CN1876945A - Washing machine door switch and control method thereof - Google Patents
Washing machine door switch and control method thereof Download PDFInfo
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- CN1876945A CN1876945A CN 200510013760 CN200510013760A CN1876945A CN 1876945 A CN1876945 A CN 1876945A CN 200510013760 CN200510013760 CN 200510013760 CN 200510013760 A CN200510013760 A CN 200510013760A CN 1876945 A CN1876945 A CN 1876945A
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Abstract
The invention discloses a gate lock switch and controlling means of washer. The gate lock switch comprising: switch casing; slide block which used to lock the pothook of gate in switch casing or separated from switch casing and that set on switch casing by mobile manner; lockpin which can hitch/loosen slide block; bimetallic strip which can move between the position of lockpin hitching slide block and loosening slide block; switch which can contact with contact point when the lockpin moving to the place of hitching slide block; safety pole which can cutting switch contact point by the manner of moving lockpin when the door is opened by force. The provided gate lock switch and controlling means of washer by this invention can rapidly cut the power of washer electric driving device when the washer door be opened by force, thus there is no need to install gate switch, so that this can make the structure and control of washer more simple. In addition, the set magnet coil in washer can expedite the rupturing operation of electric driving device powder.
Description
Technical field
The present invention relates to a kind of washing machine door switch and control method thereof, particularly relate to a kind of washing machine door switch and the control method thereof that when the user opens door of washing machine by force, can cut off electric driver electric current on the washing machine automatically.
Background technology
In general, washing machine is the device that a kind of effect that utilizes washing agent and washings removes spot on the washings such as clothing, bedding, and it mainly cleans washings as power source by processes such as washing, rinsing and dehydrations with motor.Fig. 1 is the washing machine three-dimensional structure diagram of prior art.Fig. 2 is a door interlock switch control device composition frame chart in the washing machine of prior art.As Fig. 1 and shown in Figure 2, the washing machine of this prior art comprises: the casing 2 that is formed with the washings dispensing port on it; The not shown inboard that is arranged on casing 2, and urceolus that can holding washing water; Rotatably be arranged on the inboard of urceolus, and can place the cylinder 10 of washings; Be installed in the below of urceolus and motor 12 that can swing roller 10; The water supply installation 14 of washings can be provided for urceolus; Can discharge the drainage arrangement 16 of wash water in the urceolus; Be arranged on the casing 2, and can control door 4 the door interlock switch 6 that can open and close the washings dispensing port.Door interlock switch 6 can pin or unclamp the hook 5 on the door 4 according to the signal of control part 20.When door interlock switch 6 was not connected power supply, the user can freely open or close door 4.But after door interlock switch 6 was connected power supply, it can prevent that linking up with 5 is separated from, and this moment, the user just can not at will open door 4.If the user spurs door 4 o'clock by force under the state of door interlock switch 6 connection power supplys, hook 5 just might be separated from door interlock switch 6, thereby door 4 situations about being opened occur.So, the door switch of can detecting gate 4 whether opening 8 has been installed on casing 2 in order to guarantee can cut off the electric current of motor 12 electric drivers such as grade when door 4 is opened by force.Drawing reference numeral 22 can be to the control panel of washing machine input washing/rinsing/operational orders such as dehydration for the user.But, owing to door switch 8 on the washing machine with said structure is installed separately with door interlock switch 6, thereby the structure more complicated of casing 2, and the operation quantity of assembling is more.In addition, the control method of described washing machine door switch is an electric driver such as ability control gate lock-switch 6 and motor 12 after door switch 8 detects the open and-shut mode of door 4, thereby its control procedure more complicated.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of door interlock switch that can utilize to come detecting gate whether to be opened by force, and can stop electric driver fast, thereby can make structure and the simple more washing machine door switch of control and the control method thereof of washing machine.
In order to achieve the above object, washing machine door switch provided by the invention comprises: switch housing; Be arranged on slide block on the switch housing in a movable manner for the hook look on the door being fixed in the switch housing or being separated with switch housing; Can tangle/unclamp the lock pin of slide block; Can make lock pin tangle the slide position and unclamp the bimetal leaf that moves between the slide position; At lock pin to tangling the switch that can touch the contact when move the slide position; With can be when door be opened by force the safety pole of mode cut-off switch contact by mobile lock pin.
