CN110953804A

CN110953804A - A kind of refrigerator

Info

Publication number: CN110953804A
Application number: CN201911252774.2A
Authority: CN
Inventors: 杨大海; 董浩; 鞠晓晨; 王海燕
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-04-03
Anticipated expiration: 2039-12-09
Also published as: CN110953804B

Abstract

The invention discloses a refrigerator and relates to the technical field of refrigeration. The inner container of the temperature-variable chamber is not damaged during heating, the service life of the refrigerator is prolonged, the heat utilization rate of the heater is improved, and the energy consumption of the refrigerator is reduced. The refrigerator comprises a refrigerating chamber, a freezing chamber and a temperature-changing chamber, wherein the temperature-changing chamber comprises a heating assembly and a circulating air channel assembly, the heating assembly is arranged at the bottom of the temperature-changing chamber and used for heating food materials placed in the temperature-changing chamber, the upper portion of the heating assembly is in contact with the food materials for heat conduction, a heat exchange channel is arranged between the lower portion of the heating assembly and the bottom wall surface of the temperature-changing chamber, the heat exchange channel is provided with a heat exchange channel air inlet and a heat exchange channel air outlet, the circulating air channel assembly is used for enabling air in the temperature-changing chamber to circulate, and is provided with an air channel air inlet and an air channel air outlet, wherein the heat exchange channel air inlet is communicated. The invention can be used for heating food materials in the refrigerator.

Description

A kind of refrigerator

Technical Field

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

Background

With the development of society, the requirements of people on the quality of life are higher and higher. Therefore, the demand for diversification and individuation of the storage of things in the home life of people is more and more strong, and accordingly, a refrigerator with a temperature changing chamber is produced. The temperature in the temperature changing chamber of the refrigerator can be independently adjusted, so that the refrigerator not only has a refrigeration function, but also has the functions of heat preservation, heating and the like, and can meet the requirement of a user on storing various articles. As shown in fig. 1, in a conventional refrigerator having a temperature-variable chamber, a heater 01 is often directly attached to an inner wall of an inner container 02 of the temperature-variable chamber to heat the refrigerator. However, the temperature of the heater 01 is too high in the heating process, and the heater 01 is in direct contact with the temperature-variable chamber liner 02, so that the problems of aging, cracking and the like of the temperature-variable chamber liner 02 are easily caused, the service life of the refrigerator is shortened, in addition, heat generated at the bottom of the heater 01 is not used for heating food materials, heat waste is caused, and the energy consumption of the refrigerator is increased.

Disclosure of Invention

The embodiment of the invention provides a refrigerator, which does not damage an inner container of a temperature-changing chamber during heating, prolongs the service life of the refrigerator, improves the utilization rate of heat emitted by a heating assembly and further reduces the energy consumption of the refrigerator.

To achieve the above object, an embodiment of the present invention provides a refrigerator including: the refrigerator comprises a refrigerating chamber and a freezing chamber, wherein the set temperature of the freezing chamber is lower than that of the refrigerating chamber; a variable temperature chamber independent of the refrigerating chamber and the freezing chamber, the variable temperature chamber including: the heating assembly is arranged at the bottom of the temperature-changing chamber and used for heating food materials placed in the temperature-changing chamber, the upper part of the heating assembly is in contact with the food materials for heat conduction, a heat exchange channel is arranged between the lower part of the heating assembly and the bottom wall surface of the temperature-changing chamber, and the heat exchange channel is provided with a heat exchange channel air inlet and a heat exchange channel air outlet; the circulating air channel assembly is used for circulating the air in the temperature changing chamber; the circulating air duct assembly is provided with an air duct air inlet and an air duct air outlet; the air inlet of the heat exchange channel is communicated with the temperature changing chamber, the air inlet of the air channel is communicated with the air outlet of the heat exchange channel, and the air outlet of the air channel is communicated with the temperature changing chamber.

According to the refrigerator provided by the embodiment of the invention, the upper part of the heating assembly can be in contact with food materials to conduct heat, the food materials are directly heated, heat generated by the lower part of the heating assembly can exchange heat with cold air in the heat exchange channel, the air after absorbing heat is sucked into the circulating air channel by the circulating air channel assembly and then enters the temperature changing chamber through the air outlet of the air channel to exchange heat with the food materials, the food materials are heated, and the air after heat dissipation is sucked into the heat exchange channel again to form circulation. From this, because set up heat transfer passageway between the wall of heating element and temperature-changing chamber, heating element can not direct contact with the temperature-changing chamber wall, can not harm the inner bag during so heating, has prolonged the life of refrigerator, because the heat that the heating element lower part produced is used for heating edible material by the indirect, has improved the heat utilization ratio that heating element gived off, and then has reduced the energy consumption of refrigerator.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the position of a heater and the inner container of a temperature-varying chamber in a prior art refrigerator;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic structural view of a temperature-varying chamber according to an embodiment of the present invention;

