CN103562478B - The door lock assembly of electric household appliance - Google Patents
The door lock assembly of electric household appliance Download PDFInfo
- Publication number
- CN103562478B CN103562478B CN201280020814.0A CN201280020814A CN103562478B CN 103562478 B CN103562478 B CN 103562478B CN 201280020814 A CN201280020814 A CN 201280020814A CN 103562478 B CN103562478 B CN 103562478B
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- China
- Prior art keywords
- door
- electric
- breech lock
- box body
- safety switch
- 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.)
- Expired - Fee Related
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- 230000009467 reduction Effects 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000012423 maintenance Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000004851 dishwashing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0009—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with thermo-electric actuators, e.g. heated bimetals
-
- 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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/02—Doors specially adapted for stoves or ranges
- F24C15/022—Latches
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
- A47L15/0049—Detection or prevention of malfunction, including accident prevention
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
- A47L2401/26—Loading door status, e.g. door latch opened or closed state
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
- A47L2501/32—Stopping or disabling machine operation, including disconnecting the machine from a network, e.g. from an electrical power supply
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0603—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Push-Button Switches (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Lock And Its Accessories (AREA)
Abstract
A kind of electric household appliance, comprising: shell (2); Compartment (3), this compartment (3) to be contained in shell (2) and in the face of opening (4); Door (5), this door (5) is fitted to shell (2) and removable between an open position and a closed; And locking device (6); This locking device (6) has: box body (7), and this box body (7) is fixed to shell (2) along by door (5); Locking devicen (8,13), this locking devicen (8,13) is fitted to box body (7) to move between the latched position and the off-position of release door (5) of lock door (5); And actuating device (11), this actuating device (11) moves between latched position and off-position for optionally making locking devicen (8,13).This actuating device (11) has: at least conductive resistance silk (16), and this conductive resistance silk (16) is made up of marmem and is designed to change length along with the change of temperature; And electric device (18), this electric device (18) is for powering for resistance wire (16) and producing in check Joule effect variations in temperature.
Description
Technical field
The present invention relates to a kind of door lock assembly of electric household appliance.
More specifically, the present invention relates to so a kind of device, that is: it is designed in the fastening position of the opening in the shell of closing electric household appliance by door or drawer lock, described electric household appliance is such as washing machine, drier, the combination of washing machine drier, dish-washing machine or baking box etc., only below describes exemplarily electric household appliance described in reference.
Background technology
As everyone knows, the electric household appliance of the above-mentioned type, as washing machine, comprising: shell; Laundry room, such as cylinder, it installs in the position of the clothing load/unload opening in shell in the enclosure; And door, it is hinged to shell to rotate opening and closing respectively between the open position of opening and fastening position.
The utensil of the above-mentioned type, such as, washing machine, also comprises: door lock assembly, its be designed to when machine runs by door locked close opening fastening position in, or be designed to when machine is in given rest/idle condition discharge door open door to allow user.
Locking/the releasing device be currently used on electric household appliance generally includes: locking mechanism, and door is being fastened to machine casing according to order by when the door is in the closed position; Have the electric actuating device of removable pin, described electric actuating device allows according to its position or prevents locking mechanism that door is fastened to machine casing; And electronic control unit, it is designed to control electric actuating device and moving pin according to the signal of telecommunication.More specifically, electric actuating device pin axially moves to be fastened to by door between the extended position of shell and the retrieving position preventing locking mechanism door to be fastened to shell forcing locking mechanism.
Electric actuating device generally includes: box body, and it is fixed to instrument outer shell, along leaning on opening, and holds pin; Solenoid, that is, electric coil, it is connected to electric controller by positive temperature coefficient (PTC) protective device; And sliding bar, it is fitted in solenoid, and be connected to pin by connecting rod and/or by the gear with motion transmission cam at its free end, and it moves into and shifts out solenoid to control the movement of selling by the magnetic field produced by solenoid between extended position and retracted position.
Electric actuating device also comprises safety device, and this safety device is designed to, when locking device release door, automatically cut off the electric power---normally making the motor that laundry drum rotates---to some electric/electronic devices.
Some safety devices comprise: bimetallic spring; And positive temperature coefficient (PCT) resistance attenuator, it is positioned to face the bimetallic spring in box body, and when in check electric current is through out-of-date, it extends or shortens bimetallic spring to close or to open the electric power safety switch being connected to motor power line.Bimetallic spring be usually designed to the connecting rod of Vidacare corp or gear mechanism cooperate to prevent door from opening when safety switch is closed.
The major defect of the door lock assembly of the above-mentioned type is the high power consumption of positive temperature coefficient parts, although this reduce its by heating time resistance, but power during still keeping the operation to utensil, thus cause the increase of the total power consumption of locking device can not ignore far away.
Also therefore manufacture except costliness except quite complicated, the locking device of the above-mentioned type also has following shortcoming, that is: discharge quite lentamente, and this depends on the time shared by the cooling of safety device PTC attenuator.
Summary of the invention
Applicant has conducted extensive research to design so a kind of door lock assembly, its
Simpler in electric power and mechanical aspects, thus more cheap and be easier to produce; And
There is no the positive temperature coefficient assembly of electronics, thus reduce operation energy consumption compared with the door locked/releasing device described.
Therefore, the object of this invention is to provide a kind of technical scheme being designed to realize above-mentioned target.
