WO2019129240A1 - Refrigerator - Google Patents

Abstract

Provided is a refrigerator (100), comprising a refrigeration inner liner (120), a refrigeration air duct (125), a refrigeration evaporator (160) and a centrifugal blower (180), wherein the refrigeration air duct (125) extends along a rear wall of the refrigeration inner liner (120) from a lower to an upper part thereof; a humidification air duct (126), in communication with the refrigeration air duct (125) and extending forward from the rear wall of the refrigeration inner liner (120), is formed at the bottom of the refrigeration inner liner (120), a water storage region (128) is formed on a bottom wall of the humidification air duct (126), and an opening is formed at a position, corresponding to the water storage region (128), on a bottom wall of a refrigeration chamber (121); and the centrifugal blower (180) is located in the refrigeration air duct (125) and is close to the humidification air duct (126), and the centrifugal blower (180) is configured to prompt refrigerated air in the refrigeration air duct (125) to flow into the refrigeration chamber (121), and is configured to prompt part of the returned air in the refrigeration chamber (121) to be guided into the humidification air duct (126), such that humid air above the water storage region is carried into the refrigeration chamber (121), and thereby improving the humidity of the refrigeration chamber (121).

Description

refrigerator Technical field

The invention relates to the field of home appliance technology, and in particular to a refrigerator.

Background technique

Fruits and vegetables are common foods stored in refrigerators. Fruit and vegetable preservation needs to be in a relatively high humidity space. Traditional refrigerators usually use the cold airflow circulating in the refrigerator to cool the food inside the refrigerator. Because of the circulation of cold air in the refrigerator, the moisture of the food in the refrigerator. Constantly taken away by air-conditioning, the humidity in the refrigerator room of the traditional refrigerator is low, which does not meet the high moisturizing and fresh-keeping storage requirements of fruits and vegetables.

Summary of the invention

In view of the above problems, it is an object of the present invention to provide a refrigerator that overcomes the above problems or at least partially solves the above problems.

A further object of the present invention is to achieve humidification of the refrigerating compartment and increase the humidity of the refrigerating compartment.

The invention provides a refrigerator comprising:

a refrigerating inner tank defining a refrigerating chamber having an open front side;

a refrigerated air duct that extends from bottom to top along the rear wall of the refrigerated bladder in the refrigerated bladder;

a refrigerated evaporator configured to cool air in the refrigerated air duct;

The bottom of the refrigerating inner tank is formed with a humidifying air passage which penetrates the refrigerating air passage and extends from the rear side of the refrigerating inner tank rear side;

The bottom wall of the humidification duct is formed with a water storage area that is recessed downward;

An opening is formed at a position corresponding to a bottom wall of the refrigerating compartment corresponding to the water storage area to connect the refrigerating compartment with the water storage zone;

The refrigerator further includes a centrifugal fan, the centrifugal fan is located in the refrigerating air duct and adjacent to the humidifying air duct, and the centrifugal fan is configured to cause air in the refrigerating air duct cooled by the evaporator to flow into the refrigerating chamber, and is configured to prompt a part of the refrigerating chamber to return air The humidification air duct is guided to facilitate the use of a portion of the return air to bring the humid air above the water storage area into the refrigerating chamber through the opening, thereby increasing the humidity of the refrigerating chamber.

Optionally, the water storage area is located at a position close to the front side of the humidification air passage to facilitate water addition by the user;

The refrigerator also includes:

The humidifying cover plate is detachably covered on the outer circumference of the opening, and the humidifying cover plate is formed with a plurality of venting holes, so that the humid air above the water storage area enters the refrigerating chamber through the plurality of venting holes.

Optionally, the refrigerator further includes:

a humidity sensor disposed in the refrigerating chamber and configured to monitor the humidity of the refrigerating chamber;

The damper is disposed on the front side of the refrigerating air duct and located at a rear side of the humidifying air duct, and is configured to open the humidifying air duct when the humidity of the refrigerating chamber is lower than a set value to penetrate the humidifying air duct and the refrigerating air duct.

Optionally, the bottom wall of the humidifying air duct is located at a front side of the damper and is located at a position on the rear side of the water storage area to form an upwardly protruding boss;

The direction in which the humidifying air passage extends from the rear side of the rear wall of the refrigerating inner tank is recorded as the length direction of the humidifying air passage;

The boss extends from one side of the width direction of the humidifying air passage to the other side;

The bottom wall of the refrigerating compartment protrudes upward from the position corresponding to the boss to provide a space for the boss to avoid;

The upper end surface of the boss is spaced apart from the bottom wall of the refrigerating chamber to facilitate the flow of air in the humidifying duct, and the upper end surface of the boss is higher than the upper end surface of the opening to prevent the water in the water storage area from overflowing to the damper At the office.

