WO2010098097A1 - 食器洗い機 - Google Patents

食器洗い機 Download PDF

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Publication number
WO2010098097A1
WO2010098097A1 PCT/JP2010/001263 JP2010001263W WO2010098097A1 WO 2010098097 A1 WO2010098097 A1 WO 2010098097A1 JP 2010001263 W JP2010001263 W JP 2010001263W WO 2010098097 A1 WO2010098097 A1 WO 2010098097A1
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WO
WIPO (PCT)
Prior art keywords
cleaning
valve body
nozzle
water
washing
Prior art date
Application number
PCT/JP2010/001263
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
梶浦智彰
乾浩章
Original Assignee
パナソニック株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Priority to CN201080004423.0A priority Critical patent/CN102271569B/zh
Publication of WO2010098097A1 publication Critical patent/WO2010098097A1/ja

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    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • 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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
    • 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
    • A47L2601/00—Washing methods characterised by the use of a particular treatment
    • A47L2601/02—Pressurised cleaning liquid delivered by a pump

Definitions

  • the present invention relates to a dishwasher that cleans tableware using washing water.
  • the washing nozzle of a conventional dishwasher has a structure as shown in FIGS. 11 and 12 (see, for example, Patent Document 1).
  • a rotatable cleaning nozzle 101 for injecting cleaning water into a cleaning tank is divided into four chambers 103a to 103d with a rotating shaft 102 as a center.
  • a propulsion hole 104 that rotates the cleaning nozzle 101 with the spraying power of the cleaning water is provided at the tip of each of the chambers 103a to 103d.
  • a cylindrical receiving tube 106 is provided between the discharge portion 105 of the cleaning water supplied by the pump and the rotating shaft 102 of the cleaning nozzle 101.
  • a float 107 is provided in the receiving tube 106.
  • the float 107 rises while rotating in the receiving cylinder 106 by the cleaning water discharged from the pump, and closes the opening 108a that leads to the opposite rooms 103c and 103d.
  • washing water flows into the rooms 103a and 103b from the open opening 108b.
  • the cleaning water is jetted while the cleaning nozzle rotates.
  • the pump is stopped, the float 107 moves down in the receiving cylinder 106.
  • the float 107 rises while rotating in the receiving cylinder 106 by the cleaning water discharged from the pump, closes the opening 108b leading to the diagonal chambers 103a and 103b, and opens the opening 108a. open. Accordingly, the washing water flows into the diagonal rooms 103c and 103d.
  • the cleaning nozzle 101 is reversed and the cleaning water is jetted while rotating in the reverse direction.
  • the float 107 moves up and down while rotating in the receiving cylinder 106, and reverses the rotation direction of the cleaning nozzle 101.
  • the float 107 while the float 107 is separated from the cleaning nozzle 101, the float 107 and the cleaning nozzle 101 rotate independently of each other, so that the float 107 cannot block the flow path in order. As a result, the direction of rotation of the cleaning nozzle 101 is irregularly changed, causing unevenness in the tableware or the like on which the cleaning water hits, and uneven cleaning.
  • the present invention provides a dishwasher capable of washing dishes without unevenness by reliably switching the flow path in the washing nozzle while saving water, thereby eliminating unevenness of washing water jetting to the dishes. .
  • the dishwasher of the present invention includes a washing tub that accommodates an object to be washed, a washing pump that pressurizes washing water sprayed on the article to be washed, a rotary bearing that is fixed to the washing tub, and a rotary bearing that is rotatably supported. And a cleaning nozzle that injects cleaning water pressurized by the cleaning pump.
  • the cleaning nozzle includes a nozzle portion including a plurality of flow paths having injection ports, and a rotating shaft that incorporates a valve body.
  • the valve body has an opening and a closing portion, and rotates by moving forward and backward in the flowing water direction while rotating together with the cleaning nozzle in the rotating shaft, and supplies the cleaning water to the plurality of flow paths. Switch.
  • valve body rotates together with the washing nozzle, so that the flow path can be reliably switched by the valve body, and the tableware can be sufficiently washed while realizing water saving.
  • the dishwasher of the present invention can surely switch the flow path by the valve body, and can improve the washing effect by eliminating the uneven washing of the tableware while realizing water saving.
  • FIG. 1 is a cross-sectional view of a dishwasher according to a first embodiment of the present invention.
  • FIG. 2 is a partially cutaway top view of the washing nozzle of the dishwasher according to the first embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a main part of the washing nozzle of the dishwasher according to the first embodiment of the present invention.
  • FIG. 4 is a perspective view of main parts of the dishwasher according to the first embodiment of the present invention.
  • FIG. 5 is a perspective view of a main part of the dishwasher according to the first embodiment of the present invention.
