CN114508881A

CN114508881A - A kind of refrigerator

Info

Publication number: CN114508881A
Application number: CN202011289215.1A
Authority: CN
Inventors: 鲍雨锋; 李利云
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2022-05-17
Anticipated expiration: 2040-11-17
Also published as: CN114508881B; WO2022105102A1

Abstract

The application discloses refrigerator relates to refrigeration plant technical field for the function of refrigerator among the solution prior art is more single, the more problem of required manual operation. The application includes: a storage compartment with an opening is formed in the box body; the movable piece is provided with a connecting device and a first transmission piece fixedly connected with the connecting device, and the connecting device movably connects the movable piece to the box body; the door opening and closing driving device is arranged on the box body or the movable piece and consists of a plurality of components, one of the components is a clutch, and the clutch can disengage or engage all or part of the components with the first transmission piece; when the clutch engages all or part of the plurality of components with the first transmission piece, the door opening and closing driving device can drive the movable piece to open or close through the connecting device; when the clutch disengages all or part of the plurality of components from the first transmission piece, the movable piece can drive the connecting device to move or drive some components in the connecting device and the door opening and closing driving device to move.

Description

A kind of refrigerator

Technical Field

The application relates to the technical field of refrigeration equipment, in particular to a refrigerator.

Background

A refrigerator is a refrigerating apparatus capable of storing food or other articles to maintain a constant low temperature, and has become one of the common household appliances at present. Along with the improvement of living standard of people, the requirements on the functions and the automation level of the refrigerator are higher and higher, and the existing refrigerator has single function and needs more manual operations.

Disclosure of Invention

The embodiment of the application provides a refrigerator for solve among the prior art the function of refrigerator and be more single, required manual operation more problem.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

an embodiment of the present application provides a refrigerator, including: a case in which a storage compartment having an opening is formed; the movable piece is provided with a connecting device and a first transmission piece, the connecting device movably connects the movable piece to the box body so as to close or open the opening of the storage compartment, and the first transmission piece is fixedly connected with the connecting device; the door opening and closing driving device is installed on the box body or the movable piece and consists of a plurality of components, one of the components is a clutch, and the clutch can enable all or part of the components to be disengaged or engaged with the first transmission piece; when the clutch engages all or part of the plurality of components with the first transmission piece, the door opening and closing driving device can drive the movable piece to automatically open or close through the connecting device; when the clutch disengages all or part of the plurality of components from the first transmission piece, the movable piece can drive the connecting device to move or drive some components in the connecting device and the door opening and closing driving device to move.

Compared with the prior art, the refrigerator provided by the embodiment of the application is provided with the door opening and closing driving device, the door opening and closing driving device is composed of a plurality of components comprising the clutch, and when the clutch connects all or part of the components with the first transmission piece on the movable piece, the door opening and closing driving device can drive the movable piece to move through the connecting device so as to close or open the opening of the storage chamber, so that the movable piece can be automatically opened and closed; when the clutch disengages all or part of the components from the first transmission piece on the moving piece, the moving piece is opened, and only the connecting device can be driven to move or part of the components in the connecting device and the door opening and closing driving device can be driven to move, so that the clutch is designed in the door opening and closing driving device and is close to the middle stage or the last stage of the connecting device, the no-load torque of the clutch is reduced, and the resistance when the moving piece is manually opened and closed is also reduced.

In some possible embodiments of the present application, the plurality of components in the door opening and closing driving device further include a driving member and a second transmission member, and the driving member is in transmission connection with the second transmission member; the clutch comprises a first half clutch and a second half clutch, the first half clutch can be disengaged or engaged with the second transmission piece, and the second half clutch is in transmission connection with the first transmission piece; or the first half clutch can be in transmission connection with the second transmission piece, and the second half clutch is disengaged or engaged with the first transmission piece.

In some possible embodiments of the present application, the plurality of components in the door opening and closing driving device further include a housing, a mounting cavity is formed in the housing, and the driving member, the second transmission member, and the clutch are all mounted in the mounting cavity.

