CA2193336A1 - Dishwasher with improved device for drying by condensation - Google Patents
Dishwasher with improved device for drying by condensationInfo
- Publication number
- CA2193336A1 CA2193336A1 CA 2193336 CA2193336A CA2193336A1 CA 2193336 A1 CA2193336 A1 CA 2193336A1 CA 2193336 CA2193336 CA 2193336 CA 2193336 A CA2193336 A CA 2193336A CA 2193336 A1 CA2193336 A1 CA 2193336A1
- Authority
- CA
- Canada
- Prior art keywords
- conduit
- fact
- basin
- channels
- dishwasher according
- 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
Links
Classifications
-
- 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
- A47L15/48—Drying arrangements
- A47L15/483—Drying arrangements by using condensers
Abstract
A dishwasher suitable for drying moist air contained in the basin by condensation. two external conduit are connected to said basin, independent of each other. The first conduit opens into the upper portion of the basin in its lower part and includes within it a fan suitable for making the air in it circulate. The second conduit aspirates an air flow in from the outside with an appropriate aspiration intake and expelling it to the outside through a suitable discharge outlet by means of a second fan. A heat exchanger between these conduits is made in such a way that the flow of said first conduit and the flow of said second conduit are directed perpendicularly when they pass through the exchanger. The heat exchanger is preferably placed in the space between the basin and outer cabinet wall and includes first elongated parallel channels with rectangular cross-sections and arranged so as to be side by side but separated by corresponding interspaces and second parallel channels with a similar cross-section, arranged in said interspaces that separate said first channels.
Description
~ - - 21 93336 , 1 DISHWASH~R WITH IMPROYED DEV~CE FOR DRYING BY CONDENSATION
2 BAc~GRou~D oF THE INVENTION
3 ~he invention concerns a di~hwa~her, in particular a 4 hou~ehold dishwasher, provided with an lmproved devlce for the conden~ation of moi~ture from the air contained in a 6 wa~hlng basin.
7 It i~ ~nown that in di~hwa~he~6, in particular 8 hou~ehold dishwa~hers, a method of drying the dishe~ by 9 means of dehumidification of the air saturated with water ~apor contained in the washing basin is CG on- This 11 dehumidification is accomplished by making the moist air 12 pa~ through a ~uitable conduit provided with a blower or 13 ~entilator that provides for circulation of the air. A
14 heat exchanger with a cold body is applied to the conduit to condense the moisture.
16 Usually, the condensed water is returned to the basin 17 by ~ravit~, following the air ~low. The cold body is 18 usually a heat-conducting su~face that is cooled in turn by 19 an air flow taken from and returned to the air outside of the dishwa~her a~ter having passed over the heat-conducting 21 ~urface. This type o~ dishwa~her~ i~ di~closed, ~or 22 example, in patent GB 2263969, which has the doublc 23 inconvenience o~ a heat exchanger made of a single ~urface, 24 over which counte~-currents pass on two oppo~ite faces and ~herefore with low efficiency, and the fact that the motor 26 tbat activates the fan i8 placod in ~he ~pper back corner 27 of the dishwasher cabinet, thu~ occupying a ~pace that 28 reduces the usable volume of the basin.
29 Patent GB 2265820 is functionally similar to the one mentioned above; the sole difference is the different 31 position of the aspiration and expulsion openings for the 32 out~ide cooling air, wh~ch in thi6 patent are placed on 33 backwall.
~ 21 93336 1 Patent GB 2262027 (TOSHIBA) disclose~ mean~ for drying Z ~y condensatio~ in a di~hwasher having a vertical wall 3 along which a circulation of moist hot air coming ~rom the 4 wa~hi~g ba~in, with a ~heet of cold water ta~en from the S outside water-distribution network passing over said 6 vertical wall. The temperature dif~erence between the 7 surfaces of said vertical wall and the flow of moist hot 8 air that is blown so as to contact said wall aa~se 9 condensation of the ~oisture in the air.
ln This solution is certainly adequate and even very 11 effic$ent for energetic drying of the air; however, it has 12 the great inconvenience o~ requiring a significan~
13 additional consumption of water ~rom the water network as a 14 mean~ of cooling, and this fact is in direct opposition to the requirement and efforts of manufacturers of dishwashers 16 to offer products on the market that need ever le~s wate~, 17 energy, and detergent~ and accessories in order to ~unction 18 correctly and ~till provide sati6fa~to~y ~ervices.
