EP1970481B1 - Overflow detection apparatus - Google Patents
Overflow detection apparatus Download PDFInfo
- Publication number
- EP1970481B1 EP1970481B1 EP07104156A EP07104156A EP1970481B1 EP 1970481 B1 EP1970481 B1 EP 1970481B1 EP 07104156 A EP07104156 A EP 07104156A EP 07104156 A EP07104156 A EP 07104156A EP 1970481 B1 EP1970481 B1 EP 1970481B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pool
- float
- water
- cap
- switch
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000005406 washing Methods 0.000 claims abstract description 7
- 230000001960 triggered effect Effects 0.000 claims abstract description 5
- 230000003111 delayed effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/081—Safety arrangements for preventing water damage
-
- 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 invention relates to an overflow detector used for the detection of the water that overflows in washing machines or leaks out from the hydraulic connections thereof.
- the filling water lifts the internal float to which it applies pressure from the bottom side thereof and the internal float thus operates a switch on its top side with its that movement.
- the water that overflows from the machine firstly runs onto the internal float from the grooves on the float slot and then into the external float from the cavities on the edge of the internal float.
- This movement of the water extends the time of the water that enters the device first to move the internal float and the operation of the switch is also delayed.
- the rapid accession of the water occasionally onto the internal float causes water to jump and reach the switch.
- the inventive apparatus disclosed herebelow has been developed to ensure a more rapid detection of the overflowing water.
- the accession of the water to the switch is also prevented.
- the overflow detection apparatus comprises a pool in which the overflowing water accumulates, a float which can move up and down with the movement of the water inside the pool, a cap which covers the top of the pool and has the inlet ports that allow water to be filled into the pool and a switch which is triggered by the contact of the float with its up movement.
- the inlet pipe is used to direct the water that overflows from the machine into the pool.
- the inlet pipe extends somewhat beginning from the top side of the cap towards the bottom side of the float.
- On the edges of the float there is provided at least one hole.
- Each hole has been formed to allow the water that comes from the water inlet pipes on the cap to directly run towards the bottom of the float.
- the inlet pipes on the cap have been positioned so as to engage into these holes.
- the water that overflows from the machine is directly directed towards the bottom of the float, i.e. towards the grooves in the pool, and the float is ensured to move up rapidly as the pool is filled.
- the more rapid elevation of the water is provided by ensuring the reservoir in which the water is collected inside the pool to be smaller than the total area of the pool.
- directing the overflowing water from the inlet pipe directly towards the beneath of the float prevents water to reach the switch by splashing.
- Another aim of the invention is to prevent water to reach the switch by jumping through directing the overflowing water from the inlet pipe in the apparatus directly towards the bottom of the float.
- Yet another aim of the invention is to ensure the more rapid elevation of the water by keeping the reservoir in which the water is collected inside the pool smaller than the total area of the pool and thus allowing a more rapid detection.
- Fig. 1 provides a side sectional view of the overflow detection apparatus (A) which is used to detect the water that is taken excessively in washing machines or leaks out from the hydraulic connections.
- the apparatus (A) of which side perspective view is provided in fig. 2 comprises a pool (2) in which the overflowing water accumulates, a float (1) which can move up and down with the movement of the water inside the pool (2), a cap (3) which covers the top of the pool (2) and has inlet pipes (31) that allow water to be filled into the pool (2) and a switch (4) which is triggered by the contact of the float (1) with its up movement.
- Figs 3-4 provide the bottom and the top perspective views of the float (1).
- a protrusion (11) which is formed to contact the switch as a result of the water lifting.
- On the top of the float (1) (shown on the edge in the figures), there is provided at least one hole (12).
- Each hole (12) has been formed to allow the water that comes from the water inlet pipes (31) (figure - 9) on the cap (3) to directly run towards the bottom of the float (1).
- the inlet pipes (31) on the cap (3) have been positioned so as to enter into these holes (12).
- a channel (13) beginning from each hole (12) and extending inwards (towards the middle of the float). These channels (13) are opened to a joint channel (14) which is formed so as to leave a plain area therein.
- the intended use of these said channels (13, 14) is to guide around the side walls which are formed by the water passage grooves (21) inside the pool (2).
- projections (15) which are formed to minimize the contact of the float (1) with the surfaces on which it resides. In this way, it is prevented the bottom surface of the float (1) to stick to the pool (2) because of the overflowing water.
- Fig. 5 provides a top perspective view of the pool.
- Each groove (21) has been arranged so as to confront with the hole (12) and the channel (13) on the float (1).
