CN110906615B

CN110906615B - Air-cooled refrigerator

Info

Publication number: CN110906615B
Application number: CN201811084416.0A
Authority: CN
Inventors: 李春阳; 苗建林; 何胜涛; 王刚
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: CN110906615A

Abstract

The present invention provides an air-cooled refrigerator, comprising: air supply distributor, refrigerating system, 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 controlled to rotate so as to adjust the air supply area to the plurality of air channels; the magnetic component is arranged on the adjusting piece; and the magnetic induction parts are triggered by the magnetic parts respectively at the positions opposite to the magnetic induction parts when the magnetic parts rotate and output indication signals. The controller determines the running state of the air supply distributor according to the indication signal received in the rotation process of the regulating piece, and after the abnormal running of the regulating piece is determined, the refrigerating system is closed and the defrosting heater is started, so that the air-cooled refrigerator enters the defrosting state, and the frost of the frozen air supply distributor is removed. 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 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 response to this problem, refrigerators that distribute cool air intensively by using an air supply distribution device have been proposed in the related art. 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: and the air supply distributor is used for distributing cold air to the air channels leading to the storage areas of the air-cooled refrigerator.

The air supply distributor comprises: 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 adjusting piece is arranged on the circumferential inner side of the shell, is provided with one or more shielding parts 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 thus, the air supply area to the plurality of air channels is changed; the magnetic component is arranged on the adjusting piece; a plurality of magnetic induction components which are fixed in the circumferential direction of the shell in an area opposite to the moving range of the magnetic component at intervals, wherein each magnetic induction component is respectively configured to be triggered by the magnetic component when the magnetic component rotates to a position opposite to the magnetic component and output an indication signal;

the air-cooled refrigerator further comprises: the refrigeration system comprises a heat exchanger for transferring cold to cold air, and a defrosting heater for defrosting the heat exchanger is correspondingly arranged; and the controller is respectively connected with the plurality of magnetic induction components and is configured to determine the running state of the regulating piece according to the indication signal received in the rotating process of the regulating piece, and after the abnormal running of the regulating piece is determined, the refrigerating system is closed and the defrosting heater is started so as to enable the air-cooled refrigerator to enter the defrosting state.

Optionally, the air-cooled refrigerator further comprises: the refrigerator comprises a box body, a heat exchanger and a heat exchanger, wherein a storage space and a refrigeration cavity are limited in the box body, the storage space is divided into a plurality of storage areas, the refrigeration cavity is arranged at the rear side of one of the storage areas, and the heat exchanger is arranged in the refrigeration cavity; 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 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 plurality of magnetically inductive components include at least: a first magnetism sensing member that opposes the magnetic member when the adjusting member is adjusted to a first state in which the plurality of air outlets are completely shielded, and a second magnetism sensing member that opposes the magnetic member when the adjusting member is adjusted to a second state in which the plurality of air outlets are completely opened; the controller is further configured to: and driving the adjusting piece to rotate in a test mode, and determining the running state of the air supply distributor according to the indicating signal of the first magnetic induction part and the indicating signal of the second magnetic induction part, which are acquired in the test rotation process.

Optionally, the supply air distributor further comprises a rotary drive mechanism for rotating the conditioning member, and the controller, when testing the conditioning member, is further configured to: and providing a test control signal for driving the adjusting piece to test and rotate for the rotary driving mechanism.

Optionally, the rotary drive mechanism comprises: 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 controller, when testing the conditioner, is further configured to: controlling the rotary driving mechanism to enable the adjusting piece to rotate to a second state in a direction that the plurality of air outlets are completely opened; then controlling the rotary driving mechanism to enable the adjusting piece to rotate to a first state towards the direction that the air outlets are completely shielded; the controller determines the operating state of the regulating member based on the indication signal and is further configured to: and if any indication signal is not received, determining that the operating state of the regulating part is abnormal.

Optionally, the controller, after bringing the air-cooled refrigerator into the defrosting state, is further configured to: the steps of driving the regulating member to test rotation and judging the operating state of the regulating member are repeatedly executed at regular time until the operating state of the regulating member is determined to be normal or the continuous defrosting time exceeds a set threshold, and the controller is further configured to: and generating an alarm prompt signal.

Optionally, the controller, prior to rotating the regulating member in a direction to fully open the plurality of outlet vents, is further configured to: and detecting an indication signal of the first magnetic induction component, and if the indication signal is not detected, controlling the rotary driving mechanism to enable the adjusting piece to rotate to a first state in a direction of completely shielding the plurality of air outlets.

