CN215176326U

CN215176326U - A kind of refrigerator

Info

Publication number: CN215176326U
Application number: CN202121474576.3U
Authority: CN
Inventors: 刘玉民; 蔡金伶; 干锦波; 孙彬; 李腾昌
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-14
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to the technical field of refrigeration equipment, and discloses a refrigerator, which comprises a box body, an evaporator bin and an air duct component; the air duct component comprises an air duct plate, a fan, an air door and a variable-temperature return air pipe; a first air channel and a second air channel which are communicated with each other and provided with air doors at the communicated positions are formed in the air channel plate; a fan is arranged in the first air duct, a main air inlet of the first air duct is communicated with the air supply pipe, and a main air outlet of the first air duct is communicated with the return air pipe of the evaporator bin; the first air duct is respectively provided with a first air inlet and a first air outlet which are communicated with the freezing chamber; the second air duct is provided with a second air inlet communicated with the temperature-changing chamber, and the air duct plate is provided with a second air outlet communicated with the temperature-changing chamber; one end of the variable-temperature air return pipe is communicated with the second air outlet, and the other end of the variable-temperature air return pipe is communicated with the air return pipe of the evaporator bin. This application has set up independent alternating temperature return air pipe and has sent alternating temperature return air directly to the evaporimeter bottom, has increased alternating temperature room defrosting reliability, can effectively solve the return air pipe problem of freezing under the alternating temperature room normal temperature sets up.

Description

A kind of refrigerator

Technical Field

The utility model relates to a refrigeration plant technical field especially relates to a refrigerator.

Background

The refrigerator with the wide-range temperature-changing chamber can realize the function of freely adjusting the refrigerating temperature from 5 ℃ to the freezing temperature of minus 18 ℃ one by one, and well meets the storage requirements of users on different temperatures of food placed in a single chamber.

Because the height of the temperature-changing chamber is generally small, an evaporator and a fan are not arranged in space, and because the lowest temperature of the temperature-changing chamber needs to be lowered to-18 ℃, the temperature-changing chamber and a refrigerating chamber can not share one set of refrigerating system in the temperature control range, therefore, in the space design, the temperature-changing chamber and the refrigerating chamber share one set of refrigerating system, and the temperature of the temperature-changing chamber is controlled by utilizing the intelligent start and stop of an air door and the fan.

However, the temperature-changing chamber and the freezing chamber share one set of refrigeration system, that is, the temperature-changing chamber and the freezing chamber share one air duct, a freezing evaporator and a freezing fan. Due to the heat convection caused by the operation of the refrigerating fan and the heat transfer of the refrigerating evaporator, the temperature of the return air pipeline is very low in the refrigerating stage. When the temperature-changing chamber is set to be at the positive temperature, high-temperature and high-humidity moisture in return air is easy to separate out in a pipeline and is condensed into ice, so that the temperature-changing refrigeration system is invalid and blocks an air channel.

Thus, improvements in the prior art are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a refrigerator to solve the refrigerator of prior art bandwidth width change room, when one set of refrigerating system of change room and freezer sharing, when the change room sets up the normal temperature, the high temperature high humidity moisture in the return air very easily separates out at the pipeline, condenses into ice, blocks up the technical problem in wind channel.

In order to achieve the above object, the present invention provides a refrigerator, including:

the box body comprises a shell and an inner container; the inner container is arranged in the shell, a partition plate is arranged at a preset position in the inner container, and the inner container is divided into a temperature-changing chamber and a freezing chamber;

the evaporator bin is arranged in the shell, an evaporator is arranged in the evaporator bin, and the evaporator bin is provided with an air supply pipe and an air return pipe;

the air duct assembly is arranged in the inner container and comprises an air duct plate, a fan, an air door and a variable-temperature return air pipe;

the air duct plate is arranged in the inner container, and a first air duct and a second air duct which are communicated with each other are formed in the air duct plate; the air door is arranged at the communication position of the first air duct and the second air duct;

the fan is arranged in the first air duct, a total air inlet of the first air duct is communicated with the air supply pipe, and a total air outlet of the first air duct is communicated with the air return pipe; the first air duct is respectively provided with a first air inlet and a first air outlet which are communicated with the freezing chamber;

the second air duct is provided with a second air inlet communicated with the temperature-changing chamber, and the air duct plate is provided with a second air outlet communicated with the temperature-changing chamber;

one end of the variable-temperature air return pipe is communicated with the second air outlet, and the other end of the variable-temperature air return pipe is communicated with the air return pipe.

