Refrigerator

Abstract

A refrigerator of the present invention comprises: a cabinet for providing an accommodation space of articles; a refrigeration chamber which is the accommodation space for storing the articles in a refrigerated state; a refrigeration chamber door for opening / closing the refrigeration chamber; a freezer chamber which is the accommodation space for storing the articles in a frozen state; and a switching chamber which is provided at the refrigeration chamber door and has an internal temperature which can be implemented to be higher than the temperature of the refrigeration chamber or lower than the temperature of the refrigeration chamber.

Description

refrigerator

[0001] The present invention relates to a refrigerator. The present invention relates to a refrigerator having a switching chamber.

[0002] A refrigerator may be provided with a temperature-changing chamber. The temperature-changing chamber refers to a storage space capable of temperature switching. The applicant of the present invention has disclosed a refrigerator having the temperature-changing chamber in registered patent No. KR102279054B1.

[0003] In the above-mentioned technology, a transfer room is provided in the space between the refrigerator and the freezer. The transfer room of the above-mentioned technology has a door that can be opened fully to remove items inside. The items contained in the transfer room of the above-mentioned technology cannot be confirmed until the door is opened. The transfer room of the above-mentioned technology must occupy a separate space between the refrigerator and the freezer.

[0004] The present invention proposes a refrigerator that improves accessibility to all spaces in a switching room.

[0005] The present invention proposes a refrigerator capable of checking the contents inside before opening the door.

[0006] The present invention proposes a refrigerator that utilizes the storage space of a door.

[0007] The refrigerator of the present invention may include a cabinet providing a space for storing items; a refrigerator for storing the items in a refrigerated state as the storage space; a refrigerator door for opening and closing the refrigerator; a freezer for storing the items in a frozen state as the storage space; and a switching room provided in the refrigerator door and capable of implementing an internal temperature higher than or lower than the temperature of the refrigerator.

[0008] The above-mentioned freezer may include an evaporator that evaporates refrigerant to supply cold air to the above-mentioned freezer. The above-mentioned freezer may include a supply path that supplies cold air generated from the evaporator to the above-mentioned switching chamber. The above-mentioned freezer may include a return path that guides the internal air of the above-mentioned switching chamber to the above-mentioned evaporator.

[0009] The above refrigerator door may include a first refrigerator door providing the switching room; and a second refrigerator door having an ice maker.

[0010] The above ice making device can be supplied with cold air generated from the above evaporator.

[0011] In the above freezer, a switching fan for supplying cold air to the switching room; a main fan for supplying cold air to the freezer; and an ice-making fan for supplying cold air to the ice-making device may be provided spaced apart from each other in the left and right directions within the freezer.

[0012] In the above freezer, a switching fan for supplying cold air to the switching room and a main fan for supplying cold air to the freezer can be provided spaced apart in the left and right directions within the freezer.

[0013] It may include a grill that supports the above switching fan and provides a path for cool air blown from the switching fan; and a shroud that guides cool air intake to the switching fan.

[0014] The above switching fan may be a centrifugal fan that discharges cool air sucked in forward in a circumferential direction.

[0015] A switching supply path that guides air discharged from the switching fan to the supply path; and a main supply path that guides air discharged from the switching fan to the interior of the freezer may be included.

[0016] In response to the temperature detected by the sensor that detects the temperature of the above switching room, the switching fan may be controlled to turn on and off, and the main fan and the ice-making fan may not be controlled to turn on and off.

[0017] The above switching fan and the above main fan may have an offset in the front-back direction within the freezer.

[0018] The above-mentioned switching fan may include a grill that supports the switching fan and provides a path for cooling air blown from the switching fan. The above-mentioned switching fan may include a first refrigeration path through which air blown from the main fan is discharged and provided on the upper side of the grill. The above-mentioned switching fan may include a third refrigeration path through which air blown from the main fan is discharged and provided on the lower side of the grill. The above-mentioned switching fan may include a second refrigeration path through which air blown from the main fan is discharged and provided between the first refrigeration path and the third refrigeration path. The above-mentioned switching fan may include a return end through which air returning to the return path is discharged and provided on the lower side of the third refrigeration path.

[0019] The above-mentioned return section may have a predominant component extending in the left-right direction within the freezer. The above-mentioned third refrigerant flow path may have a predominant component extending in the front-back direction within the freezer.

[0020] It may include a first heater for heating at least one of the supply path and the return path.

[0021] The above-mentioned switching chamber may include an inner shell having open front and rear sides. The above-mentioned switching chamber may include an outer shell having open front and rear sides and an insulating material provided between the inner shell and the above-mentioned switching chamber. The above-mentioned switching chamber may include an inner wall through which light provided at the rear side of the switching chamber is transmitted. The above-mentioned switching chamber may include an outer wall through which light provided at the front side of the switching chamber is transmitted and which is openable and closable. The above-mentioned switching chamber may include a first gasket that performs a sealing and insulating function when the outer wall is opened and closed. The above-mentioned switching chamber may include a second gasket that blocks cold air leakage through at least one of a discharge end of the supply path and a suction end of the return path in response to the opening and closing of the refrigerating chamber door.

[0022] A gasket heater may be provided near the second gasket to prevent condensation in the cabinet. A heating heater may be provided between the inner shell and the outer shell to heat the switching chamber.

