CN110906613B

CN110906613B - Air-cooled refrigerator

Info

Publication number: CN110906613B
Application number: CN201811084403.3A
Authority: CN
Inventors: 李春阳; 朱小兵; 王铭; 苗建林
Original assignee: Haier Smart Home Co Ltd
Current assignee: Haier Smart Home Co Ltd
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2021-11-26
Anticipated expiration: 2038-09-17
Also published as: CN110906613A

Abstract

The invention provides an air-cooled refrigerator which comprises an air supply distributor, a distributor heating device and a controller. The air supply distributor is used for distributing cold air to air ducts leading to various storage areas of an air-cooled refrigerator, and comprises: the shell is provided with a plurality of air outlets which are respectively communicated with the air ducts; the adjusting piece is provided with one or more shielding parts and is configured to be controlled to rotate so as to adjust the air outlet area of the shielding parts for shielding the air outlets, and therefore the air supply area of the air ducts is changed; the magnetic component is arranged on the adjusting piece; and the magnetic induction component is fixed on the periphery of the shell and is configured to be triggered by the magnetic component to output an indication signal of running in place. And after determining that the regulating part operates abnormally, the controller controls the distributor heating device to be started so as to heat the air supply distributor and remove the frost freezing the air supply distributor. Therefore, the refrigeration fault caused by freezing of the air supply distributor can be found in time and processed, and the operation reliability of the air-cooled refrigerator is improved.

Description

Air-cooled refrigerator

Technical Field

The invention relates to the field of cold storage and frozen storage, in particular to an air-cooled refrigerator.

Background

For air-cooled refrigerators, the freshness-retaining properties of food are to a large extent dependent on the circulation of the air flow in the storage compartment of the air-cooled refrigerator and the temperature differences between the various parts of the refrigerator. The air flow in the refrigerator is reasonable in circulation, and the smaller the temperature difference is, the better the preservation performance of the air-cooled refrigerator is.

In most of the air-cooled refrigerator air path designs at present, an evaporator is arranged in a single accommodating chamber of the air-cooled refrigerator, and the accommodating chamber of the evaporator is communicated with each storage area by utilizing a complex air duct system, so that the structure of the existing air duct system is complex and the occupied space is large.

In order to solve this problem, an air-cooled refrigerator has been proposed in the related art in which cool air is distributed in a concentrated manner by an air supply distribution device. The air-cooled refrigerator adjusts the shielding area of the air duct through the moving parts, so that the air output of each storage area is controlled, however, the moving parts have the problems of freezing, blocking and the like in the long-term operation process, so that the operation is not in place, the faults are easy to occur, and the refrigeration reliability of the air-cooled refrigerator is reduced.

Disclosure of Invention

The invention aims to overcome at least one defect of the existing air-cooled refrigerator and provides an air-cooled refrigerator with high operation reliability.

In particular, the present invention provides an air-cooled refrigerator, comprising:

an air supply distributor for distributing cool air to air ducts leading to respective storage areas of an air-cooled refrigerator, the air supply distributor comprising: the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a plurality of air outlets arranged along the circumferential direction, and each air outlet is communicated with an air duct; the air supply fan is arranged in the shell and is configured to supply air to the air outlets; the adjusting piece is provided with one or more shielding parts arranged between the air supply fan and the shell and is configured to be controlled to rotate along the circumferential direction of the shell so as to adjust the air outlet area of the plurality of air outlets shielded by the shielding parts and change the air supply area to the plurality of air channels; the magnetic component is arranged on the adjusting piece; the magnetic induction component is fixed on the periphery of the shell and is configured to be triggered by the magnetic component to output an indication signal of running in place after the regulating component drives the magnetic component to rotate to a set position;

a distributor heating device configured to be controlled to activate heating of the supply air distributor; and

a controller configured to: the regulating part is driven to rotate in a test mode, the running state of the regulating part is judged according to the sensing result of the magnetic induction part obtained after the test rotation, and after the regulating part is determined to run abnormally, the distributor heating device is controlled to be started, so that the air supply distributor is heated, and frost freezing of the air supply distributor is removed.

Optionally, the air-cooled refrigerator further comprises:

the refrigerator comprises a box body, a storage space and a refrigeration cavity, wherein the storage space is divided into a plurality of storage areas, and the refrigeration cavity is arranged at the rear side of one of the storage areas and is used for arranging an evaporator; the air channel assembly is arranged between the storage space and the refrigeration cavity, and is limited with an airflow distribution cavity and an air channel; and the air supply distributor is arranged in the air flow distribution cavity. Optionally, the air supply distributor further includes a rotation driving mechanism for driving the adjusting member to rotate, and the rotation driving mechanism includes: the turntable part is fixedly connected with the adjusting part, and a gear ring is arranged on the periphery of the turntable part; a gear transmission part which is arranged at the radial outer side of the turntable part and is provided with a transmission gear meshed with the gear ring; and the motor is connected with the gear transmission part and is used for driving the gear transmission part to rotate under the control of the controller.