In some embodiments of the present application, a foaming layer is disposed between the outer shell and the inner container, and the variable-temperature return air pipe is located in the foaming layer.

In some embodiments of the present application, the duct panel comprises a front cover plate, a duct foam plate, and a rear cover plate; the front cover plate and the rear cover plate can be buckled and connected, and the air duct foam plate is positioned between the front cover plate and the rear cover plate;

a first air inlet hole and a first air outlet hole are formed in the position, corresponding to the freezing chamber, of the front cover plate, and a second air inlet hole and a second air outlet hole are formed in the position, corresponding to the temperature-variable chamber, of the front cover plate;

a first groove and a second groove which are communicated with each other are formed on the air duct foam plate so as to be matched with the rear cover plate to form the first air duct and the second air duct correspondingly;

openings are formed in the first groove at positions corresponding to the first air inlet and the first air outlet, and the fan is arranged in the first groove; an opening is formed in the position, corresponding to the second air inlet hole, of the second groove; a first air return hole is formed in the position, corresponding to the second air outlet hole, of the air duct foam plate; and a second air return hole is formed in the position, corresponding to the first air return hole, of the rear cover plate.

In some embodiments of the present application, the duct panel further comprises a sealing foam panel;

a step structure with two sides higher than the middle part is arranged at the communication position of the first groove and the second groove, and the air door is embedded in the middle part of the step structure; and a positioning part matched with the step structure is arranged on the side surface of the sealing foam board facing the second groove, so that the sealing foam board can cover the second groove to form a sealing air duct.

In some embodiments of the present application, the duct panel further comprises a heating wire; the heating wire is attached to the rear surface of the front cover plate and is positioned at a position corresponding to the temperature-changing chamber.

In some embodiments of the present application, the duct panel further comprises a sponge seal; the sponge sealing piece is attached to the rear surface of the rear cover plate, and a third air return hole is formed in the position, corresponding to the second air return hole, of the sponge sealing piece.

In some embodiments of the present application, the front surface of front shroud is equipped with protruding muscle, the rear end face of baffle be equipped with can with protruding muscle forms interference fit's assembly portion, make the baffle with the front shroud forms interference fit.

In some embodiments of the present application, the variable temperature chamber is located at an upper portion, and the freezing chamber is located at a lower portion;

the first air duct is in an inverted U shape, the fan is positioned in the middle of the first air duct, and the first air inlet and the first air outlet are respectively arranged on two sides of the inverted U shape;

the second air duct is communicated with the upper part of one side of the first air duct, and the second air outlet hole is positioned on the upper part of the other side of the first air duct.

In some embodiments of the present application, the evaporator chamber is disposed in the outer shell and behind the inner container.

In some embodiments of the present application, the box body includes two inner containers, a refrigerating chamber is defined in the inner container located at an upper portion, and the variable temperature chamber and the freezing chamber are defined in the inner container located at a lower portion.

The embodiment of the utility model provides a refrigerator compares with prior art, and its beneficial effect lies in:

the utility model discloses refrigerator has set up independent alternating temperature return air pipe, directly sends alternating temperature return air to the evaporimeter bottom, accomplishes the refrigeration wind in alternating temperature room, has increased alternating temperature room defrosting reliability, can effectively solve the return air pipe problem of freezing under the alternating temperature room normal temperature setting.