[0023] In order to guide air blown into the above-mentioned switching room, the side wall of the above-mentioned switching room may include a recessed groove. A guide that is seated in the recess may be included.

[0024] It may include a first evaporator that evaporates refrigerant to supply cold air to the freezer and is closer to the freezer than the refrigerator; a second evaporator that evaporates refrigerant to supply cold air to the refrigerator and is closer to the refrigerator than the freezer; a supply path that passes through the cabinet to supply cold air generated in the first evaporator to the switching room; and a return path that passes through the cabinet to guide air in the switching room back to the first evaporator.

[0025] In order to discharge the refrigerant returning from the above return path, a return stage adjacent to the inlet of the first evaporator may be included.

[0026] The internal temperature of the above-mentioned switching room may be higher than or lower than the temperature of the above-mentioned refrigerator compartment. The internal temperature of the above-mentioned switching room may be higher than the temperature of the above-mentioned freezer compartment.

[0027] In order to increase the internal temperature of the above-mentioned switching room, a heater may be provided in the above-mentioned switching room. A supply path may be included for supplying cold air generated from the above-mentioned evaporator to the above-mentioned switching room without passing through the above-mentioned freezing room.

[0028] The heater may be provided between the inner shell of the switching chamber and the outer shell of the switching chamber. The heater may be closer to the inner shell than to the outer shell.

[0029] The present invention provides easy access to all items contained in a transfer room.

[0030] The present invention allows observation of items contained in a switching room before opening the door.

[0031] The present invention can utilize the storage space of the door, thereby securing the wide internal space of the cabinet as a refrigerator and freezer.

[0032] The present invention can realize a temperature lower than that of a refrigerator in a switching room.

[0033] The present invention can realize a temperature higher than that of a refrigerator in a switching room.

[0034] The description of the embodiments presents other tasks and effects in addition to the representative technical tasks and effects mentioned above.

[0035] Figure 1 is a front view of the refrigerator.

[0036] Figure 2 is a drawing explaining the relationship between the switching room and the freezer.

[0037] Figure 3 is a drawing showing the cold air circulation configuration in the switching room.

[0038] Figure 4 is an exploded perspective view of the switching room.

[0039] Figure 5 is a drawing explaining temperature control in a switching room.

[0040] Figures 6 to 9 are detailed drawings showing the configuration adjacent to the switching fan. Figure 6 is a rear perspective view showing the suction portion of the shroud. Figure 7 is a cross-sectional view taken left and right (yz plane) based on the switching fan. Figure 8 is a side cross-sectional view in the area where the return end of the supply path is connected to the freezer. Figure 9 is a cross-sectional view taken left and right based on the supply path and the return path. Figure 10 is a cross-sectional view taken front-back (xy plane) based on the second fan support part.

[0041] Figures 11 to 13 are drawings illustrating the discharge end of the supply path and the inlet end of the return path of the transfer room, wherein Figure 11 is a front perspective view of the transfer room. Figure 12 is a cross-sectional view taken in the front-back direction (xy plane) with the transfer room as the standard. Figure 13 is a cross-sectional view taken in the up-down direction (xz plane) with the transfer room as the standard.

[0042] Fig. 14 is a rear perspective view of a refrigerator according to another embodiment.

[0043] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the following embodiments, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments within the scope of the same spirit by adding, modifying, deleting, or adding components, and such other embodiments may also be included within the scope of the present invention.

[0044] In the description of the drawings, identical or similar components are given the same reference numbers regardless of the drawing symbols, and redundant descriptions thereof may be omitted.

[0045] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing the specification, and do not have distinct meanings or roles in themselves.

[0046] In describing the embodiments disclosed in this specification, if it is determined that a detailed description of related well-known techniques and known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description may be omitted.

[0047] The attached drawings are only intended to facilitate understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and it can be understood that all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention are included.

[0048] Terms including ordinal numbers, such as "first," "second," etc., may be used to describe various components, but the components are not limited by these terms. These terms may only be used to distinguish one component from another.

[0049] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0050] A singular expression may include a plural expression unless the context clearly indicates otherwise.

[0051] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0052] In the description of the embodiment, the direction is based on the direction in which the user looks at the front of the refrigerator. For example, left and right in front of the refrigerator can be referred to as the left-right direction (x-axis), up and down in front of the refrigerator can be referred to as the up-down direction (y-axis), and the front-back direction in the direction of view in front of the refrigerator can be referred to as the z-axis.

[0053] Fig. 1 is a front view of a refrigerator according to an embodiment.

[0054] Referring to Fig. 1, a refrigerator may include a cabinet (100) having a space for storing items, and the cabinet (100) may provide a refrigerating compartment (R) and a freezer compartment (F). The refrigerating compartment may be provided above the freezer compartment. The refrigerator may employ a refrigerating system using a refrigerant. The refrigerator may include a compressor, a condenser, an expander, and an evaporator for circulating the refrigerant. The evaporator may include a first evaporator (103) that provides cold air to the freezer compartment. The first evaporator may be closer to the freezer compartment than to the refrigerator compartment. The evaporator may include a second evaporator (104) that provides cold air to the refrigerator compartment. The second evaporator may be closer to the refrigerator compartment than to the freezer compartment.