  • FIG. 6 is a perspective view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 7 is a top view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 1 is a cross-sectional view of a dishwasher according to a first embodiment of the present invention.
  • FIG. 2 is a partially cutaway top view of the washing nozzle of the dishwasher according to the first
  • FIG. 8 is a bottom view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 10 is a schematic top view illustrating the positional relationship between the valve body and the nozzle portion of the dishwasher according to the first embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of the vicinity of a washing nozzle according to a conventional dishwasher.
  • FIG. 12 is a partially cut-out top view of a washing nozzle according to a conventional dishwasher.
  • FIG. 1 is a cross-sectional view of a dishwasher according to a first embodiment of the present invention.
  • FIG. 2 is a partially cutaway plan view of the washing nozzle of the dishwasher according to the first embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a main part of the washing nozzle of the dishwasher according to the first embodiment of the present invention.
  • 4 and 5 are perspective views of main parts of the dishwasher according to the first embodiment of the present invention.
  • FIG. 6 is a perspective view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 7 is a top view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 8 is a bottom view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the valve body of the dishwasher according to the first embodiment of the present invention.
  • FIG. 10 is a schematic top view illustrating the positional relationship between the valve body and the nozzle portion of the dishwasher according to the first embodiment of the present invention.
  • a main body 1 of a dishwasher is provided with a cleaning tank 2 having an opening (not shown) that can be opened and closed by a door (not shown). It is set in the tableware basket 4 and accommodated in the washing tub 2.
  • the water supply valve 5 is operated by a control unit (not shown) and supplies water to the cleaning tank 2.
  • the cleaning pump 6 pressurizes the cleaning water stored in the cleaning tank 2 and supplies it to the cleaning nozzle 7.
  • the cleaning nozzle 7 cleans the article to be cleaned 3 by spraying cleaning water into the cleaning tank 2.
  • the cleaning water sprayed onto the object to be cleaned 3 includes a detergent liquid for cleaning the object to be cleaned 3 and rinse water for rinsing the object to be cleaned 3.
  • a drain port 8 communicating with the suction side of the cleaning pump 6 is provided at the bottom of the cleaning tank 2.
  • the drainage port 8 includes a drainage filter 9 that collects residue and a residue filter 10.
  • the residue filter 10 is detachable more finely than the drainage filter 9, and the user can remove the residue filter 10 and discard the collected residue.
  • a cleaning water stored in the cleaning tank 2 and a heating element 11 for heating the drying air in the cleaning tank 2 are provided at the bottom of the cleaning tank 2.
  • a temperature sensor 12 for detecting the temperature of the cleaning tank 2 is provided on the bottom outer wall of the cleaning tank 2.
  • the cleaning nozzle 7 provided at the bottom of the cleaning tank 2 is rotatably supported with respect to the rotary bearing 13 by fitting the rotary shaft 14 to the rotary bearing 13 fixed and fixed to the cleaning tank 2. .
  • the cleaning nozzle 7 includes a nozzle portion 100 and a rotating shaft 14, each having a flow path therein.
  • the nozzle portion 100 extends linearly and horizontally on both sides in the vertical direction with respect to the rotation shaft 14 around the rotation shaft 14.
  • the nozzle unit 100 includes a plurality of symmetrical flow paths extending in parallel from the rotating shaft 14 side toward the tip thereof.
  • the nozzle unit 100 has a first cleaning channel inlet 17 and a second cleaning channel inlet 18.
  • the nozzle unit 100 further includes a first cleaning channel 15 communicating with the first cleaning channel inlet 17.
  • the nozzle unit 100 includes a second cleaning channel 16 that communicates with the second cleaning channel inlet 18.
  • the first cleaning channel 15 and the second cleaning channel 16 are provided by dividing the inside of the nozzle unit 100 into four parts by the partition wall 34, and are arranged at two locations so as to be diagonal. Yes.
  • a first injection port 19 is provided on the upper surface side of the first cleaning channel 15.
  • a second injection port 20 is provided on the upper surface side of the second cleaning channel 16.
  • the first cleaning channel inlet 17 is provided at two locations corresponding to the positions of the first cleaning channel 15 so as to be diagonal.
  • the second cleaning channel inlet 18 is provided at two positions diagonally so as to intersect the first cleaning channel inlet 17 corresponding to the second cleaning channel 16.
  • the first cleaning channel inlet 17 and the second cleaning channel inlet 18 are fan-shaped openings having a central angle of about 90 degrees and separated by a partition wall 34. That is, the first cleaning channel inlet 17 and the second cleaning channel inlet 18 are alternately arranged to form a substantially circular opening as shown in FIG.
  • the rotating shaft 14 has a rotating shaft side engaging portion 28 at the bottom of the inner wall.