19 The solution disclo~ed in patent DE 39 38 170 tSanyo Electric Co.) ~ses a single dual-purpose fan, which 21 certainly reduces the complexity and the cost o~ the 22 device; however, as with the patent~ already mentioned, it 23 repeats their inconvenience6 ~ including the ~act that the 24 flows of moist hot air ~rom the cooling and o~ cooling air are in parallel currents and that the ~an and the motor ar~
26 arranged behind the basin, reducing the u~able volume 27 the~e.
28 Moreover, the use of the dual-purpose fan, with the 29 necessity o~ limited interspaces for play be~ween the blade~ of the fan and the two di~tinct air-flow channels, 31 makes ~t inevitable that moist air is drawn to the outsid~
32 o~ the mac~ine, which is something that i8 desirable to 33 avoid.
34 Patent DE GM oo z6 939.2 disclo~e~ a type of household dish~asher provided with a condensation ~ystem ~or moist 36 air that only make~ the air circulate in a conduit external 37 ~o the ba~in in which the condensation occurs by a heat 1 eYch~e wit~ the adjacent side walls of the cabin~t.
2 In thi~ case too, the inconvenience~ of weak cooling 3 action and therefore of cond~nsation a~e ob6erved, whic~
4 ~hould in fact be reinforced by activation o~ a cooling of the air in thi~ conduit. In practice there i8 a c_ n 6 electrical re~istance, which increaseG the temperature 7 di~ference in the air between the two end6 of ~aid conduit.
8 However, thi~ contrivance worsen~ energy conYumption and 9 ~ake~ the machine more complicated, more costly, and also more delicate in u6e.
11 BRIE~ SUMMARY OF THE INVENTION
12 It would there~ore be desirable, and is the goal o~
13 the present inven~ion, to make di6hwashers provided with 14 mean~ for drying by condensation of the moi~t air t~at are ~unctionally e~ficien~, ~imple, and require only min~mal 16 consumption of supplementary energy.
17 BRIEF DEscRIPTION OF TI~E SE~ERAL VIEWS OF THE DRAWING
18 The invention will be understood better by mean~ o~
19 the following de~cription, whlc~ is given only by way of a non-limiting example, and with reference to the attached 21 diagrams, in which:
22 Fig. 1 ~hows schematically a main diagram, viewed from 23 the side, of a dishwasher having a condensation device 24 according to the invention;
F~gs. 2 and 3 ahow separately two sub-as~emblie~ o~
26 the invention, which a~e assem~led in sequence;
27 Fig. 4 ~hows a perspective view, partially cut away, z8 of the device acaording to the invention; and 29 Figures 5 and 6, respectively, show a horizontal and 30 vertical section of the device of Fig. 4 taken from lines 31 5-5 and 6-6, respectively.
21 9333~
DESCRIPTION OF ~HE ~:~V~;N l ~ON
2 In the following description, the torm "air" will be 3 used as equivalent to the term "moist hot air," but the use 4 of one ter~ or the other does not affect the clarity of the presentation, given the context in which these term6 are 6 used, as will be evident to an expert in the field.
7 As shown in Fig. l, The invention includes a flr~t 8 vertical conduit 1 and a second conduit 2, essentially g perpendicular to the flr6t conduit. The fir~t conduit 1 is connected to the interior of the ~a~in by means of upper 11 and lower opening~ 3 and 4, respectively, located at 12 corresponding end part6 of the fir~t conduit.
13 A first motorized fan 5 i8 suitable for a~piratlng 14 air in th~ough the upper opening 3 and is located near the lower opening 4. The second conduit 2 is open at its end~, 16 wit~ a co~responding a~piration ~ntake 55 and di6charge 17 outlet 6, both of which open to thQ out~ide. A second 18 motorized fan 7, ~uitable for making air taken ~rom the 19 out~ide circulate through said second conduit i6 located near the a~plration intake 55.
