CN110906600A

CN110906600A - Isolating device and refrigerator

Info

Publication number: CN110906600A
Application number: CN201911128243.2A
Authority: CN
Inventors: 何伟; 刘兆雷; 唐义亭; 王路鹏; 舒宁
Original assignee: TCL Home Appliances Hefei Co Ltd
Current assignee: TCL Home Appliances Hefei Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-03-24
Anticipated expiration: 2039-11-18
Also published as: CN110906600B

Abstract

The invention relates to an isolation device and a refrigerator. The isolation device is used for being connected to the installation support plate and comprises a driving assembly, a first partition plate, a traction connecting piece and a second partition plate, wherein the driving assembly is used for being connected to the installation support plate, the first partition plate is connected to the driving assembly, the first partition plate is used for corresponding to the first ventilation opening and used for opening and closing the first ventilation opening, and the driving assembly is used for driving the first partition plate to move relative to the installation support plate; the traction connecting piece is connected with the first clapboard; the second baffle is connected in drawing the connecting piece, and the second baffle is used for corresponding to the second ventilation opening to be used for the switching second ventilation opening, when first baffle closed first ventilation opening, the second ventilation opening is closed to the second baffle, and when first baffle opened first ventilation opening, the second ventilation opening was opened to the second baffle. The first ventilation opening and the second ventilation opening are respectively closed through the isolating device, so that heat generated by defrosting on the surface of the evaporator cannot enter the inner container, and the effect of saving the energy consumption of the refrigerator is achieved.

Description

Isolating device and refrigerator

Technical Field

The invention relates to the technical field of refrigerators, in particular to an isolating device and a refrigerator.

Background

A first ventilation opening and a second ventilation opening are formed in an installation support plate of an inner container of the air-cooled refrigerator respectively, the first ventilation opening is used for supplying air, and the second ventilation opening is used for returning air. The working principle of the air-cooled refrigerator is that an evaporator in an inner container generates cold air, a fan blows the cold air to a cold air storage cavity of the refrigerator through a first vent along an air supply channel, and the cold air returns to the evaporator from a second vent so as to finish the circulating flow of the cold air.

After the air-cooled refrigerator runs for a period of time, because the surface temperature of the evaporator is far lower than the air temperature in the cold air storage cavity during refrigeration, the surface of the evaporator can frost. When the frost layer on the surface of the evaporator reaches a certain thickness, the evaporator needs to be defrosted. The evaporator melts the frost on the surface of the evaporator by means of electric heating. The heat generated during defrosting can enter the cold air storage cavity of the refrigerator through the first ventilation opening and the second ventilation opening respectively to cause the temperature of the cold air storage cavity to rise, thereby prolonging the refrigerating operation time of the refrigerator and causing the power consumption of the refrigerator to increase.

Disclosure of Invention

Accordingly, it is desirable to provide an isolation device and a refrigerator for solving the problems of temperature rise of a compartment and increase of power consumption caused by the defrosting heat of an evaporator entering the compartment of the refrigerator.

An isolation device is used for being connected to a mounting support plate and comprises a first partition plate, a traction connecting piece and a second partition plate of a driving assembly, wherein the driving assembly is used for being connected to the mounting support plate, the first partition plate is connected to the driving assembly, the first partition plate is used for corresponding to a first ventilation opening of the mounting support plate so as to be used for opening and closing the first ventilation opening, and the driving assembly is used for driving the first partition plate to move relative to the mounting support plate; the traction connecting piece is connected to the first partition plate; the second partition plate is connected to the traction connecting piece and used for corresponding to a second ventilation opening of the mounting support plate so as to open and close the second ventilation opening; when the first partition board closes the first ventilation opening, the second partition board closes the second ventilation opening, and when the first partition board opens the first ventilation opening, the second partition board opens the second ventilation opening.

In one embodiment, the driving assembly includes a driving motor and a connecting shaft, the connecting shaft is connected to a motor shaft of the driving motor, and the first partition plate is connected to the connecting shaft, so that the first partition plate is connected to the driving assembly. The connecting shaft is driven to rotate by the driving motor, so that the first partition plate can be driven to rotate by the connecting shaft.

In one embodiment, the connecting shaft is used for being rotatably connected to the mounting support plate. The connecting shaft is fixed in an auxiliary mode through the mounting support plate, and the stability of the connecting shaft in the rotating process is kept.

