KR101300919B1 - Dish washer - Google Patents

Dish washer Download PDF

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Publication number
KR101300919B1
KR101300919B1 KR1020110072416A KR20110072416A KR101300919B1 KR 101300919 B1 KR101300919 B1 KR 101300919B1 KR 1020110072416 A KR1020110072416 A KR 1020110072416A KR 20110072416 A KR20110072416 A KR 20110072416A KR 101300919 B1 KR101300919 B1 KR 101300919B1
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KR
South Korea
Prior art keywords
arm
gear
washing
arms
washing water
Prior art date
Application number
KR1020110072416A
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Korean (ko)
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KR20130011337A (en
Inventor
제병수
Original Assignee
엘지전자 주식회사
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 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020110072416A priority Critical patent/KR101300919B1/en
Priority to CN2011103928403A priority patent/CN102440745A/en
Priority to CN2011204924547U priority patent/CN202568166U/en
Publication of KR20130011337A publication Critical patent/KR20130011337A/en
Application granted granted Critical
Publication of KR101300919B1 publication Critical patent/KR101300919B1/en

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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

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  • Washing And Drying Of Tableware (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)

Abstract

This embodiment relates to a dishwasher. Dishwasher according to one aspect, the tub is formed washing tub; A sump provided at one side of the tub to supply washing water; And a washing arm supplied with the washing water from the sump, wherein the washing arms are connected in the vertical direction and include a plurality of arms capable of rotating at different speeds.

Description

Dishwasher {Dish washer}

The present disclosure relates to a dishwasher.

In general, a dishwasher is a device for washing dishes by spraying the washing water on the dishes with food or dirt.

1 is a cross-sectional view of a dishwasher according to the prior art.

Referring to FIG. 1, the dishwasher 10 according to the related art includes a tub 10 having a washing tank formed therein and a sump 20 connected to a lower side of the tub. The sump 20 is provided with a washing pump 22 for pumping the washing water.

In addition, the tub 10 is provided with a plurality of arms 31, 32, 33 for injecting the washing water into the dish. The plurality of arms 31, 32, 33 comprise a lower arm 31, an intermediate arm 32 and an upper arm 33.

The lower arm 31 or the upper arm 32 is formed in a symmetrical structure extending to both sides with respect to the central axis of rotation. According to the arm of this structure, the washing water may be evenly sprayed to the dishes placed in the rack, but since the washing water is not concentrated in a specific area of the tableware, the washing may not be performed completely in the case of dishes with a large amount of dirt. have.

An object of the present embodiment is to provide a dishwasher in which washing water can be intensively sprayed into some dishes placed in a rack.

Dishwasher according to one aspect, the tub is formed washing tub; A sump provided at one side of the tub to supply washing water; And a washing arm supplied with the washing water from the sump, wherein the washing arms include a plurality of arms connected in a vertical direction and capable of rotating at different speeds, and each center of rotation of each of the plurality of arms is angled. It is positioned to one side at a point bisecting the length of the arm, characterized in that each rotation center of the plurality of arms are concentric.

According to the proposed embodiment, as the washing arm is divided into a plurality of arms and rotated at different rotational speeds, the washing performance of the tableware is improved by the arm rotating at a low speed.

In addition, since a plurality of arms may overlap in the process of rotating, the washing water may be concentrated in the dish, and the washing performance of the dish may be improved.

1 is a cross-sectional view of the dishwasher according to the prior art
2 is a cross-sectional view of the dishwasher according to the first embodiment.
3 is a perspective view of a lower arm according to the first embodiment;
4 is an exploded perspective view of the lower arm according to the first embodiment;
5 is a view illustrating a structure of a lower arm according to a second embodiment.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of the dish washing machine according to the first embodiment.

Referring to FIG. 2, the dishwasher 100 according to the present embodiment includes a case 101 forming an exterior and a washing tank provided in the case 110 and forming a washing space for washing dishes. 110, a sump 120 provided at a lower side of the washing tank 110 to collect washing water for washing dishes, and a door 111 to open and close the washing tank 110.

In the inner space of the washing tank 110, a plurality of racks on which tableware is placed is provided. The plurality of racks include an upper rack 130 and a lower rack 140 positioned below the upper rack 130. In this embodiment, for example, two racks 130 and 140 are provided in the washing tank 11, for example, but the number of the rack in the present embodiment is not limited.

In addition, the washing tank 110 is provided with a plurality of washing arms receiving the washing water from the sump 120 and spraying the washing water to the dishes placed in the racks (130, 140).

The plurality of washing arms are connected to the upper side of the sump 120, the lower arm 200 for spraying the washing water to the lower rack, and located below the upper rack 130 to the upper rack 130 It may include an intermediate arm 150 for spraying the wash water, and an upper arm 160 positioned above the upper rack 130 to spray the wash water downward.

In the present embodiment, it is described that the three arms are provided in the washing tank, but in the present embodiment, the number of the arms is not limited. That is, in this embodiment, one or more arms may be provided inside the washing tank.

The sump 120 is provided with a washing pump 122 for pumping the washing water. The washing motor 124 is connected to the washing pump 122.

The sump 120 is connected to a wash water guide 140 for delivering wash water to the intermediate arm 150 and the upper arm 160. A single wash water flow path may be formed in the wash water guide 140, or two wash water flow paths may be partitioned. Alternatively, each of the plurality of wash water guides may deliver wash water to each of the intermediate arm 150 and the upper arm 160.

The wash water may be alternately supplied to each of the arms 150, 160, and 200, or the wash water may be simultaneously supplied to two or more arms.

3 is a perspective view of a lower arm according to the first embodiment, and FIG. 4 is an exploded perspective view of the lower arm according to the first embodiment.

3 and 4, the lower arm 200 according to the present embodiment includes a first arm 210, a second arm 250 connected to the first arm 210, and a second arm ( An arm holder 290 to which the 250 is connected may be included.

In detail, the first arm 210 is connected to the upper side of the second arm 250. That is, a plurality of arms are stacked up and down. The first arm 210 may be rotatably connected to the second arm 250. In the present embodiment, the first arm 210 and the second arm 250 may be rotated at different speeds.

The first arm 210 includes a first body 212 having a washing water flow path formed therein. One or more first nozzles 213 are formed in the first body 212 to discharge the washing water. In FIG. 4, for example, a plurality of first nozzles 213 are formed on the upper side of the first body 212.

An inlet 214 through which the washing water flows is formed below the first body 212. The inlet 214 is formed at a position biased to one side at a point bisecting the length of the first body 212. For example, the inlet 214 may be formed at a position adjacent to one end of the first body 212. The inlet 214 serves as a rotation axis of the first arm 210.

Therefore, in order to maintain the vertical balance when the first arm 210 is rotated, the first seating portion 220 is formed on the side of one end of the first body 212 for placing the balance member 222. Can be. The weight of the balance member 222 may vary depending on the length of the first body 212 or the amount of washing water that can flow into the first body 212.

A driving gear 216 is formed at the inlet 214. The drive gear 216 is formed along the circumferential direction of the inlet 214. The drive gear 216 serves to transfer the rotational force of the first arm 210 to the second arm 250.

The second arm 250 includes a second body 252 having a washing water flow path formed therein. One or more second nozzles 253 are formed in the second body 252 to discharge the washing water. In FIG. 4, for example, a plurality of second nozzles 253 are formed on the upper side of the second body 252.

An upper part of the second body 252 is formed with a discharge part 254 for discharging the washing water introduced into the second arm 250, and an inlet part 256 through which the washing water flows. The inlet 214 of the first arm 210 is inserted into the outlet 254.

The inlet portion 256 of the second body 252 is formed at a position biased to one side at a point bisecting the length of the second body 252. For example, the inlet part 256 may be formed at a position adjacent to one end of the second body 252. The inlet 256 serves as a rotation axis of the second arm 250.

Therefore, in order to maintain the vertical balance when the second arm 250 is rotated, a second seating portion 270 is formed on the side of one end of the second body 252 for placing the balance member 272. Can be. The weight of the balance member 272 may vary depending on the length of the second body 252 or the amount of wash water that may flow into the second body 252.

The center of rotation of the first arm 210 and the center of rotation of the second arm 250 coincide with each other.

