CN111156758B

CN111156758B - A kind of refrigerator

Info

Publication number: CN111156758B
Application number: CN202010105392.3A
Authority: CN
Inventors: 刘铁伟; 李利云; 鲍雨锋
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2021-07-27
Anticipated expiration: 2040-02-20
Also published as: CN111156758A

Abstract

The invention discloses a refrigerator, relates to the technical field of storage devices, and aims to solve the problems of complex structure and high cost caused by the fact that a corresponding control structure is arranged corresponding to each air door of the refrigerator in the prior art. The refrigerator comprises a refrigerator body, wherein an internal storage chamber is divided into a plurality of different temperature areas; the air channel cover plate and the rear wall of the storage chamber form a plurality of ventilation air channels, and the plurality of ventilation air channels correspond to the plurality of temperature areas one to one; the wind screens are arranged at the inlets of the plurality of ventilation air channels, and are in one-to-one correspondence with the inlets of the ventilation air channels; the wind screens are in one-to-one corresponding rotary connection with the main shafts, torque is transmitted between the adjacent main shafts through the transmission mechanism, and the main shafts can drive the corresponding wind screens to rotate when rotating so as to open or close the inlets of the corresponding ventilation air channels; and the driving motor is used for driving the main shaft to rotate. The refrigerator is used for storing food materials.

Description

A kind of refrigerator

Technical Field

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

Background

The refrigerator is a common electric appliance in daily life of people, and along with the improvement of living standard, the performance requirement of people on the refrigerator is higher and higher, wherein the preservation effect of the refrigerator is more important, and the storage temperature is an important factor influencing the preservation effect of the refrigerator.

The storage chamber is divided into a plurality of temperature areas in the refrigerators, air is supplied to each temperature area, the storage temperature of each temperature area is accurately controlled, so that the food materials with different optimal storage temperatures are stored respectively, and the fresh-keeping effect is improved.

However, in this type of refrigerator, the storage temperature of the corresponding temperature region is adjusted by controlling the amount of air supplied by opening and closing the dampers, and the storage temperature of the corresponding temperature region is adjusted by individually controlling the opening and closing of the plurality of dampers by providing a corresponding driving mechanism for each damper in the refrigerator.

Disclosure of Invention

The embodiment of the invention provides a refrigerator, which can respectively control the opening and closing of a plurality of wind shields only by one driving mechanism, has a simple integral structure, is convenient to control, and reduces the integral cost of the refrigerator.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

the embodiment of the invention provides a refrigerator, which comprises a refrigerator body, a refrigerator door and a refrigerator door, wherein a storage chamber is arranged in the refrigerator body, and the storage chamber is divided into a plurality of different temperature areas; the air duct cover plate and the rear wall of the storage chamber form a plurality of ventilation air ducts, and the ventilation air ducts correspond to the temperature areas one by one; the air baffles are arranged at the inlets of the ventilation air channels and used for opening or closing the inlets of the ventilation air channels, the air baffles are provided with a plurality of air baffles and correspond to the inlets of the ventilation air channels one by one, and the edges of the air baffles are fixedly connected with first sleeves; the main shaft is provided with a plurality of first sleeves which correspond to the main shafts one by one and are respectively sleeved on most of the corresponding main shafts, the torque is sequentially transmitted between the plurality of rotating shafts end to end through a transmission mechanism, an included angle is formed between every two adjacent rotating shafts, each main shaft is provided with a shifting block, a second sleeve is sleeved on each shifting block, a notch is formed in each second sleeve, each shifting block is arranged at the notch, the plurality of notches are different in length extending along the circumferential direction of the corresponding second sleeve, the second sleeve is connected with the first sleeve through a clutch assembly, the clutch assembly can enable the corresponding second sleeve to drive the corresponding first sleeve to rotate, so that the corresponding wind shield is driven by the first sleeve to rotate between an opening position and a closing position, and when the wind shield is driven by the first sleeve to rotate to the opening position or the closing position to stop rotating, the clutch component can separate the second sleeve from the first sleeve, and a reset mechanism is arranged in the second sleeve and used for enabling the clutch component to be engaged again; and the driving motor is used for driving one of the main shafts positioned at two ends to rotate.

