CN115247352A - Washing machine and control method thereof - Google Patents

Washing machine and control method thereof Download PDF

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Publication number
CN115247352A
CN115247352A CN202110461360.1A CN202110461360A CN115247352A CN 115247352 A CN115247352 A CN 115247352A CN 202110461360 A CN202110461360 A CN 202110461360A CN 115247352 A CN115247352 A CN 115247352A
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CN
China
Prior art keywords
door
positioning
module
washing
unlocking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110461360.1A
Other languages
Chinese (zh)
Other versions
CN115247352B (en
Inventor
刘凯
于明亮
陈超
侯永顺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Electric Appliance Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Drum Washing Machine Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Drum Washing Machine Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Drum Washing Machine Co Ltd
Priority to CN202110461360.1A priority Critical patent/CN115247352B/en
Priority to PCT/CN2022/087618 priority patent/WO2022228198A1/en
Priority to EP22794669.6A priority patent/EP4332292A1/en
Publication of CN115247352A publication Critical patent/CN115247352A/en
Application granted granted Critical
Publication of CN115247352B publication Critical patent/CN115247352B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/40—Opening or locking status of doors
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/44—Opening, closing or locking of doors

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The invention provides a washing machine, which comprises a washing drum, a washing drum and a control device, wherein the washing drum is rotatably arranged in the washing machine; the washing barrel door is arranged on the washing barrel and can correspondingly open and close the barrel opening of the washing barrel; the door lock module is used for locking the closed washing drum door; the washing machine further comprises a positioning and unlocking module which is provided with a positioning structure for locking the washing drum at a set position; and the unlocking structure is used for unlocking the door lock module under the trigger of the positioning structure after the washing drum is locked at the set position. The invention also provides a control method of the washing machine, when the door of the washing drum needs to be opened, the positioning unlocking module is controlled to lock the washing drum at a set position, and then the operation of opening the door of the washing drum is allowed. The washing machine and the control method thereof provided by the invention can ensure that the washing drum is locked at a preset position when the washing drum door is opened, and prevent the washing drum door from being opened in the running process of the washing drum.

Description

Washing machine and control method thereof
Technical Field
The invention relates to the field of drying household appliances, in particular to a washing machine and a control method thereof.
Background
The washing machine is provided with a door lock module for locking the machine door and an unlocking module for triggering the door lock module to unlock, and a positioning module capable of positioning the locking position of the washing drum and/or the machine door is arranged in part of the washing machine. But the unlocking module and the positioning module are not connected, namely the machine door is locked, the machine door is unlocked, and the washing drum and/or the machine door is unlocked independently. In the process of opening and closing the door, the washing machine is required to be stopped and the washing drum is required to be locked at a set locking position. Therefore, the danger caused by opening and closing the door in the operation process of the washing machine can be avoided, and the influence of the operation of opening and closing the door on the normal operation of the washing machine can be avoided. To sum up, the washing machine door structure which enables the positioning module to be linked with the unlocking module so as to ensure that the washing drum and/or the door are unlocked only after being locked at the preset position is absent at present.
And in the current control method of the washing machine, the detection of whether the washing drum is locked at the set position in the process of closing the machine door of the washing machine is lacked.
The present invention has been made in view of the above problems.
Disclosure of Invention
The invention aims to provide a washing machine, which can ensure that a washing drum is unlocked after being locked at a preset position and can position the washing drum in the process of opening and closing a machine door. The invention also aims to provide a control method of the washing machine, which can ensure that the washing drum is locked in the process of closing the washing machine door.
The invention provides a washing machine, which comprises a washing drum, a washing drum and a control device, wherein the washing drum is rotatably arranged in the washing machine; the washing barrel door is arranged on the washing barrel and can correspondingly open and close the barrel opening of the washing barrel; the door lock module is used for locking the closed washing drum door; the washing machine further comprises a positioning and unlocking module which is provided with a positioning structure for locking the washing drum at a set position; and the unlocking structure is used for unlocking the door lock module under the trigger of the positioning structure after the washing drum is locked at the set position. The washing machine provided by the invention can realize the positioning of the washing drum in the process of opening and closing the machine door and can ensure the unlocking after the washing drum is positioned.
The positioning and unlocking module comprises a door opening rod and a positioning rod, and the door lock module comprises a limiting block for limiting the machine door to keep a locking state; the locating rod can independently stretch into a locating hole arranged on the washing drum and/or the machine door, or the locating rod drives the door opening rod to contact and trigger the limiting block to move after stretching into the locating hole.
Further, the positions of the specific door lock module and the positioning unlocking module are as follows: the door lock module is fixed on the washing barrel door, and the positioning unlocking module is fixed on the outer barrel wall.
Furthermore, an outer barrel front flange is arranged at the position, opposite to the washing door, on the outer barrel, an unlocking hole for the door opening rod to pass through is formed in the outer barrel front flange, and the door opening rod is in contact fit with the limiting block through the unlocking hole; and a sealing piece is arranged at the unlocking hole. In the unlocking process, the door opening rod for positioning the unlocking module needs to penetrate through an unlocking hole in the front flange of the outer barrel, and the front flange of the outer barrel may contact water, so a sealing element can be arranged at the unlocking hole for sealing.
Furthermore, the washing machine comprises a door lock detection module, a positioning unlocking module and a washing barrel door unlocking module, wherein the door lock detection module detects the locking condition of the door lock module on the washing barrel door, detects whether the positioning unlocking module locks the washing barrel to a set position or not, and detects the unlocking condition of the positioning unlocking module on the washing barrel door.
The invention also provides a control method of the washing machine, which is provided with the washing machine, when the door of the washing drum needs to be opened, the positioning unlocking module is controlled to lock the washing drum at a set position, and then the operation of opening the door of the washing drum is allowed. The control method of the washing machine provided by the invention can ensure that the door is opened after the washing drum is locked at the preset position, prevent the danger caused by opening the door in the movement process of the washing machine and ensure the normal operation of the door opening operation.
Furthermore, the door lock detection module detects whether the positioning unlocking module completes locking the washing drum at a set position, controls the positioning unlocking module to unlock the door lock module after determining that the washing drum is locked at the set position, and detects that the positioning unlocking module allows the washing drum door to be opened after completing unlocking.
Further, the specific operations when opening the washing tub door include: when the positioning and unlocking module is controlled to lock the washing drum at a set position, the positioning rod of the positioning and unlocking module is controlled to extend into the positioning hole; the door lock detection module is used for controlling the door lock detection module to detect the position of the positioning rod when detecting whether the positioning unlocking module finishes locking the washing drum at the set position; when the control positioning unlocking module unlocks the door lock module, the positioning rod of the control door lock module drives the door opening rod to contact and trigger the limiting block to move after extending into the positioning hole.
Further, the control method for closing the machine door comprises the following steps: after a washing drum door is opened and clothes are put in, and the washing drum door needs to be closed, controlling a door lock detection module to detect whether a positioning unlocking module still keeps locking the washing drum at a set position or not, and allowing the washing drum door to be closed after determining that the positioning unlocking module still keeps locking the washing drum at the set position; when the machine door is closed, the door lock module is controlled to lock the washing drum door, the door lock detection module detects whether the washing drum door is locked, and after the washing drum door is confirmed to be locked, the positioning unlocking module is controlled to release the limitation of locking the washing drum at a set position; the control door lock detection module detects whether the limit of the washing drum locked at the set position is released by the positioning unlocking module, and the washing machine is allowed to run after the limit of the washing drum locked at the set position is confirmed to be released.
Further, when the door lock detection module is controlled to detect whether the positioning unlocking module still keeps locking the washing drum at the set position, the door lock detection module detects whether the positioning rod extends into the positioning hole;
when the control positioning unlocking module releases the limitation of locking the washing drum at the set position, the control positioning unlocking module controls the positioning rod of the positioning unlocking module to extend out of the positioning hole; and when the control door lock detection module detects whether the positioning unlocking module releases the limitation of locking the washing drum at the set position, the door lock detection module detects whether the positioning rod extends out of the positioning hole.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1) The washing machine provided by the invention is internally provided with the door lock module which can be triggered to be locked by the door closing action, is relatively suitable for a washing drum door arranged on a washing drum, and can ensure that the washing drum door rotating along with the washing drum does not need to be controlled by an electric signal.
2) The positioning unlocking module in the washing machine provided by the invention is reasonable in arrangement, can lock the door of the washing drum at a preset position, and can ensure that the washing drum is unlocked after being locked at the preset position.