Optionally, the motor is a stepping motor, and the controller is further configured to correct the step control parameter of the motor according to a number of steps of the motor between the indication signal of the second magnetism sensing member and the indication signal of the first magnetism sensing member.

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 plurality of magnetic induction components to respectively induce the magnetic components arranged on the regulating part, and after the magnetic components reach the positions opposite to the magnetic induction components, the magnetic induction components are triggered to output corresponding indication signals, so that the controller can determine the positions of the regulating parts according to the indication signals, further judge the running state of the regulating parts, find running abnormity in time, start a defrosting state to eliminate the abnormity of the moving components of the air supply distributor caused by freezing, avoid refrigeration faults caused by freezing of the air supply distributor, and greatly improve 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 first magnetic induction member in a first state where the shielding portion is adjusted to completely shield the plurality of air outlets, and to be opposite to the second magnetic member in a second state where the shielding portion is adjusted to completely open the plurality of air outlets; that is to say, first magnetism is felt the part and is used for sensing the regulating part and shields the first state of a plurality of air outlets completely, and second magnetism is felt the part and is used for sensing the regulating part and opens the second state of a plurality of air outlets completely, and the controller is through the detection to first magnetism to feel the part and the second magnetism to feel the part, can confirm the state of air supply distributor accurately, and in time the discovery is unusual, the automatic elimination trouble.

Furthermore, the air-cooled refrigerator of the invention can correct the motor control parameter of the rotary driving mechanism by the indication signal of the first magnetic induction component and the second magnetic induction component by the controller, thereby avoiding the movement deviation of the rotary driving mechanism.

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 side view of the interior of an air-cooled refrigerator according to one embodiment of the present invention;

fig. 3 is a schematic block diagram of a control part in an air-cooled refrigerator according to one embodiment of the present invention;

FIG. 4 is a schematic structural view of a supply air distributor in an air-cooled refrigerator according to one embodiment of the present invention;

FIG. 5 is an exploded view of the supply air distributor shown in FIG. 4;

fig. 6 is a diagram 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. 7 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. 8 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 inside of a cabinet 100 of an air-cooled refrigerator 10 according to an embodiment of the present invention, fig. 2 is a side view of the inside of the air-cooled refrigerator 10 according to an embodiment of the present invention, and fig. 3 is a schematic block diagram of a control part in the air-cooled refrigerator 10 according to an 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 distributor 300 and an air duct assembly 200, a controller 400, and a refrigerating system 500.

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 may be provided with the air duct assembly 200 and the refrigeration cavity 210, and the refrigeration system 500 includes a heat exchanger 510 disposed in the refrigeration cavity 210.

The refrigeration system 500 may employ a compression refrigeration system and the heat exchanger 510 may be an evaporator of the compression refrigeration system. The compression refrigeration system enables the evaporator of the compression refrigeration system to release cold energy through a refrigerant compression cycle. The compression refrigeration system 500 generally has four major components, namely a compressor 520, a condenser (not shown), a throttling device (not shown), and an evaporator, which directly or indirectly provides cooling energy into the storage compartment. The working principle is as follows: the compressor 520, which is a power of the refrigeration cycle, is driven by the motor to rotate continuously, extracts vapor in the evaporator, and increases the pressure and temperature of the refrigerant vapor through compression, thereby creating a condition for transferring the heat of the refrigerant vapor to an external environment medium, i.e., compressing the low-temperature and low-pressure refrigerant vapor to a high-temperature and high-pressure state. The evaporator is used as heat exchange equipment, the throttled low-temperature low-pressure refrigerant liquid is evaporated (boiled) in the evaporator to be changed into vapor, ambient heat is absorbed, ambient temperature is reduced, and the purpose of refrigeration is achieved. Since the compression refrigeration cycle is well known to those skilled in the art, the operation principle and construction thereof will not be described herein.

As is well known to those skilled in the art, the refrigeration system 500 may also be other types of refrigeration systems, such as a semiconductor refrigeration system, for example, a cold side heat exchanger of the semiconductor refrigeration system disposed within the refrigeration cavity 210.

