US20090211614A1 - Dish Washer - Google Patents
Dish Washer Download PDFInfo
- Publication number
- US20090211614A1 US20090211614A1 US11/997,271 US99727106A US2009211614A1 US 20090211614 A1 US20090211614 A1 US 20090211614A1 US 99727106 A US99727106 A US 99727106A US 2009211614 A1 US2009211614 A1 US 2009211614A1
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- United States
- Prior art keywords
- dish washer
- base
- sump
- tub
- sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Abandoned
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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
- A47L15/42—Details
- A47L15/421—Safety arrangements for preventing water damage
Definitions
- the present invention relates to a dish washer, and more particularly, to an improved base structure of a dish washer.
- a dish washer is to remove food or dirt remaining on the dishes through chemical decomposition and mechanical control of water pressure. Since the dish washer serves to perform various functions such as rinsing, sterilizing, and drying, in addition to a washing function, its demand from the moderns in busy daily life is on an increasing trend.
- a related art dish washer will be described with reference to FIG. 1 .
- a related art dish washer 1 washes the dishes by spraying washing water to the dishes.
- the dish washer 1 includes a tub 3 provided with a space for washing the dishes, and a base 10 disposed below the tub 3 and provided with various parts for supplying washing water of high pressure to the tub 3 .
- a door 7 that can be opened and closed is provided on a front surface of the tub 3 .
- An upper rack 12 and a lower rack 14 are provided inside the tub 3 , wherein the dishes are arranged in the upper and lower racks 12 and 14 .
- An upper spray arm 32 and a lower spray arm 34 are respectively provided below the upper rack 12 and the lower rack 14 to spray the washing water.
- a heater 15 is provided at one side inside the tub 3 to form steam by heating the water remaining in the tub 3 during a drying stroke after a washing stroke is finished.
- a sump 9 is provided in the base 10 to receive the washing water, and a washing pump is provided in the sump 9 .
- the washing pump serves to pump the washing water to supply the washing water to the upper spray arm 32 and the lower spray arm 34 .
- the sump 9 , the upper spray arm 32 and the lower spray arm 34 are connected with one another by an upper connection pipe 322 and a lower connection pipe 324 .
- the washing pump generally includes a motor 13 generating a driving force, and an impeller (not shown) connected with the motor 13 .
- the base 10 is connected with a lower portion of the tub 3 .
- the sump 9 connected with the motor 13 is then connected with the lower portion of the tub 3 through a through hole 10 a formed in the base 10 .
- the washing water in the sump 9 is pumped by the washing pump and then supplied to the upper spray arm 32 and/or the lower spray arm 34 . Accordingly, the washing water is sprayed from the upper spray arm 32 and the lower spray arm 34 to the dishes arranged on the upper rack 12 and/or the lower rack 14 so as to wash the dishes.
- the washing water may separately be supplied to the upper spray arm 32 and the lower spray arm 34 . Alternatively, the washing water may simultaneously be supplied to the upper spray arm 32 and the lower spray arm 34 .
- the washing water sprayed to the dishes is again collected in the sump 9 through a collection hole (not shown) connected with the sump 9 .
- the washing water since the washing water includes contaminant water generated by washing of the dishes, it can be filtered through a predetermined filtering means.
- the sump 9 is fixably inserted into the through hole 10 a formed in the base 10 .
- problems occur in that a user may feel inconvenience when turning the tub 3 upside down and fixing the sump 9 to the tub 3 through the narrow through hole 10 a and that much working time is required.
- the sump 9 fixed to the through hole 10 a of the base 10 may easily be detached from the lower portion of the tub 3 due to load when external impact is applied thereto. For this reason, a problem occurs in that the sump 9 may be damaged.
- the present invention is directed to a dish washer that substantially obviates one or more problems due to limitations and disadvantages of the related art.
- An object of the present invention is to provide a dish washer, in which assembly of the dish washer is improved, and an error operation and trouble of a driver due to water leaked in a base can be avoided.
- a dish washer according to the present invention includes a tub provided with a space for washing the dishes and a communication hole formed on the bottom, a base fixed to the bottom of the tub, having a plane portion which is not connected with the outside, a sump assembly provided in the plane portion of the base and fixed to the tub while shielding the communication hole of the bottom, having a sump and a driver, wherein washing water is received in the sump and the driver transmits a driving force to the sump, and a leakage sensing device provided in the base, sensing a water level of washing water leaked in the base.
- the dish washer according to the present invention has the following advantages.
- the sump assembly is fixed to a lower portion of the tub in a state that it is fixed to the plane portion of the base, it is possible to prevent the sump assembly from being detached from the tub or from being damaged even though impact is applied to the tub.
- the base is provided with a leakage sensing device, error operation and trouble of a driver, which may occur due to washing water leaked in the base, can be avoided.
