Refrigerator
The use of a single evaporator and two fans with a damper and filter system in the refrigerator design addresses the challenges of cooling multiple spaces efficiently and preventing air backflow and odors, reducing costs and space needs while maintaining optimal storage conditions.
Patent Information
- Application Number
- PCT/KR2024/006766
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-07-17
- Filing Date
- 2024-05-20
- Publication Date
- 2025-01-23
AI Technical Summary
Conventional refrigerators require multiple evaporators to cool independent storage spaces, leading to increased production costs and potential air backflow and condensation issues when only one space is cooled, as well as the generation of bad odors due to air stagnation in room temperature storage.
A refrigerator design utilizing a single evaporator and two fans to independently cool two storage spaces, with a damper system to prevent air backflow and a filter assembly to manage odors, allowing each space to be set to freezer, refrigerator, or room temperature settings.
This design reduces production costs, minimizes storage space requirements, prevents air backflow and condensation, and effectively manages odors in the room temperature storage space by using a single evaporator and two fans with a damper and filter system.
Smart Images
Figure KR2024006766_23012025_PF_FP_ABST
Abstract
Description
refrigerator
[0001] The present invention relates to a refrigerator.
[0002] A refrigerator is a home appliance that allows food to be stored at low temperatures within an internal storage space enclosed by a door. To achieve this, refrigerators utilize the cold air generated through heat exchange with the refrigerant circulating in the refrigeration cycle to cool the interior of the storage space, thereby maintaining optimal storage conditions for stored food.
[0003] A refrigerator can have multiple independent storage spaces, and the user can control the cold air supplied to each storage space according to their choice, allowing them to be switched to any of the freezer, refrigerator, and room temperature storage spaces.
[0004] The present invention aims to provide a refrigerator that can independently cool two storage spaces with one evaporator, thereby reducing production costs and minimizing reduction in storage space.
[0005] The purpose of the present invention is to provide a refrigerator that cools a plurality of independent storage spaces with one evaporator and two fans, and allows each storage space to be switched and used as one of a freezer, a refrigerator, and a room temperature storage space.
[0006] The present invention aims to provide a refrigerator that cools two independent storage spaces with one evaporator and two fans, and which can effectively prevent air from the other storage space from flowing backward when only one storage space is cooled.
[0007] The purpose of the present invention is to provide a refrigerator that can prevent condensation and the generation of an unpleasant odor due to stagnant air inside a room temperature storage room when one of the storage spaces is used as a room temperature storage room.
[0008] According to one embodiment of the present invention for solving the above problem, a refrigerator comprises: a cabinet; a first switching chamber provided on one side of the cabinet and capable of switching between a freezing temperature and a refrigerating temperature; a second switching chamber provided on the other side of the cabinet and capable of switching between a refrigerating temperature and a room temperature; an evaporator provided in the cabinet and configured to generate cold air; and a first grill fan assembly disposed at the rear of the first switching chamber, wherein the first grill fan assembly comprises: a shroud including a first grill fan, a first flow path portion disposed at the rear of the first grill fan and supplying cold air to the first switching chamber, and a second flow path portion formed on an opposite surface of the first flow path portion and supplying cold air to the second switching chamber; a shroud cover disposed at the rear of the shroud; A first fan is provided in the first flow path section and causes cold air of the evaporator to flow to the first flow path section, a second fan is provided in the second flow path section and causes cold air of the evaporator to flow to the second flow path section, and a damper is provided in the second flow path section and causes the cold air flowed by the second fan to selectively flow to the second switching chamber, and the shroud cover covers the second fan and the damper from the rear.
[0009] The first fan may be provided in a first opening formed in the shroud, and the second fan may be provided in a second opening formed in the shroud cover.
[0010] The shroud may include a plurality of pressure compensation holes formed through the first flow path section to spatially connect the first flow path section and the second flow path section.
[0011] The above plurality of pressure compensation holes can be arranged on both sides centered on the rotation axis of the second fan.
[0012] The shroud cover includes a fan cover portion that covers the second fan from the rear, a damper cover portion that covers the damper from the rear, and a connecting portion positioned between the fan cover portion and the damper cover portion, and the plurality of pressure compensation holes include a first pressure compensation hole that overlaps the fan cover portion in a front-to-back direction, and a second pressure compensation hole that overlaps the connecting portion in a front-to-back direction, and the first pressure compensation hole may be larger than the second pressure compensation hole.
[0013] The second grill fan assembly may further include a second grill fan assembly disposed at the rear of the second switching room, wherein the second grill fan assembly includes a second grill fan including a third flow path section for supplying cold air provided from the damper to the second switching room, and a filter assembly provided to the second grill fan and configured to suck air from the second switching room and flow it to the third flow path section, and the filter assembly may include a third fan for sucking the air from the second switching room, a filter member disposed in front of the third fan for deodorizing the air, and a filter cover disposed in front of the filter member and formed to be opened downward.
[0014] The first grill fan may include a cold air outlet located above the second fan.
[0015] The apparatus further includes a control unit that controls the temperature of the first switching room and the second switching room by controlling the operation of the first fan, the second fan, and the damper, and the control unit can control the operation of the first fan, the second fan, and the damper so as to operate in a first mode in which the first switching room is maintained at a freezing temperature and the second switching room is maintained at a refrigerating temperature, a second mode in which the first switching room is maintained at a refrigerating temperature and the second switching room is maintained at a refrigerating temperature, and a third mode in which the first switching room is maintained at a refrigerating temperature and the second switching room is maintained at a room temperature.
[0016] The first mode includes a first cooling mode in which the first switching room is cooled but the second switching room is not cooled, and a second cooling mode in which the second switching room is cooled but the first switching room is not cooled, wherein in the first cooling mode, the damper is closed and the first fan is controlled to rotate faster than the second fan, and in the second cooling mode, the damper is opened and the second fan is controlled to rotate faster than the first fan.
[0017] The above first cooling mode can be performed when the temperature of the first switching room is higher than the reference range of the freezing temperature and the temperature of the second switching room is within the reference range of the refrigeration temperature.
[0018] The second cooling mode can be performed when the temperature of the first switching room is within the reference range of the freezing temperature and the temperature of the second switching room is higher than the reference range of the refrigeration temperature.
[0019] In the first cooling mode and the second cooling mode, the first fan and the second fan can be controlled to rotate simultaneously.
[0020] The second mode includes a first cooling mode in which the first switching room is cooled but the second switching room is not cooled, and a second cooling mode in which the second switching room is cooled but the first switching room is not cooled, wherein in the first cooling mode, the damper is closed and the first fan is controlled to rotate faster than the second fan, and in the second cooling mode, the damper is opened and the second fan is controlled to rotate faster than the first fan.