One end of described safety pole is connected on the switch housing, and can rotate, the other end then extend to can with the contacted position of hook on the door, and the one middle side part protrudes and to be formed with the projection that can push lock pin.
Be formed with on the described safety pole other end and rotate delay portion, it can postpone the rotation of safety pole when door is opened, thereby anti-limited slip block hangs on the projection.
The door interlock switch of described washing machine also comprises can be to the backspring of door opening direction pulling safety pole.
The door interlock switch of described washing machine also comprises the heater that can add thrermostatic bimetal-plate.
Described door interlock switch also comprises the fixed contact piece that is electrically connected with the electric driver of washing machine; But be arranged on the bimetal leaf and with the moving contacting plate that can provide the electric current supply portion of electric current to be electrically connected to electric driver.
The door interlock switch of described washing machine also comprises can make bimetal leaf produce the solenoid of distortion.
The control method of washing machine door switch provided by the invention comprises: after closing door of washing machine and starting washing machine, bimetal leaf moves lock pin and the door close lock-switch to tangling the slide position, and connects the 1st stage of washing machine electric driver power supply; After the 1st stage, if door is opened by force, safety pole moves lock pin to unclamping the slide position, thereby makes the 2nd stage of bimetal leaf cut-off switch contact; With the 3rd stage of cutting off washing machine electric driver electric current behind the cut-off switch contact.
Connecting in the power supply process,, then cut off the electric current of washing machine electric driver if the contact of switch disconnects for adding the heater that thrermostatic bimetal-plate is provided with.
Connecting in the power supply process,, then cut off the electric current of washing machine electric driver if the contact of switch disconnects for adding the solenoid that thrermostatic bimetal-plate is provided with.
The control method of washing machine door switch provided by the invention comprises: connects under the power supply situation at heater, if the contact of switch disconnects, and detecting gate the 1st stage of whether being opened by force then; If opened by force for door with the testing result in the 1st stage, then cut off the 2nd stage of electric driver electric current.
Described electric driver be can rotary drum motor.
Described electric driver is can be to the feed water valve of urceolus water supply.
Cut off the power supply of washing machine electric driver when washing machine door switch provided by the invention and control method thereof can make door of washing machine be opened by force rapidly, thereby need not to install in addition door switch, so can make the structure of washing machine and control simpler.In addition, the solenoid that is provided with in the washing machine can be accelerated the rupturing operation of electric driver power supply.
Description of drawings
Below in conjunction with the drawings and specific embodiments washing machine door switch provided by the invention and control method thereof are elaborated.
Fig. 1 is the washing machine three-dimensional structure diagram of prior art.
Fig. 2 is a door interlock switch control device composition frame chart in the washing machine of prior art.
Fig. 3 is the washing machine three-dimensional structure diagram that door interlock switch of the present invention is installed.
Fig. 4 door interlock switch the 1st example structure cutaway view of the present invention when separating with hook.
Fig. 5 is and hook door interlock switch the 1st example structure cutaway view of the present invention when combining.
Door interlock switch the 1st example structure cutaway view of the present invention when Fig. 6 opens by force for door.
Fig. 7 opens back door interlock switch the 1st example structure cutaway view of the present invention by force for door.
Fig. 8 door interlock switch the 2nd example structure cutaway view of the present invention when separating with hook.
Fig. 9 is and hook door interlock switch the 2nd example structure cutaway view of the present invention when combining.
Door interlock switch the 2nd example structure cutaway view of the present invention when Figure 10 opens by force for door.
Figure 11 opens back door interlock switch the 2nd example structure cutaway view of the present invention by force for door.
Figure 12 is the control method flow chart that is used for washing machine door switch the 1st embodiment of the present invention.
Figure 13 is the control method flow chart that is used for washing machine door switch the 2nd embodiment of the present invention.