[0055] The above refrigerator compartment can be opened using two doors. The two doors can rotate around a pivot axis extending vertically. The two doors can be spaced apart from each other in the left and right directions. Fig. 2 shows the doors in an open state. The first refrigerating door (101) of the refrigerating compartment can have a switching room (1). The switching room can rotate together with the rotation of the first refrigerating door. The second refrigerating door (102) of the refrigerating compartment can have an ice maker. The ice maker can rotate together with the rotation of the second refrigerating door. The refrigerator can include a door for opening and closing the freezer compartment.

[0056] The ice maker can receive cold air from the first evaporator (103). The switching chamber (1) can receive cold air from the first evaporator. The switching chamber can also receive the internal cold air of the refrigerating chamber, but in this case, it is not preferable because it cannot achieve a temperature lower than the internal temperature of the refrigerating chamber. In other words, if the cold air of the second evaporator is indirectly utilized, it may be difficult to achieve a low temperature in the switching chamber. The switching chamber can also receive cold air from the second evaporator, but in this case, it is not preferable because it cannot cope with the load of the refrigerating chamber or the air flow path is complicated. In other words, if the cold air of the second evaporator is directly utilized, it is difficult to cope with the load of the refrigerating chamber and it may be difficult to provide an air flow path. Considering the above, the cold air of the first evaporator (103) can be supplied to the switching chamber (1). Low-temperature air generated from the first evaporator can be directly supplied to the switching chamber. The low-temperature air generated in the first evaporator can be supplied to the switching room without being used for the refrigeration load of the freezer room.

[0057] Providing the above-described transfer chamber in the refrigerator door can pose several challenges. For example, the cold air flow between the freezer and the transfer chamber may become blocked by frost. The cold air drawn into the transfer chamber may insufficiently cool the freezer. Condensation may occur due to low temperatures near the cold air flow in the transfer chamber. Since the transfer chamber is elongated in all directions, the flow of cold air within the transfer chamber is difficult. The grille and shroud configuration is complex for installing multiple blower fans in the freezer. During operation of the main fan (201), cold air may flow back into the transfer chamber. The embodiment can solve the above-described technical challenges.

[0058] The first evaporator may supply cold air (cold air) by utilizing evaporation of a refrigerant. A blower fan for blowing the cold air may be provided. The blower fan may include a main fan (201) for supplying cold air to the freezing chamber. The blower fan may include a switching fan (202) for blowing cold air to a switching chamber. The blower fan may include an ice-making fan (203) for supplying cold air to the ice-making device. The main fan may be referred to as a first blower fan or a second fan, the switching fan may be referred to as a second blower fan or a second fan, and the ice-making fan may be referred to as a third blower fan or a third fan. The main fan, the switching fan, and the ice-making fan may be spaced apart from each other in the left-right direction. The main fan may be placed in the middle of the switching fan and the ice-making fan. The blower fan may include a centrifugal fan. The centrifugal fan may be installed in a narrow space. The centrifugal fan can discharge air sucked in from the center in the direction of the rotation axis of the centrifugal fan in the circumferential direction. The centrifugal fan can discharge air in all directions of 360. The discharged air of the centrifugal fan can be guided by a flow guide.

[0059] Figure 2 is a drawing explaining the relationship between the switching room and the freezer.

[0060] Referring to Fig. 2, the interior of the freezer may include a grill (10) that supports components and provides a flow path. The grill is referred to as a grill fan. A shroud (see 50 in Fig. 6) may be provided at the rear of the grill. A flow path guide (51) that guides air from a blower fan may be provided in the grill and the shroud. The flow of air may be guided by the flow path guide. Cold air may be sucked in from the rear of the shroud to the front. Here, the cold air may be cold air immediately after passing through the first evaporator (201). The first evaporator may be installed to extend forward, backward, leftward, and rightward at the rear of the shroud. The cold air passing through the shroud may be subjected to centrifugal force by the blower fan. The cold air discharged from the blower fan may be discharged in a circumferential direction. Here, the circumferential direction may include a vertical component and a left-right component.

[0061] The grill (10) may have fan support members (11), (12), and (13) corresponding to each blower fan, which support the rotational axis of the blower fan. The first fan is supported by the first fan support member (11) and can discharge cold air in a circumferential direction. The second fan is supported by the second fan support member (12) and can discharge cold air in a circumferential direction. The third fan is supported by the third fan support member (13) and can discharge cold air in a circumferential direction.

[0062] The cold air can be discharged in a plurality of directions centered on the first fan support member (11). For example, there can be four directions. The arrows illustrate the discharge directions of the cold air. The cold air discharged from the main fan can be supplied to the first refrigerating passage (15) at the upper side of the freezer, the third refrigerating passage (17) at the lower side of the freezer, and the second refrigerating passage (16) at approximately the center height of the freezer. The main fan can supply the cold air forward from a plurality of spaced locations. The cold air supplied to the freezer can be introduced into the first evaporator and circulated. An intake port (19) through which air that has cooled the freezer is sucked can be provided at the lower part of the first evaporator. The cold air can sequentially pass through the intake port (19), the first evaporator, and the shroud. Accordingly, a circulation cycle through the first fan can be achieved.