According to the refrigerator provided by the embodiment of the invention, the wind shields for opening or closing the ventilation air channels are respectively arranged at the inlets of the ventilation air channels in the refrigerator body, the wind shields are rotationally connected with the corresponding main shafts through the first sleeves, and the torque is sequentially transmitted between the main shafts from head to tail through the transmission mechanism, so that any main shaft at two ends is driven to rotate, the main shafts can be driven to rotate completely, and an included angle is formed between the adjacent main shafts, so that the wind shields face different directions respectively, therefore, the inlets of the ventilation air channels can be arranged at the corresponding positions according to the distribution positions of a plurality of temperature areas in the refrigerator body, the length of the ventilation air channels can be shortened, and the air can be conveniently supplied to the interior of the ventilation air channels; and the main shaft is provided with a second sleeve corresponding to each wind shield, the second sleeve can drive the corresponding first sleeve and the wind shield to rotate through the clutch component, and the length of a gap arranged on each second sleeve is different, when the main shaft starts to rotate towards one direction, the second sleeve with the smallest gap firstly rotates along with the main shaft and drives the corresponding first sleeve and the wind shield to rotate, the shifting block of the second sleeve with the larger gap moves in the gap, when the shifting block moves to the end of the length direction of the gap, the corresponding second sleeve can be driven to rotate, after the second sleeve with the smallest gap drives the corresponding wind shield to rotate to the opening position or the closing position to stop rotating, the second sleeve can continue to rotate along with the main shaft through the clutch component, the main shaft cannot be blocked to rotate, then when the main shaft rotates towards the opposite direction, the reset mechanism in the second sleeve can enable the clutch component to be jointed again, thereby make the deep bead rotate to opposite direction once more to the realization is controlled each deep bead respectively and is opened or close the entry of corresponding ventilation duct, control each ventilation duct's air supply volume respectively promptly, the regional storage temperature of the temperature that each ventilation duct of accurate control corresponds, eat the material at the regional different food of storage of different temperatures, improve the fresh-keeping effect of eating the material, and a plurality of deep beads are controlled by same driving motor, overall structure is simple, and control is convenient, and the cost is lower.

Drawings

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

FIG. 2 is a schematic structural view of an internal storage compartment of a refrigerator body according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of the storage chamber partitioned into multiple temperature regions according to the embodiment of the present invention;

FIG. 4 is a schematic diagram of a cover plate structure of an air duct according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an air distributor according to an embodiment of the present invention;

fig. 6 is a schematic view of an internal structure of an air distributor according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a wind deflector, a spindle, a second sleeve, and a clutch assembly according to an embodiment of the present invention;

FIG. 8 is an exploded view of the wind deflector, the spindle, the second sleeve, and the clutch assembly provided in accordance with an embodiment of the present invention;

FIG. 9 is an enlarged view of the first and second friction plates according to the embodiment of the present invention;

FIG. 10 is a radial cross-sectional view of the spindle and retaining ring provided in accordance with an embodiment of the present invention;

fig. 11 is a schematic structural view illustrating a first air deflector opening a corresponding air outlet according to an embodiment of the present invention;

fig. 12 is a schematic structural view illustrating that the first air deflector and the second air deflector open the corresponding air outlets according to the embodiment of the present invention;

fig. 13 is a schematic structural view of the corresponding air outlet with all three air deflectors open according to the embodiment of the present invention;

fig. 14 is a schematic structural view illustrating that the second air deflector opens the corresponding air outlet according to the embodiment of the present invention;

fig. 15 is a schematic structural view illustrating that the second air deflector and the third air deflector open corresponding air outlets according to the embodiment of the present invention;

fig. 16 is a schematic structural view illustrating that a third wind deflector opens a corresponding air outlet according to an embodiment of the present invention;

fig. 17 is a schematic structural view of the first air deflector and the third air deflector provided in the embodiment of the present invention to open the corresponding air outlets.

Reference numerals: 100. a box body; 110. a storage chamber; 111. a temperature region; 200. an air duct cover plate; 210. A ventilation duct; 300. an air flow distributor; 310. an air outlet; 320. a wind deflector; 330. a main shaft; 331. Cutting into noodles; 332. a bevel gear; 340. a second sleeve; 341. a notch; 342. a return spring; 350. shifting blocks; 351. a fixing ring; 360. a first friction plate; 361. a groove; 370. a second friction plate; 371. a protrusion; 380. a first sleeve; 390. a housing; 400. a drive motor; 500. a door body.

Detailed Description

The refrigerator provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.

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.

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.

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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 is a perspective view of an embodiment of a refrigerator according to the present invention, and as shown in fig. 1, the refrigerator according to an embodiment of the present invention has an approximately rectangular shape. As shown in fig. 1 and 2, the refrigerator has an external appearance defined by a storage chamber 110 defining a storage space and a plurality of door bodies 500 provided in the storage chamber 110. The storage chamber 110 is a cabinet 100 having an opening, the storage chamber 110 is vertically partitioned into a lower freezing chamber and an upper refrigerating chamber, and each of the partitioned spaces may have an independent storage space.