In some possible embodiments of this application, the moving part is the door body, connecting device be with moving part fixed connection's hinge means, first driving medium is established for the cover articulated epaxial first transmission gear among the hinge means, be formed with second drive gear on the first half clutch, be formed with third drive gear on the second half clutch, the second driving medium is multiaxis linkage gear train, second drive gear with a gear engagement in the second driving medium, third drive gear with first transmission gear meshing, install the turbine on the gear shaft of second driving medium, the driving piece is the motor, install on the output shaft of driving piece with the worm of turbine meshing.

In some possible embodiments of the present application, the clutch is a dog clutch.

In some possible embodiments of the present application, the apparatus further comprises a controller, the controller comprising: the interaction module is used for carrying out information interaction with a user; and the control module is used for controlling the driving piece to run in a corresponding movement direction according to the user input information acquired by the interaction module.

In some possible embodiments of the present application, the controller further includes: the voice input module is used for receiving control voice of a user; the voice recognition module is used for carrying out instruction recognition on the user control voice received by the voice input module; the control module is further used for controlling the driving piece to operate in the corresponding movement direction when the instruction identified by the voice identification module is a door opening instruction or a door closing instruction.

In some possible embodiments of the present application, the method further includes: the detection device is used for detecting the position of the movable piece; the controller is in communication connection with the detection device and the driving piece, and is used for controlling the movement direction of the driving piece according to the position of the moving piece detected by the detection device so as to automatically open or close the moving piece.

In some possible embodiments of the present application, the detecting device is further configured to detect a moving direction of the movable member; the controller is further used for controlling the driving piece to run in a corresponding movement direction according to the movement direction of the moving piece detected by the detection device, so that the moving piece is automatically opened or closed.

In some possible embodiments of the present application, the door opening and closing driving device is installed on the movable member, the detecting device includes a plurality of optical detecting elements and an optical element, the optical detecting elements are distributed at intervals along the moving direction of the movable member and are disposed opposite to the optical element; when the clutch is capable of disengaging or engaging all of the plurality of members with the first transmission member, one of the plurality of optical detection members and the optical element is provided on the clutch, and the other of the plurality of optical detection members and the optical element is provided on the movable member; when the connecting device drives the clutch to move, the plurality of optical detection pieces can sequentially irradiate the optical element to output detection signals, and the controller is specifically used for determining the movement direction of the moving piece and controlling the driving piece to execute the corresponding movement direction according to the sequence of the detection signals fed back by the plurality of optical detection pieces so as to automatically open or close the moving piece.

In some possible embodiments of the present application, the optical element is disposed on the clutch, the surface of the clutch on which the optical element is mounted is a polished surface, the optical element is a light shielding plate, and the optical detection element is an optoelectronic switch.

Drawings

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

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

FIG. 2 is a schematic structural view of an opening door body of a refrigerator according to an embodiment of the present application;

FIG. 3 is a schematic structural view of another refrigerator door opening body according to the embodiment of the present application;

fig. 4 is an assembly view of the door opening and closing driving device and the connecting device in the refrigerator according to the embodiment of the present disclosure;

fig. 5 is an exploded view of the door opening/closing driving apparatus and the connecting apparatus in the refrigerator according to the embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of components in a housing of a door opening and closing driving device in a refrigerator according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a clutch of a door opening and closing driving device in a refrigerator according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of teeth on a clutch in a refrigerator according to an embodiment of the present disclosure;

FIG. 9 is an exploded view of a second clutch half and a detection device of the door opening/closing driving device of the refrigerator according to the embodiment of the present invention;

fig. 10 is a schematic structural diagram of a detection apparatus of a door opening and closing driving apparatus in a refrigerator according to an embodiment of the present application.

Reference numerals:

1-refrigerator, 100-storage chamber, 100A-freezing chamber, 100B-refrigerating chamber, 11-refrigerator body, 12-door body, 121-door body shell, 122-door body inner container, 123-upper end cover, 124-lower end cover, 13-connecting device, 131-hinge shaft, 132-hinge and 130-first transmission piece; 14-door opening and closing drive, 141-drive, 1411-worm, 142-second transmission, 1421-worm gear, 143-clutch, 1431-first half-clutch; 1431 a-teeth, 1432-second half-clutch, 1433-return spring, 1434-electromagnetic coil, 145-housing, 145 a-upper shell, 145 b-lower shell, 146-detection device, 1461-fixed plate, 1462-photoelectric switch; 1463-visor, 1463 a-notch.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description of the present application, "and/or" is only one kind of association relationship describing an associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 1 and 2 are perspective views of a specific embodiment of a refrigerator 1 according to an embodiment of the present application.

Referring to fig. 1 and 2, a refrigerator 1 according to an embodiment of the present invention has an approximately rectangular parallelepiped shape, a storage compartment 100 is formed in a cabinet 11 of the refrigerator 1 according to the embodiment of the present invention, the storage compartment 100 has an opening, and a movable member, such as a storage drawer or a door 12, is installed at the opening. The refrigerator 1 in the embodiment of the present application may have other shapes, and the shape of the refrigerator 1 is not limited.

With continued reference to fig. 1 and 2, the door 12 includes a door shell 121 located outside the storage compartment 100, a door liner 122 located inside the storage compartment 100, an upper end cap 123, a lower end cap 124, and a heat insulating layer located between the door shell 121, the door liner 122, the upper end cap 123, and the lower end cap 124; typically, the thermal insulation layer is filled with a foam material. The cabinet 11 has a structure similar to that of the door 12.

The storage compartment 100 is vertically partitioned into a lower freezing chamber 100A and an upper refrigerating chamber 100B, and each of the partitioned spaces may have an independent storage space, as shown in fig. 3. In fig. 1, the movable member at the opening of the refrigerating chamber 100B is a door 12, and the movable member at the opening of the freezing chamber 100A is a storage drawer.

If the movable member is a door 12, referring to fig. 3 and 4, the door 12 is rotatably connected to the cabinet 11 by a connecting device 13 to close or open the storage compartment 100. Referring to fig. 4 and 5, the connecting device 13 includes a hinge shaft 131 and a hinge 132, the hinge shaft 131 is rotatably connected to the box 11, and the hinge 132 is fixedly sleeved on the hinge shaft 131 and is fixedly connected to the door 12.

If the movable part is a storage drawer, the storage drawer is movably connected with the box body 11 through a connecting device 13, and if the storage drawer does linear motion. The connecting device 13 comprises a guide rail formed on the storage drawer and extending in the direction of the opening of the storage compartment 100, and a guide rod arranged on the cabinet 11, the end of which is slidably connected in the guide rail. Of course, the positions of the guide rail and the guide bar may be interchanged, and the guide bar may be replaced with a guide roller.

The movable member further has a first transmission member 130, and the first transmission member 130 is fixedly connected to the connecting device 13. The refrigerator 1 of the present application further includes a door opening and closing driving device 14, and the door opening and closing driving device 14 may be installed on the movable member, and may also be installed on the cabinet 11.

The door opening and closing driving device 14 is composed of a plurality of members, one of the plurality of members is a clutch 143, and the clutch 143 can disengage or engage all or part of the plurality of members with the first transmission member 130.

When the clutch 143 engages all or part of the plurality of members with the first transmission member 130, the door opening and closing driving device 14 can drive the movable member to automatically open or close by the connecting device 13.

When the clutch 143 disengages all or part of the plurality of components from the first transmission member 130, the movable member can move the connecting device 13 or move some of the components in the connecting device 13 and the door opening and closing driving device 14.

Compared with the prior art, the refrigerator 1 of the embodiment of the present application is provided with the door opening and closing driving device 14, and the door opening and closing driving device 14 is composed of a plurality of members including the clutch 143, when the clutch 143 engages all or part of the plurality of members with the first transmission member 130 on the moving member, the door opening and closing driving device 14 can drive the moving member to move through the connection device 13, so as to close or open the opening of the storage compartment 100, thereby realizing automatic opening and closing of the moving member, and improving the automation degree of the refrigerator 1; when the clutch 143 disengages all or part of the plurality of components from the first transmission member 130 on the movable member, the movable member is opened, and only the connecting device 13 can be driven to move, or part of the components in the connecting device 13 and the door opening and closing driving device 14 can be driven to move, so that the clutch 143 is designed in the door opening and closing driving device 14 near the middle stage or the last stage of the connecting device 13, and not only is the idle torque of the clutch reduced, but also the resistance when the movable member is manually opened and closed is reduced.

The components of the door opening and closing driving device 14 further include a driving element 141 and a second transmission element 142, and the driving element 141 is in transmission connection with the second transmission element 142.

The driving member 141 may be a cylinder, a hydraulic cylinder, or a motor. Taking the driving element 141 as an example of a motor, there are various transmission connection manners of the motor and the second transmission element 142, such as an output shaft of the motor is in transmission connection with the second transmission element 142 through a worm gear, and an output shaft of the motor is in transmission connection with the second transmission element 142 through gear engagement.

The second transmission member 142 can be implemented in various ways, such as a chain transmission device, a belt transmission device, or a gear transmission device. In some embodiments of the present application, the second transmission member 142 is a multi-shaft linkage gear set, the transmission efficiency of the gear transmission is high, and the multi-shaft linkage gear set can obtain a larger transmission efficiency in a smaller space. Therefore, on the basis of ensuring higher transmission efficiency, the second transmission member 142 of the embodiment of the present application has a compact structure and a smaller volume, and is suitable for a scheme in which the movable member is the door body 12.

It should be noted that, the moving part is the door body 12, and the first transmission member 130 may be a first transmission gear sleeved on the hinge shaft 131; the second transmission member 142 is a four-shaft linkage gear set, the driving member 141 shown in fig. 6 is a motor, a worm 1411 is mounted on an output shaft of the motor, a worm wheel 1421 is mounted on a gear shaft of the second transmission member 142 close to the motor, and the worm 1411 is meshed with the worm wheel 1421, so that the driving member 141 and the second transmission member 142 are in transmission connection. When the door body 12 is automatically opened and closed, the speed reduction effect of the movable part is good, and the transmission is stable.

The clutch 143 includes a first clutch half 1431 and a second clutch half 1432, the first clutch half 1431 can be disengaged or engaged with the second transmission member 142, and the second clutch half 1432 is in transmission connection with the first transmission member 130; alternatively, the first clutch half 1431 can be in driving connection with the second transmission part 142, and the second clutch half 1432 can be disengaged or engaged with the first transmission part 130. In the case where the door opening and closing driving device 14 further includes another transmission member, such as a third transmission member, the clutch 143 may be installed between the second transmission member and the third transmission member.

The clutch 143 may be an electromagnetic clutch, a magnetic powder clutch, a dog clutch, a friction clutch, or a hydraulic clutch. The clutch 143 in the embodiment of the present application is a dog clutch, and has the advantages of simple structure, small size of the outer contour, capability of transmitting large torque, and the like.

It should be noted that a second transmission gear is formed on the first half clutch 1431 of the clutch 143, a third transmission gear is formed on the second half clutch 1432, the second transmission gear is engaged with one gear of the second transmission member 142, and the third transmission gear is engaged with the first transmission gear. When the clutch 143 is switched to the disengaged state, the second clutch half 1432 is moved in the axial direction away from the first clutch half 1431, and the teeth of the second clutch half 1432 are disengaged from the teeth of the first clutch half 1431; when the clutch 143 is switched to the engaged state, the teeth of the first clutch half 1431 are engaged with the teeth of the second clutch half 1432.

The clutch 143 shown in fig. 7 is a dog clutch, and the clutch 143 further includes a return spring 1433 and an electromagnetic coil 1434, and when the clutch 143 needs to be switched to an engaged state, the electromagnetic coil 1434 is electrically connected, attracts the second half clutch 1432 to move in a direction close to the first half clutch 1431 in the axial direction, and compresses the return spring 1433; when the clutch 143 needs to be switched to the disengaged state, the electromagnetic coil 1434 is de-energized, and the force of the return spring 1433 drives the second clutch half 1432 to move axially away from the first clutch half 1431, so that the teeth of the second clutch half 1432 are disengaged from the teeth of the second clutch half 1432.

Referring to fig. 8, in the present embodiment, the total tooth height h of the tooth 1431a of the dog clutch is 1mm, and the included angle α between the root and the tooth surface of the tooth 1431a of the dog clutch is 150 °, so that the torque transmittable by the clutch 143 reaches 10N · m, and when the torque received by the clutch 143 exceeds 10N · m, the clutch 143 slips to prevent the gear of the opening and closing door driving device 14 from being damaged.

In some embodiments, referring to fig. 5, the door opening and closing driving device 14 further includes a housing 145, and the housing 145 includes an upper shell 145a and a lower shell 145b, and the upper shell 145a and the lower shell 145b are fastened to each other to define a mounting cavity, although the housing 145 may also be formed in other structures.

The driving member 141, the second transmission member 142 and the clutch 143 are all installed in the installation cavity, the door opening and closing driving device 14 is of an integral structure, the transmission connection position of the clutch 143 and the second transmission member 142 and the transmission connection position of the second transmission member 142 and the driving member 141 are reduced, the abrasion of the clutch 143 and the second transmission member 142 is reduced, and therefore the service life of the door opening and closing driving device 14 is prolonged.

Similarly, the hinge shaft 131 of the connecting device 13 in fig. 5 is also arranged in the shell 145 of the door opening and closing driving device 14, so that the abrasion of the transmission connection part of the hinge shaft 131 and the clutch 143 is reduced; the hinge 132 of the connecting device 13 is mounted outside the housing 145 of the opening/closing door drive 14.

The above-mentioned solution that the second transmission member 142 is a multi-axis linkage gear set is suitable for installing the second transmission member 142 in the shell 145 of the door opening and closing driving device 14, so that the volume of the door opening and closing driving device 14 is small, and the influence of the door opening and closing driving device 14 on the heat insulation performance of the refrigerator is small.

In order to improve the functional diversity of the refrigerator 1, the controller in the refrigerator 1 according to the embodiment of the present application includes an interaction module and a control module, the interaction module is configured to perform information interaction with a user, and the control module is configured to control the driving element 141 to operate in a corresponding movement direction according to user input information obtained through interaction, so as to open or close the moving element. Taking the driving member 141 as a motor as an example, the controller controls the motor to rotate forward to open the movable member; the controller controls the motor to rotate reversely, and the movable part is closed; or the controller controls the motor to rotate positively to close the movable part; the controller controls the motor to rotate reversely to open the movable piece. The interactive module can be a control button, a control knob or a touch pad, and the control module can be a control chip.

In addition, the controller in this embodiment of the application further includes a voice input module and a voice recognition module, where the voice input module is configured to receive a control voice of a user, the voice recognition module is configured to perform instruction recognition on the user control voice received by the voice input module, and the control module is further configured to control the driving element 141 to operate in a corresponding movement direction to open or close the moving element when the instruction recognized by the voice recognition module is an instruction to open or close the door. The voice input module is a microphone, and the voice recognition module can be a processing chip with a voice recognition function independently or a processing module with a voice recognition function integrated on the control module.

In order to improve the automation degree of the refrigerator 1, referring to fig. 5 and 9, the refrigerator 1 according to the embodiment of the present application further includes a detection device 146 and a controller, wherein the detection device 146 can detect the position of the moving element, the controller is in communication connection with both the detection device 146 and the driving element 141, and the controller can control the movement direction of the driving element 141 according to the position of the moving element detected by the detection device 146, so as to automatically open or close the moving element.

The detection device 146 is described below using a movable member as the door 12.

When the detection device 146 can detect that the door 12 is at the closed position, the controller can only control the driving member 141 to drive the door 12 to open. When the detection device 146 can detect that the door 12 is at the maximum opening position, the controller can only control the driving member 141 to drive the door 12 to close. When the detection device 146 can detect that the door 12 is in a half-open area (the half-open area means that the door 12 is in an open state, and the current opening angle of the door 12 is smaller than the opening angle when the door 12 is at the maximum open position), the controller may control the driving part 141 to drive the door 12 to open, and may also control the driving part 141 to drive the door 12 to close.

When the detection device 146 can detect that the door 12 is in the half-open area, the controller cannot intelligently determine whether the door 12 needs to be opened or closed. Therefore, in some embodiments of the present application, the detecting device 146 can also detect a moving direction of the door 12, and the controller is further configured to control the driving element 141 to operate the corresponding moving direction according to the moving direction of the door 12 detected by the detecting device 146, so as to automatically open or close the door 12.

For example, if the detection device 146 detects that the door 12 is in the movement direction of switching from the closing position to the half-opening area, the driving member 141 is controlled to drive the door 12 to open the door; if the detection device 146 detects that the door 12 is moving in the direction of decreasing the opening angle, the driving member 141 is controlled to drive the door 12 to close. For the latter condition, the door opening and closing driving device 14 can avoid the problem that the door body 12 is not completely closed.

In some embodiments, for the solution that the moving element is the door 12, the detecting device 146 is a gyroscope, the detecting device 146 is installed on the hinge shaft 131 at the connection between the door 12 and the cabinet 11 or on the door 12, and the detecting device 146 can detect the change of the rotation angle of the hinge shaft 131 or the door 12, so as to obtain the currently required movement direction of the door 12. For the case where the movable member is a storage drawer, the sensing device 146 may be a distance sensor.

In other embodiments, the detecting device 146 includes an optical detecting element, which may be a photoelectric switch or a photoelectric sensor, and the light source may be infrared light, natural light, or laser light. The optical detection piece in the embodiment of the application is a photoelectric switch, and has the advantages of high response speed, no influence of a magnetic field and vibration, long service life and the like.

Taking the latter scheme as an example, if the detection device 146 can only detect the position of the door 12, the detection device 146 includes only one optical detection element.

If the detecting device 146 can detect the position and the moving direction of the door 12 at the same time, the detecting device 146 includes a plurality of optical detecting members, the optical detecting members are distributed at intervals along the rotating direction (or the moving direction along the storage drawer) of the door 12, and the specific embodiment thereof has a plurality of embodiments.

For example, referring to fig. 3 to 5, the door opening and closing driving device 14 is mounted on the door body 12, the clutch 143 is drivingly connected to the hinge shaft 131, the clutch 143 is capable of disengaging from or engaging with the second transmission member 142, the plurality of optical detection members are disposed on the clutch 143, and the detection device 146 further includes an optical element disposed on the door body 12 at a position opposite to the plurality of optical detection members. When the hinge shaft 131 rotates and drives the clutch 143 to rotate, the plurality of optical detection members can sequentially irradiate the optical elements to output detection signals, and the controller is specifically configured to determine a rotation direction of the door body 12 and control the driving member 141 to operate a corresponding movement direction according to a sequence in which the plurality of optical detection members feed back the detection signals, so as to automatically open or close the door body 12. The installation positions of the optical detection pieces and the optical elements in the scheme can be interchanged.

For another example, the plurality of optical detection members are disposed on the hinge shaft 131 of the connecting device 13 (or the upper end cap 123 of the door 12), and the detection device 146 further includes an optical element disposed at a position opposite to the plurality of optical detection members on the box 11. When the hinge shaft 131 rotates, the plurality of optical detection members can sequentially irradiate the optical elements to output detection signals, and the controller is specifically configured to determine a rotation direction of the door body 12 according to a sequence of the detection signals fed back by the plurality of optical detection members, and control the driving member 141 to operate a corresponding movement direction, so as to automatically open or close the door body 12. Of course, the installation positions of the optical detection pieces and the optical elements in the scheme can be interchanged.

In some embodiments of the present application, the detecting device 146 further includes a fixing plate 1461, and a plurality of optical detecting members are disposed on the fixing plate 1461 to facilitate fixing and mounting of the plurality of optical detecting members. The fixing plate 1461 shown in fig. 5 is fitted around the rotating shaft of the clutch 143 and fixed to the inner wall of the housing 145 of the door opening/closing drive device 14, and a plurality of photoelectric switches 1462 are provided at intervals in the circumferential direction of the fixing plate 1461.

The detection device 146 in fig. 10 includes 6 photoelectric switches 1462, and the 6 photoelectric switches 1462 are numbered S1, S2, S3, S4, S5, and S6 in this order. If the controller sequentially receives the detection signals of the plurality of photoelectric switches 1462 with increasing numbers (for example, all 6 photoelectric switches S1, S2, S3, S4, S5 and S6 sequentially feed back the detection signals, or more than two photoelectric switches such as S2, S3 and S4 sequentially feed back the detection signals), it is determined that the door 12 rotates in the first direction. If the controller sequentially receives the detection signals of the plurality of photoelectric switches 1462 with the gradually decreasing numbering sequence (for example, all 6 photoelectric switches S6, S5, S4, S3, S2 and S1 sequentially feed back the detection signals, or more than two photoelectric switches such as S4, S3 and S2 sequentially feed back the detection signals), it is determined that the door body 12 rotates in the second direction, and the first direction is opposite to the second direction. If the first direction is the door opening direction, the second direction is the door closing direction, and if the first direction is the door closing direction, the second direction is the door opening direction.

The optical element is an optical plate, and the optical element can be a light shielding plate, a light reflecting plate or an optical plate with a light shielding area and a light reflecting area.

Taking an optical element as a light shielding plate 1463 and an optical detection element as a photoelectric switch 1462 as an example, the optical detection element may include a light emitting end and a receiving end, a surface where the light shielding plate 1463 is located is a polished surface, the light shielding plate 1463 has a notch 1463a, with rotation of the door body 12, when light emitted from the light emitting end of the photoelectric switch 1462 irradiates a polished surface area corresponding to the notch 1463a of the light shielding plate 1463, the light emitted from the light emitting end of the optical detection element is reflected by the polished surface, and the receiving end of the optical detection element receives the reflected light and outputs a first detection signal, which may be a "1" signal, for example. When the light emitted from the light emitting end of the photoelectric switch 1462 irradiates the light shielding plate 1463, the light emitted from the light emitting end is absorbed by the light shielding plate 1463, and the receiving end fails to receive the reflected light and outputs a second detection signal, which may be, for example, a "0" signal. It is understood that when the photoelectric switch 1462 and the light shielding plate 1463 rotate relatively, the plurality of photoelectric switches 1462 alternately output the first signal or the second signal.

Referring to fig. 9 and 10, a plurality of optical detectors are mounted on a fixing plate 1461, the fixing plate 1461 is mounted on an upper case 145a in a housing 145, an upper surface of a second clutch half 1432 of the clutch 143 is a polished surface, and a light shielding plate 1463 having a notch 1463a is provided on an upper surface of the second clutch half 1432 of the clutch 143.

When optical sheet 1461 is a reflection sheet having a notch, the surface of second clutch half 1432 to which the reflection sheet is attached is a frosted surface. When the optical plate 1461 is an optical plate having a light-shielding region and a light-reflecting region, the optical properties of the surface of the second half clutch 1432 on which the reflecting plate is mounted are not limited.

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

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, characterized by comprising:

a case in which a storage compartment having an opening is formed;

the movable piece is provided with a connecting device and a first transmission piece, the connecting device movably connects the movable piece to the box body so as to close or open the opening of the storage compartment, and the first transmission piece is fixedly connected with the connecting device;

the door opening and closing driving device is installed on the box body or the movable piece and consists of a plurality of components, one of the components is a clutch, and the clutch can enable all or part of the components to be disengaged or engaged with the first transmission piece;

when the clutch engages all or part of the plurality of components with the first transmission piece, the door opening and closing driving device can drive the movable piece to automatically open or close through the connecting device;

when the clutch disengages all or part of the plurality of components from the first transmission piece, the movable piece can drive the connecting device to move or drive some components in the connecting device and the door opening and closing driving device to move.

2. The refrigerator according to claim 1, wherein the plurality of components of the door opening and closing driving device further comprises a driving member and a second transmission member, wherein the driving member is in transmission connection with the second transmission member;

the clutch comprises a first half clutch and a second half clutch, the first half clutch can be disengaged or engaged with the second transmission piece, and the second half clutch is in transmission connection with the first transmission piece;

or the first half clutch can be in transmission connection with the second transmission piece, and the second half clutch is disengaged or engaged with the first transmission piece.

3. The refrigerator of claim 2, wherein the plurality of components of the door opening and closing driving device further comprises:

the shell, be formed with the installation cavity in the shell, driving piece, second driving medium reaches the clutch is all installed in the installation cavity.

4. The refrigerator according to claim 2 or 3, wherein the movable member is a door body, the connecting device is a hinge device fixedly connected with the movable member, the first transmission member is a first transmission gear sleeved on a hinge shaft in the hinge device, a second transmission gear is formed on the first half clutch, a third transmission gear is formed on the second half clutch, the second transmission member is a multi-shaft linkage gear set, the second transmission gear is meshed with one gear in the second transmission member, the third transmission gear is meshed with the first transmission gear, a gear shaft of the second transmission member is provided with a turbine, the driving member is a motor, and an output shaft of the driving member is provided with a worm meshed with the turbine.

5. The refrigerator of claim 1, wherein the clutch is a dog clutch.

6. The refrigerator of claim 1, further comprising a controller, the controller comprising:

the interaction module is used for carrying out information interaction with a user;

and the control module is used for controlling the driving piece to run in a corresponding movement direction according to the user input information acquired by the interaction module.

7. The refrigerator of claim 6, wherein the controller further comprises:

the voice input module is used for receiving control voice of a user;

the voice recognition module is used for carrying out instruction recognition on the user control voice received by the voice input module;

the control module is further used for controlling the driving piece to operate in the corresponding movement direction when the instruction identified by the voice identification module is a door opening instruction or a door closing instruction.

8. The refrigerator according to claim 1, further comprising:

the detection device is used for detecting the position of the movable piece;

the controller is in communication connection with the detection device and the driving piece, and is used for controlling the movement direction of the driving piece according to the position of the moving piece detected by the detection device so as to automatically open or close the moving piece.

9. The refrigerator according to claim 8, wherein the detecting means is further configured to detect a moving direction of the movable member;

the controller is further used for controlling the driving piece to run in a corresponding movement direction according to the movement direction of the moving piece detected by the detection device, so that the moving piece is automatically opened or closed.

10. The refrigerator according to claim 9, wherein the door opening and closing driving means is mounted on the movable member, the detecting means includes a plurality of optical detecting members and optical elements, the plurality of optical detecting members being spaced apart in a moving direction of the movable member and being disposed opposite to the optical elements;

when the clutch is capable of disengaging or engaging all of the plurality of members with the first transmission member, one of the plurality of optical detection members and the optical element is disposed on the clutch, and the other of the plurality of optical detection members and the optical element is disposed on the movable member;

when the connecting device drives the clutch to move, the plurality of optical detection pieces can sequentially irradiate the optical element to output detection signals, and the controller is specifically used for determining the movement direction of the moving piece and controlling the driving piece to execute the corresponding movement direction according to the sequence of the detection signals fed back by the plurality of optical detection pieces so as to automatically open or close the moving piece.