Drawings

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

Fig. 1 is a schematic front view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a schematic front view of the internal structure of the refrigerator according to the embodiment of the present invention;

fig. 3 is a schematic rear view of the refrigerator according to the embodiment of the present invention;

fig. 4 is a schematic side view of the refrigerator according to the embodiment of the present invention;

FIG. 5 is an exploded view of the air chute assembly;

FIG. 6 is a front view of the front cover plate;

FIG. 7 is a rear view of the duct foam deck;

FIG. 8 is a rear perspective, axial view of the duct foam deck;

FIG. 9 is a schematic view of the structure of a sealed foam panel;

in the figure, 100, a box body; 101. a housing; 102. an inner container; 110. a refrigerating chamber; 120. a temperature-variable chamber; 130. a freezing chamber; 140. an evaporator bin; 200. a box door; 300. a partition plate;

400. an air duct assembly; 410. a front cover plate; 411. a first air inlet hole; 412. a first air outlet; 413. a second air inlet hole; 414. a second air outlet hole; 415. a rib is protruded; 420. an air duct foam board; 421. a first groove; 422. a second groove; 423. a first return vent; 424. a step structure; 430. a rear cover plate; 440. sealing the foam board; 441. a positioning part; 450. heating wires; 460. a sponge seal; 470. a fan; 480. a damper; 490. a temperature-changing return air pipe.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

In the description of the present application, 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 in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any 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 application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to 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; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 4, a refrigerator according to a preferred embodiment of the present invention mainly includes a box body 100 and a door 200.

The box 100 includes a casing 101 and two liners 102, and the liners 102 are disposed in the casing 101. The inner container 102 positioned at the upper portion defines a refrigerating compartment 110, and the refrigerating compartment 110 is provided with left and right side-by-side split doors 200. A partition 300 is provided at a predetermined position in the lower inner container 102 to partition the inner container 102 into an upper temperature-varying chamber 120 and a lower freezing chamber 130, and both the temperature-varying chamber 120 and the freezing chamber 130 may be provided with a drawer type structure.

The evaporator bin 140 is disposed in the casing 101 and behind the inner container 102, and an evaporator is disposed therein. The evaporator chamber 140 has a blast pipe (not shown) at the upper part thereof and a return pipe (not shown) at the bottom thereof. The connection of the evaporator and the refrigeration system components such as the compressor and the condenser and the refrigeration working principle are the prior art, and the description is omitted in the application.

Referring to fig. 5-9, the air duct assembly 400 includes an air duct plate, a fan 470, a damper 480, and a variable temperature return air duct 490.

Specifically, the air duct plate is disposed in the inner container 102, a first air duct and a second air duct are formed in the air duct plate and are communicated with each other, and an air door 480 is disposed at a communication position of the first air duct and the second air duct. The damper 480 is generally an electric damper, and the amount of ventilation between the first air duct and the second air duct is controlled by the open/close state of the damper 480.

A fan 470 is arranged in the first air duct, the total air inlet of the first air duct is communicated with the air supply pipe of the evaporator bin 140, the total air outlet of the first air duct is communicated with the air return pipe of the evaporator bin 140, and the first air duct is respectively provided with a first air inlet and a first air outlet which are communicated with the freezing chamber 130. When the freezing chamber 130 is refrigerated, the cold air in the evaporator bin 140 sequentially enters the freezing chamber 130 through the air supply pipe, the first air duct and the first air inlet, and sequentially returns to the evaporator bin 140 through the first air outlet, the first air duct and the air return pipe, thereby completing the refrigeration air circulation of the freezing chamber 130.

The second air duct is provided with a second air inlet communicated with the temperature-changing chamber 120, the air duct plate is provided with a second air outlet communicated with the temperature-changing chamber 120, one end of the temperature-changing return air pipe 490 is communicated with the second air outlet, and the other end of the temperature-changing return air pipe is communicated with the return air pipe. A foaming layer is arranged between the casing 101 and the inner container 102, and the variable temperature return air pipe 490 can be located in the foaming layer. When the temperature-changing chamber 120 is refrigerating, the air door 480 is controlled to be opened to a proper state according to a preset refrigerating temperature, and cold air blown out from the evaporator bin 140 sequentially passes through the air supply pipe, sequentially passes through the first air duct, the second air duct and the second air inlet, enters the temperature-changing chamber 120, and sequentially passes through the second air outlet, the temperature-changing air return pipe and the air return pipe to return to the evaporator bin 140.