[0021] In the second cooling mode, the first fan can be stopped.
[0022] The above first cooling mode can be performed when the temperature of the first switching room is higher than the reference range of the refrigeration temperature and the temperature of the second switching room is within the reference range of the refrigeration temperature.
[0023] The second cooling mode can be performed when the temperature of the first switching room is within the reference range of the refrigeration temperature and the temperature of the second switching room is higher than the reference range of the refrigeration temperature.
[0024] In the first cooling mode and the second cooling mode, the first fan and the second fan can be controlled to rotate simultaneously.
[0025] The duration of the first cooling mode may be shorter than the duration of the second cooling mode.
[0026] The third mode includes a cooling mode in which the first switching chamber is cooled but the second switching chamber is not cooled, and in the cooling mode, the damper is closed and the first fan can be controlled to rotate faster than the second fan.
[0027] In the above cooling mode, the first fan and the second fan can be controlled to rotate simultaneously.
[0028] According to one embodiment of the refrigerator, the following effects can be expected.
[0029] A refrigerator according to one embodiment can cool two storage spaces independently with one evaporator, thereby reducing production costs and minimizing storage space reduction.
[0030] According to one embodiment, a refrigerator cools a plurality of independent storage spaces with one evaporator and two fans, and each storage space can be switched to be used as one of a freezer, a refrigerator, and a room temperature storage space, thereby increasing usability.
[0031] According to one embodiment, a refrigerator cools two independent storage spaces with one evaporator and two fans, and when only one storage space is cooled, the refrigerator effectively prevents air from the other storage space from flowing backward, thereby preventing an increase in the internal temperature and condensation, and prevents frost formation and freezing on the passage caused by humid air.
[0032] According to one embodiment, a refrigerator can prevent the generation of an unpleasant odor within a room temperature storage room by means of a filter assembly provided in a storage space that can be used as a room temperature storage room.
[0033] Figure 1 is a front view of a refrigerator according to one embodiment.
[0034] Figure 2 is a front view of a refrigerator with the door open according to one embodiment.
[0035] FIG. 3 is a perspective view of a cold air flow path device of a refrigerator according to one embodiment.
[0036] FIG. 4 is a perspective view of a first grill fan assembly according to one embodiment.
[0037] FIG. 5 is a perspective view of a first grill fan assembly according to one embodiment, viewed from a different angle than FIG. 4.
[0038] FIG. 6 is a partial perspective view of a first grill fan assembly according to one embodiment, viewed from a different angle than FIG. 5.
[0039] Figure 7 is an exploded perspective view of a first grill fan assembly according to one embodiment.
[0040] FIG. 8 is an exploded perspective view of a first grill fan assembly according to one embodiment, viewed from a different angle than FIG. 7.
[0041] Figure 9 is a front view of a shroud according to one embodiment.
[0042] Fig. 10 is a rear view of a shroud according to one embodiment.
[0043] Fig. 11 is a perspective view of a shroud cover according to one embodiment.
[0044] Fig. 12 is a perspective view of a shroud cover according to one embodiment, viewed from a different angle than Fig. 11.
[0045] FIG. 13 is a perspective view of a second grill fan assembly according to one embodiment.
[0046] Figure 14 is an exploded perspective view of a second grill fan assembly according to one embodiment.
[0047] FIG. 15 is a front view of a third grill fan assembly according to one embodiment.
[0048] FIG. 16 is a side schematic diagram of a third grill fan assembly according to one embodiment.
[0049] Figure 17 is an exploded perspective view of a third grill fan assembly according to one embodiment.
[0050] Fig. 18 is a block diagram showing the flow of control signals of a refrigerator according to one embodiment.
[0051] Fig. 19 is a table showing a control method of a refrigerator according to one embodiment.
[0052] Figures 20 to 22 are schematic diagrams showing the flow of cold air according to a method for controlling a refrigerator according to one embodiment.
[0053] Figure 23 is a front view of a grill pan assembly according to another embodiment.
[0054] Figure 24 is an exploded perspective view of a grill fan assembly according to another embodiment.
[0055] Hereinafter, specific embodiments of the present invention will be described in detail, with reference to the drawings. However, the present invention is not limited to the embodiments that present the spirit of the present invention, and other regressive inventions or embodiments within the scope of the present invention can be easily proposed by adding, modifying, or deleting other components.
[0056] That is, for the convenience of explanation and understanding, the embodiment of the present invention is described by way of example with a double-door type refrigerator having a freezer and a refrigerator on the left and right, but it is made clear that the present invention can be applied to all types of refrigerators having one evaporator and two fans.
[0057] Fig. 1 is a front view of a refrigerator according to one embodiment. Fig. 2 is a front view of a refrigerator with the door open according to one embodiment.
[0058] Referring to FIGS. 1 and 2, a refrigerator (1) according to one embodiment may be configured to include a cabinet (10) forming a storage space and a door (20) for opening and closing the storage space of the cabinet (10).
[0059] The cabinet (10) is partitioned left and right by a barrier, and may include a first switching room (11) arranged on the left and a second switching room (12) arranged on the right. The door (20) may include a first door (21) for opening and closing the first switching room (11) and a second door (22) for opening and closing the second switching room (12).
[0060] The first switching room (11) is normally set to a freezer temperature and used as a freezer. When necessary, it can be switched to a refrigerator temperature by user operation and used as a refrigerator. Therefore, the first switching room (11) can also be called a freezer.
[0061] The second switching room (12) is normally set to the refrigerator temperature and used as a refrigerator, and when necessary, it can be switched to room temperature by the user's operation and used as a room temperature storage room.
[0062] For example, a refrigerator (1) according to one embodiment may have, as operating modes, a first mode in which the first switching room (11) is used as a freezer and the second switching room (12) is used as a refrigerator, a second mode in which both the first switching room (11) and the second switching room (12) are used as refrigerators, and a third mode in which the first switching room (11) is used as a refrigerator and the second switching room (12) is used as a room temperature storage room. Specific details regarding the operating modes will be described later.
[0063] The cabinet (10) may be equipped with an evaporator (not shown) that performs heat exchange with air to generate cold air. The evaporator may be equipped at the inner rear of the first switching chamber (11), and the cold air generated by the evaporator may be supplied to the first switching chamber (11) and the second switching chamber (12) to cool the first switching chamber (11) and the second switching chamber (12). The evaporator may be arranged at the rear of the second grill fan assembly (40) described below.