21 Referring also to Figs. 2 through 6, the first and 22 second conduits intersect in a heat exchanger 8, made 23 8ub~tantially so as to have ~e~eral first parallel channel~
24 9 inserted in the fi~t conduit in such a way that the entire air flow of said fir6t conduit ifi completely divided ~6 among said fir~t channels. The first channel~ are 27 ~eparated from each other by interspaces lo, in which 28 second parallel channels 11 are fitted. The second 29 channels 11 are inserted into said second conduit in such a way that the internal air flow of sald s~cond co~duit i~
31 divided among three second channels. The heat exchanger i6 32 configured so that the fir~t channels Y and the second 33 channels 11 are arranged in perpendicular direction~.
34 Conden~ate produced ~y the moist ai~ that flows through 6aid first channels descends or falls through a 36 final ~egment 20 of ~aid fir~t conduit downstream from ~aid ~ 21 q3336 1 heat exc~anger by gravity into the basin through the lower 2 opening 4, which i~ placed in a po6ition underneath the 3 position of said exchanger.
4 The advantage of this config~ration cau~ing division of the air flow~ i~ that the area of the heat exchange i~
6 increased enormou~ly without ~ignificantly ~ncreasing the 7 volume or the dimen~ions o~ the heat exchanger. ~hi~
8 configuration, together with the fact that the flow~ are g perpendlcular, signiflcantly improvQ~ the efficiency of the heat exchanger, a6 demonstrated in numerous laboratory 11 test~. A simpli~ied version of this type of ~rh~Anger 12 uses a single pair of chann~l~, one for the cooling a~r and 13 one for the moist air to be dried, but this solution 14 provide~ less efficiency in the heat excha~ge.
Even though these channels can have cross-sections o~
16 various ~hape~ and need not be pa~ticularly elongated, a 17 preferred configuration i9 illustrated in the diagrams, in 18 particular in Figures 2 and 3. A~ ~hown, the first ls parallel channels g have a highly elongated rectangular cross-section and with ~imilar dimensions, arranged side by 21 side, but ~eparated from each other by corresponding 22 inter~pace~ lo, similar to the second parallel channel~ ll, 23 which a~e placed between the interepace~ that ~eparate the 24 first parallel channel~. Thi~ kind of con~iguration inC~ease~ the areas that are side by side each other and a 6 thereby increa~es the heat exchange.
27 The invention includes several possible alternatives.
28 ~ir~t, the ~especti~e wall8 13 and 14 of said first and z9 second parallel channels, illustrated separately in Figure~
2 and 3 ~or simplicity, can be ~oined in the construction 31 phase in such a way that a pair of adjacent walls i9 made 32 as a ~ingle physical wall, suitable for defining ~oth 33 channels located on opposite faces of each wall, a~ ~hown 34 in Fig. 4. This permits the production of the exchanger to be simplified and economized and also lmproves the heat 36 eY~hA~ge between ad~acent channels i~ improved.
37 A further alternative, useful because i~ occupie6 th~
_ 21 ~3336 1 18a8t po6sible 6pace, i~ given-by thQ fact that the fan~
2 are motorized by a single motor, to which sUitable coupling 3 device6 are connected. The motor ~its dlrectly onto a 4 shaft of the eecond ~an 7, which i6 placed under the basin.
The motor tran~mits motion to the flr~t fan 5 by mean6 of a 6 suitable belt 16 placed between two ~uitable pulleys 7 mounted on the re~pective fans.
8 The motor i8 also positioned in such a way as not to 9 be exposed to the cold air aspirated from the outside, because otherwise the heat relea~ed during it~ operation 11 would heat thi~ cooling air, significantly reducing its 12 capaclty to aondense hot moi6t ai~.
~3 In order to favor passage of the cooling alr into sald 14 ~econd conduit, the intake 55 and outlet 6 are a~ra~ged in two opposite d~rections, pre~erably one on the front 17 and 16 the other on the back 18.
11 Although the invention as been de6cribed with the 18 example of the preferred embodiment and with a known 19 terminology, thi~ i8 ~ot considered limiting, because an expert in the field can apply numerou~ variations to it.