In one embodiment, the drive assembly further comprises a drive gear and a driven gear; the connecting shaft comprises a driving shaft and a driven shaft, the driving shaft is connected to a motor shaft of the driving motor, the driving shaft is sleeved with the driving gear, the driven shaft is sleeved with the driven gear, and the driven gear is meshed with the driving gear. The driving shaft drives the driven shaft to rotate through gear transmission between the driven gear and the driving gear.

In one embodiment, the first partition plate includes a first sub-partition plate and a second sub-partition plate, the driving shaft is connected to the first sub-partition plate, and the driven shaft is connected to the second sub-partition plate. The driving shaft drives the first sub-partition plate and the driven shaft to move, and the driven shaft drives the second sub-partition plate to move, so that the synchronism of the first sub-partition plate and the second sub-partition plate during movement is kept.

In one embodiment, the first partition board is provided with a first traction connecting hole, the second partition board is provided with a second traction connecting hole, one end of the traction connecting piece is arranged through the first traction connecting hole and connected with the first partition board, and the other end of the traction connecting piece is arranged through the second traction connecting hole and connected with the second partition board. The two ends of the traction connecting piece are respectively connected with the first partition board and the second partition board, so that the second partition board moves along with the movement of the first partition board through the traction connecting piece.

In one embodiment, one end of the traction connecting piece is provided with a first limiting part, the other end of the traction connecting piece is provided with a second limiting part, the first limiting part is correspondingly connected to the first traction connecting hole, and the second limiting part is correspondingly connected to the second traction connecting hole. The first limiting part is connected with the first traction connecting hole, and the second limiting part is connected with the second traction connecting hole, so that the traction connecting piece is respectively connected with the first partition board and the second partition board.

A refrigerator comprises an inner container, an installation support plate and the isolating device of any one of the embodiments, wherein the installation support plate is arranged in the inner container, the installation support plate is provided with a first ventilation opening and a second ventilation opening, the first partition plate corresponds to the first ventilation opening to open and close the first ventilation opening, and the second partition plate corresponds to the second ventilation opening to open and close the second ventilation opening; the isolation device is arranged on the installation support plate.

In one embodiment, the refrigerator further comprises an evaporator and a temperature measuring element, the evaporator and the temperature measuring element are both arranged in the inner container, the temperature measuring element is used for measuring the temperature of the evaporator, and the driving assembly drives the first partition plate and the second partition plate to be opened and closed according to the temperature of the evaporator measured by the temperature measuring element. The temperature of the evaporator is measured by the temperature measuring element, so that the isolation device is opened or closed according to the working temperature of the evaporator.

In one embodiment, the mounting support plate is provided with a limiting sliding groove, and the traction connecting piece is arranged in the limiting sliding groove in a penetrating mode and is connected with the mounting support plate in a sliding mode. The limit sliding groove is arranged to limit the moving track of the traction connecting piece, so that the accuracy of the traction connecting piece in the process of drawing the second partition board to move is maintained.

According to the isolating device and the refrigerator, the first partition plate of the isolating device is used for closing or opening the first air vent, the second partition plate is used for closing or opening the second air vent, the driving assembly drives the first partition plate to move, and the first partition plate pulls the second partition plate to move through the traction connecting piece, so that the first partition plate and the second partition plate move simultaneously. When the first ventilation opening is closed by the first partition plate, the second ventilation opening is closed by the second partition plate, so that heat generated when the evaporator is defrosted can be closed to enter the inner container, the temperature rise after the heat enters the inner container of the refrigerator is avoided, the temperature of the inner container is kept stable, and the effect of saving the energy consumption of the refrigerator is achieved.

Drawings

Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment;

FIG. 2 is an exploded view of the refrigerator shown in FIG. 1;

FIG. 2a is a partial schematic view of the refrigerator shown in FIG. 2;

FIG. 2b is a schematic view of an assembled state of the refrigerator shown in FIG. 2 a;

FIG. 3 is a schematic view of another perspective of the isolating device of the refrigerator shown in FIG. 2 b;

FIG. 4 is an enlarged view of a portion of the isolation device shown in FIG. 3 at A;

FIG. 5 is an enlarged view of a portion of the isolation device shown in FIG. 3 at B;

FIG. 6 is a schematic structural view of a mounting bracket of the refrigerator shown in FIG. 2 b;

FIG. 7 is an enlarged partial view of the mounting bracket of FIG. 6 at C;

fig. 8 is a schematic view of another state of the isolation device shown in fig. 3.