According to the present invention, provide a kind of electric household appliance, it comprises: shell; Compartment, it holds in the enclosure and in the face of being formed in opening in shell; Door, it is fitted to shell and can moves opening and closing respectively between the open position of opening and fastening position; And locking device, its for by the door locked in the closed position to shell, this locking device comprises again: box body, and it is fixed to shell, along by door; Locking devicen, it is fitted to box body at least to move between door locked position and door off-position; And actuating device, it optionally moves between described latched position and described off-position for making described locking devicen; This actuating device comprises: conductive resistance silk, and it is made up of marmem and is designed to change length along with the change of temperature; And electric device, it is for producing the in check Joule effect change of temperature for described line powered.
The present invention preferably also relates to a kind of locking device, and this locking device is used for door locked to be formed in allow the compartment entered in shell in the fastening position of the opening in shell in cut out, and locking device comprises: box body, and it is fixed to shell, along leaning on door; Locking devicen, it is fitted to box body at least to move between door locked position and door off-position; And actuating device, it moves between described latched position and described off-position for optionally making described locking devicen; This actuating device comprises: conductive resistance silk, and it is made up of marmem and is designed to change length along with the change of temperature; And electric device, it is for producing the in check Joule effect change of temperature for described line powered.
The present invention preferably also relates to a kind of locking device, this locking device be used for will the drawer lock that slide in the compartment be mounted in shell in a closed position, locking device comprises: box body, and it is fixed to shell, along by door; Locking devicen, it is fitted to box body at least to move between drawer lock position and drawer off-position; And actuating device, it moves between described latched position and described off-position for optionally making described locking devicen; Described actuating device comprises: conductive resistance silk, and it is made up of marmem and is designed to change length along with the change of temperature; And electric device, it is for producing the in check Joule effect change of temperature for described line powered.
Accompanying drawing explanation
Fig. 1 shows the front schematic view of the electric household appliance of the locking device be characterised in that according to teaching of the present invention;
Fig. 2 shows the stereogram of the locking device of Fig. 1, wherein, for the sake of clarity removes some parts;
Fig. 3 to Fig. 6 shows the schematic diagram of locking device under each mode of operation;
Fig. 7 shows the release component for the manually locking device of release graphics 1;
Fig. 8 shows the modification of the locking component of Fig. 1.
Detailed description of the invention
Be below the detailed description of the present invention with reference to accompanying drawing, can produce to make those skilled in the art and use it.As this area any technician clearly; described embodiment can be made a change; and described General Principle also goes for other embodiments and application, and the protection scope of the present invention as claims limit can not be departed from.In other words, the present invention is not considered to be limited to described and shown embodiment, but should give the most widely protection domain consistent with principle described herein and required for protection and feature.
As a whole, indicate a kind of electric household appliance by the Reference numeral 1 in Fig. 1, it preferably but not necessarily corresponds to washing machine, and it comprises: shell 2; Interior compartment 3, its corresponding with the laundry wheel be arranged in shell 2 and in shell 2 opening 4; And door 5, it is hinged to shell 2, with the preferably but not necessarily vertical axis and rotating of the spaced winding at the open position and fastening position that open and close opening 4 respectively.
About describing above, it should be emphasized that, although description below indicates the electric household appliance corresponding with washing machine especially, the present invention is also applicable to the electric household appliance of other types, the combination of such as drier, washing machine drier, dish-washing machine or baking box; When the electric household appliance of other types, interior compartment 3 is corresponding with the baking chamber be formed in baking box casing, and door is with to be hinged to shell corresponding with the door of the entrance of closing baking chamber.
Utensil 1 also comprises locking device 6, this locking device 6 when utensil 1 is in predetermined mode of operation for door 5 is locked in close opening 4 fastening position in, or locking device 6 moves to or is moved in open position (Fig. 1) for discharging door 5 to allow door 5 when utensil 1 is in predetermined resting state.
See figures.1.and.2, locking device 6 comprises: the preferably but not necessarily box body 7 of parallelepiped-shaped, and it has longitudinal axis A and is fixed to shell 2, along by opening 4; And breech lock 8, its first end 7a being hinged to box body 7 is to rotate perpendicular to the rotation B of axis A with the spaced winding of inoperative position (Fig. 3) at latched position (Fig. 5), off-position (Fig. 4), wherein, in latched position, breech lock 8 engage from the holding section 5a of the tip protrusion of the fixing arm 5b door 5 with lock in the closed position in door; In off-position, breech lock 8 discharges allow holding section 5a to regain from breech lock 8 and door 5 and shell 2 disconnected from the holding section 5a door 5; In inoperative position, breech lock 8 fully discharges from the holding section 5a on the fixing arm door 5.
Locking device 6 also comprises actuator 11, and this actuator 11 to be contained in box body 7 and to be designed to breech lock 8 optionally to move in following position, that is: latched position, and in this latched position, breech lock 8 is locked to the holding section 5a on door 5; Off-position, in this off-position, breech lock 8 is released to open door 5 from holding section 5a; Or inoperative position, in this inoperative position, holding section 5a is fully separated with breech lock 8.
In the embodiment of Fig. 2 to Fig. 6, actuator 11 comprises movable terminal component or bracket 12, this movable terminal component or bracket 12 are mounted to slide on the main inner surface of box body 7 along the axis C of the A that parallels to the axis, and be mechanically connected to breech lock 8, make the axially-movable of bracket 12 that breech lock 8 is optionally rotated in inoperative position, latched position or off-position around axis B.
More specifically, bracket 12 is in primary importance (Fig. 3), removable between the second place (Fig. 4) and the 3rd position (Fig. 5), and wherein, primary importance is arranged in sentence apart from end 7a minimum range and keeps breech lock 8 to be in inoperative position; The second place is arranged in sentence apart from end 7a ultimate range and keeps breech lock 8 to be in off-position; And the 3rd position keep breech lock 8 to be in latched position sentencing apart from the intermediate distance between minimum range and ultimate range of end 7a.