Optionally, the distributor heating device is annular and is disposed at the outer periphery of the housing; or the distributor heating device is annular or plate-shaped and is arranged on one side of the air supply distributor close to the gear ring.

Optionally, the motor is a stepper motor, and the controller is further configured to correct a stepper control parameter of the motor based on the indication signal.

Optionally, the shield portion is configured such that the plurality of air outlets are completely shielded, partially shielded, or completely open during rotation with the adjuster; and the arrangement position of the magnetism induction member is set to: the shielding part is adjusted to be opposite to the magnetic component under the state that the air outlets are completely shielded; the initial default position of the adjustment member is also set to: the positions of the air outlets are completely shielded.

Optionally, a magnetic component is provided in the adjuster at the spacing between the blinding portions.

Optionally, the process of the controller driving the adjusting member to perform the test rotation is configured to: outputting a test driving instruction to drive the adjusting piece to complete a rotation process of at least once moving from an initial default position to a position where the air outlets are completely opened, and then returning to the initial default position; and the step of the controller determining the operating state of the regulating member is configured to: and after a test driving command is output, acquiring a sensing result of the magnetic induction component, determining that the operation state of the regulating part is normal under the condition that the indication signal is acquired, and determining that the regulating part operates abnormally if the indication signal is not acquired.

Optionally, the controller, after activating the dispenser heating device, is further configured to: and repeatedly executing the steps of driving the regulating piece to test and rotate and judging the running state of the regulating piece at regular time until the running state of the regulating piece is determined to be normal or the continuous heating time of the heating device of the distributor exceeds a set threshold value.

Optionally, the controller, in the case that the dispenser heating device continues to heat for a heating time, is further configured to: and generating an alarm prompt signal.

Optionally, the controller is further configured to drive the adjustment member to perform the test rotation after any one of the following triggering events is acquired: receiving a starting signal of a refrigerating system of the air-cooled refrigerator; and after the refrigerating time of the air-cooled refrigerator exceeds the set time.

The air-cooled refrigerator of the invention utilizes the air supply distributor to intensively supply cold air, and utilizes the adjusting piece to controllably shield the air outlets so as to realize the selection of the opening and closing of the air channels and the adjustment of the air outlet quantity of each air channel, thereby reasonably distributing the cold air according to the cold quantity requirements of different storage areas and enhancing the fresh-keeping performance and the operating efficiency of the air-cooled refrigerator under the condition of saving the occupied space as much as possible. Furthermore, the air-cooled refrigerator provided by the invention utilizes the magnetic induction component to sense the magnetic component arranged on the regulating part, and outputs the indication signal of running in place after the magnetic component reaches the set position, so that the controller can judge the running state of the regulating part according to the indication signal, find running abnormity in time, and start the distributor heating device to heat the air supply distributor, thereby removing frost of the frozen air supply distributor, eliminating the abnormity of the moving components of the air supply distributor caused by freezing, avoiding the refrigeration fault caused by freezing of the air supply distributor, and greatly improving the running reliability of the air-cooled refrigerator for intensively distributing cold air.

Further, the air-cooled refrigerator of the present invention is innovatively designed for the arrangement positions of the magnetic induction member and the magnetic member such that the arrangement position of the magnetic member is set to be opposite to the magnetic member in a state where the shielding portion is adjusted to completely shield the plurality of air outlets, and the initial default position of the adjuster is also set to be a position where the plurality of air outlets are completely shielded. The controller drives the adjusting piece to complete a rotation test process that the shielding part covers the air outlets from the plurality of air outlets to the plurality of air outlets and then returns to a state of completely shielding the air outlets at least once, and the running state of the adjusting piece can be accurately determined.

Furthermore, the controller can correct the motor control parameters of the rotary driving mechanism through the indication signal of the magnetic induction component, so that the movement deviation of the rotary driving mechanism is avoided.