- FIG. 1 is a sectional view illustrating an inner structure of a related art dish washer
- FIG. is an exploded perspective view of FIG. 1 ;
- FIG. 3 is a sectional view illustrating an inner structure of a dish washer according to the preferred embodiment of the present invention.
- FIG. 4 is a perspective view illustrating a base structure of a dish washer according to the preferred embodiment of the present invention.
- FIG. 5 is a perspective view illustrating the state that a leakage sensing device and a driver are provided in a base of a dish washer according to the preferred embodiment of the present invention
- FIG. 6 is a perspective view illustrating the process step of fixing a sump assembly of a dish washer according to the preferred embodiment of the present invention to a tub;
- FIG. 7 is a principal perspective view illustrating the state that a sump assembly of a dish washer according to the preferred embodiment of the present invention is fixed to a bottom of a tub;
- FIGS. 8 and 9 illustrate the operation of a leakage sensing device according to the preferred embodiment of the present invention.
- a dish washer according to the preferred embodiment of the present invention includes a tub 3 provided with a space for washing the dishes, a base 100 constituting a lower portion of a main body 1 , a sump assembly 200 having a driver 210 and a sump 220 , wherein the driver generates a driving force, and a leakage sensing device 300 provided in the base 100 to sense a proper water level of washing water leaked in the base 100 .
- the tub 3 is provided inside the main body 1 , and a space for washing the dishes is formed inside the tub 3 .
- the tub 3 is provided with a communication hole 3 a formed on the bottom.
- the communication hole 3 a is formed to communicate the sump 220 of the sump assembly 200 with the inside of the tub 3 .
- the bottom of the tub 3 constituting the communication hole 3 a is stepped downwardly along the circumference of the communication hole 3 a. This is to hang clamp hooks of the sump 220 on the stepped portion of the communication hole 3 a so that the sump 220 can firmly be fixed to the tub 3 .
- the clamp hooks of the sump 220 will be described later.
- the base 100 is fixed to the bottom of the tub 3 to constitute the lower portion of the dish washer.
- the base 100 includes a plate shaped plane portion 100 a .
- the plane portion 100 a is formed so as not to communicate with the outside, whereby the sump assembly 200 can be provided therein.
- the structure of the base 100 of the dish washer according to the present invention includes the plane portion 100 a having no communication hole 10 a formed on the base 100 , unlike the related art base 10 .
- the present invention is characterized in that the sump assembly 200 is provided on the plane portion 100 a of the base 100 as shown in FIG. 4 .
- the sump assembly 200 includes the driver 210 generating a driving force, and the sump 220 whose lower end portion is fixed to the driver 210 .
- the driver 210 serves to generate the driving force to pump the washing water received in the sump 220 , and includes a motor 211 , a motor bracket 212 , and guide ribs 213 .
- the motor 211 serves to rotate an impeller (not shown) to pump the washing water received in the sump 220 .
- the motor bracket 212 serves to fix the motor 211 to the guide ribs 213 .
- the motor bracket 212 may be formed in a single body with the motor 211 . Alternatively, the motor bracket 212 may be formed separately from the motor 211 .
- the motor 211 and the motor bracket 212 are formed in a single body.
- the motor bracket 212 is externally extended from both sides of the motor 211 , and is provided with a fitting hole 212 a at the end, wherein the fitting hole 212 a serves to fit the motor bracket 212 to the guide ribs 213 .
- the guide ribs 213 are provided such that the motor 211 is spaced apart from the plane portion 100 a of the base 100 at a predetermined height.
- the motor 211 since the motor 211 is spaced apart from the plane portion 100 a of the base 100 due to the guide ribs 213 , it can be protected from the washing water until the water leaked in the base 100 reaches a certain amount.
- the guide ribs 213 are extended from the plane portion 100 a of the base 100 at a predetermined height.
- the guide ribs 213 are respectively provided at both sides around an axis of the motor 211 .
- a screw hole 213 a is formed in a position corresponding to the fitting hole 212 a of the motor bracket 212 above the guide ribs 213 , whereby the motor bracket 212 can be screwed onto the guide ribs 213 .
- the washing water for washing the dishes is received in the sump 220 , and the sump 220 is fixed to the driver 210 so that a pumping force from the driver 210 is given to the sump 220 so as to supply the washing water to the tub 3 .
- a plurality of clamp hooks 221 are provided on the sump 220 so that the sump assembly 200 can easily be fixed to the tub 200 .
- the leakage sensing device 300 is provided inside the base 100 , and senses the water level of the washing water leaked in the base 100 to transmit a sensing signal, which allows the leaked washing water to be drained out, to a microcomputer (not shown) if the water level reaches a proper water level.