[0063] The cold air can be discharged in multiple directions with the second fan support member (11) as the center. For example, there can be two directions. The first direction of the two directions can be a freezer. The first direction can be connected to the main supply path (22). The second direction of the two directions can be a switching room (1). The second direction can be a switching supply path (21). The cold air can pass through the switching supply path (21). The switching supply path can be located at the rear of the cabinet. The switching supply path can be placed on the inner surface of the freezer. The cold air can be supplied to the switching room through a supply path (20). The supply path can be inserted into a side wall of the cabinet. The supply path can be insulated by the side wall of the cabinet. The switching room can be cooled by the cold air. Since the cold air passing through the first evaporator is directly supplied, the transfer chamber can maintain a required low temperature. The air cooled in the transfer chamber can return to the freezer through a return path (40). The return path can be inserted into the side wall of the cabinet. The return path can be insulated by the side wall of the cabinet. The cold air can sequentially pass through the intake port (19), the first evaporator, and the shroud. Accordingly, a circulation cycle can be achieved through the second fan.

[0064] A return stage (41) may be provided on the discharge side of the return path. The return stage (41) may be located below the third refrigerating passage (17). The return stage (41) may be adjacent to the inlet of the evaporator. The air discharged from the return stage (41) may be directly introduced into the first evaporator. Accordingly, it may not have a negative effect on low-temperature food in the freezer. The discharge port of the return stage (41) may discharge air in the left-right direction. The third refrigerating passage may discharge cold air in the front-back direction. Depending on at least one of the above factors, when the main fan operates, the discharged air may not flow into the return path (40). Accordingly, it is possible to prevent backflow of cold air through the return path.

[0065] Cold air can be discharged centering on the third fan support member (13). Cold air discharged from the ice-making fan can be supplied to an ice-making device (not shown). The supply of cold air to the ice-making device and the return of cold air can be applied using a known method. For example, the supply path and the return path of the switching room can be mirrored. Here, mirroring can refer to a structure in which the configuration of the left wall is provided like a mirror on the right wall. Cold air supplied to the ice-making device can be introduced into the first evaporator and circulated. An intake port (19) through which air that has cooled the freezer is sucked can be provided at the lower portion of the first evaporator. Cold air can sequentially pass through the intake port (19), the first evaporator, and the shroud.

[0066] The configuration of the blower fan, fan support, and euro guide described above allows for efficient placement of multiple blower fans. This allows for smooth supply of cold air through multiple paths.

[0067] Figure 3 is a drawing showing the cold air circulation configuration in the switching room. Figure 4 is an exploded perspective view of the switching room.

[0068] Referring to FIGS. 3 and 4, cold air blown from the switching fan (202) can pass through the supply path (20). A damper (25) may be provided at either the switching supply path (21) or the supply path (20). The damper (25) can perform an opening and closing function for the cold air passage. The damper (25) can precisely control the cold air supplied to the switching chamber. For example, when the damper is closed, cold air may not be supplied to the switching chamber even if the switching fan operates. For example, when the damper is closed, cold air may not be supplied to the switching chamber even if indirect air flow occurs due to the operation of the main fan and / or the ice-making fan. Accordingly, the cold air flow to the switching chamber can be more precisely controlled. The damper can prevent cold air from flowing back into the switching chamber. Specifically, the transfer room can circulate cold air through the supply and return paths. That is, the transfer room can be opened and sealed only through the supply and return paths. In this case, by closing the supply path, the inflow of low-temperature cold air from the freezer through the return path can be blocked. Accordingly, frost clogging of the return path can be prevented. The same may be true when the main fan and / or ice-making fan and / or transfer fan are in operation.

[0069] The above supply path (20) and the return path (40) may be collectively referred to as a side duct. A first heater may be provided adjacent to the outer wall of the supply path (20) and / or the return path (40). The first heater may be referred to as a side duct heater. The first heater may remove frost from the inside of the supply path and / or the return path. The side duct heater (49) may prevent clogging of the supply path and / or the return path. In order to prevent cooling loss, the first heater may heat to the minimum necessary level.

[0070] The first refrigerator door (101) may include a first door (110) adjacent to the cabinet, and a second door (120) adjacent to the outside of the first door (110). A user may open only the second door. A user may open the first door (110). The main body of the switching room (1) may be provided on the first door. The front of the switching room may be provided on the second door. The switching room may be opened by opening only the second door.

[0071] The above-described switching chamber (1) may have an inner shell (2) that is open at the front and back. An outer shell (3) that is open at the front and back may be provided outside the inner shell. A gap between the outer shell and the inner shell may provide an insulating material. A second heater may be provided in the gap between the outer shell and the inner shell. The second heater may be installed adjacent to the inner shell. The second heater may be installed away from the outer shell. The second heater may be referred to as a heating heater. The second heater may increase the temperature of the switching chamber. The second heater may be used when the temperature of the switching chamber is higher than the temperature of the refrigerating chamber.

[0072] The front and rear of the above-described switching room may be provided with a structure that allows light to pass through. The switching room allows for observation of items through the front and rear. An inner wall (210) may be provided on the rear of the above-described switching room (1). The inner wall may be provided with at least two spaced-apart transparent bodies. An insulating material may be provided between the spaced-apart transparent bodies. The insulating material may contain vacuum or air. An outer wall (see 220 of FIG. 12) may be provided on the front of the above-described switching room (1). The outer wall may be provided with at least three spaced-apart transparent bodies. An insulating material may be provided between the spaced-apart transparent bodies. The insulating material may contain vacuum or air. The number of transparent bodies provided on the outer wall may be greater than that of the inner wall. This allows for a greater insulating effect. The outer wall (220) may be provided on the second door (120). A first gasket (6) may be provided to provide insulation corresponding to the opening and closing of the second door. For example, the first gasket may be provided at the boundary between the outer wall and the inner shell. The first gasket may be provided from soft rubber. The boundary may be sealed when the outer wall is closed due to the elastic deformation of the first gasket. The outer wall may be the second door itself. The outer wall may be opened and closed independently of the second door. The user may observe the inside of the switching room through the front and rear of the switching room.