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

Drawings

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

FIG. 1 is a schematic view of the interior of the cabinet of an air-cooled refrigerator according to one embodiment of the present invention;

fig. 2 is a schematic block diagram of a control part in an air-cooled refrigerator according to one embodiment of the present invention;

FIG. 3 is a schematic structural view of a supply air distributor in an air-cooled refrigerator according to one embodiment of the present invention;

FIG. 4 is an exploded view of the supply air distributor shown in FIG. 3;

fig. 5 is a view showing the arrangement position of magnetic induction parts in the air supply distributor in the air-cooled refrigerator according to one embodiment of the present invention;

FIG. 6 is a schematic view of a controller performing a test rotation in an air-cooled refrigerator according to one embodiment of the present invention; and

fig. 7 is a flowchart of a controller performing a test rotation in an air-cooled refrigerator according to an embodiment of the present invention.

Detailed Description

FIG. 1 is a schematic view of the interior of a cabinet 100 of an air-cooled refrigerator 10 according to one embodiment of the present invention, an

Fig. 2 is a schematic block diagram of a control part in the air-cooled refrigerator 10 according to one embodiment of the present invention. The air-cooled refrigerator 10 according to an embodiment of the present invention may have a cabinet 100, an air supply dispenser 300, an air duct assembly 200, a controller 400, and a dispenser heating device 600.

The case 100 may have a storage space therein, which is divided into a plurality of storage areas. The rear side of the storage space can be provided with an air duct assembly 200 and a refrigeration cavity, and the refrigeration system can be a compression type refrigeration system and is provided with an evaporator arranged in the refrigeration cavity. The refrigeration system may also be other types of refrigeration systems, such as a semiconductor refrigeration system, for example, a cold side heat exchanger with a semiconductor refrigeration system disposed within a refrigeration cavity, as is known to those skilled in the art.

The duct assembly 200 distributes the cooling energy generated by the refrigeration system to the storage regions, and the plurality of storage regions may include a first storage region 110 and a second storage region 130 disposed below the first storage region 110. In some embodiments of the present invention, the first storage region 110 may be a refrigerating compartment and the second storage region 130 may be a freezing compartment. A temperature-changing space 120 may also be provided between the refrigerating compartment and the freezing compartment.

The duct assembly 200 is mounted to the rear of the cabinet 100, for example, the rear side of the duct assembly 200 arranges the refrigeration chamber, and the front side of the duct assembly 200 is preferably the second storage area 130. The duct assembly 200 has an airflow distribution chamber for accommodating the air distributor 300 therein, and ducts leading to the plurality of storage areas, which supply air to the storage areas through air supply ports leading to the storage areas.

The controller 400 of the air-cooled refrigerator may use a main control chip of a main control board of the air-cooled refrigerator 10 or other dedicated controllers, and the controller 400 may also include a plurality of sets of control devices to jointly implement its functions, such as controlling the refrigeration system, the dispenser heating device 600, the air supply dispenser 300, and the like.

Fig. 3 is a schematic structural view of the supply air distributor 300 in the air-cooled refrigerator 10 according to an embodiment of the present invention, and fig. 4 is an exploded view of the supply air distributor 300 shown in fig. 3.

The supply air distributor 300 includes a housing 20 and a regulating member 30. The housing 20 may have at least one inlet 21 and a plurality of outlets 22 such that airflow enters the housing 20 through the at least one inlet 21 and exits the housing 20 through the plurality of outlets 22. A plurality of air outlets 22 are arranged along the circumference of the housing 20, and each air outlet 22 is used for communicating with one air duct.

Disposed within the housing 20 is a supply air fan 60, the supply air fan 60 configured to induce an airflow from the intake vent 21 into the housing 20 and out of the housing 20 via one or more of the plurality of exhaust vents 22. The air supply fan 60 may be a centrifugal impeller, and is disposed in the casing 20, and the air supply distributor 300 has a compact structure, occupies a small space, and increases the amount of air supplied.

The adjusting member 30 has one or more shielding portions 32 disposed between the air supply fan 60 and the housing 20, and the adjusting member 30 is configured to be controlled to rotate along the circumferential direction of the housing 20 to adjust the air outlet area of the shielding portion 32 shielding the air outlets 22, so as to change the air supply areas of the air ducts and adjust the air supply amount accordingly. For example, the adjusting member 30 may be configured to be controlled to completely shield, partially shield or completely open the air outlets 22, so as to adjust the air outlet area of each of the air outlets 22. For example, the adjustment member 30 may allow each outlet vent 22 to be fully concealed, partially concealed, or fully opened at different locations.

The adjusting member 30 of the air supply distributor 300 in the embodiment of the present invention can controllably distribute the cool air flowing from the air inlet 21 to the plurality of air outlets 22, and can control opening and closing of the air outlet duct communicated with each air outlet 22 and/or adjust the air outlet volume in each air outlet duct, thereby meeting the cooling capacity requirements of different storage areas.

In some embodiments of the present invention, the housing 20 of the supply air distributor 300 may include a base 23 and a perimeter wall 24. The circumferential edge of the base 23 consists of a first edge section and a second edge section, preferably in the shape of a circular arc. The peripheral wall 24 has first and second

peripheral wall sections

241, 242 extending from the first and second edge sections, respectively, to one side of the base 23. The first peripheral wall section 241 may have a plurality of air outlets 22 formed thereon. In some embodiments, the first peripheral wall section 241 is a complete circular arc-shaped peripheral wall section, on which a plurality of air outlets 22 are opened, and each air outlet 22 may have an opening edge. In some embodiments, the first perimeter wall segment 241 may include at least 3 circular arc shaped perimeter wall segments, and a space between two circular arc shaped perimeter wall segments. The interval between every two circular arc-shaped peripheral wall sections is an air outlet 22. During machining, each circular arc-shaped peripheral wall segment may extend from a plurality of positions of the first edge segment of the base 23 to one side of the base 23. Further, the second edge section is also preferably designed in a circular arc shape concentric with the first edge section, so that the first peripheral wall section 241 and the second peripheral wall section 242 are on the same cylindrical peripheral wall, i.e. the first peripheral wall section 241 is coaxial with the second peripheral wall section 242.

In some embodiments of the present invention, the inner surface of the base 23 is further formed with a mounting recess 28, and the blower fan 60 is mounted to the mounting recess 28. For example, the supply fan 60 may be mounted to the inner surface of the mounting cavity 28. The base 23 may be ring-shaped to allow the supply fan 60 to extend into the housing 20 from a central ring-shaped aperture defined by the base 23 when the supply fan 60 and the base 23 are mounted to the remaining components of the air-cooled refrigerator 10, respectively.

In some embodiments of the present invention, the housing 20 further comprises a dispenser cover 25, which is disposed at an end of the first peripheral wall section 241 remote from the base 23 to define with the base 23, the peripheral wall 24 an air outlet space, i.e. the interior space of the housing 20. To facilitate mounting of dispenser cover 25, housing 20 may further include a plurality of snap arms 26 extending from a plurality of locations on the edge of dispenser cover 25, respectively, toward base 23, each snap arm 26 having a snap groove or protrusion formed on an inner surface thereof. A plurality of protrusions 27, or a plurality of catching grooves, respectively, are formed on the outer surface of the first peripheral wall section 241 to be engaged with each catching groove, respectively, so that the dispenser cover 25 is caught to the base 23. The dispenser cover 25 may be formed with at least one intake vent 21.

The shielding portions 32 of the adjuster 30 may be provided at intervals in the circumferential direction of the base 23. At least part of the surface of the shield 32 facing the peripheral wall 24 is arranged coaxially with the first peripheral wall section 241. The adjustment member 30 is rotatably mounted to the housing 20 about the axis of the first peripheral wall section 241 for controlled movement of the one or more shutters 32 to positions that fully obscure, partially obscure, or fully open each outlet vent 22 when rotated to different rotational positions. The shield 32 can be a curved shield, the outer surface of which can be sealingly attached to the inner surface of the first peripheral wall section 241 at all times when the adjuster 30 is rotated about the axis of the first peripheral wall section 241, so that the curved shield can controllably open or close the one or more outlet openings 22 at different rotational positions.

In some embodiments, the number of the outlets 22 is three, and the outlets are sequentially spaced in the circumferential direction of the base 23. The three outlets 22 include a first outlet 221, a second outlet 222, and a third outlet 223, which are sequentially spaced along a circumferential direction of the base 23 and along a counterclockwise direction. The shielding portions 32 are sequentially spaced along the circumferential direction of the base 23 and along the counterclockwise direction to correspond to the first outlet 221, the second outlet 222, and the third outlet 223.

The supply air distributor 300 further includes a rotary drive mechanism 430, and the rotary drive mechanism 430 includes: turntable 31, gear transmission 50, motor 40. Wherein the turntable part 31 is fixedly connected with the adjusting piece 30, for example, each shielding part 32 extends from one surface of the turntable part 31. The turntable part 31 may be disk-shaped or ring-shaped, and a ring gear 52 is provided on the outer periphery of the turntable part 31.

The motor 40 may be disposed radially outward of the turntable portion 31. The gear transmission portion 50 is configured to decelerate transmission of the rotational motion output from the motor 40 to the adjuster 30. The gear transmission 50 may include a gear 51, and the gear 51 may be mounted on an output shaft of the motor 40. The ring gear 52 may be formed integrally with the turntable portion 31 or may be separate and fixed to the turntable portion 31. For example, the ring gear 52 includes an annular rib extending from the other surface of the turntable portion 31 coaxially with the turntable portion 31, and a plurality of teeth extending outward from an outer peripheral surface of the annular rib and arranged at intervals in a circumferential direction of the annular rib. In some embodiments, the inner surface of the base 23 is formed with an annular groove 231, and the ring gear 52 is mounted in the annular groove 231 to smooth the movement of the adjuster 30.

In order to protect the motor 40, the housing 20 further includes a motor accommodating portion 29 provided on an outer surface of the first peripheral wall section 241 and/or the second peripheral wall section 242, and defining an accommodating chamber for accommodating the gear 51 and the motor 40 therein. The motor housing 29 may include a cavity 291 extending outwardly from an outer surface of the first peripheral wall 241, and a cover 292 removably mounted to the cavity.

The air distributor 300 is disposed in the air distribution chamber, and is arranged such that the rotation axis of the adjuster 30 is along the front-rear direction of the air-cooled refrigerator 10, and the plurality of air outlets 22 of the adjuster 30 can be fed into each storage area of the air-cooled refrigerator 10 through different air paths of the air duct assembly 200, and the air volume of each storage area is adjusted by the adjuster 30.

The adjusting member 30 is further provided with a magnetic member 410, the magnetic member 410 can be disposed in the adjusting member 30 at the interval between the shielding portions 32, and the magnetic member 410 can be disposed adjacent to the inner side or the outer side of the shielding portion 32 and can rotate correspondingly with the rotation of the adjusting member 30.

The dispenser heating device 600 is configured to be activated to heat the supply air dispenser 300 under control, and because the air flow from the storage area is relatively humid, there is a possibility of frost forming at the supply air dispenser 300, and in the severe case, the adjustment member 30 or the rotational drive mechanism 430 may be caught. Most operational anomalies in the conditioner 30 have been tested as a result of this problem. The dispenser heating device 600 is used to heat the supply air dispenser 300 and eliminate frost thereof when it is determined that the supply air dispenser 300 has the above-described problem. The dispenser heating device 600 may be heated by various heating methods, such as heating wires, infrared heating, microwave heating, and the like.

One specific configuration of the dispenser heating device 600 is annular as a whole, and is provided on the outer periphery of the housing 20. Another configuration is that the distributor heating device 600 is annular or plate-shaped and is provided on the side of the air supply distributor 300 close to the ring gear 52. The structures are arranged aiming at the area which is easy to freeze, and the abnormal movement fault caused by freezing can be easily recovered as soon as possible.

Fig. 5 is a diagram illustrating the arrangement position of the magnetic induction component 420 in the blowing air distributor 300 in the air-cooled refrigerator 10 according to an embodiment of the present invention, wherein the magnetic induction component 420 is fixed on the outer periphery of the casing 20 and configured to be triggered by the magnetic component 410 to output a running-in indication signal after the adjusting component 30 rotates the magnetic component 410 to a set position. The magnetic sensing part 420 may be a magnetic sensitive switch, and when the magnetic part 410 is not opposite to the magnetic sensitive switch, the magnetic sensing part 420 outputs a high level signal, and when the magnetic part 410 rotates to a set position opposite to the magnetic sensitive switch, the magnetic sensing part 420 outputs a low level signal, so that the low level signal may be used as the indication signal. Therefore, the magnetic induction member 420 can be disposed at a circumferential position of the housing 20 according to a set position of the magnetic member 410.

In some embodiments, the shield portion 32 may allow the plurality of outlets 22 to be completely shielded, partially shielded, or completely open during rotation with the adjuster 30. The arrangement position of the magnetism sensing member 420 may be set to be opposed to the magnetic member 410 when the shutter 32 is rotated to the set position (the set position of the magnetic member 410 is a position opposed to the magnetism sensing member 420 in a case where the plurality of air outlets 22 are completely shielded). That is, the magnetic induction component 420 may be triggered by the magnetic component 410 when the air outlets 22 are completely shielded, so as to output an indication signal (e.g., high level is switched to low level).

The initial default position of the adjustment member 30 may also be set to: a position where the plurality of outlets 22 are completely shielded. That is, after the cooling or test rotation is completed, the controller 400 drives the adjusting member 30 to return to the initial default position, that is, the adjusting member 30 returns to the position where the plurality of air outlets 22 are completely shielded. On the one hand, the controller is convenient to execute the driving program, and on the other hand, the influence on the basic refrigerating function of the air-cooled refrigerator can be reduced even if the adjusting piece 30 is frozen and stuck.

The controller 400 of the air-cooled refrigerator 10 may be configured to: the adjusting member 30 is driven to rotate in a test manner by controlling the rotation driving mechanism 430, the operation state of the adjusting member 30 is judged according to the sensing result of the magnetic sensing part 420, and after the abnormal operation of the adjusting member 30 is determined, the distributor heating device 600 is controlled to be started to heat the air supply distributor 300, so that the frost freezing of the air supply distributor 300 is removed. During fault handling, the controller 400 may also control the supply fan 60 and the refrigeration system accordingly, such as first turning off the supply fan 60 and the refrigeration system, and then turning on the dispenser heating device 600.

Fig. 6 is a schematic diagram of the controller 400 performing a test rotation in the air-cooled refrigerator 10 according to an embodiment of the present invention, wherein the controller 400 may perform the following steps:

step S602, driving the adjusting member 30 to perform test rotation;

step S604, receiving the in-place running indication signal output by the magnetic induction component 420;

step S606, judging the running state of the regulating part 30 according to the indication signal;

in step S608, after determining that the adjusting member 30 is abnormally operated, the refrigeration system is turned off and the dispenser heating device 600 is turned on, so that the air-cooled refrigerator 10 enters a fault handling state.

The controller 400 may drive the adjuster 30 to perform a test rotation process by sending a driving command to the motor 40, for example, the process may be: and outputting a test driving instruction to drive the adjusting piece 30 to complete at least one rotation process of enabling the shielding part 32 to completely shield the plurality of air outlets 22 from a position where the plurality of air outlets 22 are completely shielded to a position where the plurality of air outlets 22 are completely opened, and then returning to the position where the plurality of air outlets 22 are completely shielded. That is, the adjusting member 30 is rotated at least once from the initial default position to the position where the outlets 22 are completely opened, and then returned to the initial default position, so that the outlets 22 are completely closed to be completely opened and then completely closed.

The process of the controller 400 judging the operation state of the regulating member 30 may be: after the test driving instruction is output, the sensing result of the magnetic induction part 420 is acquired, and if it is determined that the indication signal is acquired, it is determined that the operation state of the regulating member 30 is normal, and if the indication signal is not acquired, it is determined that the operation of the regulating member 30 is abnormal. That is, it is determined whether the indication signal of the magnetic induction part 420 received during the rotation of the driving adjustment member 30 corresponds to the test driving command, if so, it is determined that the operation state of the adjustment member 30 is normal, and if not, it is determined that the operation state of the adjustment member 30 is abnormal. For example, the controller 400 receives the indication signal of the magnetism sensing part 420 every time the adjusting member 30 is driven to the set position, and determines that the operation state of the adjusting member 30 is normal.

The controller 400, prior to outputting the test drive command, is further configured to: whether the adjusting member 30 is located at the initial default position is confirmed, and if the adjusting member 30 is located at the non-initial default position, the adjusting member 30 is first driven to return to the initial default position. For example, if it is determined whether the adjusting member 30 is located at a position that completely covers the plurality of outlet ports 22 before the test rotation is performed, and if not, the position of the adjusting member 30 is first reset, which facilitates the controller 400 to accurately control the position of the adjusting member 30 on the one hand, and also reduces the influence of the malfunction on the cooling on the other hand.

After the controller 400 determines that the operation state of the conditioner 30 is abnormal, the controller 400 turns off the refrigeration system and the blower fan 60, starts the dispenser heating device 600, and repeatedly performs the steps of driving the conditioner 30 to perform test rotation and determining the operation state of the conditioner 30 until it is determined that the operation state of the conditioner 30 is normal or the continuous heating time exceeds a set threshold. That is, the controller 400 may restore the normal operation of the adjusting member 30 by operating the rotation driving mechanism 430 multiple times, and may determine in time that the adjusting member 30 is restored to the normal state after the frost formation of the air supply distributor 300 is removed, and stop the heating process triggered by the air supply distributor 300 in time. If the continuous heating time of the dispenser heating device 600 exceeds the set threshold value and the regulating part 30 is still determined not to be recovered to normal operation, the fault can be determined not to be recovered by heating operation, and an alarm prompt signal can be generated to remind a user of intervention.