[0064] FIG. 3 is a perspective view of a cold air flow path device of a refrigerator according to one embodiment.
[0065] Referring to FIG. 3, a refrigerator (1) according to one embodiment may include a cold air passage device (2) provided inside a cabinet (10). The cold air passage device (2) may include a first grill fan assembly (30) disposed at the upper rear end of a first switching chamber (11), a second grill fan assembly (40) disposed at the lower rear end of the first switching chamber (11), and a third grill fan assembly (50) disposed at the rear end of the second switching chamber (12).
[0066] The cold air passage device (2) according to one embodiment may further include a connecting duct (60) that guides cold air from the first grill fan assembly (30) to the third grill fan assembly (50). In addition, the cold air passage device (2) according to one embodiment may further include a ventilation duct (70) that guides air inside the second switching chamber (12) to the rear of the second grill fan assembly (40). The connecting duct (60) and the ventilation duct (70) may be arranged to penetrate the barrier.
[0067] Hereinafter, the first grill fan assembly (30), the second grill fan assembly (40), and the third grill fan assembly (50) will be described in detail.
[0068] Fig. 4 is a perspective view of a first grill fan assembly according to one embodiment. Fig. 5 is a perspective view of the first grill fan assembly according to one embodiment viewed from a different angle from Fig. 4. Fig. 6 is a partial perspective view of the first grill fan assembly according to one embodiment viewed from a different angle from Fig. 5. Fig. 7 is an exploded perspective view of the first grill fan assembly according to one embodiment. Fig. 8 is an exploded perspective view of the first grill fan assembly according to one embodiment viewed from a different angle from Fig. 7.
[0069] Referring to FIGS. 4 to 8, a first grill fan assembly (30) according to one embodiment may be formed so as to partition the inside of a first switching room (11). The first grill fan assembly (30) according to one embodiment may include a first grill fan (31), a first insulating member (32) disposed at the rear of the first grill fan (31), a first fan (341) disposed at the rear of the first insulating member (32), a shroud (33) disposed at the rear of the first fan (341), a second fan (342) disposed at the rear of the shroud (33), a damper assembly (35) disposed at one side of the second fan (342) at the rear of the shroud (33), and a shroud cover (36) covering the second fan (342) and the damper assembly (35).
[0070] The first grill fan (31) forms the rear surface of the upper portion of the first switching chamber (11) and can be injection-molded using a plastic material. The first grill fan (31) can be formed in a rectangular plate shape, and a fan frame can be formed by bending the periphery to be combined with a shroud (33).
[0071] The first grill fan (31) may include a plurality of fan outlets formed to discharge cold air into the first switching chamber (11). The plurality of fan outlets may be cold air outlets through which cold air flowing by the first fan (341) is provided to the first switching chamber (11). The plurality of fan outlets may include an upper fan outlet disposed at the upper end of the first grill fan (31). The upper fan outlet may be disposed above the second fan (342). Therefore, cold air may be supplied to the first switching chamber (11) from the upper end, thereby enabling efficient cooling.
[0072] A first insulating member (32) may be provided at the rear of the first grill fan (31). The first insulating member (32) may prevent cold air provided from the evaporator from being radiated and conducted to the first switching chamber (11), and at the same time, may form a first flow path (331) that allows cold air to flow to the first switching chamber (11).
[0073] The first insulating member (32) may be formed of an EPS (Expanded Polystyrene) material that is easy to mold and has excellent insulating performance. The first insulating member (32) may be formed so that it can be accommodated and adhered to the inside of the first grill pan (31) and the shroud (33). The perimeter of the first insulating member (32) may be formed so that it can adhere to the inner surfaces of the first grill pan (31) and the shroud (33).
[0074] A first insulating member (32) may be formed with a first insulating member (32) outlet opening corresponding to a position of a switching room fan. The first insulating member (32) outlet may be formed in a square shape in which a first fan (341) may be mounted. In addition, a first grill fan (31) flow path through which cold air moves may be formed between the first insulating member (32) and the first grill fan (31).
[0075] A shroud (33) may be arranged at the rear of the first insulating member (32). A first fan (341) and a second fan (342) may be mounted vertically on the shroud (33). The shroud (33) may provide a path for cold air provided from the evaporator to enter the first fan (341) and the second fan (342). The shroud (33) may include a first fan opening (333). The first fan (341) is arranged between the first insulating member (32) and the shroud (33) and may be mounted on the first fan opening (333). The second fan (342) is arranged at the rear of the shroud (33) and may be mounted above the first fan (341).
[0076] A first flow path (331) through which cold air supplied to the first switching room (11) flows may be formed on the front side of the shroud (33). For example, the first flow path (331) may be formed between the shroud (33) and the first insulating member (32). Cold air moving along the rear side of the shroud (33) may be guided to the first flow path (331) by the first fan (341) mounted on the first fan opening (333). The cold air guided to the first flow path (331) may move to the flow path of the first grill fan (31) through the discharge port of the first insulating member (32) and be provided to the first switching room (11).
[0077] A second fan (342) and a damper assembly (35) may be mounted on the rear of the shroud (33), and a shroud cover (36) covering the second fan (342) and the damper assembly (35) may be mounted. The second fan (342), the damper assembly (35), and the shroud cover (36) may be positioned on the rear of the first switching room (11).
[0078] The second fan (342) may be positioned above the first fan (341). The second fan (342) may move the cool air provided from the evaporator to the second switching chamber (12). The cool air moved by the second fan (342) may move to the second switching chamber (12) through the damper assembly (35).
[0079] The damper assembly (35) may be arranged on the second switching room (12) side of the second fan (342). That is, the damper assembly (35) may be arranged between the second fan (342) and the second switching room (12). The damper assembly (35) may include a damper unit (351), a first damper unit (351) cover (352) arranged in front of the damper unit (351), and a second damper unit (351) cover (353) arranged in the rear of the damper unit (351).
[0080] The first damper unit (351) cover (352) and the second damper unit (351) cover (353) may be formed of an EPS (Expanded Polystyrene) material that is easy to mold and has excellent insulation performance. The damper unit (351) may be formed so as to be accommodated and tightly fitted to the first damper unit (351) cover (352) and the second damper unit (351) cover (353).
[0081] The opening and closing operation of the damper unit (351) can be controlled by the control unit (80). When the damper unit (351) is opened, the cold air of the second flow path (332) can move toward the connection duct (60) and move to the second switching room (12). The opening and closing operation of the damper unit (351) can be performed in conjunction with the operation of the second fan (342). The opening and closing operation of the damper unit (351) by the control unit (80) will be described later with reference to FIGS. 21 and 22.
