CN216245065U - A kind of refrigerator - Google Patents

Abstract

The utility model discloses a refrigerator, which comprises a refrigerator body, a thawing device, a fan and a first air door, wherein the refrigerator body is provided with a cavity, the refrigerator body is provided with a main air duct for installing an evaporator, a thawing air port for communicating the main air duct with the cavity, a cold air port and a return air port, the cold air port is used for introducing cold air into the cavity, and the return air port is used for supplying air to return to the main air duct; the thawing device is arranged in the chamber and is provided with an accommodating space for storing frozen products, and a thawing air port faces the accommodating space; the fan is used for blowing air in the main air duct to the accommodating space through the unfreezing air port and blowing the air to the chamber through the cold air port; the first air door is used for opening or closing the defrosting air opening. The refrigerator provided by the utility model can accelerate the thawing rate and has a good thawing effect.

Description

A kind of refrigerator

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a refrigerator.

Background

In daily life, in order to prolong the storage time of foods such as meat, fish and shellfish, such foods are usually stored in a frozen environment, and when used for cooking and eating, the frozen foods need to be thawed. In the related art, the frozen food is naturally thawed, but the problems of long thawing time and low thawing efficiency exist, or the frozen food is immersed in water or sprinkled with water, and although the thawing efficiency is improved compared with the natural thawing, the daily requirement cannot be met, the water content of the food is increased, the thawing quality of the food is influenced, and the thawing effect is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the refrigerator provided by the utility model can accelerate the thawing rate and has a good thawing effect.

The refrigerator provided by the embodiment of the utility model comprises a refrigerator body, a refrigerator body and a refrigerator door, wherein the refrigerator body is provided with a cavity, a main air duct for installing an evaporator, a unfreezing air inlet, a cold air inlet and a return air inlet which are communicated with the main air duct and the cavity, the cold air inlet is used for introducing cold air into the cavity, and the return air inlet is used for supplying air to return to the main air duct; the unfreezing device is arranged in the chamber and is provided with an accommodating space for storing frozen products, and the unfreezing air port faces the accommodating space; the fan is used for blowing the air in the main air duct to the accommodating space through the unfreezing air port and blowing the air to the cavity through the cold air port; and the first air door is used for opening or closing the unfreezing air port.

The refrigerator provided by the embodiment of the utility model at least has the following beneficial effects: when the frozen products do not need to be thawed, the first air door closes the thawing air port, air in the main air duct is blown to the cavity through the fan and flows back through the air return port to form circulation, refrigeration is realized, and frozen products are prevented from being air-dried due to air outlet of the thawing air port; when needs unfreeze, unfreezing wind gap is opened to first wind gap, blows the air in the main air duct to thawing apparatus's accommodation space through the fan to form the circulation through the return air inlet backward flow, make wind blow to the frozen product of placing in thawing apparatus, increase the wind flow on frozen product surface, the thawing that cooperates thawing apparatus self, thereby improve the speed of unfreezing, improve the effect of unfreezing.

According to some embodiments of the present invention, the defrosting port is communicated with the main duct through a first duct, and the first damper is disposed in the first duct.

According to some embodiments of the utility model, one end of the first air duct connected to the defrosting port is provided with an air guide portion for guiding air to the defrosting port.

According to some embodiments of the utility model, the box body is provided with at least two of the cold air vents, and at least two of the cold air vents are arranged on both sides of the defrosting vents.

According to some embodiments of the utility model, the box body is further provided with a second damper for opening or closing the cold air port.

According to some embodiments of the utility model, the cold air port is communicated with the main air duct through a second air duct, and the second air door is disposed in the second air duct.

According to some embodiments of the present invention, the refrigerator further includes a controller, the first damper and the second damper are both electrically operated dampers and electrically connected to the controller, and the controller is configured to control opening or closing of the first damper and the second damper.

According to some embodiments of the utility model, an inner diameter of the main duct increases gradually toward an end of the defrosting port.

According to some embodiments of the utility model, the defrosting tuyere is directed toward a central position of the accommodating space.

According to some embodiments of the utility model, the box is provided with a plurality of louvers located at the return air opening, the louvers extending towards the bottom of the box.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic view of a partial structure of a case according to an embodiment of the present invention;

FIG. 2 is a partially exploded view of the housing of the embodiment of the present invention;

FIG. 3 is a schematic view of a refrigerator according to an embodiment of the present invention;

FIG. 4 is a schematic connection diagram of the main duct, the first duct, and the second duct according to an embodiment of the present invention;

fig. 5 is a diagram of the connection of a tray to a glass shelf in some embodiments of the utility model.