7 It i~ ~nown that in di~hwa~he~6, in particular 8 hou~ehold dishwa~hers, a method of drying the dishe~ by 9 means of dehumidification of the air saturated with water ~apor contained in the washing basin is CG on- This 11 dehumidification is accomplished by making the moist air 12 pa~ through a ~uitable conduit provided with a blower or 13 ~entilator that provides for circulation of the air. A
14 heat exchanger with a cold body is applied to the conduit to condense the moisture.
16 Usually, the condensed water is returned to the basin 17 by ~ravit~, following the air ~low. The cold body is 18 usually a heat-conducting su~face that is cooled in turn by 19 an air flow taken from and returned to the air outside of the dishwa~her a~ter having passed over the heat-conducting 21 ~urface. This type o~ dishwa~her~ i~ di~closed, ~or 22 example, in patent GB 2263969, which has the doublc 23 inconvenience o~ a heat exchanger made of a single ~urface, 24 over which counte~-currents pass on two oppo~ite faces and ~herefore with low efficiency, and the fact that the motor 26 tbat activates the fan i8 placod in ~he ~pper back corner 27 of the dishwasher cabinet, thu~ occupying a ~pace that 28 reduces the usable volume of the basin.
29 Patent GB 2265820 is functionally similar to the one mentioned above; the sole difference is the different 31 position of the aspiration and expulsion openings for the 32 out~ide cooling air, wh~ch in thi6 patent are placed on 33 backwall.
~ 21 93336 1 Patent GB 2262027 (TOSHIBA) disclose~ mean~ for drying Z ~y condensatio~ in a di~hwasher having a vertical wall 3 along which a circulation of moist hot air coming ~rom the 4 wa~hi~g ba~in, with a ~heet of cold water ta~en from the S outside water-distribution network passing over said 6 vertical wall. The temperature dif~erence between the 7 surfaces of said vertical wall and the flow of moist hot 8 air that is blown so as to contact said wall aa~se 9 condensation of the ~oisture in the air.
ln This solution is certainly adequate and even very 11 effic$ent for energetic drying of the air; however, it has 12 the great inconvenience o~ requiring a significan~
13 additional consumption of water ~rom the water network as a 14 mean~ of cooling, and this fact is in direct opposition to the requirement and efforts of manufacturers of dishwashers 16 to offer products on the market that need ever le~s wate~, 17 energy, and detergent~ and accessories in order to ~unction 18 correctly and ~till provide sati6fa~to~y ~ervices.
19 The solution disclo~ed in patent DE 39 38 170 tSanyo Electric Co.) ~ses a single dual-purpose fan, which 21 certainly reduces the complexity and the cost o~ the 22 device; however, as with the patent~ already mentioned, it 23 repeats their inconvenience6 ~ including the ~act that the 24 flows of moist hot air ~rom the cooling and o~ cooling air are in parallel currents and that the ~an and the motor ar~
26 arranged behind the basin, reducing the u~able volume 27 the~e.
28 Moreover, the use of the dual-purpose fan, with the 29 necessity o~ limited interspaces for play be~ween the blade~ of the fan and the two di~tinct air-flow channels, 31 makes ~t inevitable that moist air is drawn to the outsid~
32 o~ the mac~ine, which is something that i8 desirable to 33 avoid.
34 Patent DE GM oo z6 939.2 disclo~e~ a type of household dish~asher provided with a condensation ~ystem ~or moist 36 air that only make~ the air circulate in a conduit external 37 ~o the ba~in in which the condensation occurs by a heat 1 eYch~e wit~ the adjacent side walls of the cabin~t.
2 In thi~ case too, the inconvenience~ of weak cooling 3 action and therefore of cond~nsation a~e ob6erved, whic~
4 ~hould in fact be reinforced by activation o~ a cooling of the air in thi~ conduit. In practice there i8 a c_ n 6 electrical re~istance, which increaseG the temperature 7 di~ference in the air between the two end6 of ~aid conduit.
8 However, thi~ contrivance worsen~ energy conYumption and 9 ~ake~ the machine more complicated, more costly, and also more delicate in u6e.
