Technical Field
[0001] The present disclosure relates to a dishwasher having a washing tub comprising a
first and a second wall. A detergent dispenser is arranged on the first wall.
Background
[0002] In conventional dishwashers the dispenser is provided with an activation device,
which guarantees that all detergent is rinsed out during the wash program. The device
is activated when the front portion of the dishwasher is closed properly.
[0003] This type of device can not be used in drawer dishwashers since the drawer front
wall is always in a substantially vertical position.
[0004] In order to maximize the amount of objects that can be washed in a dishwasher, there
is a general need for space saving measures in respect of the arrangement of the functional
components of the dishwasher.
[0005] Hence, there is a need for a different arrangement for the purpose of rinsing out
detergent from the dispenser of a dishwasher and which arrangement takes up little
space.
[0006] US 6,244,277 shows a prior art drawer dishwasher. The drawer dishwasher has a detergent dispenser
arranged in one of the walls of the washing chamber. At least one water outlet nozzle
is arranged in the same wall as the dispenser and directed towards the dispenser to
facilitate the rinsing out of detergent. The invention according to
US 6,244,277 is adapted for use in an arrangement with two wash chambers and with the purpose
of re-use rinsing water from the first wash chamber to the second wash chamber, therefore
an arrangement according to
US 6,244,277 requires a lot of special adapted components.
[0007] WO 2006/069827 shows a conventional dishwasher comprising a crockery basket which is arranged in
a washing container and receives washable items and a cleaner dispensing chamber which
is disposed in the wall or door of the washing container and dispenses the cleaner
there inside. Guiding devices are mounted in front of the crockery basket for deviating
a water jet, which is directed to the crockery basket, towards the dispensing chamber.
The water jet derive both from a spray arm arranged under the crockery basket and
from a nozzle arranged in the ceiling of the washing container.
[0008] An arrangement according to
WO 2006/069827 require a special adapted dispensing chamber which is totally uncovered in opened
position. Further, the guides who are arranged on the crockery basket takes up some
space from the washing container.
[0009] Compared to the prior art arrangements there is still a need for a different arrangement
for the purpose of rinsing out detergent from the dispenser of a dishwasher drawer,
which arrangement takes up a little space and which arrangement requires a minimum
of special adapted components.
Summary
[0010] In order to solve the above problems a dishwasher according to the preamble of claim
1 is provided and which is
characterized in that a water inlet is arranged on the second wall, wherein the water inlet is arranged
to provide a water jet directed towards the detergent dispenser for rinsing out detergent
from the dispenser, and wherein the water inlet is so arranged that the water jet
is guided towards the detergent dispenser by a third limiting surface of the washing
tub.
[0011] By arranging the water inlet and the detergent dispenser on different sides of the
washing tub and arranging the water jet to be guided by a third limiting surface of
the washing tub, an arrangement that takes a little space from the washing tub is
provided. The arrangement further allows additional wetting to the objects to be washed,
in addition to the water from a conventional sprinkler. Hence, at a high water jet
spillage water from the water jet is obtained.
[0012] By providing a dishwasher wherein the detergent dispenser is arranged on a front
wall of the washing tub and the water inlet is arranged on a rear wall of the washing
tub, it is easy to reach the detergent dispenser when adding detergent to the dispenser.
[0013] By providing a dishwasher wherein the water jet from the water inlet on the rear
wall of the washing tub is guided towards the detergent dispenser on the front wall
of the washing tub via a ceiling of the washing tub, no space demanding guiding arrangement
is needed.
[0014] By providing at least one guiding rib on the inside of the ceiling, for guiding and
focusing the water jet towards the detergent dispenser, an effective guiding arrangement
is provided that hardly takes any space from the washing tub.
[0015] By providing at least two guiding ribs that are arranged as two elongated ribs with
a front end each, arranged upstreams in relation to the direction of the water jet,
and a rear end each, arranged downstreams in the direction of the water jet, and wherein
the space between the ribs decreases from the rear of the ribs end towards the front
end of the ribs.
[0016] The water jet is focused towards the detergent dispenser in a very effective way.
[0017] By providing a deflection arrangement on the inside of the ceiling, for deflecting
the water jet from the ceiling downwards, towards the detergent dispenser yet another
effective arrangement for guiding the water jet towards the detergent dispenser is
provided. The deflection arrangement also prevents the water jet from sprinkle towards
the sealing between the washing tub and the ceiling of the washing tub and thereby,
unnecessarily, exposing the sealing to a lot of water.
[0018] By providing an arrangement wherein the water inlet is connected to an outlet of
a main circulation pump of the dishwasher the already existing components are used
to provide an effective arrangement for rinsing out detergent from the detergent dispenser.
By using already existing components an arrangement that takes little space is provided.
[0019] By providing an arrangement wherein the water inlet is connected to a ventilation
outlet of the main circulation pump, spillage water is used, and that provides an
environment friendly arrangement.