Referring to fig. 5-9, the duct panel specifically includes a front cover plate 410, a duct foam plate 420, a rear cover plate 430, a sealing foam plate 440, a heating wire 450, and a sponge sealing member 460.

The front cover plate 410 and the rear cover plate 430 can be connected in a buckling manner, and the air duct foam plate 420 is located between the front cover plate 410 and the rear cover plate 430.

Referring to fig. 6, a first air inlet hole 411 and a first air outlet hole 412 are formed at a position of the front cover plate 410 corresponding to the freezing chamber 130, and a second air inlet hole 413 and a second air outlet hole 414 are formed at a position corresponding to the temperature-variable chamber 120. The front surface of the front cover plate 410 is provided with a rib 415, and the rear end surface of the partition plate 300 is provided with an assembling portion (not shown) which can form an interference fit with the rib 415, so that the partition plate 300 forms an interference fit with the front cover plate 410 and the two side walls of the inner container 102.

Referring to fig. 7 and 8, a first groove 421 and a second groove 422 are formed on the air duct foam board 420 and are communicated with each other to form a first air duct and a second air duct in cooperation with the rear cover plate 430. The first groove 421 has openings at positions corresponding to the first air inlet 411 and the first air outlet 412, so as to form a first air inlet and a first air outlet respectively communicated with the freezing chamber 130. The blower 470 is disposed in the first recess 421. The second groove 422 is provided with an opening at a position corresponding to the second air inlet hole 413, so as to form a second air inlet communicated with the temperature changing chamber 130.

Referring to fig. 5, a first air return hole 423 is formed in the air duct foam board 420 at a position corresponding to the second air outlet hole 414. The rear cover plate 430 is provided with a second return hole 431 at a position corresponding to the first return hole 423. The sponge sealing member 460 is attached to the rear surface of the rear cover 430, and a third air return hole 461 is disposed at a position of the sponge sealing member 460 corresponding to the second air return hole 431. The second air outlet 414, the first air return hole 423, the second air return hole 431 and the third air return hole 461 together form a second air outlet communicated with the temperature varying chamber 120.

Referring to fig. 7-9, an air door 480 is disposed at a communication position between the first recess 421 and the second recess 422, a step structure 424 is disposed at an installation position of the air door 480, that is, the middle portion sinks, both sides of the step structure are higher than the middle portion, and the air door 480 is embedded at the middle sink of the step structure 424. The side of the sealing foam board 440 facing the second groove 422 is provided with a positioning portion 441 engaged with the step structure 424, so that the sealing foam board 440 can cover the second groove 422, as shown in fig. 5, to form a sealed second air duct with the air duct foam board 420, without being affected by the installation state of the rear cover board 430, thereby ensuring that the second air duct and the first air duct can only ventilate through the air door 480. The air duct structure formed by the air door 480, the step structure 424, the sealing foam plate 440 and the like solves the problems of refrigeration and sealing under a freezing and temperature-changing common air duct, and can efficiently prevent the air pressure generated by the fan 470 during operation from permeating to the direction of the temperature-changing chamber after the air door 480 is closed, thereby ensuring the refrigeration independence and the temperature control reliability of the temperature-changing chamber.

Referring to fig. 7, the first air duct (the first groove 421) may be in an inverted U shape, the fan 470 is located in the middle of the first air duct, and the first air inlet and the first air outlet are respectively disposed on two sides of the inverted U shape. The second air duct (the second groove 422) is communicated with the upper part of one side of the first air duct, and the second air outlet 414 is positioned on the upper part of the other side of the first air duct. The air duct structure with reasonable design can make the air circulation more efficient.