  • the rotating shaft side engaging portion 28 is formed in a spiral shape, and has a plurality of inclined surfaces 28a inclined in one direction and a plurality of step portions 28b connecting two adjacent inclined surfaces 28a.
  • each step portion 28b and the partition wall 34 of the cleaning nozzle 7 are configured to be shifted by a certain angle (for example, x degrees) when viewed from above the cleaning nozzle.
  • the shaft opening 24 of the rotating shaft 14 shown in FIGS. 3 and 4 is in communication with the discharge side of the cleaning pump 6, and the cleaning pump 6 is rotated by a motor so that the cleaning nozzle 7 is connected to the cleaning nozzle 7 via the shaft opening 24. Washing water is supplied continuously.
  • a valve body 21 that controls the supply of cleaning water to the nozzle unit 100 is provided in the rotary shaft 14.
  • the valve body 21 has a substantially planar shape.
  • the surface A that engages with the valve body 21 on the cleaning channel inlets 17 and 18 side of the nozzle unit 100 is also a planar shape.
  • the valve body 21 has a hollow cylindrical portion 30 at the center of rotation.
  • the valve body 21 has an opening 22 and a closing part 23. Two openings 22 are provided diagonally with the hollow cylindrical portion 30 as the center. Similarly, the closed portion 23 is also provided at two positions diagonally around the hollow cylindrical portion 30.
  • the opening 22 and the closing portion 23 have a fan shape with a central angle of about 90 degrees corresponding to the first cleaning channel inlet 17 and the second cleaning channel inlet 18.
  • a support shaft 29 is formed on the first and second cleaning flow path inlets 17 and 18 side of the nozzle portion 100 so that the hollow cylindrical portion 30 can be inserted.
  • the support shaft 29 serves as a guide portion for the raising operation of the valve body 21.
  • a mountain-shaped upper surface engaging portion 26 is formed on the outer peripheral side of the upper surface of the closing portion 23.
  • a lower surface engaging portion 27 is formed at the outer peripheral end of the lower surface of the closing portion 23.
  • the lower surface engaging portion 27 has an inclined surface having the same angle as the inclined surface of the rotating shaft side engaging portion 28 so that the lower surface engaging portion 27 can be engaged with the rotating shaft side engaging portion 28.
  • a user sets an object to be cleaned 3 such as tableware in the dish basket 4 from the opening of the dishwasher main body 1, and stores the object to be cleaned 3 in the cleaning tank 2.
  • the door is closed to close the opening of the main body 1 of the dishwasher, and the operation is started.
  • a cleaning process for removing dirt from the object to be cleaned 3, a rinsing process for flowing a detergent or residue attached to the object to be cleaned 3, and a drying process for drying water suitable for the object to be cleaned 3 are performed in this order.
  • the control unit operates the water supply valve 5 to supply a predetermined amount of cleaning water to the cleaning tank 2, pressurize the cleaning water by the cleaning pump 6, and inject the cleaning water from the cleaning nozzle 7.
  • the heating element 11 such as a sheathed heater provided in the cleaning tank 2 is energized, and the cleaning process is performed while heating the cleaning water.
  • the temperature sensor 12 detects the temperature of the cleaning water in the cleaning tank 2 through the wall of the cleaning tank 2, and when the temperature sensor 12 detects a predetermined temperature or higher, the control unit energizes the heating element 11. Stop.
  • the cleaning water is circulated by the operation of the cleaning pump 6. Specifically, when the cleaning pump 6 operates, the cleaning water passes through the drainage filter 9 and the residual filter 10 and is sucked into the cleaning pump 6 provided in the circulation path 33. Subsequently, the cleaning pump 6 pressurizes the cleaning water and supplies the cleaning water to the cleaning nozzle 7 provided at the bottom of the cleaning tank 2. The cleaning water supplied from the cleaning pump 6 flows into the rotary shaft 14 from the shaft opening 24 of the rotary shaft 14.
  • the valve body 21 starts to rise upon receiving a water pressure larger than the weight of the valve body 21 from the flowing wash water at the lower surface of the closing portion 23. That is, the valve body 21 receives a water pressure greater than the weight of the valve body 21 from the flowing wash water, and moves toward the first and second cleaning flow path inlets 17 and 18 by receiving the lower surface of the closing portion 23. Then, the valve body 21 is engaged with the nozzle portion 100. Specifically, the upper surface engaging portion 26 engages with the second cleaning channel inlet 18 so that the second cleaning channel inlet 18 and the closing portion 23 coincide with each other. At the same time, the first cleaning channel inlet 17 and the opening 22 of the valve body 21 coincide.
  • the second cleaning channel inlet 18 is blocked by the closing portion 23 of the valve body 21, and the cleaning water flows into the first cleaning channel 15 in the nozzle unit 100 from the first cleaning channel inlet 17. .
  • the washing water that has flowed into the first washing flow path 15 is jetted to the article to be washed 3 from a plurality of first jet ports 19 provided.
  • the cleaning nozzle 7 rotates counterclockwise by the reaction force of the cleaning water jet.
  • the valve body 21 rotates in synchronization with the cleaning nozzle 7 while closing the second cleaning flow path inlet 16.