2) In the washing machine door system, the door lock module and the positioning and unlocking module are arranged at reasonable positions, and the positioning and unlocking module is arranged on the outer barrel, so that the influence on the normal operation of the inner washing barrel can be avoided. The washing machine is also provided with a door lock detection module which can comprehensively detect the locking condition of the washing drum, the condition that the door of the washing drum is locked by the door lock module and the unlocking condition of the positioning unlocking module.
3) The installation positions of the positioning and unlocking module and the door lock module of the washing machine are reasonably arranged, so that the positioning and unlocking module is prevented from influencing the normal operation of the washing machine. And a sealing element is arranged at the position of the outer cylinder front flange through which a door opening rod of the positioning unlocking module needs to pass, so that the sealing property can be ensured.
4) The invention also provides a control method of the washing machine, which ensures that the washing drum is locked at a preset position in the process of opening and closing the machine door and ensures the normal operation of opening and closing the machine door. And after the operation of opening and closing the machine door is finished, the washing drum is still kept at the preset locking position, so that when the washing drum is washed later, the washing drum starts to operate from the locking position
6) The control method of the washing machine door also reasonably designs the operations that the inner door and the washing machine door need to be respectively operated when the door is opened and closed, thereby ensuring the normal operation of opening and closing the door.
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.
FIG. 1 is an external overall schematic view of a door latch module according to the present invention;
FIG. 2 is a schematic view of the locking portion and the limiting block when the door is unlocked;
FIG. 3 is a schematic view of a stopper locking portion of the present invention;
FIG. 4 is a schematic view of the combination of the manual door opening block and the limiting block of the present invention;
FIG. 5 is an overall external schematic view of the positioning and unlocking module of the present invention;
FIG. 6 is a schematic view of the internal structure of the positioning and unlocking module housing of the present invention;
FIG. 7 is a schematic view of a door lock detection module of the present invention;
FIG. 8 is a schematic view of the door system of the present invention;
FIG. 9 is a schematic view of the door lock module and the positioning and unlocking module of the present invention;
FIG. 10 is a schematic view of the steps of the present invention for opening the door;
fig. 11 is a schematic view of the operation steps of the closing door of the present invention.
The reference numbers in the figures indicate:
1. a door hook; 2. a limiting block; 3. a housing; 4. a locking portion; 5. an end face; 6. a first limiting surface; 7. A guide ramp; 8. a second limiting surface; 9. a third limiting surface; 10. a support bar; 11. a torsion spring; 12. a hook part; 13. a clamping hole; 14. a guide rail; 15. a fixed part; 16. an opening; 17. a manual door opening block; 18. a first contact surface; 19. a second contact surface; 20. a button; 21. a housing; 22. positioning a rod; 23. a door opening lever; 24. a motor; 25. an output gear; 26. a first gear module; 27. a second gear module; 28. a running block; 29. a second rack; 30. a third rack; 31. a third gear module; 32. a first rack; 33. A fourth gear module; 34. a protrusion; 35. a first gear; 36. a second gear; 37. a visor; 38. A photovoltaic panel; 39. a guide hole; 40. a door lock module; 41. positioning an unlocking module; 42. a washing tub door; 43. A washing machine door; 44. a limiting post.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
The invention provides a washing machine, wherein a washing drum for washing clothes is arranged in the washing machine, and a washing drum door 42 is arranged on the washing drum. A support housing and/or tub is provided on the exterior of the wash tub, and a washer door 43 is provided on the support housing and/or tub at a position opposite the wash tub door 42 of the wash tub.
The washing machine is provided with a door lock system for locking and unlocking the machine door, wherein the door lock system comprises a door lock module 40 which can lock the machine door after the machine door is closed; the washing machine comprises a positioning unlocking module 41 which can correspondingly unlock the door lock module 40, and the positioning unlocking module 41 can also realize the positioning of the locking position of the washing drum. The door lock structure may be applied to the washing machine door 43 and/or the washing tub door 42.
In particular, the door lock module 40 may be applied to the washing tub door 42, and also to the washing machine door 43. The door lock module 40 includes a door hook fixed to the door, and a locking device fixed to the washing drum or the support housing, and the door hook may correspondingly extend into the locking device when the door is closed, and may be hooked by the locking device to lock the door. For example, a door hook may be provided on the washing tub door 42, and a locking device may be provided on the washing tub to lock the washing tub door 42. Or a door hook can be arranged on the washing machine door 43 and a locking device can be arranged on the supporting shell to realize the locking of the washing machine door 43.
The positioning and unlocking module 41 is provided with a positioning rod 22, and the positioning rod 22 can realize the positioning of the position by penetrating into a positioning hole; the positioning unlocking module 41 is also provided with a door opening rod 23, and the door opening rod 23 can excite a door hook of the door lock module 40 to be separated from the locking device after expected movement, so that the machine door can be unlocked; namely, the positioning and unlocking module 41 provided by the invention not only can realize positioning, but also can realize unlocking function. In order to unlock the washing drum door 42, the positioning and unlocking module 41 can be arranged on the washing drum opposite to the door lock device on the washing drum door 42, and the positioning hole is arranged on the washing drum front flange, so that the locking position of the washing drum and the washing drum door 42 can be positioned. Or to effect unlocking of the washing machine door 43, a positioning unlocking module 41 may be provided on the support housing.
From the above, the door lock system of the washing machine provided by the invention can respectively realize independent opening or locking of the washing drum door 42 and the washing machine door 43, and can also realize positioning of locking positions of the washing drum and the washing machine door. The invention also provides a control method for correspondingly controlling the inner and outer double-layer machine doors aiming at the structure of the door lock system, and the control method provided by the invention can ensure reasonable control on opening or closing of the double-layer machine doors.
Example 1
The embodiment provides a door lock module 40 for locking and unlocking a machine door, wherein the door lock module 40 comprises a door hook 1 fixed with the machine door, and the door hook 1 moves along with the machine door in the process of closing the machine door. The door lock module 40 further includes a lock body for locking the door hook 1. The lock body is provided with a shell, and when the machine door is closed, the door hook 1 correspondingly extends into the lock body along with the machine door and is locked by the machine body, so that the machine door is locked.
The lock body comprises a locking part 4 capable of rotating, the locking part 4 can hook the door hook 1 during rotating along a certain direction, and the locking part can be separated from the door hook 1 during moving along the opposite direction. The lock body also comprises a limiting block 2 for limiting the motion state of the locking part 4. When the door hook 1 is hooked by the locking part 4, the limiting block 2 is abutted to the locking part 4, so that the locking part 4 is kept immovable, and the locking part 4 is ensured to lock the door hook 1 continuously and stably. When the door needs to be unlocked, when the limiting block 2 moves, the limiting of the locking part 4 is released, the locking part 4 rotates in the reverse direction, and then the locking structure is separated from the door hook 1, so that the unlocking of the door is realized.
As shown in fig. 1, the lock body includes a housing 3, and a locking part 4 is rotatably provided in the housing 3. Specifically, a support rod 10 is erected in the housing 3, two ends of the support rod 10 are fixed on the housing 3 of the lock body, a rotatable locking portion 4 is sleeved on the support rod 10, and the locking portion 4 is fixed inside the housing 3 through the support of the support rod 10. The stopper 2 has a structure similar to an "L" shape, and the locking portion 4 is embedded in a gap of the "L" shape on the stopper structure when the locking device does not start moving. The "L" shaped structure consists of a vertical restraint post 44 and a horizontal base perpendicular thereto. When the limiting block 2 is embedded in the gap of the L-shaped structure, the end surface 5 of the locking part 4 perpendicular to the rotating shaft is abutted against the first limiting surface 6 opposite to the limiting column 44. Namely, at the beginning of the movement, the locking part 4 is embedded with the limiting block 2 for limiting. A pressure spring is arranged between the end part of one side of the limiting block 2, which is vertical to the rotating shaft of the locking part 4, and the shell 3, and the limiting block 2 compresses the pressure spring when the limiting block is static at the beginning of movement. That is, when the locking portion 4 is in a static state, the stopper 2 is stopped by the static locking portion 4, and the stopper 2 compresses the compression spring.
When the door hook 1 contacts and triggers the locking part 4 to rotate, the locking part 4 rotates, the locking part 4 releases the motion limitation of the limiting block 2, and therefore the limiting block 2 starts to move under the action of the pressure spring. As shown in fig. 2 and 3, a guide slope 7 is provided on the stopper post 44 at a vertex angle position opposite to the rotating lock portion 4. The locking portion 4 that starts to rotate may come into cooperative contact with the guide slope 7 on the moving stopper 2. The locking portion 4 rotates in accordance with a set trajectory by being guided by the guide slope 7 in contact therewith.