Reference numerals:

a case 100; a glass shelf 110; a bracket 111; a buckle 112; a back plate 120; a cover plate 130; a main air duct 140; a first air duct 150; a first damper 151; a wind guide portion 152; a second air duct 160; a second damper 161; a thawing wind gap 170; an air return opening 180; louvers 181; a cold air port 190;

a tray 200; an accommodating space 210; a connecting rod 220;

a fan 300;

an evaporator 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly defined, terms such as set, mounted, connected, assembled, matched and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of the technical solutions.

The common thawing mode is natural thawing, but the thawing time is long, the frozen product has a continuous dripping phenomenon, and the freshness of the frozen product is easily influenced after the frozen product is placed for a long time, particularly for meat products; some are thawed by immersing the frozen product in water or spraying water on the surface of the frozen product, but this causes an increase in the moisture content of the frozen product, particularly in the case of meat products, which seriously affects the texture of the meat products, and this method is not suitable for thawing frozen products that cannot come into contact with water; in addition, some of the products are heated and thawed by an electronic stove such as a microwave oven, an infrared heater and the like, and although the thawing speed is high, the frozen products are easy to be excessively thawed, the freshness of the frozen products is influenced, and the subsequent treatment is inconvenient. Therefore, the thawing modes are difficult to meet daily requirements, and the thawing effect is poor.

To solve the above problems, referring to fig. 1 to 5, an embodiment of the present invention provides a refrigerator, which may be a single-door refrigerator, a split double-door wall-cabinet refrigerator, a three-door refrigerator, etc., and includes a cabinet 100, a thawing apparatus (not shown), a blower 300, a first damper 151, and an evaporator 400.

Referring to fig. 1 to 3, it can be understood that the cabinet 100 has a chamber (not shown) with a forward opening, and a door (not shown) for closing the chamber is connected to a front end of the cabinet 100, and in general, the chamber may be a refrigerating chamber, and a temperature in the refrigerating chamber is set to about 4 ℃, and the refrigerating chamber is used for keeping food fresh. The thawing means may be a tray 200 or a drawer, etc. and may be used for storing food. For example, the thawing device is a drawer (not shown), the inner space of the drawer is the accommodating space 210, the drawer is located in the refrigerating chamber, and the drawer is slidably installed in the box body 100 in the front-rear direction, that is, the drawer is installed in the box body 100 in a pull-out type installation manner, so that the drawer can be pulled out forwards to store food. Aluminum plate can be installed to the diapire of drawer, and aluminum plate's heat conductivility is good, can accelerate the speed of unfreezing.

Of course, the thawing device may also be a tray 200, the tray 200 has a containing space 210 for storing food, and the tray 200 is made of aluminum, which has good heat conductivity so as to accelerate the thawing rate.

The present embodiment will be further described with reference to the tray 200 as a container for storing food, and the embodiment in which food is stored in a drawer may refer to the embodiment in which the tray 200 is used for storing food.

Referring to fig. 3, it can be understood that a plurality of glass shelves 110 are installed in the chamber of the cabinet 100, and the plurality of glass shelves 110 are spaced from bottom to top to improve the space utilization of the chamber. The lower side of the glass shelf 110 is connected with two brackets 111, the two brackets 111 are arranged on the left side and the right side of the glass shelf 110, and two ends of the tray 200 are connected to the lower ends of the two brackets 111, for example, two ends of the tray 200 are in hanging fit with the brackets 111, so that the tray 200 is convenient to install, and a containing space 210 is formed between the tray 200 and the glass shelf 110.