Optionally, the refrigerator further includes:

a refrigerator compartment door disposed on a front side of the refrigerator compartment and configured to open or close the refrigerator compartment;

The cold storage compartment is partitioned by a partition plate to form a first storage compartment located at a lower portion of the partitioning plate and a second storage compartment located at a partitioning upper portion;

The refrigerator also includes:

a refrigerated drawer disposed in the first storage compartment;

a bottle holder disposed at a position corresponding to the refrigerating drawer inside the door of the refrigerating compartment;

The refrigerated drawer is spaced from the bottom wall of the refrigerating compartment, and the refrigerated drawer is spaced from the bottle holder to facilitate the circulation of humid air entering the refrigerating compartment from the water storage zone.

Optionally, the area of the plurality of venting holes on the humidifying cover plate is opposite to the interval area between the refrigerating drawer and the bottle holder;

The vertical height of the refrigerated drawer and the bottom wall of the refrigerating compartment is greater than or equal to 20 mm, and the horizontal distance between the refrigerated drawer and the bottle holder is greater than or equal to 20 mm to ensure smooth air circulation.

Optionally, the refrigerator further includes:

a duct cover disposed on the rear side of the refrigerating chamber and defining a refrigerating air duct together with the rear wall of the refrigerating tank;

An upper portion of the duct cover is formed with an air outlet communicating with the refrigerating chamber;

A lower portion of the duct cover is formed with a return air port communicating with the refrigerating chamber at a position corresponding to the air inlet of the centrifugal fan.

Optionally, the refrigerator further includes:

a fan cover disposed on a wall surface of the air duct cover facing the rear wall of the refrigerating inner tank;

The centrifugal fan is disposed on the fan cover and located between the fan cover and the air duct cover;

The upper end of the fan cover has a shutter protruding toward the air duct cover;

The shutter is spaced from the air duct cover to facilitate airflow in the refrigerating air duct;

The lower end surface of the fan cover is formed with a vent to facilitate communication of the refrigerating air passage with the humidifying air passage.

Optionally, the refrigerator further includes:

a baffle, located above the fan cover, formed or disposed on the wall surface of the air duct cover facing the rear wall of the refrigerating inner tank, extending toward the rear wall of the refrigerating inner tank, and spaced apart from the rear wall of the refrigerating inner tank;

A part of the surface of the baffle is directly above the shutter so that the baffle blocks part of the surface of the shutter to prevent the defrosted water droplets in the refrigerating air passage from falling onto the centrifugal fan.

Optionally, the shielding plate is disposed obliquely, and an end surface of the shielding plate facing the air duct cover is higher than an end surface of the shielding plate facing the rear wall of the refrigerating inner tank;

The baffle is inclined, and the end surface of the baffle on the air duct cover is higher than the end surface of the baffle facing the rear wall of the refrigerating inner tank.

In the refrigerator of the present invention, the bottom of the refrigerating inner tank is formed with a humidifying air passage penetrating through the refrigerating air duct, and the humidifying air duct is formed with a water storage area, and the bottom wall of the refrigerating chamber is formed with an opening at a position corresponding to the water storage area, and the centrifugal fan is located In the refrigerating air duct and adjacent to the humidifying air duct, under the action of the centrifugal fan, part of the return air circulating between the refrigerating chamber and the refrigerating air duct is guided to the humidifying air duct, and is blown to the water storage area by the centrifugal fan, and the water storage area The moisture evaporates through the opening into the refrigerating compartment, thereby increasing the humidity of the refrigerating compartment and achieving humidification of the entire refrigerating compartment.

Further, in the refrigerator of the present invention, the humidity sensor monitors the humidity of the refrigerating compartment, and the damper disposed on the front side of the refrigerating duct and located at the rear side of the humidifying duct is controlled to open or close according to the humidity of the refrigerating compartment monitored by the humidity sensor, thereby The refrigerating compartment can be humidified flexibly according to the humidity of the refrigerating compartment, and the humidity of the entire refrigerating compartment can be adjusted.

Further, in the refrigerator of the present invention, the bottom wall of the humidifying air duct is located on the front side of the damper and is located at a position on the rear side of the water storage area, and an upwardly projecting boss is formed, and the upper end surface of the boss is higher than the upper end surface of the opening. Therefore, it is possible to prevent the user from inadvertently pouring too much water into the water storage area to cause the damper to be immersed in water.

Further, in the refrigerator of the present invention, the position of the vent hole on the humidifying cover is located between the refrigerating drawer and the bottle holder, and the vertical height of the bottom wall of the refrigerating drawer and the refrigerating chamber is greater than or equal to 20 mm, and the refrigerated drawer and the bottle The horizontal distance of the seat is greater than or equal to 20 mm, thereby ensuring the smooth flow of the humid air entering the refrigerating chamber by the vent hole, and facilitating the smoothness of the humidified air supply.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic structural view of a refrigerator in accordance with one embodiment of the present invention;

2 is a schematic structural view of another direction of a refrigerator according to an embodiment of the present invention;

Figure 3 is an enlarged view of a portion A of Figure 1;

4 is a schematic block diagram of a refrigerator in accordance with one embodiment of the present invention;

Figure 5 is a combined structural view of a duct cover and a fan cover of a refrigerator in accordance with one embodiment of the present invention.