The guide slope 7 is a slope gradually expanding downward from the top of the stopper post 44, and is shaped such that the locking portion 4 contacting the guide slope 7 is easily rotated clockwise by the guide of the guide slope 7. The door that easily catches on colludes 1 is colluded to clockwise rotation's sticking department 4, and catches on the door and collude 4 behind 1 sticking department and can finally be spacing butt mutually with stopper 2, and locking portion 4 is pinned by stopper 2 promptly. That is, the guide slope 7 is provided to guide the locking part 4 to rotate according to a set trajectory and to hook the door hook.
The specific structure of the abutment of the position-limiting post 44 and the locking portion 4 hooking the door hook 1 is shown in fig. 3: the stopper post 44 has a second stopper surface 8 parallel to the rotation axis of the lock portion 4, and the lock portion 4 has a third stopper surface 9 parallel to the rotation axis. The second stopper surface 8 of the stopper post 44 is in stopper abutment with the third stopper surface 9 of the rotated lock portion 4. Namely, the limit post 44 can lock the locking part 4 hooked on the door hook 1, so as to lock the door. The second stopper surface 8 on the stopper post 44 is connected to the guide slope 7, and the second stopper surface 8 is provided on the side close to the rotating lock portion 4. The locking part 4 guided to rotate by the guide inclined surface 7 rotates to be in limit abutment with the second limit surface 8 on the limit post 44, namely, the limit block 2 can realize locking of the locking part 4. Correspondingly, when the unlocking is needed, only the limiting block 2 needs to be excited to move, the second limiting surface 8 and the third limiting surface 9 are relieved from limiting, and the locking part 4 rotates in the opposite direction under the action of the torsion spring 11, so that the locking part 4 is separated from the door hook 1.
As shown in the drawing, a part of the stopper 2 is disposed outside the housing 3 so that other structures can push the stopper 2. When the machine door is in a locking state, the pressure spring arranged on the limiting block 2 is in a state of compressing and storing force. When the machine door needs to be unlocked, other structures push the part of the limiting block 2, which is positioned outside the shell 3, and the limiting block 2 generates unlocking motion under the action of the pressure spring. Further, as mentioned above, the door hook 1 is separated from the locking structure, and the door is unlocked. Specifically, one end of the limiting block 2, which is not provided with the pressure spring, extends to the outside of the shell 3, and the part extending to the outside of the shell 3 is used for other devices to excite the limiting block 2 to move.
The specific structure of the door hook 1 is shown in the figure, the door hook 1 comprises a fixing part 15 fixed with the machine door, the fixing part 15 can be provided with a screw hole and a bolt hole, and the door hook 1 is fixed on the machine door through threaded connection. Or the fixing part 15 can be provided with other fixing structures such as a buckle and the like to fix the door hook 1 on the machine door. In this embodiment, a screw is used as an example, and a screw hole is provided on the door hook 1. Set up the mounting groove that the installation door colluded 1 on the machine door, can embed the door in the mounting groove and collude fixed part 15 of 1, collude fixed part 15 that 1 fixed in the mounting groove with the door through threaded connection. The fixing part 15 of the door hook 1 is arranged outside the shell 3 and fixed on the machine door, and the door hook 1 further comprises a clamping hook part 12 connected with the fixing part 15. The hook 12 extends from the connection position with the fixing portion 15 to the inside of the housing 3, and a part of the structure of the hook 12 extending to the inside of the housing 3 is provided with a locking hole 13. When needs locking quick-witted door, door hook 1 is door motion back at random, and door hook 1's trip portion 12 contacts with locking structure, and trip portion 12 triggers sticking department 4 rotatory, and the partial structure inlay card of sticking department 4 is connected through the inlay card of trip and sticking department 4 promptly in card hole 13, makes door hook 1 by the locking, and then locking machine door. The door hook 1 needs to move according to a preset track, so that the clamping hole 13 on the door hook 1 is in clamping and embedding fit with the locking part 4, and a locking machine door is further guaranteed. In order to better define the trajectory of the door hook 1, a guide 14 for the movement of the door hook 1 is provided in the housing 3 of the locking mechanism. The guide rail 14 extends from the top end of the housing 3 opposite to the door hook 1 toward the inside of the housing 3. The trip portion 12 of door hook 1 is embedded in guide rail 14, and when door hook 1 carried out locking and unblock motion, trip portion 12 all can be followed the direction operation that guide rail 14 set for, and then as above, guarantees that the quick-witted door is by normal locking and unblock.
As shown in fig. 3, when the door is closed, the door hook 1 extends into the locking portion 4, the door hook 1 contacts with the locking portion 4 arranged oppositely, and the locking portion 4 is triggered to be clamped in the clamping hole 13 of the door hook 1. The locking part 4 is provided with a C-shaped structure with an opening 16 facing the clamping hole 13, and the opening 16 of the C-shaped structure can be clamped and embedded in the clamping hole 13 of the door hook 1. The structure of the locking part 4 is rotated under the contact action of the door hook 1, and in the rotating process, the clamping hole 13 of the door hook 1 is clamped and embedded with the opening 16 of the C-shaped structure. And simultaneously, stopper 2 removes the position of "C" type structure looks butt, makes door collude 1 and keeps being blocked by "C" type structure, and then realizes the locking to the quick-witted door. Specifically, as described above, the second stopper surface 8 of the stopper 2 is in stopper abutment with the third stopper surface 9 of the locking portion 4. Wherein the third stopper surface 9 is a surface of the door opposite to the opening 16 in the "C" shaped structure of the locking portion 4. The locking structure is further provided with a torsion spring 11, so that the locking part 4 of the locking structure rotates when the locking structure is unlocked, and the C-shaped structure of the locking part 4 is separated from the door hook 1. The torsion spring 11 is specifically sleeved on the support rod 10 and is arranged on two end faces of the locking part 4 perpendicular to the rotation axis.
The structure of the limiting block 2 in the door lock module 40 provided by this embodiment is reasonably arranged, the limiting block 2 includes a plurality of end faces which can contact with the locking portion 4, the locking portion 4 can be limited by the limiting block 2 and can not rotate when being static through the arrangement of the end faces, the locking portion 4 is guided by the limiting block 2 to rotate according to a set track after being triggered to move, and the locking portion 4 is locked by the limiting block 2 after hooking the door hook 1. The door lock module 40 that this embodiment provided is structural setting reasonable for the accessible promotes the part that stopper 2 is located the shell 3 outside and can realize the locking and the unblock to the quick-witted door. And the locking and unlocking of the machine door can be realized only by moving the limiting block 2, and the operation is simpler.
Example 2
The embodiment provides a door lock module 40 on the basis of embodiment 1, the door lock module 40 has the door hook 1, the locking portion 4 and the limiting block 2 as described above, similarly, the door hook 1 can be mutually embedded with the locking portion 4 to lock the door, and the limiting block 2 is used to keep the door hook 1 stably embedded with the locking portion 4 or make the door hook 1 separate from the locking portion 4. The difference between the door lock module 40 of this embodiment and the door lock module 40 of embodiment 1 is that the door lock module 40 of this embodiment is provided with a manual door opening block 17 for manually controlling the movement of the limiting block 2, so that the door lock module 40 can be manually controlled to unlock the door. In embodiment 1, it is mentioned that the limiting block 2 of the door lock module 40 can be automatically triggered to move by using another structure outside the door lock module 40, so as to automatically unlock the door. In case of a problem, the device for automatically unlocking and supplying energy to the machine door can cause the machine door to be unlocked normally, and the use of the washing machine is influenced. The door lock module 40 provided by the embodiment has the advantages that the manual door opening block 17 is arranged inside, so that unlocking can be triggered manually under any condition, and the door can be normally unlocked and used.
As shown in fig. 1, the housing 3 of the door lock module 40 is provided with a mounting hole into which the manual door opening block 17 is inserted. A raised button 20 is provided on the top of the manual opening block 17 to facilitate pressing the manual opening block 17 downward. Preferably, the button 20 protrudes from the surface of the housing 3 of the door-lock module 40, so that the button 20 can be pressed when necessary. The manual opening block 17 inserted into the housing 3 and the stopper have end surfaces that contact each other. The end surfaces which are contacted with each other are respectively a first contact surface 18 on the limiting block 2 and a second contact surface 19 on the manual door opening block 17,
as shown in fig. 4, the limiting block 2 is provided with a contact portion capable of contacting with the embedded manual door opening block 17, the contact portion is disposed on one side of the limiting block 2 close to the manual door opening block 17 and opposite to the manual installation block, a first contact surface 18 is disposed on the contact portion, and the first contact surface 18 is a curved surface protruding outwards. The second contact surface 19 on the manual opening block 17 is accordingly designed as a ramp that gradually widens from the bottom upwards. When the button 20 is pressed, the manual door opening block 17 moves downward. At this time, due to the shape characteristics of the first contact surface 18 and the second contact surface 19, the second contact surface 19 will push the first contact surface 18, i.e., trigger the stopper 2 to move. The pressure spring of 2 afterbody on the stopper is in compression state when the state of quick-witted door locking, and in case stopper 2 is triggered the motion, the pressure spring just can drive stopper 2 and locking structure and break away from, and then makes door collude 1 and locking structure break away from, accomplish the unblock of quick-witted door.