The controller 400 is further configured to drive the conditioning piece 30 for a test rotation upon acquisition of any one of the following triggering events:

receiving a starting signal of a refrigerating system of the air-cooled refrigerator 10, for example, before the air-cooled refrigerator 10 starts refrigerating each time, firstly determining whether the function of the air supply distributor 300 is normal, and avoiding that the refrigerating of the air-cooled refrigerator 10 can not meet the user requirement due to the fault in the refrigerating process;

after the cooling time of the air-cooled refrigerator 10 exceeds a set time, for example, after the air-cooled refrigerator 10 continuously runs for more than two hours (the specific time here is an example, and the actual implementation can be flexibly configured), a test process is performed to avoid freezing due to continuous cooling.

In the case where the motor 40 uses a stepping motor, the controller 400 may be further configured to correct the stepping control parameter of the motor 40 according to the instruction signal. For example, the number of steps for completing the rotation process from completely shielding the plurality of air outlets 22 to completely opening the plurality of air outlets 22 and then returning to completely shielding the plurality of air outlets 22 at one time is determined again, so that the number of steps for driving the air supply distributor 300 to reach each state can be corrected, the change of the number of steps caused by long-term operation is avoided, the air supply distributor 300 moves more accurately, and the requirement of accurate air supply is met.

The controller 400 may return the adjuster 30 to the initial default position after driving the adjuster 30 to complete the test rotation.

Considering that, in a state where the plurality of outlets 22 are completely opened, although precise air supply to each storage area is not possible, it is ensured that cool air can enter the storage area, so that the most basic cooling function of the air-cooled refrigerator 10 is not affected by a malfunction of the air supply distributor 300, it may be preferable to adopt the shield portion 32 at a position where the plurality of outlets 22 are completely opened as the initial position.

Fig. 7 is a flowchart of a test rotation performed by the controller 400 in the air-cooled refrigerator according to an embodiment of the present invention, and the controller 400 may perform the following steps:

step S702, detecting a trigger event for testing, wherein the trigger event can be that a starting signal of a refrigerating system of the air-cooled refrigerator 10 is received, and the refrigerating time of the air-cooled refrigerator 10 exceeds a set time length;

step S704, confirming that the adjusting member 30 is located at the initial default position, i.e. it is determined that the indication signal can be detected;

step S706, when the adjuster 30 is not in the initial default position (the set position where the magnetic member 410 and the magnetic induction member 420 are opposed to each other, for example, the position where the plurality of outlets 22 are completely shielded), the adjuster 30 is driven to return to the position where the outlets 22 are completely closed;

step S708, the adjusting member 30 is driven to rotate for testing, so as to complete the process of completely closing the air outlet 22 to completely open and then completely closing the air outlet;

step S710, whether an indication signal of running in place is detected;

step S712, if no indication signal is detected, the refrigeration system is turned off and the dispenser heating device 600 is turned on;

step S714, repeatedly driving the test rotation at certain intervals;

step S716, judging again the indication signal of the in-place operation is detected;

step S718, if the indication signal is not detected yet, determining whether the continuous heating time of the dispenser heating device 600 exceeds a set threshold;

in step S720, if the indication signal is detected to be normal, it is determined that the air supply distributor 300 is normal (it may be further confirmed by repeating the test rotation one or more times, for example, performing the test rotation again to determine fault recovery). In the case where it is determined that the supply air distributor 300 is normal, the subsequent control flow is executed; the subsequent flow may include: the position of the adjuster 30 is reset (for example, the position is returned to the fully opened position of the outlet 22), and cooling, air volume adjustment, and the like are started.

In step S722, if the dispenser heating device 600 continues to heat for a time period exceeding the set threshold value and the indication signal is not correctly detected, it is determined that the movement abnormality of the air supply dispenser 300 cannot be recovered, the dispenser heating device 600 is turned off, the heating time is prevented from being too long, and an alarm prompt signal is generated to prompt the user to intervene.

The air-cooled refrigerator 10 of this embodiment utilizes air supply distributor 30 to concentrate the air supply to cold wind, utilizes regulating part 20 to shield a plurality of air outlets 22 in a controllable way to realize the selection of the opening and closing of wind channel and the regulation of each wind channel air-out amount of wind, thereby can be according to the cold volume demand of different storage district, rationally distribute cold wind, under the condition of saving occupation space as far as possible, reinforcing air-cooled refrigerator 10's freshness preservation performance and operating efficiency. Further, the air-cooled refrigerator 10 of the present embodiment utilizes the magnetic induction component 420 to induce the magnetic component 410 disposed on the adjusting component, and outputs the indication signal of the operation in place after the magnetic component 410 reaches the set position, so that the controller 400 can judge the operation state of the adjusting component 30 according to the indication signal, find the operation abnormality in time, and start the dispenser heating device 600 to continuously heat for a time exceeding the set threshold value, so as to eliminate the moving component abnormality of the air supply dispenser 300 caused by freezing, thereby avoiding the refrigeration fault caused by freezing of the air supply dispenser 300.