Detailed ways

This embodiment first provides a refrigerator 100, FIG. 1 is a schematic structural view of a refrigerator 100 according to an embodiment of the present invention, and FIG. 2 is a schematic structural view of another direction of the refrigerator 100 according to an embodiment of the present invention. 3 is an enlarged view of a portion A of FIG. 1.

As shown in FIG. 1 and FIG. 2, the refrigerator 100 generally includes a case 110. The case 110 defines at least one inner open inner liner, and the inner chamber defines a storage compartment, and the inner circumference of the inner liner is covered. There is a casing, and the casing and the inner tank are filled with a heat insulating material, such as a foaming agent, to avoid loss of cold. There are usually a plurality of inner tanks, such as a refrigerating inner tank 120, a freezing inner tank 140, a temperature changing inner tank, and the like, and the corresponding storage compartment is a refrigerating compartment 121, a freezing compartment 141, and a greenhouse. The number and function of the specific liners can be configured according to prior requirements. In some embodiments, the storage temperature of the refrigerating chamber 121 may be 2 to 9 ° C, or may be 4 to 7 ° C; the storage temperature of the freezing chamber 141 may be -22 to -14 ° C, or may be -20 to 16 ° C . The freezing compartment 141 is disposed below the refrigerating compartment 121120, and the changing greenhouse is disposed between the freezing compartment 141 and the refrigerating compartment 121. The temperature within the freezer compartment 141 typically ranges from -14 °C to -22 °C. The greenhouse can be adjusted to suit the needs of the food or as a storage room.

The storage compartment may be closed by a door body for opening and closing the storage compartment. For example, the refrigerating compartment door body 130, the freezing compartment door body 150, and the greenhouse door may be provided for each of the refrigerating compartment 121, the freezing compartment 141, and the changing greenhouse. The door body can include a pivot type as well as a drawer type. The pivoting door body can be pivotally opened by being hinged on one side of the front portion of the casing 110.

The storage compartment may also be divided into a plurality of storage spaces by a partition plate. As shown in FIG. 1, the refrigerating compartment 121 is partitioned by a partitioning plate 122 located at the lowermost portion to be located at a lower portion of the partitioning plate 122. a first storage compartment and a second storage compartment located at an upper portion of the partitioning plate 122. The first storage compartment may be provided with a refrigerating drawer 123. The second storage compartment may be further divided by the plurality of partitioning plates 122. The storage space, as shown in FIG. 1, is divided by the partition plate 122 into three storage spaces from top to bottom.

The refrigerator 100 can be a direct-cooling refrigerator or an air-cooled refrigerator. The refrigerator 100 of the embodiment is an air-cooled refrigerator, which can use a compression refrigeration cycle as a cold source, and the refrigeration system can be a compressor, a condenser, and a throttle. A refrigeration cycle system consisting of a device and an evaporator. The evaporator is configured to provide a cooling volume to the storage compartment. Since the refrigeration system and the refrigeration principle of the refrigerator 100 are well known and readily realized by those skilled in the art, in order not to obscure and obscure the inventive aspects of the present application, the refrigeration system itself will not be described later.

In the present embodiment, the refrigerator 100 includes a refrigerating duct 125, a refrigerating evaporator 160, and a centrifugal fan 180 disposed in the refrigerating duct 125 and located at a lower portion of the refrigerating duct 125. The refrigerating duct 125 extends from the bottom to the rear of the refrigerating tank 120 in the refrigerating tank 120, and the refrigerating evaporator 160 is configured to cool the air in the refrigerating duct 125. The centrifugal fan 180 is configured to cause air in the refrigerating duct 125 cooled by the refrigerating evaporator 160 to flow into the refrigerating chamber 121.

In one of the embodiments of the present embodiment, the refrigerated evaporator 160 is located within the refrigerating duct 125 and is configured to exchange heat directly with the air in the refrigerating duct 125 to directly cool the air in the refrigerating duct 125.

In one embodiment of the present embodiment, as shown in FIG. 1, the refrigerating evaporator 160 may be located outside the rear wall of the refrigerating inner tank 120 and configured to indirectly cool the air in the refrigerating air duct 125. Since the foaming layer is filled between the rear wall of the refrigerating inner tank 120 and the outer casing of the casing, the refrigerating evaporator 160 is located outside the rear wall of the refrigerating inner tank 120, which is also understood to be between the rear wall of the refrigerating inner tank 120 and the foaming layer. A refrigerating evaporator 160 is formed, and the refrigerating evaporator 160 is located in the refrigerating evaporator chamber between the rear wall of the refrigerating inner tank 120 and the foaming layer, and the refrigerating evaporator 160 abuts against the rear wall of the refrigerating inner tank 120, and the refrigerating evaporator 160 The air in the refrigerating duct 125 is indirectly cooled by the rear wall of the refrigerating tank 120.