[0073] A guide (8) may be provided on the side wall of the above-described switching chamber. The guide may guide cold air discharged from the discharge end of the supply passage (20) and / or cold air sucked from the suction end of the return passage (40). The guide (8) may move together with the first door. A second gasket may be provided between the guide and the supply passage and / or between the guide and the return passage. By the second gasket, leakage of cold air corresponding to the opening and sealing of the first door may be blocked. A third heater (79) may be provided between the guide and the supply passage and / or between the guide and the return passage. The third heater may be referred to as a gasket heater. The third heater may prevent condensation on the cabinet due to the low temperature around the second gasket. The third heater may be adjacent to the outer shell (3). The third heater may be located away from the inner shell.

[0074] A sensor (5) that comes into contact with the air inside the switching chamber may be provided. The sensor may be installed inside the switching chamber. The sensor (5) may be provided to precisely control the temperature of the switching chamber (1). The damper (25) may not be provided. Specifically, when the temperature of the sensor (5) is lower than a certain temperature, the switching fan may be stopped. When the temperature of the sensor (5) is higher than a certain temperature, the switching fan may be operated. The temperature of the switching chamber may be controlled by the operation of the switching fan alone. In this case, due to the absence of the damper, a small amount of cold air flow unrelated to the operation of the switching fan may occur. For example, a small amount of cold air may flow through the return path. However, since the return path is sufficiently narrow to have flow resistance, blockage can be prevented. The same may apply when the main fan and / or the ice-making fan are operated.

[0075] Figure 5 is a drawing explaining temperature control in a switching room.

[0076] Refer to Fig. 5. The compressor can be operated to operate the refrigerator and freezer compartments. The fans corresponding to each compartment can be operated to operate the refrigerator and freezer compartments. The temperature of the switching compartment (1) can be controlled by the operation of the switching fan (202). The damper can also be operated to precisely control the temperature of the switching compartment. There is no need to control the compressor to control the temperature of the switching compartment. This is because the switching compartment of the embodiment can receive cold air from the first evaporator of the freezer compartment. This is because the switching compartment of the embodiment can receive cold air from the freezer compartment. This is because the switching compartment of the embodiment can provide warmth through a heater.

[0077] The target temperature (notch 3) of the refrigerator compartment may be higher or lower than the target temperature (notch 1) of the switching compartment. The target temperature (notch 2) of the refrigerator compartment may be lower than the target temperature (notch 1) of the switching compartment. The target temperature (notch 1) of the switching compartment may be set to vary widely compared to the target temperature (notch 2) of the refrigerator compartment and the target temperature (notch 2) of the freezer compartment. For example, it may be set to correspond to a wine storage temperature. In this case, a temperature higher than the temperature of the refrigerator compartment may be set. For example, it may be suitable for storing beverages and meat. In this case, it may be a temperature lower than the temperature of the refrigerator compartment. In this way, the set temperature of the switching compartment may be switched in at least two cases. The temperature of the switching compartment may be higher than the temperature of the freezer compartment. The temperature of the above-mentioned switching room may be a temperature at which ice does not freeze.

[0078] The target temperature setting range (Notch 1 ± Diff) of the above-mentioned switching room may be narrower than the target temperature setting range (notch 3 ± Diff) of the above-mentioned refrigerator compartment and / or the target temperature setting range (notch 2 ± Diff) of the above-mentioned freezer compartment. By precisely controlling the target temperature setting range (notch 1 ± Diff) of the above-mentioned switching room, consumer satisfaction can be further enhanced. In order to more precisely control the target temperature of the above-mentioned switching room, the switching fan (202) may be turned on and off more frequently than the main fan. In order to cope with such frequent on and off, it may be desirable to provide the switching fan and the main fan independently of each other. The switching fan and the main fan may be operated independently of each other. Specifically, the switching fan may be turned on and off to control the temperature of the above-mentioned switching room. The main fan may not be turned on and off to control the temperature of the above-mentioned switching room. For example, only the switching fan can be turned on and off in response to the detected temperature of the sensor (5). In order to respond to such frequent on and off, it may be desirable to provide the switching fan and the ice-making fan independently of each other. The switching fan and the ice-making fan can be operated independently of each other. Specifically, the switching fan can be turned on and off in order to control the temperature of the switching room. The ice-making fan may not be turned on and off in order to control the temperature of the switching room. For example, only the switching fan can be turned on and off in response to the detected temperature of the sensor (5).

[0079] Figures 6 to 9 are detailed drawings showing the configuration adjacent to the switching fan. Figure 6 is a rear perspective view showing the suction portion of the shroud. Figure 7 is a cross-sectional view taken left and right (yz plane) based on the switching fan. Figure 8 is a side cross-sectional view of the area where the return end of the supply path is connected to the freezer. Figure 9 is a cross-sectional view taken left and right based on the supply path and the return path. Figure 10 is a cross-sectional view taken front-back (xy plane) based on the second fan support part.