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

Claims

1. An air-cooled refrigerator comprising:

an air supply dispenser for dispensing cool air to air ducts leading to respective storage areas of the air-cooled refrigerator, the air supply dispenser comprising:

the shell is provided with a plurality of air outlets arranged along the circumferential direction, and each air outlet is used for being communicated with one air duct;

the air supply fan is arranged in the shell and is configured to supply air to the air outlets;

the adjusting piece is provided with one or more shielding parts arranged between the air supply fan and the shell and is configured to be controlled to rotate along the circumferential direction of the shell so as to adjust the air outlet area of the shielding parts for shielding the air outlets, and therefore the air supply area to the air channels is changed;

the magnetic component is arranged on the adjusting piece;

the magnetic induction component is fixed on the periphery of the shell and is configured to be triggered by the magnetic component to output an indication signal of running in place after the adjusting component drives the magnetic component to rotate to a set position;

a controller configured to: driving the regulating part to rotate in a test mode, judging the running state of the regulating part according to the sensing result of the magnetic induction part obtained after the test rotation, and controlling the distributor heating device to start after determining that the regulating part runs abnormally so as to heat the air supply distributor and remove frost freezing the air supply distributor;

the controller is further configured to drive the adjusting member to perform a test rotation upon acquisition of any one of the following triggering events:

receiving a starting signal of a refrigerating system of the air-cooled refrigerator; and

after the refrigerating time of the air-cooled refrigerator exceeds a set time length;

the shielding portion is configured to cause the plurality of air outlets to be completely shielded, partially shielded, or completely opened during rotation with the adjusting member; and is

The arrangement position of the magnetism induction part is set as follows: the shielding portion is adjusted to be opposite to the magnetic member in a state that the plurality of air outlets are completely shielded;

the initial default position of the adjustment member is also set to: a position where the plurality of air outlets are completely shielded;

the process of the controller driving the regulating member to perform test rotation is configured to:

outputting a test driving instruction to drive the adjusting piece to complete a rotation process of at least once moving from the initial default position to a position where the air outlets are completely opened and then returning to the initial default position; and is

The step of the controller determining the operating state of the regulating member is configured to: and after a test driving instruction is output, acquiring a sensing result of the magnetic induction component, determining that the operation state of the regulating part is normal under the condition that the indication signal is acquired, and determining that the regulating part operates abnormally if the indication signal is not acquired.

2. The air-cooled refrigerator of claim 1, further comprising:

the refrigerator comprises a box body, a storage space and a refrigeration cavity, wherein the storage space is divided into a plurality of storage areas, and the refrigeration cavity is arranged at the rear side of one of the storage areas and is used for arranging an evaporator;

the air duct assembly is arranged between the storage space and the refrigeration cavity, and is limited with an airflow distribution cavity and the air duct; and the air supply distributor is arranged in the airflow distribution cavity.

3. The air-cooled refrigerator of claim 1, wherein the supply air dispenser further comprises a rotary drive mechanism for rotating the adjusting member, the rotary drive mechanism comprising:

the turntable part is fixedly connected with the adjusting part, and a gear ring is arranged on the periphery of the turntable part;

a gear transmission section provided radially outside the turntable section and having a transmission gear meshing with the ring gear; and

and the motor is connected with the gear transmission part and is used for driving the gear transmission part to rotate under the control of the controller.

4. The air-cooled refrigerator of claim 3,

the distributor heating device is annular and is arranged on the periphery of the shell; or

The distributor heating device is annular or plate-shaped and is arranged on one side of the air supply distributor close to the gear ring.

5. The air-cooled refrigerator of claim 3,

the motor is a stepping motor, and

the controller is also configured to correct the stepping control parameter of the motor according to the indication signal.

6. The air-cooled refrigerator of claim 1, wherein the air-cooled refrigerator is a refrigerator that uses air as a cooling medium

The controller, upon activating the dispenser heating device, is further configured to: and repeatedly executing the steps of driving the regulating piece to test and rotate and judging the running state of the regulating piece at regular time until the running state of the regulating piece is determined to be normal or the continuous heating time of the distributor heating device exceeds a set threshold value.

7. The air-cooled refrigerator of claim 6, wherein the air-cooled refrigerator is provided with a cooling fan

The controller, if the dispenser heating device continues to heat for a time period, is further configured to: and generating an alarm prompt signal.