- the inner surface of the groove (21) is slanted so as to allow water to run from the edge towards the inside.
- Each groove (21) is opened to the collection reservoir (22) in the middle of the pool (2).
- the collection reservoir (22) is the part where the water accumulates.
- the water that accumulates allows the up movement of the float (1).
- a hole (23) which is normally closed. When this hole (23) is opened, the water inside the pool (2) is discharged out.
- connection arms (24, 24') which are used to fix the apparatus (A) onto a surface (These connection arms (24, 24') can also be positioned on the cap (3)). Between the connection arms (24, 24'), there is provided at least one projection (27) extending outwards from the side of the pool (2) (or the cap (3)). In case the apparatus (A) is fitted onto a surface with the help of the connection arms (24, 24'), these projections (27) also rest on said surface and this reduces the oscillation amount of the apparatus (A) due to various reasons (operation of the machine, the overflow of the water, the movement of the float, etc.).
- At least one snap fit (25) is used in order to ensure the combination with the cap (3).
- at least one male or female positioning guide (26) on the pool (2).
- at least one more guide (36) of similar form so as to confront with this guide (shown in figure - 8).
- Fig. 6 provides a top perspective view of both the pool (2) and the float (1) together. As also shown in this exemplary figure, the holes (12) on the float (1) have been arranged so as to confront with the grooves (21) on the pool (2).
- Figs. 7 and 8 provide the top and the bottom perspective views of the cap (3).
- On the edges of the cap (3) there is provided at least one snap fit (35) which is formed so as to combine with each snap fit (25) in the pool (2).
- On the top side of the cap (3) there is provided a connection means (39) to which said switch (4) can be fitted.
- the switch (4) which is fixed on this means (39) is triggered with the contact of the protrusion (11) on the float (1) which moves up with the elevation of the water in the pool (2). Therefore, on the top side of the cap (3), there is provided an opening (38) of adequate size through which said protrusion (11) can be passed.
- This pipe (31) is used to direct the water that overflows from the machine into the pool (2).
- each inlet pipe (31) has been positioned so as to enter a hole (12) on the float (1) in the assembled apparatus (A).
- the inlet pipe (31) extends somewhat beginning from the top side of the cap towards the bottom side of the float (1). In this way, the water that overflows from the machine is directly directed towards the beneath of the float (1), i.e. towards the grooves (21) in the pool (2), and the float (1) is ensured to move up rapidly as the pool (2) is filled (the direction of movement of the overflow water is shown with the arrows in figure - 9).
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Level Indicators Using A Float (AREA)
- Sink And Installation For Waste Water (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Air Bags (AREA)
- Slot Machines And Peripheral Devices (AREA)
- Automatic Disk Changers (AREA)
Abstract
Description
- The invention relates to an overflow detector used for the detection of the water that overflows in washing machines or leaks out from the hydraulic connections thereof.
- The problems such as overage of the water taken occasionally in washing machines, slanting ground on which the machine resides, leakage from the hydraulic connections cause the utility water to leak out from these machines. In order to prevent the water overflow, these machines are provided with overflow detecting systems. In the prior art, the device which prevents the overflow disclosed in the published patent application
TR200200809 WO 0207581 - The overflow detection apparatus according to the invention comprises a pool in which the overflowing water accumulates, a float which can move up and down with the movement of the water inside the pool, a cap which covers the top of the pool and has the inlet ports that allow water to be filled into the pool and a switch which is triggered by the contact of the float with its up movement. There is provided at least one water inlet pipe on the cap. The inlet pipe is used to direct the water that overflows from the machine into the pool. The inlet pipe extends somewhat beginning from the top side of the cap towards the bottom side of the float. On the edges of the float, there is provided at least one hole. Each hole has been formed to allow the water that comes from the water inlet pipes on the cap to directly run towards the bottom of the float. In the assembled apparatus, the inlet pipes on the cap have been positioned so as to engage into these holes. In this way, the water that overflows from the machine is directly directed towards the bottom of the float, i.e. towards the grooves in the pool, and the float is ensured to move up rapidly as the pool is filled. Furthermore, the more rapid elevation of the water is provided by ensuring the reservoir in which the water is collected inside the pool to be smaller than the total area of the pool. In addition, directing the overflowing water from the inlet pipe directly towards the beneath of the float prevents water to reach the switch by splashing.
- It is an aim of the invention to form an overflow detection apparatus in washing machines with which the overflowing water is detected rapidly through directing the overflowing water from the inlet pipe in the apparatus directly towards the bottom of the float.