- the proper water level means a water level directly before the leaked washing water reaches the motor.
- the leakage sensing device 300 includes a float 310 ascending and descending depending on the water level of the washing water leaked in the base 100 , a guide portion 330 guiding ascent and descent of the float 310 , and a sensor 350 sensing the water level of the washing water leaked in the base 100 to transmit the sensing signal to the microcomputer (not shown).
- the float 310 is preferably formed of an expanded polystyrene (Styrofoam) having floating characteristics.
- the float 310 is formed of a Styrofoam material, it is not limited to such a material.
- the float 310 may be formed of another material having floating characteristics.
- the float 310 may be formed of a hollow floating material.
- the guide portion 330 includes a plurality of guides 331 provided in the plane portion 100 a of the base 10 at a predetermined height, and inlets 333 provided between the respective guides 331 to allow inflow of the leaked washing water.
- each of the guides 331 has an arc shaped cross section, and the float 310 of a cylinder corresponding to the arc of the guide 331 is provided at an inner side of the guide 331 .
- the float 310 is provided inside the guide portion 330 , and ascends and descends in only an area defined by the guide 331 if the water flows into the guide portion 330 through the inlets 333 formed between the respective guides 331 .
- a sensor guide 390 is preferably provided inside the guide portion 330 to ascend and descend along with the float 310 .
- the sensor guide 390 is provided to surround the float 310 , and a first sensor 353 is provided above the sensor guide 390 .
- the float 310 ascends in the range of 8 mm to 10 mm from the plane portion 100 a of the base 100 .
- the height of the guide 331 is preferably designed by considering the height of the float 310 and the ascending height of the float 310 .
- the sensor 350 includes the first sensor 353 and a second sensor 355 , wherein the first sensor 353 ascends and descends along with the float 310 , and the second sensor 355 is provided at a predetermined position to be in contact with the first sensor 353 , for example, below the sump, as the float 310 ascend, so as to transmit a signal of the first sensor 353 to the microcomputer.
- the height H 1 of each of the guide ribs 213 that support the motor 211 is higher than the ascending height H 2 of the float 310 . This is to prevent the lower portion of the motor 13 from being submerged in the leaked washing water until the first sensor 353 is in contact with the second sensor 355 as the float 310 ascends due to the leaked washing water.
- the motor 213 is provided below the sump 220 .
- the guide ribs 213 provided in the base 100 are screwed by using the motor bracket 212 provided in the motor 211 .
- the fitting hole 212 a formed in the motor bracket 212 is arranged to match the screw hole 213 a formed in the guide ribs 213 , the fitting hole 212 a is fixed to the screw hole 213 a by using a screw which is a separate fitting member.
- the base 100 is fixed to the lower portion of the tub 3 .
- the upper portion of the sump 220 is fixed to the lower portion of the tub 3 by using the clamp hooks 221 provided above the sump 220 .
- the clamp hooks 221 are fixably hung in a stepped portion of the bottom constituting the communication hole 3 a of the tub 3 .
- the base 100 is fixed to the lower portion of the tub 3 unlike the related art assembly process where the sump assembly 200 is provided through the lower portion of the base 100 after the base 100 is fixed to the tub 3 . Accordingly, in the present invention, more convenient assembly can be carried out.
- the sump assembly 200 is doubly fixed to the base 100 and the bottom of the tub 3 , it is possible to prevent the sump assembly 200 from being detached from the tub 3 or from being damaged even though impact is applied to the main body during falling test and transportation.
- the leaked washing water is filled in the plane portion 100 a of the base 100 .
- the washing water partially flows into the guide through the inlets 333 formed in the guide of the leakage sensing device 300 , and the float 310 is ascended by means of buoyancy.
- the sensor guide 390 provided with the first sensor 353 is ascended along with the float 310 .
- the first sensor 353 provided in the sensor guide 390 is in contact with the second sensor 355 as the water level of the washing water flown into the guide portion 330 increases.
- the leaked washing water is drained out without reaching the maximum water level of the leaked washing water to the bottom of the motor 211 .
- the second sensor 355 transmits to the microcomputer a signal indicating the state that the first sensor 353 is in contact with the second sensor 355 .
- the microcomputer operates a drain pump (not shown) provided in the base 100 to drain out the washing water received in the base 100 .
- the driver 210 is provided on the plane portion 100 a of the base 100 , and the base 100 is fixed to the bottom of the tub 3 in a state that the leakage sensing device 300 is provided, so that assembly between the base 100 and the tub 3 can be improved, and the driver can in advance be prevented from being operated in error and from being out of order due to the leaked washing water.
- the dish washer according to the present invention excellent assembly among the base, the sump assembly and the tub can be obtained, and error operation and trouble of the driver can be avoided in advance even though the washing water is leaked in the base provided with the driver. Accordingly, the dish washer of the present invention can industrially be used.