Detailed Description

To facilitate an understanding of the present invention, the isolation device and refrigerator will be described more fully with reference to the accompanying drawings. Preferred embodiments of the isolation device and refrigerator are shown in the drawings. However, the isolation device and refrigerator may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the isolation device and the refrigerator is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, a refrigerator 70 according to an embodiment includes an inner container 20, a mounting support plate 30, and an isolation device 10, where the mounting support plate 30 is disposed in the inner container 20, and the isolation device 10 is disposed on the mounting support plate 30. In the present embodiment, the mounting plate 30 is positioned within the inner bladder 20 and is connected to the inner bladder 20. In one embodiment, the mounting plate 30 defines a first vent 310 and a second vent 320, and the isolation device 10 is used for simultaneously closing or opening the first vent 310 and the second vent 320.

As shown in fig. 2a, 2b and 3, in one embodiment, the isolation device 10 includes a driving assembly 110, a first partition 120, a traction connector 130 and a second partition 140, the driving assembly 110 is configured to be connected to the mounting plate 30, the first partition 120 is connected to the driving assembly 110, the first partition 120 is configured to correspond to the first ventilation opening 310 for opening and closing the first ventilation opening 310, and the driving assembly 110 is configured to drive the first partition 120 to move relative to the mounting plate 30. The towing attachment 130 is attached to the first bulkhead 120. The second partition plate 140 is connected to the drawing connection member 130, and the second partition plate 140 corresponds to the second ventilation opening 320 to open and close the second ventilation opening 320. The second partition 140 closes the second ventilation opening 320 when the first partition 120 closes the first ventilation opening 310, and the second partition 140 opens the second ventilation opening 320 when the first partition 120 opens the first ventilation opening 310.

The first partition 120 closes or opens the first ventilation opening 310 by the movement of the first partition 120 driven by the driving assembly 110. The first partition plate 120 pulls the second partition plate 140 to move synchronously through the pulling connection member 130, the second partition plate 140 acts with the first partition plate 120, and the second partition plate 140 closes or opens the second ventilation opening 320.

In one embodiment, as shown in fig. 3, the driving assembly 110 includes a driving motor 111 and a connecting shaft 112. The connecting shaft 112 is connected to a motor shaft of the driving motor 111, and the first partition 120 is connected to the connecting shaft 112 such that the first partition 120 is connected to the driving assembly 110. The driving motor 111 drives the connecting shaft 112 to rotate, so that the connecting shaft 112 drives the first partition 120 to rotate. In the present embodiment, the housing of the driving motor 111 is screwed to the mounting stay 30 by screws. It is understood that in other embodiments, the housing of the drive motor 111 may also be welded or glued to the mounting plate 30. Referring to fig. 4, in one embodiment, the first partition 120 is provided with a connecting protrusion 121, the connecting protrusion 121 is provided with a connecting through hole 122, the connecting shaft 112 is inserted into the connecting through hole 122, and the connecting shaft 112 is fixedly connected to the first partition 120 through the connecting protrusion 121.

As shown in fig. 3 and 4, in one embodiment, the connecting shaft 112 is tightly inserted into the connecting through hole 122, so that the connecting shaft 112 and the first partition 120 cannot move relatively, thereby ensuring that the connecting shaft 112 drives the first partition 120 to rotate accurately. In other embodiments, the connecting through hole can be replaced by a threaded hole, and the shaft body of the connecting shaft is provided with threads, and the connecting shaft is in threaded connection with the first partition plate through the connecting through hole. It will be appreciated that the connecting vias may be omitted. In other embodiments, the connecting shaft may be connected with the first partition plate by other fixed connection methods. In one embodiment, the connecting shaft is bonded to the first partition plate by an adhesive agent, so that the connecting shaft is connected to the first partition plate. In this embodiment, driving motor can be step motor, through the rotation angle of the accurate control motor shaft of step motor to drive the accurate certain angle that rotates of first baffle, realize the accurate control of the corner of first baffle.

In one embodiment, the connecting shaft may be connected to a motor shaft of the driving motor by a coupling. When the driving motor drives, the motor shaft drives the connecting shaft to rotate. In other embodiments, the connecting shaft may be omitted, i.e. the first partition is connected to the motor shaft.