More specifically, bracket 12 moves in the second place along inverse direction D, or moves in primary importance along the forward direction E contrary with inverse direction D.
In the embodiment of Fig. 2 to Fig. 6, actuator 11 also comprises elastic thrust device 14, this elastic thrust device 14 is designed on bracket 12, apply predetermined elastic force along direction E, flexibly to oppose bracket moving and being pushed in primary importance by bracket along inverse direction D.
Actuator 11 also comprises at least one shape memory thrust bearing device 15, at least one shape memory thrust bearing device 15 described comprises again: at least one the conductive resistance silk 16 be made up of marmem (SMA), and this conductive resistance silk 16 parallels to the axis A and extend, have at least first end or Part I that are connected to box body 7 and at least the second end being connected to bracket 12 or Part II and be designed to change length along with the change of temperature with the movable support bracket 12 along inverse direction D; And line powered device 18, the length of its in check Joule effect change for generation of temperature and therefore wire 16.
Shown in figure 2 in preferred embodiment, bracket 12 is mounted to slide in the seat portion (not shown) in the main inner surface being formed in box body 7, and have preferably but not necessarily cylindrical outer surface face portion 12a, part wire 16 is wound around around described cylindrical outer surface face portion 12a.
Bracket 12 is by separating with breech lock 8 perpendicular to the wall of axis A or dividing plate 17, and the external surface of bracket 12---that is, on opposite side of bracket 12---forms the inner support wall of the seat portion 7b holding breech lock 8.More specifically, in off-position, the outer support surface contrary with interior locking surface of breech lock 8 is positioned to be shelved on the external surface of dividing plate 17, namely holds on the supporting walls of the seat portion 7b of breech lock 8.
In the example of Fig. 2 to Fig. 6, breech lock 8 by opposing that breech lock 8 remains in inoperative position towards the known elastic component (not shown) of the rotation of supporting walls in present portion 7b with being designed to elastic force, and breech lock 8 is connected to bracket 12 by following towing pin 13, described towing pin 13 is designed to when bracket 12 moves along inverse direction D, breech lock 8 is rotated towards the supporting walls of dividing plate 17, or be designed to when bracket 12 moves along forward direction E, allow elastic component that breech lock 8 is rotated away from the supporting walls of dividing plate 17.
In the example of Fig. 3 to Fig. 6, towing pin 13 preferably extends coaxially with axis C and comprises: rear section 13a, and it is firmly-fixed to the surface portion 12a being wound with wire 16 of bracket 12; Forward part 13b, its locking surface projection from breech lock 8 and be designed to the slit 5c in the outer surface part of the holding section 5a of the fixing arm 5b be formed in door 5 to engage; And mid portion 13c, it to be fitted in port in port in dividing plate 17 or through hole and breech lock 8 or through hole 20 and can within it freely to slide.
In preferred embodiment shown in Fig. 3 to Fig. 6, the mid portion 13c of towing pin 13 is designed to latch enable 8 and freely moves relative to towing pin 13 and latch enable 8 rotates when bracket 12 is in primary importance between latched position and inoperative position, and is designed to keep breech lock 8 against dividing plate 17 when bracket 12 is in the second place.
The forward part 13b of towing pin 13 is designed to be engaged by the slit 5c in the holding section 5a on door 5 when breech lock 8 is in latched position, to keep the locking surface on the locking surface being shelved on holding section 5a of breech lock 8 and holding section 5a be connected to breech lock 8, and when bracket 12 moves along inverse direction D, be designed so that breech lock 8 is fastening and rotate towards dividing plate 17 around axis B.
In a preferred embodiment, elastic thrust device 14 comprises sheet spring, that is, the U-shaped band of elasticity, conductive material, this sheet spring has: two end 14a, and the edge that described two end 14a are fixed to the sidewall 7c of box body 7 is rigidly parallel to and the various piece extended on the opposite side of axis A; And central section 14b, it is preferably corresponding with the bend in spring, and is fitted to bracket 12 securely to apply elastic thrust along forward direction E on towing pin 13.
In the example of Fig. 2 to Fig. 6, the central section 14b of sheet spring 14 is connected to bracket 12 securely at the 13a place, rear section of towing pin 13, keeps towing pin 13 and axis C rough alignment when moving with convenient bracket 12; And two of spring 14 alar part 14c and 14d are designed to keep when bracket 12 is in primary importance be straight substantially and the C that parallels to the axis, and be designed to when bracket 12 moves in the second place along the contrary direction F perpendicular to axis A, namely towards the sidewall 7C of box body 7, outwards bend to (Fig. 6) in the position bent completely gradually, and when bracket 12 moves in the 3rd position, outwards bend gradually in the position of part flexure (Fig. 5).
The end of an alar part 14d in the alar part of spring 14 is connected to the first electric connector 18a of electric device 18 by the band of conductive material; And the central section 14b of spring 14 is by wire 16 and the second electric connector 18b being electrically connected to electric device 18 by automatic switch 23, when exceeding predetermined max-thresholds along the current flow of wire 16, this automatic switch 23 is automatically opened to prevent Joule effect overheated and is made wire 16 damage/be out of order.