  • the control unit stops the cleaning pump 6 for a predetermined time.
  • the valve body 21 does not receive water pressure larger than its own weight at the closed portion 23, and thus starts to descend away from the first cleaning flow path inlet 17.
  • the cleaning water pressurized by the stop of the cleaning pump 6 is not supplied to the cleaning nozzle 7.
  • the cleaning water remaining without being injected into the cleaning nozzle 7 starts to flow backward toward the cleaning pump 6, that is, descend.
  • the valve body 21 is located at a position higher than the water level in the cleaning tank 2 in a state where the first or second cleaning flow path inlets 17 and 18 are blocked, the valve body 21 is washed water that flows backward on the upper surface. Receive water pressure. Thereby, since the descending of the valve body 21 is accelerated, the time required for switching the valve body 21 can be shortened.
  • the lowering of the valve body 21 stops when the lower surface engaging portion 27 engages with the rotating shaft side engaging portion 28 of the rotating shaft 14.
  • the valve body 21 rotates in synchronization with the cleaning nozzle 7 when engaged with the rotary shaft side engaging portion 28.
  • the valve body 21 receives water pressure larger than the weight of the valve body 21 from the flowing cleaning water by the lower surface of the closing portion 23 to receive the first and second cleaning flow path inlets 17, Move again towards 18.
  • the valve body 21 is engaged with the nozzle portion 100 again.
  • the upper surface engaging portion 26 is engaged with the first cleaning channel inlet 17 unlike the above, so that the first cleaning channel inlet 17 and the closing portion 23 coincide with each other.
  • the second cleaning channel inlet 18 and the opening 22 of the valve body 21 coincide.
  • the first cleaning channel inlet 17 is closed by the closing portion 23 of the valve body 21, and the cleaning water flows from the second cleaning channel inlet 18 into the second cleaning channel 16 in the nozzle unit 100.
  • the washing water that has flowed into the second washing channel 16 is jetted onto the article to be washed 3 from a plurality of second jet ports 20.
  • the valve body 21 rotates in synchronization with the cleaning nozzle 7 while closing the first cleaning flow path inlet 17. At this time, the cleaning nozzle 7 rotates clockwise by the reaction force of the cleaning water jet. That is, the rotation direction of the cleaning nozzle 7 is reversed by switching the flow path by the valve body 21. Thus, the switching operation of the first and second cleaning flow path inlets 17 and 18 by the valve body 21 is repeated for a predetermined time.
  • valve body 21 is engaged with the rotary shaft side engaging portion 28 when either the first cleaning channel inlet 17 or the second cleaning channel inlet 18 is closed. If there is, the cleaning nozzle 7 rotates in synchronization with the cleaning nozzle 7. Other than that, that is, while the valve body 21 is moving back and forth in the direction of flowing water in the rotating shaft 14 (vertical direction in the present embodiment), it is not completely synchronized with the cleaning nozzle 7. Although details will be described later, the valve body 21 rotates about 90 degrees by moving forward and backward. In other words, when the valve body 21 moves back and forth in the direction of flowing water in the rotating shaft 14, in addition to the rotation angle of the cleaning nozzle 7, the valve body 21 rotates by an amount corresponding to switching the cleaning flow path inlet (about 90 degrees).
  • valve body 21 rotates independently of the cleaning nozzle 7 during the advancing / retreating operation, rotation due to inertia occurs.
  • the time required for the advancement / retraction operation of the valve body 21 is shortened so It is possible to suppress the rotation due to inertia by suppressing the deviation of the rotation. Accordingly, the valve body 21 rotates with respect to the cleaning nozzle 7 by about 90 degrees by the forward / backward movement, thereby realizing a reliable switching of the cleaning flow path.
  • valve body 21 By operating the cleaning pump 6, the valve body 21 receives the water pressure of the cleaning water flowing in from the shaft opening 24 of the rotating shaft 14 at the closing portion 23 and starts to rise. Then, the inclined portion of the upper surface engaging portion 26 shown in FIG. 7 slides on the cross-shaped partition wall 34 provided to separate the flow path in the nozzle portion 100 shown in FIG. Ascending vertically upward. Then, as shown in FIG. 5, the upper surface engaging portion 26 engages with the second cleaning flow path inlet 18, and the closing portion 23 of the valve body 21 faces the second cleaning flow path inlet 18 and the second cleaning flow path inlet 18. The cleaning channel inlet 18 is closed.
  • the opening 22 opens the first cleaning channel inlet 17 so as to face the first cleaning channel inlet 17.
  • the upper surface engaging portion 26 has a shape inclined in the rotational direction, and the valve body 21 is engaged with the second cleaning flow path inlet 18 while sliding on the partition wall 34 and is engaged with the upper surface engaging portion. By the inclination of 26, it is rotated by a first predetermined angle (for example, 45 degrees).
  • the cleaning pump 6 continues to operate for a predetermined time, is fixed at a position where the first cleaning channel inlet 17 is opened, and cleaning water is supplied to the first cleaning channel 15 communicating with the first cleaning channel inlet 17.