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- Washing And Drying Of Tableware (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
A dish washer is disclosed, in which assembly of the dish washer is improved, and an error operation and trouble of a driver due to water leaked in a base can be avoided. To this end, the dish washer includes a tub (3) provided with a space for washing the dishes and a communication hole (3 a) formed on the bottom, a base (100) fixed to the bottom of the tub (3), having a plane portion (100 a) which is not connected with the outside, a sump assembly (200) provided in the plane portion of the base and fixed to the tub (3) while shielding the communication hole (3 a) of the bottom, having a sump (220) and a driver (210), wherein washing water is received in the sump (220) and the driver (210) transmits a driving force to the sump (220), and a leakage sensing device (300) provided in the base (100), sensing a water level of washing water leaked in the base (100). Thus, assembly of the dish washer can be improved, and also life span of the driver can be increased.
Description
- The present invention relates to a dish washer, and more particularly, to an improved base structure of a dish washer.
- Generally, a dish washer is to remove food or dirt remaining on the dishes through chemical decomposition and mechanical control of water pressure. Since the dish washer serves to perform various functions such as rinsing, sterilizing, and drying, in addition to a washing function, its demand from the moderns in busy daily life is on an increasing trend.
- A related art dish washer will be described with reference to
FIG. 1 . - A related art dish washer 1 washes the dishes by spraying washing water to the dishes. The dish washer 1 includes a
tub 3 provided with a space for washing the dishes, and abase 10 disposed below thetub 3 and provided with various parts for supplying washing water of high pressure to thetub 3. - The
tub 3 and thebase 10 will now be described. - A
door 7 that can be opened and closed is provided on a front surface of thetub 3. Anupper rack 12 and alower rack 14 are provided inside thetub 3, wherein the dishes are arranged in the upper andlower racks upper spray arm 32 and alower spray arm 34 are respectively provided below theupper rack 12 and thelower rack 14 to spray the washing water. - A
heater 15 is provided at one side inside thetub 3 to form steam by heating the water remaining in thetub 3 during a drying stroke after a washing stroke is finished. - Meanwhile, a
sump 9 is provided in thebase 10 to receive the washing water, and a washing pump is provided in thesump 9. The washing pump serves to pump the washing water to supply the washing water to theupper spray arm 32 and thelower spray arm 34. In general, thesump 9, theupper spray arm 32 and thelower spray arm 34 are connected with one another by anupper connection pipe 322 and alower connection pipe 324. - Also, the washing pump generally includes a
motor 13 generating a driving force, and an impeller (not shown) connected with themotor 13. - An assembly process of the dish washer will be described with reference to
FIG. 2 . - As shown in
FIG. 2 , thebase 10 is connected with a lower portion of thetub 3. - Next, the
motor 13 is connected with thesump 9. - The
sump 9 connected with themotor 13 is then connected with the lower portion of thetub 3 through a throughhole 10 a formed in thebase 10. - The operation of the aforementioned related art dish washer will be described.
- Once the dish washer 1 is operated, the washing water in the
sump 9 is pumped by the washing pump and then supplied to theupper spray arm 32 and/or thelower spray arm 34. Accordingly, the washing water is sprayed from theupper spray arm 32 and thelower spray arm 34 to the dishes arranged on theupper rack 12 and/or thelower rack 14 so as to wash the dishes. The washing water may separately be supplied to theupper spray arm 32 and thelower spray arm 34. Alternatively, the washing water may simultaneously be supplied to theupper spray arm 32 and thelower spray arm 34. - The washing water sprayed to the dishes is again collected in the
sump 9 through a collection hole (not shown) connected with thesump 9. At this time, since the washing water includes contaminant water generated by washing of the dishes, it can be filtered through a predetermined filtering means. - However, the aforementioned related art dish washer has the following problems.
- First, if the washing water is filled in the
base 10 of the dish washer due to a water leakage, themotor 13 provided on thebase 10 is submerged in the water due to the leaked washing water. For this reason, problems occur in that the motor may be operated in error and may tend to cause a trouble. - Second, in order to fix the
sump 9, which is connected with themotor 13, to the lower portion of thetub 3, after thetub 3 connected with thebase 10 is turned upside down, thesump 9 is fixably inserted into the throughhole 10 a formed in thebase 10. In this case, problems occur in that a user may feel inconvenience when turning thetub 3 upside down and fixing thesump 9 to thetub 3 through the narrow throughhole 10 a and that much working time is required. - Finally, the
sump 9 fixed to the throughhole 10 a of thebase 10 may easily be detached from the lower portion of thetub 3 due to load when external impact is applied thereto. For this reason, a problem occurs in that thesump 9 may be damaged. - Technical Problem
- Accordingly, the present invention is directed to a dish washer that substantially obviates one or more problems due to limitations and disadvantages of the related art.