The manual installation block is also provided with a pressure spring, and the pressure spring can be arranged at the bottom of the manual installation block. After the button 20 on the manual installation block is pressed to unlock, the manual installation block is reset under the action of the pressure spring. The manual installation piece is at the in-process that resets, and second contact surface 19 and first contact surface 18 cooperate spacingly, and second contact surface 19 is blocked by first contact surface 18 finally, guarantees that manual opening block 17 resets to predetermined position to guarantee that manual installation piece can be by normal use next time.
According to the door lock module 40 provided by the embodiment, the manual door opening block 17 is arranged in the locking device, so that the door can be manually unlocked under any condition.
Example 3
The embodiment provides a positioning and unlocking module 41 of a washing machine door, which is used for unlocking the door and positioning a locking position, wherein the positioning and unlocking module 41 is suitable for all washing machine doors, in particular for unlocking a washing drum door 42 arranged on a washing drum. The positioning and unlocking module 41 is shown in fig. 5, and has a door opening rod 23, a positioning rod 22; the positioning and unlocking module 41 is configured to enable the positioning rod 22 to position the locking position, and enable the door opening rod 23 to unlock the door.
When the positioning and unlocking module 41 is in the natural initial state, both the positioning lever 22 and the door-opening lever 23 remain stationary inside the positioning and unlocking module 41. When the positioning and unlocking module 41 performs positioning and unlocking, two stages of movement can be experienced. The first stage is a positioning stage, in which the positioning rod 22 extends to the outside of the positioning and unlocking module 41 and extends into a correspondingly arranged positioning hole for positioning the positioning rod 22, and the positioning rod 22 passes through the positioning hole to limit the washing drum. The locating holes may be located on the wash tub door 42 and/or the wash tub, and when the washing machine is stopped, the wash tub and the wash tub door 42 will be stopped at a predetermined position, which is opposite to the position of the locating lever 22. The positioning rod 22 is controlled to extend into the positioning hole, so that the washing drum and/or the washing drum door 42 can be locked at a preset position. Specifically, the positioning hole may be provided on the outer cylinder front flange. Once the washing machine stops running, the washing drum door 42 and the washing drum will stop at the preset positions, at this time, the positioning hole on the front flange of the washing drum is opposite to the positioning rod 22, and the positioning rod 22 is controlled to move downwards to the positioning hole, so that the positioning of the locking position of the washing drum and/or the washing drum door 42 can be completed.
In order to ensure the positioning accuracy, a guide rail groove can be arranged at the position of a positioning hole of a front flange of the washing drum, and the motion trail of the positioning rod 22 can be accurately limited by embedding the positioning rod 22 in the guide rail groove. The positioning rod 22 can also be provided with a slide block, and the guide rail groove is provided with a groove for clamping and embedding the slide block. After the positioning rod 22 completes the positioning movement, the slider can be controlled to be embedded into the groove. Thus, by providing the detection means in the guide rail groove and/or the recess, the detection means can detect whether the positioning is completed, i.e. if the positioning is successful, the positioning rod 22 and/or the slide block should be moved to a predetermined position in the guide rail groove and/or the recess, and the detection means can detect the positioning rod 22 and/or the slide block. The positioning and unlocking module 41 provided by the embodiment can not only utilize the positioning rod 22 to position the locking positions of the washing drum and the machine door, but also detect whether the positioning is successfully completed through the detection device.
In the positioning stage, the door opening lever 23 moves in the horizontal direction to the outside of the positioning unlocking module 41, that is, the door opening lever 23 moves toward the door lock module 40, so that the door lock module 40 is activated to unlock after the door opening lever 23. At the positioning stage, the positioning rod 22 extends into the positioning hole, and the door opening rod 23 extends for a certain distance to the door lock module 40, so that when the unlocking movement operation is performed again, the door opening rod 23 can extend out to contact with the door lock module 40 to activate the unlocking operation when continuing to extend out. In the present embodiment, the door opening lever 23 moves in the horizontal direction, and the positioning lever 22 moves in the vertical direction. In fact, the desired movement trajectories of the door opening lever 23 and the positioning lever 22 can also be adjusted. The structure of the positioning and unlocking module 41 in this embodiment can realize the movement direction in which the door opening rod 23 and the positioning rod 22 are perpendicular to each other, and after the installation angle of the positioning and unlocking module 41 is changed, the door opening rod 23 can move in the vertical direction, and the positioning rod 22 moves in the horizontal direction.
After the positioning phase is completed, the positioning and unlocking module 41 enters the unlocking phase. In the unlocking stage, the door opening rod 23 continues to position the unlocking module 41 to move outside along the horizontal direction, and the door opening rod 23 contacts and excites the door lock module 40 on the machine door, so that the door lock module 40 is unlocked. The positioning and unlocking module 41 of the embodiment firstly passes through the positioning stage and then the unlocking stage during the operation, so that the washing drum and the machine door are ensured to be locked at the preset positions and then unlocked, and the washing drum and the machine door are ensured to be locked at the preset positions in the unlocking process. When the door is locked, the positioning rod 22 and other structures in the positioning and unlocking module 41 of the present embodiment can be used to ensure that the washing drum and the door are locked at the preset positions. That is, the positioning and unlocking module 41 provided in this embodiment can lock the washing drum at a preset position in the process of opening and closing the door of the washing machine.
As shown in fig. 6, the positioning and unlocking module 41 includes a first drive system that powers the positioning stage motion. The first driving system includes a motor 24, the motor 24 includes an output shaft for outputting a rotational motion, an output gear 25 is sleeved on the output shaft, the output gear 25 is meshed with the first gear 35, the first gear module 26 is mainly used for reducing the speed and transmitting the rotational motion, and the first gear module 26 is a reduction gear set. The first gear module 26 includes a first gear 35 with a large number of teeth and a second gear 36 with a small number of teeth, and the first gear 35 and the second gear 36 are coaxially disposed. The output gear 25 is engaged with the first gear 35 with a large number of teeth, and the first gear 35 rotates to drive the second gear 36 to rotate. I.e. the connection of the module 26 with the first gear 35 via the output gear 25, causes the rotational movement output by the motor 24 to be decelerated.
The first gear module 26 is in meshing engagement with the second gear module 27, in particular, the second gear 36 of the first gear module 26 is in meshing engagement with the second gear module 27. The second gear module 27 provides power for the expected movement of the door opening rod 23 and the positioning rod 22, i.e. the second gear module 27 drives the positioning rod 22 to move downwards, and drives the door opening rod 23 to move outwards for a certain distance through the third gear module 31. The second gear module 27 needs to bear a large force because the second gear module 27 provides power to the positioning rod 22 and the door opening rod 23 at the same time, so that the strength of the second gear module 27 needs to be enhanced, and specifically, as shown in the figure, a reinforcing rib may be provided on the second gear module 27.
It should be noted here that the third gear module 31 is provided for the purpose of: therefore, in the unlocking stage, the door opening rod 23 extends outwards for a certain distance, and when the positioning rod 22 continues to drive the door opening rod 22 to extend outwards again in the unlocking stage, the total length of the outward extension of the door opening rod 23 is ensured, and the door opening rod 23 can contact the door lock module to trigger unlocking. The first gear module 26, the second gear module 27, and the third gear module 31 are fixed gears having fixed rotation shafts.
As shown in fig. 6, the positioning and unlocking module 41 further includes a running block 28, the running block 28 embeds the positioning rod 22, and the positioning rod 22 is movable together with the running block 28. A second rack 29 is arranged on the running block 28 at a position opposite to the second gear module 27, and the second rack 29 is engaged with the second gear module 27. The second gear module 27 can drive the second rack 29 to move, and further drive the operation block 28 and the positioning rod 22 to move, so that the positioning rod 22 can realize the positioning movement. I.e. the second gear module 27 is realised to power the movement of the positioning rod 22 during the positioning phase by being connected to the second gear rack 29.