In detail, the freezing compartment is defined at a lower side of the storage compartment 110 and may be selectively covered by a drawer type freezing compartment door. The space defined above the freezing chamber is a refrigerating chamber. The refrigerating chamber is selectively opened or closed by a refrigerating chamber door pivotably mounted on the refrigerating chamber.

As shown in fig. 2 and 3, the refrigerating chamber inside the cabinet 100 according to the embodiment of the present invention is divided into a plurality of different temperature regions 111, an air duct cover 200 is disposed in the storage chamber 110, as shown in fig. 4, a plurality of air ducts 210 are formed between the air duct cover 200 and the rear wall of the storage chamber 110, the plurality of air ducts 210 correspond to the plurality of temperature regions 111 one by one, an air distributor 300 is disposed at an inlet of the plurality of air ducts 210, as shown in fig. 5, a plurality of air outlets 310 are disposed on the air distributor 300, the plurality of air outlets 310 correspond to inlets of the plurality of air ducts 210 one by one, as shown in fig. 6, a wind shield 320 is disposed at each air outlet 310, and the plurality of wind shields 320 are controlled by the same driving motor 400 to open or close the corresponding air outlets 310 respectively.

The air distributor 300 provided by the embodiment of the present invention includes a plurality of main shafts 330, as shown in fig. 7, the edge of the wind shield 320 is fixedly connected with a first sleeve 380, the plurality of main shafts 330 correspond to the plurality of first sleeves 380 one by one, the plurality of first sleeves 380 are respectively sleeved on the corresponding main shafts 330, the plurality of main shafts 330 sequentially transmit torque end to end through a transmission mechanism, an included angle is formed between two adjacent main shafts 330, and an output shaft of the driving motor 400 is connected with one main shaft 330 located at two ends of the plurality of main shafts 330 connected end to end. Due to the included angle formed between the adjacent main shafts 330, the wind deflectors 320 connected to the main shafts 330 face different directions, as shown in fig. 3, 4 and 5, that is, the wind outlets 310 face different directions, so that the inlets of the ventilation air ducts 210 are disposed at the corresponding positions of the temperature areas 111.

For example, one of the temperature regions 111 is located below the installation position of the air distributor 300, and the air outlets 310 of the air distributor 300 are all arranged upward, so that the inlets of the ventilation air channels 210 need to be arranged above the air distributor 300, and the cold air passing through the ventilation air channels 210 can enter the storage room 110 from the outlets only through bending at multiple positions, thereby prolonging the flowing time of the cold air and increasing the loss of the cold air, and therefore, the refrigeration effect is affected.

Further, as shown in fig. 8, each spindle 330 is provided with a dial block 350, and the second sleeve 340 is sleeved with the dial block 350, the dial block 350 is disposed in a notch 341 on the second sleeve 340, lengths of the plurality of notches 341 extending along the circumferential direction of the second sleeve 340 are different, the second sleeve 340 is connected to the first sleeve 380 through a clutch assembly, the clutch assembly can enable the second sleeve 340 to drive the corresponding first sleeve 380 to rotate, so that the first sleeve 380 drives the corresponding wind deflector 320 to rotate between an open position and a closed position, and when the first sleeve 380 drives the wind deflector 320 to rotate to the open position or the closed position to stop rotating, the clutch assembly can enable the second sleeve 340 to be separated from the corresponding first sleeve 380, the second sleeve 340 is further provided with a reset mechanism therein, and the reset mechanism is used for enabling the clutch assembly to be engaged again.

In the air distributor 300, the second sleeve 340 and the first sleeve 380 are engaged or disengaged through the clutch assembly, that is, when the second sleeve 340 rotates along with the main shaft 330, because the second sleeve 340 and the first sleeve 380 are engaged with each other, the first sleeve 380 rotates along with the second sleeve 340, when the first sleeve 380 drives the wind deflector 320 to rotate to the open position or the closed position, and the wind deflector 320 cannot rotate continuously, the clutch assembly separates the second sleeve 340 from the first sleeve 380, that is, no torque is transmitted between the second sleeve 340 and the first sleeve 380, at this time, the second sleeve 340 can rotate continuously along with the main shaft 330, and the wind deflector 320 stops rotating, and then the reset mechanism is arranged in the second sleeve 340, so that the separated clutch assembly can be engaged again, and torque can be transmitted between the second sleeve 340 and the first sleeve 380 again, because the length of the notch 341 on each second sleeve 340 along the circumferential direction is different, therefore, the second sleeve 340 sequentially drives the corresponding first sleeves 380 to rotate according to the sequence of the gaps 341 from small to large, so as to respectively control each wind shield 320 to open or close the corresponding air outlet 310, and further realize the control of the air supply volume of each ventilation air duct 210, so as to accurately control the storage temperature of the temperature area 111 corresponding to each ventilation air duct 210, store different food materials in different temperature areas 111, improve the preservation effect of the food materials, and control the opening or closing of the wind shields 320 by the same driving motor, the whole structure is simple, the control is convenient, and the cost is low.