[0020] By arranging the water jet to sprinkle intermittently during a washing program of
the dishwasher, the amount of water that is drawn from the pump can be apportioned
during the wash program and applied to the dishwasher when it is needed the most.
By this arrangement less water is needed during the wash program and a more environment
friendly dishwasher is provided.
[0021] An arrangement according to the invention can with advantage be provided in a drawer
dishwasher.
Brief Description of the Drawings
[0022]
Fig 1 schematically illustrates a perspective view of a tub of a dishwasher with an
arrangement according to claim 1.
Fig 2 schematically illustrates a cross section of a side view of dishwasher drawer
with an arrangement according to the invention.
Fig 3 schematically illustrates section X-X of fig 2 seen from below.
Description of Embodiments
[0023] Fig 1 illustrates a dishwasher drawer 1, having a conventional washing tub 2. An
arrangement according to the invention can with advantage be provided in a drawer
dishwasher, but can also be used for conventional dishwashers.
[0024] In one embodiment of the invention the drawer 1 and the washing tub 2 are the same
unit.
[0025] The washing tub 2 has a front wall 3, a rear wall 4 and a ceiling 5 (see Fig 2).
The washing tub 2 and the ceiling 5 are with advantage made of rigid plastic, or that
like.
[0026] The ceiling 5 and the upper edge of the washing tub are in an engagement position
when the dishwasher is closed and during the wash program. A sealing device (not shown)
can with advantage be provided between the ceiling 5 and the washing tub 2 to prevent
the risk of leakage.
[0027] A dispenser 6 for receiving detergent, such as e.g. powder, tablets and liquid detergent
etc., is arranged on the inside of a first wall 3.
[0028] In one embodiment of the invention the first wall 3 is the front wall 3 of the washing
tub 2. The dispenser 6 is arranged on the upper part of the front wall 3. Therefore
there is a small distance between the detergent dispenser 6 and the ceiling 5. Different
types of detergent dispensers of conventional type can be used in the dishwasher according
to the invention. A detergent dispenser with a shutter that is opened during the wash
program is with advantage used.
[0029] A water inlet 7 is arranged on the second wall 4 of the washing tub.
[0030] In one embodiment of the invention the second wall 4 is the rear wall 4 of the washing
tub 2.
[0031] The water inlet 7 is connected to an outlet of a main circulation pump 9 of the dishwasher.
More particularly the water inlet is connected to a ventilation outlet of the main
circulation pump 9. When air is drawn through the pump 9 of the dishwasher, it is
ventilated through a ventilation device 10, and when only water is drawn, a water
jet 8 is provided through the ventilation device 10. The water jet 8 is guided through
the ventilation device 10. The ventilation device 10 consists of a substantially vertical
tube. The tube 10 is guided on the backside of the second wall 4 and attached to a
water inlet 7 provided in the upper part of the second wall 4.
[0032] A nozzle 11 is arranged to the water inlet 7 and attached on the inside of the rear
wall 4 of the washing tub 2. The nozzle 11 has with advantage a spherical shape and
is provided with a hole through which the water jet emerges.
[0033] The nozzle is so arranged that the water jet 8 is guided towards the detergent dispenser
6 by a third limiting surface 5 of the washing tub 2.
[0034] In one embodiment of the invention the third limiting surface 5 of the washing tub
is the ceiling 5 of the washing tub 2.
[0035] The nozzle 11 is arranged on the inside of the rear wall 4, to direct the water jet
8 towards the dispenser 6 in order to rinse out detergent.
[0036] The nozzle 11 is locked in a specific position, so that the water jet 8 always hits
the ceiling 5 with the same angle. Parameters that effects the water jet 8 and how
it ends up right are; the angle X with which the water jet hits the ceiling 5; the
amount of water from the pump 9; and the water pressure of the water jet 8. By setting
these parameters a well-directed water jet 8 towards the detergent dispenser 6 is
provided.
[0037] At least one guiding rib 12 is arranged on the inside of the ceiling 5, for guiding
and focusing the water jet 8 towards the detergent dispenser 6. The rib has a front
end arranged upstreams in relation to the direction of the water jet 8, and a rear
end arranged downstreams in the direction of the water jet 8.
[0038] In one embodiment of the invention at least two guiding ribs 12 are arranged as two
elongated ribs, see fig 3. The ribs 12 are arranged in a direction along the direction
of the water jet 8. The space between the ribs 12 decreases from the rear end of the
ribs 12 towards the front end of the ribs 12, see fig 3.
[0039] A deflection arrangement 13 is arranged on the inside of the ceiling 5, for deflecting
the water jet from the ceiling 5 downwards and towards the detergent dispenser 6.