The air duct assembly 200 distributes the cooling capacity generated by the heat exchanger 510 to each storage area, and the heat exchange efficiency of the heat exchanger 510 is reduced due to the fact that the air flow passes through the heat exchanger 510 and is frosted, so that the heat exchanger 510 can be correspondingly provided with the defrosting heater 530. After the heat exchanger 510 triggers defrosting, the refrigeration system 500 stops refrigerating, the air-cooled refrigerator 10 enters a defrosting mode, the defrosting heater 530 is started, and the heat exchanger 510 is defrosted. Since the defrosting technique for the air-cooled refrigerator is well known to those skilled in the art, it is not described herein.

In addition, since the return air may be frosted at the supply air distributor 300, the adjuster 30 or the rotary drive mechanism 430 may be caught in a serious case. Most operational anomalies in the conditioner 30 have been tested as a result of this problem. The air-cooled refrigerator 10 can also enter a defrost mode when the conditioner 30 has such a problem, and the heat of the defrost is used to remove the freezing of the supply air distributor 300.

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 and may be disposed between the storage space and the refrigeration cavity 210, for example, the refrigeration cavity 210 is disposed at the rear side of the duct assembly 200, and the second storage area 130 is preferably disposed at the front side of the duct assembly 200. 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 500, the defrosting heater 530, the air supply distributor 300, and the like.

Fig. 4 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. 5 is an exploded view of the supply air distributor 300 shown in fig. 4.

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. The adjusting member 30 is disposed at the circumferential inner side of the housing 20, has one or more shielding portions 32, and is configured to be controlled to rotate along the circumferential direction of the housing 20, so as to adjust an air outlet area of the shielding portion 32 shielding the plurality of air outlets 22, thereby changing an air supply area to the plurality of air ducts.

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 supply distributor 300 is disposed in the air flow 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 supplied into the respective storage areas of the refrigerator 10 through different air paths of the air path 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.

Fig. 6 is a diagram showing the arrangement positions of the magnetic induction members 420 in the air supply distributor 300 in the air-cooled refrigerator 10 according to one embodiment of the present invention, a plurality of

magnetic induction members

421 and 422 may be fixed at intervals in the outer periphery of the casing 20 in the region opposite to the moving range of the magnetic member 410, each of which is configured to be triggered by the magnetic member 410 and output an indication signal at the position opposite thereto when the magnetic member 410 rotates; the

magnetic sensing units

421 and 422 may be magnetic sensitive switches, and in a normal state where the magnetic unit 410 is not opposed thereto, the

magnetic sensing units

421 and 422 output a high level signal, and when the magnetic unit 410 rotates to a set position opposed thereto, the

magnetic sensing units

421 and 422 output a low level signal, so that the low level signal may be used as the indication signal. Therefore, the

magnetic induction members

421 and 422 can be disposed at the circumferential position of the housing 20 according to the set position of the magnetic member 410.

The magnetic induction members may be at least two, and for example, include a first magnetic induction member 421 facing the magnetic member 410 when the adjuster 30 is adjusted to a first state of completely shielding the plurality of air outlets 22, and a second magnetic induction member 422 facing the magnetic member 410 when the adjuster 30 is adjusted to a second state of completely opening the plurality of air outlets 22. That is, the first magnetic induction member 421 may output an indication signal in a first state of completely shielding the plurality of air outlets 22, and the second magnetic induction member 422 may output an indication signal in a second state of completely opening the plurality of air outlets 22.

As shown in fig. 3, the controller 400 of the air-cooled refrigerator 10 is connected to the plurality of

magnetic induction members

421 and 422 and the air supply distributor 300, respectively, and is configured to determine the operation state of the air supply distributor 300 according to the indication signal received during the rotation of the adjusting member 30, for example, when receiving the indication signal of the first magnetic induction member 421, the adjusting member 30 is determined to be adjusted to completely shield the plurality of air outlets 22, and when receiving the indication signal of the second magnetic induction member 422, the adjusting member 30 is determined to be adjusted to completely open the plurality of air outlets 22. The controller 400 may correspond the indication signal with a control signal transmitted to the supply air distributor 300 to determine whether the supply air distributor 300 is rotated according to the control signal and determine an operation state of the supply air distributor 300.

The controller 400 may use a main control chip of a main control board of the air-cooled refrigerator 10 or other special controllers, and in addition, the controller 400 may also include a plurality of groups of control devices to realize the functions thereof together.