The refrigerator 100 may further include a duct cover 170 provided on the rear side of the refrigerating chamber 121, and the duct cover 170 and the rear wall of the refrigerating tank 120 together define a refrigerating duct 125. As shown in FIG. 1 and FIG. 3, an air outlet 125a communicating with the refrigerating chamber 121 is formed at an upper portion and/or a side portion of the duct cover 170, and a lower portion of the duct cover 170 is formed with a return air port communicating with the refrigerating chamber 121. 170b. As shown in FIG. 1, the upper portion and the side portion of the air duct cover 170 are formed with an air outlet 125a. The air return port 170b corresponds to the air inlet of the centrifugal fan 180, and the air return port 170b can be formed by the air duct cover 170. The annular grille may be annular, that is, the lower portion of the duct cover 170 is formed with a loop-back style grille at a position corresponding to the air inlet direction of the centrifugal fan 180 to define the return air outlet 170b.

The bottom end of the air duct cover 170 may be formed with a downwardly projecting card member, and the card member may be a card board or a card block. The bottom of the refrigerating inner tube 120 is formed with a card corresponding to the card member at a position corresponding to the refrigerating air channel 125. The slot and the card are engaged in the card slot to increase the stability of the installation of the air duct cover 170. The card member may be two, and the two card members extend in the width direction of the duct cover 170.

In particular, the bottom of the refrigerating inner tank 120 is formed with a humidifying duct 126 that penetrates the refrigerating duct 125 and extends from the rear wall of the refrigerating tank 120 to the front side. It can also be understood that the humidifying duct 126 is provided by the bottom wall of the refrigerating chamber 121. The bottom wall of the refrigerating inner tank 120 is defined, and the setting of the humidifying air duct 126 does not occupy the space of the refrigerating chamber 121. The centrifugal fan 180 should be placed adjacent to the humidification duct 126. The bottom wall of the humidification duct 126 is formed with a water storage area 128 that is recessed downward, and a bottom wall of the refrigerating chamber 121 is formed with an opening at a position corresponding to the water storage area 128, thereby communicating the water storage area 128 with the refrigerating chamber 121.

In the present embodiment, "front" means a direction close to the door of the storage compartment.

As shown in FIGS. 1 and 3, the centrifugal fan 180 is configured to urge a portion of the return air from the refrigerating chamber 121 to the humidifying duct 126. During the operation of the centrifugal fan 180, a part of the return air flows upward by the centrifugal fan 180, directly or indirectly cooled by the refrigerated evaporator 160, and then enters the refrigerating chamber 121, and a part of the return air is blown to the storage through the humidifying duct 126. The water zone 128, the water in the water storage zone 128 is evaporated into the refrigerating compartment 121 through the opening formed in the bottom wall of the refrigerating compartment 121, so that the humid air flows in the refrigerating compartment 121, increasing the humidity of the entire refrigerating compartment 121.

The water storage zone 128 may be located near the front side of the humidification air duct 126, that is, the water storage area 128 is disposed closer to the refrigerating compartment door body 130. The water storage area 128 can serve as a water tank that directly holds water, or a separate water tank can be disposed in the water storage area 128. The outer periphery of the opening formed at the bottom wall of the refrigerating chamber 121 corresponding to the water storage area 128 is covered with a detachable humidifying cover plate 128a. The humidifying cover plate 128a is formed with a plurality of vent holes 128a1, and the water storage area 128 evaporates. Air enters the refrigerating chamber 121 through the plurality of vent holes 128a1 to raise the humidity of the refrigerating chamber 121.

In one embodiment of the present invention, the refrigerator 100 may further include a damper 127 and a humidity sensor 131 disposed in the refrigerating chamber 121 configured to monitor the humidity of the refrigerating chamber 121. The damper 127 is disposed on the front side of the refrigerating air duct 125 and located at the rear side of the humidifying air duct 126. The damper 127 can control to open or close the humidifying air duct 126 according to the humidity of the refrigerating chamber 121 monitored by the humidity sensor, so as to flexibly adjust the refrigerating The humidity of the chamber 121. For example, the damper 127 is configured to open the humidifying air passage 126 when the humidity of the refrigerating chamber 121 is lower than a set value, and to pass through the humidifying air passage 126 and the refrigerating air duct 125, and the centrifugal fan 180 passes the portion of the refrigerating chamber 121 back to the air through the humidifying chamber. The air passage 126 is blown into the water storage area 128, and the humid air evaporated by the water storage area 128 enters the refrigerating chamber 121 to humidify the refrigerating chamber 121, so that the humidity of the refrigerating chamber 121 can be flexibly adjusted according to the humidity of the refrigerating chamber 121.