11 BRIE~ SUMMARY OF THE INVENTION
12 It would there~ore be desirable, and is the goal o~
13 the present inven~ion, to make di6hwashers provided with 14 mean~ for drying by condensation of the moi~t air t~at are ~unctionally e~ficien~, ~imple, and require only min~mal 16 consumption of supplementary energy.
17 BRIEF DEscRIPTION OF TI~E SE~ERAL VIEWS OF THE DRAWING
18 The invention will be understood better by mean~ o~
19 the following de~cription, whlc~ is given only by way of a non-limiting example, and with reference to the attached 21 diagrams, in which:
22 Fig. 1 ~hows schematically a main diagram, viewed from 23 the side, of a dishwasher having a condensation device 24 according to the invention;
F~gs. 2 and 3 ahow separately two sub-as~emblie~ o~
26 the invention, which a~e assem~led in sequence;
27 Fig. 4 ~hows a perspective view, partially cut away, z8 of the device acaording to the invention; and 29 Figures 5 and 6, respectively, show a horizontal and 30 vertical section of the device of Fig. 4 taken from lines 31 5-5 and 6-6, respectively.
21 9333~
DESCRIPTION OF ~HE ~:~V~;N l ~ON
2 In the following description, the torm "air" will be 3 used as equivalent to the term "moist hot air," but the use 4 of one ter~ or the other does not affect the clarity of the presentation, given the context in which these term6 are 6 used, as will be evident to an expert in the field.
7 As shown in Fig. l, The invention includes a flr~t 8 vertical conduit 1 and a second conduit 2, essentially g perpendicular to the flr6t conduit. The fir~t conduit 1 is connected to the interior of the ~a~in by means of upper 11 and lower opening~ 3 and 4, respectively, located at 12 corresponding end part6 of the fir~t conduit.
13 A first motorized fan 5 i8 suitable for a~piratlng 14 air in th~ough the upper opening 3 and is located near the lower opening 4. The second conduit 2 is open at its end~, 16 wit~ a co~responding a~piration ~ntake 55 and di6charge 17 outlet 6, both of which open to thQ out~ide. A second 18 motorized fan 7, ~uitable for making air taken ~rom the 19 out~ide circulate through said second conduit i6 located near the a~plration intake 55.
21 Referring also to Figs. 2 through 6, the first and 22 second conduits intersect in a heat exchanger 8, made 23 8ub~tantially so as to have ~e~eral first parallel channel~
24 9 inserted in the fi~t conduit in such a way that the entire air flow of said fir6t conduit ifi completely divided ~6 among said fir~t channels. The first channel~ are 27 ~eparated from each other by interspaces lo, in which 28 second parallel channels 11 are fitted. The second 29 channels 11 are inserted into said second conduit in such a way that the internal air flow of sald s~cond co~duit i~
31 divided among three second channels. The heat exchanger i6 32 configured so that the fir~t channels Y and the second 33 channels 11 are arranged in perpendicular direction~.
34 Conden~ate produced ~y the moist ai~ that flows through 6aid first channels descends or falls through a 36 final ~egment 20 of ~aid fir~t conduit downstream from ~aid ~ 21 q3336 1 heat exc~anger by gravity into the basin through the lower 2 opening 4, which i~ placed in a po6ition underneath the 3 position of said exchanger.
4 The advantage of this config~ration cau~ing division of the air flow~ i~ that the area of the heat exchange i~
6 increased enormou~ly without ~ignificantly ~ncreasing the 7 volume or the dimen~ions o~ the heat exchanger. ~hi~
8 configuration, together with the fact that the flow~ are g perpendlcular, signiflcantly improvQ~ the efficiency of the heat exchanger, a6 demonstrated in numerous laboratory 11 test~. A simpli~ied version of this type of ~rh~Anger 12 uses a single pair of chann~l~, one for the cooling a~r and 13 one for the moist air to be dried, but this solution 14 provide~ less efficiency in the heat excha~ge.
