WO2018205515A1

WO2018205515A1 - Refrigerator

Info

Publication number: WO2018205515A1
Application number: PCT/CN2017/109211
Authority: WO
Inventors: 张贤中; 史慧新; 潘舒伟; 葛鹤龄
Original assignee: 合肥华凌股份有限公司; 合肥美的电冰箱有限公司; 美的集团股份有限公司
Priority date: 2017-05-11
Filing date: 2017-11-03
Publication date: 2018-11-15

Abstract

Disclosed is a refrigerator, comprising a cabinet (1), wherein a refrigerating chamber (10) and an evaporator chamber (12) are defined in the cabinet (1). A sealed drawer (13) is provided in the refrigerating chamber (10); the sealed drawer (13) is provided with a communication hole (139) in communication with the interior thereof; and the communication hole (139) is in communication with the refrigerating chamber (10) via a humidity-adjusting air duct (15) or is in communication with an air return area (123) in the evaporator chamber (12) via the humidity-adjusting air duct (15). A fan or an air door (16) is provided in the humidity-adjusting air duct (15); the fan or the air door (16) is equipped with an on-off switch; and the refrigerator controls, based on the humidity fluctuation characteristics in the refrigerating chamber (10) or in the evaporator chamber (12), the switching on and off of the fan or the air door (16) so as to adjust the humidity in the sealed drawer.

Description

Refrigerator

cross reference

This application cites the Chinese Patent Application No. 2017103312899, entitled "Fridge", filed on May 11, 2017, and the Japanese Patent No. 2017103312901, which is also filed on May 11, 2017, entitled "a refrigerator" The Chinese patent application is hereby incorporated by reference in its entirety.

Technical field

The invention relates to the technical field of refrigeration equipment, and in particular to a refrigerator.

Background technique

The characteristics of the air-cooled refrigerator itself determine that the relative indoor temperature is moderately low, generally 30% to 50% or even lower. Most of the vegetables and fruits are stored in the cold storage room. Due to its growth characteristics, if the fruits and vegetables are stored in such a low humidity environment for a long time, water and nutrients will be quickly lost. In the refrigeration process of the air-cooled refrigerator, according to the optimal storage requirements of the food, the humidity of the fruit and vegetable box in the refrigerator is more than 70%, which is suitable for fruit and vegetable storage.

At present, air-cooled refrigerator products on the market generally only divide high-humidity areas and low-humidity areas, and the humidity cannot be precisely adjusted. The prior art solutions mainly increase the freezing air inlets on the sealed drawers, and the air outlets with water-blocking and gas-permeable membranes. The humidity in the drawer is controlled. Because of the need to add a water-blocking and gas-permeable membrane at the air outlet of the drawer, the cost is high, and the freezing of the wind directly causes the temperature of the drawer to be low.

Summary of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is to provide a refrigerator capable of adjusting the humidity of a sealed drawer to solve the problem that the humidity in the sealed drawer in the prior art is low and cannot be accurately adjusted.

(2) Technical plan

In order to solve the above technical problem, the present invention provides a refrigerator including a case body defining a refrigerating chamber and an evaporator chamber, the refrigerating chamber being provided with a sealed drawer, the seal The drawer is provided with a communication hole communicating with the inside of the sealed drawer, the communication hole is communicated with the refrigerating chamber through a humidity control air passage, or communicates with a return air area of the evaporator chamber through the humidity control air passage A fan or a damper is disposed in the humidity control air duct, and the fan or the damper is provided with a start/stop switch.

Wherein, a refrigerating air passage is defined between a rear wall of the refrigerating chamber and a rear wall of the box, and the humidity regulating air duct is disposed in the refrigerating air duct.

The rear wall of the refrigerating chamber is provided with a refrigerating tuyere and a air exchange port communicating with the refrigerating air duct, and the air exchange opening is disposed adjacent to the refrigerating tuyere and connected to the humidity regulating air duct.