In the preferred embodiment of Fig. 2 to Fig. 6, automatic switch 23 comprises: fixing electric contacts 24, and it is electrically connected to the second electric connector 18b; The swing arm 25 be made up of conductive material, this swing arm 25 has: free end, and it is fitted with the removable electrical contact 26 in the face of fixing electric contacts 24; And contrary end, its pivotable in box body 7 partly swings perpendicular to the axle G of axis A and axis B at the spaced winding of fastening position (Fig. 3) and open position (not shown) to allow arm 25, wherein, in a closed position, removable electrical contact 26 is shelved in fixing electric contacts 24, in the open position, removable electrical contact 26 is separated with fixing electric contacts 24.
Automatic switch 23 also comprises: elastic component 27, and such as, spring, in the closed position with keeping arm 25 between its inwall being plugged on arm 25 and box body 7; And head 28, it is designed to the second end of wire 16 to be connected to arm 25, and it is along with the change of the length of wire 16, moves between the first location and the second location to make arm 25 swing between fastening position and open position along axis C.
When exceeding predetermined maximum threshold along the electric current of wire 16, elastic component 27 is designed so that the head 28 activated by wire 16 makes arm 25 move in open position.
In preferred embodiment in fig. 2, the first end of wire 16 is electrically connected to the central section 14b of spring 14, and the second end is connected to preferably but the middle body of not necessarily arm 25.
In the example of Fig. 2 to Fig. 6, wire 16 be made up of Nitinol and the cylindrical part 12a being wound around head 28 and bracket 12 to form coil.More specifically, wire 16 long enough is with the form winding cradle 12 of multiturn and head 28, and described multiturn keeps tightening between head 28 and bracket 12, and to be limited between bracket 12 and head 28 and to be basically parallel to the five line branches that axis A extends.
In the example of Fig. 2 to Fig. 6, wire 16 has the total length of about 387mm, this total length records at ambient temperature between first end and the second end, the diameter of about 0.2mm, and be designed to when wire 16 stands the predetermined transition temperature of such as about 100 DEG C, its crystal structure and therefore length change.
In different embodiment shown in Figure 8, bracket 12 and head 28 can be connected two comb member 50,51 that maybe can comprise and being arranged in box body 7, to parallel to the axis C and sliding between position described above; Elastic thrust device 14 comprises one or more spring 52 be plugged between comb member 51 and comb member 52; Wire 16 advantageously comprises the curled wire in the gap between the tooth being inserted in comb member 50 and dressing component 51, and wherein, curled ends 53 is shelved on the contrary external surface of comb member 50 and dressing component 51.In the illustrated example, curled ends 53 is equally spaced along wire 16, and when wire is inserted in the gap in comb member 50 and dressing component 51, curled ends 53 keep comb member 50 and dressing component 51 parallel to each other and with given distance separately.
The curled wire 16 in the comb member 50 of bracket 12 and head 28 and dressing component 51 is used to have following very large advantage, that is: make it possible to wire to be assembled to head 28 and bracket 12 fast, at low cost, and guarantee the correct interval of head 28 and bracket 12 by the curled ends being used as locator when apparatus for assembling.
Locking device 6 also comprises safety switch 29, if this safety switch 29 be designed to in the closed position in the locking failure of door 5 or predetermined dangerous situation that only partly locking phase associates occur, then this safety switch 29 cooperates with breech lock 8, holding section 5a and actuator 11 electric power cut off one or more electric/electronic devices of utensil 1 and supplies, and is such as motor that laundry wheel is powered.
The power line that the electric/electronic devices (not shown) that safety switch 29 connects most utensil 1 by the connector 32 of locking device 6 is powered, such as, for the line of the motor of the cylinder of utensil 1, and be designed to when breech lock 8 is in any other position being different from latched position, this safety switch 29 automatically switches to open position with line of cutting off the electricity supply, and be designed to when breech lock 8 is in fully in latched position, this safety switch 29 automatically switches to fastening position, and line of not cutting off the electricity supply.
Shown in figure 2 in preferred embodiment, safety switch 29 comprises: fixing electric contacts 30, and it is connected to box body 7 in permanent position; And removable electrical contact 31, it is fitted to box body 7 to move to fixing electric contacts 30 and to leave fixing electric contacts 30, thus opening/closing safety switch 29.
More specifically, in the example of Fig. 2 to Fig. 6, fixing electric contacts 30 is positioned on the free end of the fixed arm be made up of conductive material, and this fixing electric contacts 30 A that parallels to the axis extends, is positioned to face alar part 14d and along by alar part 14d and be connected to the first electric connector 32 in contrary end.And, removable electrical contact 31 is positioned on the mid portion of the moveable arm be made up of conductive material, this removable electrical contact 31 A that parallels to the axis extends, is positioned between fixed arm and sidewall 7c, and the side relative with alar part 14d is electrically connected to the second electric connector 32.
The moveable arm being fitted with removable electrical contact 31 is designed to removable electrical contact 31 be moved to fixing electric contacts 30 along the direction being substantially perpendicular to axis A and leave fixing electric contacts 30.
Safety switch 29 also comprises: safety pin 34, it is fitted to breech lock 8, and when breech lock 8 rotates, this safety pin 34 axially moves in the directiond along the axis H of the A that parallels to the axis, and and the elastic device between breech lock 8 and dividing plate 17, such as, the spring (not shown) being fitted to safety pin 34 is contrary; And leverage 35, it is plugged between safety pin 34 and removable electrical contact 31, and is designed to when safety pin 34 axially moves, and removable electrical contact 31 is moved between fastening position and open position.