[0082] The damper unit (351) can selectively allow the cold air supplied to the second switching room (12) to flow as it is opened and closed. For example, when the damper unit (351) of the damper assembly (35) is closed, the cold air supply to the second switching room (12) is blocked, and when the damper unit (351) is opened, the cold air supply to the second switching room (12) can be made.
[0083] A shroud cover (36) covering a second fan (342) and a damper assembly (35) may be mounted on the rear side of the shroud (33). A second flow path (332) may be formed between the rear side of the shroud (33) and the shroud cover (36). Cooling air flowing by the second fan (342) may move toward the second switching room (12) through the damper unit (351) via the second flow path (332). The shroud cover (36) may include a second fan opening (364) in which the second fan (342) is mounted. The second fan (342) may cause air to flow from the outside to the inside of the shroud cover (36) through the second fan opening (364).
[0084] Cold air moving along the rear of the shroud (33) can be guided to the second flow path (332) through the second fan opening (364) by the second fan (342). The cold air guided to the second flow path (332) can be provided to the second switching room (12) through the damper unit (351).
[0085] As will be described later, a refrigerator (1) according to one embodiment has a damper unit (351) provided in a second passage section (332) formed by a shroud cover (36) and positioned adjacent to a second fan (342), thereby maximizing the pressure compensation effect according to the compensation drive of the second fan (342), thereby effectively preventing the air inside the second switching chamber (12) from flowing backward.
[0086] In addition, by placing the damper unit (351) on the second flow path (332) at the rear of the first switching room (11), the storage space of the second switching room (12) can be maximized.
[0087] Hereinafter, the components of the shroud (33), shroud cover (36), and damper assembly (35) will be described in detail with reference to FIGS. 9 to 14.
[0088] Fig. 9 is a front view of a shroud according to one embodiment. Fig. 10 is a rear view of a shroud according to one embodiment.
[0089] Referring to FIGS. 9 and 10, a first flow path (331) through which cold air flows by a first fan (341) may be formed on the front surface of a shroud (33) according to one embodiment, and a second flow path (332) through which cold air flows by a second fan (342) may be formed on the back surface. The first flow path (331) may be formed entirely on the front surface of the shroud (33), and the second flow path (332) may be formed in an area overlapping the shroud cover (36) on the back surface of the shroud (33).
[0090] A mounting guide (332a) may be formed on the back surface of the shroud (33) to correspond to the appearance of the shroud cover (36). The mounting guide (332a) may indicate the outer boundary of the second flow path (332).
[0091] The shroud (33) may include a first fan opening (333) that is opened in a circular shape and on which a first fan (341) is mounted. Cold air provided from the evaporator may be circulated by the first fan (341) and guided to the first flow path (331) through the first fan opening (333). The shroud (33) may further include a first fan rim (334) formed to surround the first fan opening (333). A first fan fastening portion (334a) to which the first fan (341) is fastened may be formed around the first fan rim (334).
[0092] The shroud (33) may include a plurality of pressure compensation holes (335, 337) formed by penetrating the second flow path (332). In one embodiment, the plurality of pressure compensation holes (335, 337) may include a first pressure compensation hole (335) arranged on the upper side and a second pressure compensation hole (337) arranged on the lower side with respect to the rotational center axis of the second fan (342). The first pressure compensation hole (335) may be larger than the second pressure compensation hole (337). In the refrigerator (1) according to one embodiment, when the second fan (342) is driven, a higher pressure may be applied to the upper side than to the lower side with respect to the rotational center axis of the second fan (342) in the second flow path (332). Accordingly, the first pressure compensation hole (335) can be formed larger than the second pressure compensation hole (337) to ensure uniform pressure compensation for each area.
[0093] Meanwhile, the shroud (33) is arranged around the first pressure compensation hole (335) and may further include a discharge guide (336) protruding forward. The discharge guide (336) can guide the direction of movement of cold air discharged through the first pressure compensation hole (335) to one side to prevent it from being discharged directly forward. For example, the discharge guide (336) can guide cold air discharged from the first pressure compensation hole (335) upward. The pressure compensation effect can be maximized by minimizing the opening size of the first pressure compensation hole (335) through the discharge guide (336).
[0094] The shroud (33) may include a plurality of shroud coupling portions (338a, 338b, 338c) for coupling with the first grill pan (31). The plurality of shroud coupling portions (338a, 338b, 338c) may include a first shroud coupling portion (338a) provided at the lower end, a second shroud coupling portion (338b) provided on the inner surface of the shroud (33), and a third shroud coupling portion (338c) provided at the upper end.
[0095] Fig. 11 is a perspective view of a shroud cover according to one embodiment. Fig. 12 is a perspective view of a shroud cover according to one embodiment viewed from a different angle than Fig. 11.
[0096] Referring to FIGS. 11 and 12, a shroud cover (36) according to one embodiment may include a fan cover portion (361) covering a second fan (342), a damper cover portion (362) covering a damper assembly (35), and a connection cover portion (363) disposed between the fan cover portion (361) and the damper cover portion (362).
[0097] The shroud cover (36) may include a second fan opening (364) formed at a position corresponding to the second fan (342). A fan cover part (361) may be positioned around the second fan opening (364). The fan cover part (361) may be arranged to surround the second fan opening (364). Cold air of the evaporator that flows by the second fan (342) may enter the second flow path part (332) formed inside the shroud cover (36) through the second fan opening (364).
[0098] The shroud cover (36) may include a shroud coupling portion (365) for coupling to the shroud (33).
[0099] A damper assembly (35) may be accommodated inside the damper cover portion (362). The damper cover portion (362) may include a damper opening (366) that is open toward the second switching room (12). Cold air that enters the second flow path portion (332) through the second fan opening (364) may move toward the second switching room (12) through the damper unit (351) and the damper opening (366). The damper opening (366) may be formed to have a size corresponding to the shape of the damper unit (351). Therefore, when the damper unit (351) is closed, the movement of cold air through the damper opening (366) may be blocked. A connection duct (60) may be connected to the damper opening (366) to guide cold air toward the second switching room (12).
[0100] A connecting cover part (363) may be placed between the fan cover part (361) and the damper cover part (362) in the shroud cover (36). The connecting cover part (363) may connect the fan cover part (361) and the damper cover part (362) and form a second flow path part (332).