Wherein the sealed drawer comprises a drawer body with an open upper end and an upper cover provided on the drawer body, the upper cover is fixedly connected with an inner wall of the refrigerating chamber, and the drawer body and the upper cover are slid The mechanism is connected, and when the drawer body is slid to a preset position, the upper cover is sealingly connected to the opening of the drawer body.

Wherein the upper cover comprises a cover plate and a skirt extending downwardly along both sides and a rear end of the cover plate, the inner surface of the skirt plate being provided with a sealing plate parallel to the cover plate, the drawer The upper surface of the body is provided with a flange provided outwardly, and a lower surface of the flange is attached to the upper surface of the sealing plate for achieving a sealed connection between the upper cover and the drawer body.

Wherein, the sliding mechanism comprises a guiding plate extending downward along a skirt provided on two sides of the cover plate, a sliding slot provided on the guiding plate, and two sides of the drawer body and The sliding rail of the chute cooperates.

Wherein, the communication hole is provided on the skirt on the rear side of the cover.

Wherein, when a fan is disposed in the humidity control air duct, the humidity control air duct includes at least one U-shaped tube.

The damper or the fan is disposed at one end of the humidity control air duct connected to the communication hole.

The control mechanism further includes a humidity sensor connected to the control mechanism, and the control mechanism is configured to control opening and closing of the start/stop switch according to the detection result of the humidity sensor.

(3) Beneficial effects

The above technical solution of the present invention has the following advantages: the present invention provides a refrigerator including a box body defining a refrigerating chamber and an evaporator chamber, wherein the refrigerating chamber is provided with a sealed drawer on the sealed drawer Providing a communication hole communicating with the inside of the sealed drawer, the communication hole being connected to the refrigerating chamber through a humidity control duct, or passing through the humidity control duct and the evaporator chamber The return air zone is connected to the air conditioning duct, and the fan or the damper is equipped with a start/stop switch. When the food placed in the sealed drawer requires high humidity, close the damper or fan, and the sealed drawer is isolated from the refrigerating compartment or the evaporator chamber because the temperature of the food is higher than the temperature inside the sealed drawer, and the food is in the sealed drawer. During the cooling process, the relative humidity in the drawer is raised to achieve a high humidity state in the sealed drawer; when the food placed in the sealed drawer requires a low humidity state, the fan or damper is opened under the condition that the refrigerating compartment requests cooling. The air in the sealed drawer is exchanged with the air in the refrigerating chamber or the evaporator chamber. The absolute humidity of the air in the refrigerating chamber or the evaporator chamber is low, and the air humidity in the sealed drawer is lowered during the air exchange process. . The refrigerator can adjust the humidity of the air in the sealed drawer according to the needs of the refrigerated food, so that the refrigerated food is kept at a relatively suitable humidity, and the humidity in the sealed drawer is precisely adjusted.

DRAWINGS

1 is a schematic structural view of a refrigerator according to Embodiment 1 of the present invention;

2 is a schematic structural view of a refrigerator provided in Embodiment 2 of the present invention;

3 is a schematic structural view of a refrigerator interior provided by Embodiment 1 or 2 of the present invention;

4 is a schematic structural view of an upper cover according to Embodiment 1 or 2 of the present invention;

Figure 5 is a schematic structural view of a drawer body according to Embodiment 1 or 2 of the present invention;

6 is a schematic structural view of an upper cover provided by Embodiment 1 or 2 of the present invention (excluding a glass plate);

Figure 7 is a view showing the arrangement position of the communication hole on the sealed drawer provided by the first or second embodiment of the present invention;

FIG. 8 is a schematic structural view of a humidity control air passage according to Embodiment 3 of the present invention.