In one embodiment, as shown in fig. 2a, 3 and 4, the connecting shaft 112 is rotatably connected to the mounting plate 30, so that the rotating process of the connecting shaft is smoother. As shown in fig. 5 to 7, in one embodiment, the mounting plate 30 is provided with a mounting protrusion 331, and the mounting protrusion 331 is provided with a limiting through hole 330. One end of the connecting shaft 112, which is far away from the motor shaft of the driving motor 111, penetrates through the limiting through hole 330, and the connecting shaft 112 can rotate in the limiting through hole 330. In one embodiment, the hole center of the limiting through hole 330 is on the same axis as the shaft center of the motor shaft of the driving motor 111, and the mounting protrusion 331 supports and limits the moving range of the connecting shaft 112, so that the connecting shaft 112 and the motor shaft are kept rotating on the same axis, the connecting shaft 112 is prevented from being inclined due to the reaction force when the second partition plate 140 is pulled, the connecting shaft 112 is assisted and fixed, and the stability of the connecting shaft 112 during rotation is kept.

In one embodiment, as shown in fig. 3 and 4, the connecting shaft 112 includes a driving shaft 113 and a driven shaft 114, the driving assembly 110 further includes a driving gear 115 and a driven gear 116, the driving shaft 113 is connected to a motor shaft of the driving motor 111, the driving gear 115 is sleeved on the driving shaft 113, the driven gear 116 is sleeved on the driven shaft 114, and the driven gear 116 is meshed with the driving gear 115. Through gear transmission, the driving shaft 113 drives the driven shaft 114 to rotate, so that the installation structure is simplified, and the synchronism of motion between each plate body is kept.

In one embodiment, as shown in fig. 4, the number of the mounting protrusions 331 of the mounting plate 30 is two, and each mounting protrusion 331 is provided with a limiting through hole. The driving shaft 113 penetrates through the limit through hole 330 of one of the mounting lugs 331, the driven shaft 114 penetrates through the limit through hole 330 of the other mounting lug 331, and the driving shaft 113 and the driven shaft 114 are supported and limited by the corresponding mounting lugs 331 respectively to keep the axial center of the driving shaft 113 and the driven shaft 114 stable during rotation. In one embodiment, the number of the mounting protrusions 331 is one, two limiting through holes 330 are formed in the mounting protrusions 331, one of the limiting through holes 330 is penetrated by the driving shaft 113, and the other limiting through hole 330 is penetrated by the driven shaft 114.

In one embodiment, as shown in fig. 3 and 4, the first barrier 120 includes a first sub-barrier 120A and a second sub-barrier 120B, the driving shaft 113 is connected to the first sub-barrier 120A, and the driven shaft 114 is connected to the second sub-barrier 120B. The first sub-barrier 120A and the driven shaft 114 are driven by the driving shaft 113, and the second sub-barrier 120B is driven by the driven shaft 114, so as to maintain the synchronism of the first sub-barrier 120A and the second sub-barrier 120B during the movement.

In one embodiment, the shape of the first baffle 120A is adapted to the shape of the first vent 310. The first partition 120A may be divided into a plurality of sub-panels, and the shape of the sub-panels is adapted to the shape of the first ventilation opening 310. In the present embodiment, as shown in fig. 2 and 3, when the first ventilation openings 310 are circular, the first barrier 120 is circular.

As shown in fig. 3 and 4, in one embodiment, the first sub-diaphragm 120A has a semicircular shape, the second sub-diaphragm 120B has a semicircular shape, and the first sub-diaphragm 120A and the second sub-diaphragm 120B are joined together to form a circular shape. The driving shaft 113 and the driven shaft 114 are respectively disposed at the joint of the first sub-partition 120A and the second sub-partition 120B, and the driving shaft 113 and the driven shaft 114 are located at the joint and rotate, so as to drive the first sub-partition 120A and the second sub-partition 120B to unfold, lay flat or fold together. When the first ventilation opening 310 needs to be closed, the driving shaft 113 and the driven shaft 114 rotate relatively by a certain angle, the first sub-partition board 120A and the second sub-partition board 120B rotate correspondingly, the first sub-partition board 120A and the second sub-partition board 120B are unfolded towards two sides respectively until the first sub-partition board 120A and the second sub-partition board 120B are located on the same plane, so that the first sub-partition board 120A and the second sub-partition board 120B are spliced to form a circle, and then the first ventilation opening 310 can be closed. When the first ventilation opening 310 needs to be opened, the driving shaft 113 and the driven shaft 114 rotate reversely by a certain angle, the first sub-partition 120A and the second sub-partition 120B rotate correspondingly and reversely, and both the first sub-partition 120A and the second sub-partition 120B are folded inwards, so that the first ventilation opening 310 can be opened.