Critical piece label in the accompanying drawing:
50: door interlock switch 52: shell 53: the washings dispensing port
54: door 55: hook 55a: end
60: switch housing 61: patchhole portion 63: backspring hang-up portion
66: joint pin 67: safety pole baffle plate 70: slide block
71: 73: the 2 protuberances of 72: the 1 protuberances of patchhole portion
80: lock pin 81: upside hang-up portion 82: downside hang-up portion
90: bimetal leaf 91,92: metallic plate 93: heater
100: switch 101: fixed contact piece 102: but moving contacting plate
110: safety pole 111: projection 112: rotate delay portion
113: hinge slot part 120: backspring 114: backspring hang-up portion
116: hang up hole portion 122: switch cover 130: solenoid
131: coil 132: L unshakable in one's determination: tangle the slide position
UL: unclamp the slide position
The specific embodiment
Fig. 3 is the washing machine three-dimensional structure diagram that door interlock switch provided by the invention is installed.As shown in Figure 3, door interlock switch 50 is installed in washings dispensing port 53 1 sides on the shell 52, to be used to lock or to unclamp hook 55 on the door 54 that can open and close washings dispensing port 53.The inside of door interlock switch 50 is provided with circuit, and it can disconnect motor that can swing roller, the water supply installation that supplies water for urceolus and the electric current of discharging the drainage arrangement (following general designation electric driver) of wash water in the urceolus when door 54 is opened by force.Drawing reference numeral 56 is for being installed in the cylinder of washing machine shell 52 inside; Drawing reference numeral 57 is on the inner surface that is installed in cylinder 56 and washings can be promoted the lifting member that makes its falling behind the certain altitude; Drawing reference numeral 58 is then for importing the control panel of user operation commands.
Fig. 4 door interlock switch the 1st example structure cutaway view of the present invention when separating with hook.Fig. 5 is and hook door interlock switch the 1st example structure cutaway view of the present invention when combining.Door interlock switch the 1st example structure cutaway view of the present invention when Fig. 6 opens by force for door.Fig. 7 opens back door interlock switch the 1st example structure cutaway view of the present invention by force for door.As shown in Figure 4 to 7, described door interlock switch 50 comprises switch housing 60; Be arranged on slide block 70 on the switch housing 60 in a movable manner for the hook on the door 54 55 being locked in the switch housing 60 or being separated with switch housing 60; Can tangle/unclamp the lock pin 80 of slide block 70; Can make lock pin 80 tangle slide position (L) and unclamp the bimetal leaf 90 that moves between the slide position (UL); Can touch the switch 100 of contact at lock pin 80 when mobile to tangling slide position (L); Can be when door 54 be opened by force the safety pole 110 of mode cut-off switch 100 contacts by mobile lock pin 80; With the backspring 120 that can promote safety pole 110 to the opening direction of door 54.Switch housing 60 is to utilize jockey such as fixed screw to be fixed on washings dispensing port 53 1 sides of shell 52, is formed with the patchhole portion 61 that can insert hook 55 on it.Slip into for the ease of linking up with 55, a side 62 of patchhole portion 61 is formed slopely.Also be formed with the backspring hang-up portion 63 that an end of backspring 120 can be tangled on the switch housing 60.In addition, on the switch housing 60 spring 64 is installed.Spring 64 can elongate when slide block 70 is retreated by hook 55 promotions, and restores when hook 55 is extracted from patchhole portion 61.One end of spring 64 is fixed on the extension projection 65 of switch housing 60, and the other end then is fixed on the slide block 70.Be formed with on the face opposite on the switch housing 60 with patchhole portion 61 can hinged safety pole 110 joint pin 66.In addition, the outstanding safety pole baffle plate 67 that can prevent that safety pole 110 breaks away from that is formed with on the switch housing 60.Hook 55 is installed on the door 54, and it can turn an angle, and by the backspring elasticity support that is arranged in the door 54.Be formed with the patchhole portion 71 that can insert hook 55 on the slide block 70.Can be pushed open by hook 55 for making slide block 70, patchhole portion 71 1 sides on the slide block 70 are formed with sweeping the 1st protuberance 72, its opposite side then is formed with sweeping the 2nd protuberance 73, and it can restriction link up with 55 move left