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
  • D06F58/00—Domestic laundry dryers
  • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
  • D06F58/04—Details 

Definitions

• the present invention relates to a laundry dryer comprising an integrated base unit produced from plastic material.
• the drying air moved by a blower is heated by a heater that is generally disposed in a drying duct situated on the rear wall of the body and is delivered into the drum.
• the drying air blower operates in a spiral shaped blower housing which is positioned at the lower side of the drum and which forms a portion of the base unit produced from plastic material in one piece.
• the air sucked by the blower from the outside and delivered to the drying duct from the outlet of the blower housing is passed over the heater disposed in the drying duct on the upper side of the blower housing. Lints are present in the air circulating in the drying cycle and there is a chance of fire hazard for the lints passing over the heater.
• the base unit is susceptible to fire since it is entirely produced from plastic material. Therefore, producing the base unit from a nonflammable or flame resistant material can be considered, however the cost of materials with flame resistant features is quite high.
• laundry dryers are explained comprising plastic integrated base unit that is installed at the lower side of the drum and that supports the condenser, the drum motor and the blowers used in the drying process.
• the aim of the present invention is to realize a laundry dryer that is
• an insulating panel produced from nonflammable or flame resistant material, fixed to the blower housing and covering the inner surface of the blower housing partially or entirely.
• the insulating panel protects the blower housing wherein lints are collected and pose fire hazard and hence the base unit, whereto the blower housing is connected, against flames.
• the insulating panel is
• the insulating panel is produced from flame resistant plastic material and is shaped arc form in a plastic injection mold.
• the insulating panel is produced from flame resistant plastic material and is shaped in spiral form so as to entirely cover the inner surface of the blower housing.
• the insulating panel has fastening claws that provide the insulating panel to be fixed easily to the blower housing with snap-fit method by pushing from the front.
• a water discharge hole is disposed at the lower side of the blower housing inner surface providing the water collected during the drying cycle to be discharged and the insulating panel is fixed to the blower housing with a protrusion that is seated in the water discharge hole having an opening at the center thereof which is almost concentric with the water discharge hole.
• ribs are disposed on the insulating panel, that prevent the insulating panel from being deformed by strengthening the structure thereof.
• a recess is disposed in the blower housing that is formed by cutting out the inner surface thereof as much as the wall thickness of the insulating panel and which provides the insulating panel to be seated onto the inner surface of the blower housing without making a protrusion.
• the insulating panel comprises bent edges of flexible configuration, bearing against the inner wall of the recess and formed by bending the end portions of the sides almost 90 degrees.
• the insulating panel is produced from plastic material and is fixed to the blower housing by vibration welding.
• the insulating panel is produced from plastic material and is fixed to the blower housing by hot-setting adhesion.
• the insulating material is produced from aluminum folio.
• Figure 1 - is the sideways perspective view of a laundry dryer.
• Figure 2 - is the rear perspective view of a laundry dryer.
• Figure 3 - is the perspective view of a blower housing and an insulating panel.
• Figure 4 - is the schematic view of a blower housing.
• Figure 5 - is the detailed cross sectional view of the insulating panel disposed in a blower housing.
• Figure 6 - is the view of detail A in Figure 3.
• Figure 7 - is the top view of an insulating panel.
• Figure 8 - is the bottom view of an insulating panel.
• Figure 9 - is the perspective view of a base unit and a spiral shaped insulating panel.
• the laundry dryer (1) comprises a body (2), a drum (3) wherein the
• a blower (4) that provides the circulation of the process air
• a heater (5) disposed at the rear of the body (2) and that heats the process air
• a motor (6) that rotates the blower (4) and the drum (3)
• a condenser (not shown in the figures) that provides the removal of the moisture in the process air
• a cooling blower (not shown in the figures) that provides the condenser to be cooled
• a spiral shaped blower housing (8) connected to the base unit (7) and wherein the blower (4) operates
• a drying duct (9) disposed at the rear of the body (2) that extends from the blower housing (8) to the heater (5) disposed at the upper side and which guides the air sucked by the blower (4) to the heater (5).
• the laundry dryer (1) of the present invention comprises an insulating
• blower housing (8) Since the blower housing (8) is disposed at the lower side of the drying duct (9), lints are accumulated in the blower housing (8) in the drying cycle. The lints passing over the heater (5) and falling into the blower housing (8) by burning can inflame and burn the lints in that region.
• the insulating panel (10) covers partially or entirely the inner surface of the blower housing (8) wherein the lints are accumulated and pose fire hazard and protects the blower housing (8) and the base unit (7), whereto the blower housing (8) is connected, against flames.
• the laundry dryer (1 ) comprises the insulating panel (10) produced by bending a rectangular iron sheet to be shaped in arc shapedand fixed to the blower housing (8) so as to cover the lower side of the blower housing (8) inner surface that corresponds to the projection of the heater (5) in the vertical direction ( Figure 3).
• the laundry dryer (1) comprises the insulating panel (10) produced from flame resistant plastic material, shaped in a plastic injection mold in arc shaped and fixed to the blower housing (8) so as to cover the lower side of the blower housing (8) inner surface that corresponds to the projection of the heater (5) in the vertical direction.
• the laundry dryer (1) comprises the insulating panel (10) manufactured of flame resistant plastic material and fixed to the blower housing (8) having spiral shape so as to cover the inner surface of the blower housing (8) entirely ( Figure 9).
• the insulating panel (10) comprises more than one fastening claw (1 1 ) providing the insulating panel (10) to be fixed to the blower housing (8) by pushing from the front with snap-fit method (Figure 8).
• the the insulating panel (10) comprises a water discharge hole (12) disposed at the bottom side of the blower housing (8) inner surface, providing the water collected during the drying cycle to be discharged and a protrusion (13), seated in the water discharge hole (12) produced by deep drawn method and having an opening (17) at the center thereof that is almost concentric with the water discharge hole (12) ( Figure 5).
• the insulating panel (10) is fixed to the blower housing (8) by means of the protrusion (13) seated in the water discharge hole (12).
• the opening (17) the water collected in the blower housing (8) is allowed to pass to the water discharge hole (12), furthermore the protrusion (13) extends into the water discharge hole (12) thereby providing a flame resistant insulation in this region also.
• the insulating panel (10) comprises one or more ribs (14) that prevent deformation by strengthening the structure thereof ( Figure 6, Figure 7, Figure 8).
• the laundry dryer (1) has a recess (15) disposed in the blower housing (8) that is formed by cutting out the inner surface as much as the wall thickness of the insulating panel (10) and which provides the insulating panel (10) to be seated on the inner surface of the blower housing (8) without making a protrusion and the insulating panel (10) comprises one or more bent edges (16) of flexible configuration, bearing against the inner wall of the recess (15), formed by bending the end portions of the sides almost 90 degrees and providing the insulating panel (10) to be installed to the blower housing (8) in
• the insulating panel (10) is produced from plastic material and is fixed to the blower housing (8) by vibration welding.
• the insulating panel (10) is produced from plastic material and is fixed to the blower housing (8) by hot-setting adhesion.
• the insulating panel (10) is produced from aluminum folio.
• the fire susceptible plastic base unit (7) is provided to be protected.
• the region having the highest fire hazard due to accumulation of lints is covered by the insulating panel (10) with nonflammable or fire resistant properties and cost advantage is provided.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2010
  • 2010-12-17 EP EP10793254A patent/EP2519683A1/de not_active Withdrawn
  • 2010-12-17 WO PCT/EP2010/070035 patent/WO2011080121A1/en active Application Filing

Non-Patent Citations (1)

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