Even though these channels can have cross-sections o~
16 various ~hape~ and need not be pa~ticularly elongated, a 17 preferred configuration i9 illustrated in the diagrams, in 18 particular in Figures 2 and 3. A~ ~hown, the first ls parallel channels g have a highly elongated rectangular cross-section and with ~imilar dimensions, arranged side by 21 side, but ~eparated from each other by corresponding 22 inter~pace~ lo, similar to the second parallel channel~ ll, 23 which a~e placed between the interepace~ that ~eparate the 24 first parallel channel~. Thi~ kind of con~iguration inC~ease~ the areas that are side by side each other and a 6 thereby increa~es the heat exchange.
27 The invention includes several possible alternatives.
28 ~ir~t, the ~especti~e wall8 13 and 14 of said first and z9 second parallel channels, illustrated separately in Figure~
2 and 3 ~or simplicity, can be ~oined in the construction 31 phase in such a way that a pair of adjacent walls i9 made 32 as a ~ingle physical wall, suitable for defining ~oth 33 channels located on opposite faces of each wall, a~ ~hown 34 in Fig. 4. This permits the production of the exchanger to be simplified and economized and also lmproves the heat 36 eY~hA~ge between ad~acent channels i~ improved.
37 A further alternative, useful because i~ occupie6 th~
_ 21 ~3336 1 18a8t po6sible 6pace, i~ given-by thQ fact that the fan~
2 are motorized by a single motor, to which sUitable coupling 3 device6 are connected. The motor ~its dlrectly onto a 4 shaft of the eecond ~an 7, which i6 placed under the basin.
The motor tran~mits motion to the flr~t fan 5 by mean6 of a 6 suitable belt 16 placed between two ~uitable pulleys 7 mounted on the re~pective fans.
8 The motor i8 also positioned in such a way as not to 9 be exposed to the cold air aspirated from the outside, because otherwise the heat relea~ed during it~ operation 11 would heat thi~ cooling air, significantly reducing its 12 capaclty to aondense hot moi6t ai~.
~3 In order to favor passage of the cooling alr into sald 14 ~econd conduit, the intake 55 and outlet 6 are a~ra~ged in two opposite d~rections, pre~erably one on the front 17 and 16 the other on the back 18.
11 Although the invention as been de6cribed with the 18 example of the preferred embodiment and with a known 19 terminology, thi~ i8 ~ot considered limiting, because an expert in the field can apply numerou~ variations to it.
Claims (14)
1. A dishwasher provided with an outer cabinet, a washing basin, and a device for drying moist air contained in said basin by condensation, comprising:
a first conduit (1) disposed outside said basin and communicating with an inside of said basin through an aperture provided at each end of the conduit, wherein the first aperture (3) opens into an upper portion of said basin and the second aperture (4) opens into a corresponding lower portion of said basin;
a first fan (5) disposed in the first conduit (1) and suitable for aspirating an air flow through the upper aperture and expelling the air through the lower aperture;
a second conduit (2) suitable for aspirating an air flow taken from outside said basin through a suitable aspiration intake (55) and expelling the air to the outside through a discharge opening (6);
a second fan (7) placed in an intermediate position in the second conduit and creating said flow through said second conduit; and a heat-exchange device (8) between the first conduit and the second conduit, characterized by the fact that said heat-exchange device is made in such a way that the flow in said first conduit and the flow in said second conduit are arranged in mutually perpendicular directions when flowing through the heat-exchange device.
a first conduit (1) disposed outside said basin and communicating with an inside of said basin through an aperture provided at each end of the conduit, wherein the first aperture (3) opens into an upper portion of said basin and the second aperture (4) opens into a corresponding lower portion of said basin;
a first fan (5) disposed in the first conduit (1) and suitable for aspirating an air flow through the upper aperture and expelling the air through the lower aperture;
a second conduit (2) suitable for aspirating an air flow taken from outside said basin through a suitable aspiration intake (55) and expelling the air to the outside through a discharge opening (6);
a second fan (7) placed in an intermediate position in the second conduit and creating said flow through said second conduit; and a heat-exchange device (8) between the first conduit and the second conduit, characterized by the fact that said heat-exchange device is made in such a way that the flow in said first conduit and the flow in said second conduit are arranged in mutually perpendicular directions when flowing through the heat-exchange device.
2. A dishwasher according to claim 1, characterized by the fact that said heat-exchange device is placed in an interspace between said basin and a side wall of the outer cabinet.