and right when hook 55 hangs on the switch housing 60.Be formed with the upper and lower side hang-up portion 81,82 that can insert bimetal leaf 90 part-structures on the lock pin 80.Bimetal leaf 90 is by being close together and two metallic plates that coefficient of thermal expansion is different 91,92 constitute, and it is installed in the position that can be heated by the heater 93 that is arranged at switch housing 60 inside.Promptly an end of two metallic plates 91,92 is fixed on heater 93 or the switch housing 60, and the other end then is inserted between the upper and lower side hang-up portion 81,82 of lock pin 80.Heater 93 is for being installed in the various heaters such as PTC ceramic heater on the switch housing 60 or spiral heater any one.Described switch 100 comprises the fixed contact piece 101 that is electrically connected with the electric driver of washing machine; Be installed on the bimetal leaf 90, but and the moving contacting plate 102 that is electrically connected with the electric current supply portion of electric driver.One end of safety pole 110 is connected on the switch housing 60, and can rotate, the other end then extend to can with hook 55 contacted positions, and the one middle side part protrudes and to be formed with the projection 111 that can push lock pin 80.Be formed with on the other end of safety pole 110 and rotate delay portion 112, it can postpone the rotation of safety pole 110 when door 54 is opened, thereby anti-limited slip block 70 hangs on the projection 111.Rotate the rake 112a that delay portion 112 comprises that the end 55a that can make hook 55 slides thereon; With extend and form from rake 112a, and and other position of safety pole 110 between the end difference 112b of location difference.Be formed with joint pin 66 that can insert switch housing 60 and the hinge slot part 113 that it is rotated in inside on one end of safety pole 110.Also be formed with the backspring hang-up portion 114 that can tangle backspring 120 other ends on the safety pole 110 and can tangle safety pole baffle plate 67, thus the hang-up hole portion 116 of restriction safety pole baffle plate 67 inordinate rotation.Drawing reference numeral 122 is for being combined in the switch cover on the switch housing 60.The washing machine course of work with said structure is as follows: at first, the user puts into cylinder 56 with washings, rotate the door 54 that to close washings dispensing port 53 then, link up with 55 end 55a this moment and will pass patchhole portion 61 on the switch housing 60 and the patchhole portion 71 on the slide block 70 successively, and as shown in Figure 5 to the 1st protuberance 72 of a thruster movable slider 70, thereby promote safety pole 110 to the direction that door 54 is closed, making safety pole 110 is that the center turns an angle with joint pin 66.Slide block 70 will elongate spring 64 when a side is slided under hook 55 promotion, and the 2nd protuberance 73 will arrive and can limit the position of linking up with 55 move left and right, link up with patchhole portion 61 next doors that 55 end 55a will hang over switch housing 60 at this moment.After this, the washing machine if the user is turned round, washing machine are connected power supply in order to pin door 54 with heater 93.When heater 93 is connected power supply, will produce heat, thereby add thrermostatic bimetal-plate 90.As shown in Figure 5, bimetal leaf 90 will be according to the thermal expansion rate variance of two metallic plates 91,92 and to the direction bending with low-thermal-expansion rate metallic plate, thereby but makes moving contacting plate 102 contacts on fixed contact piece 101.When but moving contacting plate 102 contacts with fixed contact piece 101, electric drivers such as the motor of washing machine, water supply installation or drainage arrangement will become the state that is connected with electric current supply portion.In addition, will be during bimetal leaf 90 bendings to tangling the mobile lock pin 80 in slide position (L), thereby make lock pin 80 block slide block 70 and make it can not get back to original position, and, therefore can keep tangling the state of hook 55 and lock door 54 because the 2nd protuberance 73 is positioned at the position that can limit hook 55 move left and right.Under this state washing machine will drive that electric driver washs according to the instruction of user input, processes such as rinsing, dehydration and oven dry.If the door 54 of washing machine is by people's fiercely pulling forward in carrying out the aforesaid operations process, as shown in Figure 6, hook 55 will move with the direction that door 54 is opened to door 54, its end 