It should be noted that when the air deflector 320 is in the open position, the air outlet 310 corresponding to the air deflector 320 is completely opened, and when the air deflector 320 is in the closed position, the air outlet 310 corresponding to the air deflector 320 is closed.

Specifically, as shown in fig. 7 and 8, when the spindle 330 starts to rotate, the second sleeve 340 with the smallest gap 341 rotates along with the corresponding shifting block 350 and the spindle 330, the second sleeve 340 drives the corresponding first sleeve 380 to rotate, and the shifting blocks 350 of the remaining second sleeves 340 rotate in the gap 341 because the gap 341 is larger, when the wind deflector 320 corresponding to the first sleeve 380 rotates to the open position or the closed position, the wind deflector 320 is blocked from further rotating, so that the clutch components between the second sleeve 340 with the smallest gap 341 and the corresponding first sleeve 380 are separated, i.e. the two are mutually slipped, and at this time, the shifting block 350 of the next second sleeve 340 arranged in the order of the gaps 341 from small to large rotates to the end of the corresponding gap 341, the spindle 330 continues to rotate, the second sleeve 340 drives the corresponding first sleeve 380 to rotate, until the first sleeve 380 drives the corresponding wind deflector 320 to rotate to the open position or the closed position, and then the next second sleeve 340 continues to drive the corresponding first sleeve 380 to rotate, and so on, so that the main shaft 330 is controlled to rotate by the driving motor 400, that is, each wind deflector 320 can be driven to rotate, and the main shaft 330 is driven to rotate reversely by the driving motor 400, that is, the wind deflectors 320 can rotate in the opposite direction, and a reset mechanism is arranged in the second sleeve 340, so that the separated clutch assembly can be reconfigured, that is, torque can be transmitted between the second sleeve 340 and the first sleeve 380 again, so that the first sleeve 380 drives the wind deflectors 320 to rotate, as shown in fig. 5 and 6, so that the wind deflectors 320 can open or close the air outlet 310.

As shown in fig. 8 and 9, the clutch assembly according to the embodiment of the present invention includes a first friction plate 360 and a second friction plate 370 sleeved on the spindle 330, the first friction plate 360 is fixed on an end surface of the second sleeve 340 facing the corresponding first sleeve 380, the second friction plate 370 is fixed on an end surface of the first sleeve 380 facing the corresponding second sleeve 340, friction surfaces of the first friction plate 360 and the second friction plate 370 are attached to each other, and when a power generated by the driving motor 400 driving the spindle 330 to rotate is greater than a friction force between the first friction plate 360 and the second friction plate 370, the first friction plate 360 and the second friction plate 370 are separated from each other. The clutch assembly is composed of two friction plates, that is, friction force is applied between the first friction plate 360 and the second friction plate 370, so that the second sleeve 340 drives the corresponding first sleeve 380 to rotate, when the first sleeve 380 drives the corresponding wind shield 320 to rotate to the open position or the closed position to stop rotating, the main shaft 330 continues to drive the second sleeve 340 to rotate, at this time, the wind shield 320 is blocked and can not rotate, that is, a resistance force is provided between the first friction plate 360 and the second friction plate 370, and the resultant force of the resistance force and the friction force between the two friction plates is smaller than the power of the rotation of the main shaft 330, so that the first friction plate 360 and the second friction plate 370 slip with each other, that is, the first friction plate 360 and the second friction plate 370 separate from each other, thereby realizing that no torque is transmitted between the second sleeve 340 and the first sleeve 380.

Preferably, as shown in fig. 8 and 9, a plurality of grooves 361 are formed on the first friction plate 360 along the radial direction of the main shaft 330, a plurality of protrusions 371 are formed on the second friction plate 370 along the radial direction of the main shaft 330, and when the protrusions 371 extend into the grooves 361, torque can be transmitted between the second sleeve 340 and the corresponding first sleeve 380. That is, the two opposite friction surfaces between the first friction plate 360 and the second friction plate 370 are respectively provided with a corresponding groove 361 and a corresponding protrusion 371, so that the protrusion 371 enters the groove 361, that is, the two friction surfaces between the first friction plate 360 and the second friction plate 370 are mutually engaged, and thus the torque can be transmitted between the second sleeve 340 and the corresponding first sleeve 380.

