Door for washing machine automatic open/closing device and washing machine
Technical field
This practicality relates to washing machine technology field, particularly a kind of door for washing machine automatic open/closing device and washing machine.
Background technology
Usual door for washing machine is generally manual folding, and automaticity is lower, makes troubles to user.Current those skilled in the art have started the washing machine developing automatic open close cover.
Patent document CN1062321C, disclose a kind of washing machine with automatic pass/hood-opening device, this closes automatically/and hood-opening device comprises the motor at the rear portion of the upper cover being contained in washing machine, rotated by this motor and have two protruding cam members and be contained in the rear portion of folding lid and have three projections, being used for utilizing a driven member of cam member opening/closing lid.Patent document CN204138956U, disclose a kind of washing machine automatic open close cover, comprise the upper cover for covering washing machine opening, driven shaft, linking arm, driving shaft, control panel seat, support and driving mechanism, during work, reducing motor drives the driving shaft rotating band arm that is dynamically connected to rotate, thus drive upper cover one end to move at guide rail sliding (rolling), the oscilaltion of the upper cover other end.But these washing machine automatic open close cover mechanism part are all more, complex structure, and cost is higher, and door for washing machine can only be driven by motor, open and/or closing course can not with manual engagement; In addition, door for washing machine lacks protection to operator, if such as closed time hand folding can not autostop or reversion in time; In addition, guide rail easily weares and teares, and reduces the service life that washing machine is uncapped.Further, existing automatic pass/hood-opening device does not all have overload protection, once transship by foreign object stop, maloperation etc., this closes automatically/and hood-opening device can lose efficacy and even damage.
Summary of the invention
This practical purpose is to overcome above-mentioned defect of the prior art, provides a kind of door for washing machine automatic open/closing device and use said method or the washing machine being provided with said apparatus.
To achieve these goals, on the one hand, this practicality provides a kind of door for washing machine automatic open/closing device, wherein, this device comprises driving mechanism assembly, door closure assembly and workbench, described driving mechanism assembly and described door closure assembly are arranged on described workbench, described driving mechanism assembly comprises drive motors, electromagnetic clutch assembly and driving shaft, described driving shaft and described door closure assembly are fastenedly connected, and described electromagnetic clutch assembly can make the transmission carrying out moment between drive motors and driving shaft in energising situation; Described electromagnetic clutch assembly sets moment of torsion according to actual needs, and under power-off or load torque exceed setting torque condition, electromagnetic clutch assembly makes the transmission can not carrying out moment between drive motors and driving shaft.
In this practicality, the peak torque needed for can opening according to door for washing machine is multiplied by certain safety coefficient, determines the parameter of electromagnetic clutch assembly.Such as peak torque can be 10-20Nm, and safety coefficient can be set to 1.2-1.5.When load torque exceedes setting moment of torsion, the transmission of moment can not be carried out between drive motors and driving shaft, thus play the effect of overload protection.
The door for washing machine automatic open/closing device that this practicality provides is specially adapted to the washing machine of all-in-one-piece tilt-up door lid, and the type of described washing machine is not particularly limited, and can be drum-type or impeller-type.
The door for washing machine automatic open/closing device that this practicality provides, under preferable case, described driving mechanism assembly also comprises, and described drive motors, electromagnetic clutch assembly, decelerator, driving shaft connect successively.
In this practicality, as long as described electromagnetic clutch assembly realizes above-mentioned effect can reach this practical purpose, under preferable case, described electromagnetic clutch assembly comprises the first gear, the second gear, the 3rd gear, clutch axle sleeve and solenoid; Solenoid is fixed on the housing of decelerator, and clutch axle sleeve, the first gear concentric locking collar are connected on solenoid and also can relatively rotate; Described first gear is meshed with the output gear of drive motors, and described second gear is meshed with described 3rd gear, and described 3rd gear is meshed with the input gear of decelerator; Described solenoid is in energising situation, and described first gear and the second gear adhesive are integrated, and can transmit power; Described solenoid is under powering-off state, and described first gear is separated with the second gear, can mutually freely rotate, and drive motors drives the first gear idle running, can not transmit power.
Preferably, the first gear comprises the first gear wheel portion and flat axle portion; Clutch axle sleeve comprises flat hole portion, round hole part and clutch planar ends; Second gear comprises the second gear wheel portion, gear plane end and circular shaft part.
Preferably, the flat axle portion of the first gear is socketed in the flat hole portion of clutch axle sleeve, and can drive clutch axle sleeve synchronous rotary; The circular shaft part of the second gear is socketed in the round hole part of clutch axle sleeve, keeps coaxial and can relatively rotate with clutch axle sleeve and the first gear; When the solenoid is activated, the clutch planar ends of clutch axle sleeve and the gear plane end of the second gear are became one by adhesive.
In this practicality, by frictional force transmitting torque between gear plane end and clutch planar ends, the transmission of moment of torsion therefore can be adjusted by the intensity controlling electromagnetism.Such as; the moment of torsion that electromagnetic clutch assembly can transmit can set according to the speed reducing ratio of actual loading and/or decelerator; when load torque exceedes setting moment of torsion; the suction-combining force of solenoid can not ensure moment of torsion transmission; skid between gear plane end and clutch planar ends, thus play the effect of overload protection.
In this practicality, when the center of gravity of described door closure assembly relative to described driving shaft in the vertical direction closer to washing machine rear end time, also namely when described door closure assembly opens to even larger along opening direction open position perpendicular to horizontal plane, in order to make up the power of driving mechanism assembly, described door for washing machine automatic open/closing device can also comprise at least one assist device.
Described assist device is not particularly limited.Described assist device can promote/pull door closure and move to the direction of door closure.Such as, described assist device can be back-moving spring.Under preferable case, one end of described back-moving spring is arranged on door closure assembly, and the other end is fixed on described workbench by the fixing hole be arranged on described workbench.Such as, the quantity of described back-moving spring can be one.
In this practicality, described workbench can be provided with the sense switch detecting described door closure component states.Such as enabling sense switch and to close the door sense switch, described when the unlatching of door closure assembly or corresponding sense switch can be triggered when being closed to desired location, make described driving mechanism make action such as out of service.Installation site for described sense switch is not particularly limited.
In this practicality, described sense switch can be microswitch, soft-touch control, optoelectronic switch or magnetron.
In this practicality, the door for washing machine automatic open/closing device that this practicality provides can arrange door closure assembly and open switch and door closure assembly closing switch to control the direction of rotation of the drive motors of described driving mechanism assembly to complete the opening and closing of door closure assembly.Switch opened by described door closure assembly and described door closure assembly closing switch can the conventional switchtype used in this area.
Switch opened by above-mentioned driving mechanism, sense switch, door closure assembly and door closure assembly closing switch can be controlled by program controller.Described program controller can be the program controller that this area routine uses.
On the other hand, this practicality also provides a kind of washing machine, and this washing machine arranges above-mentioned door for washing machine automatic open/closing device.
Compared with prior art, the advantage of this practicality and beneficial effect: 1, this practical door for washing machine automatic open/closing device drive disk assembly is less, and structure is simple; Can be driven by motor when 2, opening, also can carry out manually simultaneously; Driven by back-moving spring and door closure self gravitation when 3, closing, strength is comparatively light, can shut down in time or oppositely unclamp, can not cause damage, also can carry out manually closing the door fast simultaneously when hand folding or foreign matter; 4, each component wear is less, long service life; 5, there is multiple overload protective function.
The further feature of this practicality and advantage are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to this practicality, and forms a part for description, is used from and explains this practicality, but do not form the restriction to this practicality with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the overall structure schematic diagram of the door for washing machine automatic open/closing device of a kind of detailed description of the invention of this practicality;
Fig. 2 is the discrete type structural representation of the door for washing machine automatic open/closing device of a kind of detailed description of the invention of this practicality;
Fig. 3 is the structural representation of the electromagnetic clutch assembly of the door for washing machine automatic open/closing device of a kind of detailed description of the invention of this practicality;
Fig. 4 is the part-structure schematic diagram of the electromagnetic clutch assembly of the door for washing machine automatic open/closing device of a kind of detailed description of the invention of this practicality;
Fig. 5 is the structural representation of the first gear of the electromagnetic clutch assembly of this practicality;
Fig. 6 is the left view of the first gear of the electromagnetic clutch assembly of this practicality;
Fig. 7 is the structural representation of the clutch axle sleeve of the electromagnetic clutch assembly of this practicality;
Fig. 8 is the left view of the clutch axle sleeve of the electromagnetic clutch assembly of this practicality;
Fig. 9 is the structural representation of the second gear of the electromagnetic clutch assembly of this practicality;
Figure 10 is the left view of the second gear of the electromagnetic clutch assembly of this practicality;
Figure 11 is the back-moving spring mounting structure schematic diagram of this practicality;
Figure 12 is the back-moving spring mounting structure partial schematic diagram of Figure 11;
Description of reference numerals
1 driving mechanism assembly; 11 drive motors;
12 decelerators; 13 electromagnetic clutch assemblies;
14 driving shafts; 131 first gears;
132 second gears; 133 the 3rd gears;
134 clutch axle sleeves; 135 solenoids;
131a first gear wheel portion; The flat axle portion of 131b;
132a second gear wheel portion; 132b gear plane end;
132c circular shaft part; 134a flat hole portion;
134b round hole part; 134c clutch planar ends;
2 door closure assemblies; 21 door closure pin-and-holes;
3 back-moving springs; 4 workbench;
41 enabling sense switches; 42 close the door sense switch;
43 fixing holes.
Detailed description of the invention
Below the detailed description of the invention of this practicality is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of this practicality, is not limited to this practicality.
As shown in Figure 1 and Figure 2, this practicality provides a kind of door for washing machine automatic open/closing device, this device comprises driving mechanism assembly 1, door closure assembly 2 and workbench 4, described driving mechanism assembly 1 and described door closure assembly 2 are arranged on described workbench 4, described driving mechanism assembly 1 comprises drive motors 11, electromagnetic clutch assembly 13 and driving shaft 14, also comprise decelerator 12 in described driving mechanism assembly 1, described drive motors 11, electromagnetic clutch assembly 13, decelerator 12, driving shaft 14 connect successively.Described door closure assembly 2 is provided with pin shaft hole 21, and described driving shaft 14 to be arranged in described pin shaft hole 21 and to be fastenedly connected.
As shown in Figure 3,4, described electromagnetic clutch assembly 13 comprises the first gear 131, second gear 132, the 3rd gear 133, clutch axle sleeve 134 and solenoid 135.Solenoid 135 is fixed on the housing of decelerator 12, and clutch axle sleeve 134, first gear 131 concentric locking collar is connected on solenoid 135 and also can relatively rotates.Described first gear 131 is meshed with the output gear of drive motors 11, and described second gear 132 is meshed with described 3rd gear 133, and described 3rd gear 133 is meshed with the input gear of decelerator 12.
As shown in Figure 5,6, the first gear 131 comprises the first gear wheel portion 131a and flat axle portion 131b.
As shown in Figure 7,8, clutch axle sleeve 134 comprises flat hole portion 134a, round hole part 134b and clutch planar ends 134c.
As shown in Fig. 9,10, the second gear 132 comprises the second gear wheel portion 132a, gear plane end 132b and circular shaft part 132c.
Described solenoid 135 in energising situation, electromagnetic clutch assembly 13 middle gear planar ends 132b and clutch planar ends 134c adhesive integral, thus, between described first gear 131 and the second gear 132, can power be transmitted; Described solenoid 135 is under powering-off state, and electromagnetic clutch assembly 13 middle gear planar ends 132b and clutch planar ends 134c departs from, and thus, can not transmit power between described first gear 131 and the second gear 132.
The flat axle portion 131b of the first gear 131 is socketed in the flat hole portion 134a of clutch axle sleeve 134, and can drive clutch axle sleeve 134 synchronous rotary.The circular shaft part 132c of the second gear 132 is socketed in the round hole part 134b of clutch axle sleeve 134, keeps coaxial and can relatively rotate with clutch axle sleeve 134 and the first gear 131.When solenoid 135 is energized, the clutch planar ends 134c of clutch the axle sleeve 134 and gear plane end 132b of the second gear 132 is became one by adhesive, thus also becames one with the first gear 131.
Described workbench 4 is provided with the enabling sense switch 41 and sense switch 42 of closing the door that detect described door closure assembly 2 state.Described enabling sense switch 41 and sense switch 42 of closing the door are microswitch, soft-touch control, optoelectronic switch or magnetron.
Described electromagnetic clutch assembly 13 sets moment of torsion according to actual needs, under understanding and considerate condition when load torque exceedes setting moment of torsion, skid between electromagnetic clutch assembly 13 middle gear planar ends 132b and clutch planar ends 134c, make the transmission can not carrying out moment between drive motors and driving shaft 14.
Door closure assembly opening procedure: enabling gate cap assemblies opens switch, drive motors 11 and solenoid 134 switch are connected simultaneously, the gear plane end 132b of clutch planar ends 134c and the second gear 132 is became one by adhesive, rely on frictional force carry-over moment, thus, moment is passed to the second gear 132 by the first gear 131 by described drive motors 11, then drives driving shaft 14 to rotate by door closure opening direction by decelerator 12, and driving shaft 14 drives door closure assembly 2 to open.When enabling sense switch 41 detects that described door closure assembly 2 is in unlatching completion status, described drive motors 11 and solenoid 134 switch are closed, now due to power-off, the gear plane end 132b of clutch planar ends 134c and the second gear 132 depart from from.
In door closure assembly opening procedure; once door closure assembly 2 is subject to, foreign object stops, has foreign matter between door closure assembly and workbench 4, maloperation, situation and the moment of torsion that makes load torque exceed electromagnetic clutch assembly 13 to set such as to close the door by force; skid between electromagnetic clutch assembly 13 middle gear planar ends 132b and clutch planar ends 134c; make the transmission can not carrying out moment between drive motors and driving shaft 14, thus play the effect of overload protection.
Door closure assembly closing course: enabling gate cap assemblies closing switch, drive motors 11 and solenoid 134 switch are connected simultaneously, the gear plane end 132b of clutch planar ends 134c and the second gear 132 is became one by adhesive, rely on frictional force carry-over moment, thus, moment is passed to the second gear 132 by the first gear 131 by described drive motors 11, driving shaft 14 is driven to rotate by door closure closing direction by decelerator 12 again, driving shaft 14 drives door closure assembly 2 to close, when sense switch 42 of closing the door detects that described door closure assembly 2 is in closedown completion status, described drive motors 11 and solenoid 134 switch are closed, now due to power-off, the gear plane end 132b of clutch planar ends 134c and the second gear 132 depart from from.
In door closure assembly 2 closing course; once door closure assembly 2 is subject to, foreign object stops, has foreign matter between door closure assembly and workbench 4, maloperation, situation and the moment of torsion that makes load torque exceed electromagnetic clutch assembly 13 to set such as to close the door by force; skid between electromagnetic clutch assembly 13 middle gear planar ends 132b and clutch planar ends 134c; make the transmission can not carrying out moment between drive motors and driving shaft 14, thus play the effect of overload protection.
Switch (not shown) opened by above-mentioned driving mechanism assembly, sense switch, solenoid switch, door closure assembly, door closure assembly closing switch (not shown) is all controlled by program controller (not shown).
In addition, washing process midway power-off, the first gear 131 now in described electromagnetic clutch assembly 13 and the second gear 132 depart from, not carry-over moment, be equivalent to " neutral ", now only have very little frictional force effect in decelerator 12, can manual unlocking or close door closure assembly 2 very easily.
Above the door of washing machine cover self-opening device that this practicality provides is described in detail, apply concrete preferred embodiment in this introduction to set forth the principle of this practicality and embodiment, these embodiments are just for helping principle and the core concept of understanding this practicality, should be understood that, for the person of ordinary skill of the art, under the prerequisite not departing from this practical design thought, embodiment in above-described embodiment can combine further or replace, some improvement and modification can be carried out to this practicality, these improve and modify and also fall in the protection domain of this practical claim.