55a will the opposite direction when hook 55 inserts promotes the 2nd protuberance 73 of slide block 70, slide along the rake 112a that rotates delay portion 112 simultaneously, then contact with end difference 112b.If continue pulling door 54, as shown in Figure 7, the end 55a of hook 55 will be successively spins off from the patchhole portion 61 of the patchhole portion 71 of slide block 70 and switch housing 60.At this moment, the direction that safety pole 110 will be opened to door 54 under the restoring force effect of backspring 120 is rotated, and projection 111 will be pressed on the lock pin 80 and forwards mobile lock pin 80, thereby make bimetal leaf 90 become thermal expansion shape before, but this moment, fixed contact piece 101 disconnected with moving contacting plate 102 contacted contacts.If but fixed contact piece 101 and moving contacting plate 102 contacted contacts disconnect, electric drivers such as the motor of washing machine, water supply installation or drainage arrangement will not have electric current to flow into, and these electric drivers are with out of service thus.Again close the words of door 54 if desired, as shown in Figure 5, the end 55a of hook 55 will make the 1st protuberance 72 of slide block 70 slide to a side on the door 54, the 2nd protuberance 73 then arrival can limit the position of linking up with 55 move left and right, and the direction of closing to door promotes safety pole 110, making safety pole 110 is that the center turns an angle with joint pin 66, thereby hangs over patchhole portion 61 next doors of switch housing 60.When safety pole 110 rotates, before will have been utilized because of thermal expansion produces crooked bimetal leaf 90 and move to tangling slide position (L) once more by projection 111 lock pins that press 80, but fixed contact piece 101 and moving contacting plate 102 will contact again, thereby connect the power supply of the electric drivers such as motor, water supply installation or drainage arrangement of washing machine.Afterwards, if the user restarts washing machine, then these electric drivers will turn round once more, thereby wash, various processes such as rinsing, dehydration and oven dry.The whole operation process finishes post-heater 93 and will close, bimetal leaf 90 will cool off gradually and return to shape before the thermal expansion this moment, but the contact that fixed contact piece 101 and moving contacting plate are 102 will disconnect, disconnect the electric current of electric driver thus, lock pin 80 will move to unclamping slide position (UL) under the effect of bimetal leaf 90 simultaneously.When the user need take out washings and again during pulling door 54, hook 55 end 55a will the opposite direction when hook 55 inserts promotes the 2nd protuberance 73 of slide block 70, slide along the rake 112a that rotates delay portion 112 simultaneously, then contact, last from the patchhole portion 61 of the patchhole portion 71 of slide block 70 and switch housing 60, spin off successively with end difference 112b.
Fig. 8 door interlock switch the 2nd example structure cutaway view of the present invention when separating with hook.Fig. 9 is and hook door interlock switch the 2nd example structure cutaway view of the present invention when combining.Door interlock switch the 2nd example structure cutaway view of the present invention when Figure 10 opens by force for door.Figure 11 opens back door interlock switch the 2nd example structure cutaway view of the present invention by force for door.As Fig. 8～shown in Figure 11, the door interlock switch 50 in the present embodiment also is included as and makes lock pin 80 to tangling that slide position (L) is moved and the solenoid 130 that makes bimetal leaf 90 distortion.Except solenoid 130, other formation is identical with the 1st embodiment, therefore no longer is described in detail here.Solenoid 130 is by spirally-wound coil 131 and utilize the magnetic field of coil 131 generations that the iron core 132 of bimetal leaf 90 generation distortion is constituted.As shown in Figure 9, when the heater in the door interlock switch 50 93 is connected power supply, under the magnetic field effect that coil on the solenoid 130 131 produces, unshakable in one's determination 132 will move forward, thereby make the direction bending of a lateral fixation contact chip 101 of bimetal leaf 90, but fixed contact piece 101 and moving contacting plate 102 are contacted more rapidly and securely.In addition, as shown in figure 11, when the projection on the safety pole 110 111 is pushed down lock pin 80, the iron core 132 of solenoid 130 will be pressed with bimetal leaf 90, cut off electric current thus.