In one embodiment of the present invention, the bottom wall of the humidifying air duct 126 is located on the front side of the damper 127 and is located at a position on the rear side of the water storage area 128 to form an upwardly projecting boss 126b. The humidifying air duct 126 is provided by the refrigerating inner tank 120. The direction in which the rear wall extends to the front side is referred to as the longitudinal direction of the humidifying duct 126, and the boss 126b extends from one side in the width direction of the humidifying duct 126 to the other side. The bottom wall of the refrigerating chamber 121 protrudes upward from the position corresponding to the boss 126b to provide a relief space for the boss 126b. The upper end surface of the boss 126b is spaced apart from the bottom wall of the refrigerating chamber 121 to facilitate the flow of air in the humidifying duct 126. And the upper end surface of the boss 126b is higher than the upper end surface of the opening formed at the position corresponding to the bottom wall of the refrigerating chamber 121 and the water storage area 128, thereby preventing the user from inadvertently pouring too much water into the water storage area 128 to cause the damper 127 The risk of being soaked in water.

The refrigerator 100 further includes a refrigerating drawer 123 disposed in the first storage compartment and a bottle holder 124 disposed at a position inside the refrigerating compartment door 130 corresponding to the refrigerating drawer 123. The refrigerating drawer 123 is spaced apart from the bottle holder 124 by a distance, and the refrigerating drawer 123 is spaced apart from the inner wall of the refrigerating chamber 121 to facilitate the flow of air in the refrigerating chamber 121. Alternatively, the refrigerating drawer 123 is located directly in front of the air return port 170b of the duct cover 170, and the user does not observe the return air port 170b from the front side to increase the aesthetics of the refrigerator 100.

Specifically, the area where the opening on the bottom wall of the refrigerating compartment 121 is located or the area where the plurality of vent holes 128a1 on the humidifying cover 128a are located is opposite to the interval area between the refrigerating drawer 123 and the bottle holder 124, that is, refrigerating The space between the drawer 123 and the bottle holder 124 is located directly above the bottom wall of the refrigerating chamber 121 or directly above the plurality of vent holes 128a1 on the humidifying cover 128a to form a wet air circulation space. Moreover, the vertical height of the refrigerating drawer 123 and the bottom wall of the refrigerating chamber 121 is greater than or equal to 20 mm, and the horizontal distance between the refrigerating drawer 123 and the bottle holder 124 is greater than or equal to 20 mm to sufficiently ensure the smoothness of the humidified air supply.

Referring to FIG. 5, the refrigerator 100 of the present embodiment may further include a fan cover 191. The fan cover is disposed on a wall surface of the air duct cover plate 170 facing the rear wall of the refrigerating inner tank 120. The fan cover 191 is spaced apart from the bottom of the refrigerating inner tank 120, and the fan is disposed. The upper end of the cover has a shutter 191a protruding toward the air duct cover 170, and the shutter is spaced apart from the air duct cover 170. The centrifugal fan 180 is disposed on the fan cover and located in a space between the fan cover and the air duct cover 170. The air inlet direction of the centrifugal fan 180 faces the air return port 170b of the air duct cover 170. Under the action of the centrifugal fan 180, The airflow flowing out of the air return port 170b flows upward through the space between the fan cover and the air duct cover 170, is indirectly cooled by the refrigerating evaporator 160, and enters the refrigerating chamber 121, thereby forming a circulation of the airflow.

A recessed portion that is recessed outward is formed at a position near the lower portion of the rear wall of the refrigerating inner tank 120. A portion of the duct cover 170 corresponding to the recess protrudes into the refrigerating chamber 121, thereby facilitating the arrangement of the fan cover, the fan, and the like. The escaping space reduces the distance that the air duct cover 170 protrudes into the refrigerating chamber 121 due to the presence of the recess, thereby reducing the influence of the arrangement of the fan, the fan cover, and the like on the space of the refrigerating chamber 121. Moreover, most of the surface of the air duct cover 170 is flat, and the appearance is more flat, and the storage space of the refrigerating chamber 121 is increased, and the appearance of the refrigerator 100 is improved.

If the refrigerating evaporator 160 is located in the refrigerating air duct 125, during use of the refrigerator 100, the refrigerating evaporator 160 and the inner wall of the refrigerating duct 125 may affect the direct heat exchange effect of the air in the refrigerating evaporator 160 and the refrigerating duct 125 due to frost formation. If the refrigerating evaporator 160 is located outside the rear wall of the refrigerating inner tank 120, the inner wall of the refrigerating air duct 125 may affect the indirect heat exchange effect of the air in the refrigerating air duct 125 and the refrigerating evaporator 160 due to frost formation. Therefore, the refrigerator 100 needs to be defrosted periodically during use.

The bottom wall of the refrigerating inner tank 120 is formed with a water tank 129 which is recessed downward at a position corresponding to the refrigerating duct 125, and a drain opening (not shown) is formed in the bottom of the tank 129. In the defrosting process of the refrigerator 100, a large block of frost or defrosted water in the refrigerating duct 125 is dropped down into the sump 129 and discharged through the drain port. Generally, a water pipe is connected to the drain port, and a water receiving tray is disposed in the compressor chamber of the refrigerator 100 (the compressor chamber is generally located at a lower rear side of the freezing tank 140), and the defrosting water enters the water pipe through the drain port and is transported by the water pipe to the water pipe. In the water tray, the water in the water tray can absorb the heat released by the compressor and the condenser in the compressor chamber to evaporate.