[0101] Referring to FIGS. 9 and 10 together, the first pressure compensation hole (335) of the shroud (33) may be arranged to overlap with the fan cover part (361) in the front-back direction, and the second pressure compensation hole (337) may be arranged to overlap with the connection cover part (363) in the front-back direction.
[0102] Fig. 13 is a perspective view of a second grill fan assembly according to one embodiment. Fig. 14 is an exploded perspective view of a second grill fan assembly according to one embodiment.
[0103] Referring to FIGS. 13 and 14 along with FIGS. 2 and 3, the second grill fan assembly (40) may be disposed at the rear of the first switching room (11). The second grill fan assembly (40) may be disposed at the lower portion of the first grill fan assembly (30). For example, the second grill fan assembly (40) may be coupled to the lower portion of the first grill fan assembly (30). An evaporator may be provided at the rear of the second grill fan assembly (40) to exchange heat with air and form cold air.
[0104] A second grill pan assembly (40) according to one embodiment may include a second grill pan (41), a second insulating member (42) disposed at the rear of the second grill pan (41), and a third insulating member (43) disposed at the rear of the second insulating member (42).
[0105] The second grill fan (41) forms the rear portion of the lower portion of the first switching chamber (11) and can be injection-molded from a plastic material. The second grill fan (41) can include a plate portion (411) and a suction portion (412) arranged at the bottom of the plate portion (411).
[0106] The plate portion (411) may be formed in a rectangular plate shape, and a fan frame may be formed by bending the periphery for joining with the second insulating member (42) and the third insulating member (43). The suction portion (412) may provide a path for sucking air from the first switching room (11).
[0107] It is necessary to manage the air flow so that the air entering from the second switching room (12) to the second grill fan assembly (40) through the ventilation duct (70) is not discharged to the first switching room (11) through the intake (412). The air entering from the second switching room (12) to the second grill fan assembly (40) is discharged to the first switching room (11) through the intake (412), which may be a case of reverse air flow.
[0108] A second insulating member (42) may be provided at the rear of the second grill fan (41). The second insulating member (42) can prevent cold air provided from the evaporator from being radiated and conducted to the first switching chamber (11).
[0109] The second insulating member (42) may be formed of an EPS (Expanded Polystyrene) material that is easy to mold and has excellent insulating performance. The second insulating member (42) may be formed so that it can be accommodated and adhered to the inside of the second grill pan (41). The perimeter of the second insulating member (42) may be formed so that it can adhere to the inner surface of the second grill pan (41).
[0110] A third insulation member (43) may be provided behind the second insulation member (42). The third insulation member (43) may prevent cold air provided from the evaporator from being radiated and conducted to the first switching chamber (11), and at the same time, may form a path that allows cold air to flow toward the first grill fan assembly (30).
[0111] The third insulating member (43) may be formed of a polyethylene foam (PE Foam) material that is easy to mold and has excellent insulating performance. The third insulating member (43) may be formed so as to be accommodated inside the second grill pan (41) and to be in close contact with the second insulating member (42). The perimeter of the third insulating member (43) may be formed so as to be in close contact with the inner surface of the second grill pan (41).
[0112] Fig. 15 is a front view of a third grill fan assembly according to one embodiment. Fig. 16 is a side schematic view of a third grill fan assembly according to one embodiment. Fig. 17 is an exploded perspective view of a third grill fan assembly according to one embodiment.
[0113] Hereinafter, the third grill fan assembly arranged at the rear of the second switching room (12) will be described with reference to FIGS. 15 to 17.
[0114] A third grill fan assembly according to one embodiment may include a third grill fan (51), a fourth insulating member (53) disposed at the rear of the third grill fan (51), and a filter assembly (52) coupled to the third grill fan (51).
[0115] The third grill pan (51) forms the rear surface of the second switching chamber (12) and can be injection-molded using a plastic material. The third grill pan (51) can be formed in a rectangular plate shape, and a frame can be formed by bending the periphery for joining with the fourth insulating member (53).
[0116] A fourth insulating member (53) may be provided at the rear of the third grill fan (51). The fourth insulating member (53) may form a third passage section (532) that prevents cold air provided from the second passage section (332) from being radiated and conducted to the second switching room (12), and at the same time allows cold air to flow to the second switching room (12). Meanwhile, the fourth insulating member (53) may further include a cold air inlet section (531) that receives cold air from the connecting duct (60).
[0117] The fourth insulating member (53) may be formed of an EPS (Expanded Polystyrene) material that is easy to mold and has excellent insulating performance. The fourth insulating member (53) may be formed so as to be accommodated and adhered to the inside of the third grill pan (51). The perimeter of the fourth insulating member (53) may be formed so as to adhere to the inner surface of the third grill pan (51).
[0118] The third grill fan (51) may include a plurality of plate outlets (513, 515) formed to discharge cold air to the second switching chamber (12). The plurality of plate outlets (513, 515) may be cold air outlets through which cold air supplied to the third grill fan assembly side by the second fan (342) is supplied to the second switching chamber (12).
[0119] The plurality of plate outlets (513, 515) may include a first plate outlet (513) positioned at the center of the third grill fan (51) and a second plate outlet (515) positioned at the upper end of the third grill fan (51). The first plate outlet (513) may be positioned lower than the filter assembly (52), and the second plate outlet (515) may be positioned upper than the filter assembly (52). Accordingly, cold air may be supplied to the second switching room (12) from the upper end, thereby enabling efficient cooling.
[0120] The filter assembly (52) can be coupled to the third grill fan (51). The filter assembly (52) can suck in the air inside the second switching chamber (12) and deodorize it, thereby preventing an unpleasant odor from occurring inside the second switching chamber (12).
[0121] The filter assembly (52) may include a third fan (521), a filter member (522), and a filter cover (523). The third grill fan (51) may include a filter opening (514) formed at a location where the filter assembly (52) is coupled. For example, the third fan (521) or the filter member (522) may be placed in the filter opening (514).
[0122] The third fan (521) can suck in air inside the second switching chamber (12). The filter member (522) can remove odors in the air sucked in by the third fan (521). The filter cover (523) can guide air sucking through a shape that is opened on one side. For example, the filter cover (523) can have a shape that is opened downward. Therefore, it is possible to perform an effective deodorizing function while preventing a decrease in the cooling efficiency of the second switching chamber (12). For example, the phenomenon in which cold air discharged from the second plate discharge port (515) is directly sucked in by the third fan (521) can be prevented due to the filter cover (523) being opened downward. The operation of the third fan (521) can be controlled by the control unit (80).
[0123] Hereinafter, a method for controlling a refrigerator (1) according to one embodiment will be described.