Figure 12 is the control method flow chart that is used for washing machine door switch the 1st embodiment of the present invention.As shown in figure 12, washing machine door switch control method of the present invention comprises: at first, after the user imports the washing machine operating instruction, heater 93 is connected the S1 of power supply in order to pin door 54, the S2 stage; Heater 93 can produce heat when connecting power supply, thereby adds thrermostatic bimetal-plate 90.As shown in Figure 5, bimetal leaf 90 will be according to two metallic plates 91,92 thermal expansion rate variance is to the metallic plate direction bending of low-thermal-expansion rate, but moving contacting plate 102 contacts at this moment are on fixed contact piece 101, thereby the S3 stage of connecting the electric driver power supplys such as motor, water supply installation or drainage arrangement of washing machine; Can be during bimetal leaf 90 bendings to tangling the mobile lock pin 80 in slide position (L), thereby make lock pin 80 block slide block 70 and make it can not get back to original position, and, therefore can keep tangling the state of hook 55 and lock door 54 because the 2nd protuberance 73 is positioned at the position that can limit hook 55 move left and right.Under this state washing machine will drive that electric driver washs according to the instruction of user input, processes such as rinsing, dehydration and oven dry.If the door 54 of washing machine is by people's fiercely pulling forward in carrying out the aforesaid operations process, as shown in Figure 6, hook 55 will move with the direction that door 54 is opened to door 54, its end 55a will the opposite direction when hook 55 inserts promotes the 2nd protuberance 73 of slide block 70, slide along the rake 112a that rotates delay portion 112 simultaneously, then contact with end difference 112b.If continue pulling door 54, as shown in Figure 7, the end 55a of hook 55 will be successively spins off from the patchhole portion 61 of the patchhole portion 71 of slide block 70 and switch housing 60.At this moment, the direction that safety pole 110 will be opened to door 54 under the restoring force effect of backspring 120 is rotated, and projection 111 will be pressed on the lock pin 80 and forwards mobile lock pin 80, thereby make bimetal leaf 90 become shape before the thermal expansion, but this moment fixed contact piece 101 and S4 stage of disconnecting of moving contacting plate 102 contacted contacts; If but fixed contact piece 101 and moving contacting plate 102 contacted contacts disconnect, electric drivers such as the motor of washing machine, water supply installation or drainage arrangement will not have electric current to flow into, and these electric drivers are with out of service thus.Again close the words of door 54 if desired, as shown in Figure 5, the end 55a of hook 55 will make the 1st protuberance 72 of slide block 70 slide to a side on the door 54, the 2nd protuberance 73 then arrival can limit the position of linking up with 55 move left and right, and the direction of closing to door promotes safety pole 110, making safety pole 110 is that the center turns an angle with joint pin 66, thereby hangs over patchhole portion 61 next doors of switch housing 60.When safety pole 110 rotates, before will have been utilized because of thermal expansion produces crooked bimetal leaf 90 and move to tangling slide position (L) once more by projection 111 lock pins that press 80, but fixed contact piece 101 and moving contacting plate 102 will contact again, thereby connect the power supply of the electric drivers such as motor, water supply installation or drainage arrangement of washing machine.Afterwards, if the user restarts washing machine, then these electric drivers will turn round once more, thereby wash, various processes such as rinsing, dehydration and oven dry.The whole operation process finishes post-heater 93 and will close, bimetal leaf 90 will cool off gradually and return to shape before the thermal expansion this moment, but the contact that fixed contact piece 101 and moving contacting plate are 102 will disconnect, disconnect the electric current of electric driver thus, lock pin 80 will move to unclamping slide position (UL) under the effect of bimetal leaf 90 simultaneously.When the user need take out washings and again during pulling door 54, hook 55 end 55a will the opposite direction when hook 55 inserts promotes the 2nd protuberance 73 of slide block 70, slide along the rake 112a that rotates delay portion 112 simultaneously, then contact the last S5 stage that from the patchhole portion 61 of the patchhole portion 71 of slide block 70 and switch housing 60, spins off successively with end difference 112b.
Figure 13 is the control method flow chart that is used for washing machine door switch the 2nd embodiment of the present invention.As shown in figure 13, washing machine door switch control method of the present invention comprises: at first, after the user imports the washing machine operating instruction, heater 93 and solenoid 130 connected the S11 of power supplys in order to pin door 54, the S12 stage; Heater 93 can produce heat when connecting power supply, thereby adds thrermostatic bimetal-plate 90.As shown in Figure 9, bimetal leaf 90 will be according to the thermal expansion rate variance of two metallic plates 91,92 and to the metallic plate direction bending of low-thermal-expansion rate, but moving contacting plate 102 contacts at this moment are on fixed contact piece 101.Meanwhile, under the magnetic field effect that coil on the solenoid 130 131 produces, unshakable in one's determination 132 will move forward, thereby make the direction bending of a lateral fixation contact chip 101 of bimetal leaf 90, but fixed contact piece 101 and moving contacting plate 102 are contacted more rapidly and securely.But when contacting with fixed contact piece 101, will connect moving contacting plate 102 the S13 stage of the electric driver power supplys such as motor, water supply installation or drainage arrangement of washing machine; As shown in Figure 9, can be during bimetal leaf 90 bendings to tangling the mobile lock pin 80 in slide position (L), thereby make lock pin 80 block slide block 70 and make it can not get back to original position, and, therefore can keep tangling the state of hook 55 and lock door 54 because the 2nd protuberance 73 is positioned at the position that can limit hook 55 move left and right.Under this state washing machine will drive that electric driver washs according to the instruction of user input, processes such as rinsing, dehydration and oven dry.If the door 54 of washing machine is by people's fiercely pulling forward in carrying out the aforesaid operations process, as shown in figure 11, hook 55 will be successively spins off from the patchhole portion 61 of the patchhole portion 71 of slide block 70 and switch housing 60.Simultaneously, safety pole 110 will rotate to the opening direction of door 54, thereby promotes lock pin 80 forward, so that bimetal leaf 90 becomes the shape before the thermal expansion, but S14 stage of the contact disconnection that contacts with moving contacting plate 102 of fixed contact piece 101 thus; If but the contact of fixed contact piece 101 and moving contacting plate 102 disconnects, then the power supply of electric drivers such as the motor of washing machine, water supply installation or drainage arrangement will be cut off, so these electric drivers are with the S15 stage out of service.
