WO2018026217A1

WO2018026217A1 - Dish washer

Info

Publication number: WO2018026217A1
Application number: PCT/KR2017/008410
Authority: WO
Inventors: 이상익
Original assignee: 엘지전자 주식회사
Priority date: 2016-08-04
Filing date: 2017-08-03
Publication date: 2018-02-08
Also published as: KR102595650B1; KR20180015930A

Abstract

The dish washer according to the present invention comprises: a cabinet; a tub installed inside the cabinet; a spray module for spraying wash water toward dishes disposed inside the tub; a sump for supplying the wash water to the spray module; and a water jacket disposed between the tub and the cabinet, for supplying the wash water to the sump, wherein the water jacket comprises: a storage unit in which the wash water is stored; a water supply channel which is formed so as to supply the wash water to the storage unit and which has an anti-siphon gap open downwards; and a guide unit having a connection channel for guiding the wash water leaking through the anti-siphon gap to the storage unit.

Description

dish washer

The present invention relates to a dishwasher, and more particularly, to a water jacket of a dishwasher including a water jacket provided with a guide unit for preventing leakage.

In general, the dishwasher is a home appliance for cleaning the food residue on the surface of the dish by the high-pressure washing water sprayed from the spray nozzle.

The conventional dishwasher is composed of a tub having a washing tank formed therein, and a sump mounted on the bottom of the tub to store washing water.

The water jacket includes a water jacket for supplying the washing water to the sump, and the water jacket includes a storage unit for storing the washing water and a supply passage for supplying water to the storage unit.

In the supply flow path, when a reverse pressure is generated in the water supply pipe, a siphon prevention gap is formed to prevent the siphon phenomenon from which the washing water flows out through the water supply flow path.

However, a part of the water supplied through the water supply flow passage has a problem that escapes to the siphon prevention gap.

The dishwasher disclosed in Korean Patent Laid-Open Publication No. 10-2014-0101633 forms a tub hole connected to a tub in a water jacket to discharge water leaked into the siphon prevention gap to the tub.

However, the water leaked into the siphon prevention gap in the water supply process is not stored in the reservoir of the water jacket even if discharged to the tub, there is a problem that water loss occurs when a large amount of water leaks.

The problem to be solved by the present invention is to provide a dishwasher that minimizes the water loss caused by leakage of the siphon prevention gap formed in the water supply passage inside the water jacket.

The problem to be solved by the present invention is to provide a dishwasher that can store the water leaked into the siphon prevention gap to the storage unit by utilizing the structure of the existing water jacket.

The problem to be solved by the present invention provides a dishwasher that collects the water leaked into the siphon prevention gap to the maximum storage.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the dishwasher according to the present invention; A tub installed inside the cabinet; An injection module for spraying washing water toward the dishes disposed in the tub; A sump for supplying washing water to the injection module; And a water jacket disposed between the tub and the cabinet and supplying the washing water to the sump, wherein the water jacket includes a storage unit for storing the washing water; A water supply passage for supplying the washing water to the storage unit and having a siphon prevention gap formed in an upper portion thereof and opened in a lower direction; And a guide portion formed with a connecting flow path for guiding the washing water leaked through the siphon prevention gap to the storage unit, it is possible to guide the water leaked into the siphon prevention gap to the storage unit.

Guide portion of the dishwasher according to the present invention, the guide plate disposed under the siphon prevention gap; Leakage prevention wall that is bent in an upward direction from one end of the guide plate; And a connecting flow path for guiding the wash water leaked into the guide plate to the storage unit, and the wash water leaked into the siphon prevention gap is not leaked to the maximum, and may be introduced into the storage unit.

The connection flow path intersects the water supply flow passage so as not to overlap each other, and stably sends water leaking inside the water jacket to the storage unit.

The connection flow path is formed on the rear surface of the water supply flow path.

And a guide cover corresponding to the frame and forming the other side of the external shape, wherein the connection flow path is formed along the inner surface of the frame or the inner surface of the guide cover. , By combining the frame and the guide cover, it is possible to form a water jacket to prevent leakage into the siphon prevention gap.

The frame and the guide cover may be combined in a fusion method.

