CN217876645U - Refrigeration appliance and drawer assembly thereof - Google Patents

Abstract

The utility model provides a refrigeration utensil and drawer assembly thereof, drawer assembly wherein includes drawer body and lid, the drawer body has storing space and is used for carrying out the access to storing space and eats the access opening of material operation, the lid covers on the access opening, the lid is formed with air current chamber and the air intake that communicates with air current chamber, and the lid still is formed with the gas pocket, the gas pocket sets up to communicate air current chamber and storing space, so that the air current that gets into the air current chamber gets into storing space through the gas pocket at least partially, the edible material of depositing in the direct cooling storing space, storing space's cooling with higher speed, thereby the circulation requirement of little volume storing space to the wind path has been satisfied, heat exchange efficiency is improved, storing space's temperature homogeneity has been guaranteed.

Description

Refrigeration appliance and drawer assembly thereof

Technical Field

The utility model relates to a cold-stored freezing technical field especially relates to a refrigeration utensil and drawer assembly thereof.

Background

For a conventional small-volume refrigerating chamber, the refrigerating temperature of the evaporator can meet the refrigerating requirement due to small volume, and the temperature control requirement of the chamber can be met even if air supply and return air are not strictly divided. However, for the semiconductor refrigerating chamber, due to the limitation of the performance of the semiconductor, the refrigerating capacity and the refrigerating efficiency are small, and even if the chamber has a small volume, the conventional air duct structure cannot meet the requirement.

Disclosure of Invention

An object of the utility model is to provide a solve the refrigeration utensil of above-mentioned problem and drawer assembly thereof at least.

A further object of the present invention is to improve the temperature uniformity of the storage space.

In particular, according to one aspect of the present invention, the present invention provides, at first, a drawer assembly comprising:

the drawer comprises a drawer body, a drawer body and a drawer body, wherein the drawer body is provided with a storage space and an access opening used for performing food material access operation on the storage space;

the cover body covers the access opening, an airflow cavity and an air inlet communicated with the airflow cavity are formed in the cover body, and an air hole is formed in the cover body and is used for communicating the airflow cavity with the storage space, so that at least part of airflow entering the airflow cavity enters the storage space through the air hole.

Optionally, the cover and the periphery of the access opening and the periphery of the drawer body define a separation space, so that at least part of the airflow entering the storage space from the airflow chamber enters the periphery of the drawer body through the separation space.

Optionally, the cover body includes a top plate, a bottom plate, two side plates for connecting two lateral side edges of the top plate with two lateral side edges of the bottom plate, and a rear end plate for connecting a rear end of the top plate with a rear end of the bottom plate;

the air inlet is formed in the rear end plate, the air flow cavity is formed by limiting the top plate, the bottom plate, the two side plates and the rear end plate, and the air hole is formed in the bottom plate.

Optionally, the cover body includes a top plate, a bottom plate, two side plates for connecting two lateral side edges of the top plate with two lateral side edges of the bottom plate, and a rear end plate for connecting a rear end of the top plate with a rear end of the bottom plate;

the air inlet is formed in the rear end plate, the airflow cavity is formed by limiting the top plate, the bottom plate, the two side plates and the rear end plate, and the air hole is formed in the bottom plate.

Optionally, the number of the air holes is multiple, the air holes are distributed on the bottom plate at intervals, and the number of the air holes is gradually decreased in a direction close to the air inlet.

Optionally, the top plate is horizontally arranged, and the bottom plate is inclined downwards from front to back.

Optionally, the front ends of the top and bottom plates define a front opening;

the drawer assembly further comprises:

and the guide plate is arranged at the front opening and is used for guiding the airflow flowing out from the front opening to the lower front.

According to the utility model discloses an on the other hand, the utility model also provides a refrigeration utensil, include:

a case defining a compartment therein;

in any one of the drawer assemblies described above, the cover of the drawer assembly is disposed in the compartment, and the drawer body of the drawer assembly is disposed in the compartment in a manner of being able to be pushed and pulled;

the semiconductor refrigeration system is configured to cool air around the semiconductor refrigeration system to form cooling air flow, and the air supply assembly is provided with an air supply end protruding towards the cover body, and the air supply end is communicated with the airflow cavity of the cover body, so that the cooling air flow enters the airflow cavity of the cover body.

Optionally, the air supply end is configured to be embedded in the air inlet.

Optionally, the air supply assembly is located at the rear side of the drawer assembly, and the air supply assembly is further provided with an air return opening, and the air return opening is located below the drawer body and is used for communicating the space of the chamber with the space where the semiconductor refrigeration system is located.

Optionally, the semiconductor refrigeration system comprises a semiconductor refrigeration sheet having a hot end and a cold end, a cold heat exchanger connected to the cold end, and a hot heat exchanger connected to the hot end;

the refrigerating appliance also comprises a compressor and a capillary tube, wherein the hot heat exchanger is arranged between the outlet of the capillary tube and the inlet of the compressor, so that a refrigerant flows through the hot heat exchanger to dissipate heat of the hot end.

The utility model discloses a refrigeration utensil and drawer assembly thereof is through addding the lid that has air current chamber and gas pocket for outside air current advances into the air current chamber, and in getting into the storing space of drawer body through the gas pocket from the air current chamber, directly cools off the edible material of depositing in the storing space, and storing space's cooling with higher speed, thereby satisfied little volume storing space and to the circulation requirement of wind path, improved heat exchange efficiency, guaranteed storing space's temperature homogeneity.

Further, the utility model discloses a refrigeration utensil and drawer assembly thereof, lid and access open-ended periphery and the outer peripheral edges of drawer body all can inject there is the interval space, and the partial air current that gets into the air current chamber can circulate in the periphery of drawer body, avoids getting into the too much and air-dry edible material of air current in the storing space, combines together through the indirect heat transfer with aforementioned direct heat transfer and here in addition, has further guaranteed storing space's temperature homogeneity.

Further, the utility model discloses a refrigeration device and drawer assembly thereof, the front end of roof and the front end of bottom plate can be injectd there is the front opening, and the front opening part can be provided with the guide plate, and the guide plate sets up to the air current that will flow by the front opening guide to the place ahead downwards to make partial air current flow to the outside of drawer body by the front opening, promote the amount of wind circulation, effectively improve the heat exchange efficiency of room between.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigeration appliance according to an embodiment of the present invention;

fig. 2 is a schematic view of a combination of a drawer assembly, a semiconductor refrigeration system and an air supply assembly of a refrigeration appliance according to an embodiment of the present invention;

FIG. 3 is an exploded schematic view of a drawer assembly and an air supply assembly of a refrigeration appliance according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a drawer assembly of a refrigeration appliance according to an embodiment of the present invention;

fig. 5 is a schematic sectional view of a drawer assembly of a refrigeration device according to an embodiment of the present invention;

fig. 6 is a schematic view of a semiconductor refrigeration system of a refrigeration appliance according to an embodiment of the present invention; and

fig. 7 is a connection schematic diagram of a refrigeration system of a refrigeration appliance according to an embodiment of the present invention.

Detailed Description

For convenience of description, the directions of "up", "down", "front", "back", "top", "bottom", "lateral" and the like mentioned in the specification are defined according to the spatial position relationship of the refrigeration device 10 in the normal working state.

The refrigerator 10 may be a refrigerator, an ice chest, or other equipment having a refrigerating and freezing function. Fig. 1 is a structural view illustrating a refrigerator as an example, and fig. 2 to 5 show a structural view including a drawer assembly 160.

As shown in fig. 2 to 5, the drawer assembly 160 of the present embodiment includes a drawer body 164 and a cover, the drawer body 164 has a storage space 160a and an access opening for performing an operation of accessing food material to the storage space 160a, the cover covers the access opening, the cover is formed with an airflow chamber 160c and an air inlet 160b communicated with the airflow chamber 160c, and the cover is further formed with an air hole 166a, the air hole 166a is configured to communicate the airflow chamber 160c with the storage space 160a, so that the airflow entering the airflow chamber 160c enters the storage space 160a at least partially through the air hole 166 a.

In the drawer assembly 160 of the present embodiment, by additionally providing the cover body with the airflow cavity 160c and the air hole 166a, the external airflow enters the airflow cavity 160c first, and enters the storage space 160a of the drawer body 164 through the air hole 166a from the airflow cavity 160c, so as to directly cool the food stored in the storage space 160a, and accelerate the cooling of the storage space 160a, thereby improving the heat exchange efficiency of the storage space 160a, and ensuring the temperature uniformity of the storage space 160a.

In the embodiment shown in the drawings, the upper end of the drawer body 164 is open to define an access opening, and the air inlet 160b is formed on the rear end surface of the drawer body 164.

In one embodiment, the cover includes a top plate 161, a bottom plate 166, two side plates 162 for connecting both lateral side edges of the top plate 161 with both lateral side edges of the bottom plate 166, and a rear end plate 163 for connecting a rear end portion of the top plate 161 with a rear end portion of the bottom plate 166, the intake vent 160b is formed on the rear end plate 163, the airflow chamber 160c is configured to be defined by the top plate 161, the bottom plate 166, the two side plates 162, and the rear end plate 163, and the air hole 166a is formed on the bottom plate 166. The cover body designed in this way is simple in structure, easy to process and cost-saving.

As shown in the drawings, the number of the air holes 166a may be plural, and in one embodiment, the air holes 166a are evenly distributed on the bottom plate 166, and the aperture of each air hole 166a decreases in a direction approaching the air inlet 160 b. That is, the closer to the intake vent 160b, the smaller the aperture of the air vent 166 a.

In another embodiment, the air holes 166a are spaced on the bottom plate 166, and the number of the air holes 166a decreases in a direction approaching the air inlet 160 b. That is, the number of the air holes 166a is smaller as it is closer to the air inlet 160 b.

Generally, the closer to the air inlet 160b, the higher the air pressure, as in the above two embodiments, by specially designing the distribution of each air flow, on one hand, it can be ensured that the air intake amount passing through the air hole 166a is substantially the same from different positions of the air inlet 160b, so as to reduce the temperature difference at different positions in the storage space 160a, improve the temperature uniformity of the storage space 160a, and on the other hand, it can reduce the direct blowing to the food material in the storage space 160a, and maintain the humidity of the food material.

The periphery of the cover and the access opening and the outer periphery of the drawer body 164 may each define a space such that at least a portion of the airflow entering the storage space 160a from the airflow chamber 160c enters the periphery of the drawer body 164 via the space. In the embodiment of the cover including the above structure, the bottom plate 166 and the periphery of the access opening, and the two side plates 162 and the two lateral side edges of the drawer body 164 form a space.

In this embodiment, a part of the airflow entering the airflow chamber 160c may circulate around the drawer body 164, so as to prevent the food material from being air-dried due to excessive airflow entering the storage space 160a, and further ensure the temperature uniformity of the storage space 160a by combining the aforementioned direct heat exchange with the indirect heat exchange.

As shown in the drawings, the top plate 161 may be disposed horizontally, and the bottom plate 166 is inclined downward from front to back to guide the airflow of the airflow chamber 160c, so that more airflow enters the periphery of the drawer body 164 from the airflow chamber 160c through the aforementioned space, and further excessive airflow is prevented from blowing the food material.

The outer edge of the access opening of the drawer body 164 is inclined downward from front to rear, that is, the rear surface of the drawer body 164 is lower than the front surface thereof, so that the drawer body 164 is in a state of being higher at the front and lower at the rear to be engaged with the bottom plate 166.

The front end of the top plate 161 and the front end of the bottom plate 166 may define a front opening (not numbered in the drawing because the front opening is blocked by the baffle 165), and the baffle 165 may be disposed at the front opening, and the baffle 165 may be configured to guide the airflow flowing out from the front opening to the lower front, so that a part of the airflow flows to the outside of the drawer body 164 from the front opening, and the circulation of the airflow is promoted.

As shown in the drawing, the cross section of the guide plate 165 is in a forward convex arc shape to guide the airflow by the rear wall surface of the guide plate 165. The guide plate 165 is located above the front end surface of the drawer body 164, and does not interfere with the movement of the drawer body 164.

The drawer assembly 160 of the present embodiment is disposed in one compartment 110 defined by the box body of the refrigeration appliance 10, specifically, the cover of the drawer assembly 160 may be disposed in the compartment 110, that is, mounted in the compartment 110, and the drawer body 164 of the drawer assembly 160 may be disposed in the compartment 110 in a push-pull manner, that is, the drawer body 164 may be operated to slide between a position pushed into the compartment 110 and a position pulled out of the compartment 110, so as to perform an operation of accessing food materials.

The refrigeration appliance 10 of the present embodiment may further include a semiconductor refrigeration system 150 configured to cool the air around the semiconductor refrigeration system 150 to form a cooling air flow, and an air supply assembly having an air supply end 172a protruding toward the cover, the air supply end 172a communicating with the airflow cavity 160c of the cover to allow the cooling air flow to enter the airflow cavity 160c of the cover.

In a preferred embodiment, the air delivery end 172a can be configured to fit into the air inlet 160b such that the cooling air flow from the air delivery end 172a is completely into the air flow chamber 160c, thereby avoiding air delivery short circuits.

The air supply assembly may be located at a rear side of the drawer assembly 160, the semiconductor cooling system 150 may be located at a rear side of the air supply assembly, the air supply assembly may include a housing 172 and an air supply blower 171 disposed in the housing 172, in the embodiment shown in the drawings, the air supply blower 171 is a centrifugal blower, a front end surface of the housing 172 is formed with a forwardly protruding air supply end 172a above the air supply blower 171, and the air supply blower 171 is configured to promote air flow circulation between a space where the semiconductor cooling system 150 is located and the compartment 110.

The air supply assembly further comprises an air return opening 172b, wherein the air return opening 172b is located below the drawer body 164 and is used for communicating the space of the compartment 110 with the space where the semiconductor refrigeration system 150 is located, so that return air subjected to heat exchange with the compartment 110 returns to the space where the semiconductor refrigeration system 150 is located through the air return opening and is cooled again by the semiconductor refrigeration system 150, and therefore air flow circulation is formed, and the temperature in the compartment 110 is continuously reduced.

As shown in fig. 6 and 7, the semiconductor refrigeration system 150 includes a semiconductor refrigeration sheet 155 having a hot end 153 and a cold end 154, a cold heat exchanger 152 connected to the cold end 154, and a hot heat exchanger 151 connected to the hot end 153, and the refrigeration appliance 10 further includes a compressor and a capillary tube, and the hot heat exchanger 151 is disposed between an outlet of the capillary tube and an inlet of the compressor, so that the refrigerant flows through the hot heat exchanger 151 to dissipate heat of the hot end 153.

A heat insulating sponge 157 is filled between a portion of the hot heat exchanger 151 not connected to the hot end 153 and a portion of the cold heat exchanger 152 not connected to the cold end 154 to prevent heat exchange between the hot heat exchanger 151 and the cold heat exchanger 152. Hot end 153 is also coated with a thermally conductive silicone grease 156 to accelerate heat dissipation from hot end 153.

As is well known to those skilled in the art, the semiconductor refrigeration system 150 mainly utilizes the peltier effect, when current passes through a galvanic couple formed by two different semiconductor materials connected in series, heat can be absorbed and released at two ends of the galvanic couple respectively, so as to achieve the purpose of refrigeration. The semiconductor cooling fins 155 generate a temperature difference between the hot side 153 and the cold side 154 after being energized, and when the temperature of the hot side 153 is lowered, the temperature of the cold side 154 is lowered. Therefore, to reduce the temperature of cold end 154, the heat released by hot end 153 needs to be dissipated continuously to maintain the reduced temperature of cold end 154.

In this embodiment, the hot side 153 of the semiconductor refrigeration system 150 dissipates heat by means of a compression refrigeration system. The refrigerant gas in a high-temperature and high-pressure state discharged from the outlet of the compressor 101 enters the condenser 102, is condensed into a high-pressure and normal-temperature refrigerant liquid by the condenser 102, the refrigerant liquid enters the capillary tube 107, is changed into a low-temperature and low-pressure refrigerant through the throttling of the capillary tube 107, and the low-temperature and low-pressure refrigerant enters the heat exchanger 151 to exchange heat with the hot end 153. When the forward voltage is applied to the semiconductor refrigeration sheet 155, the refrigerant evaporates and absorbs heat in the hot heat exchanger 151 to quickly take away heat of the hot end 153, the hot end 153 is maintained in a low-temperature environment, further temperature reduction of the cold end 154 is realized by virtue of the refrigeration temperature difference of the semiconductor, and deep refrigeration of the compartment 110 is realized by heat exchange of the cold heat exchanger 152 in an indirect contact or forced convection mode, so that the drawer assembly 160 is at a cryogenic temperature and meets the cryogenic requirement of a user.

As shown in fig. 1, the refrigerator 10 further includes a refrigerating chamber 120, a freezing chamber 130, and an ice making chamber 140 defined in the casing, the refrigerator 10 further includes a refrigerating evaporator 103, a freezing evaporator 104, another capillary tube 106, and a switching valve 108, an inlet of the switching valve 108 communicates with an outlet of the condenser 102, a first outlet of the switching valve 108 is connected to an inlet of the capillary tube 107, a second outlet of the switching valve 108 is connected to an inlet of the another capillary tube 106, and an inlet of the refrigerating evaporator 103 is connected to an outlet of the another capillary tube 106.

When the compartment 110 and/or the freezing chamber 130 require refrigeration, the switching valve 108 is controlled to conduct the first outlet thereof and the inlet of the capillary 107, and when the refrigerating chamber 120 requires refrigeration, the switching valve 108 is controlled to cause the second outlet thereof and the inlet of the other capillary 106.