Claims (13)
1, a kind of washing machine door switch is characterized in that: described washing machine door switch (50) comprising: switch housing (60); Be arranged on slide block (70) on the switch housing (60) in a movable manner for the hook (55) on the door (54) being locked in the switch housing (60) or being separated with switch housing (60); Can tangle/unclamp the lock pin (80) of slide block (70); Can make lock pin (80) tangle slide position (L) and unclamp the bimetal leaf (90) that moves between the slide position (UL); Can touch the switch (100) of contact at lock pin (80) when mobile to tangling slide position (L); With can be when door (54) be opened by force the safety pole (110) of mode cut-off switch (100) contact by mobile lock pin (80).
2, washing machine door switch according to claim 1, it is characterized in that: an end of described safety pole (110) is connected on the switch housing (60), and can rotate, the other end then extends to and can go up hook (55) contacted position with door (54), and one middle side part protrusion is formed with the projection (111) that can push lock pin (80).
3, washing machine door switch according to claim 2, it is characterized in that: be formed with the delay portion (112) that rotates on described safety pole (110) other end, it can postpone the rotation of safety pole (110) when opening when door (54), thereby anti-limited slip block (70) hangs on the projection (111).
4, washing machine door switch according to claim 1 is characterized in that: the door interlock switch of described washing machine (50) also comprises can be to the backspring (120) of door (54) opening direction pulling safety pole (110).
5, washing machine door switch according to claim 1 is characterized in that: the door interlock switch of described washing machine (50) also comprises the heater (93) that can add thrermostatic bimetal-plate (90).
6, according to each described washing machine door switch in the claim 1 to 5, it is characterized in that: described door interlock switch (50) also comprises the fixed contact piece (101) that is electrically connected with the electric driver of washing machine; Be arranged on bimetal leaf (90) but go up and with the moving contacting plate (102) that can provide the electric current supply portion of electric current to be electrically connected to electric driver.
7, according to the door interlock switch of each described washing machine in the claim 1 to 5, it is characterized in that: the door interlock switch of described washing machine (50) also comprises can make bimetal leaf (90) produce the solenoid (130) of distortion.
8, a kind of control method of washing machine door switch as claimed in claim 1, it is characterized in that: the control method of described washing machine door switch comprises: after closing door of washing machine (54) and starting washing machine, bimetal leaf (90) moves lock pin (80) and door close lock-switch (50) to tangling slide position (L), and connects the 1st stage of washing machine electric driver power supply; After the 1st stage, if door (54) is opened by force, safety pole (110) moves lock pin (80) to unclamping slide position (UL), thereby makes the 2nd stage of bimetal leaf (90) cut-off switch contact; With the 3rd stage of cutting off washing machine electric driver electric current behind the cut-off switch contact.
9, the control method of washing machine door switch according to claim 8, it is characterized in that: connecting in the power supply process for adding the heater (93) that thrermostatic bimetal-plate (90) is provided with, if the contact of switch (100) disconnects, then cut off the electric current of washing machine electric driver.
10, the control method of washing machine according to claim 8, it is characterized in that: connecting in the power supply process for adding the solenoid (130) that thrermostatic bimetal-plate (90) is provided with, if the contact of switch (100) disconnects, then cut off the electric current of washing machine electric driver.