- An object of the present invention is to provide a dish washer, in which assembly of the dish washer is improved, and an error operation and trouble of a driver due to water leaked in a base can be avoided.
- Technical Solution
- To achieve these objects and other advantages and in accordance with the purpose of the invention, as embodied and broadly described herein, a dish washer according to the present invention includes a tub provided with a space for washing the dishes and a communication hole formed on the bottom, a base fixed to the bottom of the tub, having a plane portion which is not connected with the outside, a sump assembly provided in the plane portion of the base and fixed to the tub while shielding the communication hole of the bottom, having a sump and a driver, wherein washing water is received in the sump and the driver transmits a driving force to the sump, and a leakage sensing device provided in the base, sensing a water level of washing water leaked in the base.
- Advantageous Effects
- The dish washer according to the present invention has the following advantages.
- First, in the present invention, since a base is fixed to a tub after a sump assembly is fixed to a plane portion of the base, assembly can be improved.
- Second, since the sump assembly is fixed to a lower portion of the tub in a state that it is fixed to the plane portion of the base, it is possible to prevent the sump assembly from being detached from the tub or from being damaged even though impact is applied to the tub.
- Finally, since the base is provided with a leakage sensing device, error operation and trouble of a driver, which may occur due to washing water leaked in the base, can be avoided.
- The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:
-
FIG. 1 is a sectional view illustrating an inner structure of a related art dish washer; - FIG. is an exploded perspective view of
FIG. 1 ; -
FIG. 3 is a sectional view illustrating an inner structure of a dish washer according to the preferred embodiment of the present invention; -
FIG. 4 is a perspective view illustrating a base structure of a dish washer according to the preferred embodiment of the present invention; -
FIG. 5 is a perspective view illustrating the state that a leakage sensing device and a driver are provided in a base of a dish washer according to the preferred embodiment of the present invention; -
FIG. 6 is a perspective view illustrating the process step of fixing a sump assembly of a dish washer according to the preferred embodiment of the present invention to a tub; -
FIG. 7 is a principal perspective view illustrating the state that a sump assembly of a dish washer according to the preferred embodiment of the present invention is fixed to a bottom of a tub; and -
FIGS. 8 and 9 illustrate the operation of a leakage sensing device according to the preferred embodiment of the present invention. - Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
- Referring to
FIG. 3 , a dish washer according to the preferred embodiment of the present invention includes atub 3 provided with a space for washing the dishes, abase 100 constituting a lower portion of a main body 1, asump assembly 200 having adriver 210 and asump 220, wherein the driver generates a driving force, and aleakage sensing device 300 provided in thebase 100 to sense a proper water level of washing water leaked in thebase 100. - Since the general constitution of the dish washer according to the present invention is the same as that of the related art dish washer, its repeated description will be omitted. Technical features of the dish washer according to the preferred embodiment of the present invention will be described in detail.
- First, the
tub 3 is provided inside the main body 1, and a space for washing the dishes is formed inside thetub 3. Thetub 3 is provided with acommunication hole 3 a formed on the bottom. - The
communication hole 3 a is formed to communicate thesump 220 of thesump assembly 200 with the inside of thetub 3. - Also, it is preferable that the bottom of the
tub 3 constituting thecommunication hole 3 a is stepped downwardly along the circumference of thecommunication hole 3 a. This is to hang clamp hooks of thesump 220 on the stepped portion of thecommunication hole 3 a so that thesump 220 can firmly be fixed to thetub 3. The clamp hooks of thesump 220 will be described later. - The
base 100 is fixed to the bottom of thetub 3 to constitute the lower portion of the dish washer. - The
base 100 includes a plate shapedplane portion 100 a. In this case, theplane portion 100 a is formed so as not to communicate with the outside, whereby thesump assembly 200 can be provided therein. - As described above, the structure of the
base 100 of the dish washer according to the present invention includes theplane portion 100 a having nocommunication hole 10 a formed on thebase 100, unlike therelated art base 10. - In other words, the present invention is characterized in that the
sump assembly 200 is provided on theplane portion 100 a of the base 100 as shown inFIG. 4 . - The
sump assembly 200 includes thedriver 210 generating a driving force, and thesump 220 whose lower end portion is fixed to thedriver 210. - The
driver 210 serves to generate the driving force to pump the washing water received in thesump 220, and includes amotor 211, amotor bracket 212, and guideribs 213. - At this time, the
motor 211 serves to rotate an impeller (not shown) to pump the washing water received in thesump 220. - The