3. A dishwasher according to claim 2, characterized by the fact that said heat-exchange device includes first parallel channels (9) each having an elongated rectangular cross-section with similar dimensions to each other, arranged side by side and mutually separated by corresponding interspaces (10); and second parallel channels (11) each having an elongated rectangular cross-section and with similar dimensions to each other, wherein said second channels are arranged in said interspaces (10) that separate the said first parallel channels.
4. A dishwasher according to claim 3, characterized by the fact that walls (13, 14) that delimit and separate said first channels from said second channels are single walls and common to each pair of adjacent channels.
5. A dishwasher according to claim 4, characterized by the fact that said fans are driven by a single motor that transmits rotary motion from its own rotation shaft to rotation shafts of the corresponding fans by coupling means, and that said motor is placed substantially under said basin.
6. A dishwasher according to claim 5, characterized by the fact that said motor is directly fitted onto the shaft of the second fan, which transmits the motion to said first fan by means of a belt (16) placed between two pulleys mounted on said corresponding fans.
7. A dishwasher according to claim 1, characterized by the fact that said motor is protected from air flow of the second fan (7), so that said air flow is not heated by heat released by said motor.
8. A dishwasher according to claim 1, characterized by the fact that the aspiration intake (55) and the discharge opening (6) of said second conduit are placed respectively in the front (17) and back (18) of said cabinet.
9. A dishwasher according to claim 1, characterized by the fact that said heat-exchange device includes first parallel channels (9) each having an elongated rectangular cross-section with similar dimensions to each other, arranged side by side and mutually separated by corresponding interspaces (10); and second parallel channels (11) each having a highly elongated rectangular cross-section and with similar dimensions to each other, wherein said second channels are arranged in said interspaces (10) that separate the said first parallel channels.
10. A dishwasher according to claim 9, characterized by the fact that walls (13, 14) that delimit and separate said first channels from said second channels are single walls and common to each pair of adjacent channels.
11. A dishwasher according to claim 10, characterized by the fact that said fans are driven by a single motor that transmits rotary motion from its own rotation shaft to rotation shafts of the corresponding fans by coupling means, and that said motor is placed substantially under said basin.
12. A dishwasher according to claim 11, characterized by the fact that said motor is directly fitted onto the shaft of the second fan, which transmits the motion to said first fan by means of a belt (16) placed between two pulleys mounted on said corresponding fans.
13. A dishwasher according to claim 3, characterized by the fact that said motor is protected from air flow of the second fan (7), so that said air flow is not heated by heat released by said motor.
14. A dishwasher according to claim 3, characterized by the fact that the aspiration intake (55) and the discharge opening (6) of said second conduit are placed respectively in the front (17) and back (18) of said cabinet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPN950049 IT238875Y1 (en) | 1995-12-19 | 1995-12-19 | DISHWASHER WITH PERFECT DRYING DEVICE FOR CONDENSATION |
| IT95U000049 | 1995-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2193336A1 true CA2193336A1 (en) | 1997-06-20 |
Family
ID=11395067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2193336 Abandoned CA2193336A1 (en) | 1995-12-19 | 1996-12-18 | Dishwasher with improved device for drying by condensation |
Country Status (6)
| Country | Link |
|---|---|
| CA (1) | CA2193336A1 (en) |
| DE (1) | DE29621351U1 (en) |