11, a kind of control method of washing machine door switch as claimed in claim 1, it is characterized in that: the control method of described washing machine door switch comprises: connect under the power supply situation at heater (93), if the contact of switch (100) disconnects, detecting gate (54) the 1st stage of whether being opened by force then; If opened by force for door (54) with the testing result in the 1st stage, then cut off the 2nd stage of electric driver electric current.
12, the control method of each described washing machine door switch in 11 according to Claim 8 is characterized in that: described electric driver is motor that can rotary drum (56).
13, the control method of each described washing machine door switch in 11 according to Claim 8 is characterized in that: the feed water valve of described electric driver for supplying water to urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013760 CN1876945A (en) | 2005-06-10 | 2005-06-10 | Washing machine door switch and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013760 CN1876945A (en) | 2005-06-10 | 2005-06-10 | Washing machine door switch and control method thereof |
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| CN1876945A true CN1876945A (en) | 2006-12-13 |
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| CN 200510013760 Pending CN1876945A (en) | 2005-06-10 | 2005-06-10 | Washing machine door switch and control method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988258A (en) * | 2009-07-31 | 2011-03-23 | Lg电子株式会社 | Laundry treatment machine and control method thereof |
| CN101463547B (en) * | 2007-12-17 | 2012-06-06 | 日本电产三协株式会社 | Cover locking device |
| CN102498244A (en) * | 2009-09-10 | 2012-06-13 | 伊利诺斯工具制品有限公司 | Appliance lock with mechanical door sensor |
| CN106012427A (en) * | 2016-07-07 | 2016-10-12 | 神龙电气有限公司 | Door forcibly pull-opening based power failure protection mechanism of washing machine door lock switch |
| CN106436176A (en) * | 2016-11-17 | 2017-02-22 | 温州天健电器有限公司 | Washing machine door locking device |
| CN111386374A (en) * | 2017-09-06 | 2020-07-07 | 罗德电工有限公司 | Device for closing and opening a hatch door, in particular for a hatch door of a household appliance such as a washing machine or the like |
| CN114482812A (en) * | 2022-01-25 | 2022-05-13 | 山东小鸭集团洗涤机械有限公司 | Automatic door calibration device of isolated washing and dehydrating machine |
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2005
- 2005-06-10 CN CN 200510013760 patent/CN1876945A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463547B (en) * | 2007-12-17 | 2012-06-06 | 日本电产三协株式会社 | Cover locking device |
| CN101988258B (en) * | 2009-07-31 | 2012-10-03 | Lg电子株式会社 | Laundry treatment machine and control method thereof |
| CN101988258A (en) * | 2009-07-31 | 2011-03-23 | Lg电子株式会社 | Laundry treatment machine and control method thereof |
| US9487907B2 (en) | 2009-09-10 | 2016-11-08 | Illinois Tool Works, Inc. | Appliance lock with mechanical door sensor |
| CN102498244B (en) * | 2009-09-10 | 2016-08-03 | 伊利诺斯工具制品有限公司 | There is the electrical equipment lock of mechanical door sensor |
| CN102498244A (en) * | 2009-09-10 | 2012-06-13 | 伊利诺斯工具制品有限公司 | Appliance lock with mechanical door sensor |
| CN106087346A (en) * | 2009-09-10 | 2016-11-09 | 伊利诺斯工具制品有限公司 | There is the electrical equipment lock of mechanical door sensor |
| CN106087346B (en) * | 2009-09-10 | 2019-08-23 | 伊利诺斯工具制品有限公司 | Electrical equipment lock with mechanical door sensor |
| CN106012427A (en) * | 2016-07-07 | 2016-10-12 | 神龙电气有限公司 | Door forcibly pull-opening based power failure protection mechanism of washing machine door lock switch |
| CN106012427B (en) * | 2016-07-07 | 2018-02-02 | 神龙电气有限公司 | Washing machine door switch hales door opening electrical outage protection mechanism |
| CN106436176A (en) * | 2016-11-17 | 2017-02-22 | 温州天健电器有限公司 | Washing machine door locking device |
| CN111386374A (en) * | 2017-09-06 | 2020-07-07 | 罗德电工有限公司 | Device for closing and opening a hatch door, in particular for a hatch door of a household appliance such as a washing machine or the like |
| CN114482812A (en) * | 2022-01-25 | 2022-05-13 | 山东小鸭集团洗涤机械有限公司 | Automatic door calibration device of isolated washing and dehydrating machine |
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Open date: 20061213 |