motor bracket 212 serves to fix themotor 211 to theguide ribs 213. Themotor bracket 212 may be formed in a single body with themotor 211. Alternatively, themotor bracket 212 may be formed separately from themotor 211. - In the preferred embodiment of the present invention, the
motor 211 and themotor bracket 212 are formed in a single body. - At this time, the
motor bracket 212 is externally extended from both sides of themotor 211, and is provided with afitting hole 212 a at the end, wherein thefitting hole 212 a serves to fit themotor bracket 212 to theguide ribs 213. - As shown in
FIG. 4 , theguide ribs 213 are provided such that themotor 211 is spaced apart from theplane portion 100 a of the base 100 at a predetermined height. - In other words, since the
motor 211 is spaced apart from theplane portion 100 a of thebase 100 due to theguide ribs 213, it can be protected from the washing water until the water leaked in thebase 100 reaches a certain amount. - To this end, the
guide ribs 213 are extended from theplane portion 100 a of the base 100 at a predetermined height. - Furthermore, it is preferable that the
guide ribs 213 are respectively provided at both sides around an axis of themotor 211. Ascrew hole 213 a is formed in a position corresponding to thefitting hole 212 a of themotor bracket 212 above theguide ribs 213, whereby themotor bracket 212 can be screwed onto theguide ribs 213. - The washing water for washing the dishes is received in the
sump 220, and thesump 220 is fixed to thedriver 210 so that a pumping force from thedriver 210 is given to thesump 220 so as to supply the washing water to thetub 3. - At this time, a plurality of clamp hooks 221 are provided on the
sump 220 so that thesump assembly 200 can easily be fixed to thetub 200. - The
leakage sensing device 300 is provided inside thebase 100, and senses the water level of the washing water leaked in the base 100 to transmit a sensing signal, which allows the leaked washing water to be drained out, to a microcomputer (not shown) if the water level reaches a proper water level. - At this time, the proper water level means a water level directly before the leaked washing water reaches the motor.
- As shown in
FIGS. 8 and 9 , theleakage sensing device 300 includes afloat 310 ascending and descending depending on the water level of the washing water leaked in thebase 100, aguide portion 330 guiding ascent and descent of thefloat 310, and asensor 350 sensing the water level of the washing water leaked in the base 100 to transmit the sensing signal to the microcomputer (not shown). - In this case, the
float 310 is preferably formed of an expanded polystyrene (Styrofoam) having floating characteristics. - In the preferred embodiment of the present invention, although the
float 310 is formed of a Styrofoam material, it is not limited to such a material. Thefloat 310 may be formed of another material having floating characteristics. For example, thefloat 310 may be formed of a hollow floating material. - The
guide portion 330 includes a plurality ofguides 331 provided in theplane portion 100 a of the base 10 at a predetermined height, andinlets 333 provided between therespective guides 331 to allow inflow of the leaked washing water. - In this case, each of the
guides 331 has an arc shaped cross section, and thefloat 310 of a cylinder corresponding to the arc of theguide 331 is provided at an inner side of theguide 331. - In other words, the
float 310 is provided inside theguide portion 330, and ascends and descends in only an area defined by theguide 331 if the water flows into theguide portion 330 through theinlets 333 formed between the respective guides 331. - At this time, a
sensor guide 390 is preferably provided inside theguide portion 330 to ascend and descend along with thefloat 310. - The
sensor guide 390 is provided to surround thefloat 310, and afirst sensor 353 is provided above thesensor guide 390. - Meanwhile, the
float 310 ascends in the range of 8 mm to 10 mm from theplane portion 100 a of thebase 100. The height of theguide 331 is preferably designed by considering the height of thefloat 310 and the ascending height of thefloat 310. - The
sensor 350 includes thefirst sensor 353 and asecond sensor 355, wherein thefirst sensor 353 ascends and descends along with thefloat 310, and thesecond sensor 355 is provided at a predetermined position to be in contact with thefirst sensor 353, for example, below the sump, as thefloat 310 ascend, so as to transmit a signal of thefirst sensor 353 to the microcomputer. - Meanwhile, it is preferable that the height H1 of each of the
guide ribs 213 that support themotor 211 is higher than the ascending height H2 of thefloat 310. This is to prevent the lower portion of themotor 13 from being submerged in the leaked washing water until thefirst sensor 353 is in contact with thesecond sensor 355 as thefloat 310 ascends due to the leaked washing water. - Hereinafter, the assembly process of the aforementioned dish washer will be described with reference to
FIGS. 6 and 7 . - First, the
motor 213 is provided below thesump 220. - Next, the
guide ribs 213 provided in thebase 100 are screwed by using themotor bracket 212 provided in themotor 211. - At this time, after the
fitting hole 212 a formed in themotor bracket 212 is arranged to match thescrew hole 213 a formed in theguide ribs 213, thefitting hole 212 a is fixed to thescrew hole 213 a by using a screw which is a separate fitting member. - Next, once the