[0124] Fig. 18 is a block diagram showing the flow of control signals of a refrigerator according to one embodiment. Fig. 19 is a table showing a control method of a refrigerator according to one embodiment. Figs. 20 to 22 are schematic diagrams showing the flow of a cold air path according to a control method of a refrigerator according to one embodiment.
[0125] Referring to FIGS. 18 to 22, a refrigerator (1) according to one embodiment may include a control unit (80). The control unit (80) may control the operations of the first fan (341), the second fan (342), the third fan (521), and the damper unit (351) described above. The control unit (80) may control the operations of the first fan (341), the second fan (342), the third fan (521), and the damper unit (351) based on information input by a user to the input unit (90). In addition, the control unit (80) may receive information from a first temperature sensor (91) that measures the temperature of the first switching chamber (11) and a second temperature sensor (92) that measures the temperature of the second switching chamber (12), and control the operations of the first fan (341), the second fan (342), the third fan (521), and the damper unit (351).
[0126] In a refrigerator (1) according to one embodiment, the control unit (80) can independently control the temperatures of the first switching chamber (11) and the second switching chamber (12) according to a value input by the user to the input unit (90).
[0127] For example, the control unit (80) can be controlled in three modes: a first mode (F / R mode) in which the first switching room (11) is maintained at a freezing temperature and the second switching room (12) is maintained at a refrigerating temperature; a second mode (R / R mode) in which the first switching room (11) is maintained at a refrigerating temperature and the second switching room (12) is maintained at a refrigerating temperature; and a third mode (R / Off mode) in which the first switching room (11) is maintained at a refrigerating temperature and the second switching room (12) is maintained at a room temperature.
[0128] For example, the freezing temperature may be -15°C to -20°C, and the refrigeration temperature may be 3°C to 6°C, but is not limited thereto, and the temperatures may be changed by the user. The user may select any one of the first to third modes through the input unit (90).
[0129] The above first mode may include a first cooling mode that cools the first switching room (11) alone, a second cooling mode that cools the second switching room (12) alone, a third cooling mode that cools the first switching room (11) and the second switching room (12) simultaneously, and an off mode that does not cool either the first switching room (11) or the second switching room (12).
[0130] Here, cooling alone may mean cooling the corresponding switching room, but not cooling other switching rooms.
[0131] In the first cooling mode, the damper unit (351) is closed, the first fan (341) operates normally, and the second fan (342) may operate compensatingly. Normal operation refers to operation for forcing cold air to flow, and compensating operation may refer to operation at a low speed to prevent air from flowing back from the damper unit (351) to the second fan (342) or air from the intake side from flowing back to the first switching chamber (11). In other words, compensating operation may refer to operation at a lower speed than normal operation.
[0132] In the second cooling mode, the damper unit (351) is in an open state, the first fan (341) can be driven for compensation, and the second fan (342) can be driven normally.
[0133] In the third cooling mode, the damper unit (351) is in an open state, and both the first fan (341) and the second fan (342) can operate normally.
[0134] In the above Off mode, the damper unit (351) is closed, and neither the first fan (341) nor the second fan (342) may be driven.
[0135] That is, in the first cooling mode and the second cooling mode, the first fan (341) and the second fan (342) can be driven simultaneously. In the first cooling mode, by compensatingly driving the second fan (342), the phenomenon of air in the second switching room (12) flowing back through the damper unit (351) can be prevented. In the second cooling mode, by compensatingly driving the first fan (341), the phenomenon of air in the second switching room (12) flowing back through the intake can be prevented.
[0136] In the above first mode, the first to third cooling modes and the off mode can be performed in the following cases.
[0137] The above first cooling mode can be performed when the temperature of the first temperature sensor (91) is higher than the reference range of the freezing temperature and the temperature of the second temperature sensor (92) is within the reference range of the refrigeration temperature.
[0138] The second cooling mode can be performed when the temperature of the first temperature sensor (91) is within the reference range of the freezing temperature and the temperature of the second temperature sensor (92) is higher than the reference range of the refrigeration temperature.
[0139] The third cooling mode can be performed when the temperature of the first temperature sensor (91) is higher than the reference range of the freezing temperature and the temperature of the second temperature sensor (92) is higher than the reference range of the refrigeration temperature.
[0140] The above Off mode can be performed when the temperature of the first temperature sensor (91) is within the reference range of the freezing temperature and the temperature of the second temperature sensor (92) is within the reference range of the refrigeration temperature.
[0141] The second mode may include a first cooling mode that cools the first switching room (11) alone, a second cooling mode that cools the second switching room (12) alone, a third cooling mode that cools the first switching room (11) and the second switching room (12) simultaneously, and an off mode that does not cool either the first switching room (11) or the second switching room (12).
[0142] In the first cooling mode, the damper unit (351) is closed, the first fan (341) operates normally, and the second fan (342) can operate for compensation.
[0143] In the second cooling mode, the damper unit (351) is in an open state, the first fan (341) does not operate, and the second fan (342) can operate normally.
[0144] In the third cooling mode, the damper unit (351) is in an open state, and both the first fan (341) and the second fan (342) can operate normally.
[0145] In the above Off mode, the damper unit (351) is closed, and neither the first fan (341) nor the second fan (342) may be driven.
[0146] That is, even in the first cooling mode, the first fan (341) and the second fan (342) can be driven simultaneously. In the first cooling mode, by compensatingly driving the second fan (342), the phenomenon of air in the second switching room (12) flowing back through the damper unit (351) can be prevented.
[0147] Since the cooling power by the first fan (341) is stronger than the cooling power by the second fan (342), the duration of the first cooling mode in the second mode may be shorter than the duration of the second cooling mode.
[0148] Meanwhile, in the case of the second cooling mode of the second mode, since the first switching chamber (11) needs to be maintained at a refrigerating temperature, the first fan (341) may not be driven. If the first fan (341) is driven for compensation, the first switching chamber (11) may be overcooled, making it difficult to maintain the refrigerating temperature. Meanwhile, in this case, since the negative pressure of the first flow path (331) is compensated through the pressure compensation hole formed in the shroud (33), the air of the second switching chamber (12) can be prevented from flowing backward through the intake port.
[0149] In the above second mode, the first to third cooling modes and the off mode can be performed in the following cases.
[0150] The above first cooling mode can be performed when the temperature of the first temperature sensor (91) is higher than the reference range of the refrigeration temperature and the temperature of the second temperature sensor (92) is within the reference range of the refrigeration temperature.
[0151] The second cooling mode can be performed when the temperature of the first temperature sensor (91) is within the reference range of the refrigeration temperature and the temperature of the second temperature sensor (92) is higher than the reference range of the refrigeration temperature.