[0040] As a result of the small distance between the detergent dispenser 6 and the ceiling
5 the water jet would hit the sealing between the ceiling 5 and the upper edge of
the washing tub 2 and thereby unnecessarily, expose the sealing to a lot of water.
By arranging a deflecting arrangement 13 according to the invention this is prevented.
[0041] In one embodiment of the invention the ribs 12 and the deflecting arrangement 13
are moulded of the same material as the ceiling 5 and represents a part of the ceiling
5.
[0042] In one embodiment of the invention the water jet 8 - sprinkles continuously, in pulses,
during the washing program of the dishwasher. At a high pulse, spillage water is obtained
from the water jet 8. The spillage water can be used to provide additional wetting
to the objects to be washed, in addition to the water from a conventional sprinkler
(not shown) arranged in the bottom of the washing space.
[0043] In one embodiment of the invention the water jet 8 is arranged to sprinkle intermittently
during a washing program of the dishwasher.
[0044] In one embodiment of the invention the washing tub 2 is arranged in a drawer of a
drawer dishwasher. Typical drawer dishwashers comprise two such drawers, arranged
on top of each other. However, configurations with one or more drawers are contemplated.
In an arrangement in a drawer dishwasher the ceiling 5 is the lid of the drawer.
[0045] In the drawings and specification, there have been disclosed preferred embodiments
and examples of the invention and, although specific terms are employed, they are
used in a generic and descriptive sense only and not for the purpose of limitation,
the scope of the invention being set forth in the following claims.
1. A dishwasher having a washing tub (2) comprising:
a first (3) and a second (4) wall, and a detergent dispenser (6) arranged on the first
wall (3), wherein
a water inlet (7) is arranged on the second wall (4) and wherein the water inlet (7)
is arranged to provide a water jet (8) directed towards the detergent dispenser (6)
for rinsing out detergent from the dispenser (6), characterized in that the water inlet (7) is so arranged that the water jet (8) is guided towards the detergent
dispenser (6) by a third limiting surface (5) of the washing tub (2).
2. The dishwasher as claimed in claim 1, wherein the first wall (3) is an internal, rear
wall of the washing tub (2) and the second wall (4) is an internal, front wall of
the washing tub (2).
3. The dishwasher as claimed in claim 1 or 2, wherein the third limiting surface (5)
of the washing tub (2) is a ceiling (5) of the washing tub (2).
4. The dishwasher as claimed in claim 3, wherein at least one guiding rib (12) is arranged
on the inside of the ceiling (5), for guiding and focusing the water jet (8) towards
the detergent dispenser (6).
5. The dishwasher as claimed in claim 4, wherein at least two guiding ribs (12) are arranged
as two elongated ribs with a front end each, arranged upstreams in relation to the
direction of the water jet (8), and a rear end each, arranged downstreams in the direction
of the water jet (8), and wherein the space between the ribs (12) decreases from the
rear of the ribs (12) end towards the front end of the ribs (12).
6. The dishwasher as claimed in any of claims 3-5, wherein a deflection arrangement (13)
is arranged on the inside of the ceiling (5), for deflecting the water jet from the
ceiling (5) downwards and towards the detergent dispenser (6).
7. The dishwasher as claimed in any one of the preceding claims, wherein the water inlet
(7) is connected to an outlet of a main circulation pump (9) of the dishwasher.
8. The dishwasher as claimed in claim 7, wherein the water inlet (7) is connected to
a ventilation outlet of the main circulation pump (9).
9. The dishwasher as claimed in any one of the preceding claims, wherein the water jet
(8) is arranged to sprinkle intermittently during a washing program of the dishwasher.
10. The dishwasher as claimed in any one of the preceding claims, wherein the dishwasher
is a drawer dishwasher.
1. Geschirrspüler mit einem Spülbottich (2), umfassend:
eine erste (3) und eine zweite (4) Wand sowie einen Spülmittelspender (6), der auf
der ersten Wand (3) angeordnet ist, wobei ein Wassereinlass (7) auf der zweiten Wand
(4) angeordnet ist, und wobei der Wassereinlass (7) so ausgelegt ist, dass er einen
Wasserstrahl (8) bereitstellt, der zum Ausspülen von Spülmittel aus dem Spender (6)
in Richtung des Spülmittelspenders (6) gerichtet ist, dadurch gekennzeichnet, dass der Wassereinlass (7) so ausgelegt ist, dass der Wasserstrahl (8) durch eine dritte
Begrenzungsfläche (5) des Spülbottichs (2) zum Spülmittelspender (6) geführt wird.
2. Geschirrspüler nach Anspruch 1, wobei die erste Wand (3) eine innere, hintere Wand
des Spülbottichs (2) ist, und die zweite Wand (4) eine innere, vordere Wand des Spülbottichs
(2) ist.
3. Geschirrspüler nach Anspruch 1 oder 2, wobei die dritte Begrenzungsfläche (5) des
Spülbottichs (2) eine Decke (5) des Spülbottichs (2) ist.