Shown in figure 2 in preferred embodiment, leverage 35 comprises the arm roughly in inverted L-shaped, the short-leg of this arm has the first end 35a be shelved on removable electrical contact 31, and the long leg of this arm has the second end being firmly-fixed to safety pin 34, and bending middle body be shelved in mode be slidably firmly-fixed to box body 7 leader or support section 36 on.
Leader or support section 36 are positioned at dividing plate 17 place, between leverage 35 and bracket 12, and shape is defined as forming the surface tilted relative to axis A, that is: cam, and when leverage is regained in box body 7, the middle body of leverage 35 slides on leader or support section 36.
More specifically, the inclined surface of support section 36 is designed to sliding lever mechanism 35 between minimum retrieving position and maximum retrieving position, wherein, in minimum retrieving position, first end 35a keeps removable electrical contact 31 in the maximum distance apart apart from fixing electric contacts 30, and in maximum retrieving position, connect the long leg of leverage 35 and the bend of short-leg and be positioned adjacent to alar part 14d, and first end 35a keeps the removable electrical contact 31 that is shelved in fixing electric contacts 30.
When the alar part 14d in box body 7 bends along direction F, leverage 35 is also moved to home from the maximum retrieving position near safety switch 29 by alar part 14d, in home, the first end 35a of leverage 35 promotes removable electrical contact 31 along direction F, thus makes removable electrical contact 31 be separated with fixing electric contacts and open safety switch 29.
In preferred embodiment shown in Fig. 2 to Fig. 6, safety pin 34 is positioned to along leaning on towing pin 13 and being equipped with by the hole in the hole in dividing plate 17 and breech lock 8 in an axially slidable way.The rearward end of safety pin 34 is connected to leverage 35, and contrary end has head 34a, and this head 34a is being formed in breech lock 8 and is being designed to the lock slots 8a inner process of the jut of the holding section 5a received on door 5.
More specifically, the lock slots 8a in the jut of the holding section 5a on door 5 and breech lock is complementary in shape, and make as jut coalescing lock groove 8a, this jut axially promotes safety pin 34 along direction D.
In the embodiment of Fig. 7, locking device 6 also comprises mechanical, hand-driven relieving mechanism 40, when the fault of the power failure of the locking device 6 such as caused because wire 16 ruptures and/or actuator 11, manually discharge door 5 by this mechanical, hand-driven relieving mechanism 40.
More specifically, mechanical, hand-driven relieving mechanism 40 comprises: lever 41, and it is connected to breech lock 8 securely, to rotate around axis B and to be rotated to off-position from latched position by breech lock 8; Port 42, it extends through shell 2 and box body 7 perpendicular to axis B, and has first end and the second end towards lever 41, and first end is positioned at observable place and can be close from the outside of utensil 1; And manual releasing instrument 43, it can be inserted in opening 42 and manually to operate on lever 41 applying power to be rotated to open position from fastening position by breech lock 8.
In preferred embodiment shown in Figure 7, manual releasing instrument 43 comprises threaded rod, this threaded rod is manually screwed into the preferred Small Distance nut screw being positioned at opening, to longitudinally move to lever 41 and to leave lever 41, and is therefore rotated to open position from fastening position by breech lock 8.
The operation of locking device 6 to be described under following state now with reference to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, described state is: door 5 be open and breech lock 8 is freely, that is, fully depart from (Fig. 3) with the holding section 5a on the fixing arm on door 5.
In this stage, towing pin 13 is fully regained, so breech lock 8 is pushed in inoperative position by elastic mechanism owing to being applied to the thrust on bracket 12 by elastic thrust device 14.
Under Fig. 3 state, bracket 12 is in primary importance; The alar part 14c of elastic thrust device 14 and alar part 14d is arranged essentially parallel to each other and the A that parallels to the axis; Head 28 remains in primary importance by swing arm 25, thus closes automatic switch 23; Safety pin 34 is fully regained by elastic device, and keep leverage 35 in minimum retrieving position, in this minimum retrieving position, removable electrical contact 31 remains on apart from fixing electric contacts 30 maximum distance apart by first end 35a, thus opens safety switch 29.
With reference to Fig. 4 and Fig. 5, when door 5 is pushed in fastening position, the locking surface of holding section 5a slides on the locking surface of breech lock 8, first breech lock 8 is rotated to off-position (Fig. 4) towards dividing plate 17 from inoperative position, and then rotate with the holding section 5a in fully engages door 5 in the opposite direction, wherein, the jut (not shown) of holding section 5a is fully sat in the groove 8a that puts in breech lock 8 (Fig. 5).
With reference to Fig. 4, during first of breech lock 8 rotates, the safety pin 34 partly promoted by holding section 5a is axially regained, and along support section 36 sliding lever mechanism 35 in the directiond.Simultaneously, towing pin 13 moves to the second place contrary with the elastic force applied by alar part 14c and alar part 14d from primary importance, alar part 14c and alar part 14d little by little outwards bends in the position bent completely, wherein, one of alar part 14c and alar part 14d tackle leverage along direction F and are moved to by lever construction in the home keeping safety switch 29 in an open position.
With reference to Fig. 5, during lock slots 8a in the jut engages receptacle 8 of holding section 5a, door 5 is completely switched off.In this stage, breech lock 8 remains on the 5a of holding section by thrust component; Elastic thrust device 14 axially promotes bracket 12 along direction E and enters the 3rd position to be inserted in the slit 5c of holding section 5a by the forward part of safety pin 34; Alar part 14c and alar part 14d moves to the position of part flexure from the position bent completely; And safety pin 34 is axially pushed in maximum retrieving position along the support section 36 of box body by the jut of holding section 5a, in this maximum retrieving position, movable contact 31 is placed in and contacts with closed safe switch 29 with fixed contact 30 and be therefore motor power supplying by the first end 35a of leverage 35.