Referring to fig. 5, it can be understood that the tray 200 can also be matched with the glass shelf 110 in a folding manner along a vertical direction, specifically, the left side and the right side of the tray 200 are both connected with the connecting rods 220 arranged in parallel, the lower ends of the connecting rods 220 are rotatably connected to the tray 200, the connecting rods 220 are arranged along a horizontal direction relative to a first central axis of the tray 200, two sides of the tray 200 are respectively provided with two connecting rods 220 arranged in parallel, the two connecting rods 220 on the same side are respectively connected to the front end and the rear end of the tray 200, the four connecting rods 220 have the same length, the upper ends of the four connecting rods 220 are both rotatably connected to the glass shelf 110, a second central axis of the connecting rods 220 rotating relative to the glass shelf 110 is parallel to the first central axis, therefore, an accommodating space 210 is formed between the tray 200 and the glass shelf 110, and two buckles 112 respectively snap-fitted with the two connecting rods 220 at the front end are arranged at the front end of the bottom of the glass shelf 110. Under tray 200 user state, tray 200 normally hangs in the below of glass shelf 110, link 220 arranges along vertical direction, tray 200 can be used to deposit the article such as edible material and unfreeze, when tray 200 need not deposit the article such as edible material, can pull forward or push tray 200 backward and upwards promote tray 200, make the relative glass shelf 110 of link 220 rotate, link 220 rotates simultaneously relative tray 200, link 220 until the front end corresponds joint in buckle 112, can fold the relative glass shelf 110 of tray 200, in order to vacate the below space of glass shelf 110, conveniently place the great article of volume in the below of glass shelf 110, and is convenient for use.

Referring to fig. 2 and 4, it can be understood that the back plate 120 of the cabinet 100 is provided with a main air duct 140, the main air duct 140 is concavely disposed along the thickness direction of the back plate 120, and the main air duct 140 extends from bottom to top, the cabinet 100 is fixedly connected with a cover plate 130 positioned at the rear side of the back plate 120, and the cover plate 130 covers the main air duct 140. The back plate 120 is further provided with a thawing air port 170, an air return port 180 and a cold air port 190, the thawing air port 170 and the cold air port 190 are communicated with the upper end of the main air duct 140, the air return port 180 is communicated with the lower end of the main air duct 140, namely the air return port 180 is positioned below the cold air port 190 and the thawing air port 170, and meanwhile, the thawing air port 170, the air return port 180 and the cold air port 190 are communicated with the chamber. The evaporator 400 and the fan 300 are both installed in the main air duct 140, the evaporator 400 is used for refrigerating, in the normal operation process of the refrigerator, the fan 300 is used for enabling cold air in the main air duct 140 to enter the cavity through the unfreezing air port 170 and the cold air port 190, and air in the cavity flows back into the main air duct 140 through the air return port 180, so that the cavity and the evaporator 400 in the main air duct 140 exchange heat in a convection mode, the cavity is cooled, and the fresh-keeping function is met.

Referring to fig. 3, it can be understood that the thawing tuyere 170 faces the accommodation space 210 of the tray 200. When the frozen product is placed on the tray 200, the air blown from the thawing air port 170 is directly blown to the frozen product, so that the air flow on the surface of the frozen product is increased to promote thawing.

Referring to fig. 2 and 4, it can be understood that the back plate 120 is further provided with a first damper 151, the first damper 151 is used for opening or closing the defrosting air port 170, the first damper 151 may be an electric damper, the first damper 151 is electrically connected to a controller (not shown in the figure) of the refrigerator, the controller may be a control box or a control circuit board, and the like, and the controller is a common component in the art and is not described herein again. The opening of the thawing air port 170 or the closing of the thawing air port 170 is achieved by controlling the first damper 151, so that the wind can be controlled to be blown toward the accommodating space 210 of the tray 200. When the frozen products in the accommodating space 210 need to be thawed, the first air door 151 is controlled to open the thawing air port 170 so as to increase the air flow on the surface of the frozen products, which is beneficial to thawing. When the frozen products in the accommodating space 210 do not need to be thawed, the first air door 151 can be controlled to close the thawing air port 170, so that the frozen products are prevented from being thawed unnecessarily; or when there is no frozen product in the accommodating space 210, the first damper 151 may be controlled to close the thawing wind gap 170. Therefore, the opening and closing of the defrosting tuyere 170 can be controlled according to the requirement, and the control mode is simple.

When the thawing is not needed, the first air door 151 closes the thawing air port 170, air in the main air duct 140 is blown to the cavity through the fan 300 and flows back through the return air port 180 to form circulation, so that refrigeration is realized, and frozen products are prevented from being air-dried due to air outlet of the thawing air port 170; when needs unfreeze, unfreeze wind gap 170 is opened to first wind gap 151, blows the air in main wind channel 140 to the accommodation space 210 of tray 200 through fan 300 to form the circulation through return air inlet 180 backward flow, make wind blow to the frozen product of placing on tray 200, increase the wind flow on frozen product surface, carry out the effect of unfreezing through aluminum plate in the cooperation tray 200, thereby improve the speed of unfreezing, improve the effect of unfreezing. Meanwhile, because the fan 300 is installed in the original main air duct 140 for installing the evaporator 400 of the refrigerator, the fan 300 and the additional air duct do not need to be installed in the cavity of the refrigerator body 100, the space of the cavity is saved, the space utilization rate of the cavity is effectively improved, and compared with the case that the fan 300 and the additional air duct are installed in the cavity, the same unfreezing effect can be achieved in the embodiment, the integral structure is simpler, and the structure is more compact.