The guide part may be disposed below the siphon prevention gap and have a 'L' shape to minimize the leakage of water leaked into the siphon prevention gap to the outside.

Dishwasher according to another embodiment of the present invention, the cabinet; A tub installed inside the cabinet; And a water jacket disposed between the tub and the cabinet to supply washing water, wherein the water jacket includes a frame having one side of an outer shape and a tub hole communicating the inside of the water jacket with the tub; A guide cover corresponding to the frame and forming the other side of the outer shape; A storage unit for storing the washing water in which the frame and the guide cover are coupled; A water supply passage for supplying washing water to the storage unit and having a siphon prevention gap disposed in an upper side of the tub hole and opening downward; And a guide part disposed between the siphon preventing gap and the tub hole to guide the washing water leaked through the siphon preventing gap to the storage unit, to guide the water leaking into the siphon preventing gap to the storage unit of the water jacket. Can be.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the air jet generator of the dishwasher of the present invention has one or more of the following effects.

First, since the water jacket of the dishwasher according to the present embodiment moves water leaked into the siphon prevention gap formed in the water supply passage to the storage unit, there is an advantage of minimizing the water loss generated in the siphon prevention gap.

Second, the water jacket of the dishwasher according to the present embodiment does not overlap the water supply passage, but forms an intersecting connection flow path to partially change the structure of the existing water jacket to send the leaked water to the storage, thereby adding a separate space. Or, without providing a separate device, there is an advantage of minimizing the water loss leaked into the siphon prevention gap.

Third, the dishwasher according to the present embodiment further includes a guide plate and a leakage preventing wall that prevents the wash water leaked by the guide plate from flowing into the tub hole. There is an advantage to collect.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic front cross-sectional view of a dish washer according to one embodiment of the present invention.

2 is a view showing a state in which a water jacket is disposed in the dishwasher according to an embodiment of the present invention.

3 is a view for explaining a water jacket including a guide unit according to an embodiment of the present invention.

Figure 4 (a) is a view showing a frame formed with a guide for forming a guide portion and a connection flow path according to an embodiment of the present invention.

FIG. 4B illustrates a guide cover corresponding to the frame of FIG. 4A.

Figure 5 (a) is a view showing a guide cover formed with a guide forming a guide portion and a connection flow path according to another embodiment of the present invention.

6 is a cross-sectional view taken along line AA ′ of FIG. 3 according to another embodiment of the present invention.

FIG. 7B is a diagram illustrating a frame corresponding to the guide cover of FIG. 7A.

8 is a cross-sectional view taken along line AA ′ of FIG. 3 according to another embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, an air jet generator of a dish washing machine according to embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, the dishwasher 10 according to the present embodiment includes a cabinet assembly 12 forming an external appearance, a rack 22 disposed inside the cabinet assembly 12, and a table 22 mounted thereon, and the cabinet assembly. (12) an injection module (24) disposed inside and spraying the washing water toward the dishes, a sump (20) disposed inside the cabinet assembly (12) and supplying the washing water to the injection module (24), and a sump ( 20) or a water supply module 38 for supplying water to the injection module 24, a drain module 32 connected to the sump 20 to discharge the washing water to the outside, and installed in the sump 20 to filter the wash water. It includes a filter assembly (30). In addition, the dishwasher 10 may further include a heater module 42 installed on the sump 20 to heat the washing water.

The cabinet assembly 12 forms an outer shape of the dishwasher. The cabinet assembly 12 is installed in the cabinet 14 and the door 16 coupled to the cabinet 14 to open and close the inside of the cabinet 14 and the cabinet 14. Or a tub 18 to which steam is applied.

The rack 22 is installed inside the tub 18, and tableware is mounted on the rack 22.

The injection module 24 is for injecting the washing water toward the tableware, and includes an injection nozzle 26 and a nozzle passage 28 for supplying the washing water to the injection nozzle 26.

A plurality of injection nozzles 26 may be disposed, and a plurality of nozzle passages 28 may also be disposed corresponding to the injection nozzles 26, and nozzle passage switching units for selectively supplying washing water to the nozzle passages 28 ( 44 is disposed.