With reference to Fig. 6, when the electric current that the electronic-controlled installation (not shown) controlling electric device 18 is predetermined for electric connector supplies, door 5 can move to open position from fastening position, and this Joule effect change producing the controlled temperature of wire 16 is to shorten wire.Because wire shortens, bracket 12 moves to the second place from the 3rd position, and along direction D, towing pin 13 axially regains that breech lock 8 is moved to off-position (Fig. 6) from latched position.Because bracket 12 is regained, alar part 14c and alar part 14d outwards bends in the position bent completely, and wherein, one of alar part 14c and alar part 14d (being alar part 14d in figure 6) promote leverage 35 along direction F and enter into the home opening safety switch 29.
Now, towing pin 13 to be remained in retrieving position by bracket 12 and therefore fully departs from the slit 5c in the 5a of holding section, and therefore this can by regaining from breech lock 8 away from applied thrust on the door 5 of shell 2.
Therefore, door 5 can be fitted with and be designed to promote door away from the elastic sealing element of shell 2, or elastic device can be plugged between shell 2 and door 5 with when locking device 6 is released, and is automatically moved in open position by door 5.
Once door 5 is opened, then elastic controller (not shown) can cut off the electric current supply of connector 18a, 18b to cool wire 16 gradually.Along with wire 16 cools, wire 16 increases in length, and simultaneously, bracket 12 is returned to primary importance by elastic thrust device 14, thus, extracts towing pin 13, and allows elastic component that breech lock 8 is returned to inoperative position (Fig. 3).
In off-position (Fig. 4), breech lock 8 is secured to bracket 12 by towing pin 13, and shelves any further withdrawal that prevents bracket 12 along direction D against dividing plate 17.Therefore, the further reduction of the length of wire 16 is produced by any increase on predetermined threshold of the electric current of wire 16, this is along direction E, with the power applied on swing arm 25 by elastic component 27 moving-head 28 on the contrary, so swing arm 25 rotates in the open position opening automatic switch 23.
About description above, it should be pointed out that in various embodiments, locking device 6, except having except advantage at electric household appliance described above, can also have advantage in other technology application.Such as, locking device 6 can be used for drawer or door locked being formed in furniture or vehicle in closedown, in the fastening position of the compartment in such as motor vehicle, aircraft, train, steamer or similar item.
Described locking device to have on electrically and the mechanically simpler and advantage of therefore producing more fast and more at an easy rate.
In addition, except being easy to produce, the safety switch of locking device is designed to, when door is fully closed, be only such as motor, thus makes utensil safer.
Owing to not having the feature of electronics, positive temperature coefficient assembly, thus locking device is also efficient in energy-conservation.
Obviously, when not departing from the protection scope of the present invention as limited in the following claims, can such as described herein and shown locking device be made a change.
Claims (14)
1. an electric household appliance, comprising: shell (2); Compartment (3), described compartment (3) to be contained in described shell (2) and in the face of being formed in the opening (4) in described shell (2); Door (5), described door (5) is fitted to described shell (2) and can moves between the open position opening and closing described opening (4) respectively and fastening position; And locking device (6), described locking device (6) is for being locked to described shell (2) by the described door (5) being in described fastening position;
The feature of described locking device (6) is, comprising:
-box body (7), described box body (7) is fixed to described shell (2), along leaning on described door (5);
-locking devicen (8,13), described locking devicen (8,13) is fitted to described box body (7), at least to move between the latched position and the off-position of the described door of release (5) of the described door of locking (5); And
-actuating device (11), described actuating device (11) optionally moves between described latched position and described off-position for making described locking devicen (8,13);
Described actuating device (11) comprising:
-shape memory thrust bearing device (15), described shape memory thrust bearing device (15) comprises at least one conductive resistance silk (16), and described conductive resistance silk (16) is made up of marmem and is designed to change length along with the change of temperature; And
-electric device (18), described electric device (18) is for producing the in check Joule effect change of temperature for described resistance wire (16) power supply;
Wherein, described electric household appliance also comprises: automatic switch (23), described automatic switch (23) electricity is plugged between described electric device (18) and described resistance wire (16), and described automatic switch (23) switches between the fastening position and open position of described automatic switch (23) based on the electric current by described resistance wire (16); Described automatic switch cooperates with described resistance wire (16) so that by making the length of described resistance wire (16) be decreased to be less than the minimum length threshold that is associated with predetermined maximum current threshold value and switching to the described open position of described automatic switch (23).
2. electric household appliance according to claim 1, wherein, described locking device (6) comprises safety switch (29), the power circuit that described safety switch (29) is powered to the electric/electronic devices on described utensil (1) for opening/closing and with described actuating device (11) and/or described locking devicen (8,13) cooperate, make it possible to by described locking devicen (8,13) and/or be arranged in described box body (7) described actuating device (11) predetermined motion and switch to and open or close described power circuit.
3. electric household appliance according to claim 2, wherein, described locking devicen (8,13) comprising:
-breech lock (8), described breech lock (8) is hinged to described box body (7) and rotates with the spaced winding first axle (B) of the described off-position of the described door of release (5) with the described latched position at least in the described door of locking (5), wherein, in described latched position, described breech lock (8) engages holding section (5a) on described door (5) to remain in described fastening position by described door (5), in described off-position, described breech lock (8) departs to allow described door to move in described open position with the described holding section (5a) on described door (5), and
-towing pin (13), described towing pin (13) axially can move at inverse direction (D) or the upper edge of the forward direction (E) contrary with described inverse direction (D) the second axis (C) vertical with described first axle (B), and described towing pin (13) is connected to described breech lock (8), the axially-movable along described inverse direction of described towing pin (13) is made to make described breech lock (8) rotate to described off-position; Described towing pin (13) is connected to described resistance wire (16), makes the reduction of the length of described resistance wire cause described towing pin (13) axially to move along described inverse direction (D).
