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
  • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
  • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

• the present invention relates to a household appliance with enhanced safety.
• Household appliances such as laundry washing machines/dryers, have energizing circuits comprising various circuit components such as capacitors, printed circuit-boards, cables and sockets enabling cable connections.
• Circuit components with risk of ignition are usually placed in a housing in order to protect them from external environment conditions and to provide safety of the household appliance and its environment in case of a malfunction.
• capacitors require significant safety measures as they bear the risk of burning and exploding under high voltage, extreme temperature and resonance conditions. Therefore, placement of capacitors in a housing so as not to be affected by the remaining components is critical in terms of safety.
• malfunctions in capacitors may easily affect the other components disposed nearby, leading to failure and ignition of a plurality of circuit components.
• the circuit components may cause safety vulnerabilities by contacting each other due to incorrect placement or insecure fastening of circuit components in a housing, or the impacts and vibrations a household appliance is subjected to during transportation.
• EP3004760 describes a household appliance having a seat in which electronic components are housed.
• the aim of the present invention is to realize a household appliance in which electrical components are safely housed.
• the household appliance realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises an energizing circuit comprising at least one capacitor in addition to other circuit components such as processor, printed circuit board (PCB) or electricity transmission cables, and a housing in which is placed a plurality of circuit components of the energizing circuit including the capacitor.
• a shield is provided in the housing, acting as a barrier between the capacitor and the other circuit components, and the capacitor is placed behind the shield. The shield at least partially surrounds the capacitor, enabling physically isolating the capacitor from the other circuit components disposed in the housing.
• the capacitor is fastened on the shield so as to be placed in a seat provided on the shield.
• the capacitor is fitted in the seat so as to be borne and supported by the shield disposed on the housing.
• the capacitor is thus enabled to be correctly and conveniently positioned at all times, achieving ease of assembly. This also enables eliminating the safety problems likely to occur due to the capacitor not being concealed by the shield as a result of its incorrect placement.
• the shield is hinged on the housing wall so as to be pivotable about a rotational axis.
• the shield can be moved by being pivoted between the position in which the capacitor is disposed between it and the housing and the position in which it allows access to the capacitor.
• the capacitor is enclosed in the designated volume between the shield and the housing upon pivoting of the shield, enabling assembly to be performed quickly and easily.
• coupling means are provided on the shield and the housing, enabling snap-fit attachment of the shield to the housing.
• the coupling means preferably comprise at least one detent and a recess into which the detent engages. The shield is thus enabled to be easily and securely fastened on the housing.
• projections are provided on the shield, enabling maintaining the distance between the circuit components and the capacitor by abutting against the other circuit components in the housing.
• the projections enable keeping the safe distance between the capacitor and the adjacent circuit components at all times. The capacitor is thus prevented from contacting adjacent circuit components due to assembly errors or displacement of the circuit components.
• the housing comprises a body in which at least one circuit component is placed and a cover covering the body, and the shield is mounted on the cover.
• This embodiment is advantageous in that it enables easy access to the capacitor by means of removing the cover from the body.
• the invention enables isolating the capacitor from the inner volume of the housing by being concealed by the shield, effectively reducing capacitor induced damages.
• Figure 1 is a schematic view of the household appliance of an embodiment of the invention.
• Figure 2 is a perspective view of the housing of an embodiment of the invention.
• Figure 3 is a partial view of the energizing circuit and the housing of another embodiment of the invention.
• Figure 4 is a perspective view of the shield of another embodiment of the invention.
• the household appliance (1) comprises an energizing circuit (5) having at least one capacitor (2) on which various circuit components (2, 3, 4) such as a printed circuit-board (3), sockets (4) and a capacitor (2) are provided and a housing (6) into which a plurality of circuit components (2, 3, 4) of the energizing circuit (5) including the capacitor (2) is placed.
• the energizing circuit (5) enabling operating the household appliance (1) comprises various circuit components (2, 3, 4) such as a printed circuit board (3), capacitor (2), cables and the sockets (4) enabling cable connections.
• At least a part of the circuit components (2, 3, 4), particularly the circuit components (2, 3, 4) with high risk of ignition are placed in the housing (6) provided in the household appliance (1), which is preferably shaped as an enclosed box.
• the housing (6) accommodating therein the circuit components (2, 3, 4) with high ignition risk, enables preventing the other components of the household appliance (1) disposed out of the housing (6) from being damaged in case of a malfunction, enhancing safety of the household appliance (1)
• the household appliance (1) of the invention comprises a shield (7) provided in the housing (6), at least partially covering the capacitor (2) so as to isolate it from the other circuit components (3, 4) disposed in the housing (6).
• the capacitor (2) rests behind the shield (7) so as not to face at least part of the other circuit components (3, 4) in the housing (6).
• the shield (7) thus conceals the capacitor (2) from the other circuit components (3, 4) in the housing (6), preventing a likely damage on the capacitor (2) from affecting the other circuit components (3, 4) in the housing (6).
• maintenance costs are reduced and safety of the household appliance (1) is effectively enhanced.
• a seat (8) is provided on the shield (7), in which the capacitor (2) is placed.
• the seat (8) is designed in a form suitable for placement of the capacitor (2) therein, and the capacitor (2) is fastened on the shield (7) by being fitted into the seat (8).
• the seat (8) is shaped as a cavity in which the capacitor (2) is form-fitted. This eliminates the need to allocate a space on the housing (6) surfaces for placing the capacitor (2) and the need to place fastening and connection members thereon, thereby providing ease of assembly while utilizing the volume in the housing (6) efficiently.
• the shield (7) is hinged on the housing (6) so as to enable it to be moved by being pivoted.
• the shield (7) is preferably shaped as a plate hinged from an end thereof on an inner surface of the housing (6). After assembly of the capacitor (2), the shield (7) is pivoted, bringing it to a position in which the capacitor (2) is enclosed in between itself and the housing (6) wall, and is fixed on the housing (6).
• the shield (7) is prevented from causing difficulty in assembly of the circuit components (2, 3, 4) thanks to being movable, and the circuit components (2, 3, 4), particularly the capacitor (2) can be mounted on the housing (6) or the shield (7) without requiring complete removal of the shield (7) from the housing (6).
• the household appliance (1) comprises coupling means (9) enabling snap-fit fastening of the shield (7) on the housing (6).
• the coupling means (9) engage each other, enabling the shield (7) to be detachably fastened on the housing (6) without requiring further fastening operations.
• the coupling means (9) comprise a detent (10) provided on the shield (7), and a recess (11) provided on the housing (6), into which the detent (10) engages.
• the detent (10) provided on the shield (7) engages into the recess (11) disposed on the housing (6). This enables the shield (7) to be firmly and rigidly attached on the housing (6) and to be easily removed from the housing (6) when required.
• At least one projection (12) is provided on the shield (7), extending from the shield (7) towards the interior of the housing (6).
• the projections (12) are provided on the outer surface of the shield (7) facing towards the interior of the housing (6), preventing the other circuit components (3, 4) provided in the housing (6) from contacting the shield (7) and therefore the capacitor (2).
• a safe distance is thus maintained between the capacitor (2) and the other circuit components (3, 4) in the housing (6). This enables keeping the other circuit components (3, 4) in the housing (6), particularly the cables and the sockets (4) away from the vicinity of the capacitor (2) by means of the projections (12), preventing the circuit components (2, 3, 4) from affecting each other.
• the housing (6) comprises a body (13) shaped as an open-top box and a cover (14) covering the body (13), and the shield (7) is provided on the cover (14).
• the capacitor (2) and the shield (7) surrounding the capacitor (2) are disposed on the cover (14), and the other circuit components (3, 4) in the housing (6) are placed on the body (13). This minimizes interaction between the capacitor (2) and the other circuit components (3, 4) provided in the housing (6), enabling safe placement of the capacitor (2).
• the shield (7) is made of insulating material.
• the shield (7) is made of insulating material, preferably plastic, enabling electrically insulating the capacitor (2) from the other circuit components (3, 4) in the housing (6). This enables protecting the capacitor (2) from magnetic fields and leakages caused by the other circuit components (3, 4) in the housing (6), reducing capacitor (2) failures.
• the household appliance (1) is a laundry washing machine and/or a dryer.
• a household appliance (1) in which circuit components are safely housed is realized by means of the present invention, by minimizing interaction between the capacitor (2) and the adjacent circuit components (3, 4). Safety vulnerabilities due to malfunctions likely to arise in the energizing circuit are thus effectively reduced.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=66001187

Family Applications (1)

Country Status (2)

Family Cites Families (5)

• 2019
  • 2019-03-26 EP EP19715025.3A patent/EP3775350A1/de not_active Withdrawn
  • 2019-03-26 WO PCT/EP2019/057585 patent/WO2019197150A1/en unknown

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