In the figure: 1: box; 10: cold room; 11: freezer; 12: evaporator chamber; 13: sealed drawer; 14: refrigerated air duct; 15: humidity air duct; 16: damper; 101: refrigerated Tuyere; 102: air exchange port; 121: fan assembly; 122: evaporator; 123: return air area; 131: cover plate; 132: skirt; 133: chute; 134: guide plate; 135: drawer body; Slide rail; 137: flange; 138: sealing plate; 139: communication hole.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention more clearly, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. It is apparent that the described embodiments are part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

As shown in FIG. 1 and FIG. 3-7, a refrigerator according to an embodiment of the present invention includes a cabinet 1 defined therein, a refrigerator compartment 10 is defined therein, and a sealed drawer 13 is disposed in the refrigerator compartment 10, and the sealed drawer 13 is disposed. There is a communication hole 139 communicating with the inside of the sealed drawer 13, and the communication hole 139 is connected to the refrigerating chamber 10 through the humidity control duct 15, and a fan or a damper is disposed in the humidity control duct 15, which is in the humidity control duct 15 in this embodiment. The damper 16 is provided, and the damper 16 is provided with a start/stop switch. When the food placed in the sealed drawer 13 requires a high humidity state, the damper 16 is closed, and the sealed drawer 13 is isolated from the refrigerating compartment 10, because the temperature of the food is higher than the temperature inside the sealed drawer 13, and the food is cooled in the sealed drawer 13. During the process, the relative humidity in the drawer is raised to achieve a high humidity state in the sealed drawer 13; when the food placed in the sealed drawer 13 requires a low humidity state, the damper is opened under the condition that the refrigerating compartment 10 requests cooling. 16. The air in the sealed drawer 13 is exchanged with the air in the refrigerating compartment 10. Since the absolute humidity of the air in the refrigerating compartment 10 is low, the humidity of the air in the sealed drawer 13 is lowered during the air exchange. The refrigerator is capable of adjusting the humidity of the air in the sealed drawer 13 according to the needs of the refrigerated food, so that the refrigerated food is maintained at a relatively suitable humidity, and the humidity in the sealed drawer 13 is accurately adjusted.

Further, a refrigerating air duct 14 is defined between the rear wall of the refrigerating compartment 10 and the rear wall of the cabinet 1 , and the humidity conditioning duct 15 is disposed in the refrigerating duct 14 . Below the refrigerating chamber 10 is defined a freezing chamber 11 and an evaporator chamber 12, the evaporator chamber 12 is in communication with the refrigerating duct 14, an evaporator and a fan assembly are provided in the evaporator chamber 12, and the fan assembly is an evaporator chamber The cold air generated in the 12 is transported into the refrigerating air duct 14, and the rear wall of the refrigerating chamber 10 is provided with a refrigerating tuyere 101 and a air exchange port 102 communicating with the refrigerating air duct 14, and the cold air enters the refrigerating chamber 10 through the refrigerating tuyere 101, The food in the refrigerating compartment 10 is stored at a low temperature, and the air inlet 102 is disposed near the refrigerating tuyere 101 and connected to the humidity control duct 15. The purpose of the air inlet 102 is close to the refrigerating tuyere 101. When the damper 16 is opened, the refrigerating tuyere 101 is ventilated. A negative pressure is formed at the air vent 102, forcing the air in the sealed drawer 13 to flow into the refrigerating chamber 10, reducing the humidity of the air inside the sealed drawer 13. The humidity control duct 15 is disposed in the refrigerating air duct 14, and one end of the humidity control duct 15 is connected to the communication hole 139, and the other end is connected to the air exchange port 102. When the damper 16 is opened, the sealed drawer 13 and the refrigerating chamber 10 are aired. Exchange, To achieve the effect of adjusting humidity.

Further, the sealed drawer 13 includes a drawer body 135 whose upper end is open and an upper cover provided on the drawer body 135. The upper cover is fixedly connected to the inner wall of the refrigerating compartment 10, and the drawer body 135 and the upper cover are connected by a sliding mechanism, and when the drawer When the body 135 is slid to the preset position, the upper cover is sealingly connected with the open position of the drawer body 135. At this time, the sealed drawer 13 is completely isolated from the refrigerating chamber 10, and no air exchange is performed, thereby achieving perfect preservation of the food.