In the present embodiment, the injection module 24 is configured to spray the washing water received from the sump 20 in which the washing water is stored. Unlike the present embodiment, the injection module 24 may be configured to receive water directly through the water supply module 38. Do.

The water supply module 38 is configured to receive water from the outside and to supply the sump 20, and may be configured to supply water to the sump 20 through the filter assembly 30. In the dishwasher according to the present embodiment, water stored in the storage unit 160 (see FIG. 3) of the water jacket 100 (see FIG. 2) described below is supplied to the sump 20. The water jacket is disposed between the tub and the cabinet and will be described in detail below.

The drain module 32 is for discharging the wash water stored in the sump 20 to the outside, and is composed of a drain channel 34 and a drain pump 36.

The filter assembly 30 is for filtering foreign substances such as food waste contained in the wash water, and is disposed on the flow path of the wash water flowing from the tub 18 to the sump 20.

To this end, the sump 20 may be formed with a filter mounting portion for installing the filter assembly 30, a filter flow path for connecting the filter mounting portion and the inside of the sump 20 may be disposed.

The sump 20 further includes a sump storage unit configured to store the washing water therein, and further includes a pump 40 for pumping the stored washing water into the injection module 24.

The pump 40 pumps the washing water stored in the sump 20 to the injection module 24. The pump 40 is connected to the injection module 24 through the pump passage.

The sump 20 is connected to a steam flow path and a steam nozzle for ejecting steam generated by the heater module 42 into the tub 18, and a valve (not shown) for controlling the steam may be installed in the steam flow path. , To control the steam injected into the tub 18 through the valve, it is possible to adjust the amount of steam in some cases.

Here, the steam generated in the sump 20 may be supplied into the tub 18 through the filter flow path and the filter mounting portion instead of the steam nozzle. The sump 20 may be bidirectionally connected to the tub 18 through the steam flow passage and the filter flow passage.

2 is a view illustrating a state in which a water jacket according to an embodiment of the present invention is disposed in a dishwasher, and FIG. 3 is a view for explaining a water jacket including a guide unit according to an embodiment of the present invention. . 4 is a view illustrating a frame and a guide cover in which a guide part and a connection flow path are formed according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line AA ′ of FIG. 3 according to an embodiment of the present invention. 6 is a view illustrating a frame and a guide cover in which a guide part and a connection channel are formed according to another embodiment of the present invention, and FIG. 7 is a cross-sectional view taken along line AA ′ of FIG. 3 according to another embodiment of the present invention.

Hereinafter, the configuration of the water jacket 100 and the guide part 200 formed in the water jacket will be described with reference to FIGS. 2 to 7.

The dishwasher 10 according to the present embodiment includes a water jacket 100 for supplying washing water to the sump 20. The water jacket 100 may be disposed between the tub 18 and the cabinet 14. The water jacket 100 may be formed by combining the frame 100a and the guide cover 100b. The frame 100a and the guide cover 100b form both side surfaces of the water jacket 100, and form a water supply passage 170, a storage 160, and a guide 200 therein by combining the water jacket 100.

The frame 100a is disposed to face one side of the tub 18, and a tub hole 140 is formed to communicate the siphon prevention gap 130 formed in the water supply passage 170 with the tub 18. The guide cover 100b is disposed to face the cabinet 14. The guide cover 100b and the frame 100a may be combined in a fusion method.

The water jacket 100 according to the present embodiment includes a storage unit 160 in which washing water is stored; A water supply passage 170 for supplying the washing water to the storage unit and having a siphon prevention gap 130 disposed at an upper side thereof and opening in a downward direction; And a guide part 200 for guiding the washing water leaked through the siphon prevention gap 130 to the storage 160.

In addition, the water jacket 100 is formed on the bottom and the water supply hose connector 110, the tap water flowing from the raw water pipe is introduced, and a water flow rate detection flow meter for detecting the amount of raw water coming into the water hose connector 110 ( 120, and a storage unit 160 for storing the regeneration water introduced by the flowmeter 120, is installed on the water supply flow path 170 formed in the water jacket 100, the reverse pressure in the water supply pipe In this case, a siphon prevention gap 130 is formed to prevent a siphon phenomenon in which the washing water flows out through the water supply passage 170.