  • the valve body 21 does not receive the water pressure larger than its own weight at the closed portion 23, so that the valve body 21 starts to descend due to its own weight away from the first cleaning channel inlet 17.
  • the lower surface engaging portion 27 is engaged while sliding along the inclined surface of the rotating shaft side engaging portion 28 provided on the rotating shaft 14 shown in FIG. It rotates by a predetermined angle (for example, 45 degrees).
  • the valve body 21 stops when the lower surface engaging portion 27 comes into contact with the stepped portion 28b of the rotating shaft side engaging portion 28.
  • valve body 21 moves upward, slides on the partition wall 34, rotates by the first angle, and engages with the first washing channel inlet 17.
  • each of the first cleaning channel inlet 17 and the second cleaning channel inlet 18 has a fan shape whose central angle is the sum of the first angle and the second angle (90 degrees). That is, the valve body 21 is rotated by the total angle (about 90 degrees) of the first angle and the second angle by performing the forward and backward movement, that is, the up and down reciprocating motion once. It rotates by the angle which switches the 2 washing
  • valve body 21 moves forward and backward, and the valve body 21 and the nozzle portion 100 engage with each other, so that the first and second cleaning flow path inlets are opened.
  • the cleaning channel inlets 17 and 18 through which the blocking water sequentially flows and the cleaning water flows can be sequentially switched. Accordingly, since it is not necessary to switch the valve body 21 with an actuator such as a motor, there is nothing other than the valve body 21 in the flow path of the rotating shaft 14 that obstructs the flow of the cleaning water. And the valve body 21 can rotate together. Further, the upper surface engaging portion 26 of the valve body 21 is fitted to the first and second cleaning flow path inlets, and the lower surface engaging portion 27 is fitted to the rotating shaft side engaging portion 28 of the rotating shaft 14.
  • valve body 21 is rotated by fitting the upper surface engaging portion 26 when the cleaning pump 6 is driven, and is rotated by fitting the lower surface engaging portion 27 when the cleaning pump is stopped.
  • the relative positional relationship between the flow path inlet of the cleaning nozzle 7 and the rotating shaft 14 is always matched.
  • the valve body 21 rotates in conjunction with the cleaning nozzle 7, so that the flow path can be reliably switched by the valve body, and the tableware can be sufficiently washed while realizing water saving.
  • a predetermined angle for example, x degrees
  • the cleaning water is sprayed from the spray ports 19 and 20 of the nozzle unit 100, and after cleaning the article 3 to be cleaned, it returns to the drain port 8 again. At this time, the residue or the like dropped off from the object to be cleaned 3 flows into the residue filter 10 together with the cleaning water. Residues larger than the plurality of holes provided in the residue filter 10 that cannot pass through the residue filter 10 are collected by the residue filter 10.
  • the cleaning water containing dirt is discharged out of the dishwasher body 1 and new cleaning water is supplied.
  • the washing pump 6 is operated, and washing water is sprayed from the washing nozzle 7 again to rinse the object 3 to be cleaned, such as detergent and residue.
  • the operation of discharging the cleaning water and supplying the cleaning water again is repeated, and the rinsing process is controlled by the control unit so as to be performed about three times continuously.
  • the washing water is discharged out of the dishwasher body 1 and the rinsing process is completed. Then, after performing a drying process and drying for a predetermined time, an operation
  • the relative positional relationship between the cleaning channel inlet communicating with each cleaning channel of the nozzle portion 100 of the cleaning nozzle 7 and the valve element 21 is always determined at a predetermined position. Can be operated reliably and stably.
  • the cleaning water can be sprayed to the object to be cleaned 3 from a large number of injection ports, the cleaning water can be uniformly sprayed to the object to be cleaned 3 in the entire cleaning tank 2 in a wide range and at a high density.
  • the cleaning performance can be improved. Even if the capacity of the cleaning pump 6 is equal, the cleaning performance can be improved.
  • the support shaft 29 and the hollow cylindrical portion 30 facilitate the movement of the valve body 21 in the flowing direction and the fitting of the valve body 21 with the first and second cleaning flow path inlets 17 and 18.
  • the support shaft 29 since the support shaft 29 is provided on the downstream side of the valve body 21 when viewed from the flow direction of the cleaning water above the valve body 21, the cleaning water flows through the opening 22 of the valve body 21. The flow is not hindered by the support shaft 29. Therefore, the flow resistance by the switching structure provided in the flow path through which the cleaning water flows can be reduced, and the flow path can be switched reliably, so that the cleaning performance can be improved.
  • the hollow cylindrical portion 30 of the valve body 21 is provided with a side wall opening 31 on the side wall including the end face on the inlet side of the cleaning channel, and the fitting clearance between the hollow cylindrical portion 30 of the valve body 21 and the support shaft 29 is provided.