sump assembly 200 including themotor 211 and thesump 220 is provided on thebase 100, as shown inFIG. 6 , thebase 100 is fixed to the lower portion of thetub 3. - At this time, as shown in
FIG. 7 , the upper portion of thesump 220 is fixed to the lower portion of thetub 3 by using the clamp hooks 221 provided above thesump 220. - The clamp hooks 221 are fixably hung in a stepped portion of the bottom constituting the
communication hole 3 a of thetub 3. - As described above, after the
sump assembly 200 is fixed to theplane portion 100 a of the base 100 as shown inFIG. 6 , thebase 100 is fixed to the lower portion of thetub 3 unlike the related art assembly process where thesump assembly 200 is provided through the lower portion of the base 100 after thebase 100 is fixed to thetub 3. Accordingly, in the present invention, more convenient assembly can be carried out. - Furthermore, since the
sump assembly 200 is doubly fixed to thebase 100 and the bottom of thetub 3, it is possible to prevent thesump assembly 200 from being detached from thetub 3 or from being damaged even though impact is applied to the main body during falling test and transportation. - Hereinafter, the operation of the aforementioned dish washer will be described with reference to
FIGS. 8 and 9 . - First, if the washing water is leaked as the dish washer is driven, the leaked washing water is filled in the
plane portion 100 a of thebase 100. - At this time, the washing water partially flows into the guide through the
inlets 333 formed in the guide of theleakage sensing device 300, and thefloat 310 is ascended by means of buoyancy. - As the
float 310 is ascended, thesensor guide 390 provided with thefirst sensor 353 is ascended along with thefloat 310. - Afterwards, the
first sensor 353 provided in thesensor guide 390 is in contact with thesecond sensor 355 as the water level of the washing water flown into theguide portion 330 increases. - At this time, the leaked washing water is drained out without reaching the maximum water level of the leaked washing water to the bottom of the
motor 211. - This is because that the height of the
guide ribs 213 that support themotor 211 is higher than the ascending height of thesensor guide 390 as described above. - Next, if the
first sensor 353 is in contact with thesecond sensor 355, thesecond sensor 355 transmits to the microcomputer a signal indicating the state that thefirst sensor 353 is in contact with thesecond sensor 355. - Afterwards, the microcomputer operates a drain pump (not shown) provided in the base 100 to drain out the washing water received in the
base 100. - In the aforementioned dish washer according to the present invention, the
driver 210 is provided on theplane portion 100 a of thebase 100, and thebase 100 is fixed to the bottom of thetub 3 in a state that theleakage sensing device 300 is provided, so that assembly between the base 100 and thetub 3 can be improved, and the driver can in advance be prevented from being operated in error and from being out of order due to the leaked washing water. - In the dish washer according to the present invention, excellent assembly among the base, the sump assembly and the tub can be obtained, and error operation and trouble of the driver can be avoided in advance even though the washing water is leaked in the base provided with the driver. Accordingly, the dish washer of the present invention can industrially be used.
Claims (12)
1. A dish washer comprising: a tub provided with a space for washing dishes and a communication hole formed on a bottom thereof; a base fixed to the bottom of the tub, having a plane portion; a sump assembly provided in the plane portion of the base and fixed to the tub, the assembly having a sump and a driver, wherein washing water is received in the sump and the driver supplies a driving force to the sump; and a leakage sensing device provided in the base, sensing a water level of washing water leaked in the base.
2. The dish washer as claimed in claim 1 , wherein the leakage sensing device includes: a float ascending and descending depending on the water level of the leaked washing water; a guide portion guiding ascent and descent of the float; and a sensor sensing the water level of the leaked washing water to transmit a sensed signal to a microcomputer.
3. The dish washer as claimed in claim 2 , wherein the float includes a material of Styrofoam.
4. The dish washer as claimed in claim 2 , wherein the float is a hollow floating material.
5. The dish washer as claimed in claim 2 , wherein the sensor includes: a first sensor ascending and descending along with the float; and a second sensor provided at a position corresponding to the first sensor to transmit information of water level to a microcomputer in contact with the first sensor if the washing water is received in the base until the washing water reaches the driver.
6. The dish washer as claimed in claim 2 , wherein the sensor further includes a sensor guide that surrounds the float.
7. The dish washer as claimed in claim 1 , wherein the driver includes: a motor; guide ribs provided in the plane portion of the base to space the motor apart from the plane portion; and a motor bracket for fixing the motor to the guide ribs.
8. The dish washer as claimed in claim 7 , wherein the guide ribs have a height higher than the ascent height of the float.
9. The dish washer as claimed in claim 7 , wherein the guide ribs are respectively provided at both sides around an axis of the motor.