[0080] Referring to Fig. 6, cold air can be sucked in through holes provided on the rear surface of the shroud. The shroud can be provided with three spaced holes. Each hole can correspond to a respective blower fan. The first evaporator (103) can be located at the rear of the shroud. The first evaporator can be located on the rear surface of the folded lower portion of the shroud. The return end can be adjacent to the side of the first evaporator.

[0081] Referring to FIGS. 7 and 9, the first fan (201) and the second fan (202) may have an offset (w1) of a predetermined length in the forward-backward direction (z-direction). The first fan (201) and the second fan (202) may have different positions in the forward-backward direction. For example, the first fan (201) may protrude further forward than the second fan (202) by an offset (w1) of a predetermined length.

[0082] Accordingly, a passage for air blown by the second fan (202) can be provided. Accordingly, a gap can be provided in which at least a portion of the air blown by the second fan joins the main supply passage (22). The air blown by the second fan can be guided to the main supply passage through the offset portion. A portion of the air blown by the second fan (switching fan) can be supplied to the freezing chamber through the main supply passage (22). For example, the main supply passage (22) can protrude rearward relative to the switching supply passage (21). In this case, a portion of the main supply passage (22) can be arranged to overlap with the switching supply passage (21) in the left-right direction. The vertical height of the switching supply passage (21) communicating with the second fan can be set to be greater than the vertical height of the main supply passage (22). In this way, due to the offset (w1) in the front-back direction of the first fan (201) and the second fan (202), the cold air blown from the second fan can be induced to blow more through the switching supply path (21) than through the main supply path (22).

[0083] Furthermore, according to the present invention, the provision of a switching room can supplement the cold air in the freezer that may be insufficient. As illustrated in FIG. 5, the supply of cold air to the switching room can be frequently interrupted. Consequently, the cold air supplied to the freezer may be insufficient. In this case, the switching fan can supplement the cold air shortage in the freezer. In other words, the separate installation of the switching fan can simultaneously achieve the two goals of appropriately controlling the low temperature of the switching room and supplying sufficient cold air to the freezer.

[0084] Meanwhile, referring further to FIG. 8, the return path (40) may extend diagonally downward and rearward along the side of the freezer (F) to be connected to the freezer (F). The cold air recovered from the switching room is introduced into the freezer (F) and then returned to the first evaporator room (103e) in which the first evaporator (103) is disposed at the rear of the grill (10), thereby being cooled again by the first evaporator (103). However, since the cold air recovered by the return path (40) has relatively high temperature and humidity characteristics compared to the cold air supplied to the switching room, it is preferable that the cold air introduced into the freezer (F) be recovered to the first evaporator room (103e) through the shortest possible return path. In the case of the freezer (F), a grill (10) may be arranged on the rear inner side, and an intake port (19) communicating with the first evaporator chamber (103e) may be formed between the rear of the grill (10) and the rear of the freezer chamber (F). Accordingly, an intake port (19) communicating with the first evaporator chamber (103e) may be formed at the lower end of the first evaporator chamber (103e). For example, the intake port (19) may be formed to be inclined downward and forward. A third refrigerating passage (17) for discharging cold air to the freezer chamber (F) may be formed in the grill (10). The third refrigerating passage (17) may be arranged above the intake port (19). In this case, the third refrigerant passage (17) is formed as close to the suction port (19) as possible, so that the cold air discharged from the third refrigerant passage (17) can be recovered to the suction port (19) through a minimum of cold air circulation.

[0085] A receiving portion (60) may be arranged in front of the grill (10). The receiving portion (60) may be arranged at a predetermined distance from the grill (10) so as not to interfere with the suction port (19) or the third refrigerant passage (17) arranged at the rear. Accordingly, a separation space (61) having a predetermined space may be formed between the rear of the receiving portion (60) and the front of the grill (10). The return path (40) may be introduced into the separation space (61) formed in this manner. In this way, according to the present invention, the cold air recovered from the return path (40) is recovered into the separation space (61) formed between the receiving portion (60) of the freezing chamber (F) and the grill (10), so that the cold air recovered to the freezing chamber (F) can be recovered to the first evaporator chamber (103e) along the minimum recovery path without the recovery cold air flow being obstructed by the receiving portion (60). Accordingly, a structure can be provided that allows relatively high temperature and high humidity return cold air to be returned directly to the first evaporator (103) installed in the first evaporator chamber (103e) without circulating through the freezer chamber (F), thereby increasing the energy efficiency of the refrigerator without causing a change in temperature within the freezer chamber.

[0086] In addition, according to the present invention, the return end (41) formed at the end of the return path (40) communicating with the freezer (F) may be positioned so as not to overlap with the receiving section (60) based on the left-right direction of the freezer (F). However, this is not limited thereto, and in the case of some areas of the return end (41), it may overlap with the receiving section (60) based on the left-right direction of the freezer (F), but if the area where they do not overlap is larger, the inflow of cold air from the return path (40) may not be obstructed by the receiving section (60).

[0087] In addition, according to the present invention, at least a portion of the return end (41) communicating with the freezer (F) can be positioned to overlap at least a portion of the grill (10) with respect to the left-right direction of the freezer (F). As described above, it is preferable that the recovered cold air introduced into the freezer (F) be recovered to the first evaporator chamber (103e) through a minimum recovery path, and therefore, the return end (41) is preferably positioned so as to be adjacent to the grill (10) located in front of the first evaporator chamber (103e) as much as possible. To this end, at least a portion of the return end (41) is positioned to overlap with the suction port (19) with respect to the left-right direction of the freezer chamber (F), thereby allowing the cold air to be recovered to the first evaporator chamber (103e) through a minimum recovery path.

[0088] In Fig. 10, cold air can be blown in two directions, the switching supply path (21) and the main supply path (22), centered on the second fan support. Cold air drawn upward from the second fan support can be guided to the main supply path (22). In order to provide a main supply path adjacent to the second fan support, the offset may be required. According to the above configuration, a grill / shroud / flow guide configuration in which multiple fans are provided can be efficiently provided.

[0089] Referring to Fig. 9, the width (t3) of the switching supply path (21) in the forward-backward direction (z) is larger than the width (t1) of the supply path (20) in the left-right direction and the width (t2) of the return path (40) in the left-right direction. Here, the switching supply path can be extended in the left-right direction. The supply path and the return path can be extended in the back-and-forth direction. The size of the channel through which cold air flows can be narrower in the supply path and the return path than in the switching supply path. Accordingly, the flow resistance can be increased. Accordingly, unwanted cold air movement due to the pressure difference between the switching chamber and the freezer chamber can be prevented. In addition, the width (t1) of the supply path (20) in the left-right direction and the width (t2) of the return path (40) in the left-right direction are considerably small. Accordingly, they can be accommodated in the side wall of a narrow cabinet. Accordingly, sufficient insulation can be achieved for the supply path and the return path.

[0090] Figures 11 to 13 are drawings illustrating the discharge end of the supply path and the inlet end of the return path of the transfer room. Figure 11 is a front perspective view of the transfer room. Figure 12 is a cross-sectional view taken in the front-back direction (xy plane) with the transfer room as the standard. Figure 13 is a cross-sectional view taken in the vertical direction (xz plane) with the transfer room as the standard.

[0091] Referring to Fig. 11, the switching room may include a provided recess (2) with a recessed side wall. The recess (8) may be provided with the blower guide (8). The guide and the recess may guide the inflow of cold air into the switching room. The guide and the recess may guide the discharge of cold air from the switching room.

[0092] Referring to Fig. 12, the guide may include a blower guide (8a). The blower guide may change the direction of cold air from the left-right direction (x) to the up-down direction (y). In other words, the direction of flow of cold air introduced through the side wall extending in the left-right direction (x) of the switching room may be changed to the up-down direction (y). More precisely, the cold air may be discharged upward (+y). Referring to Fig. 12, the direction of flow of cold air passing through the side wall in the left-right direction may be confirmed.

[0093] The above-mentioned groove may include a ventilation groove (2a). The ventilation groove (2a) may be provided by recessing the side wall of the above-mentioned switching room in the left-right direction. The upper end of the ventilation groove (2a) may be provided to be rounded in the up-and-down direction. The rounded upper end of the above-mentioned groove may guide cold air blown at a predetermined speed. The guided cold air may be supplied to the entire area in the left-right direction (x) of the switching room. More precisely, the cold air may be guided in the left-hand direction (-x).

[0094] The above-described air blower guide and the above-described air blower groove can supply cold air to the entire area of ​​the switching room. Since the above-described switching room is provided in the door, the internal area of ​​the above-described switching room can be provided as narrowest in the front-back direction (z). The internal area of ​​the above-described switching room can be provided as larger in the left-right and up-down directions than in the front-back direction. In accordance with the internal configuration of the above-described switching room, cold air can be supplied to the entire internal area of ​​the switching room.

[0095] The above guide may include a return guide (8b). The return guide guides the intake of cold air from the floor of the switching room. In other words, the return guide may have a structure that opens toward the floor. Accordingly, it can be used to control the temperature of the switching room and selectively intake cold air that has moved downward.

[0096] The above-mentioned groove may include a return groove (2b). The return groove (2b) may be provided by recessing the side wall of the above-mentioned switching chamber in the left-right direction. The return groove (2b) may guide cold air in the right-hand direction (+y). The cold air used for temperature control of the switching chamber may be returned to the inside of the freezer chamber by the return groove and the return guide.

[0097] The present invention may include other embodiments.

[0098] Fig. 14 is a rear perspective view of a refrigerator according to another embodiment. Referring to Fig. 13, a main fan and a switching fan are provided, but the ice-making fan may not be provided. Other components may be the same as in the original embodiment. In this case, cold air used for freezing may be used to supply cold air to the switching chamber provided in the refrigerator door.

[0099] In another embodiment, the refrigerator compartment may be opened with a single door. In this case, the switching compartment may also be provided on the door.

[0100] According to the present invention, a switching chamber is provided on the refrigerator door, allowing users to more conveniently utilize the switching function. Furthermore, since it receives cold air from the freezer, the control temperature of the switching chamber can be lower than that of the refrigerator. Furthermore, since the switching chamber can be independently controlled, the operating conditions of the switching chamber can be perfectly implemented.

Claims

1. A cabinet that provides storage space for items; As the above storage space, a refrigerator for refrigerating and storing the above items; A refrigerator door for opening and closing the above refrigerator; As the above storage space, a freezer for storing the above items in a frozen state; A switching room provided in the refrigerator door and capable of implementing an internal temperature higher than or lower than the temperature of the refrigerator; An evaporator that evaporates refrigerant to supply cold air to the above freezer; A supply line for supplying cold air generated in the above evaporator to the above switching room; and A refrigerator comprising a return path for guiding internal air of the above-described switching chamber to the above-described evaporator.