4. Geschirrspüler nach Anspruch 3, wobei wenigstens eine Führungsrippe (12) auf der Innenseite
der Decke (5) zum Führen und Konzentrieren des Wasserstrahls (8) zum Spülmittelspender
(6) angeordnet ist.
5. Geschirrspüler nach Anspruch 4, wobei wenigstens zwei Führungsrippen (12) als zwei
längliche Rippen mit jeweils einem vorderen Ende, das stromaufwärts in Bezug auf die
Richtung des Wasserstrahls (8) angeordnet ist, und jeweils einem hinteren Ende angeordnet
sind, das stromabwärts in der Richtung des Wasserstrahls (8) angeordnet ist, und wobei
der Raum zwischen den Rippen (12) vom hinteren Ende der Rippen (12) zum vorderen Ende
der Rippen (12) kleiner wird.
6. Geschirrspüler nach einem der Ansprüche 3 bis 5, wobei eine Ablenkungsanordnung (13)
zum Ablenken des Wasserstrahls von der Decke (5) nach unten in Richtung des Spülmittelspenders
(6) auf der Innenseite der Decke (5) angeordnet ist.
7. Geschirrspüler nach einem der vorhergehenden Ansprüche, wobei der Wassereinlass (7)
mit einem Auslass einer Hauptzirkulationspumpe (9) des Geschirrspülers verbunden ist.
8. Geschirrspüler nach Anspruch 7, wobei der Wassereinlass (7) mit einem Lüftungsauslass
der Hauptzirkulationspumpe (9) verbunden ist.
9. Geschirrspüler nach einem der vorhergehenden Ansprüche, wobei der Wasserstrahl (8)
so ausgelegt ist, dass er während eines Spülprogramms des Geschirrspülers periodisch
spritzt.
10. Geschirrspüler nach einem der vorhergehenden Ansprüche, wobei es sich bei dem Geschirrspüler
um einen Schubladengeschirrspüler handelt.
1. Lave-vaisselle ayant une cuve de lavage (2) comprenant :
une première (3) et une seconde (4) paroi, et un distributeur de lessive (6) agencé
sur la première paroi (3), dans lequel une entrée d'eau (7) est agencée sur la seconde
paroi (4) et dans lequel l'entrée d'eau (7) est agencée pour fournir un jet d'eau
(8) dirigé vers le distributeur de lessive (6) pour enlever la lessive du distributeur
(6), caractérisé en ce que l'entrée d'eau (7) est agencée de sorte que le jet d'eau (8) est guidé vers le distributeur
de lessive (6) par une troisième surface de limitation (5) de la cuve de lavage (2).
2. Lave-vaisselle selon la revendication 1, dans lequel la première paroi (3) est une
paroi arrière interne de la cuve de lavage (2) et la seconde paroi (4) est une paroi
avant interne de la cuve de lavage (2).
3. Lave-vaisselle selon la revendication 1 ou 2, dans lequel la troisième surface de
limitation (5) de la cuve de lavage (2) est un plafond (5) de la cuve de lavage (2).
4. Lave-vaisselle selon la revendication 3, dans lequel au moins une nervure de guidage
(12) est agencée sur l'intérieur du plafond (5), pour guider et concentrer le jet
d'eau (8) vers le distributeur de lessive (6).
5. Lave-vaisselle selon la revendication 4, dans lequel au moins deux nervures de guidage
(12) sont agencées en tant que deux nervures allongées avec une extrémité avant, chacune
en amont par rapport à la direction du jet d'eau (8), et une extrémité arrière, chacune
agencée en aval dans la direction du jet d'eau (8), et dans lequel l'espace entre
les nervures (12) diminue de l'extrémité arrière des nervures vers l'extrémité avant
des nervures (12).
6. Lave-vaisselle selon l'une quelconque des revendications 3 à 5, dans lequel un agencement
de déflexion (13) est agencé sur l'intérieur du plafond (5), pour dévier le jet d'eau
du plafond (5) vers le bas et vers le distributeur de lessive (6).
7. Lave-vaisselle selon l'une quelconque des revendications précédentes, dans lequel
l'entrée d'eau (7) est raccordée à une sortie d'une pompe de circulation principale
(9) du lave-vaisselle.
8. Lave-vaisselle selon la revendication 7, dans lequel l'entrée d'eau (7) est raccordée
à une sortie de ventilation de la pompe de circulation principale (9).
9. Lave-vaisselle selon l'une quelconque des revendications précédentes, dans lequel
le jet d'eau (8) est agencé pour arroser de manière intermittente pendant un programme
de lavage du lave-vaisselle.
10. Lave-vaisselle selon l'une quelconque des revendications précédentes, dans lequel
le lave-vaisselle est un lave-vaisselle à tiroir.