[0152] The third cooling mode can be performed when the temperature of the first temperature sensor (91) is higher than the reference range of the refrigeration temperature and the temperature of the second temperature sensor (92) is higher than the reference range of the refrigeration temperature.
[0153] The above Off mode can be performed when the temperature of the first temperature sensor (91) is within the reference range of the refrigeration temperature and the temperature of the second temperature sensor (92) is within the reference range of the refrigeration temperature.
[0154] The above third mode may include a cooling mode that cools only the first switching room (11) and an off mode that does not cool both the first switching room (11) and the second switching room (12).
[0155] In the above cooling mode, the damper unit (351) is closed, the first fan (341) operates normally, and the second fan (342) can operate for compensation.
[0156] In the above Off mode, the damper unit (351) is closed, and neither the first fan (341) nor the second fan (342) may be driven.
[0157] That is, in the case of the third mode, even in the cooling mode, the first fan (341) and the second fan (342) can be driven simultaneously. In the first cooling mode, by compensatingly driving the second fan (342), the phenomenon of air in the second switching room (12) flowing back through the damper unit (351) can be prevented.
[0158] In the third mode, the cooling mode and the off mode can be performed in the following cases.
[0159] The above cooling mode can be performed when the temperature of the first temperature sensor (91) is higher than the reference range of the refrigeration temperature. The above off mode can be performed when the temperature of the first temperature sensor (91) is within the reference range of the refrigeration temperature.
[0160] Fig. 20 is a schematic diagram showing the flow of cold air in the third cooling mode of the first mode and the third cooling mode of the second mode. That is, it is a schematic diagram showing the flow of cold air in a situation where the damper unit (351) is open and both the first fan (341) and the second fan (342) are operating normally.
[0161] Fig. 21 is a schematic diagram showing the flow of cold air in the first cooling mode of the first mode, the first cooling mode of the second mode, and the cooling mode of the third mode. That is, it is a schematic diagram showing the flow of cold air in a situation where the damper unit (351) is closed, the first fan (341) is operating normally, and the second fan (342) is operating for compensation.
[0162] Fig. 22 is a schematic diagram showing the flow of cold air in the second cooling mode of the first mode and the second cooling mode of the second mode. That is, it is a schematic diagram showing the flow of cold air in a situation where the damper unit (351) is opened and the second fan (342) is operating normally. However, in the case of the second cooling mode of the first mode, the first fan (341) is operated with compensation, but in the case of the second cooling mode of the second mode, the first fan (341) may not be operated.
[0163] A refrigerator (1) according to one embodiment can independently cool two storage spaces with one evaporator, thereby reducing production costs and minimizing reduction in storage space.
[0164] A refrigerator (1) according to one embodiment cools a plurality of independent storage spaces with one evaporator and two fans, and each storage space can be switched to be used as one of a freezer, a refrigerator, and a room temperature storage room, thereby increasing usability.
[0165] According to one embodiment, a refrigerator (1) cools two independent storage spaces with one evaporator and two fans, and when only one storage space is cooled, the air of the other storage space is effectively prevented from flowing back, thereby preventing an increase in the internal temperature and condensation, and preventing frost formation and freezing on the passage due to humid air.
[0166] A refrigerator (1) according to one embodiment can prevent the generation of bad odors in a room temperature storage room through a filter assembly (52) provided in a storage space that can be used as a room temperature storage room.
[0167] Fig. 23 is a front view of a cold air passage device according to another embodiment. Fig. 24 is an exploded perspective view of a cold air passage device according to another embodiment.
[0168] Referring to FIGS. 23 and 24, the refrigerator (1) according to the present embodiment may include a cold air passage device including a grill fan assembly (30') having a structure different from the above-described structure. The grill fan assembly (30') according to the present embodiment may be disposed at the rear of the first switching room (11). The grill fan assembly (30') according to the present embodiment may include a grill fan (31') disposed at the rear of the first switching room (11), first to third fans (341', 342', 343') disposed at the rear of the grill fan (31'), a damper assembly (35), a shroud (33'), and an insulating member (32').
[0169] The grill fan (31') may include a cold air discharge port (311') for discharging cold air and an intake port (312') for sucking in air inside the first switching chamber (11).
[0170] The first fan (341) can supply cold air to the first switching room (11) through the cold air outlet (311') by circulating cold air. The second fan (342) can supply cold air to the second switching room (12) through the damper assembly (35) by circulating cold air. The third fan (521) can supply cold air to an ice maker (not shown) formed on the door (20) side.
[0171] The damper assembly (35) may be positioned adjacent to the second fan (342). Cool air flowing by the second fan (342) may move to the second switching room (12) through the damper assembly (35). The cool air may be selectively flowed depending on the opening and closing of the damper unit (351) of the damper assembly (35). The operation of the second fan (342) may be controlled in conjunction with the operation of the damper unit (351).
[0172] A shroud (33') may be arranged at the rear of the first to third fans (341', 342', 343') and the damper assembly (35). The shroud (33') of the present embodiment may cover all of the first to third fans (341', 342', 343') and the damper assembly (35) from the rear. The shroud (33') of the present embodiment may include a first fan cover (331') that covers the first fan (341), a second fan cover (332') that covers the second fan (342) and the damper assembly (35), and a third fan cover (333') that covers the third fan (521). The covers of the first to third fans (341', 342', 343') can be formed in a compartmentalized manner so that the cold air flowing by the first to third fans (341', 342', 343') can flow independently.
[0173] In this embodiment, an insulating member (32') may be placed at the rear of the shroud (33'). The insulating member (32') may be formed of an EPS (Expanded Polystyrene) material that is easy to mold and has excellent insulating performance.
[0174] In addition, the control method of the refrigerator (1) according to the embodiment described above with reference to FIGS. 18 and 19 can be applied in the same manner.
[0175] The refrigerator (1) according to the present embodiment can independently cool two storage spaces with one evaporator, thereby reducing production costs and minimizing reduction in storage space.
[0176] The refrigerator (1) according to the present embodiment cools a plurality of independent storage spaces with one evaporator and two fans, and each storage space can be switched to be used as one of a freezer, a refrigerator, and a room temperature storage room, thereby increasing usability.
[0177] A refrigerator (1) according to the present embodiment is a refrigerator (1) that cools two independent storage spaces with one evaporator and two fans, and when only one storage space is cooled, the air of the other storage space is effectively prevented from flowing back, thereby preventing an increase in the internal temperature and condensation, and preventing frost formation and freezing on the passage due to humid air.