2. In paragraph 1, The above refrigerator door, a first refrigerated door providing the above switching room; and A refrigerator comprising a second refrigerating door having an ice maker.

3. In paragraph 2, The above ice maker is a refrigerator that receives cold air generated from the above evaporator.

4. In paragraph 3, In the above freezer, A switching fan supplying cold air to the above switching room; A main fan supplying cold air to the above freezer; and A refrigerator in which ice-making fans that supply cold air to the ice-making device are provided spaced apart in the left and right directions within the freezer.

5. In paragraph 1, In the above freezer, A switching fan for supplying cold air to the above switching room; and A refrigerator in which the main fan supplying cold air to the freezer is provided spaced apart in the left and right directions within the freezer.

6. In paragraph 5, A grill supporting the above switching fan and providing a path for cool air blown from the above switching fan; and Includes a shroud that guides the intake of cold air through the above-mentioned switching fan, The above-mentioned switching fan is a centrifugal fan that discharges cold air sucked in from the front in a circular direction in a refrigerator.

7. In paragraph 5, A switching supply path that guides the air discharged from the above switching fan to the above supply path; and A refrigerator including a main supply path that guides air discharged from the above-mentioned switching fan into the interior of the above-mentioned freezer.

8. In paragraph 5, In response to the detection temperature of the sensor that detects the temperature of the above switching room, A refrigerator in which the above switching fan is controlled on and off, and the main fan and the ice-making fan are not controlled on and off.

9. In paragraph 5, A refrigerator in which the above switching fan and the above main fan are offset in the front-back direction within the freezer.

10. In paragraph 5, A grill supporting the above switching fan and providing a path for cool air blown from the above switching fan; A first refrigerant passage through which air blown from the main fan is discharged and provided on the upper side of the grill; A third refrigerant passage through which air blown from the main fan is discharged and provided to the lower side of the grill; A second refrigeration path through which air blown from the main fan is discharged and provided between the first refrigeration path and the third refrigeration path; and A refrigerator including a return end provided on the lower side of the third refrigerating passage, wherein air returning to the return passage is discharged.

11. In Article 10, The above regression unit has a predominant component that extends left and right within the freezer. A refrigerator in which the discharge port of the third refrigerant passage is predominantly composed of a component extending in the forward and backward direction within the freezer.

12. In paragraph 1, A refrigerator comprising a first heater for heating at least one of the supply path and the return path.

13. In paragraph 1, The above switching room is, Inner shell with openings at the front and back; An outer shell having open front and back sides and having insulation provided between said inner shell and said outer shell; A light-transmitting inner wall provided at the rear of the above switching room; An outer wall that is openable and allows light to pass through the front of the above-mentioned switching room; A first gasket that performs a sealing and insulating function during the opening and closing operation of the outer wall; and A refrigerator including a second gasket that blocks leakage of cold air through at least one of a discharge end of the supply path and a suction end of the return path in response to the opening and closing of the refrigerator door.

14. In paragraph 13, A gasket heater provided in the vicinity of the second gasket to prevent condensation in the cabinet; and A refrigerator comprising a heating heater provided between the inner shell and the outer shell to heat the switching chamber.

15. In paragraph 13, A groove in the side wall of the switching room to guide the air blown into the switching room; and A refrigerator comprising a guide adapted to be seated in the above groove.

16. Cabinet providing storage space for items; A refrigerator for storing items in a refrigerated manner as the above storage space; A refrigerator door for opening and closing the above refrigerator; A freezer for storing items frozen as the above storage space; A freezer door for opening and closing the above freezer; A switching room provided in the above refrigerator door; A first evaporator that evaporates refrigerant to supply cold air to the freezer, and is located closer to the freezer than the refrigerator; A second evaporator that evaporates refrigerant to supply cold air to the refrigerator, and is located closer to the refrigerator than the freezer; A supply path passing through the cabinet to supply cold air generated from the first evaporator to the switching room; and A refrigerator comprising a return path passing through the cabinet to guide air from the switching chamber back to the first evaporator.

17. In paragraph 16, A refrigerator including a return stage adjacent to the inlet of the first evaporator so that the refrigerant returning from the return stage is discharged.

18. In paragraph 16, The internal temperature of the above switching room is higher than or lower than the temperature of the above refrigerator room, A refrigerator in which the internal temperature of the above-mentioned switching room is higher than the temperature of the above-mentioned freezer room.

19. Cabinet providing storage space for items; As the above storage space, a refrigerator for refrigerating and storing the above items; A refrigerator door for opening and closing the above refrigerator; As the above storage space, a freezer for storing the above items in a frozen state; A switching room provided in the refrigerator door and capable of switching the set temperature so that the internal temperature is higher than or lower than the temperature of the refrigerator room; A heater provided in the switching room to increase the internal temperature of the switching room; An evaporator that evaporates refrigerant to supply cold air to the above freezer; A supply path that supplies cold air generated in the above evaporator to the above switching room without passing through the above freezer room; A refrigerator comprising a return path for guiding air from the above-described switching chamber to the above-described freezer chamber.

20. In paragraph 19, The above heater is provided between the inner shell of the above switching room and the outer shell of the above switching room, A refrigerator wherein the heater is adjacent to the inner shell rather than the outer shell.

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