10. The dish washer as claimed in claim 7 , wherein the motor bracket is screwed onto the guide ribs.
11. The dish washer as claimed in claim 1 , wherein the bottom of the tub constituting the communication hole is stepped.
12. The dish washer as claimed in claim 11 , wherein the sump assembly further includes a plurality of clamp hooks provided above the sump to fixably hang the sump onto the stepped portion of the bottom.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020050079509A KR101241866B1 (en) | 2005-08-29 | 2005-08-29 | Dish washer |
KR1020050079511A KR20070027101A (en) | 2005-08-29 | 2005-08-29 | Dish washer and method of assembling the same |
KR10-2005-0079511 | 2005-08-29 | ||
KR10-2005-0079509 | 2005-08-29 | ||
PCT/KR2006/003394 WO2007027036A2 (en) | 2005-08-29 | 2006-08-29 | Dish washer |
Publications (1)
Publication Number | Publication Date |
---|---|
US20090211614A1 true US20090211614A1 (en) | 2009-08-27 |
Family
ID=37809299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/997,271 Abandoned US20090211614A1 (en) | 2005-08-29 | 2006-08-29 | Dish Washer |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090211614A1 (en) |
EP (1) | EP1919348A2 (en) |
WO (1) | WO2007027036A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120018448A1 (en) * | 2010-07-20 | 2012-01-26 | Ecolab Usa Inc. | Product delivery and monitoring system |
EP2774527A1 (en) | 2013-03-05 | 2014-09-10 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | A fixation element and a washer/dryer device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009000211B4 (en) * | 2009-01-14 | 2019-05-29 | BSH Hausgeräte GmbH | dishwasher |
CN104342889A (en) * | 2014-10-30 | 2015-02-11 | 南京乐金熊猫电器有限公司 | Water overflow sensing base for washing machine |
WO2016186437A1 (en) * | 2015-05-20 | 2016-11-24 | Lg Electronics Inc. | Dishwasher and method of manufacturing the same |
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DE3014427C2 (en) * | 1980-04-15 | 1982-12-23 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Safety device against flooding in household appliances carrying liquids |
DE3614345C1 (en) * | 1986-04-28 | 1987-09-24 | Bosch Siemens Hausgeraete | Dishwasher |
DE3626357A1 (en) * | 1986-08-04 | 1988-02-18 | Licentia Gmbh | Fluid-carrying appliance |
IT1298747B1 (en) * | 1998-03-16 | 2000-02-02 | Smeg Spa | DISHWASHER OR WASHING MACHINE WITH ANTI-FLOODING DEVICE FUNCTIONALITY VERIFICATION ELEMENT |
KR100457576B1 (en) * | 2002-11-28 | 2004-11-18 | 엘지전자 주식회사 | Dish washer |
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2006
- 2006-08-29 WO PCT/KR2006/003394 patent/WO2007027036A2/en active Application Filing
- 2006-08-29 US US11/997,271 patent/US20090211614A1/en not_active Abandoned
- 2006-08-29 EP EP06798564A patent/EP1919348A2/en not_active Withdrawn
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US3038045A (en) * | 1960-03-08 | 1962-06-05 | Gonetz Irving | Fluid leak detectors |
US3335867A (en) * | 1965-10-05 | 1967-08-15 | Tappan Co | Screen filter assembly |
US3825373A (en) * | 1973-01-02 | 1974-07-23 | Gen Electric | Dishwasher assembly |
US4221547A (en) * | 1978-09-18 | 1980-09-09 | White Consolidated Industries, Inc. | Resilient mount for dishwasher motor and pump assembly |
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US5118254A (en) * | 1991-05-31 | 1992-06-02 | Maytag Corporation | Apparatus and method for dishwasher pump mounting |
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US20120018448A1 (en) * | 2010-07-20 | 2012-01-26 | Ecolab Usa Inc. | Product delivery and monitoring system |
US8833605B2 (en) * | 2010-07-20 | 2014-09-16 | Ecolab Usa Inc. | Product delivery and monitoring system |
EP2774527A1 (en) | 2013-03-05 | 2014-09-10 | Vestel Beyaz Esya Sanayi Ve Ticaret A.S. | A fixation element and a washer/dryer device |
Also Published As
Publication number | Publication date |
---|---|
WO2007027036A2 (en) | 2007-03-08 |
EP1919348A2 (en) | 2008-05-14 |
WO2007027036A3 (en) | 2007-04-26 |
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Legal Events
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AS | Assignment |
Owner name: LG ELECTRONICS INC., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KWON, SOON YONG;SONG, HO JUNE;REEL/FRAME:021928/0836;SIGNING DATES FROM 20081013 TO 20081016 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |