Field of Invention
[0001] The present invention relates to a storage system used in washing devices.
Prior Art
[0002] In washing devices such as laundry washers or dishwashers, washed items are rinsed
following a washing process. The contamination of rinse liquid (e.g. water) is generally
low. Therefore, the rinse water (particularly the final rinse water) is collected
in a reservoir to save water and is used in the next washing process as the first
wash water (e.g. to loosen the dirt of the items to be washed). However, bacterial
growth can take place in water over time as the water collected in the reservoir is
kept until the next washing process. Bacterial growth, in turn, may cause unpleasant
odor to form and get into the interior of the washing device. In the prior art, various
embodiments have been made to prevent this undesired odor. In the embodiments of the
prior art, water collected in the washing device is disinfected using chemical products
or electrical processes. In these embodiments, however, the disinfection process of
stored water is costly.
[0003] In the patent document
EP2283762A2 according to the prior art is disclosed a household appliance wherein wash water
is reused. In said household appliance, wash water is collected in a container and
is used in a further washing process. According to that document, wash water is passed
through an odor trap before it is supplied to the reservoir such that dirt particles
in water are removed. Even when the water cleaned from dirt particles is left standing,
relatively less odor formation takes place as compared to untreated water. However,
since water collected in the container is only physically cleaned in the system disclosed
in that document, unpleasant odors do occur anyway to some extent and reach the interior
of the washing device.
Brief Description of Invention
[0004] The storage system developed according to the present invention is suitable for use
in a washing device provided with at least one body; at least one interior compartment,
which is disposed in the body, into which items to be washed are placed, and in which
wash and rinse cycles are performed; and at least one base wherein wash liquid present
in the interior compartment is collected. The storage system comprises at least one
container to which wash liquid collected at the base is transferred; at least one
transfer line by which the excess of wash liquid transferred to the container is transferred
to said interior compartment once the container is filled; at least one opening by
which the transfer line is opened to the interior compartment; at least one pool disposed
in a part of the transfer line which opens to the container; and at least one channel
extending from the transfer line towards the pool.
[0005] By virtue of the storage system developed according to the present invention, water
used in a wash cycle (e.g. the final wash cycle) of the washing device wherein the
storage system is employed is stored and used in a further washing process. Additionally,
unpleasant odor formed in the container is prevented from getting into the interior
compartment by means of the pool and the channel structure disposed in the storage
system.
Object of Invention
[0006] The object of the present invention is to develop a storage system for storing and
reusing wash liquids in washing devices.
[0007] Another object of the present invention is to develop a storage system by which the
transfer of unpleasant odor is prevented to the interior compartment of the washing
device making use of the storage system.
[0008] A further object of the present invention is to develop a reliable and durable storage
system.
Description of Figures
[0009] Illustrative embodiments of a storage system developed according to the present invention
are illustrated in the accompanying figures described below.
Figure 1 is a perspective view of a washing device wherein a storage device according
to the present invention is used.
Figure 2 is a perspective view of the storage system.
Figure 3 is a perspective view of detail "A" given in figure 2.
Figure 4 is a front cross-sectional view of a container disposed in the storage system.
[0010] The parts in the figures are individually designated as following.
| Washing device |
(M) |
| Body |
(1) |
| Interior compartment |
(2) |
| Base |
(3) |
| Container |
(4) |
| Transfer line |
(5) |
| Opening |
(6) |
| Pump |
(7) |
| Pool |
(8) |
| Channel |
(9) |
Description of Invention
[0011] Washing devices such as dishwashers or laundry washers may comprise a storage container
to save wash water. The storage container collects particularly the final rinse liquid
(e.g. rinse water) so that the collected water can be used in the next washing process.
The water collected in the storage container in such washing devices forms unpleasant
odors over time. The unpleasant odor reaches the interior of the washing device and
annoys the user. Accordingly, a storage system is developed according to the present
invention by which the odor of water collected in the storage container is prevented
from getting into the interior of the washing device.
[0012] The storage system developed according to the present invention and illustrated in
figures 2-4 is suitable for use in a washing device (M) illustrated in figure 1 and
provided with at least one body (1); at least one interior compartment (2), which
is disposed in the body (1), into which items to be washed are placed, and in which
wash and rinse cycles are performed; and at least one base (3) wherein the wash liquid
present in the interior compartment (2) is collected. The storage system comprises
at least one container (4) to which the wash liquid collected at the base (3) is transferred;
at least one transfer line (5) by which the excess of the wash liquid transferred
to the container (4) is transferred to said interior compartment (2) once the container
is filled; at least one opening (6) by which the transfer line (5) is opened to the
interior compartment (2); at least one pool (8), preferably with an "U" shape, disposed
in a part of the transfer line (5) which opens to the container (4); and at least
one channel (9) extending from the transfer line (5) towards the pool (8). In representative
embodiments of the present invention wherein the washing device (M) is e.g. a dishwasher,
the base (3) corresponds to the basin of the dishwasher. In another representative
embodiment wherein the washing device (M) is a laundry washer, the base (3) corresponds
to the tub of the laundry washer.