The controller 400 may drive the adjusting member 30 to perform test rotation in addition to determining whether the air supply distributor 300 is in place during the adjustment phase, and determine the operation state of the air supply distributor 300 according to the indication signal obtained during the test rotation. The controller 400 may provide a test control signal for driving the adjusting member 30 to perform a test rotation to the rotation driving mechanism 430 when testing the adjusting member 30.

The initial default position of the adjustment member 30 may also be set to the first state or the second state described above. I.e., after cooling or test rotation is completed, the controller 400 drives the adjusting member 30 back to the initial default position, i.e., the adjusting member 30 returns to the initial default position.

The controller 400 of the air-cooled refrigerator 10 may be configured to: the controller 400 may also control the air supply fan 60 accordingly, for example, turn off the air supply fan 60 in the defrosting state or supply air with breeze, in the defrosting state, when it is determined that the adjusting member 30 is abnormally operated, and turn off the refrigeration system 500 and turn on the defrosting heater 530, so as to put the air-cooled refrigerator 10 into the defrosting state. The heat exchanger 510 itself may generally have judgment and adjustment of the defrosting start point and the defrosting off point, and the air-cooled refrigerator 10 of the embodiment may further increase the starting of defrosting according to the operating state of the adjusting member 30 in addition to starting defrosting when the condition of satisfying the defrosting start point of the heat exchanger 510 is satisfied. The controller 400 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 implement the functions thereof together.

Fig. 7 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 S702, driving the adjusting piece 30 to test rotation;

step S704, receiving the indication signals of the plurality of

magnetic induction units

421 and 422 output by the operation in place;

step S706, judging the running state of the adjusting piece 30 according to the indication signal;

in step S708, after determining that the adjusting member 30 is abnormally operated, the refrigeration system 500 is turned off and the defrosting heater 530 is turned on, so that the air-cooled refrigerator 10 enters a defrosting state.

The controller 400 may drive the conditioning member 30 for test rotation by sending a drive command to the motor 40, for example: and outputting a test driving instruction to drive the adjusting piece 30 to complete at least one periodic rotation process of the shielding part 32 from completely shielding the plurality of air outlets 22 to completely opening the plurality of air outlets 22 and then returning to a state of completely shielding the plurality of air outlets 22. That is, a complete test rotation process is: the rotation driving mechanism 430 rotates the adjuster 30 to a second state in a direction in which the plurality of outlets 22 are completely opened; then, the rotation driving mechanism 430 is controlled to rotate the adjuster 30 to the first state in the direction in which the outlets 22 are completely shielded.

The process of the controller 400 judging the operation state of the regulating member 30 may be: if the indication signal of the second magnetic induction component 422 and the indication signal of the first magnetic induction component 421 are received in sequence during the test rotation process, and if any one of the indication signals is not received, it is determined that the operating state of the adjusting member 30 is abnormal. That is, when the adjuster 30 is normal and the rotation driving mechanism 430 rotates the adjuster 30 to the second state in the direction in which the plurality of outlets 22 are completely opened, the magnetic member 410 faces the second magnetic induction member 422, and the controller 400 receives an instruction signal of the second magnetic induction member 422. When the rotation driving mechanism 430 rotates the adjuster 30 to the first state in the direction in which the plurality of outlets 22 are completely shielded, the magnetic member 410 faces the first magnetic induction member 421, and the controller 400 receives an instruction signal from the first magnetic induction member 421. If it is determined that the rotation process of the first state and the second state cannot be normally completed by the adjusting member 30 in the case where the indication signal of any one of the first magnetic induction means 421 and the second magnetic induction means 422 is not received by the controller 400.

The controller 400 is further configured to, before rotating the adjuster 30 in a direction to fully open the plurality of outlets 22: the instruction signal of the first magnetism sensing member 421 is detected, and if not detected, the rotation driving mechanism 430 is controlled to rotate the adjuster 30 to the first state in the direction in which the plurality of outlets 22 are completely shielded. If the adjusting member 30 is not rotated to the first state all the time, the adjusting member 30 can be restored through a plurality of reciprocating rotations, and if the adjusting member is not restored, an alarm prompt signal needs to be generated. That is, the controller 400 may first confirm the initial position of the adjuster 30 by the indication signal of the first magnetism sensing member 421 at the initial time, and if the initial position is not detected, control the rotation driving mechanism 430 to rotate the adjuster 30 to the first state in the direction in which the plurality of outlets 22 are completely shielded. If the rotation of the setting member 30 to the first state is not always possible, the setting member 30 can be restored by a plurality of reciprocal rotations, and defrosting is required to eliminate the freezing if the restoration is not possible.