- Another aim of the invention is to prevent water to reach the switch by jumping through directing the overflowing water from the inlet pipe in the apparatus directly towards the bottom of the float.
- Yet another aim of the invention is to ensure the more rapid elevation of the water by keeping the reservoir in which the water is collected inside the pool smaller than the total area of the pool and thus allowing a more rapid detection.
- The exemplary embodiments regarding the inventive overflow detection apparatus are shown in the attached drawings, wherein:
-
Fig. 1 is a side sectional view of the overflow detection apparatus. -
Fig. 2 is a side perspective view of the overflow detection apparatus. -
Fig. 3 is a bottom perspective view of the float. -
Fig. 4 is a top perspective view of the float. -
Fig. 5 is a top perspective view of the pool. -
Fig. 6 is a top perspective view of both the pool and the float together. -
Fig. 7 is a top perspective view of the cap. -
Fig. 8 is a bottom perspective view of the cap. -
Fig. 9 is a side sectional view of the overflow detection apparatus. - The parts in the figures are numbered one by one and the corresponding terms of these numbers are given below.
-
- Float (1)
- Pool (2)
- Cap (3)
- Switch (4)
- Protrusion (11)
- Hole (12)
- Channel (13)
- Channel (14)
- Projection (15)
- Groove (21)
- Reservoir (22)
- Hole (23)
- Connection arms (24, 24')
- Snap fit (25)
- Guide (26)
- Projection (27)
- Inlet pipe (31)
- Snap fit (35)
- Guide (36)
- Opening (38)
- Connection means (39)
-
Fig. 1 provides a side sectional view of the overflow detection apparatus (A) which is used to detect the water that is taken excessively in washing machines or leaks out from the hydraulic connections. The apparatus (A) of which side perspective view is provided infig. 2 comprises a pool (2) in which the overflowing water accumulates, a float (1) which can move up and down with the movement of the water inside the pool (2), a cap (3) which covers the top of the pool (2) and has inlet pipes (31) that allow water to be filled into the pool (2) and a switch (4) which is triggered by the contact of the float (1) with its up movement. -
Figs 3-4 provide the bottom and the top perspective views of the float (1). On the top surface of the float (1), there is provided a protrusion (11) which is formed to contact the switch as a result of the water lifting. On the top of the float (1) (shown on the edge in the figures), there is provided at least one hole (12). Each hole (12) has been formed to allow the water that comes from the water inlet pipes (31) (figure - 9) on the cap (3) to directly run towards the bottom of the float (1). In the assembled apparatus (A), the inlet pipes (31) on the cap (3) have been positioned so as to enter into these holes (12). On the bottom side of the float (1), there is provided a channel (13) beginning from each hole (12) and extending inwards (towards the middle of the float). These channels (13) are opened to a joint channel (14) which is formed so as to leave a plain area therein. The intended use of these said channels (13, 14) is to guide around the side walls which are formed by the water passage grooves (21) inside the pool (2). On the bottom side of the float (1), there are provided projections (15) which are formed to minimize the contact of the float (1) with the surfaces on which it resides. In this way, it is prevented the bottom surface of the float (1) to stick to the pool (2) because of the overflowing water. -
Fig. 5 provides a top perspective view of the pool. There is provided at least one water passage groove (21) that extends inwards from the edge of the pool (2). Each groove (21) has been arranged so as to confront with the hole (12) and the channel (13) on the float (1). The inner surface of the groove (21) is slanted so as to allow water to run from the edge towards the inside. Each groove (21) is opened to the collection reservoir (22) in the middle of the pool (2). The collection reservoir (22) is the part where the water accumulates. The water that accumulates here allows the up movement of the float (1). In order to discharge the water that accumulates in the reservoir (22), there is provided a hole (23) which is normally closed. When this hole (23) is opened, the water inside the pool (2) is discharged out. On the pool (2), there are provided connection arms (24, 24') which are used to fix the apparatus (A) onto a surface (These connection arms (24, 24') can also be positioned on the cap (3)). Between the connection arms (24, 24'), there is provided at least one projection (27) extending outwards from the side of the pool (2) (or the cap (3)). In case the apparatus (A) is fitted onto a surface with the help of the connection arms (24, 24'), these projections (27) also rest on said surface and this reduces the oscillation amount of the apparatus (A) due to various reasons (operation of the machine, the overflow of the water, the movement of the float, etc.). Again on the edge side of the pool (2), at least one snap fit (25) is used in order to ensure the combination with the cap (3). Also, in order to keep the layout position of the cap (3) always same relative to the pool (2), there is provided at least one male or female positioning guide (26) on the pool (2). Likewise, on the cap (3), there is provided at least one more guide (36) of similar form so as to confront with this guide (shown in figure - 8). -
Fig. 6 provides a top perspective view of both the pool (2) and the float (1) together. As also shown in this exemplary figure, the holes (12) on the float (1) have been arranged so as to confront with the grooves (21) on the pool (2). -
Figs. 7 and 8 provide the top and the bottom perspective views of the cap (3). On the edges of the cap (3), there is provided at least one snap fit (35) which is formed so as to combine with each snap fit (25) in the pool (2). On the top side of the cap (3), there is provided a connection means (39) to which said switch (4) can be fitted. The switch (4) which is fixed on this means (39) is triggered with the contact of the protrusion (11) on the float (1) which moves up with the elevation of the water in the pool (2). Therefore, on the top side of the cap (3), there is provided an opening (38) of adequate size through which said protrusion (11) can be passed. There is provided at least one water inlet pipe (31) on the cap (3). This pipe (31) is used to direct the water that overflows from the machine into the pool (2). As also shown infig. 9 , each inlet pipe (31) has been positioned so as to enter a hole (12) on the float (1) in the assembled apparatus (A). Furthermore, the inlet pipe (31) extends somewhat beginning from the top side of the cap towards the bottom side of the float (1). In this way, the water that overflows from the machine is directly directed towards the beneath of the float (1), i.e. towards the grooves (21) in the pool (2), and the float (1) is ensured to move up rapidly as the pool (2) is filled (the direction of movement of the overflow water is shown with the arrows in figure - 9). In addition, directing the overflowing water from the inlet pipe (31) directly towards the bottom of the float (1) prevents water to reach the switch by splashing. As a result of triggering the switch (4) by the float (1), the information that the water overflowing from the washing machine has reached the upper limit is also detected by a circuit connected to the switch (4) so that the machine is prevented to take more water and thus to leak water out.
Claims (17)
- An overflow detection apparatus (A), which is used to detect the overflowing water in washing machines, comprising a pool (2) in which the overflowing water accumulates, a float (1) which can move up and down with the movement of the water inside the pool (2), a cap (3) which covers the top of the pool (2) and has inlet pipes (31) that allow water to be filled into the pool (2) and a switch (4) which is triggered by the contact of the float (1) with its up movement, characterized in that in order to allow water that comes from at least one water inlet pipe (31) on the cap (3) to directly run towards the bottom of the float (1), each inlet pipe (31) is positioned such that it begins from the top side of said cap (3) and enters into at least one hole (12) on the float (1).
- An apparatus (A) according to claim 1, characterized in that the float (1) comprises a protrusion (11) on its top surface in order to trigger the switch (4) by contacting it as a result of the water lifting.
- An apparatus (A) according to claim 1, characterized in that in order to prevent the bottom surface of the float (1) to stick to the pool (2) because of the overflowing water, on the bottom side of the float (1), there are provided projections (15) which minimize the contact of the float (1) with the surfaces on which it resides.
- An apparatus (A) according to claim 1, characterized in that on the bottom side of the float (1), there is provided a channel (13) beginning from each hole (12) and extending towards the middle of the float.
- An apparatus (A) according to claim 4, characterized in that said channels (13) are opened to a joint channel (14) which is formed so as to leave a plain area therein.
- An apparatus (A) according to claim 1, characterized in that there is provided at least one water passage groove (21) which extends inwards from the edge of the pool (2) and is opened into the water collection reservoir (22) in the middle of the pool (2).
- An apparatus (A) according to claim 6, characterized in that each groove (21) is located so as to confront with the hole (12) and the channel (13) on the float (1).
- An apparatus (A) according to claim 6, characterized in that the inner surface of the groove (21) is slanted so as to allow water to run from the edge towards the inside.
- An apparatus (A) according to claim 6, characterized in that in the collection reservoir (22), there is provided a discharge hole (23) which is normally closed.
- An apparatus (A) according to claim 1, characterized in that on the pool (2), there are provided connection arms (24, 24') which are used to fix the apparatus (A) onto a surface.
- An apparatus (A) according to claim 1, characterized in that on the cap (3), there are provided connection arms (24, 24') which are used to fix the apparatus (A) onto a surface.