Preferably, the plurality of grooves 361 of the first friction plate 360 may be directly formed on the end surface of the second sleeve 340 facing the corresponding first sleeve 380, so that one part can be reduced, and the processing time of the part can be reduced.

As shown in fig. 8, the reset mechanism provided in the embodiment of the present invention is a reset spring 342, the reset spring 342 is sleeved on the main shaft 330, and two ends of the reset spring 342 are respectively abutted against the inner wall of the second sleeve 340 and the shifting block 350. The second sleeve 340 is pressed by the return spring 342, so that the first friction plate 360 and the second friction plate 370 on the second sleeve 340 are tightly attached, when the wind shield 320 is driven to the opening position or the closing position to stop rotating, the protrusion 371 on the first friction plate 360 is pulled out from the groove 361 on the second friction plate 370, the return spring 342 in the second sleeve 340 is compressed, and when the protrusion 371 corresponds to the groove 361, the elastic force of the return spring 342 pushes the second sleeve 340, so that the protrusion 371 enters the groove 361, and the first friction plate 360 and the second friction plate 370 are tightly attached.

The notch 341 structure provided in the embodiment of the present invention may be directly formed on the outer wall of the second sleeve 340 along the circumferential direction, or may adopt a structure in which, as shown in fig. 8, the notch 341 extends along the axial direction of the second sleeve 340 to an end far from the corresponding first sleeve 380 and penetrates through the end of the second sleeve 340. Compared with the structure, the gap 341 penetrates through the end part of the second sleeve 340, the shifting block 350 can be fixed on the main shaft 330 firstly when the shifting block 350 is fixed with the main shaft 330, then the second sleeve 340 is sleeved on the main shaft 330, and the shifting block 350 stretches into the gap 341 from the end part of the second sleeve 340 when the shifting block 350 is fixed with the main shaft 330, so that no other part blocks when the shifting block 350 is fixed with the main shaft 330, thereby reducing the processing difficulty and saving the working hours.

In order to further reduce the processing difficulty, as shown in fig. 8, the shifting block 350 is fixed on a fixing ring 351, then the fixing ring 351 is sleeved on the main shaft 330, the fixing ring 351 is arranged in the second sleeve 340, the fixing ring 351 rotates along with the main shaft 330, and the end of the return spring 342 contacts with the end face of the fixing ring 351. The shifting block 350 is fixed on the mounting ring, and when the mounting ring, the reset spring 342 and the second sleeve 340 are sleeved on the main shaft 330 in sequence, so that the processing difficulty is reduced and the working efficiency is improved.

However, this connection method requires a fixed ring 351 to be installed to perform a welding operation, then another component such as the second sleeve 340 is installed, then another fixed ring 351 is installed to perform a welding operation, and then another component such as the second sleeve 340 is installed to perform a welding operation, which results in a complicated overall installation process, and therefore, as shown in fig. 10, the outer wall of the spindle 330 provided in the embodiment of the present invention is provided with a cut surface 331 along the axial direction, and the radial cross section of the inner ring of the fixed ring 351 is the same as the radial cross section of the spindle 330, and has a size suitable for the radial cross section of the spindle 330. The section 331 is axially arranged on the outer wall of the main shaft 330, the section of the inner ring of the fixing ring 351 and the section of the main shaft 330 are in the same shape, namely the inner ring of the fixing ring 351 is also provided with a plane, when the fixing ring 351 is sleeved on the main shaft 330, the plane of the inner ring of the fixing ring 351 is attached to the section 331 on the main shaft 330, so that the fixing ring 351 is prevented from rotating around the main shaft 330, and by using the connecting mode, other fixing process steps are not required to be added during installation, the processing time is saved, and the efficiency is improved.

Preferably, one or more cutting surfaces 331 may be provided on the spindle 330.