| ES (1) | ES1035691Y (en) |
| FR (1) | FR2742329B3 (en) |
| GB (1) | GB2308431A (en) |
| IT (1) | IT238875Y1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108209831A (en) * | 2018-01-17 | 2018-06-29 | 佛山市顺德区美的洗涤电器制造有限公司 | For the drying device and dish-washing machine of dish-washing machine |
| WO2019141187A1 (en) * | 2018-01-17 | 2019-07-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Drying device for dishwasher and dishwasher |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19946456A1 (en) * | 1999-09-28 | 2001-04-05 | Bsh Bosch Siemens Hausgeraete | Domestic dishwasher has fan in door above heat exchanger to suck moist and fresh air from near upper part of door and force moist air and fresh air horizontally through heat exchanger |
| IT247109Y1 (en) * | 1999-11-02 | 2002-05-02 | Candy Spa | STEAM CONDENSING CHAMBER FOR DISHWASHER MACHINES |
| DE10023346A1 (en) * | 2000-05-12 | 2001-11-15 | Diehl Ako Stiftung Gmbh & Co | Dishwasher crockery dryer has heat exchanger surface on which washing chamber air condenses; condensate passes to temporary store connected to water carrying, washing chambers |
| US8696824B2 (en) | 2009-02-04 | 2014-04-15 | Electrolux Home Products, Inc. | Dishwasher, a door assembly for the dishwasher, and an associated method for drying dishware |
| US10295256B2 (en) | 2009-02-04 | 2019-05-21 | Electrolux Home Products, Inc. | Dishwasher, a door assembly for the dishwasher, and an associated method for drying dishware |
| CN107149452B (en) * | 2016-03-03 | 2020-08-07 | 三花亚威科电器设备（芜湖）有限公司 | Dish washer with drying system |
| US9943211B2 (en) | 2016-04-06 | 2018-04-17 | Whirlpool Corporation | Dishwasher with condensing drying system |
| CN108113618A (en) * | 2018-01-10 | 2018-06-05 | 佛山市顺德区美的洗涤电器制造有限公司 | Irradiation modules and with its dish-washing machine |
| CN108078528B (en) * | 2018-01-17 | 2023-09-15 | 佛山市顺德区美的洗涤电器制造有限公司 | Drying device for dish-washing machine and dish-washing machine |
| KR102527575B1 (en) * | 2018-02-08 | 2023-04-28 | 엘지전자 주식회사 | Dish Washer |
| KR102511843B1 (en) | 2018-02-09 | 2023-03-20 | 엘지전자 주식회사 | Dish Washer |
| CN108567394A (en) * | 2018-06-21 | 2018-09-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Air draft component and dish-washing machine for dish-washing machine |
| KR20220053424A (en) * | 2020-10-22 | 2022-04-29 | 엘지전자 주식회사 | Dishwasher |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2831932A1 (en) * | 1978-07-20 | 1980-02-07 | Licentia Gmbh | LAUNDRY TREATMENT MACHINE |
| DE3027900C2 (en) * | 1980-07-23 | 1986-11-06 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Air-cooled heat exchanger for household tumble dryers |
| JPS5846997A (en) * | 1981-09-16 | 1983-03-18 | 株式会社東芝 | Dryer |
| JPS5861797A (en) * | 1981-10-09 | 1983-04-12 | 株式会社東芝 | Dryer |
| DE8318395U1 (en) * | 1983-06-24 | 1983-10-20 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | HOUSEHOLD LAUNDRY DRYER |
-
1995
- 1995-12-19 IT ITPN950049 patent/IT238875Y1/en active IP Right Grant
-
1996
- 1996-11-22 ES ES9602998U patent/ES1035691Y/en not_active Expired - Lifetime
- 1996-12-04 GB GB9625180A patent/GB2308431A/en not_active Withdrawn
- 1996-12-09 DE DE29621351U patent/DE29621351U1/en not_active Expired - Lifetime
- 1996-12-18 CA CA 2193336 patent/CA2193336A1/en not_active Abandoned
- 1996-12-18 FR FR9615565A patent/FR2742329B3/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108209831A (en) * | 2018-01-17 | 2018-06-29 | 佛山市顺德区美的洗涤电器制造有限公司 | For the drying device and dish-washing machine of dish-washing machine |
| WO2019141187A1 (en) * | 2018-01-17 | 2019-07-25 | 佛山市顺德区美的洗涤电器制造有限公司 | Drying device for dishwasher and dishwasher |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2742329B3 (en) | 1997-10-17 |
| DE29621351U1 (en) | 1997-02-06 |
| GB2308431A (en) | 1997-06-25 |
| IT238875Y1 (en) | 2000-11-15 |
| ITPN950049U1 (en) | 1997-06-19 |
| FR2742329A3 (en) | 1997-06-20 |
| ES1035691Y (en) | 1997-11-16 |
| GB9625180D0 (en) | 1997-01-22 |
| ES1035691U (en) | 1997-05-16 |
| ITPN950049V0 (en) | 1995-12-19 |
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