[0178] A refrigerator according to one embodiment can independently cool two storage spaces with one evaporator, thereby reducing production costs and minimizing storage space reduction, and thus is recognized as having industrial applicability.
[0179] According to one embodiment, a refrigerator cools a plurality of independent storage spaces with one evaporator and two fans, and each storage space can be switched to be used as one of a freezer, a refrigerator, and a room temperature storage space, thereby increasing usability, and thus its industrial applicability is recognized.
[0180] According to one embodiment, a refrigerator cools two independent storage spaces with one evaporator and two fans, and when only one storage space is cooled, the air in the other storage space is effectively prevented from flowing back, thereby preventing an increase in the internal temperature and condensation, and preventing frost formation and freezing on the passage due to humid air, and thus the industrial applicability is recognized.
[0181] According to one embodiment, a refrigerator can prevent the generation of an unpleasant odor in a room temperature storage room through a filter assembly provided in a storage space that can be used as a room temperature storage room, and thus its industrial applicability is recognized.
Claims
1. Cabinet; A first switching room provided on one side of the above cabinet and capable of switching between freezing temperature and refrigerating temperature; A second switching room provided on the other side of the above cabinet and capable of switching between refrigeration temperature and room temperature; An evaporator provided in the above cabinet and forming cold air; and Including a first grill fan assembly arranged at the rear of the first switching room, The above first grill pan assembly, 1st grill pan, A shroud disposed at the rear of the first grill fan, comprising a first flow path section for supplying cold air to the first switching chamber, and a second flow path section formed on the opposite surface of the first flow path section for supplying cold air to the second switching chamber; A shroud cover placed at the rear of the above shroud; A first fan provided in the first duct section and causing the cold air of the evaporator to flow to the first duct section; A second fan provided in the second duct section and causing the cold air of the evaporator to flow to the second duct section, and It is provided in the second euro section and includes a damper for selectively flowing the cold air flowing by the second fan to the second switching room. The above shroud cover is a refrigerator that covers the second fan and the damper from the rear.
2. In paragraph 1, The above first fan is provided in the first opening formed in the above shroud, A refrigerator wherein the second fan is provided in a second opening formed in the shroud cover.
3. In paragraph 1, The above shroud includes a plurality of pressure compensation holes formed through the first euro section and the second euro section to spatially connect them, A refrigerator in which the plurality of pressure compensation holes are arranged on both sides around the rotation axis of the second fan.
4. In paragraph 3, The above shroud cover includes a fan cover portion that covers the second fan from the rear, a damper cover portion that covers the damper from the rear, and a connecting portion located between the fan cover portion and the damper cover portion. The above plurality of pressure compensation holes include a first pressure compensation hole overlapping the fan cover portion in the front-back direction, and a second pressure compensation hole overlapping the connection portion in the front-back direction. A refrigerator wherein the first pressure compensation hole is larger than the second pressure compensation hole.
5. In paragraph 1, Further comprising a second grill fan assembly disposed at the rear of the second switching room, The above second grill pan assembly, A second grill fan including a third flow path section that supplies cold air provided from the damper to the second switching room, It is equipped with a filter assembly for drawing air from the second switching room and flowing it to the third flow path, and is provided in the second grill fan. The above filter assembly, A third fan that sucks the air from the second switching room, A filter member positioned in front of the third fan and deodorizing the air, and A refrigerator comprising a filter cover positioned in front of the filter member and formed to be opened downward.
6. In paragraph 1, A refrigerator in which the first grill fan includes a cold air outlet located above the second fan.
7. In paragraph 1, It further includes a control unit that controls the operation of the first fan, the second fan, and the damper to control the temperature of the first switching room and the second switching room, The above control unit, A first mode in which the first switching room is maintained at a freezing temperature and the second switching room is maintained at a refrigerating temperature; A second mode in which the first switching room is maintained at a refrigerating temperature and the second switching room is maintained at a refrigerating temperature, and A refrigerator that controls the operations of the first fan, the second fan, and the damper so as to be operated in a third mode in which the first switching room is maintained at a refrigerating temperature and the second switching room is maintained at a room temperature.
8. In paragraph 7, The above first mode is, A first cooling mode in which the first switching room is cooled but the second switching room is not cooled, and The second switching room includes a second cooling mode in which the second switching room is cooled but the first switching room is not cooled. In the first cooling mode, the damper is closed and the first fan is controlled to rotate faster than the second fan. A refrigerator in which, in the second cooling mode, the damper is opened and the second fan is controlled to rotate faster than the first fan.
9. In paragraph 8, The above first cooling mode is, The temperature of the above first switching room is higher than the standard range of the above freezing temperature, The temperature of the second switching room is performed when it is within the reference range of the refrigeration temperature. The above second cooling mode is, The temperature of the above first switching room is within the reference range of the above freezing temperature, The temperature of the second switching room is performed when it is higher than the reference range of the refrigeration temperature. In the first cooling mode and the second cooling mode, A refrigerator in which the first fan and the second fan are controlled to rotate simultaneously.
10. In paragraph 7, The second mode is, A first cooling mode in which the first switching room is cooled but the second switching room is not cooled, and The second switching room includes a second cooling mode in which the second switching room is cooled but the first switching room is not cooled. In the first cooling mode, the damper is closed and the first fan is controlled to rotate faster than the second fan. A refrigerator in which, in the second cooling mode, the damper is opened and the second fan is controlled to rotate faster than the first fan.
11. In paragraph 10, A refrigerator in which, in the second cooling mode, the first fan is stopped.
12. In paragraph 10, The above first cooling mode is, The temperature of the above first switching room is higher than the standard range of the above refrigeration temperature, A refrigerator that is operated when the temperature of the second switching room is within the reference range of the refrigeration temperature.
13. In paragraph 10, The above second cooling mode is, The temperature of the above first switching room is within the standard range of the above refrigeration temperature, A refrigerator that is operated when the temperature of the second switching room is higher than the standard range of the refrigeration temperature.
14. In paragraph 10, In the first cooling mode and the second cooling mode, The first fan and the second fan are controlled to rotate simultaneously, A refrigerator wherein the duration of the first cooling mode is shorter than the duration of the second cooling mode.
15. In paragraph 7, The third mode includes a cooling mode in which the first switching room is cooled but the second switching room is not cooled. In the cooling mode, the damper is closed and the first fan is controlled to rotate faster than the second fan. A refrigerator in which, in the above cooling mode, the first fan and the second fan are controlled to rotate simultaneously.
Citation Information
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