The positioning and unlocking module 41 has a housing 21, the first gear module 26, the second gear module 27 and the third gear module 31 are all disposed in the housing 21, and the positioning rod 22 and the door opening rod 23 can be retracted in the housing 21, which results in more structures in the housing 21, and in order to save the space of the housing 21 and prevent the mutual interference of the structures of the portions disposed in the housing 21, the space needs to be reasonably arranged in the housing 21. Specifically, the rotation axis of the second gear module 27 is arranged in parallel with the rotation axis of the motor 24, the second gear module 27 has a vertical center plane passing through the rotation axis, the first gear module 26 and the third gear module 31 are arranged on the same side with respect to the vertical center plane, and the positioning rod 22 is arranged on the other side with respect to the vertical center plane. The positioning rod 22 and the third gear module 31 are respectively arranged on the two sides of the second gear module 27, so that the movement of the positioning rod 22 and the movement of the door opening rod 23 do not interfere with each other. And since the first gear module 26, the second gear module 27 and the third gear module 31 are connected in sequence, that is, there must be a height difference between the first gear module 26 and the third gear module 31, the first gear module 26 and the third gear module 31 can be arranged on the same side.
According to the above structure, in the positioning stage, the positioning and unlocking module 41 can simultaneously control the door opening rod 23 and the positioning rod 22 to move, the motor 24 firstly drives the first gear module 26 to rotate at a reduced speed, then the first gear module 26 drives the second gear module 27 to rotate, the rotating second gear module 27 respectively drives the third rack 30 to rotate and the third gear module 31 to rotate, and then the positioning rod 22 is simultaneously driven to move downwards, and the door opening rod 23 moves to the outside of the positioning and unlocking module 41 along the horizontal direction.
As shown in fig. 6, in the unlocking stage, the door opening lever 23 will continue to move in the horizontal direction to the outside of the positioning unlocking module 41 to achieve unlocking of the door. To achieve the movement in the unlocking phase, the positioning unlocking module 41 is provided with a fourth gear module 33 which can push the door opening lever 23 to move further outwards. The fourth gear module 33 is also a fixed gear with a fixed rotation shaft, the fourth gear module 33 is disposed on the third rack 30 of the door opening lever 23, and the fourth gear module 33 is always in contact with the third rack 30 of the door opening lever 23, once the fourth gear module 33 starts to rotate, the first meshing surface on the fourth gear module 33 is meshed with the third rack 30. The face of the running block 28 opposite to the fourth gear module 33 is provided with a first rack 32, and the first rack 32 will continuously descend along with the running block 28 in the positioning stage, when the positioning stage is completed, the running block 28 and the first rack 32 thereon will move to a preset position, and the fourth gear module 33 is arranged at a position where the fourth gear module 33 can be meshed and connected with the first rack 32 located at the preset position, that is, when the first rack 32 of the running block 28 reaches the position where the fourth gear module 33 is meshed, the fourth gear module 33 will be driven to rotate, so that the fourth gear module 33 pushes the door opening rod 23 to perform unlocking movement. The door opening lever 23 protrudes outside the positioning unlocking module 41 again and triggers the door lock module 40, so that the door lock module 40 completes the unlocking action. The vertical distances between the rotation axis of the fourth gear module 33 and the rotation axis of the third gear module 31 and the door opening lever 23 are equal. By the arrangement, the force applied to the door opening rod 23 is uniform, and the door opening rod 23 is ensured to move along the horizontal direction.
As shown in fig. 6, an oblong projection 34 may be provided on the running block 28, the second rack 29 may be provided on the side of the projection 34 opposite to the second gear module 27, and the first rack 32 may be provided on the other side of the projection 34 parallel to the side where the second rack 29 is provided. By providing an operation block 28, the positioning rod 22 is driven by the second gear module 27, and the positioning rod 22 drives the fourth gear module 33, which saves space in the housing 21.
As shown in fig. 6, the bottom end surfaces of the first and second racks 32 and 29 are flush with the bottom end surface of the traveling block 28, which makes the shape of the projection 34 relatively simple. Because the positioning rod 22 needs to be driven by the second rack 29 to extend downward in the positioning stage and the whole unlocking movement process, the length of the second rack 29 should be sufficient to enable the positioning rod 22 to complete all the movements in the positioning stage and the unlocking stage, that is, the length of the second rack 29 is greater than or equal to the total length of the positioning rod 22 extending outward in the positioning stage and the unlocking stage. In order to save the length of the rack, the length of the second rack 29 is equal to the total length of the positioning rod 22 extending outward in the movement of the positioning stage and the movement of the unlocking stage, as shown in fig. 6, L5 is the length of the positioning rod 22 required to extend downward in the positioning stage, and L4 is the length of the positioning rod 22 required to extend downward in the unlocking stage, that is, the length = L4+ L5 of the second rack 29. Since the first rack 32 drives the door opening rod 23 to move in the unlocking stage, and the length of the second rack 32 is sufficient for the door opening rod 23 to complete the movement in the unlocking stage, the length of the first rack 32 is greater than or equal to the length of the outward extension of the door opening rod 23 in the unlocking stage. Preferably, the length of the second rack 29 > the length of the first rack 32.
And as shown in fig. 6, the fourth gear module 33 and the third gear module 31 drive the third rack 30 on the door opening rod 23 to move. Assuming that the horizontal distance between the rotation axis of the fourth gear module 33 and the rotation axis of the third gear module 31 is L1, if L1 is greater than the total length of the outward extension of the door opening lever 23 in the positioning stage and the unlocking stage, the third rack 30 may not be in meshing contact with the fourth gear module 33, and L1 is less than the total length of the outward extension of the door opening lever 23 in the positioning stage and the unlocking stage, assuming that the third rack 30 extends leftward from the position in contact with the third gear module 31.
When the gears are normally engaged, the second rack 29 of the positioning rod 22 and the second gear module 27 start to be engaged at the position of the rotation axis, and the first rack 32 of the positioning rod 22 and the fourth gear module 33 start to be engaged at the position of the rotation axis. Let the vertical distance between the rotation axis of the second gear module 27 and the rotation axis of the fourth gear module 33 be L2, and the length of L2 should be greater than or equal to the length of the positioning rod 22 extending outward in the positioning stage, so as to ensure that the positioning rod 22 completes the movement in the positioning stage. Therefore, in order to save space inside the positioning unlocking module housing, it is preferable that the length of L2 is equal to the length of the positioning rod 22 protruding outward in the positioning stage.
The positioning and unlocking module 41 provided by the embodiment includes the door opening rod 23 and the positioning rod 22, and the positioning rod 22 can be positioned at the locking position of the washing drum by the internal structure of the positioning and unlocking module 41, and the door opening rod 23 is enabled to unlock the machine door. Moreover, by the structure of the positioning and unlocking module 41 of the embodiment, the positioning rod 22 extending into the positioning hole can drive the door opening rod 23 to perform unlocking movement, so that the washing drum and/or the machine door can be unlocked only when being locked at a preset position.
Example 4
The present embodiment provides a washing machine door lock detection module based on the above embodiments, and the washing machine door lock detection module provided in the present embodiment can be used to detect the state of the machine door lock. The door lock can comprise a door lock module 40 mentioned in embodiment 1 and embodiment 2 and a positioning unlocking module 41 mentioned in embodiment 3. The washing machine door lock detection module at least comprises a door opening rod 23 for exciting the unlocking of the door lock and a positioning rod 22 for positioning the door lock and/or the position of the washing barrel; wherein, the door opening rod 23 and the positioning rod 22 can be linked with each other. The washing machine door lock detection module further comprises a detection device for detecting and judging the door lock state of the positioning rod 22. Since the door opening rod 23 and the positioning rod 22 are linked with each other, as described in embodiment 3, after the positioning rod 22 positions the washing drum and/or the machine door, the positioning rod 22 drives the door opening rod 23 to move. Therefore, when the door opening rod 23 does not unlock the door or the door opening rod 23 unlocks the door, the positioning rod 22 correspondingly has different motion states and/or moves to different positions, so that the detection device can detect the positioning rod 22 to determine the motion state of the door lock.
In the actual process of unlocking the door, the door opening rod 23 needs to contact and trigger the door lock module 40 as described in embodiments 1 and 2, and a detection device is not conveniently arranged between the door opening rod 23 and the door lock module 40, which makes it difficult to detect the door opening rod 23. When the door opening lever 23 has the positioning levers 22 interlocked with each other, such as the positioning unlocking module 41 provided in embodiment 3; the door lock may be detected as being unlocked by detecting the movement of the detent lever 22, as described above.
The door opening rod 23 and the positioning rod 22 may need to undergo different motion stages in the process of completing unlocking and positioning, and the different stages respectively correspond to different states of the door lock; therefore, the door lock state can be determined by detecting the motion stage of the positioning rod 22. Such as the positioning and unlocking module 41 described in embodiment 3, the positioning and unlocking module 41 may control the positioning rod 22 and the door opening rod 23 to perform the positioning stage and the unlocking stage. In the positioning stage, the positioning rod 22 penetrates into the positioning hole to realize positioning, and accordingly, the door opening rod 23 extends out of the positioning unlocking device. When the positioning rod 22 and the door opening rod 23 complete the movement of the positioning stage, the door lock is in a locked state, and the washing drum and the door are in a state of being locked at a preset position. When the door opening rod 23 and the positioning rod 22 complete the unlocking stage, the door lock is in the unlocking state, and the washing drum and the machine door are still in the state of being locked at the preset position. Since the position of the positioning lever 22 changes at each time in the positioning stage and the unlocking stage, the detection device detects the position of the positioning lever 22 to determine the movement stage of the positioning lever 22 and thus the state of the door or the door lock. The positioning and unlocking module 41 may be different from the positioning and unlocking module 41 in embodiment 3, and as long as the door opening rod 23 is linked with the positioning rod 22, and the positioning rod 22 has different positions in different motion stages, the state of the door lock and/or the door can be determined according to the position of the positioning rod 22.
In order to better detect the position of the positioning rod 22, preferably, the positioning rod 22 moves along the same linear track in both the positioning stage and the unlocking stage, and the detection device is configured to detect the movement position of the positioning rod 22 along the linear track. The positioning rod 22 moves along a straight track, so that the movement track of the positioning rod 22 is relatively simple, the movement position of the positioning rod 22 can be conveniently tracked, and the position setting of the detection device is convenient. For example, the positioning and unlocking module 41 provided in embodiment 3 can realize that the positioning rod 22 moves along the same linear track in both the positioning stage and the unlocking stage; the detection device only needs to be provided on the linear movement locus of the positioning rod 22.
The detection device may be an image acquisition device or an electrical signal detection device, and in this embodiment, a light sensing detection device is taken as an example for description. As shown in fig. 7, a light shielding plate 37 is provided on the positioning rod 22, and a light sensing device is disposed at the linear motion locus of the positioning rod 22. A photoelectric plate 38 that can emit light is provided in the housing 21 of the positioning/unlocking module 41 at a position facing the linear path of the positioning rod 22. The light shielding plate 37 is fixed on the positioning rod 22, the positioning rod 22 will drive the light shielding plate 37 to move, when the positioning rod 22 moves to different positions, the light shielding plate 37 will shield the light of different positions, and the light sensing detection device detects different light shielding positions, so as to position the position of the positioning rod 22. Specifically, part of the light source and the light-sensitive detecting device of the photoelectric panel 38 are disposed at two sides relative to the light shielding plate 37, so that part of the light emitted by the photoelectric panel 38 and directed to the light-sensitive detecting device is necessarily shielded by the light shielding plate 37.
As shown in fig. 7, the light shielding plate 37 is provided on the operation block 28 fixed to the positioning rod 22. As shown in fig. 7, a guide hole 39 may be further provided on the photoelectric plate 38, and the light shielding plate 37 may be correspondingly inserted into the guide hole 39 and run in a direction defined by the guide hole 39, so that the running of the light shielding plate 37 may be defined; and the light sensing means is disposed along the guide hole 39, which ensures that the light sensing means senses the light being blocked.
Specifically, the light sensing detecting device includes a first light sensing detector and a second light sensing detector, the first light sensing detector is disposed at a desired position where the positioning rod 22 completes the positioning stage movement and the light shielding plate 37 is located, and the second light sensing detector is disposed at a desired position where the positioning rod 22 completes the unlocking stage movement and the light shielding plate 37 is located. The first photo detector and the second photo detector are disposed on the photo-electric plate 38. Thus, when the first light-sensitive detector detects that the light is blocked, the corresponding positioning rod 22 completes the movement of the positioning stage; when the second light-sensitive detector detects that the light is blocked, the corresponding positioning rod 22 completes the movement of the unlocking stage. The first and second photo detectors may be made of a photo-sensitive detector.
Further preferably, the first light-sensitive detector and the second light-sensitive detector may be both provided with a control switch, and the control switches are both connected with a motor 24 for supplying power to the movement of the door-opening rod 23 and the positioning rod 22. Therefore, the first light sensation detector and the second light sensation detector are controlled to work when the motor 24 starts to work, and the effects of reducing energy consumption and prolonging the service life of the light sensation detectors are achieved. And all light sense detection device can send position signal, and washing machine lock detection module still includes the signal receiver who receives position signal. The washing machine door lock detection module can judge the state of the door lock according to the position signal sent by the light sensation detection device.
The present embodiment provides a solution for detecting whether the detent lever 22 is locked in place. The washing barrel is provided with a positioning hole for the positioning rod 22 to penetrate through, the positioning hole is provided with a guide rail groove, and the positioning rod 22 penetrating into the positioning hole is embedded in the guide rail groove to move. The bottom of locating lever 22 fixes the slider, and the guide rail inslot sets up the recess that can inlay the slider in the card, establishes detection device in the recess, and detection device can correspond and detect whether inlay the slider in the recess. After the positioning rod 22 completes all movements of the positioning stage and the unlocking stage, the slider on the positioning rod 22 is embedded in the groove, so that the detection device arranged in the groove can be used for detecting whether the positioning movement of the positioning rod 22 is positioned in place.
The embodiment also provides a locking detection device for detecting whether the machine door is locked in place, wherein the locking detection device comprises a magnet arranged on the machine door, and a Hall sensor is arranged at a corresponding position on the washing drum; the hall sensor detects the position of the magnet. When the machine door is locked in place, the magnet on the machine door reaches the preset position, and the Hall sensor correspondingly detects the magnet, so that the machine door is determined to be locked in place.
Since the washing drum door 42 needs to rotate together with the washing drum, the washing drum door 42 cannot be controlled to close automatically by an electric signal, and the washing drum door 42 may be provided with the door lock device as described in embodiments 1 and 2, so that the washing drum door 42 is locked by the door closing action. There may be a case where the door is not locked in place when the locking washing tub door 42 is manually closed. At the moment, whether the machine door is locked in place can be detected through the magnet and the Hall sensor.
The door lock device described in embodiments 1 and 2 has the door hook 1 and the locking portion 4 as described above, and when the locking portion 4 is unlocked, the rotatable locking portion 4 will exert a force on the door hook 1, and the door fixedly connected to the door hook 1 will not stay at the locked position under the driving action of the door hook 1, and the corresponding magnet is not in the preset position, and the hall sensor cannot detect the magnet.
The lock detection module that this embodiment provided, the accessible detects the position of locating lever 22, the state of accurate judgement lock, and still including the locking detection device that whether the detection machine door is accurate by the locking among the lock detection module. The lock detection module that this embodiment provided can carry out comprehensive detection to quick-witted door locking process, unblock process, location process promptly.
Example 5
The present embodiment provides a washing machine on the basis of the above embodiments. The washing machine includes a positioning unlocking module 41 as described in embodiment 3, and a door lock module 40 as described in embodiment 1 or embodiment 2. As shown in fig. 7, the positioning and unlocking module 41 is disposed at a position opposite to the door lock module 40, and the positioning and unlocking module 41 is in contact with and matched with the door lock module 40 to complete unlocking the door. Specifically, the door opening rod 23 of the positioning unlocking module 41 is opposite to the limiting block 2 extending from the door lock module 40 to the outside of the housing 3, and the door opening rod 23 is excited to drive the limiting block 2 to perform unlocking movement when the door opening rod moves in the unlocking stage automatically, so that the door is unlocked.
It should be noted that the installation position and structure of the door opening lever 23 in the positioning and unlocking module 41 can be adjusted, so that the moving direction of the door opening lever 23 can be adjusted. As shown in the figure, the moving direction of the door opening lever 23 of the present embodiment is consistent with the axial direction of the stopper 2, that is, the door opening lever 23 pushes the stopper 2 along the axial direction of the stopper 2 to activate the stopper 2. The positioning unlocking module 41 can also be adjusted to move the door opening rod 23 along the direction perpendicular to the axial direction of the limiting block 2, namely the door opening rod 23 pushes the limiting block 2 from the side surface of the limiting block 2 to excite the limiting block 2, other structures are kept unchanged, and the machine door can be unlocked in the same way.
As shown in fig. 8, the washing machine has a washing drum, a washing drum door 42 is arranged on the washing drum, and the washing drum door 42 needs to rotate along with the washing drum, so that the washing drum door 42 cannot automatically close the machine door through electric signal control as described above. The door lock module 40 as described in embodiments 1 and 2 can be provided on the washing tub door 42, so that the washing tub door 42 can be locked by the action of closing the washing tub door 42. Accordingly, the positioning unlocking module 41 may be fixed at a position opposite to the door lock module 40 on the tub and/or the washing machine case.
In the washing machine, the position of the outer cylinder on the machine door usually needs to be provided with an outer cylinder front flange, the door lock module 40 is fixed on the washing cylinder door 42, the positioning unlocking module 41 is fixed on the outer cylinder, and the door opening rod 23 must penetrate through the outer cylinder front flange in order to enable the door opening rod 23 to be in contact with the limiting block 2. An unlocking hole through which the door opening lever 23 passes is provided on the outer cylinder front flange, and since water may contact at the outer cylinder front flange, a sealing member is preferably provided at the unlocking hole in order to secure sealability.
The washing machine provided by the embodiment further comprises a door lock detection module of the washing machine as described in embodiment 5, wherein the door lock detection module can detect the locking condition of the door lock module 40 to the machine door, and can also detect the unlocking and positioning conditions of the positioning and unlocking module 41 to the machine door.
Example 6
The present embodiment provides a control method of a washing machine on the basis of the above embodiments, wherein the washing drum door 42 is disposed on the washing drum and rotates together with the washing drum during the washing process; and a door lock module 40 as described in embodiments 1, 2 is provided on the washing tub door 42. The washing drum is correspondingly provided with a washing drum door 42, the outer drum and/or the shell of the washing machine is provided with a washing machine door 43 corresponding to the position of the washing drum door 42, and the washing drum door 42 and the washing machine door 43 can be opened and closed independently. This embodiment is particularly suitable for washing machines containing only a single washing drum inside. The control method of the washing machine provided by the embodiment reasonably sets the operation to be executed by the washing drum door 42 and the washing machine door 43 when the machine door is opened and closed, and ensures the normal operation of opening and closing the double-layer machine door.
When the double-layer machine door of the washing machine needs to be opened and closed, the washing machine is ensured to be in a state of stopping operation and being locked, so that the phenomenon that clothes and liquid flow out when the machine door is opened in the operation process of the washing machine or the machine door enters the operation state when the machine door is closed by the washing machine to cause danger is avoided. Therefore, the control method of the embodiment includes detecting whether the washing machine stops operating before the double-layer door is opened and closed. When the washing machine stops operating, the washing tub should be locked. After the door is opened and closed, the washing machine needs to perform other procedures, such as a washing procedure, and the washing drum should start to perform the following operations from the set locking position, so that whether the washing drum is locked at the preset locking position should be detected. Whether the washing drum is locked or not can be detected by a detection device arranged on the washing drum.
Specifically, when the door of the washing drum needs to be opened, the positioning and unlocking module 40 is controlled to lock the washing drum at the set position, that is, the positioning rod 22 in the positioning and unlocking module 40 is controlled to complete the movement of the positioning stage as described in embodiment 3, and then the operation of opening the door of the washing drum is allowed to be performed.
After the positioning and unlocking module 40 locks the washing drum at the set position, the door lock detection module detects whether the positioning and unlocking module 40 completes locking the washing drum at the set position, specifically, the door lock detection module detects the position of the positioning rod 22 as described in embodiment 4, and determines whether the positioning rod 22 extends into the positioning hole to complete locking the washing drum at the preset position.
After the washing drum is determined to be locked at the set position, the positioning unlocking module 41 is controlled to unlock the door lock module 40, and the door lock detection module detects that the door of the washing drum is allowed to be opened after the positioning unlocking module 41 completes unlocking. Specifically, when the positioning unlocking module 41 unlocks the door lock module 40, the positioning rod 22 in the positioning unlocking module 41 is controlled to complete the movement of the unlocking stage as described in embodiment 3. When the door lock detection module detects whether to unlock, as described in embodiment 4, the door lock detection module determines whether to complete unlocking by detecting the position of the positioning rod 22.
After the washing drum door is opened and clothes are put in, and the washing drum door needs to be closed, the door lock detection module is controlled to detect whether the positioning unlocking module 41 still keeps locking the washing drum at the set position, and after the positioning unlocking module 41 still keeps locking the washing drum at the set position, the washing drum door is allowed to be closed. Similarly, at this time, the door lock detection module is required to detect the specific position of the positioning rod 22, determine whether the positioning rod 22 is inserted into the positioning hole, and further determine whether the washing drum is locked at the preset position.
When the machine door is closed, the door lock module 40 is controlled to lock the washing drum door, and the door lock detection module detects whether the washing drum door is locked, specifically, the door lock module 40 can lock the washing drum door through the action of closing the door as described in embodiments 1 and 2. The door lock detection module can detect whether the washing drum door is locked by using the locking detection device as described in embodiment 4.
After the door of the washing drum is confirmed to be locked, the positioning unlocking module 41 is controlled to release the limitation of locking the washing drum at the set position; specifically, as described in embodiment 3, the motor 24 in the positioning and unlocking module 41 rotates reversely to drive the positioning rod 22 to extend out of the positioning hole, and the locking limitation on the washing drum is released. And then the control door lock detection module detects whether the positioning unlocking module 41 releases the limitation of locking the washing drum at the set position. Specifically, the door lock detection module detects the position of the positioning rod 22, and determines the limitation that the washing drum is locked at the set position by contact when the positioning rod 22 extends out of the positioning hole. After confirming that the limitation of locking the washing drum at the set position is released, the washing machine is allowed to run, so that the washing drum can rotate to realize the operation after.
Washing machines typically have a tub door 42 on the tub, on the inside, and a washing machine door 43 on the outside, tub and/or housing. In the actual process of opening the washing machine door, the washing machine door 43 and the washing drum door 42 are opened in sequence, and the washing drum door 42 can be controlled to be locked when the washing machine door 43 is opened, so that the collision of the inner and outer double-layer doors caused by the movement of the washing drum door 42 in the process of opening the washing machine door 43 is avoided. When the door is actually opened, the washing drum door 42 is controlled to be locked, and after the washing drum door 42 is detected to be successfully locked, the washing machine door 43 is controlled to be unlocked, so that the washing machine door 43 can be opened. The washing drum door 42 is controlled to unlock only when the washing drum door 42 needs to be opened after the washing machine door 43 is opened, and the washing drum door 42 can be opened at the rear. The specific control method comprises the following steps: after detecting that the washing machine door 43 is opened, the washing drum door 42 is controlled to be unlocked.
As can be seen from the above embodiments, since the door lock module 40 and the positioning unlocking module 41 can be disposed on the washing drum door 42, the washing drum door 42 can be locked and unlocked when the washing drum is locked at a preset position; that is, the tub door 42 can be locked during the opening of the washing machine door 43 and unlocked after the opening of the washing machine door 43.
As shown in particular in fig. 10, the operation of opening the door comprises the following steps:
step S1, detecting whether the washing drum is locked and locked at a preset position, executing step S2 if the washing drum is not locked and locked at the preset position, and executing step S3 if the washing drum is locked and locked at the preset position;
s2, controlling the washing drum to be locked and locked at a preset position, and executing the step S3;
s3, controlling the washing drum door 42 to be locked, and executing the step S4 after detecting that the washing drum door 42 is successfully locked;
step S4, controlling the washing machine door 43 to unlock and executing the step S5;
step S5, detecting whether the washing machine door 43 is opened or not, executing step S6 when the washing machine door 43 is not opened, and executing step S7 when the washing machine door 43 is opened;
step S6, opening the washing machine door 43, and executing step S7;
and S7, controlling the washing drum door 42 to be unlocked and opening the washing drum door 42.
Generally, the operation of opening the double door is performed to take out the laundry from the washing machine, and the use of the washing machine is often finished after the laundry is taken out. The washing machine is not required to be used until the laundry is put into the washing machine again and the door is closed. During the period of time when the washing machine is not used, the washing drum is ensured to be locked and locked at the preset locking position, so that when the washing machine needs to operate again, the washing drum can be ensured to operate from the preset locking position, and the normal operation of the washing program of the washing machine is facilitated. Namely, after the operation of opening the double-layer machine door is completed and before the operation of closing the double-layer machine door is performed, the washing drum is kept locked and is locked at a preset locking position.