Further, the upper cover includes a cover plate 131 and a skirt 132 extending downwardly along both sides and the rear end of the cover plate 131. The cover plate 131 is composed of a frame and a glass plate, and the inner surface of the skirt plate 132 is provided with a cover The upper surface of the drawer body 135 is provided with a flange 137 disposed outwardly, and the lower surface of the flange 137 is adhered to the upper surface of the sealing plate 138 for sealing the upper cover and the drawer body 135. connection. When the drawer is pushed to the preset position, the front end surface of the sealing plate 138 is fitted to the front end surface of the drawer body 135, the lower surface of the flange 137 is completely fitted with the upper surface of the sealing plate 138, and the upper cover is used for the drawer body 135. The upper end is completely closed.

Further, the sliding mechanism includes a guiding plate 134 extending downward along the skirt plate 132 disposed on both sides of the cover plate 131, a sliding slot 133 disposed on the guiding plate 134, and two sides disposed on the drawer body 135 and sliding The slide rail 136 is engaged with the groove 133.

Further, the communication hole 139 is disposed on the skirt 132 on the rear side of the cover plate 131. When the upper cover is sealingly connected to the drawer body 135, the gas is introduced into the drawer body 135 through the communication hole 139 provided in the skirt 132. The effect of adjusting the humidity of the air inside the sealed drawer 13 is achieved. In this way, the structure has an adjustable communication area with respect to the sealed drawer and the refrigerating compartment, and the low-humidity environment of the sealed drawer has less influence on the refrigerating compartment and does not require manual adjustment.

Further, the damper 16 is provided at one end of the humidity control duct 15 connected to the communication hole 139. When the inside of the drawer needs a dry environment, the damper 16 is opened under the condition that the cold air is introduced into the refrigerating compartment 10. Under the action of the wind, the sealed drawer 13 communicates with the refrigerating compartment 10 through the humidity control duct 15, and the damper 16 forces the drawer The air in the air 13 is exchanged with the air in the refrigerating compartment 10. Since the refrigerating compartment 10 is low-humidity air, the moisture in the sealed drawer 13 is gradually lowered, and the effect of drying the inside of the sealed drawer 13 is achieved.

Further, the control mechanism further includes a humidity sensor (not shown) connected to the control mechanism, and the control mechanism is connected with the start-stop switch for controlling the damper 16 according to the humidity value detected by the humidity sensor. Switch. The control mechanism controls the opening of the damper 16 There are two parts, when the humidity value detected by the humidity sensor is greater than the humidity value required for food storage, and when the compressor works for a preset time (ie, when there is refrigeration requirement in the refrigerating chamber 10), the control mechanism controls the damper 16 The air in the sealed drawer 13 is exchanged with the air in the refrigerating chamber 10 to reduce the humidity of the air in the sealed drawer 13 when the humidity value detected by the humidity sensor is less than the humidity value required for food storage, and the compressor is turned off. The control mechanism controls the damper 16 to close, increasing the humidity of the air in the sealed drawer 13. The control mechanism realizes the effect of adjusting the humidity in the sealed drawer 13 by controlling the opening and closing of the damper 16, thereby achieving more precise control of the humidity.