It is understood that when the controller controls the first damper 151 to be opened, the controller simultaneously controls the evaporator 400 to stop operating so that the temperature of the wind blown out from the defrosting port 170 is greater than zero degrees centigrade, and the temperature is gradually increased so that defrosting can be accelerated, further improving the defrosting effect of the frozen products.

Referring to fig. 2 and 4, it can be understood that the back plate 120 is further provided with a first air duct 150 and two second air ducts 160, the first air duct 150 and the second air duct 160 are arranged to extend in a vertical direction, the two second air ducts 160 are respectively located at the left side and the right side of the first air duct 150, the lower end of the first air duct 150 is connected with the main air duct 140, and the upper end of the first air duct 150 is connected with the defrosting air port 170, so that the defrosting air port 170 is communicated with the main air duct 140. The first damper 151 is installed in the first duct 150. The lower end of the second air duct 160 is connected to the main air duct 140, and the upper end of the second air duct 160 is connected to the cold air inlet 190, so that the cold air inlet 190 is communicated with the main air duct 140. Generally, the back plate 120 is provided with two cold air vents 190, and the two cold air vents 190 are respectively connected with the two second air ducts 160. The second air doors 161 are installed on the two second air ducts 160, the structure of the second air doors 161 can refer to the structure of the first air doors 151, and is not described herein any more, the two second air doors 161 are also electric air doors, and the two second air doors 161 are electrically connected to the controller. When the controller controls the first damper 151 to open the thawing air port 170, the controller simultaneously controls the second damper 161 to close the cold air port 190, so that the air of the main air duct 140 is intensively blown out from the thawing air port 170, thereby increasing the air output of the thawing air port 170, increasing the air flow on the surface of the frozen product, further accelerating the thawing rate and improving the thawing effect.

It can be understood that the controller is also electrically connected with the fan 300, the rotating speed of the fan 300 is controlled through the controller, the opening range of the first air door 151 is controlled, the air quantity blown onto the frozen product is 15-30 m3/h, the air speed is 2-6 m/s, the utilization rate of the air is improved to the maximum degree, and therefore the unfreezing rate is accelerated. The controller may further be provided with a timing control module (not shown in the figure) for controlling the opening time of the first damper 151, the closing time of the second damper 161, and the stop time of the evaporator 400, i.e., controlling the thawing time, and the controller is further electrically connected with a gear switch (not shown in the figure) for presetting the thawing time. The user can predetermine the thawing time through gear switch according to the weight of freezing article to realize effective thawing, the operation of being convenient for. Specifically, according to the difference of time required for frozen products with different weights to achieve the same thawing effect, the gear switch is provided with four gears, the weight of the frozen products corresponding to the first gear is 100-300 g, and the thawing time is 15 minutes; the second gear corresponds to the weight of the frozen product and is 300-500 g, and the unfreezing time is 30 minutes; the third gear corresponds to 500-800 g of frozen product weight, and the unfreezing time is 45 minutes; the weight of the frozen product corresponding to the fourth gear is 800-1000 g, and the unfreezing time is 60 minutes; therefore, the user can select the corresponding gear switch according to the weight of the frozen product so as to preset the thawing time.

When unfreezing is carried out, the unfreezing time is preset, the controller controls the fan 300 to be started, the first air door 151 to be opened, the second air door 161 to be closed and the evaporator 400 to stop running, so that air in the main air duct 140 is blown to the surface of the frozen product to increase the air flow on the surface of the frozen product, the air flows back to the main air duct 140 through the air return opening 180, meanwhile, the temperature of the air is gradually increased, the unfreezing speed is accelerated, the unfreezing effect is improved, when the unfreezing time reaches the preset unfreezing time, the controller controls the first air door 151 to be closed, the second air door 161 to be opened, the evaporator 400 is started again, the refrigerator is restored to the original refrigeration working state, and the center final temperature of the unfrozen frozen product reaches about-4 ℃, and frozen meat at the temperature of-4 ℃ is easy to cut and shape.