When the door is closed, the washing drum door 42 and the washing machine door 43 are closed in sequence, the washing drum door 42 should be locked after the washing drum door 42 is closed, and whether the washing drum door 42 is locked at a preset position is detected. As can be seen from the door lock module 40 provided on the washing tub door 42 in the above embodiment, once the washing tub door 42 is properly closed, the washing tub door 42 can be locked by the door lock module 40. And it can also detect whether the washing drum door 42 is closed and locked at the right position by the magnet provided on the washing drum door 42. That is, the above control method can ensure that the washing tub door 42 is correctly closed when the washing tub door 42 is closed by detecting whether the washing tub door 42 is locked at a preset position. The control method provided by the embodiment is reasonable in setting, and the door 42 is locked after being closed, so that the door 42 is not affected when the door 43 of the washing machine is closed. And the washing machine door 43 can be closed only after the washing drum door 42 is confirmed to be locked at the preset locking position, so that the washing machine door 43 is ensured to be closed only after the washing drum door 42 is accurately closed. The procedure of locking the washing machine door 43 after the washing machine door 43 is closed can avoid the situation that the washing machine door is repeatedly closed if the washing drum door 42 is not correctly locked when the washing machine door is closed.
After the inner and outer double-layer machine doors of the washing machine are correctly closed and locked, the washing machine can start to perform other operations such as subsequent washing and the like. The washing machine needs to perform an intended movement of the washing tub during a subsequent operation, so that an operation of unlocking the washing tub is required. And the inner and outer double-layer machine doors should be kept in a locked state after being closed, so that the influence on the normal operation of the washing machine caused by the condition that the washing machine door 43 is opened in the operation process of the washing machine is prevented. As can be seen from the description of the positioning and unlocking module 41 in the above embodiment, the positioning and unlocking module 41 can be used to lock and unlock the washing drum, that is, the washing drum and the washing drum door 42 can be unlocked and locked in the present control method.
As shown in particular in fig. 11, the operation of closing the door comprises the following steps:
step S1, detecting whether the washing drum is locked and locked at a preset position, executing step S2 if the washing drum is not locked and locked at the preset position, and executing step S3 if the washing drum is locked and locked at the preset position;
s2, controlling the washing drum to be locked and locked at a preset position, and executing the step S3;
step S3, closing and locking the washing drum door 42, detecting whether the washing drum door 42 is locked at a preset locking position, if not, executing the step S4, and if so, executing the step S5;
step S4, controlling the washing drum door 42 to be locked at a preset locking position and executing step S5;
step S5, closing and locking the washing machine door 43, detecting whether the washing machine door 43 is successfully locked or not, and executing the step S6 after the washing machine door 43 is successfully locked;
and S6, controlling the washing drum to unlock.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A washing machine, comprising a washing tub having a washing tub,
a washing drum rotatably installed in the washing machine;
a washing barrel door which is arranged on the washing barrel and can correspondingly open and close the barrel opening of the washing barrel;
a door lock module (40) for locking the closed washing drum door;
it is characterized by also comprising the following steps of,
a positioning unlocking module (41) which is provided with a positioning structure for locking the washing drum at a set position;
and the unlocking structure is used for unlocking the door lock module (40) under the trigger of the positioning structure after the washing drum is locked at the set position.
2. The washing machine as claimed in claim 1, characterized in that the positioning and unlocking module (41) comprises a door opening lever (23) and a positioning lever (22), and the door lock module (40) comprises a limiting block (2) for limiting the locked state of the door;
the positioning rod (22) can independently extend into a positioning hole arranged on the washing drum and/or the door of the washing drum,
or the positioning rod (22) drives the door opening rod (22) to contact and trigger the limiting block (2) to move after stretching into the positioning hole.
3. A washing machine as claimed in claim 2, characterized in that the washing tub door (42) has a fixed locking module (40) and the outer tub wall has a correspondingly fixed positioning unlocking module (41).
4. The washing machine as claimed in claim 3, wherein the outer tub is provided with an outer tub front flange at a position opposite to the washing door, the outer tub front flange is provided with an unlocking hole for the door opening rod (23) to pass through, and the door opening rod (23) is in contact fit with the limiting block (2) through the unlocking hole;
and a sealing piece is arranged at the unlocking hole.
5. A washing machine as claimed in claim 4, characterized in that the washing machine comprises a door lock detection module for detecting the locking of the door lock module (40) to the door of the washing tub, for detecting whether the positioning unlocking module (41) locks the washing tub in the set position, and for detecting the unlocking of the door of the washing tub by the positioning unlocking module (41).
6. A control method of a washing machine, characterized by having the washing machine of any one of claims 1 to 5,
when the door of the washing drum needs to be opened, the positioning unlocking module (40) is controlled to lock the washing drum at a set position, and then the operation of opening the door of the washing drum is allowed.
7. The washing machine control method is characterized in that the door lock detection module detects whether the positioning unlocking module (40) completes locking the washing drum at a set position, after the washing drum is determined to be locked at the set position, the positioning unlocking module (41) is controlled to unlock the door lock module (40), and the door lock detection module detects that the positioning unlocking module (41) completes unlocking and then allows the washing drum door to be opened.
8. The control method of the washing machine according to claim 7, characterized in that when the positioning and unlocking module (40) is controlled to lock the washing drum at the set position, the positioning rod (22) of the positioning and unlocking module (40) is controlled to extend into the positioning hole;
the door lock detection module is used for controlling the door lock detection module to detect the position of the positioning rod (22) when detecting whether the positioning unlocking module (40) finishes locking the washing drum at the set position;
when the door lock module (40) is unlocked by the control positioning unlocking module (41), the positioning rod (22) of the door lock module (40) is controlled to drive the door opening rod (22) to contact and trigger the limiting block (2) to move after extending into the positioning hole.
9. A control method of a washing machine according to any one of claims 6-8, characterized in that, when the washing drum door needs to be closed after the washing drum door is opened and clothes are put in, the control door lock detection module detects whether the positioning unlocking module (41) still keeps locking the washing drum at the set position, and after the positioning unlocking module (41) still keeps locking the washing drum at the set position, the operation of closing the washing drum door is allowed;
when the machine door is closed, the door lock module (40) is controlled to lock the washing drum door, the door lock detection module detects whether the washing drum door is locked, and after the washing drum door is confirmed to be locked, the positioning unlocking module (41) is controlled to release the limitation that the washing drum is locked at a set position;
the control door lock detection module detects whether the positioning unlocking module (41) releases the limitation of locking the washing drum at the set position or not, and the washing machine is allowed to run after the limitation of locking the washing drum at the set position is confirmed to be released.
10. The control method of the washing machine according to claim 9, characterized in that, when the door lock detection module is controlled to detect whether the positioning unlocking module (41) still keeps locking the washing drum at the set position, the door lock detection module detects whether the positioning rod (22) is inserted into the positioning hole;
when the control positioning unlocking module (41) releases the limitation of locking the washing drum at the set position, the control positioning unlocking module (41) controls the positioning rod (22) to extend out of the positioning hole;
when the control door lock detection module detects whether the positioning unlocking module (41) releases the limitation of locking the washing drum at the set position, the door lock detection module detects whether the positioning rod (22) extends out of the positioning hole.
CN202110461360.1A 2021-04-27 2021-04-27 Washing machine and control method thereof Active CN115247352B (en)

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Application Number Priority Date Filing Date Title
CN202110461360.1A CN115247352B (en) 2021-04-27 2021-04-27 Washing machine and control method thereof
PCT/CN2022/087618 WO2022228198A1 (en) 2021-04-27 2022-04-19 Washing machine door lock module and washing machine
EP22794669.6A EP4332292A1 (en) 2021-04-27 2022-04-19 Washing machine door lock module and washing machine

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Application Number Priority Date Filing Date Title
CN202110461360.1A CN115247352B (en) 2021-04-27 2021-04-27 Washing machine and control method thereof

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CN110565329A (en) * 2019-09-16 2019-12-13 温州天健电器有限公司 Door lock for electric appliance
CN110820267A (en) * 2019-11-27 2020-02-21 无锡小天鹅电器有限公司 Door body assembly of clothes treatment equipment and clothes treatment equipment
WO2020251509A2 (en) * 2019-06-14 2020-12-17 Arcelik Anonim Sirketi A washer/dryer comprising a lock
CN112281411A (en) * 2019-07-26 2021-01-29 青岛海尔滚筒洗衣机有限公司 Washing machine
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8510707D0 (en) * 1984-04-27 1985-06-05 Hotpoint Ltd Interlock mechanism
CN105442257A (en) * 2015-12-31 2016-03-30 温州天健电器有限公司 Washing machine door lock
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