It is understood that in other embodiments, when the first ventilation openings 310 are square, the first partition 120 is also square. Or the first barrier 120 may be formed in a square shape by combining a plurality of sub-barriers.

In one embodiment, as shown in fig. 3 to 5, the first partition plate 120 is provided with a first pulling connection hole 124, the second partition plate 140 is provided with a second pulling connection hole 142, one end of the pulling connection member 130 is connected to the first pulling connection hole 124, and the other end of the pulling connection member 130 is connected to the second pulling connection hole 142, so that the first partition plate 120 is connected to the second partition plate 140 through the pulling connection member 130. In one embodiment, the first partition 120 is provided with a first pulling protrusion 123, and the first pulling protrusion 123 is provided with a first pulling connection hole 124. The second partition 140 is provided with a second traction protrusion 141, and the second traction protrusion 141 is provided with a second traction connection hole 142. In one embodiment, the second partition 140 is provided with a second pulling protrusion 141, and the second pulling protrusion 141 is provided with a second pulling connecting hole 142. One end of the pulling connecting member 130 is movably fastened to the first pulling connecting hole 124, and the other end of the pulling connecting member 130 is movably fastened to the second pulling connecting hole 142, so that both ends of the pulling connecting member 130 are reliably connected to the first partition plate 120 and the second partition plate 140, respectively, and the pulling connecting member 130 can move in the first pulling connecting hole 124 and the second pulling connecting hole 142. The second barrier 140 is moved by the traction link 130 according to the movement of the first barrier 120 by connecting both ends of the traction link 130 with the first barrier 120 and the second barrier 140, respectively.

In one embodiment, as shown in fig. 3 to 5, one end of the pulling link 130 is provided with a first limiting portion 131, the other end of the pulling link 130 is provided with a second limiting portion 132, the first limiting portion 131 corresponds to the first pulling connection hole 124, the second limiting portion 132 corresponds to the second pulling connection hole 142, so that the first limiting portion 131 is connected to the first pulling connection hole 124, and the second limiting portion 132 is connected to the second pulling connection hole 142. Further, the first limiting portion 131 is movably inserted into the first pulling connection hole 124, the second limiting portion 132 is movably inserted into the second pulling connection hole 142, the radial dimension of the first limiting portion 131 is larger than that of the first pulling connection hole 124, and the radial dimension of the second limiting portion 132 is larger than that of the second pulling connection hole 142. By setting the radial dimension of the first limiting portion 131 and the second limiting portion 132 larger than that of the traction connecting hole, the two ends of the traction connecting member 130 are prevented from falling off from the first traction connecting hole 124 and the second traction connecting hole 142 while the traction connecting member 130 moves in the first traction connecting hole 124 and the second traction connecting hole 142, thereby preventing the traction connecting member 130 from being separated from the first partition plate 120 and the second partition plate 140, respectively.

In one embodiment, as shown in fig. 3 to 5, the first barrier 120 includes a first sub-barrier 120A and a second sub-barrier 120B, the driving shaft 113 is connected to the first sub-barrier 120A, and the driven shaft 114 is connected to the second sub-barrier 120B. The number of the traction links 130 is two, a first traction link 130A and a second traction link 130B. One end of the first traction connecting piece 130A is connected to the first sub-partition board 120A, one end of the second traction connecting piece 130B is connected to the second sub-partition board 120B, the other end of the first traction connecting piece 130A and the other end of the second traction connecting piece 130B are both connected to the second partition board 140, so that the first sub-partition board is connected with the second partition board through the first traction connecting piece, and the second sub-partition board is connected with the second partition board through the first traction connecting piece. In one embodiment, when the first barrier 120 includes a first sub-barrier 120A and a second sub-barrier 120B, each of the first sub-barrier 120A and the second sub-barrier 120B is provided with a first drawing projection 123. In one embodiment, the first pulling projections 123 on the first sub-diaphragm 120A are symmetrically disposed with respect to the first pulling projections 123 on the second sub-diaphragm 120B. In one embodiment, two second pulling protrusions 141 are disposed on the second partition 140, and the two second pulling protrusions 141 on the second partition 140 are also symmetrically disposed. The first traction connecting piece 130A and the second traction connecting piece 130B are connected with the second partition board 140 in a traction manner, so that the stress of the traction connecting piece 130 is balanced, and the stability of the first sub-partition board 120A and the second sub-partition board 120B in the opening and closing process is ensured.