Embodiment 2

As shown in FIG. 2-7, an embodiment of the present invention further provides a refrigerator including a cabinet 1 defining a refrigerating chamber 10, a freezing chamber 11 and an evaporator chamber 12, and the evaporator chamber 12 is frozen. The rear wall of the chamber 11 is enclosed with the rear wall of the casing 1, and the evaporator chamber 12 is in communication with the refrigerating duct 14, the evaporator chamber 12 is provided with an evaporator 122 and a fan assembly 121, and the fan assembly 121 is disposed at the evaporation Above the evaporator 122, cold air is supplied to the inside of the refrigerating duct 14, and below the evaporator 122 is a return air zone 123 of the evaporator chamber 12. A sealed drawer 13 is disposed in the refrigerating compartment 10, and the sealed drawer 13 is provided with a communication hole 139 communicating with the inside of the sealed drawer 13. The communication hole 139 communicates with the return air zone 123 in the evaporator chamber 12 through the humidity control duct 15 A damper 16 is disposed in the wet air duct 15, and the damper 16 is provided with a start/stop switch. When the food placed in the sealed drawer 13 requires a high humidity state, the damper 16 is closed, and the sealed drawer 13 is in isolation from the refrigerating compartment 10 and the freezing compartment 11, because the temperature of the food is higher than the temperature inside the sealed drawer 13, and the food is During the cooling process in the sealed drawer 13, the relative humidity in the drawer is raised to achieve a high humidity state in the sealed drawer 13; when the food placed in the sealed drawer 13 requires a low humidity state, the damper 16 is opened, and the drawer is sealed. The air in 13 is exchanged with the air in the return air zone 123 in the evaporator chamber 12, because the absolute humidity of the air in the return air zone 123 of the evaporator chamber 12 is low, and is reduced during the air exchange process. The humidity of the air inside the sealed drawer 13 is sealed. The refrigerator can adjust the humidity of the air in the sealed drawer 13 according to the needs of the refrigerated food, keep the refrigerated food at a relatively suitable humidity, realize the precise adjustment of the humidity in the sealed drawer 13, and seal the drawer during the humidity adjustment process. 13 is always in isolation from the refrigerating compartment 10, does not affect the refrigerating compartment 10, realizes the partition storage of food, and improves the quality of food preservation.

Further, a communication hole 139 is provided in the rear side wall of the sealed drawer 13. The purpose of this arrangement reduces the arrangement length of the ventilation and humidity control duct 15.

Further, the communication hole 139 is disposed on the skirt 132 on the rear side of the cover plate 131. When the upper cover is sealingly connected to the drawer body 135, the gas is introduced into the drawer body 135 through the communication hole 139 provided in the skirt 132. The effect of adjusting the humidity of the air inside the sealed drawer 13 is achieved.

Further, the humidity control duct 15 is disposed in the bubble layer on the rear side of the freezer compartment 11, which saves the space occupied by the humidity control duct 15, and the structure inside the cabinet 1 is more compact.

Further, the damper 16 is disposed at one end of the humidity control duct 15 connected to the communication hole 139. When the damper 16 is opened, the sealed drawer 13 passes through the humidity control duct 15 and the return air in the evaporator chamber 12 under the action of the wind force. The zone 123 is connected, and the damper 16 forcibly exchanges the air in the drawer with the air in the return air zone 123 of the evaporator chamber 12, and the evaporator chamber 12 is low-humidity air, thereby achieving the function of dehumidifying the sealed drawer 13. Reach the required low humidity condition.

Further, a control mechanism is further included, and the sealed drawer 13 is provided with a humidity sensor connected to the control mechanism, and the control mechanism is connected with the start-stop switch for controlling the switch of the damper 16 according to the humidity value detected by the humidity sensor. When the humidity value detected by the humidity sensor is greater than the humidity value required for food storage, the control mechanism controls the damper 16 to open, and the air in the sealed drawer 13 is exchanged with the air in the return air zone 123 of the evaporator chamber 12 to lower the seal. The air inside the drawer 13 is wet When the humidity value detected by the humidity sensor is less than the humidity value required for food storage, the control mechanism controls the damper 16 to close, thereby increasing the humidity of the air in the sealed drawer 13. The control mechanism realizes the effect of adjusting the humidity in the sealed drawer 13 by controlling the opening and closing of the damper 16, thereby achieving more precise control of the humidity.

Embodiment 3

As shown in FIG. 8 , this embodiment is similar to the first or second embodiment, and the same parts are not described again. The difference between the two is that the fan is disposed in the humidity control duct 15 of the embodiment, and the position of the fan is set and implemented. The function is the same as that of the first or second embodiment. When the fan is disposed in the humidity control duct 15, the humidity control duct 15 includes at least one U-shaped tube. When the fan is closed, the air inside the sealed drawer 13 is controlled by the humidity. The resistance in the passage 15 is large, does not exchange air with the air in the refrigerating compartment 10, or does not exchange air with the return air zone 123 of the evaporator chamber 12.