FIG. 4 is an exploded view of the temperature-varying chamber of the embodiment of the present invention, schematically shown in FIG. 1;

FIG. 5 is an exploded view of the temperature-varying chamber of the embodiment of the present invention, schematically shown in FIG. 2;

FIG. 6 is an exploded view of an exemplary embodiment of a circulating duct assembly;

FIG. 7 is a schematic view showing the air flow of the temperature changing chamber in the embodiment of the present invention;

FIG. 8 is a schematic perspective view of a heating element according to an embodiment of the present invention;

FIG. 9 is a front view of a heating assembly in an embodiment of the present invention;

FIG. 10 is a bottom view of a heating assembly in an embodiment of the present invention;

fig. 11 is a view taken along direction a of fig. 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 2 and 3, the refrigerator provided by the embodiment of the present invention includes a refrigerating chamber 1, a freezing chamber 3, and a temperature-changing chamber 2, a set temperature of the freezing chamber 3 is lower than a set temperature of the refrigerating chamber 1, and the temperature-changing chamber 2 is independent from the refrigerating chamber 1 and the freezing chamber 3, wherein the temperature-changing chamber 2 includes an inner container 24 and a door container 26 disposed at an opening of the inner container 24, the inner container 24 and the door container 26 are sealed by a sealing strip 28, a heating assembly 21 and a circulating air duct assembly 22 are disposed inside the temperature-changing chamber 2, the heating assembly 21 is disposed at a bottom of the temperature-changing chamber 2 and is configured to heat food materials placed in the temperature-changing chamber 2, an upper portion of the heating assembly 21 contacts the food materials to conduct heat, a heat exchange channel 31 is disposed between a lower portion of the heating assembly 21 and a bottom wall surface of the inner container 24, the heat exchange channel 31 is, the circulating air duct assembly 22 is provided with an air duct air inlet 224 and an air duct air outlet 223, the heat exchange channel air inlet 35 is communicated with the temperature changing chamber 2, the air duct air inlet 224 is communicated with the heat exchange channel air outlet 215, the air duct air outlet 223 is communicated with the temperature changing chamber 2, and heat generated by the lower portion of the heating assembly 21 sequentially passes through the heat exchange channel 31 and the circulating air duct assembly 22 and then enters the temperature changing chamber 2 to heat food materials.

According to the refrigerator provided by the embodiment of the invention, heat generated at the lower part of the heating assembly 21 can exchange heat with cold air in the heat exchange channel 31, the air after absorbing heat is sucked into the temperature changing chamber 2 by the circulating air duct assembly 22 to exchange heat with food materials, the food materials are heated, and the air after dissipating heat is sucked into the heat exchange channel 31 again to form circulation. From this, because set up heat transfer passageway 31 between the bottom surface of heating element 21 and inner bag 24, heating element 21 can not direct contact with inner bag 24, so can not harm inner bag 24 during the heating, prolonged the life of refrigerator, because the heat that heating element 21 lower part produced is used for heating the edible material by the indirect, improved heating element 21's heat utilization ratio, and then reduced the energy consumption of refrigerator.

The heating assembly 21 has various realizable structures, and for example, the heating assembly 21 may be heated by a heating tube; as another example, referring to fig. 4 and 5, the heating assembly 21 may also be heated by a heating film. Because the heating pipe occupation space is big, and need fix during the installation, it is inconvenient to install, however, heating film occupation space is little and only need attach during the installation can, so, heating element 21 preferably adopts the heating film heating.

Referring to fig. 4, 7 and 8, since the space inside the refrigerator is limited, the heating assembly 21 may include a supporting frame 213 and a heating layer 36, a lower side surface of the supporting frame 213 is hermetically connected to a bottom wall surface of the temperature varying chamber 2, a heat exchange passage air inlet 35 and a heat exchange passage air outlet 215 are disposed at opposite sides of the supporting frame 213, the heating layer 36 is disposed at an upper side surface of the supporting frame 213, the heating layer 36, the supporting frame 213 and the bottom wall surface of the temperature varying chamber 2 enclose a heat exchange passage 31, the heating layer 36 includes a first heat conducting plate 214, a first heating film 211 and a second heat conducting plate 212 which are sequentially bonded from top to bottom, the first heating film 211 is attached between the first heat conducting plate 214 and the second heat conducting plate 212, the first heat conducting plate 214 is used to directly conduct heat generated at an upper portion of the first heating film 211 to the food material, the second heat conducting plate 212 is used to, the heat of the lower portion of the first heating film 211 is exchanged with the cold air in the heat exchange passage 31, and is used for indirectly heating the food material after being heated. Therefore, most of heat generated at the lower part of the first heating film 211 can directly enter the heat exchange channel 31, so that heat loss is reduced, the installation space can be saved, and the installation is convenient.

Referring to fig. 7 to 10, the supporting frame 213 may include a panel 216 and a supporting plate 217, the heating layer 36 is disposed on the panel 216, the supporting plate 217 is hermetically connected to the bottom wall surface of the temperature changing chamber 2, the number of the supporting plates 217 may be two, and the supporting plates are respectively supported on two sides of the bottom surface of the panel 216, the panel 216 is provided with a channel 33 that is through from top to bottom, one end of the panel 216 is provided with a heat exchange channel air inlet 35, the other end of the panel 216 is provided with a heat exchange channel air outlet 215, the channel 33 may be square, rectangular, circular, polygonal, and the like, and the shape of the channel: the area of the channel 33 is as large as possible while ensuring that sufficient support is provided for the heater assembly 21. Therefore, the contact area between the second heat conduction plate 212 and the face plate 216 is as small as possible, and the heat conducted from the first heating film 211 to the face plate 216 is also as small as possible, so that the heat dissipation of the first heating film 211 can be reduced.

Referring to fig. 10, when the radial dimension of the heat exchange channel 31 is too large, the heat exchange stroke may be long, which may easily cause heat waste, therefore, a plurality of rib plates 230 may be disposed at the lower side of the second heat conduction plate 212, and the length direction of all rib plates 230 may be consistent with the extending direction of the heat exchange channel 31, so that the heat exchange channel 31 may be divided into a plurality of sub heat exchange channels disposed side by side. Therefore, compared with a large heat exchange channel, the gas can be selected to pass through a nearby sub-heat exchange channel, the heat exchange stroke is shorter, and the heat exchange efficiency is improved.

The heat exchange channel air outlet 215 may be disposed at a plurality of positions, for example, the heat exchange channel air outlet 215 may correspond to one or more sub heat exchange channels located in the middle, or may correspond to a sub heat exchange channel on any side, when the heat exchange channel air outlet 215 corresponds to a sub channel in the middle, the heat exchange stroke is shortest, and when the lengths of all the rib plates 230 are equal, because the distances between the sub heat exchange channel openings and the heat exchange channel air outlet 215 are generally short, the cold air in the sub heat exchange channels located on both sides is not easily collected into the heat exchange channel air outlet 215 located in the middle, and the cold air is easily guided to flow unevenly, therefore, the lengths of the plurality of rib plates 230 should preferably be unequal, and the arrangement rule of the plurality of rib plates 230 is that the lengths of the rib plates 230 are gradually decreased from the middle to both sides along the radial direction. Therefore, the heat exchange is smoother, and the heat exchange efficiency is further improved.

Referring to fig. 3, 7 and 8, the circulating air duct assembly 22 may be disposed inside the temperature varying chamber 2, the air duct inlet 224 is close to the bottom of the temperature varying chamber 2, the air duct outlet 223 is close to the top of the temperature varying chamber 2, one end of the panel 216 close to the circulating air duct assembly 22 is upwardly provided with a protrusion 219, the heat exchange passage outlet 215 is disposed on the protrusion 219, one end of the panel 216 far from the circulating air duct assembly 22 is formed with a folded edge 218, and the heat exchange passage inlet 35 is disposed on the folded edge 218. Therefore, cold air can form a large circulation through the heat exchange channel 31, the circulating air channel assembly 22 and the temperature changing chamber 2, more food in the temperature changing chamber 2 can be heated, and because the air channel air inlet 224 generally has a certain height from the bottom of the temperature changing chamber 2, the heat exchange channel air outlet 215 is arranged at the protrusion 219, the connection between the support frame 213 and the circulating air channel assembly 22 is smoother, and the air enters the circulating air channel assembly 22 from the heat exchange channel 31 more smoothly.

Referring to fig. 11, for processing convenience, heat transfer passageway air intake 35 can be a rectangular hole or rectangular hole, nevertheless because the user can stretch into heat transfer passageway 31 with the hand because of the maloperation, lead to being scalded, in addition, a rectangular hole or rectangular hole can't block in large granule object gets into heat transfer passageway 31, consequently, heat transfer passageway air intake 35 can be a plurality of holes along the length direction equipartition of hem 218, the size in hole can be as little as possible under the prerequisite of guaranteeing the heat transfer volume, the restriction is not made to the shape in hole, can also be for square hole etc. for the round hole. Therefore, the safety of the refrigerator is improved, and meanwhile large-particle objects can be prevented from entering the refrigerator to pollute the refrigerator.

Referring to fig. 3 and 6, the circulating air duct assembly 22 may include a first air duct foam 25, a second air duct foam 37, and an air duct cover 221, the first air duct foam 25 and the second air duct foam 37 are connected to each other, a circulating air duct 32 is formed between the first air duct foam 25 and the second air duct foam 37, a circulating fan 222 is disposed in the circulating air duct 32, the air duct cover 221 covers outer sides of the first air duct foam 25 and the second air duct foam 37 and is clamped with an inner wall of the temperature changing chamber 2, and an air duct air outlet 223 and an air duct air inlet 224 are disposed on the air duct cover. Thus, the circulation fan 222 can accelerate the whole circulation heat exchange process, thereby reducing heat loss.

The number of the air duct air outlets 223 and the air duct air inlets 224 can be one or more, the first air duct foam 25 and the second air duct foam 37 can also be used for heat insulation and heat dissipation reduction, a circulating fan mounting rack 225 can be arranged on the second air duct foam 37, and the circulating fan 222 is mounted on the circulating fan mounting rack 225. Thus, the installation of the circulation fan 222 is more convenient and more reliable.

In addition, some food materials may not be suitable for blowing air during heating or keeping warm in the refrigerator, for example, when dough is fermented, moisture on the surface of the dough is lost if air is blown, and the surface of the dough is hard. When indirect heating is not needed, only the circulating fan 222 needs to be turned off, so that various selection modes are provided for users, and the use is more convenient for the users.

Since the refrigerator sometimes needs to be heated quickly when in use, and the power of the first heating film 211 is generally a fixed value, the heating time is also a fixed value, and quick heating cannot be achieved, therefore, an auxiliary heating assembly for heating the food materials placed in the temperature changing chamber 2 can be arranged inside the circulating air duct 32. Thus, the heating time can be shortened and rapid heating can be realized.

Referring to fig. 6, the auxiliary heating assembly may be a second heating film 226 attached to an inner wall of the air duct cover plate 221, and when rapid heating is required, the second heating film 226 may perform auxiliary heating only by turning on a power supply of the second heating film 226, thereby saving an installation space and also achieving rapid heating.

Referring to fig. 3 and 6, since some food materials may need to be refrigerated during the use of the refrigerator, the refrigerator may further include a refrigeration assembly for refrigerating the temperature changing chamber 2, and the circulating air duct assembly 22 further includes a control damper 27, where the control damper 27 is used for controlling the connection and disconnection between the refrigeration assembly 22 and the circulating air duct 32. Therefore, when refrigeration is needed, only the control damper 27 needs to be opened, and the first heating film 211 needs to be closed, so that various selection modes are provided for users, and the use is more convenient for the users.

Since a user may encounter the situation that the heating area and the volume of the food material are both small in practical use, when the first heating film 211 is a whole, only integral heating can be realized, once heating is started, the temperature of the whole temperature-changing chamber 2 is increased, when the heating area and the volume of the food material to be heated are both small, the heat absorbed by the food material is small, and heat waste is caused, therefore, the first heating film 211 can comprise a plurality of sub-heating films which are positioned on the same horizontal plane, each sub-heating film can independently heat the temperature-changing chamber 2, so that a plurality of sub-heating films can be respectively heated, when the volume heating area of the food material to be heated is large, the plurality of sub-heating films can be heated at high power, when the heating area of the food material to be heated is small, the food material can be placed on one or a plurality of sub-heating films for heating, other sub-heating films without food materials can be heated at low power or not. Therefore, the heat waste is reduced, and the energy is saved.

When the food is heated in a subarea mode, the upper portion of one or more sub-heating films is needed to be judged, the judgment result is transmitted to the control unit, and the control unit can only start the corresponding sub-heating films to heat the food on the upper portion of the sub-heating films, so that the inner container 24 can be internally provided with a plurality of second temperature sensors 34 for detecting the temperature of the food, each second temperature sensor 34 is an infrared temperature sensor, and for the convenience of installation, the second temperature sensors 34 can be fixed on the top of the inner container 24, and the detection area of each second temperature sensor 34 can at least cover one sub-heating film. Therefore, the position and the temperature of the food material can be accurately detected no matter which sub-heating film or sub-heating films the food material is positioned on. In order to accurately detect the temperature in the temperature-variable chamber 2, a first temperature sensor 23 may be provided inside the inner container 24. Therefore, the temperature value of the temperature changing chamber 2 can be provided for the control system, and the control system can conveniently and accurately judge the heating starting or closing time.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A refrigerator, comprising:

the refrigerator comprises a refrigerating chamber and a freezing chamber, wherein the set temperature of the freezing chamber is lower than that of the refrigerating chamber;

a temperature-varying chamber independent of the refrigerating chamber and the freezing chamber, wherein the temperature-varying chamber includes:

the heating assembly is arranged at the bottom of the temperature-changing chamber and used for heating food materials placed in the temperature-changing chamber, the upper part of the heating assembly is in contact with the food materials for heat conduction, a heat exchange channel is arranged between the lower part of the heating assembly and the bottom wall surface of the temperature-changing chamber, and the heat exchange channel is provided with a heat exchange channel air inlet and a heat exchange channel air outlet;

the circulating air channel assembly is used for circulating the air in the temperature changing chamber; the circulating air duct assembly is provided with an air duct air inlet and an air duct air outlet;

the air inlet of the heat exchange channel is communicated with the temperature changing chamber, the air inlet of the air channel is communicated with the air outlet of the heat exchange channel, and the air outlet of the air channel is communicated with the temperature changing chamber.

2. The refrigerator of claim 1, wherein the heating assembly comprises:

the lower side surface of the supporting frame is hermetically connected with the bottom wall surface of the temperature-changing chamber; the heat exchange channel air inlet and the heat exchange channel air outlet are arranged on two opposite sides of the supporting frame;

the heating layer is arranged on the upper side face of the support frame, and the heating layer, the support frame and the bottom wall face of the temperature changing chamber form the heat exchange channel in an enclosing mode;

the zone of heating is including bonding first heat-conducting plate, first heating film and the second heat-conducting plate that forms from top to bottom in proper order.

3. The refrigerator according to claim 2, wherein a plurality of ribs are provided at a lower side of the second heat conduction plate, and a length direction of the plurality of ribs coincides with an extension direction of the heat exchange channel to divide the heat exchange channel into a plurality of sub heat exchange channels.

4. The refrigerator according to claim 3, wherein the air outlet of the heat exchange channel corresponds to at least one of the heat exchange sub-channels located in the middle, the length of the plurality of rib plates is different, and the length of the plurality of rib plates is sequentially reduced from the middle to two sides along the radial direction of the heat exchange channel.

5. The refrigerator according to any one of claims 2 to 4, wherein the circulation duct assembly is disposed inside the variable temperature chamber; the air duct air inlet is close to the bottom of the temperature-changing chamber, and the air duct air outlet is close to the top of the temperature-changing chamber;

the heat exchange device is characterized in that a bulge is upwards arranged at one end, close to the circulating air duct assembly, of the supporting frame, an air outlet of the heat exchange channel is formed in the bulge, a folded edge is formed at one end, far away from the circulating air duct assembly, of the supporting frame, and an air inlet of the heat exchange channel is formed in the folded edge.

6. The refrigerator of claim 5, wherein the circulation duct assembly comprises:

the air conditioner comprises a first air duct foam and a second air duct foam which are connected with each other, wherein a circulating air duct is formed between the first air duct foam and the second air duct foam, and a circulating fan is arranged in the circulating air duct;

the air duct cover plate covers the first air duct foam and the second air duct foam outside and is connected with the inner wall of the temperature changing chamber in a clamping mode, and the air duct cover plate is provided with an air duct air outlet and an air duct air inlet which are communicated with the circulating air duct.

7. The refrigerator of claim 6, wherein an auxiliary heating assembly for heating the food materials placed in the temperature-changing chamber is provided inside the circulation duct.

8. The refrigerator of claim 7, wherein the auxiliary heating assembly comprises a second heating film attached to an inner wall of the air duct cover plate.

9. The refrigerator according to claim 8, further comprising a refrigeration assembly for refrigerating the temperature-variable chamber, wherein the circulation air duct assembly further comprises a control damper disposed in the circulation air duct, and the control damper is used for controlling on/off of the refrigeration assembly and the circulation air duct.

10. The refrigerator of claim 2, wherein the first heat-conducting plate and the second heat-conducting plate are both one plate, and the first heating film includes a plurality of sub-heating films, which are located on the same horizontal plane.