  • the foreign matter that has entered can flow out from the side wall opening 31.
  • the advance / retreat operation failure of the valve element 21 due to foreign matter or the like can be prevented, and the flow path can be switched reliably, so that the cleaning performance can be improved.
  • the end surface substantially perpendicular to the upstream flow of the valve body 21 when viewed from the shaft opening 24 side of the rotating shaft 14, that is, from the flow direction of the washing water, the end surface substantially perpendicular to the upstream flow of the valve body 21 has a bottom. It is closed by a wall 30a, and a drain hole 32 is provided on the side wall. Accordingly, since the cleaning water flowing in from the shaft opening 24 of the rotating shaft 14 and the foreign matter in the cleaning water do not directly enter the hollow cylindrical portion 30, entry of the foreign matter can be prevented.
  • the cleaning pump 6 when the cleaning pump 6 is stopped, the cleaning water or foreign matter that has entered from above the hollow cylindrical portion 30 flows out of the hollow cylindrical portion 30 through the drain hole 32. Accordingly, the structure can withstand actual use and the flow path can be switched reliably, so that the cleaning performance can be improved.
  • a gap D is provided between the valve body 21 and the inner wall of the rotating shaft 14.
  • the rotating shaft side engagement that fits with the lower surface engaging portion 27 of the valve body 21 is performed.
  • the portion 28 can be provided at a position having a diameter larger than the diameter of the shaft opening 24 of the rotating shaft 14. Therefore, the valve body 21 can be smoothly rotated without obstructing the flow of the cleaning water, and a configuration with less flow resistance of the cleaning water can be realized.
  • the rotation of the cleaning nozzle 7 causes the injection ports 19 and 20 to be connected to the rotary shaft 14.
  • the trajectory of the injection ports 19 and 20 within the outer diameter of the cleaning nozzle 7 increases. Accordingly, since the cleaning water can be sprayed more uniformly at a high density to the object to be cleaned 3, the cleaning performance can be improved.
  • the cleaning nozzle 7 is configured so that the rotation direction varies depending on the flow path to which the cleaning water is supplied, thereby changing the rotation direction of the cleaning nozzle 7 and changing the injection angle of the cleaning water from the injection ports 19 and 20. Can be changed. Accordingly, the cleaning water is sprayed from a plurality of angles to the object to be cleaned 3, and the front and back surfaces of the object to be cleaned 3 can be more reliably cleaned, and the cleaning performance can be improved. .
  • the cleaning nozzle 7 is rotated by utilizing the reaction force of the jet flow from the ejection ports 19, 20, the angle of the ejection ports 19, 20 is totally opposite to the rotation direction of the cleaning nozzle 7.
  • the cleaning nozzle 7 is configured to be rotated by the reaction force of the injection, and the total of the rotational force of the injection inclined from directly above becomes the rotational driving force, so that the backward injection increases with respect to the rotation. . For this reason, only in one direction of rotation, there is an intensity of the inclined jet depending on the location, resulting in uneven cleaning power.
  • the intervals at which the flow passages 15 and 16 are switched by the valve body 21 are made different so that the injection time is long.
  • valve body 21 is configured to be movable back and forth with respect to the inlets 17 and 18 of the respective flow passages 15 and 16, and the valve body 21 is configured to be separated from the surface A, foreign matter mixed in the cleaning water is caught. And can be driven to rotate.
  • the valve body 21 is moved back and forth in response to the start and stop of the operation of the cleaning pump 6, and the cleaning water supply to the plurality of flow paths 15 and 16 of the cleaning nozzle 7 is switched.
  • the valve body 21 may be moved back and forth by changing the rotation speed of the cleaning pump 6 between high rotation and low rotation.
  • separates from the surface A is set more than the clearance gap between the drainage filter 9 and the residual filter 10, and the foreign material which can flow in into the valve body 21 through the drainage filter 9 and the residual filter 10 Since a gap of a size larger than that can be formed between the surface A and the valve body 21, when the cleaning pump 6 is stopped, the foreign matter sandwiched therebetween is dropped and removed. It is possible to always provide a highly reliable switching means.
  • the engagement portion provided in the valve body 21 switches the flow path by engaging each flow path inlet provided in the nozzle portion. It does not have to be. For example, it is good also as a structure which switches a flow path by the engaging part provided in the valve body 21 and the engaging part provided in the nozzle part mutually engaging.
  • the dishwasher according to the present invention can surely perform the switching of the flow path by the valve body, and can improve the washing effect by eliminating the uneven washing of the tableware while realizing water saving. It can also be applied to washing machines other than tableware.

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  • Washing And Drying Of Tableware (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
PCT/JP2010/001263 2009-02-26 2010-02-25 食器洗い機 WO2010098097A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201080004423.0A CN102271569B (zh) 2009-02-26 2010-02-25 餐具清洗机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009043369A JP4947071B2 (ja) 2009-02-26 2009-02-26 食器洗い機
JP2009-043369 2009-02-26

Publications (1)

Publication Number Publication Date
WO2010098097A1 true WO2010098097A1 (ja) 2010-09-02

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JP2013009706A (ja) * 2011-06-28 2013-01-17 Harman Co Ltd 食器洗浄乾燥機

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KR101776629B1 (ko) * 2010-12-31 2017-09-08 엘지전자 주식회사 식기세척기
KR101769378B1 (ko) * 2011-05-12 2017-08-18 엘지전자 주식회사 식기세척기
KR101769377B1 (ko) * 2011-05-12 2017-08-18 엘지전자 주식회사 식기세척기
KR101943323B1 (ko) 2017-01-02 2019-01-29 엘지전자 주식회사 식기 세척기
CN110384457A (zh) * 2018-04-21 2019-10-29 青岛海尔洗衣机有限公司 洗鞋机

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JP2013009706A (ja) * 2011-06-28 2013-01-17 Harman Co Ltd 食器洗浄乾燥機

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JP2010194138A (ja) 2010-09-09
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TW201034612A (en) 2010-10-01
KR20110120901A (ko) 2011-11-04
CN102271569B (zh) 2013-09-25
CN102271569A (zh) 2011-12-07

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