In one embodiment, one end of the first traction link 130A and one end of the second traction link 130B are each provided with a first limiting portion 131, and the other end of the first traction link 130A and the other end of the second traction link 130B are each provided with a second limiting portion 132. The first position-limiting portion 131 of the first pulling connecting member 130A corresponds to the first pulling connecting hole 124 of the first sub-barrier 120A, and the second position-limiting portion 132 of the first pulling connecting member 130A corresponds to one of the second pulling connecting holes 142 of the second barrier 140. The first position-limiting portion 131 of the second pulling connecting member 130B corresponds to the first pulling connecting hole 124 of the second sub-partition 120B, and the second position-limiting portion 132 of the second pulling connecting member 130B corresponds to the other second pulling connecting hole 142 of the second partition 140, so that the first pulling connecting member 130A is prevented from being separated from the first sub-partition 120A and the second partition 140, and the second pulling connecting member 130B is prevented from being separated from the second sub-partition 120B and the second partition 140.

In one embodiment, the traction link 130 may be a steel cable to ensure its own tensile strength and avoid breakage. The number of the traction links 130 is determined according to the number of the partitions at the traction force application end, for example, the first partition 120 is connected to the driving assembly 110, the driving assembly 110 drives the first partition 120 to move, and the second partition 140 moves along with the movement of the first partition 120, in which case, the first partition 120 is the traction force application end. In this embodiment, the first partition 120 is divided into two sub-partitions, i.e., a first sub-partition and a second sub-partition, and the number of the traction links 130 is two. It is understood that in other embodiments, the first partition may not be limited to being divided into two sub-partitions. In one embodiment, when the first partition 120 is divided into three or more sub-partitions, the number of the traction links 130 is three or more.

In one embodiment, as shown in fig. 2b, fig. 6 and fig. 7, the mounting support plate 30 of the refrigerator further defines a limiting sliding groove 340, and the traction connecting member 130 is inserted through the limiting sliding groove 340 and slidably connected to the mounting support plate 30. In one embodiment, at least one limiting wall 341 is further disposed in the channel where the limiting sliding groove 340 is located, the limiting wall 341 is provided with a limiting sliding hole 342, and the traction connecting member 130 penetrates through the limiting sliding hole 342 and moves in the limiting sliding groove 340. The sliding track of the traction connecting piece 130 is limited by the limiting sliding groove 340, so that the accuracy of the track when the second partition plate 140 is subjected to traction movement is ensured.

In one embodiment, as shown in fig. 6 and 7, the mounting plate 30 is provided with a pulling limiting projection 350, the pulling limiting projection 350 is located on the side of the first ventilation opening 310, and the pulling limiting projection 350 is provided with a pulling limiting hole 351. The traction connecting piece 130 penetrates through the traction limiting hole 351, so that the sliding track of the traction connecting piece 130 is further limited, and the accuracy of the traction track is ensured.

In one embodiment, as shown in fig. 2b, when the first ventilation opening 310 and the second ventilation opening 320 of the mounting plate 30 need to be isolated, the motor shaft of the driving motor 111 rotates, thereby driving the driving shaft 113 to rotate. The driven shaft 114 follows the driving shaft 113 through gear transmission. The driving shaft 113 drives the first sub-partition 120A to rotate by a certain angle, and the driven shaft 114 drives the second sub-partition 120B to rotate by a certain angle until the first sub-partition 120A and the second sub-partition 120B are respectively unfolded and spliced to form a circle. The first traction connecting piece 130A and the second traction connecting piece 130B move along with the first sub-partition board 120A and the second sub-partition board 120B, and the positions of the first traction connecting piece 130A and the second traction connecting piece 130B after moving have a fall compared with the initial positions, that is, the first traction connecting piece 130A and the second traction connecting piece 130B move downwards, and the second partition board 140 drawn by the first traction connecting piece 130A and the second traction connecting piece 130B moves downwards, so that the second partition board 140 closes the second ventilation opening 320.