4. electric household appliance according to claim 3, wherein, described actuating device (11) also comprises:
-bracket (12), described bracket (12) is fitted in described box body (7) axially to move along described second axis (C), and described bracket (12) is connected to described towing pin (13) and described shape memory thrust bearing device (15), the reduction of the length of described resistance wire (16) is made to cause described towing pin (13) axially to move along described inverse direction (D); And
-elastic thrust device (14), described elastic thrust device (14) is connected to described bracket (12) to make bracket (12) mobile along described forward direction (E) when the length of described resistance wire (16) increases.
5. electric household appliance according to claim 4, wherein, described elastic thrust device (14) comprises U-shaped spring, and described U-shaped spring has: two ends (14a) being fixed to described box body (7) rigidly; And central section (14b), described central section (14b) is fitted to described bracket (12) securely, to apply elastic thrust along described forward direction (E) on described bracket.
6. electric household appliance according to claim 5, wherein, described elastic thrust device (14) comprises two flexible alar part (14c, 14d), described two flexible alar part (14c, 14d) be designed to: when described bracket (12) is arranged in the primary importance be associated with the inoperative position of described breech lock (8), maintenance is straight substantially and is parallel to described second axis (C); When described bracket (12) is reversed to the second place be associated with the described off-position of described breech lock (8), along perpendicular to described second axis (C) and the contrary direction (F) being parallel to described first axle (B) gradually outwards flexure in the position bent completely; When described bracket (12) moves to the 3rd position between described primary importance and the described second place from the described second place, bend in the position of part flexure.
7. electric household appliance according to claim 6, wherein, be connected in series between the first electric connector (18a) in described electric device (18) of an alar part (14d) in described alar part, at least one resistance wire (16) and described automatic switch (23) and the second electric connector (18b).
8. electric household appliance according to claim 7, wherein, described automatic switch (23) comprising: fixing electric contacts (24); Arm (25), described arm (25) has removable electrical contact (26) and is connected to described box body (7) to swing described removable electrical contact (26) being connected between the fastening position of described fixing electric contacts (24) and the open position making described removable electrical contact (26) and described fixing electric contacts (24) disconnect; Head (28), one end of described at least one resistance wire (16) is connected to described arm (25) by described head (28), and described head (28) can be mobile along described second axis (C); And elastic device (27), allow described arm (25) to be moved in the described open position of described automatic switch (23) by the described head (28) activated by described resistance wire (16) when described elastic device (27) cooperates and exceedes described predetermined maximum current threshold value with described arm (25) with the electric current in described resistance wire (16).
9. electric household appliance according to claim 8, wherein, described safety switch (29) comprising: fixing electric contacts (30), removable electrical contact (31), the described removable electrical contact (31) of described safety switch (29) can move between the fastening position of described fixing electric contacts (30) being connected to described safety switch (29) and the open position disconnected from the described fixing electric contacts (30) of described safety switch (29), safety pin (34), described safety pin (34) is mechanically connected to described breech lock (8) and axially can moves along the 3rd axis (H) being parallel to described second axis (C), leverage (35), described leverage (35) is plugged between the described removable electrical contact (31) of described safety pin (34) and described safety switch (29), and be designed to: when described breech lock (8) move in described inoperative position or described off-position, described safety pin (34) is axially moved time, described leverage (35) makes the described removable electrical contact (31) of described safety switch (29) move to the described open position disconnected from the described fixing electric contacts (30) of described safety switch (29) from the described fastening position of the described fixing electric contacts (30) being connected to described safety switch (29).
10. electric household appliance according to claim 9, wherein, described leverage (35) comprising: first end (35a), and described first end (35a) is shelved on the described removable electrical contact (31) of described safety switch (29); The second end, described the second end is firmly-fixed to described safety pin (34); And bending middle body, described bending middle body is slidably shelved on support section (36), described support section (36) is firmly-fixed to described box body (7) and shape is defined as forming the inclined surface relative to the longitudinal axis (A) of described box body (7), and when described safety pin (34) axially moves, the middle body of described leverage (35) is in the upper slip of described support section (36).
11. electric household appliances according to claim 10, wherein, described leverage (35) slides on described support section (36) between minimum retrieving position and maximum retrieving position, wherein, in described minimum retrieving position, the described removable electrical contact (31) of described safety switch (29) is remained on described fixing electric contacts (30) maximum distance apart apart from described safety switch (29) by described first end (35a), in described maximum retrieving position, the described bending middle body of described leverage (35) is positioned adjacent to an alar part (14d), and the described removable electrical contact (31) of described safety switch (29) keeps being shelved in the described fixing electric contacts (30) of described safety switch (29) by the described first end (35a) of described leverage (35).
12. electric household appliances according to claim 11, wherein, described leverage (35) moves to home by an alar part (14d) in flexure to the described position bent completely in described box body (7) from the described maximum retrieving position be associated with the described safety switch of closedown (29), in described home, the described removable electrical contact (31) of described safety switch (29) is separated to open described safety switch (29) with the described fixing electric contacts (30) of described safety switch (29) by the described first end (35a) of described leverage (35).
13. electric household appliances according to claim 12, wherein, described safety pin (34) is connected to described leverage (35) at the rearward end place of described safety pin (34), and described safety pin (34) has the head (34a) charged in lock slots (8a) in contrary end, described lock slots (8a) to be formed in described breech lock (8) and to be designed to the jut of the described holding section (5a) of receiving on described door (5); When the described jut of described holding section engages described lock slots (8a), described safety pin (34) is pushed axially by the described jut of the described holding section (5a) on described door (5).
14. electric household appliances according to any one in claim 3 to 13, also comprise mechanical, hand-driven relieving mechanism (40), described mechanical, hand-driven relieving mechanism (40) comprises again: lever (41), and described lever (41) is connected to described breech lock (8) securely and rotates to make described breech lock (8) rotate between described latched position and described off-position around described first axle (B); And the manual releasing instrument (43) of user operation, rotate described lever (41) to be rotated to described off-position from described latched position by described breech lock (8) by the manual releasing instrument (43) of described user operation.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11164054.6 | 2011-04-28 | ||
EP11164054.6A EP2518243B1 (en) | 2011-04-28 | 2011-04-28 | Electric household appliance comprising a door locking device |
PCT/EP2012/057724 WO2012146697A1 (en) | 2011-04-28 | 2012-04-27 | Electric household appliance door locking device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103562478A CN103562478A (en) | 2014-02-05 |
CN103562478B true CN103562478B (en) | 2016-03-02 |
Family
ID=46017870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280020814.0A Expired - Fee Related CN103562478B (en) | 2011-04-28 | 2012-04-27 | The door lock assembly of electric household appliance |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2518243B1 (en) |
CN (1) | CN103562478B (en) |
AU (1) | AU2012247522A1 (en) |
RU (1) | RU2013152773A (en) |
WO (1) | WO2012146697A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3126561B1 (en) * | 2014-03-31 | 2019-02-20 | Electrolux Appliances Aktiebolag | Locking device for a door of a domestic appliance |
CN103982090B (en) * | 2014-04-24 | 2016-03-02 | 宁波方太厨具有限公司 | A kind of door latch structure for household electrical appliance |
CN104033069B (en) * | 2014-05-29 | 2017-01-25 | 建盈(广州番禺)塑料五金实业有限公司 | Safety box with nitinol wire locking mechanism |
CN104110173B (en) * | 2014-06-23 | 2016-10-05 | 林杨 | A kind of high reliability passive electronic lockset of extendable functions |
CN107429466B (en) * | 2015-04-16 | 2019-07-26 | 松下知识产权经营株式会社 | Washing machine |
CN107386812A (en) * | 2017-07-06 | 2017-11-24 | 上海动联信息技术股份有限公司 | A kind of control method of controlled in wireless lockset |
WO2019102403A1 (en) * | 2017-11-23 | 2019-05-31 | Elettrotecnica Rold S.R.L. | Device for closing and opening panels, in particular panels of electrical household appliances such as washing machines and the like |
US10834789B2 (en) * | 2017-12-19 | 2020-11-10 | Whirlpool Corporation | Electronic door opening system |
CN111576005B (en) * | 2019-02-15 | 2022-07-19 | 青岛海尔洗衣机有限公司 | Wall-mounted washing machine |
CN110106668B (en) * | 2019-06-11 | 2021-06-15 | 温州天健电器有限公司 | Electric door lock on-off control device, door lock and washing machine |
DE102019128367B4 (en) | 2019-10-21 | 2021-06-10 | Marcel P. HOFSAESS | TEMPERATURE DEPENDENT SWITCH |
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WO2006095241A1 (en) * | 2005-03-08 | 2006-09-14 | Itw Metalflex, Druzba Za Proizvodnjo Delov Za Gospodinjske Aparate, D.O.O. | Blocking device for the door of an electric household appliance, in particular the door of a washing machine |
-
2011
- 2011-04-28 EP EP11164054.6A patent/EP2518243B1/en active Active
-
2012
- 2012-04-27 AU AU2012247522A patent/AU2012247522A1/en not_active Abandoned
- 2012-04-27 CN CN201280020814.0A patent/CN103562478B/en not_active Expired - Fee Related
- 2012-04-27 RU RU2013152773/12A patent/RU2013152773A/en not_active Application Discontinuation
- 2012-04-27 WO PCT/EP2012/057724 patent/WO2012146697A1/en active Application Filing
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CN2350415Y (en) * | 1998-06-03 | 1999-11-24 | 乐清市伟滨电子实业公司 | Door trip for domestic drum washer |
CN1301894A (en) * | 1999-12-29 | 2001-07-04 | Lg电子株式会社 | Door lock open and close device for rolling drum washing machine |
EP1340870A1 (en) * | 2002-02-27 | 2003-09-03 | Elektromanufaktur Zangenstein Hanauer GmbH & Co. KGaA | Unit with shape memory metal actuator for doorlocks of domestic appliances |
CN1721614A (en) * | 2004-07-13 | 2006-01-18 | C.R.F.阿西安尼顾问公司 | Household appliance, namely a machine for washing and/or drying laundry, with a door block/release device that can be actuated electrically |
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Also Published As
Publication number | Publication date |
---|---|
RU2013152773A (en) | 2015-06-10 |
EP2518243A1 (en) | 2012-10-31 |
WO2012146697A1 (en) | 2012-11-01 |
CN103562478A (en) | 2014-02-05 |
AU2012247522A1 (en) | 2013-05-02 |
EP2518243B1 (en) | 2019-06-12 |
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