Water introduced to wash dishes in the dishwasher 10, water used for dishwashing, and water flowing into the dishwasher to be discharged after washing are water for washing and are referred to as “washing water” below.

The water jacket 100 according to the present embodiment includes a guide part 200 under the siphon prevention gap 130. The gobe 200 sends the washing water leaked into the siphon prevention gap 130 to the storage 160 through the connection flow paths (230a, 230b).

In addition, the water jacket 100 is in communication with the tub 18 to which the water jacket 100 is attached, the air is introduced, the tub hole for allowing a portion of the water leaked from the water supply flow path 170 is introduced into the tub ( 140 is formed. The tub hole 140 is formed in the frame 100a disposed to be in contact with the tub 18, and the tub 18 is also formed at a position corresponding to the tub hole 140.

The dishwasher 10 according to the present embodiment may further include a softening device (not shown) for absorbing and removing heavy metals and metallic ions contained in the wash water or softening the water by lowering the hardness of the wash water. The water jacket 100 according to the present embodiment has a first soft water connecting device 112 which sends washing water introduced through a water supply passage to a softening device (not shown), and a second soft water flowing into the storage unit. Device connector 114.

In addition, the water jacket 100 according to the present embodiment further includes a supply pipe connector 116 for sending the washing water stored in the reservoir to the sump (20). The upper portion of the supply pipe connector 116 may include a solenoid valve 118 that controls the washing water discharged to the supply pipe connector 116 or opens and closes the supply pipe connector 116.

In addition, the sump drain connector 154 connected to the sump 20 and the water moved to the sump drain connector 154 in order to allow the washed water to be discharged to the outside by the drain pump 36 in the water jacket It includes a drain hose connector 152 for discharging to the outside along the formed drain passage.

The guide part 200 according to the present embodiment is disposed below the siphon prevention gap 130. The guide part 200 sends the washing water leaked into the siphon prevention gap 130 to the storage part. The guide portion 200 has a 'L' shape at the lower side of the siphon prevention gap 130.

The guide part 200 may include: a guide plate 210 disposed below the siphon prevention gap; Leakage prevention wall 220 is bent in an upward direction from one end of the guide plate 210; And

connection flow paths

230a and 230b for guiding the washing water leaked to the guide plate 210 to the storage unit 160.

The guide plate 210 is disposed below the siphon prevention gap 130. Therefore, the water leaked into the siphon prevention gap 130 is dropped to the guide plate 210. The leakage preventing wall 220 is bent and extended upward from one side of the guide plate 210 to prevent the water falling into the siphon prevention gap 130 into the tub hole 140.

The guide plate 210 is connected to the

connection flow paths

230a and 230b for sending water to the storage 160. The

connection flow paths

230a and 230b are disposed in the water jacket 100 and connect the guide part 200 and the storage part 160. The connection flow path 230 is formed on the rear surface of the water supply flow path 170, so that the connection flow path 230 does not overlap the water supply flow path 170.

5 to 6, the connection flow path 230a according to an embodiment of the present invention is formed along the inner surface of the frame 100a. The connection flow path 230a is formed on the inner surface of the frame 100a.

The water supply passage 170 intersects with the connection passage 230a but does not overlap the connection passage 230a. In the portion where the connection flow path 230a is formed, the cross-sectional area of the flow path of the water supply flow path 170 is reduced by the cross-sectional area of the connection flow path 230a.

The frame 100a includes

guides

210a and 220a for forming the guide plate 210 and the leakage preventing wall 220 of the guide part 200, and the position corresponding to the frame 100a also in the guide cover 100b. And guides 210b and 220b forming the guide plate 210 and the leakage preventing wall 220.

7 to 8, the connection flow path 230b according to another embodiment of the present invention is formed along the inner surface of the guide cover 100b. The guide cover 100b has a connection flow path 230b formed at an inner side thereof.

The water supply passage 170 crosses the connection passage 230b but does not overlap with the connection passage 230b. In the portion where the connection flow path 230b is formed, the flow path cross section of the water supply flow path 170 is reduced by the size of the flow path cross section of the connection flow path 230b.

Hereinafter, the function of the water jacket 100 including the guide unit 200 will be described.

First, the washing water obtained through the water supply hose connector 110 is moved along the water supply passage 170 formed in the water jacket. The washing water introduced into the water supply passage 170 is introduced into the water softener (not shown) through the siphon prevention gap 130 formed at the upper portion thereof and through the first water softener connector 112 disposed at the bottom thereof.

Some of the washing water supplied to the water supply passage 170 leaks into the siphon prevention gap 130. Falling to the leaked wash water guide portion 200, it does not flow into the tub hole 140 by the leakage preventing wall 220 of the guide portion 200, through the connection flow path 230 along the guide plate 210 It flows into the storage unit 160.

The washing water introduced into the water softener is filtered through an ion exchange resin filter formed in the water softener to filter out impurities contained in the raw water, thereby softening the washing water.

The wash water softened through the softening device is stored in the storage 160 of the water jacket 100 through the second softening device connector 114. The wash water stored in the reservoir flows into the sump 20 through the feed pipe connection 116. The supply pipe connector 116 supplies the washing water to the sump 20 when the solenoid valve 118 is opened.

Under the siphon prevention gap 130, a tub hole 140 is formed in the water jacket 100 to be opened in the tub direction to allow the outside and air to flow. In addition, when the air flowing through the tub hole 140 communicates with the siphon prevention gap 130 formed on the upper water supply flow path of the water jacket, when the reverse pressure is generated in the water supply pipe, the water supply flow path 170 is opened. This prevents the siphon phenomenon that the wash water is drained.

In addition, the washed dirty water flows through the sump drain connector 154 along the drain flow path, and is discharged to the outside of the dishwasher along a drain hose (not shown) connected to the drain hose connector 152.

Although the above has been illustrated and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, but in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

[Description of the code]

10: dishwasher 18: tub

20: sump 40: pump

100: water jacket 110: water hose connection

140: siphon prevention gap 170: water supply passage

200: guide portion 210: guide plate

220:

leak prevention wall

230a, 230b: connection flow path

Claims

cabinet;

A tub installed inside the cabinet;

An injection module for spraying washing water toward the dishes disposed in the tub;

A sump for supplying washing water to the injection module; And

A water jacket disposed between the tub and the cabinet and supplying the washing water to the sump;

The water jacket,

A storage unit for storing the washing water;

A water supply flow path formed to supply the washing water to the storage part and having a siphon prevention gap open in a downward direction; And

And a guide part having a connecting flow path for guiding the washing water leaked through the siphon prevention gap to the storage part.
The method of claim 1,

The guide unit,

A guide plate disposed below the siphon prevention gap;

Leakage prevention wall that is bent in an upward direction from one end of the guide plate; And

A dishwasher comprising a connection flow passage for guiding the wash water leaked by the guide plate to the storage unit.
The method of claim 1,

The connection channel is a dish washer that does not overlap each other with the water supply channel.
The method of claim 1,

The water flow passage is formed on the back surface of the water supply passage.
The method of claim 1,

A frame forming one side of the appearance,

And further comprising a guide cover corresponding to the frame, forming the other side of the appearance,

The connecting channel is formed in the inner surface of the frame or the inner side of the guide cover dishwasher.
The method of claim 5, wherein

The frame and the guide cover is a dishwasher coupled in a fusion method.
The method of claim 1,

The guide unit is disposed under the siphon preventing gap, and a dishwasher having an 'L' shape.
The method of claim 1,

Further comprising a softening device for softening the wash water supplied to the storage unit,

The water jacket,

A first water softener connecting portion connecting the water supply passage with the water softener;

The dishwasher further comprises a second water softener connector for connecting the water softener and the storage.
cabinet;

A tub installed inside the cabinet; And

A water jacket disposed between the tub and the cabinet to supply washing water;

The water jacket,

A frame having a tub hole forming one side of an outer shape and communicating the inside of the water jacket with the tub;

A guide cover corresponding to the frame and forming the other side of the outer shape;

A storage unit for storing the washing water in which the frame and the guide cover are coupled;

A water supply passage for supplying washing water to the storage unit and having a siphon prevention gap disposed in an upper side of the tub hole and opening downward; And

And a guide unit disposed between the siphon preventing gap and the tub hole to guide the washing water leaked through the siphon preventing gap to the storage unit.