In one embodiment, as shown in fig. 8, when the first ventilation opening 310 and the second ventilation opening 320 of the mounting plate 30 need to be opened, the motor shaft of the driving motor 111 rotates in the opposite direction, so as to drive the driving shaft 113 to rotate in the opposite direction. The driven shaft 114 follows the driving shaft 113 to rotate reversely by gear transmission. The driving shaft 113 drives the first sub-partition 120A to rotate reversely by a certain angle, and the driven shaft 114 drives the second sub-partition 120B to rotate reversely by a certain angle until the first sub-partition 120A and the second sub-partition 120B are folded inwards respectively. The first and second pulling

links

130A and 130B move to the initial position following the first and second sub-barriers 120A and 120B, the first and second pulling

links

130A and 130B move up, and the second barrier 140 moves up, thereby exposing the second ventilation opening 320.

Referring again to fig. 2 and 2a, in one embodiment, the refrigerator further includes an evaporator 40 and a temperature measuring element (not shown). The evaporator 40 and the temperature measuring element are both arranged in the inner container 20, the temperature measuring element is used for measuring the temperature of the evaporator 40, and the driving assembly 110 drives the first partition plate 120 and the second partition plate 140 to open and close according to the temperature of the evaporator 40 measured by the temperature measuring element. The temperature of the evaporator 40 is measured by the temperature measuring element, so that the isolation device 10 is turned on or off according to the operating temperature of the evaporator 40. That is, the evaporator 40 is defrosted by means of electric heat, for example, by heating the electric wire. The evaporator 40 stops refrigerating, the evaporator 40 heats up to melt the frost layer on the surface, the temperature measuring element is arranged on one side of the evaporator 40, the temperature measuring element detects the temperature rise of the evaporator 40, when the temperature measured by the temperature measuring element rises to a preset value, the driving assembly 110 drives the first partition plate 120 to close the first ventilation opening 310, and the first partition plate 120 pulls the second partition plate 140 to close the second ventilation opening 320. After defrosting of the evaporator 40 is finished, the evaporator 40 recovers cooling, the temperature of the evaporator 40 is reduced, and when the temperature measured by the temperature measuring element is reduced to a preset value, the driving assembly 110 drives the first partition plate 120 to open the first ventilation opening 310, and the first partition plate 120 pulls the second partition plate 140 to open the second ventilation opening 320.

In one embodiment, the refrigerator further comprises a controller (not shown), the temperature measuring element and the driving assembly 110 of the isolation device 10 are connected to the controller, and the controller controls the driving assembly 110 to drive according to the measured temperature of the temperature measuring element. When the temperature measured by the temperature measuring element reaches a preset value, the temperature measuring element transmits temperature data to the controller. The controller controls the driving assembly 110 to operate, and drives the motor 111 to operate, so that the first partition plate 120 closes the first ventilation opening 310, and the second partition plate 140 closes the second ventilation opening 320, thereby isolating heat during defrosting from entering the cold air storage chamber of the refrigerator from the first ventilation opening 310 and the second ventilation opening 320. When defrosting is finished, the evaporator 40 recovers cooling, and the temperature measuring element detects a temperature drop. When the temperature drops to a preset value, the temperature measuring element transmits temperature data to the controller. The controller controls the driving assembly 110 to operate, and drives the motor 111 to operate, so that the first partition 120 opens the first ventilation opening 310, the second partition 140 opens the second ventilation opening 320, and the cold air enters the cold air storage chamber from the first ventilation opening 310 and the second ventilation opening 320. In this embodiment, the temperature sensing element may be a temperature sensor.

In one embodiment, the refrigerator further includes a mounting cover plate 50 and a fan 60, the mounting cover plate 50 is disposed in the inner container 20 and encloses with the inner sidewall of the inner container 20 to form a mounting accommodating cavity, that is, the inner space of the inner container 20 is partitioned by the mounting cover plate 50 to form the mounting accommodating cavity and a cold air storage cavity. The mounting plate 30 is disposed within the mounting receiving cavity and is coupled to the mounting cover 50. An air duct is formed between the mounting support plate 30 and the inner side wall of the inner container 20. The fan 60 is located in the air duct and connected to the mounting plate 30, the evaporator 40 is also located in the air duct, and the isolation device is disposed on the mounting plate 30.