- An apparatus (A) according to claim 1, characterized in that for the combination of the pool (2) and the cap (3), there are provided at least one snap fit (25) on the edge side of the pool (2) and at least one snap fit (35) which is formed so as to engage with each snap fit (25) in the pool (2) on the edges of the cap (3).
- An apparatus (A) according to claim 1, characterized in that in order to keep the layout position of the cap (3) and the pool (2) always same relative to each other, there are provided at least one male or female positioning guide (26) on the pool (2) and at least one guide (36) of similar form so as to confront with this guide on the cap (3).
- An apparatus (A) according to claim 1, characterized in that on the top side of the cap (3), there is provided a connection means (39) to which said switch (4) can be fitted.
- An apparatus (A) according to claim 2, characterized in that on the top side of the cap (3), there is provided an opening (38) of adequate size through which said protrusion (11) can be passed.
- An apparatus (A) according to claim 10, characterized in that between the connection arms (24, 24'), there is provided at least one projection (27) extending outwards from the side of the pool (2).
- An apparatus (A) according to claim 11, characterized in that between the connection arms (24, 24'), there is provided at least one projection (27) extending outwards from the side of the cap (3).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT07104156T PT1970481E (en) | 2007-03-14 | 2007-03-14 | Overflow detection apparatus |
ES07104156T ES2352429T3 (en) | 2007-03-14 | 2007-03-14 | DEVICE FOR OVERFLOW DETECTION. |
EP07104156A EP1970481B1 (en) | 2007-03-14 | 2007-03-14 | Overflow detection apparatus |
AT07104156T ATE483845T1 (en) | 2007-03-14 | 2007-03-14 | DEVICE FOR DETECTING AN OVERFLOW |
DE602007009635T DE602007009635D1 (en) | 2007-03-14 | 2007-03-14 | Device for detecting an overflow |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07104156A EP1970481B1 (en) | 2007-03-14 | 2007-03-14 | Overflow detection apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1970481A1 EP1970481A1 (en) | 2008-09-17 |
EP1970481B1 true EP1970481B1 (en) | 2010-10-06 |
Family
ID=38293119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07104156A Active EP1970481B1 (en) | 2007-03-14 | 2007-03-14 | Overflow detection apparatus |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1970481B1 (en) |
AT (1) | ATE483845T1 (en) |
DE (1) | DE602007009635D1 (en) |
ES (1) | ES2352429T3 (en) |
PT (1) | PT1970481E (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104665738B (en) * | 2013-12-02 | 2017-11-10 | 海尔集团公司 | The water-spill-over protection device and dish-washing machine of a kind of dish-washing machine |
CN108042084A (en) * | 2018-01-22 | 2018-05-18 | 佛山市顺德区美的洗涤电器制造有限公司 | The base assembly of dish-washing machine |
CN109464046A (en) * | 2018-12-27 | 2019-03-15 | 宁波美高厨具有限公司 | Excess flow protection device and its sink type fruit vegetable cleaner |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3829636A (en) * | 1973-02-27 | 1974-08-13 | Westinghouse Electric Corp | Overflow control dashpot-type float for a dishwasher switch assembly |
US5365969A (en) * | 1994-01-21 | 1994-11-22 | White Consolidated Industries, Inc. | Float with skirt to prevent leakage due to oversudsing |
IT1298747B1 (en) * | 1998-03-16 | 2000-02-02 | Smeg Spa | DISHWASHER OR WASHING MACHINE WITH ANTI-FLOODING DEVICE FUNCTIONALITY VERIFICATION ELEMENT |
ATE385729T1 (en) * | 2000-07-26 | 2008-03-15 | Arcelik As | SAFETY DEVICE AGAINST FLOODING |
TR200606459T1 (en) * | 2004-05-25 | 2007-04-24 | Arçeli̇k Anoni̇m Şi̇rketi̇ | A washing machine that prevents water from overflowing |
-
2007
- 2007-03-14 AT AT07104156T patent/ATE483845T1/en not_active IP Right Cessation
- 2007-03-14 DE DE602007009635T patent/DE602007009635D1/en active Active
- 2007-03-14 ES ES07104156T patent/ES2352429T3/en active Active
- 2007-03-14 PT PT07104156T patent/PT1970481E/en unknown
- 2007-03-14 EP EP07104156A patent/EP1970481B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE602007009635D1 (en) | 2010-11-18 |
PT1970481E (en) | 2010-11-24 |
ATE483845T1 (en) | 2010-10-15 |
ES2352429T3 (en) | 2011-02-18 |
EP1970481A1 (en) | 2008-09-17 |
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