After the controller 400 determines that the operation state of the regulating member 30 is abnormal, the controller 400 makes the air-cooled refrigerator 10 enter the defrosting state, and repeatedly performs the steps of driving the regulating member 30 to perform test rotation and determining the operation state of the regulating member 30 until it is determined that the operation state of the regulating member 30 is normal or the continuous defrosting time exceeds the 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 after the frost formation of the air supply distributor 300 is removed, it may be determined in time that the adjusting member 30 is restored to the normal state (after the restoration, it may be determined once by the test rotation), and the defrosting process triggered by the air supply distributor 300 may be stopped in time. If the controller 400 determines that the conditioner 30 cannot recover the normal operation even if the defrosting duration exceeds the set threshold, it may be determined that the fault cannot be recovered by the continuous operation, and an alarm prompt signal may be generated to prompt the user to intervene.

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:

when a start signal of the refrigeration system of the air-cooled refrigerator 10 is received, for example, before the air-cooled refrigerator 10 starts refrigeration each time, it is determined whether the function of the air supply distributor 300 is normal or not, so that the problem that the refrigeration of the air-cooled refrigerator 10 cannot meet the user requirement due to the fault in the refrigeration process is avoided.

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 motor steps from the indication signal received from the first magnetic sensing component 421 to the indication signal received from the second magnetic sensing component 421 in the rotation process is counted again, and the step control parameter of the motor is corrected according to the number of motor steps between the indication signal of the second magnetic sensing component and the indication signal of the first magnetic sensing component, so that the step change caused by long-term operation is avoided, the movement of the air supply distributor 300 is more accurate, and the requirement of accurate air supply is met.

The initial state of the adjusting member 30 may be the first state or the second state, and in this embodiment, a test rotation process of rotating from the first state to the second state and then returning to the first state is taken as an example for description, and a person skilled in the art should be able to correspondingly obtain a test rotation process of rotating from the second state to the first state and then returning to the second state.

Fig. 8 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 S802, 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 S804, detecting whether an indication signal of the first magnetic induction component 421 is received, that is, determining whether the adjusting component 30 is in a first state of completely shielding the plurality of air outlets 22;

in step S806, if the indication signal of the first magnetic induction means 421 is not received, the adjusting member 30 is driven to rotate in a direction to completely shield the air outlets 22, that is, the adjusting member 30 is reset to the first state of completely shielding the plurality of air outlets 22. In the case where the adjustment member 30 cannot be reset, the adjustment member 30 may be driven to reciprocate, and if the adjustment member 30 is not reset several times, it is determined that the movement of the air supply distributor 300 is abnormal;

step S808, when receiving the indication signal of the first magnetic induction component 421, the adjusting component 30 is driven to start the test rotation, and rotates in the direction of completely opening the air outlet 22;

step S810, determining whether the indication signal of the second magnetic induction component 422 is received, that is, determining whether the adjusting member 30 reaches the second state of completely opening the plurality of air outlets 22,

step S812, if the indication signal of the second magnetic induction component 422 is not received, the refrigeration system 500 is turned off and the defrosting heater 530 is turned on, so that the air-cooled refrigerator 10 enters a defrosting state;

step S814, repeatedly driving the test rotation at intervals of a certain time in the defrosting state, and detecting whether the freezing is eliminated;

step S816, whether a corresponding indication signal running in place is detected in the process of the repeated driving test rotation, if the process of the repeated driving test rotation receives the indication signals of the first magnetic induction component 421, the second magnetic induction component 422, and the first magnetic induction component 421 in sequence, the freeze elimination can be determined, and the elimination of the abnormal state can be confirmed again through the test rotation;

step S818, if the corresponding indication signal is not detected yet, whether the continuous defrosting time exceeds the set threshold value is judged;

in step S820, if the continuous defrosting time exceeds the set threshold and the indication signal is not detected correctly, it is determined that the movement abnormality of the air supply distributor 300 cannot be recovered, the defrosting is exited, the defrosting time is prevented from being too long, and an alarm prompt signal is generated to prompt the user to intervene.