Referring to fig. 5, a heating wire 450 is attached to the rear surface of the front cover plate 410 and located at a position corresponding to the temperature-changing chamber 120, for rapidly increasing the temperature of the temperature-changing chamber 120, and preventing the compartment from freezing food due to too slow temperature rise due to heat preservation.

To sum up, the utility model provides a refrigerator compares with prior art, includes following beneficial effect at least:

firstly, the defrosting reliability of the temperature-variable chamber is high. The application has set up independent alternating temperature return air pipe 490, with alternating temperature return air direct delivery to the evaporimeter bottom, accomplished the refrigeration wind circulation of alternating temperature room 120. Compared with the existing scheme of integrating the variable-temperature return air into the freezing air duct, the defrosting reliability of the variable-temperature chamber 120 is improved, and the problem of icing of the return air duct under the normal-temperature setting of the variable-temperature chamber 120 can be effectively solved. Furthermore, the variable-temperature return air pipe 490 is arranged in the foaming layer, so that the design difficulty of the freezing air duct can be effectively simplified.

Secondly, the temperature-changing air supply duct has good sealing performance. This application sinks through the air door, and sets up step type assembly to and increase a sealed foam, increased the sealing reliability in alternating temperature air supply wind channel by a wide margin, avoid leading to the sealing quality fluctuation in alternating temperature air supply wind channel because of back shroud 430 warp or assembly problem.

Thirdly, the whole air duct has good sealing performance and high air circulation efficiency. The wind channel in the wind channel subassembly is rational in infrastructure and the leakproofness is good to can high-efficient refrigeration, make whole variable temperature chamber 120 can not rely on the heat of compensation heater strip to maintain variable temperature chamber 120's positive temperature control, the setting of compensation heater strip only adjusts to positive temperature time room temperature return slow scheduling problem for solving variable temperature chamber 120 temperature by the negative temperature, thereby helps reducing the energy consumption.

Fourthly, the assembly is reliable and convenient. According to the air duct system, screw assembly of the air duct is omitted, the air duct (the front cover plate 410) is in interference fit with the variable-temperature partition plate, assembly stress of the air duct and the variable-temperature partition plate and assembly stress of the air duct and the box body are increased, the sealing performance of the air duct system is improved, and reliable assembly can be completed without fixing the air duct by screws.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A refrigerator, characterized by comprising:

the air duct assembly comprises an air duct plate, a fan, an air door and a variable-temperature return air pipe;

2. The refrigerator as claimed in claim 1, wherein a foaming layer is disposed between the outer casing and the inner container, and the temperature varying return duct is disposed in the foaming layer.

3. The refrigerator of claim 1, wherein the duct panel comprises a front cover plate, a duct foam plate, and a rear cover plate; the front cover plate and the rear cover plate can be buckled and connected, and the air duct foam plate is positioned between the front cover plate and the rear cover plate;

4. The refrigerator of claim 3, wherein the duct panel further comprises a sealing foam panel;

5. The refrigerator of claim 3, wherein the duct plate further comprises a heating wire; the heating wire is attached to the rear surface of the front cover plate and is positioned at a position corresponding to the temperature-changing chamber.

6. The refrigerator of claim 3, wherein the duct panel further comprises a sponge seal; the sponge sealing piece is attached to the rear surface of the rear cover plate, and a third air return hole is formed in the position, corresponding to the second air return hole, of the sponge sealing piece.

7. The refrigerator as claimed in claim 3, wherein a rib is provided on a front surface of the front cover plate, and a fitting portion capable of forming an interference fit with the rib is provided on a rear end surface of the partition plate, so that the partition plate and the front cover plate form an interference fit.

8. The refrigerator of claim 3, wherein the temperature varying chamber is located at an upper portion, and the freezing chamber is located at a lower portion;

9. The refrigerator of claim 1 wherein said evaporator bin is disposed within said outer shell and behind said inner container.

10. The refrigerator as claimed in claim 1, wherein the cabinet includes two inner containers, the inner container positioned at an upper portion defines a refrigerating chamber, and the inner container positioned at a lower portion defines the temperature varying chamber and the freezing chamber.