The two end parts of the notch 341 along the circumferential direction of the second sleeve 340 provided by the embodiment of the present invention are the first end part and the second end part respectively, when the wind deflectors 320 are all in the closed position, the shifting block 350 in the notch 341 with the minimum length along the circumferential direction of the second sleeve 340 is in contact with the two end parts of the notch 341, the remaining shifting blocks 350 are in contact with the first end part, the rotation direction of the shifting block 350 from the first end part to the second end part is consistent with the rotation direction of the wind deflectors 320 from the closed position to the open position, when the wind deflectors 320 are rotated from the closed position to the open position, the rotation angles around the main shaft 330 are all equal, the central angles corresponding to the lengths of the notches 341 form an equal difference series from small to large, and the tolerance of the angle is equal to the equal difference series. Specifically, if the rotation angle of the wind deflector 320 is 90 °, that is, the difference between the central angles corresponding to the lengths of the notches 341 is also 90 °, when the second sleeve 340 with the smallest notch 341 drives the corresponding wind deflector 320 to rotate 90 ° from the closed position to the open position, the shift block 350 on the next second sleeve 340 rotates 90 ° around the main shaft 330, because the difference between the central angles corresponding to the lengths of the notches 341 on the two second sleeves 340 along the circumferential direction is also 90 °, the shift block 350 of the second sleeve slides to the second end portion right along the first end portion of the notch 341, at this time, the shift block 350 can drive the second sleeve 340 and the corresponding wind deflector 320 to rotate, and the wind deflector 320 corresponding to the second sleeve 340 with the smallest notch 341 stops rotating, so that only one wind deflector 320 rotates in the same time, thereby realizing respective control of each wind deflector 320.

Preferably, the transmission mechanism provided by the embodiment of the present invention is two bevel gears 332 engaged with each other, and the two bevel gears 332 are respectively fixed at the ends of the two connected main shafts 330. The bevel gears 332 are fixedly connected to the ends of the main shafts 330, so that two adjacent main shafts 330 are meshed through the bevel gears 332 and transmit torque, so that one main shaft 330 is driven to rotate, and a plurality of main shafts 330 can be driven to rotate together.

As shown in fig. 4, 5, and 6, the air distributor 300 according to the embodiment of the present invention further includes a housing 390, the air outlets 310 are all opened on the housing 390, the main shaft 330 and the wind blocking plate 320 are both disposed in the housing 390, one end of the main shaft 330 is rotatably connected to an inner wall of the housing 390, and the other end of the main shaft extends out of the housing 390 and is connected to the driving motor 400. The main shaft 330 and other components are disposed inside the housing 390, so that the air distributor 300 forms an integral component, which is convenient for installation and further improves installation efficiency.

More specifically, the opening position and the closing position of wind deflector 320 during rotation are both positions where wind deflector 320 contacts the inner wall of housing 390, that is, wind deflector 320 rotates to contact the inner wall of housing 390 in the direction of opening air outlet 310 or in the direction of closing air outlet 310, and is blocked by the inner wall of housing 390, so that wind deflector 320 cannot rotate continuously, and at this time, wind deflector 320 rotates to the opening position or the closing position.

It should be noted that, as shown in fig. 5 and 6, a fan is further disposed inside the housing 390, an air inlet is disposed at a position corresponding to the fan, air is supplied to the air outlet 310 through the fan, and then is supplied to different temperature areas 111 through the plurality of ventilation air ducts 210, so that the temperature of the different temperature areas 111 can be regulated.

The driving gear is fixed on the output shaft of the driving motor 400 provided by the embodiment of the present invention, and the end of the main shaft 330 extending out of the housing 390 is connected with a working gear, which is engaged with the driving gear. The driving motor 400 drives the working gear to rotate through the driving gear, so as to drive the main shaft 330 to rotate, and the wind shield 320 opens or closes the corresponding wind outlet 310.

Specifically, in the embodiment of the present invention, as shown in fig. 2 and fig. 3, three temperature regions 111 are disposed in the storage chamber 110, as shown in fig. 4, three ventilation air ducts 210 are disposed between the storage chamber 110 and the air duct cover 200, as shown in fig. 5, three air outlets 310 are disposed on the outer shell 390 of the air distributor 300 and respectively correspond to inlets of the three ventilation air ducts 210, as shown in fig. 6, three air baffles 320 are disposed and respectively correspond to the three air outlets 310, and a specific working process of the air distributor 300 is as follows:

as shown in fig. 7, an included angle between three main shafts 330 is 90 °, the three wind deflectors 320 are all in a closed state, the wind deflector 320 connected to the driving motor 400 is the first wind deflector 320, the wind deflector 320 sequentially connected to the first wind deflector 320 is the second wind deflector 320 and the third wind deflector 320, the notch 341 on the second sleeve 340 corresponding to the first wind deflector 320 is the smallest, the notch 341 on the second sleeve 340 corresponding to the third wind deflector 320 is the largest, at this time, the driving motor 400 is controlled to drive the main shafts 330 to rotate in the forward direction, the first wind deflector 320 rotates along with the corresponding second sleeve 340, under the transmission of the bevel gear 332, the main shafts 330 corresponding to the second and third wind deflectors 320 rotate together, and the dials 350 in the second sleeves 340 corresponding to the second and third wind deflectors 320 move in the notches 341, after the first wind deflector 320 rotates around the main shafts 330 by 90 °, the first wind deflector 320 rotates to an open position, at this time, the first air deflector 320 stops rotating, the first friction plate 360 and the second friction plate 370 between the first sleeve 380 and the corresponding second sleeve 340 on the first air deflector 320 mutually slip and are in an overrunning state (i.e. torque is not transmitted between the first sleeve and the second sleeve), the air outlet 310 corresponding to the first air deflector 320 is opened, and the shifting block 350 on the second sleeve 340 corresponding to the second air deflector 320 rotates to the end of the notch 341, as shown in fig. 11.

Then, the spindle 330 continues to rotate, the second sleeve 340 corresponding to the second air deflector 320 rotates along with the spindle 330 under the driving of the dial block 350, at this time, the second sleeve 340 corresponding to the first air deflector 320 continues to rotate, the dial block 350 of the second sleeve 340 corresponding to the third air deflector 320 continues to move in the notch 341, after the second air deflector 320 rotates 90 degrees around the spindle 330, the second air deflector 320 rotates to the open position, at this time, the second air deflector 320 stops rotating, the first friction plate 360 and the second friction plate 370 between the first sleeve 380 on the second air deflector 320 and the corresponding second sleeve 340 slip mutually, and are in an overrunning state, the air outlets 310 corresponding to the first air deflector 320 and the second air deflector 320 are both opened, and the dial block 350 on the second sleeve 340 corresponding to the third air deflector 320 rotates to the tip of the notch 341, as shown in fig. 12.

At this time, if the driving motor 400 is controlled to continue to drive the main shaft 330 to rotate in the forward direction, the third air deflector 320 can be opened by repeating the above steps, that is, all three air deflectors 320 are in an opened state, as shown in fig. 13; if the driving motor 400 is controlled to drive the spindle 330 to rotate reversely, that is, the spindle 330 drives the wind deflectors 320 to rotate in the direction of closing the air outlet 310, at this time, the first wind deflector 320 still rotates along with the spindle 330, and only the second wind deflector 320 of the three wind deflectors 320 opens the corresponding air outlet 310 after the first wind deflector 320 is closed, as shown in fig. 14.

After all three wind deflectors 320 are opened and the air outlets 310 need to be closed in sequence, only the driving motor 400 is controlled to drive the main shaft 330 to rotate reversely, so that the main shaft 330 drives the wind deflectors 320 to rotate in sequence in the direction of closing the air outlets 310, as shown in fig. 15, the first wind deflector 320 is still closed first, and the processes are repeated in sequence, as shown in fig. 16, after the first wind deflector 320 and the second wind deflector 320 are closed, at this time, the main shaft 330 continues to rotate reversely, as shown in fig. 7, so that the third wind deflector 320 is closed, that is, all three air outlets 310 are closed, and after the first wind deflector 320 and the second wind deflector 320 are closed, the driving motor 400 is also controlled to drive the main shaft 330 to rotate normally, so that the first wind deflector 320 is opened, as shown in fig. 17, at this time, the first wind deflector 320 and the third wind deflector 320 in the three wind deflectors 320 are in an opened state.

In summary, when three wind deflectors 320 are provided, the air distributor 300 according to the embodiment of the present invention can achieve eight different working states of the three air outlets 310, that is, eight working states of all three air outlets 310 being opened, the air outlets 310 corresponding to the first and second wind deflectors 320 being opened, the air outlets 310 corresponding to the first and third wind deflectors 320 being opened, the air outlets 310 corresponding to the second and third wind deflectors 320 being opened, the air outlets 310 corresponding to the first wind deflector 320 being opened, the air outlets 310 corresponding to the second wind deflector 320 being opened, the air outlets 310 corresponding to the third wind deflector 320 being opened, and all three air outlets 310 being closed.