The flow rate of the capillary tube 107 should be smaller than the flow rate of the other capillary tube 106, the flow rate of the capillary tube 107 is smaller, the throttling effect is stronger, when the switching valve 108 is switched to conduct the first outlet end of the switching valve with the inlet end of the capillary tube 107, the temperatures of the freezing evaporator 104 and the heat exchanger 151 can be lower, so that the deep cooling requirement of the compartment 110 and the low temperature requirement of the freezing chamber 130 are realized, and when the switching valve 108 is switched to conduct the second outlet end of the switching valve with the inlet end of the other capillary tube 106, the temperature of the refrigerating evaporator 103 can be reduced, so that the temperature requirement of the refrigerating chamber 120 is realized. At the same time as the freezing refrigeration, the freezing evaporator 104 may provide cooling energy to the ice making compartment 140.

The temperature range of the compartment 110 as the deep cooling chamber may be-30 to-40 ℃, the temperature range of the freezing chamber 130 may be-15 to-24 ℃, the temperature range of the refrigerating chamber 120 may be 1 to 9 ℃, and the foregoing temperature ranges are merely examples, and the present invention is not limited thereto.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made to the invention consistent with the principles of the invention, which may be directly determined or derived from the disclosure of the present invention, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (11)

1. A drawer assembly for a refrigeration appliance, comprising:

the drawer body is provided with a storage space and an access opening for performing food material access operation on the storage space;

the cover body covers the access opening, an airflow cavity and an air inlet communicated with the airflow cavity are formed in the cover body, an air hole is formed in the cover body, the airflow cavity is communicated with the storage space, and therefore at least part of airflow entering the airflow cavity enters the storage space through the air hole.

2. The drawer assembly of claim 1, wherein the drawer assembly is configured to be coupled to a drawer

The cover body, the periphery of the access opening and the periphery of the drawer body define a spacing space, so that at least part of the airflow entering the storage space from the airflow cavity enters the periphery of the drawer body through the spacing space.

3. The drawer assembly of claim 1, wherein the drawer assembly is configured to be coupled to a drawer

The cover body comprises a top plate, a bottom plate, two side plates and a rear end plate, wherein the two side plates are used for connecting two transverse side edges of the top plate with two transverse side edges of the bottom plate, and the rear end plate is used for connecting the rear end part of the top plate with the rear end part of the bottom plate;

the air inlet is formed in the rear end plate, the airflow cavity is formed by limiting the top plate, the bottom plate, the two side plates and the rear end plate, and the air hole is formed in the bottom plate.

4. The drawer assembly of claim 3, wherein the drawer assembly is a drawer-type drawer assembly

The air holes are distributed on the bottom plate at intervals, and the aperture of each air hole is gradually reduced in the direction close to the air inlet.

5. The drawer assembly of claim 4,

the air holes are distributed on the bottom plate at intervals, and the number of the air holes is gradually reduced in the direction close to the air inlet.

6. The drawer assembly of claim 3, wherein the drawer assembly is a drawer-type drawer assembly

The top plate is horizontally arranged, and the bottom plate is downwards inclined from front to back.

7. The drawer assembly of claim 6, wherein the drawer assembly is configured to be connected to a drawer

The front ends of the top plate and the bottom plate define a front opening;

the drawer assembly further comprises:

and the guide plate is arranged at the front opening and is used for guiding the airflow flowing out from the front opening to the lower front.

8. A refrigeration appliance, comprising:

a case defining a compartment therein;

the drawer assembly of any one of claims 1 to 7, wherein the lid of the drawer assembly is disposed within the compartment, and the drawer body of the drawer assembly is configured to be slidably disposed within the compartment;

the semiconductor refrigeration system is configured to cool air around the semiconductor refrigeration system to form cooling air flow, and the air supply assembly is provided with an air supply end protruding towards the cover body, and the air supply end is communicated with the airflow cavity of the cover body, so that the cooling air flow enters the airflow cavity of the cover body.

9. The refrigeration appliance according to claim 8, wherein said heat exchanger is a heat exchanger

The air supply end is arranged to be embedded into the air inlet.

10. The refrigeration appliance according to claim 8,

the air supply assembly is located on the rear side of the drawer assembly, the air supply assembly is further provided with an air return opening, and the air return opening is located below the drawer body and is used for communicating the space of the compartment with the space where the semiconductor refrigeration system is located.

11. The refrigeration appliance according to claim 8,

the semiconductor refrigerating system comprises a semiconductor refrigerating sheet with a hot end and a cold end, a cold heat exchanger connected with the cold end, and a hot heat exchanger connected with the hot end;

the refrigerating appliance also comprises a compressor and a capillary tube, wherein the hot heat exchanger is arranged between the outlet of the capillary tube and the inlet of the compressor, so that a refrigerant flows through the hot heat exchanger to dissipate heat of the hot end.

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