[0013] In a representative embodiment according to the present invention, preferably the
rinse water of the washing device (M) is taken from the base (3) of the interior compartment
(2) and supplied to the container (4). No water inlet takes place into the pool (8)
until the water supplied to the container (4) comes to a defined level. When the water
in the container (4) reaches the defined level (e.g. exceeds an upper level of the
pool (8)), the pool (8) starts filling with water. Preferably when the container (4)
is completely filled with water, the excess of water supplied to the container (4)
is delivered via the pool (8) and the channel (9) to the transfer line (5). Excess
water reaches the opening (6) through the transfer line (5) and supplied to the interior
compartment (2). When delivery of water to the container (4) is stopped, some amount
of water is left in the pool (8) as illustrated in figure 4. Water left in the pool
(8) forms a water trap between the container (4) and the transfer line (5). The water
trap, in turn, prevents air flow from the container (4) to the transfer line (5).
Thus, even if the water collected in the container (4) produces unpleasant odor over
time, this odor is not transferred to the transfer line (5). Thus, the transfer of
undesired odors into the interior compartment (2) of the washing device (M) is prevented.
Additionally, since no moving parts are comprised in the storage system developed
according to the present invention which may be damaged in time, the storage system
is made reliable and durable.
[0014] In an alternative embodiment according to the present invention, the storage system
comprises at least one pump (7) for transferring the wash liquid collected at the
base (3) to the container (4). The pump (7) may be special to the storage system,
or may be a drainage pump which is already disposed in the washing device (M) and
the outlet of which may be controlled.
[0015] In a further alternative embodiment according to the present invention, the storage
system comprises at least one check valve (not illustrated in the figures) which is
preferably situated at a part of the transfer line (5) which connects to the channel
(9), which has one side opening to the transfer line (5) and another side opening
to the exterior, which allows air flow from the exterior to the transfer line (5)
and prevents air and/or liquid flow from the transfer line (5) to the exterior. By
virtue of the check valve, it is prevented that the entire wash liquid in the pool
(8) is supplied to the transfer line (5) by siphon effect particularly in embodiments
wherein the height of the opening (6) is lower as compared to the pool (8).
[0016] By virtue of the storage system developed according to the present invention, the
water used in a wash cycle (e.g. the final wash cycle) of the washing device (M) wherein
the storage system is employed is stored and used in a further washing process. Additionally,
unpleasant odor formed in the container (4) is prevented from getting into the interior
compartment (2) by means of the pool (8) and the channel (9) structure disposed in
the storage system.
1. A storage system suitable for use in a washing device (M) provided with at least one
body (1); at least one interior compartment (2), which is disposed in the body (1),
into which items to be washed are placed, and in which wash and rinse cycles are performed;
and at least one base (3) wherein wash liquid present in the interior compartment
(2) is collected,
characterized by comprising
- at least one container (4) to which the wash liquid collected at the base (3) is
transferred;
- at least one transfer line (5) by which the excess of the wash liquid transferred
to the container (4) is transferred to said interior compartment (2) once the container
is filled;
- at least one opening (6) by which the transfer line (5) is opened to the interior
compartment (2);
- at least one pool (8) disposed in a part of the transfer line (5) which opens to
the container (4); and
- at least one channel (9) extending from the transfer line (5) towards the pool (8).
2. The storage system according to claim 1, characterized in that the pool (8) has a "U" shape.
3. The storage system according to claim 1, characterized in that the washing device (M) is a dishwasher.
4. The washing device according to claim 3, characterized in that the base (3) is in the form of a basin.
5. The storage system according to claim 1, characterized in that the washing device (M) is a laundry washer.
6. The washing device according to claim 5, characterized in that the base (3) is in the form of a tub.
7. The storage system according to claim 1, characterized by comprising at least one pump (7) for transferring the wash liquid collected at the
base (3) to the container (4).
8. The storage system according to claim 7, characterized in that the pump (7) is specially configured for the storage system.
9. The storage system according to claim 7, characterized in that the pump (7) is a drainage pump which is already disposed in the washing device (M)
and the outlet of which may be controlled.
10. The storage system according to claim 1, characterized by comprising at least one check valve which is situated in the transfer line (5), which
has one side opening to the transfer line (5) and another side opening to the exterior,
which allows air flow from the exterior to the transfer line (5) and prevents air
and/or liquid flow from the transfer line (5) to the exterior.
11. The storage system according to claim 10, characterized in that the check valve is situated at a part of the transfer line (5) which connects to
the channel (8).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description