The lower end surface of the fan cover may be formed with a vent opening penetrating the refrigerating duct 125, thereby making the air passage above and below the centrifugal fan 180 unobstructed. When the refrigerator 100 is cooled, a part of the return air having a high temperature flowing out from the air return port 170b of the duct cover 170 is blown toward the upper evaporator by the centrifugal fan 180, and a part of the return air is blown toward the lower water tank 129, and then The air is blown back to the evaporator, thereby avoiding the risk of the outlet temperature being too low to be frozen, and a portion of the blowing to the humidification duct 126 to bring the water vapor above the water storage area 128 through the opening of the bottom wall of the refrigerating chamber 121 to In the refrigerator compartment 121, the refrigerator compartment 121 is humidified. Further, the return air blown to the lower water pool 129 increases the wind speed around the water pool 129, accelerates the evaporation of the defrosting water in the water storage area of the water tank 129, and improves the humidity of the upward flowing return air flow. Thereby, the humid air can be further introduced into the refrigerating chamber 121 through the air outlet 125a at the upper portion of the duct cover 170, further increasing the humidity of the refrigerating chamber 121.

In this embodiment, the shutter of the fan cover protrudes toward the air duct cover 170, which can block a part of the space of the upper part of the centrifugal fan 180, so as to prevent the defrosting water drop from falling onto the centrifugal fan 180. Preferably, the shutter is disposed obliquely, and the end surface of the shutter toward the air duct cover 170 is higher than the end surface of the rear wall facing the cold storage tank 120, that is, the front end surface of the shutter is higher than the rear end surface, or The shutter is obliquely extended from the upper end of the fan cover to the upper side, so that the defrosting water slides down the inclined surface of the shutter to the rear of the fan cover, and drops into the lower water tank 129 to prevent the defrosting water from falling to the centrifugal fan 180. on.

A baffle plate 180c may be disposed above the fan cover, and the baffle plate is formed or disposed on the wall surface of the air duct cover plate 170 facing the rear wall of the refrigerating inner tank 120, and extends toward the rear wall of the refrigerating inner tank 120, and after refrigerating the inner tank 120 The wall spacing is set, and part of the surface of the baffle is directly above the shutter, that is, part of the surface of the baffle blocks part of the surface of the shutter. Since the baffle extends from the air duct cover 170 toward the rear wall of the refrigerating inner tank 120, the shutter extends from the upper end of the fan cover toward the air duct cover 170, and the centrifugal fan 180 is between the air duct cover 170 and the fan cover. Therefore, under the joint limitation of the baffle and the shutter, the upper space of the centrifugal fan 180 is completely blocked, so that the defrosted water drop can be prevented from falling onto the centrifugal fan 180, and the risk of the short circuit of the centrifugal fan 180 due to contact with water is avoided. Increase the safety of the operation of the centrifugal fan 180.

The baffle plate may be disposed obliquely, and the end surface of the baffle plate on the air duct cover plate 170 is higher than the end surface of the baffle plate facing the rear wall of the refrigerating inner tube 120, that is, the front end surface of the baffle plate is higher than the rear end surface of the baffle plate Or, the baffle is obliquely extended from the position of the air duct cover 170 to the rear and the lower side, and the defrosted water dripping on the baffle slides down the inclined oblique surface of the baffle to the lower plate located below the baffle, and Further sliding down the shutter to the lower back of the sump 129.

In one embodiment of the present invention, the water tank 129 may be a trapezoidal groove, and the water tank 129 has a trapezoidal shape parallel to the rear wall of the refrigerating inner tank 120, and the upper edge of the water tank 129 has a trapezoidal long edge, and the sump 129 The lower edge is a short edge of a trapezoid, and it can also be understood that the notch of the sump 129 corresponds to the long edge of the trapezoid, the lower end surface of the sump 129 corresponds to the short edge of the trapezoid, the notch of the sump 129 and the sump 129 The opposite two oblique end faces between the lower end faces correspond to the two waists of the trapezoid. The drain port is formed on the lower end surface of the sump 129, and the defrosted water drops into the sump 129, slides along the inclined end surface of the sump 129 to the drain port, and is discharged through the drain port, thereby facilitating the timely discharge of the defrosting water.

The positions of the two inclined end faces of the water tank 129 adjacent to the water discharge port may be respectively formed with upwardly protruding water blocking blocks, and each water blocking block extends from the rear wall of the refrigerating inner tank 120 to the front end surface of the water storage tank 129 to block the edge. The inclined end faces the defrosting water which is slid down, so that the water blocking block and the inclined end surface where the water blocking block is located constitute a water collecting area, so that the defrosting water overflows the water blocking block and flows into the drainage water after the defrosting water in the water collecting area is accumulated. In the mouth.

Since the lower end surface of the fan cover is formed with a vent opening penetrating the refrigerating duct 125, the air passage above and below the centrifugal fan 180 is unobstructed. When the refrigerator 100 is cooled, the portion of the return air that flows out from the return air port 170b of the duct cover 170 is blown toward the lower water pool 129 by the centrifugal fan 180, and then blows back toward the evaporator. While avoiding the risk that the outlet temperature is too low to be frozen, the wind speed around the water tank 129 is increased, and the evaporation of the defrosting water in the water accumulation area of the water tank 129 is accelerated, thereby increasing the humidity of the return air flow and increasing The humidity of the refrigerating compartment 121.

The water block can be directly formed on the upper surface of the inclined end surface of the water pool 129, that is, the water block protrudes upward from the upper surface of the inclined end surface of the water tank 129. The water block may also be recessed upward by the lower surface of the inclined end surface of the water tank 129, that is, the lower surface of the inclined end surface of the water tank 129 forms an upwardly recessed groove, thereby forming a block on the upper surface of the inclined end surface. Water block. The two water blocking blocks located at the two inclined end faces of the sump 129 may be oppositely disposed, that is, the two water blocking blocks are symmetrically disposed with respect to the drain opening.

The upper end surface of the water block is lower than the upper edge of the front end surface of the water tank 129, so that the water accumulated in the water pool does not pass over the front end surface of the water tank 129, and the water is prevented from infiltrating into the refrigerator compartment 121.

In one embodiment of the present embodiment, the above-mentioned card slot that engages with the card member at the bottom end of the air duct cover 170 may be formed on the front end surface of the water pool 129, that is, the front end surface of the water tank 129. The card slot is formed to cooperate with the card member, and the card member is engaged in the card slot, which increases the stability of the installation of the air duct cover plate 170.

In the refrigerator 100 of the present embodiment, the bottom of the refrigerating inner tank 120 is formed with a humidifying duct 126 that penetrates the refrigerating duct 125. The humidifying duct 126 is formed with a water storage area 128, and the bottom wall of the refrigerating chamber 121 corresponds to the water storage area 128. The position is formed with an opening, and the centrifugal fan 180 is located in the refrigerating duct 125 adjacent to the humidifying duct 126. Under the action of the centrifugal fan 180, part of the return air circulating between the refrigerating chamber 121 and the refrigerating duct 125 is guided to humidification. The air passage 126 is blown toward the water storage area 128 by the centrifugal fan 180, and the moisture of the water storage area 128 evaporates through the opening into the refrigerating chamber 121, thereby increasing the humidity of the refrigerating chamber 121, and humidifying the entire refrigerating chamber 121.

Further, in the refrigerator 100 of the present embodiment, the humidity sensor monitors the humidity of the refrigerating chamber 121, and the damper 127 disposed on the front side of the refrigerating duct 125 and located at the rear side of the humidifying duct 126 is monitored according to the humidity of the refrigerating chamber 121 monitored by the humidity sensor. The controlled opening or closing is performed to humidify the refrigerating chamber 121 flexibly according to the humidity of the refrigerating chamber 121, so that the humidity of the entire refrigerating chamber 121 can be adjusted.

Further, in the refrigerator 100 of the present embodiment, the bottom wall of the humidifying air duct 126 is located on the front side of the damper 127 and is located at a position on the rear side of the water storage area 128, and is formed with an upwardly projecting boss 126b on the upper side of the boss 126b. The end surface is higher than the upper end surface of the opening, thereby preventing the user from inadvertently pouring too much water into the water storage area 128 to cause the damper 127 to be immersed in water.

Further, in the refrigerator 100 of the present embodiment, the position of the vent hole 128a1 on the humidifying cover plate 128a is located between the refrigerating drawer 123 and the bottle holder 124, and the vertical height of the bottom wall of the refrigerating drawer 123 and the refrigerating chamber 121 is greater than or Equal to 20 mm, the horizontal distance between the refrigerating drawer 123 and the bottle holder 124 is greater than or equal to 20 mm, thereby ensuring the smooth flow of the humid air entering the refrigerating chamber 121 by the vent hole 128a1, facilitating the smoothness of the humidified air supply.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims (10)

A refrigerator comprising: a refrigerating inner tank defining a refrigerating chamber having an open front side; a refrigerating air duct extending from bottom to top along the rear wall of the refrigerating bladder in the refrigerating inner tank; a refrigerated evaporator configured to cool air in the refrigerated air duct; a bottom portion of the refrigerating inner tank is formed with a humidifying air passage that penetrates the refrigerating air passage and extends from a front side of the rear wall of the refrigerating inner tank; The bottom wall of the humidification air duct is formed with a water storage area that is recessed downward; An opening is formed at a position corresponding to a bottom wall of the refrigerating chamber corresponding to the water storage area to communicate the refrigerating chamber with the water storage area; The refrigerator further includes a centrifugal fan located in the refrigerating air duct adjacent to the humidifying air duct, the centrifugal fan configured to cause air inflow into the refrigerating air duct after cooling by the evaporator In the refrigerating compartment, and configured to cause a portion of the recirculation of the refrigerating compartment to be directed to the humidifying duct to facilitate introduction of humid air above the water storage zone through the opening by the partial return air In the refrigerating compartment, thereby increasing the humidity of the refrigerating compartment. The refrigerator according to claim 1, wherein The water storage area is located at a position close to a front side of the humidification air passage to facilitate watering by a user; The refrigerator further includes: a humidifying cover plate detachably covering an outer circumference of the opening, wherein the humidifying cover plate is formed with a plurality of venting holes, so that humid air above the water storage area enters the refrigerating chamber through the plurality of venting holes in. The refrigerator of claim 1, further comprising: a humidity sensor disposed in the refrigerating chamber and configured to monitor a humidity of the refrigerating chamber; a damper disposed on a front side of the refrigerating air duct and located at a rear side of the humidifying air duct, configured to open the humidifying air duct when the humidity of the refrigerating chamber is lower than a set value, to humidify the humidifying air duct The air duct passes through the refrigerating air duct. A refrigerator according to claim 3, wherein a bottom wall of the humidifying air duct is located at a front side of the damper and a position protruding at a rear side of the water storage area is formed with an upwardly protruding boss; a direction in which the humidifying air passage extends from a front side of the rear wall of the refrigerating inner tank is referred to as a longitudinal direction of the humidifying air passage; The boss extends from one side of the humidification air duct width direction to the other side; a position corresponding to the boss of the bottom wall of the refrigerating chamber protrudes upward to provide a relief space for the boss; An upper end surface of the boss is spaced apart from a bottom wall of the refrigerating chamber to facilitate airflow in the humidifying air passage, and an upper end surface of the boss is higher than an upper end surface of the opening to prevent the The water in the water storage area is too full to flow to the damper. The refrigerator according to claim 2, further comprising: a refrigerating compartment door body disposed on a front side of the refrigerating compartment, configured to open or close the refrigerating compartment; The refrigerator compartment is partitioned by a partition plate to form a first storage compartment located at a lower portion of the partitioning panel and a second storage compartment located at the partitioning upper portion; The refrigerator further includes: a refrigerated drawer disposed in the first storage compartment; a bottle holder disposed at a position corresponding to the refrigerating drawer inside the door of the refrigerating chamber; and The refrigerating drawer is spaced apart from a bottom wall of the refrigerating compartment, and the refrigerating drawer is spaced from the bottle holder to facilitate circulation of humid air entering the refrigerating compartment from the water storage zone. A refrigerator according to claim 5, wherein a region of the plurality of venting holes on the humidifying cover plate opposite to a spacing region between the refrigerating drawer and the bottle holder; The vertical height of the refrigerating drawer and the bottom wall of the refrigerating compartment is greater than or equal to 20 mm, and the horizontal distance of the refrigerating drawer from the bottle holder is greater than or equal to 20 mm to ensure smooth circulation of the humid air. The refrigerator of claim 1, further comprising: a duct cover disposed on a rear side of the refrigerating chamber, together with the rear wall of the refrigerating bladder, defining the refrigerating air duct; An upper portion and/or a side portion of the air duct cover is formed with an air outlet communicating with the refrigerating chamber; A lower portion of the duct cover is formed at a position corresponding to the air inlet of the centrifugal fan, and a return air port communicating with the refrigerating chamber is formed. The refrigerator according to claim 7, further comprising: a fan cover disposed on a wall surface of the air duct cover facing the rear wall of the refrigerating inner tank; The centrifugal fan is disposed on the fan cover and located in a space between the fan cover and the air duct cover; The upper end of the fan cover has a shutter protruding toward the air duct cover; The shutter is spaced apart from the air duct cover to facilitate airflow in the refrigerating air duct; The lower end surface of the fan cover is formed with a vent to facilitate communication of the refrigerating air passage with the humidifying air passage. The refrigerator according to claim 8, further comprising: a baffle plate is disposed above the fan cover, formed or disposed on a wall surface of the air duct cover plate facing the rear wall of the refrigerating inner tank, and extends toward the rear wall of the refrigerating inner tank, and is refrigerated The back wall of the liner is spaced apart; a portion of the surface of the baffle is directly above the shutter such that the baffle blocks a portion of the surface of the shutter to prevent defrosted water droplets in the refrigerating air passage from falling to the centrifugal fan on. A refrigerator according to claim 9, wherein The shielding plate is disposed obliquely, and an end surface of the shielding plate facing the air duct cover plate is higher than an end surface of the shielding plate facing the rear wall of the refrigerating inner tank; The baffle is disposed obliquely, and an end surface of the baffle on the air duct cover is higher than an end surface of the baffle facing the rear wall of the refrigerating inner tank.

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