The air distributor 300 provided by the embodiment of the invention can control the plurality of air baffles 320 to open or close the corresponding air outlets 310 through the group of driving motors 400, so that the control is more convenient, the overall structure is simpler, and the overall cost is favorably reduced.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

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, characterized by comprising:

a cabinet having a storage chamber therein, the storage chamber being partitioned into a plurality of different temperature regions;

the air duct cover plate and the rear wall of the storage chamber form a plurality of ventilation air ducts, and outlets of the ventilation air ducts correspond to the temperature areas one by one;

the air baffles are arranged at the inlets of the ventilation air channels and used for opening or closing the inlets of the ventilation air channels, the air baffles are provided with a plurality of air baffles and correspond to the inlets of the ventilation air channels one by one, and the edges of the air baffles are fixedly connected with first sleeves;

the main shaft is provided with a plurality of first sleeves which correspond to the main shafts one by one and are respectively sleeved on the corresponding main shafts, the main shafts transmit torque sequentially from head to tail through a transmission mechanism, an included angle is formed between every two adjacent main shafts, each main shaft is provided with a shifting block, a second sleeve is sleeved on each main shaft, a notch is formed in each second sleeve, each shifting block is arranged at the notch, the notches extend along the circumferential direction of the corresponding second sleeve in different lengths, the second sleeves are connected with the first sleeves through clutch assemblies, each clutch assembly can enable the corresponding second sleeves to drive the corresponding first sleeves to rotate, so that the corresponding wind shields driven by the first sleeves rotate between an opening position and a closing position, and when the wind shields are driven by the first sleeves to rotate to the opening position or the closing position to stop rotating, the clutch component can separate the second sleeve from the first sleeve, and a reset mechanism is arranged in the second sleeve and used for enabling the clutch component to be engaged again;

and the driving motor is used for driving one of the main shafts positioned at two ends to rotate.

2. The refrigerator as claimed in claim 1, wherein the clutch assembly includes a first friction plate and a second friction plate sleeved on the main shaft, the first friction plate is fixed on an end surface of the second sleeve facing the first sleeve, the second friction plate is fixed on an end surface of the first sleeve facing the second sleeve, friction surfaces of the first friction plate and the second friction plate are attached to each other, and when a power of the driving motor driving the main shaft to rotate is greater than a friction force between the first friction plate and the second friction plate, the first friction plate and the second friction plate are separated from each other.

3. The refrigerator as claimed in claim 2, wherein the first friction plate has a plurality of grooves formed thereon along a radial direction of the main shaft, the second friction plate has a plurality of protrusions formed thereon along the radial direction of the main shaft, and when the protrusions extend into the grooves, the second sleeves drive the corresponding first sleeves to rotate.

4. The refrigerator as claimed in claim 1, wherein the return mechanism is a return spring, and the return spring is sleeved on the main shaft and is disposed between an inner wall of the second sleeve and the dial block.

5. The refrigerator of claim 4, wherein the notch extends in an axial direction of the second sleeve away from the corresponding end of the first sleeve and through the end of the second sleeve.

6. The refrigerator according to claim 5, wherein the shift block is connected with the main shaft through a fixing ring, the fixing ring is sleeved on the main shaft, the fixing ring rotates along with the main shaft, the shift block is fixed on an outer wall of the fixing ring, and an end of the return spring is in contact with an end face of the fixing ring.

7. The refrigerator as claimed in claim 6, wherein the spindle has a cut surface on an outer wall thereof in an axial direction, and the inner ring of the fixing ring has a cross section in a radial direction having the same shape as the cross section in the radial direction of the spindle and is sized accordingly.

8. The refrigerator according to claim 1, wherein two end portions of the notch in the circumferential direction of the second sleeve are a first end portion and a second end portion, when the plurality of wind deflectors are in the closed position, the paddle block in the notch having the smallest length in the circumferential direction of the second sleeve is in contact with the two end portions of the notch, the rest of the paddle blocks are in contact with the first end portion, a direction in which the paddle block rotates from the first end portion to the second end portion is identical to a direction in which the wind deflectors rotate from the closed position to the open position, when the plurality of wind deflectors rotate from the closed position to the open position, angles of rotation around the main shaft are all equal, central angles corresponding to the lengths of the plurality of notches form an arithmetic progression from small to large, and the angles are equal to a tolerance of the arithmetic progression.

9. The refrigerator according to claim 1, wherein the transmission mechanism is two bevel gears engaged with each other, and the two bevel gears are respectively fixed to ends of two adjacent main shafts.

10. The refrigerator according to any one of claims 1 to 9, further comprising a housing, wherein the housing is disposed at an inlet of the plurality of ventilation air ducts, the spindle and the wind deflectors are disposed inside the housing, the housing is provided with a plurality of air outlets, the plurality of wind deflectors are in one-to-one correspondence with the plurality of air outlets, when the wind deflectors rotate to an open position or a closed position, the wind deflectors abut against an inner wall of the housing, one end of the spindle is rotatably connected with the inner wall of the housing, and the other end of the spindle extends out of the housing and is connected with the driving motor.