In one embodiment, as shown in fig. 2, the mounting cover 50 is provided with a supply air outlet 510 and a return air outlet 520, wherein the supply air outlet 510 corresponds to the first ventilation opening 310, and the return air outlet 520 corresponds to the second ventilation opening 320. The evaporator 40 generates cold air, the fan 60 pumps the cold air to the first ventilation opening 310 along the air channel, the cold air enters the cold air storage cavity through the air supply opening 510, and then gradually returns to the evaporator 40 through the air return opening 520 and the second ventilation opening 320, and the cold air completes one cycle. When the surface of the evaporator 40 frosts and needs defrosting, the first ventilation opening 310 and the second ventilation opening 320 are respectively closed through the isolation device 10, so that heat generated by defrosting on the surface of the evaporator 40 cannot enter the cold air storage cavity, the cold air storage cavity is prevented from being heated, and the effect of saving energy consumption is achieved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An isolation device, which is used for being connected to a mounting support plate, and is characterized by comprising a driving component, a first partition plate, a traction connecting piece and a second partition plate, wherein the driving component is used for being connected to the mounting support plate, the first partition plate is connected to the driving component, the first partition plate is used for corresponding to a first ventilation opening of the mounting support plate so as to be used for opening and closing the first ventilation opening, and the driving component is used for driving the first partition plate to move relative to the mounting support plate; the traction connecting piece is connected to the first partition plate; the second partition plate is connected to the traction connecting piece and used for corresponding to a second ventilation opening of the mounting support plate so as to open and close the second ventilation opening; when the first partition board closes the first ventilation opening, the second partition board closes the second ventilation opening, and when the first partition board opens the first ventilation opening, the second partition board opens the second ventilation opening.

2. The isolation device of claim 1, wherein the drive assembly includes a drive motor and a connecting shaft connected to a motor shaft of the drive motor, the first spacer being connected to the connecting shaft such that the first spacer is connected to the drive assembly.

3. The isolation device of claim 2, wherein the connection shaft is pivotally connected to the mounting plate.

4. An isolation device as claimed in claim 3, wherein the drive assembly further comprises a drive gear and a driven gear; the connecting shaft comprises a driving shaft and a driven shaft, the driving shaft is connected to a motor shaft of the driving motor, the driving shaft is sleeved with the driving gear, the driven shaft is sleeved with the driven gear, and the driven gear is meshed with the driving gear.

5. The isolation device of claim 4, wherein the first barrier comprises a first sub-barrier and a second sub-barrier, the driving shaft is connected to the first sub-barrier, and the driven shaft is connected to the second sub-barrier.

6. The isolation device as claimed in claim 1, wherein the first partition board is provided with a first traction connection hole, the second partition board is provided with a second traction connection hole, one end of the traction connection member is inserted into the first traction connection hole and connected with the first partition board, and the other end of the traction connection member is inserted into the second traction connection hole and connected with the second partition board.

7. The isolation device of any one of claims 1 to 6, wherein one end of the traction connecting piece is provided with a first limiting part, the other end of the traction connecting piece is provided with a second limiting part, the first limiting part is correspondingly connected to the first traction connecting hole, and the second limiting part is correspondingly connected to the second traction connecting hole.

8. A refrigerator is characterized by comprising an inner container, an installation support plate and the isolating device as claimed in any one of claims 1 to 7, wherein the installation support plate is arranged in the inner container, the installation support plate is provided with a first ventilation opening and a second ventilation opening, the first partition plate corresponds to the first ventilation opening to open and close the first ventilation opening, and the second partition plate corresponds to the second ventilation opening to open and close the second ventilation opening; the isolation device is arranged on the installation support plate.

9. The refrigerator according to claim 8, further comprising an evaporator and a temperature measuring element, wherein the evaporator and the temperature measuring element are both disposed in the inner container, the temperature measuring element is used for measuring the temperature of the evaporator, and the driving assembly drives the first partition plate and the second partition plate to open and close according to the temperature of the evaporator measured by the temperature measuring element.

10. The refrigerator as claimed in claim 8 or 9, wherein the mounting plate is provided with a limiting sliding groove, and the traction connecting member is inserted into the limiting sliding groove and slidably connected with the mounting plate.