes a core, a cylindrical part, and multiple flow dividers. The cylindrical part is sleeved on the outside of the core, and the water outlet channel is formed between the cylindrical part and the core. The multiple flow dividers are distributed circumferentially along the valve core, and each flow divider connects the cylindrical part and the core.

5. The refrigerator according to claim 1, characterized in that, The control valve further includes a locking tube and a second sealing element. The locking tube is inserted into the end of the open end, and the second sealing element is disposed between the locking tube and the open end. The locking tube is used to connect the water pumping pipeline.

6. The refrigerator according to claim 1, characterized in that, The control valve includes a third seal, which includes an annular portion and a lip. The one-way shut-off valve is inserted into the inner hole of the annular portion, and the lip is disposed on the inner wall of the annular portion.

7. The refrigerator according to claim 1, characterized in that, The box door is equipped with a protective cover, the control valve is housed inside the protective cover, the control valve is detachably connected to the protective cover, the protective cover is provided with a first outlet, a second outlet and a third outlet, the one-way shut-off valve passes through the first outlet, the normally closed end passes through the second outlet, and the water pumping pipeline passes through the third outlet.

8. The refrigerator according to claim 7, characterized in that, The protective cover includes a cover body and a lid body. The lid body is located on the side of the cover body closer to the refrigerator compartment. The control valve is detachably connected to the lid body, and the lid body is detachably connected to the cover body.

9. The refrigerator according to claim 8, characterized in that, The protective cover also includes a pipe body, which includes a first side portion, a second side portion, and a pipe section. The first side portion and the second side portion respectively abut against adjacent sides of the cover body. The pipe section is connected to the first side portion and communicates with the cover body. The water pumping pipe passes through the pipe section.

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