In the manner of adjusting the humidity of the sealed drawer as described above, the low-humidity environment of the sealed drawer has less influence on the refrigerating compartment, and the manual adjustment is not required, as compared with the manner in which the communication structure is provided on the cover plate and the dial pad is adjusted to adjust the communication area. , the degree of automation is higher.

In summary, the refrigerator provided by the above embodiment of the present invention places the sealed drawer in the refrigerating chamber, and the communication drawer is provided with a communication hole, and the communication hole passes through the humidity regulating air passage and the refrigerating chamber disposed inside the refrigerating air passage or evaporates. The return air zone in the chamber is connected, and a fan or a damper is arranged in the humidity control air duct to control the opening and closing of the fan or the damper according to the humidity fluctuation characteristic of the refrigerator refrigerator to adjust the humidity in the sealed drawer. The refrigerator can adjust the humidity of the air in the sealed drawer according to the needs of the refrigerated food, keep the refrigerated food at a relatively suitable humidity, realize the precise adjustment of the humidity in the sealed drawer, and seal the drawer and the refrigerating chamber during the humidity adjustment process. It is always in isolation, does not affect the cold storage room, realizes the partition preservation of food, and improves the quality of food preservation.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A refrigerator, comprising: a box body defining a refrigerating chamber and an evaporator chamber, wherein the refrigerating chamber is provided with a sealed drawer, and the sealed drawer is provided with communication with the inside of the sealed drawer hole;

The communication hole communicates with the refrigerating chamber through a humidity control air passage, or communicates with a return air region of the evaporator chamber through the humidity control air passage;

A fan or a damper is disposed in the humidity control air duct, and the fan or the damper is equipped with a start/stop switch.
The refrigerator according to claim 1, wherein a refrigerating air duct is defined between a rear wall of the refrigerating compartment and a rear wall of the cabinet, and the humidity conditioning duct is disposed in the refrigerating duct.
The refrigerator according to claim 2, wherein a rear wall of the refrigerating compartment is provided with a refrigerating tuyere and a venting opening communicating with the refrigerating air duct, and the air venting opening is disposed adjacent to the refrigerating tuyere and Describe the wet air duct connection.
The refrigerator according to claim 2, wherein the sealed drawer comprises a drawer body having an open upper end and an upper cover provided on the drawer body, the upper cover being fixedly connected to an inner wall of the refrigerating chamber, The drawer body and the upper cover are connected by a sliding mechanism, and when the drawer body is slid to a preset position, the upper cover is sealingly connected with the opening of the drawer body.
The refrigerator according to claim 3, wherein the upper cover comprises a cover plate and a skirt extending downwardly along both sides and a rear end of the cover plate, the inner surface of the skirt plate being provided with the same a sealing plate parallel to the cover plate, the upper surface of the drawer body is provided with a flange provided outwardly, and a lower surface of the flange is attached to the upper surface of the sealing plate for realizing the upper cover and the The sealed connection of the drawer body.
The refrigerator according to claim 5, wherein the sliding mechanism comprises a guide plate extending downward along a skirt provided on both sides of the cover, a sliding groove provided on the guide plate, and A slide rail disposed on both sides of the drawer body and engaging with the sliding slot.
The refrigerator according to claim 5, wherein said communication hole is provided in a skirt on a rear side of said cover.
The refrigerator according to any one of claims 1 to 7, characterized in that, when a fan is disposed in the humidity control duct, the humidity control duct comprises at least one U-shaped tube.
The refrigerator according to any one of claims 1 to 7, wherein the damper or fan is provided at one end of the humidity control duct connected to the communication hole.
The refrigerator according to any one of claims 1 to 7, further comprising a control mechanism, wherein the sealed drawer is provided with a humidity sensor connected to the control mechanism, and the control mechanism is configured to be based on the humidity The detection result of the sensor controls the opening and closing of the start-stop switch.