Step S830, if the indication signal of the second magnetic induction component 422 is received, that is, the adjusting member 30 reaches the second state, the adjusting member 30 is driven to rotate in a direction that the air outlet 22 is completely shielded;

step S832, detecting whether the indication signal of the first magnetic induction component 421 is received, that is, determining whether the adjusting member 30 returns to the first state, and completing a test rotation from the first state to the second state and then returning to the first state;

step S834 of determining that the air supply distributor 300 is normal, and executing a subsequent control flow; 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.

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 components

421 and 422 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 defrosting state to eliminate the moving component abnormality of the air supply distributor 300 caused by freezing, thereby avoiding the refrigeration fault caused by freezing of the air supply distributor 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 adjusting piece is arranged on the circumferential inner side of the shell, is provided with one or more shielding parts 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 of the air ducts is changed;

the magnetic component is arranged on the adjusting piece;

a plurality of magnetic induction components which are fixed in the circumferential direction of the shell in an area opposite to the moving range of the magnetic component at intervals, wherein each magnetic induction component is respectively configured to be triggered by the magnetic component when the magnetic component rotates to a position opposite to the magnetic component and output an indication signal;

the refrigeration system comprises a heat exchanger for transferring cold to cold air, and a defrosting heater for defrosting the heat exchanger is correspondingly arranged; and

the controller is respectively connected with the magnetic induction components and is configured to determine the running state of the regulating part according to the indication signal received in the rotating process of the regulating part, and after the abnormal running of the regulating part is determined, the refrigerating system is closed and the defrosting heater is turned on, so that the air-cooled refrigerator enters the defrosting state;

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 plurality of magnetic induction members include at least: a first magnetism sensing member that opposes the magnetic member when the adjusting member is adjusted to a first state in which the plurality of air outlets are completely shielded, and a second magnetism sensing member that opposes the magnetic member when the adjusting member is adjusted to a second state in which the plurality of air outlets are completely opened;

the controller is further configured to: driving the adjusting piece to rotate in a test mode, and determining the running state of the air supply distributor according to the indicating signal of the first magnetic induction component and the indicating signal of the second magnetic induction component which are obtained in the test rotation process;

the air supply distributor also comprises a rotary driving mechanism for driving the adjusting piece to rotate;

the controller, when testing the conditioning piece, is further configured to: controlling the rotary driving mechanism to enable the adjusting piece to rotate to the second state in the direction that the air outlets are completely opened; then, the rotating driving mechanism is controlled to enable the adjusting piece to rotate to the first state in the direction that the air outlets are completely shielded;

the controller determining the operating state of the conditioning element from the indicator signal is further configured to: whether an indication signal of the second magnetic induction component and an indication signal of the first magnetic induction component are received in sequence in the test rotation process or not is judged, and if any indication signal is not received, the abnormal operation state of the regulating part is determined;

the controller, prior to rotating the regulating member in a direction to fully open the plurality of outlet ports, is further configured to:

and detecting an indication signal of the first magnetic induction member, and if the indication signal is not detected, controlling the rotation driving mechanism to rotate the adjusting member to the first state in a direction in which the plurality of air outlets are completely shielded.

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

the refrigerator comprises a box body, a heat exchanger and a heat exchanger, wherein a storage space and a refrigeration cavity are limited in the box body, the storage space is divided into a plurality of storage areas, the refrigeration cavity is arranged at the rear side of one of the storage areas, and the heat exchanger is arranged in the refrigeration cavity;

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 air-cooled refrigerator is a refrigerator that uses air as a cooling medium

The controller, when testing the conditioning piece, is further configured to: and providing a test control signal for driving the adjusting piece to test and rotate for the rotary driving mechanism.

4. The air-cooled refrigerator of claim 3 wherein the rotary drive mechanism comprises:

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.

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

The controller, after causing the air-cooled refrigerator to enter the defrost state, is further configured to: the steps of driving the regulating part to test and rotate and judging the running state of the regulating part are repeatedly executed at regular time until the regulating part is determined to be in a normal running state or the continuous defrosting time exceeds a set threshold value, and

the controller is further configured to, if the extended defrost time exceeds a set threshold: and generating an alarm prompt signal.

6. The air-cooled refrigerator of claim 4, wherein the air-cooled refrigerator is a refrigerator

The motor is a stepping motor, and

the controller is further configured to correct the step control parameter of the motor according to the number of motor steps between the indication signal of the second magnetism sensing part and the indication signal of the first magnetism sensing part.

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

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

and after the refrigerating time of the air-cooled refrigerator exceeds a set time.