Referring to fig. 2, it can be understood that the inner diameter of the main air duct 140 increases progressively along one end facing the defrosting port 170, that is, the inner diameter of the main air duct 140 increases progressively from bottom to top, so that the upper end of the main air duct 140 is conveniently connected to the first air duct 150 and the second air duct 160 at the same time, and on the other hand, the passing area of the wind is increased, the flow resistance of the wind is reduced, the wind can blow the frozen products through the defrosting port 170, and the defrosting speed is increased.

It can be understood that the thawing tuyere 170 is disposed toward the center of the accommodating space 210. For example, when the thawing means is the tray 200, the thawing vents 170 are disposed toward the center of the bottom wall of the tray 200, and when the thawing means is the drawer, the thawing vents 170 are disposed toward the center of the inner space of the drawer. Since the user habitually places the frozen product in the middle of the tray 200 or the drawer, the wind energy blown out from the thawing wind port 170 can be intensively blown to the frozen product to increase the wind flow on the surface of the frozen product, further accelerate the thawing rate and improve the thawing effect.

Referring to fig. 2, it can be understood that an end of the defrosting port 170 away from the chamber is provided with a wind guide portion 152, that is, the wind guide portion 152 is located at an end of the defrosting port 170 connected to the first wind duct 150, and the wind guide portion 152 may be a rounded corner or a chamfered corner. When the air is discharged, the air guiding portion 152 can guide the air to reduce the air outlet resistance, so that the air can be smoothly blown out from the thawing air port 170, the air flow on the surface of the frozen product is increased, the thawing rate is further increased, and the thawing effect is improved.

Referring to fig. 1 and 2, it can be understood that the return air opening 180 is provided with a plurality of louvers 181 toward one end of the chamber, the plurality of louvers 181 are spaced from bottom to top, and the louvers 181 extend toward the bottom of the case 100, for example, the louvers 181 are disposed obliquely downward. Because cold wind mouth 190 and unfreezing wind mouth 170 are located the upside of return air inlet 180, through setting up the tripe 181 of downward sloping, can avoid the wind path short circuit and influence cooling effect and unfreeze the effect, improve the reliability.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A refrigerator having an evaporator, comprising:

the refrigerator comprises a box body, a fan and a fan, wherein the box body is provided with a cavity, the box body is provided with a main air channel for installing the evaporator, and a unfreezing air port, a cold air port and a return air port which are communicated with the main air channel and the cavity, the cold air port is used for introducing cold air into the cavity, and the return air port is used for supplying air to return to the main air channel;

the unfreezing device is arranged in the chamber and is provided with an accommodating space for storing frozen products, and the unfreezing air port faces the accommodating space;

the fan is used for blowing the air in the main air duct to the accommodating space through the unfreezing air port and blowing the air to the cavity through the cold air port;

and the first air door is used for opening or closing the unfreezing air port.

2. The refrigerator according to claim 1, wherein: the defrosting air port is communicated with the main air channel through a first air channel, and the first air door is arranged in the first air channel.

3. A refrigerator according to claim 2, characterized in that: one end of the first air duct, which is connected with the unfreezing air port, is provided with an air guide part, and the air guide part is used for guiding air to the unfreezing air port.

4. The refrigerator according to claim 1, wherein: the box is equipped with two at least the cold wind gap, two at least the cold wind gap arrange in the both sides in wind gap unfreezes.

5. The refrigerator according to claim 1 or 4, wherein: the box body is also provided with a second air door, and the second air door is used for opening or closing the cold air port.

6. The refrigerator according to claim 5, wherein: the cold wind mouth through the second wind channel with main wind channel intercommunication, the second air door is located the second wind channel.

7. The refrigerator according to claim 6, wherein: the refrigerator also comprises a controller, wherein the first air door and the second air door are both electric air doors and are electrically connected with the controller, and the controller is used for controlling the opening or closing of the first air door and the second air door.

8. The refrigerator according to claim 1, wherein: the inner diameter of the main air duct increases progressively along one end facing the thawing air port.

9. The refrigerator according to claim 1, wherein: the unfreezing air port faces to the center of the accommodating space.

10. The refrigerator according to claim 1, wherein: the box is equipped with a plurality of tripes that are located the return air inlet, the tripe is towards the bottom of box extends.

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