The second body 252 is provided with a power transmission unit connected to the drive gear 216. The power transmission unit includes a first gear 282 that meshes with the drive gear 216, and a second gear 284 that is coaxially connected to the first gear 282. That is, the second gear 284 is connected to the rotation shaft 283 of the first gear 282.

The second body 252 is provided with a support 280 for supporting the rotation shaft 283. In this case, the support 280 may be integrally formed with the second body 252 or may be separately formed to be coupled to the second body 252. The second gear 284 is spaced apart from the first gear 282 in the vertical direction. Since the support part 280 is fixed to the second body 252, the first gear 282 and the second gear 284 rotate and at the same time the inlet part 256 of the second body 252 is rotated. ) Rotates with the second body 252 using the center of rotation.

The arm holder 290 may be coupled to the sump 120 or may be integrally formed with the sump 120. The arm holder 290 includes a connection portion 292 in which a washing water flow path is formed. The inlet part 256 of the second arm 250 is inserted into the connection part 292. The connecting portion 292 has a fixed gear 294 to which the second gear 284 is engaged. The fixed gear 294 is formed along the circumference of the connecting portion 292.

The flow and rotation of the wash water in the lower arm will be described.

The washing water flows to the lower arm 200 by the pumping force of the washing pump 122 of the sump 120. In detail, the washing water pumped by the washing pump 122 passes through the arm holder 290 and flows into the second arm 250 through the inlet 256 of the second arm 250. Some of the washing water introduced into the second arm 250 is introduced into the first arm 210 through the inlet 216 of the first arm 210. The washing water introduced into the first arm 210 is sprayed through the plurality of first nozzles 213.

At this time, in the process of washing water is sprayed through the plurality of first nozzles 213, the first arm 210 is rotated in one direction. In this case, the rotation direction of the first arm 210 is determined by the formation direction of the plurality of first nozzles 213.

In the following description, the first arm 210 rotates in a clockwise direction when viewed from above in FIG. 4. When the first arm 210 is rotated in the clockwise direction, the drive gear 216 is rotated in the clockwise direction. Then, the first gear 282 meshed with the drive gear 216 rotates counterclockwise.

When the first gear 282 is rotated counterclockwise, the second gear 284 coaxially connected with the first gear 282 is rotated counterclockwise. Since the second gear 284 is engaged with the fixed gear 294 formed in the arm holder 290, when the second gear 284 is rotated in a counterclockwise direction, the second arm 250 is rotated. It rotates counterclockwise by making the inlet part 256 into a rotating shaft.

According to the present embodiment, when the first arm 210 is rotated in the clockwise direction, the second arm 250 is rotated in the counterclockwise direction. That is, the first arm 210 and the second arm 250 are rotated in the opposite direction.

Therefore, the first arm 210 and the second arm 250 may overlap in the vertical direction while the first arm 210 and the second arm 250 are rotated.

In this case, by varying the number of gears of the first gear 282 and the second gear 284, the rotation speed of the first arm 210 and the second arm 250 can be different.

For example, when the number of gear teeth of the second gear 284 is less than the number of gear teeth of the first gear 282, the rotational speed of the second arm 250 is the rotation of the first arm 210. It will be slower than speed.

When the second arm 250 sprays the washing water to the dish while rotating at a low speed, the amount of the washing water sprayed onto the dishware is increased when the second arm 250 is rotated 360 degrees (when rotating the wheel). The washing performance of can be improved.

In addition, the angle formed by the first arm 210 and the second arm 250 is changed while the first arm 210 and the second arm 250 are rotated. In detail, the angle formed by the first arm 210 and the second arm 250 is increased while the first arm 210 and the second arm 250 overlap each other. After the angle between the first arm 210 and the second arm 250 becomes 180 degrees, the angle between the first arm 210 and the second arm 250 is reduced.

In the present embodiment, a section in which the angle formed by the first arm 210 and the second arm 250 decreases may be referred to as an intensive washing section. In this case, since the washing water may be concentrated to a specific area of the dish rack, the washing of the dishes placed in the corresponding area may be effectively performed.

In addition, in the present embodiment, as the rotational speeds of the first arm 210 and the second arm 250 are varied, the first arm 210 and the first arm 210 are rotated 360 degrees. The number of overlap of the second arm 250 may vary. In this embodiment, for example, the number of times that the first arm 210 and the second arm 250 overlap with each other when the second arm 250 is rotated 360 degrees may be set to a plurality of circuits.

In addition, in this embodiment, as the rotational speeds of the first arm 210 and the second arm 250 are varied, the position where the first arm 210 and the second arm 250 overlap with each other is also shown. Can be variable. In this case, a specific area of the lower rack may be divided into a concentrated washing area, and when the washing is started after placing the dishes in the concentrated washing area, the first arm and the second arm may overlap at a position adjacent to the concentrated washing area. Can be. At this time, the angle between the first arm and the second angle may be increased or decreased below the concentrated washing area.

5 is a view showing the structure of a lower arm according to the second embodiment.

This embodiment is the same as the first embodiment in other parts, except that there is a difference in the rotational direction of the lower arm. Therefore, only the characteristic parts of the present embodiment will be described below.

Referring to FIG. 5, the lower arm 300 of the present embodiment includes a first arm 310, a second arm 350, and an arm holder 390.

The first arm 310 includes a drive gear 316. The second arm 350 may include a first gear 382 engaged with the driving gear, a second gear 384 coaxially connected with the first gear 382, and a second gear 384. An interlocking third gear 386. The second gear and the third gear 386 are supported by a support 380 connected to the second arm 350.

The arm holder 390 includes a fixed gear 394 that meshes with the third gear 386.

By the above configuration, when the wash water flows into the lower arm 300, the first arm 310 is rotated in a clockwise direction, for example. When the first arm 310 is rotated in the clockwise direction, the drive gear 316 is rotated in the clockwise direction. Then, the first gear 382 engaged with the drive gear 316 rotates in the counterclockwise direction.

When the first gear 382 rotates counterclockwise, the second gear 384 coaxially connected with the first gear 382 rotates counterclockwise. When the second gear 383 rotates counterclockwise, the third gear 388 meshed with the second gear 384 rotates clockwise. Since the third gear 388 is engaged with the fixed gear 394 formed in the arm holder 390, when the third gear 388 is rotated clockwise, the second arm 350 is clockwise. Will rotate.

According to this embodiment, when the first arm 310 is rotated in the clockwise direction, the second arm 350 is rotated in the clockwise direction. That is, the first arm 310 and the second arm 350 rotate in the same direction. However, the rotation speed of the first arm 310 and the second arm 350 is different.

Therefore, the first arm 310 and the second arm 350 may overlap in the vertical direction while the first arm 310 and the second arm 350 are rotated.

In the above embodiment has been described that the lower arm is divided into a plurality of arms as an example, the middle arm or the upper arm is divided into a plurality of arms, it is also possible to rotate at different speeds.

120: sump 150: intermediate arm
160: upper arm 200: lower arm

Claims (12)

A tub in which a washing tank is formed;
A sump provided at one side of the tub to supply washing water; And
A washing arm supplied with washing water from the sump,
The washing arm is connected in the vertical direction, includes a plurality of arms that can rotate at different speeds,
The center of rotation of each of the plurality of arms is positioned to one side at a point that bisects the length of each arm,
And each center of rotation of the plurality of arms is concentric. delete The method of claim 1,
The wash arm further comprises an arm holder,
The plurality of arms includes a first arm and a second arm connected to the lower side of the first arm,
And the second arm is connected to the arm holder. The method of claim 3, wherein
The first arm includes a drive gear,
The second arm includes a power transmission unit for transmitting the power of the drive gear,
The arm holder is a dishwasher including a fixed gear connected to the power transmission unit. 5. The method of claim 4,
The power transmission unit, the first gear meshing with the drive gear,
And a second gear connected coaxially with the first gear and engaged with the fixed gear. The method of claim 5, wherein
The second arm includes a support for supporting the rotation axis of the first gear and the second gear,
And the support, the first gear and the second gear rotate together with the second arm. 5. The method of claim 4,
And the first arm and the second arm rotate in opposite directions. delete 5. The method of claim 4,
The power transmission unit and the first gear meshing with the drive gear,
A second gear coaxially connected with the first gear;
And a third gear engaged with the second gear and the fixed gear. The method of claim 3, wherein
Some of the washing water introduced into the second arm is supplied to the first arm from the second arm. The method of claim 3, wherein
The first arm and the second arm of the first arm and the second arm is rotated 360 degrees, when the first arm and the second arm is overlapped a plurality of times in the vertical direction. A tub in which a washing tank is formed;
A sump provided at one side of the tub to supply washing water; And
A washing arm supplied with washing water from the sump,
The washing arm is connected in the vertical direction, includes a plurality of arms that can rotate at different speeds,
The center of rotation of each of the plurality of arms is positioned to be shifted to one side at a point bisecting the length of each arm,
Each of the plurality of arms is provided with a balance member for maintaining a balance when rotating.
KR1020110072416A 2011-07-21 2011-07-21 Dish washer KR101300919B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020110072416A KR101300919B1 (en) 2011-07-21 2011-07-21 Dish washer
CN2011103928403A CN102440745A (en) 2011-07-21 2011-12-01 Dish washer
CN2011204924547U CN202568166U (en) 2011-07-21 2011-12-01 Bowl washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110072416A KR101300919B1 (en) 2011-07-21 2011-07-21 Dish washer

Publications (2)

Publication Number Publication Date
KR20130011337A KR20130011337A (en) 2013-01-30
KR101300919B1 true KR101300919B1 (en) 2013-08-27

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KR1020110072416A KR101300919B1 (en) 2011-07-21 2011-07-21 Dish washer

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CN (2) CN102440745A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210069349A (en) * 2019-12-03 2021-06-11 에스케이매직 주식회사 Rotor assembly for dishwasher

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016138771A1 (en) * 2015-03-02 2016-09-09 佛山市顺德区美的洗涤电器制造有限公司 Spray arm assembly for dishwasher, and dishwasher
CN105662306B (en) * 2016-02-18 2018-05-01 佛山市顺德区美的洗涤电器制造有限公司 For dish-washing machine gushing arm device and there is its dish-washing machine
CN105769097B (en) * 2016-04-29 2019-04-02 佛山市顺德区美的洗涤电器制造有限公司 For the gushing arm component of dish-washing machine and with its dish-washing machine
CN105725947B (en) * 2016-04-29 2019-04-02 佛山市顺德区美的洗涤电器制造有限公司 For the gushing arm component of dish-washing machine and with its dish-washing machine
CN105942951B (en) * 2016-04-29 2019-04-02 佛山市顺德区美的洗涤电器制造有限公司 For the gushing arm component of dish-washing machine and with its dish-washing machine
KR102528669B1 (en) * 2016-06-10 2023-05-04 엘지전자 주식회사 Dish Washer
CN109620089B (en) * 2017-10-09 2021-12-07 青岛海尔洗碗机有限公司 Sprayer of dish-washing machine and dish-washing machine

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS6362074U (en) * 1986-10-13 1988-04-25
JPH05130964A (en) * 1991-11-14 1993-05-28 Matsushita Electric Ind Co Ltd Tableware washing machine
JPH0631646U (en) * 1992-09-25 1994-04-26 象印マホービン株式会社 Dishwasher

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Publication number Priority date Publication date Assignee Title
SE524021C2 (en) * 2002-08-30 2004-06-15 Asko Cylinda Ab Dishwasher with intensive zone
CN1785113A (en) * 2004-12-10 2006-06-14 李崇明 Dish-washing machine
US8578954B2 (en) * 2009-12-21 2013-11-12 Whirlpool Corporation Spray arm assembly for a dishwasher

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6362074U (en) * 1986-10-13 1988-04-25
JPH05130964A (en) * 1991-11-14 1993-05-28 Matsushita Electric Ind Co Ltd Tableware washing machine
JPH0631646U (en) * 1992-09-25 1994-04-26 象印マホービン株式会社 Dishwasher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210069349A (en) * 2019-12-03 2021-06-11 에스케이매직 주식회사 Rotor assembly for dishwasher
KR102311407B1 (en) * 2019-12-03 2021-10-12 에스케이매직 주식회사 Rotor assembly for dishwasher

Also Published As

Publication number Publication date
CN202568166U (en) 2012-12-05
CN102440745A (en) 2012-05-09
KR20130011337A (en) 2013-01-30

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